JPS61179420A - liquid crystal display device - Google Patents
liquid crystal display deviceInfo
- Publication number
- JPS61179420A JPS61179420A JP60017571A JP1757185A JPS61179420A JP S61179420 A JPS61179420 A JP S61179420A JP 60017571 A JP60017571 A JP 60017571A JP 1757185 A JP1757185 A JP 1757185A JP S61179420 A JPS61179420 A JP S61179420A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- display device
- crystal display
- crystal layer
- substrates
- 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 description 28
- 239000000758 substrate Substances 0.000 claims description 9
- 239000005262 ferroelectric liquid crystals (FLCs) Substances 0.000 claims description 4
- 230000005684 electric field Effects 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 6
- 210000002858 crystal cell Anatomy 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000007787 solid 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
- G02F1/137—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
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 ｌ五豆見 本発明は液晶表示装置の構成に関する。[Detailed description of the invention] l Gomame viewing The present invention relates to the structure of a liquid crystal display device.
豆−五
本発明は、電界の印加力法により三種類の色表示が出来
るようにした新規な構成の液晶表示装置を提供すること
を目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid crystal display device with a novel structure that can display three types of colors by applying an electric field.
ＬＪＬ
この目的は、本発明によれば、透明導電膜と配向膜とを
有する一対の基板間に、チルト角が約４５°の強誘電性
液晶に黒色色素を混入してなる液晶層を封緘せしめ、該
一対の基板の一方の外側表面上に二色偏光板が貼着せし
めることにより達成される。LJL According to the present invention, this purpose is to seal a liquid crystal layer made of a ferroelectric liquid crystal with a tilt angle of about 45° mixed with a black dye between a pair of substrates having a transparent conductive film and an alignment film. This is achieved by pasting a dichroic polarizing plate on the outer surface of one of the pair of substrates.
ス」Ｌ鮭
以下、図示した実施例に基づき本発明の詳細な説明すれ
ば、第１図乃至第３図において、１．１゜は基板、２．
２°は基板１，１゛上に夫々形成された透明導電膜、３
は透明導電膜２上に第２図において実線矢印ａによって
示された方向にラビングされたＰＶＡまたはポリイミド
等でなる配向膜、３°は透明導電膜２°上に第２図にお
いて点線矢印すによって示された方向にラビングされた
ＰＶＡまたはポリイミド等でなる配向膜、４はチルト角
が約４５°の強誘電性液晶に長軸方向の吸収性を有する
二色性の黒色色素を混入して成る液晶層、５は液晶層４
を基板１．１°間に封緘せしめるシール材、６は第２図
に示す如く相互に直交し配向膜３，３゛のラビング方向
と夫々４５°傾斜した赤色吸収軸ｍと緑色吸収軸ｎとを
有する基板１上に貼着された偏光板である。Hereinafter, the present invention will be described in detail based on the illustrated embodiment. In FIGS. 1 to 3, 1.1° is the substrate, 2.
2° is the transparent conductive film formed on the substrates 1 and 1, respectively, and 3
3° is an alignment film made of PVA or polyimide rubbed on the transparent conductive film 2 in the direction indicated by the solid arrow a in FIG. The alignment film 4 made of PVA or polyimide rubbed in the indicated direction is made of a ferroelectric liquid crystal with a tilt angle of about 45° mixed with a dichroic black dye having absorption in the long axis direction. liquid crystal layer, 5 is liquid crystal layer 4
As shown in FIG. 2, a sealing material 6 seals between the substrates 1.1° and a red absorption axis m and a green absorption axis n that are orthogonal to each other and inclined at 45° with respect to the rubbing direction of the alignment films 3 and 3, respectively. This is a polarizing plate adhered onto a substrate 1 having a.
本液晶表示装置は上述のように構成されているから、第
３図のように液晶層４に紙面表側より裏側に向う電界Ｅ
を印加すると、液晶はラビング方向から反時計回りにθ
＃４５°ずれて赤色吸収軸ｍに一致する方向を向く。又
液晶層４に紙面裏側より表面に向う電界Ｅ°を印加する
と液晶はラビング方向から時計回りにθ°＃４５°ずれ
緑色吸収軸ｎに一致する方向を向く。このとき液晶中の
色素も夫々液晶と同じ方向を向くため、入射光のうち色
素と直角の成分のみ通過するので、偏光板６により電界
Ｅを印加した場合は赤色光は吸収されて緑色光のみが液
晶セルを通過し、電界Ｅ°を印加した場合は緑色光は吸
収され赤色光のみが液晶セルを通過することになる。ま
た電界Ｅと電界Ｅ°とを交互に印加した場合は、緑色光
と赤色光とが交互に液晶セルを通過するので、これら二
色による混合色として黄色の色表示となる。以上の説明
から明らかな如く、液晶層４への電界の印加力法を夫々
変えることにより、緑色、赤色及び黄色の三種類の色表
示が得られる。Since this liquid crystal display device is constructed as described above, an electric field E is applied to the liquid crystal layer 4 from the front side to the back side of the paper as shown in FIG.
When θ is applied, the liquid crystal moves counterclockwise from the rubbing direction.
# Shifted by 45 degrees and facing the direction that coincides with the red absorption axis m. When an electric field E° directed from the back side of the paper toward the front surface is applied to the liquid crystal layer 4, the liquid crystal shifts clockwise from the rubbing direction by θ°#45° and is oriented in a direction coinciding with the green absorption axis n. At this time, the pigments in the liquid crystal also face in the same direction as the liquid crystal, so only the component of the incident light perpendicular to the pigment passes through, so when the electric field E is applied by the polarizing plate 6, the red light is absorbed and only the green light is absorbed. When the light passes through the liquid crystal cell and an electric field E° is applied, the green light is absorbed and only the red light passes through the liquid crystal cell. Further, when the electric field E and the electric field E° are applied alternately, green light and red light alternately pass through the liquid crystal cell, so that a yellow color is displayed as a mixed color of these two colors. As is clear from the above description, by changing the method of applying the electric field to the liquid crystal layer 4, three types of color display, green, red, and yellow, can be obtained.
尚、上述の実施例においては、偏光板６の偏光特性を緑
色及び赤色として説明したが、これらの色を適当に選択
することにより上記実施例の他の各種の色表示を得るこ
とができる。また、電界Ｅと電界Ｅ°の印加を交代せし
め混合色を得るに際しその交代周期を適宜調整すること
によって、得られる混合色の彩度を適度に変更し得る。In the above-mentioned embodiment, the polarization characteristics of the polarizing plate 6 are described as green and red, but various other color displays can be obtained by appropriately selecting these colors. In addition, by alternating the application of the electric fields E and E° to obtain a mixed color, the saturation of the resulting mixed color can be appropriately changed by appropriately adjusting the alternating period.
１亙旦盈１
上述のように本発明による液晶表示装置は、−個の液晶
セルにより三種類の色表示の組合わせを適宜選択し得る
ので、表示装置として掻めて有用であり、また各種表示
のデザインの多様化への対応は容易となる。さらに、強
誘電性液晶を用いているので、応答速度は一般のネマテ
ィック液晶の数十ｍ５ｅｃに比し数百μＳｅｃ以下と向
上され、これにより液晶への交代印加電界に対する追従
性も優れ混色表示が掻めて円滑になされる等の利点があ
る。1. As mentioned above, the liquid crystal display device according to the present invention is extremely useful as a display device, and can be used in various ways, since the liquid crystal display device according to the present invention can suitably select a combination of three types of color display using - liquid crystal cells. It becomes easy to respond to the diversification of display designs. Furthermore, since a ferroelectric liquid crystal is used, the response speed is improved to several hundred microseconds or less compared to several tens of meters5ec for general nematic liquid crystals, and this provides excellent followability to alternating electric fields applied to the liquid crystal, allowing mixed color display. It has the advantage that it can be scraped smoothly.
第１図は本発明の液晶表示装置の一実施例を示す概略断
面図、第２図は配向膜のラビング方向と偏光板の吸収軸
との関係を示す模式図、第３図は印加電界を変えた場合
の液晶配向方向とラビング方向との関係を概略的に示す
図である。
１．１°０９０．基板、２．２°０１９．透明導電膜、
３．３°０．４．配向膜、４ 、、、、液晶層、５１．
５、シール材、６ 、、、、偏光板。FIG. 1 is a schematic cross-sectional view showing an embodiment of the liquid crystal display device of the present invention, FIG. 2 is a schematic view showing the relationship between the rubbing direction of the alignment film and the absorption axis of the polarizing plate, and FIG. FIG. 3 is a diagram schematically showing the relationship between the liquid crystal alignment direction and the rubbing direction when the liquid crystal alignment direction is changed. 1.1°090. Substrate, 2.2°019. transparent conductive film,
3.3°0.4. Alignment film, 4, liquid crystal layer, 51.
5. Sealing material, 6. Polarizing plate.
Claims (1)
角が約４５°の強誘電性液晶に黒色色素を混入してなる
液晶層を封緘せしめ、上記基板の一方の外側表面上に二
色偏光板が貼着されていることを特徴とする液晶表示装
置。A liquid crystal layer made of a ferroelectric liquid crystal mixed with a black dye and having a tilt angle of approximately 45° is sealed between a pair of substrates having a transparent conductive film and an alignment film, and a liquid crystal layer is formed on the outer surface of one of the substrates. A liquid crystal display device characterized in that a color polarizing plate is attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60017571A JPS61179420A (en) | 1985-01-31 | 1985-01-31 | liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60017571A JPS61179420A (en) | 1985-01-31 | 1985-01-31 | liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61179420A true JPS61179420A (en) | 1986-08-12 |
Family
ID=11947598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60017571A Pending JPS61179420A (en) | 1985-01-31 | 1985-01-31 | liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61179420A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS585016B2 (en) * | 1980-12-02 | 1983-01-28 | 服部 喜久夫 | Noodle string cutting machine |
| JPS58173719A (en) * | 1982-04-05 | 1983-10-12 | Hitachi Ltd | Liquid crystal display |
-
1985
- 1985-01-31 JP JP60017571A patent/JPS61179420A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS585016B2 (en) * | 1980-12-02 | 1983-01-28 | 服部 喜久夫 | Noodle string cutting machine |
| JPS58173719A (en) * | 1982-04-05 | 1983-10-12 | Hitachi Ltd | Liquid crystal display |
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