42 inch USB cheap open frame capacitive touch screen monitor

Our Advantages:

1.We are one of the biggest manufacturer in China. Our products have been export to over 30 

countries of the world.

2.Good material control to make sure all the material are high quality ,all the material we used  are 

Rohns compliant           

3.We can supply the good quanlity goods on the same price  with our competior.             

4.We can accept small quantity order and offer competitve price.     

5.Our product’s quanlity is over and above our rival’s,and yet we are able to sell it at the same price.   

Operation Principle:

Capacitive touch panel works through body’ current induction. When finger is on or close to touch

panel surface, due to body electric field, the user and touch panel surface forms one coupling capacitance. For high frequency current, capacitance is direct conductor, then fingers suck a small current from the contact point, through amplifying and accurately calculating this current signal, the controller works out the touch point position.