Global Shutter Imaging Pixels With Color-Specific Saturation Charge

The patent applies local quality by differentiating the saturation charge quantity of the photoelectric conversion portion between pixels based on their color information (R, G, B). Each pixel type is assigned a specific saturation charge quantity that corresponds to its color sensitivity characteristics, thereby maintaining accurate pixel output ratios while implementing global electronic shutter operation. This resolves the contradiction by locally optimizing charge accumulation for each pixel type rather than using a uniform saturation level across all pixels.

The patent implements local quality by assigning different saturation charge quantities to pixels based on their color information. Red, green, and blue pixels have different saturation levels that match their respective sensitivity characteristics. This allows synchronized exposure timing across all pixels while preventing color distortion, as each pixel type accumulates charges at the appropriate level for its color channel.

The patent applies parameter changes by dynamically adjusting the saturation charge quantity parameter based on pixel color information. Instead of using a fixed saturation level, the system varies the charge accumulation threshold for each pixel type (R, G, B) to match their sensitivity characteristics. This enables extended exposure periods for capturing moving subjects while maintaining accurate pixel output ratios through color-specific parameter optimization.