Patent ID: 6556179
Filing Date: 2003-04-29
Classification: G02F

Abstract:
A display device, comprising:a pair of light transmittable members; a display member located between said pair of light transmittable members and having a shape of a pattern to be displayed, said display member comprising a polymer dispersed liquid crystal material whose light transmittance is electrically changeable between a first state that transmits light and a second state that substantially blocks light; and a pair of light transmittable electrodes, at least one of said pair of light transmittable electrodes having a shape corresponding to said pattern, said light transmittable electrodes being respectively formed on corresponding ones of said pair of light transmittable members for electrically controlling said polymer dispersed liquid crystal material, wherein when said electrodes are turned on, said polymer dispersed liquid crystal material is changed to said first state, and when said electrodes are turned off, said polymer dispersed liquid crystal material is changed to said second state.