JPH06194615A - Production of ferroelectric liquid crystal element - Google Patents
Production of ferroelectric liquid crystal elementInfo
- Publication number
- JPH06194615A JPH06194615A JP34371692A JP34371692A JPH06194615A JP H06194615 A JPH06194615 A JP H06194615A JP 34371692 A JP34371692 A JP 34371692A JP 34371692 A JP34371692 A JP 34371692A JP H06194615 A JPH06194615 A JP H06194615A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- substrates
- sealing material
- ferroelectric liquid
- substrate
- 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]
【産業上の利用分野】本発明は、透明電極が形成された
一対の基板間に強誘電性液晶を封入してなる強誘電性液
晶素子の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a ferroelectric liquid crystal device in which a ferroelectric liquid crystal is sealed between a pair of substrates having transparent electrodes formed thereon.
【０００２】[0002]
【従来の技術】強誘電性液晶素子は、透明電極が形成さ
れた一対の基板間に強誘電性液晶を封入してなるもの
で、その基板間に封入する強誘電性液晶としては、二つ
の方向の配向のメモリ性（配向状態の安定性）をもつ通
常の強誘電性液晶と、三つの方向の配向のメモリ性をも
つ反強誘電性と呼ばれる強誘電性液晶が用いられてい
る。2. Description of the Related Art A ferroelectric liquid crystal device is one in which a ferroelectric liquid crystal is sealed between a pair of substrates on which transparent electrodes are formed. A normal ferroelectric liquid crystal having a memory property of orientation (stability of orientation state) and a ferroelectric liquid crystal called anti-ferroelectric having a memory property of orientation in three directions are used.
【０００３】このような強誘電性液晶は、いずれもネマ
ティク液晶に比べてその粘度が高く、このため基板間の
隙間内へ注入する際に、通常の真空注入法により注入す
ることがほとんど困難である。Such ferroelectric liquid crystals have higher viscosities than nematic liquid crystals, and therefore, when they are injected into the gap between the substrates, it is almost difficult to inject them by a normal vacuum injection method. is there.
【０００４】このため、強誘電性液晶においては、図３
に示す方法により基板間への封入が行われている。すな
わち、液晶素子を構成する一対の基板ａ，ｂの一方、ま
たは両方に液晶封入領域を囲む枠状のシール材ｃを形成
し、一方の基板ａの上に強誘電性液晶ＬＣを滴下し、つ
いで両基板ａ，ｂを一定の圧力を加えながら重ね合わ
せ、前記シール材ｃにより両基板ａ，ｂを互いに接着さ
せる。なお、液晶ＬＣの滴下ならびに両基板ａ，ｂの接
着は、図示しない真空槽内で行われる。Therefore, in the case of the ferroelectric liquid crystal, FIG.
Encapsulation between the substrates is performed by the method shown in FIG. That is, a frame-shaped sealing material c that surrounds a liquid crystal encapsulation region is formed on one or both of a pair of substrates a and b forming a liquid crystal element, and the ferroelectric liquid crystal LC is dropped on one substrate a, Then, the two substrates a and b are overlapped with each other while applying a constant pressure, and the two substrates a and b are adhered to each other by the sealing material c. The liquid crystal LC is dropped and the substrates a and b are adhered to each other in a vacuum chamber (not shown).
【０００５】このような方法によれば、基板ａの上に滴
下された粘度の高い液晶ＬＣが両基板ａ，ｂの重ね合わ
せ時の圧力でシール材ｃで囲まれた液晶封入領域内に均
等に流れ拡がって封入される。According to such a method, the high-viscosity liquid crystal LC dropped on the substrate a is evenly distributed in the liquid crystal enclosing region surrounded by the seal material c by the pressure when the substrates a and b are superposed. It spreads and is enclosed.
【０００６】ところで通常の液晶素子においては、基板
間に球状のガラス粒や短く切断したグラスファイバ等か
らなる多数のスペーサが散布され、これらスペーサによ
り基板間の隙間のギャップが一定に保持される。By the way, in a normal liquid crystal element, a large number of spacers composed of spherical glass particles or short cut glass fibers are scattered between substrates, and these spacers keep the gap between the substrates constant.
【０００７】しかしながら、上述したような方法で基板
間に液晶を封入して液晶素子を製造する場合において
は、予め基板の上に多数のスペーサを一様な分布状態に
散布しておいても、液晶が基板の上で流れ拡がるときに
そのスペーサが移動して均等的な分布が崩れてしまう。However, in the case of manufacturing a liquid crystal element by enclosing the liquid crystal between the substrates by the method as described above, even if a large number of spacers are dispersed in a uniform distribution state on the substrate in advance, When the liquid crystal flows and spreads on the substrate, the spacers move and the uniform distribution collapses.
【０００８】また、強誘電性液晶はもともと配向しにく
い性質をもつが、とくにその液晶中にスペーサが介在し
ていると、そのスペーサの付近で配向が大きく乱れる。
したがってスペーサが一方の基板に形成された電極と、
他方の基板に形成された電極との対向間つまり画素領域
内に介在していると、その配向の乱れにより画像表示時
に表示むらが生じて表示品位が低下し、このためスペー
サは画素領域から外れる位置に配置させることが好まし
い。Further, although the ferroelectric liquid crystal originally has a property of being difficult to be aligned, especially when a spacer is interposed in the liquid crystal, the alignment is largely disturbed in the vicinity of the spacer.
Therefore, spacers and electrodes formed on one substrate,
If it is interposed between the electrode formed on the other substrate and in the pixel area, that is, the irregularity of the orientation causes display unevenness at the time of image display to deteriorate the display quality, and thus the spacer is removed from the pixel area. It is preferable to place it in a position.
【０００９】ところが、上述のようにスペーサを基板の
上に散布して設ける手段では、その位置が無秩序とな
り、したがって画素領域を避けるように配設することが
困難となる。However, with the means for providing the spacers scattered on the substrate as described above, the positions are disordered, and it is difficult to dispose the spacers so as to avoid the pixel region.
【００１０】そこで、例えば、一方の基板の周縁部にシ
ール材を印刷により枠状に形成し、他方の基板の上に、
画素領域を避けるように、フォトリソグラフィー法によ
り多数のスペーサを均等的に形成し、かつ一方の基板の
上に強誘電性液晶を滴下し、ついで両基板を一定の圧力
で重ね合わせ、前記スペーサによりその両基板間のギャ
ップを一定に保ち、この状態でシール材を加熱して硬化
させ、このシール材により両基板を接着して液晶素子を
組み立てる製造方法が一般に採用されている。Therefore, for example, a sealing material is formed in a frame shape by printing on the peripheral portion of one substrate, and the sealing material is formed on the other substrate.
A large number of spacers are uniformly formed by photolithography so as to avoid the pixel region, and a ferroelectric liquid crystal is dropped on one of the substrates, and then both substrates are superposed with a constant pressure, and the spacers are used. A manufacturing method in which a gap between both substrates is kept constant, a sealing material is heated and cured in this state, and both substrates are bonded by this sealing material to assemble a liquid crystal element is generally adopted.
【００１１】このような製造方法によれば、スペーサが
基板に対して一体的に形成されているから、強誘電性液
晶の拡がり時の流れで移動するようなことがなく、また
各スペーサが画素領域を避ける部分に配置するから、画
像を表示したときに表示むらが生じるようなことがな
い。According to such a manufacturing method, since the spacers are formed integrally with the substrate, they do not move due to the flow of the ferroelectric liquid crystal when they spread, and each spacer has a pixel shape. Since it is arranged in a portion that avoids the area, display unevenness does not occur when an image is displayed.
【００１２】[0012]
【発明が解決しようとする課題】しかしながら、このよ
うな製造方法においては、両基板を重ね合わせてその隙
間内に強誘電性液晶を封入し、こののちシール材を加熱
して硬化させるものであるから、強誘電性液晶が未硬化
状態のシール材と直接接触してしまう。However, in such a manufacturing method, the two substrates are superposed on each other, the ferroelectric liquid crystal is enclosed in the gap, and then the sealing material is heated and cured. Therefore, the ferroelectric liquid crystal comes into direct contact with the uncured sealing material.
【００１３】強誘電性液晶とシール材が直接接触する
と、シール材中の不純物が液晶中に混入して液晶の特性
が悪化してしまう恐れがある。そしてこののちシール材
が加熱されて硬化する際に、このシール材から揮発性物
質等が発生してこれが液晶中に混入し、さらに大きな悪
影響が生じてしまう。If the ferroelectric liquid crystal and the sealing material come into direct contact with each other, impurities in the sealing material may be mixed into the liquid crystal and the characteristics of the liquid crystal may be deteriorated. After that, when the sealing material is heated and cured, a volatile substance or the like is generated from the sealing material and is mixed into the liquid crystal, which causes a larger adverse effect.
【００１４】本発明はこのような点に着目してなされた
もので、その目的とするところは、基板間の隙間を一定
に保つスペーサを画素領域から外れる部分に配置させて
表示品位の低下を防止できるとともに、その隙間内に封
入する強誘電性液晶と未硬化状態のシール材との接触を
避けてそのシール材による液晶への悪影響を防止するこ
とができる強誘電性液晶素子の製造方法を提供すること
にある。The present invention has been made paying attention to such a point, and an object thereof is to reduce the display quality by disposing a spacer for keeping the gap between the substrates constant in a portion outside the pixel region. A method for manufacturing a ferroelectric liquid crystal device, which can prevent the liquid crystal from being in contact with the uncured sealing material and prevent the liquid crystal from being adversely affected by the sealing material. To provide.
【００１５】[0015]
【課題を解決するための手段】本発明はこのような目的
を達成するために、透明電極が形成された一対の基板間
に強誘電性液晶を封入してなる強誘電性液晶素子を製造
する方法であって、前記一対の基板のいずれか一方に、
その画素領域を避ける部分に配置する柱状のスペーサ
と、該基板の周縁に沿う部分に配置する枠状のスペーサ
とをフォトリソグラフィー法により同時に形成し、かつ
前記一対の基板の少なくとも一方に、前記枠状のスペー
サの外周を囲むことが可能な大きさの枠状のシール材を
形成し、前記いずれか一方の基板の上に強誘電性液晶を
滴下し、ついで前記一対の基板を前記シール材が前記枠
状のスペーサの外周に配置するように重ね合わせて加圧
し、この状態で前記シール材を硬化させ、このシール材
を介して両基板を接着させるようにしたものである。In order to achieve such an object, the present invention manufactures a ferroelectric liquid crystal device in which a ferroelectric liquid crystal is sealed between a pair of substrates on which transparent electrodes are formed. A method, wherein one of the pair of substrates,
A columnar spacer arranged in a portion avoiding the pixel region and a frame-shaped spacer arranged in a portion along the peripheral edge of the substrate are simultaneously formed by a photolithography method, and the frame is formed on at least one of the pair of substrates. Forming a frame-shaped sealing material having a size capable of enclosing the outer periphery of the spacers, dropping the ferroelectric liquid crystal onto one of the substrates, and then sealing the pair of substrates with the sealing material. The frame-shaped spacers are overlapped and pressed so as to be arranged on the outer periphery of the frame-shaped spacer, and the sealing material is cured in this state, and the two substrates are bonded via the sealing material.
【００１６】[0016]
【作用】両基板を重ね合わせて加圧したときに、基板上
の強誘電性液晶が流れ拡がる。しかしスペーサが基板に
フォトリソグラフィー法により一体的に設けられている
から、強誘電性液晶の流れ拡がりの圧力でスペーサが移
動するようなことがなく、したがって両基板間の隙間が
一定に保たれる。そして柱状のスペースが画素領域を避
ける部分に配置しているから、画像表示時に表示むらが
生じるようなことがない。When both substrates are superposed and pressed, the ferroelectric liquid crystal on the substrates flows and spreads. However, since the spacer is integrally provided on the substrate by the photolithography method, the spacer does not move due to the pressure of the flow spreading of the ferroelectric liquid crystal, and therefore the gap between both substrates is kept constant. . Further, since the columnar space is arranged in a portion avoiding the pixel region, display unevenness does not occur at the time of displaying an image.
【００１７】基板の上に強誘電性液晶を滴下して両基板
を重ね合わせた際には、枠状のスペーサがシール材の内
側に嵌合し、このためその重ね合わせに応じて流れ拡が
る強誘電性液晶は枠状のスペーサにより遮られて未硬化
状態のシール材と接触するようなことがない。したがっ
て未硬化状態のシール材中の不純物等が強誘電性液晶中
に混入したり、シール材を加熱して硬化させる際にその
シール材から発生する揮発性物質等が強誘電性液晶中に
混入するようなことがない。When the ferroelectric liquid crystal is dropped on the substrates and the two substrates are superposed on each other, the frame-like spacer is fitted inside the sealing material, so that the flow spreads according to the superposition. The dielectric liquid crystal is not blocked by the frame-shaped spacer and does not come into contact with the uncured sealing material. Therefore, impurities etc. in the uncured sealing material are mixed in the ferroelectric liquid crystal, and volatile substances etc. generated from the sealing material when the sealing material is heated and cured are mixed in the ferroelectric liquid crystal. There is nothing to do.
【００１８】[0018]
【実施例】以下、本発明の一実施例について図１および
図２を参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.
【００１９】図１（Ａ）は、基板１，２間に強誘電性液
晶ＬＣを封入する前の状態を示し、図１（Ｂ）は基板
１，２間の隙間内に強誘電性液晶ＬＣを封入して液晶素
子を組み立てた状態を示してある。FIG. 1A shows a state before the ferroelectric liquid crystal LC is sealed between the substrates 1 and 2, and FIG. 1B shows the ferroelectric liquid crystal LC in the gap between the substrates 1 and 2. The figure shows a state in which the liquid crystal element is assembled by enclosing.
【００２０】各基板１，２にはそれぞれその一方の面の
上に透明な電極３，４が配列形成されている。これら電
極３，４は、両基板１，２を重ね合わせときに立体的に
交差するように配置し、その交差の対向間が画素領域Ａ
となるものである。電極３，４はそれぞれ絶縁膜５，６
で覆われ、この絶縁膜５，６の上に配向膜７，８が形成
されている。Transparent electrodes 3 and 4 are arrayed on one surface of each of the substrates 1 and 2. The electrodes 3 and 4 are arranged so as to intersect three-dimensionally when the substrates 1 and 2 are overlapped with each other, and a pixel area A is provided between the opposing intersections.
It will be. The electrodes 3 and 4 are insulating films 5 and 6, respectively.
And the alignment films 7 and 8 are formed on the insulating films 5 and 6.
【００２１】基板２における配向膜８の上には、多数の
柱状のスペーサ９ａと枠状のスペーサ９ｂが形成されて
いる。これら柱状のスペーサ９ａおよび枠状のスペーサ
９ｂはそれぞれ一定の高さに形成され、一方の柱状のス
ペーサ９ａは、図２に示すように、画素領域Ａとなる部
分を避け、かつ基板２の上に均等的に分布するように配
置し、他方の枠状のスペーサ９ｂは基板２の周縁のやや
内側の部分に沿って前記柱状のスペーサ９ａを囲むよう
に配置している。On the orientation film 8 on the substrate 2, a large number of columnar spacers 9a and frame-shaped spacers 9b are formed. The columnar spacers 9a and the frame-shaped spacers 9b are formed to have a constant height, and one columnar spacer 9a avoids a portion which becomes the pixel region A as shown in FIG. And the other frame-shaped spacers 9b are arranged so as to surround the columnar spacers 9a along a portion slightly inside the peripheral edge of the substrate 2.
【００２２】このようなスペーサ９ａ，９ｂは、基板２
の上の全体に例えば感光性樹脂を一定の厚さに塗布し、
これをフォトリソグラフィー法によりパターニングする
方法で形成する。したがって各スペーサ９ａ，９ｂの高
さが確実に均一の寸法に仕上がる。Such spacers 9a and 9b are provided on the substrate 2
Apply a photosensitive resin, for example, to a certain thickness on the whole of
This is formed by a patterning method using a photolithography method. Therefore, the height of each spacer 9a, 9b is surely finished to a uniform size.
【００２３】なお、スペーサ９ａ，９ｂを形成する工程
と、絶縁膜６および配向膜８を形成する工程は逆の順序
であってもよい。すなわち、基板２の上に電極４を形成
したのちに、この基板２の上に感光性樹脂を塗布し、こ
れをフォトリソグラフィー法によりパターニングして前
記電極４を避ける部分に柱状のスペーサ９ａを、基板２
の周縁部分に枠状のスペーサ９ｂを形成し、ついで基板
２の上に前記電極４を覆う絶縁膜５を形成し、この絶縁
膜５の上に配向材を塗布しその膜面にラビング等による
配向処理を施して配向膜８を形成するようにしてもよ
い。The step of forming the spacers 9a and 9b and the step of forming the insulating film 6 and the alignment film 8 may be performed in the reverse order. That is, after the electrodes 4 are formed on the substrate 2, a photosensitive resin is applied on the substrate 2 and patterned by a photolithography method to form columnar spacers 9a at the portions avoiding the electrodes 4. Board 2
A frame-shaped spacer 9b is formed on the peripheral portion of the substrate, then an insulating film 5 for covering the electrode 4 is formed on the substrate 2, an alignment material is applied on the insulating film 5, and the film surface is rubbed or the like. The alignment film 8 may be formed by performing an alignment treatment.
【００２４】一方、基板１の上には、前記枠状のスペー
サ９ｂの外周を囲むことが可能な拡がりの大きさをもつ
枠状のシール材１０が形成されている。このシール材１
０は例えば熱硬化性樹脂からなり、印刷法により基板１
の上に形成されている。次に、液晶素子を組み立てる工
程について説明する。On the other hand, on the substrate 1, there is formed a frame-shaped sealing material 10 having a spread size capable of enclosing the outer periphery of the frame-shaped spacer 9b. This seal material 1
0 is made of a thermosetting resin, for example, and is printed on the substrate 1 by a printing method.
Is formed on. Next, a process of assembling the liquid crystal element will be described.
【００２５】まず、図１（Ａ）に鎖線で示すように、一
方の基板１の上の中央部分に強誘電性液晶ＬＣをその封
入量に見合う量だけ滴下して乗せ、この基板１の上方に
他方の基板２を対向して配置させる。このとき、両基板
１，２は強誘電性液晶ＬＣが液晶相から液体相に転位す
る付近の温度にまで予め加熱しておく。First, as shown by the chain line in FIG. 1A, the ferroelectric liquid crystal LC is dropped and placed on the central portion of one substrate 1 in an amount corresponding to the enclosed amount, and the upper portion of the substrate 1 is covered. The other substrate 2 is arranged so as to face each other. At this time, both substrates 1 and 2 are preheated to a temperature near the point where the ferroelectric liquid crystal LC is transformed from the liquid crystal phase to the liquid phase.
【００２６】ついで、一方の基板１のシール材１０が他
方の基板２の枠状のスペーサ９ｂの外周に嵌合するよう
に両基板１，２を一定の圧力を加えながら重ね合わせ
る。この重ね合わせにより両基板１，２間の強誘電性液
晶ＬＣが液晶封入領域の全体に流れ拡がり、かつ両基板
１，２間の隙間が柱状のスペーサ９ａおよび枠状のスペ
ーサ９ｂにより一定に保持される。Then, the two substrates 1 and 2 are overlapped with each other while applying a constant pressure so that the sealing material 10 of one substrate 1 fits on the outer periphery of the frame-shaped spacer 9b of the other substrate 2. By this superposition, the ferroelectric liquid crystal LC between the substrates 1 and 2 spreads and spreads over the entire liquid crystal sealing region, and the gap between the substrates 1 and 2 is kept constant by the columnar spacer 9a and the frame-shaped spacer 9b. To be done.
【００２７】また両基板１，２の重ね合わせに応じて、
基板１に形成されたシール材１０が基板２に圧着すると
ともに、その圧力でシール材１０が図１（Ｂ）に示すよ
うに弾性的に変形して枠状のスペーサ９ｂの外周部に密
着する。Depending on the superposition of the two substrates 1 and 2,
The sealing material 10 formed on the substrate 1 is pressure-bonded to the substrate 2, and the pressure causes the sealing material 10 to be elastically deformed as shown in FIG. 1 (B) and adhere to the outer peripheral portion of the frame-shaped spacer 9b. .
【００２８】こののち、基板１，２の重ね合わせの圧力
を保持したまま、シール材１０を加熱して硬化させ、こ
のシール材１０により両基板１，２を接着して液晶素子
を組み立てる。なお、このような液晶素子の組み立ての
工程は、真空槽内において行なう。After that, the sealing material 10 is heated and cured while the pressure for superposing the substrates 1 and 2 is maintained, and the substrates 1 and 2 are bonded by the sealing material 10 to assemble a liquid crystal element. The process of assembling such a liquid crystal element is performed in a vacuum chamber.
【００２９】このような製造方法においては、スペーサ
９ａ，９ｂが基板２に一体的に形成されているから、強
誘電性液晶ＬＣが流れ拡がるときの圧力で移動するよう
なことがなく、したがって柱状のスペーサ９ａが両基板
１，２間に均等的に分布して確実に両基板１，２間の隙
間が一定に保たれる。そして前記柱状のスペース９ａが
画素領域Ａを避ける部分に配置しているから、画像表示
時に表示むらが生じるようなことがなく、表示品位の低
下を防止することができる。In such a manufacturing method, since the spacers 9a and 9b are integrally formed on the substrate 2, the ferroelectric liquid crystal LC does not move due to the pressure when the liquid crystal spreads, and therefore the columnar shape. The spacers 9a are evenly distributed between the substrates 1 and 2 and the gap between the substrates 1 and 2 is surely kept constant. Further, since the columnar space 9a is arranged in a portion avoiding the pixel region A, display unevenness does not occur during image display, and it is possible to prevent deterioration of display quality.
【００３０】基板１の上に強誘電性液晶ＬＣを滴下して
両基板１，２を重ね合わせた際には、枠状のスペーサ９
ｂがシール材１０の内側に嵌合し、このためその重ね合
わせに応じて流れ拡がる強誘電性液晶ＬＣは前記枠状の
スペーサ９ｂにより遮られて強誘電液晶ＬＣと未硬化状
態のシール材１０とが直接接触するようなことがない。When the ferroelectric liquid crystal LC is dropped on the substrate 1 and the two substrates 1 and 2 are superposed on each other, a frame-shaped spacer 9 is formed.
b is fitted inside the sealing material 10, and therefore the ferroelectric liquid crystal LC that spreads according to the superposition is blocked by the frame-shaped spacer 9b and the ferroelectric liquid crystal LC and the uncured sealing material 10 are blocked. There is no direct contact with.
【００３１】したがって未硬化状態のシール材１０中の
不純物等が強誘電性液晶ＬＣ中に混入することも、また
シール材１０を加熱して硬化させる際にこのシール材１
０から発生する揮発性物質等が強誘電性液晶ＬＣ中に混
入するようなことがなく、シール材１０による液晶ＬＣ
への悪影響を確実に防止することができる。Therefore, impurities and the like in the uncured sealing material 10 may be mixed in the ferroelectric liquid crystal LC, and the sealing material 1 is heated when the sealing material 10 is cured.
The liquid crystal LC produced by the sealing material 10 does not mix volatile substances generated from 0 into the ferroelectric liquid crystal LC.
It is possible to reliably prevent adverse effects on the.
【００３２】なお、前記実施例においては、一方の基板
１にシール材１０を形成し、他方の基板２にスペーサ９
ａ，９ｂを形成するようにしたが、いずれか一方の基板
１または２にシール材１０とスペーサ９ａ，９ｂを形成
して両基板１，２を重ね合わせるような場合であっても
よいし、また両方の基板１，２にシール材１０を形成
し、両基板１，２を重ね合わせる際にそのシール材１０
を互いに圧着させるような場合であっても差し支えな
い。In the above embodiment, the sealing material 10 is formed on one substrate 1 and the spacer 9 is formed on the other substrate 2.
Although a and 9b are formed, the case where the sealing material 10 and the spacers 9a and 9b are formed on either one of the substrates 1 or 2 and the both substrates 1 and 2 are overlapped may be adopted. Further, the sealing material 10 is formed on both the substrates 1 and 2, and the sealing material 10 is used when the substrates 1 and 2 are stacked.
It does not matter even if the two are pressed against each other.
【００３３】[0033]
【発明の効果】以上説明したように本発明によれば、基
板間の隙間を一定に保つスペーサを画素領域から外れる
部分に配置させることができ、したがって表示品位の低
下を防止でき、また両基板を重ね合わせてその隙間内に
強誘電性液晶を封入する際に、その強誘電性液晶と未硬
化状態のシール材との接触を避けることができ、したが
ってそのシール材から液晶へ不純物等が混入するような
悪影響を防止することができる利点がある。As described above, according to the present invention, it is possible to dispose a spacer for keeping the gap between the substrates constant in a portion outside the pixel region, and thus to prevent the display quality from deteriorating. When encapsulating the ferroelectric liquid crystal in the gap by overlapping the two, it is possible to avoid contact between the ferroelectric liquid crystal and the uncured seal material, and therefore impurities and the like are mixed into the liquid crystal from the seal material. There is an advantage that it is possible to prevent such an adverse effect.
【図１】本発明の一実施例による強誘電性液晶素子を製
造する方法を説明するための図で、（Ａ）は一対の基板
を重ね合わせる前の状態を示す断面図、（Ｂ）は一対の
基板を重ね合わせた後の状態を示す断面図である。1A and 1B are views for explaining a method of manufacturing a ferroelectric liquid crystal device according to an embodiment of the present invention, FIG. 1A is a sectional view showing a state before a pair of substrates are stacked, and FIG. It is sectional drawing which shows the state after superposing a pair of board | substrates.
【図２】図１（Ａ）のＸ−Ｘ線に沿う断面図である。FIG. 2 is a sectional view taken along line XX of FIG.
【図３】基板間に強誘電性液晶を封入する一般的な方法
を説明するための斜視図である。FIG. 3 is a perspective view for explaining a general method of filling a ferroelectric liquid crystal between substrates.
１，２…基板 ３，４…電極 ９ａ，９ｂ…スペーサ １０…シール材 ＬＣ…強誘電性液晶 Ａ…画素領域 1, 2 ... Substrate 3, 4 ... Electrodes 9a, 9b ... Spacer 10 ... Sealing material LC ... Ferroelectric liquid crystal A ... Pixel region
Claims (1)
電性液晶を封入してなる強誘電性液晶素子を製造する方
法であって、 前記一対の基板のいずれか一方に、その画素領域を避け
る部分に配置する柱状のスペーサと、該基板の周縁に沿
う部分に配置する枠状のスペーサとをフォトリソグラフ
ィー法により同時に形成し、かつ前記一対の基板の少な
くとも一方に、前記枠状のスペーサの外周を囲むことが
可能な大きさの枠状のシール材を形成し、前記いずれか
一方の基板の上に強誘電性液晶を滴下し、ついで前記一
対の基板を前記シール材が前記枠状のスペーサの外周に
配置するように重ね合わせて加圧し、この状態で前記シ
ール材を硬化させ、このシール材を介して両基板を接着
させることを特徴とする強誘電性液晶素子の製造方法。1. A method of manufacturing a ferroelectric liquid crystal device, wherein a ferroelectric liquid crystal is sealed between a pair of substrates having transparent electrodes formed thereon, wherein the pixel is formed on one of the pair of substrates. A columnar spacer arranged in a portion avoiding the region and a frame-shaped spacer arranged in a portion along the periphery of the substrate are simultaneously formed by a photolithography method, and the frame-shaped spacer is formed on at least one of the pair of substrates. A frame-shaped sealing material having a size capable of enclosing the outer periphery of the spacer is formed, a ferroelectric liquid crystal is dropped on one of the substrates, and then the pair of substrates is sealed by the sealing material. A method for manufacturing a ferroelectric liquid crystal element, characterized in that the substrates are overlapped and pressed so as to be arranged on the outer periphery of the spacers, the sealing material is cured in this state, and the two substrates are bonded via the sealing material. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34371692A JPH06194615A (en) | 1992-12-24 | 1992-12-24 | Production of ferroelectric liquid crystal element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34371692A JPH06194615A (en) | 1992-12-24 | 1992-12-24 | Production of ferroelectric liquid crystal element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06194615A true JPH06194615A (en) | 1994-07-15 |
Family
ID=18363704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34371692A Pending JPH06194615A (en) | 1992-12-24 | 1992-12-24 | Production of ferroelectric liquid crystal element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06194615A (en) |
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