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Driving method for pixel driving circuit, display panel and display device

A pixel driving circuit and driving method technology, applied to static indicators, instruments, etc., can solve problems such as voltage drop, transistor variation, and poor display of the display panel

Active Publication Date: 2019-04-23
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, display devices using pixel driving circuits will face many problems, such as transistor variation, voltage drop (IR drop), aging of light-emitting elements, etc. The above problems will affect the generated driving current. The characteristics of the driving transistors in each pixel driving circuit Inconsistencies between pixels will cause poor display on the display panel, such as uneven display, which will degrade the image quality of the display panel

Method used

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  • Driving method for pixel driving circuit, display panel and display device
  • Driving method for pixel driving circuit, display panel and display device
  • Driving method for pixel driving circuit, display panel and display device

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Embodiment Construction

[0022] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0023] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0024] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0025] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses a driving method for a pixel driving circuit, a display panel and a display device. The pixel driving circuit in the driving method for the pixel driving circuit comprises a driving transistor and a light-emitting element. The driving method comprises a data writing stage, a light-emitting stage and a compensation stage, wherein the light-emitting stage and the compensationstage are overlapped, and a starting moment of the compensation stage is located after the start of the light-emitting stage. The display panel comprises a display area and a non-display area; the display area comprises a plurality of pixel units arranged in an array mode, a plurality of light-emitting signal lines, and a plurality of scanning signal lines; each pixel unit comprises the pixel driving circuit; and the pixel driving circuit is driven by the driving method. The display device comprises the display panel. The current influence of current pixels can be brought into a compensationrange in real time, so that a better compensation effect can be achieved, different pixels can be uniformly displayed as much as possible, and the display effect and the display quality can be improved.

Description

technical field [0001] The present invention relates to the field of display technology, and more particularly, to a driving method of a pixel driving circuit, a display panel and a display device. Background technique [0002] With the gradual rise of wearable application devices such as smart glasses and smart watches, the demand for flexible display devices in the display industry is also increasing. Organic Light Emitting Display (OLED) has the advantages of self-illumination without backlight, low driving voltage, high luminous efficiency, fast response, light and thin, and high contrast. It is considered to be the most promising display device for the next generation. . [0003] A pixel in an organic light emitting display device includes a pixel driving circuit for effectively controlling a light emitting element in the pixel, a transistor in the pixel driving circuit can generate a driving current, and the light emitting element emits light in response to the drivin...

Claims

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Application Information

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IPC IPC(8): G09G3/3266G09G3/3233G09G3/3291
CPCG09G3/3233G09G3/3266G09G3/3291G09G2320/0233G09G2300/0814G09G2300/0819G09G2300/0842G09G3/32G09G2300/0426G09G2310/0202
Inventor 张宇恒袁永李杰良黄婉铭翟应腾
Owner XIAMEN TIANMA MICRO ELECTRONICS
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