That's such a good idea, and it's just the sort of inventive thinking that I really like hearing: the problem is obvious and anybody that knew anything about DL

That's such a good idea, and it's just the sort of inventive thinking that I really like hearing: the problem is obvious and anybody that knew anything about DLP's should realize that they can very rapidly control the illumination of any pixel, but who would come up with the idea of controlling light like that!