WO2003036371A1 - Cellule d'affichage ferro-electrique a cristaux liquides - Google Patents

Cellule d'affichage ferro-electrique a cristaux liquides Download PDF

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Publication number
WO2003036371A1
WO2003036371A1 PCT/RU2001/000449 RU0100449W WO03036371A1 WO 2003036371 A1 WO2003036371 A1 WO 2003036371A1 RU 0100449 W RU0100449 W RU 0100449W WO 03036371 A1 WO03036371 A1 WO 03036371A1
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WIPO (PCT)
Prior art keywords
bοlee
liquid
veschesτvο
ποκρyτiya
zhidκοκρisτallichesκοe
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PCT/RU2001/000449
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English (en)
Russian (ru)
Inventor
Igor Nikolaevich Kompanets
Alexander Lvovich Andreev
Evgeny Pavlovich Pozhidaev
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Utar International Ltd.
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Priority to PCT/RU2001/000449 priority Critical patent/WO2003036371A1/fr
Publication of WO2003036371A1 publication Critical patent/WO2003036371A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/02—Liquid crystal materials characterised by optical, electrical or physical properties of the components, in general
    • C09K19/0225—Ferroelectric
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • C09K19/46—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing esters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/58—Dopants or charge transfer agents
    • C09K19/586—Optically active dopants; chiral dopants

Definitions

  • LIQUID DISPLAYS ON LIQUID CRYSTALS are compared to plain displays.
  • Iz ⁇ b ⁇ azhenie nablyudae ⁇ sya or ⁇ i ⁇ ⁇ ⁇ zhdenii sve ⁇ a che ⁇ ez sl ⁇ y in ⁇ dn ⁇ m na ⁇ avlenii if ⁇ ba ⁇ v ⁇ dyaschie 2 trips are made by the operator, or by double light, if the second trip 6 is made by the manufacturer.
  • ⁇ a ⁇ izves ⁇ n ⁇ ⁇ iches ⁇ y ⁇ li ⁇ ( ⁇ ea ⁇ tsiya) zhid ⁇ g ⁇ ⁇ is ⁇ alla on v ⁇ zdeys ⁇ vie ele ⁇ iches ⁇ g ⁇ ⁇ lya yavlyae ⁇ sya ⁇ ezul ⁇ a ⁇ m changes aniz ⁇ ii ⁇ iches ⁇ i ⁇ sv ⁇ ys ⁇ v, ⁇ busl ⁇ vlenn ⁇ y ⁇ bschey ⁇ ien ⁇ atsiey dlinny ⁇ ⁇ sey m ⁇ le ⁇ ul in ⁇ beme sl ⁇ ya.
  • a non-linear element LB or a transient switch is used, which controls the supply of electrical power (Fig. 4a).
  • All transports are available in parallel - investigative, i.e. In parallel with each line and in line with the circuitry, as well as with the formation of the frame, the control signals are applied to all elements of the 1st stage, then the 2nd in less than 1 ms.
  • the effective matrix addressing provides the minimum requirements for the heat sink, but the technology for the manufacture of the matrix of the display cells and their handling are quite reliable.
  • ⁇ bychn ⁇ for ad ⁇ esatsii yachee ⁇ is ⁇ lzue ⁇ sya ma ⁇ itsa ⁇ n ⁇ len ⁇ chny ⁇ ⁇ anzis ⁇ v ( ⁇ ), ⁇ aya ⁇ m ⁇ nue ⁇ sya or ne ⁇ s ⁇ eds ⁇ venn ⁇ on s ⁇ e ⁇ lyanny ⁇ ⁇ dl ⁇ zh ⁇ a ⁇ (sY ⁇ ⁇ ⁇ 1azz) or ⁇ emniev ⁇ y ⁇ las ⁇ ine in ⁇ y ⁇ ganizue ⁇ sya and s ⁇ ema ad ⁇ esatsii.
  • Izves ⁇ na dis ⁇ leynaya yachey ⁇ a is ⁇ lzuyuschaya segne ⁇ ele ⁇ iches ⁇ e zhid ⁇ is ⁇ alliches ⁇ e vesches ⁇ v ⁇ with ⁇ i ⁇ aln ⁇ y d ⁇ bav ⁇ y, y ⁇ g ⁇ s ⁇ n ⁇ annaya ⁇ lya ⁇ izatsiya b ⁇ lshe n ⁇ l 10 / cm 2, sme ⁇ iches ⁇ y ug ⁇ l na ⁇ l ⁇ na b ⁇ lee 10 °, in ⁇ lschina sl ⁇ ya ⁇ edela ⁇ 1.5 - 2m ⁇ m and indutsi ⁇ vanny step s ⁇ i ⁇ ali geli ⁇ ida meny ⁇ e ⁇ lschiny sl ⁇ ya and It is less than 1 ⁇ m (patent 178 5327273, ⁇ 2 ⁇ 1 / 13, 1993).
  • ⁇ a ⁇ aya yachey ⁇ a ( ⁇ ig.Za) ⁇ n ⁇ si ⁇ sya ⁇ bis ⁇ abilnym geli ⁇ idaln ⁇ - s ⁇ abilizi ⁇ vannym s ⁇ u ⁇ u ⁇ am, y ⁇ y ⁇ sve ⁇ us ⁇ anie in ele ⁇ iches ⁇ m ⁇ le izmenyae ⁇ sya vsleds ⁇ vie ⁇ as ⁇ u ⁇ i s ⁇ i ⁇ ali geli ⁇ ida and m ⁇ zhe ⁇ ime ⁇ ⁇ l ⁇ two s ⁇ abilny ⁇ s ⁇ s ⁇ yaniya - 1 and 0 (no ⁇ lu ⁇ n ⁇ v). Otherwise, such a cell does not prevail with multiplex properties.
  • Izves ⁇ na zhid ⁇ is ⁇ alliches ⁇ aya dis ⁇ leynaya yachey ⁇ a is ⁇ lzuyuschaya segne ⁇ ele ⁇ iches ⁇ e zhid ⁇ is ⁇ alliches ⁇ e vesches ⁇ v ⁇ , ⁇ eds ⁇ avlyayuschee s ⁇ b ⁇ y ne ⁇ i ⁇ alnuyu sme ⁇ iches ⁇ uyu C zhid ⁇ is ⁇ alliches ⁇ uyu mixture ⁇ i ⁇ aln ⁇ y d ⁇ bav ⁇ y, y ⁇ g ⁇ s ⁇ n ⁇ annaya ⁇ lya ⁇ izatsiya b ⁇ lshe 10 n ⁇ l / cm 2 sme ⁇ iches ⁇ y ug ⁇ l na ⁇ l ⁇ na b ⁇ lee 10 °, ⁇ lschina sl ⁇ ya least 10 m ⁇ m and indutsi ⁇ vanny step s ⁇ i ⁇ ali geli ⁇ ida more than
  • ⁇ a ⁇ aya yachey ⁇ a ( ⁇ ig 3 b.) ⁇ n ⁇ si ⁇ sya ⁇ bis ⁇ abilnym ⁇ ve ⁇ n ⁇ s ⁇ n ⁇ - s ⁇ abilizi ⁇ vannym s ⁇ u ⁇ u ⁇ am have ⁇ y ⁇ change dvuluche ⁇ el ⁇ mleniya in ele ⁇ iches ⁇ m ⁇ le ⁇ is ⁇ di ⁇ vsleds ⁇ vie ⁇ e ⁇ e ⁇ ien ⁇ atsii dlinn ⁇ y ⁇ si m ⁇ le ⁇ uly SZH ⁇ on ug ⁇ l 20 ⁇ l ⁇ s ⁇ s ⁇ i yachey ⁇ i ⁇ i change zna ⁇ a ele ⁇ iches ⁇ g ⁇ ⁇ lya, ⁇ ien ⁇ i ⁇ uyuscheg ⁇ ve ⁇ ⁇ lya ⁇ izatsii ( ⁇ e ⁇ endi ⁇ ulya ⁇ n ⁇ g ⁇ dlinn ⁇ y ⁇ si) along its power lines.
  • the indicated cells do not have a stable stability due to the noticeable effect on the temperature of the anisotropic substances, which sets the initial rate of Substantial effects on the deterioration of stability and lightness may result in the exclusion of the so-called “faults” in the sense of relevance to them. Otherwise, the stability and speed of the cell are affected by the associated electric charges that are formed on the boundary of the liquid-crystalline material with anisotropic changes. “Anti - electrical” after worse connected worsens 8 is able to quickly turn off the state of polarization and light-up, and reduces the amount of memory. All of these drawbacks do not effectively use such cells to receive a good quality binary product.
  • the “temporary” (subfacial) means of organizing a gray scale is used only in active - matrix displays.
  • This arrangement ensures the induction of a helicoid with a step that is more than 1 ⁇ m in length, a remote polarization of more than 50 nl / cm 2 and an absorbance angle of more than 10 °.
  • the thickness of the liquid crystalline layer is more than 10 microns.
  • this display cell With the stability of this display cell, it possesses the property of multi-stability, which makes it possible to ensure the emission of a gray scale in the information display.
  • the gray scale can be realized physically, i.e. do not allow electrical devices or non-hazardous electrical equipment to interrupt or disrupt electrical cells, but inadequately disrupt electrical devices. It is available in the form of a practical, non-disruptive investigation and is stable. 10 optical conditions in which there is a zero rate of maximum intensity (Fig. 5), and the aforementioned conditions are conditional on the conditions of service. Instability in this case is just the case of multistability, realized at the minimum and maximum value of the control signal. Such as the extremes, and so on and all interconnecting states are well disposed of after turning off the field and are set to an irreversible impulse of the corresponding amplitude. The switching time is tens or hundreds of milliseconds.
  • the transfer period (a few micrometers) is set by the value of the spontaneous polarization of a liquid material. Mobility of a multistability begins to work at a large spanely polarization of liquid crystalline matter, when it is interchanged with it They are due to the partial compensation of the specific features in the layer and, as a consequence, to a decrease in its free energy.
  • the applied value of the applied voltage is applied to the electric voltage, it starts to control the electrical voltage and the When changing the voltage value, first switch off the cell area, but at maximum ⁇ , it is maximum, and other areas are not switched off. This and the manifestation of the periodic modulation of the light of the cell with a change in the ratio between the width of the observable width of the light and dark are observed (Fig. 6).
  • the integrated area of the dis- location cell is the largest and most common way to handle practical, non-disruptive.
  • ⁇ ya ⁇ d mi ⁇ s ⁇ m ⁇ l ⁇ sy ⁇ azlichayu ⁇ sya ⁇ chen che ⁇ small ⁇ e ⁇ i ⁇ d ⁇ l ⁇ s ⁇ zv ⁇ lyae ⁇ assin ⁇ nablyuda ⁇ even dis ⁇ leyn ⁇ y yachey ⁇ e with a ⁇ e ⁇ u ⁇ y 12x12 m ⁇ m d ⁇ s ⁇ a ⁇ chn ⁇ ⁇ dn ⁇ dnuyu ⁇ lu ⁇ n ⁇ vuyu ⁇ a ⁇ inu, s ⁇ anyayuschuyusya d ⁇ sleduyuscheg ⁇ ⁇ e ⁇ e ⁇ lyucheniya s ⁇ s ⁇ yaniya se ⁇ g ⁇ .
  • the cell for ⁇ 7 patent 2092883 allows to eliminate the faulty defects and to achieve high stability when not turning the light on.
  • t ⁇ 10 phenylbenzoates include one or more other organic compounds selected from group (111, IV), consisting of:
  • ⁇ me ⁇ g ⁇ ⁇ edlagaemye changes s ⁇ s ⁇ ava zhid ⁇ is ⁇ alliches ⁇ g ⁇ vesches ⁇ va in ⁇ m including u ⁇ chnenie dia ⁇ az ⁇ n ⁇ v and s ⁇ n ⁇ sheny s ⁇ de ⁇ zhaniya elemen ⁇ v in ne ⁇ i ⁇ aln ⁇ y sme ⁇ iches ⁇ y C zhid ⁇ is ⁇ alliches ⁇ y mixture and ⁇ i ⁇ aln ⁇ y d ⁇ bav ⁇ i and ⁇ a ⁇ zhe changes in s ⁇ s ⁇ av ⁇ i ⁇ aln ⁇ y d ⁇ bav ⁇ i in chas ⁇ n ⁇ s ⁇ i administering it ⁇ a, ⁇ zv ⁇ lili ⁇ luchi ⁇ segne ⁇ ele ⁇ iches ⁇ e zhid ⁇ is ⁇ alliches ⁇ e vesches ⁇ v ⁇ with specified electrical properties and parameters necessary to achieve multistability in the final phase of the substance (0.5 - 3.5 ⁇ m) and
  • ⁇ a ⁇ im ⁇ b ⁇ az ⁇ m is ⁇ lz ⁇ vanie ⁇ edlagaem ⁇ y ⁇ ns ⁇ u ⁇ tsii yachey ⁇ i and s ⁇ s ⁇ ava zhid ⁇ is ⁇ alliches ⁇ g ⁇ vesches ⁇ va ⁇ zv ⁇ lyae ⁇ ⁇ luchi ⁇ zhid ⁇ is ⁇ alliches ⁇ uyu dis ⁇ leynuyu yachey ⁇ u with mul ⁇ is ⁇ abilnymi sv ⁇ ys ⁇ vami, ⁇ bladayuschuyu vys ⁇ im bys ⁇ deys ⁇ viem (desya ⁇ i mi ⁇ se ⁇ und) and s ⁇ abiln ⁇ s ⁇ yu ⁇ a ⁇ ame ⁇ v sve ⁇ us ⁇ aniya, ch ⁇ delae ⁇ v ⁇ zm ⁇ zhnym ⁇ imenenie for its u ⁇ avleniya " ⁇ assivn ⁇ y ad ⁇ esatsii" and s ⁇
  • ⁇ ig. 3 the physical model of the display cell with the ferroelectric quick-drying iron with a step was greater (a) and less (b) than the thickness, where they are slightly ⁇ - vector electric field, located in the area of the very layer; ⁇ - a vector indicating the direction of the orientation of the longest molecules in the synthetic layers of ferroelectric liquid crystal; ⁇ 8 - vectorized polarization; p ⁇ is the pitch of the helicoid; B - normal to the absorbent; ⁇ - ⁇ dynamic axis, perpendicular plate 1; y - ⁇ dynal axis, parallel to the highway 1; ⁇ is a normal axis, which coincides with the direction with the vector; ⁇ - the angle of inclination of the longest molecules to the ratio of vector (angle between the vectors ⁇ and b); ⁇ - angle in the area ⁇ between normal to plates and vector ⁇ 3 ; ⁇ and ⁇ - directions for the general promotion of analysis and analysis; ⁇ ⁇
  • ⁇ ig. 4 basic diagram of addressing display cells: a - active matrix (with non-linear elements); B - passive matrix; ⁇ _ - number of pages; ⁇ ) - number of column;
  • the modulation of the light is carried out by the observation of the elec- tronic unit.
  • imperceptible layers are impaired and dielectric plaques, while the pitch is helical, and is more pronounced, the
  • the ferroelectric liquid crystal display cell in the light start mode works as follows (Fig. 1a, 3b).
  • the intensity is on 1 ⁇ .
  • the voltage ⁇ of the vector ⁇ in the cell depends on the sign and voltage of source 7, i.e. directions and meanings ⁇ Motor ⁇ Writ ⁇ .
  • the angle between the vectors ⁇ (+ ⁇ effet ) and ⁇ (- ⁇ supplementary ) is 2 ⁇ ⁇ .
  • ⁇ sli zhid ⁇ is ⁇ alliches ⁇ e vesches ⁇ v ⁇ na ⁇ di ⁇ sya in ⁇ le + ⁇ ⁇ , and ⁇ lya ⁇ iza ⁇ ⁇ ien ⁇ i ⁇ van ⁇ a ⁇ , ch ⁇ eg ⁇ ⁇ s ⁇ a ⁇ allelna ve ⁇ u ⁇ (+ ⁇ n), ⁇ sve ⁇ ⁇ as ⁇ s ⁇ anyae ⁇ sya vd ⁇ l glavn ⁇ y ⁇ iches ⁇ y ⁇ si and ⁇ mu not is ⁇ y ⁇ yvae ⁇ dvuluche ⁇ el ⁇ mleniya and ⁇ gda ⁇ i ⁇ ⁇ / 2 yachey ⁇ a not emits light.
  • a change in the light emitting of a cell occurs due to a change in the anisotropy of a liquid material and a change in the absolute value of the voltage and the emissive voltage.
  • P ⁇ sle vy ⁇ lyucheniya ele ⁇ iches ⁇ g ⁇ na ⁇ yazheniya ⁇ is ⁇ chni ⁇ a 7 s ⁇ s ⁇ yanie sve ⁇ us ⁇ aniya yachey ⁇ i, ⁇ busl ⁇ vlenn ⁇ e eg ⁇ velichin ⁇ y (ig ⁇ ae ⁇ ⁇ l ⁇ a ⁇ am ⁇ li ⁇ uda, ⁇ a ⁇ and dli ⁇ eln ⁇ s ⁇ im ⁇ ulsa na ⁇ yazheniya) m ⁇ zhe ⁇ by ⁇ s ⁇ anen ⁇ on dli ⁇ eln ⁇ e v ⁇ emya (d ⁇ June 10 s and b ⁇ lee) or izmenen ⁇ ⁇ u ⁇ em ⁇ dachi n ⁇ v ⁇ g ⁇ na ⁇ yazheniya d ⁇ ug ⁇ y ⁇ lya ⁇ n ⁇ s ⁇ i and quantities.
  • Such and solid, liquid crystalline ferroelectrics are characterized by the presence of a hysteresis loop.
  • the hysteresis pattern of the hysteresis circuit for the intensity of the light that has passed through the multistable liquid crystal display cell is shown in FIG. 6a.
  • ⁇ ⁇ ch ⁇ e C ⁇ iv ⁇ y is ⁇ chni ⁇ na ⁇ yazheniya I was v ⁇ lyuchen and yachey ⁇ a za ⁇ mnila ⁇ sled ⁇ va ⁇ eln ⁇ s ⁇ bely ⁇ ( ⁇ z ⁇ achny ⁇ ) and che ⁇ ny ⁇ (ne ⁇ z ⁇ achny ⁇ ) ⁇ l ⁇ s ( ⁇ is. 6b).
  • Multistable cells differ in that they 21 remembers the occurrence of any voltage on the short circuit of the hysteresis, in which the voltage source is turned off. With this, the value of the light absorption of the cell is divided by the ratio of the areas of white and black areas. Transferring the area to the front of the unit is limited to the square of the liquid media ⁇ 8 ⁇ 2 .
  • a ferroelectric liquid crystal display cell in the light switch mode works with the following ( ⁇ . ⁇ rion).]
  • a change in the light of a cell occurs as a result of the same change in the anisotropy of a liquid crystalline substance and a change in the absolute value and the direction of the electric voltage (electrically).
  • the voltage ⁇ of the vector ⁇ in the cell depends on the sign and voltage of source 7, i.e. directions and meanings ⁇ Motor ⁇ Writ ⁇ .
  • the angle between the vectors ⁇ (+ ⁇ effet ) and ⁇ (- ⁇ jan ) is 2 ⁇ .
  • the intensity of light 1 and the maximum possible light of the cell are shared by the same conditions (1) and (2).
  • composition of the oil %:
  • the pitch of the helix of the helium is - - ⁇ , before the ferroelectrical home users.
  • composition of the oil %: HEXYLOXYNOPHYLTHYPYRIMIDINE 20.8
  • the remote polarization of this mixture at a temperature of 25 ° C is 110 NL / cm 2 , the helix of the spiral is> - ⁇ , and the fermentation segment is 4 ⁇ .

Abstract

Cette invention relève du domaine de l'optoélectronique et peut être utilisée dans des dispositifs d'affichage d'informations disposant d'une grande capacité d'information. La cellule d'affichage ferro-électrique à cristaux liquides comprend deux plaques diélectriques transparentes disposées parallèlement l'une par rapport à l'autre. Les surfaces externes de ces plaques sont revêtues d'un revêtement de polarisation, les surfaces internes de ces plaques étant revêtues de revêtements conducteurs transparents séparés l'un de l'autre d'une distance comprise entre 0,5 et 3,5 mkm. Un revêtement anisotropique transparent présentant une épaisseur égale ou inférieure à 20 nm et comportant des discontinuités structurelles réparties de manière stochastique sur ces revêtements est appliqué sur un ou sur les deux revêtements conducteurs. L'espace qui sépare les revêtements conducteurs est comblé d'une substance de cristaux liquides ferro-électrique dont la composition comprend un mélange de cristaux liquides C non chiral smectique de phényl-pyrimidines et de phényl-benzoates substitués et d'un additif chiral composé de dérivés optiquement actifs d'acide terphényl-dicarbonique, lequel additif représente entre 25 et 40 % de la masse totale de la composition de cristaux liquides. Ces dérivés permettent d'obtenir un pas de l'hélice supérieur à 1mkm et une polarisation spontanée supérieure à 50 nKl/cm2. La substance de cristaux liquides intéragit directement avec le revêtement conducteur au niveau des discontinuités structurelles du revêtement anisotropique. Dans une seconde variante, l'un des revêtements conducteurs se présente sous une forme réfléchissante. La présente invention concerne également les composants de la composition de cristaux liquides.
PCT/RU2001/000449 2001-10-26 2001-10-26 Cellule d'affichage ferro-electrique a cristaux liquides WO2003036371A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4813767A (en) * 1980-01-08 1989-03-21 Clark Noel A Surface stabilized ferroelectric liquid crystal devices
DE4011803A1 (de) * 1990-04-12 1991-10-17 Hoechst Ag Kryptanden bzw. coronanden enthaltende ferroelektrische fluessigkristallmischung
RU2030390C1 (ru) * 1988-04-27 1995-03-10 Московское научно-производственное объединение "НИОПИК" Оптически активные сложные диэфиры ароматических трехкольчатых кислот в качестве хиральных компонентов для жидкокристаллических сегнетоэлектриков
RU2070191C1 (ru) * 1992-09-04 1996-12-10 Московское научно-производственное объединение "НИОПИК" Производные хлордифторметоксифенила и жидкокристаллическая композиция для электрооптических устройств на их основе
RU2092883C1 (ru) * 1995-06-07 1997-10-10 Физический институт им.П.Н.Лебедева РАН Жидкокристаллическая сегнетоэлектрическая дисплейная ячейка
RU2140663C1 (ru) * 1998-02-24 1999-10-27 Мирошин Александр Александрович Жидкокристаллический индикаторный элемент

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4813767A (en) * 1980-01-08 1989-03-21 Clark Noel A Surface stabilized ferroelectric liquid crystal devices
RU2030390C1 (ru) * 1988-04-27 1995-03-10 Московское научно-производственное объединение "НИОПИК" Оптически активные сложные диэфиры ароматических трехкольчатых кислот в качестве хиральных компонентов для жидкокристаллических сегнетоэлектриков
DE4011803A1 (de) * 1990-04-12 1991-10-17 Hoechst Ag Kryptanden bzw. coronanden enthaltende ferroelektrische fluessigkristallmischung
RU2070191C1 (ru) * 1992-09-04 1996-12-10 Московское научно-производственное объединение "НИОПИК" Производные хлордифторметоксифенила и жидкокристаллическая композиция для электрооптических устройств на их основе
RU2092883C1 (ru) * 1995-06-07 1997-10-10 Физический институт им.П.Н.Лебедева РАН Жидкокристаллическая сегнетоэлектрическая дисплейная ячейка
RU2140663C1 (ru) * 1998-02-24 1999-10-27 Мирошин Александр Александрович Жидкокристаллический индикаторный элемент

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