Through the development of LED full-color large screens over the past few years, the technology has become more and more mature. In fact, both domestic and foreign, it is still carrying heavy burdens, especially the outdoor large screen. After most of the products have been in operation for two years, it is very Difficult to maintain within the user's expectations.
Why is this happening ?
1, there is first of all a big misunderstanding here, most people thought that the primary data screen LED, IC life spans have reached 100,000 hours, 365 days / year, 24 hours / day operation, using the number of life have more than 11 years, so big Some customers only care about using well-known LEDs and ICs . In fact, these two are only necessary conditions, not sufficient conditions, because the rational use of three kinds of red, green and blue lamps is more and more important for the display. For the different colors of the lamp beads, let it operate at its best, there is a good The display is very important. The reasonable adjustment of the IC also helps to overcome the unreasonable wiring problem of the PCB . Just as a car with good engine and circuit control, it may not be a good car.
2 , the power supply is also very important. Because the power supply under different temperature conditions, its operational stability, output voltage value and load can be different, because it is responsible for the logistical support, so its guarantee can directly affect the quality of the screen.
3 , the box planning on the display is also very important, on the one hand is its circuit protection, on the other hand is a safety function, together with dust, waterproof. But what is more important is whether the thermal circuit system planning for ventilation and heat dissipation is outstanding. With the extension of the start-up time and the increase of the external temperature, the thermal drift of the meta-device will also be added, and then the picture quality will deteriorate.
All of these elements are interrelated and affect the quality and longevity of the display. Therefore, when selecting screens, customers should also comprehensively observe and analyze and make correct judgments.
Manufacturers should also automatically provide users with simulation plans or better claims plans for practical needs and operability, assist customers in rational analysis, planning, and make the most cost-effective plans to become a reliable partner for users. The exchanges generally include the following:
1. Clarify your needs, budget, and expected best results ;
2. Defining the requirements for the project and planning for the future, requiring the seller to supply the best implementation plan, and even expand the project's functions and budget, plan to prevent unnecessary formation due to the project is not suitable for future development needs. Resource dross ;
3. Supply or require the manufacturer to analyze the project equipment and the use environment, make guesses about the incidents, and propose prevention and treatment methods, and then make a comprehensive evaluation of the entire project plan ;
4. Different LED production processes, screen assembly processes, and device technology experience will directly affect the construction period, cost, safety function, display function and quality, service life and protection cost of the entire project. Therefore, it must be known from the manufacturer or in many aspects beforehand. Compare the functional features of products and projects in all aspects, and select the plan that best suits your needs ;
5. Understand the strength, integrity, service content and quality of the manufacturers. These are the foundation and guarantee for the outstanding and long-term cooperation of the project.
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