# US 11,906,702 B2 · Anti-glare film, method for producing same, and use of same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,906,702 B2 - Document ID: US11906702B2 - Status: Granted - Kind: B2 - Application number: 16/651,739 - Filed: 2018-09-21 - Published: 2020-07-23 - Granted: 2024-02-20 - Earliest claimed: 2017-12-11 - Assignees: Daicel Corporation - Applicants: Daicel Corporation - Inventors: Yoshitaka Sugawara; Masaki Hayashi - Web page: https://patentgrep.com/patent/US11906702B2 ## CPC - G02B 1/118: having sub-optical wavelength surface structures designed to provide an enhanced transmittance, e.g. moth-eye structures - B32B 7/02: Physical, chemical or physicochemical properties - B32B 7/023: Optical properties - G02B 1/111: using layers comprising organic materials - G09F 9/00: Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00) - H05B 33/02: Details - H05B 33/10: Apparatus or processes specially adapted to the manufacture of electroluminescent light sources - G02F 1/133502: {Antiglare, refractive index matching layers} - H10K 59/8791: {Arrangements for improving contrast, e.g. preventing reflection of ambient light} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract An anti-glare film is prepared which have a ratio R/V of a scattered specular reflection intensity R to a total V of scattered reflection intensity being from 0.01 to 0.12 and an absolute value of a chromaticity b* of transmitted light being 3 or less. The anti-glare film includes a transparent substrate layer, and an anti-glare layer formed on at least one surface of the transparent substrate layer. The anti-glare layer may be a cured product of a curable composition including one or more types of a polymer component and one or more types of a curable resin precursor component, and in particular, at least two components selected from a polymer component and a curable resin precursor component can be phase separated through liquid phase spinodal decomposition. This anti-glare film can achieve non-coloring properties and anti-glare properties in a compatible manner. ## Claims ### Claim 1 An anti-glare film having a ratio R/V of a scattered specular reflection intensity R to a total V of scattered reflection intensity being from 0.01 to 0.08, a haze being 50 to 98%, a 60° gloss being 0.2 to 10% and an absolute value of a chromaticity b* of transmitted light being 3 or less, wherein the scattered specular reflection intensity R is a scattered reflection intensity measured by a goniophotometer at an opening angle of 1 degree in a scattered reflection direction when visible light is projected at a surface of the anti-glare film, being a measurement target, at an angle of 45 degrees from a normal line, and the total V of scattered reflection intensity is a total of scattered reflection intensity measured by a goniophotometer at an opening angle of 1 degree at each degree from −45 degrees to +45 degrees, including 0 degrees, with respect to the scattered reflection direction when visible light is projected at the surface of the anti-glare film, being the measurement target, at an angle of 45 degrees from a normal line. ### Claim 2 (depends on 1) The anti-glare film according to claim 1, comprising: a transparent substrate layer; and an anti-glare layer formed on at least one surface of the transparent substrate layer, wherein the anti-glare layer is a cured product of a curable composition comprising one or more types of a polymer component and one or more types of a curable resin precursor component. ### Claim 3 (depends on 2) The anti-glare film according to claim 2, wherein at least two components selected from the polymer component and the curable resin precursor component are able to be phase separated through liquid phase spinodal decomposition. ### Claim 4 (depends on 2) The anti-glare film according to claim 2, wherein the polymer component comprises a (meth)acrylic polymer optionally having a cellulose ester and/or a polymerizable group. ### Claim 5 (depends on 2) The anti-glare film according to claim 2, wherein the cured resin precursor component comprises at least one type selected from polyfunctional (meth)acrylate, epoxy (meth)acrylate, polyester (meth)acrylate, urethane (meth)acrylate, and silicone (meth)acrylate. ### Claim 6 (depends on 2) The anti-glare film according to claim 2, wherein the curable resin precursor component comprises a silica nanoparticle and/or a fluorine atom. ### Claim 7 (depends on 1) A method for producing the anti-glare film described in claim 1, comprising: curing a curable composition by heat or an active energy ray. ### Claim 8 (depends on 7) The method for producing the anti-glare film according to claim 7, further comprising: phase separating, through liquid phase spinodal decomposition, at least two components selected from a polymer component and a curable resin precursor component by applying a curable composition comprising one or more types of polymer components and one or more types of curable resin precursor components on a support and drying, wherein in the curing, a phase separated curable composition is cured by heat or an active energy ray. ### Claim 9 (depends on 1) A display device comprising the anti-glare film described in claim 1. ### Claim 10 (depends on 9) The display device according to claim 9, wherein the display device is an organic EL display or a liquid crystal display. ### Claim 11 A method of increasing anti-glare properties and transparency of an anti-glare film, comprising: adjusting a ratio R/V of a scattered specular reflection intensity R to a total V of scattered reflection intensity being in a range from 0.01 to 0.08, adjusting a haze being in a range of 50 to 98%, a 60° gloss being in a range from 0.2 to 10% and adjusting an absolute value of a chromaticity b* of transmitted light being in a range 3 or less, wherein the scattered specular reflection intensity R is a scattered reflection intensity measured by a goniophotometer at an opening angle of 1 degree in a scattered reflection direction when visible light is projected at a surface of the anti-glare film, being a measurement target, at an angle of 45 degrees from a normal line, and the total V of scattered reflection intensity is a total of scattered reflection intensity measured by a goniophotometer at an opening angle of 1 degree at each degree from −45 degrees to +45 degrees, including 0 degrees, with respect to the scattered reflection direction when visible light is projected at the surface of the anti-glare film, being the measurement target, at an angle of 45 degrees from a normal line. ### Claim 12 (depends on 3) The anti-glare film according to claim 3, wherein the polymer component comprises a (meth)acrylic polymer optionally having a cellulose ester and/or a polymerizable group. ### Claim 13 (depends on 3) The anti-glare film according to claim 3, wherein the cured resin precursor component comprises at least one type selected from polyfunctional (meth)acrylate, epoxy (meth)acrylate, polyester (meth)acrylate, urethane (meth)acrylate, and silicone (meth)acrylate. ### Claim 14 (depends on 4) The anti-glare film according to claim 4, wherein the cured resin precursor component comprises at least one type selected from polyfunctional (meth)acrylate, epoxy (meth)acrylate, polyester (meth)acrylate, urethane (meth)acrylate, and silicone (meth)acrylate. ### Claim 15 (depends on 3) The anti-glare film according to claim 3, wherein the curable resin precursor component comprises a silica nanoparticle and/or a fluorine atom. ### Claim 16 (depends on 4) The anti-glare film according to claim 4, wherein the curable resin precursor component comprises a silica nanoparticle and/or a fluorine atom. ### Claim 17 (depends on 5) The anti-glare film according to claim 5, wherein the curable resin precursor component comprises a silica nanoparticle and/or a fluorine atom. ### Claim 18 (depends on 2) A display device comprising the anti-glare film described in claim 2. ### Claim 19 (depends on 3) A display device comprising the anti-glare film described in claim 3. ### Claim 20 (depends on 4) A display device comprising the anti-glare film described in claim 4.