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A pixel circuit, display panel and display device

A pixel circuit and voltage technology, which is applied in the field of display panels, display devices, and pixel circuits, can solve the problems of uneven display of display panels, stealing light of light-emitting elements, etc., so as to avoid uneven display and improve the effect of stealing brightness.

Active Publication Date: 2021-03-02
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a pixel circuit, a display panel and a display device to solve the problem in the prior art that the light-emitting element steals light, resulting in uneven display of the display panel.

Method used

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  • A pixel circuit, display panel and display device
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  • A pixel circuit, display panel and display device

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Embodiment Construction

[0032] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0035] It should be understood that the term "an...

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Abstract

The invention provides a pixel circuit, a display panel and a display device. The pixel circuit comprises a data writing module, a threshold compensation module, a light-emitting control module, a first reset module, a driving transistor, a voltage neutralization module and a light-emitting element, wherein the first reset module is electrically connected with the first node, and the gate of the driving transistor is electrically connected with the first node; the first pole of the driving transistor is electrically connected with the second node, and the second pole is electrically connectedwith the third node; the data writing module is electrically connected with the second node; the threshold compensation module is electrically connected with the first node, the third node and the first voltage signal end; the light-emitting control module is used for providing a first voltage signal to a second node and providing a signal of a third node to a fourth node under the control of a light-emitting control signal; the light-emitting element is electrically connected with the fourth node; and the voltage neutralizing module is used for reducing the voltage neutralized after the thirdnode and the fourth node are connected under the control of the light-emitting control signal. The pixel circuit can solve the problem that the light-emitting element is turned on stealthily.

Description

【Technical field】 [0001] The present invention relates to the field of display technology, in particular to a pixel circuit, a display panel and a display device. 【Background technique】 [0002] Existing display technologies include organic light-emitting display technologies, in which organic light-emitting diodes (Organic Light-Emitting Diode, OLED) are used as light-emitting elements. Organic light-emitting diodes have the advantages of self-illumination, high contrast, ultra-wide viewing angle, low power consumption, etc., and can realize the production of flexible displays, so they have become the focus of current research. [0003] An organic light emitting display panel includes a pixel array and a pixel circuit that provides driving current to each organic light emitting diode in the pixel array. Circuit stability is very important in the pixel circuit. When using the existing pixel circuit structure to drive the display panel to display light, there may be a proble...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2320/0214G09G2320/0233
Inventor 李奎芦兴张鼎向东旭彭涛
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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