发明授权
US08274481B2 Display device with touch sensor, and drive method for the device
有权
具有触摸传感器的显示设备,以及该设备的驱动方法
- 专利标题: Display device with touch sensor, and drive method for the device
- 专利标题(中): 具有触摸传感器的显示设备,以及该设备的驱动方法
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申请号: US11665999申请日: 2005-10-21
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公开(公告)号: US08274481B2公开(公告)日: 2012-09-25
- 发明人: Tomohiko Nishimura , Saburoh Miyamoto , Toshihisa Nakano , Hiroshi Hamada , Takeshi Yamaguchi
- 申请人: Tomohiko Nishimura , Saburoh Miyamoto , Toshihisa Nakano , Hiroshi Hamada , Takeshi Yamaguchi
- 申请人地址: JP Osaka
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: JP Osaka
- 代理机构: Nixon & Vanderhye P.C.
- 优先权: JP2004-308533 20041022; JP2004-308534 20041022
- 国际申请: PCT/JP2005/019391 WO 20051021
- 国际公布: WO2006/043660 WO 20060427
- 主分类号: G06F3/041
- IPC分类号: G06F3/041
摘要:
A touch-sensored display device 20 according to the present invention includes: a counter substrate 6 disposed on a viewer side of an active matrix substrate 8 via a display medium layer 4, the counter substrate 6 having a counter electrode 5 which opposes pixel electrodes; a display panel driving circuit 14 for supplying to the counter electrode 5 a common voltage which undergoes periodic inversion in polarity; a transparent conductive film 7 for position detection placed so as to oppose the counter electrode 5 via the counter substrate 6; a strobe signal generation circuit 32 for generating a strobe signal which is in synchronization with a polarity inversion period of the common voltage, and a noise-cut current signal generation circuit 30 for generating a noise-cut current signal which is obtained by eliminating based on the strobe signal a predetermined portion from a current flowing from a terminal connected to the transparent conductive film 7 for position detection.
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