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Pixel driving circuit and driving method thereof, display panel and display device

A pixel driving circuit and driving sub-circuit technology, applied in static indicators, instruments, etc., can solve problems such as insufficient capacitor voltage retention rate, unstable luminance of light-emitting devices, etc., to reduce visual flickering, improve display effect, Improved stability and durability

Active Publication Date: 2020-09-04
BOE TECH GRP CO LTD
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Problems solved by technology

[0003] The present disclosure provides a pixel driving circuit and its driving method, a display panel and a display device, so as to solve the problem that the voltage retention rate of the capacitor in the existing pixel driving circuit is not sufficient, which causes the luminance of the light emitting device to be unstable

Method used

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  • Pixel driving circuit and driving method thereof, display panel and display device
  • Pixel driving circuit and driving method thereof, display panel and display device
  • Pixel driving circuit and driving method thereof, display panel and display device

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Embodiment Construction

[0094] The technical solutions in some embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments provided in the present disclosure belong to the protection scope of the present disclosure.

[0095] Throughout the specification and claims, unless the context requires otherwise, the term "comprise" and other forms such as the third person singular "comprises" and the present participle "comprising" are used Interpreted as the meaning of openness and inclusion, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific examples" example)" or "some examples" and the like are intended...

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Abstract

The invention provides a pixel driving circuit and a driving method thereof, a display panel and a display device, is applied to the technical field of display, solves the problem that the voltage retention rate of a capacitor in a conventional pixel driving circuit is insufficient. The pixel driving circuit comprises an energy storage sub-circuit, a reset sub-circuit, a compensation sub-circuit,a driving sub-circuit and an electric leakage suppression sub-circuit, wherein the energy storage sub-circuit is coupled with a first node and a second node; the reset sub-circuit is coupled with thesecond node, a first scanning time sequence signal end and an initialization signal end; the compensation sub-circuit is coupled with the second node, a third node and a second scanning time sequencesignal end; the driving sub-circuit is coupled with the second node, the third node and the first voltage signal end; and the electric leakage suppression sub-circuit is coupled with the energy storage sub-circuit, the reset sub-circuit and the compensation sub-circuit. The electric leakage suppression sub-circuit is configured to suppress electric leakage of the energy storage sub-circuit in theprocess of generating and transmitting the driving signal by the driving sub-circuit. The pixel driving circuit is used in the display device.

Description

technical field [0001] The present disclosure relates to the field of display technology, and in particular to a pixel driving circuit and a driving method thereof, a display panel and a display device. Background technique [0002] Currently, OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) display devices are widely used due to their characteristics of self-luminescence, fast response, wide viewing angle, and being able to be fabricated on flexible substrates. OLED display devices include multiple sub-pixels Each sub-pixel includes a pixel driving circuit and a light emitting device, and the pixel driving circuit drives the light emitting device to emit light, thereby realizing display. Contents of the invention [0003] The present disclosure provides a pixel driving circuit and its driving method, a display panel and a display device, so as to solve the problem that the voltage retention rate of the capacitor in the existing pixel driving circuit is no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0233G09G3/3233G09G2300/0852G09G2320/0247G09G2300/0861G09G2300/0819G09G2310/0251G09G2310/0262G09G3/3258G09G2310/061G09G2320/043G09G2320/0214G09G2320/0238
Inventor 皇甫鲁江王丽郑灿董甜刘利宾
Owner BOE TECH GRP CO LTD
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