JPS60191226A - Two-layered guest host liquid crystal display element - Google Patents

Two-layered guest host liquid crystal display element

Info

Publication number
JPS60191226A
JPS60191226A JP4669884A JP4669884A JPS60191226A JP S60191226 A JPS60191226 A JP S60191226A JP 4669884 A JP4669884 A JP 4669884A JP 4669884 A JP4669884 A JP 4669884A JP S60191226 A JPS60191226 A JP S60191226A
Authority
JP
Japan
Prior art keywords
liquid crystal
layer
crystal materials
cell
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
Application number
JP4669884A
Other languages
Japanese (ja)
Inventor
Haruichi Inoue
晴一 井上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stanley Electric Co Ltd
Original Assignee
Stanley Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Stanley Electric Co Ltd filed Critical Stanley Electric Co Ltd
Priority to JP4669884A priority Critical patent/JPS60191226A/en
Publication of JPS60191226A publication Critical patent/JPS60191226A/en
Pending legal-status Critical Current

Links

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)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To select an applied voltage properly to display various half tones by sealing the same kinds of liquid crystal materials different in electrooptic characteristic in one and the other layers of a two-layered structure cell. CONSTITUTION:Transparent electrodes 2A-2D are adhered to surfaces of glass substrates 1A-1C, which face one another, laminated at prescribed intervals so that respective display patterns coincide with one another, and substrates 1A-1C are laminated, and their peripheral parts are adhered with an adhesive 3 to obtain the two-layered structure cell. Surfaces facing one another of substrates 1A-1C and surfaces of electrodes 2A-2D are subjected to horizontal orientation treatment, and liquid crystal materials 4 having the electrooptic characteristic of a curve A are sealed in one layer of the cell, and liquid crystal materials 5 having the electrooptic characteristic of a curve B are sealed in the other layer. The horizontal orientation treatment is so performed that orientation directions of both faces of the substrate 1B are orthogonal to each other, and liquid crystal materials consist of a nematic liquid crystal having a positive dielectric anisotropy and multicolor coloring matters.

Description

【発明の詳細な説明】 （技術分野） 本発明は、ケ８スト・ホスト効果を利用した２層セル構
造の液晶表示素子に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a liquid crystal display element having a two-layer cell structure that utilizes the cast-host effect.

（技術的背景） ダスト・ホスト効果を利用してカラー表示を行う液晶表
示素子として２層セル構造のものがある。(Technical Background) There is a liquid crystal display element with a two-layer cell structure that performs color display using the dust-host effect.

この種の液晶表示素子は偏光板が不要であるとの利点を
有するが、その表示は単調な色差表示であり、表示機能
の多様化のために中間調表示を自在にできるものが望ま
れている。This type of liquid crystal display element has the advantage of not requiring a polarizing plate, but its display is a monotonous color difference display, and it is desired to have a device that can freely display intermediate tones in order to diversify display functions. There is.

（発明の目的） 本発明の目的は、自在に中間調表示を選択できる２層式
ダスト・ホスト液晶表示素子を提供することにある。(Object of the Invention) An object of the present invention is to provide a two-layer dust-host liquid crystal display element in which halftone display can be freely selected.

（発明の概要） 本発明は、所定間隔で積層する３枚のガラス基板の各対
向面に表示パターンが略同−となるように透明電極を被
着し、積層したガラス基板の周辺部を接着剤で接着して
２層構造のセルを形成し、かつセル内面に水平配向処理
をセンターガラス基板の両面の配向方向が略直交するよ
うに施して、セルの一方の層には正の誘電異方性を持つ
ネマチック液晶と多色性色素からなる液晶材料を封入し
、他方の層には電気光学的特性が異なる同種の液晶材料
を封入したことを特徴とするものであり、印加電圧の選
定によって所望の中間調表示を選択するようにしている
。(Summary of the Invention) The present invention involves applying transparent electrodes to each opposing surface of three glass substrates stacked at predetermined intervals so that display patterns are approximately the same, and bonding the peripheral portions of the stacked glass substrates. A cell with a two-layer structure is formed by bonding with an adhesive, and horizontal alignment treatment is applied to the inner surface of the cell so that the alignment directions on both sides of the center glass substrate are approximately perpendicular, and one layer of the cell has a positive dielectric anisotropy. It is characterized by encapsulating a liquid crystal material consisting of a tropic nematic liquid crystal and a pleochroic dye, and encapsulating the same type of liquid crystal material with different electro-optic properties in the other layer, and the selection of the applied voltage The desired halftone display is selected by the following.

（実施例） 第１図は本発明の一実施例を示すもので、所定の間隔で
積層する３枚のガラス基板ｌ　Ａ　、　ＩＢ　、　ｌ　
Ｏの各対向面に表示パターンが同一となるように透明電
極２Ａ’、２Ｂ、２０．２Ｄを被着し、各基板ＩＡ〜Ｉ
Ｃを積層してその周辺部を接着剤３で接着することによ
り、２層構造のセルを形成している。(Example) FIG. 1 shows an example of the present invention, in which three glass substrates l A , IB , l are laminated at predetermined intervals.
Transparent electrodes 2A', 2B, and 20.2D are deposited on each opposing surface of O so that the display pattern is the same, and each of the substrates IA to I
A cell with a two-layer structure is formed by laminating C and bonding its peripheral portion with adhesive 3.

セル内面、つまり各基板ＩＡ−ＩＣ！の対向面及び電極
２Ａ〜２Ｄ表面には水平配向処理を施しておき、セルの
一方の層には第２図に示す電気光学的特性（印加電圧−
透過光強度特性）曲線Ａの特性を有する液晶材料４を、
また他の層には第２図の曲線Ｂの特性を有する液晶材料
５をそれぞれ封入している。即ち、液晶材料５は、しき
い値電圧Ｖｌの特性Ａの液晶材料４が８０〜９０％動作
する電圧■２と略完全に動作する電圧■４の間にしきい
値電圧■３があるような特性とする。The inner surface of the cell, that is, each board IA-IC! The opposing surfaces of the cell and the surfaces of the electrodes 2A to 2D are subjected to horizontal alignment treatment, and one layer of the cell has electro-optical characteristics (applied voltage -
Transmitted light intensity characteristics) A liquid crystal material 4 having characteristics of curve A,
Further, each of the other layers is filled with a liquid crystal material 5 having the characteristics shown by curve B in FIG. That is, the liquid crystal material 5 has a threshold voltage (3) between the voltage (2) at which the liquid crystal material 4 with the characteristic A of the threshold voltage Vl operates 80 to 90% and the voltage (2) at which it operates almost completely. Characteristic.

前記水平配向処理は、センターガラス基板ＩＢの両面の
配向方向が略直交するように施すものとする。また、液
晶材料は、止の誘電異方性を持つネマチック液晶と多色
性色素からなる。The horizontal alignment treatment is performed so that the alignment directions on both sides of the center glass substrate IB are substantially perpendicular to each other. Further, the liquid crystal material is composed of a nematic liquid crystal having a dielectric anisotropy of a stop and a pleochroic dye.

前記透明電極２Ａ、２Ｄは可変電圧の駆動電源６の一端
に接続し、透明電極２Ｂ、２０はスイッチ７を介して前
記電源６の他端に接続している。The transparent electrodes 2A, 2D are connected to one end of a variable voltage driving power source 6, and the transparent electrodes 2B, 20 are connected to the other end of the power source 6 via a switch 7.

次に、作用について述べる。スイッチ７を閉じて液晶セ
ルに電圧■２を印加すると、第３図に示すように特性Ａ
の液晶材料４を封入した層（Ａ層と称す、る）のみがホ
メオトロピック層となり、表示としては中間調の表示と
なる。Next, we will discuss the effect. When switch 7 is closed and voltage 2 is applied to the liquid crystal cell, characteristic A is obtained as shown in Figure 3.
Only the layer containing the liquid crystal material 4 (referred to as layer A) serves as a homeotropic layer, and the display is of intermediate tone.

まだ、電圧■４を印加すると、第４図に示すようにＡ層
と特性Ｂの液晶材料５を封入した層（Ｂ層と称する）が
共にホメオトロピック層となり、略完全なオン状態の表
示となる。When voltage 4 is still applied, layer A and a layer containing liquid crystal material 5 with characteristic B (referred to as layer B) become homeotropic layers as shown in FIG. 4, resulting in a nearly completely on-state display. Become.

なお、印加電圧を電圧■１と■４の間で適宜変化させる
と、Ａ層、Ｂ層に電圧に応じた配列変化が生じてトーン
の異なる中間調表示となり、立体的表示の・場合の影の
表示など、表示内容に多様性を持だせることができる。In addition, if the applied voltage is changed appropriately between voltages (1) and (4), the arrangement changes in the A and B layers according to the voltage, resulting in a halftone display with different tones, and the effects of three-dimensional display. It is possible to bring diversity to the displayed content, such as the display of .

（発明の効果） 以上のように本発明によれば、２層構造のセルの一方の
層に正の誘電異方性を持つネマチック液晶と多色性色素
からなる液晶材料を、寸だ他方の層に電気光学的特性が
異なる同種の液晶材料をそれぞれ封入したので、印加電
圧の適宜な選定によって多様な中間調表示とすることが
できるようになり、表示機能の多様化が図れる。(Effects of the Invention) As described above, according to the present invention, a liquid crystal material consisting of a nematic liquid crystal having positive dielectric anisotropy and a pleochroic dye is placed in one layer of a cell with a two-layer structure, and the liquid crystal material is placed in the other layer. Since the same type of liquid crystal materials with different electro-optical properties are filled in each layer, various halftones can be displayed by appropriately selecting the applied voltage, and display functions can be diversified.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明に係る２層成ケ８スト・ホスト液晶表示
素子の一実施例を示す断面図、第２図は同実施例におけ
る液晶材料の電気光学的特性図、第３図及び第４図は動
作状態を説明するだめの断面図である。 ＩＡ〜ＩＣ・・・・・・ガラス基板、 ２Ａ〜２Ｄ・・・・・・透明電極、３・・・・・・接着
剤、４・・・・・特性Ａの液晶材料、 ５・・・・・・特性Ｂの液晶材料、 ６・・・・・・駆動電源。 第１図 第２図 ΔFIG. 1 is a cross-sectional view showing an embodiment of a two-layer composite host liquid crystal display element according to the present invention, FIG. 2 is an electro-optical characteristic diagram of the liquid crystal material in the same embodiment, and FIGS. FIG. 4 is a sectional view for explaining the operating state. IA-IC...Glass substrate, 2A-2D...Transparent electrode, 3...Adhesive, 4...Liquid crystal material with characteristic A, 5... ...Liquid crystal material with characteristic B, 6...Driving power supply. Figure 1 Figure 2 Δ

Claims (1)

【特許請求の範囲】[Claims] 所定間隔で積層する３枚のガラス基板の各対向面に表示
・ぞターンが略同−となるように透明電極を被着し、積
層したガラス基板の周辺部を接着剤で接着して２層構造
のセルを形成し、かつセル内面に水平配向処理をセンタ
ーガラス基板の両面の配向方向が略直交するように施し
て、セルの一方の層には正の誘電異方性を持つネマチッ
ク液晶と多色性色素からなる液晶材料を封入し、他方の
層には電気光学的特性が異なる同種の液晶材料を封入し
たことを特徴とする２層式ダスト・ホスト液晶表示素子
。Three glass substrates are laminated at predetermined intervals, and transparent electrodes are adhered to each opposing surface so that the display turns are approximately the same, and the periphery of the laminated glass substrates is bonded with adhesive to form two layers. A cell with a structure of A two-layer dust host liquid crystal display element characterized in that a liquid crystal material made of a pleochroic dye is encapsulated, and the other layer is encapsulated a liquid crystal material of the same type having different electro-optical characteristics.
JP4669884A 1984-03-12 1984-03-12 Two-layered guest host liquid crystal display element Pending JPS60191226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4669884A JPS60191226A (en) 1984-03-12 1984-03-12 Two-layered guest host liquid crystal display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4669884A JPS60191226A (en) 1984-03-12 1984-03-12 Two-layered guest host liquid crystal display element

Publications (1)

Publication Number Publication Date
JPS60191226A true JPS60191226A (en) 1985-09-28

Family

ID=12754589

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4669884A Pending JPS60191226A (en) 1984-03-12 1984-03-12 Two-layered guest host liquid crystal display element

Country Status (1)

Country Link
JP (1) JPS60191226A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0435676A2 (en) * 1989-12-28 1991-07-03 Sharp Kabushiki Kaisha Liquid crystal display device for displaying multiple or full colors
US5272553A (en) * 1988-10-28 1993-12-21 Sharp Kabushiki Kaisha Projection type liquid crystal display device with twisted nematic liquid crystal layers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185471A (en) * 1981-05-12 1982-11-15 Asahi Glass Co Ltd Liquid crystal display element
JPS5910929A (en) * 1982-07-12 1984-01-20 Toshiba Corp Liquid crystal color display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185471A (en) * 1981-05-12 1982-11-15 Asahi Glass Co Ltd Liquid crystal display element
JPS5910929A (en) * 1982-07-12 1984-01-20 Toshiba Corp Liquid crystal color display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5272553A (en) * 1988-10-28 1993-12-21 Sharp Kabushiki Kaisha Projection type liquid crystal display device with twisted nematic liquid crystal layers
EP0435676A2 (en) * 1989-12-28 1991-07-03 Sharp Kabushiki Kaisha Liquid crystal display device for displaying multiple or full colors

Similar Documents

Publication Publication Date Title
JP2621385B2 (en) Electro-optical device
JPH0220A (en) Color display device
JPH10133224A (en) Display device
JPS6271930A (en) Display device
JPS60191226A (en) Two-layered guest host liquid crystal display element
JP4175598B2 (en) Display / dimming element, control method thereof, and manufacturing method thereof
KR920006786A (en) LCD Display
JPS582872A (en) Liquid crystal display
JPH06273790A (en) Double-layered liquid crystal display element
JPS63144326A (en) Color liquid crystal display device
JPS5584914A (en) Liquid crystal display device
JPS5499450A (en) Liquid crystal multicolor display clock
JP2651843B2 (en) Operation method of liquid crystal element
JPH10228015A (en) Display device and its manufacture
CN209044242U (en) Liquid crystal display panel and liquid crystal display device
JPH0567934B2 (en)
JPH02214822A (en) Liquid crystal display element
JPS6014354B2 (en) liquid crystal display device
JP2780221B2 (en) Electro-optical device
JP2559215B2 (en) Liquid crystal display element
JP2815006B2 (en) Electro-optical device
JPH0157351B2 (en)
KR840001117B1 (en) Liquid crystal display
JPH0333721A (en) Color liquid crystal display device
JPS6059597B2 (en) Color liquid crystal display device