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Enhanced Backlight Solutions (EBS) from Future Electronics |
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EBS™ Brightness
All EBS™ units are specified at 1000 nits, although units are not limited to that brightness level. Each unit is designed using LUXEON®
III LEDs, which can be driven at various power levels. The brightness is directly affected by how hard the LEDs are driven (see Figure 2).
Increasing power will deliver increased brightness, but will also lead to more heat being produced, so an appropriate thermal
management system is required (see 'Thermal Control' section).
Figure 2 - EBS™ Brightness Variations
| Panel Size |
# of LUXEON® III LEDs |
NITS when LEDs are
driven at 1 Watt |
NITS when LEDs are
driven at 2 Watts |
| 5.5" |
8 |
1000 |
2400 |
| 6.5" |
12 |
1000 |
2200 |
| 8.4" |
16 |
1000 |
2100 |
| 10.4" |
20 |
1000 |
2100 |
| 12.1" |
24 |
1000 |
2000 |
MTBF
MTBF calculations of LCDs are based upon the half brightness point of the CCFL tube – typically 25K-50K hours (minus the CCFL
backlight, a LCD typically has an MTBF of around 100K hours – it is usually the light source that fails before the LCD itself). EBS™,
if driven at its specified wattage to obtain 1000 nits, uses less than 1 watt per LED thus increasing the overall lumen maintenance of the
LED and therefore the solution to well over 100K hours.
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