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:
Oct. 08, 2013
Filed:
Nov. 25, 2009
Applicants:
Hisayuki Miki, Chiba, JP;
Kousuke Shioi, Ichihara, JP;
Naoto Hirosaki, Tsukuba, JP;
Inventors:
Assignees:
Showa Denko K.K., Tokyo, JP;
National Institute for Materials Science, Ibaraki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09F 13/04 (2006.01); G09F 13/08 (2006.01); H01J 1/62 (2006.01); H01J 63/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An illumination device for a display device, which is formed from a substrate and a plurality of white light-emitting devices disposed on top of the substrate, and can be used as a backlight for a liquid crystal display panel, wherein the white light-emitting devices have a light source and a phosphor that is excited by the light source and emits light, and a fluorescent material with a composition represented by a general formula: M(0)M(1)M(2)M(3)ONis used as the phosphor.