公开(公告)号：US20210119168A1

公开(公告)日：2021-04-22

申请号：US17131555

申请日：2020-12-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： MINSOO CHOI ,  MINJE KIM ,  EUNG DO KIM ,  HYUNYOUNG KIM ,  HYOJEONG KIM ,  HYOSUP SHIN ,  SEOKGYU YOON ,  YOUNGKI LEE ,  JUNGSUB LEE ,  JIYOUNG LEE ,  HYEJIN JUNG ,  KUNWOOK CHO ,  HYEON GU CHO ,  YOUNGEUN CHOI ,  JAEJIN LYU

IPC: H01L51/50 ,  H01L51/00 ,  C09K11/06

Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a host having a first luminescent onset wavelength, a first dopant having a second luminescent onset wavelength, and a second dopant different from the first dopant and having a third luminescent onset wavelength. The third luminescent onset wavelength is greater than each of the first luminescent onset wavelength and the second luminescent onset wavelength, and the device has improved emission efficiency and/or long-lifespan characteristics.

公开(公告)号：US20210098716A1

公开(公告)日：2021-04-01

申请号：US17035552

申请日：2020-09-28

Applicant: Samsung Display Co., Ltd.

Inventor： JUNGSUB LEE ,  HYUNYOUNG KIM ,  JIYOUNG LEE ,  HYEJIN JUNG ,  MINJE KIM ,  EUNG DO KIM ,  HYOJEONG KIM ,  HYOSUP SHIN ,  SEOKGYU YOON ,  YOUNGKI LEE ,  KUNWOOK CHO ,  HYEON GU CHO ,  MINSOO CHOI ,  YOUNGEUN CHOI ,  HYEIN JEONG ,  JAEJIN LYU

IPC: H01L51/00

Abstract: An organic electroluminescence device according to an embodiment of the present disclosure includes a first electrode, a second electrode, and an emission layer. The emission layer includes host compounds and dopant compounds. The hot compounds include a first host compound represented by Formula 1, and a second host compound represented by Formula 2, and the dopant compounds include an assistant dopant compound represented by Formula 3, and a light-emitting dopant compound represented by Formula 4: Accordingly, the organic electroluminescence device according to an embodiment may achieve high efficiency and long life.

公开(公告)号：US20210098714A1

公开(公告)日：2021-04-01

申请号：US16906991

申请日：2020-06-19

Applicant: Samsung Display Co., Ltd.

Inventor： MINSOO CHOI ,  MINJE KIM ,  EUNG DO KIM ,  HYUNYOUNG KIM ,  HYOJEONG KIM ,  HYOSUP SHIN ,  SEOKGYU YOON ,  YOUNGKI LEE ,  JUNGSUB LEE ,  JIYOUNG LEE ,  HYEJIN JUNG ,  KUNWOOK CHO ,  HYEON GU CHO ,  YOUNGEUN CHOI ,  JAEJIN LYU

IPC: H01L51/00

Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a host having a first luminescent onset wavelength, a first dopant having a second luminescent onset wavelength, and a second dopant different from the first dopant and having a third luminescent onset wavelength. The third luminescent onset wavelength is greater than each of the first luminescent onset wavelength and the second luminescent onset wavelength, and the device has improved emission efficiency and/or long-lifespan characteristics.

公开(公告)号：US20230140380A1

公开(公告)日：2023-05-04

申请号：US17880871

申请日：2022-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： JUNYONG SHIN ,  SEOKGYU YOON ,  DONGKYU SEO ,  DAEHO LEE ,  BYUNGSEOK LEE ,  JIN-SOO JUNG ,  MINSOO CHOI ,  YOUNGEUN CHOI

IPC: H01L27/28

Abstract: An electronic device including: a base layer; a display element layer disposed on the base layer and including a pixel defining layer that includes an opening, and a light emitting element and a light receiving element, which are separated by the pixel defining layer; and an input sensing layer disposed on the display element layer, wherein each of the light emitting element and the light receiving element includes: a first electrode; a hole transport region disposed on the first electrode; an electron transport region disposed on the hole transport region; and a second electrode disposed on the electron transport region, wherein the second electrode is a common layer in the light emitting element and the light receiving element, the light emitting element comprises a light emitting layer disposed between the hole transport region and the electron transport region, and the light receiving element comprises a light receiving layer which is provided between the first electrode and the second electrode and disposed in a layer different from the light emitting layer in a thickness direction of the electronic device.

公开(公告)号：US20220359628A1

公开(公告)日：2022-11-10

申请号：US17652771

申请日：2022-02-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： MINSOO CHOI ,  Seokgyu Yoon ,  Byeongwook Yoo ,  Changwoong Chu

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

Abstract: An electronic device includes a base layer and a display element layer including a pixel definition layer having an opening defined therethrough, a light emitting element, and a light receiving element. Each of the light emitting element and the light receiving element includes a first electrode, a hole transport region disposed on the first electrode, an electron transport region disposed on the hole transport region, and a second electrode disposed on the electron transport region. The light emitting element includes a light emitting layer disposed between the hole transport region and the electron transport region. The light receiving element includes a light receiving layer disposed between the hole transport region and the electron transport region and an electron extraction layer, including an n-dopant material, disposed between the light receiving layer and the electron transport region. The light receiving element converts a light incident thereto into an electrical signal.

公开(公告)号：US20240107783A1

公开(公告)日：2024-03-28

申请号：US18361400

申请日：2023-07-28

Applicant: Samsung Display Co., Ltd.

Inventor： KUNWOOK CHO ,  SOUNG WOOK KIM ,  MINSOO CHOI ,  SEOKGYU YOON ,  JIN-SOO JUNG ,  HYEJIN JUNG

IPC: H10K30/20 ,  H10K39/34 ,  H10K59/122

CPC classification number: H10K30/20 ,  H10K39/34 ,  H10K59/122 ,  H10K85/6572

Abstract: An electronic device may include: a base layer; and a display element layer including a pixel defining film having an opening defined therein, and a light emitting element and a light receiving element which are divided by the pixel defining film, wherein the light emitting element and the light receiving element each include: a first electrode, a hole transport region on the first electrode, an electron transport region including a hole blocking layer, and a second electrode. The light emitting element includes an emission layer between the hole transport region and the electron transport region, and the light receiving element includes a light receiving layer between the hole transport region and the electron transport region, and an electron extraction layer between the light receiving layer and the electron transport region and including an n-dopant material.

公开(公告)号：US20230157125A1

公开(公告)日：2023-05-18

申请号：US17885856

申请日：2022-08-11

Applicant: Samsung Display Co., Ltd.

Inventor： DONGKYU SEO ,  JUNYONG SHIN ,  SEOKGYU YOON ,  DAEHO LEE ,  BYUNGSEOK LEE ,  JIN-SOO JUNG ,  MINSOO CHOI

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

CPC classification number: H01L27/3227 ,  H01L51/5072 ,  H01L27/3246 ,  H01L51/5056 ,  H01L51/5275 ,  H01L51/5036

Abstract: A light receiving element includes a first electrode, a hole transport region disposed on the first electrode, a light receiving layer disposed on the hole transport region and converting incident light to an electrical signal, an electron transport region disposed on the light receiving layer, and a second electrode disposed on the electron transport region. The light receiving layer includes a p-dopant compound, a donor compound, and an acceptor compound.