发明名称 |
HYBRID WHITE ORGANIC LIGHT EMITTTNG DEVICE AND METHOD OF MANUFACTURING THE SAME |
摘要 |
Provided are a hybrid white organic light emitting diode (OLED) and a method of fabricating the same. A HOMO level difference between a fluorescent emission layer and an electron transport layer in an organic emission layer (OLED) becomes higher than that between the other layers or a LUMO level difference between a fluorescent emission layer and a hole transport layer is higher than that between the other layers, so that a recombination region is restricted to a part of an emission layer to obtain high-efficiency fluorescent light emission. In addition, triplet excitons that are not used in a fluorescent emission layer are transferred to an auxiliary emission layer formed to be spaced apart from a recombination region by a predetermined distance to emit light in a different color from the fluorescent emission layer, so that both singlet and triplet excitons formed in the OLED are used to obtain high-efficiency white light emission.
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申请公布号 |
US2010187552(A1) |
申请公布日期 |
2010.07.29 |
申请号 |
US20080664040 |
申请日期 |
2008.08.21 |
申请人 |
ELECTRONIC AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
LEE JEONG IK;CHU HYE YONG;CHUNG SUNG MOOK;DO LEE MI;PARK SANG HEE;HWANG CHI SUN |
分类号 |
H01L51/52;H01L51/56 |
主分类号 |
H01L51/52 |
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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