At present, the display system has long been an indispensable part of the editor's work of food, clothing, housing, transportation, and it has changed our daily life to make it more convenient and efficient. There are many types of touch screens. The key is divided into capacitive touch screens and resistor touch screens. Capacitive touch screens are more common nowadays.
Xunrui capacitive touch screen has been widely used as a kind of human-machine friendly industrial touch screen. Capacitive touch screens have low power, long service life, and stable operation, and are warmly welcomed by the sales market. Various capacitive touch screen products have been released one after another.
The surface capacitive touch screen uses only one layer of ITO. When the finger touches the screen on the surface, a certain amount of positive charge will migrate to the body. In order to recycle this positive charge, charge the battery from the four corners of the display. The battery charge in each direction is proportional to the distance between the contact points, so that the editor can calculate where the contact points are.
In general, the ITO coating of surface capacitors must be applied with linearized metal electrodes around the display screen to reduce the damage of the corner/edge effect to the electrostatic field. Sometimes there is also an ITO shield under the ITO coating to shield noise. Surface capacitive touch screens must be calibrated at least once before application. Today, I will share the advantages and disadvantages of capacitive touch screens with everyone.
Advantages of Xunrui capacitive touch screen:
1. The actual operation is peculiar. The capacitive touch screen supports multi-point touch, and the actual operation is more vivid and challenging.
2. It is not easy to touch the screen. Since the capacitive touch screen requires the body's current to be sensed, the body can carry out actual operations on it, and there will be no relative relationship when touched with other objects, so the possibility of touching the screen is basically prevented.
3. High wear resistance. Compared with the resistive touch screen, the capacitive touch screen has a stronger response in the aspects of anti-fouling, moisture-proof and abrasion resistance.
