| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an organic LED element in which the emission of the organic luminous layer can be taken out with high efficiency. <P>SOLUTION: The organic LED element comprises a light-emitting part including at least an organic luminous layer and an incidence face and an outgoing radiation face of the light of the organic luminous layer, and the light-emitting part comprises a light-guide part arranged in contact with the incidence face and a reflecting part that reflects the light of the organic luminous layer entered in the light-guide part and radiates from the outgoing radiation face. The reflecting part comprises a cross section of saw-tooth form in which triangles are connected continuously in the outgoing direction of the light and is made of a concavo-convex part in which the one oblique line of each triangle is arranged so as to form a oblique face facing the outgoing radiation face. <P>COPYRIGHT: (C)2003,JPO</p> |
