The signs are the signs marked for visual effects. The concept should be called plate signs (signboard). Plate signage form called signs, and later through the East-West exchanges, and gradually have real signs noun meaning. Signs of morphological classification, horizontal: the proportion of lateral long. Generally the entire surface are used as signage. Generally in the wall of the small shops and large buildings can be seen. 2, vertical: entire proportion vertical Compare longer. Generally the entire surface are used as signage. 3, projecting shape: projecting in a wall of a building, in addition to the entire surface outside of the back or side wall of the case on both sides are used for advertising carrier identification signs. For example, the three sides signage. 4 to cylindrical: a cross-shaped mark on certain fixed structure of the ground, vertical-shaped, three-dimensional shape of the logo signs, roof type: set some fixed structures on the roof of a building and hung in the above or close to the plate-shaped living cubic phantom logo signs. Signs classified by material, smooth signs: the screen or board oily, very smooth. 2, luminous signs: the luminous material plates (that is, we usually say that neon). 3, acrylic quality signs: acrylic materials to do the main material of the plate surface. McDonald's quality acrylic signs "! 4 metal subscript Signs: In the case of not particularly specify the plate surface, the signage plate metal as primary or text material and marked with the metal as the main carrier. 5, the electro-optic plate signs: light-emitting diode or luminous tube monochrome or color performance results. Light-emitting diode and manifestations can be divided into five types of luminous electro-optic board, LCD, LED, CRT, FDT.