阅读说明：本技术 一种电致变色器件和显示装置 (Electrochromic device and display device ) 是由 马中生 郝力强 刘宏俊 于 2020-08-18 设计创作，主要内容包括：本发明实施例公开了一种电致变色器件和显示装置。该电致变色器件包括：第一导电基底,第一导电基底包括第一导电膜、第一引线和第二引线,第一导电膜包括至少两个由内至外依次排布的第一导电部；其中,相邻两个第一导电部,外侧的第一导电部围绕内侧的第一导电部；至少一第一导电部的第一端连接一第一引线,第二端连接一第二引线；各第一引线连接第一电极,各第二引线连接第二电极。由此,通过在导电基底上设置多个由内至外依次排布的导电部,将各导电部的一端通过第一引线与第一电极连接,将各导电部的另一端通第二引线与第二电极连接,使得通电时各电路形成并联电路,各电路的电压电势相同,从而使得电致变色器件变色均匀。(The embodiment of the invention discloses an electrochromic device and a display device. The electrochromic device includes: the first conductive substrate comprises a first conductive film, a first lead and a second lead, and the first conductive film comprises at least two first conductive parts which are sequentially arranged from inside to outside; the outer first conductive part surrounds the inner first conductive part; the first end of at least one first conductive part is connected with a first lead, and the second end of the at least one first conductive part is connected with a second lead; each first lead is connected with the first electrode, and each second lead is connected with the second electrode. Therefore, the plurality of conducting parts sequentially arranged from inside to outside are arranged on the conducting substrate, one end of each conducting part is connected with the first electrode through the first lead, the other end of each conducting part is connected with the second electrode through the second lead, so that when the conducting substrate is electrified, each circuit forms a parallel circuit, the voltage potential of each circuit is the same, and the electrochromic device is uniform in color change.)

1. An electrochromic device, comprising:

the first conductive substrate comprises a first conductive film, a first lead and a second lead, and the first conductive film comprises at least two first conductive parts which are sequentially arranged from inside to outside; wherein, two adjacent first conductive parts, the first conductive part at the outer side surrounds the first conductive part at the inner side;

the first end of at least one first conductive part is connected with one first lead, and the second end of the first conductive part is connected with one second lead; each first lead is connected with a first electrode, and each second lead is connected with a second electrode.

2. The electrochromic device according to claim 1, wherein the first conductive portions are concentrically arranged.

3. The electrochromic device according to claim 1, wherein the first conductive portion at the innermost side is circular, and the first conductive portions other than the innermost side are circular arc-shaped; the innermost first conductive part is connected with the first lead or the second lead; the first end of each of the first conductive parts other than the innermost part is connected to one of the first leads, and the second end is connected to one of the second leads.

4. The electrochromic device according to claim 1, wherein the innermost of said first conductive portions is square, and the first conductive portions other than the innermost are square-ring-shaped; the innermost first conductive part is connected with the first lead or the second lead; the first end of each of the first conductive parts other than the innermost part is connected to one of the first leads, and the second end is connected to one of the second leads.

5. The electrochromic device according to claim 1, further comprising a second conductive substrate comprising a second conductive film, a third lead, and a fourth lead, wherein the second conductive film comprises at least two second conductive portions arranged in sequence from inside to outside; wherein, two adjacent second conductive parts, the outer second conductive part surrounds the inner second conductive part;

the first end of at least one second conductive part is connected with a third lead, and the second end of the second conductive part is connected with a fourth lead; each of the third leads is connected to the first electrode, and each of the fourth leads is connected to the second electrode.

6. The electrochromic device according to claim 5, wherein the second conductive portions are concentrically arranged.

7. The electrochromic device according to claim 5, wherein said second conductive portion at the innermost side is circular, and said second conductive portions other than the innermost side are circular arc-shaped; the innermost second conductive part is connected with one third lead or one fourth lead; the first end of each of the second conductive parts other than the innermost part is connected to one of the third leads, and the second end is connected to one of the fourth leads.

8. The electrochromic device according to claim 5, wherein the second conductive portion at the innermost side is square, and the second conductive portions other than the innermost side are square ring-shaped; the innermost second conductive part is connected with one third lead or one fourth lead; the first end of each of the second conductive parts other than the innermost part is connected to one of the third leads, and the second end is connected to one of the fourth leads.

9. The electrochromic device of claim 5, further comprising an electrochromic layer disposed between the first and second conductive substrates.

10. A display device comprising the electrochromic device according to any one of claims 1 to 9.

Technical Field

The embodiment of the invention relates to the technical field of display, in particular to an electrochromic device and a display device.

Background

The electrochromic glass is used for building outer walls, mobile electronic equipment, wearable equipment and vehicle outer windows, and can realize the effects of isolating ultraviolet rays, reducing glare effect and protecting human eyes. The electrochromic film can also be used for transparent display, and plays a role in enhancing display contrast, reducing glare and protecting human eyes. The electrochromic device generates reversible and stable color change and transparency change under the action of an external voltage, thereby realizing the effect.

However, when a device with a large size is manufactured, since the area of the device is large, voltage potential is attenuated in the process of conducting the device from the edge after voltage is switched on, and the phenomenon of nonuniform color change is easily caused in electrochromic.

Disclosure of Invention

The invention provides an electrochromic device and a display device, wherein a plurality of conducting parts which are sequentially arranged from inside to outside are arranged on a conducting substrate, one end of each conducting part is connected with a first electrode through a first lead, the other end of each conducting part is connected with a second electrode through a second lead, so that each circuit forms a parallel circuit when being electrified, the voltage and the potential of each circuit are the same, and the electrochromic device is uniform in color change.

In a first aspect, an embodiment of the present invention provides an electrochromic device, including:

the first conductive substrate comprises a first conductive film, a first lead and a second lead, and the first conductive film comprises at least two first conductive parts which are sequentially arranged from inside to outside; wherein, two adjacent first conductive parts, the first conductive part at the outer side surrounds the first conductive part at the inner side;

the first end of at least one first conductive part is connected with one first lead, and the second end of the first conductive part is connected with one second lead; each first lead is connected with a first electrode, and each second lead is connected with a second electrode.

Optionally, the first conductive portions are concentrically arranged.

Optionally, the first conductive part at the innermost side is circular, and the first conductive parts at the other innermost sides are arc-shaped; the innermost first conductive part is connected with the first lead or the second lead; the first end of each of the first conductive parts other than the innermost part is connected to one of the first leads, and the second end is connected to one of the second leads.

Optionally, the first conductive part at the innermost side is square, and the first conductive parts at the other innermost sides are square rings; the innermost first conductive part is connected with the first lead or the second lead; the first end of each of the first conductive parts other than the innermost part is connected to one of the first leads, and the second end is connected to one of the second leads.

Optionally, the display device further comprises a second conductive substrate, wherein the second conductive substrate comprises a second conductive film, a third lead and a fourth lead, and the second conductive film comprises at least two second conductive parts arranged in sequence from inside to outside; wherein, two adjacent second conductive parts, the outer second conductive part surrounds the inner second conductive part;

the first end of at least one second conductive part is connected with a third lead, and the second end of the second conductive part is connected with a fourth lead; each of the third leads is connected to the first electrode, and each of the fourth leads is connected to the second electrode.

Optionally, the second conductive portions are concentrically arranged.

Optionally, the second conductive part at the innermost side is circular, and the second conductive parts at the other innermost sides are arc-shaped; the innermost second conductive part is connected with one third lead or one fourth lead; the first end of each of the second conductive parts other than the innermost part is connected to one of the third leads, and the second end is connected to one of the fourth leads.

Optionally, the second conductive part at the innermost side is square, and the second conductive parts at the other innermost sides are square rings; the innermost second conductive part is connected with one third lead or one fourth lead; the first end of each of the second conductive parts other than the innermost part is connected to one of the third leads, and the second end is connected to one of the fourth leads.

Optionally, the display device further comprises an electrochromic layer disposed between the first conductive substrate and the second conductive substrate.

In a second aspect, embodiments of the present invention further provide a display apparatus, including the electrochromic device according to the first aspect.

The present invention provides an electrochromic device including: the first conductive substrate comprises a first conductive film, a first lead and a second lead, and the first conductive film comprises at least two first conductive parts which are sequentially arranged from inside to outside; the outer first conductive part surrounds the inner first conductive part; the first end of at least one first conductive part is connected with a first lead, and the second end of the at least one first conductive part is connected with a second lead; each first lead is connected with the first electrode, and each second lead is connected with the second electrode. Therefore, the plurality of conducting parts sequentially arranged from inside to outside are arranged on the conducting substrate, one end of each conducting part is connected with the first electrode through the first lead, the other end of each conducting part is connected with the second electrode through the second lead, so that when the conducting substrate is electrified, each circuit forms a parallel circuit, the voltage potential of each circuit is the same, and the electrochromic device is uniform in color change.

Drawings

Fig. 1 is a schematic structural view of a first conductive substrate of an electrochromic device in an embodiment of the invention;

FIG. 2 is a schematic diagram of a first conductive substrate of yet another electrochromic device in an embodiment of the invention;

FIG. 3 is a schematic diagram of a first conductive substrate of yet another electrochromic device in an embodiment of the invention;

FIG. 4 is a schematic diagram of a first conductive substrate of yet another electrochromic device in an embodiment of the invention;

FIG. 5 is a schematic diagram of a second conductive substrate of an electrochromic device in an embodiment of the invention;

FIG. 6 is a schematic diagram of a second conductive substrate of yet another electrochromic device in an embodiment of the invention;

FIG. 7 is a schematic diagram of a second conductive substrate of yet another electrochromic device in an embodiment of the invention;

FIG. 8 is a schematic diagram of a second conductive substrate of yet another electrochromic device in an embodiment of the invention;

fig. 9 is a schematic view of the overall structure of an electrochromic device provided in the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

As described in the background section, when an electrochromic device with a large size is manufactured, since the device area is large, after a voltage is turned on from the edge, the voltage potential is attenuated in the process of conducting to the inside of the device, so that the electrochromic device is easy to have a nonuniform color change phenomenon.

In view of the above problems, embodiments of the present invention provide an electrochromic device. Fig. 1 is a schematic structural diagram of a first conductive substrate of an electrochromic device provided in an embodiment of the present invention, and referring to fig. 1, the electrochromic device includes a first conductive substrate, the first conductive substrate includes a first conductive film 10, a first lead 20 and a second lead 30, the first conductive film 10 includes at least two first conductive portions sequentially arranged from inside to outside, for example, a first conductive portion 11, a second first conductive portion 12 and a third first conductive portion 13 sequentially arranged from inside to outside in fig. 1; wherein, two adjacent first conductive parts, the outer first conductive part surrounds the inner first conductive part, such as the adjacent first conductive part 11 and second first conductive part 12 in fig. 1, the second first conductive part 12 is outside the first conductive part 11, the second first conductive part 12 surrounds the inner first conductive part 11; a first end of at least one first conductive part is connected with a first lead, a second end is connected with a second lead, for example, in fig. 1, the first end of a first conductive part 11 is connected with a first lead 21, the second end of the first conductive part 11 is connected with a first second lead 31, the first end of a second first conductive part 12 is connected with a second first lead 22, the second end of the second first conductive part 12 is connected with a second lead 32, the first end of a third first conductive part 13 is connected with a third first lead 23, and the second end of the third first conductive part 13 is connected with a third second lead 33; each first lead is connected to the first electrode 1 and each second lead is connected to the second electrode 2, for example, a first lead 21, a second first lead 22 and a third first lead 23 in fig. 1 are respectively connected to the first electrode 1. The first second lead 31, the second lead 32 and the third second lead 33 are connected to the second electrode 2, respectively.

Note that fig. 1 shows only an example in which the first conductive portion has an arc shape, and the first conductive portion may have a square shape, for example, and is not particularly limited in this embodiment.

The first conductive parts are sequentially arranged from inside to outside, two adjacent first conductive parts are arranged, and the first conductive part on the outer side surrounds the first conductive part on the inner side, so that a plurality of electrode areas can be formed. The first leads and the second leads may be provided in separate lead regions, the first leads may be provided so as not to cross each other, for example, so as to be parallel to each other, the second leads may be provided so as not to cross each other, for example, so as to be parallel to each other, the first leads and the second leads may be provided so as not to cross each other, for example, so as to be parallel to each other, and the first conductive portions may be independently led out to the first electrodes and/or the second electrodes through the first leads and/or the second leads. The first electrode may be a positive electrode, and the second electrode may be a negative electrode. Alternatively, the first electrode is a negative electrode and the second electrode is a positive electrode.

The first conductive part 11, the first lead 21 and the first second lead 31 form a first circuit, the second first conductive part 12, the second first lead 22 and the second lead 32 form a second circuit, and the third first conductive part 13, the third first lead 23 and the third second lead 33 form a third circuit. When the first electrode 1 and the second electrode 2 are connected with a power supply, parallel circuits are formed among the first circuit, the second circuit and the third circuit, and the voltage potentials of the circuits are the same, so that the electron transmission rates of all parts in the device are uniform, and the color of the electrochromic device is uniform.

It should be noted that fig. 1 only shows three first conductive portions, three first leads and three second leads, and the number of the first conductive portions, the three first leads and the three second leads may also include a plurality of first conductive portions according to actual needs, which is not specifically limited in this embodiment.

The technical solution of this embodiment is to provide an electrochromic device, including: the first conductive substrate comprises a first conductive film, a first lead and a second lead, and the first conductive film comprises at least two first conductive parts which are sequentially arranged from inside to outside; the outer first conductive part surrounds the inner first conductive part; the first end of at least one first conductive part is connected with a first lead, and the second end of the at least one first conductive part is connected with a second lead; each first lead is connected with the first electrode, and each second lead is connected with the second electrode. Therefore, the plurality of conducting parts sequentially arranged from inside to outside are arranged on the conducting substrate, one end of each conducting part is connected with the first electrode through the first lead, the other end of each conducting part is connected with the second electrode through the second lead, so that when the conducting substrate is electrified, each circuit forms a parallel circuit, the voltage potential of each circuit is the same, and the electrochromic device is uniform in color change.

In one embodiment, fig. 2 is a schematic structural diagram of a first conductive substrate of another electrochromic device provided in the examples of the present invention. The first conductive part at the innermost side is circular, and the first conductive parts at the other sides of the innermost side are arc-shaped; the first conductive part at the innermost side is connected with a first lead or a second lead; the first end of each first conductive part except the innermost side is connected with a first lead, and the second end is connected with a second lead.

Specifically, referring to fig. 2, the first innermost first conductive portion 11 is circular, and the first conductive portions other than the innermost first conductive portion are arc-shaped, for example, the second first conductive portion 12 and the third first conductive portion 13 other than the innermost first conductive portion are arc-shaped. The innermost first conductive part 11 is connected to either the first lead or the second lead, the first conductive part 11 being shown exemplarily in fig. 2 connected to the first lead 21, or the first conductive part 11 may also be connected to only the second lead. The first end of each of the first conductive parts other than the innermost side is connected to a first lead, and the second end is connected to a second lead, for example, the first end of the second first conductive part 12 other than the innermost side is connected to the second first lead 22, the second end of the second first conductive part 12 is connected to the first second lead 31, the first end of the third first conductive part 13 is connected to the third first lead 23, and the second end of the third first conductive part 13 is connected to the second lead 32. The first lead 21, the second first lead 22 and the third first lead 23 are connected to the first electrode 1, respectively, and the first second lead 31 and the second lead 32 are connected to the second electrode 2, respectively.

Further, in one embodiment, each of the first conductive portions may have a circular arc shape. Referring to fig. 1, the innermost first conductive portion 11, the second first conductive portion 12 other than the innermost first conductive portion, and the third first conductive portion 13 are all arc-shaped. A first end of the first conductive part 11 is connected to the first lead 21, and a second end is connected to the first second lead 31; a first end of the second first conductive part 12 is connected to the second first lead 22, and a second end is connected to the second lead 32; the third first conductive part 13 has a first end connected to the third first lead 23 and a second end connected to the third second lead 33. The first lead 21, the second first lead 22 and the third first lead 23 are connected to the first electrode 1, respectively, and the first second lead 31, the second lead 32 and the third second lead 33 are connected to the second electrode 2, respectively. The first conductive part 11 forms a first circuit with the first lead 21 and the first second lead 31, the second first conductive part 12 forms a second circuit with the second first lead 22 and the second lead 32, and the third first conductive part 13 forms a third circuit with the third first lead 23 and the third second lead 33. When the first electrode 1 and the second electrode 2 are powered on, parallel circuits are formed among the first circuit, the second circuit and the third circuit, and the voltage potentials of the circuits are the same, so that the electrochromic device is uniform in color change.

In one implementation, fig. 3 is a schematic structural diagram of a first conductive substrate of another electrochromic device according to an embodiment of the present invention. The first conductive part at the innermost side is square, and the first conductive parts outside the innermost side are in a square ring shape; the first conductive part at the innermost side is connected with a first lead or a second lead; the first end of each first conductive part except the innermost side is connected with a first lead, and the second end is connected with a second lead.

Referring to fig. 3, the first conductive portion 11 located at the innermost side is square, and the second first conductive portion 12 and the third first conductive portion 13 located at the outermost side are square rings. The innermost first conductive part 11 is connected to either the first lead or the second lead, fig. 3 exemplarily showing that the first conductive part 11 is connected to the first second lead 31, or the first conductive part 11 may also be connected to only the first lead. The first end of each of the first conductive parts other than the innermost side is connected to a first lead, and the second end is connected to a second lead, for example, the first end of the second first conductive part 12 other than the innermost side is connected to the first lead 21, the second end of the second first conductive part 12 is connected to the second lead 32, the first end of the third first conductive part 13 is connected to the second first lead 22, and the second end of the third first conductive part 13 is connected to the third second lead 33. The first lead 21 and the second first lead 22 are connected to the first electrode 1, respectively, and the first second lead 31, the second lead 32, and the third second lead 33 are connected to the second electrode 2, respectively.

In one embodiment, each of the first conductive portions may have a square ring shape. Fig. 4 is a schematic structural diagram of a first conductive substrate of another electrochromic device provided in the embodiment of the present invention, and referring to fig. 4, an innermost first conductive portion 11, a second conductive portion 12 outside the innermost, and a third first conductive portion 13 are all in a square ring shape.

In one embodiment, the first conductive portions are concentrically arranged. For example, referring to fig. 1 to 4, the first conductive portion 11, the second first conductive portion 12, and the third first conductive portion 13 are concentrically arranged. By concentrically arranging the first conductive parts, the voltage and potential distribution is uniform when the first conductive parts are electrified, and the uniformity of electrochromism can be further improved.

In an implementation manner, fig. 5 is a schematic structural diagram of a second conductive substrate of an electrochromic device provided in an embodiment of the present invention, and referring to fig. 5, the electrochromic device further includes the second conductive substrate, where the second conductive substrate includes a second conductive film 100, a third lead 200, and a fourth lead 300, and the second conductive film 100 includes at least two second conductive portions arranged sequentially from inside to outside, for example, a first second conductive portion 101, a second conductive portion 102, and a third second conductive portion 103 arranged sequentially from inside to outside in fig. 5; two adjacent second conductive parts, the outer second conductive part surrounding the inner second conductive part, such as the adjacent first second conductive part 101 and second conductive part 102 in fig. 5, the second conductive part 102 being outside the first second conductive part 101, the second conductive part 102 surrounding the inner first second conductive part 101; a third lead is connected to the first end of at least one second conductive part, and a fourth lead is connected to the second end, for example, in fig. 5, the first end of the first second conductive part 101 is connected to the first third lead 201, the second end of the first second conductive part 101 is connected to the first fourth lead 301, the first end of the second conductive part 102 is connected to the second third lead 202, the second end of the second conductive part 102 is connected to the second fourth lead 302, the first end of the third second conductive part 103 is connected to the third lead 203, and the second end of the third second conductive part 103 is connected to the third fourth lead 303; each third lead is connected to the first electrode 1, and each fourth lead is connected to the second electrode 2, for example, in fig. 5, a first third lead 201, a second third lead 202, and a third lead 203 are respectively connected to the first electrode 1. A first fourth lead 301, a second fourth lead 302, and a third fourth lead 303 are connected to the second electrode 2, respectively.

The second conductive parts are arranged in sequence from inside to outside, two adjacent second conductive parts are adjacent, and the second conductive part on the outer side surrounds the second conductive part on the inner side, so that a plurality of electrode areas can be formed. The third leads and the fourth leads may be provided in separate lead regions, the third leads may be provided so as not to cross each other, for example, so as to be parallel to each other, the fourth leads may be provided so as not to cross each other, for example, so as to be parallel to each other, the third leads and the fourth leads may be provided so as not to cross each other, for example, so as to be parallel to each other, and the second conductive portions may be led out to the first electrode and/or the second electrode through the third leads and/or the fourth leads independently.

The first second conductive part 101, the first third lead 201 and the first fourth lead 301 form a fourth circuit, the second conductive part 102, the second third lead 202 and the second fourth lead 302 form a fifth circuit, and the third second conductive part 103, the third lead 203 and the third fourth lead 303 form a sixth circuit. When the first electrode 1 and the second electrode 2 are powered on, parallel circuits are formed among the fourth circuit, the fifth circuit and the sixth circuit, and the voltage potentials of the circuits are the same, so that the electron transmission rates of all parts in the device are uniform, and the color of the electrochromic device is uniform.

It should be noted that fig. 5 only shows three second conductive portions, three third leads and three fourth leads, and the number of the third leads and the number of the fourth leads may also include a plurality according to actual needs, which is not specifically limited in this embodiment.

In one implementation, fig. 6 is a schematic structural diagram of a second conductive substrate of another electrochromic device provided in the embodiments of the present disclosure. The second conductive part at the innermost side is circular, and the second conductive parts except the innermost side are arc-shaped; the innermost second conductive part is connected with a third lead or a fourth lead; the first end of each second conductive part except the innermost side is connected with a third lead, and the second end is connected with a fourth lead.

Specifically, referring to fig. 6, the innermost first second conductive portion 101 is circular, and the second conductive portions other than the innermost portions are arc-shaped, for example, the innermost second conductive portion 102 and the third second conductive portion 103 are arc-shaped. The innermost first second conductive part 101 is connected to the third lead or the fourth lead, fig. 6 exemplarily shows that the first second conductive part 101 is connected to the first third lead 201, or the first second conductive part 101 may also be connected to the fourth lead only. The first end of each of the second conductive parts other than the innermost portion is connected to a third lead, and the second end is connected to a fourth lead, for example, the first end of the second conductive part 102 other than the innermost portion is connected to the second third lead 202, the second end of the second conductive part 102 is connected to the first fourth lead 301, the first end of the third second conductive part 103 is connected to the third lead 203, and the second end of the third second conductive part 103 is connected to the second fourth lead 302. A first third lead 201, a second third lead 202 and a third lead 203 are connected to the first electrode 1, respectively, and a first fourth lead 301 and a second lead 302 are connected to the second electrode 2, respectively.

With reference to fig. 2 and 6, the first conductive portion 11 and the first lead 21 form a seventh circuit, the second first conductive portion 12 and the second first lead 22 and the second lead 32 form a second circuit, the third first conductive portion 13 and the third first lead 23 and the third second lead 33 form a third circuit, the first second conductive portion 101 and the first third lead 201 form an eighth circuit, the second conductive portion 102 and the second third lead 202 and the second fourth lead 302 form a fifth circuit, and the third second conductive portion 103 and the third lead 203 and the third fourth lead 303 form a sixth circuit. When the first electrode 1 and the second electrode 2 are powered on, parallel circuits are formed among the seventh circuit, the second circuit, the third circuit, the eighth circuit, the fifth circuit and the sixth circuit, and the voltage potentials of the circuits are the same, so that the electrochromic device is uniform in color change.

Further, in one embodiment, each of the first conductive portions may have a circular arc shape. Referring to fig. 5, each of the innermost first second conductive portion 101, the second conductive portion 102 other than the innermost second conductive portion, and the third second conductive portion 103 has an arc shape. A first end of the first second conductive part 101 is connected to the first third lead 201, and a second end is connected to the first fourth lead 301; a first end of the second conductive portion 102 is connected to the second third lead 202, and a second end is connected to the second fourth lead 302; the third second conductive part 103 has a first end connected to the third lead 203 and a second end connected to the third fourth lead 303. A first third lead 201, a second third lead 202 and a third lead 203 are connected to the first electrode 1, respectively, and a first fourth lead 301, a second fourth lead 302 and a third fourth lead 303 are connected to the second electrode 2, respectively. The first second conductive part 101 forms a fourth circuit with the first third lead 201 and the first fourth lead 301, the second conductive part 102 forms a fifth circuit with the second third lead 202 and the second fourth lead 302, and the third second conductive part 103 forms a sixth circuit with the third lead 203 and the third fourth lead 303. When the first electrode 1 and the second electrode 2 are powered on, parallel circuits are formed among the fourth circuit, the fifth circuit and the sixth circuit, and the voltage potentials of the circuits are the same, so that the electrochromic device is uniform in color change.

In one implementation, fig. 7 is a schematic structural diagram of a second conductive substrate of another electrochromic device provided in the examples of the present invention. The second conductive part at the innermost side is square, and the second conductive parts outside the innermost side are square ring-shaped; the innermost second conductive part is connected with a third lead or a fourth lead; the first end of each second conductive part except the innermost side is connected with a third lead, and the second end is connected with a fourth lead.

Referring to fig. 7, the first second conductive portion 101 located at the innermost side is square, and the second conductive portion 102 and the third second conductive portion 103 located at the outermost side are square-ring-shaped. The innermost first second conductive part 101 is connected to the third lead or the fourth lead, fig. 7 exemplarily shows that the first second conductive part 101 is connected to the first fourth lead 301, or the first second conductive part 101 may also be connected to the third lead only. The first end of each of the second conductive parts other than the innermost side is connected to a third lead, and the second end is connected to a fourth lead, for example, the first end of the second conductive part 102 other than the innermost side is connected to the first third lead 201, the second end of the second conductive part 102 is connected to the second fourth lead 302, the first end of the third second conductive part 103 is connected to the second third lead 202, and the second end of the third second conductive part 103 is connected to the third fourth lead 303. The first third lead 201 and the second third lead 202 are connected to the first electrode 1, respectively, and the first fourth lead 301, the second fourth lead 302, and the third fourth lead 303 are connected to the second electrode 2, respectively.

In one embodiment, each of the second conductive portions may have a square ring shape. Fig. 8 is a schematic structural diagram of a second conductive substrate of another electrochromic device provided in the embodiment of the present invention, and referring to fig. 8, an innermost first second conductive portion 101, a second conductive portion 102 outside the innermost side, and a third second conductive portion 103 are all in a square ring shape.

In one embodiment, the second conductive portions are concentrically disposed. For example, referring to fig. 5 to 8, a first second conductive portion 101, a second conductive portion 102, and a third second conductive portion 103 are concentrically arranged. By concentrically arranging the second conductive parts, the voltage and potential distribution is uniform when the second conductive parts are electrified, and the uniformity of electrochromism can be further improved.

Alternatively, fig. 9 is a schematic diagram of an overall structure of an electrochromic device provided in an embodiment of the present invention, and referring to fig. 9, the electrochromic device further includes an electrochromic layer 120 disposed between the first conductive substrate 110 and the second conductive substrate 130.

Wherein the electrochromic device may further include only the first conductive substrate 110 and the electrochromic layer 120, or only the second conductive substrate 130 and the electrochromic layer 120.

In one embodiment, the invention also provides a display device. The display device comprises the electrochromic device according to any of the embodiments of the present invention.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.