SunBright EM® Displays
Brilliant and Comfortable, for Everyone Viewing
ScoreTronics scoreboards use SunBright EM® displays instead of LEDs. SunBright EM® displays use electromagnetic technology to reflect the abundant energy from the sun and other ambient light sources to produce displays that are brilliant in direct sunlight and superior to LED in other lighting conditions.
LED's work by using a pin-head sized piece of material to produce a tiny amount of light and narrowly focusing it forward. This results in over-bright conditions (often uncomfortable and distracting) when viewed directly head-on, and inadequate brightness (difficult to see and drowned out by sunlight) when viewed at angles other than head-on.
SunBright EM® displays have uniform, constant brightness at all viewing angles. And because they are getting their optical brightness from the sun and ambient light, they are inherently self-adjusting to all brightness conditions, from direct sunlight to overcast. They're always comfortably bright, and at all angles--not "get out your sun glasses" distracting at some angles and "what does it say?" at other angles.
You'll notice that LED scoreboard displays are always
photographed head-on (directly in front). This is where the LED is the
brightest, but the brightness falls off as you view at increasing angles to the
side. In scoreboard applications, especially in portables which are viewed
closer, only a small number of people are viewing the unit head-on, and the
majority of people are viewing the unit at angles, which is where LED displays
are at their worst. You won't see LED Scoreboards photographed at angles,
where the majority of the audience is viewing.
Quality Font Visibility
displays use large rectangular line segments that make the numbers much easier
to read than a small number of tiny points of light trying to simulate a wide line. The physics and optics of the human eye
allow for number visibility of 40 feet per inch tall of display height, meaning
that a 4" tall display has a visibility of 160 feet for average vision, but
this applies only to displays with fully formed characters, like a doctors' eye
chart. The crude approximation of character strokes by using a few points
of light (LEDs) makes displays that are much more difficult to read, especially at
and 40 feet per inch with crude character approximation LED displays is simply
Some people think that LED's last forever. This is simply not true. All LEDs will significantly fade in brightness over time, and the industry standard specification is "Down to 50% brightness in 50,000 hours, when operated at room temperature (68F)". The brightness degradation gets much faster if the LED is operated at above room temperature, which is common with LED's in enclosures, like scoreboards. LEDs are NOT LIFETIME displays. To see this, look at an LED display in an elevator that has been in service a number of years--you'll notice that the segments that are used the most (like floor #1) are much dimmer than the lesser-used segments.
SunBright EM® displays produce constant output over their lifetime. The only change over time is a slight fading of the yellow color towards white, which is still very visible against the black background. The mechanisms that move the segments to be visible to the audience or away from the audience have cycle lives in the millions of cycles, and it is not possible in any normal scoreboard application to wear one out. If you manage to become the first person to wear out a SunBright EM® display in a scoreboard application, we will repair or replace it for free, regardless of age.
No, the displays aren't colored green (but we could make them colored green if you wanted). They are "Green" environmentally. SunBright EM® displays electromagnetic technology uses NO power when they are displaying a static (constant) number, and take only a tiny amount of energy to change the display when a change is needed. Compare this to LEDs, which consume power at all times to display a number. You can see the effect of the near-zero power consumption of the SunBright® displays in our scoreboard battery life specifications, which are the highest by far in the industry. (500 hours of running time on a set of AA batteries on the baseball model)
SunBright EM® displays have only one disadvantage to LEDs--cost. Electromagnetic display technology is more expensive to make than LEDs. LEDs are made by the millions in China, India, Pakistan, and Singapore (there no US producers of LEDs for scoreboards), verses SunBright® EM displays being made by the thousands in the United States. The goal at ScoreTronics is to build the BEST scoreboard, even it it has to cost a little more. Our thousands of owners, without exception, feel that it's money well spent.