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modifications will be sent to our editors for review. Display
devices convey information in visible form from electronic
devices to human viewers. Common examples are the faces on
digital watches, numerical indicators on stereo equipment, and
the picture tubes in television sets and computer monitors.
Until recently the most versatile of these has been the picture
tube, which can present numbers, letters, graphs, and both still
and moving... ...terminal is today’s ubiquitous interface that
transforms computer-stored data into analog form for human
viewing. The two basic apparatuses used are the cathode-ray tube
(CRT) and the more recent flat-panel display. In CRT displays an
electron gun emits beams of electrons on a phosphorus-coated
surface; the beams are deflected, forming visible patterns
representative of data. Flat-panel... ...its limitations, the
cathode-ray tube (CRT) has been the pr