Photochromic glass and vehicle

Abstract

The invention relates to photochromic glass and a vehicle. The photochromic glass comprises two glass substrates and a photochromic assembly clamped between the two glass substrates, the photochromic assembly comprises a photochromic layer, a diffusion ring, a first conductive layer and a second conductive layer, the diffusion ring and the photochromic layer are arranged on the first conductive layer, and the second conductive layer is located on the side, away from the first conductive layer, of the photochromic layer. The diffusion ring is insulated from the color-changing layer and the second conductive layer respectively; the diffusion ring and the second conductive layer are respectively communicated with an external circuit so as to form a voltage difference between the first conductive layer and the second conductive layer to change the color of the color changing layer, the diffusion ring surrounds the periphery of the color changing layer, and the conductive sheet resistance of the material of the diffusion ring is smaller than that of the material of the first conductive layer. According to the photochromic glass, the diffusion time of the current in the first conductive layer is shortened through the diffusion ring, so that the current of an external circuit can be diffused to the photochromic layer more quickly, and the response speed of the photochromic glass is increased.

Description

Technical Field

[0001] The present application relates to the field of photochromic glass, and in particular to a photochromic glass, and a vehicle comprising the photochromic glass. Background Art

[0002] In the prior art, photochromic glass usually has a photochromic layer and two conductive layers sandwiched between two glass substrates, and the two conductive layers are arranged on opposite sides of the photochromic layer. The current of the external circuit can be introduced into the photochromic layer through the two conductive layers, causing the photochromic layer to change color.

[0003] However, due to the difference between the cross-sectional area of ​​the connection between the external circuit and the conductive layer and the cross-sectional area of ​​the conductive layer, the current flowing into the conductive layer will gradually diffuse into the entire conductive layer, resulting in a slow response speed of the color-changing layer in the existing color-changing glass. Summary of the invention

[0004] In view of the above-mentioned deficiencies of the prior art, the purpose of the present application is to provide a photochromic glass with improved response speed, and a vehicle including the photochromic glass. Specifically, the technical solutions include the following:

[0005] In a first aspect, an embodiment of the present application provides a color-changing glass, comprising two glass substrates, and a color-changing component sandwiched between the two glass substrates, wherein the color-changing component comprises a color-changing layer, a diffusion ring, a first conductive layer, and a second conductive layer, wherein the diffusion ring and the color-changing layer are provided on the first conductive layer, the second conductive layer is located on a side of the color-changing layer away from the first conductive layer, and the diffusion ring is insulated from the color-changing layer and the second conductive layer;

[0006] The diffusion ring and the second conductive layer are respectively connected to the external circuit to form a voltage difference between the first conductive layer and the second conductive layer to change the color of the color-changing layer. The diffusion ring is arranged around the periphery of the color-changing layer, and the conductive square resistance of the material of the diffusion ring is less than the conductive square resistance of the material of the first conductive layer. The color-changing glass of the present application is provided by arranging the first conductive layer and the second conductive layer on two opposite layers of the color-changing layer, and arranging the diffusion ring on the first conductive layer, and making the diffusion ring and the second conductive layer respectively connected to the external circuit, so that the current of the external circuit can enter the first conductive layer through the diffusion ring, and act on the color-changing layer to change the color of the color-changing layer, and then flow to the second conductive layer to return to the external circuit, thereby forming a closed loop, thereby ensuring the color-changing function of the color-changing glass of the present application.

[0007] The color-changing glass of the present application also arranges a diffusion ring around the periphery of the color-changing layer, so that the current of the external circuit can first diffuse through the diffusion ring before flowing into the first conductive layer, and diffuse from the edge of the first conductive layer to the center of the first conductive layer. Because the conductive square resistance of the material of the diffusion ring is smaller, the current can be diffused around the color-changing layer faster than the first conductive layer, so that the current can diffuse to the color-changing layer faster to change the color of the color-changing layer, thereby improving the response speed of the color-changing glass of the present application.

[0008] In one embodiment, the conductive sheet resistance of the material of the diffusion ring is between 5 mΩ / □ and 30 mΩ / □; and / or the conductive sheet resistance of the material of the first conductive layer is between 5 Ω / □ and 100 Ω / □.

[0009] In one embodiment, the diffusion ring is made of one of metallic silver, copper, silver paste, optical glue and conductive ink; and / or,

[0010] The first conductive layer is made of one of indium tin oxide, tin oxide, antimony-doped tin oxide, fluorine-doped tin oxide, antimony-doped zinc oxide and aluminum-doped zinc oxide.

[0011] In one embodiment, the color-changing component also includes a first protective layer, which is conductive and located between the first conductive layer and the color-changing layer, and the first protective layer is used to prevent the first conductive layer from being corroded; and / or, the color-changing component also includes a second protective layer, which is conductive and located between the second conductive layer and the color-changing layer, and the second protective layer is used to prevent the second conductive layer from being corroded.

[0012] In one embodiment, the first protective layer and / or the second protective layer is made of at least one of titanium, silver, aluminum, platinum, iridium, rhodium, ruthenium and copper.

[0013] In one embodiment, the thickness of the first protective layer is less than the thickness of the first conductive layer, and the thickness of the first protective layer is between 5 nm and 50 nm; and / or,

[0014] The thickness of the second protection layer is smaller than that of the second conductive layer, and the thickness of the second protection layer is between 5nm and 50nm.

[0015] In one embodiment, the color-changing component also includes a second diffusion ring, which is arranged on the second conductive layer and surrounds the color-changing layer. The second diffusion ring is insulated from the color-changing layer and the diffusion ring respectively, and the second conductive layer is connected to the external circuit through the second diffusion ring.

[0016] In one embodiment, the second diffusion ring and the diffusion ring are made of the same material; and / or the second conductive layer and the first conductive layer are made of the same material.

[0017] In one embodiment, the color-changing component further includes an insulating layer, and the insulating layer is located between the diffusion ring and the second diffusion ring, and the insulating layer is used to achieve insulation between the diffusion ring and the second diffusion ring.

[0018] In one embodiment, the insulating layer extends toward the first conductive layer and fills between the diffusion ring and the color-changing layer; and / or the insulating layer extends toward the second conductive layer and fills between the second diffusion ring and the color-changing layer.

[0019] In a second aspect, an embodiment of the present application provides a vehicle, including a vehicle body and photochromic glass, wherein the photochromic glass is embedded in the vehicle body.

[0020] It can be understood that since the vehicle provided in the second aspect of the present application adopts the photochromic glass provided in the first aspect of the present application, it also has the beneficial effect of improving the response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the color-changing glass provided in one embodiment of the present application;

[0022] Figure 2 A schematic top view of a cross-sectional view of a color-changing glass provided in one embodiment of the present application;

[0023] Figure 3 Another schematic diagram of the structure of the color-changing glass provided in one embodiment of the present application;

[0024] Figure 4 This is another structural schematic diagram of the color-changing glass provided in one embodiment of the present application;

[0025] Figure 5 A schematic diagram of the cross-sectional structure of the color-changing glass provided in one embodiment of the present application;

[0026] Figure 6 Another schematic cross-sectional structure diagram of the color-changing glass provided in one embodiment of the present application;

[0027] Figure 7 This is another schematic cross-sectional structure diagram of the photochromic glass provided in one embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given 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 thoroughly and comprehensively understood.

[0029] The following descriptions of the embodiments are with reference to the attached diagrams to illustrate specific embodiments that the present application can be used to implement. The serial numbers for the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, include direct and indirect connections (couplings). The directional terms mentioned in the present application, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0030] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including", "may include", "include", or "may include" used in this application indicate the existence of the corresponding functions, operations, elements, etc. disclosed, and do not limit one or more other functions, operations, elements, etc. In addition, the terms "including" or "include" indicate the existence of the corresponding features, numbers, steps, operations, elements, components, or combinations thereof disclosed in the specification, and do not exclude the existence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, and are intended to cover non-exclusive inclusions.

[0031] 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.

[0032] The present application provides a vehicle, including a vehicle body and a photochromic glass. The photochromic glass is fixed to the vehicle body. Since the photochromic glass can change color under the action of an external electric current, it is understandable that the photochromic glass can absorb part of the light based on its own color, thereby adjusting the light inside the vehicle. This improves the user experience. Exemplarily, the photochromic glass can be applied to structures such as sunroofs, rearview mirrors, windshields, and windows in a vehicle.

[0033] It is understandable that in other embodiments, the photochromic glass can also be applied to other scenes that require light adjustment, such as eyeglass lenses, mobile phone screens, and mobile phone films. This application does not specifically limit this.

[0034] See also Figure 1 The structure diagram of the color-changing glass 100 provided in one embodiment of the present application is shown in FIG. Figure 2 The top cross-sectional schematic diagram of the photochromic glass 100 provided in one embodiment of the present application is shown. For ease of description, the thickness direction of the photochromic glass 100 of the present application is set as a first direction 001, and the mutually perpendicular second direction 002 and third direction 003 are both perpendicular to the first direction 001.

[0035] like Figure 1 and Figure 2 As shown, the color-changing glass 100 of the present application includes a first glass substrate 11, a second glass substrate 12 and a color-changing component 20. Among them, along the first direction 001, the first glass substrate 11, the color-changing component 20 and the second glass substrate 12 are stacked on each other. The light incident from the first glass substrate 11 or the second glass substrate 12 can be directed to the color-changing component 20, and the color-changing component 20 can absorb part of the light based on its own color, thereby realizing the adjustment of the light emitted from the second glass substrate 12 or the first glass substrate 11.

[0036] At the same time, the color-changing component 20 can change its own color under the action of an external circuit, so that the external light can adjust the color and light intensity of the light passing through the color-changing component 20 under the action of the color-changing component 20, thereby improving the adjustment range of the color-changing glass 100 of the present application for light.

[0037] Specifically, Figure 1 As shown, the color-changing component 20 includes a color-changing layer 21, a first conductive layer 221, a second conductive layer 222, and a diffusion ring 231. Along the first direction 001, the first conductive layer 221 is located between the color-changing layer 21 and the first glass substrate 11, the second conductive layer 222 is located between the color-changing layer 21 and the second glass substrate 12, and the diffusion ring 231 is disposed on the first conductive layer 221. The diffusion ring 231 is electrically connected to the positive pole of the external circuit, and the second conductive layer 222 is electrically connected to the negative pole of the external circuit.

[0038] It can be understood that the current of the external circuit can enter the first conductive layer 221 through the diffusion ring 231, and enter the second conductive layer 222 from the first conductive layer 221 through the color-changing layer 21, and flow back to the external circuit from the negative pole of the external circuit, thereby forming a closed loop.

[0039] Along the first direction 001, when there is a voltage difference between the two opposite sides of the color-changing layer 21, the current of the external circuit can flow into the color-changing layer 21, and the color-changing layer 21 can adjust its own color under the action of the current, thereby achieving the color-changing effect of the color-changing component 20. In addition, the color-changing function of the color-changing glass 100 of the present application is realized, and the light-adjusting function of the color-changing glass 100 of the present application is realized.

[0040] like Figure 2 As shown, the diffusion ring 231 is arranged on the surface of the first conductive layer 221 facing the second conductive layer 222, and the diffusion ring 231 is arranged around the periphery of the color-changing layer 21. As the diffusion ring 231 is annular, it can be understood that the current entering from the diffusion ring 231 will diffuse from the edge area to the central area along the second direction 002 and the third direction 003. Thus, the diffusion time of the current in the first conductive layer 221 is reduced.

[0041] The color of the color-changing layer 21 changes differently under the action of different voltages. It can be understood that the reduction of the diffusion time of the current in the first conductive layer 221 can reduce the time required for the current density of each region in the first conductive layer 221 to be consistent. When the current density is consistent, the current magnitude acting on each region of the color-changing layer 21 is also relatively consistent, so that the color uniformity of the color-changing layer 21 is better, thereby improving the color uniformity of the color-changing glass 100 of the present application.

[0042] At the same time, the reduction of the diffusion time of the current in the first conductive layer 221 can also reduce the time for the current to act on the color-changing layer 21 through the first conductive layer 221, thereby increasing the color change rate of the color-changing layer 21. This further increases the response speed of the color-changing glass 100 of the present application and improves the user experience.

[0043] like Figure 1 and Figure 2 As shown, along the first direction 001 , the diffusion ring 231 and the second conductive layer 222 are spaced apart so that the second conductive layer 222 and the diffusion ring 231 are insulated from each other, thereby avoiding a short circuit caused by contact between the diffusion ring 231 and the second conductive layer 222 .

[0044] Along the second direction 002 and the third direction 003, the diffusion ring 231 is spaced apart from the color-changing layer 21 to prevent the current of the external circuit from directly entering the color-changing layer 21 through the diffusion ring 231, so that the color of the edge area of ​​the color-changing layer 21 is inconsistent with the color of the remaining area, affecting the color uniformity of the color-changing glass 100 of the present application. At the same time, based on the diffusion ring 231 being located between the first conductive layer 221 and the second conductive layer 222, and the color-changing layer 21 having conductive properties. It can be understood that the spacing between the diffusion ring 231 and the color-changing layer 21 can also prevent the diffusion ring 231 and the second conductive layer 222 from short-circuiting due to the color-changing layer 21.

[0045] Therefore, compared with the solution in the prior art that directly connects the conductive layer to the external circuit, the color-changing glass 100 of the present application is provided with a diffusion ring 231 surrounding the periphery of the color-changing layer 21, so that the current of the external circuit can flow into the first conductive layer 221 after being acted upon by the diffusion ring 231. The diffusion ring 231 is used to diffuse the current from the edge area to the center area to reduce the diffusion time of the current in the first conductive layer 221, so that the current can be conducted to the color-changing layer 21 faster and more evenly. Thus, the response speed and color uniformity of the color-changing glass 100 of the present application are improved.

[0046] In one embodiment, the conductive square resistance of the material of the diffusion ring 231 is less than the conductive square resistance of the material of the first conductive layer 221. For materials of the same thickness, the greater the square resistance of the material, the greater the resistance of the corresponding material, and the worse the conductive performance of the corresponding material. It can be understood that the use of a material with a square resistance less than that of the material required to prepare the first conductive layer 221 to prepare the diffusion ring 231 can reduce the diffusion time of the current of the external circuit in the diffusion ring 231, and further reduce the diffusion time of the current in the diffusion ring 231, thereby improving the conduction rate of the current between the color-changing layers 21, and further improving the response speed of the color-changing glass 100 of the present application.

[0047] In one embodiment, the square resistance of the material of the diffusion ring 231 is between 5mΩ / □ and 30mΩ / □. Exemplarily, the square resistance of the material of the diffusion ring 231 is between 6mΩ / □ and 10mΩ / □. It is understandable that when the square resistance of the material of the diffusion ring 231 is less than 5mΩ / □, the voltage between the first conductive layer 221 and the second conductive layer 222 of the external circuit will increase, thereby increasing the voltage on the opposite sides of the color-changing layer 21. It is not conducive to the user to adjust the voltage on both sides of the color-changing layer 21 by adjusting the voltage of the external circuit.

[0048] When the square resistance of the material of the diffusion ring 231 is greater than 30 mΩ / □, the diffusion time of the external current on the diffusion ring 231 will be increased, which may cause the external current to flow directly into the first conductive layer 221 without being diffused by the diffusion ring 231, thereby increasing the diffusion time of the external current on the first conductive layer 221. Further, the color change uniformity and response speed of the color change glass 100 of the present application are affected.

[0049] Therefore, the color-changing glass 100 of the present application uses a material with a square resistance between 5mΩ / □ and 30mΩ / □ to prepare the diffusion ring 231, so that the user can adjust the color-changing effect of the color-changing layer 21 by adjusting the voltage of the external circuit, and the color-changing uniformity and response speed of the color-changing glass 100 of the present application can be improved, thereby improving the user experience.

[0050] In one embodiment, if Figure 1As shown, along the first direction 001, the diffusion ring 231 has a first thickness D1, wherein the first thickness D1 is between 40 μm and 200 μm. Exemplarily, the first thickness D1 is 100 μm. It is understandable that when the first thickness D1 is less than 40 μm, it is not conducive to achieving the connection between the diffusion ring 231 and the external circuit. At the same time, it may cause the diffusion ring 231 to be disconnected from the external circuit during transportation, thereby affecting the color-changing function of the color-changing glass 100 of the present application.

[0051] When the first thickness D1 is greater than 200 μm, due to the distance between the first conductive layer 221 and the second conductive layer 222 , the increase in the first thickness D1 will reduce the distance between the diffusion ring 231 and the second conductive layer 222 , which may cause the diffusion ring 231 to contact the second conductive layer 222 , thereby causing a short circuit.

[0052] Therefore, the photochromic glass 100 of the present application sets the first thickness D1 between 40 μm and 200 μm, thereby ensuring the connection between the diffusion ring 231 and the external circuit and avoiding the short circuit between the diffusion ring 231 and the second conductive layer 222, thereby ensuring the color changing function of the photochromic glass 100 of the present application.

[0053] In one embodiment, if Figure 1 As shown, along the second direction 002, the diffusion ring 231 has a first width W1, wherein the first width W1 is between 1 mm and 3 mm. Exemplarily, the first width W1 of the diffusion ring 231 is 2 mm. It is understandable that when the first width W1 is less than 1 mm, it is not conducive to achieving the connection between the diffusion ring 231 and the external circuit. At the same time, it may cause the diffusion ring 231 to be disconnected from the external circuit during transportation, thereby affecting the color-changing function of the color-changing glass 100 of the present application.

[0054] On the other hand, when the first width W1 is less than 1 mm, the contact area between the diffusion ring 231 and the first conductive layer 221 will also be reduced, thereby increasing the diffusion time of the current in the first conductive layer 221 and reducing the response speed of the color-changing glass 100 of the present application.

[0055] When the first width W1 is greater than 3 mm, the diffusion ring 231 will extend along the second direction 002 toward the color-changing layer 21, which will reduce the size of the color-changing layer 21 along the second direction 002, thereby affecting the color-changing effect of the color-changing glass 100 of the present application. At the same time, if the diffusion ring 231 extends along the second direction 002 in a direction away from the color-changing layer 21, the size of the entire color-changing glass 100 along the second direction 002 will also increase, reducing the proportion of the color-changing layer 21 on the color-changing glass 100 of the present application, thereby affecting the color-changing effect of the color-changing glass 100 of the present application.

[0056] Therefore, the color-changing glass 100 of the present application sets the first width W1 between 1 mm and 3 mm, while ensuring the connection effect between the diffusion ring 231 and the external circuit, it can also avoid the influence of the diffusion ring 231 on the proportion of the color-changing layer 21, and at the same time ensure the effect of the diffusion ring 231 on reducing the diffusion time of the first conductive layer 221. Thus, the color-changing function and color-changing effect of the color-changing glass 100 of the present application are guaranteed, and the response speed of the color-changing glass 100 of the present application is further improved.

[0057] In one embodiment, the diffusion ring 231 is made of one of metal silver, copper, silver paste, optical glue and conductive ink. Exemplarily, the diffusion ring 231 is made of silver paste.

[0058] In one embodiment, if Figure 1 As shown, the square resistance of the material of the first conductive layer 221 is between 5Ω / □-100Ω / □. Exemplarily, the square resistance of the material of the first conductive layer 221 is between 8Ω / □-15Ω / □. It can be understood that when the square resistance of the material of the first conductive layer 221 is less than 5Ω / □, the voltage on the opposite sides of the color-changing layer 21 will increase. It is not conducive to the user to adjust the voltage on both sides of the color-changing layer 21 by adjusting the voltage of the external circuit.

[0059] When the square resistance of the material of the first conductive layer 221 is greater than 100Ω / □, the diffusion time of the external current on the first conductive layer 221 is increased, thereby affecting the color change uniformity and response speed of the color change glass 100 of the present application.

[0060] Therefore, the photochromic glass 100 of the present application uses a material with a square resistance between 5Ω / □ and 100Ω / □ to prepare the first conductive layer 221, so that the user can adjust the color change effect of the photochromic layer 21 by adjusting the voltage of the external circuit, and the color change uniformity and response speed of the photochromic glass 100 of the present application can be improved, thereby improving the user experience.

[0061] In one embodiment, if Figure 1 As shown, along the first direction 001, the first conductive layer 221 has a second thickness D2, wherein the second thickness D2 is between 50nm-500nm. Exemplarily, the second thickness D2 is between 80nm-150nm. Based on the first conductive layer 221, it is possible to reduce electron radiation, ultraviolet rays and infrared rays. It can be understood that when the second thickness D2 is less than 50nm, the absorption capacity of the first conductive layer 221 to electron radiation, ultraviolet rays and infrared rays is reduced, thereby affecting the absorption efficiency of the color-changing glass 100 of the present application to electron radiation, ultraviolet rays and infrared rays.

[0062] The thickness of the first conductive layer 221 is also related to its own conductivity and transparency. It is understandable that when the second thickness D2 is greater than 500nm, the first conductive layer 221 may have a certain color, thereby affecting the color uniformity of the color-changing glass 100 of the present application. At the same time, the increase in the second thickness D2 will also affect the conductivity of the first conductive layer 221, thereby affecting the voltage difference between the two opposite sides of the color-changing layer 21, and affecting the color-changing function of the color-changing glass 100 of the present application.

[0063] Therefore, setting the first conductive layer 221 with a second thickness D2 between 50nm and 500nm can ensure the first conductive layer 221's absorption efficiency of electronic radiation, ultraviolet rays and infrared rays while also ensuring the conductivity and transparency of the first conductive layer 221, further ensuring the color uniformity and color changing function of the color-changing glass 100 of the present application.

[0064] In one embodiment, the first conductive layer 221 is made of one of indium tin oxide, tin oxide, antimony-doped tin oxide, fluorine-doped tin oxide, antimony-doped zinc oxide, and aluminum-doped zinc oxide, so as to ensure the light transmittance of the first conductive layer 221 and the conductivity of the first conductive layer 221. Exemplarily, the first conductive layer 221 is made of indium tin oxide.

[0065] See also Figure 3 Another structural schematic diagram of the color-changing glass 100 provided in one embodiment of the present application is shown.

[0066] like Figure 3 As shown, the color-changing component 20 also includes a first protective layer 241, wherein the first protective layer 241 is made of a conductive material and is located between the first conductive layer 221 and the color-changing layer 21 to separate the first conductive layer 221 from the color-changing layer 21. Acids and alkalis may exist based on the material used to prepare the color-changing layer 21. It can be understood that the provision of the first protective layer 241 can prevent the acid and alkali of the color-changing layer 21 from acting on the first conductive layer 221, thereby preventing the first conductive layer 221 from being corroded and ensuring the integrity of the first conductive layer 221. Further, the color-changing efficiency of the color-changing glass 100 of the present application is ensured.

[0067] like Figure 3As shown, the color-changing component 20 also includes a second protective layer 242, wherein the second protective layer 242 is made of a conductive material and is located between the second conductive layer 222 and the color-changing layer 21 to separate the second conductive layer 222 from the color-changing layer 21. Acids and alkalis may exist based on the material used to prepare the color-changing layer 21. It can be understood that the provision of the second protective layer 242 can block the acid and alkali of the color-changing layer 21 from acting on the second conductive layer 222, thereby preventing the second conductive layer 222 from being corroded and ensuring the integrity of the second conductive layer 222. The color-changing efficiency of the color-changing glass 100 of the present application is further guaranteed.

[0068] It is understandable that in other embodiments, the color-changing glass 100 of the present application may also only have the first protective layer 241 disposed between the first conductive layer 221 and the color-changing layer 21, or only have the second protective layer 242 disposed between the second conductive layer 222 and the color-changing layer 21. The present application does not specifically limit this.

[0069] In one embodiment, the first protection layer 241 is made of at least one of titanium, silver, aluminum, platinum, iridium, rhodium, ruthenium and copper.

[0070] In one embodiment, if Figure 1 and Figure 3 As shown, the first protective layer 241 has a third thickness D3, wherein the third thickness D3 is less than the second thickness D2. Based on the poor light transmittance of the material used to prepare the first protective layer 241. It can be understood that the first protective layer 241 having a third thickness D3 less than the second thickness D2 of the first conductive layer 221 can reduce the absorption effect of the first protective layer 241 on light while ensuring the conductive performance of the first protective layer 241, reduce the influence of the first protective layer 241 on the color of the color-changing glass 100 of the present application, and ensure the color uniformity of the color-changing glass 100 of the present application.

[0071] The third thickness D3 is between 5nm and 50nm, and illustratively, the third thickness D3 is between 8nm and 20nm. Based on the limited corrosion resistance of the first protective layer 241, it is understandable that when the third thickness D3 is less than 5nm, the protective effect of the first protective layer 241 on the first conductive layer 221 will be reduced, and the acid and alkali substances in the color-changing layer 21 may pass through the first protective layer 241 to corrode the first conductive layer 221. This affects the color-changing function of the color-changing glass 100 of the present application.

[0072] Since the material used to prepare the first protective layer 241 has poor light transmission performance, it is understandable that when the third thickness D3 is greater than 50 nm, the light directed to the first protective layer 241 will be more absorbed, and there is even a possibility that the light is blocked by the first protective layer 241. This affects the light transmission effect of the color-changing glass 100 of the present application.

[0073] Therefore, setting the third thickness D3 between 5 nm and 50 nm can ensure the protection effect of the first protective layer 241 on the first conductive layer 221 while reducing the shielding of light by the first protective layer 241, thereby ensuring the light transmission effect of the photochromic glass 100 of the present application.

[0074] In one embodiment, if Figure 1 and Figure 3 As shown, the second protective layer 242 has a fourth thickness D4, wherein the fourth thickness D4 is less than the thickness of the second conductive layer 222. While ensuring the conductive performance of the second protective layer 242, the absorption effect of the second protective layer 242 on light is reduced, the influence of the second protective layer 242 on the color of the color-changing glass 100 of the present application is reduced, and the color uniformity of the color-changing glass 100 of the present application is ensured.

[0075] The fourth thickness D4 is between 5 nm and 50 nm, and illustratively, the fourth thickness D4 is between 8 nm and 20 nm. While ensuring the protection effect of the second protective layer 242 on the second conductive layer 222, the shielding of the second protective layer 242 on light can also be reduced, thereby ensuring the light transmission effect of the color-changing glass 100 of the present application.

[0076] In one embodiment, the second protection layer 242 is made of at least one of titanium, silver, aluminum, platinum, iridium, rhodium, ruthenium, and copper.

[0077] In one embodiment, the first protective layer 241 and the second protective layer 242 are made of the same material.

[0078] In one embodiment, the thickness of the second protective layer 242 is between 5 nm and 50 nm. Exemplarily, the thickness of the second protective layer 242 is between 8 nm and 20 nm.

[0079] In one embodiment, the second conductive layer 222 is made of one of indium tin oxide, tin oxide, antimony-doped tin oxide, fluorine-doped tin oxide, antimony-doped zinc oxide, and aluminum-doped zinc oxide, so as to ensure the light transmittance of the second conductive layer 222 and the conductivity of the second conductive layer 222. Exemplarily, the second conductive layer 222 is made of indium tin oxide.

[0080] In one embodiment, the first conductive layer 221 and the second conductive layer 222 are made of the same material.

[0081] In one embodiment, the sheet resistance of the material of the second conductive layer 222 is between 5Ω / □ and 100Ω / □. Exemplarily, the sheet resistance of the material of the second conductive layer 222 is between 8Ω / □ and 15Ω / □.

[0082] In one embodiment, the thickness of the second conductive layer 222 is also between 50 nm and 500 nm. Exemplarily, the thickness of the second conductive layer 222 is between 80 nm and 150 nm.

[0083] See also Figure 4 Another schematic structural diagram of the photochromic glass 100 provided in one embodiment of the present application is shown.

[0084] like Figure 4 As shown, the color-changing component 20 further includes a second diffusion ring 232 . The second diffusion ring 232 is disposed on a surface of the second conductive layer 222 facing the first conductive layer 221 . The second diffusion ring 232 is disposed around the periphery of the color-changing layer 21 .

[0085] As the second diffusion ring 232 is annular, it is understandable that the current flowing to the second conductive layer 222 through the color-changing layer 21 will diffuse from the central area to the edge area along the second direction 002 and the third direction 003 , thereby reducing the diffusion time of the current in the second conductive layer 222 .

[0086] The diffusion ring 231 can reduce the diffusion time of the current in the first conductive layer 221. It can be understood that the cooperation between the diffusion ring 231 and the second diffusion ring 232 further reduces the diffusion time of the current in the first conductive layer 221 and the second conductive layer 222, thereby reducing the time required for the current on the two opposite sides of the color-changing layer 21 to be uniform, further improving the color change rate of the color-changing layer 21, improving the response speed of the color-changing glass 100 of the present application, and improving the user experience.

[0087] like Figure 4 As shown, along the first direction 001, the second diffusion ring 232 is spaced from the diffusion ring 231, so that the second diffusion ring 232 and the diffusion ring 231 are insulated from each other, thereby avoiding a short circuit caused by contact between the diffusion ring 231 and the second diffusion ring 232. At the same time, the influence on the color of the color-changing layer 21 caused by the current directly flowing from the color-changing layer 21 into the second diffusion ring 232 is also avoided, thereby ensuring the color uniformity of the color-changing glass 100.

[0088] Along the second direction 002 and the third direction 003, the second diffusion ring 232 is spaced apart from the color-changing layer 21 to prevent the diffusion ring 231 and the second diffusion ring 232 from forming an electric field under the action of an external circuit, thereby causing the diffusion ring 231 and the second diffusion ring 232 to be conductive, thereby avoiding a short circuit between the diffusion ring 231 and the second diffusion ring 232.

[0089] In one embodiment, the second diffusion ring 232 is made of one of metal silver, copper, silver paste, optical glue and conductive ink. Exemplarily, the second diffusion ring 232 is made of silver paste.

[0090] In one embodiment, the second diffusion ring 232 and the diffusion ring 231 are made of the same material.

[0091] In one embodiment, the sheet resistance of the material of the second diffusion ring 232 is between 5 mΩ / □ and 30 mΩ / □. Exemplarily, the sheet resistance of the material of the diffusion ring 231 is between 6 mΩ / □ and 10 mΩ / □.

[0092] In one embodiment, the thickness of the second diffusion ring 232 is between 40 μm and 200 μm. For example, the thickness of the second diffusion ring 232 is 100 μm.

[0093] In one embodiment, the width of the second diffusion ring 232 is between 1 mm and 3 mm. For example, the width of the second diffusion ring 232 is 2 mm.

[0094] See also Figure 5 The figure shows a schematic cross-sectional structure of a photochromic glass 100 provided in one embodiment of the present application.

[0095] like Figure 5 As shown, the color-changing component 20 further includes an insulating layer 25, and along the first direction 001, the insulating layer 25 is located between the diffusion ring 231 and the second diffusion ring 232 to achieve insulation between the diffusion ring 231 and the second diffusion ring 232, thereby reducing the possibility of short circuit between the diffusion ring 231 and the second diffusion ring 232. Thus, the use safety of the color-changing glass 100 of the present application is guaranteed.

[0096] It can be understood that in another embodiment, the insulating layer 25 can also be provided as two layers, and both are located between the diffusion ring 231 and the second diffusion ring 232 along the first direction 001. One insulating layer 25 is coated on the surface of the diffusion ring 231 facing the second diffusion ring 232, and the other insulating layer 25 is coated on the surface of the second diffusion ring 232 facing the diffusion ring 231, and the two insulating layers 25 are spaced from each other. In this way, insulation between the diffusion ring 231 and the second diffusion ring 232 is achieved.

[0097] In one embodiment, if Figure 5 As shown, the insulating layer 25 extends toward the first conductive layer 221 and is filled between the diffusion ring 231 and the color-changing layer 21 to achieve insulation between the diffusion ring 231 and the color-changing layer 21, and reduce the possibility of the current in the diffusion ring 231 being directly transmitted to the color-changing layer 21. At the same time, the situation where the diffusion ring 231 and the second diffusion ring 232 are connected due to the color-changing layer 21 is also avoided. On the other hand, the formation of an electric field between the diffusion ring 231 and the second diffusion ring 232 under the action of an external current is also avoided, and the possibility of a short circuit between the diffusion ring 231 and the second diffusion ring 232 under the action of an electric field is avoided. Thereby, the use safety of the color-changing glass 100 of the present application is achieved.

[0098] It can be understood that in another embodiment, Figure 6 As shown, the insulating layer 25, while filling between the diffusion ring 231 and the color-changing layer 21, also extends toward the second conductive layer 222 and fills the second diffusion ring 232 and the color-changing layer 21, so as to further avoid the influence of the diffusion ring 231 and the second diffusion ring 232 on the color-changing effect of the color-changing layer 21, further ensure the insulation performance between the diffusion ring 231 and the second diffusion ring 232, and further improve the safety of the color-changing glass of the present application.

[0099] In another embodiment, the insulating layer 25 may also extend only toward the second conductive layer 222 and fill the second diffusion ring 232 and the color-changing layer 21. This application does not specifically limit this.

[0100] In one embodiment, the insulating layer 25 is made of insulating ink.

[0101] In one embodiment, the resistance of the material of the insulating layer 25 is greater than 10 5 Ω. Exemplarily, the resistance of the material of the insulating layer 25 is greater than 10 6 Ω.

[0102] In one embodiment, the thickness of the insulating layer 25 is between 5 μm and 80 μm, and exemplary, the thickness of the insulating layer 25 is between 8 μm and 20 μm. It is understandable that limiting the thickness of the insulating layer 25 to between 5 μm and 80 μm can avoid the influence of too small thickness on the insulating effect of the insulating layer 25, and can also avoid the influence of too thick insulating layer 25 on the overall thickness of the photochromic glass 100. Thus, the use safety of the photochromic glass 100 of the present application is guaranteed.

[0103] In one embodiment, the width of the insulating layer 25 is between 3 mm and 5 mm. Exemplarily, the width of the insulating layer 25 is between 4 mm and 4.5 mm. It is understandable that limiting the width of the insulating layer 25 to between 3 mm and 5 mm can avoid the influence of too small a width on the insulating effect of the insulating layer 25, and can also avoid the influence of too large a width on the space occupation of the color-changing layer 21. Thus, the color-changing efficiency of the color-changing glass 100 of the present application is guaranteed.

[0104] In one embodiment, if Figure 1-Figure 6 As shown, the color-changing component 20 further includes a packaging layer 26, which is annular and surrounds the color-changing layer 21. The insulating layer 25, the diffusion ring 231 and the second diffusion ring 232 are spaced apart from the color-changing layer 21 by the packaging layer 26.

[0105] Since the material used in the color-changing layer 21 is generally fluid, it is understandable that the encapsulation layer 26 surrounding the color-changing layer 21 can further improve the insulation performance between the color-changing layer 21 and the diffusion ring 231 and the second diffusion ring 232, and can also limit the relative position of the color-changing layer 21. At the same time, the color-changing layer 21 can be separated from the external environment to prevent water and oxygen from entering the color-changing layer 21 and reacting with the material of the color-changing layer 21. Thereby, the color-changing effect of the color-changing glass 100 of the present application is improved.

[0106] In one embodiment, the encapsulation layer 26 is made of at least one of phenolic resin, epoxy resin and organic silicone adhesive. For example, the encapsulation layer 26 is made of epoxy resin. It is understandable that in other embodiments, the encapsulation layer 26 can also be made of other materials that have good bonding effect, good sealing performance, low permeability to water, oxygen and organic solvents, and do not react with the color-changing layer 21 material.

[0107] In one embodiment, if Figure 6 As shown, along the first direction 001, the encapsulation layer 26 has a fifth thickness D5, wherein the fifth thickness D5 is between 70 μm and 250 μm, and illustratively, the fifth thickness D5 is between 100 μm and 150 μm. Based on the fact that the thickness of the color-changing layer 21 along the first direction 001 remains unchanged, it can be understood that when the fifth thickness D5 is less than 70 μm, a part of the color-changing layer 21 is connected to the external environment, and water and oxygen in the external environment will react with the exposed part of the color-changing layer 21, thereby affecting the color-changing effect of the color-changing glass 100 of the present application.

[0108] When the fifth thickness D5 is greater than 250 μm, there is a gap between the color-changing layer 21 and the encapsulation layer 26. Since the color-changing layer 21 has fluidity, it is understandable that the color-changing layer 21 may be separated from the first conductive layer 221 or the second conductive layer 222, thereby affecting the conduction between the external current and the color-changing layer 21. This further affects the color-changing function and color-changing effect of the color-changing glass 100 of the present application.

[0109] Therefore, by setting the fifth thickness D5 between 70 μm and 250 μm, it is possible to ensure the blocking effect of the encapsulation layer 26 on the color-changing layer 21, and also ensure the conduction between the color-changing layer 21 and the first conductive layer 221 and the second conductive layer 222. Thus, the color-changing function and color-changing effect of the color-changing glass 100 of the present application are ensured.

[0110] In one embodiment, if Figure 6As shown, the encapsulation layer 26 has a second width W2, wherein the second width W2 is between 1.2 mm and 4 mm. Exemplarily, the second width W2 is between 1.8 mm and 2.2 mm. It can be understood that setting the second width W2 between 1.2 mm and 4 mm can avoid the situation where the water and oxygen blocking effect of the encapsulation layer 26 is poor due to the second width W2 being too small, and can also avoid the situation where the space of the color-changing layer 21 is small due to the second width W2 being too large. Thereby, the water and oxygen blocking effect of the encapsulation layer 26 is guaranteed, and the color-changing effect of the color-changing glass 100 of the present application is further guaranteed.

[0111] In one embodiment, if Figure 5 and Figure 6 As shown, the color-changing glass 100 of the present application further includes a first base layer 31 and a second base layer 32. In the first direction 001, the first base layer 31 is disposed between the first glass substrate 11 and the first conductive layer 221, and the second base layer 32 is disposed between the second glass substrate 12 and the second conductive layer 222.

[0112] The process of setting the first conductive layer 221 and the second conductive layer 222 based on the existing process. It can be understood that the setting of the first base layer 31 and the second base layer 32 can reduce the difficulty of setting the first conductive layer 221 and the second conductive layer 222 on the first glass substrate 11 and the second glass substrate 12, thereby ensuring the connection effect between the first conductive layer 221 and the second conductive layer 222 and the first glass substrate 11 and the second glass substrate 12, while also reducing the process difficulty and facilitating the preparation.

[0113] In one embodiment, the first substrate layer 31 is made of one of titanium dioxide, tantalum pentoxide, niobium pentoxide, silicon dioxide and magnesium fluoride. Exemplarily, the first substrate layer 31 is made of niobium pentoxide.

[0114] In one embodiment, the thickness of the first substrate layer 31 is between 30nm and 100nm. Exemplarily, the thickness of the first substrate layer 31 is between 30nm and 50nm. It is understandable that the first substrate layer 31 with a thickness between 30nm and 100nm can avoid the influence on the preparation effect of the first conductive layer 221 caused by the first substrate layer 31 being too thin, and can also avoid the influence on the overall thickness of the color-changing glass 100 caused by the first substrate layer 31 being too thick.

[0115] In one embodiment, the second substrate layer 32 is made of one of titanium dioxide, tantalum pentoxide, niobium pentoxide, silicon dioxide and magnesium fluoride. Exemplarily, the second substrate layer 32 is made of niobium pentoxide.

[0116] In one embodiment, the thickness of the second substrate layer 32 is between 30nm and 100nm. Exemplarily, the thickness of the second substrate layer 32 is between 30nm and 50nm. It is understandable that the second substrate layer 32 with a thickness between 30nm and 100nm can avoid the influence on the preparation effect of the second conductive layer 222 caused by the second substrate layer 32 being too thin, and can also avoid the influence on the overall thickness of the color-changing glass 100 caused by the second substrate layer 32 being too thick.

[0117] See also Figure 7 FIG. 1 is another schematic cross-sectional structure diagram of the color-changing glass 100 in one embodiment of the present application.

[0118] like Figure 7 As shown, the size of the second glass substrate 12 is smaller than that of the first glass substrate 11, and correspondingly, the second diffusion ring 232 can also extend along the first direction 001 and directly contact the side of the second conductive layer 222. It can be understood that the size of the second glass substrate 12 is set to be different from that of the first glass substrate 11, so that the color-changing glass 100 of the present application can match different usage conditions.

[0119] In one embodiment, the color-changing layer 21 is a composition including a cathode color-changing material and an anode color-changing material. The cathode color-changing material is at least one of viologen, substituted viologen, allium quinone and substituted anthraquinone. Exemplarily, the cathode color-changing material is methyl viologen. The concentration of the cathode color-changing material is between 10mmol / L-300mmol / L. Exemplarily, the concentration of the cathode color-changing material is between 50mmol / L-80mmol / L.

[0120] The anode color-changing material is at least one of diphenylamine, substituted diphenylamine, N-substituted compounds of diphenylamine, triphenylamine, substituted triphenylamine, ferrocene, substituted ferrocene, ferrocenium salt, substituted ferrocenium salt, phenothiazine, substituted phenothiazine, thienyl, substituted thienyl, phenazine, substituted phenazine, 5,10-dihydrophenazine and substituted 5,10-dihydrophenazine. Exemplarily, the anode color-changing material is N-substituted compounds of diphenylamine, substituted phenothiazine and substituted 5,10-dihydrophenazine. The concentration of the anode color-changing material is between 10mmol / L-300mmol / L. Exemplarily, the concentration of the anode color-changing material is between 60mmol / L-100mmol / L.

[0121] It can be understood that the anode color-changing material and the cathode color-changing material can change their own colors respectively under the action of the voltage difference on the two opposite sides of the color-changing layer 21, thereby realizing the color-changing function of the color-changing glass 100 of the present application.

[0122] In one embodiment, the color-changing layer 21 further includes a solvent, wherein the solvent is at least one of sulfones, amides, ethers, alcohols, nitriles, ketones and esters. Specifically, the solvent is at least one of 3-methyl cyclobutane sulfone, dimethyl sulfoxide, dimethylformamide, tetraethylene glycol dimethyl ether, ethoxyethanol, acetonitrile, glutaronitrile, 3-hydroxypropionitrile, 2-methylglutaronitrile, 2-acetyl butyrolactone, cyclopentanone, β-propiolactone, γ-butyrolactone, γ-valerolactone, propylene carbonate, ethylene carbonate and propylene carbonate. Exemplarily, the solvent is propylene carbonate, dimethyl sulfoxide and dimethylformamide.

[0123] The solvent can dissolve and disperse the anode color-changing material and the cathode color-changing material, so that the anode color-changing material and the cathode color-changing material can be mixed with each other, ensuring the uniformity of the color change of the color-changing layer 21 of the present application. In turn, the color uniformity of the color-changing glass 100 of the present application is ensured. It can be understood that in other embodiments, the solvent can also be other materials that can dissolve or disperse the anode color-changing material and the cathode color-changing material and react with the anode color-changing material and the cathode color-changing material.

[0124] In one embodiment, the color-changing layer 21 further comprises an anti-stratification agent. The anti-stratification agent is a polymer containing an ester group. Specifically, the anti-stratification agent is at least one of polyacrylate, polymethacrylate and polyaromatic ester. Exemplarily, the anti-stratification agent is polymethyl methacrylate. The concentration of the anti-stratification agent is between 1wt%-6wt%. Exemplarily, the concentration of the anti-stratification agent is between 4wt%-6wt%.

[0125] The anti-stratification agent can prevent the color-changing layer 21 from stratifying, ensure that the components of the color-changing layer 21 are evenly dispersed, and further improve the color uniformity of the color-changing layer 21. At the same time, the anti-stratification agent can also improve the service life of the components of the color-changing layer 21.

[0126] In one embodiment, the color-changing layer 21 further includes an electrolyte to improve the ionic conductivity of the color-changing layer 21, thereby improving the color-changing response speed of the color-changing layer 21, and further improving the response speed of the color-changing glass 100 of the present application.

[0127] The electrolyte is at least one of lithium trifluoromethanesulfonate, lithium perchlorate, lithium tetrafluoroborate and lithium hexafluorophosphate. Exemplarily, the electrolyte is lithium tetrafluoroborate. The content of the electrolyte is between 0.05 mol / L and 1 mol / L. Exemplarily, the concentration of the electrolyte is 0.5 mol / L.

[0128] In one embodiment, the color-changing layer 21 further includes a thickener to adjust the viscosity of the color-changing layer 21 to avoid the color-changing layer 21 being separated from the first conductive layer 221 or the second conductive layer 222 due to too low viscosity of the color-changing layer 21 .

[0129] Wherein, the thickener is at least one of polyamide, polyimide, polycarbonate, polymethacrylate, polyacrylate, polysilane, polysiloxane, polyvinyl acetate, polymethacrylonitrile, polyacrylonitrile, polyvinylphenol, polyvinyl alcohol and polyvinylidene halide. Exemplarily, the thickener is polyvinylidene fluoride. The content of the thickener is between 0.05wt% and 3wt%. Exemplarily, the content of the thickener is between 0.05wt% and 1.5wt%.

[0130] In one embodiment, the color-changing layer 21 further includes an antioxidant to improve the durability of the color-changing layer 21 and extend its service life. The antioxidant is an organic substance of non-hindered phenols, and illustratively, the antioxidant is at least one of 1,3,5-tri-tert-butylphenol, 1,5-tert-butyl-3-methylphenol, 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, 2-(2'-hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole, 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole, 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)benzotriazole, 2-(2'-hydroxy-3',5'-di-pentylphenyl)benzotriazole, 2-(2'-hydroxy-5'-tert-octylphenyl)benzotriazole and 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)benzotriazole.

[0131] In other embodiments, the antioxidant may also be some olefinic organic matter. Exemplarily, the antioxidant is at least one of methyl methacrylate, ethyl methacrylate, etc.; preferably at least one of 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, 1,5-tert-butyl-3-methylphenol and methyl methacrylate.

[0132] In one embodiment, the concentration of the antioxidant is between 20 mmol / L and 500 mmol / L. Exemplarily, the concentration of the antioxidant is between 50 mmol / L and 100 mmol / L.

[0133] In one embodiment, the color-changing layer 21 further includes an anti-ultraviolet agent to improve the light stability of the color-changing layer 21 and improve the service life of the color-changing layer 21. Wherein. The anti-ultraviolet agent is at least one of 2-ethyl-2-cyano-3,3-diphenyl acrylate, acrylic acid (2-ethylhexyl)-2-cyano-3,3-diphenyl ester, 2-(2'-hydroxy-4'-methylphenyl) benzotriazole, 3-[3-(2H-benzotriazole-2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl] propionate, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone and 2-ethyl-2'-ethoxypropionanilide. Exemplarily, the anti-ultraviolet agent is 2-hydroxy-4-methoxybenzophenone.

[0134] The content of the ultraviolet light absorber is between 1 wt% and 4 wt%. Exemplarily, the content of the ultraviolet light absorber is between 3 wt% and 4 wt%.

[0135] In one embodiment, as Figure 5 and Figure 6 shown, along the first direction 001, the overall measured L*a*b* value of the structure formed by the cooperation of the first glass substrate 11, the first base layer 31, the first conductive layer 221, and the first protective layer 241 is measured. Among them, L*>80, -3 < a* < 3, -10 < b* < -1. Exemplarily, L*>85, -1.5 < a* < 0, -8 < b* < -4.

[0136] Based on the L*a*b* value, it can reflect the lightness, red-green degree, and yellow-blue degree of the structure to light. That is, the larger the range of the L*a*b* value of the structure, the less the amount of light absorbed by the corresponding light passing through the structure, and the smaller the light absorption rate of the structure. It can be understood that setting the range of the L*a*b* value of the structure formed by the cooperation of the first glass substrate 11, the first base layer 31, the first conductive layer 221, and the first protective layer 241 to L*>80, -3 < a* < 3, -10 < b* < -1 can, while ensuring the effects of the first glass substrate 11, the first base layer 31, the first conductive layer 221, and the first protective layer 241, also reduce the influence of the first glass substrate 11, the first base layer 31, the first conductive layer 221, and the first protective layer 241 on light. Further ensure the color-changing effect of the color-changing glass 100 of the present application.

[0137] Next, in combination with three possible embodiments (Embodiment 1, Embodiment 2, and Embodiment 3) that the color-changing glass 100 of the present application may adopt and a typical embodiment in the prior art (Comparative Example 1), the beneficial effects that the color-changing glass 100 of the present application may achieve are compared and described:

[0138] Embodiment 1

[0139] Provide a color-changing glass 100, which includes a first glass substrate 11, a second glass substrate 12, and a color-changing component 20, and the color-changing component 20 is sandwiched between the first glass substrate 11 and the second glass substrate 12.

[0140] The color-changing component 20 includes a color-changing layer 21, a first conductive layer 221, a second conductive layer 222 and a diffusion ring 231. Along the first direction 001, the first conductive layer 221 is located between the color-changing layer 21 and the first glass substrate 11, the second conductive layer 222 is located between the color-changing layer 21 and the second glass substrate 12, and the diffusion ring 231 is arranged on the first conductive layer 221 and surrounded by the periphery of the color-changing layer 21, and is insulated from the second conductive layer 222 and the color-changing layer 21. Among them, the diffusion ring 231 is electrically connected to the positive pole of the external circuit, and the second conductive layer 222 is electrically connected to the negative pole of the external circuit. In addition, the length and width of the color-changing glass 100 are both 40mm, and the coloring response time and fading response time of the color-changing glass 100 are tested at a test voltage of 1.3V.

[0141] Example 2

[0142] A color-changing glass 100 is provided. The color-changing glass 100 includes a first glass substrate 11 , a second glass substrate 12 , and a color-changing component 20 . The color-changing component 20 is sandwiched between the first glass substrate 11 and the second glass substrate 12 .

[0143] The color-changing component 20 includes a color-changing layer 21, a first conductive layer 221, a second conductive layer 222 and a diffusion ring 231. Along the first direction 001, the first conductive layer 221 is located between the color-changing layer 21 and the first glass substrate 11, the second conductive layer 222 is located between the color-changing layer 21 and the second glass substrate 12, and the diffusion ring 231 is arranged on the first conductive layer 221 and surrounded by the periphery of the color-changing layer 21, and is insulated from the second conductive layer 222 and the color-changing layer 21. Among them, the diffusion ring 231 is electrically connected to the negative pole of the external circuit, and the second conductive layer 222 is electrically connected to the positive pole of the external circuit. In addition, the length and width of the color-changing glass 100 are both 40 mm, and the coloring response time and fading response time of the color-changing glass 100 are tested at a test voltage of 1.3V.

[0144] Example 3

[0145] A color-changing glass 100 is provided. The color-changing glass 100 includes a first glass substrate 11 , a second glass substrate 12 , and a color-changing component 20 . The color-changing component 20 is sandwiched between the first glass substrate 11 and the second glass substrate 12 .

[0146] The color changing component 20 includes a color changing layer 21, a first conductive layer 221, a second conductive layer 222, a diffusion ring 231 and a second diffusion ring 232. Along the first direction 001, the first conductive layer 221 is located between the color changing layer 21 and the first glass substrate 11, and the second conductive layer 222 is located between the color changing layer 21 and the second glass substrate 12.

[0147] The diffusion ring 231 is disposed on the first conductive layer 221 and surrounds the periphery of the color-changing layer 21, and the second diffusion ring 232 is disposed on the second conductive layer 222 and surrounds the periphery of the color-changing layer 21. The diffusion ring 231 and the second diffusion ring 232 are insulated from each other and are both insulated from the color-changing layer 21. The diffusion ring 231 is electrically connected to the positive pole of the external circuit, and the second diffusion ring 231 is electrically connected to the negative pole of the external circuit. In addition, the length and width of the color-changing glass 100 are both 40 mm, and the coloring response time and fading response time of the color-changing glass 100 are tested at a test voltage of 1.3 V.

[0148] Comparative Example 1

[0149] A color-changing glass 100 ′ is provided. The color-changing glass 100 ′ includes a first glass substrate 11 ′, a second glass substrate 12 ′ and a color-changing component 20 ′. The color-changing component 20 ′ is sandwiched between the first glass substrate 11 ′ and the second glass substrate 12 ′.

[0150] The color-changing component 20' includes a color-changing layer 21', a first conductive layer 22' and a second conductive layer 23'. The first conductive layer 22' and the second conductive layer 23' are respectively arranged on opposite sides of the color-changing layer 21'. The first conductive layer 22' is electrically connected to the positive pole of the external circuit, and the second conductive layer 23' is electrically connected to the negative pole of the external circuit. In addition, the length and width of the color-changing glass 100' are both 40mm, and the coloring response time and fading response time of the color-changing glass 100' are tested at a test voltage of 1.3V.

[0151] The response speeds of the color-changing glasses of Example 1, Example 2, Example 3 and Comparative Example 1 were tested and statistically analyzed, and the results are shown in Table 1 below.

[0152] Table 1:

[0153] experiment positive electrode negative electrode Response time / s Fading time / s Example 1 Diffuser Ring Second conductive layer 2.0 13.1 Example 2 Second conductive layer Diffuser Ring 3.9 18.4 Example 3 Diffuser Ring Second diffusion ring 1.7 11.2 Comparative Example 1 First conductive layer Second conductive layer 5.1 25.1

[0154] From the test data obtained above, it can be concluded that the tinting response time of the color-changing glass 100 of Example 1, Example 2 and Example 3 is shorter than the tinting response time of the color-changing glass 100' of Comparative Example 1. This is because Example 1, Example 2 and Example 3 all adopt the annular diffusion ring 231 provided by the present application, which can reduce the diffusion time of the current in the corresponding first conductive layer 221 or second conductive layer 222 while ensuring that the external current can be conducted to the corresponding first conductive layer 221 or second conductive layer 222, thereby reducing the time required for the external current to be conducted from the opposite sides of the color-changing layer 21. As a result, the tinting response time of the color-changing glass 100 of Example 1, Example 2 and Example 3 is shorter than the tinting response time of Comparative Example 1.

[0155] At the same time, it can also be concluded from the test data obtained above that the fading response time of the color-changing glass 100 of Example 1, Example 2 and Example 3 is shorter than the fading response time of the color-changing glass 100' of Comparative Example 1. This is because Example 1, Example 2 and Example 3 all adopt the annular diffusion ring 231 provided by the present application, which can reduce the diffusion time of the current in the corresponding first conductive layer 221 or second conductive layer 222 while ensuring that the external current can be conducted to the corresponding first conductive layer 221 or second conductive layer 222, thereby reducing the time required for the external current to be disconnected from the opposite sides of the color-changing layer 21. As a result, the fading response time of the color-changing glass 100 of Example 1, Example 2 and Example 3 is shorter than the fading response time of Comparative Example 1.

[0156] In summary, compared with the prior art, the color-changing glass 100 of the present application is provided with an annular diffusion ring 231, and the diffusion ring 231 is arranged around the periphery of the color-changing layer 21, so that the external current can be diffused through the diffusion ring 231 before being transmitted to the corresponding first conductive layer 221 or the second conductive layer 222, so that the external current can diffuse from the edge area of ​​the corresponding first conductive layer 221 or the second conductive layer 222 to the central area, reducing the diffusion time of the current in the first conductive layer 221 or the second conductive layer 222. In addition, the coloring response time and the fading response time required for the current to act on the color-changing layer 21 are reduced, and the response speed of the color-changing glass 100 of the present application is improved. It should be understood that the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0157] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" 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 representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0158] It should be understood that the application of the present application is not limited to the above examples. For ordinary technicians in the field, improvements or changes can be made according to the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application. Ordinary technicians in the field can understand that all or part of the processes of the above embodiments are implemented, and equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

1. A color-changing glass, characterized in that: The invention comprises two glass substrates and a color-changing component sandwiched between the two glass substrates, wherein the color-changing component comprises a color-changing layer, a diffusion ring, a first conductive layer and a second conductive layer, wherein the diffusion ring and the color-changing layer are arranged on the first conductive layer, the second conductive layer is located on a side of the color-changing layer away from the first conductive layer, and the diffusion ring is insulated from the color-changing layer and the second conductive layer respectively; The diffusion ring and the second conductive layer are respectively connected to an external circuit to form a voltage difference between the first conductive layer and the second conductive layer to change the color of the color-changing layer. The diffusion ring is arranged around the periphery of the color-changing layer, and the conductive square resistance of the material of the diffusion ring is smaller than the conductive square resistance of the material of the first conductive layer.

2. The color-changing glass according to claim 1, characterized in that: The conductive sheet resistance of the material of the diffusion ring is between 5 mΩ / □ and 30 mΩ / □; and / or the conductive sheet resistance of the material of the first conductive layer is between 5 Ω / □ and 100 Ω / □.

3. The color-changing glass according to claim 1, characterized in that: The diffusion ring is made of one of metal silver, copper, silver paste, optical glue and conductive ink; and / or, The first conductive layer is made of one of indium tin oxide, tin oxide, antimony-doped tin oxide, fluorine-doped tin oxide, antimony-doped zinc oxide and aluminum-doped zinc oxide.

4. The color-changing glass according to any one of claims 1 to 3, characterized in that: The color-changing component further includes a first protective layer, which is conductive and located between the first conductive layer and the color-changing layer, and is used to prevent the first conductive layer from being corroded; and / or, The color-changing component also includes a second protective layer, which is conductive and located between the second conductive layer and the color-changing layer, and the second protective layer is used to prevent the second conductive layer from being corroded.

5. The color-changing glass according to claim 4, characterized in that: The first protective layer and / or the second protective layer are made of at least one of titanium, silver, aluminum, platinum, iridium, rhodium, ruthenium and copper.

6. The color-changing glass according to claim 5, characterized in that: The thickness of the first protective layer is less than the thickness of the first conductive layer, and the thickness of the first protective layer is between 5 nm and 50 nm; and / or, The thickness of the second protective layer is smaller than the thickness of the second conductive layer, and the thickness of the second protective layer is between 5nm and 50nm.

7. The color-changing glass according to any one of claims 1 to 3, characterized in that: The color-changing component also includes a second diffusion ring, which is arranged on the second conductive layer and surrounds the periphery of the color-changing layer. The second diffusion ring is insulated from the color-changing layer and the diffusion ring respectively, and the second conductive layer is connected to an external circuit through the second diffusion ring.

8. The color-changing glass according to claim 7, characterized in that: The second diffusion ring and the diffusion ring are made of the same material; and / or, The second conductive layer and the first conductive layer are made of the same material.

9. The color-changing glass according to claim 7, characterized in that: The color-changing component further includes an insulating layer, wherein the insulating layer is located between the diffusion ring and the second diffusion ring, and the insulating layer is used to achieve insulation between the diffusion ring and the second diffusion ring.

10. The color-changing glass according to claim 9, characterized in that: The insulating layer extends toward the first conductive layer and fills between the diffusion ring and the color-changing layer; and / or, The insulating layer extends toward the second conductive layer and is filled between the second diffusion ring and the color changing layer.

11. A vehicle, characterized in that: It comprises a vehicle body and the color-changing glass according to any one of claims 1 to 10, wherein the color-changing glass is embedded in the vehicle body.

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