CPC H10K 71/00 (2023.02) [H10K 50/15 (2023.02); H10K 50/18 (2023.02); H10K 59/122 (2023.02); H10K 59/173 (2023.02); H10K 2102/351 (2023.02)] | 9 Claims |
1. An organic light-emitting diode (OLED) device, comprising:
a light-emitting layer;
an insulating layer disposed on one side of the light-emitting layer, a through hole extending through the insulating layer, wherein the through hole is arranged corresponding to a middle portion of the light-emitting layer, and a material of the insulating layer comprises a hole transporting material or an electron blocking material;
an electron transport layer disposed within a lower portion of the through hole and attached to an upper surface of the light-emitting layer; and
an electron injection layer disposed in an upper portion of the through hole and attached to one side of the electron transport layer away from the light-emitting layer.
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