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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).[2] When the input information that is supplied has an electrical signal the display is called an electronic display.
Common applications for electronic visual displays are television sets or computer monitors.
Types of electronic displays
In use
These are the technologies used to create the various displays in use today.
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. Common types are seven-segment displays which are used for numerals only, and alphanumeric fourteen-segment displays and sixteen-segment displays which can display numerals and Roman alphabet letters.
Other types
- Vacuum fluorescent display
- Electroluminescent (ELD) display
- Plasma (PDP) display
- Laser-powered phosphor display
Cathode-ray tubes were also formerly widely used.
Full-area 2-dimensional displays
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.
Applications of full-area 2-dimensional displays
Full-area 2-dimensional displays are used in, for example:
- Television set
- Computer monitors
- Head-mounted displays, Heads-up displays and Virtual reality headsets
- Broadcast reference monitor
- Medical monitors
- Mobile displays (for mobile devices)
- Smartphone displays (for smartphones)
- Video walls
Underlying technologies of full-area 2-dimensional displays
Underlying technologies for full-area 2-dimensional displays include:
- Cathode-ray tube display (CRT)
- Light-emitting diode display (LED)
- Electroluminescent display (ELD)
- Electronic paper, E Ink
- Plasma display panel (PDP)
- Liquid-crystal display (LCD)
- High-performance addressing display (HPA)
- Thin-film transistor display (TFT)
- Organic light-emitting diode display (OLED)
- Digital Light Processing display (DLP)
- Surface-conduction electron-emitter display (SED) (experimental)
- Field-emission display (FED) (experimental)
- Laser TV (forthcoming)
- Carbon nanotubes (experimental)
- Quantum dot display (QLED)
- Interferometric modulator display (IMOD)
- Digital microshutter display (DMS)
- microLED (in development)
The multiplexed display technique is used to drive most display devices.
Three-dimensional displays
Mechanical types
- Ticker tape (historical)
- Split-flap display (or simply flap display)
- Flip-disc display (or flip-dot display)
- Vane display
- Rollsign
- Tactile electronic displays are usually intended for the blind. They use electro-mechanical parts to dynamically update a tactile image (usually of text) so that the image may be felt by the fingers.
- Optacon, using metal rods instead of light in order to convey images to blind people by tactile sensation.
See also
- Comparison of CRT, LCD, plasma, and OLED displays
- Graphical user interfaces
- History of display technology
- User interface
- Input device
- Text display
References
- ^ Lemley, Linda. "Chapter 6: Output". Discovering Computers. University of West Florida. Archived from the original on 14 June 2012. Retrieved 3 June 2012.
- ^ "Accommodations For Vision Disabilities". Energy.gov. Office of the Chief information Officer. Archived from the original on 9 June 2012. Retrieved 3 June 2012.
External links
- Society for Information Display - An international professional organization dedicated to the study of display technology
- University of Waterloo Stratford Campus - A university that offers students the opportunity to display their work on the school's 3-storey Christie MicroTile wall.
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Output device
Information
Visual
Touch
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Electronic visual display
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Computer monitor
Electronic visual display
Liquid-crystal display
LED-backlit LCD
TFT LCD
Quantum dot display
LED display
OLED
AMOLED
AMOLED#Super AMOLED
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Seven-segment display
Nine-segment display
Fourteen-segment display
Sixteen-segment display
Numerical digit
Alphanumeric
Glyph
LED
LCD
Digital watch
Pocket calculator
Seven-segment display
Fourteen-segment display
Sixteen-segment display
Vacuum fluorescent display
Electroluminescent display
Plasma display
Laser-powered phosphor display
Cathode-ray tube
2-dimensional
Rectangle
Video
Television set
Computer monitor
Head-mounted display
Heads-up display
Virtual reality headset
Broadcast reference monitor
Medical monitor
Mobile display
Mobile devices
Comparison of high-definition smartphone displays
Smartphones
Video wall
Cathode-ray tube
LED display
Electroluminescent display
Electronic paper
E Ink
Plasma display
Liquid-crystal display
High-performance addressing
Thin-film transistor
Organic light-emitting diode
Digital Light Processing
Surface-conduction electron-emitter display
Field-emission display
Laser TV
Carbon nanotube
Quantum dot display
Interferometric modulator display
MicroLED
Multiplexed display
Swept-volume display
Laser display
Holographic display
Light field display
Volumetric display
Ticker tape
Split-flap display
Flap display
Flip-disc display
Vane display
Destination sign#Rollsign
Refreshable braille display
Optacon
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Eidophor
Cathode-ray tube
Jumbotron
Electroluminescent display
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Plasma display
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Quantum dot display
Electronic paper
E Ink
Gyricon
LED display
OLED
AMOLED
Liquid-crystal display
TFT LCD
Twisted nematic field effect
IPS panel
LED-backlit LCD
Blue phase mode LCD
Digital Light Processing
Liquid crystal on silicon
Next generation of display technology
MicroLED
Quantum dot display#Self-emissive quantum dot diodes
Organic light-emitting transistor
Surface-conduction electron-emitter display
Field-emission display
Laser TV
Quantum dot laser
Liquid-crystal laser
Microelectromechanical systems
Interferometric modulator display
Time-multiplexed optical shutter
Ferroelectric liquid crystal display
Thick-film dielectric electroluminescent technology
Laser-powered phosphor display
Electromechanics
Flip-disc display
Split-flap display
Vane display
Text display#Eggcrate displays
Fiber-optic display
Nixie tube
Vacuum fluorescent display
Light-emitting electrochemical cell
Lightguide display
Dot-matrix display
Seven-segment display
Eight-segment display
Nine-segment display
Fourteen-segment display
Sixteen-segment display
3D display
Stereoscopy
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Multiscopy
Holography
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Fog display
Monoscope
Movie projector
Neon sign
Slide projector
Transparency (projection)
Laser lighting display
Extended Display Identification Data
CEA-861
DisplayID
Always-on display
See-through display
Scan line
History of display technology
Large-screen television technology
Optimum HDTV viewing distance
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Flexible display
Comparison of CRT, LCD, plasma, and OLED displays
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