Depending on the application, the light source may be placed on the sides of the display or behind it. Variations of backlight surface construction also exist for producing a smooth light distribution. The type of construction depends on size, efficiency of sources, and production cost considerations. The BRO engineering team considers these and other factors involved in your product to design a system that is innovative and cost-effective. The BRO team created many of the advanced panel illumination systems that are in products you use today.
Various methods call for different sources and different surface structures for the panel.
Thin panel displays are illuminated from the sides rather than from behind to save space. Fluorescent tubes or LEDs are used as the sources. The drawing at left shows fluorescent lamps at each end of a hollow light spreader. The spreader is made of a transparent medium that was roughened to disperse the light evenly. The spreader's rounded ends are concentric with the tube's surfaces.