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:
Mar. 17, 2009
Filed:
Mar. 24, 2004
Takashi Ikeda, Osaka, JP;
Yoshitaka Kurosaka, Hyogo, JP;
Hideyuki Kanayama, Kyoto, JP;
Koji Ishii, Osaka, JP;
Takashi Ikeda, Osaka, JP;
Yoshitaka Kurosaka, Hyogo, JP;
Hideyuki Kanayama, Kyoto, JP;
Koji Ishii, Osaka, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A reflection mixing member () has an alignment in which light from a first light source is incident on a reflecting surface () and light from a second light source is incident on a reflecting surface (). A relationship between a pitch Wp, which is a pitch between portions (triangular prisms) respectively formed of the reflecting surface () and the reflecting surface () in the reflection mixing member (), and a lens pitch Wf is set to be (Wp/Wf≠1). As a result, light fluxes of respectively different distribution are incident on each lens portion of fly's eye lens, so that it is possible to prevent luminance non-uniformity in light incident on a liquid crystal display panel () from being generated and prevent color non-uniformity from being generated on a screen at the same time.