Touch Screens

INTRODUCTION

                         As you know that touch screens have been the most useful and one of the best technology in the world today. But have you wondered the science behind it? How in the world does it work. Well I will tell you all the hidden secrets on touch screens. Touch screens are electric visual displays that allow people to interact with the visual on the screen rather than using a device like a mouse for a computer. They are designed to react to the touch of a finger. Each touch screen works differently. Resistive touch screens systems use two thin metallic layers are seperated by spacers. An electric current runs through the two layers. When the screen is touched the two layers make contact on the exact same spot where the screen is touched. This creates a new electrical field which the device's computer operating system can understand. So basically when the two metallic layers create a new electrical field by the touch of the finger which it's system can understand. Capacitive touch screen systems has an special layer that stores an electrical charge. When the screen is touched some of the electrical charge is transferred to the user. For this type of touch screen to work some of the electrical charge has to be able to be transmitted to the user. The touch screens computer operating system can determine in this change in electrical charge where the screen is touched. Beware this type of touch screen can not happen when you wear gloves that block the electrical charge. Surface acoustic wave touch screens are transducers and reflectors to measure changes in the reflection of ultrasonic waves caused when the screen is touched. These systems are advanced and offer the clearest picture on the screen. Technology has advanced greatly over the years and touch screens are one of the most popular advances.

MY OPINION

                         In my opinion I think that touch screens are a really cool advance in technology. I think this because it's amazing to control a device just by your finger. How cool is that! I think that people will like this topic because a lot of people have touch screen phones and they would like to know how their touch screen phone work.

TOP 10 CITES FOR MORE INFORMATION

10. mentalfloss.com/article/31378/how-do-touchscreens-work

  9. http://www.touchscreensolutions.com.au/resources/faqs/how-does-a-touch-screen-work.html

  8. http://www.dawar.com/touch-screen-tools

  7. engineering.mit.edu/ask/how-do-touch-sensitive-screens-work

  6. apcmag.com/inside-touch-how-touchscreen-technologies-work.htm

  5. matterchatter.wordpress.com/2012/06/16/how-does-the-iphone-touchscreen-work

  4. computer.howstuffworks.com/question716.htm

  3. www.abc.net.au/science/articles/2013/08/21/3830267.htm

  2. en.wikipedia.org/wiki/Touchscreen

  1. www.computerworld.com/s/article/9231961/How_it_works_The_technology_of_touch_screens?

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CONCLUSION

                         So do you guys know now how touch screens work? Give me an example of a touch screen phone on the comments below. I think that touch screens are great.