发明授权
US08194050B2 Sensing circuit discharge control method and device for touch panel
有权
感应电路放电控制方法和触摸屏设备
- 专利标题： Sensing circuit discharge control method and device for touch panel
- 专利标题（中）： 感应电路放电控制方法和触摸屏设备
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申请号： US12560756申请日： 2009-09-16
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公开(公告)号： US08194050B2公开(公告)日： 2012-06-05
- 发明人: Kai-Chieh Yang , Fu-Yuan Hsueh , I-Lin Wu
- 申请人： Kai-Chieh Yang , Fu-Yuan Hsueh , I-Lin Wu
- 申请人地址： TW
- 专利权人： Chimei Innolux Corporation
- 当前专利权人： Chimei Innolux Corporation
- 当前专利权人地址： TW
- 代理机构： Lowe Hauptman Ham & Berner, LLP
- 优先权： TW97136054A 20080919
- 主分类号： G06F3/045
- IPC分类号： G06F3/045
摘要：
A sensing circuit discharge control method and device for a touch panel are disclosed. A discharging duration of a current source in the sensing circuit of the touch panel is fine tuned in a digital control manner, so as to control the discharging amount of the sensing circuit without frequently adjusting the discharging current of the current source. By using the present invention, discharging time difference between a condition in which a touch event occurs and a condition in which no touch event occurs for each sensing circuit can approach the same.
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