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.

公开(公告)号：US11842681B2

公开(公告)日：2023-12-12

申请号：US17384556

申请日：2021-07-23

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Min Cho ,  Sung Chul Kim ,  Dae Hyun Kim ,  Hye Yong Chu ,  Jong Hyuk Kang ,  Keun Kyu Song ,  Joo Yeol Lee ,  Bek Hyun Lim ,  Hyun Deok Im

IPC: G09G3/3233 ,  H01L33/20 ,  H01L33/00 ,  H01L33/44 ,  H01L33/52 ,  H01L33/38 ,  H01L25/075 ,  H01L25/16 ,  H05B45/40 ,  H01L33/62

CPC classification number: G09G3/3233 ,  H01L25/0753 ,  H01L25/167 ,  H01L33/0095 ,  H01L33/20 ,  H01L33/38 ,  H01L33/44 ,  H01L33/52 ,  H05B45/40 ,  H01L33/62

Abstract: A display device includes: a substrate; a display element layer on one surface of the substrate and including at least one light emitting element emitting light; and a pixel circuit portion on the display element layer and including at least one transistor electrically connected to the light emitting element, wherein the display element layer includes: a first electrode on the substrate and electrically connected to one end of the light emitting element; a second electrode on the substrate and electrically connected to the other end of the light emitting element; and an insulation layer on the substrate including the second electrode, and having a first opening exposing a portion of the second electrode, and wherein the second electrode is electrically connected to the transistor through the first opening.

公开(公告)号：US11810905B2

公开(公告)日：2023-11-07

申请号：US17250633

申请日：2019-01-03

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Min Cho ,  Dae Hyun Kim ,  Dong Uk Kim ,  Jung Hong Min ,  Seung A Lee ,  Hyung Rae Cha

IPC: H01L25/075 ,  H01L27/12 ,  H01L33/00 ,  H01L33/22 ,  H01L33/62

CPC classification number: H01L25/0753 ,  H01L27/1214 ,  H01L33/0093 ,  H01L33/22 ,  H01L33/62 ,  H01L2933/0066

Abstract: Provided are a light emitting device, a method for manufacturing same, and a display device including the light emitting device. The method for manufacturing the light emitting device comprises the steps of: preparing a lower substrate including a substrate and a buffer semiconductor layer formed on the substrate, forming an element rod by forming a separating layer disposed on the lower substrate, forming a first conductivity type semiconductor layer, an active material layer, and a second conductivity type semiconductor layer on the separating layer, and etching the first conductivity type semiconductor layer, the active material layer, the second conductivity type semiconductor layer, and the separating layer in a direction perpendicular to the lower substrate, forming a first insulating layer surrounding an outer circumferential surface of the element rod, forming a second insulating layer surrounding an outer circumferential surface of the first insulating layer and separating the element rod from the lower substrate to form a light emitting element.

公开(公告)号：US11787190B2

公开(公告)日：2023-10-17

申请号：US17418048

申请日：2019-11-06

Applicant: Samsung Display Co., LTD.

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

IPC: B41J2/175 ,  B41J2/125 ,  B41J2/195 ,  G02F1/13 ,  H10K71/13

CPC classification number: B41J2/17503 ,  B41J2/125 ,  B41J2/17566 ,  B41J2/195 ,  G02F1/1303 ,  H10K71/135

Abstract: An inkjet printing device includes an ink reservoir that stores ink containing particles, an inkjet head part that receives the ink from the ink reservoir and ejects the ink onto a target substrate and a driver for rotating the ink reservoir.