阅读说明：本技术 具有两个功能膜层的电致变色器件 (Electrochromic device with two functional film layers ) 是由 姜天怡 于 2019-11-12 设计创作，主要内容包括：本发明提供一种具有两个功能膜层的电致变色器件,它由两个基底、一个导电与电致变色双功能膜层、一个电解质层、封装材料和电极外引脚组成,导电与电致变色双功能膜层处于一侧基底内表面和电解质层之间,电解质层处于导电与电致变色双功能膜层和另一侧基底内表面之间,电极外引脚在电致变色器件内部和导电与电致变色双功能膜层相连、其外端延伸至封装材料和基底范围以外,封装材料把两侧基底相连起来从而将导电与电致变色双功能膜层和电解质层封闭在两侧基底和封装材料内部而与外界隔离；本发明的优点是减少电致变色器件中的功能膜层数量,提高电致变色器件的光学性能,外接工作电路结构简单,可应用于眼镜、汽车后视镜、遮阳板等领域。(The invention provides an electrochromic device with two functional film layers, which consists of two substrates, a conductive and electrochromic double-function film layer, an electrolyte layer, packaging materials and electrode outer pins, wherein the conductive and electrochromic double-function film layer is positioned between the inner surface of the substrate on one side and the electrolyte layer, the electrolyte layer is positioned between the conductive and electrochromic double-function film layer and the inner surface of the substrate on the other side, the electrode outer pins are connected with the conductive and electrochromic double-function film layer in the electrochromic device, the outer ends of the electrode outer pins extend out of the range of the packaging materials and the substrates, and the packaging materials connect the substrates on the two sides so as to seal the conductive and electrochromic double-function film layer and the electrolyte layer in the substrates on the two sides and the packaging materials and isolate the two substrates; the invention has the advantages of reducing the number of functional film layers in the electrochromic device, improving the optical performance of the electrochromic device, having simple structure of an external working circuit and being applicable to the fields of glasses, automobile rearview mirrors, sun visors and the like.)

1. An electrochromic device with two functional film layers, which comprises a substrate, and is characterized in that: the electrochromic device consists of two substrates, a conductive and electrochromic double-function film layer, an electrolyte layer, packaging materials and outer electrode pins;

the conductive and electrochromic double-function film layer is a film layer made of a material with dual functions of conductivity and electrochromic and is positioned between the inner surface of the substrate on one side and the electrolyte layer; the electrolyte layer is a film layer made of electrolyte material and is positioned between the conductive and electrochromic double-function film layer and the inner surface of the substrate on the other side; the outer pin of the electrode is a conductive member which is made of a conductive material, is connected with the conductive and electrochromic double-function film layer in the electrochromic device, and the outer end of the outer pin extends out of the range of the packaging material and the substrate and is used for conducting electricity; the packaging material is a member which connects the substrates at the two sides so as to seal the conductive and electrochromic bifunctional film layer and the electrolyte layer in the substrates at the two sides and the packaging material and isolate the substrates and the electrolyte layer from the outside; and the packaging material is used for packaging the outer end of the outer pin of the electrode outside the electrochromic device.

2. An electrochromic device with two functional film layers according to claim 1, characterized in that: the electrochromic device with two functional film layers is a perspective electrochromic device.

3. An electrochromic device with two functional film layers according to claim 2, characterized in that: in the see-through electrochromic device, all the substrates are transparent base members, the conductive and electrochromic dual function film layer is a film layer which is transparent in a discolored state, and the electrolyte layer is a transparent film layer.

4. An electrochromic device with two functional film layers according to claim 1, characterized in that: the electrochromic device with two functional film layers is a reflective electrochromic device.

5. An electrochromic device with two functional film layers according to claim 4, characterized in that: in the reflection type electrochromic device, a light reflecting surface thereof is provided on a substrate on one side, the substrate having the light reflecting surface is a non-transparent base member as a whole, and the substrate on the other side is a transparent base member; the conductive and electrochromic double-function film layer is a transparent film layer in a fading state, and the electrolyte layer is a transparent film layer.

6. An electrochromic device with two functional film layers as claimed in any one of claims 1 to 5, characterized in that: the electrochromic device with the two functional film layers is in a planar or non-planar shape.

Technical Field

The invention belongs to the technical field of electrochromic devices, and particularly relates to an electrochromic device with two functional film layers.

Background

The electrochromic is a phenomenon that optical properties such as color, transmittance, reflectivity, absorptivity and the like of a material are stably and reversibly changed under the action of an applied electric field, and the material is shown as reversible change of color and transparency in appearance. Materials having electrochromic properties are called electrochromic materials, materials that are colored when connected to a power source anode and discolored when connected to a power source cathode are called anodic electrochromic materials, and materials that are colored when connected to a power source cathode and discolored when connected to a power source anode are called cathodic electrochromic materials. Structures with electrochromic functionality made with electrochromic materials are referred to as electrochromic devices.

The structural form adopted by the existing electrochromic device is as follows: substrate-electrode layer-electrochromic layer-electrolyte layer-ion storage layer-electrode layer-substrate structure (see fig. 1), in which there are five functional film layers, two electrode layers, one electrochromic layer, one electrolyte layer and one ion storage layer. When the electrochromic layer is made of an anode electrochromic material, the electrode layer adjacent to the electrochromic layer is communicated with the anode of a direct-current power supply, the opposite electrode layer is communicated with the cathode of the direct-current power supply, and the electrochromic device has a coloring phenomenon (see fig. 2); the electrode layer next to the electrochromic layer is connected with the cathode of the direct current power supply, the opposite electrode layer is connected with the anode of the direct current power supply, and the electrochromic device has a color fading phenomenon (see fig. 3). When the electrochromic layer is made of a cathode electrochromic material, the electrode layer adjacent to the electrochromic layer is communicated with the negative electrode of the direct-current power supply, the opposite electrode layer is communicated with the positive electrode of the direct-current power supply, and the electrochromic device has a coloring phenomenon (see fig. 4); the electrode layer next to the electrochromic layer is connected with the anode of the direct current power supply, the opposite electrode layer is connected with the cathode of the direct current power supply, and the electrochromic device has a color fading phenomenon (see fig. 5).

The number of functional film layers and the thickness of the film layers of the electrochromic device have an important influence on the optical performance and the manufacturing cost of the device. Because the prior electrochromic device has as many as five functional film layers, the optical performance of the device is reduced, and the manufacturing cost of the device is increased. Because the outer electrode pins of the conventional electrochromic device belong to different electrode layers, two outer electrode pins connected with the two electrode layers need to be manufactured step by step, so that the manufacturing process of the functional film layer is interrupted, and the process of manufacturing the outer electrode pins after the manufacturing process of the functional film layer is interrupted is very easy to cause the device to be polluted by the outside so as to reduce the optical quality of the device; the interruption of the functional film layer fabrication process also increases the fabrication cost of the device. The problems of large quantity of functional film layers and interruption of the manufacturing process of the functional film layers influence the popularization and application of the electrochromic technology in the fields of optics, display, safety and the like to a certain extent.

Disclosure of Invention

In order to solve the problems of large quantity of functional film layers and interruption of the manufacturing process of the functional film layers of the conventional electrochromic device, the invention provides an electrochromic device with two functional film layers; the electrochromic device with two functional film layers is an electrochromic device consisting of two substrates, a conductive and electrochromic dual-functional film layer, an electrolyte layer, packaging materials and electrode outer pins; the electrochromic device having two functional film layers may have a planar or non-planar shape.

The conductive and electrochromic double-function film layer is a film layer made of a material with dual functions of conductivity and electrochromic and is positioned between the inner surface of the substrate on one side and the electrolyte layer; the electrolyte layer is a film layer made of electrolyte material and is positioned between the conductive and electrochromic double-function film layer and the inner surface of the substrate on the other side; the outer pin of the electrode is a conductive member which is made of a conductive material, is connected with the conductive and electrochromic double-function film layer in the electrochromic device, and the outer end of the outer pin extends out of the range of the packaging material and the substrate and is used for conducting electricity; the packaging material is a member which connects the substrates at the two sides so as to seal the conductive and electrochromic bifunctional film layer and the electrolyte layer in the substrates at the two sides and the packaging material and isolate the substrates and the electrolyte layer from the outside; the packaging material does not package the outer end of the electrode outer pin inside the electrochromic device.

The electrochromic device with two functional film layers can be made into a perspective type electrochromic device or a reflection type electrochromic device.

For a see-through electrochromic device, all the substrates are transparent base members, the conductive and electrochromic dual-function film layer is a film layer which is transparent in a discolored state, and the electrolyte layer is a transparent film layer.

For a reflective electrochromic device, the reflective surface is disposed on a substrate on one side, the substrate having the reflective surface is a non-transparent base member as a whole, the substrate on the other side is a transparent base member, the conductive and electrochromic dual-function film layer is a film layer which is transparent in a discolored state, and the electrolyte layer is a transparent film layer.

When the conductive and electrochromic double-function film layer of the electrochromic device has the anode electrochromic characteristic, the conductive and electrochromic double-function film layer is communicated with the anode of a direct-current power supply (through an electrode outer pin), and the cathode of the direct-current power supply is grounded, so that the electrochromic device is colored; the conductive and electrochromic double-function film layer is communicated with the cathode of the direct current power supply (through an electrode outer pin), the anode of the direct current power supply is grounded, and the electrochromic device fades.

When the conductive and electrochromic double-function film layer of the electrochromic device has the cathode electrochromic characteristic, the conductive and electrochromic double-function film layer is communicated with the cathode of a direct-current power supply (through an electrode outer pin), the anode of the direct-current power supply is grounded, and the electrochromic device is colored; the conductive and electrochromic double-function film layer is communicated with the anode of a direct current power supply (through an electrode outer pin), the cathode of the direct current power supply is grounded, and the electrochromic device fades.

Compared with the prior art, the invention has the beneficial effects that: the number of functional film layers in the electrochromic device is reduced, and the optical performance of the electrochromic device is improved. Because only one conductive and electrochromic dual-function film layer and the corresponding electrode outer pin are arranged, the manufacture of the electrode outer pin can be completed on the substrate in advance, and then the manufacture of the functional film layer can be continuously carried out, the manufacture process of the functional film layer is not interrupted, and the optical quality of the device can be ensured. When the device works, only one pole of a direct current power supply is connected into the electrochromic device, and the other pole is grounded, so that the electrochromic function can be realized, and the external working circuit is simple in structure. The electrochromic device can be applied to the fields of glasses, automobile rearview mirrors, sun visors and the like.

Drawings

Fig. 1 is a schematic diagram of the relationship of an electrochromic device substrate and film layers having a substrate-electrode layer-electrochromic layer-electrolyte layer-ion storage layer-electrode layer-substrate structure;

fig. 2 is a schematic diagram of the coloring and external circuit relationship of an electrochromic device having a substrate-electrode layer-electrochromic layer-electrolyte layer-ion storage layer-electrode layer-substrate structure using an anodic electrochromic material;

fig. 3 is a schematic diagram showing the relationship between the discoloration and external circuit of an electrochromic device having a structure of substrate-electrode layer-electrochromic layer-electrolyte layer-ion storage layer-electrode layer-substrate using an anodic electrochromic material;

fig. 4 is a schematic diagram of the coloring and external circuit relationship of an electrochromic device having a substrate-electrode layer-electrochromic layer-electrolyte layer-ion storage layer-electrode layer-substrate structure using a cathode electrochromic material;

fig. 5 is a schematic diagram showing the relationship between the discoloration and external circuit of an electrochromic device having a structure of substrate-electrode layer-electrochromic layer-electrolyte layer-ion storage layer-electrode layer-substrate using a cathode electrochromic material;

FIG. 6 is a schematic view of the relationship between a substrate and a film layer according to the present invention;

FIG. 7 is a schematic diagram of the relationship between coloring and external circuit when the conductive and electrochromic dual-functional film layer employed in the present invention has anodic color change characteristics;

FIG. 8 is a schematic diagram showing the relationship between the discoloration and the external circuit when the conductive and electrochromic dual-functional film layer employed in the present invention has the anodic discoloration characteristic;

FIG. 9 is a schematic diagram of the relationship between coloring and external circuit when the conductive and electrochromic dual-functional film layer employed in the present invention has a cathodic discoloration characteristic;

FIG. 10 is a schematic diagram of the relationship between color fading and external circuit when the conductive and electrochromic dual-functional film layer employed in the present invention has a cathodic color change characteristic;

FIG. 11 is a schematic structural view of the present invention;

FIG. 12 is a left side view of FIG. 11;

FIG. 13 is a top view of FIG. 11;

FIG. 14 is a schematic diagram of the relationship between a one-sided substrate and the conductive and electrochromic bi-functional film layer, electrolyte layer and outer electrode leads of the present invention;

fig. 15 is a left side view of fig. 14.

The reference numbers are as follows: 1. the substrate I2, the substrate II 3, the packaging material 5, the electrode outer pin 112, the conductive and electrochromic double-function film layer 13 and the electrolyte layer.

Detailed Description

The following describes an embodiment of the present invention with reference to fig. 6 to 10 and fig. 11 to 15. The following description is only for the purpose of explanation and is not intended to limit the invention.

The electrochromic device with two functional film layers, as shown in fig. 11-15, is an electrochromic device composed of two substrates 1 and 2, a conductive and electrochromic dual-functional film layer 112, an electrolyte layer 13, a packaging material 3 and an electrode outer pin 5; the electrochromic device having two functional film layers may have a planar or non-planar shape.

The conductive and electrochromic double-function film layer is a film layer made of a material with dual functions of conductivity and electrochromic and is positioned between the inner surface of the substrate on one side and the electrolyte layer; the electrolyte layer is a film layer made of electrolyte material and is positioned between the conductive and electrochromic double-function film layer and the inner surface of the substrate on the other side; the outer pin of the electrode is a conductive member which is made of a conductive material, is connected with the conductive and electrochromic double-function film layer in the electrochromic device, and the outer end of the outer pin extends out of the range of the packaging material and the substrate and is used for conducting electricity; the packaging material is a member which connects the substrates at the two sides so as to seal the conductive and electrochromic bifunctional film layer and the electrolyte layer in the substrates at the two sides and the packaging material and isolate the substrates and the electrolyte layer from the outside; the packaging material does not package the outer end of the electrode outer pin inside the electrochromic device.

In the working state of the electrochromic device with the two functional film layers, the conductive and electrochromic double-functional film layer is communicated with one pole of the direct current power supply, and the other pole of the direct current power supply is grounded.

The electrochromic device with two functional film layers can be made into a perspective type electrochromic device or a reflection type electrochromic device.

For a see-through electrochromic device, all the substrates are transparent base members, the conductive and electrochromic dual-function film layer is a film layer which is transparent in a discolored state, and the electrolyte layer is a transparent film layer.

For a reflective electrochromic device, the light-reflecting surface thereof is provided on a substrate on one side, the substrate having the light-reflecting surface is a non-transparent base member as a whole, and the substrate on the other side is a transparent base member. The conductive and electrochromic bifunctional film layer is a film layer which is transparent in a fading state, and the electrolyte layer is a transparent film layer.

The transparent substrate may be made of glass, resin, or transparent plastic film, but is not limited thereto.

The opaque substrate having a reflective surface is made of a material including, but not limited to, a polished metal plate, a reflective-coated glass, and a reflective-coated plastic film.

The conductive and electrochromic bifunctional film layer with the anodic electrochromic characteristic is made of polypyrrole and polyaniline, but is not limited thereto.

The conductive and electrochromic double-function film layer with the cathode electrochromic characteristic is made of materials including poly [3,4- (2, 2' -dimethylpropylene dioxy) thiophene ] and poly (3, 4-ethylenedioxythiophene), but is not limited thereto.

The electrolyte layer is made of materials including, but not limited to, polytrimethylenecarbonate/LiClO 4, polylactone/LiClO 4, LiAlF4 and LiTaO 3.

When the conductive and electrochromic double-function film layer of the electrochromic device has the anode electrochromic characteristic, the conductive and electrochromic double-function film layer is communicated with the anode of a direct-current power supply (through an electrode outer pin), and the cathode of the direct-current power supply is grounded, so that the electrochromic device is colored (see figure 7); the conductive and electrochromic double-function film layer is communicated with the cathode of the direct current power supply (through the external electrode pin), the anode of the direct current power supply is grounded, and the electrochromic device fades (see fig. 8).

When the conductive and electrochromic double-function film layer of the electrochromic device has the cathode electrochromic characteristic, the conductive and electrochromic double-function film layer is communicated with the cathode of a direct-current power supply (through an electrode outer pin), the anode of the direct-current power supply is grounded, and the electrochromic device has a coloring phenomenon (see figure 9); the conductive and electrochromic double-function film layer is communicated with the anode of the direct current power supply (through the external electrode pin), the cathode of the direct current power supply is grounded, and the electrochromic device fades (see fig. 10).

Although the present invention has been described in detail, the present invention is not limited thereto, and any person may make various modifications according to the principle of the present invention. Accordingly, any modification made in accordance with the principles of the present invention should be considered as falling within the scope of the present invention.