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    Light-emitting device having low driving voltage, high luminescence efficiency, and long life span, and electronic apparatus including same
    3.
    发明授权
    Light-emitting device having low driving voltage, high luminescence efficiency, and long life span, and electronic apparatus including same 有权

    公开(公告)号：US12082434B2

    公开(公告)日：2024-09-03

    申请号：US17361873

    申请日：2021-06-29

    Applicant: Samsung Display Co., Ltd.

    Inventor： Soungwook Kim ,  Seokgyu Yoon ,  Kyungsik Kim ,  Eungdo Kim ,  Jaejin Lyu ,  Kunwook Cho ,  Hyeongu Cho

    IPC: H10K50/818

    CPC classification number: H10K50/818

    Abstract: A light-emitting device including: first and second electrodes facing each other; an emission layer located therebetween; and a charge transport region located between the emission layer and the first electrode. Light emitted from the emission layer passes to the outside through the second electrode, the first electrode is a reflective electrode, the first electrode includes a transparent layer and a reflective layer, a distance between i) an interface between the transparent layer of the first electrode and the charge transport region and ii) an interface between the emission layer and the charge transport region is a first resonance distance of light emitted from the emission layer, and a distance between a) an interface between the reflective layer of the first electrode and the transparent layer of the first electrode and b) an interface between the emission layer and the charge transport region is a second resonance distance of light emitted from the emission layer.

    LIGHT-EMITTING DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME
    5.
    发明申请
    LIGHT-EMITTING DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAME 有权

    公开(公告)号：US20220246877A1

    公开(公告)日：2022-08-04

    申请号：US17447526

    申请日：2021-09-13

    Applicant: Samsung Display Co., Ltd.

    Inventor： Seokgyu Yoon ,  Kyungsik Kim ,  Soungwook Kim ,  Jaeyong Lee ,  Kunwook Cho ,  Hyeongpil Kim ,  Jaejin Lyu

    IPC: H01L51/52 ,  H01L51/50

    Abstract: A light-emitting device includes: a first electrode; an interlayer including a hole transport layer, an emission layer; and an electron transport region; and a second electrode stacked in order, wherein the first electrode and the hole transport layer are in direct contact, the first electrode has a multi-layered structure in which a first layer to an mth layer (m is an integer 3) are sequentially stacked, the mth layer consists of a first inorganic material including: a single material selected from GeO2, MoO3, and WOx (2.1≤x≤2.99); a mixed material of two or more selected from In2O3, GeO2, SnO2, MoO3, and WOx; or any combination thereof, the absolute value of the work function of the first inorganic material is greater than or equal to the absolute value of the HOMO energy level of the hole transport layer, and the hole transport layer does not include a p-dopant.

    DISPLAY APPARATUS
    6.
    发明公开
    DISPLAY APPARATUS 审中-公开

    公开(公告)号：US20240324387A1

    公开(公告)日：2024-09-26

    申请号：US18603478

    申请日：2024-03-13

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Seokgyu Yoon ,  Soungwook Kim ,  Hwasook Ryu ,  Hyejin Jung ,  Kunwook Cho

    IPC: H10K59/38 ,  H10K59/40 ,  H10K102/10

    CPC classification number: H10K59/38 ,  H10K59/40 ,  H10K2102/101

    Abstract: A display apparatus includes a substrate including an emission area and a sensing area, a plurality of light-emitting devices disposed on the substrate and overlapping the emission area, and a plurality of light-receiving devices disposed on the substrate and overlapping the sensing area. Each of the plurality of light-emitting devices includes a pixel electrode, an emission layer disposed on the pixel electrode, and an opposite electrode disposed on the emission layer. Each of the plurality of light-receiving devices includes a sensing electrode, an active layer disposed on the sensing electrode, and an opposite electrode disposed on the active layer. At least one of the plurality of sensing electrodes has a structure that is different from a stacked structure of the pixel electrode, and the sensing electrode includes a transparent conductive layer.

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