Abstract
Light-emitting diodes are inherently monochromatic light sources. However, owing to their miniature footprints, color-mixing using these devices is much more feasible compared to conventional light sources, which are many times larger in size. The ability to mix colors offers the capability of color-tuning in real time without the use of color filters. Two types are color-tunable LEDs are described in this chapter: red-green-blue stacked LEDs suitable for high-power applications and group-addressable micro-LED arrays with jet-printed red-green blue micro-pixels, suitable for monolithic integration.
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