1 .Pixel pitch sed screen Pixel pitch is decided by the screen area, viewing distance, the effect of playing the screen and so onelection
1) Led screen Pixel pitch is decided by the screen area, viewing distance, the effect of playing the screen and so on, the smaller pixel pitch, the smoother picture.
2) Outdoor advertising main products: P6/ P8 / P10 / P16 / P20 / P25 and so on.
Indoor advertising main products: P4 / P5 / P6 and so on.
3) Different display screen resolution requirements:
(1) Text display screen: depending on the size of the text and definition requirement;
(2) Ordinary video display: ≥ 320 × 240 dots ;
(3) Digital standard DVD display: ≥ 640 × 480 dot matrix;
(4) HD screen complete display: ≥1280 × 720 dot matrix.
Resolution refers to the number of pixels in led screen
How to calculate the resolution：
Length Resolution = Length ÷ pixel pitch ;
Height resolution = height ÷ pixel pitch ;
2. How to calculate the scale and size:
Usually high-definition movies and video ads are designed to 16: 9 or 4: 3 ratio, so the proportion of conventional display is generally in accordance with the ratio of 16: 9 or 4: 3 design. Customer gives the designated area , how to calculate the width and height of the display?
Take 50sqm led screen as a sample:
(1) the entire screen area of 50 square meters, according to the ratio of 16: 9; width is set to 16x, the height is set to 9x;
16x * 9x = 50
x2 = 50/144
x = √ 50/144 = 0.59
Length = 16x = 16 * 0.59 = 9.44m, Height = 9x = 9 * 0.59 = 5.31m
(2) the entire screen area of 50 square meters, according to 4: 3 ratio; width is set to 4x, the height is set to 3x;
4x * 3x = 50
x2 = 50/12
x = √ 50/12 = 2.04
Width = 4x = 4 * 2.04 = 8.16m, Height = 3x = 3 * 2.04 = 6.12m
3. Viewing angle, viewing distance calculation
Perspective : is the observation of the brightness of the LED panel down to the normal brightness of the direction of the direction of 1/2, the same plane of the two observation directions and the angle formed by the normal direction. Divided into horizontal and vertical viewing angle.
Viewing angle: It is just to see the direction of the image content on the screen, and the angle formed by the display normal.
The best perspective: is able to see exactly the content of the display, and not color cast, the image content of the clearest direction and the normal angle