CN108048114A - Auto-orientation liquid crystal adjuvant, auto-orientation liquid crystal compound and its application - Google Patents
Auto-orientation liquid crystal adjuvant, auto-orientation liquid crystal compound and its application Download PDFInfo
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- CN108048114A CN108048114A CN201711462956.3A CN201711462956A CN108048114A CN 108048114 A CN108048114 A CN 108048114A CN 201711462956 A CN201711462956 A CN 201711462956A CN 108048114 A CN108048114 A CN 108048114A
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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
- C09K19/56—Aligning agents
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- 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
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Abstract
The invention discloses a kind of auto-orientation liquid crystal adjuvant, including adjuvant I as shown in Equation 1 and adjuvant II as shown in Equation 2.The invention also discloses the auto-orientation liquid crystal compounds for including above-mentioned auto-orientation liquid crystal adjuvant.The auto-orientation liquid crystal compound can be used in making liquid crystal display panel, and the invention also discloses make the method for liquid crystal display panel based on above-mentioned auto-orientation liquid crystal compound.Auto-orientation liquid crystal compound according to the present invention can not only realize liquid crystal molecule the alignment effect of auto-orientation, and relatively traditional liquid crystal display panel saves PI sections of processing procedures, simplifies technique, reduces cost, reduces pollution and harm；And the reliability of the liquid crystal display panel of acquisition can be improved.
Description
Technical field
The invention belongs to technical field of liquid crystal display, it relates in particular to a kind of auto-orientation liquid crystal adjuvant, including this from
The auto-orientation liquid crystal compound of aligned liquid-crystal adjuvant and the auto-orientation liquid crystal compound answering in liquid crystal display panel
With.
Background technology
On CF substrates and TFT substrate in liquid crystal display (LCD), there are thin film material layer, main function respectively
It is that liquid crystal (LC) molecule between CF substrates and TFT substrate is made to arrange in certain direction, is commonly referred to as alignment film, often
With polyimides (PI) material.This alignment film is broadly divided into friction matching type PI materials and light alignment-type PI materials, still, nothing
Which kind of alignment materials can all there be the shortcomings that respective by；First, it is residual to be easy to cause dust particles, electrostatic for friction matching type PI materials
Stay, brush mark the problems such as, so as to reduce process yields, although light alignment-type PI materials can be to avoid the above problem, due to material
Characteristic is limited, and heat resistance and resistance to ag(e)ing are bad, while the ability of its anchoring LC molecule is also weaker, so as to influence the product of panel
Matter；Secondly, PI materials inherently have highly polar and high-hydroscopicity property, therefore its storage and transport process are be easy to cause
Go bad and cause orientation uneven, and PI material prices are expensive, and the technique to form a film on TFT-LCD is also complex, causes face
Plate cost improves.
Under normal conditions, above-mentioned alignment film has first layer and the second layer two layers totally, this double-layer structure acts on not in an lcd
Together；First layer is mainly hydrophobic Type of Collective object, and effect is so that LC molecules have vertical orientated, and second with homogeneous
The characteristics of property, adherence and stability, mainly prevent that the foreign ion in CF substrates and TFT substrate is diffused into LC layers, together
When can also accelerate the release of foreign ion in LC layers.
In addition, PI materials need first to prepare PI solution in film forming procedure, a large amount of N- methyl pyrroles are also contained in the PI solution
Pyrrolidone (NMP) solvent, therefore, the processing procedure for forming alignment film be a high energy consumption, extremely not environmentally, easy do harm to huamn body
Process；Further, since both alignment layers uniformity, lack apply, not viscous and foreign matter the problems such as, can also cause damages to product yield,
The wasting of resources is caused to be improved with product cost.
It to sum up, if can be in the case where saving PI films in TFT-LCD, moreover it is possible to make LC molecular ordered arrangements, this will
Substantially reduce the cost of production TFT-LCD.
The content of the invention
To solve the above-mentioned problems of the prior art, the present invention provides a kind of auto-orientation liquid crystal adjuvants, this is asked for
Auto-orientation liquid crystal compound is mixed to form to liquid crystal adjuvant and liquid crystal molecule, to reach the vertical orientated mesh of control LC molecules
, two layers of polymer layer being formed simultaneously can keep the higher reliability of the liquid crystal display panel obtained.
In order to reach foregoing invention purpose, present invention employs following technical solutions：
A kind of auto-orientation liquid crystal adjuvant, including adjuvant I as shown in Equation 1 and adjuvant II as shown in Equation 2：
Wherein, in the formula 1, A1Group is selected from connecting key, benzene, naphthalene, biphenyl group, cycloalkane group, benzene and cycloalkanes
The second group or the benzene, naphthalene, biphenyl group, cycloalkanes that the first group that hydrocarbon is connected, biphenyl group are connected with cycloalkane group
H atom in hydrocarbyl group, the first group, the second group is by F, Cl, Br, I ,-CN ,-NO2,-C (=O) H, alkane substitute acquisition
The 3rd group in any one；Sp1Group is selected from the alkylidene of connecting key, the alkylidene of C1~C5 or the C1~C5
In-CH2- by-O- ,-S- ,-CO- ,-CO-O- ,-O-CO- ,-O-CO-O- ,-CH2- O- ,-CH=CH- ,-CF=CF- ,-C ≡
C- ,-CH=CH-COO- ,-OCO-CH=CH- substitute at least one of the 4th group of acquisition；P groups are selected from such as formula 11
~15 any shown structures：
D-Sp2-A2-Sp2-R 2；
Wherein, in the formula 2, A2Group is selected from connecting key, benzene, naphthalene, biphenyl group, cycloalkane group, benzene and cycloalkanes
The 6th group or the benzene, naphthalene, biphenyl group, cycloalkanes that the 5th group that hydrocarbon is connected, biphenyl group are connected with cycloalkane group
H atom in hydrocarbyl group, the 5th group, the 6th group is by F, Cl, Br, I ,-CN ,-NO2,-C (=O) H, alkane substitute acquisition
The 7th group in any one；Group D coexists for polymerizable groups or the polymerizable groups and polar group, described
Polymerizable groups have the structure as shown in formula 21~25, and the polar group is amido ,-OH ,-COOH ,-SH ,-CN；Group R
- CH in the alkane with C3~C20 or the alkane with C3~C202- by-O- ,-CONH- ,-COO- ,-O-
CO- ,-CO- ,-CH=CH- are substituted in the 8th group or the alkane and/or the 8th group with C3~C20 of acquisition
H atom any one in the 9th group of acquisition is substituted by F, Cl；Group Sp2Alkylene selected from connecting key, C1~C5
- CH in the alkylidene of base or the C1~C52- by-O- ,-S- ,-CO- ,-CO-O- ,-O-CO- ,-O-CO-O- ,-CH2-
O- ,-CH=CH- ,-CF=CF- ,-C ≡ C- ,-CH=CH-COO- ,-OCO-CH=CH- are substituted in the tenth group of acquisition
It is at least one；
Further, in the formula 1, the biphenyl group is biphenyl；First group has as shown in Equation 16
Structure, second group have structure as shown in Equation 17：
Further, in the formula 2, the biphenyl group is biphenyl；5th group has as shown in Equation 21
Structure, the 6th group have structure as shown in Equation 22：
Further, it is described if group D coexists for the polymerizable groups and the polar group in the formula 2
Polymerizable groups and the polar group are connected to the group Sp in turn2On or the polymerizable groups and the polar group
Group passes through the group Sp respectively2It is connected to the group A2On.
Further, the adjuvant I has the structure as shown in formula 1-1~1-4 is any：
Further, the adjuvant II has the structure as shown in formula 2-1~2-4 is any：
Another object of the present invention is to provide a kind of auto-orientation liquid crystal compound, including liquid crystal molecule and as above any institute
The auto-orientation liquid crystal adjuvant stated.
Further, in the auto-orientation liquid crystal compound, the mass percent of the auto-orientation liquid crystal adjuvant is not
More than 5%.
Another object of the present invention, which also resides in, provides a kind of production method of liquid crystal display panel, comprises the following steps：
S1, a upper substrate, a lower substrate and auto-orientation liquid crystal compound as claimed in claim 7 or 8 are provided；
S2, after being coated with the auto-orientation liquid crystal compound on the upper substrate and/or the lower substrate, by the upper base
Plate and the lower substrate carry out, to box, forming liquid crystal cell；The adjuvant I is anchored on the surface of the upper substrate, lower substrate,
The adjuvant II is connected to the free end of the adjuvant I；
S3, voltage is applied in the both sides of the liquid crystal cell, after the liquid crystal molecule in the liquid crystal cell deflects, simultaneously
A ultraviolet light irradiation is carried out to the liquid crystal cell, the polymerization of adjuvant I is respectively deposited at the upper substrate and the lower base
Form the first polymer layer on the opposite surface of plate, the polymerization of adjuvant II, which is respectively deposited on first polymer layer, forms the
Dimerization layer；
S4, removal voltage, then secondary ultraviolet light is carried out to the liquid crystal cell, form liquid crystal display panel.
Further, in the step S3, voltage strength is 13V~25V, and the energy of a ultraviolet light irradiation is
85mW/cm2~100mW/cm2, irradiation time is 20min~30min；In the step S4, the energy of secondary ultraviolet light irradiation
For 85mW/cm2~100mW/cm2, irradiation time is 90min~120min.
The present invention is by will have adjuvant I shown in above-mentioned formula 1 and adjuvant II as shown in Equation 2 to be mutually mixed acquisition
Auto-orientation liquid crystal adjuvant, and the auto-orientation liquid crystal adjuvant and liquid crystal molecule are mixed to form auto-orientation liquid crystal compound, and
Liquid crystal display panel is made with the auto-orientation liquid crystal compound, with following
Advantageous effect：
(1)-OH isopolarities the group in the auto-orientation liquid crystal adjuvant can be acted on hydrophilic substrate surface, so as to
The surface of substrate is anchored on, so as to realize alignment effect to liquid crystal molecule；Relatively traditional liquid crystal display panel as a result, can use
The making of the generation wherein both alignment layers of polyimide material, saves PI sections of processing procedures, simplifies technique, reduces cost, reduces pollution and danger
Evil；
(2) the auto-orientation liquid crystal adjuvant includes adjuvant I and adjuvant II, so after photo-irradiation treatment, you can successively
The polymer layer of two layers of not same-action is formed in substrate surface, containing polytype polar group and can be gathered simultaneously in adjuvant I
Polymerizable group, it is therefore intended that adsorb in substrate surface so that substrate surface is rich in polar group, and only containing can in adjuvant II
Aggretion type group, purpose is intermolecular interaction occurs with adjuvant I, and relies on the rigid radical of its own (i.e.
Group A2) make liquid crystal molecule vertical orientated, so as to improve the reliability of the liquid crystal display panel of acquisition.
Specific embodiment
Hereinafter, detailed description of the present invention in future embodiment.However, it is possible to implement this hair in many different forms
It is bright, and the present invention should not be construed as limited to the specific embodiment illustrated here.On the contrary, provide these embodiments be for
Explanation the principle of the present invention and its practical application, so that others skilled in the art are it will be appreciated that the present invention's is various
Embodiment and the various modifications for being suitable for specific intended application.
It will be appreciated that although term " first ", " second " etc. can be used to describe various substances herein, these
Substance should not be limited by these terms.These terms are only used to distinguish a substance with another substance.
The present invention provides a kind of auto-orientation liquid crystal adjuvant, including uniformly mixed adjuvant I and adjuvant II.
Specifically, adjuvant I has structure as shown in Equation 1, and adjuvant II has structure as shown in Equation 2：
D-Sp2-A2-Sp2-R 2
More specifically, in formula 1, A1Group is selected from connecting key, benzene, naphthalene, biphenyl group, cycloalkane group, benzene and ring
In the second group that the first group that alkane is connected, biphenyl group are connected with cycloalkane group any one or selected from benzene,
H atom in naphthalene, biphenyl group, cycloalkane group, the first group, the second group is by F, Cl, Br, I ,-CN ,-NO2,-C (=O)
H, alkane substitutes any one in the 3rd group of acquisition；Sp1Group selected from connecting key, C1~C5 alkylidene in appoint
- CH in meaning one kind or the alkylidene selected from C1~C52- by-O- ,-S- ,-CO- ,-CO-O- ,-O-CO- ,-O-CO-O- ,-
CH2- O- ,-CH=CH- ,-CF=CF- ,-C ≡ C- ,-CH=CH-COO- ,-OCO-CH=CH- substitute the 4th group of acquisition
At least one of；P groups are selected from the structure as shown in formula 11~15 is any：
Preferably, in formula 1, biphenyl group is biphenyl；First group has structure as shown in Equation 16, the second group
With structure as shown in Equation 17：
And in formula 2, A2Group is selected from connecting key, benzene, naphthalene, biphenyl group, cycloalkane group, benzene and is connected with cycloalkane
In the 6th group that 5th group, biphenyl group are connected with cycloalkane group any one or selected from benzene, naphthalene, biphenyl group,
H atom in cycloalkane group, the 5th group, the 6th group is by F, Cl, Br, I ,-CN ,-NO2,-C (=O) H, alkane substituted
Obtain the 7th group in any one；Group D can be that polymerizable groups or polymerizable groups and polar group coexist,
Its polar groups is amido ,-OH ,-COOH ,-SH ,-CN, and polymerizable groups have the structure as shown in formula 21~25：
Group R is selected from the-CH in the alkane with C3~C20 or the alkane with C3~C202- quilt-O- ,-
CONH- ,-COO- ,-O-CO- ,-CO- ,-CH=CH- substitute the 8th group of acquisition or the alkane with C3~C20
And/or the 8th H atom in group is substituted any one in the 9th group of acquisition by F, Cl；Group Sp2Selected from connection
- CH in the alkylidene of key, the alkylidene of C1~C5 or the C1~C52- by-O- ,-S- ,-CO- ,-CO-O- ,-O-CO- ,-
O-CO-O-、-CH2- O- ,-CH=CH- ,-CF=CF- ,-C ≡ C- ,-CH=CH-COO- ,-OCO-CH=CH- substitute acquisition
At least one of the tenth group.
Preferably, in formula 2, biphenyl group is biphenyl；5th group has structure as shown in Equation 26, the 6th group
With structure as shown in Equation 27：
What deserves to be explained is in formula 2, if group D coexists for polymerizable groups and polar group, then polymerizable groups
Group Sp can be connected in turn with polar group2On or polymerizable groups and polar group pass through group Sp respectively2It is connected to
Group A2On.
In this way, adjuvant I is preferably with following structures as shown in formula 1-1~1-4 is any：
And II adjuvant I of adjuvant is preferably with following structures as shown in formula 2-1~2-4 is any：
In this way, the present invention above-mentioned auto-orientation liquid crystal adjuvant in adjuvant I in simultaneously contain polytype polarity
Group and polymerizable type group, can in use adsorb in substrate surface so that substrate surface is rich in polar group, and auxiliary
Only intermolecular interaction can occur with adjuvant I, and rely on the rigid base of its own containing polymerizable type group in auxiliary agent II
Group (i.e. group A2) make liquid crystal molecule vertical orientated, that is, realize the purpose of liquid crystal molecule auto-orientation.
Above-mentioned auto-orientation liquid crystal adjuvant provided by the invention can be asked for by being mutually mixed acquisition one kind with liquid crystal molecule
To liquid crystal compound.
Preferably, in the auto-orientation liquid crystal compound, the mass percent of auto-orientation liquid crystal adjuvant is no more than 5%.
Mass percent such as liquid crystal molecule, adjuvant I and adjuvant II is respectively 98%, 0.5%, 1.5%, is not arranged one by one herein
It lifts.
Above-mentioned auto-orientation liquid crystal compound provided by the invention can be used to during making liquid crystal display panel, so as to
Obtain the liquid crystal display panel without PI films.
The production method of the liquid crystal display panel comprises the following steps：
In step sl, a upper substrate, a lower substrate and above-mentioned auto-orientation liquid crystal compound are provided.
From the point of view of specific, the upper substrate of selection and the size of lower substrate are 10cm × 10cm.
In step s 2, after being coated with auto-orientation liquid crystal compound on upper substrate and/or lower substrate, by upper substrate and lower base
Plate carries out, to box, forming liquid crystal cell.
Specifically, auto-orientation liquid crystal compound can be added drop-wise to surface or the lower substrate of upper substrate by ODF methods
Surface, then in upper substrate or the surface applying paste of lower substrate, and in peripheral applying conductive glue；Under vacuum conditions, will
Upper substrate and lower substrate fit together, and fluid sealant is cured, and curing mode is cured using heat cure or ultraviolet light；This
When, in liquid crystal cell, adjuvant I is anchored on substrate surface by the polar group of itself, and adjuvant II then relies on itself
Polar group and in adjuvant I free end polar group occur intermolecular force and mutually adsorb, in adjuvant II
Non-polar group then can liquid crystal molecule be arranged vertically.
In step s3, voltage is applied in the both sides of liquid crystal cell, after the liquid crystal molecule in liquid crystal cell deflects, simultaneously
Carry out the irradiation of ultraviolet light to liquid crystal cell, adjuvant I, which polymerize, is respectively deposited at shape on upper substrate and the opposite surface of lower substrate
Into the first polymer layer, adjuvant II polymerize forms the second polymer layer on the first polymer layer respectively.
Specifically, voltage strength control is 13V~25V, and the energy of a ultraviolet light irradiation is 85mW/cm2~
100mW/cm2, irradiation time is 20min~30min.
In step s 4, voltage is removed, then secondary ultraviolet light is carried out to liquid crystal cell, forms liquid crystal display panel.
Specifically, the energy of secondary ultraviolet light irradiation is 85mW/cm2~100mW/cm2, irradiation time for 90min~
120min；In this way, II abundant aggregation deposition of remaining part adjuvant I and/or adjuvant in liquid crystal cell can be made.
Illustrate above-mentioned auto-orientation liquid crystal adjuvant of the invention hereinafter with reference to specific embodiment and asked for comprising this
To the advantageous effect of the auto-orientation liquid crystal compound of liquid crystal adjuvant.
Embodiment 1
In the present embodiment, auto-orientation liquid crystal adjuvant is including the adjuvant I as shown in above formula 1-1 and such as above formula 2-1 institutes
The adjuvant II shown；In the auto-orientation liquid crystal compound formed by the auto-orientation liquid crystal adjuvant, liquid crystal molecule, I and of adjuvant
The mass percent of adjuvant II is respectively 98%, 0.5% and 1.5%.
Embodiment 2
In the present embodiment, auto-orientation liquid crystal adjuvant is including the adjuvant I as shown in above formula 1-2 and such as above formula 2-2 institutes
The adjuvant II shown；In the auto-orientation liquid crystal compound formed by the auto-orientation liquid crystal adjuvant, liquid crystal molecule, I and of adjuvant
The mass percent of adjuvant II is respectively 98%, 0.5% and 1.5%.
The liquid crystal display panel that two kinds of auto-orientation liquid crystal compounds are formed in above-described embodiment 1 and embodiment 2 respectively
Effect is tested, and test result is as shown in table 1.
The effect for the liquid crystal display panel that the auto-orientation liquid crystal compound of 1 embodiment 1,2 of table is formed
So as can be seen that the liquid crystal display panel reality that the auto-orientation liquid crystal compound of base the embodiment of the present invention is formed
Show without PI films, and with good display effect and electric property.
Although the present invention has shown and described with reference to specific embodiment, it should be appreciated by those skilled in the art that：
In the case where not departing from the spirit and scope of the present invention limited by claim and its equivalent, can carry out herein form and
Various change in details.
Claims (10)
1. a kind of auto-orientation liquid crystal adjuvant, which is characterized in that including adjuvant I as shown in Equation 1 and auxiliary as shown in Equation 2
Agent II：
Wherein, in the formula 1, A1Group is selected from connecting key, benzene, naphthalene, biphenyl group, cycloalkane group, benzene and is connected with cycloalkane
The first group, the second group for being connected with cycloalkane group of biphenyl group or the benzene, naphthalene, biphenyl group, cycloalkyl group
H atom in group, the first group, the second group is by F, Cl, Br, I ,-CN ,-NO2,-C (=O) H, alkane substitute the of acquisition
Any one in three groups；Sp1In alkylidene of the group selected from connecting key, the alkylidene of C1~C5 or the C1~C5-
CH2- by-O- ,-S- ,-CO- ,-CO-O- ,-O-CO- ,-O-CO-O- ,-CH2- O- ,-CH=CH- ,-CF=CF- ,-C ≡ C- ,-CH
=CH-COO- ,-OCO-CH=CH- substitutes at least one of the 4th group of acquisition；P groups are selected from such as formula 11~15
Structure shown in one：
D-Sp2-A2-Sp2-R 2；
Wherein, in the formula 2, A2Group is selected from connecting key, benzene, naphthalene, biphenyl group, cycloalkane group, benzene and is connected with cycloalkane
The 5th group, the 6th group that is connected with cycloalkane group of biphenyl group or the benzene, naphthalene, biphenyl group, cycloalkyl group
H atom in group, the 5th group, the 6th group is by F, Cl, Br, I ,-CN ,-NO2,-C (=O) H, alkane substitute the of acquisition
Any one in seven groups；Group D coexists for polymerizable groups or the polymerizable groups and polar group, described to gather
Group is closed with the structure as shown in formula 21~25, the polar group is amido ,-OH ,-COOH ,-SH ,-CN；Group R is selected from
- CH in alkane or the alkane with C3~C20 with C3~C202- by-O- ,-CONH- ,-COO- ,-O-CO- ,-
CO- ,-CH=CH- substitute acquisition the 8th group or the alkane and/or the 8th group with C3~C20 in H it is former
Son is substituted any one in the 9th group of acquisition by F, Cl；Group Sp2Selected from connecting key, C1~C5 alkylidene or
- CH in the alkylidene of the C1~C52- by-O- ,-S- ,-CO- ,-CO-O- ,-O-CO- ,-O-CO-O- ,-CH2- O- ,-CH=
CH- ,-CF=CF- ,-C ≡ C- ,-CH=CH-COO- ,-OCO-CH=CH- substitute at least one in the tenth group of acquisition
Kind；
2. auto-orientation liquid crystal adjuvant according to claim 1, which is characterized in that in the formula 1, the biphenyl group
For biphenyl；First group has structure as shown in Equation 16, and second group has structure as shown in Equation 17：
3. auto-orientation liquid crystal adjuvant according to claim 1, which is characterized in that in the formula 2, the biphenyl group
For biphenyl；5th group has structure as shown in Equation 26, and the 6th group has structure as shown in Equation 27：
4. auto-orientation liquid crystal adjuvant according to claim 1, which is characterized in that in the formula 2, if group D is institute
It states polymerizable groups and the polar group coexists, then the polymerizable groups and the polar group are connected to the base in turn
Group Sp2On or the polymerizable groups and the polar group pass through the group Sp respectively2It is connected to the group A2On.
5. auto-orientation liquid crystal adjuvant according to claim 1 or 2, which is characterized in that the adjuvant I has such as formula 1-
Structure shown in 1~1-4 is any：
6. according to any auto-orientation liquid crystal adjuvant in claim 1,3 or 4, which is characterized in that the adjuvant II has
Structure shown in any just like formula 2-1~2-4：
7. a kind of auto-orientation liquid crystal compound, which is characterized in that including liquid crystal molecule and as described in claim 1-6 is any from
Aligned liquid-crystal adjuvant.
8. auto-orientation liquid crystal compound according to claim 7, which is characterized in that in the auto-orientation liquid crystal compound
In, the mass percent of the auto-orientation liquid crystal adjuvant is no more than 5%.
9. a kind of production method of liquid crystal display panel, which is characterized in that comprise the following steps：
S1, a upper substrate, a lower substrate and auto-orientation liquid crystal compound as claimed in claim 7 or 8 are provided；
S2, after being coated with the auto-orientation liquid crystal compound on the upper substrate and/or the lower substrate, by the upper substrate and
The lower substrate carries out, to box, forming liquid crystal cell；The adjuvant I is anchored on the surface of the upper substrate, lower substrate, described
Adjuvant II is connected to the free end of the adjuvant I；
S3, voltage is applied in the both sides of the liquid crystal cell, after the liquid crystal molecule in the liquid crystal cell deflects, while to institute
It states liquid crystal cell and carries out a ultraviolet light irradiation, the polymerization of adjuvant I is respectively deposited at the upper substrate and the lower substrate phase
To surface on form the first polymer layer, the polymerization of adjuvant II is respectively deposited on first polymer layer that form second poly-
Close layer；
S4, removal voltage, then secondary ultraviolet light is carried out to the liquid crystal cell, form liquid crystal display panel.
10. production method according to claim 9, which is characterized in that in the step S3, voltage strength for 13V~
25V, the energy of a ultraviolet light irradiation is 85mW/cm2~100mW/cm2, irradiation time is 20min~30min；
In the step S4, the energy of secondary ultraviolet light irradiation is 85mW/cm2~100mW/cm2, irradiation time for 90min~
120min。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711462956.3A CN108048114A (en) | 2017-12-28 | 2017-12-28 | Auto-orientation liquid crystal adjuvant, auto-orientation liquid crystal compound and its application |
| PCT/CN2018/072142 WO2019127649A1 (en) | 2017-12-28 | 2018-01-10 | Self-aligned liquid crystal adjuvant, self-aligned liquid crystal mixture, and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711462956.3A CN108048114A (en) | 2017-12-28 | 2017-12-28 | Auto-orientation liquid crystal adjuvant, auto-orientation liquid crystal compound and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108048114A true CN108048114A (en) | 2018-05-18 |
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Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Applicant after: TCL Huaxing Photoelectric Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Applicant before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
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Application publication date: 20180518 |