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:
Dec. 21, 2010
Filed:
Aug. 14, 2008
Makoto Tsumura, Hitachi, JP;
Akitoyo Konno, Hitachi, JP;
Yoshifumi Sekiguchi, Hitachiota, JP;
Ikuo Hiyama, Hitachinaka, JP;
Daisuke Kajita, Hitachi, JP;
Makoto Tsumura, Hitachi, JP;
Akitoyo Konno, Hitachi, JP;
Yoshifumi Sekiguchi, Hitachiota, JP;
Ikuo Hiyama, Hitachinaka, JP;
Daisuke Kajita, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a liquid crystal apparatus in which a white light of a fluorescent tube corresponding to a linear light source repeats plural times of diffusions and reflections between a reflection sheet and a diffusion plate, and is thereafter input as a back light to a liquid crystal panel corresponding to a display screen, an object of the invention is to make it possible to secure a brightness uniformity even if the liquid crystal apparatus is thinned. It is possible to prevent a brightness unevenness caused by a short distance from the reflection sheet to the diffusion plate, by preventing a deformation (a deformation which is convex toward the fluorescent tube) of the diffusion plate due to a thermal expansion of the diffusion plate caused by a heat generation of the fluorescent tube, by arranging at least one pin mold hold so as to support a portion near an approximately center of the diffusion plate.