【0001】[0001]
【産業上の利用分野】本発明は液晶表示板を構成するガ
ラス基板(上下電極板)の貼り合せ方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for bonding glass substrates (upper and lower electrode plates) constituting a liquid crystal display plate.
【0002】[0002]
【従来の技術】液晶表示板(LCD)は、透明導電性電
極をコートした2枚のガラス基板間に数μmのスペーサ
を用いてシール材の内側に液晶を封入したもので、その
2枚のガラス基板は位置合せマークによって狂い無く貼
り合せられている。2. Description of the Related Art A liquid crystal display (LCD) is one in which a liquid crystal is enclosed inside a sealing material by using a spacer of several μm between two glass substrates coated with transparent conductive electrodes. The glass substrates are stuck to each other with the alignment marks without any error.
【0003】ところで、従来における2枚のガラス基板
の貼り合せは、上下のガラス基板C,Dに所定のパター
ンの電極5,6及び位置合せマーク7,8を複数個パタ
ーニングし、その上下のガラス基板を1回のマーク合せ
で貼り合せ、貼り合せ完了後複数個に分割切断する複数
取り(多枚取り)の手法が採られている。(図5乃至図
7参照)By the way, in the conventional bonding of two glass substrates, a plurality of electrodes 5 and 6 and alignment marks 7 and 8 having a predetermined pattern are patterned on the upper and lower glass substrates C and D, and the upper and lower glass substrates C and D are patterned. A method of taking a plurality of wafers (a plurality of wafers) is used in which the substrates are attached by one-time mark alignment, and after the attachment is completed, the substrates are divided and cut into a plurality of pieces. (See FIGS. 5 to 7)
【0004】[0004]
【発明が解決しようとする課題】上記した従来の方法は
上側及び下側のガラス基板に同一又は異種のパターンが
パターニングされるが、その複数個のパターニングの一
部に不良が発見された場合でも上側又は下側のガラス基
板はそのまま貼り合せ、貼り合せ完了後に不良部分を含
んだ液晶表示板は廃棄される。しかしながら、上下のガ
ラス基板の内、一方にのみ不良箇所があった場合は良品
のパターニングが施された基板が無駄に捨てられてしま
うことになり、歩留まりが悪いといった問題点を有す
る。In the conventional method described above, the same or different patterns are patterned on the upper and lower glass substrates, and even if a defect is found in a part of the plurality of patterning patterns. The upper or lower glass substrate is bonded as it is, and after the bonding is completed, the liquid crystal display panel including the defective portion is discarded. However, if there is a defective portion on only one of the upper and lower glass substrates, the patterned substrate of a good product is wasted, resulting in a problem of low yield.
【0005】又、上下のガラス基板の貼り合せは、1枚
の基板に複数個のパターンが施されていても該ガラス基
板の対角線上に配置された2個の位置合せマークをマー
ク合せしているだけであるため、貼り合せ後に分割され
た個々の製品に位置合せ精度のバラ付きが生じやすく、
そうした位置合わせ精度のバラ付きは製品とした場合色
むら等を生じることになり高品質の製品を得にくいとい
った問題点を有する。In addition, the upper and lower glass substrates are bonded together by aligning two alignment marks arranged diagonally on the glass substrate even if a plurality of patterns are formed on the one substrate. Since it is only present, the individual products divided after bonding are likely to have variations in alignment accuracy,
Such a variation in alignment accuracy causes color unevenness and the like when it is made into a product, and there is a problem that it is difficult to obtain a high quality product.
【0006】本発明は上述したような従来の技術が有す
る問題点に鑑みてなされたものでその目的とするところ
は、正常にパターンが施された良品部分を無駄に捨てて
しまうことのないガラス基板の貼り合せ方法を提供する
ことにある。The present invention has been made in view of the problems of the above-mentioned conventional techniques. The object of the present invention is to prevent waste of a good pattern portion on which a normal pattern is formed. It is to provide a method of bonding substrates.
【0007】[0007]
【課題を解決するための手段】上記の目的を達成する為
に本発明が講じた技術的手段は、液晶表示板を構成する
電極を印刷した2枚のガラス基板の貼り合せ方法におい
て、一方の基板に複数取りの電極及び位置合せマークを
パターニングし、他方の基板は一方の基板にパターニン
グされた1個宛ての大きさとして電極及び位置合せマー
クをパターニングし、一方の基板に対して他方の基板を
その都度位置合わせして貼り合せることを特徴とする。The technical means taken by the present invention to achieve the above-mentioned object is one of the methods for bonding two glass substrates printed with electrodes constituting a liquid crystal display plate, one of which is Patterning a plurality of electrodes and alignment marks on the substrate, patterning the electrodes and alignment marks on the other substrate to the size of the one patterned on one substrate, and the other substrate for one substrate Is characterized in that it is aligned and bonded each time.
【0008】複数個のパターンが施された一方の基板及
び個々のパターン毎に分割された他方の基板に施される
位置合せマークは、対角線状に2種類のマーク(粗調整
用マークと微調整用マーク)を配置しても、或いは1種
類のマークを対角線上に配置してもよいものである。
又、一方の基板と他方の基板は上下何れの側に配置して
もよいものである。The alignment marks provided on one substrate provided with a plurality of patterns and the other substrate divided for each individual pattern are two types of diagonally aligned marks (a coarse adjustment mark and a fine adjustment mark). Mark) or one kind of mark may be arranged on a diagonal line.
Further, one substrate and the other substrate may be arranged on either side of the upper and lower sides.
【0009】[0009]
【作用】上記の手段によれば、一方のガラス基板に施さ
れた個々のパターンの上に、夫々に対応する小面積の他
方のガラス基板を、1枚づつ一方のガラス基板と位置合
わせして貼り合せる為、高精度の貼り合せが出来、しか
も一方のガラス基板に施された複数個のパターン内に不
良パターンがあれば、その部分には他方のガラス基板を
貼り合せず、正常パターン部分にのみ他方のガラス基板
を貼り合せ、他方のガラス基板の無駄を解決する。According to the above means, one glass substrate is aligned with the other glass substrate having a small area corresponding to each of the patterns formed on the one glass substrate. Because of the bonding, highly accurate bonding is possible, and if there is a defective pattern in the multiple patterns applied to one glass substrate, the other glass substrate is not bonded to that part and the normal pattern part is Only the other glass substrate is attached to solve the waste of the other glass substrate.
【0010】[0010]
【発明の効果】本発明に係る液晶表示板用ガラス基板の
貼り合せ方法は、液晶表示板を構成する電極を印刷した
2枚のガラス基板の貼り合せ方法において、一方の基板
に複数取りの電極及び位置合せマークをパターニング
し、他方の基板は一方の基板にパターニングされた1個
宛ての大きさとして電極及び位置合せマークをパターニ
ングし、一方の基板に対して他方の基板をその都度位置
合わせして貼り合せるようにしたので、高精度の貼り合
せが可能となり高品質の製品を製造することができる。
又、一方のガラス基板に施された複数個のパターン内に
不良パターンがあれば、その部分には他方のガラス基板
を貼り合せず、正常パターン部分にのみ他方のガラス基
板を貼り合せることができるため、他方のガラス基板の
無駄を解決し、歩留まりを向上出来る。The method for laminating a glass substrate for a liquid crystal display plate according to the present invention is a method for laminating two glass substrates printed with electrodes constituting a liquid crystal display plate. And the alignment mark is patterned, and the other substrate is patterned with the electrodes and alignment marks having a size corresponding to one patterned on one substrate, and the other substrate is aligned with one substrate each time. Since they are bonded together, it is possible to bond them with high precision, and it is possible to manufacture high quality products.
Further, if there is a defective pattern in a plurality of patterns applied to one glass substrate, the other glass substrate can be bonded only to the normal pattern portion without bonding the other glass substrate to that portion. Therefore, the waste of the other glass substrate can be solved and the yield can be improved.
【0011】[0011]
【実施例】以下、本発明の貼り合せ方法を一方の基板を
下側に配置し、他方の基板を上側に配置した形態につい
て図面に基づき説明すると、図中、Aは下側に配置した
一方のガラス基板、Bは上側に配置した他方のガラス基
板で、下側のガラス基板Aには該基板を十文字に4分割
する如く区分けして各部分に所定のパターンの電極1と
位置合せマーク2がパターニングされており、その4個
のブロックa,b,c,dの内右上のブロックcが不良
(NG)とする。上側のガラス基板Bは上側のガラス基
板Aの約1/4の大きさとし、それらに所定のパターン
の電極3と位置合せマーク4がパターニングされてい
る。Embodiments of the bonding method of the present invention will be described below with reference to the drawings, in which one substrate is arranged on the lower side and the other substrate is arranged on the upper side. Glass substrate B is the other glass substrate disposed on the upper side, and the lower glass substrate A is divided into four cross-shaped portions, and each portion has a predetermined pattern of electrode 1 and alignment mark 2. Of the four blocks a, b, c, and d are defective (NG). The upper glass substrate B is about 1/4 the size of the upper glass substrate A, and the electrodes 3 and the alignment marks 4 having a predetermined pattern are patterned on them.
【0012】上記の如く構成した下側のガラス基板Aの
上に上側のガラス基板Bを載せて貼り合せを行うが、そ
の貼り合せは下側のガラス基板Aにおける正常にパター
ニングされたブロックa,b,及びdの部分にのみ上側
のガラス基板Bを載せ、位置合せマーク2と4のマーク
合せを1枚ずつ行って貼り合せを行ない、不良のパター
ニングが施されているブロックcには上側のガラス基板
Bを載せること無くそのままとする。(図2及び図3参
照)The upper glass substrate B is placed on the lower glass substrate A having the above-mentioned structure and the bonding is performed. The bonding is performed by the normally patterned block a on the lower glass substrate A, The upper glass substrate B is placed only on the portions b and d, the alignment marks 2 and 4 are aligned one by one to perform the bonding, and the block c on which the defective patterning is applied is arranged on the upper side. The glass substrate B is left as it is without being placed. (See FIGS. 2 and 3)
【0013】以上の作業によって下側のガラス基板Aの
正常なパターニングのブロックa,b,dに、上側のガ
ラス基板Bを貼り合せした後、図4に示すように下側の
ガラス基板Aを各ブロックa,b,c,dに切断分割し
て上側のガラス基板Bが貼り合せられたもののみを製品
として使用し、不良パターンのブロックcは廃棄する。After the above operation, the upper glass substrate B is bonded to the normally patterned blocks a, b, and d of the lower glass substrate A, and then the lower glass substrate A is attached as shown in FIG. Only the block a, b, c, d cut and divided and the upper glass substrate B is bonded is used as a product, and the block c having the defective pattern is discarded.
【0014】上述した下側のガラス基板Aの表面にスペ
ーサを散在し、上側のガラス基板Bの周縁にシール材を
塗布することは従来と同様であるので、図面にはその記
載を省略する。又、上記実施例は一方の基板を下側と
し、他方の基板を上側とした形態であるが、本発明の精
神によれば前記実施例と逆の形態でもよいことは言うま
でもないことである。Since the spacers are scattered on the surface of the lower glass substrate A and the sealing material is applied to the peripheral edge of the upper glass substrate B as described above, the description thereof is omitted in the drawings. Further, in the above-described embodiment, one substrate is on the lower side and the other substrate is on the upper side, but it goes without saying that a configuration opposite to the above-described embodiment may be adopted according to the spirit of the present invention.
【図1】本発明における上下ガラス基板を示す正面図で
ある。FIG. 1 is a front view showing upper and lower glass substrates in the present invention.
【図2】下側のガラス基板における正常なパターンの部
分に上側のガラス基板を貼り合せる状態を示す正面図で
ある。FIG. 2 is a front view showing a state in which an upper glass substrate is attached to a normal pattern portion of a lower glass substrate.
【図3】上下のガラス基板の貼り合せ完了状態を示す正
面図である。FIG. 3 is a front view showing a completed bonding state of upper and lower glass substrates.
【図4】貼り合せ完了後に各ブロック毎に切断分割した
正面図である。FIG. 4 is a front view in which each block is cut and divided after the bonding is completed.
【図5】従来の貼り合せに用いられる上下のガラス基板
を示す正面図である。FIG. 5 is a front view showing upper and lower glass substrates used for conventional bonding.
【図6】従来法における上下のガラス基板の貼り合せ完
了状態を示す正面図である。FIG. 6 is a front view showing a completed bonding state of upper and lower glass substrates in a conventional method.
【図7】従来法における貼り合せ完了後に各ブロック毎
に切断分割した正面図である。FIG. 7 is a front view cut and divided for each block after completion of bonding in the conventional method.
A…一方(下側)のガラス基板 B…他方(上側)の
ガラス基板 1,3…所定パターンの電極 2,4…位置合せマ
ークA ... One (lower) glass substrate B ... Other (upper) glass substrate 1, 3 ... Predetermined pattern electrode 2, 4 ... Alignment mark
───────────────────────────────────────────────────── フロントページの続き (72)発明者 内山 一栄 東京都千代田区丸の内一丁目4番2号 信 越エンジニアリング株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Ichiei Uchiyama 1-4-2 Marunouchi, Chiyoda-ku, Tokyo Shin-Etsu Engineering Co., Ltd.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34460892AJPH06194637A (en) | 1992-12-24 | 1992-12-24 | Method for sticking glass substrate for liquid crystal display plate |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34460892AJPH06194637A (en) | 1992-12-24 | 1992-12-24 | Method for sticking glass substrate for liquid crystal display plate |
| Publication Number | Publication Date |
|---|---|
| JPH06194637Atrue JPH06194637A (en) | 1994-07-15 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34460892APendingJPH06194637A (en) | 1992-12-24 | 1992-12-24 | Method for sticking glass substrate for liquid crystal display plate |
| Country | Link |
|---|---|
| JP (1) | JPH06194637A (en) |
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