Field emission display using line cathode structure
US6791278B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 27, 2002 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Nov 27, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J31/127
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron emitting structure, for example, for use as a cathode plate of a field emission display (FED). The structure comprises a substrate, base electrodes formed on the substrate and gate electrodes crossing over the base electrodes. An insulating material is formed on the substrate and the base electrodes that separates the gate electrodes from the base electrodes, the gate electrodes formed on the insulating material. And an electron emitting material is deposited on active regions of the base electrodes, each active region defined as a portion of each base electrode between a respective pair of gate electrodes. In one implementation, the FED produces a substantially uniform electric field in the active region in order to produce a substantially straight electron emission little dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.