How Does Chainzone smd led display Work?

Now, with the advancement of social technology and the development of outdoor advertising, people's requirements for outdoor media are getting higher and higher, so large LED screens are beginning to emerge. The large-scale LED display is a perfect combination of technology and media, and its product applications involve financial securities, sports, airports, railways, stations, highway transportation, commercial advertising, post and telecommunications and many other fields. How to choose a high-quality LED large screen is a problem that many buyers need to consider. Let's talk about this problem from the key aspects of LED large screens: 1. Flatness The surface flatness of the LED display should be within ±1mm to ensure that the displayed image is not distorted, and local protrusions or recesses will cause a blind angle in the viewing angle of the LED display. The quality of flatness is mainly determined by the production process. 2. Brightness and viewing angle Brightness and viewing angle The brightness of the indoor full-color LED display must be above cd/m2, the brightness of the outdoor full-color LED display must be above cd/m2, and the brightness of the outdoor led strip screen must be above cd/m2 to ensure The normal brightness of the LED display is required, otherwise it will be difficult to see the displayed content because the brightness is too low. The brightness is mainly determined by the quality of the LED die. The size of the viewing angle directly determines the audience of the LED display, so the larger the better, the size of the viewing angle is mainly determined by the packaging method of the die. Three, white balance effect White balance effect The white balance effect is one of the most important indicators of the LED display. In color science, pure white will be displayed when the ratio of the three primary colors of red, green and blue is 3:6:1. If there is a slight deviation in the actual rati

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1. Printing:         Modern solder paste printers generally consist of plate loading, solder paste addition, imprinting, and circuit board transfer. When the solder paste printer is working, the circuit board to be printed is first fixed on the printing positioning table, and then the solder paste or red glue is printed on the corresponding pad through the stencil by the left and right scrapers of the printer. Input to the placement machine through the transfer station for automatic placement.     2. Patch:       The led placement machine is a device that accurately places surface mount components on the pad by moving the placement head. It uses the guide rail or linear motor principle to control the drive head. At the same time, it must be equipped with a professional spunbond nozzle head. During the placement process, production defects such as sticking and rejection are eliminated as much as possible. At the same time, the tank chain of the LED placement machine requires more toughness and ductility to ensure its stability and service life.    3. Welding:       Reflow soldering, in surface mount technology (SMT), refers to ingot-shaped or rod-shaped solder alloys, which are melted and remanufactured into tin powder (that is, spherical tiny tin balls), and then combined with organic auxiliary materials (flux) It is blended into solder paste; it is the process of printing, stepping on, patching, and remelting and solidifying into metal solder joints. The welding process is a special process. The operators engaged in the special process shall be trained to be qualified. The operators shall operate in strict accordance with the operation documents, and conduct self-inspection and mutual inspection.    Four, overhaul:    That means testing can be added to each process to achieve the purpose of quality control.       Therefore, in the LED chip processing, so

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