The colors red, green, and blue with a sketch of a pixel from each.Ĭyan, Purple, and Yellow: Combinations of Two ColorsĬyan, purple, and yellow are mixtures of two of the primary colors with equal intensities of each. Red, green, and blue colors are produced by exciting the respective phosphor. The colors black, white, and gray with a sketch of a pixel from each. A sample color block and a sketch of a pixel from the block is shown below for each of these three colors. ![]() Gray parts of the screen have all three phosphors producing light, but at a much lower intensity. On a white section of a screen all three phosphors are excited and produce light with about the same relative intensities as in sunlight so the light appears white. When no electrons strike the phosphors of a computer screen the phosphors emit no light and the screen appears black. The three separate phosphors produce red, green, and blue light, respectively.Ī sketch of a pixel showing the red, green and blue color produced by the three phosphors.īlack, White, and Gray: Nothing, All, or Some The phosphors emit light when struck by the electron beams produced by the electron guns at the rear of the tube. ![]() A monitor or TV screen generates three colors of light (red, green, and blue) and the different colors we see are due to different combinations and intensities of these three primary colors.Įach pixel on a computer screen is composed of three small dots of compounds called phosphors surrounded by a black mask. Color from a computer monitor or a TV screen results from a different process than that due to reflection or transmission by a solid or solution.
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