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:
Mar. 22, 2011
Filed:
Dec. 04, 2007
Chih-chiang Chao, Taipei, TW;
Po-ling Shiao, Hsinchu, TW;
Yu-tsan Tseng, Taoyuan County, TW;
Mei-chun Lai, Miaoli County, TW;
Chih-Chiang Chao, Taipei, TW;
Po-Ling Shiao, Hsinchu, TW;
Yu-Tsan Tseng, Taoyuan County, TW;
Mei-Chun Lai, Miaoli County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A light guiding film is provided including a main body, and a light diffusion structure comprising a plurality of micro concave lenses arranged in a first direction and a second direction to form a second dimensional array and the curvature of each concave lens and the junction of the concave lenses are different from zero. Light from a light source passes through the light diffusion structure and is refracted into the main body and then propagates in the main body by total reflection.