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A kind of oled pixel compensation circuit and oled pixel compensation method

A technology for compensating circuits and pixels, applied to instruments, static indicators, etc., can solve the problem of uneven brightness of display panels, achieve the effect of improving brightness uniformity and prolonging service life

Active Publication Date: 2020-12-08
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 this application is to provide an OLED pixel compensation circuit and an OLED pixel compensation method to solve the technical problem of uneven brightness of the display panel

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  • A kind of oled pixel compensation circuit and oled pixel compensation method
  • A kind of oled pixel compensation circuit and oled pixel compensation method
  • A kind of oled pixel compensation circuit and oled pixel compensation method

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0018] see figure 1 , figure 1 is the circuit diagram of the OLED pixel compensation circuit of the present application. The present application firstly provides an OLED pixel compensation circuit, which includes an organic light emitting diode D1, a drive transistor DT, a first thin film transistor T1, a second thin film transistor T2, a third thin film transistor T3, a fourth thin film transistor T4, a A capacitor C1 and a second capacitor C2....

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Abstract

The present application discloses an OLED pixel compensation circuit and an OLED pixel compensation method. The pixel compensation circuit includes: an organic light emitting diode, a driving transistor, a first thin film transistor, a second thin film transistor, a third thin film transistor, a fourth thin film transistor, a A capacitor and a second capacitor. This application increases the top gate voltage of the driving transistor DT by using the internal driving circuit of the pixel with a 5T2C structure and the driving transistor DT is a double-gate thin film transistor, thereby compensating the threshold voltage drift of the driving transistor DT, thereby improving the brightness uniformity of the display panel , thereby prolonging the service life of the product.

Description

technical field [0001] The present application relates to the field of display technology, in particular to an OLED pixel compensation circuit and an OLED pixel compensation method. Background technique [0002] In the OLED (Organic Light Emitting Display, Organic Light Emitting Diode) display panel, due to the limitation of the manufacturing process, there are certain differences in the electrical characteristics of each driving transistor, and the driving transistor is unstable during operation, and is easily affected by factors such as temperature and light. The characteristic drift, the spatial electrical characteristic difference and the temporal characteristic drift of the driving transistor will all cause the unevenness of the display. Contents of the invention [0003] The purpose of the present application is to provide an OLED pixel compensation circuit and an OLED pixel compensation method to solve the technical problem of uneven brightness of a display panel. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3258
CPCG09G3/3258G09G2320/0233G09G2300/0819G09G3/3233G09G2310/0262G09G2300/0852G09G2320/0295G09G2310/08G09G2310/0251G09G2320/045G09G3/3208G09G2300/0842
Inventor 田凡王振岭
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD