| http://www.w3.org/ns/prov#value | - The reflective material can comprise a metal such as chromium or a white material such as a plastics material or paper.To ensure a uniform color and or color temperature of emitted light the phosphor material 16e is provided as a substantially uniform layer on the light emitting display surface of light guiding element 14e in a pattern to define the shape of the light emitting display element.
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