Projection screen for image reproduction devices which are positioned next to and/or above one another
US6335829B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2000 |
| Grant date | Jan 1, 2002 |
| Priority date | — |
| Expiry date | Mar 7, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3147
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multi-screen display for rear projection applications includes a supporting structure and a screen comprising a plurality of screen panels which are positioned and attached to one another and to attachment plates by joining wires. The seams between the screen panels are minimal, specifically less than half of a millmetre wide, even in the event of relatively inaccurate installation of the projection screen, in spite of manufacturing tolerances and under changing climatological conditions, such as temperature and relative atmospheric humidity, owing to the fact that the attachment plates to which the screen panels are fixed using the joining wires are deformable and/or movably joined to the supporting structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.