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Full-colour QLED displays move closer to reality
QD Vision’s quantum dot LEDs are claimed to achieve significantly higher efficiency and performance improvements over their equivalent OLED counterparts.
QD Vision, a developer of nanotechnology-based products for displays and solid state lighting, has taken major strides towards improving the efficiency and performance of its quantum dot LED (QLED) technology.
The company will present these technology achievements, which move low-cost, full-colour QLED displays closer to reality, at SID 2011 on Tuesday, May 17, session 12 at 2:20pm.
QLEDs offer all of the functional benefits of emissive display technologies, with the added advantage of simplified manufacturing processes and the potential to consume half of the power of the most efficient OLEDs.
QD Vision’s red, green and blue QLEDs now meet or exceed the 1953 NSTC colour standard without using colour filters or secondary effects. The exceptional colour performance of QLEDs translates into a fundamental 30-40% luminous efficiency advantage over the best known OLED technology.
“The unique combination of extraordinary colour, high efficiency, demonstrated stability and low-cost patterning makes QLEDs the next breakthrough in electroluminescent technology for displays and solid-state lighting applications,” said Seth Coe-Sullivan, QD Vision Chief Technology Officer.
QD Vision says it’s deep red QLEDs now offer greater efficacy at equivalent colour than the best reported phosphorescent OLEDs, and its green and blue QLEDs match the performance of fluorescent OLEDs, but with far superior colour performance. For example, red QLEDs fabricated by QD Vision consistently achieve peak external quantum efficiencies (EQEs) of more than 18% and efficacies of more than 22 lm/W and 18 Cd/A, at 1931 CIE colour coordinates of (0.68, 0.32).
