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:
May. 03, 2005
Filed:
Dec. 28, 2001
Wook-sung Kim, Gyeonggi-do, KR;
Hyeon-ho Son, Gyeonggi-do, KR;
Ku-hyun Park, Gyeonggi-do, KR;
LG. Philips LCD Co., Ltd., Seoul, KR;
Abstract
A liquid crystal display device includes an upper substrate and a lower substrate facing and spaced apart from each other; an upper orientation film on an inner surface of the upper substrate; a lower orientation film on an inner surface of the lower substrate; a liquid crystal layer interposed between the upper and lower orientation films; an upper polarizing plate on an outer surface of the upper substrate; a lower polarizing plate on an outer surface of the lower substrate; and at least one compensation film disposed between the upper substrate and the upper polarizing plate or between the lower substrate and the lower polarizing plate. In the typical IPS-LCD device with a wide viewing angle, since the metallic black matrix of the upper substrate affects the voltage between the common and pixel electrodes, the black matrix is made of resin and cannot be formed with a bent portion because of the limits of the processing technology. Therefore, the typical IPS-LCD device has a limit for effective realization and a low aperture ratio.