CN217739668U

CN217739668U - PDLC light modulation film and light modulation glass

Info

Publication number: CN217739668U
Application number: CN202221696526.4U
Authority: CN
Inventors: 吴永隆; 孙瑞; 刘西蒙
Original assignee: Shanghai Longsheng Photoelectric New Material Co ltd
Current assignee: Shanghai Longsheng Photoelectric New Material Co ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-11-04
Anticipated expiration: 2032-07-01

Abstract

The application provides a PDLC membrane and light control glass that adjusts luminance relates to PDLC membrane technical field that adjusts luminance. The PDLC light modulation film comprises: the first substrate layer, the first conducting layer, the polymer dispersed liquid crystal layer, the second conducting layer and the second substrate layer are sequentially laminated from top to bottom; the polymer dispersed liquid crystal layer is used for adjusting the transparency of the PDLC light adjusting film; wherein the transparency comprises a transparent state and an astigmatic state; the first conducting layer and the second conducting layer are used for controlling the polymer dispersed liquid crystal layer to be in a transparent state when the PDLC dimming film is electrified; and the first substrate layer and the second substrate layer are composed of a substrate with preset optical properties. The PDLC membrane of adjusting luminance that this application embodiment provided constitutes first substrate layer and second substrate layer through the substrate that adopts preset optical property and can solve current PDLC membrane of adjusting luminance and appear the problem of rainbow line.

Description

PDLC light modulation film and light modulation glass

Technical Field

The application relates to the technical field of PDLC (polymer dispersed liquid crystal) dimming films, in particular to a PDLC dimming film and dimming glass.

Background

At present, a common PDLC (polymer dispersed liquid crystal) dimming film is generally a structure of a PET (Polyethylene terephthalate) substrate, a conductive layer, a polymer dispersed liquid crystal layer, a conductive layer and a PET substrate layer, and due to a production process of the PET film (such as a production process of longitudinal extension followed by transverse extension, a surface thickness difference of the PET film, a surface primer and the like), the PET film is an optically anisotropic film, so that colorful rainbow stripes inevitably appear under sunlight irradiation, and the appearance of the rainbow stripes affects a visual effect of the PDLC dimming film and is poor in customer experience.

SUMMERY OF THE UTILITY MODEL

An object of this application embodiment is to provide a PDLC membrane and light control glass for solve the problem that rainbow line appears in current PDLC membrane of adjusting luminance.

Mainly comprises the following aspects:

in a first aspect, an embodiment of the present application provides a PDLC light modulation film, including: the first substrate layer, the first conducting layer, the polymer dispersed liquid crystal layer, the second conducting layer and the second substrate layer are sequentially laminated from top to bottom;

the polymer dispersed liquid crystal layer is used for adjusting the transparency of the PDLC light adjusting film; wherein the transparency comprises a transparent state and an astigmatic state;

the first conducting layer and the second conducting layer are used for controlling the polymer dispersed liquid crystal layer to be in a transparent state when the PDLC dimming film is electrified; and

the first base material layer and the second base material layer are composed of base materials with preset optical properties.

The switching of the transparent state and the astigmatism state of PDLC membrane can be realized to first conducting layer, polymer dispersed liquid crystal layer and second conducting layer in the PDLC membrane that this application embodiment provided, and first substrate layer and second substrate layer comprise the substrate of preset optical property, and the substrate of preset optical property can effectively prevent the production of rainbow line phenomenon, improves customer experience.

In an optional implementation manner, the preset optical property includes a preset phase difference;

the first base material layer and the second base material layer are composed of base materials with preset phase difference; the phase difference is a phase difference value when a plurality of light beams irradiate the first base material layer or the second base material layer.

In the above implementation manner, the first substrate layer and the second substrate layer are composed of the substrate with the preset phase difference, and when the light beam irradiates the substrate with the preset phase difference, the speed on the vibration surface is unchanged, so that the rainbow streak phenomenon can be effectively prevented.

In an optional implementation manner, the preset phase difference is less than 20nm.

In the implementation mode, the preset phase difference is less than 20nm, so that the speed of the light beam irradiating on the vibration surface of the base material is equivalent to constant, and the rainbow streak phenomenon can be effectively prevented.

In an optional implementation manner, the thickness of each of the first substrate layer and the second substrate layer ranges from 25 μm to 300 μm.

In the implementation mode, the thickness of the first base material layer and the thickness of the second base material layer are both 25-300 microns, so that the thickness of the PDLC light modulation film can be effectively reduced.

In an optional implementation manner, the haze of each of the first substrate layer and the second substrate layer is less than 2%.

In the implementation mode, the haze of the first base material layer and the haze of the second base material layer are both less than 2%, so that the transparency of the PDLC light modulation film is ensured.

In an optional implementation manner, the first substrate layer and the second substrate layer are formed by one of a PC substrate, a COP substrate, and a PI substrate.

In the above embodiment, the PC film, the COP film, and the PI film are all substrate films having a low phase difference, and the occurrence of the rainbow streak phenomenon can be effectively prevented.

In an alternative implementation, the predetermined optical property includes a first predetermined reflectivity and a second predetermined reflectivity;

the first base material layer is a base material with the first preset reflectivity, and the second base material layer is a base material with the second preset reflectivity; the first preset reflectivity shows the same first reflectivity for all wave bands of light beams, and the second preset reflectivity shows the same second reflectivity for all wave bands of light beams.

In the above implementation manner, the first substrate layer is a substrate having the same first reflectivity for all-band light beams, and the second substrate layer is a substrate having the same second reflectivity for all-band light beams, so that the rainbow streak phenomenon can be effectively prevented.

In an alternative implementation, the polymer dispersed liquid crystal layer includes a photosensitive polymer and a liquid crystal;

the liquid crystal is configured to adjust a refractive index of the liquid crystal by a direction of an electric field applied by the first conductive layer and the second conductive layer; and

the polymer dispersed liquid crystal layer is configured to assume a transparent state when refractive indexes of the photosensitive polymer and the liquid crystal are the same.

In the above implementation, the polymer dispersed liquid crystal layer may have an electrically controlled optical switching characteristic under the action of the applied electric field direction of the first conductive layer and the second conductive layer.

In an alternative implementation, the first conductive layer and the second conductive layer are formed of one of a silver-plated conductive layer, a nano-lead conductive layer, a metal conductive layer, and a metal oxide conductive layer.

In the implementation manner, the first conductive layer and the second conductive layer of multiple types can provide good static conductive performance, so that the PDLC light modulation film can realize switching between a transparent state and a light scattering state.

In a second aspect, embodiments of the present application provide a light control glass, including: a first light-transmitting plate, a second light-transmitting plate and the PDLC light modulation film of the first aspect;

the PDLC light adjusting film is arranged between the first light-transmitting plate and the second light-transmitting plate.

The light control glass that this application embodiment provided, PDLC membrane of adjusting luminance sets up between first light-passing board and second light-passing board, and PDLC membrane of adjusting luminance can be consolidated to first light-passing board and second light-passing board, and the hardness of reinforcing light control glass also can realize light control glass's sound insulation and heat insulation.

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a first PDLC light modulation film provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a second PDLC light modulation film provided in this embodiment of the present application;

fig. 3 is a schematic structural diagram of a third PDLC light modulation film provided in this embodiment of the present application;

fig. 4 is a schematic structural diagram of a fourth PDLC dimming film provided in an embodiment of the present application;

fig. 5 is a schematic structural diagram of a light control glass provided in an embodiment of the present application.

Icon: 100-a first PDLC dimming film; 110-a first substrate layer; 120-a first conductive layer; 130-a polymer dispersed liquid crystal layer; 140-a second conductive layer; 150-a second substrate layer; 200-a second PDLC dimming film; 210-a first glue layer; 220-a first PET layer; 230-a second PET layer; 240-second glue layer; 300-a third PDLC light modulation film; 400-a fourth PDLC film of adjusting luminance; 500-dimming glass; 510-a first light-transmitting panel; 520-a second light-transmitting panel.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the application product usually visits when in use, which are merely for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.

Throughout the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect through an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

The applicant found in the course of the study: the existing PDLC (polymer dispersed liquid crystal) dimming film inevitably has colorful rainbow patterns under the irradiation of sunlight, and the appearance of the rainbow patterns can influence the visual effect of the PDLC dimming film and influence the experience of customers.

Based on this, this application embodiment provides a PDLC membrane of adjusting luminance, this PDLC membrane of adjusting luminance includes from last to the first substrate layer that stacks gradually down, first conducting layer, polymer dispersed liquid crystal layer, second conducting layer and second substrate layer, wherein, first conducting layer, polymer dispersed liquid crystal layer and second conducting layer can realize PDLC membrane of adjusting luminance's transparent state and astigmatic state's switching, first substrate layer and second substrate layer comprise the substrate of preset optical property, the substrate of preset optical property can effectively prevent the production of rainbow line phenomenon, improve customer experience.

The embodiment of the present application provides a first PDLC light modulation film 100, please refer to fig. 1, fig. 1 is a schematic structural diagram of the first PDLC light modulation film provided in the embodiment of the present application, and the first PDLC light modulation film 100 includes: the liquid crystal display panel includes a first substrate layer 110, a first conductive layer 120, a polymer dispersed liquid crystal layer 130, a second conductive layer 140, and a second substrate layer 150 stacked in this order from top to bottom.

The polymer dispersed liquid crystal layer 130 is used to adjust the transparency of the first PDLC light adjusting film 100, and the transparency includes a transparent state and an astigmatic state.

Illustratively, the polymer dispersed liquid crystal layer 130 may be a liquid crystal dispersed in a small droplet of micrometer order in an organic solid polymer matrix, and since the optical axis of the small droplet composed of liquid crystal molecules is in a free orientation, its refractive index does not match with that of the matrix, and light is strongly scattered by the droplet while passing through the matrix to assume an astigmatic state, wherein the astigmatic state may be an opaque milky white state or a translucent state.

The first conductive layer 120 and the second conductive layer 140 are used to control the polymer dispersed liquid crystal layer 130 to be in a transparent state when the first PDLC dimming film 100 is powered on.

Illustratively, the first conductive layer 120 and the second conductive layer 140 may be metal conductive layers formed by various coating methods, conductive tapes, or other special coating materials, and the first conductive layer 120 and the second conductive layer 140 may provide good static conductive performance. In one example, when the first PDLC dimming film 100 is not powered on, the liquid crystal molecules in the polymer dispersed liquid crystal layer 130 are in an irregular scattering state, and when the light is scattered, the polymer dispersed liquid crystal layer 130 is in an astigmatic state; when the first PDLC dimming film 100 is powered on, the liquid crystal molecules in the polymer dispersed liquid crystal layer 130 are in an aligned state, and at this time, light can freely penetrate through the liquid crystal molecules, so that the polymer dispersed liquid crystal layer 130 is in a transparent state.

The first substrate layer 110 and the second substrate layer 150 are made of a substrate having predetermined optical properties.

Illustratively, the first substrate layer 110 and the second substrate layer 150 are made of a substrate with a preset optical property, and the substrate with the preset optical property can adjust the phase difference or the reflectivity of the light beam, so that the generation of the rainbow texture phenomenon can be effectively prevented, and the customer experience is improved.

Optionally, the preset optical property includes a preset phase difference, and the first substrate layer 110 and the second substrate layer 150 are made of a substrate with the preset phase difference, where the phase difference is a difference between phases of the plurality of light beams irradiated onto the first substrate layer 110 or the second substrate layer 150.

For example, a PET substrate is adopted in the existing PDLC light modulation film, wherein the PET substrate is a material with birefringence characteristics and has a phase difference, when white light passes through the PET substrate, the speed on the vibration plane of the PET substrate changes, the phase difference is formed between different light beams, and the larger the phase difference is, the more light beams appear, and thus rainbow fringes are generated.

The substrate with the preset phase difference can be a low-phase-difference substrate, and when the light beam irradiates the low-phase-difference substrate, the speed on the vibration surface is equivalent to constant, so that the generation of the rainbow streak phenomenon can be effectively prevented.

Optionally, the predetermined phase difference is less than 20nm.

Illustratively, the preset phase difference can be at most 20nm, the preset phase difference can also be 10nm, and the preset phase difference being less than 20nm can ensure that the speed of the light beam irradiating the vibration surface on the base material is equivalent to constant, and can effectively prevent the generation of the rainbow streak phenomenon.

Optionally, the thicknesses of the first substrate layer 110 and the second substrate layer 150 range from 25 μm to 300 μm.

For example, the thickness of the first substrate layer 110 may be 25 μm, the thickness of the first substrate layer 110 may be 200 μm, and the thickness of the first substrate layer 110 may be 300 μm.

Illustratively, the thickness of the second substrate layer 150 may be 25 μm, the thickness of the second substrate layer 150 may be 200 μm, and the thickness of the second substrate layer 150 may be 300 μm.

Exemplarily, the thickness of the first substrate layer 110 and the second substrate layer 150 both range from 25 μm to 300 μm, which can effectively reduce the thickness of the PDLC light modulation film 100.

Optionally, the haze of each of the first substrate layer 110 and the second substrate layer 150 is less than 2%.

Illustratively, haze is the percentage of transmitted light intensity above an angle of 2.5 ° from the incident light as a function of total transmitted light intensity, with greater haze reducing the gloss and clarity of the substrate.

Exemplarily, the haze of the first substrate layer 110 may be at most 2%, the haze of the first substrate layer 110 may be at most 1%, the haze of the second substrate layer 150 may be at most 2%, the haze of the second substrate layer 150 may be 1%, and the haze of both the first substrate layer 110 and the second substrate layer 150 is less than 2%, which ensures the transparency of the first PDLC dimming film 100.

Alternatively, the first and second substrate layers 110 and 150 are composed of one of a PC film, a COP film, and a PI film.

Illustratively, the PC (Polycarbonate) film may be a Polycarbonate film, the COP (cyclic Olefin Polymer) film may be a cycloolefin Polymer film, the PI (polyimide film) film may be a polyimide film, the first substrate layer 110 may be one of a PC film, a COP film, and a PI film, and the second substrate layer 150 may be one of a PC film, a COP film, and a PI film, it should be noted that the first substrate layer 110 and the second substrate layer 150 may be different substrate films, that is, when the first substrate layer 110 is a PC film, the second substrate layer 150 may be a COP film or a PI film.

Wherein, the PC film, the COP film and the PI film are all substrate films with low phase difference, and can effectively prevent the rainbow streak phenomenon.

Optionally, the preset optical property includes a first preset reflectivity and a second preset reflectivity, the first substrate layer 110 is a substrate with the first preset reflectivity, and the second substrate layer 150 is a substrate with the second preset reflectivity, where the first preset reflectivity has the same first reflectivity for the full-band light beams, and the second preset reflectivity has the same second reflectivity for the full-band light beams.

Illustratively, the principle of occurrence of rainbow patterns is: when a light beam containing a polarized light component enters, the substrate itself has birefringence, and the polarized state of the light beam changes according to the wavelength change, and the reflectance also changes according to the wavelength of the light beam, so that the coloring phenomenon, that is, the rainbow streak phenomenon occurs.

Illustratively, since the first substrate layer 110 is a substrate having a first reflectivity which is the same for all-band light beams, and the second substrate layer 150 is a substrate having a second reflectivity which is the same for all-band light beams, the occurrence of the rainbow streak phenomenon can be effectively prevented.

It should be noted that the first preset reflectivity and the second preset reflectivity may be the same, or the first preset reflectivity and the second preset reflectivity may also be different, and the first preset reflectivity and the second preset reflectivity are not limited herein.

Alternatively, the polymer dispersed liquid crystal layer 130 includes a photopolymer and a liquid crystal configured to adjust a refractive index of the liquid crystal by an electric field direction applied by the first and second

conductive layers

120 and 140, and the polymer dispersed liquid crystal layer 130 is configured to assume a transparent state when the refractive indexes of the photopolymer and the liquid crystal are the same.

Illustratively, the polymer dispersed liquid crystal layer 130 includes a photopolymer and liquid crystal, wherein the liquid crystal is uniformly dispersed in the solid photopolymer in the form of droplets of micrometer size, and since the liquid crystal is a material with strong optical and dielectric anisotropy, the effective refractive index of which does not match the refractive index of the photopolymer, the incident light beam can be strongly scattered to assume an astigmatic state. When the first conductive layer 120 and the second conductive layer 140 apply the electric field, the optical axis direction of the liquid crystal molecules is uniformly along the electric field direction, the refractive index of the liquid crystal molecules is matched with that of the photosensitive polymer to a certain degree, and the light beam can penetrate through the photosensitive polymer to be in a transparent state. After the direction of the electric field applied by the first conductive layer 120 and the second conductive layer 140 is removed, the liquid crystal molecules are restored to the original scattering state by the elastic energy of the photopolymer, and thus the polymer dispersed liquid crystal layer 130 has the electrically controlled optical switching characteristic by the electric field.

Alternatively, the first conductive layer 120 and the second conductive layer 140 are composed of one of a silver-plated conductive layer, a nano-lead conductive layer, a metal conductive layer, and a metal oxide conductive layer.

Illustratively, the first and second

conductive layers

120 and 140 may include a blended conductive layer and a transparent film-type conductive layer, wherein the blended conductive layer is formed by blending fine particles of conductive material into a coating material, and painting or spraying the fine particles of conductive material onto the surface of an insulating material together with an organic or inorganic binder and a diluent to form a conductive layer having a certain conductive capability; the transparent thin film type conductive layer may be a transparent conductive film prepared using a semiconductor compound such as tin oxide, indium oxide, cadmium stannate, or the like, or doping a small amount of fluorine, antimony in these compounds.

Illustratively, first conductive layer 120 and second conductive layer 140 can provide good static conductivity properties to enable first PDLC film 100 to switch between a transparent state and a light scattering state.

Optionally, a second PDLC light modulation film 200 is further provided in this embodiment of the present application, please refer to fig. 2, and fig. 2 is a schematic structural diagram of the second PDLC light modulation film provided in this embodiment of the present application. The second PDLC dimming film 200 includes: the liquid crystal display panel comprises a first substrate layer 110, a first adhesive layer 210, a first PET layer 220, a first conductive layer 120, a polymer dispersed liquid crystal layer 130, a second conductive layer 140, a second PET layer 230, a second adhesive layer 240 and a second substrate layer 150 which are sequentially stacked from top to bottom.

Illustratively, the first and second

adhesive layers

210 and 240 may be one of an acryl adhesive and a silicon adhesive, and have a peel strength greater than 800gf/inch.

Illustratively, since the second PDLC dimming film 200 includes the first substrate layer 110 and the second substrate layer 150, the generation of the rainbow texture phenomenon can be effectively prevented due to the preset optical properties of the first substrate layer 110 and the second substrate layer 150.

Optionally, a third PDLC light modulation film 300 is further provided in this embodiment of the present application, please refer to fig. 3, and fig. 3 is a schematic structural diagram of the third PDLC light modulation film provided in this embodiment of the present application. The third PDLC dimming film 300 includes: the first substrate layer 110, the first adhesive layer 210, the first PET layer 220, the first conductive layer 120, the polymer dispersed liquid crystal layer 130, the second conductive layer 140, and the second PET layer 230 are sequentially stacked from top to bottom. The third PDLC membrane of adjusting luminance 300 that this application embodiment provided simplex is provided with first substrate layer 110, with this face outdoor, can realize holistic anti rainbow line effect.

Optionally, a fourth PDLC light modulation film 400 is further provided in the embodiment of the present application, please refer to fig. 4, and fig. 4 is a schematic structural diagram of the fourth PDLC light modulation film provided in the embodiment of the present application. The fourth PDLC dimming film 400 includes: the first adhesive layer 210, the first substrate layer 110, the second adhesive layer 240, the first PET layer 220, the first conductive layer 120, the polymer dispersed liquid crystal layer 130, the second conductive layer 140, and the second PET layer 230 are sequentially stacked from top to bottom. The fourth PDLC membrane of adjusting luminance 400 that this application embodiment provided simplex is provided with first substrate layer 110, with this face outdoor, can realize holistic anti rainbow line effect.

The embodiment of the present application further provides a light control glass 500, please refer to fig. 5, and fig. 5 is a schematic structural diagram of the light control glass provided in the embodiment of the present application. The light control glass 500 comprises a first light-transmitting plate 510, a second light-transmitting plate 520 and a first PDLC light control film 100, wherein the first PDLC light control film 100 is arranged between the first light-transmitting plate 510 and the second light-transmitting plate 520.

Exemplarily, the first PDLC light modulation film 100 is disposed between the first light-transmitting plate 510 and the second light-transmitting plate 520, and the first PDLC light modulation film 100 can be reinforced by the first light-transmitting plate 510 and the second light-transmitting plate 520, so that the hardness of the light modulation glass 500 is enhanced, and the sound insulation and heat insulation of the light modulation glass 500 can also be realized.

For example, the first and second light-transmitting

plates

510 and 520 may be a tempered glass light-transmitting plate, a light-transmitting stone light-transmitting plate, an acrylic fiber light-transmitting plate, or the like.

For example, the first PDLC dimming film 100 in the dimming glass 500 can be replaced by the second PDLC dimming film 200, the third PDLC dimming film 300, or the fourth PDLC dimming film 400, which is not specifically limited herein.

In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of another like element in a process, method, composition, article, or apparatus that comprises the element.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model is usually placed when in use, and are used for convenience of description and simplification of description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing is illustrative of only alternative embodiments of the present application and is not intended to limit the present application, which may be modified or varied by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present disclosure, and all such changes or substitutions should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A PDLC light modulation film, comprising: the first substrate layer, the first conducting layer, the polymer dispersed liquid crystal layer, the second conducting layer and the second substrate layer are sequentially laminated from top to bottom;

the first substrate layer and the second substrate layer are composed of a substrate with preset optical properties.

2. The PDLC dimming film of claim 1, wherein said predetermined optical properties comprise a predetermined phase difference;

3. The PDLC light modulation film according to claim 2, wherein said preset phase difference is less than 20nm.

4. The PDLC light modulation film according to claim 1 or 2, wherein the thicknesses of the first base material layer and the second base material layer both range from 25 μm to 300 μm.

5. The PDLC light modulation film of claim 1 or 2, wherein the haze of each of the first and second substrate layers is less than 2%.

6. The PDLC light modulation film according to claim 1 or 2, wherein the first base material layer and the second base material layer are formed of one of a PC film, a COP film, and a PI film.

7. The PDLC dimming film of claim 1, wherein the predetermined optical properties comprise a first predetermined reflectivity and a second predetermined reflectivity;

8. The PDLC dimming film of claim 1, wherein the polymer dispersed liquid crystal layer comprises a photosensitive polymer and liquid crystal;

9. The PDLC light modulation film of claim 1, wherein said first and second conductive layers are comprised of one of silver plated conductive layers, nanowire conductive layers, metal conductive layers, and metal oxide conductive layers.

10. A light control glass, characterized in that, light control glass includes: a first light-transmitting plate, a second light-transmitting plate, and the PDLC film of any of claims 1-9;