Laminated glass and vehicle

Abstract

The invention provides laminated glass and a vehicle. The laminated glass comprises a first glass plate, a first bonding layer, an optical element layer, a second bonding layer and a second glass plate which are stacked in sequence; under different voltage values, the optical element layer has different visible light transmittance and different colors. The laminated glass is provided with a balance component, and when a first voltage value is converted to a second voltage value, the laminated glass meets the following conditions: 0 < delta TL-(delta a + delta b) < = 1%, and TL > = 2%. By limiting the optical index of the balance assembly, the delta TL-(delta a + delta b) of the laminated glass meets the preset value, so that the laminated glass achieves the balance of visible light transmittance change and color change in the dimming process, the dimming change abrupt of the laminated glass is avoided, the interference of dimming on the eyes of a user is reduced, and the user experience is improved. The stability and reliability of the laminated glass during dimming are improved, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application belongs to the field of glass technology, and specifically relates to laminated glass and vehicles. Background Art

[0002] As users have higher and higher requirements for vehicle glass, an optical element layer is usually set on laminated glass to obtain glass with dimming function. However, when users observe the dimming process of laminated glass, there may be a situation where the color change is stronger than the visible light transmittance change, resulting in a weaker perception of the visible light transmittance change. There may also be a situation where the instantaneous visible light transmittance change is much stronger than the color change, resulting in glare or visual fatigue, causing abrupt dimming changes in laminated glass, causing discomfort to the user's eyes and reducing the user's experience. Summary of the invention

[0003] In view of this, the first aspect of the present application provides a laminated glass, the laminated glass comprising a first glass plate, a first adhesive layer, an optical element layer, a second adhesive layer, and a second glass plate which are stacked in sequence; the optical element layer has different visible light transmittances and different colors under different voltage values; the laminated glass has a balancing component, the balancing component is composed of the first glass plate and the first adhesive layer, and / or is composed of the second glass plate and the second adhesive layer;

[0004] The balancing component has a visible light transmittance TL, and a transmitted color of visible light has Lab values: a and b; when the first voltage value is changed to the second voltage value, the laminated glass has a visible light transmittance change value ΔTL, color change values ​​Δa and Δb, and the laminated glass satisfies the following conditions: 0<||ΔTL|-(|Δa|+|Δb|)|≤1%, and TL≥2%.

[0005] Wherein, under different voltage values, the laminated glass has a first stage, and the absolute value of the visible light transmittance change rate of the laminated glass in the first stage is ≥10%;

[0006] Wherein, the laminated glass in the first stage meets the following condition: 0.5%<||ΔTL|-(|Δa|+|Δb|)|≤1%.

[0007] Wherein, the laminated glass further has a second stage, and the absolute value of the visible light transmittance change rate of the laminated glass in the second stage is less than 10%;

[0008] Wherein, the laminated glass in the second stage meets the following condition: 0<||ΔTL|-(|Δa|+|Δb|)|≤0.5%.

[0009] Wherein, when the laminated glass is in the first stage, the TL of the laminated glass satisfies the following condition: 2%≤TL≤X%; when the laminated glass is in the second stage, the TL of the laminated glass satisfies the following condition: TL<X%; wherein, 5≤X≤40.

[0010] Wherein, the balancing component has an initial visible light transmittance TL 0 , the transmitted color of visible light has an initial Lab 0 Value: a 0 and b 0 ; The balancing component meets the following conditions: TL 0 ≤85%, -10≤a 0 ≤-2, and -1≤b 0 ≤2.

[0011] Wherein, when the balancing component is composed of the first glass plate and the first adhesive layer, and the second glass plate and the second adhesive layer, the balancing component satisfies the following conditions: TL 0 ≤85%, or ≤50%.

[0012] Wherein, when the balancing component is composed of the first glass plate and the first adhesive layer, or the second glass plate and the second adhesive layer, the balancing component satisfies the following conditions: TL 0 ≤75%, or ≤40%.

[0013] The optical element layer has a haze H, and the optical element layer satisfies the following condition: H≤40%.

[0014] Wherein, the haze H includes bright state haze H 1 and dark haze H 2 , the optical element layer satisfies the following conditions: H 1 ≤5%, H 2 ≤40%.

[0015] A second aspect of the present application provides a vehicle, comprising a vehicle body, and the laminated glass provided in the first aspect of the present application, wherein the laminated glass is arranged at an opening of the vehicle body.

[0016] The present application provides laminated glass and a vehicle. By limiting the optical indicators of the balancing component: visible light transmittance TL and Lab value, ||ΔTL|-(|Δa|+|Δb|)| of the laminated glass meets the preset value, so that the laminated glass can achieve a balance between the change in visible light transmittance and the change in color during the dimming process, avoiding abrupt dimming changes of the laminated glass, making the perception of visible light transmittance changes and color changes during the dimming process more comfortable and soft, reducing the interference of dimming on the user's eyes, improving the stability and reliability of the laminated glass during dimming, being suitable for various application scenarios, and improving the user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the implementation modes of the present application will be described below.

[0018] Figure 1 A schematic diagram of the structure of a laminated glass provided in one embodiment of the present application.

[0019] Figure 2 A schematic cross-sectional view of a laminated glass provided in one embodiment of the present application.

[0020] Figure 3 This is a curve diagram showing the relationship between voltage and visible light transmittance TL in a laminated glass provided in one embodiment of the present application.

[0021] Explanation of reference numerals: laminated glass 1 , first glass plate 10 , first adhesive layer 11 , optical element layer 12 , edge filling layer 13 , second adhesive layer 14 , second glass plate 15 , balancing assembly 16 . DETAILED DESCRIPTION

[0022] The following are preferred implementations of the present application. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

[0023] In view of this, in order to solve the above problems, please refer to Figure 1-Figure 2 The present embodiment provides a laminated glass 1, which includes a first glass plate 10, a first bonding layer 11, an optical element layer 12, a second bonding layer 14, and a second glass plate 15 stacked in sequence; under different voltage values, the optical element layer 12 has different visible light transmittances and different colors; the laminated glass 1 has a balancing component 16, and the balancing component 16 is composed of the first glass plate 10 and the first bonding layer 11, and / or composed of the second glass plate 15 and the second bonding layer 14.

[0024] The balancing component 16 has a visible light transmittance TL, and a transmitted color of visible light has Lab values: a and b; when the first voltage value is changed to the second voltage value, the laminated glass 1 has a visible light transmittance change value ΔTL, color change values ​​Δa and Δb, and the laminated glass 1 satisfies the following conditions: 0<||ΔTL|-(|Δa|+|Δb|)|≤1%, and TL≥2%.

[0025] When the laminated glass 1 is installed on a vehicle, the laminated glass 1 can be used as a front windshield, a rear windshield, a side window glass, a corner window glass, or a sunroof glass, thereby providing more display scene applications for the vehicle.

[0026] Specifically, the first glass plate 10 serves as the outer glass plate of the laminated glass 1, and the first glass plate 10 has a first surface and a second surface, the first surface is away from the optical element layer 12 and is in contact with the outside environment of the vehicle, the first surface is away from the first bonding layer 11, the second surface is connected to the first bonding layer 11, and the second surface is close to the optical element layer 12; the second glass plate 15 serves as the inner glass plate of the laminated glass 1, and the second glass plate 15 has a third surface and a fourth surface, the third surface is connected to the second bonding layer 14, the fourth surface is away from the second bonding layer 14, the third surface is close to the optical element layer 12, the fourth surface is away from the optical element layer 12 and is in contact with the inside environment of the vehicle, the optical element layer 12 is arranged between the first bonding layer 11 and the second bonding layer 14, the first bonding layer 11 bondedly connects the first glass plate 10 and the optical element layer 12, and the second bonding layer 14 bondedly connects the second glass plate 15 and the optical element layer 12.

[0027] The thickness of the first glass plate 10 is 0.7 mm to 4.0 mm, and the initial visible light transmittance of the first glass plate 10 is ≥ 40%, that is, the initial visible light transmittance of the outer glass plate is greater than or equal to 40%, and the outer glass plate is transparent glass or tinted glass. For example, the outer glass plate can be a transparent glass with a thickness of 2.1 mm and an initial visible light transmittance of 80%. The thickness of the outer glass plate is preferably 1.6 mm to 3.5 mm.

[0028] The thickness of the second glass plate 15 is 0.7 mm to 4.0 mm, and the initial visible light transmittance of the second glass plate 15 is ≥ 40%, that is, the initial visible light transmittance of the inner glass plate is greater than or equal to 40%. The inner glass plate is transparent glass or tinted glass. For example, the inner glass plate can be a transparent glass with a thickness of 2.1 mm and an initial visible light transmittance of 60%, or a green glass with a thickness of 1.6 mm and an initial visible light transmittance of 83%, or a green glass with a thickness of 2.1 mm and an initial visible light transmittance of 80%.

[0029] The first adhesive layer 11 and the second adhesive layer 14 can both be transparent thermoplastic polymer films or colored thermoplastic polymer films, and the thickness of the first adhesive layer 11 and the second adhesive layer 14 is 0.38mm to 2.28mm. For example, the thickness of the first adhesive layer 11 and the second adhesive layer 14 can be, but not limited to, 0.38mm, or 0.76mm, or 1.14mm, or 1.52mm, or 1.9mm, or 2.28mm, or other values ​​between 0.38mm and 2.28mm. The material of the thermoplastic polymer film can be selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA) and ionic polymer (SGP). Optionally, the visible light transmittance of the first adhesive layer 11 and the second adhesive layer 14 is ≥40%. When the first adhesive layer 11 and the second adhesive layer 14 are transparent thermoplastic polymers, the initial visible light transmittance of the transparent thermoplastic polymer is greater than or equal to 70%. For example, the initial visible light transmittance of the first adhesive layer 11 and the second adhesive layer 14 can be, but not limited to, 70%, 75%, 80%, 85%, etc. When the first adhesive layer 11 and the second adhesive layer 14 are colored thermoplastic polymer films, the initial visible light transmittance of the colored thermoplastic polymer film is greater than or equal to 40%. For example, the initial visible light transmittance of the first adhesive layer 11 and the second adhesive layer 14 can be, but not limited to, 40%, 45%, 50%, 55%, 60%, 65%, etc. The colored thermoplastic polymer film can be selected from a gray thermoplastic polymer film, a green thermoplastic polymer film, or a blue thermoplastic polymer film. Exemplarily, the first adhesive layer 11 and the second adhesive layer 14 may be a single-layer structure or a multi-layer structure, and the multi-layer structure may be exemplified by a double-layer structure, a three-layer structure, a four-layer structure, a five-layer structure, etc. The first adhesive layer 11 and the second adhesive layer 14 may also have other functions, such as adding an infrared absorber to have a sunscreen or heat insulation function, or adding an ultraviolet absorber to have an ultraviolet shielding function, or at least one layer of the multi-layer structure has a higher plasticizer content to have a sound insulation function.

[0030] The optical element layer 12 can also be understood as a dimming layer, which has a dimming function. The optical element layer 12 can be a polymer dispersed liquid crystal film (PDLC), a suspended particle film (SPD), an electrochromic film (EC), a dye liquid crystal film (LC), etc. Preferably, the optical element layer 12 can be a dye liquid crystal (LC) containing a transparent sealing glue, that is, the optical element layer 12 can be a dye liquid crystal film (LC). The minimum visible light transmittance of the optical element layer 12 is less than or equal to 3%, such as 3%, 2%, 1%, 0.5%, 0%. In addition, the maximum visible light transmittance of the optical element layer 12 is set as needed, such as 10%, 20%, 30%, 50%, 70%, 80%, etc. For example: the visible light transmittance of the optical element layer 12 can be adjusted between 0% and 20%, can also be adjusted between 0.5% and 50%, can also be adjusted between 0% and 70%, etc.

[0031] When the optical element layer 12 is powered on, as the voltage value applied to the optical element layer 12 changes, the optical element layer 12 has different visible light transmittances and different colors to meet the requirements of visible light transmittance and color in multiple scenes. For example, when black border display is required, the optical element layer 12 is in an opaque state (visible light transmittance is less than or equal to 3%, or even 0%) to improve the contrast between the displayed image and the displayed background. When no display is performed, the optical element layer 12 is in a transparent state (visible light transmittance is greater than or equal to 70%) to achieve transparency in a larger area of ​​the laminated glass 1.

[0032] Optionally, the laminated glass 1 further comprises a filler layer 13 disposed on the same layer as the optical element layer 12, and the filler layer 13 is disposed on at least one side of the optical element layer 12. The material of the filler layer 13 can be selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA) and ionic polymer (SGP). The thickness of the filler layer 13 is equal to the thickness of the optical element layer 12.

[0033] The first glass plate 10, the first adhesive layer 11, the second glass plate 15, and the second adhesive layer 14 have fixed initial visible light transmittance and initial color, respectively. Therefore, the balancing element 16 also has a fixed initial visible light transmittance TL 0 , the transmitted color of visible light has an initial Lab 0 Value: a 0 and b 0 Since the optical element layer 12 has different visible light transmittances and different colors at different voltage values, the visible light transmittance and color displayed by the laminated glass 1 provided with the optical element layer 12 also change with the change of the optical element layer 12. At different voltage values, the laminated glass 1 can display different visible light transmittances and different colors.

[0034] When the laminated glass 1 has only one balancing component 16, the balancing component 16 is composed of the first glass plate 10 and the first adhesive layer 11, or is composed of the second glass plate 15 and the second adhesive layer 14. For example, when only the first glass plate 10 and the first adhesive layer 11 constitute the balancing component 16, the second glass plate 15 is transparent glass, and the second adhesive layer 14 is a transparent film. For another example, when only the second glass plate 15 and the second adhesive layer 14 constitute the balancing component 16, the first glass plate 10 is transparent glass, and the first adhesive layer 11 is a transparent film. When the laminated glass 1 has two balancing components 16, one balancing component 16 is composed of the first glass plate 10 and the first adhesive layer 11, and the other balancing component 16 is composed of the second glass plate 15 and the second adhesive layer 14.

[0035] For example, when the voltage value changes from the first voltage value to the second voltage value, |ΔTL| is the TL of the laminated glass 1 at the second voltage value. 2 The value minus the TL of the laminated glass 1 at the first voltage value 1 The absolute value of the difference between the values, that is, TL 2 -TL 1 The absolute value of |Δa| is the a of the laminated glass 1 at the second voltage value. 2 The value is reduced by a of the laminated glass 1 at the first voltage value. 1 The absolute value of the difference between the values, that is, a 2 -a 1 The absolute value of |Δb| is the b value of the laminated glass 1 at the second voltage value. 2 The value is reduced by b of the laminated glass 1 at the first voltage value. 1 The absolute value of the difference between the values, that is, b 2 -b 1 The absolute value of .

[0036] Furthermore, when the first voltage value is changed to the second voltage value, the TL of the laminated glass 1 ≥ 2% can be specifically exemplified as 2%, or 5%, or 10%, or 15%, or 20%, or 25%, or 30%, or 35%, or 40%, or 50%, or 60%, or 70%, or 80%, or 90%, etc. When the TL of the laminated glass 1 is less than 2%, the amount of light passing through the laminated glass 1 is very small, which limits the transmission of color information and has low interference to the user's eyes, so this application is not limited to this situation.

[0037] Specifically, the value of ||ΔTL|-(|Δa|+|Δb|)| can be exemplified as 0, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, etc.

[0038] In summary, the present embodiment provides a laminated glass 1, which limits the optical indicators of the balancing component 16: visible light transmittance TL, Lab value, so that ||ΔTL|-(|Δa|+|Δb|)| of the laminated glass 1 meets the preset value, so that the laminated glass 1 can achieve a balance between the visible light transmittance change and the color change during the dimming process, avoid abrupt dimming changes of the laminated glass 1, make the perception of visible light transmittance change and color change during the dimming process more comfortable and soft, reduce the interference of dimming on the user's eyes, improve the stability and reliability of the laminated glass 1 during dimming, be suitable for various application scenarios, and improve the user's experience.

[0039] The laminated glass 1 has a first stage and a second stage, the first stage is a stage in which TL changes rapidly with voltage, and the second stage is a stage in which TL changes slowly with voltage, wherein the absolute value of the change rate of visible light transmittance of the laminated glass 1 in the first stage is ≥10%, and the absolute value of the change rate of visible light transmittance of the laminated glass 1 in the second stage is <10%.

[0040] For example, when the voltage value changes from the first voltage value to the second voltage value, the absolute value of the visible light transmittance change rate is TL 2 The value minus the TL of the laminated glass 1 at the first voltage value 1 The difference in values ​​accounts for the TL of the laminated glass 1 at the first voltage value. 1 The absolute value of the value, that is, (TL 2 -TL 1 ) / TL 1 The absolute value of .

[0041] The laminated glass 1 in the first stage satisfies the following condition: 0.5%<||ΔTL|-(|Δa|+|Δb|)|≤1%, and the value of ||ΔTL|-(|Δa|+|Δb|)| in the first stage can be specifically exemplified as 0.5%, or 0.55%, or 0.6%, or 0.65%, or 0.7%, or 0.75%, or 0.8%, or 0.85%, or 0.9%, or 0.95%, or 1%, etc.

[0042] The laminated glass 1 in the second stage satisfies the following condition: 0<||ΔTL|-(|Δa|+|Δb|)|≤0.5%, and the value of ||ΔTL|-(|Δa|+|Δb|)| in the second stage can be specifically exemplified as 0, or 0.05%, or 0.1%, or 0.15%, or 0.2%, or 0.25%, or 0.3%, or 0.35%, or 0.4%, or 0.45%, or 0.5%, etc.

[0043] When the laminated glass 1 is in the first stage, the TL of the laminated glass 1 satisfies the following condition: 2%≤TL≤X%; when the laminated glass 1 is in the second stage, the TL of the laminated glass 1 satisfies the following condition: TL<X%; wherein, 5≤X≤40.

[0044] X can also be understood as the intermediate transition TL value between the first stage and the second stage. X can be specifically exemplified as 5, 10, 15, 20, 25, 30, 35, 40, etc.

[0045] In order to cooperate with the different TL change stages of the laminated glass 1, this embodiment distinguishes the preset value of ||ΔTL|-(|Δa|+|Δb|)| for different stages, and the preset value in the first stage is greater than the preset value in the second stage, so as to further provide a larger balance space for the laminated glass 1 that changes rapidly in the first stage, and further limit the laminated glass 1 that changes slowly in the second stage to a smaller balance space, so as to further and more accurately balance the perception of visible light transmittance change and color change during the dimming process, further reduce the interference of dimming on the user's eyes, further improve the stability and reliability of the laminated glass 1 during dimming, and further improve the user's experience.

[0046] The balancing component 16 has an initial visible light transmittance TL 0 ≤85%, specific examples include 85%, or 80%, or 75%, or 70%, or 65%, or 60%, or 55%, or 50%, or 45%, or 40%, or 35%, or 30%, or 25%, or 20%, or 15%, or 10%, etc.

[0047] The balance component 16 has an initial Lab chromaticity for the transmission of visible light. 0 Value: a 0 and b 0 , -10≤a 0 ≤-2, and -1≤b 0 ≤2, a 0 Specific examples include -10, -9, -8, -7, -6, -5, -4, -3, -2, etc.; b 0 Specific examples include -1, -0.5, 0, 0.5, 1, 1.5, 2, and the like.

[0048] In one embodiment, when the balancing component 16 is composed of the first glass plate 10 and the first adhesive layer 11, and the second glass plate 15 and the second adhesive layer 14, the initial visible light transmittance TL of the balancing component 16 is 0 ≤85%; preferably, TL 0 ≤70%; more preferably, TL 0 ≤50%.

[0049] In another embodiment, when the balancing component 16 is composed of only the first glass plate 10 and the first adhesive layer 11, or only the second glass plate 15 and the second adhesive layer 14, the initial visible light transmittance TL of the balancing component 16 is 0 ≤75%; preferably, TL 0 ≤60%; more preferably, TL 0 ≤40%.

[0050] In this embodiment, the initial optical index of the balancing component 16 is defined as follows: the initial visible light transmittance TL 0 、Initial Lab 0 The value is conducive to making the optical index of the laminated glass 1 meet the preset value of ||ΔTL|-(|Δa|+|Δb|)|, which is conducive to achieving a balance between the change in visible light transmittance and the change in color of the laminated glass 1 during the dimming process, avoiding abrupt dimming changes of the laminated glass 1, improving the stability and reliability of the laminated glass 1 during dimming, and improving the user experience.

[0051] The optical element layer 12 has a haze H, H≤40%, H can be specifically exemplified as 40%, or 35%, or 30%, or 25%, or 20%, or 15%, or 10%, or 5%, or 3%, etc. Specifically, the optical element layer 12 has a bright haze H 1 and dark haze H 2 , H 1 ≤5%, H 2 ≤40%, H 1 Specific examples include 5%, 4%, 3%, 2%, 1%, etc.; H 2 Specific examples include 40%, 35%, 30%, 25%, 20%, 15%, 10%, 5%, 3%, etc. The bright state haze is the haze measured when the optical element layer 12 is powered on, and the dark state haze is the haze measured when the optical element layer 12 is not powered on.

[0052] This embodiment limits the haze of the optical element layer 12 and adopts a low haze optical element layer 12 to cooperate with the balancing component 16, which is more conducive to the laminated glass 1 to achieve a balance between the change in visible light transmittance and the change in color during the dimming process, further avoids abrupt dimming changes of the laminated glass 1, further improves the stability and reliability of the laminated glass 1 during dimming, and further improves the user experience.

[0053] The present application also provides a vehicle, comprising a vehicle body, and the laminated glass provided as described above in the present application, wherein the laminated glass is arranged at an opening of the vehicle body.

[0054] The vehicle provided by the present application adopts the laminated glass provided by the present application above, and limits the optical indicators of the balancing component: visible light transmittance TL, Lab value, so that the ||ΔTL|-(|Δa|+|Δb|)| of the laminated glass meets the preset value, so that the laminated glass can achieve a balance between the change in visible light transmittance and the change in color during the dimming process, avoiding abrupt dimming changes of the laminated glass, making the perception of visible light transmittance changes and color changes during the dimming process more comfortable and soft, reducing the interference of dimming on the user's eyes, improving the stability and reliability of the laminated glass during dimming, and being suitable for various application scenarios, thereby improving the user's experience.

[0055] In order to make the purpose and advantages of the present application clearer, the effects of the balancing assembly of the present application are further described in detail below in conjunction with specific embodiments.

[0056] Comparative Example 1:

[0057] The balancing assembly is composed of a first glass plate and a first adhesive layer, and a second glass plate and a second adhesive layer. The initial visible light transmittance TL of the balancing assembly is 0 90%, initial Lab 0 Value: a 0 is -0.44, b 0 The optical element layer uses a rigid liquid crystal dimming film, and the bright haze H of the optical element layer is 0.31. 1 ≤5%, dark haze H 2 ≤40%.

[0058] The voltage is applied in a step frequency of 1V, with 1V as the starting voltage, and TL, a, and b of the laminated glass at 11 points in the range of 2V-12V. The specific performance parameters of the laminated glass are shown in Table 1.

[0059] In this application, TL is the visible light transmittance of 380nm-780nm, the test standard is the test method specified in GB* / T 2410, the test standard for a value and b value is GB / T 7921, transmission mode, D65 light source, 10°.

[0060] Table 1: Performance parameters of laminated glass in Comparative Example 1

[0061]

[0062] As shown in Table 1, when TL≥2%, when the voltage is 2V, 4V, 5V, and 6V, the laminated glass cannot satisfy: 0<||ΔTL|-(|Δa|+|Δb|)|≤1%. Specifically, when the laminated glass is in the first stage, when the voltage is 2V, 4V, 5V, and 6V, the laminated glass cannot satisfy: 0.5%<||ΔTL|-(|Δa|+|Δb|)|≤1%; when the laminated glass is in the second stage, when the voltage is 7V and 8V, the laminated glass cannot satisfy: 0<||ΔTL|-(|Δa|+|Δb|)|≤0.5%, resulting in large changes in visible light transmittance and color of the laminated glass when the voltage changes, which may cause users to feel glare or visual fatigue, causing discomfort to the user's eyes, and reducing the user's usage experience.

[0063] Embodiment 1:

[0064] The balancing assembly is composed of a first glass plate and a first adhesive layer, and a second glass plate and a second adhesive layer. The initial visible light transmittance TL of the balancing assembly is 0 The initial Lab 0 Value: a 0 is -2.48, b 0 The optical element layer uses a rigid liquid crystal dimming film, and the bright haze H of the optical element layer is 0.42. 1 ≤5%, dark haze H 2 ≤40%.

[0065] The voltage is applied in a step frequency of 1 V, with a starting voltage of 2 V. TL, a, and b of the laminated glass at 10 points in the range of 3 V to 12 V are taken. The specific performance parameters of the laminated glass are shown in Table 2.

[0066] Table 2: Performance parameters of laminated glass in Example 1

[0067]

[0068] Please refer to Table 2 and Figure 3 , Figure 3This is a curve diagram showing the relationship between voltage and visible light transmittance TL in laminated glass. When TL≥2%, the laminated glass satisfies: 0<||ΔTL|-(|Δa|+|Δb|)|≤1%. Specifically, when the laminated glass is in the first stage, that is, when the absolute value of the visible light transmittance change rate of the laminated glass is ≥10%, the laminated glass satisfies: 0.5%<||ΔTL|-(|Δa|+|Δb|)|≤1%; when the laminated glass is in the second stage, that is, when the absolute value of the visible light transmittance change rate of the laminated glass is <10%, the laminated glass satisfies: 0<||ΔTL|-(|Δa|+|Δb|)|≤0.5%, so that the laminated glass can achieve a balance between the visible light transmittance change and the color change during the dimming process, avoid abrupt dimming changes of the laminated glass, make the perception of visible light transmittance change and color change during the dimming process more comfortable and soft, reduce the interference of dimming on the user's eyes, improve the stability and reliability of the laminated glass during dimming, be suitable for various application scenarios, and improve the user's experience.

[0069] Unless otherwise specified or there is a contradiction, the terms and phrases used in this application have the following meanings:

[0070] In this application, "first", "second", etc. are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0071] In this application, "one or several" refers to any one, any two or more of the listed items. Among them, "several" refers to any two or more of the listed items.

[0072] In the present application, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0073] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0074] Mentioning "embodiment" and "implementation method" in this application means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrases in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments. In addition, it should also be understood that the features, structures or characteristics described in the various embodiments of the present application can be arbitrarily combined to form another embodiment that does not deviate from the spirit and scope of the technical solution of the present application, provided that there is no contradiction between them.

[0075] The above is part of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A laminated glass, characterized in that: The laminated glass comprises a first glass plate, a first adhesive layer, an optical element layer, a second adhesive layer, and a second glass plate which are stacked in sequence; the optical element layer has different visible light transmittances and different colors under different voltage values; the laminated glass comprises a balancing component, the balancing component is composed of the first glass plate and the first adhesive layer, and / or is composed of the second glass plate and the second adhesive layer; The balancing component has a visible light transmittance TL, and a transmitted color of visible light has Lab values: a and b; when the first voltage value is changed to the second voltage value, the laminated glass has a visible light transmittance change value ΔTL, color change values ​​Δa and Δb, and the laminated glass satisfies the following conditions: 0<||ΔTL|-(|Δa|+|Δb|)|≤1%, and TL≥2%.

2. The laminated glass according to claim 1, characterized in that: Under different voltage values, the laminated glass has a first stage, and the absolute value of the visible light transmittance change rate of the laminated glass in the first stage is ≥10%; Wherein, the laminated glass in the first stage meets the following condition: 0.5%<||ΔTL|-(|Δa|+|Δb|)|≤1%.

3. The laminated glass according to claim 2, characterized in that: The laminated glass also has a second stage, and the absolute value of the visible light transmittance change rate of the laminated glass in the second stage is less than 10%; Wherein, the laminated glass in the second stage meets the following condition: 0<||ΔTL|-(|Δa|+|Δb|)|≤0.5%.

4. The laminated glass according to claim 3, characterized in that: When the laminated glass is in the first stage, the TL of the laminated glass satisfies the following condition: 2%≤TL≤X%; when the laminated glass is in the second stage, the TL of the laminated glass satisfies the following condition: TL<X%; wherein, 5≤X≤40.

5. The laminated glass according to claim 1, characterized in that: The balancing component has an initial visible light transmittance TL0, and a transmission color of visible light has initial Lab0 values: a0 and b0; the balancing component satisfies the following conditions: TL0≤85%, -10≤a0≤-2, and -1≤b0≤2.

6. The laminated glass according to claim 5, characterized in that: When the balancing assembly is composed of the first glass plate and the first adhesive layer, and the second glass plate and the second adhesive layer, the balancing assembly satisfies the following condition: TL0≤85%, or ≤50%.

7. The laminated glass according to claim 5, characterized in that: When the balancing component is composed of the first glass plate and the first adhesive layer, or the second glass plate and the second adhesive layer, the balancing component satisfies the following condition: TL0≤75%, or ≤40%.

8. The laminated glass according to claim 1, wherein: The optical element layer has a haze H, and the optical element layer satisfies the following condition: H≤40%.

9. The laminated glass according to claim 8, characterized in that: The haze H includes a bright state haze H1 and a dark state haze H2, and the optical element layer satisfies the following conditions: H1≤5%, H2≤40%.

10. A vehicle, characterized in that: The vehicle comprises a vehicle body, and the laminated glass according to any one of claims 1 to 9, wherein the laminated glass is arranged at an opening of the vehicle body.

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