Low reflection, high transmission, touch-panel membrane
US6583935B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2000 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Sep 19, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/261
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Low reflective, flexible, transparent, laminates having a sheet of flexible plastic substrate, a conductive outer layer on one side of the sheet, and an anti-reflective stack of at least one pair of oxide layers on at least one of the sides of the sheet, adapted for use as touch panel membrane electrodes in screen interface displays. A preferred laminate includes a flexible, polyethylene terephthalate sheet substrate having on one side a outer conductive surface of indium tin oxide and on one or both sides an anti-reflective stack of oxide layers, e.g., a stack of a layer of silicon dioxide and a layer of indium tin oxide. Preferred laminates have at least 90% transmission and less than 2% reflection of visible light in the range of 460 to 700 nm and are especially useful as touch panel electrodes, e.g., on computer display screens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.