The application provides a two-stage mapping method and
system for driving a 6-color module by a 1-bit
chip, acquires 6-color original image data including black, white, yellow, red, blue and green, performs neighborhood dithering
processing on the 6-color original image data, divides pixels into foreground color and
background color regions according to a weight threshold, encodes the 6-
color data into 4-color foreground encoding in the first stage, loads a matching waveform to complete yellow, red and green color display, and then performs hardware drive shutdown and
voltage retention on the
colored pixels; in the second stage, 4-color background encoding is generated for the uncolored black, blue and white pixels and corresponding drive voltages are applied, while the
colored regions are prevented from being disturbed; and stable 6-color display is realized. The application can reuse the 1-bit
chip and the existing
backplane, greatly reduces the cost, improves the display uniformity and environmental adaptability, and effectively suppresses defects such as
color mixing and residual image.