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Display panel, driving method 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: 2020-12-29
XIAMEN TIANMA MICRO ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a display panel, a driving method and a display device, so as to improve the threshold voltage drift problem of the existing driving transistor

Method used

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

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Embodiment Construction

[0049] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0050] figure 1 It is a connection diagram of a pixel circuit module of a display panel provided by an embodiment of the present invention, figure 2 It is a schematic structural diagram of a pixel circuit of a display panel provided by an embodiment of the present invention, refer to figure 1 and figure 2 , the display panel 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, a compensation module 13, and a first light emissi...

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Abstract

The embodiment of the invention discloses a display panel, a driving method and a display device. The display panel comprises a pixel circuit and a light-emitting element; the pixel circuit comprisesa data writing module, a driving module, a compensation module and a first light-emitting control module; the driving module is used for providing driving current for the light-emitting element and comprises a driving transistor, and the driving transistor is an NMOS transistor; the data writing module is used for selectively providing a data signal for the driving module; the compensation moduleis used for compensating the threshold voltage of the driving transistor; the first light-emitting control module is used for selectively providing a first power supply signal for the driving module;the working process of the pixel circuit comprises a bias stage, in the bias stage, the driving transistor receives a bias signal, and the bias signal is used for adjusting the bias state of the driving transistor. According to the embodiment of the invention, the threshold voltage drift of the driving transistor can be weakened, the stability of the threshold voltage of the driving transistor isimproved, and the display uniformity of the display panel is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to a display panel, a driving method, and a display device. Background technique [0002] In the display panel, the pixel circuit provides the driving current required for display to the light-emitting elements of the display panel, and controls whether the light-emitting element enters the light-emitting stage, thus becoming 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] The invention provides a display panel, a driving method and a display device, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/3208G09G3/3225G09G3/3233
CPCG09G3/32G09G3/3208G09G3/3225G09G3/3233G09G2230/00G09G2320/0233G09G2300/0819G09G2300/0842G09G2300/0861G09G2320/0238G09G2300/0417G09G2320/043G09G3/2092G09G2310/0278
Inventor 李杰良柳家娴
Owner XIAMEN TIANMA MICRO ELECTRONICS
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