JPH01205126A - Liquid crystal display body - Google Patents
Liquid crystal display bodyInfo
- Publication number
- JPH01205126A JPH01205126A JP3028288A JP3028288A JPH01205126A JP H01205126 A JPH01205126 A JP H01205126A JP 3028288 A JP3028288 A JP 3028288A JP 3028288 A JP3028288 A JP 3028288A JP H01205126 A JPH01205126 A JP H01205126A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- films
- electret
- electrodes
- crystal molecules
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 26
- 239000000758 substrate Substances 0.000 abstract description 6
- 239000011521 glass Substances 0.000 abstract description 4
- 229920000642 polymer Polymers 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 239000003989 dielectric material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 abstract description 2
- 229910002113 barium titanate Inorganic materials 0.000 abstract description 2
- 235000013869 carnauba wax Nutrition 0.000 abstract description 2
- 239000004203 carnauba wax Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract description 2
- 238000001259 photo etching Methods 0.000 abstract description 2
- 238000004544 sputter deposition Methods 0.000 abstract description 2
- 238000007740 vapor deposition Methods 0.000 abstract description 2
- 239000002033 PVDF binder Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 abstract 1
- 230000003993 interaction Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 230000005684 electric field Effects 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 239000005262 ferroelectric liquid crystals (FLCs) Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は液晶表示体の電極表面処理膜に関する〔従来の
技術〕
液晶は外から電圧（電界）を加えると分子の向きが変わ
って光を通したり、通さなかったりする。この性質を利
用して液晶を電極板と偏光板ではさみ、電卓などの表示
板として使っている。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electrode surface treatment film of a liquid crystal display [Prior Art] When a voltage (electric field) is applied from the outside, the orientation of the molecules of liquid crystals changes and light is emitted. It may or may not pass. Taking advantage of this property, liquid crystals are sandwiched between electrode plates and polarizing plates and used as display panels in calculators and other devices.
従来技術では液晶分子をはさむ′ｄ！極基板のすき間を
極端に薄くすることで、分子を一定方向に配列させてい
た。すき間を厚くすると液晶分子の配列がバラバラにな
り、きれいな画像が表示できず、これが大画面化の大き
な障害になっていた。小型液晶テ【／ビに使っている液
晶は、ネマティック液晶と呼ばれ大型化するにと電圧変
化に分子配列の変化が追いつかなくなるため用途が限ら
れていた。In the conventional technology, liquid crystal molecules are sandwiched between 'd! By making the gap between the polar substrates extremely thin, the molecules were aligned in a fixed direction. When the gap was made thicker, the arrangement of liquid crystal molecules became disorganized, making it impossible to display a clear image, which was a major obstacle to making the screen larger. The liquid crystal used in small LCD TVs is called nematic liquid crystal, and as the size increases, changes in molecular arrangement cannot keep up with changes in voltage, so its uses are limited.
液晶で大画面の動画面の動画表示装置を実施するには、
電圧変化に素早く反応する強誘電性液晶を使うのが最適
とされている。ただ、強誘電性液晶では表示装置を作る
のに必要な、液晶分子の一定方向への配列を実現するこ
とが難しいとされていた。To implement a video display device with a large LCD video screen,
It is considered optimal to use ferroelectric liquid crystals, which respond quickly to voltage changes. However, with ferroelectric liquid crystals, it has been considered difficult to align liquid crystal molecules in a certain direction, which is necessary to create display devices.
本発明は、液晶をはさむ電極基板表面に特殊な処理を施
すことにより、この一定方向での配列を実現する事を目
的としている。The present invention aims to achieve this alignment in a certain direction by applying special treatment to the surfaces of the electrode substrates that sandwich the liquid crystal.
上記問題点を解決するために、本発明は液晶表示体に関
し、液晶を挾′ｂ電極表面にエレクトレット膜又は強誘
電体膜を形成する手段をとる事を基本とする。In order to solve the above-mentioned problems, the present invention relates to a liquid crystal display body, and is based on a method of forming an electret film or a ferroelectric film on the surface of the electrode between which the liquid crystal is sandwiched.
エレクトレット膜又は強誘電体膜による自発分極あるい
は分極による電界が液晶の配列を一定方向にそろえる作
用があり、電極基板からの電界により一定方向にそろっ
た液晶の配列を変化させることにより表示作用をもたせ
ることができる。The electric field caused by spontaneous polarization or polarization by the electret film or ferroelectric film has the effect of aligning the liquid crystals in a certain direction, and by changing the alignment of the liquid crystals in a certain direction by the electric field from the electrode substrate, it provides a display effect. be able to.
以下、実施例により本発明を詳述する。 Hereinafter, the present invention will be explained in detail with reference to Examples.
第１図は、本発明の一笑施例な示す液晶表示体の要部の
断面の模式図であり、第２図は本発明の作用を明確に示
す為に、比較の為に示した従来技術による液晶表示体の
要部の断面の模式図であるすなわち、ガラス基板１及び
１１０表面にＸ−Ｙマトリックス伏に工Ｔｏ（インジウ
ム・錫酸化物）ｉ１！極２及び１２を蒸着法等で形成後
、ホトエッチによりパターンニングするのは本発明と従
来技術とは同等であるが、これら工ＴＯ電極表面に従来
技術では塗布ガラス膜（３１０，膜）やポリイミド膜等
から成る誘電率の低い（を中３）絶縁性の誘電体膜１３
を形成するのに対し、本発明では、チタン酸バリウム等
の無機性強誘電体の場合はスパッタ法で、あるいはカル
ナバ・ワックスやポリ７ツ化ピリニデンに代表される高
分子エレクトレットや高分子誘電体から成る膜を形成す
る場合には塗布法等によりエレクトレット膜３を形成す
る。従来技術による誘電体［１５による工Ｔ。FIG. 1 is a schematic cross-sectional view of a main part of a liquid crystal display showing a simple embodiment of the present invention, and FIG. 2 is a conventional art shown for comparison in order to clearly show the effect of the present invention. 1 is a schematic cross-sectional view of the main parts of a liquid crystal display according to the method, in which an X-Y matrix is formed on the surfaces of glass substrates 1 and 110 (indium/tin oxide) i1! The present invention and the prior art are equivalent in that the electrodes 2 and 12 are formed by vapor deposition or the like and then patterned by photoetching, but in the prior art, the surface of these TO electrodes is coated with glass film (310, film) or polyimide. An insulating dielectric film 13 with a low dielectric constant (medium 3) consisting of a film, etc.
In contrast, in the present invention, inorganic ferroelectrics such as barium titanate are formed by sputtering, or polymer electrets and polymer dielectrics such as carnauba wax and pyrinidene poly7tide are formed. When forming a film consisting of electret film 3, the electret film 3 is formed by a coating method or the like. Dielectric materials according to the prior art [15]
電極１２の表面処理では、液晶分子１４は欠陥のある状
態で配列しているのに対し、本発明によるエレクトレッ
ト膜５による工Ｔ Ｏ’ｆｉｇ 極２の表面処理では、
液晶分子４がエレクトレット膜３とうまく相互作用して
きれいに配列し、欠陥の少ない画像表示ができる状態と
なる。In the surface treatment of the electrode 12, the liquid crystal molecules 14 are arranged in a defective state, whereas in the surface treatment of the electrode 2 using the electret film 5 according to the present invention,
The liquid crystal molecules 4 interact well with the electret film 3 and are arranged neatly, making it possible to display images with fewer defects.
本発明の結果、従来２ミクロン以下の薄さが必要であっ
た液晶の厚さを１０ミクロン以上にしてもうまく機能し
、欠陥のないきれいな画像が表示できるようになり、大
画面化も容易となった効果がある。As a result of the present invention, the thickness of the liquid crystal, which conventionally required a thickness of 2 microns or less, can now be increased to 10 microns or more and still function well, displaying clear images without defects, and making it easier to make larger screens. There is an effect that
第１図は本発明による液晶表示体の要部の断面の模式図
を、第２図は従来技術による液晶堀示体の要部の断面の
模式図を示す。
１．１１・・・・・・ガラス基板
２．１２・・・・・・工ＴＯ電極
５・・・・・・・・・・・・・・・エレクトレット膜１
５・・・・・・・・・・・・誘電体膜４．１４・・・・
・・液晶分子
以上
出願人 セイコーエプソン株式会社
代理人 弁理士最上務（他１名）FIG. 1 is a schematic cross-sectional view of a main part of a liquid crystal display according to the present invention, and FIG. 2 is a schematic cross-sectional view of a main part of a liquid crystal display according to the prior art. 1.11... Glass substrate 2.12... TO electrode 5... Electret film 1
5......Dielectric film 4.14...
...Liquid crystal molecules and above Applicant Seiko Epson Co., Ltd. Representative Patent Attorney Mogami (1 other person)
Claims (1)
電体膜が形成されて成る事を特徴とする液晶表示体。A liquid crystal display characterized in that an electret film or a ferroelectric film is formed on the surfaces of electrodes that sandwich a liquid crystal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3028288A JPH01205126A (en) | 1988-02-12 | 1988-02-12 | Liquid crystal display body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3028288A JPH01205126A (en) | 1988-02-12 | 1988-02-12 | Liquid crystal display body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01205126A true JPH01205126A (en) | 1989-08-17 |
Family
ID=12299364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3028288A Pending JPH01205126A (en) | 1988-02-12 | 1988-02-12 | Liquid crystal display body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01205126A (en) |
-
1988
- 1988-02-12 JP JP3028288A patent/JPH01205126A/en active Pending
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