JPH0588195A - Lcd driving circuit board - Google Patents
Lcd driving circuit boardInfo
- Publication number
- JPH0588195A JPH0588195A JP3250774A JP25077491A JPH0588195A JP H0588195 A JPH0588195 A JP H0588195A JP 3250774 A JP3250774 A JP 3250774A JP 25077491 A JP25077491 A JP 25077491A JP H0588195 A JPH0588195 A JP H0588195A
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- printed board
- electrodes
- drive circuit
- plate piece
- 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
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
Landscapes
- Liquid Crystal (AREA)
- Multi-Conductor Connections (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Structure Of Printed Boards (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液晶ディスプレイ用駆
動回路基板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive circuit board for a liquid crystal display.
【０００２】[0002]
【従来の技術】近年、平板型の表示パネルがＯＡ機器，
可搬型のテレビなど従来のＣＲＴに代り有効な情報端末
として実用化が進んでいる。平板型であるため奥行きが
小さく総合的に使い易く低価格になるからである。中で
も液晶ディスプレイ（以下ＬＣＤ）は消費電力が小さ
く、フルカラー表示も可能であり広く普及されつつあ
る。基本的なＬＣＤの構造は薄膜能動素子をマトリック
ス上に１０数万個配列した表示部と端子電極とから構成
される。図３に示すようにその薄膜能動素子を駆動する
ために端子電極に接続される駆動回路用プリント基板３
２と共通回路用フレキシブルプリント基板３１とがＬＣ
Ｄの周辺に設置され電気的に接続して表示させる。2. Description of the Related Art In recent years, flat panel display panels have been used for OA equipment,
It is being put to practical use as an effective information terminal replacing a conventional CRT such as a portable TV. This is because the flat plate type has a small depth and is easy to use comprehensively and at a low price. Among them, liquid crystal displays (hereinafter referred to as LCDs) have low power consumption and are capable of full-color display, and are becoming widely used. The basic LCD structure is composed of a display unit in which hundreds of thousands of thin film active elements are arranged on a matrix and a terminal electrode. As shown in FIG. 3, a drive circuit printed circuit board 3 connected to a terminal electrode for driving the thin film active element.
2 and the flexible printed circuit board 31 for common circuit are LC
It is installed around D and electrically connected to display.
【０００３】[0003]
【発明が解決しようとする課題】この従来のＬＣＤ駆動
回路プリント基板３２の接続は、接続される相手側の共
通回路フレキシブルプリント基板３１の接続部周辺が、
駆動ＩＣ３５の上部で平行にＬＣＤ駆動回路プリント基
板３２を接続することができなかった。このためフレキ
シブルプリント基板を曲げて接続していたが曲げストレ
スがこの接続部分にかかるばかりでなく、接続作業性に
おいても曲げに対する反発力により、位置合せを正確に
行う事が困難であった。また、ＬＣＤパネルの端子電極
部とＬＣＤ駆動回路は通常ガラス基板とプリント基板と
の接続で、この部分に使用する導電接着剤の接着力は非
常に弱く僅かのストレスがこの接続部に加わっても接続
信頼性を低下させるような結果になっていた。The conventional LCD drive circuit printed circuit board 32 is connected in the vicinity of the connection portion of the common circuit flexible printed circuit board 31 on the other side to be connected.
It was not possible to connect the LCD drive circuit printed circuit board 32 in parallel with the upper portion of the drive IC 35. For this reason, the flexible printed circuit board is bent and connected. However, not only bending stress is applied to this connection portion, but also in connection workability, it is difficult to perform accurate alignment due to the repulsive force against bending. In addition, the terminal electrode part of the LCD panel and the LCD drive circuit are usually connected to the glass substrate and the printed circuit board, and the adhesive force of the conductive adhesive used in this part is very weak, and even if a slight stress is applied to this connection part. The result was that the connection reliability was reduced.
【０００４】[0004]
【課題を解決するための手段】本発明は、周辺に複数個
の端子電極と表示部を有するＬＣＤパネル基板と、前記
端子電極に接続された複数の駆動回路基板と、この駆動
回路基板の入出力端子電極を接続するための共通回路基
板とを有するＬＣＤ駆動回路基板において、前記駆動回
路基板の前記入出力端子電極と前記共通回路基板の接続
電極との間に端子板片を介在させ、前記入出力端子電極
と前記接続電極とを電気的に接続したことを特徴とす
る。SUMMARY OF THE INVENTION According to the present invention, an LCD panel substrate having a plurality of terminal electrodes and a display portion on the periphery thereof, a plurality of drive circuit boards connected to the terminal electrodes, and a mounting of the drive circuit board. In an LCD drive circuit board having a common circuit board for connecting output terminal electrodes, a terminal plate piece is interposed between the input / output terminal electrode of the drive circuit board and the connection electrode of the common circuit board, The writing output terminal electrode and the connection electrode are electrically connected.
【０００５】[0005]
【実施例】次に本発明について図面を参照して説明す
る。図１（ａ），（ｂ）は本発明の第１の実施例の駆動
回路基板の斜視図とＡＡ′断面図である。共通回路プリ
ント基板２へあらかじめ接続用端子板片３を半田付け
し、さらに接続用端子板片３の上面へ駆動回路フレキシ
ブルプリント基板１を合わせ接続を行なう。The present invention will be described below with reference to the drawings. 1A and 1B are a perspective view and a sectional view taken along the line AA 'of a drive circuit board according to a first embodiment of the present invention. The connection terminal board piece 3 is soldered to the common circuit printed board 2 in advance, and the drive circuit flexible printed board 1 is connected to the upper surface of the connection terminal board piece 3 for connection.
【０００６】接続用端子板片３は通常の両面プリント板
を使用し、上下の端子電極をスルーホールで接続したも
のである。共通回路プリント基板２にあらかじめ端子電
極のピッチを合せて半田付しておく。次にＬＣＤパネル
に異方性導電接着剤で接続された駆動回路フレキシブル
プリント基板１の入出力端子電極を接続用端子板片３の
電極ピッチに会わせ半田付けして接続する。あらかじめ
電極には予備半田付けしておけば熱圧着だけで容易に接
続することができる。The connecting terminal plate piece 3 is a normal double-sided printed board, and the upper and lower terminal electrodes are connected by through holes. The common circuit printed board 2 is preliminarily adjusted to the pitch of the terminal electrodes and soldered. Next, the input / output terminal electrodes of the drive circuit flexible printed circuit board 1 connected to the LCD panel with the anisotropic conductive adhesive are soldered to meet the electrode pitch of the connecting terminal plate pieces 3. If the electrodes are pre-soldered in advance, they can be easily connected only by thermocompression bonding.
【０００７】このような構造のＬＣＤ駆動回路基板は、
駆動回路プリント基板２あるいはフレキシブルプリント
基板１の相対する回路面に駆動ＩＣ５，チップコンデン
サ４などが設置されている場合でも、各基板は平行した
位置で構成できる。したがって、ＬＣＤパネルと駆動回
路基板との接続部に機械的歪や熱的歪が加わりにくく高
信頼のＬＣＤが得られる。また、半田付する場合でも上
部から加熱ヘッドを押圧するだけで良く、自動化生産に
も容易に対応できるようになる。The LCD driving circuit board having the above structure is
Even when the drive IC 5, the chip capacitor 4 and the like are installed on the opposing circuit surfaces of the drive circuit printed board 2 or the flexible printed board 1, the boards can be configured in parallel positions. Therefore, it is possible to obtain a highly reliable LCD in which mechanical distortion or thermal distortion is less likely to be applied to the connection portion between the LCD panel and the drive circuit board. Further, even in the case of soldering, it suffices to press the heating head from above, which makes it possible to easily cope with automated production.
【０００８】図２（ａ），（ｂ）は本発明の第２の実施
例を示す斜視図とＡＡ′断面図である。接続用端子板片
２３以外は第１の実施例に示した構造と同等である。図
２において接続用端子板片２３は絶縁板にフレキシブル
回路基板を巻くような形で構成されている。このような
構成にすれば、とくにスルーホールなどの複雑な工程を
必要とせず、一層のプリント基板のパターン化だけで端
子板を作ることができる。第１の実施例と同様な作用効
果が得られる他、低価格で作業性も容易となり、とくに
ポリイミドなどのフレキシブル回路で駆動回路を構成し
ている場合は熱的に整合性が良くなり、より高信頼が可
能となる。2 (a) and 2 (b) are a perspective view and an AA 'sectional view showing a second embodiment of the present invention. The structure is the same as that of the first embodiment except for the connecting terminal plate piece 23. In FIG. 2, the connecting terminal plate piece 23 is formed in such a manner that a flexible circuit board is wound around an insulating plate. With such a structure, a terminal board can be manufactured by only patterning a single printed circuit board without requiring a complicated process such as a through hole. In addition to the same operational effects as in the first embodiment, the cost is low and the workability is easy. Especially, when the drive circuit is composed of a flexible circuit such as polyimide, thermal compatibility is improved, High reliability is possible.
【０００９】[0009]
【発明の効果】以上説明したように本発明は、部品付き
プリント基板にフレキシブルプリント基板を無理なく接
続することを可能としたので作業性の向上および部品実
装設計の自由度向上などの効果を有する。また、駆動回
路基板と共通回路基板とは常に平行な形状で固定される
ので高信頼のＬＣＤが得られる。As described above, the present invention enables the flexible printed circuit board to be connected to the printed circuit board with components without difficulty, so that the workability is improved and the degree of freedom in component mounting design is improved. . Further, since the drive circuit board and the common circuit board are always fixed in a parallel shape, a highly reliable LCD can be obtained.
【図１】本発明の第１の実施例を示す図で、（ａ）図は
斜視図、（ｂ）図は（ａ）図のＡ−Ａ′断面図である。1A and 1B are views showing a first embodiment of the present invention, wherein FIG. 1A is a perspective view and FIG. 1B is a sectional view taken along the line AA ′ in FIG. 1A.
【図２】本発明の第２の実施例を示す図で、（ａ）図は
斜視図、（ｂ）図は（ａ）図のＡ−Ａ′断面図である。2A and 2B are views showing a second embodiment of the present invention, in which FIG. 2A is a perspective view and FIG. 2B is a sectional view taken along line AA ′ in FIG. 2A.
【図３】従来技術の駆動回路基板を示す図で、（ａ）図
は斜視図、（ｂ）図は（ａ）図のＡ−Ａ′断面図であ
る。3A and 3B are views showing a conventional drive circuit board, in which FIG. 3A is a perspective view and FIG. 3B is a sectional view taken along line AA ′ in FIG. 3A.
１，３１ フレキシブルプリント基板 ２，３２ プリント基板 ３，２３ 接続用端子板片 ４，３４ チップコンデンサ ５，３５ 駆動ＩＣ 1,31 Flexible printed circuit board 2,32 Printed circuit board 3,23 Connection terminal plate piece 4,34 Chip capacitor 5,35 Drive IC
Claims (1)
るＬＣＤパネル基板と、前記端子電極に接続された複数
の駆動回路基板と、この駆動回路基板の入出力端子電極
を接続するための共通回路基板とを有するＬＣＤ駆動回
路基板において、前記駆動回路基板の前記入出力端子電
極と前記共通回路基板の接続電極との間に端子板片を介
在させ、前記入出力端子電極と前記接続電極とを電気的
に接続したことを特徴とするＬＣＤ駆動回路基板。1. An LCD panel substrate having a plurality of terminal electrodes and a display unit on the periphery, a plurality of drive circuit boards connected to the terminal electrodes, and an input / output terminal electrode of the drive circuit board. In an LCD drive circuit board having a common circuit board, a terminal plate piece is interposed between the input / output terminal electrode of the drive circuit board and the connection electrode of the common circuit board, and the input / output terminal electrode and the connection electrode. An LCD drive circuit board characterized in that and are electrically connected to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3250774A JPH0588195A (en) | 1991-09-30 | 1991-09-30 | Lcd driving circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3250774A JPH0588195A (en) | 1991-09-30 | 1991-09-30 | Lcd driving circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0588195A true JPH0588195A (en) | 1993-04-09 |
Family
ID=17212846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3250774A Pending JPH0588195A (en) | 1991-09-30 | 1991-09-30 | Lcd driving circuit board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0588195A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6870590B2 (en) * | 2000-08-10 | 2005-03-22 | Seiko Epson Corporation | Electrooptical unit with a flexible board and electronic apparatus |
-
1991
- 1991-09-30 JP JP3250774A patent/JPH0588195A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6870590B2 (en) * | 2000-08-10 | 2005-03-22 | Seiko Epson Corporation | Electrooptical unit with a flexible board and electronic apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2000002882A (en) | Liquid crystal display device and its manufacture | |
| WO2002021199A1 (en) | Liquid crystal display | |
| KR100266892B1 (en) | Electric-circute board for a display apparatus | |
| US5563619A (en) | Liquid crystal display with integrated electronics | |
| KR101002307B1 (en) | Liquid Crystal Display and Fabricating Method thereof | |
| JP4343328B2 (en) | Display device | |
| JPH0588195A (en) | Lcd driving circuit board | |
| JP2862900B2 (en) | LCD display | |
| JPH04313731A (en) | Liquid crystal display device | |
| WO1998041067A1 (en) | Electronic parts module and electronic equipment | |
| KR100476526B1 (en) | LCD Module Structure | |
| JPH05142558A (en) | Liquid crystal display device | |
| JP2894728B2 (en) | Liquid crystal display device and manufacturing method thereof | |
| JPH04264525A (en) | Liquid crystal display device | |
| TWI721836B (en) | Display device and mosaic display module | |
| JP2946288B2 (en) | Liquid crystal display | |
| KR100529490B1 (en) | LCD Display Module | |
| JP4082832B2 (en) | Liquid crystal display | |
| JPS61167977A (en) | Liquid crystal display unit | |
| JP3003928B2 (en) | Liquid crystal display | |
| JP2511526Y2 (en) | Liquid crystal display | |
| JP2002139738A (en) | Liquid crystal display element | |
| JP3261002B2 (en) | Liquid crystal display | |
| JP3091725B2 (en) | Liquid crystal display | |
| JPS6261089A (en) | Planar display unit |