JPS62227117A - Manufacture of liquid crystal display element - Google Patents
Manufacture of liquid crystal display elementInfo
- Publication number
- JPS62227117A JPS62227117A JP7153386A JP7153386A JPS62227117A JP S62227117 A JPS62227117 A JP S62227117A JP 7153386 A JP7153386 A JP 7153386A JP 7153386 A JP7153386 A JP 7153386A JP S62227117 A JPS62227117 A JP S62227117A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- injection holes
- crystal injection
- sealing
- comb
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000002347 injection Methods 0.000 claims abstract description 34
- 239000007924 injection Substances 0.000 claims abstract description 34
- 239000011347 resin Substances 0.000 claims abstract description 25
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 239000011521 glass Substances 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 239000000565 sealant Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims 1
- 229920001187 thermosetting polymer Polymers 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 2
- 230000035515 penetration Effects 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000007650 screen-printing Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は液晶表示素子の製造方法において、側面液晶注
入孔の封目方法の改良に関するものであり、特に、複数
個の側面液晶注入孔を有する大型液晶表示素子における
封目方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an improvement in the method of sealing side liquid crystal injection holes in a manufacturing method of liquid crystal display elements, and particularly relates to a method for sealing side liquid crystal injection holes. The present invention relates to a sealing method for a liquid crystal display element.
従来の技術
近年、液晶表示素子は、薄型化および低消費電力化が可
能な点で使用量が著しく増加してきたが、最近では、こ
れらに加え、大画面の液晶表示素子の使用も増加しつつ
ある。Conventional technology In recent years, the use of liquid crystal display elements has increased significantly due to their ability to be made thinner and consume less power. be.
従来、この種の大画面の液晶表示素子の製造方法は、第
２図および第３図に示すように、２枚のガラス基板１．
２を貼り合わせ、液晶封入用の間隙を形成するだめの封
止剤３を間欠的に切り欠いて、側面に液晶注入孔６を複
数個形成し、液晶４を注入したのち、液晶注入孔６に注
射器、定量吐出装置等で、絶縁性樹脂５を個々に供給・
付着させたのち、さらにスパチュラ、指等で押し込み、
液晶注入孔６に充填させ、封口させる方法であった。Conventionally, a method for manufacturing this type of large-screen liquid crystal display device involves two glass substrates 1. as shown in FIGS. 2 and 3.
2 are pasted together, the sealant 3 that forms a gap for liquid crystal filling is intermittently cut out, a plurality of liquid crystal injection holes 6 are formed on the side surfaces, and after the liquid crystal 4 is injected, the liquid crystal injection holes 6 are Insulating resin 5 is individually supplied using a syringe, metered dispensing device, etc.
After adhering, press further with a spatula, fingers, etc.
This method was to fill the liquid crystal injection hole 6 and seal it.
発明が解決しようとする問題点
このような従来の方法によれば、複数個の側面液晶注入
孔６に絶縁性樹脂６を個々に供給・付着させ、かつ、ス
パチュラ、指等で押し込むものであるため、多大な製造
時間を要し、ふた、押し込む圧力９時間等のばらつきに
よっては、絶縁性樹脂５が充分に液晶注入孔６に充填さ
れず、ガラス基板１．２の密着性を悪くして、液晶４が
漏れたり、また逆に、絶縁性樹脂５が充填されすぎて、
液晶による表示部分にまで浸透して画素欠陥を持たらす
等、歩留まりの低下９品質低下の大きな要因となってい
た。Problems to be Solved by the Invention According to such a conventional method, insulating resin 6 is individually supplied and adhered to a plurality of side liquid crystal injection holes 6, and then pushed in with a spatula, a finger, etc. Therefore, a large amount of manufacturing time is required, and due to variations in the lid, pressure for pushing, etc., the insulating resin 5 may not be sufficiently filled into the liquid crystal injection hole 6, which may deteriorate the adhesion of the glass substrate 1.2. , the liquid crystal 4 may leak, or conversely, the insulating resin 5 may be filled too much.
It penetrated into the liquid crystal display area and caused pixel defects, which was a major factor in lowering yield and quality.
本発明は簡単な方法により、適切な封口が行えるように
することを目的とするものである。The object of the present invention is to enable proper sealing by a simple method.
問題点を解決するだめの手段
前記問題点を解決するために、本発明の液晶表示素子の
製造方法は、内面に透明電極が形成された２枚のガラス
基板間に介在させる液晶封止用封止剤を部分的に切り欠
くことによって液晶注入孔を複数個形成し、前記液晶注
入孔を介して液晶を注入したのち、前記複数個の液晶注
入孔の個々の孔長さと同等以上の平担な凸部を有するく
し形治具の凸部先端部に前記絶縁性樹脂を付着させたの
ち、前記複数個の液晶注入孔に、前記くし形治具を押し
あて、同時に封口・充填する方法である。Means for Solving the Problems In order to solve the above-mentioned problems, the method for manufacturing a liquid crystal display element of the present invention uses a seal for liquid crystal sealing interposed between two glass substrates each having a transparent electrode formed on the inner surface. After forming a plurality of liquid crystal injection holes by partially cutting out the blocking agent and injecting liquid crystal through the liquid crystal injection holes, After the insulating resin is attached to the tip of the convex part of a comb-shaped jig having a convex part, the comb-shaped jig is pressed against the plurality of liquid crystal injection holes, and the liquid crystal injection holes are sealed and filled at the same time. be.
作用
前記製造方法によれば、液晶注入孔部分に、絶縁性樹脂
が、くし形治具の平担な凸部先端部によって同時にかつ
均一に押しあてられるため、一度に複数個の液晶注入孔
の封口作業が可能で、かつ、液晶表示部分に充填されす
ぎたり、また充填不足による、液晶漏れ等を生じないな
ど、高気密性を有す液晶表示素子部を形成できる。Effect According to the manufacturing method described above, the insulating resin is simultaneously and uniformly pressed against the liquid crystal injection hole portion by the flat convex tip of the comb-shaped jig, so that multiple liquid crystal injection holes are simultaneously pressed. It is possible to form a liquid crystal display element portion that can be sealed and has high airtightness, such as not causing liquid crystal leakage due to overfilling or insufficient filling of the liquid crystal display portion.
実施例 以下、本発明の実施例を図面に基づいて説明する。Example Embodiments of the present invention will be described below based on the drawings.
まず、２枚のガラス基板１，２上に、所定のパターンで
透明電極をおのおの形成する。次に、このうちの一方の
ガラス基板１の周縁部の一部分番間欠的に残して、熱硬
化性樹脂からなる液晶封止用封止剤３をスクリーン印刷
により形成する。First, transparent electrodes are formed in a predetermined pattern on two glass substrates 1 and 2, respectively. Next, a liquid crystal sealing agent 3 made of a thermosetting resin is formed by screen printing, leaving a portion of the peripheral edge of one of the glass substrates 1 intermittently.
次に、他方のガラス基板２を、前記一方のガラス基板と
互いに対向させ貼シ合わせたものが第３図に示すもので
ある。次に、これらを１５０’Ｃで１８０分乾燥させた
後、前記液晶封止用封止剤３で間欠的に残した部分を側
面液晶注入孔６とすべく、ダイヤモンド刃等で傷をつけ
た後切断する。Next, the other glass substrate 2 and the one glass substrate are pasted together facing each other, as shown in FIG. 3. Next, after drying these at 150'C for 180 minutes, the parts left intermittently with the sealant 3 for liquid crystal sealing were scratched with a diamond blade etc. to form side liquid crystal injection holes 6. Cut later.
これにより複数個の液晶注入孔６を形成する。そして、
真空槽内にて、液晶注入孔６を有するガラス基板に液晶
４を注入する。次に、第１図に示すような複数個の液晶
注入孔６の個々の孔長さと同等以上の平担な凸部７＆を
有するくし形治具７の凸部Ｔ＆先端部に、絶縁性樹脂５
を付着させたのち、前記複数個の液晶注入孔６に押しあ
てる。これにより、同時に、複数個の液晶注入孔６に封
口樹脂（絶縁性樹脂）を充填させる。なお、前記封口樹
脂を液晶注入孔ｅに容易に充填させるため、液晶４が注
入されたガラス基板１．２を予め加熱しておくと液晶４
が熱収縮により空隙をつくるため、更に良い。また、前
記、くし形治具７は、アルミ製等の剛体でも良いが、封
１樹脂の押し込みやすさなどから、ウレタンゴム、シリ
コンゴム等の弾性体が好ましい。また封口樹脂としては
熱硬化性樹脂等が好ましく、特に密着性にすぐれたエポ
キン樹脂が良い。また、前記くし形治具７の凸部７ａの
長さは、液晶注入孔６の個々の孔長さと同等以上のもの
でなければならない。孔長さ以下であると封口樹脂が充
分に充填されず液晶漏れ等を生じる。As a result, a plurality of liquid crystal injection holes 6 are formed. and,
A liquid crystal 4 is injected into a glass substrate having a liquid crystal injection hole 6 in a vacuum chamber. Next, as shown in FIG. 5
After adhering, it is pressed against the plurality of liquid crystal injection holes 6. As a result, a plurality of liquid crystal injection holes 6 are filled with sealing resin (insulating resin) at the same time. In addition, in order to easily fill the liquid crystal injection hole e with the sealing resin, if the glass substrate 1.2 into which the liquid crystal 4 is injected is heated in advance, the liquid crystal 4
It is even better because it creates voids through heat contraction. The comb-shaped jig 7 may be made of a rigid body such as aluminum, but is preferably made of an elastic body such as urethane rubber or silicone rubber in view of the ease with which the resin of the seal 1 can be pushed into the jig 7. Further, as the sealing resin, a thermosetting resin or the like is preferable, and an Epoquine resin having excellent adhesiveness is particularly preferable. Further, the length of the convex portion 7a of the comb-shaped jig 7 must be equal to or longer than the length of each of the liquid crystal injection holes 6. If it is less than the hole length, the sealing resin will not be filled sufficiently and liquid crystal leakage will occur.
このようにして得られた液晶表示素子は、液晶の漏れは
全くなく、また、表示部分まで封口樹脂が浸透すること
もなく、高品質、高信頼性のものとなる。The liquid crystal display element thus obtained has no liquid crystal leakage at all, and no sealing resin penetrates into the display area, resulting in high quality and high reliability.
発明の効果
以上述べたように本発明によれば、平担な凸部を有する
くし形治具を使用するという簡単な製造工法により、従
来問題となっていた、液晶漏れや、表示部への浸透等の
品質低下や、複数個の液晶注入孔を個別に封口するとい
う無駄が、同時に解消できるため、量産性の向上や高信
頼性が図れる等工業的価値大なるものである。Effects of the Invention As described above, according to the present invention, the conventional problem of liquid crystal leakage and damage to the display area can be avoided by using a simple manufacturing method that uses a comb-shaped jig with flat convex parts. Since quality deterioration due to penetration and the waste of individually sealing multiple liquid crystal injection holes can be eliminated at the same time, it has great industrial value, such as improved mass productivity and high reliability.
第１図は本発明の一実施例による方法に用いたくし形治
其の斜視図、第２図は本発明の一実施例および従来例に
おける、液晶表示素子の断面図、第３図は同じく本発明
の実施例および従来例において複数個の側面液晶注入孔
を形成した封止剤パターンの正面図である。
１．２・・・・・・ガラス基板、３・・・・・・液晶封
入用封止剤、４・・・・・・液晶、５・・・・・・絶縁
性樹脂（封口樹脂）、６・・・・・・液晶注入孔、７・
・・・・・くし形治具、７ａ・・・・・・凸部。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第２図
第３図FIG. 1 is a perspective view of a comb-shaped jig used in a method according to an embodiment of the present invention, FIG. 2 is a sectional view of a liquid crystal display element in an embodiment of the present invention and a conventional example, and FIG. FIG. 3 is a front view of a sealant pattern in which a plurality of side liquid crystal injection holes are formed in an embodiment of the invention and a conventional example. 1.2...Glass substrate, 3...Sealant for liquid crystal encapsulation, 4...Liquid crystal, 5...Insulating resin (sealing resin), 6...Liquid crystal injection hole, 7.
...Comb-shaped jig, 7a...Protrusion. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3
Claims (1)
させる液晶封止用封止剤を部分的に切り欠くことによっ
て液晶注入孔を複数個形成し、前記液晶注入孔を介して
液晶を注入したのち、絶縁性樹脂によって前記液晶注入
孔を封口する際に、前記複数個の液晶注入孔の個々の孔
長さと同等以上の平担な凸部を有するくし形治具の凸部
先端部に前記絶縁性樹脂を付着させたのち、前記複数個
の液晶注入孔に前記くし形治具の凸部を押しあてて絶縁
性樹脂により封口することを特徴とする液晶表示素子の
製造方法。A plurality of liquid crystal injection holes are formed by partially cutting out a sealant for liquid crystal sealing that is interposed between two glass substrates with transparent electrodes formed on the inner surface, and the liquid crystal is injected through the liquid crystal injection holes. After injection, when sealing the liquid crystal injection hole with an insulating resin, the tip of the protrusion of a comb-shaped jig having a flat protrusion equal to or longer than the individual hole length of the plurality of liquid crystal injection holes. A method for manufacturing a liquid crystal display element, comprising: adhering the insulating resin to the plurality of liquid crystal injection holes, and then pressing the protrusions of the comb-shaped jig against the plurality of liquid crystal injection holes and sealing them with the insulating resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7153386A JPS62227117A (en) | 1986-03-28 | 1986-03-28 | Manufacture of liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7153386A JPS62227117A (en) | 1986-03-28 | 1986-03-28 | Manufacture of liquid crystal display element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62227117A true JPS62227117A (en) | 1987-10-06 |
Family
ID=13463467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7153386A Pending JPS62227117A (en) | 1986-03-28 | 1986-03-28 | Manufacture of liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62227117A (en) |
-
1986
- 1986-03-28 JP JP7153386A patent/JPS62227117A/en active Pending
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