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Pixel driving circuit, driving method thereof, display panel and device

A technology of a pixel driving circuit and a driving transistor, which is applied in the fields of display panels and devices, pixel driving circuits and driving methods thereof, can solve the problems affecting the display effect and afterimage, and achieve the effect of improving the display afterimage phenomenon.

Pending Publication Date: 2022-03-22
SHANGHAI AVIC OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, display devices including AM OLED, AM Mini LED, and Micro LED have afterimage problems caused by differences in the threshold drift of the driving tube when they are turned on, which affects the display effect

Method used

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

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Embodiment Construction

[0033] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0036] It should be understood that the term "an...

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Abstract

The invention provides a pixel driving circuit, a driving method thereof, a display panel and a device, relates to the technical field of display, and aims to solve the problem of afterimage caused by drifting difference of threshold values of driving tubes when the display panel comprising an AM OLED, an AM Mini LED or a Micro LED is lightened. In the pixel driving circuit, a control electrode of a driving transistor is electrically connected with a first node, and a first electrode is electrically connected with a second node; the second pole is electrically connected with the third node which is electrically connected with the light-emitting element; the data write-in module writes a signal of a data signal end into a second node in a data write-in stage; the threshold offset difference compensation module provides a signal of a bias signal end to the second node or the third node in a threshold offset difference compensation stage; under the action of a signal of the bias signal end, the driving transistor is biased and conducted; the light-emitting control module is used for writing a signal of a power supply voltage end into the light-emitting element in a light-emitting stage.

Description

【Technical field】 [0001] The present invention relates to the field of display technology, in particular to a pixel driving circuit and a driving method thereof, a display panel and a device. 【Background technique】 [0002] At present, it includes Active-Matrix Organic Light-Emitting Diode (AM OLED for short), Active-Matrix Mini Light Emitting-Diode (AM Mini LED for short), and Micron Light-Emitting Diode (AM OLED for short). Due to the characteristics of fast response, wide color gamut, large viewing angle, and high brightness, light-emitting technologies including Micro LED) have gradually become the mainstream display technology for displays such as mobile phones, TVs, and computers. In addition, AM Mini LED and Micro LED can also be used as backlights in medium and large-sized displays, such as car displays, flat panels and TVs, to achieve regional backlight adjustment of medium and large-sized displays and to improve the contrast of the display and stereoscopic display...

Claims

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Application Information

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IPC IPC(8): G09G3/32G09G3/3225G09G3/3258
CPCG09G3/32G09G3/3225G09G3/3258G09G2310/0264
Inventor 张玥玮马从华
Owner SHANGHAI AVIC OPTOELECTRONICS