Organic light emitting diode and organic light emitting display device including the same

    公开(公告)号:US11430965B2

    公开(公告)日:2022-08-30

    申请号:US16701611

    申请日:2019-12-03

    IPC分类号: H01L51/50 H01L51/00 H01L27/32

    摘要: An organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and an organic emitting layer between the first and second electrodes. The organic emitting layer includes a first emitting part between the first and second electrodes, a second emitting part between the first emitting part and the second electrode, and a charge generation layer between the first emitting part and the second emitting part. The charge generation layer includes an n-type charge generation layer between the first emitting part and the second emitting part, and a p-type charge generation layer between the n-type charge generation layer and the second emitting part. The p-type charge generation layer has a multi-layered structure, where an organic charge generation material layer and an inorganic charge generation material layer are alternately stacked.

    Organic light emitting diode and organic light emitting display device including the same

    公开(公告)号:US10566561B2

    公开(公告)日:2020-02-18

    申请号:US15718204

    申请日:2017-09-28

    IPC分类号: H01L51/50 H01L51/00

    摘要: An organic light emitting diode includes an emitting material layer including first and second layers; a first electrode on a side of the emitting material layer; and a second electrode on the other side of the light emitting material layer and facing the first electrode, wherein the first layer includes a first compound, and the second layer includes a second compound, wherein the first compound has a difference, between a singlet energy and a triplet energy, less than 0.3 eV, and wherein the singlet energy of the first compound is greater than a singlet energy of the second compound.