LIGHT-EMITTING DEVICE FOR DISPLAY AND DISPLAY APPARATUS COMPRISING SAME

WIPO Patent Application WO/2021/096272

A1

A light-emitting device for display according to an embodiment comprises: a first LED stack; a second LED stack located under the first LED stack; a third LED stack located under the second LED stack; a first bonding layer interposed between the second LED stack and the third LED stack; a second bonding layer interposed between the first LED stack and the second LED stack; a first planarization layer interposed between the second bonding layer and the second LED stack; a second planarization layer arranged on the first LED stack; first lower buried vias which are electrically connected respectively to a first conductive-type semiconductor layer and a second conductive-type semiconductor layer in the third LED stack after penetrating through the first planarization layer, the second LED stack, and the first bonding layer; and upper buried vias penetrating through the second planarization layer and the first LED stack, wherein widths of upper ends of the first lower buried vias and the upper buried vias are greater than widths of corresponding through-holes.

LEE SEOM GEUN (KR)
JANG SEONG KYU (KR)
RYU YONG WOO (KR)
CHAE JONG HYEON (KR)

PCT/KR2020/015940

May 20, 2021

November 13, 2020

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SEOUL VIOSYS CO LTD (KR)

H01L33/38; H01L25/075; H01L27/12; H01L33/08; H01L33/42

US20190214373A1	2019-07-11
KR20170115142A	2017-10-17
US20190229234A1	2019-07-25
JP2018148074A	2018-09-20
JP2016219453A	2016-12-22

AIP PATENT & LAW FIRM (KR)

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