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Photonic crystal optical filter, reflective color filter, display apparatus using the reflective color filter, and method of manufacturing the reflective color filter
Photonic crystal optical filter, reflective color filter, display apparatus using the reflective color filter, and method of manufacturing the reflective color filter
Example embodiments relate to a photonic crystal optical filter, a reflective color filter using the photonic crystal optical filter, a display apparatus using the reflective color filter, and a method of manufacturing the reflective color filter. The photonic crystal optical filter may include a transparent substrate; a barrier layer formed on the transparent substrate; and a photonic crystal layer formed on the barrier layer. The photonic crystal layer may have a structure in which a first material having a relatively high refractive index and a second material having a relatively low refractive index are periodically arranged so as to reflect light having a wavelength band corresponding to a photonic band gap.
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