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:
May. 19, 2015
Filed:
Feb. 26, 2013
AU Optronics Corp., Hsinchu, TW;
Chung-Min Lien, Taipei, TW;
Hsin-Yu Pan, Hsichu, TW;
Yueh-Hung Chung, Taipei, TW;
Ya-Ling Hsu, New Taipei, TW;
AU OPTRONICS CORP., Hsinchu, TW;
Abstract
An optical touch display panel includes a plurality of light-sensing touch units and a position detecting circuit. Each light-sensing touch unit includes a light-sensing component, a storage capacitor, a signal reading component, and a charging component. The light-sensing component senses a light source to generate a sensing signal. The storage capacitor is connected electrically to the light-sensing component for storing the sensing signal. The signal reading component is connected electrically to the storage capacitor for reading a voltage of the storage capacitor to generate a reading signal. The charging signal is connected electrically to the storage capacitor for charging the storage capacitor to reset an electric charge record of the storage capacitor. The position detecting circuit is connected electrically to the light-sensing touch units for detecting a touch point on the optical touch display panel according to a reading signal output by each of the light-sensing touch units.