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US 2019/0164495 A1Published application
Display device
AssigneeJapan Display Inc.
InventorMasahiro KUBOTA
Life of this patent
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Abstract
A display device includes a display area including a plurality of pixels arrayed next to one another in a first direction and in a second direction that is different from the first direction, and a control circuit, wherein each of the pixels includes a light-emitting element configured to emit light by a current flowing therethrough, a drive transistor, a shut-off transistor, and a holding capacitance.
Claims12
A display device comprising:
- a display area including a plurality of pixels arrayed next to one another in a first direction and in a second direction that is different from the first direction;
- and
- a control circuit, wherein
- each of the pixels includes
- a light-emitting element configured to emit light by a current flowing therethrough,
- a drive transistor,
- a shut-off transistor, and
- a holding capacitance,
- while one terminal of the light-emitting element is coupled to one of a source and a drain of the drive transistor, a first potential is supplied to the other terminal of the light-emitting element,
- a second potential that is higher than the first potential is supplied to the other one of the source and the drain of the drive transistor via the shut-off transistor,
- the shut-off transistor supplies or shuts off the second potential to the drive transistor,
- the holding capacitance is coupled between the source and a gate of the drive transistor, and
- the control circuit
- controls the shut-off transistor to have the shut-off transistor on, thereby supplying the second potential to the drive transistor and writing an initialization potential into the gate of the drive transistor,
- thereafter controls the shut-off transistor to have the shut-off transistor off, thereby shutting off supply of the second potential,
- writes a video writing potential resulting from a video signal into the gate of the drive transistor, and
- sets the initialization potential in a manner such that, as a luminance set value for luminance of the video signal is smaller, a potential difference between the source and the gate of the drive transistor is larger.
14 more elements
Dependencies are inferred from the claim text.