期刊
OPTICS EXPRESS
卷 21, 期 22, 页码 26269-26284出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.21.026269
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- Industrial Technology Research Institute, Taiwan
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. (C) 2013 Optical Society of America
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