25.1: Invited Paper: Development of Wide‐Color‐Gamut Mobile Displays with Four‐Primary‐Color LCDs

We developed a multiple color LCD with pixels composed of red (R), blue (B), yellowish green (YG) and emerald green (EG) sub pixels, combined with a white LED backlight. The color gamut was extended to 105% of the NTSC standard. Also the 3- to 4-primary-color conversion algorithm using the three-dimensional look-up-table (LUT) is described with the color reproduction characteristics for driver-integrated circuits on mobile LCDs.