| 摘要 |
<p>PURPOSE:To enhance the uniformity of a light emitting surface by laminating a clear electroconductive thin film on the surface of a glass, and using an anode which is a clear electrode whose surface has been subjected to a processing with a specific aqueous solution. CONSTITUTION:A light emitting layer consisting of an organic compound is furnished between an anode and cathode, at least either thereof being clear, and thereby an EL element is formed. A clear electroconductive thin film is laminated on the surface of a glass, and the surface is subjected to a processing to form a clear electrode which is used as the anode. The processing is made with an aqueous solution containing ammonia and hydrogen peroxide, whereto an ultrasonic treatment is added. Thereby the organic contaminant on the surface is oxidated and removed, and minute contaminant particles attached to the surface are removed effectively. This improves the wettability and decreases generation of minute dark spots to allow generating an organic EL element excellent in the uniformity of the light emitting surface.</p> |
