RGB pixels create yellow by combining red and green light at high intensities, while omitting blue light.
Here's a breakdown:
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RGB Color Model: The RGB (Red, Green, Blue) color model is an additive color model in which red, green, and blue light are added together in various ways to reproduce a broad array of colors. This is the standard color model used for screens like TVs, computer monitors, and smartphone displays.
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Additive Mixing: Unlike mixing paints (which is subtractive), RGB mixing involves adding light. When you add red and green light together, you perceive yellow.
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Pixel Structure: Each pixel on an RGB display consists of three subpixels: one red, one green, and one blue.
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Creating Yellow: To display yellow, the red and green subpixels are illuminated at or near their maximum intensity, while the blue subpixel remains off (or at a very low intensity).
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RGB Values: The color yellow is typically represented in RGB format as (255, 255, 0). This means:
- Red = 255 (maximum intensity)
- Green = 255 (maximum intensity)
- Blue = 0 (no intensity)
In essence, your eye perceives yellow when it receives a strong red and green light signal and a negligible blue light signal. This is achieved by the individual red and green subpixels emitting light on an RGB display.