Electron gun for cathode ray tube and cathode ray tube with the same
US7362044B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2006 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Mar 10, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/488
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A CRT includes an electron gun that includes a cathode adapted to emit thermal electrons, a first electrode and a second electrode adapted to form a triode portion together with the cathode, a plurality of focusing electrodes, an anode electrode and a subsidiary electrode arranged between the second electrode and a one of said plurality of focusing electrode adjacent to the second electrode. The subsidiary electrode is adapted to dynamically control an imaginary crossover point ofelectron beams emanating from the electron gun corresponding to landing locations ofthe electron beams on a phosphor screen of a panel in response to a voltage applied thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.