I remember doing work experience at Philips Research Labs back in the mid nineties and they were working on a similar concept back then - a monitor that doubled as a flatbed scanner. It was based on an lcd monitor, with small gaps between pixels to allow light to pass through to the scanner at the back. The big challenges were getting the focal depth right, and avoiding refraction(?) patterns after the light had passed through the screen portion.
They seemed to have gotten roung that problem by placing the photoreceptors and lcd pixels at the same level. Can't wait to see a monitor sized one.
The only reason I still have a Windows PC at home is for gaming. DirectX 10 support is a step closer to me being able to get rid of it. Can't come soon enough, and I'm happy to pay for it if that's what it takes.
He has not acquired a fortune; the fortune has acquired him. -- Bion