Inside a computer, numerical values of red, green, and blue define all possible colors, but what we use to reproduce that color affects the result. For example, the color cyan is 100% green, 100% blue, and 0% red. These numeric values never change, so cyan always has the same numeric value. But, how that cyan looks on the screen is affected by several factors, the most common being an uncalibrated screen.  All computer monitors incorporate small variations due to the nature of manufacturing. At BenQ, we use high-precision equipment in the manufacturing process to minimize these discrepancies. Color calibration helps reduce the impact of those discrepancies on color performance. 

*Note: X-Rite Photo & Video is now Calibrite. This is why some devices show two names.