发明申请
- 专利标题: DISPLAY DEVICE AND ELECTRONIC UNIT
- 专利标题(中): 显示设备和电子单元
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申请号: US12771759申请日: 2010-04-30
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公开(公告)号: US20100289765A1公开(公告)日: 2010-11-18
- 发明人: Kouji Noguchi , Koji Ishizaki , Takayuki Nakanishi , Takeya Takeuchi , Yasuyuki Teranishi
- 申请人: Kouji Noguchi , Koji Ishizaki , Takayuki Nakanishi , Takeya Takeuchi , Yasuyuki Teranishi
- 申请人地址: JP Tokyo
- 专利权人: SONY CORPORATION
- 当前专利权人: SONY CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP2009-120222 20090518
- 主分类号: G06F3/041
- IPC分类号: G06F3/041
摘要:
The display device with high detection accuracy includes: display pixel electrodes; a common electrode; a display function layer; a display control circuit performing image display control by applying a pixel voltage to each of the display pixel electrodes and applying a common drive voltage to the common electrode, the common drive voltage inverting in synchronization with a drive cycle of the image display control; a touch detection electrode cooperating with the common electrode to form a capacitor; and a touch detection circuit detecting an external proximity object, based on a detection signal obtained from the touch detection electrode in response to the common drive voltage applied to the common electrode. The touch detection circuit performs the detection operation in a inversion period following an inversion timing of the common drive voltage, based on both first and second detection signals obtained before and after the inversion timing, respectively.
公开/授权文献
- US09140922B2 Display device and electronic unit 公开/授权日:2015-09-22
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