Patent ID: 8564015

Claim:
An organic light-emitting diode, comprising: a substrate; a first electrode disposed over the substrate; a light-emitting region disposed over the first electrode, in which the light-emitting region comprises a first light-emitting laver, a second light-emitting layer and at least one spacer, therewith the at least one spacer being disposed between the first light-emitting layer and the second light-emitting layer, the first light-emitting layer being disposed between the second light-emitting layer and the first electrode, each of the first light-emitting layer and the second light-emitting layer individually including a dye, and highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels of a material of the spacer being located between those of adjacent light-emitting layers, wherein the first light-emitting layer comprises MDP3FL and DSB as the dye therewith a content of the DSB being from 0.01 wt % to 50 wt % of the MDP3FL; and a second electrode disposed over the light-emitting region.