Back to results
US 2006/0186801 A1Published application
Coupled waveguides for light extraction
AssigneeCorning Incorporated
InventorJames West
Life of this patent
Estimating the term…
Abstract
A light source includes a first waveguide. The first waveguide includes a light emitting material having a first index of refraction and at least one layer is disposed over the light emitting material. The at least one layer has a second index of refraction and the first index of refraction is greater than the second index of refraction. The light source also includes a second waveguide, which is coupled to the first waveguide. The light emitting device also includes a light extraction structure.
Claims21
A light source, comprising:
- a first waveguide, which includes a light emitting material having a first index of refraction;
- at least one layer disposed over the light emitting material, wherein the at least one layer has a second index of refraction and the first index of refraction is greater than the second index of refraction;
- a second waveguide, which is coupled to the first waveguide;
- and
- a light extraction structure, which is adapted to direct light from the light sources and substantially into free space.
2 more elements
An organic light emitting device (OLED), comprising:
- a first waveguide, which includes an organic light emitting material having a first index of refraction, and a cathode and an anode;
- at least one layer disposed over the material, wherein the at least one layer has a second index of refraction and the first index of refraction is greater than the second index of refraction;
- a second waveguide, which is coupled to the first waveguide;
- and
- a light extraction structure.
2 more elements
Dependencies are inferred from the claim text.