发明名称 |
White light-emitting OLED device having a blue light-emitting layer doped with an electron-transporting or a hole-transporting material or both |
摘要 |
An organic light-emitting diode (OLED) device which produces substantially white light includes an anode; a hole-transporting layer disposed over the anode; and a blue light-emitting layer having a host doped with a blue light-emitting compound disposed directly on the hole-transporting layer and the blue light-emitting layer being doped with an electron-transporting or a hole-transporting material or both selected to improve efficiency and operational stability. The device also includes an electron-transporting layer disposed over the blue light-emitting layer; a cathode disposed over the electron-transporting layer; and the hole-transporting layer or electron-transporting layer, or both the hole-transporting layer and electron-transporting layer, being selectively doped with a compound which emits light in the yellow region of the spectrum which corresponds to an entire layer or a partial portion of a layer in contact with the blue light-emitting layer. |
申请公布号 |
US2004185300(A1) |
申请公布日期 |
2004.09.23 |
申请号 |
US20030606446 |
申请日期 |
2003.06.26 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
HATWAR TUKARAM K.;RICKS MICHELE L.;WINTERS DUSTIN;SPINDLER JEFFREY P. |
分类号 |
H01L51/50;C09K11/06;H01L27/00;H01L33/00;H01L51/00;H01L51/30;H05B33/00;H05B33/14;H05B33/22;(IPC1-7):H05B33/14 |
主分类号 |
H01L51/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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