WO2017084147A1 - 反应型垂直取向有机硅材料及液晶显示面板的制作方法 - Google Patents

反应型垂直取向有机硅材料及液晶显示面板的制作方法 Download PDF

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WO2017084147A1
WO2017084147A1 PCT/CN2015/098500 CN2015098500W WO2017084147A1 WO 2017084147 A1 WO2017084147 A1 WO 2017084147A1 CN 2015098500 W CN2015098500 W CN 2015098500W WO 2017084147 A1 WO2017084147 A1 WO 2017084147A1
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liquid crystal
substrate
vertical alignment
silicone material
electrode
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French (fr)
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兰松
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/914,646 priority Critical patent/US10167426B2/en
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    • C—CHEMISTRY; METALLURGY
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    • 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
    • C09K19/56—Aligning agents
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02—Silicon compounds
    • C07F7/08—Compounds having one or more C—Si linkages
    • C07F7/12—Organo silicon halides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02—Silicon compounds
    • C07F7/08—Compounds having one or more C—Si linkages
    • C07F7/12—Organo silicon halides
    • C07F7/121—Preparation or treatment not provided for in C07F7/14, C07F7/16 or C07F7/20
    • C07F7/122—Preparation or treatment not provided for in C07F7/14, C07F7/16 or C07F7/20 by reactions involving the formation of Si-C linkages
    • 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
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    • 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
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • G02F1/133719—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films with coupling agent molecules, e.g. silane
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    • 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
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    • 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
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    • 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
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C09K2323/02—Alignment layer characterised by chemical composition
    • C09K2323/023—Organic silicon compound, e.g. organosilicon
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a reactive vertical alignment silicone material and a method of fabricating the liquid crystal display panel.
  • LCDs liquid crystal displays
  • Various consumer electronic products such as digital assistants, digital cameras, notebook computers, and desktop computers have become mainstream in display devices.
  • liquid crystal display devices which include a liquid crystal display panel and a backlight module.
  • the working principle of the liquid crystal display panel is to place liquid crystal molecules in two parallel glass substrates. There are many vertical and horizontal small wires between the two glass substrates, and the liquid crystal molecules are controlled to change direction by energizing or not, and the light of the backlight module is changed. Refracted to produce a picture.
  • a liquid crystal display panel comprises a CF (Color Filter) substrate, a thin film transistor (TFT) substrate, a liquid crystal (LC) sandwiched between the color filter substrate and the thin film transistor substrate, and a sealant frame ( Sealant) composition.
  • CF Color Filter
  • TFT thin film transistor
  • LC liquid crystal
  • Sealant sealant frame
  • an alignment film commonly used polyimide (PI) material
  • the main component of such a phase-matching film is a friction-aligned PI material or a photo-aligned PI material, but any alignment material has its own disadvantages.
  • the friction-aligned PI material is liable to cause problems such as dust particles, static electricity, and brush marks, thereby reducing the process yield.
  • the photo-alignment type PI material can avoid these problems, heat resistance and aging resistance are limited due to material properties.
  • the PI material itself has high polarity and high water absorption, storage and transportation are easy to cause deterioration and lead to uneven alignment, and PI
  • the material is expensive, and the process of film formation on the TFT-LCD is also complicated, resulting in an increase in panel cost. Then, in the TFT-LCD, if the liquid crystal molecules can be aligned even in the case where the PI film is omitted, the cost of the production panel can be greatly reduced.
  • the surface of the substrate can rely on hydrogen bonding between its own Cl atoms and -OH on the surface of the substrate to achieve the purpose of vertically aligning the liquid crystal molecules; when heated, the -Si-Cl in the silicone material and the surface of the substrate The -OH undergoes a chemical reaction to form a -Si-O- bond, which is anchored to the surface of the substrate by chemical bonding, which further improves the stability of the anchored liquid crystal molecules.
  • Another object of the present invention is to provide a method for fabricating a liquid crystal display panel. Compared with the prior art, the PI film process is omitted, the production cost is reduced, the productivity is improved, and the alignment effect of the liquid crystal molecules is good.
  • the present invention provides a reactive vertical alignment silicone material having a structural formula of A-R, wherein
  • A refers to -SiCl 3 ;
  • the structural formula of the reactive vertical alignment silicone material is:
  • the invention also provides a method for fabricating a liquid crystal display panel, comprising the following steps:
  • Step 1 providing a CF substrate and a TFT substrate, and a liquid crystal mixture
  • a first electrode is disposed on a surface of one side of the CF substrate, and a second electrode is disposed on a surface of one side of the TFT substrate;
  • the liquid crystal mixture is dripped onto the surface of the TFT substrate on the side of the second electrode by a liquid crystal dropping process, and the sealant is applied at a peripheral position of the surface of the CF substrate on the side of the first electrode. Bonding the CF substrate and the TFT substrate together in an environment;
  • the reactive vertical alignment silicone material is vertically aligned on the substrate by forming a hydrogen bonding force between the Cl atoms of the substrate and the -OH surface of the substrate, so that the liquid crystal molecules are aligned perpendicular to the CF substrate and the TFT substrate;
  • Step 2 after UV curing of the sealant, and then performing a high-temperature curing process, in the high-temperature curing process of the sealant, the -Si-Cl and CF substrate and the surface of the TFT substrate in the reactive vertical alignment silicone material -OH is chemically reacted, and HCl is removed to form a -Si-O- bond, so that the reactive vertical alignment silicone material is anchored to the surface of the CF substrate and the TFT substrate by -Si-O-bonding;
  • Step 3 applying a voltage to both sides of the liquid crystal mixture through the first electrode and the second electrode to deflect the liquid crystal molecules;
  • Step 4 while applying a voltage to both sides of the liquid crystal mixture, irradiating the liquid crystal mixture with UV light, so that the reactive vertical alignment silicone material and the reactive monomer are polymerized on the surface of the CF substrate and the TFT substrate to achieve anchoring of the liquid crystal molecules.
  • Step 5 Stop applying a voltage to both sides of the liquid crystal mixture to cause the liquid crystal molecules to produce a pretilt angle.
  • the structural formula of the reactive vertical alignment silicone material is:
  • the reactive monomer is one or more of the following four compounds:
  • the content of the reactive vertical alignment silicone material is 0.1 to 5 wt%, and the content of the reactive monomer is 0.01 to 0.1 wt%.
  • the first electrode and the second electrode are a common electrode and a pixel electrode, respectively.
  • the frame glue is cured by UV irradiation with UV light having an illuminance of 65 mW/cm 2 , and the temperature of the high temperature curing process of the sealant is 120 ° C.
  • the voltage applied to both sides of the liquid crystal mixture is 15 to 25V.
  • the intensity of the UV light irradiated to the liquid crystal display panel is 50 to 85 mW/cm 2 ; and the wavelength of the UV light is 365 nm.
  • the invention also provides a method for fabricating a liquid crystal display panel, comprising the following steps:
  • Step 1 providing a CF substrate and a TFT substrate, and a liquid crystal mixture
  • a first electrode is disposed on a surface of one side of the CF substrate, and a second electrode is disposed on a surface of one side of the TFT substrate;
  • the reactive vertical alignment silicone material is vertically aligned on the substrate by forming a hydrogen bonding force between the Cl atoms of the substrate and the -OH surface of the substrate, so that the liquid crystal molecules are aligned perpendicular to the CF substrate and the TFT substrate;
  • Step 2 after UV curing of the sealant, and then performing a high-temperature curing process, in the high-temperature curing process of the sealant, the -Si-Cl and CF substrate and the surface of the TFT substrate in the reactive vertical alignment silicone material -OH is chemically reacted, and HCl is removed to form a -Si-O- bond, so that the reactive vertical alignment silicone material is anchored to the surface of the CF substrate and the TFT substrate by -Si-O-bonding;
  • Step 3 applying a voltage to both sides of the liquid crystal mixture through the first electrode and the second electrode to deflect the liquid crystal molecules;
  • Step 4 while applying a voltage to both sides of the liquid crystal mixture, irradiating the liquid crystal mixture with UV light, so that the reactive vertical alignment silicone material and the reactive monomer are polymerized on the surface of the CF substrate and the TFT substrate to achieve anchoring of the liquid crystal molecules.
  • Step 5 stopping applying a voltage to both sides of the liquid crystal mixture, so that the liquid crystal molecules generate a pretilt angle
  • the frame glue is UV-cured and cured by UV light having an illuminance of 65 mW/cm 2 , and the temperature of the high temperature curing process of the sealant is 120 ° C;
  • step 3 and step 4 the voltage applied to both sides of the liquid crystal mixture is 15 to 25V;
  • the intensity of the UV light irradiated to the liquid crystal display panel is 50 to 85 mW/cm 2 ; and the wavelength of the UV light is 365 nm.
  • A refers to -SiCl 3
  • R refers to a linear or branched alkyl group having 5 to 20 C atoms, and a certain CH 2 group in the alkyl group is a phenyl group, a cycloalkyl group, -CONH-
  • the silicone material On the surface of the substrate without the PI film, the silicone material mainly relies on hydrogen bonding interaction between its own Cl atoms and -OH on the surface of the substrate to achieve the purpose of vertically aligning the liquid crystal molecules; when heated, the silicone material is -Si-Cl chemically reacts with -OH on the surface of the substrate to form a -Si-O- bond, which is anchored to the surface of the substrate by chemical bonding, which further improves the stability of the anchored liquid crystal molecules;
  • the liquid crystal display panel of the vertical alignment organic silicon material can not use the alignment film, which not only simplifies the process of the TFT-LCD, but also greatly reduces the production cost of the TFT-LCD; the liquid crystal display panel of the present invention is simple in manufacturing method, and the invention is omitted.
  • the PI film process reduces production costs, increases productivity, and has a good alignment effect of liquid crystal molecules.
  • FIG. 1 is a schematic view showing the action of a reactive vertical alignment silicone material of the present invention on a surface of a substrate;
  • step 1 is a schematic view of step 1 of a method for fabricating a liquid crystal display panel of the present invention
  • step 2 is a schematic diagram of step 2 of a method for fabricating a liquid crystal display panel of the present invention
  • step 3 is a schematic diagram of step 3 of a method for fabricating a liquid crystal display panel of the present invention.
  • step 4 is a schematic diagram of step 4 of a method for fabricating a liquid crystal display panel of the present invention
  • FIG. 6 is a schematic view showing the fifth step of the method for fabricating the liquid crystal display panel of the present invention.
  • the present invention provides a reactive vertical alignment silicone material having a structural formula of A-R, wherein
  • A refers to -SiCl 3 ;
  • the structural formula of the reactive vertical alignment silicone material is:
  • the reactive vertical alignment silicone material of the present invention mainly comprises two parts of a head group A and a tail group R.
  • the main function of the head group A is to form a self between -Cl and -OH on the surface of the substrate.
  • the hydrogen bonding force causes the silicone material to be vertically aligned on the substrate by hydrogen bonding force.
  • the -Si-Cl in the head group A chemically reacts with -OH on the surface of the substrate to form -Si- O-bond, so that the silicone material is anchored on the surface of the substrate by chemical bonding, further improving the stability of the anchoring liquid crystal molecules, and the main function of the tail group R is similar to the action of the PI branch in a steric manner
  • the liquid crystal molecules are arranged vertically.
  • Step 2 adding CuCl 2 having a molar ratio of diazonium salt (II) to 1-1.2 in the product diazonium salt (II) obtained in the step 1, and reacting at 50 to 100 ° C for 1 to 5 hours; Chlorobenzene (III);
  • a solvent toluene or n-hexane
  • Step 3 In the product diazonium salt (VII) obtained in the step 2, CuCl 2 having a molar ratio of diazonium salt (VII) of 1 to 1.2 is added, and the reaction is carried out at 50 to 100 ° C for 1 to 5 hours to obtain a product. Chlorobenzene (VIII);
  • the reagent and trichlorosilane are dissolved in a solvent (toluene or n-hexane), a small amount of metal Pd is used as a catalyst, the reaction temperature is 130 to 135 ° C, and the reaction is carried out for 1 to 3 hours, and the compound (IX) can be obtained after purification.
  • the reactive vertical alignment silicone material provided by the invention can rely on hydrogen bonding interaction between its own Cl atom and -OH on the surface of the substrate on the surface of the substrate without the PI film, so as to achieve vertical alignment of the liquid crystal molecules.
  • Purpose When heated, the -Si-Cl in the silicone material chemically reacts with -OH on the surface of the substrate to form a -Si-O- bond, which is anchored to the surface of the substrate by chemical bonding, thereby further enhancing the anchoring liquid crystal.
  • the liquid crystal display panel using the reactive type vertically oriented silicone material can not use the alignment film, which not only simplifies the process of the TFT-LCD, but also greatly reduces the production cost of the TFT-LCD.
  • the present invention further provides a method for fabricating a liquid crystal display panel based on the above-mentioned reactive vertical alignment silicone material, comprising the following steps:
  • Step 1 as shown in Figure 2, provides a CF substrate 1 and TFT substrate 2, and liquid crystal mixture 3;
  • the first electrode 11 is disposed on the surface of the CF substrate 1 side, and the second electrode 21 is disposed on the surface of the TFT substrate 2;
  • the liquid crystal mixture 3 is dropped onto the surface of the TFT substrate 2 on the side where the second electrode 21 is provided by a liquid crystal dropping process, and the sealant 4 is applied to the peripheral position of the surface of the CF substrate 1 on the side where the first electrode 11 is provided.
  • the CF substrate 1 and the TFT substrate 2 are assembled in a vacuum environment;
  • the reactive vertical alignment silicone material 32 is vertically aligned on the substrate by forming a hydrogen bonding force between its own Cl atoms and -OH on the surface of the substrate, so that the liquid crystal molecules 31 are perpendicular to the CF substrate 1 and the TFT.
  • the substrates 2 are arranged.
  • the structural formula of the reactive vertical alignment silicone material 32 is:
  • the reactive monomer 33 may be any reactive monomer used in the polymer vertical alignment technique (PSVA).
  • PSVA polymer vertical alignment technique
  • the reactive monomer 33 may be one or more of the following four compounds:
  • the content of the reactive vertical alignment silicone material 32 is 0.1 to 5 wt%, and the content of the reactive monomer 33 is 0.01 to 0.1 wt%.
  • the first electrode 11 and the second electrode 21 are a common electrode and a pixel electrode, respectively.
  • Step 2 as shown in FIG. 3, after the frame glue 4 is irradiated with UV light having an illuminance of 65 mW/cm 2 and cured, and then subjected to a high-temperature curing process of 120 ° C, in the high-temperature curing process of the sealant 4, the reaction type -Si-Cl in the vertically oriented silicone material 32 chemically reacts with the -OH of the CF substrate 1, and the surface of the TFT substrate 2, and removes HCl to form a -Si-O- bond, thereby causing the reactive vertical alignment silicone The material 32 is anchored to the surface of the CF substrate 1 and the TFT substrate 2 in a manner of -Si-O-bond.
  • Step 3 as shown in FIG. 4, a voltage of 15 to 25 V is applied to both sides of the liquid crystal mixture 3 through the first electrode 11 and the second electrode 21 to deflect the liquid crystal molecules 31.
  • Step 4 as shown in FIG. 5, while applying a voltage of 15 to 25 V to both sides of the liquid crystal mixture 3, the liquid crystal mixture 3 is irradiated with UV light of 50 to 85 mW/cm 2 to make the reactive vertical alignment silicone material 32 and The reactive monomer 33 is polymerized on the surface of the CF substrate 1 and the TFT substrate 2 to achieve the purpose of anchoring the liquid crystal molecules 31.
  • the UV light has a wavelength of 365 nm.
  • Step 5 As shown in FIG. 6, the application of a voltage to both sides of the liquid crystal mixture 3 is stopped, so that the liquid crystal molecules 31 generate a pretilt angle.
  • the present invention provides a method for fabricating a liquid crystal display panel by sandwiching a liquid crystal mixture between a CF substrate and a TFT substrate not provided with a PI film, the liquid crystal mixture comprising liquid crystal molecules, a reactive vertical alignment organic silicon material, and a reaction a monomer, whereby -Si-Cl in the reactive vertical alignment silicone material chemically reacts with -OH on the surface of the substrate to form a -Si-O- bond during UV irradiation curing and high temperature curing of the sealant Anchored on the surface of the substrate by chemical bonding, so that the liquid crystal molecules are aligned perpendicular to the CF substrate and the TFT substrate, and then a voltage is applied to the liquid crystal mixture to deflect the liquid crystal molecules, and finally the liquid crystal mixture is irradiated with UV light to make the reactive vertical alignment organic
  • the silicon material and the reactive monomer are polymerized on the surface of the CF substrate and the TFT substrate to achieve the purpose of anchoring the liquid crystal molecules.
  • the liquid crystal display panel of the present invention has a simple manufacturing method, saves the PI film process, reduces the production cost, improves the productivity, and has a good alignment effect of the liquid crystal molecules.
  • A refers to -SiCl 3 R represents a linear or branched alkyl group having 5 to 20 C atoms, and a certain CH 2 group in the alkyl group is a phenyl group, a cycloalkyl group, -CONH-, -COO-,
  • the silicone material On the surface of the substrate without the PI film, the silicone material mainly relies on hydrogen bonding interaction between its own Cl atoms and -OH on the surface of the substrate to achieve the purpose of vertically aligning the liquid crystal molecules; when heated, the silicone material is -Si-Cl chemically reacts with -OH on the surface of the substrate to form a -Si-O- bond, which is anchored to the surface of the substrate by chemical bonding, which further improves the stability of the anchored liquid crystal molecules;
  • the liquid crystal display panel of the vertical alignment organic silicon material can not use the alignment film, which not only simplifies the process of the TFT-LCD, but also greatly reduces the production cost of the TFT-LCD; the liquid crystal display panel of the present invention is simple in manufacturing method, and the invention is omitted.
  • the PI film process reduces production costs, increases productivity, and has a good alignment effect of liquid crystal molecules.

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Abstract

一种反应型垂直取向有机硅材料（32）及液晶显示面板的制作方法，所述反应型垂直取向有机硅材料（32）的结构通式为A-R，其中，A指的是-SiCl 3；R指的是具有5～20个C原子的直链或支链化的烷基、该烷基中的某个CH2基团被苯基、环烷基、-CONH-、-COO-、-O-CO-、-CO-或-CH＝CH-所取代的基团、或者该烷基中的某个H原子被F、或Cl原子取代的基团。在无PI膜的基板（1，2）表面，该反应型垂直取向有机硅材料（32）主要依靠自身的Cl原子与基板（1，2）表面的-OH之间的氢键相互作用，以达到使得液晶分子（31）垂直排列的目的；加热时，该有机硅材料中的-Si-Cl会与基板（1，2）表面的-OH发生化学反应，形成-Si-O-键，以化学键的方式锚定在基板（1，2）表面，可进一步提高锚定液晶分子（31）的稳定性。

Description

反应型垂直取向有机硅材料及液晶显示面板的制作方法 技术领域
本发明涉及显示技术领域，尤其涉及一种反应型垂直取向有机硅材料及液晶显示面板的制作方法。
背景技术
随着显示技术的发展，液晶显示器(Liquid Crystal Display，LCD)等平面显示装置因具有高画质、省电、机身薄及应用范围广等优点，而被广泛的应用于手机、电视、个人数字助理、数字相机、笔记本电脑、台式计算机等各种消费性电子产品，成为显示装置中的主流。
现有市场上的液晶显示装置大部分为背光型液晶显示器，其包括液晶显示面板及背光模组(backlight module)。液晶显示面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，两片玻璃基板中间有许多垂直和水平的细小电线，通过通电与否来控制液晶分子改变方向，将背光模组的光线折射出来产生画面。
通常液晶显示面板由彩膜(CF，Color Filter)基板、薄膜晶体管(TFT，Thin Film Transistor)基板、夹于彩膜基板与薄膜晶体管基板之间的液晶(LC，Liquid Crystal)及密封胶框(Sealant)组成。
在液晶显示器的CF基板和TFT基板上，分别有一层薄膜材料，其主要作用是使液晶分子按一定方向排列，我们称之为配向膜(常用聚酰亚胺(PI)材料)。这种配相膜的主要成分为摩擦配向型PI材料或光配向型PI材料，但是，无论那种配向材料都会有各自的缺点。首先摩擦配向型PI材料容易造成粉尘颗粒、静电残留、刷痕等问题，从而降低工艺良率，而光配向型PI材料虽然可以避免这些问题，但由于材料特性受限，耐热性和耐老化性不佳，同时锚定LC分子的能力也较弱，从而影响面板的品质；其次，PI材料本身就具有高极性和高吸水性，存储和运送容易造成变质而导致配向不均，并且PI材料价格昂贵，在TFT-LCD上成膜的工艺也较为复杂，导致面板成本提高。那么在TFT-LCD中，如果能够在省去PI膜的情况下，还能使液晶分子排列，这将会大大降低生产面板的成本。
发明内容
本发明的目的在于提供一种反应型垂直取向有机硅材料，在无PI膜的 基板表面，可以依靠自身的Cl原子与基板表面的-OH之间的氢键相互作用，以达到使得液晶分子垂直排列的目的；加热时，该有机硅材料中的-Si-Cl会与基板表面的-OH发生化学反应，形成-Si-O-键，以化学键的方式锚定在基板表面，可进一步提高锚定液晶分子的稳定性。
本发明的目的还在于提供一种液晶显示面板的制作方法，与现有技术相比，省去了PI膜制程，降低生产成本，提升产能，且液晶分子的配向效果良好。
为实现上述目的，本发明提供一种反应型垂直取向有机硅材料，其结构通式为A-R，其中，
A指的是-SiCl3；
R指的是具有5～20个C原子的直链或支链化的烷基、该烷基中的某个CH2基团被苯基、环烷基、-CONH-、-COO-、-O-CO-、-CO-或-CH＝CH-所取代的基团、或者该烷基中的某个H原子被F、或Cl原子取代的基团。
该反应型垂直取向有机硅材料的结构式为：
Figure PCTCN2015098500-appb-000001
本发明还提供一种液晶显示面板的制作方法，包括以下步骤：
步骤1、提供一CF基板与TFT基板、及液晶混合物；
其中，所述CF基板一侧的表面上设有第一电极，所述TFT基板一侧的表面上设有第二电极；
所述液晶混合物包括液晶分子、反应型垂直取向有机硅材料、及反应性单体；其中，所述反应型垂直取向有机硅材料的结构通式为A-R，其中，A指的是-SiCl3；R指的是具有5～20个C原子的直链或支链化的烷基、该烷基中的某个CH2基团被苯基、环烷基、-CONH-、-COO-、-O-CO-、-CO-或-CH＝CH-所取代的基团、或者该烷基中的某个H原子被F、或Cl原子取代的基团；
采用液晶滴下制程将所述液晶混合物滴注到TFT基板设有第二电极一侧的表面，在CF基板设有第一电极一侧表面的周边位置涂布框胶，在真空 环境下将所述CF基板与TFT基板组立贴合；
此时，所述反应型垂直取向有机硅材料依靠自身的Cl原子与基板表面的-OH之间形成氢键作用力从而垂直排列于基板上，从而使得液晶分子垂直于CF基板与TFT基板排列；
步骤2、对框胶进行UV照射固化后，再进行高温固化制程，在框胶的高温固化制程中，所述反应型垂直取向有机硅材料中的-Si-Cl与CF基板、及TFT基板表面的-OH发生化学反应，脱去HCl形成-Si-O-键，从而使所述反应型垂直取向有机硅材料以-Si-O-键的方式锚定在CF基板与TFT基板表面；
步骤3、通过第一电极与第二电极对液晶混合物两侧施加电压，使液晶分子发生偏转；
步骤4、继续对液晶混合物两侧施加电压的同时，对液晶混合物照射UV光，使得反应型垂直取向有机硅材料与反应性单体在CF基板与TFT基板表面聚合，以达到锚定液晶分子的目的；
步骤5、停止对液晶混合物两侧施加电压，使得液晶分子产生预倾角。
所述反应型垂直取向有机硅材料的结构式为：
Figure PCTCN2015098500-appb-000002
所述反应性单体为以下四种化合物中的一种或多种：
Figure PCTCN2015098500-appb-000003
所述液晶混合物中，所述反应型垂直取向有机硅材料的含量为0.1～5wt％，所述反应性单体的含量为0.01～0.1wt％。
所述第一电极与第二电极分别为公共电极与像素电极。
所述步骤2中，采用照度为65mW/cm2的UV光对框胶进行UV照射固化，所述框胶的高温固化制程的温度为120℃。
所述步骤3与步骤4中，对液晶混合物两侧施加的电压的大小为15～25V。
所述步骤4中，对液晶显示面板照射的UV光的强度为50～85mW/cm2；所述UV光的波长为365nm。
本发明还提供一种液晶显示面板的制作方法，包括以下步骤：
步骤1、提供一CF基板与TFT基板、及液晶混合物；
其中，所述CF基板一侧的表面上设有第一电极，所述TFT基板一侧的表面上设有第二电极；
所述液晶混合物包括液晶分子、反应型垂直取向有机硅材料、及反应性单体；其中，所述反应型垂直取向有机硅材料的结构通式为A-R，其中，A指的是-SiCl3；R指的是具有5～20个C原子的直链或支链化的烷基、该烷基中的某个CH2基团被苯基、环烷基、-CONH-、-COO-、-O-CO-、-CO-或-CH＝CH-所取代的基团、或者该烷基中的某个H原子被F、或Cl原子取代的基团；
采用液晶滴下制程将所述液晶混合物滴注到TFT基板设有第二电极一侧的表面，在CF基板设有第一电极一侧表面的周边位置涂布框胶，在真空环境下将所述CF基板与TFT基板组立贴合；
此时，所述反应型垂直取向有机硅材料依靠自身的Cl原子与基板表面的-OH之间形成氢键作用力从而垂直排列于基板上，从而使得液晶分子垂直于CF基板与TFT基板排列；
步骤2、对框胶进行UV照射固化后，再进行高温固化制程，在框胶的高温固化制程中，所述反应型垂直取向有机硅材料中的-Si-Cl与CF基板、及TFT基板表面的-OH发生化学反应，脱去HCl形成-Si-O-键，从而使所述反应型垂直取向有机硅材料以-Si-O-键的方式锚定在CF基板与TFT基板表面；
步骤3、通过第一电极与第二电极对液晶混合物两侧施加电压，使液晶分子发生偏转；
步骤4、继续对液晶混合物两侧施加电压的同时，对液晶混合物照射UV光，使得反应型垂直取向有机硅材料与反应性单体在CF基板与TFT基板表面聚合，以达到锚定液晶分子的目的；
步骤5、停止对液晶混合物两侧施加电压，使得液晶分子产生预倾角；
其中，所述步骤2中，采用照度为65mW/cm2的UV光对框胶进行UV照射固化，所述框胶的高温固化制程的温度为120℃；
其中，所述步骤3与步骤4中，对液晶混合物两侧施加的电压的大小为15～25V；
其中，所述步骤4中，对液晶显示面板照射的UV光的强度为50～85mW/cm2；所述UV光的波长为365nm。
本发明的有益效果：本发明提供一种反应型垂直取向有机硅材料及液晶显示面板的制作方法，所述反应型垂直取向有机硅材料的结构通式为A-R，其中，A指的是-SiCl3；R指的是具有5～20个C原子的直链或支链化的烷基、该烷基中的某个CH2基团被苯基、环烷基、-CONH-、-COO-、-O-CO-、-CO-或-CH＝CH-所取代的基团、或者该烷基中的某个H原子被F、或Cl原子取代的基团。在无PI膜的基板表面，该有机硅材料主要依靠自身的Cl原子与基板表面的-OH之间的氢键相互作用，以达到使得液晶分子垂直排列的目的；加热时，该有机硅材料中的-Si-Cl会与基板表面的-OH发生化学反应，形成-Si-O-键，以化学键的方式锚定在基板表面，可进一步提高锚定液晶分子的稳定性；从而使得采用该反应型垂直取向有机硅材料的液晶显示面板可以不使用配向膜，不仅可以简化TFT-LCD的制程，而且大大降低了TFT-LCD的生产成本；本发明的液晶显示面板的制作方法简单，省去了PI膜制程，降低生产成本，提升产能，且液晶分子的配向效果良好。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其它有益效果显而易见。
附图中，
图1为本发明的反应型垂直取向有机硅材料与基板表面作用的示意图；
图2为本发明的液晶显示面板的制作方法步骤1的示意图；
图3为本发明的液晶显示面板的制作方法步骤2的示意图；
图4为本发明的液晶显示面板的制作方法步骤3的示意图；
图5为本发明的液晶显示面板的制作方法步骤4的示意图；
图6为本发明的液晶显示面板的制作方法步骤5的示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图1，本发明提供一种反应型垂直取向有机硅材料，其结构通式为A-R，其中，
A指的是-SiCl3；
R指的是具有5～20个C原子的直链或支链化的烷基、该烷基中的某个CH2基团被苯基、环烷基、-CONH-、-COO-、-O-CO-、-CO-或-CH＝CH-所取代的基团、或者该烷基中的某个H原子被F、或Cl原子取代的基团。
优选的，该反应型垂直取向有机硅材料的结构式为：
Figure PCTCN2015098500-appb-000004
如图1所示，本发明的反应型垂直取向有机硅材料，主要包括头基A和尾基R两部分，头基A的主要作用是利用自身的-Cl与基板表面的-OH之间形成氢键作用力，使得该有机硅材料依靠氢键作用力垂直排列于基板上，加热时，所述头基A中的-Si-Cl会与基板表面的-OH发生化学反应，形成-Si-O-键，从而使该有机硅材料以化学键的方式锚定在基板表面，进一步提高锚定液晶分子的稳定性，而尾基R的主要作用是类似于PI支链的作用以立体障碍的方式使液晶分子垂直排列。
下面采用两个实施例来展示本发明的反应型垂直取向有机硅材料的合成方法：
实施例1(由芳香胺合成反应型垂直取向有机硅材料)：
步骤1、按照芳香胺(I)：HCl：NaNO2＝1：(1～5)：(1.01～1.10)的摩尔比称取或量取芳香胺(I)、盐酸、及NaNO2，将取好的芳香胺(I)、盐酸、及NaNO2置于反应器中，搅拌混合，在0～5℃下反应3～5小时，得到产物重氮盐(II)；
Figure PCTCN2015098500-appb-000005
步骤2：在步骤1得到的产物重氮盐(II)中加入与重氮盐(II)的摩尔比为1～1.2的CuCl2，在50～100℃下反应1～5小时；可得到产物氯苯(III)；
Figure PCTCN2015098500-appb-000006
步骤3、按照氯苯(III)：三氯硅烷＝1:1的摩尔比量取苯基格式试剂(氯苯(III)、Mg和LiCl制备)和三氯硅烷，将取好的苯基格式试剂和三氯硅烷溶解于溶剂(甲苯或正己烷)中，采用少量金属Pd作为催化剂，反应温度为130～135℃，反应1～3小时，提纯后可得到所述化合物(IV)。
Figure PCTCN2015098500-appb-000007
对得到的化合物(IV)进行H1-NMR分析，得到的核磁共振数据为：δ＝0.96(3H)，δ＝1.33(2H)，δ＝1.29(6H)，δ＝1.62(2H)，δ＝2.55(2H)，δ＝7.1(2H)，δ＝7.2(2H)。
实施例2(由芳香腈合成反应型垂直取向有机硅材料)：
步骤1、按照芳香腈(V)：LiAlH4＝1：(1～3)的摩尔比称取芳香腈(V)与LiAlH4，按照按照芳香腈(V)：乙醚＝1：3(单位比为mol：L)量取乙醚，将取好的芳香腈(V)与LiAlH4溶解于乙醚中；然后在72℃下采用加热回流的方式进行反应1～5小时，然后按照V(NaOH)/V(乙醚)＝2/1的体积比加入含有20wt％氢氧化钠的冰水溶液继续反应，即可得到产物芳香胺(VI)；
Figure PCTCN2015098500-appb-000008
步骤2、按照芳香胺(VI)：HCl：NaNO2＝1：(1～5)：(1.01～1.10)的摩尔比称取或量取上述步骤1制得的芳香胺(VI)、盐酸、及NaNO2，将取好的芳香胺(VI)、盐酸、及NaNO2置于反应器中，搅拌混合，在0～5℃下反应3～5小时，得到产物重氮盐(VII)；
Figure PCTCN2015098500-appb-000009
步骤3：在步骤2得到的产物重氮盐(VII)中加入与重氮盐(VII)的摩尔比为1～1.2的CuCl2，在50～100℃下反应1～5小时，可得到产物氯苯(VIII)；
Figure PCTCN2015098500-appb-000010
步骤4、按照氯苯(VIII)：三氯硅烷＝1:1的摩尔比量取苯基格式试剂(氯苯(VIII)、Mg和LiCl制备)和三氯硅烷，将取好的苯基格式试剂和三氯硅烷溶解于溶剂(甲苯或正己烷)中，采用少量金属Pd作为催化剂，反应温度为130～135℃，反应1～3小时，提纯后可得到所述化合物(IX)。
Figure PCTCN2015098500-appb-000011
对得到的化合物(IX)进行H1-NMR分析，得到的核磁共振数据为：δ＝0.96(3H)，δ＝1.33(2H)，δ＝1.29(2H)，δ＝1.62(2H)，δ＝2.55(2H)，δ＝7.18(2H)，δ＝7.43(2H)，δ＝7.54(4H)，δ＝7.5(2H)，δ＝7.3(2H)。
本发明提供的一种反应型垂直取向有机硅材料，在无PI膜的基板表面，可以依靠自身的Cl原子与基板表面的-OH之间的氢键相互作用，以达到使得液晶分子垂直排列的目的；加热时，该有机硅材料中的-Si-Cl会与基板表面的-OH发生化学反应，形成-Si-O-键，以化学键的方式锚定在基板表面，可进一步提高锚定液晶分子的稳定性。从而使得采用该反应型垂直取向有机硅材料的液晶显示面板可以不使用配向膜，不仅可以简化TFT-LCD的制程，而且大大降低了TFT-LCD的生产成本。
请参阅图2-5，基于上述反应型垂直取向有机硅材料，本发明还提供一种液晶显示面板的制作方法，包括以下步骤：
步骤1、如图2所示，提供一CF基板1与TFT基板2、及液晶混合物3；
其中，所述CF基板1一侧的表面上设有第一电极11，所述TFT基板2一侧的表面上设有第二电极21；
所述液晶混合物3包括液晶分子31、反应型垂直取向有机硅材料32、及反应性单体33；其中，所述反应型垂直取向有机硅材料32的结构通式为A-R，其中，A指的是-SiCl3；R指的是具有5～20个C原子的直链或支链化的烷基、该烷基中的某个CH2基团被苯基、环烷基、-CONH-、-COO-、 -O-CO-、-CO-或-CH＝CH-所取代的基团、或者该烷基中的某个H原子被F、或Cl原子取代的基团；
采用液晶滴下制程将所述液晶混合物3滴注到TFT基板2设有第二电极21一侧的表面，在CF基板1设有第一电极11一侧表面的周边位置涂布框胶4，在真空环境下将所述CF基板1与TFT基板2组立贴合；
此时，所述反应型垂直取向有机硅材料32依靠自身的Cl原子与基板表面的-OH之间形成氢键作用力从而垂直排列于基板上，从而使得液晶分子31垂直于CF基板1与TFT基板2排列。
优选的，该反应型垂直取向有机硅材料32的结构式为：
Figure PCTCN2015098500-appb-000012
具体的，所述反应性单体33可以为聚合物垂直配向技术(PSVA)中所使用的任何反应性单体。
优选的，所述反应性单体33可以为以下四种化合物中的一种或多种：
Figure PCTCN2015098500-appb-000013
优选的，所述液晶混合物3中，所述反应型垂直取向有机硅材料32的含量为0.1～5wt％，所述反应性单体33的含量为0.01～0.1wt％。
具体的，所述第一电极11与第二电极21分别为公共电极与像素电极。
步骤2、如图3所示，对框胶4进行照度为65mW/cm2的UV光照射固化后，再进行120℃的高温固化制程，在框胶4的高温固化制程中，所述反应型垂直取向有机硅材料32中的-Si-Cl与CF基板1、及TFT基板2表面的-OH发生化学反应，脱去HCl形成-Si-O-键，从而使所述反应型垂直取向有机硅材料32以-Si-O-键的方式锚定在CF基板1与TFT基板2表面。
步骤3、如图4所示，通过第一电极11与第二电极21对液晶混合物3两侧施加15～25V的电压，使液晶分子31发生偏转。
步骤4、如图5所示，继续对液晶混合物3两侧施加15～25V的电压的同时，对液晶混合物3照射50～85mW/cm2的UV光，使得反应型垂直取向有机硅材料32与反应性单体33在CF基板1与TFT基板2表面聚合，以达到锚定液晶分子31的目的。
优选的，所述UV光的波长为365nm。
步骤5、如图6所示，停止对液晶混合物3两侧施加电压，使得液晶分子31产生预倾角。
本发明提供的一种液晶显示面板的制作方法，通过在未设置PI膜的CF基板与TFT基板之间夹设液晶混合物，所述液晶混合物包含液晶分子、反应型垂直取向有机硅材料、及反应性单体，从而在对框胶进行UV照射固化和高温固化时，所述反应型垂直取向有机硅材料中的-Si-Cl与基板表面的-OH发生化学反应，形成-Si-O-键，以化学键的方式锚定在基板表面，使得液晶分子垂直于CF基板与TFT基板排列，之后对液晶混合物施加电压，使得液晶分子偏转，最后对液晶混合物进行UV光照射，使得反应型垂直取向有机硅材料与反应性单体在CF基板与TFT基板表面聚合，从而达到锚定液晶分子的目的，释放电压后，液晶分子产生预倾角。与现有技术相比，本发明的液晶显示面板的制作方法简单，省去了PI膜制程，降低生产成本，提升产能，且液晶分子的配向效果良好。
综上所述，本发明提供一种反应型垂直取向有机硅材料及液晶显示面板的制作方法，所述反应型垂直取向有机硅材料的结构通式为A-R，其中，A指的是-SiCl3；R指的是具有5～20个C原子的直链或支链化的烷基、该烷基中的某个CH2基团被苯基、环烷基、-CONH-、-COO-、-O-CO-、-CO-或-CH＝CH-所取代的基团、或者该烷基中的某个H原子被F、或Cl原子取代的基团。在无PI膜的基板表面，该有机硅材料主要依靠自身的Cl原子与基板表面的-OH之间的氢键相互作用，以达到使得液晶分子垂直排列的目的；加热时，该有机硅材料中的-Si-Cl会与基板表面的-OH发生化学反应，形成-Si-O-键，以化学键的方式锚定在基板表面，可进一步提高锚定液晶分子的稳定性；从而使得采用该反应型垂直取向有机硅材料的液晶显示面板可以不使用配向膜，不仅可以简化TFT-LCD的制程，而且大大降低了TFT-LCD的生产成本；本发明的液晶显示面板的制作方法简单，省去了PI膜制程，降低生产成本，提升产能，且液晶分子的配向效果良好。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (15)

  1. 一种反应型垂直取向有机硅材料，其结构通式为A-R，其中，
    A指的是-SiCl3；
    R指的是具有5～20个C原子的直链或支链化的烷基、该烷基中的某个CH2基团被苯基、环烷基、-CONH-、-COO-、-O-CO-、-CO-或-CH＝CH-所取代的基团、或者该烷基中的某个H原子被F、或Cl原子取代的基团。
  2. 如权利要求1所述的反应型垂直取向有机硅材料，其中，该反应型垂直取向有机硅材料的结构式为：
    Figure PCTCN2015098500-appb-100001
  3. 一种液晶显示面板的制作方法，包括以下步骤：
    步骤1、提供一CF基板与TFT基板、及液晶混合物；
    其中，所述CF基板一侧的表面上设有第一电极，所述TFT基板一侧的表面上设有第二电极；
    所述液晶混合物包括液晶分子、反应型垂直取向有机硅材料、及反应性单体；其中，所述反应型垂直取向有机硅材料的结构通式为A-R，其中，A指的是-SiCl3；R指的是具有5～20个C原子的直链或支链化的烷基、该烷基中的某个CH2基团被苯基、环烷基、-CONH-、-COO-、-O-CO-、-CO-或-CH＝CH-所取代的基团、或者该烷基中的某个H原子被F、或Cl原子取代的基团；
    采用液晶滴下制程将所述液晶混合物滴注到TFT基板设有第二电极一侧的表面，在CF基板设有第一电极一侧表面的周边位置涂布框胶，在真空环境下将所述CF基板与TFT基板组立贴合；
    此时，所述反应型垂直取向有机硅材料依靠自身的Cl原子与基板表面的-OH之间形成氢键作用力从而垂直排列于基板上，从而使得液晶分子垂直于CF基板与TFT基板排列；
    步骤2、对框胶进行UV照射固化后，再进行高温固化制程，在框胶的高温固化制程中，所述反应型垂直取向有机硅材料中的-Si-Cl与CF基板、及TFT基板表面的-OH发生化学反应，脱去HCl形成-Si-O-键，从而使所述反应型垂直取向有机硅材料以-Si-O-键的方式锚定在CF基板与TFT基板表面；
    步骤3、通过第一电极与第二电极对液晶混合物两侧施加电压，使液晶分子发生偏转；
    步骤4、继续对液晶混合物两侧施加电压的同时，对液晶混合物照射UV光，使得反应型垂直取向有机硅材料与反应性单体在CF基板与TFT基板表面聚合，以达到锚定液晶分子的目的；
    步骤5、停止对液晶混合物两侧施加电压，使得液晶分子产生预倾角。
  4. 如权利要求3所述的液晶显示面板的制作方法，其中，所述反应型垂直取向有机硅材料的结构式为：
    Figure PCTCN2015098500-appb-100002
  5. 如权利要求3所述的液晶显示面板的制作方法，其中，所述反应性单体为以下四种化合物中的一种或多种：
    Figure PCTCN2015098500-appb-100003
  6. 如权利要求3所述的液晶显示面板的制作方法，其中，所述液晶混合物中，所述反应型垂直取向有机硅材料的含量为0.1～5wt％，所述反应性单体的含量为0.01～0.1wt％。
  7. 如权利要求3所述的液晶显示面板的制作方法，其中，所述第一电极与第二电极分别为公共电极与像素电极。
  8. 如权利要求3所述的液晶显示面板的制作方法，其中，所述步骤2中，采用照度为65mW/cm2的UV光对框胶进行UV照射固化，所述框胶的高温固化制程的温度为120℃。
  9. 如权利要求3所述的液晶显示面板的制作方法，其中，所述步骤3与步骤4中，对液晶混合物两侧施加的电压的大小为15～25V。
  10. 如权利要求3所述的液晶显示面板的制作方法，其中，所述步骤4中，对液晶显示面板照射的UV光的强度为50～85mW/cm2；所述UV光的波长为365nm。
  11. 一种液晶显示面板的制作方法，包括以下步骤：
    步骤1、提供一CF基板与TFT基板、及液晶混合物；
    其中，所述CF基板一侧的表面上设有第一电极，所述TFT基板一侧的表面上设有第二电极；
    所述液晶混合物包括液晶分子、反应型垂直取向有机硅材料、及反应性单体；其中，所述反应型垂直取向有机硅材料的结构通式为A-R，其中，A指的是-SiCl3；R指的是具有5～20个C原子的直链或支链化的烷基、该烷基中的某个CH2基团被苯基、环烷基、-CONH-、-COO-、-O-CO-、-CO-或-CH＝CH-所取代的基团、或者该烷基中的某个H原子被F、或Cl原子取代的基团；
    采用液晶滴下制程将所述液晶混合物滴注到TFT基板设有第二电极一侧的表面，在CF基板设有第一电极一侧表面的周边位置涂布框胶，在真空环境下将所述CF基板与TFT基板组立贴合；
    此时，所述反应型垂直取向有机硅材料依靠自身的Cl原子与基板表面的-OH之间形成氢键作用力从而垂直排列于基板上，从而使得液晶分子垂直于CF基板与TFT基板排列；
    步骤2、对框胶进行UV照射固化后，再进行高温固化制程，在框胶的高温固化制程中，所述反应型垂直取向有机硅材料中的-Si-Cl与CF基板、及TFT基板表面的-OH发生化学反应，脱去HCl形成-Si-O-键，从而使所述反应型垂直取向有机硅材料以-Si-O-键的方式锚定在CF基板与TFT基板表面；
    步骤3、通过第一电极与第二电极对液晶混合物两侧施加电压，使液晶分子发生偏转；
    步骤4、继续对液晶混合物两侧施加电压的同时，对液晶混合物照射UV光，使得反应型垂直取向有机硅材料与反应性单体在CF基板与TFT基 板表面聚合，以达到锚定液晶分子的目的；
    步骤5、停止对液晶混合物两侧施加电压，使得液晶分子产生预倾角；
    其中，所述步骤2中，采用照度为65mW/cm2的UV光对框胶进行UV照射固化，所述框胶的高温固化制程的温度为120℃；
    其中，所述步骤3与步骤4中，对液晶混合物两侧施加的电压的大小为15～25V；
    其中，所述步骤4中，对液晶显示面板照射的UV光的强度为50～85mW/cm2；所述UV光的波长为365nm。
  12. 如权利要求11所述的液晶显示面板的制作方法，其中，所述反应型垂直取向有机硅材料的结构式为：
    Figure PCTCN2015098500-appb-100004
  13. 如权利要求11所述的液晶显示面板的制作方法，其中，所述反应性单体为以下四种化合物中的一种或多种：
    Figure PCTCN2015098500-appb-100005
  14. 如权利要求11所述的液晶显示面板的制作方法，其中，所述液晶混合物中，所述反应型垂直取向有机硅材料的含量为0.1～5wt％，所述反应性单体的含量为0.01～0.1wt％。
  15. 如权利要求11所述的液晶显示面板的制作方法，其中，所述第一电极与第二电极分别为公共电极与像素电极。
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