发明申请
US20050104084A1 Organic electroluminescent device and organic electroluminescent display 有权
有机电致发光器件和有机电致发光显示器

Organic electroluminescent device and organic electroluminescent display
摘要:
In an organic EL device disclosed, there are stacked sequentially on a glass substrate an anode, a first carrier transportation layer, a second carrier transportation layer, a light emission layer, a third carrier transportation layer, a fourth carrier transportation layer, an electron transportation layer, and a cathode. The first carrier transportation layer is formed from a material having an ionization potential Ip lower than the ionization potential Ip of the second carrier transportation layer, and the third carrier transportation layer is formed from a material having an electron affinity Ea less than the electron affinity Ea of the fourth carrier transportation layer.
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