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.:

US 7905616 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 15, 2011

Filed:

Aug. 14, 2008
Applicants:

Akitoyo Konno, Hitachi, JP;

Yoshifumi Sekiguchi, Hitachiota, JP;

Makoto Tsumura, Hitachi, JP;

Ikuo Hiyama, Hitachinaka, JP;

Daisuke Kajita, Hitachi, JP;

Inventors:

Akitoyo Konno, Hitachi, JP;

Yoshifumi Sekiguchi, Hitachiota, JP;

Makoto Tsumura, Hitachi, JP;

Ikuo Hiyama, Hitachinaka, JP;

Daisuke Kajita, Hitachi, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09F 13/04 (2006.01); G09F 13/08 (2006.01); F21V 7/04 (2006.01); F21V 21/00 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
Abstract

An illumination device has at least one fluorescent tube, a lower frame supporting the fluorescent tube, a light diffusion plate which opposes the lower frame with the fluorescent tube being interposed therebetween for forward diffusion of output light of the fluorescent tube, a reflection sheet disposed along the fluorescent tube side of the lower frame for reflecting the fluorescent light toward the light diffuser plate, and an upside reflector covering an electrode of the fluorescent tube for reflecting the light toward the light diffuser. When letting a direction along a length of the fluorescent tube be a horizontal direction, a distance between the fluorescent tube and the reflection sheet at at least one of nearby portions of right and left ends of the illuminator is greater than such distance at a central portion thereof. A liquid crystal display (LCD) apparatus using the illuminator is also disclosed.


Find Patent Forward Citations

Konno, Akitoyo. (2011). Illumination unit and display unit incorporating the same (U.S. Patent No. 7905616). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7905616

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