An electrochromic device and an electronic terminal comprising the same

Abstract

The application provides an electrochromic device and an electronic terminal comprising the same. The electrochromic device comprises a first substrate layer, a first transparent conductive layer, a solid-state variable color layer, a second transparent conductive layer and a second substrate layer which are sequentially stacked; the electrochromic device has a variable color region and a closed non-variable color region, and the non-variable color region divides the variable color region into at least two discontinuous parts; the non-variable color region comprises a non-closed first pattern region arranged on the first transparent conductive layer and a non-closed second pattern region arranged on the second transparent conductive layer; wherein the first pattern region is electrically disconnected with the region of the first transparent conductive layer except the first pattern region, and the second pattern region is electrically disconnected with the region of the second transparent conductive layer except the second pattern region. The electrochromic device provided by the application can present a closed pattern, and realizes the breakpoint compatibility effect of display technology.

Description

[0001] This invention patent application is a divisional application of Chinese patent application filed on October 26, 2020, entitled "Electrochromic Device and Electronic Terminal Including the Same", with application number 202011157130.8. Technical Field

[0002] This invention belongs to the field of electrochromic technology, specifically relating to an electrochromic device and an electronic terminal containing the same. Background Technology

[0003] Electrochromism refers to the phenomenon where the optical properties of a material undergo stable and reversible color changes under the influence of an applied electric field, manifesting as reversible changes in color and transparency. Materials exhibiting electrochromic properties are called electrochromic materials, which can be divided into inorganic and organic electrochromic materials. Inorganic electrochromic materials have the advantages of stability and fast response, such as tungsten trioxide, vanadium pentoxide, nickel oxide, and titanium dioxide; organic electrochromic materials are more diverse, offer a richer range of colors, and are easier to design, such as violet and polythiophene.

[0004] Devices made from electrochromic materials are called electrochromic devices. By selecting different electrochromic materials, electrochromic devices with different colors and color-changing ranges can be obtained. Electrochromic devices have very important application prospects in fields such as photochromic glasses, electronic displays, military concealment, and building energy conservation.

[0005] Common electrochromic devices typically consist of a transparent substrate layer, a transparent conductive layer, an electrochromic layer, an electrolyte layer, an ion storage layer, another transparent conductive layer, and a transparent substrate layer stacked sequentially. When a voltage is applied, ions are conducted from the ion storage layer through the electrolyte layer into the electrochromic layer, resulting in a color change; when a reverse voltage is applied, ions are conducted from the electrochromic layer through the electrolyte layer into the ion storage layer, resulting in a color fading.

[0006] In practical applications, electrochromic devices may need to be processed so that certain areas do not change color in order to display specific patterns, such as the manufacturer's logo, or as a transparent area for the display or signal light when used in electrochromic rearview mirrors that include displays / signal lights.

[0007] The common approach in existing technologies is to etch away the material in a specific area of ​​a transparent conductive layer. When a voltage is applied, this area cannot form an electric field and will not change color. However, this method is only suitable for non-closed patterns. If this method is used to process closed patterns, it will cause a break in the connection between the area inside the pattern and the area outside the pattern. The area inside the pattern will also not change color, and the break point cannot be reconciled. Therefore, this problem needs to be solved. Summary of the Invention

[0008] To address the shortcomings of existing technologies, the present invention aims to provide an electrochromic device and an electronic terminal comprising the same. The electrochromic device provided by the present invention can display closed patterns, achieving breakpoint compatibility in display technology.

[0009] To achieve this objective, the present invention adopts the following technical solution:

[0010] In a first aspect, the present invention provides an electrochromic device, the electrochromic device comprising: a first substrate layer, a first transparent conductive layer, a solid-state color-changing layer, a second transparent conductive layer, and a second substrate layer stacked sequentially; the electrochromic device having a color-changing region and a closed non-color-changing region, the non-color-changing region dividing the color-changing region into at least two discontinuous parts; the non-color-changing region comprising: a non-closed first patterned region disposed on the first transparent conductive layer and a non-closed second patterned region disposed on the second transparent conductive layer; wherein, the first patterned region is electrically disconnected from other regions of the first transparent conductive layer except for the first patterned region, and the second patterned region is electrically disconnected from other regions of the second transparent conductive layer except for the second patterned region.

[0011] In this invention, the first / second patterned areas are electrically disconnected, while the areas in the first / second transparent conductive layers other than the first / second patterned areas are electrically connected. When a voltage is applied to the first and second transparent conductive layers, the first / second patterned areas cannot form an electric field, and the areas in the electrochromic layer opposite to the first and second patterned areas cannot change color, forming a closed non-color-changing area. The areas enclosed within the non-color-changing area can change color, thereby enabling the electrochromic device to display a closed pattern and achieving a breakpoint compatibility effect in display technology.

[0012] Preferably, the first graphic area and the second graphic area do not overlap at least partially on the same projection parallel to the electrochromic device.

[0013] In this embodiment, electrical conduction is achieved through non-overlapping regions. For example, the first conductive layer achieves electrical conduction in a region that does not overlap with the second patterned region, and the second conductive layer achieves electrical conduction in a region that does not overlap with the first patterned region. This forms electrical continuity by making other regions conductive.

[0014] Preferably, the electrochromic device further includes at least one of the following features: the closed non-color-changing area refers to the area outside the non-color-changing area being discontinuous; the non-closed first pattern area refers to the area of ​​the first conductive layer outside the first pattern being continuous; the non-closed second pattern area refers to the area of ​​the second conductive layer outside the first pattern being continuous.

[0015] Preferably, the color-changing area includes a discontinuous first color-changing area and a second color-changing area, wherein the second color-changing area is located inside the non-color-changing area.

[0016] Preferably, the first graphic area is hollowed out at least at its outline and / or the second graphic area is hollowed out at least at its outline.

[0017] Preferably, the first graphic area is completely hollowed out and / or the second graphic area is completely hollowed out.

[0018] Preferably, the region of the electrochromic device corresponding to the first pattern area is combined with the region of the electrochromic device corresponding to the second pattern area to form the non-color-changing region.

[0019] Preferably, the electrochromic device further includes a reflective layer disposed on the outside of the first substrate, wherein the area of ​​the reflective layer opposite to the non-color-changing area is hollowed out.

[0020] Furthermore, existing electrochromic rearview mirrors that include displays / signal lights generally employ non-layered electrochromic devices (using liquid or gel-state electrochromic materials sealed between two opposing conductive substrates). When a non-color-changing pattern is etched into a non-layered electrochromic device, because the electrochromic material is in a liquid or gel state, even if no electric field is formed in the etched area of ​​the conductive layer, the surrounding electrochromic material will change color first under the influence of the electric field and then gradually diffuse to the etched area, causing the etched area to also begin to change color. Therefore, the color change in the etched area will be later than that in the non-etched area, resulting in color residue. In contrast, the electrochromic device of this invention has a layered structure, and the electrochromic layer is solid. The electrochromic layer material cannot diffuse, thus eliminating the problem of color residue.

[0021] It should be noted that, in this invention, the closed non-color-changing area refers to an area whose shape is closed, meaning that the area outside the non-color-changing area is discontinuous. The non-closed first pattern area and non-closed second pattern area refer to areas whose shapes are not closed, meaning that the areas in the first and second transparent conductive layers, excluding the pattern areas, are continuous.

[0022] In this invention, "at least the outline is hollowed out" means that a region extending inward from the outline of the first / second graphic area lacks the first / second transparent conductive layer material. This region can be a groove penetrating the first / second transparent conductive layer, filled with adjacent layer material, or filled with other transparent insulating materials (such as transparent polyacrylate adhesive). The purpose of this structure is to electrically disconnect the first / second graphic area from other areas in the first / second transparent conductive layer. As a special case, the first / second graphic area can also be entirely hollowed out.

[0023] In this invention, the shapes of the first and second graphic areas only need to be non-closed, and their normal projection shapes (i.e., the direction perpendicular to the electrochromic device) must be the same as the preset closed non-color-changing area shape. For example, the shapes of the first and second graphic areas can be exactly complementary or partially overlapping. If the shapes of the first and second graphic areas are exactly complementary, errors may cause the presented non-color-changing area shape to deviate from the preset shape. Therefore, in this invention, it is preferable that the shapes of the first and second graphic areas partially overlap.

[0024] In one embodiment of the present invention, the first graphic area is completely hollowed out.

[0025] In one embodiment of the present invention, the second graphic area is completely hollowed out.

[0026] When the electrochromic device of the present invention is used in an electrochromic rearview mirror (such as a blind spot light) that includes a display / signal light, the light transmitted by the display or signal light as a light source needs to pass through the non-color-changing area of ​​the rearview mirror assembly and then be transmitted to the human eye, thus requiring a certain contrast. When the contrast requirement is constant, the higher the transmittance of the non-color-changing area, the lower the required light intensity and the less heat generated by the light emission. Therefore, in the present invention, it is preferable that both the first and second graphic areas are completely hollowed out to improve the transmittance of the non-color-changing area.

[0027] In one embodiment of the present invention, the solid-state color-changing layer includes an ion storage layer, an ion transfer layer and an electrochromic layer stacked sequentially.

[0028] In one embodiment of the present invention, in one or at least two of the first base layer, ion storage layer, ion transfer layer and electrochromic layer, the area opposite to the cutout of the first pattern area is completely or partially cut out, or is completely or partially provided with non-through grooves.

[0029] In one embodiment of the present invention, in one or at least two of the second base layer, ion storage layer, ion transfer layer and electrochromic layer, the area opposite to the cutout of the second pattern area is completely or partially cut out, or is completely or partially provided with non-through grooves.

[0030] In this invention, while ensuring that the first and second patterned areas are electrically disconnected, the structures of the areas in the remaining layers opposite to the cutouts in the first / second patterned areas can be varied. For example, the area can be completely cut out, partially cut out, completely etched with non-through grooves, or partially etched with non-through grooves. The more cutout areas and layers there are, the higher the transmittance of the non-discoloring areas.

[0031] In this invention, there are no special restrictions on the method of forming the above-mentioned hollow structure or non-through groove. For example, a mask can be preset when preparing each layer to form the above-mentioned structure; or after preparing the complete layer, the above-mentioned structure can be formed by laser etching.

[0032] In this invention, there is no special restriction on the order between the operation of forming the above-mentioned hollow structure or non-through groove and the operation of compositing each layer. For example, the above-mentioned structure can be processed on each layer first, and then the layers can be composited, which makes it easier to ensure the integrity of the device structure; or the layers can be composited first, and then the above-mentioned structure can be processed, which can reduce the problems of poor surface cleanliness and rough etching edges caused by processing the above-mentioned structure first.

[0033] In one embodiment of the present invention, the electrochromic device further includes a first substrate disposed outside the first substrate layer and a second substrate disposed outside the second substrate layer.

[0034] In one embodiment of the present invention, the electrochromic device further includes a reflective layer disposed outside the first substrate layer or the second substrate layer;

[0035] The area in the reflective layer opposite to the non-color-changing area is hollowed out.

[0036] When the electrochromic device of the present invention is used in an electrochromic rearview mirror (such as a blind spot light) that includes a display / signal light, the light emitted by the display or signal light is emitted from the hollowed-out area in the reflective layer to realize information transmission, while the non-hollowed-out area in the reflective layer normally reflects the light incident from the environment.

[0037] In one embodiment of the present invention, the electrochromic device further includes a first substrate disposed outside the first substrate layer, and a reflective layer and a second substrate disposed outside the second substrate layer.

[0038] The reflective layer is disposed on the side of the second substrate that is close to or far from the second base layer, and the area in the reflective layer opposite to the non-color-changing area is hollowed out.

[0039] In one embodiment of the present invention, the electrochromic device further includes a second substrate disposed outside the second substrate layer, and a reflective layer and a first substrate disposed outside the first substrate layer;

[0040] The reflective layer is disposed on the side of the first substrate that is close to or far from the first base layer, and the area in the reflective layer opposite to the non-color-changing area is hollowed out.

[0041] In one embodiment of the present invention, the electrochromic device further includes a sealing member disposed around the side of the electrochromic device.

[0042] In one embodiment of the present invention, the width of the non-color-changing area is ≥0.1mm, for example, it can be 0.1mm, 0.2mm, 0.3mm, 0.5mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, 3mm, 4mm, 5mm, or 6mm, etc.; preferably ≥1mm. When the electrochromic device of the present invention is used in an electrochromic rearview mirror (such as a blind spot light) that includes a display / signal light, when the width of the non-color-changing area of ​​the present invention is within the above range, the outline of the graphic area is clear, and the amount of light passing through the display / signal light is sufficient to attract the driver's attention, thereby effectively reminding the driver.

[0043] In a second aspect, the present invention provides an electronic terminal, the electronic terminal including the electrochromic device as described in the first aspect.

[0044] In one embodiment of the present invention, the electronic terminal is electrochromic glass, or an electrochromic rearview mirror including a display / signal light.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] This invention forms a non-closed first pattern area and a non-closed second pattern area on a first transparent conductive layer and a second transparent conductive layer, respectively. The two are combined to form a closed non-color-changing area, which allows the area inside the closed non-color-changing area to be electrically connected with the area outside the non-color-changing area, and can change color simultaneously. This allows the electrochromic device to present a closed pattern, achieving the breakpoint compatibility effect of display technology. Attached Figure Description

[0047] Figure 1 This is a schematic cross-sectional view of the AA side of the electrochromic device provided in Embodiment 1 of the present invention;

[0048] Figure 2 This is a top view of the electrochromic device provided in Embodiment 1 of the present invention.

[0049] Figure 3 This is a schematic diagram of the structure of the first transparent conductive layer of the electrochromic device provided in Embodiment 1 of the present invention;

[0050] Figure 4 This is a schematic diagram of the structure of the second transparent conductive layer of the electrochromic device provided in Embodiment 1 of the present invention;

[0051] Figure 5 This is a cross-sectional structural schematic diagram of the electrochromic device provided in Embodiment 2 of the present invention;

[0052] Figure 6 This is a cross-sectional structural schematic diagram of the electrochromic device provided in Embodiment 3 of the present invention;

[0053] Figure 7 This is a cross-sectional structural schematic diagram of the electrochromic device provided in Embodiment 4 of the present invention;

[0054] Figure 8 This is a cross-sectional structural schematic diagram of the electrochromic device provided in Embodiment 5 of the present invention;

[0055] Figure 9 This is a cross-sectional structural schematic diagram of the electrochromic device provided in Embodiment 6 of the present invention;

[0056] Figure 10 This is a schematic diagram of the structure of the first transparent conductive layer of the electrochromic device provided in Embodiment 7 of the present invention;

[0057] Figure 11 This is a schematic diagram of the structure of the second transparent conductive layer of the electrochromic device provided in Embodiment 7 of the present invention;

[0058] Figure 12 This is a schematic diagram of the structure of the first transparent conductive layer of the electrochromic device provided in Embodiment 8 of the present invention;

[0059] Figure 13 This is a schematic diagram of the structure of the second transparent conductive layer of the electrochromic device provided in Embodiment 8 of the present invention;

[0060] Figure 14 This is a cross-sectional structural schematic diagram of the electrochromic device provided in Embodiment 9 of the present invention;

[0061] Figure 15 This is a cross-sectional structural schematic diagram of the electrochromic device provided in Embodiment 10 of the present invention;

[0062] Figure 16 This is a cross-sectional structural schematic diagram of the electrochromic device provided in Embodiment 11 of the present invention;

[0063] Figure 17 This is a cross-sectional structural schematic diagram of the electrochromic device provided in Embodiment 12 of the present invention;

[0064] Wherein, 1 is the first base layer, 2 is the first transparent conductive layer, 3 is the ion storage layer, 4 is the ion transfer layer, 5 is the electrochromic layer, 6 is the second transparent conductive layer, 7 is the second base layer, 8 is the adhesive layer, 81 is the first adhesive layer, 82 is the second adhesive layer, 9 is the reflective layer, 10 is the first substrate, 11 is the second substrate, and 12 is the sealing element. Detailed Implementation

[0065] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments. Those skilled in the art should understand that the specific embodiments described are merely illustrative of the present invention and should not be construed as limiting the invention.

[0066] Example 1

[0067] This embodiment provides an electrochromic device, the structure of which is as follows: Figure 1 As shown, it includes a first base layer 1, a first transparent conductive layer 2, an ion storage layer 3, an ion transfer layer 4, an electrochromic layer 5, a second transparent conductive layer 6, and a second base layer 7, which are stacked sequentially.

[0068] like Figure 2 As shown, the electrochromic device has a color-changing region (including a first color-changing region and a second color-changing region) and a closed non-color-changing region; wherein the non-color-changing region divides the color-changing region into two discontinuous parts, and therefore the non-color-changing region is said to be closed.

[0069] like Figure 3 As shown, the first transparent conductive layer 2 has a non-closed first patterned area, wherein the area of ​​the first transparent conductive layer 2 other than the first patterned area is continuous, therefore the first patterned area is said to be non-closed. Figure 3 The first graphic area and the area shown by the dashed line correspond to the non-coloring area.

[0070] like Figure 4 As shown, the second transparent conductive layer 6 has a non-closed second patterned area, wherein the area of ​​the second transparent conductive layer 6 other than the second patterned area is continuous, therefore the second patterned area is said to be non-closed. Figure 4 The second graphic area and the area shown by the dashed line correspond to the non-color-changing area.

[0071] The outline of the first graphic area is cut out, and the outline of the second graphic area is cut out;

[0072] The shapes of the first and second patterned areas projected onto the same plane parallel to the electrochromic device are the same as the shape of the non-color-changing area, and the first and second patterned areas are complementary.

[0073] It should be noted that, Figure 3 and Figure 4 The dashed lines shown are not actual boundaries; they are merely used to illustrate the relationship between the shapes of the first graphic area, the second graphic area, and the non-coloring area.

[0074] In this embodiment, the hollow structure at the contours of the first and second patterned areas is formed before the layers of the electrochromic device are composited, which easily ensures the integrity of the device structure. The hollow structure can be formed during the fabrication of each layer using a pre-set mask; or it can be formed using laser etching after the complete layers have been fabricated.

[0075] In this embodiment, since the outlines of the first and second graphic areas are hollowed out, they are disconnected from other areas in the first transparent conductive layer 2 and the second transparent conductive layer 6, respectively. Therefore, the first and second graphic areas are electrically disconnected, and the corresponding areas do not change color. After combination, they form a closed non-color-changing area. The second color-changing area, which is closed inside the non-color-changing area, can be electrically connected to the first color-changing area outside the non-color-changing area, and can change color. Thus, the electrochromic device presents a closed pattern, realizing the breakpoint compatibility effect of display technology.

[0076] Example 2

[0077] This embodiment provides an electrochromic device, the structure of which is as follows: Figure 5 As shown, the only difference from Embodiment 1 is that the first graphic area and the second graphic area are completely hollowed out.

[0078] Compared with Embodiment 1, this embodiment forms a structure in which the first graphic area and the second graphic area are completely hollowed out. While achieving the breakpoint compatibility effect of display technology, it also improves the light transmittance of the non-color-changing area. When the electrochromic device is used in an electrochromic rearview mirror that includes a display / signal light, it helps to reduce the light intensity required by the display or signal light.

[0079] Example 3

[0080] This embodiment provides an electrochromic device, the structure of which is as follows: Figure 6 As shown, the only difference from Embodiment 1 is that the area in the first base layer 1 opposite to the cutout of the first pattern area, and the area in the second base layer 7 opposite to the cutout of the second pattern area are also cut out.

[0081] In this embodiment, the hollow structure in the first base layer 1, the first transparent conductive layer 2, the second transparent conductive layer 6 and the second base layer 7 is formed after the various layers of the electrochromic device are combined. For example, it can be formed by laser etching from the outside of the first base layer 1 and the second base layer 7 respectively.

[0082] Compared with Example 1, this example forms the hollow structure after the layers of the electrochromic device are composited. This not only achieves the breakpoint compatibility effect of the display technology, but also helps to reduce the problems of poor surface cleanliness and rough etching edges caused by forming the hollow structure first and then composited with the layers.

[0083] Example 4

[0084] This embodiment provides an electrochromic device, the structure of which is as follows: Figure 7 As shown, the only difference from Embodiment 2 is that the areas in the first base layer 1 opposite to the first graphic area and the areas in the second base layer 7 opposite to the second graphic area are also completely hollowed out.

[0085] In this embodiment, the hollow structure can be formed before the layers of the electrochromic device are laminated, which makes it easier to ensure the integrity of the device structure; or it can be formed after the layers of the electrochromic device are laminated, which helps to reduce problems such as poor surface cleanliness and rough etching edges caused by forming the hollow structure first and then laminating the layers.

[0086] Compared with Embodiment 2, this embodiment also hollows out the area in the first base layer 1 opposite to the first graphic area and the area in the second base layer 7 opposite to the second graphic area. While achieving the breakpoint compatibility effect of display technology, it further improves the light transmittance of the non-color-changing area. When the electrochromic device is used in an electrochromic rearview mirror containing a display / signal light, it helps to reduce the light intensity required by the display or signal light.

[0087] Example 5

[0088] This embodiment provides an electrochromic device, the structure of which is as follows: Figure 8 As shown, the only difference from Embodiment 1 is that the area opposite to the cutout of the first pattern area in the first base layer 1 is locally etched with non-through grooves, the area opposite to the cutout of the second pattern area in the second base layer 7 is locally etched with non-through grooves, and the area opposite to the cutout of the second pattern area in the electrochromic layer 5 is also cut out.

[0089] In this embodiment, the hollow structure and non-through groove are etched before the layers of the electrochromic device are composited. This not only achieves the breakpoint compatibility effect of the display technology, but also helps to ensure the integrity of the device structure.

[0090] Example 6

[0091] This embodiment provides an electrochromic device, the structure of which is as follows: Figure 9 As shown, the only difference from Embodiment 1 is that the area opposite to the cutout of the first patterned area in the first base layer 1 is cut out, the area opposite to the cutout of the first patterned area and the second patterned area in the ion storage layer 3 is partially cut out, and the areas opposite to the cutout of the second patterned area in the second base layer 7, the electrochromic layer 5 and the ion transfer layer 4 are cut out.

[0092] In this embodiment, the hollow structure is formed after the various layers of the electrochromic device are composited. This not only achieves the breakpoint compatibility effect of the display technology, but also helps to reduce problems such as poor surface cleanliness and rough etching edges caused by forming the hollow structure first and then compositing the various layers.

[0093] In this embodiment of the invention, the structure of the electrochromic device can also be configured such that: in one or at least two of the first substrate layer 1, ion storage layer 3, ion transfer layer 4, and electrochromic layer 5, the area opposite to the cutout of the first patterned area is wholly or partially cut out, or is wholly or partially provided with non-through grooves; in one or at least two of the second substrate layer 7, ion storage layer 3, ion transfer layer 4, and electrochromic layer 5, the area opposite to the cutout of the second patterned area is wholly or partially cut out, or is wholly or partially provided with non-through grooves. Further details are omitted in this embodiment of the invention.

[0094] Example 7

[0095] This embodiment provides an electrochromic device, which differs from Embodiment 1 only in the structure of the first transparent conductive layer 2 and the second transparent conductive layer 6, as detailed below. Figure 10 and Figure 11 As shown, the first patterned area of ​​the first transparent conductive layer 2 and the second patterned area of ​​the second transparent conductive layer 6 partially overlap.

[0096] Compared with Embodiment 1, this embodiment sets a structure in which the first graphic area and the second graphic area partially overlap, which not only achieves the breakpoint compatibility effect of display technology, but also helps to reduce the deviation of the shape after the first graphic area and the second graphic area are combined, and improves fault tolerance.

[0097] Example 8

[0098] This embodiment provides an electrochromic device, which differs from Embodiment 1 only in the structure of the first transparent conductive layer 2 and the second transparent conductive layer 6, as detailed below. Figure 12 and Figure 13 As shown, the first patterned area of ​​the first transparent conductive layer 2 is composed of two unclosed parts, and the second patterned area of ​​the second transparent conductive layer 6 is composed of two unclosed parts that are complementary to the first patterned area. The area after the combination of the first patterned area and the second patterned area corresponds to the non-color-changing area.

[0099] It should be noted that, Figure 12 and Figure 13 The dashed lines shown are not actual boundaries; they are merely used to illustrate the relationship between the shapes of the first graphic area, the second graphic area, and the non-coloring area.

[0100] Example 9

[0101] This embodiment provides an electrochromic device, the structure of which is as follows: Figure 14 As shown, the only difference from Embodiment 1 is that it also includes a reflective layer 9 disposed on the outside of the first base layer 1, and the first base layer 1 and the reflective layer 9 are bonded together by an adhesive layer 8.

[0102] The area in reflective layer 9 opposite to the non-coloring area is hollowed out.

[0103] The electrochromic device provided in this embodiment can be used in electrochromic rearview mirrors (such as blind spot lights) that include displays / signal lights. The light emitted by the display or signal lights is emitted from the hollowed-out area in the reflective layer 9 to realize information transmission, while the non-hollowed-out area in the reflective layer normally reflects the ambient light.

[0104] Example 10

[0105] This embodiment provides an electrochromic device, the structure of which is as follows: Figure 15 As shown, the only difference from Embodiment 4 is that it also includes a reflective layer 9 disposed on the outside of the second base layer 7, and the second base layer 7 and the reflective layer 9 are bonded together by an adhesive layer 8.

[0106] The area in reflective layer 9 opposite to the non-coloring area is hollowed out.

[0107] The electrochromic device provided in this embodiment can be used in electrochromic rearview mirrors (such as blind spot lights) that include displays / signal lights. The light emitted by the display or signal lights is emitted from the hollowed-out area in the reflective layer 9 to realize information transmission, while the non-hollowed-out area in the reflective layer normally reflects the ambient light.

[0108] Example 11

[0109] This embodiment provides an electrochromic device, the structure of which is as follows: Figure 16 As shown, the difference from Example 1 is that:

[0110] It also includes a reflective layer 9 disposed on the outside of the first base layer 1 and a first substrate 10. The reflective layer 9 is disposed on the side of the first substrate 10 close to the first base layer 1, and the first base layer 1 and the reflective layer 9 are bonded together by a first adhesive layer 81.

[0111] It also includes a second substrate 11 disposed outside the second base layer 7, and the second base layer 7 and the second substrate 11 are bonded together by a second adhesive layer 82.

[0112] It also includes a sealing element 12 that surrounds the sides of the electrochromic device;

[0113] Furthermore, the first patterned area, the area in the ion storage layer 3 opposite to the first patterned area, the second patterned area, the area in the electrochromic layer 5 opposite to the second patterned area, and the area in the reflective layer 9 opposite to the non-color-changing area are all hollowed out.

[0114] The electrochromic device provided in this embodiment can be used in electrochromic rearview mirrors (such as blind spot lights) that include displays / signal lights. The light emitted by the display or signal lights is emitted from the hollowed-out area in the reflective layer 9 to realize information transmission, while the non-hollowed-out area in the reflective layer normally reflects the ambient light.

[0115] Example 12

[0116] This embodiment provides an electrochromic device, the structure of which is as follows: Figure 17 As shown, the only difference from Embodiment 11 is that the reflective layer 9 is not present, and the first base layer 1 and the first substrate 10 are bonded together by the first adhesive layer 81.

[0117] The electrochromic device provided in this embodiment can achieve the breakpoint compatibility effect of display technology and can be used in electrochromic glass, where the non-coloring area is used to display patterns such as logos.

[0118] It should be noted that the electrochromic device provided by the present invention may include one or more closed non-color-changing regions. Only one closed non-color-changing region is shown as an example in the embodiments of the present invention. When the electrochromic device includes multiple closed non-color-changing regions, each closed non-color-changing region may independently adopt the structure of any one of the closed non-color-changing regions in the embodiments of the present invention.

[0119] The applicant declares that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention fall within the protection and disclosure scope of the present invention.

Claims

1. An electrochromic device, characterized in that, The electrochromic device comprises: a first substrate layer, a first transparent conductive layer, a solid-state color-changing layer, a second transparent conductive layer, and a second substrate layer, which are stacked sequentially. The electrochromic device has a color-changing region and a closed non-color-changing region, wherein the non-color-changing region divides the color-changing region into two discontinuous parts; The non-discoloring area includes: a non-closed first patterned area disposed on the first transparent conductive layer and a non-closed second patterned area disposed on the second transparent conductive layer; wherein, the first patterned area is electrically disconnected from other areas of the first transparent conductive layer except for the first patterned area, and the second patterned area is electrically disconnected from other areas of the second transparent conductive layer except for the second patterned area. The non-closed first pattern area refers to the area of ​​the first transparent conductive layer other than the first pattern that is continuous; The non-closed second pattern area refers to the area of ​​the second transparent conductive layer other than the second pattern that is continuous; The region corresponding to the first pattern area of ​​the electrochromic device, combined with the region corresponding to the second pattern area of ​​the electrochromic device, forms the non-color-changing region; The color-changing area includes a discontinuous first color-changing area and a second color-changing area, with the second color-changing area located inside the non-color-changing area.

2. The electrochromic device according to claim 1, characterized in that, The first graphic area and the second graphic area do not overlap at least partially on the same projection parallel to the electrochromic device.

3. The electrochromic device according to claim 1, characterized in that, The electrochromic device also includes the following features: The closed, color-unchanging region refers to the area outside the color-unchanging region that is discontinuous.

4. The electrochromic device according to claim 1, characterized in that, The first graphic area is hollowed out at least at its outline and / or the second graphic area is hollowed out at least at its outline.

5. The electrochromic device according to claim 4, characterized in that, The first graphic area is completely hollowed out and / or the second graphic area is completely hollowed out.

6. The electrochromic device according to claim 1, characterized in that, In one or at least two of the first base layer, ion storage layer, ion transfer layer, and electrochromic layer, the area opposite to the cutout of the first patterned area is wholly or partially cut out, or is wholly or partially provided with non-through grooves; and / or, in one or at least two of the second base layer, ion storage layer, ion transfer layer, and electrochromic layer, the area opposite to the cutout of the second patterned area is wholly or partially cut out, or is wholly or partially provided with non-through grooves.

7. The electrochromic device according to claim 1, characterized in that, The electrochromic device further includes a reflective layer disposed on the outside of the first substrate, wherein the area of ​​the reflective layer opposite to the non-color-changing area is hollowed out.

8. An electronic terminal, characterized in that, The electronic terminal includes the electrochromic device as described in any one of claims 1-7.

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