What produces the different colors seen on a television screen?

Answer 1

A color TV produces the three primary colors of light.

Red, Green and Blue.

If all three colors are produced (nearly equally in strength) the perceived color is White.

By varying the brightness of the three colors all colors can be produced.

Try it yourself by using a magnifying glass on a working TV. Use a black and white picture (or turn the color control down). Although you see a black and white picture at a distance, close up you will see the individual colored dots.

On an LCD TV or monitor, the three primary colors are printed as filters on a plastic screen. The light is controlled by Liquid crystal shutters, in a glass panel behind, which are controlled by the electronics. The shutters control the amount of light let through from the white Light panel behind.

The light source of the illumination panel is provided by florescent tubes or white LED's

Answer 2

All color televisions use the same technique to capture and display color images. Each image is made of three primary colors, red, green and blue. As the three colors are added together in different amounts, any color can be produced.

A television image uses a stream of data to build an image with red, green and blue values for every pixel sent one after another to create a whole image. As soon as the image has been completed, the data stream starts again to create a new image.

Modern televisions use digital data to build colors whereas older ones used analog systems to do the same job. However, the principle of color television was proved and demonstrated in 1928 by John Logie Baird and the very same principle remains in use today.

Answer 3

Because the every other color in the light spectrum are reflected. For instance if you see a red ball every other color is being reflected except for red. Television colors work the same.