Diffuser: In sign making this is typically a vinyl film that is applied to the back of light box faces to diffuse the light from the flourescent tubes.
Digital Signage: Signs and advertising that is usually displayed on lcd screens via computer software, much like tv screens.
Digital Printing: In the sign trade this refers to large format printing. see example
Dimensional Letter: A specification description of a letter, logo or symbol, either cut out, cast, molded or fabricated in material such as metal or plastic to create a raised condition. see example
Directional Sign: Signs designed to provide direction to pedestrian and vehicular traffic.
Directory Sign: A sign that identifies the names and locations of tenants in a building.
Double-Sided Sign: A sign with two parallel opposing (back-to-back) faces.
Double-Strike / Two Layer: Typically means printing with two layers of ink so the image is double density for illuminated and
lightbox signage so when illuminated the image doesn't appear 'washed out'.
Need to know a sign type, material or process? Scroll through our Signs Glossary.
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