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touch screen display
May 07, 2018

With the growing trend of the development of informatization in China, the media for people to obtain information is becoming more and more abundant. Most of them are through multimedia. The use of LCD touch screens is also increasing, because touch screens are not only suitable for China’s multimedia information search, but also The touch screen has many advantages such as robustness, fast response, space saving, and easy communication. With this technology, users can use their fingers to gently touch the icon or text on the computer display screen to achieve the host operation, so that human-computer interaction is more straightforward.


We talked about the LCD touch screen should be more familiar with, everyone in the process of using the LCD touch screen, whether it has observed the structure of the LCD touch screen? What is the working principle of the touch screen? The following excellent experts in the field of vision to give you a brief introduction to the structure and principles of LCD touch screen.




basic structure


The working part of the liquid crystal touch screen is generally composed of three parts: two transparent resistive conductive layers, a separation layer between two layers of conductors, and electrodes.


The resistive conductor layer is made of a resistive material such as indium tin oxide (ITO) coated on a substrate. The upper substrate is made of plastic and the bottom substrate is made of glass.


The insulating layer is a viscous insulating liquid material such as a polyester film. The electrode is made of a material with excellent electrical conductivity (such as silver ink), and its electrical conductivity is about 1000 times that of ITO.


working principle


For operational convenience, people use a touch screen instead of a mouse or keyboard. When working, we must first touch the touch screen installed on the front of the monitor with a finger or other object, and then the system locates the selection information input according to the icon or menu position touched by the finger.


The liquid crystal touch screen is composed of a touch detection component and a touch screen controller; the touch detection component is installed in front of the display screen to detect the touch position of the user and accept the touch screen controller.


The main function of the LCD touch screen controller is to receive touch information from the touch point detection device, convert it into contact coordinates, and send it to the CPU, which can simultaneously receive the command sent by the CPU and execute it.


The basic structure and principle of the LCD touch screen screen is simple to introduce to everyone, we can put the "analysis of industrial touch screen which is divided into several categories? "Combined understanding, may understand more profoundly.


About Vision:


Excellent Vision http://www.chinasunyee.com is a high-tech enterprise integrating R&D, design, production, sales and service. In the field of industrial-grade display screens, Elite Vision is proud to provide customers with an integrated display touch solution that gives them "seeing" new heights.


Strong design R&D team with more than 10 years of display module industry experience, providing customers with one-stop service from solution design to product mass production technology; “high reliability solution”, “sunshine visibility solution” and “wide” The “Perspective Program” is the result of continuous technical innovation by the Vision Group R&D team, which fully meets the needs of the market. The


The products produced by Vision Vision are widely used in industrial hand-held terminals, smart homes, medical terminals, Internet of Things terminals and other major fields, professional product testing equipment, industrial-grade reliability standards, and escorting customers' product quality. At the same time, a large number of companies such as the New World, Honeywell, Yuantong, Xinhua Medical, Gary Medical, Yuanda, Fanzhuo, Perth, Elcon, Fourier, TCL, Beidouxingtong, Zhimeida, Ruiwode, etc. The strength of customer groups has become their trusted long-term supplier, standing in the industry leading position.


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