Capacitive touch screen and method of making same
US8354143B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2006 |
| Grant date | Jan 15, 2013 |
| Priority date | — |
| Expiry date | Nov 11, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0445
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A capacitive touch screen and method of manufacturing such a touch screen includes providing a substrate and coating a surface of the substrate with a transparent conductive coating. An uncured conductive electrode material, such as an uncured silver epoxy material or an uncured silver or equivalent conducting metallic paste material, is disposed at least over a portion of the transparent conductive coating to establish a precursor of at least one metallic electrode at the substrate surface. A precursor of a protective hardcoat is established at least over the transparent conductive coating and/or the metallic electrode. Such precursor/undercured/uncured layers are then cured via a single common curing/firing process, which may heat the substrate and coatings to an elevated temperature, such as at about 500 degrees Celsius or above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.