Solar-powered LCDs? Oh, yeah -- we've got those. Sadly, that's not at all what Integrated Digital Technologies is aiming to improve upon next week at Computex, though we still find its approach to trimming LCD weight and manufacturing costs an interesting one. If we're digesting this correctly, we're hearing that the outfit plans to create interactive displays (or iScreens) that have embedded solar cells in the TFT array rather than extra film or glass with photo sensors. The result? A cost savings of up to 30 percent in manufacturing, not to mention a rather significant decrease in weight. Without any images to go by,