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

A technology of a pixel driving circuit and driving method, which is applied to static indicators, instruments, etc., can solve the problems of waveform brightness dropping pixel waveform brightness downward, affecting user experience effect, display screen flickering, etc., so as to eliminate potential changes and improve display. effect, effect of stabilizing the luminous brightness

Pending Publication Date: 2022-07-15
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As personal devices become more prevalent, portable and / or wearable devices are being actively developed, and in order to apply a display device to a portable and / or wearable device, the device needs to feature low power consumption; however, using the so far developed technology to obtain displays with excellent low-power performance are limited
For example, in the prior art, in the case of low-frequency display of display products, there is a problem that the waveform brightness of pixels drops downward within one frame, or the waveform brightness of pixels rises upward within one frame, resulting in flickering of the display screen, etc. Problems that affect user experience

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

[0032] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0034] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification.

[0035] In all examples shown and discussed herein, any specific values ​​should be construed as illustrative only and not limiting. Accordingly, other instances of the exemplary embodiment may hav...

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PUM

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Abstract

The invention provides a pixel driving circuit and a driving method thereof, a display panel and a display device, and relates to the technical field of display, the pixel driving circuit comprises a driving transistor, a light-emitting element and at least one switch transistor module; the driving transistor is used for driving the light-emitting element. The gate of the driving transistor is connected with the first node. The switch transistor module comprises a first transistor unit and a second transistor unit which are connected in parallel, one end of the first transistor unit is connected with the first node, and one end of the second transistor unit is connected with the first node; when the switch transistor module jumps from the on state to the off state, a first leakage current potential of the first transistor unit to the first node is opposite to a second leakage current potential of the second transistor unit to the first node; through the offset between the second leakage current and the first leakage current, the influence of the leakage current on the potential of the first node is reduced or eliminated, so that the stable light-emitting effect of the light-emitting element is ensured, and the screen shaking phenomenon of the corresponding display panel is avoided.

Description

technical field [0001] The present invention relates to the field of display technology, and more particularly, to a pixel driving circuit and a driving method thereof, a display panel and a display device. Background technique [0002] Today, with the development of the information society, the requirements for displays that represent information are also getting higher and higher. Therefore, users have higher and higher demands for flat panel displays with small size, light weight and good display effect. [0003] As personal devices become more prevalent, portable and / or wearable devices are being actively developed, and in order to apply a display device to a portable and / or wearable device, the device needs to have low power consumption; however, using the so far developed technology, obtaining displays with excellent low-power performance is limited. For example, in the prior art, in the case of low-frequency display of a display product, the waveform brightness of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/20G09G2300/0819G09G2320/02
Inventor 田雪琦李玥张蒙蒙
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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