The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 2016
Filed:
Mar. 17, 2015
Chi Mei Corporation, Tainan, TW;
Shin-Rong Chiou, Kaohsiung, TW;
Chi Mei Corporation, Tainan, TW;
Abstract
A liquid crystal alignment agent, a liquid crystal alignment film, and a liquid crystal display device are provided. The liquid crystal alignment agent includes a polymer composition (A-1) and a solvent (B). The polymer composition (A-1) is obtained by reacting a tetracarboxylic acid dianhydride compound (a) with a diamine compound (b). The diamine compound (b) includes at least one type of diamine (b-1) represented by formula (I) and at least one type of diamine (b-2) having the structure represented by formula (II). The liquid crystal alignment agent can be made into a liquid crystal display device having good uniformity of pretilt angle after ultraviolet irradiation.