Patent ID: 8274216
Filing Date: 2012-09-25
Classification: C09K,H01L,H05B

Abstract:
1. A bottom emission type organic electroluminescent panel equipped with an electroluminescent element comprising an anode and a cathode on a substrate and at least one organic layer between the anode and the cathode, wherein the electroluminescent panel comprises: a main emission area emitting light with a high luminance; and a non-emission area or a low emission area emitting light with a relatively lower luminance than that of the main emission area, the non-emission area or low emission area being located outside an edge portion of the main emission area, provided that an edge portion of a cathode forming area is arranged outside the edge portion of the main emission area by limiting the main emission area to a smaller size than that of the cathode forming area, wherein at least one electron injection layer is provided as a constituent layer of the organic layer and an area for forming the at least one electron injection layer is narrower than the cathode forming area, a portion of the at least one electron injection area being arranged outside an outer edge portion of the anode, wherein all of the edge portions of the cathode forming area are arranged outside of the electron injection layer, and wherein a portion of the organic layer is arranged outside of the cathode forming area.