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. 23, 2010
Filed:
Aug. 05, 2005
Kazutoshi Mahama, Ibaraki, JP;
Masato Hatanaka, Saitama, JP;
Kazutoshi Mahama, Ibaraki, JP;
Masato Hatanaka, Saitama, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present invention is directed to a transmission type liquid crystal display apparatus using a backlight device for delivering rays of display light which have been emitted from a large number of light emitting diodes to a transmission type display panel, wherein an optical sheet block () is provided between a liquid crystal panel () and a light source unit () including a large number of LEDs (), the transmission type liquid crystal display apparatus comprising a light diffusion plate (), consisting of resin, having light transmitting characteristic, which is adapted control incidence of rays of display light which have been emitted from the respective LEDs (). At the light diffusion plate (), light adjustment patterns () facing the respective LEDs () and adapted to take a shape which has dimensions including outer shape thereof and is longitudinally elongated are formed by light reflection ink. Thus, realization of uniformity of rays of light which have been emitted from LEDs () is preformed to realize image display of high luminance in which color unevenness and/or lateral stripe have been suppressed.