US Pat. No. 9,671,571

FLAT PANEL WAVEGUIDE DISPLAY AND SYSTEM

Wenjun Yang, Shanghai (C...

1. A flat panel waveguide display of a projection system, comprising:
a fan out region, being configured to allow light to experience total internal reflection therein;
a screen region, including a front surface, a back surface, and several side surfaces, the front surface is opposite to the
back surface, wherein one side surface of the screen region optically connects to one side surface of the fan out region;
and

a first dielectric layer, coated on the front surface of the screen region,
wherein both of the fan out region and the screen region are made of waveguide material;
wherein the first dielectric layer is divided into a first group of sections along a direction of light path of light entering
from the fan out region into the screen region, a refractive index within each section of the first group of sections is the
same, and the refractive index of each section among the first group of sections is different from one another,

wherein the refractive index of each section in the first group of sections increases in sequence along the direction of light
path of light entering from the fan out region into the screen region.

US Pat. No. 10,660,217

METHODS OF FAST FABRICATION OF SINGLE AND MULTILAYER CIRCUIT WITH HIGHLY CONDUCTIVE INTERCONNECTIONS WITHOUT DRILLING

Jun Yang, London, ON (CA...

1. A method of fabricating metal-fiber conductive structures on a porous substrate, the method comprising the steps of:(i) applying a coating compound comprising poly (4-vinylpyridine) (P4VP), Polyvinylpyrrolidone (PVP) and SU-8 dissolved in an organic alcohol solution to one or more surface of the porous substrate;
(ii) curing the porous substrate at a temperature of at least 130° C. such that the porous substrate is coated with a layer of said coating compound;
(iii) printing a jet of a transition metal salt catalyst solution onto one or more printing sides of the porous substrate to deposit a transition metal salt catalyst onto the one or more printing sides;
(iv) submerging the substrate in an electroless metal deposition solution to deposit the metal on the porous substrate, wherein the deposited metal induces the formation of one or more three-dimensional metal-fiber conductive structures within the porous substrate.