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QLED Displays Move Closer to Reality

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WATERTOWN, Mass., June 2, 2011 — QD Vision Inc., a developer of nanotechnology-based products for displays and solid-state lighting, has announced major advances in the efficiency and performance of its quantum dot LED (QLED) technology. The company presented its achievements at the SID 2011 trade show on May 17.

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 the power of the most efficient OLEDs. QD Vision’s red, green and blue QLEDs now meet or exceed the 1953 NTSC color standard without using color filters or secondary effects. The color performance of QLEDs translates into a fundamental 30-40 percent luminous efficiency advantage over the best known OLED technology.

“The unique combination of extraordinary color, high efficiency, demonstrated stability and low-cost patterning makes QLEDs the next breakthrough in electroluminescent technology for displays and solid-state lighting applications,” said Dr. Seth Coe-Sullivan, QD Vision chief technology officer.

The company said that its deep-red QLEDs now offer greater efficacy at equivalent color than the best reported phosphorescent OLEDs, and that its green and blue QLEDs match the performance of fluorescent OLEDs, but with superior color performance. For example, its red QLEDs consistently achieve peak external quantum efficiencies of more than 18 percent and efficacies of more than 22 lm/W and 18 Cd/A, at 1931 CIE color coordinates (0.68, 0.32).

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Jun 2011
The use of atoms, molecules and molecular-scale structures to enhance existing technology and develop new materials and devices. The goal of this technology is to manipulate atomic and molecular particles to create devices that are thousands of times smaller and faster than those of the current microtechnologies.
1953 NSTC color standardAmericasBusinessConsumerdisplay technologyDisplaysDr. Seth Coe-Sullivanindustriallight sourcesMassachusettsnanonanotechnologyOLEDsQD Vision Inc.QLEDsquantum dot LEDsSID 2011LEDs

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