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. 29, 2009
Filed:
Jul. 04, 2006
Hajime Takeuchi, Yokohama, JP;
Ryo Sakai, Yokohama, JP;
Yasumasa Ooya, Chigasaki, JP;
Tsutomu Ishii, Yokohama, JP;
Yasuhiro Shirakawa, Yokohama, JP;
Yukihiro Takenami, Chuo-ku, JP;
Hajime Takeuchi, Yokohama, JP;
Ryo Sakai, Yokohama, JP;
Yasumasa Ooya, Chigasaki, JP;
Tsutomu Ishii, Yokohama, JP;
Yasuhiro Shirakawa, Yokohama, JP;
Yukihiro Takenami, Chuo-ku, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Materials Co., Ltd., Yokohama-shi, JP;
Abstract
A backlight unitincludes a plurality of light emitting devicesconstituted with, for example, LED lamps, and an optical sheetdisposed on light emission surfacesides of the light emitting devices. The light emission surface sides of the plural light emitting devices are joined to the optical sheetvia joining layers. The backlight unitsatisfies a condition of n≦n≦n, where nis a refractive index of the optical sheet, nis a refractive index of the joining layer, and nis a refractive index of the light emitting device