THREE PRIMARY COLORS WHITE LIGHT OLED ELEMENT STRUCTURE, AND ELECTRO LUMINESCENT DEVICE AND DISPLAY ELEMENT THEREOF

摘要

Disclosed is a three primary colors white light OLED element structure. The element structure includes: a substrate, an anode on the substrate, a P type doping layer on the anode, a first light emitting layer on the P type doping layer, a first N type semiconductor material layer on the first light emitting layer, a first P type semiconductor material layer on the first N type semiconductor material layer, a second light emitting layer on the first P type semiconductor material layer, a second N type semiconductor material layer on the second light emitting layer, a second P type semiconductor material layer on the second N type semiconductor material layer, a third light emitting layer on the second P type semiconductor material layer, a N type doping layer on the third light emitting layer, and a cathode on the N type doping layer.