KR940004320B1 - Method of making liquid crystal display devices - Google Patents

Method of making liquid crystal display devices Download PDF

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Publication number
KR940004320B1
KR940004320B1 KR1019910022803A KR910022803A KR940004320B1 KR 940004320 B1 KR940004320 B1 KR 940004320B1 KR 1019910022803 A KR1019910022803 A KR 1019910022803A KR 910022803 A KR910022803 A KR 910022803A KR 940004320 B1 KR940004320 B1 KR 940004320B1
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South Korea
Prior art keywords
spacer
liquid crystal
crystal display
dot
dots
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KR1019910022803A
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Korean (ko)
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KR930013814A (en
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배효대
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주식회사 금성사
이헌조
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Priority to KR1019910022803A priority Critical patent/KR940004320B1/en
Publication of KR930013814A publication Critical patent/KR930013814A/en
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Publication of KR940004320B1 publication Critical patent/KR940004320B1/en

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    • 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

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

The method egually distributes a cell gap by spacer screen mask means, and improves quality and electrical optic characteristic. The method employs a displaying dot (12) which patterns transparent conductive layers (3)(3') on the transparent glasses (2)(2'), oriented layers (5)(5'), a spacer screen mask (13) which forms a hole (14) and screen dot (15), a spacer (8) which is compounded by solvent, and spacers (8) egually distributed to holes of displaying dots (12). The transparent conduction layers (3)(3') are patterned on transparent glasses (2)(2'). The backward layers (5)(5') are formed on the display dots (12). The spacer screen mask (13) is connected to the screen dot (15). The compounded spacers (8) are equally distributed among displaying dots (12).

Description

액정표시소자의 제조방법Manufacturing method of liquid crystal display device

제1도는 종래 액정표시소자의 구성을 보인 단면도.1 is a cross-sectional view showing the configuration of a conventional liquid crystal display device.

제2도는 종래 액정표시소자의 평면도.2 is a plan view of a conventional liquid crystal display device.

제3도는 본 발명에 의한 액정표시소자의 평면도.3 is a plan view of a liquid crystal display device according to the present invention.

제4도는 본 발명에 이용되는 스페이서 스크린 마스크의 평면도.4 is a plan view of a spacer screen mask used in the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

2, 2': 상,하투명박판유리 3, 3': 투명전도성 박막2, 2 ': upper and lower transparent glass 3, 3': transparent conductive thin film

5, 5': 배향막 12 : 표시 도트5, 5 ': alignment film 12: display dot

13 : 스페이서 스크린 마스크 14 : 홈13: spacer screen mask 14: home

15 : 스크린 도트15: screen dot

본 발명은 액정표시소자의 제조방법에 관한 것으로, 특히 배향막이 형성된 유리기판에 스페이서를 일정하게 분사시켜 액정표시소자의 셀(cell)의 갭(gap)을 일정하게 유지함으로써 표시품질을 향상하도록 한 액정 표시소자의 제조방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a liquid crystal display device. In particular, a spacer is sprayed onto a glass substrate on which an alignment layer is formed so as to maintain a constant gap of a cell of the liquid crystal display device, thereby improving display quality. A method for manufacturing a liquid crystal display device.

종래에 액정표시소자를 제작함에 있어서는 제1도 및 제2도에 도시한 바와 같이, 상,하투명박판유리(2)(2')위에 투명전도성 박막(3)(3')을 원하는 패턴으로 코팅한 다음 그위에 절연막(4)(4')과 배향막(5)(5')을 차례로 형성하고, 원하는 크기의 스페이서(7)를 시일재(6)에 섞은 후 시일(seal) 인쇄한다. 그리고 시일 인쇄된 유리기판은 원하는 각도로 러빙(rubbing)시킨 다음 일정한 크기의 스페이서(8)를 분사기로 분사시키고 상,하판을 합착, 경화시킨 다음 절단함으로써 액정표시소자의 셀(cell)이 만들어진다.In fabricating a liquid crystal display device in the related art, as shown in FIGS. 1 and 2, transparent conductive thin films 3 and 3 'are formed on upper and lower transparent glass plates 2 and 2' in a desired pattern. After coating, an insulating film 4 (4 ') and an alignment film (5) (5') are formed thereon, and a spacer 7 of a desired size is mixed with the sealing material 6 and then seal printed. The seal printed glass substrate is then rubbed at a desired angle, and then a predetermined size of spacer 8 is sprayed with an injector, and the upper and lower plates are bonded, cured, and cut to form a cell of the liquid crystal display device.

이와 같이 셀을 만든 후에는 셀의 액정주입구를 통해 액정(9)이 주입되고 그 주입구는 봉지재(11)로 봉지된다. 봉지된 셀의 상,하유리기판 표면에는 평광판(1)(1')을 부착함으로써 액정표시소자가 완성된다.After the cell is made in this way, the liquid crystal 9 is injected through the liquid crystal injection hole of the cell, and the injection hole is sealed with the encapsulant 11. The liquid crystal display device is completed by attaching the flat plate 1 (1 ') to the upper and lower glass substrate surfaces of the sealed cell.

상기한 바와 같은 액정표시소자에서 스페이서(8)를 사용하는 것은 원하는 셀 갭(cell gap)을 얻기 위한 것이며, 스페이서(8)는 용매에 섞은 다음 분사기의 분사노즐을 통해 배향막(5)(5')이 도포된 유리(2)(2')전면에 분사되어진다.In the liquid crystal display device as described above, the use of the spacer 8 is to obtain a desired cell gap, which is mixed with a solvent and then aligned through the spray nozzles of the injector. ) Is sprayed onto the entire glass 2 (2 ').

그러나 상기한 바와 같이 액정표시소자를 제작함에 있어서, 일정한 크기의 스페이서(8)를 용매에 섞은 다음 분사기로 배향막(5)(5')이 형성된 유리(2)(2')의 전면에 분사시키면 제2도 A부 상세도처럼 스페이서(8)가 불균일하게 분사되어 스페이서(8)가 뭉친 부분 (가)과, 없는 부분(나)이 발생되어 셀 갭 이 불균일하게 되는 문제점이 유발되고 표시 도트(12)위에 분사되어진 스페이서(8)로 인해 표시품질 및 전기광학적 특성이 저하되는 결함이 있었으며, 또한 스페이서(8) 분사시 사용된 용매로 인해 배향막(5)(5')에 핀 홀(pin hole)이 형성되어 액정표시소자의 신뢰성에 막대한 악영향이 초래되는 결합이 있었다.However, in manufacturing the liquid crystal display device as described above, if the spacer 8 of a certain size is mixed in a solvent and then sprayed on the entire surface of the glass 2, 2 ′ on which the alignment films 5, 5 ′ are formed with an injector. FIG. 2 is a view in which the spacer 8 is unevenly ejected as shown in the detail of the portion A, which causes a problem that the gap between the spacer 8 is agglomerated and the missing part (b) is generated, resulting in an uneven cell gap. 12) The display quality and the electro-optical properties were deteriorated due to the spacer 8 sprayed on, and the pin holes in the alignment films 5 and 5 'due to the solvent used when the spacer 8 was sprayed. ) Was formed, resulting in a significant adverse effect on the reliability of the liquid crystal display device.

본 발명은 상기한 바와 같은 종래 액정표시소자의 제조방법의 결함을 해소하기 위하여, 투명전도성 박막 패터닝에 의한 액정표시소자의 표시 도트와 같은 크기로 스크린 도트를 형성한 스페이서 스크린 마스크를 이용하여 스페이서를 표시 도트 사이로만 분사시킴으로써 균일한 셀 갭을 형성하여 표시품질과 전기광학적 특성을 향상시키도록 한 것인 바, 이러한 본 발명을 첨부도면에 의하여 상세히 설명하면 다음과 같다.The present invention provides a spacer using a spacer screen mask in which screen dots are formed to have the same size as the display dots of the liquid crystal display device by transparent conductive thin film patterning in order to solve the deficiencies of the conventional manufacturing method of the liquid crystal display device. By spraying only between the display dots to form a uniform cell gap to improve the display quality and electro-optical characteristics, the present invention will be described in detail with reference to the accompanying drawings.

제3도는 본 발명에 의한 액정표시소자의 평면도 이고, 제4도는 본 발명에 이용되는 스페이서 스크린 마스크의 평면도로서 이하, 제1도와 제3도 및 제4도를 참조하여 설명하면, 투명박판유리(2)(2')위에 투명전도성 박막(3)(3')을 패터닝(patterning)하여 표시 도트(12)를 형성하고, 그위에 절연막(4)(4')과 배향막(5)(5')을 형성한 다음, 제4도와 같이 상기 표시 도트(12)와 일치하는 스크린 도트(screen dot)(15)와 그 주위에 홈(14)이 형성된 스페이서 스크린 마스크(13)를 올려놓고 스페이서(8)를 분사하는 것을 특징으로 하고 있으며, 이후 공정은 종래와 같다.FIG. 3 is a plan view of a liquid crystal display device according to the present invention, and FIG. 4 is a plan view of a spacer screen mask used in the present invention. Referring to FIGS. 1 and 3 and 4, transparent thin glass ( 2) The transparent conductive thin films 3 and 3 'are patterned on (2') to form the display dots 12, and the insulating films 4 (4 ') and the alignment films 5 (5') are formed thereon. ), And then put a spacer screen mask 13 having a screen dot 15 corresponding to the display dot 12 and a groove 14 formed around the display dot 12 as shown in FIG. ), And the subsequent steps are the same as in the prior art.

상기한 바와 같이, 투명전도성 박막(3)(3')의 패터닝에 의한 표시 도트(5)(5')이 형성된 유리(2)(2')위에 스페이서 스크린 마스크(13)상의 스크린 도트(15)를 일치시켜 결합한 다음 분사기의 분사노즐을 통해 용매와 혼합한 스페이서(8)을 분사시키면, 스페이서(8)들은 스페이서 스크린 마스크(13)의 홈(14)을 통해 제3도의 A부 상세도와 같이 일정하게 분사되고 나머지는 스페이서 스크린 마스크(13)상에 잔존하게 되어 작업 후 다시 수거하여 재 사용한다. 또한 분사시 사용되는 용매는 대부분 스페이서 스크린 마스크(13)상에 떨어지므로 용매에 의한 배향막(5)(5')상에 핀 혼(pin hole)을 방지할 수 있다.As described above, the screen dots 15 on the spacer screen mask 13 on the glass 2, 2 'on which the display dots 5, 5' are formed by patterning the transparent conductive thin films 3, 3 '. ) Are combined, and then the spacer 8 mixed with the solvent is sprayed through the spray nozzle of the injector, and the spacers 8 are shown through the groove 14 of the spacer screen mask 13 as shown in the detail of part A of FIG. It is sprayed uniformly and the remainder remains on the spacer screen mask 13, and after collection, it is collected and reused. In addition, since most of the solvent used during spraying falls on the spacer screen mask 13, pin holes can be prevented on the alignment layers 5 and 5 'by the solvent.

이상에서 설명한 바와 같은 본 발명은 스페이서 스크린 마스크(spacer scree mask)를 사용하여 스페이서를 분산시켜 부착시킨 것으로서, 스페이서 분사시 뭉쳐진 스페이서를 걸러주고 스페이서를 표시 도트 사이로만 균일하게 분사시켜 주기 때문에 셀 갭(cell gap)을 균일하게 형성할 수 있고 표시 도트 위에 스페이서가 뿌려지지 않기 때문에 표시품질 및 전기광학적 특성을 향상시킬 수 있다. 그리고 분사시 사용되는 용매도 스페이서 스크린 마스크로 막아주기 때문에 용매에 의한 액정표시소자의 신뢰성 저하를 방지할 수 있다.As described above, the present invention is made by dispersing and attaching a spacer by using a spacer screen mask, and filtering the aggregated spacers and spraying the spacers uniformly between the display dots. The cell gap) can be uniformly formed and the spacers are not scattered on the display dots, thereby improving display quality and electro-optical characteristics. In addition, since the solvent used for spraying is also prevented by the spacer screen mask, it is possible to prevent the liquid crystal display device from deteriorating reliability.

Claims (1)

투명박판유리(2)(2')위해 투명전도성 박막(3)(3')이 패터닝되어 표시 도트(12)가 형성되고, 그위체 배향막(5)(5')이 형성된 후, 표시 도트(12)와 일치되는 스크린 도트(15)와 그 주위에 홈(14)이 형성된 스페이서 스크린 마스크(13)를 결합하고, 용매와 혼합된 스페이서(8)를 분사하여, 스페이서(8)를 표시 도트(12)사이에만 균일하게 부착함을 특징으로 하는 액정표시소자의 제조방법.The transparent conductive thin film 3 (3 ') is patterned for the transparent thin glass 2 (2') to form the display dots 12, and after the alignment alignment layers 5 and 5 'are formed, the display dots ( The spacer dot mask 13 having the grooves 14 formed around the screen dot 15 coinciding with 12 is combined, and the spacer 8 mixed with the solvent is sprayed to display the spacer 8 with the display dot ( 12) A method of manufacturing a liquid crystal display device, characterized in that it is uniformly attached only between.
KR1019910022803A 1991-12-12 1991-12-12 Method of making liquid crystal display devices KR940004320B1 (en)

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Application Number Priority Date Filing Date Title
KR1019910022803A KR940004320B1 (en) 1991-12-12 1991-12-12 Method of making liquid crystal display devices

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Application Number Priority Date Filing Date Title
KR1019910022803A KR940004320B1 (en) 1991-12-12 1991-12-12 Method of making liquid crystal display devices

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KR930013814A KR930013814A (en) 1993-07-22
KR940004320B1 true KR940004320B1 (en) 1994-05-19

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100431243B1 (en) * 1996-07-30 2004-07-16 엘지.필립스 엘시디 주식회사 Method for printing seal in uniform density without deteriorating lcd characteristics
KR100411149B1 (en) * 1996-09-04 2004-05-14 엘지.필립스 엘시디 주식회사 Method and device for diffusing spacer of liquid crystal panel and liquid crystal panel structure fabricated by the same

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