Outdoor LED display: the area is generally tens of square meters to hundreds of square meters or even larger, high brightness, large viewing angle, can work in the sun, with certain wind, rain, and waterproof functions. Mainly used in outdoor advertising, stations, squares, shopping malls, etc.
Outdoor LED displays usually appear in the form of outdoor media. Outdoor media refers to the media for advertising information set up on the roofs of major buildings and in front of commercial areas, roadsides and other outdoor venues. The main forms include road LED displays, LED electronic displays, LED full-color screens, and LED screens. , Balloons, airships, carriages, large inflatable models, etc.
1. Attention to the use of outdoor LED display
With the continuous development of the urban construction process, outdoor LED display screens are being used more and more as a new media advertising carrier. Outdoor LED displays can indeed bring a certain improvement to the image of the city, and the forms of advertising are also flexible and diverse. However, there are still some matters needing attention during the use of outdoor LED displays:
Structural design
Outdoor LED displays generally have a large area, so they are still very heavy. For the LED display installed outdoors, the homepage needs to pay attention to the structural design. The installation structure should take into account the main factors such as wind resistance, earthquake resistance, and load bearing; secondly, the shape, structure, and exterior decoration design of the screen should be coordinated with the attached building or environment; moreover, consider the local environmental factors, such as Air humidity, air salinity content (coastal cities), etc.
Outdoor led advertising screen
light pollution
With the popularization of LED displays, the concept of "light pollution" has been introduced. So is LED display considered "light pollution"? The international definition of light pollution is usually divided into three categories: white light pollution, artificial daylight pollution and color light pollution. At present, my country only has relevant regulations on the glass curtain wall in the pollution of white light, and there are no relevant regulations on artificial daylight and color light pollution. But considering that color light pollution does cause people to feel uncomfortable, it should be classified as "light pollution." When designing the display screen, the problem of preventing and controlling the light pollution of the display screen has been considered.
2. How to install outdoor led advertising screen
1. Reasonably plan the area and installation location of the display screen
According to the viewing distance and viewing angle, the surrounding environment, and the requirements of the display content, reasonably plan the display area and location. Instead of blindly pursuing a large area and a prominent location.
2. Selection and design of content to be played
Large-scale giant display screens are public media, including public welfare, advertising, instruction, etc. When we choose the content to be broadcast, we must reach an agreement with the public's requirements to avoid the mentality of refusal to watch it.
3. Multi-level gray correction technology improves color softness.
4. Installation steps of outdoor led advertising screen
LED display installation step one: frame splicing
Assembling the outer frame of the led display is to splice the cut profiles together. The common profiles on the market are mainly divided into square and round shapes, but the assembly method is the same.
LED display installation step two: fix the unit board
1. Place the unit board in the frame (pay attention to the front and back of the frame, and the grooved side is the front). At this time, the position of installing the back strip must be quite accurate, or you must reinstall it from the beginning.
2. After the back strip is fixed, the frame can be removed and the magnet can be installed.
3. After the magnet is installed, close the frame and let the magnet and the back strip attract, and the fixing of the unit board is completed.
LED display installation step three: connect the flat cable and the upper and lower power cables
LED display installation step 4: fixed power supply and control card
When connecting the power supply and the unit board, pay attention to the positive and negative poles. It is recommended to use SVV21.0 soft core wire, which is 1 square double-strand soft core wire.
LED display installation step 5: control card and unit board cable connection (particularly important)
Before connecting, please read carefully and understand that the screen is not fixed on the wall. This is the most critical step. You can first check whether the screen is installed correctly through the test button.
Three, outdoor LED advertising screen installation precautions
1. Lightning protection measures for installation of buildings and screens
In order to prevent the display from being attacked by strong electromagnetic waves caused by thunder and lightning, the display body and the outer packaging protective layer must be grounded, and the resistance of the grounded line should be less than 3 ohms, so that the current caused by thunder can be timely From the ground line.
2. Waterproof, dustproof and moisture-proof measures for the entire screen
Seamless connection should be made at the junction of the box body and the box body, as well as the junction of the screen body and the force-loaded installation object, to avoid water leakage and dampness. There must be good drainage and ventilation measures inside the screen. If there is water accumulation inside, it can be dealt with in time.
3. About the choice of circuit chip
In Northeast my country, the temperature in winter can generally reach ten degrees below zero. When selecting circuit chips, it is necessary to choose industrial-grade chips with a working temperature of minus 40 degrees Celsius, which means 80 degrees Celsius. Low causes the display to fail to start.
4. Ventilation measures should be taken inside the screen
When the screen is energized and working, it will generate a certain amount of heat. If this heat is not discharged and accumulated to a certain extent, it will cause the internal environment temperature to be too high, which will affect the operation of the integrated circuit, and can cause burnout in serious cases. The display does not work. Therefore, it is necessary to do a good job of ventilation and heat dissipation measures inside the screen, and the temperature of the internal environment is kept between minus 10 degrees and 40 degrees.
5. The choice of highlight wick
Choosing a high-luminance LED tube allows us to display good results under direct sunlight, and it can also enhance the contrast with the surrounding environment, so that the audience of the picture is wider. Locally, there is still a good performance.
