Display apparatus, drive circuit, driving method and electronic apparatus
First Claim
Patent Images
1. A display device comprising:
- a display function layer;
pixel electrodes arranged in a row-column configuration;
drive electrodes overlapping the pixel electrodes;
a driver unit configured to drive the pixel electrodes and the drive electrodes to display images and to detect a touch; and
a control unit configured to cause the driver unit to;
divide a frame in which an image is displayed by all of the pixel electrodes into a plurality of display periods, the display period being a period in which the drive electrodes are driven as a common electrode to the pixel electrodes; and
provide a touch period between the display periods, the touch period being a period in which the drive electrode is driven to detect a touch,wherein the driver unit is further configured to;
during the display period, apply a DC drive signal as a common signal to all the drive electrodes,during the touch period, apply an AC driving signal to the drive electrode, the AC driving signal applied in a first touch period is different from the AC driving signal applied in a second touch period after the first touch period.
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Abstract
A display apparatus includes: a display device; a touch detection device; and a driver unit driving the display device so as to sequentially display M horizontal lines in each of plural unit drive periods forming one frame period and driving the touch detection device in N touch detection periods provided in each unit drive period, in which N is lower than M.
17 Citations
17 Claims
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1. A display device comprising:
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a display function layer; pixel electrodes arranged in a row-column configuration; drive electrodes overlapping the pixel electrodes; a driver unit configured to drive the pixel electrodes and the drive electrodes to display images and to detect a touch; and a control unit configured to cause the driver unit to; divide a frame in which an image is displayed by all of the pixel electrodes into a plurality of display periods, the display period being a period in which the drive electrodes are driven as a common electrode to the pixel electrodes; and provide a touch period between the display periods, the touch period being a period in which the drive electrode is driven to detect a touch, wherein the driver unit is further configured to; during the display period, apply a DC drive signal as a common signal to all the drive electrodes, during the touch period, apply an AC driving signal to the drive electrode, the AC driving signal applied in a first touch period is different from the AC driving signal applied in a second touch period after the first touch period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification