Display panel, display device and pixel driving method

A display panel and pixel drive circuit technology, applied to static indicators, instruments, semiconductor devices, etc., can solve the problems of different luminous brightness, achieve uniform brightness, alleviate uneven display, and improve the effect of different luminous brightness

Active Publication Date: 2020-11-10
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the display panel, the fingerprint recognition unit is set by reducing the opening area of ​​the pixel unit, which will cause the luminance of each pixel unit in the display panel to be different.

Method used

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  • Display panel, display device and pixel driving method
  • Display panel, display device and pixel driving method
  • Display panel, display device and pixel driving method

Examples

Experimental program
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Embodiment Construction

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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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PUM

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Abstract

The present invention discloses a display panel, a display device and a pixel driving method, including: a display area and a non-display area; a base substrate; a sub-pixel unit; a vertical projection of a fingerprint identification unit on the base substrate Located in the display area; the non-display area includes a binding area; the display area also includes a first pixel area and a second pixel area, and the second pixel area is located between the first pixel area and the binding area; the first pixel area in the first pixel area The pixel opening area of ​​the sub-pixel unit is larger than the pixel opening area of ​​the second sub-pixel unit in the second pixel region; the sub-pixel unit includes a pixel driving circuit and an organic light-emitting device; the first power supply voltage terminal in the pixel driving circuit in the first sub-pixel unit The resistance to the anode is smaller than the resistance between the first power supply voltage terminal and the anode in the pixel driving circuit in the second sub-pixel. By adjusting the resistance between the first power supply voltage terminal and the anode in each sub-pixel unit in the display panel, the brightness of the display panel is more uniform.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a display panel, a display device and a pixel driving method. Background technique [0002] Fingerprints are inherent to each person and are unique. With the development of technology, a variety of display devices with fingerprint recognition functions appear on the market, such as mobile phones, tablet computers, and smart wearable devices. In this way, before operating the display device with the fingerprint recognition function, the user only needs to touch the fingerprint recognition unit of the display device with a finger to perform authority verification, which simplifies the authority verification process. [0003] In order to increase the screen-to-body ratio of the display panel, there are more and more structures in which the fingerprint identification unit is disposed in the display area of ​​the display panel. From the perspective of reducing prod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32G09G3/3233
CPCG09G3/3233H10K59/40H10K59/1216H10K59/122
Inventor 张春鹏
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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