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:
Mar. 03, 2015
Filed:
Mar. 15, 2011
Sung-hyun Nam, Daejeon, KR;
Hyuk Yoon, Gyeonggi-do, KR;
Kyun IL Rah, Daejeon, KR;
Moon-soo Park, Daejeon, KR;
Sung-Hyun Nam, Daejeon, KR;
Hyuk Yoon, Gyeonggi-do, KR;
Kyun Il Rah, Daejeon, KR;
Moon-Soo Park, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Provided are a circular polarizer and a reflective liquid crystal display including the same. The circular polarizer includes a polarizer comprising a polarizing film in which an absorption axis has an angle of about 85° to about 95° with respect to a liquid crystal alignment direction of a liquid crystal cell, where, in CIE coordinates, a color 'a' is about −1 to about −0.6 and a color 'b' is about 0.3 to about 2.5 and a ¼ wavelength plate in which an optical axis has an angle of about 130° to about 140° with respect to the liquid crystal alignment direction of the light crystal cell. When the circular polarizer is used, the visibility and color tone of the reflective liquid crystal display may be improved.