Do you often see cool advertising screens in shopping malls or the shocking stage background at the concert? These LED displays that make people shine can't be achieved by simply finding a place to hang them up. Today we will talk about where these luminous "electronic canvases" should be placed - especially suitable for friends who are new to this industry, and will teach you step by step to avoid site selection minefields.

When I first entered the industry, I once installed a large outdoor screen for my client, but it turned out to be facing the sun at 3:00 pm. The screen was white when the test was started, and the customer was so angry that he slapped his thighs. I only found out later that​What we need to consider when choosing a site is not only "let it go", but also calculate the invisible factors such as light angle and flow distribution​​. Now let me share with you the experience of over the years of hard work.

1. The golden position of different scenarios

​​1. Commercial advertising site selection​
The air-picking area of ​​the shopping mall atrium is definitely a place that military strategists must fight for, with concentrated traffic and broad vision here. There is a tip:​The installation height is recommended between 3-5 meters above the ground​, this range will not be blocked by the shelves, and it will allow people 20 meters away to see the content clearly. If it is a street-facing window, remember to select a transparent screen with a transparency of more than 85%, so that it will not block the lighting during the day and transform into a dynamic advertising wall at night.

​​2. Creative interaction site selection​
The floor tiles in the dance classroom should focus on load bearing and anti-slip. We've done the test,​The screens laid on wooden floors use 30% more anti-slip coating than tiled floors​​. If it is a curved screen of a shopping mall service desk, it must be tilted 15 degrees towards the main channel. This angle can not only attract the attention of passers-by, but also not make customers who are approaching feel uncomfortable.

​​3. Professional engineering site selection​
There is a cold knowledge about the fence screen of the stadium:​Optimal viewing distance = screen height × 10​​. For example, a 3-meter-high screen has the best appearance of 30 meters. For temporary display screens used on the construction site, remember to install them outside the crane’s operating radius, and it is best to install anti-collision guardrails - don’t ask me how I know, there was a screen last year that was “inadvertently injured” by an excavator.

2. Five essential elements for site selection

1. ​​Sight corridor​: The center point of the screen should be within the natural view of the pedestrian. Never let the audience raise their heads or bow their heads more than 15 degrees.
2. ​​Ambient brightness​​: The indoor screen avoids direct light sources, and the brightness of the outdoor screen in the morning and evening must be automatically adjusted by more than 30%.
3. ​​Power distance​: The line from the control box to the screen is best controlled within 50 meters. The signal attenuation will be obvious if it exceeds this distance.
4. ​Maintenance channel​: Leave at least 80cm wide space behind it, which is convenient for later replacement of modules (it has suffered from the loss of climbing ladders to repair screens)
5. ​​Safe spacing​: The outdoor screen should be at least 5 meters away from the high-voltage line, and the indoor screen should be kept at least 20cm from the spray head

3. Self-question and self-answer session

​​Q: What height is the most suitable LED screen installation?​​
A: It depends on whether the main audience is standing or sitting. The screen in the ticket office of the cinema is just 1.8 meters high, but the score screen in the basketball arena must be hung above 8 meters. Remember this formula:​Installation height = average visual height + (screen height ÷ 2)​​. For example, the average line of sight of the audience is 1.2 meters. With a 1-meter-high screen, the center point should be at 1.7 meters.

​​Q: What is the difference between indoor and outdoor location selection?​​
Take waterproofing as an example. Pay special attention when installing an indoor screen near the bathroom - although the product itself is moisture-proof, long-term water vapor will accelerate the aging of the line. The most fear of "darkness under the light" when choosing an outdoor site, do not install the screen directly under the street light, otherwise the picture will be white at night.

​​Q: How to judge whether the wall can bear load?​​
There is a local method: the load bearing capacity of ordinary brick walls shall not exceed 50kg per square meter. For advertising screens like 3 meters x 5 meters, the weight of the steel frame is at least 1 ton, and must be fixed to the load-bearing beam with wall bolts. If the old house does not dare to drill holes, you can consider the floor-standing bracket plan.

4. The technical path behind site selection

Nowadays, many high-end screens have smart light sense, but no matter how good the automatic adjustment is, it cannot resist the error in site selection. We have conducted a comparative experiment: the same 4,000 lumen outdoor screen is 18% energy-saving than the west-facing one. If the screen comes with a cooling system, remember to leave room for cooling behind - the most outrageous case I have ever seen is embedding the screen in an insulation wall, which often crashes in summer.

Location selection is like falling in love. It requires both people to be in love (the customer needs match the site conditions), and to be in a good match (the technical parameters and the installation environment are in line with each other). Next time you see a large screen flashing on the street, you might as well observe its location choices, and you may find the little tricks buried by the designer. By the way, if you are not sure about it, it is best to consult professionals with the site floor plan and Rizhao analysis map. After all, a screen will take five to ten years, and a proper location can save a lot of trouble in subsequent maintenance.

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