Waveguides having reflective layers formed by reflective flowable materials
First Claim
Patent Images
1. A method of making an optical waveguide structure, the method comprising:
- forming a reflective optical element for a waveguide, wherein forming the reflective optical element comprises;
providing a pattern of protrusions on a first surface of the waveguide; and
depositing a reflective ink to form a reflective ink layer on surfaces of the protrusions, the reflective ink layer having at least one parameter that varies across an area occupied by the pattern of protrusions, andwherein a reflectivity of the reflective optical element varies with the at least one parameter of the reflective ink across the area occupied by the pattern of protrusions.
3 Assignments
0 Petitions
Accused Products
Abstract
In some embodiments, compositions and methods comprising reflective flowable materials, e.g., reflective liquids including reflective inks and/or liquid metals, are described. In some embodiments, a surface is contacted with a reflective flowable material, thereby forming a reflective layer on the surface. In some embodiments, the surface is a surface of a waveguide, for example a waveguide for a display device, and the flowable material coats surfaces of protrusions on the surface to form reflective diffractive optical elements. Some embodiments include a display device comprising a reflective layer of reflective flowable material.
-
Citations
37 Claims
-
1. A method of making an optical waveguide structure, the method comprising:
forming a reflective optical element for a waveguide, wherein forming the reflective optical element comprises; providing a pattern of protrusions on a first surface of the waveguide; and depositing a reflective ink to form a reflective ink layer on surfaces of the protrusions, the reflective ink layer having at least one parameter that varies across an area occupied by the pattern of protrusions, and wherein a reflectivity of the reflective optical element varies with the at least one parameter of the reflective ink across the area occupied by the pattern of protrusions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
21. A method of making a display device, the method comprising:
-
forming a reflective layer of reflective ink on a first surface of an optical waveguide, wherein the first surface comprises protrusions that form a grating, wherein at least one parameter of the reflective layer varies across an area occupied by the protrusions, wherein the reflective layer is disposed on the first surface, thereby making a reflective optical element, and wherein a reflectivity of the reflective optical element varies with the at least one parameter of the reflective layer across the area occupied by the protrusions; and disposing the reflective optical element in a display device. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
-
-
29. A method of making an optical device, the method comprising:
-
providing a waveguide comprising a plurality of surface protrusions; and forming a reflective layer on the plurality of surface protrusions, the reflective layer having at least one parameter that varies across an area occupied by the plurality of surface protrusions, wherein the reflective layer is formed by depositing a reflective flowable material on the plurality of surface protrusions, wherein a reflectivity of the reflective layer varies with the at least one parameter of the reflective layer across the area occupied by the plurality of surface protrusions, and wherein the plurality of surface protrusions and the reflective layer form a reflective diffractive optical element. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37)
-
Specification