Patent Application
20240383318
The present disclosure relates to the technical field of glass, in particular to a glass assembly with integrated illumination effect and light pollution reduction function, a vehicle window glass using the glass assembly and a vehicle with the vehicle window glass.
With the rapid development of automobile industry and the increasing demand of consumers for vehicle functions, glass with illumination effect has been widely valued by vehicle manufacturers and favored by the consumers. Generally, the glass with illumination effect adopts the method of applying illumination enamel or ink on one side of glass plate based on pattern design, and transmitting incident light emitted by light source arranged on the side of the glass plate or integrated in the glass plate through the pattern area by scattering or diffusing, so as to realize illumination with different effects.
However, for the illuminable vehicle window glass, when the light source used to stimulate the illumination effect of the glass is turned off, in a dark environment (for example, at night), due to the considerable reflectivity of the glass, the light emitted by other light sources inside the vehicle (for example, the instrument panel or the central control screen) will project a significant image on the glass, resulting in light pollution causing discomfort to the eyes of passengers in the vehicle and even causing safety accidents.
The object of the present disclosure is to provide a glass assembly with integrated illumination effect and light pollution reduction function. By combining anti-reflection design on the surface of the glass, the reflectivity of the surface of the glass can be reduced, the product performance can be improved and the user experience can be enhanced without affecting the illumination effect.
To this end, according to one aspect of the present disclosure, a glass assembly is provided. The glass assembly comprising a glass body having a first surface and a second surface which are oppositely arranged, wherein at least a portion of incident light entering the glass body is totally reflected between the first surface and the second surface; a light guiding layer arranged on the first surface or the second surface for guiding the incident light out of the second surface; an anti-reflection layer attached to the second surface to reduce the reflection of the light incident on the second surface from outside of the glass body.
By providing the anti-reflection layer, the glass assembly of the present disclosure integrates the illumination function and the light pollution reduction function into a whole, thus enhancing the user's comfort. In addition, the application of the anti-reflection layer is easy to implement, so that the glass assembly of the present disclosure has the beneficial effects of simple process, obvious performance improvement and the like.
According to the above technical concept, the embodiments of the present disclosure may further include any one or more of the following alternative forms.
In some alternative forms, the second surface comprises at least a total reflection area and a light guiding area, and the anti-reflection layer covers at least the total reflection area on the second surface.
In some alternative forms, the light guiding layer is a scattering layer arranged on the second surface and forms the light guiding area on the second surface, and the anti-reflection layer is attached to the second surface and covers the light guiding area and the total reflection area.
In some alternative forms, the light guiding layer is a scattering layer arranged on the second surface and forms the light guiding area on the second surface, and the anti-reflection layer is attached to the second surface and only covers the total reflection area on the second surface.
In some alternative forms, the light guiding layer is a scattering layer arranged on the second surface and forms the light guiding area on the second surface, and the anti-reflection layer is attached to and covers the second surface, wherein the light guiding layer is laminated on the anti-reflection layer.
In some alternative forms, the light guiding layer is a scattering layer arranged on the second surface, and the anti-reflection layer is attached to and covers the second surface, wherein the anti-reflection layer comprises a first anti-reflection film and a second anti-reflection film which are laminated, and the light guiding layer is sandwiched between the first anti-reflection film and the second anti-reflection film.
In some alternative forms, the first anti-reflection film is close to the second surface, and the refractive index of the first anti-reflection film is greater than the refractive index of the glass body and the refractive index of the second anti-reflection film.
In some alternative forms, the first anti-reflection film and/or the second anti-reflection film is a single-layer film or formed by laminating multiple layers of films.
In some alternative forms, the light guiding layer is a diffusion layer arranged on the first surface, and the anti-reflection layer is attached to and covers the second surface. In some alternative forms, the anti-reflection layer is a single-layer film or formed by laminating multiple layers of films.
In some alternative forms, the light guiding layer is an enamel printing layer or an ink printing layer provided on the first surface or the second surface and having a pattern.
In some alternative forms, the light guiding layer is discontinuously arranged on the first surface or the second surface.
In some alternative forms, the glass assembly comprises a first light source which emits the incident light at least partially totally reflected between the first surface and the second surface to realize illumination, and the light incident on the second surface from the outside of the glass body is emitted by a second light source.
In some alternative forms, the anti-reflection layer is attached to the second surface by wet coating, physical vapor deposition or chemical vapor deposition.
In some alternative forms, the glass body is monolithic glass or laminated glass.
In some alternative forms, the glass body is ultra-transparent float glass or non-ultra-transparent float glass.
In some alternative forms, the glass body is an ultra-transparent float glass with a transparent conductive oxide coating, and the anti-reflection layer is attached to the transparent conductive oxide coating.
According to another aspect of the present disclosure, a vehicle window glass made of the above glass assembly is provided. The first surface of the glass body faces the outside of the vehicle and the second surface of the glass body faces the inside of the vehicle.
In some alternative forms, the vehicle window glass is front windshield, rear windshield, skylight glass, door glass or corner window glass.
According to another aspect of the present disclosure, there is provided a vehicle comprising the above-mentioned vehicle window glass.
According to the glass assembly integrated with the anti-reflection layer of the present disclosure, the light pollution reflected by the surface of the glass assembly can be particularly reduced on the premise of not affecting the performance and aesthetics of the glass, and the user experience can be improved. By the combination of various laminated structures, the glass assembly of the present disclosure can be applied to various occasions to meet the diversified requirements of users.
Other features and advantages of the present disclosure will be better understood by the following alternative embodiments described in detail in conjunction with the accompanying drawings, in the drawings:
The implementation and use of the embodiments are discussed in detail below. However, it should be understood that the specific embodiments discussed merely exemplify the specific ways of implementing and using the present disclosure, and do not limit the scope of the disclosure. When describing the structural positions of various components, such as the directions of upper, lower, top, bottom, etc., the description is not absolute, but relative. When the various components are arranged as shown in the figures, these directional expressions are appropriate, but when the positions of the various components in the figures would be changed, these directional expressions would also be changed accordingly.
In this context, the expression “including” or similar expressions “including”, “containing” and “having” which are synonymous are open, and do not exclude additional unlisted elements, steps or ingredients. The expression “consisting of . . . ” excludes any element, step or ingredient that is not specified. The expression “consisting essentially of . . . ” means that the scope is limited to the specified elements, steps or ingredients, plus the optional elements, steps or ingredients that do not materially affect the basic and new features of the claimed subject matter. It should be understood that the expression “comprising” covers the expressions “consisting essentially of” and “consisting of”.
In this context, the terms “first”, “second” and so on are not used to limit the sequence and the number of components unless otherwise stated.
In this context, the meanings of “a plurality of” and “multiple layers” refer to two or more than two, unless otherwise specified.
In this context, unless otherwise specified, the terms such as “installation”, “connection” and “attach” should be understood broadly. For example, it can be fixed connection, detachable connection or integrated; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction between two elements. For those skilled in the art, the specific meanings of the above terms in this context can be understood according to specific situations.
In this context, “glass” is an amorphous inorganic nonmetallic material, which is generally made of a variety of inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) as main raw materials, and a small amount of auxiliary raw materials. Its main components are silica and other oxides. In the described embodiments, the thickness of the glass is the thickness commonly used in the art, and the thickness of each laminated structure on the glass is suitable for the conventional range, and is not limited as shown in the figures and described in the following detailed description. In addition, although it is shown as plane glass in the figures, the glass of the present disclosure may also be curved glass. In various embodiments, it is described as an independent glass body or glass plate. However, in some cases, the surface of the glass body can also use a special coating to improve thermal insulation and/or comfort, and the glass body can also be laminated glass to obtain diversified functions or effects.
Hereinafter, the glass assembly applied to the vehicle window glass will be described, but it is not excluded that the glass assembly can be applied to door, window, curtain wall, airplane glass or ship glass. When the glass assembly is used to describe the window glass of a vehicle, “outside” and “inside” refer to the directions relative to vehicle body, “outside” refers to the direction away from the vehicle body and “inside” refers to the direction facing the vehicle body. It should be understood that the vehicle window glass according to the embodiment of the present disclosure includes, but is not limited to, front windshield, rear windshield, skylight glass, door glass or corner window glass, which can provide different illumination effects based on different requirements.
In the ever-changing automobile industry, a glass assembly with illumination and decorative effects has been widely used in medium-to-high-grade vehicles, such as vehicle skylights, which can not only achieve the effects of light intensity and/or color change, but also combine with coatings and/or sandwiched structures to form illumination effects with different patterns.
In a first illumination mode shown in
The scattering layer 12 can also be an enamel printing layer or an ink printing layer based on pattern design, and can be arranged discontinuously on the second surface to produce different display patterns or display effects. When applied to a vehicle skylight, the first surface 14 faces the outside of the vehicle and the second surface 15 faces the inside of the vehicle, so that passengers in the vehicle can experience diversified illumination effects from the vehicle skylight.
In a second illumination mode shown in
Those skilled in the art can understand that both the scattering layer and the diffusion layer can make the light escape from the glass body by changing the refractive index of the interface.
A third illumination mode shown in
A fourth illumination mode shown in
Among the above-mentioned various illumination modes, the illumination light source integrated inside the glass body and the illumination light source arranged outside the glass body are all represented by a first light source. When the illumination function of the above glass assembly is used normally, passengers in the vehicle may not feel uncomfortable. However, when the first light source used to stimulate the illumination effect is turned off, in a dark environment, since the glass has a considerable reflectivity, for example, about 4.2% at an air-glass interface, about 8.3% for the whole glass. At this time, as shown in
According to the present disclosure, an anti-reflection layer is integrated on the glass assembly, so that the glass assembly has the illumination effect while reducing the light pollution, wherein the anti-reflection layer is attached to the surface through which the incident light emitted by the first light source is transmitted, so as to reduce the reflection of the light incident on the surface. The anti-reflective (AR) layer is a widely used optical coating, also known as anti-reflection film. Alternatively, the anti-reflection layer can be attached to the surface of the glass body by wet coating, physical vapor deposition or chemical vapor deposition.
First, referring to a first embodiment of
Compared with the existing design, when the glass assembly 100 is illuminated by a first light source 140 integrated inside the glass body 110, as shown in
Based on the above concept, the present disclosure can also have the following variations.
For the embodiment shown in
From the above description, it can be seen that the glass assembly of the present disclosure integrates the anti-reflection layer in different ways, which can effectively reduce the unexpected light pollution while ensuring the illumination effect, and has the beneficial effects of simple process, obvious performance improvement and the like. The anti-reflection layer can be obtained from commercial products, and its thickness and material are not limited. In the described or non-described possible embodiments, the glass body can be selected as monolithic glass or laminated glass. For example, when it is applied to the front windshield or the skylight glass in the vehicle window glass, the laminated glass can be selected, which includes at least two layers of glass bodies and an intermediate layer (for example, PVB (Polyvinyl Butyral), or EVA (ethylene vinyl acetate)) that bonds them together. The anti-reflection layer can be attached to the inner surface of the laminated glass facing the interior of the vehicle, which can provide self-cleaning, hydrophobic and oleophobic functions in addition to reducing reflection. It should be understood that the laminated glass has been widely used in the field of vehicles, and a variety of functional layers are usually provided in the laminated glass to obtain different functions, such as dimming layer (such as PDLC, polymer dispersed liquid crystal; or EC, electrochromism), light-emitting layer, imaging layer, touch layer, etc. The application of the anti-reflection layer on the laminated glass in the present disclosure does not affect the function of these functional layers.
For the front and rear door glass or the rear windshield in the vehicle window glass, a single piece of tempered glass can be used. In this case, the anti-reflection layer is also attached to the inner surface of the single piece of glass facing the interior of the vehicle. Alternatively, the glass body is ultra-transparent float glass or non-ultra-transparent float glass. When the non-ultra-transparent float glass is selected, it is suitable for illumination by the first light source outside the glass body through the scattering layer. Alternatively, the glass body is ultra-transparent float glass with a transparent conductive oxide (TCO) coating. In this way, the refractive index of the transparent conductive oxide is usually greater than that of the anti-reflection layer, and the anti-reflection layer is advantageously attached to the transparent conductive oxide coating, that is, the anti-reflection layer is arranged on the surface of the glass assembly closest to the interior of the vehicle to achieve the best anti-reflection effect.
It should be understood here that the embodiments shown in the drawings only illustrate the optional architectures, shapes, sizes and arrangements of various optional components of the glass assembly according to the present disclosure; however, it is only illustrative rather than restrictive, and other shapes, sizes and arrangements can be adopted without departing from the spirit and scope of the present disclosure.
The technical content and technical features of the present disclosure have been disclosed above. However, it can be understood that those skilled in the art can make various changes and improvements to the above disclosed concept under the creative idea of the present disclosure, all of which fall within the protection scope of the present disclosure. The description of the above embodiments is illustrative rather than restrictive, and the protection scope of the present disclosure is determined by the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202111160431.0 | Sep 2021 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2022/121987 | 9/28/2022 | WO |
