| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a top-emission type electroluminescent element in which a total optical transparency of films of the upper part of a light-emitting layer including a transparent conductive film is made to be improved, and in which effective light-emitting intensity can be obtained by improving electron injection efficiency. <P>SOLUTION: This organic EL (electroluminescent) element is the top-emission type electroluminescent element, and has a substrate 1, an electrode 2 installed on a surface of the substrate 1, a positive hole injection layer 3 installed on a surface of the electrode 2, a light-emitting layer 4 installed on a surface of the positive hole injection layer 3, a reduction-reacting part 5 installed at the light emitting layer 4, and formed by reduction reaction of an alkaline metal or a metal compound of an alkaline earth metal and a reducer, and a transparent conductive film 8 installed on the reduction-reacting part 5. The reduction-reacting part 5 has a function to demonstrate improvement of the electron injection characteristic to the light emitting layer 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
