Abstract:
하기 화학식 1로 표시되는 광디아민으로부터 유도된 제1 구조 단위, 하기 화학식 2로 표시되는 디아민으로부터 유도된 제2 구조 단위 및 하기 화학식 3 내지 6으로부터 선택되는 하나 이상의 기능성 디아민으로부터 유도된 제3 구조 단위를 포함하는 폴리아믹산, 폴리이미드 또는 이들의 조합인 고분자 화합물 및 용매를 포함하는 액정 광배향제를 제공한다. [화학식 1]
[화학식 2]
[화학식 3]
[화학식 4]
[화학식 5]
[화학식 6]
상기 화학식 1 내지 6에서, 각 치환기의 정의는 명세서에 정의된 바와 같다. 수직 배향력, 액정광배향제, 액정광배향막
Abstract:
본 발명은 하기 화학식 1로 표시되는 폴리아믹산 중합체, 화학식 2로 표시되는 폴리이미드 중합체, 및 이들의 조합으로 이루어진 군에서 선택되는 어느 하나의 화합물; 및 화학식 3으로 표시되는 폴리이미드 광중합체를 포함하며, 상기 폴리아믹산 중합체, 상기 폴리이미드 중합체, 폴리이미드 광중합체, 및 이들의 조합으로 이루어진 군에서 선택되는 어느 하나의 중합체의 수평균분자량이 50,000 내지 300,000g/mol이고, 분산도(polydispersity)가 1.0 내지 2.5인 액정 광배향제를 제공한다. [화학식 1]
[화학식 2]
[화학식 3]
상기 R 1 내지 R 6 에 대한 정의는 명세서의 상세한 설명에 기재된 바와 같다. 상기 액정 광배향제는 기판에의 인쇄성이 우수하고, 가건조 온도가 변화하더라도 우수한 도막 균일성을 갖는 액정 광배향막을 제조할 수 있다. 액정 광배향막, 액정 광배향제, 폴리아믹산 중합체, 폴리이미드 중합체, 광배향제, 잔상, 선경사각, 전압보전율, 배향안정성, 광배향성, 분산도, 도막균일성, 인쇄성
Abstract:
PURPOSE: A liquid crystal photo-alignment agent is provided to ensure excellent vertical alignment property, chemical resistance, stable liquid crystal alignment property, liquid crystal dropping convenience, excellent adhesive property to a board, electrooptic properties, and reliability to after image and to exhibit a texture with excellent processability. CONSTITUTION: A liquid crystal photo-alignment agent comprises a polymer compound and a solvent, wherein the polymer compound is polyamic acids and polyimide or combination thereof which comprise a first structure unit induced from photodiamine represented by chemical formula 1, a second structure unit induced from diamine represented by chemical formula 2, and a third structure unit induced from one or more functional diamines selected from chemical formulas 3-6.
Abstract:
PURPOSE: A liquid crystal photo-alignment agent is provided to ensure excellent vertical alignment property, chemical resistance stable liquid crystal alignment property, liquid crystal dropping convenience, excellent adhesive property to a board, electrooptic properties, and reliability to after image. CONSTITUTION: A liquid crystal photo-alignment agent comprises a polymer compound, polyamic acids and polyimide or combination thereof, and a solvent. The polymer compound includes a first structure unit induced from photo diamine represented by chemical formula 1, a second structure unit induced from diamine represented by chemical formula 2, and a third structure unit induced from one or more functional diamines selected from chemical formulas 3-6.
Abstract:
A novel photo-diamine, a liquid crystal photoaligning agent containing it, a liquid crystal photo-alignment film and a liquid crystal display device are provided to improve optical alignment, voltage holding ratio, pretilt angle and residual DC. A photo-diamine is represented by the formula 1. A liquid crystal photoaligning agent comprises a polyamic acid which is prepared by polymerizing the photo-diamine, an aromatic diamine and an acid dianhydride selected from the group consisting of an alicyclic acid dianhydride and an aromatic acid dianhydride.
Abstract:
A liquid crystal photoalignment agent is provided to manufacture a liquid crystal photoalignment film with excellent printability on a substrate and excellent film uniformity although a drying temperature is changed. A liquid crystal photoalignment agent comprises any one polymer selected from a polymer group consisting of a polyamic acid polymer represented by chemical formula 1, a polyimide polymer represented by chemical formula 2, and combinations thereof; and a polyimide photopolymer represented by chemical formula 3. The selected polymer has a number average molecular weight of 50,000-300,000 g/mol and a dispersion degree of 1.0-2.5.