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Pixel driving circuit and control method thereof, display screen and display equipment

A pixel drive circuit and drive current technology, applied in static indicators, instruments, etc., can solve problems such as difficult to maintain display stability, long time, small battery capacity, etc., and achieve the effect of improving display stability

Pending Publication Date: 2021-12-14
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The battery capacity of mobile terminals is usually small. Therefore, people set a variable frame rate mode for mobile terminals, and the frequency range is as low as 1Hz and as high as 140Hz. In the low-frequency display mode, the data retention period is longer. Based on existing Advanced OLED display drive circuit, it is difficult to maintain display stability

Method used

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  • Pixel driving circuit and control method thereof, display screen and display equipment
  • Pixel driving circuit and control method thereof, display screen and display equipment
  • Pixel driving circuit and control method thereof, display screen and display equipment

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Embodiment Construction

[0026] In order to facilitate understanding of the embodiments of the present application, the following will describe the embodiments of the present application more comprehensively with reference to related drawings. A preferred embodiment of the embodiments of the application is given in the accompanying drawings. However, the embodiments of the present application can be implemented in many different forms, and are not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the embodiments of the present application more thorough and comprehensive.

[0027] 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 of the embodiments of this application. The terms used herein in the description of the embodiments of the present application are only for the purpose of describing specific emb...

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Abstract

The embodiment of the invention relates to a pixel driving circuit and a control method thereof, a display screen and display equipment. The pixel driving circuit comprises a driving transistor which is provided with a first electrode and a second electrode, and is used for receiving a data signal in a data refreshing stage, and generating a driving current according to the data signal, wherein the second electrode is used for outputting the driving current to a light-emitting device in the data refreshing stage and the data holding stage so as to drive the light-emitting device to emit light; and a low-frequency initialization transistor, wherein the first electrode of the low-frequency initialization transistor is connected with the first electrode of the driving transistor, and the second electrode of the low-frequency initialization transistor is used for receiving a third initialization signal in the data retention stage, wherein the low-frequency initialization transistor is used for initializing the driving transistor according to the third initialization signal, so that the fluctuation value of the driving current in the data refreshing stage and the data holding stage is within a preset range.

Description

technical field [0001] The embodiments of the present application relate to the field of display technology, and in particular to a pixel driving circuit and a control method thereof, a display screen and a display device. Background technique [0002] With the continuous development of display technology, the display technology has been successively applied to various mobile terminals, such as mobile phones, tablet computers and various wearable devices. The battery capacity of mobile terminals is usually small. Therefore, people set a variable frame rate mode for mobile terminals, and the frequency range is as low as 1Hz and as high as 140Hz. In the low-frequency display mode, the data retention period is longer. Based on existing It is difficult to maintain display stability due to advanced OLED display drive circuits. Contents of the invention [0003] Embodiments of the present application provide a pixel driving circuit and its control method, a display screen and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2310/0243G09G2310/0264G09G2320/0233
Inventor 孔祥永高延凯
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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