公开(公告)号：US12250876B2

公开(公告)日：2025-03-11

申请号：US17160205

申请日：2021-01-27

Applicant: Samsung Display Co., Ltd.

Inventor： Seokgyu Yoon ,  Eungdo Kim ,  Hyosup Shin ,  Jaejin Lyu ,  Jaeyong Lee ,  Hyeongu Cho

IPC: H10K85/60 ,  H10K50/11 ,  H10K50/15 ,  H10K50/165 ,  H10K85/30 ,  H10K101/40

Abstract: A light-emitting device includes: a first electrode; a hole injection layer; a hole transport layer; an emission layer; an electron transport region; and a second electrode, stacked in order, wherein the hole transport layer and the hole injection layer are different from each other, the hole injection layer includes a first inorganic material, the first inorganic material is an oxide of at least one metal selected from tungsten (W), molybdenum (Mo), zinc (Zn), copper (Cu), nickel (Ni), cobalt (Co), gallium (Ga), and germanium (Ge), the first inorganic material has a work function with an absolute value of about 4.3 eV to about 5.3 eV, and the hole injection layer and the hole transport layer satisfy Equations 1 and 2: |ELUMO_HIL|>|ELUMO_HTL|+0.1 eV  Equation 1 |EHOMO_HIL|>|EHOMO_HTL|+0.1 eV.  Equation 2

公开(公告)号：US12167687B2

公开(公告)日：2024-12-10

申请号：US16391985

申请日：2019-04-23

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun Kim ,  Dukki Kim ,  Seunguk Noh ,  Dongwoo Shin ,  Jaekook Ha ,  Eungdo Kim ,  Eunju Nam ,  Hyunwoo Lee ,  Jaesung Lim

IPC: H01L51/54 ,  H10K71/40 ,  H10K85/10 ,  H10K85/60 ,  H10K50/15

Abstract: An organic light-emitting device includes a first hole transport region including a polymer compound that includes a repeating unit derived from a compound including a moiety represented by Formula 1A and a second hole transport region including a first compound and a second compound, the first compound including a repeating unit represented by Formula 1, the second compound being a compound represented by Formula 1, and the third compound being a compound represented by Formula 3.

公开(公告)号：US12133402B2

公开(公告)日：2024-10-29

申请号：US18340664

申请日：2023-06-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongkyu Seo ,  Dongchan Kim ,  Wonjong Kim ,  Eungdo Kim ,  Jihye Lee ,  Dahea Im ,  Sanghoon Yim ,  Yoonhyeung Cho ,  Wonsuk Han

IPC: H10K50/13 ,  H10K50/11 ,  H10K50/15 ,  H10K50/17 ,  H10K50/18 ,  H10K71/00 ,  H10K85/30 ,  H10K85/60 ,  H10K101/10 ,  H10K102/00

CPC classification number: H10K50/131 ,  H10K50/11 ,  H10K50/15 ,  H10K50/17 ,  H10K50/18 ,  H10K71/00 ,  H10K85/30 ,  H10K85/324 ,  H10K85/341 ,  H10K85/342 ,  H10K85/346 ,  H10K85/348 ,  H10K85/381 ,  H10K85/60 ,  H10K85/615 ,  H10K85/622 ,  H10K85/623 ,  H10K85/624 ,  H10K85/626 ,  H10K85/631 ,  H10K85/633 ,  H10K85/636 ,  H10K85/653 ,  H10K85/654 ,  H10K85/657 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K2101/10 ,  H10K2102/00

Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; a first emission unit and a second emission unit between the first electrode and the second electrode; and a first charge generation layer between the first emission unit and the second emission unit; wherein the first emission unit includes a first emission layer and a first inorganic buffer layer, and the second emission unit includes a second emission layer and a second inorganic buffer layer.

公开(公告)号：US20230345754A1

公开(公告)日：2023-10-26

申请号：US18340664

申请日：2023-06-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongkyu Seo ,  Dongchan Kim ,  Wonjong Kim ,  Eungdo Kim ,  Jihye Lee ,  Dahea Im ,  Sanghoon Yim ,  Yoonhyeung Cho ,  Wonsuk Han

IPC: H10K50/13

CPC classification number: H10K50/131 ,  H10K50/11

Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; a first emission unit and a second emission unit between the first electrode and the second electrode; and a first charge generation layer between the first emission unit and the second emission unit; wherein the first emission unit includes a first emission layer and a first inorganic buffer layer, and the second emission unit includes a second emission layer and a second inorganic buffer layer.

公开(公告)号：US11737299B2

公开(公告)日：2023-08-22

申请号：US17649548

申请日：2022-01-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongkyu Seo ,  Dongchan Kim ,  Wonjong Kim ,  Eungdo Kim ,  Jihye Lee ,  Dahea Im ,  Sanghoon Yim ,  Yoonhyeung Cho ,  Wonsuk Han

IPC: H01L51/00 ,  H01L51/50 ,  H01L51/56 ,  H10K50/13 ,  H10K50/11 ,  H10K50/15 ,  H10K50/17 ,  H10K50/18 ,  H10K71/00 ,  H10K85/30 ,  H10K85/60 ,  H10K101/10 ,  H10K102/00

CPC classification number: H10K50/131 ,  H10K50/11 ,  H10K50/15 ,  H10K50/17 ,  H10K50/18 ,  H10K71/00 ,  H10K85/30 ,  H10K85/324 ,  H10K85/341 ,  H10K85/342 ,  H10K85/346 ,  H10K85/348 ,  H10K85/381 ,  H10K85/60 ,  H10K85/615 ,  H10K85/622 ,  H10K85/623 ,  H10K85/624 ,  H10K85/626 ,  H10K85/631 ,  H10K85/633 ,  H10K85/636 ,  H10K85/653 ,  H10K85/654 ,  H10K85/657 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K2101/10 ,  H10K2102/00

Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; a first emission unit and a second emission unit between the first electrode and the second electrode; and a first charge generation layer between the first emission unit and the second emission unit; wherein the first emission unit includes a first emission layer and a first inorganic buffer layer, and the second emission unit includes a second emission layer and a second inorganic buffer layer.

公开(公告)号：US11527725B2

公开(公告)日：2022-12-13

申请号：US16859894

申请日：2020-04-27

Applicant: Samsung Display Co., Ltd.

Inventor： Hyojeong Kim ,  Minje Kim ,  Eungdo Kim ,  Hyunyoung Kim ,  Hyosup Shin ,  Seokgyu Yoon ,  Youngki Lee ,  Jungsub Lee ,  Jiyoung Lee ,  Hyejin Jung ,  Kunwook Cho ,  Hyeongu Cho ,  Minsoo Choi ,  Youngeun Choi ,  Jaejin Lyu

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

Abstract: An organic light-emitting device having improved efficiency and lifespan includes: a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer, the emission layer includes a first compound, a second compound, a third compound, and a fourth compound, the first compound, the second compound, the third compound, and the fourth compound are different from each other, the third compound includes a metal element having an atomic number of 40 or more, the fourth compound includes boron (B), the third compound and the fourth compound each satisfy Conditions 1-1 and 1-2 below, and the fourth compound satisfies Condition 2 or 3: T1(C3)onset≥S1(C4)onset  Condition 1-1 T1(C3)max≥S1(C4)max  Condition 1-2 KRISC(C4)≥103S−1  Condition 2 f(C4)≥0.1.  Condition 3

公开(公告)号：US11453628B2

公开(公告)日：2022-09-27

申请号：US16518917

申请日：2019-07-22

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun Kim ,  Eungdo Kim ,  Eunju Nam ,  Seunguk Noh ,  Jongwon Park ,  Hyunwoo Lee ,  Jaekook Ha

IPC: C07C13/58 ,  H01L51/00 ,  C07D209/94 ,  C07D307/91 ,  C07D333/76 ,  C07C43/263 ,  C07D403/04 ,  C07D471/04 ,  C07D491/048 ,  C07D495/04 ,  C07D403/14 ,  H01L51/50 ,  C07C13/66

Abstract: Provided are a condensed cyclic compound, a composition including the same, and an organic light-emitting device including a thin film formed from the composition. The condensed cyclic compound is represented by following Formula, has a molecular weight of about 400 to about 10,000, and comprises at least one cross-linkable group:

公开(公告)号：US20200181045A1

公开(公告)日：2020-06-11

申请号：US16518917

申请日：2019-07-22

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun Kim ,  Eungdo Kim ,  Eunju Nam ,  Seunguk Noh ,  Jongwon Park ,  Hyunwoo Lee ,  Jaekook Ha

IPC: C07C13/58 ,  C07C13/66 ,  C07D209/94 ,  C07D307/91 ,  C07D333/76 ,  C07C43/263 ,  C07D403/04 ,  C07D471/04 ,  C07D491/048 ,  C07D495/04 ,  C07D403/14 ,  H01L51/50 ,  H01L51/00

Abstract: Provided are a condensed cyclic compound, a composition including the same, and an organic light-emitting device including a thin film formed from the composition. The condensed cyclic compound is represented by following Formula, has a molecular weight of about 400 to about 10,000, and comprises at least one cross-linkable group:

公开(公告)号：US10236455B2

公开(公告)日：2019-03-19

申请号：US15223514

申请日：2016-07-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Wonsuk Han ,  Dongchan Kim ,  Wonjong Kim ,  Eungdo Kim ,  Dongkyu Seo ,  Jihye Lee ,  Dahea Im ,  Sanghoon Yim ,  Yoonhyeung Cho

IPC: H01L51/50 ,  H01L51/00 ,  C09K11/02 ,  C09K11/06 ,  H05B33/14 ,  H05B33/20

Abstract: An organic light-emitting device is provided to have high efficiency and long lifespan. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer disposed between the first electrode and the second electrode and including a host and a dopant; an electron blocking layer disposed between the first electrode and the emission layer; and an electron transport region disposed between the emission layer and the second electrode, in which the electron blocking layer includes a metal halide, a metal oxide, or a combination thereof, and the actually measured lowest unoccupied molecular orbital (LUMO) value of the electron blocking layer is greater than the actually measured LUMO value of the host in the emission layer.

公开(公告)号：US09997733B2

公开(公告)日：2018-06-12

申请号：US15173336

申请日：2016-06-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongkyu Seo ,  Dongchan Kim ,  Wonjong Kim ,  Eungdo Kim ,  Jihye Lee ,  Dahea Im ,  Sanghoon Yim ,  Yoonhyeung Cho ,  Wonsuk Han

IPC: H01L51/50 ,  H01L51/00 ,  H01L51/56

CPC classification number: H01L51/5044 ,  H01L51/005 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0055 ,  H01L51/0056 ,  H01L51/0058 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0065 ,  H01L51/0067 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/0077 ,  H01L51/0081 ,  H01L51/0084 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/0088 ,  H01L51/0092 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/5088 ,  H01L51/5096 ,  H01L51/56 ,  H01L2251/301

Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; a first emission unit and a second emission unit between the first electrode and the second electrode; and a first charge generation layer between the first emission unit and the second emission unit; wherein the first emission unit includes a first emission layer and a first inorganic buffer layer, and the second emission unit includes a second emission layer and a second inorganic buffer layer.