5.2: Photonic Crystal Display Materials

Opalux Incorporated has developed a technology called Photonic Ink P‐Ink. P‐Ink comprises an active photonic crystal which reflects a band of color that can be tuned by controlling the applied current or voltage. All the individual spectral colors in the visible range can be reflected by a single P‐Ink material. This provides an opportunity to create a wider range of primary colors than the conventional RGB system given the same numbers of pixels for color mixing. Other performance characteristics of P‐Ink technology such as high reflectivity, fast switching speed, and low power consumption also suggest a promising candidate for next‐generation full color reflective display applications.