Glass and articles

Abstract

The application relates to a glass and an article. The glass comprises a light-transmitting body and a conductive film. The conductive film is connected to the light-transmitting body, and the conductive film is provided with a film-removed area. The film-removed area is formed with a mesh grid. Parts of the conductive film corresponding to mesh lines of the mesh grid are all removed, and parts of the conductive film corresponding to mesh holes of the mesh grid are reserved on the light-transmitting body. On the one hand, electromagnetic waves of a preset working frequency band are smoothly transmitted in the film-removed area, and transmission loss is small. On the other hand, only a small amount of the conductive film is removed in the film-removed area, the area of the conductive film reserved in the film-removed area is large, the infrared rays can still be effectively reflected, the infrared rays are shielded, the temperature in the vehicle is not easily increased, and in addition, compared with a complete film-removing mode, the color difference between the film-removed area and a non-film-removed area can be reduced, so that a lace covering the film-removed area in the related art is not needed, cost is reduced, and the field of view is not shielded.

Description

Technical Field

[0001] This application relates to the field of glass technology, and in particular to a glass and an article thereof. Background Technology

[0002] With the development of vehicle glass technology, in order to meet the needs of heat insulation, sun protection, defrosting, and defogging, automotive glass is covered with various functional films, including heat insulation films, dimming films, and heating films. These films are usually conductive films containing metallic nano-coatings. While achieving the aforementioned functional effects, they also absorb or reflect radio waves, thus weakening or reducing the reception quality of antennas inside the vehicle, leading to antenna detuning and performance degradation.

[0003] Please see Figure 1 and Figure 2 , Figure 1 and Figure 2 Structural diagrams of windshields from two different embodiments in related technologies are shown. In related technologies, to overcome the energy reflection and absorption problems of radio frequencies such as FM, AM, DTV, DAB, ETC, 4G, and 5G, the conductive film covering the communication equipment is typically windowed to reduce radio wave transmission loss and facilitate radio wave transmission. Specifically, as shown... Figure 1 As shown, when glass 10 is a windshield, a transmission window (i.e., a film removal area 11) is formed on the conductive film at the location opposite to the left and right sides of the rearview mirror. The conductive film in this transmission window is completely removed, as shown. Figure 1 The two blank areas shown are corresponding to the non-removed areas 12, where the conductive film was not removed. Figure 1 The area outside the two blank areas shown. The color difference between the decoction area 11 and the non-decoction area 12 is significant. To reduce the color difference between the decoction area 11 and the non-decoction area 12, please refer to... Figure 2 The glass 10 has a decorative border 13 formed by multiple black ink dots. The border 13 can cover the film removal area 11 to reduce color difference. However, the heat insulation performance of the border 13 is poor, resulting in a high temperature inside the vehicle, and the presence of the border 13 also obstructs the view of the occupants. Utility Model Content

[0004] Therefore, it is necessary to provide a glass and article that can easily transmit electromagnetic waves, has little color difference, and does not obstruct the field of vision, in order to address at least one of the technical problems in the prior art.

[0005] On one hand, this application provides a glass comprising:

[0006] The light-transmitting body; and

[0007] A conductive film is connected to the light-transmitting body. The conductive film has a film removal area, which is formed with a mesh grid. All parts of the conductive film corresponding to the grid lines of the mesh grid are removed, while the parts of the conductive film corresponding to the mesh openings of the mesh grid are retained in the light-transmitting body.

[0008] Wherein, the length of the maximum side of the circumscribed rectangle of the mesh is set as D, and the line width of the grid line is set as W, where W / D < 1.

[0009] In one embodiment, the mesh is set as a polygon, and the electromagnetic waves of the preset working frequency band that the mesh can transmit satisfy the following relationship: L / λ<1, where L is the length of the longest side of the mesh, and λ is the working wavelength of the center frequency point of the preset working frequency band.

[0010] In one embodiment, L / λ < 0.05, and / or W / L < 1.

[0011] In one embodiment, 0.05mm≤W≤0.5mm, 0.3mm≤L≤3mm.

[0012] In one embodiment, the conductive film further comprises a non-removable film region, which is circumferentially arranged around the removable film region. The ends of the grid lines extend to the critical position between the non-removable film region and the removable film region, and the ends of each two adjacent grid lines extending to the critical position are separated from each other by the conductive film.

[0013] In one embodiment, the grid lines include a plurality of first grid lines and a plurality of second grid lines; the plurality of first grid lines are arranged side by side with intervals, the plurality of second grid lines are arranged side by side with intervals, and the first grid lines and the second grid lines intersect each other; the opposite ends of the first grid lines extend to the critical positions, and the opposite ends of the second grid lines extend to the critical positions; the critical lines formed by the critical positions include one or more arbitrary combinations of straight line segments, curved segments, and broken line segments.

[0014] In one embodiment, the critical line includes an S-shaped curve segment.

[0015] In one embodiment, the mesh size of the mesh grid increases from its center outwards, and the mesh density decreases from its center outwards.

[0016] In one embodiment, the mesh grid includes a plurality of unit areas arranged nested sequentially along its center to the periphery, and the mesh density of the plurality of unit areas decreases from the inside to the outside of the unit areas.

[0017] In one embodiment, two adjacent unit regions satisfy the following relationship:

[0018] W1 / W2≥1; and / or, 0.2≤L1 / L2<1;

[0019] Wherein, W1 is the grid line width of the unit area close to the center position, and W2 is the grid line width of the unit area far from the center position;

[0020] L1 is the spacing between two adjacent grid lines in the cell area close to the center position, and L2 is the spacing between two adjacent grid lines in the cell area far from the center position.

[0021] On the other hand, this application also provides an article of manufacture comprising the glass described above.

[0022] In the aforementioned glass and articles, the film removal area is formed with a mesh grid. The conductive film corresponding to the grid lines is removed, while the parts corresponding to the mesh openings are not removed. Thus, the conductive film in the film removal area is not completely removed, but partially removed. The conductive film at each mesh opening in the film removal area is not removed, forming multiple independent units that are mutually insulated. Furthermore, on the one hand, electromagnetic waves of the preset operating frequency band can pass smoothly through the film removal area with low transmission loss and without affecting the normal signal transmission and reception functions; on the other hand, only a small amount of conductive film is removed in the film removal area, leaving a large area of ​​conductive film that can still effectively perform its various functions such as dimming and reflecting infrared rays; in addition, compared with the complete film removal method, the color difference between the film removal area and the non-film removal area can be reduced, thus eliminating the need to use lace to cover the film removal area as in related technologies, reducing costs, and not obstructing the field of view. Attached Figure Description

[0023] Figure 1 This is a structural diagram of a windshield according to an embodiment of the related art.

[0024] Figure 2 This is a structural diagram of a windshield according to another embodiment of the related art.

[0025] Figure 3 This is a structural diagram of a windshield as an embodiment of the present application.

[0026] Figure 4 This is a structural diagram of the film removal process in glass according to an embodiment of this application.

[0027] Figure 5 This is a diagram of the film removal structure in glass according to another embodiment of this application.

[0028] Figure 6This is a structural diagram of the film removal process in glass according to another embodiment of this application.

[0029] Figure 7 This is a structural diagram of the film removal process in glass according to another embodiment of this application.

[0030] Figure 8 The graph shows the variation of transmission loss as a function of frequency for different glass configurations.

[0031] 10. Glass; 11. Removal area; 12. Non-removal area; 13. Lace.

[0032] 20. Transparent body; 30. Conductive film; 31. Film removal area; 311. Mesh grid; 3111. Grid line; 31111. First grid line; 31112. Second grid line; 3112. Mesh hole; 312. Unit area; 3121. First unit area; 3122. Second unit area; 32. Non-film removal area. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] As described in the background section, please refer to [link / reference]. Figure 1 and Figure 2 In related technologies, to facilitate radio wave transmission, the conductive film in the film removal area 11 is completely removed, rendering the film removal area 11 unable to perform the various functions that the conductive film itself can provide, such as dimming and reflecting infrared rays. Taking the conductive film's function of reflecting infrared rays as an example, the lace 13's effect in blocking infrared rays is poor. Therefore, when sunlight shines on the film removal area 11, infrared rays will pass through, causing the temperature inside the vehicle to rise. Furthermore, the lace 13 not only covers the film removal area 11 but also extends outward from the film removal area 11 to the non-film removal area 12 of the glass, resulting in a large area occupied and severely obstructing the view of the occupants inside the vehicle.

[0035] Based on this, this application provides a glass and article that can easily transmit electromagnetic waves, has small color difference, prevents rapid heating, and does not obstruct the field of vision.

[0036] One embodiment of this application provides an article of manufacture comprising glass.

[0037] For example, the articles also include any one or a combination of display cases, building windows and curtain walls, vehicles, ships, locomotives, human-computer interaction, electrical appliances, and information kiosks.

[0038] Specifically, this embodiment uses a vehicle as an example, but it is not limited to this and can be configured with other structural forms according to actual needs. Optionally, the vehicle includes, but is not limited to, automobiles, buses, trains, etc.

[0039] When the product is applied to a vehicle, since the vehicle has a sunroof, side windows, rear window, and windshield, the glass used in the embodiments of this application can be used for all of these components. Therefore, the glass in this application can be arranged in a variety of locations, covering a large area, which can meet the communication needs between antennas in different locations inside the vehicle and the outside, thereby improving the vehicle's performance.

[0040] In one specific embodiment, the glass provided in this application will be specifically described using a windshield as an example, but this does not constitute a limitation on this application. It is understood that the glass of this application can also be applied to various other products.

[0041] Please see Figure 3 For example, the glass includes a light-transmitting body 20 and a conductive film 30. The conductive film 30 is connected to the light-transmitting body 20.

[0042] The light-transmitting body 20 includes, but is not limited to, single-layer glass or laminated glass, etc., which are not limited here.

[0043] In one embodiment, the light-transmitting body 20 can be a single-layer glass plate, including but not limited to ordinary glass or tempered glass. The conductive film 30 can be connected to any side of the single-layer glass, preferably arranged on the inner side of the single-layer glass plate, which is the side of the single-layer glass plate facing the internal environment. Of course, the light-transmitting body 20 can also be composed of at least two layers of glass plates stacked together. In other words, the light-transmitting body 20 is a laminated glass.

[0044] Specifically, this embodiment uses double-laminated glass as an example, but it is not limited to this. The laminated glass includes a first glass plate, an adhesive layer, and a second glass plate stacked sequentially. The first glass plate has a first side and a second side facing away from each other, and the second glass plate has a third side and a fourth side facing away from each other, with the second side and the third side opposite to each other. The first side faces the external environment, which is the outer side of the light-transmitting body 20. The fourth side faces the internal environment, which is the inner side of the light-transmitting body 20. The interior of the light-transmitting body 20 refers to the area on the light-transmitting body 20 corresponding to the first side and the fourth side, specifically, for example, the second side, the third side, or the adhesive layer. The conductive film 30 can be arranged on the first side, the second side, the third side, or the fourth side, preferably on the second side, the third side, or the fourth side.

[0045] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "inner" and "outer" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0046] Optionally, the adhesive layer may be made of polyvinyl butyral (PVB), polycarbonate (PC), sound-insulating PVB, light-shielding PVB, heat-controlling PVB, ethylene vinyl acetate (EVA), thermoplastic polyurethane (TPU), ionomers, thermoplastic materials, polybutylene terephthalate (PBT), polyethylene vinyl acetate (PET), polyethylene naphthalate (PEN), polyvinyl chloride (PVC), polyvinyl fluoride (PVF), polyacrylate (PA), polymethyl methacrylate (PMMA), polyurethane (PUR), and combinations thereof.

[0047] The conductive film 30 includes a film removal area 31. When the communication equipment is aligned with the film removal area 31, electromagnetic waves can smoothly pass through the film removal area 31 and the light-transmitting body 20 for transmission. The electromagnetic wave loss is small, and it is minimally affected by the conductive film 30, enabling normal signal transmission and reception. Optionally, the communication equipment includes, but is not limited to, at least one or any combination of broadcast band equipment, V2X, GNSS, and ETC.

[0048] Optionally, the film removal area 31 may include, but is not limited to, one, two, or any other arbitrary number. In this embodiment, there are specifically two film removal areas 31, located on the left and right sides of the front windshield rearview mirror, respectively. The communication device can be installed in either of the two film removal areas 31 as needed. In this case, the installation of an ETC antenna device on the film removal area of ​​the transparent body can be used for illustration.

[0049] It is understandable that if the conductive film 30 in the film removal area 31 is completely removed, it will not only cause color difference problems, but also cause a rapid temperature rise due to the inability to block infrared rays. Based on this, for example, the film removal area 31 in this embodiment is formed with a mesh grid 311. The specific shape of the mesh grid 311 is not limited and can be set according to actual needs. The overall outline shape of the mesh grid 311 is, for example, rectangular, including squares and rectangles, or rhomboid, or elliptical or circular, and other regular shapes and various irregular shapes. Figure 4 The rectangle shown can also be set as follows: Figure 5 The rhombus shown can also be set to various other regular and irregular shapes, without limitation here.

[0050] Specifically, all portions of the conductive film 30 corresponding to the grid lines 3111 of the mesh grille 311 are removed. Figure 4 or Figure 5 The black lines in the image show that the conductive film 30 at the locations of the black lines has been completely removed. The methods for removing the conductive film 30 include, but are not limited to, laser etching along the grid lines 3111 to remove the metal film layer, or chemical etching to obtain the mesh grid 311. Furthermore, the portions of the conductive film 30 corresponding to the mesh openings 3112 of the mesh grid 311 are not removed, thus remaining in the light-transmitting body 20. The mesh openings 3112 are... Figure 4 or Figure 5 The blank areas formed by the grid lines 3111 in the mesh grid 311 shown are not removed from the conductive film 30 at the mesh openings 3112.

[0051] For example, let the length of the maximum side of the circumscribed rectangle of mesh 3112 be D, and let the line width of grid line 3111 be W, where W / D < 1. It should be noted that the circumscribed rectangle is a hypothetical shape, referring to the smallest rectangle that can completely enclose (tightly fit) a given two-dimensional shape or outline. The boundary of any regular or irregular shape can be formed by extending dashed lines from the corners with the maximum distance, thus creating a circumscribed rectangle.

[0052] Among them, the mesh 3112 includes, but is not limited to, regular shapes such as polygons, circles, and ellipses, as well as various other irregular shapes, and is not limited here.

[0053] In this application, specifically when the mesh 3112 is a polygon, the polygon may be, for example, a square, a rectangle, a triangle, a pentagon, etc. Furthermore, the length D of the maximum side length of the circumscribed rectangle of the mesh 3112 is greater than or equal to the maximum side length L of the mesh 3112.

[0054] In the aforementioned glass, the decoction area 31 has a mesh grid 311. The conductive film 30 is removed at the locations corresponding to the grid lines 3111, but not at the locations corresponding to the mesh openings 3112. Thus, the conductive film 30 in the decoction area 31 is not completely removed, but only partially removed. The conductive film 30 at each mesh opening 3112 in the decoction area 31 is not removed, forming multiple independent units that are mutually insulated. Furthermore, on the one hand, electromagnetic waves of the preset operating frequency band can smoothly pass through the decoction area 31 with low transmission loss, without affecting the normal signal transmission and reception functions; on the other hand, only a small amount of conductive film 30 is removed in the decoction area 31, leaving a large area of ​​conductive film 30 in the decoction area 31, which can still effectively perform its various functions such as dimming and reflecting infrared rays; in addition, compared with the complete decoction method, the color difference between the decoction area 31 and the non-decoction area 32 can be reduced, thus eliminating the need to use a lace-covered decoction area 31 as in related technologies, reducing costs, and without obstructing the field of view.

[0055] For example, the mesh 3112 is set as a polygon, specifically a triangle, quadrilateral, or pentagon. In this embodiment, the mesh 3112 is specifically a square or rectangle.

[0056] Optionally, the electromagnetic waves in the preset operating frequency band that can be transmitted by the mesh 3112 and the film removal area 31 satisfy the following relationship: L / λ < 1, where L is the length of the longest edge of the mesh 3112, and λ is the operating wavelength of the center frequency point of the preset operating frequency band. Please refer to Figure 4 , Figure 4 When the mesh 3112 shown in the diagram is a square hole, all sides of the square hole are of equal length, and L is the distance between any two adjacent mesh lines 3111.

[0057] When L / λ > 1, electromagnetic waves of the preset operating frequency band will be unable to pass through the film removal zone 31. Therefore, in this embodiment, the spacing of the grid lines 3111 is flexibly adjusted according to the preset operating frequency band required by actual needs, thereby adjusting the size of L so that L is less than λ, ensuring that electromagnetic waves of the preset operating frequency band can pass through the film removal zone 31 and transmit normally.

[0058] Optionally, L / λ can be 0.9, 0.85, 0.8, 0.75, 0.7, 0.65, 0.6, 0.55, 0.5, 0.45, 0.4, 0.35, 0.3, 0.2, 0.1, 0.05, 0.03, 0.02, etc. In this way, the mesh 3112 can transmit and receive electromagnetic signals normally within the preset operating frequency band.

[0059] Specifically, L / λ < 0.5, further, L / λ < 0.3, and even further, L / λ < 0.05. Thus, when L / λ is small, electromagnetic waves in the preset operating frequency band can be transmitted more effectively, improving the transmission performance of electromagnetic wave signals.

[0060] Of course, when L / λ is too small, for example, L / λ < 0.02, it will lead to an increase in the amount of material of the removed conductive film 30 in the film removal area 31, which will weaken the infrared reflection ability, cause the temperature inside the vehicle to rise, and make the color difference relatively obvious. Therefore, in this embodiment, L / λ ≥ 0.02.

[0061] For example, W / L < 1. Thus, the line width W of the grid line 3111 is less than the length L of the side of the largest hole in the mesh 3112, allowing for a larger area of ​​the conductive film 30 that has not been removed within the film removal area 31, thereby ensuring the infrared reflectivity. Optionally, W / L = 0.9, 0.8, 0.7, 0.6, 0.5, or 0.3, etc., and can be flexibly adjusted and set according to actual needs; no limitation is imposed here.

[0062] Optionally, 0.05mm≤W≤0.5mm, where W=0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm or 0.5mm, etc., which can be flexibly adjusted and set according to actual needs.

[0063] Optionally, 0.3mm≤L≤3mm, where L=0.3mm, 0.4mm, 0.5mm, 0.8mm, 1mm, 1.3mm, 1.5mm, 2mm or 3mm, etc., can be flexibly adjusted and set according to actual needs.

[0064] For example, the conductive film 30 also includes a non-removal region 32. The non-removal region 32 is arranged circumferentially around the removal region 31. Specifically, as... Figure 3 As shown, the coil indicated by arrow K is the boundary between the decoating area 31 and the non-decoating area 32. The area within the coil is the decoating area 31, which can be used to install communication equipment such as ETC. The area outside the coil is the non-decoating area 32, which covers most of the glass and effectively prevents infrared rays from outside the vehicle from passing through the glass and entering the vehicle.

[0065] Based on the aforementioned embodiment, the ends of the grid lines 3111 extend to the critical position between the non-removed film area 32 and the removed film area 31, and the ends of each adjacent grid line 3111 extending to the critical position are separated from each other by the conductive film 30. Thus, the conductive film 30 is not removed from the entire circumferential portion of the coil indicated by the arrow, but only from the ends of the grid lines 3111 extending to the critical position, thereby reducing the color difference between the non-removed film area 32 and the removed film area 31.

[0066] Specifically, please refer to Figure 3 and Figure 4 The grid 3111 includes multiple first grid lines 31111 and multiple second grid lines 31112. The multiple first grid lines 31111 are arranged side-by-side with intervals, and the multiple second grid lines 31112 are arranged side-by-side with intervals. The first grid lines 31111 and second grid lines 31112 intersect to form a mesh 311. The opposite ends of the first grid lines 31111 and the opposite ends of the second grid lines 31112 extend to critical positions, and the ends of adjacent first grid lines 31111 and adjacent second grid lines 31112 are separated by a conductive film 30. In other words, the ends of each first grid line 31111 are independently arranged and not directly connected by any of the second grid lines 31112; the ends of each second grid line 31112 are independently arranged and not directly connected by any of the first grid lines 31111.

[0067] For example, the critical line formed by the critical position connects the ends of the grid lines located at the critical position in the order of their arrangement. It can also be understood as connecting the ends of the grid lines located at the critical position in the order of their arrangement to obtain the critical line. The critical line is not a real physical structure, but should be understood as a hypothetical line used to explain and describe the arrangement relationship between the ends of the grid lines located at the critical position.

[0068] The critical line includes, but is not limited to, one or more combinations of straight line segments, curved segments, and broken line segments. For a specific embodiment, please refer to... Figure 6 The critical line includes an S-shaped curve segment.

[0069] Please see Figure 3 , Figure 4 and Figure 6 Each of the first grid lines 31111 has two opposite ends. The arrangement of one end of each first grid line 31111 with the same orientation can be the same as or different from the arrangement of the other end with the same orientation; this is not restricted here. The following description uses one end of each first grid line 31111 with the same orientation as an example. For instance, one end of each first grid line 31111 with the same orientation is specifically aligned with each other along the direction of the second grid line 31112, such as... Figure 4 As shown, the critical line formed by connecting one end of each of the first grid lines 31111 with the same orientation includes a straight line segment. Of course, the ends of each of the first grid lines 31111 with the same orientation may not need to be aligned along the direction of the second grid line 31112.

[0070] For example, please refer to Figure 6 For example, taking the second grid line 31112 as a reference line, the relationship between the end of each first grid line 31111 facing the same direction and the reference line is as follows: when the portion protruding from the reference line gradually increases-decreases-increases in a regular pattern, the reference line correspondingly includes a curved segment. Of course, when the portion protruding from the reference line is irregularly arranged, the reference line correspondingly includes a broken line segment. The arrangement of the second grid lines 31112 is similar to that of the first grid lines 31111. Specifically, the ends of each second grid line 31112 facing the same direction are aligned with each other along the direction of the first grid line 31111, or no alignment is required; this is not limited here and can be flexibly adjusted and set according to actual needs.

[0071] It should be noted that the lengths of the various first grid lines 31111 may be the same or different, and they may be straight lines or curves, etc. No restrictions are placed here; they can be flexibly adjusted and set according to actual needs. The second grid line 31112 can be set similarly to the first grid line 31111, and will not be elaborated further here.

[0072] Understandably, the smaller the size and the denser the mesh size 3112 of the decoction area 31, the better the electromagnetic wave transmission effect and the lower the electromagnetic wave transmission loss. However, the color difference between the decoction area 31 and the non-decoction area 32 will also be more obvious. Based on this, please refer to... Figure 7 In this embodiment, the size of the mesh openings 3112 of the mesh grille 311 increases from its center outwards. Furthermore, the mesh opening density 3112 of the mesh grille 311 decreases from its center outwards. The mesh opening density 3112 can be understood as the number of mesh openings 3112 arranged per unit area. The center position is as follows... Figure 7 The position indicated by arrow Z in the diagram. Thus, due to the relatively dense mesh 3112 at the center of the film removal area 31, the electromagnetic wave transmission effect is best at the center of the film removal area 31; furthermore, the mesh 3112 density decreases from the center of the film removal area 31 towards the periphery, making the color difference transition from the non-film removal area 32 to the film removal area 31 smoother, the color difference between adjacent areas smaller, and the overall effect better.

[0073] Please see Figure 7 For example, the mesh grid 311 includes a plurality of nested unit areas 312 arranged sequentially from its center to its periphery. The mesh size 3112 of the plurality of unit areas 312 decreases from the inside to the outside of the unit areas 312. The number of unit areas 312 is not limited and may include, but is not limited to, two, three, four, or more. In this embodiment, two unit areas 312 are specifically described as a first unit area 3121 and a second unit area 3122. The second unit area 3122 is arranged circumferentially around the first unit area 3121. The mesh size 3112 of the first unit area 3121 is greater than that of the second unit area 3122. The mesh size 3112 of the first unit area 3121 is smaller than that of the second unit area 3122. The first unit region 3121 has a higher mesh density 3112, which is more conducive to the transmission of electromagnetic waves. Therefore, the communication device is preferably aligned with the first unit region 3121 and, for example, bonded together. The second unit region 3122 has a relatively lower mesh density 3112, which helps to reduce the color difference between it and the non-removed film region 32.

[0074] In this example, the communication device uses an antenna. Optionally, the antenna includes a body. Of course, the antenna may also include a housing, with the body housed within the housing, which protects the body. The body is installed at the center of the decoction area 31, specifically, for example, in the first unit area 3121. Alternatively, it can be understood that the projection of the body along the thickness direction of the glass is located at the center of the decoction area 31, and the peripheral portion of the decoction area 31, for example, the second unit area 3122, is arranged circumferentially around the aforementioned projection. The peripheral portion of the decoction area 31 allows some electromagnetic waves to pass through, providing a visual transition effect.

[0075] For example, two adjacent cell regions 312 satisfy the following relationship: W1 / W2≥1. Wherein, W1 is the line width of the grid line 3111 of the cell region 312 closer to the center, and W2 is the line width of the grid line 3111 of the cell region 312 farther from the center.

[0076] Optionally, W1 / W2 = 1, 1.1, 1.2, 1.5, or 2, etc., which can be flexibly adjusted and set according to actual needs, and are not limited here. Because the grid lines 3111 of the unit area 312 near the center have a larger line width, electromagnetic waves in the unit area 312 near the center can pass through more easily, resulting in better transmission performance. The grid lines 3111 of the unit area 312 far from the center have a smaller line width, which reduces the color difference with the non-removed film area 32, making the transition of color difference from the non-removed film area 32 to the removed film area 31 smoother.

[0077] For example, two adjacent cell regions 312 satisfy the following relationship: 0.2≤L1 / L2<1. Where L1 is the distance between any two adjacent grid lines 3111 of cell region 312 close to the center, and L2 is the distance between any two adjacent grid lines 3111 of cell region 312 far from the center.

[0078] Optionally, L1 / L2 can be 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9, etc. The specific value can be flexibly adjusted and set according to actual needs, and no limit is imposed here.

[0079] To verify the low transmission loss of the glass in this application, different glass configurations are provided for verification. These different configurations include coated glass, uncoated glass, and the glass according to an embodiment of this application. Specifically, the decoating region 31 of the glass in this application adopts the following... Figure 4 Taking the mesh grille 311 shown as an example, the conductive film is a heat-insulating film with a line width W=0.2mm and L=1.8mm. The transmission loss of electromagnetic waves in the ETC band was tested on three glass configurations with different settings, and the results are as follows... Figure 8 The graph shows the transmission loss versus frequency curves for different glass configurations. Figure 8It can be seen that the transmission loss of coated glass is above 20dB, while the transmission loss of the decoated area 31 of the glass in this application is within 10dB, which is comparable to the transmission loss of ordinary uncoated glass, and it has strong electromagnetic wave transmission capability.

[0080] Furthermore, the overall transmittance of the three different glass configurations was tested, and the results are shown in the table below:

[0081]

[0082] As shown in the table above, the solar transmittance (TTS) of the glass in this application is very close to that of the coated glass, only 3.68% higher; compared with the uncoated glass, the solar transmittance (TTS) is much smaller. This demonstrates that the partial coating has a strong effect in blocking solar energy while also possessing strong electromagnetic wave transmission capability.

[0083] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0084] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0085] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A type of glass, characterized in that, The glass comprises: Translucent body; and A conductive film is connected to the light-transmitting body. The conductive film has a film removal area, which is formed with a mesh grid. All parts of the conductive film corresponding to the grid lines of the mesh grid are removed, while the parts of the conductive film corresponding to the mesh openings of the mesh grid are retained in the light-transmitting body. Wherein, the length of the maximum side of the circumscribed rectangle of the mesh is set as D, and the line width of the grid line is set as W, where W / D < 1.

2. The glass according to claim 1, characterized in that, The mesh is polygonal, and the electromagnetic waves of the preset working frequency band that the mesh can transmit satisfy the following relationship: L / λ<1, where L is the length of the longest side of the mesh, and λ is the working wavelength of the center frequency point of the preset working frequency band.

3. The glass according to claim 2, characterized in that, L / λ < 0.05, and / or W / L < 1.

4. The glass according to claim 2, characterized in that, 0.05mm≤W≤0.5mm, 0.3mm≤L≤3mm.

5. The glass according to claim 1, characterized in that, The conductive film also has a non-removable film area, which is arranged circumferentially around the removable film area. The ends of the grid lines extend to the critical position between the non-removable film area and the removable film area, and the ends of each two adjacent grid lines extending to the critical position are separated from each other by the conductive film.

6. The glass according to claim 5, characterized in that, The grid lines include a plurality of first grid lines and a plurality of second grid lines; the plurality of first grid lines are arranged side by side with intervals, the plurality of second grid lines are arranged side by side with intervals, and the first grid lines and the second grid lines intersect each other; the opposite ends of the first grid lines extend to the critical positions, and the opposite ends of the second grid lines extend to the critical positions; the critical lines formed by the critical positions include one or more of the following: straight line segments, curved segments, and broken line segments.

7. The glass according to claim 6, characterized in that, The critical line includes an S-shaped curve segment.

8. The glass according to claim 1, characterized in that, The mesh size of the mesh grid increases from its center outwards, while the mesh density decreases from its center outwards.

9. The glass according to claim 8, characterized in that, The mesh grid includes multiple unit areas arranged nested sequentially along its center to the periphery, and the mesh density of the multiple unit areas decreases from the inside to the outside of the unit areas.

10. The glass according to claim 9, characterized in that, Two adjacent unit regions satisfy the following relationship: W1 / W2≥1; and / or, 0.2≤L1 / L2<1; Wherein, W1 is the grid line width of the unit area close to the center position, and W2 is the grid line width of the unit area far from the center position; L1 is the spacing between two adjacent grid lines in the cell area close to the center position, and L2 is the spacing between two adjacent grid lines in the cell area far from the center position.

11. An article characterized in that, The article comprises the glass as described in any one of claims 1 to 10.

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