Dimming Glass and Smart Windows

Abstract

The present invention provides a dimming glass and an intelligent vehicle window, belonging to the technical field of display. The dimming glass of the present invention has a transmittance adjustment area and a packaging area; the dimming glass includes: a first substrate and a second substrate disposed opposite to each other, and a dye liquid crystal layer disposed between the first substrate and the second substrate and corresponding to the transmittance adjustment area, and a sealing adhesive corresponding to the packaging area; wherein, the first substrate includes a first base, and a first electrode layer disposed on one side of the first base close to the dye liquid crystal layer; the second substrate includes a second base, and a second electrode layer disposed on one side of the second base close to the dye liquid crystal layer; a conductive structure is disposed in the sealing adhesive; a first voltage transmission structure and a second voltage transmission structure are further disposed on the first base, wherein the first voltage transmission structure is electrically connected to the first electrode layer; the second voltage transmission structure is electrically connected to the second electrode layer through the conductive structure in the sealing adhesive.

Description

Technical Field

[0001] The present invention belongs to the technical field of display windows, and particularly relates to a dimming glass and an intelligent window. Background Art

[0002] At present, dimming glass is increasingly widely used in the fields of architecture and transportation. Existing customers such as automobiles, high-speed trains, and airliners are interested in dye liquid crystal dimming glass. There are products such as PDLC intelligent glass and electrochromic intelligent glass in the existing intelligent glass market. PDLC intelligent glass can only achieve the switching between transparency and haze, without light shielding and heat insulation; electrochromic intelligent glass has problems such as complex film layer processes, slow response time (8 - 20 s), and a blueish color in the dark state. Dye liquid crystal dimming glass utilizes the selective absorption of light by dichroic dye molecules in the liquid crystal to achieve the switching between the bright state and the dark state. Compared with existing PDLC and electrochromic intelligent glass, it has greatly improved optical properties such as black state purity and response time. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art, and provides a dimming glass and an intelligent window.

[0004] In a first aspect, an embodiment of the present invention provides a dimming glass, which has a transmittance adjustment area and a packaging area; the dimming glass includes: a first substrate and a second substrate arranged opposite to each other, and a dye liquid crystal layer disposed between the first substrate and the second substrate and corresponding to the transmittance adjustment area, and a sealing frame adhesive corresponding to the packaging area; wherein, the first substrate includes a first base, and a first electrode layer disposed on one side of the first base close to the dye liquid crystal layer; the second substrate includes a second base, and a second electrode layer disposed on one side of the second base close to the dye liquid crystal layer; a conductive structure is disposed in the sealing frame adhesive; a first voltage transmission structure and a second voltage transmission structure are further disposed on the first base, wherein,

[0005] the first voltage transmission structure is electrically connected to the first electrode layer;

[0006] the second voltage transmission structure is electrically connected to the second electrode layer through the conductive structure in the sealing frame adhesive.

[0007] Optionally, both the first electrode layer and the second electrode layer are planar electrodes.

[0008] Optionally, the first voltage transmission structure and the first electrode are of an integral structure.

[0009] Optionally, the first electrode layer includes a plurality of strip-shaped electrodes; the second electrode layer includes a planar electrode.

[0010] Optionally, the first voltage transmission structure includes a plurality of first pads and a plurality of second pads; wherein,

[0011] The first end of the first pad is connected to the strip-shaped electrode, and different first pads are connected to different strip-shaped electrodes;

[0012] The second end of the first pad is electrically connected to the first end of the corresponding second pad through a fan-out trace, and different first pads are connected to different second pads.

[0013] Optionally, both the first pad and the second pad are arranged on the same layer as the second voltage transmission structure and have the same material.

[0014] Optionally, a transition layer is provided at the second end of the second pad.

[0015] Optionally, the transition layer is arranged on the same layer as the strip-shaped electrode and has the same material.

[0016] Optionally, the second voltage transmission structure includes: a first sub-transmission structure and a second sub-transmission structure; wherein,

[0017] The first sub-transmission structure and the first voltage transmission structure are located on the same side of the encapsulation area;

[0018] The second sub-transmission structure is located on the remaining sides of the encapsulation area except the side where the first sub-transmission structure is provided, and the first sub-transmission structure is electrically connected to the second sub-transmission structure.

[0019] Optionally, the orthographic projection of the second electrode layer on the first substrate covers the orthographic projection of the first sub-transmission structure on the first substrate.

[0020] In a second aspect, an embodiment of the present invention provides an intelligent window, which includes the above-mentioned dimming glass. Description of the Drawings

[0021] Figure 1 It is a schematic diagram when the dimming glass is in the bright state;

[0022] Figure 2 It is a schematic diagram when the dimming glass is in the dark state;

[0023] Figure 3 It is a top view of the first substrate of a dimming glass according to an embodiment of the present invention;

[0024] Figure 4 For Figure 3 The top view of the second voltage transmission structure on the first substrate shown;

[0025] Figure 5 For Figure 3Top view of the first electrode layer and the first voltage transmission structure on the first substrate shown;

[0026] Figure 6 is Figure 3 Top view of the interlayer insulating layer on the first substrate shown;

[0027] Figure 7 Top view of the first substrate of another dimming glass according to an embodiment of the present invention;

[0028] Figure 8 is Figure 7 Top view of the first voltage transmission structure and the second voltage transmission structure on the first substrate shown;

[0029] Figure 9 is Figure 7 Top view of the first electrode layer on the first substrate shown;

[0030] Figure 10 is Figure 7 Top view of the interlayer insulating layer on the first substrate shown;

[0031] Figure 11 Top view of the second substrate of the dimming glass according to an embodiment of the present invention. Detailed implementation manners

[0032] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0033] Unless otherwise defined, the technical terms or scientific terms used in this disclosure shall have the ordinary meanings understood by those of ordinary skill in the art to which this disclosure belongs. The "first", "second" and similar terms used in this disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a", "an" or "the" do not denote a quantity limitation, but mean that there is at least one. The terms such as "include" or "comprise" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connect" or "couple" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0034] It should be noted here that in the embodiments of the present invention, when it is said that a certain layer structure is located on a certain layer, it does not mean that a certain layer is above that layer macroscopically, but refers to the sequence of preparation, that is, the later formed film layer is on the earlier formed film layer.

[0035] As Figure 1 and 2 shown, an exemplary dimming glass is given, which includes a first substrate and a second substrate arranged opposite to each other, and a dye liquid crystal layer 30 provided between the first substrate and the second substrate; wherein, the first substrate includes a first base 10, a first electrode layer 11 and a first alignment layer 12 sequentially arranged on one side of the first base 10 close to the liquid crystal layer; the second substrate includes: a second base 20, a second electrode layer 21 and a second alignment layer 22 sequentially arranged on one side of the second base 20 close to the liquid crystal layer; the material of the liquid crystal layer 30 includes liquid crystal molecules and dichroic dye molecules. According to the dichroic characteristics of the dichroic dye molecules, only the light parallel to the long axis of the dye molecules in the incident light can be absorbed.

[0036] Specifically, in the embodiments of the present invention, taking the first electrode layer 11 and the second electrode layer 21 both being plate-shaped electrode layers as an example for illustration, at this time the dimming glass is a TN-type liquid crystal cell, that is, the display mode is the normally white mode. When no voltage is applied to the first electrode layer 11 and the second electrode layer 21, the dimming glass is in the bright state, as Figure 1 shown; when a voltage is applied to the first electrode layer 11 and the second electrode layer 21, the dimming glass is in the dark state, as Figure 2 shown.

[0037] In the prior art, there are mainly two ways to apply voltage to the first electrode layer 11 and the second electrode layer 21 of the dimming glass. One is to set pads in the peripheral areas of the first base 10 and the second base 20, expose the pads, and then weld leads to the pads respectively. In this way, since the areas where the pads are set in the peripheral areas of the first base and the second base will inevitably increase the size of the dimming glass; the other is to set pads at half of the peripheral area of the first base 10 and cut off the other half of the peripheral area; set pads at the positions corresponding to the cut-off positions of the first base 10 in the peripheral area of the second base 20 and cut off the other half of the peripheral area, and then weld leads to the pads respectively. In this way, although the size of the dimming glass can be reduced compared with the previous method, a cutting process needs to be added at this time. To solve this problem, a dimming glass is provided in the following embodiments of the present invention.

[0038] In the first aspect, as Figure 3 and 11As shown in the figure, an embodiment of the present invention provides a dimming glass, which has a packaging area and a transmittance adjustment area defined by the packaging area; the dimming glass includes: a first substrate and a second substrate disposed opposite to each other, and a dye liquid crystal layer 30 disposed between the first substrate and the second substrate and corresponding to the transmittance adjustment area, and a sealing adhesive 16 corresponding to the packaging area; wherein, the first substrate includes: a first substrate 10, and a first electrode layer 11 disposed on the first substrate 10 near the dye liquid crystal layer; the second substrate includes: a second substrate 20, and a second electrode layer 21 disposed on the second substrate 20 near the dye liquid crystal layer. Particularly, a conductive structure is provided in the sealing adhesive 16; a first voltage transmission structure 14 and a second electrode transmission structure are further provided on the first substrate 10; the first voltage transmission structure 14 is connected to the first electrode layer 11; the second electrode transmission structure is electrically connected to the second electrode layer 21 through the conductive structure in the sealing adhesive 16. In this way, a voltage can be applied to the first electrode layer 11 through the first voltage transmission structure 14, and a voltage can be applied to the second electrode layer 21 through the second voltage transmission structure, so that the liquid crystal molecules and dye molecules in the dye liquid crystal layer sandwiched between the first electrode layer 11 and the second electrode layer 21 are deflected, so as to adjust the transmittance of the light irradiated on the dimming glass.

[0039] Here, it should be noted that the conductive structure in the sealing adhesive 16 includes, but is not limited to, conductive gold balls formed in the sealing adhesive 16 in a doped form. Conductive gold balls can be doped at various positions of the sealing adhesive 16, or only at the positions corresponding to the second voltage transmission structure 13; it should be understood that in order to avoid electrical connection between the first electrode layer 11 and the second electrode layer 21, the sealing adhesive 16 is insulated from the first electrode layer 11.

[0040] In one example, as Figure 3 shown, the dimming glass includes: a first substrate and a second substrate disposed opposite to each other, and a dye liquid crystal layer and a sealing adhesive 16 disposed between the first substrate and the second substrate; wherein, the first substrate includes a first substrate 10, a second voltage transmission structure 13 disposed on the side of the first substrate 10 away from the dye liquid crystal layer in sequence, a first electrode layer 11 and a first voltage transmission structure 14 disposed on the same layer, and an interlayer insulating layer 15. The second substrate includes a second substrate 20, and a second electrode layer 21 disposed on the second substrate 20 near the dye liquid crystal layer. Among them, both the first electrode layer 11 and the second electrode layer 21 include planar electrodes. The sealing adhesive 16 is disposed in the packaging area, specifically, it can be disposed on the first substrate 10, or can be disposed on the second substrate 20. In this embodiment, taking the sealing adhesive 16 being located on the first substrate 10 as an example, at this time, the second voltage transmission structure 13 is at least in contact with the position of the sealing adhesive 16 having the conductive structure.

[0041] In some embodiments, the first voltage transmission structure 14 and the first electrode layer 11 are of an integral structure, that is, asFigure 1 As shown, the first voltage transmission structure 14 is integrally formed with the first electrode layer 11. In this way, the first voltage transmission structure 14 and the first electrode layer 11 can be formed through a single lithography process. Among them, the material of the first electrode layer 11 includes but is not limited to indium tin oxide (ITO).

[0042] Among them, in order to enhance the conductivity of the second voltage transmission structure 13, it can adopt a metal conductive material, such as copper (Cu). In some embodiments, since the second electrode layer 21 is a planar electrode, in order to ensure uniform voltage applied to the second electrode layer 21, at this time, the second voltage transmission structure 13 can be designed as a structure composed of a first sub-transmission structure and a second sub-transmission structure; among them, the first sub-transmission structure and the first voltage transmission structure 14 are located on the same side of the encapsulation area; the second sub-transmission structure is located on the remaining sides of the encapsulation area except for the side where the first sub-transmission structure is provided, that is, the second sub-transmission structure is in the Figure 4 U-shaped structure shown in, and the first sub-transmission structure is electrically connected to the second sub-transmission structure. The interlayer insulating layer 15 is hollowed out at the positions where the first sub-transmission structure and the second sub-transmission structure are located, exposing the first sub-transmission structure and the second sub-transmission structure, and the sealant 16 is provided in the encapsulation area to cover the first sub-transmission structure and the second sub-transmission structure. In this way, after the second substrate and the first substrate are aligned, the second electrode layer 21 can be electrically connected to the first sub-transmission structure and the second sub-transmission structure through the conductive structure in the sealant 16.

[0043] For the above-mentioned dimming glass, the embodiments of the present invention provide a preparation method for the dimming glass. For the convenience of description, the dimming glass is taken as a rectangular glass as an example for illustration. At this time, the encapsulation area is a rectangular closed-loop structure, which has a first side and a second side arranged oppositely ( Figure 3 opposite in the left-right direction in), and a third side and a fourth side arranged oppositely ( Figure 3 opposite in the up-down direction in). The method includes the steps of forming a first substrate, a second substrate, and a dye liquid crystal layer filled between the first substrate and the second substrate.

[0044] Among them, forming the first substrate includes the following steps:

[0045] Step 1. As Figure 4As shown, a second voltage transmission structure 13 is formed on the first substrate 10 by a patterning process; wherein the second voltage transmission structure 13 includes a first sub-transmission structure and a second sub-transmission structure; the first sub-transmission structure is located at the fourth side of the packaging area, and the second sub-transmission structure is a U-shaped structure, located at the first side, the second side and the third side of the packaging area; one end of the first sub-transmission structure is a block structure, and the other end forms an integral structure with the second sub-transmission structure. The first sub-transmission structure is strip-shaped except for the block structure, and the second sub-transmission structure is strip-shaped, and its width is about 2mm; the block structure of the first sub-transmission structure is used for welding with external leads, and its size can be set according to the size of the dimming glass.

[0046] Step 2: Figure 5 As shown, a pattern including a first electrode layer 11 and a first voltage transmission structure 14 is formed by a single patterning process. The first electrode layer 11 is located in the transmittance adjustment area; the first voltage transmission structure 14 is a block structure, which is an integrated structure with the first electrode layer 11, and extends from the transmittance adjustment area to the fourth side of the packaging area away from the transmittance adjustment area. The materials of the first electrode layer 11 and the first voltage transmission structure 14 include but are not limited to ITO; the width of the first voltage transmission structure 14 is about 15 mm.

[0047] Step three, such as Figure 6 As shown, an interlayer insulating layer 15 is formed above the first electrode layer 11 and the first voltage transmission structure 14, wherein the interlayer insulating layer 15 covers the first electrode layer 11 and the first voltage transmission structure 14 and exposes the second voltage transmission structure 13. There is a certain distance between the edge of the interlayer insulating layer 15 and the packaging area, which is about 200 μm.

[0048] Step 4: Figure 3 As shown, a frame sealant 16 is formed in the packaging area, wherein the frame sealant 16 is doped with conductive gold balls. The width of the frame sealant 16 can be determined according to the size of the dimming glass. For a 5-inch dimming glass, the width of the frame sealant 16 is 2 to 2.6 mm. For a larger-sized dimming glass, considering the risk of puncture of the frame sealant 16, the width of the frame sealant 16 can be designed to be 3 to 5 mm.

[0049] The preparation of the first substrate is now completed.

[0050] Wherein, forming the second substrate comprises the following steps:

[0051] Step 1: Figure 11As shown in the figure, a pattern including a second electrode layer 21 is formed on a second substrate 20 through a patterning process. Among them, the second electrode layer 21 covers the transmittance adjustment area and the encapsulation area, and at least part of the bulk structure of the first voltage transmission structure 14 and the second voltage transmission structure 13 is exposed in the orthographic projection on the first substrate 10, so as to weld leads to the bulk structures of the first voltage transmission structure 14 and the second voltage transmission structure 13, so as to apply an external voltage to the first electrode layer 11 and the second electrode layer 21. The material of the second electrode layer includes but is not limited to ITO.

[0052] It should be noted here that an insulating layer can be formed on the second substrate 20 before forming the second electrode layer 21 to avoid damaging the second substrate 20 when forming the second electrode layer 21. The sealing glue 16 can also be formed on the second substrate. Thus, the preparation of the second substrate is completed.

[0053] In another example, as Figure 7 shown, the structure of this dimming glass is similar to the above dimming glass, the difference being that the first electrode layer 11 includes a plurality of strip electrodes. In this way, different voltages are applied to each strip electrode, so that the deflection angles of the liquid crystal molecules in the dye liquid crystal layer corresponding to different positions of the dimming glass are different, thereby realizing the shutter function. Since the first electrode layer 11 includes a plurality of strip electrodes, at this time, the first voltage transmission structure 14 includes a plurality of first pads 141 and a plurality of second pads 142 arranged in one-to-one correspondence with the strip electrodes; among them, the plurality of first pads 141 are arranged side by side, and the first end of each first pad 141 is connected to the corresponding strip electrode, and the second end of the first pad 141 is connected to the first end of the corresponding second pad 142 through a fan-out trace 143 located in the fanout area, and the second end of the second pad 142 is used to be bonded to the chip IC to provide voltage for the strip electrodes. The second voltage transmission structure 13 can adopt the same structure as above. Of course, the first transmission structure of the second voltage transmission structure 13 can also adopt a third pad arranged side by side with the second pad 142. At this time, the third pad is connected to the second sub-transmission structure through the fan-out trace 143.

[0054] In some embodiments, the first voltage transmission structure 14 and the second voltage transmission structure 13 are arranged on the same layer and have the same material; that is to say, the first pads 141, the second pads 142 in the first voltage transmission structure 14 and the first sub-transmission structure and the second sub-transmission structure in the second voltage transmission structure 13 are prepared by a single patterning process, and the material includes but is not limited to conductive metal.

[0055] In some embodiments, a transition layer is further provided on the second end of the second pad 142 for better bonding of the second pad 142 to the IC. The material of the transition layer includes, but is not limited to, ITO. Preferably, the transition layer can be provided on the same layer as the strip electrodes, that is, prepared by a single lithography process.

[0056] For the above-mentioned dimming glass, an embodiment of the present invention provides a method for preparing the dimming glass. For the sake of description, a rectangular glass is taken as an example of the dimming glass for illustration. At this time, the encapsulation area is a rectangular closed-loop structure, which has a first side and a second side arranged oppositely ( Figure 7 opposite in the left-right direction), and a third side and a fourth side arranged oppositely ( Figure 7 opposite in the up-down direction). The method includes the steps of forming a first substrate, a second substrate, and a dye-liquid crystal layer filled between the first substrate and the second substrate. Among them, the formation of the second substrate and the dye-liquid crystal layer is the same as the above steps and will not be repeated here.

[0057] Among them, forming the first substrate includes the following steps:

[0058] Step 1: As Figure 8 shown, a first voltage transmission structure 14 and a second voltage transmission structure 13 are formed on the first substrate 10 through a lithography process; the first voltage transmission structure 14 includes a plurality of first pads 141 arranged side by side and a plurality of second pads 142 arranged side by side; the first pads 141 and the second pads 142 are arranged in one-to-one correspondence, and the second end of the first pad 141 is connected to the first end of the second pad 142 through a fan-out trace 143; the second voltage transmission structure 13 includes a first sub-transmission structure and a second sub-transmission structure; the first sub-transmission structure is located on the fourth side of the encapsulation area, and the second sub-transmission structure is in a U-shaped structure and is located on the first side, the second side, and the third side of the encapsulation area; the first sub-transmission structure includes third pads arranged side by side with the second, and the first end of the third pad is connected to the second sub-transmission structure through a fan-out trace 143.

[0059] Step 2: As Figure 9 shown, a first electrode layer 11 including a plurality of strip electrodes is formed in the transmittance adjustment area through a lithography process; the strip electrodes are arranged in one-to-one correspondence with the first pads 141 and are connected to the first ends of the first pads 141. Among them, the materials of the first electrode layer 11 and the first voltage transmission structure 14 include, but are not limited to, ITO; the width of the first voltage transmission structure 14 is about 15 mm. Further, a transition layer is formed at the second end of the second pad 142 while forming the strip electrodes in this step, and the size of the transition layer is about 800 μm × 500 μm.

[0060] Step 3, as Figure 10As shown, an interlayer insulating layer 15 is formed above the layer where the first electrode layer 11 is located. Among them, the interlayer insulating layer 15 covers the first electrode layer 11 and the first voltage transmission structure 14, and exposes the second voltage transmission structure 13. There is a certain distance between the edge of the interlayer insulating layer 15 and the encapsulation area, which is about 200 μm.

[0061] Step four, as Figure 11 shown, a sealing frame adhesive 16 is formed in the encapsulation area. Among them, the sealing frame adhesive 16 is doped with conductive gold balls.

[0062] Thus, the preparation of the first substrate is completed.

[0063] In a second aspect, an embodiment of the present invention provides a smart window, which includes the above-mentioned dimming glass.

[0064] Among them, the smart window can be applied to airplanes, buildings, etc.

[0065] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present invention. However, the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

1. A dimming glass, having a transmittance adjustment area and a packaging area; the dimming glass comprises: A first substrate and a second substrate which are oppositely arranged, a dye liquid crystal layer disposed between the first substrate and the second substrate and corresponding to the transmittance adjustment region, and a sealant corresponding to the encapsulation region; wherein, the first substrate includes a first base, and a first electrode layer disposed on a side of the first base close to the dye liquid crystal layer; the second substrate includes a second base, and a second electrode layer disposed on a side of the second base close to the dye liquid crystal layer; characterized in that, a conductive structure is disposed in the sealant; a first voltage transmission structure and a second voltage transmission structure are further disposed on the first base, wherein, the first voltage transmission structure is electrically connected to the first electrode layer; the second voltage transmission structure is electrically connected to the second electrode layer through the conductive structure in the sealant; wherein, the first substrate further includes an interlayer insulating layer disposed on a side of the first electrode layer and the layer where the first voltage transmission structure is located close to the dye liquid crystal layer, and the interlayer insulating layer covers the first electrode layer and the first voltage transmission structure; the first electrode layer includes a plurality of strip electrodes, and the interlayer insulating layer covers the plurality of strip electrodes; the encapsulation region is a rectangular closed-loop structure, which has a first side and a second side arranged oppositely, and a third side and a fourth side arranged oppositely; a side of the interlayer insulating layer opposite to the fourth side of the encapsulation region is located outside the encapsulation region; the first voltage transmission structure includes: a plurality of first pads and a plurality of second pads; wherein, a first end of the first pad is connected to the strip electrode, and different first pads are connected to different strip electrodes; a second end of the first pad is electrically connected to a first end of the corresponding second pad through a fan-out trace, and different first pads are connected to different second pads; the second voltage transmission structure includes: a first sub-transmission structure and a second sub-transmission structure; wherein, the first sub-transmission structure and the first voltage transmission structure are located on the same side of the encapsulation region; the second sub-transmission structure is located on the remaining sides of the encapsulation region except the side where the first sub-transmission structure is disposed, and the first sub-transmission structure is electrically connected to the second sub-transmission structure; the first sub-transmission structure is a third pad, and the third pad is arranged side by side with the second pad.

2. The dimming glass according to claim 1, characterized in that, The second electrode layer is a planar electrode.

3. The dimming glass according to claim 2, wherein, The first voltage transmission structure and the first electrode are of an integral structure.

4. The dimming glass according to claim 1, wherein The first pad and the second pad are both disposed on the same layer as the second voltage transmission structure and have the same material.

5. The dimming glass according to claim 1, wherein A transition layer is disposed at a second end of the second pad.

6. The dimming glass according to claim 5, wherein, The transition layer is disposed on the same layer as the strip electrode and has the same material.

7. The dimming glass according to claim 1, wherein A positive projection of the second electrode layer on the first base covers a positive projection of the first sub-transmission structure on the first base.

8. An intelligent window, characterized in that, The dimming glass according to any one of claims 1-7 is included.

Images