Illuminable glass window

Abstract

The invention relates to an illuminable glazing (100) comprising:-at least one pane (1) for separating an interior from an external environment, said pane having a first main surface (I) and a second main surface (II) connected to each other by an end-face edge surface (10), the first main surface (I) being intended to face the external environment, and the second main surface (II) being intended to face the external environment; the first main surface (I) is intended to face the interior space, and the second main surface (II) is intended to face the interior space, the pane (1) being a planar light guide such that light (3.2) coupled into the pane (1) can propagate by total internal reflection,-at least one light module (3) comprising a light source (3.1) for generating light (3.2), the light module (3) being arranged on the first main surface (I) and / or the second main surface (II), the first main surface (I) and / or the second main surface (II) have at least one primary light out-coupling region (5) for coupling the total reflection light out of the pane (1), the primary light out-coupling region (5) being designed such that the total reflection light can be coupled out to an external environment, and wherein the primary light out-coupling region (5) is designed such that the total reflection light can be coupled out of the pane (1), and wherein the light (3.2) generated by the light source (3.1) is coupled into the pane (1) and is totally reflected in the pane (1). The light source (3.1) is arranged in a light guide element (3.4) having a body made of an optically transparent cured adhesive, the light guide element (3.4) having a light output surface (3.3) facing the main surface (I, II) on which the light module (3) is arranged, and wherein the light guide element (3.4) has a light output surface (3.3) facing the main surface (I, II) on which the light module (3) is arranged. According to the invention, the glazing (100) has a contrast-enhancing element, in particular a black print (6), on the inside of the at least one primary light-out-coupling region (5), which contrast-enhancing element covers the at least one primary light-out-coupling region (5) when viewed vertically through the glazing (100).

Description

TECHNICAL FIELD

[0001] The present invention relates to an illuminable glazing comprising at least one light module, a method for manufacturing the same and various uses of the illuminable glazing in a vehicle. BACKGROUND

[0002] From the prior art, vehicles are known which have illuminable glazing which provides suitable illumination of the interior as required. The illumination not only offers the possibility of orientation in the vehicle, but also creates a pleasant atmosphere for the occupants. Laminated panes made of two or more glass or polymer panes are used as windshields, rear panes, side panes and roof panes in vehicles. In the case of illuminable glazing, light from a light source is coupled into the pane which serves as a planar light guide and is guided through the pane using total internal reflection until the light is coupled out of the pane at a light outcoupling region.

[0003] WO 2010 / 049638 A1, WO 2013 / 053629 A1, WO 2014060409 A1 or WO 2015 / 095288 A2 each disclose light coupling into a glass pane via a lateral surface. In WO 2014 / 060409 A1, the pane is attached beneath a laminated glass pane by means of a housing or shell.

[0004] WO 2022 / 096365 A1 discloses a glazing with a light source for coupling light to a main surface of the pane. Light can be coupled out at the main surface of the pane via a light outcoupling device.

[0005] JP H11217042 A discloses a pane in which light can be coupled into the pane at an end face edge surface and coupled out at a main surface of the pane. FR 2982196 A1 also discloses a laminated pane with a light incoupling device at an end face. CN 115823532 A discloses a pane in which light from a diode arranged on a wedge-shaped light guide made of an optically transparent adhesive is coupled in at a main surface of the pane.

[0006] In the case of conventional illuminable glazing, the focus is on ambient lighting in the interior of the vehicle. In this process, light can be fed, for example, into the inner glass of a laminated pane of a roof pane and coupled out of the laminated pane at specific locations and in an optically appealing pattern. SUMMARY

[0007] The present invention is particularly aimed at providing an illuminated window that allows for improved visibility or discernibility of light coupled into the external environment, especially regarding advantageous applications of illuminated windows. Another object of the invention is to provide a cost-effective method for manufacturing such an illuminated window. A further object of the invention is to provide advantageous applications or uses for such an illuminated window.

[0008] According to the present invention, these and other problems are solved by the illuminateable glass window according to claims 1, 10, 14 and 15, the method of manufacturing thereof, and its use. Preferred embodiments are apparent from the dependent claims.

[0009] According to the present invention, an illuminateable glass window is shown, comprising at least one pane for separating an interior space from an external environment. The at least one pane has a first main surface (“side I” or “I”) and a second main surface (“side II” or “II”) connected to each other via end-face edge surfaces. The first main surface I is designed to face the external environment; the second main surface II is designed to face the interior. The at least one pane is a planar light guide, such that light coupled into the pane can propagate via total internal reflection, provided that the conditions for total internal reflection are met. The conditions for total internal reflection are well known to those skilled in the art, particularly from panes used in practice as planar light guides, and therefore need not be discussed in more detail here.

[0010] The illuminateable glass window further includes at least one light module having a light source for generating light, wherein the light module is arranged on or at a first main surface I and / or a second main surface II of the at least one pane of glass in such a way that light generated by the light source can be coupled into the pane of glass and totally reflected within the pane of glass. Therefore, light generated by the light source can be coupled into the pane of glass and is capable of total internal reflection within the pane of glass.

[0011] The first primary surface I and / or the second primary surface II have at least one light-out coupling region, which is referred to below as the "primary light-out coupling region" to distinguish it from the secondary light-out coupling region (see below), and the at least one light-out coupling region is used to couple light that is totally internally reflected within the window pane out of the window pane. The primary light-out coupling region is designed such that totally internally reflected light is coupled out or can be coupled out toward the external environment.

[0012] The light source is arranged in a light guiding element having a body made of an optically transparent cured adhesive, wherein the light guiding element has a light output surface facing the at least one pane on which the main surfaces I and II of the light module are arranged.

[0013] Furthermore, the glass window has a contrast enhancement element, specifically a black print, on the inner side of the at least one primary light output coupling area, which (completely) covers the at least one primary light output coupling area when viewed vertically through the glass window.

[0014] Therefore, the illuminateable glass window according to the invention advantageously allows light out-coupling, i.e., light is coupled into the at least one pane and totally reflected within the pane at the at least one light out-coupling area. The light is coupled out to the external environment (when the pane is installed) or can be coupled out to the external environment, thereby ensuring good visibility of the coupled light in a particularly advantageous manner through contrast-enhancing elements, especially black printing.

[0015] Optically clear adhesives are curable, meaning they can irreversibly enter a cured state. Typically, they are plastic materials that enter a polymer cross-linking state through curing. This significantly distinguishes curable adhesives from thermoplastics, which, although also optically clear, can be reversibly softened by supplying heat. In contrast, once cured, curable adhesives cannot revert to a flowable state. Therefore, optically clear curable adhesives are not non-curable thermoplastic materials. Curable optically clear adhesives can be cured by heat, electromagnetic radiation (preferably UV radiation), and / or chemically. Curing is preferably carried out by supplying heat or by raising the temperature and / or by UV radiation.

[0016] Transparent adhesives, for example, are silicone-based. Optically transparent adhesives are particularly known by the acronym LOCA (Liquid Optical Transparent Adhesive). They are frequently used in touch-sensitive displays, for example, to permanently attach them to LCD displays or even to securely attach plastic coverings to touch-sensitive displays. After application, LOCA is often cured by UV radiation.

[0017] Curable optically clear adhesives may contain or consist of, for example, polyurethane (PU), polyacrylate, polyacetic acid resin, casting resin, epoxy resin, acrylate, or copolymers or mixtures thereof. Optically clear adhesives are advantageously composed of casting resins (particularly polyurethane- or silicone-based casting resins). The housing of the optical module can be used as a casting mold for the curable optically clear adhesive.

[0018] Optically transparent adhesives are typically characterized by the optical refractive index of at least one pane of glass near the window. This is particularly advantageous for the highly efficient coupling of light into the pane. Combined with contrast-enhancing elements, especially black printing, exceptionally good visibility of light coupled out of the pane can thus be achieved in a particularly advantageous manner. Therefore, the advantageous effect of highly efficient light coupling into the pane and contrast enhancement regarding the visibility of light coupled out of the pane to the external environment are combined.

[0019] Another advantage is that the light source is well protected from external influences by the optically transparent adhesive in the optical module.

[0020] In one embodiment of the invention, the optically transparent adhesive has an optical refractive index that differs from the refractive index of the at least one pane by less than 50%, preferably less than 30%, and more preferably less than 10%. This is particularly advantageous for the efficient coupling of light into the pane.

[0021] The optical refractive index of a material can be measured using a conventional refractometer via refractive index determination. Alternatively, the refractive index specified within the scope of this invention can also be determined by ellipsometrics, wherein a commercially available ellipsometer can be used. Light is refracted and / or reflected at the interface between two media with different optical densities and therefore different refractive indices. In particular, it is possible to determine the refractive index of a material by measuring the critical angle of total internal reflection. The refractive index is a material constant, wherein the refractive index depends on the temperature and wavelength of the light used for measurement. It should be understood that the measurement conditions used to measure the refractive index are consistent when measuring different materials. In the context of this invention, unless otherwise explicitly specified, the refractive index is specified in all cases relative to a wavelength of 589 nm. It can be assumed that the measurement principle is known in the art, and therefore does not need to be discussed in more detail here. Refractometers and ellipsometers are commercially available in a wide variety of forms.

[0022] Light is fed into the vehicle's illuminated glass window at one (or both) main surfaces of the window and is visible from the outside. This is a significant technological improvement over known light-in-glass solutions.

[0023] The glass window according to the invention surprisingly exhibits improved light-incident coupling from the light source to the window pane without negatively affecting other optical properties of the pane. Contrast-enhancing elements, particularly black printing, can significantly improve the visibility of light emitted towards the external environment. Furthermore, the glass window allows for modular application; in particular, light modules can be combined with existing or laminated window panes without requiring significant structural changes. The light modules are located on at least one of the two main surfaces of the window pane. Alternatively, the light modules can be arranged on each main surface of the window pane.

[0024] In a preferred embodiment, the optical module is bonded to the main surface on which the optical module is disposed by means of an optically transparent, curable adhesive for the light guiding element. This measure has the advantage that the optical module is reliably and firmly attached to the main surface. In particular, attachment to the main surface can be achieved by curing the optically transparent adhesive. Because there is no other material between the optically transparent adhesive and the pane material, light from the light source can be coupled into the pane particularly efficiently, especially if the refractive indices of the optically transparent adhesive and the pane materials are only slightly different.

[0025] In another preferred embodiment, the at least one primary light-out coupling region includes a light-out coupling hue or a light-out coupling color. In other words, the coupled light is colored or tinted, which further improves the visibility or detectability of the light coupled toward the external environment.

[0026] In another preferred embodiment, the end face edge surface of the pane has a secondary light-out coupling region for coupling light out of the pane. This can be advantageous if light will be coupled out at the edge of the pane, particularly to create a corresponding optical effect in the edge region of the pane. Advantageously, for this purpose, the secondary light-out coupling region has a frosted glass edge. This measure allows the secondary light-out coupling region to be implemented in a simple manner.

[0027] In another preferred embodiment, the light source has a light-emitting surface arranged at an angle to the main surface on which the light module is disposed. This allows light from the light source to be coupled into the window pane in a particularly simple manner, causing it to undergo total internal reflection within the window pane.

[0028] In another preferred embodiment, the glass window has light modules on both a first main surface I and a second main surface II. Each light module includes a light source for generating light. The light modules are arranged on specific main surfaces I and II such that light generated by the light source is coupled into the window pane. This allows a particularly large amount of light to be efficiently coupled into the window pane.

[0029] In another preferred embodiment, the glass window includes a first pane having a first main surface I and a second main surface II, and a second pane having a third main surface (“side III” or “III”) and a fourth main surface (“side IV” or “IV”), wherein the first and second panes are bonded by means of a polymer layer to form a laminated assembly (laminated pane). Laminated panes are frequently used in vehicle construction. It is advantageous to arrange contrast-enhancing elements, particularly black printing, on the third main surface III of the second pane, which allows for a particularly simple technical implementation of the contrast-enhancing elements. In the case of a laminated pane, the aforementioned at least one pane can be understood as the first pane.

[0030] The present invention is further extended to a method for producing an illuminateable glass window according to the invention, the method comprising the following steps: a) Attach at least one optical module to the first main surface I and / or the second main surface II of the at least one pane by curing an optically transparent adhesive. b) A primary optical coupling region is formed in or above the first primary surface I. c) A contrast enhancement element, particularly a black print, is formed on the inner side of the at least one primary light-emitting coupling region, wherein the contrast enhancement element (completely) covers the at least one primary light-emitting coupling region when viewed vertically through a glass window.

[0031] In a preferred embodiment, a primary light-emitting coupling region is formed in the central region of the at least one pane.

[0032] In another preferred embodiment, a secondary light-emitting coupling region is formed in the edge region of the at least one pane, particularly in the form of a frosted glass edge.

[0033] In another preferred embodiment, the illuminateable glass window includes a first pane having a first main surface I and a second main surface II, and a second pane having a third main surface III and a fourth main surface IV, wherein the first pane and the second pane are bonded by means of a polymer layer to form a laminated assembly, wherein contrast-enhancing elements, in particular black printing, are formed on the third main surface III of the second pane.

[0034] The invention also extends to the use of the illuminateable glass window according to the invention in a vehicle, wherein at least one window pane is illuminated, particularly in a spatially localized manner, when the following conditions are met: - The vehicle has been damaged, especially due to parking scrapes or accidents, such as damage to the body or bumper. - If there are living beings in the vehicle, especially children or dogs, - Vehicle doors or windows, especially roof panes, are open. - Parking has already been completed in the no-parking zone. - Keep the vehicle unlocked. - The vehicle has a low fuel level. - Vehicles with internal combustion engines have low battery charge levels. - The battery charge level in electric vehicles is low. - Low tire pressure or a defective tire. - The vehicle's lighting system, particularly the headlights or taillights, is defective. - Implement personalized lighting scenes, such as when a vehicle arrives or leaves. - Another vehicle approaches a vehicle with glass windows to a certain distance or beyond, for example, during a parking operation. and / or - A warning will be displayed to exercise caution when unloading the vehicle or near the vehicle in case of a malfunction.

[0035] In a preferred embodiment of the above-described uses, the at least one window pane is dynamically illuminated. Dynamic illumination of the at least one window pane can be light flickering, an increase or decrease in light intensity, moving light, or a combination thereof. For example, in dynamic illumination, light stripes or arcs can move along the main surface from one side edge of the window pane to the other. Patterned light flickering can also be considered dynamic illumination. Another example of dynamic illumination would be an increase in the intensity of the illumination when a vehicle approaches a vehicle with an illuminateable window at a certain distance, for example, during a parking operation. The closer the vehicle gets after exceeding that distance, the more intensely the at least one window is illuminated. Preferably, depending on the use case, the light flickers and / or moves on the surface of the window pane in different colors.

[0036] Furthermore, the invention extends to the use of the illuminateable glass window (with panes serving as side windows) according to the invention in vehicles for heating side window seals by selective radiant heating for demand-controlled defrosting.

[0037] Various embodiments of the invention may be implemented individually or in any combination. In particular, without departing from the scope of the invention, the features mentioned above may be used not only in the specified combinations, but also in other combinations or individually, unless they are clearly possible and are described only as alternatives to each other.

[0038] Further features of the invention will become apparent from the following description: The object of the present invention is achieved by a glass window comprising at least: at least one first pane having a first main surface and a second main surface, wherein the first pane at least partially propagates coupled-in light; and an optical module comprising a light source for generating light that can be coupled into the first pane, wherein the optical module is disposed in a lower region of the main surface, and the main surface has at least one primary light-out coupling region in an intermediate region and at least one secondary light-out coupling region in an upper region.

[0039] In a preferred embodiment, the light source has a light-emitting surface that can be arranged at an angle to the first main surface of the first pane. Specifically, the light-output surface can be arranged on the first main surface and / or the second main surface of the first pane. Arranging the light source outside the pane eliminates the need for complex drilling into the pane or laminating the light source into the laminated glass pane. Additionally, an electrical conductor for contacting the light source within the pane can be omitted.

[0040] In another embodiment, the optical module, particularly the light guiding element on its outer surface, has a light-reflective coating adapted to reflect light emitted by the light source along the direction of the light output surface. This prevents light from escaping from the light guiding element and improves light propagation.

[0041] Preferably, the optical module includes a housing with an opening at the light output surface. The housing may be a hollow body filled with an optically transparent cured adhesive, wherein the hollow body is made of a thermally dimensionally stable material, particularly plastic, metal, or aluminum. Furthermore, the housing may have two sides arranged opposite the light emitting surface, defining the hollow body with the opening. Additionally, the light guiding element may be designed as a collimator, its side surfaces intended to reflect light emitted by the light source in the direction of the light output surface.

[0042] In an advantageous embodiment of the glass window according to the invention, the refractive index of the optically transparent cured adhesive and the refractive index of the at least one pane are the same. In the context of the invention, the refractive index is specified in all cases relative to a wavelength of 550 nm. The refractive index is essentially independent of the measurement method; it can be determined, for example, by means of ellipsometrics. Ellipsometrists are commercially available. The refractive index of the filling material of the hollow body is determined using the same measurement method used to determine the refractive index of the at least one pane.

[0043] In another embodiment of the glass window according to the invention, the optical module is bonded to the first pane of glass by means of an optically transparent, curable adhesive. In other words, the optical module is glued to the first pane of glass. Alternatively, the optical module can be securely attached to the first pane of glass using adhesive tape. The adhesive tape has an optically transparent adhesive on both sides.

[0044] In another preferred embodiment of the glass window according to the invention, the light module has two or more light sources. Multiple light sources allow for better and more uniform illumination of the illuminateable glass window.

[0045] In another embodiment of the glass window according to the invention, the glass window includes two or more optical modules, each of which is attached to a first main surface and / or a second main surface of the at least one pane of glass using an associated light guiding element. In particular, the optical modules may be arranged in a row on the first main surface of the at least one pane of glass. This makes the optical modules scalable.

[0046] In another embodiment of the glass window according to the invention, the light guiding element may have any geometric cross-sectional shape, such as a circular, quadrilateral, triangular, square, rectangular, pentagonal shape or any other regular or irregular polygonal shape.

[0047] In an advantageous embodiment of the glass window according to the invention, the light source comprises at least one light-emitting diode (LED) (preferably at least one organic light-emitting diode (OLED)) and / or at least one laser diode. This type of light source is particularly bright and efficient.

[0048] In another embodiment of the glass window according to the invention, the light module has a cooling device for cooling the light source. This allows high-power LEDs to be used as the light source, since these LEDs require cooling during operation.

[0049] Within the meaning of this invention, "transparent" is understood to mean that an object, particularly an optically transparent adhesive, an optically coupled device, and / or a transparent body (e.g., a window pane), has a transmittance of greater than 20%, preferably greater than 50%, particularly preferably greater than 70%, and especially greater than 85% in the visible spectrum.

[0050] In another embodiment, the first pane is connected to the second pane via an intermediate layer to form a laminated pane.

[0051] In principle, all electrically insulating substrates that are thermally stable, chemically stable, and dimensionally stable under the production and use conditions of the glass windows according to the present invention are suitable as window panes.

[0052] The at least one pane, or the first pane and / or (if present) the second pane, preferably contains or consists of: glass, particularly preferably flat glass, most particularly preferably float glass, such as soda-lime glass, borosilicate glass, or quartz glass; or transparent plastic, preferably rigid transparent plastic, particularly polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyester, polyvinyl chloride, and / or mixtures thereof. The first pane and / or the second pane is preferably transparent, particularly for the use of the pane as a front window (also known as a windshield) or rear window of a vehicle, or for other uses where high light transmittance is required. In the sense of the invention, "transparent" means that the pane has a transmittance of greater than 70% in the visible spectrum. In particular, at least the first pane and preferably the second pane are composed of transparent glass.

[0053] However, for panes that are not within the driver's traffic-related field of vision (e.g., for roof panes), the transmittance can also be much lower, for example, greater than 5%. For this purpose, for example, the second pane and / or intermediate layer can be tinted or colored.

[0054] The thickness of the at least one pane, or the first pane and / or the second pane, can vary widely and is therefore adapted to the requirements of individual cases. Preferably, a standard thickness of 1.0 mm to 25 mm, more preferably 1.4 mm to 2.5 mm, is used for vehicle glass, and preferably 4 mm to 25 mm is used for furniture, fixtures, and buildings. The size of the pane can vary widely and depends on the dimensions required for the application according to the invention. The at least one pane, or the first pane and the second pane, have a thickness from 200 cm. 2 Up to 20 m 2 The surface is as commonly seen, for example, in vehicle construction and building. Preferably, the window pane is flat, or slightly or significantly curved along one or more spatial directions.

[0055] In the case of laminated panes, the first pane and the second pane are connected to each other by at least one intermediate layer. The intermediate layer is preferably transparent, or colored or tinted. The intermediate layer preferably contains or is made of at least one polymer, preferably polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), and / or polyethylene terephthalate (PET). However, the intermediate layer may also contain, for example, polyurethane (PU), polypropylene (PP), polyacrylate, polyethylene (PE), polycarbonate (PC), polymethyl methacrylate, polyvinyl chloride, polyacetic acid resin, casting resin, acrylate, fluorinated ethylene propylene, polyvinyl fluoride, and / or ethylene tetrafluoroethylene, or copolymers or mixtures thereof. The intermediate layer may be formed from a single film or even from multiple films arranged one on top of another, wherein the film thickness is preferably from 0.025 mm to 1 mm, typically 0.38 mm or 0.76 mm. The intermediate layer may preferably be thermoplastic, and after lamination, the first pane, the second pane, and any other intermediate layer can be bonded to each other. Particularly advantageous is the so-called acoustic damping intermediate layer, which preferably consists of three PVB layers, wherein the intermediate layer is designed to be softer than the two outer layers.

[0056] The interlayer can also be a functional interlayer, particularly an interlayer that reflects infrared radiation, absorbs infrared radiation, absorbs UV radiation, is at least partially colored, and / or is at least partially tinted. For example, a thermoplastic interlayer can also be a bandpass filter.

[0057] When the laminated pane according to the invention is provided, for example, in an opening in a vehicle or building, the first pane is arranged closer to the external environment in order to separate the interior from the exterior environment.

[0058] The at least one pane or the first pane and / or (if present) the second pane may have other suitable layers known per se, such as an anti-reflective coating, a non-stick coating, a scratch-resistant coating, a photocatalytic coating, a sun-protective coating, or a low-emissivity coating.

[0059] In a preferred embodiment, at least one window pane is provided with a low-emissivity coating. The low-emissivity coating is an emissivity-reducing coating that reflects IR radiation, particularly thermal radiation emitted by heated glass windows. This reduces the penetration of thermal radiation into the vehicle interior, resulting in less heating of the interior. In winter, when outside temperatures are low, it prevents heat from radiating from the interior to the outside environment. The transparent emissivity-reducing coating may contain reflective layers, for example, based on indium tin oxide (ITO) or other transparent conductive oxides (TCOs), as known, for example, from WO2013 / 131667A1. When used as a roof window pane, these reflective layers reflect thermal radiation into the vehicle interior, thereby significantly increasing the comfort of the vehicle occupants. The low-emissivity coating preferably does not contain a silver layer and can therefore be placed, for example, on the first main surface of the first window pane without causing corrosion problems. Preferably, the low-emissivity coating is disposed on the second main surface of the first window pane, or (if present) on the fourth main surface of the second window pane.

[0060] In addition, the glass window may optionally have other functional elements, especially electronically controllable optical elements, such as PDLC elements, electrochromic elements, etc., which are usually arranged between the first and second panes.

[0061] The glass window additionally has at least one light-out coupling device for coupling light out of the at least one pane via a first main surface (I). Light coupled into the pane is coupled out of the pane via the light-out coupling device, thus illuminating the first pane. The light-out coupling device is adapted to couple out a portion of the light guided in the pane by total internal reflection at the first main surface (I) (preferably by scattering, reflection, refraction, or diffraction). The light-out coupling device is disposed on or introduced therein on the first main surface (I) and / or the second main surface (II). For this purpose, the light-out coupling device is preferably introduced by laser structuring, mechanical texturing (such as sandblasting), and / or by etching into the first main surface and / or the second main surface.

[0062] Alternatively or in combination, the optical output coupling device may be integrally connected to the first main surface (I) and / or the second main surface (II) of the at least one pane, preferably by printing or coating pigments, pastes or particles (particularly preferably, light scattering, light refraction or light reflection particles).

[0063] In a preferred embodiment, the laminated pane is a roof pane or front pane (windshield) of a motor vehicle, and the first pane is an outer pane and the second pane is an inner pane. This achieves the technical advantages of using a glass window arrangement, for example, in particularly suitable locations.

[0064] In a laminated pane, the first pane and the second pane are connected to each other via at least one intermediate layer. The first pane and the second pane are laminated together via the intermediate layer, for example by autoclave process, vacuum bag process, vacuum ring process, calendering process, vacuum laminator or a combination thereof. The panes are typically joined under the action of heat, vacuum and / or pressure.

[0065] The thermoplastic interlayer is preferably provided as a film.

[0066] A light source is arranged in a light guiding element, wherein the light guiding element has a light output surface facing a first main surface, and the light guiding element has a body made of an optically transparent cured adhesive. Advantageously, the primary light output coupling region contains a light output coupling hue or a light output coupling color.

[0067] The basis of the light-injection coupling according to the present invention is an OCA-based light-injection coupling with embedded LEDs for LiG solutions. The advantage here is that the light-injection coupling module is permanently integrated into the glass window and all electronics are hidden beneath the side photomask guide and are waterproof. It is also possible to use Prims film to couple light into planar light guides for lighting applications.

[0068] In the glass window process, the first pane on the second main surface or the second pane on the third main surface has black printing at least at the height and surface of the primary light-out coupling area.

[0069] To improve the visibility of the coupled light in the primary out-coupled region, a black print is advantageously applied to increase contrast.

[0070] In another embodiment of the glass window according to the invention, the secondary light output coupling region preferably has a frosted glass edge.

[0071] Another advantage of the arrangement according to the invention is the secondary out-coupling area. Because the parking lights are typically movable, the lower primary out-coupling area is obscured by the vehicle body, but the polished upper edge of the secondary out-coupling area of ​​the outer glass is always visible. Due to the geometry of the glass and the blurred appearance of the frosted edge, this edge is illuminated when light enters the outer glass.

[0072] The object of the present invention is further achieved by a method for producing an illuminateable glass window according to the present invention, wherein at least the following are performed: a) The optical module is attached to the lower region of the first main surface of the first pane by curing an optically transparent adhesive. b) Preferably, a primary light-emitting coupling region is applied to the central region of the second primary surface of the first pane of the light-emitting area by means of a light-emitting coupling hue or light-emitting coupling color. c) Preferably, the secondary light-emitting coupling region in the upper region of the first window pane is applied by means of the frosted glass edge. d) Method steps (a), (b), and (c) are interchangeable, and e) Apply black print to the second primary surface of the first pane at least at the height and surface of the primary light-out coupling region.

[0073] The object of the present invention is further achieved by a method for producing a glass window according to the present invention, wherein at least the following are performed: a) Preferably, a primary light-out coupling region is applied to the central region of the second primary surface of the first pane of the light-out coupling area by means of a light-out coupling hue or light-out coupling color. b) Preferably, the secondary light-emitting coupling region in the upper region of the first window pane is applied by means of the edge of the frosted glass. c) Method steps (a) and (b) are interchangeable, and d) Apply black print to the third primary surface of the second pane at least at the height and surface of the primary light-out coupling region.

[0074] e) By means of a polymer layer, the first pane is connected to the second pane via a third main surface (II) to form a laminated assembly, and f) Attach the optical module to the lower region of the first main surface of the first pane by curing an optically transparent adhesive.

[0075] Curable optically transparent adhesives can be cured by heat, electromagnetic radiation (preferably UV radiation), and / or chemical means. Curing is preferably carried out by supplying heat or by raising the temperature and / or by UV radiation.

[0076] Preferably, before filling the housing in step c), a light-reflective coating is applied to the housing, particularly to the inner surface of the housing. The reflective coating may have been applied to the adhesive tape beforehand, and then the adhesive tape with the reflective coating is placed on the housing.

[0077] In one embodiment of the method according to the invention, in step e), the optical module is bonded to the first pane by means of a thin layer of optically transparent curable adhesive.

[0078] In contrast to known manufacturing methods in the prior art, the method according to the invention avoids the use of additional components in the panes, particularly in laminated panes, and minimizes problems related to localized defects in laminated panes (e.g., bubble formation in laminated panes). This is a major advantage of the invention.

[0079] The object of the present invention is further addressed by means of glass windows, specifically for vehicle windows and their use in architectural glass and building glass.

[0080] The object of the present invention is further achieved by using a glass window according to the present invention in vehicle windows to preferably render the color on the vehicle windows. To provide spatially localized feedback on the vehicle's condition even in the event of damage. Report defective tires or parking scratches. If children or dogs are left in the vehicle Keep the car doors, windows, or roof open. When parking in an unauthorized area, If the vehicle is not locked When the car is charging is displayed As an indicator of a weak battery or low fuel level, In the case of defective headlights and taillights In the case of a flat tire or low tire pressure, If the car bumper is damaged This serves as a warning to be cautious when unloading a vehicle or near a vehicle in case of a breakdown. In the case of a collision with another vehicle, show the location of the damage.

[0081] The glass window according to the present invention is an innovative personal assistant serving as a human-machine interface (HMI) in a vehicle window.

[0082] The glass window according to the invention simplifies communication with the vehicle. It notifies the driver when necessary, such as when he approaches his vehicle. This glass window according to the invention solves the problem that today's automotive HMIs are only implemented inside the vehicle via displays. The glass window according to the invention provides a superior way to enable external HMIs.

[0083] The glass window according to the invention exhibits surprising and unexpected effects. Because the LEDs heat up during operation, they can be advantageously used to heat the side window seals for defrosting. This is demand-controlled defrosting of the side windows using selective radiant heating. Because the glass window according to the invention is based on visible light, the most functional heat distribution is achieved when all LED colors are used. The most effective defrosting function of the glass window according to the invention is achieved through white ambient light used for all movable glass windows, and therefore for the front and rear side windows.

[0084] Proximity sensors and collision sensors have been used on the exterior of vehicles. Presence sensors have been implemented for the interior of automobiles. According to the present invention, sensor technology is used in the glass windows according to the invention.

[0085] Therefore, the present invention claims protection for the following: A glass window (100) comprising at least: - A first pane (1) having a first primary surface (IV) and a second primary surface (II), wherein the first pane (1) at least partially propagates coupled-in light (3.2). - Optical module (3), which includes a light source (3.1) for generating light (3.2) that can be coupled into the first pane (1). The optical module (3) is arranged in the lower region of the main surface (I), and the main surface (II) has at least one primary optical output coupling region (5) in the middle region and at least one secondary optical output coupling region (7) in the upper region.

[0086] The glass window (100) mentioned above additionally includes: A second pane (2) having a third main surface (III) and a fourth main surface (IV), wherein the second pane (2) and the first pane (1) are joined by means of a polymer layer (4) to form a laminated assembly (100').

[0087] In the glass window (100) as described above, the first pane (1) and the second pane (2) are laminated together by means of a PVB film to form a laminated assembly (100').

[0088] In the glass window (100) as described above, a light source (3.1) is arranged above or in the light guiding element (3.3), wherein the light guiding element (3.3) has a light output surface (3.4) facing the main surface (I), and the light guiding element (3.3) has a body made of an optically transparent cured adhesive.

[0089] In the glass window (100) as described above, the primary light-out coupling region (5) preferably includes a light-out coupling hue or a light-out coupling color.

[0090] In the glass window (100) as described above, the secondary light output coupling region (7) preferably has a frosted glass edge.

[0091] In the glass window (100) as described above, the first pane (1) on the second main surface (II) or the second pane (2) on the third main surface (III) has black print (6) at least in the height neutral area of ​​the primary light-out coupling region (5).

[0092] In the glass window (100) as described above, the light source (3.1) has a light-emitting surface arranged at an angle to the first main surface (I) of the first window pane (1).

[0093] In the glass window (100) as described above, the light module (3) is bonded to the main surface (I) of the first window pane (1) by means of an optically transparent curing adhesive.

[0094] A method for producing a glass window (100) as described above, wherein at least the following are performed: a) The optical module (3) is attached to the lower region of the first main surface (I) of the first pane (1) by curing an optically transparent adhesive. b) Preferably, the primary light-out coupling region (5) in the central region of the second main surface (II) of the first pane (1) is applied using a light-out coupling hue or light-out coupling color. c) Preferably, the secondary light-emitting coupling region (7) applied in the upper region of the first window pane (1) serves as the edge of the frosted glass. d) The order of method steps (a), (b), and (c) is interchangeable, and e) Apply black print (6) to the second main surface (II) of the first pane (1) at least in the height and surface of the primary light-out coupling region (5).

[0095] In the method described above for producing the laminated assembly (100') described above, at least the following are performed: a) Preferably, the primary light-out coupling region (5) in the central area of ​​the second main surface (II) of the first pane (1) is applied using a light-out coupling hue or light-out coupling color. b) Preferably, the secondary light-emitting coupling region (7) applied in the upper region of the first window pane (1) serves as the edge of the frosted glass. c) The order of steps (a) and (b) is interchangeable. d) Apply black print (6) to the third main surface (III) of the second pane (1) at least in the height and surface of the primary light-out coupling region (5). e) By means of a polymer layer (4), the first pane (1) via the second main surface (II) is connected to the second pane (2) via the third main surface (III) to form a laminated assembly (100'), and f) The optical module (3) is attached to the lower region of the first main surface (I) of the first pane (1) by means of a curable optically transparent adhesive.

[0096] In the method for coupling light into and out of the glass window (100) as described above, at least the following are performed: a) The coupled light (3.2) is emitted into the main surface (I) in the lower region of the first pane (1). b) Coupled light (3.2) at least partially coupled out from at least one primary light-out coupling region (5) in the central region of the main surface (II), and c) Couple the coupled light (3.2) from at least one secondary light-out coupling region (7) in the upper region of the main surface (I).

[0097] A glass window (100) as described above is used as a vehicle window or as architectural glass.

[0098] In one of the following applications, a glass window (100) as described above is used in a vehicle (101) to preferably render the color (9) on the vehicle window. To provide spatially localized feedback on the condition of the vehicle (101) in the event of damage. Indicates a defective tire or a parking scratch. If a child or dog is left in the vehicle (101), Keep the car doors, windows, or roof open. When parking in a no-parking zone, If vehicle (101) remains unlocked, When displaying the vehicle's battery level, As an indicator of a weak battery or low fuel level. If the headlights and taillights are defective If there is a flat tire or low tire pressure, If the bumper of vehicle (101) is damaged, As a warning to be cautious when unloading vehicle (101) or near vehicle (101) in case of malfunction, In the event of a collision with another vehicle (102), the location of the damage is shown.

[0099] A glass window (100) as described above is used in a vehicle (101) for heating the side window seals by selective radiant heating for on-demand defrosting. Attached Figure Description

[0100] The invention will be explained in more detail below with reference to the accompanying drawings and exemplary embodiments. The drawings are schematic and not drawn to scale. The drawings do not limit the invention in any way.

[0101] In the attached diagram: Figure 1 A top view of a glass window, preferably a vehicle window, is shown. Figure 2 A schematic cross-sectional view is shown in a single-pane safety glass (ESG) window along line A-A' through a top view of the vehicle window. Figure 3 A schematic cross-sectional view of a laminated safety glass (ESG) window is shown along line A-A' through a top view of the vehicle window. Figure 4 The illustration shows an schematic representation of an application according to the invention, wherein a color is displayed when unlocked. Figure 5 A schematic representation of another application according to the invention is shown, wherein the color is a color gradient indicating possible damage. Detailed Implementation

[0102] Figure 1 A top view of an embodiment of an illuminateable glass window 100 according to the present invention is shown, which is here a vehicle window, such as a side window. The glass window may alternatively be a windshield, rear window pane, or roof window pane. Line A-A' is shown, and a cross-section through this line will be drawn below. The lower region shows a top view of the window pane guides with seals 8, 8'.

[0103] Figure 2 It shows the passage along Figure 1 A schematic cross-sectional view of the top view of the glass window 100 in the diagram, along line A-A'. Figure 2 The cross-section clearly shows the structure and composition of the glass window 100, in this case, the glass window is, for example, a single-pane safety glass.

[0104] The glass window 100 includes: a pane 1 having a first main surface I (also called an outer surface) and a second main surface II (also called an inner surface); and a light module 3 including a light source 3.1 for generating light 3.2 that can be coupled into the pane 1. The first main surface I and the second main surface II are connected to each other via end face edge surfaces 10. The light source 3.1 is arranged in a light guiding element 3.4. The light guiding element 3.4 has a light output surface 3.3 facing the pane 1. The light guiding element 3.4 has a body made of an optically transparent cured adhesive. The light module 3 is a so-called OCA wedge or prism foil arrangement. OCA-based light-in coupling with embedded LEDs is used. Regarding the installation state of a vehicle window (e.g., a side window), the light module 3 is located in the lower region on the first main surface I. The pane 1 has at least one primary light-out coupling region 5 on the second main surface II for coupling light out toward the external environment. The primary light-out coupling region 5 is preferably a light-out coupling hue or a light-out coupling color. The light source 3.1 has a light-emitting surface 11, which is arranged at an angle to the first main surface I, preferably at an angle of 5° to 85° to the normal to the first main surface I. Regarding the installation state of the vehicle window (side window), the window pane 1 has a secondary light-emitting coupling region 7 in the upper region. The secondary light-emitting coupling region 7 is preferably a frosted glass edge, formed on the end face edge surface 10. The glass window 100 is guided and secured by a side window guide having seals 8 and 8'.

[0105] Figure 3 A schematic cross-sectional view is shown along line A-A' through a top view of glass window 100, which is also a vehicle window. Figure 3 The cross-section clearly shows the structure and composition of the glass window 100, which is laminated safety glass (VSG).

[0106] The glass window 100 includes: a first pane 1 having a first main surface I and a second main surface II; and a light module 3. The first main surface I and the second main surface II are connected to each other via end face edge surfaces 10. The first pane 1 has light-emitting coupling regions 5 and 7. In this respect, the structure corresponds to Figure 2The structure shown is for a single-pane safety glass 100. The glass window 100 additionally has a second pane 2, which has a third main surface III and a fourth main surface IV. The second pane 2 has black printing 6 on the third main surface III. To improve the visibility of coupled light at the primary light-emitting coupling region 5, the black printing 6 is applied at least at the height and surface of the primary light-emitting coupling region 5 (i.e., where the primary light-emitting coupling region 5 is completely covered in the overlap with the primary light-emitting coupling region 5 transmitted through the glass window) to increase contrast. The first pane 1 and the second pane 2 are preferably bonded together via a polymer layer 4 (e.g., a PVB film) to form a laminated assembly. The glass window 100, designed as laminated safety glass (VSG), is guided and secured by side window guides having seals 8 and 8'.

[0107] The first pane 1 is provided to at least partially propagate coupled-in light 3.2 via total internal reflection. The dimensions of the first pane 1 may be, for example, 1.4 m x 1.5 m. The first pane 1 is made of, for example, soda-lime glass. The thickness of the first pane 1 is, for example, 3 mm, 2.1 mm, or 1.6 mm. The thickness of the first pane 1 may be adapted to a particular application. The first pane 1 may contain, for example, prestressed, partially prestressed, or non-prestressed glass. Alternatively, the first pane 1 may be composed of plastic (e.g., polycarbonate). Specifications regarding dimensions, pretension, and materials preferably also apply to the second pane 2, wherein the first pane 1 and the second pane 2 may be substantially the same as each other or alternatively different from each other.

[0108] The optical module 3 includes a light source 3.1 for generating light 3.2 that can be coupled into the first pane 1, wherein the light source 3.1 is arranged within a light guiding element 3.4. The light guiding element 3.4 has a light output surface 3.3 facing the first pane 1. The optical module 3 is attached to the first pane 1. The light source 3.1 is entirely located within the light guiding element 3.4. Furthermore, the light guiding element 3.4 comprises a body made of an optically transparent cured adhesive. The advantage here is that the light source 3.1, as part of the optical module 3 (e.g., in the form of a glass-injected module), is firmly bonded to the glass window 100, and all electronic components can be housed below the side light guide and are therefore waterproof.

[0109] The optical module 3 further preferably includes a housing having an opening at the light output surface 3.3. The housing is designed as a hollow body made of a thermally dimensionally stable material, particularly plastic, metal, or aluminum. Furthermore, the housing has external surfaces facing the external environment, arranged opposite to the light output surface 3.3 (also called the light emitting surface), which define the hollow body with the opening.

[0110] The curable optically clear adhesive of the light guiding element 3.4 is cured, for example, by heat, electromagnetic radiation (preferably UV radiation), and / or chemically. Curing is preferably carried out by supplying heat or by raising the temperature and / or by UV radiation. The curable optically clear adhesive may, for example, contain or consist of polyurethane (PU), polyacrylate, polyacetic acid resin, casting resin, epoxy resin, acrylate, or copolymers or mixtures thereof. The optically clear adhesive is advantageously composed of casting resin (particularly polyurethane- or silicone-based casting resins). The refractive index of the light guiding element 3.4 is preferably equal to or nearly equal to the refractive index of the first pane 1.

[0111] The optical module 3 is bonded to the first pane 1 (also known as the outer pane) using an optically transparent, curable adhesive. Alternatively, the optical module 3 can be permanently attached to the first pane 1 using adhesive tape. The adhesive tape has an optically transparent adhesive on both sides.

[0112] The light source 3.1 is preferably an LED. The light source 3.1 may include one or more light-emitting diodes (LEDs, LED lamps). The light source 3.1 may also include an organic light-emitting diode (OLED) or a high-power LED. The light beam 3.2 of the light source 3.1 is guided toward the first main surface I of the first pane 1.

[0113] The first pane 1 further includes an optical output coupling device. The optical output coupling device at the primary optical output coupling region 5 couples light 3.2 out of the first pane 1. The optical output coupling device for coupling light 3.2 at the primary optical output coupling region 5 can be arranged on the second main surface II or the first main surface I of the first pane 1. At the location where the optical output coupling device is arranged, light 3.2 can be emitted from the first pane 1 via the first main surface I (i.e., toward the external environment).

[0114] The primary light-emitting coupling region 5 can be located at any point on the first main surface I or the second main surface II of the first pane 1. The light-emitting coupling device may include a textured portion of the main surface I or II, in which total internal reflection within the first pane 1 is prevented and light exits the first pane 1 via the first main surface I. The light-emitting coupling device may include an embossed material on the second main surface II or light-scattering, light-refracting, light-diffusing, or light-reflecting particles or cavities introduced into the first pane 1, or it may be a frosted glass edge.

[0115] Figure 4A schematic representation of an application according to the invention is shown, wherein color 9 is displayed on the glass window 100 according to the invention when vehicle 101 is unlocked. Color 9 is displayed on the glass window 100 when a user approaches vehicle 101 and unlocks it using unlock transmitter 102, and can convey various things to the driver depending on the background. In various use cases, the system provides the driver with up-to-date spatial localization feedback on the status of vehicle 101. Feedback can also be used when the driver is inside vehicle 101. The system utilizes the dynamic color 9 moving around the glass window 100 to convey the current status of vehicle 101 to the driver, for example, to determine the location of potential damage or to indicate the charging status of vehicle 101. This improves the user's sense of security. The glass window 100 is automatically activated when a user approaches their vehicle 101. During this process, the driver receives information while standing outside vehicle 101. The glass window 100 displays the status of vehicle 101 and thus indicates whether vehicle 101 is in a safe condition to begin the journey. If vehicle 101 has a problem, such as a flat tire or a parking scratch, the driver is notified through the glass window 100, for example, by using a pulsating red light 9.

[0116] Figure 5 A schematic representation of another application of the illuminated glass window 100 according to the invention is shown. This illustrates a collision between two vehicles 101, 101'. In this case, color 9 is a gradient indicating the possible damage to vehicle 101. When the driver returns to vehicle 101, red 9 can appear on one to all windows to indicate the location of the damage.

[0117] Here are some exemplary use cases. Use the window indicator 100 in the following situations: when a child or dog is left in vehicle 101, when a door, window, or roof remains open, when parked in an unauthorized area, when vehicle 101 is not locked, to indicate vehicle charging, as an indication of a weak battery or low fuel, as a warning to others near vehicle 101 to be careful (e.g., when unloading vehicle 101 or in the event of a malfunction), when lights need to be turned off (such as headlights and taillights, interior lights), when changing lights, in the event of a flat tire or low tire pressure, and when the vehicle bumper is damaged.

[0118] List of reference numerals 1 pane / First pane 2 Second Window 3 optical modules 3.1 Light source 3.2 Light 3.3 Light Output Surface 3.4 Light guiding element 4 Polymer Layer 5. Primary optical coupling region 6 Black Printed Materials 7 Secondary optical coupling region 8. Side window guide with seals 8' Side window guide with seal 9 colors 10 Edge surfaces 11 Light-emitting surface 100 glass windows Vehicles 101 and 101' 102 Unlock the launcher I. First Main Surface II Second Main Surface III. Third Primary Surface IV. Fourth Primary Surface AA' passes through the cross section of the glass window 100.

Claims

1. A lightable glass window (100) comprising: - At least one pane (1) for separating an interior space from an external environment, the at least one pane having a first main surface (I) and a second main surface (II) connected to each other by an end face boundary surface (10), wherein the first main surface (I) is intended to face the external environment and the second main surface (II) is intended to face the interior space, wherein the pane (1) is a planar light guide such that light (3.2) coupled into the pane (1) can propagate by total internal reflection. - Includes at least one optical module (3) for generating light (3.2), wherein the optical module (3) is arranged on the first main surface (I) and / or the second main surface (II) such that the light (3.2) generated by the light source (3.1) is coupled into the window pane (1) and is totally internally reflected in the window pane (1). The first main surface (I) and / or the second main surface (II) have at least one primary light-out coupling region (5) for coupling total internal reflection light out of the pane (1), wherein the primary light-out coupling region (5) is configured such that the total internal reflection light can be coupled out to the external environment. The light source (3.1) is arranged in a light guiding element (3.4), which has a body made of an optically transparent cured adhesive. The light guiding element (3.4) has a light output surface (3.3), on which the main surfaces (I, II) of the optical module (3) are arranged. The glass window (100) has a contrast enhancement element, particularly a black print (6), on the inner side of the at least one primary light output coupling area (5), which covers the at least one primary light output coupling area (5) when viewed vertically through the glass window (100).

2. The illuminated glass window (100) according to claim 1, wherein the light module (3) is bonded to the main surface (I, II) on which the light module (3) is disposed by means of an optically transparent curable adhesive of the light guiding element (3.4).

3. The illuminateable glass window (100) according to claim 1 or 2, wherein, The at least one primary light output coupling region (5) includes a light output coupling hue or a light output coupling color.

4. The illuminateable glass window (100) according to any one of claims 1 to 3, wherein, The end face edge surface (10) of the at least one pane (1) has a secondary light-out coupling region (7) for coupling light out of the pane (1).

5. The illuminateable glass window (100) according to claim 4, wherein, The secondary optical coupling region (7) has a frosted glass edge.

6. The illuminateable glass window (100) according to any one of claims 1 to 5, wherein, The light source (3.1) has a light emitting surface (11) arranged at a certain angle to the main surface (I, II) on which the light module (3) is arranged.

7. The illuminateable glass window (100) according to any one of claims 1 to 6, having light modules (3) on both the first main surface (I) and the second main surface (II), each light module comprising a light source (3.1) for generating light (3.2), wherein, The optical module (3) is arranged on the relevant main surfaces (I, II) such that the light generated by the light source (3.1) is coupled into the window pane (1).

8. The illuminateable glazed window (100) according to any one of claims 1 to 7, comprising a first pane (1) having a first main surface (I) and a second main surface (II), and a second pane (2) having a third main surface (III) and a fourth main surface (IV), wherein, The first pane (1) and the second pane (2) are joined by means of a polymer layer (4) to form a laminated assembly.

9. The illuminated glass window (100) according to claim 8, wherein the contrast enhancement element, in particular the black print (6), is arranged on the third main surface (III) of the second pane (2).

10. A method for producing an illuminateable glass window (100) according to any one of claims 1 to 9, the method comprising the following steps: a) Attach at least one optical module (3) to the first main surface (I) and / or the second main surface (II) of the at least one pane (1) by curing an optically transparent adhesive. b) A primary optical coupling region (5) is formed in or on the first main surface (I). c) A contrast enhancement element, particularly a black printout (6), is formed on the inner side of the at least one primary light-emitting coupling region (5), wherein, When viewed vertically through the glass window (100), the contrast enhancement element covers the at least one primary light output coupling region (5).

11. The method according to claim 10, wherein, The primary light output coupling region (5) is formed in the central region of the at least one window pane (1).

12. The method according to claim 10 or 11, wherein, The secondary light output coupling region (7) is formed in the edge region (10) of the at least one window pane (1), particularly in the form of a frosted glass edge.

13. The method according to any one of claims 10 to 12, wherein, The illuminated glass window includes a first pane (1) having a first main surface (I) and a second main surface (II), and a second pane (2) having a third main surface (III) and a fourth main surface (IV), wherein the first pane (1) and the second pane (2) are joined by means of a polymer layer (4) to form a laminated assembly, wherein the contrast enhancement element, in particular black print (6), is formed on the third main surface (III) of the second pane (2).

14. Use of an illuminateable glass window (100) according to any one of claims 1 to 9 in a vehicle (101), wherein the at least one window pane (1) is illuminated, particularly in a spatially localized manner, if the following conditions are met: - The vehicle (101) has been damaged, particularly due to parking scrapes or accidents, such as damage to the body or a damaged bumper. - There are living beings, particularly children or dogs, in the vehicle (101). - Vehicle doors or windows, especially the roof, are open. - Parking has already been completed in the no-parking zone. - The vehicle (101) remains unlocked. - The vehicle (101) has a low fuel level, - Vehicles with internal combustion engines have low battery charge levels. - The battery charge level in electric vehicles is low. - Low tire pressure or a defective tire. - The lighting system of the vehicle (101), particularly the headlights or taillights, is defective. - Implement personalized lighting scenes, - Another vehicle approaches the vehicle with the glass window to a certain distance or beyond that distance, and / or - A warning will be displayed to be careful when unloading the vehicle (101) or near the vehicle (101) in the event of a malfunction.

15. The illuminateable glass window (100) according to any one of claims 1 to 9 is used in a vehicle (101) for heating the side window seals by selective radiant heating for on-demand defrosting.

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