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110 条记录 (耗时 0.026 秒)

    Non-blocked phosphorescent OLEDs
    11.
    发明授权
    Non-blocked phosphorescent OLEDs 有权

    公开(公告)号：US10916721B2

    公开(公告)日：2021-02-09

    申请号：US16781173

    申请日：2020-02-04

    申请人： Universal Display Corporation

    发明人： Vadim Adamovich ,  Michael Stuart Weaver ,  Raymond Kwong

    IPC分类号： H01L51/50 ,  H01L51/00

    摘要： An organic light emitting diode (OLED) architecture in which efficient operation is achieved without requiring a blocking layer by locating the recombination zone close to the hole transport side of the emissive layer. Aryl-based hosts and Ir-based dopants with suitable concentrations result in an efficient phosphorescent OLED structure. Previously, blocking layer utilization in phosphorescent OLED architectures was considered essential to avoid exciton and hole leakage from the emissive layer, and thus keep the recombination zone inside the emissive layer to provide high device efficiency and a pure emission spectrum.

    Organic electroluminescent materials and devices
    12.
    发明授权
    Organic electroluminescent materials and devices 有权

    公开(公告)号：US10749113B2

    公开(公告)日：2020-08-18

    申请号：US14863768

    申请日：2015-09-24

    申请人： Universal Display Corporation

    发明人： Vadim Adamovich ,  Lichang Zeng ,  Ting-Chih Wang ,  Chuanjun Xia ,  Michael S. Weaver

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

    摘要： A mixture containing three different compounds that is useful as a stable co-evaporation source material for a vacuum deposition tool is disclosed. The mixture comprises a first compound; a second compound; and a third compound that are all organic compounds and have different chemical structures from each other and each has an evaporation temperature T1, T2, and T3, respectively, in the range of 150 to 350° C. T1, T2, and T3 differ from each other by less than 20° C. The first compound has a concentration C1 in the first mixture and a concentration C2 in a film deposited by evaporating the first mixture in a high vacuum deposition tool under a predefined deposition condition where |(C1−C2)/C1| is less than 5%.

    Non-blocked phosphorescent OLEDs
    14.
    发明授权
    Non-blocked phosphorescent OLEDs 有权

    公开(公告)号：US10593900B2

    公开(公告)日：2020-03-17

    申请号：US14174456

    申请日：2014-02-06

    申请人： Universal Display Corporation

    发明人： Vadim Adamovich ,  Michael Stuart Weaver ,  Raymond Kwong

    IPC分类号： H01L51/50 ,  H01L51/00

    摘要： An organic light emitting diode (OLED) architecture in which efficient operation is achieved without requiring a blocking layer by locating the recombination zone close to the hole transport side of the emissive layer. Aryl-based hosts and Ir-based dopants with suitable concentrations result in an efficient phosphorescent OLED structure. Previously, blocking layer utilization in phosphorescent OLED architectures was considered essential to avoid exciton and hole leakage from the emissive layer, and thus keep the recombination zone inside the emissive layer to provide high device efficiency and a pure emission spectrum.

    Organic electroluminescent materials and devices
    17.
    发明授权
    Organic electroluminescent materials and devices 有权

    公开(公告)号：US10208026B2

    公开(公告)日：2019-02-19

    申请号：US14624097

    申请日：2015-02-17

    申请人： Universal Display Corporation

    发明人： Alexey Borisovich Dyatkin ,  Lichang Zeng ,  Suman Layek ,  Scott Joseph ,  Chuanjun Xia ,  Vadim Adamovich

    IPC分类号： C07D409/10 ,  C07D209/86 ,  H01L51/00 ,  H01L51/50

    摘要： A compound having the structure of Formula I, A-L-B-M-D, is disclosed. In the structure of Formula I:A is selected from L is a linker selected from a single bond, an aryl group, a heteroaryl group, and combinations thereof, and may be further substituted;L-B-M has the structure: M is selected from an aryl group, a heteroaryl group, and combinations thereof, and may be further substituted;D has the structure: X is O, S, Se, or CR′R″; X1-X8, Y1-Y12, Z1, Z3-Z8, and Z11-Z18 are each independently N or CR; each R, R′, and R″ are selected from a wide variety of substituents; where adjacent R substituents can form a fused ring; and R′ and R″ can form a ring. Formulations and devices, such as an OLEDs, that include the compound of Formula I are also described.