QD Vision, developer
of nanotechnology-based solutions for displays and lighting, announced it has
achieved significant improvements in brightness, efficiency and lifetime thresholds
for its Quantum Light" product platform, advancing its quest to make quantum-dot-based
light-emitting devices (QLEDs) deliver best-in-class performance among display
The company announced that red QLEDs fabricated in its device laboratory have
achieved external quantum
efficiencies (EQEs) greater than 7% and demonstrated the highest reported brightness"more
than 25,000 nits"for a quantum-dot LED. The company said its red devices
(with a CIE x, y coordinate of 0.68, 0.32) achieved luminance efficiency of
3-4 cd/A at high brightness values ranging from 1,000-10,000 nits, with device
lifetimes ranging from hundreds to thousands of hours at 100 nits. The company
announced its yellow QLEDs demonstrated a peak brightness of more than 41,000
nits, a peak luminance efficiency of 13 cd/A (at 1500 nits) and a peak luminous
power efficiency of 14 lm/W (at 300 nits) at a CIE x,y color point of (0.58,
0.42); all three peak luminance and efficiency values are the highest ever reported
for any type of QLED. The company also announced significant progress in delivering
Cadmium-free QLEDs, achieving EQEs greater than 3%.
"QD Vision's Quantum-Light" platform is approaching luminance, power,
lifetime and other performance thresholds required by a broad range of commercial
lighting and display systems, bringing us a giant step closer to delivering
the benefits of QLEDs to consumer and industrial markets," said Dr. Dan
Button, President and CEO of QD Vision. "By lowering power consumption
while dramatically improving lighting performance in nearly any system configuration
or format, QD Vision's quantum-dot technology has the potential to dramatically
improve any lighting or display application where color, power and design matter."
According to Dr. Seth Coe-Sullivan, Chief Technology Officer and co-founder
of QD Vision, the company has improved overall performance of its Quantum Light"
QLEDs by 2x in efficiency and over an order of magnitude in stability over the
past 18 months.
"In addition to best-in-class color tuning and saturation, the Quantum
Light" platform is delivering the best efficiency at high brightness values
we have ever seen reported worldwide," Coe-Sullivan said.
The company's success in improving performance of Cadmium-free quantum-dot-based
LEDs also demonstrates its progress toward delivering green-tech solutions for
commercial applications. "In addition to enabling solid-state lighting
solutions that dramatically reduce power consumption, QD Vision's Quantum-Light"
platform is being designed to address global environmental needs," Button
"QD Vision's goal is to deliver the next generation of lighting and display
products by taking advantage of the substantial performance advantages made
possible by quantum-dot technologies," Coe-Sullivan said. "With our
Quantum Light" platform, we are starting to see performance levels that
will enable entirely new lighting and display applications that overcome the
trade-offs of current LED and OLED technologies that span color, power efficiency