Method of manufacturing organic electroluminescence element
View Patent ↗A method of manufacturing an organic electroluminescence element having on a belt-formed flexible base material, a first electrode, at least one organic functional layer, and a second electrode, includes continuously forming at least one organic functional layer by coating the same on a first electrode which is formed continuously on the flexible base material in the conveying direction thereof, further forming a second electrode on the organic functional layer, so as to make a plurality of organic electroluminescence element structures in the conveying direction, and then cutting the electroluminescence element structures into individual organic electroluminescence elements so as to manufacture organic electroluminescence elements.
1. A method for producing an organic EL element which comprises a belt form flexible substrate having thereon a first electrode, at least one organic functional layer, and a second electrode, the method comprising performing, in sequential order, operations of:
continuously forming the at least one organic functional layer with a coating method on the first electrode which has been continuously provided on the belt form flexible substrate in a conveying direction of the belt form flexible substrate;
processing the first electrode with the at least one organic functional layer coated thereon so as to make the first electrode have a discontinuous portion;
forming the second electrode on the formed at least one organic functional layer to produce a structure having a plurality of organic EL elements arranged in the conveying direction of the belt form flexible substrate; and then
cutting the plurality of organic EL elements to separate the plurality of organic EL elements into individual organic EL elements.
2. The method for producing an organic EL element of claim 1 , wherein the discontinuous portion of the first electrode is formed with a gap of 0.5 mm to 2 mm.