| 摘要 |
<P>PROBLEM TO BE SOLVED: To aim at reduction of pattern-forming defects of an organic EL element part and restraint of degradation of a light volume, in an illuminating device made by arraying a plurality of organic EL elements in parallel. <P>SOLUTION: The organic EL illuminating device is provided with a transparent substrate 1, transparent electrode layers 2 formed on the transparent substrate 1, organic material layers 3 each formed on the transparent electrode 2, and cathode layers 4 each formed on the organic material layer 3. Striped grooves 8 are formed on a face of the transparent substrate 1 at a side where the transparent electrode layers 2 are formed. Each transparent electrode layer 2 is arranged inside the groove 8, and the organic material layer 3 is formed on the transparent substrate 1 as it is laminated on the transparent electrode layer 2 in the groove 8, in a single pattern as seen from a side where each groove 8 is formed. <P>COPYRIGHT: (C)2009,JPO&INPIT |
