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:
Aug. 23, 2011
Filed:
Apr. 20, 2010
Yoshihiko Yamamoto, Mihara, JP;
Yoshihiko Yamamoto, Mihara, JP;
Sharp Kabushiki Kaisha, Osaka-shi, JP;
Abstract
The present invention provides a backlight having a uniform in-plane brightness distribution, the backlight having at least two dot light emitting devices of substantially similar color having at least two different brightness ranks into which the dot light emitting devices are classified in accordance with brightness, wherein each brightness rank comprises a predetermined range of brightness variations, arranged in a plane manner, wherein the plurality of dot light emitting devices are mounted in a plurality of blocks, each block having at least two dot light emitting devices of different brightness ranks, so that the number of the dot light emitting devices provided in each of the plurality of blocks is substantially uniform across the plurality of blocks and a total brightness associated with the brightness ranks of the dot light emitting devices provided in each of the plurality of blocks provides a substantially uniform brightness distribution across the plurality of blocks.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile