Pixel circuit and display device

A pixel circuit and leakage current technology, applied in static indicators, instruments, etc., can solve the problems of unstable gate potential of drive transistors, large leakage current, and large power consumption of display devices, so as to improve pixel density and reduce area Effect of small, drive frequency reduction

Inactive Publication Date: 2019-09-20
HEFEI VISIONOX TECH CO LTD
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  • Abstract
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Problems solved by technology

[0003] An organic light-emitting display device includes a plurality of pixel circuits, and the pixel circuit usually includes a plurality of thin film transistors. In the pixel circuit of the prior art, the thin f

Method used

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  • Pixel circuit and display device

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Embodiment Construction

[0053] 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.

[0054] As mentioned in the background art, in the pixel circuit of the prior art, the thin film transistor electrically connected to the driving transistor usually has a large leakage current, which causes the gate potential of the driving transistor to be unstable, and the power consumption of the display device is large. The inventors have found through research that the reason for the above problems is that in the prior art, the transistors electrically connected to the gates of the drive transistors are usually...

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PUM

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Abstract

The embodiment of the invention discloses a pixel circuit and a display device. The pixel circuit comprises a driving module, a storage module, a light emitting module and a leakage current suppression module; the storage module is used for storing the voltage of the control end of the driving module; the driving module is used for driving the light-emitting module to emit light according to the voltage of the control end of the driving module; and the leakage current suppression module is electrically connected with the control end of the driving module and is used for maintaining the potential of the control end of the driving module. The module electrically connected with the control end of the driving module is set as the leakage current suppression module, so that the potential of the control end of the driving module is not easy to discharge, and the potential of the control end of the driving module can be well maintained; moreover, the driving frequency of the pixel circuit can be reduced, and the power consumption of a driving chip in the display device comprising the pixel circuit is reduced. Due to the fact that the electric potential of the control end of the driving module is not prone to being discharged through the leakage current restraining module, the area of the storage module can be reduced, and pixel density can be improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to a pixel circuit and a display device. Background technique [0002] With the development of display technology, organic light-emitting display devices are more and more widely used. [0003] An organic light-emitting display device includes a plurality of pixel circuits, and the pixel circuit usually includes a plurality of thin film transistors. In the pixel circuit of the prior art, the thin film transistor electrically connected to the driving transistor usually has a large leakage current, causing the gate potential of the driving transistor to vary. Stable, the display device consumes a lot of power. Contents of the invention [0004] The invention provides a pixel circuit and a display device to stabilize the potential of a control terminal of a driving module and reduce power consumption of the display device. [0005] In the first aspect, a...

Claims

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Application Information

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IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G3/3233G09G2300/0819G09G2300/0861G09G2300/0842G09G3/3258G09G2320/0214
Inventor 范龙飞王龙彦段培朱晖韩珍珍胡思明张露吴剑龙
Owner HEFEI VISIONOX TECH CO LTD
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