A color display includes an array of light emitting pixels, each pixel having a plurality of color light emitting elements for emitting different colors of light and at least one additional light emitting element for emitting white light, and wherein the power efficiency of the additional light emitting...http://www.google.com.au/patents/US6870323?utm_source=gb-gplus-sharePatent US6870323 - Color display with white light emitting elements
