ORGANIC EL DISPLAY DEVICE AND METHOD FOR DETECTING TOUCH
First Claim
1. An organic EL display device comprising:
- a pixel circuit on a first substrate; and
a touch detection circuit adjacent to the pixel circuit on the first substrate,wherein the pixel circuit comprises;
an organic EL light-emitting element configured to emit light having brightness depending on a pixel voltage supplied by a pixel signal line;
a drive element configured to drive the organic EL light-emitting element; and
a first select element configured to supply the pixel voltage to the drive element in synchronization with a control signal supplied by a control signal line,the touch detection circuit comprises;
a touch detection capacitor configured to detect a presence/absence of a touch of a dielectric; and
a second select element configured to output a signal indicative of the presence/absence of the touch of the dielectric detected by the touch detection capacitor to an electrostatic signal line in synchronization with the control signal supplied by the control signal line.
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Accused Products
Abstract
According to one embodiment, an organic EL display device has a pixel circuit on a first substrate and a touch detection circuit adjacent to the pixel circuit on the first substrate. The pixel circuit has an organic EL light-emitting element configured to emit light having brightness depending on a pixel voltage supplied by a pixel signal line, a drive element configured to drive the organic EL light-emitting element, and a first select element configured to supply the pixel voltage to the drive element in synchronization with a control signal supplied by a control signal line. The touch detection circuit has a touch detection capacitor configured to detect a presence/absence of a touch of a dielectric and a second select element configured to output a signal indicative of the presence/absence of the touch of the dielectric detected by the touch detection capacitor to an electrostatic signal line in synchronization with the control signal supplied by the control signal line.
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Citations
20 Claims
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1. An organic EL display device comprising:
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a pixel circuit on a first substrate; and a touch detection circuit adjacent to the pixel circuit on the first substrate, wherein the pixel circuit comprises; an organic EL light-emitting element configured to emit light having brightness depending on a pixel voltage supplied by a pixel signal line; a drive element configured to drive the organic EL light-emitting element; and a first select element configured to supply the pixel voltage to the drive element in synchronization with a control signal supplied by a control signal line, the touch detection circuit comprises; a touch detection capacitor configured to detect a presence/absence of a touch of a dielectric; and a second select element configured to output a signal indicative of the presence/absence of the touch of the dielectric detected by the touch detection capacitor to an electrostatic signal line in synchronization with the control signal supplied by the control signal line. - View Dependent Claims (2, 3)
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4. An organic EL display device comprising:
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a plurality of pixel circuits on a first substrate, each of the pixel circuits emitting different colored light; and a touch detection circuit adjacent to one of the pixel circuits on the first substrate, wherein each of the pixel circuits comprises; an organic EL light-emitting element configured to emit light having brightness depending on a pixel voltage supplied by a pixel signal line; a drive element configured to drive the organic EL light-emitting element; and a first select element configured to supply the pixel voltage to the drive element, in at least one of the pixel circuits, the pixel voltage is supplied to the drive element in synchronization with a first control signal supplied by a first control line, and in at least another of the other pixel circuits, the pixel voltage is supplied to the drive element in synchronization with a second control signal supplied by a second control line, the touch detection circuit comprises; a touch detection capacitor configured to detect a presence/absence of a touch of a dielectric; and a second select element configured to output a signal indicative of the presence/absence of the touch of the dielectric detected by the touch detection capacitor to an electrostatic signal line in synchronization with the first control signal supplied by the first control signal line. - View Dependent Claims (5, 6, 7, 8, 9)
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10. An organic EL display device comprising:
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a substrate; a touch detection capacitor on the substrate configured to detect a presence/absence of a touch of a dielectric; a first electrode on the substrate; an organic EL light-emitting element on the first electrode; and a second electrode on the organic EL light-emitting element and above at least a part of the substrate, the second electrode having an opening above the touch detection capacitor. - View Dependent Claims (11, 12, 13, 14)
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15. A method for detecting a touch of a dielectric using an organic EL display device comprising a touch detection capacitor, an organic EL light-emitting element, and a drive element configured to drive the organic EL light-emitting element, the touch detection capacitor, the organic EL light-emitting element and the drive element are formed on a first substrate, comprising:
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pre-charging a first terminal of the touch detection capacitor by supplying a first signal; and supplying a pixel voltage to the drive element and reading out a signal indicative of a presence/absence of the touch of the dielectric by supplying a second signal, the signal being based on a voltage of the first terminal. - View Dependent Claims (16, 17, 18, 19)
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20. A method for detecting a touch of a dielectric using an organic EL display device comprising a touch detection capacitor, an organic EL light-emitting element, and a drive element configured to drive the organic EL light-emitting element, the touch detection capacitor, the organic EL light-emitting element and the drive element are formed on a first substrate, comprising:
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pre-charging a first terminal of the touch detection capacitor and resetting a control terminal of the drive element at a predetermined voltage by supplying a first signal; reading out a signal indicative of a presence/absence of the touch of the dielectric while supplying a predetermined voltage to a second terminal of the touch detection capacitor, by supplying a second signal the signal being based on a voltage of the first terminal; and supplying a pixel voltage to the drive element by supplying a third signal.
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Specification