Chongqing high speed tunnel light box billboard

There are many types of outdoor billboards, including: high-speed media, subway advertising media, LED display screens, building media, bus advertising media, three-sided advertising, train media, etc. Nowadays, more and more advertising companies are paying attention to the creativity and design effects of outdoor billboard sizes. Governments at all levels also hope to establish a city image and beautify the city through outdoor advertising. These provide huge market opportunities for outdoor advertising production, and therefore put forward higher requirements. China's largest outdoor three-sided advertising billboard has a total area of ​​15,271.2 square meters, and it is also the largest three-sided advertising in the world. The world's largest three-sided outdoor billboard is located in Chongqing. This outdoor billboard has a total area of ​​15,271.2 square meters, consists of 200,000 small three-sided panels, and has a "weight" of 525 tons. It took 50 workers to work continuously for 20 days to complete the entire picture. The size of outdoor billboards varies greatly, depending on the resources of the advertising media provider, and is generally quite large. It can range from a few meters to a dozen or dozens of meters. The image size must be set according to the resolution. Generally, it is 150dpi (large-size printing) to 300dpi (small-size printing). Actual size = pixels/resolution (note that 150dpi and 300dpi here refer to pixels/inch, and it is intuitive to calculate them in millimeters). In this issue, there are three main types of billboards: small, medium and large:

"Small" billboards, the billboard area is between 1 square meter and 20 square meters, such as sidewalk light boxes, lamp post light boxes, and phone booths , car booths and other small outdoor billboards. "Small" signboards can be found everywhere. According to statistics, "small" signboards in Beijing, Shanghai, and Guangzhou are widely used in urban areas. The billboards are mainly light boxes, phone booths, and car booths. There are 5,085 such billboards in Beijing, 6,688 in Shanghai, and 6,492 in Guangzhou. It can be seen that the number of "small" cards in the three places is similar. The total number of "small" types of billboards in the three places is 18,265, accounting for 86% of all types of billboards in the three places. "Medium" type signs, the area of ​​billboards is between 21 square meters and 249 square meters, such as medium-sized billboards on roofs, building sides, pillars, etc.; "medium" type signs are mainly distributed in various buildings, bridges, etc., with an area of Big, good location. According to monitoring data, there are 912 brands in Beijing, 641 in Shanghai, and 1,159 in Guangzhou. Among the three places, Guangzhou has a relatively larger number of "medium" brands. The total number of "mid" boards in the three places is 2,712, accounting for 13% of all types of billboards in the three places. "Large" signboards are billboards with an area of ​​more than 250 square meters, such as super-large advertising signs distributed on the roofs of large buildings and roadsides; "large" signboards are huge in area and are often distributed on the roofs of buildings, on the sides of buildings, etc. Because of the huge area, the number of "small and medium" cards is relatively small. In Beijing, Shanghai and Guangzhou, the total number of "big" brands is not large. Beijing has 56, Shanghai has 106, and Guangzhou has 51. The total number of "large" signboards in the three places is 213, accounting for 1% of all types of billboards in the three places.