A pixel driving circuit, driving method and display substrate

Abstract

The pixel driving circuit, the driving method and the display substrate solve the problem of uneven display on the screen body when the driving frequency of the pixel driving circuit is increased. The pixel driving circuit includes: a first initialization module coupled to the second pole of the light-emitting device, and used for conducting in response to the first switch control signal, so as to transmit the second light-emitting control signal to the second pole of the light-emitting device; the second initialization The module is coupled to the control pole of the drive transistor, and is used to conduct in response to the first switch control signal, so as to transmit the initialization signal to the control pole of the drive transistor; the sampling module is respectively coupled to the second initialization module and the control pole of the drive transistor , for conducting in response to the second switch control signal, so as to write the data signal into the control electrode of the driving transistor; the light emitting module is respectively coupled with the three electrodes of the driving transistor, the second electrode of the light emitting device and the second power supply signal, It is used for turning on in response to the first light-emitting control signal, so as to control the light-emitting device to emit light.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a pixel driving circuit, a driving method and a display substrate of a display screen. Background technique [0002] With the development of augmented reality and virtual reality technologies, higher requirements are placed on the refresh rate of the display screen. Taking mobile phones as an example, the refresh rate of mobile phones is usually 60Hz, and the refresh rate of mobile phones dedicated to games can reach 90Hz. As the refresh frequency of the display screen increases, higher requirements are placed on the driving frequency of the pixel driving circuit. However, as the driving frequency of the pixel driving circuit increases, uneven display on the screen results. Contents of the invention [0003] In view of this, the embodiments of the present invention are dedicated to providing a pixel driving circuit, a driving method and a display substrate, so as to solve the...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the embodiments of the present invention are dedicated to providing a pixel driving circuit, a driving method, and a display substrate, so as to solve the problem of uneven display on the screen when the driving frequency of the pixel driving circuit is increased in the prior art.

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