Multi-component films for optical display filters
First Claim
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1. An optical display filter comprising:
- a transparent substrate; and
a multi-layer stack disposed on the substrate, the stack having at least four dyads, wherein at least one of the dyads is composed of;
an electrically-conductive layer; and
a transparent organic layer with a refractive index greater than 1.49;
wherein the multi-layer stack disposed on the substrate has a reflectance for light having a near-normal incident angle of not greater than 8% of actinic radiation between the wavelengths of 450 nm and 650 nm, a reflectance for light having a 70°
incident angle of not greater than 25% of actinic radiation between the wavelengths of 450 nm and 650 nm, a sheet resistivity of less than about 2 ohms/square, and an average electromagnetic interference shielding of at least 35 dB for frequencies in a range of 100 MHz to 1 GHz.
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Abstract
Provided are multi-component films useful as optical display filters. The optical display filters include a multi-layer stack that contains at least one organic layer. The filters have high visible light transmittance, low visible light reflection, and provide electromagnetic interference shielding.
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Citations
22 Claims
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1. An optical display filter comprising:
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a transparent substrate; and a multi-layer stack disposed on the substrate, the stack having at least four dyads, wherein at least one of the dyads is composed of; an electrically-conductive layer; and a transparent organic layer with a refractive index greater than 1.49;
wherein the multi-layer stack disposed on the substrate has a reflectance for light having a near-normal incident angle of not greater than 8% of actinic radiation between the wavelengths of 450 nm and 650 nm, a reflectance for light having a 70°
incident angle of not greater than 25% of actinic radiation between the wavelengths of 450 nm and 650 nm, a sheet resistivity of less than about 2 ohms/square, and an average electromagnetic interference shielding of at least 35 dB for frequencies in a range of 100 MHz to 1 GHz. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification