Pixel drive circuit, display panel, display device and pixel driving method

A technology of pixel drive circuit and drive module, which is applied in the fields of pixel drive, display panel, and pixel drive circuit, and can solve problems such as bad display and drifting display, and achieve the effect of improving stability and display effect
CN106652913AActive Publication Date: 2017-05-10WUHAN TIANMA MICRO ELECTRONICS CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN TIANMA MICRO ELECTRONICS CO LTD
Publication Date
2017-05-10

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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.
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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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