On September 4, the reporter learned from the Kunming Bus Group Comprehensive Repair Factory that the bus-mounted LED display road sign independently developed by Kunming Bus has submitted a patent authorization application to the relevant departments, and it is pending approval. Fang Zhijian, director of the Kunming Bus Group Comprehensive Maintenance Factory, introduced that in order to ensure the normal use of LED street signs for buses, since 2013, Kunming Bus has started to maintain and repair ordinary LED street signs. After comparing the electronic screen market, through continuous efforts and exploration Learning, independently developed a vehicle-specific LED electronic display specifically for bus vehicles. It has been tested on more than 200 buses including 72, 77, 89, 111 and 231. The reporter saw that this kind of Hengyue brand new bus car LED display street sign, only 0.766 mm between the single leaf board and the point, higher definition than the previous 1 mm LED display, and has the function of anti-UV. Increased LED display life. At the same time, the LED display can also provide various communication modes such as U disk, WIFI, 3G, etc. according to customer needs, and can quickly input display content within 35 seconds.