CN107163952A - A kind of aligning agent for liquid crystal - Google Patents
A kind of aligning agent for liquid crystal Download PDFInfo
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- CN107163952A CN107163952A CN201710409220.3A CN201710409220A CN107163952A CN 107163952 A CN107163952 A CN 107163952A CN 201710409220 A CN201710409220 A CN 201710409220A CN 107163952 A CN107163952 A CN 107163952A
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- liquid crystal
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- aligning agent
- ether
- polyamic acid
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- 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
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- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
The invention discloses a kind of aligning agent for liquid crystal, including 180 200 parts of 62 70 parts of polyimides precursor liquid, 45 50 parts of polyamic acid, 15 24 parts of diamine components, 7 16 parts of cationic ion-exchange resin and solvent.Compared with prior art, the beneficial effects of the invention are as follows：The aligning agent for liquid crystal of the present invention can manufacture the uniform and good liquid crystal orientation film of film quality with high product yield rate, meanwhile, substrate yield rate when additionally aiding manufacture liquid crystal display cells is improved；This aligning agent for liquid crystal of the present invention, the liquid crystal display cells of the liquid crystal orientation film formed with the aligning agent for liquid crystal by the present invention, can be shown with high-quality；In addition, the film that polymer contained in the aligning agent for liquid crystal is formed, is also used as electronic material dielectric film.
Description
Technical field
The present invention relates to technical field of liquid crystal display, and in particular to a kind of aligning agent for liquid crystal.
Background technology
The material of the liquid crystal orientation film used in liquid crystal display device, it is known to polyimides, polyamide, polyamic acid,
The resin materials such as polyester.Especially, the liquid crystal orientation film formed by polyamic acid or polyimides, its heat resistance, mechanical strength
It is excellent with the compatibility of liquid crystal etc., used in most liquid crystal display device.
Wherein, polyamic acid is due to the dissolubility height to conventional organic solvent, so the system with liquid crystal display device
Aligning agent for liquid crystal can be readily derived by making the printing process in process, and cheap.However, formed by polyamic acid
The liquid crystal display device of liquid crystal orientation film is in long-play liquid crystal display device, and being deteriorated with liquid crystal orientation film causes voltage
The problem of conservation rate is low.In recent years, using LCD TV as representative, the design premises in the life-span of liquid crystal display device are more than 10
Year.Therefore, for the display of the holding high-quality in long-play liquid crystal display device, it is important that show steady for a long time
Fixed voltage retention is, it is necessary to improve the resistance to thermal reliability of alignment films.It is used as the resistance to thermally relieved of the raising alignment films being currently known
Property method, it is proposed that by the hybrid epoxidized compound in aligning agent for liquid crystal, increase the chemical stability of liquid crystal orientation film
Method.Or by using the polyamic acid for having imported the monomer with carboxylic acid, in the solidification of liquid crystal orientation film, formed intermolecular
Crosslinking, thus increase method of stability etc. of film.However, according to these technologies, it is necessary to it is a large amount of using epoxides or
Carboxylic acid is, it is necessary to further improvement.
The content of the invention
The present invention is intended to provide a kind of aligning agent for liquid crystal.
The present invention provides following technical scheme：
A kind of aligning agent for liquid crystal, including 62-70 parts of polyimides precursor liquid, 45-50 parts of polyamic acid, diamine components 15-
180-200 parts of 24 parts, 7-16 parts of cationic ion-exchange resin and solvent.
The diamines component at least includes the diamine compound represented by Formulas I, and the diamine compound has following structure
Formula：
Wherein m=0~2, R is the molecular radical containing following structure；
R=A-X1-B-Y；
Wherein A, B are each independently 0~2 Isosorbide-5-Nitrae-phenyl or Isosorbide-5-Nitrae-cyclohexyl containing 0~2 F, CL, OH；X、X1
It is each independently the linking group of unbranched alkoxy containing 0~4 methylene or containing 0~4 carbon number；Y is containing aerobic
Atom or the straight chained alkyl that carbon number without oxygen atom is 1~18, are either cholesteric alkoxy or are cholesteric alkenyloxy group.
The polyamic acid is obtained by tetracarboxylic dianhydride and the reaction of diamines and/or molecular weight regulator.
The solvent is METHYLPYRROLIDONE, gamma-butyrolacton, DMAC N,N' dimethyl acetamide, N, N- dimethyl formyls
Amine, glycol monoethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol methyl ether, glycol dimethyl ether, diglycol monotertiary
One or more mixtures in methyl ether ethyl ester.
Compared with prior art, the beneficial effects of the invention are as follows：The aligning agent for liquid crystal of the present invention can be with high product finished product
The uniform and good liquid crystal orientation film of rate manufacture film quality, meanwhile, additionally aid substrate finished product during manufacture liquid crystal display cells
Rate is improved；This aligning agent for liquid crystal of the present invention, the liquid of the liquid crystal orientation film formed with the aligning agent for liquid crystal by the present invention
Crystal display element, can be shown with high-quality；In addition, the film that polymer contained in the aligning agent for liquid crystal is formed,
It is also used as electronic material dielectric film.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
A kind of aligning agent for liquid crystal of embodiment 1, including 62 parts of polyimides precursor liquid, 45 parts of polyamic acid, diamine components 15
180 parts of part, 7 parts of cationic ion-exchange resin and solvent.
The diamines component at least includes the diamine compound represented by Formulas I, and the diamine compound has following structure
Formula：
Wherein m=0~2, R is the molecular radical containing following structure；
R=A-X1-B-Y；
Wherein A, B are each independently 0~2 Isosorbide-5-Nitrae-phenyl or Isosorbide-5-Nitrae-cyclohexyl containing 0~2 F, CL, OH；X、X1
It is each independently the linking group of unbranched alkoxy containing 0~4 methylene or containing 0~4 carbon number；Y is containing aerobic
Atom or the straight chained alkyl that carbon number without oxygen atom is 1~18, are either cholesteric alkoxy or are cholesteric alkenyloxy group.
The polyamic acid is obtained by tetracarboxylic dianhydride and the reaction of diamines and/or molecular weight regulator.
The solvent is METHYLPYRROLIDONE, gamma-butyrolacton, DMAC N,N' dimethyl acetamide, N, N- dimethyl formyls
Amine, glycol monoethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol methyl ether, glycol dimethyl ether, diglycol monotertiary
One or more mixtures in methyl ether ethyl ester.
A kind of aligning agent for liquid crystal of embodiment 2, including 62-70 parts of polyimides precursor liquid, 50 parts of polyamic acid, diamines group
200 parts of points 24 parts, 16 parts of cationic ion-exchange resin and solvent.
The diamines component at least includes the diamine compound represented by Formulas I, and the diamine compound has following structure
Formula：
Wherein m=0~2, R is the molecular radical containing following structure；
R=A-X1-B-Y；
Wherein A, B are each independently 0~2 Isosorbide-5-Nitrae-phenyl or Isosorbide-5-Nitrae-cyclohexyl containing 0~2 F, CL, OH；X、X1
It is each independently the linking group of unbranched alkoxy containing 0~4 methylene or containing 0~4 carbon number；Y is containing aerobic
Atom or the straight chained alkyl that carbon number without oxygen atom is 1~18, are either cholesteric alkoxy or are cholesteric alkenyloxy group.
The polyamic acid is obtained by tetracarboxylic dianhydride and the reaction of diamines and/or molecular weight regulator.
The solvent is METHYLPYRROLIDONE, gamma-butyrolacton, DMAC N,N' dimethyl acetamide, N, N- dimethyl formyls
Amine, glycol monoethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol methyl ether, glycol dimethyl ether, diglycol monotertiary
One or more mixtures in methyl ether ethyl ester.
A kind of aligning agent for liquid crystal of embodiment 3, including 62-70 parts of polyimides precursor liquid, 48 parts of polyamic acid, diamines group
190 parts of points 18 parts, 14 parts of cationic ion-exchange resin and solvent.
The diamines component at least includes the diamine compound represented by Formulas I, and the diamine compound has following structure
Formula：
Wherein m=0~2, R is the molecular radical containing following structure；
R=A-X1-B-Y；
Wherein A, B are each independently 0~2 Isosorbide-5-Nitrae-phenyl or Isosorbide-5-Nitrae-cyclohexyl containing 0~2 F, CL, OH；X、X1
It is each independently the linking group of unbranched alkoxy containing 0~4 methylene or containing 0~4 carbon number；Y is containing aerobic
Atom or the straight chained alkyl that carbon number without oxygen atom is 1~18, are either cholesteric alkoxy or are cholesteric alkenyloxy group.
The polyamic acid is obtained by tetracarboxylic dianhydride and the reaction of diamines and/or molecular weight regulator.
The solvent is METHYLPYRROLIDONE, gamma-butyrolacton, DMAC N,N' dimethyl acetamide, N, N- dimethyl formyls
Amine, glycol monoethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol methyl ether, glycol dimethyl ether, diglycol monotertiary
One or more mixtures in methyl ether ethyl ester.
It is obvious to a person skilled in the art that the invention is not restricted to the details of the one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than the explanation is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Although not each moreover, it will be appreciated that the present specification is described in terms of embodiments
Embodiment is only comprising an independent technical scheme, and this narrating mode of specification is only this area for clarity
Technical staff should be using specification as an entirety, and the technical solutions in the various embodiments may also be suitably combined, forms this
Art personnel may be appreciated other embodiment.
Claims (4)
1. a kind of aligning agent for liquid crystal, it is characterised in that including 62-70 parts of polyimides precursor liquid, 45-50 parts of polyamic acid, two
180-200 parts of 15-24 parts of amine component, 7-16 parts of cationic ion-exchange resin and solvent.
2. a kind of aligning agent for liquid crystal according to claim 1, it is characterised in that：The diamines component at least includes by Formulas I
The diamine compound of expression, the diamine compound has following structural formula：
Wherein m=0~2, R is the molecular radical containing following structure；
R=A-X1-B-Y；
Wherein A, B are each independently 0~2 Isosorbide-5-Nitrae-phenyl or Isosorbide-5-Nitrae-cyclohexyl containing 0~2 F, CL, OH；X, X1 are each
It independently is the linking group of unbranched alkoxy containing 0~4 methylene or containing 0~4 carbon number；Y is to contain oxygen atom
Or the straight chained alkyl that the carbon number without oxygen atom is 1~18, it is either cholesteric alkoxy or is cholesteric alkenyloxy group.
3. a kind of aligning agent for liquid crystal according to claim 1, it is characterised in that：The polyamic acid is by tetracarboxylic dianhydride
Obtained with diamines and/or molecular weight regulator reaction.
4. a kind of aligning agent for liquid crystal according to claim 1, it is characterised in that：The solvent is N- methyl -2- pyrrolidines
Ketone, gamma-butyrolacton, DMAC N,N' dimethyl acetamide, N,N-dimethylformamide, glycol monoethyl ether, ethylene glycol monoethyl ether, second two
One or more mixtures in alcohol monobutyl ether, ethylene glycol methyl ether, glycol dimethyl ether, diethylene glycol monomethyl ether ethyl ester.
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| CN201710409220.3A CN107163952A (en) | 2017-06-02 | 2017-06-02 | A kind of aligning agent for liquid crystal |
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| CN201710409220.3A CN107163952A (en) | 2017-06-02 | 2017-06-02 | A kind of aligning agent for liquid crystal |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6013760A (en) * | 1997-05-29 | 2000-01-11 | Korea Research Institute Of Chemical Technology | Soluble polyimide resin for liquid crystal alignment layer and process of preparation of the same |
| CN103571500A (en) * | 2012-07-18 | 2014-02-12 | 奇美实业股份有限公司 | Liquid crystal alignment agent, liquid crystal alignment film and liquid crystal display element |
| CN105087018A (en) * | 2014-07-21 | 2015-11-25 | 烟台德盈电子材料有限公司 | Liquid crystal alignment agent, liquid crystal alignment film and liquid crystal display element |
| CN105315463A (en) * | 2014-07-15 | 2016-02-10 | 捷恩智株式会社 | Diamin, polyamic acid or derivative thereof, liquid crystal aligning agent, liquid crystal aligning film and liquid crystal display element |
| CN106190177A (en) * | 2016-07-14 | 2016-12-07 | 中节能万润股份有限公司 | A kind of aligning agent for liquid crystal, liquid crystal orientation film and liquid crystal display cells |
-
2017
- 2017-06-02 CN CN201710409220.3A patent/CN107163952A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6013760A (en) * | 1997-05-29 | 2000-01-11 | Korea Research Institute Of Chemical Technology | Soluble polyimide resin for liquid crystal alignment layer and process of preparation of the same |
| CN103571500A (en) * | 2012-07-18 | 2014-02-12 | 奇美实业股份有限公司 | Liquid crystal alignment agent, liquid crystal alignment film and liquid crystal display element |
| CN105315463A (en) * | 2014-07-15 | 2016-02-10 | 捷恩智株式会社 | Diamin, polyamic acid or derivative thereof, liquid crystal aligning agent, liquid crystal aligning film and liquid crystal display element |
| CN105087018A (en) * | 2014-07-21 | 2015-11-25 | 烟台德盈电子材料有限公司 | Liquid crystal alignment agent, liquid crystal alignment film and liquid crystal display element |
| CN106190177A (en) * | 2016-07-14 | 2016-12-07 | 中节能万润股份有限公司 | A kind of aligning agent for liquid crystal, liquid crystal orientation film and liquid crystal display cells |
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Application publication date: 20170915 |
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