| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a surface emitting light source with improvement of brightness aimed at through enhancement of light extraction efficiency. <P>SOLUTION: The surface emitting light source 10 has a light-emitting element 11 made of a laminated body of a transparent electrode 13, a light-emitting layer 14 including an organic EL layer formed on the surface 12a of a transparent substrate 12, and the light-emitting element 11 has a prism-structure face 11A of a polyhedral structure on the surface of the transparent substrate 12. With this, the light-emitting layer 14 is given a bent part, so as to enable to effectively take out total reflection light inside the light-emitting layer 14 from the bent part. Further, by making the light-emitting element 11 in a polyhedral structure, substantial improvement in brightness due to increase in a light-emitting area is aimed at. <P>COPYRIGHT: (C)2007,JPO&INPIT |
