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

A technology of pixel driving circuit and driving module, which is applied in the field of pixel driving circuit and pixel driving, and can solve the problems of aging, luminescence, unevenness, etc., and achieve the effect of internal compensation and external compensation

Active Publication Date: 2020-06-09
HEFEI BOE ZHUOYIN TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the existing methods, the present application proposes a pixel driving circuit, a display panel, a display device, and a pixel driving method to solve the technical problem of uneven light emission caused by the aging phenomenon of the light-emitting device OLED existing in the prior art

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

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Embodiment Construction

[0051] The present application is described in detail below, and examples of embodiments of the present application are shown in the drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Also, detailed descriptions of known technologies will be omitted if they are not necessary to illustrate the features of the present application. The embodiments described below by referring to the figures are exemplary only for explaining the present application, and are not construed as limiting the present application.

[0052] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which this application belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be ...

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Abstract

The embodiment of the invention provides a pixel driving circuit, a display panel, a display device and a pixel driving method. The pixel driving circuit comprises a first switch module, a charge storage module, a driving module, and a second switch module. A first terminal, a second terminal and a control terminal of the first switch module are electrically connected with a data signal line, a first node and a first grid signal line. A first terminal and a second terminal of the charge storage module are electrically connected with the first node and the second node respectively. A first terminal, a second terminal and a control terminal of the driving module are electrically connected with a first level terminal, a second node and a first node respectively. A first terminal, the second terminal, a third terminal and a control terminal of the second switch module are electrically connected with an initialization signal line, a third node, a second node and a second grid signal line respectively, and the third node serves as the third terminal of the charge storage module. According to the embodiment of the invention, the compensation of the light-emitting device OLED is realized,and a problem of non-uniform light emission caused by the aging effect of the light-emitting device OLED is reduced or eliminated.

Description

technical field [0001] The present application relates to the field of display technology, and in particular, the present application relates to a pixel driving circuit, a display panel, a display device, and a pixel driving method. Background technique [0002] In the design of AMOLED (Active-matrix organic light emitting diode, active-matrix organic light-emitting diode) large-size display, the uneven brightness of the product not only depends on the driving TFT (Thin Film Transistor, Thin Film Field-Effect Transistor), but also the light-emitting device OLED (Organic Light-Emitting Diode (organic light-emitting diode) also affects the final display effect. [0003] At present, the driving TFT is generally compensated by an electrical compensation method, through which the influence of the threshold voltage Vth and the mobility of the driving TFT on the display effect can be effectively reduced. However, the light-emitting device OLED will have aging phenomenon after long...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2320/0233G09G2320/046
Inventor 袁志东李永谦袁粲李蒙
Owner HEFEI BOE ZHUOYIN TECH CO LTD
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