!! HOW TOUCH SCREEN WORKS !!

          

Touch screens

As we are living in the world with changing technologies. so with this changing technology the way we use internet, we use phones and many more things have been changed. In this all changes we also count how touch screens changed. And if you are reading this article their is 87.57% chance that you are reading it on touch screen device.So if you are using touch screen device you must have a question inn your mind that how does this work or you must have figured it out, if you have figured 

it out "how  touch screen works"  then also don't quit reading you may find some interesting "Nauledge"

Before knowing "how touch screen works" let us know who introduced us to this technology.

Man who invented the touch screen is  Dr. G.Samuel Hurst  and the company who introduced this technology to common man was APPLE  in 2007 with their first IPHONE.  

Their are two types of touch screens:-

1. Resistive touch screen.

2. capacitive touch screen.

                   

 

                               RESISTIVE TOUCH SCREEN  

 If you were born after 2010 their are very less chances that you have seen resistive touch screens. because they were mainly found in ATM'S and super market stores.

In resistive touch screen we have two layers of screen and these layers have small air gap. first layer  is made of metal and glass and the upper layer is of plastic. in resistive touch screen we have to press harder to make touch work, because when we press harder the upper plastic layer bends and make contact with the second layer and response to touch.

 

                          CAPACITIVE TOUCH SCREEN   

Nowdays we can find capacitive touch screen everywhere because of their good performance over resistive touch screen. the working mechanism of capacitive touch screen is different as in capacitive touch screen we don't have layers of screen in place of of that we have millions of pores on screen which are connected to each other by electric field. so whenever we make touch on screen the electric field  between pores is broken because human body is good conductor of electricity, and when the electric field breaks the censors locate the position of touch and our task is completed.

                                                              !! thanks for reading !!