PIXEL COMBINATION OF FULL COLOR LED AND WHITE LED USED FOR LED IMAGE DISPLAY AND SIGNPOST

摘要

PROBLEM TO BE SOLVED: To provide a method and a system for pixel combination of a color and white illumination apparatus for an image display screen.SOLUTION: There are provided signal processing device and method for driving one or more light-emitting diodes (LED) of a video screen, a display panel, a module, and other components. The signal processing device and method control one or more RGB-LEDs and/or white LEDs, and suppress power consumption and cost while generating light with improved uniformity and brightness. The signal processing device and method generate a matrix brightness value based on one or more input LED driving signals, generate a compensated brightness value based on the one or more input LED driving signals, generate an LED driving signal based on the matrix brightness value and the compensated brightness value, delay the one or more input LED driving signals to generate one or more delayed LED driving signals.SELECTED DRAWING: Figure 3