JPS6325629A - Liquid crystal display element - Google Patents
Liquid crystal display elementInfo
- Publication number
- JPS6325629A JPS6325629A JP61168112A JP16811286A JPS6325629A JP S6325629 A JPS6325629 A JP S6325629A JP 61168112 A JP61168112 A JP 61168112A JP 16811286 A JP16811286 A JP 16811286A JP S6325629 A JPS6325629 A JP S6325629A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- layer
- display element
- crystal display
- counterclockwise
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 73
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 abstract description 13
- 238000004040 coloring Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 14
- UWCWUCKPEYNDNV-LBPRGKRZSA-N 2,6-dimethyl-n-[[(2s)-pyrrolidin-2-yl]methyl]aniline Chemical compound CC1=CC=CC(C)=C1NC[C@H]1NCCC1 UWCWUCKPEYNDNV-LBPRGKRZSA-N 0.000 description 5
- 210000002858 crystal cell Anatomy 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000002834 transmittance Methods 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13475—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which at least one liquid crystal cell or layer is doped with a pleochroic dye, e.g. GH-LC cell
Landscapes
- Physics & Mathematics (AREA)
- Liquid Crystal (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、液晶の分子配列を捻った二層構造のゲストホ
スト形（ＧＨ）液晶表示素子に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a guest-host type (GH) liquid crystal display element having a two-layer structure in which the molecular arrangement of liquid crystal is twisted.
従来、二層構造のＯＨ液晶表示素子においては、そのし
きい特性を向上させ、またディケイタイム（ｄｅｃａｙ
Ｎｍｅ）を短くするために、二つの液晶セル内に液晶
、二色性色素と共にカイラル剤を注入することにより、
咳液晶セル内の液晶の分子配列を例えば９０°乃至４５
０°だけ捻るようにしている。Conventionally, in a two-layer structure OH liquid crystal display element, the threshold characteristics have been improved and the decay time (decay time) has been improved.
In order to shorten Nme), by injecting a chiral agent into two liquid crystal cells together with liquid crystal and dichroic dye,
The molecular alignment of the liquid crystal in the cough liquid crystal cell is, for example, 90° to 45°.
I try to twist it only 0°.
しかしながら、このように液晶の分子配列を捻った二層
構造のＯＨ液晶表示素子は、液晶の分子配列の捻り角を
大きくするにつれて、オフ時において二色性色素による
光の吸収率が小さくなるため、オフ時の光の抜けが大き
くなってコントラストが低くなり、また液晶に混入され
た二色性色素が有彩色の場合には表示色の彩度が低下し
て灰色に近いくすんだ色になってしまう。However, in an OH liquid crystal display element with a two-layer structure in which the molecular arrangement of the liquid crystal is twisted in this way, as the twist angle of the molecular arrangement of the liquid crystal increases, the light absorption rate by the dichroic dye decreases when the liquid crystal is off. When the display is turned off, light leakage increases and the contrast decreases.Also, if the dichroic dye mixed into the liquid crystal is a chromatic color, the saturation of the displayed color decreases and the color becomes dull, almost gray. It ends up.
本発明りま、以上の点に鑑み、液晶の分子配列を捻った
二層構造のＯＨ液晶表示素子において、液晶の分子配列
の捻り角を大きくしても、オフ時の光の抜けが小さく、
従ってコントラストが高く、また表示色の彩度が低下し
ないようにした液晶表示素子を提供することを目的とし
ている。In view of the above points, the present invention has been developed in an OH liquid crystal display element having a two-layer structure in which the molecular arrangement of the liquid crystal is twisted.
Therefore, it is an object of the present invention to provide a liquid crystal display element that has high contrast and does not reduce the saturation of displayed colors.
Ｃ問題点を解決するための手段及び作用〕上記目的は、
本発明によれば、液晶の分子配列が９０°乃至４５０°
だけ捻られた二層構造のＧＨ液晶表示素子において、第
一層と第二層の境界で第一層及び第二層の液晶の分子配
列が直交しており、１ノ４波長位相差板が、上記境界で
の第一層の）夜晶の分子配列の方向に対して、液晶が左
回りの場合には反時計回りに、また液晶が右回りの場合
には時計回りに各々４５゛だけ光軸を傾斜させて、第一
層と第二層の間に配設されていることを特徴とする液晶
表示素子により達成される。Means and actions for solving problem C] The above purpose is to
According to the present invention, the molecular alignment of the liquid crystal is from 90° to 450°.
In a GH liquid crystal display element with a two-layer structure that is twisted by 100 degrees, the molecular alignments of the liquid crystals in the first and second layers are orthogonal at the boundary between the first and second layers, and the 1/4-wavelength retardation plate is , with respect to the molecular alignment direction of the night crystal (in the first layer) at the above boundary, by 45° counterclockwise if the liquid crystal is rotating counterclockwise, and clockwise if the liquid crystal is rotating clockwise. This is achieved by a liquid crystal display element characterized in that it is disposed between a first layer and a second layer with an inclined optical axis.
この発明によれば、オフ時において、第一層を透過した
光は、１７４波長位相差坂により楕円偏光となった後、
第二層に入射するので、第二層での吸収率が大きくなり
、かくして光の抜けが小さく、従ってコントラストが高
く、また表示色の彩度があまり低下しない液晶表示素子
が得られる。According to this invention, in the off-state, the light transmitted through the first layer becomes elliptically polarized light due to the 174-wavelength phase difference slope, and then
Since the light is incident on the second layer, the absorption rate in the second layer is increased, and thus a liquid crystal display element with small light leakage, high contrast, and no significant decrease in the saturation of displayed colors can be obtained.
以下、図面に示した一実施例に基づいて本発明の詳細な
説明する。Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.
第１図は、本発明による液晶表示素子の一実施例の概略
断面図であり、液晶表示素子１は、二層構造のＧＨ（ゲ
ストホスト形）液晶表示素子である。２及び２“は互い
に平行に配設されたガラス基板であり、これら両ガラス
基板２．２”の間には、１／４波長位相差板が配設され
て二層構造を形成している。そして、これらガラス基板
２．２′及び１７４波長位相差板２′の互いに対向する
面上には各々透明電極が設けられている。即ち、第一の
ガラス基板２の下面には、所定のパターンを有する透明
電極３ａが、１７４波長位相差板２”の上面には、所定
のパターンを有する透明電極３ｂが各々設けられ、また
該１７４波長位相差仮２°の下面には、所定のパターン
を有する透明電極３ｃが、第二のガラス基板２゜の上面
には、所定のパターンを有する透明電極３ｄが各々設け
られている。さらに、各ガラス基板２゜２°及び１／４
′＄を長位相差板２゛の対向する面において各透明電
極３ａ乃至３ｄの上から、後述の如く形成された配向膜
４ａ乃至４ｄが備えられている。第一のガラス基＃ｙｉ
２及び１ノ４波長位相差仮２゛の間の空間そとカイラル
剤７とが注入され、上記空間の周囲に晦されたンール材
８により密閉されており、かくして第一層Ｉと第二層■
とを構成している。FIG. 1 is a schematic cross-sectional view of one embodiment of a liquid crystal display element according to the present invention, and the liquid crystal display element 1 is a two-layer structure GH (guest host type) liquid crystal display element. 2 and 2" are glass substrates arranged in parallel to each other, and a quarter wavelength retardation plate is arranged between these two glass substrates 2.2" to form a two-layer structure. . Transparent electrodes are provided on mutually opposing surfaces of the glass substrate 2.2' and the 174-wavelength retardation plate 2'. That is, a transparent electrode 3a having a predetermined pattern is provided on the lower surface of the first glass substrate 2, and a transparent electrode 3b having a predetermined pattern is provided on the upper surface of the 174-wavelength retardation plate 2''. A transparent electrode 3c having a predetermined pattern is provided on the lower surface of the 174-wavelength phase difference of 2°, and a transparent electrode 3d having a predetermined pattern is provided on the upper surface of the second glass substrate 2°. , each glass substrate 2°2° and 1/4
On the opposing surfaces of the long retardation plate 2', alignment films 4a to 4d, which are formed as described below, are provided over each of the transparent electrodes 3a to 3d. First glass group #yi
A chiral agent 7 is injected into the space between 2 and 1/4 wavelength phase difference 2', and the space is sealed by a molded material 8 placed around the space, and thus the first layer I and the second layer Layer■
It consists of
上記第一のガラス基板２の下面に備えられた配向膜４ａ
と１７４ 波長位相差板２″の上面に備えられた配向膜
４ｂとは、これらの配向膜４ａ及び４ｂの配向処理とカ
イラル剤７の注入量に基づいて第一層■内の液晶６の分
子配列が９０°乃至４５０°だけ捻られるような、ラビ
ング方向に配向処理されている。Alignment film 4a provided on the lower surface of the first glass substrate 2
and 174 The alignment film 4b provided on the top surface of the wavelength retardation plate 2'' is based on the alignment treatment of these alignment films 4a and 4b and the injection amount of the chiral agent 7. It is oriented in the rubbing direction so that the array is twisted by 90° to 450°.
また、１７４波長位相差板２′の下面に備えられた配向
膜４ｃと第二のガラス基板２“の上面に備えられた配向
膜４ｄとは、これらの配向膜４ｃ及び４ｄの配向処理と
カイラル剤７の注入量に基づいて第二層■内の液晶６の
分子配列が９０’乃至４５０゛だけ捻られ且つ配向膜４
ｃにおける第二層■内の液晶６の分子配列の方向Ｐ（第
２図または第３図参照）が配向膜４ｂにおける第一層Ｉ
内の液晶６の分子配列の方向Ｑ（第２図または第３図参
照）に対して直交するような、ラビング方向に配向処理
されている。In addition, the alignment film 4c provided on the lower surface of the 174-wavelength retardation plate 2' and the alignment film 4d provided on the upper surface of the second glass substrate 2'' are subjected to alignment treatment and chiral treatment of these alignment films 4c and 4d. Based on the injection amount of the agent 7, the molecular arrangement of the liquid crystal 6 in the second layer 1 is twisted by 90' to 450', and the alignment film 4
The direction P of the molecular alignment of the liquid crystal 6 in the second layer (I) in c (see FIG. 2 or FIG. 3) is the first layer I in the alignment film 4b.
The liquid crystal 6 is aligned in a rubbing direction perpendicular to the molecular alignment direction Q (see FIG. 2 or 3).
また、１／４ 波長位相差板２′は、液晶６が左回りに
捻られている場合には第２図に示すように、その先軸が
第一１１５１の液晶の配向方向Ｑから反時計回りに４５
°だけ傾斜した方向Ｒを向くように配置され、また液晶
６が右回りに捻られている場合には第３図に示すように
、その光軸が第一層Ｉの液晶の配向方向Ｑから時計回り
に４５°だけ傾斜した方向Ｓを向くように配置されてい
る。In addition, when the liquid crystal 6 is twisted counterclockwise, the 1/4 wavelength retardation plate 2' has its tip axis counterclockwise from the alignment direction Q of the first liquid crystal 1151, as shown in FIG. 45 around
If the liquid crystal 6 is arranged so as to face the direction R inclined at an angle of 1°, and the liquid crystal 6 is twisted clockwise, its optical axis is away from the alignment direction Q of the liquid crystal in the first layer I, as shown in FIG. It is arranged so as to face a direction S inclined by 45 degrees clockwise.
本発明による液晶表示素子Ｉは、以上のように構成され
ており、非通電時には第一層■と第二層■の液晶６及び
二色性色素５．５゛は、第１図に示されているように、
例えば９０°乃至４５０°だけ捻られて配列されること
になり、この状態では液晶表示素子１に垂直方向に第１
図の上方から入射する光は、第一層■で二色性色素５に
より分光吸収され、Ｉ／４波長位相差板２′により楕円
偏光となり、続いて第二層■で二色性色素５゛により分
光吸収されることによって、第一層■の二色性色素５の
色彩と第二層■の二色性色素５°の色彩の減色混合によ
る色彩の表示が行われる。The liquid crystal display element I according to the present invention is constructed as described above, and when the current is not applied, the liquid crystal 6 and the dichroic dye 5.5 in the first layer (3) and the second layer (2) are as shown in FIG. As if
For example, the arrangement is twisted by 90° to 450°, and in this state, the first
The light incident from above the figure is spectral absorbed by the dichroic dye 5 in the first layer (■), becomes elliptically polarized light by the I/4 wavelength retardation plate 2', and then the dichroic dye 5 is absorbed in the second layer (■). As a result of the spectral absorption by 2, a color is displayed by subtractive mixing of the color of the dichroic dye 5 of the first layer (3) and the color of the dichroic dye 5 of the second layer (2).
次に、本発明による液晶表示素子１の作動について説明
する。Next, the operation of the liquid crystal display element 1 according to the present invention will be explained.
先ず、透明Ｔ！ＩＰｉ３ａと透明電極３ｂの間に電圧を
印加して第一層Ｉのみをオンにすると、第一層Ｉの液晶
６及び二色性色素５の分子が垂直に並び、入射光は、第
一層ｒを透過し、続いて第二層■で二色性色素５゛によ
り分光吸収されて透過することによって、第二層Ｈの二
色性色素５°の色彩の表示となる。First, transparent T! When a voltage is applied between the IPi 3a and the transparent electrode 3b to turn on only the first layer I, the molecules of the liquid crystal 6 and the dichroic dye 5 in the first layer I are aligned perpendicularly, and the incident light is directed to the first layer I. The light passes through r, and then is spectral-absorbed and transmitted by the dichroic dye 5' in the second layer (2), resulting in a color display of the dichroic dye 5' in the second layer H.
また９、透明電８ｉ３ｃと透明電極３ｄの間に電圧を印
加して第二層■のみをオンにすると、第二層Ｈの液晶６
及び二色性色素５°の分子が垂直に並び、入射光は、第
一層Ｉで二色性色素５により分光吸収されて透過し、１
７４波長位相差板２゛により楕円偏光となり、続いて第
二層■を透過することによって、第一層Ｉの二色性色素
５の色彩の表示となる。9. If a voltage is applied between the transparent electrode 8i3c and the transparent electrode 3d to turn on only the second layer (■), the liquid crystal 6 of the second layer H
The molecules of the dichroic dye 5 and the dichroic dye 5 are aligned vertically, and the incident light is spectral absorbed by the dichroic dye 5 in the first layer I and transmitted.
The light is turned into elliptically polarized light by the 74-wavelength retardation plate 2', and then transmitted through the second layer 2, thereby displaying the color of the dichroic dye 5 in the first layer I.
さらに、第一層Ｉと第二層■とを同時にオンにすると、
第一層■及び第二層■の液晶６及び二色性色素５．５”
の分子が垂直に並び、入射光は、第一［１及び第二ｌｎ
を吸収されることなく透過して、白色の表示となる。Furthermore, if the first layer I and the second layer ■ are turned on at the same time,
First layer ■ and second layer ■ liquid crystal 6 and dichroic dye 5.5"
molecules are aligned vertically, and the incident light is directed to the first [1 and second ln
is transmitted without being absorbed, resulting in a white display.
かくして、液晶表示素子Ｉは、通常の二Ｎ構造のＧＨＨ
晶表示素子と同様の表示を行うことになり、しかもオフ
時には、第一層Ｉを透過した後に、１７４波長位相差板
２゛により楕円偏光となって、第二層Ｈに入射するので
、１／４波長位相差板２′のない場合に比較して第二層
■での透過率が減少し、かくしてコントラストが窩く且
っ彩度も高い色表示が行われる。Thus, the liquid crystal display element I has a normal 2N structure GHH
The display is similar to that of a crystal display element, and when off, the light passes through the first layer I, becomes elliptically polarized by the 174-wavelength retardation plate 2, and enters the second layer H. The transmittance of the second layer (3) is reduced compared to the case without the /4-wavelength retardation plate 2', and color display with sharp contrast and high chroma is thus performed.
この場合、液晶の分子配列の捻り角により、液晶表示素
子のしきい特性及び応答速度が変化し、特に応答速度に
ついては、上記捻り角を大きくするとその立上がりが遅
くなり且つディケイが早くなるので、上記捻り角は、し
きい特性と応答速度を最適にするように決定することが
望ましく、また最適なしきい特性を与える捻り角は１８
０°乃至２４０°付近がよい。In this case, the threshold characteristics and response speed of the liquid crystal display element change depending on the twist angle of the molecular arrangement of the liquid crystal, and especially regarding the response speed, as the twist angle increases, the rise becomes slower and the decay becomes faster. The above twist angle is preferably determined to optimize the threshold characteristics and response speed, and the twist angle that provides the optimal threshold characteristics is 18
Preferably, the angle is around 0° to 240°.
第２図は、本発明による液晶表示素子の他の実施例を示
しており、この液晶表示素子１１は、二つの通常の−ｉ
構造のＧＨ形液晶セルｌｌａ及びＩｌｂを重ねて、その
間に１／４波長位相差板１０を配置することにより構成
されている。液晶セルｌｌａ及び１１ｂ は、各々、２
枚の平行なガラス基板１２．１２’と、該ガラス基板の
対向する内面に設けられた透明電極１３ａ及び１３ｂ
とから成り、該ガラス基［１２，１２’の間の空間に二
色性色素１５を含む液晶１６とカイラル剤１７とが注入
され且つ該空間の周囲に施されたシール材１８により密
閉されている。各ガラス基板の内面の配向処理、即ち各
配向膜１４ａ乃至１４ｄの配置と１７４波長位相差仮１
０の向きとは、第１図の実施例の場合と同様に行われて
おり、従って液晶表示素子１１の動作も第１図の実施例
と同様である。FIG. 2 shows another embodiment of the liquid crystal display element 11 according to the invention, in which two conventional -i
It is constructed by stacking GH type liquid crystal cells lla and Ilb with a quarter wavelength retardation plate 10 between them. Liquid crystal cells lla and 11b each have 2
A pair of parallel glass substrates 12, 12' and transparent electrodes 13a and 13b provided on opposing inner surfaces of the glass substrates.
A liquid crystal 16 containing a dichroic dye 15 and a chiral agent 17 are injected into the space between the glass bases [12, 12', and the space is sealed with a sealing material 18 applied around the space. There is. Orientation treatment on the inner surface of each glass substrate, that is, arrangement of each alignment film 14a to 14d and 174 wavelength phase difference provisional 1
The zero orientation is carried out in the same manner as in the embodiment of FIG. 1, and therefore the operation of the liquid crystal display element 11 is also the same as in the embodiment of FIG.
以上述べたように本発明によれば、液晶の分子配列が９
０°乃至４５０°だけ捻られた二層構造のＧＨ形液晶表
示素子におｔｌて、第一層と第二層の境界で第一層及び
第二層の液晶の分子配列が直交しており、１７４波長位
相差板が、上記境界での第一層の液晶の分子配列の方向
に対して、液晶が左回りの場合には反時計回りに、また
液晶が右回りの場合には時計回りに各々４５°だけ光軸
を傾斜させて、第一層と第二層の間に配設されているよ
うに構成したから、入射光が第一層を透過した後に、１
７４波長位相差板により楕円偏光となり、続いて第二層
に入射するので、従来の液晶の分子配列を捻った二層構
造のＧＨ形液晶表示素子と比較して、第二層における二
色性色素による入射光の吸収率が高くなり、従ってオフ
時の光の抜けが小さくなってコントラストが高くなり、
また表示色の色彩の彩度の低下が低減され得る。As described above, according to the present invention, the molecular arrangement of the liquid crystal is 9
In a GH type liquid crystal display element with a two-layer structure twisted by 0° to 450°, the molecular alignments of the liquid crystals in the first and second layers are orthogonal at the boundary between the first and second layers. , the 174-wavelength retardation plate rotates counterclockwise when the liquid crystal rotates counterclockwise, and clockwise when the liquid crystal rotates clockwise, with respect to the molecular alignment direction of the first layer liquid crystal at the boundary. Since the optical axis is tilted by 45 degrees in each case and the optical axis is arranged between the first layer and the second layer, after the incident light passes through the first layer,
The light becomes elliptically polarized by the 74-wavelength retardation plate, and then enters the second layer, so the dichroism in the second layer is lower than that of a GH type liquid crystal display element, which has a two-layer structure in which the molecular arrangement of conventional liquid crystals is twisted. The absorption rate of incident light by the pigment increases, and therefore the light leakage during off-time is reduced, resulting in higher contrast.
Further, deterioration in saturation of display colors can be reduced.
第１図は本発明による液晶表示素子の一実施例の縦断面
図、第２図及び第３図は第１図の液晶表示素子の第一層
と第二層の境界における液晶表示素子の配向方向と１７
４波長位相差板の光軸との関係を示す平面図、第４図は
本発明による液晶表示素子の他の実施例を示す図である
。
１．１１−−−−・液晶表示素子； ２ 、２”、 １
２．１２’ −ガラス基板；２°、 １０−・１／４
波長位相差＋ｆｆｌ ； ３ａ、３ｂ、３ｃ。
３ｄ、 １３ａ、 １３ｂ・−・・・ｉ３明電極； ４
ａ、４ｂ、４ｃ、４ｄ、１４ａ、１４ｂ。
１４ｃ、１４ｄ−−配向膜、 ５ 、５’、１５−・−
・二色性色素；６゜１６・一液晶；７，１７・・・・・
カイラル剤；８，１８・・・・シール材；Ｉ−第一層；
ｆｆ−第二層。
特許出願人：スタンレー電気株式会社
代 理 人：弁理士 平 山 −拳
固 ；弁理士 海 津 保 三
第２図 第３図FIG. 1 is a longitudinal cross-sectional view of one embodiment of a liquid crystal display element according to the present invention, and FIGS. 2 and 3 are orientations of the liquid crystal display element at the boundary between the first layer and the second layer of the liquid crystal display element of FIG. 1. direction and 17
FIG. 4 is a plan view showing the relationship between the four-wavelength retardation plate and the optical axis, and is a diagram showing another embodiment of the liquid crystal display element according to the present invention. 1.11-----・Liquid crystal display element; 2, 2", 1
2.12' - glass substrate; 2°, 10-・1/4
Wavelength phase difference +ffl; 3a, 3b, 3c. 3d, 13a, 13b...i3 bright electrode; 4
a, 4b, 4c, 4d, 14a, 14b. 14c, 14d--alignment film, 5, 5', 15--
・Dichroic dye; 6゜16・monoliquid crystal; 7,17...
Chiral agent; 8, 18...Sealing material; I-first layer;
ff - second layer. Patent applicant: Stanley Electric Co., Ltd. Representative: Patent attorney Kengo Hirayama; Patent attorney Yasuzo Kaizu Figure 2 Figure 3
Claims (1)
構造のゲストホスト形液晶表示素子において、第一層と
第二層の境界で第一層及び第二層の液晶の分子配列が直
交しており、１／４波長位相差板が、上記境界での第一
層の液晶の分子配列の方向に対して、液晶が左回りの場
合には反時計回りに、また液晶が右回りの場合には時計
回りに各々４５゜だけ光軸を傾斜させて、第一層と第二
層の間に配設されていることを特徴とする、液晶表示素
子。In a guest-host type liquid crystal display element with a two-layer structure in which the molecular alignment of the liquid crystal is twisted by 90° to 450°, the molecular alignment of the liquid crystal in the first and second layers is orthogonal at the boundary between the first and second layers. The 1/4 wavelength retardation plate rotates counterclockwise when the liquid crystal rotates counterclockwise, and counterclockwise when the liquid crystal rotates clockwise, with respect to the molecular alignment direction of the first layer liquid crystal at the above boundary. A liquid crystal display element, characterized in that it is disposed between a first layer and a second layer, with the optical axis tilted clockwise by 45 degrees in each case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61168112A JPS6325629A (en) | 1986-07-18 | 1986-07-18 | Liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61168112A JPS6325629A (en) | 1986-07-18 | 1986-07-18 | Liquid crystal display element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6325629A true JPS6325629A (en) | 1988-02-03 |
| JPH059009B2 JPH059009B2 (en) | 1993-02-03 |
Family
ID=15862074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61168112A Granted JPS6325629A (en) | 1986-07-18 | 1986-07-18 | Liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6325629A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5591680A (en) * | 1993-12-06 | 1997-01-07 | Micron Communications | Formation methods of opaque or translucent films |
| US7800714B2 (en) | 2005-09-30 | 2010-09-21 | Sharp Kabushiki Kaisha | Liquid crystal display and television receiver |
| US8009248B2 (en) | 2005-09-30 | 2011-08-30 | Sharp Kabushiki Kaisha | Liquid crystal display and television receiver |
| US8279375B2 (en) | 2007-04-16 | 2012-10-02 | Sharp Kabushiki Kaisha | Display apparatus, driving apparatus of display apparatus, and electronic device |
| US8294736B2 (en) | 2006-11-20 | 2012-10-23 | Sharp Kabushiki Kaisha | Display device driving method, driving circuit, liquid crystal display device, and television receiver |
| US8451201B2 (en) | 2005-09-30 | 2013-05-28 | Sharp Kabushiki Kaisha | Liquid crystal display device drive method, liquid crystal display device, and television receiver |
| KR20180121028A (en) * | 2017-04-28 | 2018-11-07 | 주식회사 엘지화학 | Transmittance-variable device |
| WO2019233407A1 (en) * | 2018-06-05 | 2019-12-12 | 深圳Tcl新技术有限公司 | Liquid crystal display module and liquid crystal display device |
-
1986
- 1986-07-18 JP JP61168112A patent/JPS6325629A/en active Granted
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5591680A (en) * | 1993-12-06 | 1997-01-07 | Micron Communications | Formation methods of opaque or translucent films |
| US7800714B2 (en) | 2005-09-30 | 2010-09-21 | Sharp Kabushiki Kaisha | Liquid crystal display and television receiver |
| US8009248B2 (en) | 2005-09-30 | 2011-08-30 | Sharp Kabushiki Kaisha | Liquid crystal display and television receiver |
| US8451201B2 (en) | 2005-09-30 | 2013-05-28 | Sharp Kabushiki Kaisha | Liquid crystal display device drive method, liquid crystal display device, and television receiver |
| US8294736B2 (en) | 2006-11-20 | 2012-10-23 | Sharp Kabushiki Kaisha | Display device driving method, driving circuit, liquid crystal display device, and television receiver |
| US8279375B2 (en) | 2007-04-16 | 2012-10-02 | Sharp Kabushiki Kaisha | Display apparatus, driving apparatus of display apparatus, and electronic device |
| KR20180121028A (en) * | 2017-04-28 | 2018-11-07 | 주식회사 엘지화학 | Transmittance-variable device |
| CN110573927A (en) * | 2017-04-28 | 2019-12-13 | 株式会社Lg化学 | Variable transmittance device |
| EP3617769A4 (en) * | 2017-04-28 | 2020-03-18 | LG Chem, Ltd. | Transmittance variable device |
| JP2020518032A (en) * | 2017-04-28 | 2020-06-18 | エルジー・ケム・リミテッド | Variable transmittance device |
| US11003032B2 (en) | 2017-04-28 | 2021-05-11 | Lg Chem, Ltd. | Transmittance-variable device |
| CN110573927B (en) * | 2017-04-28 | 2022-03-08 | 株式会社Lg化学 | Variable transmittance device |
| WO2019233407A1 (en) * | 2018-06-05 | 2019-12-12 | 深圳Tcl新技术有限公司 | Liquid crystal display module and liquid crystal display device |
| CN110568684A (en) * | 2018-06-05 | 2019-12-13 | 深圳Tcl新技术有限公司 | Liquid crystal display module and liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH059009B2 (en) | 1993-02-03 |
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