SMD LED display will replace in-line structure

"SMD LED display will replace in-line structure" We all know that the outdoor large LED screens used to use in-line LED lamp beads. With the continuous advancement of technology and product upgrades, many LED display peers are now turning to outdoor stickers. Led lamp bead products with sheet structure. Why do we need to transform? It is because the SMD lamp beads have a large viewing angle, good consistency, and good light mixing effect, and are loved by users. With the breakthrough of related technologies, the application of SMD LEDs in outdoor display screens will become a trend. Because SMD LEDs are light in weight, easy to install, and have many advantages in display effects, the proportion of SMD LED large screens in outdoor applications will gradually increase in the future. Generally, when designing large outdoor LED screens, users usually choose R, G, and B three different colors of plug-in (DIP) Lamp LED components to mix light as the light source of the outdoor display. The harsh conditions of the environment are quite unfavorable to LED components in the general SMD packaging form, such as water vapor and other issues. However, the single-color single-LED arrangement pitch is larger than that of the three-in-one SMD package, and the larger pitch will result in lower image resolution, so it can only be used for long-distance viewing displays. EVERLIGHT's rainbow series provides a three-in-one full-color light source and a 120-degree viewing angle, which can create a higher LED arrangement density to show a clearer picture, and in terms of viewing distance, it will not Limited due to spacing and resolution issues. Emphasize energy-saving characteristics and create differences At the current stage, the power required per square meter of a general LED large screen is about 600 watts, and the brightness is about 7000 nits. However, Chen Shunzhi believes that LED itself has good conversion efficiency and has energy-saving characteristics , Therefore, such brightness should not consume too much power, 300 watts should be enough. In fact, the current power of Optoelectronics' large LED screens is below 280 watts. In addition to the full-color appeal, it is worth noting that the energy-saving characteristics of LED screens have gradually received attention in recent years. In this regard, Chen Shunzhi, the system department assistant of Optotech, said that after all, LEDs are known for their environmental protection and power saving. In order to achieve a bright and beautiful appearance, the power consumption is greatly increased, which seems to be contrary to the original intention of LED. Moreover, the low power consumption LED large screen can save customers a lot of electricity bills in the long run. Moreover, the reduction of electromagnetic radiation interference (EMI) is another advantage of the low power consumption LED large screen. In terms of current, the current consumption of a 60-meter-square display screen was 220V/140 amps, but now it only needs 80 amps. And Optotech expects to reach the target of 60 amps in 2011, which will further save electricity costs for customers. Currently, including various LED large-screen products, Optoelectronics’ monthly shipments are about 200 Around 10,000. Due to the fierce competition in this field, Optoelectronics puts a lot of emphasis on differentiation, and energy saving is the focus of the company's product promotion at this stage. In addition to the above advantages, another benefit of low power consumption is that it can prolong the life of the product. Chen Shunzhi pointed out that there is a saying in this industry that the life of the product will be reduced by half for every 10 degrees of temperature increase. By reducing the heat energy and reducing the temperature by ten to twenty degrees, correspondingly, the life of the product can be increased by two to three times. To lower the temperature, the most direct way is to reduce power consumption, including the LED itself, LED driver chips, etc. Chen Shunzhi pointed out that the LED adopts a constant current drive method, and now the driver IC of the general LED large screen operates at a higher voltage. It is above 0.6V, but at present, Optoelectronics has developed a driver chip with an operating voltage of only 0.2V, and it has been in official operation for more than a year. On the whole, as the market competition of LED electronic screens becomes increasingly fierce, all manufacturers must constantly seek breakthroughs in technology. For example, to make SMD LED full-color displays suitable for outdoor use, it is necessary to overcome the problems of heat dissipation and waterproofing , In addition, in order for LEDs to truly achieve energy saving and emission reduction, it is necessary to pay more attention to the reduction of voltage and current. Only in this way can they win in the market with superior cost performance. .