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32.4: Quantum Dot Light Emitting Diodes for Full‐color Active‐matrix Displays
Author(s) -
Kazlas Peter T.,
Zhou Zhaoqun,
Stevenson Matthew,
Niu Yuhua,
Breen Craig,
Kim SangJin,
Stecket Jonathan S.,
CoeSullivan Seth,
Ritter John
Publication year - 2010
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3500495
Subject(s) - quantum dot , light emitting diode , optoelectronics , electroluminescence , luminance , diode , active matrix , materials science , luminous efficacy , high color , quantum efficiency , optics , computer science , physics , nanotechnology , computer vision , color image , thin film transistor , image processing , image (mathematics) , layer (electronics)
Quantum dot light emitting diodes (QLEDs) are a printable thin film electroluminescent technology that delivers exceptional color and efficiency at low cost of manufacture for display and solid‐ state lighting applications. We report on our progress developing efficient, stable QLEDs for full‐color active‐matrix displays, including recent advances in device performance, lifetime and Cadmium‐free QLEDs. Current QLED devices exhibit peak luminance efficiencies exceeding 50 cd/A, luminous power efficiencies greater than 20 lm/W and operational lifetimes exceeding 300 hours at 1,000 nits. Our most recent QLED efficiency results suggest that today's QLED performance is within a factor of two of the theoretical limit.