| 发明名称 |
BURIED GRID FOR OUTCOUPLING WAVEGUIDED LIGHT IN OLEDs |
| 摘要 |
Light-emitting devices are provided that include a mixed-index layer having a buried grid disposed below a bottom electrode of the device. The grid provides improved outcoupling into glass and air modes relative to techniques that omit such a grid and/or that use a conventional low-index grid embedded in the emissive layers of the device. |
| 申请公布号 |
US2015144928(A1) |
申请公布日期 |
2015.05.28 |
| 申请号 |
US201414555031 |
申请日期 |
2014.11.26 |
| 申请人 |
The Regents of the University of Michigan |
发明人 |
FORREST Stephen R.;SLOOTSKY Michael;QU Yue |
| 分类号 |
H01L51/52;H01L27/32;H01L51/56 |
主分类号 |
H01L51/52 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A device comprising:
a substrate; a mixed-index layer disposed above the substrate, the mixed-index layer comprising:
a first material having a first refractive index; anda second material having a second refractive index different from the first refractive index, the first and second materials being disposed in a periodic pattern; a first electrode disposed above the mixed-index layer; an organic emissive layer disposed above the first electrode; and a second electrode disposed above the organic emissive layer. |
| 地址 |
Ann Arbor MI US |
