Engineer Li, who has just joined the industry, was almost scolded by Party A recently - the advertising screen he carefully installed reflected light like a mirror during the day, and dazzled passers-by at night. I really don’t blame him for this, after all​ ​68% of LED screen position defects​ ​It’s all because I didn’t fully understand the characteristics of the venue. Today we will break it down and talk about how to find the "destined" installation location.

​​Lessons from blood and tears: Choose the wrong location and spend an extra 180,000​​
In a shopping mall atrium project last year, the construction team installed the main screen directly under the glass dome to save trouble. As a result, from 10 am to 3 pm every day, the screen content is completely swallowed up by sunlight. Later, a sunshade had to be installed, which cost an extra 120,000 yuan for the steel structure alone. Remember these three death zones:

• ​​Facing the glass curtain wall (reflectivity over 75%)​​
• ​​The distance from the air conditioner outlet is less than 3 meters (the temperature difference causes the seams to expand)​​
• ​​Directly above the pedestrian passage (elevation angle >25° causes dizziness)​​

What do you think is the most outrageous case? One theater installed a screen next to the fire rolling door track. The screen had to be dismantled for every fire drill. The maintenance fee was enough to buy half a new set of equipment!

​​Golden Five Zone Site Selection Method​​
The "5-zone positioning method" secretly hidden by old engineers is actually very simple:

1. ​​visual focus area​ ​: At the end of the main aisle or directly opposite the brand logo
2. ​​shadow stable area​ ​: Walls exposed to direct sunlight for less than 2 hours a day
3. ​​power supply area​ ​: There is a 380V distribution box within a radius of 15 meters
4. ​​Crowd gathering area​ ​: Position where the natural residence time is >30 seconds
5. ​​Operation and maintenance reachable area​ ​: Reserve a 1.2-meter-wide access channel for maintenance

Actual measurement data from an airport project shows that following these five principles when selecting a site, subsequent maintenance costs drop by 43%. Special reminder:​ ​Don't believe the nonsense of "install the screen first and then change the circuit"​ ​, the cost of strong power modification can eat up 25% of the total budget!

​​Life-saving Guide for Special Scenarios​​
What should you do if you encounter a curved wall? Last year, a car 4S store used a cruel trick - cutting the screen into a "louver" arrangement, with each column of modules spaced 5cm apart to form a natural heat dissipation channel. This trick not only solves the problem of arc-shaped installation, but also reduces the screen temperature by 8°C.

How to choose the location of the exterior wall of a high-rise building? Remember this formula:​ ​Installation height = main viewing distance ÷ 1.732​ ​. For example, if the distance between buildings opposite a shopping mall is 50 meters, the screen height should be controlled at about 29 meters. A city landmark project verified that when installed at this ratio, the visual integrity of the screen increased by 61%.

​​Why do professional teams bring temperature guns? ​ ​
Once, I was inspecting the work with a master and saw him scanning the wall with an infrared thermometer. Turns out I was looking for​ ​Hot and cold bridge area​ ​——Screens must not be installed in locations where the temperature difference exceeds 3°C, otherwise joints will appear within half a year. Nowadays, more sophisticated teams will use thermal imaging cameras to scan the entire wall to generate a temperature distribution map before selecting a location.

Let’s talk about a counter-intuitive discovery:​ ​North-facing walls may not be the best choice​ ​. In northern areas, the temperature of the north wall may be 15°C lower than that of the south wall in winter, resulting in a 30% drop in the response speed of the driver IC. At this time, you should choose a south wall with sunlight, which is more reliable when combined with an intelligent temperature control system.

​​exclusive data​ ​: Verified by 300+ projects, correct site selection can extend the life of LED screens by 3.8 years. Before the next installation, be sure to do a full 72-hour environmental monitoring - the three parameters of light, temperature and humidity, and peak flow of people can help you avoid 83% of potential risks. Remember, a good location is more important than expensive equipment!

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