Light valve imaging apparatus and method for providing gray scale

摘要

Electronic imaging apparatus and method of the kind utilizing a light valve array including a line of discretely-addressable pixels activatable between a light transmitting and light blocking state by an electrical field features addressing of such pixels by means of a plurality of discrete sub-period activations which in combination effect proper transmission for a line of the image to be reproduced. In one embodiment the sub-period activations are of different duration and binarily related.