system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do Liquid Crystal Displays (LCDs) work?
gpt
Basically, there is a backlight behind everything. Infront of the backlight are 3 layers of 'pixels', red, green and blue. Each pixel in each layer allows light (from the backlight) through when a electrical current is passed through (or in some cases, not passed through). These colours 'mix' and through the help of a polarising filter you get what you see on your monitor.