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:
Jul. 18, 2006
Filed:
Jun. 27, 2003
Ku-hyun Park, Gyeonggi-do, KR;
Sang-ho Choi, Gyeonggi-do, KR;
Ku-Hyun Park, Gyeonggi-do, KR;
Sang-Ho Choi, Gyeonggi-do, KR;
LG.Philips LCD Co., Ltd., Seoul, KR;
Abstract
An optically compensated birefringence mode liquid crystal display device includes first and second substrates facing and spaced apart from each other, a liquid crystal material layer between the first and second substrates, the liquid crystal material layer having a splay state when a voltage is not applied and having a bend state when a transition voltage is applied, a first compensation film on an outer surface of the first substrate, a first polarizing plate on the first compensation film, a second compensation film on an outer surface of the second substrate, and a second polarizing plate on the second compensation film, wherein the liquid crystal material layer in the splay state has a first retardation value (R) satisfying according to:the liquid crystal material layer in the bend state has a second retardation value (R) according to:when a white voltage for a white image is applied, and a third retardation value (R) according to:when a black voltage for a black image is applied.