Quantum dot displays are a type of television screen. They have tiny particles, called quantum dots, inside them. These particles are so tiny that millions of them can fit in one single screen. When electricity is passed through them, they make different colors of light. The colors you see on the television screen come from the light made by the quantum dots. Because the quantum dots are so tiny, they are able to produce very bright and vibrant colors, which makes your TV picture look like real life.