LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNING FILM AND LIQUID CRYSTAL DISPLAY DEVICE

• Main Author: KOYAMA TAKAYOSHI
• Format: Patent
• Language: English; Korean
• Published: 25.05.2010
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP

PURPOSE: A liquid crystal aligning agent, a liquid crystal aligning layer, and a liquid crystal display device including thereof are provided to improve the liquid crystal orientation-regulating force, and improve the reliability of the liquid crystal aligning layer. CONSTITUTION: A liquid crystal aligning agent contains a polymer with a recurring unit marked as chemical formula 1, and a polymer selected from the group consisting of tetracarboxylic dianhydride, polyamic acid, and an imidized polymer of the polyamic acid. In the chemical formula 1, R1 refers to a hydrogen atom or a methyl group. B1 refers to a fluoroalkyl group with the carbon number of 1~10 if A1 refers to a single bond methylene group or an alkylene group with the carbon number of 2~10. 본 발명은, 우수한 액정 배향 규제력(프리틸트각 발현성)을 나타내고, 개선된 소부(燒付) 특성을 갖고, 고도의 신뢰성 및 장기간에 걸친 열 응력 인가 후의 잔류 DC 전압의 축적이 억제된 액정 배향막을 제공할 수 있는 액정 배향제를 제공하는 것이다. 상기 액정 배향제는 하기 화학식 1-1로 표시되는 구조로 대표되는 특정한 반복 단위를 갖는 중합체와, 테트라카르복실산 이무수물 및 디아민을 반응시켜 얻어지는 폴리아믹산 및 그의 이미드화 중합체로 이루어지는 군으로부터 선택되는 1종 이상의 중합체를 함유한다. [화학식 1-1]