发明名称 |
Light Emitting Device and Electronic Device |
摘要 |
The invention provides a light emitting device which uses a color conversion layer, with high light emission efficiency and a low driving voltage. The light emitting device includes a light emitting element having a pair of electrodes and a layer containing an organic compound sandwiched between the pair of electrodes, and a color conversion layer which absorbs light emitted from the light emitting element and emits light with a longer wavelength than a wavelength of the absorbed light. A portion of the layer containing an organic compound includes a buffer layer containing a composite material including an organic compound having a hole transporting property and a metal compound. The thickness of the buffer layer is determined so that the light emission efficiency becomes high.
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申请公布号 |
US2013009185(A1) |
申请公布日期 |
2013.01.10 |
申请号 |
US201213608124 |
申请日期 |
2012.09.10 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD.;YAMAZAKI SHUNPEI;MATSUBARA TOMOE |
发明人 |
YAMAZAKI SHUNPEI;MATSUBARA TOMOE |
分类号 |
H01L33/50;H01L33/58 |
主分类号 |
H01L33/50 |
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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