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    ORGANIC LIGHT EMITTING DISPLAY DEVICE
    1.
    发明申请
    ORGANIC LIGHT EMITTING DISPLAY DEVICE 有权
    有机发光显示装置

    公开(公告)号：US20140070196A1

    公开(公告)日：2014-03-13

    申请号：US14023670

    申请日：2013-09-11

    Applicant: LG Display Co., Ltd.

    Inventor： Shin-Han Kim ,  Hwa-Kyung Kim ,  Hong-Seok Choi ,  Gwi-Jeong Cho ,  Youn-Seok Kam ,  Mi-Young Han ,  Hye-Min Oh ,  Tae-Shick Kim ,  Seong-Su Jeon ,  Chi-Yul Song

    IPC: H01L51/50

    CPC classification number: H01L51/5024 ,  H01L51/504 ,  H01L2251/5384

    Abstract: Disclosed is an organic light emitting display device with an enhanced light emission efficiency at high current and an enhancement in panel efficiency through prevention of a roll-off phenomenon. The organic light emitting display device includes first and second electrodes formed on a substrate facing each other. A hole injection layer, a hole transport layer, at least first and second light emitting layers, and an electron transport layer are sequentially stacked between the first and second electrodes. The first light emitting layer includes different hosts while being doped with the same dopant in different dosages. The first light emitting layer includes a first host and a second host, and the second light emitting layer includes the first host and a third host different from the second host. The first and second light emitting layers are doped with the same phosphorescent yellow-phosphorescent green dopant in the same dosage.

    Abstract translation: 公开了一种在高电流下具有增强的发光效率并通过防止滚降现象提高面板效率的有机发光显示装置。 有机发光显示装置包括形成在彼此面对的基板上的第一和第二电极。 空穴注入层，空穴传输层，至少第一和第二发光层以及电子传输层依次层叠在第一和第二电极之间。 第一发光层包括不同的主体，同时以不同的剂量掺杂相同的掺杂剂。 第一发光层包括第一主体和第二主体，第二发光层包括第一主机和与第二主机不同的第三主机。 第一和第二发光层以相同的剂量掺杂相同的磷光黄磷光绿色掺杂剂。

    Organic light emitting display device
    3.
    发明授权
    Organic light emitting display device 有权
    有机发光显示装置

    公开(公告)号：US09425422B2

    公开(公告)日：2016-08-23

    申请号：US14023670

    申请日：2013-09-11

    Applicant: LG Display Co., Ltd.

    Inventor： Shin-Han Kim ,  Hwa-Kyung Kim ,  Hong-Seok Choi ,  Gwi-Jeong Cho ,  Youn-Seok Kam ,  Mi-Young Han ,  Hye-Min Oh ,  Tae-Shick Kim ,  Seong-Su Jeon ,  Chi-Yul Song

    IPC: H01L29/08 ,  H01L51/50

    CPC classification number: H01L51/5024 ,  H01L51/504 ,  H01L2251/5384

    Abstract: Disclosed is an organic light emitting display device with an enhanced light emission efficiency at high current and an enhancement in panel efficiency through prevention of a roll-off phenomenon. The organic light emitting display device includes first and second electrodes formed on a substrate facing each other. A hole injection layer, a hole transport layer, at least first and second light emitting layers, and an electron transport layer are sequentially stacked between the first and second electrodes. The first light emitting layer includes different hosts while being doped with the same dopant in different dosages. The first light emitting layer includes a first host and a second host, and the second light emitting layer includes the first host and a third host different from the second host. The first and second light emitting layers are doped with the same phosphorescent yellow-phosphorescent green dopant in the same dosage.

    Abstract translation: 公开了一种在高电流下具有增强的发光效率并通过防止滚降现象提高面板效率的有机发光显示装置。 有机发光显示装置包括形成在彼此面对的基板上的第一和第二电极。 空穴注入层，空穴传输层，至少第一和第二发光层以及电子传输层依次层叠在第一和第二电极之间。 第一发光层包括不同的主体，同时以不同的剂量掺杂相同的掺杂剂。 第一发光层包括第一主体和第二主体，第二发光层包括第一主机和与第二主机不同的第三主机。 第一和第二发光层以相同的剂量掺杂相同的磷光黄磷光绿色掺杂剂。

    Organic light emitting diode display device
    4.
    发明授权
    Organic light emitting diode display device 有权

    公开(公告)号：US11257871B2

    公开(公告)日：2022-02-22

    申请号：US17025470

    申请日：2020-09-18

    Applicant: LG Display Co., Ltd

    Inventor： Kang-Ju Lee ,  Seung-Ryong Joung ,  Seong-Su Jeon ,  Tae-Shick Kim

    IPC: H01L51/50 ,  H01L27/32 ,  H01L51/52

    Abstract: An organic light emitting diode display device includes an overcoating layer on a substrate having an emitting area and a non-emitting area and including a plurality of convex portions and a plurality of concave portions; a first electrode on the overcoating layer; a light emitting layer on the first electrode; and a second electrode on the light emitting layer, wherein the light emitting layer includes first, second and third emitting material layers sequentially under the second electrode, and wherein the first emitting material layer emits a first light of a first wavelength, the second emitting material layer emits the first light of the first wavelength, and the third emitting material layer emits a second light of a second wavelength different from the first wavelength.

    Organic light emitting diode display device
    7.
    发明授权
    Organic light emitting diode display device 有权

    公开(公告)号：US10811469B2

    公开(公告)日：2020-10-20

    申请号：US16539694

    申请日：2019-08-13

    Applicant: LG Display Co., Ltd

    Inventor： Kang-Ju Lee ,  Seung-Ryong Joung ,  Seong-Su Jeon ,  Tae-Shick Kim

    IPC: H01L51/50 ,  H01L27/32 ,  H01L51/52

    Abstract: An organic light emitting diode display device includes: an overcoating layer on a substrate having an emitting area and a non-emitting area and including a plurality of convex portions and a plurality of concave portions; a first electrode on the overcoating layer; a light emitting layer on the first electrode and including a first emitting material layer; and a second electrode on the light emitting layer, wherein the light emitting layer includes first, second and third emitting material layers sequentially under the second electrode, and wherein the first emitting material layer emits a first light of a first wavelength, the second emitting material layer emits the first light of the first wavelength, and the third emitting material layer emits a second light of a second wavelength different from the first wavelength.

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