WINDOW FILM AND METHOD FOR OPERATING THE SAME
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United States of America Patent
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Mar 27, 2025
app pub date -
Jun 19, 2024
filing date -
Jun 19, 2024
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Abstract
Provided is a variable-transmittance window film capable of being operated in four different colors, and the window film of the present invention includes a first film, a second film spaced apart from the first film, a third film interposed between the first film and the second film, a suspended particle layer between the first film and the third film, and a polymer dispersed liquid crystal layer between the second film and the third film, wherein the polymer dispersed liquid crystal layer includes a dye having a second color complementary to a first color of the suspended particle layer.
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