Electronic emission device, electron emission display device having the same, and method of manufacturing the electron emission device
US7652418B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2006 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Jan 5, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/876
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron emission device which can uniformly emit electrons and can be simply manufactured at a reduced cost, and a display apparatus having improved uniform brightness of pixels by using the electron emission device. In addition, a simple method of manufacturing the electron emission device. The electron emission device includes: a first substrate; a cathode electrode and an electron emission unit disposed on the first substrate; a gate electrode electrically insulated from the cathode electrode; an insulating layer disposed between the cathode electrode and the gate electrode to insulate the cathode electrode from the gate electrode; and an electron emission source including carbon nanotubes (CNTs) that contact the cathode electrode, wherein distances between the gate electrode and the tips of the CNTs are uniform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.