JPH06160871A - Liquid crystal display panel and manufacturing method thereof - Google Patents
Liquid crystal display panel and manufacturing method thereofInfo
- Publication number
- JPH06160871A JPH06160871A JP4316824A JP31682492A JPH06160871A JP H06160871 A JPH06160871 A JP H06160871A JP 4316824 A JP4316824 A JP 4316824A JP 31682492 A JP31682492 A JP 31682492A JP H06160871 A JPH06160871 A JP H06160871A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- display panel
- crystal display
- viscous fluid
- substrates
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1341—Filling or closing of cells
- G02F1/13415—Drop filling process
Landscapes
- Liquid Crystal (AREA)
Abstract
(57)【要約】
【目的】 液晶表示パネルの信頼性および耐久性を向上
させ、簡単なプロセスで作製可能な液晶表示パネルの構
成およびそのパネルの製造方法を提供する。
【構成】 少なくとも電極を有する２枚の基板の周縁部
を２種以上のシール材にて接合し、両基板間に液晶を保
持した構成を具備した液晶表示パネルにおいて、シール
材のうち、少なくとも液晶と直接触れ、液晶を密閉する
シール材が、液晶に不活性な粘性流体１３であり、この
粘性流体１３の外側に基板を保持するための少なくとも
１種の接着性シール材１４が形成されていることを特徴
とする液晶表示パネル。
【効果】 液晶に接するシール材に液晶に不活性な粘性
流体１３を配置することにより、液晶表示パネル作製時
に、従来に比べ液晶特性の劣化を生じることがなく、液
晶表示パネルの表示特性の高信頼性化が図れる。また、
液晶を粘性流体１３でシールし密閉することにより、滴
下液晶量の制御マージンが広がる。
(57) [Summary] [Object] To provide a structure of a liquid crystal display panel which can improve the reliability and durability of the liquid crystal display panel and can be manufactured by a simple process, and a manufacturing method of the panel. In a liquid crystal display panel having a structure in which liquid crystal is held between two substrates, the peripheral portions of at least two substrates having electrodes are joined by two or more kinds of sealing materials, and at least the liquid crystal among the sealing materials is used. The sealing material that directly contacts with and seals the liquid crystal is a viscous fluid 13 inert to the liquid crystal, and at least one adhesive sealing material 14 for holding the substrate is formed outside the viscous fluid 13. A liquid crystal display panel characterized in that By arranging the viscous fluid 13 inert to the liquid crystal in the sealing material in contact with the liquid crystal, the liquid crystal characteristic is not deteriorated compared with the conventional case when the liquid crystal display panel is manufactured, and the display characteristic of the liquid crystal display panel is high. Reliability can be improved. Also,
By sealing and sealing the liquid crystal with the viscous fluid 13, the control margin of the amount of dropped liquid crystal is expanded.
Description
【０００１】[0001]
【産業上の利用分野】本発明はＯＡ、映像用の表示装置
の中で、薄型軽量でしかも低消費電力であることから、
ポケットテレビ、各種計器、ノートパソコン用ディスプ
レイ等に広く使用されている液晶表示パネルおよびその
製造方法に関する。BACKGROUND OF THE INVENTION The present invention is thin and lightweight and has low power consumption among OA and image display devices.
The present invention relates to a liquid crystal display panel that is widely used in pocket televisions, various instruments, displays for notebook computers, etc., and a manufacturing method thereof.
【０００２】[0002]
【従来の技術】液晶表示パネルは、液晶を数μｍ〜１０
μｍの間隔を持つように２枚の電極基板板ではさみ、電
極基板の縁内周を有機樹脂でシールした構造をしてい
る。このシール材には、熱硬化型樹脂または光硬化型樹
脂がそれぞれ信頼性と作業性の点から使用されている。2. Description of the Related Art A liquid crystal display panel has a liquid crystal of several μm to 10 μm.
The structure is such that two electrode substrate plates are sandwiched so as to have an interval of μm, and the inner periphery of the edge of the electrode substrate is sealed with an organic resin. A thermosetting resin or a photocurable resin is used as the sealing material in terms of reliability and workability.
【０００３】そして、液晶表示パネルの製造法には一般
的に、図３に工程を示すように、（ａ）工程で熱硬化型
あるいは光硬化型のシール材３２を一方の基板３１に注
入口を有するように印刷し、（ｂ）工程で２枚の電極基
板３１，３３を貼り合わせ、シール材３２を硬化させた
空パネルを形成し、（ｃ）工程において、真空中で液晶
３４を注入口から注入し、（ｄ）工程において、注入口
を封口樹脂３５で封じる真空注入法がある。しかし、こ
の方法による液晶表示パネルの製造は、あらかじめ作製
された空パネルの狭いギャップと液晶の粘性のため、液
晶の注入速度が遅く、パネルの大画面化にともない、注
入に非常に時間がかかり生産性が悪い。また、この方法
では液晶で濡れている注入口の封じる工程が必要であ
る。そこで、生産性の向上とプロセス簡略化のため、図
４に示すように、（ａ）工程で一方の基板４１に光硬化
型シール材４２をスクリーン印刷し（注入口は設けな
い）、（ｂ）工程で一定量の液晶４３を基板４１上に滴
下し、（ｃ）工程において、真空中で２枚の基板４１，
４４を貼り合わせ、（ｄ）工程において、表示部に光が
照射されないようにマスク４５で覆い、光照射によって
熱硬化型シール４２を硬化させる、滴下注入法が用いら
れている。Generally, in the method of manufacturing a liquid crystal display panel, as shown in FIG. 3, a thermosetting or photocurable sealing material 32 is injected into one substrate 31 in step (a). Printing is carried out, the two electrode substrates 31 and 33 are adhered to each other in the step (b) to form an empty panel in which the sealing material 32 is hardened, and the liquid crystal 34 is poured in vacuum in the step (c). There is a vacuum injection method of injecting from the inlet and sealing the inlet with the sealing resin 35 in the step (d). However, in the manufacture of a liquid crystal display panel by this method, the injection speed of the liquid crystal is slow due to the narrow gap of the empty panel prepared in advance and the viscosity of the liquid crystal, and the injection of the liquid crystal panel takes a long time as the panel becomes larger. Productivity is poor. Further, this method requires a step of sealing the injection port wet with the liquid crystal. Therefore, in order to improve productivity and simplify the process, as shown in FIG. 4, a photo-curable sealing material 42 is screen-printed on one substrate 41 in step (a) (no injection port is provided), and (b) is used. ) Step, a certain amount of liquid crystal 43 is dropped onto the substrate 41, and in step (c), the two substrates 41,
A drop injection method is used, in which 44 is attached, and in the step (d), the display unit is covered with a mask 45 so as not to be irradiated with light and the thermosetting seal 42 is cured by light irradiation.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら滴下注入
法においては、基板貼り合わせ時に液晶へ悪影響を与え
る未硬化のシール材が液晶に触れる問題がある。また、
光硬化型樹脂は、熱硬化型樹脂よりも基板を接着する力
が劣っており、ショックや長期の信頼性に問題がある。
接着力の強い光硬化型樹脂も開発されているが、接着性
の強い樹脂ほど液晶へ与える影響が大きく、以下のよう
な対策が必要となる。例えば液晶と触れる内側に、液晶
への影響が少ない光硬化型樹脂を使用し、その外側に接
着力の強い光硬化型樹脂を組み合わせた２重シール構造
を形成する方法や、特開平２−２２８６２６号公報にあ
るように、あらかじめ液晶への影響の少ない枠を形成し
た後にその外側に、接着性樹脂を配して基板を貼り合わ
せる方法が取られている。しかしいずれの場合も、シー
ル材と液晶は接触しているため、光硬化型シール材の硬
化に必要な光が、シール近傍の液晶にも必ず照射され、
液晶特性の劣化が生じる。また、後者の場合には、ギャ
ップ形成に必要な数μｍの高さ精度で液晶に不活性な枠
を均一に形成するといった非常に高い精度の工程が必要
である。However, the drop injection method has a problem that the uncured sealing material, which has a bad influence on the liquid crystal when the substrates are bonded, comes into contact with the liquid crystal. Also,
The photo-curing resin has a lower bonding force to the substrate than the thermosetting resin, and has a problem in shock and long-term reliability.
A photo-curing resin having a strong adhesive force has also been developed, but a resin having a stronger adhesive property has a greater effect on the liquid crystal, and the following measures are required. For example, a method of forming a double seal structure in which a photo-curing resin that has little influence on the liquid crystal is used on the inner side that is in contact with the liquid crystal and a photo-curing resin having a strong adhesive force is combined on the outer side thereof, and JP-A-2-228626 As disclosed in the publication, a method is adopted in which a frame having a small influence on the liquid crystal is formed in advance, and then an adhesive resin is arranged on the outer side of the frame to bond the substrates. However, in both cases, since the sealant and the liquid crystal are in contact with each other, the light necessary for curing the photo-curable sealant is always applied to the liquid crystal near the seal,
The liquid crystal characteristics deteriorate. In the latter case, a highly accurate process of uniformly forming an inactive frame in the liquid crystal with a height accuracy of several μm necessary for forming a gap is required.
【０００５】また、滴下注入法においては、滴下液晶量
の精密な制御も同時に必要となる。すなわち、両基板と
シール材とで形成されるセル体積より多量の液晶が滴下
された場合は、貼り合わせ後のパネルが所定のギャップ
より厚く形成されるか、過剰の液晶がシール材を突き破
り外部に流出する。また、セル体積よりの小量の液晶が
滴下された場合は、基板間隔がスペーサーにより保持さ
れほとんど収縮できないために、液晶の不足分は気泡と
なるので、液晶滴下量を精度よく制御しなければならな
い。In addition, in the drop injection method, precise control of the drop liquid crystal amount is also required. That is, when a larger amount of liquid crystal is dropped than the cell volume formed by both substrates and the sealing material, the panel after bonding is formed to be thicker than a predetermined gap, or excess liquid crystal breaks through the sealing material and is exposed to the outside. Spill to. Further, when a small amount of liquid crystal is dropped from the cell volume, the space between the substrates is held by the spacers and the liquid crystal can hardly be contracted, and the shortage of liquid crystal becomes bubbles, so the liquid crystal dropping amount must be controlled accurately. I won't.
【０００６】本発明は以上のような課題を解決するもの
であり、液晶表示パネルを生産性良く製造できる滴下注
入法において、シール材が液晶へ影響を与えず、パネル
の信頼性や耐久性が高く、滴下液晶量の制御マージンが
広がり、工程が簡略化されるなどの特徴をもった新規な
製造方法を提供するものであり、また、それにより全く
新しい構造を備えた液晶表示パネルを提供することを目
的とするものである。The present invention is intended to solve the above problems, and in the dropping injection method capable of manufacturing a liquid crystal display panel with high productivity, the sealing material does not affect the liquid crystal and the reliability and durability of the panel are improved. The present invention provides a new manufacturing method having features such as high cost, wide control margin of the amount of dropped liquid crystal, and simplification of the process, thereby providing a liquid crystal display panel having a completely new structure. That is the purpose.
【０００７】[0007]
【課題を解決するための手段】この目的を達成するため
に本発明の液晶表示パネルは、２枚の基板を２種以上の
シール材にて接合し、両基板間に液晶を保持した構成を
具備した液晶表示パネルにおいて、シール材のうち、少
なくとも液晶と直接触れるシール材が液晶に不活性な粘
性流体であり、この粘性流体の外側に基板を保持するた
めの接着性シール材が形成されている。In order to achieve this object, the liquid crystal display panel of the present invention has a structure in which two substrates are joined by two or more kinds of sealing materials and liquid crystal is held between the two substrates. In the provided liquid crystal display panel, at least the sealing material that is in direct contact with the liquid crystal is a viscous fluid that is inactive to the liquid crystal, and an adhesive sealing material for holding the substrate is formed outside the viscous fluid. There is.
【０００８】また、本発明の液晶表示パネルの製造方法
は、２枚の電極付き基板の少なくとも一方の電極付き基
板の周縁部に粘性流体を配置し、少なくとも一方の電極
付き基板上に液晶を一定量滴下し、他方の電極付き基板
と真空中で貼り合わせ、液晶を密閉し、その後、粘性流
体部の全外周に少なくとも１種の接着性樹脂を塗布し、
硬化させることにより、液晶表示パネルを製造する。Further, in the method for manufacturing a liquid crystal display panel of the present invention, a viscous fluid is disposed on the peripheral portion of at least one of the two electrode-attached substrates, and the liquid crystal is fixed on the at least one electrode-attached substrate. Dropwise, bond with the other electrode-attached substrate in a vacuum, seal the liquid crystal, and then apply at least one adhesive resin to the entire outer periphery of the viscous fluid part,
A liquid crystal display panel is manufactured by curing.
【０００９】[0009]
【作用】本発明の液晶表示パネルでは、液晶に触れるシ
ール材に耐薬品性があり、パネル作製前後に化学変化を
起こさない粘性流体を使用することにより、パネル作製
時に生じる液晶の特性劣化を抑えることができ、液晶パ
ネルの表示特性の信頼性が向上する。In the liquid crystal display panel of the present invention, the sealing material that comes into contact with the liquid crystal has a chemical resistance, and by using a viscous fluid that does not cause a chemical change before and after the panel is manufactured, the characteristic deterioration of the liquid crystal that occurs during the panel manufacturing is suppressed. Therefore, the reliability of the display characteristics of the liquid crystal panel is improved.
【００１０】そして、貼り合わせ時に滴下液晶を粘性流
体でシールするため、滴下液晶量の制御マージンが広が
り、化学的に安定な粘性流体で液晶をシールし密閉する
ことにより、外側を覆うシール材に接着性が強くプロセ
ス性のよい接着性樹脂が使用でき、シール材硬化プロセ
スが簡略化できる。また、液晶への影響が強い溶剤を含
む接着剤あるいは、シランカップリング材等の接着力を
増強する添加剤の使用が可能になり、パネルの耐久性が
向上する。Since the dropped liquid crystal is sealed with the viscous fluid at the time of bonding, the control margin for the amount of the dropped liquid crystal is widened, and the liquid crystal is sealed with the chemically stable viscous fluid and hermetically sealed to form a sealing material for covering the outside. An adhesive resin having strong adhesiveness and good processability can be used, and the sealing material curing process can be simplified. Further, it becomes possible to use an adhesive containing a solvent which has a strong influence on the liquid crystal or an additive such as a silane coupling material which enhances the adhesive strength, and the durability of the panel is improved.
【００１１】[0011]
【実施例】以下、本発明の実施例の液晶表示パネルおよ
びその製造方法について、図面を参照しながら説明す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A liquid crystal display panel and a method of manufacturing the same according to embodiments of the present invention will be described below with reference to the drawings.
【００１２】本発明の一実施例を図面を用いて説明す
る。図１において、本発明の一実施例の液晶表示パネル
の断面図が示されている。このパネルは、基本的にその
表面にＩＴＯ（酸化インジウム）等による透明電極ある
いは薄膜トランジスタ層（図示せず）が形成され、さら
にその上にポリイミド等の配向膜（図示せず）が形成さ
れ、表示部にスペーサー（図示せず）が分散されている
ことにより、一定間隔を保つように２枚の基板１２が貼
り合わされている。そしてこの基板間に、液晶１１が充
填され、液晶１１と接するシール材としてスペーサー
（図示せず）を含んだ粘性流体１３が配置され、この粘
性流体１３の外周に、２枚の基板１２からなる液晶パネ
ルを保持する接着性樹脂１４が塗布されたものである。An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, a cross-sectional view of a liquid crystal display panel according to an embodiment of the present invention is shown. This panel basically has a transparent electrode or a thin film transistor layer (not shown) made of ITO (indium oxide) or the like formed on the surface thereof, and an alignment film (not shown) made of polyimide or the like formed on the transparent electrode or the thin film transistor layer. Since the spacers (not shown) are dispersed in the portion, the two substrates 12 are bonded to each other so as to keep a constant distance. A liquid crystal 11 is filled between the substrates, and a viscous fluid 13 containing a spacer (not shown) as a sealing material that is in contact with the liquid crystal 11 is arranged. The viscous fluid 13 has two substrates 12 on the outer periphery thereof. The adhesive resin 14 for holding the liquid crystal panel is applied.
【００１３】図２は、本発明の液晶表示パネルの製造工
程の一例を示す概略図である。まず、（ａ）工程におい
て、透明電極および配向膜層（図示せず）が形成され、
配向処理がなされた基板２１に液晶パネル間のギャップ
を決定する径のスペーサー（図示せず）を含んだシリコ
ン系樹脂（ダウコーニング：高真空用グリース）である
粘性流体２２を表示部を囲むように塗布する。このシリ
コン系樹脂の粘性流体２２は、各種の薬品におかされ
ず、液晶に不活性である。そして、（ｂ）工程におい
て、塗布した粘性流体２２で囲まれた領域に、液晶が封
入される空間と同体積の液晶２４を、液体定量吐出装置
（ディスペンサー）２３を用いて滴下する。この時、液
晶材料にも基板間のギャップを形成するスペーサー（図
示せず）が含まれている。（ｃ），（ｄ）工程におい
て、０．１Ｔｏｒｒ程度の減圧槽２５の中で粘性流体２
２と液晶２４が塗布された基板２１と対向する基板２６
を貼り合わせる。そして、（ｅ）工程において、貼り合
わされた基板間に接着性樹脂として、常温硬化で、硬化
時間の短いシアノアクリレート系の接着剤（東亜合成化
学：アロンアルファ）２８を粘性流体２２の全外周にデ
ィスペンサー２７で塗布した。接着性樹脂が硬化した
（ｆ）工程において、本発明の液晶表示パネルが完成す
る。FIG. 2 is a schematic view showing an example of a manufacturing process of the liquid crystal display panel of the present invention. First, in step (a), a transparent electrode and an alignment film layer (not shown) are formed,
A viscous fluid 22, which is a silicon-based resin (Dow Corning: grease for high vacuum) containing a spacer (not shown) having a diameter that determines the gap between the liquid crystal panels, is applied to the substrate 21 that has been subjected to the alignment treatment so as to surround the display portion. Apply to. The silicon-based resin viscous fluid 22 is not exposed to various chemicals and is inert to the liquid crystal. Then, in the step (b), the liquid crystal 24 having the same volume as the space in which the liquid crystal is enclosed is dripped into the region surrounded by the applied viscous fluid 22 by using the liquid constant volume discharge device (dispenser) 23. At this time, the liquid crystal material also includes a spacer (not shown) that forms a gap between the substrates. In steps (c) and (d), the viscous fluid 2 is placed in the decompression tank 25 at a pressure of about 0.1 Torr.
2 and a substrate 26 facing the substrate 21 coated with the liquid crystal 24.
Stick together. Then, in step (e), a cyanoacrylate adhesive (Toagosei Kagaku: Aron Alpha) 28, which cures at room temperature and has a short curing time, is dispensed on the entire outer circumference of the viscous fluid 22 as an adhesive resin between the bonded substrates. It was applied at 27. In the step (f) in which the adhesive resin is cured, the liquid crystal display panel of the present invention is completed.
【００１４】上記構成の本実施例のパネルにおいては、
従来の工法で作製した場合に生じる。未硬化樹脂や光照
射の影響による、液晶とシール材界面での液晶の配向乱
れが発生しなかった。また、従来工法においては、液晶
の比抵抗および転移点といった物性値がパネル作製後に
低下するが、本実施例のパネルの製造では、液晶の物性
値変化が見られず、その際シールとして使用する粘性流
体は、応力に対して流動性を示すため、貼り合わせ工程
において、ギャップ形成が容易であり、しかも、従来工
法において、セル体積に対して±５％程度の精度で制御
されるべき滴下液晶量が、本実施例のパネルでは、±１
０％の滴下量制御でも、液晶の流出や気泡が発生しなか
った。また、従来工法では、シール樹脂の熱硬化あるい
は紫外線照射硬化等のプロセスが必要であるが、本実施
例の製造方法では、常温硬化接着剤を使用することによ
り硬化プロセスが簡略化された。In the panel of this embodiment having the above structure,
It occurs when manufactured by the conventional method. The alignment disorder of the liquid crystal did not occur at the interface between the liquid crystal and the sealing material due to the effects of the uncured resin and light irradiation. Further, in the conventional method, the physical properties such as the specific resistance and the transition point of the liquid crystal are lowered after the panel is manufactured, but in the manufacture of the panel of the present example, the change in the physical property of the liquid crystal is not observed, and it is used as a seal at that time. Since the viscous fluid exhibits fluidity with respect to stress, it is easy to form a gap in the bonding process, and moreover, in the conventional method, the dropped liquid crystal that should be controlled with an accuracy of about ± 5% with respect to the cell volume. The amount is ± 1 in the panel of this example.
Even when the dropping amount was controlled to 0%, liquid crystal outflow and bubbles did not occur. Further, in the conventional method, a process such as heat curing of the sealing resin or ultraviolet irradiation curing is required, but in the manufacturing method of the present embodiment, the curing process is simplified by using the room temperature curing adhesive.
【００１５】なお、粘性流体として本実施例では、シリ
コン系樹脂を使用したが、化学的にも物理的にも安定な
フッ素樹脂（テフロングリース等）も、液晶に悪影響を
与えず、同様な結果が得られた。In this embodiment, a silicone resin is used as the viscous fluid, but a chemically and physically stable fluororesin (Teflon grease or the like) does not adversely affect the liquid crystal and the same result is obtained. was gotten.
【００１６】また、接着性樹脂としては、プロセス性の
よいシアノアクリレート接着剤ではなく、接着力の強い
エポキシ系接着剤やフェノール系接着剤、または、液晶
への影響が強い溶媒およびシランカップリング剤等の接
着力補強剤を添加した接着剤の使用も可能であり、接着
性樹脂として、光硬化型接着剤を使用し、光硬化させる
場合でも、光硬化型樹脂と液晶の間に粘性流体が存在す
るために、液晶を完全にマスクすることができ、液晶に
照射光が照射されず液晶の劣化が生じない。As the adhesive resin, not a cyanoacrylate adhesive having good processability but an epoxy adhesive or a phenol adhesive having a strong adhesive force, or a solvent and a silane coupling agent having a strong influence on liquid crystals. It is also possible to use an adhesive with an adhesive strength enhancer added, such as a photo-curable adhesive as the adhesive resin, and even when photo-curing, a viscous fluid is generated between the photo-curable resin and the liquid crystal. Since it exists, the liquid crystal can be completely masked, and the liquid crystal is not irradiated with the irradiation light so that the liquid crystal is not deteriorated.
【００１７】さらに、粘度の低い接着性樹脂の方が、基
板間の狭ギャップによる毛管現象で、粘性流体の外周を
うまく覆うことができた。Further, the adhesive resin having a low viscosity was able to better cover the outer periphery of the viscous fluid by the capillary phenomenon due to the narrow gap between the substrates.
【００１８】[0018]
【発明の効果】以上のように、本発明の液晶表示パネル
およびその製造法によると、液晶に接するシール材に液
晶に不活性な粘性流体を配置することにより、液晶表示
パネル作製時に、従来に比べ液晶特性の劣化を生じるこ
とがなく、液晶表示パネルにおける表示特性の高信頼性
化が図れる。また、粘性流体で液晶をシールし密閉する
ために、滴下液晶量のマージンが広がる。そして、接着
力が強く硬化プロセスの簡単で液晶に有害な接着剤も液
晶パネルの接着剤として使用でき、耐久性の高いパネル
が簡単なプロセスで作製できる。As described above, according to the liquid crystal display panel and the method of manufacturing the same of the present invention, the viscous fluid inert to the liquid crystal is disposed in the sealing material in contact with the liquid crystal, so that the conventional liquid crystal display panel can be manufactured. In comparison, the liquid crystal characteristics are not deteriorated, and the display characteristics of the liquid crystal display panel can be made highly reliable. Further, since the liquid crystal is sealed and sealed with the viscous fluid, the margin of the dropped liquid crystal amount is widened. An adhesive having a strong adhesive force and a simple curing process, which is harmful to liquid crystals, can also be used as an adhesive for liquid crystal panels, and a highly durable panel can be manufactured by a simple process.
【図１】本発明の一実施例の液晶表示パネルを示す断面
図FIG. 1 is a sectional view showing a liquid crystal display panel of an embodiment of the present invention.
【図２】本発明の液晶表示パネル作製の一実施例を示す
工程概略図FIG. 2 is a process schematic diagram showing an example of manufacturing a liquid crystal display panel of the present invention.
【図３】真空注入法による従来の液晶パネル作製の工程
概略図FIG. 3 is a schematic view of a process of manufacturing a conventional liquid crystal panel by a vacuum injection method.
【図４】滴下注入法による従来の液晶パネル作製の工程
概略図FIG. 4 is a schematic view of the steps of manufacturing a conventional liquid crystal panel by a drop injection method.
１１ 液晶 １２ 基板 １３ 粘性流体 １４ 接着性樹脂 ２１ 基板 ２２ 粘性流体 ２３ ディスペンサー ２４ 液晶 ２５ 減圧槽 ２６ 対向基板 ２７ ディスペンサー ２８ 接着性樹脂 11 Liquid Crystal 12 Substrate 13 Viscous Fluid 14 Adhesive Resin 21 Substrate 22 Viscous Fluid 23 Dispenser 24 Liquid Crystal 25 Decompression Tank 26 Counter Substrate 27 Dispenser 28 Adhesive Resin
Claims (4)
以上のシール材にて接合し、両基板間に液晶を保持した
液晶表示パネルにおいて、 前記シール材のうち、少なくとも液晶と直接触れ、該液
晶を密閉するシール材が、前記液晶に不活性な粘性流体
であり、この粘性流体の外側に前記基板を保持するため
の接着性シール材が形成されていることを特徴とする液
晶表示パネル。1. A liquid crystal display panel in which the peripheral portions of two substrates having electrodes are joined by two or more kinds of sealing materials and liquid crystal is held between the two substrates. A liquid crystal characterized in that a sealing material for touching and sealing the liquid crystal is a viscous fluid inert to the liquid crystal, and an adhesive sealing material for holding the substrate is formed outside the viscous fluid. Display panel.
いはフッ素系樹脂を使用した請求項１記載の液晶表示パ
ネル。2. The liquid crystal display panel according to claim 1, wherein a silicone resin or a fluorine resin is used as the viscous fluid.
方の基板の周縁部に粘性流体を配置し、該基板上に液晶
を一定量滴下し、他方の電極付き基板と真空中で貼り合
わせ、その後、前記粘性流体部の外周に少なくとも１種
の接着性樹脂を塗布し、硬化させることを特徴とする請
求項１記載の液晶表示パネルの製造方法。3. A viscous fluid is placed on the peripheral portion of at least one of the two substrates having electrodes, a certain amount of liquid crystal is dropped on the substrate, and the other substrate with electrodes is bonded in vacuum. After that, at least one kind of adhesive resin is applied to the outer periphery of the viscous fluid part and cured, and the method for manufacturing a liquid crystal display panel according to claim 1.
ペーサーをあらかじめ混入した粘性流体を使用する請求
項３記載の液晶表示パネルの製造方法。4. The method of manufacturing a liquid crystal display panel according to claim 3, wherein a viscous fluid in which a spacer for determining a gap of the liquid crystal display panel is mixed in advance is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4316824A JPH06160871A (en) | 1992-11-26 | 1992-11-26 | Liquid crystal display panel and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4316824A JPH06160871A (en) | 1992-11-26 | 1992-11-26 | Liquid crystal display panel and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06160871A true JPH06160871A (en) | 1994-06-07 |
Family
ID=18081331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4316824A Pending JPH06160871A (en) | 1992-11-26 | 1992-11-26 | Liquid crystal display panel and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06160871A (en) |
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