An inventor from Taiwan presented at the Nuremberg IENA Invention Fair 2013 his invention: Image wall. The invention consists of image wall made of cement material (outdoor used) and PU material (indoor used). Its resolution is higher than LED screen. Each matter square is 40,000 pixels and strength is 6,200 pounds for each inch square. It can replace any large screen just as LED board. Only 6.2 % power need as LED board at the same area and there are not any maintenance costs.