WO2014190682A1 - 蓝相液晶复合材料和含该材料的液晶显示器 - Google Patents

蓝相液晶复合材料和含该材料的液晶显示器 Download PDF

Info

Publication number
WO2014190682A1
WO2014190682A1 PCT/CN2013/087264 CN2013087264W WO2014190682A1 WO 2014190682 A1 WO2014190682 A1 WO 2014190682A1 CN 2013087264 W CN2013087264 W CN 2013087264W WO 2014190682 A1 WO2014190682 A1 WO 2014190682A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
phase liquid
blue phase
composite material
crystal composite
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.)
Ceased
Application number
PCT/CN2013/087264
Other languages
English (en)
French (fr)
Inventor
杨槐
李毕荣
何万里
王玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BOE Technology Group Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US14/355,248 priority Critical patent/US9567523B2/en
Publication of WO2014190682A1 publication Critical patent/WO2014190682A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • C09K19/02—Liquid crystal materials characterised by optical, electrical or physical properties of the components, in general
    • C09K19/0275—Blue phase
    • 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
    • C09K19/14—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain
    • C09K19/18—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain the chain containing carbon-to-carbon triple bonds, e.g. tolans
    • 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
    • C09K19/32—Non-steroidal liquid crystal compounds containing condensed ring systems, i.e. fused, bridged or spiro ring systems
    • C09K19/322—Compounds containing a naphthalene ring or a completely or partially hydrogenated naphthalene ring
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/54—Additives having no specific mesophase characterised by their chemical composition
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/54—Additives having no specific mesophase characterised by their chemical composition
    • C09K19/542—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/58—Dopants or charge transfer agents
    • C09K19/586—Optically active dopants; chiral dopants
    • C09K19/588—Heterocyclic compounds
    • 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
    • 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
    • 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
    • C09K19/20—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers
    • C09K19/2007—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers the chain containing -COO- or -OCO- groups
    • C09K2019/2078—Ph-COO-Ph-COO-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
    • G02F1/13793—Blue phases

Definitions

  • the present disclosure relates to a blue phase liquid crystal composite material and a liquid crystal display comprising the same. Background technique
  • Liquid crystalline blue phases (BPs) ⁇ ⁇ is a special state between the isotropic liquid crystal and the cholesteric liquid crystal, which is often found in high chiral liquid crystal systems.
  • the blue phase is a lattice defect phase with no birefringence, and its lattice parameter size is equivalent to the order of visible wavelength (several hundred nanometers).
  • the blue phase can be divided into three sub-phases from the crystal structure, named blue phase I (BPI), blue phase ⁇ ( ⁇ ) and blue phase ⁇ ( ⁇ ), respectively.
  • BPI blue phase I
  • ⁇ blue phase ⁇
  • ⁇ blue phase ⁇
  • the corresponding lattice structure is body-centered cubic structure, Single-cube structure and amorphous state.
  • the blue phase liquid crystal has a Kirkel effect, has a microsecond-order electric field response speed, and has a wide viewing angle of the blue-phase liquid crystal display, does not require a liquid crystal alignment layer, and has a low driving voltage (only TFT liquid crystal) 1/3 of the display, etc., is considered to be the most promising next-generation fast photoelectric response liquid crystal display material.
  • the operating voltage of the Kerr-based liquid crystal display is still high (> 50 Vrms, where rms represents the rms value and Vrms represents the effective value of the AC voltage), so that It is effectively applied to a conventional amorphous thin film transistor.
  • the Kerr constant K is proportional to the following formula:
  • Ai 3 ⁇ 4cerf represents the electric field induced birefringence
  • ⁇ is the incident light wavelength
  • ⁇ is the applied electric field
  • ⁇ « is the birefringence of the liquid crystal
  • ⁇ is the anisotropic dielectric constant
  • the elastic constant is the elastic constant
  • the corpse is liquid crystal.
  • Pitch ⁇ is the pi.
  • the synthesis of a liquid crystal material having a large dielectric constant and a large birefringence is the key to increasing the Kerr coefficient of the blue phase liquid crystal.
  • the present disclosure aims to solve the problem that the Kerr coefficient of the blue phase liquid crystal composite material obtained by the prior art method is small, and to provide a blue phase liquid crystal composite material having a large Kerr coefficient. Summary of the invention
  • the present disclosure provides a blue phase liquid crystal composite material formed by photopolymerization of a raw material component, including: a mother blue phase liquid crystal, a benzene type substance, a chiral compound, and a light Polymerization monomer, photoinitiator.
  • the weight percentage of the raw material component can be:
  • Phenylenes 5.0wt% - 30.0wt%
  • Photopolymerizable monomer 5.0 wt% - 30.0 wt%;
  • Photoinitiator 0.1 wt% - 2.0 wt%.
  • R 2 is Hydrogen or fluorine
  • R 3 is hydrogen or fluorine
  • n is any integer between 1 and 20.
  • the structural formula is any of the following structural formulas
  • X, Y are independently selected from a hydrogen atom or a fluorine atom.
  • the chiral compound is an isosorbide compound or a mannitol chiral compound.
  • the structural formula of the isosorbide compound or the mannitol chiral compound is any one of the following structural formulas:
  • R is an alkyl group, and the alkyl group has 1 to 10 carbon atoms.
  • the photopolymerizable monomer is any one or more of 12HMA, TMPTMA, C6M, C3M, wherein the structural formula of 12HMA, TMPTMA, C6M, C3M is as follows:
  • the photoinitiator is a UV initiator benzil bisphenol, and its structural formula is as follows:
  • FIG. 1 is a blue phase texture of a blue phase liquid crystal composite material under different temperature polarizations according to Embodiment 1 of the present invention
  • FIG. 2 is a voltage transmittance curve of a blue phase liquid crystal composite material according to a comparative example of the present invention
  • 3 is a voltage transmittance curve of a blue phase liquid crystal composite material according to Embodiment 1 of the present invention
  • FIG. 4 is a voltage transmittance curve of a blue phase liquid crystal composite material according to Embodiment 2 of the present invention
  • FIG. 6 is a voltage transmittance curve of a blue phase liquid crystal composite material according to Embodiment 9 of the present invention
  • FIG. 7 is a blue phase liquid crystal composite material according to Embodiment 9 of the present invention. Birefringence and voltage squared curve. detailed description
  • the present disclosure provides a blue phase liquid crystal composite material which is formed by photopolymerization of a raw material component including: a mother blue phase liquid crystal, a benzene type substance, a chiral compound, and a light Polymerization monomer, photoinitiator.
  • the weight percentage of the raw material components is:
  • Phenylenes 5.0wt% - 30.0wt%
  • Photopolymerizable monomer 5.0 wt% - 30.0 wt%;
  • Photoinitiator 0. lwt% - 2.0 wt%.
  • the above raw material components may be uniformly mixed in a corresponding ratio, and irradiated with light of a corresponding wavelength of a photoinitiator for a certain time at a certain temperature (for example, room temperature) to initiate polymerization of the photopolymerizable monomer, and preparation
  • a certain temperature for example, room temperature
  • the blue phase liquid crystal composite material was obtained.
  • Those skilled in the art can readily determine the wavelength range and irradiation time depending on the photoinitiator employed.
  • the driving voltage of the polymer dispersed blue phase liquid crystal mainly depends on the Kerr constant K of the material. Increasing the K value is beneficial to lower the driving voltage of the polymer dispersed blue phase liquid crystal; increasing the birefringence of the material is beneficial to increase the K value.
  • a blue phase liquid crystal composite material having a large Kerr coefficient and a low voltage can be obtained after polymerization.
  • the saturation voltage of the blue phase liquid crystal composite can be reduced to at least 34V, and the Kerr coefficient is on the order of 10 - 1G mV 2 , which is about 100 times larger than that of ordinary blue phase liquid crystal.
  • the blue phase liquid crystal composite material provided by the present disclosure thus has electricity Low pressure, high contrast, fast response to electric field, good stability and so on.
  • the present disclosure also provides a liquid crystal display with low driving voltage and fast electric field response speed, thereby solving the high driving voltage and electric field of the liquid crystal display produced by the prior art method.
  • the problem of slow response can be: any product or component having a display function such as a liquid crystal panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • Example 1 The following examples are provided to illustrate the preparation of the blue phase liquid crystal composite, which is merely illustrative and does not limit the scope of the invention.
  • Example 1 The following examples are provided to illustrate the preparation of the blue phase liquid crystal composite, which is merely illustrative and does not limit the scope of the invention.
  • the present embodiment provides a blue phase liquid crystal composite material which is formed by photopolymerization of a raw material component including: a mother blue phase liquid crystal, a benzene type substance, a chiral compound, and a light Polymerizable monomer, photoinitiator.
  • phenyne type has the following structural formula
  • ⁇ is 2; R 2 is hydrogen; R 3 is hydrogen; and R 4 is a cyano group.
  • the photopolymerizable monomer is: 12HMA, and its structure is as follows: ⁇ 3 ⁇ 4.
  • Hun C ⁇ i - QO ⁇ d
  • Light I hair is benzil bismuth ether (trade name 651, available from Adamas Reagent, Ltd.). The weight percentage of the above raw material components is shown in Table 1.
  • the above raw material components were mixed in a weight percentage shown in Table 1, poured into a liquid crystal cell, and irradiated with ultraviolet light of 10 mW/cm 2 for 20 minutes at room temperature to form a blue phase liquid crystal composite material.
  • the blue phase liquid crystal composite material can reach room temperature in the temperature range after polymerization by a polarizing microscope.
  • the ⁇ , ⁇ , and saturation voltage tests were performed on the blue phase liquid crystal composite material obtained, and the results are shown in Table 1.
  • the present embodiment provides a blue phase liquid crystal composite material which is formed by photopolymerization of a raw material component including: a mother blue phase liquid crystal, a benzene type substance, a chiral compound, and a light Polymerizable monomer, photoinitiator.
  • ⁇ is 4; R 2 is fluorine; R 3 is hydrogen; and R 4 is a cyano group.
  • the structural formula of the chiral compound is shown in the figure below. Wherein R is a propyl group.
  • the photopolymerizable monomer is: C6M, and its structural formula is as follows
  • the photoinitiator was benzil bis- oxime (trade name 651, available from Adamas Reagent, Ltd.). The weight percentage of the above raw material components is shown in Table 1.
  • the above raw material components were mixed in a weight percentage shown in Table 1, poured into a liquid crystal cell, and irradiated with ultraviolet light of 10 mW/cm 2 for 20 minutes at room temperature to form a blue phase liquid crystal composite material.
  • the blue phase liquid crystal composite material can reach room temperature in the temperature range after polymerization by a polarizing microscope.
  • the ⁇ , ⁇ , and saturation voltage tests were performed on the blue phase liquid crystal composite material obtained, and the results are shown in Table 1.
  • the present embodiment provides a blue phase liquid crystal composite material which is formed by photopolymerization of a raw material component including: a mother blue phase liquid crystal, a benzene type substance, a chiral compound, and a light Polymerizable monomer, photoinitiator.
  • the mother blue phase liquid crystal has a viscosity of less than 50 mPa, a melting point of less than -40 ° C, and a clearing point of 30 to 200 ° C.
  • R is a fluorenyl group.
  • the photoinitiator is benzil bismuth ether (trade name 651, available from Adamas Reagent, Ltd) .).
  • the weight percentage of the above raw material components is shown in Table 1.
  • the above raw material components were mixed in a weight percentage shown in Table 1, poured into a liquid crystal cell, and irradiated with ultraviolet light of 10 mW/cm 2 for 20 minutes at room temperature to form a blue phase liquid crystal composite material.
  • the blue phase liquid crystal composite material can reach room temperature in the temperature range after polymerization by a polarizing microscope.
  • the ⁇ , ⁇ , and saturation voltage tests were performed on the blue phase liquid crystal composite material obtained, and the results are shown in Table 1.
  • the present embodiment provides a blue phase liquid crystal composite material which is formed by photopolymerization of a raw material component including: a mother blue phase liquid crystal, a benzene type substance, a chiral compound, and a light Polymerizable monomer, photoinitiator.
  • R is a n-hexyl group.
  • the photopolymerizable monomer is: C6M, and its structural formula is as shown in the figure below.
  • the photo-I agent was benzil bis- oxime (trade name 651, available from Adamas Reagent, Ltd.).
  • the weight percentage of the above raw material components is shown in Table 1.
  • the above raw material components were mixed in a weight percentage shown in Table 1, poured into a liquid crystal cell, and irradiated with ultraviolet light of 10 mW/cm 2 for 20 minutes at room temperature to form a blue phase liquid crystal composite material.
  • the blue phase liquid crystal composite material can reach room temperature in the temperature range after polymerization by a polarizing microscope.
  • the ⁇ , ⁇ , and saturation voltage tests were performed on the blue phase liquid crystal composite material obtained, and the results are shown in Table 1.
  • the present embodiment provides a blue phase liquid crystal composite material which is formed by photopolymerization of a raw material component including: a mother blue phase liquid crystal, a benzene type substance, a chiral compound, and a light Polymerizable monomer, photoinitiator.
  • X is a hydrogen atom and ⁇ is a fluorine atom.
  • R is a fluorenyl group.
  • the above raw material components were mixed in a weight percentage shown in Table 1, poured into a liquid crystal cell, and irradiated with ultraviolet light of 10 mW/cm 2 for 20 minutes at room temperature to form a blue phase liquid crystal composite material.
  • the blue phase liquid crystal composite material can reach room temperature in the temperature range after polymerization by a polarizing microscope.
  • the ⁇ , ⁇ , and saturation voltage tests were performed on the blue phase liquid crystal composite material obtained, and the results are shown in Table 1.
  • the embodiment provides a blue phase liquid crystal composite material, which is composed of a raw material group Formed by photopolymerization, the raw material components include: a mother blue phase liquid crystal, a benzene type substance, a chiral compound, a photopolymerizable monomer, and a photoinitiator.
  • R is a n-heptyl group.
  • the photopolymerizable monomer is: TMPTMA, and its structural formula is as shown in the figure below.
  • the light hair agent was benzil bismuth ether (trade name 651, available from Adamas Reagent, Ltd.).
  • the weight percentage of the above raw material components is shown in Table 1.
  • the above raw material components were mixed in a weight percentage shown in Table 1, poured into a liquid crystal cell, and irradiated with ultraviolet light of 10 mW/cm 2 for 20 minutes at room temperature to form a blue phase liquid crystal composite material.
  • the blue phase liquid crystal composite material can reach room temperature in the temperature range after polymerization by a polarizing microscope. Blue phase liquid crystal
  • the composite material was subjected to ⁇ ⁇ and saturation voltage tests, and the results are shown in Table 1.
  • the present embodiment provides a blue phase liquid crystal composite material which is formed by photopolymerization of a raw material component including: a mother blue phase liquid crystal, a benzene type substance, a chiral compound, and a light Polymerizable monomer, photoinitiator.
  • ⁇ 3 where: the structural formula is shown below, Wherein, the value of ⁇ is 18; R 2 is hydrogen; and R 3 is hydrogen; the structural formula is as shown in the following figure, , wherein X and ⁇ are all fluorine atoms.
  • the parent blue phase liquid crystal is SLC-X (available from Yongsheng Huatsing Liquid Crystal Co., Ltd,
  • the main components thereof include a biphenyl nitrile liquid crystal (a biphenyl alkyl nitrile liquid crystal or a biphenyl alkoxy nitrile liquid crystal) and a fluorine-containing small molecule liquid crystal; the viscosity of the mother blue phase liquid crystal is smaller than 50mPa, melting point below -40 °C, clearing point at 30 ⁇ 200 °C
  • R is a fluorenyl group.
  • the photopolymerizable monomer is: C3M, and its structural formula is as shown in the figure below. 6.
  • w , cH °", i, ', photoinitiator is benzil dimethyl ether (trade name 651, available from Adamas Reagent, Ltd.)
  • the weight percentage of the above raw material components is shown in Table 1.
  • the above raw material components were mixed in a weight percentage shown in Table 1, poured into a liquid crystal cell, and irradiated with ultraviolet light of 10 mW/cm 2 for 20 minutes at room temperature to form a blue phase liquid crystal composite material.
  • the blue phase liquid crystal composite material can reach room temperature in the temperature range after polymerization by a polarizing microscope.
  • the ⁇ , ⁇ , and saturation voltage tests were performed on the blue phase liquid crystal composite material obtained, and the results are shown in Table 1.
  • the present embodiment provides a blue phase liquid crystal composite material which is formed by photopolymerization of a raw material component including: a mother blue phase liquid crystal, a benzene type substance, a chiral compound, and a light Polymerizable monomer, photoinitiator.
  • the structure is as shown below.
  • R is a propyl group.
  • the photopolymerizable monomer is: TMPTMA, and its structural formula is as shown in the figure below.
  • 3 ⁇ 4 ⁇ 'Human I photoinitiator is benzil bismuth ether (trade name 651, available from Adamas Reagent, Ltd.).
  • the weight percentage of the above raw material components is shown in Table 1.
  • the above raw material components were mixed in a weight percentage shown in Table 1, poured into a liquid crystal cell, and irradiated with ultraviolet light of 10 mW/cm 2 for 20 minutes at room temperature to form a blue phase liquid crystal composite material.
  • the blue phase liquid crystal composite material can reach room temperature in the temperature range after polymerization by a polarizing microscope.
  • the ⁇ , ⁇ , and saturation voltage tests were performed on the blue phase liquid crystal composite material obtained, and the results are shown in Table 1.
  • the present embodiment provides a blue phase liquid crystal composite material which is formed by photopolymerization of a raw material component including: a mother blue phase liquid crystal, a benzene type substance, a chiral compound, and a light Polymerizable monomer, photoinitiator.
  • n 5; R 2 is fluorine; R 3 is fluorine; and R 4 is thiocyano.
  • R is n-butyl
  • the photopolymerizable monomer is: C6M, and its structural formula is as shown in the figure below.
  • the photoinitiator was benzil bismuth ether (trade name 651, available from Adamas Reagent, Ltd.).
  • the weight percentage of the above raw material components is shown in Table 1.
  • the above raw material components were mixed in a weight percentage shown in Table 1, poured into a liquid crystal cell, and irradiated with ultraviolet light of 10 mW/cm 2 for 20 minutes at room temperature to form a blue phase liquid crystal composite material.
  • the blue phase liquid crystal composite material can reach room temperature in the temperature range after polymerization by a polarizing microscope.
  • the ⁇ , ⁇ , and saturation voltage tests were performed on the blue phase liquid crystal composite material obtained, and the results are shown in Table 1.
  • the present embodiment provides a blue phase liquid crystal composite material which is formed by photopolymerization of a raw material component including: a mother blue phase liquid crystal, a benzene type substance, a chiral compound, and a light Polymerizable monomer, photoinitiator.
  • R structural formula is shown below, Wherein the value of n is 14; R 2 is hydrogen; and R 3 is hydrogen;
  • the structure is as shown below.
  • Nitrile liquid crystal biphenyl alkyl nitrile liquid crystal or biphenyl alkoxy nitrile liquid crystal
  • the mother blue phase liquid crystal has a viscosity of less than 50 mPa, a melting point of less than -40 ° C, and a clearing point of 30 to 200 ° C .
  • R is an ethyl group.
  • the photopolymerizable monomer is: TMPTMA, and its structural formula is as shown in the figure below, ⁇ 0 , ⁇
  • the TMPTMA 3 ⁇ 4 photoinitiator is benzil bismuth ether (trade name 651, available from Adamas Reagent, Ltd.).
  • the weight percentage of the above raw material components is shown in Table 1.
  • the above raw material components were mixed in a weight percentage shown in Table 1, poured into a liquid crystal cell, and irradiated with ultraviolet light of 10 mW/cm 2 for 20 minutes at room temperature to form a blue phase liquid crystal composite material.
  • the blue phase liquid crystal composite material can reach room temperature in the temperature range after polymerization by a polarizing microscope.
  • the ⁇ , ⁇ , and saturation voltage tests were performed on the blue phase liquid crystal composite material obtained, and the results are shown in Table 1.
  • the present embodiment provides a blue phase liquid crystal composite material which is formed by photopolymerization of a raw material component including: a mother blue phase liquid crystal, a benzene type substance, a chiral compound, and a light Polymerizable monomer, photoinitiator.
  • R is a thiol group.
  • the photopolymerizable monomer is: C6M, and its structural formula is as shown in the figure below.
  • Cm The photopolymerizable monomer is: C6M, and its structural formula is as shown in the figure below.
  • ⁇ ⁇ photoinitiator is benzil dimethyl ether (trade name 651, available from Adamas Reagent, Ltd.).
  • the weight percentage of the above raw material components is shown in Table 1.
  • the above raw material components were mixed in a weight percentage shown in Table 1 and poured into a liquid crystal cell, and after 10 minutes at room temperature with ultraviolet rays of 10 mW/cm 2 , a blue phase liquid crystal composite material was formed.
  • the blue phase liquid crystal composite material can reach room temperature in the temperature range after polymerization by a polarizing microscope.
  • the ⁇ , ⁇ , and saturation voltage tests were performed on the blue phase liquid crystal composite material obtained, and the results are shown in Table 1.
  • the present embodiment provides a blue phase liquid crystal composite material which is formed by photopolymerization of a raw material component including: a mother blue phase liquid crystal, a benzene type substance, a chiral compound, and a light Polymerizable monomer, photoinitiator.
  • the structure is as shown below.
  • R is a thiol group.
  • the photopolymerizable monomer is: TMPTMA, and its structural formula is as shown in the following figure : 4...
  • the photoinitiator is benzil bismuth ether (trade name: 651, available from Adamas Reagent, Ltd.).
  • the weight percentage of the above raw material components is shown in Table 1.
  • the raw material components were irradiated with ultraviolet light of 10 mW/cm 2 for 20 minutes at room temperature in a liquid crystal cell to form a blue phase liquid crystal composite material.
  • the blue phase liquid crystal composite material can reach room temperature in the temperature range after polymerization by a polarizing microscope.
  • the ⁇ , ⁇ , and saturation voltage tests were performed on the blue phase liquid crystal composite material obtained, and the results are shown in Table 1. Comparative example
  • the present comparative example provides a blue phase liquid crystal composite material which is formed by photopolymerization of a raw material component which is different from the raw material component of Example 1 in that no phenylene group is added. And increase the parent weight blue phase liquid crystal with the same weight fraction as the phenylene group as an alternative.
  • the other components and weight fractions of the blue phase liquid crystal composite were the same as those used in Example 1.
  • the ⁇ , ⁇ and saturation voltage tests were carried out on the obtained blue phase liquid crystal composite material, and the results are shown in Table 1. testing method:
  • Electro-optic hysteresis characteristics of blue phase liquid crystal composites The electro-optic hysteresis characteristic of a blue phase liquid crystal is generally defined as ⁇ . ⁇ , where, . ⁇ is the voltage value corresponding to the maximum transmittance, and ⁇ is the difference between the voltage forward acting and the reverse acting voltage when the transmittance is half of the highest transmittance. ⁇ / .
  • the smaller the ⁇ value the smaller the electro-optic hysteresis, and conversely, the electro-optic hysteresis is severe.
  • Figure 2-5 shows the electro-optical performance test chart of the blue-phase liquid crystal composite material. From the figure, it can be concluded that the saturation voltage (the voltage at the maximum transmittance) is 70V, 39V, 36V, 34V, respectively. An effective reduction has been achieved.
  • the present invention provides an electro-optical performance test of the blue phase liquid crystal composite material described in Example 9 (see Fig. 6). It can be seen that the saturation voltage (voltage at the maximum transmittance) is 39V.
  • the electro-optic curve measured for the blue phase liquid crystal composite material described in each of the examples has a Kerr constant of the order of 10 - 1 G mV 2 , which is about 100 times larger than the general blue phase liquid crystal Kerr coefficient.
  • the embodiment provides a liquid crystal display comprising the above-described blue phase liquid crystal composite material.
  • the liquid crystal display can be: a liquid crystal panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like, or any display product or component.

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)
  • Liquid Crystal (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

一种蓝相液晶复合材料和含该材料的液晶显示器，其可解决现有的蓝相液晶和含该材料的液晶显示器的克尔系数小的问题。本公开的蓝相液晶复合材料是由原料组分经光聚合形成，所述原料组分的成分包括：母体蓝相液晶、苯炔类物质、手性化合物、光可聚合单体、光引发剂。本公开的蓝相液晶复合材料的克尔系数大、电压低、对比度高、对电场响应速度快、稳定性好等优点。

Description

蓝相液晶复合材料和含该材料的液晶显示器 技术领域
本公开涉及一种蓝相液晶复合材料和含该材料的液晶显示器。 背景技术
蓝相液晶 (Liquid crystalline Blue Phases , BPs)^ ^观上介于各向同性态液 晶和胆甾相液晶之间的一种特 ^目态， 常出现在高手性液晶体系之中。 微观 上， 蓝相是一种无双折射现象的晶格缺陷相， 其晶格参数大小与可见光波长 的数量级相当（几百纳米）。蓝相从晶体结构上可以分为三个子相， 分别命名 为蓝相 I ( BPI)、 蓝相 Π(ΒΡΠ)和蓝相 ΠΙ(ΒΡΠΙ) , 其相应的晶格结构分别为体 心立方结构、 筒单立方结构和无定型态。
相比传统液晶的电光响应方式， 蓝相液晶由于产生克尔克尔效应， 具有 微秒级的电场响应速度、 且蓝相液晶显示器视角广、 无需液晶取向层、 驱动 电压低（仅为 TFT液晶显示器的 1/3 )等， 被认为是最具发展前途的下一代 快速光电响应液晶显示材料。
由于纳米液晶合成物的克尔常数非常小， 这种基于克尔效应的液晶显示 器的工作电压仍偏高 （ > 50Vrms, 其中 rms表示均方根值， Vrms表示交流 电压的有效值 ), 从而不能有效地应用于常规的非晶薄膜晶体管。
克尔常数 K正比于下述公式：
ΛΕ2 π)2
上式中， Ai ¾cerf表示电场诱导双折射率， λ为入射光波长， Ε为外加电 场， Δ«为液晶的双折射率， Δε为各向异性介电常数， 为弹性常数， 尸为液 晶的螺距， π为圓周率。
可以看出， 增大材料的双折射率和介电常数有利于增加 Κ值。 因此， 合 成具有大介电常数、 大双折射率的液晶材料成为提高蓝相液晶的克尔系数的 关键。 本公开旨在解决现有技术方法制得的蓝相液晶复合材料的克尔系数小 的问题， 提供一种克尔系数大的蓝相液晶复合材料。 发明内容
本公开提供一种蓝相液晶复合材料， 所述蓝相液晶复合材料由原料组分 经光聚合形成， 所述原料组分包括： 母体蓝相液晶、 苯炔类物质、 手性化合 物、 光可聚合单体、 光引发剂。
例如， 所述原料组分的重量百分含量可为：
母体蓝相液晶： 55.0wt%-84.9wt%；
苯炔类物质： 5.0wt%-30.0wt%；
手性化合物： 5.0wt%-30.0wt%；
光可聚合单体： 5.0wt%-30.0wt%;
光引发剂： 0.1wt%-2.0wt%。
所述苯炔类物质的结构式如下：
Figure imgf000004_0001
其中， 为烷基苯、 烷氧基苯、 烷基联苯、 烷氧基联苯、 烷基苯乙炔、 烷氧苯乙炔、 烷基萘、 烷氧基蔡中的任意一种； R2为氢或氟； R3为氢或氟； 为 tt、 硫 tt、 三氟曱基、 对苯曱腈基、 对^ tt、 对苯三氟曱基中 的任意一种。
所述 的结构式为如下结构式
Figure imgf000005_0001
其中， n为 1-20之间任一整数。
所述 的结构式为如下结构式中的任意
N CF-
Figure imgf000005_0002
其中， X, Y独立地选自氢原子或氟原子。
例如， 所述手性化合物为异山梨醇类化合物或甘露醇类手性化合物。 所述异山梨醇类化合物或甘露醇类手性化合物的结构式为如下结构式中 的任意一种：
Figure imgf000006_0001
其中， R为烷基， 所述烷基的碳原子数为 1 ~ 10。
例如， 所述光可聚合单体为 12HMA、 TMPTMA、 C6M、 C3M中的任意 一种或几种， 其中 12HMA、 TMPTMA、 C6M、 C3M的结构式如下：
CH,
=C-COO—— C12H2:
Figure imgf000006_0002
例如， 所述光引发剂为紫外引发剂苯偶酰双曱醚， 其结构式如下:
Figure imgf000006_0003
还提供一种液晶显示器， 其包括如上所述的蓝相液晶复合材料。 附图说明
图 1为本发明实施例 1的蓝相液晶复合材料不同温度偏光下的蓝相织构; 图 2 为本发明对比例的蓝相液晶复合材料的电压透过率曲线； 图 3 为本发明实施例 1的蓝相液晶复合材料的电压透过率曲线； 图 4为本发明实施例 2的蓝相液晶复合材料的电压透过率曲线； 图 5为本发明实施例 3的蓝相液晶复合材料的电压透过率曲线； 图 6为本发明实施例 9的蓝相液晶复合材料的电压透过率曲线； 图 7为本发明实施例 9的蓝相液晶复合材料的诱导双折射与电压平方变 化曲线。 具体实施方式
为使本领域技术人员更好地理解本发明的技术方案， 下面结合附图和具 体实施方式对本发明作进一步详细描述。
本公开提供一种蓝相液晶复合材料， 该蓝相液晶复合材料是由原料组分 经光聚合形成， 所述原料组分包括： 母体蓝相液晶、 苯炔类物质、 手性化合 物、 光可聚合单体、 光引发剂。
其中， 原料组分的重量百分含量为：
母体蓝相液晶： 55.0wt%-84.9wt%；
苯炔类物质： 5.0wt%-30.0wt%；
手性化合物： 5.0wt%-30.0wt%；
光可聚合单体： 5.0wt%-30.0wt%；
光引发剂： 0. lwt%-2.0wt%。
例如， 可将上述原料组分按相应比例混合均匀， 在一定温度（例如， 室 温下）下， 通过光引发剂对应波长的光进行辐照一定时间， 引发光可聚合单 体发生聚合反应， 制备得到所述蓝相液晶复合材料。 本领域技术人员可根据 所采用的光引发剂容易地确定波长范围和辐照时间。
聚合物分散蓝相液晶的驱动电压高低主要取决于材料的克尔常数 K, 增 大 K值有利于降低聚合物分散蓝相液晶的驱动电压；增大材料的双折射率有 利于增加 K值。
通过向母体蓝相液晶中添加具有大介电常数（Αε )和大双折射率（Δη ) 的苯炔类分子， 聚合后可得到具有大克尔系数低电压的蓝相液晶复合材料。 蓝相液晶复合材料的饱和电压最低可降至 34V,克尔系数的量级为 10-1GmV2, 比普通蓝相液晶大约 100倍。 本公开所提供的蓝相液晶复合材料因此具有电 压低、 对比度高、 对电场响应速度快、 稳定性好等优点。
通过将上述蓝相液晶复合材料应用于液晶显示器中， 本公开还提供一种 驱动电压低和电场响应速度快的液晶显示器， 从而解决了现有技术方法制得 的液晶显示器的驱动电压高和电场响应速度慢的问题。 所述液晶显示器可以 为： 液晶面板、 手机、 平板电脑、 电视机、 显示器、 笔记本电脑、 数码相框、 导航仪等任何具有显示功能的产品或部件。
提供了下述实施例来阐述所述蓝相液晶复合材料的制备过程， 所述实施 例仅仅是描述性的， 并非限定本发明的范围。 实施例 1
本实施例提供一种蓝相液晶复合材料， 该蓝相液晶复合材料是由原料组 分经光聚合形成， 所述原料组分包括： 母体蓝相液晶、 苯炔类物质、 手性化 合物、 光可聚合单体、 光引发剂。
其中， 苯炔类物质种类为具有如下结构式的，
Figure imgf000008_0001
其中： 的结构式如
Figure imgf000008_0002
其中， η的值为 2; R2为氢； R3为氢； R4为氰基。
母体蓝相液晶为 SLC-X (得自 Yongsheng Huatsing Liquid Crystal Co., Ltd, Δη=0.253, Δε=29.6, 298K), 其主要组分包括联苯腈液晶 （联苯烷基腈液晶或 联苯烷氧基腈液晶）和含氟小分子液晶； 母体蓝相液晶的粘度小于 50mPa, 熔点低于 -40 °C , 清亮点在 30 ~ 200 °C。
手性化合物的结构式如下图所示，
Figure imgf000008_0003
其中， R为曱基。
光可聚合单体为 ： 12HMA , 其结构 式如下 图 所示 ： α¾.
匿嫩 H^C=i:- QO ^ d 光 I发剂为苯偶酰双曱醚（商品名为 651 , 得自 Adamas Reagent, Ltd. )。 上述原料组分的重量百分含量见表 1。
将上述原料组分按表 1所示的重量百分含量混合后灌入液晶盒内， 在室 温下用 10mW/cm2的紫外光照射 20分钟后，形成蓝相液晶复合材料。用偏光 显微镜观察聚合后该蓝相液晶复合材料温域均能达到室温。 对制得蓝相液晶 复合材料进行 Δη、 Δε和饱和电压测试， 其结果见表 1。 实施例 2
本实施例提供一种蓝相液晶复合材料， 该蓝相液晶复合材料是由原料组 分经光聚合形成， 所述原料组分包括： 母体蓝相液晶、 苯炔类物质、 手性化 合物、 光可聚合单体、 光引发剂。
其中， 苯炔类物质的结构式如下图所示，
Figure imgf000009_0001
其中： 结构式如下
Figure imgf000009_0002
其中， η的值为 4; R2为氟； R3为氢； R4为氰基。
母体蓝相液晶为 SLC-X (得自 Yongsheng Huatsing Liquid Crystal Co., Ltd, Δη=0.253, Δε=29.6, 298K), 其主要组分包括联苯腈液晶 （联苯烷基腈液晶或 联苯烷氧基腈液晶）和含氟小分子液晶； 母体蓝相液晶的粘度小于 50mPa, 熔点低于 -40 °C , 清亮点在 30 ~ 200 °C。 手性化合物的结构式如下图所示 ,
Figure imgf000010_0001
其中， R为丙基。
光可聚合单体为： C6M, 其结构式如下图
〜 Q ^ , ·--、、
-o、- 、
ό rv- V ,.-Q
Q
' ...、..o.丄 : 光引发剂为苯偶酰双曱醚（商品名为 651 ,得自 Adamas Reagent, Ltd. )。 上述原料组分的重量百分含量见表 1。
将上述原料组分按表 1所示的重量百分含量混合后灌入液晶盒内， 在室 温下用 10mW/cm2的紫外光照射 20分钟后，形成蓝相液晶复合材料。用偏光 显微镜观察聚合后该蓝相液晶复合材料温域均能达到室温。 对制得蓝相液晶 复合材料进行 Δη、 Δε和饱和电压测试， 其结果见表 1。 实施例 3
本实施例提供一种蓝相液晶复合材料， 该蓝相液晶复合材料是由原料组 分经光聚合形成， 所述原料组分包括： 母体蓝相液晶、 苯炔类物质、 手性化 合物、 光可聚合单体、 光引发剂。
其中， 苯炔类物质的结构式如下图所示，
Figure imgf000010_0002
其中：
Figure imgf000010_0003
其中， n的值为 12; R2为氟； R3为氟； 为氣基。
母体蓝相液晶为 SLC-X (得自 Yongsheng Huatsing Liquid Crystal Co., Ltd, Δη=0.253, Δε=29.6, 298K), 其主要组分包括联苯腈液晶 （联苯烷基腈液晶或 联苯烷氧基腈液晶）和含氟小分子液晶； 母体蓝相液晶的粘度小于 50mPa, 熔点低于 -40 °C , 清亮点在 30 ~ 200 °C。
手性化合物的结构式如下图所示，
Figure imgf000011_0001
其中， R为正癸基。
光可聚合单体为： 12HMA, 其结构式如下图： 1誦 ίΑ H2G= - COO ~ C,.¾ 光引发剂为苯偶酰双曱醚（商品名为 651 , 得自 Adamas Reagent, Ltd. )。 上述原料组分的重量百分含量见表 1。
将上述原料组分按表 1所示的重量百分含量混合后灌入液晶盒内， 在室 温下用 10mW/cm2的紫外光照射 20分钟后，形成蓝相液晶复合材料。用偏光 显微镜观察聚合后该蓝相液晶复合材料温域均能达到室温。 对制得蓝相液晶 复合材料进行 Δη、 Δε和饱和电压测试， 其结果见表 1。 实施例 4
本实施例提供一种蓝相液晶复合材料， 该蓝相液晶复合材料是由原料组 分经光聚合形成， 所述原料组分包括： 母体蓝相液晶、 苯炔类物质、 手性化 合物、 光可聚合单体、 光引发剂。
其中， 苯炔类物质的结构式如下图所示，
Figure imgf000011_0002
其中： 的结构如下图所示,
， 其中， n的值为 16; R2为氟； R3为氟; R4为硫氰基。
母体蓝相液晶为 SLC-X (得自 Yongsheng Huatsing Liquid Crystal Co., Ltd, Δη=0.253, Δε=29.6, 298K), 其主要组分包括联苯腈液晶 （联苯烷基腈液晶或 联苯烷氧基腈液晶）和含氟小分子液晶； 母体蓝相液晶的粘度小于 50mPa, 熔点低于 -40 °C , 清亮点在 30 ~ 200 °C。
性化合物的结构式如下图所示，
Figure imgf000012_0001
其中， R为正己基。
光可聚合单体为： C6M, 其结构式如下图所示,
Figure imgf000012_0002
光 I发剂为苯偶酰双曱醚（商品名为 651 , 得自 Adamas Reagent, Ltd. )。 上述原料组分的重量百分含量见表 1。
将上述原料组分按表 1所示的重量百分含量混合后灌入液晶盒内， 在室 温下用 10mW/cm2的紫外光照射 20分钟后，形成蓝相液晶复合材料。用偏光 显微镜观察聚合后该蓝相液晶复合材料温域均能达到室温。 对制得蓝相液晶 复合材料进行 Δη、 Δε和饱和电压测试， 其结果见表 1。 实施例 5
本实施例提供一种蓝相液晶复合材料， 该蓝相液晶复合材料是由原料组 分经光聚合形成， 所述原料组分包括： 母体蓝相液晶、 苯炔类物质、 手性化 合物、 光可聚合单体、 光引发剂。
其中， 苯炔类物质的结构式如下图所示，
Figure imgf000012_0003
其中： 的结构式如下图所示,
Figure imgf000013_0001
, 其中， n的值为 8; R2为氢； R3为氢; 的结构式如下图所示，
Figure imgf000013_0002
, 其中， X为氢原子， γ为氟原子。 母体蓝相液晶为 SLC-X (得自 Yongsheng Huatsing Liquid Crystal Co., Ltd, Δη=0.253, Δε=29.6, 298K), 其主要组分包括联苯腈液晶 （联苯烷基腈液晶或 联苯烷氧基腈液晶）和含氟小分子液晶； 母体蓝相液晶的粘度小于 50mPa, 熔点低于 -40 °C , 清亮点在 30 ~ 200 °C。
手性化合物的结构式如下图所示，
Figure imgf000013_0003
其中， R为正癸基。
光可聚合单体为： 12HMA, 其结构式如下图所示， 画纖■ H2C=t-COO ^ CI2H2;j 光引发剂为苯偶酰双曱醚（商品名为 651 , 得自 Adamas Reagent, Ltd. )。 上述原料组分的重量百分含量见表 1。
将上述原料组分按表 1所示的重量百分含量混合后灌入液晶盒内， 在室 温下用 10mW/cm2的紫外光照射 20分钟后，形成蓝相液晶复合材料。用偏光 显微镜观察聚合后该蓝相液晶复合材料温域均能达到室温。 对制得蓝相液晶 复合材料进行 Δη、 Δε和饱和电压测试， 其结果见表 1。 实施例 6
本实施例提供一种蓝相液晶复合材料， 该蓝相液晶复合材料是由原料组 分经光聚合形成， 所述原料组分包括： 母体蓝相液晶、 苯炔类物质、 手性化 合物、 光可聚合单体、 光引发剂。
其中， 苯炔类物质的结构式如下图所示，
Figure imgf000014_0001
Figure imgf000014_0002
其中， n的值为 20; R2为氟； R3为氟； 为三氟曱基。
母体蓝相液晶为 SLC-X (得自 Yongsheng Huatsing Liquid Crystal Co., Ltd, Δη=0.253, Δε=29.6, 298K), 其主要组分包括联苯腈液晶 （联苯烷基腈液晶或 联苯烷氧基腈液晶）和含氟小分子液晶； 母体蓝相液晶的粘度小于 50mPa, 熔点低于 -40 °C , 清亮点在 30 ~ 200 °C。
手性化合物的结构式如下图所示，
Figure imgf000014_0003
其中， R为正庚基。
光可聚合单体为： TMPTMA, 其结构式如下图所示,
T PTMA
Figure imgf000014_0004
光 I发剂为苯偶酰双曱醚（商品名为 651 , 得自 Adamas Reagent, Ltd. )。 上述原料组分的重量百分含量见表 1。
将上述原料组分按表 1所示的重量百分含量混合后灌入液晶盒内， 在室 温下用 10mW/cm2的紫外光照射 20分钟后，形成蓝相液晶复合材料。用偏光 显微镜观察聚合后该蓝相液晶复合材料温域均能达到室温。 对制得蓝相液晶 复合材料进行 Δη Δε和饱和电压测试， 其结果见表 1 实施例 7
本实施例提供一种蓝相液晶复合材料， 该蓝相液晶复合材料是由原料组 分经光聚合形成， 所述原料组分包括： 母体蓝相液晶、 苯炔类物质、 手性化 合物、 光可聚合单体、 光引发剂。
其中， 苯炔类物质的结构式如下图所示，
Figure imgf000015_0001
κ3 其中： 的结构式如下图所示,
Figure imgf000015_0002
, 其中， η的值为 18; R2为氢； R3为氢； 的结构式如下图所示，
Figure imgf000015_0003
， 其中， X, Υ均为氟原子。
母体蓝相液晶为 SLC-X (得自 Yongsheng Huatsing Liquid Crystal Co., Ltd,
Δη=0.253, Δε=29.6, 298K), 其主要组分包括联苯腈液晶 （联苯烷基腈液晶或 联苯烷氧基腈液晶）和含氟小分子液晶； 母体蓝相液晶的粘度小于 50mPa, 熔点低于 -40 °C , 清亮点在 30 ~ 200 °C
手性化合物的结构式如下图所示，
Figure imgf000015_0004
其中， R为正壬基。
光可聚合单体为： C3M, 其结构式如下图所示， 6 . w、cH °"、 i 、' 、 光引发剂为苯偶酰双甲醚（商品名为 651 , 得自 Adamas Reagent, Ltd. )。 上述原料组分的重量百分含量见表 1。
将上述原料组分按表 1所示的重量百分含量混合后灌入液晶盒内， 在室 温下用 10mW/cm2的紫外光照射 20分钟后，形成蓝相液晶复合材料。用偏光 显微镜观察聚合后该蓝相液晶复合材料温域均能达到室温。 对制得蓝相液晶 复合材料进行 Δη、 Δε和饱和电压测试， 其结果见表 1。 实施例 8
本实施例提供一种蓝相液晶复合材料， 该蓝相液晶复合材料是由原料组 分经光聚合形成， 所述原料组分包括： 母体蓝相液晶、 苯炔类物质、 手性化 合物、 光可聚合单体、 光引发剂。
其中， 苯炔类物质的结构式如下图所示，
Figure imgf000016_0001
其中： 的结构式如下图所示,
Figure imgf000016_0002
其中， n的值为 15; R2为氟； R3为氟；
的结构式如下图所示，
X
『
Y , 其中， X为氟原子， Y为氢原子。 母体蓝相液晶为 SLC-X (得自 Yongsheng Huatsing Liquid Crystal Co., Ltd Δη=0.253, Δε=29.6, 298Κ), 其主要组分包括联苯腈液晶 （联苯烷基腈液晶或 联苯烷氧基腈液晶）和含氟小分子液晶； 母体蓝相液晶的粘度小于 50mPa, 熔点低于 -40 °C , 清亮点在 30 ~ 200 °C。
手性化合物的结构式如下图所示，
Figure imgf000017_0001
其中， R为丙基。
光可聚合单体为： TMPTMA, 其结构式如下图所示， 一
¾ Ή'人 I 光引发剂为苯偶酰双曱醚（商品名为 651 , 得自 Adamas Reagent, Ltd. )。 上述原料组分的重量百分含量见表 1。
将上述原料组分按表 1所示的重量百分含量混合后灌入液晶盒内， 在室 温下用 10mW/cm2的紫外光照射 20分钟后，形成蓝相液晶复合材料。用偏光 显微镜观察聚合后该蓝相液晶复合材料温域均能达到室温。 对制得蓝相液晶 复合材料进行 Δη、 Δε和饱和电压测试， 其结果见表 1。 实施例 9
本实施例提供一种蓝相液晶复合材料， 该蓝相液晶复合材料是由原料组 分经光聚合形成， 所述原料组分包括： 母体蓝相液晶、 苯炔类物质、 手性化 合物、 光可聚合单体、 光引发剂。
其中， 苯炔类物质的结构式如下图所示，
Figure imgf000017_0002
其中： 的结构式如下图所示,
Figure imgf000018_0001
其中， n的值为 5; R2为氟； R3为氟； R4为硫氰基。
Figure imgf000018_0002
其中， R为正丁基。
光可聚合单体为： C6M, 其结构式如下图所示，
Q
、 光引发剂为苯偶酰双曱醚（商品名为 651 , 得自 Adamas Reagent, Ltd. )。 上述原料组分的重量百分含量见表 1。
将上述原料组分按表 1所示的重量百分含量混合后灌入液晶盒内， 在室 温下用 10mW/cm2的紫外光照射 20分钟后，形成蓝相液晶复合材料。用偏光 显微镜观察聚合后该蓝相液晶复合材料温域均能达到室温。 对制得蓝相液晶 复合材料进行 Δη、 Δε和饱和电压测试， 其结果见表 1。 实施例 10
本实施例提供一种蓝相液晶复合材料， 该蓝相液晶复合材料是由原料组 分经光聚合形成， 所述原料组分包括： 母体蓝相液晶、 苯炔类物质、 手性化 合物、 光可聚合单体、 光引发剂。
其中， 苯炔类物质的结构式如下图所示，
Figure imgf000019_0001
其中： R 结构式如下图所示,
Figure imgf000019_0002
其中， n的值为 14; R2为氢； R3为氢;
的结构式如下图所示，
Figure imgf000019_0003
, 其中， X为氟原子， Y为氢原子 母体蓝相液晶为 SLC-X (得自 Yongsheng Huatsing Liquid Crystal Co., Ltd, Δη=0.253, Δε=29.6, 298K), 其主要组分包括联苯腈液晶 （联苯烷基腈液晶或 联苯烷氧基腈液晶）和含氟小分子液晶； 母体蓝相液晶的粘度小于 50mPa， 熔点低于 -40°C , 清亮点在 30 ~ 200°C。
手性化合物的结构式如下图所示，
Figure imgf000019_0004
其中， R为乙基。
光可聚合单体为： TMPTMA, 其结构式如下图所示， 丫0、 <
TMPTMA ¾ 光引发剂为苯偶酰双曱醚（商品名为 651 , 得自 Adamas Reagent, Ltd. )。 上述原料组分的重量百分含量见表 1。 将上述原料组分按表 1所示的重量百分含量混合后灌入液晶盒内， 在室 温下用 10mW/cm2的紫外光照射 20分钟后，形成蓝相液晶复合材料。用偏光 显微镜观察聚合后该蓝相液晶复合材料温域均能达到室温。 对制得蓝相液晶 复合材料进行 Δη、 Δε和饱和电压测试， 其结果见表 1。 实施例 11
本实施例提供一种蓝相液晶复合材料， 该蓝相液晶复合材料是由原料组 分经光聚合形成， 所述原料组分包括： 母体蓝相液晶、 苯炔类物质、 手性化 合物、 光可聚合单体、 光引发剂。
其中， 苯炔类物质的结构式如下图所示，
Figure imgf000020_0001
其中： 的结构式如下图所示,
Figure imgf000020_0002
其中， n的值为 1 ; R2为氟； R3为氟； R4为氟曱基。
母体蓝相液晶为 SLC-X (得自 Yongsheng Huatsing Liquid Crystal Co., Ltd, Δη=0.253, Δε=29.6, 298K), 其主要组分包括联苯腈液晶 （联苯烷基腈液晶或 联苯烷氧基腈液晶）和含氟小分子液晶； 母体蓝相液晶的粘度小于 50mPa, 熔点低于 -40 °C , 清亮点在 30 ~ 200 °C。
手性化合物的结构式如下图所示，
Figure imgf000020_0003
其中， R为曱基。
光可聚合单体为： C6M, 其结构式如下图所示， cm
、〜 δ 光引发剂为苯偶酰双甲醚（商品名为 651 , 得自 Adamas Reagent, Ltd. )。 上述原料组分的重量百分含量见表 1。
将上述原料组分按表 1所示的重量百分含量混合后灌入液晶盒内， 在室 温下用 10mW/cm2的紫外 20分钟后，形成蓝相液晶复合材料。用偏光 显微镜观察聚合后该蓝相液晶复合材料温域均能达到室温。 对制得蓝相液晶 复合材料进行 Δη、 Δε和饱和电压测试， 其结果见表 1。 实施例 12
本实施例提供一种蓝相液晶复合材料， 该蓝相液晶复合材料是由原料组 分经光聚合形成， 所述原料组分包括： 母体蓝相液晶、 苯炔类物质、 手性化 合物、 光可聚合单体、 光引发剂。
其中， 苯炔类物质的结构式如下图所示，
Figure imgf000021_0001
其中： 的结构式如下图所示,
\厂 、 / cnH 2. α÷! 其中， η的值为 3; R2为氢； R3为氢；
的结构式如下图所示，
X
γ 其中， X为氟原子， Υ为氢原子。 母体蓝相液晶为 SLC-X (得自 Yongsheng Huatsing Liquid Crystal Co., Ltd Δη=0.253, Δε=29.6, 298Κ), 其主要组分包括联苯腈液晶 （联苯烷基腈液晶或 联苯烷氧基腈液晶）和含氟小分子液晶； 母体蓝相液晶的粘度小于 50mPa, 熔点低于 -40 °C , 清亮点在 30 ~ 200 °C。
手性化合物的结构式如下图所示，
Figure imgf000022_0001
其中， R为曱基。
光可聚合单体为： TMPTMA, 其结构式如下图所示 : 4… 光引发剂为苯偶酰双曱醚（商品名为 651 , 得自 Adamas Reagent, Ltd. )。 上述原料组分的重量百分含量见表 1。
将上述原料组分按表 液晶盒内， 在室 温下用 10mW/cm2的紫外光照射 20分钟后，形成蓝相液晶复合材料。用偏光 显微镜观察聚合后该蓝相液晶复合材料温域均能达到室温。 对制得蓝相液晶 复合材料进行 Δη、 Δε和饱和电压测试， 其结果见表 1。 对比例
本对比例提供一种蓝相液晶复合材料， 该蓝相液晶复合材料是由原料组 分经光聚合形成， 所述原料组分与实施例 1的原料组分的区别在于没有添加 苯炔类物质， 并增加与苯炔类物质相同重量分数的母体蓝相液晶作为替代。 该蓝相液晶复合材料的其它组分和重量分数与实施例 1所用的组分和重量分 数相同。 对制得蓝相液晶复合材料进行 Δη、 Δε和饱和电压测试， 其结果见 表 1。 测试方法：
本实施例中蓝相液晶复合材料的电光性能评估方法如下：
1、 蓝相液晶复合材料的电光迟滞特性 蓝相液晶的电光迟滞特性通常定义为 Δ^ 。η, 其中， 。η是透过率最大时 对应的电压值，Δ 是在透过率为最高透过率的一半时的电压正向作用和反向 作用的电压值之差。 Δ / 。η值越小， 电光迟滞越小， 反之， 则电光迟滞严重。
2、 蓝相液晶复合材料的克尔常数 Κ的计算
克尔常数 Κ 的计算： 按照克尔效应公式 （1 ), 在一定场强范围内， Δ¾^^ 与电场强度 的平方成正比，做出二者之间的关系图，则相应直线 斜率即为克尔常数 Κ。
( 1 )
蓝相液晶复合材料的组分和含量、 该复合材料性能测试
Figure imgf000023_0001
由图 1看见， 实施例 1中蓝相液晶复合材料的在不同温度偏光下的蓝相 织构。 从表 1和图 2可以看出，对比例 1中所测得的 Δη和 Δε最小， Vsat最大。 在加入苯炔类物质后， 所有实施例的 An和 Δε都有一定程度的提高， 对应的 饱和电压（Vsat )有了显著的降低。 此外， 见图 3-5, 对于同一系列的化合物 之间来说（实施例 1-3 ), 侧基氟原子越多， 其介电常数增加的越大， 同时饱 和电压也更小。 这是因为侧基氟原子能够显著增强化合物的介电常数， 因而 实施例 1-3添加后蓝相液晶复合材料的介电常数呈现逐渐增加的趋势。
图 2-5所示的蓝相液晶复合材料的电光性能测试图， 从图可以得出各自 的饱和电压（按透过率最大时的电压）分别为 70V、 39V、 36V、 34V, 可见 饱和电压得到了有效的降低。
限于篇幅， 本发明给出实施例 9所述的蓝相液晶复合材料的电光性能测 试图 （见图 6 ), 可见， 其饱和电压 （按透过率最大时的电压）为 39V。
对各个实施例所述的蓝相液晶复合材料测得的电光曲线推导得出的克尔 常数的数量级为 10-1GmV2, 比一般的蓝相液晶克尔系数大约 100倍。 例如， 图 7显示了实施例 9所述的蓝相液晶复合材料的诱导双折射率随电压平方的 变化曲线， 其斜率即为克尔常数， Kerr=4.5xlO_1()mV2。
从上述测试结果， 可以看出， 通过添加具有大双折射率和介电常数的苯 炔类物质， 所得蓝相液晶复合材料的 Δη和 Δε都有较大的提高， 饱和电压相 对未加入苯炔类物质前有了 ^艮大的改善。 最低饱和电压已经降到了 34V, 效 果非常明显。 实施例 13
本实施例提供一种液晶显示器， 其包括上述的蓝相液晶复合材料。 所述 液晶显示器可以为： 液晶面板、 手机、 平板电脑、 电视机、 显示器、 笔记本 电脑、 数码相框、 导航仪等任何具有显示功能的产品或部件。
可以理解的是， 以上实施方式仅仅是为了说明本发明的原理而采用的示 例性实施方式， 然而本发明并不局限于此。 对于本领域内的普通技术人员而 言， 在不脱离本发明的精神和实质的情况下， 可以做出各种变型和改进， 这 些变型和改进也视为本发明的保护范围。

Claims

权利要求书
1. 一种蓝相液晶复合材料， 其由原料组分经光聚合形成， 所述原料组 分包括： 母体蓝相液晶、 苯炔类物质、 手性化合物、 光可聚合单体、 光引发 剂。
2. 如权利要求 1所述的蓝相液晶复合材料， 其中， 所述原料组分的重 量百分含量为：
母体蓝相液晶： 55.0wt%-84.9wt%；
苯炔类物质： 5.0wt%-30.0wt%；
手性化合物： 5.0wt%-30.0wt%；
光可聚合单体： 5.0wt%-30.0wt%；
光引发剂： 0. lwt%-2.0wt%。
3. 如权利要求 1或 2所述的蓝相液晶复合材料， 其中， 所述苯炔类物 质的结构式如下：
Figure imgf000025_0001
其中， 为烷基苯、 烷氧基苯、 烷基联苯、 烷氧基联苯、 烷基苯乙炔、 烷氧苯乙炔、 烷基萘、 烷氧基萘中的任意一种；
R2为氢或氟；
R3为氢或氟；
R4为 tt、 硫氰基、 三氟曱基、 对苯曱腈基、 对^^氰基、 对苯三氟 曱基中的任意一种。
4. 如权利要求 3所述的蓝相液晶复合材料， 其中， 所述的 的结构式 为如下结构式中的任意一种：
Figure imgf000026_0001
其中， n为 1-20之间任一整数。
5. 如权利要求 3所述的蓝相液晶复合材料， 其中， 所述 R4的结构式为 如下结构式中的任意一种：
-CN ; - CS： -CFj
Figure imgf000026_0002
其中， X， Y独立地选自氢原子或氟原子。
6. 如权利要求 1或 2所述的蓝相液晶复合材料， 其中， 所述手性化合 物为异山梨醇类化合物或甘露醇类手性化合物。
7. 如权利要求 6所述的蓝相液晶复合材料， 其中， 所述异山 合物或甘露醇类手性化合物的结构式为如下结构式中的任意一种：
Figure imgf000027_0001
其中， R为烷基， 所述烷基的碳原子数为 1 ~ 10。
8. 如权利要求 1或 2所述的蓝相液晶复合材料， 其中， 所述的光可聚 合单体为 12HMA、 TMPTMA、 C6M、 C3M 中的任意一种或几种， 其中 12HMA、 TMPTMA、 C6M、 C3M的结构式如下：
CH3
=C-COO—— C12H25
Figure imgf000027_0002
9. 如权利要求 1或 2所述的蓝相液晶复合材料， 其中， 所述的光引发 剂为紫外引发剂苯偶酰双曱醚， 其结构式如下：
Figure imgf000027_0003
10. 一种液晶显示器， 其包括如权利要求 1-9任一所述的蓝相液晶复合 材料。
PCT/CN2013/087264 2013-05-31 2013-11-15 蓝相液晶复合材料和含该材料的液晶显示器 Ceased WO2014190682A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/355,248 US9567523B2 (en) 2013-05-31 2013-11-15 Blue phase liquid crystal composite material and liquid crystal display comprising the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310214774XA CN103289710A (zh) 2013-05-31 2013-05-31 一种蓝相液晶复合材料和含该材料的液晶显示器
CN201310214774.X 2013-05-31

Publications (1)

Publication Number Publication Date
WO2014190682A1 true WO2014190682A1 (zh) 2014-12-04

Family

ID=49091257

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/087264 Ceased WO2014190682A1 (zh) 2013-05-31 2013-11-15 蓝相液晶复合材料和含该材料的液晶显示器

Country Status (3)

Country Link
US (1) US9567523B2 (zh)
CN (1) CN103289710A (zh)
WO (1) WO2014190682A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150034868A1 (en) * 2013-07-31 2015-02-05 Semiconductor Energy Laboratory Co., Ltd. Isosorbide derivative, liquid crystal composition, liquid crystal element, and liquid crystal display device

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103289710A (zh) * 2013-05-31 2013-09-11 京东方科技集团股份有限公司 一种蓝相液晶复合材料和含该材料的液晶显示器
CN105348295A (zh) * 2015-09-25 2016-02-24 西安近代化学研究所 一种稳定蓝相液晶用聚合物单体及合成方法
CN105700262B (zh) * 2016-04-13 2019-04-30 深圳市华星光电技术有限公司 液晶显示装置及其制作方法
CN109061976A (zh) * 2017-06-13 2018-12-21 江苏和成显示科技有限公司 一种液晶显示器件及其应用
CN108517217B (zh) * 2018-07-05 2020-02-14 西安近代化学研究所 一种炔类液晶化合物、制备方法及含有此化合物的组合物以及包含此液晶介质的高频组件
CN109705883B (zh) * 2018-11-26 2020-08-07 江西慧勤光电科技有限公司 一种高稳定性的含氟蓝相液晶复合材料及其制备方法
CN112029514B (zh) * 2020-09-03 2021-11-30 清华大学 一种聚合物稳定型蓝相液晶组合物及其制备方法
CN113589573B (zh) * 2021-06-25 2024-01-16 北京化工大学 一种感知环境光线变化的智能液晶调光膜

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005080529A1 (ja) * 2004-02-20 2005-09-01 Asahi Glass Company, Limited 光学素子用液晶材料および光変調素子
CN102517040A (zh) * 2011-12-15 2012-06-27 昆山龙腾光电有限公司 蓝相液晶材料配方、蓝相液晶材料及其制作方法
CN102517035A (zh) * 2011-10-05 2012-06-27 友达光电股份有限公司 蓝相液晶组合物以及蓝相液晶面板
CN102827615A (zh) * 2012-08-30 2012-12-19 昆山龙腾光电有限公司 联苯炔类蓝相液晶复合材料及其制作方法
CN103289710A (zh) * 2013-05-31 2013-09-11 京东方科技集团股份有限公司 一种蓝相液晶复合材料和含该材料的液晶显示器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4972858B2 (ja) * 2004-09-24 2012-07-11 Ｊｎｃ株式会社 高分子と光学活性な液晶材料からなる複合体
JP2007308534A (ja) * 2006-05-16 2007-11-29 Asahi Glass Co Ltd 液晶／高分子複合体
WO2011145536A1 (en) * 2010-05-21 2011-11-24 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal composition and liquid crystal display device
US9011989B2 (en) * 2011-11-01 2015-04-21 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal composition, composite of polymer and liquid crystal, and liquid crystal display device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005080529A1 (ja) * 2004-02-20 2005-09-01 Asahi Glass Company, Limited 光学素子用液晶材料および光変調素子
CN102517035A (zh) * 2011-10-05 2012-06-27 友达光电股份有限公司 蓝相液晶组合物以及蓝相液晶面板
CN102517040A (zh) * 2011-12-15 2012-06-27 昆山龙腾光电有限公司 蓝相液晶材料配方、蓝相液晶材料及其制作方法
CN102827615A (zh) * 2012-08-30 2012-12-19 昆山龙腾光电有限公司 联苯炔类蓝相液晶复合材料及其制作方法
CN103289710A (zh) * 2013-05-31 2013-09-11 京东方科技集团股份有限公司 一种蓝相液晶复合材料和含该材料的液晶显示器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150034868A1 (en) * 2013-07-31 2015-02-05 Semiconductor Energy Laboratory Co., Ltd. Isosorbide derivative, liquid crystal composition, liquid crystal element, and liquid crystal display device
US9441164B2 (en) * 2013-07-31 2016-09-13 Semiconductor Energy Laboratory Co., Ltd. Isosorbide derivative, liquid crystal composition, liquid crystal element, and liquid crystal display device

Also Published As

Publication number Publication date
US20150315467A1 (en) 2015-11-05
CN103289710A (zh) 2013-09-11
US9567523B2 (en) 2017-02-14

Similar Documents

Publication Publication Date Title
Lee et al. Color-tunable mirrors based on electrically regulated bandwidth broadening in polymer-stabilized cholesteric liquid crystals
CN103289710A (zh) 一种蓝相液晶复合材料和含该材料的液晶显示器
JP5487398B2 (ja) 液晶組成物および液晶素子
JP2006301643A (ja) 負の誘電異方性液晶を配向させる方法
TW201120197A (en) Polymerisable LC material and polymer film with negative optical dispersion
CN109486500B (zh) 液晶组合物及其液晶显示元件或显示器
TW201231630A (en) Liquid crystal medium and liquid crystal display
JP2018510383A (ja) 液晶素子
WO2005090520A1 (ja) 液晶表示素子
Ahmad et al. Investigation of nonionic diazo dye-doped polymer dispersed liquid crystal film
WO2015014217A1 (zh) 液晶组合物及其应用
JP2016534176A (ja) 液晶ポリマー組成物、それを製造するための方法およびそれを含む液晶物品
Ahmad et al. Comparative study on the electrooptical properties of polymer‐dispersed liquid crystal films with different mixtures of monomers and liquid crystals
Ouskova et al. Ultra-fast solid state electro-optical modulator based on liquid crystal polymer and liquid crystal composites
CN109423306B (zh) 液晶组合物及液晶显示元件
Kemiklioglu et al. Stabilization of cholesteric blue phases using polymerized nanoparticles
Xu et al. Effect of different types of mesogenic compounds with fluorine and cyano-group on the working temperature of polymer dispersed liquid crystal films
CN107814783A (zh) 可聚合化合物及其制备方法和应用
Zhang et al. The physical properties of alkene-terminated liquid crystal molecules/E8 mixture and the electro-optical properties as they doped in polymer-dispersed liquid crystal systems
Yu et al. Effects of acrylate monomers with different alkyl chain structure on the electro‐optical properties and microstructure of polymer dispersed liquid crystals
CN104650927A (zh) 液晶组合物
CN106479515B (zh) 一种液晶组合物及液晶透镜
CN103906823B (zh) 聚合性液晶组合物
CN111373017A (zh) 液晶组合物和液晶显示元件
CN110536949B (zh) 光调制元件

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 14355248

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13885671

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANTN TO RULE 112(1) EPC ( EPO FORM 1205A DATED 08-06-2016 )

122 Ep: pct application non-entry in european phase

Ref document number: 13885671

Country of ref document: EP

Kind code of ref document: A1