LED signs generally play a role in guiding the path. In front of a group of buildings with particularly good lighting and beautification, a beautiful, fashionable and innovative sign can often play a role in embellishment. Signs that integrate multiple functions such as decoration, guidance, and advertising have also become an important part of outdoor advertising.

Classification of signs by form:

1. Horizontal: The entire proportion is relatively long horizontally, and the entire surface is generally used as a sign. It can be seen on the walls of small shops and large buildings.

2. Vertical: The entire proportion is relatively long vertically, and the entire surface is generally used as a sign.

3. Protruding: Protruding on the wall of the building, except for the entire surface of the back or when there are two side walls, both sides are used as advertising carriers, such as three-sided flip signs.

4. Ground column: horizontal, vertical, and three-dimensional signs marked on certain fixed structures on the ground.

5. Roof type: refers to setting up some fixed structures on the roof of a building, and hanging or sticking plate-shaped active cube or phantom signs on it.

Classification of signs by material:

1. Smooth signs: The picture or board surface is oily and very smooth.

2. Luminous material signs: Use luminous material signs (that is, what we usually call neon lights).

3. Metal signs: In the absence of a special board surface, metal is used as the main material of the board surface or text of the sign and metal is used as the main carrier of the sign.

4. Electro-optical board signs: Use light-emitting diodes or luminous tubes to achieve monochrome or color performance effects. According to the light-emitting diodes and the performance method, it can be divided into five major categories: luminous electro-optical boards, LCDs, LEDs, CRTs, and FDTs.

Classification of signs by use:

1. Different time:

a. Lighting: For day and night use, install luminous tubes or projectors inside the signs and install lighting lamps outside the signs, etc.
b. No lighting: There is no separate purpose for day and night use, and there are no lighting facilities.

2. Different locations:

a. Indoor: Set up indoors, such as direction arrows, indoor reception, etc.

b. Outdoor: Set up in all non-indoor spaces.

3. Different purposes:

a. Commercial: Generally refers to those set up for commercial purposes.

b. Public: Set up in public places to announce news to the public or to publish certain information.

From the perspective of traffic signs:

The number of cars in the city increases by hundreds every day, and road resources are becoming less and less. For the reasonable layout of traffic signs, increased traffic monitoring, one-way streets and time restrictions, signboards are needed to remind people to pay attention. The connection and conversion between various traffic facilities are absolutely indispensable for signboards.

Location setting rules, regional sign setting rules, tourism sign setting rules, color design rules, modeling design rules Service agency selection principles Sign system design and improvement cycle Sign system supervision mechanism Comprehensive consideration, analyze the environment, understand regional culture, local customs, architectural style, urban personnel status, road conditions, citizen quality, regional conditions, number of tourists, etc. Comprehensive analysis of many factors, determine the overall plan of the city sign system, and then conduct regional subdivision.

In the layout, special emphasis should be placed on rationality: even distribution; clear and smooth primary and secondary: clear distinction; smooth and comprehensive step by step: comprehensive and comprehensive.