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LED shows screen key shows plotting solves a specification
From;    Author:Stand originally
1) physics index is apart from PixELpitch(to nod span like element center)
Photograph adjacent resembles the distance between element center. (Unit: Mm)

Density Density(check the number)

The quantity that orders like element on unit area (unit: Dot / M2) . Check the number is put in fair consideration to concern with dot span
Computational formula is: Center of ÷ resembling element is apart from density =(1000)
LED shows the density of screen is higher, picture is clearer, optimal watch a space scope is less.





Optimal apparent distance


Density (dot / M2)Dot span (Mm)

Optimal apparent distance (rice)

 

 

Recently

Farthermost

44100

4.75

2

26

40000

5

3

28

17200

7.625

4

42

10000

10

5

55

6944

12

8

66

3906

16

15

88

2500

20

20

110

2066

22

20

140

Watch distance graphic representation




Flatness Levelupdegree

The glow diode, concave and convex deviation when comprising LED to show screen is planar like group of element, indication module, indication model. The flatness of LED indication screen is bad easy bring about when watching, screen body color is inhomogenous.



Index of 2) report function

Grayscale of gray scale grade

LED shows screen is same in class brightness from the darkest to the brightest between the brightness that can distinguish is progressional. Gray scale namely so called color rank or ash rank, it is the degree of light and shade that points to brightness. To the indication technology of digitlization, gray scale is the payoff that indication colour counts. Generally speaking gray scale is taller, indication color is richer, the picture is more exquisite also, behave rich details more easily.

Gray scale grade basically depends on systematic A/D changes digit. Of course video processing chip of the system, memory and the support that transmission system wants to offer corresponding digit just go. Wait to do not have gray scale, 8 class, 16 class, 32 class, 64 class, 128 class, 256 class commonly, LED shows the gray scale order and degree of screen is higher, color is richer, colour is more gorgeous; Conversely, indication color is onefold, change is simple.
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