What is LCDs?

LCDs are like colorful picture windows that can show different pictures and videos on a screen.

Imagine you're looking at a window made up of many tiny squares, each one can change color to make a whole image. That’s what an LCD, or Liquid Crystal Display, is like. It uses special materials called liquid crystals inside the screen, which twist and turn when electricity passes through them. These twists control how much light comes out, making different colors appear.

Think of it like a layer cake, there are many layers in an LCD screen:

• A backlight that shines bright white light
• Polarizers, like filters that let only certain directions of light through
• The liquid crystals that twist to change the direction of the light
• A color filter that adds red, green, and blue to make all the colors you see

When the liquid crystals twist or untwist, they allow different amounts of colored light to pass through, and poof! You get a picture on your screen.

LCDs are found in phones, TVs, and even watches. They’re like tiny windows that change their view every second!