Image display apparatus and control method thereof
US6707437B1 · kind B1 · utility
26Cited by
16References
54Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1999 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Apr 27, 2019 |
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.