An LED (light emitting diode) is an efficient, super bright alternative to traditional incandescent light bulbs. LEDs are plastic capsules containing a specific chemical compound on a microscopic wafer that emits light when subjected to an electrical current. When red, green and blue LEDs are clustered together and shine at their full brightness, the combined light emission appears white to the human eye. By varying the intensity of the three colors all other colors and shades can be created. Not all LEDs are created equal. Individual LEDs are available in many grades of quality and shades of color. It is imperative that high grade red, green and blue LEDs be used in the manufacturing process.
A pixel is a cluster of LEDs (one red, one blue and one green) which, as a component of the overall image, represents one point of illumination. The combination of these individual levels of the three colors forms the display image.
The matrix of a particular exterior-use electronic display refers to the number of vertical pixels by the number of horizontal pixels in the display. For example, if a display has a matrix of “200 by 704”, this means it has 200 pixels from top to bottom and 704 pixels from left to right. In video applications, much like your television set, these numbers might be reversed. For instance, a high-definition TV today is commonly referred to as “1920 by 1080”, where 1920 represents pixels from left to right, and 1080 represents pixels from top to bottom.
Pixel pitch is the distance between adjacent pixels, measured in millimeters from the center of one pixel to the center of the other. We offer displays in 6mm, 10mm, 12mm, 16mm, 20mm and 25mm. The resolution of a display depends on the number of LEDs per square foot, which is also referred to as “LED density.” This is the main factor in determining a display’s image quality. The more LEDs per square foot, the sharper the image. LED density should be higher at closer viewing distances. Resolution is the total number of pixels in a display. Given a fixed square footage, the “tighter” the pitch, the higher the resolution.
Which pixel pitch is right for you is based on a combination of factors, which include:
- 1) The viewing distance, or range of distances, of your primary audience
- 2) The content you intend to play on the display (i.e. text only, or images/videos of people, places, food, etc)
- 3) How big your sign is
- 4) Your budget
One size does not fit all. Even informed customers need guidance in this area to make sure the right sign is purchased for a given application. We can help you determine the best solution for you.
Optimal viewing range is based on legibility of the smallest “standard” (seven pixel height) alpha‐numeric character for any given display pixel pitch. LED message centers are very dynamic and the viewing distances in the chart below are for general reference. Using different font types and styles can affect the legibility of the display greatly. With enough distance, virtually any pitch of display will blend into a continuous image – where pixilation (seeing individual diodes or pixels) is no longer present in the display. If a user is only displaying text, pixilation may not be a large concern. However, this usually becomes a much bigger issue if the user is intending to run images or video on the display.
LED displays vary in ‘absolute maximum brightness’ by pitch. The quality of diode used in a display can have a dramatic impact on brightness as well. We use top quality diodes from major world-renowned companies to ensure displays that are more than bright enough to compete with ambient sunlight.
Combining different intensities of each Red, Green and Blue (RGB) LED in a pixel allows the ability to create up to 18 quadrillion colors, far more than the human eye can reasonably discern. When combined with different dimming levels, this number of possible colors can actually become well over a thousand times higher.
Our displays are built to withstand extreme weather. To protect against water damage, our display cabinets are sealed and the individual components are encased in a sealant, which prevents water from reaching the electrical leads and wiring. For protection against lightning storms, our digital technology is always installed with maximum grounding.
Our digital systems can withstand being pelted with rocks, bottles and cans. The durable face materials of our displays are resistant to such attacks. In extreme cases where there is damage to certain areas of the display, this will only require the damaged modules to be replaced, and not the entire display.
We schedule the content and messaging using the Scala Digital Signage Content Management Software.
Our team of engineers will first assess the structure before any planning work is done.
We have our team of engineers and service technicians ready to resolve any technical issues at hand. Just give us a call and we will dispatch someone to help diagnose and perform any repairs to your display.