Pixel circuit and control method thereof, array substrate and display panel

A technology of pixel circuit and luminous control signal, which is applied in static indicators, instruments, etc., can solve the problems of difficult and accurate realization, and achieve the effect of stable output environment

Pending Publication Date: 2022-04-12
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technology requires that the process characteristics of the driving TFT of each pixel are exactly the same in the process of transistor manufacturing, and the Vth of the driving transistor Td is exactly the same, so as to ensure the uniformity of the display of each pixel, but this technical requirement is too ideal , it is difficult to accurately realize

Method used

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  • Pixel circuit and control method thereof, array substrate and display panel
  • Pixel circuit and control method thereof, array substrate and display panel
  • Pixel circuit and control method thereof, array substrate and display panel

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Embodiment Construction

[0047] In order to facilitate understanding of the present application, the present application will be further described below with reference to the related drawings. The preferred embodiment of the present application is given. However, the present application can be implemented in many different forms, is not limited to the embodiments described herein. Conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly.

[0048] It should be noted that when a component is considered to be "connected" another element, it can be directly connected to another element and integral with it, or may at the same time. The term "installation", "one end", "one end" and similar expressions as used herein are intended for purposes of illustration.

[0049] All technical and scientific terms used herein are commonly understood by those skilled in the art, unless otherwise defined. The terms used herein in the specification of the pres...

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Abstract

The invention relates to a pixel circuit and a control method thereof, an array substrate and a display panel. Based on the structural improvement of a pixel circuit, when a light-emitting control signal is maintained at a high level, a driving transistor is turned on by jumping from a high level to a low level through a Vgate signal, so that the reset initialization of the driving transistor is completed; furthermore, a Vdata signal jumps from a low level to a high level, and the turn-on voltage of the driving transistor is compensated; and the light-emitting control signal jumps from a high level to a low level, and the Vgate signal jumps from the low level to the high level, so that a light-emitting driving signal is output. On the basis, the starting voltage of the driving transistor is compensated, so that the driving transistor keeps stable Vgs, and the stable output environment of the light-emitting driving signal is determined according to the voltage difference.

Description

Technical field [0001] The present application relates to the technical field of organic illumination display, and in particular, a pixel circuit and a control method thereof, an array substrate, a display panel. Background technique [0002] OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) has the advantages of high brightness, wide viewing angle, fast response speed, low power consumption, and is currently widely used in high performance display. Among them, AMOLED (Active-Matrix Organic Light Emitting Diode, active matrix organic light emitting diode) The display is a higher mobility of LTPS (Low Temperature Poly-Silicon, low temperature polysilicon) technology, but TFT (ThinfilmTransistor-Liquid Crystal Display, thin film transistor There is a problem with threshold voltage drift, therefore, the OLED pixel circuit requires the corresponding compensation structure. At present, the OLED pixel compensation circuit structure is more complicated. It takes up a lar...

Claims

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Application Information

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IPC IPC(8): G09G3/3208
CPCG09G3/3233G09G2300/0819G09G2300/0842G09G2300/0861G09G2310/0251G09G2310/0262G09G2320/045G09G2310/08G09G2320/0223
Inventor 胡梦
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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