公开(公告)号：US20240206280A1

公开(公告)日：2024-06-20

申请号：US18520126

申请日：2023-11-27

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Hun KIM ,  Jeong Seok LEE ,  WOOCHEOL PARK ,  Seung Yong SONG ,  Hee Jun YANG ,  Kwan Hyuck YOON ,  CHANGHEE LEE

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/123

CPC classification number: H10K59/80523 ,  H10K59/1201 ,  H10K59/123

Abstract: The present disclosure relates to a display device and a method for manufacturing the same. A display device, according to an embodiment, includes: a substrate; a thin film transistor on the substrate; a first electrode connected to the thin film transistor; a light emitting layer on the first electrode; and a second electrode on the light emitting layer. The second electrode includes a metal material and a graphene material that are mixed.

公开(公告)号：US20230044202A1

公开(公告)日：2023-02-09

申请号：US17708670

申请日：2022-03-30

Applicant: Samsung Display Co., Ltd.

Inventor： JIYOON KIM ,  CHANGHEE LEE ,  YOOLGUK KIM

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: A display device includes a base layer, a first electrode on the base layer, a pixel-defining layer in which an opening exposing an upper surface of the first electrode is defined, a protective layer overlapping the pixel-defining layer and between the pixel-defining layer and the first electrode, a functional layer on the first electrode in the opening, an auxiliary electrode on an upper surface of the pixel-defining layer, and a second electrode on the functional layer and the auxiliary electrode.

公开(公告)号：US20240414933A1

公开(公告)日：2024-12-12

申请号：US18442156

申请日：2024-02-15

Applicant: Samsung Display Co., LTD. ,  Seoul National University R&DB Foundation

Inventor： YUNHYUK KO ,  CHANGHEE LEE ,  Harkjune LEE ,  Kookheon CHAR

IPC: H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K102/00

Abstract: A method of observing Auger recombination of quantum dots in an Electron-Only Device (EOD) including preparing an EOD device, wherein the EOD device includes quantum dots, applying a current to the EOD device and observing negative trions formed in the EOD device. Additionally, a method of observing Auger recombination of quantum dots in a Hole-Only Device (HOD) including preparing an HOD device, wherein the HOD device includes quantum dots, applying a current to the HOD device and observing positive trions formed in the HOD device.

公开(公告)号：US20240074286A1

公开(公告)日：2024-02-29

申请号：US18229225

申请日：2023-08-02

Applicant: Samsung Display Co., LTD.

Inventor： HYUNEOK SHIN ,  TAEWOOK KANG ,  SUNGJOO KWON ,  JOONYONG PARK ,  JUHYUN LEE ,  CHANGHEE LEE ,  SAMTAE JEONG ,  YUNG BIN CHUNG

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/121 ,  H10K59/122 ,  H10K59/124 ,  H10K71/20 ,  H10K71/60

CPC classification number: H10K59/80517 ,  H10K59/1201 ,  H10K59/1213 ,  H10K59/122 ,  H10K59/124 ,  H10K71/231 ,  H10K71/60 ,  H10K2102/103

Abstract: A display device includes a circuit layer and a display element layer on the circuit layer. The display element layer includes a light-emitting element and a pixel-defining film, through which a pixel opening is defined, and the light-emitting element includes a first electrode exposed through the pixel opening, a second electrode disposed opposite to the first electrode, and a light-emitting layer disposed between the first electrode and the second electrode. The first electrode includes a metal layer and a graphene layer disposed on an upper surface of the metal layer, and the metal layer and the graphene layer each have a hexagonal closed packed structure.

公开(公告)号：US20220123060A1

公开(公告)日：2022-04-21

申请号：US17354210

申请日：2021-06-22

Applicant: Samsung Display Co., Ltd.

Inventor： JINGOO KANG ,  SUNGWOON KIM ,  CHANGHEE LEE

IPC: H01L27/32 ,  H01L51/56

Abstract: A display device including a first light emitting element including a first emission layer and a first charge transport layer adjacent to the first emission layer, the first emission layer including a first quantum dot to emit first light, and a second light emitting element including a second emission layer and a second charge transport layer adjacent to the second emission layer, the second emission layer including a second quantum dot to emit second light that is longer in wavelength than the first light. The first charge transport layer includes a first metal oxide. The second charge transport layer includes a second metal oxide different from the first metal oxide.