KR0134854Y1 - Orientation layer fabrication instrument - Google Patents
Orientation layer fabrication instrument Download PDFInfo
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- KR0134854Y1 KR0134854Y1 KR2019930024324U KR930024324U KR0134854Y1 KR 0134854 Y1 KR0134854 Y1 KR 0134854Y1 KR 2019930024324 U KR2019930024324 U KR 2019930024324U KR 930024324 U KR930024324 U KR 930024324U KR 0134854 Y1 KR0134854 Y1 KR 0134854Y1
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- ultraviolet
- ultraviolet rays
- glen
- condenser
- mercury lamp
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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
- G02F1/133788—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 light irradiation, e.g. linearly polarised light photo-polymerisation
-
- 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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- 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
대면적 자외선 조사가 가능한 배향막 제조장치가 제시되었다.An alignment film production apparatus capable of large-area ultraviolet irradiation has been proposed.
이 장치는 자외선을 발생시키는 스폿트형 수은램프와, 상기 수은램프로부터 발생된 자외선을 모으는 집광경과, 상기 집광경으로부터 모은 자외선을 일정방향으로 반사시키는 제1평면경과, 제1평면경에 의해 반사된 자외선을 집적시키는 집적기와, 상기 집적기를 통해 집적된 자외선을 선편광시키기 위한 글렌-톰슨 프리즘과, 상기 글렌톰슨 프리즘의 출력측에 위치된 셔터와, 상기 글렌-톰슨 프리즘에서 편광된 자외선을 다시 일정방향으로 반삭시키는 제2평면경과, 상기 제2평면경을 통과한 자외선을 확대시켜 유리기판상부에 형성된 광경화성 고분자 배향막에 조사시켜 배향시키는 콜리메이터 렌즈로 구성된다.The apparatus includes a spot-type mercury lamp for generating ultraviolet rays, a condenser for collecting ultraviolet rays generated from the mercury lamp, a first plane mirror for reflecting the ultraviolet rays collected from the condenser in a predetermined direction, and an ultraviolet ray reflected by the first plane mirror. An integrated integrator, a Glen-Thomson prism for linearly polarizing the ultraviolet light accumulated through the integrator, a shutter located at the output side of the Glen Thompson prism, and the ultraviolet-polarized light polarized by the Glen-Thomson prism again in a predetermined direction And a collimator lens for enlarging the second planar mirror and the ultraviolet light passing through the second planar mirror and irradiating the photocurable polymer alignment layer formed on the glass substrate to orient it.
Description
제1도는 본 고안에 대한 배향막 제조장치의 구성도.1 is a block diagram of an alignment film production apparatus according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 수은램프 2 : 집광경1: mercury lamp 2: condenser
3 : 제1평면경 4 : 집적기3: first plane mirror 4: integrator
5 : 글렌톰슨프리즘 6 : 셔터5: Glen Thompson prism 6: shutter
7 : 제2평면경 8 : 유리기판7 second plane mirror 8: glass substrate
9 : 배향막 10 : 콜지메이터 렌즈9: alignment film 10: collimator lens
본 고안은 배향막 제조장치에 관한 것으로, 특히 광경화성 고분자막에 선편광된 자외선(UV)을 조사하여 배향시키는 장치에 관한 것이다.The present invention relates to a device for producing an alignment film, and more particularly, to an apparatus for orienting by irradiating linearly polarized ultraviolet (UV) light on a photocurable polymer film.
종래 액정분자를 평면(planar)구조로 배향시키는 방법들로 몇 가지가 알려져 있다.There are several known methods for orienting liquid crystal molecules in a planar structure.
그 하나로서, 고분자 평면에 기계적 마찰(rubbing)에 의해서 규칙적인 마이크로 그루브(microgroove)를 형성시키고 그 마이크로 그루브들을 통해 액정분자들을 전체배향막인 표면에서 규칙적으로 배향시키는 방법이 있다.For example, there is a method of forming regular microgrooves by mechanical rubbing on the polymer plane and orienting liquid crystal molecules regularly on the surface of the entire alignment layer through the microgrooves.
여기에 사용되는 고분자로는 폴리이미드(polyimide)계나 폴리아미드(polyamide)계의 물질들이 널리 사용되고 있다.As the polymer used here, polyimide or polyamide-based materials are widely used.
또한, 전폴리머(Per-polymer)의 광 고분자화에 의한 배향막 제작방법도 알려져 있다.In addition, a method for producing an alignment film by photopolymerization of a per-polymer is also known.
이 방법에서 사용되는 전폴리머는 폴리비닐 알콜(polyvinyl alcohol : PVA)과 4-메톡시 신나믹산(4-methoxy cinnamic acid)의 반응에서 생성되는데 여기서 선편광된 자외선(UV)을 조사시키면 광 반응에 의해 크로스 링킹(cross-linking)된 배향막이 형성된다.The prepolymer used in this method is produced by the reaction of polyvinyl alcohol (PVA) and 4-methoxy cinnamic acid, where the linearly polarized ultraviolet (UV) radiation causes An alignment film that is cross-linked is formed.
이 배향막은 액정분자들을 원하는 방향으로 평면구조로 배향시킬 수 있다.This alignment film can orientate liquid crystal molecules in a planar structure in a desired direction.
그러나 위의 종래 방법들은 다음과 같은 문제점이 있었다.However, the above conventional methods have the following problems.
우선, 종래 기계적 마찰(rubbing)에 의한 배향막 형성방법에서 생기는 마이크로그루브들의 결함이 불규칙한 위상 왜곡(random phase distortion)과 광산란(light scattering)을 야기시키고 이 때문에 디스플레이의 특성에 나쁜 영향을 미치게 된다.First, defects in the microgrooves generated in the conventional method of forming an alignment layer by mechanical rubbing cause irregular phase distortion and light scattering, which adversely affects the characteristics of the display.
특히, 기계적 마찰시에 발생되는 정전기는 액티브 매트릭스 디스플레이(active matrix display)시 결함의 원인이 된다.In particular, static electricity generated during mechanical friction causes defects in active matrix displays.
또한 이 방법에 따르면 배향막 표면에서 국부적으로 다른 배향을 갖는 상태를 만들 수 없게 된다.In addition, according to this method, it becomes impossible to create a state having locally different orientation on the alignment film surface.
또한, PVCN-M(polyvinyl-4-methoxy cinnamate)전폴리머의 광 고분자화에 의해 생성되는 배향막은 낮은 열 안정성을 갖는다.In addition, the alignment film produced by photopolymerization of the polyvinyl-4-methoxy cinnamate (PVCN-M) prepolymer has low thermal stability.
만약 셀에 채워지는 네마틱(nematic)액정의 투명점(CP : clearing Point)이 50℃보다 높으면 50℃근처에서 평면구조의 변형이 발견된다.If the clearing point (CP) of the nematic liquid crystal filled in the cell is higher than 50 ° C, deformation of the planar structure is found near 50 ° C.
그리고 50℃보다 낮은 투명점을 갖는 액정이 사용된다면 등방성(isotropic)상 이상으로 열을 가하면 초기의 배향상태로 복원되지 않고 많은 디스크리네이션(disclination)이 나타나게 된다.If a liquid crystal having a transparent point lower than 50 ° C. is used, if a heat is applied above an isotropic phase, a large number of disclination appears without returning to an initial alignment state.
그래서 이러한 배향막을 사용한 디스플레이 소자는 높은 온도에서 사용할 수 없고 셀합착방법 또한 높은 온도에서 수행되는 통상의 방법을 사용할 수 없다.Therefore, the display element using such an alignment film cannot be used at high temperature, and the cell bonding method cannot also use a conventional method performed at high temperature.
본 고안은 위의 단점을 해소하기 위한 것으로서, 대면적을 균일하게 조사할 수 있도록 광경화성 고분자막에 선편광된 자외선을 조사하여 배향시키는 배향막 제조장치를 제공하는데 목적이 있다.The present invention aims to solve the above disadvantages, and an object of the present invention is to provide an alignment film manufacturing apparatus for orienting by irradiating linearly polarized ultraviolet rays to a photocurable polymer film so as to uniformly irradiate a large area.
제1도는 본 고안에 의한 배향막 제조장치의 구성을 나타내는 것으로서, 자외선을 발생시키는 스폿트형(spot type) 수은램프(1), 수은램프(1)로부터 나온 자외선을 모으는 집광경(2), 집광경(2)으로부터 모아진 자외선을 일정방향으로 반사시키는 제1평면경(3), 제1평면경(3)에 의해 반사된 자외선을 집적시키는 집적기(integrator)(4), 집적기(4)를 통해 집적된 자외선을 선편광시키기 위한 글렌-톰슨 프리즘(glan-thomson prism)(5), 글렌톰슨프리즘(5)의 출력측에 위치된 셔터(6), 편광된 자외선을 다시 일정방향으로 반사시키는 제1평면경(7), 제2평면경(7)을 통과한 자외선을 확대시켜 이를 유리기판(8)상부에 형성된 광경화성 고분자로 된 배향막(a)에 조사시키는 콜리메이터 렌즈(collimator lens)(10)로 구성된 것이다.1 shows a configuration of an alignment film production apparatus according to the present invention, and includes a spot type mercury lamp 1 for generating ultraviolet rays, a condenser 2 for collecting ultraviolet rays from the mercury lamp 1, and a condenser 2 Ultraviolet rays collected through the integrator 4 and the integrator 4 for integrating the ultraviolet rays reflected by the first flat mirror 3 Glen-thomson prism 5 for linearly polarizing light, shutter 6 positioned at the output side of glenthompson prism 5, and first planar mirror 7 reflecting polarized ultraviolet rays back in a predetermined direction And a collimator lens 10 that enlarges the ultraviolet light passing through the second flat mirror 7 and irradiates it to the alignment layer a of the photocurable polymer formed on the glass substrate 8.
이때, 기존노광장치의 광학부품을 모두 자외선용으로 대치된다.At this time, all of the optical parts of the existing exposure apparatus is replaced for the ultraviolet.
위의 장치는 최종적으로 콜리메이터 렌즈(10)를 통과하여 확대된 자외선을 유리기판(8)상의 배향막(9)에 조사하여 그 배향막을 배향시킨다.The above apparatus finally irradiates the alignment film 9 on the glass substrate 8 with the ultraviolet rays enlarged through the collimator lens 10 to orient the alignment film.
위와 같이 본 고안은 액정디스플레이 소자의 배향막 제조장치에 관한 것으로서, 기존의 대면적 노광장치에 자외선용 편광기를 두어 대면적 선편광 자외선 조사를 실현함으로써, 종래 자외선 조사면적이 작았던 문제점을 해결할 수 있게 된다.As described above, the present invention relates to a device for manufacturing an alignment layer of a liquid crystal display device, and realizes a large area linearly polarized ultraviolet irradiation by placing a polarizer for ultraviolet rays in a conventional large area exposure apparatus, thereby solving a problem of a small area of conventional ultraviolet irradiation. .
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930024324U KR0134854Y1 (en) | 1993-11-18 | 1993-11-18 | Orientation layer fabrication instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019930024324U KR0134854Y1 (en) | 1993-11-18 | 1993-11-18 | Orientation layer fabrication instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR950015151U KR950015151U (en) | 1995-06-17 |
| KR0134854Y1 true KR0134854Y1 (en) | 1999-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019930024324U KR0134854Y1 (en) | 1993-11-18 | 1993-11-18 | Orientation layer fabrication instrument |
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| KR (1) | KR0134854Y1 (en) |
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1993
- 1993-11-18 KR KR2019930024324U patent/KR0134854Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR950015151U (en) | 1995-06-17 |
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