LED Classes Room


What is an LED? How does it work? How do I know what product for me?
Are you asking yourself the right questions? Let us help you understand LED a little more. PixelDiode prides itself on carrying products for virtually any type of installation you can dream of.
In today’s digital world, LED can be utilized for basic messaging, all the way to high-resolution video playback.
From concerts and events, to permanent install for advertising or branding in your retail or corporate environment,
LED can transform your space to an unforgettable one.

What is an LED?

In the simplest terms, a light-emitting diode (LED) is a semiconductor device that emits light when an electric current is passed through it. Light is produced when the particles that carry the current (known as electrons and holes) combine together within the semiconductor material.
Types of LED’s
   Indoor LED Displays: SMD Red Green Blue LEDs in one package. Some outdoor displays do utilize SMD LEDs.
     SMD LED Advantages:
       Wide-viewing angle
       No color shift at extreme viewing angles
       Smooth color from short distance

   Outdoor LED Displays: DIP Individual Red Green Blue LEDs
     DIP LED Advantages:
       Weather proof
       Extremely bright
       Great for longer viewing distance

Main LED materials

      The main semiconductor materials used to manufacture LEDs are:
              Indium gallium nitride (InGaN): blue, green and ultraviolet high-brightness LEDs
              Aluminum gallium indium phosphide (AlGaInP): yellow, orange and red high-brightness LEDs
             Aluminum gallium arsenide (AlGaAs): red and infrared LEDs
              Gallium phosphide (GaP): yellow and green LEDs


Determining the right brightness for your application is extremely important. Having a screen that is not bright enough, or too bright, can render your installation useless and ineffective. Here are a few things to consider when designing your LED wall:
                  Indoor Brightness: 1000-1500 nits is enough for most indoor use
                  Outdoor Brightness at close viewing: 2000-3000 nits is usually enough for most situations
                Outdoor Brightness with direct sun: up to 5,000 + nits should be enough in most situations

Resolution Vs Viewing Distance

Understanding how viewing distance and resolution co-related can not only help you better pair yourself with the right product but also save you a ton of money. Viewing distances are somewhat subjective, but can roughly be calculated based on the display type and the distance from the display. Each display will have a recommended minimum viewing distance that may vary based on application and your intended use.

Resolution is the physical distance measured in millimeters from the center of one led to its closest neighboring led. The higher the number, the less pixels and the lower the resolution; the smaller the number, the more pixels and higher the resolution. Let’s take one more step. Resolution is the number of pixels contained in the physical area of your LED display. The more pixels you have per square meter, the more detail your wall will display. Overall resolution is determined by display size, pixel technology, pixel pitch and viewing distance.