Abstract: A liquid crystal alignment solution is provided. The liquid crystal alignment solution includes at least one polymer selected from the group consisting of a polyamide acid-polyamide acid polymer represented by formula (A), a polyimide-polyamide acid polymer represented by formula (B) and a polyimide-polyimide polymer represented by formula (C), in which T1 and T2 are each independently a tetravalent organic group; m<n; p<q; r<s; and at least one of D1 and D2 is selected from the group consisting of formulae (1) to (15).
Type:
Application
Filed:
March 25, 2010
Publication date:
September 30, 2010
Applicant:
DAXIN MATERIALS CORPORATION
Inventors:
Min-Ruei Tsai, Wen-Chung Chu, Chia-Wen Chang, Ming-Chih Lai
Abstract: The invention relates to a polyimide resin polymer which contains at least one repeating unit selected from those of formula (A-1) and formula (A-2) below as polymerization units, wherein P1, P2, Q1, and Q2 are as defined in the specification. The polymer of the invention can be used as an alignment material in liquid crystal displays.
Type:
Grant
Filed:
June 29, 2007
Date of Patent:
September 8, 2009
Assignee:
Daxin Materials Corporation
Inventors:
Ming-Ruei Tsai, Wen-Chung C Chu, Chang Chia-Wen, Lai Ming-Chih
Abstract: A liquid crystal alignment solution is provided. The liquid crystal alignment solution includes a first polyimide-polyamide acid and a second polyimide-polyamide acid. The first polyimide-polyamide acid is represented by formula (A), and the second polyimide-polyamide acid is represented by formula (B), in which T1, T2, T3 and T4 are each independently a tetravalent residue of a tetracarboxylic acid dianhydride; D1, D2, D3 and D4 are each independently a divalent residue of a diamine; and m, n, p and q are each independently an positive integer, wherein m/(m+n)?0.5 and p/(p+q)?0.5.
Abstract: The invention provides a cyclobutanetetracarboxylate compound of general formula (I) and a preparation method thereof: in which R and R1 are as defined in the specification.
Type:
Grant
Filed:
August 2, 2007
Date of Patent:
July 22, 2008
Assignee:
Daxin Material Corporation
Inventors:
Ming-Chih Lai, Chia-Wen Chang, Chi-Wi Ong