Effective color resolution of a limited-memory color-mapped display system such as a portable liquid crystal display (LCD) handheld video game system can be increased by changing the color mapping information during active display time (e.g., during the horizontal blanking interval between rasterization...http://www.google.de/patents/US7050064?utm_source=gb-gplus-sharePatent US7050064 - Method and apparatus for displaying higher color resolution on a hand-held LCD device
