Learning Center



What is an LED?

Light emitting diodes (LED) are diodes that emit light when illuminated by the movement of electrons in the semi-conductor chips.

Advantages of
LED Lighting

  • LEDs for sign illumination are rated for continual use for up to 100,000 hours.
  • LEDs radiate a "cold light", meaning they generate very little heat compared with other lighting technologies. This also means less wasted energy.
  • LEDs are energy efficient meaning they consume less energy to produce brighter illuminated displays that creates much greater readability and flexibility of use than traditional signs.
  • LED Technology has made LED displays very affordable & energy effecient.
  • LEDs are made in a wide range of colors. Mixing these colors generates millions of colors.


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Terminology

Pixel

A pixel (short for picture element) is an image component of an LED display's overall resolution. The more pixels used, the higher the resolution the better picture quality. In an LED display, a pixel can consist of 1 or more LED diodes. A monochrome display pixel has 1 or more LED`s that are the same color. A color LED display pixel has LED diodes of different colors.

Pitch

Pitch is the distance from the center of a pixel to the center of an adjacent pixel. Pitch is very important because for the same display area, the pitch determines the resolution of the display. For smaller, tighter pitches, you have more pixels per unit area thus a better resolution.

Matrix Resolution

Represents how many pixels are on a display. A LED sign with a matrix resolution of 24 (h) by 88 (w) means it has 88 pixels from side to side and 24 from top to bottom. The higher the matrix resolution, the better an image appears.

RGB Display

Red, green and blue (RGB) are the 3 basic colors human eyes can perceive. By using an appropriate combination of red, green and blue intensities, many colors can be represented. An RGB display simply means it's a full color display.

NIT- Unit of Brightness

NIT is the brightness measurement unit the industry usually uses to calculate the brightness of an LED display. It is calculated as the following:

NIT = cd per pixel X pixels per M2

Generally speaking, the average sun light brightness in North America is about 5000NITs. An outdoor LED display needs to be at least 5000NITs bright.

Viewing Angle

Viewing Angle