Aplicação e seleção da tela de tela LED colorida

Atualmente, the LED display market is crowded with various brands and models of full-color LED displays. When choosing a full-color LED display screen, there are many things that consumers must pay close attention to. Some full-color LED displays have excellent display effects and are also very cheap, but their service life is not very long. What is the reason behind the malfunction and shortened lifespan of full-color LED displays?

The reason is actually very simple. Some unscrupulous merchants constantly improve and replace electronic raw materials and accessories privately in order to reduce production costs and gain more profits, resulting in a short service life and an increase in failure rate. This leads to users becoming more and more worried about using LED full-color displays and hesitant to purchase them easily. Such consequences directly make it increasingly difficult for sales personnel in the LED display industry to do so.

How should consumers choose high-quality and cost-effective LED full-color displays for this market phenomenon?

primeiramente, let’s take a look at the structure of the LED full-color display screen. It consists of LED unit modules, steel frame structures and boxes, módulo de fonte de alimentação, power lines, signal lines, control cards, computadores, etc. The LED unit board is composed of LED light beads PCB、 Composed of driver IC, power socket, signal socket, kit, etc; The signal lines include module cables and network cables for connecting control cards; The control system includes sending and receiving cards, as well as a computer that requires the installation of a dedicated graphics card.

In LED full-color display screens, LED beads are the most critical material. Once they have problems, no matter how good the accessories are, they are useless. Assim sendo, choosing good LED beads has become a matter of great concern for both manufacturers and users. Contudo, many people do not know how to distinguish the quality of beads. Geralmente, manufacturers have technical personnel using professional instruments and tools for experimentation and testing. As a user, how to detect them? There are two methods to detect it. One is to use LED display control software to visually check the three primary colors and white balance effect of the display screen, to see if there is a blurred screen, if there is color difference, if there are no bright spots, dark spots, or bright spots. Scan the line to test for ghosting (vazamento) and constant bright spots, and then play a video to test the viewing angle. Geralmente, indoor full-color LED displays can have a viewing angle of 120 degrees horizontally and vertically, while outdoor full-color LED displays can have a viewing angle of 100 degrees horizontally and 50 degrees vertically. If the viewing angle is too low, it is an unqualified product; em segundo lugar, if the user does not know how to check it themselves, please take the module to other manufacturers in the same industry for technical assistance to test and confirm whether they have purchased inferior products.

Next is the control system of the LED full-color display screen, which is also a crucial accessory, equivalent to the human brain. Without it, even the best LED will not light up and cannot display the image normally. The control system mainly transmits data from the computer to the sending card, which then processes it and transmits it to the receiving card through a network cable. The receiving card then sends the signal to the LED unit board through a ribbon cable to drive the IC, and the driving IC controls the on and off of the LED beads. The basic working principle is like this.