"The PES-LCD technology opens the way to make portable equipment smaller, lighter, and more robust, and also provides possibilities for making displays large enough to cover walls," says Dirk J. Broer, professor of polymer chemistry at Eindhoven University of Technology and a research fellow at Philips Research Laboratories, Netherlands. The formulation, which contains a blend of liquid crystals, a mixture of monomers, an ultraviolet-light-absorbing dye, and a photo initiator, can be painted onto a variety of substrates using standard coating technology. Liquid crystal displays (LCDs) are currently made by sandwiching a liquid crystal between two pieces of glass, but Dirk Broer and colleagues has shown how to make an LCD that is more like an open sandwich. They used ultraviolet light to trap a thin film of liquid crystal between just a single piece of glass and a layer of polymer.