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The Signaltron main departure board at Praha-Smíchov station, Czech Republic (2012), manufactured by Pragotron Schematic of a split-flap display in a digital clock display An animation of how a split-flap display works Flap departure board at Gare du Nord, Paris (2007) Section of a split-flap display board at Frankfurt (Main) Hauptbahnhof (2005) Enlarged inner workings of a split-flap clock
DOT-LED display of a bus Irisbus Citybus 18M (made 2004), photographed while a change is scrolling across the board Faulty dots are a typical malfunction of flip-disc displays. The flip-disc display (or flip-dot display) is an electromechanical dot matrix display technology used for large outdoor signs, normally those that will be exposed to ...
A text display is an electronic alphanumeric display device that is mainly or only capable of showing text, or extremely limited graphic characters.This includes electromechanical split-flap displays, vane displays, and flip-disc displays; all-electronic liquid-crystal displays, incandescent eggcrate displays, LED displays, and vacuum fluorescent displays; and even electric nixie tubes.
Electrically operated display devices have developed from electromechanical systems for display of text, up to all-electronic devices capable of full-motion 3D color graphic displays. Electromagnetic devices, using a solenoid coil to control a visible flag or flap, were the earliest type, and were used for text displays such as stock market ...
The display moves around two axes which are at a right angle to each other, so that the screen both tilts and swivels. This type is called swivel screen . Other names for this type are vari-angle screen , fully articulated screen , fully articulating screen , rotating screen , multi-angle screen , variable angle screen , flip-out-and-twist ...
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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.
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