Surface-discharge type display device with reduced power consumption and method of making display device
US6650053B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2001 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | May 2, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2211/323
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A surface-discharge type display device is provided that can reduce power consumption during sustain discharge and suppress the occurrence of illumination failures. A display electrode and a display scan electrode are aligned on a substrate, and a dielectric layer is formed on the substrate so as to cover the display electrode and the display scan electrode. An area having a lower relative permittivity than the dielectric layer is formed in an area surrounded on three sides by the display electrode, the display scan electrode, and the substrate. The dielectric layer allows sufficient wall charges for surface discharge to be accumulated, whereas the lower relative permittivity area allows the capacitance between the display electrode and the display scan electrode to be decreased. Accordingly, the power consumption during sustain discharge is reduced without causing illumination failures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.