Abstract: A reflective optical film includes a reflective light-polarizing unit including a multilayer reflective sheet composed of a plurality of polymer films stacked on top of one another. Each polymer film has a thickness, every two adjacent polymer films are two different materials, and the thicknesses of the polymer films are gradually decreased from two outmost sides of the multilayer reflective sheet to a middle of the multilayer reflective sheet. At least one of the polymer films is a birefringence material layer that conforms to the condition of NX?NY?NZ, where NX is the index of refraction of light at X direction of the multilayer reflective sheet, NY is the index of refraction of light at Y direction of the multilayer reflective sheet, and NZ is the index of refraction of light at Z direction of the multilayer reflective sheet.

Abstract: A dielectric mirror includes a coating having alternating high and low index layers. The mirror coating has no metallic reflective layer of Al or Ag in certain example embodiments, and may have film side and/or glass side visible reflection of from about 50-90% (more preferably from about 60-80% and most preferably from about 65-75%) and visible transmission of from about 10-50% (more preferably from about 10-40% or 20-40%) in certain example embodiments.

Abstract: A method, composition and system respond to ionizing radiation to adjust biological activity. In some approaches the ionizing radiation is X-ray or extreme ultraviolet radiation that produces luminescent responses that induce biologically active responses.

Abstract: A multi-layered optical film formed on a plastic substrate, which has high resistance against lights in the ultraviolet region including blue lasers in a high ambient temperature is disclosed. Each layer of the multi-layered optical film is made of an oxide or an oxynitride, layers adjacent to each other are made of materials having different refractive indexes, oxidation-reduction potential of elements constituting oxides or oxynitrides is ?0.9 volts or less, thickness of a first layer adjacent to the substrate is 10 nanometers or more, an absolute value of a difference in refractive index between a material of the substrate and a material of the first layer is 0.2 or less, an absolute value of a difference in refractive index between two kinds of materials of layers adjacent to each other is 0.45 or less and total thickness of the multi-layered optical film is 3000 nanometers or less.

Abstract: A semiconductor device includes a substrate including a pixel region incorporating a photodiode, a grid disposed over the substrate and having walls defining a cavity vertically aligned with the pixel region, and a color filter material disposed in the cavity between the walls of the grid.

Abstract: A touchscreen sensor includes a transparent base material, a first index-matching layer, a first transparent electrode pattern, a second index-matching layer and a first adhesive layer disposed in this order at one side of the transparent base material, and a third index-matching layer, a second transparent electrode pattern, a fourth index-matching layer and a second adhesive layer disposed in this order at another side of the transparent base material. Each of the first, second, third and fourth index-matching layers has a refractive index of 1.6 to 1.8 and a thickness of 50 nm to 150 nm.

Abstract: An image sensor includes an inorganic color filter, an organic color filter, and a metal pattern. The inorganic color filter is on a support substrate. The organic color filter is on the support substrate. The organic color filter is spaced apart from the inorganic color filter. The metal pattern is between the inorganic color filter and the organic color filter.

Abstract: Provided are a metal-based particle assembly comprising 30 or more metal-based particles separated from each other and disposed in two dimensions, the metal-based particles having an average particle diameter of 200 to 1600 nm, an average height of 55 to 500 nm, and an aspect ratio, as defined by a ratio of the average particle diameter to the average height, of 1 to 8, the metal-based particle assembly having a scattering intensity ratio S1/S0 of not less than 0.15, S1 representing a scattering intensity at a maximum wavelength of a peak having a highest peak intensity in a scattering spectrum of light scattered at an angle of 30° from light incident on a surface of the metal-based particle assembly along a normal to the surface, S0 representing a scattering intensity of the peak for a reference system made of a barium sulfate layer, and an optical device including the assembly.

Abstract: An optical member has: a transparent substrate; and a dielectric multilayer on the transparent substrate formed by stacking a plurality of unit refractive index layers each formed of a high-refractive index layer having a refractive index of 2 or more and a low-refractive index layer having a refractive index of 1.6 or less. In the optical member, a total number of the unit refractive index layers is 15 or more, and a number of the unit refractive index layers satisfying a condition of nHdH/nLdL?3 is 10 or more, nHdH represents an optical thickness of the high-refractive index layer, and nLdL represents an optical thickness of the low-refractive index layer.

Abstract: A mirror with a dielectric coating (2) on a substrate (3), wherein the dielectric coating (2) has exactly two layer stacks (4, 5), a first layer stack (4), on the substrate, of layers (41, 42) of high refractive index and low refractive index oxides in alternating arrangement and a second layer stack (5), arranged thereon, of layers of fluorides (52) and oxides (51) in alternating arrangement, and wherein the number of fluoride layers (52) as a proportion of the total number of layers of the dielectric coating (2) is less than 0.45.

Abstract: An optical layered body that can reduce the occurrence of curling and has excellent workability when being affixed to a polarizing element or a display panel is provided. In particular is provided an optical layered body having a hard coat layer on one side of a triacetylcellulose substrate, wherein a Martens hardness (N1) of the surface of the hard coat layer, a Martens hardness (N2) of the center of the cross-section of the hard coat layer, and a Martens hardness (N3) of the center of the cross-section of a triacetylcellulose substrate as measured by nanoindentation at a load of 10 mN are as follows: the Martens hardness (N1) is 200 to 450 N/mm2; the Martens hardness (N2) is 100 to 300 N/mm2; and the Martens hardness (N3) is 150 to 250 N/mm2.

Abstract: The present invention aims to provide an antiglare film that can be thinned without lowering the hard coat properties and antiglare properties, highly suppress scintillation and white muddiness, and provide display images with a high contrast. The antiglare film includes a light-transmitting substrate and an antiglare layer with surface roughness on one face of the light-transmitting substrate, wherein the antiglare layer contains silica fine particles, organic fine particles, and a binder resin, part of the silica fine particles form agglomerates and the agglomerates are contained in the antiglare layer sparsely and densely, the agglomerates of the silica fine particles are densely distributed around the organic fine particles, and part of the agglomerates densely distributed around the organic fine particles are attached to the surface of the organic fine particles and/or have some of the silica fine particles contained in the agglomerates impregnate the inside of the organic fine particles.

Abstract: A anti-reflection coating comprising first to ninth layers laminated in this order on a substrate for having reflectance of 0.2% or less to light in a visible wavelength range of 390-720 nm, the second, fourth, sixth and eighth layers being high-refractive-index layers formed by high-refractive-index materials having refractive indices of 2.21-2.70 to a helium d-line having a wavelength of 587.56 nm; the first, third, fifth and seventh layers being intermediate-refractive-index layers formed by an intermediate-refractive-index material having a refractive index of 1.40 or more and less than 1.55 to the d-line; and the ninth layer being a low-refractive-index layer formed by a low-refractive-index material having a refractive index of 1.35 or more and less than 1.40 to the d-line.

Abstract: A film construction (610) includes a group of microlayers that reflect normally incident light polarized along a first axis more than normally incident light polarized along a second axis. The microlayers are arranged into optical repeat units (ORUs) that have a layer thickness distribution along a thickness axis perpendicular to the first and second axes that provides the group of microlayers with an intermediate reflectivity over an extended reflection band for a given incidence condition. The ORUs include thinner ORUs whose thicknesses are less than an average thickness, and thicker ORUs whose thicknesses are greater than the average thickness. The group of microlayers is optically immersed in a medium having a refractive index greater than air, such that “supercritical light” can propagate through the microlayers. The microlayers are oriented such that, on average, the thinner ORUs are closer than the thicker ORUs to an output surface of the construction.

Abstract: An optical element includes an optical member made of a material that transmits light; a high refractive index layer and a low refractive index layer that are stacked on a front surface of the optical member; and a surface protection layer that is formed on an upper most layer among the high refractive index layer and the low refractive index layer, the surface protection layer being made of a material including one of a mixed oxide of Si and Sn, a mixed oxide of Si and Zr, and a mixed oxide of Si and Al, and the refraction index of the surface protection layer being less than or equal to the refraction index of the high refractive index layer and greater than or equal to the refraction index of the low refractive index layer.

Abstract: An optical component includes an optical substrate and a first band-pass filter disposed on the optical substrate. The first band-pass filter includes a high refractive index layer having a first refractive index, and a low refractive index layer having a second refractive index lower than the first refractive index. The high refractive index layer and the low refractive index layer are layered. An expression (nL×dL)/(nH×dH)?0.50 (1) is fulfilled, wherein the first refractive index is nH, the second refractive index is nL, the high refractive index layer has a physical film thickness of dH, and the low refractive index layer has a physical film thickness of dL.

Abstract: An optical element has layers formed on a substrate, including alternating first and second layers having first and second refractive indices, nL and nH that exhibit a spectral characteristic, providing, for incident light at a predetermined wavelength and directed toward the optical element within a range of angles bounded by first and second incident angles ?1 and ?2, between 0 and 80 degrees and differing by at least 1 degree, substantially linear polarization-averaged attenuation of the incident light energy wherein, for any incident angle ?n between ?1 and ?2, A?n is the corresponding polarization-averaged attenuation, and wherein the polarization-averaged attenuation at A?n at angle ?1 is less than or equal to an optical density value of 0.2 and the polarization-averaged attenuation A?n at angle ?2 exceeds an optical density value of 4.

Abstract: An optical film includes: a high refractive index pattern layer including a material having a refractive index greater than about 1, where a plurality of grooves, each having a curved groove surface and a depth greater than a width thereof, is defined on a first surface of the high refractive index pattern layer, the plurality of grooves defines a pattern, the plurality of grooves are two-dimensionally arranged in a first direction and a second direction, and a first distance between adjacent grooves in the first direction and a second distance between adjacent grooves in the second direction are different from each other; and a low refractive index pattern layer including a material having a refractive index less than the refractive index of the high refractive index pattern layer and further including a plurality of fillers which fills the plurality of grooves, respectively.

Abstract: An optical film includes a high refractive index pattern layer including a material having a refractive index greater than about 1, wherein a groove pattern defined by grooves, each of which has a curved groove surface and a depth greater than a width, is defined on a first surface of the high refractive index pattern, the grooves are two-dimensionally arranged in a first direction and a second direction, and a cross-sectional shape of each of the grooves has an anisotropic shape, in which a length in a first axial direction and a length in a second axial direction, which is perpendicular to the first axial direction, are different from each other, and a low refractive index pattern layer including a material having a refractive less than the refractive index of the high refractive index pattern layer and further including fillers corresponding to the grooves.

Abstract: The present invention relates to a security element (12) for protecting valuable articles, having a thin-film element (30) that has a color-shift effect and that includes an absorber layer (36) having gaps (38) in the region of which no color-shift effect is perceptible, and a relief pattern (26) that is arranged only in gapped absorber layer regions (38) below the thin-film element (30).

Abstract: A Fabry-Perot interferometer includes an input mirror and an output mirror arranged facing the input mirror via a gap. Each mirror includes a pair of high-refractive layers and a space layer arranged selectively between the high-refractive layers. At least one of an input-side bridge part and an output-side bridge part arranged crossing the gap, is movable as a membrane. Each bridge part includes a transmission portion and a periphery portion. Each transmission portions includes a mirror element in which the space layer is sandwiched by the pair of high-refractive layers. In a second direction perpendicular to the first direction, the mirror element of the input mirror has a width larger than seven times of a maximum wavelength of a transmission light output from the output mirror, and functions as a diffraction restriction mirror.

Abstract: The present invention has its object to provide an optical layered body having sufficient hardness and an even surface, including a low refractive index layer having a sufficiently low refractive index, and having excellent antireflection properties. optical layered body of the present invention comprises: at least a low refractive index layer on a light-transmitting substrate, wherein said low refractive index layer is formed by using a composition for a low refractive index layer, said composition comprising a hollow silica fine particle and an organic binder, said organic binder containing: a fluorine atom-free polyfunctional monomer having three or more reactive functional groups in one molecule; a fluorine atom-containing monomer; and a fluorine atom-containing polymer.

Abstract: The present disclosure relates to thin film optical interference filters. The filters include a substrate and a plurality of alternating material layers deposited on the substrate. When operated at about 45° angle of incidence, the filters exhibit at least one of improved polarization splitting, edge steepness, bandpass bandwidth, and blocking, relative to conventional thin film interference filters.

Abstract: This disclosure is directed to an improved process for making glass articles having optical coating and easy-to clean coating thereon, an apparatus for the process and a product made using the process. In particular, the disclosure is directed to a process in which the application of the optical coating and the easy-to-clean coating can be sequentially applied using a single apparatus. Using the combination of the coating apparatus and the substrate carrier described herein results in a glass article having both optical and easy-to-clean coating that have improved scratch resistance durability and optical performance, and in addition the resulting articles are “shadow free.

Abstract: According to one embodiment, a mirror includes a plurality of dielectric layers stacked in a first direction. A thickness along the first direction of each of the dielectric layers is half a design wavelength. The dielectric layers include a first dielectric layer. The first dielectric layer includes a first portion with a thickness being ? of the design wavelength, a second portion stacked with the first portion with a thickness being ? of the design wavelength, and a third portion provided between the first and second portions with a thickness being ¼ of the design wavelength. The second portion has a refractive index lower than that of the first portion. The third portion has a refractive index gradually decreasing from a side of the first portion toward a side of the second portion.

Abstract: Methods and articles are provide for: a substrate having first and second opposing surfaces; an intermediate layer substantially covering the first surface of the substrate, the intermediate layer being between about 1-5 microns in thickness and having a hardness of at least 15 GPa; a first outer layer substantially covering the intermediate layer; and a second outer layer substantially covering the first outer layer, and having a hardness of at least 15 GPa.

Abstract: Devices are described including a component comprising an alloy of AlN and AlSb. The component has an index of refraction substantially the same as that of a semiconductor in the optoelectronic device, and has high transparency at wavelengths of light used in the optoelectronic device. The component is in contact with the semiconductor in the optoelectronic device. The alloy comprises between 0% and 100% AlN by weight and between 0% and 100% AlSb by weight. The semiconductor can be a III-V semiconductor such as GaAs or AlGaInP. The component can be used as a transparent insulator. The alloy can also be doped to form either a p-type conductor or an n-type conductor, and the component can be used as a transparent conductor. Methods of making and devices utilizing the alloy are also disclosed.

Abstract: The present invention relates to a man-made composite material and a man-made composite material antenna. The man-made composite material is divided into a plurality of regions. An electromagnetic wave is incident on a first surface exits from a second surface of the man-made composite material opposite to the first surface. A line connecting a radiation source to a point on the bottom surface of the ith region and a line perpendicular to the man-made composite material form an angle ? therebetween, which uniquely corresponds to a curved surface in the ith region. A set formed by points on the bottom surface of the ith region that have the same angle ? forms a boundary of the curved surface to which the angle ? uniquely corresponds. The refraction, diffraction and reflection of the present invention at the abrupt transition points can be reduced.

Abstract: An optical substrate such as a cover glass which effects only a small change in a reflected color dependent on an incident angle, or more particularly, an optical substrate such as a cover glass for displays includes a reinforcement layer intended to prevent cracking, an antiglare layer formed on the reinforcement layer, a tone-adjustment antireflection film formed on the antiglare layer, and an antifouling layer formed on the antireflection film intended to minimize fingerprint adhesion. The antireflection film includes at least nine layers.

Abstract: An antireflection film includes a first layer and a second layer formed on a substrate in this order from the substrate side, the second layer being formed to be in contact with an ambient medium. The first layer and the second layer are formed such that an average refractive index n1 of the first layer at a given wavelength ?0, an average refractive index n2 of the second layer at the given wavelength ?0, a film thickness d1 of the first layer, and a film thickness d2 of the second layer satisfy conditional expressions below: 0.96<n1/(n0×n0×n3)1/3<1.04, 0.96<n2/(n0×n3×n3)1/3<1.04, 0.8<d1×n1/(?0/6)<1.2, and 0.8<d2×n2/(?0/6)<1.2, where n0 is a refractive index of the substrate at the given wavelength ?0, and n3 is a refractive index of the ambient medium at the given wavelength ?0.

Abstract: An optical filter 13 is provided with a quartz plate 2 and a filter group 3. The filter group 3 is constituted by combining a first filter 33 having transmission characteristics in the visible region and one preset band of the infrared region that is contiguous with the visible region, and a second filter 35 and a third filter 36 each having transmission characteristics in the visible region and another preset band of the infrared region that is removed from the visible region and having blocking characteristics in a band between the visible region and the other band of the infrared region. In the second filter 35 and the third filter 36, each of the bands in which blocking characteristics are obtained is approximately 150 nm or less, and the bands in which blocking characteristics are obtained overlap.

Abstract: A tunable photonic crystal device comprising: alternating layers of a first material and a second material, the alternating layers comprising a responsive material, the responsive material being responsive to an external stimulus, the alternating layers having a periodic difference in refractive indices giving rise to a first reflected wavelength; wherein, in response to the external stimulus, a change in the responsive material results in a reflected wavelength of the device shifting from the first reflected wavelength to a second reflected wavelength.

Abstract: A multi-layer photonic structure may include alternating layers of high index material and low index material having a form [H(LH)N] where, H is a layer of high index material, L is a layer of low index material and N is a number of pairs of layers of high index material and layers of low index material. N may be an integer ?1. The low index dielectric material may have an index of refraction nL from about 1.3 to about 2.5. The high index dielectric material may have an index of refraction nH from about 1.8 to about 3.5, wherein nH>nL and the multi-layer photonic structure comprises a reflectivity band of greater than about 200 nm for light having angles of incidence from about 0 degrees to about 80 degrees relative to the multi-layer photonic structure. The multi-layer photonic structure may be incorporated into a paint or coating system thereby forming an omni-directional reflective paint or coating.

Abstract: Various embodiments include an interferometric modulator device configured to provide improved saturation. In some embodiments, saturation is improved by optically matching the impedance of two materials with different refractive indices using a multilayer having a refractive index gradient. In various embodiments, the thickness one or more of the layers in the multilayer are selected to provide increased saturation. Accordingly, in various embodiments the multilayer having a refractive index gradient helps to narrow the resonance of a pixel such that the band of wavelengths that are reflected from the pixel is smaller. In turn, a device including a combination of red, green and blue pixels may expand the spectrum of colors that are reflected by the device in operation. Additionally, there may be better contrast between whites and blacks, as darker blacks with less hue are produced.

Abstract: The invention relates to a transparent or semi-transparent substrate having, over at least a portion of at least one of its surfaces, a photocatalytic coating based on titanium oxide and characterized in that the coated surface has a luminous reflectance less than that of a non-coated surface of the substrate. The invention also relates to methods for obtaining a substrate of this type and to uses for this substrate.

Abstract: Films for optical use, articles containing such films, methods for making such films, and systems that utilize such films, are disclosed.

Abstract: A method of forming a non-polarizing pellicle beamsplitter having a desired power-tap ratio. The method includes the operation of forming a base layer having a base refractive index on a substrate and arranging a plurality of alternating layers having relatively high and low indexes of refraction respectively over the base layer. The thickness of each of the high index and low index layers is selected to substantially eliminate polarization of the optical beam. The method further includes the operation of removing a selected area of the substrate to create an optical pathway comprised of both the base layer and the plurality of alternating layers, and where the optical pathway is configured to transmit and reflect a selected amount of light in the optical beam.

Abstract: An optical element includes a transparent substrate and an antireflection coating on the substrate. The antireflection coating includes an intermediate layer on the substrate, and an undulation layer that is formed on the intermediate layer and has a plurality of convexes arrayed with spacing shorter than a shortest wavelength. The undulation layer has a portion where refractive index increases from a light incident side to the substrate. The intermediate layer has a first layer closest to the substrate, and a second layer formed on the first layer. A refractive index n1 of the first layer, a refractive index n2 of the second layer, and a refractive index ns of the substrate satisfy the following conditional equations: 1.75?ns?2.20; n1<n2; and n1<ns.

Abstract: An antireflection film has excellent scratch resistance and damp-proof property in addition to having a high degree of antireflective effect, and provides an antireflection plate obtained by laminating the above film. The antireflection film has a lowly refractive layer of a refractive index of less than 1.48 and a thickness of 50 to 200 nm. An antireflection plate includes the antireflection film formed on a transparent resin substrate.

Abstract: An optically variable element, in particular a security element, has a transparent carrier layer, an at least partly transparent reflective layer formed on the carrier layer, and a transparent embedding layer formed on the reflective layer. The reflective layer is structured in a motif region such that the layer forms a multiplicity of partly transparent micromirrors which present a perceptible motif upon plan viewing of the motif region due to specular reflection of incident light. The refractive indices of the carrier and embedding layers differ in the visible spectrum by no more than 0.2 in order that the motif perceptible in plan view is not recognizable upon transmission viewing of the motif region.

Abstract: A substrate element for coating with an easy-to-clean coating, the effect of the easy-to-clean coating being improved by the substrate element in terms of its hydrophobic and oleophobic properties and also, more particularly, its long-term stability. The substrate element comprises in particular a support material of glass or glass-ceramic and an antireflection coating, consisting of one layer or of at least two layers, the one layer or the topmost layer of the at least two layers being an adhesion promoter layer which is able to interact with an easy-to-clean coating and comprises a mixed oxide, more particularly a silicon mixed oxide.

Abstract: An omnidirectional reflector that reflects a band of electromagnetic radiation of less than 100 nanometers when viewed from angles between 0 and 45 degrees is provided. The omnidirectional reflector includes a multilayer stack having a plurality of layers of high index of refraction material and a plurality of layers of low index of refraction material. In addition, the plurality of high index of refraction material layers and low index of refraction material layers are alternately stacked on top of or across each other and provide a non-periodic layered structure.

Abstract: An optical filter includes a substrate and a filter film attached on the substrate. The filter film has alternate layers of high reflective layers and low reflective layers to form a plurality of Fabry-Perot resonators. A basic optical thickness of the high reflective layers and the low reflective layers is one fourth a central wavelength (?0/4) of incident ray, and each of the Fabry-Perot resonators has two high reflector films and a spacer between the high reflector films. The spacers in the Fabry-Perot resonator, which is most proximal to the substrate, and in the Fabry-Perot resonator, which is most distal to the substrate, have an optical thickness respectively in a range between four times the basic optical thickness and fourteen times the basic optical thickness.

Abstract: An optical device is provided. The optical device comprises a substrate having a coating region and a non-coating region. A first film is on the coating region, wherein the first film has a band edge structure extending to a portion of the non-coating region with an angle between a surface of the band edge structure and a surface of the first film to diminish the attenuation of an incident light beam.

Abstract: An apparatus includes a pulsed laser source that produces a pulsed laser beam at an input repetition rate and an input pulse power; a passive pulse splitter that receives the pulsed laser beam and outputs a signal including a plurality of sub-pulses for each input pulse of the pulsed laser beam, where the sub-pulses have a repetition rate that is greater than the input repetition rate and at least two of the sub-pulses have power less than the input pulse power; a sample accommodating structure configured to accommodate a sample placed in the path of a sample beam that is formed from the beam that exits the pulse splitter; and a detector that receives a signal of interest emitted from a sample accommodated by the sample accommodating structure based on the incident sample beam.

Abstract: An optical article comprising a substrate and on at least one face of the substrate a multilayered antireflecting coating functioning in an interferential manner having antifog properties, said antireflecting coating including a last layer with a refractive index n?1.55 and a physical thickness of 120 nm or less directly deposited on a high refractive index layer (HI layer) having a refractive index n>1.55, and a thickness of less than 500 nm.

Abstract: An antireflection film includes, in a following order, a transparent substrate film; a medium refractive index layer; a high refractive index layer; and a low refractive index layer, wherein the medium refractive index layer is (A) a medium refractive index layer having a refractive index of 1.60 to 1.64 at a wavelength of 550 nm and a thickness of 55.0 to 65.0 nm, the high refractive index layer is (B) a high refractive index layer having a refractive index of 1.70 to 1.74 at a wavelength of 550 nm and a thickness of 105.0 to 115.0 nm, and the low refractive index layer is (C) a low refractive index layer having a refractive index of 1.32 to 1.37 at a wavelength of 550 nm and a thickness of 85.0 to 95.0 nm.

Abstract: An antireflection film capable of reliably preventing light (or laser light), which is incident on a glass substrate and which reaches a metal film, from being reflected by the metal film. The antireflection film provided between a metal film having a complex refractive index represented by NM=nM?i·km and a glass substrate having a refractive index NG includes, from the metal film side: (A) a first dielectric layer having a refractive index N1; (B) a second dielectric layer provided on the first dielectric layer and having a refractive index N2; and (C) a third dielectric layer provided on the second dielectric layer and having a refractive index N3, in which N1<nM, N1>NG, N2<NG, and N3>NG hold. Accordingly, light which is incident on the glass substrate and which reaches the metal film is prevented from being reflected by the metal film.

Abstract: A coated article includes a temperable antireflection (AR) coating that utilizes medium and low index (index of refraction “n”) layers having compressive residual stress in the AR coating. In certain example embodiments, the coating may include the following layers from the glass substrate outwardly: silicon oxynitride (SiOxNy) medium index layer/high index layer/low index layer. In certain example embodiments, depending on the chemical and optical properties of the high index layer and the substrate, the medium and low index layers of the AR coating are selected to cause a net compressive residual stress and thus optimize the overall performance of the antireflection coating when the coated article is tempered and/or heat-treated.

Abstract: A substrate for use in a display panel includes a transparent substrate and a light blocking layer which includes two layers of different optical densities. A low optical density layer that is one of the two layers of different optical densities which has a lower optical density is interposed between a high optical density layer that is the other one of the two layers which has a higher optical density and the transparent substrate. The sum of the optical density of the low optical density layer and the optical density of the high optical density layer is not less than 3.0. According to the present invention, a substrate which includes a low-reflectance light blocking layer is provided, the substrate being suitably used as a color filter substrate of a display device which has a low reflection structure, such as a low reflection film.