JPH0828395B2 - Flexible circuit board and liquid crystal display device - Google Patents
Flexible circuit board and liquid crystal display deviceInfo
- Publication number
- JPH0828395B2 JPH0828395B2 JP2402456A JP40245690A JPH0828395B2 JP H0828395 B2 JPH0828395 B2 JP H0828395B2 JP 2402456 A JP2402456 A JP 2402456A JP 40245690 A JP40245690 A JP 40245690A JP H0828395 B2 JPH0828395 B2 JP H0828395B2
- Authority
- JP
- Japan
- Prior art keywords
- crystal display
- liquid crystal
- display device
- flexible circuit
- circuit board
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- 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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
-
- 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
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Printing Elements For Providing Electric Connections Between Printed Circuits (AREA)
- Wire Bonding (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
- Multi-Conductor Connections (AREA)
- Structure Of Printed Boards (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液晶表示装置に用いら
れるフレキシブル回路基板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible circuit board used in a liquid crystal display device.
【０００２】[0002]
【従来の技術】従来の液晶表示装置等に用いられるフレ
キシブル回路基板（以下ＣＯＦと略す）は、液晶表示素
子駆動用のＬＳＩチップが搭載されており、図４に示す
ように入力端子ａ〜ｈが出力端子１に対し平行に配置さ
れていた為、スルーホール６による上下導通をとった２
層基板を用いて、入力端子ａ〜ｈと信号線Ｂ〜Ｇを接続
していた。2. Description of the Related Art A flexible circuit board (hereinafter abbreviated as COF) used in a conventional liquid crystal display device or the like is provided with an LSI chip for driving a liquid crystal display element, and as shown in FIG. Is placed in parallel with the output terminal 1, so that the through hole 6 provides vertical conduction.
The input terminals a to h and the signal lines B to G were connected using a layer substrate.
【０００３】図５は、図４の概略図で液晶表示装置を展
開した状態を示してあり、完成体にする場合は、基板８
とＣＯＦ４を液晶表示素子７の裏側に折り曲げＺとＺを
ハンダ付等で接続する。FIG. 5 shows a developed state of the liquid crystal display device in the schematic view of FIG.
And COF 4 are connected to the back side of the liquid crystal display element 7 by bending B and Z by soldering or the like.
【０００４】[0004]
【発明が解決しようとする課題】しかし、前述の従来技
術では、ＣＯＦ４の入力端子２ａ〜ｈは信号線Ｂ〜Ｇに
対して平行に配置されている為端子ａ〜ｈと信号線５Ｂ
〜Ｇを接続する場合、他の信号線と直交を避ける為スル
ーホール６による上下導通をとった２層基板が必要とな
っていた。この為このような２層基板を使用した液晶表
示装置は高額な物になるという問題点を有する。そこで
本発明はこのような問題点を解決するもので、その目的
とするところは２層基板を不要とするフレキシブル回路
基板および安価で信頼性の高い液晶表示装置を提供する
ことにある。However, in the above-mentioned prior art, since the input terminals 2a to 2h of the COF 4 are arranged in parallel to the signal lines B to G, the terminals a to h and the signal line 5B are arranged.
In the case of connecting G to G, a two-layer board having vertical conduction by the through hole 6 is required in order to avoid orthogonality with other signal lines. Therefore, a liquid crystal display device using such a two-layer substrate has a problem that it is expensive. Therefore, the present invention solves such a problem, and an object of the present invention is to provide a flexible circuit board that does not require a two-layer board and an inexpensive and highly reliable liquid crystal display device.
【０００５】[0005]
【課題を解決するための手段】本発明のフレキシブル回
路基板は，ほぼ中央部にＬＳＩチップが搭載されてお
り，該ＬＳＩチップと接続される配線を有する出力端子
が一辺に形成されてなり，該一辺と交差する二辺の同一
面上には前記ＬＳＩチップと接続される配線を有する入
力端子が形成されてなることを特徴とする。A flexible circuit board according to the present invention has an LSI chip mounted substantially in the center thereof.
Output terminal having wiring connected to the LSI chip
Is formed on one side, and the two sides that intersect the one side are the same
It is characterized in that an input terminal having a wiring connected to the LSI chip is formed on the surface.
【０００６】本発明の液晶表示装置は，液晶表示素子
と，該液晶表示素子の端部と電気的接続される出力端子
が一辺に形成されてなり且つ該一辺と交差する二辺の同
一面上に入力端子が形成されてなる複数のフレキシブル
回路基板と，並設された前記フレキシブル回路基板間を
電気的接続するための複数の信号線が一方の面のみに形
成されてなる基板とを有し，前記フレキシブル回路基板
と前記基板とが重なるように配置されてなり，前記液晶
表示素子の端部と前記出力端子とが対向して配置され且
つ電気的接続されてなり，前記二辺の同一面上に形成さ
れた入力端子と前記信号線とが対向して配置され且つ電
気的接続されたことを特徴とする。The liquid crystal display device of the present invention comprises a liquid crystal display element.
And an output terminal electrically connected to the end of the liquid crystal display element
Is formed on one side and intersects the one side.
Multiple flexible connectors with input terminals formed on one surface
Between the circuit board and the flexible circuit boards installed side by side
Multiple signal lines for electrical connection are formed on one side only
A flexible circuit board comprising:
And the substrate are arranged so as to overlap each other, and the liquid crystal
An end of the display element and the output terminal are arranged to face each other and
Are electrically connected and are formed on the same surface of the two sides.
The input terminal and the signal line facing each other are
It is characterized by being physically connected .
【０００７】[0007]
【実施例】図１は、本発明の一実施例におけるＣＯＦ４
の配線図であって入力端子２のａ〜ｈを出力端子１に対
して垂直かつ各入力端子同志が平行に配置されている。
入力端子２のａとｈが同一線上に位置しているのは、各
ＣＯＦ４をカスケード接続する為である。また、カスケ
ード接続をしない場合は左右どちらか一方向に入力端子
を集約して配置することが可能である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows COF4 in one embodiment of the present invention.
2 is a wiring diagram in which the input terminals a to h are arranged vertically to the output terminal 1 and the input terminals are arranged in parallel with each other.
The reason that a and h of the input terminal 2 are located on the same line is because the COFs 4 are connected in cascade. When the cascade connection is not performed, the input terminals can be collectively arranged in one of the left and right directions.
【０００８】図２は、上記ＣＯＦを使用した液晶表示装
置の詳細図であって入力端子を出力に対し垂直にかつ各
入力端子が平行に配置してある為、信号線５のＢ〜Ｇに
対して平行となり、接続する基板８は、スルーホールに
よる上下導通を必要としない片面基板である。信号線５
のＢ〜ＧとＣＯＦの入力端子ａ〜ｈはハンダ付等で接続
する。液晶表示素子７と出力端子１とは異方性導電性接
着剤等で接続する。FIG. 2 is a detailed view of a liquid crystal display device using the COF. Since the input terminals are arranged vertically to the output and each input terminal is arranged in parallel, the signal lines 5 to B to G are arranged. The substrate 8 which is parallel to and connected to the substrate 8 is a single-sided substrate which does not require vertical conduction due to a through hole. Signal line 5
B to G and COF input terminals a to h are connected by soldering or the like. The liquid crystal display element 7 and the output terminal 1 are connected by an anisotropic conductive adhesive or the like.
【０００９】図３は、図２の概要図であって液晶表示装
置を展開した状態を示してあり、完成体にする場合は、
基板８とＣＯＦと４を液晶表示素子７の裏側に折り曲げ
ＺとＺ’をハンダ付等で接続する。FIG. 3 is a schematic view of FIG. 2, showing a state in which the liquid crystal display device is developed.
The substrate 8 and the COF 4 are connected to the back side of the liquid crystal display element 7 by bending Z and Z ′ by soldering or the like.
【００１０】以上のように構成したことにより、基板８
は片面のみにパターン形成すればよいので製造が容易且
つ工程の短縮を可能とした。このため液晶表示素子のコ
スト低減が達成された。With the above structure, the substrate 8
Since it is sufficient to form a pattern on only one side, manufacturing is easy and the process can be shortened. Therefore, the cost reduction of the liquid crystal display device has been achieved.
【００１１】又、ＣＯＦ４に実装されるＬＳＩチップ３
が基板８上の位置にくるので、液晶表示素子を完成体に
するためＣＯＦ４を折り曲げる工程においても基板８に
支えられて、折り曲げによる不良やＬＳＩチップ３への
衝撃を防止するという効果を有している。The LSI chip 3 mounted on the COF 4
Since it comes to the position on the substrate 8, it has the effect of being supported by the substrate 8 even in the step of bending the COF 4 to complete the liquid crystal display element, and preventing defects due to bending and impact on the LSI chip 3. ing.
【００１２】さらに、ＣＯＦ４と基板８との接続が１枚
のＣＯＦについて対向する二辺上でなされるので強固な
接続となっている。Further, the connection between the COF 4 and the substrate 8 is made on two opposite sides of one COF, so that the connection is strong.
【００１３】[0013]
【発明の効果】以上述べたように本発明によれば，特
に，出力端子が一辺に形成されてなり且つ該一辺と交差
する二辺の同一面上に入力端子が形成されてなる複数の
フレキシブル回路基板を用いたので，基板上に形成され
る信号線と同方向に対向させることが可能となり，よっ
て基板側の信号線は片側面のみでよく安価な基板を用い
ることが可能となる。さらに，前記フレキシブル回路基
板と前記基板とが重なるように配置されてなるので，実
装面積を低減するという効果も有している。As described above, according to the present invention, in particular, a plurality of flexible output terminals are formed on one side and input terminals are formed on the same plane of two sides intersecting the one side. Since the circuit board is used, the signal lines formed on the board can be made to face each other in the same direction, and thus the signal line on the board side can be provided on only one side surface and an inexpensive board can be used. Further, since the flexible circuit board and the board are arranged so as to overlap each other, there is an effect of reducing the mounting area.
【００１４】又、ＣＯＦと基板との接続も強個になり高
信頼性の液晶表示装置が得られる。Further, the connection between the COF and the substrate becomes strong, and a highly reliable liquid crystal display device can be obtained.
【図１】本発明のフレキシブル回路基板の一例を示す
図。FIG. 1 is a diagram showing an example of a flexible circuit board of the present invention.
【図２】本発明の液晶表示装置の要部拡大図。FIG. 2 is an enlarged view of a main part of the liquid crystal display device of the present invention.
【図３】本発明の液晶表示装置の概略図。FIG. 3 is a schematic view of a liquid crystal display device of the present invention.
【図４】従来の液晶表示装置の要部拡大図FIG. 4 is an enlarged view of a main part of a conventional liquid crystal display device.
【図５】従来の液晶表示装置の概略図。FIG. 5 is a schematic view of a conventional liquid crystal display device.
１ 出力端子 ２ 入力端子 ３ ＬＳＩチップ ４ ＣＯＦ ５ 信号線 ６ スルーホール ７ 液晶表示素子 ８ 基板 1 Output Terminal 2 Input Terminal 3 LSI Chip 4 COF 5 Signal Line 6 Through Hole 7 Liquid Crystal Display Element 8 Substrate
Claims (4)
り，該ＬＳＩチップと接続される配線を有する出力端子
が一辺に形成されてなり，該一辺と交差する二辺の同一
面上には前記ＬＳＩチップと接続される配線を有する入
力端子が形成されてなることを特徴とするフレキシブル
回路基板。1. An LSI chip is mounted almost at the center.
Output terminal having wiring connected to the LSI chip
Is formed on one side, and the two sides that intersect the one side are the same
A flexible circuit board having an input terminal having wiring connected to the LSI chip formed on the surface thereof.
電気的接続される出力端子が一辺に形成されてなり且つ
該一辺と交差する二辺の同一面上に入力端子が形成され
てなる複数のフレキシブル回路基板と，並設された前記
フレキシブル回路基板間を電気的接続するための複数の
信号線が一方の面のみに形成されてなる基板とを有し，
前記フレキシブル回路基板と前記基板とが重なるように
配置されてなり，前記液晶表示素子の端部と前記出力端
子とが対向して配置され且つ電気的接続されてなり，前
記二辺の同一面上に形成された入力端子と前記信号線と
が対向して配置され且つ電気的接続されたことを特徴と
する液晶表示装置。2. A liquid crystal display element and an end portion of the liquid crystal display element
An output terminal electrically connected is formed on one side and
Input terminals are formed on the same surface of two sides intersecting the one side.
And a plurality of flexible circuit boards that are arranged in parallel.
A plurality of flexible circuit boards for electrical connection
A substrate having a signal line formed on only one surface,
So that the flexible circuit board and the board overlap
The liquid crystal display element and the output end are arranged.
The child is placed opposite to and electrically connected,
The input terminal and the signal line formed on the same surface of the two sides
A liquid crystal display device, wherein the liquid crystal display device is arranged to face each other and is electrically connected .
が対向して配置され且つ異方性導電性接着剤を介して電
気的接続されてなることを特徴とする請求項２記載の液
晶表示装置。 3. The end portion of the liquid crystal display element and the output terminal
Are placed facing each other and are electrically connected via an anisotropic conductive adhesive.
3. The liquid according to claim 2, wherein the liquid is electrically connected.
Crystal display device.
と前記信号線とが対向して配置され且つハンダ付けによ
り電気的接続されたことを特徴とする請求項２記載の液
晶表示装置。 4. An input terminal formed on the same surface of the two sides.
And the signal line are arranged to face each other and
3. The liquid according to claim 2, wherein the liquid is electrically connected.
Crystal display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2402456A JPH0828395B2 (en) | 1990-12-14 | 1990-12-14 | Flexible circuit board and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2402456A JPH0828395B2 (en) | 1990-12-14 | 1990-12-14 | Flexible circuit board and liquid crystal display device |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9111474A Division JP2848379B2 (en) | 1997-04-28 | 1997-04-28 | Flexible circuit board and liquid crystal display |
| JP11147397A Division JP3147815B2 (en) | 1997-04-28 | 1997-04-28 | Flexible circuit board and liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04218933A JPH04218933A (en) | 1992-08-10 |
| JPH0828395B2 true JPH0828395B2 (en) | 1996-03-21 |
Family
ID=18512277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2402456A Expired - Lifetime JPH0828395B2 (en) | 1990-12-14 | 1990-12-14 | Flexible circuit board and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0828395B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104053297A (en) * | 2013-03-15 | 2014-09-17 | 国际商业机器公司 | Flexible rework device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW326083B (en) * | 1995-03-27 | 1998-02-01 | Seiko Electron Co Ltd | Liquid crystal display device |
| JP3025764B2 (en) * | 1998-03-05 | 2000-03-27 | シャープ株式会社 | Liquid crystal display |
| KR100385082B1 (en) | 2000-07-27 | 2003-05-22 | 삼성전자주식회사 | a liquid crystal display and a manufacturing method thereof |
| JP4059750B2 (en) * | 2002-10-28 | 2008-03-12 | シャープ株式会社 | Electronic module and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6294970A (en) * | 1985-10-21 | 1987-05-01 | Sharp Corp | Film carrier lsi |
-
1990
- 1990-12-14 JP JP2402456A patent/JPH0828395B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104053297A (en) * | 2013-03-15 | 2014-09-17 | 国际商业机器公司 | Flexible rework device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04218933A (en) | 1992-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |