Flat type cathode ray tube
US4939413A · kind A · utility
7Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1987 |
| Grant date | Jul 3, 1990 |
| Priority date | — |
| Expiry date | Dec 18, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J31/124
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flat type cathode ray tube. Electrode beams are vertically emitted from electron beam emitting sources along vertical scanning electrodes which have a strip-shaped configuration in horizontal direction and are insulated from each other and lined up in the vertical direction. The beams turn at a predetermined position toward a phosphor screen for vertically scanning and are horizontally focussed and deflected onto the phosphor screen by horizontal focussing and deflection electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.