Field spreading layer for dispersed liquid crystal coatings

A method of making a display sheet having polymer dispersed liquid crystals comprising the steps of:

• a) providing a transparent substrate;
• b) coating a state changing layer over the substrate having a first and second surface, such state changing layer having the polymer dispersed liquid crystals having first and second optical states;
• c) providing a first transparent conductor disposed over the first surface of the state changing layer and a second conductor on the second surface of the state changing layer so that when a field is applied between the first and second conductors, the liquid crystals change state;
• and
• d) coating a nonconductive, field spreading layer having polymer dispersed sub-micron particles disposed between the state changing layer and the first conductor to provide a change of state in the state changing layer outside of areas between both conductors in response to a field applied between the first and second conductors which changes the state of the liquid crystals.