How do tv's show color?

Answer 1

When producing an image, your color television will use three images. One is a monochrome of red, one is a monochrome of green, and one is a monochrome of blue.

Nowadays, some TVs use different technology to achieve the same thing. LCD televisions use a type of lamp called a CCFL which shines white light out of the television. Selective filters in the television unit strip this white light down to specific colors on parts of the television (and different amounts of light/dark) to produce the image you see.

A plasma television places 100,000s of plasma cells between two sheets of glass. These cells contain three different colored phosphors--red, green, and blue--that are excited by the cell, then emit their color. Each of these cells produces part of the colored picture you see.