Head-Up Display Pixel Layout for Windshield Chromaticity Compensation

The patent applies local quality by configuring different light-emitting units with different peak wavelengths according to their specific positions in the display panel. Light-emitting units in different regions (first, second, third, and fourth regions) are assigned different peak wavelengths to compensate for the varying reflection angles and path lengths that occur at different positions on the windshield. This localized adjustment ensures that each region emits light with the appropriate chromaticity characteristics, thereby reducing overall chromaticity differences across the displayed image while maintaining driving safety.

The patent implements parameter changes by varying the peak wavelengths of different light-emitting units based on their positional parameters. Instead of using a uniform wavelength for all light-emitting units, the system adjusts the peak wavelength parameter according to the specific position of each unit on the substrate. This parameter adjustment compensates for the physical changes in light reflection angle and path length that occur when light projects onto different regions of the windshield, thereby maintaining color accuracy while enabling broad driver visibility.