Invention Grant
- Patent Title: Touch panel, display panel, and display unit
-
Application No.: US16166810Application Date: 2018-10-22
-
Publication No.: US11029794B2Publication Date: 2021-06-08
- Inventor: Takayuki Nakanishi , Koji Noguchi , Koji Ishizaki , Yasuyuki Teranishi , Takeya Takeuchi
- Applicant: Japan Display Inc.
- 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: G06F3/044
- IPC: G06F3/044 ; G09G3/298 ; H01J11/12 ; G06F3/047 ; G09G3/36 ; G06F3/0354 ; G06F3/041 ; G02F1/1343

Abstract:
A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise. 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
- US20190057669A1 TOUCH PANEL, DISPLAY PANEL, AND DISPLAY UNIT Public/Granted day:2019-02-21
Information query