Display device and control circuit
AssigneeJapan Display Inc.
InventorsMasanobu Ikeda, Hayato Kurasawa
Life of this patent
Estimating the term…
Abstract
A display device with a touch detection function is provided and includes a display unit that includes a plurality of pixel electrodes, and a plurality of counter electrodes facing the pixel electrodes, and that displays an image at a resolution in accordance with the number of the pixel electrodes; and a controller that alternately executes, in one frame period, a display operation in a display period by driving the pixel electrodes and the counter electrodes, and a touch detection operation in a touch period by driving the counter electrodes, wherein the controller that changes a ratio between the display period and the touch period in the one frame period in accordance with a resolution of an image to be displayed in the one frame period.
Claims18
A display device with a touch detection function comprising:
- a display unit that includes a plurality of pixel electrodes, and a plurality of counter electrodes facing the pixel electrodes, and that displays an image at a resolution in accordance with the number of the pixel electrodes;
- and
- a controller that alternately executes, in one frame period, a display operation in a display period by driving the pixel electrodes and the counter electrodes, and a touch detection operation in a touch period by driving the counter electrodes, wherein
- the controller that changes a ratio between the display period and the touch period in the one frame period in accordance with a resolution of an image to be displayed in the one frame period.
A display device with a touch detection function comprising a display unit that includes a plurality of pixel electrodes and a plurality of counter electrodes facing the pixel electrodes, the display unit displaying an image at a resolution in accordance with the number of the pixel electrodes,
- wherein
- a display operation in a display period by driving the pixel electrodes and the counter electrodes, and a touch detection operation in a touch period by driving the counter electrodes are executed alternately in one frame period, and
- a ratio between the display period and the touch period in the one frame period is changed in accordance with a resolution of an image to be displayed in the one frame period.
A control circuit included in a display unit, the display unit comprising:
- a plurality of pixel electrodes;
- and
- a plurality of counter electrodes facing the pixel electrodes, the display unit being configured to display an image at a resolution in accordance with the number of the pixel electrodes, wherein
- the control circuit alternately executes, in one frame period, a display operation in a display period by driving the pixel electrodes and the counter electrodes, and a touch detection operation in a touch period by driving the counter electrodes, and
- the control circuit changes a ratio between the display period and the touch period in the one frame period in accordance with a resolution of an image to be displayed in the one frame period.
Dependencies are inferred from the claim text.