There are currently two mainstream touch screen technologies: resistive and capacitive. With capacitive touch screens replacing resistive ones as the trend. Capacitive touch screens can be further divided into surface and projected. projected with its performance advantages gradually become the mainstream technology, and accelerate the capacitive technology to resistive technology replacement.
The most critical component of a projected capacitive touch screen is the Touch Sensor, which is an ITO conductive glass etched into an X and Y conductive module.
The substrates used for sputtering ITO materials include glass and PET film. Due to the fragile material of the film, it can only be processed once in general. The Touch Sensor of the film capacitor screen usually etches ITO conductive lines on two films respectively (one is etched into line X and the other is etched into line Y), and then fits together to form the Touch Sensor. Compared with film material, glass material can be processed multiple times, so the Touch Sensor of glass capacitor screen is usually composed of a piece of glass.
Depending on the process, glass capacitive screens are divided into single-sided and double-sided screens. In single-sided capacitive screens, the X and Y conductive lines are made on one side of the same piece of glass, while in double-sided capacitive screens, the X and Y conductive lines are made on both sides of the same piece of glass. The glass structure of capacitive screens is valued by manufacturers for its narrow frame design and high light transmission rate compared to the film structure.
Touch screen is a revolution in the way of human information interaction. It has been widely used in industrial computers, ticket machines in mass transportation places, bank ATMs and other fields in the early stage. With the rapid rise of smart phones, tablet computers, laptops and other new small and medium-sized touch screen products in recent years, people's preference for computer operation has been deeply influenced. And the establishment of the habit of using and dependence on small and medium-sized touch screen products will increase people's demand for large and medium-sized touch screen products, so that touch screen will penetrate into human life in a comprehensive way.
Benefiting from the upgrading of various professional equipment and popularization in various industries, large-sized touch screens have maintained rapid growth in recent years. Touch screens are not only widely used in self-service devices, POS machines, ATMs, etc., but also with the rapid development of new touch-controlled laptops, the popularity of interactive digital signage in shopping malls, and the strong demand for interactive electronic whiteboards in education and training will increase the demand for large-sized touch screens. Finance, telecommunications self-service terminals, public transport self-service ticketing systems, education and industrial control equipment are the most potential industries in the future, coupled with the start of the LCD market, will drive the rapid growth of demand for large-size touch screens.