2014年4月20日星期日

Relationship between pixel distance and viewing distance

Relationship between pixel distance and viewing distance

According to the working environment, LED display can be divided into indoor led screen, outdoor led screen and semi-outdoor led screen. There are some data in theory which can reflect the relationship between the pixel pitch and the best viewing distance (sheet 1)
The relationship between pixel pitch distance and the best viewing distance (sheet 1)

Spec (pitch)P5P6P7.62P8P10P12P16P20P25
Viewing distance (m)1114171823.528.235.546.9956.4

In the actual application, because of the limitation of led display installation environment and identify ability, led display’s smallest viewing distance is mean the shortest distance that can identify the text and picture showing. The shortest viewing distance and led specification are on below(sheet 2)
The smallest viewing distance and led display specification (sheet 2)

Viewing distance (m)3-55-88-1010-1212-1616-2020-2525 -
Spec
(pitch)
P3
P4
P4.75
P4.75
P5
P6
P7.62
P7.62
P8
P10
P10
P12
P12
P14
P16
P16
P20
P20
P25
P25
P31.25

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