ORGANIC LIGHT-EMITTING DEVICE
    59.
    发明申请

    公开(公告)号:US20220077399A1

    公开(公告)日:2022-03-10

    申请号:US17530403

    申请日:2021-11-18

    Abstract: An organic light-emitting device having low-driving voltage, improved efficiency, and long lifespan includes: a first electrode; a second electrode facing the first electrode; a first layer between the first electrode and the second electrode, the first layer including a first compound; a second layer between the first layer and the second electrode, the second layer including a second compound; and a third layer between the second layer and the second electrode, the third layer including a third compound; wherein the first compound does not include a nitrogen-containing heterocyclic group comprising *═N—*′ as a ring forming moiety, and wherein the first compound, the second compound, and the third compound each independently include at least one group selected from groups represented by Formulae A to C:

    Organic light-emitting device
    60.
    发明授权

    公开(公告)号:US11165024B2

    公开(公告)日:2021-11-02

    申请号:US15380692

    申请日:2016-12-15

    Abstract: An organic light-emitting device including a first electrode, a second electrode facing the first electrode, an emission layer between the first electrode and the second electrode, a hole transport region between the first electrode and the emission layer, and an electron transport region between the emission layer and the second electrode; wherein the electron transport region comprises at least one first compound, the emission layer comprises at least one second compound, the first compound is represented by Formula 1, and the second compound is represented by one selected from Formulae 2-1, 2-2, and 2-3:

Patent Agency Ranking