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:
Nov. 18, 2008
Filed:
Nov. 16, 2004
Akiko Toriyama, Kanagawa, JP;
Hisashi Kadota, Kanagawa, JP;
Makoto Hashimoto, Kanagawa, JP;
Hirohide Fukumoto, Kagoshima, JP;
Hiromi Fukumori, Miyazaki, JP;
Akiko Toriyama, Kanagawa, JP;
Hisashi Kadota, Kanagawa, JP;
Makoto Hashimoto, Kanagawa, JP;
Hirohide Fukumoto, Kagoshima, JP;
Hiromi Fukumori, Miyazaki, JP;
Sony Corporation, , JP;
Abstract
A liquid crystal display device having a high quality able to prevent deterioration etc. of a liquid crystal panel even when a liquid crystal panel used in a light valve of a projector etc. is operated under a high temperature and high humidity environment and a projection type display apparatus using the liquid crystal display device, wherein a liquid crystal layeris sandwiched between a pair of substrates formed by bonding a TFT array substrateand a counter substrateby a sealing materialso that they face each other across a predetermined gap, the sealing materialcontains a nonconductive filler having a mean particle size of less than 0.5 μm, a liquid crystal material used in the liquid crystal layeris set in its refractive index anisotropy an at room temperature to 0.16 or more, and a cell gap d of an interval between the TFT array substrateand the counter substrateis set at 3 μm or less.