JP2600276B2 - Flexible printed wiring board - Google Patents
Flexible printed wiring boardInfo
- Publication number
- JP2600276B2 JP2600276B2 JP63100616A JP10061688A JP2600276B2 JP 2600276 B2 JP2600276 B2 JP 2600276B2 JP 63100616 A JP63100616 A JP 63100616A JP 10061688 A JP10061688 A JP 10061688A JP 2600276 B2 JP2600276 B2 JP 2600276B2
- Authority
- JP
- Japan
- Prior art keywords
- printed wiring
- wiring board
- flexible printed
- attached
- unattached
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/36—Assembling printed circuits with other printed circuits
- H05K3/361—Assembling flexible printed circuits with other printed circuits
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は回路基板に付着されて使用されるフレキシブ
ルプリント配線板に関する。Description: TECHNICAL FIELD The present invention relates to a flexible printed wiring board used by being attached to a circuit board.
［従来の技術］ ガラス表示パネルに接着された従来のフレキシブルプ
リント配線板の平面図を第３図に、その側面図を第４図
に示す。[Prior Art] FIG. 3 is a plan view of a conventional flexible printed wiring board bonded to a glass display panel, and FIG. 4 is a side view thereof.
このフレキシブルプリント配線板１はその一面1Aに互
いに平行に配設された複数本の導体パターン11をもち、
一端部1Eにおいて導電性接着剤（図示せず）により、ガ
ラス表示パネル２に接着されている。ガラス表示パネル
２もその一面2Aに互いに平行に配設された複数本の導体
パターン21をもち、各導体パターン11と各導体パターン
21とはフレキシブルプリント配線板１の一端部1Eの近傍
において、前記導電性接着剤（図示せず）により電気的
に接続されている。The flexible printed wiring board 1 has a plurality of conductor patterns 11 arranged on one surface 1A thereof in parallel with each other.
One end 1E is bonded to the glass display panel 2 by a conductive adhesive (not shown). The glass display panel 2 also has a plurality of conductor patterns 21 disposed on one surface 2A thereof in parallel with each other.
21 is electrically connected to the flexible printed wiring board 1 near the one end 1E by the conductive adhesive (not shown).
その結果、フレキシブルプリント配線板１に、ガラス
表示パネル２に接着された接着部分12と、ガラス表示パ
ネル２に接着されない未着部分13とが形成され、接着部
分12と未着部分13とは境界線（１点鎖線で示す）1Bによ
り区分されている。As a result, an adhesive portion 12 adhered to the glass display panel 2 and an unattached portion 13 not adhered to the glass display panel 2 are formed on the flexible printed wiring board 1, and the boundary between the adhesive portion 12 and the unattached portion 13 is formed. Line 1B (indicated by a dashed line).
その他、双方の導体パターンの電気的接続のためにガ
ラス表示パネルなどの回路基板に圧接されるフレキシブ
ルプリント配線板も知られている。In addition, a flexible printed wiring board which is pressed against a circuit board such as a glass display panel for electrical connection between both conductor patterns is also known.
このような直接接続技術は、接続に特別のコネクタを
必要としないので、簡便であるという利点を有する。Such a direct connection technique has the advantage of being simple because no special connector is required for the connection.
［発明が解決しようとする課題］ しかしながら上記した従来のフレキシブルプリント配
線板では、回路基板に対してフレキシブルプリント配線
板がねじれたり、またはフレキシブルプリント配線板に
ねじれを伴う剥離力が働いたりすると、回路基板より剥
離しやすい欠点があった。[Problems to be Solved by the Invention] However, in the above-described conventional flexible printed wiring board, if the flexible printed wiring board is twisted with respect to the circuit board or a peeling force accompanied by twisting acts on the flexible printed wiring board, the circuit is damaged. There was a disadvantage that it was easily peeled from the substrate.
たとえば、第４図及び第５図に示すフレキシブルプリ
ント配線板１に、ねじれが発生すると、接着部分12と未
着部分13との境界線1Bの両端の一方に最大の剥離力が集
中し、剥離力が集中した端から順に剥離がはじまる。For example, when the flexible printed wiring board 1 shown in FIGS. 4 and 5 is twisted, the maximum peeling force is concentrated on one of both ends of the boundary 1B between the bonded portion 12 and the unattached portion 13, and the peeling is performed. Peeling starts from the end where the force is concentrated.
本発明はこのような課題に鑑みなされたものであり、
特にねじれに対する回路基板との耐剥離性が秀れたフレ
キシブルプリント配線板を提供することを目的とするも
のである。The present invention has been made in view of such problems,
In particular, it is an object of the present invention to provide a flexible printed wiring board having excellent resistance to peeling from a circuit board against torsion.
［課題を解決するための手段］ 本発明は、回路基板の回路と導通される導体パターン
をもち、前記回路基板に付着される付着部分と、前記付
着されない未着部分とからなるフレキシブルプリント配
線板において、 前記未着部分は前記付着部分の近傍に位置して配線幅
を圧縮して狭巾とされた狭巾状部を有し、前記狭巾状部
の前記付着部分側の端部は前記付着部分に向けて近づく
につれて次第に広幅化される傾斜部からなり、前記付着
部分の前記未着部分側の辺は前記傾斜部の両端との境界
から前記未着部分の幅方向外側へ延設されていることを
特徴とする。[Means for Solving the Problems] The present invention provides a flexible printed wiring board having a conductor pattern that is electrically connected to a circuit on a circuit board, the flexible printed wiring board comprising an attached portion attached to the circuit board and an unattached portion not attached. The non-attached portion has a narrow width portion which is located near the attachment portion and has a reduced width by compressing a wiring width, and an end of the narrow width portion on the attachment portion side is the It is composed of an inclined portion that is gradually widened as approaching the attached portion, and the side of the attached portion on the non-attached portion side extends from a boundary between both ends of the inclined portion to the outside in the width direction of the unattached portion. It is characterized by having.
回路基板は、配線用の導体パターンを少なくともその
一面に形成された絶縁基板であり、他に回路部品を搭載
し得る。回路基板は、例えばガラスパネル、プリント配
線板及びフレキシブルプリント配線板で構成することが
できる。The circuit board is an insulating board having a conductor pattern for wiring formed on at least one surface thereof, and may have other circuit components mounted thereon. The circuit board can be composed of, for example, a glass panel, a printed wiring board, and a flexible printed wiring board.
フレキシブルプリント配線板は、可撓性をもった配線
板であり、少なくとも一面に配線用の導体パターンをも
つ。フレキシブルプリント配線板は回路部品を搭載し得
る。A flexible printed wiring board is a wiring board having flexibility, and has a conductor pattern for wiring on at least one surface. The flexible printed wiring board can carry circuit components.
回路基板とフレキシブルプリント配線板とは、付着部
分にて電気的に接続されればよく、圧接や導電性接着剤
による接着などにより、相互に付着することができる。The circuit board and the flexible printed wiring board only need to be electrically connected at the attachment portion, and they can be attached to each other by press-fitting or bonding with a conductive adhesive.
［作用］ 本発明のフレキシブルプリント配線板において、回路
基板に付着されるフレキシブルプリント配線板は、その
付着部分近傍の未着部分において、上述のように狭巾状
部を有している。これによって、フレキシブルプリント
配線板の、ねじれ乃至ねじれを伴う剥離に対して、大き
な耐剥離性を持ち得る。即ち、たとえフレキシブルプリ
ント配線板の近傍にてねじれが発生しても、ねじれやす
い未着部分における狭巾状の狭巾状部がねじれ、付着部
分に伝達されるねじれ応力を減少させることができる。
つまり、ねじれやすい前記狭巾状部がねじれを吸収する
ことによって、付着部分にねじれ応力を発生しにくくし
ている。[Operation] In the flexible printed wiring board of the present invention, the flexible printed wiring board attached to the circuit board has the narrow width portion in the unattached portion near the attached portion as described above. Thereby, the flexible printed wiring board can have great peeling resistance against torsion or peeling accompanied by torsion. That is, even if twisting occurs in the vicinity of the flexible printed wiring board, the narrow width portion in the unattached portion that is easily twisted is twisted, and the torsional stress transmitted to the attached portion can be reduced.
That is, the narrow width portion that is easily twisted absorbs torsion, thereby making it difficult to generate torsional stress in the attached portion.
また、フレキシブルプリント配線板にねじりを伴う剥
離力が加わっても、狭巾状部の存在により、ねじりを伴
う剥離力は、一度狭巾状部で絞られてから付着部分に作
用する。従って、狭巾状部は、付着部分の未着部分側の
辺の一端に応力が集中することを防止する。Further, even if a peeling force with twist is applied to the flexible printed wiring board, the peeling force with torsion is once narrowed down by the narrow width portion and acts on the adhered portion due to the presence of the narrow width portion. Therefore, the narrow portion prevents stress from being concentrated on one end of the side of the non-attached portion side of the attached portion.
更に、本発明では、狭巾状部の付着部分側の端部が付
着部分に近づくにつれて次第に広幅化された傾斜部とな
っているので狭巾状部がねじれてもこの傾斜部はねじれ
にくくなり、更に、付着部分の未着部分側の辺は傾斜部
の両端との境界から未着部分の幅方向外側へ延設されて
いるので、傾斜部がねじれても付着部分はねじれによる
剥離が生じにくくなっている。Furthermore, in the present invention, the end portion of the narrow portion on the side of the adhering portion is an inclined portion that is gradually widened as approaching the adhering portion, so that even if the narrow portion is twisted, the inclined portion is less likely to be twisted. Furthermore, since the side of the unattached portion side of the attached portion extends from the boundary with both ends of the inclined portion to the outside in the width direction of the unattached portion, even if the inclined portion is twisted, the attached portion may peel off by twisting. It has become difficult.
［実施例］ 実施例１ 本発明のフレキシブルプリント配線板の一実施例を、
図面により説明する。[Example] Example 1 An example of the flexible printed wiring board of the present invention is described below.
This will be described with reference to the drawings.
第１図はガラス表示パネルに接着された本実施例のフ
レキシブルプリント配線板をｘ方向（第２図参照）から
見た平面図、第２図はその側面図である。なお本明細書
では、各図の同一機能の構成要素には同一の番号を付し
て説明を進める。FIG. 1 is a plan view of the flexible printed wiring board of this embodiment bonded to a glass display panel as viewed from the x direction (see FIG. 2), and FIG. 2 is a side view thereof. Note that, in this specification, components having the same functions in the respective drawings will be denoted by the same reference numerals, and the description will proceed.
このフレキシブルプリント配線板１は、ポリエステル
フィルム製のフレキシブルテープ10と、その一面1Aに互
いに平行に配設された複数本の銅箔製の導体パターン11
とからなる。フレキシブルプリント配線板１は、導電性
接着剤（商品名日立化成製のアニソルム）によりガラス
表示パネル２に接着されている。その結果、フレキシブ
ルプリント配線板１は、ガラス表示パネル２に接着され
た接着部分12と、ガラス表示パネル２に接着されない未
着部分13とをもち、接着部分12と未着部分13とは、長方
形状の接着部分12の未着部分13側の長辺12Aにより区分
されている。また、未着部分13の内の接着部分12に近接
する領域は、未着部分13の他の部分及び接着部分12より
も狭巾に形成された狭巾状部13Bとなっている。各導体
パターン11の相互の間隔は、狭巾状部13Bにおいて縮小
されている。This flexible printed wiring board 1 includes a flexible tape 10 made of a polyester film and a plurality of conductor patterns 11 made of copper foil disposed on one surface 1A thereof in parallel with each other.
Consists of The flexible printed wiring board 1 is adhered to the glass display panel 2 by a conductive adhesive (trade name: Anisorm, manufactured by Hitachi Chemical). As a result, the flexible printed wiring board 1 has an adhesive portion 12 adhered to the glass display panel 2 and an unattached portion 13 not adhered to the glass display panel 2, and the adhesive portion 12 and the unattached portion 13 are rectangular. It is divided by the long side 12A of the non-attached portion 13 side of the adhesive portion 12 in a shape. The area of the unattached portion 13 adjacent to the adhesive portion 12 is a narrow portion 13B formed to be narrower than the other portions of the unattached portion 13 and the adhesive portion 12. The distance between the conductor patterns 11 is reduced in the narrow width portion 13B.
ガラス表示パネル２は、その一面2Aに複数本の銅箔製
の導体パターン21をもつ。ガラス表示パネル２の各導体
パターン21は、フレキシブルプリント配線板１の接着部
分12において、前記導電性接着剤によりフレキシブルプ
リント配線板１の各導体パターン11と個別に接続されて
いる。The glass display panel 2 has a plurality of conductor patterns 21 made of copper foil on one surface 2A. Each conductive pattern 21 of the glass display panel 2 is individually connected to each conductive pattern 11 of the flexible printed wiring board 1 at the bonding portion 12 of the flexible printed wiring board 1 by the conductive adhesive.
上記したフレキシブルプリント配線板１は接着部分12
に近接して狭巾状部13Bをもつので、もしこのフレキシ
ブルプリント配線板１にねじれが発生しても、ねじれの
大部分はねじれやすい（ねじれに対する抵抗が少ない）
狭巾状部13Bで発生し、接着部分12に加わる剥離力を小
さくすることができる。The above-mentioned flexible printed wiring board 1 has an adhesive portion 12
Has a narrow width portion 13B close to the flexible printed wiring board 1, even if the flexible printed wiring board 1 is twisted, most of the twist is easy to be twisted (there is little resistance to twisting).
The peeling force generated in the narrow portion 13B and applied to the bonding portion 12 can be reduced.
また、狭巾状部13Bの内、狭巾状部の接着部分側の端
部は、付着部分に向けて近づくにつれて次第に広幅化さ
れる傾斜部13Cとなっており、これにより狭巾状部13Bの
最も狭巾の部分がねじれても、それに隣接するこの傾斜
部13Cが次第に広巾とされた分だけねじれにくくなって
おり、これにより未着部分13から狭巾状部13Bの端部13A
に伝達される剥離力は減少する。更に、狭巾状部13Bの
接着部分12側の端部13A、13Aは、長方形の接着部分12の
未着部分13側の一辺12Aの途中に形成されている。Also, of the narrow portion 13B, the end of the narrow portion on the side of the adhesive portion is an inclined portion 13C that is gradually widened as approaching the adhering portion, thereby forming the narrow portion 13B. Even if the narrowest part of the part is twisted, it is difficult to twist as the inclined part 13C adjacent to it gradually widens, so that the end 13A of the narrow part 13B from the unattached part 13
The peel force transmitted to the wire is reduced. Further, the ends 13A, 13A of the narrow width portion 13B on the side of the bonding portion 12 are formed in the middle of one side 12A of the rectangular bonding portion 12 on the side of the non-bonding portion 13.
本実施例では、実施例１の場合と同様に、狭巾状部13
Bによりねじれを吸収できるので、フレキシブルプリン
ト配線板１のねじれによる接着部分12の耐剥離性を改善
できる。In the present embodiment, as in the case of the first embodiment, the narrow width portion 13 is formed.
Since the twist can be absorbed by B, the peeling resistance of the bonded portion 12 due to the twist of the flexible printed wiring board 1 can be improved.
更に、フレキシブルプリント配線板１にねじれを伴う
剥離力が加わった場合、即ち、狭巾状部13Bの端部13A、
13Aに剥離応力が集中しても、端部13A、13Aから更に接
着部分12が外延しているので、端部13Aからの剥離が発
生しにくくなる。Furthermore, when a peeling force accompanied by twisting is applied to the flexible printed wiring board 1, that is, the ends 13A of the narrow width portion 13B,
Even if the peeling stress is concentrated on 13A, since the bonding portion 12 further extends from the ends 13A, 13A, peeling from the end 13A is less likely to occur.
なお、本発明のフレキシブルプリント配線板１におい
て、狭巾状部13Bの形状及び接着部材12の形状は前記し
た実施例に限定されるものでは無く、本発明の趣旨を逸
脱しない範囲において変更可能である。Note that, in the flexible printed wiring board 1 of the present invention, the shape of the narrow-width portion 13B and the shape of the adhesive member 12 are not limited to the above-described embodiment, and can be changed without departing from the spirit of the present invention. is there.
［発明の効果］ 以上説明したように本発明は、回路基板との付着部分
の近傍の未着部分に形成された狭巾状部によって、未着
部分に発生したねじれを吸収緩和でき、付着部分の耐剥
離性を向上したフレキシブルプリント配線板を提供する
ことができる。[Effects of the Invention] As described above, according to the present invention, the torsion generated in the non-attached portion can be absorbed and reduced by the narrow width portion formed in the non-attached portion near the adhering portion with the circuit board, and the adhering portion can be absorbed. And a flexible printed wiring board with improved peel resistance.
更に本発明によれば、狭巾状部の付着部分側の端部が
付着部分に向けて近づくにつれて次第に広幅化される傾
斜部からなるので狭巾状部がねじれてもこの傾斜部はね
じれにくくなり、更に、付着部分の未着部分側の辺は傾
斜部の両端との境界から未着部分の幅方向外側へ延設さ
れて、付着部分が傾斜部より上記の如く更に広幅化され
ているので、付着部分への剥離力（捩じれモーメント）
の伝達の抑止により付着部分の剥離は一層生じにくくな
っている。更に、付着部分の未着部分側の辺は傾斜部の
両端との境界から未着部分の幅方向外側へ延設されてい
るので、傾斜部がねじれても付着部分にねじれによる剥
離が一層生じにくくなっている。Furthermore, according to the present invention, since the end of the narrow-width portion on the attachment portion side gradually becomes wider as approaching to the attachment portion, the slope portion is hardly twisted even if the narrow-width portion is twisted. Further, the side of the unattached portion side of the attached portion extends from the boundary with both ends of the inclined portion outward in the width direction of the unattached portion, and the attached portion is further wider than the inclined portion as described above. Therefore, peeling force (torsion moment) to the adhered part
The separation of the adhered portion is more unlikely to occur due to the suppression of the transmission of heat. Furthermore, since the side of the unattached portion side of the attached portion extends from the boundary with both ends of the inclined portion to the outside in the width direction of the unattached portion, even if the inclined portion is twisted, further peeling due to twisting occurs in the attached portion. It has become difficult.
第１図はガラス表示パネルに接着された本発明のフレキ
シブルプリント配線板の一実施例を示す平面図、第２図
はその側面図、第３図はガラス表示パネルに接着された
本発明のフレキシブルプリント配線板の他の一実施例を
示す平面図である。第４図はガラス表示パネルに接着さ
れた従来のフレキシブルプリント配線板を示す平面図、 １……フレキシブルプリント配線板 ２……ガラス表示パネル 11……導体パターン 12……接着部分（付着部分） 13……未着部分 13B……狭巾状部FIG. 1 is a plan view showing an embodiment of the flexible printed wiring board of the present invention bonded to a glass display panel, FIG. 2 is a side view thereof, and FIG. 3 is a flexible board of the present invention bonded to a glass display panel. FIG. 9 is a plan view showing another embodiment of the printed wiring board. FIG. 4 is a plan view showing a conventional flexible printed wiring board bonded to a glass display panel, 1... A flexible printed wiring board 2... A glass display panel 11... A conductive pattern 12. …… Unattached part 13B …… Narrow width part
Claims (1)
をもち、前記回路基板に付着される付着部分と、前記付
着されない未着部分とからなるフレキシブルプリント配
線板において、 前記未着部分は前記付着部分の近傍に位置して配線幅を
圧縮して狭巾とされた狭巾状部を有し、前記狭巾状部の
前記付着部分側の端部は前記付着部分に向けて近づくに
つれて次第に広幅化される傾斜部からなり、前記付着部
分の前記未着部分側の辺は前記傾斜部の両端との境界か
ら前記未着部分の幅方向外側へ延設されていることを特
徴とするフレキシブルプリント配線板。1. A flexible printed wiring board having a conductor pattern electrically connected to a circuit of a circuit board and comprising an attached portion attached to the circuit board and an unattached portion not attached, wherein the unattached portion is It has a narrow portion which is located in the vicinity of the attaching portion and has a narrow width by compressing the wiring width, and the end of the narrow portion on the attaching portion side gradually approaches the attaching portion. A flexible portion, which is formed of a widened inclined portion, wherein a side of the unattached portion side of the attached portion extends outward from a boundary between both ends of the inclined portion to a width direction outside of the unattached portion. Printed wiring board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63100616A JP2600276B2 (en) | 1988-04-22 | 1988-04-22 | Flexible printed wiring board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63100616A JP2600276B2 (en) | 1988-04-22 | 1988-04-22 | Flexible printed wiring board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01270387A JPH01270387A (en) | 1989-10-27 |
| JP2600276B2 true JP2600276B2 (en) | 1997-04-16 |
Family
ID=14278776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63100616A Expired - Fee Related JP2600276B2 (en) | 1988-04-22 | 1988-04-22 | Flexible printed wiring board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2600276B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0745898Y2 (en) * | 1990-02-26 | 1995-10-18 | 日本電気株式会社 | Heat seal connector |
| DE19536131C2 (en) * | 1995-09-28 | 2002-05-02 | Saint Gobain Sekurit D Gmbh | Diversity antenna disc for vehicles with connection elements |
| KR102464217B1 (en) * | 2015-11-05 | 2022-11-08 | 삼성디스플레이 주식회사 | Flexible printed circuit board and display apparatus including the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5319914Y2 (en) * | 1974-08-23 | 1978-05-26 | ||
| JPS6116708U (en) * | 1984-07-02 | 1986-01-31 | 九州日立マクセル株式会社 | head cleaner |
-
1988
- 1988-04-22 JP JP63100616A patent/JP2600276B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01270387A (en) | 1989-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |