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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 22 — Nov. 4, 2013
  • pp: 26269–26284

Wide color gamut LCD with a quantum dot backlight

Zhenyue Luo, Yuan Chen, and Shin-Tson Wu  »View Author Affiliations

Optics Express, Vol. 21, Issue 22, pp. 26269-26284 (2013)

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We analyze the color performance and system efficiency of three commonly employed liquid crystal display modes with a blue LED-pumped red and green quantum dots (QDs) backlight. Based on the measured QD emission spectra, we can achieve 115% color gamut in CIE 1931 and 140% in CIE 1976 color space, while keeping the same energy efficiency as conventional backlights. Next, we apply multi-objective optimization method to refine the QD emission spectra and find a fundamental tradeoff between display system efficiency and color gamut. This systematic photometric analysis also provides useful guidelines for further optimizing QD backlight design and display system efficiency.

© 2013 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(230.3720) Optical devices : Liquid-crystal devices
(250.5230) Optoelectronics : Photoluminescence
(330.1715) Vision, color, and visual optics : Color, rendering and metamerism
(250.5590) Optoelectronics : Quantum-well, -wire and -dot devices

ToC Category:
Optical Devices

Original Manuscript: August 12, 2013
Manuscript Accepted: October 10, 2013

Zhenyue Luo, Yuan Chen, and Shin-Tson Wu, "Wide color gamut LCD with a quantum dot backlight," Opt. Express 21, 26269-26284 (2013)

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