CN106597702A - Manufacturing method for liquid crystal device, and liquid crystal device manufactured by same - Google Patents
Manufacturing method for liquid crystal device, and liquid crystal device manufactured by same Download PDFInfo
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- CN106597702A CN106597702A CN201611126721.2A CN201611126721A CN106597702A CN 106597702 A CN106597702 A CN 106597702A CN 201611126721 A CN201611126721 A CN 201611126721A CN 106597702 A CN106597702 A CN 106597702A
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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
-
- 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
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
-
- 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
-
- 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
- G02F1/133723—Polyimide, polyamide-imide
-
- 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
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
- G02F1/13347—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals working in reverse mode, i.e. clear in the off-state and scattering in the on-state
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Liquid Crystal (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Abstract
The invention provides a manufacturing method for a liquid crystal device, and a liquid crystal device manufactured by the method, and the method can prevent a problem of sedimentation of interstitials, so that the liquid crystal device has preferable optical property. The method comprises: providing a first substrate; coating an alignment solution on the first substrate, wherein the alignment solution contains a liquid crystal alignment treatment agent, a solvent, and a plurality of interstitial; solidifying the alignment solution to form a first alignment layer; coating a liquid crystal solution on the first alignment layer, to form a liquid crystal layer; providing a second substrate; and fitting the second substrate on the first substrate.
Description
Technical field
The present invention is related to a kind of manufacture method of liquid-crystal apparatus and the thus liquid-crystal apparatus manufactured by method, and especially
Relate to one kind can avoid spacer (Spacer) skewness or sedimentation liquid-crystal apparatus manufacture method and thus method
Manufactured liquid-crystal apparatus.
Background technology
With the increase in demand to intelligent window, the application of various smooth adjusting meanss or light shifter is therefore and therewith
Development.In the prior art, existing utilization high polymer dispersed liquid crystal (Polymer Dispersed Liquid Crystal,
PDLC) or macromolecule network type liquid crystal (Polymer Network Liquid Crystal, PNLC) characteristic liquid crystal light modulation
Device, it changes the characteristic of ordered state using liquid crystal molecule in electric field action incision, makes light adjusting means switch to liquid crystal molecule
Opaque state of the clear state or liquid crystal molecule of marshalling in dispersion shape.Such liquid crystal light modulation device, in possess electrode one
Constitute being provided with liquid crystal layer between substrate, by applied voltage, to control the ordered state and then switch light modulation device of liquid crystal
Saturating state and dark-state.This kind of liquid crystal light modulation device has the advantages that switching time is quick, disguised good, and it is except adopting glue
Close glass-encapsulated as building materials outside, also can adopt flexible base plate encapsulate be affixed on outside film shape existing window, fall to be formed
The lighting equipments such as ground window, the configuration without changing building script.
In using the liquid crystal light modulation device of PDLC or PNLC in the past, normal type liquid crystal light modulation dress can be divided into according to mode of operation
Put and reversal liquid crystal light modulation device.Normal type liquid crystal light modulation device can be because liquid crystal molecule be towards randomly when without applied voltage
Direction, becomes nebulousurine dark-state at random or mist state, can pass light through and become because liquid crystal is in direction of an electric field assortment during applied voltage
Saturating state.However, normal type liquid crystal light modulation device is when in use, in order to maintain the transparent appearance for passing light through, need usually additional
Voltage, therefore in as with the more application of saturating state use occasion, such as, as during the use of window, meeting is because expending more electricity
Power, and increase use cost.
With respect to normal type liquid crystal light modulation device, reversal liquid crystal light modulation device is saturating state when without applied voltage, outer power-up
Then become the mist state of nebulousurine shape at random after pressure.Because general reversal liquid crystal light modulation device is by conductive indium stannum of the two panels containing both alignment layers
The liquid crystal of folder 6-10 microns, ultraviolet light photopolymerization resin bed and spacer are formed in the middle of oxide glass (ITO Glass), are added
Plus though resin increases can penetrance of the liquid crystal light modulation device in saturating state, when increasing resin content, liquid crystal light modulation device
Switch to the driving voltage needed for mist state also can be bigger.If however, reducing resin content, when volume to volume production is carried out, matching somebody with somebody
The spacer being placed between two panels electroconductive indium tin oxide glass because not fixed, and can easily cause spacer and settle in processing procedure
Or the phenomenon of uneven distribution and then impact outward appearance.
To improve the problem that spacer is settled in processing procedure, it is known in the art that photolithographic processes can be used
(Photolithography process) is making photosensitive type gap (photo-spacer), but photosensitive type gap
(photo-spacer) making step need to comprising coating, exposure, development, baking etc. step, its processing procedure is loaded down with trivial details, production cost compared with
Height, and photosensitive type gap is not particularly suited for volume to volume processing procedure, it is impossible to carry out the quick production of big fabric width.
Therefore, a kind of manufacture method of the liquid-crystal apparatus of novelty is needed exist for, it is applicable to large-area volume to volume
(roll-to-roll) processing procedure, and spacer problem pockety can be avoided, and then preferably optical property is provided.
The content of the invention
The present invention provides a kind of novel manufacture method for liquid crystal device, because the spacer being configured between substrate is matched somebody with somebody by solidification
It is fixed in both alignment layers when forming both alignment layers to solution, therefore spacer skewness can be prevented effectively from or spacer sedimentation occurs
Phenomenon, and then make liquid-crystal apparatus possess preferably optical property.
A kind of manufacture method of liquid-crystal apparatus of offer of one mesh of the present invention, its step is included：There is provided conductive with first
The first substrate of layer；Coating orientation solution on aforementioned first substrate, wherein aforementioned orientation solution comprising LCD alignment inorganic agent,
Solvent and a plurality of spacers；Solidify aforementioned orientation solution to form the first both alignment layers；Coating of liquid crystalline solution is in aforementioned first
To form liquid crystal layer in both alignment layers, wherein foregoing liquid crystal solution includes liquid crystal material；Second substrate is provided；And by aforementioned second
Baseplate-laminating is on aforementioned first substrate.
In one embodiment of this invention, foregoing liquid crystal orientation inorganic agent is selected from acrylate copolymer, methacrylic acid
Polymer, novolac resin, polycarboxylated styrene, polyimides predecessor, polyimides, polyamide, polyester, cellulose and
One of in the group that polysiloxanes are constituted or its combination.
In one embodiment of this invention, relative to the aforementioned orientation solution of 100 weight portions, aforementioned orientation solution includes 1
To the foregoing liquid crystal orientation inorganic agent of 10 weight portions.
In one embodiment of this invention, relative to the aforementioned orientation solution of 100 weight portions, aforementioned orientation solution is included
The spacer of 0.1 to 0.3 weight portion.
In one embodiment of this invention, the particle diameter of each aforementioned gap is 6 microns (μm) to 14 microns (μm).
In one embodiment of this invention, when solidifying aforementioned orientation solution step the curing that adopted for heat cure at
Reason.
In one embodiment of this invention, the temperature that aforementioned heat cure is processed is 60 DEG C to 160 DEG C, and process time is 10
Minute was to 40 minutes.
In one embodiment of this invention, foregoing liquid crystal solution further include curable resin, dyestuff or, initiator or its group
Close.
In one embodiment of this invention, aforementioned curable resin selected from 1,6- hexanediyl esters (HDDA),
Triethylene glycol diacrylate (TEGDA), 1,9- nonanediol diacrylate (1,9-NDDA) propylene glycol diacrylates
(DPGDA), ethoxylated bisphenol A diacrylates (BPA4EODA), 3-hydroxypivalic acid neopentylglycol diacrylate (HPHPDA),
One of in the group that Polyethylene Glycol (200) diacrylate (PEG200DA) is constituted or its combination.
In one embodiment of this invention, relative to the foregoing liquid crystal solution of 100 weight portions, foregoing liquid crystal solution includes 75
To the foregoing liquid crystal material of 95 weight portions.
In one embodiment of this invention, relative to the foregoing liquid crystal solution of 100 weight portions, foregoing liquid crystal solution includes 0
To the aforementioned curable resin of 25 weight portions.
In one embodiment of this invention, relative to the foregoing liquid crystal solution of 100 weight portions, foregoing liquid crystal solution includes 0
To the abovementioned dyes of 5 weight portions.
In one embodiment of this invention, aforementioned second substrate have the second both alignment layers, and aforementioned second both alignment layers with it is front
State the first both alignment layers relative.
In one embodiment of this invention, aforementioned first substrate and second substrate are each independently glass substrate or plastic cement base
Plate.
Another object of the present invention provides a kind of liquid-crystal apparatus, by the manufacture method institute of various liquid-crystal apparatus as the aforementioned
Obtain.
Compared with prior art, after the present invention by spacer by being mixed into and being applied on first substrate together in orientation solution
Solidified, because before coating of liquid crystalline solution, spacer is fixed in the first both alignment layers by cured, therefore can avoid practising
Know that manufacture method is mixed into spacer when coating in both alignment layers in the lump in liquid crystal solution, be susceptible to spacer skewness or
The problem of sedimentation.
Description of the drawings
Figure 1A～Fig. 1 F are the section processing procedure schematic diagram of the liquid-crystal apparatus of one embodiment of the invention.
Fig. 2 is the generalized section of the liquid-crystal apparatus of one embodiment of the invention.
Specific embodiment
In order that the narration of disclosure of the present invention it is more detailed with it is complete, below for embodiments of the present invention with
Specific embodiment proposes illustrative description；But this is not implemented or with the unique forms of the specific embodiment of the invention.With
Lower disclosed each embodiment, can be mutually combined or replace in the case of beneficial, also can additional others in one embodiment
Embodiment, and need not further record or explanation.
In the following description, many specific details be will be described in detail so that reader can fully understand below example.
However, embodiments of the invention can be put into practice in the case of without these specific details.In other cases, it is to simplify schema, it is ripe
The structure known only symbolically is illustrated in figure with device.
A kind of manufacture method of liquid-crystal apparatus of offer of one mesh of the present invention.Figure 1A to Fig. 1 F is refer to, the present invention is illustrated
The step of manufacture method of the liquid-crystal apparatus of one embodiment, schemes.
Figure 1A is refer to, first, there is provided the first substrate 110 with the first conductive layer (schema is not illustrated).It is suitable as
The first substrate 110 of the manufacture method of the liquid-crystal apparatus of the present invention can be the high conventional materials of the transparency, have no special limit
System, for example, can be glass substrate or plastic substrate.Suitable plastic substrate material may, for example, be Triafol T
(TAC), cyclic olefin copolymer (COP), the polymethylacrylic acid of norbornene derivative (norbornene derivative)
Formicester (PMMA), Merlon (PC), polyethylene (PE), polypropylene (PP), polyvinyl alcohol (PVA), diacetyl cellulose
(DAC), polyacrylate (PAC), polytrimethylene ether sulfone (PES), polyether-ether-ketone (PEEK), Polyphenylene Sulfone (PPSU), Polyetherimide
(PEI), PEN (PEN), polyethylene terephthalate (PET), pi (PI), polysulfones (PSF), poly-
Aromatic ester (PAR) or amorphous (amorphous) fluorine resin, but not limited to this.
First conductive layer of first substrate 110 can be formed by sedimentation, for example, deposition conducting polymer, conductive gold
Category, conducting nanowires or indium tin oxide (Indium Tin Oxid, ITO) are formed on substrate, and it may be used to drive liquid crystal
Liquid crystal start in device.In one embodiment of this invention, first substrate 110 is conductive as first with indium tin oxide
The glass substrate of layer.
Figure 1B is refer to, then coating orientation solution 120 is on first substrate 110.Orientation solution 120 includes LCD alignment
Inorganic agent, solvent and a plurality of spacers 121.The method of coating orientation solution 120 may, for example, be slot coated method (slit
Coating), drum-type rubbing method (roller coating) or die type rubbing method (Die coating) etc., but be not limited to
This.
LCD alignment inorganic agent by light irradiation or can carry out friction treatment and orient sequence, and when liquid-crystal compoundss be determined
When sequence, for example, by the reciprocal action of the anisotropy reciprocal action between liquid-crystal compoundss etc., therefore can be with a predetermined party
Orientation is carried out to by neighbouring liquid-crystal compoundss.LCD alignment inorganic agent can include unimolecule compound, monomeric compound, oligomerization
Compound or polymerizable compound.Suitable LCD alignment inorganic agent can be including but not limited to acrylate copolymer, methacrylic acid
Polymer, novolac resin, polycarboxylated styrene, polyimides predecessor, polyimides, polyamide, polyester, cellulose,
The combination of polysiloxanes or previous materials.Solvent to make coating of liquid crystalline orientation inorganic agent after film or surface smoothness carry
It is high.Suitable solvent is the solvent for making the dissolving of specific LCD alignment inorganic agent, can comprising such as 1- hexanols, Hexalin, 1,2-
Ethylene glycol, 1,2- Propylene Glycol, glycol monobutyl ether, butyl glycol ether, dipropylene glycol dimethyl ether, Ketohexamethylene, Ketocyclopentane, N-
The combination of methyl-pyrrolidon, N- ethyl-pyrrolidinones, gamma-butyrolacton or previous materials.In one embodiment of this invention,
Solvent can be N- methyl-pyrrolidons, and LCD alignment inorganic agent can be polyimides.In one embodiment of this invention,
Relative to the orientation solution 120 of 100 weight portions, LCD alignment inorganic agent and 90 of the orientation solution 120 comprising 1 to 10 weight portion
To the solvent of 99 weight portions.
Spacer 121 may, for example, be known liquid crystal dress to control the cell gap between two plate bases, suitable material
Clearance material used in putting, such as clearance material of glass system or resin system.The particle diameter of spacer 121 can be according to required control
System uniform cell gap thickness and select different uniform particle sizes.In one embodiment of this invention, the particle diameter of spacer is 6
To 14 microns (μm), and relative to the orientation solution 120 of 100 weight portions, orientation solution 120 includes 0.1 to 0.3 weight to micron (μm)
The spacer 121 of amount part.
Coating orientation solution 120 then, solidifies orientation solution 120 to form the first both alignment layers 120R after substrate 110,
As shown in Figure 1 C.While solidification orientation solution, spacer 121 is also fixed in the first both alignment layers 120R simultaneously, therefore gap
Son 121 can be uniformly distributed, without there are settlement issues.The curing of solidification orientation solution 120 can be processed for heat cure
Or photocuring is processed.In one embodiment of this invention, curing is heat cure process, solidifies temperature during orientation solution 120
Spend for 60 DEG C to 160 DEG C, and hardening time is 10 minutes to 40 minutes.Then, optionally for solidification after first match somebody with somebody
An orientation process is carried out to be formed, alignment method may, for example, be scratches orientation method (micro-scratch to layer 120R
Alignment treatment), brushing formula orientation method (rubbing treatment), light orientation method (photo-
Alignment), silicon dioxide steams method (SiO2) or ion beam orientation method (ion beam alignment) evaporation.
Orientation mode is not limited to the claim of the present invention.The both alignment layers for being formed in any manner belong to this
Bright asked protection domain.
Formed after the first both alignment layers after 120R, coating of liquid crystalline solution in the first both alignment layers 120R to form liquid crystal layer 130,
As shown in figure ip.Liquid crystal solution includes liquid crystal material, and suitable liquid crystal material can be smectic liquid crystal compound, nematic liquid
Crystallization compound or cholesterol shape liquid-crystal compoundss.When foreign voltage is bestowed, the alignment direction of liquid crystal molecule can be changed, and according to
The pattern of this switchable liquid crystal device.In one embodiment of this invention, relative to the liquid crystal solution of 100 weight portions, liquid crystal solution
Liquid crystal material comprising 75 to 95 weight portions.
In one embodiment of this invention, liquid crystal solution optionally further includes curable resin, dye according to different demands
Material, initiator or its combination.
Addition curable resin can increase penetration of the liquid-crystal apparatus in saturating state, and suitable curable resin is dissolvable
In liquid crystal, can be polymerized to form hardening resin with any reaction formation again.In one embodiment of this invention, it is curable
Weight average molecular weight (the M of resinw) be less than 400, it is preferred that the weight average molecular weight of curable resin be about 200 to
400, molecular weight may make greatly very much liquid-crystal apparatus have white point because dispersibility is not good in saturating state.Suitable curable resin can
Being, for example, 1,6 hexanediol diacrylate (HDDA), triethylene glycol diacrylate (TEGDA), the propylene of 1,9- nonanediols two
Acid esters (1,9-NDDA) propylene glycol diacrylate (DPGDA), ethoxylated bisphenol A diacrylates (BPA4EODA), hydroxyl
Pivalic acid neopentylglycol diacrylate (HPHPDA), Polyethylene Glycol (200) diacrylate (PEG200DA) or previous materials
Combination, but not limited to this.In one embodiment of this invention, relative to the liquid crystal solution of 100 weight portions, liquid crystal solution can be wrapped
Curable resin containing 0 to 25 weight portion.
Suitable dyestuff can be pleochroism or dichromatic dyestuff, therefore class dye molecule has and liquid crystal molecules parallel
The performance of arrangement, when the dyestuff with rod-like structure is added in liquid crystal, by the direction for applying electric field change liquid crystal molecule, dye
The direction of material molecule also can change therewith, and then can switch colored state and colorless state by applied voltage, to change liquid
The different use patterns of brilliant device.Suitable dyestuff may, for example, be azo aryl (arylazo) dyestuff, poly- azo aryl dye
Material, nonionic azo dyestuff, Herba Alii fistulosi quinone dyestuff or its combination.In one of present invention embodiment, dyestuff is azo aryl
(arylazo) dyestuff, and relative to the liquid crystal solution 130 of 100 weight portions, dyestuff of the liquid crystal solution comprising 0 to 5 weight portion.
Liquid crystal solution can more be blended with initiator, and initiator can be the known starting such as light initiator or hot initiator
Agent, is not particularly limited.In one embodiment of this invention, initiator can be light initiator 1- hydroxycyclohexyl phenyl ketones,
And relative to the liquid crystal solution of 100 weight portions, light initiator of the liquid crystal solution comprising 0 to 3 weight portion.
Fig. 1 E are refer to, the second substrate 140 with the second conductive layer (schema is not illustrated) is then provided.It is suitable as this
The second substrate 140 of the manufacture method of the liquid-crystal apparatus of invention can be the high conventional materials of the transparency, be not particularly limited,
For example can be glass substrate or plastic substrate.Suitable plastic substrate material may, for example, be Triafol T (TAC), drop
Cyclic olefin copolymer (COP), the polymethyl methacrylate of Borneolum Syntheticum ene derivative (norbornene derivative)
(PMMA), Merlon (PC), polyethylene (PE), polypropylene (PP), polyvinyl alcohol (PVA), diacetyl cellulose (DAC),
It is polyacrylate (Pac), polytrimethylene ether sulfone (PES), polyether-ether-ketone (PEEK), Polyphenylene Sulfone (PPSU), Polyetherimide (PEI), poly-
Polyethylene naphthalate (PEN), polyethylene terephthalate (PET), pi (PI), polysulfones (PSF), Aromatic polyester
Or amorphous (amorphous) fluorine resin, but not limited to this (PAR).
Second conductive layer of second substrate 140 can be formed by sedimentation, for example, deposition conducting polymer, conductive gold
Category, conducting nanowires or indium tin oxide (Indium Tin Oxid, ITO) are formed on substrate, and it may be used to drive liquid
Liquid crystal start in brilliant device.In one embodiment of this invention, second substrate 140 is to lead as second with indium tin oxide
The glass substrate of electric layer.Selectively, the second both alignment layers 150R can be formed on second substrate 140, the second both alignment layers 150R can be with
Formed by known both alignment layers forming method.
Finally, second substrate 140 is fitted on first substrate 110, and the second both alignment layers 150R of second substrate 140 with
First both alignment layers 120R are oppositely disposed, and liquid crystal layer 130 is configured between first substrate 110 and second substrate 140, such as Fig. 1 F
It is shown.
In one embodiment of this invention, it is optionally right after laminating first substrate 110 and second substrate 140
Liquid crystal layer 130 carries out photocuring process, and the light irradiation energy that photocuring is processed is about 1100mj/cm2To 1200mj/cm2.Can
Selectively, the first both alignment layers 120R and the second both alignment layers 150R also can carry out light orientation by photocuring process.
The present invention by spacer 121 is mixed in orientation solution 120 be applied to together on first substrate 110 after carry out it is solid
Change, because before coating of liquid crystalline solution, spacer 121 is fixed in the first both alignment layers 120R by cured, therefore can avoid
Known manufacture method is mixed into spacer 121 when coating in both alignment layers 120R in the lump in liquid crystal solution, is susceptible to spacer
121 skewness or the problem of sedimentation.
Another object of the present invention provides a kind of liquid-crystal apparatus, and it is obtained by the manufacture method of above-mentioned liquid-crystal apparatus
.In one embodiment of the present invention, when no voltage is applied, the liquid crystal molecule Jing in the liquid crystal layer 130 in liquid-crystal apparatus
It is in equidirectional by the first both alignment layers 120R and the second both alignment layers 150R vertical orientation, therefore incident illumination can be filled by liquid crystal
Put, state is presented in appearance, after certain voltage is applied, the liquid crystal molecule in liquid crystal layer 130 is sent out into arrangement at random, incident illumination
The strong scattering of life, incident illumination can not be by liquid-crystal apparatus, then in mist state.In another embodiment of the invention, when not applying
During making alive, there is strong scattering in the liquid crystal molecule in liquid crystal layer 130, incident illumination can not pass through into arrangement at random, incident illumination
Liquid-crystal apparatus, then in mist state, after certain voltage is applied, the liquid crystal molecule in liquid crystal layer 130 in liquid-crystal apparatus is via the
One both alignment layers 120R and the second both alignment layers 150R vertical orientation and be in equidirectional, therefore incident illumination can by liquid-crystal apparatus,
State is presented in appearance.
In sum, using the present invention liquid-crystal apparatus manufacture method obtained by liquid-crystal apparatus because spacer can be avoided
121 skewness or the problem of sedimentation, therefore preferably optical property can be possessed.Additionally, because the manufacture method of the present invention is not required to mat
Photosensitive type gap is made by photolithographic processes (Photolithography process), therefore processing procedure can be simplified, and be suitable for
In large-area volume to volume (roll-to-roll) processing procedure.Liquid-crystal apparatus one kind of the present invention can be presented morphotype formula or mist state
The light modulating device of pattern, therefore can fill as wisdom window, windows be protected as optics dimmer (optical modulator)
Put or flexible display device, but the present invention is not limited to this.
Following embodiments are used for further illustrating the present invention, but the present invention is not intended to be limited thereto.
Embodiment 1：The preparation of liquid-crystal apparatus
By 0.03 gram particle footpath for 14 microns (μm) spacer (N3N-14 μm, be purchased from UBE EXSYMO, Japan) with 10 grams
Polyalkylene imine solution (solvent is N-Methyl pyrrolidone, is purchased from up to emerging material, Taiwan for DA-9003, solid content about 2%) mix
After closing stirring 24 hours, it is coated on the first transparency electrode layer of the first glass substrate, first transparency electrode layer is tin indium oxide
(ITO) transparent electrode layer, coating thickness is about 16 microns (μm), and 60 DEG C, after 10 minutes are heated to afterwards, is again heated to 150 DEG C,
30 minutes, to prepare the first both alignment layers.
Then by 0.009 gram of light initiator 1- hydroxycyclohexyl phenyl ketones, 0.45 gram of UV resin 1,6-HDs
Diacrylate (EM221 is purchased from Changxing chemical industry, Taiwan), 0.4 gram of dyestuff (4- (4- butyl phenyl azos) phenol and the Sudan
Black mixture, is purchased from Imperial Chemical Industries, Britain) and 9.15 grams of liquid-crystal compoundss (MJT510200-100 is purchased from river
Su Hecheng, China) mixing after form liquid crystal solution.Liquid crystal solution is coated in the first both alignment layers again.
Prepare the second glass substrate with the second both alignment layers and the second transparency conducting layer, second transparency electrode layer is oxidation
Indium stannum (ITO) transparent electrode layer, it is then relative to conforming on the first glass substrate with orientation bed boundary, obtain the liquid of before processing
Brilliant device.
The last liquid crystal dress with ultraviolet lamp (TL-K 40W, are purchased from Philips, Germany) the above-mentioned before processing of irradiation
Putting makes both alignment layers orientation and solidification liquid crystal solution, and the wherein wavelength of light source is 365 nanometers (nm), and irradiation time is 300 seconds.
Embodiment 2：The preparation of liquid-crystal apparatus
By 0.01 gram particle footpath for 6 microns (μm) spacer (N3N-6 μm, be purchased from UBE EXSYMO, Japan) with 10 grams
Polyalkylene imine solution (solvent is N-Methyl pyrrolidone, is purchased from up to emerging material, Taiwan for DA-9003, solid content about 4%) mixes
After stirring 24 hours, it is coated on the first transparency electrode layer of the first glass substrate, first transparency electrode layer is tin indium oxide
(ITO) transparent electrode layer, coating thickness is about 8 microns (μm), and 60 DEG C are heated to afterwards after 10 minutes, is again heated to 160 DEG C 30
Minute, to prepare the first both alignment layers.
Then by 0.2 gram of azo-dye mixer (being purchased from Lin Yuan Co., Ltd., Japan) and 9.8 grams of LCD compound
Liquid crystal solution is formed after thing (MJT510200-100 is purchased from Jiangsu synthesis, China) mixing.Again liquid crystal solution is coated on into first
In both alignment layers.
Prepare the second glass substrate with the second both alignment layers and second transparency electrode layer, second transparency electrode layer is oxygen
Change indium stannum (ITO) transparent electrode layer, it is then relative to conforming on the first glass substrate with orientation bed boundary, obtain liquid crystal dress
Put.
Embodiment 3：The preparation of liquid-crystal apparatus
By 0.01 gram particle footpath for 6 microns (μm) spacer (N3N-14 μm, be purchased from UBE EXSYMO, Japan) with 10 grams
Polyalkylene imine solution (solvent is N-Methyl pyrrolidone, is purchased from up to emerging material, Taiwan for DA-9003, solid content about 2%) mixes
After stirring 24 hours, it is coated on the first transparency electrode layer of the first glass substrate, first transparency electrode layer is tin indium oxide
(ITO) transparent electrode layer, coating thickness is about 8 microns (μm), and 60 DEG C, after 10 minutes are heated to afterwards, is again heated to 160 DEG C,
30 minutes, to prepare the first both alignment layers.
Then by 0.005 gram of light initiator 1- hydroxycyclohexyl phenyl ketones, 2.5 grams of UV resins 1,6-HD two
(MJT510200-100 is purchased from Jiangsu for acrylate (IM221 is purchased from Changxing chemical industry, Taiwan) and 7.5 grams of liquid-crystal compoundss
Synthesis, China) mixing after form liquid crystal solution.Liquid crystal solution is coated in the first both alignment layers again.
Prepare the second glass substrate with the second both alignment layers and second transparency electrode layer, second transparency electrode layer is oxidation
Indium stannum (ITO) transparent electrode layer, it is then relative to conforming on the first glass substrate with orientation bed boundary, obtain the liquid of before processing
Brilliant device.
The last liquid crystal dress with ultraviolet lamp (TL-K 40W, are purchased from Philips, Germany) the above-mentioned before processing of irradiation
Putting makes both alignment layers orientation and solidification liquid crystal solution, and the wherein wavelength of light source is 365 nanometers (nm), and irradiation time is 240 seconds.
Embodiment 4：The preparation of liquid-crystal apparatus
By 0.02 gram particle footpath for 9 microns (μm) spacer (N5N-9 μm, be purchased from UBE EXSYMO, Japan) with 10 grams
Polyalkylene imine solution (solvent is N-Methyl pyrrolidone, is purchased from up to emerging material, Taiwan for DA-9003, solid content about 2%) mixes
After stirring 24 hours, it is coated on the first transparency electrode layer of the first glass substrate, first transparency electrode layer is tin indium oxide
(ITO) transparent electrode layer, coating thickness is about 12 microns (μm), and 60 DEG C, after 10 minutes are heated to afterwards, is again heated to 150 DEG C,
30 minutes, to prepare the first both alignment layers.
Then by 0.02 gram of light initiator 1- hydroxycyclohexyl phenyl ketones, 1 gram of UV resin 1,6-HD dipropyls
(MJT510200-100 is purchased from Jiangsu conjunction for olefin(e) acid ester (EM221 is purchased from Changxing chemical industry, Taiwan) and 9 grams of liquid-crystal compoundss
Into, China) mixing after form liquid crystal solution.Liquid crystal solution is coated in the first both alignment layers again.
Prepare the second glass substrate with the second both alignment layers and the second transparency conducting layer, second transparency electrode layer is oxidation
Indium stannum (ITO) transparent electrode layer, it is then relative to conforming on first substrate with orientation bed boundary, obtain the liquid crystal dress of before processing
Put.
The last liquid crystal dress with ultraviolet lamp (TL-K 40W, are purchased from Philips, Germany) the above-mentioned before processing of irradiation
Putting makes both alignment layers orientation and solidification liquid crystal solution, and the wherein wavelength of light source is 365 nanometers (nm), and irradiation time is 240 seconds.
Table 1：The further elements of embodiment 1-4
Comparative example 1：The preparation of liquid-crystal apparatus
By polyalkylene imine solution (solvent is N-Methyl pyrrolidone for DA-9003, solid content about 4%, is purchased from up to emerging material,
Taiwan) it is coated on the first transparency electrode layer of first substrate glass, first transparency electrode layer is the transparent electricity of tin indium oxide (ITO)
Pole layer, coating thickness is about 12 microns (μm), and 60 DEG C, after 10 minutes are heated to afterwards, is again heated to 150 DEG C, 30 minutes, to make
Standby first both alignment layers.
Then by 0.02 gram particle footpath for 14 microns (μm) spacer (N3N-14 μm, be purchased from UBE EXSYMO, Japan),
0.009 gram of light initiator 1- hydroxycyclohexyl phenyl ketones, 0.45 gram of UV resin 1,6 hexanediol diacrylates
(EM221 is purchased from Changxing chemical industry, Taiwan), 0.4 gram of the dyestuff (mixing of 4- aminoazabenzols, tonyred three and sudan black
Thing, is purchased from Imperial Chemical Industries, Britain) and 9.15 grams liquid-crystal compoundss (MJT510200-100, be purchased from Jiangsu synthesis, in
State) mixing after form liquid crystal solution.Liquid crystal solution is coated in the first both alignment layers again
Prepare the second glass substrate with the second both alignment layers and second transparency electrode layer, second transparency electrode layer is oxidation
Indium stannum (ITO) transparent electrode layer, it is then relative to conforming on first substrate with orientation bed boundary, obtain the liquid crystal dress of before processing
Put.
The last liquid crystal dress with ultraviolet lamp (TL-K 40W, are purchased from Philips, Germany) the above-mentioned before processing of irradiation
Putting makes both alignment layers orientation and solidification liquid crystal solution, and the wherein wavelength of light source is 365 nanometers (nm), and irradiation time is 240 seconds.
Comparative example 2：The preparation of liquid-crystal apparatus
By polyalkylene imine solution (solvent is N-Methyl pyrrolidone for DA-9003, solid content about 2%, is purchased from up to emerging material,
Taiwan) it is coated on the first transparency electrode layer of the first glass substrate, first transparency electrode layer is the transparent electricity of tin indium oxide (ITO)
Pole layer, coating thickness is about 10 microns (μm), and 60 DEG C, after 10 minutes are heated to afterwards, is again heated to 150 DEG C, 30 minutes, to make
Standby first both alignment layers.
Then by 0.02 gram particle footpath for 9 microns (μm) spacer (N3N-9 μm, be purchased from UBE EXSYMO, Japan), 0.02
Gram light initiator 1- hydroxycyclohexyl phenyl ketones, 1 gram of UV resins 1, (EM221 is purchased from length to 6- hexanediyl esters
Xinghua work, Taiwan) and 9 grams liquid-crystal compoundss (MJT510200-100, be purchased from Jiangsu synthesis, China) mixing after form liquid
Brilliant solution.Liquid crystal solution is coated in the first both alignment layers again.
Prepare the second glass substrate with the second both alignment layers and second transparency electrode layer, second transparency electrode layer is oxidation
Indium stannum (ITO) transparent electrode layer, it is then relative to conforming on first substrate with orientation bed boundary, obtain the liquid crystal dress of before processing
Put.
The last liquid crystal dress with ultraviolet lamp (TL-K 40W, are purchased from Philips, Germany) the above-mentioned before processing of irradiation
Putting makes both alignment layers orientation and solidification liquid crystal solution, and the wherein wavelength of light source is 365 nanometers (nm), and irradiation time is 240 seconds.
Table 2：The further elements of comparative example 1-2
Spacer distribution test method
After amplifying 100 times with optical microscope, the distribution situation of liquid-crystal apparatus intermediate gap is observed.
Appearance uniform degree method of testing
Visually to observe the color distortion of liquid-crystal apparatus, if the area of more than 1 square centimeter of subrange can be visually observed
Domain irregular colour, then be judged to that the uniformity is not good, if visually field color of the observation without more than 1 square centimeter of subrange is not
, then it is judged to that the uniformity is good.
Optical characteristic test method
With penetration measurement apparatus (SD2400 is purchased from EDTM, the U.S.) liquid-crystal apparatus are measured without visible during applied voltage
Light penetration.
Driving voltage test mode
With penetration measurement apparatus (SD2400 is purchased from EDTM, the U.S.) liquid-crystal apparatus are measured with impressed DC voltage 60V drives
Visible ray penetration when dynamic.
The test result of embodiment 1-4 and comparative example 1-3 is as shown in Listing 3.
The test result of the embodiment of table 3 and comparative example
From embodiment 1-4 and the test result of comparative example 1-2, neither there is sedimentation in the spacer in embodiment 1-4
Problem, and outward appearance is all the uniform problem without irregular colour, and compared to comparative example 1-2 preferable optical property is obviously possessed.
Additionally, embodiment 1-4 understands that visible ray penetration during applied voltage 60V can be reduced to 10% to 32% by 39% to 78%,
The liquid-crystal apparatus of the obvious present invention can reach the effect for switching to mist state with low voltage drive really.Learnt by comparative result, by
Liquid-crystal apparatus obtained by the manufacture method of the liquid-crystal apparatus of the present invention can avoid the problem of spacer sedimentation or skewness, therefore
There can be preferably optical property.
Although the present invention is disclosed above with embodiment, so it is not limited to the present invention, any to be familiar with this those skilled in the art,
Without departing from the spirit and scope of the invention, when can make various changes and retouching, therefore the protection domain of the present invention is when regarding
The claim person of defining attached afterwards is defined.
Claims (15)
1. a kind of manufacture method of liquid-crystal apparatus, it is characterised in that include the step of the preparation method：
First substrate with the first conductive layer is provided；
On the first substrate, the orientation solution includes LCD alignment inorganic agent, solvent and a plurality of to coating orientation solution
Gap；
Solidify the orientation solution to form the first both alignment layers；
To form liquid crystal layer in first both alignment layers, the liquid crystal solution includes liquid crystal material to coating of liquid crystalline solution；
Second substrate is provided；And
The second substrate is fitted on the first substrate.
2. manufacture method as claimed in claim 1, it is characterised in that the LCD alignment inorganic agent is selected from acroleic acid polymerization
Thing, methacrylate polymer, novolac resin, polycarboxylated styrene, polyimides predecessor, polyimides, polyamide,
One of in the group that polyester, cellulose and polysiloxanes are constituted or its combination.
3. manufacture method as claimed in claim 1, it is characterised in that relative to the orientation solution of 100 weight portions, the orientation
The LCD alignment inorganic agent of solution comprising 1 to 10 weight portion.
4. manufacture method as claimed in claim 1, it is characterised in that relative to the orientation solution of 100 weight portions, the orientation
Spacer of the solution comprising 0.1 to 0.3 weight portion.
5. manufacture method as claimed in claim 1, it is characterised in that the particle diameter of each spacer is in a plurality of spacers
6 microns to 14 microns.
6. manufacture method as claimed in claim 1, it is characterised in that the solidification side that the solidification orientation solution step is adopted
Method is heat cure process.
7. manufacture method as claimed in claim 6, it is characterised in that during the solidification orientation solution step, solidification temperature is
60 DEG C to 160 DEG C, and hardening time is 10 minutes to 40 minutes.
8. manufacture method as claimed in claim 1, it is characterised in that the liquid crystal solution also comprising curable resin, dyestuff, rise
Beginning agent or its combination.
9. manufacture method as claimed in claim 8, it is characterised in that the curable resin is selected from the propylene of 1,6- hexanediol two
Acid esters, triethylene glycol diacrylate, 1,9- nonanediol diacrylate propylene glycol diacrylates, ethoxylated bisphenol A bis-
In the group that acrylate, 3-hydroxypivalic acid neopentylglycol diacrylate and Polyethylene Glycol (200) diacrylate are constituted
One of or its combination.
10. manufacture method as claimed in claim 1, it is characterised in that relative to the liquid crystal solution of 100 weight portions, the liquid
The liquid crystal material of brilliant solution comprising 75 to 95 weight portions.
11. manufacture methods as claimed in claim 1, it is characterised in that relative to the liquid crystal solution of 100 weight portions, the liquid
The curable resin of brilliant solution comprising 0 to 25 weight portion.
12. manufacture methods as claimed in claim 1, it is characterised in that relative to the liquid crystal solution of 100 weight portions, the liquid
The dyestuff of brilliant solution comprising 0 to 5 weight portion.
13. manufacture methods as claimed in claim 1, it is characterised in that the second substrate include the second both alignment layers, and this second
Both alignment layers are relative with first both alignment layers.
14. manufacture methods as claimed in claim 1, it is characterised in that the first substrate and second substrate are each independently glass
Glass substrate or plastic substrate.
15. a kind of liquid-crystal apparatus, it is characterised in that the liquid-crystal apparatus are by the liquid as described in arbitrary in claim 1 to 14
The manufacture method of brilliant device is obtained.
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| CN111240071A (en) * | 2020-03-17 | 2020-06-05 | 东莞市宝立创电子科技有限公司 | Liquid crystal handwriting diaphragm, preparation method thereof and liquid crystal handwriting board |
| WO2024108846A1 (en) * | 2022-11-21 | 2024-05-30 | 江苏集萃智能液晶科技有限公司 | Dimming device and preparation method therefor |
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