CN115519857A - Light control glass and vehicle - Google Patents

Light control glass and vehicle Download PDF

Info

Publication number
CN115519857A
CN115519857A CN202210962555.9A CN202210962555A CN115519857A CN 115519857 A CN115519857 A CN 115519857A CN 202210962555 A CN202210962555 A CN 202210962555A CN 115519857 A CN115519857 A CN 115519857A
Authority
CN
China
Prior art keywords
layer
glass
glass plate
light control
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210962555.9A
Other languages
Chinese (zh)
Inventor
严政
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuyao Glass Industry Group Co Ltd
Original Assignee
Fuyao Glass Industry Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuyao Glass Industry Group Co Ltd filed Critical Fuyao Glass Industry Group Co Ltd
Priority to CN202210962555.9A priority Critical patent/CN115519857A/en
Publication of CN115519857A publication Critical patent/CN115519857A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10779—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing polyester
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/023—Optical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/416—Reflective
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

The invention provides a light control glass and a vehicle. The dimming glass comprises a first glass plate, a first bonding layer, a dimming layer, a second bonding layer and a second glass plate which are sequentially stacked, wherein one surface of the second glass plate is provided with a functional layer; the light reflectivity of the surface of the second glass plate, which is back to the functional layer, to the wavelength range of 380-780nm is represented as RL1, the light reflectivity of the surface of the second glass plate, which is facing to the functional layer, to the wavelength range of 380-780nm is represented as RL2, and RL1-RL2 is more than or equal to 5%. The invention also provides a vehicle which comprises the light control glass. The dimming glass provided by the invention can display neutral-tone reflected color in a power-on state, and overcomes the defect that the color of the existing dimming glass is blue when the power-on state is realized.

Description

Light control glass and vehicle
Technical Field
The invention relates to the technical field of glass manufacturing, in particular to light modulation glass and a vehicle.
Background
The existing LOW-radiation temperature-control dimming laminated hollow glass uses LOW-E glass as inner-layer glass, and a film coating layer on the surface of the LOW-E glass can reflect medium and far infrared rays radiated by a human body and an object to the indoor in a long-wave form, so that the product has the functions of heat insulation and heat preservation. However, this type of light control glass, especially the glass whose light control film is SPD or EC, has a color difference color a value of > 5 or < -5 and a color b value of < -10 in the laminated glass after power is supplied, and the color is bluish when observed by naked eyes, and the color is small and not enough to satisfy the consumer demand. It is desirable to provide a glass product that can be dimmed and that has a neutral reflected color when energized.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a light control glass and a vehicle. The light control glass can display neutral-tone reflection color in the electrified state.
In order to achieve the above object, the present invention provides a light control glass, wherein the light control glass comprises a first glass plate, a first adhesive layer, a light control layer, a second adhesive layer, and a second glass plate, which are sequentially stacked, wherein one surface of the second glass plate is provided with a functional layer; the light reflectivity of the surface of the second glass plate, which is opposite to the functional layer, to the 380-780nm wavelength range is represented as RL1, the light reflectivity of the surface of the second glass plate, which is provided with the functional layer, to the 380-780nm wavelength range is represented as RL2, and the RL1-RL2 is more than or equal to 5 percent.
In the above light control glass, RL1 and RL2 may be measured by using a second glass plate provided with a functional layer as a sample.
According to a specific embodiment of the present invention, the light control glass includes a first glass plate, a first adhesive layer, a light control layer, a second adhesive layer, a second glass plate, and a functional layer; the first glass plate, the first bonding layer, the dimming layer, the second bonding layer, the second glass plate and the functional layer are sequentially arranged in a laminated manner, or the first glass plate, the first bonding layer, the dimming layer, the second bonding layer, the functional layer and the second glass plate are sequentially arranged in a laminated manner; as shown in a in fig. 1, the second glass plate 5 has an a surface 51 and a B surface 52, the functional layer 6 has a C surface 61 and a D surface 62, and the C surface 61 of the functional layer is in contact with the B surface 52 of the second glass plate (for clarity of illustration, a, B, and C in fig. 1 leave a gap between the layers in contact with each other); the difference between the light reflectance of the a-side 51 of the second glass plate and the light reflectance of the D-side 62 of the functional layer in the wavelength range of 380 to 780nm is 5% or more, as measured by using the second glass plate 5 and the functional layer 6 in contact with each other as samples.
In the light control glass, the B-side 52 of the second glass is a surface of the second glass plate 5 which is in contact with the functional layer 6; the second glass plate has an a-side 51 opposite to the B-side 52, and the a-side 51 is not in contact with the functional layer 6. The C-side 61 of the functional layer refers to the surface of the functional layer that is in contact with the second glass plate; the D-side 62 of the functional layer is opposite to the C-side 61, and the D-side 62 is not in contact with the second glass plate 5. The light reflectance of the a surface 51 of the second glass plate is a reflectance of a surface of the second glass plate not provided with the functional layer with respect to light of 380 to 780 nm; the light reflectance of the D-side 62 of the functional layer is the reflectance of the surface of the functional layer exposed to light in the wavelength range of 380 to 780nm in a state where the functional layer is in contact with the second glass plate.
In some embodiments, the RL1 is greater than or equal to 11%, and/or the RL2 is less than or equal to 6%. That is, in the second glass plate and the functional layer which are in contact with each other, the light reflectance of the a-side of the second glass plate to the wavelength range of 380 to 780nm may be 11% or more, and/or the light reflectance of the D-side of the functional layer to the wavelength range of 380 to 780nm may be 6% or less.
In some embodiments, the functional layer may be disposed on a surface of the second glass sheet facing away from the second adhesive layer, or alternatively, the functional layer may be disposed on a surface of the second glass sheet facing the second adhesive layer. That is, the B-side 52 of the second glass plate may face away from the second adhesive layer 4 (as shown in B in fig. 1), or may face the second adhesive layer 4 (as shown in c in fig. 1). Accordingly, in the light control glass, when one surface of the second glass plate is provided with the functional layer, an absolute value of a light reflectance to a wavelength range of 380 to 780nm of a surface of the second glass plate facing the second adhesive layer and a surface of the second glass plate facing away from the second adhesive layer may be 5% or more.
In some embodiments, when the functional layer is disposed on the surface of the second glass plate facing away from the second adhesive layer, the neutral light control glass has a light reflectance of less than or equal to 6% in a wavelength range of 380-780nm when the light control layer is in a power-on state. That is, when the surface B of the second glass plate faces away from the second adhesive layer, in the energized state of the light control layer, the light reflectance of the surface of the light control glass on the same side as the surface D of the functional layer (i.e., the surface of the light control glass exposed and provided with the functional layer) with respect to the wavelength range of 380 to 780nm is not more than 6%.
According to the invention, the difference value of the 380-780nm visible light reflectivity of the surfaces of the two sides of the second glass plate in the light adjusting glass is controlled to be more than 5%, so that the brightness and the color value displayed by the light adjusting glass in a power-on state can be adjusted, and the light adjusting glass with the neutral reflection color is obtained.
According to a particular embodiment of the invention, the color of the glass is generally evaluated using the values L, a and b. Wherein, the L value is a lightness value and represents the shade of the color of the product, namely the black and white of the product. The a and b values are color values, and a is a red-green value and is represented by red, green, positive and negative. The b value is a yellow-blue value and is represented by positive and negative directions of yellow and blue. In embodiments of the present invention, the L value of the privacy glass is generally 15 to 25, for example 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25; the value a of the privacy glass is generally-5 to 5, for example-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5; the b value of the privacy glass is typically-5 to 5, for example-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5. It can be seen that the light control glass provided by the invention displays a reflection color close to a neutral tone in a power-on state, and meanwhile, the brightness value of the light control glass is also kept in a proper range.
In some embodiments, the emissivity E of the light control glass is generally equal to or less than 0.25, and further, the emissivity E of the light control glass can be up to 0.2 or less. Compared with the common glass, the emissivity E of the common glass is as high as 0.84, the emissivity E of the dimming glass provided by the invention is obviously reduced, and the dimming glass has better heat preservation and insulation performance and energy-saving effect.
In some embodiments, the first glass plate and the second glass plate can be made of common glass. In some embodiments, the TL of the first glass sheet can be 80% to 90% and the TL of the second glass sheet can be 80% to 90%, wherein TL represents the integrated transmittance of visible light (wavelength is 380nm to 780 nm) at normal incidence, and can be measured according to ISO9050 "determination of building glass light transmittance, solar straight-through rate, solar total transmittance and ultraviolet transmittance, and related gloss factor".
In some embodiments, the light modulation layer may be a colored layer. Specifically, the light modulation layer may include an EC light modulation film, an SPD (suspended particle device) light modulation film, or the like, and the EC light modulation film is preferably used.
In some embodiments, the thickness of the light modulation layer is generally controlled to 0.76nm or less.
In some embodiments, the dimming layer may include a first film layer, a first conductive layer, a dimming color-changing layer, a second conductive layer, and a second film layer, which are sequentially stacked; the first film layer is adjacent to the first adhesive layer, and the second film layer is adjacent to the second adhesive layer.
In the light modulation layer, the material of the first film layer and/or the second film layer may include one or a combination of two or more of glass, PET (polyethylene terephthalate), PVC (polyvinyl chloride), and the like.
In the above-described dimming layer, the first conductive layer and/or the second conductive layer may include an ITO layer or the like.
In the above light modulation layer, the material of the light modulation color changing layer may be an electrochromic material.
In some embodiments, the first adhesive layer is capable of adhering the first glass plate and the dimming layer. The first adhesive layer may include one of a PVB (polyvinyl butyral), PU (polyurethane), EVA (ethylene vinyl acetate), SGP (ionic intermediate film, also known as Sentry Glas Plus).
In some embodiments, the thickness of the first adhesive layer is generally controlled to 0.76nm or less.
In some embodiments, the second adhesive layer is capable of adhering the dimming layer and the second glass plate; when the functional layer is arranged on the surface of the second glass plate close to the second adhesive layer, the second adhesive layer can be used for adhering the dimming layer and the functional layer. The second adhesive layer may include one of a PVB layer, a PU layer, an EVA layer, an SGP layer, and the like.
In some embodiments, the thickness of the second adhesive layer is generally controlled to be 0.76nm or less.
In some embodiments, the functional layer is disposed on one surface of the second glass plate and the reflectivity and index of refraction of the one surface of the second glass plate are adjusted such that the two side surfaces of the second glass plate have a difference in reflectivity for light in the wavelength range of 380nm to 780 nm. Meanwhile, the functional layer is arranged on one side of the second glass plate, and the function of one-way perspective can be realized.
In some embodiments, the functional layer has a thickness of generally 150nm to 350nm, for example 208.5nm, and the functional layer has a reflectance of generally 6% or less, further 5% or less, and still further 4% or less with respect to light having a wavelength of 380nm to 780 nm.
In some embodiments, the functional layer may include a barrier layer, a low-emissivity layer, a metal absorption layer, a first high refractive index layer, a low refractive layer, and a second high refractive index layer, which are sequentially stacked.
In some embodiments, the material of the barrier layer may include Si 3 N 4 、SiO 2 、AZO、ZnSnO x One or a combination of two or more of them.
In some embodiments, the thickness of the barrier layer is generally controlled to be 3nm or more.
In the functional layer, the low-radiation coating can effectively reduce the heat radiation emitted by the dimming glass to the indoor, and simultaneously prevent the heat radiation emitted from the indoor to the outside, so that the loss of indoor heat is reduced, and a certain heat preservation effect is achieved. In some embodiments, the material of the low-radiation layer may include one or a combination of two or more of ITO, AZO, FTO, and ATO.
In some embodiments, the thickness of the low-emissivity layer is generally controlled to be 100nm or more.
In the above functional layer, the metal absorption layer may absorb at least part of visible light in a wavelength range of 380 to 780 nm. In some embodiments, the material of the metal absorption layer may include one or a combination of two or more of NiCr, niFe, and Ni.
In some embodiments, the thickness of the metal absorber layer is generally controlled to be 10nm or less, and further may be 5nm or less.
In some embodiments, the material of the first high refractive index layer and/or the second high refractive index layer may include TaO x (TaO x Is an oxide of Ta, wherein x represents the molar ratio of oxygen to the metal element, in TiO x 、SiN x 、NbO x The same applies to (1) TiO x (oxide of Ti), siN x (nitride of Si), nbO x (oxide of Nb) is used.
In some embodiments, the thickness of the first high refractive-index layer and/or the second high refractive-index layer is generally controlled to be 70nm or less. Further, the thickness of the first high refractive index layer and/or the second high refractive index layer may be controlled to 10 to 50nm.
In some embodiments, the material of the low refractive index layer may include SiO 2 And/or SnO 2 。
In some embodiments, the thickness of the low refractive index layer is generally controlled to be 20 to 150nm, and further may be controlled to be 30 to 110nm.
In some embodimentsThe functional layer may specifically comprise sequentially stacked layers of 8nm thick Si 3 N 4 Layer, ITO layer with thickness of 130nm, niCr layer with thickness of 3.5nm, si layer with thickness of 11nm 3 N 4 Layer, siO with a thickness of 46nm 2 Layer of Si with a thickness of 10nm 3 N 4 And (3) a layer.
In some embodiments, the functional layer may be specifically composed of a functional film satisfying the above structural features.
The dimming glass provided by the invention can be applied to scenes with TL of 1-30%.
The invention also provides a vehicle which comprises the light control glass. When the light control glass is used as glass for a vehicle, the first glass plate of the light control glass is generally used as an outer glass plate and is adjacent to the air surface outside the vehicle; the second glass pane of the light control pane is generally adjacent to the air surface in the vehicle as the inner glass pane. In some embodiments, the light control glass can be used as a vehicle window glass.
The beneficial effects of the invention at least comprise:
according to the invention, by regulating and controlling the reflectivity difference value of two sides of the glass in the light modulation glass, the problem that the observed color of the light modulation glass in the prior art is blue can be solved, and the light modulation glass with neutral tone can be obtained. The neutral light control glass has simple structure and low manufacturing cost, and when the neutral light control glass is used as laminated glass for vehicles, the reflectivity of the glass on the inner side of the vehicle is low, the mirror effect is weak, and the riding comfort of passengers can be improved.
Drawings
FIG. 1 is a schematic view of the position of a second glass plate, a functional layer and a second adhesive layer in the present invention. Wherein, a is the position indication of the second glass plate and the functional layer, and b and c are the position indication of the second glass plate, the functional layer and the second bonding layer.
Fig. 2 is a schematic structural view of a light control glass of embodiment 1.
Fig. 3 is a schematic structural view of the light modulation layer of embodiment 1.
Fig. 4 is a schematic structural view of a light control glass of embodiment 2.
FIG. 5 is a schematic view of the test angle of test example 1.
Fig. 6 shows the results of the visible light reflectance test of the light control glass of example 1 and comparative example 1.
Fig. 7 is a result of a visible light reflectance test of the second glass plate provided with the functional film prepared in example 2.
Description of the symbols
The light-adjusting glass comprises a first glass plate 1, a first adhesive layer 2, a light-adjusting layer 3, a second adhesive layer 4, a second glass plate 5 and a functional layer 6. A first film 31, a first conductive layer 32, a photochromic layer 33, a second conductive layer 34, and a second film 35. The a-side 51 of the second glass plate, the B-side 52 of the second glass plate, the C-side 61 of the functional layer, and the D-side 62 of the functional layer.
Detailed Description
The technical solutions of the present invention will be described in detail below in order to clearly understand the technical features, objects, and advantages of the present invention, but the present invention is not limited to the practical scope of the present invention.
Example 1
The present embodiment provides a light control glass, which has a structure as shown in fig. 2. This light control glass includes: the light-adjusting glass comprises a first glass plate 1, a first bonding layer 2, a light-adjusting layer 3, a second bonding layer 4 and a second glass plate 5, wherein a functional layer 6 is arranged on one surface of the second glass plate 5.
The first glass plate 1 is made of ordinary glass, the surface of the first glass plate 1, which is back to the first bonding layer 2, is a first surface, and the surface of the first glass plate 1, which faces the first bonding layer 2, is a second surface. The thickness of the first glass plate 1 was 2.1mm.
The second glass plate 5 is made of ordinary glass, the surface of the second glass plate 5 facing the second adhesive layer 4 is a third surface, and the surface of the second glass plate 5 facing away from the second adhesive layer 4 is a fourth surface. The thickness of the second glass plate 5 was 2.1mm.
The first adhesive layer 2 is a transparent PVB layer (also called clear PVB layer), and the thickness of the first adhesive layer 2 is 0.76mm.
The second adhesive layer 4 is a transparent PVB layer, and the thickness of the second adhesive layer 4 is 0.38mm.
The light control layer 3 includes an EC light control film, an SPD (suspended particle device) light control film, and the like, and the EC light control film is preferable in this embodiment, and the entire thickness of the light control layer 3 is about 396.4 μm.
As shown in fig. 3, the dimming layer 3 is composed of a first film 31, a first conductive layer 32, a dimming color changing layer 33, a second conductive layer 34, and a second film 35, which are stacked. The first film 31 is joined to the first adhesive layer 2, and the second film 35 is joined to the second adhesive layer 4. The first film layer 31 and the second film layer 35 are both made of PET, the dimming color changing layer 33 is made of electrochromic material, and the first conductive layer and the second conductive layer are ITO layers respectively. The first film layer 31 has a thickness of 188 μm, the first conductive layer 32 has a thickness of 200nm, the photochromic layer 33 has a thickness of 20 μm, the second conductive layer 34 has a thickness of 200nm, and the second film layer 35 has a thickness of 188 μm.
The functional layer 6 is constituted by a functional film. The functional layer 6 is provided on the fourth surface of the second glass plate 5, and the relative position of the functional layer 6 and the second glass plate 5 is shown as b in fig. 1. The functional film comprises Si with the thickness of 8nm and sequentially arranged in a laminated manner 3 N 4 Layer, ITO layer with thickness of 130nm, niCr layer with thickness of 3.5nm, si layer with thickness of 11nm 3 N 4 Layer of SiO 46nm thick 2 Layer of Si with a thickness of 10nm 3 N 4 A layer. Wherein the thickness of Si is 8nm 3 N 4 The layer is attached to the fourth surface of the second glass plate 5.
Example 2
The present embodiment provides a light control glass, which has a structure as shown in fig. 4. The light control glass of the present embodiment is different from the light control glass of embodiment 1 in that: in this embodiment, the functional layer 6 is disposed on the third surface of the second glass plate 5, and the functional layer 6 is connected to the second adhesive layer 4, where the positions of the second adhesive layer 4, the second glass plate 5, and the functional layer 6 are as shown in fig. 1 c, so that the problems of abrasion or scratch caused by the functional film directly exposed outside the second glass plate contacting other substances can be avoided.
Comparative example 1
This comparative example provides a light control glass having a structure similar to that of example 1, except that: the light control glass of the present comparative example did not contain a functional film.
Test example 1
The test was carried out using the light control glass of example 1 and the light control glass of comparative example 1 as samples, with the brightness values (L values) and the color values (a x values and b x values) of the light control glass in the energized state, according to CIE 1976, D65 illuminant angle 10 degrees. Test angle as shown in fig. 5, the test was performed from the fourth surface of the second glass plate with the test incident light parallel to the glass normal.
The emissivity E of each sample is measured according to standard ISO 10292:1994 calculation of Steady State U value (Heat Transmission Rate) of architectural glass and multilayer glass.
The results of the above tests are summarized in table 1.
TABLE 1
Emissivity of E Value of L a value b value
Comparative example 1 0.84 31.83 9.38 -13.3
EXAMPLE 1 privacy glass 0.2 22.89 -1.75 -0.7
EXAMPLE 2 privacy glass 0.2 23.56 -1.58 -0.5
As can be seen from table 1, compared with the light control glass of comparative example 1, the light control glass provided in example 1 has a significantly reduced L value, and a and b values are closer to 0, which shows that the light control glass provided in the present invention shows a neutral color when the light control layer is in the energized state, and can overcome the disadvantage that the light control glass in the art has a bluish reflection color. Meanwhile, the radiance E of the dimming glass provided by the embodiment 1 is lower, and the dimming glass has better heat preservation and insulation performance and energy-saving effect.
Test example 2
The light-adjusting glass of the embodiment 1 and the comparative example 1 is used as a sample, the reflectivity of the light-adjusting glass to visible light with the wavelength of 380-780nm is tested when the light-adjusting layer is in the electrified state, and the transmission direction of the incident light is tested along the direction from the second glass plate to the first glass plate. The test results are shown in fig. 6.
As can be seen from fig. 6, after the functional film is added, the visible light reflectivity of the fourth surface of the second glass plate in the light control glass is obviously reduced to below 6%.
Test example 3
The second glass plate with the functional film on one side is used as a sample (the structural characteristics of the functional film and the second glass plate are the same as those of the example 2), and the visible light reflectivity of the second glass plate at 380-780nm is tested when the dimming layer is in the power-on state. One test direction is that incident light enters from the surface of the second glass plate without the functional film, and the test result is recorded as RL1; the other test direction was that incident light entered from the surface provided with the functional film, and the test result was recorded as RL2. The results are shown in FIG. 7.
The test results showed that the visible light reflectance of the second glass plate on the side without the functional film was about 9%, while the visible light reflectance of the second glass plate on the side with the functional film was 3%, and the difference in visible light reflectance between the two sides of the second glass plate was 6%.
By combining the results of test examples 1 to 3, the present invention can provide a difference in reflectance on both surfaces of the second glass by adding the functional layer on one side of the second glass plate of the light control glass, and can make the reflection color of the light control glass in the energized state closer to the neutral color tone, thereby solving the problem that the reflection color of the light control glass in the energized state is bluish.
In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. The above description is only an example of the embodiments of the present disclosure, and is not intended to limit the embodiments of the present disclosure. Various modifications and alterations to the embodiments described herein will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the embodiments of the present invention should be included in the scope of the claims of the embodiments of the present invention.

Claims (11)

1. The dimming glass comprises a first glass plate, a first bonding layer, a dimming layer, a second bonding layer and a second glass plate which are sequentially stacked, wherein one surface of the second glass plate is provided with a functional layer; the light reflectivity of the surface of the second glass plate, which is opposite to the functional layer, to the 380-780nm wavelength range is represented as RL1, the light reflectivity of the surface of the second glass plate, which is provided with the functional layer, to the 380-780nm wavelength range is represented as RL2, and the RL1-RL2 is more than or equal to 5 percent.
2. The light control glass according to claim 1, wherein RL1 is not less than 11% and/or RL2 is not less than 6%.
3. The privacy glass of claim 1, wherein the functional layer is disposed on a surface of the second glass sheet facing away from the second adhesive layer or the functional layer is disposed on a surface of the second glass sheet facing the second adhesive layer.
4. The privacy glass of claim 1, wherein the privacy glass has an L value of 15-25 when the privacy layer is in an energized state;
the a value of the light modulation glass is-5 to 5;
the b value of the dimming glass is-5 to 5.
5. A light control glass as claimed in claim 1, wherein the emissivity E of the light control glass is less than or equal to 0.25.
6. The privacy glass of claim 1, wherein the privacy layer comprises an EC privacy film, and/or an SPD privacy film.
7. The light control glass according to claim 1, wherein the functional layer has a thickness of 150nm to 350nm, and the functional layer has a visible light reflectance of 6% or less, preferably 5% or less, and more preferably 4% or less.
8. The light control glass of claim 1, wherein the functional layer comprises a barrier layer, a low-emissivity layer, a metal absorbing layer, a first high refractive index layer, a low refractive index layer, and a second high refractive index layer, which are sequentially stacked.
9. The privacy glass of claim 8, wherein the material of the barrier layer comprises Si 3 N 4 、SiO 2 、AZO、ZnSnO x One or a combination of two or more of them;
the material of the low-radiation layer comprises one or the combination of more than two of ITO, AZO, FTO and ATO;
the material of the metal absorption layer comprises one or the combination of more than two of NiCr, niFe and Ni;
the first heightThe material of the refractive index layer and/or the second high refractive index layer comprises TaO x 、TiO x 、SiN x 、NbO x One or a combination of two or more of them;
the material of the low refractive index layer comprises SiO 2 And/or SnO 2 。
10. The light control glass of claim 8, wherein the barrier layer has a thickness of 3nm or more;
the thickness of the low-radiation layer is more than or equal to 100nm;
the thickness of the metal absorption layer is less than or equal to 10nm, preferably less than or equal to 5nm;
the thickness of the first high-refractive-index layer and/or the second high-refractive-index layer is less than or equal to 70nm, preferably 10-50nm;
the thickness of the low refractive index layer is 20 to 150nm, preferably 30 to 110nm.
11. A vehicle comprising the privacy glass of any one of claims 1-10.
CN202210962555.9A 2022-08-11 2022-08-11 Light control glass and vehicle Pending CN115519857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210962555.9A CN115519857A (en) 2022-08-11 2022-08-11 Light control glass and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210962555.9A CN115519857A (en) 2022-08-11 2022-08-11 Light control glass and vehicle

Publications (1)

Publication Number Publication Date
CN115519857A true CN115519857A (en) 2022-12-27

Family

ID=84696243

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210962555.9A Pending CN115519857A (en) 2022-08-11 2022-08-11 Light control glass and vehicle

Country Status (1)

Country Link
CN (1) CN115519857A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180043658A1 (en) * 2015-05-11 2018-02-15 Asahi Glass Company, Limited Heat insulating glass unit for vehicle and manufacturing method thereof
US20180257342A1 (en) * 2015-12-25 2018-09-13 Nippon Sheet Glass Company, Limited Laminated glass
WO2020141717A1 (en) * 2018-12-31 2020-07-09 Saint-Gobain Glass France Transparent substrate with a multilayer thin film and multiple glazing unit comprising the same
CN112659679A (en) * 2020-12-15 2021-04-16 福耀玻璃工业集团股份有限公司 Ultraviolet-isolating and blue-light-preventing laminated glass capable of adjusting light or emitting light
CN114057407A (en) * 2021-12-23 2022-02-18 福建省万达汽车玻璃工业有限公司 Coated glass and laminated glass
CN114455856A (en) * 2022-01-28 2022-05-10 福建省万达汽车玻璃工业有限公司 Skylight glass and vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180043658A1 (en) * 2015-05-11 2018-02-15 Asahi Glass Company, Limited Heat insulating glass unit for vehicle and manufacturing method thereof
US20180257342A1 (en) * 2015-12-25 2018-09-13 Nippon Sheet Glass Company, Limited Laminated glass
WO2020141717A1 (en) * 2018-12-31 2020-07-09 Saint-Gobain Glass France Transparent substrate with a multilayer thin film and multiple glazing unit comprising the same
CN112659679A (en) * 2020-12-15 2021-04-16 福耀玻璃工业集团股份有限公司 Ultraviolet-isolating and blue-light-preventing laminated glass capable of adjusting light or emitting light
CN114057407A (en) * 2021-12-23 2022-02-18 福建省万达汽车玻璃工业有限公司 Coated glass and laminated glass
CN114455856A (en) * 2022-01-28 2022-05-10 福建省万达汽车玻璃工业有限公司 Skylight glass and vehicle

Similar Documents

Publication Publication Date Title
JP5792623B2 (en) Multiple glazing unit incorporating at least one antireflective coating and use of the antireflective coating in multiple glazing units
US9895864B2 (en) Laminated glazing
JP6783806B2 (en) Laminated glazing
EP2038233B1 (en) Infrared radiation reflecting insulated glazing unit
US7919158B2 (en) Infrared radiation reflecting insulated glazing unit
RU2656284C2 (en) Substrate provided with a stack having thermal properties
EP3360009B1 (en) Window assembly with infrared reflector
JP7471217B2 (en) Laminated Glazing
CN114057407A (en) Coated glass and laminated glass
EP2583135B1 (en) Laminated glazing with a reduced coloration in reflection
KR20190137833A (en) High Performance Privacy Window Structures
JPH10114007A (en) Glazing with variable optical and/or energetic properties
EP3439873B1 (en) Light emitting diode display and insulated glass unit including the same
JPH03503755A (en) Multilayer color compatible solar control coatings by sputtering
CN103864314A (en) Low-emissivity electrochromic glass
EP4342863A1 (en) Laminated glass, and head-up display system
US20220184929A1 (en) Laminated glazing reflecting infrared
CN108515752A (en) A kind of skylight assembly glass of no sunshade
JP2020516571A (en) Coated glass articles
CN115519857A (en) Light control glass and vehicle
CN115847956A (en) Laminated glass and vehicle
US20210387513A1 (en) Antireflective switchable glass construction
CN113853301B (en) Laminated window assembly
KR20190080285A (en) Optical Structure for Improving Sunscreen Performance and Manufacturing Method thereof
US20230358937A1 (en) Laminated glazing with reduced outside light reflection and head-up display with improved visibility

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination