公开(公告)号：US20240153905A1

公开(公告)日：2024-05-09

申请号：US18411680

申请日：2024-01-12

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Hyeon CHAE

IPC: H01L23/00 ,  H01L25/075 ,  H01L33/62

CPC classification number: H01L24/72 ,  H01L25/0753 ,  H01L33/62

Abstract: A display apparatus including a circuit board, at least one LED stack configured to emit light, electrode pads disposed on the at least one LED stack and electrically connected to the at least one LED stack, and electrodes disposed on the electrode pads and electrically connected to the electrode pads, respectively, in which each of the electrodes has a fixed portion that is fixed to one of the electrode pads and an extending portion that is spaced apart from the one of the electrode pads, and the electrodes include at least two metal layers having different thermal expansion coefficients from each other.

公开(公告)号：US20230126735A1

公开(公告)日：2023-04-27

申请号：US18087690

申请日：2022-12-22

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Hyeon CHAE

IPC: H01L23/00 ,  H01L33/62 ,  H01L25/075

Abstract: A display apparatus including a circuit board, at least one LED stack configured to emit light, electrode pads disposed on the at least one LED stack and electrically connected to the at least one LED stack, and electrodes disposed on the electrode pads and electrically connected to the electrode pads, respectively, in which each of the electrodes has a fixed portion that is fixed to one of the electrode pads and an extending portion that is spaced apart from the one of the electrode pads, and the electrodes include at least two metal layers having different thermal expansion coefficients from each other.

公开(公告)号：US20220399399A1

公开(公告)日：2022-12-15

申请号：US17847105

申请日：2022-06-22

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Chung Hoon LEE ,  Jong Hyeon CHAE ,  Seong Gyu JANG ,  Ho Joon LEE

IPC: H01L27/15 ,  G09G3/32 ,  G09G3/20 ,  H01L33/50 ,  H01L33/40 ,  H01L33/30 ,  H01L25/075

Abstract: A display device including a substrate, a light emitting stacked structure disposed on the substrate and including a plurality of epitaxial sub-units disposed one over another, a first adhesive layer bonding the epitaxial sub-units to the substrate; and a line part disposed on the substrate and configured to apply a light emitting signal to each of the epitaxial sub-units, in which the light emitting stacked structure is configured to provide light having various colors by a combination of light emitted from each of the epitaxial sub-units, the first adhesive layer includes a conductive and non-transparent material, and the substrate includes a non-transparent material.

公开(公告)号：US20220392879A1

公开(公告)日：2022-12-08

申请号：US17844653

申请日：2022-06-20

Applicant: Seoul Viosys Co., Ltd.

Inventor： Jong Hyeon CHAE ,  Chang Yeon Kim ,  Ho Joon Lee ,  Seong Gyu Jang ,  Chung Hoon Lee ,  Dae Sung Cho

IPC: H01L25/13 ,  H01L25/075 ,  H01L33/00 ,  H01L27/15 ,  H01L33/40 ,  H01L33/50 ,  H01L33/62

Abstract: A light emitting device including a first LED sub-unit having a thickness in a first direction, a second LED sub-unit disposed on a portion of the first LED sub-unit in the first direction, each of the first and second LED sub-units comprising a first-type semiconductor layer, a second-type semiconductor layer, and an active layer, a reflective electrode disposed adjacent to the first LED sub-unit and electrically connected to the first-type semiconductor layer of the first LED sub-unit, and a first ohmic electrode forming ohmic contact with the second-type semiconductor layer of the first LED sub-unit, in which the active layer of the first LED sub-unit is configured to generate light, includes AlxGa(1-x-y)InyP (0≤x≤1, 0≤y≤1), and overlaps the active layer of the second LED sub-unit in the first direction, and the active layer of the second LED sub-unit includes the same material as the active layer of the first LED sub-unit.

公开(公告)号：US20220037395A1

公开(公告)日：2022-02-03

申请号：US17403793

申请日：2021-08-16

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Chung Hoon LEE ,  Jong Hyeon CHAE

IPC: H01L27/15 ,  H01L25/065 ,  H01L25/18

Abstract: A light-emitting diode (LED) unit for a display including a plurality of pixels each including a first light emitting cell, a second light emitting cell, and a third light emitting cell, each of the first, second, and third light emitting cells including a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, a first wavelength converter configured to convert a wavelength of light emitted from the first light emitting cell, a second wavelength converter configured to convert a wavelength of light emitted from the second light emitting cell, in which the first, second, and third light emitting cells of each pixel share the first conductivity type semiconductor layer.

公开(公告)号：US20210351230A1

公开(公告)日：2021-11-11

申请号：US17366462

申请日：2021-07-02

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Hyeon CHAE ,  Chung Hoon LEE ,  Seong Gyu JANG ,  Chang Yeon KIM ,  Ho Joon LEE

IPC: H01L27/15 ,  H01L25/075 ,  H01L33/10 ,  H01L33/30 ,  H01L33/40 ,  H01L33/50

Abstract: A light emitting diode (LED) stack for a display including a substrate, a first LED stack disposed on the substrate, a second LED stack disposed on the first LED stack, a third LED stack disposed on the second LED stack, a first color filter interposed between the first LED stack and the second LED stack, and a second color filter interposed between the second LED stack and the third LED stack, in which the second LED stack and the third LED stack are configured to transmit light generated from the first LED stack to the outside, and the third LED stack is configured to transmit light generated from the second LED stack to the outside.

公开(公告)号：US20200381386A1

公开(公告)日：2020-12-03

申请号：US16877258

申请日：2020-05-18

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Hyeon CHAE

IPC: H01L23/00 ,  H01L25/075 ,  H01L33/62

Abstract: A light emitting device including at least one LED stack, electrode pads disposed on the LED stack, and cantilever electrodes disposed on the electrode pads, respectively, in which each of the cantilever electrodes has a fixed edge that is fixed to one of the electrode pads and a free standing edge that is spaced apart from the one of the electrode pads.

公开(公告)号：US20200098949A1

公开(公告)日：2020-03-26

申请号：US16660460

申请日：2019-10-22

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Hyeon CHAE ,  Joon Sup LEE ,  Won Young ROH ,  Min Woo KANG ,  Jong Min JANG ,  Hyun A KIM ,  Daewoong SUH

IPC: H01L33/44 ,  H01L23/00 ,  H01L33/24 ,  H01L33/14 ,  H01L33/10 ,  H01L33/62 ,  H01L33/54 ,  H01L33/40 ,  H01L27/15 ,  H01L33/20 ,  H01L33/38 ,  H01L25/075 ,  H01L33/08

Abstract: A light emitting diode apparatus includes a substrate, a first conductive type semiconductor layer, a second conductive type semiconductor layer, a mesa, a lower insulating layer, a first pad and a second pad. The substrate has a first surface and a second surface opposite to the first surface. The first conductivity type semiconductor layer is disposed on the first surface of the substrate. The mesa is disposed on the first conductive semiconductor layer and has an active layer and the second conductive semiconductor layer. A peripheral edge of the first conductive semiconductor layer is exposed. The lower insulating layer covers the mesa and the first conductive semiconductor layer and has a plurality of first openings exposing the first conductive semiconductor layer along a peripheral edge of the substrate.

公开(公告)号：US20200066691A1

公开(公告)日：2020-02-27

申请号：US16673184

申请日：2019-11-04

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Jong Hyeon CHAE ,  Chang Yeon KIM ,  Seong Gyu JANG ,  Ho Joon LEE ,  Jong Min JANG ,  Dae Sung CHO

IPC: H01L25/075 ,  H01L33/50 ,  H01L33/08 ,  H01L33/38

Abstract: A light emitting device for a display includes a pixel region including first, second, and third LED stacks, an adhesive layer disposed between the first and second LED stacks, or between the second and third LED stacks, a metal bonding layer at least partially surrounded by the adhesive layer, and disposed between and is electrically connected to the first and second LED stacks, or the second and third LED stacks, and a common electrode pad connected to the first, second, and third LED stacks, first, second, and third electrode pads connected to the first, second, and third LED stacks, respectively, and the first, second, and third LED stacks are configured to be independently driven using the electrode pads.

公开(公告)号：US20200013928A1

公开(公告)日：2020-01-09

申请号：US16571604

申请日：2019-09-16

Applicant: Seoul Viosys Co., Ltd.

Inventor： Jong Hyeon CHAE ,  Jong Min Jang ,  Won Young Roh ,  Daewoong Suh ,  Dae Sung Cho ,  Joon Sup Lee ,  Kyu Ho Lee ,  Chi Hyun In

IPC: H01L33/40 ,  H01L33/62 ,  H01L33/48 ,  H01L33/46 ,  H01L33/42 ,  H01L33/12 ,  H01L33/44 ,  H01L33/32 ,  H01L33/14 ,  H01L33/00 ,  H01L33/20 ,  H01L33/38 ,  H01L33/22

Abstract: A light emitting diode including a first conductive type semiconductor layer, a mesa disposed on the first conductive type semiconductor layer, the mesa including an active layer and a second conductive type semiconductor layer, a reflective electrode disposed on the mesa and configured to be in ohmic-contact with the second conductive type semiconductor layer, a current spreading layer disposed on the mesa and the reflective electrode, the current spreading layer including a first portion configured to be in ohmic-contact with an upper surface of the first conductive type semiconductor layer, a first n-contact region spaced apart from a second n-contact region with the mesa disposed between the first and second n-contact regions, and an insulation layer including a first opening exposing the reflective electrode between the first and second n-contact regions. The first and second n-contact regions have a second opening that exposes the first conductive type semiconductor layer.