Invention Grant
- Patent Title: Optical touch panel system and positioning method thereof
- Patent Title (中): 光触摸屏系统及其定位方法
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Application No.: US13647289Application Date: 2012-10-08
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Publication No.: US09489085B2Publication Date: 2016-11-08
- Inventor: Chun-Shen Lin , Chun-Yi Lu , Chi-Chieh Liao , Tzung-Min Su , Ming-Tsan Kao
- Applicant: Chun-Shen Lin , Chun-Yi Lu , Chi-Chieh Liao , Tzung-Min Su , Ming-Tsan Kao
- Applicant Address: TW Hsin-Chu
- Assignee: PIXART IMAGING INCORPORATION, R.O.C.
- Current Assignee: PIXART IMAGING INCORPORATION, R.O.C.
- Current Assignee Address: TW Hsin-Chu
- Agency: Tung & Associates
- Main IPC: G06F3/042
- IPC: G06F3/042 ; G06F3/041 ; G06F3/038
Abstract:
The present invention discloses an optical touch panel system and a positioning method for positioning an object existing in a touch control area. The system includes: at least one reflective element disposed on a side of the touch control area; at least one light guide module disposed on a side of the touch control area adjacent to or opposite the reflective element and emitting light; an image sensor capturing an image of the object; a plurality of photo detectors arranged on a side of the touch control area adjacent to the image sensor and sensing the object to obtain shade information; and a processor calculating the coordinates of the object according to the image and the shade information.
Public/Granted literature
- US20140098062A1 OPTICAL TOUCH PANEL SYSTEM AND POSITIONING METHOD THEREOF Public/Granted day:2014-04-10
Information query
