公开(公告)号：US12288773B2

公开(公告)日：2025-04-29

申请号：US17720403

申请日：2022-04-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jihye Yeon

IPC: H01L25/075 ,  H01L27/15 ,  H01L33/38 ,  H01L33/40 ,  H01L33/50 ,  H01L33/62

Abstract: A display apparatus includes a circuit substrate with driving circuits and first bonding electrodes, and a pixel array having LED cells, each of the LED cells including first and second conductivity-type semiconductor layers with an active layer therebetween, second bonding electrodes on the first bonding electrodes, wavelength converters on the LED cells, an upper semiconductor layer on the LED cells and having a partition structure surrounding side snakes of the wavelength converters and separating the wavelength converters, a first reflective electrode on the side surfaces of the LED cells, spaced from the LED cells by a passivation layer, and extending between the LED cells, second reflective electrodes on the lower surfaces of the LED cells and connected to the second conductivity-type semiconductor layers, a common electrode on at least one side of the LED cells, and a pad electrode outside the LED cells and electrically connected to the driving circuits.

公开(公告)号：US20240021589A1

公开(公告)日：2024-01-18

申请号：US18221699

申请日：2023-07-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sammook Kang ,  Mihyun Kim ,  Hankyu Seong ,  Jihye Yeon

IPC: H01L25/075 ,  H01L33/62 ,  H01L33/38 ,  H01L33/50 ,  H01L25/16 ,  H01L27/15

CPC classification number: H01L25/0753 ,  H01L33/62 ,  H01L33/382 ,  H01L33/505 ,  H01L25/167 ,  H01L27/156

Abstract: A display apparatus includes a circuit board including a driver circuit, and a pixel array including a plurality of pixels on the circuit board, where each of the plurality of pixels includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, and where the pixel array includes a lower light emitting structure including a first lower light-emitting diode (LED) cell, a second lower LED cell, and a third lower LED cell respectively corresponding to the first sub-pixel, the second sub-pixel, and the third sub-pixel, each of the first lower LED cell, the second lower LED cell, and the third lower LED cell including a first semiconductor laminate configured to emit first light of a first wavelength, and a base insulating layer on lower surfaces of the first lower LED cell, the second lower LED cell, and the third lower LED cell.

公开(公告)号：US12224305B2

公开(公告)日：2025-02-11

申请号：US17162590

申请日：2021-01-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jihye Yeon ,  Hankyu Seong ,  Sunghyun Sim ,  Junbu Youn

IPC: H10K59/122 ,  H01L27/15 ,  H01L33/38 ,  H01L33/50 ,  H01L33/60 ,  H01L33/62 ,  H10K59/35

Abstract: A display device includes a circuit substrate including a driving circuit; an LED cell array disposed on the circuit substrate, and including a plurality of LED modules, each of the plurality of LED modules including at least two LED cells, from among a plurality of LED cells of the LED cell array, and an insulator coupling the at least two LED cells to each other; a gap-fill layer filling a gap between the plurality of LED modules; a partition disposed on the LED cell array, and defining a plurality of light emitting windows disposed in regions corresponding to the plurality of LED cells, respectively; and at least one color conversion layer disposed in at least a portion of the plurality of light emitting windows.

公开(公告)号：US20210366981A1

公开(公告)日：2021-11-25

申请号：US17162590

申请日：2021-01-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jihye Yeon ,  Hankyu Seong ,  Sunghyun Sim ,  Junbu Youn

IPC: H01L27/15 ,  H01L33/38 ,  H01L33/60 ,  H01L33/62 ,  H01L33/50

Abstract: A display device includes a circuit substrate including a driving circuit; an LED cell array disposed on the circuit substrate, and including a plurality of LED modules, each of the plurality of LED modules including at least two LED cells, from among a plurality of LED cells of the LED cell array, and an insulator coupling the at least two LED cells to each other; a gap-fill layer filling a gap between the plurality of LED modules; a partition disposed on the LED cell array, and defining a plurality of light emitting windows disposed in regions corresponding to the plurality of LED cells, respectively; and at least one color conversion layer disposed in at least a portion of the plurality of light emitting windows.

公开(公告)号：US12159895B2

公开(公告)日：2024-12-03

申请号：US17374568

申请日：2021-07-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jihye Yeon ,  Sammook Kang ,  Hankyu Seong ,  Jongin Yang ,  Hanul Yoo ,  Jihoon Yun

IPC: H01L27/15 ,  G09G3/32 ,  H01L33/40 ,  H01L33/42 ,  H01L33/46 ,  H01L33/50 ,  H01L33/58 ,  H01L33/62

Abstract: A display apparatus includes a circuit board including a driving circuit, and a pixel array including a plurality of pixels on the circuit board, each including a plurality of sub-pixels, and a light blocking partition between the plurality of sub-pixels. Each of the plurality of sub-pixels includes a lower light emitting diode (LED) cell configured to generate light of a first wavelength. A first sub-pixel includes a transparent resin structure on the first lower LED cell, a second sub-pixel includes an inter-cell insulating layer on the second lower LED cell and an upper LED cell having on the inter-cell insulating layer and configured to generate light of a second wavelength, and a third sub-pixel includes a wavelength conversion structure on the third lower LED cell and configured to convert light of the first wavelength into light of a third wavelength.

公开(公告)号：US20240030210A1

公开(公告)日：2024-01-25

申请号：US18223854

申请日：2023-07-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Juyeon Jeong ,  Mihyun Kim ,  Sihan Kim ,  Hankyu Seong ,  Jusong Eom ,  Jihye Yeon

IPC: H01L25/18 ,  H01L27/15 ,  H01L23/00

CPC classification number: H01L25/18 ,  H01L27/156 ,  H01L24/73 ,  H01L24/32 ,  H01L24/29 ,  H01L24/13 ,  H01L24/16 ,  H01L2224/29186 ,  H01L2224/29028 ,  H01L2224/32145 ,  H01L2224/13147 ,  H01L2224/13021 ,  H01L2224/16145 ,  H01L2224/73104 ,  H01L2924/059 ,  H01L2924/12041

Abstract: A display apparatus includes: a circuit board including a driving circuit; and a pixel array disposed on the circuit board and including pixels, each of the pixels having a plurality of sub-pixels. The pixel array includes: a semiconductor stack, a conductive partition structure and wavelength conversion portions. The semiconductor stack includes LED cells respectively constituting the plurality of sub-pixels. Each of the LED cells includes at least an active layer and a second conductivity-type semiconductor layer. The conductive partition structure is provided between sub-pixel spaces, respectively overlaps the LED cells on the semiconductor stack, and is provided as a first electrode. The wavelength conversion portions are respectively disposed on the sub-pixel spaces.

公开(公告)号：US11302745B2

公开(公告)日：2022-04-12

申请号：US16901451

申请日：2020-06-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jihye Yeon ,  Hanul Yoo ,  Jihoon Yun ,  Suhyun Jo

IPC: H01L27/15 ,  H01L33/50 ,  H01L33/32 ,  H01L33/38 ,  H01L33/46 ,  H01L33/62 ,  H01L25/18 ,  H01L27/12 ,  H01L33/00 ,  H01L23/00

Abstract: An LED module includes light emission windows; LED cells corresponding to the light emission windows, the LED cells each including a lower and upper light emitting structure, the lower light emitting structure having an upper surface with first and second regions and having a first conductivity-type semiconductor layer, the upper light emitting structure being on the first region of the lower light emitting structure and having a second conductivity-type semiconductor layer, the LED cells including an active layer between the first and second conductivity-type semiconductor layers; a protective insulating film on a side surface of the lower light emitting structure and on the second region; a light blocking film on the protective insulating film, between the LED cells; a gap-fill insulating film on the protective insulating film between the LED cells and contacting a side surface of the upper light emitting structure; a first electrode; and a second electrode.

公开(公告)号：US20240021751A1

公开(公告)日：2024-01-18

申请号：US18222296

申请日：2023-07-14

Applicant: SAMSUNG ELECTRONICS CO,. LTD.

Inventor： Jihye Yeon ,  Hankyu Seong ,  Sunghyun Sim ,  Donggun Lee ,  Youngjin Choi

IPC: H01L33/00 ,  H01L33/06 ,  H01L33/08

CPC classification number: H01L33/0093 ,  H01L33/06 ,  H01L33/08 ,  H01L33/325

Abstract: A method of manufacturing an LED module includes forming a first conductivity-type semiconductor base layer on a growth substrate; forming a mask pattern having first to third openings on the first conductivity-type semiconductor base layer, wherein the mask pattern the first to the third openings having different widths and arranged with a same pitch; simultaneously forming first to third light emitting laminates in the first to third openings, respectively; removing the mask pattern from the first conductivity-type semiconductor base layer; and removing an edge region of each of the first to third light emitting laminates, wherein first to third light emitting laminates include a first to third active layers configured to emit light of different wavelengths, respectively.

公开(公告)号：US11728371B2

公开(公告)日：2023-08-15

申请号：US17716492

申请日：2022-04-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jihye Yeon ,  Hanul Yoo ,  Jihoon Yun ,  Suhyun Jo

IPC: H01L27/15 ,  H01L33/50 ,  H01L33/32 ,  H01L33/38 ,  H01L33/46 ,  H01L33/62 ,  H01L25/18 ,  H01L33/00 ,  H01L27/12 ,  H01L23/00

CPC classification number: H01L27/156 ,  H01L24/08 ,  H01L24/89 ,  H01L25/18 ,  H01L27/124 ,  H01L27/1248 ,  H01L33/0075 ,  H01L33/32 ,  H01L33/382 ,  H01L33/46 ,  H01L33/502 ,  H01L33/505 ,  H01L33/62 ,  H01L2224/08146 ,  H01L2224/08147 ,  H01L2224/80001 ,  H01L2933/0016 ,  H01L2933/0025 ,  H01L2933/0041 ,  H01L2933/0066

Abstract: An LED module includes light emission windows; LED cells corresponding to the light emission windows, the LED cells each including a lower and upper light emitting structure, the lower light emitting structure having an upper surface with first and second regions and having a first conductivity-type semiconductor layer, the upper light emitting structure being on the first region of the lower light emitting structure and having a second conductivity-type semiconductor layer, the LED cells including an active layer between the first and second conductivity-type semiconductor layers; a protective insulating film on a side surface of the lower light emitting structure and on the second region; a light blocking film on the protective insulating film, between the LED cells; a gap-fill insulating film on the protective insulating film between the LED cells and contacting a side surface of the upper light emitting structure; a first electrode; and a second electrode.

公开(公告)号：US11380818B2

公开(公告)日：2022-07-05

申请号：US15932000

申请日：2020-05-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jongin Yang ,  Hankyu Seong ,  Sunghyun Sim ,  Jihye Yeon ,  Hanul Yoo ,  Jihoon Yun

IPC: H01L33/24 ,  H01L33/50 ,  H01L33/38 ,  H01L33/44 ,  H01L33/62 ,  H01L27/15 ,  H01L33/00

Abstract: A semiconductor light emitting device including at least one light emitting structure on a substrate, the at least one light emitting structure including a first semiconductor pattern, an active pattern, and a second semiconductor pattern sequentially stacked in a vertical direction substantially perpendicular to an upper surface of the substrate; a first electrode contacting a substrate-facing surface of the first semiconductor pattern; and a second electrode at least partially surrounding and contacting a sidewall of the second semiconductor pattern.