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. Image of the Wikimedia Commons logo. ...

Common types of display devices are:

• Analog electronic displays
  • CRT display (earlier)
• Digital electronic displays
  • Electronic paper
  • Nixie tube displays (now obsolete)
  • LED displays (later)
  • LCD (most recent)
    • HPA display
    • TFT display
  • OLED (forthcoming)
  • Carbon Nanotubes (forthcoming)
• 3D Displays
• Projectors
  • Analog projectors
    • Movie projector
    • Slide projector
  • Digital projectors
    • Digital projector
• Several obsolete mechanical types, such as:
  • Ticker tape
  • "Departure board" display (see talk page)

An analog or analogue signal is any continuously variable signal. ... The cathode ray tube or CRT, invented by Karl Ferdinand Braun, is the display device used in most computer displays, video monitors, televisions and oscilloscopes. ... A digital system is one that uses discrete values rather than a continuous spectrum of values: compare analog. ... Electronic paper, or e-paper, is a technology that allows the text on a piece of paper to be re-written. ... A nixie tube is an electronic device for displaying numbers or other information, in the form of a glass tube containing multiple cathodes and a wire mesh anode, filled with neon and often a little mercury and/or argon at a small fraction of atmospheric pressure. ... Various light-emitting diodes (5 mm reds, 3 mm greens and yellows) A light-emitting diode (LED) is a semiconductor device that emits incoherent monochromatic light when electrically biased in the forward direction. ... LCD redirects here. ... Variation in the physical appearance of humans is believed by anthropologists to be an important factor in the development of personality and social relations in particular physical attractiveness. ... A thin film transistor (TFT) is special kind of field effect transistor made by depositing thin films for the metallic contacts, semiconductor active layer, and dielectric layer. ... One of the best attributes of an OLED display is its flexibility. ... An electronic device known as a diode can be formed by joining two nanoscale carbon tubes with different electronic properties. ... A 3D Display is a display that uses voxels instead of pixels. ... This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... An analog or analogue signal is any continuously variable signal. ... A movie projector is an opto-mechanical device for displaying moving pictures. ... A carousel slide projector, the most common form of projector A slide projector is an opto-mechanical device to view photographic slides. ... A digital system is one that uses discrete values rather than a continuous spectrum of values: compare analog. ... This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... Ticker tape was used by ticker tape machines, stock ticker machines, or just stock tickers. ...

Segment displays

Some 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: In mathematics and computer science, a numerical digit is a symbol, e. ... Generally speaking, the term alphanumeric refers to anything that consists of only letters and numbers. ... A glyph is a carved figure or character, incised or in relief; a carved pictograph; hence, a pictograph representing a form originally adopted for sculpture, whether carved or painted. ... Various light-emitting diodes (5 mm reds, 3 mm greens and yellows) A light-emitting diode (LED) is a semiconductor device that emits incoherent monochromatic light when electrically biased in the forward direction. ... LCD redirects here. ... Pocket watch A watch is a small portable clock that displays the current time and sometimes the current day, date, month and year. ... A basic arithmetic calculator. ...

• Seven segment display (most common, digits only)
• Fourteen segment display
• Sixteen segment display

See also: computer display, graphical output device A seven segment display (sometimes written as 7-segment display) is a form of display that predates the now ubiquitous dot-matrix displays. ... LCD fourteen segment display as seen on the HP-41 range of engineering calculators A fourteen segment display is an optoelectronic type of display based on 14 segments that can be turned on or off according to the graphic pattern to be produced. ... Segment layout, showing all 16 segments. ... Nineteen inch (48 cm) CRT computer monitor A computer display, monitor or screen is a computer peripheral device capable of showing still or moving images generated by a computer and processed by a graphics card. ... A graphical output device is a computer output device that produces visual material. ...