LIGHT CONTROL FILM
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United States of America Patent
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Issued Date -
Mar 7, 2024
app pub date -
Aug 31, 2023
filing date -
Sep 5, 2022
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Abstract
A method of manufacturing a light control film. The method includes providing a plurality of alternating layers of transparent material and light absorbing material, where the alternating layers of transparent material and light absorbing material are stacked in a stacking direction. The method also includes cutting, with a triangle wave-shaped edge, across the plurality of alternating layers of transparent material and light absorbing material in a first cutting plane and a second cutting plane thereby resulting in the light control film including a serrated first surface and a serrated second surface, wherein each of the first and second cutting planes is orientated at an angle less than 90° to the stacking direction. The triangle wave-shaped edge includes a cutting edge with a triangular wave shape perpendicular to the first and/or second cutting plane.
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