| http://www.w3.org/ns/prov#value | - Optionally, a display element, such as a light emitting diode (LED) display element, a vacuum fluorescent (VF) display element, an electroluminescent (EL) display element, a liquid crystal display (LCD) element, or a video display element or the like, may be integrally formed at the rear surface of the reflective element substrate, such that the display information is viewable through the reflecti
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