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:
Oct. 16, 2018
Filed:
Dec. 10, 2015
Applicant:
Chi Mei Corporation, Tainan, TW;
Inventors:
Assignee:
CHI MEI CORPORATION, Tainan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/56 (2006.01); C08L 79/08 (2006.01); C08L 83/04 (2006.01); C08L 83/06 (2006.01); G02F 1/1337 (2006.01);
U.S. Cl.
CPC ...
C09K 19/56 (2013.01); G02F 1/133723 (2013.01);
Abstract
A liquid crystal alignment agent contains a polymer composition, a polysiloxane, and a solvent. The polymer composition is obtained by subjecting a mixture including a tetracarboxylic dianhydride component and a diamine component to a reaction. The diamine component includes first and second diamine compounds defined herein. The polysiloxane contains an epoxy-based group and a polymerizable unsaturated group defined herein. A liquid crystal display element made from the aforesaid liquid crystal alignment agent has reduced ion density.