In addition, they do not have the viewing angle dependency of LCDs. These devices have power requirements that are significantly lower than other display systems, operating as much as ten times more efficiently than CRTs or LCDs. Finally, they require far less space than conventional displays, with typical unit thicknesses of 2.5 inches as compared to bulky CRTs, and are comparatively lightweight. FEDs are cold cathode devices, requiring no warm-up time and operating without temperature limitations. Numerous applications for FEDs exist-essentially any place where video display can be utilized.
Some examples are head-up and multifunction avionics, as well as automotive display systems.
Another application is in the medical field, where FEDs are readily visible in the brightly lit operating room environment. FED development is highly competitive, with several companies working toward high performance, production-level technology. Initial deliveries are scheduled for 1996. Micron Display Technologies has developed FED technology using silicon microtips rather than molybdenum, which has the potential to simplify device manufacture. The Microelectronics Computer and Technology Center and SI Diamond Technology is working toward an FED based upon diamond film emitters rather than metal microtips.