Display panel, driving method thereof and display device

A display panel and drive module technology, applied to static indicators, instruments, etc., can solve problems such as threshold voltage drift of drive transistors

Pending Publication Date: 2020-12-25
XIAMEN TIANMA MICRO ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a display panel, a driving method thereof, and a display device, so as to improve the threshold voltage drift problem of existing driving transistors

Method used

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  • Display panel, driving method thereof and display device
  • Display panel, driving method thereof and display device
  • Display panel, driving method thereof and display device

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Embodiment Construction

[0058] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through implementation with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the embodiment of the present invention. Some, but not all, embodiments. All other embodiments obtained by those skilled in the art based on the basic concepts disclosed and suggested by the embodiments of the present invention belong to the protection scope of the present invention.

[0059] refer to figure 1 , figure 1It is a schematic diagram of a pixel circuit of a display panel provided by an embodiment of the present invention. The display panel provided in this embodiment includes: a pixel circuit 10 and a light emitting element 20; the pixel circuit 10 includes a data writing module 11, a driving module 12 and a compensation...

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Abstract

The embodiment of the invention discloses a display panel, a driving method thereof and a display device. The display panel comprises a pixel circuit and a light-emitting element, wherein the pixel circuit comprises a data writing module, a driving module and a compensation module; the data writing module is used for selectively providing a data signal for the driving module; the driving module isused for providing driving current for the light-emitting element and comprises a driving transistor; and the compensation module is used for compensating the threshold voltage of the driving transistor. The working process of the pixel circuit comprises a bias stage, in the bias stage, the data writing module and the driving module are started, the compensation module is turned off, and data signals are written into the drain electrode of the driving transistor and used for adjusting the bias state of the driving transistor. In the embodiment of the invention, the bias stage is added and used for adjusting the voltage of the gate electrode, the source electrode or the drain electrode of the driving transistor and weakening the threshold voltage drift of the driving transistor caused by the non-bias stage.

Description

technical field [0001] Embodiments of the present invention relate to display technologies, and in particular, to a display panel, a driving method thereof, and a display device. Background technique [0002] In the display panel, the pixel circuit provides the driving current for the light-emitting elements of the display panel required for display, and controls whether the light-emitting elements enter the light-emitting stage, and is an indispensable element in most self-luminous display panels. [0003] However, in the existing display panel, as the usage time increases, the internal characteristics of the driving transistor in the pixel circuit change slowly, causing the threshold voltage of the driving transistor to drift, thereby affecting the comprehensive characteristics of the driving transistor, and further affecting the display uniformity. Contents of the invention [0004] Embodiments of the present invention provide a display panel, a driving method thereof, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/30G09G3/32G09G3/3225
CPCG09G3/30G09G3/32G09G3/3225G09G2320/0233G09G3/3233G09G2300/0819G09G2300/0814G09G2320/045G09G2300/043
Inventor 袁永
Owner XIAMEN TIANMA MICRO ELECTRONICS
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