Pixel circuit and display device

Abstract

The embodiment of the invention discloses a pixel circuit and a display device. The pixel circuit comprises a data voltage write-in module, a driving module, a storage module, a light emitting module and a leakage current suppression module. The data voltage write-in module is used for writing data voltage into the control end of the driving module. The storage module is used for storing data 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 data voltage of the control end of the driving module. 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 potential of the control end of the driving module is not easy to release in the light emitting stage, so that the potential of the control end of the driving module can be well maintained, and the display effect is improved. Moreover, the driving frequency of the pixel circuit can be reduced, and the power consumption of the whole display device comprising the pixel circuit is reduced. And the area of the storage module can be reduced, so that the 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 prior art, the thin film transistors in the pixel circuit are usually formed by a low temperature polysilicon (Low Temperature Poly-silicon, LTPS) process, and the LTPS process is used The leakage current of the formed thin film transistor is large, and the gate potential of the driving transistor is unstable, resulting in large power consumption of the display device. Contents of the invention [0004] The invention provides a pixel circuit and a display device to stabilize the potential of a contro...

AI Technical Summary

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 prior art, the thin film transistors in the pixel circuit are usually formed by a low temperature polysilicon (Low Temperature Poly-silicon, LTPS) process, and the LTPS process is used The leakage current of the formed thin film transistor is large, and the gate potential of the driving transistor is unstable, resulting in large power consumption of the display device

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