Subpixel rendering

Subpixel rendering is a method used to increase the effective resolution of a color display device. It takes advantage of each pixel's composition of individually addressable red, green, and blue components adjacent on the display matrix, called subpixels, and uses them as rendering units instead of pixels.

"Aa" rendered in subpixel

The previous image, with the R, G and B channel separated and animated

Subpixel rendering is primarily used for text rendering on standard DPI displays.

Despite the inherent color anomalies, it can also be used to render general graphics.

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