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:
Feb. 16, 2010
Filed:
Dec. 17, 2004
Tsunemori Asahi, Hotaka-machi, JP;
Junichi Nakamura, Shiojiri, JP;
Shoichi Uchiyama, Suwa-gun, JP;
Takashi Nitta, Chino, JP;
Tsunemori Asahi, Hotaka-machi, JP;
Junichi Nakamura, Shiojiri, JP;
Shoichi Uchiyama, Suwa-gun, JP;
Takashi Nitta, Chino, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
Exemplary embodiments of the present invention provide a light propagation characteristic control apparatus which extends the light-intensity dynamic range and the number of levels, and are suited for enhancing image quality and reducing the size and generation time of tables. Exemplary embodiments provide a projection display apparatus that tentatively decides a transmissivity Tof each pixel of a color-modulation light valve depending upon HDR display data, and decides a transmissivity Tof each pixel of an intensity-modulation light valve depending upon a tentatively decided transmissivity Tand the HDR display data, and a control value of each pixel of the intensity-modulation light valve depending upon a decided transmissivity T. Depending upon a decided transmissivity Tand the HDR display data, transmissivity Tis decided of each pixel of the color-modulation light valve. Depending upon a decided transmissivity T, a control value is decided of each pixel of the color-modulation light valve.