When the fingers on the metal layer, the electric field interactive panels for education due to the human body, users and industrial touch screen surface formed by a coupling capacitance, for high frequency current, capacitance is directly conductor, so the fingers from the point of contact suck a small current. The current points out from the touch screen on the four corners of the electrode, the four electrodes and the current is proportional to the finger to the four corners, the controller based on the four current ratio of precise calculation, it is concluded that the location of the touch point.
Touch screen control in the high resolution of the former interactive touch screens education industrial touch screen resolution is such technical problems as low touch is restricted, but with constantly send a display technology, industrial control touch screen touch transmittance and resolution obviously had the very big enhancement. Can be realized at present is 1080 * 1920 resolution, even higher. Industrial control touch screen touch sensitive, supporting industrial gloves to touch touch screen control in the capacitance and resistance of two kinds of touch, but now more USES capacitive touch, the touch sensitive, support highly intelligent recognition, and support a variety of industrial gloves, medical gloves, wet hands touch and so on. And can enhance explosion-proof function.
Industrial design touch screen machine is compact, low power digital interactive whiteboard consumption, active cooling, mute design, at the same time also configured with a highly reliable industrial control touch screen machine industrial power supply, can under the condition of overvoltage and overcurrent protection industrial touch screen machine. Industrial control touch screen is now used by many terminal products display touch device, usually when we are looking for LCD manufacturers are looking for display and touch screen can be set to provide best company, because it could save a lot of problems.
Industrial control touch screen is all-in-one equipment used in industrial interactive panel board Settings, is widely used in industrial automation production line, industrial robots, wisdom, factories, medical industry, business, self-service terminals and other fields. Industrial control and touch screen machine and ordinary commercial tablets are similar on the function, the main difference is that the touch screen control in the all-in-one demanding work environment, to be dustproof, waterproof, seismic explosion-proof, high and low temperature resistance, resistance to electromagnetic interference, and other functions, and ordinary digital touch screen board commercial tablets do not have these features. Touch screen on the touch screen, industrial touch screen machine is a kind of can receive touch the first input signal of induction type liquid crystal display device, usually combined with LCD touch-screen display device. When graphical button on the touch screen, the screen of the tactile feedback system according to the programmed in advance, program drive all kinds of connecting device, again by liquid crystal displays create audio effect. Mainly used in information consulting terminal, multimedia teaching, industrial control, etc. Have reaction speed, saving space, easy communication, etc.