LED-based backlight utilizes MicroLens(TM) technology to extract more light through to keyboard while spreading light uniformly. Diversion features can be molded directly into light guide to bend any portion of light around potential thru-hole, and LEDs can be located on edge of light guide or in middle of backlight, depending-upon surrounding geometry. For desktop/laptop keyboards, backlight thickness is 0.6-0.8 and 0.3-0.4 mm, respectively.
