US20150250032A1 - Organic light emitting display apparatus and method of manufacturing the same - Google Patents
Organic light emitting display apparatus and method of manufacturing the same Download PDFInfo
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- US20150250032A1 US20150250032A1 US14/714,008 US201514714008A US2015250032A1 US 20150250032 A1 US20150250032 A1 US 20150250032A1 US 201514714008 A US201514714008 A US 201514714008A US 2015250032 A1 US2015250032 A1 US 2015250032A1
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/02—Details
- H05B33/04—Sealing arrangements, e.g. against humidity
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/10—Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
-
- 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
- H10K50/84—Passivation; Containers; Encapsulations
-
- 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
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/842—Containers
- H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
-
- 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
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/846—Passivation; Containers; Encapsulations comprising getter material or desiccants
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/871—Self-supporting sealing arrangements
- H10K59/8722—Peripheral sealing arrangements, e.g. adhesives, sealants
Abstract
An organic light emitting display apparatus includes a first substrate, an organic light emitting element, a second substrate and a sealing complex. The first substrate includes a display region and at least one peripheral region. The at least one peripheral region surrounds the display region. The organic light emitting element is disposed in the display region. The second substrate corresponds to the first substrate. The sealing complex includes a first seal and a second seal. The first seal is disposed between the at least one peripheral region of the first substrate and the second substrate. The first seal surrounds the display region. The second seal is spaced apart from the first seal by a hydrophobically treated surface. The second seal surrounds the first seal.
Description
- Any and all applications for which a foreign or domestic priority claim is identified in the Application Data Sheet as filed with the present application are hereby incorporated by reference under 37 CFR 1.57.
- This application is a divisional of U.S. application Ser. No. 14/014,038 filed Aug. 29, 2013, which claims priority under 35 U.S.C. §119 to Korean Patent Application No. 10-2013-0047195 filed on Apr. 29, 2013, the disclosure of which is hereby incorporated by reference herein in its entirety.
- 1. Field
- This disclosure relates to an organic light emitting display apparatus having a complex combining structure of organic and inorganic materials and a method of manufacturing the organic light emitting display apparatus.
- 2. Description of the Related Technology
- An organic light emitting device has its own emission characteristics, and typically does not require a light source as does a liquid crystal display (LCD) device. Thus, the organic light emitting device can have reduced thickness and weight. In addition, the organic light emitting device includes high-quality features such as low power consumption, high-luminance and high reaction rate.
- In general, the organic light-emitting display device includes a substrate, an organic light emitting diode and sealant and other components. When water and oxygen from an outer environment flow into the device, the organic light-emitting display device experiences problems such as oxidation of the electrode materials, decrease of the life of the device, decrease of the luminous efficiency and deterioration of luminous color.
- In manufacturing of the organic light-emitting display device, to protect the device from the water or oxygen of an outer environment, a sealing process is generally performed. For example, to protect the organic light emitting diode, the organic light-emitting display device is sealed by the substrate and the sealant.
- But, because of pollution of the sealant, the protective feature of sealing is reduced.
- Example embodiments provide an organic light emitting display apparatus having a sealing complex having improved sealing characteristics.
- Example embodiments provide a method of manufacturing the above-mentioned organic light emitting display apparatus.
- According to one aspect of example embodiments, an organic light emitting display apparatus includes a first substrate, an organic light emitting element, a second substrate and a sealing complex. The first substrate includes a display region and at least one peripheral region. The at least one peripheral region surrounds the display region. The organic light emitting element is disposed in the display region of the first substrate. The second substrate corresponds to the first substrate. The sealing complex includes a first seal and a second seal. The first seal is disposed in the at least one peripheral region. The first seal surrounds the display region. The second seal is spaced apart from the first seal by a hydrophobic treated surface. The second seal surrounds the first seal.
- In example embodiments, the hydrophobic treated surface may include a surface between the first and second seals and an upper surface of the first substrate.
- In example embodiments, the hydrophobic treated surface may further include a lower surface of the second substrate.
- In example embodiments, the first seal may include an organic material.
- In example embodiments, the second seal may include an inorganic material.
- In example embodiments, the hydrophobic treated surface may be formed by a low temperature plasma treatment.
- In example embodiments, the sealing complex may further include a hydrophilic treated surface.
- In example embodiments, the hydrophilic treated surface may include an upper and a lower surface of the first seal.
- In example embodiments, the hydrophilic treated surface may be formed by an oxygen plasma treatment.
- According to another aspect of example embodiments, an organic light emitting display apparatus includes a first substrate, an organic light display element, a second substrate and a sealing complex. The first substrate includes a display region and at least one peripheral region. The at least one peripheral display region surrounds the display region. The organic light display element is disposed in the display region of the first substrate. The second substrate corresponds to the first substrate. The sealing complex includes a first seal, a second seal and a third seal. The first seal is disposed in the at least one peripheral region. The second seal surrounds the first seal. The second seal is spaced apart from the first seal. The third seal is disposed between the first seal and the second seal.
- In example embodiments, the first seal may include an organic material.
- In example embodiments, the second seal may include an inorganic material.
- In example embodiments, the third seal may include a highpolymer.
- According to another aspect of example embodiments, a method of manufacturing an organic light emitting display apparatus is provided as follows. An organic light emitting element is formed in a display region of a first substrate. The first substrate has the display region and at least one peripheral region. The at least one peripheral region surrounds the display region. A first seal is formed in the at least one peripheral region of the first substrate. A second seal is formed in the at least one peripheral region. The second seal is spaced apart from the first seal. The at least one peripheral region is treated hydrophobically. A lower surface of a second substrate is treated hydrophobically. The hydrophobically treated first substrate is combined with the hydrophobically treated second substrate using the first seal and the second seal.
- According to another aspect of example embodiments, a method of manufacturing an organic light emitting display apparatus is provided as follows. An organic light emitting element in is formed in a display region of a first substrate. The first substrate has the display region and at least one peripheral region. The at least one peripheral region surrounds the display region. The at least one peripheral region is treated hydrophilically. A first seal is formed in the at least one peripheral region. A second seal is formed in the at least one peripheral region. The second seal is spaced apart from the first seal. The at least one peripheral region of the first substrate is treated hydrophobically. A lower surface of a second substrate is treated hydrophilically. The hydrophobically treated first substrate is combined with the hydrophillically treated second substrate using the first seal and the second seal.
- According to the organic light emitting display apparatus and the method of manufacturing the organic light emitting display apparatus, the organic light emitting display apparatus includes the sealing complex so that pollution caused by the contact of the first and second seals may be prevented.
- Example embodiments can be understood in more detail from the following description taken in conjunction with the accompanying drawings, in which:
-
FIG. 1 is a cross-sectional view illustrating an organic light emitting display apparatus in accordance with one example embodiment of the present invention; -
FIGS. 2A to 2F are cross-sectional views illustrating a method of manufacturing the organic light emitting display apparatus ofFIG. 1 ; -
FIG. 3 is a cross-sectional view illustrating an organic light emitting display apparatus in accordance with another example embodiment of the present invention; -
FIGS. 4A to 4G are cross-sectional views illustrating a method of manufacturing the organic light emitting display apparatus ofFIG. 3 ; and -
FIG. 5 is a cross-sectional view illustrating an organic light emitting display apparatus in accordance with still another example embodiment of the present invention. - The example embodiments are described more fully hereinafter with reference to the accompanying drawings. The inventive concept may, however, be embodied in many different forms and should not be construed as limited to the example embodiments set forth herein. In the drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity.
- It will be understood that when an element or layer is referred to as being “on,” “connected to” or “coupled to” another element or layer, it can be directly on, connected or coupled to the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,” “directly connected to” or “directly coupled to” another element or layer, there are no intervening elements or layers present. Like or similar reference numerals generally refer to like or similar elements throughout. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.
- It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers, patterns and/or sections, these elements, components, regions, layers, patterns and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer pattern or section from another region, layer, pattern or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of example embodiments.
- Spatially relative terms, such as “beneath,” “below,” “lower,” “above,” “upper” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the example term “below” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
- The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a,” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof
- Example embodiments are described herein with reference to cross sectional illustrations that are schematic illustrations of illustratively idealized example embodiments (and intermediate structures) of the inventive concept. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, example embodiments should not be construed as limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. The regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of the inventive concept.
- Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this inventive concept belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
-
FIG. 1 is a cross-sectional view illustrating an organic light emitting display apparatus in accordance with one example embodiment of the present invention. - Referring to
FIG. 1 , the organic light emittingdisplay apparatus 100 includes afirst substrate 110, an organiclight emitting element 120, asecond substrate 130 and a sealing complex 200. - The
first substrate 110 may include a transparent insulating substrate. For example, thefirst substrate 110 may include a glass substrate, a quartz substrate, a polymer resin substrate, or the like. In one embodiment, thefirst substrate 110 may include a low temperature poly-silicon (LTPS) glass. - The
second substrate 130 is disposed by corresponding to thefirst substrate 110. Thesecond substrate 130 may include a transparent insulating material. Thesecond substrate 130 may include a glass substrate, a quartz substrate, a polymer resin substrate, or the like. In one embodiment, thesecond substrate 130 may include an encapsulation glass. - Referring again to
FIG. 1 , thefirst substrate 110 may include a display region I and one or more peripheral regions II. - The organic
light emitting element 120 is disposed in the display region I of thefirst substrate 110. The organiclight emitting element 120 generates a light using a driving signal from a driving circuit (not shown). An image is provided by generating the light in the organiclight emitting element 120 in the display region I of the organic light emittingdisplay apparatus 100. - The display region I is disposed in the center of the
first substrate 110 and the peripheral regions II are disposed in both side portions of thefirst substrate 110 and may surround the display region I. - The sealing complex 200 is disposed in the peripheral region II of the
first substrate 110 and is combined with thesecond substrate 130. The organiclight emitting element 120 is physically isolated from the external environment by the sealing complex 200 and thesecond substrate 130. For example, thesecond substrate 130 is sealed with thefirst substrate 110 through the sealingcomplex 200. Accordingly, the organiclight emitting element 120, which is disposed in thefirst substrate 110, may be protected from external water, air, and other contaminants. - In one embodiment, the sealing complex 200 may include a
first seal 150, asecond seal 190 and a hydrophobic treatedsurface 170. In this case, thefirst substrate 110 and thesecond substrate 130 are bonded by thefirst seal 150 and thesecond seal 190. - The
first seal 150 of the sealing complex 200 is disposed in the peripheral region II of thefirst substrate 110 and may surround the display region I. For example, thefirst seal 150 is disposed along the boundary of the display region I and the peripheral region II. In one embodiment, thefirst seal 150 may include an organic material and is disposed in the inside of the peripheral region II. For example, thefirst seal 150 may include a sealant. - As the
first seal 150 combines with thesecond substrate 130, the organiclight emitting element 120 of thefirst substrate 110 is physically isolated from the external environment. In addition, an adhesiveness of thefirst substrate 110 and thesecond substrate 130 is improved. In one embodiment, thefirst seal 150 may include an organic material having elasticity such as polymide, which is a highpolymer compound. Accordingly, it may prevent separation of the sealing complex 200 from thefirst substrate 110 or thesecond substrate 130 in response to an external impact. - In another embodiment, the
first seal 150 may further include an ultraviolet (UV) curable material. For example, thefirst seal 150 may include a compound such as the organic material and the ultraviolet curable material and may be hardened by irradiating an ultraviolet, a laser beam, visible ray, or the like. For example, the ultraviolet curable material may include epoxy Acrylate, polyester Acrylate, urethane Acrylate, polybutadine Acrylate, silicon Acrylate, alkyl Acrylate, and the like. - The
second seal 190 of the sealing complex 200 is disposed in the peripheral region II of thefirst substrate 110, and surrounds the display region I. For example, thesecond seal 190 is disposed along an outside of thefirst seal 150. In one embodiment, thefirst seal 150 is spaced apart from thesecond seal 190. - In one embodiment, the
second seal 190 includes an inorganic material. For example, thesecond seal 190 may include a frit and may be disposed in the outside of the peripheral region II. - In another embodiment, the
second seal 190 may further include an ultraviolet (UV) curable material. For example, thesecond seal 190 may include a compound such as the organic material and the ultraviolet curable material and may be hardened by irradiating an ultraviolet, a laser beam, visible ray, or the like. For example, the ultraviolet curable material may include epoxy Acrylate, polyester Acrylate, urethane Acrylate, polybutadine Acrylate, silicon Acrylate, alkyl Acrylate, and the like. - As the
second seal 190 combines with thesecond substrate 130, the organiclight emitting element 120 of thefirst substrate 110 is physically isolated from the external environment. In addition, thefirst substrate 110 and thesecond substrate 130 can be bonded. - The hydrophobic treated
surface 170 is a hydrophobic treated region. In one embodiment, a low temperature plasma treatment may be performed by using a gas of fluorocarbon (CF4), or the like between thefirst seal 150 and thesecond seal 190. For example, the hydrophobic treated region may include in the peripheral region II, a surface of corresponding to thefirst seal 150 andsecond seal 190, an upper surface of thefirst seal 150, thesecond seal 190 and thefirst substrate 110. As hydrophobic treatedsurface 170 is processed by the hydrophobic treatment, thefirst seal 150 and thesecond seal 190 are not contacted. -
FIGS. 2A to 2F are cross-sectional views illustrating a method of manufacturing the organic light emitting display apparatus ofFIG. 1 . - Referring to
FIG. 2A , an organiclight emitting element 120 is formed in a display region I of afirst substrate 110. - Referring to
FIG. 2B , afirst seal 150 is formed on the inside of a peripheral region II of thefirst substrate 110 forming the organiclight emitting element 120. - Referring to
FIG. 2C , asecond seal 190 is formed on the outside of the peripheral region II of thefirst substrate 110 forming the organiclight emitting element 120 and thefirst seal 150. - Referring to
FIG. 2D , hydrophobic treatedsurface 170 forming between thefirst seal 150 and asecond seal 190 is performed by a hydrophobic treatment. For example, a low temperature plasma treatment may be performed by using a gas of fluorocarbon (CF4) between thefirst seal 150 and thesecond seal 190. In one embodiment, the hydrophobic treatment may include in the peripheral region II, a surface of corresponding to thefirst seal 150 andsecond seal 190, an upper surface of thefirst seal 150, thesecond seal 190 and thefirst substrate 110. - Referring to
FIG. 2E , the peripheral region II of thesecond substrate 130 is processed by the hydrophobic treatment. - Referring to
FIG. 2F , after completing the hydrophobic treatment, thefirst substrate 110 is combined with a sealing complex 200. For example, thesecond substrate 130 may compress into thefirst substrate 110. - In another example embodiment, the sealing complex 200 is formed on the
second substrate 130 and may be combined with thefirst substrate 110. In the manufacturing process of the organic light emittingdisplay apparatus 100 of such embodiments, the sealing complex 200 is formed on thesecond substrate 130. - Accordingly, as the organic light emitting
display apparatus 100 has the hydrophobic treated region, thefirst seal 150 and thesecond seal 190 are not contacted. Before the sealing compression process, the organic light emittingdisplay apparatus 100 may prevent pollution from the outer environment contacting thefirst seal 150 and thesecond seal 190. -
FIG. 3 is a cross-sectional view illustrating an organic light emitting display apparatus in accordance with another example embodiment of the present invention. - Referring to
FIG. 3 , the organic light emittingdisplay apparatus 100 includes afirst substrate 110, an organiclight emitting element 120, asecond substrate 130 and a sealing complex 300. - The
first substrate 110 may include a transparent insulating substrate. For example, thefirst substrate 110 may include a glass substrate, a quartz substrate, a polymer resin substrate, or the like. In one embodiment, thefirst substrate 110 may include a low temperature poly-silicon (LTPS) glass. - The
second substrate 130 is disposed by corresponding to thefirst substrate 110. Thesecond substrate 130 may include a transparent insulating material. Thesecond substrate 130 may include a glass substrate, a quartz substrate, a polymer resin substrate, or the like. In one embodiment, thesecond substrate 130 may include an encapsulation glass. - Referring again to
FIG. 3 , thefirst substrate 110 may include a display region I and a peripheral region II. - The organic
light emitting element 120 is disposed in the display region I of thefirst substrate 110. The organiclight emitting element 120 generates a light using a driving signal from a driving circuit (not shown). An image is provided by generating the light in the organiclight emitting element 120 in the display region I of the organic light emittingdisplay apparatus 100. - The display region I is disposed in the center of the
first substrate 110 and the peripheral region II is disposed in both side portions of thefirst substrate 110 and may surround the display region I. - The sealing complex 300 is disposed in the peripheral region II of the
first substrate 110 and is combined with thesecond substrate 130. The organiclight emitting element 120 is physically isolated from the external environment by the sealing complex 300 and thesecond substrate 130. For example, thesecond substrate 130 is sealed with thefirst substrate 110 through the sealingcomplex 300. Accordingly, the organiclight emitting element 120, which is disposed in thefirst substrate 110, may be protected from external water, air, and other pollutants on the external environment. - In one embodiment, the sealing complex 300 may include a
first seal 150, asecond seal 190, a hydrophobic treatedsurface 170 and a hydrophilic treatedsurface 210. In this case, thefirst substrate 110 and thesecond substrate 130 are bonded by thefirst seal 150 and thesecond seal 190. - The
first seal 150 of the sealing complex 300 is disposed in the peripheral region II of thefirst substrate 110 and may surround the display region I. For example, thefirst seal 150 is disposed along the boundary of the display region I and the peripheral region II. In one embodiment, thefirst seal 150 may include an organic material and may be disposed in the inside of the peripheral region II. For example, thefirst seal 150 may include a sealant. - As the
first seal 150 combines with thesecond substrate 130, the organiclight emitting element 120 of thefirst substrate 110 is physically isolated from the external environment. In addition, an adhesiveness of thefirst substrate 110 and thesecond substrate 130 is improved. In one embodiment, thefirst seal 150 may include an organic material having elasticity such as polymide, which is a highpolymer compound. Accordingly, it may prevent the sealing complex 200 and thefirst substrate 110 orsecond substrate 130 from being separated by external impact. - In another example embodiment, the
first seal 150 may further include an ultraviolet (UV) curable material. For example, thefirst seal 150 may include a compound such as the organic material and the ultraviolet curable material and may be hardened by irradiating an ultraviolet, a laser beam, visible ray, or the like. For example, the ultraviolet curable material may include epoxy Acrylate, polyester Acrylate, urethane Acrylate, polybutadine Acrylate, silicon Acrylate, alkyl Acrylate, and the like. - The
second seal 190 of the sealing complex 300 is disposed in the peripheral region II of thefirst substrate 110, and surrounds the display region I. For example, thesecond seal 190 is disposed along an outside of thefirst seal 150. In one embodiment, thefirst seal 150 is spaced apart from thesecond seal 190. - In one embodiment, the
second seal 190 includes an inorganic material. For example, thesecond seal 190 may include a frit and may be disposed in the outside of the peripheral region II. - In another example embodiment, the
second seal 190 may further include an ultraviolet (UV) curable material. For example, thesecond seal 190 may include a compound such as the organic material and the ultraviolet curable material and may be hardened by irradiating an ultraviolet, a laser beam, visible ray, or the like. For example, the ultraviolet curable material may include epoxy Acrylate, polyester Acrylate, urethane Acrylate, polybutadine Acrylate, silicon Acrylate, alkyl Acrylate, and the like. - As the
second seal 190 combines with thesecond substrate 130, the organiclight emitting element 120 of thefirst substrate 110 is physically isolated from the external environment. In addition, thefirst substrate 110 and thesecond substrate 130 can be bonded. - The hydrophobic treated
surface 170 is a hydrophobic treated region. In one embodiment, a low temperature plasma treatment may be performed by using a gas of fluorocarbon (CF4), or the like between thefirst seal 150 and thesecond seal 190. For example, the hydrophobic treated region may include in the peripheral region II, a surface of corresponding to thefirst seal 150 andsecond seal 190, an upper surface of thefirst seal 150, thesecond seal 190 and thefirst substrate 110. As hydrophobic treatedsurface 170 is processed by a hydrophobic treatment, thefirst seal 150 and thesecond seal 190 are not contacted. - The hydrophilic treated
surface 210 is a hydrophilic treated region. In one embodiment, an oxygen plasma treatment may be performed between an upper surface of thefirst seal 150 and thefirst substrate 110, and between a lower surface of thefirst seal 150 and thesecond substrate 130. For example, the hydrophilic treated region may include a contact surface of the upper surface of thefirst seal 150 and thefirst substrate 110, and a contact surface of the lower surface of thefirst seal 150 and thesecond substrate 130. As hydrophilic treatedsurface 210 is processed by the hydrophobic treatment, an adhesiveness of thefirst substrate 110 and thesecond substrate 130 may be improved and a shock by a vibration of thefirst substrate 110 and thesecond substrate 130 may be absorbed. In addition, as the hydrophilic treatedsurface 210 prevents moisture and oxygen from entering into the organiclight emitting element 120, problems such as reduction of lifetime of the organiclight emitting element 120 by pollution, reduction of efficiency of luminescence and change of color of luminescence, among others, may be prevented. -
FIGS. 4A to 4G are cross-sectional views illustrating a method of manufacturing the organic light emitting display apparatus ofFIG. 3 . - Referring to
FIG. 4A , an organiclight emitting element 120 is formed in a display region I of afirst substrate 110. - Referring to
FIG. 4B , a peripheral region II of thefirst substrate 110 is processed by using hydrophilic treatment. For example, an oxygen plasma treatment may be performed - Referring to
FIG. 4C , afirst seal 150 is formed on the inside surface of a peripheral region II of thefirst substrate 110 forming the organiclight emitting element 120. - Referring to
FIG. 4D , asecond seal 190 is formed on the outside of the peripheral region II of thefirst substrate 110 forming the organiclight emitting element 120 and thefirst seal 150. - Referring to
FIG. 4E , hydrophobic treatedsurface 170 formed between thefirst seal 150 and thesecond seal 190 is processed by a hydrophobic treatment. For example, a low temperature plasma treatment may be performed by using a gas of fluorocarbon (CF4) between thefirst seal 150 and thesecond seal 190. In one embodiment, the hydrophobic treatment may include in the peripheral region II, a surface corresponding to thefirst seal 150 andsecond seal 190, an upper surface of thefirst seal 150, thesecond seal 190 and thefirst substrate 110. - Referring to
FIG. 4F , the peripheral region II of thesecond substrate 130 is processed by the hydrophilic treatment. - Referring to
FIG. 4G , after completing the hydrophobic treatment, thefirst substrate 110 is combined with a sealing complex 300. For example, thesecond substrate 130 may compress into thefirst substrate 110. In one embodiment, a surface of thesecond substrate 130 cannot be processed by the hydrophobic treatment. In another example embodiment, the method may further include a step of the hydrophobic treatment in the lower surface of thesecond substrate 130. - In another example embodiment, the sealing complex 300 is formed on the
second substrate 130 and is combined with thefirst substrate 110. In the manufacturing process of the organiclight emitting element 120, the sealing complex 300 is formed on thesecond substrate 130. - Accordingly, as the organic light emitting
display apparatus 100 has the hydrophobic treated region and the hydrophilic treated region, thefirst seal 150 and thesecond seal 190 are not contacted. Such an may prevent external materials from entering into the display region I including the organiclight emitting element 120. Thus, before a sealing compression process, the organic light emittingdisplay apparatus 100 may prevent pollution from contacting thefirst seal 150 and thesecond seal 190. -
FIG. 5 is a cross-sectional view illustrating an organic light emitting display apparatus in accordance with still another example embodiment of the present invention. - Referring to
FIG. 5 , the organic light emittingdisplay apparatus 100 includes afirst substrate 110, an organiclight emitting element 120, asecond substrate 130 and a sealing complex 400. - The
first substrate 110 may include a transparent insulating substrate. For example, thefirst substrate 110 may include a glass substrate, a quartz substrate, a polymer resin substrate, or the like. In one embodiment, thefirst substrate 110 may include a low temperature poly-silicon (LTPS) glass. - The
second substrate 130 is disposed by corresponding to thefirst substrate 110. Thesecond substrate 130 may include a transparent insulating material. Thesecond substrate 130 may include a glass substrate, a quartz substrate, a polymer resin substrate, or the like. In one embodiment, thesecond substrate 130 may include an encapsulation glass. - Referring again to
FIG. 5 , thefirst substrate 110 may include a display region I and a peripheral region II. - The organic
light emitting element 120 is disposed in the display region I of thefirst substrate 110. The organiclight emitting element 120 generates a light using a driving signal from a driving circuit (not shown). An image is provided by generating the light in the organiclight emitting element 120 in the display region I of the organic light emittingdisplay apparatus 100. - The display region I is disposed in the center of the
first substrate 110, and the peripheral regions II are disposed in both side portions of thefirst substrate 110, and may surround the display region I. - The sealing complex 400 is disposed in the peripheral region II of the
first substrate 110 and is combined with thesecond substrate 130. The organiclight emitting element 120 is physically isolated from the external environment by the sealing complex 400 and thesecond substrate 130. For example, thesecond substrate 130 is sealed with thefirst substrate 110 through the sealingcomplex 400. Accordingly, the organiclight emitting element 120, which is disposed in thefirst substrate 110, may be protected from external water, air, and other pollutants. - In one embodiment, the sealing complex 400 may include a
first seal 150, asecond seal 190 and athird seal 310. In this case, thefirst substrate 110 and thesecond substrate 130 are bonded by thefirst seal 150, thesecond seal 190 and thethird seal 310. - The
first seal 150 of the sealing complex 400 is disposed in the peripheral region II of thefirst substrate 110 and surrounds the display region I. For example, thefirst seal 150 is disposed along the boundary of the display region I and the peripheral region II. In one embodiment, thefirst seal 150 is spaced apart from the boundary of the display region I and the peripheral region II. - In one embodiment, the
first seal 150 may include an organic material and may be disposed on the inside of the peripheral region II. For example, thefirst seal 150 may include a sealant. - As the
first seal 150 combines with thesecond substrate 130, the organiclight emitting element 120 of thefirst substrate 110 is physically isolated from the external environment. In addition, adhesiveness of thefirst substrate 110 and thesecond substrate 130 is improved. In one embodiment, thefirst seal 150 may include an organic material having elasticity such as polymide, which is a highpolymer compound. Accordingly, the sealing complex 400 and thefirst substrate 110 orsecond substrate 130 are prevented from being separated by external impact. - In another example embodiment, the
first seal 150 may further include an ultraviolet (UV) curable material. For example, thefirst seal 150 may include a compound such as the organic material and the ultraviolet curable material and may be hardened by irradiating an ultraviolet, a laser beam, visible ray, or the like. For example, the ultraviolet curable material may include epoxy Acrylate, polyester Acrylate, urethane Acrylate, polybutadine Acrylate, silicon Acrylate, alkyl Acrylate, and the like. - The
second seal 190 of the sealing complex 400 is disposed in the peripheral region II of thefirst substrate 110, and surrounds the display region I. For example, thesecond seal 190 is disposed along an outside of thefirst seal 150. In one embodiment, thefirst seal 150 is spaced apart from thesecond seal 190. - In one embodiment, the
second seal 190 includes an inorganic material. For example, thesecond seal 190 may include a frit and may be disposed in the outside of the peripheral region II. - In another example embodiment, the
second seal 190 may further include an ultraviolet (UV) curable material. For example, thesecond seal 190 includes a compound such as the organic material and the ultraviolet curable material and is hardened by irradiating an ultraviolet, a laser beam, visible ray, or the like. For example, the ultraviolet curable material may include epoxy Acrylate, polyester Acrylate, urethane Acrylate, polybutadine Acrylate, silicon Acrylate, alkyl Acrylate, and the like. - As the
second seal 190 combines with thesecond substrate 130, the organiclight emitting element 120 of thefirst substrate 110 is physically isolated from the external environment. In addition, thefirst substrate 110 and thesecond substrate 130 can be bonded. - The
third seal 310 of the sealing complex 400 is disposed in the display region I and surrounds the display region I. For example, thethird seal 310 is disposed between thefirst seal 150 andsecond seal 190. In one embodiment, thethird seal 310 can be contacted with thefirst seal 150 and thesecond seal 190. - In one embodiment, the
third seal 310 includes a high polymer. For example,third seal 310 may include a material such as carbon black having high absorption of a laser beam and disposed in center of the peripheral region II. As thethird seal 310 is fused by irradiating a laser beam and is solidified, a shock by a vibration of thefirst substrate 110 and thesecond substrate 130 may be absorbed. Also, thethird seal 310 provides that thefirst seal 150 and thesecond seal 190 are not contacted. - In another example embodiment, the
third seal 310 may further include an ultraviolet (UV) curable material. For example, thethird seal 310 may include a compound such as the organic material and the ultraviolet curable material and may be hardened by irradiating an ultraviolet, a laser beam, visible ray, or the like. For example, the ultraviolet curable material may include epoxy Acrylate, polyester Acrylate, urethane Acrylate, polybutadine Acrylate, silicon Acrylate, alkyl Acrylate, and the like. - As the
third seal 310 combines with thesecond substrate 130, the organiclight emitting element 120 of thefirst substrate 110 is physically isolated from the external environment. In addition, thefirst substrate 110 and thesecond substrate 130 can be bonded. In another example embodiment, the sealing complex 400 is formed on thesecond substrate 130 and may be combined with thefirst substrate 110. In the manufacturing process of the organic light emittingdisplay apparatus 100, the sealing complex 400 is formed on thesecond substrate 130. - Accordingly, as the organic light emitting
display apparatus 100 has the high polymer, thefirst seal 150 and thesecond seal 190 are not contacted. Also, a shock by a vibration of thefirst substrate 110 and thesecond substrate 130 may be absorbed. Thus, before a sealing compression process, the organic light emittingdisplay apparatus 100 may prevent pollution by contacting thefirst seal 150 and thesecond seal 190. - The foregoing is illustrative of example embodiments, and is not to be construed as limiting thereof. Although a few example embodiments have been described, those skilled in the art will readily appreciate that many modifications are possible in the example embodiments without materially departing from the novel teachings and advantages of example embodiments. Accordingly, all such modifications are intended to be included within the scope of example embodiments as defined in the claims. In the claims, means-plus-function clauses are intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Therefore, it is to be understood that the foregoing is illustrative of example embodiments and is not to be construed as limited to the specific embodiments disclosed, and that modifications to the disclosed example embodiments, as well as other example embodiments, are intended to be included within the scope of the appended claims. The inventive concept is defined by the following claims, with equivalents of the claims to be included therein.
Claims (4)
1. An organic light emitting display apparatus, comprising:
a first substrate comprising a display region and at least one peripheral region, the at least one peripheral display region surrounding the display region;
an organic light display element disposed in the display region of the first substrate;
a second substrate corresponding to the first substrate; and
a sealing complex including:
a first seal disposed in the at least one peripheral region;
a second seal surrounding the first seal being spaced apart from the first seal; and
a third seal disposed between the first seal and the second seal.
2. The organic light emitting display apparatus of claiml, wherein the first seal comprises an organic material.
3. The organic light emitting display apparatus of claiml, wherein the second seal comprises an inorganic material.
4. The organic light emitting display apparatus of claiml wherein the third seal comprises a high polymer.
Priority Applications (1)
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US14/714,008 US20150250032A1 (en) | 2013-04-29 | 2015-05-15 | Organic light emitting display apparatus and method of manufacturing the same |
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KR1020130047195A KR102060061B1 (en) | 2013-04-29 | 2013-04-29 | Organic light emitting display apparatus and method of manufacturing the same |
KR10-2013-0047195 | 2013-04-29 | ||
US14/014,038 US9066386B2 (en) | 2013-04-29 | 2013-08-29 | Organic light emitting display apparatus and method of manufacturing the same |
US14/714,008 US20150250032A1 (en) | 2013-04-29 | 2015-05-15 | Organic light emitting display apparatus and method of manufacturing the same |
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US14/014,038 Division US9066386B2 (en) | 2013-04-29 | 2013-08-29 | Organic light emitting display apparatus and method of manufacturing the same |
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US14/714,008 Abandoned US20150250032A1 (en) | 2013-04-29 | 2015-05-15 | Organic light emitting display apparatus and method of manufacturing the same |
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Also Published As
Publication number | Publication date |
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CN104124390A (en) | 2014-10-29 |
TWI593098B (en) | 2017-07-21 |
TW201442218A (en) | 2014-11-01 |
KR20140128595A (en) | 2014-11-06 |
US20140319998A1 (en) | 2014-10-30 |
US9066386B2 (en) | 2015-06-23 |
KR102060061B1 (en) | 2019-12-30 |
CN104124390B (en) | 2017-09-22 |
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