Display having gradient response pixels

摘要

A display includes a plurality of individually electrically controllable pixels. Each pixel has a layer of light controlling medium extending over a predetermined area of the pixel. The light controlling medium is responsive to electrical fields directed through the area of the light controlling medium for controlling the light passing through the pixel as a predetermined function of the magnitude of the electric field. Each pixel has an electric field directing arrangement for directing an electric field through the layer of light controlling medium of the pixel. The electric field for each pixel is controllably variable over the area of the light controlling medium of the pixel such that the light passing through the area of the light controlling medium of the pixel is controlled in a manner that varies over the area of the pixel depending on the variable electric field.