Organic light emitting diode and display device having the same
AssigneeSamsung Display Co., Ltd.
InventorHyunshik Lee
Life of this patent
Estimating the term…
Abstract
An organic light emitting diode includes: a first electrode layer; a second electrode layer on the first electrode layer and facing the first electrode layer; a first light emitting layer between the first electrode layer and the second electrode layer and comprising a phosphorescent material; a first hole control layer between the first electrode layer and the first light emitting layer; a second light emitting layer between the first light emitting layer and the second electrode layer and comprising a fluorescent material; and a charge generating layer between the first light emitting layer and the second light emitting layer, the first hole control layer having a thickness equal to or greater than 100 angstroms and equal to or smaller than 900 angstroms.
Claims19
An organic light emitting diode comprising:
- a first electrode layer;
- a second electrode layer on the first electrode layer and facing the first electrode layer;
- a first light emitting layer between the first electrode layer and the second electrode layer and comprising a phosphorescent material;
- a first hole control layer between the first electrode layer and the first light emitting layer;
- a second light emitting layer between the first light emitting layer and the second electrode layer and comprising a fluorescent material;
- a charge generating layer between the first light emitting layer and the second light emitting layer, the first hole control layer having a thickness equal to or greater than 100 angstroms and equal to or smaller than 900 angstroms,
- wherein a resonance distance of the organic light emitting diode is a distance between a surface of the first electrode layer and a surface of the second electrode layer, which faces the surface of the first electrode layer.
A display device comprising:
- a display panel;
- and
- a color control layer on the display panel, the display panel comprising:
- a first electrode layer;
- a second electrode layer on the first electrode layer to face the first electrode layer;
- a first light emitting layer between the first electrode layer and the second electrode layer, and configured to generate a first light having a first predetermined wavelength, and comprising a phosphorescent material;
- a first hole control layer between the first electrode layer and the first light emitting layer;
- a second light emitting layer between the first light emitting layer and the second electrode layer, and configured to generate a second light having a second predetermined wavelength, and comprising a fluorescent material;
- a charge generating layer between the first light emitting layer and the second light emitting layer, wherein the first light has a same color as the second light,
- wherein a distance between a surface of the first electrode layer and a surface of the second electrode layer which faces the surface of the first electrode layer is defined as a resonance distance.
Dependencies are inferred from the claim text.