公开(公告)号：US20230056417A1

公开(公告)日：2023-02-23

申请号：US17948056

申请日：2022-09-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Rag DO ,  Yeon Goog SUNG

IPC: H01L29/06 ,  H01L21/306 ,  H01L21/02 ,  H01L21/3063 ,  H01L29/41 ,  H01L21/304 ,  H01L21/20 ,  B82Y40/00 ,  H01L21/762

Abstract: Provided is a method of manufacturing a nanorod. The method comprising comprises the steps of: providing a growth substrate and a support substrate; epitaxially growing a nanomaterial layer onto one surface of the growth substrate; forming a sacrificial layer on one surface of the support substrate; bonding the nanomaterial layer with the sacrificial layer; separating the growth substrate from the nanomaterial layer; flattening the nanomaterial layer; forming a nanorod by etching the nanomaterial layer; and separating the nanorod by removing the sacrificial layer.

公开(公告)号：US20220069162A1

公开(公告)日：2022-03-03

申请号：US17423455

申请日：2019-11-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Rag DO ,  Hye Lim KANG ,  Hoo Keun PARK

IPC: H01L33/20 ,  H01L33/00 ,  H01L33/38 ,  H01L27/15

Abstract: A method for manufacturing a light-emitting element, and a display device including a light-emitting element are provided. A method for manufacturing a light-emitting element includes: preparing a base substrate and at least one semiconductor rod formed on the base substrate; a first separating including forming a first element structure, which includes a semiconductor rod of the at least one semiconductor rod and a first support formed around the outer surface of the semiconductor rod, and separating the first element structure from the base substrate; removing at least a part of the first support so as to partially expose the semiconductor rod, and forming a second element structure which includes the exposed semiconductor rod and a second support around the outer surface of the first support; and a second separating including separating the semiconductor rod from the second element structure.

公开(公告)号：US20220069005A1

公开(公告)日：2022-03-03

申请号：US17423450

申请日：2019-11-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Rag DO ,  Hoo Keun PARK

IPC: H01L27/15 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44 ,  H01L33/58

Abstract: Provided are a light emitting element and a display device comprising same. The light emitting element comprises: a first conductivity type semiconductor doped with a dopant having a first polarity, a second conductivity type semiconductor doped with a dopant having a second polarity opposite to the first polarity; an active layer between the first conductivity type semiconductor and the second conductivity type semiconductor; and an insulation film which surrounds at least a side surface of the active layer, wherein the insulation film includes an insulation coating film and at least one light conversion particle on at least a portion of the insulation coating film.

公开(公告)号：US20210210666A1

公开(公告)日：2021-07-08

申请号：US17182060

申请日：2021-02-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Rag DO ,  Yeon Goog SUNG

IPC: H01L33/62 ,  H01L23/00 ,  H01L33/38

Abstract: Provided is a ultra-small light-emitting diode (LED) electrode assembly including a base substrate; an electrode line formed on the base substrate, and including a first electrode and a second electrode formed in a line shape to be interdigitated with each other while being spaced apart from each other; and at least one ultra-small LED device connected to the electrode line. A cross section of at least one of the first and second electrodes in a vertical direction has a height variation such that the first and second electrodes easily come in contact with the at least one ultra-small LED device.

公开(公告)号：US20220085247A1

公开(公告)日：2022-03-17

申请号：US17423084

申请日：2019-07-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Rag DO ,  Byung Ju LEE

IPC: H01L33/38 ,  H01L33/20 ,  H01L27/15 ,  H01L33/62 ,  H01L33/00

Abstract: A light emitting device, a display device including a light emitting device, and a method of manufacturing a display device are provided. A light emitting device may include a substrate, and a plurality of light emitting element layers stacked on the substrate. Each of the light emitting element layers may include an insulating layer entirely disposed on the substrate, a first electrode and a second electrode disposed on the insulating layer and spaced apart from each other, and a plurality of light emitting elements disposed between the first electrode and the second electrode.

公开(公告)号：US20210335903A1

公开(公告)日：2021-10-28

申请号：US17329005

申请日：2021-05-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Rag DO ,  Yun Jae EO ,  Yeon Goog SUNG

IPC: H01L27/32 ,  H01L33/50 ,  H01L33/38 ,  G09G3/32 ,  H01L27/15 ,  H01L25/075

Abstract: A full-color light emitting diode (LED) display having an improved luminance is provided herein. More specifically, provided herein are a full-color LED display, in which an amount of light blocked by electrodes and not extracted is minimized and ultra-small LED devices are connected to ultra-small electrodes without defects such as electrical short circuits and the like, wherein the full-color LED display exhibits a further improved luminance when a direct current (DC) driving voltage is used and each pixel of the full-color LED display exhibits uniform luminance when the DC driving voltage is used, and a method of manufacturing the same.

公开(公告)号：US20210005596A1

公开(公告)日：2021-01-07

申请号：US17027622

申请日：2020-09-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Rag DO ,  Yeon Goog SUNG

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

Abstract: Provided is a method of manufacturing a ultra-small light-emitting diode (LED) electrode assembly, the method including preparing a base substrate, forming an electrode line including a first electrode and a second electrode on the base substrate, positioning a guide member having a plurality of slit portions therein on the base substrate, and inserting ultra-small LED devices into the plurality of slit portions of the guide member.

公开(公告)号：US20200212178A1

公开(公告)日：2020-07-02

申请号：US16806639

申请日：2020-03-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Rag DO ,  Yeon Goog SUNG

IPC: H01L29/06 ,  H01L21/306 ,  H01L21/02 ,  H01L21/3063 ,  H01L29/41 ,  H01L21/304 ,  H01L21/205 ,  H01L21/20 ,  B82Y40/00 ,  H01L21/762

Abstract: Provided is a method of manufacturing a nanorod. The method comprising comprises the steps of: providing a growth substrate and a support substrate; epitaxially growing a nanomaterial layer onto one surface of the growth substrate; forming a sacrificial layer on one surface of the support substrate; bonding the nanomaterial layer with the sacrificial layer; separating the growth substrate from the nanomaterial layer; flattening the nanomaterial layer; forming a nanorod by etching the nanomaterial layer; and separating the nanorod by removing the sacrificial layer.

公开(公告)号：US20190088707A1

公开(公告)日：2019-03-21

申请号：US15705284

申请日：2017-09-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Rag DO ,  Yun Jae EO ,  Yeon Goog SUNG

IPC: H01L27/15 ,  H01L33/60 ,  H01L33/64

CPC classification number: H01L27/153 ,  H01L25/0753 ,  H01L33/0095 ,  H01L33/36 ,  H01L33/60 ,  H01L33/62 ,  H01L33/644 ,  H01L2933/0066

Abstract: An ultra-small light-emitting diode (LED) electrode assembly having an improved luminance is provided. More particularly, an ultra-small LED electrode assembly in which light, which is blocked by an electrode and cannot be extracted, is minimized, an ultra-small LED device is connected to an ultra-small electrode without a defect such as an electrical short-circuit, and a very excellent luminance is exhibited even at a direct current (DC) driving voltage, and a method of manufacturing the same are provided.

公开(公告)号：US20220077228A1

公开(公告)日：2022-03-10

申请号：US17423017

申请日：2019-07-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Rag DO ,  Yun Jae EO

IPC: H01L27/15 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44

Abstract: A light emitting device may include first electrodes and second electrodes that are spaced apart from each other in a first direction, light emitting elements electrically connected between adjacent first and second electrodes among the first and the second electrodes, and a third electrode spaced apart from the first electrodes and the second electrodes. The third electrode may be electrically separated from the first electrodes and the second electrodes.