A decorative laminated glazing

Abstract

The present invention relates to a decorative laminated glazing (1) comprising at least one first glass sheet (11) having an exterior face (P1) and an interior face (P2) and at least one second glass sheet (12) having an interior face (P3) and an exterior face (P4), at least one interlayer (13) having a face (Pa) facing the interior face (P2) of the first glass sheet (11) and a face (Pb) facing the interior face (P3) of the second glass sheet (12), at least one decorative zone (2) comprising at least one coating (21, 22, 25) at least partially covering the glazing (1).

Description

A DECORATIVE LAMINATED GLAZINGFIELD OF THE INVENTION

[0001] The present invention relates to a laminated glazing, in particular a decorative laminated glazing. More particularly, a laminated glazing comprising at least two glass sheets and an interlayer and a decorative zone at least partially covering the glazing and more particularly to techniques for its production. Especially decorative vehicle glazing plays a crucial role in improving the aesthetics while maintaining safety and functionality.BACKGROUND OF THE INVENTION

[0002] The invention is primarily intended to be used in production of automotive glazing but not limited to. The present invention relates to a glazing comprising a decorative zone laminated inside the glazing. The invention relates to the field of glazing, in particular glazing of vehicles, for example windshields, rear windows, side-lites, quarter-lites, roofs or even interior trims or even pillars coupled with glazing. Moreover, such glazings must meet a large number of requirements in terms of both safety and comfort.

[0003] The aesthetics of such elements of a vehicle constitute an important factor allowing it to stand out in a highly competitive market condition. The aim of the invention is to provide a glazing with an attractive decorative zone. In particular, glazing proposed allowing an improved aesthetic rendering that can also provide functional aspects.

[0004] In order to differentiate vehicles by their design, vehicle manufacturers are also looking for original decors, in particular decors which are visible from the outside of the vehicle, but without harming the light and thermal comfort of the passengers. Decors allowing the creation of a soft transition zone between the bodywork and the clear glass view are particularly sought after.

[0005] Therefore, there is a need of providing more depth perception, i.e., 3D effect to the user which improves the aesthetical perception, giving the vehicle more muscular and sportier design with a less costly investment and without weaken safeness of the vehicle described in the safety regulations of the modern vehicles since design of the vehicle is bound by the regulations.

[0006] I n the state of the art, glazings with dichroic coatings are widely known. Such glazings provide the glazing being differently colored depending on the viewing angle. Furthermore,glazings with semi-mirror effect are also widely known, the reflections from the glazing are controlled by the coating layer to have semi-mirror effect.

[0007] W02018015382 discloses a glazing to be used as a decorative element, and furthermore providing the composition of the glass.

[0008] W02013178702 provides a glass substrate to be used as a screen for optoelectronic devices, wherein the glass substrate is treated to be obscure glass to eliminate reflections and widen the viewing angle.

[0009] W02023203094 describes a glazing with dichroic coating comprising a dielectric layer with metal particles. Furthermore, size and shape of the metal particles are disclosed. Dispersed metal particles provide the dichroic effect.

[0010] I n the solution of WO2023208956, a single glazing with a coating comprising dichroic and metallic pigments is disclosed.

[0011] ln W02023209025, a glazing with multiple layers of coating is disclosed, wherein the stack of thin layers is super positioned with a first layer of enamel.

[0012] Therefore with the known techniques in the art, such laminated vehicle glazings are providing the decorative effect especially in terms of color and / or reflection, i.e., mainly two dimensional decors, moreover such glazings are produced to be compatible with single glazings and therefore requiring protective layers for such decors, i.e., even the so called laminated decorative glazings are combination of single decorative glazings, thus providing such laminated glazing with an improved and enhanced depth effect is even more challenging given the conventional thickness of such vehicle glazings.

[0013] Unfortunately, the solutions provided in the prior art for the issues of decorative zone are requiring extra steps in the production or usage of extra features which means extra time and cost for the production. Apart from that, prior art solutions provide single glazings with decorative effect and such single glazings need a protective layer to protect decorative coatings or glazings with only two-dimensional decorative effect which lacks aesthetic transition with the vehicle body. Thus, providing a laminated glazing with decorative zone enabling an enhanced depth effect, i.e., 3D effect in an affordable way for the final customers cannot be a widely spread application.

[0014] Supplementary to the long production times and high cost, there is still need for a decent glazing with decorative zone providing an improved and amplified depth effect.SUMMARY OF THE INVENTION

[0015] The goal of the present invention is to provide a glazing having a decorative zone laminated inside and with an improved depth effect for the viewing user to eliminate the aforementioned problems like the need of a protective layer for the coatings. The present invention aims to address specific challenges related to glazing materials, and integration into vehicle design.

[0016] The present invention provides a glazing with a decorative zone that may have an improved / enhanced depth effect, i.e., 3D effect by providing a distance between the coatings. The glazing of the present invention is perceived as a 3D structure by the viewing eye. More specifically, the present invention provides different coatings separated by the interlayer used in the lamination process. Even more specifically, the present invention provides a glazing with a decorative zone providing an improved depth effect alongside the color and / reflection effects provided in the prior art for such glazings.

[0017] It is therefore an objective of the present invention to improve the decorative vehicle glazings by addressing these critical aspects, revolutionizing the field with enhanced / amplified 3D effect, i.e., depth effect.

[0018] The laminated decorative glazing of the present invention comprises at least a first coating and a second coating separated from each other by the interlayer, in other words, a real physical distance is provided between the coatings in order to enhance the depth effect. The decorative zone of the present invention enables the improved depth effect for the user regardless of the viewing angle or lightning conditions thanks to the physical separation of the decorative coatings. The said coatings may provide different optical effects such as dichroic effect or semi-mirror effect.

[0019] I n one of the preferred embodiments of the present invention, the coatings may super positioned on each other to provide different optical effects like dichroic, semi-mirror, reflective or anti-reflective or more. Providing such coatings separated from each other by a physical distance provides deepness for a viewer regardless of the lightning conditions or the viewing angle since the glazing is laminated.

[0020] In one another preferred embodiments of the present invention, the thicknesses of the coatings may vary along the glazing in a predefined axis to provide differently combined optical effects like dichroic, semi-mirror, reflective or anti-reflective or more, especially in the axis from the periphery of the glazing to the center of the glazing. Providing such coatingsseparated from each other by a physical distance provides enhanced deepness for a viewer regardless of the viewing angle or the lightning conditions.

[0021] In one another preferred embodiments of the present invention, the coatings may have a pattern, i.e., comprise coated and de-coated regions preferably in the lateral axis, especially in the axis from the periphery of the glazing to the center of the glazing to provide an improved depth effect.

[0022] The foregoing detailed description is given primarily for clearness of understanding and no unnecessary limitations are to be understood therefrom for modifications can be made by those skilled in the art upon reading this disclosure and may be made without departing from the nature of the invention.BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The invention will now be described further, by way of examples, with reference to the accompanying drawings, wherein like reference numerals refer to like elements in the various figures. These examples are provided by way of illustration and not of limitation. The drawings are a schematic representation and not true to scale. The drawings do not restrict the invention in any way. More advantages will be explained with examples. A better understanding of the present invention will be added upon reference to the following description in conjunction with the accompanying drawings.

[0024] FIG.l is a partial view of a vehicle with glazing.

[0025] FIG.2 is a schematic view of the laminated glazing according to one embodiment of the present invention.

[0026] FIG.3 is a schematic view of coatings on different glass sheet and the decorative zone provided by the coatings according to one embodiment of the present invention.

[0027] FIG.4 is a schematic view of coated and decoated regions according to one embodiment of the present invention.

[0028] The elements illustrated in the figures are numbered as follows:I. GlazingII. First sheet12. Second sheet13. Interlayer2. Decorative zone21. First coating22. Second coating230. Thin layer24. Pattern241. Coated region242. De-coated region25. Other coatingDETAILED DESCRIPTION OF THE INVENTION

[0029] The present invention will be described with respect to particular embodiments and with reference to certain drawings, but the invention is not limited thereto but only by the claims.

[0030] While some embodiments described herein include some, but not other features included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention, and form different embodiments, as would be understood by those in the art. For example, in the following claims, any of the claimed embodiments can be used in any combination.

[0031] As used herein, spatial ordirectional 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.

[0032] Moreover, all ranges disclosed herein are to be understood to be inclusive of the beginning and ending range values and to encompass any and all subranges subsumed therein. For example, a stated range of "1 to 10" should be considered to include any and all subranges between (and inclusive of) the minimum value of 1 and the maximum value of 10; that is, all subranges beginning with a minimum value of 1 or more, e.g., 1 to 6.1, and ending with amaximum value of 10 or less, e.g., 5.5 to 10. Further, as used herein, the terms "deposited over" or "provided over" mean deposited or provided on but not necessarily in surface contact with. For example, a coating "deposited over" a substrate does not preclude the presence of one or more other coating films of the same or different composition located between the deposited coating and the substrate.

[0033] Where the term "comprising" is used in the present description and claims, it does not exclude other elements or steps. Where an indefinite or definite article is used when referring to a singular noun e.g., "a" or "an", "the", this includes a plural of that noun unless something else is specifically stated. In this document, "configured to (or set to)" may be interchangeably used in hardware and software with, for example, "appropriate to", "having a capability to", "changed to", "made to", "capable of", or "designed to" according to a situation. In any situation, an expression "device configured to do" may mean that the device "can do" together with another device or component.

[0034] 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 connected to the another constituent element or may be connected to the another constituent element through another constituent element (e.g., a third constituent element).

[0035] I n the following description, unless otherwise specified, expression "substantially" or "around" or "proximity" or "close to" preferably mean to within 10%, preferably to within 5% i.e., in this context the terms should be understood as in the range of ± 10%, even more ± 5%. Tolerance may be selected depending on the nature of the intended applications.

[0036] A vehicle should be understood as any conveyor that transfers anything from point a to point b which includes any land, air or sea vehicles like car, van, lorry, motorbike, bus, tram, train, drone, airplane, helicopter and the like.

[0037] In the following description, unless otherwise specified, expression "decor", "deco", "decorative", "decorative zone" are used interchangeably, expression "layer", "thin layer", "coating layer", are used interchangeably, further expression "decoating", "decoated", "decoated region" and "decoated line" are used interchangeably, further expression "flow", "fluidic flow", "liquid flow" and "liquid adhesive flow" are used interchangeably.

[0038] The present invention introduces improvements to a decorative laminated glazing (1) comprising at least one first glass sheet (11) having an exterior face (Pl) and an interior face (P2) and at least one second glass sheet (12) having an interior face (P3) and an exterior face (P4), at least one interlayer (13) having a face (Pa) facing the interior face (P2) of the first glass sheet (11) and a face (Pb) facing the interior face (P3) of the second glass sheet (12), at least one decorative zone (2) comprising at least one coating (21, 22, 25) at least partially covering the glazing (1). Before going into the details of the present invention, definitions for glazing (1), structure of the proposed glazing (1) will be explained herein.

[0039] The laminated glazing (1) may be used as a vehicle glazing or as a glazing for buildings and / or architectural purposes or anywhere where such glazing is required. In the automotive industry, such glazings are used as windshields, backlites, sidelites, roofs, rear-door-fixes or quarter-lite-fixes or interior trim elements.

[0040] The glazing (1) is comprising a first glass sheet (11) having an outer (Pl) and an inner (P2) face, a second glass sheet (12) having an outer (P4) and an inner (P3) face. The glass sheets (11, 12) may be glass sheets as conventional vehicle glazing, however other compatible materials can be used as the glass sheets. According to the invention, the glass may be a glass of soda-lime-silica, aluminosilicate or borosilicate type, and the like, or etc. For the sake of the invention, the material or other properties (thickness, number of glass sheets) of the glass sheet (11, 12) is not utmost important, the glazing (1) may be made of combination of different glass sheets (11, 12). Thus, the composition of the glazing (1) is not crucial for the purpose of the present invention. Moreover, the thicknesses of the glass sheets (11, 12) are also not crucial for the purpose of the present invention.

[0041] The glazing (1) is comprising interlayers (13) as bonding layer for the glass sheets (11, 12). The interlayer (13) may be one of the conventional interlayers used in lamination processes, examples of the interlayer (13) are EVA, TPO, POE, PVB, TPU, Ionomers, optical resin, optical clear adhesives and etc. which are widely known and used in both automotiveand architecture industry. For the sake of the invention, the material of the interlayer (13) is not utmost important.

[0042] According to the invention, the term "laminated" refers to a step of providing a layered structure in which one or more glass sheets (11, 12) are separated by an interlayer (13) extending across substantially the entire interface between the glass sheets (11, 12). In the preferred embodiment, the lamination is realized by sandwiching the interlayer (13) by the glass sheets (11, 12). The interlayer (13) is used as a bonding layer during the lamination process. In the preferred embodiment, the lamination process is a classical lamination process including autoclave a glazing (1).

[0043] According to examples of the present invention, the Fig.l and Fig. 2 show a laminated automotive glazing; the glazing is intended to be fixed on the vehicle's body. It is understood that the invention is not limited to a roof and in another preferred embodiment of the present invention, the laminated glazing (1) can be used in any glazing for a vehicle and in another preferred embodiment of the present invention, the laminated glazing (1) can be used in outside of automotive industry, i.e., anywhere where a laminated glazing (1) is needed.

[0044] The glazing (1) as shown in Fig.2 as an embodiment of the present invention comprises a first sheet (11) having an external surface (Pl) and an inner surface (P2), and a second sheet (12) having an inner surface (P3) and an outer surface (P4). Such glazing (1) is laminated. The first sheet (11) of the glazing (1) is that sheet in contact with the exterior of the vehicle. The second sheet (12) is that sheet in contact with the inner space of the vehicle. However, as explained above, the ordering can be changed and also the glazing (1) can be a triple glazing or any kind of glazing with at least two sheets (11,12). The glazing (1) can also include more electrical devices which are laminated inside, and not necessarily the same kind of electrical devices, for instance, antennas, solar cells, functional films, lightning modules, thermal coatings, heating / defrosting elements and etc.

[0045] Th us, the invention relates to any glazing (1), whether tempered, curved or not, whether for a vehicle or a building, that comprises a decorative zone (2), and the glazing (1) comprises a bonding interlayer (13) for lamination as described above, the bonding layer can be any interlayer (13) material suitable for traditional lamination process. Achieving such configuration of the glazing (1) with the decorative zone (2) may be accomplished in any method, the present invention is related to composition of the decorative zone (2) inside the glazing (1).

[0046] The decorative zone (2) of the glazing (1) of the present invention comprises a first coating (21) between the first glass sheet (11) and the interlayer (13) and a second coating (22) between the second glass sheet (12) and the interlayer (13). The decorative zone (2) of the present invention comprises at least two coatings (21, 22), in different embodiments of the present invention the decorative zone (2) may comprise other coatings (25), such other coatings (25) may serve the purpose of the present invention or any other purpose. The first coating (21) is provided close to the first glass sheet (11) and the second coating (22) is provided close to the second glass sheet (12), i.e., the coatings (21, 22) are separated by the interlayer (13). By providing at least a predetermined distance / offset between the first and second coating (21, 22), an improved depth effect for the viewing user is provided, especially since there exists a real offset / distance between the coatings (21, 22), the provided 3D effect is more evidently perceived than optically induced depth effects. The coatings (21, 22, 25) should be understood as at least a monolayer applied on the said surface and the coating (21, 22, 25) may comprise multilayers deposited on each other.

[0047] In one embodiment of the present invention, the first coating (21) is deposited on the interior face (P2) of the first glass sheet (11) or the face (Pa) of the interlayer (13). The first coating (21) may be applied on the first glass sheet (11) by screen printing or inkjet printing or physical and / or chemical deposition or magnetron sputtering which provide uniform thickness coatings as monolayer or composed of multiple layers. Moreover, the first coating (21) may also be applied on the face (Pa) of the interlayer (13) by screen printing or inkjet printing or physical and / or chemical deposition or magnetron sputtering. Such availability of alternatives provides facilitation of various different coating stacks, therefore enables a vast number of alternative functions for the glazing (1).

[0048] In another embodiment of the present invention, the second coating (22) is deposited on the interior face (P3) of the second glass sheet (12) or the face (Pb) of the interlayer (13). The second coating (22) may be applied on the second glass sheet (12) by screen printing or inkjet printing or physical and / or chemical deposition or magnetron sputtering which provides uniform thickness coatings as monolayer or composed of multiple layers. Moreover, the second coating (22) may also be applied on the face (Pb) of the interlayer (13) by screen printing or inkjet printing or physical and / or chemical deposition or magnetron sputtering. Such availability of alternatives provides facilitation of various different coating stacks, therefore enables a vast number of alternative functions for the glazing (1).

[0049] In a version of above embodiments of the present invention, the coatings (21, 22, 25) may be provided by different methods than each other in order to provide a different function for the glazing (1) apart from improving depth effect for the viewing user.

[0050] In another embodiment of the present invention, the coatings (21, 22, 25) are super positioned. As disclosed, the decorative zone (2) may comprise more than two coatings. In this embodiment, at least two coatings (21, 22, 25) are super positioned, for example two different coatings (21, 22, 25) on P3 face are superpositioned on each other and another coating is on P2 face. Super positioning in this context should be understood as that the total transmission or reflection of the decorative zone (2) is sum of the transmission or reflection of the individual coatings (21, 22, 25) super positioned, therefore, not necessarily mean that the coatings (21, 22, 25) are provided on top of each other, they may be provided on different faces of the glass sheets as the view of the glazing from outside will be perceived as superpositioned. In other words, the coatings (21, 22, 25) may arranged such a way that the light waves interfere constructively or destructively or combination of both for each / different color range or incident angle.

[0051] ln a preferred embodiment, the configuration of the first glass sheet (11) / the first coating (21) / the interlayer (13) / the second coating (22) / the second glass sheet (12) is interesting as the interlayer (13) is advantageously used as a low index layer. This allows to reach more complex interferential stacks of coatings (21, 22, 25), while keeping the application of the coatings easy to produce since two coatings may be applied simultaneously on different surfaces, as the block "first coating (21) / interlayer (13) / second coating (22)" acts as a single interferential film alternating high and low index materials, i.e., instead of having a coating (21, 22, 25) with many layers on one glass sheet (11, 12), same configuration can be realized by applying the same on different glass sheets.

[0052] In another embodiment of the present invention, the thickness of the coatings (21, 22, 25) ranging between 1 nm to 1000 nm, preferably 5 nm to 500 nm, more preferably 25 nm to 350 nm. Depending on the desired feature, such as semi-mirror or dichroic or else, of the decorative zone (2), the coatings (21, 22, 25) may have predefined thicknesses as mentioned. In a version of this embodiment, the thickness of the coatings (21, 22, 25) varying along in any direction on the glazing (1). In such version of the present embodiment, different properties are enabled to be defined for different regions on the surface of the glazing (1).

[0053] In another embodiment of the present invention, at least one coating (21, 22, 25) comprising more than one thin layer (230). The coatings (21, 22, 25) may be composed of many thin layers (230). The coatings (21, 22, 25) are realized by deposition of such thin layers (230) on top of each other. The thickness of each thin layer (230) may depend on the desired feature, providing the total thickness of the coating (21, 22, 25) remained as predefined. The coatings (21, 22, 25) may include up to 10 thin layers (230), preferably up to 7 thin layers (230), more preferably up to 5 thin layers (230). Providing the coatings (21, 22, 25) by the thin layers (230) enables improvement of the bandwidth of the effect in terms of wavelength.

[0054] In a version of the above embodiment, at least one of the coatings (21, 22, 25) comprising thin layers (230) with alternating stacks of high and low refractive index. A high refractive index should be understood as higher than 1.8, and particularly higher than 1.85, and more particularly higher than 1.9. A low refractive index should be understood as lower than 1.8, particularly lower than 1.75, and more particularly lower than 1.7. In an alternate of the version, a low refractive index should be understood a refractive index close to the refractive index of the glass sheets (11, 12) and a high refractive index should be understood as a much more high refractive index than the refractive index of the glass sheets (11, 12), and the refractive index is defined at 550 nm wavelength as used in standards and "close to" should be considered as ±0.1 and "much more" should be considered as at least 0.2 more.

[0055] The coatings (21, 22, 25) are preferably dielectric coatings. The coatings (21, 22, 25) may be composed of various alternative materials. Layers (230) of high refractive index materials can be for example chosen among titanium oxide based layers, niobium oxide based layers, bismuth oxide based layers, zirconium oxide or nitride based layers, zirconium and silicon nitride based layers, layers based on silicon and / or aluminum nitrides or oxynitrides, zinc oxide based layers, tin oxide based layers, layers based on a mix of zinc and tin oxides, layers based on a mix of zirconium and titanium oxides and combinations thereof, but not limited to. Layers (230) of low refractive index materials can be composed for example of silicon oxide-based layers. The first layer (230) in contact with the glass sheet (11, 12) may be a high refractive index material or a low refractive index material and also the last layer in the coating (21, 22, 25) may be a high refractive index material or a low refractive index material. The coatings (21, 22, 25) with the capability of such various design may function as change of color in reflection as a function of the viewing angle and / or difference in color between reflection and transmission by interfaces between each layers, creating constructive anddestructive interferences between the light reflected / transmitted at each interface and by changing the thickness of each layer (230), the wavelength ranges for which the interference is constructive or destructive can be designed and moreover the color and / or on the reflection / transmission levels can be designed.

[0056] 0ne example for such coatings (21, 22, 25) as follows TZO (titanium zirconium oxide) / SiO2 (silicon oxide) / TZO (titanium zirconium oxide) / SiO2 (silicon oxide) / TZO (titanium zirconium oxide) and thicknesses for each thin layer (230) is varying from 50 nm to 150 nm. The said effects can be obtained thanks to one monolayer of preferably only TZO or multilayer stack preferably up to 10 thin layers or an alternative coating structure providing a dichroic effect or a semi-transparent mirror effect. The coatings (21, 22, 25) may be partially masked or decoated or etched to provide a pattern. The superposition of pattern on face 2 and face 3 creates therefore a 3D motif when looking through the window.

[0057] In another embodiment of the present invention, at least one of the coatings (21, 22, 25) comprising a pattern (24) consisting coated regions (241) and de-coated regions (242). Such patterns (24) may serve to different purposes, especially enhancing the depth effect or providing enhancement for the brand identity or providing the logo of the brand, an example is given in Fig. 3 and as it can be seen from Fig. 3 that two different pattern (24) on different coatings (21, 22) may also be combined to have a new pattern (24) in the decorative zone (2) of the glazing (1). As mentioned in the context of the present invention, such de-coated regions (242) may be realized by laser de-coating process or by masking prior to the coating process or by etching or any other means available. The de-coated regions (242) may comprise different shapes like lines, circles, stars or any shape that provides the intended pattern.

[0058] In another embodiment of the present invention, the width of the de-coated regions (242) varying from at least 1 pm to higher values. In order to enhance the depth effect, the pattern (24) better provides substantially linear alternations, therefore unwanted interferences should be eliminated or minimized. Those unwanted interferences usually caused by the young interference. To eliminate such interferences, the width of the de-coated regions (242) should be more than the predefined value, especially 1 pm, such shown in Fig. 4.

[0059] In another embodiment of the present invention, the distance between the de-coated regions (242) is at least 5 pm. In order to enhance the depth effect, the pattern (24) betterprovides substantially linear alternations, therefore the distance between the adjacent decoated regions varies from 5 pm to 10 mm, such shown in Fig. 4.

[0060] In a preferred embodiment, the distance between the de-coating regions (242) alternates from periphery of the glazing to the center of the glazing. Such alternations of the frequency of decoated regions (242) provide a depth effect for the glazing such as perception of center of the glazing as being at a closer or farther level than the periphery when viewed from outside. In a different version, the alternations may go from left to right or any other direction depending on the need that depth effect on the glazing can be aligned with the contours of the vehicle body.

[0061] Two specific examples for the decorative zone (2) of the present invention are given in the table 1 below. The coatings (21, 22) in each example consist of five thin layers (230). Cl and C2 are being the coatings (21, 22) separated by the interlayer (13), the interlayer (13) being PVB with minimum thickness of 0.38 mm. It is also shown that the depth perception is improved by the increasing thickness of the interlayer (13), a decorative glazing (2) with more than one layer of interlayer (13) is perceived as more depth than the decorative glazing (1) with one layer of interlayer (13) as the physical distance between the coatings (21, 22, 25) increased for the same coatings (21, 22, 25) and patterns (24). The thicknesses of the glass sheets (11, 12) may vary from 0.2 mm to 5 mm depending on the intended configuration. The thicknesses given in the table 1 below are all in nanometers. Example #1 provides a dichroic effect that the perceived color of the glazing is changing depending on the viewing angle. Example # 2 provides a semi-mirror effect, both coatings (21, 22) in this example are identical to each other since the semi-mirror effect can be realized by only one coating (21, 22), therefore, by having identical coatings (21, 22) separated by the interlayer (13) enables a semi-mirror effect with enhanced depth effect, i.e., 3D effect.-Table 1-

[0062] In one another embodiment of the present invention, the glazing (1) comprising a black enamel band (not shown in figures) around the glazing edges and the decorative zone(2) are at least partially overlapping with the black enamel band, the black enamel may assist to enhance the depth effect in combination with the coatings (21, 22). It is very common in the automotive industry to apply black enamel band around the glazing edges for many practical reasons and application of such black bands, the material to be used are widely known.

[0063] By the separated coatings (21, 22) of the present invention, achieving a decorative glazing (1) with an enhanced depth effect became possible with also different optical effects like dichroic, semi-mirror effect and also keeping the coatings (21, 22) laminated inside the glazing (1), the protection need forthe coatings (21, 22) are eliminated. Therefore, in addition to the conventional optical effects, a glazing (1) which is perceived like a 3D structure may contribute to the vehicle design by enabling luxurious aesthetics in a less costly manner.

Claims

CLAIMS1. A decorative laminated glazing (1) comprising at least one first glass sheet (11) having an exterior face (Pl) and an interior face (P2) and at least one second glass sheet (12) having an interior face (P3) and an exterior face (P4), at least one interlayer (13) having a face (Pa) facing the interior face (P2) of the first glass sheet (11) and a face (Pb) facing the interior face (P3) of the second glass sheet (12), at least one decorative zone (2) comprising at least one coating (21, 22, 25) at least partially covering the glazing (1), characterized in that the decorative zone (2) comprising a first coating (21) between the first glass sheet (11) and the interlayer (13) and a second coating (22) between the second glass sheet (12) and the interlayer (13).

2. A decorative laminated glazing (1) according to claim 1, characterized in that the first coating (21) is deposited on the interior face (P2) of the first glass sheet (11) or the face (Pa) of the interlayer (13).

3. A decorative laminated glazing (1) according to any preceding claims, characterized in that the second coating (22) is deposited on the interior face (P3) of the second glass sheet (12) or the face (Pb) of the interlayer (13).

4. A decorative laminated glazing (1) according to any preceding claims, characterized in that at least two coatings (21, 22, 25) are super positioned.

5. A decorative laminated glazing (1) according to any preceding claims, characterized in that the thickness of the coatings (21, 22, 25) ranging between 1 nm to 1000 nm, preferably 5 nm to 500 nm, more preferably 25 nm to 350 nm.

6. A decorative laminated glazing (1) according to claim 5, characterized in that the thickness of the coatings (21, 22, 25) varying along in any direction on the glazing (1).

7. A decorative laminated glazing (1) according to any preceding claims, characterized in that at least one coating (21, 22, 25) comprising more than one thin layer (230).

8. A decorative laminated glazing (1) according to claim 7, characterized in that at least one of the coatings (21, 22, 25) comprising thin layers (230) with alternating stacks of high and low refractive index.

9. A decorative laminated glazing (1) according to any preceding claims, wherein at least one of the coatings (21, 22, 25) comprising a pattern (24) consisting coated regions (241) and de-coated regions (242).

10. A decorative laminated glazing (1) according to claim 9, characterized in that the pattern (24) is provided by de-coating or masking or etching processes or combinations thereof.

11. A decorative laminated glazing (1) according to claim 9 or 10, wherein the width of the de-coated regions (242) is at least 1 pm.

12. A decorative laminated glazing (1) according to claims 9 to 11, wherein the distance between the de-coated regions (242) is at least 5 pm.

13. A decorative laminated glazing (1) according to claims 9 to 12, wherein the distance between the de-coating regions (242) alternates from periphery of the glazing to the center of the glazing.

14. Use of a decorative laminated glazing (1) according to any preceding claims as a dichroic glazing.

15. Use of a decorative laminated glazing (1) according to claims 1 to 13 as a semi-mirror glazing.

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