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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:将包含量子点的薄膜与光学滤光片结合使用的方法和设备,用于标牌和照明应用
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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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