Invention Grant
US08692142B2 Circuit for determining positions of contacts on capacitive position detecting panel, touch panel module and method for detecting contacts on capacitive position detecting panel
有权
用于确定电容位置检测面板上的触点位置的电路，触摸屏模块以及用于检测电容位置检测面板上的触点的方法
- Patent Title: Circuit for determining positions of contacts on capacitive position detecting panel, touch panel module and method for detecting contacts on capacitive position detecting panel
- Patent Title (中): 用于确定电容位置检测面板上的触点位置的电路，触摸屏模块以及用于检测电容位置检测面板上的触点的方法
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Application No.: US13236653Application Date: 2011-09-20
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Publication No.: US08692142B2Publication Date: 2014-04-08
- Inventor: Chung-Chun Chen , Cheng-Chiu Pai
- Applicant: Chung-Chun Chen , Cheng-Chiu Pai
- Applicant Address: TW Science-Based Industrial Park, Hsin-Chu
- Assignee: AU Optronics Corp.
- Current Assignee: AU Optronics Corp.
- Current Assignee Address: TW Science-Based Industrial Park, Hsin-Chu
- Agent Winston Hsu; Scott Margo
- Priority: TW100109159A 20110317
- Main IPC: G06F3/041
- IPC: G06F3/041
Abstract:
The invention provides a circuit for determining positions of contacts on a capacitive position detecting panel. The capacitive position detecting panel includes a plurality of sensing lines and driving lines. The circuit includes a plurality of first amplifiers and second amplifiers. The first amplifiers respectively connect to the sensing lines, and the second amplifiers respectively connect to the driving lines. Input nodes of the first amplifiers are connected to a first input signal source, and input nodes of the second amplifiers are selectively connected to the first input signal source or a second input signal source. When the circuit is operated under a first operation mode, the input nodes of the second amplifiers are connected to the first input signal source; and when the circuit is operated under a second operating mode, the input modes of a plurality of specific second amplifiers are connected to the second input signal source.
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