US Patent 7446675 Solid state avionics display instrument

A solid-state electronic avionics display instrument includes a needle-like display mounted within a housing in a manner that emulates the manner in which prior electro-mechanical needle indicator mechanisms have been mounted in such housings so as to indicate a value along an arcuate scale. New aircraft can be fitted with such instruments initially, while existing aircraft can be retrofitted with such instruments to replace existing electro-mechanical mechanism-based avionics instruments.