The product is simple and atmospheric, the overall splicing sense, breaking through the traditional form of the original product from the visual experience, pulling into the distance between people and equipment. The ultra-thin design makes it easy to be competent for wall installation, also gives it higher convenience, greatly improves the installation efficiency of workers, and also greatly reduces the packaging and transportation cost. The built-in handle, lock and connecting piece can ensure the splicing flatness and gap during installation, and can also improve the installation and maintenance efficiency of the product.