Abstract
The color gamut of conventional flat panel displays (FPDs) is not wide enough to reproduce all the colors from all objects. We propose a four-primary color FPDs instead of three-primary colors to expand the color gamut. To achieve four-primary color FPDs, we have developed two technologies, e. g. a scrolled light emitting diode (LED) backlighting of four colors (Red, Green1, Green2, Blue), which is synchronized with the scanning of the displays, and a two sub-frame field sequential driving. As a result, the 15-in. XGA in-plane switching mode - thin film transistor - liquid crystal display (IPS-TFT-LCD) with 122%-NTSC color reproduction has been achieved
