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:
May. 06, 2008
Filed:
Sep. 19, 2002
Toshihiko Ura, Ishikawa, JP;
Toshihiko Ura, Ishikawa, JP;
Toshiba Matsushita Display Technology Co., Ltd., Tokyo, JP;
Abstract
A liquid crystal display device according to the present invention has a lighting unit (UT) comprising a light guiding plate (), a light source (), a reflector (), a reflecting sheet () and a housing (), and a liquid crystal display panel (). In the liquid crystal display device, increase in temperature of the light source () is prevented by providing an opening portion (S) on the housing () such that the opening portion (S) reaches the reflector (). In the liquid crystal display device, light emission intensity of the lighting unit (UT) is not lowered during operation of the device, and further, a lifetime of the light source () is not shortened.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile