Electromagnetic wave shield film
Provided is an electromagnetic wave shield film having excellent blackness regardless of the constitutive composition of a black layer. An electromagnetic wave shield film 1 is provided on a surface thereof with a protective layer 2. The protective layer 2 has a black protective layer 21. The minimu...
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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
01.04.2023
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Subjects | |
Online Access | Get full text |
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Summary: | Provided is an electromagnetic wave shield film having excellent blackness regardless of the constitutive composition of a black layer. An electromagnetic wave shield film 1 is provided on a surface thereof with a protective layer 2. The protective layer 2 has a black protective layer 21. The minimum autocorrelation length Sal of the surface of the protective layer 2 is 10 [mu]m or less. The developed area ratio Sdr of the interface is 200% or more. The ratio [Sdr/Sal] of the Sdr to the Sal is at least 50. The brightness L* on the protective layer 2 side is preferably 24 or less. |
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Bibliography: | Application Number: TW20220109913 |