Dimming glass, display system and carrying tool

Abstract

The invention relates to dimming glass, a display system and a carrying tool. The dimming glass comprises a first glass layer, an ultraviolet isolation layer, a color changing layer and a second glass layer which are sequentially arranged in a stacked mode, a heating assembly is arranged between the first glass layer and the second glass layer, and the color changing layer is composed of a photochromic material and a thermochromic material. The transmittance of the excited region of the color changing layer is reduced along with the increase of the temperature in a preset temperature range. According to the dimming glass, the color changing layer composed of the photochromic material and the thermochromic material is arranged in the dimming glass, so that the transmittance of the color changing layer of the dimming glass is reduced along with the increase of the temperature within the preset temperature range, the color changing layer still keeps a good color changing effect, and the influence of the temperature on the color changing effect is reduced. Meanwhile, by arranging the ultraviolet isolation layer, ultraviolet light transmitted from the first glass layer is isolated, and the influence of external ultraviolet light on the color changing layer is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of glass manufacturing, and in particular to a dimming glass, a display system and a vehicle. Background Art

[0002] With the development of glass manufacturing technology, photochromic glass has emerged. Photochromic glass changes its color when exposed to a specific wavelength and can return to its original color after the light source is removed. Photochromic glass can be used in the fields of architecture and automobiles to automatically adjust transparency according to light intensity. However, the transmittance of photochromic glass in traditional technology will increase with the increase of temperature, affecting the photochromic color change effect. Summary of the invention

[0003] Based on this, it is necessary to provide a dimming glass, display system and vehicle that can reduce the influence of temperature on the color-changing effect in response to the above-mentioned technical problems.

[0004] In a first aspect, the present application proposes a dimming glass, comprising: a first glass layer, an ultraviolet isolation layer, a color-changing layer and a second glass layer stacked in sequence, a heating component is arranged between the first glass layer and the second glass layer, the color-changing layer is composed of a photochromic material and a thermochromic material, and the transmittance of an excited area of ​​the color-changing layer decreases with increasing temperature within a preset temperature range.

[0005] In one embodiment, within the preset temperature range, the color-changing layer satisfies: |ΔTL1|>|ΔTL2|, ΔTL1=(TL2-TL1) / (T2-T1), ΔTL2=(TL4-TL3) / (T4-T3); wherein TL1 is the transmittance of the non-excited area of ​​the color-changing layer at a temperature of T1, TL2 is the transmittance of the non-excited area of ​​the color-changing layer at a temperature of T2, TL3 is the transmittance of the excited area of ​​the color-changing layer at a temperature of T3, and TL4 is the transmittance of the excited area of ​​the color-changing layer at a temperature of T4.

[0006] In one of the embodiments, within the preset temperature range, the ratio of the transmittance of the non-excited area to the transmittance of the excited area in the color-changing layer is within a preset threshold range, wherein the preset threshold range is 4 to 20.

[0007] In one embodiment, the heating component includes: a heating coating, and the heating coating is arranged between the color-changing layer and the second glass layer.

[0008] In one embodiment, the heating component includes: a heating wire, and the heating wire is arranged in at least one structural layer of the first glass layer, the ultraviolet isolation layer, the color-changing layer, and the second glass layer.

[0009] In one embodiment, the UV isolation layer includes: an adhesive layer, wherein the adhesive layer is doped with a UV absorber.

[0010] In one embodiment, the UV isolation layer includes: an adhesive layer and a UV isolation layer, and the adhesive layer is disposed between the first glass layer and the UV isolation layer.

[0011] In one embodiment, the area of ​​the UV isolation layer is smaller than the area of ​​the adhesive layer, and the adhesive layer covers the edge of the UV isolation layer.

[0012] In a second aspect, the present application further proposes a display system, comprising: the dimming glass and a laser projection module described in the embodiment of the first aspect, wherein the laser projection module is used to perform laser projection onto the dimming glass.

[0013] In a third aspect, the present application further proposes a vehicle, comprising: the display system described in the above-mentioned second aspect embodiment.

[0014] The above-mentioned dimming glass, display system and vehicle, by providing a color-changing layer composed of photochromic material and thermochromic material in the dimming glass, the transmittance of the color-changing layer of the dimming glass decreases with the increase of temperature within a preset temperature range, so that the color-changing layer still maintains a good color-changing effect, reducing the influence of temperature on the color-changing effect. At the same time, by providing an ultraviolet isolation layer, the ultraviolet light transmitted from the first glass layer is isolated, reducing the influence of external ultraviolet light on the color-changing layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic diagram of the structure of a dimming glass in an embodiment;

[0017] Figure 2 A schematic diagram of the structure of a heating coating in one embodiment;

[0018] Figure 3 A schematic diagram of the structure of a heating wire in an embodiment;

[0019] Figure 4 is a schematic diagram of the structure of a bonding layer in one embodiment;

[0020] Figure 5Schematic diagram of the structure of an ultraviolet barrier in one embodiment;

[0021] Figure 6 A schematic diagram of the structure of a dimming glass in another embodiment;

[0022] Figure 7 It is a structural schematic diagram of dimming glass in another embodiment;

[0023] Figure 8 FIG. 1 is a schematic diagram showing modules of a system in one embodiment.

[0024] Description of reference numerals:

[0025] The first glass layer 110 , the ultraviolet isolation layer 120 , the color-changing layer 130 , the second glass layer 140 , the heating coating 150 , the heating wire 160 , the bonding layer 121 , the ultraviolet isolation layer 122 , the dimming glass 100 , and the laser projection module 200 . DETAILED DESCRIPTION

[0026] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0028] It can be understood that the terms "first", "second", etc. used in the present application can be used in this article to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element.

[0029] Spatial relationship terms such as "under", "below", "below", "under", "above", "above", etc., may be used herein to describe the relationship between an element or feature shown in the figures and other elements or features. It should be understood that in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is turned over, the element or feature described as "under other elements" or "under it" or "under it" will be oriented as "on" other elements or features. Therefore, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0030] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. In addition, the "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if there is transmission of electrical signals or data between the connected objects.

[0031] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0032] In one embodiment, Figure 1 As shown, a dimming glass is provided, comprising: a first glass layer 110, an ultraviolet isolation layer 120, a color-changing layer 130 and a second glass layer 140 which are stacked in sequence, a heating component is arranged between the first glass layer 110 and the second glass layer 140, the color-changing layer 130 is composed of a photochromic material and a thermochromic material, and the transmittance of an excited area of ​​the color-changing layer 130 decreases with increasing temperature within a preset temperature range.

[0033] Specifically, the first glass layer 110 is the outer layer of the dimming glass, which is used to protect the internal structure of the dimming glass and provide basic light transmittance. The second glass layer 140 is the inner layer of the dimming glass, which together with the first glass layer 110 constitutes the main structure of the dimming glass. The first glass layer 110 and the second glass layer 140 are both made of glass materials with high transparency and strong weather resistance to ensure the overall light transmittance and durability of the dimming glass. The ultraviolet isolation layer 120 is arranged between the first glass layer 110 and the color-changing layer 130. The ultraviolet isolation layer 120 is used to block ultraviolet penetration. When ultraviolet rays enter from the first glass layer 110, the ultraviolet isolation layer 120 will block the ultraviolet rays to prevent ultraviolet rays from entering the color-changing layer 130, affecting the color-changing effect of the color-changing layer 130, and can delay the aging of the material and increase the service life of the dimming glass. In some embodiments, the ultraviolet isolation layer 120 can be configured to isolate ultraviolet rays with a wavelength of 200nm to 400nm. It is understandable that the ultraviolet isolation layer 120 also plays the role of bonding the first glass layer 110 and the color-changing layer 130 . According to different structures of the ultraviolet isolation layer 120 , the ultraviolet isolation layer 120 also has different settings.

[0034] The color-changing layer 130 is the core layer of the dimming glass, which is a mixture of photochromic materials and thermochromic materials. Photochromic materials can change color under the irradiation of light of the corresponding wavelength band. Generally, the higher the energy of the light, the darker the color after the color change, and the lower the transmittance of the color-changing layer 130. Moreover, the change is reversible. When the irradiation light source is removed, the color-changing layer 130 will gradually return to its original color state. Thermochromic materials can change color with the change of temperature, and this change is also reversible. Thermochromic materials can have different color-changing properties according to their specific material types. The color change can be nonlinear, or the color will suddenly change at a certain temperature. In the color-changing layer 130 composed of photochromic materials and thermochromic materials in the present application, the transmittance of the excited area of ​​the color-changing layer 130 decreases with the increase of temperature within a preset temperature range. Correspondingly, when the color-changing layer 130 is not excited by light, the transmittance of the unexcited area also decreases with the increase of temperature within a preset temperature range. When the temperature of the color-changing layer 130 exceeds the maximum value of the preset temperature range, the thermochromic material in the color-changing layer 130 becomes dominant, and the photochromic material becomes ineffective due to the high temperature. At this time, the excited area will restore the normal base color. By arranging a heating component between the first glass layer 110 and the second glass layer 140, the temperature of the color-changing layer 130 can be actively regulated by the heating component, thereby completing the color control of the excited area.

[0035] When the dimming glass of the present application is in use, the light of the corresponding wavelength band can be emitted to the color-changing layer 130 through the second glass layer 140, so as to complete the color control of the entire dimming glass or display local information on the dimming glass. When the color of the dimming glass needs to be restored, the dimming glass is heated by controlling the heating component so that the temperature of the color-changing layer 130 exceeds the maximum value of the preset temperature range, so that the excited area in the dimming glass is restored to the normal base color. Since the transmittance of the excited area of ​​the color-changing layer 130 of the dimming glass of the present application decreases with the increase of temperature within the preset temperature range, even if the dimming glass is in a high temperature state under exposure, the color-changing layer 130 is excited by the light of the corresponding wavelength band, and the color-changing layer 130 can still maintain a good color-changing effect, reducing the influence of the external temperature on the color-changing effect. At the same time, by setting the ultraviolet isolation layer 120, the ultraviolet light transmitted from the first glass layer 110 is isolated, and the influence of external ultraviolet light on the color-changing layer 130 is reduced.

[0036] In a specific embodiment, as shown in the following table, the transmittance of the conventional photochromic layer and the color-changing layer of the present application under the same irradiation intensity within a preset temperature range (25°C to 55°C) is shown. The thickness of the conventional photochromic layer and the color-changing layer of the present application is set to 0.76mm, and the conventional photochromic layer and the color-changing layer of the present application are both set between two ordinary glasses with a thickness of 2.1mm, and the irradiation intensity is set to 25W / m 2 .

[0037]

[0038] It can be seen from the above table that when the irradiation intensity remains unchanged and the temperature is between 25°C and 55°C, the transmittance of the conventional photochromic layer increases with the increase of temperature, while the transmittance of the color-changing layer 130 of the present application decreases with the increase of temperature. When the temperature of the color-changing layer 130 of the present embodiment is greater than 60°C, the photochromic material in the color-changing layer 130 fails due to the high temperature, and the excited area will restore the conventional base color.

[0039] In one embodiment, within a preset temperature range, the color-changing layer 130 satisfies: |ΔTL1|>|ΔTL2|, that is, per unit temperature, the absolute value of the transmittance change |ΔTL1| in the non-excited area of ​​the color-changing layer 130 is greater than the absolute value of the transmittance change |ΔTL2| in the excited area.

[0040] Specifically, when the color-changing layer 130 in this embodiment is excited, it will be affected by both photochromism and thermochromism. The change in transmittance ΔTL1 when the temperature of the non-excited area of ​​the color-changing layer 130 that is not excited (no light irradiation) changes from T1 to T2 is calculated by the following formula:

[0041] ΔTL1=(TL2-TL1) / (T2-T1)

[0042] TL1 is the transmittance of the non-excited region of the color-changing layer 130 when the temperature is T1, and TL2 is the transmittance of the non-excited region of the color-changing layer 130 when the temperature is T2.

[0043] The change in transmittance ΔTL2 when the temperature of the excited region of the color-changing layer 130 that is excited (irradiated with light) changes from T3 to T4 is calculated by the following formula:

[0044] ΔTL2=(TL4-TL3) / (T4-T3)

[0045] TL3 is the transmittance of the excited region of the color-changing layer 130 when the temperature is T3, and TL4 is the transmittance of the excited region of the color-changing layer 130 when the temperature is T4.

[0046] Through the above calculation, it can be obtained that the absolute value of the transmittance change |ΔTL1| in the non-excited area per unit temperature is greater than the absolute value of the transmittance change |ΔTL2| in the excited area.

[0047] As shown in the following table, in one embodiment, within a preset temperature range, the transmittance of the non-excited area and the transmittance of the excited area of ​​the dimming glass varies with temperature:

[0048]

[0049] It can be seen from the table that when the dimming glass of the present application is excited, as the temperature rises, the transmittance of the excited area decreases slightly. When the dimming glass is used for information display, the color of the displayed information changes little, and the user experience is good. In some other embodiments, within the preset temperature range, the absolute value of the transmittance change of the non-excited area in the color-changing layer 130 per unit temperature can also be less than or equal to the absolute value of the transmittance change of the excited area, and there is also a color difference between the non-excited area and the excited area, and information display can also be completed.

[0050] In one embodiment, within a preset temperature range, the ratio of the transmittance of the non-excited area to the transmittance of the excited area in the color-changing layer 130 is within a preset threshold range, wherein the preset threshold range is 4 to 20. Specifically, in order to make the information displayed by the dimming glass clear and recognizable during the information display process, the ratio of the transmittance of the non-excited area to the transmittance of the excited area in the color-changing layer 130 of the dimming glass in this embodiment needs to be within the preset threshold range. It can be understood that the larger the ratio of the transmittance of the non-excited area to the transmittance of the excited area, the clearer the information is displayed. In some embodiments, the ratio of the transmittance of the non-excited area to the transmittance of the excited area is 5.

[0051] In one embodiment, Figure 2 As shown, the heating component includes: a heating coating 150, and the heating coating 150 is arranged between the color-changing layer 130 and the second glass layer 140. Specifically, in this embodiment, the dimming glass is heated by the heating coating 150. The heating coating 150 is arranged between the color-changing layer 130 and the second glass layer 140, and the heating coating 150 is directly in contact with the color-changing layer 130 to directly control the temperature of the color-changing layer 130. The heating coating 150 can be a metal layer directly plated on the second glass layer 140. By energizing the metal layer, the metal layer can be controlled to generate heat, thereby completing the heating of the dimming glass. In some embodiments, the thickness of the heating coating 150 is 20 to 80 nm, and the thickness of the color-changing layer 130 is 0.1 to 1.0 mm. In some other embodiments, the heating coating 150 may also be disposed between the first glass layer 110 and the UV isolation layer 120 , and / or between the UV isolation layer 120 and the color-changing layer 130 , and may also serve to heat the color-changing layer 130 .

[0052] In one embodiment, Figure 3 As shown, the heating assembly includes: a heating wire 160, which is arranged in at least one structural layer of the first glass layer 110, the ultraviolet isolation layer 120, the color-changing layer 130, and the second glass layer 140. Specifically, in this embodiment, the dimming glass is heated by the heating wire 160. The heating wire 160 can be embedded in at least one structural layer of the first glass layer 110, the ultraviolet isolation layer 120, the color-changing layer 130, and the second glass layer 140. By energizing the heating wire 160, the dimming glass can be heated. Figure 3 Schematic diagram of a heating wire 160 disposed in the second glass layer 140. The heating wire 160 may be a metal wire such as a tungsten wire or a copper wire. In some embodiments, the diameter of the heating wire 160 is 0.018 mm to 0.033 mm, and the thickness of the color-changing layer 130 is 0.1 to 1.0 mm. In some other embodiments, the heating component may also be provided with a heating coating 150 and a heating wire 160 at the same time to heat the dimming glass.

[0053] In one embodiment, Figure 4As shown, the ultraviolet isolation layer 120 includes: an adhesive layer 121, and an ultraviolet absorber is doped in the adhesive layer 121. Specifically, in this embodiment, the ultraviolet isolation layer 120 has the function of bonding the first glass layer 110 and the color-changing layer 130, and the ultraviolet isolation layer 120 is made of the adhesive layer 121 doped with an ultraviolet absorber. The adhesive layer 121 includes at least one of polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), polyurethane (PU), and ionic interlayer (SGP). The ultraviolet absorber is a chemical substance that can absorb ultraviolet rays. When ultraviolet rays are irradiated on the adhesive layer 121 containing the ultraviolet absorber, the ultraviolet absorber absorbs these ultraviolet rays and converts them into harmless heat energy or other forms of energy, thereby preventing external ultraviolet rays from entering the color-changing layer 130. The ultraviolet absorber can be benzophenone, benzotriazole, salicylate, etc. These different types of ultraviolet absorbers have different absorption wavelength ranges and absorption intensities, which can be selected according to specific application requirements.

[0054] In one embodiment, Figure 5 As shown, the ultraviolet isolation layer 120 includes: an adhesive layer 121 and an ultraviolet isolation layer 122, and the adhesive layer 121 is arranged between the first glass layer 110 and the ultraviolet isolation layer 122. Specifically, the ultraviolet isolation layer 120 in this embodiment is composed of an adhesive layer 121 and an ultraviolet isolation layer 122, and the adhesive layer 121 is not mixed with an ultraviolet absorber, and it only serves to bond the first glass layer 110 and the ultraviolet isolation layer 122. The adhesive layer 121 includes at least one of polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), polyurethane (PU), and ionic intermediate film (SGP). The ultraviolet isolation layer 122 can effectively block or absorb ultraviolet rays, and the ultraviolet isolation layer 122 can be a special glass, plastic film or coating, which has a high absorption or reflection ability of ultraviolet rays. In some embodiments, the ultraviolet isolation layer 122 is a PET (polyethylene terephthalate) material coated with a high ultraviolet isolation coating or film layer.

[0055] In one embodiment, Figure 6 As shown, the area of ​​the ultraviolet barrier layer 122 is smaller than the area of ​​the bonding layer 121, and the bonding layer 121 covers the edge of the ultraviolet barrier layer 122. Specifically, the area of ​​the ultraviolet barrier layer 122 in this embodiment is smaller than the area of ​​the bonding layer 121, so the bonding layer 121 can cover the other parts of the ultraviolet barrier layer 122 except the part in contact with the color-changing layer 130, thereby completing the full coverage of the edge of the ultraviolet barrier layer 122, and improving the fastening degree between the first glass and the color-changing layer 130 at the edge of the dimming glass.

[0056] In one embodiment, Figure 7As shown, the dimming glass includes: a first glass layer 110, an adhesive layer 121, an ultraviolet barrier layer 122, a color-changing layer 130, a heating coating layer 150 and a second glass layer 140 which are stacked in sequence. The area of ​​the ultraviolet barrier layer 122 is smaller than the area of ​​the adhesive layer 121, and the adhesive layer 121 covers the edge of the ultraviolet barrier layer 122. The dimming glass of this embodiment is not affected by the shape and curvature of the glass when displaying color, and the radius of curvature can be 5mm to 100mm. The adhesive layer 121 includes at least one of polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), polyurethane (PU), and ionic intermediate film (SGP).

[0057] In one embodiment, Figure 8 As shown, the present application further proposes a display system, comprising: the dimming glass 100 and a laser projection module 200 in the above embodiment, wherein the laser projection module 200 is used to perform laser projection onto the dimming glass 100 .

[0058] Specifically, the laser projection module 200 can emit a laser of a corresponding frequency band according to a pre-written program or according to an actual use scenario. After the laser is projected onto the dimming glass 100, it is shot into the color-changing layer 130 through the second glass layer 140. The excited area of ​​the color-changing layer 130 begins to change color under the excitation of the laser, thereby reducing the transmittance of the excited area. Since the transmittance of the unexcited area of ​​the color-changing layer 130 has not changed, the excited area will form a color difference with the unexcited area, thereby displaying the corresponding graphics. Since the transmittance of the excited area of ​​the color-changing layer 130 of the embodiment of the present application is gradually reduced within the preset temperature range, even if the dimming glass 100 is in a high temperature state after exposure, it still has a good display effect after laser projection. When the display system does not need to display, the laser projection can be stopped. When the display system needs to adjust the transmittance of the entire dimming glass 100, the color-changing layer 130 can be heated by the heating component in the dimming glass 100, thereby adjusting the transmittance of the dimming glass 100 as a whole.

[0059] In some embodiments, the wavelength of the laser output by the laser projection module 200 is in the range of 250 to 400 nm, with a peak value of 392 nm. The spot diameter of the laser emitted by the laser projection module 200 is less than 3 mm, and the irradiation intensity of the laser is 15 W / m 2 Up to 75W / m 2 .

[0060] In one embodiment, the present application also proposes a vehicle, which includes the display system in the above embodiment. The vehicle may include road vehicles, water vehicles, air vehicles, industrial equipment, agricultural equipment, or entertainment equipment, etc. For example, the vehicle may be a vehicle, which is a vehicle in a broad sense, and may be a vehicle (such as a commercial vehicle, a passenger car, a motorcycle, a flying car, a train, etc.), an industrial vehicle (such as a forklift, a trailer, a tractor, etc.), an engineering vehicle (such as an excavator, a bulldozer, a crane, etc.), agricultural equipment (such as a mower, a harvester, etc.), amusement equipment, a toy vehicle, etc. The embodiment of the present application does not specifically limit the type of vehicle. For another example, the vehicle may be a vehicle such as an airplane or a ship. When the vehicle is a vehicle, the dimming glass 100 may be a skylight glass, a front windshield, a rear windshield, or a side window glass of the vehicle.

[0061] When the dimming glass 100 is set on the vehicle as a window glass, the laser projection module 200 can be connected to the vehicle system for communication. The laser projection module 200 emits the corresponding ultraviolet laser under the control of the vehicle system to perform laser projection on the dimming glass 100, thereby displaying information. In traditional window display solutions, LED lights or display modules are often used, but for glass with high curvature, peculiar shape or high technical difficulty, it has a high difficulty in assembly, and the high curvature of the glass will affect its imaging quality. When used in car light display, the car light has a small outer area and a single function, which is basically carried out in simple forms such as flashing lights and brightness adjustment, which is not conducive to the transmission of complex information. When the dimming glass 100 of the present application is used as a display film, it can adapt to the glass shape with high curvature and peculiar shape, and while performing projection display, it can maintain the original lighting and viewing functions of the windows in the unexcited area, and the cost is lower than that of conventional window display films.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0063] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A dimming glass, characterized in that: include: A first glass layer, an ultraviolet isolation layer, a color-changing layer and a second glass layer are stacked in sequence, a heating component is arranged between the first glass layer and the second glass layer, the color-changing layer is composed of a photochromic material and a thermochromic material, and the transmittance of an excited area of ​​the color-changing layer decreases with increasing temperature within a preset temperature range.

2. The dimming glass according to claim 1, characterized in that: Within the preset temperature range, the color-changing layer satisfies: |ΔTL1|>|ΔTL2|, ΔTL1=(TL2-TL1) / (T2-T1), ΔTL2=(TL4-TL3) / (T4-T3); wherein TL1 is the transmittance of the non-excited area of ​​the color-changing layer at a temperature of T1, TL2 is the transmittance of the non-excited area of ​​the color-changing layer at a temperature of T2, TL3 is the transmittance of the excited area of ​​the color-changing layer at a temperature of T3, and TL4 is the transmittance of the excited area of ​​the color-changing layer at a temperature of T4.

3. The switchable glass according to claim 1, characterized in that: In the preset temperature range, the ratio of the transmittance of the non-excited area to the transmittance of the excited area in the color-changing layer is within a preset threshold range, wherein the preset threshold range is 4 to 20.

4. The switchable glass according to claim 1, characterized in that: The heating component comprises: a heating coating, and the heating coating is arranged between the color-changing layer and the second glass layer.

5. The switchable glass according to claim 1, characterized in that: The heating assembly includes a heating wire, and the heating wire is arranged in at least one structural layer of the first glass layer, the ultraviolet isolation layer, the color-changing layer, and the second glass layer.

6. The switchable glass according to claim 1, characterized in that: The ultraviolet isolation layer comprises: an adhesive layer, in which an ultraviolet absorber is mixed.

7. The switchable glass according to claim 1, characterized in that: The ultraviolet isolation layer includes: an adhesive layer and an ultraviolet isolation layer, and the adhesive layer is arranged between the first glass layer and the ultraviolet isolation layer.

8. The switchable glass according to claim 7, characterized in that: The area of ​​the ultraviolet isolation layer is smaller than that of the bonding layer, and the bonding layer covers the edge of the ultraviolet isolation layer.

9. A display system, characterized in that: include: The dimming glass and laser projection module according to any one of claims 1 to 8, wherein the laser projection module is used to perform laser projection onto the dimming glass.

10. A vehicle, characterized in that: include: The display system of claim 9.

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