Display device

A display device is an output device for presentation of information in visual[1] or tactile form (the latter used for example in tactile electronic displays for blind people).

Common applications for electronic visual displays are television sets or computer monitors.

Some displays can show only digits or alphanumeric characters.

The segments are usually single LEDs or liquid crystals.

2-dimensional displays that cover a full area (usually a rectangle) are also called video displays, since it is the main modality of presenting video.