Mirror driving method and apparatus of micro-mirror array

Details Mirror driving method and apparatus of micro-mirror array Mirror driving method and apparatus of micro-mirror array

1996-01-25

1998-05-05

Hjerpe, Richard

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 85, G09G 334

Patent

active

057481725

ABSTRACT:
In a mirror driving method of a micro-mirror array and an apparatus thereof, each of a plurality of mirrors is pivotally supported by hinges fixed to a substrate, and a permanent magnet is attached beneath the substrate to form a magnetic field about the mirrors. A coiled conductive layer is formed on the rear surface of each mirror to be selectively applied with current according to a video signal, and the selected mirror pivots in correspondence with the electrostatic force operative between the conductive layer to which the current is applied and the magnetic field. Thus, a light beam irradiating the micro-mirror array can be modulated according to an image, and mass production is made possible due to a simple structure which provides for a stable driving action.

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