Display device including touch sensor and driving method thereof
AssigneeSamsung Display Co., Ltd.
InventorJi Woong Kim
Life of this patent
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Abstract
A display device may include: a first touch sensor including first sensing electrodes and second sensing electrodes, arranged in a sensing area intersecting each other; a display panel including: pixels arranged in a display area overlapping with the sensing area; and a second touch sensor including photo sensors disposed between the pixels or in the pixels; and a driving circuit configured to drive the first touch sensor and the display panel, wherein the driving circuit may be configured to detect a touch input by comparing a first touch detection value detected by the first touch sensor and a second touch detection value detected by the photo sensors.
Claims20
A display device comprising:
- a first touch sensor comprising first sensing electrodes and second sensing electrodes, arranged in a sensing area intersecting each other;
- a display panel comprising:
- pixels arranged in a display area overlapping with the sensing area;
- and
- a second touch sensor comprising photo sensors disposed between the pixels or in the pixels;
- and
- a driving circuit configured to drive the first touch sensor and the display panel,
- wherein the driving circuit is configured to detect a touch input by comparing a first touch detection value detected by the first touch sensor and a second touch detection value detected by the photo sensors.
A method for driving a display device comprising a first touch sensor comprising first and second sensing electrodes arranged in a sensing area to intersect each other and a second touch sensor comprising photo sensors arranged together with pixels in a display area overlapping with the sensing area, the method comprising:
- acquiring a first touch detection value, in response to a first sensing signal received from the first touch sensor while driving the first touch sensor;
- acquiring a second touch detection value, in response to a second sensing signal received from the photo sensors during a period in which the first touch sensor is driven;
- and
- detecting a touch input by comparing the first touch detection value and the second touch detection value.
Dependencies are inferred from the claim text.