What is the difference between brightness and contrast?

Answer

Brightness refers to how bright the shadows are and contrast refers to how bright the highlights are. So, for example, if you had a dark rectangle and a light rectangle on the screen, the brightness setting will affect the dark rectangle and the contrast setting will affect the light rectangle. If both brightness and contrast are set to minimum, the screen will be pure black. Brightness should be set so that black objects (like text, borders, etc) are pure black, but dark gray objects (shadows on buttons etc.) are still visible on a dark background. Contrast should be set to a comfortable setting, whatever you choose, if the monitor is too bright, turn the contrast setting down, if it is too dark turn the setting up.

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