Invention Grant
- Patent Title: Touch detection device and display device with touch detection function
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Application No.: US15133785Application Date: 2016-04-20
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Publication No.: US09916056B2Publication Date: 2018-03-13
- Inventor: Yasuyuki Teranishi , Koji Noguchi , Satoru Noguchi
- Applicant: Japan Display Inc.
- Applicant Address: JP Tokyo
- Assignee: Japan Display Inc.
- Current Assignee: Japan Display Inc.
- Current Assignee Address: JP Tokyo
- Agency: K&L Gates LLP
- Priority: JP2015-088790 20150423
- Main IPC: G06F3/045
- IPC: G06F3/045 ; G06F3/044 ; G06F3/041

Abstract:
A touch detection device includes: drive electrodes that extend in a first direction and are arranged in a second direction intersecting with the first direction; detection electrodes that extend in the second direction and are arranged in the first direction to form capacitance at intersections with the drive electrodes; a driving and scanning unit that sequentially and time-divisionally selects a predetermined number of drive target electrodes to which drive signals are applied from the drive electrodes, and performs driving and scanning at a pitch smaller than a total width of a drive range including the drive target electrodes; and a coordinate correction unit that uses correction information based on a relationship between an input position at which an external object is in proximity to or in contact with a touch detection surface and a detection position detected by the detection electrodes to correct the detection position in the first direction.
Public/Granted literature
- US20160313829A1 TOUCH DETECTION DEVICE AND DISPLAY DEVICE WITH TOUCH DETECTION FUNCTION Public/Granted day:2016-10-27
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