JPH04183767A - Tape for fixing tab film to be used in assembling liquid crystal display - Google Patents
Tape for fixing tab film to be used in assembling liquid crystal displayInfo
- Publication number
- JPH04183767A JPH04183767A JP2314992A JP31499290A JPH04183767A JP H04183767 A JPH04183767 A JP H04183767A JP 2314992 A JP2314992 A JP 2314992A JP 31499290 A JP31499290 A JP 31499290A JP H04183767 A JPH04183767 A JP H04183767A
- Authority
- JP
- Japan
- Prior art keywords
- tape
- adhesive
- liquid crystal
- printed circuit
- tab film
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 16
- 239000000853 adhesive Substances 0.000 claims abstract description 24
- 230000001070 adhesive effect Effects 0.000 claims abstract description 24
- 239000010408 film Substances 0.000 abstract description 26
- 229920003002 synthetic resin Polymers 0.000 abstract description 2
- 239000000057 synthetic resin Substances 0.000 abstract description 2
- 239000010409 thin film Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 230000010485 coping Effects 0.000 abstract 1
- 239000006071 cream Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 229910000679 solder Inorganic materials 0.000 description 7
- 239000002390 adhesive tape Substances 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
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
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/303—Surface mounted components, e.g. affixing before soldering, aligning means, spacing means
-
- 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
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、卓上電子計算機、電子映像機器などの液晶デ
イスプレィ組立工程において使用される仮止めテープに
関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a temporary fixing tape used in the assembly process of liquid crystal displays of desktop electronic computers, electronic video equipment, etc.
〈従来技術〉
液晶デイスプレィの組立工程においでは、第４図に示す
ように、ＬＳＩ（大規模集積回路）やＩＣなどからなる
ドライバー回路を取付けＴＡＢ（ｔａｐｅ ａｕｔｏ
ｍａｔｅｄ ｂｏｎｄｉｎｇ：タブ）フィルム５（以
下、タブフィルムと略称する）と、該タブフィルムによ
って接続される液晶パネル６とプリント基板７との接続
は、該タブフィルム５のｌｌ１ｌ縁５ａを異方性導電接
着剤層を介して液晶パネル６の端縁部６ａに熱圧着し、
他側縁５ｂをプリント基板７にクリーム半田により＃に
続するのであるが、通常タブフィルムはロール巻きした
ものを順次伸ばして使用するため、その巻ぐせ（反り変
形）がタブフィルムの他側に残って影響しタブフィルム
が浮き上がったり、反り返ったりして完全、良好なりリ
ーム半田付けができないので、手作業によってプリント
基板７の配線パターン８を避けて数箇所に予め接着剤１
°を置いてタブフィルムの他側縁５ｂ寄りと該プリント
基板７とを仮接着しておき、次工程で、タブフィルムの
他側縁５ｂとプリント基板上に載せたクリーム半田４と
を加熱して半田接続するようにしていた。<Prior art> In the assembly process of a liquid crystal display, as shown in Figure 4, a driver circuit consisting of an LSI (Large Scale Integrated Circuit) or an IC is mounted and a TAB (tape auto
The connection between the mated bonding (tab) film 5 (hereinafter abbreviated as tab film) and the liquid crystal panel 6 and printed circuit board 7 that are connected by the tab film is achieved by anisotropically conducting the 111 edges 5a of the tab film 5. Bonded by thermocompression to the edge 6a of the liquid crystal panel 6 via an adhesive layer,
The other side edge 5b is connected to the printed circuit board 7 with cream solder, but since the tab film is normally used after being rolled up and rolled out one after another, the curling (warping deformation) will cause the other side of the tab film to As a result, the tab film may lift up or warp, making it impossible to perform complete and good ream soldering.
The other side edge 5b of the tab film and the printed circuit board 7 are temporarily bonded at a certain angle, and in the next step, the other side edge 5b of the tab film and the cream solder 4 placed on the printed circuit board are heated. I was trying to connect it by soldering.
〈発明が解決しようとする課題〉
上記従来技術の接着剤による仮接着では、接着剤の量が
均一にならず多少を生じたり、プリント基板上への配置
が悪かったりして接着箇所からはみ出て該プリント基板
の配線パターンに接着剤が付着して不良品にしてしまう
事故が少なからず発生していた。しかも、接着剤の配置
は手作業である為に熟練と要するが、それ許ってなく人
手と時間を要し、効率が悪かった。<Problems to be Solved by the Invention> In temporary bonding using the adhesive of the above-mentioned prior art, the amount of adhesive may not be uniform and may be uneven, or may be improperly placed on the printed circuit board and may protrude from the bonded area. There have been quite a few accidents in which the adhesive adheres to the wiring patterns of the printed circuit boards, resulting in defective products. Moreover, the placement of the adhesive is done by hand and requires skill, which is not allowed and requires manpower and time, resulting in poor efficiency.
そこで本発明は、上記従来力欠点や問題点を一挙に解決
する手段として組立工程を簡単にし、流れ作業に十分対
応でき、しかもプリント基板とタブフィルムの仮接着が
確実な仮止めテープを開発したのである。Therefore, the present invention has developed a temporary adhesive tape that simplifies the assembly process, is fully compatible with assembly line work, and is capable of reliably temporarily adhering printed circuit boards and tab films as a means of solving the above-mentioned conventional shortcomings and problems at once. It is.
く課題を解決する為の手段〉
本発明の仮止めテープは、所定細幅の薄い台紙の１面に
、プリント基板の配線パターン間隔に対応して接着可能
な所定箇所毎に膜状の両面接着可能な接着剤を貼設して
なるもので、露出面を剥離紙で覆っている。Means for Solving the Problems> The temporary adhesive tape of the present invention has a film-like double-sided adhesive bonded to one side of a thin mount having a predetermined narrow width at predetermined locations that can be bonded in accordance with the wiring pattern spacing of a printed circuit board. The exposed surface is covered with release paper.
く作用〉
液晶デイスプレィ組立工程において、液晶パネルとタブ
フィルムの１側縁を熱圧着し、プリント基板のクリーム
半田付は位置寄りに、剥離紙から剥離した仮止めテープ
の接着剤貼設面を接着し、該仮止めテープの台紙を剥離
して接着剤を露出させた後、プリント基板上の該接着剤
にタブフィルムの他側縁を重ねて接着し、該タブフィル
ムにより液晶パネルと仮止め連結したプリント基板の前
記クリーム半田付は部分にクリーム半田を施して、加熱
して該タブフィルムの端縁とプリント基板に一体的にク
リーム半田付けする。In the liquid crystal display assembly process, one side edge of the liquid crystal panel and the tab film are bonded together by thermocompression, and the adhesive side of the temporary tape that has been peeled off from the release paper is glued to the position of the cream soldering of the printed circuit board. Then, after peeling off the backing paper of the temporary fixing tape to expose the adhesive, the other side edge of the tab film is overlapped and adhered to the adhesive on the printed circuit board, and the tab film is used to temporarily connect the liquid crystal panel. For the cream soldering of the printed circuit board, cream solder is applied to the portion, heated, and cream soldered integrally to the edge of the tab film and the printed circuit board.
・〈実施例〉
実施例を図面により説明すると、第１図は、仮止めテー
プＡの平面図で、細幅の薄い台紙２の１面に薄い膜状の
接着剤１を所定間隔毎に塗布してなり、該接着剤１は両
面接着剤で、材質に制限はないが通常、従来公知の市販
の合成樹脂接着剤てあり、精密度を要求される液晶デイ
スプレィ組立のための仮止め用であるからその接着がタ
ブフィルムやプリント基板に悪影響を及ぼさないように
極めて薄い膜状であるが台紙、剥離紙からは剥れやすく
、プリント基板との接着は確実なものである。台紙の長
さ、幅は、液晶パネルの大小により決定され、通常は約
２鰭〜１０＋＋＋ｓ位であり、紙質。・〈Example〉 To explain the example using drawings, Fig. 1 is a plan view of temporary adhesive tape A, in which a thin film-like adhesive 1 is applied at predetermined intervals on one side of a narrow and thin mount 2. The adhesive 1 is a double-sided adhesive, and although the material is not limited, it is usually a conventionally known commercially available synthetic resin adhesive, and is used for temporary fixing for assembling a liquid crystal display that requires precision. Because of this, it is in the form of an extremely thin film so that its adhesion does not adversely affect the tab film or printed circuit board, but it easily peels off from the mount and release paper, and the adhesion to the printed circuit board is reliable. The length and width of the mount are determined by the size of the liquid crystal panel, and are usually about 2 fins to 10+++s, and the paper quality.
薄さに特に限定はないが比較的硬質であって、組立工程
中にプリント基板への載置に好都合なものであれば足り
る。柔軟１紙では作業がし難い。There is no particular limitation on the thickness, but it is sufficient as long as it is relatively hard and convenient for mounting on a printed circuit board during the assembly process. It is difficult to work with a single piece of flexible paper.
第２図は１本発明仮止めテープＡ３取り扱い易い商品と
して製造した状態の正面図で、１枚の剥離紙３の表面に
多数の仮止めテープＡを並列してなるが、該仮止めテー
プも剥離紙も予めそれぞれ所定面積の大きい１枚ものと
して製造し、該仮止めテープの接着剤によって貼り合わ
せ、該テープだけに所定幅に切り目を入れて作成する６
なお、該テープ上に塗布した接着剤１．１、・・・の間
隔は、プリント基板７の配置パターン８により、それを
選けた位置として設定されている。FIG. 2 is a front view of the temporary fixing tape A3 of the present invention manufactured as an easy-to-handle product, in which a large number of temporary fixing tapes A are arranged in parallel on the surface of one release paper 3. The release paper is also manufactured in advance as a single piece with a large predetermined area, and is pasted together using the adhesive of the temporary fixing tape, and a cut is made to a predetermined width only on the tape.6
Incidentally, the intervals between the adhesives 1.1, .
第３図は、液晶パネル６とプリント基板７をタブフィル
ム５、クリーム半田４によって結合した状態の縦断面を
示すものであり、その工程は、液晶パネル６とタブフィ
ルム５を夫々１側縁６ａ。FIG. 3 shows a longitudinal section of a state in which the liquid crystal panel 6 and the printed circuit board 7 are bonded together using the tab film 5 and the cream solder 4. In this process, the liquid crystal panel 6 and the tab film 5 are bonded to one side edge 6a. .
５ａ同士で熱圧着し、剥離紙３から外した仮止めテープ
Ａを台紙ごとその接着剤面によりプリント基板７の所定
位置に接着したのち、該台紙２を剥がしで露出した接着
剤１でタブフィルム５のｍ！、側ＭＳｂ寄りを接着し、
タブフィルム５の端縁に対応するプリント基板７上にク
リーム半田４を配置し、クリーム半田４を加熱熔融させ
てタブフィルムの配線パターンとプリント基板上の配線
パターンとを一体的に結合して液晶ディスプレーを組立
てる。なお１図面のように接着剤１が残っても製品には
なんら悪影響はないものである。図中、９はＬＳＩやＩ
Ｃなどからなるドライバー回路を示す。5a are heat-pressed together, and the temporary adhesive tape A removed from the release paper 3 is adhered to a predetermined position on the printed circuit board 7 with the adhesive surface of the mount, and then the tab film is attached using the adhesive 1 exposed by peeling off the mount 2. 5 m! , glue the side MSb side,
A cream solder 4 is placed on the printed circuit board 7 corresponding to the edge of the tab film 5, and the cream solder 4 is heated and melted to integrally bond the wiring pattern on the tab film and the wiring pattern on the printed circuit board to form a liquid crystal display. Assemble the display. Note that even if the adhesive 1 remains as shown in Figure 1, there will be no adverse effect on the product. In the figure, 9 is an LSI or I
This shows a driver circuit made of C and the like.
〈発明の効果〉
上記の構成、作用を有する本発明の仮止めテープは、台
紙上に所定間隔ごとに膜状の接着剤を塗布してなる極め
て簡単な構成であるが呟その組立は容易、簡単であり、
液晶デイスプレィの組立に際して薄いタブフィルムとプ
リント基板とを仮止めする作業も、単に仮止めテープを
プリント基板の所定位置に前工程で予めセ・ントシてお
くだけで良く、次ぎの工程において剥離紙を剥がしてり
プフイルムを載せて手指で軽く押さえることに上りでプ
リント基板とタブフィルムが確実に仮止め接着できてそ
の接着剤が不本意にはみだしてプリント配線などを汚損
したり故１１Ｅ３せるようなおそれが全くなくなり、従
来の手作業による接着剤の配置のような人手、時間を要
さず、製造効率が著しく向上し、商品の信頼性も増し、
コストダウンも可能となった。<Effects of the Invention> The temporary fixing tape of the present invention having the above-described structure and function has an extremely simple structure in which a film of adhesive is applied at predetermined intervals on a mount, but it is easy to assemble. It's easy and
When assembling a liquid crystal display, the work of temporarily fixing the thin tab film and the printed circuit board can be done simply by setting the temporary fixing tape in a predetermined position on the printed circuit board in the previous process, and then attaching the release paper in the next process. Peeling off the film and pressing it lightly with your fingers will ensure that the printed circuit board and tab film are temporarily bonded, and the adhesive may inadvertently spill out, staining printed wiring, etc., or causing 11E3 damage. This eliminates the need for manpower and time required for traditional manual adhesive placement, significantly improving manufacturing efficiency and increasing product reliability.
It has also become possible to reduce costs.
図面は、本発明の仮止めテープの実施例を示し、第１図
は、平面図、
第２図は、商品とした状態の正面図、
第３図は、本発明の仮止めテープを使用し、クリーム半
田でタブフィルム、液晶パネル、プリント基板を結合し
た状態の縦断面図、
第４図は、従来例を示す要部平面図である。The drawings show examples of the temporary fixing tape of the present invention, FIG. 1 is a plan view, FIG. 2 is a front view of the product, and FIG. 3 is an example of the temporary fixing tape of the present invention. , a vertical cross-sectional view of a tab film, a liquid crystal panel, and a printed circuit board bonded together with cream solder; FIG. 4 is a plan view of essential parts showing a conventional example.
Claims (1)
に対応する間隔をおいて両面接着可能な接着剤を膜状に
塗布してなる液晶ディスプレー組立時使用のタブフィル
ム固定用テープ。1. A tab film fixing tape for use when assembling a liquid crystal display, which is made by applying a double-sided adhesive in the form of a film on one side of a thin mount at intervals corresponding to the wiring patterns of the printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2314992A JPH0696696B2 (en) | 1990-11-19 | 1990-11-19 | Tape for temporary fixing of TAB film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2314992A JPH0696696B2 (en) | 1990-11-19 | 1990-11-19 | Tape for temporary fixing of TAB film |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6098928A Division JP2642061B2 (en) | 1994-05-12 | 1994-05-12 | Liquid crystal display device and assembling method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04183767A true JPH04183767A (en) | 1992-06-30 |
| JPH0696696B2 JPH0696696B2 (en) | 1994-11-30 |
Family
ID=18060108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2314992A Expired - Lifetime JPH0696696B2 (en) | 1990-11-19 | 1990-11-19 | Tape for temporary fixing of TAB film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0696696B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0772493A (en) * | 1993-09-06 | 1995-03-17 | Katoo Seiko:Kk | Method for assembling liquid crystal display |
| US5724056A (en) * | 1994-09-02 | 1998-03-03 | Kabushiki Kaisha Kato Seiko | Method for constructing a liquid crystal display |
| US6475314B1 (en) | 1995-11-17 | 2002-11-05 | Sharp Kabushiki Kaisha | Adhesive lamination useful in making circuit board structures |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5277147A (en) * | 1975-12-24 | 1977-06-29 | Atsumi Kashiwagi | Doubleeadhesive tape |
-
1990
- 1990-11-19 JP JP2314992A patent/JPH0696696B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5277147A (en) * | 1975-12-24 | 1977-06-29 | Atsumi Kashiwagi | Doubleeadhesive tape |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0772493A (en) * | 1993-09-06 | 1995-03-17 | Katoo Seiko:Kk | Method for assembling liquid crystal display |
| US5724056A (en) * | 1994-09-02 | 1998-03-03 | Kabushiki Kaisha Kato Seiko | Method for constructing a liquid crystal display |
| US6475314B1 (en) | 1995-11-17 | 2002-11-05 | Sharp Kabushiki Kaisha | Adhesive lamination useful in making circuit board structures |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0696696B2 (en) | 1994-11-30 |
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