As flat-panel liquid-crystal displays made from amorphous silicon grow to gargantuan sizes, Hong Choi, chief technology officer at Kopin Corp., has an alternative display solution. "At Kopin, we believe that mobile video will be really big-you already have television content available on cell phones, and portable media players can store three movies in a single gigabyte," Choi said. "The only thing that is missing is a way to view a really good, large-sized image without having to carry around a big monitor." Kopin (Taunton, Mass.) offers OEMs tiny single-crystal silicon microdisplays that combine with a magnifying lens to project onto the retina an image that appears to be coming from 20- to 30-inch displays. By eliminating the need to carry a life-sized display, the microdisplays offer mobile users of cell phones and media players the same resolution as large flat panels but in a package small enough to fit into a shirt pocket.