AC-type gas discharge display with elliptical discharge tube
US6677704B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2002 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Jan 22, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J11/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An AC-type gas discharge display includes a base, discharge tubes which are arranged on the base in parallel to each other and which contain fluorescent phosphors, data electrodes formed on the external surfaces of the discharge tubes such that the data electrodes extend in the longitudinal direction of the discharge tubes, and display electrodes formed in pairs on the external surfaces of the discharge tubes at the opposite side of the data electrodes such that the display electrodes intersect the discharge tubes. Each of the discharge tubes has a flattened elliptical shape in cross-section thereof and includes a pair of flat portions. The data electrodes are formed on one of the flat portions and scanning electrodes and common electrodes are alternately arranged on the other one of the flat portions, and the discharge tubes are supported by the base at one or the other one of the flat portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.