make it small enough, process fast enough, and know every light source in the frame are engineering problems... ok so why is drawing black not? seems like a tot

make it small enough, process fast enough, and know every light source in the frame are engineering problems... ok so why is drawing black not? seems like a total engineering problem to me, one very easily solved by having lcd embedded in the display, or e-ink, or well the host of things we've already done to solve this problem. https://www.amazon.com/Hanslin-LCD-Transparent-Alarm-Clock/dp/B00BTTDQ6G https://www.amazon.com/Hanslin-LCD-Transparent-Alarm-Clock/d...