02-01-2020 дата публикации
Номер: US20200002615A1
Принадлежит:
LG CHEM, LTD.
A liquid crystal alignment film comprising a polymer, having an excellent alignment property, stability, and high film strength, and thus exhibiting excellent durability and a high residual image characteristic, and a liquid crystal display device using the liquid crystal alignment film. 2. The liquid crystal alignment film of claim 1 , wherein claim 1 , in Chemical Formula 8 claim 1 , Arand Arare each independently phenylene claim 1 ,{'sup': 1', '2, 'Qand Qare an alkyleneoxy group having 1 to 3 carbon atoms,'}L is —COO—, andn is 1.3. The liquid crystal alignment film of claim 1 , wherein claim 1 , in Chemical Formula 8 claim 1 , Arand Arare each independently phenylene claim 1 ,{'sup': 1', '2, 'Qand Qare each independently an alkyleneoxy group having 1 to 3 carbon atoms,'}L is —COO— or —OCO—, andn is 2.4. The liquid crystal alignment film of claim 1 , wherein claim 1 , in Chemical Formula 8 claim 1 , Aris phenylene claim 1 , and Aris phenylene or biphenylene claim 1 ,{'sup': 1', '2, 'Qand Qare each independently an alkyleneoxy group having 1 to 3 carbon atoms,'}L is —COO— or —OCO—, andn is 2.7. The liquid crystal alignment film of claim 6 , wherein claim 6 , in the liquid crystal alignment film claim 6 ,the weight ratio between the second polymer andthe first polymer is 10:90 to 90:10.8. The liquid crystal alignment film of claim 1 , wherein the first polymer has a weight average molecular weight (measured by a GPC method) of 5000 to 100 claim 1 ,000.9. A liquid crystal display device including the liquid crystal alignment film of . This application is a 35 U.S.C. § 371 National Phase Entry Application from PCT/KR2018/011265, filed on Sep. 21, 2018, and designating the United States, which claims priority to and the benefit of Korean Patent Application No. 10-2017-0134828, filed on Oct. 17, 2017, and Korean Patent Application No. 10-2018-0113253, filed on Sep. 20, 2018, with the Korean Intellectual Property Office, the disclosures of which are incorporated herein ...
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