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Energy Express

Energy Express

  • Editor: Christian Seassal
  • Vol. 22, Iss. S2 — Mar. 10, 2014
  • pp: A511–A520

Color-by-blue display using blue quantum dot light-emitting diodes and green/red color converting phosphors

Ji Hye Oh, Ki-Heon Lee, Hee Chang Yoon, Heesun Yang, and Young Rag Do  »View Author Affiliations

Optics Express, Vol. 22, Issue S2, pp. A511-A520 (2014)

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We report a novel full-color display based on the generation of full-color by a highly efficient blue QD-LED light approach, or so called color-by-blue QD-LED display. This newly proposed color-by-blue QD-LED display combines a blue CdZnS/ZnS QD-LED blue subpixel and excitation source with front-emitting green/red phosphor subpixels. It is carefully estimated that the detailed display characteristics as well as full color-conversion and reasonable device efficiency of blue, green, and red satisfy the minimum requirements for display application. Also, we would like to emphasize that the proposed blue, green, and red device shows maximum luminance of 1570, 12920, and 3120 cd/m2, respectively, luminous efficiency of 1.5, 12.1, and 2.5 cd/A, respectively, and external quantum efficiency of 6.8, 2.8, and 2.0%, respectively. It is expected that full color generation by color-by-blue QD-LED will lead to further technological advancements in the area of efficient and facile display applications.

© 2014 Optical Society of America

OCIS Codes
(220.0220) Optical design and fabrication : Optical design and fabrication
(230.0230) Optical devices : Optical devices
(230.1480) Optical devices : Bragg reflectors
(230.3670) Optical devices : Light-emitting diodes

ToC Category:
Light-Emitting Diodes

Original Manuscript: January 6, 2014
Revised Manuscript: February 19, 2014
Manuscript Accepted: February 23, 2014
Published: March 3, 2014

Ji Hye Oh, Ki-Heon Lee, Hee Chang Yoon, Heesun Yang, and Young Rag Do, "Color-by-blue display using blue quantum dot light-emitting diodes and green/red color converting phosphors," Opt. Express 22, A511-A520 (2014)

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