JPS60182415A - Liquid crystal display element - Google Patents
Liquid crystal display elementInfo
- Publication number
- JPS60182415A JPS60182415A JP4073384A JP4073384A JPS60182415A JP S60182415 A JPS60182415 A JP S60182415A JP 4073384 A JP4073384 A JP 4073384A JP 4073384 A JP4073384 A JP 4073384A JP S60182415 A JPS60182415 A JP S60182415A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- display element
- sealant
- plastic film
- 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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
Description
【発明の詳細な説明】
く技術分野〉
本発明は基板としてプラスチックフィルムを用いた液晶
表示素子に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a liquid crystal display element using a plastic film as a substrate.
〈従来技術〉
従来、液晶表示素子は一般的にガラス基板上に酸化スズ
、酸化インジウム等から々る電極パターンを形成し５更
にその上に液晶を配向せしめる金属酸化膜（例えば５ｉ
Ｏ２）あるいは有機高分子膜（ポリイミド膜）を形成し
てなる基板を２枚対向させ、この間隙に液晶を固定保持
し２周辺部をシール材にて封止したものである。又２枚
の偏光板を液晶表示素子を挾持する様に配置して表示装
置が構成されるものである。一方、近年ガラス基板の替
りにプラスチックフィルムを基板として使用した液晶表
示素子がある。このプラスチックフィル−ルムはガラス
と比べて耐湿性、耐熱性、旋光性。<Prior art> Conventionally, a liquid crystal display element generally consists of an electrode pattern made of tin oxide, indium oxide, etc. formed on a glass substrate, and then a metal oxide film (e.g. 5i) on which the liquid crystal is aligned.
Two substrates formed with O2) or an organic polymer film (polyimide film) are placed facing each other, a liquid crystal is fixedly held in the gap, and the peripheral portions of the two are sealed with a sealing material. Further, a display device is constructed by arranging two polarizing plates to sandwich a liquid crystal display element. On the other hand, in recent years, there have been liquid crystal display devices that use plastic films as substrates instead of glass substrates. This plastic film has better moisture resistance, heat resistance, and optical rotation than glass.
耐液晶性、耐溶剤性、耐擦傷性の点て劣る他、他材料と
の接着性に劣る為、液晶表示素子の構成材料は、ガラス
の液晶表示素子と比べ異なるものが使われている。この
中で特に基板間周辺に位置するシール材の材質は２枚の
プラスチックフィルム基板を接着固定させるとともに、
液晶表示素子内の気密性を保つのに重要である。しかし
、一般にプラスチックフィル・ム同志の接着に優れたシ
ール材は少なり。プラスチックフィルム間の接着に多く
用いられているのがシリコーン樹脂系の接着剤であるが
、これとても接着性で充分とは言えず。Because they have poor liquid crystal resistance, solvent resistance, and scratch resistance, as well as poor adhesion to other materials, different constituent materials are used for liquid crystal display elements compared to glass liquid crystal display elements. Among these, the material of the sealing material located around the area between the substrates is particularly important for adhesively fixing the two plastic film substrates together.
This is important for maintaining airtightness within the liquid crystal display element. However, in general, there are few sealants that have excellent adhesion between plastic films. Silicone resin adhesives are often used to bond plastic films together, but they have very poor adhesive properties.
耐溶剤性、耐液晶性、耐湿性が不十分であるという問題
があった。この為、シリコーン樹脂系の接着剤をシール
材として用いて液晶表示素子を構成した場合液晶表示素
子自体の実用上の信頼性を確保することが出来なかった
。There was a problem that solvent resistance, liquid crystal resistance, and moisture resistance were insufficient. For this reason, when a liquid crystal display element is constructed using a silicone resin adhesive as a sealing material, the practical reliability of the liquid crystal display element itself cannot be ensured.
く目 的〉
本発明はこのような問題に鑑みなされたものであり、プ
ラスチックフィルム基板との接着性に優れ、且つ、耐溶
剤性、耐液晶性、耐湿性に優れた新規々シール材を用い
ることにより、実用に耐え得るプラスチックフィルム液
晶表示素子を提供することにある。Purpose The present invention was made in view of these problems, and uses a new sealing material that has excellent adhesiveness to plastic film substrates, and also has excellent solvent resistance, liquid crystal resistance, and moisture resistance. The object of the present invention is to provide a plastic film liquid crystal display element that can withstand practical use.
〈実施例〉
以下、木発明に係る液晶表示素子の一実施例について詳
細に説明を行なう。<Example> Hereinafter, an example of the liquid crystal display element according to the invention will be described in detail.
図面は本発明に係る液晶表示素子の一実施例の側面断面
図を示す。同図で１．ＩＩｉ偏光板、２゜２はフェノキ
シエーテル型重合体から形成された厚み１００ ＩＩｍ
のプラスチックフィルム基板、３．３は透明導電膜、４
．４は配向膜、５は後述する材料によってなるシール材
、６は液晶である。The drawing shows a side sectional view of one embodiment of a liquid crystal display element according to the present invention. In the same figure, 1. IIi polarizing plate, 2゜2 is made of phenoxy ether type polymer and has a thickness of 100 IIm.
3.3 is a transparent conductive film; 4 is a plastic film substrate;
．． 4 is an alignment film, 5 is a sealing material made of a material to be described later, and 6 is a liquid crystal.
上記シール材５の材料として次の２種類のポリーマーブ
レンドを作製した。The following two types of polymer blends were prepared as materials for the sealing material 5.
■ エポキシ系接着剤（長瀬チバ■製アラルダイ）ＸＮ
−１２４４）に対してブチルメチロールメラミン系コー
ティング剤（奇人化成■Ｎ５Ｎ−６７）を粘度調整した
後混合したポリマーブレンド。■ Epoxy adhesive (Araldai made by Nagase Chiba) XN
-1244) and a butyl methylol melamine coating agent (Kijin Kasei N5N-67) after adjusting the viscosity.
■ エポキシ系接着剤（■アルファ技術研究所製アルテ
コ３０００）に対してブチルメチロールメラミン系コー
ティング剤（奇人化成■製５Ｎ−６７）を粘度調整した
後混合したポリマーブレンド。■ A polymer blend in which a butyl methylol melamine coating agent (5N-67, manufactured by Kijin Kasei ■) was mixed with an epoxy adhesive (■ Arteco 3000, manufactured by Alpha Technical Institute) after adjusting the viscosity.
この２種類のポリマーフレンドをシール材として一方の
プラスチックフィルム基板にスクリーン印刷し、他方の
プラスチックフィルム基板に電極転移材を形成した後ス
ペーサを散布して両基板を貼合せ１２０℃で約１時間焼
成して互いにシール材の異なる２種類の液晶表示素子を
形成した。上記■、■のシール材によって形成した液晶
表示素子を夫々サンプル■、サンプル■とする。These two types of polymer friends are screen printed on one plastic film substrate as a sealing material, and after forming an electrode transfer material on the other plastic film substrate, spacers are sprinkled, both substrates are bonded, and baked at 120°C for about 1 hour. Two types of liquid crystal display elements using different sealing materials were thus formed. Liquid crystal display elements formed using the sealing materials (2) and (2) above are referred to as sample (2) and sample (2), respectively.
次にこの２種類の液晶表示素子に対してプラス暮゛ツク
フィルム基板の引き剥がし試験を行々ったところ次表に
示す結果を得た。Next, a peel test of the positive black film substrate was performed on these two types of liquid crystal display elements, and the results shown in the following table were obtained.
尚、比較例として■′エポキシ系接接着剤１長瀬チバ■
製アラルダイ） ＸＮ−１２４４）、■エポキシ系接着
剤（■アルリファ技術研究所製アルテコ３０００）をシ
ール材５として用いてＪＴ９成した２種の液晶表示素子
（夫々サンプル■′、サンプル■′とする。）について
も引き剥がし試験を行なった０表
この表によって判るように本発明のサンプルの。As a comparative example, ■'Epoxy adhesive 1 Nagase Chiba■
Two types of liquid crystal display elements (referred to as sample ■' and sample ■', respectively) were prepared using JT9 using an epoxy adhesive (■ Arteco 3000 manufactured by Alrifa Technology Laboratory) as the sealing material 5. As can be seen from this table, a peel test was also conducted on the sample of the present invention.
■は接着性が良好であった。ここで本発明によるサンプ
ル■４■では基板とシール材の接着性力；強の為に引き
剥がしによって基板の方が割れた力；、従来構造のサン
プル■′、■′では基板とシール材の接着性か弱い為に
引き剥がしによって基板とシール材の界面部分で剥離が
生じた。(2) had good adhesion. Here, in sample ■4■ according to the present invention, the adhesive strength between the substrate and the sealant was strong, so the force that caused the substrate to break when peeled off was stronger, and in the samples ■' and ■' with conventional structures, the adhesive force between the substrate and the sealant was stronger. Due to the weak adhesion, peeling occurred at the interface between the substrate and the sealant.
尚、上記本発明によるサンプル■、■を５５°Ｃ９５％
Ｒ，Ｈ，の放電雰囲気中に２４０時間放置したところ液
晶の配向性は初期と変わらず長女子であった。In addition, the samples ① and ② according to the present invention were heated at 55°C and 95%.
When the sample was left in an R, H, discharge atmosphere for 240 hours, the orientation of the liquid crystal remained unchanged from the initial state.
く効 果〉
以上の本発明によればプラスチ・ツクフィルム基板とシ
ール材との間の接着を強固にできる為液晶表示素子の気
密性、耐湿性を向上させること力・でき、液晶の劣化に
よる消費電流値の増加等の電気光学的特性の劣化を防止
すると共に液晶配向の劣化を防止して表示品位を向上さ
せることカニできるものである。又シール材の耐溶剤性
、耐液晶性カニ優れているので液晶表示素子の作製上の
作業性を向上でき、更に液晶表示素子の信頼性を向上さ
せることができるものである。Effects> According to the present invention, the adhesion between the plastic film substrate and the sealing material can be strengthened, so the airtightness and moisture resistance of the liquid crystal display element can be improved, and it is possible to improve the airtightness and moisture resistance of the liquid crystal display element. It is possible to prevent deterioration of electro-optical characteristics such as an increase in current consumption value, and also to prevent deterioration of liquid crystal alignment and improve display quality. Furthermore, since the sealing material has excellent solvent resistance and liquid crystal resistance, it is possible to improve the workability in manufacturing a liquid crystal display element, and further improve the reliability of the liquid crystal display element.
図面は木発明に係る液晶表示素子の一実施ｆｌｊの沖ｊ
、面断面図を示す。
１ｆｆｌｃｌ］、に偏光板、２ニブラスチツクフイルム
基板２３：透明導電膜、４：配向膜、
５：シール祠、６：液晶
代理人 弁理士 福 士 愛 彦（他２名）手続補正書
昭和５９年４ 月２Ｊ日
２、発明の名称
液晶表示素子
３、補正をする者
事件との関係 特許出願人
住 所 ８５４５大阪市阿倍野区長池町２２番２２号以
上The drawing is an example of an implementation of the liquid crystal display device according to the invention.
, showing a cross-sectional view. 1 fflcl], polarizing plate, 2 Niblast stick film substrate 23: transparent conductive film, 4: alignment film, 5: seal shrine, 6: liquid crystal agent, patent attorney Yoshihiko Fukushi (and 2 others) procedural amendment document 1982 April 2J, 2013, Name of the invention: Liquid crystal display element 3, Relationship to the case of the person making the amendment Patent applicant address: 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, 8545 or above
Claims (1)
てなる液晶表示素子において、エポキシ樹脂等のシー°
ル用樹脂材にメラミン樹脂を混合してなるポリマーブレ
ンドをシール材として用いたことを特徴とする液晶表示
素子。1. In a liquid crystal display element in which liquid crystal is filled between two plastic film substrates, a sheet of epoxy resin etc.
A liquid crystal display element characterized in that a polymer blend made by mixing a melamine resin with a resin material for liquid crystal display is used as a sealing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4073384A JPS60182415A (en) | 1984-02-29 | 1984-02-29 | Liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4073384A JPS60182415A (en) | 1984-02-29 | 1984-02-29 | Liquid crystal display element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60182415A true JPS60182415A (en) | 1985-09-18 |
Family
ID=12588831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4073384A Pending JPS60182415A (en) | 1984-02-29 | 1984-02-29 | Liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60182415A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5672417A (en) * | 1979-11-16 | 1981-06-16 | Ricoh Elemex Corp | Liquid crystal display unit and its manufacture |
| JPS57181527A (en) * | 1981-05-01 | 1982-11-09 | Ricoh Co Ltd | Liquid crystal display device |
-
1984
- 1984-02-29 JP JP4073384A patent/JPS60182415A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5672417A (en) * | 1979-11-16 | 1981-06-16 | Ricoh Elemex Corp | Liquid crystal display unit and its manufacture |
| JPS57181527A (en) * | 1981-05-01 | 1982-11-09 | Ricoh Co Ltd | Liquid crystal display device |
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