Matrix-addressed flat panel display
US4857799A · kind A · utility
198Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1986 |
| Grant date | Aug 15, 1989 |
| Priority date | — |
| Expiry date | Jul 30, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2329/863
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A matrix-addressed flat panel display is described, utilizing cathodes of the field emission type. The cathodes are incorporated into the display backing structure, and energize corresponding cathodoluminescent areas on a face plate. The face plate is spaced 40 microns from the cathode arrangement in the preferred embodiment, and a vacuum is provided in the space between the plate and such cathodes. Spacers in the form of legs interspersed among the pixels maintain the spacing, and electrical connections for the bases of the cathodes are diffused sections through the backing structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.