In a luminous display system incorporating optical fibers, through-holes are formed in a display screen so as to form an equispaced rectangular grid. Each optical fiber is provided with an input and an output terminal. The output terminals are embedded in the through-holes while the input terminals of the optical fbers are attached to an input section. The input section has a rear surface on which an image is projected. Arrangement of the input terminals on the input section is the same as that of the output terminals at the display screen an area of which is equal to or more than that of the input section. A liquid crystal display panel is interposed between the input section rear surface and a light source. The light source projects light through the liquid crystal display panel and a lens, the light then being reflected from a reflecting surface to the rear surface of the input section, so that an enlarged display pattern is formed on the display screen through the optical fibers.