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:
Jan. 06, 2015
Filed:
Sep. 20, 2011
Applicant:
Tzu-wei Liu, Taoyuan County, TW;
Inventor:
Tzu-Wei Liu, Taoyuan County, TW;
Assignee:
Au Optronics Corporation, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/042 (2006.01); G06F 3/041 (2006.01);
U.S. Cl.
CPC ...
G06F 3/042 (2013.01);
Abstract
A photo sensing device suitable for an optical touch display panel and applications thereof are provided. The photo sensing device includes a photo sensing unit and a coupling unit. The photo sensing unit is used for sensing whether a touch event is happened/occurred or not, and accordingly outputting a judging signal. The coupling unit is coupled to the photo sensing unit, and is used for enhancing the sensitivity of the sensing unit, so as to increase a difference between the judging signal associated with occurrence of the touch event and the judging signal associated with non-occurrence of the touch event.