Need to know the definition of a sign type, material and/or process? Have a read through our extensive Signs Glossary.
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Dibond®, Alupanel®
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 fluorescent 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.
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.
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’.
