Integrated touch paint system for displays
US4692809A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1984 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Nov 20, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S345/902
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch panel system for displays is provided having electromagnetic energy interference shielding arrangements coupled with other features for an integrated, easily maintained, operator-adapted touch panel system. The system includes an electromagnetic energy interference shielding bezel mounted at the front of the display unit to an outer display housing. The bezel is integrated with an optically transparent and electrically conductive faceplate covering the display, and a raised border with an associated electromagnetic energy interference seal located at the periphery of the active touch panel area which is disposed between the faceplate and the bezel to complete an electrical path. The faceplate is roughened to disperse spatial interference patterns and reflections, and in one embodiment, has an electrically conductive wire mesh disposed within it for electromagnetic energy interference sealing and contrast enhancement for filtering extraneous light in the manner of a venetian blind. The faceplate may be provided with an electrically conductive coating for electromagnetic energy interference shielding and for contrast enhancement. The system includes a fixed function key area …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.