Liquid crystal device with a positive display

Claim 1

A liquid crystal device including: a mixture of a liquid crystal, having a positive dielectric anisotropy as a host material, and a dichroic dye as a guest material, said mixture being disposed between a pair of glass substrates in an enclosed cell; each of said substrates having a transparent electrode of a required pattern adherently formed on its inner surface, at least a portion of said pattern of the transparent electrode on each substrate having a parallel-orientation film for causing orientation of molecules of the liquid crystal in a direction parallel to the plane of the substrate in the absence of a voltage applied and the remaining portions of said pattern and also the inner surface of said substrate to be in contact with the liquid crystal having a perpendicular-orientation film for causing orientation of the molecules of the liquid crystal in a direction perpendicular to the plane of the substrate in the absence of a voltage applied, wherein said parallel-orientation film does not overlap said perpendicular-orientation film, said parallel-orientation film on one substrate has substantially the same area as that of the film on the other substrate, and said portion covered with said parallel-orientation film of the electrode pattern on one substrate has a size different from that on the other substrate so that there exists, on one electrode pattern, at least a portion of said parallel-orientation film which is not sandwiched between the opposing electrodes and does not overlap any portion of said perpendicular-orientation film.