JPS6254229A - Manufacturing method for liquid crystal display - Google Patents
Manufacturing method for liquid crystal displayInfo
- Publication number
- JPS6254229A JPS6254229A JP15583785A JP15583785A JPS6254229A JP S6254229 A JPS6254229 A JP S6254229A JP 15583785 A JP15583785 A JP 15583785A JP 15583785 A JP15583785 A JP 15583785A JP S6254229 A JPS6254229 A JP S6254229A
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- liquid crystal
- substrates
- substrate
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- pair
- 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.)
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
「発明の利用分野」
この発明は、液晶表示装置の作製方法に関するものであ
って、スメクチック液晶(以下sm?ff1品または液
晶という)特に例えば強誘電性液晶(以下F1.Cとい
う)を用いた表示パネルを設けることにより、マイクロ
コンピュータ、ワードプロセソザまたはテレビ等の表示
部の薄膜化を図る液晶表示装置の作製方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a method for manufacturing a liquid crystal display device, and particularly relates to a method for manufacturing a liquid crystal display device. The present invention relates to a method for manufacturing a liquid crystal display device, which aims to reduce the thickness of the display section of a microcomputer, word processor, television, etc. by providing a display panel using the .C).
「従来の技術」
固体表示パネルは各絵素を独立に制御する方式゛が大面
積用として有効である。このようなパネルとして、従来
は、二周波液晶例えばツウイスティック・ネマチック液
晶(以下TN液晶という)を用い、横方向400素子ま
た縦方向200素子とするへ4判サイズの単純71〜リ
ソクス構成にマルチプレキシング駆動方式を用いた表示
装置が知られている。``Prior Art'' For solid-state display panels, a method in which each picture element is controlled independently is effective for use in large areas. Conventionally, such a panel uses a dual-frequency liquid crystal, such as a twin-stick nematic liquid crystal (hereinafter referred to as TN liquid crystal), and has a simple 71 to 4-inch structure with 400 elements in the horizontal direction and 200 elements in the vertical direction. Display devices using a multiplexing drive method are known.
しかし、かかるTN液晶を作製せんとした場合、このT
N液晶の粘度が低いため、一対のガラス基板を5〜10
μの間隙をあけて対抗せしめ、この一対のガラス基板の
周辺部に封止用シール剤をスペーサを混合して塗布し、
お互いを密着させる。この時周辺のシール部の一部の封
止をせず、開穴を残存して設けておく。この後この周辺
が封止された一対の基板を真空容器内に保持し、全体を
真空引きする。さらに、この後この開穴部分をTN液晶
溶液中に浸し、この真空容器内を大気圧にすることによ
り、毛細管現象を利用して一対の基板間の5〜10μの
間の空隙に液晶を充填せんとするものであった。However, if such a TN liquid crystal is not manufactured, this T
Because the viscosity of N liquid crystal is low, a pair of glass substrates is
Apply a sealing agent mixed with a spacer to the periphery of the pair of glass substrates, making them face each other with a gap of μ,
bring each other into close contact. At this time, a portion of the surrounding seal portion is not sealed, and an open hole is left. Thereafter, the pair of substrates whose peripheries have been sealed are held in a vacuum container, and the whole is evacuated. Furthermore, by immersing this hole in a TN liquid crystal solution and bringing the inside of this vacuum container to atmospheric pressure, liquid crystal is filled into the gap between 5 to 10μ between the pair of substrates using capillary action. It was something I wanted to do.
「発明が解決しようとする問題点」
しかしかかる方法は、TN液晶の如き室温で低粘度の液
晶を基板間に充填する場合には優れている。"Problems to be Solved by the Invention" However, this method is excellent when filling a space between substrates with a liquid crystal having a low viscosity at room temperature, such as a TN liquid crystal.
しかし、
(1)粘度の高いスメクチック液晶例えばSmC”層を
用いるFLCに対してはきわめて作業がしづらい。However, (1) it is extremely difficult to work with FLCs that use smectic liquid crystals with high viscosity, such as SmC''layers;
(2)セルの電極間の間隙を4 lt以下好ましくは0
.5〜3μの狭い間隙を用いることを前提とするFl、
Cを用いる場合、充填にきわめて時間がかかってしまう
。(2) The gap between the electrodes of the cell should be 4 lt or less, preferably 0.
.. Fl, which assumes the use of a narrow gap of 5 to 3 μ;
When C is used, filling takes a very long time.
(3) Fl、Cを大面積例えばA4版に対し充填せん
とする場合、8〜10時間もの長時間高温例えば120
°Cで充填作業を必要とする。そのため、周辺部の封止
が劣化しやすい。またこの封止材料が不純物として液晶
内に混入しやすい。(3) When filling Fl and C into a large area, e.g.
Requires filling operation at °C. Therefore, the sealing around the periphery is likely to deteriorate. Moreover, this sealing material is likely to be mixed into the liquid crystal as an impurity.
(4)液晶の充填に伴いセルギャップを決めているスペ
ーサ(通称貝柱)が一方に偏りやすい。(4) As the liquid crystal is filled, the spacer (commonly known as a scallop) that determines the cell gap tends to be biased to one side.
′(5)充填の際有効に用いられない液晶材料が全体の
90%近(になってしまい無駄が多い。'(5) During filling, nearly 90% of the liquid crystal material is not effectively used, resulting in a lot of waste.
等の多くの欠点を有する。It has many disadvantages such as.
本発明はかかる問題点を解くものである。The present invention solves this problem.
「問題を解決するための手段」
かかる問題を解決するため、本発明は、一対の基板に対
し液晶を充填する前に一対の基板の周辺部をシールする
のではなく、一方の基板の被充填面上に液晶を設けた後
、この液晶上に他方の基板の被充填面を密接せしめ、さ
らに一対の基板を所定の相互位置に配設せしめるもので
ある。さらにこの工程と同時工程として、周辺部特に正
方形または長方形の基板のコーナ部に封止用シールを行
わしめるいわゆるラミネート(薄層にする、薄層にのば
すの意)方式を用いることを基本とする。"Means for Solving the Problem" In order to solve this problem, the present invention does not seal the periphery of the pair of substrates before filling the pair of substrates with liquid crystal, but rather After the liquid crystal is provided on the surface, the surface to be filled of the other substrate is brought into close contact with the liquid crystal, and then the pair of substrates are disposed at predetermined mutual positions. Furthermore, as a simultaneous process with this process, we basically use a so-called lamination (making it into a thin layer, spreading it into a thin layer) method that seals the periphery, especially the corners of square or rectangular substrates. .
加えて本発明においては、液晶材料としてスメクチック
液晶、特に好ましくはスメクチックC相(SmC“)を
呈する強誘電性液晶を用いる。即らセルの間隔を4μm
またはそれ以下の一般には0.5〜3μmとすることに
より双安定状態を得ることができる。In addition, in the present invention, a smectic liquid crystal, particularly preferably a ferroelectric liquid crystal exhibiting a smectic C phase (SmC"), is used as the liquid crystal material. That is, the cell spacing is 4 μm.
A bistable state can be obtained by setting the thickness to 0.5 to 3 μm or less.
即ち、かかる一方の基板の電極上の被充填面」二の一点
または複点に(等方性)液晶を滴下、散布またはコート
する。さらに一方または他方の基板のコーナ部に封止用
樹脂を微量滴下する。この後、他方の基板をこの上に配
設する。That is, (isotropic) liquid crystal is dropped, sprinkled, or coated on one or more points on the filling surface on the electrode of one of the substrates. Furthermore, a small amount of sealing resin is dropped onto the corner portion of one or the other substrate. After this, the other substrate is placed on top of this.
さらにこれらを真空引きをし、その前後において加熱し
、その一対の基板を互いに加圧して、それぞれの基板の
内側に設置ノられた被充填面を4μ以下の間隙にして互
いにFl、Cと密接せしめ、加えて周辺部の少なくとも
一部を同時に封止せしめる。Furthermore, these are evacuated, heated before and after, and the pair of substrates are pressurized to each other, so that the surfaces to be filled installed inside each substrate are kept in close contact with each other with a gap of 4μ or less. In addition, at least a portion of the periphery is simultaneously sealed.
さらにこの薄いFl、Cが充填されラミネートされた基
板の温度を降下させ、SmAを得、さらに双安定なSm
C”を得る。するとら−Uん構造をとくことができる。Furthermore, the temperature of this thin Fl, C-filled and laminated substrate is lowered to obtain SmA, and further bistable Sm
C" is obtained. Then, the Tora-U structure can be removed.
この後、常温に保存した後、周辺部の辺の部分に対しシ
ール用のプラスチック封止剤による封止を行う。Thereafter, after storing it at room temperature, the peripheral edges are sealed with a plastic sealant.
かかる本発明方法においてはこのコーナ部でお互いの基
板の接触面積を多くでき、互いに固く固着させることが
できる。In the method of the present invention, the contact area between the substrates can be increased at this corner portion, and the substrates can be firmly fixed to each other.
また本発明でも残された問題点の使用温度範囲は、現在
複数の異なったPLCを組合わせて(ブレンドして)0
〜50℃において使用が可能となっている。このため実
用上はそれほど問題とならず、また階調に関してはカラ
ーも8色までとするならば階調が不要であり、マイクロ
コンピュータ等のディスプレイとしては十分実用が可能
であることが判明した。In addition, the operating temperature range, which is a problem that remains even with the present invention, is currently limited by combining (blending) multiple different PLCs.
It can be used at ~50°C. Therefore, it does not pose much of a problem in practice, and as far as gradations are concerned, if the number of colors is up to eight, gradations are not necessary, and it has been found that it is fully usable as a display for microcomputers and the like.
「作用」
かくすることにより、
(1)セルはスペーサを散布しその大きさにより最小の
間隙を決定するため、形成されるFl、Cの間隙にばら
つきがない。"Function" By doing this, (1) Since the cells are dispersed with spacers and the minimum gap is determined by the size of the spacers, there is no variation in the gaps formed between Fl and C.
(2)4μ以下の間隙(セル厚)の薄いセルであっても
大面積(A4版相当)であっても短時間でラミネート作
業を行うことができる。(2) Even if the cells are thin with a gap (cell thickness) of 4μ or less or have a large area (equivalent to A4 size), lamination work can be performed in a short time.
(3)基板上に設けたFLCを100χ有効利用するこ
とができる。(3) FLC provided on the substrate can be effectively utilized by 100χ.
(4)粘度の高いFLCを用いても、そのラミネートお
よび封止の作業に1時間以上を必要としない。(4) Even if FLC with high viscosity is used, the lamination and sealing operations do not require more than one hour.
(5)一方の基板側にはアクティブ素子とそれに連結し
た電極を設けても、まったくアクティブ素子を用いない
パッシブ構造と同一工程でFLCのラミネートができる
。(5) Even if an active element and an electrode connected thereto are provided on one substrate side, FLC can be laminated in the same process as a passive structure that does not use any active element.
さらに、これらの特徴により本発明の液晶のラミネート
(2つの基板の間隙を少しづつ狭くし、その間に液晶を
薄層化して介在させることを示す)方法を用い、加えて
非線型素子(NF、)と強誘電性液晶(Fl、C) と
を直列にして各画素を構成せしめる場合、A4版または
それ以」二の大面積のマトリックス化にそれぞれの画素
間のクロスト−りを除去し駆動させることが初めて成就
できた。Furthermore, due to these characteristics, the liquid crystal lamination method of the present invention (indicating that the gap between two substrates is gradually narrowed and a thin layer of liquid crystal is interposed between them) is used, and in addition, nonlinear elements (NF, ) and ferroelectric liquid crystals (Fl, C) in series to form each pixel, crosstalk between each pixel is removed and driven in a large-area matrix of A4 size or larger. I was able to accomplish this for the first time.
以下に実施例に従って本発明を説明する。The present invention will be explained below according to examples.
「実施例1」 第1図は本発明の液晶表示装置の作製工程を示す。"Example 1" FIG. 1 shows the manufacturing process of a liquid crystal display device of the present invention.
第1図(八)は2つの基板(1)、(1’)を有する。FIG. 1 (8) has two substrates (1) and (1').
この相対向する面(8) 、 (8”)側にはそれぞれ
電極を有している。またカラー表示をするには、その一
方□の側の電極と基板との間または電極と充填される液
晶との間にカラーフィルタが設けられている。Each of the opposing surfaces (8) and (8") has an electrode. In addition, in order to display color, it is necessary to fill in the space between the electrode and the substrate on the one □ side, or between the electrode and the electrode. A color filter is provided between the liquid crystal and the liquid crystal.
さらにこの電極の上面には公知の非対称配向処理がなさ
れている。Further, the upper surface of this electrode is subjected to a known asymmetric alignment treatment.
これらの図面では、簡単にするため図示することを省略
して単に基板として表記している。しかし一対の基板の
相対向する側にこれらの電極、フィルタ、配向処理、ブ
ラックマトリックス化するシアドウ処理(マスク)の形
成、アクティブ素子の作製等を必要に応じて行うことは
有効である。In these drawings, for the sake of simplicity, illustration is omitted and it is simply referred to as a substrate. However, it is effective to perform these electrodes, filters, alignment treatment, formation of a black matrix masking treatment (mask), production of active elements, etc. on opposite sides of a pair of substrates, as necessary.
また、基板は一般にはガラス基板例えばコーニング70
59を使用する。しかし基板の一方または双方に可曲性
の基板を用いることは有効である。そしてその可曲性基
板として、化学強化がなされた0、3〜0.6mm厚の
ガラス基板、またはポリイミド。The substrate is generally a glass substrate such as Corning 70
59 is used. However, it is effective to use a flexible substrate for one or both of the substrates. The flexible substrate is a chemically strengthened glass substrate with a thickness of 0.3 to 0.6 mm, or polyimide.
PAN、 PET等の透光性耐熱性有機樹脂基板を用い
ることは有効である。It is effective to use a light-transmitting heat-resistant organic resin substrate such as PAN or PET.
この基板上の電極上には配向処理層(非対称配向処理層
)が設けられ、その上面を被充填面とした。そしてこの
面上に、FLC、例えばS8(オクチル・オキシ・ベン
ジリデン・アミノ・メチル・ブチル・ベンゾエイト)を
設けた。これ以外でも、BOB静BC等のFLCまたは
複数のブレンドを施したFLCを充填し得る。例えばこ
こではS8と87とのブレンドした液晶を用いた。An alignment treatment layer (asymmetric alignment treatment layer) was provided on the electrode on this substrate, and its upper surface was used as the surface to be filled. Then, on this surface, an FLC, for example, S8 (octyl oxy benzylidene amino methyl butyl benzoate) was provided. In addition to this, FLC such as BOB static BC or FLC blended with a plurality of FLCs may be filled. For example, here, a blended liquid crystal of S8 and 87 was used.
さらにこの一対の基板の一方の被充填面上に液晶(2)
を滴下させた。Furthermore, a liquid crystal (2) is placed on the filling surface of one of the pair of substrates.
was dripped.
さらに他方の被充填面を下側に配向させた複数の周辺部
特にコーナ部にエポキシ系の封止の樹脂(19) 、
(19’)を微量に滴下した。これは熱硬化性樹脂を用
いた。Furthermore, epoxy-based sealing resin (19) is applied to a plurality of peripheral parts, especially corner parts, with the other filling surface oriented downward.
(19') was added dropwise in a small amount. This used thermosetting resin.
かかる液晶が設けられた一対の基板を第1図(B)に示
すごとき真空容器(1,00)に封入した。この真空容
器(1,00)は容器側(10)に第1の空間を有し、
蓋側(10’)に第2の空間(5)を有する。第1の空
間(4)内にはヒータ(3)が設けられている。このヒ
ータ(3)上に一方の基板(1)を配設し、この基板を
室温〜150℃内の所定の温度、例えば液晶の粘度が十
分低くなる70〜150℃例えば120℃に加熱制御さ
せた。すると既に基板(1)上の被充填面に設けられた
液晶(3)が加熱され被充填面に拡がる。この液晶を滴
下して設ける前または後に所定の間隔をおいて基板上に
スペーサを配設させた。A pair of substrates provided with such liquid crystals were sealed in a vacuum container (1,00) as shown in FIG. 1(B). This vacuum container (1,00) has a first space on the container side (10),
A second space (5) is provided on the lid side (10'). A heater (3) is provided within the first space (4). One of the substrates (1) is placed on this heater (3), and the substrate is heated and controlled to a predetermined temperature within the range of room temperature to 150°C, for example, 70 to 150°C, such as 120°C, at which the viscosity of the liquid crystal is sufficiently low. Ta. Then, the liquid crystal (3) already provided on the surface to be filled on the substrate (1) is heated and spreads to the surface to be filled. Spacers were placed on the substrate at predetermined intervals before or after dropping the liquid crystal.
このスペーサはまったく用いない方式をとってもよい。A method may also be adopted in which this spacer is not used at all.
さらにこの上方に対向する他方の基板(1゛)を1〜1
0mm離間してまたはかるくお互いを部分的に接せしめ
て配置させた。Furthermore, the other board (1゛) facing above this
They were arranged at a distance of 0 mm or slightly in contact with each other.
この後、この第2の空間(5)を有する蓋側容器(10
’)をOリングにより容器(10)側に合わせ込んだ。After this, the lid side container (10) having this second space (5)
') was fitted onto the container (10) side using an O-ring.
この第2の空間の下側には、第1の空間と第2の空間と
がお互いに弾力性を有する層(以下簡単のためシリコン
ラバー(6)という)で遮蔽されている。そして第2の
空間と第1の空間の圧力において、第1の空間の圧力が
正圧の場合は下側を膨張し、逆の負圧の場合は上側に引
っ張られるようになっている。このラバーは少なくとも
150℃の温度に耐えることができる材料であれば、シ
リコンラバーにかぎらない。Below the second space, the first space and the second space are shielded from each other by a layer having elasticity (hereinafter referred to as silicone rubber (6) for simplicity). Regarding the pressures in the second space and the first space, when the pressure in the first space is positive, the lower side expands, and when the pressure is negative, the lower side is pulled upward. This rubber is not limited to silicone rubber, as long as it can withstand a temperature of at least 150°C.
これらを0リングにより互いに合わせ込み、(11)。Align these with each other using an O-ring (11).
(11’)より同時に真空引きをした。即ち、この2つ
の出口は、バルブ(12) 、 (12’ )を経て真
空ポンプ(14)に連結されている。そしてこのバルブ
(12L(12’)をともに開、バルブ(13) 、
(13’)をともに閉として、第1および第2の空間(
4) 、 (5)をともに真空空間とした。(11') was simultaneously evacuated. That is, these two outlets are connected to a vacuum pump (14) via valves (12) and (12'). Then open both valves (12L (12'), valve (13),
(13') are both closed, and the first and second spaces (
4) and (5) are both vacuum spaces.
さらに第1図(C)に示す如(、この上面に離間してい
る他方の基板を精密に配設した。Further, as shown in FIG. 1(C), the other substrate was precisely placed on the upper surface of the substrate at a distance.
すると液晶(3)は上下の被充填面に互いに充填される
。加えてコーナ部の封、+h材(1,9) 、 (19
”)が加熱されている基板側に接触し温度を上昇させる
。Then, the liquid crystals (3) are filled into the upper and lower filling surfaces. In addition, corner sealing, +h material (1,9), (19
”) comes into contact with the heated substrate side and raises the temperature.
そして引き続き、他方の第2の空間(5)を真空状態よ
り第1の空間(4)に比べて正圧となるように徐々にバ
ルブ(13°)より大気または窒素をリークし大気圧に
させた。Then, air or nitrogen is gradually leaked from the valve (13°) to bring the other second space (5) from a vacuum state to atmospheric pressure so that the pressure is positive compared to the first space (4). Ta.
すると第1図(C)に示す如く、シリコンラバー(6)
は下側に膨張し、対向する他方の基板(1”)を一方の
基板(1)の側に押しつげる。そして大気圧においては
1kg/cm”の圧力を加えることができる。Then, as shown in Figure 1 (C), the silicone rubber (6)
expands downward and presses the other opposing substrate (1") toward the one substrate (1). At atmospheric pressure, a pressure of 1 kg/cm" can be applied.
また窒素によりさらに加圧する場合は1気圧以」−の2
〜5 kB7cm”の圧力とすることも可能である。In addition, when further pressurizing with nitrogen, 1 atm or more
A pressure of ~5 kB7 cm" is also possible.
かくして一対の基板の全表面に均一な圧力を加えること
ができ、この圧力により液晶は一点または複数点に点状
に設けられていたが、横方向に基板(1)の表面にそっ
て広がり、ラミネ−1〜される。In this way, it is possible to apply uniform pressure to the entire surface of the pair of substrates, and due to this pressure, the liquid crystal, which was provided at one or more points, spreads laterally along the surface of the substrate (1). Laminated 1~.
加えて封止材もそのコーナ部で広がり、1〜15mm口
の面積にてそれぞれの基板を互いに密接せしめた。In addition, the sealing material also spread at its corners, bringing the respective substrates into close contact with each other over an opening area of 1 to 15 mm.
この時一方の液晶または他方の封止材が互いに混合した
り、また所定の位置以上に他方により広がらないように
、1〜3μの繊維よりなるバリア(18) 、 (1B
’)を配設しておくと有効である。またこのバリアはコ
ーナ部のみでなく周辺全領域にわたって設けてもよい。At this time, to prevent one liquid crystal or the other sealing material from mixing with each other or spreading beyond a predetermined position, a barrier (18) made of fibers of 1 to 3 μm (1B
') is effective. Further, this barrier may be provided not only at the corner portion but also over the entire peripheral area.
さらにその一対の基板の電極側の間隙は4μ以下例えば
2μの均一な厚さとすることができる。Further, the gap between the pair of substrates on the electrode side can have a uniform thickness of 4 μm or less, for example, 2 μm.
そしてこの厚さはスペーサが2μの大きさのものを予め
配設しておくと2μとなり、1μのスペーサを散布させ
ておく時には1μとすることができる。This thickness can be 2μ if spacers with a size of 2μ are provided in advance, and 1μ if spacers with a size of 1μ are distributed.
もちろんスペーサをまったく用いず、この圧力と加熱し
ている温度とのみを精密に制御して所定の厚さにラミネ
ートさせることも可能である。Of course, it is also possible to laminate to a predetermined thickness by precisely controlling only this pressure and heating temperature without using any spacers.
その結果、液晶の余分のものは周辺部に移動する。しか
しこの外周辺をシリコンラバーが覆っているため、また
はバリア(18) 、 (18’ )が堤防の如くにブ
ロッキングしているため、これが基板の一部の外側周辺
より外側に液晶があふれることを実質的に防ぐことがで
きる。またすべての外周辺より液晶があふれたり、また
所望の領域全体を覆うことなく足りなくなったりするこ
とば、初期の液晶の供給量を精密にすることにより防く
ことができる。As a result, excess liquid crystal is moved to the periphery. However, because this outer periphery is covered with silicon rubber, or because the barriers (18) and (18') block like an embankment, this prevents the liquid crystal from overflowing beyond the outer periphery of a part of the substrate. Virtually preventable. In addition, overflowing the liquid crystal from all the outer peripheries or running out of the liquid crystal without covering the entire desired area can be prevented by precisely controlling the initial supply amount of the liquid crystal.
2つの基板のおたがいのX方向Y方向の重ね合わせば密
着させる基板(1)、(1’)及び液晶(3)が加熱さ
れている低粘度状態の時に移動させ再配設させることが
できる。By overlapping two substrates in the X and Y directions, they can be moved and rearranged when the substrates (1), (1') and liquid crystal (3) that are brought into close contact with each other are heated and in a low viscosity state. .
この後、第1図(C)でヒータを徐々に室温に降下した
。さらに第1の空間(5)をも大気圧とし真空容器(1
00)のM(10’)を取り外した。一対の基板間に液
晶をラミネートさせたセルを容器より取り出し第1図(
D)を作る。After this, the heater was gradually lowered to room temperature in FIG. 1(C). Furthermore, the first space (5) is also set to atmospheric pressure and the vacuum container (1
00) was removed. A cell with a liquid crystal laminated between a pair of substrates is removed from the container as shown in Figure 1 (
D).
この図はコーナ部を示し、封止材が2つの基板の間にも
介在し、それぞれを密着させている。This figure shows a corner part, and the sealing material is also interposed between the two substrates to bring them into close contact with each other.
かくして第1図(D)に示す如く、2つの対向する基板
(1,)、(1°)は液晶(3)を互いに実質的に重ね
合わせた状態にする。Thus, as shown in FIG. 1(D), the two opposing substrates (1,), (1°) cause the liquid crystals (3) to be substantially superimposed on each other.
第1図(E)は周辺部の辺の部分にその後の工程におい
て外側より封止用シール剤(9)(一般にはプラスチッ
ク材料)を塗布し、お互いの基板を固着させる。In FIG. 1(E), a sealing agent (9) (generally a plastic material) is applied from the outside to the peripheral side portion in a subsequent step to fix the substrates to each other.
もちろん第1図(八)において、封止+、I’(19)
、 (19’)は正方形または長方形の基板のコーナ部
のみではなく辺となる部分に対しても同時に滴下し、外
周辺のすべてを液晶のラミネイトと同時に封止をさせて
もよい。Of course, in Figure 1 (8), sealing +, I' (19)
, (19') may be simultaneously dropped not only on the corner portions of a square or rectangular substrate but also on the side portions, and the entire outer periphery may be sealed at the same time as the liquid crystal is laminated.
かくして、本発明のスメクチック液晶の如く、高い粘度
を有する液晶、特にFLCの基板間での充填ラミネート
方法を確立することができた。In this way, we were able to establish a method for filling and laminating liquid crystals having high viscosity, such as the smectic liquid crystal of the present invention, between substrates, especially FLC.
「効果」
かくすることにより、A4版(20cm X 30cm
の面積)1枚で使用する液晶は0.2ccで十分であり
、3000円/gと金より高価な液晶をきわめて有効に
用いることができる。"Effect" By doing so, A4 size (20cm x 30cm
0.2 cc of liquid crystal is sufficient for one sheet (area), and liquid crystal, which is more expensive than gold at 3,000 yen/g, can be used very effectively.
1回の液晶の充填作業を約1時間の短時間で行うことが
できる。One liquid crystal filling operation can be completed in a short time of about one hour.
大面積になっても、作業時間は長くならないという特徴
を有する。It has the characteristic that even if the area is large, the working time does not become long.
即ち、従来より公知のTNt&品の充填作業においては
、この液晶に応力が加わらないようにすることが主であ
る。そのため、周辺部のシール剤はおたがいの基板に外
部より加わり得る圧力が液晶それ自体に加わらないよう
互いの力を支えている。That is, in the conventionally known filling operation for TNt& products, it is important to prevent stress from being applied to the liquid crystal. Therefore, the sealants in the peripheral areas support each other's forces so that pressure that may be applied from the outside to each substrate is not applied to the liquid crystal itself.
しかしスメクチック液晶では、この力が液晶それ自体に
加わってもその粘度が大きく、差し支えないことを本発
明人は見出した。そしてこの特性を利用することにより
従来とはまったく異なる本発明の如き作製方法を可能に
することができた。However, in the case of smectic liquid crystals, the inventors have found that even if this force is applied to the liquid crystal itself, the viscosity thereof is large and there is no problem. By utilizing this characteristic, a manufacturing method such as the present invention, which is completely different from conventional methods, has been made possible.
以上の本発明の液晶の充填方法において、被充填面を構
成する配向処理層を非対称配向処理とし、一方をラビン
グ処理をし、他方を非ラビング処理とする。この時、本
発明の如くラミネイトした後、この基板をラビングを施
した面にそって高温状態等で微動(1メ1以上の1〜1
04 μm)シフトさせ、ストレスを液晶に加え配向せ
しめることは有効である。In the liquid crystal filling method of the present invention described above, the alignment treatment layers constituting the surface to be filled are subjected to an asymmetric alignment treatment, one of which is subjected to a rubbing treatment, and the other is subjected to a non-rubbing treatment. At this time, after laminating as in the present invention, this substrate is subjected to slight movement (1 to 1
It is effective to apply stress to the liquid crystal to align it.
以」二に述べた本発明の液晶表示装置において、この基
板の一方または双方の基板の外側に偏光板を設け1反射
型とする場合は、その入射光側の電極を透光性とし、他
方を反射型電極とする。そしてFLCのチルト角を約4
5度とすることにより、1枚のフィルタを入射光側の基
板」二に配設して実施することができる。In the liquid crystal display device of the present invention described in 2 below, when a polarizing plate is provided on the outside of one or both of the substrates to make it a reflective type, the electrode on the incident light side is made transparent, and the other electrode is made translucent. is a reflective electrode. And the tilt angle of FLC is about 4
By setting the angle to 5 degrees, one filter can be disposed on the substrate on the incident light side.
他方、2枚のフィルタを用いて透過型または反射型とす
る場合は、2枚の偏光板をそれぞれの基板の外側に配向
させ、FLCのチルト角を約22.5度とすることによ
り成就させ得る。透光型においてはバックライトをEL
(エレクトロ・ルミネッセンス)蛍光灯または自然光に
より照射し、透光する光の量を制御することによりディ
スプレイとすることができる。On the other hand, when using two filters to create a transmissive or reflective type, this can be achieved by aligning two polarizing plates on the outside of each substrate and setting the tilt angle of the FLC to about 22.5 degrees. obtain. In the translucent type, the backlight is EL.
(Electroluminescence) A display can be created by irradiating with fluorescent lamps or natural light and controlling the amount of light that passes through.
カラー化する場合は他方の対向基板側(人間の目で見え
る側)の電極の上側または下側にカラーフィルタを設け
ればよい。In the case of colorization, a color filter may be provided above or below the electrode on the other opposing substrate side (the side visible to the human eye).
さらに本発明においては、基板上に非線型素子を配設し
、その上方に電極を設けたものを基板として取扱い、ア
クティブ素子型とすることができる。かかる場合、この
非線型素子としてNIN型等の複合ダイオード構造を有
する5CLAD (空間電荷制限電流型アモルファス半
導体装置)、絶縁ゲイト型電界効果半導体装置を用いる
ことが可能である。Further, in the present invention, a non-linear element arranged on a substrate and an electrode provided above the substrate can be treated as a substrate, and an active element type can be obtained. In such a case, it is possible to use a 5CLAD (space charge limited current type amorphous semiconductor device) or an insulated gate type field effect semiconductor device having a composite diode structure such as an NIN type as the nonlinear element.
本発明の液晶表示装置において、ライトペンを用いたフ
ォトセンザをドツト状に作ることにより表示とその読み
取りとを行うことができる。In the liquid crystal display device of the present invention, display and reading can be performed by forming a dot-shaped photosensor using a light pen.
本発明の第1図の作製工程は100 X100(カラー
においては100 X300)のマトリックス構成とし
た。The manufacturing process shown in FIG. 1 of the present invention has a matrix structure of 100 x 100 (100 x 300 for color).
しかしこのドツト数は640 X400(カラーの場合
は1920 X 400) 、720 X 400その
他の構成をも有し得る。However, this number of dots can also have 640 x 400 (1920 x 400 in color), 720 x 400 and other configurations.
第1図は本発明の液晶表示装置の作製方法を示す。 FIG. 1 shows a method for manufacturing a liquid crystal display device of the present invention.
Claims (1)
して対向せしめ、前記被充填面間に液晶を充填した液晶
表示装置の作製方法において、前記基板の被充填面間に
スメクチック液晶を充填せしめると同時に、前記一対の
基板の周辺部を封止せしめることを特徴とする液晶表示
装置の作製方法。 2、特許請求の範囲第1項において、封止は長方形また
は正方形の基板の少なくともコーナ部に対して行うこと
を特徴とする液晶表示装置の作製方法。 3、電極を互いに有する一対の基板の被充填面を内側に
して対向せしめ、前記被充填面間に液晶を充填した液晶
表示装置の作製方法において、前記基板の被充填面間に
スメクチック液晶を充填せしめると同時に、前記一対の
長方形または正方形の基板のコーナ部を封止せしめる工
程と、該工程の後、長方形または正方形の基板の辺の部
分に対し封止せしめることを特徴とする液晶表示装置の
作製方法。[Scope of Claims] 1. A method for manufacturing a liquid crystal display device in which a pair of substrates having electrodes are placed opposite each other with the surfaces to be filled inside, and liquid crystal is filled between the surfaces to be filled, wherein the surface to be filled of the substrates is A method for manufacturing a liquid crystal display device, comprising filling a space between the substrates with smectic liquid crystal, and simultaneously sealing the peripheral portions of the pair of substrates. 2. The method for manufacturing a liquid crystal display device according to claim 1, wherein the sealing is performed on at least a corner portion of a rectangular or square substrate. 3. A method for manufacturing a liquid crystal display device in which a pair of substrates having electrodes are placed facing each other with the surfaces to be filled inside, and liquid crystal is filled between the surfaces to be filled, wherein smectic liquid crystal is filled between the surfaces to be filled of the substrates. A liquid crystal display device comprising the steps of simultaneously sealing the corner portions of the pair of rectangular or square substrates, and after the step, sealing the side portions of the rectangular or square substrates. Fabrication method.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60155837A JP2535142B2 (en) | 1985-07-15 | 1985-07-15 | Liquid crystal display device manufacturing method |
US06/885,662 US4691995A (en) | 1985-07-15 | 1986-07-15 | Liquid crystal filling device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60155837A JP2535142B2 (en) | 1985-07-15 | 1985-07-15 | Liquid crystal display device manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6254229A true JPS6254229A (en) | 1987-03-09 |
JP2535142B2 JP2535142B2 (en) | 1996-09-18 |
Family
ID=15614579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60155837A Expired - Lifetime JP2535142B2 (en) | 1985-07-15 | 1985-07-15 | Liquid crystal display device manufacturing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2535142B2 (en) |
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