JPH0298998A - Electromagnetic wave shield material - Google Patents

Electromagnetic wave shield material

Info

Publication number
JPH0298998A
JPH0298998A JP25087288A JP25087288A JPH0298998A JP H0298998 A JPH0298998 A JP H0298998A JP 25087288 A JP25087288 A JP 25087288A JP 25087288 A JP25087288 A JP 25087288A JP H0298998 A JPH0298998 A JP H0298998A
Authority
JP
Japan
Prior art keywords
conductive member
plastic layer
conductive
mesh fabric
laminated plastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP25087288A
Other languages
Japanese (ja)
Inventor
Nobukatsu Asano
宣勝 浅野
Seigo Naito
内藤 清剛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Totsuya KK
Original Assignee
Totsuya KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Totsuya KK filed Critical Totsuya KK
Priority to JP25087288A priority Critical patent/JPH0298998A/en
Publication of JPH0298998A publication Critical patent/JPH0298998A/en
Pending legal-status Critical Current

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  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

PURPOSE:To enable assured connection of ground through a band-like conductive member by burying conductive meshed textile in a laminated plastic layer, by superposing the conductive member on a part of a periphery, and by exposing one face of the conductive member to the air. CONSTITUTION:A laminated substrate 2, a laminated plastic layer 3, mesh textile 4, and a conductive member 5 are interposed between stainless steel plates 8, 8, and fixed by pressure with the stainless steel plates 8, 8. After being fixed, they are cooled. Then the meshed textile 4 is buried in the laminated plastic layer 3 and an upper side of the conductive member 5 is exposed to an upper side of the laminated plastic layer 3 to provide a transparent electromagnetic wave shield material 1. A ground cable 9 is electrically connected to the conductive member 5 whereon the transparent electromagnetic wave shield material 1 is exposed through soldering, etc., for grounding readily which is connected to the meshed textile 4 assuredly.

Description

【発明の詳細な説明】 〈産業上の利用分野) この発明は、確実にアースが取れるようにした電磁波シ
ールド材に関し、特にCRTなどの表示装置に適用でき
る透明な電磁波シールド材に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an electromagnetic shielding material that ensures reliable grounding, and particularly to a transparent electromagnetic shielding material that can be applied to display devices such as CRTs.

〈従来の技術) 周知のように、管理情報を処理するのに用いられるコン
ピュータ端末装置やその他の電子機器の普及に伴ない、
電子機器から放射される電磁波障害が問題化している。
<Prior Art> As is well known, with the proliferation of computer terminals and other electronic devices used to process management information,
Electromagnetic interference emitted from electronic devices has become a problem.

そこで一般に、電子機器を取り巻くようにTrLai波
シールド物質の、l統層を設け、該′0!続層を接地す
ることによって電磁波のシールドが行なわれている。
Therefore, in general, a layer of TrLai wave shielding material is provided to surround the electronic equipment, and the '0! Electromagnetic waves are shielded by grounding the connecting layer.

しかし、CRTなどの表示装置では不透明な電磁波シー
ルド材で遮蔽することができず、透Qllな電磁波シー
ルド材が使用されている。
However, display devices such as CRTs cannot be shielded with opaque electromagnetic shielding materials, and transparent electromagnetic shielding materials are used.

この透明な電磁波シールド材としては、一対の透明基板
の間に2枚の積層化ポリマーシートをJqけ、このj!
i層化ポリマーシートの間に導電性メツシュ織物を介在
させたもの、あるいは一対の透明基板の間に積層化ポリ
マーシートを設け、積層化ポリマーシートと透明基板の
間に導電性メツシュ織物を゛介在させたものなどが知ら
れている。
This transparent electromagnetic shielding material consists of two laminated polymer sheets placed between a pair of transparent substrates.
A conductive mesh fabric is interposed between i-layered polymer sheets, or a laminated polymer sheet is provided between a pair of transparent substrates, and a conductive mesh fabric is interposed between the laminated polymer sheet and the transparent substrate. It is known what caused this.

〈発明が解決しようとする課題〉 しかし、一対の透明基板の間に2枚の積層化ポリマーシ
ートを設け、この積層化ポリマーシー トの間に導電性
メツシュ織物を介在させた従来の電磁波シールド材につ
いては、導電性メツシュ織物をアース接続するために、
その終端部を基板の周縁部から突出させなければならな
い。
<Problems to be Solved by the Invention> However, conventional electromagnetic shielding materials in which two laminated polymer sheets are provided between a pair of transparent substrates and a conductive mesh fabric is interposed between the laminated polymer sheets For grounding the conductive mesh fabric,
Its terminal end must protrude from the periphery of the substrate.

この突出したメツシュ織物部分はもろいのでこの突出部
分には裂は目や穴が生じ易く、また織物がほつれ易い。
Since this protruding mesh fabric portion is brittle, tears and holes are likely to occur in this protruding portion, and the fabric is also prone to fraying.

従って、シールド構成体の製造プロセス中、あるいはこ
の構成体を適当なフレームに取り付けるプロセス中は、
シールド構成体の取り扱いを慎重にしなければならない
、また。
Therefore, during the manufacturing process of the shielding arrangement or the process of attaching this arrangement to a suitable frame,
Shield constructs must also be handled with care.

メツシュ織物の突出部分に裂は目又は穴が生じた場合に
は、完成したシールドパネルが不良品とされる。しかも
、このような場合には突出したメツシュ織物は電磁放射
に対して効果的なシールドを果さず、実際には却ってア
ンテナのように機部する。
If tears, holes or holes appear in the protruding portion of the mesh fabric, the completed shield panel will be considered defective. Moreover, in such cases, the protruding mesh fabric does not provide an effective shield against electromagnetic radiation, and in fact acts more like an antenna.

一方、一対の透明基板の間に積層化ポリマーシートを設
け、積層化ポリマーシートと透明基板の間に導電性メツ
シュ織物を介在させた電磁波シールド材については、導
電性メツシュ織物の接触する透明基板の上面と下面の縁
部に縁取りバスタ−を設けてアースするようにしている
が、この方法では熱圧着の作業が非常に困難である。
On the other hand, regarding electromagnetic shielding materials in which a laminated polymer sheet is provided between a pair of transparent substrates and a conductive mesh fabric is interposed between the laminated polymer sheet and the transparent substrate, Edge busters are provided on the edges of the upper and lower surfaces for grounding, but this method makes thermocompression bonding very difficult.

〈課題を解決するための手段〉 本発明は上記に鑑み提案されたもので、透明な基板上に
、積層化プラスチック層を設け、該積層化プラスチック
層に導電性メツシュ織物の一部又は全部を埋設すると共
に、上記導電性メツシュ織物の周縁部の少なくとも一部
に帯状の導電性部材を重畳して設け、上記導電性部材の
一面が空気中に露出するようにしたものである。
<Means for Solving the Problems> The present invention has been proposed in view of the above, and includes providing a laminated plastic layer on a transparent substrate, and applying a part or all of the conductive mesh fabric to the laminated plastic layer. In addition to being embedded, a band-shaped conductive member is provided to overlap at least a portion of the peripheral edge of the conductive mesh fabric, so that one surface of the conductive member is exposed in the air.

〈作 用〉 積層化プラスチック層が導電性メツシュ織物を保護し、
−面が空気中に露出する帯状の導電性部材と導電性メツ
シュ織物とが広い範囲の面積で導通し、導電性部材を介
して確実にアースを接続することかできる。
<Function> The laminated plastic layer protects the conductive mesh fabric,
- The band-shaped conductive member whose surface is exposed to the air and the conductive mesh fabric are electrically connected over a wide area, and the ground can be reliably connected through the conductive member.

〈実 施 例〉 以下に本発明を図面の実施例について説明する。<Example> The present invention will be described below with reference to embodiments shown in the drawings.

第1図は本発明に係る電磁波シールド材lの概略斜視図
であって、透明な基板2上に、積層化プラスチックPI
3を設け、該積層化プラスチック層3に導電性メツシュ
織物4を埋設すると共に、上記導電性メツシュ織物4の
側縁部に帯状の導電性部材5を重畳して1没け、上記導
電性部材5の上面が空気中に露出するように構成したも
のである。
FIG. 1 is a schematic perspective view of an electromagnetic shielding material l according to the present invention, in which a laminated plastic PI is placed on a transparent substrate 2.
3, a conductive mesh fabric 4 is buried in the laminated plastic layer 3, and a band-shaped conductive member 5 is superimposed on the side edge of the conductive mesh fabric 4 and buried. 5 is constructed so that the upper surface of the container is exposed to the air.

上記透明の基板2としては、ポリ塩化ビニルポリスチレ
ン、ポリメチルメタアクリレート及びこれらの共重合体
、また耐衝撃性が要求される場合には、これにブタジェ
ン等のゴム成分をグラフト重合させた変性プラスチック
やポリカーボネート等が用いられる。
The transparent substrate 2 may be made of polyvinyl chloride polystyrene, polymethyl methacrylate, or a copolymer thereof, or if impact resistance is required, a modified plastic made by graft polymerizing a rubber component such as butadiene. or polycarbonate.

また、u層化プラスチック層3としては、基板2として
用いられる透明プラスチック板より軟化点が低く、かつ
透明プラスチック板との接着性のよいものが用いられる
0例えば、塩化ビニル−酢酸ビニル共重合体、ポリアク
リレート共重合体。
Further, as the U-layer plastic layer 3, a material having a softening point lower than that of the transparent plastic plate used as the substrate 2 and having good adhesiveness to the transparent plastic plate is used. For example, vinyl chloride-vinyl acetate copolymer is used. , polyacrylate copolymer.

ポリスチレン共重合体等を使用することができ、Jti
さは例えば0.1■である。
Polystyrene copolymers etc. can be used, and Jti
The value is, for example, 0.1■.

更に、上記導電性メツシュ織物4としては、電磁波のシ
ールド効果上50〜300メツシユ、好ましくは100
〜150メツシユのものが使用され、その材質としては
金属メツシュ、金属メツキ合繊メツシュ等を使用するこ
とができる。この場合金属メツシュとしては銅、ステン
レスメツシュが適している。また、金属メツキ合繊メツ
シュとしては、ポリエステル、ナイロンメツシュ等に銅
又はクロム及びニッケルメッキを施したものが用いられ
る。
Further, the conductive mesh fabric 4 has a mesh size of 50 to 300, preferably 100, in view of the electromagnetic wave shielding effect.
~150 mesh is used, and its material may be metal mesh, metal-plated synthetic fiber mesh, etc. In this case, copper or stainless steel mesh is suitable as the metal mesh. Further, as the metal-plated synthetic fiber mesh, polyester, nylon mesh, etc., plated with copper or chromium and nickel are used.

そして、これらの金属又は金属メツキ合繊メツシュをV
DT用フィルターに使用する場合には、黒クロムメツキ
や黒染処理を施して使用することが好ましい。
Then, these metal or metal-plated synthetic fiber meshes are
When used in a DT filter, it is preferable to perform black chrome plating or black dyeing treatment.

一方、導電性メツシュ織物4の周縁部に重畳して設ける
導電性部材5は、例えば、銅やアルミニウムなどの導電
性の金属板に不連続に多数のスリットを設け、該金属板
をスリットと直交する方向に伸長させて#1目状とし、
山部5aと谷部5bを交互に有した所謂エキスバンドメ
タルや、金ta板にエンボス加工を施して凹凸状とした
ものが用いられる。そして、この導電性部材5を帯状に
して導電性メツシュ織物4に重性して設ける。
On the other hand, the conductive member 5 provided so as to overlap the periphery of the conductive mesh fabric 4 can be formed by providing a large number of discontinuous slits in a conductive metal plate such as copper or aluminum, and inserting the metal plate perpendicularly to the slits. Stretch it in the direction to make #1 eye shape,
A so-called expanded metal having alternating peaks 5a and troughs 5b or a gold ta plate embossed to have an uneven shape are used. Then, this conductive member 5 is formed into a band shape and attached to the conductive mesh fabric 4 in a heavy manner.

上記のような導電性部材5においては、金属板の表面積
が増加すると共に凹凸が形成されているので、導電性メ
ツシュ織物4と帯状の導電性部材5との接触面積が増加
すると共に、両者の凹凸が互いに係合して電気的接触が
良好になる。尚、導電性部材5として導電性の粘着テー
プを使用することも可能である。
In the conductive member 5 as described above, the surface area of the metal plate is increased and irregularities are formed, so the contact area between the conductive mesh fabric 4 and the strip-shaped conductive member 5 is increased, and the contact area between the two is increased. The concave and convex portions engage with each other to provide good electrical contact. Note that it is also possible to use a conductive adhesive tape as the conductive member 5.

次に、本発明に係る電磁波シールド材ll、7)製造法
を述べる。
Next, the manufacturing method of electromagnetic shielding material 11, 7) according to the present invention will be described.

第3図に示すように、透明な塩化ビニル板からなる基板
2の、ヒに、厚さ0.1■の塩化ビニルφ酢醜ビニル共
重合体からなる積層化プラスチック層3を載せ、この上
に銅メツシユからなるメツシュ織物4を載せ、このメツ
シュ織物4の側縁に帯状のエキスバンドメタルからなる
導″准性部材5を載せる。
As shown in FIG. 3, a laminated plastic layer 3 made of vinyl chloride φ vinegar-ugly vinyl copolymer with a thickness of 0.1 cm is placed on a substrate 2 made of a transparent vinyl chloride plate, and then A mesh fabric 4 made of copper mesh is placed on the mesh fabric 4, and a conductive member 5 made of a band-shaped expanded metal is placed on the side edge of this mesh fabric 4.

一方、高圧プレス装2?6はヒータ7.7を有し、この
ヒータ7.7間に間隔を置いて2枚のステンレス板8.
8を挿入してなる。そして、上述のように積層された基
板2、積層化プラスチ・ンク層3.メツシュ織物4及び
導電性部材5を、ステンレス板8.8間に装入し、約8
0℃の加温下にステンレス板848で圧着する。このよ
うにして圧着した後、冷却すると、メツシュ織物4は積
層化プラスチック層3内に埋没すると共に、導電性部材
5のL面が積層化プラスチック層3の上面に露出して透
明電磁波シールド材1が得られる。
On the other hand, the high-pressure press device 2-6 has a heater 7.7, and two stainless steel plates 8.
By inserting 8. Then, the substrate 2, the laminated plastic ink layer 3, which is laminated as described above. The mesh fabric 4 and the conductive member 5 are inserted between the stainless steel plates 8.
Pressure bonding is performed with a stainless steel plate 848 while heating at 0°C. After being crimped and cooled in this way, the mesh fabric 4 is buried in the laminated plastic layer 3, and the L side of the conductive member 5 is exposed on the upper surface of the laminated plastic layer 3, so that the transparent electromagnetic shielding material 1 is obtained.

そして、この透明な電磁波シールド材1の露出した導電
性部材5にアース線9を半田付けするなど電気的に接続
して、メツシュ織物4と確実に接続されたアースを簡単
にとることができる。
Then, by electrically connecting the ground wire 9 to the exposed conductive member 5 of the transparent electromagnetic shielding material 1 by soldering, etc., it is possible to easily establish a secure ground connection with the mesh fabric 4.

以上1本発明を図面の実施例について説明したが1本発
明はE記実施例に限定されるものではなく、特許請求の
範囲に記載の構成を変更しない限り適宜に実施できる0
例えば、L記実施例では導電性メツシュ織物4の一辺全
長に導電性部材5を重畳したが、本発明はこれに限らず
四辺全部に設けたり、隣り合う二辺あるいは一辺の一部
に設けてもよい、また、電磁波シールド材lは矩形に限
らず、円形に形成してレーダ装置のモニターに適用する
°こともできる。更に、導電性メツシュ織物は、印刷的
手法や穿孔的手法によって得たものであってもよい。
Although the present invention has been described above with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiment described in E, and can be carried out as appropriate without changing the structure described in the claims.
For example, in Example L, the conductive member 5 is superimposed on the entire length of one side of the conductive mesh fabric 4, but the present invention is not limited to this, and the conductive member 5 may be provided on all four sides, two adjacent sides, or a part of one side. Furthermore, the electromagnetic shielding material l is not limited to a rectangular shape, but can also be formed into a circular shape and applied to a monitor of a radar device. Furthermore, the conductive mesh fabric may be obtained by a printing method or a perforation method.

〈発明の効果〉 以上要するに本発明は、透明な基板上に、積層化プラス
チック層を設け、該積層化プラスチック層に導電性メツ
シュ織物の一部又は全部を埋設すると共に、上記導電性
メツシュ織物の周縁部の少なくとも−・部に導電性部材
を重畳して設け、上記導電性部材の一面が空気中に露出
するようにした構造であるため、空気中に露出する導電
性部材から導電性メツシュ織物にアースを確実に接続す
るることかでき、電磁波の遮断に極めて有効である。ま
た、導電性メツシュ織物が積層化プラスチック層に埋設
されているので、メツシュ織物に穴が開いたり、はつれ
たりすることがなく、取り扱いが容易で、製造も簡単で
あり、しかも不良品の発生がなく歩留りがよい、そして
、本発明は電磁波障害防止に有効な電磁波シールド材を
安価に提供することのできる実用的価値の高いものであ
る。
<Effects of the Invention> In summary, the present invention provides a laminated plastic layer on a transparent substrate, embeds part or all of the conductive mesh fabric in the laminated plastic layer, and embeds the conductive mesh fabric in the laminated plastic layer. Since the structure is such that a conductive member is superimposed on at least a part of the peripheral edge, and one side of the conductive member is exposed in the air, the conductive mesh fabric is removed from the conductive member exposed in the air. It is extremely effective in blocking electromagnetic waves, as it allows a reliable connection to the ground. In addition, since the conductive mesh fabric is embedded in the laminated plastic layer, the mesh fabric does not become punctured or unraveled, making it easy to handle and manufacture, and there is no possibility of defective products. The present invention has high practical value as it can provide an electromagnetic shielding material effective in preventing electromagnetic interference at a low cost.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明の実施例を示し、第1図は71!磁波シー
ルド材の概略熱視図、第2図は導電性部材の一例の断面
図、第3図は透明基板上に植層化プラスチック層、導電
性メツシュ織物、導電性部材を積層した状態を示す断面
図、第4図は同上の積層したものを高圧プレス装置内に
装入した状態を示す断面図、第5図は高圧プレス装置内
で加温下に圧着して得られた透明71!磁波シールド材
の断面図である。 1・・・電磁波シールド材、2・・・基板、3・・・J
J1層化プラスチック層、4・・・導電性メツシュ織物
、5・・・導電性部材。
The drawings show an embodiment of the invention, and FIG. 1 shows 71! A schematic thermal view of the magnetic wave shielding material, Fig. 2 is a cross-sectional view of an example of a conductive member, and Fig. 3 shows a state in which a planted plastic layer, a conductive mesh fabric, and a conductive member are laminated on a transparent substrate. 4 is a cross-sectional view showing the same laminated material as above loaded into a high-pressure press machine, and FIG. 5 is a transparent 71! obtained by pressing under heat in a high-pressure press machine. FIG. 3 is a cross-sectional view of a magnetic wave shielding material. 1... Electromagnetic shielding material, 2... Substrate, 3... J
J1 layered plastic layer, 4... conductive mesh fabric, 5... conductive member.

Claims (1)

【特許請求の範囲】[Claims]  透明な基板上に、積層化プラスチック層を設け、該積
層化プラスチック層に導電性メッシュ織物の一部又は全
部を埋設すると共に、上記導電性メッシュ織物の周縁部
の少なくとも一部に帯状の導電性部材を重畳して設け、
上記導電性部材の一面が空気中に露出するようにしたこ
とを特徴とする電磁波シールド材。
A laminated plastic layer is provided on a transparent substrate, a part or all of a conductive mesh fabric is embedded in the laminated plastic layer, and a band-shaped conductive layer is provided on at least a part of the periphery of the conductive mesh fabric. Providing overlapping parts,
An electromagnetic shielding material characterized in that one surface of the conductive member is exposed in the air.
JP25087288A 1988-10-06 1988-10-06 Electromagnetic wave shield material Pending JPH0298998A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25087288A JPH0298998A (en) 1988-10-06 1988-10-06 Electromagnetic wave shield material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25087288A JPH0298998A (en) 1988-10-06 1988-10-06 Electromagnetic wave shield material

Publications (1)

Publication Number Publication Date
JPH0298998A true JPH0298998A (en) 1990-04-11

Family

ID=17214264

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25087288A Pending JPH0298998A (en) 1988-10-06 1988-10-06 Electromagnetic wave shield material

Country Status (1)

Country Link
JP (1) JPH0298998A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6417619B1 (en) 1997-04-10 2002-07-09 Sumitomo Chemical Company, Limited Front panel board for plasma display
JP2012035556A (en) * 2010-08-10 2012-02-23 Kurabo Ind Ltd Conductive fiber-reinforced plastic, method for manufacturing the same, and electromagnetic wave shield material using the same
JP2012035557A (en) * 2010-08-10 2012-02-23 Kurabo Ind Ltd Conductive fiber reinforced plastic, method for manufacturing the same, and electromagnetic wave shield material using the same
CN102493118A (en) * 2010-12-08 2012-06-13 浙江高达新材料有限公司 Warp-knitted fishnet capable of shielding microwave

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57154898A (en) * 1981-02-23 1982-09-24 Optical Coating Laboratory Inc Transparent electromagnetic shield and method of producing same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57154898A (en) * 1981-02-23 1982-09-24 Optical Coating Laboratory Inc Transparent electromagnetic shield and method of producing same

Cited By (4)

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Publication number Priority date Publication date Assignee Title
US6417619B1 (en) 1997-04-10 2002-07-09 Sumitomo Chemical Company, Limited Front panel board for plasma display
JP2012035556A (en) * 2010-08-10 2012-02-23 Kurabo Ind Ltd Conductive fiber-reinforced plastic, method for manufacturing the same, and electromagnetic wave shield material using the same
JP2012035557A (en) * 2010-08-10 2012-02-23 Kurabo Ind Ltd Conductive fiber reinforced plastic, method for manufacturing the same, and electromagnetic wave shield material using the same
CN102493118A (en) * 2010-12-08 2012-06-13 浙江高达新材料有限公司 Warp-knitted fishnet capable of shielding microwave

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