The RS1 projector is a three chip LCOS design. JVC has been marketing LCOS technology projectors (LCOS is a type of LCD display, LCOS standing for Liquid Crystal On Silicon. LCOS is a reflective technology, like DLP, whereas traditional LCDs are transmissive (light passes through them). JVC has been selling LCOS projectors for many years under their D-iLA trademark. Some Sony projectors, like the VW50 Pearl, and VW100 Ruby, are also LCOS, although Sony calls their version SXRD.