WO1998021172A1 - Derives de phenylpolyhaloalkylether, compositions de cristaux liquides contenant ces derives, et element d'affichage a cristaux liquides - Google Patents
Derives de phenylpolyhaloalkylether, compositions de cristaux liquides contenant ces derives, et element d'affichage a cristaux liquides Download PDFInfo
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- WO1998021172A1 WO1998021172A1 PCT/JP1997/004114 JP9704114W WO9821172A1 WO 1998021172 A1 WO1998021172 A1 WO 1998021172A1 JP 9704114 W JP9704114 W JP 9704114W WO 9821172 A1 WO9821172 A1 WO 9821172A1
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- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
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Definitions
- Phenyl polyhaloalkyl ether derivative Phenyl polyhaloalkyl ether derivative, liquid crystal composition containing the same, and liquid crystal display device
- the present invention relates to a liquid crystal compound and a liquid crystal composition, and more specifically, a novel liquid crystal compound phenylalkyl ether ⁇ -alkyl ether derivative which can exhibit various physical properties suitable for use as an electro-optical display material, and
- the present invention relates to a liquid crystal composition and a liquid crystal display device formed using the liquid crystal composition.
- Liquid crystal display elements are used in watches, calculators, various measuring instruments, vehicle panels, word processors, electronic organizers, printers, computers, televisions, and the like. This utilizes optical anisotropy and dielectric anisotropy among various physical properties of liquid crystal compounds.
- the display methods are dynamic scattering type (DS type) and guest-host type. (GH type), twisted nematic type (TN type), super twisted nematic type (STN type), thin film transistor type 1 (TFT type) and ferroelectric liquid crystal (FLC) are known.
- Known driving methods include a static driving method, a time-division driving method, an active matrix driving method, and a two-frequency driving method.c Recently, a liquid crystal display element with a higher display quality has been particularly demanded. For this reason, there is an increasing demand for active matrix display devices represented by, for example, a TFT type.
- the liquid crystal material used in any display element must be stable against moisture, air, heat, light, etc., exhibit a liquid crystal phase over as wide a temperature range as possible around room temperature, and have low viscosity. It must have good compatibility, have a large ⁇ , and have an optimal ⁇ . However, at present, no single compound satisfies all of these conditions, and the current situation is that a liquid crystal composition obtained by mixing several types of liquid crystal compounds and non-liquid crystal compounds is used. It is.
- TFT-type liquid crystal display element One of the characteristics particularly required for a TFT-type liquid crystal display element is that the contrast of the display screen is high. Therefore, the liquid crystal material used for this purpose has a large specific resistance value in addition to the above conditions. That is, the voltage holding ratio (VHR) must be large. In recent years, low-voltage driving has been required for TFT-type liquid crystal display devices, To meet this demand, a liquid crystal compound or a liquid crystal composition having a larger ⁇ £ than the liquid crystal material used in the TFT type liquid crystal display element has been required.
- this compound has a higher specific resistance value than a compound having a cyano group, it is used industrially, but has a small ⁇ of 4 and cannot realize a sufficiently low voltage drive.
- this compound does not necessarily have a large value of about 8, and has a structure in which more fluorine atoms are introduced than the compound of the above formula (10), so that the liquid crystal phase temperature range is very narrow and the clearing point is low.
- —Difluorophenyl) Ethyl It has been confirmed that they are about 60 ° C and about 25 ° C lower than cyclohexane, respectively. ).
- Japanese Patent Application Laid-Open No. H04-506631 discloses fluorine compounds represented by the formulas (12) and (13). Although these compounds have a relatively large ⁇ (for example, ⁇ of compound (13) is about 7), the compatibility with existing liquid crystal compounds is very poor especially at low temperatures, and It was not suitable as a component of the composition.
- a compound in which a fluorine atom has been introduced into an alkyl group R is disclosed in Japanese Patent Application Laid-Open No. H04-4-068681.
- the disclosed compound is a bicyclic or tricyclic compound having a terminal hexyl group and a phenyl group at the terminals, but cannot sufficiently improve the compatibility.
- a compound represented by the formula (14) has been disclosed, which has only a single bond as a bonding group in the center of the molecule, and has another bonding group such as 1,2- The ethylene group does not have this, and the substituent on the terminal phenyl group is limited to a fluorine atom.
- An object of the present invention is to solve the above-mentioned drawbacks of the prior art, and to provide a liquid crystal compound having a fluorine atom having general properties (low viscosity (high-speed response), high stability, and appropriate size).
- a liquid crystal compound having the following three characteristics improved without impairing the refractive index anisotropy value ( ⁇ ) of the compound a liquid crystal composition containing the compound, and a liquid crystal display device using the same. It is in.
- the present inventors have conducted intensive studies to achieve the above object, and as a result, have found that a liquid crystalline compound having a polyhydroxyalkyloxy group at a terminal and a 1,2-ethylene group or a 1,4-butylene group at a central bonding group. The inventors have found that the compound exhibits extremely excellent properties, and have completed the present invention.
- the configuration of the present invention is as follows.
- XX 2 each independently represents a 1,2-ethylene group, a 1,4-butylene group or a covalent bond, but they are not a covalent bond
- R 1 is a carbon atom having 1 to 20 carbon atoms.
- a methylene group in the group may be replaced by an oxygen atom, a vinylene group or an ethynylene group
- Y 1 represents — ⁇ CF 2 C FH— (CF 2 ) n -F (n is 0,
- A-CF 2 C 1 wherein the rings AA 2 independently of one another are 1,4-cyclohexylene rings, 1,4-cyclohexenylene rings or 1,4-phenylene rings, and A 3 is 1, It represents a 4-phenylene ring, in which carbon atoms may be replaced by oxygen atoms or nitrogen atoms, hydrogen atoms on the ring may be replaced by fluorine atoms or chlorine atoms, and m is 0 or 1. Make up the compound Each element may include those selected from their isotopes. ) A polyalkyl ether alkyl ether derivative represented by the formula:
- Ring A 2 is 2-fluoro-1,4-phenylene group (1 carbon atom is bonded to ring A 3 ) or 2,6-difluoro-1,4,4-phenylene group (1 carbon atom phenylene Le polyhaloalkyl ether induction member according to a but binds to the ring a 3) (3).
- a liquid crystal composition comprising at least one phenylpolyhaloalkyl ether derivative according to any of (6).
- R 2 represents an alkyl group having 1 to 10 carbon atoms
- Y 2 represents a fluorine atom, a chlorine atom, a trifluoromethoxy group, a difluoromethoxy group, a trifluoromethyl group, a difluoromethyl group, or a monofluoro group.
- L ′, L 2 , L 3 and L 4 independently represent a hydrogen atom or a fluorine atom;
- Z 1 and Z 2 independently represent a 1,2-ethylene group;
- A represents a vinylene group or a covalent bond, and a is 1 or 2.
- a liquid crystal composition comprising at least one compound selected from the group consisting of: -
- the first component contains at least one phenylpolyhaloalkyl ether derivative according to any one of (1) to (6), and the second component has a general formula (5), (6), (7) ), (8) and (9)
- R 3 represents a fluorine atom, an alkyl group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms, and in the alkyl group or alkenyl group, one or more methylene groups that are not adjacent to each other are The group may be substituted by an oxygen atom
- ring B represents 1,4-cyclohexylene, 1,4-phenylene or 1,3-dioxane-1,2,5-diyl
- ring C represents 1,4-cyclohexane.
- R 4 represents an alkyl group having 1 to 10 carbon atoms
- L 7 represents a hydrogen atom or a fluorine atom
- d is 0 or 1.
- R 5 represents an alkyl group having 1 to 10 carbon atoms; ring E and ring F independently represent 1,4-cyclohexidylene or 1,4-phenylene; Z 4 and Z 5 independently represents an oxycarbonyl group or a covalent bond, Z 6 represents an oxycarbonyl group or an ethynylene group, L 8 and L 9 independently represent a hydrogen atom or a fluorine atom, Y 3 represents a fluorine atom, a trifluoromethoxy group, a difluoromethoxy group, a trifluoromethyl group, a difluoromethyl group or a monofluoromethyl group, and e , f and g are independently 0 or 1).
- R 6 and R 7 independently represent an alkyl group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms, but are not adjacent to each other in the alkyl group or alkenyl group.
- One or more methylene groups may be substituted with an oxygen atom
- ring H represents 1,4-cyclohexylene, 1,4-phenylene or pyrimidine-1,2,5-diyl
- ring I represents Represents 1,4-cyclohexylene or 1,4-phenylene
- Z 6 represents an ethynylene group, an oxycarbonyl group, a 1,2-ethylene group, a 1-butene-3-ynylene group or a covalent bond
- Z 7 represents an O alkoxycarbonyl group or a covalent binding.
- R 8 and R s each independently represent an alkyl group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms, but are not adjacent to each other in the alkyl group or alkenyl group.
- One or more methylene groups may be substituted with an oxygen atom
- ring J represents 1,4-cyclohexylene, 1,4-phenylene or pyrimidine-12,5-diyl
- ring K represents 1 , 4-cyclohexylene, 1,4-phenylene or pyrimidine-2,5-diyl in which one or more hydrogen atoms on the ring may be substituted by fluorine atoms
- ring L is 1,4 -Cyclohexylene or 1,4-phenylene
- Z 8 and Z (1 independently represents an oxycarbonyl group, a 1,2-ethylene group or a covalent bond
- Z s represents a vinylene group, an ethynylene group, an oxycarbonyl
- a liquid crystal composition comprising at least one compound selected from the group consisting of general formulas (5), (6), (7), (8) and (9).
- a liquid display device comprising the liquid crystal composition according to any one of (10).
- the fluoropolyhaloalkyl ether derivative of the liquid crystal compound represented by the general formula (1) of the present invention has a 1,4-phenylene ring at a terminal and a side chain (Y 1 ) bonded thereto.
- CF 2 CFH— (CF 2 ) n — F (n is 0, 1, 2 or 3) or a structure having 10 CF 2 C 1 is the main feature. By doing so, it has both large ⁇ and good compatibility, low viscosity and high stability (high specific resistance), and most of them show a wide liquid crystal temperature range and are extremely chemically stable It becomes something.
- the liquid crystalline compound represented by the general formula (1) of the present invention exhibits the above-described excellent properties and is strong and has good compatibility (in other words, it is soluble in other liquid crystalline compounds and liquid crystal compositions). Therefore, the liquid crystal composition using this as a component does not impair the nematic phase even at a low temperature, for example, at 120 ° C. required from a practical viewpoint.
- the viscosity of the liquid crystal composition as a whole does not increase significantly, and the temperature dependence of the viscosity is extremely small and the stability is low. Is high, the degree of increase in viscosity is small even at low temperatures, and therefore, it is particularly useful as a component in preparing a liquid crystal composition having high-speed response.
- the specific resistance and the voltage holding ratio of the liquid crystal composition can be made extremely high, and a practical liquid crystal composition stable against external factors such as ultraviolet light and heating can be provided.
- R 1 is as described above, and widely refers to an alkyl group having 1 to 20 carbon atoms, an alkoxy group having 2 to 20 carbon atoms, an alkoxyalkyl group, an alkenyl group, and an alkynyl group. Can be shown, but preferably
- alkyl group examples include a methyl group, an ethyl group, an n-propyl group, an n-butyl group, an n-pentyl group, an n-hexyl group, an n-heptyl group and an n-octyl group, and a methoxy group as an alkoxy group.
- Ethoxy, n-propoxy, n-butoxy, n-pentyloxy and n-hexyloxy examples include a methyl group, an ethyl group, an n-propyl group, an n-butyl group, an n-pentyl group, an n-hexyl group, an n-heptyl group and an n-octyl group, and a methoxy group as an alkoxy group.
- Ethoxy, n-propoxy, n-butoxy, n-pentyloxy and n-hexyloxy
- Alkoxyalkyl groups include methoxymethyl, ethoxymethyl, n-propoxymethyl, n-butoxymethyl, n-pentyloxymethyl, n-hexyloxymethyl, methoxethyl, ethoxyl, n —Propoxyethyl group, n —butoxystyl group, n —pentyloxystyl group, methoxypropyl group, ethoxypropyl group, n —propoxyv ⁇ -pill group, n-butoxypropyl group, methoxybutyl group, ethoxybutyl group, n—propoxybutyl, methoxypentyl, ethoxypentyl and methoxyhexyl,
- Alkenyl groups include vinyl, 1-propenyl, 2-propenyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-pentenyl, 2-pentenyl, 3 -Pentenyl, 4-pentenyl, 1-hexenyl, 2-hexenyl, 3-hexenyl, 4-hexenyl, 5-hexenyl, 1-heptenyl, 2-heptenyl , 3-heptenyl, 4-heptenyl, 5-heptenyl, 6-heptenyl, 1-octenyl, 2-octenyl, 3-octenyl, 4-octenyl, 5-octenyl, 6- Octenyl and 7-octenyl groups,
- Alkynyl groups include ethynyl, 1-propynyl, 2-propynyl, 1-butynyl, 2-butynyl, 3-butynyl, 1-pentynyl, 2-pentynyl, 3-pentynyl, 4-pentynyl, 1-hexynyl, 2-hexynyl, 3-hexynyl, 4-hexynyl, 5-hexynyl, 1-heptinyl Nyl, 2-heptynyl, 3-heptynyl, 4-heptynyl, 5-heptynyl, 6-heptynyl, 1-year-old butynyl, 2-year-old butynyl, 3-octynyl, Examples thereof include a 4-octynyl group, a 5-octynyl group, a 6-octynyl group and a 7-octynyl group.
- ring eight 1, A 2 and A 3 also carbon atom of the force ⁇ in the rings are as described above is replaced by an oxygen atom or a nitrogen atom, erosion ring for the former, 1, 3 - Jiokisan A ring and a 1,4-dioxane ring, preferably a 1,3-dioxane ring; for the latter, a pyridine ring, a pyrimidine ring, a pyrazine ring, a pyridazine ring, a triazine ring, a tetrazine ring and a pyridine ring, preferably A pyridine ring and a pyrimidine ring can be mentioned.
- 1,4-cyclohexylene ring, 1,4-cyclohexenylene ring and 1,4-phenylene ring in which carbon atoms in the ring are not replaced by oxygen atoms or nitrogen atoms are also preferable rings. Needless to say.
- Each element constituting the compound represented by the general formula (1) may include those selected from their isotopes. That is, this does not cause a substantial difference in the liquid crystal characteristics of the compound.
- ⁇ and ⁇ of the compound of the present invention can be further increased by appropriately selecting and combining the above-mentioned YR ] , rings AA 2 and A 3 and the above-mentioned XX 2 and m with reference to XX 2 and m. Can be.
- the compound of the present invention is particularly suitable as a component of a liquid crystal composition for TFT.
- the compound of the present invention may be used for other purposes, for example, ⁇ , STN, guest host mode, polymer dispersed liquid crystal display element, It is a liquid crystal compound that is also effective as a component of a liquid crystal compound for dynamic scattering mode or FLC.
- the liquid crystal composition provided by the present invention comprises at least one liquid crystalline compound represented by the general formula (1) as a first component.
- the content be 0.1 to 99.9% by weight based on the weight of the liquid crystal composition in order to exhibit excellent characteristics, and preferably! 550% by weight, more preferably 3-20% by weight.
- the liquid crystal composition of the present invention may include only the first component, but in addition to the second component, And at least one compound selected from the group consisting of the general formulas (2), (3) and (4) referred to above (hereinafter referred to as the second component A) and Z or the general formula (5)
- a mixture of at least one compound selected from the group consisting of (9) to (9) (hereinafter referred to as the second component B) is further used.
- an optically active compound, a threshold voltage, a liquid crystal Known compounds can be mixed for the purpose of adjusting the phase temperature range, ⁇ , ⁇ , viscosity and the like.
- preferred examples of the compound included in the general formula (2) include the following formulas (2-1) to (2-15); Examples of the compounds represented by the formulas (3-1) to (3-48), and the compounds represented by the formulas (411) to (4-53) are preferred examples of the compounds included in the general formula (4). be able to.
- the compounds represented by these general formulas (2) to (4) have a positive ⁇ £, are excellent in thermal stability and chemical stability, and have a particularly high voltage holding ratio (resistivity value). This is an indispensable compound when preparing a liquid crystal composition for TFT that requires high reliability.
- the amount of the compound used is preferably in the range of 1 to 99% by weight based on the total weight of the liquid crystal composition, but is preferably 10 to 97% by weight. %, More preferably 40 to 95% by weight. In that case, the compounds represented by the general formulas (5) to (9) may be partially contained.
- the compounds represented by the above general formulas (2) to (4) can also be used for preparing a liquid crystal composition for an STN display mode or a normal TN display mode.
- preferred examples of the compound contained in the general formula (5) include the following formulas (5-1) to (5-24); Preferred examples of the compounds included in the formulas (6-1) to (6-3) and the general formula (7) include compounds represented by the formulas (7-1) to (7-28), respectively. be able to.
- the compounds represented by these general formulas (5) to (7) have a large ⁇ and a large ⁇ , and are particularly used for the purpose of reducing the threshold voltage of the liquid crystal composition. It is also used for adjusting viscosity and ⁇ , expanding the nematic range such as increasing the clearing point, and improving the steepness of the threshold voltage.
- preferred examples of the compound contained in the general formula (8) include the following formulas (8-1) to (8-8), and preferred examples of the compound contained in the general formula (9). Examples include compounds represented by formulas (9-11) to (911).
- the compounds represented by these general formulas (8) and (9) show a negative or slightly positive ⁇ -the former is mainly for the purpose of lowering the viscosity of the liquid crystal composition or adjusting the ⁇ , and the latter is for clearing point. It is used for the purpose of widening the nematic range such as increasing the height or adjusting ⁇ ⁇ .
- the above-mentioned second component is an indispensable compound particularly when a liquid crystal composition for an STN display system or a second display system is prepared.
- the amount used is preferably in the range of 1 to 99% by weight based on the total weight of the liquid crystal composition, but is preferably 1%. It is 0 to 97% by weight, more preferably 40 to 95% by weight. In this case, some of the compounds represented by the general formulas (2) to (4) may be used.
- the liquid crystal composition provided according to the present invention may be prepared by a method known per se, for example, a method in which various components are dissolved under reduced pressure and at a high temperature, or a method in which various components are dissolved in an organic solvent and mixed, and then mixed with a solvent under reduced pressure. It is generally prepared by a method of distilling off.
- additives are well known to those skilled in the art and are described in detail in the literature.
- chiral dopants which have the effect of inducing the helical structure of the liquid crystal to adjust the required twist angle and preventing reverse twist, are added.
- liquid crystal composition for a guest host (GZH) mode can be obtained.
- a dichroic dye such as a merocyanine-based, styryl-based, azo-based, azomethine-based, azoxy-based, quinophthalone-based, anthraquinone-based, or tetrazine-based dye
- GZH guest host
- the liquid crystal composition according to the present invention can be used as an NCAP prepared by converting a nematic liquid crystal into a micro force cell, or a polymer network liquid crystal display prepared by forming a three-dimensional knitted polymer in a liquid crystal.
- liquid crystal compositions for polymer dispersed liquid crystal display devices represented by liquid crystal display devices (PNL CD)
- EB birefringence control
- DS dynamic scattering
- the liquid crystalline compound represented by the general formula (1) of the present invention can be prepared by a known organic synthetic chemistry method, for example, a method described in Organic Synthense, Organic Reactions, Laboratory Chemistry Course (Maruzen), etc. It can be easily manufactured by combining them.
- Lilyyl iodide (15) produced by a known method is lithiated to obtain a lithium reagent (16), which is converted to aryl boric acid (17), which is then converted to aryl boric acid (18). ) To obtain (1) of the compound of the present invention. Can be.
- aryl iodide 15
- BuLi n-butyllithium, sec-butyllithium or tert-butyllithium
- the conversion into aryl boric acid (17) is carried out by reacting the lithium reagent or Grignard reagent (16) obtained as described above with triisopropyl borate or trimethyl borate, and then acidifying the product with acid. This can be done by decomposition (J. Org. Chem., _4_9_, 5237 (1894)).
- the force-coupling between aryl boric acid (17) and brominated broth (18) may be carried out in the presence of sodium carbonate and a catalytic amount of palladium (0) compound (coupling, _ ⁇ J_, 1043 (1993)).
- the lithium reagent (19) is reacted with 1,2-dibromoethane or 1,4-dibutane mobutane (22) to obtain a compound (24), which is then reacted with triphenylphosphine to form a Wittig reagent ( 25) is obtained.
- the ketone (20) is reacted therewith in the presence of a base to give an orefin derivative (26), and then hydrogenated to obtain the compound (1) of the present invention.
- C indicates a crystal
- N indicates a nematic phase
- S indicates a smectic phase
- I indicates an isotropic liquid.
- R ′ n—pentyl group
- AA 2 1,4-cyclohexylene ring
- X ′ l
- X 2 covalent bond
- CH 3 CH 2 CH CHCH 2 - ⁇ >-(CH 2 ) 4- K -OCF 2 CI
- CH 3 CH CH (CH 2 ) 2- ⁇ one ⁇ h one OCF 2 CFHCF 3
- CH 2 CH 2 CH CH (CH 2 ) : — (CH ⁇ - ⁇ j) -OCF 2 CFHCF 2 CF 3
- the compound N 0. applied to the compounds of the present invention is the same as that shown in the above Examples-The content of the compounds means% by weight unless otherwise specified.
- the characteristic data of the usage examples are T N1 (clearing point), ⁇ (viscosity: measurement temperature 20.0 ° C), ⁇ (refractive index anisotropy: measurement temperature 25.0 ° C), ⁇ ⁇ (Dielectric anisotropy: measurement temperature 25.0 ° C) and V th (threshold voltage: measurement temperature 25.0 ° C).
- Example 3 (use example 1)
- a liquid crystal composition having the following compound content was prepared.
- a liquid crystal composition having the following compound content was prepared.
- V th 2.0 V
- Example 5 (Example 3)
- a liquid crystal composition having the following compound content was prepared.
- V th 0.8 V
- Example 6 (use example 4)
- a liquid crystal composition having the following compound content was prepared.
- V th 2.30 V
- Example 7 (Use example 5)
- a liquid crystal composition having the following compound content was prepared.
- V th 1.25 V
- Example 8 (Application example 6)
- a liquid crystal composition having the following compound content was prepared.
- V th 1.75 V
- Example 9 (Usage example 7)
- a liquid crystal composition having the following compound content was prepared.
- V th 1.00 V
- Example 10 (Usage example 8)
- a liquid crystal composition having the following compound content was prepared.
- V th 2.40 V
- Example 11 (Example 9)
- a liquid crystal composition having the following compound content was prepared. '
- Example 1 2 (Application example 10)
- a liquid crystal composition having the following compound content was prepared.
- N 0 1 1 3
- a liquid crystal composition having the following compound content was prepared.
- V th 2.10 V
- a liquid crystal composition having the following compound content was prepared.
- a liquid crystal composition having the following compound content was prepared.
- V TH 1.95 (V)
- Example 17 (Example of use 15)
- a liquid crystal composition having the following compound content was prepared.
- a liquid crystal composition having the following compound content was prepared.
- V th 1.43V
- a liquid crystal composition having the following compound content was prepared.
- V lh 2 3 5 V
- Example 20 (Example of use 18)
- a liquid crystal composition having the following compound content was prepared.
- V th 1.77 V
- a liquid crystal composition having the following compound content was prepared.
- V th 2.29 V
- Example 22 (Use example 20)
- a liquid crystal composition having the following compound content was prepared.
- V th 1.75 V
- Example 23 (Example of use 2 1)
- a liquid crystal composition having the following compound content was prepared.
- V th 1.91 V
- Example 24 instead of the compound of No. 96 or No. 97, a compound represented by the formula (4-133) or (4-134) wherein both R 2 are C 5 HM— is used as a conventional example.
- a liquid crystal composition was prepared in the same manner as in Example 24 except for the above, and the physical properties were determined in the same manner as in Example 24. The results were as follows.
- the liquid crystal compound of the present invention is a fluorine-containing liquid crystal compound. Without deteriorating the specific properties, it exhibits a particularly large thickness, good phase solubility with other liquid crystal compounds, and a nematic phase in a wide temperature range.
- liquid crystal composition having good characteristics can be achieved.
- the liquid crystal display device formed using the liquid crystal composition containing the liquid crystal compound of the present invention is used for watches, calculators, various measuring instruments, automobile panels, word processors, electronic notebooks, printers, computers, televisions and the like.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Liquid Crystal Substances (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97912427A EP0945422A4 (en) | 1996-11-13 | 1997-11-12 | PHENYLPOLYHALOALYCLETHER DERIVATIVES, THIS CONTAINING LIQUID CRYSTAL PREPARATION AND LIQUID CRYSTAL DISPLAY ELEMENT |
AU49642/97A AU4964297A (en) | 1996-11-13 | 1997-11-12 | Phenyl polyhaloalkyl ether derivatives, liquid-crystal composition containing the same, and liquid-crystal display element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8/316958 | 1996-11-13 | ||
JP8316958A JPH10139709A (ja) | 1996-11-13 | 1996-11-13 | フェニルポリハロアルキルエーテル誘導体、これを含む液晶組成物および液晶表示素子 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998021172A1 true WO1998021172A1 (fr) | 1998-05-22 |
Family
ID=18082839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/004114 WO1998021172A1 (fr) | 1996-11-13 | 1997-11-12 | Derives de phenylpolyhaloalkylether, compositions de cristaux liquides contenant ces derives, et element d'affichage a cristaux liquides |
Country Status (5)
Country | Link |
---|---|
US (1) | US20010019121A1 (ja) |
EP (1) | EP0945422A4 (ja) |
JP (1) | JPH10139709A (ja) |
AU (1) | AU4964297A (ja) |
WO (1) | WO1998021172A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010097781A (ko) * | 2000-04-26 | 2001-11-08 | 김순택 | 1-[2-(트랜스-4-알킬 싸이클로헥실) 에틸]-4-아릴싸이클로헥스-1-엔 및 이를 포함하는 액정 조성물 |
PT1474425E (pt) | 2002-01-07 | 2006-09-29 | Eisai Co Ltd | Desazapurinas e sua utilizacao |
JP4776279B2 (ja) * | 2005-06-09 | 2011-09-21 | 株式会社Adeka | 新規化合物及び液晶組成物 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07118184A (ja) * | 1993-08-30 | 1995-05-09 | Chisso Corp | 1,1,2,3,3,3−ヘキサフルオロプロピル部位を持つ新規液晶性化合物および液晶組成物 |
JPH07316082A (ja) * | 1994-03-29 | 1995-12-05 | Chisso Corp | 液晶性化合物および液晶組成物 |
US5562858A (en) * | 1994-04-14 | 1996-10-08 | Merck Patent Gesellschaft Mit Beshrankter Haftung | Hexafluoropropyl ethers, and liquid-crystalline medium |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3714043A1 (de) * | 1987-04-28 | 1988-11-17 | Merck Patent Gmbh | Elektrooptisches fluessigkristallanzeigeelement |
DE4142519B4 (de) * | 1991-01-31 | 2005-06-02 | Merck Patent Gmbh | Fluorbenzolderivate |
DE4137401C2 (de) * | 1991-11-14 | 1999-05-27 | Merck Patent Gmbh | Benzolderivate und flüssigkristallines Medium |
RU2070191C1 (ru) * | 1992-09-04 | 1996-12-10 | Московское научно-производственное объединение "НИОПИК" | Производные хлордифторметоксифенила и жидкокристаллическая композиция для электрооптических устройств на их основе |
-
1996
- 1996-11-13 JP JP8316958A patent/JPH10139709A/ja active Pending
-
1997
- 1997-11-12 US US09/308,039 patent/US20010019121A1/en not_active Abandoned
- 1997-11-12 AU AU49642/97A patent/AU4964297A/en not_active Abandoned
- 1997-11-12 WO PCT/JP1997/004114 patent/WO1998021172A1/ja not_active Application Discontinuation
- 1997-11-12 EP EP97912427A patent/EP0945422A4/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07118184A (ja) * | 1993-08-30 | 1995-05-09 | Chisso Corp | 1,1,2,3,3,3−ヘキサフルオロプロピル部位を持つ新規液晶性化合物および液晶組成物 |
JPH07316082A (ja) * | 1994-03-29 | 1995-12-05 | Chisso Corp | 液晶性化合物および液晶組成物 |
US5562858A (en) * | 1994-04-14 | 1996-10-08 | Merck Patent Gesellschaft Mit Beshrankter Haftung | Hexafluoropropyl ethers, and liquid-crystalline medium |
Non-Patent Citations (1)
Title |
---|
See also references of EP0945422A4 * |
Also Published As
Publication number | Publication date |
---|---|
JPH10139709A (ja) | 1998-05-26 |
EP0945422A1 (en) | 1999-09-29 |
US20010019121A1 (en) | 2001-09-06 |
EP0945422A4 (en) | 2000-09-27 |
AU4964297A (en) | 1998-06-03 |
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