It looks like a hollow CRT monitor.
How does that even work?
We referred to it as Blockland's CRT because of its width.
The final product has two layers. A front layer of transparent print bricks, and a second layer of 1x1f bricks that change color and rendering.
Its designed so bricks appear and disappear immediately, without fading away like when you change colors on a simple flat 1x1f screen. The point is to create a more realistic feeling of a screen, and it allows for less events when handling the screen.