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. 08, 2011
Filed:
Feb. 09, 2009
Yutaka Fujiyama, Niigata, JP;
Hiroaki Kimura, Niigata, JP;
Yutaka Fujiyama, Niigata, JP;
Hiroaki Kimura, Niigata, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In order to realize a thin and simple-structured planar illuminating device which is capable of carrying out the regional light control, a backlight moduleof the present invention includes a light guiding plateincluding steps, and, a plurality of LEDsprovided in the vicinity of one side surface of the light guiding plate, and light guides, andwhich are provided respectively between each of the stepsand each of the LEDsfacing each other. The regional light control is possible by controlling brightness of each of the LEDs. Each of the regions is formed so as to correspond to each of the bottom surfaces, and