Invention Grant
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
- Patent Title: Display device with touch sensor, and drive method for the device
- Patent Title (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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Application No.: US11665999Application Date: 2005-10-21
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Publication No.: US08274481B2Publication Date: 2012-09-25
- Inventor: Tomohiko Nishimura , Saburoh Miyamoto , Toshihisa Nakano , Hiroshi Hamada , Takeshi Yamaguchi
- Applicant: Tomohiko Nishimura , Saburoh Miyamoto , Toshihisa Nakano , Hiroshi Hamada , Takeshi Yamaguchi
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Nixon & Vanderhye P.C.
- Priority: JP2004-308533 20041022; JP2004-308534 20041022
- International Application: PCT/JP2005/019391 WO 20051021
- International Announcement: WO2006/043660 WO 20060427
- Main IPC: G06F3/041
- IPC: G06F3/041

Abstract:
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.
Public/Granted literature
- US20070262966A1 Display Device with Touch Sensor, and Drive Method for the Device Public/Granted day:2007-11-15
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