Invention Grant
- Patent Title: Touch panel and touching point detection method thereof
- Patent Title (中): 触摸面板及其触摸点检测方法
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Application No.: US12619640Application Date: 2009-11-16
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Publication No.: US08350825B2Publication Date: 2013-01-08
- Inventor: Tsang-Chih Wu
- Applicant: Tsang-Chih Wu
- Applicant Address: TW Hsinchu
- Assignee: ITE Tech. Inc.
- Current Assignee: ITE Tech. Inc.
- Current Assignee Address: TW Hsinchu
- Agency: Litron Patent and Trademark Office
- Agent Min-Lee Teng
- Priority: TW98132452A 20090925
- Main IPC: G06F3/045
- IPC: G06F3/045

Abstract:
A touch panel is disclosed. The touch panel mentioned above includes at least a touching detection column and a touching detection module. The detection column includes N first touching detection units, N is a positive integer. Each of the first touching detection units transfers a first capacitance varying value according to an area cover by a touching point. The touching detection module operates a differential operating on the first capacitance varying values from two of the first touching detection units which is disposed adjoining in sequential for obtaining a capacitance varying order distribution. The touching detection module obtains a number of at least one first touching point and coordinates thereof by calculating the capacitance varying order distribution.
Public/Granted literature
- US20110074726A1 TOUCH PANEL AND TOUCHING POINT DETECTION METHOD THEREOF Public/Granted day:2011-03-31
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