A decade ago, the first Arduino projects featuring addressable RGB LEDs came on the scene, and the world hasn’t been the same since. Now we have full wall video displays with WS2812s and APA102s ...

The Bravia 9 is a mini-LED TV, which means there are lots of tiny lights. The light emitted by those glorified light strips goes through a diffuser layer so the light gets spread out.

The LCD TV has a lot of layers. There’s a diffuser, a polarizer, a color filter, and lately a quantum-dot layer. There are a bunch more, too, but the layer I want to hone in on right now is the ...