Field emission device and field emission display including dual cathode electrodes
US7372197B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2005 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Jul 22, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2329/0407
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A field emission device and a field emission display (FED) having dual cathode electrodes. The field emission device includes a substrate; a first cathode electrode formed on the substrate; a cathode insulating layer formed on the first cathode electrode, and having a first cavity that exposes a portion of the first cathode electrode; an electron emission source disposed on the first cathode electrode and being exposed by the first cavity; a second cathode electrode formed on the cathode insulating layer, and including a cathode hole aligned with the first cavity; a gate insulating layer formed on the second cathode electrode, and having a second cavity aligned with the first cavity; and a gate electrode formed on the gate insulating layer, and having a gate hole aligned with the second cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.