KR20070038759A - Transparent matter cutting off electromagnetic wave and transparent electronic instrument cutting off electromagnetic wave - Google Patents

Abstract

The present invention relates to a transmissive electromagnetic wave shielding material and a transmissive electronic device in which electromagnetic waves are blocked, comprising: a matrix made of a transparent material transmitting visible light and provided with an electromagnetic shielding material; A first matrix comprising a transparent material transmitting or transmitting visible light and having an electromagnetic shielding material dispersed therein; A second matrix made of a transparent material that transmits visible light and coated with a first matrix; A first matrix comprising a transparent material transmitting or transmitting visible light and having an electromagnetic shielding material dispersed therein; An adhesive sheet made of a transparent material that transmits visible light, having a first matrix coated thereon, and having an adhesive force; A second matrix to which the adhesive sheet is adhered; A transparent electromagnetic wave shielding material comprising a body and a body formed of the transparent electromagnetic wave shielding material and forming an enclosure; At least one light emitting device installed inside the body to emit light; By providing a light-transmitting electronic device is cut off the electromagnetic wave, including the electromagnetic wave generated from the printed circuit board of the electronic device, but the visible light emitted from the light emitting element installed inside the electronic device to transmit the electromagnetic wave harmful to the human body At the same time, it can transmit visible light that warns of an abnormal signal inside the electronic device or makes the design of the electronic device beautiful, and can effectively block the electromagnetic wave generated by the electric field and the electromagnetic wave generated by the magnetic field. Electromagnetic wave shielding material and the electromagnetic wave is blocked.

Electromagnetic waves, floodlights, electronic devices, mobile terminals, laptops, displays

Description

Transmitting electromagnetic shielding material and transparent electronic device shielding electromagnetic waves {TRANSPARENT MATTER CUTTING OFF ELECTROMAGNETIC WAVE AND TRANSPARENT ELECTRONIC INSTRUMENT CUTTING OFF ELECTROMAGNETIC WAVE}

1 is a schematic diagram schematically showing the configuration of a transparent electromagnetic wave shielding material according to a first embodiment of the present invention.

Figure 2 is a schematic diagram schematically showing the configuration of a transparent electromagnetic wave shielding material according to a second embodiment of the present invention.

3 is a schematic diagram schematically showing the configuration of a transparent electromagnetic wave shielding material according to a third embodiment of the present invention.

4 is a flow chart illustrating a method of manufacturing the transparent electromagnetic shielding material of FIG.

FIG. 5 is a flow chart illustrating a method of manufacturing the transparent electromagnetic shielding material of FIG.

FIG. 6 is a flowchart illustrating a method of manufacturing the transparent electromagnetic shielding material of FIG. 3. FIG.

7 is a perspective view showing the configuration of a translucent portable terminal in which electromagnetic waves are blocked according to the fourth embodiment of the present invention.

8 is an enlarged fragmentary sectional view taken along the line AA ′ of FIG. 7;

9 is a perspective view showing the configuration of a transmissive display in which electromagnetic waves are blocked according to a fifth embodiment of the present invention;

FIG. 10 is an enlarged fragmentary sectional view taken along line AA ′ of FIG. 9;

11 is a perspective view showing the configuration of a floodlight notebook with the electromagnetic wave blocked according to the sixth embodiment of the present invention.

12 is an enlarged fragmentary sectional view taken along the line AA ′ of FIG. 11;

Explanation of symbols on the main parts of the drawings

11, 21, 31: electromagnetic wave shielding material 12: matrix

22, 32: first matrix 23, 34: second matrix

33: adhesive sheet 100: mobile terminal

110: terminal body 120: folder portion

200: display 210: display body

220: display unit 300: notebook

310: notebook body 320: display unit

111: body 112: circuit board

113: light emitting element

The present invention relates to a transparent electromagnetic shielding material and a transparent electronic device in which electromagnetic waves are blocked. More specifically, the electromagnetic wave generated from a printed circuit board of an electronic device such as a mobile terminal, a display, a notebook, etc. is blocked, The visible light emitted from the installed light emitting element is transmitted to block electromagnetic waves harmful to the human body, and at the same time, the electromagnetic wave shielding which transmits visible light that warns an abnormal signal inside the electronic device or makes the design of the electronic device beautiful. The present invention relates to a light emitting electronic device in which materials and electromagnetic waves are blocked.

With the advent of the high-tech digital era, electronic devices such as mobile communication terminals, notebooks, electronic notebooks, displays, etc. are being widely used in homes, offices and public places.

In recent years, by providing a light emitting device such as an LED (LED) element inside the electronic device, not only to emit a variety of colors to beautify the external aesthetics, but also various colors depending on the function, situation and abnormal state of the electronic device By emitting light, the convenience of the consumer using the electronic device is maximized.

To this end, the exterior material of the electronic device is made of a transparent material that can transmit visible light so that visible light emitted from a light emitting element installed therein can be transmitted to the outside, thereby increasing the value of the product.

However, electromagnetic waves are generated from printed circuit boards and various electronic components inside electronic devices such as mobile communication portable terminals, notebook computers, electronic notebooks, displays, and the like.

Electromagnetic waves such as these affect the operation of other electronic devices, or cause harm to the human body, the problem is getting serious day by day. In particular, the harmful effects caused by electromagnetic waves generated in various electronic devices have been experimentally recognized and established in various countries such as the United States and Europe to establish various environmental regulations for electromagnetic interference (EMI) and electromagnetic compatibility (EMC). Only sales of products satisfying the situation are allowed.

The conventional transparent electromagnetic shielding material that can transmit visible light and block electromagnetic waves is formed by forming a transparent conductive film in the form of a film. As a tempered glass, it was developed by Asahi Glass of Japan and Viratec of the United States. Developed by Sumitomo, Kurary, et al. However, this is mainly based on the principle of shielding by electric fields, and shielding by the action of electric and magnetic fields has not been fully reported.

  As a solution to this, Korean Patent No. 2002-0005325 "Method of manufacturing electromagnetic wave shielding and absorbing material using carbon nanotubes or carbon nanofibers, and electromagnetic wave shielding and absorbing material prepared by the method", has a carbon nanostructure having conductivity The material was dispersed in the matrix to control the electrical conductivity, and the ferrite was dispersed to provide a shielding function based on the magnetic principle. However, the patent shows technical limitations because there is no sufficient report on the matrix material, and in particular, there is no suggestion of an optical concept of transmitting visible light using a matrix of transparent material.

The present invention has been made in view of the above-described problems, the electromagnetic wave generated in the printed circuit board of the electronic device, while blocking the visible light emitted from the light emitting element installed inside the electronic device to transmit, harmful electromagnetic waves to the human body It is an object of the present invention to provide a transparent electromagnetic shielding material through which visible light that transmits a warning signal or an abnormal signal inside an electronic device or makes a design of the electronic device transparent and blocks electromagnetic waves. In particular, an object of the present invention is to provide a transparent electromagnetic shielding material capable of effectively blocking electromagnetic waves generated by an electric field and electromagnetic waves generated by a magnetic field, and a transparent electronic device through which electromagnetic waves are blocked.

In order to achieve the object as described above, the present invention comprises a matrix made of a transparent material that transmits visible light, the electromagnetic wave shielding material; It provides a transparent electromagnetic shielding material comprising a.

This is because the visible light is transmitted by being made of a transparent material, but the electromagnetic wave shielding material is provided to block the electromagnetic wave.

The electromagnetic wave shielding material is made of at least one of a conductive material and a magnetic material. In particular, in order to effectively block the electromagnetic wave generated by the electric field and the electromagnetic wave generated by the magnetic field at the same time, it is preferable that the conductive material and the magnetic material are appropriately combined. Do.

Here, the conductive material is at least one of copper, gold, silver, iron, carbon nanotubes (CNT) or carbon nanofibers (CNF), the magnetic material is nano-sized nickel (Ni), cobalt (Co), iron (Fe) and at least one of an alloy metal, ferrite or nano-sized iron oxide.

In this case, the electromagnetic wave shielding material may be dispersed in the inside of the transparent matrix, may be coated on one side of the matrix, and may be coated on one side of the matrix after being coated on an adhesive film having adhesion.

On the other hand, the present invention comprises a first matrix made of a transparent material that transmits visible light, the electromagnetic wave shielding material is dispersed therein; A second matrix made of a transparent material that transmits visible light and coated with a first matrix; It provides a transparent electromagnetic shielding material comprising a.

This is to disperse the electromagnetic shielding material inside the first matrix, and then coat the first matrix on one surface of the second matrix, which is another transparent material, to provide various configurations such as thickness and size of the transparent electromagnetic shielding material. For sake.

In addition, the present invention comprises a first matrix made of a transparent material that transmits visible light, the electromagnetic shielding material is dispersed therein; An adhesive sheet made of a transparent material that transmits visible light, having a first matrix coated thereon, and having an adhesive force; A second matrix to which the adhesive sheet is adhered; It provides a transparent electromagnetic shielding material comprising a.

In addition, after dispersing the electromagnetic wave shielding material inside the first matrix, the first matrix is coated on the adhesive sheet having an adhesive force, and the adhesive sheet is coated on one surface of the second matrix, which is another transparent material, to transmit light. To provide a variety of configurations, such as the thickness and size of the electromagnetic shielding material.

On the other hand, the present invention, the body is made of a transparent electromagnetic wave shielding material as described above and forming an enclosure; At least one light emitting device installed inside the body to emit light; Provided is a light-emitting electronic device, the electromagnetic wave is configured to block.

This uses a matrix of transparent material with an electromagnetic shielding material, which not only blocks electromagnetic waves but transmits visible light, but also includes a light emitting element inside the electronic device. Anomalies such as short circuits can be detected, and the external aesthetics of electronic devices can be beautiful by using visible light emitted from a light emitting device as a design.

Here, the light emitting device is an LED (LED) device, it is preferable to configure to emit any one or more of white, blue, green or red.

The electronic device may be applied to all kinds of electronic devices that generate electromagnetic waves, such as a portable terminal, a notebook computer, a display, an electronic notebook, and a microwave oven.

Hereinafter, a light transmission electromagnetic wave shielding material according to various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, in describing the present invention, description of already known functions or configurations will be omitted to clarify the gist of the present invention. In addition, in the following description of various embodiments, parts and components performing the same function will be described with the same reference numerals.

1 is a schematic diagram showing the configuration of a transparent electromagnetic shielding material according to a first embodiment of the present invention, Figure 2 is a schematic diagram showing a configuration of a transparent electromagnetic shielding material according to a second embodiment of the present invention 3 is a schematic diagram schematically showing the configuration of a transparent electromagnetic wave shielding material according to a third embodiment of the present invention.

As shown in FIG. 1, the transparent electromagnetic wave shielding material 10 according to the first embodiment of the present invention includes a matrix 12 having a transparent material transmitting visible light and having an electromagnetic shielding material 11 dispersed therein. )

The matrix 12 preferably uses a metal, glass, ceramic or polymer material that optically transmits light in the visible light region, but all materials that transmit visible light are within the scope of the present invention.

The electromagnetic wave shielding material 11 is preferably nickel, copper, gold, silver, iron, cobalt, carbon nanotubes (CNT), carbon nanofibers (CNF), and the like. It is good to use a large amount dispersed. In particular, it is preferable to disperse conductive materials 11a such as copper, gold, silver, iron, carbon nanotubes, and carbon nanofibers in order to block electromagnetic waves by an electric field, and nickel, iron, It is preferable to disperse the magnetic material such as cobalt and the magnetic material 11b such as its alloy metal, ferrite and nano-sized iron oxide. Therefore, in order to effectively block electromagnetic waves caused by an electric field and electromagnetic waves simultaneously, it is preferable to mix and disperse the conductive material 11a and the magnetic material 11b as shown in FIG. 1.

Here, the iron-based oxide of the nano-size is Fe ₂ O ₃ , Fe ₃ O ₄ and the like.

Hereinafter, a method of manufacturing the transparent electromagnetic wave shielding material 10 according to the first embodiment of the present invention will be described in detail.

4 is a flowchart illustrating a method of manufacturing the transparent electromagnetic wave shielding material 10 of FIG. 1.

As shown in Figure 1 and 4, the transparent electromagnetic wave shielding material 10 according to the first embodiment of the present invention, at least one material of glass, metal, ceramic or polymer which is a transparent material dissolved in a solvent state It is produced by sequentially performing the step (S11) of producing a matrix 12 of the dispersion, and the step (S12) of dispersing a predetermined amount of electromagnetic shielding material 11 to maintain transparency in the matrix 12 in a solution state.

In the step of generating the matrix 12 (S11), at least one or more of glass, metal, ceramic, or polymer is dissolved in a solvent to form a matrix 12 in a solution state. In addition, in the case of making a solution by dissolving in a solvent, there is an advantage that can save energy because high temperature is not required.

Here, when using a monomer as a transparent material (Y11), it may further include a step (S13) for the polymerization reaction. The polymerization reaction may be carried out after generating the matrix 12 in a solution state, or may be polymerized after dispersion treatment of the electromagnetic wave shielding material 11 mixed in the matrix 12. That is, it means that it does not depend on the order of a polymerization reaction.

In addition, when using the organic silane as a transparent material (Y12), it may further include the step of performing a hydrolysis reaction (S14). The hydrolysis reaction is also independent of the order as in the polymerization reaction.

In the step (S12) of dispersing the electromagnetic shielding material 11 in the matrix 12 solution, the mixed electromagnetic shielding material 11 should add a predetermined amount such that the matrix 12 maintains transparency. The predetermined amount will be said to be limited to the minimum degree to allow electricity to flow or to maintain the transparency. In the predetermined amount of embodiments, the amount of carbon nanotubes (CNT) is appropriately 0.18 wt% or more and 20 wt% or less.

In the process of dispersing the electromagnetic wave shielding material 11 in the matrix 12 (S12), the conductive material 11a and the magnetic material 11b may be separately dispersed and added, and the conductive material 11a and the magnetic material may be added. The material 11b may also be added by doping. In addition, a small amount of the dispersant may be added, dispersion may be promoted by adding ultrasonic waves, or dispersion may be promoted by adding ultrasonic waves after adding the dispersing agent.

The heat-transferring electromagnetic wave shielding material 10 is completed by performing heat treatment on the dispersion-treated matrix 12 solution as described above.

On the other hand, as shown in Figure 2, the transparent electromagnetic wave shielding material 20 according to the second embodiment of the present invention is made of a transparent material that transmits visible light and the electromagnetic wave shielding material 21 is dispersed therein The first matrix 22 is formed of a transparent material that transmits visible light, and the first matrix 22 is formed of a second matrix 23 coated on one surface thereof.

In this case, the first and second matrices 22 and 23 of the transparent material and the electromagnetic wave shielding material 21 are the same as described above.

The manufacturing method of the light-shielding electromagnetic wave shielding material 20 according to the second embodiment of the present invention configured as described above will be described in detail.

FIG. 5 is a flowchart illustrating a method of manufacturing the transparent electromagnetic wave shielding material 20 of FIG. 2.

As shown in FIG. 2 and FIG. 5, the transparent electromagnetic wave shielding material 20 according to the second embodiment of the present invention is a solution state by dissolving at least one or more of glass, metal, ceramic, or polymer, which are transparent materials, in a solvent. Generating a first matrix 22 of S21, dispersing a predetermined amount of electromagnetic shielding material 21 to maintain transparency in the first matrix 22, and performing dispersion treatment It is manufactured by sequentially performing the step (S25) of coating the first matrix 22 on the second matrix 23 which is another transparent material.

Here, the specific manufacturing method until the first matrix 22 is coated on one surface of the second matrix 23 applies the method of manufacturing the transparent electromagnetic wave shielding material 10 according to the first embodiment of the present invention. do.

In this case, the step S25 of coating the first matrix 22 on the second matrix 23 may include spray coating, dip coating, flow coating, or spin coating. Coating may be carried out by at least one or more of spin coating methods.

Meanwhile, as illustrated in FIG. 3, the transparent electromagnetic wave shielding material 30 according to the third embodiment of the present invention is made of a transparent material that transmits visible light and the electromagnetic shielding material 31 is dispersed therein. The first matrix 32, the first matrix 32 is coated, and is composed of a transparent adhesive sheet 33 and a second matrix 34 of a transparent material bonded to the adhesive sheet 33 on one surface thereof.

The first and second matrices 32 and 34 and the electromagnetic wave shielding material 31 may include the matrix 12 and the electromagnetic wave shielding material 11 of the transparent electromagnetic wave shielding material 10 according to the first embodiment of the present invention. Is the same as

 The manufacturing method of the light-shielding electromagnetic wave shielding material 30 according to the third embodiment of the present invention configured as described above will be described in detail.

6 is a flowchart illustrating a method of manufacturing the transparent electromagnetic wave shielding material 30 according to the third embodiment of the present invention.

As shown in FIG. 3 and FIG. 6, the transparent electromagnetic wave shielding material 30 according to the third embodiment of the present invention may include at least one material of glass, metal, ceramic, or polymer that transmits visible light in a solvent. Dissolving to produce a first matrix 32 in a solution state (S31), dispersing an electromagnetic wave shielding material 31 in the first matrix 32 in a solution state (S32), and dispersing the first matrix Coating (32) on the transparent adhesive sheet 33 having the adhesive force (S35), and attaching the adhesive sheet 33 to the second matrix 34 which is another transparent material (S36) sequentially Is done.

Here, the process until the first matrix 32 is coated on the adhesive sheet 33 is applied mutatis mutandis in the first embodiment of the present invention.

In this case, the dispersed first matrix 32 is spray coated, dip coated, flow coated, or spin coated on the transparent adhesive sheet 33 having the adhesive force. It is coated and dried by at least one of spin coating or doctor blade coating.

The adhesive sheet 33 coated with the first matrix 32 is bonded to at least one surface of the second matrix 34 to manufacture a transparent electromagnetic shielding material 30 that transmits visible light but blocks electromagnetic waves.

On the other hand, the present invention provides various embodiments of a transparent electronic device that the electromagnetic wave is blocked using the transparent electromagnetic shielding material (10, 20, 30) in accordance with various embodiments as described above.

7 is a perspective view illustrating a configuration of a light-transmitting portable terminal in which electromagnetic waves are blocked according to a fourth embodiment of the present invention. FIG. 8 is an enlarged partial cross-sectional view taken along the line AA ′ of FIG. 7, and FIG. 10 is a perspective view illustrating a configuration of a light-transmitting display in which electromagnetic waves are blocked according to a fifth embodiment, FIG. 10 is an enlarged partial cross-sectional view taken along the AA ′ cutting line of FIG. 9, and FIG. Is a perspective view showing the configuration of a floodlight notebook is blocked, Figure 12 is an enlarged partial cross-sectional view taken along the AA 'cutting line of FIG.

As shown in FIG. 7 and FIG. 8, the light-transmitting portable terminal 100 in which electromagnetic waves according to the fourth embodiment of the present invention is blocked, is rotatable on the terminal body 110 and the upper end of the terminal body 110. Composed of the folder unit 120 to be combined.

Here, the terminal body 110 and the folder unit 120, the body 111 forming the enclosure, and is installed inside the body 111 to electrically operate and control the mobile terminal 100. The circuit board 112 includes various electronic components 112a, and one or more light emitting devices 113 disposed inside the body 111.

As shown in FIGS. 9 and 10, the floodlight display 200 in which electromagnetic waves are blocked according to the fifth embodiment of the present invention may include a display main body 210 and a display unit provided on the front of the display main body 210. It is generally composed of 220).

The display main body 210 includes a body 111 that is open to expose the display unit 220 to form an enclosure, and is installed in the body 111 to electrically and optically operate and control the display 200. The circuit board 112 includes the electronic component 112a and one or more light emitting elements 113 formed in the body 111.

As illustrated in FIGS. 11 and 12, the floodlight notebook 300 in which electromagnetic waves are blocked according to the sixth embodiment of the present invention is rotatably coupled to the notebook body 310 and the top of the notebook body 310. It is generally composed of the display unit 320.

The notebook body 310 and the display unit 320 may include a body 111 forming an enclosure and various electronic components 112a installed inside the body 111 to electrically operate and control the notebook 300. The circuit board 112 is provided, and at least one light emitting device 113 formed inside the body 111.

In the case of a general electronic device, since a circuit board and various electronic components for electrically operating the electronic device are provided inside the body forming the enclosure, electromagnetic waves can be generated from the circuit board and various electronic components. Thus, although the electronic device is illustrated as a portable terminal 100, a display 200, and a notebook 300 in FIGS. 7, 9, and 11, this is only one example, and a microwave oven, an MP3 player, and an audio device are shown. Electronic devices capable of emitting electromagnetic waves, etc., will all be said to belong to the scope of the present invention.

In the electronic device as described above, the body 111 is made of the transparent electromagnetic wave shielding material (10, 20, 30) as described above. That is, the transparent second matrix 23 made of a transparent matrix 12 having the electromagnetic wave shielding material 11 dispersed therein or coated with one surface of the transparent first matrix 22 having the electromagnetic wave shielding material 21 dispersed therein. Or the transparent second matrix 34 to which the adhesive sheet 33 coated with the transparent first matrix 32 on which the electromagnetic wave shielding material 31 is dispersed is adhered.

The circuit board 112 is provided with various electronic components 112a to electrically operate and control the electronic devices 100, 200, and 300, and the inside of the body 111 to be surrounded by the body 111. Is installed on.

The light emitting element 113 is preferably made of an LED (LED) element, it is configured to emit light of any one of white, blue, green or red, or a combination of two or more colors.

 As such, when one or more colors are emitted, the user may recognize the state of the electronic devices 100, 200, 300 by emitting different colors according to various states of the electronic devices 100, 200, 300. Do it. For example, the normal standby state of the electronic device 100, 200, 300 is white, the normal operating state is green, the abnormal standby state is blue, the abnormal state of the component, such as a short circuit of various circuits, red light is emitted. By configuring to allow the user to see the color of the light emitting device to distinguish the state of the electronic device (100, 200, 300).

In addition, by appropriately combining the various colors of the light emitting device 113, it is possible to make the external aesthetics of the electronic devices (100, 200, 300) beautiful, and maximize the aesthetics of the electronic devices (100, 200, 300) Aesthetic needs can be met.

Referring to the operation principle of the light-emitting electronic device 100, 200, 300 is blocked as the electromagnetic wave configured as described above are as follows.

Electromagnetic waves generated from the circuit board 112 or the various electronic components 112a provided inside the electronic devices 100, 200, and 300 are disposed so as to surround the circuit board 112 or the various electronic components 112a and transmit light. It is blocked by the body 111 made of electromagnetic shielding material (10, 20, 30).

In this case, electromagnetic waves caused by the electric field may be effectively blocked by the conductive materials 11a, 21a, and 31a, and electromagnetic waves caused by the magnetic fields may be effectively blocked by the magnetic materials 11b, 21b, and 31b.

On the other hand, since the body 111 is made of glass, metal, ceramic, or polymer that is a transparent material that transmits visible light, the visible light generated from the light emitting element 113 formed inside the body 111 is a transparent material. It is emitted to the outside of the electronic device 100, 200, 300 through the 111 and recognized by the user.

Here, by configuring the color of the light emitting device 113 to emit light of different colors according to the state of the electronic device (100, 200, 300), the user is in a state (for example, Normal standby state, normal operation state, abnormal standby state, abnormal operation state, or abnormal state of the circuit).

By using the light-emitting electronic device 100, 200, 300, the electromagnetic wave is cut in accordance with various embodiments of the present invention as described above, the electromagnetic wave generated in the circuit board 112 of the electronic device (100, 200, 300) While blocking, the visible light generated from the light emitting element 113 installed in the electronic device (100, 200, 300) is transmitted to block the electromagnetic wave harmful to the human body and at the same time the abnormality inside the electronic device (100, 200, 300) Visible light of the light emitting element 113 for warning a signal or the like may be transmitted. In particular, the electromagnetic wave generated by the electric field and the electromagnetic wave generated by the magnetic field can be effectively blocked at the same time.

In addition, by emitting the visible light generated from the light emitting element 113 to the outside of the electronic device (100, 200, 300), the external appearance of the electronic device (100, 200, 300) to be beautiful, the electronic device (100, 200) , 300 will have the advantage of maximizing the aesthetics.

In the above described exemplary embodiments of the present invention by way of example, the scope of the present invention is not limited to the specific embodiments as described above, the patent of the present invention by those skilled in the art to which the present invention belongs Changes may be made as appropriate within the scope of the claims.

In addition, in the preferred embodiment of the present invention, the electronic device is illustrated as a mobile terminal, a display, a notebook, but all kinds of electronic devices in which electromagnetic waves are generated by internal circuit boards or various electronic components are within the scope of the present invention. .

As described above, the present invention blocks electromagnetic waves generated from a printed circuit board of an electronic device, but transmits visible light emitted from a light emitting element installed inside the electronic device, thereby blocking electromagnetic waves harmful to a human body. Provided is a transparent electromagnetic shielding material through which visible light, which warns of an abnormal signal or the like inside the device and makes the design of the electronic device beautiful, is transmitted, and the electromagnetic wave is blocked.

In addition, the present invention provides a transparent electromagnetic shielding material capable of effectively blocking electromagnetic waves generated by an electric field and electromagnetic waves generated by a magnetic field at the same time and a transparent electronic device in which electromagnetic waves are blocked.

However, the present invention is not established only when all of the above effects are exerted.

Claims (16)

A matrix made of a transparent material that transmits visible light and provided with an electromagnetic shielding material; Transmissive electromagnetic shielding material, characterized in that it comprises a. The method of claim 1, The electromagnetic wave shielding material, Transmissive electromagnetic shielding material, characterized in that at least one of a conductive material or a magnetic material. The method of claim 2, The conductive material is at least one of copper, gold, silver, iron, carbon nanotubes or carbon nanofibers, The magnetic material is one or more selected from the group consisting of nano-sized nickel, cobalt, iron and its alloy metal, ferrite or nano-sized iron-based oxide. The method of claim 1, And said electromagnetic shielding material is dispersed in said matrix. The method of claim 1, The electromagnetic wave shielding material is coated on at least one of the upper surface or the lower surface of the matrix. The method of claim 1, The electromagnetic shielding material is coated on an adhesive film, The film is adhered to at least one of the upper surface or the lower surface of the matrix, the transparent electromagnetic wave shielding material. A first matrix made of a transparent material that transmits visible light and having an electromagnetic wave shielding material dispersed therein; A second matrix made of a transparent material transmitting visible light and coated with the first matrix; Transmissive electromagnetic shielding material, characterized in that it comprises a. The method of claim 7, wherein The electromagnetic wave shielding material, A transparent electromagnetic shielding material comprising at least one of a conductive material and a magnetic material. The method of claim 8, The conductive material is at least one of copper, gold, silver, iron, carbon nanotubes or carbon nanofibers, The magnetic material is one or more selected from the group consisting of nano-sized nickel, cobalt, iron and its alloy metal, ferrite or nano-sized iron-based oxide. A first matrix made of a transparent material that transmits visible light and having an electromagnetic wave shielding material dispersed therein; An adhesive sheet made of a transparent material that transmits visible light and having the first matrix coated thereon and having an adhesive force; A second matrix to which the adhesive sheet is bonded; Transmissive electromagnetic shielding material, characterized in that it comprises a. The method of claim 10, The electromagnetic wave shielding material, Transmissive electromagnetic shielding material, characterized in that at least one of a conductive material or a magnetic material. The method of claim 11, The conductive material is at least one of copper, gold, silver, iron, carbon nanotubes or carbon nanofibers, The magnetic material is one or more selected from the group consisting of nano-sized nickel, cobalt, iron and its alloy metal, ferrite or nano-sized iron-based oxide. A body made of a transparent electromagnetic wave shielding material according to any one of claims 1 to 12 and forming an enclosure; At least one light emitting device installed inside the body to emit light; Floodlight electronic device is characterized in that the electromagnetic wave is blocked. The method of claim 13, The light emitting device is a light emitting electronic device, the electromagnetic wave is blocked, characterized in that the LED device. The method of claim 14, The LED device is a transparent electronic device, the electromagnetic wave is cut off, characterized in that emitting at least one of white, blue, green or red. The method of claim 13, The transmissive electronic device to which the electromagnetic wave is blocked is any one of a portable terminal, a notebook computer, and a display.

Images