Customized screen protection film for electronic device display

Abstract

A screen protective film is described that is configured to be peelably attached to an optical coating on a glass-containing display of an electronic device. The protective film comprises: a glass-containing substrate comprising an outer major surface and an inner major surface; an anti-reflection (AR) coating on the outer major surface; and an intermediate layer on the interior major surface for peelable attachment to an optical coating on a display. The intermediate layer includes an adhesive, has a physical thickness of about 10 [mu] m to 500 [mu] m, and one or more refractive indices of about 1.2 to 1.6. In addition, the average photopic reflectance of the screen protection film may be less than 2% for all incident angles from 0 DEG to 30 DEG. The intermediate layer may include an optically clear adhesive (OCA) layer, a polymer-containing layer, and a peelable adhesive layer. A shatterproof (AS) film may be between the intermediate layer and the substrate. The intermediate layer and / or the AS film may be a cycloolefin, cellulose triacetate, or polyurethane.

Description

[0001] CLAIM OF PRIORITY

[0002] This application claims priority under 35 U.S.C. § 119 to U.S. Provisional Application No. 63 / 601,349, filed November 21, 2023, and priority under 35 U.S.C. § 119 to U.S. Provisional Application No. 63 / 452,722, filed March 17, 2023. The entire contents of each of these applications are hereby incorporated by reference herein in their entirety for all purposes. TECHNICAL FIELD

[0003] The present disclosure relates to screen protection films with AR coatings and in some cases, anti-shatter (AS) films for electronic device displays that have their own AR coatings, as well as articles including AR display devices and such AR screen protection films. BACKGROUND

[0004] Optical interference coatings consisting of thin films are commonly used to alter the reflection spectrum of display substrates. For display devices, higher contrast, larger color gamut, and other desirable optical performance characteristics are obtained by reducing reflectivity. Recently, multilayer anti-reflective (AR) coatings have been successfully used on display substrates in various display devices (e.g., cover glasses of consumer mobile phones) to reduce reflectivity. In addition, some of these AR coatings have also been successfully configured to enhance the scratch resistance of these display devices.

[0005] Users of these display devices sometimes use screen protection films that can have their own AR coatings (e.g., Amplify Glass) or can be configured only to provide mechanical functionality (e.g., scratch resistance and drop resistance). Screen protection films can also incorporate anti-shatter (AS) films to retain fragments of the protection film in the event that the protection film is inadvertently broken. Often, these users will proactively add screen protection films to their electronic display devices to enhance the mechanical performance (e.g., drop and / or scratch resistance) of the devices. In any of these cases, it is apparent that the combination of a screen protection film with AR coatings and possibly AS films with a display with or without AR coatings can result in undesirable or unintended optical effects, such as reduced reflectivity and / or contrast.

[0006] Thus, there is a need for screen protection films with AR coatings and, in some cases, AS films, that are tailored for electronic device displays that themselves have AR coatings to reduce or minimize reductions in reflectivity and / or contrast; and there is a need for cover articles that include an AR display device and an AR screen protection film that is tailored for the AR display device to reduce or minimize such reductions. The present disclosure addresses this and other needs. SUMMARY

[0007] In general, the present disclosure relates to screen protection films with AR coatings for electronic device displays that themselves have AR coatings, and articles that include an AR display device and an AR screen protection film. The disclosed screen protection films employ an AR coating disposed on a substrate (e.g., a glass substrate, Gorilla® glass substrate, Corning® Gorilla® Glass product, etc.), and an adhesive-bearing interlayer disposed on the substrate for releasably adhering to an optical coating (e.g., an AR coating) disposed on a glass-containing display of an electronic device. The interlayer can have one or more refractive indices, each in the range of about 1.2 to about 1.6. Further, when the screen protection film is releasably adhered to the display, the average photopic reflectance of the screen protection film is less than 2% for all angles of incidence from 0° to 30°. Gorilla In general, the present disclosure relates to screen protection films with AR coatings for electronic device displays that themselves have AR coatings, and articles that include an AR display device and an AR screen protection film. The disclosed screen protection films employ an AR coating disposed on a substrate (e.g., a glass substrate, Gorilla® glass substrate, Corning® Gorilla® Glass product, etc.), and an adhesive-bearing interlayer disposed on the substrate for releasably adhering to an optical coating (e.g., an AR coating) disposed on a glass-containing display of an electronic device. The interlayer can have one or more refractive indices, each in the range of about 1.2 to about 1.6. Further, when the screen protection film is releasably adhered to the display, the average photopic reflectance of the screen protection film is less than 2% for all angles of incidence from 0° to 30°.

[0008] According to one aspect of the present disclosure, a screen protection film is configured to releasably adhere to an optical coating disposed on a glass-containing display of an electronic device. The screen protection film includes a glass-containing substrate comprising an outer major surface and an inner major surface, wherein the inner major surface is opposite the outer major surface; an anti-reflective (AR) coating disposed on the outer major surface of the glass-containing substrate; and an interlayer disposed on the inner major surface of the glass-containing substrate. The interlayer is configured to releasably adhere to an optical coating disposed on a glass-containing display of the electronic device. The interlayer comprises an adhesive and has a physical thickness of about 10 pm to 500 pm. The interlayer has one or more refractive indices, and each refractive index of the interlayer is about 1.2 to about 1.6. Additionally, the average photopic reflectance of the screen protection film releasably adhered to the optical coating of the glass-containing display is less than 2% for all angles of incidence from 0° to 30°. This aspect can function as a screen protection film that is tailored for an electronic device with a glass-containing display and an AR coating to minimize or otherwise reduce reflectivity of the combined article.

[0009] According to an aspect of the disclosure, there is provided a screen protection film, the screen protection film comprising: a glass-containing substrate comprising an outer major surface and an inner major surface, wherein the inner major surface is opposite the outer major surface; an anti-reflective (AR) coating disposed on the outer major surface of the glass-containing substrate; and an intermediate layer disposed on the inner major surface of the glass-containing substrate. The intermediate layer comprises an optically clear adhesive (OCA) layer disposed on the inner major surface of the glass-containing substrate; a polymer-containing layer disposed on the OCA layer; and a peelable adhesive layer disposed on the polymer-containing layer. The total thickness of the OCA layer, the polymer-containing layer, and the peelable adhesive layer is about 10 pm to 500 pm. Additionally, the OCA layer, the polymer-containing layer, and the peelable adhesive layer each have a refractive index of about 1.2 to about 1.6. This aspect can function as a screen protection film that is tailored for electronic devices with glass-containing displays and AR coatings to minimize or otherwise reduce the reflectivity of the combined article.

[0010] According to an aspect of the disclosure, there is provided a screen protection film, the screen protection film comprising: a glass-containing substrate comprising an outer major surface and an inner major surface, wherein the inner major surface is opposite the outer major surface; an anti-reflective (AR) coating disposed on the outer major surface of the glass-containing substrate; an anti-shatter (AS) film disposed on the inner major surface of the glass-containing substrate; and an intermediate layer disposed on the AS film. The AS film comprises a first optically clear adhesive (OCA) layer disposed on the inner major surface of the glass-containing substrate; and a first polymer-containing layer disposed on the first OCA layer. The intermediate layer comprises a second OCA layer disposed on the first polymer-containing layer; a second polymer-containing layer disposed on the second OCA layer; and a peelable adhesive layer disposed on the second polymer-containing layer. In some embodiments of this aspect, the total thickness of the intermediate layer is about 10 pm to 500 pm, and the total physical thickness of the AS film is about 50 pm to 150 pm. Additionally, according to some embodiments of this aspect, the first and second polymer-containing layers, the first and second OCA layers, and the peelable adhesive layer each have a refractive index of about 1.2 to about 1.6. This aspect can function as a screen protection film that is tailored for electronic devices with glass-containing displays and AR coatings to minimize or otherwise reduce the reflectivity and / or contrast of the combined article.

[0011] According to one aspect of the disclosure, there is provided an article comprising: an electronic device including an anti-reflective (AR) coating disposed on a glass-containing display; and a screen protection film. The screen protection film includes: a glass-containing substrate including an outer major surface and an inner major surface, wherein the inner major surface is opposite the outer major surface; an AR coating disposed on the outer major surface of the glass-containing substrate; and an intermediate layer disposed on the inner major surface of the glass-containing substrate. The intermediate layer includes: an optically clear adhesive (OCA) layer disposed on the inner major surface of the glass-containing substrate; a polymer-containing layer disposed on the OCA layer; and a peelable adhesive layer disposed on the polymer-containing layer. The total thickness of the OCA layer, the polymer-containing layer, and the peelable adhesive layer is about 10 pm to 500 pm. Additionally, the OCA layer, the polymer-containing layer, and the peelable adhesive layer each have a refractive index of about 1.2 to about 1.6. Additionally, the glass-containing substrate includes a compressive stress region having a maximum compressive stress (CS) of at least 600 MPa and extending to a depth from the outer major surface. Additionally, the peelable adhesive layer is configured to peelably adhere to the AR coating disposed on the glass-containing display of the electronic device. This aspect can serve as an article including an AR screen protection film and an AR electronic device, wherein the AR screen protection film is tailored to ensure that the article has reduced or minimized reflectivity.

[0012] Additional features and advantages will be set forth in the detailed description that follows, and in part will be apparent to those skilled in the art from the description, or can be learned by practice of the embodiments described herein, including the detailed description that follows, the claims, and the appended drawings.

[0013] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only, and are intended to provide a further explanation of the nature and features of the claims. The accompanying drawings are included to provide a further understanding, and are incorporated in and constitute a part of this specification, illustrate one or more embodiments, and together with the description serve to explain the principles and operation of the various embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 、 1A , 1B and 1C are cross-sectional side views of an article including an AR screen protection film and an AR electronic device according to one or more embodiments of the disclosure;

[0015] Figure 1 D is a schematic view of an electronic device with an AR coating according to one or more embodiments of the disclosure;

[0016] Figure 1 Eis a schematic of an article of AR screen protection film for an electronic device according to one or more embodiments of the present disclosure comprising a peelably attachable AR screen protection film Figure 1 D

[0017] Figure 2A

[0018] Figure 2B Figure 2A

[0019] Figure 3 4

[0020] Figure 7 8

[0021] Figure 11 A Figures 3-6

[0022] Figure 11 B Figures 7-10

[0023] Figure 12

[0024] Figure 13A 13B

[0025] Figure 14 ​​​​​​​​​​​​​​​Contrast ratio (CR) as a function of display luminance for a screen protection film example having an AR coating on one major surface and an OCA layer / polymer-containing film interlayer structure on the other major surface disposed on and measured with a mobile phone device according to embodiments of the present disclosure and a bare phone device control. DETAILED DESCRIPTION

[0026] In the following detailed description, for the purposes of explanation and not limitation, example embodiments disclosing specific details are set forth to provide a thorough understanding of the various principles of the present disclosure. However, it will be apparent to one having ordinary skill in the art, upon reading this disclosure, that the present disclosure can be practiced in other embodiments that depart from the specific details disclosed herein. Moreover, descriptions of well-known devices, methods, and materials can be omitted so as to not obscure the descriptions of various principles of the present disclosure. Finally, where applicable, like reference numerals denote like elements throughout the various figures and the text.

[0027] In this document, ranges can be presented as from "about" one particular value and / or to "about" another particular value. When such ranges are expressed, another embodiment includes from the one particular value and / or to the other particular value. Similarly, when values are expressed as approximations by use of the antecedent "about," it will be understood that the particular value forms another embodiment. It will be further understood that each end point of every range is important, and that the combinations of any two modifiers, e.g., from about and to about, are not intended to be added together to form further ranges.

[0028] Directional terms as used herein - for example up, down, right, left, front, back, top, bottom - are made only with reference to the figures as drawn and are not intended to imply absolute orientation.

[0029] Unless specifically stated otherwise, no method steps described herein are intended to be performed in any particular order, unless otherwise explicitly stated, and nothing herein is intended to require the particular order of steps described in any claim or in the description. The various steps described herein can be performed in any order, unless otherwise specifically stated, or implied by context. This applies to any possible non-expressive bases for interpretation, including logical matters of arrangement of steps or operations; literal meaning obtained from grammatical organization or punctuation; number or type of embodiments described in the specification.

[0030] As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" includes aspects having two or more such components unless the context clearly indicates otherwise.

[0031] As used herein, the term "disposed" includes coating, depositing and / or forming a material on a surface using any known or yet to be developed method in the art. The material disposed can constitute a layer as defined herein. As used herein, the phrase "disposed on" includes embodiments where a material is formed on a surface such that the material is in direct contact with the surface, as well as embodiments where a material is formed on a surface with one or more spacer materials disposed between the material and the surface. The one or more spacer materials can constitute a layer as defined herein.

[0032] As used herein, the terms "low-RI layer" and "high-RI layer" refer to the relative values of the refractive index ("RI") of the layers of the screen protection film and / or AR coating of the electronic device according to the present disclosure (i.e., low-RI layer < high-RI layer). Thus, the refractive index value of a low-RI layer is less than the refractive index value of a high-RI layer. Further, as used herein, "low-RI layer" and "low refractive index layer" are interchangeable and have the same meaning. Likewise, "high-RI layer" and "high refractive index layer" are interchangeable and have the same meaning.

[0033] As used herein, the term "strengthened substrate" refers to a substrate that has been chemically strengthened, e.g., strengthened by ion exchange of larger ions for smaller ions in the surface of the substrate, employed in the screen protection film and / or electronic device of the present disclosure. However, other strengthening methods known in the art, such as thermal tempering, or the use of a mismatch in the coefficient of thermal expansion between portions of the substrate to create a compressive stress and central tension zone, can also be utilized to form a strengthened substrate.

[0034] As used herein, "Berkovich Indenter Hardness Test" and "Berkovich Hardness Test" are used interchangeably to mean a test that measures hardness on a surface of a material by pressing a concave surface with a diamond Berkovich indenter. The Berkovich Indenter Hardness Test includes pressing the outermost surface (e.g., exposed surface) of the screen protection film and / or AR coating of the electronic device of the present disclosure with a diamond Berkovich indenter to form an indentation having an indentation depth in a range of about 50 nm to about 1000 nm (or the entire thickness of the AR coating, whichever is less), and measuring the maximum hardness of the indentation along the entire indentation depth range or a segment of this indentation depth (e.g., in a range of about 100 nm to about 600 nm, about 100 nm to about 500 nm, to 200 nm depth, etc.), generally using the methods shown in Oliver, W. C.; Pharr, G. M., An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments. J. Mater. Res. 7, 6, 1564-1583 (1992); and Oliver, W. C.; Pharr, G. M., Measurement of Hardness and Elastic Modulus by Instrument Indentation: Advances in Understanding and Refinements to Methodology. J. Mater. Res. 19, 1, 3-20 (2004). As used herein, "hardness" and "maximum hardness" each interchangeably refer to the maximum hardness measured along the indentation depth range, rather than the average hardness.

[0035] Generally, in nanoindentation measurement methods (e.g., Berkovich indenter hardness testing) of coatings or films having a greater hardness than the underlying substrate, the measured hardness can appear to initially increase due to the development of a plastic zone at shallow indentation depths, then increase and reach a maximum or plateau level at deeper indentation depths. Thereafter, the hardness begins to decrease at even deeper indentation depths due to the influence of the underlying substrate. The same effect can be seen when utilizing a substrate having a higher hardness than the coating; however, the hardness increases at deeper indentation depths due to the influence of the underlying substrate. The indentation depth range and hardness values at certain indentation depth ranges can be selected to identify the particular hardness response of the AR coating and its individual layers described herein, without the influence of the underlying substrate.

[0036] When measuring the hardness of the AR coating of the screen protection film and / or electronic device of the present disclosure according to the Berkovich indenter hardness test, a permanent deformation zone (plastic zone) of the material is associated with the hardness of the material. During indentation formation, the elastic stress field extends well beyond this permanent deformation zone. As the indentation depth increases, the apparent hardness and modulus can be influenced by the stress field interaction with the underlying substrate. The influence of the substrate on the hardness occurs at deeper indentation depths (i.e., typically at depths greater than about 10% of the AR coating or layer thickness). Furthermore, another complication is that the hardness response requires some minimum load to produce full plasticity during indentation formation. Prior to reaching this some minimum load, the hardness generally shows an increasing trend.

[0037] At shallow indentation depths (which can also be characterized by small loads) (e.g., up to about 50 nm), the apparent hardness of the material appears to increase sharply with respect to indentation depth. This shallow indentation depth range does not represent a true hardness indicator, but rather reflects the development of the aforementioned plastic zone, which is related to the finite radius of curvature of the indenter. At intermediate indentation depths, the apparent hardness approaches a maximum level. At deeper indentation depths, the influence of the substrate becomes more apparent as the indentation depth increases. Once the indentation depth exceeds about 30% of the outer layer film of the cover article of the present disclosure (e.g., AR coating 120-120b as shown in FIG. 1B and discussed in detail below), the hardness begins to decrease sharply. Figures 1-1 C

[0038] ​As used herein, the term "transmittance" is defined as the percentage of incident light power transmitted through a material (e.g., the AR coating and substrate of a screen protection film, and the AR coating and substrate of an electronic device, or portions thereof) in a given wavelength range. Similarly, the term "reflectance" is defined as the percentage of incident light power reflected from a material (e.g., the AR coating and substrate of a screen protection film, and the AR coating and substrate of an electronic device, or portions thereof) in a given wavelength range. Transmittance and reflectance are measured using a specified line width. As used herein, "average transmittance" refers to the average amount of incident light power transmitted through a material in a defined wavelength range. As used herein, "average reflectance" refers to the average amount of incident light power reflected by a material. In addition, "average reflectance" can be determined in the visible spectrum, infrared spectrum, or other wavelength range according to measurement principles understood by one of skill in the art of the present disclosure.

[0039] As used herein, "photopic reflectance" is a simulation of the human eye's response by separately weighting reflectance or transmittance versus wavelength spectrum according to the sensitivity of the human eye. According to known conventions, such as the CIE color space convention, photopic reflectance can also be defined as the luminance or tristimulus Y value of the reflected light. As used herein, for a wavelength range of 380 nm to 720 nm, "average photopic reflectance" is defined according to the following equation as the spectral reflectance R(λ) multiplied by the illuminant spectrum I(λ) and the CIE color matching function In relation to the spectral response of the eye, as shown in equation (1):

[0040]

[0041] In addition, "average reflectance" can be determined in the visible spectrum or other wavelength range according to measurement principles understood by one of skill in the art of the present disclosure.

[0042] Unless otherwise indicated, all reflectance values reported or otherwise mentioned in the present disclosure are associated with testing performed through the AR coating of a screen protection film disposed on an electronic device having a display (e.g., itself having an AR coating) and the major surface of the substrate of the display on which the screen protection film is disposed, such as "first surface" average photopic reflectance, "first surface" average reflectance in a specified wavelength range, etc.

[0043] As used herein, the term "admittance" refers to the optical admittance of the AR coating of the present disclosure. "Admittance" as used herein has the same units as electrical admittance and is defined as the ratio of the total tangential magnetic field amplitude to the total tangential electric field amplitude at the topmost surface of the topmost layer of the AR coating (e.g., at the interface between air and the topmost layer of the screen protector film AR coating). The light field at the wavelength of interest is composed of a magnetic field and an electric field, and "total" means the sum of the incident and reflected fields. In addition, the field amplitudes are generally represented by complex numbers, and thus "admittance" is also a complex number (see Table 2 below and corresponding description).

[0044] As used herein, the term "contrast ratio" refers to the ratio of the display luminance of the brightest color to the display luminance of the darkest color of a display including the article of the present disclosure comprising a screen protector film and an electronic device. Unless otherwise indicated, the display luminance and color measurements for calculating the contrast ratio are made under ambient lighting because this lighting is most relevant to the situation that the article owner would typically experience when using the article. In addition, the contrast ratio is measured at a plurality of display luminance values (in "nits"). Furthermore, the contrast ratio can be plotted against display luminance, from which the given display luminance required to achieve a given contrast ratio can be observed. In this case, the display luminance is related to the battery consumption of the article, which is intended to describe the light produced and emitted by the display of the article. Specifically, the lower the display luminance required to achieve a given contrast ratio, the lower the battery consumption of the article. Unless otherwise indicated, all contrast ratio values and measurements in the present disclosure are obtained or otherwise calculated using a Samsung Galaxy S9 mobile phone as the electronic device, a Konica Minolta CL-70F illuminometer, a Photo Research SpectraScan PR-745 light point colorimeter, a Radiant Vision Systems I-Plus image colorimeter, and a neutral density (ND) filter on the PR-745 colorimeter lens. Those skilled in the art of the present disclosure can employ the above instruments to measure the contrast ratio of a mobile phone having a given screen protector film attached under ambient lighting, for example, by employing the PR-745 to detect and measure the display luminance of the mobile phone.

[0045] Unless otherwise indicated, as used herein, "peel strength" is measured according to ASTM standard D3330, as understood and implemented by those skilled in the art of the present disclosure, at 180° peel against a stainless steel surface, in units of "gf / 25mm". Although it should be understood that the adhesives used in screen protector films are not applied to a stainless steel surface, the use of a stainless steel surface provides a common reference point for comparing the peel strength values of the adhesives used in screen protector films to the articles of the present disclosure.

[0046] Aspects of the present disclosure are directed to screen protection films with anti-reflective (AR) coatings and, in some cases, anti-shatter (AS) films for electronic device displays that already have AR coatings, and to articles comprising AR display devices and such AR screen protection films. These screen protection films employ AR coatings disposed on a substrate (e.g., a glass substrate, Gorilla products, etc.), and an adhesive-bonded interlayer disposed on the substrate for releasably adhering to an optical coating (e.g., an AR coating) disposed on a glass-containing display of an electronic device. The interlayer can have one or more refractive indices, each in the range of about 1.2 to about 1.6. Additionally, the interlayer comprises an adhesive, and in some embodiments, the interlayer includes an optically clear adhesive (OCA) layer, a polymer-containing layer, and a releasable adhesive layer, each having a uniform or graded refractive index in the range of 1.2 to about 1.6. Further, some aspects of the screen protection film are also configured with an AS film (e.g., a polymer-containing layer and an OCA layer) disposed between the interlayer and the screen protection film.

[0047] The AR screen protection films of the present disclosure are tailored for electronic device displays with AR coatings to ensure that the average photopic reflectance of the combined article (electronic device display + screen protection film) is minimal, or does not decrease, due to the presence of the screen protection film. More specifically, the interlayer and AS film (if present) of the screen protection film are tailored according to their refractive indices to achieve such optical benefits, e.g., such that each element of the interlayer and AS film (if present) has a refractive index in the range of about 1.2 to about 1.6. Preferably, the polymer-containing layer of the interlayer and AS film (if present) has a refractive index between 1.45 and 1.55. For example, when the screen protection film is releasably adhered to the display, the average photopic reflectance of the screen protection film can be less than 2%, 1.5%, or even 1.2% for all angles of incidence from 0° to 30°. As another example, the screen protection film can exhibit a contrast ratio (CR) of at least 5 when the display brightness is 200 nits, and a CR of at least 10 when the display brightness is 400 nits. Thus, a user can employ the AR screen protection films of the present disclosure to obtain their intended benefits in terms of mechanical properties (e.g., scratch resistance and / or drop resistance) without compromising the optical properties (e.g., average photopic reflectance, contrast ratio, etc.) of the electronic display device.

[0048] Reference will now be made in detail to various embodiments of screen protection films, electronic devices, and articles containing the same, examples of which are illustrated in the accompanying drawings. Reference will be made to Figures 1-1 CAccording to one or more embodiments, articles 200-200c are depicted that include electronic devices 100-100b and screen protection films 100'-100c'. Electronic devices 100-100b can be any display device (e.g., mobile phone, tablet, etc.) having a glass-containing display 110 and an anti-reflective (AR) coating 120-120b disposed on the display. Screen protection films 100'-100c' include a glass-containing substrate 110' and an AR coating 120'-120b' disposed on the glass-containing substrate. Displays 110 and substrates 110' can each include opposing major surfaces 112, 112', 114, and 114', respectively, as shown in Figures 1-1 C

[0049] Screen protection films 100' (and 100a', 100b', 100c') also include an interlayer 160 disposed on the interior major surface 114' of the substrate 110'. The interlayer 160 includes an adhesive and can have a physical thickness of about 10 μιη to 400 μιη or about 100 μιη to 500 μιη. In some embodiments, the thickness of the interlayer 160 ranges from about 10 μιη to 550 μιη, 10 μιη to 500 μιη, 10 μιη to 450 μιη, 10 μιη to 300 μιη, 20 μιη to 350 μιη, 30 μιη to 300 μιη, and all thicknesses and thickness sub-ranges therebetween. For example, the thickness of the interlayer 160 can be 10 μιη, 15 μιη, 20 μιη, 25 μιη, 30 μιη, 40 μιη, 50 μιη, 75 μιη, 100 μιη, 150 μιη, 200 μιη, 250 μιη, 300 μιη, 350 μιη, 400 μιη, 450 μιη, 500 μιη, and all thickness values therebetween.

[0050] Additionally, as Figures 1-1 C ​As depicted in the middle, the middle layer 160 of the screen protection film 100' (and 100a', 100b', and 100c') is configured to be peelably attached to the AR coating 120 disposed on the glass-containing display 110 of the electronic device 100. That is, the middle layer 160 can facilitate the peelable attachment of the screen protection film 100' to the electronic device 100. Additionally, the middle layer 160 has one or more refractive indices, and each refractive index of the middle layer 160 is about 1.2 to about 1.6, about 1.2 to about 1.5, or about 1.2 to about 1.4. For example, these refractive index values can be about 1.2, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, and all refractive index values between these amounts. In some embodiments, the middle layer 160 has one or more refractive indices, and each refractive index of the middle layer 160 is within 30%, 20%, or even 10% of the refractive index of the glass-containing substrate 110' of the screen protection film 100'-100c' and / or the AR coating 120-120b of the electronic device 100-100b.

[0051] In Figures 1-1 C In some embodiments depicted in the middle (e.g., articles 200-200c), the middle layer 160 of the screen protection film 100' (and 100a', 100b', and 100c') can include an optically clear adhesive (OCA) layer 160a disposed on the interior major surface 114' of the glass-containing substrate 110', a polymer-containing layer 160b disposed on the OCA layer 160a, and a peelable adhesive layer 160c disposed on the polymer-containing layer 160b. Additionally, the OCA layer 160a, the polymer-containing layer 160b, and the peelable adhesive layer 160c can each have a refractive index of about 1.2 to about 1.6, about 1.2 to about 1.5, or about 1.2 to about 1.4. For example, these refractive index values can be about 1.2, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, and all refractive index values between these amounts. In a preferred embodiment, the refractive index value of the polymer-containing layer 160b can be about 1.4 to about 1.6 or about 1.45 to about 1.55, for example, 1.4, 1.425, 1.45, 1.475, 1.50, 1.525, 1.5, 1.575, 1.6, and all refractive index values between these levels.

[0052] Additionally, for the middle layer 160, one of its functions is to allow the peelable attachment of the screen protection film 100'-100c' to the electronic device 100-100b (see Figures 1-1 C). Therefore, for this purpose, the intermediate layer 160 includes an adhesive. Recognizing that the screen protectors 100'-100c' include a glass-containing substrate 110' and the electronic devices 100-100b also include a glass-containing display 110, the intermediate layer 160 can have an adhesive system that allows for both releasable attachment of these elements and is suitable for bonding to these glass-containing elements, thereby promoting proper functioning of the installed screen protector. In one embodiment, the intermediate layer 160 includes an adhesive having a peel strength of 1 to 25 gf / 25 mm or 3 to 5 gf / 25 mm. Another approach is for the intermediate layer 160 to have an adhesive system that includes an OCA layer 160a, a polymer-containing layer 160b, and a releasable adhesive layer 160c, such as Figures 1-1 C . In this configuration, the OCA layer 160a should have an adhesive suitable for bonding the glass-containing substrate 110′ and the polymer-containing layer 160b with high peel strength. The polymer-containing layer 160b should be a suitable material with a certain thickness to serve as an appropriate substrate for the OCA layer 160a. Additionally, the peelable adhesive layer 160c should be able to firmly bond to the polymer-containing layer 160b while having a relatively low peel strength when bonding to the AR coating 120-120b of the electronic device 100-100b.

[0053] According to some embodiments of the intermediate layer 160, the physical thickness of the OCA layer 160a can be 1 pm to 450 pm, 1 pm to 400 pm, 1 pm to 350 pm, 1 pm to 300 pm, 1 pm to 250 pm, 1 pm to 200 pm, 1 pm to 150 pm, 1 pm to 125 pm, 1 pm to 100 pm, or 300 pm to 400 pm. For example, the thickness of the OCA layer 160a can be 1 pm, 5 pm, 10 pm, 20 pm, 25 pm, 50 pm, 75 pm, 100 pm, 110 pm, 120 pm, 125 pm, 130 pm, 140 pm, 150 pm, 200 pm, 250 pm, 300 pm, 350 pm, 360 pm, 375 pm, 390 pm, 400 pm, 450 pm, or any thickness value between the foregoing thicknesses. Suitable materials for the OCA layer 160a include any of various adhesive compositions used in the art of the present disclosure having a refractive index of about 1.2 to about 1.6, including fluorine-substituted monoacrylate adhesives, low refractive index ultraviolet (UV) curable hydrogels, nanoporous block copolymers, and nanoporous poly(allylamine hydrochloride) / poly(acrylic acid) (PAH / PAA) polymers. Additionally, according to some embodiments, the OCA layer 160a exhibits a peel strength greater than 250 gf / 25 mm, 500 gf / 25 mm, 750 gf / 25 mm, 1000 gf / 25 mm, 1250 gf / 25 mm, or even 1500 gf / 25 mm. For example, the OCA layer 160a can exhibit a peel strength of 250, 300, 400, 500, 600, 700, 750, 800, 900, 1000, 1050, 1100, 1150, 1200, 1250, 1300, 1400, 1500, 1750, 2000 gf / 25 mm, and all peel strength values above the foregoing levels.

[0054] According to some embodiments of the intermediate layer 160, the polymeric- containing layer 160b can have a physical thickness of 5 pm to 200 pm, 8 pm to 200 pm, 10 pm to 200 pm, 25 pm to 100 pm, or 25 pm to 75 pm. For example, the polymeric-containing layer 160b can have a thickness of 5 pm, 10 pm, 20 pm, 25 pm, 30 pm, 40 pm, 50 pm, 60 pm, 70 pm, 75 pm, 80 pm, 90 pm, 100 pm, 110 pm, 120 pm, 125 pm, 130 pm, 140 pm, 150 pm, 160 pm, 170 pm, 180 pm, 190 pm, 200 pm, or any thickness value between the foregoing thicknesses. Suitable materials for the polymeric-containing layer 160b include polyethylene terephthalate (PET), polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), ethylene tetrafluoroethylene (ETFE), perfluoroalkoxy alkane (PFA), fluorinated ethylene propylene (FEP), amorphous fluoropolymers, cyclic olefin polymers (COP) (e.g., Zeonor Film from Zeon Corporation), cellulose triacetate, polyurethane, and polymethyl methacrylate (PMMA). As mentioned previously, the polymeric-containing layer 160b can have a refractive index of about 1.2 to about 1.6. In some embodiments, the polymeric-containing layer 160b can have a refractive index of about 1.4 to about 1.6, or preferably about 1.45 to 1.55, and can include, for example, cyclic olefin polymers (COP), cellulose triacetate, or polyurethane. TM

[0055] ​According to some embodiments of the intermediate layer 160, the physical thickness of the releasable adhesive layer 160c can be 1 pm to 150 pm, 1 pm to 125 pm, 1 pm to 100 pm, or 25 pm to 100 pm. For example, the releasable adhesive layer 160c can have a thickness of 1 pm, 5 pm, 10 pm, 20 pm, 25 pm, 30 pm, 40 pm, 50 pm, 60 pm, 70 pm, 75 pm, 80 pm, 90 pm, 100 pm, 110 pm, 120 pm, 125 pm, 130 pm, 140 pm, 150 pm, or any thickness value between the foregoing thicknesses. Suitable materials for the releasable adhesive layer 160c include any of various adhesive compositions having a refractive index of about 1.2 to about 1.6 used in the art of the present disclosure, including silicone, fluorosubstituted monoacrylate adhesives, and low refractive index ultraviolet (UV) curable hydrogels, nanoporous block copolymers, and nanoporous poly(allylamine hydrochloride) / poly(acrylic acid) (PAH / PAA) polymers. Additionally, according to some embodiments, the releasable adhesive layer 160c exhibits a peel strength of 1 to 25 gf / 25 mm, 1 to 15 gf / 25 mm, 1 to 10 gf / 25 mm, 2 to 6 gf / 25 mm, or 3 to 5 gf / 25 mm. For example, the releasable adhesive layer 160c can exhibit a peel strength of 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, or 25 gf / 25 mm, and all peel strength values between the foregoing levels.

[0056] The AR coatings 120'-120b' and the AR coatings 120-120b are shown in Figures 1-1 C as being disposed on the outer major surfaces 112', 112 of the glass-containing substrates 110' and the glass-containing displays 110, respectively; however, the AR coatings 120-120b can be disposed on the inner major surfaces 114 of the displays 110 in addition to or as an alternative to being disposed on the outer major surfaces 112. The AR coatings 120'(120a'-120b'), 120(120a-120b) form outermost surfaces 122', 122, respectively. Additionally, the AR coatings 120a-120b can each include a scratch-resistant layer 150 (as shown in Figure 1 A and 1B ). In some embodiments, the outermost surfaces 122', 122 of the AR coatings 120', 120 form an air interface, and generally define the edges of the AR coatings 120', 120 and the screen protection films 100'-100b' or electronic devices 100-100b (e.g. Figure 1). In other embodiments, additional coatings may be provided on the outermost surfaces 122', 122 of the AR coatings 120'-120b' and 120-120b. According to some embodiments, the substrate 110' and / or the glass-containing display 110 may be substantially transparent, as described herein.

[0057] The AR coating 120'-120b', 120-120b includes at least one layer containing at least one material. The term "layer" may include a single layer, or may include one or more sub-layers. These sub-layers may be in direct contact with each other. The sub-layers may be formed of the same material or two or more different materials. In one or more alternative embodiments, these sub-layers may be provided with spacer layers of different materials therebetween. In one or more embodiments, the layer may include one or more continuous and uninterrupted layers and / or one or more discontinuous and discontinuous layers (i.e., layers of different materials formed adjacent to each other). The layer or sub-layer may be formed by any known method in the art, including discrete deposition methods or continuous deposition methods. In one or more embodiments, the layer may be formed using only a continuous deposition method, or alternatively, may be formed using only a discrete deposition method.

[0058] Figures 1-1 CThe physical thickness of the AR coating 120 ′-120 b ′, 120 - 120 b depicted in FIG can be about 0.25 μm (250 nm) or greater. In some examples, the physical thickness of the AR coating 120 ′, 120 can be in the following ranges: about 0.25 μm to about 10 μm, about 0.25 μm to about 7.5 μm, about 0.25 μm to about 5 μm, about 0.5 μm to about 5 μm, about 0.5 μm to about 4 μm, and all thickness values ​​of the AR coating 120 ′-120 b ′, 120 - 120 b between these thickness values. In some embodiments, the physical thickness of the AR coating 120 ′-120 b ′, 120 - 120 b can be 250 nm to 1000 nm, 300 nm to 900 nm, 400 nm to 700 nm, and all thickness values ​​and thickness value ranges therebetween. In other embodiments, the physical thickness of the AR coating 120 ′- 120 b ′, 120 - 120 b can be 250 nm to 450 nm, 750 nm to 3500 nm, 1000 nm to 5000 nm, 1000 nm to 4000 nm, 1500 nm to 3500 nm, 2000 nm to 4000 nm, 2500 nm to 4000 nm, and all thickness values ​​and thickness value ranges therebetween, and in between. For example, the physical thickness of the AR coating 120 ′- 120 b ′, 120 - 120 b may be approximately 0.25 μm, 0.3 μm, 0.4 μm, 0.5 μm, 0.6 μm, 0.7 μm, 0.8 μm, 0.9 μm, 1 μm, 1.25 μm, 1.5 μm, 1.75 μm, 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, and all thickness values ​​therebetween.

[0059] In addition, if Figure 1 A and 1B As shown in FIG, the AR coating 120a'-b', 120a-b includes a plurality of alternating layers (130A, 130B). In one or more embodiments, the AR coating 120a'-b', 120a-b may include a periodic structure comprising two or more layers. In one or more embodiments, the two or more layers may be characterized by having different refractive indices from one another. In one embodiment, the periodic structure includes a first low RI layer 130A and a second high RI layer 130B. The difference in refractive index between the first low RI layer 130A and the second high RI layer 130B may be about 0.01 or greater, about 0.05 or greater, about 0.1 or greater, or even about 0.2 or greater.

[0060] like Figure 1 A and 1BAs shown in the middle, AR coatings 120a'-b', 120a-b can include alternating low- and high- refractive index layers 130A, 130B, constituting a plurality of periodic structures. A single periodic structure can include a low-RI layer 130A and a high-RI layer 130B, such that when a plurality of periodic structures are provided, a first low-RI layer 130A (designated "L" for illustration purposes) and a second high-RI layer 130B (designated "H" for illustration purposes) alternate in the following layer order: L / H / L / H or H / L / H / L, thereby causing the low-RI layers 130A and the high-RI layers 130B to appear to alternate along the physical thickness of the AR coating 120a'-b', 120a-b. In Figure 1 A In the example depicted in the middle, AR coatings 120a, 120a' each include two (2) periodic structures, each including a low-RI layer 130A and a high-RI layer 130B (or scratch-resistant layer 150), and an additional low-RI layer 130A (i.e., the outermost low-RI layer 130A). In Figure 1 B In the example depicted in the middle, AR coatings 120a, 120a' each include two (2) periodic structures, each including a low-RI layer 130A and a high-RI layer 130B (or scratch-resistant layer 150), and an additional low-RI layer 130A (i.e., the outermost low-RI layer 130A). In

[0061] In some embodiments, AR coatings 120'-120b', 120-120b can include up to twenty-five (25) periodic structures. For example, as Figures 1-1 B As depicted in the middle, AR coatings 120'-120b', 120-120b can include about 2 to about 25 periodic structures, about 2 to about 20 periodic structures, about 2 to about 15 periodic structures, about 2 to about 10 periodic structures, or any other number of periodic structures within these ranges. For example, AR coatings 120'-120b', 120-120b can include 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, or 25 periodic structures consisting of alternating low-RI layers 130A and high-RI layers 130B.

[0062] As used herein, the terms "low-RI" and "high-RI" refer to the relative values of the refractive indices of layers 130A and 130B with respect to each other (e.g., low-RI < high-RI). In one or more embodiments, the term "low-RI" when used in reference to low-RI layers 130A includes a range of about 1.3 to about 1.7 or 1.75. In one or more embodiments, the term "high-RI" when used in reference to high-RI layers 130B includes a range of about 1.7 to about 2.6 (e.g., about 1.85 or greater).

[0063] Suitable materials for AR coatings 120'-120b', 120-120b include: SiO2, Al2O3, GeO2, SiO, AlO x N y , AlN, SiN x , SiO x N y , Si u Al v O x N y , Ta2O5, Nb2O5, TiO2, ZrO2, TiN, MgO, MgF2, BaF2, CaF2, SnO2, HfO2, Y2O3, MoO3, DyF3, YbF3, YF3, CeF3, silicon-containing oxides, silicon-containing nitrides, silicon-containing oxynitrides, polymers, fluorine-containing polymers, plasma-polymerized polymers, siloxane polymers, silsesquioxanes, polyimides, fluorinated polyimides, polyetherimides, polyether sulfones, polyphenyl sulfones, polycarbonates, polyethylene terephthalate, polyethylene naphthalate, acrylic polymers, urethane polymers, polymethyl methacrylate, the following listed as other materials suitable for scratch-resistant layers, and other materials known in the art. Some examples of suitable materials for low-RI layer 130A include SiO2, Al2O3, GeO2, SiO, AlO x N y , SiO x N y , Si u Al v O x N y , MgO, MgAl2O4, MgF2, BaF2, CaF2, DyF3, YbF3, YF3, and CeF3. Some embodiments of low-RI layer 130A employ silicon-containing oxides (e.g., SiO, SiO2, etc.). The nitrogen content of the materials used for the first low-RI layer 130A can be minimized (e.g., in materials such as Al2O3 and MgAl2O4). Some examples of suitable materials for high-RI layer 130B include Si u Al v O x N y , Ta2O5, Nb2O5, AlN, Si3N4, AlO x N y , SiO x N y , SiN x , SiN x :H y, HfO2, TiO2, ZrO2, Y2O3, Al2O3, MoO3 and diamond-like carbon. Some embodiments of the high RI layer 130B use silicon-containing oxynitride (e.g., SiO x N y 、Si u Al v O x N y etc.) and / or silicon nitrides (e.g. Si3N4, SiN x wait).

[0064] In an example, the high RI layer 130B may also be a high hardness layer or a scratch resistant layer (e.g. Figure 1 A and 1B In some embodiments, the oxygen content of the materials of the high RI layer 130B and / or the scratch resistant layer 150 can be minimized, especially SiN x or AlN x In other embodiments, the high RI layer 130B and / or the scratch resistant layer 150 each comprise SiN x or SiO x N y In some embodiments, AlO x N y The material can be considered as oxygen-doped AlN x That is, these oxygen-doped AlN x The material may have AlN x crystal structure (eg, wurtzite), but not necessarily the AlON crystal structure.

[0065] The hardness of the high RI layer 130B and / or the scratch-resistant layer 150 can be specifically characterized. In some embodiments, the maximum hardness of the high RI layer 130B and / or the scratch-resistant layer 150 can be about 8 GPa or greater, about 10 GPa or greater, about 12 GPa or greater, about 15 GPa or greater, about 18 GPa or greater, or about 20 GPa or greater when measured by a Bosch indenter hardness test at an indentation depth of about 100 nm or greater. In some cases, the high RI layer 130B material can be deposited as a single layer and can be characterized as a scratch-resistant layer (e.g., scratch-resistant layer 150), and the thickness of this single layer can be between about 200 nm and 10,000 nm for repeatable hardness measurements. When the high RI layer 130B is deposited as a single layer (e.g., as the scratch-resistant layer 150, e.g., Figure 1 A and 1BIn other embodiments (not depicted in FIG. 1), the physical thickness of this layer can be from about 75 nm to about 175 nm, from about 200 nm to about 10,000 nm, from about 200 nm to about 5,000 nm, from about 300 nm to about 3,000 nm, from about 500 nm to about 5,000 nm, from about 1,000 nm to about 4,000 nm, from about 1,500 nm to about 4,000 nm, from about 1,500 nm to about 3,000 nm, and all thickness values between these thicknesses.

[0066] In one or more embodiments, one or more of the low-RI layers 130A and high-RI layers 130B of the AR coatings 120a'-b', 120a-b can include a particular physical thickness range. These layers 130A and / or 130B of the AR coatings 120a'-b', 120a-b can include a physical thickness in a range from about 1 nm to about 400 nm, from about 5 nm to about 300 nm, from about 5 nm to about 200 nm, from about 10 nm to about 200 nm, or from about 10 nm to about 250 nm. In some embodiments, all or most of the layers of the AR coatings 120a'-b', 120a-b can each have a physical thickness in a range from about 1 nm to about 400 nm, from about 5 nm to about 300 nm, from about 5 nm to about 200 nm, from about 10 nm to about 200 nm, or from about 10 nm to about 250 nm. In some embodiments of the articles 200, the physical thickness of the outermost high-RI layer 130B of the screen protection films 100a', b' and / or electronic devices 100a, 100b is greater than 150 nm, greater than 200 nm, or even greater than 225 nm. In other embodiments of the articles 200, greater than 50%, greater than 55%, or even greater than 60% of the outermost physical thickness of the AR coatings 120'-120b', 120-120b comprises a high-RI material, i.e., the material of the high-RI layers 130B. In other embodiments, the physical thickness of the outermost high-RI layer 130B exceeds the physical thickness of the outermost low-RI layer 130A, whereby the hardness value of the AR coatings 120'-120b', 120-120b, and their screen protection films 100'-100b' and electronic devices 100-100b can be increased.

[0067] In one or more embodiments, one or more layers of the AR coating 120 '-120b ', 120-120b may include a specific optical thickness range. As used herein, the term "optical thickness" is determined by multiplying the physical thickness (d) of the layer by the refractive index (n). In one or more embodiments, at least one layer of the AR coating 120 '-120b ', 120-120b (e.g., one or more of the low RI layer 130A and the high RI layer 130B) may include an optical thickness in the following ranges: about 2 nm to about 200 nm, about 10 nm to about 100 nm, about 15 nm to about 100 nm, about 15 nm to about 500 nm, or about 15 nm to about 5000 nm. In some embodiments, all layers in the AR coatings 120'-120b', 120-120b can each have an optical thickness in the range of about 2 nm to about 200 nm, about 10 nm to about 100 nm, about 15 nm to about 100 nm, about 15 nm to about 500 nm, or about 15 nm to about 5000 nm. In some cases, at least one layer in the AR coatings 120'-120b', 120-120b has an optical thickness of about 50 nm or greater. In some cases, each low RI layer 130A has an optical thickness in the range of about 2 nm to about 200 nm, about 10 nm to about 100 nm, about 15 nm to about 100 nm, about 15 nm to about 500 nm, or about 15 nm to about 5000 nm. In other cases, the high RI layers 130B each have an optical thickness in the range of about 2 nm to about 200 nm, about 10 nm to about 100 nm, about 15 nm to about 100 nm, about 15 nm to about 500 nm, or about 15 nm to about 5000 nm.

[0068] exist Figures 1-1 C In some embodiments of the articles 200, 200a, 200b, 200c shown in exemplary form in FIG, an additional coating (not shown) may be provided on top of the outermost low RI layer 130A. This additional coating may include a low friction coating, an oleophobic coating, or an easy to clean (ETC) coating. In some embodiments, the outermost low RI layer 130A exhibits a very low thickness (e.g., about 10 nm or less, about 5 nm or less, or about 2 nm or less) that is added to a substantially thicker outermost high RI layer 130B or scratch resistant layer 150 (e.g., as Figure 1 A and 1BLow-RI layers 130A having very low thicknesses have minimal impact on optical performance when present (as shown in illustrative form). Low-RI layers 130A having very low thicknesses can include Si02, oleophobic or low-friction layers, or a combination of Si02and an oleophobic material. Illustrative low-friction layers can include diamond-like carbon. Such materials (or one or more layers of AR coatings 120', 120) can exhibit a coefficient of friction of less than 0.4, less than 0.3, less than 0.2, or even less than 0.1.

[0069] In one or more embodiments, the combined physical thickness of one or more high-RI layers 130B can be characterized. The combined thickness is the calculated combination of each high-RI layer 130B in AR coatings 120'-120b', 120-120b, even when one or more intervening low-RI layers 130A or one or more other layers are present. In some embodiments, the combined physical thickness of one or more high-RI layers 130B can be greater than 30% of the total physical thickness of AR coatings 120'-120b', 120-120b, and the high-RI layers can also include high-hardness materials (such as nitride or oxynitride materials). For example, the combined physical thickness of one or more high-RI layers 130B can be about 25% or greater, 30% or greater, 35% or greater, 40% or greater, about 50% or greater, or even about 60% or greater of the total physical thickness of AR coatings 120'-120b', 120-120b.

[0070] As previously noted, articles 200-200c can include one or more additional coatings disposed on AR coatings 120'-120b', 120-120b, such as Figures 1-1 CThe additional coating can include an easy-to-clean (ETC) coating. Examples of suitable ETC coatings are described in U.S. Patent Application No. 13 / 690,904, filed November 30, 2012, entitled "Process for Making of Glass Articles with Optical and Easy-to-Clean Coatings," published as U.S. Patent Application Publication No. 2014 / 0113083 on April 24, 2014, and important portions of which are incorporated herein by reference in their entirety. The easy-to-clean coating can have a thickness in a range from about 5 nm to about 50 nm and can include known materials, such as fluorinated silanes. The easy-to-clean coating can alternatively or additionally comprise a low-friction coating or surface treatment. Exemplary low-friction coating materials can include diamond-like carbon, silanes (e.g., fluorosilanes), phosphonates, olefins, and alkynes. In some embodiments, the easy-to-clean coating can have a thickness in a range from about 1 nm to about 40 nm, from about 1 nm to about 30 nm, from about 1 nm to about 25 nm, from about 1 nm to about 20 nm, from about 1 nm to about 15 nm, from about 1 nm to about 10 nm, from about 5 nm to about 50 nm, from about 10 nm to about 50 nm, from about 15 nm to about 50 nm, from about 7 nm to about 20 nm, from about 7 nm to about 15 nm, from about 7 nm to about 12 nm, or from about 7 nm to about 10 nm, and all ranges and sub-ranges therebetween.

[0071] In other embodiments, the additional coating can include one or more scratch-resistant layers (e.g., similar in composition to the scratch-resistant layer 150). In some embodiments, the additional coating includes a combination of an easy-to-clean material and a scratch-resistant material. In one example, the combination includes an easy-to-clean material and diamond-like carbon. The thickness of these additional coatings can be in a range from about 5 nm to about 20 nm. The components of the additional coating can be provided in separate layers. For example, the diamond-like carbon can be provided as a first layer, and the easy-to-clean material can be provided as a second layer on the first layer of diamond-like carbon. The thickness of the first and second layers can be in the ranges provided above for the additional coating. For example, the thickness of the first layer of diamond-like carbon can be from about 1 nm to about 20 nm or from about 4 nm to about 15 nm (or more particularly, about 10 nm), and the thickness of the second layer of easy-to-clean material can be from about 1 nm to about 10 nm (or more particularly, about 6 nm). The diamond-like coating can include tetrahedral amorphous carbon (Ta-C), Ta-C:H, and / or a-C-H.

[0072] As referred to herein, Figures 1-1 CThe AR coatings 120'-120b', 120-120b depicted in FIG include a scratch-resistant layer 150 that can be disposed within the AR coatings 120'-120b', 120-120b, directly on the glass-containing substrate 110' or the glass-containing display 110 (not shown), or at the outermost surface 122, 122' of the AR coatings 120-120b', 120-120b (not shown). In some embodiments, the scratch-resistant layer 150 can be disposed between layers of the AR coating such that a portion of the AR coating is above the scratch-resistant layer 150 (e.g., the anti-reflective region) and another portion of the AR coating is below the layer 150 and above the substrate 110' and / or the display 110. In other embodiments (e.g., as Figures 1 A-1 B In the embodiment shown in FIG. 1 , a portion of the multiple low RI layers 130A and high RI layers 130B of the AR coating 120a′-b′, 120a-b is positioned between the scratch-resistant layer 150 and the substrate 110, while the remaining portion of the AR coating is positioned above the scratch-resistant layer 150. In some embodiments, the portion of the AR coating below layer 150 serves as an optical interference layer or region, which can bridge the refractive index difference between the substrate 110′ and / or display 110 and the scratch-resistant layer 150, and comprises alternating high refractive index layers 130B and low refractive index layers 130A. The two sections of the AR coating (i.e., the optical interference region positioned between the scratch-resistant layer 150 and the substrate 110 and the anti-reflection region positioned on the scratch-resistant layer 150) may have different thicknesses or may have substantially the same thickness. The layers of the two sections of the AR coating may be the same or different in composition, order, thickness, and / or configuration. Furthermore, the layers of the two sections of the AR coating may contain the same number of periodic structures, or the number of periodic structures in each of these sections may differ from each other.

[0073] Exemplary materials used in the scratch resistant layer 150 (or a scratch resistant layer used as an additional coating, as previously mentioned) may include inorganic carbides, nitrides, oxides, diamond-like materials, or combinations thereof. Examples of materials suitable for the scratch resistant layer 150 include metal oxides (e.g., silicon-containing oxides), metal nitrides (e.g., silicon-containing nitrides), metal oxynitrides (e.g., silicon-containing oxynitrides), metal carbides, metal oxycarbides, and / or combinations thereof. Exemplary metals include B, Al, Si, Ti, V, Cr, Y, Zr, Nb, Mo, Sn, Hf, Ta, and W. Specific examples of materials that can be used for the scratch resistant layer 150 or coating may include Al2O3, AlN, AlO x N y 、Si3N4、SiN x 、SiO x N y 、Si u Al v O xN y , diamond, diamond-like carbon, Si x C y 、Si x O y C z 、ZrO2、TiO x N y and combinations thereof. The scratch-resistant layer 150 may also comprise a nanocomposite material, or a material with a controlled microstructure, to improve hardness, toughness, or abrasion / wear resistance. For example, the scratch-resistant layer 150 may comprise nanocrystallites having a size ranging from about 5 nm to about 30 nm. In embodiments, the scratch-resistant layer 150 may comprise transformation-toughened zirconia, partially stabilized zirconia, or zirconia-toughened alumina. In embodiments, the scratch-resistant layer 150 exhibits a fracture toughness value greater than about 1 MPa√m and simultaneously exhibits a hardness value greater than about 8 GPa.

[0074] The scratch resistant layer 150 may include a single layer (e.g. Figures 1 A-1 B ), or multiple sub-layers or a single layer exhibiting a refractive index gradient. When multiple layers are used, these layers form a scratch-resistant coating. For example, the scratch-resistant layer 150 may include SiO x N y or Si u Al v O x N y A composition gradient is formed in which the concentration of any one or more of Si, Al, O, and N is varied to increase or decrease the refractive index. A refractive index gradient can also be formed using porosity. Such a gradient is more fully described in U.S. Patent Application No. 14 / 262,224, filed April 25, 2014, entitled “Scratch-Resistant Articles with a Gradient Layer,” which issued on July 11, 2017 as U.S. Patent No. 9,703,011, a significant portion of which is hereby incorporated by reference in its entirety.

[0075] According to some embodiments, the scratch resistant layer 150 (e.g., Figures 1 A-1 BThe scratch resistant layer 150 can have a physical thickness of about 200 nm to about 5000 nm. In some embodiments, the physical thickness of the scratch resistant layer 150 is about 100 nm to about 10000 nm, about 200 nm to about 7500 nm, about 200 nm to about 5000 nm, about 200 nm to about 3000 nm, about 500 nm to about 5000 nm, about 500 nm to about 3000 nm, about 500 nm to about 2500 nm, about 1000 nm to about 4000 nm, about 1500 nm to about 4000 nm, about 1500 nm to about 3000 nm, about 1750 nm to about 2250 nm, and all thickness values between these thicknesses. For example, the physical thickness of the scratch resistant layer 150 can be 100 nm, 150 nm, 200 nm, 300 nm, 400 nm, 500 nm, 600 nm, 700 nm, 800 nm, 900 nm, 1000 nm, 1100 nm, 1200 nm, 1300 nm, 1400 nm, 1500 nm, 1600 nm, 1700 nm, 1800 nm, 1900 nm, 2000 nm, 2100 nm, 2200 nm, 2300 nm, 2400 nm, 2500 nm, 2600 nm, 2700 nm, 2800 nm, 2900 nm, 3000 nm, 3500 nm, 4000 nm, 4500 nm, 5000 nm, 7500 nm, 10000 nm, and all thickness sub-ranges and thickness values between the foregoing thicknesses.

[0076] Various exemplary designs of AR coatings 120'-120b', 120-120b are described in detail in Tables 1A-1E below for specified Examples 1A-1E. In some embodiments of the article 200-200c (see Figures 1-1 C ) and / or the screen protection film 100', an AR coating 120a' (13 layers) as in Example 1A, or an AR coating 120b' (5 layers) as in Example 1B can be used. In some embodiments of the article 200-200c (see Figures 1-1 C ) and / or the electronic device 100, an AR coating 120-120b as in Examples 1A, 1B, or 1C-1E (19 to 23 layer configurations) can be employed.

[0077] Table 1A - Example 1A, 13 layer AR coating

[0078] Layer Material Refractive index at 550 nm Thickness (nm) 1 SiO2 1.46-1.48 90.5 2 SiO x N y ]]> 1.94-2.05 150.2 3 SiO2 1.46-1.48 16.6 4 SiO x N y ]]> 1.94-2.05 46.3 5 SiO2 1.46-1.48 9 6 SiO x N y ]]> 1.94-2.05 500-2000 7 SiO2 1.46-1.48 8.71 8 SiO x N y ]]> 1.94-2.05 44.88 9 SiO2 1.46-1.48 30.12 10 SiO x N y ]]> 1.94-2.05 26.14 11 SiO2 1.46-1.48 53.7 12 SiO x N y ]]> 1.94-2.05 9.62 13* SiO2 1.46-1.48 25

[0079] * 13th layer is the innermost layer of this AR coating, disposed above the substrate / display

[0080] Table 1B - Example 1B, 5 layer AR coating

[0081] Layer Material Refractive index at 550 nm Thickness range (nm) 1 SiO2 1.46-1.48 81.7-94.6 2 SiN y ]]> 2.00-2.06 105-158.5 3 SiO2 1.46-1.48 23.9-37.2 4 SiN y ]]> 2.00-2.06 21.6-23.1 5* SiO2 1.46-1.48 24.8-25.0

[0082] * Layer 5 is the innermost layer of this AR coating, disposed above the substrate / display

[0083] Table 1C - Example 1C, 19-layer AR coating

[0084] Layer Material Refractive index at 550 nm Thickness (nm) 1 SiO2 1.472 102.3 2 Si3N4 2.029 152.6 3 SiO2 1.472 44.65 4 Si3N4 2.029 24.9 5 SiO2 1.472 81.1 6 Si3N4 2.029 25.2 7 SiO2 1.472 46.3 8 Si3N4 2.029 38.4 9 SiO2 1.472 14.6 10 SiON 1.991 2100 11 SiO2 1.474 8 12 SiON 2.003 56.1 13 SiO2 1.474 26.7 14 SiON 2.003 39.3 15 SiO2 1.474 50.8 16 SiON 2.003 21.6 17 SiO2 1.474 67.1 18 SiON 2.003 8.1 19* SiO2 1.474 20

[0085] * Layer 19 is the innermost layer of this AR coating, disposed above the substrate / display

[0086] Table 1D - Example 1D, 19-layer AR coating

[0087] Layer Material Refractive index at 550 nm Thickness (nm) 1 SiO2 1.465 133 2 SiN X ]]> 2.043 22.1 3 SiO2 1.465 47.2 4 SiN X ]]> 2.043 40.5 5 SiO2 1.465 25.75 6 SiN X ]]> 2.043 42.5 7 SiO2 1.465 8 8 SiON 1.943 2050 9 SiO2 1.465 6.4 10 SiON 1.943 62.6 11 SiO2 1.465 19.6 12 SiON 1.943 50.5 13 SiO2 1.465 38.3 14 SiON 1.943 35.5 15 SiO2 1.465 57.9 16 SiON 1.943 21.4 17 SiO2 1.465 69.2 18 SiON 1.943 10 19* SiO2 1.465 25

[0088] * Layer 19 is the innermost layer of this AR coating, disposed above the substrate / display

[0089] Table 1E - Example 1E, 23-layer AR coating

[0090] Layer Material Refractive index at 550 nm Thickness (nm) 1 SiO2 1.476 14 2 SiON 1.744 76.17 3 Si3N4 2.058 66.17 4 SiON 1.744 8 5 Si3N4 2.058 57.32 6 SiON 1.744 37.67 7 Si3N4 2.058 15.26 8 SiON 1.744 2000 9 SiO2 1.476 8 10 SiON 1.744 76.55 11 SiO2 1.476 18.28 12 SiON 1.744 68.94 13 SiO2 1.476 31.96 14 SiON 1.744 56.68 15 SiO2 1.476 47.4 16 SiON 1.744 44.12 17 SiO2 1.476 61.66 18 SiON 1.744 33.4 19 <![CDATA[SiO2]]> 1.476 70.9 20 SiON 1.744 25.34 21 SiO2 1.476 67.87 22 SiON 1.744 16.15 23* SiO2 1.476 25

[0091] * Layer 23 is the innermost layer of this AR coating, disposed above the substrate / display

[0092] According to one embodiment, a screen protection film 100'-100c' is provided, as Figures 1-1 C depicted in illustrative form in FIGS. 1A-1C, and is configured to be releasably adhered to an optical coating (e.g., AR coating 120-120b) disposed on a glass-containing display 110 of an electronic device 100-100b. The screen protection film 100'-100c' includes a glass-containing substrate 110' including an outer major surface 112' and an inner major surface 114', wherein the inner major surface 114' is opposite the outer major surface 112'; an anti-reflective (AR) coating 120'-120b' disposed on the outer major surface 112' of the glass-containing substrate 110'; and an intermediate layer 160 disposed on the inner major surface 114' of the glass-containing substrate 110'. The intermediate layer 160 is configured to be releasably adhered to an optical coating (e.g., AR coating 120-120b) disposed on a glass-containing display 110 of an electronic device 100-100b. The intermediate layer 160 includes an adhesive and has a physical thickness of about 10 pm to 500 pm. The intermediate layer 160 has one or more refractive indices, and each refractive index of the intermediate layer 160 is about 1.2 to about 1.6. Additionally, the average photopic reflectance of the screen protection film 100'-100c' releasably adhered to the optical coating (e.g., AR coating 120-120b) of the glass-containing display 110 is less than 2% for all angles of incidence from 0° to 30°.

[0093] According to another embodiment, there is provided Figures 1-1 C A screen protection film 100'-100c' depicted in exemplary form in the cross-section includes a glass-containing substrate 110' comprising an outer major surface 112' and an inner major surface 114', wherein the inner major surface 114' is opposite the outer major surface 112'; an anti-reflective (AR) coating 120'-120b' disposed on the outer major surface 112' of the glass-containing substrate 100'; and an intermediate layer 160 disposed on the inner major surface 114' of the glass-containing substrate 110'. The intermediate layer 160 comprises an optically clear adhesive (OCA) layer 160a disposed on the inner major surface 114' of the glass-containing substrate 110'; a polymer-containing layer 160b disposed on the OCA layer 160a; and a peelable adhesive layer 160c disposed on the polymer-containing layer 160b. The total thickness of the OCA layer 160a, the polymer-containing layer 160b, and the peelable adhesive layer 160c is about 10 μιη to 500 μιη. In addition, the OCA layer 160a, the polymer-containing layer 160b, and the peelable adhesive layer 160c each has a refractive index of about 1.2 to about 1.6.

[0094] According to another embodiment, there is provided Figures 1-1 C An article 200-200c depicted in exemplary form in the cross-section includes an electronic device 100-100b comprising an anti-reflective (AR) coating 120-120b disposed on a glass-containing display 110; and a screen protection film 100'-100c'. One such screen protection film 100' (see Figure 1) includes a glass-containing substrate 110' comprising an outer major surface 112' and an inner major surface 114', wherein the inner major surface 114' is opposite the outer major surface 112'; an AR coating 120'-120b' disposed on the outer major surface 112' of the glass-containing substrate 110'; and an intermediate layer 160 disposed on the inner major surface 114' of the glass-containing substrate 110'. The intermediate layer 160 includes an optically clear adhesive (OCA) layer 160a disposed on the inner major surface 114' of the glass-containing substrate 110'; a polymer-containing layer 160b disposed on the OCA layer 160a; and a peelable adhesive layer 160c disposed on the polymer-containing layer 160b. The total thickness of the OCA layer 160a, the polymer-containing layer 160b, and the peelable adhesive layer 160c is about 10 pm to 500 pm. Additionally, the OCA layer 160a, the polymer-containing layer 160b, and the peelable adhesive layer 160c each has a refractive index of about 1.2 to about 1.6. Additionally, the glass-containing substrate 110' includes a compressive stress region having a maximum compressive stress (CS) of at least 600 MPa and extending to a depth from the outer major surface 112'. Further, the peelable adhesive layer 160c is configured to peelably adhere to an AR coating 120-120b disposed on a glass-containing display 110 of an electronic device 100-100b.

[0095] According to one embodiment, a screen protection film 100a' is provided as depicted in Figure 1 A and configured to peelably adhere to an optical coating (e.g., AR coating 120a) disposed on a glass-containing display 110 of an electronic device 100a. The screen protection film 100a' can include an AR coating 120a' having a scratch resistant layer 150 with a physical thickness of about 75 nm to about 175 nm, at least one high refractive index (RI) layer 130B, and at least one low refractive index (RI) layer 130A, wherein the scratch resistant layer 150 and each high RI layer 130B includes a silicon nitride- or oxynitride-containing, and each low RI layer 130A includes a silicon oxide-containing, wherein the physical thickness of the AR coating 120a' is 250 nm to 450 nm, and wherein the screen protection film 100a' exhibits a hardness of 8 GPa or greater when the AR coating 120a' is measured by the Pencil Hardness Test at an indentation depth of about 100 nm or greater. Figure 1 A In one embodiment of the examples depicted in

[0096] According to one embodiment, a screen protection film 100b' is provided, the screen protection film being as depicted in Figure 1 B and configured to be peelably attached to an optical coating (e.g., AR coating 120b) disposed on a glass-containing display 110 of an electronic device 100b. The screen protection film 100b' can include an AR coating 120b' having a scratch resistant layer 150 with a physical thickness of about 300 nm to about 3000 nm, at least one high refractive index (RI) layer 130B, and at least one low refractive index (RI) layer 130a, wherein the scratch resistant layer 150 and each high RI layer 130B includes a silicon nitride or oxynitride containing layer, and each low RI layer 130a includes a silicon oxide containing layer, wherein the AR coating 120b' has a physical thickness of 750 nm to 3500 nm, and wherein the screen protection film 100b' exhibits a hardness of 12 GPa or greater when the AR coating 120b' is measured by the Berkovich Indenter Hardness Test at an indentation depth of about 100 nm or greater. Figure 1 B In one embodiment of the example depicted in

[0097] According to Figures 1 A-1 B another embodiment of the article 200a, 200b depicted in

[0098] Referring now to Figure 2A , a schematic of a three layer material having different refractive indices (e.g., a structure similar to some embodiments of the intermediate layer 160) is provided. Figure 2AThe best refractive index of the intermediate medium that can be used to illustrate the minimization of the total reflectance. There are three layers with different refractive indices and two interfaces in between. If the thickness of these layers is significantly larger than the coherence length of the light, the total reflectance is the sum of the Fresnel reflections caused by the refractive index discontinuities at the two interfaces. For a white light source, the coherence length is typically less than 1 μm, much smaller than the thickness of the elements of the intermediate layers 160 (e.g., OCA layer 160a, polymer-containing layer 160b, peelable adhesive layer 160c) in the screen protection films 100'-100c' (see Figures 1-1 C ).

[0099] If Figure 2A all three media in are homogeneous, i.e., have a uniform refractive index throughout the layer, the total reflectance at normal incidence is given by the Fresnel formula provided by equation (2) when measured in medium 1:

[0100]

[0101] Given the values of n1and n3, the value of n2that minimizes the total reflectance and the minimum R are given by following the formula provided by equation (3) as shown in Figure 2B . In practice, Figure 2B is Figure 2A a plot of the total reflectance of the three-layer material in the schematic diagram above versus the refractive index of its second layer. Note that the total reflectance does not depend on the thickness of any of the layers.

[0102]

[0103] If a graded refractive index material can be used for medium 2, where the refractive index varies continuously or in small fractions over the thickness, the total reflectance can be reduced to almost zero (<0.001%). The starting refractive index value of this graded refractive index layer at the medium 1 and medium 2 interface will be n1, and the ending refractive index value at the medium 2 and medium 3 interface will be n3. In the case of a graded refractive index layer, the reflectance asymptotically decreases to zero as the layer thickness increases. For layers thicker than 50 μm, the reflectance is small enough and practically can be considered as zero.

[0104] Now consider the structure of the screen protection film 100'-100b' in Figures 1-1 B . Using the above method, it is found that the best refractive index of the elements of the intermediate layer 160 is equivalent to solving the following optimization problem as given by equation (4):

[0105] with the conditions that: n OCA ≥ 1, n 聚合物 ≥ 1, n 硅酮≥ 1.

[0106] In addition, with respect to equation (4), n 玻璃 , n OCA , n 聚合物 , and n 硅酮 are the refractive indices of the glass-containing substrate 110', OCA layer 160a, polymer-containing layer 160b, and peelable adhesive layer 160c ("silicone") in the screen protection film 100'-100b', respectively (see Figures 1-1 B ), and y AR is the admittance of the AR coating 120-120b on the electronic device 100-100b. It should be noted that y AR is generally not equal to the refractive index of the outermost layer of the AR coating 120-120b (e.g., the low-RI layer 130A) and depends on the position of the coating, the type of coater, the coating method, and other factors. The constraints on n OCA , n 聚合物 , and n 硅酮 may be modified based on the refractive index ranges of available materials.

[0107] The following Table 2 shows the optimization results for selected AR coating 120-120b designs (i.e., Examples IB-IE, as shown in Tables IB-IE above) where n 玻璃 = 1.51 for the glass-containing substrate 110'. In the case of a graded refractive index layer for the intermediate layer 160 (e.g., layers 160a-160c), the OCA layer 160a will have a refractive index profile that starts with n 玻璃 at the glass-containing substrate 110' / OCA layer 160a interface and ends with n 聚合物 at the OCA layer 160a / polymer-containing layer 160b interface. Similarly, the peelable adhesive (silicone) layer 160c will have a refractive index profile that starts with n 聚合物 at the polymer-containing layer 160b / peelable adhesive (silicone) layer 160c interface and ends with n AR at the peelable adhesive (silicone) layer 160c / AR coating 120-120b interface.

[0108] Table 2 - Summary of optimized intermediate layer elements for various electronic device AR coatings (Examples IB-IE)

[0109]

[0110] According to another embodiment, the article 200c includes a screen protection film 100c' (see Figure 1 C), which is configured to improve mechanical properties (e.g., shatter resistance) and optical properties (e.g., improved contrast). Specifically, the screen protection film 100c' includes a glass-containing substrate 110' comprising an outer major surface 112' and an inner major surface 114', wherein the inner major surface 114' is opposite the outer major surface 112'; an AR coating 120'-120b' disposed on the outer major surface 112' of the glass-containing substrate 110'; a shatter (AS) resistant film 180 disposed on the inner major surface 114' of the glass-containing substrate 110'; and an interlayer 160 disposed on the AS film 180. In this embodiment, the AS film 180 includes a first optically clear adhesive (OCA) layer 180a disposed on the inner major surface 114' and a first polymer-containing layer 180b disposed on the first OCA layer 180a. Additionally, the interlayer 160 includes a second OCA layer 160a disposed on the first polymer-containing layer 180b; a second polymer-containing layer 160b disposed on the second OCA layer 160a; and a peelable adhesive layer 160c (e.g., silicone) disposed on the second polymer-containing layer 160b. Further, the total thickness of the second OCA layer 160a, the second polymer-containing layer 160b, and the peelable adhesive layer 160c is about 10 μιη to 500 μιη (collectively referred to as the physical thickness of the interlayer 160); and the total thickness of the AS film 180 is about 50 μιη to 150 μιη. Additionally, the first OCA layer 180a and the second OCA layer 160a, the first polymer-containing layer 180b and the second polymer-containing layer 160b, and the peelable adhesive layer 160c each have a refractive index of about 1.2 to about 1.6. In a preferred embodiment, the peelable adhesive layer 160c is configured to peelably adhere to the AR coating 120-120b disposed on the glass-containing display 110 of the electronic device 100-100b. In some additional embodiments, the glass-containing substrate 110' comprises a compressive stress region having a maximum compressive stress (CS) of at least 600 MPa and extending to a depth from the outer major surface 112'.

[0111] In summary, the article 200c and the screen protection film 100c' (see Figure 1 C ) benefit from the presence of the AS film 180, which imparts shatter resistance to the article. Notably, if the substrate 110' of the screen protection film 100c' is broken during use, the AS film 180 can retain any shards associated with this breakage. It is also understood that the AS film 180 detailed in this section, and its elements (i.e., layers 180a and 180b) described below, can optionally be used in the screen protection films 100'-100b' to impart shatter resistance to the articles 200-200b (as shown in Figures 1-1 B ).

[0112] In Figure 1 CIn some embodiments of the screen protector 100c' depicted in FIG, the physical thickness of the first OCA layer 180a is about 10 μm to 60 μm, 15 μm to 50 μm, or 25 μm to 40 μm. For example, the thickness of the first OCA layer 180a can be 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, and all thickness values ​​between these values. Preferably, the first OCA layer 180a includes an adhesive material, including any adhesive material mentioned earlier in this disclosure as suitable for the OCA layer 160a (see Figures 1-1 B and corresponding instructions).

[0113] according to Figure 1 C In some embodiments of the screen protector 100c' depicted in FIG, the physical thickness of the second OCA layer 160a is about 10 μm to 500 μm, 15 μm to 475 μm, 25 μm to 450 μm, or 50 μm to 400 μm. For example, the thickness of the second OCA layer 160a can be 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, 75 μm, 100 μm, 150 μm, 200 μm, 250 μm, 300 μm, 350 μm, 400 μm, 450 μm, and 500 μm, and all thickness values ​​between these values. Preferably, the second OCA layer 160a includes an adhesive material, including any adhesive material mentioned earlier in this disclosure as suitable for the OCA layer 160a (see Figures 1-1 B and corresponding instructions).

[0114] according to Figure 1 C In some embodiments of the screen protection film 100c' depicted in FIG, the physical thickness of one or both of the first polymer-containing layer 160b and the second polymer-containing layer 180b is about 5 μm to 150 μm, 10 μm to 125 μm, 12 μm to 100 μm, or 25 μm to 75 μm. For example, the thickness of one or both of the layers 160b and 180b can be 5 μm, 10 μm, 12 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, 70 μm, 75 μm, 100 μm, 125 μm, 150 μm, and all thickness values ​​between these values. The second polymer-containing layer 160b comprises any of the materials mentioned previously in this disclosure as suitable for the polymer-containing layer 160b (see Figures 1-1 B and corresponding instructions).

[0115] As mentioned previously, the screen protection film 100c' (see Figure 1 C) can be configured to improve optical properties, including contrast enhancement. In these embodiments, one or both of the first polymer-containing layer 160b and the second polymer-containing layer 180b include a cyclic olefin polymer (COP) (e.g., ZeonorFilm from Zeon Corporation). TM ), cellulose triacetate or polyurethane. In addition, preferably, one or both of layers 160b and 180b have a refractive index of about 1.4 to 1.6, or even more preferably, a refractive index of 1.45 to 1.55. Figure 1 C In some further embodiments of the screen protective film 100c' depicted in FIG, the polymer-containing layers 180b and 160b are each one of cyclic olefin polymer (COP), cellulose triacetate, and polyurethane. In some preferred embodiments, these layers 180b and 160b each have a refractive index of about 1.4 to 1.6, or even more preferably, a refractive index of 1.45 to 1.55. Advantageously, in these embodiments, the polymer-containing layer of the screen protective film 100c' and the article 200c employing the screen protective film (see FIG. Figure 1 C ) (e.g., COP, cellulose triacetate, or polyurethane) has a refractive index that is more suitable for accommodating and matching the AR coating and substrate of both screen protector 100c' and article 200c. In the aforementioned embodiment, given that PET has a refractive index of approximately 1.6, the presence of PET in either or both layers 160b and 180b may be detrimental to the overall contrast measured in article 200c due to buried reflections; therefore, the aforementioned embodiment utilizes materials for these layers 160b and 180b having a refractive index range that is more suitable for the elements of screen protector 100c' and article 200c (i.e., AR coating, substrate material, etc.).

[0116] Referring again to the products 200-200c, the screen protection films 100'-100c', the electronic devices 100-100b and the AR coatings 120'-120b', 120-120b (eg Figures 1-1 C ), any of these elements can be described in terms of hardness as measured by a Bosch indenter hardness test. As previously mentioned, the Bosch indenter hardness test involves indenting the outermost surface 122', 122 of the AR coating 120'-120b', 120-120b with a diamond Bosch indenter (see Figures 1-1 C) or the surface of any one or more of the AR coatings 120'-120b', 120-120b to form an indentation having a depth in the range of about 50 nm to about 1000 nm (or the entire thickness of the AR coating or its layers, whichever is smaller) or about 100 nm to about 500 nm, and measuring the maximum hardness of the indentation along the entire indentation depth range or a portion of the indentation depth (e.g., in the range of about 100 nm to about 250 nm at an indentation depth of 100 nm or greater).

[0117] In some embodiments, the articles 200-200c, screen protectors 100'-100c', electronic devices 100-100b, and AR coatings 120'-120b', 120-120b (eg, Figures 1-1 C ) can exhibit a hardness of about 8 GPa or greater, about 10 GPa or greater, or about 12 GPa or greater (e.g., about 14 GPa or greater, about 16 GPa or greater, about 18 GPa or greater, or about 20 GPa or greater). These measured hardness values ​​can be exhibited by these features along indentation depths of about 50 nm or greater or about 100 nm or greater (e.g., about 50 nm to about 300 nm, about 50 nm to about 400 nm, about 50 nm to about 500 nm, about 50 nm to about 600 nm, about 100 nm to about 300 nm, about 100 nm to about 400 nm, about 100 nm to about 500 nm, or about 100 nm to about 600 nm, about 200 nm to about 300 nm, about 200 nm to about 400 nm, about 200 nm to about 500 nm, or about 200 nm to about 600 nm). These hardness values ​​can also be measured from the outermost surface 122', 122 of the AR coating 120'-120b', 120-120b to a depth of 200 nm. In one or more embodiments, the AR coating 120'-120b', 120-120b exhibits a hardness greater than the hardness of the glass-containing substrate 110' and / or the glass-containing display 110 (which can be measured on the surface opposite the outermost surface 122', 122 (e.g., the inner major surface 114', 114)).

[0118] According to the products 200-200c, the screen protection films 100'-100c', the electronic devices 100-100b and the AR coatings 120'-120b', 120-120b (eg Figures 1-1 CAny of these features can exhibit an average photopic reflectance (1st surface) of less than about 2%, 1.8%, 1.5%, or even less than 1.2%, as measured at all incident viewing angles from 0° to 30° or 0° to 15°, in accordance with some embodiments depicted in FIGS. 1-3. For example, a screen protection film 100'-100c' peelably attached to an AR coating 120-120b over a glass-containing display 110 of an electronic device 100-100b, article 200-200c, etc., can exhibit the following average photopic reflectance, as measured at all incident viewing angles from 0° to 30° or 0° to 15°, for example: 2%, 1.9%, 1.8%, 1.7%, 1.6%, 1.5%, 1.4%, 1.3%, 1.2%, 1.1%, 1.0%, and all average photopic reflectance values between these levels.

[0119] According to some embodiments of a screen protection film 100'-100c' employed in articles 200-200c, these screen protection films can exhibit a contrast ratio of at least 5, at least 7.5, and / or at least 10, at display brightness values of 200 nits, 300 nits, and 400 nits, respectively. For example, these screen protection films 100'-100c' can exhibit a contrast ratio of at least 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15, at a display brightness value of 200 nits, and / or a contrast ratio of at least 10, at a display brightness value of 400 nits. In some embodiments, these screen protection films 100'-100c' employ a polymer-containing layer 160b and / or 180b having a refractive index in a range from about 1.4 to 1.6, or 1.45 to 1.55, and / or comprising a cyclic olefin polymer (COP), cellulose triacetate, or polyurethane.

[0120] Glass-containing substrate 110' and glass-containing display 110 can include inorganic materials, and can include amorphous substrates, crystalline substrates, or combinations thereof. Substrate 110' and display 110 can be formed from man-made materials and / or naturally occurring materials, such as quartz and polymers. For example, in some cases, substrate 110' and display 110 can be characterized as organic, and in particular, can be polymeric. Examples of suitable polymers include, but are not limited to, thermoplastics, including polystyrene (PS) (including styrene copolymers and blends); polycarbonate (PC) (including copolymers and blends); polyesters (including copolymers and blends, including polyethylene terephthalate and polyethylene terephthalate copolymers); polyolefins (PO) and cyclic polyolefins (cyclic PO); polyvinyl chloride (PVC); acrylic polymers, including polymethyl methacrylate (PMMA) (including copolymers and blends); thermoplastic urethane (TPU); polyetherimide (PEI); and blends of these polymers with one another. Other exemplary polymers include epoxy resins, styrene resins, phenol resins, melamine resins, and silicone resins.

[0121] In some embodiments, glass-containing substrate 110' and glass-containing display 110 can specifically exclude polymeric materials, plastics, and / or metallic materials. Substrate 110' and display 110 can be characterized as alkali metal-containing substrates (i.e., substrate 110' and display 110 include one or more alkali metals). In one or more embodiments, substrate 110' and display 110 exhibit a refractive index in a range from about 1.45 to about 1.55. In particular embodiments, one of skill in the art of the present disclosure will appreciate that substrate 110' and display 110 can exhibit an average strain-to-failure of 0.5% or greater, 0.6% or greater, 0.7% or greater, 0.8% or greater, 0.9% or greater, 1% or greater, 1.1% or greater, 1.2% or greater, 1.3% or greater, 1.4% or greater, 1.5% or greater, or even 2% or greater at a surface on one or more of the opposing major surfaces when measured using the ball-on-ring testing using at least 5, at least 10, at least 15, or at least 20 samples. In particular embodiments, substrate 110' and display 110 can exhibit an average strain-to-failure of about 1.2%, about 1.4%, about 1.6%, about 1.8%, about 2.2%, about 2.4%, about 2.6%, about 2.8%, or about 3% or greater at a surface on one or more of the opposing major surfaces.

[0122] Suitable substrates for glass-containing substrates 110' and glass-containing displays 110 can exhibit an elastic modulus (or Young's modulus) in the range of about 30 GPa to about 120 GPa. In some cases, the elastic modulus of the substrate can be in the range of about 30 GPa to about 110 GPa, about 30 GPa to about 100 GPa, about 30 GPa to about 90 GPa, about 30 GPa to about 80 GPa, about 30 GPa to about 70 GPa, about 40 GPa to about 120 GPa, about 50 GPa to about 120 GPa, about 60 GPa to about 120 GPa, about 70 GPa to about 120 GPa, and all ranges and sub-ranges therebetween.

[0123] In one or more embodiments, glass-containing substrates 110' and glass-containing displays 110 can be strengthened or unstrengthened. Examples of suitable glasses include soda-lime glass, alkali-aluminosilicate glass, alkali-containing borosilicate glass, and alkali-aluminoborosilicate glass. In some variations, the glass can be free of lithium oxide. In one or more alternative embodiments, glass-containing substrates 110' and glass-containing displays 110 can include crystalline substrates, such as glass-ceramic substrates (which can be strengthened or unstrengthened) or can include a single crystal structure, such as sapphire. In one or more specific embodiments, substrates 110' and displays 110 include an amorphous base (e.g., glass) and a crystalline cladding layer (e.g., a sapphire layer, a polycrystalline alumina layer, and / or a spinel (MgAl2O4) layer).

[0124] In some embodiments, glass-containing substrates 110' and glass-containing displays 110 can include any of the glass substrate compositions (with or without a specified AR coating) shown in U.S. Provisional Patent Application No. 63 / 430,186, filed December 5, 2022, entitled “Coated Glass Articles,” the important content of which is hereby incorporated by reference.

[0125] The hardness of glass-containing substrates 110' and glass-containing displays 110 of one or more embodiments can be less than the hardness (measured by the Knoop Hardness Test described herein) of the overall article 200-200b. Unless otherwise indicated, the hardness of substrates 110' and displays 110 is measured using the Knoop Hardness Test.

[0126] The glass-containing substrate 110' and glass-containing display 110 can be substantially optically clear, transparent, and free of light-scattering elements. In these embodiments, the substrate 110' and display 110 can exhibit an average light transmission of about 85% or greater, about 86% or greater, about 87% or greater, about 88% or greater, about 89% or greater, about 90% or greater, about 91% or greater, or about 92% or greater in the optical wavelength range. In some embodiments, these light reflectance and transmission values can be total reflectance or total transmission (accounting for reflectance or transmission on both major surfaces 112, 112', 114, 114' of the substrate 110' and display 110), or can be observed on a single side of the substrate 110' and display 110 (i.e., only on the outermost surface 122', 122 of the AR coating 120'-120b', 120-120b, not accounting for the opposing surface). Unless otherwise noted, the average reflectance or transmission of the substrate 110' and display 110 alone is measured at an incident illumination angle of 0 degrees relative to the major surface 112 of the substrate (however, these measurements can also be provided at an incident illumination angle of 45 degrees or 60 degrees). The substrate 110' and display 110 can optionally exhibit a color, such as white, black, red, blue, green, yellow, orange, etc.

[0127] Additionally or alternatively, the physical thickness of the glass-containing substrate 110' and glass-containing display 110 can vary along one or more dimensions thereof for aesthetic and / or functional reasons. For example, the edges of the substrate 110' and display 110 can be thicker compared to more central regions of the substrate 110' and display 110. The length, width, and physical thickness dimensions of the substrate 110' and display 110 can also vary depending on the application or use of the article 200-200b.

[0128] The glass-containing substrate 110' and glass-containing display 110 can be provided using a variety of different processes. For example, where the substrate 110' and display 110 comprises an amorphous substrate, such as glass, various formation methods can include float glass processes and down-draw processes, such as fusion down-draw and slot down-draw.

[0129] Upon formation, the glass-containing substrate 110' and glass-containing display 110 can be strengthened to form a strengthened substrate. As used herein, the term "strengthened substrate" can refer to a substrate that has been chemically strengthened, for example, by ion exchange of larger ions for smaller ions in the surface of the substrate. However, other strengthening methods known in the art, such as thermal tempering, or the use of a mismatch in the coefficient of thermal expansion between portions of the substrate to create a compressive stress and central tension zone, can also be utilized to form a strengthened substrate.

[0130] When chemically strengthening glass substrates 110' and glass displays 110 via ion exchange, ions in the substrate's surface layer are replaced or exchanged with larger ions of the same valence or oxidation state. The ion exchange process is typically performed by immersing the substrate in a molten salt bath containing the larger ions to be exchanged for the smaller ions in the substrate. Those skilled in the art will appreciate that the parameters of the ion exchange process are typically determined by the composition of the substrate and the desired compressive stress (CS) and depth of compressive stress layer (or depth of layer DOL or depth of compression DOC) of the substrate resulting from the strengthening operation. These parameters include, but are not limited to, bath composition and temperature; immersion time; the number of immersions of the substrate in one or more salt baths; the use of multiple salt baths; and additional steps such as annealing and washing. For example, ion exchange of alkali-containing glass substrates can be achieved by immersing the substrate in a molten salt bath containing larger alkali metal ions, such as, but not limited to, nitrates, sulfates, and chlorides. The temperature of the molten salt bath is typically in the range of about 380°C to about 450°C, and the immersion time is in the range of about 15 minutes to about 40 hours. However, temperatures and immersion times different from those described above may also be used.

[0131] Additionally, non-limiting examples of ion exchange processes in which a glass substrate is immersed in multiple ion exchange baths with washing and / or annealing steps between each immersion are described in U.S. Patent Application No. 12 / 500,650, filed July 10, 2009, by Douglas C. Allan et al., entitled “Glass with Compressive Surface for Consumer Applications,” which claims priority to U.S. Provisional Patent Application No. 61 / 079,995, filed July 11, 2008, in which a glass substrate is strengthened by multiple, sequential ion exchange treatments in salt baths of varying concentrations; and in U.S. Patent Application No. 12 / 500,650, filed July 10, 2009, by Christopher M. Lee et al., entitled “Dual Stage Ion Exchange for Chemical Strengthening of No. 8,312,739, filed on July 29, 2008, which claims priority to U.S. Provisional Patent Application No. 61 / 084,398, filed on July 29, 2008, in which a glass substrate is strengthened by ion exchange in a first bath diluted with effluent ions followed by immersion in a second bath having a lower concentration of effluent ions than the first bath. The contents of U.S. Patent Application No. 12 / 500,650 and U.S. Patent No. 8,312,739 are incorporated herein by reference in their entirety.

[0132] The degree of chemical strengthening achieved by ion exchange can be quantified in terms of central tension (CT), surface CS, and depth of compression (DOC) parameters. Compressive stress, including surface CS, can be measured by surface stress meter (FSM), using a commercially available instrument, such as the FSM-6000 manufactured by Orihara Industrial Co., Ltd. Surface stress measurements rely on accurate measurement of the stress-optical coefficient (SOC) associated with the birefringence of the glass. SOC, in turn, is measured according to Procedure C (glass disk method) described in ASTM Standard C770-16 entitled "Standard Test Method for Measurement of Glass Stress-Optical Coefficient," the contents of which are incorporated herein by reference in their entirety. The maximum CT value is measured using scattered light polariscope (SCALP) techniques known in the art. As used herein, DOC means the depth at which the stress in a chemically strengthened alkali-aluminosilicate glass article described herein changes from being compressive to being tensile. DOC can be measured by FSM or SCALP, depending on the ion exchange treatment. When stress is created in a glass article by exchanging potassium ions into the glass article, DOC is measured using FSM. When stress is created by exchanging sodium ions into the glass article, DOC is measured using SCALP. When stress is created in a glass article by exchanging both potassium and sodium ions into the glass, DOC is measured by SCALP because the exchange depth of sodium is believed to be indicative of DOC, and the exchange depth of potassium is believed to be indicative of a change in magnitude of compressive stress (but not a change in stress from compressive to tensile); the exchange depth of potassium in such glass articles is measured by FSM.

[0133] In one embodiment, the surface CS of the glass-containing substrate 110' and the glass- containing display 110 can be 200 MPa or more, 250 MPa or more, 300 MPa or more, such as 400 MPa or more, 450 MPa or more, 500 MPa or more, 550 MPa or more, 600 MPa or more, 650 MPa or more, 700 MPa or more, 750 MPa or more, or 800 MPa or more. The strengthened substrate can have a DOC (previously referred to as DOL) of 10 pm or more, 15 pm or more, 20 pm or more (such as 25 pm, 30 pm, 35 pm, 40 pm, 45 pm, 50 pm or more), and / or a CT of 10 MPa or more, 20 MPa or more, 30 MPa or more, 40 MPa or more (such as 42 MPa, 45 MPa, or 50 MPa or more), but less than 100 MPa (such as 95, 90, 85, 80, 75, 70, 65, 60, 55 MPa or less). In one or more particular embodiments, the strengthened substrate 110' and / or the display 110 has one or more of a surface CS greater than 500 MPa, a DOC (previously referred to as DOL) greater than 15 pm, and a CT greater than 18 MPa.

[0134] Example glasses that can be used in the glass-containing substrate 110' and the glass- containing display 110 can include alkali alumino-silicate glass compositions or alkali alumino-boro-silicate glass compositions, although other glass compositions are contemplated. These glass compositions are capable of being chemically strengthened by an ion exchange process. One example glass composition includes Si02, B203, and Na20, where (Si02+ B203) > 66 mol% and Na20 > 9 mol%. In one embodiment, the glass composition includes at least 6 wt% alumina. In another embodiment, the substrate includes a glass composition that includes one or more alkaline earth metal oxides such that the content of the alkaline earth metal oxides is at least 5 wt%. In some embodiments, suitable glass compositions also include at least one of K20, MgO, and CaO. In one particular embodiment, the glass composition used in the substrate can include 61-75 mol% Si02; 7-15 mol% Al203; 0-12 mol% B203; 9-21 mol% Na20; 0-4 mol% K20; 0-7 mol% MgO; and 0-3 mol% CaO.

[0135] Another example glass composition suitable for the glass-containing substrate 110' and the glass-containing display 110 includes: 60-70 mol% Si02; 6-14 mol% AI2O3; 0-15 mol% B203; 0-15 mol% Li20; 0-20 mol% Na20; 0-10 mol% K20; 0-8 mol% MgO; 0-10 mol% CaO; 0-5 mol% Zr02; 0-1 mol% Sn02; 0-1 mol% Ce02; less than 50 ppm As203; and less than 50 ppm Sb203; where 12 mol% < (Li20 + Na20 + K20) < 20 mol% and 0 mol% < (MgO + CaO) < 10 mol%.

[0136] Another example glass composition suitable for the glass-containing substrate 110' and the glass-containing display 110 includes: 63.5-66.5 mol% Si02; 8-12 mol% AI2O3; 0-3 mol% B203; 0-5 mol% Li20; 8-18 mol% Na20; 0-5 mol% K20; 1-7 mol% MgO; 0-2.5 mol% CaO; 0-3 mol% Zr02; 0.05-0.25 mol% Sn02; 0.05-0.5 mol% Ce02; less than 50 ppm As203; and less than 50 ppm Sb203; where 14 mol% < (Li20 + Na20 + K20) < 18 mol% and 2 mol% < (MgO + CaO) < 7 mol%.

[0137] In one particular embodiment, an alkali alumino-silicate glass composition suitable for the glass-containing substrate 110' and the glass-containing display 110 includes alumina, at least one alkali metal, and in some embodiments, greater than 50 mol% Si02, in other embodiments, at least 58 mol% Si02, and in yet other embodiments, at least 60 mol% Si02, where the ratio (AI2O3 + B2O3) / Σ modifiers (i.e., sum of modifiers) is greater than 1, where in the ratio, components are expressed in mol% and modifiers are alkali oxides. In particular embodiments, this glass composition includes: 58-72 mol% Si02; 9-17 mol% AI2O3; 2-12 mol% B2O3; 8-16 mol% Na20; and 0-4 mol% K20, where the ratio (AI2O3 + B2O3) / Σ modifiers (i.e., sum of modifiers) is greater than 1.

[0138] In still another embodiment, the glass-containing substrate 110' and the glass- containing display 110 can include an alkali alumino-silicate glass composition comprising: 64-68 mol% Si02; 12-16 mol% Na20; 8-12 mol% AI2O3; 0-3 mol% B203; 2-5 mol% K20; 4-6 mol% MgO; and 0-5 mol% CaO, wherein: 66 mol% < Si02+ B203+ CaO < 69 mol%; Na20 + K20 + B203+ MgO + CaO + SrO > 10 mol%; 5 mol% < MgO + CaO + SrO < 8 mol%; (Na20 + B203) - AI2O3 < 2 mol%; 2 mol% < Na20 - AI2O3 < 6 mol%; and 4 mol% < (Na20 + K20) - AI2O3 < 10 mol%.

[0139] In an alternative embodiment, the glass-containing substrate 110' and the glass- containing display 110 can include an alkali alumino-silicate glass composition comprising: 2 mol% or more AI2O3 and / or Zr02 2， or 4 mol% or more AI2O3 and / or Zr02.

[0140] In embodiments where the glass-containing substrate 110' and the glass- containing display 110 include a crystalline substrate, the substrate can include a single crystal, which can include AI2O3. Such single crystal substrates are referred to as sapphire. Other suitable materials for crystalline substrates include polycrystalline alumina layers and / or spinel (MgAI2O4).

[0141] Optionally, the glass-containing substrate 110' and the glass-containing display 110 can be crystalline and include a glass-ceramic substrate, which can or can not be strengthened. Examples of suitable glass-ceramics can include Li20-Al203-Si02system (i.e., LAS system) glass-ceramics, MgO-Al203-Si02system (i.e., MAS system) glass-ceramics, and / or glass-ceramics including a primary crystalline phase comprising β-quartz solid solution, β-spodumene ss, cordierite, and lithium disilicate. The glass-ceramic substrates can be strengthened using the chemical strengthening methods disclosed herein. In one or more embodiments, the MAS system glass-ceramic substrates can be strengthened in a Li2SO4molten salt, whereby the 2Li + exchange with Mg 2+ .

[0142] Glass-containing substrates 110' and glass-containing displays 110 according to one or more embodiments can have a physical thickness in various portions of the substrates 110' and displays 110 in a range from about 50 μιη to about 5 mm. Example substrates 110' and displays 110 can have a physical thickness in a range from about 50 μιη to about 500 μιη (e.g., 50, 75, 100, 200, 300, 400, or 500 μιη). Other example substrates 110' and displays 110 can have a physical thickness in a range from about 50 μιη to about 5000 μιη (e.g., 50, 75, 100, 250, 500, 600, 700, 800, 900, 1000, 1250, 1500, 1750, 2000, 2500, 3000, 3500, 4000, 4500, or 5000 μιη). The substrates 110' and displays 110 can have a physical thickness greater than about 1 mm (e.g., about 2, 3, 4, or 5 mm). In one or more particular embodiments, the substrates 110' and displays 110 can have a physical thickness of 2 mm or less, or less than 1 mm. The substrates 110' and displays 110 can be subjected to acid polishing or other means to remove or reduce the effects of surface defects.

[0143] Referring again to the articles 200-200c (as depicted in exemplary form in Figures 1-1 C the drawings herein) of the present disclosure, the AR coatings 120'-120b', 120-120b can be formed by various deposition techniques readily understood by those of skill in the art of the present disclosure, such as reactive sputtering. Additionally, given the relatively high number of layers and total thickness associated with embodiments of the AR coatings 120'-120b', 120-120b, the reactive sputtering deposition can be tuned to lower power levels (e.g., 1-2.5 kW in the inductively coupled reactive plasma zone of a metal-mode sputter drum coater) to minimize the substrate temperature during deposition, less than 300 °C. Without being bound by theory, this method tuning can serve to preserve a maximum level of the induced compressive stress of the chemical strengthening in the strengthened glass-containing substrates 110' and displays 110.

[0144] The articles 200-200c (as depicted in exemplary form in Figures 1-1 C the drawings herein and as disclosed herein) can be incorporated into another article, such as an article with a display (or display article) (e.g., a consumer electronic product, including a mobile phone, a tablet computer, a computer, a navigation system, etc.), an architectural article, a transportation article (e.g., an automobile, a train airplane, a sea vessel, etc.), an appliance article, or any article having one or more sensors that require protection (e.g., scratch resistance, abrasion resistance, hardness, chemical durability, or a combination thereof) and optical bandpass filtering capability.

[0145] Referring now toFigure 1 D , provides a schematic diagram of an electronic device 100-100b with an AR coating (not shown), wherein the electronic device 100-100b is in the form of a mobile phone device. More specifically, the electronic device 100-100b includes: a housing 202 having a front surface 204, a rear surface 206, and a side surface 208; and an electronic component (not shown) at least partially located within the housing 202 or completely within the housing 202. In addition, the electronic device 100-100b includes a display 212, which may include a glass display 110 and an AR coating 120 ( Figure 1 D Not shown; but see Figures 1-1 C ). In addition, the display 210 is located at or near the front surface 204 of the housing 202. Figure 1 E , provides schematic diagrams of articles 200-200c, which include AR screen protection films 100'-100c' (see also Figures 1-1 C ) and electronic devices 100-100b (see Figure 1 D ).like Figure 1 D and 1E As shown in FIG, screen protectors 100 ′- 100 c ′ are releasably attached to electronic devices 100 - 100 b , and the two elements define articles 200 - 200 c .

[0146] Examples

[0147] Various embodiments of articles 200-200b, screen protectors 100'-100b', and electronic devices 100-100b (see Figures 1-1 B ) will be further illustrated by the following examples. Below are some examples of calculated photopic reflectance using the optimal interlayer 160 elements (e.g., OCA layer 160a, polymer-containing layer 160b, and releasable adhesive layer 160c) for different AR coating combinations used in screen protectors and glass-containing displays of electronic devices of the present disclosure. It should be noted that these calculated photopic reflectance values ​​do not include subsurface reflections caused by the display electronics or touch sensor layers, which may appear in varying amounts. In other words, the calculated photopic reflectance values ​​given here include all of the screen protector layers, interlayers, and all AR coatings on the glass-containing display (including the interface between the AR coating and the glass-containing display), but do not include buried reflections below the surface of the AR coating on the glass-containing display, which may vary depending on the details of the display electronics (e.g., thin-film transistors and other display layers). In the following Examples 1-4 and 5-8, the AR coating of the screen protector is Example 1A or Example 1B (see Tables 1A and 1B), and the AR coating on the glass-containing display of the electronic device is any of Examples 1B-1E (see Tables 1B-1E).

[0148] In general, Figures 3-6 The average photopic reflectance of screen protection films with an intermediate layer containing elements with uniform refractive index values (designated as Examples 3A-3B, 4A-4B, 5A-5B, and 6A-6B) using the optimization results listed in Table 2 (see above) is shown in comparison to standalone electronic devices with AR coatings but without screen protection films (designated as Comparative Examples 3-6). Figures 7-10 The average photopic reflectance of exemplary graded-index screen protection films with linear refractive index gradients in the OCA layer and the releasable adhesive (silicone) layer, respectively, and uniform refractive index in the polymer-containing layer is shown. For the OCA layer in this concept, the graded-index profile starts at n 玻璃 (= 1.51) at the glass display - OCA layer interface and ends at n 聚合物 (= 1.65) at the OCA layer - polymer-containing layer interface. For the releasable adhesive (silicone) layer, the graded-index profile starts at n 聚合物 (= 1.65) at the polymer-containing layer - releasable adhesive (silicone) layer interface and ends at n AR = |y AR | at the releasable adhesive layer (silicone) - AR coating interface (i.e., for AR coating design examples IB, 1C, ID, and IE, n is 1.1728, 1.1614, 1.3309, and 1.5508, respectively). In addition, the polymer-containing layer has a uniform refractive index of n 聚合物 (= 1.65). All graded-index examples described herein utilize the aforementioned configuration where the intermediate layer containing the OCA layer and the releasable adhesive layer elements have graded-index values, and the polymer-containing layer has a uniform refractive index (designated as Examples 7A-7B, 8A-8B, 9A-9B, and 10A-10B) in comparison to standalone electronic devices with AR coatings but without screen protection films (designated as Comparative Examples 7-10). In these calculations, the glass substrate of the screen protection film and the glass display of the electronic device utilize the dispersion properties of Glass 3, respectively. For the cases employing intermediate layers with graded-index elements (Examples 5-8), a uniform refractive index profile of n 聚合物 = 1.65 is used for the polymer-containing layer of the intermediate layer. Different refractive index profiles, such as a polynomial or Gaussian profile, for the individual elements of the intermediate layer can be used to further improve the reflectance of the article containing the screen protection film and the electronic device.

[0149] For the cases employing intermediate layers with uniform refractive index for each element (Examples 1-4), the photopic reflectance at normal incidence can be approximated by the equation given by Equation (5) below:

[0150] R 总 = R 最大值 + R 最小值 (5)

[0151] In equation (5), R 最大值 is the normal incidence photopic reflectance of the AR coating of the stand-alone screen protection film and R 最小值 is the minimum value obtained from solving the aforementioned optimization problem (see Table 2 and corresponding equations).

[0152] Examples 1-4

[0153] In these examples, the photopic reflectance of screen protection films having various AR coating designs and an interlayer having uniform refractive index elements (e.g., OCA layer, polymer-containing layer, and peelable adhesive layer each having a uniform refractive index) peelably attached to electronic devices comprising glass-containing displays having various AR coating designs were compared. Additionally, comparative examples of stand-alone displays having various AR coating designs were also modeled.

[0154] In Example 1, screen protection films (SP) having two AR coating designs (Examples 1A and IB) and an interlayer having a uniform refractive index were modeled as peelably attached to electronic devices comprising glass-containing displays having an AR coating design (Example IB). Comparative electronic devices comprising glass-containing displays having an AR coating design (Example IB) were also modeled. Thus, this example includes three sample configurations: Example 3A (SP having AR coating of Example 1A + display having AR coating of Example IB), Example 3B (SP having AR coating of Example IB + display having AR coating of Example IB), and Comparative Example 3 (display having AR coating of Example IB).

[0155] In Example 2, screen protection films (SP) having two AR coating designs (Examples 1A and IB) and an interlayer having a uniform refractive index were modeled as peelably attached to electronic devices comprising glass-containing displays having an AR coating design (Example 1C). Comparative electronic devices comprising glass-containing displays having an AR coating design (Example 1C) were also modeled. Thus, this example includes three sample configurations: Example 4A (SP having AR coating of Example 1A + display having AR coating of Example 1C), Example 4B (SP having AR coating of Example IB + display having AR coating of Example 1C), and Comparative Example 4 (display having AR coating of Example 1C).

[0156] In Example 3, screen protection films (SPs) having two AR coating designs (Examples 1A and 1B) and a uniform refractive index in the middle layer were modeled as being peelably attached to electronic devices including glass-containing displays having an AR coating design (Example 1D). Comparative electronic devices including glass-containing displays having an AR coating design (Example 1D) were also modeled. Thus, this example includes three sample configurations: Example 5A (SP with AR coating of Example 1A + display with AR coating of Example 1D), Example 5B (SP with AR coating of Example 1B + display with AR coating of Example 1D), and Comparative Example 5 (display with AR coating of Example 1D).

[0157] In Example 4, screen protection films (SPs) having two AR coating designs (Examples 1A and 1B) and a uniform refractive index in the middle layer were modeled as being peelably attached to electronic devices including glass-containing displays having an AR coating design (Example 1E). Comparative electronic devices including glass-containing displays having an AR coating design (Example 1E) were also modeled. Thus, this example includes three sample configurations: Example 6A (SP with AR coating of Example 1A + display with AR coating of Example 1E), Example 6B (SP with AR coating of Example 1B + display with AR coating of Example 1E), and Comparative Example 6 (display with AR coating of Example 1E).

[0158] Referring now to Figures 3-6 , schematic diagrams of the samples modeled in Examples 1-4 (see above) are provided, where each figure shows the photopic reflectance as a function of the angle of incidence for a particular example (e.g. Figure 3 corresponding to Example 1, Figure 4 corresponding to Example 2, and so on). From Figures 3-6 It is apparent that screen protection films having the AR coating designs of Examples 1A and 1B will increase the photopic reflectance of electronic devices having the AR coating designs of Example 1B and Example 1C, but will decrease the photopic reflectance of electronic devices having the AR coating designs of Example 1D and Example 1E.

[0159] Examples 5-8

[0160] In these examples, photopic reflectance of screen protection films having various AR coating designs and an interlayer having a graded index element (e.g., the OCA layer and the releasable adhesive layer each having a graded index across their respective entire thicknesses and the polymer-containing layer having a uniform index of refraction) releasably attached to electronic devices including glass-containing displays having various AR coating designs were compared. Additionally, comparative examples of standalone displays having various AR coating designs were also modeled.

[0161] In Example 5, screen protection films (SPs) having two AR coating designs (Examples 1A and 1B) and an interlayer having a graded index (i.e., the OCA layer and the releasable adhesive layer having a graded index and the polymer-containing layer having a uniform index of refraction) were modeled as releasably attached to electronic devices including glass-containing displays having an AR coating design (Example 1B). Comparative electronic devices including glass-containing displays having an AR coating design (Example 1B) were also modeled. Thus, this example includes three sample configurations: Example 7A (SP with AR coating of Example 1A + display with AR coating of Example 1B), Example 7B (SP with AR coating of Example 1B + display with AR coating of Example 1B), and Comparative Example 7 (display with AR coating of Example 1B).

[0162] In Example 6, screen protection films (SPs) having two AR coating designs (Examples 1A and 1B) and an interlayer having a graded index were modeled as releasably attached to electronic devices including glass-containing displays having an AR coating design (Example 1C). Comparative electronic devices including glass-containing displays having an AR coating design (Example 1C) were also modeled. Thus, this example includes three sample configurations: Example 8A (SP with AR coating of Example 1A + display with AR coating of Example 1C), Example 8B (SP with AR coating of Example 1B + display with AR coating of Example 1C), and Comparative Example 8 (display with AR coating of Example 1C).

[0163] In Example 7, screen protection films (SPs) having two AR coating designs (Examples 1A and IB) and intermediate layers with graded refractive indices (i.e., OCA layers and peelable adhesive layers with graded refractive indices and polymer-containing layers with uniform refractive indices) were modeled as peelably attached to electronic devices that included glass-containing displays with AR coating designs (Example ID). Comparative electronic devices that included glass-containing displays with AR coating designs (Example ID) were also modeled. Thus, this example includes three sample configurations: Example 9A (SP with AR coating of Example 1A + display with AR coating of Example ID), Example 9B (SP with AR coating of Example IB + display with AR coating of Example ID), and Comparative Example 9 (display with AR coating of Example ID).

[0164] In Example 8, screen protection films (SPs) having two AR coating designs (Examples 1A and IB) and intermediate layers with graded refractive indices (i.e., OCA layers and peelable adhesive layers with graded refractive indices and polymer-containing layers with uniform refractive indices) were modeled as peelably attached to electronic devices that included glass-containing displays with AR coating designs (Example IE). Comparative electronic devices that included glass-containing displays with AR coating designs (Example IE) were also modeled. Thus, this example includes three sample configurations: Example 10A (SP with AR coating of Example 1A + display with AR coating of Example IE), Example 10B (SP with AR coating of Example IB + display with AR coating of Example IE), and Comparative Example 10 (display with AR coating of Example IE).

[0165] Referring now to Figures 7-10 , there are provided schematic diagrams of the samples modeled in Examples 5-8 (see above), where each figure shows the variation of the photopic reflectance with angle of incidence for a particular example (e.g., Figure 7 corresponding to Example 5, Figure 8 corresponding to Example 6, and so on). From Figures 7-10 It is apparent from the above that the reflectance of screen protection films having AR coating designs of Example 1A and intermediate layers with graded refractive index elements (i.e., OCA layers and peelable adhesive layers with graded refractive indices and polymer-containing layers with uniform refractive indices) is reduced much less on electronic devices having AR coating designs of Example IB and Example 1C than the same configurations employing intermediate layers with elements having uniform refractive index values. From Figures 7-10 It is also apparent from the above that screen protection films having AR coating designs of Example IB and intermediate layers with graded refractive index elements improve the photopic reflectance of electronic devices having each of the four AR coating designs (i.e., Examples IB-IE).

[0166] Referring now to Figure 11 A and 11B , bar graphs are provided to summarize the photopic reflectance data depicted in Figures 3-6 and 7-10, respectively, when viewed at normal incidence (about 0°). Finally, Figure 11 A and 11B indicate that for electronic devices employing the AR coating designs of Example 1D and 1E, there is no material advantage to employing a screen protector film with an intermediate layer having a graded index element (i.e., the OCA layer and the strippable adhesive layer have a graded index and the polymer-containing layer has a uniform index) compared to a screen protector film employing an intermediate layer with a uniform index element.

[0167] Example 9

[0168] For some designs, there is no available material with an optimal index to use as an element of the intermediate layer of a screen protector film. In this example, the constraint conditions in the optimization problem (see Table 2 above and the corresponding description) can be changed to reflect the available index range of materials suitable for use in the intermediate layer. Specifically, the AR coating designs of Example 1A and Example 1B are modeled for a screen protector film that is strippably attached to an electronic display having the AR coating design of Example 1C and that satisfies the constraint conditions given by Equation (6) below:

[0169] 1.4 < n OCA < 1.6, 1.4 < n 聚合物 < 1.6, and 1.4 < n 硅酮 < 1.6. (6)

[0170] Under these constraint conditions, the optimization results are then n OCA = 1.47, n 聚合物 = 1.43, and n 硅酮 = 1.40. Figure 12 A comparison of the photopic reflectance calculated using these indices (Example 12A) with the photopic reflectance obtained in the full range optimization (see above, designated here as Example 12B) is shown. For a screen protector film with both the AR coating designs of Example 1A and Example 1B, the photopic reflectance increases by about 0.43% over the limited range of indices.

[0171] Example 10

[0172] In this example, the photopic reflectance of a screen protector film having the AR coating designs of Example 1A and 1B on an electronic device having the AR coating design of Example 1C on a glass-containing display is modeled. The glass-containing display of this example is a ​Glass The compositions for the glass-containing displays are illustrated in Table 3 below. In addition, in this example, the refractive index of the interlayer element is varied. Specifically, Figure 13A and 13B The average photopic reflectance plots in FIGS. 1 硅酮 ") from 1.3 to 1.5. In addition, the average photopic reflectance for a standalone display employing the AR coating of Example 1C is provided as a comparison (designated as Comparative Example 13A and 13B, respectively, in FIGS. 1 Figure 13A and 13B The results provided differ depending on the refractive index values of the OCA layer (n = 1.45, 1.50, 1.55) and the polymer-containing layer (n = 1.40, 1.50, and 1.60). Indeed, as noted previously, a useful polymer-containing layer having a low refractive index value can include PMMA (n is about 1.45-1.49). For polymer-containing layers having a refractive index as low as 1.4 or even as low as about 1.3, fluorinated polymers (PTFE, PVDF, ETFE, PFA, FEP, amorphous fluoropolymers) can also be considered. Specialized surface treatments can be required for fluorinated polymers to achieve the desired level of adhesion.

[0173] Table 3 - Compositions for Glass-Containing Displays

[0174] Composition Mol % SiO2 58.65 Al2O3 17.85 P2O5 1.47 B2O3 4.22 MgO 1.19 Li2O 7.70 Na2O 8.72 K2O 0.07 TiO2 0.10 SnO2 0.04

[0175] As can be seen from FIG. 1 Figure 13A the screen protection film having the AR coating design of Example 1A achieves the lowest average photopic reflectance values when the refractive index of the peelable adhesive layer is from 1.3 to about 1.42, when the refractive indices of the polymer-containing layer and the OCA layer are 1.4 and 1.45, respectively. However, when the refractive index of the peelable adhesive layer is from about 1.42 to 1.5, it is preferred to employ a polymer-containing layer and an OCA layer having refractive indices of 1.50 and 1.50, respectively.

[0176] As can be seen from FIG. 2 Figure 13B the screen protection film having the AR coating design of Example 1B achieves the lowest average photopic reflectance values when the refractive index of the peelable adhesive layer is from 1.3 to about 1.42, when the refractive indices of the polymer-containing layer and the OCA layer are 1.4 and 1.45, respectively. However, when the refractive index of the peelable adhesive layer is from about 1.42 to 1.5, it is preferred to employ a polymer-containing layer and an OCA layer having refractive indices of 1.50 and 1.50, respectively.

[0177] In addition, and without being bound by theory, it is believed that, as described above in this example, Figure 13A and13B The modeling results presented in Example 1A and Example 1B using the AR screen protective films are also applicable to AR displays having glass displays, the compositions of which are shown in Tables 4-5 below. That is, it is believed that the optimized refractive index of the interlayer element, as described above in this example, is also applicable to AR displays having glass displays, the glass compositions of which are shown in Tables 4-5 below.

[0178] Table 4 - Composition of glass-containing displays

[0179] Composition Mol % SiO2 64.85 Al2O3 15.55 P2O5 0.86 B2O3 3.22 MgO 0.54 CaO 1.46 SrO 1.07 ZnO 0.00 Li2O 7.21 Na2O 4.78 K2O 0.21 TiO2 0.18 SnO2 0.04 Fe2O3 0.02 ZrO2 0.01 Li2O / Na2O 1.51

[0180] Table 5 shows suitable exemplary compositions containing compositional ranges for glass flakes associated with Tables 3 and 4.

[0181] Table 5 - Suitable substrate compositions

[0182] Composition Mol % SiO2 50.0-70.0 Al2O3 10.0-20.0 P2O5 0.0-2.0 B2O3 1.0-6.0 Li2O 5.0-10.0 Na2O 1.0-10.0 K2O 0.01-1.0

[0183] The above glass compositions (Tables 3-5) and at least the optical coating (Table 1D) are also described in U.S. Provisional Patent Application No. 63 / 430,186, entitled “Coated Glass Articles,” filed on December 5, 2022, and U.S. Provisional Patent Application No. 63 / 452,727, entitled “Coated Glass Articles,” filed on March 17, 2023, the important contents of which are hereby incorporated herein by reference.

[0184] Example 11

[0185] In this example, the optical property benefits of using a lower refractive index polymeric material (such as COP, cellulose triacetate or polyurethane) instead of PET or other relatively high refractive index polymeric materials for the AS film and interlayer of the screen protector of the present disclosure were evaluated. Glass 3 substrate with an AR coating on one major surface and an acrylic OCA layer and a PET or cyclic olefin (COP) layer (ZeonorFilm in this example) on the other major surface. TM Specifically, an OCA layer is placed in direct contact with the other major surface of the substrate, followed by a PET or COP layer, and then an OCA layer. Each OCA layer in each sandwich structure has the same material and is composed of a commercially available acrylic adhesive material.

[0186] In the contrast test of this example, a Samsung Galaxy S9 phone was used as the electronic device. Specifically, the phone was set to a series of display brightness values, and a test coupon was adhered directly to the display of the phone, and then the phone with the coupon was illuminated with 1000 lux. The test was conducted according to the contrast test method previously outlined in this disclosure.

[0187] In this example, the following test samples were evaluated: a bare Samsung Galaxy S9 phone without a test coupon (designated as “Comparative Example 14”); test coupons having the AR coating design of Example 1F (see Table 6 below) with PET or COP layers between the OCA layers (designated as “Example 14A1 (COP)” and “Example 14A2 (PET)”; and test coupons having the AR coating design of Example 1B (see Table IB above) with PET or COP layers between the OCA layers (designated as “Example 14B1 (COP)” and “Example 14B2 (PET)”). Referring now to FIG. 6, a plot of contrast ratio (CR) as a function of display brightness for the screen protection film samples of this example and the bare phone device control is provided. As can be seen from this plot, the screen protection film examples employing COP in the OCA layer sandwich structure (i.e., Examples 14A1 and 14B1 (COP)) exhibited higher contrast ratio at a given display brightness than the screen protection film samples employing PET in the OCA layer sandwich structure (i.e., Examples 14A2 and 14B2 (PET)). Figure 14

[0188] Table 6 - Example 1F, 10-layer AR coating

[0189] Layer Material Refractive index at 550 nm Thickness (nm) 1 SiO2 1.46-1.48 45 2 AlO x N y ]]> 1.95-2.00 39 3 SiO2 1.46-1.48 11 4 AlO x N y ]]> 1.95-2.00 2000 5 SiO2 1.46-1.48 9.53 6 AlO x N y ]]> 1.95-2.00 41.03 7 SiO2 1.46-1.48 30.97 8 AlO x N y ]]> 1.95-2.00 24.44 9 SiO2 1.46-1.48 52.79 10* AlO x N y ]]> 1.95-2.00 7.84

[0190] * 10th layer is the innermost layer of this AR coating, disposed above the substrate / display

[0191] The screen protection films described herein can be used with a variety of electronic devices, including but not limited to the exemplary electronic devices having glass displays with optical coatings described in the foregoing U.S. Provisional Patent Application Nos. 63 / 430,186 (filed December 5, 2022) and 63 / 452,727 (filed March 17, 2023), the important contents of which are hereby incorporated by reference herein.

[0192] In addition, various features described in the specification can be combined in any and all combinations, for example, those listed in the following embodiments.

[0193] ​Example 1. A screen protection film is provided that is configured to be releasably adhered to an optical coating disposed on a glass-containing display of an electronic device. The screen protection film includes a glass-containing substrate comprising an outer major surface and an inner major surface, wherein the inner major surface is opposite the outer major surface; an anti-reflective (AR) coating disposed on the outer major surface of the glass-containing substrate; and an intermediate layer disposed on the inner major surface of the glass-containing substrate. The intermediate layer is configured to be releasably adhered to an optical coating disposed on a glass-containing display of an electronic device. The intermediate layer comprises an adhesive and has a physical thickness of about 10 pm to 500 pm. The intermediate layer has one or more refractive indices, and each refractive index of the intermediate layer is about 1.2 to about 1.6. In addition, the average photopic reflectance of the screen protection film releasably adhered to the optical coating of the glass-containing display is less than 2% for all angles of incidence from 0° to 30°.

[0194] Example 2. A screen protection film according to Example 1 is provided, wherein each refractive index of the intermediate layer is within 30% of the refractive index of the glass-containing substrate or the refractive index of the optical coating.

[0195] Example 3. A screen protection film according to Example 1 or Example 2 is provided, wherein the adhesive of the intermediate layer is configured for releasable adhesion to the optical coating disposed on the glass-containing display, and wherein the adhesive exhibits a peel strength of 1 to 25 gf / 25 mm.

[0196] Example 4. A screen protection film according to any one of Examples 1 to 3 is provided, wherein the glass-containing substrate comprises a compressive stress region having a maximum compressive stress (CS) of at least 600 MPa and extending to a depth from the outer major surface.

[0197] Example 5. A screen protection film according to any one of Examples 1 to 4 is provided, wherein the average photopic reflectance of the screen protection film releasably adhered to the optical coating of the glass-containing display is less than 1.2% for all angles of incidence from 0° to 30°.

[0198] Embodiment 6. Provided is a screen protective film according to any one of embodiments 1 to 5, wherein the AR coating comprises a scratch-resistant layer having a physical thickness of about 75 nm to about 175 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch-resistant layer and each high RI layer comprise a silicon-containing nitride or oxynitride, and each low RI layer comprises a silicon-containing oxide, wherein the physical thickness of the AR coating is 250 nm to 450 nm, and wherein the screen protective film exhibits a hardness of 8 GPa or greater when the AR coating is measured by a Bosch indenter hardness test at an indentation depth of about 100 nm or greater.

[0199] Embodiment 7. Provided is a screen protective film according to any one of embodiments 1 to 5, wherein the AR coating comprises a scratch-resistant layer having a physical thickness of about 300 nm to about 3000 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch-resistant layer and each high RI layer comprise a silicon-containing nitride or oxynitride, and each low RI layer comprises a silicon-containing oxide, wherein the AR coating has a physical thickness of 750 nm to 3500 nm, and wherein the screen protective film exhibits a hardness of 12 GPa or greater when the AR coating is measured by a Bosch indenter hardness test at an indentation depth of about 100 nm or greater.

[0200] Embodiment 8. Provide the screen protective film according to any one of embodiments 1 to 7, further comprising an anti-shatter (AS) film disposed between the intermediate layer and the glass-containing substrate, wherein the AS film is in direct contact with the intermediate layer and the inner major surface of the glass-containing substrate.

[0201] Example 9. A screen protective film is provided, comprising: a glass-containing substrate comprising an outer major surface and an inner major surface, wherein the inner major surface is opposite to the outer major surface; an antireflective (AR) coating disposed on the outer major surface of the glass-containing substrate; and an intermediate layer disposed on the inner major surface of the glass-containing substrate. The intermediate layer comprises an optically clear adhesive (OCA) layer disposed on the inner major surface of the glass-containing substrate; a polymer-containing layer disposed on the OCA layer; and a peelable adhesive layer disposed on the polymer-containing layer. The total physical thickness of the OCA layer, the polymer-containing layer, and the peelable adhesive layer is about 10 μm to 500 μm. In addition, the OCA layer, the polymer-containing layer, and the peelable adhesive layer each have a refractive index of about 1.2 to about 1.6.

[0202] Embodiment 10 provides the screen protective film of embodiment 9, wherein the peelable adhesive layer exhibits a peel strength of 1 to 25 gf / 25 mm.

[0203] Embodiment 11 provides a screen protective film according to embodiment 9 or embodiment 10, wherein the releasable adhesive layer comprises silicone.

[0204] Embodiment 12 provides a screen protector according to any one of embodiments 9 to 11, wherein the OCA layer exhibits a peel strength greater than 500 gf / 25 mm.

[0205] Embodiment 13. Provide a screen protector according to any one of embodiments 9 to 12, wherein the polymer-containing layer is selected from the group consisting of polyethylene terephthalate (PET), polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), ethylene tetrafluoroethylene (ETFE), perfluoroalkoxyalkane (PFA), fluorinated ethylene propylene (FEP), amorphous fluoropolymers, cycloolefin polymers (COP), cellulose triacetate, polyurethane and polymethyl methacrylate (PMMA).

[0206] Embodiment 14 provides a screen protector according to any one of embodiments 9 to 12, wherein the polymer-containing layer is a cycloolefin polymer (COP).

[0207] Embodiment 15. Provide a screen protective film according to any one of embodiments 9 to 14, wherein the physical thickness of the OCA layer is about 1 μm to about 400 μm, the physical thickness of the polymer-containing layer is about 8 μm to about 200 μm, and the physical thickness of the releasable adhesive layer is about 1 μm to about 100 μm.

[0208] Embodiment 16 provides a screen protector according to any one of embodiments 9 to 15, wherein the glass-containing substrate comprises a compressive stress region having a maximum compressive stress (CS) of at least 600 MPa and extending to a depth from the outer major surface.

[0209] Embodiment 17. Provide a screen protector according to any one of embodiments 9 to 16, wherein when the screen protector is releasably attached to an optical coating disposed on a glass-containing display of an electronic device, the screen protector has an average photopic reflectance of less than 2% for all incident angles from 0° to 30°.

[0210] Embodiment 18. Provide a screen protector according to any one of embodiments 9 to 16, wherein when the screen protector is releasably attached to an optical coating disposed on a glass-containing display of an electronic device, the screen protector has an average photopic reflectance of less than 1.2% for all incident angles from 0° to 30°.

[0211] Example 19. There is provided a screen protection film according to any of Examples 9-18, wherein the AR coating comprises a scratch resistant layer having a physical thickness of about 75 nm to about 175 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch resistant layer and each high RI layer comprises a silicon nitride or oxynitride containing layer, and each low RI layer comprises a silicon oxide containing layer, wherein the AR coating has a physical thickness of 250 nm to 450 nm, and wherein the screen protection film exhibits a hardness of 8 GPa or greater when the AR coating is measured by the Pencil Hardness Test at an indentation depth of about 100 nm or greater.

[0212] Example 20. There is provided a screen protection film according to any of Examples 9-18, wherein the AR coating comprises a scratch resistant layer having a physical thickness of about 300 nm to about 3000 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch resistant layer and each high RI layer comprises a silicon nitride or oxynitride containing layer, and each low RI layer comprises a silicon oxide containing layer, wherein the AR coating has a physical thickness of 750 nm to 3500 nm, and wherein the screen protection film exhibits a hardness of 12 GPa or greater when the AR coating is measured by the Pencil Hardness Test at an indentation depth of about 100 nm or greater.

[0213] Example 21. There is provided a screen protection film according to any of Examples 9-20, wherein the peelable adhesive layer is configured to peelably adhere to an optical coating disposed on a glass-containing display of an electronic device.

[0214] Example 22. There is provided a screen protection film according to any of Examples 9-21, further comprising an anti-shatter (AS) film disposed between the intermediate layer and the glass-containing substrate, wherein the AS film is in direct contact with the interior major surfaces of the intermediate layer and the glass-containing substrate.

[0215] Example 23. A screen protection film is provided, comprising: a glass-containing substrate, an anti-reflective (AR) coating, an anti-shatter (AS) film, and an interlayer. The glass-containing layer comprises an outer major surface and an inner major surface. The inner major surface is opposite the outer major surface. The AR coating is disposed on the outer major surface of the glass-containing substrate. The AS film is disposed on the inner major surface of the glass-containing substrate. The AS film comprises a first optically clear adhesive (OCA) layer disposed on the inner major surface of the glass-containing substrate; and a first polymer-containing layer disposed on the first OCA layer. Additionally, the interlayer is disposed on the AS film and comprises a second OCA layer disposed on the first polymer-containing layer; a second polymer-containing layer disposed on the second OCA layer; and a peelable adhesive layer disposed on the second polymer-containing layer.

[0216] Example 24. The screen protection film of Example 23 is provided, wherein the peelable adhesive layer comprises silicone.

[0217] Example 25. The screen protection film of Example 23 or Example 24 is provided, wherein the first polymer-containing layer and the second polymer-containing layer are each selected from the group consisting of cyclic olefin polymer (COP), cellulose triacetate, and polyurethane.

[0218] Example 26. The screen protection film of any one of Examples 23-25 is provided, wherein the first OCA layer has a physical thickness of about 15 pm to about 50 pm, the second OCA layer has a physical thickness of about 50 pm to about 400 pm, the first polymer-containing layer and the second polymer-containing layer each have a physical thickness of about 12 pm to about 100 pm, and the peelable adhesive layer has a physical thickness of about 25 pm to about 100 pm.

[0219] Example 27. The screen protection film of any one of Examples 23-26 is provided, wherein the first polymer-containing layer and the second polymer-containing layer each have a refractive index of about 1.45 to about 1.55.

[0220] Example 28. There is provided a screen protection film according to any of Examples 23-27, wherein the AR coating comprises a scratch resistant layer having a physical thickness of about 75 nm to about 175 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch resistant layer and each high RI layer comprises a silicon nitride or oxynitride containing layer, and each low RI layer comprises a silicon oxide containing layer, wherein the AR coating has a physical thickness of 250 nm to 450 nm, and wherein the screen protection film exhibits a hardness of 8 GPa or greater when the AR coating is measured by the Pencil Hardness Test at an indentation depth of about 100 nm or greater. Additionally, the screen protection film exhibits a contrast ratio of at least 5 when the display brightness is 200 nits, and a contrast ratio of at least 10 when the display brightness is 400 nits.

[0221] Example 29. There is provided a screen protection film according to any of Examples 23-27, wherein the AR coating comprises a scratch resistant layer having a physical thickness of about 300 nm to about 3000 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch resistant layer and each high RI layer comprises a silicon nitride or oxynitride containing layer, and each low RI layer comprises a silicon oxide containing layer, wherein the AR coating has a physical thickness of 750 nm to 3500 nm, and wherein the screen protection film exhibits a hardness of 12 GPa or greater when the AR coating is measured by the Pencil Hardness Test at an indentation depth of about 100 nm or greater. Additionally, the screen protection film exhibits a contrast ratio of at least 5 when the display brightness is 200 nits, and a contrast ratio of at least 10 when the display brightness is 400 nits.

[0222] Example 30. There is provided a screen protection film according to any of Examples 23-29, wherein the total physical thickness of the intermediate layer is about 100 pm to 500 pm, and the total physical thickness of the AS film is about 50 pm to 150 pm, and additionally, wherein the first and second polymer containing layers, the first and second OCA layers, and the peelable adhesive layer each have a refractive index of about 1.2 to about 1.6.

[0223] Example 31. An article is provided, the article comprising: an electronic device comprising an anti-reflective (AR) coating disposed on a glass-containing display; and a screen protection film. The screen protection film comprises: a glass-containing substrate comprising an outer major surface and an inner major surface, wherein the inner major surface is opposite the outer major surface; an AR coating disposed on the outer major surface of the glass-containing substrate; and an intermediate layer disposed on the inner major surface of the glass-containing substrate. The intermediate layer comprises: an optically clear adhesive (OCA) layer disposed on the inner major surface of the glass-containing substrate; a polymer-containing layer disposed on the OCA layer; and a peelable adhesive layer disposed on the polymer-containing layer. The total thickness of the OCA layer, the polymer-containing layer, and the peelable adhesive layer is about 10 pm to 500 pm. Additionally, the OCA layer, the polymer-containing layer, and the peelable adhesive layer each have a refractive index of about 1.2 to about 1.6. Additionally, the glass-containing substrate comprises a compressive stress region having a maximum compressive stress (CS) of at least 600 MPa and extending to a depth from the outer major surface. Further, the peelable adhesive layer is configured to peelably adhere to the AR coating disposed on the glass-containing display of the electronic device.

[0224] Example 32. The article of Example 31 is provided, wherein the AR coating disposed on the glass-containing substrate of the screen protection film comprises a scratch resistant layer having a physical thickness of about 75 nm to about 175 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch resistant layer and each high RI layer comprises a silicon nitride- or oxynitride-containing layer, and each low RI layer comprises a silicon oxide-containing layer, wherein the physical thickness of the AR coating disposed on the glass-containing substrate of the screen protection film is 250 nm to 450 nm, and wherein the screen protection film exhibits a hardness of 8 GPa or greater when the AR coating disposed on the glass-containing substrate of the screen protection film is measured by the Pencil Hardness Test at an indentation depth of about 100 nm or greater.

[0225] Example 33. There is provided the article of any of Examples 32, wherein the AR coating disposed on the glass-containing display of the electronic device comprises a scratch resistant layer having a physical thickness of about 300 nm to about 3000 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch resistant layer and each high RI layer comprises a silicon nitride- or oxynitride- containing, and each low RI layer comprises a silicon oxide-containing, wherein the physical thickness of the AR coating disposed on the glass-containing display of the electronic device is 750 nm to 3500 nm, and wherein the electronic device exhibits a hardness of 12 GPa or greater when the AR coating disposed on the glass-containing display of the electronic device is measured by the Berkovich Indenter Hardness Test at an indentation depth of about 100 nm or greater.

[0226] Example 34. There is provided the article of any of Examples 31, wherein the AR coating disposed on the glass-containing substrate of the screen protection film comprises a scratch resistant layer having a physical thickness of about 300 nm to about 3000 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch resistant layer and each high RI layer comprises a silicon nitride- or oxynitride- containing, and each low RI layer comprises a silicon oxide-containing, wherein the physical thickness of the AR coating disposed on the glass-containing substrate of the screen protection film is 750 nm to 3500 nm, and wherein the screen protection film exhibits a hardness of 12 GPa or greater when the AR coating disposed on the glass-containing substrate of the screen protection film is measured by the Berkovich Indenter Hardness Test at an indentation depth of about 100 nm or greater.

[0227] Example 35. There is provided the article of any of Examples 32, wherein the AR coating disposed on the glass-containing display of the electronic device comprises a scratch resistant layer having a physical thickness of about 300 nm to about 3000 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch resistant layer and each high RI layer comprises a silicon nitride- or oxynitride- containing, and each low RI layer comprises a silicon oxide-containing, wherein the physical thickness of the AR coating disposed on the glass-containing display of the electronic device is 750 nm to 3500 nm, and wherein the electronic device exhibits a hardness of 12 GPa or greater when the AR coating disposed on the glass-containing display of the electronic device is measured by the Berkovich Indenter Hardness Test at an indentation depth of about 100 nm or greater.

[0228] Example 36. There is provided the article of any of Examples 31-35, wherein the peelable adhesive layer exhibits a peel strength of 1 to 25 gf / 25 mm.

[0229] Example 37. There is provided the article of any of Examples 31-36, wherein the strippable adhesive layer comprises silicone.

[0230] Example 38. There is provided the article of any of Examples 31-37, wherein the OCA layer exhibits a peel strength greater than 500 gf / 25 mm.

[0231] Example 39. There is provided the article of any of Examples 31-38, wherein the polymer-containing layer is selected from the group consisting of polyethylene terephthalate (PET), polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), ethylene tetrafluoroethylene (ETFE), perfluoroalkoxy alkane (PFA), fluorinated ethylene propylene (FEP), amorphous fluoropolymer, cyclic olefin polymer (COP), cellulose triacetate, polyurethane, and polymethyl methacrylate (PMMA).

[0232] Example 40. There is provided the article of any of Examples 31-39, wherein the polymer- containing layer is cyclic olefin polymer (COP).

[0233] Example 41. There is provided the article of any of Examples 31-40, wherein the physical thickness of the OCA layer is about 1 pm to about 400 pm, the physical thickness of the polymer- containing layer is about 8 pm to about 200 pm, and the physical thickness of the strippable adhesive layer is about 1 pm to about 100 pm.

[0234] Example 42. There is provided the article of any of Examples 31-41, wherein the average photopic reflectance of the article is less than 2% for all angles of incidence from 0° to 30°.

[0235] Example 43. There is provided the article of any of Examples 31-41, wherein the average photopic reflectance of the article is less than 1.2% for all angles of incidence from 0° to 30°.

[0236] Example 44. There is provided the screen protection film of any of Examples 31-43, further comprising an anti-shatter (AS) film disposed between the intermediate layer and the glass-containing substrate, wherein the AS film is in direct contact with the interior major surfaces of the intermediate layer and the glass-containing substrate.

Claims

1. A screen protective film configured to be releasably attached to an optical coating provided on a glass-containing display of an electronic device, the screen protective film comprising: a glass-containing substrate comprising an outer major surface and an inner major surface, wherein the inner major surface is opposite the outer major surface; an antireflective (AR) coating disposed on an outer major surface of the glass-containing substrate; and an intermediate layer disposed on the inner major surface of the glass-containing substrate, wherein the intermediate layer is configured to be releasably attached to the optical coating disposed on the glass-containing display of the electronic device, wherein the intermediate layer comprises an adhesive and has a physical thickness of about 10 μm to 500 μm, wherein the intermediate layer has one or more refractive indices, and each refractive index of the intermediate layer is from about 1.2 to about 1.6, and The screen protector film releasably attached to the optical coating of the glass-containing display has an average photopic reflectance of less than 2% for all incident angles from 0° to 30°. 2 . The screen protection film according to claim 1 , wherein each refractive index of the intermediate layer is within 30% of the refractive index of the glass-containing substrate or the refractive index of the optical coating.

3. The screen protective film of claim 1 or claim 2, wherein the adhesive of the intermediate layer is configured to releasably adhere to the optical coating disposed on the glass-containing display, and wherein the adhesive exhibits a peel strength of 1 to 25 gf / 25 mm.

4. The screen protection film according to any one of claims 1 to 3, wherein the glass-containing substrate comprises a compressive stress region having a maximum compressive stress (CS) of at least 600 MPa and extending to a depth from the outer major surface.

5. The screen protective film of any one of claims 1 to 4, wherein the screen protective film releasably attached to the optical coating of the glass-containing display has an average photopic reflectance of less than 1.2% for all angles of incidence from 0° to 30°.

6. The screen protective film according to any one of claims 1 to 5, wherein the AR coating comprises a scratch-resistant layer having a physical thickness of about 75 nm to about 175 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch-resistant layer and each high RI layer comprise a silicon-containing nitride or oxynitride, and each low RI layer comprises a silicon-containing oxide, wherein the AR coating has a physical thickness of 250 nm to 450 nm, and wherein the screen protective film exhibits a hardness of 8 GPa or greater when the AR coating is measured by a Berkovich Indenter Hardness Test at an indentation depth of about 100 nm or greater.

7. The screen protective film according to any one of claims 1 to 5, wherein the AR coating comprises a scratch-resistant layer having a physical thickness of about 300 nm to about 3000 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch-resistant layer and each high RI layer comprise a silicon-containing nitride or oxynitride, and each low RI layer comprises a silicon-containing oxide, wherein the AR coating has a physical thickness of 750 nm to 3500 nm, and wherein the screen protective film exhibits a hardness of 12 GPa or greater when the AR coating is measured by a Bosch indenter hardness test at an indentation depth of about 100 nm or greater.

8. The screen protective film according to any one of claims 1 to 7, further comprising: An anti-shatter (AS) film is disposed between the interlayer and the glass-containing substrate, the AS film being in direct contact with the interlayer and the inner major surfaces of the glass-containing substrate.

9. A screen protective film, comprising: a glass-containing substrate comprising an outer major surface and an inner major surface, wherein the inner major surface is opposite the outer major surface; an antireflective (AR) coating disposed on an outer major surface of the glass-containing substrate; and An interlayer disposed on the interior major surface of the glass-containing substrate, wherein the interlayer comprises: an optically clear adhesive (OCA) layer disposed on the interior major surface of the glass-containing substrate; a polymer-containing layer disposed on the OCA layer; and a releasable adhesive layer disposed on the polymer-containing layer, wherein the total physical thickness of the OCA layer, the polymer-containing layer and the peelable adhesive layer is about 10 μm to 500 μm, and wherein the polymer-containing layer, the OCA layer, and the releasable adhesive layer each have a refractive index of about 1.2 to about 1.

6. 10 . The screen protective film according to claim 9 , wherein the peelable adhesive layer exhibits a peel strength of 1 to 25 gf / 25 mm.

11. The screen protective film according to claim 9 or claim 10, wherein the releasable adhesive layer comprises silicone.

12. The screen protection film according to any one of claims 9 to 11, wherein the OCA layer exhibits a peel strength greater than 500 gf / 25 mm.

13. The screen protection film according to any one of claims 9 to 12, wherein the polymer-containing layer is selected from the group consisting of polyethylene terephthalate (PET), polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), ethylene tetrafluoroethylene (ETFE), perfluoroalkoxyalkane (PFA), fluorinated ethylene propylene (FEP), amorphous fluoropolymers, cycloolefin polymers (COP), cellulose triacetate, polyurethane, and polymethyl methacrylate (PMMA).

14. The screen protection film according to any one of claims 9 to 12, wherein the polymer-containing layer is a cycloolefin polymer (COP).

15. The screen protective film according to any one of claims 9 to 14, wherein the physical thickness of the OCA layer is about 1 μm to about 400 μm, the physical thickness of the polymer-containing layer is about 8 μm to about 200 μm, and the physical thickness of the releasable adhesive layer is about 1 μm to about 100 μm.

16. The screen protection film according to any one of claims 9 to 15, wherein the glass-containing substrate comprises a compressive stress region having a maximum compressive stress (CS) of at least 600 MPa and extending to a depth from the outer major surface.

17. The screen protector according to any one of claims 9 to 16, wherein when the screen protector is releasably attached to an optical coating disposed on a glass-containing display of an electronic device, the screen protector has an average photopic reflectance of less than 2% for all angles of incidence from 0° to 30°.

18. The screen protective film of any one of claims 9 to 16, wherein when the screen protective film is releasably attached to an optical coating disposed on a glass-containing display of an electronic device, the screen protective film has an average photopic reflectance of less than 1.2% for all angles of incidence from 0° to 30°.

19. The screen protection film according to any one of claims 9 to 18, wherein the AR coating comprises a scratch-resistant layer having a physical thickness of about 75 nm to about 175 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch-resistant layer and each high RI layer comprise a silicon-containing nitride or oxynitride, and each low RI layer comprises a silicon-containing oxide, wherein the AR coating has a physical thickness of 250 nm to 450 nm, and wherein the screen protection film exhibits a hardness of 8 GPa or greater when the AR coating is measured by a Bosch indenter hardness test at an indentation depth of about 100 nm or greater.

20. The screen protection film according to any one of claims 9 to 18, wherein the AR coating comprises a scratch-resistant layer having a physical thickness of about 300 nm to about 3000 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch-resistant layer and each high RI layer comprise a silicon-containing nitride or oxynitride, and each low RI layer comprises a silicon-containing oxide, wherein the AR coating has a physical thickness of 750 nm to 3500 nm, and wherein the screen protection film exhibits a hardness of 12 GPa or greater when the AR coating is measured by a Bosch indenter hardness test at an indentation depth of about 100 nm or greater.

21. The screen protective film of any one of claims 9 to 20, wherein the releasable adhesive layer is configured to releasably adhere to an optical coating disposed on a glass-containing display of an electronic device.

22. The screen protective film according to any one of claims 9 to 21, further comprising: An anti-shatter (AS) film is disposed between the interlayer and the glass-containing substrate, the AS film being in direct contact with the interlayer and the inner major surfaces of the glass-containing substrate.

23. A screen protective film, comprising: a glass-containing substrate comprising an outer major surface and an inner major surface, wherein the inner major surface is opposite the outer major surface; an antireflective (AR) coating disposed on the outer major surface of the glass-containing substrate; an anti-shatter (AS) film disposed on an interior major surface of the glass-containing substrate, wherein the AS film comprises: a first optically clear adhesive (OCA) layer disposed on the interior major surface of the glass-containing substrate; and a first polymer-containing layer disposed on the first OCA layer; and An intermediate layer is provided on the AS film, wherein the intermediate layer comprises: a second OCA layer disposed on the first polymer-containing layer; a second polymer-containing layer disposed on the second OCA layer; and A releasable adhesive layer is disposed on the second polymer-containing layer.

24. The screen protector of claim 23, wherein the releasable adhesive layer comprises silicone.

25. The screen protection film of claim 23 or claim 24, wherein the first polymer-containing layer and the second polymer-containing layer are each selected from the group consisting of cycloolefin polymer (COP), cellulose triacetate, and polyurethane.

26. The screen protection film according to any one of claims 23 to 25, wherein the physical thickness of the first OCA layer is about 15 μm to about 50 μm, the physical thickness of the second OCA layer is about 50 μm to about 400 μm, the physical thickness of each of the first polymer-containing layer and the second polymer-containing layer is about 12 μm to about 100 μm, and the physical thickness of the releasable adhesive layer is about 25 μm to about 100 μm.

27. The screen protection film of any one of claims 23 to 26, wherein the first polymer-containing layer and the second polymer-containing layer each have a refractive index of about 1.45 to about 1.

55.

28. The screen protection film of any one of claims 23 to 27, wherein the AR coating comprises a scratch-resistant layer having a physical thickness of about 75 nm to about 175 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch-resistant layer and each high RI layer comprise a silicon-containing nitride or oxynitride, and each low RI layer comprises a silicon-containing oxide, wherein the AR coating has a physical thickness of 250 nm to 450 nm, and wherein the screen protection film exhibits a hardness of 8 GPa or greater when the AR coating is measured by a Bosch indenter hardness test at an indentation depth of about 100 nm or greater, and In addition, the screen protective film exhibits a contrast ratio of at least 5 when the display brightness is 200 nits, and exhibits a contrast ratio of at least 10 when the display brightness is 400 nits.

29. The screen protection film of any one of claims 23 to 27, wherein the AR coating comprises a scratch-resistant layer having a physical thickness of about 300 nm to about 3000 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch-resistant layer and each high RI layer comprise a silicon-containing nitride or oxynitride, and each low RI layer comprises a silicon-containing oxide, wherein the AR coating has a physical thickness of 750 nm to 3500 nm, and wherein the screen protection film exhibits a hardness of 12 GPa or greater when the AR coating is measured by a Bosch indenter hardness test at an indentation depth of about 100 nm or greater, and In addition, the screen protective film exhibits a contrast ratio of at least 5 when the display brightness is 200 nits, and exhibits a contrast ratio of at least 10 when the display brightness is 400 nits.

30. The screen protection film according to any one of claims 23 to 29, wherein the total physical thickness of the intermediate layer is about 100 μm to 500 μm, and the total physical thickness of the AS film is about 50 μm to 150 μm, and further, wherein the first and second polymer-containing layers, the first and second OCA layers, and the peelable adhesive layer each have a refractive index of about 1.2 to about 1.

6.

31. An article comprising: An electronic device comprising an anti-reflective (AR) coating disposed on a glass-containing display; and A screen protective film, wherein the screen protective film comprises: a glass-containing substrate comprising an outer major surface and an inner major surface, wherein the inner major surface is opposite the outer major surface; an AR coating disposed on the outer major surface of the glass-containing substrate; and An interlayer disposed on the interior major surface of the glass-containing substrate, wherein the interlayer comprises: an optically clear adhesive (OCA) layer disposed on the interior major surface of the glass-containing substrate; a polymer-containing layer disposed on the OCA layer; and a releasable adhesive layer disposed on the polymer-containing layer, wherein the total physical thickness of the OCA layer, the polymer-containing layer and the peelable adhesive layer is about 10 μm to 500 μm, wherein the polymer-containing layer, the OCA layer, and the peelable adhesive layer each have a refractive index of about 1.2 to about 1.6, wherein the glass-containing substrate comprises a compressive stress region having a maximum compressive stress (CS) of at least 600 MPa and extending to a depth from the outer major surface, and The releasable adhesive layer is configured to be releasably attached to the AR coating disposed on the glass-containing display of the electronic device.

32. The article of claim 31 , wherein the AR coating disposed on the glass-containing substrate of the screen protector comprises a scratch-resistant layer having a physical thickness of about 75 nm to about 175 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch-resistant layer and each high RI layer comprise a silicon-containing nitride or oxynitride, and each low RI layer comprises a silicon-containing oxide, wherein the physical thickness of the AR coating disposed on the glass-containing substrate of the screen protector is 250 nm to 450 nm, and wherein the screen protector exhibits a hardness of 8 GPa or greater when the AR coating disposed on the glass-containing substrate of the screen protector is measured at an indentation depth of about 100 nm or greater by a Bosch Indenter Hardness Test.

33. The article of claim 31 , wherein the AR coating disposed on the glass-containing display of the electronic device comprises a scratch-resistant layer having a physical thickness of about 300 nm to about 3000 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch-resistant layer and each high RI layer comprise a silicon-containing nitride or oxynitride, and each low RI layer comprises a silicon-containing oxide, wherein the physical thickness of the AR coating disposed on the glass-containing display of the electronic device is 750 nm to 3500 nm, and wherein the electronic device exhibits a hardness of 12 GPa or greater when the AR coating disposed on the glass-containing display of the electronic device is measured at an indentation depth of about 100 nm or greater by a Bosch Indenter Hardness Test.

34. The article of claim 31 , wherein the AR coating disposed on the glass-containing substrate of the screen protector comprises a scratch-resistant layer having a physical thickness of about 300 nm to about 3000 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch-resistant layer and each high RI layer comprise a silicon-containing nitride or oxynitride, and each low RI layer comprises a silicon-containing oxide, wherein the physical thickness of the AR coating disposed on the glass-containing substrate of the screen protector is 750 nm to 3500 nm, and wherein the screen protector exhibits a hardness of 12 GPa or greater when the AR coating disposed on the glass-containing substrate of the screen protector is measured by a Bosch Indenter Hardness Test at an indentation depth of about 100 nm or greater.

35. The article of claim 31 , wherein the AR coating disposed on the glass-containing display of the electronic device comprises a scratch-resistant layer having a physical thickness of about 300 nm to about 3000 nm, at least one high refractive index (RI) layer, and at least one low refractive index (RI) layer, wherein the scratch-resistant layer and each high RI layer comprise a silicon-containing nitride or oxynitride, and each low RI layer comprises a silicon-containing oxide, wherein the physical thickness of the AR coating disposed on the glass-containing display of the electronic device is 750 nm to 3500 nm, and wherein the electronic device exhibits a hardness of 12 GPa or greater when the AR coating disposed on the glass-containing display of the electronic device is measured at an indentation depth of about 100 nm or greater by a Bosch Indenter Hardness Test.

36. The article of any one of claims 31 to 35, wherein the peelable adhesive layer exhibits a peel strength of 1 to 25 gf / 25 mm.

37. The article of any one of claims 31 to 36, wherein the releasable adhesive layer comprises silicone.

38. The article of any one of claims 31 to 37, wherein the OCA layer exhibits a peel strength greater than 500 gf / 25 mm.

39. The article of any one of claims 31 to 38, wherein the polymer-containing layer is selected from the group consisting of polyethylene terephthalate (PET), polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), ethylene tetrafluoroethylene (ETFE), perfluoroalkoxyalkanes (PFA), fluorinated ethylene propylene (FEP), amorphous fluoropolymers, cyclic olefin polymers (COP), cellulose triacetate, polyurethane, and polymethyl methacrylate (PMMA).

40. The article of any one of claims 31 to 39, wherein the polymer-containing layer is a cycloolefin polymer (COP).

41. The article of any one of claims 31 to 40, wherein the physical thickness of the OCA layer is from about 1 μm to about 400 μm, the physical thickness of the polymer-containing layer is from about 8 μm to about 200 μm, and the physical thickness of the peelable adhesive layer is from about 1 μm to about 100 μm.

42. The article of any one of claims 31 to 41, wherein the article has an average photopic reflectance of less than 2% for all angles of incidence from 0° to 30°.

43. The article of any one of claims 31 to 41, wherein the article has an average photopic reflectance of less than 1.2% for all angles of incidence from 0° to 30°.

44. The article of any one of claims 31 to 43, further comprising: An anti-shatter (AS) film is disposed between the interlayer and the glass-containing substrate, the AS film being in direct contact with the interlayer and the inner major surfaces of the glass-containing substrate.

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