Invention Grant
- Patent Title: Touch panel, display panel, and display unit
- Patent Title (中): 触摸面板,显示面板和显示单元
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Application No.: US12788508Application Date: 2010-05-27
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Publication No.: US09122357B2Publication Date: 2015-09-01
- Inventor: Takayuki Nakanishi , Koji Noguchi , Koji Ishizaki , Yasuyuki Teranishi , Takeya Takeuchi
- Applicant: Takayuki Nakanishi , Koji Noguchi , Koji Ishizaki , Yasuyuki Teranishi , Takeya Takeuchi
- Applicant Address: JP Tokyo
- Assignee: JAPAN DISPLAY INC.
- Current Assignee: JAPAN DISPLAY INC.
- Current Assignee Address: JP Tokyo
- Agency: Dentons US LLP
- Priority: JP2009-136507 20090605
- Main IPC: G06F3/045
- IPC: G06F3/045 ; G06F3/044 ; G09G3/298 ; G06F3/0354 ; H01J11/12 ; G06F3/047

Abstract:
A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise, are provided. The touch panel includes: a plurality of detection scan electrodes extending in a first direction; and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. A ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and a first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and a second detection electrode. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes.
Public/Granted literature
- US20100309162A1 TOUCH PANEL, DISPLAY PANEL, AND DISPLAY UNIT Public/Granted day:2010-12-09
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