Nanowire-based transparent conductors and applications thereof
AssigneeCambrios Technologies Corporation
InventorsPierre-Marc Allemand, Haixia Dai, Shuo Na, Hash Pakbaz, Florian Pschenitzka, Xina Quan, Jelena Sepa, Michael A. Spaid
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Abstract
A transparent conductor including a conductive layer coated on a substrate is described. More specifically, the conductive layer comprises a network of nanowires that may be embedded in a matrix. The conductive layer is optically clear, patternable and is suitable as a transparent electrode in visual display devices such as touch screens, liquid crystal displays, plasma display panels and the like.
Claims11
A touch screen device comprising:
- a first transparent conductive layer including metal nanowires, wherein the metal nanowires are at or above an electrical percolation level;
- and
- a second transparent conductive layer positioned above the first transparent conductive layer and separated therefrom by a spacer, the second transparent conductive layer including metal nanowires, wherein the metal nanowires are at or above the electrical percolation level;
- wherein at least one of the first transparent conductive layer and the second transparent conductive layer is further coated with a transparent overcoat, the transparent overcoat including a plurality of conductive particles at below the electrical percolation level, and wherein the transparent overcoat is surface conductive.
A multi-layer structure comprising:
- a substrate;
- a conductive layer formed on the substrate, wherein the conductive layer comprises a first plurality of metallic nanowires, the first plurality of metallic nanowires reaching an electrical percolation level;
- and
- an overcoat formed on the conductive layer, the overcoat incorporating a second plurality of conductive particles, the second plurality of conductive particles being below the electrical percolation level, and wherein the overcoat is surface conductive.
A touch screen device comprising a multi-layer structure having:
- a conductive layer, wherein the conductive layer comprises a first plurality of metallic nanowires, the first plurality of metallic nanowires reaching an electrical percolation level;
- and
- an overcoat formed on the conductive layer, the overcoat incorporating a second plurality of conductive particles, the second plurality of conductive particles being below the electrical percolation level and wherein the overcoat is surface conductive.
Dependencies are inferred from the claim text.