发明名称 TOUCH SENSOR CIRCUIT AND TOUCH DISPLAY DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a touch sensor circuit and a touch display device the charging efficiency and the sensing efficiency of which can be improved.SOLUTION: The touch sensor circuit includes a charging capacitor, a first current supplying unit, a second current supplying unit, and a switch unit. The charging capacitor is serially connected between a detecting terminal and a reference voltage. The first current supplying unit is coupled to the detecting terminal, and receives a first bias voltage signal, and generates a first charging current at the detecting terminal on the basis of the first bias voltage signal. The second current supplying unit is coupled to the detecting terminal, and receives a second bias voltage signal, and generates a second charging current at the detecting terminal on the basis of the second bias voltage signal. The second terminal and a third terminal of the switch respectively supply the first and the second bias voltage signal.
申请公布号 JP2014071885(A) 申请公布日期 2014.04.21
申请号 JP20130006854 申请日期 2013.01.18
申请人 PRINCETON TECHNOLOGY CORP 发明人 HSIEH CHIN-I
分类号 G06F3/044;G06F3/041 主分类号 G06F3/044
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