JPS62245216A - Liquid crystal electrooptic device - Google Patents
Liquid crystal electrooptic deviceInfo
- Publication number
- JPS62245216A JPS62245216A JP61089478A JP8947886A JPS62245216A JP S62245216 A JPS62245216 A JP S62245216A JP 61089478 A JP61089478 A JP 61089478A JP 8947886 A JP8947886 A JP 8947886A JP S62245216 A JPS62245216 A JP S62245216A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- polarizing plate
- polarization
- axis
- substrate
- 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 22
- 239000000758 substrate Substances 0.000 claims abstract description 17
- 230000010287 polarization Effects 0.000 claims abstract description 14
- 239000005262 ferroelectric liquid crystals (FLCs) Substances 0.000 claims abstract description 9
- 230000005684 electric field Effects 0.000 abstract description 17
- 230000003287 optical effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 239000003566 sealing material Substances 0.000 description 4
- 230000006399 behavior Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000007639 printing Methods 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〕 本発明は液晶電気光学装置に関わる。[Detailed description of the invention] [Industrial application field] The present invention relates to a liquid crystal electro-optical device.
従来、光シャッタとして利用されている液晶電気光学@
竜での光の透過(以後「光オン」と書く)、遮断(以後
「光オフ」と書く)は、液晶の旋光性・複屈折性などと
2枚の偏光板を組み合わせて行つている。Liquid crystal electro-optics conventionally used as optical shutters@
Transmission of light (hereinafter referred to as ``light on'') and blocking (hereinafter referred to as ``light off'') in the dragon is achieved by combining the optical rotation and birefringence of the liquid crystal with two polarizing plates.
これらの方法を用いた従来の液晶電気光学装置は、上下
語根に形成された上下透明IE板により構成される1画
素における光オンを行う@間と光オフを行う時間が別々
である。し友がって、相隣接する2画素が同時間に光オ
ンと光オフを行う装置では、ツイストネマチック液晶か
強誘電性液晶を用いて一画素づつ別々の信号を入力して
隣接する2画素の光オンと光オフを同時に行う方法か、
強!4市液晶を用いて2画素の一刀の上電極と他方の下
電極を上下を極導通ペーストにより接続し隣接する2画
素の宵界刀向を逆にすることによって光オンと光オフを
同時に行う方法であつ交。In conventional liquid crystal electro-optical devices using these methods, the time for turning on the light and the time for turning off the light in one pixel constituted by upper and lower transparent IE plates formed on the upper and lower roots are different. Therefore, in a device where two adjacent pixels turn on and turn off light at the same time, a twisted nematic liquid crystal or ferroelectric liquid crystal is used to input separate signals to each pixel, and the two adjacent pixels Is there a way to turn on and turn off the light at the same time?
strength! Using a 4-way liquid crystal, the upper electrode of two pixels and the lower electrode of the other are connected at the top and bottom using polar conductive paste, and the light is turned on and off at the same time by reversing the direction of the two adjacent pixels. Interact with the method.
しかし、従来の方法では1画素づつ信号を入力する為、
駆動回路を含めた装置全体が繁雑になったり、上下導通
ペーストを用いた場合では、ペーストの介在により液晶
セル厚みの精度が悪くなると言う問題点を有する。However, in the conventional method, signals are input pixel by pixel, so
There are problems in that the entire device including the drive circuit becomes complicated, and in the case where vertical conductive paste is used, the accuracy of the liquid crystal cell thickness deteriorates due to the presence of the paste.
そこで本発明はこのような問題点を解決するもので、そ
の目的とするところは、相隣接する画素同志で光オン・
オフを常に反転させる装置を高精摩かつ簡略化するとこ
ろにある。The present invention is intended to solve these problems, and its purpose is to turn on and off light between adjacent pixels.
The goal is to highly refine and simplify the device that constantly reverses the OFF state.
本発明の液晶電気光学装置は、強誘電性液晶を挾持する
基板の面外側の偏光板の偏光軸の異なる領域が1画素に
ついて複数存在することを特砿としてAる。The liquid crystal electro-optical device of the present invention is characterized in that each pixel has a plurality of regions with different polarization axes of the polarizing plate on the outside of the plane of the substrates holding the ferroelectric liquid crystal.
本発明の上記の構成によれば、1画素について一刀向の
電界を印加すれば、光オンと元オフの2状態を1画素に
ついて同時に得ることができる。According to the above configuration of the present invention, by applying a single electric field to one pixel, two states of light-on and light-off can be obtained simultaneously for one pixel.
第1図は本発明の実施例における各種スイッチのON、
OF?表示用として使用される液晶電気光学装置の外や
図であって、装置左半分がON表示領域3、装置右半分
がOFF表示領域4である。FIG. 1 shows how various switches are turned on and off in an embodiment of the present invention.
OF? This is an outside view of a liquid crystal electro-optical device used for display purposes, in which the left half of the device is an ON display area 3, and the right half of the device is an OFF display area 4.
画表内の液晶の一方線方向をそろえる方法を第2図に示
した。透明型極付PT基叡1へ印刷法によりポリイミド
1!7’)形成し、辺ム−Cに対し、使用する強誘電性
液晶のセル厚2ミクロン内における、電界を上向きと下
向きに印加したときの分子の開き角度の半分(約10〜
22.5°〔以後θとする〕)程度の方向へラビング処
理を行う、この7法により、液晶分子はポリイミド膜部
から強い配向制御を受ける。次に、基板1と21−一定
の間隔に保つため、2ミクロン径の球状スペース材料番
基板1側へ散会し、液晶を充てんする友めのシール材料
5を基板2側へ印刷し7I!i似1と2を竿1図のよう
に重ね合わせた後液晶を注入し、封止材料6で注入孔部
を封止する。次に偏光板を貼り付ける方法を第3図に示
した。Figure 2 shows a method for aligning the liquid crystals in one line direction on the screen. Polyimide 1!7') was formed on a transparent PT substrate 1 with electrodes by a printing method, and an electric field was applied upward and downward within the cell thickness of 2 microns of the ferroelectric liquid crystal to be used on the side mu-C. Half the opening angle of the molecules (approximately 10~
By performing the rubbing treatment in the direction of approximately 22.5° (hereinafter referred to as θ), the liquid crystal molecules are subjected to strong alignment control from the polyimide film portion. Next, in order to maintain a constant distance between the substrates 1 and 21, a spherical space material number of 2 microns in diameter is distributed on the substrate 1 side, and a companion sealing material 5 for filling the liquid crystal is printed on the substrate 2 side. After overlapping parts 1 and 2 as shown in Figure 1, liquid crystal is injected, and the injection hole is sealed with sealing material 6. Next, FIG. 3 shows a method for attaching a polarizing plate.
ON表示領域3の基板1上には辺AOと偏光軸が平行と
なるように偏光板8を貼り付け、基板2上には偏光板8
と偏光軸が直角となるように偏光板8′を貼り付ける。A polarizing plate 8 is attached on the substrate 1 in the ON display area 3 so that the side AO and the polarization axis are parallel to each other, and the polarizing plate 8 is attached on the substrate 2.
A polarizing plate 8' is attached so that the polarizing axis is perpendicular to the polarizing plate 8'.
次にOF?表示領域4の基板1上に偏光板8と偏光軸f
2θずらして偏光板9を貼り付け、基板2上には偏光$
9と偏光軸が直角となるように1光a9′を貼抄付ける
。Next OF? A polarizing plate 8 and a polarizing axis f are placed on the substrate 1 in the display area 4.
The polarizing plate 9 is pasted with a shift of 2θ, and the polarized light $ is placed on the substrate 2.
One light beam a9' is attached so that the polarization axis is perpendicular to the light beam a9'.
以上の方法で製作され次セルの光オン・光オフ動作を第
4因、第5図に示し穴。注入され九強誘電性液晶分子I
Q、11は紙面むこう側から手前方向の電界12(第4
層中のO印)印加時に於て、層法線方向14から反時計
回りに0(第4@中の一〇)、紙面手前からむこり方向
への電界13(第5図中の■印)印加時に於て1法線方
向14から時計回りにθ(第5雫中の十〇)だけ傾く。The light-on/light-off operation of the next cell fabricated using the above method is shown in Figure 5 and Figure 5. Injected nine ferroelectric liquid crystal molecules I
Q, 11 is the electric field 12 (fourth
When applying (O mark in the layer), the electric field 13 is applied counterclockwise from the layer normal direction 14 (No. 4 @ 10), and the electric field 13 is applied in the hollow direction from the front of the paper (■ mark in Fig. 5). At the time of application, it tilts clockwise from the 1 normal direction 14 by θ (10 in the fifth drop).
ここで液晶分子配列方向が一刀の偏光板″8,9の偏光
軸に一致した時光オフとなり、液晶分子配列方向が偏光
板8.9の偏光軸から20(20〜45°程度)ずれた
時光オンとなる。第4.5図の動作から得られた元オン
・光オフの光量変化を第6図に示す。強誘電性液晶は、
電界の無印加状態でも、分子の向きが変化しない、いわ
ゆるメモリー性があるため、表示を変えない場合は、電
界を切っておいてもかまわない。&は電界15のために
ON表示領域で光オン、0IPIP表示領域で光オフ、
hでは電界14のためにaと逆の動作を示す。次にCで
はaと同じ動作を示し、ここで電界を切つ几dでは、メ
モリー性の丸めに、液晶分子が層法線方向14にわずか
に戻るためわずかにコントラストが低下するがほぼCの
状態を保つことができ、・、fについても同じように動
作をする。When the liquid crystal molecule alignment direction matches the polarization axis of the polarizing plates 8 and 9, the light is turned off, and when the liquid crystal molecule alignment direction deviates from the polarization axis of the polarizing plate 8.9 by 20 degrees (approximately 20 to 45 degrees), the light turns off. It turns on. Figure 6 shows the change in light intensity between on and off obtained from the operation in Figure 4.5. Ferroelectric liquid crystals are
Even when no electric field is applied, the orientation of the molecules does not change, which is a so-called memory property, so if you do not want to change the display, you can turn off the electric field. & is light on in ON display area due to electric field 15, light off in 0IPIP display area,
h shows the opposite behavior to a due to the electric field 14. Next, C shows the same behavior as a, and in d, where the electric field is cut off, the liquid crystal molecules slightly return to the layer normal direction 14 due to the rounding of the memory property, so the contrast decreases slightly, but it is almost the same as in C. The state can be maintained, and the same operation can be performed for .
以上、一方向の電界印加により対称性の良好な光オンと
光オフがコントラスト良く同時に得られる。As described above, by applying an electric field in one direction, symmetrical light-on and light-off can be simultaneously obtained with good contrast.
以上述べ友ように本発明によれば、1画素内の一方向の
電界により光オンと光オフを同時に得ることができるこ
とから、
(!) 偏光板の偏光軸をずらすことにより光オン・
光オフ領域を形成するので透明電極のパターニングが不
要である。As mentioned above, according to the present invention, it is possible to simultaneously turn on and turn off light using a unidirectional electric field within one pixel.
Since a light-off region is formed, patterning of the transparent electrode is not necessary.
(2)光オンと光オフを1画素内で行うので、上下導通
材料などの配線補助材料が不用である。(2) Since light is turned on and turned off within one pixel, wiring auxiliary materials such as vertical conductive materials are not required.
(3)光オンと光オフ信号が同−透明電極内で共通であ
る為、信号の遅れ・ずれが全く無い。(3) Since the light-on and light-off signals are common within the same transparent electrode, there is no signal delay or deviation.
ま友、強誘電性液晶のメモリー性を利用することにより
、
(4)切り替え時以外は電界を印加しなくてもよいので
、消費電力を低くできる。By utilizing the memory properties of ferroelectric liquid crystals, (4) there is no need to apply an electric field except when switching, so power consumption can be reduced.
第1図は、本発明の液晶電気光学装置の外観図。
第2図は、賭方線方向を示し九図。
第3図は、0N−OFF各表示領域の偏光軸の方向を示
す図。
第4図、埴5図は、紙面むこっ側から手前方向と紙面手
前側からむこう方向の各電界下における液晶分子の動作
を示し九因。
第6図は、第41.第5南の動作で得られる透過光#を
表わす図。
1・・・下基取
2・・・上基板
5・・・ON表示領域
4・・・OFF表示領域
5・・・シール材料
6・・・封止材料
7・・・ポリイミド膜
8.8′・・・ON表示領域偏光板
9.9′・・・0FIF表示領域偏光叡10.11・・
・液晶分子
12.15・・・電界方向
14・・・賭方線方向
以上
出願人 セイコーエプソン株式会社
第1図
第2図
第3図FIG. 1 is an external view of a liquid crystal electro-optical device of the present invention. Figure 2 is a diagram showing the betting direction. FIG. 3 is a diagram showing the direction of the polarization axis of each ON-OFF display area. Figures 4 and 5 show the behavior of liquid crystal molecules under each electric field in the direction from the far side of the page to the front and in the direction from the front to the far side of the page. FIG. 6 shows No. 41. A diagram showing transmitted light # obtained by the fifth south operation. 1... Lower base 2... Upper substrate 5... ON display area 4... OFF display area 5... Sealing material 6... Sealing material 7... Polyimide film 8.8' ...ON display area polarizing plate 9.9'...0FIF display area polarizing plate 10.11...
・Liquid crystal molecules 12.15... Electric field direction 14... Betting line direction or above Applicant: Seiko Epson Corporation Figure 1 Figure 2 Figure 3
Claims (1)
て成る液晶電気光学装置において、前記透明電極で構成
される1画素について、前記一対の基板の両外側の偏光
板の偏光軸の異なる領域が複数存在することを特徴とす
る液晶電気光学装置。In a liquid crystal electro-optical device comprising a ferroelectric liquid crystal sandwiched between a pair of substrates having transparent electrodes, for one pixel constituted by the transparent electrode, polarizing plates on both outer sides of the pair of substrates have different polarization axes. A liquid crystal electro-optical device characterized by having a plurality of regions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61089478A JPS62245216A (en) | 1986-04-18 | 1986-04-18 | Liquid crystal electrooptic device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61089478A JPS62245216A (en) | 1986-04-18 | 1986-04-18 | Liquid crystal electrooptic device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62245216A true JPS62245216A (en) | 1987-10-26 |
Family
ID=13971843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61089478A Pending JPS62245216A (en) | 1986-04-18 | 1986-04-18 | Liquid crystal electrooptic device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62245216A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5223963A (en) * | 1991-02-13 | 1993-06-29 | Canon Kabushiki Kaisha | Chiral smectic liquid crystal device with different pretilt angles in pixel and non-pixel areas |
US6077331A (en) * | 1995-12-02 | 2000-06-20 | Normalair-Garrett (Holdings) Limited | Molecular sieve type gas separation apparatus and method |
-
1986
- 1986-04-18 JP JP61089478A patent/JPS62245216A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5223963A (en) * | 1991-02-13 | 1993-06-29 | Canon Kabushiki Kaisha | Chiral smectic liquid crystal device with different pretilt angles in pixel and non-pixel areas |
US5321537A (en) * | 1991-02-13 | 1994-06-14 | Canon Kabushiki Kaisha | Method for producing chiral smectic liquid crystal device including masking areas between electrodes, rubbing, removing mask, and rubbing again |
US5612802A (en) * | 1991-02-13 | 1997-03-18 | Canon Kabushiki Kaisha | Chiral smectic liquid crystal device having alignment film over electrodes being different and having different pretilt from alignment film between electrodes |
US6077331A (en) * | 1995-12-02 | 2000-06-20 | Normalair-Garrett (Holdings) Limited | Molecular sieve type gas separation apparatus and method |
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