How does infrared touch screen detect user touch?

2024-09-14

When people talk about electronic products,it is always inseparable from the infrared.It permeate daily life.Everybody knows its use,but doesn’t know its work.And sometimes,you might think what is infrared or how does it work. Now we will take you to learn infrared touch.

20 touch points 65 inch IR multi touch screen overlay kit infrared touch screen frame6

Infrared touch panel including a complete integrated control circuit, and a set of high-precision, anti-interference infrared emitting tubes.They is cross installed in two opposite directions on the highly integrated circuit board.And they form a invisible infrared grating.And light filter strip is fixed in front of the infrared emitting tube and the infrared receiving tube thought frame.When finger or other project touch infrared touch frame ,it will block two infrared rays passing above this position,blocking the light .And the controller will judge the touch point ‘s position in touch area to get touch.In short,upper and lower infrared ways are crossed into the net .Finger touch screen and cut down the light. So the controller works by recognizing the place of where the light cut down is touched .This is how IR touch frame detect the user's touch.

Previous: What is the difference between infrared touch screen and capacitive touch screen?

Next: What are the advantages and disadvantages of infrared touch screen?