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METHOD AND APPARATUS USING A COMBINATION OF QUANTUM DOT-CONTAINING FILMS WITH OPTICAL FILTER FILMS FOR SIGNAGE AND ILLUMINATION APPLICATIONS
METHOD AND APPARATUS USING A COMBINATION OF QUANTUM DOT-CONTAINING FILMS WITH OPTICAL FILTER FILMS FOR SIGNAGE AND ILLUMINATION APPLICATIONS
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机译:包含量子点的薄膜和光学滤光片的组合的方法和装置用于标志和照明应用
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摘要
An illuminated sign comprises a source of blue light; a quantum dot-containing film that produces green light when illuminated by the source of blue light; and, a patterned blue cutoff filter in optical communication with the quantum dot-containing film configured to allow a mixture of excess blue light from the source of blue light and green light from the quantum dot-containing film to pass through the pattern. The mixture of blue light and green light produces a pseudo white light. The illuminated sign may thus comprise pseudo white letters and/or graphics on a luminous green background.
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