The rapid development of science and technology, and the impact on the mobile phone market is also very far-reaching. In recent years, the pace of mobile phone products has run into the touch era, and more and more touch phones appear in the streets and alleys. With the maturity of touch technology, touch screens are gradually divided into several categories.
Since the iPhone's first use of capacitive screens, resistive screens that rely solely on pressure have gradually lost their monopoly. More and more mobile phones now use capacitive touch screens. When choosing a mobile phone, many high-end players also consider whether the mobile phone uses a capacitive screen or a resistive screen as one of the important considerations.
Touch technology is all over the streets
However, it is difficult for the average user to have a thorough understanding of the two screens. Why do high-end players have such considerations? What is a resistive screen? What is a capacitive screen? What is the difference between the two screens? So today I take this opportunity to introduce the difference between these two screens, and I hope to be able to give some hints to friends who plan to choose a touch screen mobile phone.
Page 2: The structure and working principle of the resistive screen
The structure and working principle of resistive screen
First of all, the resistance screen is divided into four-wire type and five-wire type, but we often see four-wire type and five-wire type, and the working principle is almost the same. The biggest difference is that its accuracy will be different after being affected by external forces.
In addition, because the resistive touch screen requires a certain amount of pressure, the surface material will wear out for a long time, or the upper and lower layers lose elasticity and cause the problem of poor contact, which will affect the normal service life of the product.
Page 3: The structure and working principle of capacitive screen
The structure and working principle of capacitive screen
After understanding the working principle of the resistive screen, let's take a look at the structure and working principle of the capacitive screen.
In fact, the capacitive screen and the resistive screen have two upper and lower layers, but the difference is that the capacitive screen does not react through the collision between the two layers. Basically, the capacitive screen uses the lower layer to transmit signals to the upper layer. When the upper layer is contacted by the conductor, the lower layer can receive the information and make calculations. Therefore, the two layers of screens do not need to be in direct contact, only the information received by the lower layer is used and calculations are made to determine the position of the finger touched. It is precisely because of this that the capacitive screen can not only support multiple points at the same time, but also greatly enhance the sensitivity of touch. Since the human body itself is a conductor, the capacitive screen can react when a finger touches the screen.
