KR20070064119A - Apparatus for rubbing an alignment layer of liquid display panel - Google Patents

Apparatus for rubbing an alignment layer of liquid display panel Download PDF

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Publication number
KR20070064119A
KR20070064119A KR1020050124705A KR20050124705A KR20070064119A KR 20070064119 A KR20070064119 A KR 20070064119A KR 1020050124705 A KR1020050124705 A KR 1020050124705A KR 20050124705 A KR20050124705 A KR 20050124705A KR 20070064119 A KR20070064119 A KR 20070064119A
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South Korea
Prior art keywords
rubbing
cap
rubbing cloth
alignment film
cloth
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KR1020050124705A
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Korean (ko)
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양준영
함용성
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엘지.필립스 엘시디 주식회사
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Priority to KR1020050124705A priority Critical patent/KR20070064119A/en
Publication of KR20070064119A publication Critical patent/KR20070064119A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
    • H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
    • H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
    • H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
    • 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
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/22—Antistatic materials or arrangements

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mechanical Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Liquid Crystal (AREA)

Abstract

An apparatus for rubbing an alignment layer of an LCD(Liquid Crystal Display) is provided to discharge static electricity, which is generated by a rubbing cloth, to the outside, by forming a grounded cap of a conductive metal on an upper portion of a rubbing roller. A rotary roller(130) has a penetration hole(120) into which a pivot(110) is inserted. A rubbing cloth(140) is attached on a circumferential surface of the rotary roller. A cap(150) is joined to the pivot of the rotary roller, wherein the cap discharges static electricity generated by the rubbing cloth. An exhaust unit(160) is connected to an outlet(151) of the cap, wherein the exhaust unit performs vacuum suction of external particles, which are attached on the rubbing cloth, and exhausts the external particles. A supporting part(170) is connected to the pivot of the rotary roller, wherein the supporting part supports and rotates the rotary roller.

Description

액정 표시 패널의 배향막 러빙장치{Apparatus for rubbing an alignment layer of liquid display panel}Apparatus for rubbing an alignment layer of liquid display panel

도 1은 액정 표시 패널의 구성을 도시한 사시도.1 is a perspective view showing a configuration of a liquid crystal display panel.

도 2는 종래의 배향막을 러빙시키는 러빙장치를 도시한 사시도.2 is a perspective view showing a rubbing device for rubbing a conventional alignment film.

도 3은 종래의 러빙장치를 이용하여 기판상에 형성된 배향막을 러빙시키는 도면.3 is a view of rubbing an alignment film formed on a substrate using a conventional rubbing device.

도 4는 종래의 러빙장치를 구성하는 러빙포에 부착된 이물질에 의해 스크래치가 형성된 배향막을 도시한 도면.4 is a view showing an alignment film on which scratches are formed by foreign matter attached to a rubbing cloth constituting a conventional rubbing device.

도 5는 종래의 러빙장치를 구성하는 러빙포가 이물질에 충돌하여 산포된 형상을 도시한 도면.5 is a view illustrating a shape in which a rubbing cloth constituting a conventional rubbing device collides with a foreign matter and is scattered.

도 6은 본 발명에 따른 배향막을 러빙시키는 러빙장치를 도시한 사시도Figure 6 is a perspective view showing a rubbing device for rubbing the alignment film according to the present invention

도 7은 본 발명에 따른 기판에 형성된 배향막을 러빙시키는 장치를 도시한 분해 사시도.7 is an exploded perspective view showing an apparatus for rubbing the alignment film formed on the substrate according to the present invention.

도 8a는 본 발명에 따른 러빙장치를 구성하는 배출구가 형성된 캡(cap)의 평면도.Figure 8a is a plan view of a cap (cap) formed with a discharge port constituting the rubbing device according to the present invention.

도 8b는 본 발명에 따른 러빙장치를 구성하는 러빙포를 정렬(aging)시키는 트랙이 형성된 캡(cap)의 내측을 도시한 도면.Fig. 8B is a view showing the inside of a cap in which a track for aging a rubbing cloth constituting the rubbing device according to the present invention is formed.

도 9는 본 발명에 따른 러빙장치를 구성하는 캡(cap)이 배향막에 존재하는 이물질에 충돌하여 산포된 러빙포를 정렬하는 동작을 설명하기 위한 도면.FIG. 9 is a view for explaining an operation of aligning scattered rubbing cloths by colliding with a foreign matter present in an alignment layer of a cap constituting a rubbing device according to the present invention; FIG.

도 10은 본 발명에 따른 러빙장치를 구성하는 배출수단이 러빙포에 부착된 이물질을 진공 흡착하는 과정을 설명하기 위한 도면.10 is a view for explaining a process of vacuum suction the foreign matter attached to the rubbing cloth discharge means constituting the rubbing device according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

100 : 러빙장치 110 : 중심축100: rubbing device 110: central axis

120 : 관통홀 130 : 회전롤러120: through hole 130: rotating roller

140 : 러빙포 150 : 캡(cap)140: rubbing cloth 150: cap

151: 배출구 152 : 트랙151: outlet 152: track

160 : 지지부 170 : 배출수단 160: support 170: discharge means

200 : 이송장치 300 : 기판 200: transfer device 300: substrate

310 : 배향막 400 : 이물질(particle)310: alignment layer 400: foreign matter (particle)

본 발명은 액정표시패널의 배향막 러빙장치에 과한 것으로서, 특히 러빙포에 의해 발생되는 정전기를 제거하는 동시에 러빙포를 실시간으로 정렬(aging)시킬 수 있는 트랙이 형성된 캡을 구비된 러빙장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for rubbing an alignment film of a liquid crystal display panel, and more particularly, to a rubbing device having a cap formed with a track capable of aligning the rubbing cloth in real time while removing static electricity generated by the rubbing cloth. .

액정 표시 장치는 전계를 이용하여 액정의 광투과율을 조절함으로써 화상을 표시하게 된다. 이를 위해, 액정 표시 장치는 액정셀들이 매트릭스 형태로 배열되 어진 액정 표시 패널과, 그 액정 표시 패널을 구동하기 위한 구동회로를 구비한다. The liquid crystal display device displays an image by adjusting the light transmittance of the liquid crystal using an electric field. To this end, the liquid crystal display includes a liquid crystal display panel in which liquid crystal cells are arranged in a matrix, and a driving circuit for driving the liquid crystal display panel.

이러한 액정 표시 장치는, 도 1에 도시된 바와 같이, 액정을 사이에 두고 서로 대향하여 합착된 박막 트랜지스터 기판(70) 및 칼러 필터 기판(80)을 구비한다.As shown in FIG. 1, the liquid crystal display includes a thin film transistor substrate 70 and a color filter substrate 80 bonded to each other with the liquid crystal interposed therebetween.

여기서, 박막 트랜지스터 기판(70)은 서로 교차되게 형성된 게이트 라인(71) 및 데이터 라인(72)과, 그들(71,72)의 교차부에 형성된 박막 트랜지스터(73)와, 박막 트랜지스터(73)와 접속된 화소전극(74)과, 그들 위에 액정 배향을 위해 도포된 하부 배향막(미도시)으로 구성된다.Here, the thin film transistor substrate 70 includes a gate line 71 and a data line 72 formed to cross each other, a thin film transistor 73 formed at an intersection of the 71 and 72, a thin film transistor 73, A pixel electrode 74 connected thereto and a lower alignment film (not shown) coated thereon for liquid crystal alignment.

칼라 필터 기판(80)은 빛샘 방지를 위한 블랙 매트릭스(81)와, 칼라 구현을 위한 칼러 필터(82), 화소 전극(74)과 수직전계를 이루는 공통전극(83)과, 그들 위에 액정 배향을 위해 도포된 상부 배향막(84)으로 구성된다.The color filter substrate 80 includes a black matrix 81 for preventing light leakage, a color filter 82 for color implementation, a common electrode 83 forming a vertical electric field with the pixel electrode 74, and a liquid crystal alignment thereon. And an upper alignment layer 84 applied for the purpose.

여기서, 배향막은 박막 트랜지스터 기판(70)과 컬러필터기판(80) 사이에 개재되는 액정(90)을 소정 방향으로 배향시키기 역할을 수행하는 것으로서, 배향막 상에는 러빙장치를 이용하여 폴리이미드 등의 유기막에 대한 러빙공정이 수행됨에 따라 액정이 정렬되는 배향홈(미도시)이 형성된다.Here, the alignment film serves to orient the liquid crystal 90 interposed between the thin film transistor substrate 70 and the color filter substrate 80 in a predetermined direction. An organic film such as polyimide is used on the alignment film by using a rubbing device. As the rubbing process is performed, alignment grooves (not shown) in which the liquid crystals are aligned are formed.

이하, 도 2를 참조하여 종래의 기판상에 형성된 배향막을 러빙시키는 러빙장치의 구성 및 동작에 대해 설명한다. 여기서, 도 2는 종래의 기판상에 형성된 배향막을 러빙시키는 러빙장치의 사시도 이다.Hereinafter, with reference to FIG. 2, the structure and operation | movement of the rubbing apparatus which rubs the orientation film formed on the conventional board | substrate are demonstrated. 2 is a perspective view of a rubbing device for rubbing an alignment film formed on a conventional substrate.

도 2를 참조하면, 액정표시패널을 구성하는 박막 트랜지스터 또는 칼라필터기판을 구성하는 배향막에 액정분자를 배향시키는 배향홈을 형성하는 러빙장치(10)는, 중심축(11)이 관통된 원통 형상의 회전롤러(12)와, 회전롤러(12)의 외주면에 부착되어 이송장치(20)를 통해 이송되는 기판(30)상의 배향막(31)을 러빙시키는 러빙포(13) 및 회전롤러(12)의 중심축(11)에 연결되어 회전롤러(12)를 이동 및 지지시키는 지지대(14)로 구성되어 있다. 이때, 회전롤러(12)는 지지장치(미도시)에 연결된 지지대(14)에 의해 지상에 현가되어 있다.Referring to FIG. 2, the rubbing device 10 forming an alignment groove for aligning liquid crystal molecules in a thin film transistor constituting a liquid crystal display panel or an alignment film constituting a color filter substrate has a cylindrical shape through which a central axis 11 penetrates. A rubbing cloth 13 and a rotating roller 12 which are attached to the rotary roller 12 and the outer circumferential surface of the rotary roller 12 so as to rub the alignment film 31 on the substrate 30 to be transferred through the transfer device 20. It is connected to the central axis of the 11 is composed of a support 14 for moving and supporting the rotating roller 12. At this time, the rotary roller 12 is suspended on the ground by the support 14 connected to the support device (not shown).

여기서, 회전롤러(12)는 중심축(11)에 연결된 지지대(14)에 의해 지상에 현가된 상태를 유지하는 동시에 외주면을 따라 부착된 러빙포(13)를 사이에 두고 이송장치(20)를 통해 이송되는 기판(30)의 배향막(31)과 접촉된다.Here, the rotary roller 12 maintains the suspended state on the ground by the support 14 connected to the central axis 11 and at the same time, the conveying device 20 with the rubbing cloth 13 attached along the outer circumferential surface therebetween. It is in contact with the alignment layer 31 of the substrate 30 to be transferred through.

이때, 이송장치(20)를 통해 배향막(31)이 형성된 기판(30)이 이송됨에 따라, 회전롤러(12)는 이송되는 기판(30)에 의해 야기되는 회전력에 의해 소정 방향으로 회전한다. 따라서, 회전롤러(12)는 이송장치(20)를 통해 이송되는 기판(30)과의 이격거리 및 회전력에 연동하여 배향막(31)을 러빙시키기 위한 러빙력을 러빙포(13)에 전달한다.At this time, as the substrate 30 on which the alignment layer 31 is formed is transferred through the transfer apparatus 20, the rotary roller 12 rotates in a predetermined direction by a rotational force caused by the substrate 30 to be transferred. Therefore, the rotary roller 12 transmits a rubbing force for rubbing the alignment layer 31 to the rubbing cloth 13 in conjunction with the separation distance and the rotational force from the substrate 30 transferred through the transfer device 20.

러빙포(13)는 회전롤러(12)의 외주면을 따라 부착된 상태에서 회전롤러(12)에 의해 제공되는 러빙력을 이용하여 배향막(31)을 러빙함으로써, 이송수단(20)을 통해 이송되는 기판(30)의 배향막(31) 상에 액정분자를 소정 방향으로 배향시키기 위한 배향홈을 형성한다.The rubbing cloth 13 is transported through the conveying means 20 by rubbing the alignment layer 31 using the rubbing force provided by the rotating roller 12 while being attached along the outer circumferential surface of the rotating roller 12. An alignment groove for forming liquid crystal molecules in a predetermined direction is formed on the alignment layer 31 of the substrate 30.

이때, 상술한 바와 같이 구성된 종래의 러빙장치(10)를 통해 기판(30)상에 형성된 배향막(31)에 대한 러빙공정을 수행하는 경우, 도 3에 도시된 바와 같이, 회전롤러(12)의 외주면에 부착된 러빙포(13)에 배향막(31) 상에 존재하는 이물질(particle)(40)이 부착되는 경우가 발생하였다.At this time, when performing a rubbing process for the alignment film 31 formed on the substrate 30 through the conventional rubbing device 10 configured as described above, as shown in Figure 3, the rotating roller 12 In some cases, foreign matters 40 present on the alignment layer 31 adhere to the rubbing cloth 13 attached to the outer circumferential surface.

이때, 러빙포(13)에 이물질이 부착된 상태에서 기판(30)상에 형성된 배향막(31)에 대한 러빙공정을 수행하는 경우, 도 4에 도시된 바와 같이, 러빙포(13)에 부착된 이물질(40)에 의해 기판(30)상에 형성된 배향막(31)상에 스크래치(50)가 발생된다는 문제점이 있었다.In this case, when the rubbing process is performed on the alignment layer 31 formed on the substrate 30 in the state in which the foreign matter is attached to the rubbing cloth 13, as shown in FIG. 4, the rubbing cloth 13 may be attached to the rubbing cloth 13. There was a problem that the scratch 50 is generated on the alignment layer 31 formed on the substrate 30 by the foreign material 40.

또한, 회전롤러(12)의 외주면에 부착된 러빙포(13)가 이송되는 기판(30)상의 배향막(31)을 러빙하는 과정에서 배향막(31)상에 존재하는 이물질(40)과 충돌하는 경우, 도 5에 도시된 바와 같이, 러빙포(13)가 이물질(40)과의 충돌에 기인하여 산포되는 영역(A)이 발생됨에 따라 배향막(31)에 균일한 러빙력을 제공하지 못하여 콘트라스트비를 저하시킨다는 문제점이 있었다.In addition, when the rubbing cloth 13 attached to the outer circumferential surface of the rotary roller 12 collides with the foreign matter 40 present on the alignment film 31 while rubbing the alignment film 31 on the substrate 30 to be transported. As shown in FIG. 5, as the rubbing cloth 13 is scattered due to the collision with the foreign material 40, a scattering area A is generated, and thus the uniformity of the rubbing force is not provided to the alignment layer 31. There was a problem of lowering.

또한, 회전롤러(12)의 외주면에 부착된 러빙포(13)는 이송되는 기판(30)의 배향막(31)과 접촉된 상태에서 러빙공정을 수행함에 따라 마찰에 의한 정전기를 발생시키고, 러빙포(13)에 의해 발생된 정전기는 기판(30)상에 잔류하여 신호라인 또는 구동회로에 영향을 미쳐 오동작을 발생시킨다는 문제점이 있었다.In addition, the rubbing cloth 13 attached to the outer circumferential surface of the rotary roller 12 generates static electricity by friction as the rubbing process is performed in contact with the alignment layer 31 of the substrate 30 to be transferred, and the rubbing cloth 13 The static electricity generated by (13) remains on the substrate 30 and affects the signal line or the driving circuit, causing a malfunction.

상술한 바와 같은 문제점을 해소하기 위해, 본 발명의 목적은 러빙롤러의 상단부에 접지된 형태의 도전성 금속으로 구성된 캡을 형성함으로써, 러빙포에 의해 발생되는 정전기를 외부로 방전시킬 수 있는 배향막 러빙장치를 제공하는 데 있다.In order to solve the above problems, an object of the present invention is to form a cap consisting of a conductive metal of the grounded form on the upper end of the rubbing roller, the alignment film rubbing device capable of discharging the static electricity generated by the rubbing cloth to the outside To provide.

또한, 본 발명은 러빙롤러의 상단에 형성된 캡의 내면에 트랙을 형성함으로써, 배향막을 러빙시에 산개된 러빙포를 에이징(aging)할 수 있는 배향막 러빙장치를 제공하는 데 있다.The present invention also provides an alignment film rubbing device capable of aging a rubbing cloth spread out at the time of rubbing the alignment film by forming a track on the inner surface of the cap formed on the upper end of the rubbing roller.

또한, 본 발명은 러빙롤러의 상단에 형성된 캡의 개구부에 결합되는 배출수단을 형성함으로써, 러빙포에 의해 흡착된 파티클을 외부로 배출시킬 수 있는 배향막 러빙장치를 제공하는 데 있다. In addition, the present invention is to provide an alignment film rubbing device that can discharge the particles adsorbed by the rubbing cloth to the outside by forming a discharge means coupled to the opening of the cap formed on the upper end of the rubbing roller.

상기 목적을 달성하기 위하여, 본 발명에 따른 배향막 러빙장치는, 이송수단을 통해 전달되는 액정표시패널의 배향막을 러빙시키는 장치에 있어서, 중심축이 관통된 원통 형상의 회전롤러; 회전롤러의 외주면에 부착되며 배향막을 러빙시키는 러빙포; 회전롤러를 관통하는 중심축을 통해 상기 회전롤러와 결합되며 러빙포에 의해 흡착된 파티클을 외부로 배출시키는 개구부가 형성된 캡(cap); 및 캡(cap)에 형성된 배출구에 결합되며 상기 러빙포에 부착된 파티클을 흡착하여 외부로 배출시키는 배출수단을 구비한 것을 특징으로 한다.In order to achieve the above object, the alignment film rubbing device according to the present invention, the device for rubbing the alignment film of the liquid crystal display panel transmitted through the conveying means, the cylindrical roller having a central axis penetrated; A rubbing cloth attached to an outer circumferential surface of the rotating roller and rubbing the alignment film; A cap coupled to the rotating roller through a central axis passing through the rotating roller and having an opening for discharging particles adsorbed by the rubbing cloth to the outside; And a discharge unit coupled to the discharge port formed in the cap and adsorbing the particles attached to the rubbing cloth to discharge the particles to the outside.

여기서, 본 발명에 따른 배향막 러빙장치를 구성하는 캡(cap)은 러빙포와 배향막 사이에 발생되는 정전기를 외부로 방전시키기 위해 접지된 형상의 도전성 금속으로 구성된 것을 특징으로 한다.Here, the cap (cap) constituting the alignment film rubbing device according to the present invention is characterized by consisting of a conductive metal of the grounded shape to discharge the static electricity generated between the rubbing cloth and the alignment film to the outside.

또한, 본 발명에 따른 배향막 러빙장치를 구성하는 캡은 러빙포에 부착된 파티클을 배출수단으로 용이하게 배출시키기 위해 회전롤러를 따라 장방형으로 형성된 개구부를 갖는 것을 특징으로 한다.In addition, the cap constituting the alignment film rubbing device according to the invention is characterized in that it has an opening formed in a rectangular shape along the rotating roller in order to easily discharge the particles attached to the rubbing cloth to the discharge means.

또한, 본 발명에 따른 배향막 러빙장치를 구성하는 캡(cap)은 배향막에 형성된 파티클과 충돌하여 산개되는 러빙포를 정렬(aging)시키기 위한 트랙이 형성된 것을 특징으로 한다.In addition, the cap (cap) constituting the alignment film rubbing device according to the present invention is characterized in that a track for aging the rubbing cloth spread by colliding with particles formed on the alignment film is formed.

또한, 본 발명에 따른 배향막 러빙장치를 구성하는 배출수단은 러빙포에 부착된 티클을 캡(cap)의 배출구를 통해 진공 흡입하는 진공펌프인 것을 특징으로 한다.In addition, the discharging means constituting the alignment film rubbing device according to the invention is characterized in that the vacuum pump for vacuum suction the tickle attached to the rubbing cloth through the outlet of the cap (cap).

상기 목적 외에 본 발명의 다른 목적 및 특징들은 첨부도면을 참조한 실시예에 대한 설명을 통하여 명백하게 드러나게 될 것이다.Other objects and features of the present invention in addition to the above objects will become apparent from the description of the embodiments with reference to the accompanying drawings.

이하, 첨부도면을 참조하여 본 발명에 따른 배향막 러빙장치에 대한 바람직한 실시예를 설명한다.Hereinafter, a preferred embodiment of the alignment film rubbing device according to the present invention with reference to the accompanying drawings.

먼저, 도 6 및 도 7을 참조하여 본 발명에 따른 배향막 러빙장치의 구성 및 동작을 상세하게 설명한다. 여기서, 도 6는 본 발명에 따른 배향막 러빙장치의 사시도 이고, 도 7은 본 발명에 따른 배향막 러빙장치의 분해 사시도 이다.First, the configuration and operation of the alignment film rubbing device according to the present invention will be described in detail with reference to FIGS. 6 and 7. 6 is a perspective view of the alignment film rubbing device according to the present invention, and FIG. 7 is an exploded perspective view of the alignment film rubbing device according to the present invention.

도 6 및 도 7을 참조하면, 본 발명에 따른 기판상의 배향막에 액정을 배향시키기 위한 배향홈을 형성하는 러빙장치(100)는, 중심축(110)이 삽입되는 관통홀(120)이 형성된 회전롤러(130)와, 회전롤러(130)의 원주면을 따라 부착되며 이송장치(200)를 통해 이송되는 기판(300)상에 형성된 배향막(310)을 러빙시키는 러빙포(140)와, 상기 중심축(110)을 통해 회전롤러(130)의 상측에 결합되며 러빙포(140)에 의해 발생되는 정전기를 방전시키는 캡(cap)(150)과, 캡(cap)(150)의 상측에 형성된 배출구(151)에 결합되며 러빙포(140)에 부착된 이물질(particle)(400)을 흡착하여 외부로 배출시키는 배출수단(160) 및 회전롤러(130)의 중심축(110)에 결합되어 회전롤러(130)를 지지 및 회전시키는 지지부(170)를 구비한다.6 and 7, the rubbing device 100 forming an alignment groove for aligning a liquid crystal in an alignment film on a substrate according to the present invention includes a rotation in which a through hole 120 into which a central axis 110 is inserted is formed. A rubbing cloth 140 which rubs the roller 130, the alignment film 310 formed on the substrate 300 which is attached along the circumferential surface of the rotary roller 130 and is conveyed through the transfer device 200, and the center A cap 150 coupled to an upper side of the rotating roller 130 through a shaft 110 and discharging static electricity generated by the rubbing cloth 140, and an outlet formed on an upper side of the cap 150. The rotary roller is coupled to the central shaft 110 of the discharge means 160 and the rotary roller 130 to adsorb the foreign matter (particles) 400 attached to the rubbing cloth 140 and discharged to the outside is coupled to the 151 And a support 170 for supporting and rotating the 130.

여기서, 회전롤러(130)는 중심축(110)이 삽입되는 관통홀(120)이 형성된 원 통 형상으로 구성되며, 중심축(110)에 연결되는 지지부(170)에 의해 이송장치(200)를 통해 이송되는 기판(200)의 배향막(300)과 러빙포(140)를 개재하여 접촉된 상태로 현가되어 있다.Here, the rotary roller 130 is configured in a cylindrical shape having a through hole 120 is inserted into the central shaft 110, the transfer device 200 by the support portion 170 is connected to the central shaft 110 Suspended in contact with the alignment layer 300 and the rubbing cloth 140 of the substrate 200 to be transferred through.

이때, 이송장치(200)를 통해 배향막(310)이 형성된 기판(300)이 이송됨에 따라, 회전롤러(130)는 이송되는 기판(300)에 의해 야기되는 회전력에 의해 소정 방향으로 회전함으로써, 이송장치(200)를 통해 이송되는 기판(300)의 배향막(310)을 러빙시키기 위한 러빙력을 러빙포(140)에 전달한다.At this time, as the substrate 300 on which the alignment layer 310 is formed is transferred through the transfer apparatus 200, the rotary roller 130 rotates in a predetermined direction by a rotational force caused by the substrate 300 to be transferred, thereby transferring the substrate 300. The rubbing force for rubbing the alignment layer 310 of the substrate 300 transferred through the apparatus 200 is transmitted to the rubbing cloth 140.

러빙포(140)는 회전롤러(130)의 외주면에 부착되어 회전롤러(130)의 위치 및 회전력에 따라 발생되는 러빙력에 의해 이송장치(200)로부터 이송되는 기판(300)의 배향막(310)을 러빙시킨다. 이때, 배향막(310)에는 러빙포(140)에 의한 러빙공정에 의해 소정 방향으로 액정분자를 배향시키는 배향홈이 형성된다The rubbing cloth 140 is attached to the outer circumferential surface of the rotary roller 130 and the alignment film 310 of the substrate 300 to be transferred from the transfer device 200 by the rubbing force generated according to the position and rotational force of the rotary roller 130 Rub the In this case, an alignment groove for aligning the liquid crystal molecules in a predetermined direction is formed in the alignment layer 310 by a rubbing process by the rubbing cloth 140.

캡(cap)(150)은 회전롤러(130)의 관통홀(120)에 삽입되는 중심축(110)을 통해 회전롤러(130)의 상측에 결합된다.Cap 150 is coupled to the upper side of the rotary roller 130 through the central axis 110 is inserted into the through-hole 120 of the rotary roller 130.

이때, 회전롤러(130)의 상측에 결합되는 캡(cap)(150)은, 도 6 및 도 7에 도시된 바와 같이, 이송수단을(200) 통해 이송되는 기판(300)의 배향막(310)에 대한 러빙 공정 시에 러빙포(140)와 배향막(310) 사이에 발생되는 정전기를 외부로 방전시키기 위해 접지된 형태를 갖는 도전성 금속으로 구성되어 있다.At this time, the cap (150) coupled to the upper side of the rotary roller 130, as shown in Figures 6 and 7, the alignment film 310 of the substrate 300 is transferred through the transfer means 200 It is made of a conductive metal having a form that is grounded to discharge the static electricity generated between the rubbing cloth 140 and the alignment layer 310 to the outside during the rubbing process.

따라서, 캡(cap)(150)에 의해 러빙포(140)와 배향막(310) 사이에 발생되는 정전기를 외부로 방전시킴에 따라, 러빙공정시에 발생되는 정전기에 의한 신호라인 또는 구동회로의 오동작을 방지할 수 있다.Accordingly, as the static electricity generated between the rubbing cloth 140 and the alignment layer 310 is discharged to the outside by a cap 150, a malfunction of the signal line or the driving circuit due to the static electricity generated during the rubbing process is caused. Can be prevented.

또한, 캡(cap)(150)은 상측에 러빙포(140)에 의해 흡착된 이물질(400)을 배출시키는 배출수단(170)이 결합되는 배출구(151)가 형성되어 있다. 이때, 도 8a에 도시된 바와 같이 캡(cap)(150)의 상측에 형성된 배출구(151)는 러빙포(140)에 부착된 이물질(400)을 배출수단(170)으로 효과적으로 배출시키기 위해 회전롤러(130)를 따라 장방향으로 형성되어 있다.In addition, the cap 150 has a discharge port 151 is coupled to the discharge means 170 for discharging the foreign matter 400 adsorbed by the rubbing cloth 140 on the upper side. At this time, the discharge port 151 formed on the upper side of the cap (150) as shown in Figure 8a is a rotary roller to effectively discharge the foreign matter 400 attached to the rubbing cloth 140 to the discharge means 170 It is formed along the 130 in the longitudinal direction.

또한, 캡(cap)(150)의 내부에는 기판(300)에 형성된 이물질(400)에 의해 산포 된 러빙포(140)를 일정하게 정렬(aging)시키기 위한 트랙(152)이 형성되어 있다. 이때, 도 8b에 도시된 바와 같이 캡(cap)(150)의 내부에 형성된 트랙(152)은 이물질과 충돌하여 산포된 러빙포(140)를 일정하게 정렬(aging)시키는 역할을 수행한다.In addition, a track 152 is formed in the cap 150 to uniformly arrange the rubbing cloth 140 scattered by the foreign matter 400 formed on the substrate 300. In this case, as shown in FIG. 8B, the track 152 formed inside the cap 150 collides with the foreign matter to uniformly arrange the scattered rubbing cloth 140.

이를 보다 구체적으로 설명하면, 회전롤러(130)의 회전에 연동하여 러빙포(140)가 이송수단(200)에 의해 이송되는 기판(300)의 배향막(310)을 러빙하는 경우, 도 9의 영역(B)에 도시된 바와 같이, 러빙포(140)가 배향막(310)에 존재하는 이물질(400)과 충돌함에 따라 산포되는 경우가 발생한다. 이때, 러빙포(140)가 산포된 상태로 배향막(310)을 러빙하는 경우 배향막(310)에 균일한 러빙력을 제공하지 못하여 콘트라스트비를 저하시킨다.In more detail, when the rubbing cloth 140 rubs the alignment film 310 of the substrate 300 transferred by the transfer means 200 in conjunction with the rotation of the rotary roller 130, the area of FIG. As shown in (B), when the rubbing cloth 140 collides with the foreign matter 400 present in the alignment layer 310, a scattering occurs. In this case, when rubbing the alignment layer 310 in a state in which the rubbing cloth 140 is dispersed, the uniform ratio may not be provided to the alignment layer 310, thereby reducing the contrast ratio.

따라서, 상술한 바와 같이 러빙포(140)가 이물질에 의해 산포된 경우, 캡(cap)(150)의 내부면에 형성된 트랙(152)은 산포된 러빙포 영역(A)를 실시간으로 정렬(aging)시킴으로써 러빙포(140)에 균일한 러빙력을 유지시킨다.Therefore, as described above, when the rubbing cloth 140 is dispersed by the foreign matter, the track 152 formed on the inner surface of the cap 150 may arrange the scattered rubbing area A in real time. By maintaining the uniform rubbing force to the rubbing cloth 140.

배출수단(160)은 캡(cap)(150)의 상면에 형성된 배출구(151)에 삽입되며 러 빙포(140)에 부착된 이물질(400)을 진공 흡착하여 외부로 배출시키는 역할을 수행하는 것으로서, 보다 구체적으로는 진공펌프이다.Discharge means 160 is inserted into the discharge port 151 formed on the upper surface of the cap (cap) 150 serves to discharge the outside by adsorbing the foreign matter 400 attached to the rubbing cloth 140, More specifically, it is a vacuum pump.

즉, 회전롤러(130)의 외주면에 부착된 러빙포(140)가 배향막(310)을 러빙하는 동안에 배향막(310)에 존재하는 이물질(400)이 부착된다. 이때, 러빙포(140)에 이물질(400)이 부착된 상태로 기판(300)상에 형성된 배향막(310)을 러빙하는 경우 이물질(400)에 의해 배향막(310) 상에 스크래치 등이 발생된다.That is, while the rubbing cloth 140 attached to the outer circumferential surface of the rotating roller 130 rubs the alignment layer 310, the foreign matter 400 existing in the alignment layer 310 is attached. At this time, when rubbing the alignment layer 310 formed on the substrate 300 in a state in which the foreign matter 400 is attached to the rubbing cloth 140, scratches or the like are generated on the alignment layer 310 by the foreign matter 400.

상술한 바와 같이 러빙포(140)에 부착된 이물질(400)에 의한 배향막(310) 불량을 방지하기 위해, 도 10에 도시된 바와 같이, 배출수단(160)은 배향막(310)을 러빙한 러빙포(140)에 부착된 이물질(400)을 캡(cap)(150)의 상측에 형성된 배출구(151)를 통해 진공 흡착하여 외부로 배출시키는 역할을 수행한다. 따라서, 러빙포(140)에 부착된 이물질(400)에 의해 배향막(310)에 발생되는 스크래치 등과 같은 불량을 방지한다.As described above, in order to prevent defects of the alignment layer 310 due to the foreign matter 400 attached to the rubbing cloth 140, as illustrated in FIG. 10, the discharging means 160 rubs the rubbing of the alignment layer 310. The foreign substance 400 attached to the cloth 140 serves to discharge the outside by vacuum adsorption through the outlet 151 formed on the upper side of the cap (150). Therefore, defects such as scratches generated in the alignment layer 310 by the foreign matter 400 attached to the rubbing cloth 140 are prevented.

지지부(170)는 회전롤러(130)의 관통홀(110)에 삽입되는 중심축(120)을 통해 회전롤러의 양측단에 접속된다. 이때, 지지부(170)는 소정의 지지장치(미도시)에 연결되어 회전롤러(130)를 지상에 지지 및 현가시킨다.The support part 170 is connected to both ends of the rotating roller through the central shaft 120 inserted into the through hole 110 of the rotating roller 130. At this time, the support unit 170 is connected to a predetermined support device (not shown) to support and suspend the rotating roller 130 on the ground.

이때, 이송장치(200)를 통해 배향막(310)이 형성된 기판(300)이 이송되는 경우, 지지부(160)는 이송되는 기판(300)에 연동하여 회전롤러(130)를 소정 방향으로 회전시키는 역할을 또한 수행한다.In this case, when the substrate 300 on which the alignment layer 310 is formed is transferred through the transfer apparatus 200, the support unit 160 rotates the rotating roller 130 in a predetermined direction in association with the substrate 300 to be transferred. Also performs.

상술한 바와 같이, 본 발명에 따른 배향막 러빙장치는 러빙롤러의 상단부에 접지된 형태의 도전성 금속으로 구성된 캡을 형성함으로써, 러빙포에 의해 발생되는 정전기를 외부로 방전시킬 수 있다는 효과를 갖는다.As described above, the alignment film rubbing device according to the present invention has the effect of discharging the static electricity generated by the rubbing cloth to the outside by forming a cap made of a conductive metal grounded on the upper end of the rubbing roller.

또한, 본 발명은 러빙롤러의 상단에 형성된 캡의 내면에 트랙을 형성함으로써, 배향막을 러빙시에 산개된 러빙포를 실시간으로 정렬(aging)시킬 수 있다는 효과를 갖는다.In addition, the present invention has the effect that by forming a track on the inner surface of the cap formed on the upper end of the rubbing roller, the rubbing cloth spread out at the time of rubbing the alignment film in real time.

또한, 본 발명은 러빙롤러의 상단에 형성된 캡의 개구부에 결합되는 배출수단을 형성함으로써, 러빙포에 의해 흡착된 파티클을 외부로 배출시켜 파티클에 의해 배향막에 형성되는 스크레치를 방지할 수 있다는 효과를 갖는다.In addition, the present invention by forming the discharge means coupled to the opening of the cap formed on the upper end of the rubbing roller, by discharging the particles adsorbed by the rubbing cloth to the outside to prevent the scratches formed in the alignment film by the particles Have

이상 설명한 내용을 통해 당업자라면 본 발명의 기술사상을 일탈하지 아니하는 범위에서 다양한 변경 및 수정이 가능함을 알 수 있을 것이다. 따라서, 본 발명의 기술적 범위는 명세서의 상세한 설명에 기재된 내용으로 한정되는 것이 아니라 특허 청구의 범위에 의해 정하여져야만 할 것이다.Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (6)

이송장치를 통해 이송되는 기판상에 형성된 배향막을 러빙시키는 장치에 있어서, An apparatus for rubbing an alignment film formed on a substrate to be conveyed through a conveying apparatus, 중심축이 삽입되는 관통홀이 형성된 회전롤러;A rotating roller having a through hole in which a central axis is inserted; 상기 회전롤러의 원주면에 부착되어 상기 배향막을 러빙시키는 러빙포;A rubbing cloth attached to the circumferential surface of the rotating roller to rub the alignment layer; 상기 중심축을 통해 회전롤러와 결합되며 상기 러빙포에 의해 발생되는 정전기를 방전시키는 캡;A cap coupled to the rotating roller through the central axis to discharge static electricity generated by the rubbing cloth; 상기 캡의 상측면에 형성된 배출구에 접속되며 러빙포에 부착된 이물질을 진공흡착하여 외부로 배출시키는 배출수단; 및 A discharge means connected to a discharge port formed on an upper surface of the cap and discharging the foreign matter attached to the rubbing cloth to be discharged to the outside; And 상기 회전롤러 및 캡을 결합시키는 중심축에 연결되며 상기 회전롤러를 지지및 회전시키는 지지부를 구비한 것을 특징으로 하는 배향막 러빙장치.And a support part connected to a central axis for coupling the rotating roller and the cap to support and rotate the rotating roller. 제 1 항에 있어서,The method of claim 1, 상기 회전롤러와 캡을 결합시키는 중심축은 상기 관통홀에 삽입되는 원형바인 것을 특징으로 하는 배향막 러빙장치.The central axis for coupling the rotary roller and the cap is an alignment film rubbing device, characterized in that the circular bar is inserted into the through hole. 제 1 항에 있어서, The method of claim 1, 상기 캡은 러빙포에 의해 발생되는 정전기를 방전시키기 위해 접지된 형상의 도전성 금속으로 형성된 것을 특징으로 하는 배향막 러빙장치.And the cap is formed of a conductive metal of a grounded shape to discharge static electricity generated by the rubbing cloth. 제 1 항에 있어서,The method of claim 1, 상기 캡에 형성된 개구부는 상기 회전롤러를 따라 장방형으로 형성된 것을 특징으로 하는 배향막 러빙장치.The opening formed in the cap is an alignment film rubbing device, characterized in that formed in a rectangular along the rotating roller. 제 1 항에 있어서,The method of claim 1, 상기 캡의 내측면에는 배향막에 형성된 이물질에 의해 산포된 러빙포를 실시간으로 정렬(aging)시키는 트랙이 형성된 것을 특징으로 하는 배향막 러빙장치.Alignment film rubbing device, characterized in that the inner surface of the cap is formed with a track for aging the rubbing cloth scattered by the foreign matter formed in the alignment film in real time. 제 1 항에 있어서,The method of claim 1, 상기 배출수단은 러빙포에 부착된 이물질을 상기 캡의 개구부를 통해 진공 흡입하는 진공펌프인 것을 특징으로 하는 배향막 러빙장치.The discharge means is an alignment film rubbing device, characterized in that the vacuum pump for sucking the foreign matter attached to the rubbing cloth through the opening of the cap.
KR1020050124705A 2005-12-16 2005-12-16 Apparatus for rubbing an alignment layer of liquid display panel KR20070064119A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009096626A1 (en) * 2008-01-30 2009-08-06 Nexcomm Global Co., Ltd. Apparatus for removing inferiority of rubbing cloth
KR101134070B1 (en) * 2010-01-20 2012-04-16 주식회사 하이퍼플렉스 Cleaner of Rubbing Cloth for fabricating Rubbing Cloth
US8840533B2 (en) 2011-05-23 2014-09-23 Samsung Display Co., Ltd. Rubbing apparatus
KR101717443B1 (en) * 2015-10-02 2017-03-17 주식회사 포스코 Excessive coating prevention device of strip edge portion
CN110161727A (en) * 2018-02-13 2019-08-23 夏普株式会社 The manufacturing method of substrate for liquid crystal panel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009096626A1 (en) * 2008-01-30 2009-08-06 Nexcomm Global Co., Ltd. Apparatus for removing inferiority of rubbing cloth
KR100940917B1 (en) * 2008-01-30 2010-02-08 (주)넥스컴글로벌 A remotion device of badness for A rubbing cloth
KR101134070B1 (en) * 2010-01-20 2012-04-16 주식회사 하이퍼플렉스 Cleaner of Rubbing Cloth for fabricating Rubbing Cloth
US8840533B2 (en) 2011-05-23 2014-09-23 Samsung Display Co., Ltd. Rubbing apparatus
KR101717443B1 (en) * 2015-10-02 2017-03-17 주식회사 포스코 Excessive coating prevention device of strip edge portion
CN110161727A (en) * 2018-02-13 2019-08-23 夏普株式会社 The manufacturing method of substrate for liquid crystal panel

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