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Material classification of digital signage
1. Smooth sign: The picture or board surface is oily and very smooth.
2. Luminous material signs: use luminous material signs (that is, we usually say neon lights).
3. Acrylic sign (Acrylic): A sign with acrylic material as the main material of the board.
4. Metal sign: a sign that uses metal as the board surface of the sign or the main material of the text unless the board is specially designated.
5. Electro-optical board: a sign that uses light-emitting diodes or luminous tubes to achieve monochrome or color performance. In terms of light-emitting diodes and expressions, they can be divided into five categories: luminous panels, LCD, LED, CRT, and FDT.
6. Reflective signs: signs made of reflective film have a reflective prompting effect.