Flat display panel having spacers
US5789857A · kind A · utility
42Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1995 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Nov 15, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2329/8625
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vacuum envelope capable of preventing contamination of an electron source and deterioration of luminous characteristics of a phosphor layer. Electrons emitted from a tip end of emitter cones are accelerated by an anode conductor to which a positive voltage is applied with respect to a gate conductor, to thereby impinge on the phosphor layer, leading to luminescence of the layer. The luminescence is observed through a transparent anode substrate. Spacers are bonded at only one end thereof to a cathode substrate by means of seal glass, to thereby keep the seal glass from being irradiated with electrons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.