Antireflection films for use with displays
Assignee3M Innovative Properties Company
InventorsA. Nader Hawa, Georgio Trapani, Tiffany E. Lund, Richard G. Pawlak, Pradnya V. Nagarkar
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Abstract
An antireflection film and method of making same includes a substrate having a first surface and a second surface, the substrate being a circular polarizer, a linear polarizer, or a louvered plastic film, an inorganic layer deposited on the first surface of the substrate, and an optically active polymer layer formed by curing a curable composition in situ on the inorganic layer, the polymer layer having a refractive index not greater than about 1.53 over the wavelength range of 400 nm to 700 nm and a thickness of from about 20 nm to about 200 nm.
Claims54
An antireflection film comprising:
- a substrate having a first surface and a second surface, wherein the substrate is a circular polarizer, a linear polarizer, or a louvered plastic film;
- an inorganic layer deposited on the first surface of the substrate;
- and
- an optically active polymer layer formed by curing a curable composition in situ on the inorganic layer, the polymer layer having a refractive index not greater than about 1.53 over the wavelength range of 400 nm to 700 nm and a thickness of from about 20 nm to about 200 nm.
An optical system comprising:
- a display device;
- and
- an antireflection film disposed on the display device, wherein the antireflection film comprises a substrate having a first surface and a second surface, wherein the substrate is a circular polarizer, a linear polarizer, or a louvered plastic film, an inorganic layer deposited on the first surface of the substrate, and an optically active polymer layer formed by curing a curable composition in situ on the inorganic layer, the polymer layer having a refractive index not greater than about 1.53 over the wavelength range of 400 nm to 700 nm and a thickness of from about 20 nm to about 200 nm.
A method for producing an antireflection film comprising:
- providing a substrate having a first surface and a second surface, wherein the substrate is a circular polarizer, a linear polarizer, or a louvered plastic film;
- depositing an inorganic layer on the first surface of the substrate;
- depositing a layer of a curable composition on the inorganic layer;
- and
- curing the deposited curable composition to form an optically active polymer layer having a thickness of from about 20 nm to about 200 nm and a refractive index not greater than about 1.53 over the wavelength range of 400 nm to 700 nm.
A method for producing an optical system comprising:
- providing a display device;
- and
- disposing an antireflection film on at least a portion of the display device, the antireflection film comprising a substrate having a first surface and a second surface, wherein the substrate is a circular polarizer, a linear polarizer, or a louvered plastic film, an inorganic layer deposited on the first surface of the substrate, and an optically active polymer layer formed by curing a curable composition in situ on the inorganic layer, the polymer layer having a refractive index not greater than about 1.53 over the wavelength range of 400 nm to 700 nm and a thickness of from about 20 nm to about 200 nm.
Dependencies are inferred from the claim text.