| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface light emitter in which total reflection of light at the interface of a transparent electrode layer and a buffer layer is suppressed and extraction efficiency of light can be improved. SOLUTION: The surface light emitter is provided with a light scattering portion 2 formed on the surface of a translucent substrate 1, a buffer layer 3 which is formed on the surface of the light scattering portion 2 and smoothes the surface roughness of the light scattering portion 2, a transparent electrode layer 4 formed on the surface of the buffer layer 3, and a light-emitting layer 5 which is formed on the opposite side to the translucent substrate of the transparent electrode layer 4. A light scattering structure which scatters light is formed at least at the interface of the buffer layer 3 and the transparent electrode layer 4 or at its surroundings, and suppresses total reflection of light by scattering light at the interface of the transparent electrode layer 4 and the buffer layer 3. COPYRIGHT: (C)2009,JPO&INPIT
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