WO2011160764A1 - Polymerisierbare verbindungen und ihre verwendung in flüssigkristallanzeigen - Google Patents
Polymerisierbare verbindungen und ihre verwendung in flüssigkristallanzeigen Download PDFInfo
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- WO2011160764A1 WO2011160764A1 PCT/EP2011/002725 EP2011002725W WO2011160764A1 WO 2011160764 A1 WO2011160764 A1 WO 2011160764A1 EP 2011002725 W EP2011002725 W EP 2011002725W WO 2011160764 A1 WO2011160764 A1 WO 2011160764A1
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- 0 C*C*(C)ON Chemical compound C*C*(C)ON 0.000 description 14
- YEJCHVFCLNKZPU-UHFFFAOYSA-N CC1COC(C)CC1 Chemical compound CC1COC(C)CC1 YEJCHVFCLNKZPU-UHFFFAOYSA-N 0.000 description 2
- RVDGCQPXYQXNIF-YGFGXBMJSA-N CC(C(O[C@H](CO/C(/C1OC(C(C)=C)=O)=[O]/C(C(C)=C)=O)[C@H]1OC(C(C)=C)=O)=O)=C Chemical compound CC(C(O[C@H](CO/C(/C1OC(C(C)=C)=O)=[O]/C(C(C)=C)=O)[C@H]1OC(C(C)=C)=O)=O)=C RVDGCQPXYQXNIF-YGFGXBMJSA-N 0.000 description 1
- JPJFBLIUWXXTTA-UHFFFAOYSA-N CC(C)(c1c-2c(CC3)cc(Br)c1)c1c-2c3cc(Br)c1 Chemical compound CC(C)(c1c-2c(CC3)cc(Br)c1)c1c-2c3cc(Br)c1 JPJFBLIUWXXTTA-UHFFFAOYSA-N 0.000 description 1
- NPFTUAWJJHRRMX-UHFFFAOYSA-N CC(OC1)OCC1I Chemical compound CC(OC1)OCC1I NPFTUAWJJHRRMX-UHFFFAOYSA-N 0.000 description 1
- QRMPKOFEUHIBNM-UHFFFAOYSA-N CC1CCC(C)CC1 Chemical compound CC1CCC(C)CC1 QRMPKOFEUHIBNM-UHFFFAOYSA-N 0.000 description 1
- HBXFIXSFKULBOG-UHFFFAOYSA-N Cc1cc(F)c(C)c(F)c1 Chemical compound Cc1cc(F)c(C)c(F)c1 HBXFIXSFKULBOG-UHFFFAOYSA-N 0.000 description 1
- QMOLHJKSZMURCV-UHFFFAOYSA-N Oc(cc1COc2c3)cc(CC4)c1-c2c4cc3O Chemical compound Oc(cc1COc2c3)cc(CC4)c1-c2c4cc3O QMOLHJKSZMURCV-UHFFFAOYSA-N 0.000 description 1
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- C07C39/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
- C07C39/12—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings
- C07C39/17—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings containing other rings in addition to the six-membered aromatic rings, e.g. cyclohexylphenol
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- C07C39/23—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic, containing six-membered aromatic rings and other rings, with unsaturation outside the aromatic rings
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- C07C69/52—Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom
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- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
- C09K19/3441—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom
- C09K19/3477—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom the heterocyclic ring being a five-membered aromatic ring containing at least one nitrogen atom
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- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
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- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
- C09K19/3491—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having sulfur as hetero atom
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- C09K19/46—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing esters
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- 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
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- 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
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- C07C2603/40—Ortho- or ortho- and peri-condensed systems containing four condensed rings
- C07C2603/42—Ortho- or ortho- and peri-condensed systems containing four condensed rings containing only six-membered rings
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- C09K2019/0444—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group
- C09K2019/0448—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate
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- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
- C09K19/3402—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom
- C09K19/3405—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom the heterocyclic ring being a five-membered ring
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- C09K19/3402—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom
- C09K2019/3422—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom the heterocyclic ring being a six-membered ring
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- C09K19/542—Macromolecular compounds
- C09K2019/548—Macromolecular compounds stabilizing the alignment; Polymer stabilized alignment
Definitions
- the present invention relates to polymerizable compounds
- the currently used liquid crystal displays are mostly those of the TN type ("twisted nematic"). However, these have the disadvantage of a strong viewing angle dependence of the contrast.
- VA vertically aligned
- the FK cell of a VA display contains a layer of FK medium between two transparent electrodes, the FK medium usually having a negative value of dielectric (DK) anisotropy.
- DK dielectric
- the molecules of the FK layer in the switched-off state are oriented perpendicular to the electrode surfaces (homeotropic) or tilted homeotropically ("tilted”).
- OCB displays (“optically compensated bend") are known, which are based on a birefringence effect and have an FK layer with a so-called "bend” orientation and usually positive (DK) anisotropy. Upon application of an electrical voltage, a reorientation of the FK molecules takes place perpendicular to the electrode surfaces.
- OCB displays typically contain one or more birefringent optical retardation films to avoid unwanted transmittance of the "bend" cell in the dark state.
- OCB displays have another compared to TN displays
- IPS displays in-plane switching
- the two Electrodes are arranged only on one of the two substrates, and preferably have intermeshed, comb-shaped structures.
- FFS displays fringe field switching
- SH Jung et al. Jpn. J. Appl. Phys., Vol. 43, No. 3, 2004, 1028
- IPS displays only one designed as a comb-shaped electrode, and the other electrode is unstructured.
- VA displays with tilt domains have greater viewing angle independence of contrast and grayscale compared to traditional VA displays.
- such displays are easier to manufacture, as an additional treatment of the electrode surface to the uniform
- MVA multidomain vertical alignment
- Electrode side the opposite electrode, however, points
- the slotted electrodes generate when a voltage is applied
- Light transmission can be the distances between the slits and
- protrusions are enlarged, which, however, turn into one
- PSA displays ("Polymer Sustained” or “Polymer Sustained Alignment"), for which occasionally the term “Polymer Stabilized” is used.
- the FK medium is a small amount (for example, 0.3 wt.%, Typically ⁇ 1 wt.%) Of one or more polymerizable
- Compound (s) added which is poiymerinstrument after filling into the FK cell with or without applied electrical voltage between the electrodes in situ, usually by UV photopolymerization.
- Particularly suitable is the addition of polymerizable mesogenic or liquid-crystalline compounds, also as reactive ones
- PS (A) principle is applied in various classic FK ads.
- PSA-VA, PSA-OCB, PSA-IPS, PSA-FFS and PSA-TN displays are known.
- polymerizable compound (s) is carried out in PSA-VA and PSA-OCB displays preferably at applied electrical voltage, in PSA IPS displays with or without applied electrical voltage. How to get in
- Test cells can show, the PS (A) method leads to a pretilt in the cell.
- PSA-OCB displays for example, one can achieve that the Bend structure is stabilized, so that one can do without or reduce offset voltage.
- the pretilt has a positive effect on the switching times.
- PSA VA ads can be a
- Posi-VA displays have proven to be a particularly favorable embodiment.
- the initial orientation of the liquid crystals in the stress-free initial state is here, as in classical VA displays, homeotropic, ie essentially
- Posi-VA displays use dielectrically positive FK media.
- PSA-VA displays are described, for example, in JP 10-036847 A, EP 1 170 626 A2, US Pat. Nos. 6,861,107, 7,169,449, US 2004/0191428 A1, US 2006/0066793 A1 and US 2006/0103804 A1.
- PSA OCB displays are described, for example, in JP 10-036847 A, EP 1 170 626 A2, US Pat. Nos. 6,861,107, 7,169,449, US 2004/0191428 A1, US 2006/0066793 A1 and US 2006/0103804 A1.
- PSA-I PS displays are described, for example, in US 6,177,972 and Appl. Phys. Lett. 1999, 75 (21), 3264.
- PSA TN displays are described, for example, in Optics Express 2004, 12 (7), 1221.
- PSA displays like the conventional FK displays described above, can be operated as active matrix or passive matrix displays.
- active matrix displays the control of individual pixels is usually done by integrated, non-linear active elements such as
- transistors e.g., thin film transistors, or TFTs
- passive matrix displays both of which are known in the art.
- PSA process can bring decisive benefits.
- PSA-VA, PSA-IPS, PSA-FFS and PSA-Posi-VA displays in particular, shortening of the switching times, which correlate with a pretilt measurable in test cells, can be achieved without significant sacrifices of other parameters.
- the selected combination FK-Hostmischung / RM should have the lowest possible rotational viscosity and the best possible electrical properties, in particular they should have the highest possible VHR.
- a high VHR after irradiation with UV light is required above all as the UV exposure is a necessary part of the UV light
- Production process of the display is, but also occurs as a normal load in the operation of the finished display.
- unreacted RMs may adversely affect the properties of the display by e.g. polymerize uncontrolled after completion of the display during operation.
- PSA displays known in the art often show the undesirable effect of so-called “image sticking” or “image burn”, i. that in the FK ad by passing
- this image sticking can occur when FK host mixes with a low VHR are used.
- the UV component of the daylight or the backlight can cause unwanted decay reactions of the FK molecules and thereby the
- PSA displays often show an additional "image sticking" effect caused by the presence of unpolymerized RMs.
- uncontrolled polymerization of the residual RMs is triggered by UV light from the environment or by the backlight.
- the tilt angle is thereby changed after several activation cycles.
- a change in transmission may occur in the switched regions while remaining unchanged in the unswitched regions. It is therefore desirable that the polymerization of the RMs in the preparation of the PSA display runs as completely as possible and the
- VHR voltage holding ratio
- the object of the invention is to provide new suitable materials, in particular RMs and LC media containing them, for use in PSA displays which do not or to a lesser extent have the abovementioned disadvantages, polymerize as rapidly and completely as possible, as rapidly as possible Allow setting of a low pretilt angle, reduce or avoid the occurrence of "image sticking" in the display, and preferably at the same time allow very high resistivities, low threshold voltages, and low switching times.
- the FK media should have favorable FK phase characteristics as well as high VHR and LTS values.
- Another object of the invention is the provision of new RMs, in particular for optical, electro-optical and electronic
- FK media according to the invention and PSA displays leads to a particularly rapid achievement of the desired pretilt and to significantly shortened times in the production of the display. This could be in
- Compound with a FK medium can be detected by means of exposure time-dependent pretilt measurements in VA-Tilt measuring cells.
- pretilt could be achieved without the addition of photoinitiator.
- JP 2000-281629 A describes rod-shaped polymerizable compounds of the formula below and cholesteric polymer films prepared therefrom for use as reflective polarizers.
- WO 2008/121585 A1 describes 1-vinylpyrene of the formula below as monomer for use in compensation films.
- polymerizable compounds according to the invention when used in PSA displays, exhibit a significantly faster tilt angle generation and a faster and more complete polymerization than polymerizable compounds known from the prior art. This could be confirmed by direct comparison experiments. This result was neither described nor suggested by the prior art.
- the invention thus relates to the use of compounds of the formula I (hereinafter also referred to as "polymerizable compounds of the invention")
- Y is the same or different H or F at each occurrence
- R a , R are each, independently of one another, P-Sp-, H, F, Cl, Br, I, -CN,
- P-Sp means or contains
- R c , R d , R e are each, independently of one another, H or straight-chain or branched alkyl having 1 to 12 C atoms, each occurrence is the same or different
- Spacer group or a single bond each independently an aromatic
- P-Sp-, H halogen, straight-chain, branched or cyclic alkyl having 1 to 25, preferably 1 to 12 C-atoms, wherein also one or more non-adjacent CH 2 groups by -O-, -S-, -CO -, -CO-O-, -O-CO-, -O-CO-O- can be replaced so that O and / or S atoms are not directly linked to each other, and wherein also one or more H atoms may be replaced by F, Cl or P-Sp-,
- Each independently of one another represents -O-, -S-, -CO-, -CO-O-, -OCO- O-CO-O-, -OCH 2 -, -CH 2 O-, -SCH 2 -, -CH 2 S-, -CF 2 O-, -OCF 2 -, -CF 2 S-, -SCF 2 - , - (CH 2 ) n -, -CF 2 CH 2 -, -CH 2 CF 2 -, - (CF 2 ) n -,
- R °, R 00 are each independently and at each occurrence identically or differently H or alkyl having 1 to 12 C atoms,
- R y , R z are each independently H, F, CH 3 or CF 3 , n on each occurrence, identically or differently, 1, 2, 3 or 4, p, q are each independently 0, 1 or 2, r on each occurrence or different 0, 1 or 2, in liquid crystal (FK) media and FK displays of the PS or PSA (polymer sustained alignment) type.
- FK liquid crystal
- Another object of the invention is an LC medium containing one or more compounds of formula I and one or more additional compounds which may also be mesogenic, liquid-crystalline and / or polymerizable.
- Another object of the invention is an LC medium containing a polymer obtainable by polymerization of one or more
- Another object of the invention is an FK medium containing
- liquid-crystalline component B hereinafter also referred to as "FK-host mixture” containing one or more
- Another object of the invention is a method for producing a FK medium as described above and below, by one or more low molecular weight liquid crystalline compounds, or a FK-host mixture as described above and below, with one or more compounds of formula I and optionally with other liquid crystalline compounds and / or additives mixed.
- Another object of the invention is the use of
- Another object of the invention is an LC display containing one or more compounds of formula I or a
- FK medium in particular a PS or PSA display, particularly preferably a PSA-VA, PSA-OCB, PSA-IPS, PSA-FFS, PSA-TN or PSA-Posi-VA display.
- a PS or PSA display particularly preferably a PSA-VA, PSA-OCB, PSA-IPS, PSA-FFS, PSA-TN or PSA-Posi-VA display.
- Another object of the invention is an FK display of the PS or PSA type, comprising a FK cell with two substrates and two
- Electrodes wherein at least one substrate is transparent and at least one substrate has one or two electrodes, as well as an interposed between the substrates FK medium containing a polymerized component and a low molecular weight component, wherein the polymerized component is obtainable by polymerization of one or more polymerizable Connections between the substrates of the FK cell in the LC medium, preferably by applying an electrical voltage to the electrodes, wherein
- At least one of the polymerizable compounds is a compound of formula I.
- Another object of the invention is a method for producing a FK display as described above and below, by using an LC medium containing one or more low molecular weight
- liquid crystalline compounds or an FK-host mixture such as and described below and one or more compounds of formula I fills in a FK cell with two substrates and two electrodes as described above and below, and the polymerizable
- the PS and PSA displays according to the invention have two electrodes, preferably in the form of transparent layers, which are applied to one or both of the substrates which form the FK cell.
- either one electrode is applied to one of the two substrates, for example in PSA-VA, PSA-OCB or PSA-TN displays according to the invention, or both electrodes are applied to only one of the two substrates, while the other Substrate has no electrode, such as in PSA Posi-VA invention, PSA-IPS or PSA-FFS displays.
- the invention further provides novel compounds of the formula I, processes for their preparation, as well as novel intermediates used in or derived from these processes.
- the tilt angle designates the
- Tiltwinkels i.e., a large deviation from the 90 ° angle
- a suitable method for measuring the tilt angle can be found in the examples. Unless otherwise indicated, Tilt angle values disclosed above and below refer to this measurement method.
- Substances cause a liquid crystal (FK) phase.
- FK liquid crystal
- Compounds containing mesogenic groups may not necessarily have an FK phase themselves. It is also possible that mesogenic compounds show FK phase behavior only after mixing with other compounds and / or after polymerization.
- Typical mesogenic groups are, for example, rigid rod or rod
- spacer or “spacer” above and below denotes a flexible group which connects the mesogenic group and the polymerizable group (s) in a polymerizable mesogenic compound.
- reactive mesogen or “RM” refers to a compound containing a mesogenic group and one or more functional groups suitable for polymerization (also referred to as polymerizable group or group P).
- low molecular weight compound and “unpolymerizable compound” mean, usually monomeric, compounds which do not have a functional group suitable for polymerization under the usual conditions known to those skilled in the art, especially under the conditions used to polymerize the RMs.
- low molecular weight compound and "unpolymerizable compound” mean, usually monomeric, compounds which do not have a functional group suitable for polymerization under the usual conditions known to those skilled in the art, especially under the conditions used to polymerize the RMs.
- organic group means a carbon or
- hydrocarbon group means a carbon group which additionally has one or more HI atoms and optionally one or more heteroatoms such as
- Halogen means F, Cl, Br or I.
- a carbon or hydrocarbon group may be a saturated or unsaturated group.
- Unsaturated groups are, for example, aryl, alkenyl or alkynyl groups.
- Hydrocarbon radical having more than 3 carbon atoms may be straight-chain, branched and / or cyclic, and may also have spiro-linkages or condensed rings.
- alkyl also include polyvalent groups, for example alkylene, arylene, heteroarylene, etc.
- aryl means an aromatic carbon group or a group derived therefrom.
- heteroaryl means "aryl” as defined above containing one or more heteroatoms.
- Preferred carbon and hydrocarbon groups are optionally substituted alkyl, alkenyl, alkynyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy and alkoxycarbonyloxy having from 1 to 40, preferably 1 to 25, particularly preferably 1 to 18 C-atoms, optionally substituted aryl or aryloxy having 6 to 40, preferably 6 to 25 C atoms, or optionally substituted alkylaryl, arylalkyl, alkylaryloxy, arylalkyloxy, arylcarbonyl, aryloxycarbonyl, arylcarbonyloxy and aryloxycarbonyloxy having 6 to 40, preferably 6 to 25 carbon atoms.
- carbon and hydrocarbon groups are the CC 40 alkyl, C 2 -C 40 alkenyl, C 2 -C 0 alkynyl, C 3 -C 40 allyl, C 4 -C 40 alkyldienyl, C 4 -C 0 polyenyl, C 6 -C 0 aryl, C 6 -C 40 alkylaryl, C 6 -C 40 arylalkyl, C 6 -C 40 alkylaryloxy, C 6 -C 0 arylalkyloxy, C 2 -C 40 heteroaryl, C -C 40 cycloalkyl, C - C 4 o cycloalkenyl etc. are particularly preferred C1-C22 alkyl, C2-C22
- carbon and hydrocarbon groups are straight-chain, branched or cyclic alkyl radicals having 1 to 40,
- R x is preferably H, halogen, a straight-chain, branched or cyclic alkyl chain having 1 to 25 C atoms, in which one or more nonadjacent C atoms are represented by -O-, -S-, -CO-, -CO- O-, -O-CO-, -O-CO- O- may be replaced, wherein one or more H atoms may be replaced by fluorine, an optionally substituted aryl or
- Preferred alkoxy groups are, for example, methoxy, ethoxy, 2-methoxyethoxy, n-propoxy, i-propoxy, n-butoxy, i-butoxy, s-butoxy, t-butoxy, 2-methylbutoxy, n-pentoxy, n-hexoxy, n- Heptoxy, n-octoxy, n- Nonoxy, n-decoxy, n-undecoxy, n-dodecoxy, etc.
- alkyl groups are methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, s-butyl, t-butyl, 2-methylbutyl, n-pentyl, s-pentyl, cyclopentyl, n-hexyl, cyclohexyl, 2- Ethylhexyl, n-heptyl,
- Preferred alkenyl groups are, for example, ethenyl, propenyl, butenyl, pentenyl, cyclopentenyl, hexenyl, cyclohexenyl, heptenyl, cycloheptenyl, octenyl, cyclooctenyl, etc.
- Preferred alkynyl groups are, for example, ethynyl, propynyl, butynyl, pentynyl, hexynyl, octynyl, etc.
- Preferred alkoxy groups are, for example, methoxy, ethoxy, 2-methoxyethoxy, n-propoxy, i-propoxy, n-butoxy, i-butoxy, s-butoxy, t-butoxy, 2-methylbutoxy, n-pentoxy, n-hexoxy, n- Heptoxy, n-octoxy, n-nonoxy, n-decoxy, n-undecoxy, n-dodecoxy, etc.
- Preferred amino groups are, for example, dimethylamino,
- Aryl and heteroaryl groups can be mononuclear or polynuclear, i. they may have a ring (such as phenyl) or two or more rings, which may also be fused (such as naphthyl) or covalently linked (such as biphenyl), or a combination of fused and linked rings.
- Heteroaryl groups contain one or more heteroatoms, preferably selected from O, N, S and Se.
- mono-, di- or trinuclear heteroaryl groups having 2 to 25 carbon atoms which optionally contain fused rings and are optionally substituted.
- 5-, 6- or 7-membered Aryl and heteroaryl groups wherein also one or more CH groups can be replaced by N, S or O so that O atoms and / or S atoms are not directly linked.
- Preferred aryl groups are, for example, phenyl, biphenyl, terphenyl, [1, r: 3 ', 1 "] terphenyl-2'-yl, naphthyl, anthracene, binaphthyl, phenanthrene, pyrene, dihydropyrene, chrysene, perylene, tetracene, pentacene, benzpyrene, Fluorene, indene, indenofluorene, spirobifluorene, etc.
- Preferred heteroaryl groups are, for example, 5-membered rings such as pyrrole, pyrazole, imidazole, 1, 2,3-triazole, 1, 2,4-triazole, tetrazole, furan, thiophene, selenophene, oxazole , Isoxazole, 1, 2-thiazole, 1, 3-thiazole, 1, 2,3-oxadiazole, 1, 2,4-oxadiazole, 1, 2,5-oxadiazole, 1, 3,4-oxadiazole, 1, 2 , 3-thiadiazole, 1, 2,4-thiadiazole, 1, 2,5-thiadiazole, 1, 3,4-thiadiazole, 6-membered rings such as pyridine, pyridazine, pyrimidine, pyrazine, 1, 3,5-triazine, 1, 2,4-triazine, 1, 2,3-triazine, 1, 2,4,5-tetrazine, 1, 2,3,4-tetrazine, 1, 2,
- heteroaryl groups can also be reacted with alkyl, alkoxy, thioalkyl, fluorine, fluoroalkyl or further aryl or
- Heteroaryl be substituted.
- the (non-aromatic) alicyclic and heterocyclic groups include both saturated rings, i. such exclusively
- Single bonds contain as well as partially unsaturated rings, ie those which may also contain multiple bonds.
- Heterocyclic rings contain one or more heteroatoms, preferably selected from Si, O, N, S and Se.
- the (non-aromatic) alicyclic and heterocyclic groups may be mononuclear, ie contain only one ring (such as
- Cyclohexane or polynuclear, i. contain several rings (such as decahydronaphthalene or bicyclooctane). Particularly preferred are saturated groups. Also preferred are mono-, di- or trinuclear groups having 3 to 25 carbon atoms, which optionally contain fused rings and are optionally substituted. Also preferred are 5-, 6-, 7- or 8-membered carbocyclic groups in which also one or more C atoms may be replaced by Si and / or one or more CH atoms.
- Groups may be replaced by N and / or one or more non-adjacent CH 2 groups may be replaced by -O- and / or -S-.
- Preferred alicyclic and heterocyclic groups are, for example, 5-membered groups such as cyclopentane, tetrahydrofuran,
- Preferred substituents are, for example, solubility-promoting groups such as alkyl or alkoxy, electron-withdrawing groups such as fluorine, nitro or nitrile, or substituents for increasing the glass transition temperature (Tg) in the polymer, in particular bulky groups such as e.g. t-butyl or optionally substituted aryl groups.
- alkyl branched alkyl, alkenyl, alkynyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy having 1 to 25 carbon atoms, wherein a or several H atoms may optionally be replaced by F or Cl.
- Substituted silyl or aryl is preferably substituted by halogen, - CN, R °, -OR °, -CO-R 0 , -CO-OR 0 , -O-CO-R 0 or -O-CO-OR 0 , wherein R ° has the meaning given above.
- substituents L are, for example, F, Cl, CN, NO 2 , CH 3 , C 2 H 5 , OCH 3, OC 2 H 5 , COCH 3 l COC 2 H 5 , COOCH 3, COOC 2 H 5 , CF 3> OCF 3 , OCHF 2l OC 2 F 5 , furthermore phenyl.
- the polymerizable group P is a group suitable for a
- Polymerization reaction such as radical or ionic chain polymerization, polyaddition or polycondensation, or for a polymer-analogous reaction, for example, the addition or
- Condensation to a polymer backbone is suitable.
- W 1 is H, F, Cl, CN, CF 3 , phenyl or alkyl of 1 to 5 carbon atoms , in particular H, F, Cl or CH3, W 2 and W 3 each independently of one another are H or alkyl having 1 to 5 C atoms, in particular H, methyl, ethyl or n-propyl, W 4 , W 5 and W 6 each independently of one another are Cl, oxaalkyl or oxacarbonylalkyl having 1 to 5 C atoms, W 7 and W 8 are each independently H, Cl or alkyl having 1 to 5 C atoms, Phe is 1, 4-phenylene, which is optionally with ki, k 2 and k ⁇ are each independently 0 or 1, k 3 , substituted by one or more radicals L other than P-Sp, as defined above
- k4 is an integer from 1 to 10.
- Particularly preferred groups P are selected from the group consisting of:
- Oxacarbonylalkyl having 1 to 5 carbon atoms, W 7 and W 8 are each independently H, Cl or alkyl having 1 to 5 carbon atoms, Phe 1, 4-phenylene, ki, k 2 and k 3 are each independently 0 or 1, k 3 is preferably 1, and an integer of 1 to 10 means.
- groups P a, b are selected from the group consisting of vinyloxy, acrylate, methacrylate, fluoroacrylate, chloroacrylate, oxetane, 3-ethyloxetane and epoxy groups, and more preferably an acrylate or methacrylate group ,
- Preferred spacer groups Sp are selected from the formula Sp "-X", so that the radical "P-Sp-” corresponds to the formula "P-Sp" -X "-", where
- Sp denotes alkylene having 1 to 20, preferably 1 to 12, carbon atoms
- R 00 and R 000 are each independently H or alkyl of 1 to 12 carbon atoms
- Y 2 and Y 3 are each independently H, F, Cl or CN.
- ⁇ ' is preferably -O-, -S-CO-, -COO-, -OCO-, -O-COO-, -CO-NR 0 -, -NR ° -CO-, -NR ° -CO-NR ° - or a single bond.
- Typical spacer groups Sp ' are, for example - (CH 2) p i-, - (CH 2 CH 2 O) q i - CH 2 CH 2 -, -CH 2 CH 2 -S-CH 2 CH 2 -, -CH 2 CH 2 -NH-CH 2 CH 2 - or - (SiR 00 R 000 -O) pi-, wherein p1 is an integer from 1 to 12, q1 is an integer from 1 to 3, and R 00 and R 000 are the have the meanings given above.
- Particularly preferred groups -Sp "-X" - are - (CH 2 ) p i -, - (CH 2 ) p iO-,
- Ethylenoxyethylene methyleneoxybutylene, ethylenethioethylene, ethylene-N-methyl-iminoethylene, 1-methylalkylene, ethenylene, propenylene and
- P in formula I is a radical having two or more polymerisable groups (multifunctional polymerizable radicals). Suitable radicals of this type, as well as polymerizable compounds containing them and their
- multifunctional polymerizable radicals selected from the following:
- alkyl is a single bond or straight or branched chain
- aa and bb are each independently 0, 1, 2, 3, 4, 5 or 6, X has one of the meanings given for X ', and
- Particularly preferred compounds of the formula I are those of the formula IA wherein R a , R b , W 1 , W 2 , A 1 , A 2 , Z 1 , Z 2 , L, p, q and r have the meanings given in formula I or one of the above and below.
- a 1 and A 2 are each independently 1, 4-phenylene, naphthalene-1, 4-diyl or naphthalene-2,6-diyl, wherein in these groups one or more CH groups may be replaced by N, cyclohexane-1 , 4-diyl, in which also one or more non-adjacent CH 2 groups may be replaced by O and / or S, 1, 4-cyclohexenylene, bicyclo [1.1.1] pentane-1, 3-diyl, bicyclo [2.2 .2] octane, 4-diyl, spiro [3.3] heptane-2,6-diyl, piperidine-1,4-diyl, decahydronaphthalene-2,6-diyl, 1,2,3,4-tetrahydronaphthalene-2, 6-diyl, indan-2,5-diyl, octahydro-4,7-methano-indan-2,
- P-Sp-, H halogen, straight-chain, branched or cyclic alkyl having 1 to 25, preferably 1 to 12 C-atoms, wherein also one or more non-adjacent CH 2 groups by -O-, -S-, -CO -, -CO-O-, -O-CO-, -O-CO-O- can be replaced so that O and / or S atoms are not directly linked to each other, and wherein also one or more H atoms may be replaced by F, Cl or P-Sp- mean.
- R c and R d are each, independently of one another, H or alkyl having 1 to 6 C atoms, preferably H, methyl or ethyl,
- one of W 1 and W 2 is -CH 2 CH 2 - and the other is -CH 2 O- or -OCH 2 -,
- one of the radicals W 1 and W 2 is -CH 2 CH 2 - and the other is -C (CH 3 ) 2 -,
- W 1 is -CH 2 CH 2 - and W 2 is -CH 2 O-,
- W 1 and W 2 are -CH 2 CH 2 -,
- R a and R b are P-Sp- and the other is different from P-Sp-,
- R a and R b denote identical or different radicals P-Sp-,
- R a and R b are P-Sp-, wherein in one of the radicals R a and R b Sp is a single bond, and in the other of the radicals R a and R b Sp is different from a single bond, and
- R a and R b are the same or different radicals P-Sp-, in which both radicals Sp are a single bond,
- R a and R b are different from H
- R a and R b are P-Sp- and the other is different from H,
- the radical R a or R b other than P-Sp is alkyl having 1 to 12, preferably 5 to 12 C atoms, alkoxy having 1 to 12 C atoms or alkenyl having 2 to 11 C atoms, in all of which Radicals also one or more H atoms can be replaced by F,
- Sp and / or Sp are an alkylene radical having 1 to 5, preferably 1 to 3, C atoms,
- a 1 and A 2 are each independently and at each instance identically or differently a radical which is selected from the group consisting of phenylene-1, 4-diyl, naphthalene-2,6-diyl, 1, 2,3,4 Tetrahydronaphthalene-2,6-diyl, decahydronaphthalene-2,6-diyl, trans -cyclohexylene-1,4-diyl, dibenzofuran-3,7-diyl, where in such abovementioned radicals which are unsaturated or contain aromatic rings, in these rings also one or two CH groups may be replaced by N, and wherein in all the above-mentioned radicals individual rings may also be mono- or polysubstituted by L as described above and below,
- a and A 2 phenylene-1, 4-diyl which may also be mono- or polysubstituted by L as described above and below,
- L does not mean or contain a polymerizable group
- L is an unpolymerizable group, preferably
- -O-, -S-, -CO-, -CO-O-, -O-CO-, -O-CO-O- may be replaced so that O and / or S atoms are not directly linked to one another , and in which also one or more H atoms can be replaced by F, Cl, Br, I or CN,
- radicals (L) r r 1 means
- L is straight-chain or branched alkyl or alkoxy having 1 to 12 C atoms, or straight-chain or branched alkenyl, alkynyl, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or
- a 1 does not denote 1, 4-phenylene, and particularly preferably no aromatic radical
- a 2 does not denote 1, 4-phenylene, and particularly preferably no aromatic radical
- R a - (A 1 -Z 1 ) p - and - (Z 2 -A 2 ) q -R b are not halogen
- Particularly preferred compounds of the formula I and IA are selected from the group consisting of the following sub-formulas
- P a and P b are each independently one of the meanings given for P, R 'and R “are each independently H or alkyl having 1 to 12 C atoms, and s1 is 0 or 1.
- R' and R " is methyl or ethyl.
- P, P a and P b in the compounds of the formula I and IA and the sub-formulas 11-128 are preferably acrylate or methacrylate, furthermore fluoroacrylate.
- Sp in the compounds of the formulas I and IA and the sub-formulas 11-128 preferably denotes - (CH 2 ) p i-, - (CH 2 ) p iO-, - (CH 2 ) p IO-CO- or - (CH 2 ) pi-0-CO-O-, or their mirror images, wherein p1 is an integer from 1 to 12, preferably from 1 to 6, more preferably 1, 2, 3 or 4, and wherein the linkage with the adjacent benzene ring the O atom takes place.
- Another object of the invention are novel intermediates for the preparation of compounds of formula I selected from formula II
- W 1 , W 2 , Sp, L, A 1 , A 2 , Z 1 , Z 2 , p, q and r have the meanings given in formula I or above and below, and G and G 'each independently Mean H atom or a protective group.
- Suitable protecting groups G are known to the person skilled in the art.
- Preferred protective groups are alkyl, acyl and alkylsilyl or arylsilyl groups, 2-tetrahydropyranyl or methoxymethyl.
- dehydrating agent for example after Steglich with dicyclohexylcarbodiimide (DCC).
- DCC dicyclohexylcarbodiimide
- Another object of the invention is thus a process for preparing a compound of formula I by esterifying or etherifying a compound of formula II with appropriate acids, acid derivatives, or halogenated compounds containing a group P in the presence of a dehydrating reagent.
- Suitable reaction conditions for aromatization are e.g. treatment with dichlorodicyanobenzoquinone (DDQ) in an inert solvent (VV: Filichev et al., Chemistry - A European Journal 2008, 14 (32), 9968-9980, or halogenation with elimination of hydrogen halide (P. Soustek et al., Dyes and
- Flavidin (19) is a natural product and is isolated from orchids (see, e.g., G. Jayaprakasha et al., Bioorganic & Medicinal Chemistry 2004, 12, 5141-
- the polymerizable compounds in the LC medium are polymerized or crosslinked between the substrates of the LC display by applying a voltage through in situ polymerization (if a compound contains two or more polymerizable groups).
- the polymerization can be carried out in one step. It is also possible first to carry out the polymerization in a first step by applying a voltage in order to generate a pretilt angle, and then in a second Polymerization step without applied voltage to polymerize or crosslink the unreacted in the first step compounds ("end curing").
- Suitable and preferred polymerization methods are, for example, thermal or photopolymerization, preferably
- Photopolymerization in particular UV photopolymerization.
- one or more initiators can also be added. Suitable conditions for the polymerization, as well as suitable types and amounts of initiators, are known in the art and in the
- the commercially available photoinitiators Irgacure651®, Irgacure184®, Irgacure907®, Irgacure369®, or Darocure1173® are suitable for the free-radical polymerization. If an initiator is used, its proportion is preferably 0.001 to 5 wt .-%, particularly preferably 0.001 to 1 wt .-%.
- the polymerizable compounds of the invention are also suitable for polymerization without initiator, which brings considerable advantages, such as lower material costs and in particular a lower contamination of the FK medium by possible residual amounts of the initiator or its degradation products.
- the polymerization can thus be carried out without addition of an initiator.
- the LC medium does not contain a polymerization initiator.
- the polymerizable component A) or the LC medium may also contain one or more stabilizers to prevent unwanted spontaneous polymerization of the RMs, for example during storage or transport. Suitable types and amounts of stabilizers are known to those skilled in the art and described in the literature. Particularly suitable are, for example, the commercially available stabilizers of the series Irganox® (Ciba AG), such as
- Irganox® 1076 If stabilizers are used, their proportion, based on the total amount of RMs
- the LC media according to the invention for use in PSA ads preferably comprise ⁇ 5% by weight, more preferably ⁇ 1% by weight, very preferably ⁇ 0.5% by weight of polymerisable
- LC media containing one, two or three polymerizable compounds according to the invention.
- LC media wherein the polymerizable
- Component (component A) contains only polymerizable compounds according to the invention.
- component B) is an FK compound or an LC mixture which is a nematic
- Liquid crystal phase has.
- achiral polymerizable compounds according to the invention, and FK media wherein the compounds of component A) and / or B) are selected exclusively from the group consisting of achiral compounds.
- PSA displays and LC media, wherein the
- the proportion of the polymerizable component or component A) in the LC media according to the invention is preferably ⁇ 5%, particularly preferably ⁇ 1%, very particularly preferably ⁇ 0.5%.
- the proportion of the liquid-crystalline component or component B) in the LC media according to the invention is preferably> 95%, particularly preferably> 99%.
- the polymerizable compounds according to the invention can be polymerized individually, but it is also possible to polymerize mixtures which contain two or more polymerizable compounds according to the invention, or mixtures comprising one or more polymerizable compounds according to the invention and one or more further polymerizable compounds (comonomers) which
- the polymerizable mixtures mentioned above and below are a further subject of the invention.
- the polymerizable compounds and comonomers are mesogenic or non-mesogenic, preferably mesogenic or liquid crystalline.
- Suitable and preferred mesogenic comonomers are for example selected from the following formulas:
- P 1 and P 2 are each independently a polymerizable
- Group preferably having one of the meanings given above and below for P, more preferably an acrylate, methacrylate, fluoroacrylate, oxetane, vinyloxy or epoxy group,
- Each of Sp 1 and Sp 2 independently represents a single bond or a spacer group, preferably with one of the meanings given above and below for Sp, and more preferably - (CH 2 ) p i-, - (CH 2 ) p i-0-, - (CH 2 ) p i -CO-O- or - (CH 2 ) p iO-CO-O-, where p1 is an integer from 1 to 12, and wherein in the latter groups the linkage to the adjacent ring via the O atom takes place,
- R °, R 00 are each independently and at each instance identically or differently H or alkyl having 1 to 12 C atoms, R y and R z are each independently H, F, CH 3 or CF 3 ,
- Z is -O-, -CO-, -C (R y R z ) -, or -CF 2 CF 2 -,
- Z 2 and Z 3 are each independently of one another -CO-O-, -O-CO-, -CH 2 O-,
- L is the same or different at each occurrence F, Cl, CN, or straight-chain or branched, optionally mono- or polyfluorinated, alkyl, alkoxy, alkenyl, alkynyl, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy having 1 to 12 C atoms, preferably F,
- L 'and L are each independently H, F or Cl,
- the LC media for use in the LC displays according to the invention contain, in addition to the polymerizable described above
- an FK mixture (“host mixture”) containing one or more, preferably two or more low molecular weight (ie monomeric or unpolymerized) compounds.
- the latter are stable or unreactive to a polymerization reaction under the conditions used for the polymerization of the polymerizable compounds.
- the host mixture can be any FK mixture suitable for use in conventional VA and OCB displays.
- Suitable LC mixtures are known to the person skilled in the art and described in the literature, for example mixtures in VA displays in EP 1 378 557 A1, and mixtures for OCB displays in EP 1 306 418 A1 and DE 102 24 046 A1.
- the FK medium contains an FK host mixture based on
- Such LC media are particularly suitable for use in PSA-VA displays. Particularly preferred embodiments of such LC media are mentioned in the following paragraphs a-x: a) LC medium which contains one or more compounds selected from the group consisting of the formulas CY and PY:
- R 1 and R 2 each independently of one another alkyl with 1 to 12 C
- L 1 "4 are each independently of one another F, Cl, OCF 3 , CF 3 , CH 3 ,
- both radicals L 1 and L 2 are F, or one of the radicals L 1 and L 2 F and the other Cl, or both radicals L 3 and L 4 F, or one of the radicals L 3 and L 4 F and the other Cl.
- the compounds of formula CY are preferably selected from the group consisting of the following sub-formulas
- alkyl and alkyl * each independently represent a straight-chain alkyl radical having 1-6 C atoms, and alkenyl a straight-chain alkenyl radical having 2-6 C atoms, and (O) a
- the compounds of the formula PY are preferably selected from the group consisting of the following sub-formulas:
- alkyl and alkyl * each independently represent a straight-chain alkyl radical having 1-6 C atoms and alkenyl a straight-chain alkenyl radical having 2-6 C atoms, and (O) a
- FK medium which additionally contains compounds of the formula one or more compounds of the following formula: wherein the individual radicals have the following meaning
- the compounds of the formula ZK are preferably selected from the group consisting of the following sub-formulas:
- alkyl and alkyl * each independently represent a straight-chain alkyl radical having 1-6 C atoms
- alkenyl is a straight-chain alkenyl radical having 2-6 C atoms.
- LC medium which additionally contains one or more compounds of the following formula: wherein the individual radicals have the same meaning or different at each occurrence as
- R 5 and R 6 are each independently one of the meanings given above for R 1 ,
- the compounds of the formula DK are preferably selected from the group consisting of the following sub-formulas:
- L 1 and L 2 are each independently of one another F, Cl, OCF 3 , CF 3 , CH 3 ,
- both radicals L 1 and L 2 are F or one of the radicals L 1 and L 2 F and the other Cl.
- the compounds of the formula LY are preferably selected from the group consisting of the following sub-formulas wherein R 1 has the abovementioned meaning, alkyl is a straight-chain alkyl radical having 1-6 C atoms, (O) an oxygen atom or a single bond and v is an integer from 1 to 6.
- FK medium which additionally contains one or more compounds selected from the group consisting of the following formulas:
- alkyl d -6- alkyl, L x H or F and XF, Cl, OCF 3 , OCHF 2 or OCH CF 2 .
- X is F.
- FK medium which additionally contains one or more compounds selected from the group consisting of the following formulas:
- R 5 has one of the meanings given above for R 1 , alkyl Ci -6- alkyl, d is 0 or 1, and z and m are each independently an integer from 1 to 6.
- R5 is in these compounds is particularly preferably Ci -6 alkyl or -alkoxy or C 2-6 - alkenyl containing d is preferably 1.
- FK medium one or more compounds of the above formulas in amounts of> 5 wt.%.
- Biphenyl compounds selected from the group consisting of the following formulas:
- alkyl and alkyl * each independently of one another denote a straight-chain alkyl radical having 1-6 C atoms
- alkenyl and alkenyl * each independently of one another denote a straight-chain alkenyl radical having 2-6 C atoms.
- Alkenyl and alkenyl * mean
- the proportion of the biphenyls of the formulas B1 to B3 in the LC mixture is preferably at least 3% by weight, in particular> 5% by weight.
- the compounds of the formula B2 are particularly preferred.
- the compounds of the formula B1 to B3 are preferably selected from the group consisting of the following sub-formulas
- alkyl * is an alkyl radical having 1-6 C atoms.
- the medium according to the invention or several compounds of the formulas B1a and / or B2c contains.
- Terphenylharmen of the following formula contains: wherein R 5 and R 6 are each independently one of the above for
- L 5 is F or Cl, preferably F, and LF, Cl, OCF 3 ,
- CF 3 CH 3 , CH 2 F or CHF 2 , preferably F, mean.
- the compounds of formula T are preferably selected from the group consisting of the following sub-formulas
- R is a straight-chain alkyl or alkoxy radical having 1-7 C atoms
- R * is a straight-chain alkenyl radical having 2-7 C atoms, (O) an oxygen atom or a single bond
- m is an integer from 1 to 6.
- R is methyl, ethyl, propyl, butyl, pentyl, hexyl, methoxy, ethoxy, propoxy, butoxy or pentoxy.
- the LC medium according to the invention contains the terphenyls of the formulas T and their preferred sub-formulas preferably in an amount of 0.5-30% by weight, in particular of 1-20% by weight.
- R preferably denotes alkyl, furthermore alkoxy in each case with 1-5 C atoms.
- the terphenyls are in inventive
- Preferred mixtures contain 2-20% by weight of one or more terphenyl compounds of the formula T, preferably selected from the group of the compounds T1 to T22.
- FK medium which additionally contains one or more compounds selected from the group consisting of the following formulas:
- R 1 and R 2 have the meanings given above, and preferably in each case independently of one another represent straight-chain alkyl having 1 to 6 C atoms or straight-chain alkenyl having 2 to 6 C atoms.
- Preferred media contain one or more compounds selected from the formulas 01, 03 and 04.
- R 9 is H, CH 3 , C 2 H 5 or (F) is an optional fluorine substituent and q is 1, 2 or 3, and R 7 has one of the meanings given for R 1 , preferably in amounts of> 3% by weight, in particular> 5% by weight, and very particularly preferably from 5-30% by weight.
- Particularly preferred compounds of the formula IF are selected from the group consisting of the following sub-formulas: where R 7 is preferably straight-chain alkyl and R 9 is CH 3 , C 2 H 5 or nC 3 H 7 . Particularly preferred are the compounds of formula Fl 1, FI2 and FI3.
- FK medium which additionally contains one or more compounds selected from the group consisting of the following formulas:
- R 8 has the meaning given for R 1 and alkyl straight-chain alkyl radical having 1-6 C atoms.
- FK medium which additionally contains one or more compounds which have a tetrahydronaphthyl or naphthyl unit, such as, for example, the compounds selected from the group consisting of the following formulas:
- R 10 and R 11 each independently have one of the meanings given for R 1 , preferably straight-chain alkyl or alkoxy having 1 to 6 C atoms or straight-chain alkenyl having 2 to 6 C atoms
- FK medium additionally containing one or more difluorodibenzochrome and / or chromans of the following formulas: wherein R 11 and R 12 each independently have the abovementioned meaning, ring M is trans-1, 4-cyclohexylene or 1, 4-phenylene, Z m -C 2 H 4 -, -CH 2 O-, -OCH 2 -, -CO-O- or -O-CO-, and c is O or 1, preferably in amounts of 3 to 20 wt.%, In particular in amounts of 3 to 15 wt.%.
- Particularly preferred compounds of the formulas BC and CR are selected from the group consisting of the following sub-formulas:
- alkyl and alkyl * each independently represent a straight-chain alkyl radical having 1-6 C atoms, (O) an oxygen atom or a single bond, and alkenyl and alkenyl * each independently represent a straight-chain alkenyl radical having 2-6 C atoms.
- FK medium which additionally contains one or more fluorinated phenanthrenes and / or dibenzofurans of the following formulas:
- R 11 and R 2 each independently have the meanings given above, b is 0 or 1, LF and r is 1, 2 or 3.
- Particularly preferred compounds of the formulas PH and BF are selected from the group consisting of the following sub-formulas:
- LC medium which is 1 to 5, preferably 1, 2 or 3
- vorzusgweise selected from polymerizable compounds according to the invention, in particular of the formula I or their sub-formulas contains.
- Total mixture 0.05 to 5%, preferably 0.1 to 1%.
- LC medium containing 1 to 8, preferably 1 to 5 compounds of the formula CY1, CY2, PY1 and / or PY2.
- the proportion of these compounds in the total mixture is preferably 5 to 60%, particularly preferably 10 to 35%.
- the content of these individual compounds is preferably 2 to 20% in each case.
- FK medium which contains 1 to 8, preferably 1 to 5, compounds of the formula CY9, CY10, PY9 and / or PY10.
- the proportion of these compounds in the total mixture is preferably 5 to 60%, particularly preferably 0 to 35%.
- the content of these individual compounds is preferably 2 to 20% in each case.
- FK medium which contains 1 to 10, preferably 1 to 8, compounds of the formula ZK, in particular compounds of the formula ZK1, ZK2 and / or ZK6. The proportion of these compounds in
- Total mixture is preferably 3 to 25%, particularly preferably 5 to 45%.
- the content of these individual compounds is preferably 2 to 20% in each case.
- FK medium in which the proportion of compounds of the formula CY, PY and ZK in the total mixture is more than 70%, preferably more than 80%, x) PSA-VA display, wherein the pretilt angle is preferably ⁇ 85 °, more preferably ⁇ 80 °.
- the FK medium contains an FK host mixture based on
- Such LC media are particularly suitable for use in PSA-OCB, PSA-TN, PSA-Posi-VA, PSA-IPS and PSA-FFS displays. Particularly preferred embodiments for such LC media are mentioned below:
- LC medium containing one or more compounds selected from the group consisting of the following formulas:
- LC medium which, in addition to the compounds of the formula AA and / or BB, contains one or more compounds of the following formula:
- R 21 , R 31 , R 4 , R 42 are each independently of one another alkyl, alkoxy, oxaalkyl or fluoroalkyl having 1 to 9 C atoms or alkenyl having 2 to 9 C atoms,
- -CF CF-, -CH2O- or a single bond
- X ° is preferably F, Cl, CF 3 , CHF 2 , OCF 3 , OCHF 2 , OCFHCF 3 , OCFHCHF 2 , OCFHCHF 2 , OCF 2 CH 3 , OCF 2 CHF 2 , OCF 2 CHF 2 ,
- the compounds of the formula AA are preferably selected from the group consisting of the following formulas:
- a 21 , R 21 , X °, L 21 and L 22 have the meaning given in formula AA, L 23 and L 24 are each independently H or F, and X ° is preferably F. Particular preference is given to compounds of the formulas AA1 and AA2.
- Particularly preferred compounds of the formula AA1 are selected from the group consisting of the following sub-formulas:
- R ° has one of the meanings given for R 21 in formula AA1, X °, L 21 and L 22 have the meaning given in formula AA1, L 23 , L 24 , L 25 and L 26 are each independently H or F, and X ° is preferably F.
- Very particularly preferred compounds of the formula AA1 are selected from the group consisting of the following sub-formulas
- R ° has the meaning given for R 21 in formula AA1.
- Particularly preferred compounds of the formula AA2 are selected from the group consisting of the following sub-formulas:
- R ° in formula having R 21 as defined AA1, X °, L: and L 22 are as defined in formula AA, L 23, L 24, L 25 and L each independently represents 26 H or F, and X ° preferably F means.
- Very particularly preferred compounds of the formula AA2 are selected from the group consisting of the following sub-formulas:
- R ° has the meaning given for R 21 in formula AA1.
- Particularly preferred compounds of the formula AA3 are selected from the group consisting of the following sub-formulas:
- R ° has the meaning given for R 21 in formula AA1, X °, L and L 22 have the meaning given in formula AA3, and X ° is preferably F.
- Particularly preferred compounds of the formula AA4 are selected from the group consisting of the following sub-formulas:
- R ° has the meaning given for R 21 in formula AA1.
- the compounds of formula BB are preferably selected from the group consisting of the following formulas:
- a 31 , A 32 , R 31 , X °, L 31 and L 32 are those given in formula BB
- Particularly preferred compounds of the formula BB1 are selected from the group consisting of the following sub-formulas:
- BB1 a wherein R 3 has the meaning given for R 31 in formula BB1, X °, L and L 32 have the meaning given in formula BB1, and X ° is preferably F.
- Very particularly preferred compounds of the formula BB1a are selected from the group consisting of the following sub-formulas:
- R 3 has the meaning given for R 31 in formula BB1.
- Very particularly preferred compounds of the formula BB1 b are selected from the group consisting of the following sub-formulas:
- R 3 has the meaning given for R 31 in formula BB1.
- Particularly preferred compounds of formula BB2 are selected from the group consisting of the following sub-formulas: wherein R ° has one of the meanings given for R 21 in formula BB 2, X °, L 31 and L 32 have the meanings given in formula BB2, L 33 , L 34 , L 35 and L 36 each, independently of one another, denote H or F, and X ° is preferably F.
- Very particularly preferred compounds of the formula BB2a are selected from the group consisting of the following sub-formulas
- Very particularly preferred compounds of the formula BB2b are selected from the group consisting of the following sub-formulas:
- Very particularly preferred compounds of the formula BB2c are selected from the group consisting of the following sub-formulas:
- R 3 has the meaning given for R 31 in formula BB2.
- Very particularly preferred compounds of the formulas BB2d and BB2e are selected from the group consisting of the following sub-formulas: wherein R 3 has the meaning given for R 31 in formula BB2.
- Very particularly preferred compounds of the formula BB2f are selected from the group consisting of the following sub-formula
- R 3 has the meaning given for R in formula BB2.
- Very particularly preferred compounds of the formula BB2g are selected from the group consisting of the following sub-formulas
- Very particularly preferred compounds of the formula BB2h are selected from the group consisting of the following sub-formulas:
- R 3 has the meaning given for R 31 in formula BB2.
- Very particularly preferred compounds of the formula BB2i are selected from the group consisting of the following sub-formulas
- R 3 has the meaning given for R 31 in formula BB2.
- Very particularly preferred compounds of the formula BB2k are selected from the group consisting of the following sub-formulas:
- R 3 has the meaning given for R 31 in formula BB2.
- the LC medium may also comprise one or more compounds of the formula BB3 as defined above.
- Particularly preferred compounds of formula BB3 are selected from the group consisting of the following sub-formulas:
- R 3 has the meaning given for R 31 in formula BB3.
- the LC medium according to this second preferred embodiment contains, in addition to the compounds of formula AA and / or BB, one or more dielectrically neutral compounds having a dielectric anisotropy of -1.5 to +3, which are selected from the group consisting of compounds Formula CC as defined above.
- Particularly preferred compounds of the formula CC are selected from the group consisting of the following sub-formulas:
- R and R have the meaning given in formula CC, and preferably each independently of one another alkyl, alkoxy, fluorinated alkyl or fluorinated alkoxy having 1 to 7 carbon atoms, or alkenyl, alkenyloxy, alkoxyalkyl or fluorinated alkenyl having 2 to 7 carbon atoms , and L 4 is H or F.
- the FK medium according to this second preferred embodiment in addition to or as an alternative to the dielectrically neutral compounds of formula CC, contains one or more dielectrically neutral compounds having a dielectric anisotropy of from .5 to +3 selected from the group consisting of Compounds of the formula DD. wherein A, A, Z, Z, R, R and h have the meaning given in formula CC.
- Particularly preferred compounds of the formula DD are selected from the group consisting of the following sub-formulas:
- FK medium according to the invention is preferably from 2% to 60%, more preferably from 3% to 35%, most preferably from 4 to 30% in the total mixture.
- the LC medium according to the invention is preferably from 2% to 70%, in particular from 5% to 65%, particularly preferably from 10% to 60%, and very particularly preferably from 10%, preferably 15%, to 55% in the overall mixture.
- LC media In the LC media according to the invention, compounds bring about low threshold voltages, low rotational viscosities and very good low-temperature stabilities with consistently high clearing points and high HR values, and allows rapid setting of a particularly low pretilt angle in PSA displays.
- the FK media in PSA displays in comparison to the media of the prior art significantly reduced switching times, especially the
- the liquid-crystal mixture has a nematic phase range of at least 80 K, more preferably from
- the molecules in the layer of the FK medium in the switched-off state are oriented perpendicular to the electrode surfaces (homeotropic) or tilted homeotropically ("tilted").
- a reorientation of the FK molecules with the longitudinal molecular axes takes place parallel to the electrode surfaces.
- Inventive LC media of the first preferred embodiment in particular those for use in displays of the PSA-VA type, have a negative dielectric anisotropy ⁇ , preferably from about -0.5 to -10, in particular from about -2.5 to - 7.5 at 20 ° C and 1 kHz.
- the birefringence ⁇ in FK media of the first preferred embodiment according to the invention is preferably below 0.16, more preferably between 0.06 and 0.14, in particular between 0.07 and 0.12.
- the molecules in the FK medium layer are in a "bend" orientation.
- a reorientation of the FK molecules takes place with the longitudinal molecular axes perpendicular to the electrode surfaces.
- FK media according to the invention for use in displays of the PSA-OCB type are preferably those having a positive dielectric anisotropy ⁇ according to the second preferred embodiment, and preferably have a dielectric anisotropy ⁇ of about +4 to +17 at 20 ° C and 1 kHz ,
- the birefringence ⁇ in FK media of the second preferred embodiment according to the invention for use in displays of the OCB type is preferably between 0.14 and 0.22, in particular between 0.16 and 0.22.
- Inventive LC media of the second preferred embodiment in particular those for use in displays of the PSA-TN, PSA-posi-VA, PSA-IPS and PSA-FFS type, have a positive dielectric anisotropy ⁇ , preferably + 2 to +30, more preferably from +2 to +17, most preferably from +3 to +15, at 20 ° C and 1 kHz.
- the birefringence ⁇ in FK media of the second preferred embodiment according to the present invention especially those for use in displays of the PSA-TN, PSA-IPS, and PSA-FFS types preferably between 0.07 and 0.15, in particular between 0.08 and 0.13.
- the LC media according to the invention may also contain further additives or additives known to the person skilled in the art and described in the literature, for example polymerization initiators, inhibitors,
- Stabilizers surface-active substances or chiral dopants.
- the FK.Medien can, for example, one or more chiral
- Dopants containing, vorzusgweise selected from the group consisting of compounds of the following Table B.
- the FK.Medien for example 0 to 15 wt .-%
- pleochroic dyes are added, furthermore nanoparticles,
- Conducting salts preferably ethyldimethyldodecylammonium 4-hexoxybenzoate, tetrabutylammonium tetraphenylborate or complex salts of crown ethers (see, for example, Haller et al., Mol. Cryst. Liq. Cryst. 24, 249-258 (1973)) for improving the conductivity, or substances for
- FK media according to the invention may also contain compounds in which, for example, H, N, O, Cl, F are replaced by the corresponding isotopes.
- the structure of the FK displays according to the invention corresponds to the usual for PSA displays geometry, as described in the cited prior art. Geometries without protrusions are preferred, especially those in which, moreover, the electrode on the color filter side is unstructured and only the electrode on the TFT side has slots. Particularly suitable and preferred
- Electrode structures for PSA-VA displays are described, for example, in US 2006/0066793 A1.
- the following examples illustrate the present invention without limiting it. However, they show the skilled person preferred mixing concepts with preferably used compounds and their respective concentrations and their combinations with each other. In addition, the examples illustrate which properties and combinations of properties are accessible. The following abbreviations are used:
- the LC media according to the invention contain one or more
- Table B lists possible chiral dopants which can be added to the LC media according to the invention.
- the FK media contain 0 to 10 wt.%, In particular
- the LC media preferably contain one or more dopants selected from the group consisting of compounds of Table B. Table C
- Table C lists possible stabilizers which can be added to the LC media according to the invention.
- n here denotes an integer from 1 to 12, preferably 1, 2, 3, 4, 5, 6, 7 or 8, terminal methyl groups are not shown).
- the LC media preferably contain from 0 to 10% by weight, in particular from 1 ppm to 5% by weight, particularly preferably from 1 ppm to 1% by weight, of stabilizers.
- the LC media preferably contain one or more stabilizers selected from the group consisting of compounds of Table C.
- Table D summarizes example compounds which may be used preferably as reactive mesogenic compounds in the LC media of the present invention.
- the mesogenic media contain one or more compounds selected from the group of compounds of Table D.
- V 0 threshold voltage V 0 threshold voltage
- capacitive [V] at 20 ° C V 0 threshold voltage
- n e extraordinary refractive index at 20 ° C and 589 nm
- n is 0 ordinary refractive index at 20 ° C and 589 nm
- temperatures such as the melting point T (C, N), the transition from the smectic (S) to the nematic (N) phase T (S, N) and the clearing point T (N, I), in degrees Celsius (° C).
- Mp means melting point
- bp clearing point.
- K crystalline state
- N nematic phase
- S smectic phase
- I isotropic phase.
- threshold voltage refers to the present invention
- the capacitive threshold also called Freedericksz threshold, unless explicitly stated otherwise.
- the optical threshold can be given for 10% relative contrast (V 10 ). The one used to measure the capacitive threshold voltage
- Display consists of two plane-parallel glass carrier plates at a distance of 20 ⁇ , which have on the inner sides in each case an electrode layer and an overlying, non-oriented orientation layer of polyimide, which has a homeotropic edge orientation of
- the display or test cell used to measure the tilt angle consists of two plane-parallel glass carrier plates at a distance of 4 ⁇ , which have on the insides each an electrode layer and an overlying alignment layer of polyimide, wherein the two polyimide layers are rubbed anti-parallel to each other and a homeotropic edge orientation of the liquid crystal molecules cause.
- the polymerizable compounds are in the display or
- Test cell polymerized by irradiation with UVA light (usually 365nm) of a defined intensity for a predetermined time, at the same time a voltage is applied to the display (usually 10V to 30V AC, 1 kHz).
- a mercury vapor lamp of 50 mW / cm 2 is used, the intensity is measured with a standard UV meter (manufactured by Ushio UNI meter) equipped with a band-pass filter at 365nm.
- the tilt angle is determined by a rotary crystal experiment (Autronic-Melcher's TBA-105). A low value (ie a large deviation from the 90 ° angle) corresponds to a large tilt.
- the VHR value is measured as follows: 0.3% of a polymerizable monomeric compound is added to the FK-host mixture and the resulting mixture is filled into TN-VHR test cells (90 ° rubbed, orientation layer TN-polyimide, layer thickness d 6 pm). The HR value is determined after 5 min at 100 ° C before and after 2 h UV exposure (suntest) at 1 V, 60 Hz, 64 ps pulse (measuring device: Autronic-Melcher's VHRM-105).
- low temperature stability also referred to as “LTS” (low temperature stability)
- LTS low temperature stability
- Periodic acid and 9.00 g (35.5 mmol) of iodine are concentrated in a solution of 2.2 ml of conc. Sulfuric acid and 15 ml of water in 70 ml of glacial acetic acid for 1 h at 70 ° C heated. The solution is then added to ice-water and extracted three times with ethyl acetate. The united org. Phases are treated with dilute sodium hydrogen sulfite solution. and ges. Sodium bicarbonate solution.
- the combined aqueous phases are acidified with dil. Hydrochloric acid and extracted three times with ethyl acetate.
- the united org. Phases are washed with water and dried over sodium sulfate.
- the solvent is i.Vak. the residue was chromatographed on silica gel with toluene / ethyl acetate (7: 3) and the crude product of toluene / heptane (1: 1).
- ⁇ 2.80 ppm (s, 8H, CH 2 ), 4.73 (s, 2H, OH), 6.54 (s, 4H, Ar-H).
- Trimethyl phosphate added. The approach is 4 h at room temp. Stirred, added to 150 ml of ice water and 100 ml of toluene and excess bromine with Natriumhydrogensulfitlsg. destroyed. The aq. Phase is separated and extracted once with toluene. The united org. Phases are washed with water, dried over sodium sulfate and the solvent i. Vak. away. The crude product is filtered through silica gel with toluene / heptane (1: 1) and recrystallized from toluene / heptane (1: 1). 2,6-Dibromo-4,4-dimethyl-8,9-dihydro-4H-cyclopenta [def] phenanthrene is obtained as colorless crystals.
- Example 5 In analogy to Example 1 is obtained from 4,4-dimethyl-8,9-dihydro-4H-cyclopenta [def] phenanthren-2,6-diol, the 2-methyl-acrylic acid-4,4-dimethyl-6- (2 -methyl-acryloyloxy) -8,9-dihydro-4H-cyclopenta [def] phenanthren-2-yl ester as colorless crystals of mp. 77 ° C.
- Example 5 Example 5
- the nematic LC mixture N1 is formulated as follows
- the cells are irradiated in the specified time with UV light of intensity 50 mW / cm 2 , thereby polymerizing the monomeric compound.
- the tilt angle is determined by means of a rotary crystal experiment (Autronic-Melcher's TBA-105). To determine the rate of polymerization, the residual content of unpolymerized RM (in% by weight) in the test cells is detected
- each mixture is polymerized in the test cell under the given conditions. Thereafter, the mixture is rinsed with methyl ethyl ketone from the test cell and measured.
- the tilt angle results are summarized in Table 1.
- the RM concentrations after different exposure times are summarized in Table 2.
- Example 2 Example 3
- Example 4 Example 5 t / s Remaining RM (%)
- Polymerization can be achieved as with the monomers V1-V3 from the prior art. As can be seen from Table 2, a much faster polymerization rate is also achieved with the monomers according to the invention from Example 1-3 than with the monomers V1-V3.
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Abstract
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112585243A (zh) * | 2018-08-22 | 2021-03-30 | 默克专利股份有限公司 | 液晶混合物及液晶显示器 |
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Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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EP2980062A3 (de) * | 2014-07-30 | 2016-04-06 | Merck Patent GmbH | Polymerisierbare verbindungen und ihre verwendung für flüssigkristallanzeigen |
JP6891731B2 (ja) * | 2016-09-01 | 2021-06-18 | Jnc株式会社 | 重合性液晶化合物、重合性液晶組成物および液晶重合体 |
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CN109825308B (zh) * | 2019-03-19 | 2021-02-02 | 石家庄晶奥量新材料有限公司 | 负性液晶化合物和负性液晶组合物及应用 |
JP7302305B2 (ja) * | 2019-06-04 | 2023-07-04 | Dic株式会社 | 液晶組成物及び液晶表示素子 |
Citations (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2209127A1 (de) | 1972-02-26 | 1973-09-06 | Merck Patent Gmbh | Modifizierte nematische phasen |
DE2338281A1 (de) | 1972-08-03 | 1974-02-21 | Ibm | Verfahren zur gesteuerten veraenderung der elektrischen eigenschaften von nematischen fluessigkeiten und dotierungsmittel hierfuer |
DE2240864A1 (de) | 1972-08-19 | 1974-02-28 | Merck Patent Gmbh | Nematische ester und ihre verwendung zur beeinflussung der elektrooptischen eigenschaften nematischer phasen |
DE2321632A1 (de) | 1973-04-28 | 1974-11-21 | Merck Patent Gmbh | Modifizierte nematische gemische mit positiver dielektrischer anisotropie |
DE2450088A1 (de) | 1974-10-22 | 1976-04-29 | Merck Patent Gmbh | Biphenylester |
DE2636684A1 (de) | 1976-08-14 | 1978-02-16 | Merck Patent Gmbh | Cyclohexanderivate |
DE2637430A1 (de) | 1976-08-20 | 1978-02-23 | Merck Patent Gmbh | Fluessigkristallines dielektrikum |
DE2853728A1 (de) | 1978-12-13 | 1980-07-17 | Merck Patent Gmbh | Fluessigkristalline carbonsaeureester, verfahren zu ihrer herstellung, diese enthaltende dielektrika und elektrooptisches anzeigeelement |
DE3321373A1 (de) | 1983-06-14 | 1984-12-20 | Merck Patent Gmbh, 6100 Darmstadt | Bicyclohexyle |
EP0364538A1 (de) | 1988-03-10 | 1990-04-25 | Merck Patent Gmbh | Difluorbenzolderivate. |
JPH1036847A (ja) | 1996-07-25 | 1998-02-10 | Seiko Epson Corp | 液晶表示素子およびその製造方法 |
JP2000281629A (ja) | 1999-03-31 | 2000-10-10 | Fuji Photo Film Co Ltd | 重合性棒状ネマチック液晶性化合物、コレステリック液晶性組成物および液晶表示装置 |
US6177972B1 (en) | 1999-02-04 | 2001-01-23 | International Business Machines Corporation | Polymer stabilized in-plane switched LCD |
EP1170626A2 (de) | 2000-07-07 | 2002-01-09 | Fujitsu Limited | Flüssigkristallanzeigevorrichtung und zugehöriges Herstellungsverfahren |
DE10224046A1 (de) | 2001-06-26 | 2003-01-02 | Merck Patent Gmbh | Flüssigkristallines Medium |
EP1306418A1 (de) | 2001-10-23 | 2003-05-02 | MERCK PATENT GmbH | Flüssigkristallines Medium und Flüssigkristallanzeige |
EP1378557A1 (de) | 2002-07-06 | 2004-01-07 | MERCK PATENT GmbH | Flüssigkristallines Medium |
US20040191428A1 (en) | 2003-03-26 | 2004-09-30 | Fujitsu Display Technologies Corporation | Liquid crystal panel |
US20060066793A1 (en) | 2004-09-24 | 2006-03-30 | Fujitsu Display Technologies Corporation | Liquid crystal display device |
US20060103804A1 (en) | 2004-11-12 | 2006-05-18 | Sharp Kabushiki Kaisha | Liquid crystal display device and method of manufacture of the same |
US7060200B1 (en) | 1999-09-03 | 2006-06-13 | Merck Patent Gmbh | Multireactive polymerizable mesogenic compounds |
US20060172090A1 (en) | 2005-01-28 | 2006-08-03 | Ryushi Syundo | Liquid crystal polyfunctional acrylate derivative and polymer thereof |
US7169449B2 (en) | 2002-04-16 | 2007-01-30 | Sharp Kabushiki Kaisha | Liquid crystal display device |
WO2008121585A1 (en) | 2007-03-29 | 2008-10-09 | Akron Polymer Systems | Optical compensation films with mesogen groups for liquid crystal display |
DE102008036248A1 (de) * | 2007-08-30 | 2009-03-05 | Merck Patent Gmbh | Flüssigkristallanzeige |
DE102009011652A1 (de) * | 2008-03-25 | 2009-10-01 | Merck Patent Gmbh | Flüssigkristallanzeige |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0819049B2 (ja) * | 1989-05-10 | 1996-02-28 | 工業技術院長 | ジヒドロフェナンスレンカルボン酸エステルとその製造方法 |
JP2710222B2 (ja) * | 1995-01-30 | 1998-02-10 | 日本電気株式会社 | 液晶光学素子 |
DE10251861A1 (de) * | 2002-11-07 | 2004-05-19 | Consortium für elektrochemische Industrie GmbH | Polymerisierbare Mischungen |
JP5185503B2 (ja) * | 2005-03-07 | 2013-04-17 | 三菱製紙株式会社 | 光電変換材料、半導体電極並びにそれを用いた光電変換素子 |
CN100334069C (zh) * | 2005-11-14 | 2007-08-29 | 武汉大学 | 可聚合的荧光功能单体的制备方法 |
CN101721944B (zh) * | 2009-12-04 | 2011-12-07 | 青岛科技大学 | 一种聚合物基碳纳米管分散助剂及其合成方法和用途 |
JP5494295B2 (ja) * | 2010-06-30 | 2014-05-14 | 日本ゼオン株式会社 | 重合性化合物、重合性組成物、高分子及び半導体装置 |
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Patent Citations (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2209127A1 (de) | 1972-02-26 | 1973-09-06 | Merck Patent Gmbh | Modifizierte nematische phasen |
DE2338281A1 (de) | 1972-08-03 | 1974-02-21 | Ibm | Verfahren zur gesteuerten veraenderung der elektrischen eigenschaften von nematischen fluessigkeiten und dotierungsmittel hierfuer |
DE2240864A1 (de) | 1972-08-19 | 1974-02-28 | Merck Patent Gmbh | Nematische ester und ihre verwendung zur beeinflussung der elektrooptischen eigenschaften nematischer phasen |
DE2321632A1 (de) | 1973-04-28 | 1974-11-21 | Merck Patent Gmbh | Modifizierte nematische gemische mit positiver dielektrischer anisotropie |
DE2450088A1 (de) | 1974-10-22 | 1976-04-29 | Merck Patent Gmbh | Biphenylester |
DE2636684A1 (de) | 1976-08-14 | 1978-02-16 | Merck Patent Gmbh | Cyclohexanderivate |
DE2637430A1 (de) | 1976-08-20 | 1978-02-23 | Merck Patent Gmbh | Fluessigkristallines dielektrikum |
DE2853728A1 (de) | 1978-12-13 | 1980-07-17 | Merck Patent Gmbh | Fluessigkristalline carbonsaeureester, verfahren zu ihrer herstellung, diese enthaltende dielektrika und elektrooptisches anzeigeelement |
DE3321373A1 (de) | 1983-06-14 | 1984-12-20 | Merck Patent Gmbh, 6100 Darmstadt | Bicyclohexyle |
EP0364538A1 (de) | 1988-03-10 | 1990-04-25 | Merck Patent Gmbh | Difluorbenzolderivate. |
JPH1036847A (ja) | 1996-07-25 | 1998-02-10 | Seiko Epson Corp | 液晶表示素子およびその製造方法 |
US6177972B1 (en) | 1999-02-04 | 2001-01-23 | International Business Machines Corporation | Polymer stabilized in-plane switched LCD |
JP2000281629A (ja) | 1999-03-31 | 2000-10-10 | Fuji Photo Film Co Ltd | 重合性棒状ネマチック液晶性化合物、コレステリック液晶性組成物および液晶表示装置 |
US7060200B1 (en) | 1999-09-03 | 2006-06-13 | Merck Patent Gmbh | Multireactive polymerizable mesogenic compounds |
EP1170626A2 (de) | 2000-07-07 | 2002-01-09 | Fujitsu Limited | Flüssigkristallanzeigevorrichtung und zugehöriges Herstellungsverfahren |
DE10224046A1 (de) | 2001-06-26 | 2003-01-02 | Merck Patent Gmbh | Flüssigkristallines Medium |
EP1306418A1 (de) | 2001-10-23 | 2003-05-02 | MERCK PATENT GmbH | Flüssigkristallines Medium und Flüssigkristallanzeige |
US7169449B2 (en) | 2002-04-16 | 2007-01-30 | Sharp Kabushiki Kaisha | Liquid crystal display device |
US6861107B2 (en) | 2002-07-06 | 2005-03-01 | Merck Patent Gmbh | Liquid-crystalline medium |
EP1378557A1 (de) | 2002-07-06 | 2004-01-07 | MERCK PATENT GmbH | Flüssigkristallines Medium |
US20040191428A1 (en) | 2003-03-26 | 2004-09-30 | Fujitsu Display Technologies Corporation | Liquid crystal panel |
US20060066793A1 (en) | 2004-09-24 | 2006-03-30 | Fujitsu Display Technologies Corporation | Liquid crystal display device |
US20060103804A1 (en) | 2004-11-12 | 2006-05-18 | Sharp Kabushiki Kaisha | Liquid crystal display device and method of manufacture of the same |
US20060172090A1 (en) | 2005-01-28 | 2006-08-03 | Ryushi Syundo | Liquid crystal polyfunctional acrylate derivative and polymer thereof |
WO2008121585A1 (en) | 2007-03-29 | 2008-10-09 | Akron Polymer Systems | Optical compensation films with mesogen groups for liquid crystal display |
DE102008036248A1 (de) * | 2007-08-30 | 2009-03-05 | Merck Patent Gmbh | Flüssigkristallanzeige |
DE102009011652A1 (de) * | 2008-03-25 | 2009-10-01 | Merck Patent Gmbh | Flüssigkristallanzeige |
Non-Patent Citations (15)
Title |
---|
"Merck Liquid Crystals, Physical Properties of Liquid Crystals", November 1997, MERCK KGAA |
A. D. ABELL ET AL., J. CHEM. SOC., PERKIN TRANS., vol. 1, 1997, pages 1663 - 1668 |
APPL. PHYS. LETT., vol. 75, no. 21, 1999, pages 3264 |
C. TSCHIERSKE, G. PELZL, S. DIELE, ANGEW. CHEM., vol. 116, 2004, pages 6340 - 6368 |
G. K. JAYAPRAKASHA ET AL., BIOORGANIC & MEDICINAL CHEMISTRY, vol. 12, 2004, pages 5141 - 5146 |
H. SUZUKI, ORGANIC SYNTHESES, vol. 6, 1988, pages 700 |
HALLER ET AL., MOL. CRYST. LIQ. CRYST., vol. 24, 1973, pages 249 - 258 |
P. SOUSTEK ET AL., DYES AND PIGMENTS, vol. 78, 2008, pages 139 - 147 |
PURE APPL. CHEM., vol. 73, no. 5, 2001, pages 888 |
S. H. KIM, L.-C- CHIEN, JPN. J. APPL. PHYS., vol. 43, 2004, pages 7643 - 7647 |
S. L. BUCHWALD ET AL., J. AM. CHEM. SOC., vol. 128, 2006, pages 10694 - 10695 |
S. SONG ET AL., TETRAHEDRON LETTERS, vol. 49, 2008, pages 3582 - 3587 |
S.H. JUNG ET AL., JPN. J. APPL. PHYS., vol. 43, no. 3, 2004, pages 1028 |
T.-J- CHEN ET AL., JPN. J. APPL. PHYS., vol. 45, 2006, pages 2702 - 2704 |
V.V: FILICHEV ET AL., CHEMISTRY - A EUROPEAN JOURNAL, vol. 14, no. 32, 2008, pages 9968 - 9980 |
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CN113684038A (zh) * | 2013-12-19 | 2021-11-23 | 默克专利股份有限公司 | 调节光透射的设备 |
CN112585243A (zh) * | 2018-08-22 | 2021-03-30 | 默克专利股份有限公司 | 液晶混合物及液晶显示器 |
CN113166648A (zh) * | 2018-12-12 | 2021-07-23 | 默克专利股份有限公司 | 液晶混合物和液晶显示器 |
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CN102959048A (zh) | 2013-03-06 |
KR20130132736A (ko) | 2013-12-05 |
DE102011103182A1 (de) | 2011-12-29 |
KR20170117225A (ko) | 2017-10-20 |
TW201204701A (en) | 2012-02-01 |
JP6125470B2 (ja) | 2017-05-10 |
CN103922932A (zh) | 2014-07-16 |
JP2013535033A (ja) | 2013-09-09 |
KR101803118B1 (ko) | 2017-11-29 |
JP5694525B2 (ja) | 2015-04-01 |
CN102959048B (zh) | 2015-05-20 |
KR101902726B1 (ko) | 2018-09-28 |
TWI532714B (zh) | 2016-05-11 |
JP2015025130A (ja) | 2015-02-05 |
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