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== Mechanical types == * [[Ticker tape]] (historical) * [[Split-flap display]] (or simply [[flap display]]) * [[Flip-disc display]] (or flip-dot display) * Vane display * [[Destination sign#Rollsign|Rollsign]] * [[Refreshable braille display|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.
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