| http://www.w3.org/ns/prov#value | - Accordingly, EL displays are preferred in a use where a display of 30 inches or more in diagonal is required. [0086] The EL display using the present invention is suitable as, for example, an electronic signboard (as opposed to painted signboard) for displaying still images or text information, such as a billboard, an emergency exit indicator, a clockface adapted for use in a dim place, a road sig
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