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LED Display Facts

What is a LED?

A light-emitting diode (LED) is a semiconductor device. You can see it as an electronic device that permits current to flow in One direction. And it illuminates when electricity passes through it.  It is typical that LED’s expected life is 100,000 hours.

What is a Pixel?

A pixel is a point of light and the smallest element of an LED display. An LED display is manufactured by an array of pixels. Pixels are capable to present letters, graphics, animations and videos.

What is a Hybrid?

The Hybrid pixel technology was the first hot swappable LED display pixel of any kind in the US market and is still the leading technology of its kind.  Each Hybrid pixel unit has a mini circuit board inside and individual gold plated pin connecting the unit to the display surface. This makes replacing damaged LED pixels extremely easy. Also what makes hybrid pixel unique is not just the hot swappable part, but the surface design of the hybrid unit. Instead of 1 single horizontal glare protection louver over a huge quantify of LED diodes individual louvers for each LED diodes are used, creating maximum glare and reflection protection as well as contrast enhancement and light focusing. The uneven display area surface as a result of utilizing the Hybrid pixels further enhances a display’s contrast under direct sunlight.

What is Pitch?

Pitch is a terminology to determine the resolution of the LED display. In Hyoco’s LED displays, pitch refers to the distance between the centers of two adjacent pixels, and expresses in millimeters.

The smaller the pitch size, the higher picture resolution will be represented because of more pixels per area. On the contrary, the bigger pitch size, because of less pixels, will represent lower picture resolution.

How do you  Measure Brightness?

Nit is a unit to measure luminance over a square meter. It is also well-known as meter-lamberts.       NIT = meter-lamberts = candela per square meter (cd/m2).

Why Does Brightness Matter?

During nights, generally speaking, LED displays are always readable and working fine. However, to ensure your LED display is readable and outstanding against sunlight during day times is the key to turn the traffic to your business. LED displays are well-known as the brightest product in the market.  Getting your message out there 24 hours a day, 7 days a week!

What Does Master / Slave Mean?

Master / Slave refers to a display’s configuration.  One side, the “Master”, acts as the display’s main control center and relays messages to the “Slave” side of the display.  When a display is shipped as a “Master / Slave”, it contains two single sided displays that are configured to work as one.

What is Matrix Resolution?

An LED display’s matrix resolution represents how many pixels there is on the display. A display with a matrix resolution of 320 (h) by 480 (w) means it has 480 pixels from side to side and 320 from top to bottom. The higher the matrix resolution is, the better an image is represented on the display. As we discussed earlier, for a fixed display area, selecting a smaller pitch will increase the matrix resolution of the display which means better image quality.

Two perspectives to know when choosing LED display:

  • Cost Effective Advertising Medium
  • Level of Return on Your Investment

“For business that choose to enhance their signage with an electronic message display, the owners typically see an increase in business of 15% to 150%.”  United States Small Business Administration on Signage for business

Monochrome vs Grayscale vs Full Color

Monochrome Displays enables shades of a single color in Red or in Amber. If you are looking for a text-oriented display for your business, monochrome display is the ideal one you would like to try.

Grayscale Displays, portrays the different intensity of a color ranging from the intensity black to the intensity white.  Grayscale display enables 256 different levels of shades. If you are looking for more color shades available display, grayscale type of display is the ideal one you would like to try.

Full Color Displays, also called RBG  for Red, Blue Green, enables to produce a complex array of colors. If you are looking for LED display that is capable of playing videos or slideshows to enhance your advertising tools previously only available on TV, RGB display is the ideal one you would like to try.

Viewing Distance and Speed?

The distance between your sign and its viewers is the number one factor in determining the type of LED display you will need.  Longer distances require less resolution and shorter distances require higher resolutions.  In addition, if you are traveling at 55 MPH on a freeway, and the sign is 600 feet away at a truck stop, the text letters must be at least 20 inches tall to be legible.  Likewise, if you are standing 60 feet away from a street level sign, the letters need only be two inches tall to be legible.  The rule of thumb is that you need 1 inch for every 30 feet of viewing distance.

What Does Viewing Angle Mean?

Viewing angle is the range that LED display achieves its widest visual performance. LED displays’ average viewing angel is 140° (Horizontal) x 50° (Vertical). Viewing distance is the estimated distance that LED display achieves its farthest visual performance.

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-beams” 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. It is important to make sure that you know what LED diode density is being used.

Character Height

In addition to the discussion of viewing distances, it is important to know that at least seven rows of diodes are required to make one text character. For multiple lines of text, it requires an eighth line as a separator. This means that for each line of text there needs to be eight rows of pixels, and that those eight rows together measure the required character height.

What is Louver Design?

Louver design is an idea to reduce the waste of LED brightness while against the sunlight.  Some products in the market only offer One louver per pixel.  The LED light output performs the best brightness, the strongest contrast, and the widest viewing angle and distance in the most energy-efficient mode when it has the proper louver design.

As always, If you still have any questions,
please just let us know so we can better serve you!

911ThinkSigns / 911 Think Signs has changed its name to 911 CASPER Systems / 911 C.A.S.P.E.R. Systems.  We have a unique Fundraising and Donation system that also provides life saving Alerts and Warnings through FEMA’s IPAWS / Integrated Public Alerts and Warning System; along with our CASPER Alert Feature that enhances AMBER ALERTS, SILVER Alerts, BOLO, and other public and Community messages. This is to help Non-profit Organizations / nonprofit organizations ease their financial problems due to Budget Cuts, Grants decreases, and subsidize the public financial help these organizations are not getting through fundraising and donations through our Sponsor / Sponsortizing system.  Communities will benefit using the CASPER System since it helps keep these Non-profit Organizations open and helps keep taxes down since it will avoid the need to have property tax increases, fire taxes and ambulance charges.  Here is a short example of the nonprofit organizations that this helps:  Volunteer fire departments, rescue squads, EMS, parks and recreation, sports complexes, private and public schools, colleges, universities, home owners associations, freemasons, animal shelters, Red Cross, and any other tax free 501 C 3 non-profit organizations.  To find out more information please contact Chuck Freels or Chaz Freels,  276-229-4200.