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US 11,238,784 B1Granted
Pixel circuit and display panel
AssigneeWuhan China Star Optoelectronics Technology Co., Ltd.
InventorYongxiang Zhou
Life of this patent
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Abstract
A pixel circuit and a display panel are provided, which include a first driving transistor, a second driving transistor, a first switching transistor, and a second switching transistor. By controlling the first driving transistor and the second driving transistor to work alternately by the first switching transistor and the second switching transistor, work period of the first driving transistor and/or the second driving transistor can be reduced, being able to improve stability of the driving transistors.
Claims20
A pixel circuit, comprising:
- a first driving transistor coupled in series with a light emitting circuit constituted by a first power supply terminal of a first power supply signal and a second power supply terminal of a second power supply signal and configured to control an electric current flow through the light emitting circuit;
- a second driving transistor parallelly connected to the first driving transistor and coupled in series with the light emitting circuit and configured to control the electric current flow through the light emitting circuit;
- a first switching transistor, wherein an output terminal of the first switching transistor is connected to a control terminal of the first driving transistor, and the first driving transistor is configured to control the first driving transistor according to a first control signal;
- and
- a second switching transistor, wherein an output terminal of the second switching transistor is connected to a control terminal of the second driving transistor, and the second switching transistor controls the second driving transistor according to a second control signal,
- wherein the first control signal is different from the second control signal, and when one of the first driving transistor or the second driving transistor is turned off, another one of the first driving transistor or the second driving transistor is turned on.
3 more elements
Dependencies are inferred from the claim text.