KR100308154B1 - Apparatus for rubbing alignment film of liquid crystal display - Google Patents

Apparatus for rubbing alignment film of liquid crystal display Download PDF

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Publication number
KR100308154B1
KR100308154B1 KR1019930014046A KR930014046A KR100308154B1 KR 100308154 B1 KR100308154 B1 KR 100308154B1 KR 1019930014046 A KR1019930014046 A KR 1019930014046A KR 930014046 A KR930014046 A KR 930014046A KR 100308154 B1 KR100308154 B1 KR 100308154B1
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South Korea
Prior art keywords
substrate
rubbing
main table
alignment film
liquid crystal
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KR1019930014046A
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Korean (ko)
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KR950003887A (en
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변용상
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엘지.필립스 엘시디 주식회사
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Priority to KR1019930014046A priority Critical patent/KR100308154B1/en
Publication of KR950003887A publication Critical patent/KR950003887A/en
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Publication of KR100308154B1 publication Critical patent/KR100308154B1/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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • G02F1/133784—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by rubbing
    • 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
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)

Abstract

PURPOSE: An apparatus for rubbing an alignment film of a liquid crystal display is provided to prevent a rubbing cloth from being damaged due to a height difference between a table and a substrate. CONSTITUTION: A table of a rubbing apparatus includes a main table(20) for adsorbing a substrate(22) and side tables(21) located around the main table. The side tables compensates a height difference between the main table and the substrate, caused by the thickness of the substrate. The main table has the same size as the size of the substrate. The main table has the first pins(23) for deciding the position of the substrate and the second pins(24) for fixing the substrate to the main table. The side tables are moved vertically.

Description

액정표시소자의 배향막 러빙장치Alignment film rubbing device for liquid crystal display device

본 발명은 액정표시소자의 배향막 러빙(Rubbing)장치에 관한 것으로, 러빙롤러의 러빙포의 손상을 방지하는 테이블장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for rubbing an alignment film of a liquid crystal display device, and to a table device for preventing damage to a rubbing cloth of a rubbing roller.

일반적으로 액정표시소자의 제조방법은 제1도에 도시한 바와 같이 상하유리기판(1)에 투명전극(2) 및 배향막(3)을 형성하고 배향막(3)을 일정방향으로 러빙하여 상하유리기판(1)을 합착한 뒤 실(Seal)재(4)로 형성된 공간에 액정(5)을 주입하여 표시소자를 형성한다.In general, a method of manufacturing a liquid crystal display device includes forming a transparent electrode 2 and an alignment layer 3 on the upper and lower glass substrates 1 and rubbing the alignment layer 3 in a predetermined direction, as shown in FIG. 1. After bonding (1), the liquid crystal 5 is injected into a space formed of the seal material 4 to form a display element.

이와 같은 액정표시소자 제조방법중 종래의 배향막 러빙방법을 첨부된 도면을 참조하여 설명하면 다음과 같다.Referring to the accompanying drawings, a conventional alignment film rubbing method of the liquid crystal display device manufacturing method as described above is as follows.

제2도는 종래의 배향막 러빙장치 구성도로써, 종래의 배향막 러빙방법은 원하는 러빙방향을 결정하기 위한 회전기구(10)와, 유리기판(8)을 진공, 흡착시켜주는 테이블(9)과, 러빙을 실시하기 위한 러빙포(布)가 부착되어 있는 러빙롤러(6)와 제전장치(7)로 구성된 러빙장치를 이용하여 유리기판(8)에 배향막(3)을 인쇄하고 액정을 배향시키기 위하여 배향막(3)표면을 러빙포(布)(라이론, 레이온)로 일정한 방향으로 러빙을 실시한다.2 is a configuration diagram of a conventional alignment film rubbing device. The conventional alignment film rubbing method includes a rotating mechanism 10 for determining a desired rubbing direction, a table 9 for vacuum and adsorption of the glass substrate 8, and rubbing. An alignment film for printing the alignment film 3 on the glass substrate 8 and aligning the liquid crystal by using a rubbing device composed of a rubbing roller 6 and an antistatic device 7 having a rubbing cloth attached thereto for carrying out (3) Rub the surface with rubbing cloth (Lylon, Rayon) in a certain direction.

이때 제2도와 같이 러빙포가 부착된 러빙롤러(6)를 회전시키면서 테이블(9)을 이동시켜 러빙을 실시하게 되는데 테이블(9)과 기판(8)과는 기판의 두께만큼의 단차가 존재하므로 러빙포가 회전하면서 기판과 만나는 기판의 엣지(A)부분에 의해 러빙포에 손상이 발생하게 되고 이와 같은 손상으로 인해 제품의 불량을 유발시키게 되는 문제가 있다.At this time, the rubbing is carried out by moving the table 9 while rotating the rubbing roller 6 with the rubbing cloth attached as shown in FIG. 2, since the step between the table 9 and the substrate 8 is equal to the thickness of the substrate. Damage to the rubbing cloth is caused by the edge (A) portion of the substrate that meets the substrate while the fabric rotates, there is a problem that causes the failure of the product due to such damage.

본 발명은 상술한 문제를 해결하기 위한 것으로, 테이블과 기판간의 단차로 인한 러빙포의 손상을 방지할 수 있는 액정표시소자의 배향막 러빙장치를 제공하는데 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an alignment film rubbing device for a liquid crystal display device capable of preventing damage to a rubbing cloth due to a step between a table and a substrate.

상기 목적을 달성하기 위해 본 발명은 그 상부면에 장착되는 기판(22)과 동일한 크기를 가지며 기판을 진공흡착시키는 주테이블(20)과, 상기 주테이블(20)의 주변부에 설치되어 상하로 동작하는 보조테이블(21)로 구성된 테이블장치를 포함하는 것을 특징으로 하는 배향막 러빙장치를 제공한다. 이하 첨부된 도면을 참조하여 본 발명을 상세히 설명한다.In order to achieve the above object, the present invention has a main table 20 having the same size as the substrate 22 mounted on an upper surface thereof, and a vacuum table for adsorbing the substrate, and installed up and down at a periphery of the main table 20. To provide an alignment film rubbing device comprising a table device consisting of an auxiliary table (21). Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

제3도는 본 발명의 액정표시소자 배향막 러빙장치의 테이블 장치를 나타낸 것으로, (a)는 평면도이고 (b)는 수직구조도이다.3 shows a table apparatus of the liquid crystal display element alignment film rubbing device of the present invention, where (a) is a plan view and (b) is a vertical structure diagram.

본 발명의 러빙장치의 테이블은 기판(22)을 흡착시키기 위한 주테이블(20)과 기판의 두께로 인한 단차를 보상하기 위해 주테이블(20) 주변에 형성되는 보조테이블(21)로 구성되어 있다.The table of the rubbing device of the present invention is composed of a main table 20 for adsorbing the substrate 22 and an auxiliary table 21 formed around the main table 20 to compensate for the step difference caused by the thickness of the substrate. .

상기 주테이블(20)은 기판과 동일한 크기를 가지며 주테이블(20)의 사방면에는 기판의 위치를 결정하는 제1핀(23)과 기판을 고정시키기 위한 제2핀(24)이 구비되어 있으며, 상기 보조테이블(21)은 상하로 움직일 수 있도록 되어 있다.The main table 20 has the same size as the substrate, and the four sides of the main table 20 are provided with first pins 23 for determining the position of the substrate and second pins 24 for fixing the substrate. The auxiliary table 21 is movable up and down.

상술한 본 발명의 테이블 장치의 동작을 설명하면 다음과 같다.The operation of the table apparatus of the present invention described above is as follows.

상기 보조테이블(21)을 주테이블(20)보다 낮게 위치시킨 다음, 제2핀 쪽에서 기판(22)을 주테이블 위로 밀어넣고 제1핀(23)을 이용하여 위치를 결정한 후, 제2핀(24)으로 기판을 고정시킨 다음 기판(22)을 주테이블(20)상에 진공흡착시킨다.The sub-table 21 is positioned lower than the main table 20, and then the substrate 22 is pushed onto the main table from the second pin side, and the second pin 21 is positioned using the first pin 23. 24 is fixed to the substrate, and then the substrate 22 is vacuum-adsorbed onto the main table 20.

그리고난 후 상기 보조테이블(21)을 상승시켜 그 상부면이 상기 주테이블 상에 흡착된 기판(22)의 상부면과 일치되도록 위치시킨다.The auxiliary table 21 is then raised to position its upper surface to coincide with the upper surface of the substrate 22 adsorbed on the main table.

상기와 같이 상기 기판(22)과 보조테이블(21)을 위치시킨 상태에서 상기 러빙롤러(6)를 회전이동시켜 러빙을 실시하게 되면 기판의 단차부분이 보조테이블에 의해 상쇄되어 전체적으로 평탄한 면이 되므로 종래와 같이 기판의 엣지에 의한 러빙포의 손상을 방지할 수 있게 된다.When the rubbing is performed by rotating the rubbing roller 6 in a state where the substrate 22 and the auxiliary table 21 are positioned as described above, the stepped portion of the substrate is offset by the auxiliary table so that the entire surface becomes flat. As in the related art, damage to the rubbing cloth due to the edge of the substrate can be prevented.

이상 상술한 바와 같이 본 발명에 의하면, 러빙포의 손상을 방지할 수 있게 되어 제품의 신뢰성이 향상되는 효과가 있다.As described above, according to the present invention, it is possible to prevent damage to the rubbing cloth, thereby improving the reliability of the product.

제1도는 일반적인 액정표시소자 구조도1 is a structure diagram of a general liquid crystal display device

제2도는 종래의 배향막 러빙장치 구성도2 is a block diagram of a conventional alignment film rubbing device

제3도는 본 발명의 배향막 러빙장치 구성도3 is a block diagram of the alignment film rubbing device of the present invention

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

20 : 주테이블 21 : 보조테이블 22 : 기판20: main table 21: auxiliary table 22: substrate

23 : 제1핀 24 : 제2핀23: first pin 24: second pin

Claims (2)

상부면에 장착되는 기판과 동일한 크기를 가지며 기판을 진공흡착시키는 주테이블과,A main table having the same size as the substrate mounted on the upper surface and vacuum adsorbing the substrate; 상기 주테이블의 주변부에 설치되어 상하로 동작하며 상기 기판과 상기 주테이블의 단차를 보상하는 보조테이블로 구성된 테이블 장치를 포함하는 것을 특징으로 하는 액정표시소자의 배향막 러빙 장치.And a table device provided at a periphery of the main table and operating up and down, the table device comprising a substrate and an auxiliary table for compensating for the difference between the main table and the main table. 제1항에 있어서, 상기 주테이블의 사방면에 상기 기판의 위치를 결정하고 고정시키기 위한 제1핀과 제2핀이 구비되는 것을 특징으로 하는 액정표시소자의 배향막 러빙 장치.2. The apparatus of claim 1, wherein first and second pins are provided on four sides of the main table to determine and fix the position of the substrate.
KR1019930014046A 1993-07-23 1993-07-23 Apparatus for rubbing alignment film of liquid crystal display KR100308154B1 (en)

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KR1019930014046A KR100308154B1 (en) 1993-07-23 1993-07-23 Apparatus for rubbing alignment film of liquid crystal display

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KR100308154B1 true KR100308154B1 (en) 2003-08-06

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57142614A (en) * 1981-02-27 1982-09-03 Hitachi Ltd Production of liquid crystal display element
JPH02100943A (en) * 1988-10-07 1990-04-12 Agency Of Ind Science & Technol Holder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57142614A (en) * 1981-02-27 1982-09-03 Hitachi Ltd Production of liquid crystal display element
JPH02100943A (en) * 1988-10-07 1990-04-12 Agency Of Ind Science & Technol Holder

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