JPS62194231A - Liquid crystal driving device - Google Patents
Liquid crystal driving deviceInfo
- Publication number
- JPS62194231A JPS62194231A JP3573886A JP3573886A JPS62194231A JP S62194231 A JPS62194231 A JP S62194231A JP 3573886 A JP3573886 A JP 3573886A JP 3573886 A JP3573886 A JP 3573886A JP S62194231 A JPS62194231 A JP S62194231A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- glass substrate
- transparent electrode
- electric field
- insulating 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 44
- 239000011521 glass Substances 0.000 claims abstract description 36
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 230000005684 electric field Effects 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001419 dependent effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 239000004990 Smectic liquid crystal Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000005262 ferroelectric liquid crystals (FLCs) Substances 0.000 description 2
- 229910003437 indium oxide Inorganic materials 0.000 description 2
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- 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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
-
- 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/141—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent using ferroelectric liquid crystals
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は表示素子などに用いる液晶１枢搏・装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid crystal display device used in display elements and the like.
本発明＃−ｉ表示素子などに用いる液晶駆動装置におい
て、ガラス基盤に対して横方向電界を作り。In the liquid crystal drive device used in the #-i display element of the present invention, a lateral electric field is created with respect to the glass substrate.
一方のガラス基盤上の透明電極な二Ｉｉ＋＋構造にし、
長分子方向に対して垂直に永久双季子モーメントを有す
る液晶分子？用いることＫより、液晶分子の高速応答効
果シ得るものである。A two-Ii++ structure with a transparent electrode on one glass substrate,
A liquid crystal molecule with a permanent twin moment perpendicular to the long molecule direction? By using K, a high-speed response effect of liquid crystal molecules can be obtained.
従来、液晶表示装置の構造に関しては数多くの提案ｈ；
なされ、改良ｈ；加えられている。Conventionally, there have been many proposals regarding the structure of liquid crystal display devices.
Improvements have been made and additions have been made.
例憂ば、ｖａｔ、 ａｒｙｓｔ、 ｘｒｉｑ、 ｃｒｙ
ｓｔ、 、 １９８３． ＶＯｌ、 ９４ＰＰ、 ２
１３−２５４ には第２図にあるように、ガラス基盤
１２上に透明電極８が蒸着され、その上に絶ＪｉＭＩＩ
９を有する二枚のガラス基盤圧対して平行になるよ′５
にはさ入、ガラス基盤上に形成され之一対の透明？を極
８に電圧な印加する事により、ガラス基盤に対して垂直
方向に電界を発生させ、液晶分子の配向方向な変化させ
る液晶駆動装着が提案されている。Example: vat, aryst, xriq, cry
st, , 1983. VOl, 94PP, 2
13-254, as shown in FIG.
It will be parallel to the two glass substrates with a pressure of 9'5
A pair of transparent inserts formed on a glass base? A liquid crystal drive mounting has been proposed in which an electric field is generated in a direction perpendicular to the glass substrate by applying a voltage to the pole 8, thereby changing the alignment direction of liquid crystal molecules.
〔発明ｈ；解決しよ５とする問題点〕
しかし、前述の従来の技術は電界を印加する為のガラス
基盤上に蒸着され定透明電極は一層構造の為、ガラス基
盤に対して垂直な電界、すなわち分子軸方向に対して垂
直方向に永久双極子モーメントシ有する液晶分子に対し
ては永久双極子モーメントに対して１８０度方向く電界
？へ、液晶分子の応答性？向上させる為には印加電界？
増すか、永久双極子モーメントの大羨な液晶材料を開発
する必要／ｌ”−ある。[Invention h: Problem to be solved in Section 5] However, in the above-mentioned conventional technology, since the constant transparent electrode is deposited on a glass substrate for applying an electric field and has a single layer structure, the electric field perpendicular to the glass substrate is , that is, for liquid crystal molecules that have a permanent dipole moment perpendicular to the molecular axis direction, is the electric field oriented 180 degrees with respect to the permanent dipole moment? What about the responsiveness of liquid crystal molecules? Applied electric field to improve?
There is a need to develop a liquid crystal material with an enviable permanent dipole moment.
本発明は、このような液晶運動装置の問題点シ解決する
もので、その目的とするところはより液晶分子の高速応
答が可能であり、より高性能な液晶運動装漿？提供する
ところにある。The present invention solves these problems with liquid crystal motion devices, and its purpose is to provide a liquid crystal motion device with higher performance by enabling faster response of liquid crystal molecules. It's there to provide.
Ｆ記問題点な解決する几めに、本発明の液晶運動装置は
、一対のガラス基盤の一方に第一透明電極？有し、前記
透明電極上に第−絶＃ｌｌＩ！８−有し。In order to solve the problem mentioned above, the liquid crystal motion device of the present invention includes a first transparent electrode on one of a pair of glass substrates. and the first #llI! on the transparent electrode. 8- Yes.
前記絶縁稟上に第二透明電極な有し、前記第二絶縁膜な
有し、仙方のガラス基盤上ｆけ、前記填−透明電極及び
第−絶縁喚シ有し、液晶分子の長分子軸に対して垂直方
向に永久双極子モーメン）Ｉｋ有する液晶分子な前記ガ
ラス基盤間にはさ入込んだことな特徴とする。A second transparent electrode is provided on the insulating layer, a second insulating film is provided on the glass substrate, the filling transparent electrode and a second insulating layer are provided, and long molecules of liquid crystal molecules Liquid crystal molecules having a permanent dipole moment (Ik) perpendicular to the axis are sandwiched between the glass substrates.
竿１図は本発明の実施例にかける液晶駆動装置の断面図
である。Figure 1 is a sectional view of a liquid crystal driving device according to an embodiment of the present invention.
まず、ガラス基盤（Ａ）１上に軍−透明２として、例え
ば酸化インジウムｌ１ｌ（工Ｔｏ膜）を３０ｏＡａ度蒸
着する。さらに、その上に’？ＩＬ−絶縁＠３として例
えば、ポリビニールアルコール（ｐｖＡ）＋５ｏｏＡｓ
度形成させる。次Ｋ、ガラス基盤（Ｂｌ １１上にもガ
ラス基盤（Ｎ１と同様な方法で第−絶縁膜３まで形成す
る。さらに、この上Ｋ１１２透明電降４として例えば、
酸化インジウム膜を３００°に程度蒸着する。この第２
透明劃１けＮ両幅が１００μｍで２木の独立しｔ１！極
が２００μｍ離れて平行に位置するように形Ｉｌｉ！す
る。これは各種のエツチング技術で達成される。次にそ
の上ＫＷ二絶ａ嘆５を、５００Ａ桿廖形成させる。そし
てこれらの２枚のガラス基盤とスペーサ１ｏｔ用いて液
晶６をはさみ込む。この液晶６＃：を液晶分子の要分子
軸方向に垂直方向に永久双極子モーメント７を有する液
晶、すなわち、強誘電性液晶な用いる。現在開発されて
いる強誘電性液晶はスメクティヴク液晶の中でカイラル
ｅスメクティックＣ相を示す。液晶分子はガラス基盤に
対して平行に配向させる為には、例憂ば、 ｐ−ｄｅｃ
７１１ｏｚｙｂｅｎｚｙｌｉｂｅｎ Ｐ’−ａｍｉｎｏ
２ｍｔｔｔｈ４１ ｂｗｔｙｌ ｃｉｎｎａｍｔｔｔ
ｇ を使用する場合には。First, on the glass substrate (A) 1, as transparent material 2, for example, indium oxide 111 (To film) is vapor-deposited at a degree of 300Aa. Furthermore, on top of that '? For example, polyvinyl alcohol (pvA) + 5ooAs as IL-insulation@3
degree of formation. Next, on the glass substrate (Bl 11), up to the -th insulating film 3 is formed in the same manner as on the glass substrate (N1).Furthermore, as K112 transparent electrostatic 4, for example,
An indium oxide film is deposited at an angle of about 300°. This second
Transparent field 1 N width is 100 μm and 2 independent trees t1! Shape Ili! so that the poles are located parallel and 200 μm apart! do. This can be accomplished using various etching techniques. Next, on top of that, KW 2 x A 5 was formed into a 500A pipe. Then, the liquid crystal 6 is sandwiched between these two glass substrates and 1 ot of spacers. This liquid crystal 6# is used as a liquid crystal having a permanent dipole moment 7 in a direction perpendicular to the essential molecular axis direction of the liquid crystal molecules, that is, a ferroelectric liquid crystal. Currently developed ferroelectric liquid crystals exhibit a chiral e-smectic C phase among smectic liquid crystals. In order to align liquid crystal molecules parallel to the glass substrate, for example, p-dec
711ozybenzyliben P'-amino
2mttth41 bwtyl cinnamttt
When using g.
ガラス基盤間の間隔は１μｍ糧度に俣つ車忙より得られ
る。また液晶分子はボニ透明電例の長さ方向（紙面に垂
直）Ｋ平行に配向させろ。これは、ガラス基盤に対して
ラビング処理等を施す事によ０り可能である。The spacing between the glass substrates is obtained by measuring a distance of 1 μm. Also, align the liquid crystal molecules parallel to the length direction of the Boni transparent electrode (perpendicular to the plane of the paper). This can be achieved by subjecting the glass substrate to a rubbing treatment or the like.
このような液晶セルに対して、まず、第二透明？ｔ［４
間に′１！Ｌ圧を印加し、ガラス基盤に対して横方向の
１電界な作る。続いてガラス基盤（Ｂ）１１の填−透明
？！ｑｉ１．２からガラス基盤（Ａ）１の１−透明電極
２側へ電界ｈ；加わるように両電極間ＫＮＮ圧印印加る
（これを縦電界と記す。ま之、縦電界な印加している時
は横電界は印加しない）。For such a liquid crystal cell, firstly, secondly transparent? t[4
'1 in between! A voltage of L is applied to create an electric field in the lateral direction to the glass substrate. Next, fill the glass base (B) 11 - transparent? ! From qi1.2 to the 1-transparent electrode 2 side of the glass substrate (A) 1, apply KNN pressure between both electrodes so that an electric field h is applied (this is referred to as a vertical electric field.However, when a vertical electric field is applied) (no transverse electric field is applied).
以上のような実施例において、液晶分子の永久双極子け
、まず第二透明電極間の電圧印加による横電界により９
０度方向のトルク？生じ、その電界方向に永久双極子の
向き？変先る。すなわち。In the embodiments described above, the permanent dipole of the liquid crystal molecules is first caused by a transverse electric field caused by applying a voltage between the second transparent electrodes.
Torque in 0 degree direction? arises and the orientation of a permanent dipole in the direction of its electric field? Change direction. Namely.
分子配向方向も変化する。そして、次に行なうガラス基
盤（Ｂ）１１からガラス基盤（Ａ）１方向への電界によ
り再び液晶分子の永久双極子が応答し１分子の配向方向
も変化する。The molecular orientation direction also changes. Then, due to the next electric field applied from the glass substrate (B) 11 to the glass substrate (A) in one direction, the permanent dipoles of the liquid crystal molecules respond again and the orientation direction of one molecule changes.
このようにして液員分子？応答させる稟により従来のガ
ラス基盤１２間に電界シ加える方式より液晶分子のトル
クが大ぎくなる事より、液晶分子？より高速に応答させ
る事ｈ；できる。In this way, liquid molecules? Due to the reason for the response, the torque of the liquid crystal molecules becomes larger than the conventional method of applying an electric field between the glass substrates 12. It is possible to respond faster.
また、低電圧で広範囲に横電界な得る為には。Also, in order to obtain a wide range of transverse electric fields at low voltage.
第３図に示すように、第二透明’ｒｔ、＠ａシ複数設は
各第二透明ＷＬＦ＠間？抵抗体で接続し、両端の筆二透
明’ｔｆｆ１間に電圧な加えることで、広範囲に横電界
を得ることができるので表示素子等にも内用できる。As shown in Fig. 3, if multiple second transparent WLFs are installed, each second transparent WLF@? By connecting with a resistor and applying a voltage between the two transparent brushes 'tff1 at both ends, a transverse electric field can be obtained over a wide range, so it can be used internally for display elements, etc.
本発明は以上説明したように第二透明′を極な有しｔ構
造にする事により、液晶分子に大衾な回転トルク？与え
る事ｈ；できるために、従来の方式よりもより高速で液
晶分子シ応答させる効果がある。As explained above, the present invention provides a large amount of rotational torque to the liquid crystal molecules by making the second transparent layer have a polar structure. Since this method can provide a higher speed response, it has the effect of making the liquid crystal molecules respond faster than the conventional method.
填１図、第３図は本発明の一実施例？示す液晶［［装置
の断百図。
屓２図は従来の液晶駆動装置の断面図。
１・・・・・・ガラス基盤（Ａ）
２・・・・・・屓−透明電極
３・・・・・・第一絶縁膜
４・・・・・・第二透明１甑
５・・・・・・第二絶縁膜
６・・・・・・液晶
７・・・・・・液晶分子の永久双啄子モーメント８・・
・・・・透明電極
？・・・・・・絶縁膜
１０・・・・・・スペーサ
１１・・・・・・ガラス基盤（Ｂ）
１２・・・・・・ガラス基盤
以 上Are Figures 1 and 3 an example of the present invention? Liquid crystal display [[Cross-sectional view of the device. Figure 2 is a cross-sectional view of a conventional liquid crystal driving device. 1... Glass base (A) 2... Bottom-transparent electrode 3... First insulating film 4... Second transparent layer 5... ...Second insulating film 6...Liquid crystal 7...Permanent twin moment of liquid crystal molecules 8...
...Transparent electrode? ...Insulating film 10...Spacer 11...Glass base (B) 12...Glass base
Claims (1)
前記第一透明電極上に第一絶縁膜を有し、前記第１絶縁
膜上に第二透明電極を有し、前記第二透明電極上に第二
絶縁膜を有し、他方のガラス基盤上には前記第一透明電
極及び第一絶縁膜を有し、液晶分子の長分子軸に対して
垂直方向に永久双極子モーメントを有する液晶分子を前
記一対のガラス基盤にはさみ込んだことを特徴とする液
晶駆動装置。(1) having a first transparent electrode on one of a pair of glass substrates;
a first insulating film on the first transparent electrode, a second transparent electrode on the first insulating film, a second insulating film on the second transparent electrode, and on the other glass substrate. characterized in that the liquid crystal molecule has the first transparent electrode and the first insulating film and has a permanent dipole moment in a direction perpendicular to the long molecular axis of the liquid crystal molecule, and is sandwiched between the pair of glass substrates. LCD drive device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3573886A JPS62194231A (en) | 1986-02-20 | 1986-02-20 | Liquid crystal driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3573886A JPS62194231A (en) | 1986-02-20 | 1986-02-20 | Liquid crystal driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62194231A true JPS62194231A (en) | 1987-08-26 |
Family
ID=12450167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3573886A Pending JPS62194231A (en) | 1986-02-20 | 1986-02-20 | Liquid crystal driving device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62194231A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343783A (en) * | 1991-11-07 | 1994-09-06 | Unisia Jecs Corporation | Speed change controller for a vehicle automatic transmission |
| WO1995025291A1 (en) * | 1994-03-17 | 1995-09-21 | Hitachi, Ltd. | Active matrix liquid crystal display device |
| WO1997007427A3 (en) * | 1995-08-14 | 1997-06-12 | Francois Parmentier | Method of controlling a liquid crystal cell and associated device |
| FR2767952A1 (en) * | 1997-09-04 | 1999-03-05 | Lg Electronics Inc | HYBRID SWITCHED LIQUID CRYSTAL DISPLAY |
| JP2004021098A (en) * | 2002-06-19 | 2004-01-22 | Ricoh Co Ltd | Optical path deflection device and picture display device |
| US7327412B2 (en) | 1995-12-20 | 2008-02-05 | Semiconductor Energy Laboratory Co., Ltd. | Liquid crystal electro-optic device |
| JP2011100166A (en) * | 1997-11-03 | 2011-05-19 | Samsung Electronics Co Ltd | Liquid crystal display device |
| JP2012118144A (en) * | 2010-11-29 | 2012-06-21 | Stanley Electric Co Ltd | Liquid crystal element and liquid crystal display device |
| US9213193B2 (en) | 1995-11-17 | 2015-12-15 | Semiconductor Energy Laboratory Co., Ltd. | Liquid crystal display and method of driving |
-
1986
- 1986-02-20 JP JP3573886A patent/JPS62194231A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343783A (en) * | 1991-11-07 | 1994-09-06 | Unisia Jecs Corporation | Speed change controller for a vehicle automatic transmission |
| WO1995025291A1 (en) * | 1994-03-17 | 1995-09-21 | Hitachi, Ltd. | Active matrix liquid crystal display device |
| WO1997007427A3 (en) * | 1995-08-14 | 1997-06-12 | Francois Parmentier | Method of controlling a liquid crystal cell and associated device |
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