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Micro light-emitting diode, display substrate, manufacturing method of display substrate and display device

A technology of micro-light-emitting diodes and display substrates, which is applied in the direction of electrical components, electric solid-state devices, circuits, etc., and can solve problems such as alignment deviation, low yield rate of crystal-bonding process, and micro-light-emitting diodes falling off, etc., to increase the contact area , Improve transfer yield, good effect of current expansion

Pending Publication Date: 2022-03-25
XIAMEN TIANMA MICRO ELECTRONICS
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  • Claims
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Problems solved by technology

[0005] In view of this, the present invention provides a micro light emitting diode, a display substrate and a manufacturing method thereof, and a display device, so as to solve the problem that the micro light emitting diode and the display substrate are prone to alignment deviation during the transfer process in the prior art, which causes the micro light emitting diode Falling off, making the die-bonding process yield lower

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  • Micro light-emitting diode, display substrate, manufacturing method of display substrate and display device
  • Micro light-emitting diode, display substrate, manufacturing method of display substrate and display device
  • Micro light-emitting diode, display substrate, manufacturing method of display substrate and display device

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Embodiment Construction

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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, a display substrate, a manufacturing method of the display substrate and a display device, and belongs to the technical field of display. The micro light-emitting diode at least comprises a first electrode, a second electrode, a first semiconductor part, a light-emitting part and a second semiconductor part, the light-emitting part is located between the first semiconductor part and the second semiconductor part, the first electrode is located on the side, away from the light-emitting part, of the first semiconductor part, and the second electrode is located on the side, away from the light-emitting part, of the second semiconductor part. The orthographic projection of the first electrode on the first semiconductor part at least covers 50% of the area of the first semiconductor part. The display substrate comprises a plurality of micro light-emitting diodes. The manufacturing method of the display substrate is used for manufacturing the display substrate. The display device comprises the display substrate. According to the micro light-emitting diode provided by the invention, the alignment difficulty during transfer can be reduced, and the yield of a die bonding process is improved, so that the light-emitting efficiency is improved.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a micro light emitting diode, a display substrate and a manufacturing method thereof, and a display device. Background technique [0002] A Micro-Light Emitting Diode (Micro-LED) refers to an LED device in which the distance between pixels is on the order of microns. As a new generation of display technology, Micro-LED display devices have the advantages of small size, wide color gamut, high brightness, and long life. It has a wide range and can well meet various needs. It is the mainstream development direction of micro-display technology in the future. [0003] During the preparation process of the Micro-LED display panel, it is necessary to use mass transfer technology to transfer the Micro-LED chip to the corresponding position on the display substrate where the driving circuit is located, so that the Micro-LED chip can normally drive the display. However,...

Claims

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Application Information

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IPC IPC(8): H01L33/38H01L33/48H01L33/62H01L25/16
CPCH01L33/38H01L33/62H01L25/167H01L33/48H01L2933/0033H01L2933/0016H01L2933/0066
Inventor 林艳刘颖许素霞卞华锋
Owner XIAMEN TIANMA MICRO ELECTRONICS
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