WHITE-LIGHT-TRANSMITTING COMPOSITE FILM LAYER, PREPARATION METHOD THEREFOR AND USE THEREOF
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United States of America
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Issued Date -
Feb 20, 2025
app pub date -
Jan 7, 2022
filing date -
Jan 7, 2022
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Abstract
A white-light-transmitting composite film layer is provided with a medium layer and an indium coating, wherein the medium layer is closer to a white light source than the indium coating. The medium layer is a transparent coating containing 0.5-8% of a blue pigment and 0-2% of a purple pigment; or the medium layer is a transparent plastic film containing 0.5-8% of a blue pigment and 0-2% of a purple pigment. The white-light-transmitting composite film layer utilizes the principle of complementary colors in chromatics, and the special medium layer is attached to one side of the indium coating, so that the composite film layer can realize white light transmission, and the color temperature value of transmitted white light is 5200-7200 K.
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