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Color separation system with angularly positioned light source module for pixelized backlighting
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DOI：10.1364/OE.18.000645.png)
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Abstract
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A color-separation system that angularly positions color LEDs to produce color separation and a lens array to focus this light onto the pixels is proposed. The LED rays from different incident angles are mapped into corresponding sub-pixel positions to efficiently display color image, which can be used to replace the absorbing color filter in the conventional liquid crystal layer. In this paper, the prototype backlight has been designed, fabricated and characterized. The measurement results of this module showed that a gain factor of transmission efficiency three times more than that of conventional color filters efficiency improvement and a larger color gamut are expected. (C)2010 Optical Society of America
Keywords:
LIQUID-CRYSTAL DISPLAY
GRATINGS
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3.3
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6.1W
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14.3W
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