A pixel driving circuit, display panel, display device and pixel driving method

A technology of a pixel driving circuit and a driving module, which is applied in the field of pixel driving circuit, display panel and pixel driving, can solve problems such as defective and drifting display, and achieve the effect of improving stability and improving display effect.

Active Publication Date: 2018-11-13
WUHAN TIANMA MICRO ELECTRONICS CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a pixel driving circuit, a display panel, a display device and a pixel driving method to solve the problem of poor display caused by threshold voltage drift of the pixel driving circuit, improve the stability of the pixel driving circuit, and improve the display effect

Method used

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

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Embodiment Construction

[0032] 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.

[0033] figure 1 It is a structural diagram of a pixel driving circuit provided by an embodiment of the present invention. see figure 1 , the pixel drive circuit includes a data writing control module 11, a first charging control module 12, a second charging control module 13, a first compensation control module 14, a second compensation control module 15, a first light emission control module 16, a second Light emission control module 17, storage module 18, drive module 19 and organic light emitting element 20; ...

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Abstract

The embodiment of the invention discloses a pixel drive circuit, a display panel, a display device and a pixel driving method. The pixel drive circuit comprises a data writing control module, a first charging control module, a second charging control module, a first compensation control module, a second compensation control module, a first luminescence control module, a second luminescence control module, a storage module, a driving module and an organic luminescence element. The storage module is configured to capture the threshold voltage of the driving module and compensate the threshold voltage of the driving module to allow the current flowing through the organic luminescence element at the luminescence phase to have nothing to do with the threshold voltage of the driving module. According to the technical scheme of the embodiment provided by the invention, the problem can be solved that the display is bad caused by the shift of the threshold voltage of the pixel drive circuit and the display effect is improved.

Description

technical field [0001] The embodiments of the present invention relate to the field of display technology, and in particular, to a pixel driving circuit, a display panel, a display device, and a pixel driving method. Background technique [0002] Organic light-emitting display devices have the advantages of self-luminescence, low driving voltage, high luminous efficiency, fast response speed, thinness, and high contrast, and are considered to be the most promising display devices for the next generation. [0003] A pixel in an organic light emitting display device includes a pixel driving circuit. Transistors in the pixel driving circuit can generate a driving current, and the light emitting element emits light in response to the driving current. However, due to process, aging and other reasons, the threshold value of the transistor will drift, which will affect the generated driving current. The characteristics of the driving transistor in each pixel driving circuit are in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3233
CPCG09G3/3258G09G3/3266
Inventor 张成凤
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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