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:
Apr. 25, 2006
Filed:
Sep. 26, 2005
Meng-chai Wu, Jhubei, TW;
Meng-Chai Wu, Jhubei, TW;
AU Optronics Corp., Hsinchu, TW;
Abstract
A backlight module for a liquid crystal display includes a reflective sheet, at least one light source above the reflective sheet, and a lens above the light source. The lens has a light-permeable surface at the bottom, a light-reflecting surface formed on the top of the lens, two side surfaces connecting the light-reflecting surface and the light-permeable surface, and a diffusion surface formed at the center of the light-reflecting surface. Profiles of the light-permeable surface and the light-reflecting surface are concave. The diffusion surface is convex. The lens of the invention allows light emitted by the light source to diffuse more uniformly.