JPH0882803A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JPH0882803A JPH0882803A JP21865294A JP21865294A JPH0882803A JP H0882803 A JPH0882803 A JP H0882803A JP 21865294 A JP21865294 A JP 21865294A JP 21865294 A JP21865294 A JP 21865294A JP H0882803 A JPH0882803 A JP H0882803A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- signal line
- conductive film
- anisotropic conductive
- 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
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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0266—Marks, test patterns or identification 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
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/321—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by conductive adhesives
-
- 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)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、例えば液晶カラーテレ
ビ等の薄型表示装置に用いられる液晶表示装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device used for a thin display device such as a liquid crystal color television.
【0002】[0002]
【従来の技術】図3は従来の液晶表示装置の全体構成を
示す斜視図である。2. Description of the Related Art FIG. 3 is a perspective view showing the overall structure of a conventional liquid crystal display device.
【0003】図4は液晶表示装置のTCP(テープ・キ
ャリア・パッケージ)2を接続した状態を示す平面図で
ある。図5は液晶表示装置の信号線端子両端部とTCP
2の両端を拡大した平面図である。FIG. 4 is a plan view showing a state in which a TCP (tape carrier package) 2 of a liquid crystal display device is connected. FIG. 5 shows both ends of the signal line terminal of the liquid crystal display device and the TCP.
It is the top view which expanded both ends of 2.
【0004】従来、液晶表示装置は、液晶表示素子1の
信号線3に接続された信号線端子5と駆動IC8側の駆
動側端子7とが異方性導電膜10によって接続されてい
る。このような液晶表示装置において前記信号線端子5
と前記駆動側端子7を位置決めするため、前記信号線端
子5両側に配置した一対の位置決めキーマーク9は、前
記駆動側端子7を有するTCP2内においても前記一対
の位置決めキーマーク9と相対するキーマーク6が配置
されている。なお、図1において、11はドライバ基板
である。Conventionally, in the liquid crystal display device, the signal line terminal 5 connected to the signal line 3 of the liquid crystal display element 1 and the drive side terminal 7 on the drive IC 8 side are connected by the anisotropic conductive film 10. In such a liquid crystal display device, the signal line terminal 5
In order to position the drive-side terminal 7 and the pair of positioning key marks 9 arranged on both sides of the signal line terminal 5, a key facing the pair of positioning key marks 9 is provided in the TCP 2 having the drive-side terminal 7. The mark 6 is arranged. In FIG. 1, 11 is a driver substrate.
【0005】TCP2を接続する際には、まず、液晶表
示素子1の信号線端子5上に異方性導電膜10を被着さ
せた後、図5に示すように対応する位置決めキーマーク
9により高精度に位置合わせして仮圧着する。そして、
図示していないがヒーターチップにより加圧・加熱する
という本圧着を行い、異方性導電膜10を溶融・軟化さ
せて対応する信号線端子5と駆動側端子7とを電気的か
つ機械的に接続する。When connecting the TCP 2, first, the anisotropic conductive film 10 is deposited on the signal line terminals 5 of the liquid crystal display element 1, and then the corresponding positioning key mark 9 is used as shown in FIG. Precise pressure bonding with high precision alignment. And
Although not shown, main pressure bonding is performed by pressing and heating with a heater chip to melt and soften the anisotropic conductive film 10 to electrically and mechanically connect the corresponding signal line terminal 5 and drive side terminal 7 to each other. Connecting.
【0006】[0006]
【発明が解決しようとする課題】しかしながら、上記従
来の構成では、信号線端子5と駆動側端子7、異方性導
電膜10と信号線端子5をそれぞれ単独にしか位置決め
できないため、それぞれ専用の位置決めのパターンを設
けなければならないという問題点を有する。However, in the above-mentioned conventional structure, the signal line terminal 5 and the driving side terminal 7, and the anisotropic conductive film 10 and the signal line terminal 5 can be positioned only individually, and therefore, they are dedicated to each. There is a problem that a positioning pattern must be provided.
【0007】さらに、異方性導電膜10の位置決めは、
図示していないが液晶表示素子1両端に設けたパターン
による位置決めや液晶表示素子1の外形を基準にした方
法がよく用いられる。Further, the positioning of the anisotropic conductive film 10 is
Although not shown, positioning by patterns provided on both ends of the liquid crystal display element 1 or a method based on the outer shape of the liquid crystal display element 1 is often used.
【0008】また、駆動IC8が静電気などにより動作
不良となった場合、駆動側端子7を有するTCP2を部
分的に取り外したあと再接続するリペア作業がある。こ
の作業は、一般的に手作業によるものがほとんどであ
り、異方性導電膜10の位置決めは、TCP2側に仮止
めする場合もあるが、液晶表示素子1に異方性導電膜1
0を仮止めする場合、部分的な位置決めキーマークがな
かったため、作業性が悪かった。さらに、位置ずれ量を
定量的に確認するのが困難であった。If the drive IC 8 malfunctions due to static electricity or the like, there is a repair work in which the TCP 2 having the drive side terminal 7 is partially removed and then reconnected. Most of this work is generally done manually, and the anisotropic conductive film 10 may be temporarily fixed to the TCP 2 side.
In the case of temporarily fixing 0, the workability was poor because there was no partial positioning key mark. Furthermore, it has been difficult to quantitatively confirm the amount of displacement.
【0009】そこで本発明は、上述の課題を解決するた
め液晶表示素子の信号線端子両側に配置した一対の位置
決めキーマークで駆動側端子、異方性導電膜の両者を位
置決めできる液晶表示装置を提供することを目的とす
る。In order to solve the above problems, the present invention provides a liquid crystal display device capable of positioning both the drive side terminal and the anisotropic conductive film with a pair of positioning key marks arranged on both sides of the signal line terminal of the liquid crystal display element. The purpose is to provide.
【0010】[0010]
【課題を解決するための手段】この目的を達成するた
め、この本発明においては、液晶表示素子の信号線に接
続された信号線端子と駆動回路側の駆動側端子とが異方
性導電膜によって接続された液晶表示装置において、前
記信号線端子両側に前記駆動側端子と前記異方性導電膜
を位置決めできる形状を有する一対の位置決めキーマー
クを配置したものである。また、この位置決めキーマー
クは、前記駆動側端子を有するTCPから外側に延長し
た形状とした。さらに、金属膜からなり、不透明な電極
で形成している。To achieve this object, in the present invention, a signal line terminal connected to a signal line of a liquid crystal display element and a drive side terminal on a drive circuit side are anisotropic conductive films. In the liquid crystal display device connected by, a pair of positioning key marks having a shape capable of positioning the driving side terminal and the anisotropic conductive film are arranged on both sides of the signal line terminal. Further, the positioning key mark has a shape extending outward from the TCP having the drive side terminal. Further, it is made of a metal film and is formed of an opaque electrode.
【0011】[0011]
【作用】この構成によって、駆動側端子と異方性導電膜
の両者を一対の位置決めキーマークで位置決めすること
ができる。そして、位置決め後、目視による位置確認が
定量的に容易にできる。さらに、駆動側端子を有するT
CPを部分的に取り外したあと再接続する場合、異方性
導電膜の幅と同じ位置にパターンを延長した位置決めキ
ーマークであるため、手作業による異方性導電膜の貼り
換えにおいても容易に位置決めすることができる。With this structure, both the drive side terminal and the anisotropic conductive film can be positioned by the pair of positioning key marks. After the positioning, visual confirmation of the position can be facilitated quantitatively. Furthermore, a T having a driving side terminal
When CP is partially removed and then reconnected, it is a positioning key mark in which the pattern is extended to the same position as the width of the anisotropic conductive film, so it is easy to manually replace the anisotropic conductive film. Can be positioned.
【0012】[0012]
【実施例】以下本発明の一実施例について、図1、図2
の図面を参照しながら説明する。なお、図1、図2にお
いて、図3〜図5に示す部分と同一部分には同一番号を
付している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
Will be described with reference to the drawings. In FIGS. 1 and 2, the same parts as those shown in FIGS. 3 to 5 are designated by the same reference numerals.
【0013】図1は、本発明の一実施例における液晶表
示素子1の信号線3に接続された信号線端子5と駆動側
端子7を位置決めした平面図である。FIG. 1 is a plan view in which a signal line terminal 5 connected to a signal line 3 and a driving side terminal 7 of a liquid crystal display element 1 according to an embodiment of the present invention are positioned.
【0014】この前記信号線端子5両側に配置した一対
の位置決めキーマーク4は、異方性導電膜10と同じ幅
で形成してある。実際の使用幅は、2mm、2.5mmが一
般的である。さらに、位置決めキーマーク4は、TCP
2から外側に両端の2箇所だけ延長したほぼC字形状を
パターン幅0.2mmで形成することにより構成してお
り、異方性導電膜10を位置決め時及び位置決め後、幅
方向の位置決め及び確認ができる形状を有している。こ
のパターン幅により被着後のズレ量を定量的に把握する
ことができる。この時、公差±0.2mmである。そし
て、液晶表示素子1の信号線3に接続された信号線端子
5とTCP2の駆動側端子7の位置決めを前記位置決め
キーマーク4の内側部分を用いて行う。さらに、TCP
2を部分的に取り外したあと再接続する場合、部分的に
異方性導電膜10を手作業で貼り換えることができると
共に、異方性導電膜10被着後の幅方向のズレ量を目視
により簡単に定量的に把握することができる。The pair of positioning key marks 4 arranged on both sides of the signal line terminal 5 are formed to have the same width as the anisotropic conductive film 10. The actual width of use is generally 2 mm and 2.5 mm. Further, the positioning key mark 4 is TCP
It is configured by forming a substantially C-shaped pattern extending from 2 to the outside at two positions at both ends with a pattern width of 0.2 mm. When the anisotropic conductive film 10 is positioned and after positioning, it is positioned and confirmed in the width direction. It has a shape that allows The amount of deviation after deposition can be quantitatively grasped from this pattern width. At this time, the tolerance is ± 0.2 mm. Then, the signal line terminal 5 connected to the signal line 3 of the liquid crystal display element 1 and the driving side terminal 7 of the TCP 2 are positioned by using the inner portion of the positioning key mark 4. In addition, TCP
When 2 is partially removed and then reconnected, the anisotropic conductive film 10 can be partially reattached by hand, and the amount of deviation in the width direction after the anisotropic conductive film 10 is attached can be visually checked. Can be easily and quantitatively grasped.
【0015】この前記複合位置決めキーマーク4は、C
r,AL,Tiなどの金属膜からなり、不透明な電極で
形成していることから従来から主として使用されている
ITO電極で構成された位置決めキーマーク4に比べる
とカメラなどによるモニター状態を改善することが可能
となる。The composite positioning key mark 4 is C
Since it is made of a metal film of r, AL, Ti or the like and is formed of an opaque electrode, it improves the monitor state by a camera or the like as compared with the positioning key mark 4 mainly composed of the ITO electrode conventionally used. It becomes possible.
【0016】この不透明な電極の場合、CCDカメラを
用いる場合の照明として反射光だけでなく透過光を用い
ることができるため、高いコントラストを得ることがで
き良好な画像を得ることができる。In the case of this opaque electrode, not only reflected light but also transmitted light can be used as illumination when a CCD camera is used, so that a high contrast can be obtained and a good image can be obtained.
【0017】[0017]
【発明の効果】以上のように本発明は、信号線端子と駆
動側端子を位置決めするため、前記信号線端子両側に配
置した一対の複合位置決めキーマークは、前記駆動側端
子と前記異方性導電膜を位置決めできる形状を有するこ
とから、接続後の精度確認やTCPを部分的に取り外し
たあとの再接続において作業性を大幅に改善できると共
に、位置ずれ状態を定量的に判断することができる。As described above, according to the present invention, in order to position the signal line terminal and the driving side terminal, the pair of composite positioning key marks arranged on both sides of the signal line terminal are provided with the driving side terminal and the anisotropy. Since the conductive film has a shape capable of being positioned, workability can be significantly improved in accuracy confirmation after connection and reconnection after TCP is partially removed, and misalignment can be quantitatively determined. .
【図1】本発明の一実施例による液晶表示装置の要部の
平面図FIG. 1 is a plan view of a main part of a liquid crystal display device according to an embodiment of the present invention.
【図2】本発明の一実施例の液晶表示装置の要部の部分
拡大図FIG. 2 is a partially enlarged view of a main part of a liquid crystal display device according to an embodiment of the present invention.
【図3】従来例の液晶表示装置の全体斜視図FIG. 3 is an overall perspective view of a conventional liquid crystal display device.
【図4】従来例の液晶表示装置の接続電極部の平面図FIG. 4 is a plan view of a connection electrode portion of a conventional liquid crystal display device.
【図5】従来例の液晶表示装置の接続電極部の部分拡大
図FIG. 5 is a partially enlarged view of a connection electrode portion of a conventional liquid crystal display device.
1 液晶表示素子 2 TCP 3 信号線 4 位置決めキーマーク 5 信号線端子 6 キーマーク 7 駆動側端子 8 駆動IC 10 異方性導電膜 1 liquid crystal display element 2 TCP 3 signal line 4 positioning key mark 5 signal line terminal 6 key mark 7 drive side terminal 8 drive IC 10 anisotropic conductive film
Claims (3)
線端子と駆動回路側の駆動側端子とが異方性導電膜によ
って接続され、かつ前記信号線端子と前記駆動側端子を
位置決めするため、前記信号線端子両側に前記駆動側端
子と前記異方性導電膜を位置決め可能な形状の一対の位
置決めキーマークを配置したことを特徴とする液晶表示
装置。1. A signal line terminal connected to a signal line of a liquid crystal display element and a drive side terminal on a drive circuit side are connected by an anisotropic conductive film, and the signal line terminal and the drive side terminal are positioned. Therefore, a pair of positioning key marks having a shape capable of positioning the driving side terminal and the anisotropic conductive film are arranged on both sides of the signal line terminal.
を有するテープ・キャリア・パッケージ部分から外側に
延長した形状としたことを特徴とする請求項1記載の液
晶表示装置。2. The liquid crystal display device according to claim 1, wherein the positioning key mark has a shape extending outward from a tape carrier package portion having the drive side terminal.
iなどの金属膜からなり、不透明であることを特徴とす
る請求項1記載の液晶表示装置。3. The positioning key mark is made of Cr, AL, T.
The liquid crystal display device according to claim 1, which is made of a metal film such as i and is opaque.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21865294A JP3769037B2 (en) | 1994-09-13 | 1994-09-13 | Liquid crystal display |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21865294A JP3769037B2 (en) | 1994-09-13 | 1994-09-13 | Liquid crystal display |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0882803A true JPH0882803A (en) | 1996-03-26 |
JP3769037B2 JP3769037B2 (en) | 2006-04-19 |
Family
ID=16723310
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21865294A Expired - Fee Related JP3769037B2 (en) | 1994-09-13 | 1994-09-13 | Liquid crystal display |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3769037B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100381918C (en) * | 2003-09-30 | 2008-04-16 | 友达光电股份有限公司 | Method for confirming sticking position of anisotropic conducting resin |
-
1994
- 1994-09-13 JP JP21865294A patent/JP3769037B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100381918C (en) * | 2003-09-30 | 2008-04-16 | 友达光电股份有限公司 | Method for confirming sticking position of anisotropic conducting resin |
Also Published As
Publication number | Publication date |
---|---|
JP3769037B2 (en) | 2006-04-19 |
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