32.4: Quantum Dot Light Emitting Diodes for Full‐color Active‐matrix Displays

Abstract

Abstract 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.