Light-emitting element and display device
AssigneeSharp Kabushiki Kaisha
InventorsYusuke Sakakibara, Masaki Yamamoto
Life of this patent
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Abstract
A light-emitting element includes: a first electrode having a reflective surface that reflects light; a second electrode that transmits light; and a light-emitting layer between the first electrode and the second electrode, the light-emitting layer containing a first light-emitting material that emits first light that has a peak wavelength equal to a first wavelength and a second light-emitting material that emits second light that has a peak wavelength equal to a second wavelength shorter than the first wavelength, wherein the second light has at least one location where intensity is higher in a direction off a normal to the reflective surface than in the normal.
Claims10
A light-emitting element comprising:
- a first electrode having a reflective surface that reflects light;
- a second electrode that transmits light;
- and
- a light-emitting layer between the first electrode and the second electrode, the light-emitting layer containing a first light-emitting material that emits a first light that has a peak wavelength equal to a first wavelength, and a second light-emitting material that emits a second light that has a peak wavelength equal to a second wavelength, shorter than the first wavelength, wherein:
- in at least one location of the light-emitting layer, an off-normal intensity of the second light, which is emitted in a direction off a normal to the reflective surface, is higher than a normal intensity of the second light, which is emitted in a direction of the normal, and
- the normal intensity is a minimum intensity.
Dependencies are inferred from the claim text.