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Micro light-emitting diode and transfer device and transfer method thereof

A technology of micro-light-emitting diodes and transfer devices, which is applied in the manufacturing of electrical components, electric solid-state devices, semiconductor/solid-state devices, etc., can solve the problems of complex transfer process and low transfer yield, and achieves simplification of the transfer process, avoidance of interference, and avoidance of damage effect

Pending Publication Date: 2021-12-07
HUBEI YANGTZE IND INNOVAION CENT OF ADVANCED DISPLAY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many current transfer / transfer methods, but there are common problems of complicated transfer process and low transfer yield

Method used

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  • Micro light-emitting diode and transfer device and transfer method thereof
  • Micro light-emitting diode and transfer device and transfer method thereof
  • Micro light-emitting diode and transfer device and transfer method thereof

Examples

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Embodiment Construction

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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 micro light-emitting diode and a transfer device and a transfer method thereof, and relates to the technical field of display. The micro light-emitting diode comprises a light-emitting body, an electrode and a supporting body, and the light-emitting body is located between the supporting body and the electrode in the direction perpendicular to the plane where the supporting body is located; the orthographic projection of the light-emitting body on the plane where the supporting body is located is a first projection, the area of the first projection is smaller than that of the supporting body, the distance between the edge of the first projection and the edge of the supporting body is d, and d is larger than 0. When the micro light-emitting diode is arranged on the transfer substrate, the light-emitting body and the electrode of the micro light-emitting diode are not in contact with the inner wall of the opening of the transfer substrate, so that when the micro light-emitting diode on the transfer substrate is transferred, the interference of the inner wall of the transfer substrate on the light-emitting body and the electrode in the transfer process is effectively avoided; the transfer process of the micro light-emitting diode is simplified, and the transfer yield is improved.

Description

technical field [0001] The invention relates to the field of display technology, and more specifically, to a micro light emitting diode, a transfer device and a transfer method thereof. Background technique [0002] A light emitting diode (Light Emitting Diode, LED) is an optoelectronic semiconductor element that can convert current into a specific wavelength range. Its light emission is far away from the energy difference between electrons moving between n-type semiconductors and p-type semiconductors, and releases energy in the form of light. , so light-emitting diodes are called cold light sources, which have the advantages of low power consumption, small size, high brightness, easy matching with integrated circuits, and high reliability, and are widely used as light sources. Moreover, with the maturity of LED technology, the technology of directly using LEDs as self-luminous display dot pixels of LED displays or micro-light-emitting diode (ie, Micro LED) displays has gra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L21/683H01L21/67H01L25/075
CPCH01L21/6835H01L21/67144H01L25/0753H01L2221/68363
Inventor 王仙翅黄丹赵旭
Owner HUBEI YANGTZE IND INNOVAION CENT OF ADVANCED DISPLAY CO LTD
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