The LCD touch all-in-one machine is a PC-side display device that displays information and supports machine-machine interaction. From an industrial point of view, the LCD touch all-in-one machine is a device that integrates advanced touch screen, industrial control, computer and other technologies. It can provide the public with information query, fingerprint detection, scanning, information reading, printing, etc. The equipment that provides services can provide the public with fingerprint attendance, card swiping, printing and other needs. There are many types of touch screens; now the mainstream applications of LCD touch all-in-one machines are capacitive touch and infrared touch. The editor will take you to understand these two screens.
Infrared touch currently occupies a large part of the touch market due to its mature technology, accurate touch accuracy, and relative cost advantages. The disadvantage of infrared touch is that there are requirements for applicable occasions. Infrared touch is not suitable for occasions with strong light. When there is direct sunlight on the touch surface, it will have a certain impact on the accuracy of the touch. Infrared touch analyzes the touch position by blocking the infrared rays emitted by the infrared frame for positioning. It is conceivable that when there is dust, water droplets and other obstructions, it will have an impact on the touch. Therefore, infrared touch is generally used in indoor cleaning scenarios where there is no strong light exposure.
The capacitive touch screen can be simply regarded as a screen composed of four layers of composite screens: the outermost layer is a glass protective layer, followed by a conductive layer, the third layer is a non-conductive glass screen, and the fourth innermost layer is also conductive layer. The innermost conductive layer is a shielding layer, which plays a role in shielding internal electrical signals. The middle conductive layer is a key part of the entire touch screen. There are direct leads on the four corners or four sides, which are responsible for detecting the position of the touch point. Nowadays, as the cost of capacitors gradually decreases and the specifications become larger and larger, capacitive touch has the advantages of high sensitivity, strong anti-interference ability, wide range of use scenarios, and small impact on the appearance of the machine. Capacitive touch is rapidly differentiating the field of infrared touch. market share.
Now the technology and solutions for LCD touch all-in-one machines have matured; they can meet the application needs of different regions, places, and users. Meet customers’ needs for an intelligent society, provide life efficiency, and provide better conditions for the display and dissemination of information.
