JP2692833B2 - Liquid crystal cell manufacturing method - Google Patents
Liquid crystal cell manufacturing methodInfo
- Publication number
- JP2692833B2 JP2692833B2 JP63042517A JP4251788A JP2692833B2 JP 2692833 B2 JP2692833 B2 JP 2692833B2 JP 63042517 A JP63042517 A JP 63042517A JP 4251788 A JP4251788 A JP 4251788A JP 2692833 B2 JP2692833 B2 JP 2692833B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- curing agent
- sealant
- crystal cell
- curing
- 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.)
- Expired - Fee Related
Links
Landscapes
- Liquid Crystal (AREA)
- Sealing Material Composition (AREA)
- Epoxy Resins (AREA)
Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） 本発明は、液晶セルの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a method for producing a liquid crystal cell.
（従来の技術） 一般に液晶セル（例えばカラー液晶セル）は、第１図
に示す構造になっている。即ち、図中の１は下部ガラス
基板である。この基板１の表面（内面）上には、薄膜ト
ランジスタのゲート電極に接続された走査線及びドレイ
ン電極もしくはソース電極に接続された信号線２及びド
レイン電極もしくはソース電極に接続された画素電極３
が形成されている。また、前記薄膜トランジスタ及び画
素電極３が形成された基板１の表面上には例えばポリイ
ミドからなる下部配向膜（図示せず）が被覆されてい
る。前記基板１には、上部ガラス基板４が所定の間隔を
あけて配置されている。この下部ガラス基板４の下面
（内面）には、ブラックマトリックス５で分離された複
数のカラーフィルタ６が設けられている。このカラーフ
ィルタ６を含む前記下部ガラス基板４の下面には、ITO
等からなる透明電極７が設けられ、かつ該透明電極７上
には例えばポリイミドからなる上部配向膜（図示せず）
が被覆されている。そして、前記各基板１、４の配向膜
間には枠状のシール部８が設けられ、かつこれら配向膜
及びシール部８で囲繞された空間には液晶９が収容され
ている。なお、前記下部ガラス基板１及び上部ガラス基
板４の上面には夫々偏向膜10a、10bが設けられている。(Prior Art) Generally, a liquid crystal cell (for example, a color liquid crystal cell) has a structure shown in FIG. That is, 1 in the figure is a lower glass substrate. On the surface (inner surface) of the substrate 1, the scanning line connected to the gate electrode of the thin film transistor, the signal line 2 connected to the drain electrode or the source electrode, and the pixel electrode 3 connected to the drain electrode or the source electrode.
Are formed. Further, a lower alignment film (not shown) made of, for example, polyimide is coated on the surface of the substrate 1 on which the thin film transistor and the pixel electrode 3 are formed. An upper glass substrate 4 is arranged on the substrate 1 at a predetermined interval. A plurality of color filters 6 separated by a black matrix 5 are provided on the lower surface (inner surface) of the lower glass substrate 4. On the lower surface of the lower glass substrate 4 including the color filter 6, ITO
Is provided on the transparent electrode 7, and an upper alignment film (not shown) made of polyimide, for example, is provided on the transparent electrode 7.
Is coated. A frame-shaped seal portion 8 is provided between the alignment films of the substrates 1 and 4, and a liquid crystal 9 is housed in the space surrounded by the alignment film and the seal portion 8. Deflection films 10a and 10b are provided on the upper surfaces of the lower glass substrate 1 and the upper glass substrate 4, respectively.
ところで、上述した液晶セルは次のような方法により
製造されている。まず、下部ガラス基板１の片面に薄膜
トランジスタ、画素電極３、走査線、信号線２を形成
し、その上にポリイミド膜を被覆し、ラビング処理して
配向線を形成する。また、上部ガラス基板４の片面にブ
ラックマトリックス５で分離されたカラーフィルタ６を
形成した後、透明電極７を配置し、更にその上にポリイ
ミド膜を被覆し、ラビング処理して配向膜を形成する。
つづいて、前記上部ガラス基板４の配向膜上にシール剤
をスクリーン印刷等により枠状に印刷する。なお、この
枠状シール剤の一部には液晶を注入するための切欠部が
形成されている。一方、下部ガラス基板１の配向膜上に
粒径が一定なアルミナ粉末やガラス繊維等のスペーサを
分散させる。次いで、前記ガラス基板１、４をそれらの
配向膜側に形成したシール剤及びスペーサが当接するよ
うに貼り合わせ、更に加熱してシール剤を硬化させるこ
とにより配向膜間にシール部８を形成する。しかる後、
シール部８の切欠部から配向膜及びシール部８で囲繞さ
れた空間内に液晶９を注入し、シール部８の切欠部を封
口し、更にガラス基板１、４の外側表面に偏光板10a,10
bを張付けて液晶セルを製造する。By the way, the above-mentioned liquid crystal cell is manufactured by the following method. First, the thin film transistor, the pixel electrode 3, the scanning line, and the signal line 2 are formed on one surface of the lower glass substrate 1, a polyimide film is coated on the thin film transistor, and a rubbing process is performed to form an alignment line. In addition, after the color filters 6 separated by the black matrix 5 are formed on one surface of the upper glass substrate 4, the transparent electrode 7 is arranged, the polyimide film is further coated thereon, and the alignment film is formed by rubbing treatment. .
Subsequently, a sealant is printed in a frame shape on the alignment film of the upper glass substrate 4 by screen printing or the like. A cutout for injecting liquid crystal is formed in a part of the frame-shaped sealant. On the other hand, spacers such as alumina powder and glass fiber having a constant particle size are dispersed on the alignment film of the lower glass substrate 1. Next, the glass substrates 1 and 4 are bonded so that the sealant and spacers formed on the alignment film side thereof come into contact with each other, and further heated to cure the sealant to form a seal portion 8 between the alignment films. . After a while
The liquid crystal 9 is injected into the space surrounded by the alignment film and the seal portion 8 from the cut portion of the seal portion 8, the cut portion of the seal portion 8 is sealed, and the polarizing plates 10a, 10a, Ten
A liquid crystal cell is manufactured by attaching b.
上述した液晶セルの製造に際しシール工程で使用され
るシール剤は、従来より種々の組成のものが知られてい
るが、次のような問題があった。即ち、シール時もしく
は液晶の注入時に配向膜上にシール剤に基づく汚染が発
生し、局部的な液晶の配向乱れを招く。シール剤中のイ
オン性不純物の液晶内への混入によりしきい値電圧の増
加、リーク電流の増加を招く。Sealing agents used in the sealing step in manufacturing the above-described liquid crystal cell have conventionally been known to have various compositions, but have the following problems. That is, when the liquid crystal is sealed or the liquid crystal is injected, contamination due to the sealant occurs on the alignment film, causing local alignment disorder of the liquid crystal. Mixing of ionic impurities in the sealant into the liquid crystal causes increase in threshold voltage and leak current.
（発明が解決しようとする課題） 本発明は、シール部周辺の汚染を防止した高信頼性で
高性能の液晶セルの製造方法を提供しようとするもので
ある。(Problems to be Solved by the Invention) The present invention is intended to provide a method of manufacturing a liquid crystal cell with high reliability and high performance, which prevents contamination around the seal portion.
［発明の構成］ （課題を解決するための手段） 本発明に係わる液晶セルの製造方法は、２枚の基板お
よびこれら基板間に設けられたシール部によって囲繞さ
れた空間内に液晶を充填した構造の液晶セルの製造にお
いて、 主剤と、この主剤を硬化させる第１の硬化剤と、前記
主剤を前記第１の硬化剤より高い温度で硬化させる第２
の硬化剤とを主成分とするシール剤を前記各基板間に配
する工程と、 加熱処理を施して前記２枚の基板間に配されたシール
剤を前記第１の硬化剤により硬化し、さらに加熱温度を
上昇させて前記シール剤を前記第２の硬化剤により完全
硬化させることにより前記２枚の基板間に所定厚さのシ
ール部を形成する工程と、 前記２枚の基板およびこれら基板間に設けられたシー
ル部によって囲繞された空間内に液晶を注入した後、封
止する工程と を具備したことを特徴とするものである。[Structure of the Invention] (Means for Solving the Problems) In the method for manufacturing a liquid crystal cell according to the present invention, liquid crystal is filled in a space surrounded by two substrates and a seal portion provided between the substrates. In manufacturing a liquid crystal cell having a structure, a main agent, a first curing agent that cures the main agent, and a second curing agent that cures the main agent at a temperature higher than that of the first curing agent.
A step of arranging a sealant having a curing agent of 1 as a main component between the substrates, and a heat treatment to cure the sealant disposed between the two substrates with the first curing agent, Forming a seal portion having a predetermined thickness between the two substrates by further raising the heating temperature and completely curing the sealing agent with the second curing agent; and the two substrates and these substrates. A step of injecting liquid crystal into a space surrounded by a seal portion provided therebetween and then sealing the liquid crystal.
上記主剤としては、例えばゴム系樹脂、アクリル系樹
脂、エポキシ系樹脂、不飽和ポリエステル系樹脂、ウレ
タン系樹脂、フェノール系樹脂、シリコーン系樹脂、塩
化ビニル系樹脂等を挙げることができるが、接着性、機
械的強度の観点からエポキシ系樹脂により主剤を形成す
ることが望ましい。かかるエポキシ系樹脂は、特に制限
されないが、ビスフェノールＡ型エポキシ樹脂、ビスフ
ェノールＦ型エポキシ樹脂、クレゾールノボラック型エ
ポキシ樹脂、フェノールノボラック型エポキシ樹脂、ポ
リグリコール型エポキシ樹脂、脂環式エポキシ樹脂を挙
げることができ、これらエポキシ樹脂は単独でも複数の
組合わせで使用してもよい。特に好ましいエポキシ樹脂
を具体的に例示すると、シェル化学社製商品名のエピコ
ート834、エピコート836、エピコート1001、エピコート
1004、チバガイギー社製商品名のアラダイトGY252、ア
ラダイトGY250、アラダイトGY260、アラダイトGY280、
アラダイトGY6071、アラダイトGY7071、ダウケミカルイ
ンターナショナル社製商品名のダウエポキシ樹脂337、
ダウエポキシ樹脂661、ダウエポキシ樹脂664、ダウエポ
キシ樹脂667等を挙げることができる。これらは、単独
もしくは複数の組合わせで使用することができる。Examples of the main component include rubber-based resins, acrylic-based resins, epoxy-based resins, unsaturated polyester-based resins, urethane-based resins, phenol-based resins, silicone-based resins, vinyl chloride-based resins, etc. From the viewpoint of mechanical strength, it is desirable to form the main component with an epoxy resin. The epoxy resin is not particularly limited, and examples thereof include bisphenol A type epoxy resin, bisphenol F type epoxy resin, cresol novolac type epoxy resin, phenol novolac type epoxy resin, polyglycol type epoxy resin, and alicyclic epoxy resin. However, these epoxy resins may be used alone or in combination. Specific examples of particularly preferable epoxy resins include Epicoat 834, Epicoat 836, Epicoat 1001, and Epicoat of trade names manufactured by Shell Chemical Co.
1004, Ciba Geigy product name Aladite GY252, Aladite GY250, Aladite GY260, Aladite GY280,
Aladite GY6071, Aladite GY7071, Dow Epoxy Resin 337 under the product name of Dow Chemical International,
Dow epoxy resin 661, Dow epoxy resin 664, Dow epoxy resin 667 and the like can be mentioned. These can be used alone or in combination of two or more.
上記第１の硬化剤は、25℃から80℃未満の温度で前記
主剤を硬化させ始めるものが望ましい。この硬化剤は、
液体又は粉末の状態で使用される。かかる第１の硬化剤
としては、例えばメタフェニレンジアミン、4,4−メタ
レンジアニリン、ジアミノジフェノルスルフホン、メタ
キシレンジアミン、パラキシレンジアミン、イミダゾー
ル、ベンジルジメチルアミン、トリジメチルアミノメチ
ルフェノール、ジメチルアミノメチルフェノール等を挙
げることができる。これらは、単独もしくは複数の組合
わせで使用することができる。The first curing agent is preferably one that begins to cure the base material at a temperature of 25 ° C to less than 80 ° C. This curing agent
Used in liquid or powder form. Examples of the first curing agent include, for example, metaphenylenediamine, 4,4-metalenedianiline, diaminodiphenorsulfone, metaxylenediamine, paraxylenediamine, imidazole, benzyldimethylamine, tridimethylaminomethylphenol, dimethyl. Aminomethylphenol etc. can be mentioned. These can be used alone or in combination of two or more.
上記第２の硬化剤は、80〜180℃の温度範囲で前記主
剤を硬化させ始めるものが望ましい。かかる第２の硬化
剤としては、例えばジシアンジアミド、2,6−キシレニ
ル−ビグラニドなどのシアンジアミド誘導体;BF3・モノ
エチルアミンコンプレックス、BF3・トリエチルアミン
コンプレックス、BF3・ピペリジンコンプレックス、BF3
・アニリンコンプレックス、BF3・ｐ−トリイジンコン
プレックス、BF3・Ｎ−メチルアニリンコンプレック
ス、BF3・Ｎ−エチルアニリンコンプレックス、BF3・2,
4−ジメチルアニリンコンプレックス、BF3・ベンジルア
ミンコンプレックス、BF3・N,N−ジメチルアニリンコン
プレックス、BF3・トリエタノールアミンコンプレック
スなどのBF3コンンプレックス；アジピン酸ジヒドラジ
ド、セバシン酸ジヒドラジド、イソフタル酸ジヒドラジ
ドなどのジヒドラジド類；テトラメチルグアニジン、ブ
チリルグアニジン、ペンチルグアニジン、ヘキシルグア
ニジンなどのグアニジン類；無水フタル酸、無水マレイ
ン酸、無水ドデシルコハク酸、無水ヘキサヒドロフタル
酸、無水メチルナジック酸、無水ピロメリット酸、無水
クロレンディック酸などの酸無水物;1,6−ヘキシルジカ
ルボン酸、1,7−ヘプチルカルボン酸、1,8−オクチルジ
カルボン酸、1,9−ノニルジカルボン酸、1,10−デシル
ジカルボン酸、1,12−ドデシルカルボン酸、1,14−テト
ラデシルジカルボン酸などの直鎖二塩基カルボン酸等を
挙げることができる。また、第２の硬化剤としては前記
第１の硬化剤で使用した芳香族アミンをゼラチン、セル
ロース系高分子もしくは電界高分子からなるマイクロカ
プセル内に封入したものも同様に使用できる。The second curing agent is preferably one that begins to cure the main agent in the temperature range of 80 to 180 ° C. As such a second curing agent, for example dicyandiamide, 2,6-xylenyl - dicyandiamide derivatives such Biguranido; BF 3 · monoethylamine complex, BF 3 · triethylamine complex, BF 3 · piperidine complex, BF 3
・ Aniline complex, BF 3・ p-triidine complex, BF 3・ N-methylaniline complex, BF 3・ N-ethylaniline complex, BF 3・ 2,
4-dimethylaniline complex, BF 3 · benzylamine complex, BF 3 · N, N-dimethylaniline complex, BF 3 · triethanolamine complex and other BF 3 complexes; adipic acid dihydrazide, sebacic acid dihydrazide, isophthalic acid dihydrazide Dihydrazides such as; guanidines such as tetramethylguanidine, butyrylguanidine, pentylguanidine, and hexylguanidine; phthalic anhydride, maleic anhydride, dodecylsuccinic anhydride, hexahydrophthalic anhydride, methylnadic acid anhydride, pyromellitic anhydride Acids, acid anhydrides such as chlorendic anhydride; 1,6-hexyldicarboxylic acid, 1,7-heptylcarboxylic acid, 1,8-octyldicarboxylic acid, 1,9-nonyldicarboxylic acid, 1,10-decyl Dicarboxylic acid, 1,12-dodecyl Carboxylic acid, and 1,14-linear dibasic carboxylic acids such as tetradecyl dicarboxylic acid. Further, as the second curing agent, the one obtained by encapsulating the aromatic amine used in the first curing agent in a microcapsule made of gelatin, a cellulosic polymer or an electric field polymer can be similarly used.
上記第１の硬化剤の配合割合は、主剤100重量部に対
して0.1〜40重量部、第２の硬化剤の配合割合は主剤100
重量部に対して0.1〜40重量部とすることが望ましい。
この理由は、これら硬化剤の配合量を0.1重量部未満に
すると硬化が充分に進行せず、かといってそれらの配合
量が40重量部を越えると耐湿性が低下する恐れがあるか
らである。The mixing ratio of the first curing agent is 0.1 to 40 parts by weight with respect to 100 parts by weight of the main agent, and the mixing ratio of the second curing agent is 100 parts by weight of the main agent.
It is desirable that the amount is 0.1 to 40 parts by weight with respect to parts by weight.
The reason for this is that if the blending amount of these curing agents is less than 0.1 parts by weight, curing will not proceed sufficiently, but if the blending amount of these curing agents exceeds 40 parts by weight, the moisture resistance may decrease. .
上記シール剤は、前記成分以外に必要に応じて粒径の
揃った粉末シリカ、ガラス繊維などのフィラー、増粘
剤、カップリング剤等の添加物を配合することができ
る。これらの添加物は、主剤100重量部に対し、50重量
部以下、好ましくは30重量部以下配合することが望まし
い。In addition to the above-mentioned components, the above-mentioned sealing agent may be mixed with additives such as powder silica having a uniform particle size, a filler such as glass fiber, a thickener, a coupling agent and the like, if necessary. It is desirable that these additives be blended in an amount of 50 parts by weight or less, preferably 30 parts by weight or less, based on 100 parts by weight of the main agent.
次に、本発明に係わる液晶セルの製造方法に詳細に説
明する。Next, a method for manufacturing a liquid crystal cell according to the present invention will be described in detail.
まず、第１の硬化剤（25℃から80℃未満の温度で前記
主剤を硬化させ始める硬化剤）を除く他のシール剤成
分、つまり主剤及び第２の硬化剤（80〜180℃の温度範
囲で前記主剤を硬化させ始める硬化剤）、更に必要に応
じてフィラー、増粘剤、カップリング剤及び溶剤を添加
して混練ロールなどにより充分に混合分散する。つづい
て、前記シール素材に第１の硬化剤を所定量添加、好ま
しくは使用直前に添加し、スパチュラ等で充分に混合、
溶解してシール剤を調製する。こうして調製されたシー
ル剤は、室温で徐々に硬化する。但し、かかるシール剤
の室温の硬化時間（使用可能時間）は、成分の種類及び
組成比率により異なるが、６〜36時間と広い時間幅での
硬化時間の調節が可能であるため、印刷機や液晶セルの
組立て装置に合せてその使用可能時間を決定すればよ
い。First, other sealing agent components except the first curing agent (curing agent that starts curing the main agent at a temperature of 25 ° C to less than 80 ° C), that is, the main agent and the second curing agent (temperature range of 80 to 180 ° C) And a filler, a thickener, a coupling agent, and a solvent, if necessary, and sufficiently mixed and dispersed by a kneading roll or the like. Subsequently, a predetermined amount of the first curing agent is added to the seal material, preferably just before use, and thoroughly mixed with a spatula or the like.
Dissolve to prepare a sealant. The sealant thus prepared gradually cures at room temperature. However, the curing time (usable time) of the sealant at room temperature varies depending on the type and composition ratio of the components, but it is possible to adjust the curing time in a wide time range of 6 to 36 hours. The usable time may be determined according to the liquid crystal cell assembling apparatus.
次いで、配向処理が施された配向膜を有する基板上に
前記シール剤をスクリーン印刷等の方法により枠状に印
刷する。この枠状シール剤の一部には、液晶を注入する
ための切欠部が形成されている。つづいて、同様に配向
処理が施された配向膜を有する他方の基板を前記基板に
それらの配向膜が対向するように貼り合わせる。なお、
この貼り合わせに先立ってシール剤が印刷されていない
他方の基板の配向膜上に粒径が一定なアルミナ粉末、ガ
ラス繊維、ミクロパール等のスペーサを分散させてもよ
い。ひきつづき、前記基板を加圧した状態にて電気炉等
に設置し、室温又は室温より高く80℃未満の温度まで昇
温して30〜60分間加熱する。この時、シール剤はその中
に添加された低温硬化作用を有する第１の硬化剤により
主剤が僅かに硬化剤される。つまり、加熱によるシール
材の粘度低下を生じる前に硬化反応が進行して溶融流
れ、配向膜上への滲み出しが防止される。更に、加圧を
続行しながら前記電気炉内の温度を80〜200℃、好まし
くは150〜180℃まで昇温し、30分間から２時間加熱処理
してシール剤中の高温硬化作用を有する第２の硬化剤に
より主剤を充分に硬化させ、配向膜間にシール部を形成
する。この時、加熱温度が80℃未満もしくは加熱時間が
30分間未満の場合では第２の硬化剤の硬化が不十分とな
り、シール部の機械的特性が低下する恐れがある。一
方、加熱温度が180℃を越えるとシール部が熱劣化する
恐れがある。しかる後、シール部の切欠部から配向膜及
びシール部で囲繞された空間内に液晶を注入し、シール
部の切欠部を封口し、更に基板の外側表面に偏光板を張
付けて液晶セルを製造する。ここに用いる液晶として
は、例えばビフェニル型液晶、シッフ型液晶、エステル
型液晶などのネマチック型液晶を挙げることができる。
これらの液晶は、単独或いは２種以上組み合わせて使用
してもよい。Next, the sealant is printed in a frame shape by a method such as screen printing on the substrate having the alignment film subjected to the alignment treatment. A notch for injecting liquid crystal is formed in a part of the frame-shaped sealant. Subsequently, the other substrate having the alignment film similarly subjected to the alignment treatment is attached to the substrate so that the alignment films face each other. In addition,
Prior to this bonding, a spacer such as alumina powder having a constant particle diameter, glass fiber, or micropearl may be dispersed on the alignment film of the other substrate on which the sealant is not printed. Subsequently, the substrate is placed under pressure in an electric furnace or the like, heated to room temperature or a temperature higher than room temperature and lower than 80 ° C. and heated for 30 to 60 minutes. At this time, the base material of the sealant is slightly hardened by the first hardening agent having a low-temperature hardening effect added therein. That is, the curing reaction proceeds and melts before the viscosity of the sealing material decreases due to heating, and the exudation onto the alignment film is prevented. Furthermore, while continuing pressurization, the temperature in the electric furnace is raised to 80 to 200 ° C, preferably 150 to 180 ° C, and heat treatment is performed for 30 minutes to 2 hours to obtain a high-temperature curing action in the sealant. The main agent is sufficiently cured by the second curing agent to form a seal portion between the alignment films. At this time, the heating temperature is less than 80 ° C or the heating time
If the time is less than 30 minutes, the curing of the second curing agent will be insufficient, and the mechanical properties of the seal portion may deteriorate. On the other hand, if the heating temperature exceeds 180 ° C, the seal part may be thermally deteriorated. Then, liquid crystal is injected from the notch of the seal part into the space surrounded by the alignment film and the seal part, the notch of the seal part is sealed, and a polarizing plate is attached to the outer surface of the substrate to manufacture a liquid crystal cell. To do. Examples of liquid crystals used here include nematic liquid crystals such as biphenyl liquid crystals, Schiff liquid crystals, and ester liquid crystals.
You may use these liquid crystals individually or in combination of 2 or more types.
本発明によれば、２枚の基板間に配されるシール剤と
して主剤と、この主剤を硬化させる第１の硬化剤と、前
記主剤を前記第１の硬化剤より高い温度で硬化させる第
２の硬化剤とを主成分とするものを用いることによっ
て、前記シール剤を加熱硬化させる際、基板上の配向乱
れ、シール材中のイオン性不純物の液晶内への混入を解
消し、かつ配向膜間のシール効果の高いシール部を形成
でき、ひいてはしきい値電圧の増加、リーク電流の増加
のない高信頼性で高性能の液晶セルを高歩留まりで製造
できる。According to the present invention, a main agent as a sealant disposed between two substrates, a first curing agent for curing the main agent, and a second curing agent for curing the main agent at a temperature higher than that of the first curing agent. By using a curing agent containing the curing agent as a main component, when the sealing agent is heat-cured, the alignment disorder on the substrate and the mixing of ionic impurities in the sealing material into the liquid crystal are eliminated, and the alignment film It is possible to form a seal portion having a high sealing effect between them, and thus it is possible to manufacture a highly reliable and high-performance liquid crystal cell with a high yield without an increase in threshold voltage and an increase in leak current.
（発明の実施例） 以下、本発明の実施例を前述した第１図を参照して詳
細に説明する。Embodiments of the Invention Hereinafter, embodiments of the present invention will be described in detail with reference to FIG.
実施例１〜16 まず、一辺が50mmの下部ガラス基板１の片面に薄膜ト
ランジスタ、画素電極３、走査線、信号線２を形成し、
その上にポリイミド溶液（東レ社製商品名;810）を一辺
が49mmの正方形となるようにスクリーン印刷し、150℃
で１時間加熱乾燥した後、ポリイミド膜表面をラビング
処理して配向膜を形成した。また、一辺が50mmの上部ガ
ラス基板４の片面にブラックマトリックス５で分離され
たカラーフィルタ６を形成し、ITOからなる透明電極７
を被覆し、更にその上にポリイミド溶液（東レ社製商品
名;810）を一辺が49mmの正方形となるようにスクリーン
印刷し、150℃で１時間加熱乾燥した後、ポリイミド膜
表面をラビング処理して配向膜を形成した。Examples 1 to 16 First, a thin film transistor, a pixel electrode 3, a scanning line, and a signal line 2 are formed on one surface of a lower glass substrate 1 having a side of 50 mm,
A polyimide solution (trade name: Toray Co., Ltd .; 810) is screen-printed on it so that one side is a 49 mm square, and the temperature is 150 ° C.
After heating and drying for 1 hour, the surface of the polyimide film was rubbed to form an alignment film. Further, a color filter 6 separated by a black matrix 5 is formed on one surface of an upper glass substrate 4 having a side of 50 mm, and a transparent electrode 7 made of ITO is formed.
, A polyimide solution (trade name: Toray Co., Ltd .; 810) is screen-printed on it to form a square with a side of 49 mm, dried by heating at 150 ° C. for 1 hour, and then the polyimide film surface is rubbed. To form an alignment film.
次いで、前記上部ガラス基板４の配向膜上に下記第１
表に示す組成の16種のシール剤を夫々コーナ部に液晶注
入口となる幅5mmの穴が開穴された一辺が48mm、幅1.5mm
の正方形の枠状にスクリーン印刷した後、90℃、80分間
の加熱、乾燥した。一方、下部ガラス基板１の配向膜上
に直径7mmのガラス繊維（スペーサ）を分散させた。Next, the following first layer is formed on the alignment layer of the upper glass substrate 4.
Each of the 16 types of sealant with the composition shown in the table has a hole with a width of 5 mm that serves as a liquid crystal injection port at each corner, with a side of 48 mm and a width of 1.5 mm.
After being screen-printed in the shape of a square frame, was heated at 90 ° C. for 80 minutes and dried. On the other hand, glass fibers (spacers) having a diameter of 7 mm were dispersed on the alignment film of the lower glass substrate 1.
次いで、前記ガラス基板１、４をそれらの配向膜側に
形成した枠状シール剤及びスペーサが当接するように貼
り合わせた後、通常の液晶セル用封着治具を用いてガラ
ス基板１、４間に20kg/cm2の圧力を加えながら150℃、
１時間の加熱を行なって枠状シール剤を硬化させること
により配向膜間にシール部８を形成した。つづいて、ネ
マチック型の液晶９をシール部８の穴から配向膜及びシ
ール部８で囲繞された空間内に注入し、シール部８の穴
をUV硬化型接着剤で封口し、更にガラス基板１、４の外
側表面に偏向板10a、10bを張付けて16種のカラー液晶セ
ルを製造した（第１図図示）。Next, the glass substrates 1 and 4 are bonded so that the frame-shaped sealing agent and spacers formed on the alignment film side thereof come into contact with each other, and then the glass substrates 1 and 4 are bonded using a normal liquid crystal cell sealing jig. 150 ℃, while applying a pressure of 20 kg / cm 2 between
The seal portion 8 was formed between the alignment films by heating for 1 hour to cure the frame-shaped sealant. Next, the nematic liquid crystal 9 is injected into the space surrounded by the alignment film and the seal portion 8 from the hole of the seal portion 8, the hole of the seal portion 8 is sealed with a UV curable adhesive, and the glass substrate 1 Polarizing plates 10a and 10b were attached to the outer surface of 4 to manufacture 16 kinds of color liquid crystal cells (shown in FIG. 1).
しかして、本実施例１〜16のカラー液晶セルについて
温度100℃の環境下で100時間放置し、放置後のリーク電
流の増加、しきい値電圧（Vth）の増加及び配向乱れの
有無を測定した。また、各液晶セルについて温度80℃、
湿度95％の環境下で100時間放置し、放置後のリーク電
流の増加、しきい値電圧（Vth）の増加及び配向乱れの
有無を測定した。これらの結果を下記第２表に示した。Then, the color liquid crystal cells of Examples 1 to 16 were allowed to stand for 100 hours in an environment of a temperature of 100 ° C., and after the standing, an increase in leak current, an increase in threshold voltage (Vth), and the presence or absence of alignment disorder were measured. did. In addition, the temperature of each liquid crystal cell is 80 ℃,
After being left for 100 hours in an environment of 95% humidity, the increase in leak current, the increase in threshold voltage (Vth), and the presence or absence of orientation disorder after standing were measured. The results are shown in Table 2 below.
上記第２表から明らかなように芳香族アミンをそのア
ミノ基のモル数がエポキシ樹脂のエポキシ基のモル数よ
り大、つまりエポキシ基に対するアミノ基のモル数の比
（アミノ基／エポキシ基）が１を越えるように配合した
液晶セル用シール剤を用いて製造された液晶セル（実施
例１〜16）は耐熱環境下及び耐湿環境下においても優れ
た特徴を有することがわかる。 As is clear from Table 2 above, the aromatic amine has a mole number of amino groups larger than the mole number of epoxy groups of the epoxy resin, that is, the ratio of the mole number of amino groups to epoxy groups (amino group / epoxy group) is It can be seen that the liquid crystal cells (Examples 1 to 16) produced by using the liquid crystal cell sealant compounded to exceed 1 have excellent characteristics even in a heat resistant environment and a moisture resistant environment.
これに対し、エポキシ基に対するアミノ基のモル数の
比（アミノ基／エポキシ基）Vth）を１以下とした組成
のシール剤を用いた以外、実施例１と同様な方法で製造
した液晶セル（比較例１）について、同様な耐熱テス
ト、耐湿テストを行なった。その結果、耐湿テストでは
リーク電流、しきい値電圧（Vth）がいずれも増加し、
多数の配向乱れが確認された。On the other hand, a liquid crystal cell manufactured in the same manner as in Example 1 except that a sealant having a composition in which the molar ratio of amino groups to epoxy groups (amino group / epoxy group) Vth) was 1 or less was used ( With respect to Comparative Example 1), the same heat resistance test and moisture resistance test were conducted. As a result, leak resistance and threshold voltage (Vth) both increased in the moisture resistance test,
A large number of disordered orientations were confirmed.
また、硬化剤として芳香族アミンに代えて酸無水物で
ある無水フタール酸、無水ヘキサヒドロフタール酸、無
水ピロメリット酸を使用した以外、実施例１と同様な組
成のシール剤を用い、同様な方法で製造した液晶セル
（比較例２〜４）について、同様な耐熱テスト、耐湿テ
ストを行なった。その結果、耐熱テストでは配向乱れが
生じ、かつ耐湿テストではリーク電流、しきい値電圧
（Vth）がいずれも増加し、多数の配向乱れが確認され
た。Further, a sealing agent having the same composition as in Example 1 was used, except that phthalic anhydride, hexahydrophthalic anhydride, and pyromellitic anhydride, which are acid anhydrides, were used instead of the aromatic amine as the curing agent. Liquid crystal cells (Comparative Examples 2 to 4) manufactured by any of the above methods were subjected to the same heat resistance test and moisture resistance test. As a result, orientation disorder was generated in the heat resistance test, and both leak current and threshold voltage (Vth) were increased in the moisture resistance test, and many orientation disorder was confirmed.
実施例17〜32 まず、主剤、第２の硬化剤及び添加剤を下記第３表に
示す割合で混合し、混練ロールにより充分に混合分散さ
せた。つづいて、この混合物に液状の第１の硬化剤を同
第３表に示す割合で添加し、スパラチュラで混合、溶解
して16種の液晶セル用シール剤を調製した。こうして調
製された各シール剤は、室温での硬化時間が６〜36時間
であった。Examples 17 to 32 First, the main agent, the second curing agent and the additives were mixed in the proportions shown in Table 3 below, and sufficiently mixed and dispersed by a kneading roll. Subsequently, a liquid first curing agent was added to this mixture at a ratio shown in Table 3, mixed and dissolved with a spatula to prepare 16 kinds of liquid crystal cell sealing agents. Each of the thus prepared sealants had a curing time at room temperature of 6 to 36 hours.
次いで、一辺が50mmの下部ガラス基板１の片面に薄膜
トランジスタ、画素電極３、走査線、信号線２を形成
し、その上にポリイミド溶液（東レ社製商品名;810）を
一辺が49mmの正方形となるようにスクリーン印刷し、15
0℃で１時間加熱乾燥した後、ポリミド膜表面をラビン
グ処理して配向膜を形成した。また、一辺が50mmの上部
ガラス基板４の片面にブラックマトリックス５で分離さ
れたカラーフィルタ６を形成し、ITOからなる透明電極
７を被覆し、更にその上にポリイミド溶液（（東レ社製
商品名;810）を一辺が49mmの正方形となるようにスクリ
ーン印刷し、150℃で１時間加熱乾燥した後、ポリイミ
ド膜表面をラビング処理して配向膜を形成した。Then, a thin film transistor, a pixel electrode 3, a scanning line, and a signal line 2 are formed on one surface of a lower glass substrate 1 having a side of 50 mm, and a polyimide solution (trade name of Toray Co .; 810) is formed on the lower surface of the lower glass substrate 1 to form a square having a side of 49 mm. Screen print to be 15
After heating and drying at 0 ° C. for 1 hour, the surface of the polyimide film was rubbed to form an alignment film. Further, a color filter 6 separated by a black matrix 5 is formed on one surface of an upper glass substrate 4 having a side of 50 mm, and a transparent electrode 7 made of ITO is coated thereon, and a polyimide solution ((trade name of Toray Co., Ltd. 810) was screen-printed so as to form a square having a side of 49 mm, heated and dried at 150 ° C. for 1 hour, and the polyimide film surface was rubbed to form an alignment film.
次いで、前記上部ガラス基板４の配向膜上に予め調製
した下記第３表に示す組成の16種のシール剤を夫々コー
ナ部に液晶注入口となる幅5mmの穴が開孔された一辺が4
8mm、幅1.5mmの正方形の枠状にスクリーン印刷した後、
90℃、80分間の加熱、乾燥した。一方、下部ガラス基板
１の配向膜上に直径7mmのガラス繊維（スペーサ）を分
散させた。Then, 16 kinds of sealing agents having the compositions shown in Table 3 below were prepared on the alignment film of the upper glass substrate 4 at the corners thereof, and a hole having a width of 5 mm serving as a liquid crystal injection port was formed on each side.
After screen-printing on a square frame with a width of 8 mm and a width of 1.5 mm,
It was heated at 90 ° C. for 80 minutes and dried. On the other hand, glass fibers (spacers) having a diameter of 7 mm were dispersed on the alignment film of the lower glass substrate 1.
次いで、前記ガラス基板１、４をそれらの配向膜側に
形成した枠状シール剤及びスペーサが当接するように貼
り合わせた後、通常の液晶セル用封着治具を用いてガラ
ス板１、４間に20kg/cm2の圧力を加えながら下記第３表
に示す条件で第１段熱処理を行なって枠状シール剤中の
主剤を僅かに硬化させ、更に同第３表に示す条件で第２
段熱処理を行なうことにより配向膜間にシール部８を形
成した。つづいて、ネマチック型の液晶９をシール部８
の穴から配向膜及びシール部８で囲繞された空間内に注
入し、シール部８の穴をUV硬化型接着剤で封口し、更に
ガラス基板１、４の外側表面に偏向板10a、10bを張付け
て16種のカラー液晶セルを製造した（第１図図示）。Next, the glass substrates 1 and 4 are attached so that the frame-shaped sealing agent and the spacer formed on the alignment film side thereof come into contact with each other, and then the glass plates 1 and 4 are formed by using an ordinary liquid crystal cell sealing jig. While applying a pressure of 20 kg / cm 2 between them, the first stage heat treatment was performed under the conditions shown in Table 3 below to slightly cure the main component in the frame-shaped sealant, and then under the conditions shown in Table 3
By performing the step heat treatment, the seal portion 8 was formed between the alignment films. Next, the nematic liquid crystal 9 is attached to the seal portion 8
Is injected into the space surrounded by the alignment film and the seal portion 8 from the hole of the above, the hole of the seal portion 8 is sealed with a UV curable adhesive, and the deflection plates 10a and 10b are further attached to the outer surfaces of the glass substrates 1 and 4. 16 kinds of color liquid crystal cells were manufactured by pasting (shown in FIG. 1).
比較例５〜20 主剤、第１硬化剤及び添加剤を下記第５表に示す割合
で配合、混合した16種の液晶セル用シール剤を用いた以
外、実施例17と同様な方法によりカラー液晶セルを製造
した。但し、ガラス板間の枠状シール剤は140℃、１時
間の条件にて１回の熱処理で硬化させた。Comparative Examples 5 to 20 A color liquid crystal was prepared in the same manner as in Example 17, except that 16 kinds of sealants for liquid crystal cells were used, in which the main component, the first curing agent and the additives were mixed and mixed in the proportions shown in Table 5 below. A cell was manufactured. However, the frame-shaped sealant between the glass plates was cured by one heat treatment under the condition of 140 ° C. for 1 hour.
比較例21〜26 主剤、第２硬化剤及び添加剤を下記第７表に示す割合
で配合、混合した６種の液晶セル用シール剤を用いた以
外、実施例17と同様な方法によりカラー液晶セルを製造
した。但し、シール剤は180℃、１時間の条件にて１回
の熱処理で硬化させた。Comparative Examples 21 to 26 Color liquid crystals were prepared in the same manner as in Example 17 except that 6 kinds of liquid crystal cell sealing materials were used, which were prepared by mixing and mixing the main component, the second curing agent and the additives in the proportions shown in Table 7 below. A cell was manufactured. However, the sealant was cured by one heat treatment under the condition of 180 ° C. for 1 hour.
しかして、本実施例17〜32、比較例５〜26のカラー液
晶セルについて温度100℃の環境下で100時間放置し、放
置後のリーク電流の増加、しきい値電圧（Vth）の増加
及び配向乱れの増加を測定した。また、各液晶セルにつ
いて温度80℃、湿度95％の環境下で100時間放置し、放
置後のリーク電流の増加、しきい値電圧（Vth）の増加
及び配向乱れの増加を測定した。更に、各液晶セルにお
けるセルギャップ及びシール部からのシール剤の滲み出
し長さをシール部に沿って見られる配向乱れ領域のシー
ル部縁からの幅として測定した。これら実施例17〜32の
結果を下記第４表、比較例５〜20の結果を下記第６表
に、比較例21〜26の結果を下記第８表に夫々に示した。Then, the color liquid crystal cells of Examples 17 to 32 and Comparative Examples 5 to 26 were allowed to stand for 100 hours in an environment of a temperature of 100 ° C. to increase the leak current after standing and increase the threshold voltage (Vth). The increase in orientation disorder was measured. In addition, each liquid crystal cell was allowed to stand for 100 hours in an environment of a temperature of 80 ° C. and a humidity of 95%, and an increase in leak current, an increase in threshold voltage (Vth) and an increase in alignment disorder after the standing were measured. Furthermore, the cell gap in each liquid crystal cell and the length of the sealant seeping out from the seal portion were measured as the width from the edge of the seal portion of the alignment disorder region seen along the seal portion. The results of Examples 17 to 32 are shown in Table 4 below, the results of Comparative Examples 5 to 20 are shown in Table 6 below, and the results of Comparative Examples 21 to 26 are shown in Table 8 below.
上記第４表、第６表及び第８表から明らかな如く主剤
に第１、第２の硬化剤を配合した液晶セル用シール剤を
用いて製造された液晶セル（実施例17〜32）は耐熱環境
下及び耐湿環境下においても優れた特性を有することが
わかる。しかも、セルギャップも狙値である6.5μｍ±
0.5μｍの範囲にあり、かつシール剤の滲み出し長さも1
00μｍと液晶への悪影響のある範囲内に止めることがで
きることがわかる。これに対し、主剤に第１の硬化剤の
みを配合（添加剤は同様に配合）した液晶セル用シール
剤を用いて製造された液晶セル（実施例５〜20）は耐熱
環境下及び耐湿環境下においても優れた特性を有し、か
つシール剤の滲み込み長さも液晶への悪影響のない範囲
内に止めることができるものの、セルギャップが狙値で
ある6.5μｍ±0.5μｍより著しく厚くなることがわか
る。また、主剤に第２の硬化剤のみを配合（添加剤は同
様に配合）した液晶セル用シール剤を用いて製造された
液晶セル（実施例21〜26）はセルギャップが狙値である
6.5μｍ±0.5μｍの範囲内になるものの、耐熱テスト及
び耐湿テストでリーク電流、しきい値電圧が増加し、か
つシール剤の滲み込み長さが長くなって多数の配向乱れ
が生じることがわかる。 As is clear from Tables 4, 6, and 8 above, the liquid crystal cells (Examples 17 to 32) produced by using the sealant for liquid crystal cells in which the first and second curing agents are mixed in the main component are It can be seen that it has excellent properties even in a heat resistant environment and a moisture resistant environment. Moreover, the cell gap is 6.5 μm ± which is the target value.
It is in the range of 0.5 μm, and the exudation length of the sealant is 1
It can be seen that it can be stopped within the range of 00 μm, which has a bad influence on the liquid crystal. On the other hand, the liquid crystal cells (Examples 5 to 20) manufactured by using the sealant for liquid crystal cells in which only the first curing agent is mixed in the main component (additives are mixed in the same manner) are used in a heat resistant environment and a moisture resistant environment. It also has excellent properties below, and the permeation length of the sealant can be stopped within the range that does not adversely affect the liquid crystal, but the cell gap must be significantly thicker than the target value of 6.5 μm ± 0.5 μm. I understand. Further, in the liquid crystal cells (Examples 21 to 26) manufactured by using the sealant for a liquid crystal cell in which only the second curing agent is mixed in the main component (additives are similarly mixed), the cell gap is the target value.
Although it is within the range of 6.5 μm ± 0.5 μm, it is found that the leak current and the threshold voltage increase in the heat resistance test and the humidity resistance test, and the permeation length of the sealant becomes long, resulting in a large number of alignment disorder. .
一方、主剤に第２の硬化剤のみを配合（添加剤は同様
に配合）した液晶セル用シール剤を用いて製造された比
較例21の液晶セル及び主剤に第１、第２の硬化剤を配合
した液晶セル用シール剤を用いて製造された実施例17の
液晶セルについて、シール部の一部を顕微鏡写真により
撮影した。その結果、写真を模式的に示した第２図、第
３図の模式図を得た。この第２図から明らかなように、
比較例21の液晶セルでは熱処理により正常に硬化された
シール部11の内部側に未硬化シール剤の滲み出し部分12
が存在することが観察された。これに対し、実施例17の
液晶セルでは第３図に示すように第１段、第２段の熱処
理加熱により正常に硬化されたシール部11のみしか観察
されず、内部側への未硬化シール剤の滲み出しは皆無で
あった。なお、第２図に対応する顕微鏡写真（写真１）
及び第３図に対応する顕微鏡写真（写真２）を夫々参考
資料として提出します。On the other hand, the first and second curing agents were added to the liquid crystal cell of Comparative Example 21 and the main agent, which were produced by using the sealant for a liquid crystal cell in which only the second curing agent was added to the main agent (additives were similarly added). Regarding the liquid crystal cell of Example 17 produced using the compounded liquid crystal cell sealing agent, a part of the seal portion was photographed by a micrograph. As a result, the schematic diagrams of FIGS. 2 and 3 schematically showing the photographs were obtained. As is clear from FIG. 2,
In the liquid crystal cell of Comparative Example 21, the bleeding portion 12 of the uncured sealant was formed inside the seal portion 11 that was normally cured by heat treatment.
Was observed to be present. On the other hand, in the liquid crystal cell of Example 17, as shown in FIG. 3, only the seal portion 11 which was normally cured by the heat treatment and heating of the first and second stages was observed, and the uncured seal on the inner side was observed. There was no exudation of the agent. In addition, the micrograph corresponding to Fig. 2 (Photo 1)
Also, the micrographs (Photo 2) corresponding to Fig. 3 will be submitted as reference materials.
［発明の効果］ 以上詳述したように、本発明によれば耐熱環境下およ
び耐湿環境下でのリーク電流、しきい値電圧の増加がな
く、かつ配向乱れがなく、更に所定のセルギャップを有
する高信頼性で高性能の液晶セルの製造方法を提供でき
る。[Effects of the Invention] As described in detail above, according to the present invention, there is no increase in leak current and threshold voltage in a heat-resistant environment and a humidity-resistant environment, there is no orientation disorder, and a predetermined cell gap is set. A method for manufacturing a liquid crystal cell having high reliability and high performance can be provided.
第１図は一般的のカラー液晶セルを示す断面図、第２図
は比較例21の液晶セルにおけるシール部の一部を撮影し
た顕微鏡写真の模式図、第３図は実施例17の液晶セルに
おけるシール部の一部を撮影した顕微鏡写真の模式図で
ある。 １……下部ガラス基板、３……画素電極、４……上部ガ
ラス基板、６……カラーフィルタ、７……透明電極、８
……シール部、９……液晶、11……硬化したシール部、
12……未硬化シール剤の滲み出し部分。FIG. 1 is a cross-sectional view showing a general color liquid crystal cell, FIG. 2 is a schematic view of a microscope photograph of a part of a seal portion in a liquid crystal cell of Comparative Example 21, and FIG. 3 is a liquid crystal cell of Example 17. FIG. 3 is a schematic diagram of a micrograph of a part of the seal portion in FIG. 1 ... Lower glass substrate, 3 ... Pixel electrode, 4 ... Upper glass substrate, 6 ... Color filter, 7 ... Transparent electrode, 8
…… Seal part, 9 …… Liquid crystal, 11 …… Cured seal part,
12 …… Unbleached portion of uncured sealant.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 春原 一之 神奈川県川崎市幸区小向東芝町１番地 株式会社東芝総合研究所内 (72)発明者 宮村 雅隆 神奈川県川崎市幸区小向東芝町１番地 株式会社東芝総合研究所内 (72)発明者 岡本 正義 神奈川県川崎市幸区小向東芝町１番地 株式会社東芝総合研究所内 (72)発明者 武内 文雄 兵庫県姫路市余部区上余部50番地 株式 会社東芝姫路工場内 (72)発明者 山田 久雄 兵庫県姫路市余部区上余部50番地 株式 会社東芝姫路工場内 (72)発明者 酒井 啓次 兵庫県姫路市余部区上余部50番地 株式 会社東芝姫路工場内 (72)発明者 相川 哲男 兵庫県姫路市余部区上余部50番地 株式 会社東芝姫路工場内 (72)発明者 昆 隆夫 兵庫県姫路市余部区上余部50番地 株式 会社東芝姫路工場内 (72)発明者 田中 康晴 神奈川県横浜市磯子区新杉田町８番地 株式会社東芝横浜事業所内 (72)発明者 関川 一枝 神奈川県横浜市磯子区新杉田町８番地 株式会社東芝横浜事業所内 (56)参考文献 特開 昭59−152420（ＪＰ，Ａ) 特開 昭62−141519（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuyuki Sunohara 1 Komukai Toshiba Town, Saiwai-ku, Kawasaki City, Kanagawa Prefecture Toshiba Research Institute, Inc. (72) Inventor Masataka Miyamura Komukai Toshiba Town, Kawasaki City, Kanagawa Prefecture No. 1 in Toshiba Research Institute Co., Ltd. (72) Inventor Masayoshi Okamoto No. 1 Komukai Toshiba-cho, Sachi-ku, Kawasaki-shi, Kanagawa Inside Toshiba Research Institute Co., Ltd. (72) Fumio Takeuchi 50 No. Kamamibe, Himeji-shi, Hyogo Stock company Toshiba Himeji factory (72) Inventor Hisao Yamada 50 Kamimabe, Himeji city, Himeji city, Hyogo prefecture Himeji factory Toshiba (72) Inventor Keiji Sakai, 50 Himeji city, Himeji city, Hyogo prefecture Himeji, Toshiba corporation In the factory (72) Inventor Tetsuo Aikawa 50 Kamamibe, Yobu ward, Himeji City, Hyogo Prefecture Toshiba Corporation Himeji Factory (72) Inventor Takao Kun 50 Kamamiyobe, Yobu Ward, Himeji City, Hyogo Prefecture (72) Incorporated Toshiba Himeji Factory (72) Inventor Yasuharu Tanaka 8 Shinsita Town, Isogo Ward, Yokohama City, Kanagawa Prefecture Yokohama Works Co., Ltd. (72) Ichie Sekigawa Yokohama City, Kanagawa Prefecture 8 Shinsita-cho, Isogo-ku, Toshiba Corporation Yokohama Works (56) References JP 59-152420 (JP, A) JP 62-141519 (JP, A)
Claims (1)
たシール部によって囲繞された空間内に液晶を充填した
構造の液晶セルの製造において、 主剤と、この主剤を硬化させる第１の硬化剤と、前記主
剤を前記第１の硬化剤より高い温度で硬化させる第２の
硬化剤とを主成分とするシール剤を前記各基板間に配す
る工程と、 加熱処理を施して前記２枚の基板間に配されたシール剤
を前記第１の硬化剤により硬化し、さらに加熱温度を上
昇させて前記シール剤を前記第２の硬化剤により完全硬
化させることにより前記２枚の基板間に所定厚さのシー
ル部を形成する工程と、 前記２枚の基板およびこれら基板間に設けられたシール
部によって囲繞された空間内に液晶を注入した後、封止
する工程と を具備したことを特徴とする液晶セルの製造方法。1. In a liquid crystal cell having a structure in which a liquid crystal is filled in a space surrounded by two substrates and a seal portion provided between the substrates, a main component and a first curing for curing the main component. Of a sealant containing, as a main component, a curing agent and a second curing agent that cures the main agent at a higher temperature than the first curing agent, and heat treatment is applied to the two sheets. Between the two substrates by curing the sealant disposed between the substrates with the first curing agent and further raising the heating temperature to completely cure the sealant with the second curing agent. A step of forming a seal portion having a predetermined thickness, and a step of injecting liquid crystal into a space surrounded by the two substrates and a seal portion provided between the substrates and then sealing the liquid crystal. Characteristic liquid crystal cell manufacturing method Law.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63042517A JP2692833B2 (en) | 1988-02-25 | 1988-02-25 | Liquid crystal cell manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63042517A JP2692833B2 (en) | 1988-02-25 | 1988-02-25 | Liquid crystal cell manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01217320A JPH01217320A (en) | 1989-08-30 |
| JP2692833B2 true JP2692833B2 (en) | 1997-12-17 |
Family
ID=12638269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63042517A Expired - Fee Related JP2692833B2 (en) | 1988-02-25 | 1988-02-25 | Liquid crystal cell manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2692833B2 (en) |
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-
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Also Published As
| Publication number | Publication date |
|---|---|
| JPH01217320A (en) | 1989-08-30 |
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