Digital driving pixel circuit, driving method thereof and display device

Abstract

The embodiment of the invention discloses a digital driving pixel circuit, a driving method thereof and a display device. The digital driving pixel circuit comprises a data writing control module, a driving module, a light emitting module and n latch modules, the control end of the data writing control module is electrically connected with the scanning signal input end of the digital driving pixelcircuit; wherein the first input end is electrically connected with the refreshing control signal input end of the digital driving pixel circuit, the second input end is electrically connected with the data voltage signal input end of the digital driving pixel circuit, and the output end of the data writing module is electrically connected with the control end of the driving module; the data write-in control module is used for sequentially writing the mth data voltage into the mth latch module when the control end of the data write-in control module receives the scanning signal and the firstinput end receives the refreshing signal, and m is greater than or equal to 1 and less than or equal to n; the working frequency of the data driving circuit in the display device can be reduced, the power consumption of the data driving circuit is reduced, and finally the power consumption of the whole display device is reduced.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to a digitally driven pixel circuit, a driving method thereof, and a display device. Background technique [0002] The driving methods of the display panel include analog driving and digital driving. [0003] Among them, the digital drive controls the display brightness by controlling the length of the light-emitting time, which can realize accurate gray scale adjustment, and the device characteristics have little influence on the display effect. Since the digital drive mostly uses sub-field scanning to realize grayscale display, the scanning frequency of the digital drive circuit is much higher than that of the analog drive, resulting in higher power consumption of the digital drive display device. Contents of the invention [0004] The invention provides a digitally driven pixel circuit, its driving method and a display device, so as to reduce the dr...

AI Technical Summary

Problems solved by technology

Since the digital drive mostly uses sub-field scanning to achieve grayscale display, the scanning frequency of the digital drive circuit is much higher than that of the analog drive, resulting in higher power consumption of the digital drive display device.

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