An RGB screen works by additively mixing red, green, and blue light at varying intensities to create a wide spectrum of colors on the display.
Here's a breakdown of how it works:
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Additive Color Mixing: RGB (Red, Green, Blue) uses an additive color model. This means that it starts with darkness and adds light to create colors. When all three colors (red, green, and blue) are at maximum intensity, the result is white. When all three are at zero intensity, the result is black.
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Pixels and Subpixels: The screen is made up of tiny elements called pixels. Each pixel contains three subpixels: one red, one green, and one blue.
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Controlling Intensity: The intensity of each subpixel is controlled electronically. By varying the intensity of each subpixel, different colors can be created. For example:
- Full red, no green, no blue: Red
- Full green, no red, no blue: Green
- Full blue, no red, no green: Blue
- Full red, full green, no blue: Yellow
- Full red, full blue, no green: Magenta
- Full green, full blue, no red: Cyan
- Equal amounts of red, green, and blue: Shades of gray (and white when at maximum intensity)
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Creating Images: By controlling the color of each pixel on the screen, images and text can be displayed. The screen controller rapidly updates the color of each pixel to create the illusion of a continuous image.
In essence, an RGB screen manipulates the brightness of tiny red, green, and blue lights to produce the diverse range of colors you see.
