Ladas & Parry LLP
Organic light-emitting diode and display panel
Provided is an organic light-emitting diode. The organic light-emitting diode includes a first electrode, a second electrode, a light-emitting layer and a hole blocking layer, where the first electrode and the second electrode are oppositely disposed; the light-emitting layer is disposed between the first electrode and the second electrode; the hole blocking layer is disposed between the light-emitting layer and the second electrode; and the hole blocking layer includes at least two hole blocking sub-layers which are stacked, where a lowest unoccupied molecular orbital (LUMO) energy level decreases sequentially in the at least two hole blocking sub-layers.
YUNGU (GU'AN) TECHNOLOGY CO., LTD.
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Mengzhen Weiwei Chao Chi Lin Tiantian Jingwen
Li Li Peng He Li Tian