CN113625484B - Dimming glass, preparation method thereof and glass device - Google Patents

Abstract

The embodiment of the disclosure provides dimming glass, a preparation method thereof and a glass device. The dimming glass comprises a first glass layer, a second glass layer and a dimming functional layer, wherein the first glass layer and the second glass layer are oppositely arranged, the dimming functional layer is located between the first glass layer and the second glass layer, the dimming glass further comprises a fixing structure which is arranged along the edge of the dimming functional layer, the dimming functional layer is fixed on the first glass layer and the second glass layer through the fixing structure, and a first gas layer is arranged between the dimming functional layer and at least the first glass layer. According to the technical scheme, the dimming functional layer is not required to be laminated between the first glass layer and the second glass layer by adopting the lamination process, so that uneven pressure caused by the lamination process is avoided, the dimming functional layer is not subjected to external force, the original box thickness can be kept by the dimming functional layer, the uniformity of the box thickness is kept, and white spots and black Mura caused by uneven box thickness are avoided.

Description

Dimming glass, preparation method thereof and glass device

Technical Field

The disclosure relates to the technical field of display glass, in particular to dimming glass, a preparation method thereof and a glass device.

Background

Most of the skylights and side windows of passenger cars are hyperbolic curved glass, and along with the rich and colorful modeling of building curtain walls, the curved glass with various shapes is also applied to high-end villas and landmark buildings. The flexible dimming functional layer can be hyperbolic or single-curved, and can better meet the requirements of curved dimming glass.

In the prior art, the dimming glass adopting the flexible dimming functional layer has the problems of white spots, non-uniformity (Mura) and the like.

Disclosure of Invention

Embodiments of the present disclosure provide a light-adjusting glass, a method for manufacturing the same, and a glass device, so as to solve or alleviate one or more technical problems in the prior art.

As a first aspect of embodiments of the present disclosure, embodiments of the present disclosure provide a light-adjusting glass including a first glass layer and a second glass layer disposed opposite to each other, and a light-adjusting functional layer disposed between the first glass layer and the second glass layer, the light-adjusting glass further including a fixing structure disposed along an edge of the light-adjusting functional layer, the light-adjusting functional layer being fixed to the first glass layer and the second glass layer by the fixing structure, and a first gas layer being disposed between the light-adjusting functional layer and at least the first glass layer.

In some possible implementations, the fixation structure includes a first spacer bar disposed between the dimming functional layer and the first glass layer along an edge of the dimming functional layer.

In some possible implementations, a second gas layer is disposed between the dimming functional layer and the second glass layer, and the fixation structure further includes a second spacer disposed between the dimming functional layer and the second glass layer along an edge of the dimming functional layer.

In some possible implementations, the securing structure further includes a sealant located about the first and second spacer bars.

In some possible implementations, the dimming functional layer is provided in a preset shape, and the dimming glass further includes first and second shape-retaining tabs respectively abutted on opposite sides of the dimming functional layer, each of the first and second shape-retaining tabs matching the preset shape of the dimming functional layer, the first and second shape-retaining tabs configured to provide support to the dimming functional layer to retain the preset shape.

In some possible implementations, the first shape retention tab has a thickness in the range of 0.5mm to 1mm and the second shape retention tab has a thickness in the range of 0.5mm to 1mm, the materials of both the first shape retention tab and the second shape retention tab being transparent materials.

In some possible implementations, the dimming functional layer is provided in a preset shape, the dimming glass further includes a support filled in the first gas layer, a shape of a surface of the support facing the dimming functional layer matches the preset shape of the dimming functional layer, and the support is configured to provide support to the dimming functional layer to maintain the dimming functional layer in the preset shape.

In some possible implementations, the support is adhered to a side of the first glass layer facing the dimming function layer, such that the support is filled in the first gas layer.

In some possible implementations, a desiccant is disposed within the first gas layer and/or within the second gas layer.

In some possible implementations, the first glass layer is laminated glass or tempered glass; the second glass layer is laminated glass or toughened glass.

As a second aspect of the embodiments of the present disclosure, embodiments of the present disclosure provide a light-adjusting glass, including a laminated glass, a glue layer, and a light-adjusting functional layer, where the light-adjusting functional layer is adhered to one side of the laminated glass through the glue layer, and one side of the light-adjusting functional layer facing away from the laminated glass is exposed to air.

In some possible implementations, the dimming glass further includes a protective cover plate disposed on a side of the dimming functional layer facing away from the laminated glass.

In some possible implementations, the dimming functional layer includes a first flexible substrate and a second flexible substrate disposed opposite to each other, and a liquid crystal layer disposed between the first flexible substrate and the second flexible substrate, where the dimming glass has a curved shape.

As a third aspect of the embodiments of the present disclosure, embodiments of the present disclosure provide a method for preparing a dimming glass, including:

sequentially laminating the laminated glass, the adhesive film, the dimming functional layer and the auxiliary plate;

laminating the laminated glass, the adhesive film, the dimming functional layer and the auxiliary plate which are sequentially laminated by adopting a lamination process;

and removing the auxiliary plate to release the lamination stress, so as to form the dimming glass, wherein the dimming glass comprises laminated glass, a glue film and a dimming functional layer which are sequentially stacked.

As a fourth aspect of the disclosed embodiments, the disclosed embodiments provide a glass device comprising the dimming glass in the disclosed embodiments.

According to the technical scheme, the dimming functional layer is not required to be laminated between the first glass layer and the second glass layer by adopting the lamination process, so that uneven pressure caused by the lamination process is avoided, the dimming functional layer is not subjected to external force, the original box thickness can be kept by the dimming functional layer, the uniformity of the box thickness is kept, and white spots and black Mura caused by uneven box thickness are avoided.

The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present disclosure will become apparent by reference to the drawings and the following detailed description.

Drawings

In the drawings, the same reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily drawn to scale. It is appreciated that these drawings depict only some embodiments according to the disclosure and are not to be considered limiting of its scope.

FIG. 1a is a schematic diagram of a light-modulating layer;

FIG. 1b is a schematic diagram of a dark state of a light modulating layer;

FIG. 2 is a schematic view of a structure of a light-adjusting glass according to the related art;

FIG. 3 is a schematic view of the shape of the light adjusting functional layer in the light adjusting glass shown in FIG. 2;

FIG. 4 is a schematic view of a structure of a light control glass according to an embodiment of the disclosure;

FIG. 5a is a schematic view of a light control glass according to another embodiment of the present disclosure;

FIG. 5b is a schematic view of a light control glass according to another embodiment of the present disclosure;

FIG. 6a is a schematic view of a light control glass according to another embodiment of the present disclosure;

FIG. 6b is a schematic view of a light control glass according to another embodiment of the present disclosure;

FIG. 6c is a schematic view of a light control glass according to another embodiment of the present disclosure;

FIG. 7 is a schematic view of a structure of a light control glass according to another embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a laminated glass in the process of manufacturing a light-adjusting glass according to an embodiment of the disclosure.

Reference numerals illustrate:

100. a dimming functional layer; 111. a first flexible substrate; 112. a first electrode layer; 113. a first alignment layer; 121. a second flexible substrate; 122. a second electrode layer; 123. a second alignment layer; 130. a liquid crystal layer; 211. a first tempered glass; 212. an adhesive film; 221. a second tempered glass; 31. a first glass layer; 32. a second glass layer; 33. a first gas layer; 34. a second gas layer; 35. a first shape-retaining sheet; 36. a second shape-retaining sheet; 37. a support; 40. a fixed structure; 41. a first spacer bar; 42. a second spacer bar; 43. sealing glue; 51. laminating glass; 52. a glue layer; 53. and an auxiliary plate.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present disclosure. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

Fig. 1a is a schematic view of a light-modulating layer, and fig. 1b is a schematic view of a dark state of a light-modulating layer. As shown in fig. 1a and 1b, the dimming functional layer 100 may be a flexible dimming functional layer. The dimming function layer 100 includes a first flexible substrate 111 and a second flexible substrate 121 disposed opposite to each other, and a liquid crystal layer 130 between the first flexible substrate 111 and the second flexible substrate 121. The dimming functional layer further includes a first electrode layer 112, a second electrode layer 122, a first alignment layer 113 and a second alignment layer 123, as shown in fig. 1a and 1 b. The liquid crystal layer comprises liquid crystal and dichroism dye, the dichroism dye and the liquid crystal are in guest-host effect, the dichroism dye can rotate along with the liquid crystal, and the light absorption brightness of the dichroism dye gradually decreases along with the rotation angle. When the first electrode layer 112 and the second electrode layer 122 are not electrified, the liquid crystal and the dichromatic dye molecules do not rotate, the light absorption brightness of the liquid crystal layer is minimum, and the flexible dimming functional layer is in a bright state, as shown in fig. 1 a; when the first electrode layer 112 and the second electrode layer 122 are energized, the rotation angle of the liquid crystal and the dichroic dye molecules reaches a maximum value of 90 °, the light absorption amount of the liquid crystal layer reaches a maximum, and the flexible dimming functional layer is in a dark state, as shown in fig. 1 b.

It should be noted that the flexible dimming functional layers shown in fig. 1a and 1b use a vertical electric field, that is, the first electrode layer 112 and the second electrode layer 122 are respectively located on opposite sides of the liquid crystal layer 130. In other embodiments, the flexible dimming functional layer may employ a horizontal electric field, i.e., the first electrode layer and the second electrode layer are located on the same side of the liquid crystal layer 130. The electric field for controlling the rotation of the liquid crystal of the flexible dimming functional layer can be set according to the requirement, so long as the rotation of the liquid crystal can be controlled, and the light transmission of the flexible dimming functional layer can be controlled.

Fig. 2 is a schematic structural diagram of a dimming glass in the related art. As shown in fig. 2, the light-adjusting glass includes a first toughened glass 211, a second toughened glass 221 and a flexible light-adjusting functional layer 100, and the flexible light-adjusting functional layer 100 is laminated between the first toughened glass 211 and the second toughened glass 221 by a film 212 by adopting a lamination process, wherein the film 212 can be a PVB film or an EVA film. In the lamination process for preparing the light-adjusting glass shown in fig. 2, the autoclave process pressure is generally 1bar to 12bar.

Fig. 3 is a schematic view of the shape of the dimming functional layer in the dimming glass shown in fig. 2. Because the first flexible substrate 111 and the second flexible substrate 121 of the dimming functional layer have poor support and uneven distribution of the lamination pressure, as shown in fig. 3, the cell thickness of the dimming functional layer is easy to collapse in the area with high pressure, and the liquid crystal at the collapsed position of the cell thickness is less likely to form white spots; the cell thickness increases in the region where the pressure is small, and the liquid crystal increases to form black Mura at the position where the cell thickness increases.

Fig. 4 is a schematic structural diagram of a dimming glass according to an embodiment of the disclosure. As shown in fig. 4, the dimming glass may include a first glass layer 31 and a second glass layer 32 disposed opposite to each other, and a dimming function layer 100 between the first glass layer 31 and the second glass layer 32. The dimming glass further comprises a fixing structure 40, the fixing structure 40 is disposed along an edge of the dimming functional layer 100, and the dimming functional layer 100 is fixed to the first glass layer 31 and the second glass layer 32 through the fixing structure 40. A first gas layer 33 is provided between at least the dimming functional layer 100 and the first glass layer 31.

According to the dimming glass in the embodiment of the disclosure, the dimming functional layer 100 is fixed on the first glass layer 31 and the second glass layer 32 through the fixing structure 40, the first gas layer 33 is arranged between the dimming functional layer 100 and the first glass layer 31, the dimming glass with the structure does not need to adopt a lamination process to laminate the dimming functional layer 100 between the first glass layer 31 and the second glass layer 32, uneven pressure caused by the lamination process is avoided, and the dimming functional layer 100 is not subjected to external force, so that the dimming functional layer 100 can keep original box thickness, keep the box thickness uniform, and avoid white spots and black Mura caused by uneven box thickness. In addition, by providing the first gas layer 33, the heat transfer coefficient of the light control glass can be reduced, and the energy saving performance can be improved.

Note that, the dimming functional layer 100 may be a flexible dimming functional layer. As shown in fig. 1a and 1b, the dimming functional layer 100 may include a first flexible substrate 111 and a second flexible substrate 121 disposed opposite to each other, and a liquid crystal layer 130 between the first flexible substrate 111 and the second flexible substrate 121. The dimming functional layer further includes a first electrode layer 112, a second electrode layer 122, a first alignment layer 113 and a second alignment layer 123, as shown in fig. 1a and 1 b. The liquid crystal layer 130 is configured to change the light transmission amount of the dimming function layer 100 under the electric field of the first electrode layer 112 and the second electrode layer 122. The liquid crystal layer comprises liquid crystal and dichroism dye, the dichroism dye and the liquid crystal are in guest-host effect, the dichroism dye can rotate along with the liquid crystal, and the light absorption brightness of the dichroism dye gradually decreases along with the rotation angle. When the first electrode layer 112 and the second electrode layer 122 are not electrified, the liquid crystal and the dichroic dye molecules do not rotate, the light absorption brightness of the liquid crystal layer is minimum, and the dimming functional layer is in a bright state, as shown in fig. 1 a; when the first electrode layer 112 and the second electrode layer 122 are energized, the rotation angle of the liquid crystal and the dichroic dye molecules reaches a maximum value of 90 °, the light absorption amount of the liquid crystal layer reaches a maximum, and the dimming functional layer is in a dark state as shown in fig. 1 b.

Illustratively, the light-adjusting glass may be curved, as shown in fig. 4, the first glass layer 31, the second glass layer 32 and the light-adjusting functional layer 100 are all curved, and the shapes of the first glass layer 31, the second glass layer 32 and the light-adjusting functional layer 100 are matched, so that the light-adjusting glass is curved.

In one embodiment, the thickness of the first glass layer 31 may range from 10mm to 14mm (inclusive), for example, the thickness of the first glass layer 31 may be any of 10mm to 14mm, such as 10mm, 11mm, 12mm, 13mm, or 14mm. The thickness of the second glass layer 32 may range from 10mm to 14mm (inclusive), for example, the thickness of the second glass layer 32 may be any of 10mm to 14mm, for example, 10mm, 11mm, 12mm, 13mm, or 14mm.

In one embodiment, the gas in the first gas layer 33 may be one of air, argon, krypton, xenon, or the like, or a mixture of gases.

Fig. 5a is a schematic structural view of a light-adjusting glass according to another embodiment of the present disclosure, and fig. 5b is a schematic structural view of a light-adjusting glass according to another embodiment of the present disclosure. Illustratively, the first glass layer 31 may be a tempered glass or a laminated glass (also called a laminated glass); the second glass layer 32 may be tempered glass or laminated glass. In the light control glass shown in fig. 5a, the first glass layer 31 is laminated glass, and the second glass layer 32 is tempered glass. In the light control glass shown in fig. 5b, the first glass layer 31 and the second glass layer 32 are both laminated glass.

It is understood that the laminated glass may include two glass layers and a film between the two glass layers, and the film may be a PVB film or an EVA film, and the two glass layers are integrated by the film.

For example, an infrared-proof coating or an infrared-proof film may be provided on the outside of the first glass layer 31 (on the side facing away from the light-adjusting function layer 100) and/or on the outside of the second glass layer 32 (on the side facing away from the light-adjusting function layer 100). For example, a Low-e film may be provided on the inner side of the first glass layer 31 (the side facing away from the dimming function layer 100) and/or on the inner side of the second glass layer 32 (the side facing away from the dimming function layer 100). Alternatively, a Low-e film may be provided on the surface of the dimming functional layer 100. Alternatively, in the case where the first glass layer 31 and/or the second glass layer 32 are laminated glass, the angled glass may be a PVB film, which may insulate UV and ir. The dimming glass with the structure can further reduce the passing of near infrared light, reduce the heat transfer coefficient of the dimming glass, increase the shading coefficient of the dimming glass and improve the energy-saving effect of the dimming glass.

Illustratively, the anti-infrared coating can be selected from a thermal insulating coating made of materials including nano Indium Tin Oxide (ITO), nano Arsenic Trioxide (ATO), cesium tungsten bronze or rare earth particles. The PVB adhesive film can be selected from heat-insulating PVB doped with nano ITO particles, cesium tungsten bronze particles and an infrared reflection film layer; the PVB adhesive film also needs to increase the function of UV blocking, so that the weather resistance of the flexible dye liquid crystal functional layer is improved. The Low-e film can be made of silver (Ag), gold (Au), aluminum (Al) or other metal film layers or ITO or ATO or other transparent metal oxide film layers with near infrared reflection function.

In one embodiment, as shown in fig. 4, the fixing structure 40 may include a first spacer 41, and the first spacer 41 is disposed between the dimming function layer 100 and the first glass layer 31 along an edge of the dimming function layer 100. The first spacer 41 may be disposed such that a gap is formed between the dimming function layer 100 and the first glass layer 31, thereby forming the first gas layer 33.

In one embodiment, as shown in fig. 4, a second gas layer 34 is disposed between the dimming function layer 100 and the second glass layer 32. The fixing structure 40 may further include a second spacer 42, the second spacer 42 being disposed between the dimming functional layer 100 and the second glass layer 32 along an edge of the dimming functional layer 100. The second spacer 42 may be disposed such that a gap is formed between the dimming function layer 100 and the second glass layer 32, thereby forming the second gas layer 34.

In one embodiment, as shown in fig. 4, the securing structure 40 may further include a sealant 43 located at the outer periphery of the first and second spacer bars 41 and 42. The sealant 43 may seal the first spacer 41 with the dimming functional layer 100 and the first glass layer 31, and the sealant 43 may seal the second spacer 42 with the dimming functional layer 100 and the second glass layer 32, so as to prevent water vapor from entering the first gas layer 33 and the second gas layer 34.

Illustratively, the thicknesses of the first and second gas layers 33 and 34 may be set according to the application environment of the light-adjusting glass, and when the light-adjusting glass is applied to a building, the thicknesses of the first and second gas layers 33 and 34 may range from 11mm to 13mm (inclusive), i.e., the thicknesses of the first and second gas layers 33 and 34 may be any value from 11mm to 13mm, for example, 12mm.

Illustratively, the sealant 43 may include a first sealant and a second sealant, the first sealant may be located at the outer periphery of the first and second spacer bars 41 and 42, and the second sealant may be located at the outer periphery of the first sealant. The first sealant may be a hot-melt butyl adhesive, a polyisobutylene adhesive, a comfort adhesive, or the like, so that the first sealant may block moisture from entering the first gas layer 33 and the second gas layer 34. The second sealant can be silicone adhesive, polyurethane adhesive or polysulfide adhesive, etc., so that the second sealant can maintain the structural stability of the dimming glass.

In one embodiment, the first spacer 41 may be made of a material having waterproof property, and the sealant 43 may be disposed between the first spacer 41 and the first glass layer 31, and between the first spacer 41 and the dimming function layer 100 such that the dimming function layer 100 is fixed to the first glass layer 31. The second spacer 42 may be made of a material having a waterproof property, and the sealant 43 may be disposed between the second spacer 42 and the second glass layer 32 and between the second spacer 42 and the dimming function layer 100 such that the dimming function layer 100 is fixed to the second glass layer 32.

In one embodiment, as shown in fig. 4, the dimming functional layer 100 is provided in a preset shape. The dimming glass may further include first and second shape maintaining tabs 35 and 36 abutted on opposite sides of the dimming functional layer 100, each of the first and second shape maintaining tabs 35 and 36 being matched to a preset shape of the dimming functional layer 100, the first and second shape maintaining tabs 35 and 36 being configured to provide support to the dimming functional layer 100 to maintain the dimming functional layer 100 in the preset shape.

It can be appreciated that when the dimming functional layer is a flexible dimming functional layer, the device for installing the dimming glass, such as jolt of a vehicle in running or vibration caused by wind power and the like on building doors and windows, may enable the flexible dimming functional layer to swing, so that the shape of the flexible dimming functional layer is affected, and the dimming effect and the service life of the dimming glass are affected. By providing the first shape maintaining sheet 35 and the second shape maintaining sheet 36, support can be provided to the dimming functional layer 100 to maintain the dimming functional layer 100 in a preset shape, and swing deformation of the dimming functional layer 100 due to jolt or vibration is avoided, so that the dimming functional layer 100 can always maintain the preset shape, the dimming effect of the dimming glass is improved, and the service life of the dimming glass is prolonged.

The first shape retaining piece 35 and the second shape retaining piece 36 are respectively abutted against opposite sides of the light modulation function layer 100, and therefore, the light modulation function layer 100 is not subjected to a longitudinal external force from the first shape retaining piece 35 and the second shape retaining piece 36, that is, the first shape retaining piece 35 and the second shape retaining piece 36 do not have an influence on the box thickness of the light modulation function layer 100.

Illustratively, the material of the first shape retaining sheet 35 may be a transparent material, such as a transparent plastic. The material of the first shape retaining sheet 35 may be a transparent material such as polymethyl methacrylate (PMMA) or Polycarbonate (PC). The thickness of the first shape-retaining sheet 35 may range from 0.5mm to 1mm (inclusive), for example, the thickness of the first shape-retaining sheet 35 may be any value from 0.5mm to 1 mm. The material of the second shape retaining sheet 36 may be a transparent material, such as a transparent plastic. The material of the second shape retaining sheet 36 may be a transparent material such as polymethyl methacrylate (PMMA) or Polycarbonate (PC). The thickness of the second shape retention tab 36 may range from 0.5mm to 1mm (inclusive), for example, the thickness of the second shape retention tab 36 may be any of 0.5mm to 1 mm.

The first shape retaining sheet 35 and the second shape retaining sheet 36 may be curved to have the same curvature as the first glass layer 31 or the second glass layer 32 by a hot bending process. The hot bending process temperature is typically around the glass transition temperature of the polymer. After the first shape maintaining sheet 35 and the second shape maintaining sheet 36 reach the curved surface having the same curvature as the first glass layer 31 or the second glass layer 32, the dimming function layer 100 is placed between the first shape maintaining sheet 35 and the second shape maintaining sheet 36, so that the dimming function layer 100 is bent into a preset shape.

It will be appreciated that when the first shape retention tab 35 and the second shape retention tab 36 are provided, the first spacer 41 is positioned between the first shape retention tab 35 and the first glass layer 31 and the second spacer 42 is positioned between the second shape retention tab 36 and the second glass layer 32.

In one embodiment, a desiccant may be disposed within the first gas layer 33 and/or a desiccant may be disposed within the second gas layer 34. The desiccant may further absorb moisture, maintaining dryness of the first and second gas layers 33 and 34, preventing the entering moisture from affecting the performance and lifetime of the dimming glass.

Fig. 6a is a schematic structural view of a light-adjusting glass according to another embodiment of the present disclosure, fig. 6b is a schematic structural view of a light-adjusting glass according to another embodiment of the present disclosure, and fig. 6c is a schematic structural view of a light-adjusting glass according to another embodiment of the present disclosure. In one embodiment, as shown in fig. 6a, 6b and 6c, the dimming functional layer 100 is provided in a preset shape. The dimming glass may further include a support 37 filled in the first gas layer 33, and a surface of the support 37 facing the dimming functional layer 100 has a shape matching a preset shape of the dimming functional layer 100, so that the support 37 may provide support to the dimming functional layer 100 to maintain the dimming functional layer 100 in the preset shape. The support 37 is filled in the first gas layer 33, so that the support is not required to be arranged on the other side (upper side) of the dimming functional layer 100, the dimming functional layer 100 can keep its preset shape, the flexible dimming functional layer is prevented from swinging and deforming due to jolt or vibration, the dimming functional layer 100 can always keep the preset shape, the dimming effect of the dimming glass is improved, and the service life of the dimming glass is prolonged.

The material of the support 37 may be a transparent polymer material. The surface of the support 37 facing the side of the dimming functional layer 100 may be the same as the curvature of the first glass layer 31, so that the support 37 may form a support for the flexible dimming functional layer 100, and the dimming functional layer 100 may maintain its preset shape under the supporting effect of the support 37.

In one embodiment, as shown in fig. 6a, 6b and 6c, the support 37 is adhered to the side of the first glass layer 31 facing the dimming function layer 100, so that the support 37 is filled in the first gas layer 33. In such a structure, the support 37 and the dimming functional layer 100 are not adhered, and the surface of the support 37 facing the dimming functional layer 100 is only in contact with and supported by the surface of the dimming functional layer 100, so that the longitudinal force of the dimming functional layer 100 is not generated, and the thickness of the dimming functional layer 100 is not affected.

Illustratively, the support 37 may be adhered to the first glass layer 31 by a PVB adhesive film or an EVA adhesive film.

Fig. 7 is a schematic structural diagram of a dimming glass according to another embodiment of the present disclosure. As shown in fig. 7, the dimming glass may include a laminated glass 51, a glue layer 52, and a dimming functional layer 100, wherein the dimming functional layer 100 is adhered to one side of the laminated glass 51 through the glue layer 52, and one side of the dimming functional layer 100 facing away from the laminated glass 51 is exposed to air.

According to the dimming glass in the embodiment of the disclosure, one side of the dimming functional layer 100 is adhered to the laminated glass 51 through the adhesive layer 52, and the other side of the dimming functional layer 100 is exposed to the air, so that stress of the dimming functional layer 100 generated in the process of adhering the dimming functional layer 100 to the laminated glass 51 through the adhesive layer 52 can be released through one side of the dimming functional layer 100 exposed to the air, uneven box thickness of the dimming functional layer 100 is avoided, the dimming functional layer 100 is kept to be uniform in box thickness, and white spots and black Mura caused by uneven box thickness are avoided.

In one embodiment, the glue layer 52 may be an optical glue (OCA glue).

In one embodiment, the adhesive layer 52 may be an EVA adhesive film or a PVB adhesive film.

In one embodiment, the dimming glass may further include a protective cover plate disposed at a side of the dimming functional layer 100 facing away from the laminated glass 51. The protection cover plate can protect the dimming functional layer 100 and prevent the dimming functional layer 100 from being damaged. The protective cover plate may be a transparent plastic shell, and the protective cover plate may be made of a transparent material such as polymethyl methacrylate (PMMA) or Polycarbonate (PC).

The embodiment of the disclosure also provides a preparation method of the dimming glass, which comprises the following steps:

laminating the laminated glass 51, the adhesive film 52, the light adjusting function layer 100 and the auxiliary plate 53 in sequence;

the laminated glass 51, the adhesive film 52, the dimming functional layer 100 and the auxiliary plate 53 which are sequentially laminated are laminated by adopting a lamination process, as shown in fig. 8, fig. 8 is a schematic structural diagram after lamination in the preparation process of the dimming glass according to an embodiment of the disclosure;

the auxiliary plate 53 is removed to release the lamination stress, so as to form a light-adjusting glass, which comprises a laminated glass 51, a glue film 52 and a light-adjusting functional layer 100 which are sequentially laminated, as shown in fig. 7.

According to the preparation method of the dimming glass in the embodiment of the disclosure, no adhesive film is arranged between the auxiliary plate 53 and the dimming functional layer 100, so that after a lamination process is adopted, the auxiliary plate and the dimming functional layer are not in adhesive connection, and the auxiliary plate 53 can be removed after the lamination process, so that one side of the dimming functional layer 100, which is far away from the laminated glass 51, is exposed to the air, and the stress formed by the dimming functional layer 100 in the lamination process can be released through one side of the dimming functional layer, so that the problems of white spots, mura and the like caused by lamination stress are solved.

The material of the auxiliary plate may be, for example, resin.

Illustratively, the adhesive film 52 may be an EVA adhesive film or a PVB adhesive film.

Illustratively, the laminated glass 51 may employ a PVB film that may be UV and IR resistant. The dimming glass with the structure can further reduce the passing of near infrared light, reduce the heat transfer coefficient of the dimming glass, increase the shading coefficient of the dimming glass and improve the energy-saving effect of the dimming glass.

Based on the inventive concepts of the foregoing embodiments, embodiments of the present disclosure also provide a glass device including the dimming glass of any of the embodiments of the present disclosure.

The glass device can be applied to traffic facilities such as automobiles, trains, airplanes and the like, and also can be applied to buildings such as intelligent building windows, building curtain walls and the like.

In the description of the present specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present disclosure.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present disclosure, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present disclosure, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.

In this disclosure, unless expressly stated or limited otherwise, a first feature being "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the disclosure. The components and arrangements of specific examples are described above in order to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present disclosure. Furthermore, the present disclosure may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

The above is merely a specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think of various changes or substitutions within the technical scope of the disclosure, which should be covered in the protection scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (8)

1. The dimming glass is characterized by comprising a first glass layer and a second glass layer which are oppositely arranged, and a dimming functional layer positioned between the first glass layer and the second glass layer, wherein the dimming glass further comprises a fixing structure arranged along the edge of the dimming functional layer, the dimming functional layer is fixed on the first glass layer and the second glass layer through the fixing structure, and a first gas layer is arranged between the dimming functional layer and at least the first glass layer;

the dimming functional layer is arranged to be in a preset shape, the dimming glass further comprises a support filled in the first gas layer, the shape of the surface of the support facing the side of the dimming functional layer is matched with the preset shape of the dimming functional layer, and the support is configured to provide support for the dimming functional layer so that the dimming functional layer maintains the preset shape;

the dimming glass is in a curved surface shape, and the surface of the support facing one side of the dimming function layer is the same as the curvature of the first glass layer.

2. The dimmed glass according to claim 1, wherein the securing structure comprises a first spacer bar disposed between the dimmed functional layer and the first glass layer along an edge of the dimmed functional layer.

3. The dimmed glass according to claim 2, wherein a second gas layer is disposed between the dimmed functional layer and the second glass layer, the fixation structure further comprising a second spacer disposed between the dimmed functional layer and the second glass layer along an edge of the dimmed functional layer.

4. A dimming glass as claimed in claim 3, wherein the fixing structure further comprises a sealant at the periphery of the first and second spacer bars.

5. The dimming glass as claimed in claim 1, wherein the support is adhered to a side of the first glass layer facing the dimming function layer such that the support is filled in the first gas layer.

6. A dimming glass as claimed in claim 3, wherein a desiccant is provided in the first gas layer and/or the second gas layer.

7. The dimming glass of claim 1, wherein the first glass layer is laminated glass or tempered glass; the second glass layer is laminated glass or toughened glass.

8. A glass device comprising the light-adjusting glass according to any one of claims 1 to 7.