JPS58102205A - Formation of color polarizing plate - Google Patents
Formation of color polarizing plateInfo
- Publication number
- JPS58102205A JPS58102205A JP56201291A JP20129181A JPS58102205A JP S58102205 A JPS58102205 A JP S58102205A JP 56201291 A JP56201291 A JP 56201291A JP 20129181 A JP20129181 A JP 20129181A JP S58102205 A JPS58102205 A JP S58102205A
- Authority
- JP
- Japan
- Prior art keywords
- liq
- crystal
- liquid crystal
- polarizing plate
- crystal composition
- 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
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
Abstract
Description
【発明の詳細な説明】 本発明は、カラー偏光板の新規な作成方法に関する。[Detailed description of the invention] The present invention relates to a novel method for producing a color polarizing plate.
近年、液晶表示素子のカラー化や、カメラのフィルター
等でカラー偏光板の必要性が増加してきている。また、
従来の偏光板はポリビニルアルコールが原料なので、耐
湿性に舞が有った。更に、長時間連続使用可能温度は６
０℃以下であり、短時間使用可能温度でも高に８０℃で
あった。このような欠点の為に、従来のカラー偏光フィ
ルムはその用途が制限されており、耐熱性能及び耐湿性
能の改良が望まれている。In recent years, the need for color polarizing plates has increased due to colorization of liquid crystal display elements, camera filters, and the like. Also,
Conventional polarizing plates are made from polyvinyl alcohol, so their moisture resistance varies. Furthermore, the temperature that can be used continuously for a long time is 6
The temperature was 0°C or lower, and even the temperature at which it could be used for a short time was as high as 80°C. Due to these drawbacks, the uses of conventional color polarizing films are limited, and improvements in heat resistance and moisture resistance are desired.
本発明の目的は、耐湿性及び耐熱性能の良好なカラー偏
光板の作成方法を提供することである。An object of the present invention is to provide a method for producing a color polarizing plate with good moisture resistance and heat resistance.
本発明のカラー偏光板の作成方法は、以下に記するよう
な方法である。The method for producing the color polarizing plate of the present invention is as described below.
液晶形成能を有する基をスベー賃−をはさんでビニル基
につけたビニル七ツマ−は液晶性を示し、この液晶性ビ
ニル七ツマ−を加熱熔融し、液晶状態にして重合させる
と、液晶状節の規則的な構造が保持されたまま重合する
ことが知られている。Vinyl nitrates, in which a group capable of forming liquid crystals is attached to a vinyl group by sandwiching a base metal, exhibit liquid crystallinity. When this liquid crystalline vinyl nitrate is heated and melted to form a liquid crystal state and polymerize, it forms a liquid crystal. It is known that polymerization occurs while maintaining the regular structure of the nodes.
（第２３同高分子討論金（東京）（１９７４年））この
ような液晶ビニル七ツマ−には次のような構造のメタク
リレートが知られている（ Ｍａｋｒｏｍｏｌ＊ Ｏｈ
＠ ｗｌｌ ７９ ＊ ２７５ ２７６ （１９７８
） ） ＊このような液晶ビニルモノマーに、分子軸方
向に遷移モーメントを有する、いわゆるＰタイプの二色
性色素を添加し、更に必要ならば重合開始剤（たとえば
、アゾビスイソブチ四ニトリルや、過階化ベンゾイル等
のラジカル重合開始剤）を触媒量添加する。ｔた、二枚
のネサガラス板を同方向にラビング等の処理をして、同
方向の一軸水平配向を施す。この二枚のネサガラス板を
スペーサーをかいして一軸水平配向セルを形成する。こ
のセルに上記の液晶組成物を封入する。このセルを加熱
して液晶状態をとらせ、セルに電場をかけ、液晶組成物
をセルに対して一軸的に水平配向させる。(23rd Polymer Symposium (Tokyo) (1974)) Methacrylate with the following structure is known for such liquid crystal vinyl nitrates (Makromol* Oh
@ wll 79 * 275 276 (1978
) *To such a liquid crystal vinyl monomer, a so-called P-type dichroic dye having a transition moment in the direction of the molecular axis is added, and if necessary, a polymerization initiator (for example, azobisisobutytetranitrile or A catalytic amount of a radical polymerization initiator (such as benzoyl) is added. Additionally, the two Nesa glass plates are subjected to a treatment such as rubbing in the same direction to achieve uniaxial horizontal alignment in the same direction. These two Nesa glass plates are interposed with a spacer to form a uniaxial horizontally oriented cell. The above liquid crystal composition is sealed in this cell. This cell is heated to assume a liquid crystal state, and an electric field is applied to the cell to align the liquid crystal composition uniaxially and horizontally with respect to the cell.
この状態で、重合を行ない液晶組成物はフィルム状にな
る。このフィルムは、−軸的に水平」向した状態が保持
されており、それと同時に、二色性色素も一軸的に水平
配向している。従って、このフィルムは偏光性を有する
。このフィルムは二色性色素の色を呈するので、カラー
偏光板となる。In this state, polymerization occurs and the liquid crystal composition becomes a film. This film is maintained in a -axially horizontal orientation, and at the same time, the dichroic dye is also uniaxially horizontally oriented. Therefore, this film has polarizing properties. Since this film exhibits the color of the dichroic dye, it becomes a color polarizing plate.
上記のようにして作成されたフィルムから、ガラスセル
を除けば、このフィルムがとり出せ、以上の操作でカラ
ー偏光板が作成される。The film produced as described above can be taken out by removing the glass cells, and a color polarizing plate is produced by the above operations.
このようにして作成されたカラー偏光板は、従来のｌリ
ビ二ルアルコールでできているカラー偏光板と違って、
耐湿性、耐熱性共に非常によく改良される。The color polarizing plate created in this way is different from the conventional color polarizing plate made of l-libinyl alcohol.
Both moisture resistance and heat resistance are greatly improved.
以下、実施例に従い本発明の詳細な説明する。Hereinafter, the present invention will be explained in detail according to Examples.
実施例ｔ
Ｍａｋｒｏｍｏｌ、Ｏｈｓｍ、１７９，２７５−２７６
（１９７８）記載の方法で、下記の構造のメタクリレ−
）（液晶ビニルモノマー）（以下６−１ＭＡと略する）
を合成した。Example t Makromol, Ohsm, 179, 275-276
(1978), a methacrylate of the following structure was prepared.
) (liquid crystal vinyl monomer) (hereinafter abbreviated as 6-1MA)
was synthesized.
（６−ＩＭＡ）
６−ＩＭＡの融点は１０８℃で、透明点は２１１℃であ
また。(6-IMA) The melting point of 6-IMA is 108°C and the clearing point is 211°C.
また、Ｐタイプの二色性色素である下記構造の二色性色
素Ｄ−５５（１８部を４− Ｉ Ｍ ｋ ９９．１部に
加え、更にアゾビスイソブチロニトリル０．１部を加え
た。In addition, dichroic dye D-55 (18 parts with the following structure, which is a P-type dichroic dye, was added to 99.1 parts of 4-IM k, and 0.1 part of azobisisobutyronitrile was added. Ta.
以上で得た液晶組成物は１２０℃から２０．６℃の範囲
でネマチック層を呈する。The liquid crystal composition obtained above exhibits a nematic layer in the range of 120°C to 20.6°C.
また、ラビングにより一軸性の水平配向処理を施した厚
み５０μ慣のネサガラスセルを用意した。Further, a Nesa glass cell having a thickness of 50 μm and subjected to a uniaxial horizontal alignment treatment by rubbing was prepared.
このセルに上記の液晶組成物を封入し、１５０℃に加熱
しながら、セルの両極に１００ｖの電圧を印加した。こ
の状態で５時間放置すると、液晶組成物は重合した。室
温まで冷却し、電圧の印加を停止し、注意深く、セルを
液晶組成物の重合物からはがした。The above liquid crystal composition was sealed in this cell, and a voltage of 100 V was applied to both poles of the cell while heating it to 150°C. When left in this state for 5 hours, the liquid crystal composition was polymerized. After cooling to room temperature, the application of voltage was stopped, and the cell was carefully peeled off from the polymerized liquid crystal composition.
以上で得た液晶組成物の重合物はフィルム状であり、赤
紫色であり、偏光性を有していた。The polymerized liquid crystal composition obtained above was film-like, reddish-purple in color, and had polarizing properties.
このようにして、赤紫色のカラー偏光板が作成できた。In this way, a reddish-purple color polarizing plate was created.
また、このカラー偏光板は耐湿性、耐熱性共にすぐれて
いた。Additionally, this color polarizing plate had excellent moisture resistance and heat resistance.
以上の方法によりて得られるカラー偏光板４ｉ、耐浸性
、耐熱性共に、従来のものよりすぐれており、この長所
を生かした応用が多いと考えられる。The color polarizing plate 4i obtained by the above method has both immersion resistance and heat resistance superior to conventional ones, and it is thought that there are many applications that take advantage of these advantages.
以 上 出願人 株式金社諏訪精工舎 代理人 弁理士 鏝上 務that's all Applicant: Kinsha Suwa Seikosha Co., Ltd. Agent Patent attorney
Claims (1)
タイプの二色性色素を、ネマチック層をｉする液晶ビニ
ルモノマーに溶解し、この液晶組成物をラビング等の処
理によって一軸的な水平配向を施したネサガフメセル中
に封入□し、更に、液晶を呈する温度にコントロールし
、セルに対して垂直方向に電場をかけて、液晶組成物を
一軸的に水平配向させ、この状態で紫外線や、太陽光を
照射し、液晶ビニルモノマーを重合させフィルム状にし
、セルをこのフィルムより取りはずすことを特徴とした
カラー偏光板の作成方法。 ２）前記液晶組成物中に、重合開始剤を触媒量添加した
特許請求の範囲第１項記載のカラー偏光板の作成方法。[Claims] 1) So-called P having a transition moment in the molecular axis direction
A type of dichroic dye is dissolved in a liquid crystal vinyl monomer that forms a nematic layer, and this liquid crystal composition is encapsulated in a Nesagafume cell that has been uniaxially horizontally aligned by a treatment such as rubbing, and is further made to exhibit liquid crystal. By controlling the temperature and applying an electric field perpendicularly to the cell, the liquid crystal composition is uniaxially horizontally aligned, and in this state it is irradiated with ultraviolet rays or sunlight to polymerize the liquid crystal vinyl monomer and form it into a film. A method for producing a color polarizing plate characterized by removing cells from this film. 2) The method for producing a color polarizing plate according to claim 1, wherein a catalytic amount of a polymerization initiator is added to the liquid crystal composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56201291A JPS58102205A (en) | 1981-12-14 | 1981-12-14 | Formation of color polarizing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56201291A JPS58102205A (en) | 1981-12-14 | 1981-12-14 | Formation of color polarizing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58102205A true JPS58102205A (en) | 1983-06-17 |
Family
ID=16438538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56201291A Pending JPS58102205A (en) | 1981-12-14 | 1981-12-14 | Formation of color polarizing plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58102205A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61203409A (en) * | 1985-03-05 | 1986-09-09 | Matsushita Electric Ind Co Ltd | Production of polarizing filter |
| JPS6271905A (en) * | 1985-09-26 | 1987-04-02 | Fuji Photo Film Co Ltd | Formation of oriented film |
| JPH01163726A (en) * | 1987-12-19 | 1989-06-28 | Fujitsu Ltd | Production of electrooptic element |
| US5863457A (en) * | 1993-12-24 | 1999-01-26 | Dainippon Ink And Chemicals, Inc. | Polymerizable liquid crystal composition and optically anisotropic film comprising the same |
-
1981
- 1981-12-14 JP JP56201291A patent/JPS58102205A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61203409A (en) * | 1985-03-05 | 1986-09-09 | Matsushita Electric Ind Co Ltd | Production of polarizing filter |
| JPS6271905A (en) * | 1985-09-26 | 1987-04-02 | Fuji Photo Film Co Ltd | Formation of oriented film |
| JPH0769490B2 (en) * | 1985-09-26 | 1995-07-31 | 富士写真フイルム株式会社 | How to make an alignment film |
| JPH01163726A (en) * | 1987-12-19 | 1989-06-28 | Fujitsu Ltd | Production of electrooptic element |
| US5863457A (en) * | 1993-12-24 | 1999-01-26 | Dainippon Ink And Chemicals, Inc. | Polymerizable liquid crystal composition and optically anisotropic film comprising the same |
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