Laminated glass

Abstract

This technology provides a way to blur the presence of LEDs when they are off, and to reduce their glare when they are on. [Solution] The laminated glass comprises a first glass plate, an interlayer, and a second glass plate in that order from the outside to the inside of the vehicle, and is installed on the ceiling of the vehicle. The interlayer has a first interlayer and a second interlayer in that order from the outside to the inside of the vehicle. The laminated glass is provided with an LED-equipped film at the interface between the first interlayer and the second interlayer, which consists of a film and an LED supported by the film. The laminated glass is provided with a scattering layer that scatters light emitted from the LED at a position that overlaps with at least the optical axis of the LED. The scattering layer is provided on the inside of the vehicle than the second interlayer, and the second interlayer is a colored interlayer containing a coloring agent.

Description

[Technical Field]

[0001] This disclosure relates to laminated glass. [Background technology]

[0002] The laminated glass described in Patent Document 1 comprises a first glass plate, a second glass plate, an intermediate adhesive layer that bonds the first glass plate and the second glass plate, and a light source. This laminated glass has a scattering layer at the interface between the intermediate adhesive layer and the second glass plate, and the scattering layer extracts light to the inside of the vehicle. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] International Publication No. 2023 / 153306 [Overview of the project] [Problems that the invention aims to solve]

[0004] One possible solution is to place an LED (Light Emitting Diode) between the first and second glass plates that make up the laminated glass. In this case, the LED could be visible to passengers in the vehicle when it was off. Also, when the LED was on, passengers in the vehicle could find it dazzling.

[0005] One embodiment of the present disclosure provides a technology that can blur the presence of an LED when it is turned off and reduce the glare of an LED when it is turned on. [Means for solving the problem]

[0006] A laminated glass according to one embodiment of the present disclosure comprises a first glass plate, an interlayer, and a second glass plate in that order from the outside to the inside of the vehicle, and is mounted on the ceiling of a vehicle. The interlayer has a first interlayer and a second interlayer in that order from the outside to the inside of the vehicle. The laminated glass includes an LED-equipped film at the interface between the first interlayer and the second interlayer, which is composed of a film and an LED supported by the film. The laminated glass includes a scattering layer that scatters light emitted from the LED at a position that overlaps with at least the optical axis of the LED. The scattering layer is provided on the inside of the vehicle than the second interlayer, and the second interlayer is a colored interlayer containing a coloring agent. [Effects of the Invention]

[0007] According to one embodiment of the present disclosure, the presence of the LED can be obscured when the LED is turned off, and the glare of the LED can be reduced when the LED is turned on. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a cross-sectional view of laminated glass according to one embodiment. [Figure 2] Figure 2 is a cross-sectional view of laminated glass according to the first modified example. [Figure 3] Figure 3 is a cross-sectional view of laminated glass according to the second modified example. [Figure 4] Figure 4 is a cross-sectional view of laminated glass according to the third modified example. [Figure 5] Figure 5 is a cross-sectional view showing an example of a and h. [Figure 6] Figure 6 is a cross-sectional view showing an example of the measurement locations for Tv1 and Tv2. [Figure 7] Figure 7 is a plan view showing an example of the measurement locations for Haze1 and Haze2. [Modes for carrying out the invention]

[0009] Hereinafter, modes for carrying out the present disclosure will be described with reference to the drawings. In each drawing, identical or similar configurations are denoted by identical reference numerals, and description thereof may be omitted. In the specification, the symbol "~" indicating a numerical range means that the numerical values described before and after it are included as the lower limit and the upper limit. Numerical ranges include rounded ranges.

[0010] Referring to Fig. 1, a laminated glass 1 according to an embodiment will be described. The laminated glass 1 includes a first glass plate 10, a second glass plate 20, and an intermediate film 30. The intermediate film 30 bonds the first glass plate 10 and the second glass plate 20. The laminated glass 1 includes the first glass plate 10, the intermediate film 30, and the second glass plate 20 in this order from the vehicle exterior side toward the vehicle interior side.

[0011] The laminated glass 1 has a plate shape. Although the laminated glass 1 is flat in Fig. 1, it may be in the shape of a curved plate. The laminated glass 1 is used as a window glass for vehicles. The vehicle is typically an automobile, but may also be a railway vehicle. When the laminated glass 1 is used as a window glass for an automobile, the laminated glass 1 is usually in the shape of a curved plate that is convex toward the outside of the vehicle.

[0012] The laminated glass 1 is attached to the ceiling of a vehicle. That is, the laminated glass 1 is used as a roof glass.

[0013] The first glass plate 10 is provided on the vehicle exterior side, and the second glass plate 20 is provided on the vehicle interior side. Although the first glass plate 10 and the second glass plate 20 are flat in Fig. 1, they may be in the shape of a curved plate. The first glass plate 10 and the second glass plate 20 have a rectangular shape when viewed from the vehicle exterior side or the vehicle interior side, but the shape is not particularly limited.

[0014] In the present embodiment, the first glass plate 10 and the second glass plate 20 are formed of inorganic glass. Inorganic glass is superior in scratch resistance compared to organic glass. The first glass plate 10 and the second glass plate 20 may be formed of the same inorganic glass, or may be formed of different inorganic glasses. Examples of usable inorganic glass include soda lime glass, aluminosilicate glass, borosilicate glass, alkali-free glass, and quartz glass.

[0015] An example of inorganic glass includes, expressed in mol% in terms of oxides, glass containing 50 to 80% of SiO2, 0 to 10% of B2O3, 0.1 to 25% of Al2O3, 3 to 30% of Li2O+Na2O+K2O, 0 to 25% of MgO, 0 to 25% of CaO, 0 to 5% of SrO, 0 to 5% of BaO, 0 to 5% of ZrO2, and 0 to 5% of SnO2, but is not particularly limited thereto.

[0016] As a method for producing an inorganic glass plate, for example, a float process, a fusion process, a roll-out process, or a down-draw process is used. As a bending forming method for an inorganic glass plate, gravity forming, press forming, or roller forming is used. The inorganic glass plate is bent-formed at approximately 550°C to 770°C. Further, the inorganic glass plate may be subjected to physical strengthening (for example, air cooling strengthening) or chemical strengthening.

[0017] Note that the first glass plate 10 and the second glass plate 20 may be formed of organic glass, that is, resin. As the resin, polycarbonate resin, acrylic resin, polystyrene resin, aromatic polyester resin, polyester resin, polyarylate resin, a polycondensate of halogenated bisphenol A and ethylene glycol, acrylic urethane resin, or halogenated aryl group-containing acrylic resin is used. Among these, polycarbonate resin is preferred from the viewpoints of light weight and flexibility. Note that two or more types of resins may be used in combination.

[0018] The first glass plate 10 is usually colorless, but it can be transparent and may be colored. If it is colored, it may be a so-called privacy glass, especially one that is a dark color such as gray. On the other hand, the second glass plate 20 is preferably colorless and transparent. This is because, as will be described later, the light emitted from the LED 41 hardly attenuates from the time it enters the interior of the second glass plate 20 until it is taken out from the second glass plate 20 into the interior of the vehicle.

[0019] The average values ​​of the thickness t1 of the first glass plate 10 and the average values ​​of the thickness t2 of the second glass plate 20 are not particularly limited, but are preferably 0.5 mm to 3.0 mm. t1 and t2 may vary depending on the location within a single laminated glass 1.

[0020] The average value of t1 on the outside of the vehicle and the average value of t2 on the inside of the vehicle may be the same or different. In the latter case, it is preferable that the average value of t2 on the inside of the vehicle be between 0.3 mm and 2.3 mm. If the average value of t2 is 0.3 mm or more, the handling performance is good. Also, if the average value of t2 is 2.3 mm or less, the lightweight nature of the laminated glass 1 is good.

[0021] Furthermore, if the average value of t2 on the interior side is 0.3 mm to 2.3 mm, the glass quality is good, and for example, residual stress after bending is small. An average value of t2 of 0.3 mm to 2.3 mm is particularly effective when the radius of curvature of laminated glass 1 is small. The average value of t2 on the interior side is more preferably 0.5 mm to 2.1 mm, and even more preferably 0.7 mm to 1.9 mm.

[0022] The average thickness of the outer surface of the vehicle is preferably 1.8 mm to 3.0 mm. If the average thickness of the outer surface of the vehicle is 1.8 mm or more, the strength, such as resistance to flying stones, is sufficient. If the average thickness of the outer surface of the vehicle is 3.0 mm or less, the lightweight nature of the laminated glass 1 is good. The average thickness of the outer surface of the vehicle is more preferably 1.8 mm to 2.8 mm, and even more preferably 1.8 mm to 2.6 mm.

[0023] The first glass plate 10 has a first main surface 11 and a second main surface 12 facing the opposite direction from the first main surface 11. The second glass plate 20 has a third main surface 21 and a fourth main surface 22 facing the opposite direction from the third main surface 21. The first main surface 11, the second main surface 12, the third main surface 21, and the fourth main surface 22 are arranged in this order from the outside of the vehicle toward the inside of the vehicle.

[0024] At least one of the first main surface 11, second main surface 12, third main surface 21, and fourth main surface 22 may be provided with a functional film (not shown). The functional film may provide properties such as water repellency, hydrophilicity, or light shielding (e.g., light shielding from visible light, ultraviolet light, or infrared light). Multiple functional films having different functions may be provided. The multiple functional films may be provided in a laminated manner or spaced apart.

[0025] The interlayer 30 adheres the first glass plate 10 and the second glass plate 20. When the first glass plate 10 or the second glass plate 20 breaks, the interlayer 30 suppresses the scattering of glass fragments. The interlayer 30 can be made of any common material and is not particularly limited, but for example, it can be made of polyvinyl butyral (PVB) or ethylene vinyl acetal (EVA).

[0026] The interlayer 30 is usually colorless, but may be transparent or colored. The interlayer 30 may have a colored layer containing a coloring agent. The colored layer is, for example, called a shade band. The coloring agent is not particularly limited, but examples include organic coloring pigments such as azo, phthalocyanine, quinacridone, perylene, perinone, dioxazine, anthraquinone, and isoindolino, and inorganic coloring pigments such as oxides, hydroxides, sulfides, chromic acid, sulfates, carbonates, silicates, phosphates, arsenates, ferrocyanides, carbon black, and metal powders. These coloring pigments may be used alone or in combination of two or more. The visible light transmittance of the colored layer is, for example, 1% to 50%, preferably 2% to 30%. The visible light transmittance is measured in accordance with JIS R3212:2015.

[0027] Of the first interlayer 31 and the second interlayer 32 that constitute the interlayer 30, the second interlayer 32 located on the vehicle interior side relative to the LED film 40 contains a colorant. The color tone of the second interlayer 32 is L of transmitted light when the light from the CIE standard illuminant D65, measured based on JIS Z 8781-4:2013, transmits through the second interlayer 32 with the CIE standard illuminant D65 used as the light source * a* * b* * color space represented by a* * and b* * . a* * and b* * preferably satisfy -10 < a* * < 10 and -10 < b* * < 10, and more preferably -5 < a* * < 5 and -5 < b* * < 5. When a* * and b* * are within the above ranges, the light emitted from the LED 41 can have a color tone within a certain range, and the effect of the present invention is more excellent.

[0028] The interlayer 30 may contain a colorant, an infrared absorber, an ultraviolet absorber, a luminescent agent, or the like. Of the first interlayer 31 and the second interlayer 32 that constitute the interlayer 30, the first interlayer 31 located on the vehicle exterior side relative to the LED film 40 preferably contains an ultraviolet absorber. The ultraviolet absorber suppresses degradation of the LED film 40 (more specifically, the LED 41) caused by ultraviolet rays.

[0029] The interlayer 30 has the first interlayer 31 and the second interlayer 32 in this order from the vehicle exterior side toward the vehicle interior side.

[0030] The laminated glass 1 is provided with the LED film 40 at the interface between the first interlayer 31 and the second interlayer 32. The LED film 40 is composed of an LED 41 and a film 42 that supports the LED 41.

[0031] LED41 may include a single semiconductor chip that emits a single color, but it may also be capable of changing colors under control by a control circuit, and may include multiple semiconductor chips that emit different colors. For example, LED41 may include a semiconductor chip that emits red light, a semiconductor chip that emits green light, and a semiconductor chip that emits blue light. By switching the lighting color under control by a control circuit, the design of the car interior can be changed. LEDs include OLEDs (Organic Light Emitting Diodes).

[0032] The half-power angle θ1 / 2 (see Figure 5) of LED41 is preferably 40° or greater. The half-power angle is the angle at which the illuminance (lx) is 50% when the illuminance on the optical axis is set to 100%. The illuminance is highest on the optical axis. If the half-power angle θ1 / 2 is 40° or greater, a large space can be illuminated even with a small number of LED41s. The half-power angle θ1 / 2 may be 80° or less.

[0033] The film 42 can be any common material for supporting the LED 41, and should at least be insulating. The material of the film 42 is not particularly limited, but for example, it is PET (polyethylene terephthalate). An electrical circuit (not shown) is formed on the film 42, and the electrical circuit supplies power to the LED 41.

[0034] The laminated glass 1 preferably has multiple LEDs 41. The multiple LEDs 41 may be supported by multiple different films 42, or by the same single film 42. The multiple LEDs 41 are preferably arranged in a desired pattern to display letters or figures to the occupants of the vehicle.

[0035] Preferably, each of the multiple LEDs 41 can be individually switched on and off under the control of a control circuit (not shown). The lighting pattern can be changed by changing the lighting position. As mentioned above, the lighting pattern can also be changed by changing the lighting color.

[0036] The shortest distance between two adjacent LEDs 41 is preferably 10 mm or more, and more preferably 15 mm or more, in order to limit the accumulation of heat in the LEDs 41. When displaying characters or figures with the arrangement pattern of the LEDs 41, the shortest distance between two adjacent LEDs 41 is preferably 50 mm or less, and more preferably 40 mm or less, from the viewpoint of the visibility of the characters or figures.

[0037] The laminated glass 1 includes a scattering layer 50 that scatters light emitted from the LEDs 41, at least at a position that coincides with the optical axis of the LEDs 41. If there are multiple LEDs 41, it is preferable that the scattering layer 50 be provided at a position that coincides with the optical axis of each LED 41, and that multiple scattering layers be provided at intervals. During the daytime, passengers in the vehicle can see the scenery outside the vehicle through the gaps between adjacent scattering layers 50. The scattering layer 50 may also be provided over the entire laminated glass 1 as viewed from the inside of the vehicle.

[0038] The scattering layer 50 blurs the presence of the LED 41 when it is turned off, and reduces the glare of the LED 41 when it is lit. Furthermore, when multiple LEDs 41 are arranged in a desired pattern, the scattering layer 50 can suppress the appearance of a doubled LED arrangement pattern. In the absence of the scattering layer 50, the image that is reflected from the first main surface 11 and transmitted through the fourth main surface 22 may appear doubled, as may the image that is transmitted through the fourth main surface 22 without being reflected from the first main surface 11.

[0039] The scattering layer 50 is located on the interior side of the vehicle than the second interlayer 32, and the second interlayer 32 is a colored interlayer containing a coloring agent. The second interlayer 32 can blur the presence of the LED 41 when it is turned off, and reduce the glare of the LED 41 when it is lit. Furthermore, when multiple LEDs 41 are arranged in a desired pattern, the second interlayer 32 can suppress the appearance of a doubled arrangement pattern of the LEDs 41.

[0040] While the second interlayer 32 is a colored interlayer containing a coloring agent, the first interlayer 31 may be a colored interlayer containing a coloring agent, or it may be a colorless, transparent interlayer without a coloring agent. If the first interlayer 31 is a colored interlayer, the presence of the LEDs can be obscured from the view of people outside the vehicle. On the other hand, if the first interlayer 31 is a transparent interlayer, during the daytime, occupants of the vehicle can easily see the scenery outside the vehicle through the gaps between adjacent scattering layers 50.

[0041] As shown in Figure 5, if the shortest distance from the optical axis of the LED 41 to the periphery of the scattering layer 50 in a direction perpendicular to the optical axis is a, and the distance from the LED 41 to the scattering layer 50 in a direction along the optical axis is h, then it is preferable that the following equation (1) holds true.

[0042]

number

[0043] If equation (1) above is true, then when the half-width angle θ1 / 2 of LED 41 is 60° or less, the scattering layer 50 is provided over the entire region where the illuminance is 50% or more. Therefore, the scattering layer 50 can reduce the glare of LED 41 when LED 41 is lit.

[0044] In addition to the above equation (1), it is preferable that the following equation (2) also holds true.

[0045]

number

[0046] If equation (2) above holds true, the gap between adjacent scattering layers 50 is wide. Therefore, during the daytime, it is easy for passengers in a vehicle to see the scenery outside the vehicle through the gap between adjacent scattering layers 50.

[0047] If the half-width angle θ1 / 2 of the LED 41 is the same, as is clear from equation (1) or (2) above, the smaller h is, the smaller a can be. The scattering layer 50 is preferably placed as close to the LED 41 as possible, as long as it is located on the interior side of the second interlayer 32.

[0048] As shown in Figure 6, it is preferable that the visible light transmittance Tv2 from the scattering layer 50 to the fourth main surface 22 of the second glass plate 20 is higher than the visible light transmittance Tv1 from the first main surface 11 of the first glass plate 10 to the scattering layer 50. Tv1 and Tv2 are measured in accordance with ISO-9050:2003, using a D65 light source and a spectrophotometer. If Tv2 is higher than Tv1, the attenuation of light after passing through the scattering layer 50 can be suppressed, and the light from the LED 41 can be efficiently extracted into the vehicle. It is preferable that Tv1 be lower than Tv2 in order to blur the presence of the LED 41 when it is off and to reduce the glare of the LED 41 when it is on.

[0049] The degree of scattering by the scattering layer 50 is expressed as haze. Haze is the percentage of the diffuse light transmittance Td relative to the total light transmittance Tt (Td / Tt × 100). Tt is the transmittance of light including both the parallel and diffuse components. Td is the transmittance of the diffuse component excluding the parallel component. The diffuse component is the component that has deviated by 2.5° or more from the incident light due to forward scattering. Haze is measured in accordance with JIS K7136:2000.

[0050] As shown in Figure 7, it is preferable that the haze variation range ΔH (ΔH = |H1 - H2|) of the laminated glass 1 between one side and the inner side of the periphery of the scattering layer 50, as viewed from inside the vehicle, is 0% to 10%. H1 is the haze measured at a position P1 5 mm inward from the periphery of the scattering layer 50, avoiding the LED 41. ΔH2 is the haze measured at a position P2 5 mm outward from the periphery of the scattering layer 50. The variation range ΔH is the variation range with respect to the periphery of the scattering layer 50 as viewed from inside the vehicle. If the variation range ΔH is 10% or less, the outline of the scattering layer 50 as seen by the vehicle occupants can be blurred.

[0051] The scattering layer 50 preferably comprises a substrate and particles dispersed in the substrate that scatter light. The material of the particles is not particularly limited, but can be selected from the group consisting of, for example, TiO2, ZnO, Al2O3, ZrO2, PbSO4, BaSO4, CaCO3, glass, polymers, and mixtures thereof. The particle content of the scattering layer 50 is preferably 0.1% by mass to 10% by weight.

[0052] The average particle diameter of the particles in the scattering layer 50 is preferably 0.01 μm to 1.0 μm. Here, the average particle size is the particle diameter at which the cumulative amount of the particles, starting from the smallest particle, accounts for 50% of the volume on a volume basis, as measured by the laser diffraction-scattering method in accordance with ISO 13320:2009 (50% volume cumulative diameter).

[0053] The scattering layer 50 should be provided on the interior side of the second interlayer 32. If the scattering layer 50 has a substrate and particles dispersed in the substrate that scatter light, it is preferable that the scattering layer 50 be provided at the interface between the second interlayer 32 and the second glass plate 20 as shown in Figure 1, or on the fourth main surface 22 of the second glass plate 20 as shown in Figure 2. If the scattering layer 50 is provided at the interface between the second interlayer 32 and the second glass plate 20 as shown in Figure 1, the second interlayer 32 fills the gap between adjacent scattering layers 50.

[0054] As shown in Figure 3, the interlayer 30 has a first interlayer 31, a second interlayer 32, and a third interlayer 33 in that order from the outside to the inside of the vehicle, and a scattering layer 50 may be provided at the interface between the second interlayer 32 and the third interlayer 33. When a scattering layer 50 is provided at the interface between the second interlayer 32 and the third interlayer 33, the scattering layer 50 may have a substrate and particles dispersed in the substrate that scatter light, or it may have a light-adjusting film.

[0055] Dimmable films switch between different levels of haze. For example, a dimmable film can switch between a transparent state with 0% to 10% haze and a cloudy state with 30% to 60% haze. Dimmable films include, for example, electrochromic films. Electrochromic films switch their haze according to the applied voltage. In addition to electrochromic films, gaschromic films and photochromic films can also be used as dimmable films.

[0056] The electrochromic film has a dimming element. The dimming element includes, for example, a suspended particle device (SPD), a twisted nematic liquid crystal (TNLC), a polymer dispersed liquid crystal (PDLC), a polymer network liquid crystal (PNLC), or a guest-host liquid crystal (GHLC).

[0057] As shown in Figure 4, the scattering layer 50 may be an uneven layer formed on the third main surface 21 of the second glass plate 20. The uneven layer is formed by etching, blasting, or hot press molding. The uneven layer may also be formed on the fourth main surface 22 of the second glass plate 20.

[0058] Next, the manufacturing method of the laminated glass 1 shown in Figure 1 will be described. The manufacturing methods of the laminated glass 1 shown in Figures 2 to 4 are the same as those of the laminated glass 1 shown in Figure 1, except for the position of the scattering layer 50, so the explanation will be omitted.

[0059] The manufacturing method for the laminated glass 1 shown in Figure 1 includes, for example, the following steps (A) to (C): (A) The first glass plate 10, the first interlayer 31, the LED-equipped film 40, the second interlayer 32, the scattering layer 50, and the second glass plate 20 are stacked in this order to produce a laminate. The scattering layer 50 is formed in advance on the second interlayer 32 or the second glass plate 20.

[0060] (B) The laminate is placed inside a rubber bag, and the rubber bag is heated while the pressure inside the bag is reduced, bonding the first glass plate 10 and the second glass plate 20 with the interlayer film 30. The pressure inside the rubber bag is, for example, -100kPa to -65kPa, relative to atmospheric pressure. The heating temperature of the rubber bag is, for example, 70°C to 110°C.

[0061] (C) The laminate removed from the rubber bag is heated at 100°C to 150°C and pressed together under pressure of 0.6 MPa to 1.3 MPa. An autoclave, for example, is used for pressing. If the scattering layer 50 is formed on the fourth main surface 22 of the second glass plate 20, the scattering layer 50 may be formed on the fourth main surface 22 of the second glass plate 20 after step (C) above.

[0062] The following additional information is disclosed regarding the above embodiments, etc. [Note 1] A laminated glass panel, comprising a first glass panel, an interlayer, and a second glass panel arranged in that order from the outside to the inside of the vehicle, is installed on the ceiling of the vehicle. The aforementioned interlayer has a first interlayer and a second interlayer in this order, from the outside of the vehicle towards the inside of the vehicle. The laminated glass includes an LED-equipped film at the interface between the first interlayer and the second interlayer, which is composed of a film and an LED supported by the film. The laminated glass includes a scattering layer that scatters light emitted from the LED at a position that coincides with the optical axis of the LED, Laminated glass, wherein the scattering layer is provided on the interior side of the vehicle than the second interlayer, and the second interlayer is a colored interlayer containing a coloring agent. [Note 2] The laminated glass described in Appendix 1 satisfies formula (1) described in the specification, where a is the shortest distance from the optical axis to the periphery of the scattering layer in a direction perpendicular to the optical axis, and h is the distance from the LED to the scattering layer in a direction along the optical axis. [Note 3] The first glass plate has a first main surface and a second main surface facing the opposite direction to the first main surface, and the second glass plate has a third main surface and a fourth main surface facing the opposite direction to the third main surface, and the first main surface, second main surface, third main surface, and fourth main surface are arranged in this order from the outside of the vehicle to the inside of the vehicle. The laminated glass according to Appendix 1 or 2, wherein the visible light transmittance Tv2 from the scattering layer to the fourth main surface of the second glass plate is higher than the visible light transmittance Tv1 from the first main surface of the first glass plate to the scattering layer. [Note 4] Laminated glass according to any one of the appendices 1 to 3, wherein, when viewed from inside the vehicle, the haze variation range of the laminated glass between one side and the opposite side of the periphery of the scattering layer is 0% to 10%. [Note 5] The laminated glass has a plurality of LEDs, The scattering layer is provided in a plurality of positions that overlap with the optical axis of each LED, and is spaced apart, as described in any one of the appendices 1 to 4. [Note 6] The laminated glass described in Appendix 5, wherein the shortest distance between two adjacent LEDs is 10 mm or more. [Note 7] The scattering layer comprises a substrate and particles dispersed in the substrate that scatter light, as described in any one of the appendices 1 to 6. [Note 8] The scattering layer is provided at the interface between the second interlayer and the second glass plate, and is a laminated glass as described in Appendix 7. [Note 9] The first glass plate has a first main surface and a second main surface facing the opposite direction to the first main surface, and the second glass plate has a third main surface and a fourth main surface facing the opposite direction to the third main surface, and the first main surface, second main surface, third main surface, and fourth main surface are arranged in this order from the outside of the vehicle to the inside of the vehicle. The scattering layer is provided on the fourth main surface of the second glass plate, and is a laminated glass as described in Appendix 7. [Note 10] The first glass plate has a first main surface and a second main surface facing the opposite direction to the first main surface, and the second glass plate has a third main surface and a fourth main surface facing the opposite direction to the third main surface, and the first main surface, second main surface, third main surface, and fourth main surface are arranged in this order from the outside of the vehicle to the inside of the vehicle. The laminated glass according to any one of the appendices 1 to 6, wherein the scattering layer is an uneven layer formed on the third main surface or the fourth main surface. [Note 11] The aforementioned scattering layer is a dimmable film that switches the haze, as described in any one of the appendices 1 to 6, and is a laminated glass. [Note 12] The aforementioned interlayer has the first interlayer, the second interlayer, and the third interlayer in this order, from the outside of the vehicle to the inside of the vehicle. The laminated glass according to Appendix 11, wherein the light-adjusting film is provided at the interface between the second interlayer and the third interlayer. [Note 13] The laminated glass according to any one of the appendices 1 to 12, wherein the first interlayer is a colored interlayer containing a coloring agent. [Note 14] The first interlayer is a colorless, transparent interlayer, as described in any one of the appendices 1 to 12, of the laminated glass.

[0063] The laminated glass described above is not limited to the embodiments described herein. Various changes, modifications, substitutions, additions, deletions, and combinations are possible within the scope of the claims. These also naturally fall within the technical scope of this disclosure. [Explanation of symbols]

[0064] 1. Laminated glass 10. First glass plate 20. Second glass plate 30 Interlayer 31. First Interlayer 32. Second Interlayer 40 LED-equipped film 41 LED 42 film 50 Scattered Layers

Claims

1. A laminated glass panel, comprising a first glass panel, an interlayer, and a second glass panel arranged in that order from the outside to the inside of the vehicle, is installed on the ceiling of the vehicle. The aforementioned interlayer has a first interlayer and a second interlayer in this order, from the outside of the vehicle towards the inside of the vehicle. The laminated glass includes an LED-equipped film at the interface between the first interlayer and the second interlayer, which is composed of a film and an LED supported by the film. The laminated glass includes a scattering layer that scatters light emitted from the LED at a position that coincides with the optical axis of the LED, Laminated glass, wherein the scattering layer is provided on the interior side of the vehicle than the second interlayer, and the second interlayer is a colored interlayer containing a coloring agent.

2. The laminated glass according to claim 1, wherein the shortest distance from the optical axis to the periphery of the scattering layer in a direction perpendicular to the optical axis is a, and the distance from the LED to the scattering layer in a direction along the optical axis is h, satisfies the following formula (1). [Math 1]

3. The first glass plate has a first main surface and a second main surface facing the opposite direction to the first main surface, and the second glass plate has a third main surface and a fourth main surface facing the opposite direction to the third main surface, and the first main surface, second main surface, third main surface, and fourth main surface are arranged in this order from the outside of the vehicle to the inside of the vehicle. The laminated glass according to claim 1, wherein the visible light transmittance Tv2 from the scattering layer to the fourth main surface of the second glass plate is higher than the visible light transmittance Tv1 from the first main surface of the first glass plate to the scattering layer.

4. The laminated glass according to claim 1, wherein, when viewed from inside the vehicle, the haze variation range of the laminated glass is 0% to 10% between one side and the opposite side of the periphery of the scattering layer.

5. The aforementioned laminated glass has a plurality of the aforementioned LEDs, The laminated glass according to claim 1, wherein the scattering layer is provided in a plurality of positions that overlap with the optical axis of each LED and are spaced apart.

6. The laminated glass according to claim 5, wherein the shortest distance between two adjacent LEDs is 10 mm or more.

7. The laminated glass according to claim 1, wherein the scattering layer comprises a substrate and particles dispersed in the substrate that scatter light.

8. The laminated glass according to claim 7, wherein the scattering layer is provided at the interface between the second interlayer and the second glass plate.

9. The first glass plate has a first main surface and a second main surface facing the opposite direction to the first main surface, and the second glass plate has a third main surface and a fourth main surface facing the opposite direction to the third main surface, and the first main surface, second main surface, third main surface, and fourth main surface are arranged in this order from the outside of the vehicle to the inside of the vehicle. The laminated glass according to claim 7, wherein the scattering layer is provided on the fourth main surface of the second glass plate.

10. The first glass plate has a first main surface and a second main surface facing the opposite direction to the first main surface, and the second glass plate has a third main surface and a fourth main surface facing the opposite direction to the third main surface, and the first main surface, second main surface, third main surface, and fourth main surface are arranged in this order from the outside of the vehicle to the inside of the vehicle. The laminated glass according to claim 1, wherein the scattering layer is an uneven layer formed on the third main surface or the fourth main surface.

11. The laminated glass according to claim 1, wherein the scattering layer has a dimming film that switches the haze.

12. The aforementioned interlayer has the first interlayer, the second interlayer, and the third interlayer in this order, from the outside of the vehicle to the inside of the vehicle. The laminated glass according to claim 11, wherein the light-adjusting film is provided at the interface between the second interlayer and the third interlayer.

13. The laminated glass according to claim 1, wherein the first interlayer is a colored interlayer containing a coloring agent.

14. The laminated glass according to claim 1, wherein the first interlayer is a colorless, transparent interlayer.

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