How do LED panels work?

LED panels come in a lot of shapes and forms; you have OLED, AMOLED, LCD, and a lot more variations of each of these. These panels work by using subpixels to mix colors together.

Subpixels are the underlying colors of your monitors, which are red, green, and blue, often shortened to RGB.

These RGB values can be combined into any color imaginable.

Figure 12.2: RGB mixing

Not all devices use RGB though; most printers use Cyan, Magenta, Yellow, and Key (CMYK) color mixing, since mixing light and mixing dyes work differently.

LED panels work by dimming and brightening each of these R, G, and B subpixels to create the desired color. In Figure 12.3, you can see how LCD pixels are arranged.

Figure 12.3: A subpixels array

Now that we know how an LED panel works, we can start making one in Blender using Geometry Nodes:

1. Let’s start by opening a brand-new Blender project.
2. Head over...