Glass sheet article with improved visual and tactile feel

Abstract

The present invention relates to a glass article, in particular a glass article for car interiors The glass article comprises a glass sheet having a first surface and a second surface opposite to the first surface. The first surface comprises at least one roughened zone. A decorative layer is disposed on at least a portion of the second surface of the glass sheet substrate. The decorative layer comprises a background having a background color and at least one foreground, having a foreground color. The difference of color Delta E between the foreground and the background is equal to or greater than 1 (ΔE≥1). The at least roughened zone is positioned on the first surface of the glass sheet in a complementary fashion to the background and / or to the least one foreground. The present invention further relates to a dead front article combining the glass article and at least a display device having at least a screen. The decorative layer has a perforated zone positioned in a complementary fashion to the screen, that comprises discrete openings having a dimension equal to or lower than 200µm. < Figure 6>

Description

Glass sheet article with improved visual and tactile feelField of the Invention The present invention relates to a glass article with improved visual and tactile feel, especially for use as decorative elements in car interiors. The present invention further relates to a dead front article wherein the glass article is used in combination with a display device.Background ArtIt is well known to use cover glass sheets over displays to provide the necessary protection. It is alsowell known in the art, to texture the surface of the cover glass sheet, typically above the screen of the display device, to improve its optical properties, such as antiglare and sparkle reduction. Glass articles can also be used as design decorative elements.In some applications, such as interior design elements and / or displays for the car industry, glassarticles are specifically designed to fit a specific location in the car such as the dashboard, the centralarmrest , the door armrest ,… In such applications, it could be that the cover glass sheet used to hideand protect a display device, is sometimes larger and even much larger than the display device. Insome other embodiments, cover glass sheets are used without any display as integral parts of the carinterior. Hence, the design and aesthetics of car interior elements are critical to their commercialsuccess. The car industry is therefore still looking for high end technical solutions to provide aestheticallypleasing car interior elements to improve the overall driver experience. Furthermore, it is of interestto the car industry to use such superior decor elements to hide display devices. When such display device is in the Off mode, it should be completely invisible to the car user whereas in the On mode, the display should be perfectly visible and provide the expected high resolution and optical properties.Summary of the InventionThe present invention relates to a glass article comprising a glass sheet comprising a first surface and a second surface opposite to the first surface, wherein the first surface comprises at least oneroughened zone. It further comprises a decorative layer disposed on at least a portion of the second surface of the glass sheet, wherein the decorative layer comprises a background having a backgroundcolor and at least one foreground, having a foreground color. The difference of color, Delta E (CIEtechnical report 15:2004), between the foreground color and e background color is equal to or greaterthan 1 (ΔE≥1), preferably equal to or greater than 2 (ΔE≥2,) preferably equal to or greater than 5 (ΔE≥5), more preferably equal to or greater than 10 (ΔE≥10), and even more preferably equal to or greater than 25 (ΔE≥25). The at least one roughened zone is positioned on the first surface of the glass sheet in a complementary fashion to the background and / or to the at least one foreground. The at least one roughened zone is typically bordered by at least one border area. The at least one roughened zone has a mean surface roughness defined by an arithmetic amplitude value, Ra(zone), and the border area has a mean surface roughness defined by an arithmetic amplitude value, Ra(border). The absolute difference between Ra(zone)and Ra(border)is preferably at least 25 nm (│Ra(zone)-Ra(border)│ ≥ 25nm), preferably at least 50 nm (│Ra(zone) – Ra (border)│ ≥ 50 nm), more preferably at least 100 nm (│Ra(zone)– Ra(border)│ ≥ 100 nm), and even more preferably at least 200 nm (│Ra(zone) –Ra(border)│ ≥ 200 nm). Ra ismeasured on an evaluation length of 12 mm and with a Gaussian filter of which the cut-off wavelength is 0.8 mm. The at least one roughened zone has also a mean surface roughness defined by a spacing value,Rsm(zone) and the border area has a mean surface roughness defined by a spacing value, Rsm(border). Theabsolute difference between Rsm(zone) and Rsm(border) is preferably at least 2 µm (│Rsm(zone) - Rsm(border)│≥ 2 µm), preferably at least 3 µm (│Rsm(zone) - Rsm(border)│ ≥ 3 µm), preferably at least 10 µm (│Rsm(zone)- Rsm(border)│ ≥ 10 µm), more preferably at least 20 µm (│Rsm(zone) - Rsm(border)│ ≥ 20 µm), and evenmore preferably at least 30 µm (│Rsm(zone) - Rsm(border)│ ≥ 30 µm). Rsm is measured on an evaluationlength of 12 mm and with a Gaussian filter of which the cut-off wavelength is 0.8 mm. It is preferred that the decorative layer comprises at least two foregrounds, preferably a multitude of foregrounds and it is preferred that the background and the at least one foreground of the decorative layer, picture a leather grain pattern, a wood grain pattern, a fabric pattern, a stone pattern, a brushed metal finish pattern, a carbon fiber pattern, and / or a geometrical pattern. In a preferred embodiment, the decorative layer comprises at least two foregrounds. The first surfacecomprises at least two roughened zones wherein the first roughened zone has a Ra1(zone) and iscomplementary to a first foreground and wherein a second roughened zone has a Ra2(zone) and iscomplementary to a second foreground or to the background. The first and second roughened zonesare characterized by different roughness such that there is preferably an absolute difference betweenRa1(zone) and Ra2(zone) of at least 25 nm (│Ra1(zone) - Ra2(zone) │ ≥ 25 nm, preferably at least 50 nm(│Ra1(zone) - Ra2(zone))│ ≥ 50 nm), more preferably at least 100 nm (│Ra1(zone) - Ra2(zone) │ ≥ 100 nm,even more preferably at least 200 nm (│Ra1(zone) - Ra2(zone) │ ≥ 200 nm.In the preferred embodiment wherein the decorative layer comprises at least two foregrounds, thefirst surface comprises at least 2 roughened zones wherein a first roughened zone has a Rsm1(zone)andis complementary to the first foreground and wherein a second roughened zone has Rsm2(zone) and iscomplementary to the second foreground or to the background. The first and second roughened zonesare characterized by different roughness such that there is preferably an absolute difference betweenRsm1(zone) and Rsm2(zone) of at least 2 µm (│Rsm1(zone) – Rsm2(zone)│ ≥ 2 µm), preferably at least 3 µm(│Rsm1(zone) – Rsm2(zone)│ ≥ 3 µm), preferably at least 10µm (│Rsm1(zone) - Rsm2(zone)│ ≥ 10µm), morepreferably at least 20µm (│Rsm1(zone) – Rsm2(zone)│ ≥ 20µm), and even more preferably at least 30µm(│Rsm1(zone)-Rsm2(zone)│ ≥ 30µm). The decorative layer preferably exhibits a TLD4 light transmittance equal to or lower than 50% (TLD4≤ 50%), preferably equal to or lower than 30% (TLD4 ≤ 30%), preferably equal to or lower than 10%(TLD4 ≤ 10%), preferably equal to or lower than 5% (TLD4 ≤ 5%), more preferably equal to or lowerthan 2% (TLD4 ≤ 2%). The thickness (T) of the decorative layer, is typically, equal to or greater than1μm (T ≥ 1µm), preferably equal to or greater than 2μm (T ≥ 2µm), preferably equal to or greater than 3μm (T ≥ 3µm), more preferably equal to or greater than 5μm (T ≥ 5µm) and / or equal to or lower than 40µm (T ≤ 40µm), preferably equal to or lower than 30µm (T ≤ 30µm), preferably equal to or lower than 25µm (T ≤ 25µm), preferably equal to or lower than 20µm (T ≤ 20µm), preferably equal to or lower than 15µm (T ≤ 15µm), more preferably equal to or lower than 12µm (T ≤ 12µm).The glass sheet can be a strengthened glass, preferably a chemically strengthened glass. The first faceof the glass article can be coated with an anti-fingerprint coating. The present invention further relates to a glass article wherein the decorative layer has a perforated zone comprising discrete openings having a dimension equal to or lower than 200 µm. Preferably, the discrete openings are spaced from each other by less than 200μm, preferably by less than 150µm, more preferably by less than 100µm and preferably are in the shape of lines having a width of less than 30 μm, preferably of less than 20µm, preferably of less than 10µm.The present invention further relates to a deadfront article comprising the glass article describedabove and at least a display device having at least a screen, wherein the second surface of the glasssheet is facing the display device. The perforated zone is positioned in a complementary fashion tothe screen and comprises discrete openings having a dimension lower than 200µm. The present invention further relates to a method for producing the glass articles and the deadfront articles of the present invention. The present invention also relates to the use of the glass article and of the deadfront article for car interior application, home appliances and / or integrated interactive display. Other aspects and advantages of the embodiments will become apparent from the following detailed description taken in conjunction with the accompanying drawings which illustrate, by way of example, the principles of the described embodiments. Brief description of the drawingsFigure 1 shows a top view of a decorative layer of a glass article according to one embodiment of thepresent invention, picturing a wood grain pattern. Figure 1(a) shows the background of the decorativelayer. Figure 1(b) shows the foreground of the decorative layer. Figure 1(c) shows the foreground andthe background of the decorative layer.Figure 2 shows a top view of a glass article according to one embodiment of the present invention,picturing a geometrical pattern. The decorative layer comprises one background and two foregrounds.Figure 3 shows an exploded view of a roughened zone in a complementary fashion to a foreground.Figure 4 shows the method steps to produce one embodiment of the present invention, comprisinga partial roughening phase followed by a decorative layer deposition.Figure 5 shows the method steps to produce another embodiment of the present invention,comprising a first partial roughening phase, a second partial roughening phase, followed by a decorative layer deposition.Figure 6 shows a cross-sectional view of a dead front article that comprises one embodiment of a glassarticle and display device, wherein the decorative layer comprises a perforated zone.Figure 7 shows a cross-sectional view of a portion of a glass article wherein the decorative layercomprises discrete openings.Figure 8 shows a top view of a glass article.Figure 9 shows a top view of a dead front article in the OFF mode (Figure 9(a)) and in the ON mode(Figure 9(b)). Detailed description of the Invention The car industry is still looking for high end technical solutions to provide aesthetically pleasing car interior elements to improve the overall driver experience. It is an object of the present invention toprovide a glass article to be used as a decorative element, especially for car interiors. It is a furtherobject of the present invention to provide a deadfront article that comprises the glass article and adisplay device wherein the screen is invisible in the Off mode but provides excellent screen visibility in the On mode. Current decorative elements are typically provided in plastics or wood. It has been found that glassarticles of the present invention have several technical advantages over plastics. Key technicaladvantages are sustainability and superior quality : Glass provides the required scratch resistance.Indeed, as the surfaces of the automotive interiors are often interactive, scratch resistance is key to achieve and maintain high quality. Glass sheets last longer. Glass offers furthermore a more premiumeffect than plastic, thanks to its soft touch, its reflection and transparency. Glass can be partially madefrom recycled material and is fully recyclable. Glass being stiffer than plastic requires less material toprovide the same mechanical resistance profile with less weight. Finally glass is an easy to cleanmaterial. Glass offers longer lifetime and stability than all current plastic materials and a superiorsustainability profile.Some premium car manufacturers wish to use wood for high aesthetical value car interior elements.However, wood materials are water and oil permeable and are typically replaced by mimicking resins. Furthermore, wood panels cannot be used over display devices, even in very thin layers since woodpanel are still visible when the screen is lit.It has been surprisingly found that the glass article of the present invention can imitate any kind ofnatural texture with a very superior visual appearance, a touch feeling of luxury interface and even a 3D texture effect while avoiding the drawbacks of other previous materials and bringing the technicaladvantages of quality and sustainability. In addition, it has been surprisingly found that the glassarticle of the present invention can have very different gloss and diffusion properties to provide veryglossy surface to mimic e.g. marble or to provide diffusing surface to mimic leather, stone or woodmaterials.It has been further found that when such glass article is combined with a display device, it completelymasks the display device in the Off mode – the display being completely invisible. With an appropriatedecoating scheme, it further provides full visibility of the display device in the On mode. The decorativelayer disappears in the profit of the display and the glass article provides the required high resolutionand optical properties. GLASS ARTICLEThe glass article of the present invention, comprises a glass sheet with an external face and an internalface. The internal face refers to the face facing the carrier and is herein referred to as the secondsurface of the glass sheet, while the external face refers to the opposite face, faces the consumer andis herein referred to as the first surface of the glass sheet. When used in a car application, the firstsurface will face the interior of the car. The glass sheet may be flat or totally or partially curved to correctly fit with the particular design of the vehicle or the potentially glass support, as the shape requires for the application. The present invention covers a glass article comprising: a) a glass sheet comprising a first surface and a second surface opposite to the first surfacewherein the first surface comprises at least one roughened zone, b) a decorative layer disposed on at least a first portion, preferably on the entire area, ofthe second surface of the glass sheet substrate. The decorative layer comprises a background and at least one foreground. The background and the foreground createtogether a decorative pattern.The background has a background color characterised by : a*1, b*1 and L*1. The foreground has aforeground color characterised by a*2, b*2and L*2. The colors L*a*b*are defined by the International Commission on Illumination CIELAB color space (1976). The background color and the foregroundcolor differ so that : Delta E is equal to or greater than 1 (ΔE ≥ 1). Preferably Delta E is equal to orgreater than 2 (ΔE ≥ 2), preferably Delta E equal to or greater than 5 (ΔE ≥ 5), more preferably Delta Eequal to or greater than 10 (ΔE ≥ 10) and even more preferably Delta E equal to or greater than 25 (ΔE≥ 25). Delta E is calculated according to International Commission on Illumination (CIE) Colorimetry,3rd Edition in the technical report 015:2004, such as:wherein a*, b* and L* are CIELab values measured in transmission with illuminant D65, 10°, SCI.The background and the at least one foreground create a decorative pattern on the decorative layerand can picture a leather grain pattern, a wood grain pattern, a fabric pattern, a stone pattern, abrushed metal finish pattern, a carbon fiber pattern, and / or a geometrical pattern. For car interiorapplications, the wood grain pattern and / or the brushed finished metal pattern are preferred. Thelayer can comprise two foregrounds, preferably a multitude of foregrounds, to create sophisticateddecorative designs.When several foregrounds are present, it is preferred that they present a color difference: Delta Eequal to or greater than 1 (ΔE ≥ 1), preferably Delta E equal to or greater than 2 (ΔE ≥ 2), preferablyDelta E equal to or greater than 5 (ΔE ≥ 5), more preferably Delta E equal to or greater than 10 (ΔE ≥10) and even more preferably Delta E equal to or greater than 25 (ΔE ≥ 25).In Figure 1, the decorative layer (3) (Figure 1(c)) has been artificially divided into a representation ofthe foreground (32) (black area) in Figure 1(a), and a representation of the background (31) (grey area)in Figure 1(b). When combined, they form the decorative layer (3). In one illustrating example, thedecorative layer represents a wood grain pattern wherein the background is light beige PMS color7500C having CIELab color values of L*=84.09, a*=-1.28 and b*=22.75. The foreground is light brownPMS7504C having CIELab color values of L*=52.63, a*=7.75 and b*=19.26. The color difference DeltaE between the background and the foreground is ΔE = 33.Figure 2 pictures a glass article (A) of the present invention wherein the decorative layer (3) comprisesone background (31) and two foregrounds (32, 32b) forming together a geometrical pattern. Thebackground is light grey colour having CIELab color values of L*=37, a*=0 and b*= 0. The firstforeground is a medium grey colour having CIELab colour values of L*=25, a*=0 and b*= 0. The secondforeground is dark grey colour having CIELab colour values of L*=11, a*= 0 and b*= 0. The color difference Delta E between the background and the first foreground is ΔE = 12. The color difference Delta E between the background and the second foreground is ΔE = 26. The color difference Delta E between the first foreground and the second foreground is ΔE = 14.ROUGHENED ZONE The at least one roughened zone of the first surface of the glass sheet substrate is positioned in acomplementary fashion to the background and / or to the least one foreground of the decorative layerdisposed on the second surface of the glass sheet substrate. By “positioned in a complimentaryfashion", it is understood that the roughened zone has substantially the same overall shape, perimetershape, design, and / or pattern, and occupy substantially the same relative surface area than theforeground or background - on the opposing surface of the glass sheet. This means that the roughenedzone and the corresponding decorative area on the opposing surface are designed to match each other in terms of their geometrical features (same overall shape, perimeter shape, design, and / orpattern,…) and the level of overlap. Therefore, any glass sheet exhibiting two zones with differentroughness on a first surface and a coating on a second surface opposite to the first surface is not considered as positioned in a complementary fashion, as the roughened zones do not correspond tothe decorative foreground or background areas in terms of shape, perimeter, design, pattern, orsurface area.Figure 3 illustrates the complementary positioning of the roughened zone with the foreground of thedecorative layer. It represents one embodiment of a glass article of the present invention (A) whereinthe first surface (21) of the glass sheet (2) comprises one roughened zone (1). In Figure 3, theroughened zone (1) is artificially separated from the first surface (21) of the glass sheet (2) for betterunderstanding. The roughened zone (1) on the first surface (21) is positioned in complementaryfashion to the foreground (32) of the decorative layer (3) on the second surface of the glass sheet (22).This means that the roughened zone (1) has substantially the same overall shape, perimeter shape, design, and / or pattern, and occupies substantially the same relative surface area as the foreground(32) of the decorative layer (3). The wood pattern of the roughened zone (1) corresponds to the woodpattern of the foreground (32) of the decorative layer (3), ensuring that the roughened zone and thedecorative layer are designed to match each other in terms of their geometrical features and level of overlap. In a preferred embodiment, the at least one roughened zone is defined by (i) an area of relatively higher surface roughness bordered by at least one border area of relatively lower surface roughnessor (ii) an area of relatively lower surface roughness bordered by at least one area of relatively highersurface roughness. Also contemplated in the present invention : the at least one roughened zone isdefined by (i) an area of relatively higher surface roughness bordered by at least one border area ofeven higher surface roughness or (ii) an area of relatively lower surface roughness bordered by at least one area of even lower surface roughness.Indeed, the at least one roughened zone may be defined by a relatively higher surface roughness thatis positioned in a complimentary fashion to the at least one foreground, bordered by at least one areaof relatively lower surface roughness that is positioned in a complimentary fashion to the background.One preferred way of achieving such an effect is to provide: i. the majority of first surface area of the glass sheet substrate has a relatively smooth finish ofrelatively low surface roughness (e.g., ranging from no surface roughness to some low or moderate level of surface roughness) and corresponds to the background; andii. the area of the at least one roughened zone corresponding to the at least one foreground, hasrelatively higher surface roughness represents a minority of the first surface area of the glasssheet substrate; e.g., ranging from a moderate level of surface roughness to a high level of surface roughness as compared with the smooth finish of the majority of the first surface area.Alternatively, the at least one roughness zone may be achieved via an area of relatively lower surface roughness that is positioned in the complimentary fashion to the at least one foreground, borderedby at least one area of relatively higher surface roughness corresponding to the background. Onepreferred way of achieving such an effect is to provide: i. a majority of the first surface area of the glass sheet substrate has a relatively rough finish(e.g., ranging from some moderate level of surface roughness to some high level of surface roughness) that corresponds to the background; andii. the area of the at least one roughened zone has a relatively lower surface roughnessrepresents a minority of the first surface area; e.g. ranging from no surface roughness to somelow level of surface roughness, as compared with the rough finish of the majority of the first surface area.1. Roughness featuresBy “roughened”, it is typically understood that the roughened zone is characterized by the roughnessfeatures of arithmetic amplitude value Ra (nm) and spacing value Rsm (µm) roughness values definedin the standard ISO 4287-1997. The roughness is a consequence of the existence of surfaceirregularities / patterns. These irregularities consist of bumps called "peaks" and cavities called"valleys". On a section perpendicular to the textured surface, the peaks and valleys are distributed on either side of a "center line" (algebraic average) also called "mean line". In a profile and for a measurement along a fixed length (called “evaluation length”): -Ra being the an arithmetic mean height value (amplitude value) corresponds to theaverage height difference of microstructures, meaning the arithmetic average of absolute values of height differences between the peaks and valleys. Ra measure the distance between this average and the “line" and gives an indication of the height of the patterns on the textured surface; -Rsm being the mean width of the profile elements (spacing value) is the averagedistance between two successive passages of the profile through the "mean line"; and this gives the average distance between the "peaks" and therefore the average value of the widths of the patterns. The roughness values according to the invention may be measured with a profilometer using 2D profiles (according to ISO4287 standard). Alternatively, one can use the technique of 3D profilometry (according to ISO 25178 standard) but isolating a 2D profile which then gives access to the parameters defined in the ISO4287 standard. According to the invention, the roughness values are measured with a Gaussian filter, which is a filter of long wavelengths, also called profile filter ^c. It is used for separating the components of roughness / texture from components of undulation of the profile. The evaluation length, L, according to the invention is the length of the profile used to evaluate the roughness. Base length, l, is the part of the evaluation length used to identify irregularities characterizing the profile to assess. The evaluation length, L, is divided / cut into n base lengths, l, which depend on the profile irregularities. The base length, l, corresponds to the “cut-off” wavelength (or limit wavelength) of the Gaussian filter (l = ^c). Typically, the evaluation length is of at least five times the base length. In roughness measurements, a short wavelength filter (profile filter ^s) is also commonly used to eliminate the effects of very short wavelengths which are background noise. The at least one roughened zone has a mean surface roughness defined by an arithmetic amplitudevalue, Ra(zone). The border area has a mean surface roughness defined by an arithmetic amplitudevalue, Ra(border). In order to create a significant difference of visual and tactile rendering between the background and the at least one foreground, whether the roughened zone corresponds to theforeground or background; there is preferably an absolute difference between Ra(zone) and Ra(border) ofat least 25 nm (│Ra(zone) - Ra(border)│ ≥ 25 nm), preferably at least 50 nm (│Ra(zone) – Ra(border)│ ≥ 50 nm),more preferably at least 100 nm (│Ra(zone) – Ra(border)│ ≥ 100 nm), and even more preferably at least200 nm (│Ra(zone) – Ra(border)│ ≥ 200 nm). Typically, the absolute difference between Ra(zone) and Ra(border)is no more than 2 microns, preferably no more than 1 micron. The at least one roughened zone can also be characterised by a mean surface roughness defined by aspacing value, Rsm(zone). The border area has a mean surface roughness defined by a spacing value,Rsm(border). In order to create a significant difference of visual and tactile rendering between the background and the at least one foreground, whether the roughened zone corresponds to the foreground or background; there is preferably an absolute difference between Rsm(zone) and Rsm(border)is at least 2 µm (│Rsm(zone) – Rsm(border)│ ≥ 2 µm), preferably at least 3 µm (│Rsm(zone) – Rsm(border)│ ≥ 3µm), preferably at least 10 µm (│Rsm(zone) - Rsm(border)│ ≥ 10 µm), more preferably at least 20 µm(│Rsm(zone) - Rsm(border)│ ≥ 20 µm), and even more preferably at least 30 µm (│Rsm(zone) - Rsm(border)│ ≥30 µm). Typically, the absolute difference between Rsm(zone) and Rsm(border) is no more than 150µm,preferably no more than 100µm. Several embodiments are contemplated within the invention:a. One roughened zone is created on the first surface of the glass sheet: The roughened zone can becreated in complementary fashion to the foreground and therefore the border area corresponds to the background of the decorative layer. In another embodiment, the roughened zone can becreated in complementary fashion to the background and therefore the border area correspondsto the foreground of the decorative layer. There is preferably an absolute difference betweenRa(zone) and Ra(border) of at least 25 nm (│Ra(zone) - Ra(border)│ ≥ 25 nm). There is preferably an absolutedifference between Rsm (zone) and Rsm(border) is at least 2 µm (│Rsm(zone) – Rsm(border)│ ≥ 2 µm).b. Two roughened zones are created on the first surface of the glass sheet :i. in one embodiment of the present invention, the two roughened zones correspondrespectively to the foreground and the background of the decorative layer. The differentroughened zones are characterized by different roughness values : the foreground roughenedzone has an arithmetic amplitude value Ra(fore) and a spacing value Rsm(fore). The backgroundroughened zone has an arithmetic amplitude value Ra(back) and a spacing value Rsm(back). Thereis preferably an absolute difference between Ra(fore)and Ra(back)of at least 25nm (│Ra(fore)- Ra(back)│ ≥ 25 nm). There is preferably an absolute difference between Rsm(fore)and Rsm(back)is at least 2 µm (│Rsm(fore) – Rsm(back)│ ≥ 2 µm).ii. Depending on the complexity of the decorative design, the decorative layer can comprise 2foregrounds. Hence, the first surface can comprise at least 2 roughened zones. Roughenedzone 1 corresponding to the first foreground has an arithmetic amplitude value Ra1(zone) anda spacing Rsm1(zone). Roughened zone 2 corresponding to the second foreground has an arithmetic amplitude value Ra2(zone) and a spacing value Rsm2(zone). There is preferably anabsolute difference between Ra1(zone) and Ra2(zone) of at least 25 nm (│Ra1(zone) – Ra2(zone)│ ≥ 25nm). There is preferably an absolute difference between Rsm1(zone) and Rsm2(zone) of at least 2µm (│Rsm1(zone) – Rsm2(zone)│ ≥ 2 µm).c. Multiple roughened zones: The combination of the different embodiments described above arealso contemplated within this invention : one or more roughened zone(s) positioned in a complementary fashion to one or more foreground(s) and / or a roughened zone positioned in a complementary fashion to the background; preferably with an absolute difference between oneroughened zone and its surrounding border zone : Ra(zone) and Ra(border) of at least 25 nm (│Ra(zone) -Ra(border)│ ≥ 25 nm). There is preferably an absolute difference between Rsm(zone) and Rsm(border)of at least 2 µm (│Rsm(zone) – Rsm(border)│ ≥ 2 µm).All embodiments specifying the preferred and more preferred absolute differences of the arithmeticamplitude values Ra and / or spacing values Rsm upper and lower limits, apply to each embodiment ofthe present invention described herein above. In some embodiments of the present invention, the decorative layer can comprise several foregroundsthat overlap with each other. The corresponding multiple roughening zones can overlap as well.2. Haptic propertiesThe morphological variations between each roughened zone bring a very nice touch feeling for theuser, as the perceived feeling with the fingers will be dictated by the specific and local roughness of the glass article. Having various roughened zones with their own related roughness parameters set allows to mimic the touch feeling of natural materials, or to guide the user onto the surface of the glass article without the need of looking it. As described herein, the level of surface roughness may range from a feeling of smooth (very little or no surface roughness), to a feeling of velvety softness (moderate levels of surface roughness), to a feeling of substantial roughness (higher levels of roughness) in order to achieve the tactile response corresponding to the decorative design and create the high end consumer experience.For example, a relatively smooth surface roughness may have an arithmetic amplitude Ra valueranging from 10 nm, 20 nm, 30 nm, 40 nm, 50 nm, 60 nm, 70 nm to 80 nm. A relatively moderatesurface roughness may typically have a Ra surface roughness ranging from 90 nm, 100 nm, 125 nm,150 nm, 175 nm to 200 nm. Arithmetic amplitude Ra values for typical rough surface will range from225 nm, 250 nm, 275 nm, 300nm to 400 nm.For example, a relatively smooth surface roughness may have a spacing Rsm value ranging from 5 µm,10 µm, 15 µmm to 20 µm. A relatively moderate surface roughness may typically have a Rsm spacingvalue ranging from25 µm, 30 µm, 35 µm to40 µm. Spacing Rsm values for typical rough surface willrange from 45 µm, 50 µm, 55 µm, to 100 µm.For superior tactile response of the consumer, an absolute difference between Ra(zone) and Ra(border)could preferably be comprised between 50nm-500nm and an absolute difference between Rsm(zone)and Rsm(border) could preferably be comprised between 2µm-100µm. 3. Optical propertiesEach roughened zone can be further characterized by the optical properties. The gloss and diffusion properties are related to the surface morphology parameters (Ra, Rsm as described above). For some decorative design such as a silk pattern, a stone pattern, and / or a brushed metal finish pattern, the optical properties of gloss and diffusion properties can be of higher interest than the morphological properties associated to the haptic property, of the roughened zone.The gloss characterizes the brightness or shine of a surface, and more particularly corresponds to thespecular reflectance of a surface relative to a standard (such as, for example, a certified black glass standard). The gloss is measured in accordance with the ASTM standard D523-14 “Standard Test Method for Specular Gloss” dated May 4, 2017, at the specific angle of 60° and it is expressed in SGU (standard gloss units), also expressed as G.U. hereafter. Non-roughened glass surfaces are commonly assessed to have a gloss value ≥ 140 G.U. More roughening, lower the reflection intensity and hence lower becomes the gloss value. Gloss (60°) categories : Extremely low gloss (ELG): 0 ≤ Gloss (G.U.) < 15 Very low gloss (VLG): 15 ≤ Gloss (G.U.) < 30 Low gloss (LG): 30 ≤ Gloss (G.U.) < 50 Medium gloss (MG): 50 ≤ Gloss (G.U.) < 80 High gloss (HG): 80 ≤ Gloss (G.U.) < 110Very high gloss (VHG): 110 ≤ Gloss (G.U.) < 140 Extremely high gloss (EHG): Gloss (G.U.) ≥ 140The diffusion of a glass surface represents the relative intensity of reflected light scattered by the surface. Non-roughened glass surfaces are commonly assessed to have a diffusion value close to 0%.Higher is the roughening of the surface, higher the reflection scattering and hence higher becomesthe diffusion value. Diffusion values are measured with a SMS-1000 equipment from DM&S in accordance with the system manufacturer procedure, with an angle of incident light of 6°, a distance of 260mm between the glass and the lens, and a lens with a 16mm focal length and a 5.6mm aperture. Diffusion categories : Extremely low diffusion (ELD): 0 ≤ Diffusion (%) < 1 Very low diffusion (VLD): 1 ≤ Diffusion (%) < 10 Low diffusion (LD): 10 ≤ Diffusion (%) < 30 Medium diffusion (MD): 30 ≤ Diffusion (%) < 60 High diffusion (HD): 60 ≤ Diffusion (%) < 80Very high diffusion (VHD): 80 ≤ Diffusion (%) < 95 Extremely high diffusion (EHD): 95 ≤ Diffusion (%) ≤ 100Each roughened zone is thus defined by a single set of gloss and diffusion values. For example, thedecorative layer can have a background, a first foreground and a second foreground that can be respectively positioned in a complementary fashion to first roughened zone characterized by a texture providing a EHG gloss and a ELD diffusion, a second roughened zone characterized by a texture providing a MG gloss and a MD diffusion and a third roughened zone characterized by a texture providing a LG gloss and a VHD diffusion.For example, to mimic glossy materials such as marble, it is preferably achieved via at least an opticalproperties set (HG, VLD), and more preferably (VHG, ELD), corresponding to roughness parameters (Ra, Rsm) described in the table below. For diffusive materials such as stone or wood, a combination of a first textured zone with optical properties set (LG, MD) coupled with a second textured zone having optical properties set such as (VLG, EHD) is preferable.Gloss and diffusion can be typically related to a certain combinations of Ra and Rsm values. Forexample (non-exhaustive): Optical properties Ra (nm) Rsm (µm)LG, MD 200-250 8-12HG, VLD 30-70 8-15VHG, ELD 20-50 5-10VLG, EHD 300-400 40-60MG, VHD 200-300 40-604. Roughened ProcessThe roughened zone can be achieved by etching (acid, alkaline, liquid or vapor), laser texturing, sandblasting, embossing, rolling, mechanical polishing, engraving, and / or vapor deposition (e.g., chemicalor physical vapor deposition), preferably by etching. Acid etching is preferred since it provides processcontrol, short process time and flexibility.Many techniques can be used to obtain the at least one roughened zone on the glass sheet. Those techniques can be directly selective by only treating the zone(s) that need to be roughened or can beindirectly selective by using a temporary and protective mask to protect the area(s) that do not needto be roughened. Examples of directly selective texturing are sandblasting, chemical etching (“brushing technique” with eg. HF-based paste), laser texturing, etc. Indirect selective texturing techniques can be sandblasting, wet and dry chemical acid-etching or alkaline etching, mechanical polishing, etc. involving the usage of a protective and temporary layer that can be applied by any known techniques such as inkjet printing, wax deposition, screen-printing application of a IR / UV-curable ink, transfer technique, spray application, etc. In the present invention, the at least one roughened zone of the first surface of the glass sheet is positioned in a complementary fashion to the background and / or to the least one foreground of thedecorative layer disposed on the second surface of the glass sheet. In one embodiment of the presentinvention, one way to achieve the positioning of the roughened zone in complementary fashion to thebackground and / or the foreground(s), a numeric file containing the desired decorative design iscreated on any kind of software, such as Adobe Illustrator® and Adobe Photoshop®. This uniquenumeric file will be used both for the partial roughening phase to define the areas where the glasssheet should not be exposed to the roughening process, and for the decorative layer deposition. The decorative layer comprising the background and at least one foreground, is printed on the secondsurface (22) of the glass sheet (2), before or after the roughening process.Steps illustrated and described hereinafter are not exhaustive; other steps can be performed before, after, or between any of the described and illustrated steps. In some embodiments, the steps may beperformed in a different order. Variations of the process illustrated in Figures 4 and 5 are within the scope of the present disclosure. The roughening of the first surface of the glass sheet is preferably achieved via wet etching. Such wet etching can be a vertical etching process whereby the glass sheet is dipped into an etching bath. In such etching process, the second surface of the glass sheet needs to be protected during the etching step by an etching resistant mask of any other means. In another embodiment, wet etching is an horizontal etching process whereby only the first surface of the glass sheet is etched by the etching solution. The process described hereunder focuses on horizontal etching for simplification but could also be achieved by vertical etching combined with masking of the second surface of the glass sheet with an etch resistant material. Masking can be achieved by any suitable techniques, for example, printing, screen printing, doctor blading, gravure printing, photolithography, etc. and preferably via ink printing.Figure 4, steps (i) to (iv), illustrates one embodiment of the roughening process wherein at least oneroughened zone is obtained in a complementary fashion to the background and / or foreground. A glass sheet is provided in step (i). In step (ii), a portion of the first surface (21) that is complementary to the foreground (32) or background (31) of the decorative layer (3) is masked with an etch resistantmaterial (7) via ink printing, represented by the black area. In step (iii), only the first surface (21) isexposed to an etching solution to generate a certain level of surface roughness characterized byspecific Ra and Rsm features. In step (iv), the mask is removed, providing a glass sheet with the partialetching of the first surface and the creation of one roughened zone (1) on the first surface (v). Step(v) shows a top view of the glass sheet to which the decorative layer (3) has been applied by inkprinting on the second surface (22), in complementary fashion of the one roughened zone (1) of thefirst surface.The combination of the steps (ii) to (iv) is hereinafter referred to a ‘partial roughening phase’. Thepartial roughening phase comprises the steps of masking – roughening (preferably etching) – maskremoval, and can be repeated one or more times to create two or more different roughened zones onthe first surface; corresponding to two or more foregrounds and / or background of the decorativelayer.Figure 5, steps (i) to (ivb), represents a roughening process comprising two partial roughening phases.Steps (i) to (iv), show a first partial roughening phase. A glass sheet is provided in step (i). In step (ii),a portion of the first surface (21) that is complementary to the background (31) and the secondforeground (32b) of the decorative layer (3) is masked with an etch resistant material (7), representedby the black area. In step (iii), only the first surface (21) is exposed to an etching solution to generatea first roughened zone (1) corresponding to the first foreground (32) of the decorative layer. The firstroughened zone has a certain level of surface roughness characterized by specific Ra1 and Rsm1textural features. In step (iv), the mask is removed, providing a glass sheet wherein a first roughened zone has been created in a complementary fashion to the first foreground of the decorative layer.Steps (ib) to (ivb), shows a second partial roughening phase wherein the glass sheet obtained in (iv) isused as the glass sheet of step (ib). In step (iib), a portion of the first surface (21) that is complementary to the background (31) and to the first foreground (32) of the decorative layer (3) is masked with anetch resistant material (7), represented by the black area. In step (iiib), only the first surface (21) isexposed to an etching solution to generate a second roughened zone (1b) corresponding to the secondforeground (32b) of the decorative layer. The second roughened zone has a certain level of surfaceroughness characterized by specific Ra2 and Rsm2 features. In step (ivb), the mask is removed, providing a glass sheet wherein 2 roughened zones have been created in a complementary fashion tothe 2 foregrounds of the decorative layer. Step (v) shows a top view of the glass sheet to which thedecorative layer (3) composed of the background (31) and the 2 foregrounds (32) and (32b) that hasbeen applied by ink printing on the second surface (22) in complementary fashion of the 2 roughenedzones (1) and (1b) of the first surface.In the embodiment wherein one or more partial roughening phases are achieved, the second partialroughening phase can create distinct or overlapping roughening zones. Figure 5 illustrates anembodiment wherein the second roughening zone overlaps the first roughening zone to create some3D effect. In a preferred process of the present invention, a preliminary step of roughening the first surface ofthe glass sheet can be achieved before the first partial roughening phase. In this preliminary step,typically, the entire area of the first surface of the glass sheet is exposed to an etching solution togenerate a certain level of surface roughness (from low to high surface roughness). Then partialroughening phase(s) as described above can be achieved to create specific roughened zone(s).Typically, the etching solution used for the roughening steps may include hydrofluoric acid, sulfuricacid, ammonium fluoride, and a water miscible organic solvent. In some embodiments, the etching solution may include 1-15wt% (weight percent) hydrofluoric acid, 1-15wt% sulfuric acid, 0-40wt% ammonium or potassium fluoride, 0-35wt% water miscible organic solvent, and water. In someembodiments, the etching solution may comprise 4-10wt% hydrofluoric acid, 0-30wt% ammonium orpotassium fluoride, 0-25wt% water miscible organic solvent, and water. In some embodiments, the water miscible organic solvent in the etching solution may be an alcohol (such as ethanol and iso- propanol), ethylene glycol, propylene glycol, glycerol, or combinations thereof. Other etching solutions may include 1-40wt% (weight percent) hydrofluoric acid, 1-50wt% sulfuric acid and 0-20wt% water miscible organic solvent.In a preferred embodiment, the glass sheet may also be exposed to a strengthening process that istypically performed after the partial roughening phase.DECORATIVE LAYERA decorative layer (3) is disposed on at least a portion, preferably on the entire area, of the surface ofthe second face (22) of the glass sheet (2). By ‘entire area’, it is intended to mean that the majority ofthe surface is coated. The term ‘majority’ is intended to mean almost the entire surface area, preferably the entire surface area. However, it cannot be excluded that some insignificant part(s) of the surface are not covered. The term ‘insignificant’ would mean having no substantial impact on the dedicated performance.The decorative layer is a layer for imparting a decorative design to the glass article of the presentinvention. It comprises a background and at least one foreground creating together a decoration.Hence, the decorative layer refers to a layer that enhance the aesthetic appearance by includingpatterns and / or colors to create a visually appealing design. It can be deposited on either the air sideor the tin side of the glass sheet. Step (v) in Figure 4 and Figure 5 illustrates the deposition of thedecorative layer on the second face of the glass sheet wherein the entire area of the second surfacehas been covered.The deposition of the decorative layer can be achieved on the second surface before the partialroughening phase of the first surface, starting from the clear glass sheet, or after the first partialroughening phase or between multiple partial roughening phases if present, or after multiple partialroughening phases. In Figure 4 step (v), the decorative layer is disposed on the second surface (22) ofthe glass sheet after one partial roughening phase. In Figure 5 step (v), the decorative layer is disposedon the second surface (22) of the glass sheet after two partial roughening phases.The decorative layer is typically a layer having a lower transmittance of visible light than the glasssheet, in the visible spectral range from 380 nm to 780 nm. It exhibits typically a LTD4 lighttransmittance equal to or lower than 50% (LTD4 ≤ 50%); preferably equal to or lower than 30% (LTD4≤ 30%), preferably equal to or lower than 10% (LTD4 ≤ 10%), preferably equal to or lower than 5%(LTD4 ≤ 5%), more preferably equal to or lower than 2% (LTD4 ≤ 2%); to provide opacity.The light transmission LTD4 is determined according to the ISO9050 standard for a thickness of 4 mmat a solid observation angle of 2° (with illuminant D65) and for a wavelength range between 380 and 780 nm. As indicated above, one way to achieve the positioning of the roughened zone in a complementary fashion to the background and / or the foreground(s), is to create a numeric file containing the desireddecorative design on a software, such as Adobe Illustrator® or Adobe Photoshop®. This uniquenumeric file can be used both for the masking step (ii) in Figure 4 and steps (ii) and (iib) in Figure 5 ofthe partial roughening phase(s) to define the areas where the glass sheet should not be exposed tothe roughening process. The same unique numeric file can also be used for the decorative layerdeposition step (v) in Figure 4 and Figure 5. This unique numeric file describes indeed spatially on eachlocation of the glass sheet an exact color tone and transparency, that will be translated by the printingmachine into ink color and quantity for inkjet application, or in mesh design in case of screen printing.The ink used to create the decorative layer is not particularly limited. Suitable inks are inorganic typeinks containing a ceramic fired body or the like and / or organic type inks containing a dye or a pigmentand an organic resin can be used. Preferred are solvent based organic inks and more preferred areacrylic networks with color imparting pigments and even more preferred epoxy inks. Preferably, thedecorative layer is made of a single layer for ease of production and / or ease of laser decoatingtechnique. However, it can also comprise different sublayers, even of different materials.The deposition of the decorative layers might involve techniques such as screen printing, digitalprinting, or applying colored coatings to create unique designs. Printing methods include, but are notlimited to, inkjet, screen printing, and transfer decoration over the second face of the glass sheet. The deposition of the decorative layer can be achieved by an inkjet method. The inkjet method generally forms a decorative pattern while linearly moving the nozzle in one direction. The thickness of the decorative layer can be adjusted by controlling the discharge amount and the discharge interval of the ink discharged from the nozzle. The inkjet method ejects a minute droplet of ink in a liquid formfrom a nozzle in a pulsed manner to form a predetermined pattern on the second surface. Punctateink is formed in succession to form a decorative layer of a predetermined pattern comprising a background and at least one foreground. Thereafter, the ink is dried and baked, whereby the ink iscured to form a decorative layer. A UV-curable ink is used, where the bonding network is cured andsolidified by subjecting the ink to UV lamps just after the droplet deposition. The order in which eachlayer is formed is not limited thereto.The decorative layer can be applied on the glass in one layer using a digital printer. The printer applies4 types of inks : Cyan, Magenta, Yellow and Black. Each mix of these 4 inks can result in a custom color, based on the additive color mixing principle. Each drop of ink creates a colored dot that is applied from left to right on the entire width of the pattern, line by line from the top to the bottom of the glass, and instantly UV-cured. The entire pattern is obtained thanks to this accumulation of colored dots on the surface of the glass. When applied in 2 different sub-layers, the first sub layer can be a halftoned layer corresponding e.g. to the foreground of the decorative layer and a second sub-layer can be then applied on the first sub-layer on the entire area of the second face of the glass sheet and corresponds e.g. to the background of the decorative layer.Also suitable method to produce the decorative layer is a screen printing wherein a mesh is used totransfer ink onto a glass sheet substrate, except in areas made impermeable to the ink by ablocking stencil.In the transfer decoration method, the transfer sheet having the decorative layer is brought into closecontact with the glass substrate under heating conditions, thereby transferring the decorative layer to the glass substrate. The transfer sheet is formed by laminating a transfer base material (film), a coloring layer, and an adhesive layer. The transfer base material is formed of a resin material or the like to support the decorative layer and the optionally adhesive layer. The decorative layer is formed in a planar shape of the pattern to be transferred and is supported on the transfer substrate. The adhesive layer is a layer for bonding the decorative layer to the glass substrate, and is formed in thesame shape as the decorative layer. When no adhesive layer is used, an ink having an adhesiveproperty can be used as the decorative layer, or an adhesive can be additionally coated on the surfaceof the decorative layer. The glass sheet and the transfer sheet are positioned so that the secondsurface of the glass sheet and the adhesive layer of the transfer sheet face each other. Next, thetransfer sheet is heated to soften the transfer sheet by e.g; infrared rays, superheated steam, hotplates, and the like. The softened transfer sheet is shaped by the differential pressure and adheres closely to the second surface of the glass sheet. Finally, by peeling off the transfer base material of the transfer sheet from the glass sheet, the adhesive layer and the decorative layer remain on the second surface, so that the decorative layer can be transferred onto the second surface.The thickness of the decorative layer is typically comprised between 1μm and 50μm (1µm ≤ thickness≤ 50µm). Preferably to provide minimal light blocking, the decorative layer thicknesses is equal to orgreater than 2μm (≥ 2µm), preferably equal to or greater than 3μm (≥ 3µm), more preferably equal toor greater than 5μm (≥ 5µm). Preferably for ease of decoating, the decorative layer’s thickness is equalto or lower than 40µm (≤ 40µm), preferably equal to or lower than 30µm (≤ 30µm), preferably equalto or lower than 25µm (≤ 25µm), preferably equal to or lower than 20µm (≤ 20µm), preferably equal to or lower than 15µm (≤ 15µm), more preferably equal to or lower than 12µm (≤ 12µm). The minimum and maximum thicknesses are mean values of decorative layer thickness. Thickness is measured in the direction perpendicular to the glass sheet face. The thickness of the ink layer can be measured by any conventional method known by person skilled in that art such conventional optical microscope or profiling tools such as confocal microscope, white light interferometer or stylus profiler. When the preferred technique of inkjet printing is used, the thickness of such inkjet-printed decorative layer is typically from 1 µm to 5 µm whereas the thickness of a screen-printed decorative layer is typically from 5 µm to 20 µm. DEADFRONT ARTICLEThe decorative layer of the glass article of the present invention, can comprise one more perforatedzone(s). Perforated zone(s) can be used to create decorative patterns that are visible with incidentlight source and / or to provide visual access to the screen of display device. Any light source can besuitable in the form of display module as well as any light sources for producing graphics, icons, images, displays, etc. Exemplary displays include LED (light emitting diode) displays, a DLP (digital micromirror device) MEMS chip, LCDs (liquid crystal displays), OLED (organic light emitting diode) displays, transmissive displays and the like. Combinations of different perforated zones of different functions can be used to create appealing designs. In a preferred embodiment, the glass article of the present invention is used in combination with adisplay device to form a deadfront article. The deadfront article hides the display device in the Offmode and provides a see-through effect and visualisation of the display in the On mode. For suchapplication, it is required that the glass article is further processed to provide a see-through effect forvisual access to the display.The present invention further relates to a deadfront article comprising the glass article of the presentinvention and at least a display device having at least a screen. The second surface of the glass sheetis facing the display device. The perforated zone comprises discrete openings have a dimension lower than 200µm. The discreteopenings of the perforated zone allows to visualize at least part of the at least one screen of at leastone display device. When the glass article is used in combination with at least one display device having at least onescreen, the decorative layer has a perforated zone preferably positioned in a complementary fashionthe screen. By “positioned in a complimentary fashion", it is meant that the positioning of theperforated zone corresponds to the positioning of the screen. It is understood that the perforatedzone has substantially the same overall shape, perimeter shape, and / or design, and occupysubstantially the same relative surface area than the screen. By ‘substantially the same relative surfacearea’, it is herein understood that that the perforated zone covers at minimum 75% of the screen, preferably 90% of the screen, preferably at minimum 100% of the screen. It can be contemplated that the surface of the perforated zone extends over the surface of the screen, in particular when the perforated zone comprises a transition area. Furthermore, it is generally advantageous if the layer thickness of the decorative layer is not too large. This facilitates the removal by laser ablation. This is also advantageous for light transmission through the openings in the area of the decorative layer. If the decorative layer is too thick, the walls of the openings will have a corresponding length and will absorbs an unnecessary amount of light. On the other hand, decorative layers that are too thin are also unfavorable, in particular in view of ensuring a sufficient degree of light blocking. Preference is given to layer thicknesses of equal to or greater than more than 1 μm (≥ 1µm), equal to or greater than more than 2 μm (≥ 2µm) equal to or greater thanmore than 3 μm (≥ 3µm) and equal to or greater than more than 5 μm (≥ 5µm) that are generallynecessary to suppress the transmission of the light from the display panel. A thickness of the decorative layer of 25μm or less, it is possible to suppress the narrowing of the viewing angle. The minimum and maximum thicknesses given above are mean values of layer thickness. To facilitate further the removal by laser ablation, it is recommended that the thickness of the decorative layer (single layer or multiple layers) is uniform. By ’uniform’, it is meant that the decorative layer has a thickness standard deviation equal to or lower than the lowest of either (a) 3µm (≤ 3µm)or (b) 20% (≤ 20%) of the average thickness. Preferably, the decorative layer has a thickness such thatits standard deviation is equal to or lower than the lowest value of either (a) 2µm (≤ 2µm) or (b) 10%(≤ 10%), preferably 5% (≤ 5%), more preferably 2% (≤ 2%) of the average thickness. The thickness of the decorative layer is measured by a conventional a 3D optical confocal microscope. Within thedecorative layer, a line of 35 µm width is laser decoated across the length of the glass sheet to exposethe glass surface (decoated area) and provide the zero height reference. The laser decoating processis done with a laser source with pulse duration of 10 ps and wavelength of 1064nm. The laser beam has Gaussian profile. The laser beam is coupled to a galvo scanner equipped with an f-theta lens, which has a focal length of 100 mm. The laser beam diameter at the focus of the lens is approximately 20 um. The other laser parameters are as follows: pulse repetition rate 1 MHz, average power 16 W, scanning velocity 2750 mm / s. Attention should be paid not to damage the surface of the glass sheet. The microscope will map the height of an area 100 um x 100 um. This 100 µm x 100 µm area should include at least part of the decoated area to provide the height reference point. The thickness of thedecorative layer within the scanned area is estimated by the software integrated in the microscopeand provides a single thickness value. This measurement is repeated 10 times with a distance of 0.5 cm between each measurement. LASER DECOATINGLaser ablation is preferably used to produce such see-through effect within the decorative layer. Anapparatus for laser ablation is used to create a multitude of discrete openings or holes within thedecorative layer, which together define a perforated zone positioned at least above the screen of thedisplay device. The pattern of openings defines a perforated zone, allowing light that is incident ontothe decorative layer to pass through decorative layer and the glass sheet so that the perforated zonedemonstrate a light transmission (LTD4) typically comprised between 5% and 70% depending on theapplication. Preferably, the perforated zone has a light transmission LTD4 equal to or greater than10% (LTD4 ≥ 10%), more preferably a LTD4 equal to or greater than 15% (LTD4 ≥ 15%), LTD4 equal toor greater than 30% (LTD4 ≥ 30%). Preferably, the perforated zone has a light transmission LTD4 equalto or lower than 50% (LTD4 ≤ 50%).Figure 6 is a schematic cross-sectional view of one embodiment of the deadfront article (B) of thepresent invention that comprises a screen (6) of a display device and a glass article (A) wherein the first surface (21) of the glass sheet (2) comprises a roughened zone (1) and the second surface (22) comprises a decorative layer (3). Discrete openings (4) have been created in the decorative layer (3)to form the perforated zone (5) positioned in a complementary fashion to the screen (6).The invention is typically implemented so that the glass article is positioned above to the displaydevice such that the first surface (21) of the glass sheet (2) faces the user and the second surface (22)of the glass sheet faces the display. Hence, the decorative layer (3) is deposited on the second surface(22) of the glass sheet (2) that faces away from the user. Accordingly, the light from a light source willtherefore first pass through the decorative layer via the discrete openings (4), then through the glasssheet and will then exit from the first surface (21).Figure 6 illustrates an embodiment wherein the perforated zone covers 100% of the surface area ofthe screen.When the display is off, the discrete openings having such very limited size, allow the decorative layerto perfectly hide the screen of the display device. The combination of the roughening of the firstsurface of the glass sheet matching the decor of the decorative layer, provides a very pleasantaesthetic experience to the user. In contrast, when the display is on, the user sees perfectly the imagedisplayed on the screen via the perforated zone, while hiding the decorative layer. The size and position of the discrete openings are selected so that in a backlit state the image displayed by thescreen is perfectly visible, while a sufficient dead front effect is established in the off state.Typically, the apparatus for laser ablation comprises a laser and a device for guiding the laser beam emitted by the source over the surface of the glass substrate coated with the decorative layer. For example a galvanometer scanner can be employed as the device for guiding the laser beam over thesurface. As known by those skilled in the art that, decoating can be done with one or multiple laserbeams simultaneously to increase the processing speed. It can be achieved either by splitting one laser beam or using multiple laser sources and multiple scanners. The splitting of the laser beam can happenbefore or inside the scanner head. Means for displacing the glass sheet may be provided alternativelyor in addition to a galvanometer scanner. Particularly suitable for this purpose is an X-Y table, also referred to as a cross table. In such an embodiment, the laser beam can be hold stationary and theopenings with the desired shape can be introduced into the decorative layer by moving the X-Y tablewith the glass sheet substrate placed thereon. In order to ensure consistent high accuracies, it is alsopossible to use a synchronized scanning and displacing apparatus. In this case, the movement of table or another means for displacing the glass sheet is synchronized with the deflection of the scanner, e.g. galvanometer scanner. For focusing the laser beam on the surface in order to achieve the highest possible intensity, appropriate focusing optics may be provided. Focusing optics can be arranged downstream ofgalvanometer scanner. However, it will be apparent to those skilled in the art that other configurationssuitable to focus the laser beam onto the glass sheet are likewise possible. In order to achieve short focal lengths it is favorable to arrange the focusing optics behind the galvanometer scanner as seen inthe beam direction. A focusing optical system, in particular a lens or group of lenses or a focusing mirror with a focal length of less than 300 mm, is preferred. For locally removing the decorative layer to create discrete openings which extends through decorative layer, the device for guiding the laser beam moves the laser beam over the surface, and the laser is adjusted so that the ablation threshold of the material of decorative layer is exceeded and thus the decorative layer is removed at the point of impingement. However, the output power of the laser is adjusted so that the ablation threshold of the glass sheet, is not reached so that only the decorative layer is removed. For glass the ablation threshold for a laser wavelength of 1064 nm is approximately 5.2*1017 W / m2. It is therefore advantageous if the materials of the glass substrate and of the decorative layer are selected so that the ablation threshold of the material of the glass substrate is higher than the ablation threshold of the decorative layer, in particular in the infrared spectral range, more particularly at a wavelength of 1064 nm. The laser beam guiding device is controlled by a control device which may for instance execute a program that translates the shape and location of the pattern feature into control signals by means of which the laser beam is moved over the surface by the laser beam guiding device. Preferably, the control device also controls the laser, in particular with regard to switching on and off and laser emmision. According to one exemplary embodiment, a pulsed laser was selected which can be sufficiently wellfocused to ablate dots of the dimensions mentioned before. This can be achieved with a neodymium-YAG laser with a wavelength of 1064 nm and a pulse length of 10 ps. A scanner with optics having afocal length of 255 mm can be employed. The M2 factor is less than 1.4, preferably less than 1.2. Thetubular beam has a diameter of 12 mm. Average output power 50W at 200 kHz is typically reduced toabout 4 W. Other lasers may also be used. In particular a laser with a wavelength of 532 nm and apulse length in the range 1 – 50 ns is advantageous : the smaller wavelength allows for better focusingand the longer pulse length will prevent the material to become stained which is disadvantageous in case of light colored layer. Furthermore, lasers in the ns range have a distinct cost advantage over lasers in the short ps range.Figure 7 is a schematic cross-sectional view of a glass article (A) comprising a glass sheet (2) withroughened zone (1) on its first surface (21) and a decorative layer (3) on its second surface (22).Discrete openings (4, 4b) have been introduced into the decorative layer (3).In the example shown on the right of the glass article in Figure 7, the wall of the discrete opening 4 issubstantially perpendicular to the glass sheet (2). As illustrated on the left, the discrete opening (4b)may taper from the outer surface of the decorative layer (3) toward the second surface (22) of the glass sheet (2), i.e. being wide at one end and narrowing down at the other end. Such tapered discreteopening may be advantageous for introducing an opening even into rather thick decorative layers byrepeated or stepwise ablation. Preferably, however, the angle α between the wall of discrete openingand the surface normal of the glass sheet is smaller than 20°, preferably smaller than 15°. This angleis the mean angle of the wall which can be easily determined trigonometrically from the ratio of thewidth of the opening at the substrate (w) to the width at the surface of decorative layer (wt) and thethickness of decorative layer. It is recognized in the art that laser ablation may cause a dark discoloration of the decorative layer. If the decorative layer itself is dark, such discoloration and hence the openings will remain invisible. However, this is different for decorative layers having a light color hue. In this case, the dark discoloration may be visible at the edges of the opening. This can be counteracted by adjusting the pulse frequency of the laser and the rate at which the laser beam is directed over the decorative layer such that the points of incidence of the laser pulses do not excessively overlap each other, which results in the desired dot pattern. According to this embodiment of the invention, it is thus even possible to produce openings that are invisible to a viewer in a decorative layer that has a color with an L value in the L*a*b color space of at least 20, preferably at least 40, more preferably at least 50. The L value of the color of the opaque decorative layer may for example be determined using a spectrophotometer. The value relates to an exposed surface of the decorative layer, that means it is not a color value measured across the glass. According to a preferred embodiment, a top-hat profile of the laser beam is used in order to minimize the thermal impact in the peripheral area of the opening to be produced so as to avoid the staining effect. In this case, the edge regions of the initially Gaussian beam which have not enough energy for ablating the ink but yet have enough energy to heat the decorative layer to an extent to cause discoloration thereof, are eliminated. Another advantage of a top-hat profile is better contour definition, since a Gaussian profile does not permit to remove multi-layered systems with sharp contours, although this effect causes blurring on a micrometer scale that is hardly visible or not visible at all to the eye. Laser decoating is typically achieved on the second surface of the glass sheet, i.e. directly on the decorative layer. However, it has been surprisingly found that laser decoating on the opposite side i.e.the first surface (21) of the glass sheet is much more effective. The discrete openings (4, 4b) have a tubular shape across the decorative layer (3) as illustrated in Figure 7. To create the discrete opening (4, 4b), the laser beam will vaporize a very small region close (4i, 4bi) to the second glass surface (22) that will push away the remaining material. Laser decoating from the first surface of the glass sheet is therefore faster and more efficient. 1. Discrete openingsThe decorative layer disposed on the second surface of the glass sheet has a perforated zone typicallypositioned in a complementary fashion to the screen. Preferably, the decorative layer covers theentire surface of the second surface of the glass sheet. By ‘discrete opening’, it is commonly understood that, each discrete opening has one of the dimension (diameter, longest axis or width) in the micrometer scale, typically lower than 200µm. Dimension is commonly understood as the diameter in case of circular shape, longest axis in case of elliptical shape or width in case of lines. The discrete openings are distinct from one another in the perforated display area. Discrete openings are commonly understood as discrete openings through the entire thickness of the opaque layer. The discrete openings can be created via a single or multiple laser pulses. The discrete openings have a dimension equal to or lower than 200µm, preferably equal to or lower than 100μm, preferably equal to or lower than 85μm, preferably equal to or lower than 60μm, preferably equal to or lower than 30 μm, preferably equal to or lower than 20 μm, more preferably equal to or lower than 10 μm. When the glass article of the present invention is used as a dead front article, is it further preferred that discrete openings have a dimension equal to or lower than 60µm, preferably equal to or lower than 30µm, preferably equal to or lower than 20µm, more preferably equal to or lower than 10µm. Dimension is typically equal to or greater than 1µm, preferably greater than 3µm more preferably greater than 5µm. Indeed, it has been found that too small discrete openings can interact with thelight and create artefacts as well as extending the time of the laser decoating step. The width of thediscrete opening is measured at the bottom of the opaque layer or at the glass sheet surface exposed in the opening. The discrete openings or holes generally have the shape of circular dots. However, the discreteopening may as well have the shape of elongated ovals or other geometries. Preferably, the holeshave the shape of lines. Indeed, it is preferred to produce openings having the shape of long straight lines, positioned parallel to one other. Discrete openings in the shape of lines are preferred becauseof their faster processing speed. Preferably, the discrete openings in the shape of lines have a width of less than 30μm, preferably less than 20µm, more preferably less than 10µm. For long straight lines, it is advantageous to use a polygon scanner, because when stitching long lines a small offset might quickly be produced. Due to the offset, the line would become wider at the crossing point and therefore would appear much brighter at this point when backlit. These discrete dots form a dot pattern as a whole. The spacing between the individual discrete openings should be less than 200μm, preferably less than 150 μm, more preferably less than 100 μm. Typically above 7µm, preferably above 10µm, more preferably above 15µm. The spacing distance is measured center to center of two adjacent discrete openings. For discrete openings in the form of ovals or lines, the spacing distance in measured center to center in the direction normal to the length of the line.A further process parameter is the percentage of the ablated surface area in relation to the totalsurface area. This percentage is described by a ratio of ablated surface area to non-processed surface area within the perforated zone, i.e. the core area. In the case of dot-shaped discrete openings, the ratio of ablated surface area to non-processed surface area is determined according to the formula : R2* 100% / a2; wherein r is the radius of a dot and a is the spacing between two dots. In the case of discrete openings having a different shape, the percentage of the ablated surface area in relation to the total surface area is determined by the ratio of the summed surface areas of the discrete openings to the surface area of the non-processed surface within the perforated zone. Such areas will appear lighter or darker to the viewer, depending on the underlying layer. However, areas with an ablated percentage surface area of less than 1%, in particular less than 0.5% of the total surface area are rather uninteresting, since light applications will appear slightly pixelated. Therefore, in order to obtain an area with the highest possible resolution, surface with an ablated percentage surface area of more than 0.8%, preferably more than 1%, most preferably more than 1.5% have to be selected. It has been found that in some applications, areas with an ablated percentage surface area of more than 0.5% of the total surface area can create a different color appearance. In order to mitigate or eliminate the different color appearance, a transition area can be created in which the ablatedpercentage surface area is reduced versus the core area by less than 2% per mm, preferably less than1% per mm, more preferably less than 0.5% per mm. In this case, the reduction may be accomplished so that the ablated percentage surface area is preferably reduced to less than 0.5% of the total surface area at the side of the transition region adjoining the non-ablated area. The value of the gradient ofthe percentage surface area in the transition area may either be constant in the entire transition area or may vary. In case of a varying gradient, the aforementioned limit values refer to a mean value averaged along the gradient over the entire width of the transition area.Therefore, in a preferred embodiment, a transition area is created within the perforated zone alongits periphery, in which further dots are ablated so that the percentage surface area, determined bythe ratio of ablated surface area to non-processed surface area is lower on average within the transition area than within the core area. The percentage of the total ablated surface area comprisingthe display area and the transition area can represent 10% up to 70% of the total surface area. Suchpercentage surface areas can be achieved with smaller discrete openings or with larger spacings of the discrete openings. If, however, the glass sheet is provided with a very light color or very dark color decorative layer, the described measure might not be sufficient, since under these conditions a sufficient deadfront effectis possibly not created. For example, lines having a width of 10 μm may clearly be visible especiallyagainst a light decorative layer. It has been found that the deadfront effect can be improved by a technique known as dithering which is used, for example in computer graphics, to create the illusion of a greater color depth, for example when images have to be reproduced with reduced color depth due to technical limitations. In this case, the lacking colors are approximated by a specific arrangement of the pixels from available colors. In this way, hard color transitions are avoided.For ease of processing, the discrete openings of the perforated zone typically form a regular pattern,i.e. regular dimension and / or regular spacing. The spacing distance is characterised by an average spacing and a standard deviation. Regular spacing means that its standard deviation is equal to or lower than 10%, preferably equal to or lower than 5%, more preferably equal to or lower than 2% of the average spacing. Dimension is characterised by an average dimension and a standard deviation. Regular dimension means that its standard deviation is equal to or lower than 10% preferably equal to or lower than 5%, more preferably equal to or lower than 2% of the average dimension. MESUREHowever such regular decoating patterns cause optical artefacts such as diffraction and / or the Moiréeffect when the glass article is used in combination with a light source such as a screen. Therefore, itis preferable that the first surface comprises further an optical roughened zone positioned in a complementary fashion to the perforated zone; and the glass sheet within that optical roughened zone, provides a clarity equal to or lower than 80%, preferably equal to or lower than 50%, more preferably equal to or lower than 30%. Such embodiment of the present invention achieves the combined effect of efficient and cost effective laser decoating processing of the regular pattern whilea see-through zone of superior quality and rendering by avoiding optical artefacts. Clarity is measuredwith the parameters and device (BYK Haze-gard i) required in ASTM standard D1003 with illuminantC. “Clarity” corresponds to the portion of light that is transmitted through the glass and scattered by the final glass surface away with a different angle than the direct transmission direction (similar or parallel to the incident light rays direction) within a solid angle of 2.5° away from the direct transmission direction. 2. Cleaning stepRegardless of the layer thickness, the material removed by the laser might fall back on the surface inthe form of dust. This dust can affect the ongoing decoating process. Furthermore, if the glass articleis intended to be bonded with a display device, such dust can be detrimental. Ideally, the laserdecoating device should be coupled with an exhaust pipe, which extracts the dust while they are inthe air. Ideally, the glass article is washed after decoating to completely remove the contamination.The washing can consist of multiple steps using water and detergent. An additional ultrasonic washing step can be included to improve the cleaning efficiency. The final step is to rinsed the glass with pure or di-ionized water. GENERAL 1. Glass sheet productionThe glass article of the present invention can be manufactured from a larger mother glass substrateby the following method described in WO2017 / 038853 filed by Asahi Glass Co LTD under applicationnumber WO2016JP75415 on 31 August 2016 incorporated herein by reference. This method comprises: (1) a step for preparing a glass material which has a first main surface and a second main surface, said main surfaces opposing each other; (2) a step for laser-irradiating the first main surface of the glass material so that an in-plane void area, wherein a plurality of voids are aligned, is formed in the first main surface and, at the same time, a plurality of inner void rows consisting of one or more aligned voids are formed from the in-plane void area toward the second main surface; and (3) a step for subjecting the glass material, in which the inner void rows are formed, to a chemical strengtheningtreatment. Please refer to the step of providing the glass material : Step 110 described in

[0034] to

[0041] , to the step of laser filamentation : Step 130 described in

[0042] to

[0078] , to the step of chemical strengthening : Step 120 described un

[0079] to

[0093] and to the separattion step : step 140described in

[0094] to

[0133] from the corresponding EP publication EP3345877A, all incorporated herein by reference.The method may further comprise a step of cold bending after the step of separating. The cold bendingis particularly appreciated for bending glass articles for interior and exterior glazing part for automotive such as glass console, dashboard, trim element for door, pillars, windshields, side windows, back windows, sun roofs, separation walls,… Cold bending is any assembling operation in which an initially flat thin glass element is deformed into a final non-flat configuration in the assembly.The thin glass in the final assembly presents a permanent unbalance of surface stresses between itstwo main surfaces. The assembling operation can be any kind of technology allowing to keep the thin glass in a non-flat configuration: gluing, laminating, mechanical retainers (screws, rivet, casing,…),...,applied either at punctual places or on the full surface. Preferably, for reasons of weight and to beable to cold bend easily the thickness of the glass article may be from 0.1 to 2.2 mm, 0.5 to 2.1 mm.When used as a dead front article, the glass article typically covers display devices having a screendisplay diagonal of from 2.5cm to 25cm, preferably from 8 cm to 40 cm. Typically, the thickness of the glass sheet ranges from 0.5 to 25 mm. Preferably, the glass sheet has a sheet thickness of 2.0 mm or more, preferably of 3.0 mm or more, preferably of 3.5 mm or more, preferably of 4.5 mm or more; preferably of 5.5 mm or more, preferably of 7.5 mm or more, preferably of 9.5 mm or more and more preferably of 11.5 mm or more. Typically, the sheet thickness is of 20mm or less, preferably 15 mm or less. For the dead front article of the present invention, the glasssheet is preferably a thin glass to reduce the light optical path and therefore the reduce light reflection and improve clarity on diffuse areas. In a preferred dead front embodiment the thickness of the glass sheet is equal to or lower than 2mm, preferably equal to or lower than 1.6mm, more preferably equalto or lower than 1.3mm and even more preferably equal to or lower than 0.7mm.Glass composition The composition of the glass is preferably appropriate to be chemically tempered and for transportation applications. The glass sheet may be a soda-lime-silicate glass, an alumino-silicate glass, an alkali-free glass, a boro-silicate glass, etc. Preferably, the glass sheet of the invention is made of a soda-lime glass or an alumino-silicate glass. The glass sheet according to the invention may be a glass sheet obtained by a floating process, a drawing process, a rolling process or any other process known to manufacture a glass sheet starting from a molten glass composition. The glass may be clear glass, extra-clear glass or colored glass, comprising one or more component (s) / colorant(s) in an appropriateamount as a function of the effect desired. Colored glass includes grey, green or blue float glass. Insome circumstances, colored glass may be advantageous to provide for appropriate and desired color of the final glazing, within the limitations of applicable legislation. Soda-lime-silicate glass relates to any mineral glass which comprises the following components in weight percentage, expressed with respect to the total weight of glass (Comp. A). More preferably, the glass composition (Comp. B) is a soda-lime-silicate-type glass with a base glass matrix of the composition comprising the following components in weight percentage, expressed with respect to the total weight of glass. Comp. A Comp. BSiO2 40 - 78% 60 - 78 wt%Al2O3 0 - 18% 0 - 8 wt%, pref 0 - 6 wt%B2O3 0 - 18% 0 - 4 wt%, pref 0 - 1 wt%Na2O 0 - 20% 5 – 20 wt%, pref 10 - 20 wt%CaO 0 - 15% 0 - 15 wt%, pref 5 - 15 wt%MgO 0 – 15% 0 – 12 wt%, pref 0 - 8 wt%K2O 0 – 15% 0 – 12 wt%BaO 0 – 5% 0 – 5 wt%, pref 0 - 1 wt%.Other advantageous glass compositions for the mineral glass of the present invention, comprise the following components in weight percentage, expressed with respect to the total weight of glass: Comp. C Comp. D Comp. E65 ≤ C ≤ 78 wt% 60 ≤ SiO2 ≤ 78 % 65 ≤ SiO2 ≤ 78 wt%5 ≤ Na2O ≤ 20 wt% 5 ≤ Na2O ≤ 20 % 5 ≤ Na2O ≤ 20 wt%0 ≤ K2O < 5 wt% 0.9 < K2O ≤ 12 % 1 ≤ K2O < 8 wt%1 ≤ Al2O3< 8 wt%, 4.9 ≤ Al2O3 ≤ 8 % 1 ≤ Al2O3 < 6 wt%pref 3 < Al2O3≤ 6 % 0≤ CaO < 4.5 wt% 0.4 < CaO < 2 % 2 ≤ CaO < 10 wt%4 ≤ MgO ≤ 12 wt% 4 < MgO ≤ 12 % 0 ≤ MgO ≤ 10 wt%(MgO / (MgO+CaO)) ≥ 0.5, pref K2O / (K2O+Na2O): 0.88 ≤ [MgO / (MgO+CaO)] < 1.0.05 - 0.7.According to certain embodiments of the invention, the glass may have a composition comprising a total iron (expressed in terms of Fe2O3) content ranging from 0.002 to 0.06 weight%. A total iron(expressed in the form of Fe2O3) content of less than or equal to 0.06 weight% makes it possible to obtain a glass with almost no visible coloration. Preferably, the composition comprises a total iron (expressed in the form of Fe2O3) content ranging from 0.002 to 0.04 weight%. More preferably, the composition comprises a total iron (expressed in the form of Fe2O3) content ranging from 0.002 to0.020 weight%. Advantageously, for extra-clear glass, the composition comprises a total iron(expressed in the form of Fe2O3) content ranging from 0.002 to 0.015 weight% for the lowest visible light absorption. 2. Glass strengtheningThe glass sheet according to the invention can advantageously be strengthened : heat strengthenedglass, a thermally toughened glass, or a chemically strengthened glass. Heat strengthened glass is heat treated using a method of controlled heating and cooling which placesthe glass surfaces under compression and the glass core under tension. This heat treatment methoddelivers a glass with a bending strength greater than annealed glass but less than thermally toughened safety glass. Thermally toughened safety glass is heat treated using a method of controlled heating and coolingwhich puts the glass surface under compression and the glass core under tension. Such stresses causethe glass, when impacted, to break into small granular particles instead of splintering into jagged shards. Chemical strengthening of a glass article is a heat induced ion-exchange, involving replacement of smaller alkali sodium ions in the surface layer of glass by larger ions, for example alkali potassium ions. Increased surface compression stress occurs in the glass as the larger ions “wedge” into the small sites formerly occupied by the sodium ions. Such a chemical treatment is generally carried out by immerging the glass in an ion-exchange molten bath containing one or more molten salt(s) of the larger ions, with a precise control of temperature and time. 3. Additional layersAccording to the application, intended use and / or properties desired, various layer(s) / treatment(s)can be deposited / done on one or both faces of the glass article or glass sheet.According to one embodiment of the invention, the glass article can be coated with at least onetransparent and electrically conducting thin layer. A transparent and conducting thin layer accordingto the invention can, for example, be a layer based on SnO2:F, SnO2:Sb or ITO (indium tin oxide), ZnO:Alor also ZnO:Ga. According to another embodiment of the invention, the glass article can be coatedwith at least one antireflection layer. This embodiment is advantageous in the case of use of the glassarticle of the invention as front cover of a screen. An antireflection layer can, for example, be a layerbased on porous silica having a low refractive index or it can be composed of several layers (stack), in particular a stack of layers of dielectric material alternating layers having low and high refractiveindexes and terminating in a layer having a low refractive index. According to still another embodimentof the invention, the glass article has an antibacterial layer / treatment. Advantageously, according tothis embodiment, the glass article has said antibacterial layer / treatment on the second texturedsurface. For example, such an antibacterial treatment could be a diffusion of silver ions in the bulk of the glass sheet close to the outer surface.Advantageously, according to one embodiment, the glass article has an anti-fingerprint layer and / orand / or easy to clean coating and / or treatment on the first surface of the glass sheet. In a preferredembodiment, the glass article has at least one anti-fingerprint layer / treatment so as to reduce orprevent fingerprints from registering. Anti-fingerprint (AFP) coating is a specialized surface treatment designed to reduce the visibility of fingerprints and smudges on surfaces. It is achieved by incorporating hydro- / oleophobic properties, making the surface hydrophobic (repelling water) and oleophilic (attracting oils), which minimizes fingerprint marks An anti-fingerprint coating may prove useful to avoid interferences of light from the viewing area. The fingerprints will be less visible from the outside, and provide for improved aesthetics. Examples of anti-fingerprint coatings include fluorinated polyethers, silanes, fluoro-silanes, siloxanes, fluorinated siloxanes, phosphonates, fluoro- organic compounds, perfluorocarbon-containing materials, and the like. These anti-fingerprint coatings are known in the art. METHOD FOR PRODUCING and USE The present invention also relates to methods for producing the glass article and for the producingthe dead front article of the present invention. The method comprises:a) providing a glass sheet comprising a first surface and a second surface opposite to the firstsurface; b) forming a decorative layer comprising a background and at least one foreground, on atleast a portion, preferably on the entire area, of the second surface of a glass sheet;c) forming at least a roughened zone on the first surface of the glass sheet wherein the atleast roughened zone is positioned in a complementary fashion to the background and / or to the least one foreground of the decorative layer; and d) If necessary, repeating step c) for each roughened zone to be formed.In a preferred embodiment, step c) wherein the at least one roughened zone is created, rougheningis achieved via an etching process comprising at least the steps of :i. disposing an etching resistant mask on a portion of the first surface of the glass sheet ina complementary fashion to the background or to the at least one foreground, of thedecorative layer; ii. etching the first surface of the glass sheet;iii. removing the etching resistant mask.Steps b) and c) can be performed in any process order. When the decorative zone further comprises a perforated zone, in particular to produce the deadfrontarticle of the present invention, the method further comprises the steps of:e) Creating, preferably by laser ablation, a perforated zone within the decorative layervia discrete openings having a dimension lower than 200µm.The laser ablation Step e) can be performed as soon as decorative layer deposition step b) has occurred. As described above, typically, the discrete openings will be typically created by directing a pulsed laser beam onto the decorative layer to locally remove the decorative layer by ablation, repeatedly at different locations, thereby producing a pattern of a multitude of discrete openings defining aperforated zone in the decorative layer above the screen of the display device so that the decorativelayer becomes semi-transparent in the perforated zone. The present invention also relates to the use of the glass article and of the dead front article for car interior application, home appliances and / or integrated interactive display. The person skilled in the art realizes that the present invention is by no means limited to the preferred embodiments described above. On the contrary, many modifications and variations are possible within the scope of the appended claims. It is further noted that the invention relates to all possiblecombinations of features, and preferred features, described herein and recited in the claims or in thedescribed embodiments. It is well understood by persons skilled in the art that, as used herein the terms “a”, “an” or “the” means at least “one” and should not be limited to “only one” unless explicitly stated otherwise. As used herein, spatial or directional terms, such as "inner", "outer", "above", "below", "top", "bottom", and the like, relate to the invention as it is shown in the drawing figures. However, it is to be understood that the invention can assume various alternative orientations and, accordingly, such terms are not to be considered as limiting. Further, all numbers expressing dimensions, physical characteristics, processing parameters, quantities of ingredients, reaction conditions, and the like, used in the specification and claims are to be understood as being modified in all instances by the term "about". Accordingly, unless indicated to the contrary, the numerical values set forth in the following specification and claims are approximations that can vary depending upon the desired properties sought to be obtained by the present invention. In the following description, unless otherwise specified, expression “substantially” mean to within 10%, preferably to within 5%. Furthermore, the terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a sequence, either temporally, spatially, in ranking or in any other manner. It is to be understood that the terms so used are interchangeable under appropriate circumstances and that the embodiments of the invention described herein are capable of operation in other sequences than described or illustrated herein. When it is described that a constituent element (e.g., a first constituent element) is "(functionally or communicatively) coupled to" or is "connected to" another constituent element (e.g., a second constituent element), it should be understood that the constituent element may be directly connectedto the another constituent element or may be connected to the another constituent element throughanother constituent element (e.g., a third constituent element). EXAMPLES 1. First partial roughening phaseIn order to achieve the positioning of the roughened zone in a complementary fashion to thebackground and / or the foreground(s), a numeric file containing the desired decorative design iscreated on a software such as Adobe Illustrator® or Adobe Photoshop®. This unique numeric file willbe used both for the partial roughening phase to define the areas where the glass sheet should not beexposed to the roughening process, and for the decorative layer deposition.Please refer to the first 4 steps shown in Figure 4. An etch-resisting mask is applied on the first surfaceof the glass sheet by any techniques, preferably by inkjet printing or screen printing (Step (ii)). Themask is indeed an etch-resistant material, such as an epoxy ink or acrylic ink, either IR-curable or UV-curable; or is a mechanical barrier. The pattern of the mask corresponds to the portion of the firstsurface that should not be roughened (black area). The pattern of the mask corresponds to theforeground or background of the decorative layer that will be applied in a separate step on the second surface of the glass sheet. The glass sheet is exposed to an etching solution or to a sandblasting process or any glass texturingtechnology (Step (iii)). The roughening will occur only in the zones that are not protected by theprevious masking step (grey area). The mask is removed by a mechanical action (brushes) or water jetor chemical cleaning (dissolution of the mask) (Step (iv)).For each example below, a glass sheet having a thickness of 0.7 mm thickness (10cm x 10cm) waswashed with an aqueous detergent and dried. A mask was printed on the first surface by inkjet printingwith a specific pattern corresponding to the background of the decorative layer (To be applied in asubsequent step). The masking ink is an acrylic ink, UV curable, such as “SuperImage” inks from OCE.For examples1, 2, 3(B), a masking tape was applied to the full area of the second surface of the glasssheet in order to protect it during the etching process. Then, the glass was dipped in 200 mL of an acid-etching solution at 20-25°C during a time, t. The glass sheet is then removed from the etching bathand immediately washed with an aqueous detergent. Different etching solutions during different periods of time were used.The printed mask and eventually the masking tape, were removed by hot water and mechanical action(sponge or soft brush) directly after rinsing. The glass sheet is of soda-lime-silicate glass (SLS) sold under the tradename Sunmax or Sunmax Premium by AGC glass Europe. The acid-etching aqueous solution comprises KHF2at 1.5 mol%,SnCl2 at 0.25 mol%, HF at 1.0 mol% and HNO3 at 0,5 mol%. The etching time is 30 seconds. Theroughened zone is positioned in a complementary fashion to the foreground and is characterized bytextures features: Ra(zone) of 80nm and Rsm(zone) of 12µm. Typically, the non-roughened portion of thefirst surface has a Ra(border) = 0,5nm and Rsm(border) = 0µm (assumption for mathematical computationeasiness), the roughness difference between roughened and non-roughened zones is ∆Ra = 79,5nm(│Ra(zone) - Ra(border)│ = 79,5 nm) and a ∆Rsm = 12µm (│Rsm(zone) - Rsm(border)│ = 12µm).The glass sheet is a soda-lime-silicate glass (SLS) sold under the tradename Sunmax or Sunmax Premium by AGC glass Europe. The acid-etching aqueous solution comprises : KHF2at 1.5mol%, SnCl2 at 0.25 mol%, HF at 1.0 mol% and HNO30.5 mol%. The etching time is 90 seconds. Theroughened zone is positioned in a complementary fashion to the foreground and is characterized bytextures features: Ra(zone) of 98nm and Rsm(zone) of 25µm. Typically, the non-roughened portion of the first surface has a Ra(border) = 0,5nm and Rsm(border) = 0µm (assumption for mathematical computation easiness), the roughness difference between roughened and non-roughened zones is ∆Ra = 97,5nm(│Ra(zone) - Ra(border)│ = 97,5 nm) and a ∆Rsm = 25µm (│Rsm(zone) - Rsm(border)│ = 25µm).Example 3 (A): A glass sheet having a type of alumino-silicate glass composition sold under theTrademane ‘Falcon Glass’ by AGC glass Europe was used. The roughnening is achieved by sandblastingafter mask printing. The sand used is a silicone-carbide based sand, with a 80 to 400 grit. Theroughened zone is positioned in a complementary fashion to the foreground and is characterized bytextures features: Ra(zone) of 350nm and Rsm(zone) of 90µm. Typically, the non-roughened portion ofthe first surface has a Ra(border) = 0,5nm and Rsm(border) = 0µm (assumption for mathematical computation easiness), the roughness difference between roughened and non-roughened zones is∆Ra = 349,5nm (│Ra(zone) - Ra(border)│ = 349,5 nm) and a ∆Rsm = 90µm (│Rsm(zone) - Rsm(border)│ = 90µm)Example 3(B): The alumino-silicate type glass composition sold under the Trademane ‘Falcon Glass’ by AGC Glass Europe was used. The acid-etching aqueous solution comprises : NH4HF2at 4.5 mol%, SnCl2at 0.25 mol%, HF at 4.0 mol% and HNO35 mol%. The etching time is 60 seconds. The roughened zone is characterized by textures features: Ra(zone) of 31nm and Rsm(zone) of 14µm. Typically, the non- roughened portion of the first surface has a Ra(border) = 0,5nm and Rsm(border) = 0µm (assumption for mathematical computation easiness), the roughness difference between roughened and non-roughened zones is ∆Ra = 30,5nm (│Ra(zone) - Ra(border)│ = 30,5 nm) and a ∆Rsm = 14µm (│Rsm(zone) -Rsm(border)│ = 14µm). Example 4: is similar to example 3(A), but the mask printing step is performed by silk screen printing, using an epoxy ink IR curable, cured in a static oven at 180°C for 15 minutes. 2. Partial roughening multiple steps processIn addition to the first partial roughening phase, a second or even multiple partial roughening phase(s)can be achieved. Please refer to the steps described in Figure 5.A second (etch-) resisting mask is applied on the first surface of the glass sheet by any techniques,preferably by inkjet printing or screen printing (Step (iib)). The mask material can be as an epoxy inkor acrylic ink, either IR-curable or UV-curable; or is a mechanical barrier. The pattern of the maskcorresponds to the portion of the first surface that should not be roughened (black area). The secondpartial texturing phase can be used to create: ^a roughened zone in a complementary fashion to the background of the decorative layer whenthe first partial roughening phase aimed at roughening a zone of the first surface of the glasssheet that was complementary to the foreground of the decorative layer. Hence, the pattern of the second mask corresponds to the foreground of the decorative layer. The absolutedifference between Ra(fore) and Ra(back) should be at least 25 nm (│Ra(fore) - Ra(back)│ ≥ 25 nm).^ a roughened zone in a complementary fashion to the foreground of the decorative layer whenthe first partial roughening phase aimed at roughening a zone of the first surface of the glass sheet that was complementary to the background of the decorative layer. Hence, the pattern of the second mask corresponds to the background of the decorative layer. The absolute difference between Ra(fore) and Ra(back) should be at least 25 nm (│Ra(fore) -Ra(back)│ ≥ 25 nm). ^In embodiment wherein the decorative layer comprises 2 foregrounds, a roughened zone in acomplementary fashion to the second foreground of the decorative layer when the first partial texturing phase aimed at roughening a zone of the first surface of the glass sheet that was complementary to the first foreground of the decorative layer. Hence, the pattern of thesecond mask corresponds to the first foreground and the background of the decorative layer. The absolute difference between Ra1(fore)and Ra2(back)should be at least 25 nm (│Ra1(fore)- Ra2(back)│ ≥ 25 nm). ^Other embodiments can be contemplated with several roughening zones corresponding tothe background and / or multiple foregrounds depending on the decor of the decorative layer. The glass sheet is exposed to an etching solution or to a sandblasting process or any glass texturingtechnology (Step (iiib)). The roughening will occur only in the zones that are not protected by thesecond masking step. The mask is removed by a mechanical action (brushes) or water jet or chemicalcleaning (dissolution of the mask) (Step (ivb)).Some of the etched glass sheets of examples 1 to 4 were taken to a second partial roughening process.The second mask is printed as described in the above examples, and the first surface of the glass sheetis exposed to an etching solution (or sandblasting), with different process conditions (different etchingsolution formulation or different sand). is performed on the glass sheet of example 3(A) wherein the first roughening zone ischaracterized by Ra(zone)of 350nm and Rsm(zone)of 90µm. The acid-etching aqueous solution comprises NH4HF2at 4.5 mol%, SnCl2at 0.25 mol%, HF at 4.0 mol% and HNO35 mol%. The etching time is 60seconds. The roughened zone is positioned in a complementary fashion to the second foreground andis characterized by textures features of Ra2(zone) of 31nm and Rsm2(zone) of 14µm. The roughnessdifference between the two roughened zones is ∆Ra = 319 nm (│Ra(zone) – Ra2(zone )│ = 319 nm) and a∆Rsm = 76 µm (│Rsm(zone) – Rsm2(zone)│ = 76 µm).achieved on the glass sheet of example 2 wherein the first roughening zone ischaracterized by Ra(zone) of 98nm and Rsm(zone) of 25µm. The second acid-etching aqueous solutioncomprises HF at 2.5 mol% and HNO3 at 2.5 mol%. The etching time is 90 seconds. The roughened zoneis positioned in a complementary fashion to the background and is characterized by textures featuresof Ra(back) of 72nm and Rsm(back) of 27µm. The roughness difference between the two roughened zonesis ∆Ra = 26 nm (│Ra(zone) - Ra(back)│ = 26 nm) and a ∆Rsm = 2 µm (│Rsm(zone) - Rsm(back)│ = 2 µm).consists of exposing the first surface of the glass sheet of example 3(B) wherein the firstroughening zone is characterized by Ra(zone) of 31nm and Rsm(zone) of 14µm, to a sandblasting process,using aluminum oxide with a 400-600 grit. The roughened zone corresponds in a complementaryfashion to the background and is characterized by textures features of Ra(back) of 340nm and Rsm(back)of 95µm. The roughness difference between the two roughened zones is ∆Ra = 309 nm (│Ra(zone) -Ra(back)│ = 309 nm) and a ∆Rsm = 81 µm (│Rsm(zone) - Rsm(back)│ = 81 µm.3. Decorative layerA decorative layer is added to the glass sheet that has been partially roughened to form the glassarticle of the present invention as illustrated in step (v) of Figure 4 and Figure 5. The application of thedecorative layer on the second surface of the glass sheet can be achieved before or after the partialetching process, preferably after achieving the partial (multi-) etching process. The same numeric filecontaining the desired design from Adobe Illustrator® that has been used for the partial rougheningphase now used for the deposition of the decorative layer.Example 8 of a glass articleExample 8 refers to the creation of a glass article with a geometrical pattern. In this example, the first surface of the glass sheet undergoes 2 partial etching steps corresponding to 2 foregrounds.a) First partial roughening phaseA glass sheet of 1.1mm thickness (8cm x 20cm) of a type of alumino-silicate glass composition soldunder the Trademane ‘Falcon Glass’ by AGC glass Europe was washed with an aqueous detergent and dried. An etching resistant mask was printed on the first surface of the glass sheet. The pattern of the mask corresponds to the second foreground and background of the decorative layer. The roughened zonecreated by the first partial roughening phase is complementary to the first foreground of thedecorative layer. The ink used for the etching resistant mask is an acrylic ink, UV curable, such as“SuperImage” inks from OCE. A masking tape is applied to the second surface of the glass sheet in order to protect it during the etching process. The glass sheet was dipped in 200 mL of an acid-etching solution at 20-25°C during 30s. The acid-etching aqueous solution comprises : NH4HF2at 12 mol%, SnCl2 at 0.2 mol%, HF at 15.0 mol% and HNO317 mol% The glass sheet is then removed from the dipping etching bath and immediately washed with an aqueous detergent. The printed mask and masking tape are removed by hot water and mechanical action (sponge or soft brush) directly after the rinsing. The first roughened is characterized by textures features: Ra1(fore)of 370nm and Rsm1(fore)of 52µm. This results in optical properties of Gloss of 23 G.U. (VLG, EHD) and diffusion of 98%, providing a very mat aspect. Typically, the non-roughened portion of the first surface has a Ra1(border)= 0,5nm and Rsm(border) = 0µm (assumption for mathematical computation easiness), the roughness differencebetween roughened and non-roughened zones is ∆Ra = 369,5nm (│Ra1(fore) - Ra(border)│ = 369,5 nm) anda ∆Rsm = 52µm (│Rsm1(fore) - Rsm(border)│ = 52µm).Second partial roughening phase A second partial roughening process is then achieved as described above. The pattern of the secondetching resistant mask corresponds to the roughening zone created by the first partial rougheningphase being the first foreground and to the background; to create a second roughening zone that willbe complementary to the second foreground of the decorative layer. The second partial rougheningphase differs from the first roughening phase in that the glass sheet is dipped in 200 mL of an acidsolution at 20-25°C during 60s. The acid-etching solution comprises HF at 10 mol% and HNO3 at 10mol%. The second roughened zone is characterized by textures features: Ra2(fore)of 260nm and Rsm2(fore)of 50µm. This results in optical properties of Gloss of 45 G.U. (LG, VHD) and diffusion of 94%, providing a lighter mat aspect, reflecting more direct light. The roughness difference between the two roughened zones, corresponding to the first foreground and the second foreground is ∆Ra = 110 nm, (│Ra1(fore) –Ra2(fore)│ = 110 nm) and a ∆Rsm = 2 µm, (│Rsm1(fore) – Rsm2(fore)│ = 2 µm.b) Deposition of the decorative layerThe decorative layer representing a geometrical pattern covers 100% of the second surface. UV-curable organic ink ‘SuperImage’ from company OCE is applied via inkjet printer. The decorative layerof the glass article of example 8 pictures a geometrical pattern wherein the first foreground has amedium black color a*=0, b*=0 and L*= 44, the second foreground has a strong black color a*=0, b*=0and L*= 33 over a background having light black color a*=0, b*=0 and L*= 54. ∆E between firstforeground and background of the decorative layer is 10. ∆E between second foreground andbackground of the decorative layer is 21. ∆E between first foreground and second foreground of thedecorative layer is 11.The glass article of the present invention illustrated in Figure 8 can be used as car interior elementand provide the required superior aesthetics, superior haptic and visual experience, required by high- end car manufacturers. 4. Deadfront articleExample 9 of a deadfront articleExample 9 refers to the creation of a deadfront article mimicking a polished wood pattern. In thisexample, the entire aera of the first surface is etched in a first step to provide a specific texturecomplementary to the background, before a first partial etching step provides the specific texturecomplementary of the foreground. This specific texturing pattern will create the haptic effect ofpolished wood.a) First roughening phaseA glass sheet of 1.1mm thickness (8cm x 20cm) of a type of alumino-silicate glass composition soldunder the Trademane ‘Falcon Glass’ by AGC glass Europe was washed with an aqueous detergent anddried. A masking tape is applied to the second surface of the glass sheet in order to protect it during theetching process. The entire area of the first surface of the glass sheet is etched in a first step : Theglass sheet was dipped in 200 mL of an acid-etching solution at 20-25°C during 30s. The acid-etching aqueous solution comprises : KHF2 at 2.5 mol %, SnCl2 at 0.25 mol %, HF at 2.5 mol% and HNO3 at 0.5 mol%. The glass sheet is then removed from the dipping etching bath and immediately washed with an aqueous detergent. The masking tape is removed directly after the rinsing. The roughened surface is characterized by textures features: Ra(full) of 200nm and Rsm(full) of 15µm. This results in optical properties of Gloss of 23 G.U. (VLG, HD) and diffusion of 65%, providing a very mat aspect.b) Partial roughening phaseAn etch resistant mask was printed on the first surface of the glass sheet. The pattern of the mask corresponds to negative image of the first roughened zone to be created, being the background. Theink used for the etch resistant mask is an acrylic ink, UV curable, such as “SuperImage” inks from OCE.A masking tape is applied to the second surface of the glass sheet in order to protect it during the etching process. The glass sheet is dipped in 200 mL of an acid solution at 20-25°C during 60s. The acid- etching solution comprises HF at 2.5 mol% and HNO3at 25 mol%. The glass sheet is then removed from the dipping etching bath and immediately washed with an aqueous detergent. The etch resistant mask and masking tape are removed by hot water and mechanical action (sponge or soft brush) directly after the rinsing.The partial roughening creates a first roughened zone mimicking wood veins in a complementaryfashion to the foreground, to create a wood decorative pattern. It is characterized by textures features: Ra1(zone) of 112nm and Rsm1(zone) of 13µm. This results in optical properties of Gloss of 40 G.U. (LG, VHD) and diffusion of 25%, providing a lighter mat aspect, reflecting more direct light. Theroughness difference between the two roughened zones, is ∆Ra = 88 nm, (│Ra(full) – Ra1 (zone)│ = 88 nm)and a ∆Rsm = 2 µm, (│Rsm (full) – Rsm1 (zone)│ = 2 µm).c) Decorative layer depositionThe decorative layer is then applied on the entire area of the second surface of the glass sheet,covering 100% of the second surface. An ink layer of 10 µm thickness was deposited by a digital printerand represents a wood pattern having one foreground and the background. The ink is composed oforganic materials and have light transmission less than 5% in the visible wavelength range.The decorative layer of the glass article of example 9 pictures wood veins as a foreground with a blackcolor a*=0, b*=0 and L*=12 over a background having a grey color a*=0, b*=0 and L*=29. ∆E betweenforeground and background of the decorative layer is 17.The combination of the double roughening of the first surface with the decorative layer gives a superiorpolished wood pattern. The glass article exhibits a very nice and soft haptic rendering thanks to thedifferent roughened, corresponding to a visual pattern provide by the back decorative layer.d) Laser decoatingThe above described glass article will be used in combination with a display device comprising onescreen. The portion of the decorative layer corresponding to the screen of the display device, is laserdecoated to create the perforated zone and thereby provide visual access to the screen. Theperforated zone is positioned in a complementary fashion the screen in that it corresponds to thepositioning of the screen. The perforated zone has the same overall shape and occupies the samerelative surface area than the screen : the perforated zone covers 100% of the screenThe decoating process is done with a laser source with pulse duration of 10 ps and wavelength of 1064 nm. The laser beam has Gaussian profile. The laser beam is coupled to a galvo scanner equipped with an f-theta lens, which has a focal length of 100 mm. The laser beam diameter at the focus of the lens is approximately 20 um. The other laser parameters are as follows: pulse repetition rate 1 MHz,average power 16 W, scanning velocity 2750 mm / s. With these settings, the discrete openings areparallel lines. The line width is roughly 25 µm and the distance between the lines is set at 60 µm. Aperforated zone corresponding to 100% of the screen is created.The dead front article of the present invention illustrated in Figure 9 can be used as car interiorelement and provide the required superior aesthetics required by high-end car manufacturers. Thedead front article completely masks the screen of the display device in the OFF mode (Figure 9(a)) andprovides a perfect see-through effect and visualisation of the screen in the ON mode (Figure 9(b)). Thedead front article of the present invention provides additionally a superior haptic and visual experience.Ref.# FeatureA Glass article B Dead front article1, 1b Roughened zone2 Glass sheet21 First surface of the glass sheet22 Second surface of the glass sheet3 Decorative layer31 Background32, 32b Foreground4 Discrete opening4b Tapered discrete opening4i Small region of a discrete opening4b1 Small region of a tapered discrete openingα Angle of the tapered discrete opening5 Perforated zone6 Screen of the display device7 Etch-resistant mask

Claims

CLAIMS1. A glass article (A) comprising:a) a glass sheet (2) comprising a first surface (21); and a second surface (22) opposite tothe first surface, wherein the first surface comprises at least one roughened zone (1),b) a decorative layer (3) disposed on at least a portion of the second surface of the glasssheet, wherein the decorative layer comprises a background (31) having a background color and at least one foreground (32), having a foreground color and wherein the difference of color, Delta E as calculated as per the CIE technical report 15:2004 isequal to or greater than 1 (ΔE ≥ 1), preferably equal to or greater than 2 (ΔE ≥ 2),preferably equal to or greater than 5 (ΔE ≥ 5), more preferably equal to or greaterthan 10 (ΔE ≥ 10), and even more preferably equal to or greater than 25 (ΔE ≥ 25),characterised in that the at least one roughened zone (1) is positioned on the first surface(21) of the glass sheet (2) in a complementary fashion to the background (31) and / or to the at least one foreground (32).

2. The glass article according to claim 1 wherein the at least one roughened zone is borderedby at least one border area and wherein the least one roughened zone has a mean surface roughness defined by an arithmetic amplitude value, Ra(zone), and the border area has a mean surface roughness defined by an arithmetic amplitude value, Ra(border), wherein theabsolute difference between Ra(zone) and Ra(border) is at least 25 nm (│Ra(zone) - Ra(border)│ ≥25 nm); preferably at least 50 nm (│Ra(zone) – Ra(border)│ ≥ 50 nm); more preferably at least100 nm (│Ra(zone) – Ra(border)│ ≥ 100 nm), and even more preferably at least 200 nm (│Ra(zone)– Ra(border)│ ≥ 200 nm); wherein Ra is measured on an evaluation length of 12 mm and witha Gaussian filter of which the cut-off wavelength is 0.8 mm.

3. The glass article according to any one of the preceding claims wherein the at least oneroughened zone is bordered by at least one border area and wherein the at least one roughened zone has a mean surface roughness defined by a spacing value, Rsm(zone)and the border area has a mean surface roughness defined by a spacing value, Rsm(Border) andwherein the absolute difference between Rsm(zone) and Rsm(border) is at least 2 µm(│Rsm(zone) - Rsm(border)│ ≥ 2 µm); preferably at least 3 µm (│Rsm(zone) - Rsm(border)│ ≥ 3 µm),preferably at least 10 µm (│Rsm(zone) - Rsm(border)│ ≥ 10 µm), more preferably at least 20µm (│Rsm(zone) - Rsm(border)│ ≥ 20 µm), and even more preferably at least 30 µm (│Rsm(zone)-Rsm(border)│ ≥ 30 µm); wherein Rsm is measured on an evaluation length of 12 mm andwith a Gaussian filter of which the cut-off wavelength is 0.8 mm.

4. The glass article according to any one of the preceding claims wherein the decorative layercomprises at least two foregrounds (32, 32b), preferably a multitude of foregrounds.

5. The glass article according to claim 4,- wherein the first surface comprises at least 2 roughened zones;- wherein a first roughened zone (1) has a Ra1(zone) and is positioned in complementaryfashion to the first foreground (32);- wherein a second roughened zone (1b) has a Ra2(zone) and is positioned in acomplementary fashion to the second foreground (32b) or to the background (31);and -wherein the first and second roughened zones are characterized by differentroughness such that there is preferably an absolute difference between Ra1(zone) andRa2(zone) of at least 25 nm (│Ra1(zone) - Ra2(zone) │ ≥ 25 nm); preferably at least 50 nm(│Ra1(zone) - Ra2(zone))│ ≥ 50 nm), more preferably at least 100 nm (│Ra1(zone) -Ra2(zone)│ ≥ 100 nm), even more preferably at least 200 nm (│Ra1(zone) - Ra2(zone) │ ≥ 200 nm).

6. The glass article according to any one of the preceding claims 4 to 5,- wherein the first surface comprises at least 2 roughened zones;- wherein a first roughened zone (1) has a Rsm1(zone) and is positioned incomplementary fashion to the first foreground (32);- wherein a second roughened zone (1b) has Rsm2(zone) and is positioned incomplementary fashion to the second foreground (32b) or to the background (31);and -wherein the first and second roughened zones are characterized by differentroughness such that there is preferably an absolute difference between Rsm1(zone) and Rsm2(zone) of at least 2 µm (│Rsm1(zone) - Rsm2(zone)│ ≥ 2 µm), preferably at least 3 µm(│Rsm(zone) - Rsm(border)│ ≥ 3 µm), preferably at least 10 µm (│Rsm1(zone) - Rsm2(zone)│ ≥10µm), more preferably at least 20 µm (│Rsm1(zone) - Rsm2(zone)│ ≥ 20 µm), and evenmore preferably at least 30 µm (│Rsm1(zone) - Rsm2(zone)│ ≥ 30 µm).

7. The glass article according to any one of the preceding claims wherein the backgroundand the at least one foreground picture a leather grain pattern, a wood grain pattern, afabric pattern, a stone pattern, a brushed metal finish pattern, a carbon fiber pattern and / or a geometrical pattern.

8. The glass article according to any one of the preceding claims wherein the decorative layerexhibits a TLD4 light transmittance equal to or lower than 50% (TLD4 ≤ 50%), preferably equal to or lower than 30% (TLD4 ≤ 30%), preferably equal to or lower than 10% (TLD4 ≤10%), preferably equal to or lower than 5% (TLD4 ≤ 5%), more preferably equal to or lower than 2% (TLD4 ≤ 2%).

9. The glass article according to any one of the preceding claims wherein the decorative layerhas a thickness (T) equal to or greater than 1μm (T ≥ 1µm), preferably equal to or greaterthan 2μm (T ≥ 2µm), preferably equal to or greater than 3μm (T ≥ 3µm), more preferably equal to or greater than 5μm (T ≥ 5µm) and / or equal to or lower than 40µm (T ≤ 40µm), preferably equal to or lower than 30µm (T ≤ 30µm), preferably equal to or lower than 25µm (T ≤ 25µm), preferably equal to or lower than 20µm (T ≤ 20µm), preferably equal to or lower than 15µm (T ≤ 15µm), more preferably equal to or lower than 12µm (T ≤ 12µm).

10. The glass article according to any one of the preceding claims wherein the glass sheet is astrengthened glass sheet, preferably a chemically strengthened glass sheet.

11. The glass article according to any one of the preceding claims wherein the first face of theglass article is coated with an anti-fingerprint layer.

12. The glass article according to any of the preceding claims wherein the decorative layer hasa perforated zone (5) comprising discrete openings (4) having a dimension equal to or lower than 200 µm.

13. A glass article according to claim 12 wherein the discrete openings are spaced from eachother by a spacing distance equal to or lower than 200μm, preferably by equal to or lower than 150µm, more preferably equal to or lower than 100µm.

14. A glass article according to any one of the preceding claims 12-13 wherein the discreteopenings are in the shape of lines having a width equal to or lower than 30μm, preferably equal to or lower than 20µm, preferably of equal to or lower than 10µm.

15. A dead front article (B) comprising the glass article (A) according to any one of thepreceding claims 12-14 and at least a display device having at least a screen (6), whereinthe second surface (22) of the glass sheet (2) is facing the display device; and wherein thedecorative layer (3) is positioned in a complementary fashion to the screen.

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