Invention Grant
- Patent Title: Capacitive-type touch panel and touch-point detecting method thereof
- Patent Title (中): 电容式触摸面板及其触摸点检测方法
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Application No.: US12502242Application Date: 2009-07-14
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Publication No.: US08487899B2Publication Date: 2013-07-16
- Inventor: Chun-Yu Chen
- Applicant: Chun-Yu Chen
- Applicant Address: TW Hsin-Chu
- Assignee: Coretronic Corporation
- Current Assignee: Coretronic Corporation
- Current Assignee Address: TW Hsin-Chu
- Agent Chun-Ming Shih
- Priority: TW97139257A 20081013
- Main IPC: G06F3/044
- IPC: G06F3/044
Abstract:
A capacitive-type touch panel and a touch-point detecting method thereof are provided. The capacitive-type touch panel includes a plurality of first-dimension sensing lines and a plurality of second-dimension sensing lines arranged crossing over one another and in a matrix. When detecting a first touch point and a second touch point existed on the capacitive-type touch panel at the same time by scanning the capacitive-type touch panel, locations of the first touch point and the second touch point are determined according to detected currents in the first-dimension sensing lines and the second-dimension sensing lines. Capacitances of each of the first-dimension sensing lines are gradually decreased along a first direction, and capacitances of each of the second-dimension sensing lines are gradually decreased along a second direction.
Public/Granted literature
- US20100090980A1 Capacitive-Type Touch Panel and Touch-Point Detecting Method thereof Public/Granted day:2010-04-15
Information query
