How to spell a good effect of curved LED display

Science

An arc-shaped building needs to be installed with an LED display screen. Whether the specification and model modules in the design plan can be assembled to create a perfect arc-shaped effect is related to the radius of the arc of the building, and is also directly related to the shape of the bottom shell of the module.

The LED display screen can be used as a curved screen or a circular screen because the bottom shell of the module kit has a draft angle!

How to spell a good effect of curved LED display

As shown in the figure above, if the module specifications and draft angle are known, and the modules are bent at the maximum angle, the radius of the arc formed by the modules can be calculated with the help of CAD.

How to spell a good effect of curved LED display

The following are the most common LED display module specifications and common bottom shell draft angles (1, 1.5, 2, 3 degrees) and the minimum radius of the arc they can form:

How to spell a good effect of curved LED display

Therefore, if you want to evaluate whether a circular arc building can be used as a curved screen, you need to first understand the draft angle of the bottom shell of the LED display module from the manufacturer, and calculate the radius of the arc building, and then compare it with the data in the table. In comparison, as long as the arc radius is greater than the minimum radius, a perfect arc screen or ring screen can be assembled, and if it is smaller than the minimum radius, there will be gaps.

The radius of an arc can be calculated like this:

How to spell a good effect of curved LED display

1. As shown in the figure above, first pull the wire to measure the chord length b of the arc;

2. Then measure the vertical distance a (chord height) from the center point of the chord to the top of the arc;

3. It can be obtained from the Pythagorean theorem: R2=(R-a)2+(b/2)2; under conversion, that is:

How to spell a good effect of curved LED display

4. After calculating the radius R, compare it with the data in the above table, if the radius is larger than the minimum radius in the table, it is suitable for arc screen or ring screen.

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