Invention Grant
- Patent Title: Touch panel
- Patent Title (中): 触控面板
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Application No.: US12625474Application Date: 2009-11-24
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Publication No.: US08269118B2Publication Date: 2012-09-18
- Inventor: Jing-Tin Kuo , Pei-Yu Chen , Yu-Chuan Lin , Wei-Jen Chang , Kuo-Hsing Cheng
- Applicant: Jing-Tin Kuo , Pei-Yu Chen , Yu-Chuan Lin , Wei-Jen Chang , Kuo-Hsing Cheng
- Applicant Address: TW Hsinchu
- Assignee: Au Optronics Corporation
- Current Assignee: Au Optronics Corporation
- Current Assignee Address: TW Hsinchu
- Agency: Jianq Chyun IP Office
- Priority: TW98120484A 20090618
- Main IPC: G06F3/044
- IPC: G06F3/044

Abstract:
A touch panel includes a substrate, a touch-sensing circuit, a plurality of sensing signal transmission wires, a capacitance compensation conductor, and a sensing signal readout circuit. The touch-sensing circuit is disposed on the substrate. The sensing signal transmission wires are disposed on the substrate and electrically connected to the touch-sensing circuit. The capacitance compensation conductor is disposed over the sensing signal transmission wires. Capacitance of each sensing signal transmission wire is C1, and coupling capacitance between each sensing signal transmission wire and the capacitance compensation conductor is C2. The sensing signal readout circuit is electrically connected to the sensing signal transmission wires. In each sensing signal transmission wire, variation of summation of C1 and C2 is less than a readout resolution of the sensing signal readout circuit. Another touch panel using an electrostatic discharge conductor to adjust varied capacitances of sensing signal transmission wires is also provided.
Public/Granted literature
- US20100320009A1 TOUCH PANEL Public/Granted day:2010-12-23
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