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Pixel driving circuit and display panel

A pixel drive circuit and electrical connection technology, applied in static indicators, instruments, etc., can solve the problems of complex compensation structure, long time required for compensation, large area occupation, etc., and achieve the effect of simple compensation structure

Active Publication Date: 2022-04-05
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiments of the present application is to provide a pixel driving circuit and a display panel, which can solve the technical problems that the compensation structure of the existing pixel driving circuit is relatively complicated, occupies a large area when designing the layout, and takes a long time for compensation.

Method used

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Embodiment Construction

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0029] The transistors used in all embodiments of this application can be thin film transistors or field effect transistors or other devices with the same characteristics. Since the source and drain of the transistors used here are symmetrical, their source and drain can be interchanged. of. In the embodiment of the present application, in order to distinguish the two poles of the transistor except the gate, one pole is called the source, and the other pole is called the drain. ...

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Abstract

The pixel driving circuit and the display panel provided by the embodiment of the present application use a pixel driving circuit with a 4T1C structure to effectively compensate the threshold voltage of the driving transistor in each pixel, and the time required for compensation is relatively short. The compensation of the pixel driving circuit The structure is relatively simple, so it does not need to occupy a large area during design.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a pixel driving circuit and a display panel. Background technique [0002] The OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) display panel has the advantages of high brightness, wide viewing angle, fast response speed, low power consumption, etc., and has been widely used in the field of high-performance display. Among them, in the OLED display panel, the pixels are arranged in a matrix including multiple rows and columns, and each pixel is usually composed of two transistors and a capacitor, commonly known as 2T1C circuit, but the transistor has the problem of threshold voltage drift, so , the OLED pixel driving circuit needs a corresponding compensation structure. At present, the compensation structure of the OLED pixel drive circuit is relatively complicated, which occupies a large area when designing the layout, which is not conducive to the de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2310/0264G09G3/3233
Inventor 聂诚磊
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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