CN113625484A

CN113625484A - Dimming glass, preparation method thereof and glass device

Info

Publication number: CN113625484A
Application number: CN202111123750.4A
Authority: CN
Inventors: 王昌银; 王春雷; 李展; 翟德深; 陈娟; 梁鹏; 王瑛; 巨小倩; 张思凯; 吴小龙
Original assignee: BOE Technology Group Co Ltd; Beijing BOE Sensor Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Beijing BOE Sensor Technology Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2021-11-09
Anticipated expiration: 2041-09-24
Also published as: CN113625484B

Abstract

The embodiment of the disclosure provides dimming glass, a preparation method thereof and a glass device. Dimming glass is including relative first glass layer and the second glass layer that sets up to and be located the functional layer of adjusting luminance between first glass layer and the second glass layer, and dimming glass still includes the fixed knot structure that sets up along the edge of the functional layer of adjusting luminance, and the functional layer of adjusting luminance is fixed in first glass layer and second glass layer through fixed knot structure, and the functional layer of adjusting luminance is provided with first gas layer at least between with the first glass layer. According to the technical scheme, the light-dimming functional layer sheet is not required to be closed between the first glass layer and the second glass layer by adopting the sheet closing process, the pressure caused by the sheet closing process is avoided to be uneven, the light-dimming functional layer is not subjected to external force any more, the light-dimming functional layer can keep the original box thickness and the box thickness to be even, 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 of the dimming glass and a glass device.

Background

Skylight and side window of passenger car are mostly hyperbolic curved glass, and with the rich and colorful architectural curtain wall shapes, 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 surface dimming glass.

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

Disclosure of Invention

The embodiment of the disclosure provides a light-adjusting glass, a preparation method thereof and a glass device, so as to solve or alleviate one or more technical problems in the prior art.

As a first aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a light control glass, including a first glass layer and a second glass layer that are disposed opposite to each other, and a light control functional layer located between the first glass layer and the second glass layer, the light control glass further includes a fixing structure disposed along an edge of the light control functional layer, the light control functional layer is fixed to the first glass layer and the second glass layer through the fixing structure, and a first gas layer is disposed between the light control functional layer and at least the first glass layer.

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

In some possible implementations, a second gas layer is disposed between the dimming functional layer and the second glass layer, and the fixing 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 fixation structure further includes a sealant located at a periphery of the first and second spacer bars.

In some possible implementations, the dimming function layer is provided in a preset shape, and the dimming glass further includes first and second shape-retaining pieces respectively abutting on opposite sides of the dimming function layer, the first and second shape-retaining pieces each matching the preset shape of the dimming function layer, the first and second shape-retaining pieces being configured to provide support to the dimming function layer to maintain the dimming function layer in the preset shape.

In some possible implementations, the thickness of the first shape-retaining sheet ranges from 0.5mm to 1mm, the thickness of the second shape-retaining sheet ranges from 0.5mm to 1mm, and the material of both the first shape-retaining sheet and the second shape-retaining sheet is a transparent material.

In some possible implementations, the dimming function layer is configured to have 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 function layer matches the preset shape of the dimming function layer, and the support is configured to provide support to the dimming function layer to maintain the dimming function layer in the preset shape.

In some possible implementations, the support is attached to a side of the first glass layer facing the dimming functional 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, the embodiments of the present disclosure provide a light-adjusting glass, which includes laminated glass, a glue layer, and a light-adjusting functional layer, wherein the light-adjusting functional layer is pasted on one side of the laminated glass through the glue layer, and one side of the light-adjusting functional layer, which is away from the laminated glass, is exposed in the air.

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

In some possible implementations, the dimming function layer includes a first flexible substrate and a second flexible substrate that are oppositely disposed, and a liquid crystal layer located between the first flexible substrate and the second flexible substrate, and the dimming glass is curved.

As a third aspect of the embodiments of the present disclosure, embodiments of the present disclosure provide a method for manufacturing a light control glass, including:

laminating laminated glass, a glue film, a dimming functional layer and an auxiliary plate in sequence;

laminating laminated glass, a glue film, a dimming functional layer and an auxiliary plate which are sequentially laminated by adopting a laminating process;

and removing the auxiliary plate to release the sheet combining stress 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 embodiments of the present disclosure, embodiments of the present disclosure provide a glass apparatus including a privacy glass in the embodiments of the present disclosure.

According to the technical scheme, the light-dimming function layer is not required to be closed between the first glass layer and the second glass layer by adopting a laminating process, pressure unevenness caused by the laminating process is avoided, the light-dimming function layer is not subjected to external force any more, the light-dimming function layer can keep the original box thickness, the uniformity of the box thickness is kept, and white spots and black Mura caused by the non-uniform box thickness are avoided.

The foregoing summary is provided for the purpose of description 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 be readily apparent by reference to the drawings and following detailed description.

Drawings

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

FIG. 1a is a diagram illustrating a bright state of a dimming functional layer;

FIG. 1b is a schematic diagram of a dark state of a dimming functional layer;

FIG. 2 is a schematic structural diagram of a light control glass in the related art;

fig. 3 is a schematic view of a shape of a dimming function layer in the dimming glass shown in fig. 2;

fig. 4 is a schematic structural diagram of a light control glass according to an embodiment of the disclosure;

fig. 5a is a schematic structural diagram of a light control glass according to another embodiment of the present disclosure;

fig. 5b is a schematic structural diagram of a light control glass according to another embodiment of the present disclosure;

fig. 6a is a schematic structural diagram of a light control glass according to another embodiment of the present disclosure;

fig. 6b is a schematic structural diagram of a light control glass according to another embodiment of the present disclosure;

fig. 6c is a schematic structural diagram of a light control glass according to another embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a light control glass according to another embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of the light control glass according to an embodiment of the present disclosure after lamination in a manufacturing process.

Description of reference numerals:

100. a dimming function 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. first tempered glass; 212. a glue film; 221. 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. laminated glass; 52. a glue layer; 53. an auxiliary plate.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art can appreciate, the described embodiments can 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 diagram of a bright state of a dimming functional layer, and fig. 1b is a schematic diagram of a dark state of the dimming functional layer. As shown in fig. 1a and 1b, the dimming function layer 100 may be a flexible dimming function 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 function layer further comprises 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 dichroic dye, the dichroic dye and the liquid crystal are in guest-host effect, the dichroic dye can rotate along with the liquid crystal, and the light absorption brightness of the dichroic dye is gradually reduced along with the rotation angle. When the first electrode layer 112 and the second electrode layer 122 are not energized, the liquid crystal and the dichroic 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 powered on, 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 function layer shown in fig. 1a and 1b uses a vertical electric field, that is, the first electrode layer 112 and the second electrode layer 122 are respectively located at two 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 can be set as required, so long as the rotation of the liquid crystal can be controlled, and then the light transmission quantity of the flexible dimming functional layer can be controlled.

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

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

Fig. 4 is a schematic structural diagram of a light control 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 that are oppositely disposed, and a dimming function layer 100 between the first glass layer 31 and the second glass layer 32. The light control glass further includes a fixing structure 40, the fixing structure 40 is disposed along an edge of the light control functional layer 100, and the light control 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 the dimming function layer 100 and at least the first glass layer 31.

The dimming glass in the embodiment of the present disclosure, dimming function layer 100 is fixed in first glass layer 31 and second glass layer 32 through fixed knot constructs 40, dimming function layer 100 is provided with first gas layer 33 at least between at least and first glass layer 31, the dimming glass of this kind of structure, no longer need adopt the piece technology of closing the dimming function layer 100 piece between first glass layer 31 and second glass layer 32, the pressure that has avoided the piece technology of closing to lead to is inhomogeneous, make dimming function layer 100 no longer receive external force, thereby, dimming function layer 100 can keep original box thickness, keep the even of box thickness, avoid white spot and black Mura that the box thickness is uneven leads to. 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 function layer 100 may be a flexible dimming function layer. As shown in fig. 1a and 1b, the dimming function 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 function layer further comprises 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 amount of light transmission of the dimming function layer 100 by an electric field of the first electrode layer 112 and the second electrode layer 122. The liquid crystal layer comprises liquid crystal and dichroic dye, the dichroic dye and the liquid crystal are in guest-host effect, the dichroic dye can rotate along with the liquid crystal, and the light absorption brightness of the dichroic dye is gradually reduced along with the rotation angle. When the first electrode layer 112 and the second electrode layer 122 are not energized, 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 function 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 of 90 °, the light absorption amount of the liquid crystal layer reaches a maximum, and the dimming function layer is in a dark state, as shown in fig. 1 b.

For example, the light control glass may have a curved surface shape, as shown in fig. 4, the first glass layer 31, the second glass layer 32 and the light control function layer 100 each have a curved surface shape, and the shapes of the first glass layer 31, the second glass layer 32 and the light control function layer 100 are matched, so that the light control glass has a curved surface shape.

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 value from 10mm to 14mm, such as 10mm, 11mm, 12mm, 13mm, or 14 mm. 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, such as 10mm, 11mm, 12mm, 13mm, or 14 mm.

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

Fig. 5a is a schematic structural diagram of a light control glass in another embodiment of the present disclosure, and fig. 5b is a schematic structural diagram of a light control glass in another embodiment of the present disclosure. Illustratively, the first glass layer 31 may be tempered glass or laminated glass (also called 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 an adhesive film located between the two glass layers, the adhesive film may be a PVB adhesive film or an EVA adhesive film, and the two glass layers are integrated through the adhesive film.

For example, an infrared-proof coating or an infrared-proof film may be provided on both the outer side of the first glass layer 31 (the side facing away from the dimming function layer 100) and/or the outer side of the second glass layer 32 (the side facing away from the dimming function layer 100). For example, a Low-e film may be disposed on both the inner side of the first glass layer 31 (the side facing away from the dimming function layer 100) and/or 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 function layer 100. Alternatively, in the case that the first glass layer 31 and/or the second glass layer 32 are laminated glass, the included angle glass may adopt a PVB adhesive film, and the PVB adhesive film may isolate UV and infrared. 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 sun-shading coefficient of the dimming glass and improve the energy-saving effect of the dimming glass.

Illustratively, the infrared-proof coating can be selected from thermal insulation coatings made of materials such as 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 infrared reflection film layers; the PVB adhesive film also needs to be added with a UV blocking function, so that the weather resistance of the flexible dye liquid crystal functional layer is improved. The Low-e film can be made of a metal film layer with a near-infrared reflection function, such as silver (Ag), gold (Au), aluminum (Al) and the like, or a transparent metal oxide film layer, such as ITO (indium tin oxide), ATO (antimony tin oxide) and the like.

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 bars 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 bar 42, and the second spacer bar 42 is disposed between the dimming function layer 100 and the second glass layer 32 along an edge of the dimming function layer 100. The second spacer bars 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 fixing structure 40 may further include a sealant 43 located at the periphery of the first and second spacer bars 41 and 42. The sealant 43 may hermetically connect the first spacer 41 to the dimming function layer 100 and the first glass layer 31, respectively, and the sealant 43 may hermetically connect the second spacer 42 to the dimming function layer 100 and the second glass layer 32, respectively, to prevent water vapor from entering the first gas layer 33 and the second gas layer 34.

For example, the thicknesses of the first gas layer 33 and the second gas layer 34 may be set according to an application environment of the light control glass, and when the light control glass is applied to a building, the thicknesses of the first gas layer 33 and the second gas layer 34 may range from 11mm to 13mm (inclusive), that is, the thicknesses of the first gas layer 33 and the second gas layer 34 may be any value of 11mm to 13mm, for example, 12 mm.

Illustratively, the sealant 43 may include a first bead of sealant, which may be located at the periphery of the first and second spacer bars 41 and 42, and a second bead of sealant, which may be located at the periphery of the first bead of sealant. The first sealant can be hot melt butyl rubber, polyisobutylene rubber, or a comfortable adhesive tape, and the like, so that the first sealant can prevent water vapor from entering the first gas layer 33 and the second gas layer 34. The second sealant can adopt silicone adhesive, polyurethane adhesive or polysulfide adhesive, and the like, so that the second sealant can keep the structural stability of the light-adjusting glass.

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

In one embodiment, as shown in fig. 4, the dimming function layer 100 is provided in a predetermined shape. The dimming glass may further include first and second shape-retaining

pieces

35 and 36 abutting on opposite sides of the dimming function layer 100, each of the first and second shape-retaining

pieces

35 and 36 matching a preset shape of the dimming function layer 100, the first and second shape-retaining

pieces

35 and 36 being configured to provide support to the dimming function layer 100 to maintain the dimming function layer 100 in the preset shape.

It can be understood that, when the dimming functional layer is a flexible dimming functional layer, the flexible dimming functional layer may swing due to the device for mounting the dimming glass, such as jolt of a vehicle in driving or vibration of building doors and windows caused by wind force, so as to affect the shape of the flexible dimming functional layer, and further affect the dimming effect and the service life of the dimming glass. Through setting up first shape retaining piece 35 and second shape retaining piece 36, can provide the support so that the functional layer 100 of adjusting luminance keeps presetting the shape to the functional layer 100 of adjusting luminance, avoid flexible functional layer 100 of adjusting luminance to produce the swing deformation because jolt or vibrations for the functional layer 100 of adjusting luminance can keep presetting the shape all the time, improves the dimming effect of dimming glass, prolongs dimming glass's life.

It should be noted that the first and second shape-retaining

pieces

35 and 36 are respectively abutted on opposite sides of the dimming functional layer 100, and therefore, the dimming functional layer 100 is not subjected to a longitudinal external force from the first and second shape-retaining

pieces

35 and 36, that is, the first and second shape-retaining

pieces

35 and 36 do not affect the box thickness of the dimming functional 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 tabs 36 may be a transparent material, such as a transparent plastic. The second shape retaining sheet 36 may be made of a transparent material such as polymethyl methacrylate (PMMA) or Polycarbonate (PC). The thickness of the second shape retaining tabs 36 may range from 0.5mm to 1mm, inclusive, for example, the thickness of the second shape retaining tabs 36 may be any value from 0.5mm to 1 mm.

It is to be noted that the first shape-retaining piece 35 and the second shape-retaining piece 36 can be brought into a curved surface of the same curvature as the first glass layer 31 or the second glass layer 32 by the hot bending process. The hot-bending process temperature is generally around the glass transition temperature of the polymer. After the first and second shape-retaining

pieces

35 and 36 reach a curved surface having the same curvature as the first or

second glass layer

31 or 32, the dimming function layer 100 may be bent into a predetermined shape by placing the dimming function layer 100 between the first and second shape-retaining

pieces

35 and 36.

It will be appreciated that when the first shape-retaining sheet 35 and the second shape-retaining sheet 36 are provided, the first spacer bars 41 are located between the first shape-retaining sheet 35 and the first glass layer 31, and the second spacer bars 42 are located between the second shape-retaining sheet 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 can further absorb moisture, maintain the dryness of the first gas layer 33 and the second gas layer 34, and prevent the entering moisture from affecting the performance and life of the dimming glass.

Fig. 6a is a schematic structural diagram of a light control glass in another embodiment of the present disclosure, fig. 6b is a schematic structural diagram of a light control glass in another embodiment of the present disclosure, and fig. 6c is a schematic structural diagram of a light control glass in another embodiment of the present disclosure. In one embodiment, as shown in fig. 6a, 6b and 6c, the dimming function 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 on a side facing the dimming function layer 100 has a shape matching a preset shape of the dimming function layer 100, so that the support 37 may provide support to the dimming function layer 100 to maintain the dimming function layer 100 in the preset shape. The support 37 is filled in the first gas layer 33, and therefore, it is no longer necessary to set a support on the other side (upper side) of the dimming functional layer 100, so that the dimming functional layer 100 can maintain its preset shape, and the flexible dimming functional layer is prevented from swinging and deforming due to jolt or vibration, 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 material of the support 37 may be a transparent polymer material. A surface of the support 37 facing the side of the dimming function layer 100 may have the same curvature as the first glass layer 31, so that the support 37 may support the flexible dimming function layer 100, and the dimming function layer 100 may maintain its preset shape by the support of the support 37.

In one embodiment, as shown in fig. 6a, 6b and 6c, the support 37 is adhered to the first glass layer 31 on the side facing the dimming function layer 100, so that the support 37 is filled in the first gas layer 33. With such a structure, the support 37 is not adhered to the dimming function layer 100, and the surface of the support 37 facing to the dimming function layer 100 is only in contact with the surface of the dimming function layer 100, so that a longitudinal force is not generated on the dimming function layer 100, and the box thickness of the dimming function 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 light control glass in another embodiment of the present disclosure. As shown in fig. 7, the light control glass may include a laminated glass 51, a glue layer 52, and a light control functional layer 100, wherein the light control functional layer 100 is adhered to one side of the laminated glass 51 through the glue layer 52, and one side of the light control functional layer 100 facing away from the laminated glass 51 is exposed to the air.

In the light control glass in the embodiment of the present disclosure, one side of the light control functional layer 100 is pasted on the laminated glass 51 through the glue layer 52, and the other side is exposed in the air, thereby, the stress to the light control functional layer 100 generated in the process of pasting the light control functional layer 100 on the laminated glass 51 through the glue layer 52 can be released through the side of the light control functional layer 100 exposed in the air, the uneven box thickness of the light control functional layer 100 is avoided, the uniformity of the box thickness of the light control functional layer 100 is favorably maintained, and the white spots and the black Mura caused by the 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 light control glass may further include a protective cover plate disposed on a side of the light control function layer 100 facing away from the laminated glass 51. The protective cover plate may protect the dimming function layer 100 to prevent the dimming function layer 100 from being damaged. For example, the protective cover plate may be a transparent plastic shell, and the material of the protective cover plate may be a transparent material such as polymethyl methacrylate (PMMA) or Polycarbonate (PC).

The embodiment of the present disclosure further provides a preparation method of the light control glass, including:

laminating laminated glass 51, a glue film 52, a dimming functional layer 100 and an auxiliary plate 53 in sequence;

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

the auxiliary plate 53 is removed to release the lamination stress, and the light control glass is formed, and the light control glass comprises laminated glass 51, a glue film 52 and a light control function layer 100 which are sequentially stacked, 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 the sheet combination process is adopted, the auxiliary plate and the dimming functional layer are not pasted and connected, the auxiliary plate 53 can be removed after the sheet combination process, one side of the dimming functional layer 100, which is far away from the laminated glass 51, is exposed in the air, and the stress formed by the sheet combination process on the dimming functional layer 100 can be released through the side of the dimming functional layer, which is exposed in the air, so that the problems of white spots, Mura and the like caused by the sheet combination stress are solved.

Illustratively, the material of the auxiliary plate may be resin.

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

For example, the laminated glass 51 may be a PVB film, and the PVB film may insulate UV and infrared. 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 sun-shading coefficient of the dimming glass and improve the energy-saving effect of the dimming glass.

Based on the inventive concept of the foregoing embodiments, the embodiments of the present disclosure further provide a glass device, which includes the light control glass in any embodiment of the present disclosure.

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

In the description of the present specification, it is to 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," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present disclosure and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present disclosure.

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

In the present disclosure, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The above disclosure provides many different embodiments or examples for implementing different features of the disclosure. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present disclosure. Moreover, the present disclosure may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.

While the present disclosure has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a dimming glass, its characterized in that, including relative first glass layer and the second glass layer that sets up, and be located first glass layer with dimming functional layer between the second glass layer, dimming glass still includes along the fixed knot that dimming functional layer's edge set up constructs, dimming functional layer passes through fixed knot constructs and is fixed in first glass layer with second glass layer, dimming functional layer at least with be provided with first gas layer between the first glass layer.

2. A privacy glass as claimed in claim 1, wherein the fixing structure comprises a first spacer disposed between the privacy functional layer and the first glass layer along an edge of the privacy functional layer.

3. A light control glass as defined in claim 2, wherein a second gas layer is disposed between the light control functional layer and the second glass layer, and wherein the fixing structure further comprises a second spacer disposed between the light control functional layer and the second glass layer along an edge of the light control functional layer.

4. A privacy glass as claimed in claim 3, wherein the fixing structure further comprises a sealant located around the first and second spacer bars.

5. The privacy glass of any one of claims 1 to 4, wherein the dimming functional layer is provided in a preset shape, the privacy glass further comprising first and second shape retaining pieces abutting against opposite sides of the dimming functional layer, respectively, each of the first and second shape retaining pieces matching a preset shape of the dimming functional layer, the first and second shape retaining pieces being configured to provide support to the dimming functional layer to cause the dimming functional layer to retain the preset shape.

6. A privacy glass as claimed in claim 5, wherein the first shape retaining sheet has a thickness in the range of 0.5mm to 1mm, the second shape retaining sheet has a thickness in the range of 0.5mm to 1mm, and the first and second shape retaining sheets are both made of a transparent material.

7. The light control glass according to any one of claims 1 to 4, wherein the light control functional layer is provided in a predetermined shape, the light control glass further comprises a support filled in the first gas layer, a surface of the support facing the light control functional layer has a shape matching the predetermined shape of the light control functional layer, and the support is configured to provide support to the light control functional layer so that the light control functional layer maintains the predetermined shape.

8. The light control glass according to claim 7, wherein the support is adhered to a side of the first glass layer facing the light control function layer so that the support is filled in the first gas layer.

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

10. A light control glass as claimed in claim 1, wherein the first glass layer is laminated glass or toughened glass; the second glass layer is laminated glass or toughened glass.

11. The utility model provides a dimming glass, its characterized in that, includes doubling glass, glue film and dimming functional layer, dimming functional layer passes through the glue film is pasted one side of doubling glass, the functional layer that deviates from of dimming one side of doubling glass exposes in the air.

12. A light control glass as recited in claim 11, further comprising a protective cover sheet disposed on a side of the light control functional layer facing away from the laminated glass.

13. A light control glass as claimed in claim 1 or 11, wherein the light control functional layer comprises a first flexible substrate and a second flexible substrate which are oppositely arranged, and a liquid crystal layer located between the first flexible substrate and the second flexible substrate, and the light control glass is curved.

14. A method for preparing light control glass is characterized by comprising the following steps:

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

and removing the auxiliary plate to release the sheet combining stress to form the dimming glass, wherein the dimming glass comprises the laminated glass, the adhesive film and the dimming functional layer which are sequentially overlapped.

15. A glass device comprising the privacy glass of any one of claims 1 to 13.