CN106019754A - Thermal-response infrared total reflection device and preparing method thereof - Google Patents
Thermal-response infrared total reflection device and preparing method thereof Download PDFInfo
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- CN106019754A CN106019754A CN201610415276.5A CN201610415276A CN106019754A CN 106019754 A CN106019754 A CN 106019754A CN 201610415276 A CN201610415276 A CN 201610415276A CN 106019754 A CN106019754 A CN 106019754A
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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
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/1396—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
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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
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
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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
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
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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
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13478—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells based on selective reflection
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Abstract
The invention discloses a thermal-response infrared total reflection device and a preparing method thereof. The thermal-response infrared total reflection device comprises three light-transmitting base materials, the two adjacent light-transmitting base materials in the three light-transmitting base materials are sealed to form a first adjusting area and a second adjusting area respectively, the first adjusting area and the second adjusting area are both filled with liquid crystal layers, the liquid crystal layers comprise mixed liquid crystal materials and introns for controlling the thickness of the liquid crystal layers, the mixed liquid crystal materials comprise thermal-response liquid crystal materials and chiral additive, the introns are dispersed in the mixed liquid crystal materials, and in the using temperature range of an infrared reflection film, the mixed liquid crystal materials are chiral nematic phases; the spiral direction of the mixed liquid crystal materials of the first adjusting area is opposite to the spiral direction of the mixed liquid crystal materials of the second adjusting area, and the thread pitch of the mixed liquid crystal materials is changed along with changing of the temperature. The chiral-nematic-phase mixed liquid crystal materials in the opposite spiral directions are oppositely arranged in the infrared total reflection device, and therefore reflection of infrared light in different polarization rotation directions is achieved.
Description
Technical field
The present invention relates to field of optical device technology, particularly relate to a kind of thermal response infrared total reflection device and preparation method thereof.
Background technology
In order to realize transmission and the reflection of sunlight, the common practice is plated film on glass so that in light, the light of certain section of wavelength can
To be reflected by windowpane or transmission.Can according to different reflective and printing opacity demands, use unlike material film, than if desired for every
During the effect that heat is incubated, the film that far infrared radiation heat is had high reflectance can be selected.But adopt and regulate sunlight in this way
Reflection and transmission can only realize the reflection of a certain fixed band because after coated glass is formed, its optical property can not be along with
Demand changes and adjusts, but is as season, the change of weather, the change of personal like, and the demand of people can constantly occur
Change, and coated glass is difficult in adapt to the change of people's demand, it is impossible to realize cool in summer and warm in winter.
A kind of adjustable infrared reflection films of infrared external reflection wave band of exploitation, it is possible to better adapt to the change of the demand of people, will
Can the most commercially promote the use of.
Summary of the invention
The technical problem to be solved is to provide a kind of thermal response infrared total reflection device and preparation method thereof.
The technical solution used in the present invention is:
A kind of thermal response infrared total reflection device, it is characterised in that include three pieces of transmitting substrates, phase in described three pieces of transmitting substrates
Between adjacent two pieces of transmitting substrates, encapsulation forms the first regulatory region and the second regulatory region respectively, and described first regulatory region and described second is adjusted
Joint district is all filled with liquid crystal layer, and described liquid crystal layer includes mixed liquid crystal material and for controlling the introns of described thickness of liquid crystal layer,
Comprising thermal response liquid crystal material and chiral additives in described mixed liquid crystal material, described introns are dispersed in described mixed liquid crystal material
In material, in the use temperature range of described infrared reflection films, described mixed liquid crystal material is chiral nematic phase, and described first
The hand of spiral phase of the hand of spiral of the described mixed liquid crystal material of regulatory region and the described mixed liquid crystal material of described second regulatory region
Instead, along with temperature changes, the pitch of described mixed liquid crystal material changes.
In some specific embodiments, the surface that described transmitting substrate is relative with another adjacent transmitting substrate is provided with parallel
Both alignment layers, described thermal response liquid crystal material is formed in parallel with the orientation row of described transmitting substrate under the effect of described parallel both alignment layers
Row.
In some specific embodiments, the pitch of the described mixed liquid crystal material of described first regulatory region and described second regulation
The pitch of the described mixed liquid crystal material in district is identical.
In some specific embodiments, the described mixed liquid crystal material of described first regulatory region comprises the heat of 70～100 mass parts
Response liquid crystal material and the right-handed chirality additive of 0.5～3 mass parts, the described mixed liquid crystal material of described second regulatory region comprises
The thermal response liquid crystal material of 70～100 mass parts and the left-handed chiral additives of 0.5～3 mass parts.
In some specific embodiments, the height of described introns is equal to the thickness of described liquid crystal layer.
In further preferred embodiment, the material of described introns is appointing in acryl resin, glass, silica resin
A kind of.
In some specific embodiments, in the described transmitting substrate in the outside being located at described thermal response infrared total reflection device extremely
It is pasted with protecting film on the outer surface of a few described transmitting substrate.
In further preferred embodiment, in described transmitting substrate and the institute in the outside of described thermal response infrared total reflection device
State and be provided with one layer between protecting film from viscose.
Present invention also offers the preparation method of a kind of thermal response as above infrared total reflection device, comprise the following steps:
S1: prepare three pieces of transmitting substrates；
S2: prepare both alignment layers respectively on a surface of the first transmitting substrate and a surface of the 3rd transmitting substrate, second
Both alignment layers is all prepared on two surfaces of transmitting substrate；
S3: take multiple introns and be positioned over described first transmitting substrate and be provided with on the surface of both alignment layers, by described second transmitting substrate
It is placed on described introns, described first transmitting substrate and described second transmitting substrate are packaged into ground floor liquid crystal cell, then
Place multiple introns on described second transmitting substrate, the 3rd transmitting substrate is placed on described introns, described 3rd printing opacity
Base material is provided with the surface of both alignment layers and arranges, by described second transmitting substrate and described 3rd printing opacity base towards described second transmitting substrate
Material is packaged into second layer liquid crystal cell；
S4: take thermal response liquid crystal material and the mixing of right-handed chirality additive, obtain mixed liquid crystal materials A, take thermal response liquid crystal material
Material and left-handed chiral additives mix, and obtain mixed liquid crystal material B, by described mixed liquid crystal materials A and described mixed liquid crystal material
Material B is injected separately into described ground floor liquid crystal cell and described second layer liquid crystal cell.
In some specific embodiments, both alignment layers prepared by described S2 is parallel both alignment layers.
The invention has the beneficial effects as follows:
Chiral nematic phase liquid crystal helical structure in helical axis directions is periodic arrangement, and the director of chiral nematic phase liquid crystal exists
The spacing rotating 2 π in helical axis directions is referred to as a pitch, represents with P.According to below equation: λ=P × n, wherein, λ is
The chiral nematic phase liquid crystal reflection wavelength of single pitch, n is the average light refractive index of liquid crystal；Δ λ=(ne-no) × P=Δ n × P, its
In, Δ λ is reflection spectrum bandwidth, and Δ n is the difference of birefringence；When P value changes, wavelength that liquid crystal is reflected and reflection
Frequency range also can change therewith, still can be by regulation temperature, liquid crystal in chiral nematic phase in regulation mixed liquid crystal material
The ratio of material so that the pitch of mixed liquid crystal material changes, thus regulate the reflected waveband of infrared reflection films, with suitable
Answer the demand of luminous reflectance and transmission.Owing to the chiral nematic phase liquid crystal in a kind of chirality direction can only launch its corresponding polarized light,
Polarized light for another kind of Sense of polarization has completely through property, so for common natural light, single spiral
The reflectance of the infrared light of the mixed liquid crystal material in direction only up to reach 50%, and the present invention is by infrared total reflection device
In arrange the first regulatory region and the second regulatory region, fill the chiral nematic phase mixed liquid crystal material that the hand of spiral is contrary the most wherein
Material, thus realize the reflection of the infrared light of different polarization direction of rotation, i.e. realize infrared total reflection, reflectance is promoted from 50%
To 100%.
Accompanying drawing explanation
Fig. 1 is the top view of infrared total reflection device；
Fig. 2 is the sectional view of infrared total reflection device；
Fig. 3 is infrared total reflection device partial section view when being in higher use temperature；
Fig. 4 is infrared total reflection device partial section view when being in relatively low use temperature；
Fig. 5 is that infrared total reflection device is less than partial section view during use temperature；
Fig. 6 is the infrared total reflection device reflectance curves in different operating temperature.
Detailed description of the invention
With reference to the top view that Fig. 1-2, Fig. 1 are infrared total reflection device；Fig. 2 is the sectional view of infrared total reflection device；Fig. 1
All it is not drawn to scale with Fig. 2, only schematic diagram, the invention provides a kind of thermal response infrared total reflection device, bag
Include three pieces of transmitting substrates, the respectively first transmitting substrate the 1, second transmitting substrate 2 and the 3rd transmitting substrate 3, described three pieces of printing opacities
Base material forms the first regulatory region 4 and the second regulatory region 5 by encapsulation frame 8 encapsulation between adjacent two pieces of transmitting substrates respectively,
Described first regulatory region 4 and described second regulatory region 5 are all filled with liquid crystal layer, and described liquid crystal layer includes mixed liquid crystal material and use
In the introns 6 of the described thickness of liquid crystal layer of control, described mixed liquid crystal material comprises thermal response liquid crystal material and chiral additives,
Described introns 6 are dispersed in described mixed liquid crystal material, in the use temperature range of described infrared reflection films, described mixed
Closing liquid crystal material is chiral nematic phase, and described mixed liquid crystal material has helical structure, the described mixing of described first regulatory region 4
The hand of spiral of liquid crystal material is contrary, along with temperature changes with the hand of spiral of the described mixed liquid crystal material of described second regulatory region 5
Becoming, the pitch of described mixed liquid crystal material changes.On the surface that described transmitting substrate is relative with another adjacent transmitting substrate
Being provided with parallel both alignment layers 7, described thermal response liquid crystal material is formed in parallel with described printing opacity under the effect of described parallel both alignment layers 7
Aligning of base material.In a preferred embodiment, the pitch of the described mixed liquid crystal material of described first regulatory region 4 is with described
The pitch of the described mixed liquid crystal material of the second regulatory region 5 is identical.The described mixed liquid crystal material of described first regulatory region 4 comprises
The thermal response liquid crystal material of 70～100 mass parts and the right-handed chirality additive of 0.5～3 mass parts, the institute of described second regulatory region 5
State thermal response liquid crystal material and the left-handed chiral additives of 0.5～3 mass parts that mixed liquid crystal material comprises 70～100 mass parts.?
In preferred embodiment, described thermal response liquid crystal material can be the CSV14190S of Xi'an liquid crystal electro-optic Science and Technology Co., Ltd.,
Right-handed chirality additive material can for structural formula liquid crystal material as shown in formula (I),
Left-handed chiral additives material can for structural formula liquid crystal material as shown in formula (II),
With reference to Fig. 2, the thickness of described introns 6 is equal to the thickness of described liquid crystal layer, and the material of described introns 6 should not affect
Liquid crystal property, such as, the material of described introns 6 can be any one in acryl resin, glass, silica resin, described
The shape of introns 6 can be miniature bead or other shapes, and thickness needs the thickness made to change according to infrared reflection films,
Can be a few micrometers to some tens of pm, described introns 6 for controlling the thickness of described liquid crystal layer, prevent described liquid crystal layer along with
The change of variations in temperature generation thickness.
Owing to the circularly polarized light of a kind of polarization direction can only be reflected in a kind of chirality direction, the mixed liquid crystal material of the single hand of spiral
The reflectance of infrared light only up to reach 50%, and the present invention is by arranging the first regulatory region 4 in infrared total reflection device
With the second regulatory region 5, fill the chiral nematic phase mixed liquid crystal material that the hand of spiral is contrary the most wherein, reflection can be reached
Left-handed and the purpose of right-circularly polarized light, thus realize the reflection of the infrared light of different polarization direction of rotation, i.e. realize infrared entirely
Reflection, is promoted to 100% by reflectance from 50%.
With reference to Fig. 3, the use temperature range of described infrared total reflection device is-20 DEG C～50 DEG C, when infrared full-reflector part is in relatively
During high use temperature, when i.e. 20 DEG C～50 DEG C, its partial section view such as Fig. 3, described mixed liquid crystal material is chiral nematic phase,
The pitch of described mixed liquid crystal material is less.According to below equation: λ=P × n, wherein, λ is the chiral nematic phase liquid of single pitch
Brilliant reflection wavelength, n is the average light refractive index of liquid crystal；Δ λ=(ne-no) × P=Δ n × P, wherein, Δ λ is reflection spectrum bandwidth,
Δ n is the difference of birefringence, and when being in higher use temperature, the reflected waveband of described infrared total reflection device is in near-infrared
Wave band, and emission spectrum bandwidth is narrower, far infrared band and visible ray can pass through described infrared reflection films.
With reference to Fig. 4, when infrared full-reflector part is in relatively low use temperature, when i.e.-20 DEG C～20 DEG C, its partial section view is such as
Fig. 4, part mixed liquid crystal material is changed by chiral nematic smectic phase in opposite directions so that the pitch of described mixed liquid crystal material increases,
Also according to λ=P × n and Δ λ=(ne-no) × P=Δ n × P, when being in relatively low use temperature, described infrared total reflection device
Reflected waveband be in far infrared band, and emission spectrum bandwidth is wider, and near infrared band and visible ray can be through described infrared
Reflective film.
With reference to Fig. 5, when infrared full-reflector part is less than when using temperature, and time i.e. less than-20 DEG C, described mixed liquid crystal material is whole
Being changed into smectic phase arrangement, infrared light and visible ray all can be from infrared total reflection device transmissions.When infrared full-reflector part is higher than making
When using temperature, time i.e. higher than 50 DEG C, described mixed liquid crystal material is changed into liquid.Described mixed liquid crystal material changes along with temperature,
There is the change from smectic phase-chiral nematic phase-liquid, and in using temperature range, the pitch of described mixed liquid crystal material
Changing, above-mentioned change is modulation, it is possible to by regulation temperature, change the pitch of described mixed liquid crystal material, from
And realize the regulation of the reflected waveband of described infrared reflection films.
In a preferred embodiment, in a further preferred embodiment, outside saturating of thermal response infrared total reflection device it is located at
Light base material is pasted with protecting film on the outer surface of at least one transmitting substrate, is used for placing infrared external reflection device and frays or impaired.
Be provided with between transmitting substrate and the described protecting film in the outside being located at thermal response infrared total reflection device one layer from viscose, by described guarantor
After cuticula removes, can use by infrared external reflection device being pasted onto somewhere from viscose, more convenient to use.
Present invention also offers the preparation method of thermal response as above infrared total reflection device, comprise the following steps: S1: system
Standby three pieces of transmitting substrates；S2: make on a surface of the first transmitting substrate 1 and a surface of the 3rd transmitting substrate 3 respectively
Standby parallel both alignment layers 7, all prepares parallel both alignment layers 7 on two surfaces of the second transmitting substrate 2；S3: take multiple introns 6
It is positioned over described first transmitting substrate 1 to be provided with on the surface of parallel both alignment layers 7, described second transmitting substrate 2 is placed on described
On introns 6, described first transmitting substrate 1 and described second transmitting substrate 2 are packaged into ground floor liquid crystal cell, then described
Place multiple introns 6 on second transmitting substrate 2, the 3rd transmitting substrate 3 is placed on described introns 6, the described 3rd
Transmitting substrate 3 is provided with the surface of parallel both alignment layers 7 and arranges towards described second transmitting substrate 2, by described second transmitting substrate 2
It is packaged into second layer liquid crystal cell with described 3rd transmitting substrate 3；S4: take the thermal response liquid crystal material and 0.5～3 of 70～100 mass parts
Mass parts right-handed chirality additive mix, obtain mixed liquid crystal materials A, take 70～100 mass parts thermal response liquid crystal material and
0.5～3 mass parts left-handed chiral additiveses mixing, obtain mixed liquid crystal material B, by described mixed liquid crystal materials A and described mixed
Close liquid crystal material B and be injected separately into described ground floor liquid crystal cell and described second layer liquid crystal cell.
Embodiment 1:
Thermal response infrared total reflectivity device is prepared: prepare three pieces of transmitting substrates according to following steps；Respectively at the first transmitting substrate
A surface prepare parallel both alignment layers on a surface of the 3rd transmitting substrate, on two surfaces of the second transmitting substrate all
Prepare parallel both alignment layers；Take multiple introns to be positioned over described first transmitting substrate and be provided with on the surface of parallel both alignment layers, by described
Second transmitting substrate is placed on described introns, and described first transmitting substrate and described second transmitting substrate are packaged into ground floor
Liquid crystal cell, then place multiple introns on described second transmitting substrate, the 3rd transmitting substrate is placed on described introns,
Described 3rd transmitting substrate is provided with the surface of parallel both alignment layers and arranges, by described second transmitting substrate towards described second transmitting substrate
It is packaged into second layer liquid crystal cell with described 3rd transmitting substrate；Take thermal response liquid crystal material and the hands of 0.5 mass parts of 70 mass parts
Property additive A 1 mixes, and obtains mixed liquid crystal materials A, and described thermal response liquid crystal material can be Xi'an liquid crystal electro-optic science and technology share
The CSV14190S of company limited, described chiral additives A1 are the material that structural formula is following:
Taking the thermal response liquid crystal material of 70 mass parts and the chiral additives B1 mixing of 0.5 mass parts, described thermal response liquid crystal material can
For the CSV14190S of Xi'an liquid crystal electro-optic Science and Technology Co., Ltd., described chiral additives B1 material is that structural formula is following
Material:
Obtain mixed liquid crystal material B.Described mixed liquid crystal materials A and described mixed liquid crystal material B are injected separately into described ground floor liquid
Brilliant box and described second layer liquid crystal cell, but it is packaged into airtight liquid crystal cell by frame.
Embodiment 2:
Thermal response infrared total reflectivity device is prepared: prepare three pieces of transmitting substrates according to following steps；Respectively at the one of the first transmitting substrate
Parallel both alignment layers is prepared on a surface of the 3rd transmitting substrate in individual surface, all prepares on two surfaces of the second transmitting substrate
Parallel both alignment layers；Take multiple introns to be positioned over described first transmitting substrate and be provided with on the surface of parallel both alignment layers, by described second
Transmitting substrate is placed on described introns, and described first transmitting substrate and described second transmitting substrate are packaged into ground floor liquid crystal
Box, then place multiple introns on described second transmitting substrate, the 3rd transmitting substrate is placed on described introns, described
3rd transmitting substrate is provided with the surface of parallel both alignment layers and arranges, by described second transmitting substrate and institute towards described second transmitting substrate
State the 3rd transmitting substrate and be packaged into second layer liquid crystal cell；The chirality of the thermal response liquid crystal material and 3 mass parts that take 100 mass parts adds
Adding agent A1 mixing, obtain mixed liquid crystal materials A, described thermal response liquid crystal material can be that Xi'an liquid crystal electro-optic science and technology share is limited
The CSV14190S of company, described chiral additives A1 are the material that structural formula is following:
Taking the thermal response liquid crystal material of 100 mass parts and the chiral additives B1 mixing of 3 mass parts, described thermal response liquid crystal material can
For the CSV14190S of Xi'an liquid crystal electro-optic Science and Technology Co., Ltd., described chiral additives B1 material is that structural formula is following
Material:
Obtain mixed liquid crystal material B.Described mixed liquid crystal materials A and described mixed liquid crystal material B are injected separately into described ground floor liquid
Brilliant box and described second layer liquid crystal cell, but it is packaged into airtight liquid crystal cell by frame.
Embodiment 3:
Thermal response infrared total reflectivity device is prepared: prepare three pieces of transmitting substrates according to following steps；Respectively at the first transmitting substrate
A surface prepare parallel both alignment layers on a surface of the 3rd transmitting substrate, on two surfaces of the second transmitting substrate all
Prepare parallel both alignment layers；Take multiple introns to be positioned over described first transmitting substrate and be provided with on the surface of parallel both alignment layers, by described
Second transmitting substrate is placed on described introns, and described first transmitting substrate and described second transmitting substrate are packaged into ground floor
Liquid crystal cell, then place multiple introns on described second transmitting substrate, the 3rd transmitting substrate is placed on described introns,
Described 3rd transmitting substrate is provided with the surface of parallel both alignment layers and arranges, by described second transmitting substrate towards described second transmitting substrate
It is packaged into second layer liquid crystal cell with described 3rd transmitting substrate；Take thermal response liquid crystal material and the hands of 1.5 mass parts of 85 mass parts
Property additive A 1 mixes, and obtains mixed liquid crystal materials A, and described thermal response liquid crystal material can be Xi'an liquid crystal electro-optic science and technology share
The CSV14190S of company limited, described chiral additives A1 are the material that structural formula is following:
Taking the thermal response liquid crystal material of 85 mass parts and the chiral additives B1 mixing of 1.5 mass parts, described thermal response liquid crystal material can
For the CSV14190S of Xi'an liquid crystal electro-optic Science and Technology Co., Ltd., described chiral additives B1 material is that structural formula is following
Material:
Obtain mixed liquid crystal material B.Described mixed liquid crystal materials A and described mixed liquid crystal material B are injected separately into described ground floor liquid
Brilliant box and described second layer liquid crystal cell, but it is packaged into airtight liquid crystal cell by frame.
Will the preparation thermal response infrared total reflectivity device for preparing of embodiment 3, be respectively placed in-20 DEG C, 20 DEG C, at 50 DEG C,
Carry out infrared external reflection experiment, measure its reflectance spectrum, obtain experimental result such as Fig. 6, in figure A, B, C be respectively 50 DEG C, 20 DEG C,
Infrared external reflection curve at-20 DEG C, it can be seen that at-20 DEG C, the reflection bandwidth of infrared reflection films is 1200nm-1350nm, 20 DEG C
The reflection bandwidth of lower thermal response infrared total reflectivity device is 900nm-1050nm, thermal response infrared total reflectivity device at 50 DEG C
Reflection bandwidth is 770nm-850nm, in the use temperature range of thermal response infrared total reflectivity device, along with the reduction of temperature,
The reflected waveband of the infrared total reflectivity of described thermal response migrates to far infrared band near infrared band, and reflectance is close to 100%.
Chiral additives is different with the mixed liquid crystal material reflected waveband that the different proportion of thermal response liquid crystal material is mixed to form and to temperature
Response difference.
Claims (10)
- null1. a thermal response infrared total reflection device，It is characterized in that，Including three pieces of transmitting substrates，In described three pieces of transmitting substrates, between adjacent two pieces of transmitting substrates, encapsulation forms the first regulatory region and the second regulatory region respectively，Described first regulatory region and described second regulatory region are all filled with liquid crystal layer，Described liquid crystal layer includes mixed liquid crystal material and for controlling the introns of described thickness of liquid crystal layer，Described mixed liquid crystal material comprises thermal response liquid crystal material and chiral additives，Described introns are dispersed in described mixed liquid crystal material，In the use temperature range of described infrared reflection films，Described mixed liquid crystal material is chiral nematic phase，The hand of spiral of the described mixed liquid crystal material of described first regulatory region is contrary with the hand of spiral of the described mixed liquid crystal material of described second regulatory region，Along with temperature changes，The pitch of described mixed liquid crystal material changes.
- Thermal response the most according to claim 1 infrared total reflection device, it is characterised in that the surface that described transmitting substrate is relative with another adjacent transmitting substrate is provided with parallel both alignment layers.
- Thermal response the most according to claim 1 infrared total reflection device, it is characterised in that the pitch of the described mixed liquid crystal material of described first regulatory region is identical with the pitch of the described mixed liquid crystal material of described second regulatory region.
- Thermal response the most according to claim 1 infrared total reflection device, it is characterised in that the described mixed liquid crystal material of described first regulatory region comprises the thermal response liquid crystal material and 0.5 of 70 ~ 100 mass parts~The right-handed chirality additive of 3 mass parts, the described mixed liquid crystal material of described second regulatory region comprises the thermal response liquid crystal material and 0.5 of 70 ~ 100 mass parts~The left-handed chiral additives of 3 mass parts.
- Thermal response the most according to claim 1 infrared total reflection device, it is characterised in that the height of described introns is equal to the thickness of described liquid crystal layer.
- Thermal response the most according to claim 5 infrared total reflection device, it is characterised in that the material of described introns is any one in acryl resin, glass, silica resin.
- Thermal response the most according to claim 1 infrared total reflection device, it is characterised in that be pasted with protecting film on the outer surface of at least one described transmitting substrate in the described transmitting substrate in the outside being located at described thermal response infrared total reflection device.
- Thermal response the most according to claim 7 infrared total reflection device, it is characterised in that be provided with one layer from viscose between described transmitting substrate and the described protecting film in the outside of described thermal response infrared total reflection device.
- 9. the preparation method of the thermal response infrared total reflection device described in an any one of claim 1-8, it is characterised in that comprise the following steps:S1: prepare three pieces of transmitting substrates；S2: prepare both alignment layers respectively on a surface of the first transmitting substrate and a surface of the 3rd transmitting substrate, all prepare both alignment layers on two surfaces of the second transmitting substrate；S3: take multiple introns and be positioned over described first transmitting substrate and be provided with on the surface of both alignment layers, described second transmitting substrate is placed on described introns, described first transmitting substrate and described second transmitting substrate are packaged into ground floor liquid crystal cell, multiple introns are placed again on described second transmitting substrate, 3rd transmitting substrate is placed on described introns, described 3rd transmitting substrate is provided with the surface of both alignment layers and arranges towards described second transmitting substrate, and described second transmitting substrate and described 3rd transmitting substrate are packaged into second layer liquid crystal cell；S4: take thermal response liquid crystal material and the mixing of right-handed chirality additive, obtain mixed liquid crystal materials A, take thermal response liquid crystal material and the mixing of left-handed chiral additives, obtain mixed liquid crystal material B, described mixed liquid crystal materials A and described mixed liquid crystal material B are injected separately into described ground floor liquid crystal cell and described second layer liquid crystal cell.
- The preparation method of thermal response the most according to claim 9 infrared total reflection device, it is characterised in that both alignment layers prepared by described S2 is parallel both alignment layers.
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| CN201610415276.5A CN106019754A (en) | 2016-06-14 | 2016-06-14 | Thermal-response infrared total reflection device and preparing method thereof |
| PCT/CN2017/074690 WO2017215285A1 (en) | 2016-06-14 | 2017-02-24 | Thermal response infrared total reflection device and manufacturing method thereof |
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| WO2018209910A1 (en) * | 2017-05-17 | 2018-11-22 | 华南师范大学 | Preparation method for infrared reflecting device |
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