1. Brand and performance of LED display die
For LED display screens, usually when the construction party lists the plan to the customer, they will also write the configuration of the display equipment and so on. This generally includes the brand, size, and related products of the die. For the die on the market today, although the function may not be much worse. But the prices of different brands are quite different. High-end LED displays generally choose to use American Cree (CREE) die, the stability of this die, antistatic ability, oxidation resistance, corrosion resistance, etc. are very good. As for the cores of Nichia, the quality is also very good. The slightly better domestically produced dies from Taiwan Epistar and Opto Lei are also pretty good, and the next ones are those from Hangzhou Silan, Xiamen San’an, and Wuhan Huacan. There are also dies from other domestic brands, but the quality is low. It is too unstable, so the price of the product in this respect will vary to nearly several thousand yuan per square meter. Therefore, when you understand the solution, it doesn't matter whether you look at the configuration. We also need to carefully consider the brand characteristics. In addition to the brand, it is the performance of the equipment that we often worry about. For the wavelength, brightness, or display angle of the LED tube. Some engineering chambers will tell you that the lamp is positive or partial, so the price will be different.
2. The brightness of the display
Why do you talk about the brightness of the led display? Because many consumers are easily deceived by illegal contractors in this regard. In order to induce customers to use their products, some engineering companies often increase the brightness drastically. Such equipment may seem to have very good results at the time. And let you feel that the price he gave you is cheap and of good quality. However, after one or two years of use, the originally promised brightness will almost disappear. Until then, our LED displays always have problems like this and that from time to time. We regret it's too late.
After all, there are too many people doing led display screens on the market. This refers to the brightness of the led display screen, which is often the easiest place for illegal profiteers to start. After all, this occupies a very important proportion in the cost of the display. Therefore, if possible, it is recommended that users go to several other parties to compare the sample screens before choosing, and then make a decision on which to buy.
3. The driving mode of the led display
In the entire system of led display screens, the price of display drivers only accounts for a very small part, about 8% to 15%. However, as the types of drive accessories are becoming more abundant nowadays, it also gives some people the opportunity to do tricks. Therefore, although there are few driving methods, it is also a place that we cannot ignore. The identification of the driving mode can be identified from these two aspects, one is the scanning mode, and the other is the light board design of the equipment. In the scanning method, there are dynamic scanning and static scanning. In the static scanning, it is divided into real pixel LED display, which means that the red, green and blue light-emitting tubes that constitute the LED display only participate in the imaging use of one pixel. The virtual pixel uses a software algorithm to control and control the luminous tube, and the luminous tube participates in the imaging of multiple adjacent pixels. The virtual screen uses fewer lamps to achieve a larger resolution, which can make the pixel resolution of the LED display screen. The rate is increased by 4 times. There is also a big price difference between the two. These are also places that are easily overlooked by everyone and are deliberately confused.
As for the design of the light board, whether the light driver is separated or the light driver is integrated, whether it is an ic brand driven by a double-layer pcb or a four-layer pcb3 driver is also a place that we need to focus on. After all, there are already more than a dozen related products on the market today. How difficult is it if you want to cut corners?
4. After-sales service and structure of the display
Speaking of this after-sales service, Fly-LED LTD has to say loudly that there are too many scammers in this society. After-sales service is cheating! Why am I making such a fuss? Some unscrupulous profiteers promised consumers how many years of warranty to be able to win the project, but there is a problem with our screen, basically let us debug the display by ourselves, but the disassembly of the led display is troublesome and computationally expensive. If we tell him that the people on our side will not, the illegal profiteer will say again, you send the bad place to the manufacturer to help you repair it. After more than half a month has passed, the screen still has not been repaired. . In the after-sales area, it is strongly recommended that consumers contract with the manufacturer to indicate the form of after-sales service and the response time. On the equipment box, some equipment is simple box, and some seem to be simple but waterproof box. For different types, their differences are mainly reflected in whether they have a back door and the thickness of the box. In addition, there are many differences in the choice of structure, whether to choose modular splicing or directly fix the light board on the box board. If it is a modular type, because it is more convenient to disassemble, so it is more convenient to repair.
