Light emitting diode and display device including the same
AssigneeSamsung Display Co., Ltd.
InventorsBora LEE, Hyomin KO
Life of this patent
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Abstract
A light emitting diode of an embodiment of the present disclosure includes a first electrode, a hole transport region on an upper portion of the first electrode and having a first refractive index, an emission layer on an upper portion of the hole transport region and having a second refractive index less than the first refractive index, an electron transport region on an upper portion of the emission layer, and a second electrode on an upper portion of the electron transport region.
Claims20
A light emitting diode comprising:
- a first electrode;
- a hole transport region on an upper portion of the first electrode and having a first refractive index;
- an emission layer on an upper portion of the hole transport region and having a second refractive index less than the first refractive index;
- an electron transport region on an upper portion of the emission layer;
- and
- a second electrode on an upper portion of the electron transport region.
A light emitting diode comprising:
- a first electrode;
- a hole transport region on an upper portion of the first electrode and having a first refractive index;
- a first emission layer on an upper portion of the hole transport region and having a second refractive index;
- a second emission layer on an upper portion of the first emission layer;
- an electron transport region on an upper portion of the second emission layer;
- and
- a second electrode on an upper portion of the electron transport region,
- wherein the first refractive index is greater than the second refractive index by 0.1 or more.
A display device comprising a plurality of light emitting diodes, each of the light emitting diodes comprising:
- a first electrode;
- a hole transport region on an upper portion of the first electrode and having a first refractive index;
- an emission layer on an upper portion of the hole transport region and having a second refractive index less than the first refractive index;
- an electron transport region on an upper portion of the emission layer;
- and
- a second electrode on an upper portion of the electron transport region,
- wherein each of the light emitting diodes emits light having different center wavelengths.
Dependencies are inferred from the claim text.