发明名称 |
ORGANIC ELECTROLUMINESCENT DEVICE, LIQUID CRYSTAL DISPLAY AND ILLUMINATING DEVICE |
摘要 |
<p>Disclosed is an organic electroluminescent device having excellent power efficiency wherein white balance can be easily controlled. Also disclosed are a liquid crystal display and an illuminating device respectively using such an organic electroluminescent device. Specifically disclosed is an organic electroluminescent device having three or more light-emitting layers of different emission wavelengths, while containing a phosphorescent dopant having an emission maximum wavelength of 440-490 nm in a solid state in at least one of the light-emitting layers. This organic electroluminescent device is characterized in that the ionization potential energy of the phosphorescent dopant is lower than 5.1 eV and than the ionization potential energy of at least one other light-emitting dopant.</p> |
申请公布号 |
WO2007043321(A1) |
申请公布日期 |
2007.04.19 |
申请号 |
WO2006JP318905 |
申请日期 |
2006.09.25 |
申请人 |
KONICA MINOLTA HOLDINGS, INC.;NAKAYAMA, TOMOYUKI;KATOH, EISAKU |
发明人 |
NAKAYAMA, TOMOYUKI;KATOH, EISAKU |
分类号 |
H01L51/50;C09K11/06;G02F1/13357 |
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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