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 6721021 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 13, 2004

Filed:

Aug. 27, 2002
Applicant:
Inventors:

Takuya Sakamoto, Kumamoto, JP;

Hiroshige Hayasaki, Kumamoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1333 ; G02F 1/1335 ; F21V 7/04 ;
U.S. Cl.
CPC ...
G02F 1/1333 ; G02F 1/1335 ; F21V 7/04 ;
Abstract

A liquid crystal display device is constructed by arranging, on the back of a liquid crystal panel for displaying an image, an optical guide plate unit constructed to irradiate the whole surface of the liquid crystal panel with a light coming from a lamp unit and reflected by a lamp reflector by positioning the liquid crystal panel in contact with a liquid crystal panel receiving portion which is rounded by folding back a lamp cover constructed to cover the lamp unit and by supporting and fixing the liquid crystal panel and the optical guide plate unit by a front frame and a back frame


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Sakamoto, Takuya. (2004). Liquid crystal display device having a back frame which includes a contacted portion with the liquid crystal panel (U.S. Patent No. 6721021). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6721021

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