120-inch touch integrated machine has dimensions of 46, 47, 50 and 55. At present, most touch screens are infrared touch screens, nano touch screens and capacitive touch screens (capacitance principle). The mainstream sizes of touch integrated machines in the market can be divided into: 10 inch, 15 inch, 17 inch, 19 inch, 2 1.5 inch, 32 inch, 43 inch, 49 inch, 55 inch, 65 inch, 65 inch.