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Pixel driving circuit, driving method thereof and display panel

A pixel drive circuit and drive transistor technology, applied in static indicators, instruments, etc., can solve problems such as flickering easily, and achieve the effect of improving display quality and grid voltage instability

Active Publication Date: 2021-07-20
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a pixel driving circuit, a driving method thereof, and a display panel, which can improve the flicker phenomenon that occurs easily when the display panel is displayed in a low-frequency driving mode

Method used

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

Examples

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Embodiment Construction

[0017] Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, those skilled in the art are in the range of the present invention in the scope of the present invention without all other embodiments obtained without creative labor. In addition, it should be understood that the specific embodiments described herein are intended to illustrate and explain the invention and is not intended to limit the invention. Detailed description will be taken below. It should be noted that the order sequence of the following examples is not limited as the preferred order of the embodiments.

[0018] See Figures 1A ~ 1D It is a schematic diagram of a circuit structure of a pixel driving circuit provided by the emb...

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Abstract

The embodiment of the invention discloses a pixel driving circuit, a driving method thereof and a display panel. The pixel driving circuit comprises a light-emitting device, a driving transistor and a switching transistor. An active layer of the switching transistor comprises an oxide semiconductor, and the switching transistor is connected between a grid electrode of the driving transistor and an initialization voltage end and is connected between the grid electrode of the driving transistor and one of a source electrode or a drain electrode of the driving transistor. According to the first light-emitting control signal, an initialization signal or a data signal with a threshold voltage compensation function is transmitted to the grid electrode of the driving transistor, and the problem that the light-emitting device emits light unevenly due to the fact that the voltage of the grid electrode of the driving transistor is unstable is solved through the low leakage current characteristic of the switching transistor. The problem that a flicker phenomenon is easy to occur when the display panel adopts a low-frequency driving mode to display is solved, and the display quality of the display panel is improved.

Description

Technical field [0001] The present invention relates to the field of display, and more particularly to a pixel drive circuit and a driving method thereof, a display panel. Background technique [0002] When the pixel drive circuit drives the light-emitting device to illuminate, the gate potential change in the pixel drive circuit can easily cause the light-emitting device to illuminate unstable. In particular, the flashing phenomenon occurs when the display panel is displayed in a low frequency drive mode, affecting the display quality of the display panel. Inventive content [0003] The embodiment of the present invention provides a pixel driving circuit and a driving method thereof, a display panel, can improve the problem of flickering phenomena when displaying a low frequency drive mode. [0004] Embodiments of the present invention provide a pixel driving circuit including: a light emitting device, a driving transistor, a data transistor, a switching transistor, and a lumin...

Claims

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Application Information

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IPC IPC(8): G09G3/32G09G3/3208G09G3/3291G09G3/3266
CPCG09G3/32G09G3/3208G09G3/3291G09G3/3266G09G3/3233G09G2300/0819G09G2300/0861G09G2300/0842G09G2310/0262G09G2310/0251G09G2320/0247G09G2310/0216G09G2310/0278G09G2330/021
Inventor 王选芸戴超
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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