Transparent conductive stratiform coating of indium tin oxide
US6743488B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2001 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | May 9, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24942
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A transparent electrically conductive device which includes an indium tin oxide film is improved by providing an indium tin oxide film which contains a graded stack of individual indium tin oxide layers wherein the atomic percent of tin in the layers can be individually selected. Each indium tin oxide layer of the film contains 1-99 atomic percent tin. Each layer is made by a physical vapor deposition process or by sputter coating. Preferably the film which contains a plurality of indium tin oxide layers is applied to a transparent flexible substrate such as a polymeric sheet. Optional primer layers, hardcoat layers and topcoat layers may be included in the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.