In the digital age and the popularity of smart cities,I can find the existence of full-color LED display in my daily life and work,which is favored by the majority of users as an important media for information release and advertising.In addition to conventional LED display,in recent years,a new type of product is gradually expanding its application field.That is LED display products with transparent effect,the more common LED transparent screen,LED grille screen and LED film screen products,which get rid of the traditional LED display bulky body,lightweight,ultra-thin design so that it can be used in more scenes.For example,supermarkets,glass Windows,car franchises,jewelry stores and large office scenes.