CN113900308A

CN113900308A - Electrode fixed knot constructs, membrane and light control glass

Info

Publication number: CN113900308A
Application number: CN202111289155.8A
Authority: CN
Inventors: 张达玮; 张昱喆; 赵世勇; 李亚男; 肖淑勇; 梁斌
Original assignee: Zhejiang Jingyi New Material Technology Co Ltd
Current assignee: Zhejiang Jingyi New Material Technology Co Ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-01-07

Abstract

The invention provides an electrode fixing structure, a light adjusting film and light adjusting glass. The electrode fixing structure comprises an electrode, a conductive base material and a first fixing glue layer; the conductive substrate includes a conductive layer as a surface layer thereof; the electrodes form a winding structure around the conductive substrate or a part of the conductive substrate; the first fixing adhesive layer is arranged between the electrode and the conducting layer and used for bonding the electrode and the conducting layer; the first fixing adhesive layer is a conductive adhesive layer. The light adjusting film is provided with an electrode area, and the electrode area adopts the electrode fixing structure. The dimming glass comprises first light-transmitting glass, second light-transmitting glass and the dimming film, and the dimming film is arranged between the first light-transmitting glass and the second light-transmitting glass. The technical scheme provided by the invention can effectively avoid the electrode from being stripped from the conductive layer.

Description

Electrode fixed knot constructs, membrane and light control glass

Technical Field

The invention belongs to the technical field of electronic light control materials, and particularly relates to an electrode fixing structure, a light modulation film and light modulation glass.

Background

A light-modulating film is a device that can modulate the transmission of light through itself, typically by providing a light-controlling layer between two conductive substrates. When an electric field is switched on, the arrangement mode or the state of the materials in the light control layer is changed, so that the light transmission characteristic of the whole light adjusting film is changed, such as the light adjusting film is changed from an opaque state to a transparent state or from the transparent state to the opaque state. The switching between the on-state and the off-state is realized by the action of an electric field. The light adjusting film can be classified into a suspended particle light adjusting film, a polymer dispersed liquid crystal light adjusting film, an electrochemical reaction light adjusting film and the like according to different light control mechanisms of the light control layer. The light adjusting film has the advantages of actively adjusting and controlling light transmittance and saving energy, and can be used as intelligent windows of spacecrafts, high-speed rails, automobiles, buildings and the like, rearview mirrors of automobiles, sunglasses, displays and the like.

The light adjusting film needs to realize the adjustment of the bright state and the dark state of the light control layer under the condition of switching on the power supply, so that an electrode area needs to be reserved on a conductive base material of the light adjusting film. In the electrode area, the conductive layer needs to be connected with an electrode, i.e. a conductive metal strip or a conductive metal mesh, to realize communication with an external power supply, thereby realizing electrochromism.

In the prior art, the connection between the conductive layer and the conductive metal strip or the conductive metal mesh is generally achieved through a conductive adhesive, the conductive adhesive is generally conductive silver paste, the conductive adhesive can bond the conductive metal strip or the conductive metal mesh with the conductive layer, and then an external power line is connected with the conductive metal strip or the conductive metal mesh through methods such as soldering and the like. However, this technique has a significant drawback in that the conductive adhesive has a low viscosity, which causes the adhered conductive metal strip or conductive metal mesh to easily peel off, especially in the later laminating process, the welding process with an external power line, and the transferring process, which causes the peeling of the whole electrode and the conductive layer due to collision, pulling, and other factors. Although the conductive adhesive has been improved for many years, its adhesive ability has not been fundamentally improved due to the limitation of its connection structure. This results in that the yield of electrodes has been difficult to achieve effective improvement in the process of manufacturing the light-adjusting film.

Disclosure of Invention

The invention aims to provide an electrode fixing structure capable of effectively preventing an electrode from being stripped from a conductive layer.

Another object of the present invention is to provide a light-adjusting film which can effectively prevent peeling of an electrode on a conductive layer.

The invention also aims to provide the light control glass, and the light control glass can effectively avoid the stripping of the electrodes.

In order to achieve the above object, in one aspect, the present invention provides an electrode fixing structure including an electrode, a conductive base material, and a first fixing glue layer; the conductive substrate comprises a conductive layer, and the conductive layer is used as the surface layer of the conductive substrate;

the electrodes form a winding structure around the conductive substrate or a part of the conductive substrate;

the first fixing adhesive layer is arranged between the electrode and the conducting layer and used for bonding the electrode and the conducting layer, so that the electrode is attached to the conducting layer of the conducting substrate; the first fixing adhesive layer is a conductive adhesive layer;

the winding structure is a closed winding structure or a non-closed winding structure.

The electrode fixing structure provided by the invention is matched with the winding structure through the first fixing adhesive layer, so that the conducting layer and the electrode are greatly stabilized, and the electrode is prevented from being stripped from the conducting layer.

In the above electrode fixing structure, the winding structure is a closed winding structure, or a non-closed winding structure, and may be a single-turn winding structure or a multi-turn winding structure, and preferably includes at least one loop.

In one embodiment, the electrode forms a wound structure around a conductive substrate;

in this embodiment, the winding structure may be formed by bending both ends of the electrode from one side of the conductive base material to the other side through both side edges of the conductive base material, respectively; the winding structure may be formed by repeatedly bending one end of the electrode from one side of the conductive substrate to the other side through one side edge of the conductive substrate.

In one embodiment, the conductive substrate is provided with a first electrode fixing hole group, wherein the first electrode fixing hole group is composed of through holes arranged on the conductive substrate, and the electrode forms a winding structure around a part between the first electrode fixing hole group and one side edge of the conductive substrate on the conductive substrate;

in this embodiment, the winding structure may be formed by bending one end of the electrode from one side of the conductive base material to the other side through the through hole in the first electrode fixing hole group, and the other end from one side of the conductive base material to the other side through one side edge of the conductive base material; the winding structure can be formed by repeatedly bending one end of the electrode from one side of the conductive substrate to the other side through the through hole in the first electrode fixing hole group and then bending the end of the electrode back to the original side of the conductive substrate through the edge of one side of the conductive substrate.

In one embodiment, the conductive substrate is provided with a second electrode fixing hole group and a third electrode fixing hole group, wherein the second electrode fixing hole group is composed of through holes arranged on the conductive substrate, the third electrode fixing hole group is composed of through holes arranged on the conductive substrate, and the electrode forms a winding structure around a part between the second electrode fixing hole group and the third electrode fixing hole group on the conductive substrate;

in this embodiment, the winding structure may be formed by bending one end of the electrode from one side of the conductive base material to the other side through the through hole in the second electrode fixing hole group and bending the other end from one side of the conductive base material to the other side through the through hole in the third electrode fixing hole group; the winding structure may be formed by repeatedly bending one end of the electrode through the through hole in the second electrode fixing hole group from one side of the conductive substrate to the other side and then bending back to the original one side of the conductive substrate through the through hole in the third electrode fixing hole group.

In the above electrode fixing structure, preferably, the winding structure is a closed winding structure (i.e. the electrodes are connected end to end);

more preferably, the winding structure is a single turn closed winding structure.

In the above electrode fixing structure, preferably, the conductive adhesive layer is an adhesive layer containing conductive metal particles;

wherein, the conductive metal particles in the binder layer containing the conductive metal particles preferably include but are not limited to one or a combination of two or more of silver particles, gold particles and copper particles;

wherein, the binder in the binder layer containing the conductive metal particles preferably includes but is not limited to epoxy resin glue.

In the above electrode fixing structure, the first fixing adhesive layer is preferably capable of achieving a peel strength between the electrode material and the conductive layer material of more than 3.5N/1.27cm (i.e., a peel strength between the material of the electrode and the material of the conductive layer having a width of 1.27cm of more than 3.5N).

In one embodiment, the binder containing conductive metal particles is a commonly used conductive silver paste, such as a dupont conductive silver paste

PV145, DuPont conductive silver paste

PVD1x, DuPont conductive silver paste

PVD2x, conductive silver paste ZB2563 of beige electronics in Nanjing.

In the above electrode fixing structure, preferably, the electrode fixing structure further includes a second fixing glue layer;

the second fixing adhesive layer is arranged between the electrode and the other surface layer of the conductive substrate opposite to the conductive layer and used for bonding the electrode and the other surface layer of the conductive substrate opposite to the conductive layer; or; one side of the second fixing adhesive layer covers the electrode and the other surface layer, opposite to the conducting layer, of the conducting substrate, and is used for achieving the attachment of the fixing electrode and the other surface layer, opposite to the conducting layer, of the conducting substrate;

more preferably, the conductive substrate further comprises an insulating layer as another surface layer of the conductive substrate corresponding to the conductive layer;

wherein, the second fixed glue layer can be an insulating glue layer or a conductive adhesive layer; more preferably, the second fixing glue layer is an insulating glue layer;

further preferably, the second fixing adhesive layer is an insulating adhesive layer or an insulating adhesive tape layer;

when the second fixing adhesive layer is arranged between the electrode and the other surface layer of the conductive substrate opposite to the conductive layer and used for bonding the electrode and the other surface layer of the conductive substrate opposite to the conductive layer, the second fixing adhesive layer is an insulating adhesive layer;

when one side of the second fixing adhesive layer covers the other surface layer, opposite to the conductive layer, on the electrode and the conductive substrate and is used for realizing the adhesion of the fixed electrode and the other surface layer, opposite to the conductive layer, on the conductive substrate, the second fixing adhesive layer is an insulating adhesive tape layer;

wherein the insulating adhesive of the insulating adhesive layer preferably includes, but is not limited to, at least one of acrylic glue and epoxy glue;

the insulating tape of the insulating tape layer preferably includes, but is not limited to, a pressure sensitive adhesive tape and/or a silicone adhesive tape.

Because the bonding strength of the insulating adhesive layer or the insulating tape layer and the insulating layer is far higher than that of the conductive adhesive layer and the conductive adhesive layer, in the above preferred mode, the bonding firmness of the electrode on the conductive substrate is improved by additionally arranging the insulating adhesive layer or the insulating tape layer and the insulating layer, so that the conductive layer and the electrode are further stabilized, and the electrode is prevented from being peeled off from the conductive layer.

In one embodiment, the insulating adhesive is 3M epoxy glue and/or 3M acrylic glue.

In the above electrode fixing structure, preferably, the second fixing adhesive layer is capable of achieving a peel strength between the electrode material and another surface layer material corresponding to the conductive layer on the conductive substrate of more than 15N/1.27cm (i.e., a peel strength between a material of the electrode having a width of 1.27cm and a material of another surface layer corresponding to the conductive layer on the conductive substrate of more than 15N);

more preferably, the second fixing adhesive layer can realize a peel strength between the electrode material and another surface layer material corresponding to the conductive layer on the conductive substrate of more than 20N/1.27cm (i.e., a peel strength between a material of the electrode having a width of 1.27cm and a material of another surface layer corresponding to the conductive layer on the conductive substrate of more than 20N).

In the above electrode fixing structure, preferably, the electrode includes, but is not limited to, at least one of a copper electrode and an aluminum electrode.

In the above electrode fixing structure, preferably, the material of the electrode includes, but is not limited to, a conductive metal strip or a conductive metal mesh;

wherein the thickness of the conductive metal strip is preferably equal to or less than 0.2mm, more preferably equal to or less than 0.1mm, and further preferably equal to or less than 0.05 mm;

wherein the thickness of the conductive metal mesh is preferably equal to or less than 0.2mm, more preferably equal to or less than 0.1mm, and further preferably equal to or less than 0.05 mm;

in the preferred embodiment, the electrodes are formed by bending conductive metal strips or conductive metal meshes.

In a second aspect, the present invention provides a light modulation film, wherein the light modulation film includes the above electrode fixing structure.

In the above-described light adjusting film, preferably, the light adjusting film includes a light control layer, a first conductive substrate and a second conductive substrate provided on both sides of the light control layer; the first conductive base material and the second conductive base material are both provided with a light control area and an electrode area; the inner sides of the first conductive substrate and the second conductive substrate are provided with conductive layers; wherein,

the light control area of the first conductive substrate is opposite to the light control area of the second conductive substrate, and two sides of the light control layer are respectively contacted with the inner side of the light control area of the first conductive substrate and the inner side of the light control area of the second conductive substrate;

the electrode area of the first conductive base material is fixed with a first electrode, and the electrode area of the first conductive base material fixed with the first electrode adopts the electrode fixing structure; and/or; the electrode area of the second conductive base material is fixed with a second electrode, and the electrode area of the second conductive base material fixed with the second electrode adopts the electrode fixing structure.

In the above light adjusting film, preferably, an insulating layer is provided on the outer side of each of the first conductive base material and the second conductive base material.

In the above light-adjusting film, each of the conductive layers is preferably a transparent conductive layer;

more preferably, each conductive layer is selected from one or a combination of two or more of an ITO conductive layer, an FZO conductive layer, an IZO conductive layer, a GZO conductive layer, an AZO conductive layer, a PEDOT conductive layer, a nano Ag wire conductive layer, a graphene conductive layer, and a nano Cu wire conductive layer.

In the above light-adjusting film, each of the insulating layers is preferably a transparent insulating layer;

more preferably, each insulating layer is a transparent plastic layer;

further preferably, each insulating layer is a PET layer.

The above-mentioned light-adjusting film is usually a suspended particle light-adjusting film, a polymer dispersed liquid crystal light-adjusting film or an electrochromic light-adjusting film.

In a third aspect, the invention further provides a light modulation glass, which comprises a first light-transmitting glass, a second light-transmitting glass and the light modulation film, wherein the light modulation film is arranged between the first light-transmitting glass and the second light-transmitting glass.

In the above light control glass, the transparent glass for the conventional light control glass known to those skilled in the art can be used as the first transparent glass and the second transparent glass. Common glass such as inorganic glass or organic glass; functional glass such as UV-blocking glass, IR-blocking glass, Low-E glass, tempered glass, antibacterial glass, or the like may also be used.

In the above light control glass, preferably, the light control glass further includes a first adhesive layer, and the first adhesive layer is disposed between the first light-transmitting glass and the light control film.

In the above light control glass, preferably, the light control glass further includes a second adhesive layer, and the second adhesive layer is disposed between the second light-transmitting glass and the light control film.

In the above light control glass, the first and second adhesive interlayers may be conventional adhesive interlayers for light control glass well known to those skilled in the art. Conventional adhesive films such as EVA adhesive film, TPU adhesive film, or PVB adhesive film; functional adhesive films such as UV-blocking EVA adhesive films, UV-blocking TPU adhesive films, UV-blocking PVB adhesive films, or the like may also be used.

The light control glass is prepared by adopting the conventional glue clamping mode of the light control glass in the field, such as glue clamping in a laminating machine or glue clamping in an autoclave or a glue clamping box/furnace.

Compared with the prior art, the technical scheme provided by the invention has the following advantages:

1. the electrode fixing structure provided by the invention can effectively stabilize the electrode and the conducting layer, and the electrode is not easy to strip from the conducting layer.

2. The light modulation film provided by the invention adopts the electrode fixing structure provided by the invention, so that the electrode is not easy to peel off, and the improvement of the electrode yield in the light modulation film preparation process is facilitated.

3. The dimming glass provided by the invention adopts the dimming film provided by the invention, the electrode stripping is not easy to occur, and the occurrence probability of the dimming performance loss of the dimming glass caused by the electrode stripping is reduced.

Drawings

Fig. 1 is a schematic view of a light adjusting film provided in embodiment 1 of the present invention.

Fig. 2 is a schematic cross-sectional view (the position of a cross-sectional line is shown in fig. 1) of the light adjusting film provided in embodiment 1 of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in detail and completely with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-2, an embodiment of the present invention provides a light adjusting film 10, where the light adjusting film 10 includes a light control layer 13, and a first conductive substrate 11 and a second conductive substrate 12 disposed on two sides of the light control layer 13; the first conductive substrate 11 is composed of a first conductive layer 111 and a first PET layer 112 disposed outside the first conductive layer 111; the second conductive substrate 12 is composed of a second conductive layer 121 and a second PET layer 122 disposed outside the second conductive layer 121;

the first conductive substrate 11 and the second conductive substrate 12 are divided into a light control area and an electrode area,

the light control area of the first conductive substrate 11 is opposite to the light control area of the second conductive substrate 12, and two sides of the light control layer 13 are respectively in contact with the inner side of the first conductive layer 111 of the light control area of the first conductive substrate 11 and the inner side of the second conductive layer 121 of the light control area of the second conductive substrate 12;

a first electrode 14 is fixed on the electrode area of the first conductive substrate 11 to form an electrode fixing structure; specifically, the electrode region of the first conductive base material 11 is provided with a first via 1101 and a second via 1102; one end of the first electrode 14 passes through the first through hole 1101 and is bent from the first PET layer 112 of the electrode region of the first conductive base material 11 to the first conductive layer 111 side, and the other end passes through the second through hole 1102 and is bent from the first PET layer 112 of the electrode region of the first conductive base material 11 to the first conductive layer 111 side, the two ends are butted to form a closed ring shape, the first electrode 14 surrounds the part between the first through hole 1101 and the second through hole 1102 on the electrode area of the first conductive base material 11 to form a single-ring closed winding structure (or, one end of the first electrode 14 passes through the first through hole 1101, is bent from the first conductive layer 111 side of the electrode area of the first conductive base material 11 to the first PET layer 112 side, the other end passes through the second through hole 1102, is bent from the first conductive layer 111 side of the electrode area of the first conductive base material 11 to the first PET layer 112 side, the two ends are butted to form a closed ring shape, and the first electrode 14 surrounds the part between the first through hole 1101 and the second through hole 1102 on the electrode area of the first conductive base material 11 to form a single-ring closed winding structure); a first conductive adhesive layer 16 is arranged between the first electrode 14 and the first conductive layer 111 of the electrode region of the first conductive base material 11, and is used for adhering the first electrode 14 and the first conductive layer 111 of the electrode region of the first conductive base material 11; a first insulating glue layer 17 is arranged between the first electrode 14 and the first PET layer 112 of the electrode area of the first conductive base material 11 and is used for bonding the first electrode 14 and the first PET layer 112 of the electrode area of the first conductive base material 11; the first electrode 14 is formed by bending a conductive metal strip or a conductive metal mesh;

a second electrode 15 is fixed on the electrode area of the second conductive base material 12 to form an electrode fixing structure; specifically, the electrode region of the second conductive base material 12 is provided with a third through hole 1201 and a fourth through hole 1202; one end of the second electrode 15 passes through the third through hole 1201 and is bent from the second PET layer 122 side of the electrode region of the second conductive base material 12 to the second conductive layer 121 side, and the other end passes through the fourth through hole 1202 and is bent from the second PET layer 122 side of the electrode region of the second conductive base material 12 to the second conductive layer 121 side, two ends of the second electrode 15 are butted to form a closed ring shape, and the second electrode 15 surrounds a part between the third through hole 1201 and the fourth through hole 1202 on the electrode area of the second conductive base material 12 to form a single-ring closed winding structure (or one end of the second electrode 15 passes through the third through hole 1201 and is bent from the second conductive layer 121 of the electrode area of the second conductive base material 12 to the second PET layer 122 side, the other end passes through the fourth through hole 1202 and is bent from the second conductive layer 121 of the electrode area of the second conductive base material 12 to the second PET layer 122 side, the two ends of the second electrode 15 are butted to form a closed ring shape, and the second electrode 15 surrounds a part between the third through hole 1201 and the fourth through hole 1202 on the electrode area of the second conductive base material 12 to form a single-ring closed winding structure); a second conductive adhesive layer 18 is arranged between the second electrode 15 and the second conductive layer 121 of the electrode region of the second conductive base material 12, and is used for adhering the second electrode 15 and the second conductive layer 121 of the electrode region of the second conductive base material 12; a second insulating glue layer 19 is arranged between the second electrode 15 and the second PET layer 122 of the electrode area of the second conductive base material 12 and is used for bonding the second electrode 15 and the second PET layer 122 of the electrode area of the second conductive base material 12; the second electrode 15 is formed by bending a conductive metal strip or a conductive metal mesh;

the light modulation film 10 is provided with a first electrode external piece 20, the first electrode external piece 20 is a conductive metal strip or a conductive metal net, and the first electrode external piece 20 is connected with the part of the first electrode 14, which is positioned on the side of the first PET layer 112, in a soldering way;

the light adjusting film 10 is provided with a second electrode external piece 21, the second electrode external piece 21 is a conductive metal strip or a conductive metal net, and the second electrode external piece 21 and the part of the second electrode 15, which is positioned on the second PET layer 122 side, are connected by tin soldering.

The first PET layer 112 and the second PET layer 122 are PET plastic films, and the thickness of the PET plastic films is 50-200 micrometers.

The first conductive layer 111 and the second conductive layer 121 are transparent conductive layers, and one of an ITO conductive layer, an FZO conductive layer, an IZO conductive layer, a GZO conductive layer, an AZO conductive layer, a PEDOT conductive layer, a nano Ag wire conductive film layer, a graphene conductive layer, and a nano Cu wire conductive film layer is selected.

Wherein the thickness of the light control layer 13 is 20 micrometers-150 micrometers.

The conductive adhesive used for the first conductive adhesive layer 16 and the second conductive adhesive layer 18 is conductive silver paste, such as dupont conductive silver paste

PV145，

PVD1x，

PVD2 x; conductive silver paste ZB2563 of Nanjing Zhongbei electronic.

The width of the conductive metal strip and the conductive metal mesh is 1.27cm, and the conductive copper strip (with the thickness of 0.1mm) containing the binder on one side, the conductive copper strip (with the thickness of 0.05mm) containing the binder on one side, the conductive copper strip (with the thickness of 0.2mm) containing no binder, the conductive aluminum strip (with the thickness of 0.1mm) containing the binder on one side or the conductive copper mesh (with the thickness of 0.05mm) are selected.

Wherein, the first insulating adhesive layer 17 and the second insulating adhesive layer 19 are insulating adhesive layers; the adhesive used by the insulating adhesive layer is commercial or household adhesive such as 3M epoxy adhesive or 3M acrylic adhesive.

Another embodiment of the present invention provides a light adjusting film, which is different from the light adjusting film described in fig. 1-2 in that the first and second adhesive insulating layers are different:

in this embodiment, one side of the first insulating adhesive layer covers the first electrode and the first PET layer, so as to achieve the bonding and fixing of the first electrode and the first PET layer, and the first insulating adhesive layer is provided with an opening for the soldering connection between the first electrode external connector and the part of the first electrode located on the first PET layer side;

one side of the second insulating adhesive layer covers the second electrode and the second PET layer and is used for realizing the joint fixation of the second electrode and the second PET layer, and the second insulating adhesive layer is provided with an opening for the tin soldering connection of a second electrode external connector and the part of the second electrode positioned on the second PET layer side;

wherein, the first insulating adhesive layer and the second insulating adhesive layer are insulating adhesive tape layers; the insulating adhesive tape used by the insulating adhesive tape layer is commercial or household adhesive tape such as a pressure sensitive adhesive tape or a silica gel tape.

In another embodiment of the present invention, an electrode fixing structure is provided, where the electrode fixing structure is formed by fixing a first electrode 14 to an electrode region of a first conductive substrate 11 included in the light modulation film 10 shown in fig. 1-2.

In another embodiment of the present invention, an electrode fixing structure is provided, wherein the electrode fixing structure is formed by fixing a second electrode 15 to an electrode region of a second conductive base material 12 included in the light modulation film 10 shown in fig. 1-2.

Another embodiment of the present invention provides a light modulation glass, wherein the light modulation glass includes a first transparent glass, a second transparent glass, a light modulation film 10 as shown in fig. 1-2, a first adhesive layer, and a second adhesive layer; the light adjusting film 10 is arranged between the first light-transmitting glass and the second light-transmitting glass, the first adhesive layer is arranged between the first light-transmitting glass and the light adjusting film 10, and the second adhesive layer is arranged between the second light-transmitting glass and the light adjusting film 10.

The first transparent glass and the second transparent glass may be transparent glasses for conventional light control glass, which are well known to those skilled in the art; common glass such as inorganic glass or organic glass; functional glass such as UV-blocking glass, IR-blocking glass, Low-E glass, tempered glass, antibacterial glass, or the like may also be used.

Wherein, the first adhesive sandwich layer and the second adhesive sandwich layer can adopt the conventional adhesive sandwich layer for the light-adjusting glass well known by the technical personnel in the field; conventional adhesive films such as EVA adhesive film, TPU adhesive film, or PVB adhesive film; functional adhesive films such as UV-blocking EVA adhesive films, UV-blocking TPU adhesive films, UV-blocking PVB adhesive films, or the like may also be used.

Example 1

This example provides a light adjusting film 10, which has the structure shown in fig. 1-2 and is specifically prepared by the following steps:

(1) according to the structure of the light control layer 13, the first conductive substrate 11 and the second conductive substrate 12 in the light control film 10 as shown in fig. 1-2, a semi-finished product of the light control film having a light control area of 30cm × 30cm and no electrode fixing is prepared;

the first conductive layer 111 and the second conductive layer 121 are ITO conductive layers;

(2) fixing the first electrode 14: cutting two cuts with the length of 1.5cm and the width of 0.5cm on the electrode area of the first conductive base material 11 to form a first through hole 1101 and a second through hole 1102;

first and second vias 1101 and 112 on the first PET layer 112 of the first conductive substrate 113M epoxy glue is coated between the holes 1102; sticking a 24cm long conductive copper strip (with the thickness of 0.1mm) with a binder on one side to the surface of the 3M epoxy adhesive, and standing for 6-8h until the 3M epoxy adhesive is completely cured; confirming the positions of the first and second through holes 1101 and 1102, placing a screen printing apparatus thereon, confirming that the printing length and width is 12cm × 1.27cm, and applying a conductive silver paste

Pouring the PV145 into a screen printing device, and finishing printing to leave a 12cm × 1.27cm conductive silver paste strip between the first through hole 1101 and the second through hole 1102 on the first conductive layer 111 of the first conductive substrate 11; bending two ends of the conductive copper strip adhered to the surface of the 3M epoxy glue to the side of the first conductive layer 111 through the first through hole 1101 and the second through hole 1102 respectively, and slightly pressing the conductive copper strip on the silver paste strip, wherein the conductive silver paste is liquid, and the two ends of the conductive copper strip are connected; opening to a hot air mode by using a blower, quickly drying the conductive silver paste, and blowing for 30 minutes to ensure that the conductive silver paste is completely cured; (alternatively, the positions of the first and second through holes 1101 and 1102 are confirmed, a screen printing apparatus is placed thereon, the printing length and width are confirmed to be 12cm × 1.27cm, and conductive silver paste is applied

Pouring the PV145 into a screen printing device, and finishing printing to leave a 12cm × 1.27cm conductive silver paste strip between the first through hole 1101 and the second through hole 1102 on the first conductive layer 111 of the first conductive substrate 11; pasting a 24cm long conductive copper strip (with the thickness of 0.1mm) with a binder on one side on the surface of conductive silver paste; opening to a hot air mode by using a blower, quickly drying the conductive silver paste, and blowing for 30 minutes to ensure that the conductive silver paste is completely cured; coating 3M epoxy glue on the first PET layer 112 of the first conductive substrate 11 between the first via 1101 and the second via 1102; bending two ends of a conductive copper strip adhered to the surface of the conductive silver paste to the side of the first PET layer 112 of the first conductive substrate 11 through the first through hole 1101 and the second through hole 1102 respectively, and slightly pressing the conductive copper strip on the 3M epoxy adhesive tape, wherein two ends of the conductive copper strip are connected; standing for 6-8h until the 3M epoxy adhesive is completely cured; )

A further 5cm long single-sided conductive copper strip (0.1 mm thick) containing a binder was soldered to the part of the first electrode 14 on the side of the first PET layer 112;

(3) fixing the second electrode 15: cutting two cuts with the length of 1.5cm and the width of 0.5cm on the electrode area of the second conductive base material 12 respectively to serve as a third through hole 1201 and a fourth through hole 1202;

coating 3M epoxy glue between the third through hole 1201 and the fourth through hole 1202 on the second PET layer 122 of the second conductive substrate 12; sticking a 24cm long conductive copper strip (with the thickness of 0.1mm) with a binder on one side to the surface of the 3M epoxy adhesive, and standing for 6-8h until the 3M epoxy adhesive is completely cured; confirming the positions of the third through hole 1201 and the fourth through hole 1202, placing a screen printing device thereon, confirming that the printing length and width are 12cm multiplied by 1.27cm, and applying conductive silver paste

Pouring the PV145 into a screen printing device, and finishing printing to leave a 12cm × 1.27cm conductive silver paste strip between the third through hole 1201 and the fourth through hole 1202 on the second conductive layer 121 of the second conductive substrate 12; bending two ends of the conductive copper strip adhered to the surface of the 3M epoxy glue to the side of the second conductive layer 121 after passing through the third through hole 1201 and the fourth through hole 1202 respectively, and slightly pressing the conductive copper strip on the silver paste strip, wherein the conductive silver paste is liquid, and the two ends of the conductive copper strip are connected; opening to a hot air mode by using a blower, quickly drying the conductive silver paste, and blowing for 30 minutes to ensure that the conductive silver paste is completely cured; (alternatively, positions of the third through hole 1201 and the fourth through hole 1202 are confirmed, a screen printing apparatus is placed thereon, it is confirmed that a printing length and width is 12cm × 1.27cm, and conductive silver paste is applied

Pouring the PV145 into a screen printing device, and finishing printing to leave a 12cm × 1.27cm conductive silver paste strip between the third through hole 1201 and the fourth through hole 1202 on the second conductive layer 121 of the second conductive substrate 12; pasting a 24cm long conductive copper strip (with the thickness of 0.1mm) with a binder on one side on the surface of conductive silver paste; opening to a hot air mode by using a blower, quickly drying the conductive silver paste, and blowing for 30 minutes to ensure that the conductive silver paste is completely cured; third Via 1 on the second PET layer 122 of the second conductive substrate 123M epoxy glue is coated between the 201 and the fourth through hole 1202; bending two ends of the conductive copper strip adhered to the surface of the conductive silver paste to the second PET layer 122 side of the second conductive base material 12 after passing through the third through hole 1201 and the second through hole 1202 respectively, and slightly pressing the conductive copper strip on the 3M epoxy adhesive tape, wherein two ends of the conductive copper strip are connected; standing for 6-8h until the 3M epoxy adhesive is completely cured; )

Another conductive copper strip (0.1 mm thick) 5cm long with an adhesive on one side was soldered on the portion of the second electrode 15 on the side of the second PET layer 122;

and finishing the preparation of the dimming film.

Example 2

This embodiment provides a membrane of adjusting luminance

The difference between the light adjusting film provided in this example and the light adjusting film provided in example 1 is only the type of the conductive silver paste used, and this example uses the conductive silver paste

PVD1x。

Example 3

This embodiment provides a membrane of adjusting luminance

PVD2x。

Example 4

This embodiment provides a membrane of adjusting luminance

The difference between the light adjusting film provided in this example and the light adjusting film provided in example 1 is only the kind of the conductive silver paste used, and this example uses the conductive silver paste ZB 2563.

Example 5

This embodiment provides a membrane of adjusting luminance

The light-adjusting film provided in this example is different from the light-adjusting film provided in example 1 only in that a conductive copper bar (thickness 0.05mm) having a binder on one side is used instead of the conductive copper bar (thickness 0.1mm) having a binder on one side.

Example 6

This embodiment provides a membrane of adjusting luminance

The light-adjusting film provided in this example is different from the light-adjusting film provided in example 1 only in that a conductive copper bar (thickness 0.2mm) containing no binder is used instead of the conductive copper bar (thickness 0.1mm) containing a binder on one side.

Example 7

This embodiment provides a membrane of adjusting luminance

The light adjusting film provided in this example is different from the light adjusting film provided in example 1 only in that a conductive aluminum strip (thickness 0.1mm) having a binder on one side is used instead of a conductive copper strip (thickness 0.1mm) having a binder on one side.

Example 8

This embodiment provides a membrane of adjusting luminance

The light-adjusting film provided in this example is different from the light-adjusting film provided in example 1 only in that a conductive copper mesh (thickness 0.05mm) containing a binder on one side is used instead of a conductive copper bar (thickness 0.1mm) containing a binder on one side.

Example 9

This embodiment provides a membrane of adjusting luminance

The difference between the light adjusting film provided in this example and the light adjusting film provided in example 1 is only the type of the insulating adhesive used, and this example uses 3M acrylic adhesive instead of 3M epoxy adhesive.

Example 10

This embodiment provides a membrane of adjusting luminance

The structure of the light modulation film provided by this embodiment is different from the light modulation film provided by embodiment 1 only in that the first insulating adhesive layer and the second insulating adhesive layer are different:

wherein, the first insulating adhesive layer and the second insulating adhesive layer are pressure sensitive adhesive tapes.

The preparation method specifically comprises the following steps:

(1) a semi-finished product of a light adjusting film having a light control area of 30cm × 30cm and not subjected to electrode fixing was prepared in the same manner as in step 1 of example 1;

(2) fixing the first electrode:

respectively cutting two cuts with the length of 1.5cm and the width of 0.5cm on the electrode area of the first conductive base material to serve as a first through hole and a second through hole;

a 24cm long conductive copper strip (thickness 0.1mm) with adhesive on one side is attached to the first PET layer of the first conductive substrate; covering the conductive copper strip with a pressure-sensitive adhesive tape, and enabling the pressure-sensitive adhesive tape to be tightly attached to the conductive copper strip and the first PET layer to realize the attachment and fixation of the conductive copper strip and the first PET layer; wherein, an opening of a soldering position is reserved in the middle of the pressure sensitive adhesive tape; confirming the positions of the first and second through holes, placing a screen printing apparatus thereon, confirming that the printing length and width is 12cm × 1.27cm, and applying conductive silver paste

Pouring the PV145 into a screen printing device, and finishing printing to leave a 12cm by 1.27cm conductive silver paste strip between the first through hole and the second through hole on the first conductive layer of the first conductive substrate; bending two ends of a conductive copper strip attached to the surface of the first PET layer to the side of the first conductive layer through the first through hole and the second through hole respectively, and slightly pressing the conductive copper strip on the silver paste strip, wherein the conductive silver paste is liquid, and two ends of the conductive copper strip are connected; opening to a hot air mode by using a blower, quickly drying the conductive silver paste, and blowing for 30 minutes to ensure that the conductive silver paste is completely cured; (alternatively, the positions of the first through-hole and the second through-hole were confirmed, a screen printing apparatus was placed thereon, the printing length and width were confirmed to be 12cm × 1.27cm, and a conductive silver paste was applied

Pouring the PV145 into a screen printing device, and finishing printing to leave a 12cm by 1.27cm conductive silver paste strip between the first through hole and the second through hole on the first conductive layer of the first conductive substrate; a 24cm long conductive copper strip (with the thickness of 0.1mm) with a binder on one side is pasted on the surface of the conductive silver paste, and the conductive copper strip is lightly pressed on the silver paste strip, and the conductive silver paste is liquid; opening to a hot air mode by using a blower, quickly drying the conductive silver paste, and blowing for 30 minutes to ensure that the conductive silver paste is completely cured; bending two ends of a conductive copper strip attached to the surface of the conductive silver paste to the side of the first PET layer of the first conductive substrate through the first through hole and the second through hole respectively, wherein two ends of the conductive copper strip are connected; covering the conductive copper strip with a pressure-sensitive adhesive tape, and enabling the pressure-sensitive adhesive tape to be tightly attached to the conductive copper strip and the first PET layer to realize the attachment and fixation of the conductive copper strip and the first PET layer; wherein, an opening of a soldering position is reserved in the middle of the pressure sensitive adhesive tape; )

Soldering another conductive copper bar (thickness 0.1mm) having a length of 5cm and having an adhesive on one side thereof to a portion of the first electrode which is open at a soldering position left in the middle of the pressure-sensitive adhesive tape;

(3) fixing the second electrode: respectively cutting two cuts with the length of 1.5cm and the width of 0.5cm on the electrode area of the second conductive base material to serve as a third through hole and a fourth through hole;

a 24cm long conductive copper strip (with the thickness of 0.1mm) with a binder on one side is attached to the second PET layer of the second conductive substrate; covering the conductive copper strip with a pressure-sensitive adhesive tape, and enabling the pressure-sensitive adhesive tape to be tightly attached to the conductive copper strip and the second PET layer to realize the attachment and fixation of the conductive copper strip and the second PET layer; wherein, an opening of a soldering position is reserved in the middle of the pressure sensitive adhesive tape; confirming the positions of the third and fourth through holes, placing a screen printing apparatus thereon, confirming that the printing length and width is 12cm × 1.27cm, and applying conductive silver paste

Pouring the PV145 into a screen printing device, and finishing printing to leave 12cm × 1.27cm of conductive silver paste between the third through hole and the fourth through hole on the second conductive layer of the second conductive substrateA strip; respectively bending two ends of the conductive copper strip adhered to the surface of the second PET layer to the side of the second conductive layer by penetrating through the third through hole and the fourth through hole, slightly pressing the conductive copper strip on the silver paste strip, wherein the conductive silver paste is liquid, and the two ends of the conductive copper strip are connected; opening to a hot air mode by using a blower, quickly drying the conductive silver paste, and blowing for 30 minutes to ensure that the conductive silver paste is completely cured; (alternatively, the positions of the third through hole and the fourth through hole were confirmed, a screen printing apparatus was placed thereon, the printing length and width were confirmed to be 12cm × 1.27cm, and a conductive silver paste was applied

Pouring the PV145 into a screen printing device, and after printing, leaving a conductive silver paste strip of 12cm multiplied by 1.27cm between the third through hole and the fourth through hole on the second conductive layer of the second conductive substrate; a 24cm long conductive copper strip (with the thickness of 0.1mm) with a binder on one side is pasted on the surface of the conductive silver paste, and the conductive copper strip is lightly pressed on the silver paste strip, and the conductive silver paste is liquid; opening to a hot air mode by using a blower, quickly drying the conductive silver paste, and blowing for 30 minutes to ensure that the conductive silver paste is completely cured; bending two ends of the conductive copper strip adhered to the surface of the conductive silver paste to the second PET layer side of the second conductive substrate through the third through hole and the fourth through hole respectively, wherein two ends of the conductive copper strip are connected; covering the conductive copper strip with a pressure-sensitive adhesive tape, and enabling the pressure-sensitive adhesive tape to be tightly attached to the conductive copper strip and the second PET layer to realize the attachment and fixation of the conductive copper strip and the second PET layer; wherein, an opening of a soldering position is reserved in the middle of the pressure sensitive adhesive tape; )

Soldering another conductive copper bar (thickness 0.1mm) with 5cm length and adhesive on the second electrode at the open part of the soldering position left in the middle of the pressure sensitive adhesive tape;

and finishing the preparation of the dimming film.

Example 11

This embodiment provides a membrane of adjusting luminance

The difference between the light adjusting film provided in this example and the light adjusting film provided in example 10 is only that the insulating adhesive layer used is different, and this example uses a silicone adhesive tape instead of the pressure-sensitive adhesive tape.

Example 12

This embodiment provides a membrane of adjusting luminance

The structure of the light adjusting film provided in this embodiment is different from that of the light adjusting film provided in embodiment 1 only in that the first conductive base material is not provided with the first through hole and the second through hole; one end of the first electrode penetrates through one side edge of the first conductive base material electrode region and is bent to the first conductive layer side from the first PET layer side of the first conductive base material electrode region, and the other end of the first electrode penetrates through the other side edge of the first conductive base material electrode region and is bent to the first conductive layer side from the first PET layer side of the first conductive base material electrode region; the second conductive substrate is not provided with a third through hole and a fourth through hole; one end of the second electrode penetrates through one side edge of the second conductive base material electrode region and is bent to the second conductive layer side from the second PET layer side of the second conductive base material electrode region, and the other end penetrates through the other side edge of the second conductive base material electrode region and is bent to the second conductive layer side from the second PET layer side of the second conductive base material electrode region.

The preparation method specifically comprises the following steps:

(2) fixing the first electrode:

coating 3M epoxy glue on the first PET layer of the electrode area of the first conductive base material; sticking a conductive copper bar (with the thickness of 0.1mm) with the length of 28cm and containing a binder on one side to the surface of the 3M epoxy glue, and standing for 6-8h until the 3M epoxy glue is completely cured; placing the screen printing device thereon, confirming that the printing length and width is 14cm × 1.27cm, and adding conductive silver paste

Pouring the PV145 into a screen printing device, and leaving a 14cm × 1.27cm conductive silver paste strip on the first conductive layer at the electrode area of the first conductive substrate after printing is finished; bending two ends of a conductive copper bar attached to the surface of the 3M epoxy adhesive to the side of the first conductive layer through two side edges of an electrode area of the first conductive base material respectively, and slightly pressing the conductive copper bar on a silver paste strip, wherein the conductive silver paste is liquid, and two ends of the conductive copper bar are connected; opening the conductive silver paste to a hot air mode by using a blower, quickly drying the conductive silver paste, and blowingBrushing for 30 minutes can ensure that the conductive silver paste is completely cured; (alternatively, the screen printing apparatus was placed on the first conductive substrate, the printing length and width were confirmed to be 14cm × 1.27cm, and the conductive silver paste was applied

Pouring the PV145 into a screen printing device, and leaving a 14cm × 1.27cm conductive silver paste strip on the first conductive layer at the electrode area of the first conductive substrate after printing is finished; pasting a conductive copper bar (with the thickness of 0.1mm) with the length of 28cm and containing a binder on one side on the surface of conductive silver paste; opening to a hot air mode by using a blower, quickly drying the conductive silver paste, and blowing for 30 minutes to ensure that the conductive silver paste is completely cured; coating 3M epoxy glue on the first PET layer of the electrode area of the first conductive base material; respectively bending two ends of a conductive copper strip attached to the surface of the conductive silver paste to the side of the first PET layer of the first conductive base material through the edges of the two sides of the electrode area of the first conductive base material, slightly pressing the conductive copper strip on the 3M epoxy adhesive tape, and connecting the two ends of the conductive copper strip; standing for 6-8h until the 3M epoxy adhesive is completely cured; )

Soldering another conductive copper strip (thickness 0.1mm) having a length of 5cm and having an adhesive on one side thereof to a portion of the first electrode on the first PET layer side;

(3) fixing the second electrode:

coating 3M epoxy glue on a second PET layer of the electrode area of a second conductive base material; sticking a conductive copper bar (with the thickness of 0.1mm) with the length of 28cm and containing a binder on one side to the surface of the 3M epoxy glue, and standing for 6-8h until the 3M epoxy glue is completely cured; placing the screen printing device thereon, confirming that the printing length and width is 14cm × 1.27cm, and adding conductive silver paste

Pouring the PV145 into a screen printing device, and leaving a 14cm × 1.27cm conductive silver paste strip on the second conductive layer at the electrode area of the second conductive substrate after printing is finished; bending two ends of the conductive copper bar attached to the surface of the 3M epoxy adhesive to the side of the second conductive layer through two side edges of the electrode area of the second conductive base material respectively, and slightly pressing the conductive copper bar on the silver paste strip, wherein the conductive silver paste is liquid, and two ends of the conductive copper bar are connected; the blower is turned to a hot air mode for rapid dryingConducting silver paste, and blowing for 30 minutes can ensure that the conducting silver paste is completely cured; (alternatively, the screen printing apparatus was placed on a second conductive substrate, the printing length and width was confirmed to be 14cm × 1.27cm, and a conductive silver paste was applied

Pouring the PV145 into a screen printing device, and leaving a 14cm × 1.27cm conductive silver paste strip on the second conductive layer at the electrode area of the second conductive substrate after printing is finished; pasting a conductive copper bar (with the thickness of 0.1mm) with the length of 28cm and containing a binder on one side on the surface of conductive silver paste; opening to a hot air mode by using a blower, quickly drying the conductive silver paste, and blowing for 30 minutes to ensure that the conductive silver paste is completely cured; coating 3M epoxy glue on a second PET layer of the electrode area of a second conductive base material; respectively bending two ends of the conductive copper strip adhered to the surface of the conductive silver paste to the second PET layer side of the second conductive base material through the edges of the two sides of the electrode area of the second conductive base material, slightly pressing the conductive copper strip on the 3M epoxy adhesive tape, and connecting the two ends of the conductive copper strip; standing for 6-8h until the 3M epoxy adhesive is completely cured; )

Soldering another conductive copper strip (thickness 0.1mm) having a length of 5cm and having an adhesive on one side thereof to a portion of the second electrode on the second PET layer side;

and finishing the preparation of the dimming film.

Comparative example 1

This comparative example provides a light-adjusting film

The structure of the light-adjusting film provided by this comparative example differs from the light-adjusting film provided by example 1 only in that: no insulating glue layer is arranged; the first conductive substrate is not provided with a first through hole and a second through hole; the first electrode is adhered and fixed on the first conducting layer of the electrode area of the first conducting base material through the conducting adhesive layer; the second conductive substrate is not provided with a third through hole and a fourth through hole; the second electrode is fixedly bonded on a second conducting layer of the electrode area of the second conducting base material through a conducting adhesive layer; the first electrode external piece is connected with the first electrode in a soldering way; the second electrode external piece is connected with the second electrode in a soldering way.

The preparation method specifically comprises the following steps:

(2) fixing the first electrode:

placing the screen printing equipment on the first conductive substrate, confirming that the printing length and width is 12cm multiplied by 1.27cm, and adding conductive silver paste

Pouring the PV145 into a screen printing device, and leaving a 12cm × 1.27cm conductive silver paste strip on the first conductive layer at the electrode area of the first conductive substrate after printing is finished; lightly pressing a conductive copper strip (with the thickness of 0.1mm) with the length of 12cm and containing a binder on one side on a silver paste strip, wherein the conductive silver paste is liquid; opening to a hot air mode by using a blower, quickly drying the conductive silver paste, and blowing for 30 minutes to ensure that the conductive silver paste is completely cured;

soldering another conductive copper strip (0.1 mm in thickness) with a length of 5cm and a single side containing a binder on the first electrode;

(3) fixing the second electrode:

placing the screen printing device on a second conductive substrate, confirming that the printing length and width is 12cm multiplied by 1.27cm, and adding conductive silver paste

Pouring the PV145 into a screen printing device, and leaving a 12cm × 1.27cm conductive silver paste strip on the second conductive layer at the electrode area of the second conductive substrate after printing is finished; lightly pressing a conductive copper strip (with the thickness of 0.1mm) with the length of 12cm and containing a binder on one side on a silver paste strip, wherein the conductive silver paste is liquid; opening to a hot air mode by using a blower, quickly drying the conductive silver paste, and blowing for 30 minutes to ensure that the conductive silver paste is completely cured;

soldering another conductive copper strip (with thickness of 0.1mm) with length of 5cm and single side containing binder on the second electrode;

and finishing the preparation of the dimming film.

Comparative example 2

This comparative example provides a light-adjusting film

The light-adjusting film provided in this comparative example is different from the light-adjusting film provided in comparative example 1 only in that a conductive copper mesh (thickness 0.05mm) having a binder on one side is used instead of a conductive copper bar (thickness 0.1mm) having a binder on one side.

In order to more accurately test the electrode structure provided by the present invention, the peel strength of the conductive adhesive, the insulating adhesive and the insulating tape in the corresponding application scenarios was separately tested using a 90 ° peel strength tester (midfieldikagaku HTS-ble 2510), while also testing the peel strength of the electrodes of examples 1-12 and comparative examples 1-2.

Test example 1

The conductive adhesives, insulating adhesives and insulating tapes used in examples 1 to 12 and comparative examples 1 to 2 were tested for peel strength on the ITO conductive layers and PET insulating layers used in examples 1 to 12 and comparative examples 1 to 2.

The method for testing the peel strength of the conductive adhesive comprises the following steps: printing a 12cm multiplied by 1.27cm conductive adhesive strip on an ITO conductive layer of an ITO/PET conductive substrate by a screen printing method, and attaching a 12cm long conductive copper strip on the conductive adhesive strip; and (3) blowing the conductive adhesive to a hot air mode by using a blower, quickly drying the conductive adhesive, and blowing for 30 minutes to ensure that the conductive adhesive is completely cured. And then testing the peel strength by using a peel strength tester, specifically, clamping one side of the conductive copper bar by using a movable clamp, clamping the same side of the ITO/PET conductive substrate by using a fixed clamp, and operating the machine to obtain the force required by the movable clamp to peel off the sample at a preset speed. Since the width of each copper bar was 1.27cm, the peel strength was in N/1.27 cm.

The method for testing the peel strength of the insulating adhesive or the adhesive tape comprises the following steps: adhering an insulating adhesive or an adhesive tape on a PET insulating layer of the ITO/PET conductive substrate, similarly attaching a 12cm long conductive copper strip on the insulating adhesive or the adhesive tape, and waiting for the insulating adhesive to be cured or the adhesive tape to be fixed; and then testing the peel strength by using a peel strength tester, wherein one side of the conductive copper strip is clamped by the movable clamp, the same side of the ITO/PET conductive substrate is clamped by the fixed clamp, and the force required by the movable clamp to peel the sample at a preset speed can be obtained by operating the machine. Since the width of each copper bar was 1.27cm, the peel strength was in N/1.27 cm.

The results are shown in Table 1.

TABLE 1 peel strength of conductive adhesive, insulating adhesive, and adhesive tape

Test example 2

Electrode peel strength tests were performed on the light-adjusting films provided in examples 1 to 12 and comparative examples 1 to 2:

the peeling strength tester is used, wherein the movable clamp clamps a conductive metal strip or a conductive metal net connected with a sample to be tested and an external power supply, the fixed clamp clamps a conductive base material on the light modulation film, and the machine is operated to obtain the force required by the movable clamp to peel the sample at the preset speed. Since the width of each copper bar was 1.27cm, the peeling unit was N/1.27 cm.

The results are shown in Table 2.

TABLE 2 peel strength of the samples

As can be seen from table 1, the adhesion between the adhesive and the PET layer is much greater than that between the adhesive and the conductive layer, because the conductive layer of the transparent electrode is generally metal or metal oxide at present, and the adhesion effect between the organic adhesive and the conductive layer is significantly weaker than that between the PET material and the adhesive.

Meanwhile, in the electrodes manufactured in examples 1 to 12, due to the winding structure, even if the conductive metal strip or the conductive metal mesh and the PET layer are separated in the peeling test, the adhesion between the whole electrode and the surface of the conductive layer is still stable, so that the whole light modulation film can still work normally. However, the electrodes in comparative examples 1 and 2 are completely peeled from the surface of the conductive layer after the peeling test, so that the light adjusting film cannot work normally, and the peeling problem occurs in practical application and is difficult to repair. On the one hand, the winding structure in the electrode fixing structure of the invention brings improvement on the electrode structure; on the other hand, the scheme that the electrode extends from the PET layer side to the conductive layer side can well improve the bonding reliability of the electrode by means of the bonding effect between the PET and the bonding agent.

Therefore, the light adjusting film with the reinforced electrode structure can well solve the problem of unnecessary damage of the light adjusting film in the transportation and post-processing processes, can obviously improve the yield in the process of manufacturing laminated glass, and obviously reduces the cost of the light adjusting glass.

Claims

1. An electrode fixing structure is characterized by comprising an electrode, a conductive base material and a first fixing glue layer; the conductive substrate comprises a conductive layer, and the conductive layer is used as a surface layer of the conductive substrate;

the first fixing adhesive layer is arranged between the electrode and the conducting layer and used for bonding the electrode and the conducting layer; the first fixing adhesive layer is a conductive adhesive layer;

2. The electrode fixing structure according to claim 1,

the electrodes form a winding structure around the conductive substrate;

or;

a first electrode fixing hole group is arranged on the conductive substrate, wherein the first electrode fixing hole group consists of through holes arranged on the conductive substrate, and the electrode forms a winding structure around the part between the first electrode fixing hole group on the conductive substrate and one side edge of the conductive substrate;

or;

the conductive substrate is provided with a second electrode fixing hole group and a third electrode fixing hole group, wherein the second electrode fixing hole group is composed of through holes arranged on the conductive substrate, the third electrode fixing hole group is composed of through holes arranged on the conductive substrate, and the electrode surrounds the part between the second electrode fixing hole group and the third electrode fixing hole group on the conductive substrate to form a winding structure.

3. The electrode fixing structure according to claim 1 or 2,

the winding structure is a closed winding structure; preferably, the winding structure is a single turn closed winding structure.

4. The electrode fixing structure according to claim 1, wherein the conductive adhesive layer is an adhesive layer containing conductive metal particles;

preferably, the conductive metal particles in the binder layer containing conductive metal particles include one or a combination of two or more of silver particles, gold particles, and copper particles.

5. The electrode fixing structure according to claim 1, further comprising a second fixing glue layer;

preferably, the conductive substrate further comprises an insulating layer as another surface layer of the conductive substrate corresponding to the conductive layer;

preferably, the second fixing glue layer is an insulating glue layer.

6. The electrode fixing structure according to claim 1, wherein the material of the electrode comprises a conductive metal strip or a conductive metal mesh; the electrode is formed by bending a conductive metal strip or a conductive metal mesh;

preferably, the thickness of the conductive metal strip is less than or equal to 0.2mm, more preferably less than or equal to 0.1mm, and even more preferably 0.05 mm;

preferably, the thickness of the conductive metal mesh is 0.2mm or less, more preferably 0.1mm or less, and still more preferably 0.05 mm.

7. A light-adjusting film, characterized in that it comprises an electrode fixing structure according to any one of claims 1 to 6;

preferably, the light adjusting film is a suspended particle light adjusting film, a polymer dispersed liquid crystal light adjusting film or an electrochromic light adjusting film.

8. The light adjusting film according to claim 7, wherein the light adjusting film comprises a light control layer, a first conductive substrate and a second conductive substrate provided on both sides of the light control layer; the first conductive base material and the second conductive base material are both provided with a light control area and an electrode area; the inner sides of the first conductive substrate and the second conductive substrate are provided with conductive layers; wherein,

the electrode area of the first conductive substrate is fixed with a first electrode, and the electrode area of the first conductive substrate fixed with the first electrode adopts the electrode fixing structure of any one of claims 1 to 6; and/or; the electrode area of the second conductive substrate is fixed with a second electrode, and the electrode area of the second conductive substrate fixed with the second electrode adopts the electrode fixing structure of any one of claims 1 to 6.

9. The light adjusting film according to claim 8,

each conductive layer is selected from one or a combination of more than two of an ITO conductive layer, an FZO conductive layer, an IZO conductive layer, a GZO conductive layer, an AZO conductive layer, a PEDOT conductive layer, a nano Ag wire conductive layer, a graphene conductive layer and a nano Cu wire conductive layer;

each insulating layer is a transparent plastic layer, preferably a PET layer;

the electrode includes at least one of a copper electrode and an aluminum electrode.

10. A light control glass, comprising a first light transmitting glass, a second light transmitting glass, and the light control film according to any one of claims 7 to 9, the light control film being disposed between the first light transmitting glass and the second light transmitting glass;

preferably, the light modulation glass further comprises a first adhesive layer, and the first adhesive layer is arranged between the first light-transmitting glass and the light modulation film;

preferably, the light control glass further comprises a second adhesive layer, and the second adhesive layer is arranged between the second light-transmitting glass and the light control film.