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US 2018/0005569 A1Published application
Pixel circuit, driving method therefor, and display device
AssigneeBoe Technology Group Co., Ltd.
InventorYunfel LI
Life of this patent
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Abstract
A pixel circuit, a driving method therefor, and a display device. The pixel circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a storage capacitor, and a light-emitting device. The pixel circuit can avoid the influence of drifting of a threshold voltage on brightness uniformity and constancy of a display.
Claims20
A pixel circuit, comprising:
- a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a storage capacitor, and a light emitting device.;
- a gate of the first transistor is connected to a first signal input terminal, a first electrode of the first transistor is connected to a first voltage terminal or a second voltage terminal, and a second electrode of the first transistor is connected to a first electrode of the second transistor;
- a gate of the second transistor is connected to a second signal input terminal, and a second electrode of the second transistor is connected to a first electrode of the eighth transistor;
- a gate of the third transistor is connected to one terminal of the storage capacitor, a first electrode of the third transistor is connected to the first electrode of the eighth transistor, and a second electrode of the third transistor is connected to a first electrode of the fourth transistor;
- a gate of the fourth transistor is connected to the second signal input terminal, and a second electrode of the fourth transistor is connected to a data voltage terminal;
- a gate of the fifth transistor is connected to the second signal input terminal, a first electrode of the fifth transistor is connected to the second voltage terminal, and a second electrode of the fifth transistor is connected to the other terminal of the storage capacitor;
- a gate of the sixth transistor is connected to an enable signal terminal, a first electrode of the sixth transistor is connected to the other terminal of the storage capacitor, and a second electrode of the sixth transistor is connected to a first electrode of the seventh transistor,
- a gate of the seventh transistor is connected to the enable signal terminal, the first electrode of the seventh transistor is connected to a third voltage terminal, and a second electrode of the seventh transistor is connected to the second electrode of the third transistor:
- a gate of the eighth transistor is connected to the enable signal terminal, and a second electrode of the eighth transistor is connected to an anode of the light emitting device;
- and
- a cathode of the light emitting device is connected to a fourth voltage terminal.
8 more elements
Dependencies are inferred from the claim text.