1.Resistive Stylus
Resistive touch screens are commonly found in outdoor machines (e.g., parking payment machines), car navigation, industrial machines, and traditional POS machines. The resistive touch panel replies on pressure sensing. When you stroke the screen surface, it does not respond. You need to poke the screen with a little force to make the screen sense where you touch. Therefore, any material can be used for a resistive stylus. Plastic is a common material to be made as the pen tip. Compared with the finger, the stylus has a smaller contact point and can more accurately touch your right position.
2.Capacitive Stylus
Mainstream electronics such as smartphone, touchscreen monitor all adopt capacitive touch technology, and the capacitive touch stylus used is also the focus of this article. Beneath the cover glass, there are two layers of ITO conductive material, which forms an electromagnetic field on the X axis and Y axis. When a charged conductor, such as a finger or a capacitive stylus, touches the touch screen, the contact point absorbs a small current. The screen determines the touch point by sensing the change of the capacitance value of the X and Y axes, and responds at the position.
1) Passive Stylus
The passive stylus pen replaces the finger as a conductor and simulates the effect of finger touch.It does not require power itself, and the pen tip is usually larger to achieve sufficient capacitive sensing. This type of stylus is relatively unlimited in compatibility and can be used with any capacitive touch screen.
2) Active Stylus
The active stylus contains a battery and a control chip. When the power is turned on, it will actively emit electromagnetic signals on a specific frequency. The contact area between the stylus and the touch glass is usually relatively small.
Depending on the sensitivity of the touch screen itself, the amount of electromagnetic induction of the stylus, and the operation system of the device, the suitable stylus models are different. Not all active styluses can work with all capacitive touch screens.
Most active styluses are designed for specific touch devices, for example, Apple Pencil can only be paired with the iPad, and Samsung's S Pen only works with part of Galaxy tablets/laptops/phones (Samsung phones without S Pen are usually not supported), Surface Pen or ADONIT Ink with Microsoft Surface series.
These dedicated active styluses can show precise handwriting, reduce errors, and even provide palm rejection and pressure sensing functions through pairing or Bluetooth connection. The details of the pen writing are presented, which is closer to the effect of writing on paper.
Reprinted from:https://www.gechic.com/cn/
