The advantages of small-pitch LED display are mostly used for outdoor technology.

In recent years, the application of LED display in the field of outdoor advertising has been continuously innovated, adding a landscape to urban life. After the indoor small-pitch LED display Sparks, the outdoor small-pitch LED display will also be strong, LED display manufacturers have stepped into the outdoor small-distance research and development, trying to replace the original advertising form. For outdoor media, they are eager for smaller-space products because the content of the ads needs to be new and the form of advertising needs to be innovative. The small-pitch LED display can showcase the customer's creativity better, including professional products, private customized services, etc.

Development status

In the advancement of technology and people's constant pursuit of display effects, applications such as outdoor advertising put forward higher requirements for outdoor LED displays, not only high brightness, but also can withstand the sun and rain to achieve a wider range. Perspectives, more vibrant colors and clearer details. The birth of small outdoor spaces is meeting these needs.

As the packaged devices became smaller and smaller, the outdoor display began to develop in a small pitch direction. Originally, it was packaged in a straight-in package. Later, as the technology matured, the surface mount began to be applied outdoors. The surface mount was initially packaged at 5050, followed by the 3535 package, and now the 2828 package. The miniaturization of packaged devices, combined with the breakthrough of weather resistance, has begun to move from indoors to outdoors. This is the prototype of outdoor small-pitch development.

The outdoor small spacing is not very mature now, but it still occupies a small part of the outdoor market, such as some floor screens on the pedestrian street or the display on the campus. Even so, the outdoor small spacing is still in an immature stage. Liang Xingyu, Marketing Director of Beijing Airwalker Advertising Co., Ltd. believes that “small spacing is basically good for indoor applications, but it can't be applied well outdoors, and it can present the customer's creativity well, including the stability of the equipment. Very good performance of the manufacturers have basically not seen, there are indeed many manufacturers have done very successful in the small indoor spacing. If you want to say that it is used better now, it should be the screen of the P6 used by the gas station. Maybe we are right The technology doesn't know much, but we feel that the outdoor display is going to be smaller and smaller, and it can't fully satisfy the outdoor application. My experience shows me that."

Wang Xiaodong, vice president of Phoenix Metro Media Technology Co., Ltd., also strongly agrees with Liang Xingyu. "The small pitch display is very mature indoors, but it is just a concept in the outdoors. There is no fundamental breakthrough in technology. Frozen three It is not a day's cold, the development of outdoor small spacing still takes a long time, after a lot of experiments and verification. In fact, the small-pitch display does not meet the overall needs of the outdoor, for outdoor media operators, the general display The screens are located on the building, on the floor and on the top of the building. Each display has hundreds of squares and does not need to pursue such a small pitch display. Of course, the display spacing on outdoor high-rise buildings can also be changed. It's smaller, but it's not necessary. One reason is that the outdoor small spacing is not fully mature. The other is that the power consumption of the surface mount is much larger than the original straight plug, at least two or three times."

Advantage

Conventional LED displays that appear on the market today are usually P10 and P8 pitches, such that the resulting display is often used for viewing at a distance for clarity, in the case of close-up viewing. , you will see a clear demarcation, so that the picture quality of the close-up picture is "grainy", so these conventional outdoor LED advertising screens are always in a "high above" position. The appearance of outdoor small-pitch LED displays compensates for this deficiency.

The outdoor small-pitch LED display has clearer picture, better color reproduction, better customer creativity, and is more and more popular among media companies and outdoor advertising owners. It is not only an advertising medium, but also a smart interactive terminal. It closes the distance between the display and the viewer, so that the display is no longer high, no longer can only be "far from view and not close to play". The information transmission of "grounded gas" eliminates the strangeness of the LED display "rejecting thousands of miles away". The popularity of the display not only strengthens the communication effect of the media, but also establishes links between outdoor advertising and mobile phones. For example, the application of new technologies such as QR code, WeChat, and interactive methods can enhance the influence of outdoor media. , interactivity and media value.

“The landing of the display brings the distance between the audience and the display. The technology of mobile internet can increase the consumer experience and interaction, allowing people to have more time to contact outdoor media, realize human-screen interaction, mobile terminal. Interacting with the display screen, breaking through the traditional mode of outdoor media to spread advertising information to the audience, opening the era of two-way communication of outdoor media." Phoenix City Media Wang Xiaodong said.

At this stage, the outdoor small-pitch engineering case is generally small in size, and the installation space takes up less space, which saves a lot of space during installation. The screen of the display screen becomes smaller, and an advertising screen of even a small number of small LEDs can be installed on a fixed area. Then, these LED display screens can form an advertising network, which is bound to open up a new space for the outdoor media. The value-added space creates new business opportunities and brings great commercial value.

difficulty

The indoor small-pitch display has been developed very mature. It replaces the splicing large-screen wall such as projection, DLP, and LCD, and has occupied a part of the market in the industry. However, outdoor complex environments are a serious challenge for the development of small spaces. To make outdoor LED display with small spacing, it is necessary to select the surface-mounted LED device, but the display brightness of the surface-mounted LED is low, and the waterproof, moisture-proof and anti-UV function indicators can not meet the requirements of resisting outdoor harsh environment.

In this regard, Phoenix City Media Wang Xiaodong published his opinion: "Outdoor small spacing is very hot now, but in fact it still has many problems, many things are immature, and still need a lot of experiments to test its attenuation. Time and aging, etc. Moreover, the chip of the outdoor display cannot be made too small, and if the chip is too small, it is not conducive to attenuation. Especially for the display of outdoor advertising, it will be used for about 15 hours a day. So there are many aspects to consider. In addition to technical issues, product prices are also one aspect. For outdoor advertising operators, outdoor small-pitch LED displays are much more expensive than conventional outdoor LED displays."

He Chun, technical director and chief technology officer of Guangdong Southern Newspaper Industry New Vision Media Co., Ltd., believes that waterproofing, heat dissipation and other performances are technical areas that need to be broken through outdoor small spacing. The use environment of the outdoor small-pitch display determines its waterproof and heat-dissipating performance to be more reliable to ensure the long-term operation life of outdoor LED media, and cannot rely on the waterproof and heat-dissipation design of the steel structure.

In addition, for outdoor operators, in the pursuit of small-pitch LED display, we must fully consider the operation of the post-screen. The smaller the dot pitch of the display, the higher the resolution, and the higher the resolution, the higher the sharpness of the picture, but for the outdoor large screen that can achieve the best display without using a small-pitch display, if it is blind Following the pursuit of small distances, the number of lamp beads used per unit area will increase exponentially, so the power consumption of large screens will also increase significantly, causing serious operational pressure.

to sum up:

When outdoor watch stickers have just emerged, many companies have encountered many difficulties, but if they eat a long one and have a problem, they need to improve if they have problems. It is not a one-step process. It takes a long time to experiment, and now the outdoor surface stickers have gradually matured. It is. By the same token, the development of outdoor small-pitch displays is not a one-step process. It needs to be matured step by step, which is more difficult than the development of small indoor spaces because outdoor protection performance is more demanding.

From the perspective of future development, small pitch as a technology or a product development has a lot of space in outdoor applications. Even though there are still many technical bottlenecks, it is undeniable that small spacing is an inevitable trend in the form of the industry. With the improvement of the SMD process, the weather resistance of the outdoor display has been greatly improved, and the application of the P4 product on the market is relatively successful.

Outdoor small-pitch LED displays are mainly used in urban squares, large commercial centers, landmark buildings, railway stations, airports, sports and cultural venues. As the technology matures, the outdoor display develops in a more detailed and denser direction. Compared with the traditional LED display, the small-pitch LED products are more remarkable in that the dot pitch is significantly reduced, the resolution is clearer, the display effect is more abundant, the color is more natural and real, and the demand of high-end users can be better met. It has strengthened the spread of outdoor advertising.

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