发明名称 |
Light-emitting device and display device employing electroluminescence with no light leakage and improved light extraction efficiency |
摘要 |
In a light-emitting device comprising an organic electroluminescent device including one or more organic thin layers (at least including a light-emitting layer) which are sandwiched between a transparent first electrode formed on a light-transmitting substrate and a second electrode, the light-transmitting substrate is formed so as to include parts for reflecting light emitted by the organic electroluminescent device (corresponding to a pixel) and thereby preventing the light from entering adjacent pixel areas. The light-transmitting substrate is formed of material having a refractive index of 1.65 or more or a refractive index higher than that of the light-emitting layer. A surface of the light-transmitting substrate opposite to the first electrode is provided with a light-diffusing function for avoiding total reflection. By such composition, a light-emitting device with no light leakage and excellent light extraction efficiency can be realized and thereby a high-intensity low-voltage-driven display device can be realized.
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申请公布号 |
US2003043571(A1) |
申请公布日期 |
2003.03.06 |
申请号 |
US20020202214 |
申请日期 |
2002.07.24 |
申请人 |
NEC CORPORATION |
发明人 |
TOGUCHI SATORU;ODA ATSUSHI;ISHIKAWA HITOSHI |
分类号 |
H05B33/02;G09F9/00;G09F9/30;G09G3/32;H01L27/32;H01L51/50;H01L51/52;H05B33/04;H05B33/22;H05B33/26;(IPC1-7):F21V9/16 |
主分类号 |
H05B33/02 |
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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