JPH02248926A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JPH02248926A JPH02248926A JP6961289A JP6961289A JPH02248926A JP H02248926 A JPH02248926 A JP H02248926A JP 6961289 A JP6961289 A JP 6961289A JP 6961289 A JP6961289 A JP 6961289A JP H02248926 A JPH02248926 A JP H02248926A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- terminal part
- display element
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 39
- 238000005452 bending Methods 0.000 abstract description 6
- 230000003247 decreasing effect Effects 0.000 abstract 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は映像機器や情報機器などに用いられる液晶表示
装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a liquid crystal display device used in video equipment, information equipment, and the like.
従来の技術
液晶テレビをはじめとする映像機器やワードプロセッサ
、バーツナ〃コンピュータに代表される情報機器などの
表示装置に用いられる液晶表示素子においては、表示画
素が高密度に集積されており、これらの画素が多数の走
査電極と信号を極からなるマトリックス電極によって駆
動されている。Conventional technology In liquid crystal display elements used in display devices such as video equipment such as liquid crystal televisions, word processors, and information equipment such as Bahtuna computers, display pixels are highly integrated. is driven by a matrix electrode consisting of a large number of scanning electrodes and signal poles.
これう多数のマトリックスｔＷに液晶表示素子の外部か
ら駆動信号を与えるためには液晶表示素子の周辺部に設
けた給電端子と駆動用素子を搭載した基板とを導電ゴム
コネクタあるいはフィルムコネクタ等で接続する方法が
一般的であった。In order to supply drive signals to this large number of matrices tW from outside the liquid crystal display element, the power supply terminal provided around the liquid crystal display element and the board on which the driving element is mounted are connected using conductive rubber connectors, film connectors, etc. The common method was to
ところが近年、液晶表示素子の大型化や高コントラスト
化、あるいはカラー化に伴ってバック照明を必要とする
透過タイプの液晶表示素子が多くなり、駆動回路も一枚
の回路基板に実装することが困ａ！になってきた。その
ため駆動回路は走査電極側と信号電極側とに分離されて
実装するよう罠なってきた。However, in recent years, as liquid crystal display elements have become larger, have higher contrast, and have become more color-transmissive, the number of transmissive type liquid crystal display elements that require backlighting has increased, making it difficult to mount the drive circuit on a single circuit board. a! It has become. Therefore, it has become common practice to implement the drive circuit separately on the scanning electrode side and the signal electrode side.
第２図〜第４図はその例を示し、駆動用素子をフィルム
キャリアに搭載（Ｔ五Ｂ・・・テープ オートマツティ
ド ボンディングくτ亀ｐ・ムｕｔｏｍａｔｅａＢｏｎ
４ｉｎｇ＞） したものを液晶表示素子に接続する従来
例を示している。ｗＸ２図において、液晶表示素子１の
給電端子部２には、駆動用素子３を搭載したフィルムキ
ャリア４の出力端子部４ａを接続している。又、フィル
ムキャリア４の入力端子部４ｂはバス回路基板６に接続
されている。Figures 2 to 4 show examples of this, in which the drive element is mounted on a film carrier (T5B... tape automatic bonding).
4ing>) is connected to a liquid crystal display element. In Figure wX2, the power supply terminal section 2 of the liquid crystal display element 1 is connected to the output terminal section 4a of the film carrier 4 on which the driving element 3 is mounted. Further, the input terminal section 4b of the film carrier 4 is connected to the bus circuit board 6.
次に、第３図に示した従来例は、第２図に示した従来例
と似ているが、出力端子部４ａを折り曲げ、液晶表示素
子１の下部に設置されたバック照明の筐体６の側面にバ
ス回路基板６を配設している。Next, the conventional example shown in FIG. 3 is similar to the conventional example shown in FIG. A bus circuit board 6 is arranged on the side surface of the bus circuit board 6.
第４図に示した従来例は、液晶表示素子１の給電端子部
２を広くとり、給電端子とともにバス回路基板６が設置
できるようにしている。そして前記給電端子部２上にフ
ィルムキャリア４に搭載した駆動用素子３を実装してい
く。尚、バス回路基板５はＱ、６ｍｆ１以下のリジット
基板、あるいはフレキシブル基板（ＦＰＣ）が適してい
る。In the conventional example shown in FIG. 4, the power supply terminal portion 2 of the liquid crystal display element 1 is made wide so that the bus circuit board 6 can be installed together with the power supply terminal. Then, the drive element 3 mounted on the film carrier 4 is mounted on the power supply terminal portion 2. Note that a rigid board of Q, 6mf1 or less, or a flexible board (FPC) is suitable for the bus circuit board 5.
発明が解決しようとする課題
ところが、以上のような従来の構成であると次のような
課題があった。第２図および第４図の従来例では、液晶
表示素子１の給電端子部２０周辺部にバス回路基板６が
配置されるため、表示部の周辺のスペースが広く必要と
なシ、パーソナルコンピューター、ワードプロセッサー
などの機器の小型化に支障があった。また、第３図の従
来例では機器のコンパクト化が可能であるが、フィルム
キャリア４の出力端子部４＆を折シ曲げるため、折り曲
げ部のリード強度が弱くなり、接続信頼性に欠ける。Problems to be Solved by the Invention However, the conventional configuration as described above has the following problems. In the conventional examples shown in FIGS. 2 and 4, since the bus circuit board 6 is arranged around the power supply terminal section 20 of the liquid crystal display element 1, a large space around the display section is required, and the personal computer, This caused problems in the miniaturization of devices such as word processors. Further, although the conventional example shown in FIG. 3 allows the device to be made more compact, since the output terminal portion 4& of the film carrier 4 is bent, the lead strength at the bent portion is weakened, resulting in a lack of connection reliability.
本発明は上記問題点に鑑み、液晶表示素子の表示部周辺
のスペースが小さく、接続信頼性の高い液晶表示装置を
提供することを目的とする。SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a liquid crystal display device in which the space around the display portion of a liquid crystal display element is small and the connection reliability is high.
課題を解決するための手段
本発明は上記目的を達成するために、給電端子部を備え
た液晶表示素子と駆動用素子を搭載すると共に出力端子
部を前記給電端子部に接続しかつ入力端子部を備えたフ
・イルムキャリアと、前記液晶表示素子の裏面に設けら
れたバス回路基板とを有し、前記フィルムキャリアを給
電端子部上に配置し前記入力端子部を折り曲げて前記バ
ス回路基板に接続したものである。Means for Solving the Problems In order to achieve the above object, the present invention includes a liquid crystal display element having a power supply terminal section and a driving element, an output terminal section connected to the power supply terminal section, and an input terminal section. and a bus circuit board provided on the back surface of the liquid crystal display element, the film carrier is placed on the power supply terminal part, the input terminal part is bent, and the bus circuit board is mounted on the bus circuit board. It is connected.
作用
本発明によれば、液晶表示素子の表示部周辺のスペース
を比較的小さくできるとともに、フィルムキャリアの折
シ曲げ部が線幅の広い入力端子部であるため、リード強
度が強くなり接続信頼性も向上する。According to the present invention, the space around the display part of the liquid crystal display element can be made relatively small, and since the folded part of the film carrier is the input terminal part with a wide line width, the lead strength is strong and the connection reliability is improved. It also improves.
実施例
以下、本発明の一実施例を図面を用いて説明する。第１
図ａ、ｂは本発明の液晶表示装置における液晶表示素子
とその駆動用素子を搭載したフィルムキャリアの＊Ｆｉ
ｔを示す図である。EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings. 1st
Figures a and b show *Fi of the film carrier on which the liquid crystal display element and its driving element are mounted in the liquid crystal display device of the present invention.
It is a figure showing t.
第１図ａ、ｂにおいて７は液晶表示素子であり、給電端
子を含む接続部である給電端子部８を備えている。フィ
ルムキャリア１０は、はぼ中央部に駆動用素子９を搭載
している。フィルムキャリア１０■出力端子部１０＆を
前記給電端子部８に接現し、フィルムキャリア１０を給
電端子部８上に配置する。但し、フィルムキャリア１ｏ
の入力端子部１ｏｂは給電端子部８上に配装置してはお
らず、液晶表示素子７０周辺部に突出している。入力端
子部１ｏｂｑバス回路基板１１に接続していて、この入
力端子部１０ｂをコの字形に折り曲げて、バス回路基板
１１を液晶表示素子７の裏面にバス回路基板１１を設置
すると、第１図すのようになる。In FIGS. 1a and 1b, 7 is a liquid crystal display element, which is provided with a power supply terminal section 8 which is a connection section including a power supply terminal. The film carrier 10 has a driving element 9 mounted in the center of the film carrier. Film carrier 10 ■ The output terminal section 10 & is brought into contact with the power supply terminal section 8 , and the film carrier 10 is placed on the power supply terminal section 8 . However, film carrier 1o
The input terminal section 1ob is not disposed on the power supply terminal section 8, but protrudes to the periphery of the liquid crystal display element 70. The input terminal section 1obq is connected to the bus circuit board 11, and when the input terminal section 10b is bent into a U-shape and the bus circuit board 11 is installed on the back side of the liquid crystal display element 7, as shown in FIG. It becomes like that.
以上のような本実施例の液晶表示装置の構成によれば、
表示部の周辺部のスペースが広くなり機器の小型化に支
障があったという問題に対しては、バス回路基板を液晶
表示素子７０下部に配置することによシ省スペース化が
実現でき、機器のコンパクト化も出来るようになる。又
、フィルムキャリア１０の出力端子部ＩＱＩＬを折り曲
げることでリード強度が低下する問題については、出力
端子部１０１Ｌ側の折り曲げから入力端子部１ｏｂ側０
折り曲げに変えると、入力端子部１ｏｂのリード線幅が
広いため折り曲げに対して強く、リード線の強度と高く
することができる。更に、液晶表示素子７にフィルムキ
ャリア１０およびバス回路基板１１が保持された状態な
のでリード部への機掴的応力が小さく済み、接続信頼性
を大幅に向上することかできる。又、薄型のバス回路基
板１１を使用するので、駆動用素子を実装した状態にお
いても液晶表示素子７の厚みはほとんど変わらない薄型
実装が可能となる。According to the configuration of the liquid crystal display device of this embodiment as described above,
To solve the problem that the space around the display section was large, which hindered the miniaturization of devices, it was possible to save space by arranging the bus circuit board below the liquid crystal display element 70. It will also be possible to make it more compact. In addition, regarding the problem that the lead strength is reduced by bending the output terminal part IQIL of the film carrier 10, from the bending of the output terminal part 101L side to the input terminal part 1ob side 0
If the input terminal portion 1ob is changed to bending, the lead wire width of the input terminal portion 1ob is wide, so it is strong against bending, and the strength of the lead wire can be increased. Furthermore, since the film carrier 10 and the bus circuit board 11 are held by the liquid crystal display element 7, mechanical stress on the lead portion can be reduced, and connection reliability can be greatly improved. Furthermore, since the thin bus circuit board 11 is used, it is possible to implement a thin mounting in which the thickness of the liquid crystal display element 7 remains almost the same even when driving elements are mounted.
発明の効果
本発明によれば、入力端子部を折り曲げて、バス回路基
板を液晶表示素子の裏面に配設することで、液晶表示素
子の表示部周辺のスペースが小さくなり、また入力端子
部のリード線幅が広いため接続信頼性の面でも優れた液
晶表示装置を提供することができる。Effects of the Invention According to the present invention, by bending the input terminal section and arranging the bus circuit board on the back side of the liquid crystal display element, the space around the display section of the liquid crystal display element can be reduced, and the space around the input terminal section can be reduced. Since the lead wire width is wide, it is possible to provide a liquid crystal display device with excellent connection reliability.
第１図ａ、ｂは本発明の一実施例による液晶表示装置の
構成を示す断面図、第２図〜第４図はそれぞれ従来の液
晶表示装置の構成を示す断面図である。
７・・・・・・液晶表示素子、８・・・・・・給電端子
部、９・・・・・・駆動用素子、１ｏ・・・・・・フィ
ルムキャリア、ＩＱ＆・・・・・出力端子部、１ｏｂ・
・・・・・入力端子部、１１・・・・−・くス回路基板
。
７・−・液晶表示素子
δ−・＃吃扁子都
９−・−駆＃用素子
１０−−フィルムｔＣ−マリア
ｌムー・−出大堝菩邦
ｔｏｂ−“八１ｉ４芒都FIGS. 1a and 1b are cross-sectional views showing the structure of a liquid crystal display device according to an embodiment of the present invention, and FIGS. 2 to 4 are cross-sectional views showing the structure of conventional liquid crystal display devices, respectively. 7... Liquid crystal display element, 8... Power supply terminal section, 9... Drive element, 1o... Film carrier, IQ &... Output Terminal part, 1ob・
... Input terminal section, 11 ... - - Screw circuit board. 7.--Liquid crystal display element δ--#吃平子都9---设备#用子10--filmtC-Marialmu--deodabobohototob-"81i4芒都
Claims (1)
すると共に出力端子部を前記給電端子部に接続し、かつ
入力端子部を備えたフィルムキャリアと、前記液晶表示
素子の裏面に設けられたバス回路基板とを有し、前記フ
ィルムキャリアを給電端子部上に配置し前記入力端子部
を折り曲げて前記バス回路基板に接続したことを特徴と
する液晶表示装置。A liquid crystal display element having a power supply terminal part, a film carrier having a drive element mounted thereon, having an output terminal part connected to the power supply terminal part, and having an input terminal part, and a film carrier provided on the back surface of the liquid crystal display element. 1. A liquid crystal display device comprising: a bus circuit board, wherein the film carrier is disposed on a power supply terminal section, and the input terminal section is bent and connected to the bus circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6961289A JPH07122714B2 (en) | 1989-03-22 | 1989-03-22 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6961289A JPH07122714B2 (en) | 1989-03-22 | 1989-03-22 | Liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02248926A true JPH02248926A (en) | 1990-10-04 |
| JPH07122714B2 JPH07122714B2 (en) | 1995-12-25 |
Family
ID=13407852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6961289A Expired - Fee Related JPH07122714B2 (en) | 1989-03-22 | 1989-03-22 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07122714B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5341233A (en) * | 1991-05-15 | 1994-08-23 | Idemitsu Kosan Co., Ltd. | Liquid crystal module with tab assemblies connected through a flexible circuit board |
| US5349226A (en) * | 1990-12-28 | 1994-09-20 | Sharp Kabushiki Kaisha | Active matrix substrate having a contact pad for detecting bus line signals |
| EP0609074A3 (en) * | 1993-01-27 | 1994-11-23 | Sharp Kk | Assembly structure of a flat type device. |
| US5563619A (en) * | 1993-03-22 | 1996-10-08 | Ncr Corporation | Liquid crystal display with integrated electronics |
| US5739887A (en) * | 1994-10-21 | 1998-04-14 | Hitachi, Ltd. | Liquid crystal display device with reduced frame portion surrounding display area |
| US6774872B1 (en) | 1998-12-04 | 2004-08-10 | Fujitsu Limited | Flat display device |
-
1989
- 1989-03-22 JP JP6961289A patent/JPH07122714B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5349226A (en) * | 1990-12-28 | 1994-09-20 | Sharp Kabushiki Kaisha | Active matrix substrate having a contact pad for detecting bus line signals |
| US5341233A (en) * | 1991-05-15 | 1994-08-23 | Idemitsu Kosan Co., Ltd. | Liquid crystal module with tab assemblies connected through a flexible circuit board |
| EP0609074A3 (en) * | 1993-01-27 | 1994-11-23 | Sharp Kk | Assembly structure of a flat type device. |
| US5592199A (en) * | 1993-01-27 | 1997-01-07 | Sharp Kabushiki Kaisha | Assembly structure of a flat type device including a panel having electrode terminals disposed on a peripheral portion thereof and method for assembling the same |
| US5670994A (en) * | 1993-01-27 | 1997-09-23 | Sharp Kabushiki Kaisha | Assembly structure of a flat type device including a panel having electrode terminals disposed on a peripheral portion |
| US5563619A (en) * | 1993-03-22 | 1996-10-08 | Ncr Corporation | Liquid crystal display with integrated electronics |
| US5739887A (en) * | 1994-10-21 | 1998-04-14 | Hitachi, Ltd. | Liquid crystal display device with reduced frame portion surrounding display area |
| US6774872B1 (en) | 1998-12-04 | 2004-08-10 | Fujitsu Limited | Flat display device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07122714B2 (en) | 1995-12-25 |
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