Patent ID: 8866128
Filing Date: 2014-10-21
Classification: H01L,H05B

Abstract:
1. An organic electroluminescent device, comprising: an anode; a hole injection layer formed on an upper portion of the anode; a cathode disposed on the upper portion of the anode to be opposed to the anode; a hole blocking layer formed on a lower portion of the cathode; light-emitting organic material layers being formed between the hole injection layer and the hole blocking layer; and more than one inorganic oxide interlayer that is inserted between the light-emitting organic material layers, wherein each of the more than one inorganic oxide interlayer contacts only the light-emitting organic material layers, the hole injection layer contacts directly with the anode and the light-emitting organic material layer, and the hole blocking layer contacts directly with the cathode and the light-emitting organic material layer.