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:
Jun. 02, 2015
Filed:
Feb. 02, 2009
IN Cheon Han, Seoul, KR;
Ki Seok Jang, Daegu, KR;
Min Soo Park, Daejeon, KR;
Min Jin Ko, Daejeon, KR;
Bum Gyu Chol, Daejeon, KR;
Ik Hwan Cho, Daejeon, KR;
Ki Youl Lee, Daejeon, KR;
In Cheon Han, Seoul, KR;
Ki Seok Jang, Daegu, KR;
Min Soo Park, Daejeon, KR;
Min Jin Ko, Daejeon, KR;
Bum Gyu Chol, Daejeon, KR;
Ik Hwan Cho, Daejeon, KR;
Ki Youl Lee, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Disclosed are (A) an acrylic pressure-sensitive adhesive; and (B) an acrylic pressure-sensitive adhesive comprising an optically anisotropic compound having at least one substituent which contains an alkyl group, alkenyl group or alkynyl group at a meta-position of a mesogen. A polarizing plate and a liquid crystal display using the same are also disclosed. The optically anisotropic compound ensures excellent compatibility with the adhesive and high birefringence. Thus, main properties such as adhesion, reliability and durability in the conditions of high temperatures or high temperatures and high humidity are not worsened. Moreover light leakage is prevented by efficiently controlling the birefringence caused by shrinkage stress of the polarizing plate.