Abstract: A large area liquid crystal display system in which all of the liquid crystal picture elements are relatively large sized and are disposed the correspondingly sized and shaped openings created between the adjacent rows and columns of a support structure. The support structure is formed of a plurality of vertical and horizontal, elongated triangular-shaped members. The triangular members are coated with a reflective material to enlarge the field of light emanating from each liquid crystal picture element. Control of light from the display is accomplished by a control lens such as a lenticular lens or a holographic lens, while control of incident light is achieved by venetian blind type materials.

Abstract: An improved apparatus for viewing transparent film prints, such as X-rays, mammograms and sonograms, is provided, which apparatus includes a light source, a viewing stage and an array of light valves to selectively prevent the transmission of light from the light source to certain areas of the viewing stage. The apparatus allows an operator to more efficiently and accurately discern detail in the analysis of transparent film prints.