LED Display Brightness & Viewing Angle

LED Display Brightness & Viewing Angle

Brightness
 
The Brightness of an LED display is generally expressed by a numerical value in NITs. A NIT is defined as unit of illuminative brightness described as candela output per square meter (cd/M2). The higher the number of NITs, the brighter the display. In general, Indoor LED screen brightness is around 800~1500nits. Outdoor requires more than 5000nits.

View Angle

Diodes can put out a single, narrow beam of light like a flashlight, or they can output a wide array across a room like a light bulb. Diodes output about the same amount of light no matter what type they are - but the "high-beam" diodes with a narrow angle focus more light into one small spot, whereas the "wide angle" diodes spread their light across the horizon. So, if you were to stand in front of a sign made from "high-beam" diodes with narrow viewing angles, you would see an extremely bright sign if you stood directly in front of it, but the minute you walked away from the small spot light of its focus, you would see nothing but black.

With wide viewing angle LEDs, the image is visible in consistent brightness and uniform colors throughout the entire viewing range of the display. 


 

 

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