With a 100-year head start over more modern screen technologies, the CRT is still a formidable technology. Itâ€™s based on universally understood principles and employs commonly available materials. The result is cheap-to-make monitors capable of excellent performance, producing stable images in true colour at high display resolutions. But in the world of miniaturization, Cathode ray tubes (CRT) are giant dinosaurs waiting for extinction. A CRT uses a single-point hot electron source that is scanned across the screen to produce an image.
The CRTâ€™s most obvious shortcomings are well known:
The FED screens are lightweight, low power consuming and compact. The FEDs can be used instead of some other technologies are gaining market share in big screen and PC monitors, such as Projection TV, Plasma Displays, Liquid Crystal, and Organic Transistor Displays.
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