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. 17, 2015
Filed:
Jul. 09, 2014
Applicant:
Chi Mei Corporation, Tainan, TW;
Inventor:
Tsung-Pei Tsai, Tainan, TW;
Assignee:
CHI MEI CORPORATION, Tainan, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/1337 (2006.01); C08G 73/10 (2006.01); C08G 69/26 (2006.01); C08L 79/08 (2006.01); C08J 5/18 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133723 (2013.01); C08G 73/10 (2013.01); C08J 5/18 (2013.01); C08L 79/08 (2013.01); C08J 2379/08 (2013.01);
Abstract
The present invention relates to a liquid crystal alignment agent, a liquid crystal alignment film made by the liquid crystal alignment agent and a liquid crystal display element having the liquid crystal alignment film. The liquid crystal alignment agent includes a polymer (A) and a solvent (B). The polymer (A) is synthesized by reacting a mixture that includes a tetracarboxylic dianhydride compound (a) and a diamine compound (b). According to the specific diamine compound (b) and an amount of the same, the aforementioned liquid crystal alignment agent has better pretilt angle stability.