Liquid crystals are coated onto a silicon chip, which uses a reflective, aluminized layer. This reflective design increases contrast. Since it is a digital display device, LCOS also eliminates image burn in.
(LCoS) A projection display technology that places a layer of liquid crystal between a covering of glass, and a mirror-like surface covered with pixels that resides on a silicon chip. Together, they form a micro-display, commonly used in both rear and front projection televisions.
Liquid crystal on silicon (LCOS or LCoS) is a "micro-projection" or "micro-display" technology typically applied in projection televisions. It is a reflective technology similar to DLP projectors; however, it uses liquid crystals instead of individual mirrors. By way of comparison, LCD projectors use transmissive LCD chips, allowing light to pass through the liquid crystal.