Touch mode introduction and advantages and disadvantages for Infrared touch screen kiosk , Infrared touch screen kiosk adopts infrared emission and blocking principle. The touch screen consists of a set of high-precision, anti-interference infrared transmitting tubes and a set of infrared receiving tubes, which are cross installed in two opposite directions to form an invisible infrared grating. Embedded in the control circuit, it can control the system to continuously pulse the diode to form an infrared beam grid. When touching objects such as fingers enter the grating, the light beam is blocked. The intelligent control system will detect the change of light loss and transmit the signal to the control system to confirm the x-axis and y-axis coordinate values.
The touch screen is composed of infrared transmitting and receiving sensing elements installed on the outer frame of the touch screen. On the surface of the screen, an infrared detection network is formed. Any touching object can change the infrared on the contact to realize the touch screen operation.
Advantages: infrared touch screen is not disturbed by current, voltage and static electricity, suitable for some harsh environmental conditions. In addition, because there is no charging and discharging process of capacitor, the response speed is faster than that of capacitor.
Disadvantages: because the frame is only added to the ordinary screen, the infrared transmitting tube and receiving tube around the frame are easy to be damaged during use.
Post time: Mar-12-2021