Light emitting device resistant to damage by thermal expansion
US5406170A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 8, 1993 |
| Grant date | Apr 11, 1995 |
| Priority date | — |
| Expiry date | Dec 8, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J31/123
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to light emitting devices which emit light upon impingement of thermoelectrons on a front panel having fluorescent elements and where an array of cathodes and electrodes are provided on a substrate within each light emitting device. Thus, in the present invention, first electrode leads having a coefficient of thermal expansion substantially equal to that of the substrate are inserted into and through the substrate, and second electrode leads having a coefficient of thermal expansion substantially equal to that of the rear panel are inserted into and through the rear panel, and the first and second electrode leads are connected such that the substrate is supported at a distance above the rear panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.