OLED with electron transport layer within insulating layer
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorsFeng Wei, Aiguo Tu
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Abstract
The present invention provides an organic light-emitting diode (OLED) device and a manufacturing of the OLED device. The OLED device includes a light-emitting layer, an insulating layer, an electron transport layer, and an electron injection layer. The insulating layer is arranged on one side of the light-emitting layer, and a through hole is in the insulating layer. The through hole is arranged corresponding to a middle portion of the light-emitting layer. The electron transport layer is in a lower portion of the through hole and attached to a surface of the light-emitting layer. The electron injection layer is in an upper portion of the through hole and attached to one side of the electron transport layer away from the light-emitting layer.
Claims9
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.
A manufacturing method of an organic light-emitting diode (OLED) device, comprising following steps:
- a light-emitting layer manufacture step:
- forming a light-emitting layer;
- an insulating layer manufacture step:
- forming an insulating layer on the light-emitting layer, wherein a through hole extends through the insulating layer, 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 manufacture step:
- forming an electron transport layer by inkjet printing, wherein the electron transport layer fills a lower portion of the through hole, and the electron transport layer is attached to an upper surface of the light-emitting layer;
- and
- an electron injection layer manufacture step:
- forming an electron injection layer by inkjet printing, wherein the electron injection layer fills an upper portion of the through hole and is disposed within the upper portion of the through hole, and the electron injection layer is attached to an upper surface of the electron transport layer.
Dependencies are inferred from the claim text.