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A micro light emitting diode display substrate and its preparation method

A technology for micro-light-emitting diodes and display substrates, which is used in semiconductor/solid-state device manufacturing, semiconductor/solid-state device components, semiconductor devices, etc., can solve problems such as increased repair costs, complicated bonding processes, and poor binding, and saves money. Production cost, improved device fabrication yield, and effects of good insulation

Active Publication Date: 2021-07-23
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

AuSn, InSn and other similar low-melting point metals are often used for the bonding and bonding of the electrodes, which involves the solid-liquid-solid transformation of the bonding material, the bonding process is complicated, the reliability is low, and it is easy to cause Poor binding, resulting in increased repair costs

Method used

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  • A micro light emitting diode display substrate and its preparation method
  • A micro light emitting diode display substrate and its preparation method
  • A micro light emitting diode display substrate and its preparation method

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Embodiment Construction

[0014] Embodiments of the present application are described in detail below, examples of which 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. The terms "first", "second", "third", etc. (if any) in the description and claims of this application and the drawings are used to distinguish similar objects and not necessarily to describe a specific order or sequence . It should be understood that the items so described are interchangeable under appropriate circumstances. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion. The directional terms mentioned in this application, such as: up, down, left, right, front, back, inside, outside, side, etc., are only directions referring to the drawings.

[0015] The embodiments described below with reference to the drawings and the dire...

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Abstract

The present application discloses a micro light emitting diode display substrate and a preparation method thereof. In the preparation method, the Micro LED structure and the receiving substrate are fixed with an organic adhesive, and electrodes are arranged on both sides of the Micro LED structure, with an undercut structure on it, and an undercut structure on the receiving substrate, so that only open The electrode material is deposited on the mask to obtain the top electrode and the self-aligned wire connecting the electrode between the Micro LED structure and the receiving substrate. The electrodes have good insulation; all the corresponding electrodes between the Micro LED structure and the receiving substrate can be completed at one time The connection between each Micro LED structure and the receiving substrate can be avoided, and the yield rate of the device can be improved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a micro light emitting diode display substrate and a preparation method thereof. Background technique [0002] A light emitting diode (Light Emitting Diode, referred to as LED) is a semiconductor element that can convert electrical energy into light in a specific wavelength range. The light-emitting principle of light-emitting diodes is that the energy difference between electrons moving between N-type semiconductors and P-type semiconductors is released in the form of light. Light-emitting diodes have the advantages of low power consumption, small size, high brightness, easy matching with integrated circuits, and high reliability. They are often widely used as light sources at present. With the maturity of LED technology, LED displays or micro-light-emitting diode (Micro LED) displays that directly use LEDs as dot pixels are gradually developed. [0003] The Micro L...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L23/492H01L21/48H01L25/16
CPCH01L21/4846H01L21/485H01L21/486H01L23/492H01L25/167
Inventor 卢马才
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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