There is provided a liquid crystal display device including a display screen comprised of a plurality of areas in each of which a pixel pattern is formed, wherein any two areas located adjacent to each other, among the areas, have at least two stitches therebetween. Slidable seals having different areas are used to apply an axial force to a shuttle in the valve in response to differential pressure across the valve when in the closed position. The system permits users to customize the web site interface such that each user can view a customized web page. The light source system includes one or more electronically controllable light sources and further includes optical switches or other arrangements for coupling the light sources to the optical fibers or other light guides of the light guide system.