JPH10123537A - Liquid crystal display element and its production - Google Patents
Liquid crystal display element and its productionInfo
- Publication number
- JPH10123537A JPH10123537A JP27197396A JP27197396A JPH10123537A JP H10123537 A JPH10123537 A JP H10123537A JP 27197396 A JP27197396 A JP 27197396A JP 27197396 A JP27197396 A JP 27197396A JP H10123537 A JPH10123537 A JP H10123537A
- Authority
- JP
- Japan
- Prior art keywords
- seal
- liquid crystal
- crystal display
- display element
- elastic material
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、パーソナルコンピ
ュータやＴＶ受像機等の画像表示パネルとして用いられ
る液晶表示素子とその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display element used as an image display panel of a personal computer, a TV set, and the like, and a method of manufacturing the same.
【０００２】[0002]
【従来の技術】液晶表示素子の従来例を図９〜図１１に
示す。2. Description of the Related Art Conventional examples of liquid crystal display elements are shown in FIGS.
【０００３】一般的な液晶表示素子の構造は図９に示す
ように、向かい合わせて配置した２枚の基板１、２間を
一定のギャップに保ちながらシール３と液晶４が配置さ
れる。液晶４をシール３内に配置する方法として、一般
的には、シール３をアレー基板１の上にスクリーン印刷
又はディスペンサによる印刷により所定の形状に塗布
し、アレー基板１とカラーフィルター基板２とをシール
３を介して重ね合わせ紫外線及び又は熱硬化により液晶
４の注入スペースを形成しその後液晶注入封口する方法
と、アレー基板にシール塗布後シール硬化前に液晶を滴
下しその後直ちにカラーフィルター基板を重ね合わせ紫
外線及び又は熱硬化によりパネルを完成させる液晶滴下
工法がある。後者の工法は液晶歩留り・工程数の削減の
点で前者に比べ優れている。As shown in FIG. 9, the structure of a general liquid crystal display element is such that a seal 3 and a liquid crystal 4 are arranged while maintaining a constant gap between two substrates 1 and 2 arranged opposite to each other. As a method of disposing the liquid crystal 4 in the seal 3, generally, the seal 3 is applied on the array substrate 1 in a predetermined shape by screen printing or printing by a dispenser, and the array substrate 1 and the color filter substrate 2 are combined. A method of forming a space for injecting liquid crystal 4 by ultraviolet light and / or thermosetting through a seal 3 and then injecting and sealing the liquid crystal; a method of applying a seal to an array substrate; There is a liquid crystal dropping method for completing a panel by combined ultraviolet light and / or heat curing. The latter method is superior to the former method in terms of liquid crystal yield and reduction in the number of steps.
【０００４】この、液晶滴下工法でのシール構造と工程
には次の２種類が代表的である。まず一つめのシール構
造と工程を示す。図１０（ａ）、（ｂ）に示すように、
１枚の基板１にＵＶ硬化シール３ａを塗布し、同じ基板
１のＵＶ硬化シール３ａの内側に液晶４ａを滴下させ
る。次に、図１０（ｃ）に示すように、もう一方の基板
２を貼り合わせ、最後にＵＶ硬化シール３ａを硬化す
る。この工法の場合、液晶４ａとの混合を避けるために
極力速く硬化させるためにＵＶ硬化シール３ａを用いた
１重構造シールである。なお、ＵＶ硬化シール３ａの代
わりに熱硬化シールを用いる方法もあるが、硬化時間が
遅いため、液晶との拡散混合が発生するため望ましくな
い。The following two types of seal structures and steps in the liquid crystal dropping method are typical. First, the first seal structure and steps will be described. As shown in FIGS. 10A and 10B,
The UV curable seal 3a is applied to one substrate 1, and the liquid crystal 4a is dropped on the same substrate 1 inside the UV curable seal 3a. Next, as shown in FIG. 10C, the other substrate 2 is bonded, and finally the UV curing seal 3a is cured. In the case of this method, a single-layer structure seal using a UV-curable seal 3a for curing as quickly as possible to avoid mixing with the liquid crystal 4a. There is a method using a thermosetting seal instead of the UV curing seal 3a, but it is not desirable because the curing time is long and diffusion mixing with liquid crystal occurs.
【０００５】次に二つめのシール構造と工程を示す。図
１１（ａ）、（ｂ）に示すように、１枚の基板１にＵＶ
硬化シール３ａの外側に熱硬化シール３ｂを用い２重構
造にし、液晶４ａを滴下させる。次に、図１１（ｃ）に
示すように、もう一方の基板２を貼り合わせ、ＵＶ硬化
シール３ａと熱硬化シール３ｂを硬化する。この工法の
場合、ＵＶ硬化シール３ａにより液晶４ａと熱硬化シー
ル３ｂとが接触するのを避ける２重構造シールとなって
おり、熱硬化シール３ｂにより全体の接着力を向上させ
ている。Next, a second sealing structure and steps will be described. As shown in FIGS. 11A and 11B, one substrate 1 has UV
A liquid crystal 4a is dropped by using a thermosetting seal 3b outside the cured seal 3a to form a double structure. Next, as shown in FIG. 11C, the other substrate 2 is bonded, and the UV curing seal 3a and the thermosetting seal 3b are cured. In the case of this method, the UV curing seal 3a forms a double structure seal that prevents the liquid crystal 4a from contacting the thermosetting seal 3b, and the thermosetting seal 3b improves the overall adhesive strength.
【０００６】また、液晶表示素子のシール塗布に関する
製造方法の従来例は図１２（ａ）、（ｂ）に示すよう
に、基板１の１枚にスクリーン印刷版５またはディスペ
ンサ６を用いてシール剤３を塗布している。[0006] Further, in a conventional example of a manufacturing method relating to seal application of a liquid crystal display element, as shown in FIGS. 12 (a) and 12 (b), a sealant is formed by using a screen printing plate 5 or a dispenser 6 on one substrate 1. 3 is applied.
【０００７】[0007]
【発明が解決しようとする課題】すなわち、１重構造シ
ールの場合、ＵＶ硬化シール３ａは熱硬化シール３ｂに
比べて硬化は早いため液晶との拡散混合は小さいが接着
力が弱くＵＶ硬化シール３ａの部分剃離によりＵＶ硬化
シール３ａ近傍での画像不良が発生する問題も生じた。
特に、後工程（割断等）での加工時の基板１、２変形に
よるシール剃離が生じるなど接着力の向上が課題となっ
ている。That is, in the case of a single-structured seal, the UV-curable seal 3a cures faster than the thermosetting seal 3b, so that diffusion mixing with the liquid crystal is small, but the adhesive strength is weak and the UV-curable seal 3a is weak. There was also a problem that image defects occurred near the UV-curable seal 3a due to the partial shaving.
In particular, improvement of the adhesive strength has been a problem, for example, in that the seal is peeled off due to deformation of the substrates 1 and 2 at the time of processing in a subsequent step (cutting or the like).
【０００８】一方、２重構造シールの場合、昨今の高開
口率が望まれる中で、ＵＶ硬化シール３ａの外側に熱硬
化シール３ｂを塗布するので、シール幅が広くなり有効
視野面積が狭くなるという不具合が生じてきた。On the other hand, in the case of a double-structured seal, a thermosetting seal 3b is applied to the outside of the UV-curable seal 3a under the recent demand for a high aperture ratio, so that the seal width is widened and the effective viewing area is narrowed. The problem has occurred.
【０００９】さらに、シール塗布工法について、狭くフ
ァインなシール印刷が出来ればいいと考えられるが、従
来のスクリーン印刷版５やディスペンサ６を用いたシー
ル塗布では、線幅精度１０μｍ，厚さ精度１μｍ以下の
シール幅を確保して塗布することはできなかったため、
画面開口率を上げることができなかった。[0009] Further, it is considered that a narrow and fine seal printing can be performed with respect to the seal coating method. Because it was not possible to secure the seal width and apply
The screen aperture ratio could not be increased.
【００１０】本発明は、上記の問題点を解決し、接着力
が強く、しかも液晶汚染のない新しいシール構造とその
製造方法に関するものであり、シール剃離により画像ム
ラ不良をなくし、かつ、画面開口率を上げることができ
る液晶表示素子とその製造方法を提供するものである。The present invention solves the above-mentioned problems, and relates to a new seal structure having a strong adhesive force and free from liquid crystal contamination, and a method of manufacturing the same. An object of the present invention is to provide a liquid crystal display element capable of increasing the aperture ratio and a method for manufacturing the same.
【００１１】[0011]
【課題を解決するための手段】本願第１発明の液晶表示
素子は、上記の課題を解決するために、２枚の基板を貼
り合わせるシールが２重構造であり、内側が弾性体シー
ルであることを特徴とする。なお、内側の弾性体シール
は一方の基板とだけ接着し、他方の基板とは接触してい
るだけで接着固定はされないようにする。従って、加工
による力が作用してもシールの上下に力が作用しないの
で、シール剥離は少なくなる。また、内側が弾性体シー
ルであると、シールが容易に変形してガラスとの密閉性
が増し、液晶が外部に流れ出ることがなくなるので、外
側シールが液晶と混ざり合うことがなくなり、外側シー
ル剥がれや画像ムラ不良がなくなる。In order to solve the above-mentioned problems, the liquid crystal display element of the first invention of the present application has a double structure in which the two substrates are bonded together and the inside is an elastic seal. It is characterized by the following. The inner elastic seal is bonded only to one of the substrates, and is only in contact with the other substrate so as not to be bonded and fixed. Therefore, even if a force due to processing is applied, no force acts on the upper and lower portions of the seal, so that peeling of the seal is reduced. Also, if the inside is an elastic seal, the seal is easily deformed and the sealing with glass is increased, and the liquid crystal does not flow out, so that the outside seal does not mix with the liquid crystal and the outside seal peels off And image unevenness defects are eliminated.
【００１２】本願第２発明の液晶表示素子の製造方法
は、上記の課題を解決するために、シールを凹版オフセ
ット印刷にて塗布することを特徴とする。In order to solve the above-mentioned problems, a method of manufacturing a liquid crystal display device according to the second invention is characterized in that a seal is applied by intaglio offset printing.
【００１３】本願第２発明によれば、シールを凹版オフ
セット印刷にて塗布するので、シール幅が精度１０μｍ
を確保して２００μｍ以下の線幅で塗布することができ
るので、画面開口率を上げることができる。According to the second aspect of the present invention, the seal is applied by intaglio offset printing, so that the seal width has an accuracy of 10 μm.
Can be applied with a line width of 200 μm or less, so that the screen aperture ratio can be increased.
【００１４】具体的には、２枚の基板を貼り合わせるシ
ールが２重構造であり、内側が弾性体シールであること
を特徴とする液晶表示素子であり、内側シール上面の一
部が突起形状であることを特徴とする液晶表示素子であ
り、内側シールがＵＶ硬化及び又は熱硬化シールである
ことを特徴とする液晶表示素子であり、外側シールがＵ
Ｖ硬化及び又は熱硬化シールであることを特徴とする液
晶表示素子である。Specifically, the liquid crystal display element is characterized in that the seal for bonding the two substrates has a double structure, and the inside is an elastic seal. Wherein the inner seal is a UV-cured and / or thermo-cured seal, and the outer seal is a U-shaped seal.
The liquid crystal display element is a V-cured and / or thermosetting seal.
【００１５】また、液晶表示素子のシールが２重構造で
あり、内側が弾性体シールを有している液晶表示素子に
おいて、内側シールをＵＶ光照射にて硬化させその後に
外側シールを塗布し、その後液晶を滴下し相手基板を貼
り合わせることを特徴とする液晶表示素子の製造方法が
好ましく、外側シールがＵＶ硬化シールであることを特
徴とする液晶表示素子の製造方法も好ましく、２枚の基
板を貼り合わせるシールが２重構造を有している液晶表
示素子において、内側シールが全シール幅の２５％以下
の線幅であることを特徴とする液晶表示素子の製造方法
であり、２枚の基板を貼り合わせるシールが２重構造を
有している液晶表示素子において、内側シールを凹版オ
フセット印刷にて塗布することを特徴とする液晶表示素
子の製造方法である。Further, in a liquid crystal display element in which the seal of the liquid crystal display element has a double structure and the inner side has an elastic seal, the inner seal is cured by irradiation with UV light, and then the outer seal is applied. Thereafter, a method of manufacturing a liquid crystal display element is preferable, in which liquid crystal is dropped and a counterpart substrate is bonded, and a method of manufacturing a liquid crystal display element, in which the outer seal is a UV-curable seal, is also preferable. A method for manufacturing a liquid crystal display element, wherein the inner seal has a line width of 25% or less of the entire seal width in a liquid crystal display element having a double-layered seal. A method for manufacturing a liquid crystal display element, wherein an inner seal is applied by intaglio offset printing in a liquid crystal display element in which a seal for bonding substrates has a double structure. .
【００１６】[0016]
【発明の実施の形態】本願第１発明の液晶表示素子と製
造方法の一実施の形態を図１〜図４に基づいて説明す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a liquid crystal display device and a manufacturing method according to the first invention of the present application will be described with reference to FIGS.
【００１７】図１に液晶表示素子の一実施形態を示す。
向かい合わせて配置した２枚の基板７、８間を一定のギ
ャップに保ちながら内側の弾性体シール９と外側シール
１０と液晶１１が配置される。図２に示すように、内側
の弾性体シール９は一方の基板７とだけ接着し、他方の
基板８とは接触しているだけで接着固定はされないよう
にする。従って、後工程での加工による力が作用しても
内側の弾性体シール９の上側が従来より自由に動くこと
ができ、内側の弾性体シール９全体に作用する力が少な
くなるので、シール剥離は少なくなる。また、図３
（ａ）に示すように、内側の弾性体シール９は外側シー
ル１０よりも高くし、基板７、８貼り合わせ時の内側の
弾性体シール９の倒れ込みや、縮みにより密閉硬化も得
ることができる。（図３（ｂ）・図３（ｃ）参照）内側
の弾性体シール９は従来のシールのように接着力は不要
であり、液晶１１が漏れて外側シール１０に接触するこ
とさえなければよい。従って、材料が従来に比べてより
柔らかい弾性体であればよい。好ましくは、反力が接着
力の２０％以下となることが好ましい。ただし、液晶１
１と反応しにくい安定した材料である必要がある。FIG. 1 shows an embodiment of a liquid crystal display device.
The inner elastic seal 9, the outer seal 10, and the liquid crystal 11 are arranged while maintaining a constant gap between the two substrates 7 and 8 arranged to face each other. As shown in FIG. 2, the inner elastic body seal 9 is bonded only to one substrate 7 and is only in contact with the other substrate 8 so as not to be bonded and fixed. Therefore, even if a force due to processing in a later process acts, the upper side of the inner elastic seal 9 can move more freely than before, and the force acting on the entire inner elastic seal 9 decreases, so that the seal peeling is performed. Is less. FIG.
As shown in (a), the inner elastic seal 9 is made higher than the outer seal 10, so that the inner elastic seal 9 can collapse and shrink when the substrates 7 and 8 are bonded together, so that sealing and hardening can be obtained. . (See FIGS. 3B and 3C.) The inner elastic seal 9 does not require an adhesive force like a conventional seal, and it is sufficient if the liquid crystal 11 does not leak and come into contact with the outer seal 10. . Therefore, it is sufficient that the material is an elastic body that is softer than the conventional one. Preferably, the reaction force is 20% or less of the adhesive force. However, liquid crystal 1
It must be a stable material that does not easily react with 1.
【００１８】本実施の形態において、図４に示すよう
に、内側の弾性体シール９は変形しやすく密着性を増す
ために突起形状があってもよい。突起形状は、シールし
やすくしかも先に述べたように反力が小さくなる方が好
ましい。In the present embodiment, as shown in FIG. 4, the inner elastic body seal 9 may have a protruding shape in order to be easily deformed and to increase the adhesion. It is preferable that the protruding shape be easy to seal and that the reaction force is small as described above.
【００１９】（実施の形態１）図５（ａ）〜図５（ｃ）
に本願第１発明の液晶表示素子の製造方法の一実施の形
態を示す。図５（ａ）に示すように、まず基板７に内側
の弾性体シール９を塗布する。塗布方法は、実施例２で
述べる凹版オフセット印刷によるものが形状等の制御に
好ましいが、スクリーン印刷、精密描画、インクジェッ
ト等の塗布法を用いることもできる。(Embodiment 1) FIGS. 5 (a) to 5 (c)
FIG. 1 shows an embodiment of a method for manufacturing a liquid crystal display element according to the first invention of the present application. As shown in FIG. 5A, first, an inner elastic seal 9 is applied to a substrate 7. The application method is preferably intaglio offset printing described in Example 2 for controlling the shape and the like, but an application method such as screen printing, precision drawing, and ink jet may also be used.
【００２０】その後、ＵＶ光にて硬化させ、内側の弾性
体シールを得ることが出来る。弾性体シール９として
は、光により（特に紫外光）ラジカルを発生させる光開
始剤と（メタ）アクリロイルオキシキを有する（メタ）
アクリレート組成物又は、エポキシ基を有するビスフェ
ノール型及び又はノボラック系エポキシ及び又は四環式
エポキシからなる組成物に、光により開始剤としてカチ
オン又はアニオンを発生させ硬化できるシール剤であれ
ばよい。ウレタン系エーテル結合主鎖等を有する分子構
造のオリゴマーを有するものが好ましい。柔軟性を出せ
るシリコーン系の光接着剤も好ましい。その後に、弾性
体シール９の外周に外側シール１０（接着力の強いシー
ル）を図５（ｂ）に示すようにディスペンサで塗布し、
基板７の弾性シール内に液晶１１を滴下配置する。最後
に図５（ｃ）に示すように、基板８を貼り合わせ外側シ
ール１０をＵＶ光にて硬化させる。After that, the resin is cured by UV light to obtain an inner elastic seal. The elastic seal 9 has a photoinitiator that generates radicals (particularly, ultraviolet light) by light and a (meth) acryloyloxyki (meth).
A sealant which can generate and cure a cation or an anion as an initiator by light to an acrylate composition or a composition comprising a bisphenol-type and / or novolak-based epoxy and / or tetracyclic epoxy having an epoxy group may be used. Those having an oligomer having a molecular structure having a urethane ether bond main chain or the like are preferable. A silicone-based photo-adhesive capable of providing flexibility is also preferable. Thereafter, an outer seal 10 (a seal having a strong adhesive force) is applied to the outer periphery of the elastic seal 9 with a dispenser as shown in FIG.
The liquid crystal 11 is dropped and placed in the elastic seal of the substrate 7. Finally, as shown in FIG. 5C, the substrate 8 is bonded and the outer seal 10 is cured with UV light.
【００２１】本実施の形態において、外側シールはＵＶ
硬化性を用いる事が好ましいが、熱硬化とＵＶ光により
硬化してもよい。In the present embodiment, the outer seal is UV
Although it is preferable to use curability, it may be cured by thermal curing and UV light.
【００２２】この方法を用いることにより、液晶と未硬
化シール剤が液晶と混ざり合う心配もなく、点灯不良ゼ
ロという画期的なシールを得ることが出来た。By using this method, there was no fear that the liquid crystal and the uncured sealant were mixed with the liquid crystal, and an epoch-making seal with no defective lighting could be obtained.
【００２３】（実施の形態２）本願第２発明の液晶表示
素子の製造方法と製造装置の一実施の形態を図６（ａ）
〜図６（ｅ）に基づいて説明する。(Embodiment 2) FIG. 6A shows an embodiment of a method and an apparatus for manufacturing a liquid crystal display element according to the second invention of the present application.
This will be described with reference to FIG.
【００２４】図６（ａ）において、内側シールの形状に
あらかじめ版を設定溝深さの凹版を形成しておく、凹版
は、機械加工でも得ることが出来るが、ガラスの版にエ
ッチング加工して得ることが好ましい。凹版深さは、シ
ール剤の組成にもよるが、印刷厚さの約３倍の深さで作
成することが好ましい。そのようにして得られた凹版溝
に、内側の弾性体シールとなるべきシール１２をスキー
ジ１４によりスキージングし溝に埋める。ガラス版１３
はシール１２のパターンに合わせた凹版である。次に図
６（ｂ）・図６（ｃ）に示すように、転写ローラー１５
にシール１２を受理し、ローラー１５からシール１２を
基板７に転写する。基板７に液晶１１を配置し、もう一
方の基板８を貼り合わせ、その後、光及び又は熱により
硬化させる。In FIG. 6 (a), an intaglio having a preset groove depth is previously formed in the shape of the inner seal. The intaglio can be obtained by machining. It is preferable to obtain. The intaglio depth depends on the composition of the sealant, but is preferably formed at a depth of about three times the printing thickness. A seal 12 to be an inner elastic seal is squeezed by the squeegee 14 into the intaglio groove obtained in this manner, and is filled in the groove. Glass plate 13
Is an intaglio matching the pattern of the seal 12. Next, as shown in FIGS. 6B and 6C, the transfer roller 15
Then, the seal 12 is transferred from the roller 15 to the substrate 7. The liquid crystal 11 is arranged on the substrate 7 and the other substrate 8 is attached thereto, and then cured by light and / or heat.
【００２５】本実施の形態において、最も好ましいのは
実施例１のシールが２重シールの場合であるが、実施例
２のように、そのうちの１重のみに本製造方法を適用し
てもよい。このように、凹版形状を用いることにより、
シール形状を精密に形成することが出来た。In this embodiment, the most preferable case is that the seal of the first embodiment is a double seal. However, as in the second embodiment, the manufacturing method may be applied to only one of the seals. . Thus, by using the intaglio shape,
The seal shape could be formed precisely.
【００２６】（実施の形態３）また本実施の凹版オフセ
ット印刷形態において、図７・図８に示すように、シー
ル１２は液晶表示素子の周辺部に有り液晶と接触する所
から、転写ローラー１５はシール１２近傍のみに限定し
て印刷されることが好ましく、こうすることにより印刷
でも、液晶異常のない最もよいシール構造を得ることが
出来た。(Embodiment 3) In the intaglio offset printing mode of this embodiment, as shown in FIGS. 7 and 8, a seal 12 is provided at the periphery of the liquid crystal display element, and the transfer roller 15 is moved from the place where it comes into contact with the liquid crystal. Is preferably printed only in the vicinity of the seal 12, whereby the best seal structure with no liquid crystal abnormality could be obtained even in printing.
【００２７】[0027]
【発明の効果】２枚の基板を貼り合わせるシールが２重
構造であり、内側が弾性体シールを有している液晶表示
素子とする本発明は、液晶滴下工法の最大の課題であっ
たシール剤と液晶の混合による液晶劣化の心配なく組立
を行うことが出来るという点で工業的価値は大なるもの
がある。また、内側シール上面の一部が突起形状である
ことにより更に信頼性の高い液晶表示素子を提供するこ
とが出来る。According to the present invention, a liquid crystal display element having a double structure in which a seal for bonding two substrates and having an elastic seal on the inside is the biggest problem of the liquid crystal dropping method. There is a great industrial value in that assembly can be performed without worrying about deterioration of the liquid crystal due to the mixture of the agent and the liquid crystal. Further, since a part of the upper surface of the inner seal has a projection shape, a more reliable liquid crystal display element can be provided.
【００２８】内側シールは、そのため自由に選択するこ
とが出来、ＵＶ硬化及び又は熱硬化シールのどちらでも
よく、硬化後に液晶に接するという優れた液晶表示素子
の製造方法である。The inner seal can therefore be selected freely and may be either a UV-cured or a heat-cured seal, which is an excellent method of manufacturing a liquid crystal display element in which it comes into contact with the liquid crystal after curing.
【００２９】外側シールが接着力を形成するシール剤で
あり、ＵＶ硬化及び又は熱硬化シールの接着力が大きい
シール剤であればよいという品質の安定な液晶表示素子
を提供することが出来る。It is possible to provide a stable liquid crystal display element of a quality in which the outer seal is a sealant that forms an adhesive force, and a sealant having a large adhesive force of the UV-curable and / or thermosetting seal may be used.
【００３０】これらの液晶表示素子のシールが２重構造
であり、内側が弾性体シールを有している液晶表示素子
において、内側シールをＵＶ光照射にて硬化させその後
に外側シールを塗布し、その後液晶を滴下し相手基板を
貼り合わせることを特徴とする液晶表示素子の製造方法
が最適な工程削減を実現する。In a liquid crystal display device having a double structure in which the seal of these liquid crystal display devices has an elastic seal inside, the inner seal is cured by irradiation with UV light, and then the outer seal is applied. Thereafter, a method for manufacturing a liquid crystal display element, in which liquid crystal is dropped and a counterpart substrate is bonded, realizes an optimal process reduction.
【００３１】外側シールがＵＶ硬化シールである製造方
法が更に好ましい工程削減となる。２枚の基板を貼り合
わせるシールが２重構造を有している液晶表示素子にお
いて、内側シールが全シール幅の２５％以下の線幅であ
ることを特徴とする液晶表示素子の製造方法。A manufacturing method in which the outer seal is a UV-cured seal provides a further preferred step reduction. A method for manufacturing a liquid crystal display element, wherein the inner seal has a line width of 25% or less of the entire seal width in a liquid crystal display element in which a seal for bonding two substrates has a double structure.
【００３２】本願第１発明の液晶表示素子と製造方法に
よると、内側が弾性体シールであると、シールが容易に
変形してガラスとの密閉性が増し、液晶が外部に流れ出
ることがなくなるので、外側シールが液晶と混ざり合う
ことがなくなり、外側シール剥がれや画像ムラ不良がな
くなる。According to the liquid crystal display element and the manufacturing method of the first invention of the present application, if the inside is an elastic seal, the seal is easily deformed, the sealing with glass is increased, and the liquid crystal does not flow out. In addition, the outer seal does not mix with the liquid crystal, so that the outer seal does not peel off and image unevenness does not occur.
【００３３】本願第２発明の液晶表示素子の製造方法に
よれば、シールが±１０μｍのシール幅や±０．１μｍ
の高さ精度を確保して塗布することができるので、両面
開口率を上げることができるという画期的なものであ
り、工業的価値は大なるものがある。According to the liquid crystal display element manufacturing method of the second invention of the present application, the seal has a seal width of ± 10 μm or a seal width of ± 0.1 μm.
It is an epoch-making one that can increase the double-sided aperture ratio because the coating can be performed while ensuring the height accuracy of the resin, and the industrial value is great.
【図１】本発明の液晶表示素子の一実施形態の構成図FIG. 1 is a configuration diagram of an embodiment of a liquid crystal display device of the present invention.
【図２】本発明の液晶表示素子の一実施形態のシール接
着状態を示す図FIG. 2 is a diagram showing a state of sealing adhesion of one embodiment of the liquid crystal display element of the present invention.
【図３】本発明の液晶表示素子の一実施形態のシール形
状を示す図FIG. 3 is a view showing a seal shape of an embodiment of the liquid crystal display element of the present invention.
【図４】本発明の液晶表示素子の一実施形態のシール形
状を示す図FIG. 4 is a diagram showing a seal shape of an embodiment of the liquid crystal display element of the present invention.
【図５】本発明の液晶表示素子の一実施形態の製造工程
を示す図FIG. 5 is a view showing a manufacturing process of one embodiment of the liquid crystal display element of the present invention.
【図６】本発明の液晶表示素子の一実施形態の製造工程
を示す図FIG. 6 is a diagram showing a manufacturing process of one embodiment of the liquid crystal display device of the present invention.
【図７】本発明の液晶表示素子の一実施形態の製造装置
を示す図FIG. 7 is a diagram showing a manufacturing apparatus of one embodiment of the liquid crystal display element of the present invention.
【図８】本発明の液晶表示素子の一実施形態の製造装置
を示す図FIG. 8 is a diagram showing a manufacturing apparatus of one embodiment of the liquid crystal display element of the present invention.
【図９】液晶表示素子の構成を示す分解斜視図FIG. 9 is an exploded perspective view showing a configuration of a liquid crystal display element.
【図１０】従来例の液晶表示素子の製造工程を示す図FIG. 10 is a diagram showing a manufacturing process of a conventional liquid crystal display element.
【図１１】従来例の液晶表示素子の製造工程を示す図FIG. 11 is a diagram showing a manufacturing process of a conventional liquid crystal display element.
【図１２】従来例の液晶表示素子の製造装置を示す図FIG. 12 is a diagram showing a conventional liquid crystal display device manufacturing apparatus.
１、２ 基板 ３ シール ３ａ ＵＶ硬化シール ３ｂ 熱硬化シール ４、４ａ 液晶 ５ スクリーン印刷版 ６ ディスペンサ ７、８ 基板 ９ 内側の弾性体シール １０ 外側シール １１ 液晶 DESCRIPTION OF SYMBOLS 1, 2 Substrate 3 Seal 3a UV curing seal 3b Thermosetting seal 4, 4a Liquid crystal 5 Screen printing plate 6 Dispenser 7, 8 Substrate 9 Inner elastic seal 10 Outer seal 11 Liquid crystal
───────────────────────────────────────────────────── フロントページの続き (72)発明者 上田 修治 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shuji Ueda 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.
Claims (8)
部、外周部に形成された２重構造であり、前記内周部が
弾性体シールを有していることを特徴とする液晶表示素
子。1. A liquid crystal display wherein a seal for bonding two substrates has a double structure formed on an inner peripheral portion and an outer peripheral portion, and the inner peripheral portion has an elastic seal. element.
ことを特徴とする請求項１記載の液晶表示素子。2. The liquid crystal display device according to claim 1, wherein a part of the upper surface of the inner peripheral seal has a projection shape.
ールであることを特徴とする請求項１記載の液晶表示素
子。3. The liquid crystal display device according to claim 1, wherein the inner peripheral seal is a UV-cured and / or a thermo-cured seal.
ールであることを特徴とする請求項１記載の液晶表示素
子。4. The liquid crystal display device according to claim 1, wherein the outer peripheral seal is a UV-cured and / or a thermo-cured seal.
に形成された２重構造であり、内周部が弾性体シールを
有している液晶表示素子において、一方の基板に形成さ
れた内周シールをＵＶ光照射にて硬化させ、その後に外
周シールを塗布し、その後液晶を滴下し、他方の基板と
貼り合わせることを特徴とする液晶表示素子の製造方
法。5. A liquid crystal display device having a double structure in which a seal of a liquid crystal display element is formed on an inner peripheral portion and an outer peripheral portion, wherein the inner peripheral portion has an elastic seal, and is formed on one substrate. A method for manufacturing a liquid crystal display element, comprising: curing an inner peripheral seal by irradiating UV light, applying an outer peripheral seal thereafter, dropping liquid crystal, and bonding the liquid crystal to the other substrate.
を特徴とする請求項５記載の液晶表示素子の製造方法。6. The method according to claim 5, wherein the outer peripheral seal is a UV curing seal.
部、外周部に形成された２重構造を有している液晶表示
素子において、内周シールが全シール幅の２５％以下の
線幅であることを特徴とする液晶表示素子の製造方法。7. A liquid crystal display device having a double structure in which a seal for bonding two substrates is formed on an inner peripheral portion and an outer peripheral portion, wherein the inner peripheral seal has a line width of 25% or less of the entire seal width. A method for manufacturing a liquid crystal display element, characterized by having a width.
部、外周部に形成された２重構造を有している液晶表示
素子において、内側シールを凹版オフセット印刷にて塗
布することを特徴とする液晶表示素子の製造方法。8. A liquid crystal display device having a double structure in which a seal for bonding two substrates is formed on an inner peripheral portion and an outer peripheral portion, wherein the inner seal is applied by intaglio offset printing. Manufacturing method of a liquid crystal display element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27197396A JPH10123537A (en) | 1996-10-15 | 1996-10-15 | Liquid crystal display element and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27197396A JPH10123537A (en) | 1996-10-15 | 1996-10-15 | Liquid crystal display element and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10123537A true JPH10123537A (en) | 1998-05-15 |
Family
ID=17507389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27197396A Pending JPH10123537A (en) | 1996-10-15 | 1996-10-15 | Liquid crystal display element and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10123537A (en) |
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| US9030639B2 (en) | 2012-10-02 | 2015-05-12 | Japan Display Inc. | Liquid crystal display device |
| US9285614B2 (en) | 2003-04-24 | 2016-03-15 | Lg Display Co., Ltd. | Liquid crystal dispensing system and method of dispensing liquid crystal material using same |
| USRE46146E1 (en) | 2002-02-20 | 2016-09-13 | Lg Display Co., Ltd | Liquid crystal display device and method of manufacturing the same |
| US10054823B2 (en) | 2015-12-16 | 2018-08-21 | Japan Display Inc. | Liquid crystal display device |
| EP3264486A4 (en) * | 2016-04-19 | 2019-01-09 | Boe Technology Group Co. Ltd. | Frame sealing plastic member, display panel and display device |
| CN109471304A (en) * | 2018-12-20 | 2019-03-15 | 深圳市华星光电半导体显示技术有限公司 | A kind of liquid crystal display panel |
-
1996
- 1996-10-15 JP JP27197396A patent/JPH10123537A/en active Pending
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