Sensor-equipped display device
First Claim
1. A sensor-equipped display device comprising:
- a display panel comprising a first electrode, a second electrode spaced apart from the first electrode and extending in parallel to the first electrode, and a detection electrode;
a first driver configured to deliver a common driving signal to the first electrode and the second electrode at a time of display driving for displaying an image, and to selectively write a write signal to one of the first electrode or the second electrode at a time of sensing driving for executing sensing;
a second driver configured to read, from the detection electrode, a read signal indicative of a variation of a sensor signal occurring between the one of the first electrode or the second electrode, on one hand, and the detection electrode, on the other hand, at the time of the sensing driving; and
a third driver,wherein the display panel further comprises a lead line connected to the first driver, a first switching element connecting the lead line with the first electrode, and a second switching element connecting the lead line with the second electrode, andthe third driver is configured to change over the first switching element and the second switching element to a conductive state at the time of the display driving, and to selectively change over one of the first switching element or the second switching element to a conductive state and an opposing one of the first switching element or the second switching element to a non-conductive state at the time of the sensing driving.
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Accused Products
Abstract
According to one embodiment, a sensor-equipped display device includes a display panel, a first driver, and a second driver. The display panel includes a first electrode, a second electrode and a detection electrode. The first driver delivers a common driving signal to the first electrode and the second electrode at a time of display driving, and selectively writes a write signal to one of the first electrode and the second electrode at a time of sensing driving. The second driver reads, from the detection electrode, a read signal indicative of a variation of a sensor signal occurring between the one of the first electrode and the second electrode, on one hand, and the detection electrode, on the other hand, at the time of the sensing driving.
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Citations
7 Claims
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1. A sensor-equipped display device comprising:
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a display panel comprising a first electrode, a second electrode spaced apart from the first electrode and extending in parallel to the first electrode, and a detection electrode; a first driver configured to deliver a common driving signal to the first electrode and the second electrode at a time of display driving for displaying an image, and to selectively write a write signal to one of the first electrode or the second electrode at a time of sensing driving for executing sensing; a second driver configured to read, from the detection electrode, a read signal indicative of a variation of a sensor signal occurring between the one of the first electrode or the second electrode, on one hand, and the detection electrode, on the other hand, at the time of the sensing driving; and a third driver, wherein the display panel further comprises a lead line connected to the first driver, a first switching element connecting the lead line with the first electrode, and a second switching element connecting the lead line with the second electrode, and the third driver is configured to change over the first switching element and the second switching element to a conductive state at the time of the display driving, and to selectively change over one of the first switching element or the second switching element to a conductive state and an opposing one of the first switching element or the second switching element to a non-conductive state at the time of the sensing driving. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification