公开(公告)号：US20220285619A1

公开(公告)日：2022-09-08

申请号：US17450175

申请日：2021-10-07

Applicant: Samsung Display Co., Ltd.

Inventor： Daewoong LEE ,  Hyomin KO ,  Bora Lee

IPC: H01L51/00 ,  C07C211/61 ,  C09K11/06 ,  C07D209/86

Abstract: Provided are a light-emitting device and an electronic apparatus including the same. The light-emitting device includes: an anode; a cathode; an interlayer including an emission layer between the anode and the cathode; and a hole transport region between the anode and the emission layer, wherein the hole transport region includes a first layer and a second layer, the first layer is between the anode and the second layer, the first layer includes a first compound represented by Formula 1, the second layer includes a second compound, and a charge mobility of the first compound is lower than a charge mobility of the second compound.

公开(公告)号：US20230165031A1

公开(公告)日：2023-05-25

申请号：US17992063

申请日：2022-11-22

Applicant: Samsung Display Co., Ltd.

Inventor： Hyomin KO ,  Bora LEE

IPC: H01L51/00

CPC classification number: H01L51/5072 ,  H01L51/5036 ,  H01L51/5275 ,  H01L51/0094

Abstract: A light-emitting device includes an electron transport layer, and the electron transport layer include a mixture of a first material, a second material, and a third material, wherein the first material includes an electron transport compound, the second material includes a metal-containing material, and the third material includes a low-refractive-index compound. An electronic apparatus including the light-emitting device is also provided.

公开(公告)号：US20210280831A1

公开(公告)日：2021-09-09

申请号：US17093284

申请日：2020-11-09

Applicant: Samsung Display Co., Ltd.

Inventor： Bora LEE ,  Hyomin KO

IPC: H01L51/52 ,  H01L51/50

Abstract: A light emitting diode of an embodiment of the present disclosure includes a first electrode, a hole transport region on an upper portion of the first electrode and having a first refractive index, an emission layer on an upper portion of the hole transport region and having a second refractive index less than the first refractive index, an electron transport region on an upper portion of the emission layer, and a second electrode on an upper portion of the electron transport region.

公开(公告)号：US20230225202A1

公开(公告)日：2023-07-13

申请号：US18080969

申请日：2022-12-14

Applicant: Samsung Display Co., Ltd.

Inventor： Illhun CHO ,  Hyomin KO ,  Bora LEE

IPC: H10K85/60 ,  C07D251/24 ,  H10K85/40 ,  C07F7/08 ,  C07F9/53 ,  H10K50/16 ,  H10K10/84

CPC classification number: H10K85/654 ,  C07D251/24 ,  H10K85/40 ,  C07F7/0812 ,  H10K85/652 ,  C07F9/5325 ,  H10K50/16 ,  H10K10/84 ,  H10K2101/30

Abstract: Embodiments provide a cyclic compound, a light-emitting device including the cyclic compound, and an electronic apparatus including the light-emitting device. The light-emitting device includes a first electrode, a second electrode facing the first electrode, an interlayer between the first electrode and the second electrode and including an emission layer; and at least one cyclic compound. The cyclic compound is represented by Formula 1:




The description of Formula 1 is provided in the specification.

公开(公告)号：US20220077395A1

公开(公告)日：2022-03-10

申请号：US17240590

申请日：2021-04-26

Applicant: Samsung Display Co., Ltd.

Inventor： Bora LEE ,  Hyomin KO ,  Ilsoo OH

IPC: H01L51/00 ,  G02B5/20 ,  G02B5/30 ,  H01L33/50

Abstract: A light-emitting device includes a first electrode, a second electrode facing the first electrode, an interlayer disposed between the first electrode and the second electrode and including an emission layer, a first capping layer, and a second capping layer. A refractive index of the first capping layer is greater than a refractive index of the second capping layer, and the first capping layer and the second capping layer are each an organic layer. An electronic apparatus including the light-emitting device is also provided.

公开(公告)号：US20200212138A1

公开(公告)日：2020-07-02

申请号：US16536428

申请日：2019-08-09

Applicant: Samsung Display Co., Ltd.

Inventor： Chang-Min LEE ,  Yujin KANG ,  Hyomin KO ,  Daehyeon KIM ,  JUWON LEE

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/50 ,  H01L51/44 ,  G06K9/00 ,  G06F3/044

Abstract: Provided is a display device including a light emitting device and a light receiving device. The light receiving device includes a first light receiving electrode and a light receiving layer. The light receiving device receives a second light reflected from an external object and generates current.

公开(公告)号：US20230096326A1

公开(公告)日：2023-03-30

申请号：US17938582

申请日：2022-10-06

Applicant: Samsung Display Co., Ltd.

Inventor： Bora LEE ,  Hyomin KO

IPC: H01L51/52 ,  H01L51/50

Abstract: A light emitting diode of an embodiment of the present disclosure includes a first electrode, a hole transport region on an upper portion of the first electrode and having a first refractive index, an emission layer on an upper portion of the hole transport region and having a second refractive index less than the first refractive index, an electron transport region on an upper portion of the emission layer, and a second electrode on an upper portion of the electron transport region.

公开(公告)号：US20210226086A1

公开(公告)日：2021-07-22

申请号：US17004786

申请日：2020-08-27

Applicant: Samsung Display Co., LTD.

Inventor： Bora LEE ,  Hyomin KO ,  Ilhun CHO

IPC: H01L33/14 ,  G02F1/13357 ,  H01L33/60

Abstract: Provided is a light emitting element including a first electrode, a hole transport region disposed over the first electrode, an emission layer disposed over the hole transport region, an electron transport region disposed over the emission layer, and a second electrode disposed over the electron transport region, wherein the hole transport region includes a first hole transport layer disposed adjacent to the first electrode and having a first refractive index, a second hole transport layer disposed adjacent to the emission layer and having a second refractive index, and a third hole transport layer disposed between the first hole transport layer and the second hole transport layer and having a third refractive index greater than each of the first refractive index and the second refractive index, thereby achieving high light extraction efficiency and high luminous efficiency.

公开(公告)号：US20210183958A1

公开(公告)日：2021-06-17

申请号：US16928544

申请日：2020-07-14

Applicant: Samsung Display Co., Ltd.

Inventor： Hyomin KO ,  Changmin LEE

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  H01L51/00

Abstract: An organic light-emitting device includes: a first pixel electrode on a first emission region, a second pixel electrode on a second emission region, and a third pixel electrode on a third emission region; a counter electrode facing each of the first pixel electrode, the second pixel electrode, and the third pixel electrode; and an interlayer between the counter electrode and each of the first pixel electrode, the second pixel electrode, and the third pixel electrode. The interlayer includes an emission layer, and a hole transport region between the emission layer and each of the first pixel electrode, the second pixel electrode, and the third pixel electrode, the hole transport region includes a planarization layer that includes an amine-based compound represented by Formula 1, Formula 2A, or Formula 2B, and the amine-based compound has a crystallization peak having a noise-to-peak ratio of 1.75 or more in an X-ray diffraction (XRD) spectrum.