1.Most laptops touch screen type

• Nowadays, the vast majority of laptops are equipped with Capacitive Touch Screen monitors. The capacitive touch display mainly uses the principle of capacitive sensing to operate, and it is equipped with a capacitive sensing array. The conductive coating on the surface of the screen forms a capacitive coupling with the human body, and when the finger touches the screen, the capacitance value of the touch point is changed, and the touch chip can accurately locate the touch position according to the capacitance change to achieve accurate interaction. Like Apple's MacBook Pro with Touch Bar version and the touchscreen of some models in the Dell XPS series, they are typical capacitive touchscreens, and the controls are smooth and smooth, whether you zoom in or out of an image, swipe a page, or tap on an icon, it can respond quickly and bring users a convenient experience.

2.The advantages of capacitive touch screen overlays determine their mainstream status.

• The reason why capacitive touch screens have become the mainstream choice of laptop touch screens is due to many advantages. First, it has high sensitivity, and the slightest touch of the finger can be accurately captured, which greatly improves the operation efficiency, such as when quickly entering text, it can achieve almost real-time feedback, reducing the probability of false touches; Second, it supports multi-touch operation, users can zoom in with two fingers, switch programs with three fingers, etc., to facilitate complex gesture operations, which can significantly improve efficiency when browsing the web and editing documents. Third, the durability is good, the surface material has been specially treated, wear-resistant and scratch-resistant, and it can maintain a good touch effect for a long time under normal use, reducing the probability of screen damage due to frequent touch, reducing maintenance costs, and prolonging the service life of the notebook.

3.The presence of a small number of non-capacitive touch screens.

• Despite the dominance of capacitive touch screens, there are a few exceptions. In some notebook computers with special scene applications, other types of touch screens will be used. For example, some rugged notebooks in the field of industrial control may use resistive touch screens for extreme environment adaptability, special signal compatibility, etc. The resistance screen relies on the pressure to make the upper and lower layers of the screen contact conductive to determine the touch position, its advantage is that it can be operated with gloves, not afraid of oil and dust interference, but the disadvantage is that the clarity and touch sensitivity are not as good as the capacitive screen, and the display effect and operation fluency are not good, but there is still a place for it in the industrial oil pollution, dust, and protective gloves need to be worn in the operation scene. In addition, in the early years, some low-budget entry-level notebooks also used relatively simple infrared touch screens for a short time, relying on infrared sensing light blocking to locate touch points, with limited accuracy, and then with the reduction of the cost of capacitive screens, this kind of screen was gradually eliminated.