Pixel driving circuit, pixel driving method and display device
A pixel drive circuit and drive circuit technology, applied in static indicators, instruments, etc., can solve problems such as complex technical solutions, and achieve the effect of improving short-term afterimage problems, simple and fast short-term afterimage problems
Active Publication Date: 2021-01-08
BOE TECH GRP CO LTD
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[0004] The main purpose of the present invention is to provide a pixel driving circuit, a pixel driving method and a display device to solve the problem of complex technical solutions for improving short-term afterimage problems
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[0047]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0048] The transistors used in all embodiments of the present invention may be triodes, thin film transistors or field effect transistors or other devices with the same characteristics. In the embodiment of the present invention, in order to distinguish the two poles of the transistor except the control pole, one pole is called the first pole, and the other pole is called the second pole.
[0049] In actual operation, when the transistor is a triode, the contro...
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The invention provides a pixel driving circuit, a pixel driving method and a display device. The pixel driving circuit includes an initialization circuit, a driving circuit and a first light emitting control circuit; the first end of the driving circuit is connected to the power supply voltage end, and the second end of the driving circuit is connected to the first light emitting control circuit through the first light emitting control circuit. The light-emitting element is connected; the initialization circuit is used to write the initialization voltage into the control terminal of the driving circuit under the control of the initialization control signal input by the initialization control line, so that the driving circuit is under the control of the control terminal , to control and conduct the connection between the first terminal and the second terminal; the first light emission control circuit is used to conduct the The connection between the second end of the driving circuit and the light emitting element. The invention solves the problem that the existing technical solutions for improving the short-term afterimage problem are complicated.
Description
technical field [0001] The present invention relates to the technical field of display driving, in particular to a pixel driving circuit, a pixel driving method and a display device. Background technique [0002] Due to the hysteresis effect of the driving transistor, when the existing OLED (Organic Light Emitting Diode) display products turn on the black and white screen for a period of time and then switch to the 48 grayscale screen, afterimages will be found, and then the afterimages will disappear after a period of time, that is, short-term afterimages . [0003] The hysteresis effect is mainly caused by the shift of the threshold voltage of the driving transistor. In the currently used compensation circuit, the gate-source voltage VGS of the driving transistor in the initialization stage is different under different screen switching, resulting in short-term afterimages. The existing technical solution for eliminating short-term afterimages is as follows: by charging an...
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IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0257G09G2320/0271G09G3/3233G09G2300/0819G09G2300/0842G09G2300/0861G09G2310/0251G09G2310/0262G09G3/3258G09G3/3291G09G2320/045
Inventor 高雪岭彭宽军秦纬滕万鹏
Owner BOE TECH GRP CO LTD