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:
Feb. 03, 2004
Filed:
Apr. 03, 2002
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 7/04 ;
U.S. Cl.
CPC ...
F21V 7/04 ;
Abstract
Disclosed are a brightness-enhancing light guiding plate and an LCD using the same, in which a brightness enhancing recess portion for improving an optical distribution, changing a light path and enhancing brightness is formed at a surface by which light is reflected. The brightness enhancing recess portion has a reflection recess surface having a maximum surface area and a non-reflection recess surface having a minimum surface area, thereby improving the brightness, changing the light path and improving the optical distribution and thus improving a displaying performance.
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Kim, Hee-Sun. (2004). Brightness-enhancing light guiding plate and liquid crystal display device using the same (U.S. Patent No. 6685329). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6685329
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile