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Proceedings Paper

Research on color matching of LED backlight for large-color-gamut LCD application
Author(s): Meng Liang; Manning Fan; Debo Guo; Guangyi Liu; Guohong Wang; Fuhua Yang; Liangchen Wang; Yiping Zeng; Jinmin Li
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Paper Abstract

Comparing with the conventional CCFL (Cold Cathode Fluorescent Lamp) backlight, three-basic-color LEDs backlight has some advantages such as good color reproduction, long life and lead free etc. Theoretically, the color gamut is determined by x, y coordinates of the three basic colors in CIE chromaticity diagram, and the x, y coordinates of each basic color can derived from the relative spectrum distribution (RSD) of the LED. In this paper, the red, green and blue LEDs' RSD models are established to calculate and analyze the color gamut of a backlight. By simulating those models, the relationships that the color gamut of a LED backlight varies with each color are analyzed, and the optimum combination of three colors is obtained within the given wavelengths ranges. Moreover, the combinations of three colors for the gamut of 115% NTSC and 110% NTSC are plotted in pictures, respectively.

Paper Details

Date Published: 4 January 2008
PDF: 5 pages
Proc. SPIE 6841, Solid State Lighting and Solar Energy Technologies, 68410Y (4 January 2008); doi: 10.1117/12.760014
Show Author Affiliations
Meng Liang, Institute of Semiconductors (China)
Manning Fan, Institute of Semiconductors (China)
Debo Guo, Institute of Semiconductors (China)
Guangyi Liu, Institute of Semiconductors (China)
Guohong Wang, Institute of Semiconductors (China)
Fuhua Yang, Institute of Semiconductors (China)
Liangchen Wang, Institute of Semiconductors (China)
Yiping Zeng, Institute of Semiconductors (China)
Jinmin Li, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 6841:
Solid State Lighting and Solar Energy Technologies
Jinmin Li; Yuwen Zhao; Nuofu Chen; Ling Wu; Yubo Fan; Vladimir M. Andreev; Yong-Hang Zhang; Jai Singh; Michael E. Coltrin, Editor(s)

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