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:
Jun. 02, 2009
Filed:
Jun. 29, 2007
Wen-feng Cheng, Taoyuan County, TW;
Chen-sheng Lee, Taoyuan County, TW;
Chao-ying Lin, Taoyuan County, TW;
Wen-Feng Cheng, Taoyuan County, TW;
Chen-Sheng Lee, Taoyuan County, TW;
Chao-Ying Lin, Taoyuan County, TW;
Entire Technology Co., Ltd., Taoyuan County, TW;
Abstract
A diffusion-plates assembly and a direct-type backlight module assembly are provided. The diffusion-plates assembly includes a first diffusion plate and a second diffusion plate. There are pluralities of first microstructures on the emergent surface of the first diffusion plate, the first microstructures is for condensing light. The thickness of the first diffusion plate is above 0.4 mm, and the transmittance of the first diffusion plate is above 90%. The second diffusion plate is placed over or under the first diffusion plate, The thickness of the second diffusion plate is above 0.4 mm, and the transmittance of the second diffusion plate is 50˜90. Said diffusion-plates assembly is used in the direct-type backlight module assembly.