What is the difference between resistive touch screen and capacitive touch screen? Please describe the performance and quality in detail. thank you

The application environment of resistive touch screen and capacitive touch screen is different, and the principle structure of resistive touch screen is to generate touch by pressing. So the upper layer is soft before pressing, also called soft screen. The factory technology of the resistance screen is 183, the middle four digits are 2005, and the last four digits are 9375. . . . . Capacitive screen is a hard screen, which directly conducts the static electricity of human body to produce touch. You can also use a capacitive stylus instead of fingers, and the capacitive screen supports ten-point touch. The resistance screen is only a single touch;

There is a difference between the two methods of operation. People often tell jokes that they bought an iphone and lost their stylus. Its connotation is that the stylus belongs to the resistance screen. Resistance screen is a pressure sensing operation mode, and any object can be sensed as long as it bends on the screen surface. Capacitor screens work in different ways. When the user touches the capacitive screen, the human body electric field of the user's finger forms a coupling capacitance with the working surface. Because the working surface is connected with high-frequency signals, the current absorbed by fingers is very small, and the current flows out from the electrodes at the four corners of the screen respectively. Theoretically, the current flowing through the four electrodes is directly proportional to the distance from the finger to the four corners. The controller obtains the position by accurately calculating four current ratios. Therefore, the capacitive screen is operated by human touch and does not need to be pressed. The following figure shows the working principle of capacitive screen.

Surface hardness. Because the surface of the resistance screen needs bending induction, the hardness is low, that is, it feels soft when painted. Generally, the outermost layer of capacitive screen is glass-lined, which is smooth and hard. This is a difference.

Then there are surface scratches. In fact, for high-quality capacitive screens, the film is only used to prevent fingerprints from being printed on it, and it can be used without film. However, resistance screens generally need film protection, because the screen itself is fragile, and it is easy to break and scratch too much without film protection.

Reaction speed. Friends who have played with a cottage machine or a resistance screen to cut fruit must know that its response speed is a bit slow. The response speed of high-end capacitive screen is very fast, only a few milliseconds.

Multi-point control, although not all capacitive screens are multi-point control. However, there is also a conclusion that not all single electronic controls are resistance screens, and multi-point controls are basically capacitive screens. Multi-point control technology makes the operation of capacitive screen more convenient and optional. This is also one of the great advantages.

Finally, compare the universality of application. Resistance screens used to be very popular in cottage machines. With the disappearance of knockoffs, resistance screens are now only used for low-end tablet computers. Capacitance screens are divided into different levels, which are suitable for all levels of mobile phone tablets. So now the capacitive screen is more mainstream.