发明名称 |
Display device with touch sensor, and drive method for the device |
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. |
申请公布号 |
US8274481(B2) |
申请公布日期 |
2012.09.25 |
申请号 |
US20050665999 |
申请日期 |
2005.10.21 |
申请人 |
NISHIMURA TOMOHIKO;MIYAMOTO SABUROH;NAKANO TOSHIHISA;HAMADA HIROSHI;YAMAGUCHI TAKESHI;SHARP KABUSHIKI KAISHA |
发明人 |
NISHIMURA TOMOHIKO;MIYAMOTO SABUROH;NAKANO TOSHIHISA;HAMADA HIROSHI;YAMAGUCHI TAKESHI |
分类号 |
G06F3/041 |
主分类号 |
G06F3/041 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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