Who needs to step out for a cinematic experience when you can enjoy it right at home? Smart LED projectors are transforming the way people watch movies, stream shows, or play games. Compact yet ...

In this day and age, TVs at home have grown larger, with some nearly filling an entire wall, making it seem like a mini-cinema. But houses are mostly far from the sheer size of cinemas. So the latter ...

If you had an array of high power addressable LEDs, how would you project them onto a wall? Perhaps you’d use a Fresnel lens, or maybe an individual lens on the top of each. [Joo] faced this ...