Mystery of the mechanism of the touch screen

 Touch screen is adopted to the most of a smartphone used in Japan now.
 People using the smartphone operate smartphones by a touch extremely commonly. However, I noticed that I did not know what kind of mechanism touch panel was.the theme of this article is about structure of the touch screen.



 Touch screen has the kinds such as Resistive or Surface acoustic wave,  "Projected capacitance" is adopted to a current high-performance smartphone.

 This screen is located the layer of the transparent electrode which is seted by a specific pattern on a substrate layer equipped with an operation processing IC in large quantities and, about the internal structure,is repeated covers (insulator) such as glass or the plastic on the surface.
 The capacitance between plural electrodes changes at the same time when a user brings a finger close to the surface of this, but  it is highly precise and can pinpoint the position by measuring the ratio of this electric flow quantity.

 Projected capacitance has much number of electrodes, and what can perform accurate many check appearance (multi-touch) features it.
 This is operated only with an exclusive touch pen in response to a capacitance method other than the finger, and it is necessary for the point that is easy to be affected to be careful when there is a metal housing near a point not to be able to treat with a user wearing gloves.
 
There are the accessories to perform the touch of the smartphone other than a finger."The smart pick" is a pointing device to perform the screen operation of the smartphone. It is a characteristic that this kind of product is often in the shape of a pen, but do not usually interfere because the smart pick has a shape of pick used with a guitar. I am available as a cleaner to wipe when I attach it to the smartphone as a strap and can put it, and the screen of the smartphone was stained. Even if the main body weight hangs it because it is only 6 g, I am not obstructive.It is recognized that a user touches a screen in pocket pick in substitution for a finger surely. There is not the worry to be lost if a user ranks a smartphone because it is a strap type.


In addition, the touch operation of the smartphone has the unique name.

*Tap
With the tap, criticize a touch screen with a finger slightly once.
By the most basic operation of the smartphone, It is used it for start of the application or the change of the screen.
It is"the click" when itis said by the operation of the PC.

*Frick
With the flick, it is mentioned a touch screen with a finger, and slide it lightly.
When a user lets time and the screen that a user moves a screen to next scroll early below, it is used.
With the smartphone, the character input by the flick is becoming mainstream.

*Pinch in/Pinch out
The pinch in is operation a user changes a touch screen to pick up with two fingers, and to reduce a screen. The pinch out is the reverse. It is operation to let I move it so that a user opens it with two fingers and enlarge a screen.
When expansion wants to reduce image and map, web page, a user uses it.


I thank for a great technique and want to manage a touch screen.