Why are resistive touch screens more popular?

With modern people’s demand for intelligence, the touch screen, as a very important peripheral in the intelligent IoT hardware, realizes human-computer interaction simply, conveniently and naturally, and its application in various industries is constantly expanding. Especially with the trend of automation, digitalization and intelligence, the demand for industrial touch panels and industrial touch monitors in the industrial automation industry is increasing day by day, and the demand for touch screens in the industrial automation industry is also rising.

Types of Touch Screens

According to the working principle of the touch screen and the medium for transmitting information, we generally divide the touch screen into four types: resistive touch screen, capacitive touch screen, infrared touch screen, and surface acoustic wave touch screen. Each type of touch screen has its own advantages and disadvantages, and the types of use are different in different industries and fields.

At present, the technology of capacitive touch screen has been continuously improved, and the accuracy and touch experience have also been greatly improved. It has been seen everywhere in all walks of life, especially in the most common consumer electronics and mobile phones. Capacitive touch is a must.

However, in industrial automation and complex industrial sites, we have found that resistive touch screens are still relatively popular, and capacitive touch screens cannot replace resistive touch screens in the industrial automation market.

Resistive Screen Properties and Working Principle Introduction

Resistive screen, the full name is resistive touch screen, commonly known as “soft screen”, there are only three layers, the inner layer is glass, the outer layer is film, and the adjacent side of the film and glass is coated with ITO. At the same time, the resistive screen is actually a sensor.

At present, resistive screens are divided into four-wire and five-wire types, but we often see four-wire and five-wire types, and the working principle is almost the same. The biggest difference is that the accuracy will be different after being affected by external forces.

Working principle: Simply put, the resistive screen is divided into two layers, separated by spacers in the middle. When the two layers collide with each other, the current will have an impact, and the chip will react by calculating the data between the force and the current to evaluate which part of the screen is under pressure. Because the resistive screen needs the upper and lower layers to collide before it can respond.

Why are resistive touch screens more popular?

Reasons why resistive screens are more popular in the industrial field

  1. The industrial environment is relatively harsh, with a lot of dust and large temperature difference, and the resistive screen is more suitable for this harsh environment.
  2. The resistive screen can be touched by any object, and it is suitable for some industrial use scenarios that need to be operated with gloves.
  3. The accuracy of resistive touch screen only depends on the accuracy of A/D conversion, so it can easily reach 4096*4096 comparison, and the cost performance is higher than that of capacitive screen.
  4. The ability to resist electromagnetic interference is stronger, and it is more suitable for complex industrial application site environments.
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