25 February 2014 Prospects of quantum-dots-based liquid-crystal displays
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Proceedings Volume 9005, Advances in Display Technologies IV; 90050G (2014); doi: 10.1117/12.2044412
Event: SPIE OPTO, 2014, San Francisco, California, United States
Abstract
We report a systematic photometric study of LCD based on quantum dot (QD) backlight, and find the optimal emission spectrum combination in terms of system efficiency and wide color gamut. A QD-based LCD has potential to achieve 120% AdobeRGB color gamut in CIE 1931 and 140% in CIE 1976 color space, while keeping the same energy efficiency as conventional backlights. Moreover, we present a transmissive color display based on voltage-stretchable liquid crystal droplet and quantum dot backlight. This polarizer-free display exhibits highly saturated colors, wide viewing angle and reasonably good contrast ratio. QD backlight allows LCD to display original colors with high fidelity, which makes LCD more competitive to organic LED. The prime time for QD-enhanced LCDs is near.
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Zhenyue Luo, Su Xu, Yuan Chen, Yifan Liu, Shin-Tson Wu, "Prospects of quantum-dots-based liquid-crystal displays", Proc. SPIE 9005, Advances in Display Technologies IV, 90050G (25 February 2014); doi: 10.1117/12.2044412; https://doi.org/10.1117/12.2044412
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KEYWORDS
LCDs

Optical filters

Quantum dots

Light emitting diodes

Liquid crystals

LED backlight

CIE 1931 color space

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