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Pixel driving circuit, display panel and display device

A pixel driving circuit and technology for driving transistors, applied in the field of display panels, display devices, and pixel driving circuits, can solve the problems of poor display uniformity and different luminous brightness of display panels, and improve display uniformity, reduce wiring difficulty, and refresh frequency high effect

Inactive Publication Date: 2020-12-18
YUNGU GUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the refresh rate of the display panel is relatively high or the pixel density (Pixels Per Inch, PPI) is relatively high, the charging rates of the pixel driving circuits at the far end and near end of the display panel are different, resulting in different luminances at different positions of the display panel. The display uniformity of the panel is relatively poor

Method used

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  • Pixel driving circuit, display panel and display device
  • Pixel driving circuit, display panel and display device
  • Pixel driving circuit, display panel and display device

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Embodiment Construction

[0035] 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.

[0036] figure 1 It is a structural schematic diagram of an existing display panel. Such as figure 1 As shown, the display panel includes a signal line 101 and a driver chip 102, the driver chip 102 is arranged at the first end 103 of the display panel, and the signal line 101 extends from the first end 103 of the display panel to a second end corresponding to the first end 103 At the two terminals 104 , the driving chip 101 provides data signals to the pixel driving circuit in the display panel through the signa...

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Abstract

The invention discloses a pixel driving circuit, a display panel and a display device. The pixel driving circuit comprises a driving transistor, a storage module, a data writing module, a first initialization module, a second initialization module and a light emitting device, the first initialization module is used for initializing a grid electrode of the driving transistor; the control end and the first end of the second initialization module are connected with the scanning signal input end of the pixel driving circuit, and the second initialization module is used for initializing the light-emitting device; the data writing module is used for writing data voltage into the grid electrode of the driving transistor; the storage module is used for storing gate voltage of the driving transistor; the driving transistor is used for outputting driving current according to the data voltage to drive the light-emitting device to emit light. The display uniformity of the display panel provided with the pixel driving circuit can be improved, meanwhile, the wiring difficulty of the display panel is reduced, and the display panel can achieve high refresh frequency or high PPI easily.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to a pixel driving circuit, a display panel and a display device. Background technique [0002] During the display process of the display panel, the pixel driving circuit drives the light emitting diode to emit light for display. When the refresh rate of the display panel is relatively high or the pixel density (Pixels Per Inch, PPI) is relatively high, the charging rates of the pixel driving circuits at the far end and near end of the display panel are different, resulting in different luminances at different positions of the display panel. The display uniformity of the panel is relatively poor. Contents of the invention [0003] The invention provides a pixel driving circuit, a display panel and a display device, so as to reduce the charging time of the pixel driving circuit and improve the display uniformity of the display panel. [0004] In the fi...

Claims

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Application Information

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IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2320/0233G09G3/3233G09G2300/0819G09G2300/0861G09G2320/043G09G2310/0251G09G3/32G09G2300/0842
Inventor 解红军
Owner YUNGU GUAN TECH CO LTD
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