Apparently, the Callme Prism is a phone-number-displaying LCD intended for those times you’re in your car, stuck in traffic or at a red light, and you see an attractive girl pull up beside you.

As you can see, there are many elements that go into making an LCD display and there are a considerable number of layers involved. Good energy efficiency and battery life. Excellent natural color ...

But those displays can actually be made in a number of different ways ... By far the most common display type today is the LCD, or Liquid Crystal Display (so yes, the title LCD display is redundant).

As you may have guessed, this is a fairly simple build, consisting largely of a Raspberry Pi, a speaker, and a screen — a 5″ HDMI LCD display to be exact. Seems like a nice size for cats.