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US09190626B2 Organic light emitting diode having low driving voltage, high brightness, and excellent light emitting efficiencies 有权
有机发光二极管具有低驱动电压，高亮度和优异的发光效率

Organic light emitting diode having low driving voltage, high brightness, and excellent light emitting efficiencies
Abstract:
An organic electroluminescent device includes an anode, a cathode, a light emitting layer provided between the anode and the cathode, a first organic material layer being in physical contact with the anode and doped with a p-type dopant, and a second organic material layer being in physical contact with the cathode and doped with a p-type dopant. The concentration of the p-type dopant in the first organic material layer is 50% by weight or more and less than 100% by weight.
Abstract(Chinese):

有机电致发光器件包括阳极，阴极，设置在阳极和阴极之间的发光层，与阳极物理接触并掺杂有p型掺杂剂的第一有机材料层和第二有机材料层 与阴极物理接触并掺杂有p型掺杂剂。 第一有机材料层中p型掺杂剂的浓度为50重量％以上且小于100重量％。

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