Using a projector with a 100-inch-plus screen sounds complicated. In practice, it’s one of the easiest ways to create a true big-screen experience at home – or in your backyard – without mounting a TV ...

The short-throw TK705STi is a great-looking option for rooms too small to fit a traditional projector.

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 problem ...