Pixel circuit and display device

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...

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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 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

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