Color-conversion method for a multi-primary display to reduce power consumption and conversion time

Abstract

— A color-conversion method for a light-emitting multi-primary-color display is proposed. While amulti-primary-color display uses four or more primary colors to reproduce a wide color gamut, multiple sets of primary-color signals are needed to reproduce one color. Therefore, linear programming, which results in low power consumption, was adopted to uniquely determine the set of primary-color signals. Although a highly accurate color conversion was achieved by using linear programming with low power consumption, it requires a very long time to convert colors of high-resolution images. Therefore, by categorizing the color conversion of linear programming as a classification problem, colors are converted by using the decision-tree method, which is a classification method. As a result, color conversion with high accuracy, low power consumption, and short conversion time was achieved.