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Pixel driving circuit and driving method thereof, display panel and display device

A pixel drive circuit and drive module technology, applied in static indicators, instruments, etc., can solve problems such as uneven light spots, product yield reduction, afterimages, etc., and achieve the effect of suppressing threshold voltage drift and improving product yield

Active Publication Date: 2020-12-04
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the disadvantage of oxide thin film transistors is poor stability, and its threshold voltage (Vth) will drift during the driving process, causing defects such as afterimages and uneven light spots (Mura) on the screen display, resulting in a significant increase in product yield. reduce

Method used

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  • Pixel driving circuit and driving method thereof, display panel and display device
  • Pixel driving circuit and driving method thereof, display panel and display device
  • Pixel driving circuit and driving method thereof, display panel and display device

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Embodiment Construction

[0024] Part of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, and unnecessary details and functions for the present disclosure will be omitted during the description to avoid confusing the understanding of the present disclosure. In this specification, the various embodiments described below to describe the principles of the present disclosure are illustrative only and should not be construed in any way to limit the scope of the disclosure. The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of exemplary embodiments of the present disclosure as defined by the claims and their equivalents. The following description includes numerous specific details to aid in understanding, but these should be considered as examples only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embo...

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Abstract

Disclosed are a pixel drive circuit (200) and a driving method therefor, a display panel, and a display device. The pixel drive circuit (200) comprises: a charge control sub-circuit (210), being configured to be capable of transmitting, under the control of a scanning signal from a scanning signal terminal, a data signal from a data signal terminal to a first node (N1); a signal storage sub-circuit (220), being configured to be able to store a signal from the first node (N1) or transmit the stored signal to the first node (N1); a first drive sub-circuit (230), being configured to be able to transmit, under the control of the level of the first node (N1). a first voltage signal from a first voltage signal terminal to an organic light emitting diode (OLED) element; and a second drive sub-circuit (240), being configured to transmit, under the control of the level of the first node (N1), a second voltage signal from the second voltage signal terminal to the organic light emitting diode (OLED) element.

Description

technical field [0001] The present disclosure relates to the field of display technology, and more particularly relates to a pixel driving circuit and a driving method thereof, a display panel and a display device. Background technique [0002] In recent years, with the rapid development of display technology, thin-film transistor (TFT) technology has developed from the original amorphous silicon (a-Si) thin-film transistor to the current low-temperature polysilicon (LTPS) thin-film transistor, metal-induced lateral crystallization (MILC) Thin-film transistors, oxide (Oxide) thin-film transistors, etc., and the light-emitting technology has also developed from the original liquid crystal display (LCD) and plasma display panel (PDP) to the current organic light-emitting diode (OLED) display. [0003] OLED is a new generation of display device, which has many advantages compared with liquid crystal display, such as: self-illumination, fast response speed, wide viewing angle an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225
Inventor 成军闫梁臣王东方
Owner BOE TECH GRP CO LTD
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