CN101562235B - Double-sided light emitting device - Google Patents
Double-sided light emitting device Download PDFInfo
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- CN101562235B CN101562235B CN2009101389961A CN200910138996A CN101562235B CN 101562235 B CN101562235 B CN 101562235B CN 2009101389961 A CN2009101389961 A CN 2009101389961A CN 200910138996 A CN200910138996 A CN 200910138996A CN 101562235 B CN101562235 B CN 101562235B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
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- H10K50/868—Arrangements for polarized light emission
Abstract
The present invention discloses a double-sided light emitting device including lower and upper substrates, an emission element formed between an inner surface of the upper substrate and an inner surface of the lower substrate and emitting predetermined light, an upper layer of polarizing material disposed on at least one of inner and outer surfaces of the upper substrate, and a lower layer of polarizing material disposed on at least one of inner and outer surfaces of the lower substrate.
Description
The application is be entitled as " double-sided light emitting device of submitting on May 27th, 2004 ", and application number is dividing an application of 200410045798.8 application for a patent for invention.
Technical field
The present invention relates to a kind of flat-panel monitor, and more especially, relate to a kind of bilateral organic light emitting apparatus that can prevent that the image definition quality from descending owing to exterior light.
Background technology
Flat-panel monitor such as organic light emitting apparatus, Field Emission Display (FED) etc. is subjected to because the influence that the external light intensity contrast obviously descends.In order to prevent this phenomenon, for example, adopted black matrix to stop exterior light.No matter whether use this black matrix, be difficult to all the time stop fully that the exterior light on the emitter region forms black state.
Simultaneously, in U.S. Patent No. 5,596, a kind of like this organic light emitting apparatus that uses circular polarizing disk to stop exterior light is disclosed in 246.Use traditional organic light emitting apparatus of circular polarizing disk to be provided with organic electroluminescent (EL) element, this element comprises transparency electrode, organic emission layer and the reflecting electrode that is formed on the dielectric substrate.Dielectric substrate uses the sealant (not shown) by the covering substrate package, and comprises that the circular polarizing disk of linear polarizer and λ/4 compensating plates is arranged on the outer surface of dielectric substrate.
As above Gou Zao traditional organic light emitting apparatus is designed to make that the angle between the λ/retardation axis of 4 compensating plates and the polarization axle of linear polarizer is 45 degree.Thus, exterior light becomes linearly polarized light by linear polarizer, and linearly polarized light becomes circularly polarized light by λ/4 compensating plates.Circularly polarized light is through reflective electrodes reflects, and becomes linearly polarized light through λ/4 compensating plates.This linearly polarized light absorbs and stops through linear polarizer.The advantage of above-mentioned traditional organic light emitting apparatus is that it can stop that exterior light improves contrast by using circular polarizing disk, and reflector plate stops exterior light but its shortcoming is it to need independently.
Summary of the invention
Therefore, one aspect of the present invention is to provide a kind of bilateral organic light emitting apparatus, can improve contrast by stopping exterior light.
Another aspect of the present invention is to provide a kind of bilateral organic light emitting apparatus, can the blocking reflected exterior light and the transmitted light of bottom.
Another aspect of the present invention is to provide a kind of bilateral organic light emitting apparatus, can improve the image definition quality.
Another aspect of the present invention is to provide a kind of bilateral organic light emitting apparatus, can by in the image viewing position and relative position two places stop that exterior light improves the image definition quality.
In order to realize these and/or others, a kind of double-sided light emitting device is provided, comprising: following substrate and last substrate; Radiated element is formed between the inner surface of the inner surface of substrate and following substrate and the predetermined light of emission; Top polarized material layer is arranged on the inner surface of substrate and in the outer surface at least one; And bottom polarized material layer, be arranged on down on the inner surface of substrate and in the outer surface at least one.
Bottom polarized material layer and top polarized material layer are for being coated in down the coating on substrate and the last substrate outer surface respectively, perhaps for being coated in down the coating on substrate and the last substrate inner surface respectively.Top polarized material layer is the coating that is coated on the substrate inner surface, bottom polarized material layer is the coating that is coated in down on the substrate outer surface, and or, top polarized material layer is the coating that is coated on the substrate outer surface, and bottom polarized material layer is the coating that is coated in down on the substrate inner surface.In addition, bottom polarized material layer and top polarized material layer are arranged so that its polarization axle is perpendicular to one another, and each all is the coating that has from about 0.1 μ m to 50.0 μ m thickness.
According to a further aspect in the invention, provide a kind of double-sided light emitting device, comprising: following substrate and last substrate; Radiated element is formed between the inner surface of the inner surface of substrate and following substrate and the predetermined light of emission; Upper polarizing sheet is arranged on the inner surface of substrate and in the outer surface any one; And lower polarizing sheet, be arranged on down on the inner surface of substrate and in the outer surface any one.
Lower polarizing sheet and upper polarizing sheet are for being combined in down the polarizing coating on substrate and the last substrate inner surface respectively.Upper polarizing sheet can be for being combined in the polarizing coating on the substrate inner surface, and lower polarizing sheet can be for being combined in down the polarizing coating on the substrate outer surface.In addition, upper polarizing sheet can be for being combined in the polarizing coating on the substrate outer surface, and lower polarizing sheet can be for being combined in down the polarizing coating on the substrate inner surface.Perhaps, lower polarizing sheet and upper polarizing sheet are for being combined in down the polarizing coating on substrate and the last substrate outer surface respectively.In addition, lower polarizing sheet and upper polarizing sheet are arranged so that its polarization axle is perpendicular to one another, and each all is the polarizing coating that has from about 50 μ m to 300 μ m thickness.
According to another aspect of the invention, provide a kind of double-sided light emitting device, comprising: following substrate and last substrate; Radiated element is formed between the inner surface of the inner surface of substrate and following substrate and the predetermined light of emission; The top polarizer is arranged on the inner surface of substrate and in the outer surface any one; The bottom polarizer is arranged on down on the inner surface of substrate and in the outer surface any one; The top compensating plate is arranged between top polarizer and the radiated element; And the bottom compensating plate, being arranged between bottom polarizer and the radiated element, the length of delay of each of its middle and lower part compensating plate and top compensating plate equals λ/4, and each angle of bottom compensating plate and top compensating plate and following substrate and last substrate.
Herein, be arranged on the angle of cut between the polarization axle of the retardation axis of the bottom compensating plate between bottom polarizer and the radiated element and bottom polarizer and be arranged on the retardation axis of the top compensating plate between top polarizer and the radiated element and the polarization axle of top polarizer between the angle of cut have opposite direction.
The bottom polarizer is arranged on down on the outer surface of substrate, the bottom compensating plate is arranged between the outer surface of bottom polarizer and following substrate, and the top polarizer is arranged on the outer surface of substrate, and the top compensating plate is arranged between the outer surface of top polarizer and last substrate.Perhaps, the bottom polarizer is arranged on down on the outer surface of substrate, the bottom compensating plate is arranged between the outer surface of bottom polarizer and following substrate, and the top polarizer is arranged on the inner surface of substrate, and the top compensating plate is arranged between the inner surface of top polarizer and last substrate.
Perhaps, the bottom polarizer can be arranged on down on the inner surface of substrate, the bottom compensating plate can be arranged between the inner surface of bottom polarizer and following substrate, and the top polarizer can be arranged on the inner surface of substrate, and the top compensating plate can be arranged between the inner surface of top polarizer and last substrate.Perhaps, the bottom polarizer can be arranged on down on the inner surface of substrate, the bottom compensating plate can be arranged between the inner surface of bottom polarizer and following substrate, and the top polarizer can be arranged on the outer surface of substrate, and the top compensating plate can be arranged between the outer surface of top polarizer and last substrate.
In addition, bottom compensating plate and top compensating plate comprise that at least one has the compensate film of predetermined phase difference retardation axis.When each phase difference retardation axis of bottom compensating plate and top compensating plate is that angle between the polarization axle of the retardation axis of λ/4 and bottom compensating plate and top compensating plate and bottom polarizer and top polarizer is when opposite each other, be incident on the observation place relative position of the light that penetrates from radiated element and by the exterior light of its transmission no longer towards observer's transmission, not only irrelevant for the angle between the phase difference retardation axis of the polarization axle of top polarizer and bottom compensating plate and top compensating plate, and have nothing to do for the angle between the phase difference retardation axis of the polarization axle of bottom polarizer and bottom compensating plate and top compensating plate.
In accordance with a further aspect of the present invention, provide a kind of double-sided light emitting device, comprising: following substrate and last substrate; Radiated element is formed between the inner surface of the inner surface of substrate and following substrate and the predetermined light of emission; The top polarizer is arranged on the inner surface of substrate and in the outer surface any one; The bottom polarizer is arranged on down on the inner surface of substrate and in the outer surface any one; And be arranged on the top compensating plate between top polarizer and the radiated element and be arranged on bottom compensating plate between bottom polarizer and the radiated element, wherein, angle between the polarization axle of the angle between the phase difference retardation axis of bottom compensating plate and the polarization axle of bottom polarizer and the phase difference retardation axis of top compensating plate and top polarizer is opposite each other, and wherein the light that is penetrated by radiated element is being observed from the position transmission of the light of radiated element ejaculation, and the exterior light of all observation places that are incident on this light and the position relative with this light observation place is blocked, and the exterior light of radiated element internal reflection is blocked.
In accordance with a further aspect of the present invention, provide a kind of double-sided light emitting device, comprising: following substrate and last substrate; Radiated element is formed between the inner surface of the inner surface of substrate and following substrate and the predetermined light of emission; The top polarizer is arranged on the inner surface of substrate and in the outer surface any one; And bottom polarizer, be arranged on down on the inner surface of substrate and in the outer surface any one, wherein, bottom polarizer and top polarizer are set, make the polarization axle of bottom polarizer and top polarizer be perpendicular to one another, and wherein the light that is penetrated by radiated element is in the position transmission of observing the light that penetrates from radiated element, and the exterior light of all observation places that are incident on this light and the position relative with this light observation place is blocked.
Each all is the polarized material coating that has from about 0.1 μ m to 50.0 μ m thickness for bottom polarizer and top polarizer, perhaps all is the polarizing coating that has from about 50 μ m to 300 μ m thickness.Bottom polarizer and top polarizer are separately positioned on down the inner surface of substrate and last substrate, and in down on the outer surface of substrate and last substrate any one, perhaps, bottom polarizer and top polarizer are separately positioned on the outer surface of the upper and lower substrate of inner surface of substrate, perhaps are separately positioned on the inner surface of the upper and lower substrate of outer surface of substrate.
Others of the present invention and/or advantage will partly embody in the following description, partly can be obvious by specification, and maybe will be by grasping and putting into practice the present invention and clear and definite.
Description of drawings
By the explanation of embodiment being carried out below in conjunction with accompanying drawing, will make these and/or others of the present invention and advantage becomes obviously and easy to understand more, in the accompanying drawing:
Fig. 1 illustrates the cross section structure according to the bilateral organic light emitting apparatus of first embodiment of the invention;
Fig. 2 illustrates the cross section structure according to the bilateral organic light emitting apparatus of second embodiment of the invention;
Fig. 3 illustrates the cross section structure according to the bilateral organic light emitting apparatus of third embodiment of the invention;
Fig. 4 illustrates the cross section structure according to the bilateral organic light emitting apparatus of fourth embodiment of the invention;
Fig. 5 illustrates the cross section structure according to the bilateral organic light emitting apparatus of fifth embodiment of the invention;
Fig. 6 illustrates the cross section structure according to the bilateral organic light emitting apparatus of sixth embodiment of the invention;
Fig. 7 illustrates the cross section structure according to the bilateral organic light emitting apparatus of seventh embodiment of the invention;
Fig. 8 illustrates the cross section structure according to the bilateral organic light emitting apparatus of eighth embodiment of the invention;
Fig. 9 A and 9B are for stopping the view of the principle of exterior light in the bilateral organic light emitting apparatus of explanation according to first embodiment of the invention;
Figure 10 illustrates the cross section structure according to the bilateral organic light emitting apparatus of ninth embodiment of the invention
Figure 11 illustrates the cross section structure according to the bilateral organic light emitting apparatus of tenth embodiment of the invention;
Figure 12 illustrates the cross section structure according to the bilateral organic light emitting apparatus of eleventh embodiment of the invention;
Figure 13 illustrates the cross section structure according to the bilateral organic light emitting apparatus of twelveth embodiment of the invention;
Figure 14 A and 14B are for stopping the view of the principle of exterior light in the bilateral organic light emitting apparatus of explanation according to ninth embodiment of the invention;
Figure 15 illustrates the cross section structure according to the bilateral organic light emitting apparatus of thriteenth embodiment of the invention;
Figure 16 illustrates the cross section structure according to the bilateral organic light emitting apparatus of fourteenth embodiment of the invention;
Figure 17 illustrates the cross section structure according to the bilateral organic light emitting apparatus of fifteenth embodiment of the invention;
Figure 18 illustrates the cross section structure according to the bilateral organic light emitting apparatus of sixteenth embodiment of the invention;
Figure 19 illustrates the cross section structure according to the bilateral organic light emitting apparatus of seventeenth embodiment of the invention; And
Figure 20 A and 20B are for stopping the view of the principle of exterior light in the bilateral organic light emitting apparatus of explanation according to thriteenth embodiment of the invention.
Embodiment
Below, will introduce embodiments of the invention in detail, its example is shown in the drawings, and in the accompanying drawing, identical Reference numeral is represented components identical all the time.Below, introduce embodiment with reference to the accompanying drawings, thereby the present invention will be described.
Fig. 1 shows the cross section structure according to the bilateral organic light emitting apparatus of first embodiment of the invention.
With reference to Fig. 1, under conduct, form anode electrode 120 on the dielectric substrate of substrate 110.Organic thin layer 130 is formed on the anode electrode 120.Cathode electrode 140 is formed on the organic thin layer 130.Passivation layer 150 is formed on the cathode electrode 140.Use the sealant (not shown) to combine and with its encapsulation as the covering substrate 160 of last substrate with following substrate 110.
Following substrate 110 and last substrate 160 can use the transparent substrates such as glass substrate to form.Anode electrode 120 is a transparency electrode, and its transparency conducting layer by deposition and composition ITO (tin indium oxide), IZO (indium zinc oxide) etc. on the inner surface of following substrate 110 forms.Organic thin layer 130 comprises at least one in hole injection layer (HIL), hole transport layer (HTL), emission layer, hole blocking layer (HBL), electron transport layer (ETL) and the electron injecting layer (EIL).Cathode electrode 140 also is a transparency electrode, and it forms by the metal levels such as Ca, LiF that deposition has than low work function.Passivation layer 150 uses transparent sealant to form, and makes it not only can guarantee the thin life-span that is exposed at airborne this organic light emitting apparatus, can also prevent the oxidation of cathode electrode 140 or anode electrode 120.
Herein, the bottom polarizer 170A that is arranged on down on substrate 110 outer surfaces preferably is perpendicular to one another with the polarization axle that is arranged on the top polarizer 180A on substrate 160 outer surfaces.Therefore, bottom polarizer 170A and top polarizer 180A can form with following substrate 110 and last substrate 160 integral body.
In first embodiment, the following substrate 110 that is formed with electroluminescence (EL) element 100 on it is packaged by last substrate 160, subsequently by applying polarized material layer 170A and 180A forms bottom polarizer and top polarizer on the outer surface of substrate 110 and last substrate 160 down.Thus, can make this organic light emitting apparatus.
Perhaps, bottom polarizer and top polarizer can form by coating polarized material layer 170A and 180A on the outer surface of following substrate 110 and last substrate 160, can can use substrate under the substrate package at last forming EL element 100 on the substrate 110 down subsequently.Thus, can make this organic light emitting apparatus.
Fig. 2 shows the cross section structure according to the bilateral organic light emitting apparatus of second embodiment of the invention.Similar with first embodiment, have wherein polarizer 170B and 180B according to the organic light emitting apparatus of second embodiment and be respectively formed at down structure on the outer surface of substrate 110 and last substrate 160.
Herein, bottom polarizer 170B and top polarizer 180B are combined in respectively on the outer surface of substrate 110 and 160.Each polarizer 170B and 180B are by forming in conjunction with the polarizing coating of thickness between about 50 to 300 μ m on each outer surface of following substrate 110 and last substrate 160.In the case, be combined in down the bottom polarizer 170B on substrate 110 outer surfaces and be combined in top polarizer 180B on substrate 160 outer surfaces preferably according to the mode combination that its polarization axle is perpendicular to one another.
In a second embodiment, the following substrate 110 that is formed with radiated element 100 on it is packaged by last substrate 160, subsequently by form bottom polarizer and top polarizer in conjunction with bottom polarizing coating 170B and top polarizing coating 180B on the outer surface of substrate 110 and last substrate 160 down.Thus, can make this organic light emitting apparatus.
Perhaps, bottom polarizer and top polarizer can be by forming in conjunction with bottom polarizing coating 170B and top polarizing coating 180B on the outer surface of following substrate 110 and last substrate 160, can form EL element 100 on the substrate 110 down subsequently, can use substrate 160 encapsulation substrate 100 down at last.Thus, can make this organic light emitting apparatus.
Fig. 3 shows the cross section structure according to the bilateral organic light emitting apparatus of third embodiment of the invention.Have that its middle and lower part polarizer 270A is arranged on down on the outer surface of substrate 210 and top polarizer 280A is arranged on the structure on the inner surface of substrate 260 according to the organic light emitting apparatus of the 3rd embodiment.
With reference to Fig. 3, as in first embodiment, the inner surface of following substrate 210 is provided with radiated element 200, and it comprises anode electrode 220 as bottom electrode, organic thin layer 230 and as the cathode electrode 240 of top electrode.Passivation layer 250 is formed on the cathode electrode 240.Last substrate 260 uses the sealant (not shown) to combine with following substrate 210 and with its encapsulation.
Polarizer 270A and 280A are separately positioned on down on the outer surface of substrate 210 and on the inner surface of last substrate 260.Polarizer 270A and 280A on the outer surface that is coated in down substrate 210 respectively with the inner surface of last substrate 260 on the polarized material layer.In addition, the polarized material layer is by applying and can form from the polarization solution that OPTIVA INC. obtains with the thickness from about 0.1 μ m to 50.0 μ m.
Herein, the bottom polarizer 270A that is arranged on down on substrate 210 outer surfaces preferably forms according to the mode that its polarization axle is perpendicular to one another with the top polarizer 280A that is arranged on substrate 260 inner surfaces.Therefore, the bottom polarizer 270A that is perpendicular to one another of its polarization axle and top polarizer 280A can with following substrate 210 and last substrate 260 whole formation.
In the 3rd embodiment, down forming radiated element 200 on the substrate 210, subsequently by applying polarized material layer 270A on the outer surface of substrate 210 down and on the inner surface of last substrate 260 and 280A forms bottom polarizer and top polarizer.Thus, can make this organic light emitting apparatus.
Perhaps, bottom polarizer and top polarizer are by applying polarized material layer 270A on the outer surface of following substrate 210 and on the inner surface of last substrate 260 and 280A forms, can form radiated element 200 on the substrate 210 down subsequently, can use substrate 260 encapsulation substrate 210 down at last.Thus, can make this organic light emitting apparatus.
Fig. 4 shows the cross section structure according to the bilateral organic light emitting apparatus of fourth embodiment of the invention.Similar with the 3rd embodiment, have that its middle and lower part polarizer 270B is arranged on down on the outer surface of substrate 210 and top polarizer 280B is arranged on the structure on the inner surface of substrate 260 according to the organic light emitting apparatus of the 4th embodiment.
Herein, bottom polarizer 270B and top polarizer 280B are polarizer, and polarizer 270B is combined in down on the outer surface of substrate 210 and another polarizer 280B is combined on the inner surface of substrate 260.Polarizer 270B and 280B are by in that the polarizing coating between about 50 to 300 μ m forms in conjunction with thickness on the outer surface of following substrate 210 and on the inner surface of last substrate 260.In the case, be combined in down the bottom polarizer 270B on substrate 210 outer surfaces and be combined in top polarizer 280B on substrate 260 inner surfaces preferably according to the mode combination that its polarization axle is perpendicular to one another.
In the 4th embodiment, forming radiated element 200 on the substrate 210 down, subsequently by forming bottom polarizer and top polarizer in conjunction with bottom polarizing coating 270B and top polarizing coating 280B on the outer surface of following substrate 210 and on the inner surface of last substrate 260.Thus, can make this organic light emitting apparatus.
Perhaps, bottom polarizer and top polarizer can be by forming in conjunction with bottom polarizing coating 270B and top polarizing coating 280B on the outer surface of following substrate 210 and on the inner surface of last substrate 260, can form radiated element 200 on the substrate 210 down subsequently, can use substrate 260 encapsulation substrate 210 down at last.Thus, can make this organic light emitting apparatus.
Fig. 5 shows the cross section structure according to the bilateral organic light emitting apparatus of fifth embodiment of the invention.Have that its middle and lower part polarizer 370A is arranged on down on the inner surface of substrate 310 and top polarizer 380A is arranged on the structure on the outer surface of substrate 360 according to the organic light emitting apparatus of the 5th embodiment.
With reference to Fig. 5, as in first embodiment, the inner surface of following substrate 310 is provided with radiated element 300, and it comprises anode electrode 320 as bottom electrode, organic thin layer 330 and as the cathode electrode 340 of top electrode.Passivation layer 350 is formed on the cathode electrode 340.Last substrate 360 uses the sealant (not shown) to combine with following substrate 310 and with its encapsulation.
Herein, the bottom polarizer 370A that is arranged on down on substrate 310 inner surfaces preferably forms according to the mode that its polarization axle is perpendicular to one another with the top polarizer 380A that is arranged on substrate 360 outer surfaces.Therefore, the bottom polarizer 370A that is perpendicular to one another of its polarization axle and top polarizer 380A can with following substrate 310 and last substrate 360 whole formation.
In the 5th embodiment, by applying polarized material layer formation bottom polarizer 370A and top polarizer 380A on the inner surface of following substrate 310 and on the outer surface of last substrate 360, on polarized material layer 370A, form radiated element 300 subsequently, and be provided with last substrate 360 encapsulation of polarized material layer 380A with its outer surface.Thus, can make this organic light emitting apparatus.
Fig. 6 shows the cross section structure according to the bilateral organic light emitting apparatus of sixth embodiment of the invention.Similar with the 5th embodiment, have that its middle and lower part polarizer 370B is arranged on down on the inner surface of substrate 310 and top polarizer 380B is arranged on the structure on the outer surface of substrate 360 according to the organic light emitting apparatus of the 6th embodiment.
Herein, bottom polarizer 370B and top polarizer 380B are polarizer, and polarizer 370B is combined in down on the inner surface of substrate 310 and another polarizer 380B is combined on the outer surface of substrate 360.Polarizer 370B and 380B are by forming in conjunction with the polarizing coating of thickness between about 50 to 300 μ m on the inner surface of following substrate 310 and on the outer surface of last substrate 360.In the case, be combined in down the bottom polarizer 370B on substrate 310 inner surfaces and be combined in top polarizer 380B on substrate 360 outer surfaces preferably according to the mode combination that its polarization axle is perpendicular to one another.
In the 6th embodiment, by forming bottom polarizer and top polarizer in conjunction with bottom polarizing coating 370B and top polarizing coating 380B on the inner surface of following substrate 310 and on the outer surface of last substrate 360, form radiated element 300 subsequently on the polarizing coating 370B of bottom, last above substrate 360 encapsulation are substrate 310 down.Thus, can make this organic light emitting apparatus.
Fig. 7 shows the cross section structure according to the bilateral organic light emitting apparatus of seventh embodiment of the invention.Have its middle and lower part polarizer 470A and top polarizer 480A according to the organic light emitting apparatus of the 7th embodiment and be separately positioned on down structure on the inner surface of substrate 410 and last substrate 460.
With reference to Fig. 7, as in first embodiment, the inner surface of following substrate 410 is provided with radiated element 400, and it comprises anode electrode 420 as bottom electrode, organic thin layer 430 and as the cathode electrode 440 of top electrode.Passivation layer 450 is formed on the cathode electrode 440.Last substrate 460 uses the sealant (not shown) to combine with following substrate 410 and with its encapsulation.
Herein, the bottom polarizer 470A that is arranged on down on substrate 410 inner surfaces preferably forms according to the mode that its polarization axle is perpendicular to one another with the top polarizer 480A that is arranged on substrate 460 inner surfaces.Therefore, the bottom polarizer 470A that is perpendicular to one another of its polarization axle and top polarizer 480A can with following substrate 410 and last substrate 460 whole formation.
In the 7th embodiment, form bottom polarizer 470A and top polarizer 480A by on the inner surface of following substrate 410 and last substrate 460, applying the polarized material layer, on the polarized material layer 470A of bottom, form radiated element 400 subsequently, and 460 encapsulation of above substrate.Thus, can make this organic light emitting apparatus.
Fig. 8 shows the cross section structure according to the bilateral organic light emitting apparatus of eighth embodiment of the invention.Similar with the 7th embodiment, have its middle and lower part polarizer 470B and top polarizer 480B according to the organic light emitting apparatus of the 8th embodiment and be separately positioned on down structure on the inner surface of substrate 410 and last substrate 460.
Herein, bottom polarizer 470B and top polarizer 480B are polarizer, are combined in down respectively on the inner surface of substrate 410 and last substrate 460.Polarizer 470B and 480B are by forming in conjunction with the polarizing coating of thickness between about 50 to 300 μ m on each inner surface of following substrate 410 and last substrate 460.In the case, be combined in down the bottom polarizer 470B on substrate 410 inner surfaces and be combined in top polarizer 480B on substrate 460 inner surfaces preferably according to the mode combination that its polarization axle is perpendicular to one another.
In the 8th embodiment, by on the inner surface of following substrate 410 and last substrate 460, forming bottom polarizer and top polarizer in conjunction with bottom polarizing coating 470B and top polarizing coating 480B, on the polarizer 470B of bottom, form radiated element 400 subsequently, and above substrate package.Thus, can make this organic light emitting apparatus.
Below, with reference to the principle that stops exterior light in the bilateral organic light emitting apparatus of Fig. 9 A and 9B explanation according to first embodiment of the invention.
Shown in Fig. 9 A, when covering substrate 160 unilateral observations of observer 190 substrate in conduct, the interior lights 191 that penetrates from EL layer 130 is advanced along the direction of arrow 192 through top polarizer 180A linear polarization, makes observer 190 see the light through last substrate 160.The interior lights of linear polarization is along the direction vibration identical with the polarization axle of polarizer 180A.
Simultaneously, the exterior light 195 that is incident to covering substrate 160 from observer 190 is advanced along the direction of arrow 196 through top polarizer 180A linear polarization.Through the layer structure reflection by EL element 100 of the internal transmission light of top polarizer 180A linear polarization, and reflected outside light is along different traverse line polarizations, 90 spends with intersecting through the incidence angle of the light of covering substrate 160 incidents, thus can't transmission.
In addition, for another exterior light, that is, be incident on the dielectric substrate 110 and through the transmission exterior light of its transmission, through bottom polarizer 170A linear polarization in the position incident relative with observer 190.Herein, the polarization axle of bottom polarizer 170A and top polarizer 180A is set to be perpendicular to one another, and makes that the transmission exterior light of linear polarization can't be passed through top polarizer 180A.In other words, for the transmission exterior light, when its during linear polarization, the polarization axle when its polarization axle has been incident on the dielectric substrate 110 perpendicular to it.As a result, stopped in the position relative, penetrated and can not see through top polarizer 180A by the transmission exterior light of substrate 110 down with observer 190.
Shown in Fig. 9 B, when dielectric substrate 110 unilateral observations of observer 190 substrate under conduct, the interior lights 191 that penetrates from EL layer 130 is advanced along the direction of arrow 192 through bottom polarizer 170A linear polarization, makes observer 190 see through the light of substrate 110 down.The interior lights of linear polarization is along the direction vibration identical with the polarization axle of bottom polarizer 170A.
Simultaneously, the exterior light 195 that is incident to dielectric substrate 110 from observer 190 is advanced along the direction of arrow 196 through bottom polarizer 170A linear polarization.Through the layer structure reflection by EL element 100 of the internal transmission light of bottom polarizer 170A linear polarization, and reflected outside light is along different traverse line polarizations, 90 spends with intersecting through the incidence angle of the light of insulation substrate 110 incidents, thus can't transmission.
In addition, for another exterior light, that is, be incident on the covering substrate 160 and through the transmission exterior light of its transmission, through top polarizer 180A linear polarization in the position incident relative with observer 190.Herein, the polarization axle of bottom polarizer 170A and top polarizer 180A is set to be perpendicular to one another, and makes that the transmission exterior light of linear polarization can't be passed through bottom polarizer 170A.In other words, for the transmission exterior light, when its during linear polarization, the polarization axle when its polarization axle has been incident on the covering substrate 160 perpendicular to it.As a result, stopped the transmission exterior light by covering substrate 160, penetrated and can not see through bottom polarizer 170A in the position relative with observer 190.
Herein, the reflected outside light representations be incident on the covering substrate 160 towards dielectric substrate 110 advance and through 100 reflections of internal emission element once more towards light that covering substrate 160 is advanced or be incident on the dielectric substrate 110 light of advancing and advancing towards dielectric substrate 110 once more through 100 reflections of internal emission element towards covering substrate 160.In addition, the exterior light of transmission is represented light of advancing towards dielectric substrate 110 through 160 incidents of covering substrate or the light of advancing towards covering substrate 160 through 110 incidents of insulation substrate.
As mentioned above, no matter observer 190 is at following substrate or in last substrate unilateral observation, only allow the light that penetrates from emission layer 120 by substrate 110 down or go up substrate 160, and do not allow to reflect or the exterior light of transmission by substrate 110 down or go up substrate 160, thus with its elimination.Therefore, can realize wherein preventing the dual-side emissive structure that contrast descends owing to exterior light.
Above, introduced the principle that stops exterior light in conjunction with the bilateral organic light emitting apparatus of first embodiment, but it is not limited thereto with reference to Fig. 9 A and 9B.Therefore, as in first to eight embodiment, be arranged on down for the bottom polarizer on any one in the surfaces externally and internally of substrate and the top polarizer is arranged on in the surfaces externally and internally of substrate any one, make the polarization axle of bottom polarizer perpendicular to the situation of the polarization axle of top polarizer, can realize the above-mentioned effect that stops exterior light.In addition, the exterior light principle that stops of first to eight embodiment can be applied to comprise the display unit of other radiated element according to the present invention.
Figure 10 shows the cross section structure according to the bilateral organic light emitting apparatus of ninth embodiment of the invention.
With reference to Figure 10, be formed with bottom electrode 520 on the transparent dielectric substrate 510 down such as glass substrate as anode electrode.Organic thin layer 530 and be formed on the bottom electrode 520 as the top electrode 540 of cathode electrode.Bottom electrode 520 plays anode electrode, and it forms the transparency electrode of the transparency conducting layer that comprises ITO (tin indium oxide), IZO (indium zinc oxide) etc.Organic thin layer 530 comprises at least one that choose from hole injection layer (HIL), hole transport layer (HTL), emission layer, hole blocking layer (HBL), electron transport layer (ETL) and electron injecting layer (EIL).Top electrode 540 plays cathode electrode, and it forms by the metal levels such as Ca, LiF that have than low work function.In this way, bottom electrode 520, organic thin layer 530 and top electrode 540 have constituted EL element 500.
In having the bilateral organic light emitting apparatus of above-mentioned structure, when the phase difference length of delay of each was expressed as x in bottom compensating plate 571 and the top compensating plate 581, phase difference length of delay x satisfied following equation.
λ/2 of n λ/2≤x≤(n+1), wherein n is an integer.
Thus, bilateral organic light emitting apparatus of the present invention can stop exterior light, regardless of observer's direction of observation.In addition, when the internal reflection of exterior light at radiated element 500, exterior light that can blocking reflected.Therefore, bilateral organic light emitting apparatus of the present invention has very high contrast.
Below, with reference to the principle that stops exterior light in the bilateral organic light emitting apparatus of Figure 14 A and 14B explanation according to ninth embodiment of the invention.
At first, for the situation of observer 590, see through top circular polarization element 580 from the interior lights that emission layer 530 penetrates in 560 unilateral observations of covering substrate.The exterior light 595 that is incident to covering substrate 560 from observer 590 is advanced along the direction of arrow 596 through linear polarizer 585 and compensating plate 581 circular polarization.
In this way, through of the layer structure reflection of circular polarizing disk 580 circularly polarized exterior light in top by EL element 500, and along different bearing circle polarizations.Herein, left circularly polarized light changes right-circularly polarized light into.Then, right-circularly polarized light changes linearly polarized light into by top compensating plate 581.Herein, the linearly polarized light that is changed by top compensating plate 581 90 is spent with intersecting through the incidence angle of the light of covering substrate 560 initial incidents, so can't transmission.
Simultaneously, for another exterior light in the position incident relative with observer 590, promptly, be incident on the dielectric substrate 510 and through the transmission exterior light of its transmission, if each in bottom compensating plate 571 and the top compensating plate 581 all has the phase difference retardation axis of λ/4, and if the angle of cut between the polarization axle of the phase difference retardation axis of the angle of cut between the polarization axle of the phase difference retardation axis of top compensating plate 581 and upper polarizing sheet 585 and bottom compensating plate 571 and lower polarizing sheet 575 is opposite, transmission exterior light by dielectric substrate 510 can't be transmitted through observer 590, regardless of the angle that reaches between upper polarizing sheet 585 and bottom compensating plate 571 and the top compensating plate 581 between lower polarizing sheet 575 and bottom compensating plate 571 and the top compensating plate 581.
For example, shown in Figure 14 A, when the linear polarizer 575 of the linear polarizer 585 of top circular polarizing disk 580 and bottom circular polarizing disk 570 is arranged so that its polarization axle is parallel to each other, be incident on the dielectric substrate 510 and through the transmission exterior light 596 of its transmission through constituting the linear polarizer 575 and compensating plate 571 circular polarization of bottom circular polarizing disk 570, advance towards covering substrate 560 subsequently.
In the case because the phase difference retardation axis of bottom compensating plate 571 and top compensating plate 581 is equal to each other, so the transmission exterior light along equidirectional with λ/twice of 4 phase shift (that is, phase shift λ/2), and change linearly polarized light into.For the transmission exterior light, the polarization axle after its linear polarization perpendicular to its linear polarization before the polarization axle of (that is, when it is incident on the dielectric substrate 510).As a result, stopped and passed through the transmission exterior light of dielectric substrate 510, and can not penetrate by top circular polarizing disk 580 with observer 590 relative position places.
As shown in Figure 14B, even when the linear polarizer 575 of the linear polarizer 585 of top circular polarizing disk 580 and bottom circular polarizing disk 570 is arranged so that its polarization axle is perpendicular to one another, through 560 incidents of covering substrate and through EL element 500 reflected outside light (that is, reflection exterior light) according to being blocked with principle identical shown in Figure 14 A.
In addition, be incident on dielectric substrate 510 1 sides and the exterior light (that is, the transmission exterior light) by dielectric substrate 510 through constituting the linear polarizer 575 and compensating plate 571 circular polarization of bottom circular polarizing disk 570, advance towards covering substrate 560 subsequently.In the case, because the phase difference retardation axis of bottom compensating plate 571 and top compensating plate 581 is perpendicular to one another, therefore the incident light of transmission is along the identical traverse line polarization during by dielectric substrate 510 with it, upper lines polarizer 585 on covering substrate one side is perpendicular to lower line polarizer 575, make to have stopped the transmission exterior light of passing through dielectric substrate 510, and penetrate towards observer 590 without top circular polarizing disk 580.
Herein, the reflection exterior light represent to be incident on the covering substrate 560 towards dielectric substrate 510 advance and through inner EL element 500 reflections once more towards light that covering substrate 560 is advanced or be incident on the dielectric substrate 510 light of advancing and advancing towards dielectric substrate 510 once more through inner EL element 500 reflections towards covering substrate 560.In addition, transmission exterior light is represented light of advancing towards dielectric substrate 510 through 560 incidents of covering substrate or the light of advancing towards covering substrate 560 through 510 incidents of insulation substrate.
As a result, only the light 591 that penetrates from emission layer 530 is observer's 590 findings, and has stopped the exterior light that is incident on covering substrate one side.Therefore, although penetrate light from emission layer 530 along relative both direction, the background of dielectric substrate one side is not throwed, and makes observer 590 only can discern the light that penetrates from emission layer 530.This is of value to and improves the image definition quality.
Therefore, in bilateral organic light emitting apparatus of the present invention, consideration is from the transmission exterior light of the direction incident relative with observer 590, and the retardation axis of preferred bottom compensating plate 571 and top compensating plate 581 and the angle of cut between the polarization axle of lower line polarizer 575 and upper lines polarizer 585 become at substrate and last substrate place corner respect to one another down.
Figure 11 shows the cross section structure according to the bilateral organic light emitting apparatus of tenth embodiment of the invention.
With reference to Figure 11, the bilateral organic light emitting apparatus of the tenth embodiment and the 9th embodiment's is similar, removes compensating plate.Particularly, in first embodiment, compensating plate is made of a λ/4 compensating plates, and is made of a plurality of compensate films in the tenth embodiment, and each compensate film all has the phase difference retardation axis, and plays the effect of λ/4 compensating plates.
In bilateral organic light emitting apparatus, be formed with bottom electrode 620 on the following dielectric substrate 610 according to the tenth embodiment.Organic thin layer 630 and top electrode 640 are formed on the bottom electrode 620.Covering substrate 660 uses sealant to be combined in down on the substrate 610, and with its encapsulation.Bottom circular polarizing disk 670 and top circular polarizing disk 680 are separately positioned on down on the outer surface of substrate 610 and covering substrate 660.Bottom circular polarizing disk 670 comprises lower line polarizer 675A and bottom compensating plate 671A.Bottom compensating plate 671A uses λ/4 compensating plates to form.Similarly, top circular polarizing disk 680 comprises upper lines polarizer 685A and top compensating plate 681A.Top compensating plate 681A uses a plurality of compensate films 682 to 684, makes it play λ/4 compensating plates.Herein, compensate film 682 to 684 its phase difference retardation axis are same to each other or different to each other.
Figure 12 illustrates the cross section structure according to the bilateral organic light emitting apparatus of eleventh embodiment of the invention.
With reference to Figure 12, the bilateral organic light emitting apparatus of the 11 embodiment and the 9th embodiment's is similar, removes the compensating plate 671B of bottom circular polarizing disk 670.Particularly, in the 9th embodiment, compensating plate 671B is made of a λ/4 compensate films, and in the 11 embodiment, is made of a plurality of compensate films 672 to 674, and each compensate film all has the phase difference retardation axis, and plays the effect of λ/4 compensating plates.
Figure 13 illustrates the cross section structure according to the bilateral organic light emitting apparatus of twelveth embodiment of the invention.
With reference to Figure 13, the bilateral organic light emitting apparatus of the 12 embodiment and the 9th embodiment's is similar, removes bottom circular polarizing disk 670 and top circular polarizing disk 680 compensating plate 671C and 681C separately.Particularly, in the 9th embodiment, each is made of compensating plate 671C and 681C a λ/4 compensate films, and in the 12 embodiment, be made of a plurality of compensate films 672 to 674 and 682 to 684, each compensate film all has the phase difference retardation axis, and plays the effect of λ/4 compensating plates.
In the bilateral organic light emitting apparatus according to the tenth to 12 embodiment shown in Figure 11 to 13, as the 9th embodiment, when each phase difference length of delay of bottom compensating plate 671 and top compensating plate 681 was expressed as x, each phase difference length of delay x satisfied following equation:
λ/2 of n λ/2≤x≤(n+1), wherein n is an integer.
Thus, as the 9th embodiment, transmission exterior light and reflection exterior light all can stop based on the principle shown in Figure 14 A and the 14B, make and can improve the image definition quality.
Figure 15 illustrates the cross section structure according to the bilateral organic light emitting apparatus of thriteenth embodiment of the invention.
With reference to Figure 15, the bilateral organic light emitting apparatus of the 13 embodiment and the 9th embodiment's is similar, but by only in covering substrate one side circular polarizing disk being set, it can be applied to expect that the light blocking that improves covering substrate one side is better than the situation of substrate one side down.
In bilateral organic light emitting apparatus, be formed with bottom electrode 720 on the following dielectric substrate 710 according to the 13 embodiment.Organic thin layer 730 and top electrode 740 are formed on the bottom electrode 720.Covering substrate 760 uses sealant to be combined in down on the substrate 710, and with its encapsulation.Top circular polarizing disk 780 is arranged on the outer surface of covering substrate 760, and lower line polarizer 776 is arranged on down on the outer surface of substrate 710.Circular polarizing disk 780 comprises linear polarizer 785 and compensating plate 781.Compensating plate 781 uses λ/4 compensating plates to form.
In the 13 embodiment shown in Figure 15, shown in Figure 20 A and 20B, it can realize not only stopping that only being incident on observer 790 (that is, in the covering substrate one side) exterior light of position also can stop the effect of this outside reflection of light light.
Figure 16 illustrates the cross section structure according to the bilateral organic light emitting apparatus of fourteenth embodiment of the invention.
With reference to Figure 16, the bilateral organic light emitting apparatus of the 14 embodiment and the 13 embodiment's is similar, but its difference is that by only in following substrate one side circular polarizing disk being set, the light blocking effect of substrate one side was better than the situation of covering substrate one side under it was applied to expect to improve.Bottom circular polarizing disk 770 is configured to linear polarizer 775 and compensating plate 771.Compensating plate 771 uses λ/4 compensating plates to form.Therefore, for the situation of observer 790 in following substrate 710 unilateral observations, it can obtain not only to stop that the exterior light that only is incident on down substrate 710 1 sides also can stop the effect of this outside reflection of light light.
Figure 17 illustrates the cross section structure according to the bilateral organic light emitting apparatus of fifteenth embodiment of the invention.
With reference to Figure 17, the bilateral organic light emitting apparatus of the 15 embodiment and the 13 embodiment's is similar, and the compensating plate 881B that removes top circular polarizing disk 880 is made of a plurality of compensate films 882 to 884, and each compensate film all has the phase difference retardation axis.
Figure 18 illustrates the cross section structure according to the bilateral organic light emitting apparatus of sixteenth embodiment of the invention.
With reference to Figure 18, the bilateral organic light emitting apparatus of the 16 embodiment and the 14 embodiment's is similar, and the compensating plate 871 of removing bottom circular polarizing disk 870 is configured to a plurality of compensate films 872 to 874, and each compensate film all has the phase difference retardation axis.
Figure 19 illustrates the cross section structure according to the bilateral organic light emitting apparatus of seventeenth embodiment of the invention.
With reference to Figure 19, the bilateral organic light emitting apparatus of the 17 embodiment and the 9th embodiment's is similar.Yet, for the polarizer 971 that constitutes circular polarizing disk 970 and 980 and 981 and compensating plate 975 and 985 form situation with similar film of first or second embodiment or coating, circular polarizing disk 970 and 980 is separately positioned on down on the inner surface of substrate 910 and covering substrate 960.Perhaps, the polarizer 971 that constitutes circular polarizing disk 970 and 980 and 981 and compensating plate 975 and 985 among, polarizer 971 and 981 can be separately positioned on down on the outer surface of substrate 910 and covering substrate 960, and compensating plate 975 and 985 is separately positioned on down on the inner surface of substrate 910 and covering substrate 960.
In addition, perhaps any one in lower line polarizer 971 and the upper lines polarizer 981 can be formed on down in substrate 910 and the covering substrate 960 on any one inner surface, and another polarizer can be formed on the outer surface of another substrate.In addition, bottom compensating plate and top compensating plate can be arranged between the surfaces externally and internally and emission layer of substrate.
Consideration is combined in down the bilateral organic light emitting apparatus that stops transmission exterior light and reflection exterior light on the surface of substrate and last substrate one side thus comprising the circular polarizing disk of linear polarizer and λ/4 compensating plates, introduced the 9th to 17 embodiment of the present invention.Yet this principle also is suitable for for other radiated element.In addition, can on the cathode electrode of radiated element, additionally form passivation layer.
By as seen aforementioned,,, can realize having the bilateral organic light emitting apparatus of high-contrast by on the relative both sides of bilateral organic light emitting apparatus, stopping exterior light in conjunction with polarizer according to the present invention.In addition,, be combined in glass substrate two lip-deep polarizers and not only can stop exterior light, can also play the effect of the lower and upper dielectric substrate of protection, for example antidetonation for the situation that is used for folded form bilateral display unit.
Although illustrated and introduced several embodiments of the present invention, it will be understood by those skilled in the art that and on the basis that does not break away from principle of the present invention and spirit, to change that scope of the present invention is limited by claims and equivalent thereof to this embodiment.
Claims (30)
1. double-sided light emitting device comprises:
Following substrate and last substrate;
Radiated element is formed between the inner surface of the inner surface of substrate and following substrate and the predetermined light of emission;
The top polarizer is arranged on the inner surface of substrate and in the outer surface any one;
The bottom polarizer is arranged on down on the inner surface of substrate and in the outer surface any one;
The top compensating plate is arranged between top polarizer and the radiated element; And
The bottom compensating plate is arranged between bottom polarizer and the radiated element,
Wherein, when bottom compensating plate and top compensating plate had phases opposite difference retardation axis, bottom polarizer and top polarizer had the polarization axle that is perpendicular to one another,
Wherein, when the phase difference length of delay of each compensating plate was represented by x, phase difference length of delay x satisfied following equation:
λ/2 of n λ/2≤x≤(n+1), wherein n is an integer.
2. double-sided light emitting device as claimed in claim 1, its middle and lower part polarizer is arranged on down on the outer surface of substrate, and the bottom compensating plate is arranged between the outer surface of bottom polarizer and following substrate, and
The top polarizer is arranged on the outer surface of substrate, and the top compensating plate is arranged between the outer surface of top polarizer and last substrate.
3. double-sided light emitting device as claimed in claim 1, its middle and lower part polarizer is arranged on down on the outer surface of substrate, and the bottom compensating plate is arranged between the outer surface of bottom polarizer and following substrate, and
The top polarizer is arranged on the inner surface of substrate, and the top polarizer is arranged between the inner surface of top compensating plate and last substrate.
4. double-sided light emitting device as claimed in claim 1, its middle and lower part polarizer is arranged on down on the inner surface of substrate, and the bottom polarizer is arranged between the inner surface of bottom compensating plate and following substrate, and
The top polarizer is arranged on the inner surface of substrate, and the top polarizer is arranged between the inner surface of top compensating plate and last substrate.
5. double-sided light emitting device as claimed in claim 1, its middle and lower part polarizer is arranged on down on the inner surface of substrate, and the bottom polarizer is arranged between the inner surface of bottom compensating plate and following substrate, and
The top polarizer is arranged on the outer surface of substrate, and the top compensating plate is arranged between the outer surface of top polarizer and last substrate.
6. double-sided light emitting device as claimed in claim 2, its middle and lower part compensating plate and top compensating plate comprise that at least one has the compensate film of predetermined phase difference retardation axis.
7. double-sided light emitting device comprises:
Following substrate and last substrate;
Radiated element is formed between the inner surface of the inner surface of substrate and following substrate and the predetermined light of emission;
The top polarizer is arranged on the inner surface of substrate and in the outer surface any one;
The bottom polarizer is arranged on down on the inner surface of substrate and in the outer surface any one;
The top compensating plate is arranged between top polarizer and the radiated element; And
The bottom compensating plate is arranged between bottom polarizer and the radiated element,
Wherein, when the phase difference length of delay of each compensating plate was represented by x, phase difference length of delay x satisfied following equation:
λ/2 of n λ/2≤x≤(n+1), wherein n is an integer,
Wherein be arranged on the angle of cut between the polarization axle of the phase difference retardation axis of the bottom compensating plate between bottom polarizer and the radiated element and bottom polarizer and be arranged on the phase difference retardation axis of the top compensating plate between top polarizer and the radiated element and the polarization axle of top polarizer between the angle of cut opposite.
8. double-sided light emitting device comprises:
Following substrate and last substrate;
Radiated element is formed between the inner surface of the inner surface of substrate and following substrate and the predetermined light of emission;
The top polarizer is arranged on the inner surface of substrate and in the outer surface any one;
The bottom polarizer is arranged on down on the inner surface of substrate and in the outer surface any one; And
Compensating plate is arranged between top polarizer and the radiated element and at least one place between bottom polarizer and the radiated element,
Wherein, radiated element is luminous towards following substrate and last substrate,
Wherein compensating plate comprises:
The top compensating plate is arranged between top polarizer and the radiated element; And
The bottom compensating plate is arranged between bottom polarizer and the radiated element,
Wherein, when bottom compensating plate and top compensating plate had phases opposite difference retardation axis, bottom polarizer and top polarizer had the polarization axle that is perpendicular to one another.
9. double-sided light emitting device as claimed in claim 8, the top compensating plate and the phase difference sum between the polarizer of top that wherein are arranged on bottom compensating plate and the phase difference between the polarizer of bottom between bottom polarizer and the radiated element and are arranged between top polarizer and the radiated element are n λ/2, and wherein n is the integer except that zero (0).
10. double-sided light emitting device as claimed in claim 8, wherein when the phase difference length of delay of each compensating plate was represented by x, phase difference length of delay x satisfied following equation:
λ/2 of n λ/2≤x≤(n+1), wherein n is an integer.
11. double-sided light emitting device as claimed in claim 8, wherein compensating plate comprises at least one compensate film.
12. double-sided light emitting device as claimed in claim 11, wherein compensating plate comprises that one has the compensate film of same delay axle.
13. double-sided light emitting device as claimed in claim 11, wherein compensating plate comprises a plurality of compensate films with different phase difference retardation axis.
14. double-sided light emitting device as claimed in claim 8, its middle and upper part polarizer is arranged on the inner surface of substrate, and the top polarizer is arranged between the inner surface of top compensating plate and last substrate.
15. double-sided light emitting device as claimed in claim 8, its middle and upper part polarizer is arranged on the outer surface of substrate, and the top compensating plate is arranged between the outer surface of top polarizer and last substrate.
16. double-sided light emitting device as claimed in claim 8, its middle and upper part compensating plate comprises that at least one has the compensate film of predetermined phase difference retardation axis.
17. double-sided light emitting device as claimed in claim 8, its middle and lower part polarizer is arranged on down on the outer surface of substrate, and the bottom compensating plate is arranged between the outer surface of bottom polarizer and following substrate.
18. double-sided light emitting device as claimed in claim 8, its middle and lower part polarizer is arranged on down on the inner surface of substrate, and the bottom polarizer is arranged between the inner surface of bottom compensating plate and following substrate.
19. double-sided light emitting device as claimed in claim 8, its middle and lower part compensating plate comprises that at least one has the compensate film of predetermined phase difference retardation axis.
20. double-sided light emitting device as claimed in claim 8, its middle and lower part polarizer is arranged on down on the outer surface of substrate, and the bottom compensating plate is arranged between the outer surface of bottom polarizer and following substrate, and
The top polarizer is arranged on the outer surface of substrate, and the top compensating plate is arranged between the outer surface of top polarizer and last substrate.
21. double-sided light emitting device as claimed in claim 8, its middle and lower part polarizer is arranged on down on the outer surface of substrate, and the bottom compensating plate is arranged between the outer surface of bottom polarizer and following substrate, and
The top polarizer is arranged on the inner surface of substrate, and the top polarizer is arranged between the inner surface of top compensating plate and last substrate.
22. double-sided light emitting device as claimed in claim 8, its middle and lower part polarizer is arranged on down on the inner surface of substrate, and the bottom polarizer is arranged between the inner surface of bottom compensating plate and following substrate, and
The top polarizer is arranged on the inner surface of substrate, and the top polarizer is arranged between the inner surface of top compensating plate and last substrate.
23. double-sided light emitting device as claimed in claim 8, its middle and lower part polarizer is arranged on down on the inner surface of substrate, and the bottom polarizer is arranged between the inner surface of bottom compensating plate and following substrate, and
The top polarizer is arranged on the outer surface of substrate, and the top compensating plate is arranged between the outer surface of top polarizer and last substrate.
24. double-sided light emitting device as claimed in claim 8, each in its middle and lower part compensating plate and the top compensating plate comprises that all at least one has the compensate film of predetermined phase difference retardation axis.
25. double-sided light emitting device as claimed in claim 24, wherein when each the phase difference length of delay in bottom compensating plate and the top compensating plate was all represented by x, phase difference length of delay x satisfied following equation:
λ/2 of n λ/2≤x≤n+1), wherein n is an integer.
26. a double-sided light emitting device comprises:
Following substrate and last substrate;
Radiated element is formed between the inner surface of the inner surface of substrate and following substrate and the predetermined light of emission;
The top polarizer is arranged on the inner surface of substrate and in the outer surface any one;
The bottom polarizer is arranged on down on the inner surface of substrate and in the outer surface any one; And
Compensating plate is arranged between top polarizer and the radiated element and at least one place between bottom polarizer and the radiated element,
Wherein, radiated element is luminous towards following substrate and last substrate,
The top compensating plate that wherein is arranged on bottom compensating plate and the corner between the polarizer of bottom between bottom polarizer and the radiated element and is arranged between top polarizer and the radiated element is opposite with the corner between the polarizer of top.
27. a double-sided light emitting device comprises:
Following substrate and last substrate;
Radiated element is formed between the inner surface of the inner surface of substrate and following substrate and the predetermined light of emission;
The top polarizer is arranged on the inner surface of substrate or in the outer surface any one;
The bottom polarizer is arranged on down on the inner surface of substrate or in the outer surface any one;
The top compensating plate is arranged between top polarizer and the radiated element; And
The bottom compensating plate is arranged between bottom polarizer and the radiated element,
Wherein, in the position of observing the light that penetrates from radiated element, the light that transmission is penetrated by radiated element, and stop that all are incident on the exterior light of observation place and the position relative with the observation place, and stop the exterior light of radiated element internal reflection,
Wherein, when bottom compensating plate and top compensating plate had phases opposite difference retardation axis, bottom polarizer and top polarizer had the polarization axle that is perpendicular to one another.
28. double-sided light emitting device as claimed in claim 27, its middle and lower part polarizer is arranged on down on the outer surface of substrate, and the bottom compensating plate is arranged between the outer surface of bottom polarizer and following substrate, and
The top polarizer is arranged on the outer surface of substrate, and the top compensating plate is arranged between the outer surface of top polarizer and last substrate.
29. double-sided light emitting device as claimed in claim 27, its middle and lower part polarizer is arranged on down on the inner surface of substrate, and the bottom polarizer is arranged between the inner surface of bottom compensating plate and following substrate, and
The top polarizer is arranged on the inner surface of substrate, and the top polarizer is arranged between the inner surface of top compensating plate and last substrate.
30. double-sided light emitting device as claimed in claim 28, its middle and lower part compensating plate and top compensating plate comprise that at least one has the compensate film of predetermined phase difference retardation axis.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0034179A KR100527188B1 (en) | 2003-05-28 | 2003-05-28 | Organic Electro Luminescence Display |
| KR34179/03 | 2003-05-28 | ||
| KR1020030086116A KR100560791B1 (en) | 2003-11-29 | 2003-11-29 | Double-faced Display Device |
| KR86116/03 | 2003-11-29 |
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| CNB2004100457988A Division CN100514666C (en) | 2003-05-28 | 2004-05-27 | Double-sided light emitting device |
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| CN101562235A CN101562235A (en) | 2009-10-21 |
| CN101562235B true CN101562235B (en) | 2011-11-30 |
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| KR100795811B1 (en) * | 2006-10-24 | 2008-01-21 | 삼성에스디아이 주식회사 | Polarizer and organic light emitting display apparatus comprising the same |
| KR101084188B1 (en) | 2010-01-21 | 2011-11-17 | 삼성모바일디스플레이주식회사 | Double-sided light emitting display device |
| KR20160060214A (en) | 2014-11-19 | 2016-05-30 | 삼성디스플레이 주식회사 | Organic light emitting apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5831375A (en) * | 1995-08-11 | 1998-11-03 | Minnesota Mining And Manufacturing Company | Electroluminescent lamp using multilayer optical film |
| CN1492719A (en) * | 2002-08-30 | 2004-04-28 | Self luminous display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5831375A (en) * | 1995-08-11 | 1998-11-03 | Minnesota Mining And Manufacturing Company | Electroluminescent lamp using multilayer optical film |
| CN1492719A (en) * | 2002-08-30 | 2004-04-28 | Self luminous display device |
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| CN101562235A (en) | 2009-10-21 |
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| KR100527188B1 (en) | 2005-11-08 |
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Owner name: SAMSUNG DISPLAY CO., LTD. Free format text: FORMER OWNER: SAMSUNG MOBILE DISPLAY CO., LTD. Effective date: 20121017 |
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