公开(公告)号：US12283604B2

公开(公告)日：2025-04-22

申请号：US18123429

申请日：2023-03-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Hyuk Kang ,  Hyun Min Cho ,  Dae Hyun Kim ,  Joo Yeol Lee ,  Hyun Deok Im

IPC: H01L27/15 ,  F21K9/68 ,  H01L25/075 ,  H01L33/00 ,  H01L33/40 ,  H01L33/60 ,  H01L33/62

Abstract: A light-emitting device includes: a substrate; a unit light-emitting area disposed on the substrate; first and second electrodes disposed in the unit light-emitting area to be separated from each other; a plurality of rod-shaped LEDs disposed between the first and second electrodes; a reflective contact electrode disposed on opposite ends of the rod-shaped LEDs to electrically connect the rod-shaped LEDs to the first and second electrodes; and a light-transmitting structure disposed between the first and second electrodes and extending to cross the rod-shaped LEDs.

公开(公告)号：US12272770B2

公开(公告)日：2025-04-08

申请号：US17783969

申请日：2020-11-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eun A Yang ,  Han Su Kim ,  Jong Hyuk Kang ,  Hyun Min Cho

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

Abstract: A display device may include pixels disposed on a substrate. Each of the pixels may include a first electrode, a second electrode spaced apart from the first electrode and enclosing a perimeter of the first electrode, light emitting elements disposed between the first electrode and the second electrode, and each including a first end and a second end, a third electrode overlapping the first electrode and the first end of each of the light emitting elements in a plan view, and electrically contacting the first electrode and the first end of each of the light emitting elements, and a fourth electrode overlapping the second electrode and the second end of each of the light emitting elements in a plan view, and electrically contacting the second electrode and the second end of each of the light emitting elements. The light emitting elements may be radially disposed around the first electrode.

公开(公告)号：US12249674B2

公开(公告)日：2025-03-11

申请号：US17786332

申请日：2020-12-11

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Deok Im ,  Jong Hyuk Kang ,  Hyun Min Cho

IPC: H01L33/38 ,  H01L25/16 ,  H01L33/62

Abstract: A display device includes a first electrode extending in a first direction; a second electrode extending in the first direction and spaced apart from, in a second direction, the first electrode; a light-emitting element having a shape extending in a direction and between the first and second electrodes such that the direction is parallel to the second direction; a first contact electrode having a shape extending in a third direction and having at least a portion on the first electrode; and a second contact electrode having a shape extending in the third direction, spaced apart from, in a fourth direction, the first contact electrode, and having at least a portion on the second electrode, the first contact electrode electrically contacts a side of the light-emitting element, and the second contact electrode electrically contacts another side of the light-emitting element.

公开(公告)号：US12224307B2

公开(公告)日：2025-02-11

申请号：US17605781

申请日：2020-01-16

Applicant: SAMSUNG DISPLAY Co., LTD.

Inventor： Xinxing Li ,  Tae Jin Kong ,  Dae Hyun Kim ,  Veidhes Basrur ,  Hyun Min Cho

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

Abstract: A display device includes a pixel disposed in a display area. The pixel includes a first electrode; a first insulating layer disposed on the first electrode, and including openings, each of the openings exposing different areas of the first electrode and defining respective cells; light emitting elements disposed in the respective cells, each of the light emitting elements including a first end electrically connected to the first electrode; and a second end protruding upward from the first insulating layer; and a second electrode disposed on the light emitting elements, and electrically connected to the second ends of each of the light emitting elements.

公开(公告)号：US20250040330A1

公开(公告)日：2025-01-30

申请号：US18912404

申请日：2024-10-10

Applicant: Samsung Display Co., LTD.

Inventor： Dae Hyun Kim ,  Jong Hyuk Kang ,  Joo Yeol Lee ,  Hyun Deok Im ,  Hyun Min Cho

IPC: H01L27/15 ,  H01L25/075 ,  H01L25/16 ,  H01L27/12 ,  H01L29/786 ,  H01L33/06 ,  H01L33/20 ,  H01L33/32 ,  H01L33/38 ,  H01L33/40 ,  H01L33/44 ,  H01L33/60 ,  H01L33/62

Abstract: A light emitting device, includes: a substrate; a light emitting element on the substrate, the light emitting element having a first end portion and a second end portion arranged in a longitudinal direction; one or more partition walls disposed on the substrate, the one or more partition walls being spaced apart from the light emitting element; a first reflection electrode adjacent the first end portion of the light emitting element; a second reflection electrode adjacent the second end portion of the light emitting element; a first contact electrode connected to the first reflection electrode and the first end portion of the light emitting element; an insulating layer on the first contact electrode, the insulating layer having an opening exposing the second end portion of the light emitting element and the second reflection electrode to the outside; and a second contact electrode on the insulating layer.

公开(公告)号：US12211963B2

公开(公告)日：2025-01-28

申请号：US18519929

申请日：2023-11-27

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Deok Im ,  Jong Hyuk Kang ,  Dae Hyun Kim ,  Joo Yeol Lee ,  Hyun Min Cho

IPC: H01L33/52 ,  H01L25/075 ,  H01L33/38 ,  H01L33/48 ,  H01L33/56 ,  H01L33/58 ,  H01L25/16 ,  H01L27/12 ,  H01L33/20 ,  H01L33/32 ,  H01L33/54 ,  H01L33/62

Abstract: A light emitting device includes: a base substrate; a plurality of unit regions provided on the base substrate; a barrier disposed at a boundary of the unit regions to surround each of the unit regions; a dam disposed in each of the unit regions to be spaced apart from the barrier; a first electrode provided in each of unit light emitting regions surrounded by the dam; a second electrode disposed in each of the unit light emitting regions, the second electrode of which at least one region is provided opposite to the first electrode; and one or more LEDs provided in each of the unit light emitting regions, the one or more LEDs being electrically connected between the first electrode and the second electrode.

公开(公告)号：US12183857B2

公开(公告)日：2024-12-31

申请号：US17263871

申请日：2019-01-30

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Uk Kim ,  Je Won Yoo ,  Hyun Min Cho ,  Jung Hong Min

IPC: H01L33/50 ,  H01L25/16 ,  G09G3/32 ,  H01L33/20 ,  H01L33/62

Abstract: A light emitting device may include: a substrate; a light emitting element located on the substrate and configured to emit light; a first electrode and a second electrode spaced from each other with the light emitting element interposed therebetween; a color conversion layer located on the substrate and configured to convert light emitted from the light emitting element into light having a specific color; a first contact electrode configured to electrically couple the first electrode with a first end of the light emitting element; and a second contact electrode configured to electrically couple the second electrode with a second end of the light emitting element. In a plan view, the color conversion layer may be spaced from the light emitting element and overlaps with at least one of the first and the second contact electrodes.

公开(公告)号：US12074256B2

公开(公告)日：2024-08-27

申请号：US17284345

申请日：2019-04-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun Deok Im ,  Jong Hyuk Kang ,  Dae Hyun Kim ,  Hyun Min Cho ,  Dong Hyun Kim

IPC: H01L33/38 ,  H01L25/075 ,  H01L25/16 ,  H01L33/62

CPC classification number: H01L33/38 ,  H01L25/0753 ,  H01L25/167 ,  H01L33/62 ,  H01L2933/0066

Abstract: A light emitting device may include at least one first electrode and at least one second electrode disposed on different layers on a substrate; a first insulating layer disposed between the first electrode and the second electrode; and at least one light emitting diode electrically connected between the at least one first electrode and the second electrode.

公开(公告)号：US11997914B2

公开(公告)日：2024-05-28

申请号：US17255406

申请日：2018-12-21

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Min Cho ,  Shin Il Choi ,  Sang Gab Kim ,  Tae Sung Kim

IPC: H01L29/786 ,  H10K59/121 ,  H10K59/124 ,  H10K71/16 ,  H10K71/20 ,  H10K71/00 ,  H10K102/00

CPC classification number: H10K71/233 ,  H10K59/1216 ,  H10K59/124 ,  H10K71/166 ,  H10K71/00 ,  H10K2102/00 ,  H10K2102/351

Abstract: A method of manufacturing an organic light-emitting display device is provided. The method includes: forming a lower electrode pattern on a substrate, which includes a transistor area and a capacitor area, to correspond to the transistor area and forming a buffer layer on the substrate including the lower electrode pattern; forming a thin-film transistor including an oxide semiconductor layer on the buffer layer; forming an interlayer insulating film on the thin-film transistor; forming a photoresist film pattern including first and second holes, which have different depths, on the interlayer insulating film; and forming a first contact hole, which exposes the lower electrode pattern, and second contact holes, which expose the oxide semiconductor layer, at the same time using the photoresist film pattern.

公开(公告)号：US11935986B2

公开(公告)日：2024-03-19

申请号：US17298445

申请日：2019-05-30

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Uk Kim ,  Jin Oh Kwag ,  Keun Kyu Song ,  Sung-Chan Jo ,  Hyun Min Cho

IPC: H01L33/38 ,  H01L25/075 ,  H01L33/00 ,  H01L33/24 ,  H01L33/62

CPC classification number: H01L33/382 ,  H01L25/0753 ,  H01L33/005 ,  H01L33/24 ,  H01L33/62 ,  H01L2933/0016 ,  H01L2933/0066

Abstract: A display device may include: a substrate including a display area and a non-display area; and pixels in the display area, and each including sub-pixels. Each sub-pixel may include a pixel circuit layer, and a display element layer including at least one light emitting element. The display element layer may include: a first electrode on the pixel circuit layer; a second electrode on the first electrode and electrically insulated from the first electrode; the light emitting element including a first end portion coupled to the first electrode and a second end portion coupled to the second electrode, and between the first electrode and the second electrode; an intermediate layer enclosing at least one area of the light emitting element, and on the first electrode; a connection line electrically connected to the second electrode. The second electrode may be on the intermediate layer.