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A display device is a device for visual presentation of images (including text) acquired, stored, or transmitted in various forms. Some of them are called simply displays. Common types of display devices are:
Segment displaysSome displays can show only digits or alphanumeric characters. They are called segment displays, because they are composed of several segments that switch on and off to give appearance of desired glyph. The segments are usually single LEDs or liquid crystals. They are mostly used in digital watches and pocket calculators. There are several types:
See also: computer display, graphical output device
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