Patent ID: 11018314

Abstract:
An organic electroluminescent diode, a display panel, a display device and a manufacturing method of an organic electroluminescent diode are provided. The organic electroluminescent diode includes a first electrode, a first electron blocking layer, a light-emitting layer and a second electrode which are stacked arranged in sequence, a surface of the first electron blocking layer in contact with the light-emitting layer is doped with a hole-type non-metallic material. In the embodiment of the present disclosure, by doping the hole-type non-metallic material in the first electron blocking layer, the density of the holes at the recombination interface is increased, the utilization rate of the holes is improved, and the loss of holes in the transmission process is avoided, which ensures that the holes are timely recombined with the transmitted electrons, and avoids the accumulation of too many electrons at the interface between the first electron blocking layer and the light-emitting layer.