Micro light emitting diode display substrate and preparation method thereof

A technology of micro-light-emitting diodes and display substrates, which is applied in semiconductor/solid-state device manufacturing, electrical components, electric solid-state devices, etc., can solve problems such as complicated bonding process, increased repair costs, and poor bonding, and achieve high-quality manufacturing of devices. High efficiency, saving production cost, good insulation effect

Active Publication Date: 2020-05-08
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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  • Micro light emitting diode display substrate and preparation method thereof
  • Micro light emitting diode display substrate and preparation method thereof
  • Micro light emitting diode display substrate and preparation method thereof

Examples

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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 invention discloses a micro light emitting diode display substrate and a preparation method thereof. According to the preparation method, each Micro LED structure is fixed with a receiving substrate through an organic adhesive, two sides of the Micro LED structure are provided with electrodes, the Micro LED structure is provided with an undercut structure, and the receiving substrate is also provided with an undercut structure, so that a top electrode and a self-aligned wire for connecting electrodes between the Micro LED structures and the receiving substrate can be obtained only by adopting an open mask plate to deposit an electrode material, and the electrodes have good insulativity therebetween; the connection of the corresponding electrodes between all Micro LED structures and thereceiving substrate can be completed at one time, difference in connection between each Micro LED structure and the receiving substrate can be avoided, and the manufacturing yield of the device is 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 Applications(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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