The splicing screen can be interpreted as a DID splicing screen, a liquid crystal splicing screen, an LCD splicing screen, a liquid crystal splicing screen, a plasma splicing screen, a DLP splicing screen, etc., as a single display or a plurality of screens spliced into a large screen display or a spliced screen. Display, picture-in-picture and other functions. Simple understanding is the display function, but the current DID LCD splicing screen is not just a display function. More is the infrared touch screen to achieve interactive information interactive query display.
What is the name of the splicing screen plus the touch screen, the splicing screen touch screen, the splicing screen touch wall, the touch splicing screen wall is made by the side splicing screen, the splicing touch screen, the tempered glass, the splicing processor, the matrix processor, HDMI splitter, multi-screen treasure, multi-screen graphics card, audio, computer host integrated interactive touch splicing screen display large screen equipment
After splicing large screen and touch screen is a mouse action, there is a single machine / double click / left and right shortcut keys at the same time is a real multi-point writing interactive application, can directly display the multi-person multi-touch operation control display information on the touch screen on the touch screen Content and user-friendly 3D, 3D, roaming, VR / click, interactive, query, zoom in, rotate, page, mark, write and other interactive display functions.
The splicing screen is very clear to everyone what is the purpose of what is the purpose, to introduce the principle of infrared touch screen:
Take the multi-touch frame, the large-size infrared multi-touch screen, the large-size splicing touch screen, and the large-size projection interactive touch screen as an example. The working principle is to closely match the infrared matrix in the X and Y directions before the screen. The stopped scan has infrared rays blocked by the object to detect and locate the user's infrared touch frame, and the touch frame splicing screen.
As shown in the figure below, the multi-touch screen is installed with a frame on the front of the splicing screen or display. The outer frame is designed with a circuit board, so that the infrared transmitting tube and the infrared receiving tube are arranged on the four sides of the screen, and the one-to-one correspondence forms a horizontal and vertical cross. Infrared matrix. After each scan, if all the infrared tubes are accessible, it means that 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 blocking, which means that the touch frame is found, and the position of the touch point on the screen is calculated through calculation