Sinotectronics Infrared Touch Frame, detects and locates a person's touch gesture by using an infrared matrix densely arranged in the X and Y directions. The infrared touch screen is provided with a circuit board outer frame on the front side of the display, and the circuit board arranges an infrared transmitting tube and an infrared receiving tube on four sides of the screen, and one-to-one correspondingly forms an infrared matrix which is horizontally and vertically crossed. When the finger touches the screen, it blocks the two infrared rays passing through the position, so that the coordinate position of the touch point on the screen can be judged. Any non-transparent object can change the infrared light on the contact to achieve touch screen operation.