Light-emitting device having a recessed portion in rear panel thereof
US5844358A · kind A · utility
1Cited by
12References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1996 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Jan 11, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J31/123
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light emitting device is provided including a front panel on which fluorescent elements are arranged in a matrix form and a rear panel onwhich cathodes are arranged in a corresponding relation to the fluorescent elements. The cathodes emit thermoelectrons for causing the fluorescent elements to emit light, and a square frame-like spacer is provided, one opening portionof the spacer being covered with the front panel and the other opening portion thereof covered with the rear panel. A stepped portion for fitting with the spacer is formed in a position of the rear panel to be bonded with the spacer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.