Tag: LED display resolution calculation, LED module pixel pitch, LED screen visual distance

In the LED display engineering design and project budget, often you need to use the pixel pitches, module size and viewing distance calculations, VERYPIXEL here lead you to learn how to calculate these elements.

Calculation Method of Pixel Pitch

Pixel pitch is the center distance between one pixel to another neighboring pixel.

Each pixel can be a tiny LED lights [ such as : PH10 ( 1R ) ], two LED lights [ such as : PH16 ( 2R ) ], four LED lights [ such as : PH16 ( 2R1G1B ) ].
P16 dot pitch  is : 16MM; P20 dot pitch is : 20MM; P12 dot pitch is : 12MM...

The relationship of pixel pitch and modules ( cabinet ) size
1. cabinet length = length pixel counts * pitch
For example: A PH16 module length = 16 dots*16mm=256mm; Height = 8 dots*16mm=128mm
2. Panel Width = width pixel counts * pitch

Calculation Method of cabinet/the whole screen resolution
1. cabinet resolution =length*width/pixel pitch
2. The whole screen resolution = 1,000,000/pixel pitch/pixel pitch
For example : Resolution of P16 per sqm =1,000,000/16/16=3906 DOT

Calculation method of LED modules numbers

1. Method One
The number of modules= Total area ÷ module length ÷ module height
For example: There is a 10㎡ P16 outdoor single color LED display, we calculate it has to use the number of modules are : 10㎡÷0.256m ÷0.128m=305.17678≈305 PCS

2. Method two ( a more accurate method )
The total number of LED modules = Length(the number of modules) × Height(the number of modules)
For example: there is an P16 outdoor LED screen, the length module number=5m ÷0.256m=19.53125≈20 PCS; the height module number=2m÷0.128m=15.625≈16 PCS
The total number of LED modules = 20PCS *16PCS=320 PCS

Calculation method of LED display visual distance

RGB Distance tri - color blending into a single color:  LED full color range(M) = pixel Pitch ( mm ) x500/1000
Minimum viewing distance: LED display screen visible distance(M) = pixel Pitch ( mm ) x1000/1000
The best viewing distance: LED display the best viewing distance(M)= Pixel Pitch ( mm ) x3000~ pixel Pitch ( mm ) /1000
The most distant viewing distance : The farthest distance (M)= LED display screen height ( m ) x30 times

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