KR20030084452A - Electromagnetic Wave Shielding Apparatus for Display - Google Patents

Abstract

PURPOSE: An electromagnetic wave shielding device for a display is provided to widen the contact area of a mesh and a metal support plate to improve the rate of shielding electromagnetic waves emitted from a monitor. CONSTITUTION: An electromagnetic wave shielding device for a monitor includes a mesh(130), a pair of transparent plates(120a,120b), and a pair of metal support plates(150,150d). The mesh is formed of a conductive metal material to shield electromagnetic waves emitted from the monitor. The pair of transparent plates are respectively attached to both sides of the mesh. The size of the transparent plates is smaller than the size of the mesh so that the edge of the mesh is exposed. The pair of support plates are connected with the mesh to surround the four sides of the transparent plates.

Description

Electromagnetic Wave Shielding Apparatus for Display

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety goggle for a monitor, and provides a safety goggle for a monitor that shields a component harmful to a human body, such as electromagnetic waves emitted from a monitor.

In general, the eye protection for the monitor is installed in front of the monitor, such as a TV, computer, etc. to protect the user's eyesight or the human body by blocking the electromagnetic waves emitted from the monitor and magnetic lines or strong light reflected from the monitor.

The conventional eye glasses for monitors are sprayed with a conductive powder capable of shielding the electromagnetic waves on the glass plate in order to shield the electromagnetic waves emitted from the monitor, such as a computer, TV. However, the safety glasses sprayed with conductive powder only shielded about 5% of the electromagnetic waves emitted from the computer, and the user was exposed to about 95% of the electromagnetic waves.

As another technique, safety glasses containing conductive metal meshes between glass plates have been studied.

1 is a plan view showing a safety glasses for a monitor according to the prior art.

The safety glasses 10 are made of a transparent material so that the user can see the contents displayed on the monitor, and the transparent plate 12 including a conductive mesh and the mesh are connected to the mesh to allow current to flow to the ground plane. It consists of a support plate 14 coated with a metal material for shielding the emitted electromagnetic waves.

2A is a cross-sectional view taken along line A and A ′ of FIG. 1 according to the prior art.

A cross-sectional view of A and A 'of the safety goggles 10 for monitoring of FIG. 2A shows a metal material having a conductive property such that an electric current can flow between the first transparent plate 12a and the second transparent plate 12b. The made mesh 13 is inserted. The conductive mesh 13 is spread like a mesh on the front surface of the transparent plate 12 so as to shield electromagnetic waves emitted from the computer with a fine thickness of, for example, 0.1 mm. The connecting portion 15 is located between the mesh 13, the first transparent plate 12a, the second transparent plate 12b, and the support plate 14. The connecting portion 15 is made of a conductive metallic material so that a current flowing in the conductive mesh 13 can also be connected to and flow through the support plate 14.

However, since the area where the connecting portion 15 contacts the mesh 13 and the support plate 14 is small, the ground resistance is large, so that current flowing through the mesh 13 does not flow smoothly to the support plate 14. Only 20% shielding.

Figure 2b is a view showing in detail the portion B of Figure 1 according to the prior art.

The thin metal mesh 13 inserted between the first transparent plate 12a and the second transparent plate 12b is arranged like a mesh on the entire surface of the transparent plate 12. Looking at the arrangement of the mesh 13, Angle (alpha) of the X-axis and Y-axis of the mesh 13 has comprised 90 degrees. Since the angle generates distortion of the rainbow pattern on the eyeglasses 10, the contents are distorted when the user gazes at the contents displayed on the monitor of a computer or a TV.

3 is a graph showing the shielding effect of the safety glasses 10 for the monitor of the prior art.

D shown in FIG. 3 represents a mil standard criterion of the transmission level of electromagnetic waves emitted from the monitor 1 m in front of the safety glasses 10 through the safety glasses 10, and C is 3 m of the safety glasses 10. As a baseline that defines the transmission level of electromagnetic waves emitted earlier, the standards of electromagnetic waves generated from major electric and electronic products by the US Federal Communications Commission (FCC) as part of the efficient use and management of radio resources. It is shown. As shown in FIG. 3, in the prior art, as the frequency increases, the electromagnetic wave exceeds the reference transmission level (C, D).

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and provides a safety glasses for a monitor that shields harmful electromagnetic waves emitted from a computer when a user uses the computer.

Still another object of the present invention is to provide a safety goggle for a monitor that removes the distortion of the rainbow shape displayed on the goggles.

1 is a plan view showing a safety glasses for a monitor according to the prior art,

2A is a cross-sectional view taken along the line A and A 'of FIG. 1 according to the prior art;

Figure 2b is a view showing in detail the portion B of Figure 1 according to the prior art,

3 is a graph showing the shielding effect of the monitor eye shield of the prior art,

4 is a view showing the structure of the eye shield for a monitor according to an embodiment of the present invention,

5 is a plan view of the eye shield for a monitor according to an embodiment of the present invention,

6A is a cross-sectional view taken along line F and F ′ of FIG. 5 according to an embodiment of the present invention;

6B is a cross-sectional view taken along line F and F ′ of FIG. 5 according to another embodiment of the present invention;

7 is a view showing in detail the portion E of Figure 5 in accordance with the present invention,

8 is a view showing an example in which the eyeglasses are attached to the monitor according to the present invention;

9 is a graph showing the shielding effect of the eye shield for the monitor according to the present invention.

<Description of the symbols for the main parts of the drawings>

120 transparent plate 120a first transparent plate

120b: second transparent plate 130: mesh

130a: first connection part 130b: second connection part

140: safety glasses 150: the first support plate

150d: second support plate 150b: insertion hole

210: monitor

In the safety glasses for the monitor to shield the electromagnetic waves emitted from the monitor,

A mesh made of a conductive metal mesh to shield electromagnetic waves emitted from the monitor; A pair of transparent plates attached to both surfaces of the mesh and composed of a transparent material so that the contents displayed on the monitor can be viewed, and smaller than the size of the mesh so that the edge of the mesh protrudes; And a pair of support plates of conductive metal connected to the mesh to surround four surfaces of the pair of transparent plates.

In addition, in the monitor that shields electromagnetic waves emitted from the display,

A display for displaying an image; A mesh made of a conductive metal mesh to shield electromagnetic waves emitted from the display; A pair of transparent plates attached to both sides of the mesh and composed of a transparent material so that the contents displayed on the monitor can be viewed and smaller than the size of the mesh to protrude the edge of the mesh; And a pair of support plates of conductive metal connected to the mesh to surround four surfaces of the pair of transparent plates.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 is a view showing the structure of the safety glasses 140 for a monitor according to an embodiment of the present invention.

The safety glasses 140 are composed of a first transparent plate 120a, a second transparent plate 120b, a mesh 130, a first support plate 150, a second support plate 150d, and a connection screw 150c.

The mesh 130 is formed of an electrically conductive thin mesh-like arrangement, and the first transparent plate 120a and the second transparent plate 120b are attached to both surfaces of the mesh 130. The mesh 130 allows electromagnetic waves emitted from the front of the monitor to flow into the first support plate 150 and the second support plate 150d. The mesh 130 may be replaced with a strong conductive material in addition to the metal material.

The first transparent plate 120a and the second transparent plate 120b are large enough to cover a monitor such as a TV or a computer (15 ', 17', 19 ', ...) to view the contents displayed on the monitor. It is made of a transparent polycarbonate so that the size of the first transparent plate (120a) and the second transparent plate (120b) is adjustable. In addition, the first transparent plate 120a and the second transparent plate 120b may be replaced with another transparent and hard material other than polycarbonate, and the first transparent plate 120a and the second transparent plate 120b may be made of glass. It is adhered with a transparent UV adhesive or optical device adhesive used for bonding, and can be replaced with another transparent adhesive.

The first support plate 150 and the second support plate 150d are made of a conductive metal material so that the electromagnetic waves flowing in the mesh 130 can be conducted, and can be replaced if the material is conductive in addition to the metal material. The first support plate 150 and the second support plate 150d are connected to the ground to allow electromagnetic waves transmitted from the mesh 130 to flow out of the safety glasses 140. As shown in FIG. 4, the mesh 130 protrudes out of the first transparent plate 120a and the second transparent plate 120b so that the mesh 130 is formed on the first support plate 150 and the second support plate 150d. The area that can be contacted is large. Therefore, the ground resistance of each side of the mesh 130 and the first support plate 150 and the second support plate 150d decreases, so that electromagnetic waves flowing from the mesh 130 are transferred to the first support plate 150 and the second support plate 150d. Flows smoothly. Therefore, the shielding effect of electromagnetic waves emitted from the monitor is also increased by 85 to 90%.

The mesh 130, the first support plate 150, and the second support plate 150d are connected to respective insertion holes in the edges of the first support plate 150 and the mesh 130 and the second support plate 150d, respectively. Insert the first support plate 150, the mesh 130, and the second support plate 150d in this order. At this time, the first support plate 150 and the second support plate 150d are made of a conductive metallic material similar to the mesh 130 to allow electromagnetic waves to flow. The first support plate 150 and the second support plate 150d may be replaced with another conductive material in addition to the metal material.

5 is a plan view of a safety glasses for a monitor according to an embodiment of the present invention.

Safety goggles 140 is a mesh-like conductive mesh 130 is projected out of the four sides of the first transparent plate (120a). When the resistance is measured using 130x points and 130y points of the mesh 130 shown in the drawings at both ends, it can be seen that the resistance at both ends of the conventional safety glasses is significantly reduced compared to that of 1-6Ω. The mesh 130 protruding out of the first transparent plate 120a has a plurality of connection screw insertion holes 130z to facilitate mounting with the monitor.

As shown in the figure, a thin film 130c of a metal component is coated on the periphery of the first transparent plate 120a in contact with the mesh 130. The thin film 130c serves to reduce the contact resistance of the mesh 130.

6A is a cross-sectional view taken along line F and F ′ of FIG. 5 according to an embodiment of the present invention.

The mesh 130 of conductive material inserted between the first transparent plate 120a and the second transparent plate 120b is larger in size than the pair of transparent plates 120a and 120b and thus has a pair of transparent plates 120a. , 120b) protrudes out of the edge, and the edge of the mesh 130 has an insertion hole to facilitate connection with other devices.

6B is a cross-sectional view taken along line F and F ′ of FIG. 5 according to another embodiment of the present invention.

The conductive mesh 130 inserted between the first transparent plate 120a and the second transparent plate 120b protrudes out of the pair of transparent plates 120a and 120b. In addition, the first connecting portion 130a is further included between the first transparent plate 120a and the mesh 130, and the second connecting portion 130b is further included between the second transparent plate 120b and the mesh 130. The first connecting portion 130a and the second connecting portion 130b are conductive materials, which increase the area of contact with the mesh 130 to reduce ground resistance and allow electromagnetic waves to flow well.

As illustrated in FIGS. 6A and 6B, a metal thin film is coated on the contact portion between the first transparent plate 120a, the second transparent plate 120b, and the mesh 130.

7 is a view showing in detail the portion E of Figure 5 in accordance with the present invention.

The conductive mesh 130 attached with a transparent adhesive material between the first transparent plate 120a and the second transparent plate 120b of the safety glasses 140 of the present invention is arranged like a mesh and the structure is obliquely diagonally. do. For example, the angle θ between the X and Y axes of the array structure of the mesh 130 shown in FIG. 7 is about 45 ° to 50 °. The mesh 130 at this angle prevents the rainbow shape from appearing in the safety glasses 140.

8 is a view showing an example in which the eyeglasses 140 are attached to the monitor 210 according to the present invention.

The mesh 130 attaches the first transparent plate 120a and the second transparent plate 120b to both surfaces with a transparent and adhesive UV adhesive, respectively, and the mesh 130 and the pair of support plates 150 and 150d. The first supporting plate 150, the mesh 130, and the second supporting plate (150) by inserting the connection screw 150c into the rim of the silver mesh 130 and the insertion holes in each of the first supporting plate 150 and the second supporting plate 150d. 150d) in order. When the safety glasses 140 are installed on the monitor 210 of a computer, a TV, or the like, the connection screw is inserted into another insertion hole 150b of the first support plate 150 to be installed on the monitor. At this time, the first support plate 150 and the second support plate 150d are connected to the ground, and electromagnetic waves emitted from the monitor 210 pass through the mesh 130 to ground the first support plate 150 and the second support plate 150d. Through the safety glasses 140 to flow through.

9 is a graph showing the shielding effect of the safety glasses 140 for the monitor according to the present invention.

In FIG. 9, G denotes a mil standard criterion of the transmission level of electromagnetic waves emitted from the monitor 210 in front of the safety glasses 140 1m through the safety glasses 140. As shown in FIG. 9, when the safety glasses 140 of the present invention are used, it can be seen that the frequency of electromagnetic waves emitted from the monitor 210 does not exceed the mill standard criterion.

As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

As described above, the present invention relates to a safety goggles shielding electromagnetic waves harmful to a human body emitted from the monitor, and the contact area with the ground plane to which the support plate of the conductive metal material is in contact, as with the conductive metal mesh. The wider the resistance, the higher the shielding effect of electromagnetic waves emitted from the monitor.

Another effect is to remove the rainbow-shaped distortion that appears in the eye shields by diagonally arranging the mesh.

Claims (15)

In the safety glasses for the monitor to shield the electromagnetic waves emitted from the monitor, A mesh made of a conductive metal mesh to shield electromagnetic waves emitted from the monitor; A pair of transparent plates attached to both surfaces of the mesh and composed of a transparent material so that the contents displayed on the monitor can be viewed, and smaller than the size of the mesh so that the edge of the mesh protrudes; And a pair of support plates of a conductive metal material connected to the mesh and surrounding four surfaces of the pair of transparent plates. According to claim 1, Safety glasses for the monitor, characterized in that the material of the pair of transparent plates made of polycarbonate. According to claim 1, Safety glasses for the monitor, characterized in that to attach a pair of transparent plates on both sides of the mesh with a UV adhesive of a transparent material. According to claim 1, The pair of transparent plate is a safety glasses for the monitor, characterized in that consisting of glass. According to claim 1, Safety glasses for the monitor, characterized in that the pair of transparent plates made of plastic. According to claim 1, The mesh safety glasses for the monitor, characterized in that inserted between the pair of transparent plate X-axis and Y-axis diagonally 40 to 60 °. According to claim 1, The mesh safety glasses for monitor, characterized in that the insertion hole is drilled in a portion protruding out of the pair of transparent plate to be attached to the monitor. According to claim 1, The mesh and the pair of support plates are monitor eyeglasses characterized in that attached to the insertion screw in the insertion hole in each of the support plates. According to claim 1, The pair of support plates, the eye shield for the monitor, characterized in that connected to the ground so that the electromagnetic waves conducted through the mesh flows outside the safety goggles. According to claim 1, The transparent plate is a safety glasses for the monitor, characterized in that further comprising the edge of the transparent plate of the portion where the pair of transparent plate and the mesh contact so that the area of contact between the mesh and the pair of supporting plates is widened. The method of claim 10, Safety glasses for the monitor, characterized in that further comprising a connection of the conductive metal between the mesh and the pair of transparent plates, respectively. A monitor that shields electromagnetic waves emitted from a display, A display for displaying an image; A mesh made of a conductive metal mesh to shield electromagnetic waves emitted from the display; A pair of transparent plates attached to both sides of the mesh and composed of a transparent material so that the contents displayed on the monitor can be viewed and smaller than the size of the mesh to protrude the edge of the mesh; And a pair of support plates of conductive metal material connected to the mesh and surrounding four surfaces of the pair of transparent plates. The method of claim 12, The pair of support plates are monitors, characterized in that attached to the insertion hole in each of the support plate and the insertion hole in the edge of the mesh by attaching the connection screw. The method of claim 12, Monitor of the pair of transparent plate is made of polycarbonate. The method of claim 12, And a pair of transparent plates on both sides of the mesh with UV adhesive of transparent material.