CN108239539A - The liquid-crystal composition and its display device of negative dielectric anisotropic - Google Patents
The liquid-crystal composition and its display device of negative dielectric anisotropic Download PDFInfo
- Publication number
- CN108239539A CN108239539A CN201611203692.5A CN201611203692A CN108239539A CN 108239539 A CN108239539 A CN 108239539A CN 201611203692 A CN201611203692 A CN 201611203692A CN 108239539 A CN108239539 A CN 108239539A
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- crystal composition
- compound
- group
- formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
- C09K19/44—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing compounds with benzene rings directly linked
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3001—Cyclohexane rings
- C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3001—Cyclohexane rings
- C09K19/3066—Cyclohexane rings in which the rings are linked by a chain containing carbon and oxygen atoms, e.g. esters or ethers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
- C09K2019/121—Compounds containing phenylene-1,4-diyl (-Ph-)
- C09K2019/122—Ph-Ph
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
- C09K2019/121—Compounds containing phenylene-1,4-diyl (-Ph-)
- C09K2019/123—Ph-Ph-Ph
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3001—Cyclohexane rings
- C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
- C09K2019/3004—Cy-Cy
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3001—Cyclohexane rings
- C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
- C09K2019/301—Cy-Cy-Ph
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3001—Cyclohexane rings
- C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
- C09K2019/3016—Cy-Ph-Ph
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3001—Cyclohexane rings
- C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
- C09K2019/3025—Cy-Ph-Ph-Ph
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13712—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering the liquid crystal having negative dielectric anisotropy
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal Substances (AREA)
Abstract
The invention discloses a kind of liquid-crystal composition of good, fast response time the negative dielectric anisotropic of low-temperature stability, the liquid-crystal composition includes：Account for the negative liquid crystal composition total weight 25 60% one or more of general formulas I 1 and or I 2 compound；Account for the compound of one or more of formulas II of the negative liquid crystal composition total weight 8 20%；Account for the compound of one or more of formulas III of the negative liquid crystal composition total weight 0 25%；Account for the compound of one or more of formulas IV of the negative liquid crystal composition total weight 10 60%；Account for the compound of one or more of formulas V of the negative liquid crystal composition total weight 20 50%.The invention also discloses the liquid crystal display devices of the liquid-crystal composition including the present invention.
Description
Technical Field
The present invention relates to a liquid crystal composition, and more particularly, to a liquid crystal composition having negative dielectric anisotropy, which has characteristics of large dielectric anisotropy in absolute value, a wide nematic phase temperature range, good low-temperature stability, a high clearing point, high optical anisotropy, and the like, and a liquid crystal display device including the same.
Background
Liquid crystal display devices have been used in various household electric appliances, measuring devices, panels for automobiles, word processors, electronic notepads, printers, computers, televisions, and the like, from clocks and calculators. Representative liquid crystal display modes include TN (twisted nematic) mode, STN (super twisted nematic) mode, DS (dynamic light scattering) mode, GH (guest host) mode, IPS (in-plane switching) mode, OCB (optically compensated birefringence) mode, ECB (voltage controlled birefringence) mode, VA (vertically aligned) mode, CSH (color super vertical) mode, FLC (ferroelectric liquid crystal) mode, and the like. Further, as a driving method of the liquid crystal display device, a static driving, a multiplex driving, a simple matrix method, an Active Matrix (AM) method of driving by a TFT (thin film transistor), a TFD (thin film diode), or the like can be given.
Among these display systems, the IPS mode, ECB mode, VA mode, CSH mode, and the like have a characteristic of using a liquid crystal composition having a negative dielectric anisotropy Δ ∈. Among these display systems, the VA display system driven by AM is used for display elements (for example, televisions) which require high-speed response and a wide viewing angle.
Liquid crystal materials need to have suitably high dielectric anisotropy, optical anisotropy, and good low-temperature mutual solubility and thermal stability. In addition, the liquid crystal material should also have low viscosity and short response time, low threshold voltage and high contrast. The anisotropy of the composition is further described with reference to a commercially available liquid crystal display device. The temperature range of the nematic phase is associated with the operating temperature range of the element. The upper limit temperature of the nematic phase is preferably 70 ℃ or higher, and the lower limit temperature of the nematic phase is preferably-10 ℃ or lower. The viscosity of the composition correlates to the response time of the element. In order to display animation in the element, it is preferable that the response time of the element is short. Therefore, it is preferable that the viscosity of the composition is small, and it is more preferable that the viscosity of the composition is small at a low temperature.
The optical anisotropy of the composition correlates with the contrast of the element. In order to maximize the contrast ratio of the liquid crystal display element, the product value (Δ n × d) of the optical anisotropy (Δ n) of the liquid crystal composition and the thickness (d) of the liquid crystal layer may be designed to be a fixed value. The appropriate product value depends on the kind of operation mode. A suitable value for an element like TN mode is about 0.45 μm. In this case, a composition having a large optical anisotropy is preferable for an element having a small liquid crystal layer thickness.
A liquid crystal display element containing a liquid crystal composition having a large absolute value of dielectric anisotropy can reduce the base voltage value, reduce the driving voltage, and further reduce the power consumption.
The liquid crystal display element containing the liquid crystal composition with lower threshold voltage can effectively reduce the power consumption of display, and has longer endurance time particularly in consumables and portable electronic products such as mobile phones and tablet computers.
The liquid crystal composition with low viscosity can improve the response speed of the liquid crystal display element. When the response speed of the liquid crystal display element is high, the liquid crystal display element is applicable to animation display. Further, when the liquid crystal composition is injected into the liquid crystal cell of the liquid crystal display element, the injection time can be shortened, and the workability can be improved.
The prior art discloses a liquid crystal composition with low power consumption and fast response, such as patent document CN102858918A, but the prior art has environmental problems (such as use of chlorine-containing compounds), short service life (such as poor UV or thermal stability), low contrast (such as whitening of display screen under sunlight), and cannot balance the performance balance problems of requiring appropriate optical anisotropy, appropriate dielectric anisotropy, high voltage holding ratio, UV stability and high temperature stability in lcd televisions, tablet computers, etc., and cannot simultaneously satisfy all the indexes.
From the preparation angle of the liquid crystal material, various performances of the liquid crystal material are mutually influenced by the influence, and other performances may be changed by the improvement of a certain performance index. Therefore, creative efforts are often required to prepare liquid crystal materials having suitable properties in all aspects.
The liquid crystal material is an important component of the liquid crystal display, and the liquid crystal display has great market demand at present, is mostly used in electronic and electric products, but has a short life cycle. The problem of waste pollution naturally exists in a short life cycle, and under the condition that the current green environmental protection problem is increasingly emphasized by various social circles, if the problem can be controlled from a source, namely, an environment-friendly green material is selected in the modulation process of the liquid crystal material, the environmental cost for treating the waste liquid crystal display can be greatly reduced. Therefore, creative labor is often needed to prepare the liquid crystal material with proper performance in all aspects, economy and environmental protection.
Disclosure of Invention
The invention aims to provide a liquid crystal composition with negative dielectric anisotropy, which has the characteristics of large absolute dielectric anisotropy, wide nematic phase temperature range, good low-temperature stability, higher clearing point, higher optical anisotropy and the like, and particularly has higher response speed even at low temperature, so that a display device comprising the liquid crystal composition is particularly suitable for being used in a low-temperature working environment.
It is another object of the present invention to provide a display device comprising the liquid crystal composition of negative dielectric anisotropy.
In order to accomplish the above object of the invention, the present invention provides a liquid crystal composition having negative dielectric anisotropy, comprising:
25-60% of one or more compounds of general formula I-1 and/or I-2, based on the total weight of the negative liquid crystal composition
8-20% of one or more compounds of formula II based on the total weight of the negative liquid crystal composition
0-25% by weight of one or more compounds of the general formula III based on the total weight of the negative liquid crystal composition
One or more compounds of formula IV accounting for 10-60 percent of the total weight of the negative liquid crystal composition
20-50% of one or more compounds of formula V, based on the total weight of the negative liquid crystal composition
Wherein,
R1、R2、R3、R4、R5、R6、R7、R8、R9and R10The same or different, each independently represents a halogenated or non-halogenated linear or branched alkyl or alkoxy group having 1 to 12 carbon atoms, a halogenated or non-halogenated alkenyl or alkenyloxy group having 2 to 12 carbon atoms;
are the same or different and each independently represents The above-mentionedOne or more H atoms in (a) may be substituted by F atoms;
x represents-CH2O-、-CH2CH2-, -COO-, -is identical to or a single bond;
n represents 0 or 1;
a represents 0, 1 or 2, whereinWhen a is 0, a ringIs not simultaneously representedWhen a is 2, 2 ringsMay be the same or different.
In some embodiments of the invention, it is preferred that R is1、R2、R3、R4、R5、R6、R7、R8、R9And R10The alkyl or alkoxy groups may be the same or different and each independently represents a linear or branched alkyl or alkoxy group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms; further preferably said R1、R2、R3、R4、R5、R6、R7、R8、R9And R10The alkyl or alkoxy groups may be the same or different and each independently represents a linear or branched alkyl or alkoxy group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms; the R is4Independently represents a linear or branched alkyl group having 1 to 5 carbon atoms.
In some embodiments of the invention, it is preferred that theAre the same or different and each independently representsThe above-mentionedMay be substituted by a F atom, whereinIn which one or more H atoms may be replaced by FThe substitution positions of the atoms are not adjacent.
In some embodiments of the present invention, it is preferred that the compounds of formula I-1 and/or I-2 comprise 25 to 45% by weight of the total negative liquid crystal composition; the compound of the general formula II accounts for 8-15% of the total weight of the negative liquid crystal composition; the compound of the general formula III accounts for 0 to 20 percent of the total weight of the negative liquid crystal composition; the compound of the general formula IV accounts for 10-50% of the total weight of the negative liquid crystal composition; and the compound of the general formula V accounts for 20-45% of the total weight of the negative liquid crystal composition.
In some embodiments of the present invention, it is preferred that the compounds of formula I-1 and/or I-2 comprise 25 to 45% by weight of the total negative liquid crystal composition; the compound of the general formula II accounts for 8-15% of the total weight of the negative liquid crystal composition; the compound of the general formula III accounts for 0 to 15 percent of the total weight of the negative liquid crystal composition; the compound of the general formula IV accounts for 10-45% of the total weight of the negative liquid crystal composition; and the compound of the general formula V accounts for 20-40% of the total weight of the negative liquid crystal composition.
In some embodiments of the present invention, it is preferred that the compounds of formula I-1 and/or I-2 comprise 29 to 45% by weight of the total negative liquid crystal composition; the compound of the general formula II accounts for 8-15% of the total weight of the negative liquid crystal composition; the compound of the general formula III accounts for 1-15% of the total weight of the negative liquid crystal composition; the compound of the general formula IV accounts for 14-45% of the total weight of the negative liquid crystal composition; and the compound of the general formula V accounts for 20-40% of the total weight of the negative liquid crystal composition.
In some embodiments of the present invention, it is preferred that the compound of formula I-1 is selected from the group consisting of:
in some embodiments of the present invention, it is particularly preferred that the compound of formula I-1 is selected from the group consisting of:
in some embodiments of the present invention, it is preferred that the compound of formula I-1 comprises from 0 to 30%, more preferably from 10 to 30% by weight of the total weight of the negative liquid crystal composition; further preferably 12 to 30%; further preferably 15 to 30%; more preferably 15 to 30%.
In some embodiments of the present invention, it is preferred that the compound of formula I-2 is selected from the group consisting of:
in some embodiments of the present invention, it is particularly preferred that the compound of formula I-2 is selected from the group consisting of:
in some embodiments of the present invention, it is preferred that the compound of formula I-2 comprises from 0 to 30% by weight of the total negative liquid crystal composition; more preferably 10 to 30%, still more preferably 15 to 28%, still more preferably 15 to 25%.
In some embodiments of the invention, it is preferred that the compound of formula iii is selected from the group consisting of:
in some embodiments of the present invention, it is preferred that the compound of formula iv is selected from the group consisting of:
wherein,
R7and R8The same or different, each independently represents a linear or branched alkyl group or alkoxy group having 1 to 12 carbon atoms, an alkenyl group or alkenyloxy group having 2 to 12 carbon atoms.
In some embodiments of the present invention, it is preferred that the compound of formula IV-1 is selected from the group consisting of:
in some embodiments of the present invention, it is preferred that the compound of formula IV-2 is selected from the group consisting of:
in some embodiments of the present invention, it is preferred that the compound of formula IV-3 is selected from the group consisting of:
in some embodiments of the present invention, it is preferred that the compound of formula IV-4 is selected from the group consisting of:
in some embodiments of the present invention, it is preferred that the compound of formula IV-5 is selected from the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v is selected from one or more compounds in the group consisting of:
wherein,
R9and R10The same or different, each independently represents an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkenyloxy group having 2 to 5 carbon atoms.
In some embodiments of the present invention, preferably, the compound of formula v-1 is selected from one or more compounds of the group consisting of:
in some embodiments of the present invention, it is preferred that the compound of formula V-1 comprises 20 to 45%, more preferably 25 to 42% by weight of the total weight of the negative liquid crystal composition.
In some embodiments of the present invention, preferably, the compound of formula v-2 is selected from one or more compounds of the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-3 is selected from one or more compounds of the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-4 is selected from one or more compounds of the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-5 is selected from one or more compounds of the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-6 is selected from one or more compounds of the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-7 is selected from one or more compounds of the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-8 is selected from one or more compounds of the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-9 is selected from one or more compounds of the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-10 is selected from one or more compounds in the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-11 is selected from one or more compounds in the group consisting of:
in some embodiments of the present invention, preferably, the compound of formula v-12 is selected from one or more compounds of the group consisting of:
another aspect of the present invention provides a liquid crystal composition having negative dielectric anisotropy, further comprising one or more additives known to those skilled in the art and described in the literature.
The stabilizers which may be added to the mixtures according to the invention are mentioned below, for example.
Preferably, the stabilizer is selected from the group consisting of the stabilizers shown below.
In the embodiment of the present invention, it is preferable that the stabilizer accounts for 0 to 5% by weight of the total weight of the liquid crystal composition; more preferably, the stabilizer accounts for 0-1% of the total weight of the liquid crystal composition; as a particularly preferred scheme, the stabilizing agent accounts for 0.01-0.1% of the total weight of the liquid crystal composition.
In still another aspect of the present invention, there is also provided a liquid crystal display comprising the liquid crystal composition provided by the present invention.
By adopting the technical scheme, compared with the prior art, the invention has the following technical effects:
the negative liquid crystal composition provided by the invention has the characteristics of large dielectric anisotropy, wider nematic phase temperature range, good low-temperature stability, higher clearing point, higher optical anisotropy and the like, and particularly has higher response speed even at low temperature, so that a display device comprising the liquid crystal composition is particularly suitable for low-temperature working environment.
The combination of the compound of formula II with the compound of formula I-1 and/or formula I-2 in the present invention can achieve the effect of improving the low temperature stability and low temperature response time of a liquid crystal composition comprising the compound of formula II and the compound of formula I-1 and/or formula I-2.
Unless otherwise specified, the proportions recited in the present invention are by weight and all temperatures are in degrees Celsius.
Detailed Description
The invention will be illustrated below with reference to specific embodiments. It should be noted that the following examples are illustrative of the present invention, and are not intended to limit the present invention. Other combinations and various modifications within the spirit or scope of the present invention may be made without departing from the spirit or scope of the present invention.
The liquid crystal displays used in the following embodiments are all negative liquid crystal display devices, and each of the liquid crystal displays has a cell thickness d of 4 μm and is composed of a polarizer (polarizing plate), an electrode substrate, and the like. The display device is in a normally white mode, i.e. when no voltage difference is applied between the row and column electrodes, a viewer perceives a pixel color that is white. The upper and lower polarizer axes on the substrate are at a 90 degree angle to each other. The space between the two substrates is filled with an optical liquid crystal material.
For convenience of expression, in the following examples, the group structure of the liquid crystal composition is represented by the code listed in Table 1:
TABLE 1 radical structural code of liquid crystal compounds
Compounds of the following formula are exemplified:
the structural formula is represented by the code listed in Table 2, and can be expressed as: 2PWP3, 2 in the code indicates a left end of-C2H5And 3 represents a right end of-C3H7(ii) a P in the code represents 1, 4-cyclohexylene; w represents 2, 3-difluoro-1, 4-phenylene.
The abbreviated codes of the test items in the following examples are as follows:
Δ n: optical anisotropy (589nm, 25 ℃ C.)
Δ ε: dielectric anisotropy (1KHz, 25 ℃ C.)
Cp clearing Point (C, nematic-isotropic phase transition temperature)
Wherein the optical anisotropy is obtained by testing an Abbe refractometer under a sodium lamp (589nm) light source at 25 ℃; the dielectric test cell is of the VA6.0 type and has a cell thickness of 6 μm.
Δ ∈ | -epsilon ⊥, where epsilon | is the dielectric constant parallel to the molecular axis, epsilon ⊥ is the dielectric constant perpendicular to the molecular axis, test conditions 25 ℃, 1KHz, test cell VA6.0, cell thickness 6 μm.
Test conditions for low temperature stability: 7 μm Low temperature storage boxes (cells) were used for storage at-40 ℃ and-30 ℃ and 5ml liquid Crystal storage bottles (bottles) were used for storage at-30 ℃ and-20 ℃.
The response time is measured by using a DMS505 tester at 25 ℃, 0 ℃, 10 ℃ and 20 ℃; the test cell is a VA4.0 test cell, the thickness of the cell is 4 μm, the frequency is 1000HZ, and the driving voltage is V90.
The components used in the following examples can be synthesized by a known method or obtained commercially. These synthesis techniques are conventional, and the resulting liquid crystal compounds were tested to meet the standards for electronic compounds.
Liquid crystal compositions were prepared according to the compounding ratios of the liquid crystal compositions specified in the following examples. The liquid crystal composition is prepared according to the conventional method in the field, such as heating, ultrasonic wave, suspension and the like, and is mixed according to the specified proportion.
Comparative example 1
The liquid crystal composition of comparative example 1, which was filled between two substrates of a liquid crystal display and subjected to a performance test, was prepared according to the compounds and weight percentages listed in table 2, and the test data are shown in the following table:
TABLE 2 liquid crystal composition formulations and their test properties
Example 1
The liquid crystal composition of example 1 was prepared according to the compounds and weight percentages listed in table 3, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 3 liquid crystal composition formula and its test performance
The liquid crystal compositions of comparative example 1 and example 1 were poured into a4 μm test cell (cell), the crystallization of the liquid crystal compositions of comparative example 1 and example 1 at-40 ℃ and-20 ℃ was observed, the liquid crystal compositions of comparative example 1 and example 1 were poured into a storage bottle (bottle), the crystallization of the liquid crystal compositions of comparative example 1 and example 1 at-30 ℃ and-20 ℃ was observed, and the test data are shown in Table 4:
TABLE 4
The liquid crystal compositions described in comparative example 1 and example 1 were filled into a test cell of 4 μm, and the response times of the liquid crystal compositions described in comparative example 1 and example 1 at 25 ℃, 0 ℃, 10 ℃ and-20 ℃ were measured, and the test data are shown in Table 5:
TABLE 5
As can be seen by comparing the data of example 1 and comparative example 1, the liquid crystal composition described in example 1 has a large absolute value of dielectric anisotropy, a high clearing point, good low-temperature storage properties, and still has a fast response speed at low temperature.
Example 2
The liquid crystal composition of example 2 was prepared according to the compounds and weight percentages listed in table 6, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 6 liquid crystal composition formula and its test performance
The liquid crystal compositions of comparative example 1 and example 2 were poured into a4 μm test cell (cell), the crystallization of the liquid crystal compositions of comparative example 1 and example 2 at-40 ℃ and-20 ℃ was observed, the liquid crystal compositions of comparative example 1 and example 2 were poured into a storage bottle (bottle), the crystallization of the liquid crystal compositions of comparative example 1 and example 2 at-30 ℃ and-20 ℃ was observed, and the test data are shown in Table 7:
TABLE 7
The liquid crystal compositions described in comparative example 1 and example 2 were filled into a test cell of 4 μm, and the response times of the liquid crystal compositions described in comparative example 1 and example 2 at 25 ℃, 0 ℃, -10 ℃ and-20 ℃ were measured, and the test data are shown in Table 8:
TABLE 8
As can be seen by comparing the data of example 2 and comparative example 1, the liquid crystal composition described in example 2 has a large absolute value of dielectric anisotropy, a high clearing point, good low-temperature storage properties, and still has a fast response speed at low temperature.
Example 3
The liquid crystal composition of example 3 was prepared according to the compounds and weight percentages listed in table 9, and filled between two substrates of a liquid crystal display for performance testing, the test data are shown in the following table:
TABLE 9 liquid crystal composition formulations and their test properties
The liquid crystal compositions of comparative example 1 and example 3 were poured into a4 μm test cell (cell), the crystallization of the liquid crystal compositions of comparative example 1 and example 3 at-40 ℃ and-20 ℃ was observed, the liquid crystal compositions of comparative example 1 and example 3 were poured into a storage bottle (bottle), the crystallization of the liquid crystal compositions of comparative example 1 and example 3 at-30 ℃ and-20 ℃ was observed, and the test data are shown in Table 10:
watch 10
The liquid crystal compositions described in comparative example 1 and example 3 were filled into a test cell of 4 μm, and the response times of the liquid crystal compositions described in comparative example 1 and example 3 at 25 ℃, 0 ℃, 10 ℃ and-20 ℃ were measured, and the test data are shown in Table 11:
TABLE 11
As can be seen by comparing the data of example 3 and comparative example 1, the liquid crystal composition described in example 3 has a large absolute value of dielectric anisotropy, a high clearing point, good low-temperature storage properties, and still has a fast response speed at low temperature.
Example 4
The liquid crystal composition of example 4 was prepared according to the following compounds and weight percentages listed in table 12, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 12 liquid crystal composition formulations and their test properties
The liquid crystal compositions of comparative example 1 and example 4 were poured into a4 μm test cell (cell), the crystallization of the liquid crystal compositions of comparative example 1 and example 4 at-40 ℃ and-20 ℃ was observed, the liquid crystal compositions of comparative example 1 and example 4 were poured into a storage bottle (bottle), the crystallization of the liquid crystal compositions of comparative example 1 and example 4 at-30 ℃ and-20 ℃ was observed, and the test data are shown in Table 13:
watch 13
The liquid crystal compositions described in comparative example 1 and example 4 were filled into a test cell of 4 μm, and the response times of the liquid crystal compositions described in comparative example 1 and example 4 at 25 ℃, 0 ℃, 10 ℃ and-20 ℃ were measured, and the test data are shown in Table 14:
TABLE 14
As can be seen by comparing the data of example 4 and comparative example 1, the liquid crystal composition described in example 4 has a large absolute value of dielectric anisotropy, a high clearing point, good low-temperature storage properties, and still has a fast response speed at low temperature.
Example 5
The liquid crystal composition of example 5 was prepared according to the following compounds and weight percentages in Table 15, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 15 liquid crystal composition formulations and their test properties
The liquid crystal compositions of comparative example 1 and example 5 were poured into a4 μm test cell (cell), the crystallization of the liquid crystal compositions of comparative example 1 and example 5 at-40 ℃ and-20 ℃ was observed, the liquid crystal compositions of comparative example 1 and example 5 were poured into a storage bottle (bottle), the crystallization of the liquid crystal compositions of comparative example 1 and example 5 at-30 ℃ and-20 ℃ was observed, and the test data are shown in Table 16:
TABLE 16
The liquid crystal compositions described in comparative example 1 and example 5 were filled into a test cell of 4 μm, and the response times of the liquid crystal compositions described in comparative example 1 and example 4 at 25 ℃, 0 ℃, 10 ℃ and-20 ℃ were measured, and the test data are shown in Table 17:
TABLE 17
As can be seen by comparing the data of example 5 and comparative example 1, the liquid crystal composition described in example 5 has a large absolute value of dielectric anisotropy, a high clearing point, good low-temperature storage properties, and still has a fast response speed at low temperature.
Example 6
The liquid crystal composition of example 6 was prepared according to the following compounds and weight percentages in Table 18, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 18 liquid crystal composition formulations and their test properties
The liquid crystal compositions of comparative example 1 and example 6 were poured into a4 μm test cell (cell), the crystallization of the liquid crystal compositions of comparative example 1 and example 6 at-40 ℃ and-20 ℃ was observed, the liquid crystal compositions of comparative example 1 and example 6 were poured into a storage bottle (bottle), the crystallization of the liquid crystal compositions of comparative example 1 and example 6 at-30 ℃ and-20 ℃ was observed, and the test data are shown in Table 19:
watch 19
The liquid crystal compositions described in comparative example 1 and example 6 were filled into a test cell of 4 μm, and the response times of the liquid crystal compositions described in comparative example 1 and example 6 at 25 deg.C, 0 deg.C, -10 deg.C and-20 deg.C were measured, and the test data are shown in Table 20:
watch 20
As can be seen by comparing the data of example 6 and comparative example 1, the liquid crystal composition described in example 1 has a large absolute value of dielectric anisotropy, a high clearing point, good low-temperature storage properties, and still has a fast response speed at low temperature.
Example 7
The liquid crystal composition of example 7 was prepared according to the following compounds and weight percentages in Table 21, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 21 liquid crystal composition formulations and their test properties
The liquid crystal compositions of comparative example 1 and example 7 were poured into a4 μm test cell (cell), the crystallization of the liquid crystal compositions of comparative example 1 and example 7 at-40 ℃ and-20 ℃ was observed, the liquid crystal compositions of comparative example 1 and example 7 were poured into a storage bottle (bottle), the crystallization of the liquid crystal compositions of comparative example 1 and example 7 at-30 ℃ and-20 ℃ was observed, and the test data are shown in Table 22:
TABLE 22
The liquid crystal compositions described in comparative example 1 and example 7 were filled into a test cell of 4 μm, and the response times of the liquid crystal compositions described in comparative example 1 and example 7 at 25 ℃, 0 ℃, 10 ℃ and-20 ℃ were measured, and the test data are shown in Table 23:
TABLE 23
As can be seen from comparison of the data of example 7 and comparative example 1, the liquid crystal composition of example 1 has a large absolute value of dielectric anisotropy, a high clearing point, good low-temperature storage properties, and still has a fast response speed at low temperature.
Example 8
The liquid crystal composition of example 8 was prepared according to the following compounds and weight percentages in Table 24, and filled between two substrates of a liquid crystal display for performance testing, and the test data are shown in the following table:
TABLE 24 liquid crystal composition formulations and their test properties
The liquid crystal compositions of comparative example 1 and example 8 were poured into a4 μm test cell (cell), the crystallization of the liquid crystal compositions of comparative example 1 and example 8 at-40 ℃ and-20 ℃ was observed, the liquid crystal compositions of comparative example 1 and example 8 were poured into a storage bottle (bottle), the crystallization of the liquid crystal compositions of comparative example 1 and example 8 at-30 ℃ and-20 ℃ was observed, and the test data are shown in Table 25:
TABLE 25
The liquid crystal compositions of comparative example 1 and example 8 were filled into a test cell of 4 μm, and the response times of the liquid crystal compositions of comparative example 1 and example 8 at 25 ℃, 0 ℃, 10 ℃ and-20 ℃ were measured, and the test data are shown in Table 26:
watch 26
As can be seen by comparing the data of example 8 and comparative example 1, the liquid crystal composition described in example 1 has a large absolute value of dielectric anisotropy, a high clearing point, good low-temperature storage properties, and still has a fast response speed at low temperature.
As can be seen from the above comparative examples and examples, the negative liquid crystal composition of the present invention has characteristics of large absolute value of dielectric anisotropy, wide nematic phase temperature range, good low temperature stability, and higher clearing point, higher optical anisotropy, and the like, and particularly the negative liquid crystal composition of the present invention has a faster response speed even at low temperature, and thus, a display device comprising the liquid crystal composition of the present invention is particularly suitable for use in a low temperature working environment.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and equivalent changes and modifications made according to the spirit of the present invention should be covered thereby.
Claims (9)
1. A liquid crystal composition having negative dielectric anisotropy, comprising:
25-60% of one or more compounds of general formula I-1 and/or I-2, based on the total weight of the negative liquid crystal composition
8-20% of a compound of formula II based on the total weight of the negative liquid crystal composition
0-25% by weight of one or more compounds of the general formula III based on the total weight of the negative liquid crystal composition
One or more compounds of formula IV accounting for 10-60 percent of the total weight of the negative liquid crystal composition
And
20-50% of one or more compounds of formula V, based on the total weight of the negative liquid crystal composition
Wherein,
R1、R2、R3、R4、R5、R6、R7、R8、R9and R10The same or different, each independently represents a halogenated or non-halogenated linear or branched alkyl or alkoxy group having 1 to 12 carbon atoms, a halogenated or non-halogenated alkenyl or alkenyloxy group having 2 to 12 carbon atoms;
x represents-CH2O-、-CH2CH2-, -COO-, -is identical to or a single bond;
n represents 0 or 1;
are the same or different and each independently represents The above-mentionedOne or more H atoms in (a) may be substituted by F atoms;
a represents 0, 1 or 2, wherein, when a is 0, a ringIs not simultaneously representedWhen a is 2, 2 ringsMay be the same or different.
2. The negative dielectric anisotropy liquid crystal composition according to claim 1, wherein the compound of formula i-1 is selected from the group consisting of:
3. the negative dielectric anisotropy liquid crystal composition according to claim 1, wherein the compound of formula i-2 is selected from the group consisting of:
4. the negative dielectric anisotropy liquid crystal composition of claim 1, wherein the compound of formula iii is selected from the group consisting of:
5. the negative dielectric anisotropy liquid crystal composition of claim 1, wherein the compound of formula iv is selected from the group consisting of:
wherein,
R7and R8The same or different, each independently represents a linear or branched alkyl group or alkoxy group having 1 to 12 carbon atoms, an alkenyl group or alkenyloxy group having 2 to 12 carbon atoms.
6. The negative dielectric anisotropy liquid crystal composition of claim 1, wherein the compound of formula v is one or more compounds selected from the group consisting of:
wherein,
R9and R10The same or different, each independently represents an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkenyloxy group having 2 to 5 carbon atoms.
7. A liquid crystal composition having negative dielectric anisotropy comprising the liquid crystal composition according to any one of claims 1 to 6, characterized in that the liquid crystal composition further comprises one or more additives.
8. A liquid crystal display comprising the liquid crystal composition according to any one of claims 1 to 6.
9. A liquid crystal display comprising the liquid crystal composition according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203692.5A CN108239539A (en) | 2016-12-23 | 2016-12-23 | The liquid-crystal composition and its display device of negative dielectric anisotropic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611203692.5A CN108239539A (en) | 2016-12-23 | 2016-12-23 | The liquid-crystal composition and its display device of negative dielectric anisotropic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108239539A true CN108239539A (en) | 2018-07-03 |
Family
ID=62703747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611203692.5A Pending CN108239539A (en) | 2016-12-23 | 2016-12-23 | The liquid-crystal composition and its display device of negative dielectric anisotropic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108239539A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113621385A (en) * | 2021-08-10 | 2021-11-09 | 重庆汉朗精工科技有限公司 | Wide-temperature-range fast-response negative liquid crystal composition and application thereof |
| CN113717736A (en) * | 2021-08-10 | 2021-11-30 | 重庆汉朗精工科技有限公司 | Negative liquid crystal composition with quick response and application thereof |
| WO2021253628A1 (en) * | 2020-06-16 | 2021-12-23 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition, liquid crystal display element, and liquid crystal display |
| CN114231294A (en) * | 2021-12-27 | 2022-03-25 | 苏州汉朗光电有限公司 | Negative liquid crystal composition and application thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1977031A (en) * | 2004-07-02 | 2007-06-06 | 默克专利股份有限公司 | Liquid crystal medium |
| JP2012077201A (en) * | 2010-10-01 | 2012-04-19 | Dic Corp | Nematic liquid crystal composition and liquid crystal display element using the same |
| CN103119127A (en) * | 2010-10-04 | 2013-05-22 | 捷恩智株式会社 | Liquid crystal composition and liquid crystal display device |
| CN103215046A (en) * | 2011-12-20 | 2013-07-24 | 默克专利股份有限公司 | Liquid crystalline medium |
| JP2015040285A (en) * | 2013-08-23 | 2015-03-02 | Dic株式会社 | Liquid crystal composition and liquid crystal display device using the same |
| CN104498052A (en) * | 2011-04-06 | 2015-04-08 | Dic株式会社 | Nematic Liquid Crystal Composition, Liquid Crystal Display Element Using Same |
| CN104593011A (en) * | 2015-02-15 | 2015-05-06 | 石家庄诚志永华显示材料有限公司 | Cyclopropyl-contained negative dielectric anisotropic liquid crystal medium and application thereof |
| CN105556380A (en) * | 2013-09-20 | 2016-05-04 | Dic株式会社 | Liquid crystal display element and manufacturing method thereof |
| TW201627409A (en) * | 2015-01-20 | 2016-08-01 | 捷恩智股份有限公司 | Liquid crystal composition, use thereof, and liquid crystal display device |
| CN105969403A (en) * | 2016-05-12 | 2016-09-28 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition |
-
2016
- 2016-12-23 CN CN201611203692.5A patent/CN108239539A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1977031A (en) * | 2004-07-02 | 2007-06-06 | 默克专利股份有限公司 | Liquid crystal medium |
| JP2012077201A (en) * | 2010-10-01 | 2012-04-19 | Dic Corp | Nematic liquid crystal composition and liquid crystal display element using the same |
| CN103119127A (en) * | 2010-10-04 | 2013-05-22 | 捷恩智株式会社 | Liquid crystal composition and liquid crystal display device |
| CN104498052A (en) * | 2011-04-06 | 2015-04-08 | Dic株式会社 | Nematic Liquid Crystal Composition, Liquid Crystal Display Element Using Same |
| CN103215046A (en) * | 2011-12-20 | 2013-07-24 | 默克专利股份有限公司 | Liquid crystalline medium |
| JP2015040285A (en) * | 2013-08-23 | 2015-03-02 | Dic株式会社 | Liquid crystal composition and liquid crystal display device using the same |
| CN105556380A (en) * | 2013-09-20 | 2016-05-04 | Dic株式会社 | Liquid crystal display element and manufacturing method thereof |
| TW201627409A (en) * | 2015-01-20 | 2016-08-01 | 捷恩智股份有限公司 | Liquid crystal composition, use thereof, and liquid crystal display device |
| CN104593011A (en) * | 2015-02-15 | 2015-05-06 | 石家庄诚志永华显示材料有限公司 | Cyclopropyl-contained negative dielectric anisotropic liquid crystal medium and application thereof |
| CN105969403A (en) * | 2016-05-12 | 2016-09-28 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021253628A1 (en) * | 2020-06-16 | 2021-12-23 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition, liquid crystal display element, and liquid crystal display |
| CN113621385A (en) * | 2021-08-10 | 2021-11-09 | 重庆汉朗精工科技有限公司 | Wide-temperature-range fast-response negative liquid crystal composition and application thereof |
| CN113717736A (en) * | 2021-08-10 | 2021-11-30 | 重庆汉朗精工科技有限公司 | Negative liquid crystal composition with quick response and application thereof |
| CN114231294A (en) * | 2021-12-27 | 2022-03-25 | 苏州汉朗光电有限公司 | Negative liquid crystal composition and application thereof |
| CN114231294B (en) * | 2021-12-27 | 2024-04-19 | 重庆汉朗精工科技有限公司 | Negative liquid crystal composition and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108659857B (en) | Liquid crystal composition having positive dielectric anisotropy and display device thereof | |
| CN108728116B (en) | Liquid crystal composition and display device thereof | |
| CN103351878A (en) | Liquid crystal composition containing cyclopentyl and difluoromethoxy ether compound | |
| CN108728117A (en) | A kind of liquid-crystal composition and its display device | |
| CN108659858A (en) | Liquid-crystal composition with positive dielectric anisotropy and its display device | |
| CN109575943A (en) | Liquid-crystal composition and its liquid crystal display device | |
| CN108239539A (en) | The liquid-crystal composition and its display device of negative dielectric anisotropic | |
| CN109575942B (en) | Liquid crystal composition and liquid crystal display device thereof | |
| CN105441085A (en) | A liquid crystal composition and a liquid crystal display element containing the same | |
| CN108239544B (en) | Liquid crystal composition with negative dielectric anisotropy and display device thereof | |
| CN113667493A (en) | Liquid crystal composition and liquid crystal display device | |
| CN108239549B (en) | Liquid crystal composition with negative dielectric anisotropy and display device thereof | |
| CN107663458A (en) | Liquid-crystal composition and its display device | |
| KR20170088297A (en) | Liquid crystal composition | |
| CN108239548B (en) | Liquid crystal composition with high voltage stability and good frequency dependence and display device thereof | |
| KR101308469B1 (en) | Liquid crystal composition for high speed response time | |
| CN108239547B (en) | Liquid crystal composition with negative dielectric anisotropy and display device thereof | |
| CN108659856B (en) | Liquid crystal composition having positive dielectric anisotropy and display device thereof | |
| CN109135764B (en) | Liquid crystal composition with negative dielectric anisotropy and liquid crystal display device | |
| CN108239545B (en) | Liquid crystal composition having negative dielectric anisotropy and display device thereof | |
| CN108239542A (en) | Liquid-crystal composition and its display device with negative dielectric anisotropic | |
| CN105331370B (en) | Negative liquid crystal composition and its application | |
| CN108659859B (en) | Liquid crystal composition having positive dielectric anisotropy and display device thereof | |
| CN104593006A (en) | Liquid crystal composition and application thereof | |
| CN104593010A (en) | Liquid crystal composition and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Building 2, Sino Japan Cooperation Innovation Park, No. 16, Zidan Road, Qinhuai District, Nanjing, Jiangsu Province, 210000 Applicant after: JIANGSU HECHENG DISPLAY TECHNOLOGY Co.,Ltd. Address before: 212212 East Side of Yangzhong Yangtze River Bridge, Zhenjiang City, Jiangsu Province Applicant before: JIANGSU HECHENG DISPLAY TECHNOLOGY Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180703 |
|
| RJ01 | Rejection of invention patent application after publication |