The splicing interactive touch screen refers to: an ultra-narrow splicing screen, an infrared multi-touch screen, splicing tempered glass, splicing processing software, and an integrated touch device integrated with the computer host. It can support multiple narrow-edge LCD screens to be spliced ​​together. Customized tempered glass and a set of true multi-point infrared touch frame on the outside according to the length and width of the splicing, and then step by step according to the engineering scheme, and then connected to the computer control host Tested and finally installed as a companion interactive display software.
Touch principle:
Taking a large-sized infrared multi-touch screen as an example, the working principle is to closely match the infrared matrix in the X and Y directions in front of the screen, and to continuously detect whether there is infrared rays blocked by the object and to locate the user's touch.
As shown in the figure below, the touch screen is equipped with an outer frame on the front of the display, and a circuit board is designed in the outer frame, so that the infrared transmitting tube and the infrared receiving tube are arranged on four sides of the screen, and the infrared matrix of the horizontal and vertical intersecting is formed one by one. After every scan, if all the infrared tubes are accessible, it means everything is normal and there is no touch. When there is a touch, the finger or other object will block the horizontal and vertical infrared rays passing through the coordinate position. When the X or Y-axis touch screen scans and finds that there is an infrared light blocked, it indicates that there may be a touch, and immediately changes to another axis coordinate. Scan, if another axis is found, there is also an infrared block, which means that the touch is found, and the position of the touch point on the screen is judged by calculation.
Installation principle:
The large-size splicing touch screen mainly achieves the touch effect through the touch frame, and the large-size infrared multi-touch frame adopts the packaging and transportation method of disassembling into four sides, which greatly saves transportation cost, and is convenient and convenient for transportation to the site installation and construction. The specifications of the infrared frame are marked with A, B, C, D... letters. The same letters are used to connect the cables, and a USB data cable is connected. (USB cable is used within 10 meters, USB cable is extended for 10-20 meters. The operating system can be used with a network extender below 20 meters.
Features:
The reason why large-size infrared touch screens are widely recognized is inseparable from the advantages they carry:
Ultra-narrow side, large size (12.1′′-600′′), true multi-point, no ghost point, no drift, no blind zone; no drive, plug and play; excellent anti-ambient light capability; excellent product stability: Infrared to tube high fault tolerance; smooth and smooth corner line; suitable for vertical and horizontal display installation; support specified area touch function; CE, FCC and RoHS certification and ISO9001 quality certification system; support touch wake-up sleep PC .
Application range:
Large-size spliced ​​touch screens are becoming more and more common in the market, and the application fields are also very extensive. Jingyan electronic large-size touch products mainly serve corporate meetings, corporate training, vocational education, school teaching, museums, science and technology museums, digital exhibition halls, urban planning halls, architectural design institutes, landscape garden design companies, medical equipment exhibitions, event exhibitions. Multimedia technology application visual display, etc.
In future articles, we will continue to talk about other issues related to large-size touch screens, such as "how to maintain and maintain large-size spliced ​​touch screens", "what common problems will be encountered during installation or use" and so on. Jingyan Electronics has been focusing on infrared touch technology for ten years and has accumulated a lot of feasibility experience. It has also successfully provided accurate industry solutions for many large projects. The largest infrared touch frame is 15 meters long and has received high praise in the industry.
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