Image display apparatus and control method thereof
US7180514B2 · kind B2 · utility
5Cited by
22References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2003 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Aug 29, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/3165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image display apparatus includes a display panel having an electron source, an acceleration electrode for accelerating electrons emitted from the electron source and phosphors for emitting light by collision of electrons accelerated by the acceleration electrode, and a detector for detecting a current flowing through the acceleration electrode during a non-display period. In addition, a controller is provided to decrease the luminance level, stop display driving or transmit warning information when the current detected becomes more than a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.