Organic light emitting device
AssigneeShenzhen China Star Optoelectronics Technology Co., Ltd.
InventorChao XU
Life of this patent
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Abstract
An organic light emitting device is provided. The organic light emitting device has a mixed light extraction layer, a base substrate, a first light extraction layer, a light-emitting layer, and a second light extraction layer; the first light extraction layer is configured to transmit the light emitted from the light-emitting layer to the base substrate; and the mixed light extraction layer is configured to transmit the emitting light outputted from the base substrate to an air area on the mixed light extraction layer, so as to increase a light utilization of the light-emitting layer.
Claims18
An organic light emitting device, comprising:
- a base substrate;
- a mixed light extraction layer located on the base substrate, and comprising a second light extraction layer and a third light extraction layer located on the second light extraction layer, wherein a refractive index of a material of the third light extraction layer is smaller than that of the base substrate, and the refractive index of the material of the base substrate is smaller than that of the second light extraction layer;
- a first light extraction layer located under the base substrate;
- a first electrode layer located under the first light extraction layer and configured to output holes by voltage driving;
- a light-emitting layer located under the first electrode layer and configured to generate a light by an excitation of the holes of the first electrode layer and electrons of an electrode layer;
- and
- the second electrode layer located under the light-emitting layer and configured to output the electrons by voltage driving;
- wherein the first light extraction layer is configured to transmit the light emitted from the light-emitting layer to the base substrate;
- the mixed light extraction layer is configured to transmit the emitting light outputted from the base substrate to an air area on the mixed light extraction layer, so as to increase a light utilization of the light-emitting layer;
- and a refractive index of a material of the first light extraction layer is greater than that of the first electrode layer.
An organic light emitting device, comprising:
- a base substrate;
- a mixed light extraction layer located on the base substrate;
- a first light extraction layer located under the base substrate;
- a first electrode layer located under the first light extraction layer and configured to output holes by voltage driving;
- a light-emitting layer located under the first electrode layer and configured to generate a light by an excitation of the holes of the first electrode layer and electrons of a second electrode layer;
- and
- the second electrode layer located under the light-emitting layer and configured to output the electrons by voltage driving;
- wherein the first light extraction layer is configured to transmit the light emitted from the light-emitting layer to the base substrate;
- and the mixed light extraction layer is configured to transmit the light outputted from the base substrate to an air area on the mixed light extraction layer, so as to increase a light utilization of the light-emitting layer.
Dependencies are inferred from the claim text.