Traditional handwritten pens and touch screens have begun to be applied to touch screen devices such as tablet computers and game controllers. We can use it to navigate, interact and even create content. To date, handwritten pens and tactile pens have come a long way. Now let's take a quick look at the technology behind the screen, talk about the touch pen, and then look at the future of the following touch technology。
Type of touch technology
Touch screens are divided into two main types: a resistance touch screen and an electric capacity touch screen. Retarded touch screens need to rely on mechanical pressure to detect touch control operations and operations. Such touch screens typically consist of multiple layers of material, including transparent polycarbonate layers at the top that you can access, and two conductor layers separated from insulation points. When you touch the polycarbonate layer, the material squeezes the two conductor layers together and the sensor detects voltage changes and determines the position of the touch. Such touch screens are usually used as screens that do not require complex operations or that are usually predefined for various functions. Some typical examples of resistance touch screens include nintendo ds, shopping centre maps, gps equipment and old touch screens in cars。
On the contrary, there is no need for mechanical pressure on capacitive technology. We need to spray a conductor on an electric touch screen, and when a person's finger or an electric handwritten pen touches the screen, there will be voltage changes in the static field on the screen that can be detected and tracked by the sensor to determine the contact position. Most modern smart phones use a capacitive touch screen。
The advantage of a resistance touch screen is its lower production cost. Moreover, such touch screens can be used together with all physical pointers, including fingers, penetrating needles and even chopsticks. Usually, we tend to load the high-end product with a capacitating touch screen, thereby obtaining more durable, clearer images and multi-touch functions。
Make the tactile pen active
Now we turn our eyes from the screen to the tactile pen: the current tactile pen technology can be divided into two categories: emr and aes。
The rationale is similar to that we discussed earlier. Changes in static fields can generate measurable voltage, thus helping the system track a certain location. Emr technology can use a sensor field in a grid capable of generating weaker electromagnetic fields. The tactile pen will have an impact on the magnetic field so that the device can determine the position, direction and pressure to be touched. One of the main advantages of this technology is that the tactile pen itself does not have electricity。
By definition, power-based static technologies require some form of effective power supply. The technology uses similar principles of electrostatic variability, but controls over static fields are more effective. While this will reduce the sensitivity of the equipment, it will significantly increase durability。
