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 direct sunlight. Flip-disc technology has been used on buses across North America and Europe. It has also been used extensively on public information displays. A few game shows have also used flip-disc displays, most notably Family Feud from 1976-1995. (Eggcrate displays were used from 1999-2006, and LCD screens since 2002.)
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“The LORD brought us out of Egypt with a mighty hand and an outstretched arm, with a terrifying display of power, and with signs and wonders; and he brought us into this place and gave us this land, a land flowing with milk and honey.”
—Bible: Hebrew, Deuteronomy 26:8.