Pixel driving circuit, driving method thereof and display device

A technology of pixel driving circuit and driving sub-circuit, which is applied in static indicators, instruments, etc., can solve the problems of high leakage current and increased power consumption of driving chips, and achieve the effect of saving power consumption and prolonging lighting time.

Active Publication Date: 2020-09-25
BOE TECH GRP CO LTD +1
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Problems solved by technology

[0004] The present disclosure provides a pixel driving circuit, its driving method, and a display device to solve the problem of increased po

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

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[0052] 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.

[0053] 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, a driving method thereof and a display device, and aims to solve the problem that the power consumption of a driving chip is increased due to high leakage current of a thin film transistor in an existing pixel driving circuit. The pixel driving circuit comprises an electric leakage suppression sub-circuit, an input sub-circuit, a driving sub-circuitand an energy storage sub-circuit. The electric leakage suppression sub-circuit transmits a reference signal to the first node and resets the voltage of the first node. The input sub-circuit transmitsthe data signal to a second node. The driving sub-circuit generates a compensation signal according to the data voltage from the second node and transmits a compensation signal to the energy storagesub-circuit. And the energy storage sub-circuit stores the compensation signal from the driving sub-circuit and controls the driving sub-circuit to open according to the stored compensation signal. And the electric leakage suppression sub-circuit is also closed under the control of the non-working level of the electric leakage control signal in the light emitting stage to suppress the electric leakage of the first node. The pixel driving circuit is used for driving a light emitting device to emit light 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, a driving method thereof, and a display device. Background technique [0002] Organic Light-Emitting Diode (OLED) display devices have the characteristics of self-illumination, wide viewing angle, high contrast ratio, fast response speed, low power consumption, ultra-thin and light, etc., and have been widely used. [0003] The OLED display device includes a plurality of sub-pixels, each sub-pixel includes a pixel driving circuit for driving the OLED light-emitting device to emit light, and the pixel driving circuit includes a plurality of thin film transistors. In the pixel driving circuit of the existing OLED display device, the thin film transistors mostly adopt LTPS (full name in English: Low Temperature Poly Silicon, Chinese name: low temperature polysilicon) type thin film transistors, but due to the high leakage current of the LTPS th...

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Application Information

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IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G3/3233G09G2300/0819G09G2300/0842G09G2300/0861G09G2320/0238G09G3/3258G09G3/3266G09G3/3275G09G2310/0278
Inventor 曹鑫朱亚威金兴植胡静王子峰徐海峰樊浩原
Owner BOE TECH GRP CO LTD
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