| abstract |
A liquid crystal display cell for use in, for example, a schlieren optics projection system, constructed in accordance with the principles of the present invention, includes a pair of support substrates for supporting and containing a liquid crystal substance. A thin layer of a silane coupling agent intermediate at least one of the substrates and the liquid crystal substance comprises an orienting medium. In particular, the silane molecules react with the substrate to form a chemical bond with the molecules of the substrate. In addition, the silane molecules interact with the liquid crystal molecules in such a manner as to cause the liquid crystal molecules to assume a preferred orientational order. |