The working time of LED advertising screen is much longer than that of conventional LED display screen, because it is used for advertising, so it has to work non-stop every day like a taxi. We suggest that users should comprehensively analyze when choosing LED advertising screens, instead of blindly Pursuing the price of LED display screens can not achieve the ideal working condition. LED is a semiconductor that can convert electrical energy into light energy. It has very obvious characteristics, such as long life, high luminous efficiency, low radiation and low power consumption. Because of these characteristics, it is widely used in the LED advertising screen industry.
The following joint Huiye Technology will tell you what to pay attention to when purchasing LED advertising screens. 1. LED service life: First of all, there is a big misunderstanding. Most people think that the main material of LED advertising screen, LED, and the driver chip have a service life of 100,000 hours. According to 365 days/year, 24 hours/day operation, the service life is 11 years. Many, so most customers only care about using well-known LED lamp beads and driver chips. In fact, these two are only necessary conditions, not sufficient conditions, because the reasonable use of red, green, and blue lamp beads is more important for LED advertising screens. For lamp beads of different colors, it is necessary to make them work in the best state. A good display is even more important.
The reasonable adjustment of the driver chip also helps to overcome the unreasonable wiring problem of the PCB. Just as if a car has a good engine and circuit control, it does not necessarily make it a good car. At the same time, the power supply is also very important. Because the power supply is under different temperature conditions, its working stability, output voltage value and load capacity will also be different. Because it is responsible for logistics support, its support ability directly affects screen quality.
2. Cost performance: Provide or require LED display manufacturers to analyze data on project installation and application environment, predict possible incidents and propose preventive and solution measures, and then make a comprehensive evaluation of the entire project plan. 3. Comply with the national standard: The general specification of LED advertising screen is the standard issued by the Ministry in 1995. More than two decades have passed, and many companies still use the original standard.
Technology is constantly advancing, and LED display technology is no exception. Judging from today's display technology, the standard at that time is no longer the standard. For example, the out-of-control point, the national standard is 3/10,000, taking the outdoor LED advertising screen with a dot pitch of 10mm as an example, generally a display screen with a standard resolution of 800x600 is 48 square meters, and each square meter is 10,000 points, and there can be 144 according to the national standard out of control point. Too many out-of-control points means that the display effect of the LED advertising screen is relatively poor. In this way, it is conceivable that not many people are willing to pay for the display screen, or even no one will pay.
4. The best is not necessarily the most suitable: all purchases come from demand. When purchasing LED advertising screens, the premise is to meet the needs of the project. On this basis, the standard can be raised appropriately. Appropriate is the best, don't blindly pursue the highest configuration, because there are many functions that you may not need. 5. Grayscale: The grayscale of dual-color and full-color LED advertising screens is an important indicator.
At present, the market is flooded with many 16-level and 64-level grayscale displays pretending to be 256-level grayscale. Its control cost is only 1/5 of the 256-level grayscale. To distinguish the good from the bad, the easiest way is to play a high-definition video, and then check whether the LED advertising screen can be seen clearly.
6. Practicality: application is fundamental, as software upgrade, hardware maintenance, maintenance and repair in application, the support of LED advertising screen manufacturers is indispensable. When purchasing display screens, pay more attention to these aspects. If there is no product maintenance guarantee, once the LED advertising screen fails, the consequences will be unpredictable.
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