CN118169926A

CN118169926A - Electrochromic layer and control method thereof

Info

Publication number: CN118169926A
Application number: CN202211582558.6A
Authority: CN
Inventors: 范振强
Original assignee: Shanghai Seafood Ape Technology Co ltd
Current assignee: Shanghai Seafood Ape Technology Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2024-06-11

Abstract

The invention discloses an electrochromic layer and a control method of the electrochromic layer, and relates to the technical field of electrochromic. The method is applied to an electrochromic layer, and comprises the following steps: a voltage is provided across at least one electrochromic material of the plurality of electrochromic materials to cause the electrochromic layer to exhibit a plurality of colors. The invention solves the technical problems that the electrochromic display presents single color, so that the application scene is limited and the large-scale application cannot be carried out in the related technology.

Description

Electrochromic layer and control method thereof

Technical Field

The invention relates to the technical field of electrochromic, in particular to an electrochromic layer and a control method of the electrochromic layer.

Background

The electrochromic technology is a technology for enabling the color of the electrochromic material to generate reversible change effect by applying voltage to the electrochromic material, has the characteristics of quick color change response and the like, and is widely applied to intelligent doors and windows, energy storage equipment, sensors, wearable equipment and the like.

At present, the electrochromic device can be made to be in a transparent state and an absorption state by an electrochromic technology, the absorption state can be black, red, green, blue and the like, the color is single and fixed, the color cannot be changed, and the application scene is limited. Through research and development of electrochromic materials capable of displaying different colors under different voltage stimulation, the electrochromic device can realize colorful absorption state colors, but the scheme generally causes poor cycling stability of the electrochromic device, short service life and incapability of realizing industrialization. In addition, the color can be changed by adding the color filter on the electrochromic device, but the color film attaching process is complex, the color filter is required to be changed, and the color filter cannot be applied on a large scale.

In view of the above problems, no effective solution has been proposed at present.

Disclosure of Invention

At least some embodiments of the present invention provide an electrochromic layer and a control method for the electrochromic layer, so as to at least solve the technical problem that in the related art, due to a single color presented by an electrochromic display, an application scene is limited, and large-scale application cannot be performed.

According to one embodiment of the present invention, there is provided an electrochromic layer including an isolation layer and electrochromic materials respectively located between the isolation layers, the electrochromic materials including a plurality of electrochromic materials exhibiting different colors under an electric field.

Optionally, a side of the isolation layer in contact with the electrochromic material is covered with a conductive layer, the conductive layer being coupled to the control circuit.

Optionally, the electrochromic material comprises at least one of: liquid, gel, solid film.

Optionally, the isolation layer is an inorganic material or an organic material.

Optionally, the conductive layer comprises at least one of: indium tin oxide, fluorine doped tin oxide, nano silver wire and carbon nano tube.

According to an embodiment of the present invention, there is further provided a method for controlling an electrochromic layer, applied to an electrochromic layer as in any one of the above, including: a voltage is provided across at least one electrochromic material of the plurality of electrochromic materials to cause the electrochromic layer to exhibit a plurality of colors.

Optionally, providing a voltage across at least one electrochromic material of the plurality of electrochromic materials to cause the electrochromic layer to assume a plurality of colors includes: providing a voltage across one of the electrochromic materials to cause the electrochromic layer to assume a first color, wherein the first color includes red, green, blue, and transparent colors; a voltage is applied across the plurality of electrochromic materials to cause the electrochromic layer to assume a second color, wherein the second color includes yellow, cyan, violet, and black.

Optionally, the method further comprises: and adjusting the voltage value at two ends of the at least one electrochromic material within a preset range to adjust the transmittance of the at least one electrochromic material, wherein the preset range is determined according to the oxidation-reduction potential of the at least one electrochromic material.

Optionally, the method further comprises: the concentration of the at least one electrochromic material is adjusted to adjust the transmittance of the at least one electrochromic material.

According to an embodiment of the present invention, there is also provided a control device for an electrochromic layer, for controlling the electrochromic layer as in any one of the above, including: and the control module is used for providing voltage to two ends of at least one electrochromic material in the plurality of electrochromic materials so as to enable the electrochromic layer to present various colors.

Optionally, the control module is further configured to provide a voltage across one of the electrochromic materials to cause the electrochromic layer to present a first color, wherein the first color includes red, green, blue, and transparent colors; a voltage is applied across the plurality of electrochromic materials to cause the electrochromic layer to assume a second color, wherein the second color includes yellow, cyan, violet, and black.

Optionally, the apparatus further comprises: the first adjusting module is used for adjusting the voltage values at two ends of at least one electrochromic material in a preset range so as to adjust the transmissivity of the at least one electrochromic material, wherein the preset range is determined according to the oxidation-reduction potential of the at least one electrochromic material.

Optionally, the apparatus further comprises: and the second adjusting module is used for adjusting the concentration of the at least one electrochromic material so as to adjust the transmittance of the at least one electrochromic material.

According to one embodiment of the present invention, there is also provided a computer-readable storage medium, in which a computer program is stored, wherein the computer program is arranged to perform the method of controlling an electrochromic layer in any of the above, when run on a computer or processor.

According to one embodiment of the present invention, there is also provided an electronic device including a memory having a computer program stored therein and a processor configured to run the computer program to perform the method of controlling the electrochromic layer in any one of the above.

In at least some embodiments of the present invention, a method of providing a voltage to two ends of at least one electrochromic material in a plurality of electrochromic materials to make the electrochromic layer present a plurality of colors is adopted, and by increasing the number of electrochromic materials, the electrochromic layer presents a plurality of colors (at least 8) through a simple process by pressurizing one electrochromic material alone or pressurizing a plurality of electrochromic materials together in combination, thereby realizing the technical effects that the electrochromic layer presents a plurality of colors (at least 8) through a simple process, realizing the technical effects that the electrochromic layer has rich color variation, has wide application scene and is suitable for large-scale application, and further solving the technical problems that the electrochromic display presents a single color, resulting in limited application scene and cannot be applied on a large scale in the related art.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

FIG. 1 is a schematic cross-sectional view of an electrochromic layer according to one embodiment of the invention;

FIG. 2 is a flow chart of a method of controlling an electrochromic layer according to one embodiment of the invention;

FIG. 3 is a schematic view of a transmission spectrum of an electrochromic material without an electric field according to an embodiment of the present invention;

FIG. 4 is a schematic view of a transmission spectrum of an electrochromic material under the action of an electric field according to an embodiment of the present invention;

FIG. 5 is a schematic view of a transmission spectrum of another electrochromic material provided according to an embodiment of the invention without the action of an electric field;

FIG. 6 is a schematic view of a transmission spectrum of another electrochromic material under the action of an electric field according to an embodiment of the invention;

FIG. 7 is a schematic view of a transmission spectrum of another electrochromic material provided in accordance with an embodiment of the present invention without the action of an electric field;

FIG. 8 is a schematic view of a transmission spectrum of another electrochromic material under the action of an electric field according to an embodiment of the invention;

FIG. 9 is a schematic diagram of transmission spectra of a plurality of electrochromic materials under simultaneous action of an electric field according to an embodiment of the present invention;

FIG. 10 is a schematic view of transmission spectra of a plurality of electrochromic materials under simultaneous action of an electric field according to an embodiment of the present invention;

FIG. 11 is a schematic view of transmission spectra of a plurality of electrochromic materials under simultaneous action of an electric field according to an embodiment of the present invention;

FIG. 12 is a schematic cross-sectional view of an electrochromic layer according to another embodiment of the invention;

FIG. 13 is a schematic cross-sectional view of an electrochromic layer according to another embodiment of the invention;

fig. 14 is a schematic structural view of a control device for an electrochromic layer according to an embodiment of the present invention.

Detailed Description

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

According to one embodiment of the present invention, there is provided an embodiment of a method of controlling an electrochromic layer, it being noted that the steps shown in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions, and, although a logical sequence is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than what is shown herein.

The method embodiments may be performed in an electronic device, similar control device or system that includes a memory and a processor. Taking an electronic device as an example, the electronic device may include one or more processors and memory for storing data. It will be appreciated by those of ordinary skill in the art that the foregoing structural descriptions are merely illustrative and are not intended to limit the structure of the electronic device. For example, the electronic device may also include more or fewer components than the above structural description, or have a different configuration than the above structural description.

The processor may include one or more processing units. For example: the processor may include a processing device such as a central processing unit (central processing unit, CPU). Wherein the different processing units may be separate components or may be integrated in one or more processors. In some examples, the electronic device may also include one or more processors.

The memory may be used to store a computer program, for example, a computer program corresponding to the control method of the electrochromic layer in the embodiment of the present invention, and the processor implements the control method of the electrochromic layer by running the computer program stored in the memory. The memory may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory. In some examples, the memory may further include memory remotely located with respect to the processor, which may be connected to the electronic device through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

According to one embodiment of the present invention, there is provided an electrochromic layer, and fig. 1 is a schematic cross-sectional view of the electrochromic layer according to one embodiment of the present invention, and as shown in fig. 1, the electrochromic layer includes an isolation layer and electrochromic materials, the electrochromic materials are respectively located between the isolation layers, and the electrochromic materials include a plurality of electrochromic materials that exhibit different colors under the action of an electric field.

The electrochromic layer in fig. 1 is exemplified by comprising four isolating layers and three electrochromic materials, the isolating layers being used for isolating different electrochromic materials from each other and transmitting the color of the electrochromic materials. The electrochromic materials are transparent under the action of no electric field, the colors can be reversibly changed under the action of the electric field, the electrochromic materials are respectively three different electrochromic materials of a first electrochromic material, a second electrochromic material and a third electrochromic material, the different electrochromic materials are different colors under the action of the electric field, and each electrochromic material is respectively positioned between two adjacent isolation layers.

The electrochromic layer shown in fig. 1 can present transparent color when any electrochromic material is not pressurized, and the transparent color is the color of three electrochromic materials under the action of no electric field.

The electrochromic layer shown in fig. 1 is also capable of assuming the color that any one electrochromic material is pressurized under the influence of an electric field. For example, if the first electrochromic material appears red under the action of an electric field, the electrochromic layer shown in fig. 1 appears red when only the first electrochromic material in fig. 1 is pressurized. If the second electrochromic material is green under the action of an electric field, the electrochromic layer shown in fig. 1 is green when only the second electrochromic material in fig. 1 is pressurized. If the third electrochromic material is blue under the action of the electric field, the electrochromic layer shown in fig. 1 is blue when only the third electrochromic material in fig. 1 is pressurized.

In addition, since different colors are obtained by overlapping colors, the electrochromic layer shown in fig. 1 can also present overlapping colors of colors presented by the plurality of electrochromic materials under the action of an electric field when any of the plurality of electrochromic materials is pressurized. For example, still taking the example that the first electrochromic material appears red under the action of an electric field, the second electrochromic material appears green under the action of an electric field, and the third electrochromic material appears blue under the action of an electric field, if the first electrochromic material and the second electrochromic material in fig. 1 are pressurized at the same time, the electrochromic layer shown in fig. 1 appears yellow. If the second electrochromic material and the third electrochromic material in fig. 1 are simultaneously pressurized, the electrochromic layer shown in fig. 1 assumes a cyan color. If the first electrochromic material and the third electrochromic material in fig. 1 are simultaneously pressurized, the electrochromic layer shown in fig. 1 assumes a purple color. If the first, second and third electrochromic materials of fig. 1 are simultaneously pressurized, the electrochromic layer of fig. 1 assumes a black color.

It can be seen that the electrochromic layer shown in fig. 1 can at least present eight colors, the color change is very abundant, and the abundant color change can be realized only by means of an external electric field, and the control principle is simple. In addition, the structural manufacturing process is simple, the large-scale production and the application are convenient, and the application scene is very wide, such as colorful display, neon lighting facilities and building curtain walls.

Optionally, the isolation layer is an inorganic material or an organic material. The isolation layer may be an inorganic material such as glass, and the refraction of light between interfaces may be reduced by maintaining the refractive indices of the glass and the electrochromic material close during light propagation, thereby improving light transmission efficiency. The isolation layer can also be an organic material such as a high molecular film such as thermoplastic Polyester (PET), polycarbonate (PC) or polymethyl methacrylate (PMMA), so as to adapt to the refractive index of the electrochromic material and meet the multifunctional requirements of electrochromic equipment.

The thickness of the barrier layer may be in the range of 0.3 mm to 2.5 mm, preferably 0.3 mm to 1.6 mm, depending on the circumstances.

Optionally, the electrochromic material comprises at least one of: liquid, gel, solid films (including polymeric films). For example, the liquid can be added into the electrochromic layer in a vacuum filling mode, and in order to prevent the liquid from splashing after the electrochromic layer is broken, a colloid or a solid film can be used for replacing the electrochromic material, so that the risk of splashing after the electrochromic layer is broken is avoided.

The thickness of the electrochromic material can be between 100 nanometers and 1 centimeter, depending on the actual situation.

In addition, the electrochromic layer includes a plurality of electrochromic materials that exhibit different colors under the action of an electric field. Illustratively, taking three electrochromic materials as examples, the electrochromic materials can be liquid, colloid or solid films with transmission spectrum characteristic peaks between 622 nm and 760 nm, 492 nm and 577 nm and 435 nm and 450 nm under the action of an external electric field, and can be understood as liquid, colloid or solid films with red, green and blue colors under the action of the external electric field.

Illustratively, electrochromic materials exhibiting red color under the application of an applied electric field can be prepared by preparing a mixed solution of 2,3,6,7,10, 11-hexahydroxytriphenylene solution containing 84 millimoles (mM) of 4,5,9, 10-PyDI-pyrenediimide (4, 5,9, 10-PyDI) cathode material, 70mM of tripropylamine anode material, and 500mM of aryltriflate ion salt in a glove box.

Electrochromic materials exhibiting green color under the application of an applied electric field can be prepared by preparing a2, 3,6,7,10, 11-hexahydroxytriphenylene mixed solution containing 42mM Naphthalimide (NDI) cathode material, 42mM Perylene Diimide (PDI) cathode material, 70mM tripropylamine anode material, and 500mM aryltriflate ion salt in a glove box.

Electrochromic materials which exhibit a blue color under the action of an applied electric field can be prepared by preparing a mixed solution containing 100mM of 1,4,5, 8-naphthalene tetracarboxylic acid diimide cathode material, 120mM of tripropylamine anode material and 500mM of aryltriflate ion salt in a glove box.

It will be appreciated that the superposition of different colors may exhibit different colors, and that the superposition of more colors may exhibit different colors, so that the electrochromic layer may exhibit more abundant colors, the electrochromic material is not limited to include three different electrochromic materials as shown in fig. 1, and accordingly, the isolation layer is not limited to include four isolation layers as shown in fig. 1, and the electrochromic layer may include more electrochromic materials, which is not limited by the embodiments of the present invention.

Optionally, a side of the isolation layer in contact with the electrochromic material is covered with a conductive layer, the conductive layer being coupled to the control circuit. As shown in fig. 1, since the electrochromic material needs to change color under the action of an applied electric field, a conductive layer is covered on a side of the isolation layer, which is in contact with the electrochromic material, where the conductive layer corresponds to an anode and a cathode of the electrochromic layer, and the conductive layer is coupled to a control circuit (not shown in fig. 1), so that a voltage can be supplied to the electrochromic material through the control circuit, so that the electrochromic material changes color, and thus the electrochromic layer exhibits a different color.

Optionally, the conductive layer comprises at least one of: indium tin oxide, fluorine doped tin oxide, nano silver wire and carbon nano tube. Among them, the conductive layer is preferably Indium Tin Oxide (ITO) or fluorine doped tin oxide (FTO).

The thickness of the conductive layer is between 10 nanometers and 250 nanometers, preferably in the range of 10 nanometers and 20 nanometers, and the transmittance is more than 90 percent, so that the electrochromic material can be ensured to change color under the action of an electric field, and the color of the electrochromic material can be transmitted out through the conductive layer and the isolation layer.

Optionally, the conductive layer is coupled to the control circuit by a metal paste (e.g., gold, silver, or copper, etc.), a conductive paste, or a conductive cloth. As shown in fig. 1, a2, b1, b2, c1 and c2 may be metal paste, conductive paste or conductive cloth, a1 and a2, b1 and b2, c1 and c2 are respectively coupled with the positive and negative poles of the power source, and voltages between a1 and a2, b1 and b2, c1 and c2 are adjusted by the control circuit, thereby adjusting the color of the electrochromic material.

Optionally, the adjacent isolation layers are sealed by sealant, the sealant can be photo-curing (UV curing) transparent glue, and the transparent glue is mixed with Polystyrene (PS) microspheres or polymethyl methacrylate (PMMA) microspheres and cured by a UV lamp irradiation mode.

The thickness of the sealant is 100 nm-1 cm, which is determined according to the particle size of PS microspheres or PMMA microspheres, it being understood that the thickness of the electrochromic material is determined according to the thickness of the sealant.

The electrochromic layer provided by the embodiment of the invention can realize rich color change only according to simple circuit control, has wide application scene, is simple in manufacturing process and is easy to produce and apply on a large scale.

According to an embodiment of the present invention, there is provided a method for controlling an electrochromic layer of an electronic device, which is applied to the electrochromic layer of any of the above embodiments, and fig. 2 is a flowchart of a method for controlling an electrochromic layer according to one embodiment of the present invention, as shown in fig. 2, and the flowchart includes the following steps:

step S201, providing a voltage across at least one electrochromic material of the plurality of electrochromic materials, so that the electrochromic layer presents a plurality of colors.

The electrochromic layers provided by the embodiment of the invention comprise a plurality of electrochromic materials, and voltage is provided to two ends of at least one electrochromic material, so that the color of the electrochromic material can be changed, and the color of the electrochromic layer is changed, so that the electrochromic layer presents a plurality of colors.

Through the steps, the method that voltages are provided to two ends of at least one electrochromic material in a plurality of electrochromic materials to enable the electrochromic layer to present a plurality of colors is adopted, the number of the electrochromic materials is increased, and the electrochromic materials are singly pressurized or combined to jointly pressurize the plurality of electrochromic materials, so that the purpose that the electrochromic layer presents a plurality of colors (at least 8 colors) through a simple process is achieved, the technical effects that the electrochromic layer is rich in color change, wide in application scene and suitable for large-scale application are achieved, and the technical problems that the electrochromic display presents a single color, the application scene is limited, and large-scale application cannot be carried out in the related art are solved.

Optionally, in step S201, providing a voltage across at least one electrochromic material of the plurality of electrochromic materials to cause the electrochromic layer to exhibit a plurality of colors may include performing the steps of:

Step S2011, providing a voltage across one electrochromic material to make the electrochromic layer present the first color.

Wherein the first color includes red, green, blue and transparent colors.

Taking three electrochromic materials as examples, namely a first electrochromic material, a second electrochromic material and a third electrochromic material, providing voltage to two ends of one electrochromic material, and changing the color of the electrochromic layer according to the color changing characteristics of the electrochromic material.

As shown in fig. 3, fig. 3 is a transmission spectrum of an electrochromic material under the action of no electric field, as shown in fig. 4, fig. 4 is a transmission spectrum of the electrochromic material under the action of an electric field, it can be seen that the transmittance of the electrochromic material under the action of an electric field is obviously reduced, good color-changing characteristics are provided, and the characteristic peak of the transmission spectrum is between 622 nm and 760 nm and shows red.

Thus, the plurality of electrochromic materials may comprise a liquid, gel or solid film having a transmission spectrum characteristic peak between 622 nm and 760 nm under the influence of an applied electric field, such that when a voltage is applied across the electrochromic material, the electrochromic layer is caused to appear red.

Correspondingly, as shown in fig. 5, fig. 5 is a transmission spectrum of another electrochromic material under the action of no electric field, as shown in fig. 6, fig. 6 is a transmission spectrum of the electrochromic material under the action of the electric field, and it can be seen that the transmittance of the electrochromic material under the action of the electric field is obviously reduced, the electrochromic material has good color-changing characteristics, and the characteristic peak of the transmission spectrum is between 492 nm and 577 nm and shows green color.

Thus, the plurality of electrochromic materials may comprise a liquid, gel or solid film having a transmission spectrum characteristic peak between 492 nm and 577 nm under the influence of an applied electric field such that when a voltage is applied across the electrochromic material, the electrochromic layer is rendered green.

Correspondingly, as shown in fig. 7, fig. 7 is a transmission spectrum of another electrochromic material under the action of no electric field, as shown in fig. 8, fig. 8 is a transmission spectrum of the electrochromic material under the action of the electric field, and it can be seen that the transmittance of the electrochromic material under the action of the electric field is obviously reduced, the electrochromic material has good color-changing characteristics, and the characteristic peak of the transmission spectrum is between 435 nm and 450 nm and shows blue color.

Thus, the plurality of electrochromic materials may comprise a liquid, colloidal or solid film having a transmission spectrum characteristic peak at 435 nm-450 nm under the influence of an applied electric field such that when a voltage is applied across the electrochromic material, the electrochromic layer is caused to appear blue.

In addition, when the voltage supplied to both ends of one electrochromic material is zero, the color of the electrochromic material is not changed, and the electrochromic layer presents transparent color.

Illustratively, when the electrochromic material is a liquid, colloid or solid film with a transmission spectrum characteristic peak between 622 nm and 760 nm, 492 nm and 577 nm and 435 nm and 450 nm under the action of an external electric field, by providing a voltage across one electrochromic material, the electrochromic layer can be made to present four colors of red, green, blue and transparent.

Step S2012, providing a voltage across the plurality of electrochromic materials to cause the electrochromic layer to exhibit the second color.

Wherein the second color comprises yellow, cyan, violet, and black.

Taking electrochromic materials as examples of liquid, colloid or solid films with transmission spectrum characteristic peaks between 622 nm and 760 nm, 492 nm and 577 nm and between 435 nm and 450 nm under the action of an applied electric field, namely taking electrochromic materials as examples of liquid, colloid or solid films which display red, green and blue under the action of the applied electric field. A voltage is supplied across the plurality of electrochromic materials, the electrochromic layers being capable of assuming different colors by color superposition.

Illustratively, taking the example of providing voltages across electrochromic materials that appear red and green under the action of an applied electric field at the same time, as shown in fig. 9, fig. 9 shows transmission spectra of a plurality of electrochromic materials under the action of an electric field at the same time, it can be seen that the plurality of electrochromic materials appear yellow under the action of an electric field.

Therefore, voltages are simultaneously provided to the two ends of the electrochromic materials with transmission spectrum characteristic peaks between 622 nanometers and 760 nanometers and 492 nanometers and 577 nanometers under the action of an external electric field, so that the electrochromic layer can be yellow.

Accordingly, taking the example of providing voltages to both ends of the electrochromic materials that are in green and blue colors under the action of the applied electric field at the same time, as shown in fig. 10, fig. 10 shows transmission spectra of a plurality of electrochromic materials under the action of the electric field at the same time, it can be seen that the plurality of electrochromic materials are in cyan colors under the action of the electric field.

Therefore, voltages are simultaneously supplied to the two ends of the electrochromic materials with transmission spectrum characteristic peaks between 492 nanometers and 577 nanometers and between 435 nanometers and 450 nanometers under the action of an external electric field, so that the electrochromic layer can be cyan.

Accordingly, taking the example of providing voltages to both ends of the electrochromic materials that appear red and blue under the action of the applied electric field, as shown in fig. 11, fig. 11 shows transmission spectra of a plurality of electrochromic materials under the action of the electric field at the same time, it can be seen that the plurality of electrochromic materials appear purple under the action of the electric field.

Therefore, voltages are simultaneously provided to the two ends of the electrochromic materials with transmission spectrum characteristic peaks between 622 nanometers and 760 nanometers and between 435 nanometers and 450 nanometers under the action of an external electric field, so that the electrochromic layer can be purple.

In addition, taking the example of providing voltages at both ends of the electrochromic materials which are in red, green and blue under the action of an external electric field, simultaneously providing voltages at both ends of a plurality of electrochromic materials with transmission spectrum characteristic peaks between 622 nm and 760 nm, between 492 nm and 577 nm and between 435 nm and 450 nm under the action of the external electric field can enable the electrochromic layers to be in black.

As shown in table 1 below, table 1 shows different colors of electrochromic layers corresponding to different voltage supply modes when the electrochromic layers include three electrochromic materials exhibiting red, green, and blue colors under the action of an electric field. It can be seen that when a voltage is applied across one electrochromic material, i.e. when a voltage is applied across one electrochromic material, the electrochromic layer assumes a first color (red, green, blue and transparent), and when a voltage is applied across a plurality of electrochromic materials, i.e. when a voltage is applied across a plurality of electrochromic materials, the electrochromic layer assumes a second color (yellow, cyan, violet and black).

TABLE 1

In addition, the amount of pressurization of different electrochromic materials may be different, and the amount of voltage provided across the electrochromic material may be determined based on the redox potential of the electrochromic material. Illustratively, providing a 1.2V voltage across the first electrochromic material can cause the color of the first electrochromic material to change, providing a 1.1V voltage across the second electrochromic material can cause the color of the second electrochromic material to change, and providing a 0.8V voltage across the third electrochromic material can cause the color of the third electrochromic material to change.

Therefore, according to the control method of the electrochromic layer, the electrochromic layer can realize rich color change only according to simple circuit control, so that the application scene of the electrochromic layer is wider.

Optionally, the method may further comprise the following performing steps:

step S202, adjusting voltage values at two ends of at least one electrochromic material within a preset range so as to adjust transmittance of the at least one electrochromic material.

Wherein the predetermined range is determined based on the redox potential of the at least one electrochromic material.

It is understood that the electrochromic material may be discolored when an applied voltage across the electrochromic material reaches a voltage corresponding to the oxidation-reduction potential. According to the color changing characteristics of the electrochromic materials, the color changing process is gradually performed, and the transmittance of the electrochromic materials is gradually reduced or gradually increased within a preset range, namely within a certain range before and after the oxidation-reduction potential, so that the voltage values of the two ends of at least one electrochromic material are adjusted within the preset range, the color of the electrochromic material can be changed in different degrees, and the color is more vivid and colorful.

For example, the preset range may be set to be between-0.3V and +0.3V, and the electrochromic material may appear red under the action of an electric field, and may appear light red when the voltage is-0.3V, and may appear dark red when the voltage is +0.3V.

Therefore, the transmittance of the electrochromic materials can be changed by adjusting the voltage values at the two ends of at least one electrochromic material within a preset range, namely the depth of the electrochromic materials is changed, so that the electrochromic materials show richer color changes, and further the electrochromic layers realize richer color changes.

Optionally, the method may further comprise the following performing steps:

Step S203, adjusting the concentration of at least one electrochromic material to adjust the transmittance of the at least one electrochromic material.

The concentration of the electrochromic material may be determined according to the amount of the material added when preparing the electrochromic material, and the number of moles of the material added.

In one case, the higher the concentration of electrochromic material, the lower the transmittance, i.e., the better the color change characteristics. Therefore, the aim of adjusting the transmissivity of at least one electrochromic material can be achieved by adjusting the concentration of the at least one electrochromic material, so that the color shade of the electrochromic material is changed, the color is more vivid and colorful, and the electrochromic layer realizes richer color change.

By way of example, the concentration of the electrochromic material can be adjusted so that the transmittance of the electrochromic material is changed between 35% and 95%, thereby changing the shade of the electrochromic material so that the color is more vivid and colorful.

In addition, it is understood that the control method of the electrochromic layer described above is not only applied to the electrochromic layer shown in fig. 1, but also to the electrochromic layer including more electrochromic materials, and embodiments of the present invention are not limited.

Alternatively, an embodiment of the present invention provides another electrochromic layer, as shown in fig. 12, fig. 12 is a schematic cross-sectional view of an electrochromic layer according to another embodiment of the present invention, the electrochromic layer shown in fig. 12 being an improvement over the electrochromic layer shown in fig. 1. The electrochromic layer shown in fig. 12 comprises eight isolation layers and three electrochromic materials, wherein two isolation layers are arranged between the electrochromic materials, so that the safety of the electrochromic layer can be improved, and the electrochromic layer is firmer.

The electrochromic layer shown in fig. 12 further includes a conductive layer, a sealant, and a plurality of metal patches or conductive patches, and specific roles can be seen from the description of fig. 1, which is not repeated here. Specific ways of controlling the circuit may be found in the description of fig. 1, which is not repeated here.

Alternatively, an embodiment of the present invention provides another electrochromic layer, as shown in fig. 13, fig. 13 is a schematic cross-sectional view of an electrochromic layer according to another embodiment of the present invention, the electrochromic layer shown in fig. 13 being another modification of the electrochromic layer shown in fig. 1. The electrochromic layer shown in fig. 13 combines the plurality of conductive patches in fig. 1, for example, a2 and b1 conductive patches in fig. 1 are combined into one integral conductive patch b, and b2 and c1 conductive patches in fig. 1 are combined into one integral conductive patch c, whereby the number of conductive patches of the electrochromic layer is reduced, including only four conductive patches, and the circuit control can be more conveniently performed, simplifying the structure of the control circuit.

Illustratively, by providing a voltage of 1.2V to the two ends of the first electrochromic material to change the color of the first electrochromic material, providing a voltage of 1.1V to the two ends of the second electrochromic material to change the color of the second electrochromic material, and providing a voltage of 0.8V to the two ends of the third electrochromic material to change the color of the third electrochromic material, for example, when the color of the electrochromic layer shown in fig. 13 is controlled to change, a voltage of 1.2V to between a and b can change the color of the first electrochromic material, i.e., the electrochromic layer is made red. A voltage of 1.1V between b and c can cause the color of the second electrochromic material to change, i.e., cause the electrochromic layer to appear green. The application of a voltage of 0.8V between c and d causes the color of the third electrochromic material to change, i.e. the electrochromic layer to appear blue. The application of a voltage of 2.3V between a and c causes the color of both the first electrochromic material and the second electrochromic material to change, i.e. the electrochromic layer to appear yellow. The application of a voltage of 1.9V between b and d causes the color of both the second and third electrochromic materials to change, i.e. the electrochromic layer is rendered cyan. By connecting 1.2V voltage between a and b and 0.8V voltage between c and d, the colors of the first electrochromic material and the third electrochromic material can be changed, namely the electrochromic layer is purple. The 3.1V voltage applied between a and d causes the color of all three electrochromic materials to change, i.e., the electrochromic layer appears black. The application of a voltage of 0V between a and d allows the color of all three electrochromic materials to be unchanged, i.e., the electrochromic layer to appear transparent.

The electrochromic layer shown in fig. 13 further includes a conductive layer and a sealant, and specific effects can be seen in the description of fig. 1, which is not repeated here.

The electrochromic layer provided by the embodiment of the invention can be applied singly, for example, in an intelligent door and window, and can also be combined with other devices, for example, combined with an LED lamp set to be used as display equipment or illumination equipment, and the embodiment of the invention is not limited.

From the description of the above embodiments, it will be clear to a person skilled in the art that the method according to the above embodiments may be implemented by means of software plus the necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.

In this embodiment, a device for controlling an electrochromic layer is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and is not described in detail. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. While the means described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.

Fig. 14 is a block diagram of a control device for an electrochromic layer according to one embodiment of the present invention, and as shown in fig. 14, the control device 1400 for an electrochromic layer includes: and the control module 1401, the control module 1401 is used for providing voltage to two ends of at least one electrochromic material in the plurality of electrochromic materials so as to enable the electrochromic layer to present a plurality of colors.

Optionally, the control module 1401 is further configured to provide a voltage across one electrochromic material to cause the electrochromic layer to present a first color, wherein the first color includes red, green, blue and transparent colors; a voltage is applied across the plurality of electrochromic materials to cause the electrochromic layer to assume a second color, wherein the second color includes yellow, cyan, violet, and black.

Optionally, the apparatus further comprises: the first adjustment module 1402, the first adjustment module 1402 is configured to adjust a voltage value across at least one electrochromic material within a preset range to adjust a transmittance of the at least one electrochromic material, wherein the preset range is determined according to an oxidation-reduction potential of the at least one electrochromic material.

Optionally, the apparatus further comprises: a second adjustment module 1403, the second adjustment module 1403 being configured to adjust a concentration of the at least one electrochromic material to adjust a transmittance of the at least one electrochromic material.

It should be noted that each of the above modules may be implemented by software or hardware, and for the latter, it may be implemented by, but not limited to: the modules are all located in the same processor; or the above modules may be located in different processors in any combination.

Embodiments of the present invention also provide a computer readable storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the method embodiments described above when run on a computer or processor.

Alternatively, in the present embodiment, the above-described computer-readable storage medium may be configured to store a computer program for performing the steps of:

Step S1, providing voltage to two ends of at least one electrochromic material in a plurality of electrochromic materials so as to enable the electrochromic layer to present a plurality of colors.

Alternatively, in the present embodiment, the above-described computer-readable storage medium may include, but is not limited to: a usb disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a removable hard disk, a magnetic disk, or an optical disk, or other various media in which a computer program can be stored.

An embodiment of the invention also provides an electronic device comprising a memory in which a computer program is stored and a processor arranged to run the computer program to perform the steps of any of the method embodiments described above.

Alternatively, in the present embodiment, the processor in the electronic device may be configured to execute the computer program to perform the steps of:

Alternatively, specific examples in this embodiment may refer to examples described in the foregoing embodiments and optional implementations, and this embodiment is not described herein.

The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.

In the several embodiments provided in the present invention, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims

1. An electrochromic layer, wherein the electrochromic layer comprises an isolation layer and electrochromic materials, the electrochromic materials are respectively positioned between the isolation layers, and the electrochromic materials comprise a plurality of electrochromic materials which show different colors under the action of an electric field.

2. The electrochromic layer according to claim 1, characterized in that the side of the isolating layer in contact with the electrochromic material is covered with a conductive layer, which is coupled with a control circuit.

3. The electrochromic layer according to claim 2, wherein the electrochromic material comprises at least one of: liquid, gel, solid film.

4. The electrochromic layer according to claim 3, characterized in that the isolating layer is an inorganic material or an organic material.

5. The electrochromic layer according to any one of claims 1-4, wherein the electrically conductive layer comprises at least one of: indium tin oxide, fluorine doped tin oxide, nano silver wire and carbon nano tube.

6. A method of controlling an electrochromic layer, applied to an electrochromic layer according to any one of claims 1 to 5, comprising:

a voltage is provided across at least one electrochromic material of the plurality of electrochromic materials to cause the electrochromic layer to assume a plurality of colors.

7. The method of claim 6, wherein providing a voltage across at least one electrochromic material of the plurality of electrochromic materials to cause the electrochromic layer to assume a plurality of colors comprises:

Providing a voltage across one electrochromic material to cause the electrochromic layer to assume a first color, wherein the first color includes red, green, blue, and transparent colors;

A voltage is provided across the plurality of electrochromic materials to cause the electrochromic layer to exhibit a second color, wherein the second color comprises yellow, cyan, violet, and black.

8. The method as recited in claim 7, further comprising:

And adjusting the voltage value at two ends of the at least one electrochromic material within a preset range to adjust the transmittance of the at least one electrochromic material, wherein the preset range is determined according to the oxidation-reduction potential of the at least one electrochromic material.

9. The method according to any one of claims 6-8, further comprising:

Adjusting the concentration of the at least one electrochromic material to adjust the transmittance of the at least one electrochromic material.

10. An electrochromic device comprising an electrochromic layer according to any one of claims 1-5.