Invention Application
- Patent Title: Touch Sensing Circuit and Associated Method
- Patent Title (中): 触摸感应电路及相关方法
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Application No.: US13253391Application Date: 2011-10-05
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Publication No.: US20120086656A1Publication Date: 2012-04-12
- Inventor: Guo-Kiang Hung , Hsuan-I Pan , Ming-Chang Tsai , Meng-Chang Lee , Shih-Tsung Yang
- Applicant: Guo-Kiang Hung , Hsuan-I Pan , Ming-Chang Tsai , Meng-Chang Lee , Shih-Tsung Yang
- Applicant Address: TW Hsinchu Hsien
- Assignee: MSTAR SEMICONDUCTOR, INC.
- Current Assignee: MSTAR SEMICONDUCTOR, INC.
- Current Assignee Address: TW Hsinchu Hsien
- Priority: TW099134234 20101007
- Main IPC: G06F3/041
- IPC: G06F3/041
Abstract:
A touch sensing circuit and method is provided. The touch sensing circuit discriminates a common voltage change of a display panel couple to the touch sensor in a touch panel display apparatus. The touch sensor comprises a plurality of sensor electrodes. The touch sensing circuit includes a plurality of channel circuits, each of which includes a reset switch and a sensing switch for alternately conducting an associated sensor electrode to a reset voltage and a charge collecting circuit. The channel circuits are divided to different groups that operate according to interleaving timings for encompassing possible common voltage changes.
Public/Granted literature
- US09383856B2 Touch sensing circuit and associated method Public/Granted day:2016-07-05
Information query
