KR101396108B1 - Alignment layer for Liquid Crystal Display and Light Aligning Method thereof - Google Patents

Alignment layer for Liquid Crystal Display and Light Aligning Method thereof Download PDF

Info

Publication number
KR101396108B1
KR101396108B1 KR1020070141116A KR20070141116A KR101396108B1 KR 101396108 B1 KR101396108 B1 KR 101396108B1 KR 1020070141116 A KR1020070141116 A KR 1020070141116A KR 20070141116 A KR20070141116 A KR 20070141116A KR 101396108 B1 KR101396108 B1 KR 101396108B1
Authority
KR
South Korea
Prior art keywords
dianhydride
alt
polyimide
oxydianiline
meridian
Prior art date
Application number
KR1020070141116A
Other languages
Korean (ko)
Other versions
KR20090072871A (en
Inventor
우정원
Original Assignee
엘지디스플레이 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지디스플레이 주식회사 filed Critical 엘지디스플레이 주식회사
Priority to KR1020070141116A priority Critical patent/KR101396108B1/en
Publication of KR20090072871A publication Critical patent/KR20090072871A/en
Application granted granted Critical
Publication of KR101396108B1 publication Critical patent/KR101396108B1/en

Links

Images

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/54—Additives having no specific mesophase characterised by their chemical composition
    • C09K19/56—Aligning agents
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0257—Reduction of after-image effects

Abstract

본 발명은 배향막과 그 광 배향방법에 관한 것으로, 1,2,3,4-시클로부탄테트라카르복실산 2무수물(Cyclobutane-1,2,3,4-tetracarboxylic dianhydride, CBDA)를 포함한 표면층과, 상기 표면층과 기판 사이에 위치하고 피로멜리틱디언하이드리드(Pyromellitic dianhydride) 또는, 사이클로헥산디언하이드리드(Cyclohexanedianhydride) 중 어느 하나를 포함한 벌크층을 포함한다. The present invention relates to an alignment layer and a method of aligning the same. More particularly, the present invention relates to an alignment layer comprising a surface layer containing 1,2,3,4-cyclobutane-tetracarboxylic dianhydride (CBDA) And a bulk layer disposed between the surface layer and the substrate and including any one of pyromellitic dianhydride or cyclohexanedianhydride.

Description

액정표시장치의 배향막과 그 광 배향방법{Alignment layer for Liquid Crystal Display and Light Aligning Method thereof}[0001] The present invention relates to an alignment layer of a liquid crystal display device and an optical alignment method thereof,

본 발명은 액정표시장치에서 액정분자들의 프리틸트를 설정하기 위한 배향막과 그 광 배향방법에 관한 것이다. The present invention relates to an alignment film for setting pre-tilt of liquid crystal molecules in a liquid crystal display and a method of aligning the alignment film.

액티브 매트릭스(Active Matrix) 구동방식의 액정표시장치는 스위칭 소자로서 박막트랜지스터(Thin Film Transistor : 이하 "TFT"라 함)를 이용하여 화상을 표시하고 있다. 이 액정표시장치는 음극선관(Cathode Ray Tube, CRT)에 비하여 소형화가 가능하여 휴대용 정보기기, 사무기기, 컴퓨터 등에서 표시기에 응용됨은 물론, 텔레비젼에도 응용되어 빠르게 음극선관을 대체하고 있다. A liquid crystal display device of an active matrix driving system displays an image using a thin film transistor (hereinafter referred to as "TFT") as a switching element. This liquid crystal display device can be downsized as compared with a cathode ray tube (CRT), and is applied to a display device in a portable information device, an office machine, a computer, etc., and is rapidly applied to a television, thereby rapidly replacing a cathode ray tube.

액정표시장치의 제조공정에서, 배향막의 제조공정은 폴리이미드 등의 유기막을 러빙포로 러빙하여 배향막을 형성한다. 이러한 러빙처리는 러빙포에 의한 오염 이 많고, 러빙에 의해 TFT, 컬러필터 등의 화소 어레이 소자들이형성된 기판에 정전기를 유발하여 소자에 데미지를 초래하고, 생산성을 떨어뜨리고 있다. In a manufacturing process of a liquid crystal display device, an alignment film is formed by rubbing an organic film such as polyimide into a rubbing cloth. Such rubbing treatment is highly contaminated by rubbing cloth, and rubbing causes static electricity to be generated on a substrate on which pixel array elements such as a TFT and a color filter are formed, causing damage to the element and deteriorating the productivity.

이러한 러빙방법의 문제를 개선하기 위하여, 비접촉 액정 배향 기술이 제안되고 있고, 그 중 하나로 광배향 처리가 알려져 있다. 광배향 처리는 투명 기판 상에 형성된 유기 배향막에 편광 자외선을 조사하여 그 유기 배향막을 구성하는 분자에 자외선의 편광 방향에 따른 화학변화를 일으키게 해 그것에 의해 유기 배향막에 액정 배향의 방향성과 프리틸트각을 설정한다. 따라서, 광배향 처리는 러빙에 의한 오염이나 화소 어레이 소자에 대한 정전 데미지를 줄일 수 있고 또한 불량율을 낮추어 생산성을 높일 수 있다. In order to solve the problem of the rubbing method, a non-contact liquid crystal alignment technique has been proposed, and a photo-alignment process is known as one of them. In the photo alignment treatment, polarized ultraviolet rays are irradiated on an organic alignment film formed on a transparent substrate to cause a chemical change according to the polarization direction of ultraviolet rays to molecules constituting the organic alignment film, thereby causing the organic alignment film to have a directionality of liquid crystal alignment and a pretilt angle Setting. Therefore, the photo-alignment treatment can reduce contamination by rubbing and electrostatic damage to the pixel array device, and also can reduce the defective rate and increase the productivity.

그런데 광배향 처리는 많은 장점에도 불구하고 실용화되지 않고 있다. 광배향 처리를 한 유기 배향막이 형성된 액정표시장치에서 동일 화상을 장시간 표시하고 그 화상의 표시를 멈추어도 표시되었던 화상의 잔상이 남는다. 이러한 현상의 원인은 광배향 처리로 인하여 유기 배향막의 화학적, 물리적 결함이 초래되었기 때문이다. 이를 도 1을 결부하여 설명하면, 기판(11) 상에 폴리이미드(Polyimide) 계열의 1,2,3,4-시클로부탄테트라카르복실산 2무수물(Cyclobutane-1,2,3,4-tetracarboxylic dianhydride, CBDA)을 코팅하여 유기막(12)을 형성하고, 그 유기막에 편광 자외선(UV)을 조사하면 그 유기막의 표면 뿐만 아니라 그 아래의 벌크층(bulk)까지 UV 편광에 반응한다. CBDA는 광에 노출되면 광반응에 의해 분자 구조의 링이 깨지면서 그 구조가 변화된다. 이러한 CBDA의 화학적 변화에 의해, 유기막(12)의 표면은 배향 처리면이 되나 그 아래의 벌크층은 결함이 발생된다. 이러한 벌크층의 결함은 배향 처리면을 안정하게 지지하지 못하기 때문에 액정의 배향을 불균일하게 하고 잔상의 원인으로 작용한다. However, the photo-alignment process has not been put to practical use despite its many advantages. The same image is displayed for a long time in the liquid crystal display device having the organic alignment film subjected to the photo alignment treatment, and a residual image of the displayed image remains even if the display of the image is stopped. This phenomenon is caused by the chemical and physical defects of the organic alignment layer due to the photo alignment treatment. Referring to FIG. 1, a polyimide-based 1,2,3,4-cyclobutanetetracarboxylic dianhydride (Cyclobutane-1,2,3,4-tetracarboxylic acid dianhydride (CBDA) is coated to form an organic film 12. When the organic film 12 is irradiated with polarized ultraviolet light (UV), the organic film 12 reacts with UV polarization not only on the surface of the organic film but also on the bulk layer beneath it. When CBDA is exposed to light, its structure is changed by breaking the ring of molecular structure by photoreaction. Due to the chemical change of the CBDA, the surface of the organic film 12 becomes the surface to be oriented, but the bulk layer beneath it becomes defective. Such defects in the bulk layer can not stably support the alignment treatment surface, which makes the orientation of the liquid crystal uneven and acts as a cause of after-images.

본 발명은 상기 종래 기술의 문제점들을 해결하고자 안출된 발명으로써 광배향 처리된 유기 배향막의 벌크층을 안정화하여 광 배향처리의 신뢰성을 향상시키도록 한 액정표시장치의 배향막과 그 광 배향방법을 제공한다. The present invention provides an alignment layer of a liquid crystal display device and a method of aligning the same to stabilize a bulk layer of an organic alignment layer subjected to photo-alignment treatment to improve the reliability of the photo alignment process .

본 발명의 배향막은 1,2,3,4-시클로부탄테트라카르복실산 2무수물(Cyclobutane-1,2,3,4-tetracarboxylic dianhydride, CBDA)를 포함한 표면층과, 상기 표면층과 기판 사이에 위치하고 피로멜리틱디언하이드리드(Pyromellitic dianhydride) 또는, 사이클로헥산디언하이드리드(Cyclohexanedianhydride) 중 어느 하나를 포함한 벌크층을 포함한다. The orientation film of the present invention comprises a superficial layer containing 1,2,3,4-cyclobutane-tetracarboxylic dianhydride (CBDA) and a superficial layer containing 1,2,3,4-tetracarboxylic dianhydride (CBDA) And a bulk layer containing any one of pyromellitic dianhydride or cyclohexanedianhydride.

본 발명의 광 배향방법은 1,2,3,4-시클로부탄테트라카르복실산 2무수물(Cyclobutane-1,2,3,4-tetracarboxylic dianhydride, CBDA)를 포함한 고감도 재료와, 피로멜리틱디언하이드리드(Pyromellitic dianhydride) 또는, 사이클로헥산디언하이드리드(Cyclohexanedianhydride) 중 어느 하나를 포함한 저감도 재료의 혼합용액을 기판 상에 코팅하는 단계; 상기 혼합용액을 건조시켜 상기 고감도 재료와 상기 저감도 재료의 층 분리를 유도하여 기판 상에 유기막을 형성하는 단계; 및 상기 유기막 상에 편광 자외선을 조사하는 단계를 포함한다, The photo-alignment method of the present invention is characterized in that a high-sensitivity material including 1,2,3,4-cyclobutane-tetracarboxylic dianhydride (CBDA), a pyromellitic dianhydride Coating a mixed solution of a low-sensitivity material containing any one of pyromellitic dianhydride and cyclohexanedianhydride on a substrate; Drying the mixed solution to induce layer separation of the high-sensitivity material and the low-sensitivity material to form an organic film on the substrate; And irradiating polarized ultraviolet light onto the organic film,

본 발명의 실시예에 따른 액정표시장치의 배향막과 그 광 배향방법은 광분해가 쉽고 표면 에너지가 작은 고감도 재료와 상대적으로 광분해가 어렵고 표면 에너지가 큰 저감도 재료를 혼합한 다음, 그 혼합용액을 건조하는 과정에서 고감도 재료와 저감도 재료의 층분리를 유도함으로써 유기 배향막의 벌크층을 안정화하여 광 배향처리의 신뢰성을 향상시킬 수 있다. The alignment film and the photo-alignment method of the liquid crystal display according to the embodiment of the present invention are produced by mixing a high-sensitivity material which is easily photodegradable and has a small surface energy, a low-sensitivity material which is relatively difficult to be photodegraded and has a large surface energy, The layer separation of the high-sensitivity material and the low-sensitivity material is induced in the process of stabilizing the bulk layer of the organic alignment film, thereby improving the reliability of the photo-alignment process.

이하, 도 2 내지 도 7을 참조하여 본 발명의 바람직한 실시예에 대하여 설명하기로 한다. Hereinafter, preferred embodiments of the present invention will be described with reference to FIGS. 2 to 7. FIG.

도 5를 참조하면, 본 발명의 실시예에 따른 액정표시장치의 배향막(22)은 광감도가 높은 표면층(22A)과, 표면층(22A)에 비하여 광감도가 낮은 벌크층(22B)을 포함한다. Referring to FIG. 5, the alignment layer 22 of the liquid crystal display according to the embodiment of the present invention includes a surface layer 22A having a high photosensitivity and a bulk layer 22B having a lower photosensitivity than the surface layer 22A.

표면층(22A)은 폴리이미드 계열의 재료 중에서 자외선에 노출될 때 분자구조의 링이 깨지기 쉽고 표면 에너지가 작은 광분해성 고감도 재료로 형성된다. 벌크층(22B)은 폴리이미드 계열의 재료 중에서 분자구조의 링이 안정화된 분자구조를 갖고 있어 자외선에 노출되더라도 광분해가 어렵고 표면 에너지가 큰 저감도 재료로 형성된다. The surface layer 22A is formed of a polyimide-based material with a highly-sensitive photodegradable material having a ring of a molecular structure that is easily broken and has a small surface energy when exposed to ultraviolet rays. The bulk layer 22B has a molecular structure in which a ring of a molecular structure is stabilized in a polyimide-based material, and is formed of a low-sensitivity material that is difficult to be photodissociated and has a large surface energy even when exposed to ultraviolet rays.

배향막(22)에 자외선이 조사되면 표면층(22A)은 광분해가 되면서 배향처리되는 반면, 벌크층(22B)은 광분해가 미미하여 안정된 구조를 유지한다. When the alignment layer 22 is irradiated with ultraviolet rays, the surface layer 22A is subjected to alignment treatment while being photodecomposed, while the bulk layer 22B maintains a stable structure due to minimal photodegradation.

표면층(22A)의 재료는 광감도가 높은 폴리이미드 계열의 CBDA에 표면 에너지 가 작은 분자들이 결합된 재료들이다. 예를 들면, 표면층(22A)의 재료로는 도 3과 같이 광 감도가 높은 CBDA에 파라-페닐렌디아민(p-Phenylenediamine)이 결합된 사이클로부탄테트라카르복시디언하이드리드(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(1,4-aniline)]), CBDA에 디아미노디페닐메탄(4,4'-Diaminodiphenylmethane)이 결합된 사이클로부탄테트라카르복시디언하이드리드-메틸렌디아닐린(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(4,4'-methylenedianiline)]), CBDA에 아미노일라민(4'-amino[1,1'-biphenyl]-4-ylamine)이 결합된 사이클로부탄테트라카르복시디언하이드리드-바이페닐디아민(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(4,4'biphenyldiamine)]), CBDA에 옥시디아닐린(4,4'-Oxydianiline)이 결합된 사이클로부탄테트라카르복시디언하이드리드-옥시디아닐린(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(4,4'oxydianiline)]), CBDA에 디아미노벤조페논(4,4'-Diaminobenzophenone)이 결합된 사이클로부탄테트라카르복시디언하이드리드-바이페닐디아민(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(4,4'biphenyldiamine)], CBDA에 디아미노옥타플로러바이페닐(Diaminooctafluorobiphenyl)이 결합된 사이클로부탄테트라카르복시디언하이드리드-옥타플로러바이페닐디아민(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(2,2',3,3',5,5',6,6'-octafluoro-4,4'-biphenyldiamine)]), CBDA에 디아미노바이트리플로러바이페닐(Diamino-bitrifluoromethyl-biphenyl)이 결합된 사이클로부탄테트라카르복시디언하이드리드-디플로러메틸바이페 닐(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(2,2'trifluoromethyl-4,4'-biphenyl)]), CBDA에 디아미노디플로러바이페닐(Diaminodifluorobiphenyl)이 결합된 사이클로부탄테트라카르복시디언하이드리드-디플로러-바이페닐(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(2,2'-difluoro-4,4'-biphenyl)]) 중에서 선택 가능하다. The material of the surface layer 22A is a material in which molecules having small surface energy are bonded to CBDA having a high photosensitivity. For example, as a material of the surface layer 22A, as shown in FIG. 3, a polyimide: [(Cyclobutanetetracarboxylic dianhydride) compound in which p-phenylenediamine is bonded to CBDA having high photosensitivity, - alt - (1,4-aniline) ]), diaminodiphenyl methane in CBDA (4,4'-diaminodiphenylmethane) fitted with a cyclobutane tetracarboxylic carboxy Meridian hydride-methylenedianiline (Polyimide: [(Cyclobutanetetracarboxylic dianhydride) - alt - (4,4'-methylenedianiline) ]), the amino CBDA one suramin (4'-amino [1,1'-biphenyl ] -4-ylamine) fitted with a cyclobutane tetracarboxylic carboxy Meridian hydride-biphenyl Diamine (polyimide: [(Cyclobutanetetracarboxylic dianhydride) - alt - (4,4'biphenyldiamine)], and CBDA to which 4,4'-Oxydianiline is bonded. Polyimide: [(Cyclobutanetetracarboxylic dianhydride) - alt - (4,4'oxydianiline)]), CBDA Diamino benzophenone (4,4'-Diaminobenzophenone) fitted with a cyclobutane tetracarboxylic carboxy Meridian hydride-biphenyl diamine (Polyimide: [(Cyclobutanetetracarboxylic dianhydride) - alt - (4,4'biphenyldiamine)], in dia mino CBDA octahydro peulroreo biphenyl diamine (Polyimide - octahydro peulroreo biphenyl fitted with a cyclobutane tetracarboxylic carboxy Meridian hydride (Diaminooctafluorobiphenyl): [(Cyclobutanetetracarboxylic dianhydride ) - alt - (2,2 ', 3,3', 5,5 ', 6,6'-octafluoro-4,4'-biphenyldiamine)], CBDA with diamino-bitrifluoromethyl-biphenyl coupled to cyclobutanetetracarboxylic dianhydride-difluoromethylbiphenyl (Polyimide: [(Cyclobutanetetracarboxylic dianhydride) - alt - (2,2'trifluoromethyl-4,4'-biphenyl)]), in CBDA diaminodiphenyl peulroreo the combined biphenyl (Diaminodifluorobiphenyl) cyclobutane tetracarboxylic carboxy Meridian hydride - Di floride-biphenyl (Polyi mide: [(Cyclobutanetetracarboxylic dianhydride) - (2,2'-difluoro-4,4'-biphenyl) - alt] is able to employ).

벌크층(22B)의 재료는 광감도가 낮고 표면에너지가 낮은 폴리이미드 계열 재료로 선택된다. 분자구조에서 링이 구조적으로 안정화되고 표면에너지가 낮은 폴리이미드계열의 재료로는 도 4와 같이 피로멜리틱디언하이드리드(Pyromellitic dianhydride) 또는, 도 5와 같은 사이클로헥산디언하이드리드(Cyclohexanedianhydride) 등이 있다. 도 4를 참조하면, 벌크층(22B)의 재료로는 피로멜리틱디언하이드리드(Pyromellitic dianhydride)에 파라페닐렌디아민(p-Phenylenediamine)이 결합된 피로멜리틱디언하이드리드-아닐린(Polyimide:[(pyromellitic dianhydride)-alt-(1,4-aniline)]), 피로멜리틱디언하이드리드(Pyromellitic dianhydride)에 디아미노페닐메탄(4,4'-Diaminodiphenylmethane)이 결합된 피로멜리틱디언하이드리드-메틸렌디아닐린(Polyimide:[(pyromellitic dianhydride)-alt-(4,4'-methylenedianiline)]), 피로멜리틱디언하이드리드(Pyromellitic dianhydride)에 아미노일라민(4'-amino[1,1'-biphenyl]-4-ylamine)이 결합된 피로멜리틱디언하이드리드-바이페닐디아민(Polyimide:[(pyromellitic dianhydride)-alt-(4,4'-biphenyldiamine)]), 피로멜리틱디언하이드리드(Pyromellitic dianhydride)에 옥시디아닐린(4,4'- Oxydianiline)이 결합된 피로멜리틱디언하이드리드-옥시디아닐린(Polyimide:[(pyromellitic dianhydride)-alt-(4,4'oxydianiline)]이 선택될 수 있다. 또한, 분자구조에서 링이 구조적으로 안정화되고 표면에너지가 낮은 폴리이미드계열의 재료로는 도 5와 같이 사이클로헥산디안하이드리드(Cyclohexanedianhydride)에 파라페닐렌디아민(p-Phenylenediamine)이 결합된 사이클로헥산테트라카르복시-아닐린(Polyimide:[(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride)-alt-(1,4-aniline)]), 사이클로헥산디안하이드리드(Cyclohexanedianhydride)에 디아미노디페닐메탄(4,4'-Diaminodiphenylmethane )이 결합된 사이클로헥산테트라카르복시-메틸렌디아닐린(Polyimide:[(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride)-alt-(4,4'-methylenedianiline)]), 사이클로헥산디안하이드리드(Cyclohexanedianhydride)에 아미노일라민(4'-amino[1,1'-biphenyl]-4-ylamine )이 결합된 사이클로헥산테트라카르복시-바이페닐디아민(Polyimide:[(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride)-alt-(4,4'-biphenyldiamine)]), 사이클로헥산디안하이드리드(Cyclohexanedianhydride)에 옥시디아닐린(4,4'-Oxydianiline)이 결합된 사이클로헥산테트라카르복시-옥시디아닐린(Polyimide:[(1,2,4,5-cyclohexanetetracarboxylic dianhydride)-alt-(4,4'-oxydianiline)])이 선택될 수 있다. The material of the bulk layer 22B is selected as a polyimide-based material having a low photosensitivity and a low surface energy. As a polyimide-based material having a ring structurally stabilized in a molecular structure and having a low surface energy, pyromellitic dianhydride or cyclohexanedianhydride as shown in Fig. have. Referring to FIG. 4, the material of the bulk layer 22B may be a pyromellitic dianhydride (p-phenylenediamine) -containing polyimide [ (pyromellitic dianhydride) - alt - ( 1,4-aniline)]), pyromellitic Meridian hydride (pyromellitic dianhydride) to the diamino diphenyl methane (a 4,4'-Diaminodiphenylmethane) coupled pyromellitic Meridian hydride - methylenedianiline (Polyimide: [(pyromellitic dianhydride) - alt - (4,4'-methylenedianiline)]), pyromellitic Meridian amino days suramin (4'-amino [1,1'- the hydride (pyromellitic dianhydride) biphenyl] mellitic tick Meridian a hydride -4-ylamine) is coupled fatigue-biphenyl diamine (Polyimide: [(pyromellitic dianhydride) - alt - (4,4'-biphenyldiamine)]), pyromellitic Meridian hydride (pyromellitic dianhydride) and pyromellitic dianhydride-oxydianiline (4,4'-Oxydianiline) yromellitic dianhydride) - alt -. ( 4,4'oxydianiline)] may be selected In addition, the material of the ring is stabilized by structural low surface energy polyimide series in the molecular structure as shown in FIG cyclohexane dianhydride Hyde the para-phenylenediamine (p-phenylenediamine) is coupled to the lead (Cyclohexanedianhydride) cyclohexane tetra-carboxy-aniline (Polyimide: [(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride) - alt - (1,4-aniline) ), Cyclohexanedetracarboxylic acid (4,4'-diaminodiphenylmethane) bonded to cyclohexanedianhydride, and polyimide: [(1,2,4,5-cyclohexanetetracarboxylic acid dianhydride dianhydride) - alt - (a 4,4'-methylenedianiline)]), cyclohexane dianhydride hydride (Cyclohexanedianhydride) amino days suramin (4'-amino [1,1'-biphenyl ] -4-ylamine) coupled to Cyclohexanetetracarboxy-biphenyldiamine (Poly imide: [(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride) - alt - (4,4'-biphenyldiamine)]), oxydianiline (4,4'-Oxydianiline) in cyclohexane dianhydride hydride (Cyclohexanedianhydride) the combined cyclohexane tetra-carboxy-oxydianiline (Polyimide: [(1,2,4,5-cyclohexanetetracarboxylic dianhydride) - alt - (4,4'-oxydianiline)]) may be selected.

도 6은 표면층(22A)의 재료로 선택된 Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(2,2'- trifluoromethyl-4,4'-biphenyl)]-co-[(Cyclobutanetetracarboxylic dianhydride)-alt-(1,4-aniline)]과, 벌크층(22B)의 재료로 선택된 Polyimide:[(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride)-alt-(4,4'-methylenedianiline)]-co-[(pyromellitic dianhydride)-alt-(4,4'-oxydianiline)]의 분자 구조를 보여 주는 도면이다. 6 is selected as the material of the surface layer (22A) Polyimide: [(Cyclobutanetetracarboxylic dianhydride) - alt - (2,2'- trifluoromethyl-4,4'-biphenyl)] - co - [(Cyclobutanetetracarboxylic dianhydride) - alt - (1 , 4-aniline)], and Polyimide material is selected as the bulk layer (22B): [(1,2,4,5- cyclohexanetetracarboxylic dianhydride dianhydride) - alt - (4,4'-methylenedianiline)] - co - [( pyromellitic dianhydride) - alt - (4,4'-oxydianiline).

도 7은 본 발명의 실시예에 따른 배향막의 광배향방법을 보여 준다.7 shows a photo-alignment method of an alignment layer according to an embodiment of the present invention.

도 7을 참조하면, 탱크 내에 표면층(22A)의 재료로 선택된 고감도 재료와 벌크층(22B)의 재료로 선택된 저감도 재료가 혼합된 용액을 저장한다. 이 탱크 내에서 고감도 재료와 저감도 재료는 임의로 섞여 있다. 이 혼합용액을 기판(21) 상에 코팅하고 대략 40℃~100℃ 정도의 온도에서 혼합용액을 건조하면, 그 건조과정에서 표면 에너지가 큰 저감도 재료는 표면 에너지가 낮은 고감도 재료 아래에 배치되어 저감도 재료와 고감도 재료의 층이 분리되며 또한, 휘발성 용매들이 증발한다. Referring to Fig. 7, a solution mixed with a high-sensitivity material selected as a material of the surface layer 22A and a low-sensitivity material selected as a material of the bulk layer 22B is stored in the tank. In this tank, a high-sensitivity material and a low-sensitivity material are arbitrarily mixed. When the mixed solution is coated on the substrate 21 and the mixed solution is dried at a temperature of about 40 ° C to 100 ° C, a low-sensitivity material having a large surface energy is disposed under the high-sensitivity material having a low surface energy The layer of low-sensitivity material and the layer of high-sensitivity material are separated, and the volatile solvents evaporate.

이어서, 본 발명의 실시예에 따른 배향막의 광배향방법은 대략 200℃~250℃ 사이의 온도에서 층 분리된 고감도 재료와 저감도 재료를 경화시킨 후에 편광 자외선을 조사한다. 편광 자외선에 노출될 때, 표면층(22A)의 고감도 재료는 광분해되는 반면, 표면층(22A)과 기판(21) 사이의 벌크층(22B)을 이루는 저감도 재료는 광분해되지 않는다. 따라서, 벌크층(22B)은 결함이 발생되지 않으므로 구조적으로 안정한 상태를 유지하여 표면층(22A)을 지지한다. Next, in the method of photo-alignment of an alignment film according to an embodiment of the present invention, a polarized ultraviolet ray is irradiated after curing a layered high-sensitivity material and a low-sensitivity material at a temperature of about 200 ° C to 250 ° C. Sensitive material of the surface layer 22A is photolyzed while the low-sensitivity material constituting the bulk layer 22B between the surface layer 22A and the substrate 21 is not photolyzed. Therefore, the bulk layer 22B is free from defects, so that it remains structurally stable and supports the surface layer 22A.

이상 설명한 내용을 통해 당업자라면 본 발명의 기술사상을 일탈하지 아 니하는 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.It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the 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.

도 1은 종래의 배향막에서 광분해에 의해 초래되는 벌크층의 결함을 보여 주는 단면도. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing defects in a bulk layer caused by photodegradation in a conventional alignment film. FIG.

도 2는 본 발명의 실시예에 따른 액정표시장치의 배향막 구조를 보여 주는 단면도. 2 is a cross-sectional view showing an alignment film structure of a liquid crystal display device according to an embodiment of the present invention.

도 3은 표면층에 적용 가능한 재료의 예를 보여 주는 도면. 3 is a view showing an example of a material applicable to a surface layer;

도 4는 벌크층에 적용 가능한 재료의 예를 보여 주는 도면.Fig. 4 shows an example of a material applicable to a bulk layer. Fig.

도 5는 벌크층에 적용 가능한 재료의 다른 예를 보여 주는 도면. 5 is a view showing another example of a material applicable to a bulk layer.

도 6은 표면층의 재료와 벌크층의 재료를 보여 주는 도면. 6 is a view showing the material of the surface layer and the material of the bulk layer.

도 7은 본 발명의 실시예에 따른 배향막의 광 배향방법을 보여 주는 도면. 7 is a view showing a photo-alignment method of an alignment layer according to an embodiment of the present invention.

〈도면의 주요 부분에 대한 부호의 설명〉Description of the Related Art

21 : 기판 22 : 배향막21: substrate 22: alignment film

22A : 표면층 22B : 벌크층22A: surface layer 22B: bulk layer

Claims (4)

1,2,3,4-시클로부탄테트라카르복실산 2무수물(Cyclobutane-1,2,3,4-tetracarboxylic dianhydride, CBDA)를 포함한 표면층과,A surface layer containing 1,2,3,4-cyclobutanetetracarboxylic dianhydride (Cyclobutane-1,2,3,4-tetracarboxylic dianhydride, CBDA) 상기 표면층과 기판 사이에 위치하고 피로멜리틱디언하이드리드(Pyromellitic dianhydride) 또는, 사이클로헥산디언하이드리드(Cyclohexanedianhydride) 중 어느 하나를 포함한 벌크층을 포함하는 것을 특징으로 하는 액정표시장치의 배향막.And a bulk layer disposed between the surface layer and the substrate and including any one of pyromellitic dianhydride and cyclohexanedianhydride. 제 1 항에 있어서,The method according to claim 1, 상기 표면층은 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 파라-페닐렌디아민(p-Phenylenediamine)이 결합된 사이클로부탄테트라카르복시디언하이드리드(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(1,4-aniline)]), 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 디아미노디페닐메탄(4,4'-Diaminodiphenylmethane)이 결합된 사이클로부탄테트라카르복시디언하이드리드-메틸렌디아닐린(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(4,4'-methylenedianiline)]), 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 아미노일라민(4'-amino[1,1'-biphenyl]-4-ylamine)이 결합된 사이클로부탄테트라카르복시디언하이드리드-바이페닐디아민(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(4,4'biphenyldiamine)]), 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 옥시디아닐린(4,4'-Oxydianiline)이 결합된 사이클로부탄테트라카르복시디언하이드리드-옥시디아닐린(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(4,4'oxydianiline)]), 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 디아미노벤조페논(4,4'-Diaminobenzophenone)이 결합된 사이클로부탄테트라카르복시디언하이드리드-바이페닐디아민(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(4,4'biphenyldiamine)], 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 디아미노옥타플로러바이페닐(Diaminooctafluorobiphenyl)이 결합된 사이클로부탄테트라카르복시디언하이드리드-옥타플로러바이페닐디아민(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(2,2',3,3',5,5',6,6'-octafluoro-4,4'-biphenyldiamine)]), 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 디아미노바이트리플로러바이페닐(Diamino-bitrifluoromethyl-biphenyl)이 결합된 사이클로부탄테트라카르복시디언하이드리드-디플로러메틸바이페닐(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(2,2'trifluoromethyl-4,4'-biphenyl)]), 및 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 디아미노디플로러바이페닐(Diaminodifluorobiphenyl)이 결합된 사이클로부탄테트라카르복시디언하이드리드-디플로러-바이페닐(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(2,2'-difluoro-4,4'-biphenyl)]) 중에서 선택된 재료를 포함하고, The surface layer may be formed of a material selected from the group consisting of polyimide: [(Cyclobutanetetracarboxylic acid) [(Cyclobutanetetracarboxylic acid)] in which p-phenylenediamine is bonded to the 1,2,3,4-cyclobutanetetracarboxylic acid dianhydride dianhydride) - alt - (1,4- aniline)]), diamino-diphenylmethane (4,4'-diaminodiphenylmethane) to the 1,2,3,4-cyclobutane tetracarboxylic dianhydride (CBDA) is combined cyclobutane tetracarboxylic carboxy Meridian hydride-methylenedianiline (Polyimide: [(Cyclobutanetetracarboxylic dianhydride) - alt - (4,4'-methylenedianiline)]), the 1,2,3,4-cyclobutane tetracarboxylic acid Cyclobutanetetracarboxylic dianhydride - (Cyclobutanetetracarboxylic dianhydride) - (Cyclobutanetetracarboxylic dianhydride) - (4-amino [1,1'-biphenyl] -4-ylamine) alt - (4,4'biphenyldiamine)]), the 1,2,3,4-cyclobutane tetracarboxylic dianhydride (CBDA) oxy Dia Aniline (4,4'-Oxydianiline) fitted with a cyclobutane tetracarboxylic carboxy Meridian hydride-oxydianiline (Polyimide: [(Cyclobutanetetracarboxylic dianhydride) - alt - (4,4'oxydianiline)]), wherein the 1,2,3 (Cyclobutanetetracarboxylic dianhydride) -cyclobutanetetracarboxylic acid dianhydride (4,4'-Diaminobenzophenone) to which 4-cyclobutane tetracarboxylic acid dianhydride (CBDA) alt - (4,4'biphenyldiamine)], the 1,2,3,4-cyclobutane tetracarboxylic dianhydride (CBDA) to the diamino-octahydro peulroreo biphenyl (Diaminooctafluorobiphenyl) a cyclobutane tetracarboxylic carboxy Meridian Hyde bond Reed-octahydro peulroreo biphenyl diamine (Polyimide: [(Cyclobutanetetracarboxylic dianhydride) - alt - (2,2 ', 3,3', 5,5 ', 6,6'-octafluoro-4,4'-biphenyldiamine)]) , The 1,2,3,4-cyclobutane tetracarboxylic acid dianhydride (CBDA) was reacted with diaminobutylrifluorobiphenyl (Diamino- bitrifluoromethyl-biphenyl) fitted with a cyclobutane tetracarboxylic carboxy Meridian hydride-di-methyl-biphenyl-peulroreo (Polyimide: [(Cyclobutanetetracarboxylic dianhydride) - alt - (2,2'trifluoromethyl-4,4'-biphenyl)]), and the A method for producing cyclic butanetetracarboxylic dianhydride-difluorobiphenyl (Diimodifluorobiphenyl) conjugated with 1,2,3,4-cyclobutane tetracarboxylic acid dianhydride (CBDA) Cyclobutanetetracarboxylic dianhydride) - alt - (2,2'-difluoro-4,4'-biphenyl)], 상기 벌크층은 상기 피로멜리틱디언하이드리드(Pyromellitic dianhydride)에 파라페닐렌디아민(p-Phenylenediamine)이 결합된 피로멜리틱디언하이드리드-아닐린(Polyimide:[(pyromellitic dianhydride)-alt-(1,4-aniline)]), 상기 피로멜리틱디언하이드리드(Pyromellitic dianhydride)에 디아미노페닐메탄(4,4'-Diaminodiphenylmethane)이 결합된 피로멜리틱디언하이드리드-메틸렌디아닐린(Polyimide:[(pyromellitic dianhydride)-alt-(4,4'-methylenedianiline)]), 상기 피로멜리틱디언하이드리드(Pyromellitic dianhydride)에 아미노일라민(4'-amino[1,1'-biphenyl]-4-ylamine)이 결합된 피로멜리틱디언하이드리드-바이페닐디아민(Polyimide:[(pyromellitic dianhydride)-alt-(4,4'-biphenyldiamine)]), 상기 피로멜리틱디언하이드리드(Pyromellitic dianhydride)에 옥시디아닐린(4,4'-Oxydianiline)이 결합된 피로멜리틱디언하이드리드-옥시디아닐린(Polyimide:[(pyromellitic dianhydride)-alt-(4,4'oxydianiline)], 상기 사이클로헥산디언하이드리드(Cyclohexanedianhydride)에 파라페닐렌디아민(p-Phenylenediamine)이 결합된 사이클로헥산테트라카르복시-아닐린(Polyimide:[(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride)-alt-(1,4-aniline)]), 상기 사이클로헥산디언하이드리드(Cyclohexanedianhydride)에 디아미노디페닐메탄(4,4'-Diaminodiphenylmethane )이 결합된 사이클로헥산테트라카르복시-메틸렌디아닐린(Polyimide:[(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride)-alt-(4,4'-methylenedianiline)]), 상기 사이클로헥산디언하이드리드(Cyclohexanedianhydride)에 아미노일라민(4'-amino[1,1'-biphenyl]-4-ylamine )이 결합된 사이클로헥산테트라카르복시-바이페닐디아민(Polyimide:[(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride)-alt-(4,4'-biphenyldiamine)]), 및 상기 사이클로헥산디언하이드리드(Cyclohexanedianhydride)에 옥시디아닐린(4,4'-Oxydianiline)이 결합된 사이클로헥산테트라카르복시-옥시디아닐린(Polyimide:[(1,2,4,5-cyclohexanetetracarboxylic dianhydride)-alt-(4,4'-oxydianiline)]) 중에서 선택된 재료를 포함하는 것을 특징으로 하는 액정표시장치의 배향막.The bulk layer is p-phenylene diamine (p-Phenylenediamine) of pyromellitic Meridian hydride bonds to the pyromellitic Meridian hydride (Pyromellitic dianhydride) - aniline (Polyimide: [(pyromellitic dianhydride) - alt - (1, 4-aniline)], pyromellitic dianhydride-pyromellitic dianhydride to which 4,4'-Diaminodiphenylmethane is bonded to the pyromellitic dianhydride, dianhydride) - alt - (4,4'- methylenedianiline)]), one amino suramin (4'-amino [1,1'-biphenyl ] -4-ylamine) on the pyromellitic Meridian hydride (pyromellitic dianhydride) is The polyimide: [(pyromellitic dianhydride) - alt - (4,4'-biphenyldiamine)]], the pyromellitic dianhydride and oxydianiline ( Pyromellitic dianhydride-oxydianiline combined with 4,4'-oxydianiline (Polyimide: [(pyromell itic dianhydride) - alt - (4,4'oxydianiline )], the cyclohexane Meridian Hyde on paraphenylene lead (Cyclohexanedianhydride) diamine (p-Phenylenediamine) is a combined cyclohexane tetra-carboxy-aniline (Polyimide: [(1, 2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride) - alt - (1,4-aniline)]), the cycloalkyl in hexane Meridian hydride (Cyclohexanedianhydride) diamino-diphenylmethane (4,4'-diaminodiphenylmethane a) are combined cycle hexane tetra carboxy-methylenedianiline (Polyimide: [(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride) - alt - (4,4'-methylenedianiline)]), ylamino the cyclohexane Meridian hydride (Cyclohexanedianhydride) suramin (4'-amino [1,1'-biphenyl ] -4-ylamine) that combines the cyclohexane tetra-carboxy-biphenyl-diamine (Polyimide: [(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride) - alt - (4,4'-biphenyldiamine)], and the cyclohexane dianhydride hexanedianhydride) on oxydianiline (4,4'-Oxydianiline) fitted with a cyclohexane tetra-carboxy-oxydianiline (Polyimide: [(1,2,4,5-cyclohexanetetracarboxylic dianhydride) - alt - (4,4'- oxydianiline)]). < / RTI > 1,2,3,4-시클로부탄테트라카르복실산 2무수물(Cyclobutane-1,2,3,4-tetracarboxylic dianhydride, CBDA)를 포함한 고감도 재료와, 피로멜리틱디언하이드리드(Pyromellitic dianhydride) 또는, 사이클로헥산디언하이드리드(Cyclohexanedianhydride) 중 어느 하나를 포함한 저감도 재료의 혼합용액을 기판 상에 코팅하는 단계;Sensitive material including 1,2,3,4-cyclobutane-tetracarboxylic dianhydride (CBDA), and pyromellitic dianhydride or 1,2,3,4- Coating a mixed solution of a low-sensitivity material containing any one of cyclohexanedianhydride on a substrate; 상기 혼합용액을 건조시켜 상기 고감도 재료와 상기 저감도 재료의 층 분리를 유도하여 기판 상에 유기막을 형성하는 단계; 및Drying the mixed solution to induce layer separation of the high-sensitivity material and the low-sensitivity material to form an organic film on the substrate; And 상기 유기막 상에 편광 자외선을 조사하는 단계를 포함하는 것을 특징으로 하는 액정표시장치의 배향막의 광 배향방법.And irradiating the organic film with polarized ultraviolet light. 제 3 항에 있어서,The method of claim 3, 상기 고감도 재료는 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 파라-페닐렌디아민(p-Phenylenediamine)이 결합된 사이클로부탄테트라카르복시디언하이드리드(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(1,4-aniline)]), 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 디아미노디페닐메탄(4,4'-Diaminodiphenylmethane)이 결합된 사이클로부탄테트라카르복시디언하이드리드-메틸렌디아닐린(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(4,4'-methylenedianiline)]), 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 아미노일라민(4'-amino[1,1'-biphenyl]-4-ylamine)이 결합된 사이클로부탄테트라카르복시디언하이드리드-바이페닐디아민(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(4,4'biphenyldiamine)]), 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 옥시디아닐린(4,4'-Oxydianiline)이 결합된 사이클로부탄테트라카르복시디언하이드리드-옥시디아닐린(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(4,4'oxydianiline)]), 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 디아미노벤조페논(4,4'-Diaminobenzophenone)이 결합된 사이클로부탄테트라카르복시디언하이드리드-바이페닐디아민(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(4,4'biphenyldiamine)], 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 디아미노옥타플로러바이페닐(Diaminooctafluorobiphenyl)이 결합된 사이클로부탄테트라카르복시디언하이드리드-옥타플로러바이페닐디아민(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(2,2',3,3',5,5',6,6'-octafluoro-4,4'-biphenyldiamine)]), 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 디아미노바이트리플로러바이페닐(Diamino-bitrifluoromethyl-biphenyl)이 결합된 사이클로부탄테트라카르복시디언하이드리드-디플로러메틸바이페닐(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(2,2'trifluoromethyl-4,4'-biphenyl)]), 및 상기 1,2,3,4-시클로부탄테트라카르복실산 2무수물(CBDA)에 디아미노디플로러바이페닐(Diaminodifluorobiphenyl)이 결합된 사이클로부탄테트라카르복시디언하이드리드-디플로러-바이페닐(Polyimide:[(Cyclobutanetetracarboxylic dianhydride)-alt-(2,2'-difluoro-4,4'-biphenyl)]) 중에서 선택된 재료를 포함하고, The high-sensitivity material is obtained by reacting 1,2,3,4-cyclobutane tetracarboxylic acid dianhydride (CBDA) with cyclobutanetetracarboxylic dianhydride (p-phenylenediamine) Cyclobutanetetracarboxylic dianhydride) - alt - (1,4 -aniline)]), the 1,2,3,4-cyclobutane tetracarboxylic dianhydride (CBDA), diamino-diphenylmethane (4,4'-diaminodiphenylmethane a) the combined cyclobutane tetracarboxylic carboxy Meridian hydride-methylenedianiline (Polyimide: [(Cyclobutanetetracarboxylic dianhydride) - alt - (4,4'-methylenedianiline)]), the 1,2,3,4-cyclobutane tetracarboxylic Cyclobutanetetracarboxylic dianhydride (CBDA) is a polyimide: [(Cyclobutanetetracarboxylic dianhydride) in which 4'-amino [1,1'-biphenyl] -4-ylamine is bonded to an acid anhydride (CBDA) - alt - (4,4'biphenyldiamine)]) , the 1,2,3,4-cyclobutane tetracarboxylic acid 2 octanoic anhydride (CBDA) Dianiline (4,4'-Oxydianiline) fitted with a cyclobutane tetracarboxylic carboxy Meridian hydride-oxydianiline (Polyimide: [(Cyclobutanetetracarboxylic dianhydride) - alt - (4,4'oxydianiline)]), the 1, 2, Cyclobutanetetracarboxylic dianhydride (PBMC) in which 4,4'-Diaminobenzophenone is bonded to 3,4-cyclobutane tetracarboxylic acid dianhydride (CBDA) - alt - (4,4'biphenyldiamine)], the 1,2,3,4-cyclobutane tetracarboxylic dianhydride (CBDA) to the diamino-octahydro peulroreo biphenyl (Diaminooctafluorobiphenyl) fitted with a cyclobutane tetracarboxylic carboxy Meridian (Cyclobutanetetracarboxylic dianhydride) - alt - (2,2 ', 3,3', 5,5 ', 6,6'-octafluoro-4,4'-biphenyldiamine] ), Adding to the 1,2,3,4-cyclobutane tetracarboxylic acid dianhydride (CBDA) diaminobutylrifluorobiphenyl (D iamino-bitrifluoromethyl-biphenyl) fitted with a cyclobutane tetracarboxylic carboxy Meridian hydride-di-methyl-biphenyl-peulroreo (Polyimide: [(Cyclobutanetetracarboxylic dianhydride) - alt - (2,2'trifluoromethyl-4,4'-biphenyl)]), And cyclic butanetetracarboxylic dianhydride-di-fluoro-biphenyls having diaminodifluorobiphenyl bonded to the 1,2,3,4-cyclobutane tetracarboxylic acid dianhydride (CBDA) [(Cyclobutanetetracarboxylic dianhydride) - alt - (2,2'-difluoro-4,4'-biphenyl)] comprises a) from a selected material, 상기 저감도 재료는 상기 피로멜리틱디언하이드리드(Pyromellitic dianhydride)에 파라페닐렌디아민(p-Phenylenediamine)이 결합된 피로멜리틱디언하이드리드-아닐린(Polyimide:[(pyromellitic dianhydride)-alt-(1,4-aniline)]), 상기 피로멜리틱디언하이드리드(Pyromellitic dianhydride)에 디아미노페닐메탄(4,4'-Diaminodiphenylmethane)이 결합된 피로멜리틱디언하이드리드-메틸렌디아닐린(Polyimide:[(pyromellitic dianhydride)-alt-(4,4'-methylenedianiline)]), 상기 피로멜리틱디언하이드리드(Pyromellitic dianhydride)에 아미노일라민(4'-amino[1,1'-biphenyl]-4-ylamine)이 결합된 피로멜리틱디언하이드리드-바이페닐디아민(Polyimide:[(pyromellitic dianhydride)-alt-(4,4'-biphenyldiamine)]), 상기 피로멜리틱디언하이드리드(Pyromellitic dianhydride)에 옥시디아닐린(4,4'-Oxydianiline)이 결합된 피로멜리틱디언하이드리드-옥시디아닐린(Polyimide:[(pyromellitic dianhydride)-alt-(4,4'oxydianiline)], 상기 사이클로헥산디언하이드리드(Cyclohexanedianhydride)에 파라페닐렌디아민(p-Phenylenediamine)이 결합된 사이클로헥산테트라카르복시-아닐린(Polyimide:[(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride)-alt-(1,4-aniline)]), 상기 사이클로헥산디언하이드리드(Cyclohexanedianhydride)에 디아미노디페닐메탄(4,4'-Diaminodiphenylmethane )이 결합된 사이클로헥산테트라카르복시-메틸렌디아닐린(Polyimide:[(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride)-alt-(4,4'-methylenedianiline)]), 상기 사이클로헥산디언하이드리드(Cyclohexanedianhydride)에 아미노일라민(4'-amino[1,1'-biphenyl]-4-ylamine )이 결합된 사이클로헥산테트라카르복시-바이페닐디아민(Polyimide:[(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride)-alt-(4,4'-biphenyldiamine)]), 및 상기 사이클로헥산디언하이드리드(Cyclohexanedianhydride)에 옥시디아닐린(4,4'-Oxydianiline)이 결합된 사이클로헥산테트라카르복시-옥시디아닐린(Polyimide:[(1,2,4,5-cyclohexanetetracarboxylic dianhydride)-alt-(4,4'-oxydianiline)]) 중에서 선택된 재료를 포함하는 것을 특징으로 하는 액정표시장치의 배향막의 광 배향방법.The low sensitivity materials are the fatigue para-phenylenediamine (p-Phenylenediamine) of pyromellitic Meridian hydride bonds to Meli tick Meridian hydride (Pyromellitic dianhydride) - aniline (Polyimide: [(pyromellitic dianhydride) - alt - (1 , 4-aniline)), pyromellitic dianhydride-methylenedianiline (4,4'-Diaminodiphenylmethane) to which pyromellitic dianhydride is bonded, pyromellitic dianhydride) - alt - (4,4' -methylenedianiline)]), one amino suramin (4'-amino [1,1'-biphenyl ] -4-ylamine) on the pyromellitic Meridian hydride (pyromellitic dianhydride) the combined pyromellitic Meridian hydride-biphenyl diamine (Polyimide: [(pyromellitic dianhydride) - alt - (4,4'-biphenyldiamine)]), the blood in the Meli tick Meridian hydride (pyromellitic dianhydride) oxydianiline (4,4'-Oxydianiline) -based pyromellitic dianhydride-oxydianiline (Polyimide: [(p yromellitic dianhydride) - alt - (4,4'oxydianiline )], the cyclohexane Meridian Hyde on paraphenylene lead (Cyclohexanedianhydride) diamine (p-Phenylenediamine) is a combined cyclohexane tetra-carboxy-aniline (Polyimide: [(1, 2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride) - alt - (1,4-aniline)]), the cycloalkyl in hexane Meridian hydride (Cyclohexanedianhydride) diamino-diphenylmethane (4,4'-diaminodiphenylmethane a) are combined cycle hexane tetra carboxy-methylenedianiline (Polyimide: [(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride) - alt - (4,4'-methylenedianiline)]), ylamino the cyclohexane Meridian hydride (Cyclohexanedianhydride) suramin (4'-amino [1,1'-biphenyl ] -4-ylamine) that combines the cyclohexane tetra-carboxy-biphenyl-diamine (Polyimide: [(1,2,4,5-cyclohexanetetracarboxylic dianhydride dianhydride) - alt - (4,4'-biphenyldiamine)]), and the cyclohexanedione hydrate (Cyclohexanedianhydride) oxydianiline (4,4'-Oxydianiline) is bonded to the carboxy cyclohexane tetra-oxydianiline (Polyimide: [(1,2,4,5-cyclohexanetetracarboxylic dianhydride) - alt - (4,4 ' -oxydianiline)]). < / RTI >
KR1020070141116A 2007-12-29 2007-12-29 Alignment layer for Liquid Crystal Display and Light Aligning Method thereof KR101396108B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070141116A KR101396108B1 (en) 2007-12-29 2007-12-29 Alignment layer for Liquid Crystal Display and Light Aligning Method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070141116A KR101396108B1 (en) 2007-12-29 2007-12-29 Alignment layer for Liquid Crystal Display and Light Aligning Method thereof

Publications (2)

Publication Number Publication Date
KR20090072871A KR20090072871A (en) 2009-07-02
KR101396108B1 true KR101396108B1 (en) 2014-05-28

Family

ID=41330043

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070141116A KR101396108B1 (en) 2007-12-29 2007-12-29 Alignment layer for Liquid Crystal Display and Light Aligning Method thereof

Country Status (1)

Country Link
KR (1) KR101396108B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130001584A (en) 2011-06-27 2013-01-04 삼성디스플레이 주식회사 Liquid crystal display
KR102071632B1 (en) * 2013-09-26 2020-01-31 삼성디스플레이 주식회사 Liquid crystal photo alignment agent, liquid crystal display device including the same and method of manufacturing the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010011324A (en) * 1999-07-27 2001-02-15 윤종용 A manufacturing method of thin film transistor substrate for liquid crystal display
JP2002287151A (en) * 2001-01-17 2002-10-03 Matsushita Electric Ind Co Ltd Liquid crystal display element and manufacturing method therefor
KR20040035437A (en) * 2002-10-22 2004-04-29 엘지전선 주식회사 Composition for liquid crystal alignment composed of compounds of photosensitive polymers and non-photosensitive polymers, preparation method of the film for photoinduced liquid crystal thereby and the liguid crystal cell comprising the film
WO2006093131A1 (en) * 2005-03-01 2006-09-08 Dai Nippon Printing Co., Ltd. Film with alignment film and optical device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010011324A (en) * 1999-07-27 2001-02-15 윤종용 A manufacturing method of thin film transistor substrate for liquid crystal display
JP2002287151A (en) * 2001-01-17 2002-10-03 Matsushita Electric Ind Co Ltd Liquid crystal display element and manufacturing method therefor
KR20040035437A (en) * 2002-10-22 2004-04-29 엘지전선 주식회사 Composition for liquid crystal alignment composed of compounds of photosensitive polymers and non-photosensitive polymers, preparation method of the film for photoinduced liquid crystal thereby and the liguid crystal cell comprising the film
WO2006093131A1 (en) * 2005-03-01 2006-09-08 Dai Nippon Printing Co., Ltd. Film with alignment film and optical device

Also Published As

Publication number Publication date
KR20090072871A (en) 2009-07-02

Similar Documents

Publication Publication Date Title
JP4126731B2 (en) Liquid crystal alignment agent
JP3893659B2 (en) Liquid crystal alignment treatment method
KR101158382B1 (en) Liquid crystal aligning agent for photoalignment and liquid crystal display device utilizing the same
TWI391758B (en) A liquid crystal alignment agent and a liquid crystal display device using the same
KR101616143B1 (en) Liquid-crystal alignment material, liquid-crystal display element employing same, and novel diamine
TWI471656B (en) A liquid crystal alignment agent and a liquid crystal display device using the liquid crystal display device
TWI620769B (en) Liquid crystal alignment agent, liquid crystal alignment film, and liquid crystal display element
TWI793067B (en) Liquid crystal alignment agent, liquid crystal alignment film and liquid crystal display element
JP6097656B2 (en) Liquid crystal display
US20080231786A1 (en) Method of fabricating alignment layer for liquid crystal display device
TWI572673B (en) Liquid crystal alignment agent, liquid crystal alignment film, liquid crystal display device, polymer and compound
CN104102048B (en) Liquid crystal display device
JP2008176304A (en) Liquid crystal aligning agent, liquid crystal alignment layer, liquid crystal display element, and optical member
TWI620791B (en) Polymer, liquid crystal alignment treatment agent, liquid crystal alignment film, and liquid crystal display element
TW200903115A (en) Liquid crystal alignment agents and liquid crystal display elements
WO2015020083A1 (en) Liquid crystal display device and liquid crystal alignment agent
KR20130050862A (en) Liquid crystal display and method of fabricating the same
JP6350515B2 (en) Liquid crystal aligning agent, liquid crystal display element obtained using them, and method for producing the same
TWI633375B (en) Liquid crystal alignment agent, liquid crystal alignment film and method for manufacturing the same, liquid crystal display device, phase difference film and method for manufacturing the same, polymer and compound
KR20170056438A (en) Varnish for photoalignment film and liquid crystal display
KR101396108B1 (en) Alignment layer for Liquid Crystal Display and Light Aligning Method thereof
JPH1073821A (en) Production of liquid crystal orienting film
TW201823310A (en) Liquid crystal alignment agent, liquid crystal alignment film, and liquid crystal display element
TW200932787A (en) Liquid crystal aligning agent and liquid crystal display element
TW201609968A (en) Liquid crystal aligning agent, liquid crystal alignment film and liquid crystal display element

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20170413

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20180416

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20190417

Year of fee payment: 6