Display device

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A display device, also known as an information display is a device for visual or tactile presentation of images (including text) acquired, stored, or transmitted in various forms. While most common displays are designed to present information dynamically in a visual medium, tactile displays, usually intended for the blind or visually impaired, use mechanical parts to dynamically update a tactile image (usually of text) so that the image may be felt by the fingers.

Here are the common types of display devices :

Contents 1 Analog electronic displays 2 Digital electronic displays 3 3D displays 4 Head-mounted display 5 Projectors 6 Mechanical types 7 Refreshable Braille display 8 Idiot lights 9 Segment displays 10 See also 11 External links

[edit] Analog electronic displays

• CRT display (earlier)

[edit] Digital electronic displays

• Electronic paper
• Nixie tube displays
• VF display
• LED displays (later)
• ELD
• PDP
• LCD (most recent)
  • HPA display
  • TFT display
• OLED (forthcoming)
• SED (forthcoming)
• Carbon nanotubes (experimental)
• Nanocrystal displays (experimental)- Using quantum dots to make vibrant, flexible screens.

[edit] 3D displays

[edit] Head-mounted display

[edit] Projectors

• Film projectors
  • Movie projector
  • Slide projector
• Digital projectors
  • Digital projector

[edit] Mechanical types

• Ticker tape (historical)
• Split-flap display (or simply flap display)
• flip-disc display (or flip-dot display)

[edit] Refreshable Braille display

[edit] Idiot lights

[edit] 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:

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

[edit] See also

• computer display
• graphical output device
• television
• Video monitor
• Times Square, where numerous display devices can be seen in use
• rollsign, the precursor to digital displays on public transportation
• Comparison of display technology

[edit] External links

• Society for Information Display - An international professional organization dedicated to the study of display technology
• Digital Intermediate - Digital Holographic display systems.
• Projection Screens - Projection Screens Come in a Multitude of Styles and Models (theprojectorpros.com)
• DISPLAX - A new technological approach to interactive displays
• displayMagazin The online magazine for displays
• The Cutting Edge of Haptics An article in MIT's Technology review about new touch illusion display technology, by Duncan Graham-Rowe.
• The International Society for Haptics
• 'Haptics-L: The mailing list for the international haptics community'
• Haptics-L Newslog The latest news and views on haptics, by Gabriel Robles-De-La-Torre

Display Technologies v • d • e
Static	Nixie tube | Split-flap display | Flip-dot display | Electronic paper
Video-capable	VFD | CRT | PDP | LED | OLED | Laser TV | LCD | DLP | LCoS | SED | FED | NED Free-space display
3D	Stereoscopic | Volumetric | Holographic
Intermittent	Film projection