The capacitor pen coil not only effectively prevents damage from hard objects to the phone screen, but also has high practicality and sensitivity. The capacitive pen coil has a high cost performance ratio and occupies a very large market share. But many people don't understand the difference between a stylus and a capacitive pen with a coil. The conductive wire coil of the capacitive pen can be used for capacitive touch screens. Some capacitive pens have anti misoperation and pressure sensing functions, which can achieve more precise operation and reduce touch delay.
The difference between a stylus and a capacitive pen is that the body of the capacitive pen has static electricity, while the capacitive screen itself has the technical characteristic of inducing static electricity, so the coil of the capacitive pen is suitable for capacitive screens; A regular stylus, suitable for resistive screens when pressed against the screen. In addition, the coil of the capacitive pen is a pen made of conductive material, used to touch the capacitive screen and complete human-machine dialogue. A capacitive pen is an auxiliary device that uses conductive materials to mimic the human body (usually fingers) to complete human-machine dialogue. A stylus is a small pen shaped tool used to input commands to touch screen devices such as computer screens, mobile devices, and drawing tablets. Users can select files or paintings by clicking on the touch screen with a stylus.
Although capacitive screens have a lightweight appearance, they are actually composed of multiple layers of glass screens, usually four layers of composite glass. However, with the development of technology, this area of technology is also constantly advancing. In addition to the outermost layer being a protective layer, conductive material is uniformly coated between the inner layer and the glass gap, allowing the ITO coating surface to conduct electricity, with electrodes distributed on the four legs of the glass. When a person's mobile phone touches the surface of the screen, the body's biological current triggers capacitor charging. It can send signals to the touch screen matrix for reception, and after connection, it can control the volume adjustment of the phone and various applications. Compared with passive capacitive pens, the sensitivity is greatly improved and the writing is moderate, but it needs to be charged in a timely manner to maintain the normal operation of the circuit. At the same time, due to the uniform distribution of conductive materials, the different positions of the four corners of the touch point can also lead to different charges on the four electrodes, so the touch point can be accurately found through calculation.
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