Pixel circuit, pixel driving method and display device
AssigneesOrdos Yuansheng Optoelectronics Co., Ltd., Boe Technology Group Co., Ltd.
InventorZhichong Wang
Life of this patent
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Abstract
A pixel circuit, a pixel driving method and a display device are provided. The pixel circuit includes a light emitting element, a driving circuit, an energy storage circuit, an initialization circuit, a compensation control circuit, a light emitting control circuit and a written-in control circuit. The initialization circuit writes an initialization voltage into a control end of the driving circuit under the control of a first gate driving signal so as to conduct the connection between a first end of the driving circuit and a second end of the driving circuit; the compensation control circuit is configured to conduct the connection between the control end of the driving circuit and the second end of the driving circuit under the control of the second gate driving signal.
Claims8
A display device comprising a plurality of pixel circuits in N rows and a plurality of columns, wherein N is an integer greater than 1,
- wherein each of the plurality of pixel circuits comprises:
- a driving circuit comprising a control end, a first end and a second end, and configured to connect or disconnect the first end of the driving circuit and the second end of the driving circuit under the control of the control end of the driving circuit;
- an energy storage circuit comprising a first end and a second end, and the first end of the energy storage circuit being connected to the control end of the driving circuit;
- an initialization circuit, electrically connected to a first gate line and configured to write an initialization voltage into the control end of the driving circuit under the control of a first gate driving signal output by the first gate line, so as to control the driving circuit to conduct the connection between the first end of the driving circuit and the second end of the driving circuit;
- a light emitting control circuit, electrically connected to a first light emitting control line and a second light emitting control line, and configured to conduct the connection between the first end of the driving circuit and a first voltage end under control of a first light emitting control signal output by the first light emitting control line, and conduct the connection between the second end of the driving circuit and a first electrode of a light emitting element under control of a second light emitting control signal output by the second light emitting control line;
- a second electrode of the light emitting element being connected to a second voltage end;
- a compensation control circuit, electrically connected to a second gate line and configured to conduct the connection between the control end of the driving circuit and the second end of the driving circuit under the control of a second gate driving signal output by the second gate line;
- a written-in control circuit, electrically connected to the second gate line and the second light emitting control line, and configured to write a data voltage into the second end of the energy storage circuit under the control of the second gate driving signal and write a reference voltage into the second end of the energy storage circuit under the control of the second light emitting control signal;
- a reset circuit, electrically connected to the first gate line and configured to write the initialization voltage into a first electrode of the light emitting element under the control of the first gate driving signal output by the first gate line, so as to enable the light emitting element not to emit light;
- and
- a gate driving circuit,
- wherein the reset circuit is directly connected to the first electrode of the light emitting element,
- wherein the gate driving circuit comprises N stages of gate driving unit circuits;
- the nth stage of the gate driving unit circuit is configured to provide the first gate driving signal and the first light emitting control signal to pixel circuits in the nth row, and provide the second gate driving signal and the second light emitting control signal to pixel circuits in the (n−1) th row, and n is an integer greater than 1 and less than or equal to N;
- the first stage of gate driving unit circuit is configured to provide the first gate driving signal and the first light emitting control signal to pixel circuits in the first row,
- a phase of the first gate driving signal is inverted to a phase of the first light emitting control signal, a phase of the second gate driving signal is inverted to a phase of the second light emitting control signal.
Dependencies are inferred from the claim text.