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    Light-emitting device and display apparatus including the same
    1.
    发明授权
    Light-emitting device and display apparatus including the same 有权

    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

    DISPLAY PANEL AND DISPLAY APPARATUS
    3.
    发明公开
    DISPLAY PANEL AND DISPLAY APPARATUS 审中-公开

    公开(公告)号：US20240196648A1

    公开(公告)日：2024-06-13

    申请号：US18478724

    申请日：2023-09-29

    Applicant: Samsung Display Co., Ltd.

    Inventor： Dongsoo Kim ,  Joongsoo Moon ,  Hansol Kim ,  Jaeyong Lee ,  Sunbaek Hong

    IPC: H10K59/121 ,  H10K59/65

    CPC classification number: H10K59/121 ,  H10K59/65

    Abstract: A display panel includes: a substrate having a first area, a second area at least partially extending around a periphery of the first area, and a third area at least partially extending around a periphery of the second area; a first pixel portion in a portion of the first area that is adjacent to a boundary between the first area and the second area; and a second pixel portion nearer to a central portion of the first area than the first pixel portion is. A number of sub-pixels in the first pixel portion is less than a number of sub-pixels in the second pixel portion.

    Organic light-emitting device and display apparatus including the same
    5.
    发明授权
    Organic light-emitting device and display apparatus including the same 有权

    公开(公告)号：US11569454B2

    公开(公告)日：2023-01-31

    申请号：US16813539

    申请日：2020-03-09

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jaeyong Lee ,  Taekyung Kim ,  Minkyung Kim ,  Seulong Kim ,  Pilgu Kang ,  Jiyoung Kwon ,  Soonchul Chang ,  Jaehoon Hwang

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

    Abstract: Provided are an organic-light-emitting device and a display apparatus including the same. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including at least one light-emitting unit, wherein the at least one light-emitting unit includes: an emission layer; and a hole transport region between the first electrode and the emission layer and including a first hole transport (HT) layer, the emission layer includes a host, the first HT layer includes a first compound, a minimum bond dissociation energy (BDE1HT) of the first compound is larger than a triplet energy (T1,host) of the host, and a minimum bond dissociation energy (BDEhost) of the host is larger than the triplet energy (T1,host) of the host.

    LIGHT-EMITTING DEVICE AND AN ELECTRONIC APPARATUS INCLUDING THE SAME
    8.
    发明申请
    LIGHT-EMITTING DEVICE AND AN ELECTRONIC APPARATUS INCLUDING THE SAME 有权

    公开(公告)号：US20220131108A1

    公开(公告)日：2022-04-28

    申请号：US17508480

    申请日：2021-10-22

    Applicant: Samsung Display Co., Ltd

    Inventor： Myoungjin PARK ,  Changhee Lee ,  Jaehong Park ,  Jingoo Kang ,  Seokgyu Yoon ,  Jaeyong Lee

    IPC: H01L51/52 ,  H01L51/50

    Abstract: A light-emitting device includes: a first electrode; a second electrode; an interlayer between the first electrode and the second electrode and including an emission layer; a hole transport region between the first electrode and the emission layer; and an electron transport region between the second electrode and the emission layer, wherein the first electrode is a multi-layered electrode including: a first layer including a first material, a second layer disposed on the first layer and including a second material, and a third layer between the second layer and the hole transport region and including a third material, wherein a first surface of the third layer contacts the second layer, and a second surface of the third layer facing the first surface directly contacts the hole transport region, and the third material has a work function of greater than about 4.8 eV and less than or equal to about 6.8 eV.

    Display device having a bending area
    9.
    发明授权
    Display device having a bending area 有权

    公开(公告)号：US10818746B2

    公开(公告)日：2020-10-27

    申请号：US16573601

    申请日：2019-09-17

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Yangwan Kim ,  Sunja Kwon ,  Byungsun Kim ,  Hyunae Park ,  Sujin Lee ,  Jaeyong Lee

    IPC: H01L27/32 ,  G02F1/1345 ,  H01L51/00 ,  H01L51/52 ,  G02F1/1333 ,  H01L27/12

    Abstract: A display device includes a substrate including a bending area located between a first area and a second area. The substrate is bent in relation to a bending axis. A first wiring unit including a plurality of first wirings is arranged on the substrate to sequentially extend over the first area, the bending area, and the second area. First central axes included in each of the plurality of first wirings are spaced apart from each other by a first pitch in the bending area. A second wiring unit including a plurality of second wirings is arranged on the substrate to sequentially extend over the first area, the bending area, and the second area. Second central axes included in each of the plurality of second wirings are spaced apart from each other by a second pitch greater than the first pitch in the bending area.

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