Alas, have you ever been confused about this? When shopping malls open, they need to install large screens, and when they are renting equipment on the concert stage, they are always afraid of getting stuck. As a display engineer who has been in the industry for ten years, I will talk to you about the tricks in this industry today - I will ensure that I can avoid detours for three years after reading it.

​​Site selection core indicators​
Last month, I helped a music festival to process large-screen location selection. Their original location made 30% of the audience feel dizzy as if they were too close to their sight. Remember these three golden ratios:

• ​​Listance of sight = screen height × 3​(The 10-meter high screen must retreat to 30 meters away)
• ​​Elevation angle ≤20 degrees​(like the angle of the selfie stick lifted over the head)
• ​​Dark area​ (Avoid direct sunlight)

Here is a cold knowledge - large screens with curves leave 15% more safe distance than flat screens. Just like driving and turning, this detail can avoid 99% of the blind spots of perspective.

​​Scene adaptation formula​
When a stadium was renovated last year, we used this universal adapter:

For example: a transparent screen with a 86% transmissiveness is most suitable for shopping mall windows, which can not only play advertisements without blocking store decorations. This technology that requires both displaying effects and maintaining transparency is much more difficult than simply stacking parameters.

​​Tap Avoidance Guide​
Some customers installed screens in coastal cities, and the color difference occurred in three months. Be careful about these three minefields:

• × No ordinary waterproof screen is needed for humidity > 80% (you need to choose one with anti-salt spray coating)
• × Use conventional heat dissipation structures with a good condition (liquid cooling system is required)
• × Locations with traffic volume > 5000/hour must be maintained and designed in advance (otherwise the maintenance will be closed)

Special reminder: Don’t rush to change the screen when encountering reflection problems, try adjusting the elevation angle of the screen. A case in a commercial center shows that 5-degree elevation adjustment can reduce light pollution complaints by 73%.

​Editor's opinion​
After seeing too many projects over the years, I found an iron rule: those who are willing to spend time in the design stage of the plan can save 90% of the trouble in the later operation. It’s like building a house, only when the foundation is laid can a tall building be built. Recently I saw a fenced screen used in an international event, which is both a security barrier and a live broadcast. This kind of multi-purpose design is the real skill. Next time you pass by the commercial street, you might as well pay attention to those window screens that are free of incongruity - those that can integrate advertisements into the building must be hard-core products that have put in real effort.

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