There are two kinds of techniques for making billboards: traditional techniques and modern techniques.

1. The traditional craft generally refers to carving and inkjet production, but now the craft generally includes plastic light box production and LED billboard production. From a global perspective, acrylic advertising signs are the most widely used.

2. For example, Teliwu Home, McDonald's fast food restaurant, etc., she is not only beautiful and generous, but also has good night vision effect and relatively low price. There are many kinds of advertising signs.

3. Generally, there are acrylic characters, copper characters, titanium characters, stainless steel word and other metal characters, resin word, plastic characters and other luminous characters, plastic light boxes, LED light boxes, LED display screens, inkjet printing, stainless steel light boxes, guide signs and so on.

4. Billboards refer to all outdoor media that convey advertising information. The media size depends on the actual environment. The pictures of advertising signs can be drawn by hand, made by computer or printed on paper.

The function of billboards:

1. Convey information and communicate production and demand. Advertisements can help consumers to know and understand the trademarks, functions, uses, methods of use and maintenance, places and methods of purchase, prices and other contents of various commodities, thus playing the role of transmitting information and communicating production and sales.

2. Stimulate demand and increase sales. A good advertisement can induce consumers' interest and feelings, arouse consumers' desire to buy the goods, and promote consumers' buying action.

3. Introduce knowledge and guide consumption. There are many kinds of modern production, and new products emerge in an endless stream. However, it is difficult for people to buy what they need in time because of scattered sales every month. Advertising can guide consumption by introducing commodity knowledge.