Advantages and Development Trend for Outdoor SMD LED Display
With people's constant concern on the LED display technology, its ornamental requirements are also rising. On this basis, outdoor SMD LED display (surface mount packaging) products gradually come into people's vision, and become a leader in LED electronic display series. In the entire industry trends, it occupies a very important position. In a long time coming, its quality level has also caused widespread concern for users, while the market for surface-mount products and in-line products put forward different views, too. So what is the difference between outdoor surface mount devices(SMD) and dual in-line package?
First, with a good light, red, green and blue oval LED at different angles match the consistency of the three brightness, which is an index with high degree of difficulties. And for full-color SMD, because the design structure for the triple structure, red, green and blue chips are all in the A bracket bowl, so in different angles, red, green, and blue brightness highly match the consistency, so that the brightness of outdoor full color SMD LED display perfectly matches at any angle to achieve more excellent and vivid color effects.
Second, wide viewing angle
Outdoor full-color surface mount not only has a wide viewing angle of more than 120 degrees in the horizontal direction but also has a wide viewing angle of more than 120 degrees in the vertical direction, which has special advantages in some applications, such as building screen or outdoor LED display hanging at high altitude requires a wider viewing angle to deliver better advertising results.
Third, high contrast
As a result of three-in-one design structure, full-color SMD size is small, so light-emitting area is small, black area is large, which greatly improves the contrast of LED display.
Fourth, good mixing
Thanks to the design structure for the three-in-one, three chips are very close. Mixed with light in the same bracket bowl, rather than three discrete oval LED, the mixed effect for red, green and blue is better than the linear oval LED screen, especially suitable for close-up viewing.
Fifth, high efficiency, light cabinet
SMD LED uses automatic placement machine for automated placement, high efficiency and lighter cabinet. Automated SMD production can also improve the vertical accuracy of the circuit board, to overcome the vertical oval LED board in the vertical accuracy, thus ensuring better optical effects.
Previously, due to the low brightness of SMD LED display, and waterproof, moisture-proof, anti-ultraviolet function which can not meet the requirements of outdoor harsh environment. So DIP LED display almost had the whole outdoor market. And SMD was only used in the indoors. With the improvements of the LED chip technology and LED packaging technology, SMD brightness and protection level has been able to meet the needs of outdoor applications, and it has now been accessed to a more rapid application. Nevertheless, the SMD LED display in outdoor applications is still less than DIP LED display. This is true.
First, compared to traditional DIP products, SMD prices are clearly higher. With the price of this substantive threshold, it takes time for a wide range of applications of the SMD LED display.
Second, the harsh outdoor conditions lead to difficulties on SMD encapsulation technology.
With the unremitting efforts of LED display manufacturers and their continuous progress in research and development, SMD LED display products will be a future trend in the market.
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