Touch screen technology of resistance screen
Touch screen technology
The touch screen is structurally composed of an inductive liquid crystal display device, which can receive signals from the touch head or other touch actions. When the inductive display receives the touch signal, the entire touch device will execute different instructions according to the program prepared in advance to achieve the user’s touch intention. This technology replaces the traditional mechanical button device. With the LCD screen, you can get a very vivid picture and enjoy the operation, which is welcomed by more and more people.
Touch screen technology first appeared in some industrial and commercial equipment, such as POS terminals, elevator buttons, etc. Touch screen technology facilitates human-computer interaction to a large extent, and the touch screen itself is very durable. These characteristics have made touch screen technology have a great application and development. With touch screen technology, users can solve the complicated operation problems in the past by clicking the corresponding touch pattern with their fingers, which greatly facilitates users. In recent years, the launch of iPhone phone has stimulated the development of touch screen related industries, and touch screen technology has been applied to different products. With the rapid development of mobile Internet, cloud computing and other technologies, people’s demand and requirements for touch screen technology are also increasing. It is believed that touch screen technology will increasingly appear in different electronic products. In addition, touch screens also have a lot of room for development in the automotive electronics field and retail industry. According to the authoritative survey, by 2012, the touch screen market for automotive electronics and retail industry will reach $2 billion, accounting for 20% of the overall market of the touch screen industry. At the same time, in the PC industry, due to the continuous development of Microsoft’s operating system, touch screen technology will also play a very important role. In addition, in the medical field, public facilities and other fields, touch screen control technology will be further popularized, with excellent market prospects.
China’s touch screen consumer market has great potential, especially in the digital electronic product market. However, in the touch screen industry, China’s touch screen industry is mainly concentrated in the middle and lower reaches of the industrial chain. At present, Shenbei New District in Shenyang, Liaoning Province has also established a mobile phone manufacturing center, attracting mobile phone touch screen manufacturers including Chenxun Technology. On the one hand, it reflects the strong market of mobile phone touch screen, on the other hand, it reflects the low technology content of China’s touch screen industry, which is mainly processing. However, in the touch screen industry chain, the touch screen driver chip is the core, which determines the quality of the touch screen products. Major chip design companies around the world are also committed to developing high-precision, low-power touch screen driver chips.
Resistive touch screen
The resistive touch screen is a sensor, which is basically a film plus glass structure. The adjacent side of the film and glass is coated with ITO (nano indium tin metal oxide) coating. ITO has good conductivity and transparency. When touching, the ITO in the lower layer of the film will contact the ITO in the upper layer of the glass, and the corresponding electrical signal will be sent out through the inductor, and then sent to the processor through the conversion circuit. The operation will be converted into X and Y values on the screen, and the click action will be completed and displayed on the screen.
