CN218181251U - Heat-insulation, sun-shading and light-changing liquid crystal film and light-adjusting glass - Google Patents

Abstract

The utility model provides a heat-insulating sunshade becomes light liquid crystal membrane and light control glass, heat-insulating sunshade becomes light liquid crystal membrane includes first base member layer, first conducting layer, liquid crystal layer, second conducting layer, thermal-insulated mixed layer, pastes the layer, the liquid crystal layer bonds between first conducting layer and second conducting layer, the base member layer bonds in the outside of first conducting layer, the thermal-insulated mixed layer bonds in the outside of second conducting layer, paste the layer and thermal-insulated mixed layer integrated into one piece, it is used for pasting heat-insulating sunshade becomes light liquid crystal membrane on attached object surface to paste the layer; the heat insulation mixed layer is an anti-ultraviolet and anti-infrared transparent film layer and is used for blocking infrared rays and absorbing ultraviolet rays. Use thermal-insulated layer as of mixing the utility model discloses thermal-insulated sunshade becomes second base member of light liquid crystal membrane, for traditional thermal-insulated liquid crystal membrane, the utility model discloses saved one deck matrix material, still possessed good thermal-insulated sunshade, the high performance of adjusting luminance of passing through to can also post the use, adapt to multiple application scene.

Description

Heat-insulation, sun-shading and light-changing liquid crystal film and light-adjusting glass

Technical Field

The utility model relates to a liquid crystal film technical field especially relates to a thermal-insulated sunshade becomes liquid crystal film and light control glass.

Background

With the development of modern science and technology, the application field of glass is more and more extensive, and the application in four aspects of building curtain wall, automobile glass, aircraft cabin cover window and door and window is especially obvious, especially on building curtain wall. Use glass behind as the building curtain, the sunlight shines and to make indoor temperature increase by a wide margin after getting into the building, and people can reduce indoor temperature through using the air conditioner at this time, uses the power consumption of glass as the building of curtain can be greater than ordinary wall body building like this. People can stick a heat insulation film on glass to perform heat insulation and sun shading in order to achieve the sun shading effect, but the heat insulation film can not only block infrared rays in sunlight, but also block visible light to a certain extent, so that the indoor brightness is reduced. For the glass of the building curtain wall, not only the infrared rays in the sunlight but also the ultraviolet rays need to be absorbed or blocked, and the excessive ultraviolet radiation can cause damage to the skin, eyes, immune system and the like of a human body. So at present, people can directly paste the ultraviolet-proof film on the glass to play the effect of ultraviolet irradiation prevention.

Although the adhesion of the heat insulating film and the ultraviolet ray preventing film to the glass can solve the problems of the infrared ray and the ultraviolet ray irradiation, the effect is not very good. Along with the improvement of the life quality of people, the requirement on the performance of glass is also improved, the glass can prevent ultraviolet rays and infrared rays and has a dimming function, so that the liquid crystal dimming glass can be used on a curtain wall, and a heat insulation film and an ultraviolet ray prevention film are adhered on the liquid crystal dimming glass, so that the curtain wall glass is high in manufacturing cost, complex in installation and poor in user experience. Although some liquid crystal dimming films with ultraviolet and infrared ray protection function are available on the market, the liquid crystal dimming films have certain defects. For example: some liquid crystal dimming films with ultraviolet resistance and infrared resistance are bonded with an ultraviolet resistance film layer and an infrared resistance film layer on the basis of the original liquid crystal dimming films, so that the liquid crystal dimming films have the ultraviolet resistance and infrared resistance functions, the thickness of the liquid crystal dimming films prepared in the way is larger, and the ultraviolet resistance and infrared resistance effects are not good enough; some liquid crystal dimming films with ultraviolet and infrared resistance are coated with ceramic materials on the original liquid crystal dimming films, so that the liquid crystal dimming films have the ultraviolet and infrared resistance functions, and the liquid crystal dimming films have high cost and high manufacturing process requirements; some liquid crystal light adjusting films with ultraviolet and infrared resistance are manufactured by adding an infrared-proof reflecting layer on the basis of the original liquid crystal light adjusting film, wherein the reflecting layer is manufactured by a magnetron sputtering method, and the manufacturing cost of the manufacturing method is too high.

In order to provide the existing curtain wall glass with good heat insulation and sun shading performance and dimming function, it is an important subject to be solved urgently that a liquid crystal dimming film which can insulate heat and shade sun, can be adhered to the glass, has low manufacturing cost and is ultraviolet and infrared ray resistant is developed.

SUMMERY OF THE UTILITY MODEL

The main objective of the present invention is to provide a heat-insulating and sun-shading liquid crystal film and a light-regulating film, which uses a heat-insulating and mixing layer as the second substrate of the liquid crystal film, and can not increase the thickness of the liquid crystal film while enhancing the heat-insulating and sun-shading functions of the liquid crystal film.

In order to achieve the above object, the utility model discloses a following technical scheme realizes:

the utility model discloses an aspect provides a heat-insulating sunshade becomes light liquid crystal film, it becomes light liquid crystal film to insulate against heat sunshade includes first base member layer, first conducting layer, liquid crystal layer, second conducting layer, separates heat mixing layer, pastes the layer, the liquid crystal layer bonds in first conducting layer with between the second conducting layer, first base member layer bonds in the outside of first conducting layer, separate heat mixing layer bonding in the outside of second conducting layer, paste the layer with separate heat mixing layer integrated into one piece, it is used for pasting the heat-insulating sunshade becomes light liquid crystal film on attached object surface to paste the layer to paste; the heat insulation mixed layer is an anti-ultraviolet and anti-infrared transparent film layer and is used for blocking infrared rays and absorbing ultraviolet rays.

Furthermore, the heat-insulation, sun-shading and light-changing liquid crystal film further comprises a second substrate layer, and the second substrate layer is arranged between the second conducting layer and the heat-insulation mixing layer.

Furthermore, the thickness of the heat-insulating and sun-shading variable light liquid crystal film is 50-100 μm.

Furthermore, the infrared ray blocking rate of the heat insulation mixed layer is 40-99%.

Further, the ultraviolet absorption rate of the heat insulation mixed layer is 80% -99%.

Further, the liquid crystal layer is one of GH liquid crystal, TN liquid crystal, VA liquid crystal, ECB liquid crystal and STN liquid crystal.

Further, the first conductive layer and the second conductive layer are transparent conductive layers.

Further, the first conductive layer and the second conductive layer are ITO conductive layers.

Further, the material of the first substrate layer and the second substrate layer is one of PC, PET, TAC, COC and COP.

Further, the heat insulation mixing layer is formed by mixing an infrared blocking agent, an ultraviolet absorbent and a PET material.

Further, the infrared blocking agent is one or more of cesium tungsten bronze, tin antimony oxide, indium tin oxide, zinc oxide and titanium dioxide.

Further, the ultraviolet absorbent is at least one of UV-531 and UV-327.

Furthermore, the pasting layer is one of a transparent pressure-sensitive adhesive material layer, a silica gel material layer and a water gel material layer.

Furthermore, a protective film is arranged on the outer surface of the pasting layer, the protective film is pasted on the surface of the pasting layer, and the protective film can be torn off from the surface of the pasting layer.

Further, the protection film is a PET release film.

The utility model discloses another aspect provides a dimming glass, include any one in the above-mentioned description thermal-insulated sunshade light variable liquid crystal membrane.

Furthermore, the light adjusting glass comprises a first glass substrate, and the heat-insulating and sun-shading liquid crystal film is fixed on the first glass substrate by being pasted on the surface of the first glass substrate through the pasting layer.

Furthermore, the light-adjusting glass comprises a second glass substrate, a third glass substrate and a hollow interval fixing piece, wherein the hollow interval fixing piece is arranged at the edge position between the second glass substrate and the third glass substrate and fixedly connects the second glass substrate and the third glass substrate together, an accommodating space is formed between the second glass substrate and the third glass substrate, a heat-insulating and sun-shading light-changing liquid crystal film is arranged in the accommodating space, and the heat-insulating and sun-shading light-changing liquid crystal film is fixedly adhered to the inner side surface of the second glass substrate or the inner side surface of the third glass substrate.

Furthermore, two heat-insulation and sun-shading light-variable liquid crystal films are arranged in the accommodating space, and are respectively fixedly adhered to the inner side surface of the second glass substrate and the inner side surface of the third glass substrate, and are not in contact with each other.

Furthermore, the dimming glass comprises a fourth glass substrate and a fifth glass substrate, and the heat-insulating and sun-shading dimming liquid crystal film is arranged between the fourth glass substrate and the fifth glass substrate and is simultaneously pasted and fixed with the fourth glass substrate and the fifth glass substrate.

The utility model has the advantages that:

the utility model provides a heat-insulating sunshade becomes light liquid crystal film directly uses one or two thermal-insulated mixture layers to replace original a base member layer or two base member layers for current thermal-insulated liquid crystal film (current thermal-insulated liquid crystal film generally comprises first base member, first conducting layer, liquid crystal layer, second conducting layer, second base member, heat-insulating film, anti ultraviolet membrane), has reduced the whole thickness of diaphragm body for current thermal-insulated liquid crystal film, also makes heat-insulating sunshade become light liquid crystal film have good separation infrared ray, absorb ultraviolet's performance; the liquid crystal layer uses GH liquid crystal, so that the liquid crystal film has a light and shade dimming function, the heat insulation mixing layer can prevent ultraviolet rays and infrared rays from irradiating the liquid crystal layer, the rapid aging of liquid crystal materials is avoided, and the visual effect of high liquid crystal transmittance and low fog is continuously kept; the transparent pressure-sensitive material, the water gel material or the silica gel material are used for manufacturing the pasting layer, the protective film on the surface of the pasting layer is torn off and then can be directly pasted on the glass, the mode of installing the heat-insulation and sun-shading light-changing liquid crystal film is simple, the operation is rapid, and no glue is needed to be coated between the liquid crystal film and the glass.

Drawings

Fig. 1 is a schematic structural view of a heat-insulating and sun-shading variable light liquid crystal film according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a light control glass according to embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a heat-insulating, sun-shading and light-changing liquid crystal film according to embodiment 2 of the present invention;

fig. 4 is a schematic structural view of a heat-insulating and sun-shading variable light liquid crystal film according to embodiment 3 of the present invention;

fig. 5 is a schematic structural view of a heat-insulating, sun-shading and light-changing liquid crystal film according to embodiment 4 of the present invention;

fig. 6 is a schematic structural view of a light control glass according to embodiment 5 of the present invention;

fig. 7 is a schematic structural view of a light control glass according to embodiment 6 of the present invention;

fig. 8 is a schematic structural view of a light control glass according to embodiment 7 of the present invention.

The reference numbers illustrate:

100: a first substrate layer; 200: a first conductive layer; 300: a liquid crystal layer; 400: a second conductive layer; 500: a heat insulation mixed layer; 501: a pasting layer; 502: a protective film; 600: a second substrate layer; 700: a first glass substrate; 701: a second glass substrate; 702: a third glass substrate; 703: a fourth glass substrate; 704: a fifth glass substrate; 705: a heat-insulating, sun-shading and light-changing liquid crystal film; 800: a hollow spacer fixture; 900: an accommodating space.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; \8230;) are provided in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Example 1

Referring to fig. 1, the present embodiment provides a thermal insulation, sunshade, light-variable liquid crystal film and a light-adjustable glass, the thermal insulation, sunshade, light-variable liquid crystal film includes a first substrate layer 100, a first conductive layer 200, a liquid crystal layer 300, a second conductive layer 400, a thermal insulation mixed layer 500, an adhesive layer 501, and a first glass substrate 700, the liquid crystal layer 300 is adhered between the first conductive layer 200 and the second conductive layer 400, the first substrate layer 100 is adhered on the outer side of the first conductive layer 200, the thermal insulation mixed layer 500 is adhered on the outer side of the second conductive layer 400, the adhesive layer 501 and the thermal insulation mixed layer 500 are integrally formed, and the adhesive layer 501 is used for adhering the thermal insulation, sunshade, light-variable liquid crystal film on the surface of the first glass substrate 700; the heat insulation mixed layer 500 is an anti-ultraviolet and anti-infrared transparent film layer for blocking infrared rays and absorbing ultraviolet rays.

The current liquid crystal dimming film with ultraviolet and infrared ray protection generally has the following three types: 1. the liquid crystal dimming film with the ultraviolet and infrared prevention function is formed by bonding an ultraviolet prevention film layer and an infrared prevention film layer on the original basis of the liquid crystal dimming film, so that the liquid crystal dimming film has the ultraviolet and infrared prevention function, the thickness of the prepared liquid crystal dimming film is larger, and the ultraviolet and infrared prevention effect is not good enough; 2. the liquid crystal dimming film with ultraviolet and infrared resistance is prepared by plating ceramic material on the original liquid crystal dimming film, so that the liquid crystal dimming film has the functions of ultraviolet and infrared resistance, and the liquid crystal dimming film has high cost and high manufacturing process requirement; 3. the liquid crystal light adjusting film with the ultraviolet ray and the infrared ray prevention function is formed by adding a layer of infrared ray prevention reflecting layer on the basis of the original liquid crystal light adjusting film, wherein the reflecting layer is manufactured by a magnetron sputtering method, and the manufacturing method is too high in cost.

In this embodiment, be different from foretell three kinds of liquid crystal dimming membrane that has anti ultraviolet and infrared ray, the utility model discloses directly the thermal-insulated layer 500 that mixes combines on traditional base member layer, promptly thermal-insulated layer 500 that mixes does the utility model discloses liquid crystal membrane's second base member layer makes the utility model discloses a liquid crystal membrane can enough keep traditional liquid crystal membrane structure, also can have good anti ultraviolet and infrared ray's function to the holistic thickness of liquid crystal membrane can not change too greatly, makes moreover thermal-insulated layer 500 that mixes's method is simple, and the preparation flow is simple, and the cost of manufacture is very low.

In the present embodiment, the heat insulating mixed layer 500 is prepared by mixing an infrared blocking agent, an ultraviolet absorber, and a PET material. The infrared blocking agent is one or more of cesium tungsten bronze, tin antimony oxide, indium tin oxide, zinc oxide and titanium dioxide, in the embodiment, the cesium tungsten bronze and the tin antimony oxide are preferably mixed to form the infrared blocking agent, cesium tungsten bronze nanoparticles have strong short-wave near infrared absorption performance and can change the infrared shielding performance along with the change of illumination intensity, the transparency of the PET film cannot be affected by adding a low amount of cesium tungsten bronze nanoparticles into the PET material, and the cesium tungsten bronze nanoparticles have a good infrared blocking effect when the component content of the cesium tungsten bronze nanoparticles in the PET film is generally 5% -30%. The tin antimony oxide nanoparticles are particles with low visible light absorptivity and high mid-infrared ray reflectivity. The tin antimony oxide nanoparticles and the cesium tungsten bronze nanoparticles are mixed and added in the PET material, so that the heat insulation mixed layer 500 has a good infrared ray blocking effect, and a good heat insulation effect is achieved. The ultraviolet absorber is generally one of UV-531 and UV-327. In the present embodiment, UV-531 is preferably selected, and UV-531 is a very good UV absorbing material. The film prepared by mixing the cesium tungsten bronze nanoparticles, the tin antimony oxide nanoparticles and the UV-531 in the PET material is the heat insulation mixed layer 500, and not only has good infrared ray blocking performance, but also has good ultraviolet ray absorption performance, and also has the characteristics of the PET film. The traditional heat-insulating liquid crystal film is generally made by sticking an ultraviolet ray blocking film and an infrared ray blocking film on a liquid crystal film, so that the thickness of the original liquid crystal film is increased, and the transparency of the liquid crystal film is easily influenced by the two stuck films. The conventional structure of the liquid crystal film generally consists of a first substrate, a first conductive layer 200, a liquid crystal material layer, a second conductive layer 400 and a second substrate, and the heat insulation and sun shading effects of the liquid crystal film are relatively poor. However, the heat-insulating, sun-shading and light-changing liquid crystal film in the embodiment is greatly different from the traditional heat-insulating liquid crystal film: the heat-insulating mixed layer 500 is directly used as a second substrate of the whole liquid crystal film, which is equivalent to the second substrate made into a substrate film with heat-insulating and sun-shading functions. The utility model provides a thermal-insulated sunshade becomes light liquid crystal film can enough keep original liquid crystal film thickness, has also increased good separation infrared ray and absorption ultraviolet's performance. The preparation of the thermal insulation mixed layer 500 is similar to the preparation of a PET film, and firstly, raw materials are prepared, wherein the raw materials comprise the following components in percentage by weight: 15% of cesium tungsten bronze nanoparticles, 3% of tin antimony oxide nanoparticles, UV-5312%, 79% of PET resin and 1% of light stabilizer. After the raw materials are prepared, the raw materials are put into a mixer according to the proportion and stirred, the subsequent steps of the obtained mixed material are manufactured according to the procedure of manufacturing the PET film, but the processing temperature, time and size need to be adjusted according to the actual production, and the manufactured film is the required film and can be used for manufacturing the heat insulation mixed layer 500.

In the present embodiment, the thickness of the thermal insulation and sunshade light variable liquid crystal film is controlled within a range of 50 μm to μm, and preferably, the thickness of the thermal insulation and sunshade light variable liquid crystal film is made to be 80 μm. The wavelength use range of the heat insulation mixed layer 500 is 385nm-1.2 mu m, the lowest infrared ray blocking rate of the heat insulation mixed layer 500 is 40%, and the highest infrared ray blocking rate can reach 99%. The ultraviolet absorption rate of the heat insulation mixed layer 500 can reach more than 80%.

In this embodiment, an adhesive layer 501 is disposed on the outermost side of the thermal insulation mixed layer 500, the adhesive layer 501 is one of a transparent pressure-sensitive adhesive material layer, a silicone material layer, and a water-soluble adhesive material layer, in this embodiment, the adhesive layer 501 is made of a water-soluble adhesive material, and the water-soluble adhesive material has good adhesive performance. Thermal-insulated sunshade becomes light liquid crystal film and mainly uses on curtain wall glass, when needs reequip the glass on the curtain of having now, only need paste layer 501 facing to glass tiling paste can, use very convenient and fast.

As shown in fig. 1, in this embodiment, the first substrate layer 100 is made of a flexible ultraviolet-proof PET substrate, and an ultraviolet-proof PET material is used as the first substrate of the thermal insulation, sun-shading and light-changing liquid crystal film, so that the first substrate layer 100 can have the characteristics of the PET material and can also meet the requirement of ultraviolet-proof. The film made of the PET material has high toughness, high strength and elastic coefficient, high impact strength and wide use temperature range, and the film made of the PET material has good fatigue resistance and low deformation after molding. Inside and the surface of flexible PET film can not be because of the cloudy or cloudy outward appearance that light scattering caused, the haze of itself is close 0, has high definition transparency, sees through the film and sees that the thing colour outside the film can not distort, can show external thing and chew real color. The ultraviolet absorbent is added into the PET master batch material, so that the prepared PET film has good ultraviolet blocking performance.

In this embodiment, an ITO conductive layer is plated on the surface of the first substrate layer 100, which is attached to the liquid crystal layer 300, to form the first conductive layer 200, and an ITO conductive layer is plated on the surface of the thermal insulation mixed layer 500, which is attached to the liquid crystal layer 300, to form the second conductive layer 400. The first conductive layer 200 is a transmitting electrode, and the second conductive layer 400 is a receiving electrode, so that a stable electric field is formed between the first conductive layer 200 and the second conductive layer 400, and thus the liquid crystal layer 300 can be stably driven to change states. The heat-insulation and sun-shading dimming liquid crystal film further comprises a controller, wherein the controller is in circuit connection with the first conducting layer 200 and the second conducting layer 400, and then the controller can control the electric field states of the first conducting layer 200 and the second conducting layer 400, so that the heat-insulation and sun-shading dimming liquid crystal film is subjected to dimming.

In this embodiment, GH liquid crystal is preferably used as the liquid crystal material of the liquid crystal layer 300, and of course, one of TN liquid crystal, VA liquid crystal, ECB liquid crystal, and STN liquid crystal can be selected as the liquid crystal material of the liquid crystal layer 300 according to display requirements. The liquid crystal layer 300 uses a GH Guest-Host type dye liquid crystal, a Guest-Host relationship is formed by dissolving a dichroic dye in the liquid crystal, the liquid crystal is Host (Host), the dichroic dye is Guest (Guest), under the action of an external electric field, the Guest-Host type dichroic dye rotates along with the liquid crystal molecules, the dichroic dye has the property of anisotropic light absorbance, the dichroic dye can be divided into a positive (P-type) dichroic dye and a negative (N) -type dichroic dye according to the orientation relationship of the absorption axis of the dye molecules and the molecular axis, and when the E vector of light is vertical to the optical axis of the dye, the light basically passes through; however, when the E vector of the light is parallel to the optical axis of the dye, the light is substantially absorbed, the dye is a positive dichroic dye, and the negative dichroic dye is opposite to the positive dichroic dye, and absorbs or transmits the light according to the characteristics of the positive and negative dyes, thereby changing the transmittance of the liquid crystal layer 300, so the liquid crystal becomes a guest-host (GH) type liquid crystal, and since the guest-host type liquid crystal can selectively transmit the light by using the dichroic dye without attaching a polarizer, the performance requirements of the liquid crystal layer 300 can be satisfied, the dimming adjustment of the liquid crystal layer 300 can be realized, the high transmittance effect can be maintained, and the color of the liquid crystal layer 300 in a dark state can be adjusted by the color of the dichroic dye.

Referring to fig. 2, fig. 2 is a schematic structural view of the heat-insulating, sun-shading, light-changing liquid crystal film of the present embodiment adhered to a single glass sheet. When the heat-insulating, sun-shading and dimming liquid crystal film is attached to a single piece of glass, the adhesive layer 501 is attached and fixed to the first glass substrate 700, and the heat-insulating, sun-shading and dimming liquid crystal film and the first glass substrate 700 are combined to form a piece of complete dimming glass. Through paste layer 501 back paste on glass, it is very convenient to use, and the transformation of current curtain wall glass very much only need paste on original present glass's basis thermal-insulated sunshade becomes liquid crystal film, can make original ordinary curtain wall glass just become the curtain wall glass who has the light control function.

Example 2

As shown in fig. 3, the present embodiment provides a heat-insulating and sun-shading variable light liquid crystal film, which includes a first substrate layer 100, a first conductive layer 200, a liquid crystal layer 300, a second conductive layer 400, and a heat-insulating mixed layer 500, wherein the liquid crystal layer 300 is bonded between the first conductive layer 200 and the second conductive layer 400, the first substrate layer 100 is bonded on the outer side of the first conductive layer 200, and the heat-insulating mixed layer 500 is bonded on the outer side of the second conductive layer 400; the heat insulation mixed layer 500 is an anti-ultraviolet and anti-infrared transparent film layer; the first conductive layer 200 and the second conductive layer 400 are both transparent conductive layers. This embodiment is different from embodiment 1 in two points: the first point is that the liquid crystal layer 300 is made of different liquid crystal materials, and TN liquid crystal is selected as the material of the liquid crystal layer 300 in the embodiment; the second point is that the layer 501 of pasting on the mixed layer of thermal-insulated 500 is transparent pressure sensitive adhesive material layer to paste the surface department of layer 501 and be equipped with one deck protection film 502, protection film 502 is PET's release film, protection film 502 is pasted paste layer 501 on the surface, protection film 502 can follow paste the surface of layer 501 and tear off.

The liquid crystal layer 300 is made of TN liquid crystal, the TN liquid crystal is a twisted nematic liquid crystal material, the twisting angle is 90-110 degrees, and the liquid crystal layer has optical rotation. When TN liquid crystal is used as a material of the liquid crystal layer 300, polarization layers are required to be arranged on the side edges of the first conductive layer 200 and the second conductive layer 400, incident light forms polarized light after passing through the polarization layers on the outer sides, the twisted liquid crystal rotates when the polarized light passes through the liquid crystal layer 300, the rotated polarized light can smoothly pass through the polarization layers on the inner sides when the light absorption axes of the two polarization layers are perpendicular to each other, and at the moment, the heat-insulation and sun-shading light-changing liquid crystal film has high light transmittance. When an electric field is applied to the liquid crystal layer 300, the liquid crystal molecules tend to be in a non-twisted state from a twisted state, and the polarization direction of the corresponding polarized layer formed through the outer side is maintained, so that the liquid crystal film can not completely penetrate through the polarized layer positioned at the inner side, and the heat-insulating and sun-shading variable light liquid crystal film has low light transmittance. The TN liquid crystal can also be used for well adjusting the brightness and darkness.

The heat insulation mixed layer 500 is manufactured as in example 1, and a transparent glue material layer, namely the adhesive layer 501, is coated on the outer side of the manufactured PET film. A protective film 502 is adhered on the adhesive layer 501, and the protective film 502 mainly protects the adhesive layer 501 and prevents the adhesive layer 501 from being scratched during transportation of the heat-insulating, sun-shading and light-changing liquid crystal film. When the heat-insulation and sun-shading variable light liquid crystal film is required to be adhered to curtain wall glass, the protective film 502 is only required to be torn from the adhesive layer 501, and then the adhesive layer 501 is forcibly scraped and pressed against the glass to complete adhesion.

Example 3

As shown in fig. 4, the present embodiment provides a thermal insulation and sunshade variable light liquid crystal film, which includes a first conductive layer 200, a liquid crystal layer 300, a second conductive layer 400, and two thermal insulation mixed layers 500, compared to embodiment 1, the present embodiment replaces the first substrate layer 100 with the thermal insulation mixed layer 500, that is, the structural layers of the present embodiment are the thermal insulation mixed layer 500, the first conductive layer 200, the liquid crystal layer 300, the second conductive layer 400, and the thermal insulation mixed layer 500 in sequence, which is equivalent to that the two thermal insulation mixed layers 500 are respectively used as the first substrate and the second substrate of the thermal insulation and sunshade variable light liquid crystal film in the present embodiment. In this embodiment, GH liquid crystal is used as a material for the liquid crystal layer 300 as in embodiment 1, and ITO conductive layers are used as the first conductive layer 200 and the second conductive layer 400 as in embodiment 1. The silica gel layer is arranged on the outer sides of the two heat insulation mixing layers 500 to serve as the adhesive layer 501, so that the heat insulation and sun shading variable liquid crystal film does not need to be divided into the front side and the back side, has double effects of blocking infrared rays and absorbing ultraviolet rays, and is better in heat insulation and sun shading effects.

Example 4

Referring to fig. 5, in addition to example 1, the present embodiment provides a thermal insulation and sunshade light-variable liquid crystal film, which includes a first substrate layer 100, a first conductive layer 200, a liquid crystal layer 300, a second conductive layer 400, a second substrate layer 600, a thermal insulation mixed layer 500, and an adhesive layer 501, wherein the liquid crystal layer 300 is adhered between the first conductive layer 200 and the second conductive layer 400, the first substrate layer 100 is adhered to an outer side of the first conductive layer 200, the second substrate layer 600 is adhered to an outer side of the second conductive layer 400, the thermal insulation mixed layer 500 is adhered to an outer side of the second substrate layer 600, and the adhesive layer 501 and the thermal insulation mixed layer 500 are integrally formed.

In this embodiment, the second substrate layer 600 and the first substrate layer 100 are made of the same material, the second conductive layer 400 is plated on the second substrate layer 600, the thermal insulation mixed layer 500 and the second substrate layer 600 are bonded and fixed by OCA optical cement, and the bonding layer 501 is made of a water-based adhesive material. The heat-insulating and sun-shading variable liquid crystal film provided by the embodiment has one more substrate layer than the heat-insulating and sun-shading variable liquid crystal film provided by the embodiment 1, so the thickness of the heat-insulating and sun-shading variable liquid crystal film is slightly larger than that of the embodiment 1, but the infrared ray resistance and the ultraviolet ray resistance of the heat-insulating and sun-shading variable liquid crystal film are not influenced.

Example 5

Referring to fig. 6, in addition to embodiment 1, the present embodiment provides a light control glass, which includes a second glass substrate 701, a third glass substrate 702, and a hollow space fixing member 800, wherein the hollow space fixing member 800 is disposed at an edge position between the second glass substrate 701 and the third glass substrate 702 and fixedly connects the second glass substrate 701 and the third glass substrate 702 together, a receiving space 900 is formed between the second glass substrate 701 and the third glass substrate 702, one heat-insulating and sun-shading light-changing liquid crystal film 705 is disposed in the receiving space 900, the heat-insulating and sun-shading light-changing liquid crystal film 705 is fixedly attached to an inner side surface of the second glass substrate 701, and of course, the heat-insulating and sun-shading light-changing liquid crystal film 705 can also be fixedly attached to an inner side surface of the third glass substrate 702.

In this embodiment, the heat-shielding and sun-shading variable liquid crystal film 705 is the heat-shielding and sun-shading variable liquid crystal film in example 1. The second glass substrate 701 and the third glass substrate 702 are fixed and spaced by the hollow space fixing member 800 to form a hollow glass plate, and the heat-insulating and sun-shading light-changing liquid crystal film 705 is adhered in the accommodating space 900, so that when the light-adjusting glass of the present embodiment is manufactured, the glass substrate does not press the heat-insulating and sun-shading light-changing liquid crystal film 705, and the heat-insulating and sun-shading light-changing liquid crystal film 705 is not crushed.

Example 6

Referring to fig. 7, in addition to example 5, the present embodiment proposes a light control glass, which has two heat-insulating and sun-shading liquid crystal films 705, wherein the two heat-insulating and sun-shading liquid crystal films 705 are disposed in the accommodating space 900, the two heat-insulating and sun-shading liquid crystal films 705 are respectively adhered and fixed on the inner side surface of the second glass substrate 701 and the inner side surface of the third glass substrate 702, and the two heat-insulating and sun-shading liquid crystal films are not in contact with each other.

Compared with the embodiment 5, the embodiment uses two heat-insulation and sun-shading variable light liquid crystal films 705, and the two heat-insulation and sun-shading variable light liquid crystal films 705 are not in contact with each other, so that the dimming glass of the embodiment can be increased to have a larger dimming range of brightness under the condition that the dimming glass is in a hollow state, and the dimming glass has better ultraviolet and infrared ray resistance.

Example 7

Referring to fig. 8, in addition to example 3, the present embodiment proposes a light control glass, which includes a fourth glass substrate 703 and a fifth glass substrate 704, and the heat-insulating and sun-shading liquid crystal film 705 is disposed between the fourth glass substrate 703 and the fifth glass substrate 704 and is simultaneously bonded and fixed to both.

In this embodiment, the heat-insulating and sun-shading variable light liquid crystal film 705 is sandwiched and fixed between the fourth glass substrate 703 and the fifth glass substrate 704. The light control glass of the present embodiment uses the heat-insulation and sun-shading variable light liquid crystal film proposed in embodiment 3, and both sides of the heat-insulation and sun-shading variable light liquid crystal film proposed in embodiment 3 can be adhered to the surfaces of the glass substrates, so that the light control glass of the present embodiment has a better stabilizing effect on the manufacturing of the light control glass, and the heat-insulation and sun-shading variable light liquid crystal film 705 can be clamped and fixed more stably by two glass substrates.

It should be noted that the technical solutions of the embodiments of the present invention can be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are combined and contradictory or can not be realized, one should think that the combination of the technical solutions does not exist, and it is not within the protection scope of the present invention.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structural changes made by the contents of the specification and the drawings, or the direct or indirect application in other related technical fields, are included in the same way in the protection scope of the present invention.

Claims (20)

1. The heat-insulation and sun-shading variable liquid crystal film is characterized by comprising a first substrate layer, a first conducting layer, a liquid crystal layer, a second conducting layer, a heat-insulation and sun-shading variable liquid crystal layer and an adhesion layer, wherein the liquid crystal layer is adhered between the first conducting layer and the second conducting layer, the first substrate layer is adhered to the outer side of the first conducting layer, the heat-insulation and sun-shading variable liquid crystal layer is adhered to the outer side of the second conducting layer, the adhesion layer and the heat-insulation and heat-shading variable liquid crystal layer are integrally formed, and the adhesion layer is used for adhering the heat-insulation and sun-shading variable liquid crystal film to the surface of an attached object; the heat insulation mixing layer is an anti-ultraviolet and anti-infrared transparent film layer and is used for blocking infrared rays and absorbing ultraviolet rays.

2. The thermal insulating and solar shading dimmer liquid crystal film of claim 1, further comprising a second substrate layer disposed between the second electrically conductive layer and the thermal insulating and mixing layer.

3. The liquid crystal film according to claim 1, wherein the thickness of the liquid crystal film is 50 μm to 100 μm.

4. The heat-insulating and sun-shading variable light liquid crystal film as claimed in claim 1, wherein the infrared ray blocking rate of the heat-insulating mixed layer is 40% -99%.

5. The liquid crystal film as claimed in claim 1, wherein the mixed heat-insulating layer has an ultraviolet absorptivity of 80-99%.

6. The heat-insulating, sun-shading and dimming liquid crystal film according to claim 1, wherein the liquid crystal layer is one of GH liquid crystal, TN liquid crystal, VA liquid crystal, ECB liquid crystal and STN liquid crystal.

7. The liquid crystal film of claim 1, wherein the first and second electrically conductive layers are transparent electrically conductive layers.

8. The liquid crystal film of claim 1, wherein the first and second electrically conductive layers are IT0 electrically conductive layers.

9. The liquid crystal film as claimed in claim 2, wherein the material of the first substrate layer and the second substrate layer is one of PC, PET, TAC, COC and COP.

10. The liquid crystal film as claimed in claim 1, wherein the heat-insulating mixed layer is made by mixing an infrared blocking agent, an ultraviolet absorber and a PET material.

11. The liquid crystal film of claim 10, wherein the infrared blocking agent is one or more of cesium tungsten bronze, tin antimony oxide, indium tin oxide, zinc oxide, titanium dioxide.

12. The liquid crystal film of claim 10, wherein the ultraviolet absorber is at least one of UV-531 and UV-327.

13. The liquid crystal film as claimed in claim 1, wherein the adhesive layer is one of a transparent pressure sensitive adhesive material layer, a silica gel material layer, and a water gel material layer.

14. The liquid crystal film as claimed in claim 1, wherein a protective film is disposed on the outer surface of the adhesive layer, the protective film is adhered to the surface of the adhesive layer, and the protective film can be peeled off from the surface of the adhesive layer.

15. The liquid crystal film as claimed in claim 14, wherein the protective film is a release film of PET.

16. A light control glass, characterized by comprising the heat-insulating and sun-shading variable light liquid crystal film according to any one of claims 1 to 15.

17. The light control glass of claim 16, wherein the light control glass comprises a first glass substrate, and the heat-insulating and sun-shading variable light liquid crystal film is fixed on the first glass substrate through the adhesive layer adhered on the surface of the first glass substrate.

18. A light control glass as claimed in claim 16, wherein the light control glass comprises a second glass substrate, a third glass substrate, and a hollow space fixing member, the hollow space fixing member is disposed at an edge position between the second glass substrate and the third glass substrate and fixedly connects the second glass substrate and the third glass substrate together, a receiving space is formed between the second glass substrate and the third glass substrate, a heat and sun shielding liquid crystal film is disposed in the receiving space, and the heat and sun shielding liquid crystal film is adhered and fixed on an inner side surface of the second glass substrate or an inner side surface of the third glass substrate.

19. A light control glass as claimed in claim 18, wherein two said heat and sun shading liquid crystal films are disposed in said accommodation space, and are respectively adhered and fixed on the inner side surface of said second glass substrate and the inner side surface of said third glass substrate, and said two said heat and sun shading liquid crystal films are not in contact with each other.

20. A light control glass as claimed in claim 16, wherein the light control glass comprises a fourth glass substrate and a fifth glass substrate, and the heat-insulating and sun-shading liquid crystal film is arranged between the fourth glass substrate and the fifth glass substrate and is simultaneously bonded and fixed with the fourth glass substrate and the fifth glass substrate.

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