The LED Screen is composed of countless light-emitting diodes (LEDs) arranged in a certain array, and driven by related equipment like computer, graphic card, USB cables, controller, video processor, file and other software. The thousands of red, blue and green LED lamps of the large LED display screen light are turned on and off to light according to certain rules and schedule time to display images, text, documents and videos.
According to the different installation location, LED display can be divided into two types: indoor LED display and outdoor LED display.
Outdoor LED displays are very different from indoor LED displays. The outdoor LED billboard has the functions of waterproof, high brightness, direct sunlight, dustproof, high temperature resistance, wind resistance, lightning protection, etc. but indoor display cannot. We can see outdoor led display everywhere outside. This type of display is called pure outdoor display. It is used for 100% outdoor application.
What are the main features of “Outdoor LED Screen”?
Outdoor LED Screen is a kind of LED display, which is currently the most widely used display product in the LED display market. Outdoor LED displays are widely used in the commercial advertisements, sports stadium, transportation, high speed way, education systems, stations, airports, shopping centers, hospitals, hotels, real estate markets, subway, streets, overpass, enterprise management and other public service places, with powerful media display, information release, Creative display and other functions. The outdoor LED display is so “magical”, what are its main features, do you know? Let’s analyze and analyze with everyone.
- The main task of the outdoor full-color LED display is to do advertising-level image promotion. Therefore, allowing more audiences to see the picture is the primary goal of the outdoor high-definition full-color LED display. It adopts a large viewing angle design and covers a wide range of viewing angle. Horizontal viewing angle by SMD technology reaches 140 degree, even 160 degree, vertical viewing distance the same, too. However, some North America clients still prefer traditionalDIP346 technology although the cost is higher and vertical angle 60 -70 degrees.
- As an advertising medium, outdoor LED display screens have various forms of advertising, which are more ornamental than traditional advertising, and have a wider and more attractive range.As the main carrier of video advertisement dissemination, outdoor high-definition full-color LED display needs to have high-definition display effect. This includes high resolution, high brightness, high contrast, etc. High-resolution and high-quality advertising images can be well presented; high-brightness direct sunlight can be clearly displayed.The outdoor LED display has high brightness, the general brightness is 5500-6000cd, and the highest brightness can reach more than 10000cd. Even under strong sunlight, it could be clearly seen and the display effect is wonderful. High-contrast means that the color of the image is uniform and the image is delicate.
- The advertising content of the outdoor LED display is updated quickly, and the administrator can scheduleand revisethe advertising content of the display at any time according to the actual situation, and the operation is relatively simple. It can cover more people, as long as someone passes by, you can watch it, and no subscription is required. There are more forms of display advertising, such as sports events, craft speeches, tourism promotions, new product promotions, etc. As we know, there are countless large and small LED screens around the street in the world. When I walked to Times Square in New York and Circus Square in London, I was surrounded by dense advertising screens. In fact, all advertising media companies are promoting their large-screen simulcast programs to win more customers. These ideas and activities are changing the simple presentation of outdoor advertising;
In today’s media-surrounded era, consumers are closely followed by marketers. When I was at home, I turned on the TV at home, and there were advertisements; when I turned on my mobile phone, there were advertisements; when I went out at lift, I was greeted by advertisements. Whether you accept it or not, we have entered such an information age.
- The outdoor LED display has good waterproof performance, strong anti-ultraviolet rays, and a protection level of IP65 or above IP67, which can cope with all kinds of bad weather. Itneedsthe solid foundation of the steel structure.
- Green and environmental protection, the main light-emitting device of outdoor LED display is LED lamp beads, which are made of non-toxic materials, unlike fluorescent lamps that contain mercury, which will cause pollution, and LEDs can also be recycled and reused.What is more, theoutdoor fixed led screen has very long life span to 100,000 hours; it means it can work 11.4 years if playing video advertising in the day and night 24hours per day. Using low heat LED adopts cold light technology, and the calorific value is much lower than that of ordinary lighting fixtures. Considering the brightness of the surrounding environment changes greatly during the day and night, so we can achieve the effect of energy saving and emission reduction to automatically adjust the brightness of the outdoor LED display by software and hardware.
What is the installation method of outdoor digital led screen?
Before installation, we must fully consider the safety, stability, maintenance, outdoor performance and practicality of the screen body, etc. to install advertisement LEDs. Let us take a look at all the installation methods.
Embedded type: The steel structure is generally installed on the wall, and then the outdoor advertising LED display is embedded with the steel structure as the support, mainly installed on the outer wall of the high building. The wall is required to be a solid wall, and the method of pre-maintenance is adopted. Outdoor installation, the inlaid structure is suitable for the display screen project that has been included in the building planning and design. The installation space of the display screen is reserved in advance during the construction of the civil engineering project. In the actual installation, only the steel structure of the display screen needs to be made. The display screen is in the building wall in front of the line, and there is enough maintenance space on the back to operate.
Column type: There are no walls or available support points around location environment and is the most common installation method. For example, the outdoor advertising LED screens beside the highway, parking and plaza are mostly installed in the column type. According to the size of the screen body, it can be divided into single-column installation and double-column installation. The installation method of column type outdoor LED display has higher requirements on steel structure. Larger than 25 square meter should be double-column installation for avoiding hurricane and other bad weather.
Wall-mounted type: Generally, the force point is made on the wall, and the outdoor LED display screen is hung on the wall, and the wall is used as a fixed support. It is mostly suitable for large-scale places such as stations, airports, shopping malls, and buildings to play the role of indicating signs. Considering the difficulty of maintaining the display screen, a steel structure is used between the screen body and the wall, and a maintenance space of 600mm-800mm is reserved. The space is equipped with walkways, ladders, etc. Repair facilities and install auxiliary equipment such as power distribution cabinets, air conditioners, axial fans, and lighting.
Front maintenance type: The biggest feature of the front maintenance installation method is maintenance, and it is most convenient to replace LED accessories. Maintenance engineers can open the screen directly from the front of the outdoor LED display to operate. There are 2 front maintenance type, the one is front maintenance modules only; another one is 100% front maintenance, besides modules, other power supply, receiver card and other accessories would be changed by front maintenance in case of some issues. Fully maintenance type is too popular in the Europe for less than 50 square meters size without heavy steel structure to protect the existing old landmark; the structure is easy and slim. However, in the Africa, Middle east, South Asia and South American not the best way as terrible weather. That is why, the new generation of aluminum outdoor displays support front maintenance and back service the same time.
Hoisting type: The designed steel structure is mainly used in the entrance of passages and corridors, but also at the entrance of stations, railway stations, subway entrances, etc. as traffic guidance. Light pole screen around the street is used widely by this installation way.
Roof installation type: Obviously, the outdoor led screen is made installation in the roof of the building, so the steel structure of led screen must be strong to wind proof. The CAD drawings of building should be provided to LED screen supplier as Ref., and then they will give detailed LED cabinets design and structure design to the buyers according to the building bearing. The construction side must follow the CAD drawings of led screen structure from professional LED screen manufacturer for safety. Most important, if the building getting higher, the LED billboard screen should be larger to watch at long distance.
How can we protect our outdoor led screen in the hard environment?
- Anti-High temperature
Keep the advertising display screens in a good ventilation condition, and add cooling equipment to the display screen when necessary, such as installing some air conditioner or fan inside to help the display screen to dissipate heat.
- Anti-typhoon
The engineering unit must design and install in strict accordance with the typhoon-resistant grade standards, and at the same time have a certain seismic capacity to ensure that the outdoor LED display will not fall and cause casualties and other hazards. When the typhoon is coming, you have to turn off the main power switch and controller.
- Waterproof
There is a lot of rain in the Asia-Pacific and South America, so the LED display itself must have a high waterproof protection level to avoid rain erosion. In the outdoor use environment, the outdoor LED display should reach the IP65 protection level, the module should be encapsulated by glue, and brush three anti-paint in the front and back of modules PCB.The waterproof box should be selected, and the module and the box should be connected with a waterproof rubber ring. All the screen panels should be strict waterproof test before package.
- Direct lightning protection
All the PCB board of led screen modules should be designed by EMC & CB & UL standard with ground wire way. Besides, if the outdoor LED large screen is not within the direct lightning protection range of nearby tall buildings, a lightning rod should be installed on or near the top of the steel structure of the display screen and power switch.
- The interior of the screen should be well ventilated
When the screen is powered on, it will generate a certain amount of heat. If the heat cannot be discharged and accumulated to a certain extent, the internal ambient temperature will be too high, which will affect the work of the integrated circuit? Seriously, it can lead to burnout. The display does not work. Therefore, it is necessary to do a good job of ventilation and heat dissipation measures inside the screen body, and the temperature of the internal environment should be kept between minus 10 degrees and 40 degrees.
6, Regular Maintenance
Please follow correct outdoor LED billboard switching sequence: A: First turn on the screen control device, and then run the screen control software. After stable operation, turn on the LED advertising screen. B: Turn off the screen first, and then turn off the computer.
During wet and cold seasons, outdoor LED billboards should run at least once every seven days. It is recommended to turn on the outdoor LED billboard more than once a month, and the lighting time must exceed 2 hours.
Regularly check outdoor LED billboards every day. If any improper problem and issue is found, it should be reported and replaced accessories in time.
