For all-in-one touch machine, the choice of touch mode is an important factor to be considered in the use of user scenarios. In the industrial field, users generally choose the capacitive touch mode of touch all-in-one machine, like the use scenario of multi frequency converter interference in the cabinet of electrical room. In fact, in the field of industrial automation, the resistance touch mode of touch all-in-one machine is more popular with users.
Previously, touch Smart has published relevant articles on the advantages of capacitive touch mode of touch display device. Today, touch smart continues to discuss with you the advantages of resistive touch screen of touch all in one machine, so as to find out! It is well known that the main feature of capacitive touch screen is that it can realize multi touch, allow arbitrary selection and operation between multiple fingers, and bring users a more humanized experience. Although multipoint touch screen has made some breakthroughs in technology, there are still great limitations in the application field of these technologies.
Therefore, in fact, the resistive touch screen with one touch still has the largest market share. At the same time, because the resistance touch technology has a long history of research and development, its technology has been in a mature and stable period, and it is also the most widely used one in the market.
Resistive touch screen is actually a kind of sensor. As shown in the x-axis diagram of resistive touch screen, it converts the physical position of touch points (x, y) in the rectangular area into the voltage representing X and Y coordinates. At the same time, in terms of component classification, resistive screens can be four wire, five wire, seven wire or eight wire touch screens. The difference between these categories is the difference in screen bias voltage.
Among them, the most researched typical resistive touch screen is four wire resistive touch screen. Now the technology in this field is mature, and the research in this field has turned to the research on the core devices of resistive touch screen. The mature application device on the market is ADS7843, which is a typical chip developed for four wire resistive touch screen and has been widely used.
The application of resistive touch screen in touch all-in-one machine, because of its one touch technology principle, makes the machine touch more accurate. At the same time, in terms of pixel configuration, like touch smart industrial all-in-one series products, it can support HDMI 4K video transcoding, with higher HD display effect. In the industrial automation application scene, because the industrial environment has many dust, water, oil and other characteristics, the application environment of touch all-in-one machine is relatively bad. On the screen, the resistive touch screen is not affected by pollutants, which is favored by the majority of users.
At the same time, when the resistive touch screen should be on the touch all-in-one machine, the touch screen will adopt the waterproof strip design in the structure, and pass the controllable humidity, high and low temperature tests, so as to ensure that the screen will not be affected by dust, water vapor and oil, and can be used stably in low or high temperature environment. Based on the working principle of pressure sensing, resistive touch screen can be manipulated by any object on the screen. Therefore, in some industrial scenes that need to wear gloves or can’t be touched directly by hand, resistive touch mode touch all-in-one machine is generally adopted, and handwriting recognition function is supported.
Because of the mature advantages of resistive touch technology, resistive touch screen has been popularized in the screen and control system, and the price is relatively cheap. To a certain extent, it also saves some manufacturing costs for touch display equipment manufacturers.