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US 12,763,230 B2Granted
Transparent conductive oxide having an embedded film
AssigneeVitro Flat Glass LLC
InventorsAshtosh P. Ganjoo, Sudarshan Narayanan, Dennis J. O'Shaughnessy
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Abstract
The present invention is directed to coated articles. A substrate is coated with an underlayer having at a first underlayer film made of a first high refractive index material. A transparent conductive oxide layer over at least a portion of the underlayer. An embedded film is embedded within the transparent conductive oxide layer wherein the embedded film comprises a second high refractive index material.
Claims19
A coated article comprising:
- a substrate;
- an underlayer over at least a portion of the substrate comprising a first refractive index material and a second refractive index material, wherein the underlayer is in direct contact with the substrate;
- a transparent conductive oxide layer over at least a portion of the underlayer;
- and
- an embedded film embedded within the transparent conductive oxide layer, wherein the embedded film comprises a third refractive index material,
- wherein the third refractive index material has a refractive index that is within the range of −10 percent to +10 percent than the first refractive index material,
- wherein the underlayer comprises a first underlayer film and a second underlayer film, such that the second underlayer film is formed over at least a portion of the first underlayer film, and the first underlayer film comprises the first refractive index material and the second underlayer film comprises the second refractive index material,
- wherein the first refractive index material has a refractive index greater than the second refractive index material, and
- wherein the coated article has a sheet resistance that is less than 25 ohms per square.
6 more elements
A coated article comprising:
- a substrate;
- an underlayer over at least a portion of the substrate comprising a first refractive index material and a second refractive index material, wherein the underlayer is in direct contact with the substrate;
- a transparent conductive oxide layer over at least a portion of the underlayer;
- and
- an embedded film embedded within the transparent conductive oxide layer,
- wherein the embedded film comprises a third refractive index material,
- wherein the third refractive index material has a refractive index that is within the range of −10 percent to +10 percent than the first refractive index material,
- wherein the embedded film has a thickness in the range of 5 nm to 50 nm,
- wherein the underlayer comprises a first underlayer film and a second underlayer film, such that the second underlayer film is formed over at least a portion of the first underlayer film, and the first underlayer film comprises the first refractive index material and the second underlayer film comprises the second refractive index material,
- wherein the first refractive index material has a refractive index greater than the second refractive index material, and
- wherein the coated article has a sheet resistance that is less than 25 ohms per square.
8 more elements
A method of improving sheet resistance by at least 35 percent, the method comprising the steps of:
- (a) applying an underlayer over at least a portion of a substrate comprising a first refractive index material and a second refractive index material, wherein the underlayer is in direct contact with the substrate;
- (b) applying a first transparent conductive oxide film over at least a portion of the underlayer;
- (c) applying an embedded film over at least a portion of the first transparent conductive oxide film, wherein the embedded film comprises a third refractive index material, and wherein the third refractive index material has a refractive index that is within the range of −10 percent to +10 percent than the first refractive index material;
- and
- (d) applying a second transparent conductive oxide film over at least a portion of the embedded film to form a transparent conductive oxide layer formed from first transparent conductive oxide film, the embedded film, and the second transparent conductive oxide film,
- wherein the underlayer comprises a first underlayer film and a second underlayer film, such that the second underlayer film is formed over at least a portion of the first underlayer film, and the first underlayer film comprises the first refractive index material and the second underlayer film comprises the second refractive index material,
- wherein the first refractive index material has a refractive index greater than the second refractive index material, and
- wherein the coated article has a sheet resistance that is less than 25 ohms per square.
5 more elements
Dependencies are inferred from the claim text.