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Pixel driving circuit, driving method and display device

A pixel drive circuit, drive circuit technology, applied to static indicators, instruments, etc., can solve problems such as LED chip signal crosstalk

Pending Publication Date: 2021-08-13
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a pixel driving circuit, a driving method and a display device, which are used to solve the problem of signal crosstalk between LED chips in the prior art

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  • Pixel driving circuit, driving method and display device
  • Pixel driving circuit, driving method and display device
  • Pixel driving circuit, driving method and display device

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Embodiment Construction

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some of the embodiments of the present disclosure, not all of them. And in the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. Based on the described embodiments of the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative effort fall within the protection scope of the present disclosure.

[0044]Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those skilled in the art to which the ...

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Abstract

The invention discloses a pixel driving circuit, a driving method and a display device. The pixel driving circuit comprises a plurality of light-emitting devices, a driving transistor, a control circuit and a write-in compensation circuit. The write-in compensation circuit responds to a scanning signal, a data signal can be provided for the driving transistor, and the threshold voltage of the driving transistor is compensated, so that the driving transistor after the threshold voltage compensation is driven to generate a driving current according to a digital signal, the control circuit responds to a control signal, the driving current is provided for a to-emit-light device, an initialization signal is provided for other light-emitting devices except the to-emit-light device in the plurality of light-emitting devices and a grid electrode of the driving transistor, and the grid electrode of the driving transistor and other light-emitting devices are initialized while the to-emit-light device is driven to emit light; therefore, the plurality of light-emitting devices can be controlled to emit light alternately under the control of the driving current.

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 device. Background technique [0002] Micro light-emitting diode display devices, such as Micro-LED display devices, have the advantages of low driving voltage, long life, and wide temperature resistance. Therefore, micro light-emitting diode display devices have received more and more attention. [0003] The Micro-LED display devices in the prior art all use red Micro-LEDs, green Micro-LEDs and blue Micro-LEDs as a pixel unit, and each Micro-LED is driven by a driving circuit. By controlling the driving current and The light-emitting duration of the light-emitting device is used to control the display gray scale of the light-emitting device. [0004] However, in the prior art, there may be signal crosstalk between the three LED chips in a display unit, so a new driving structure is needed to solve this problem. Contents...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G3/32
Inventor 袁丽君张粲李伟王灿丛宁牛晋飞张晶晶玄明花
Owner BOE TECH GRP CO LTD