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Pixel circuit, gate drive circuit and display panel

A pixel circuit and gate technology, applied in the display field, can solve problems affecting user experience, decrease in display brightness of light-emitting devices, flickering of display panels, etc., to achieve the effects of improving user experience, improving driving performance, and simplifying the structure

Pending Publication Date: 2021-09-07
HEFEI VISIONOX TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are defects in the existing pixel circuits, especially in the case of low refresh rate, the leakage problem of the pixel circuit makes the display brightness of the light-emitting device decrease significantly, which causes the flickering problem of the display panel and affects the user experience

Method used

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  • Pixel circuit, gate drive circuit and display panel
  • Pixel circuit, gate drive circuit and display panel
  • Pixel circuit, gate drive circuit and display panel

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Embodiment Construction

[0091] 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.

[0092] As mentioned in the background art, the existing pixel circuit has a leakage problem, especially at a low refresh rate, the leakage problem significantly reduces the display brightness of the light-emitting device, thereby causing the flickering problem of the display panel, which affects the user experience. The inventor found that the reason for this problem is as follows:

[0093] figure 1 It is a structural schematic diagram of an existing pixel circuit. see figure 1 , the first transistor T1 and the...

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Abstract

The embodiment of the invention discloses a pixel circuit, a gate drive circuit and a display panel. The pixel circuit comprises a leakage current suppression module, and the leakage current suppression module is used for responding to a second light-emitting control signal, disconnecting a current path between the control end of the driving module and the grid initialization module, and disconnecting a current path between the control end of the driving module and the data writing module. The channel type of the transistor in the leakage current suppression module is the same as that of the transistor in the light-emitting control module, and the level of the first light-emitting control signal is opposite to that of the second light-emitting control signal. Compared with the prior art, the pixel circuit has the advantages that the problem of electric leakage of the pixel circuit is solved, the driving performance of the pixel circuit is improved, and the user experience is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular to a pixel circuit, a gate driving circuit and a display panel. Background technique [0002] With the continuous development of display technology, the application range of display panels is becoming wider and wider, and people have higher and higher requirements for the image quality of display panels. A self-illuminating display panel such as an active matrix organic light-emitting diode display panel is driven by a current to emit light, and its driving circuit is a pixel circuit. The gate-source voltage difference of the driving transistor in the pixel circuit determines the magnitude of the current flowing through the driving transistor, and the current flowing through the driving transistor is the magnitude of flowing through the light emitting device. However, existing pixel circuits have defects. Especially in the case of low refresh rate, the le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3233G09G3/3266
CPCG09G3/3233G09G3/3266
Inventor 盖翠丽李俊峰王玲
Owner HEFEI VISIONOX TECH CO LTD
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