Patent ID: 9166184
Filing Date: 2015-10-20
Classification: H01L

Abstract:
1. An organic light-emitting device comprising a substrate, an anode layer, a cathode layer and an organic functional layer disposed between the anode layer and the cathode layer, wherein the organic functional layer comprises a light-emitting layer, and the light-emitting layer comprises three successive light-emitting sub-layers, including, a first light-emitting sub-layer close to the anode layer, a second light-emitting sub-layer, and a third light-emitting sub-layer close to the cathode layer; wherein each of the three light-emitting sub-layers comprises a matrix material doped with a light-emitting material and the three light-emitting sub-layers are all doped with the light-emitting material emitting light of a same color; and wherein a mixture matrix material is employed as the matrix material for the second light-emitting sub-layer, and the mixture matrix material comprises a matrix material with hole transport capacity and a matrix material with electron transport capacity that are mixed together; a matrix material with hole transport capacity is employed as the matrix material for the first light-emitting sub-layer; and a matrix material with electron transport capacity is employed as the matrix material for the third light-emitting sub-layer.