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Display substrate, display panel and preparation method thereof

A display substrate and display panel technology, which is applied to electrical components, electrical solid devices, circuits, etc., can solve the problems that the color conversion layer is vulnerable to water vapor invasion and affects the life of MicroLED displays, so as to save the preparation process time, ensure the life, and improve The effect of preparation efficiency

Pending Publication Date: 2021-11-19
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that the above-mentioned color conversion layer is susceptible to water vapor intrusion and the service life of the Micro LED display is affected by heat, and provides a display substrate, a display panel and a preparation method thereof

Method used

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  • Display substrate, display panel and preparation method thereof
  • Display substrate, display panel and preparation method thereof
  • Display substrate, display panel and preparation method thereof

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Embodiment Construction

[0043] In order for those skilled in the art to better understand the technical solution of the present invention, a display substrate, a display panel and a manufacturing method thereof of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Aiming at the current problem that the color conversion layer is susceptible to water vapor intrusion and the life of the Micro LED display is affected by heat, an embodiment of the present invention provides a display substrate, such as figure 1 As shown, it includes a substrate 1 and a plurality of light emitting units 2 arranged above the substrate 1; the light emitting unit 2 includes an epitaxial layer 21, a buffer layer 22, a first electrode 23 and a color conversion layer 24, and the epitaxial layer 21 and the buffer layer 22 are separated from each other in turn. The substrates 1 are stacked; an opening 220 is opened in the buffer layer 22, an...

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Abstract

The invention provides a display substrate, a display panel and a preparation method thereof. The display substrate comprises a base and a plurality of light emitting units arranged above the base. The light emitting unit comprises an epitaxial layer, a buffer layer, a first electrode and a color conversion layer, and the epitaxial layer and the buffer layer are sequentially stacked away from the base; an opening is formed in the buffer layer, and the first electrode and the color conversion layer are located in the opening; the first electrode is in contact with the epitaxial layer exposed at the opening; the color conversion layer is located on one side of the first electrode away from the epitaxial layer. The color conversion layer is located in the opening of the buffer layer, the buffer layer can well protect the color conversion layer from being damaged by water vapor invasion and from being damaged by heat emitted by the light emitting unit, and therefore the service life of the color conversion layer can be guaranteed, and the service life of the display substrate is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of touch display, and in particular relates to a display substrate, a display panel and a preparation method thereof. Background technique [0002] Micro LED display (Micro light-emitting diode, micro-light-emitting diode, refers to the display technology that uses self-luminous micron-scale LEDs as light-emitting pixel units and assembles them on the drive panel to form a high-density LED array) to emit light for inorganic light-emitting materials , has the advantages of high luminous efficiency, long life, and high reliability, and has been widely concerned. In order to make a full-color Micro LED display, it is necessary to pick up the red, green and blue Micro LEDs from their respective growth substrates and transfer them to the corresponding display substrates. However, since red Micro LEDs are difficult to grow and have low brightness, a color conversion layer is generally used to convert the light em...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/15H01L33/12H01L33/48H01L33/50H01L33/00
CPCH01L27/156H01L33/12H01L33/48H01L33/50H01L33/007H01L2933/0033H01L2933/0041
Inventor 张有为
Owner BOE TECH GRP CO LTD