Transparent antenna module and method of manufacturing the same

Abstract

The method for manufacturing a transparent antenna module includes: a mask pattern forming step of forming a mask pattern for patterning an antenna on a glass or a transfer substrate; an antenna pattern forming step of forming an antenna pattern on the glass or the transfer substrate so that the antenna pattern is interposed between the mask patterns; and a mask pattern removal step of removing the mask pattern from the glass or the transfer substrate such that only the antenna pattern is disposed on the glass or the transfer substrate.

Description

Technical Field

[0001] The present invention relates to a transparent antenna module. More specifically, it relates to a transparent antenna module configured on a vehicle glass and a method of manufacturing the same. Background Art

[0002] Transparent antenna modules are not easily visible to users due to the high transmittance of the materials and antenna patterns. However, in practice, when a transparent antenna module is installed on the appearance of products such as vehicle glass, building glass, and front display panels, the outline of the antenna module terminal is visible to the naked eye. This is not caused by the transmittance of the antenna itself, but by the edges of the substrate material or protective layer material used in the module, which allows the outline of the antenna module terminal to be recognized. This is because the outer contour of the material is determined by the limited substrate area, pattern area, or protective layer area, and it is inevitable that the outline of this end is detected by the user's eyes.

[0003] To solve such a problem, the present invention directly forms an antenna pattern on the glass surface of the product to be applied without using a transparent substrate and a protective layer in the transparent antenna module. Thereby, detection due to the outer contour edges of the substrate or the protective layer is avoided. In particular, an antenna pattern is formed on one side inside a vehicle double-glass or a display panel to implement an edge-free transparent antenna. Summary of the Invention

[0004] Technical Problem

[0005] The present invention provides a transparent antenna module and a method of manufacturing the same for solving the above problems and other problems.

[0006] Another object of the present invention is to directly form an antenna pattern on the glass surface of the product to be applied without using a transparent substrate and a protective layer in the transparent antenna module.

[0007] Another object of the present invention is to avoid being detected due to the outer contour edges of the substrate or the protective layer. In particular, an antenna pattern is formed on one side inside a vehicle double-glass or a display panel to implement an edge-free transparent antenna.

[0008] Means for Solving the Technical Problem

[0009] To achieve the above or other objects, the method of manufacturing a transparent antenna module according to the present specification includes: a mask pattern forming step of forming a mask pattern for antenna patterning on a glass or a transfer substrate; an antenna pattern forming step of forming the antenna pattern on the glass or the transfer substrate in such a way that the antenna pattern is inserted between the mask patterns; and a mask pattern removing step of removing the mask pattern from the glass or the transfer substrate so that only the antenna pattern is disposed on the glass or the transfer substrate.

[0010] According to an embodiment, it is characterized in that the above antenna pattern forms an antenna area that radiates radio signals. A first width of a mask pattern combined with an outer side end of one side end or the other side end of the above antenna pattern is formed wider than a second width of a mask pattern at a central portion of the above antenna area. A gap between the above mask patterns is formed to decrease at the central portion of the above antenna area, and a line width of a wire mesh line corresponding to a width of the above antenna pattern disposed between the above mask patterns increases at the central portion.

[0011] According to an embodiment, it is characterized in that the above glass is an outer glass disposed in a manner facing the outside of the vehicle. The manufacturing method of the above transparent antenna module further includes: a power supply line connection step of connecting one end of a power supply line to one side of the above antenna pattern; an adhesive layer formation step of forming an adhesive layer so as to cover the above antenna pattern to which the above power supply line is connected; and an inner glass attachment step of attaching an inner glass disposed in a manner facing the inside of the vehicle to an upper region of the above adhesive layer. A second thickness of the above adhesive layer is thicker than a first thickness of the above antenna pattern.

[0012] According to an embodiment, it is characterized in that the manufacturing method of the above transparent antenna module further includes: a power supply line arrangement step of arranging the above power supply line in an upper region of the above inner glass through a side surface of the above adhesive layer and a side surface of the above inner glass; and a cable connection step of connecting the other end of the above power supply line arranged in the upper region of the above inner glass to an RF cable.

[0013] According to an embodiment, it is characterized in that the above glass is an inner glass disposed in a manner facing the inside of the vehicle. The manufacturing method of the above transparent antenna module further includes: a power supply line connection step of connecting one end of a power supply line to one side of the above antenna pattern; an adhesive layer formation step of forming an adhesive layer so as to cover the above antenna pattern to which the above power supply line is connected; and an outer glass attachment step of attaching an outer glass disposed in a manner facing the outside of the vehicle to an upper region of the above adhesive layer. A second thickness of the above adhesive layer is formed thicker than a first thickness of the above antenna pattern.

[0014] According to an embodiment, it is characterized in that the manufacturing method of the above transparent antenna module further includes: a power supply line arrangement step of arranging the above power supply line in an upper region of the above outer glass through a side surface of the above adhesive layer and a side surface of the above outer glass; and a cable connection step of connecting the other end of the above power supply line arranged in the upper region of the above outer glass to an RF cable.

[0015] According to an embodiment, it is characterized in that the above antenna pattern is disposed on the transfer layer of the above transfer substrate. Before the above mask pattern forming step, it further includes a transfer layer forming step of forming the above transfer layer on the above transfer substrate. After the above mask pattern removing step, the above method further includes: an antenna pattern transfer step of transferring the above antenna pattern formed on the above transfer substrate to the glass to be disposed on the vehicle; and a transfer substrate removing step of removing the above transfer substrate from the glass on which the above antenna pattern is transferred.

[0016] According to an embodiment, it is characterized in that the manufacturing method of the above transparent antenna module further includes: a transfer layer removing step of removing the above transfer layer disposed in the upper region of the above antenna pattern.

[0017] According to an embodiment, it is characterized in that the above glass is a cover glass of a display panel. The manufacturing method of the above transparent antenna module further includes: a power supply line connecting step of connecting one end of a power supply line to one side of the above antenna pattern; a first adhesive layer forming step of forming a first adhesive layer so as to cover the above antenna pattern to which the above power supply line is connected; a touch sensor layer forming step of forming a touch sensor layer provided with a touch sensor on the above first adhesive layer; a second adhesive layer forming step of forming a second adhesive layer on the above touch sensor layer; and a display panel attaching step of attaching a display panel on the above second adhesive layer.

[0018] According to an embodiment, it is characterized in that the above glass is an outer glass disposed in a manner facing the outside of the building. The manufacturing method of the above transparent antenna module further includes: a power supply line connecting step of connecting one end of a power supply line to one side of the above antenna pattern; a partition arranging step of forming an adhesive layer so as to cover the above antenna pattern to which the above power supply line is connected or arranging a spacer with a specified height in the boundary region of the inner glass; and an inner glass attaching step of attaching an inner glass disposed in a manner facing the inside of the building in the upper region of the above partition. The second thickness of the above partition is thicker than the first thickness of the above antenna pattern.

[0019] According to an embodiment, it is characterized in that the above glass is an inner glass disposed in a manner facing the inside of the building. The manufacturing method of the above transparent antenna module further includes: a power supply line connecting step of connecting one end of a power supply line to one side of the above antenna pattern; a partition arranging step of forming an adhesive layer so as to cover the above antenna pattern to which the above power supply line is connected or arranging a spacer with a specified height in the boundary region of the above inner glass; and an outer glass attaching step of attaching an outer glass disposed in a manner facing the outside of the building in the upper region of the above partition. The second thickness of the above partition is thicker than the first thickness of the above antenna pattern.

[0020] According to an embodiment, it is characterized in that the above antenna pattern is formed by a metal mesh line of a transparent conductive material disposed on a first axis and a second axis orthogonal to the first axis in an inner region of the antenna element. The above metal mesh line has a predetermined line width W, and the metal mesh lines adjacent to each other on the first axis and the second axis have a separation distance p with a predetermined period. The above first thickness of the antenna pattern formed by the above metal mesh line is formed to be 1 μm or less.

[0021] According to an embodiment, it is characterized in that the above antenna pattern includes a first antenna pattern disposed in an upper central region of the vehicle glass and a second antenna pattern disposed in a side region. In the above antenna pattern forming step, the above first antenna pattern and the above second antenna pattern are simultaneously vapor-deposited on the above vehicle glass. The above first antenna pattern and the above second antenna pattern simultaneously transmit or receive first and second wireless signals of the same frequency band to perform a multiple-input multiple-output (MIMO) operation.

[0022] According to an embodiment, it is characterized in that the above antenna pattern includes a first antenna pattern disposed in an upper central region of the vehicle front windshield and a second antenna pattern disposed in a side region. In the above antenna pattern forming step, the above first antenna pattern is vapor-deposited on a first transfer substrate, and the above second antenna pattern is vapor-deposited on a second transfer substrate. In the above antenna pattern transfer step, the above first antenna pattern formed on the above first transfer substrate and the above second antenna pattern formed on the above second transfer substrate are transferred to the above vehicle front windshield. In the above transfer substrate removing step, the above first transfer substrate and the above second transfer substrate are removed from the above vehicle front windshield. The above first antenna pattern and the above second antenna pattern simultaneously transmit or receive first and second wireless signals of the same frequency band to perform a multiple-input multiple-output (MIMO) operation.

[0023] According to another aspect of the present specification, the transparent antenna module is characterized in that it includes: glass; and an antenna pattern formed to be spaced apart from each other on the above glass at a separation distance with a predetermined period and radiate wireless signals. The above antenna pattern is disposed between mask patterns for performing antenna patterning, and the mask patterns are removed on the above glass, so that the above antenna pattern is spaced apart from each other on the above glass at a separation distance with a predetermined period.

[0024] According to an embodiment, it is characterized in that the above antenna pattern forms an antenna region for radiating radio signals. A first width of a mask pattern combined with an outer side end of one side end or the other side end of the above antenna pattern is formed wider than a second width of a mask pattern at a central portion of the above antenna region. A gap between the above mask patterns is formed to decrease at the central portion of the above antenna region, and a line width of a wire mesh line corresponding to a width of the above antenna pattern disposed between the above mask patterns increases at the central portion.

[0025] According to an embodiment, it is characterized in that the above glass is an outer glass configured to face the outside of the vehicle. The transparent antenna module includes: a power supply line that connects one end to one side of the above antenna pattern to transmit a signal to the above antenna pattern; an adhesive layer configured to cover the above antenna pattern to which the above power supply line is connected; an inner glass configured to face the inside of the vehicle in an upper region of the above adhesive layer; and an RF cable that is connected by welding to a side surface of the above adhesive layer, a side surface of the above inner glass, and the other end of the above power supply line disposed through an upper region of the above inner glass. A second thickness of the above adhesive layer is thicker than a first thickness of the above antenna pattern.

[0026] According to an embodiment, it is characterized in that the above glass is an inner glass configured to face the inside of the vehicle. The transparent antenna module includes: a power supply line whose one end is connected to one side of the above antenna pattern to transmit a signal to the above antenna pattern; an adhesive layer configured to cover the above antenna pattern to which the above power supply line is connected; an outer glass configured to face the outside of the vehicle in an upper region of the above adhesive layer; and an RF cable that is connected by welding to a side surface of the above adhesive layer, a side surface of the above outer glass, and the other end of the above power supply line disposed through an upper region of the above outer glass. A second thickness of the above adhesive layer is thicker than a first thickness of the above antenna pattern.

[0027] According to an embodiment, it is characterized in that the above antenna pattern is disposed on a transfer layer of a transfer substrate. The above glass is a vehicle glass configured to transfer the above antenna pattern formed on the above transfer substrate. The above transfer substrate and the above transfer layer are removed from the above vehicle glass on which the above antenna pattern is transferred, so that the above antenna pattern is disposed on the above vehicle glass and exposed to an external region.

[0028] Advantages of the Invention

[0029] The technical effects of the transparent antenna module and the method for manufacturing the same in this specification are summarized as follows, but are not limited thereto.

[0030] The transparent antenna module of this specification has a structure that eliminates the user's perception caused by the antenna edge and directly forms the antenna pattern on the glass of the product. Thus, when applied to the appearance of application products including communication functions, it has the effect of neither compromising communication performance nor affecting the appearance design.

[0031] In addition, compared with a general transparent antenna module, the structure of the antenna module does not use a substrate or a protective layer, so it has the effect of reducing costs.

[0032] The additional scope to which the present invention can be applied can be clearly understood from the following detailed description. However, those skilled in the art can clearly understand various changes and modifications within the idea and scope of the present invention. Therefore, the detailed description and specific embodiments such as the preferred embodiments of the present invention are only illustrative. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Shows the structure of forming an antenna pattern on a transparent substrate.

[0034] Figure 2 Shows the structure of arranging the antenna pattern on the glass of this specification.

[0035] Figure 3 Is a diagram related to the process of directly transferring the transparent antenna pattern of this specification to glass.

[0036] Figure 4 Is an embodiment of applying the transparent antenna module provided in this specification between double-layer vehicle glasses.

[0037] Figure 5 Is an embodiment of applying the transparent antenna of this specification inside a display panel.

[0038] Figure 6 Is an embodiment of applying the transparent antenna of this specification to the outer contour glass of a building.

[0039] Figure 7 Is an embodiment of applying the transparent antenna of this specification to another form of double-layer glass of a building, namely multi-layer glass.

[0040] Figure 8 Shows a flowchart of the manufacturing method of the transparent antenna of this specification.

[0041] Figure 9 Shows the process of forming an antenna pattern on glass and the transparent antenna module manufactured thereby.

[0042] Figure 10 Shows a flowchart of the manufacturing method of a transparent antenna using the antenna pattern formed on a transfer substrate.

[0043] Figure 11 Shows the process of forming an antenna pattern provided on a transfer substrate and a transparent antenna module manufactured thereby.

[0044] Figure 12 Shows the structure of a vehicle in which the transparent antenna module of the present specification can be configured.

[0045] Figure 13 Shows the structure of a transparent antenna module in which an antenna pattern and a power supply line are connected in a double-glass structure that can be configured in a vehicle.

[0046] Figure 14 Shows a flowchart of a manufacturing method of a transparent antenna module configured on a display panel.

[0047] Figure 15 Shows a flowchart of a manufacturing method of a transparent antenna module configured on the inner side of the outer glass or the inner glass of a building.

[0048] Figure 16 Is a diagram showing a metal mesh pattern embodied in a specific antenna element and a partial region of the metal mesh pattern enlarged.

[0049] Figure 17 Shows a transparent antenna module in which a plurality of antenna structures are formed in different regions of a vehicle windshield. Detailed Description of the Invention

[0050] Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings. Regardless of the reference numerals, the same or similar components are given the same reference numerals, and duplicate descriptions thereof are omitted. In the following description, the suffixes "module" and "unit" of components are given or mixed for convenience of writing the specification, and they do not have a meaning or function of distinguishing each other. In addition, when it is determined that a detailed description of related well-known technologies may obscure the gist of the embodiments disclosed in the present specification, a detailed description thereof will be omitted. The accompanying drawings are provided to facilitate understanding of the embodiments disclosed in the present specification, and the technical idea disclosed in the present specification is not limited to the accompanying drawings, but should be understood to include all changes, equivalents, and substitutes made within the technical idea and technical scope of the present invention.

[0051] Terms including ordinals such as first and second may be used to describe various components, and these components are not limited to such terms. The terms are only used to distinguish one component from another.

[0052] When referring to one component being "coupled" or "connected" to another component, it should be understood that the structural element can be directly coupled or connected to the other component, but there may also be other components between them. Conversely, when referring to one component being "directly coupled" or "directly connected" to another component, it should be understood that there are no other components between them.

[0053] Unless the context clearly indicates otherwise, singular expressions include plural expressions.

[0054] In this application, the terms "comprising" or "having" should be understood to be intended to indicate the presence of the features, numbers, steps, actions, components, parts, or combinations thereof disclosed in this specification, and not intended to preclude the presence or additional possibility of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0055] The electronic devices described in this specification may include mobile phones, smartphones, laptop computers, digital broadcast terminals, PDAs (personal digital assistants), PMPs (portable multimedia players), navigators, slate PCs, tablet PCs, ultrabooks, wearable devices (such as smartwatches, smart glasses, HMDs (head mounted displays)), etc.

[0056] However, those skilled in the art should be able to easily understand that the structure of the embodiments described in this specification is applicable not only to mobile terminals but also to fixed terminals such as digital TVs, desktop computers, digital displays, robots, etc.

[0057] Hereinafter, a transparent antenna module of this specification and a method for manufacturing the transparent antenna module will be described in detail. In recent years, wireless communication technologies have been characterized by ultra-high speed and high-capacity communication. To meet such communication performance, it is necessary to increase the frequency used in communication. That is, from the currently most used 4G LTE communication to the era of 5G, 6G, etc., which means that the frequency used in communication has been increased. When the communication frequency is increased, there are advantages such as improving communication performance and quality such as transmission speed, amount of data transmitted or received. However, there are also disadvantages such as shorter communication distance and increased signal interference. Therefore, in order to utilize only the advantages of high-frequency communication, many additional technologies are required.

[0058] For example, in order to cover the short receiving and transmitting distance of high-frequency communication, more repeaters are required in 5G communication than in 4G communication. In addition, the location of the antenna for transmitting and receiving communication signals needs to be set at a location that is not interfered by surrounding interference objects. In addition, regarding the materials used in high-frequency communication components including antennas, low-loss materials with less signal loss need to be used. The loss on the material caused by the frequency of the high-frequency signal is determined by formula 1.

[0059] [Formula 1]

[0060]

[0061] Signal loss (SIG loss ) and the frequency f, the square root of the dielectric constant ε and the dielectric loss (diel loss ) is proportional to the dielectric constant ε and dielectric loss (diel loss ) is an intrinsic value of the dielectric properties of materials used in high-frequency communication components. In addition, the antenna used for high-frequency communication is preferably attached to the outside of the product rather than being set inside the product to avoid interference such as blocking, absorption, or disappearance of propagation due to the product's external shell or window frame.

[0062] On the other hand, the product trend in recent years for mobile communications, TVs, automobiles, etc. that require communication functions is to require products that meet both high-quality performance and original design. In this regard, from the perspective of communication functions, as mentioned above, in order to give high-performance communication functions, it is desired to apply high-frequency communication functions using higher frequencies to products. On the contrary, in recent years, with the trend of pursuing exquisite and original product designs, various components are avoided as much as possible on the appearance of the product. The technology that has been tried to meet all these requirements is the transparent antenna. Because the transparent antenna can be set on the appearance of the product to minimize the loss of high-frequency communication signals and is not interfered by surrounding interference objects. In addition, the transparent antenna for high-frequency communication can meet the purpose of not damaging the appearance design and not being noticed by the user's naked eye.

[0063] The transparent antenna module of the present specification can be embodied in the display of the above-mentioned electronic device. On the other hand, Figure 1 The structure of forming an antenna pattern on a transparent substrate is shown. In the structure of the transparent antenna module, a transparent substrate 1010a of a transparent material and a conductor, namely an antenna pattern 1100, are formed in a predetermined area on the transparent substrate 1010a. The transparent antenna module has a power supply line capable of transmitting a transmission / reception signal and a protective layer 1040 for protecting the antenna pattern 1100 formed on the antenna pattern 1100.

[0064] Regarding the transparent substrate material, a material with a high transmittance is used to ensure transparency, and a material with a low dielectric constant is used to minimize high-frequency signal loss. As the transparent material of the transparent substrate 1010a, there are PET, COP, etc. In order to transmit or receive high-frequency communication signals, the antenna pattern needs to be designed according to the frequency. Regarding this, the higher the communication frequency, the shorter the wavelength, so the size of the antenna pattern also decreases proportionally. Since the antenna has the function of receiving and transmitting radio waves and transmitting them, a conductor is used. Typically, metal substances such as Cu and Ag are used. Most metal substances are opaque in the visible light region, so the metal antenna pattern is formed in a metal mesh form or a metal grid form. The purpose of the metal mesh form or the metal grid form is to form a pattern with a small line width to reduce visibility and form a transparent conductive pattern that cannot be seen by the user's naked eyes. In addition, in order to protect the antenna pattern 1100, a protective layer 1040 is formed on the antenna pattern 1100. Regarding the material of the protective layer 1040, PET, etc. are used as a high-transmittance material.

[0065] The transparent antenna module configured in this way is not easily visible to the user's naked eyes due to the high transmittance of the material and the antenna pattern. However, when actually installing the transparent antenna module on the appearance of products such as vehicle glass, building glass, and front display panels, the outline of the antenna module terminal is recognized. This is not due to the transmittance of the antenna itself, but the outline of the antenna module terminal is recognized according to the edges such as the substrate material or the protective layer material used in the module. This is because the outer contour edge of the material is determined according to the limited substrate area, pattern area, or protective layer area, and it is inevitable that the outline of this end is detected by the user's naked eyes.

[0066] To solve such problems, in the present invention, instead of using a transparent substrate and a protective layer in the transparent antenna module, the antenna pattern is directly formed on the glass surface of the product to be applied. Thus, it is avoided being detected due to the outer contour edge of the substrate or the protective layer. In particular, an antenna pattern is formed on one side inside the vehicle double-layer glass or the display panel to embody a transparent antenna without edges.

[0067] Figure 1 In the transparent antenna module of (a), the antenna pattern 1100 is formed on the transparent substrate 1010a. A protective layer 1040 for protecting the antenna pattern 1100 is disposed in the upper region of the antenna pattern 1100. In Figure 1 In the transparent antenna module of (b), the structure 1100b for forming the antenna pattern 1100 is formed on the transparent substrate 1010a in an intaglio form in the shape of the antenna pattern 1100. The antenna pattern 1100 is formed between the structures 1100b. A protective layer 1040 for protecting the antenna pattern 1100 is disposed in the upper regions of the antenna pattern 1100 and the structure 1100b.

[0068] Figure 1 On the transparent antenna module, there is an outer contour edge formed by regions such as the structure 1100b between the transparent substrate 1010a, the protective layer 1040, and the antenna pattern 1100. Therefore, even if transparent materials are used as the materials for each layer and the structure 1100b is formed to be very thin, the presence of the transparent antenna module can be detected.

[0069] The transparent antenna of the present invention has a structure in which the antenna pattern is directly formed on the glass surface of the product to be applied. Regarding this, Figure 2 The structure of arranging the antenna pattern on the glass in this specification is shown. Refer to Figure 2 In (a) of, the mask patterns 1100c are arranged in the upper region of the glass 300 at intervals from each other. On the other hand, the antenna pattern 1100 is formed on the glass 300 in such a way that the antenna pattern 1100 is inserted between the mask patterns 1100c.

[0070] Refer to Figure 2 In (b) of, this figure shows the structure in which the antenna pattern 1100 is arranged in the upper region of the glass 300 without a transparent substrate or other structures. For this purpose, the mask pattern 1100c is removed from the glass 300 so that only the antenna pattern 1100 is arranged on the glass 300. Here, the glass 300 can be assumed to be the glass on a transparent antenna applicable product, that is, vehicle glass, the front glass of a display, the glass of a building, etc.

[0071] The transparent antenna manufacturing process of this specification can also be applied to display panels of small electronic devices such as mobile devices. It is directly formed on one surface of the glass used in the electronic device by using an antenna pattern mask and using physical vapor deposition or chemical vapor deposition or printing methods. On the other hand, when the size of the transparent antenna applicable product such as vehicle glass or building glass is large, the antenna pattern is first formed through the above process by a transfer substrate. Then, it is transferred to the glass of the product to which the antenna is to be applied and attached.

[0072] Figure 3 It is a figure related to the process of directly transferring the transparent antenna pattern of this specification to the glass. As shown in (a) of Figure 3 Prepare a transfer substrate 1010 and form an easily detachable adhesive layer 1020 on the transfer substrate 1010. Then, as shown in (b) of Figure 3 The antenna pattern 1100 is formed on the adhesive layer 1020 by the above method. Then, as shown in Figure 3As shown in (c), it is transferred to the glass substrate 300 on which the antenna pattern 1100 is to be formed. After transferring the antenna pattern 1100 to the glass substrate 300, the transfer substrate 1010 and the adhesive layer 1020 are removed. At this time, in order to transfer the antenna pattern 1100 to the glass 300 and make it adhere, another adhesive layer can also be pre-formed on the glass 300.

[0073] In order to transfer the antenna pattern 1100 from the transfer substrate 1010 to the glass 300, it is necessary to make the adhesive force between the antenna patterns 1100 formed on the adhesive layer 1020 provided on the transfer substrate 1010 relatively low. Specifically, the adhesive force between the antenna patterns 1100 formed on the adhesive layer 1020 should be lower than the adhesive force of the antenna pattern 1100 formed on the glass 300. Alternatively, an adhesive layer 1020 with an adhesive force between the transfer substrate 1010 and the adhesive layer 1020 lower than the adhesive force between the glass 300 and the antenna pattern 1100 can be used. It is also possible to transfer the adhesive layer 1020 and the antenna pattern 1100 together from the transfer substrate 1010 to the glass 300.

[0074] At this time, as shown in Figure 3 (d), it is necessary to remove the adhesive layer 1020 transferred to the glass 300 together with the antenna pattern 1100. After that, as shown in Figure 3 (e), finally, the antenna pattern 1100 directly formed on the glass 300 of the applicable product can be realized. As the transfer substrate 1010, a PET film substrate or ordinary glass can be used. In addition, the adhesive layer 1020 used in the transfer can be embodied as a thermal release film or a laser release film, etc.

[0075] However, the antenna pattern forming method, transfer method, adhesive layer material, etc. described in the present invention are an example for directly forming an antenna pattern on glass, and are not limited to the transfer technology of the present invention. As the material for the antenna pattern, a metal material with high conductivity is used. For example, there are Ag, Cu, Al, Au, etc. At this time, the antenna pattern is formed in a metal mesh shape with a narrow line width and a wide line interval so as not to be visible to the naked eye of the user. In addition, as the antenna pattern, in addition to the case where the metal material is formed in a mesh shape, a transparent conductive material can also be used. Different from the metal material, the transparent conductive material has the characteristics that both the transmittance and the conductivity are above a specified value. Therefore, even if the antenna pattern is not formed in a mesh shape, a transparent antenna can be manufactured.

[0076] Figure 4This is an embodiment in which the transparent antenna module disclosed in this specification is applied between the double-pane glass for vehicles. The double-pane glass for vehicles is made into a double-layer structure in which the outer glass 320 and the inner glass 310 overlap. An adhesive 1020 is placed between the outer glass 320 and the inner glass 310 and fixed to make the double-pane glass. As the adhesive 1020 for pasting two pieces of glass, PVB (Polyvinyl Butiral) can be used, but it is not limited thereto and can be changed according to the application.

[0077] Figure 4 For the transparent antenna module of (a), an antenna pattern 1100 is directly formed on the inner surface of the inner glass 310 of the double-pane glass 300. Figure 4 For the transparent antenna module of (b), an antenna pattern 1100 is directly formed on the inner surface of the outer glass 320 of the double-pane glass 300. Since the antenna pattern 1100 of the transparent material uses a metal conductor, it has a mesh-shaped pattern and cannot be recognized by the naked eye of people. The line width of the antenna pattern 1100 is set to 2 - 5 um, and the pitch is set to 70 - 150 um, but it is not limited thereto and can be changed according to the application. By directly forming it on the vehicle glass without using a transparent substrate for forming the antenna pattern 1100, the problem of being detected due to the outer contour edge of the antenna transparent substrate can be eliminated.

[0078] As described above, an adhesive 1020 such as PVB is used to attach the inner glass and the outer glass in the double-pane glass for vehicles. Therefore, as shown in the structure of Figure 4 , the antenna pattern 1100 of the transparent material is located between the inner surface of the inner glass 310 or the outer glass 320 and the adhesive 1020, so the adhesive 1020 plays a role in protecting the antenna pattern 1100. Therefore, without using an additional pattern protection layer, the visibility problem of the outer contour area caused by the pattern protection layer used on the transparent antenna can be solved. In this specification, the thickness of the antenna pattern 1100 is designed to be 0.5 um - 2 um, which is a layer significantly thinner than the thickness of the glass 300 or the adhesive 1020 used on the double-pane glass for vehicles, and the visibility problem of the antenna pattern can be solved.

[0079] Figure 5 This is an embodiment in the case of applying the transparent antenna of this specification inside the display panel. The display panel included in products such as smartphones, laptops, and monitors includes an LCD or OLED display unit and a front cover glass as basic components, and includes a touch sensing unit according to the functions of the products. Referring to Figure 5 , the basic structure of the display panel 151 of an electronic device such as a smartphone including a touch sensor is shown.

[0080] Touch sensors are usually located on the LCD or OLED and are laminated with an optical adhesive OCA. A cover glass 300 for pattern protection is provided outside the display, and glass or an optical PET film can be used. The cover glass 300 is adhered to the touch sensor through an adhesive layer 1020 such as OCA.

[0081] Regarding this, the transparent antenna module embodied on the display panel includes a cover glass 300, an antenna pattern 1100, a first adhesive layer 1020a, a touch sensor layer 1030, a second adhesive layer 1020b, and a display panel 151.

[0082] An antenna pattern 1100 such as Figure 2 and Figure 3 is formed on the cover glass 300. A first adhesive layer 1020a is formed to cover the antenna pattern 1100. A touch sensor layer 1030 including a touch sensor is formed on the first adhesive layer 1020a. A second adhesive layer 1020b is formed on the touch sensor layer 1030. The display panel 151 is disposed on the second adhesive layer 1020b.

[0083] When applying the transparent antenna embodied by the antenna pattern 1100 to a structure including the display panel 151, the antenna pattern 1100 is formed on the inner side of the cover glass 300. Alternatively, it can also be applied to any position above the touch sensor layer 1030. The metal area of the touch sensor layer 1030 can be used as the ground layer of the antenna pattern 1100. The touch sensor layer 1030 and the first adhesive layer 1020a also function as a protective layer for the antenna pattern 1100, eliminating the need for an additional transparent antenna substrate material or pattern protective layer, thus solving the visibility problem caused by the edges.

[0084] On the other hand, although high-frequency communication signals such as 5G have strong directivity, due to signal loss caused by interfering objects, they have the disadvantage of short reach distance. Therefore, repeaters need to be set at appropriate intervals. In particular, in order to transmit high-frequency signals from outside the building to the inside, signal loss occurs due to the building outer wall or glass window, etc. Therefore, appropriate means for transmitting signals between indoors and outdoors without loss are required. The building double glazing is formed in a form where two sheet glasses are pasted with an adhesive.

[0085] Regarding this, Figure 6 is an embodiment in which the transparent antenna of this specification is applied to the exterior glass of a building. On the other hand, Figure 7 is another embodiment in which the transparent antenna of this specification is applied to multilayer glass, which is another form of the double glazing of a building.

[0086] Refer to Figure 6(a), an antenna pattern 1100 embodied as a transparent antenna is disposed between an inner glass 310 and an outer glass 320 of a building double-glass. Refer to Figure 6 (b), the antenna pattern 1100 is disposed on the outer glass 320. The adhesive layer 1020 is disposed between the outer glass 320 and the outer glass 310 so as to cover the antenna pattern 1100 disposed on the outer glass 320.

[0087] Refer to Figure 6 , the antenna pattern 1100 is formed on the inner side surface of the outer glass 320. The antenna pattern 1100 may also be formed on the inner side surface of the inner glass 310. The antenna pattern 1100 formed on the inner side surface of the outer glass 320 or the inner glass 310 is protected by the adhesive 1020 for adhering the glasses.

[0088] Refer to Figure 7 (a), an antenna pattern 1100 embodied as a transparent antenna is disposed between an inner glass 310 and an outer glass 320 of a building multi-layer glass. Spacers 1050s are disposed in a boundary region between the inner glass 310 and the outer glass 320. Figure 7 (b) is a structure in which the antenna pattern 1100 is disposed on the inner side surface of the outer glass 320 of the building multi-layer glass. Figure 7 (c) is a structure in which the antenna pattern 1100 is disposed on the inner side surface of the inner glass 310 of the building multi-layer glass.

[0089] Refer to Figure 7 , a structure in which an air layer 1050 is formed by disposing spacers 1050s between the outer glass 320 and the inner glass 310 of the multi-layer glass to improve the heat insulation effect. When forming the antenna pattern 1100 of a transparent material on the multi-layer glass, as shown in Figure 7 (b) or Figure 7 (c), the antenna pattern 1100 is formed on the inner side surface of the outer glass 320 or the inner glass 310. Since the inner side surface of the multi-layer glass is not contaminated externally or physically damaged structurally, there is no need to separately form a protective layer for protecting the antenna pattern 1100.

[0090] Refer to Figures 2 to 7 Regarding the transparent antenna module, the manufacturing method of the transparent antenna of the present specification and the transparent antenna manufactured by the above method will be described. Regarding this, Figure 8 A flowchart showing the manufacturing method of the transparent antenna of the present specification is shown. Figure 9 A process of forming an antenna pattern on glass and a transparent antenna module manufactured thereby are shown.

[0091] Refer to Figure 8 and Figure 9(a) In the mask pattern formation step (S100) of the transparent antenna manufacturing method, a mask pattern 1100c for antenna patterning is formed on the glass 300. The mask patterns 1100c are arranged at intervals in one axial direction. The mask pattern 1100c can be formed as a resin layer structure, but is not limited thereto and can be changed according to the application. Regarding the width of the mask pattern 1100c in one axis, it is formed with different widths considering the evaporation or transfer process and the mask pattern removal process.

[0092] Referring to Figure 8 and Figure 9 (b) In the antenna pattern formation step (S200) of the transparent antenna manufacturing method, an antenna pattern 1100 is formed on the glass 300 in such a way that the antenna pattern 1100 is inserted between the mask patterns 1100c. Through the mask pattern removal step (S300) of the transparent antenna manufacturing method, the mask pattern 1100c is removed from the glass 300 so that only the antenna pattern 1100 is disposed on the glass 300.

[0093] On the other hand, in the mask pattern removal step (S300), the width of the mask pattern 1100c in one axis is determined to be different widths considering the force applied to the mask pattern 1100c and the degree of deformation of the antenna pattern 1100. The first width at one end or the other end of the mask pattern 1100c is formed wider than the second width at the center of the mask pattern 1100c. The antenna pattern 1110 forms an antenna region 1100R that radiates radio signals. The first width of the mask pattern 1100c1 combined with the outside of one end or the other end of the antenna pattern 1110 is formed wider than the second width of the mask pattern 1100c2 at the center of the antenna region 1100R.

[0094] The intervals between adjacent mask patterns 1100c are the same. Thus, the line width of the metal mesh eye lines corresponding to the width of the antenna pattern 1100 disposed between the mask patterns 1100c is formed to be the same. Thus, the visibility is uniformly maintained between the antenna patterns 1100 within the antenna region 1100R on the glass 300. Regarding this, in order to reduce the visibility difference between the dielectric regions adjacent to the antenna region 1100R, stacked metal mesh eye lines are disposed in the adjacent dielectric regions. The first line width of the stacked metal mesh eye lines is formed narrower than the second line width of the antenna pattern 1100.

[0095] On the other hand, the interval between adjacent mask patterns 1100c decreases at the center. As a result, the line width of the metal mesh eyeliner corresponding to the width of the antenna pattern 1100 disposed between the mask patterns 1100c increases at the center. The first line width at one end and the other end of the antenna region 1100R is formed to be narrower than the second line width at the center of the antenna region 1100R. Thereby, the visibility difference between the end of the antenna region 1100R on the glass 300 and the dielectric region adjacent to the end can be reduced. In such a structure, no additional stacked metal mesh eyeliner needs to be disposed in the dielectric region adjacent to the antenna region 1100R.

[0096] On the other hand, the transparent antenna and its manufacturing method of the present specification are configured to transfer the antenna pattern formed on the transfer substrate to the glass. Regarding this, Figure 10 The flowchart showing the manufacturing method of the transparent antenna using the antenna pattern formed on the transfer substrate is shown. Figure 11 The process of forming the antenna pattern provided on the transfer substrate and the transparent antenna module manufactured thereby are shown.

[0097] Refer to Figure 10 and Figure 11 (a) of, a transfer layer 1011 is formed on the transfer substrate 1010. Refer to Figure 8 , Figure 10 and Figure 11 (b) of, through the mask pattern forming step (S100) of the transparent antenna manufacturing method, the antenna pattern 1100 is formed on the transfer layer 1011 of the transfer substrate 1010 in such a manner that the antenna pattern 1100 is inserted between the mask patterns 1100c.

[0098] Refer to Figure 8 , Figure 10 and Figure 11 (c) of, through the mask pattern removing step (S300) of the transparent antenna manufacturing method, the mask pattern 1100c is removed from the transfer layer 1011 so that only the antenna pattern 1100 is disposed on the transfer layer 1011. Refer to Figure 8 , Figure 10 and Figure 11 (d) of, through the antenna pattern transferring step (S310) of the transparent antenna manufacturing method, the antenna pattern 1100 formed on the transfer substrate 1010 is transferred to the glass 300 that can be disposed in a vehicle.

[0099] Refer to Figure 8 , Figure 10 and Figure 11In (e), through the transfer substrate removal step (S320) of the transparent antenna manufacturing method, the transfer substrate 1010 is removed from the glass 300 on which the antenna pattern 1100 is transferred. Further, through the transfer layer removal step (S330), the transfer layer 1011 disposed in the upper region of the antenna pattern 1100 is removed. Regarding this, the glass 300 and the transfer substrate 1010 are disposed in the opposite direction, and then the transfer substrate removal step (S320) and the transfer layer removal step (S330) are performed.

[0100] Refer to Figures 2 to 11 , the transparent antenna manufacturing method includes a mask pattern forming step (S100), an antenna pattern forming step (S200), and a mask pattern removing step (S300). In the mask pattern forming step (S100), a mask pattern 1100c for antenna patterning is formed on the glass 300 or the transfer substrate 1010. The mask pattern 1100c can be removed after antenna patterning is performed on the glass 300 or the transfer substrate 1010.

[0101] In the antenna pattern forming step (S200), the antenna pattern 1100 is formed on the glass 300 or the transfer substrate 1010 in such a manner that the antenna pattern 1100 is inserted between the mask patterns 1100c. In the mask pattern removing step (S300), the mask pattern 1100c is removed from the glass 300 or the transfer substrate 1010 so that only the antenna pattern 1100 is disposed on the glass 300 or the transfer substrate 1010.

[0102] On the other hand, Figure 12 shows the structure of a vehicle equipped with the transparent antenna module of the present specification. Figure 13 shows the structure of a transparent antenna module in which an antenna pattern capable of being disposed in a vehicle double-glass structure is connected to a power supply line.

[0103] Figure 13 In (a), the structure of connecting the power supply line 1100f in the structure in which the antenna pattern 1100 of the transparent antenna is disposed on the inner surface of the inner glass 310 is shown. Figure 13 In (a), the structure of connecting the power supply line 1100f in the structure in which the antenna pattern 1100 of the transparent antenna is disposed on the inner surface of the outer glass 320 is shown. Refer to Figure 13, the antenna pattern 1100 is connected to one end of the power supply line 1100f at the first bonding portion 1111 through ACF (Anisotropic Conductive Film). The other end of the power supply line 1100f is connected to the RF cable 310c at the second bonding portion 1112 by soldering. One end of the antenna pattern 1100 and one end of the power supply line 1100f embodied on the FPCB are combined to form the first bonding portion 1111. The other end of the power supply line 1100f embodied on the FPCB and the inner conductor of the RF cable 310c are combined to form the second bonding portion 1112.

[0104] Referring to Figures 2 to 13 , the glass 300 can be the front windshield 300a of the vehicle, the side window glass 300b, or the rear triangular window 300c disposed in the second area adjacent to the first area where the side window glass 300b is disposed. The second area where the rear triangular window 300c is disposed is formed to be narrower than the first area where the side window glass 300b is disposed. The size of the front windshield 300a is formed to be larger than the size of the side window glass 300b, and the size of the side window glass 300b is formed to be larger than the size of the rear triangular window 300c.

[0105] The glass 300 is the outer glass 320 disposed toward the outside of the vehicle. On the other hand, the manufacturing method of the transparent antenna module includes a power supply line connection step (S400), an adhesive layer formation step (S500), and a glass attachment step (S600). When the antenna pattern 1100 is disposed on the outer glass 320, the glass attachment step (S600) is an inner glass attachment step (S600a).

[0106] In the power supply line connection step (S400), one end of the power supply line 1100f is connected to one side of the antenna pattern 1100. In the adhesive layer formation step (S500), an adhesive layer 1020 is formed so as to cover the antenna pattern 1100 connected to the power supply line 1100f. In the inner glass attachment step (S600a), the inner glass 310 disposed toward the inside of the vehicle is attached to the upper region of the adhesive layer 1020. The second thickness of the adhesive layer 1020 is thicker than the first thickness of the antenna pattern 1100. Thus, the adhesive layer 1020 covers the antenna pattern 1100 to protect and fix the antenna pattern 1100 at a specific position on the glass.

[0107] The manufacturing method of the transparent antenna module further includes a power supply line configuration step (S710) and a cable connection step (S720). In the power supply line configuration step (S710), the power supply line 1100f is arranged in the upper region of the inner glass 310 through the side surface of the adhesive layer 1020 and the side surface of the inner glass 310. In the cable connection step (S720), the other end of the power supply line 1020 arranged in the upper region of the inner glass 310 is connected to the RF cable 310c.

[0108] On the other hand, the glass 300 may be an inner glass 310 arranged in a manner facing the outside of the vehicle. When the antenna pattern 1100 is arranged on the inner glass 310, the glass attachment step (S600) is an outer glass attachment step (S600b).

[0109] In the power supply line connection step (S400), one end of the power supply line 1100f is connected to one side of the antenna pattern 1100. In the adhesive layer formation step (S500), the adhesive layer 1020 is formed so as to cover the antenna pattern 1100 connected to the power supply line 1100f. In the outer glass attachment step (S600b), the outer glass 320 arranged in a manner facing the outside of the vehicle is attached to the upper region of the adhesive layer 1020. The second thickness of the adhesive layer 1020 is formed to be thicker than the first thickness of the antenna pattern 1100. Thus, the adhesive layer 1020 covers the antenna pattern 1100 to protect it and fixes the antenna pattern 1100 at a specific position on the glass.

[0110] In the power supply line configuration step (S710), the power supply line 1100f is arranged in the upper region of the outer glass 320 through the side surface of the adhesive layer 1020 and the side surface of the outer glass 320. In the cable connection step (S720), the other end of the power supply line 1020 arranged in the upper region of the outer glass 320 is connected to the RF cable 310c.

[0111] On the other hand, the antenna pattern 1100 of the transparent antenna module is arranged on the transfer layer 1011 of the transfer substrate 1010. Regarding this, Figure 9 shows the manufacturing method of the transparent antenna module manufactured by the transfer method. Refer to Figures 2 to 9 The transparent antenna manufacturing method further includes a transfer layer formation step (S10) before the mask pattern formation step (S100). In the transfer layer formation step (S10), the transfer layer 1011 is formed on the transfer substrate 1010. The transparent antenna manufacturing method further includes an antenna pattern transfer step (S310), a transfer substrate removal step (S320), and a transfer layer removal step (S330) after the mask pattern removal step (S300).

[0112] In the antenna pattern transfer step (S310), the antenna pattern 1100 formed on the transfer substrate 1010 is transferred to the glass 300 that can be disposed in a vehicle. In the transfer substrate removal step (S320), the transfer substrate 1010 is removed from the glass 300 onto which the antenna pattern 1100 has been transferred. In the transfer layer removal step (S330), the transfer layer 1011 disposed in the upper region of the antenna pattern 1100 is removed.

[0113] As Figure 9 shown, when forming the antenna pattern 1100 on the glass 300 by an evaporation method, the transfer layer formation step (S10), the antenna pattern transfer step (S310), the transfer substrate removal step (S320), and the transfer layer removal step (S330) can be omitted. Therefore, as Figure 10 shown, when forming the antenna pattern 1100 on the glass 300 by a transfer method, the transfer layer formation step (S10), the antenna pattern transfer step (S310), the transfer substrate removal step (S320), and the transfer layer removal step (S330) are also performed. Figure 11 shown, when forming the antenna pattern 1100 on the glass 300 by a transfer method, the transfer layer formation step (S10), the antenna pattern transfer step (S310), the transfer substrate removal step (S320), and the transfer layer removal step (S330) are also performed. Figure 10 shown, when forming the antenna pattern 1100 on the glass 300 by a transfer method, the transfer layer formation step (S10), the antenna pattern transfer step (S310), the transfer substrate removal step (S320), and the transfer layer removal step (S330) are also performed.

[0114] On the other hand, when it is embodied as a size above a specified size, such as the front windshield of a vehicle, in the case where the front windshield cannot be put into the evaporation device, the transfer method of the antenna pattern can be performed. On the other hand, when it is embodied as a size below a specified size, such as the side window glass or the rear triangular window of a vehicle, the evaporation method of the antenna pattern can be performed. As Figure 5 shown, the glass 300 can be the cover glass 300 of a display panel. Regarding this, Figure 14 shows a flowchart of a manufacturing method of a transparent antenna module disposed in a display panel. Referring to Figures 2 to 7 , Figure 8 and Figure 14 , the transparent antenna manufacturing method further includes a power supply line connection step (S400), a first adhesive layer formation step (S500a), a touch sensor layer formation step (S500b), a second adhesive layer formation step (S500c), and a display panel attachment step (S600c).

[0115] In the power supply line connection step (S400), one end of the power supply line 1100f is connected to one side of the antenna pattern 1100. In the first adhesive layer formation step (S500a), the first adhesive layer 1020a is formed so as to cover the antenna pattern 1100 connected to the power supply line 1100f. In the touch sensor layer formation step (S500b), the touch sensor layer 1030 having a touch sensor formed thereon is provided on the first adhesive layer 1020a. In the second adhesive layer formation step (S500c), the second adhesive layer 1020b is formed on the touch sensor layer 1030. In the display panel attachment step (S600c), the display panel 151 is attached on the second adhesive layer 1020b.

[0116] On the other hand, as Figure 6 and Figure 7 shown, the transparent antenna module of this specification is applicable to the glass 300 of a building. Regarding this, Figure 15 a flowchart showing a manufacturing method of the transparent antenna module disposed on the inner surface of the outer glass or the inner glass of a building is shown.

[0117] Referring to Figures 2 to 7 , Figure 8 and Figure 15 , the glass 300 may be the outer glass 320 disposed so as to face the outside of the building. The manufacturing method of the transparent antenna module further includes a power supply line connection step (S400), a partition arrangement step (S510), and a glass attachment step (S600). When the antenna pattern 1100 is disposed on the outer glass 320, the glass attachment step (S600) may be an outer glass attachment step (S600b).

[0118] In the power supply line connection step (S400), one end of the power supply line 1100f is connected to one side of the antenna pattern 1100. In the partition arrangement step (S510), an adhesive layer is formed so as to cover the antenna pattern 1100 to which the power supply line 1100f is connected, or a partition 1050s having a specified height is arranged in the boundary area of the inner glass 310. In the outer glass attachment step (S600b), the inner glass 310 disposed so as to face the inside of the building is attached to the upper region of the partition 1050s. The second thickness of the partition 1050s is formed to be thicker than the first thickness of the antenna pattern 1100, thereby improving the radiation efficiency of the antenna pattern 1100.

[0119] On the other hand, the glass 300 may be the inner glass 310 disposed so as to face the inside of the building. When the antenna pattern 1100 is disposed on the inner glass 310, the glass attachment step (S600) may be an outer glass attachment step (S600a).

[0120] In the power supply line connection step (S400), one end of the power supply line 1100f is connected to one side of the antenna pattern 1100. In the partition arrangement step (S510), an adhesive layer is formed to cover the antenna pattern 1100 to which the power supply line 1100f is connected, or a partition 1050s with a specified height is arranged in the boundary region of the inner glass 310. In the outer glass attachment step (S600a), the outer glass 320 arranged to face the outside of the building is attached to the upper region of the partition 1050s. The second thickness of the partition 1050s is formed to be thicker than the first thickness of the antenna pattern 1100, thereby increasing the radiation efficiency of the antenna pattern 1100.

[0121] On the other hand, in the transparent antenna module of the present specification, the antenna pattern forms a metal mesh pattern composed of metal mesh lines. Regarding this, Figure 16 It is a diagram showing the metal mesh pattern embodied in a specific antenna element and a partial region of the metal mesh pattern enlarged.

[0122] The antenna pattern 1100 of the transparent antenna of the present specification uses a metal mesh pattern of a metal material. As Figure 16 shown in (a) of, the antenna pattern 1100 is patterned into a mesh form and used so as not to be visible to the naked eye. The antenna pattern 1100 is formed by metal mesh lines of a transparent conductive material arranged on the first axis and a second axis orthogonal to the first axis in the inner region of the antenna element. The metal mesh lines of the antenna pattern 1100 have a specified line width W, and the metal mesh lines adjacent on the first axis and the second axis are formed to have a separated distance p with a specified period.

[0123] On the other hand, the antenna conductor, that is, the antenna pattern 1100a, can also be formed into a mesh pattern without using a transparent and highly conductive transparent conductive substance, but by patterning the antenna and using it. Figure 16 (b) of is an embodiment of an antenna pattern formed using a transparent conductive material. The transparent conductive material is silver nanowire, PEDOT:PSS (poly(3,4-ethylenedioxythiophene):polystyrenesulfonic acid), carbon nanotube (CNT), graphene, etc. Since these materials are transparent, the antenna pattern 1100a can be embodied in a way that is not perceptible to the naked eye. When forming the antenna pattern 1100 with a thickness of 1 um or less described later, there is also no perceptible effect caused by the edge, so the antenna pattern 1100a can be similarly applied to the application fields such as the above-described embodiments without forming a mesh pattern.

[0124] Refer to Figure 16In (c), the line width W of the wire mesh eyeliner of the antenna pattern 1100 can be embodied as 2 to 5 μm, but is not limited thereto and can be changed according to the application. The separation distance p, i.e., the pitch, between adjacent wire mesh eyeliners in the first axis and the second axis can be set to 70 to 150 μm, but is not limited thereto and can be changed according to the application. The first thickness of the antenna pattern 1100 through the wire mesh eyeliner can be formed to be 1 μm or less, but is not limited thereto and can be changed according to the application.

[0125] On the other hand, the transparent antenna module of the present specification is formed into a plurality of antenna structures on a vehicle glass, particularly on a front windshield. Regarding this, Figure 17 A transparent antenna module is shown that is formed into a plurality of antenna structures in different regions of the front windshield of a vehicle. Refer to Figure 17 , when the antenna patterns 1100-1 and 1100-2 of the transparent antenna module are disposed between vehicle double-layer glasses, they are disposed at positions such as the upper surface or edge of the vehicle front windshield. Compared with the transparent antenna structure disposed on another substrate, the antenna patterns 1100-1 and 1100-2 have no edges, so they have the effect of not disturbing the driver's line of sight, not affecting the exterior design of the vehicle, and being able to receive communication signals at the same time.

[0126] Refer to Figures 2 to 17 , the antenna pattern 1100 includes a first antenna pattern 1100-1 and a second antenna pattern 1100-2 disposed in a side region. The first antenna pattern 1100-1 is disposed in the upper central region R1 of the vehicle glass 300. The second antenna pattern 1100-2 is disposed in the side region R2 of the vehicle glass 300.

[0127] In the antenna pattern forming step (S300) of the transparent antenna manufacturing method, the first antenna pattern 1100-1 and the second antenna pattern 1100-2 are simultaneously vapor-deposited on the vehicle glass 300. The first antenna pattern 1100-1 and the second antenna pattern 1100-2 manufactured through the vapor deposition process can be the side window glass 300b and the rear triangular window 300c below a specified size of the vehicle. The first antenna pattern 1100-1 and the second antenna pattern 1100-2 simultaneously transmit or receive first and second wireless signals of the same frequency band to perform a multiple-input multiple-output (MIMO) operation. The first antenna pattern 1100-1 and the second antenna pattern 1100-2 simultaneously transmit or receive different signals to increase the communication capacity in vehicle communication.

[0128] On the other hand, in the antenna pattern forming step (S300), the first antenna pattern 1100-1 is vapor-deposited on the first transfer substrate, and the second antenna pattern 1100-2 is vapor-deposited on the second transfer substrate to form a transparent antenna on the vehicle glass. In the antenna pattern transfer step (S310), the first antenna pattern 1100-1 formed on the first transfer substrate and the second antenna pattern 1100-2 formed on the second transfer substrate are transferred to the front windshield 300a of the vehicle.

[0129] In the transfer substrate removing step (S320), the first transfer substrate and the second transfer substrate are removed from the front windshield 300a of the vehicle. In addition, in the transfer layer removing step (S330), the first transfer layer transferred to the first antenna pattern 1100-1 and the second transfer layer transferred to the second antenna pattern 1100-2 can be removed. The first antenna pattern 1100-1 and the second antenna pattern 1100-2 transmit or receive the first wireless signal and the second wireless signal of the same frequency band simultaneously to perform a multiple-input multiple-output (MIMO) operation. The first antenna pattern 1100-1 and the second antenna pattern 1100-2 transmit or receive signals different from each other simultaneously, whereby the communication capacity can be increased in vehicle communication.

[0130] The manufacturing method of the transparent antenna according to one embodiment of the present specification has been described above. Next, with reference to Figures 2 to 17 a transparent antenna module according to one embodiment of the present specification will be described.

[0131] The transparent antenna module 1000 includes a glass 300 and an antenna pattern 1100. The antenna patterns 1100 are arranged on the glass 300 at a separation distance p having a predetermined period, thereby radiating a wireless signal. The antenna patterns 1100 are arranged while being inserted between mask patterns 1100c for antenna patterning. The mask patterns 1100c are removed from the glass 300, so that the antenna patterns 1100 are arranged on the glass 300 at a separation distance p having a predetermined period.

[0132] The glass 300 may be an outer glass 320 arranged to face the outside of the vehicle. The transparent antenna module 1000 may further include a power supply line 1100f, an adhesive layer 1020, an inner glass 310, and an RF cable 310c.

[0133] One end of the power supply line 1100f is connected to one side of the antenna pattern 1100 to transmit a signal to the antenna pattern 1100. The adhesive layer 1020 is arranged to cover the antenna pattern 1100 to which the power supply line 1100f is connected. The inner glass 310 is arranged in the upper region of the adhesive layer 1020 facing the inside of the vehicle. The RF cable 310c is welded to the side surface of the adhesive layer 1020, the side surface of the inner glass 310, and the other end of the power supply line 1100f arranged through the upper region of the inner glass 310. The second thickness of the adhesive layer 1020 is thicker than the first thickness of the antenna pattern 1100.

[0134] The glass 300 is the inner glass 310 arranged facing the inside of the vehicle. The transparent antenna module 1000 further includes a power supply line 1100f, an adhesive layer 1020, an outer glass 320, and an RF cable 310c.

[0135] One end of the power supply line 1100f is connected to one side of the antenna pattern 1100 to transmit a signal to the antenna pattern 1100. The adhesive layer 1020 is arranged to cover the antenna pattern 1100 to which the power supply line 1100f is connected. The outer glass 320 is arranged in the upper region of the adhesive layer 1020 facing the outside of the vehicle. The RF cable 310c is connected by welding to the side surface of the adhesive layer 1020, the side surface of the outer glass 320, and the other end of the power supply line 1100f arranged through the upper region of the outer glass 320. The second thickness of the adhesive layer 1020 is formed to be thicker than the first thickness of the antenna pattern 1100.

[0136] On the other hand, the antenna pattern 1100 of the transparent antenna module 1000 is arranged on the transfer layer 1011 of the transfer substrate 1010. The glass 300 is a vehicle glass arranged for transferring and forming the antenna pattern 1100 on the transfer substrate 1010. The transfer substrate 1010 and the transfer layer 1011 are removed from the vehicle glass 300 on which the antenna pattern 1100 is transferred, so that the antenna pattern 1100 is arranged on the vehicle glass 300 and exposed to the external region.

[0137] Regarding this, when the antenna pattern 1100 is arranged in the double-glass structure, the antenna pattern 1100 is arranged between the inner glass 310 and the outer glass 320. The transfer substrate 1010 and the transfer layer 1011 are removed from the inner glass 310 or the outer glass 320 on which the antenna pattern 1100 is transferred, so that the antenna pattern 1100 is arranged inside the double-glass structure.

[0138] The above has described the transparent antenna module of this specification and the method for manufacturing the transparent antenna module. The technical effects of the transparent antenna module of this specification and the method for manufacturing the transparent antenna module are summarized as follows, but are not limited thereto.

[0139] The transparent antenna module of this specification has a structure that eliminates the user's perception caused by the antenna edge and directly forms the antenna pattern on the glass of the product. Thus, when applied to the appearance of an application product including a communication function, it has the effect of neither impairing the communication performance nor affecting the appearance design.

[0140] In addition, compared with a general transparent antenna module, the substrate or the protective layer is not used in the structure of the antenna module, so it has the effect of reducing costs.

[0141] The additional scope to which the present invention can be applied can be clearly understood from the following detailed description. However, those skilled in the art can clearly understand various changes and modifications within the idea and scope of the present invention. Therefore, the detailed description and such specific embodiments as the preferred embodiments of the present invention are only illustrative.

[0142] Regarding the above-mentioned present invention, in the transparent antenna module and the method for manufacturing the transparent antenna module, the method for designing or manufacturing such a transparent antenna module can be embodied by computer-readable code in a medium recording a program. The computer-readable medium includes all kinds of recording devices storing data readable by a computer system. As the computer-readable medium, for example, there are HDD (Hard Disk Drive), SSD (Solid State Disk), SDD (Silicon Disk Drive), ROM (Read-Only Memory), RAM (Random Access Memory), CD-ROM (Compact Disc Read Only Memory), magnetic tape, floppy disk, optical data storage device, etc. In addition, it can also be embodied in the form of a carrier wave (for example, transmission through the Internet). In addition, the above computer may include the control unit of the terminal. Therefore, the above detailed description is illustrative in all aspects and should not be construed in a limiting sense. The scope of the present invention should be determined according to a reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

Claims

1. A manufacturing method of a transparent antenna module, wherein, Comprising: A mask pattern forming step of forming a mask pattern for antenna patterning on a glass or a transfer substrate; An antenna pattern forming step of forming the antenna pattern on the glass or the transfer substrate in such a manner that the antenna pattern is inserted between the mask patterns; and A mask pattern removing step of removing the mask pattern from the glass or the transfer substrate so that only the antenna pattern is disposed on the glass or the transfer substrate.

2. The method for manufacturing a transparent antenna module according to claim 1, wherein The antenna pattern forms an antenna region for emitting radio signals, A first width of the mask pattern combined with an outer side of one end or the other end of the antenna pattern is formed wider than a second width of the mask pattern at the center of the antenna region, A gap between the mask patterns is formed to decrease at the center of the antenna region, and a line width of a wire mesh line corresponding to a width of the antenna pattern disposed between the mask patterns increases at the center.

3. The method for manufacturing a transparent antenna module according to claim 1, wherein The glass is an outer glass disposed in a manner facing the outside of the vehicle, The method for manufacturing the transparent antenna module further includes: A power supply line connecting step of connecting one end of a power supply line to one side of the antenna pattern; An adhesive layer forming step of forming an adhesive layer so as to cover the antenna pattern to which the power supply line is connected; and An inner glass attaching step of attaching an inner glass disposed in a manner facing the inside of the vehicle to an upper region of the adhesive layer, A second thickness of the adhesive layer is thicker than a first thickness of the antenna pattern.

4. The method for manufacturing a transparent antenna module according to claim 3, wherein The method for manufacturing the transparent antenna module further includes: A power supply line disposing step of disposing the power supply line in an upper region of the inner glass through a side surface of the adhesive layer and a side surface of the inner glass; and A cable connecting step of connecting the other end of the power supply line disposed in the upper region of the inner glass to an RF cable.

5. The method for manufacturing a transparent antenna module according to claim 1, wherein The glass is an inner glass disposed in a manner facing the inside of the vehicle, The method for manufacturing the transparent antenna module further includes: A power supply line connecting step of connecting one end of a power supply line to one side of the antenna pattern; An adhesive layer forming step of forming an adhesive layer so as to cover the antenna pattern to which the power supply line is connected; and An outer glass attaching step of attaching an outer glass disposed in a manner facing the outside of the vehicle to an upper region of the adhesive layer, A second thickness of the adhesive layer is formed thicker than a first thickness of the antenna pattern.

6. The method for manufacturing a transparent antenna module according to claim 5, wherein The method for manufacturing the transparent antenna module further includes: A power supply line disposing step of disposing the power supply line in an upper region of the outer glass through a side surface of the adhesive layer and a side surface of the outer glass; and Cable connection step: Connect the other end of the power supply line disposed in the upper region of the outer glass described above to the RF cable.

7. The manufacturing method of the transparent antenna module according to claim 1, characterized in that: The antenna pattern is disposed in the transfer layer of the transfer substrate. Before the mask pattern forming step, it further includes a transfer layer forming step of forming the transfer layer on the transfer substrate. After the mask pattern removing step, the method further includes: Antenna pattern transfer step: Transfer the antenna pattern formed on the transfer substrate to the glass that can be disposed on the vehicle; and Transfer substrate removing step: Remove the transfer substrate from the glass on which the antenna pattern is transferred.

8. The manufacturing method of the transparent antenna module according to claim 7, characterized in that: The manufacturing method of the transparent antenna module further includes: Transfer layer removing step: Remove the transfer layer disposed in the upper region of the antenna pattern.

9. The manufacturing method of the transparent antenna module according to claim 1, characterized in that: The glass is the cover glass of the display panel. The manufacturing method of the transparent antenna module further includes: Power supply line connection step: Connect one end of the power supply line to one side of the antenna pattern. First adhesive layer forming step: Form a first adhesive layer to cover the antenna pattern to which the power supply line is connected. Touch sensor layer forming step: Form a touch sensor layer provided with a touch sensor on the first adhesive layer. Second adhesive layer forming step: Form a second adhesive layer on the touch sensor layer; and Display panel attaching step: Attach the display panel to the second adhesive layer.

10. The manufacturing method of the transparent antenna module according to claim 1, characterized in that: The glass is the outer glass disposed in a manner facing the outside of the building. The manufacturing method of the transparent antenna module further includes: Power supply line connection step: Connect one end of the power supply line to one side of the antenna pattern. Partition configuration step: Form an adhesive layer in a manner covering the antenna pattern to which the power supply line is connected or dispose a spacer with a specified height in the boundary region of the inner glass; and Inner glass attaching step: Attach the inner glass disposed in a manner facing the inside of the building to the upper region of the partition. The second thickness of the partition is thicker than the first thickness of the antenna pattern.

11. The manufacturing method of the transparent antenna module according to claim 1, characterized in that: The glass is the inner glass disposed in a manner facing the inside of the building. The manufacturing method of the transparent antenna module further includes: Power supply line connection step: Connect one end of the power supply line to one side of the antenna pattern. Partition configuration step: Form an adhesive layer in a manner covering the antenna pattern to which the power supply line is connected or dispose a spacer with a specified height in the boundary region of the inner glass; and Outer glass attaching step: Attach the outer glass disposed in a manner facing the outside of the building to the upper region of the partition. The second thickness of the partition is thicker than the first thickness of the antenna pattern.

12. The manufacturing method of the transparent antenna module according to claim 3, characterized in that, The above antenna pattern is formed by a metal mesh wire of a transparent conductive material, i.e., a transparent conductive material, disposed on the first axis and the second axis orthogonal to the first axis in the inner region of the antenna element. The above metal mesh wire has a specified line width W, and the adjacent metal mesh wires on the first axis and the second axis have a specified periodic separation distance p. The above first thickness of the antenna pattern formed by the above metal mesh wire is formed to be 1 um or less.

13. The manufacturing method of the transparent antenna module according to claim 3, characterized in that, The above antenna pattern includes a first antenna pattern disposed in the upper central region of the vehicle glass and a second antenna pattern disposed in the side region. In the above antenna pattern forming step, the above first antenna pattern and the above second antenna pattern are simultaneously vapor-deposited on the above vehicle glass. The above first antenna pattern and the above second antenna pattern simultaneously transmit or receive first wireless signals and second wireless signals of the same frequency band to perform multiple input multiple output, i.e., MIMO operation.

14. The manufacturing method of the transparent antenna module according to claim 7, characterized in that, The above antenna pattern includes a first antenna pattern disposed in the upper central region of the vehicle front windshield and a second antenna pattern disposed in the side region. In the above antenna pattern forming step, the above first antenna pattern is vapor-deposited on a first transfer substrate, and the above second antenna pattern is vapor-deposited on a second transfer substrate. In the above antenna pattern transfer step, the above first antenna pattern formed on the above first transfer substrate and the above second antenna pattern formed on the above second transfer substrate are transferred to the above vehicle front windshield. In the above transfer substrate removing step, the above first transfer substrate and the above second transfer substrate are removed from the above vehicle front windshield. The above first antenna pattern and the above second antenna pattern simultaneously transmit or receive first wireless signals and second wireless signals of the same frequency band to perform multiple input multiple output MIMO operation.

15. A transparent antenna module, characterized in that, The above transparent antenna module includes: Glass; and An antenna pattern formed to be spaced apart and configured on the above glass at a specified periodic separation distance to radiate a wireless signal. The above antenna pattern is disposed by being inserted between mask patterns for antenna patterning. The above mask pattern is removed on the above glass, so that the above antenna pattern is spaced apart and configured on the above glass at a specified periodic separation distance.

16. The transparent antenna module according to claim 15, characterized in that, The above antenna pattern forms an antenna region that radiates a wireless signal. The first width of the mask pattern combined with the outer side of one end or the other end of the above antenna pattern is formed to be wider than the second width of the mask pattern at the central portion of the above antenna region. The interval between the above-mentioned mask patterns is formed to decrease at the central part of the above-mentioned antenna region, and the line width of the wire mesh eyeliner corresponding to the width of the above-mentioned antenna pattern disposed between the above-mentioned mask patterns increases at the central part.

17. The transparent antenna module according to claim 15, wherein the above-mentioned glass is an outer glass disposed in a manner facing the outside of the vehicle, the transparent antenna module includes: a power supply line that connects one end to one side of the above-mentioned antenna pattern to transmit a signal to the above-mentioned antenna pattern; an adhesive layer disposed to cover the above-mentioned antenna pattern to which the above-mentioned power supply line is connected; an inner glass disposed in an upper region of the above-mentioned adhesive layer in a manner facing the inside of the vehicle; and an RF cable connected by welding to the side surface of the above-mentioned adhesive layer, the side surface of the above-mentioned inner glass, and the other end of the above-mentioned power supply line disposed through the upper region of the above-mentioned inner glass, the second thickness of the above-mentioned adhesive layer is thicker than the first thickness of the above-mentioned antenna pattern.

18. The transparent antenna module according to claim 15, wherein the above-mentioned glass is an inner glass disposed in a manner facing the inside of the vehicle, the transparent antenna module includes: a power supply line whose one end is connected to one side of the above-mentioned antenna pattern to transmit a signal to the above-mentioned antenna pattern; an adhesive layer disposed to cover the above-mentioned antenna pattern to which the above-mentioned power supply line is connected; an outer glass disposed in an upper region of the above-mentioned adhesive layer in a manner facing the outside of the vehicle; and an RF cable connected by welding to the side surface of the above-mentioned adhesive layer, the side surface of the above-mentioned outer glass, and the other end of the above-mentioned power supply line disposed through the upper region of the above-mentioned outer glass, the second thickness of the above-mentioned adhesive layer is thicker than the first thickness of the above-mentioned antenna pattern.

19. The transparent antenna module according to claim 15, wherein the above-mentioned antenna pattern is disposed in a transfer layer of a transfer substrate, the above-mentioned glass is a vehicle glass disposed to transfer the above-mentioned antenna pattern formed on the above-mentioned transfer substrate, the above-mentioned transfer substrate and the above-mentioned transfer layer are removed from the above-mentioned vehicle glass on which the above-mentioned antenna pattern is transferred, so that the above-mentioned antenna pattern is disposed on the above-mentioned vehicle glass and exposed to an external region.

Images