Display device with touch detection function, control circuit, driving method of display device with touch detection function, and electronic unit
First Claim
1. A display device with a touch detection function comprising:
- a plurality of display elements each 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, whereinthe 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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Accused Products
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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Citations
16 Claims
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1. A display device with a touch detection function comprising:
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a plurality of display elements each 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, wherein 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A display device comprising:
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a plurality of display elements; a detection element; and a scan drive section performing display scanning by sequentially supplying a display drive signal to the plurality of display elements, and supplying a detection drive signal to the detection element, wherein the scan drive section supplies the detection drive signal to the detection element in a detection operation period different from a display operation period for performing the display scanning. - View Dependent Claims (12, 13)
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14. A control circuit comprising:
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a scan drive section performing display scanning by sequentially supplying a pixel signal and a display drive signal to a plurality of display elements in a time-divisional manner, and supplying a touch detection drive signal to a touch detection element detecting an external proximity object; 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, wherein 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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15. A driving method of a display device with a touch detection function comprising:
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performing display scanning by sequentially supplying a pixel signal and a display drive signal to a plurality of display elements in a display operation period, and supplying a touch detection drive signal to a touch detection element for detecting an external proximity object, in a touch detection operation period different from the display operation period; and driving the display device with a touch detection function to perform touch detection by sampling a detection result from the touch detection element with a period shorter than a period of the display scanning.
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16. An electronic unit including a display device with a touch detection function and a control section performing operation control with use of the display device with a touch detection function, the display device with a touch detection function comprising:
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a plurality of display elements each 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 of the touch detection element with a period shorter than a period of the display scanning, wherein 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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Specification