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Under the development of increasingly advanced LED technology, LED displays that were previously only used for indoor surface mounts began to be widely used outdoors, gradually occupying the market share of the in-line. As we all know, outdoor LED displays all use in-line devices a few years ago, and the surface of the display is low in brightness, and can not adapt to the outdoor complex environment, so the surface-mounted LED display can only be used in large quantities indoors. In-line LED devices dominate the outdoor display world. Nowadays, the development of technology has made the surface-display display no longer confined to the interior. It has begun to rise outdoors and has achieved rapid development, and has been widely used, and it is in the world of outdoor display with the in-line LED display.
Outdoor surface mount advantage is obvious
Compared with in-line products, outdoor surface mounts have the advantages of wide viewing angle, good light distribution, good color mixing and high contrast. The outdoor surface-mounted full-color screen not only has a wide viewing angle of 110 degrees or more in the horizontal direction, but also has a wide viewing angle of 110 degrees or more in the vertical direction. Therefore, the outdoor display with hanging high-altitude needs an outdoor surface mount such a full-color screen with a wider viewing angle. Shows better advertising performance.
In addition, outdoor surface mounts are more consistent than in-line LEDs. In-line red, green, and blue elliptical LEDs are difficult to achieve at three different brightness levels at different angles, while outdoor surface mounts can achieve matching heights of red, green, and blue at different angles. Consistently, it ensures that the outdoor full-color surface-mounted LED display has the same brightness at any angle to achieve a better color vivid effect.
In addition, the full-color surface mount is much smaller than the straight-line light, so the light-emitting area is small, and the black area is large, which improves the contrast of the LED display. The surface mount adopts a three-in-one design structure, and has three chips of red, green and blue built in, which can be used as one pixel of the display screen. In-line LED lights, which have a single-color chip built in, need at least three different colors of red, green and blue to be assembled together to form a pixel of the full-color display. Therefore, the full-color SMD display has a better blending effect than the in-line elliptical LED display.
Not only that, the outdoor full-color surface-mounted display is free of glue, and the product is lighter and thinner and easier to install. The aluminum alloy material box structure is very light, and the appearance is not easy to be deformed and assembled conveniently and evenly. Suitable for rental companies, car screens, mobile media; column installation or wall installation to reduce the pressure on the steel structure of the bottle.
The circuit design of the outdoor surface mount display module enables the two-in-one of the light board and the drive board to be easily automated. Outdoor surface mounts not only improve reliability, increase productivity, but, more importantly, reduce costs compared to in-line products. For the advantages of outdoor surface mounts, outdoor surface mounts have two distinct advantages over straight inserts. First, the outdoor surface mount display effect and viewing effect are better than the direct insertion; second, the outdoor surface mount angle is large, and it is more suitable for the LED display with smaller pitch than the direct insertion.
It is true that due to various reasons such as policy guidance and market demand, the dot pitch of LED full-color display is getting smaller and smaller, and the traditional in-line LED display technology has obviously failed to meet the needs of the application environment. With the maturity of LED packaging technology and the wide application of lamp bead patch in the field of LED, LED full-color display surface-mounting technology has begun to be in the wind industry, and the application of LED full-color display has been pushed to a new height. Compared with the traditional in-line LED full-color display, the outdoor surface-mounted display screen is more beautiful, more energy-efficient, the cabinet is lighter and thinner, and the viewing angle is wider. Whether it is used indoors or outdoors, it replaces the traditional in-line LED. Color display has become the trend of the times.
Comparison of outdoor surface mount display and in-line LED outdoor display
With the small-pitch LED full-color display moving from indoor applications to outdoor applications, full-color surface-mount technology announced that it has entered the era of outdoor LED display applications. As a result, the market size of the full-color surface-mounted LED display has increased rapidly. So what is the difference between an outdoor surface mount display and an in-line LED outdoor display?
Performance comparison between outdoor surface mount display and in-line outdoor display
It is worth mentioning that, because only the full color of the module and the full color of the surface sticker, and the full color price of the surface sticker is very high, the full color effect of the module is not good and the maintenance cost is very large, so a similar to the surface sticker. The way - the sub-sticker came into being. It is different from the surface mount, the surface mount is a technology, but the sub-surface stick is to insert the lamp foot into the hole of the PCB to achieve the effect of the surface mount light, and the two have similarities. In terms of these two display effects, the surface display effect is closer to the flat-panel TV effect, while the sub-surface sticker is relatively inferior in color, but the price is a little cheaper.
Comparison of Advantages and Disadvantages of Surface Stickers and Asian Table Stickers
Difficulties in outdoor surface stickers
In recent years, outdoor surface mount products have increasingly replaced traditional single-lamp products with their three-in-one and mixed color display modes, which have become the main choice for outdoor LED displays. However, it is not easy to apply the surface mount products to the outdoor LED display. It is not only necessary to have a deep understanding of the surface mount products, but also to have an in-depth analysis of the outdoor LED display.
Packaging process
Outdoor surface stickers, as the name suggests, are applications that are outdoors, so surface-mount products are subject to the ever-changing outdoor environment. This also makes the packaging process of outdoor surface mount products more difficult, regardless of material matching, thermal stress, material and substrate adhesion, etc., have more stringent requirements. How to maintain a good combination in the case of performance changes is a difficult point.
Glue filling process
The colloid filled in the module of the traditional outdoor screen will gradually age under the sun, rain and ultraviolet rays. When the characteristics of the colloid change, it will crack and fall off, causing the circuit board and the LED to lose the protective layer, even after a long time. After the heat rises and shrinks, the waterproof effect is not achieved, and the glue enters the screen through the gap, which has a corrosive effect on the PCB, affecting the life and stability of the whole screen. If it is a surface mount outdoor three-in-one glue filling process, because the lamp foot is too short, the glue is too thin, the consequences are more serious.
Waterproof and moisture proof
In addition, waterproof and moisture-proof has always been a key parameter for outdoor full-color SMD SMD. Although, with the development of LED chip technology and packaging, the brightness and protection level of the surface mount has been able to meet the needs of outdoor applications, but it still needs to be continuously broken. For outdoor surface stickers, the two major difficulties of waterproof and moisture-proof are no longer the biggest difficulty in the promotion of outdoor surface-mounted LED display. However, in the market where the price is king, if you want to promote it, you will need to be cheap.
cost
For a long time, the high cost is one of the factors that can not completely replace the direct insertion lamp for a long time. The direct insertion lamp occupies half of the outdoor display at a low price, and the price of the surface mount product is obviously higher than that of the conventional direct insertion lamp. For surface-applied products to be widely used on outdoor displays, price issues must be resolved. In order to reduce the price, only technically continually researching and reducing costs through technology is an effective solution.
Outdoor surface mount LED display trends and trends
With the development of outdoor LED displays, surface mount packaging products have begun to move from indoors to outdoors, and outdoor surface mount LED displays have become more popular and market share has continued to expand. In this regard, the market demand for outdoor surface mounts will be further expanded, and will occupy the mainstream of the market, gradually occupying the market share of the plug-in, but will not completely replace the in-line products, because in some specific occasions, it is more suitable to use the in-line products. . For example, the LED display on the top of the high-rise building, because of the long distance, the influence of the angle factor is small, and at the same time, it is more energy-saving. In this case, the surface sticker is not required. Of course, outdoor surface mount products need to be further strengthened in terms of sealing, high and low temperature resistance, and UV resistance. Obviously, many companies are not doing well enough in these areas. With the continuous advancement of LED display technology, the concentration of LED display packaging industry will become higher and higher. The so-called survival of the fittest, enterprises that can survive in the fierce competition must have its own characteristics. With the resurgence of the reshuffle, the companies that have no unique advantages in the future are bound to be eliminated.
Surface-mount package products are used in the outdoor market, which is an unstoppable trend, and the output will continue to increase. At present, the outdoor surface sticker gradually replaces the direct insertion lamp. Further improvement is the brightness, cost, and airtightness of the lamp. With the rapid increase of the chip height and the expansion of the production volume, the problem will be gradually solved.
The development of surface stickers is more inclined to the high-definition small spacing and surface stickers
In addition, with the continuous development of small-pitch technology, people's requirements for the definition of LED display will be higher, and outdoor surface stickers are no exception. In other words, outdoor surface stickers will develop in the future in the direction of high definition. Therefore, the outdoor surface mount LED display wants to be high-definition, it needs to achieve a smaller pitch, and the small-pitch LED display wants to stand firm in the outdoor market. The surface-mount LED device is also a good choice for its development. . It can be obtained that the combination of small pitch and surface mount will make the outdoor surface mount LED display more high-definition and meet the needs of the market, thus occupying the outdoor display market.
In recent years, the demand for outdoor surface-mount LED display products has increased in the market, and the outdoor surface-mounted LED display has gradually gained the favor of customers with its advantages of small dot pitch and high-definition display. P3.9 is the smallest point in the outdoor surface mount products in the global market. P5 outdoor surface mount LED display has become the hottest outdoor small pitch product. In the future, outdoor surface-mounted full-color screens will gradually replace the in-line products, and truly realize the development trend of indoor screens. At the same time, the outdoor surface mount full color screen is also combined with high-density products to develop in high-definition high-density direction.
In order to obtain a better viewing effect, the screen requirements of the display screen are from simple full color to realistic, to restore the authenticity of the color, and at the same time to achieve a comfortable and clear image display as a television on a smaller display screen. Therefore, high-definition displays represented by high-density and small-pitch LED displays will be the future development trend. The outdoor surface-mounted full-color screen has obvious advantages over the in-line type in terms of screen display, aesthetics, viewing angle, maintenance, etc., and is more suitable for outdoor use requirements.