LIGHT EMISSIVE DEVICE
    4.
    发明授权
    LIGHT EMISSIVE DEVICE 有权
    发光器件

    公开(公告)号:EP1829129B1

    公开(公告)日:2012-04-25

    申请号:EP05804994.1

    申请日:2005-12-23

    IPC分类号: H01L51/00

    摘要: An organic light emissive device, which comprises: an anode; a cathode; and an organic light emissive region between the anode and the cathode, which region comprises: a layer of blue light electroluminescent organic material which emits light having first CIE co-ordinates by exciton radiative decay; and a layer of longer wavelength electroluminescent organic material which intrinsically emits light having second CIE co-ordinates by exciton radiative decay; wherein the layers of blue light and longer wavelength materials are selected so that the organic light emissive region emits white light falling within a region having a CIE x coordinate equivalent to that emitted by a black body at 3000-9000K and CIE y coordinate within 0.05 of the CIE y co-ordinate of said light emitted by a black body.

    LIGHT EMISSIVE DEVICE
    5.
    发明公开
    LIGHT EMISSIVE DEVICE 有权
    发光器件

    公开(公告)号:EP1829129A1

    公开(公告)日:2007-09-05

    申请号:EP05804994.1

    申请日:2005-12-23

    IPC分类号: H01L51/00

    摘要: An organic light emissive device, which comprises: an anode; a cathode; and an organic light emissive region between the anode and the cathode, which region comprises: a layer of blue light electroluminescent organic material which emits light having first CIE co-ordinates by exciton radiative decay; and a layer of longer wavelength electroluminescent organic material which intrinsically emits light having second CIE co-ordinates by exciton radiative decay; wherein the layers of blue light and longer wavelength materials are selected so that the organic light emissive region emits white light falling within a region having a CIE x coordinate equivalent to that emitted by a black body at 3000-9000K and CIE y coordinate within 0.05 of the CIE y co-ordinate of said light emitted by a black body.

    PULSED DRIVEN LIGHT EMISSIVE DEVICE AND COMPOSITION THEREFOR
    6.
    发明公开
    PULSED DRIVEN LIGHT EMISSIVE DEVICE AND COMPOSITION THEREFOR 审中-公开
    脉冲控制的发光元件及组成THEREFOR

    公开(公告)号:EP2245109A1

    公开(公告)日:2010-11-03

    申请号:EP09704090.1

    申请日:2009-01-22

    发明人: WILSON, Richard

    IPC分类号: C09K11/06 H05B33/14

    摘要: A pulsed-driven device, such as a display, comprises an organic light-emitting composition comprising a host material and a blended or bound phosphorescent emitter. The phosphorescent emitter is present in the host material at a concentration of greater than 10wt.%, and the host material has a higher triplet energy level than the phosphorescent emitter. The concentration at which the phosphorescent emitter is at peak efficiency in the host material is greater than 10wt.%, and the composition does not include a fluorescent emitter, so that emission from the composition in use is substantially all phosphorescence.