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:
Sep. 27, 2011
Filed:
Sep. 17, 2009
Shunsuke Izawa, Kanagawa-ken, JP;
Takashi Moroboshi, Kanagawa-ken, JP;
Tetsuji Suzuki, Kanagawa-ken, JP;
Manabu Endou, Kanagawa-ken, JP;
Yasuo Ishizaka, Kanagawa-ken, JP;
Shunsuke Izawa, Kanagawa-ken, JP;
Takashi Moroboshi, Kanagawa-ken, JP;
Tetsuji Suzuki, Kanagawa-ken, JP;
Manabu Endou, Kanagawa-ken, JP;
Yasuo Ishizaka, Kanagawa-ken, JP;
Victor Company of Japan, Limited, Yokohama, JP;
Abstract
A projection type display device is provided to display high quality images. In the device, a WB-PBSWis inclined to liquid crystal display devicesand has wire gridsparallel with a first substrate. One of directions of projection lines obtained by projecting the wire gridson a second substratevertically, the one direction being directed to a direction where one extension surface of the polarization spectroscopic surface intersects with another extension surface of the second substrate when the one direction is turned in the counterclockwise direction by 90°, is defined as X-axis. If the liquid crystal display devicesare a type of first twist (normal twist), device reference line vectors are located at 225°±10° in the counterclockwise direction in view from the first substrate. In case of a second twist (reverse twist) type, the device reference line vectors are located at 315°±10° in the counterclockwise direction in view from the first substrate