Functional element with regionally electrically controllable optical properties and composite glass

Abstract

The application provides a functional element with regionally electrically controllable optical performance and composite glass, and the functional element comprises at least one first transparent substrate and at least one second transparent substrate, a first planar electrode and a second planar electrode, the first planar electrode and the second planar electrode are located between the first transparent substrate and the second transparent substrate, the first planar electrode and the second planar electrode each have at least one bus bar, and a light-adjusting functional layer is located between the first planar electrode and the second planar electrode. The functional element has a plurality of cutting surfaces, so that the bus bar on the first planar electrode and the bus bar on the second planar electrode are exposed. The functional element provided by the application can greatly simplify the manufacturing complexity of the functional element with regionally electrically controllable optical performance, and reduce the pressure drop between different functional regions, so as to ensure that the optical properties of each independent functional region are consistent.

Description

Technical Field

[0001] This invention relates to the field of special glass products technology, specifically to a functional element and composite glass with regionally controllable optical properties. Background Technology

[0002] See Figure 1 The patent with publication number CN114072281A discloses a functional element with electro-controllable optical performance, wherein the arrangement of synchronous cutting line 16, bus 18 and 19 can realize individual control of different areas.

[0003] In existing technologies, the direction of the synchronization cutting line is roughly parallel or parallel to the direction of the busbar, resulting in a narrow area between the busbar and the individual control area, such as... Figure 1 The resistance of the intermediate region between different cutting lines is much greater than that of the functional zones. Furthermore, within the functional zones, the resistance increases with distance from the busbar, resulting in a significant voltage drop at the same voltage. To ensure consistent optical characteristics across different functional zones, the resistance of the planar electrodes needs to be reduced (leading to increased costs) or the operating voltage increased (increasing operational risks). Additionally, the cutting line path used to achieve partitioning, consisting of at least one vertical and one horizontal section, increases manufacturing complexity. Summary of the Invention

[0004] To address the problems in the prior art, the functional element with regionally controllable optical performance provided by the present invention greatly simplifies the manufacturing complexity of the regionally controllable optical functional element, reduces the voltage drop between different functional regions, and ensures the consistency of optical properties of each independent functional region.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] This invention provides a functional element with sectionally controllable optical performance, comprising:

[0007] At least one first transparent substrate and at least one second transparent substrate;

[0008] A first planar electrode and a second planar electrode are located between a first transparent substrate and a second transparent substrate; each of the first planar electrode and the second planar electrode has at least one busbar.

[0009] A dimming function layer is located between the first planar electrode and the second planar electrode;

[0010] The functional element has multiple cut surfaces to expose the busbars on the first planar electrode and the busbars on the second planar electrode.

[0011] The second planar electrode has partition cutting lines that divide the second planar electrode into independent segments along a direction perpendicular to the busbars on the second planar electrode. The number of independent segments corresponds to the number of busbars on the second planar electrode.

[0012] In some embodiments of this application, at least a portion of the bus on the second planar electrode and the bus on the first planar electrode are located on the same side of the functional element.

[0013] In some embodiments of this application, the busbar on the first planar electrode is zigzag-shaped and located on one side of the busbar on the second planar electrode, as well as the adjacent side of that side.

[0014] In some embodiments of this application, the cross-sectional area of ​​the functional element is not less than 0.5m². 2 The bus length on the first planar electrode is not less than 300 mm and not greater than half the perimeter of the cross-section of the functional element.

[0015] In some embodiments of this application, the bus on the second planar electrode and the bus on the first planar electrode are located on the same side of the functional element.

[0016] In some embodiments of this application, the cross-sectional area of ​​the functional element is less than 0.5m². 2 And the bus length on the first planar electrode is not less than 100mm.

[0017] In some embodiments of this application, the bus on the first planar electrode is located on the adjacent side of one side of the bus on the second planar electrode in the functional element.

[0018] In some embodiments of this application, the cross-sectional area of ​​the functional element is not less than 0.5m². 2 The bus length on the first planar electrode is not less than 300 mm and not greater than half the perimeter of the maximum cross-section of the functional element.

[0019] In some embodiments of this application, the plurality of cutting surfaces includes: a first cutting surface, a second cutting surface, a third cutting surface, and a fourth cutting surface, wherein:

[0020] The first cutting surface cuts the first transparent substrate, the first planar electrode, and the dimming functional layer along a direction perpendicular to the busbar on the second planar electrode.

[0021] The second cutting surface cuts the first transparent substrate, the first planar electrode, and the dimming functional layer along a direction parallel to the busbar on the second planar electrode.

[0022] The third cutting surface cuts the second transparent substrate, the second planar electrode, and the dimming functional layer along a direction perpendicular to the busbar on the first planar electrode.

[0023] The fourth cutting surface cuts the second transparent substrate, the second planar electrode, and the dimming functional layer along a direction parallel to the busbar on the second planar electrode.

[0024] In some embodiments of this application, the plurality of cutting surfaces further includes: a fifth cutting surface; the fifth cutting surface cuts the second transparent substrate, the second planar electrode, and the dimming functional layer along a direction perpendicular to the busbar on the first planar electrode; and the fifth cutting surface intersects with the fourth cutting surface.

[0025] In some embodiments of this application, the ratio of the length of the relatively shorter bus to the length of the relatively longer bus on the second planar electrode and the bus on the first planar electrode is not less than 0.5.

[0026] In some embodiments of this application, the minimum distance between the busbar on the first planar electrode and the busbar on the second planar electrode on the horizontal projection plane is not less than 5 mm.

[0027] In some embodiments of this application, the functional elements whose optical performance can be regionally controlled also include:

[0028] The conductor has leads that correspond to the busbars on the first planar electrode and the busbars on the second planar electrode.

[0029] In some embodiments of this application, the number of leads is not less than the sum of the number of buses on the first planar electrode and the number of buses on the second planar electrode.

[0030] In some embodiments of this application, the dimming functional layer includes any one or more combinations of PDLC dimming film, EC dimming film, SPD dimming film and LV dimming film.

[0031] Secondly, the present invention also provides a composite glass comprising a functional element with regionally controllable optical properties as described above, for installation on at least one of a sunroof, side window, windshield, and rear window of a vehicle, and as interior or exterior glass in a building, for sun protection or privacy protection.

[0032] As described above, the present invention provides a functional element and composite glass with regionally controllable optical performance. The functional element includes: at least one first transparent substrate and at least one second transparent substrate; a first planar electrode and a second planar electrode, the first planar electrode and the second planar electrode being located between the first transparent substrate and the second transparent substrate; each of the first planar electrode and the second planar electrode having at least one busbar; a dimming functional layer located between the first planar electrode and the second planar electrode; the functional element having multiple cut surfaces to expose the busbars on the first planar electrode and the second planar electrode; the second planar electrode having partition cutting lines, the partition cutting lines cutting the second planar electrode into independent segments along a direction perpendicular to the busbars on the second planar electrode, the number of independent segments corresponding to the number of busbars on the second planar electrode.

[0033] The optical performance controllable functional element provided by this invention greatly simplifies the manufacturing complexity of the partitioned electronically controllable optical functional element, reduces the voltage drop between different partitioned functional areas, and ensures the consistency of optical properties of each independent functional area. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of a functional element whose optical performance can be regionally electrically controlled in the prior art;

[0036] Figure 2 This is a schematic diagram of a functional element whose optical performance can be regionally electrically controlled in an embodiment of the present invention;

[0037] Figure 3 for Figure 2 A top view of the functional components in the region that can be controlled by electronic means for optical performance;

[0038] Figure 4 This is another structural schematic diagram of the functional element whose optical performance can be regionally electrically controlled in an embodiment of the present invention;

[0039] Figure 5 for Figure 3 A side view of the functional components whose optical performance can be controlled by the region;

[0040] Figure 6This is a schematic diagram showing the position of the conductor in an embodiment of the present invention;

[0041] Figure 7 This is another structural schematic diagram of the functional element whose optical performance can be regionally electrically controlled in an embodiment of the present invention;

[0042] Figure 8 for Figure 7 A top view of the functional components in the region that can be controlled by electronic means for optical performance;

[0043] Figure 9 for Figure 8 A side view of the functional components whose optical performance can be controlled by the region;

[0044] Figure 10 for Figure 4 A top view of the functional components in the region that can be controlled by electronic means for optical performance;

[0045] Figure 11 for Figure 10 A side view of the optical performance of the functional components that can be controlled by the electronic system in the region;

[0046] Figure 12 for Figure 10 The optical performance of the functional elements in the region can be viewed from the other side (with) Figure 11 (The side view direction is relative).

[0047] Figure 13 This is a schematic diagram of a conductor structure in an embodiment of the present invention;

[0048] Figure 14 for Figure 6 An enlarged diagram showing the position of the circle in the image;

[0049] Icon labels:

[0050] 1. First transparent substrate;

[0051] 2. Second transparent substrate;

[0052] 3. First planar electrode;

[0053] 4. Second planar electrode;

[0054] 5 buses;

[0055] 6 dimming function layers;

[0056] Cutting surfaces 7, 8, 9, 10, and 12;

[0057] 11-section cutting line;

[0058] 13. Extrusion bodies;

[0059] 14 conductors;

[0060] 15 protective layers;

[0061] 16 External welded parts. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0063] See Figure 2 First, embodiments of the present invention provide a functional element with regionally controllable optical performance, comprising:

[0064] At least one first transparent substrate 1 and at least one second transparent substrate 2;

[0065] A first planar electrode 3 and a second planar electrode 4 are located between the first transparent substrate 1 and the second transparent substrate 2; each of the first planar electrode 3 and the second planar electrode 4 has at least one busbar 5.

[0066] The dimming function layer 6 is located between the first planar electrode 3 and the second planar electrode 4;

[0067] The functional element has multiple cut surfaces (7, 8, 9, 10) to expose the busbar 5 on the first planar electrode 3 and the busbar 5 on the second planar electrode 4.

[0068] The second planar electrode 4 has a partition cutting line 11, which cuts the second planar electrode 4 into independent segments along a direction perpendicular to the busbars 5 on the second planar electrode 4. The number of independent segments corresponds to the number of busbars 5 on the second planar electrode 4 (i.e., each independent segment divided by the partition cutting line 11 corresponds to one busbar 5).

[0069] Compared to the functional elements with electro-optical performance control in the prior art, the functional elements with regionally controllable optical performance provided in this application embodiment achieve individual regional control through the setting of cutting lines and busbars, which greatly simplifies the manufacturing complexity of the regionally controllable optical functional elements, reduces the voltage drop between different regional functional areas, and ensures the consistency of optical properties of each independent functional area.

[0070] See Figure 2 In some embodiments of this application, at least a portion of the busbar 5 on the second planar electrode 4 and the busbar 5 on the first planar electrode 3 are located on the same side of the functional element. That is, this includes embodiments where the busbar 5 on the first planar electrode 3 is zigzag-shaped (the zigzag line is simultaneously located on one side of the busbar 5 on the second planar electrode 4 and on the adjacent side of that side). Figure 2 (Not shown in the figure) and the case of being a line segment (only located on one side of the busbar 5 on the second planar electrode 4).

[0071] All or part of the busbar 5 on the first planar electrode 3 and the busbar 5 on the second planar electrode 4 are located on one side of a functional element whose optical performance can be regionally controlled. The main purpose is to facilitate the design and manufacturing cost and composite processing difficulty of subsequent flat conductors.

[0072] See also Figure 2 In some embodiments of this application, the bus 5 on the first planar electrode 3 and the bus 5 on the second planar electrode 4 are isolated by the dimming functional layer 6.

[0073] The busbars 5 of the first planar electrode 3 and the second planar electrode 4 are not directly adjacent. They are separated by the dimming functional layer 6. Since the busbars 5 of the first planar electrode 3 and the second planar electrode 4 are on different planar electrode surfaces, they need to be processed separately from different transparent substrates during processing to form corresponding substrate cutting surfaces. If the spacing is too close, it may cause the two electrodes to be too close to short circuit during transparent substrate cutting, or high voltage burn-through, or mutual interference during processing, damaging the corresponding busbars.

[0074] In some embodiments of this application, the busbar 5 on the first planar electrode 3 is in the shape of a broken line (the broken line is located on one side of the busbar 5 on the second planar electrode 4 and on the adjacent side of that side), and is located on one side of the busbar 5 on the second planar electrode 4 and on the adjacent side of that side.

[0075] In some embodiments of this application, when the busbar 5 on the first planar electrode 3 is zigzag-shaped and located on one side of the busbar 5 on the second planar electrode 4, and on the adjacent side thereto: the cross-sectional area of ​​the functional element is not less than 0.5m². 2 The length of the busbar 5 on the first planar electrode 3 is not less than 300 mm and not greater than half the perimeter of the cross-section of the functional element.

[0076] In some embodiments of this application, the busbar 5 on the first planar electrode 3 is located on one side of the busbar 5 on the second planar electrode 4 in the optically regionally controllable functional element, and on the adjacent side of that side; and the cross-sectional area of ​​the optically regionally controllable functional element is not less than 0.5m². 2 The length of the busbar 5 on the first planar electrode 3 is not less than 300 mm, and the length is not greater than half the maximum cross-sectional perimeter of the functional element whose optical performance can be regionally controlled.

[0077] In this embodiment, the busbar 5 on the first planar electrode 3 is zigzag-shaped, with one side of the zigzag line located on the same side as the busbar 5 on the second planar electrode 4, and the other side located on the adjacent side of the same side. Figure 3 (The side corresponding to the lower middle edge). This embodiment has the following beneficial effects: the area of ​​the functional element that can be controlled by the optical performance region is large, and the voltage drop at the far end of the corresponding functional element is also large. If the electrode is too short, it will lead to inconsistent optical state on the front. If the electrode is too long, it will bring disadvantages in manufacturing and cost. Therefore, the reasonable selection of bus length has a crucial impact on the performance of the functional element.

[0078] Additionally, see Figure 3 Here, the cross-sectional area refers to the largest of the three cross-sectional areas obtainable along the three sides (length, width, and height) of a functional element whose optical performance can be regionally controlled electronically. Figure 3 In this case, the cross-sectional area is equal to the product of the lengths of the two sides.

[0079] In contrast to the aforementioned busbar 5 on the first planar electrode 3 being located on one side of the busbar 5 on the second planar electrode 4 and its adjacent side, this application also provides an embodiment in which the busbar 5 on the second planar electrode 4 and the busbar 5 on the first planar electrode 3 are located on the same side of the functional element. In this embodiment, the cross-sectional area of ​​the functional element is less than 0.5 m². 2 And the length of the busbar 5 on the first planar electrode 3 is not less than 100mm.

[0080] Understandably, this is mainly because the diaphragm area is small and the voltage drop of the planar electrode is limited. A single-sided electrode can ensure the overall uniformity of the diaphragm, while the bus length is greater than 100mm mainly to take into account the convenience of process operation.

[0081] In some embodiments of this application, see Figure 4 The busbar 5 on the first planar electrode 3 is located on the adjacent side of the busbar 5 on the second planar electrode 4 in the functional element.

[0082] Unlike Figure 2In this embodiment, the busbar 5 on the first planar electrode 3 and the busbar 5 on the second planar electrode 4 are located on adjacent sides, meaning that no part of the busbar 5 on the second planar electrode 4 is located on the same side as the busbar 5 on the first planar electrode 3. It is understood that this design can significantly reduce manufacturing costs and composite processing difficulty in subsequent flat conductor design processes. In this implementation, the cross-sectional area of ​​the functional element is not less than 0.5 μm². 2 The length of the busbar 5 on the first planar electrode 3 is not less than 300 mm and not greater than half the perimeter of the maximum cross-section of the functional element.

[0083] In some embodiments of this application, see Figure 3 (Top view of the functional element with regionally controllable optical performance (the dashed line in the figure corresponds to the cutting surface)), the partition cutting line 11 not only cuts the second planar electrode 4 in the part formed by the cutting surface, but also extends to the end of the second planar electrode 4 (from one end to the other).

[0084] Figure 5 Is Figure 3 The cross-sectional view is shown along the solid line at the center. It should be noted that the partition cutting line 11 only needs to be between two adjacent busbars 5, and there is no requirement for the distance.

[0085] In some embodiments of this application, see Figure 2 The multiple cutting surfaces include: a first cutting surface 7, a second cutting surface 8, a third cutting surface 9, and a fourth cutting surface 10; wherein:

[0086] The first cutting surface 7 cuts the first transparent substrate 1, the first planar electrode 3, and the dimming functional layer 6 along a direction perpendicular to the busbar 5 on the second planar electrode 4.

[0087] The second cutting surface 8 cuts the first transparent substrate 1, the first planar electrode 3, and the dimming functional layer 6 along a direction parallel to the busbar 5 on the second planar electrode 4;

[0088] The third cutting surface 9 cuts the second transparent substrate 2, the second planar electrode 4, and the dimming functional layer 6 along a direction perpendicular to the busbar 5 on the first planar electrode 3.

[0089] The fourth cutting surface 10 cuts the second transparent substrate 2, the second planar electrode 4, and the dimming functional layer 6 in a direction parallel to the busbar 5 on the second planar electrode 4.

[0090] In the above-described cutting method, the first cutting surface 7 and the second cutting surface 8 cooperate to expose the busbar 5 on the second planar electrode 4 outside the functional elements whose optical performance can be regionally controlled; the third cutting surface 9 and the fourth cutting surface 10 cooperate to expose the busbar 5 on the first planar electrode 3 outside the functional elements whose optical performance can be regionally controlled. Furthermore, the first cutting surface 7 intersects with the second cutting surface 8, and the first cutting surface 7 intersects with the second cutting surface 8.

[0091] It should be noted that when there are multiple busbars 5 on the first planar electrode 3, their types can be the same or different. Similarly, when there are multiple busbars 5 on the second planar electrode 4, their types can be the same or different, and the types of busbars 5 on the first planar electrode 3 and the second planar electrode 4 can be the same or different.

[0092] It should be noted that the direction of busbar 5 here refers to its long side direction. In addition, the cutting direction means that it is roughly perpendicular to busbar 5, and it is not required to be absolutely perpendicular. This application is not limited to this.

[0093] In this embodiment, the partition cutting line 11 is generally perpendicular to the direction of the busbar 5, as shown in the reference. Figure 6 The partition cutting line 11 bends at the location of bus 5, bypasses bus 5 at that location, and then extends in a direction approximately perpendicular to bus 5.

[0094] See Figure 7 In some embodiments of this application, another cutting method is also provided: the plurality of cutting surfaces further includes a fifth cutting surface 12; the fifth cutting surface 12 cuts the second transparent substrate 2, the second planar electrode 4 and the dimming functional layer 6 along a direction perpendicular to the busbar 5 on the first planar electrode 3; and the fifth cutting surface 12 intersects with the fourth cutting surface 10.

[0095] Figure 8 This is a top view of the functional element with regionally controllable optical performance provided in the above embodiments (the dashed lines in the figure correspond to the cutting surfaces). Figure 9 yes Figure 8 A cross-sectional view along the solid dot line.

[0096] In some embodiments of this application, when the busbar 5 on the first planar electrode 3 and the busbar 5 on the second planar electrode 4 are located on adjacent sides, that is, when no part of the busbar 5 on the second planar electrode 4 is located on the same side as the busbar 5 on the first planar electrode 3, see [reference needed]. Figure 4 , Figures 10 to 12The third cutting surface 9 begins to divide from the opposite side of the busbar 5 of the second planar electrode 4 (on the functional element with regionally controllable optical performance), and it does not extend to the side of the busbar 5 of the second planar electrode 4, but stops after intersecting with the fourth cutting surface 10.

[0097] In some embodiments of this application, the ratio of the length of the relatively shorter busbar 5 to the length of the relatively longer busbar 5 on the second planar electrode 4 and the first planar electrode 3 is not less than 0.5. Specifically, the length difference between the busbar 5 on the second planar electrode 4 and the busbar 5 on the first planar electrode 3 should not exceed 50%. Excessive difference in busbar length will also result in poor optical performance; preferably, the difference is less than 30%, and more preferably, less than 10%.

[0098] In some embodiments of this application, the distance between the busbar 5 on the first planar electrode 3 and the busbar 5 on the second planar electrode 4, which are located on the same side of the functional element whose optical performance is regionally controllable, is not less than 5 mm.

[0099] Since the busbar 5 on the first planar electrode 3 and the busbar 5 on the second planar electrode 4 are on different planar electrode surfaces, they need to be processed separately from different transparent substrates during processing to form corresponding substrate cutting surfaces. If the spacing is too close, it may cause the two electrodes to be too close to short circuit during transparent substrate cutting, or high voltage burn-through, or mutual interference during processing, damaging the corresponding busbar.

[0100] See Figure 6 , Figure 13 as well as Figure 14 In some embodiments of this application, the functional element whose optical performance can be regionally controlled further includes:

[0101] Conductor 14, whose lead-out body 13 corresponds to the busbar 5 on the first planar electrode 3 and the busbar 5 on the second planar electrode 4.

[0102] Preferably, conductor 14 can be a flat conductor. Further, the busbar 5 on the first planar electrode 3 and the busbar 5 on the second planar electrode 4 can be led out through the same flat conductor. The flat conductor is designed as a flexible printed circuit board, wherein each lead-out 13 of the flat conductor corresponds to the busbar 5 on the first planar electrode 3 and the busbar 5 on the second planar electrode 4. In the figure, 15 is a protective layer, and 16 is an external solder body (preferably...). Figure 13 The conductor 14 in the middle can be made of conductive copper foil.

[0103] In some embodiments of this application, the number of leads 13 is not less than the sum of the number of busbars 5 on the first planar electrode 3 and the number of busbars 5 on the second planar electrode 4. That is, the number of leads 13 of the flat conductor is greater than or equal to the total number of conductors of busbars 5 on the first planar electrode 3 and busbars 5 on the second planar electrode 4.

[0104] In some embodiments of this application, the dimming functional layer 6 includes any one or more combinations of PDLC dimming film, EC dimming film, SPD dimming film and LV dimming film (the dimming functional layer 6 can be dimming technology such as PDLC, EC, SPD, LV).

[0105] In some embodiments of this application, when there are multiple first transparent substrates 1 and multiple second transparent substrates 2, the multiple first transparent substrates 1 and multiple second transparent substrates 2 are arranged in a vertical direction. That is, in the vertical direction, according to Figure 1 The order (from bottom to top) is as follows: N second transparent substrates 2 (vertically covering each other), second planar electrode 4, dimming functional layer 6, first planar electrode 3, and N first transparent substrates 1 (vertically covering each other). It should be noted that the N second transparent substrates 2 can be replaced with N different transparent substrates, and the N first transparent substrates 1 can also be replaced with N different transparent substrates, but the corresponding first transparent substrates 1 on both sides of the dimming functional layer 6 must be consistent with the second transparent substrates 2.

[0106] In one embodiment, the present invention also provides a composite glass comprising any of the optically responsive electronically controllable functional elements as described in the above embodiments, for installation on at least one of a sunroof, side window, windshield, and rear window of a vehicle, and as interior or exterior glass in a building, for sun protection or privacy protection.

[0107] The composite glass installed on the vehicle as described in the above embodiments can control the optical properties of different areas of the vehicle glass in different regions without affecting the passenger's line of sight to the outside of the vehicle, that is, without affecting its function as a vehicle window itself. It can also control the optical properties of different positions in a certain piece of vehicle glass in the same region.

[0108] It is understandable that composite glass can also be used for subway car windows, train car windows, bus car windows, ship interior windows, airplane interior windows, and interior or exterior glass in buildings for sun protection or privacy protection.

[0109] As described above, the present invention provides a functional element and composite glass with regionally controllable optical performance. The functional element includes: at least one first transparent substrate and at least one second transparent substrate; a first planar electrode and a second planar electrode, the first planar electrode and the second planar electrode being located between the first transparent substrate and the second transparent substrate; each of the first planar electrode and the second planar electrode having at least one busbar; a dimming functional layer located between the first planar electrode and the second planar electrode; the functional element having multiple cut surfaces to expose the busbars on the first planar electrode and the second planar electrode; the second planar electrode having partition cutting lines, the partition cutting lines cutting the second planar electrode into independent segments along a direction perpendicular to the busbars on the second planar electrode, the number of independent segments corresponding to the number of busbars on the second planar electrode.

[0110] Compared to the functional elements with electro-optical performance control in the prior art, the functional elements with regionally controllable optical performance provided in this application embodiment, through the setting of cutting lines and busbars, on the one hand, realize individual area control, on the other hand, greatly simplify the manufacturing complexity of the regionally controllable optical functional elements, reduce the voltage drop between different regional functional areas, and ensure the consistency of optical properties of each independent functional area.

[0111] In the description of this specification, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise stated, "a plurality of" means two or more.

[0112] The terms "an embodiment," "a specific embodiment," "some embodiments," "for example," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The order of steps involved in the various embodiments is used to illustrate the implementation of the present invention, and the order of steps is not limited and may be adjusted as needed.

[0113] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0114] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A functional element with regionally controllable optical performance, characterized in that, include: At least one first transparent substrate and at least one second transparent substrate; A first planar electrode and a second planar electrode are located between the first transparent substrate and the second transparent substrate; Both the first planar electrode and the second planar electrode have at least one busbar; A dimming function layer is located between the first planar electrode and the second planar electrode; The functional element has multiple cut surfaces to expose the busbars on the first planar electrode and the busbars on the second planar electrode. The second planar electrode has partition cutting lines that divide the second planar electrode into independent segments along a direction perpendicular to the busbars on the second planar electrode. The number of independent segments corresponds to the number of busbars on the second planar electrode.

2. The functional element according to claim 1, characterized in that, At least a portion of the bus on the second planar electrode and the bus on the first planar electrode are located on the same side of the functional element.

3. The functional element according to claim 2, characterized in that, The busbar on the first planar electrode is zigzag-shaped and is located on one side of the busbar on the second planar electrode, as well as on the adjacent side of that side.

4. The functional element according to claim 3, characterized in that, The cross-sectional area of ​​the functional element is not less than 0.5m². 2 The bus length on the first planar electrode is not less than 300 mm and not greater than half the perimeter of the cross-section of the functional element.

5. The functional element according to claim 2, characterized in that, The busbar on the second planar electrode is located on the same side of the functional element as the busbar on the first planar electrode.

6. The functional element according to claim 5, characterized in that, The cross-sectional area of ​​the functional element is less than 0.5m². 2 And the bus length on the first planar electrode is not less than 100mm.

7. The functional element according to claim 1, characterized in that, The bus on the first planar electrode is located on the adjacent side of one side of the bus on the second planar electrode in the functional element.

8. The functional element according to claim 7, characterized in that, The cross-sectional area of ​​the functional element is not less than 0.5m². 2 The bus length on the first planar electrode is not less than 300 mm and not greater than half the perimeter of the maximum cross-section of the functional element.

9. The functional element according to claim 1, characterized in that, The plurality of cutting surfaces includes: a first cutting surface, a second cutting surface, a third cutting surface, and a fourth cutting surface, wherein: The first cutting surface cuts the first transparent substrate, the first planar electrode, and the dimming functional layer along a direction perpendicular to the busbar on the second planar electrode. The second cutting surface cuts the first transparent substrate, the first planar electrode, and the dimming functional layer along a direction parallel to the busbar on the second planar electrode. The third cutting surface cuts the second transparent substrate, the second planar electrode, and the dimming functional layer along a direction perpendicular to the busbar on the first planar electrode. The fourth cutting surface cuts the second transparent substrate, the second planar electrode, and the dimming functional layer along a direction parallel to the busbar on the second planar electrode.

10. The functional element according to claim 9, characterized in that, The plurality of cutting surfaces further includes: a fifth cutting surface; the fifth cutting surface cuts the second transparent substrate, the second planar electrode, and the dimming functional layer along a direction perpendicular to the busbar on the first planar electrode; and the fifth cutting surface intersects with the fourth cutting surface.

11. The functional element according to claim 1, characterized in that, The ratio of the length of the relatively shorter bus to the length of the relatively longer bus on the second planar electrode and the bus on the first planar electrode is not less than 0.

5.

12. The functional element according to claim 1, characterized in that, The minimum distance between the busbars on the first planar electrode and the busbars on the second planar electrode on the horizontal projection plane is not less than 5 mm.

13. The functional element according to claim 1, characterized in that, Also includes: The conductor has leads that correspond to the busbars on the first planar electrode and the busbars on the second planar electrode.

14. The functional element according to claim 13, characterized in that, The number of leads is not less than the sum of the number of buses on the first planar electrode and the number of buses on the second planar electrode.

15. The functional element according to claim 1, characterized in that, The dimming functional layer includes any one or more combinations of PDLC dimming film, EC dimming film, SPD dimming film and LV dimming film.

16. A composite glass, characterized in that, Includes an optically functional element with regionally controllable optical performance as described in any one of claims 1 to 14, for installation on at least one of a sunroof, side window, windshield, and rear window of a vehicle, and on interior or exterior glass of a building, for sun protection or privacy protection.

Images