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:
Oct. 25, 2016
Filed:
Jul. 01, 2010
Chiung-han Wang, Kaohsiung County, TW;
Shau-yu Tsai, Taipei, TW;
Chih-wei Chien, Taoyuan County, TW;
Wei-tien Chang, Taichung, TW;
Chiung-Han Wang, Kaohsiung County, TW;
Shau-Yu Tsai, Taipei, TW;
Chih-Wei Chien, Taoyuan County, TW;
Wei-Tien Chang, Taichung, TW;
Au Optronics Corporation, Hsinchu, TW;
Abstract
A touch panel including a light guide plate, a plurality of light sources and a plurality of detectors is provided. The light guide plate has a top surface, a bottom surface, a plurality of side surfaces and a plurality of light incident surfaces. The light sources are disposed at the light incident surfaces of the light guide plate, and the light sources have a photocell total reflection angle (α) and a photocell vertical divergence angle (β) corresponding to the light incident surfaces of the light guide plate, wherein θ<α<60°, θ is a critical angle of the total reflection angle of the light guide plate, and β<50°. The detectors are disposed corresponding to the light sources so as to receive photocell signals from the light sources.