okay ... I have a bias , and I 'll admit it . I be a engineer by trade , and I have work on the design of Picoprojectors for 3M . so I know what go into they all the way down at the silicon level . there be several approach to get pixel up on a screen use as little power as possible -lrb- mostly have to do with how you turn the LED 's in the `` lamphouse '' on and off more quickly than the eye\/brain can notice that they be flash -rrb- . there be also way in which you can turn they on sequentially in red , green , and blue to illuminate what be actually a monochrome display module -- and then let the brain reassemble the three mono-colored image into the full color picture you think you see . what differentiate this projector from a number of other on the market be the amount of time 3M put into ask a fundamental question a lot of other people do not : `` how be the human eye and brain combination -- which be a part of the system -- stimulate most effectively by light so that the perceive quality of the overall picture be highest ? '' I should note that I be not a 3M employee , I be part of a engineering consulting business that do work with 3M . -lrb- a great company to have as a client , btw ... -rrb- but I have do video system design for dozen of people over the year . and 3M have they act together on this project to a greater degree than just about anybody I can think of .