Invention Grant
- Patent Title: Display device with touch detection function, control circuit, driving method of display device with touch detection function, and electronic unit
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Application No.: US13067658Application Date: 2011-06-17
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Publication No.: US09671905B2Publication Date: 2017-06-06
- Inventor: Koji Noguchi , Yoshitoshi Kida , Kohei Azumi
- Applicant: Koji Noguchi , Yoshitoshi Kida , Kohei Azumi
- Applicant Address: JP Tokyo
- Assignee: Japan Display Inc.
- Current Assignee: Japan Display Inc.
- Current Assignee Address: JP Tokyo
- Agency: Michael Best & Friedrich LLP
- Priority: JP2010-187221 20100824
- Main IPC: G06F3/045
- IPC: G06F3/045 ; G06F3/044 ; G06F3/041

Abstract:
A display device with a touch detection function includes, a plurality of display elements performing display operation based on a pixel signal and a display drive signal, a touch detection element detecting an external proximity object based on a touch detection drive signal, a scan drive section performing display scanning by sequentially supplying the pixel signal and the display drive signal to the plurality of display elements in a time-divisional manner, and the scan drive section supplying the touch detection drive signal to the touch detection element, and a touch detection circuit performing touch detection by sampling a detection result from the touch detection element with a period shorter than a period of the display scanning. The scan drive section supplies the touch detection drive signal to the touch detection element in a touch detection operation period different from a display operation period for performing the display scanning.
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