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    • 28. 发明授权
    • Organic electroluminescent device
    • 有机电致发光器件
    • US06784602B2
    • 2004-08-31
    • US09983569
    • 2001-10-25
    • Peter G. HofstraAlexey Krasnov
    • Peter G. HofstraAlexey Krasnov
    • H05B3322
    • H01L51/5281H01L51/5203Y10S428/917
    • The present invention provides a novel organic electroluminescent device having an optical interference member which reduces the overall reflectance from the device. The invention is particularly suited to current-driven organic displays having an anode, an electroluminescent layer and a cathode, where at least one optical interference member is placed between two of the layers and thus forms part of the electrical circuit required to excite the display. The optical interference member is chosen to have a thickness which causes at least some destructive optical interference of ambient light incident on the display. In addition, the material(s) of the optical interference member are chosen to have a work function which is compatible with the highest occupied molecular orbital, or the lowest unoccupied molecular orbital of the electroluminescent layer, depending on the location of the optical interference member in relation to the anode, cathode and electroluminescent layer.
    • 本发明提供了一种具有光学干涉构件的新型有机电致发光器件,其降低了来自器件的总体反射率。 本发明特别适用于具有阳极,电致发光层和阴极的电流驱动的有机显示器,其中至少一个光学干涉构件位于两个层之间,从而形成激发显示器所需的电路的一部分。 光学干涉构件被选择为具有导致入射在显示器上的环境光的至少一些破坏性光学干涉的厚度。 此外,根据光学干涉构件的位置,光学干涉构件的材料被选择为具有与最高占据分子轨道或电致发光层的最低未占分子轨道相适应的功函数 相对于阳极,阴极和电致发光层。