Title:
MASS TRANSFER METHOD FOR MICRO LIGHT-EMITTING DIODES, DISPLAY DEVICE, AND FABRICATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/257815
Kind Code:
A1
Abstract:
The present invention provides a mass transfer method for micro light-emitting diodes, a display device, and a fabrication method therefor, the method comprising: covering a side surface of each LED core particle that faces away from a growth substrate with an adhesive layer, and forming an induction layer on a surface of a transfer substrate; during transfer, adhering the adhesive layer and the induction layer by means of bonding, the induction layer being located above the adhesive layer; and therefore, selectively destroying the induction layer and the adhesive layer by means of a mask and by combining a corresponding induction source, so that when corresponding LED core particles naturally fall to a target substrate, excess energy generated by destroying the induction layer may be absorbed by the adhesive layer, and then the LED core particles are effectively protected from being damaged by the induction source, such as light, heat and electromagnetic waves.
Inventors:
TAN JIANGQIAO (CN)
LIU JIANMING (CN)
KE ZHIJIE (CN)
WU SHUANG (CN)
ZHOU CHUAN (CN)
LIU JIANMING (CN)
KE ZHIJIE (CN)
WU SHUANG (CN)
ZHOU CHUAN (CN)
Application Number:
PCT/CN2022/096244
Publication Date:
December 15, 2022
Filing Date:
May 31, 2022
Export Citation:
Assignee:
XIAMEN CHANGELIGHT SEMICONDUCTOR SCI TECH CO LTD (CN)
International Classes:
H01L21/683; G09F9/33; H01L21/78; H01L27/15
Foreign References:
| CN113345829A | 2021-09-03 | |||
| CN112802789A | 2021-05-14 | |||
| CN111477650A | 2020-07-31 | |||
| CN111725214A | 2020-09-29 | |||
| CN111725124A | 2020-09-29 | |||
| US5304460A | 1994-04-19 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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