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Pixel driving circuit and method, driving substrate and display panel

A pixel driving circuit and circuit technology, applied in the field of pixel driving circuit, driving substrate and display panel, can solve the problems of uneven pixel brightness, poor display effect, and poor consistency of the display panel, so as to improve the uniformity and effect, improve Write speed, high resolution effect

Pending Publication Date: 2022-02-11
CHONGQING KONKA PHOTOELECTRIC TECH RES INST CO LTD
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Problems solved by technology

[0004] In view of the deficiencies of the above-mentioned related technologies, the purpose of this application is to provide a pixel driving circuit, method, driving substrate and display panel, aiming to solve the uneven brightness of each pixel in the display panel caused by the poor consistency of the threshold voltage of the driving transistor in the display panel , displaying poorly

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

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Embodiment Construction

[0048] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Preferred embodiments of the application are shown in the accompanying drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the application more thorough and comprehensive.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the application is only for the purpose of describing specific embodiments, and is not intended to limit the application.

[0050] In order to solve the problem of uneven display brightness caused by the p...

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Abstract

The invention relates to a pixel driving circuit and method, a driving substrate and a display panel, wherein the method comprises the steps that: a threshold voltage of a driving transistor is captured and stored through a first capacitor in a threshold capturing stage, and voltage data is written in a data writing stage; in the light emitting stage, the source electrode voltage which can reflect the threshold voltage driving transistor is coupled to a grid electrode of the driving transistor, so that the influence of the threshold voltage in the grid source voltage of the driving transistor is eliminated, the uniformity degree of the brightness of each pixel in the display panel is improved, and the display effect of the display panel is enhanced. And moreover, threshold grabbing does not need to be carried out during data writing, so that the writing speed of data voltage is increased, and high resolution can be realized favourably. In addition, the pixel driving circuit is simple in structure, the number of contained transistors is small, and the influence of element layout in the driving substrate on the transparency of the driving substrate can be reduced.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a pixel driving circuit, a method, a driving substrate and a display panel. Background technique [0002] The pixels in the display panel are driven to emit light by the current generated by the driving transistor in a saturated state, but the current manufacturing process is difficult to ensure the consistency of the threshold voltage of each driving transistor in the display panel, and the threshold voltage of the driving transistor during use The voltage will also drift to different degrees, which will lead to certain differences in the conversion of input voltage to current by each driving transistor, which will lead to uneven brightness of each pixel in the display panel and poor display effect. [0003] Therefore, how to solve the problem of non-uniform brightness of each pixel in the display panel caused by the poor uniformity of the threshold voltages of the dr...

Claims

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Application Information

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IPC IPC(8): G09G3/20
CPCG09G3/20G09G2320/0233
Inventor 杨轩张逵林建宏
Owner CHONGQING KONKA PHOTOELECTRIC TECH RES INST CO LTD
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