| http://www.w3.org/ns/prov#value | - It should be noted that filtering fluid 21 may be virtually any medium, including a gas, a gelatin resin, or some other fluid which may be adapted to filter light and selectively move into, and out of,the optical path.In FIG. 2, each display element includes multiple color filters, and may be capable of dynamically emitting one of plural possible colors.
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