WO2017188667A1 - Coating jig and coating method using same - Google Patents

Coating jig and coating method using same Download PDF

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Publication number
WO2017188667A1
WO2017188667A1 PCT/KR2017/004281 KR2017004281W WO2017188667A1 WO 2017188667 A1 WO2017188667 A1 WO 2017188667A1 KR 2017004281 W KR2017004281 W KR 2017004281W WO 2017188667 A1 WO2017188667 A1 WO 2017188667A1
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WO
WIPO (PCT)
Prior art keywords
coating
substrate
hole
jig
air
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PCT/KR2017/004281
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French (fr)
Korean (ko)
Inventor
박일우
이한배
Original Assignee
동우 화인켐 주식회사
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Publication of WO2017188667A1 publication Critical patent/WO2017188667A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C13/00—Means for manipulating or holding work, e.g. for separate articles
    • B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • 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
    • H10K71/10—Deposition of organic active material
    • H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating

Definitions

  • the present invention relates to a coating jig and a coating method using the same, and more particularly, to a coating jig for coating a cell substrate and a coating method using the same.
  • LCDs liquid crystal displays
  • OLED organic light-emitting diode
  • OLEDs can manufacture thin film transistor arrays for driving and color filters for expressing colors on a single substrate, resulting in very light and thin screens, wide color gamut, fast response, and high contrast ratios compared to LCDs. There are advantages such as having.
  • Such a flat panel display is used in combination with a touch input method implemented on a display without using a separate input device such as a keypad.
  • the jig used in the coating process is disclosed in Korean Patent Registration No. 10-1312364 and Korean Patent Publication No. 10-2014-0024743.
  • Republic of Korea Patent No. 10-1312364 is provided on the receiving portion for receiving a substrate on a jig, at least one guide member for guiding to be seated in place when the substrate is supplied on the jig;
  • a plurality of support members provided on the receiving portion and having suction holes for fixing the substrate supplied into the receiving portion in a fixed manner;
  • a vacuum suction device connected to the suction hole;
  • a plurality of air holes provided along an edge circumference of a bottom surface of the accommodation portion and for discharging the substrate;
  • a blower device including a blower connected to the plurality of air holes, and Korean Patent Application Laid-Open No.
  • 10-2014-0024743 includes a flat flat portion; A seating part for mounting a cell to be used as a substrate of the touch panel; A plurality of chucks arranged at the seat edges to assist in positioning the cells; A plurality of vacuum suction holes formed in the seating portion to help vacuum suction of the cell; And a plurality of air discharge holes arranged along the periphery of the seating edge and forcibly blowing air toward the edge of the cell.
  • the present invention is to solve the problem of the coating jig of the prior art, to provide a coating jig and a coating method using the same that can minimize the contamination of the coating liquid other than the coating surface of the substrate to the It is a task.
  • Another object of the present invention is to provide a coating jig and a coating method using the same that can reduce the contamination caused by the coating liquid to improve the visibility of the display.
  • a chuck for loading the substrate to expose the entire surface of the substrate to be coated;
  • a vacuum hole for vacuum suction of the back surface of the substrate facing the front surface;
  • An air hole positioned outside the vacuum hole from the center of the substrate and discharging air for blowing to the rear surface of the substrate;
  • a suction hole located outside the air hole from the center of the substrate and discharging excess coating liquid.
  • the air hole is adjacent to the edge of the substrate, but preferably located inside the substrate.
  • the suction hole is preferably located outside the substrate.
  • the vacuum hole and the air hole may be formed in plural, and each vacuum hole and the air hole may be located adjacent to each other.
  • the wall between the air hole and the suction hole has an upper surface inclined in the direction of the suction hole from the air hole.
  • the suction hole may have a moat shape formed at a position surrounding the substrate.
  • a coating method using the coating jig as described above comprising the steps of loading a substrate on the chuck; Fixing the substrate by sucking air through the vacuum hole; And injecting air through the air hole while injecting a coating liquid and sucking the excess of the coating liquid through the suction hole.
  • the substrate may be a cutting is completed in units of cells.
  • a cover window for a display device formed using the coating method as described above which is the side of the substrate when the thickness of the coating film formed on the front surface of the substrate is A ⁇ m
  • the thickness of the coating film formed on the A / 5 ⁇ m or less, the width of the coating film formed on the back of the substrate is 200 ⁇ m or less, and the thickness is A / 5 ⁇ m or less of the cover window.
  • the substrate is a transparent substrate
  • the coating film may be made of a hard coating, anti-fingerprint coating, anti-scattering coating, or anti-reflective coating composition.
  • the coating jig of the present invention it is possible to prevent contamination of the side or the back except the coating surface of the substrate with the coating liquid in coating the cell substrate, thereby improving the visibility of the display device using the cell substrate have.
  • 1 is a plan view of a coating jig according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line II-II 'of FIG. 1.
  • FIG. 3 is a view showing a state in which a substrate is mounted on the coating jig of FIG.
  • Figure 4 shows a cross section of the resultant coating using the coating jig according to an embodiment of the present invention.
  • 5A to 5D are cross-sectional views of a coating method using a coating jig according to one embodiment of the present invention.
  • FIG. 6 is a cross-sectional view showing the structure of a coating jig of a comparative example.
  • 7a to 7c is a graph comparing the degree of contamination of the coating film of the embodiment of the present invention and the comparative example.
  • the present invention provides a coating jig that can minimize the contamination of the substrate by forcibly blowing air while sending out the coating liquid toward the outer side of the substrate while sucking the excess coating liquid while stably fixing the substrate by vacuum adsorption.
  • FIG. 1 is a plan view of a coating jig according to an embodiment of the present invention
  • Figure 2 is a cross-sectional view of the II-II 'line of Figure 1
  • Figure 3 is a view showing a state in which the substrate is mounted on the coating jig of Figure 1 to be.
  • the coating jig 10 includes a jig main body 110 and a chuck 120.
  • the chuck 120 may load a substrate to be coated thereon and move up and down for unloading as indicated by arrows in FIG. 2.
  • the substrate 100 may be loaded on the chuck 120, wherein the substrate 100 is exposed to the surface to be coated (hereinafter, referred to as a front surface or a coating surface). ) Is loaded on.
  • a vacuum hole 130, an air hole 140, and a suction hole 150 are sequentially formed from the center direction.
  • the vacuum hole 130 is a hole for generating a vacuum, and may be connected to a vacuum line to generate a vacuum.
  • a plurality of vacuum holes 130 are disposed to surround the chuck 120, and vacuum suction the back surface of the substrate 100 opposite to the front surface of the substrate 100 to be loaded on the chuck 120. 100) to be fixed stably.
  • the substrate 100 may be fixed so that the substrate 100 is not lifted by the air injected by the air hole 140 described later.
  • the air hole 140 is located outside the vacuum hole 130 and is connected to an air line to discharge air to the rear surface of the substrate 100 to force air blowing.
  • the air holes 140 are arranged to surround the vacuum holes 130, and in particular, the air holes 140 and the vacuum holes 130 may be disposed to be adjacent to each other.
  • the outer wall of the air hole 140 is configured to be inclined outward toward the intake hole 150 where the air discharged from the air hole 140 is outward. It is desirable to allow mainly blowing.
  • the air injected from the air hole 140 prevents the sprayed coating liquid from penetrating into the back side of the substrate.
  • the suction hole 150 sucks and discharges the excess coating liquid generated during the coating process, and in particular, prevents vortices from occurring in the coating liquid sprayed by the air blown from the air hole 140 to the outside from the back of the substrate 100.
  • the coating liquid flowing down and the coating liquid flowing down from the side surface of the substrate 100 are sucked and quickly discharged.
  • the suction hole 150 may be connected to the discharge line.
  • the suction hole 150 may be configured in a continuous moat shape, and a plurality of discharge holes may be formed along the moat.
  • Figure 4 shows a cross section of the resultant coating using the coating jig according to an embodiment of the present invention.
  • FIG. 4 only the edge part of a base material is expanded and shown.
  • the thickness of the coating film 200 formed on the side of the substrate 100 is A.
  • the width of the coating film 200 formed on the back surface of the substrate may be 200 ⁇ m or less, and the thickness may be A / 5 ⁇ m or less.
  • the substrate 100 that can be coated using a coating jig according to an embodiment of the present invention.
  • the use of the coating jig of the present invention is particularly advantageous when the substrate is cut before the coating and the coating process is performed on a cell basis.
  • Performing the coating process on a cell basis is an advantageous method when the cost and equipment investment for post-coating cutting are large, such as using a tempered glass substrate or a tempered coating on a flexible plastic substrate.
  • a transparent substrate may be used, for example, a flexible transparent substrate may be used.
  • a flexible transparent substrate may be used.
  • any glass and plastic film having transparency can be used.
  • the thickness of the substrate 100 is not particularly limited, but may be 8 to 1000 ⁇ m, specifically 20 to 300 ⁇ m. If the thickness of the substrate is less than 8 ⁇ m, the strength is lowered, resulting in poor workability, and if it is more than 1000 ⁇ m, transparency and flexibility may be reduced.
  • the size of the substrate 100 used there is no particular limitation on the size of the substrate 100 used. Particularly, holes of various arrangements are formed, and a vacuum line, an air line, or the like may be connected to a hole of a desired position as needed, or the vacuum jig, air hole, and suction hole may be formed to be adjustable to form a coating jig 10. It may be used to fit the substrate 100 of various sizes.
  • coating film 200 that may be coated using the coating jig according to the embodiment of the present invention.
  • a coating jig according to an embodiment of the present invention may be used in a process of forming a hard coat film on the transparent substrate 100.
  • various coating films such as an anti-fingerprint coating film, an anti-scattering coating film, or an anti-reflective coating film may be used.
  • One embodiment of the present invention relates to a cover window for a display device manufactured by forming a hard coating film, an anti-fingerprint coating film, an anti-scattering coating film, or an anti-reflective coating film on a flexible transparent substrate.
  • the cover window for a display device of one embodiment of the present invention can also be attached to a polarizing plate, a touch sensor, or the like.
  • 5A to 5D are cross-sectional views of a coating method using a coating jig according to one embodiment of the present invention.
  • the chuck 120 is lifted up to load the substrate 100.
  • the chuck 120 is lowered and the air is sucked through the vacuum hole 130 to fix the substrate 100.
  • the coating is performed by spraying the coating liquid while injecting air through the air hole 140 and sucking through the suction hole 150.
  • the coating process that can be used is not particularly limited, but methods such as spray coating can be used.
  • the coating liquid is sprayed on the front surface of the substrate 100 is coated, the coating liquid flowing down the side surface of the substrate 100 and introduced into the back is the outside by the air injected from the air hole 140
  • the suction hole 150 is directed toward the suction hole 150.
  • the chuck 120 is lifted up to be separated from the jig main body 110, and then the coated substrate is separated from the jig 10.
  • the degree of contamination was compared with the case of coating without using the coating jig according to the embodiment of the present invention. Furthermore, in addition to arranging vacuum holes, air holes, and suction holes from the center outwards, various arrangements of air holes and suction holes are used to determine the optimal positions of the air holes and the suction holes in relation to the substrate. The degree of contamination was measured.
  • FIG. 6 is a cross-sectional view showing a comparative example (Comparative Example 1) for examining the pollution reduction performance of the embodiment of the present invention.
  • Comparative Example 1 further includes a vacuum hole in the center portion, and unlike the embodiment of the present invention shown in FIGS. 1 to 3, there is no air hole for injecting air, but an additional suction hole is disposed at the position of the air hole. One configuration is shown. Therefore, in the case of Comparative Example 1, the coating liquid on the back surface of the substrate is discharged downward through the additional suction hole instead of flowing outward.
  • FIGS. 1 to 3 illustrate a case in which a coating film is formed by using the coating jig according to the embodiment of the present invention shown in FIGS. 1 to 3 and the coating jig of Comparative Example 1, and the coating according to the embodiment of the present invention.
  • Comparative Example 1 when the coating film is formed using a coating jig according to an embodiment of the present invention, Comparative Example 1 and in all aspects of the contamination range from the edge, the maximum contamination size and the side contamination rate It can be seen that a significant contamination improvement compared to Comparative Example 2.

Abstract

The present invention relates to: a coating jig capable of reducing the contamination of side surfaces and a rear surface thereof in a coating process; and a coating method using the same.

Description

코팅용 지그 및 이를 이용한 코팅 방법Coating jig and coating method using the same
본 발명은 코팅용 지그 및 이를 이용한 코팅 방법에 관한 것으로, 구체적으로 셀 기재를 코팅하기 위한 코팅용 지그 및 이를 이용한 코팅 방법에 관한 것이다.The present invention relates to a coating jig and a coating method using the same, and more particularly, to a coating jig for coating a cell substrate and a coating method using the same.
인터넷이 보편화되고 소통되는 정보의 양이 폭발적으로 증가하면서 미래에는 언제 어디서나 정보를 접할 수 있는 ‘유비쿼터스 디스플레이(ubiquitous display)’의 환경이 창출될 것이며, 그에 따라 정보를 출력하는 매개체인 노트북, 전자수첩 및 PDA 등과 같은 휴대용 디스플레이의 역할이 중요하게 되었다. 이러한 유비쿼터스 디스플레이 환경을 구현하기 위해서는 원하는 때와 장소에서 정보를 바로 접할 수 있도록 디스플레이의 휴대성이 요구된다.As the Internet becomes more popular and the amount of information communicated explosively, the future will create an environment of 'ubiquitous display' where people can access information anytime and anywhere. And the role of portable displays such as PDAs have become important. In order to realize such a ubiquitous display environment, portability of a display is required so that information can be directly accessed at a desired time and place.
디스플레이의 휴대성을 위한 소형화 및 경량화의 요구에 따라, 평판 표시 장치가 개발되었으며, 이의 대표적인 예로는 액정 디스플레이(liquid-crystal display: LCD) 및 유기 발광 소자(organic light-emitting diode: OLED) 디스플레이를 들 수 있다. In response to the demand for miniaturization and light weight for display portability, flat panel displays have been developed, and representative examples thereof include liquid crystal displays (LCDs) and organic light-emitting diode (OLED) displays. Can be mentioned.
OLED는 구동을 위한 박막 트랜지스터 어레이와 색상 표현을 위한 컬러 필터를 하나의 기판 상에 제조할 수 있어 LCD에 비하여 매우 가볍고 얇은 화면을 구현할 수 있으며, 색재현 범위가 넓고, 응답 속도가 빠르며, 높은 명암비를 갖는 등의 장점이 있다. OLEDs can manufacture thin film transistor arrays for driving and color filters for expressing colors on a single substrate, resulting in very light and thin screens, wide color gamut, fast response, and high contrast ratios compared to LCDs. There are advantages such as having.
또한 이러한 평판 디스플레이는 키패드와 같은 별도의 입력 장치를 사용하지 않고 디스플레이 상에 구현되는 터치 입력방식과 결합하여 사용되는 추세이다.In addition, such a flat panel display is used in combination with a touch input method implemented on a display without using a separate input device such as a keypad.
이와 같은 디스플레이 장치를 제조하는 과정에서 여러 코팅 공정이 사용된다. 특히, 유연성과 공정 상의 편리함 등의 장점을 갖는 유기 물질의 사용이 증가하면서 코팅 공정이 차지하는 비중이 커지고 있다.Various coating processes are used in the manufacture of such display devices. In particular, as the use of organic materials having advantages such as flexibility and process convenience increases, the weight of the coating process is increasing.
코팅 공정에서 사용되는 지그에 관하여 대한민국 등록특허 제10-1312364호 및 대한민국 공개특허 제10-2014-0024743호에 개시되어 있다. 대한민국 등록특허 제10-1312364호에서는 지그 상에 기판을 수용하기 위한 수용부 상에 제공되며, 상기 기판이 상기 지그 상에 공급될 때 정위치에 안착되도록 가이드하기 위한 하나 이상의 가이드 부재; 상기 수용부 상에 제공되며, 상기 수용부 내로 공급된 상기 기판을 고정방식으로 지지하기 위한 흡입홀을 구비한 복수의 지지 부재; 상기 흡입홀과 연결되는 진공 흡입 장치; 상기 수용부의 바닥면의 가장자리 둘레를 따라 제공되며, 상기 기판을 배출하기 위한 복수의 에어홀; 및 상기 복수의 에어홀과 연결되는 송풍장치를 포함하는 기판 착탈 장치를 개시하고 있으며, 대한민국 공개특허 제10-2014-0024743호는 편평한 편평부와; 터치패널의 기판으로 사용될 셀을 안착하는 안착부; 셀의 위치고정을 돕도록 안착부 모서리에 배열된 다수의 척; 셀의 진공흡착을 돕도록 안착부 내에 형성된 다수의 진공흡입공; 및 안착부 가장자리 둘레를 따라 배열되어 셀의 가장자리를 향해 공기를 강제송풍하는 다수의 공기토출공;을 구비하는 터치패널 제조용 지그를 개시하고 있다.The jig used in the coating process is disclosed in Korean Patent Registration No. 10-1312364 and Korean Patent Publication No. 10-2014-0024743. Republic of Korea Patent No. 10-1312364 is provided on the receiving portion for receiving a substrate on a jig, at least one guide member for guiding to be seated in place when the substrate is supplied on the jig; A plurality of support members provided on the receiving portion and having suction holes for fixing the substrate supplied into the receiving portion in a fixed manner; A vacuum suction device connected to the suction hole; A plurality of air holes provided along an edge circumference of a bottom surface of the accommodation portion and for discharging the substrate; And a blower device including a blower connected to the plurality of air holes, and Korean Patent Application Laid-Open No. 10-2014-0024743 includes a flat flat portion; A seating part for mounting a cell to be used as a substrate of the touch panel; A plurality of chucks arranged at the seat edges to assist in positioning the cells; A plurality of vacuum suction holes formed in the seating portion to help vacuum suction of the cell; And a plurality of air discharge holes arranged along the periphery of the seating edge and forcibly blowing air toward the edge of the cell.
그러나, 이러한 종래 기술의 지그를 사용하여 코팅을 실시할 경우, 코팅면뿐 아니라, 그 측면과 배면에 코팅액이 도포되어 측면과 배면을 오염시키는 문제점이 있다.However, when the coating is performed using the jig of the prior art, there is a problem in that the coating liquid is applied not only to the coating surface but also to the side and the back thereof to contaminate the side and the back.
본 발명은 이와 같은 종래 기술의 코팅용 지그의 문제를 해결하기 위한 것으로, 기재의 코팅면을 제외한 다른 부분이 코팅액으로 오염되는 것을 최소화할 수 있는 코팅용 지그 및 이를 이용한 코팅 방법을 제공하는 것을 그 과제로 한다.The present invention is to solve the problem of the coating jig of the prior art, to provide a coating jig and a coating method using the same that can minimize the contamination of the coating liquid other than the coating surface of the substrate to the It is a task.
본 발명의 다른 과제는 코팅액으로 인한 오염을 줄여 디스플레이의 시인성을 개선할 수 있는 코팅용 지그 및 이를 이용한 코팅 방법을 제공하는 것이다.Another object of the present invention is to provide a coating jig and a coating method using the same that can reduce the contamination caused by the coating liquid to improve the visibility of the display.
이와 같은 과제를 해결하기 위하여 본 발명에서는, 코팅하고자 하는 기재의 전면을 노출하도록 상기 기재를 적재하는 척(chuck); 상기 전면과 대향하는 상기 기재의 배면을 진공 흡착하기 위한 진공 홀; 상기 기재의 중심으로부터 상기 진공 홀의 바깥쪽에 위치하며 상기 기재의 배면으로 송풍을 위한 공기를 배출하는 공기 홀; 및 상기 기재의 중심으로부터 상기 공기 홀의 바깥쪽에 위치하며 여분의 코팅액을 배출하는 흡입 홀을 포함하는 코팅용 지그를 제공한다.In order to solve the above problems, the present invention, a chuck (load) for loading the substrate to expose the entire surface of the substrate to be coated; A vacuum hole for vacuum suction of the back surface of the substrate facing the front surface; An air hole positioned outside the vacuum hole from the center of the substrate and discharging air for blowing to the rear surface of the substrate; And a suction hole located outside the air hole from the center of the substrate and discharging excess coating liquid.
여기에서, 상기 공기 홀은 상기 기재의 가장자리에 인접하되 상기 기재의 안쪽에 위치하는 것이 바람직하다.Here, the air hole is adjacent to the edge of the substrate, but preferably located inside the substrate.
또한, 상기 흡입 홀은 상기 기재의 바깥쪽에 위치하는 것이 바람직하다.In addition, the suction hole is preferably located outside the substrate.
상기 진공 홀과 상기 공기 홀은 각각 다수 형성될 수 있으며, 이때 각 진공 홀과 공기 홀이 서로 인접하여 위치할 수 있다.The vacuum hole and the air hole may be formed in plural, and each vacuum hole and the air hole may be located adjacent to each other.
상기 공기 홀과 상기 흡입 홀 사이의 벽은 그 상부면이 상기 공기 홀로부터 상기 흡입 홀 방향으로 경사진 형상을 갖는 것이 바람직하다.Preferably, the wall between the air hole and the suction hole has an upper surface inclined in the direction of the suction hole from the air hole.
상기 흡입 홀은 상기 기재를 둘러싸는 위치에 형성된 해자 형상일 수 있다.The suction hole may have a moat shape formed at a position surrounding the substrate.
본 발명의 다른 양상에 따르면, 상술한 바와 같은 코팅용 지그를 사용한 코팅 방법이 제공되며, 상기 코팅 방법은 상기 척 상에 기재를 적재하는 단계; 상기 진공 홀을 통해 공기를 흡입하여 상기 기재를 고정하는 단계; 및 코팅액을 분사하면서 상기 공기 홀을 통해 공기를 분사하고 상기 흡입 홀을 통해 여분의 상기 코팅액을 흡입하는 단계를 포함한다.According to another aspect of the present invention, there is provided a coating method using the coating jig as described above, the coating method comprising the steps of loading a substrate on the chuck; Fixing the substrate by sucking air through the vacuum hole; And injecting air through the air hole while injecting a coating liquid and sucking the excess of the coating liquid through the suction hole.
여기에서, 상기 기재는 셀 단위로 절단이 완료된 것일 수 있다.Here, the substrate may be a cutting is completed in units of cells.
본 발명의 또 다른 양상에 따르면, 상술한 바와 같은 코팅 방법을 사용하여 형성된 디스플레이 장치용 커버 윈도우가 제공되며, 이는 상기 기재의 상기 전면에 형성된 코팅막의 두께를 A㎛라고 할 때, 상기 기재의 측면에 형성되는 코팅막의 두께는 A/5㎛ 이하, 상기 기재의 배면에 형성되는 코팅막의 폭은 200㎛ 이하, 두께는 A/5㎛ 이하인 커버 윈도우이다.According to another aspect of the invention, there is provided a cover window for a display device formed using the coating method as described above, which is the side of the substrate when the thickness of the coating film formed on the front surface of the substrate is A㎛ The thickness of the coating film formed on the A / 5 μm or less, the width of the coating film formed on the back of the substrate is 200 μm or less, and the thickness is A / 5 μm or less of the cover window.
여기에서, 상기 기재는 투명기재이며, 상기 코팅막은 하드 코팅, 지문방지 코팅, 비산방지 코팅, 또는 반사방지 코팅 조성물로 이루어질 수 있다.Here, the substrate is a transparent substrate, the coating film may be made of a hard coating, anti-fingerprint coating, anti-scattering coating, or anti-reflective coating composition.
이와 같은 본 발명의 코팅용 지그에 의하면, 셀 기재를 코팅함에 있어서 기재의 코팅면을 제외한 측면 또는 배면이 코팅액으로 오염되는 것을 막을 수 있으며, 이에 따라 셀 기재를 사용한 디스플레이 장치의 시인성을 개선할 수 있다. According to the coating jig of the present invention, it is possible to prevent contamination of the side or the back except the coating surface of the substrate with the coating liquid in coating the cell substrate, thereby improving the visibility of the display device using the cell substrate have.
도 1은 본 발명의 일 실시예에 따른 코팅용 지그의 평면도이다.1 is a plan view of a coating jig according to an embodiment of the present invention.
도 2는 도 1의 II-II' 선의 단면도이다.FIG. 2 is a cross-sectional view taken along the line II-II 'of FIG. 1.
도 3은 도 1의 코팅용 지그에 기재를 장착한 상태를 나타내는 도면이다.3 is a view showing a state in which a substrate is mounted on the coating jig of FIG.
도 4는 본 발명의 실시예에 따른 코팅용 지그를 사용하여 코팅한 결과물의 단면을 도시한 것이다.Figure 4 shows a cross section of the resultant coating using the coating jig according to an embodiment of the present invention.
도 5a 내지 도 5d는 본 발명의 일 실시예에 따른 코팅용 지그를 사용한 코팅 방법의 공정 단면도이다.5A to 5D are cross-sectional views of a coating method using a coating jig according to one embodiment of the present invention.
도 6은 비교예의 코팅용 지그의 구성을 나타내는 단면도이다.6 is a cross-sectional view showing the structure of a coating jig of a comparative example.
도 7a 내지 도 7c는 본 발명의 실시예와 비교예의 코팅막의 오염 정도를 비교한 그래프이다.7a to 7c is a graph comparing the degree of contamination of the coating film of the embodiment of the present invention and the comparative example.
이하, 도면을 참조하여 본 발명에 따른 코팅용 지그 및 이를 이용한 코팅 방법의 바람직한 실시예에 관하여 상세히 설명한다. 다만 본 명세서에 첨부된 도면들은 본 발명을 설명하기 위한 예시일 뿐, 본 발명이 도면에 의해 한정되는 것은 아니다. 또한, 설명 상의 편의를 위해 일부 구성요소들은 도면 상에서 과장되게 표현되거나, 축소 또는 생략되어 있을 수 있다.Hereinafter, with reference to the drawings will be described in detail with respect to a preferred embodiment of the coating jig and coating method using the same according to the present invention. However, the drawings attached to the present specification are only examples for describing the present invention, and the present invention is not limited to the drawings. In addition, some of the components may be exaggerated, reduced or omitted in the drawings for convenience of description.
본 발명은 진공 흡착으로 기재를 안정적으로 고정하면서 공기를 강제 송풍하여 기재의 외곽 쪽으로 코팅액을 내보내고 여분의 코팅액을 흡입함으로써 기재의 오염을 최소화할 수 있는 코팅용 지그를 제공한다.The present invention provides a coating jig that can minimize the contamination of the substrate by forcibly blowing air while sending out the coating liquid toward the outer side of the substrate while sucking the excess coating liquid while stably fixing the substrate by vacuum adsorption.
도 1은 본 발명의 일 실시예에 따른 코팅용 지그의 평면도이고, 도 2는 도 1의 II-II' 선의 단면도이며, 도 3은 도 1의 코팅용 지그에 기재를 장착한 상태를 나타내는 도면이다.1 is a plan view of a coating jig according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the II-II 'line of Figure 1, Figure 3 is a view showing a state in which the substrate is mounted on the coating jig of Figure 1 to be.
도 1 및 도 2를 참조하면, 본 발명의 일 실시예에 따른 코팅용 지그(10)는 지그 본체(110)와 척(chuck)(120)을 포함하여 이루어진다. 척(120)은 그 상부에 코팅할 기재를 적재할 수 있으며 도 2에서 화살표로 표시한 바와 같이 하역을 위하여 상하로 움직일 수 있다. 1 and 2, the coating jig 10 according to an embodiment of the present invention includes a jig main body 110 and a chuck 120. The chuck 120 may load a substrate to be coated thereon and move up and down for unloading as indicated by arrows in FIG. 2.
도 3에 나타난 바와 같이, 척(120) 상에 기재(100)가 적재될 수 있으며, 이 때 기재(100)는 코팅하고자 하는 면(이하, 전면 또는 코팅면이라 함)이 노출되도록 척(120) 상에 적재된다.As shown in FIG. 3, the substrate 100 may be loaded on the chuck 120, wherein the substrate 100 is exposed to the surface to be coated (hereinafter, referred to as a front surface or a coating surface). ) Is loaded on.
지그 본체(110)에는 중심 방향으로부터 차례로 진공 홀(130), 공기 홀(140) 및 흡입 홀(150)이 형성되어 있다.In the jig main body 110, a vacuum hole 130, an air hole 140, and a suction hole 150 are sequentially formed from the center direction.
진공 홀(130)은 진공을 생성하는 홀로서, 진공 라인에 연결되어 진공을 생성할 수 있다. 진공 홀(130)은 척(120)을 둘러싸도록 다수가 배치되고, 척(120) 상에 적재되는 기재(100)의 전면과 대향하는 기재(100)의 배면을 진공 흡착하여 코팅 공정 중에 기재(100)가 안정적으로 고정되도록 한다. 특히, 후술하는 공기 홀(140)에 의해 분사되는 공기에 의해 기재(100)가 들뜨지 않도록 기재(100)를 고정할 수 있다.The vacuum hole 130 is a hole for generating a vacuum, and may be connected to a vacuum line to generate a vacuum. A plurality of vacuum holes 130 are disposed to surround the chuck 120, and vacuum suction the back surface of the substrate 100 opposite to the front surface of the substrate 100 to be loaded on the chuck 120. 100) to be fixed stably. In particular, the substrate 100 may be fixed so that the substrate 100 is not lifted by the air injected by the air hole 140 described later.
공기 홀(140)은 진공 홀(130)의 바깥쪽에 위치하며 공기 라인에 연결되어 기재(100)의 배면으로 공기를 배출하여 강제 송풍한다. 공기 홀(140)은 진공 홀(130)을 둘러싸도록 다수 배치되며, 특히 공기 홀(140)과 진공 홀(130)이 인접하도록 배치되는 것이 바람직하다. 또한, 이 때 도 2의 A 부분에서 나타난 바와 같이 공기 홀(140)의 바깥쪽 벽은 바깥쪽으로 경사진 형태로 구성되어 공기 홀(140)로부터 배출되는 공기가 바깥쪽인 흡입 홀(150) 쪽으로 주로 송풍되도록 하는 것이 바람직하다. The air hole 140 is located outside the vacuum hole 130 and is connected to an air line to discharge air to the rear surface of the substrate 100 to force air blowing. The air holes 140 are arranged to surround the vacuum holes 130, and in particular, the air holes 140 and the vacuum holes 130 may be disposed to be adjacent to each other. In addition, at this time, as shown in part A of FIG. 2, the outer wall of the air hole 140 is configured to be inclined outward toward the intake hole 150 where the air discharged from the air hole 140 is outward. It is desirable to allow mainly blowing.
공기 홀(140)로부터 분사되는 공기는 분사되는 코팅액이 기재의 배면 쪽으로 침투하는 것을 방지한다. The air injected from the air hole 140 prevents the sprayed coating liquid from penetrating into the back side of the substrate.
흡입 홀(150)은 코팅 공정 중 발생하는 여분의 코팅액을 흡입하여 배출하며, 특히 공기 홀(140)로부터 송풍되는 공기에 의해 분사되는 코팅액에 와류가 발생하지 않도록 하여 기재(100) 배면으로부터 바깥쪽으로 흘러내리는 코팅액과 기재(100)의 측면으로부터 흘러내리는 코팅액을 흡입하여 빠르게 배출한다. 흡입 홀(150)은 배출 라인과 연결될 수 있다. The suction hole 150 sucks and discharges the excess coating liquid generated during the coating process, and in particular, prevents vortices from occurring in the coating liquid sprayed by the air blown from the air hole 140 to the outside from the back of the substrate 100. The coating liquid flowing down and the coating liquid flowing down from the side surface of the substrate 100 are sucked and quickly discharged. The suction hole 150 may be connected to the discharge line.
흡입 홀(150)은 진공 홀(130) 및 공기 홀(140)과는 달리 전체적으로 이어진 해자 형태로 구성될 수 있으며, 해자를 따라 다수의 배출공이 형성될 수 있다. Unlike the vacuum hole 130 and the air hole 140, the suction hole 150 may be configured in a continuous moat shape, and a plurality of discharge holes may be formed along the moat.
이러한 구성에 따라, 기재(100)의 코팅면을 제외한 측면 및 배면이 코팅액으로 오염되는 것을 최소화할 수 있다. According to this configuration, it is possible to minimize the contamination of the side and the back surface except the coating surface of the substrate 100 with the coating liquid.
도 4는 본 발명의 실시예에 따른 코팅용 지그를 사용하여 코팅한 결과물의 단면을 도시한 것이다. 도 4에서는 기재의 가장자리 부분만을 확대하여 나타내고 있다. Figure 4 shows a cross section of the resultant coating using the coating jig according to an embodiment of the present invention. In FIG. 4, only the edge part of a base material is expanded and shown.
스프레이 코팅과 같은 코팅 공정을 통해 코팅막을 형성할 경우, 기재 측면과 배면에 코팅막이 일부 형성되는 것을 피하기 어렵다. 그러나, 본 발명의 실시예에 따른 코팅용 지그를 사용하면 이를 현저히 줄일 수 있다.When forming a coating film through a coating process, such as spray coating, it is difficult to avoid a part of the coating film formed on the side and back of the substrate. However, by using the coating jig according to the embodiment of the present invention it can be significantly reduced.
구체적으로, 도 4에 나타난 바와 같이, 기재(100) 전면에 코팅막(200)이 형성되어 있으며, 코팅막의 두께가 A㎛일 경우, 기재(100) 측면에 형성되는 코팅막(200)의 두께는 A/5㎛ 이하, 기재 배면에 형성되는 코팅막(200)의 폭은 200㎛ 이하, 두께는 A/5㎛ 이하로 형성할 수 있다. Specifically, as shown in FIG. 4, when the coating film 200 is formed on the entire surface of the substrate 100, and the thickness of the coating film is A μm, the thickness of the coating film 200 formed on the side of the substrate 100 is A. The width of the coating film 200 formed on the back surface of the substrate may be 200 μm or less, and the thickness may be A / 5 μm or less.
본 발명의 실시예에 따른 코팅용 지그를 사용하여 코팅될 수 있는 기재(100)에는 특별한 제한이 없다. 다만, 기판 전체를 코팅한 후 절단하여 개별 셀을 제조하는 공정에 비하여, 코팅 전에 절단이 이루어지고 셀 단위로 코팅 공정을 진행하는 기재의 경우 본 발명의 코팅용 지그의 사용이 특히 유리하다.There is no particular limitation on the substrate 100 that can be coated using a coating jig according to an embodiment of the present invention. However, compared to the process of manufacturing the individual cells by coating and cutting the entire substrate, the use of the coating jig of the present invention is particularly advantageous when the substrate is cut before the coating and the coating process is performed on a cell basis.
셀 단위로 코팅 공정을 진행하는 것은 강화 유리 기재를 사용하거나 유연성 플라스틱 기재에 강화 코팅을 실시하는 등과 같이 코팅 후 절단에 비용 및 설비 투자가 큰 경우에 유리한 방법이다.Performing the coating process on a cell basis is an advantageous method when the cost and equipment investment for post-coating cutting are large, such as using a tempered glass substrate or a tempered coating on a flexible plastic substrate.
기재(100)로는 투명기재를 사용할 수 있으며, 예를 들면 유연성 투명기재를 사용할 수 있다. 유연성 투명기재의 재질로는 투명성이 있는 유리 및 플라스틱 필름이면 어떤 것이라도 사용 가능하다.As the substrate 100, a transparent substrate may be used, for example, a flexible transparent substrate may be used. As the material of the flexible transparent substrate, any glass and plastic film having transparency can be used.
기재(100)의 두께는 특별히 제한되지 않으나, 8 내지 1000㎛, 구체적으로는 20 내지 300㎛일 수 있다. 기재의 두께가 8㎛ 미만이면 강도가 저하되어 가공성이 떨어지게 되고, 1000㎛ 초과이면 투명성 및 유연성이 저하될 수 있다.   The thickness of the substrate 100 is not particularly limited, but may be 8 to 1000 μm, specifically 20 to 300 μm. If the thickness of the substrate is less than 8 μm, the strength is lowered, resulting in poor workability, and if it is more than 1000 μm, transparency and flexibility may be reduced.
또한, 사용되는 기재(100)의 크기에 특별한 제한이 없다. 특히 다양한 배치의 홀을 형성하고 필요에 따라 원하는 위치의 홀에 진공 라인, 공기 라인 등을 연결하여 사용하거나, 진공 홀, 공기 홀, 흡입 홀의 위치를 조정 가능하도록 형성하여 코팅용 지그(10)를 다양한 크기의 기재(100)에 맞추어 사용하도록 할 수도 있다. In addition, there is no particular limitation on the size of the substrate 100 used. Particularly, holes of various arrangements are formed, and a vacuum line, an air line, or the like may be connected to a hole of a desired position as needed, or the vacuum jig, air hole, and suction hole may be formed to be adjustable to form a coating jig 10. It may be used to fit the substrate 100 of various sizes.
본 발명의 실시예에 따른 코팅용 지그를 사용하여 코팅될 수 있는 코팅막(200)의 종류 또한 특별한 제한이 없다. 예를 들면, 투명기재(100) 상에 하드코팅막을 형성하는 공정에 본 발명의 실시예에 따른 코팅용 지그를 사용할 수 있다. 다른 예로, 지문방지 코팅막, 비산방지 코팅막, 또는 반사방지 코팅막 등의 다양한 코팅막을 사용할 수도 있다.There is no particular limitation on the type of coating film 200 that may be coated using the coating jig according to the embodiment of the present invention. For example, a coating jig according to an embodiment of the present invention may be used in a process of forming a hard coat film on the transparent substrate 100. As another example, various coating films such as an anti-fingerprint coating film, an anti-scattering coating film, or an anti-reflective coating film may be used.
본 발명의 일 실시형태는 유연성 투명기재에 하드코팅막, 지문방지 코팅막, 비산방지 코팅막, 또는 반사방지 코팅막을 형성하여 제조되는 디스플레이 장치용 커버 윈도우에 관한 것이다. 본 발명의 일 실시형태의 디스플레이 장치용 커버 윈도우는 편광판, 터치 센서 등에 부착하여 사용할 수도 있다.One embodiment of the present invention relates to a cover window for a display device manufactured by forming a hard coating film, an anti-fingerprint coating film, an anti-scattering coating film, or an anti-reflective coating film on a flexible transparent substrate. The cover window for a display device of one embodiment of the present invention can also be attached to a polarizing plate, a touch sensor, or the like.
도 5a 내지 도 5d는 본 발명의 일 실시예에 따른 코팅용 지그를 사용한 코팅 방법의 공정 단면도이다.5A to 5D are cross-sectional views of a coating method using a coating jig according to one embodiment of the present invention.
먼저, 도 5a에 나타난 바와 같이, 척(120)을 위로 올려 기재(100)를 적재한다.First, as shown in Figure 5a, the chuck 120 is lifted up to load the substrate 100.
다음, 도 5b에 나타난 바와 같이, 척(120)을 아래로 내린 다음 진공 홀(130)을 통해 공기를 흡입하여 기재(100)가 고정되도록 한다.Next, as shown in FIG. 5B, the chuck 120 is lowered and the air is sucked through the vacuum hole 130 to fix the substrate 100.
이제, 도 5c에 나타난 바와 같이, 공기 홀(140)을 통해 공기를 분사하고 흡입 홀(150)을 통해 흡입하면서 코팅액을 분사하여 코팅을 실시한다. 이 때, 사용할 수 있는 코팅 공정은 특별히 제한하지 않으나, 스프레이 코팅 등의 방법을 사용할 수 있다.Now, as shown in FIG. 5C, the coating is performed by spraying the coating liquid while injecting air through the air hole 140 and sucking through the suction hole 150. At this time, the coating process that can be used is not particularly limited, but methods such as spray coating can be used.
도 5c에 도시된 바와 같이, 기재(100)의 전면에는 코팅액이 분사되어 코팅되고, 기재(100)의 측면을 따라 흘러내리고 배면으로 유입되는 코팅액은 공기 홀(140)로부터 분사되는 공기에 의해 바깥쪽의 흡입 홀(150) 방향을 향하게 되며, 흡입 홀(150)로 흡입된다. As shown in Figure 5c, the coating liquid is sprayed on the front surface of the substrate 100 is coated, the coating liquid flowing down the side surface of the substrate 100 and introduced into the back is the outside by the air injected from the air hole 140 The suction hole 150 is directed toward the suction hole 150.
도 5c의 단계를 거쳐 코팅이 완료되면, 도 5d에 나타난 바와 같이, 척(120)을 위로 올려 지그 본체(110)로부터 떨어지도록 한 후, 코팅된 기재를 지그(10)로부터 분리한다.When the coating is completed through the steps of FIG. 5C, as shown in FIG. 5D, the chuck 120 is lifted up to be separated from the jig main body 110, and then the coated substrate is separated from the jig 10.
본 발명의 실시예에 따른 코팅용 지그의 오염 방지 성능을 확인하기 위하여 본 발명의 실시예에 따른 코팅용 지그를 사용하지 않고 코팅한 경우와 오염 정도를 비교하였다. 또한, 기본적으로 중심으로부터 바깥쪽을 향해 진공 홀, 공기 홀, 흡입 홀을 배치하는 것에 더하여, 기재와의 관계 하에 공기 홀과 흡입 홀의 최적 위치를 결정하기 위하여 공기 홀과 흡입 홀의 다양한 배치를 이용하여 오염 정도를 측정하였다.In order to confirm the contamination prevention performance of the coating jig according to an embodiment of the present invention, the degree of contamination was compared with the case of coating without using the coating jig according to the embodiment of the present invention. Furthermore, in addition to arranging vacuum holes, air holes, and suction holes from the center outwards, various arrangements of air holes and suction holes are used to determine the optimal positions of the air holes and the suction holes in relation to the substrate. The degree of contamination was measured.
도 6은 본 발명의 실시예의 오염 감소 성능을 알아보기 위한 비교예(비교예 1)를 나타내는 단면도이다.6 is a cross-sectional view showing a comparative example (Comparative Example 1) for examining the pollution reduction performance of the embodiment of the present invention.
비교예 1은 중앙 부분에 진공 홀을 추가로 포함하며, 도 1 내지 도 3에 도시된 본 발명의 실시예와는 달리 공기를 분사하는 공기 홀이 없는 대신 공기 홀의 위치에 추가로 흡입 홀을 배치한 구성을 나타낸다. 따라서 비교예 1의 경우 기재 배면의 코팅액은 바깥쪽으로 흘러나가는 대신 추가의 흡입 홀을 통해 아래로 배출된다.Comparative Example 1 further includes a vacuum hole in the center portion, and unlike the embodiment of the present invention shown in FIGS. 1 to 3, there is no air hole for injecting air, but an additional suction hole is disposed at the position of the air hole. One configuration is shown. Therefore, in the case of Comparative Example 1, the coating liquid on the back surface of the substrate is discharged downward through the additional suction hole instead of flowing outward.
도 7a 내지 도 7c는 도 1 내지 도 3에서 도시한 본 발명의 실시예에 따른 코팅용 지그와 비교예 1의 코팅용 지그를 각각 사용하여 코팅막을 형성한 경우 및 본 발명의 실시예에 따른 코팅용 지그를 사용하지 않고 기재에 코팅막을 형성한 경우(비교예 2)에 대해 코팅막의 오염 정도를 비교한 그래프로서, 각각 가장자리로부터의 오염 범위, 오염의 최대 크기 및 측면 오염율을 나타낸다. 7A to 7C illustrate a case in which a coating film is formed by using the coating jig according to the embodiment of the present invention shown in FIGS. 1 to 3 and the coating jig of Comparative Example 1, and the coating according to the embodiment of the present invention. A graph comparing the degree of contamination of the coating film with respect to the case where the coating film was formed on the substrate (Comparative Example 2) without using a solvent jig, and the contamination range from the edge, the maximum size of the contamination, and the side contamination rate were shown, respectively.
도 7a 내지 도 7c에 나타난 바와 같이, 본 발명의 실시예에 따른 코팅용 지그를 사용하여 코팅막을 형성한 경우, 가장자리로부터의 오염 범위, 오염 최대 크기 및 측면 오염율의 모든 면에서 비교예 1 및 비교예 2에 비해 현저한 오염 개선을 가져옴을 알 수 있다.As shown in Figure 7a to 7c, when the coating film is formed using a coating jig according to an embodiment of the present invention, Comparative Example 1 and in all aspects of the contamination range from the edge, the maximum contamination size and the side contamination rate It can be seen that a significant contamination improvement compared to Comparative Example 2.
이상에서 본 발명의 바람직한 실시예에 대하여 도면을 참조하여 설명하였지만, 본 발명은 상술한 실시예에 한정되는 것은 아니며, 본 발명의 본질적인 특성에서 벗어나지 않는 범위에서 변형된 형태로 본 발명이 구현될 수 있음을 이해할 수 있을 것이다.Although the preferred embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited to the above-described embodiment, and the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention. I can understand that.
그러므로 명시된 실시예들은 한정적인 관점이 아니라 설명적인 관점에서 고려되어야 하고, 본 발명의 범위는 전술한 설명이 아니라 특허청구 범위에 나타나 있으며, 그와 동등한 범위 내에 있는 모든 차이점은 본 발명에 포함된 것으로 해석되어야 할 것이다.Therefore, the described embodiments should be considered in descriptive sense only and not for purposes of limitation, and the scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent scope are included in the present invention. It should be interpreted.
[부호의 설명][Description of the code]
10: 코팅용 지그 100: 기재10: jig for coating 100: substrate
110: 코팅용 지그 본체 120: 척110: coating jig body 120: chuck
130: 진공 홀 140: 공기 홀130: vacuum hole 140: air hole
150: 흡입 홀 200: 코팅막150: suction hole 200: coating film

Claims (12)

  1. 코팅하고자 하는 기재의 전면을 노출하도록 상기 기재를 적재하는 척(chuck);A chuck for loading the substrate to expose the front side of the substrate to be coated;
    상기 전면과 대향하는 상기 기재의 배면을 진공 흡착하기 위한 진공 홀;A vacuum hole for vacuum suction of the back surface of the substrate facing the front surface;
    상기 기재의 중심으로부터 상기 진공 홀의 바깥쪽에 위치하며 상기 기재의 배면으로 송풍을 위한 공기를 배출하는 공기 홀; 및An air hole positioned outside the vacuum hole from the center of the substrate and discharging air for blowing to the rear surface of the substrate; And
    상기 기재의 중심으로부터 상기 공기 홀의 바깥쪽에 위치하며 여분의 코팅액을 배출하는 흡입 홀;A suction hole positioned outside the air hole from the center of the substrate and discharging excess coating liquid;
    을 포함하는 코팅용 지그.Jig for coating comprising a.
  2. 제 1 항에 있어서, The method of claim 1,
    상기 공기 홀은 상기 기재의 가장자리에 인접하되 상기 기재의 안쪽에 위치하는,The air hole is adjacent to an edge of the substrate and located inside of the substrate,
    코팅용 지그.Coating jig.
  3. 제 1 항에 있어서, The method of claim 1,
    상기 흡입 홀은 상기 기재의 바깥쪽에 위치하는,The suction hole is located outside of the substrate,
    코팅용 지그.Coating jig.
  4. 제 1 항에 있어서, The method of claim 1,
    상기 진공 홀과 상기 공기 홀은 각각 다수 형성되며,The vacuum hole and the air hole are each formed a plurality,
    각 진공 홀과 공기 홀이 서로 인접하여 위치하는,Where each vacuum hole and air hole are located adjacent to each other,
    코팅용 지그.Coating jig.
  5. 제 1 항에 있어서, The method of claim 1,
    상기 공기 홀과 상기 흡입 홀 사이의 벽은 그 상부면이 상기 공기 홀로부터 상기 흡입 홀 방향으로 경사진 형상을 갖는,The wall between the air hole and the suction hole has an upper surface inclined in the direction of the suction hole from the air hole,
    코팅용 지그.Coating jig.
  6. 제 1 항에 있어서, The method of claim 1,
    상기 흡입 홀은 상기 기재를 둘러싸는 위치에 형성된 해자 형상인,The suction hole is a moat shape formed in a position surrounding the substrate,
    코팅용 지그.Coating jig.
  7. 제 1 항 내지 제 6 항 중 어느 한 항의 코팅용 지그를 사용한 코팅 방법에 있어서,In the coating method using the coating jig of any one of Claims 1-6,
    상기 척 상에 기재를 적재하는 단계;Loading a substrate on the chuck;
    상기 진공 홀을 통해 공기를 흡입하여 상기 기재를 고정하는 단계; 및Fixing the substrate by sucking air through the vacuum hole; And
    코팅액을 분사하면서 상기 공기 홀을 통해 공기를 분사하고 상기 흡입 홀을 통해 여분의 상기 코팅액을 흡입하는 단계;Spraying air through the air hole while injecting a coating liquid and sucking the excess coating liquid through the suction hole;
    를 포함하는 코팅 방법.Coating method comprising a.
  8. 제 7 항에 있어서, The method of claim 7, wherein
    상기 기재는 셀 단위로 절단이 완료된 것인,The substrate is a cell-cutting is completed,
    코팅 방법.Coating method.
  9. 제 7 항의 코팅 방법을 사용하여 형성된 코팅막을 포함하는 디스플레이 장치용 커버 윈도우에 있어서,In the cover window for a display device comprising a coating film formed using the coating method of claim 7,
    상기 기재의 상기 전면에 형성된 코팅막의 두께를 A㎛라고 할 때, 상기 기재의 측면에 형성되는 코팅막의 두께는 A/5㎛ 이하, 상기 기재의 배면에 형성되는 코팅막의 폭은 200㎛ 이하, 두께는 A/5㎛ 이하인,When the thickness of the coating film formed on the entire surface of the substrate is A 탆, the thickness of the coating film formed on the side of the substrate is A / 5 탆 or less, and the width of the coating film formed on the back of the substrate is 200 탆 or less, the thickness Is A / 5 μm or less,
    커버 윈도우.Cover windows.
  10. 제 9 항에 있어서, The method of claim 9,
    상기 기재는 투명기재이며, 상기 코팅막은 하드코팅, 지문방지 코팅, 비산방지 코팅, 또는 반사방지 코팅 조성물로 이루어진, The substrate is a transparent substrate, the coating film is made of a hard coating, anti-fingerprint coating, anti-scattering coating, or anti-reflective coating composition,
    커버 윈도우.Cover windows.
  11. 제 9 항의 커버 윈도우가 부착된 편광판.A polarizer having a cover window of claim 9 attached.
  12. 제 9 항의 커버 윈도우가 부착된 터치 센서.The touch sensor attached to the cover window of claim 9.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117019567A (en) * 2023-10-10 2023-11-10 常州捷佳创智能装备有限公司 Silicon wafer feeding and coating mechanism, coating platform and silicon wafer coating machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002361155A (en) * 2001-06-01 2002-12-17 Tokyo Electron Ltd Coating device and its method
US20050241572A1 (en) * 2004-05-03 2005-11-03 Jae Doo Eom Apparatus for coating photoresist
US20060068093A1 (en) * 2002-12-26 2006-03-30 Hideo Shite Coating device and coating film forming method
US20060233952A1 (en) * 2005-04-15 2006-10-19 Tokyo Electron Limited Liquid processing method and liquid processing apparatus
US20090285991A1 (en) * 2008-05-14 2009-11-19 Tokyo Electron Limited Coating apparatus and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8979087B2 (en) * 2011-07-29 2015-03-17 Applied Materials, Inc. Substrate supporting edge ring with coating for improved soak performance
KR101312364B1 (en) 2011-12-22 2013-09-27 주식회사 나래나노텍 Mounting and Removal Device and Method of Substrate, and Coating Apparatus and Method Having the Same
KR20140024743A (en) 2012-08-21 2014-03-03 삼성전기주식회사 Jig for manufacturing touch panel
KR101973778B1 (en) * 2012-11-16 2019-04-30 삼성디스플레이 주식회사 Flexible display device and method of manufacturing cover window of the same
JP6090113B2 (en) * 2013-10-30 2017-03-08 東京エレクトロン株式会社 Liquid processing equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002361155A (en) * 2001-06-01 2002-12-17 Tokyo Electron Ltd Coating device and its method
US20060068093A1 (en) * 2002-12-26 2006-03-30 Hideo Shite Coating device and coating film forming method
US20050241572A1 (en) * 2004-05-03 2005-11-03 Jae Doo Eom Apparatus for coating photoresist
US20060233952A1 (en) * 2005-04-15 2006-10-19 Tokyo Electron Limited Liquid processing method and liquid processing apparatus
US20090285991A1 (en) * 2008-05-14 2009-11-19 Tokyo Electron Limited Coating apparatus and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117019567A (en) * 2023-10-10 2023-11-10 常州捷佳创智能装备有限公司 Silicon wafer feeding and coating mechanism, coating platform and silicon wafer coating machine

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