Device for displaying symbols by means of a liquid crystal matri

Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...

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340805, G09G 336

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active

047107669

ABSTRACT:
A method and device for displaying symbols by means of a liquid crystal matrix. The device comprises an automation driven by a clock which feeds cyclically to the control circuit of a liquid crystal matrix the bits representative of the elementary images contained in a random access memory. The memory has a capacity greater than k (n+m) bits, k being the multiplexing coefficient and n and m being respectively the number of lines and columns of the liquid crystal matrix. The memory is refreshed by a central computer during the interval of emission of the bits.

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