WO2023241168A1 - 一种电致变色膜片及变色玻璃 - Google Patents

一种电致变色膜片及变色玻璃 Download PDF

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Publication number
WO2023241168A1
WO2023241168A1 PCT/CN2023/084715 CN2023084715W WO2023241168A1 WO 2023241168 A1 WO2023241168 A1 WO 2023241168A1 CN 2023084715 W CN2023084715 W CN 2023084715W WO 2023241168 A1 WO2023241168 A1 WO 2023241168A1
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WIPO (PCT)
Prior art keywords
groove
electrochromic
conductive substrate
diaphragm
thickness
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PCT/CN2023/084715
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English (en)
French (fr)
Inventor
王巍舒
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光羿智能科技(苏州)有限公司
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Publication of WO2023241168A1 publication Critical patent/WO2023241168A1/zh

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/15Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on an electrochromic effect
    • G02F1/153Constructional details
    • G02F1/1533Constructional details structural features not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/04Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/15Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on an electrochromic effect
    • G02F1/153Constructional details

Definitions

  • the present application relates to the field of electrochromism, and in particular to an electrochromic film and color-changing glass.
  • Electrochromism refers to the phenomenon that the optical properties (reflectivity, transmittance, absorptivity, etc.) of materials undergo stable and reversible color changes under the action of an external electric field, which is manifested as reversible changes in color and transparency in appearance.
  • Electrochromism is widely used in the adjustment of light transmittance or reflectivity of monitors, large posters or information boards and other announcement devices, smart windows, building window glass, automotive mirrors, flexible displays, automotive skylights, sports glasses, etc. Recently, it has been discovered that in addition to discoloration in the visible light region, it also has an infrared shielding effect, attracting attention as an energy-saving product.
  • electrochromic diaphragms can be bent to match the use needs of curved surfaces and other scenes.
  • the electrochromic diaphragm needs to be bent not only on one side, but also on two or more sides.
  • the electrochromic diaphragm is prone to wrinkles, especially in electrochromic applications.
  • the edges of the discolored diaphragm tend to have many wrinkles, which not only makes the appearance difficult to accept by users, but also leads to a worsening of the user's visual experience.
  • the purpose of this application is to overcome the deficiencies in the prior art and provide an electrochromic film and color-changing glass.
  • an electrochromic diaphragm including a first conductive substrate, an electrochromic layer and a second conductive substrate stacked in sequence; a first receiving groove is provided on the edge of the first conductive substrate, and the The edge of the second conductive substrate is provided with a second receiving groove, and the edge of the electrochromic layer is provided with at least two third receiving grooves; the first receiving groove is located between the orthogonal projection of the plane where the electrochromic layer is located and At least one of the third accommodating grooves overlaps, and the first accommodating groove and the third accommodating groove are connected to form a first groove; the orthographic projection of the second accommodating groove on the plane where the electrochromic layer is located and At least one of the third receiving grooves overlaps, and the second receiving groove and the third receiving groove are connected to form a second groove; the first grooves and the second grooves are alternately arranged on the electrical The edge of the electrochromic diaphragm; the width of the first groove and the width of the second groove are both a, and any
  • the width of the groove by setting the width of the groove to be a and the spacing between the grooves to be b, by increasing the groove The width a or the width b of the groove spacing is reduced, so that the groove width is greater than the spacing width, that is, a ⁇ b. Therefore, during the bending process of the electrochromic diaphragm, a groove with a larger width can be used. It provides sufficient space margin required for bending, or reduces the amount of wrinkles in the groove spacing area through smaller groove spacing, thereby reducing or avoiding the generation of wrinkles on the electrochromic diaphragm, especially electrochromic membranes. The edge wrinkles of the electrochromic diaphragm are produced, thereby improving the aesthetics of the electrochromic diaphragm.
  • the range of b is b ⁇ 30 mm; preferably, the range of b is b ⁇ 1 mm; further, the range of b is 2 mm ⁇ b ⁇ 15 mm.
  • the groove spacing area is the uncut area of the conductive base, electrochromic layer, etc. of the electrochromic diaphragm. The probability of wrinkles appearing in these areas is greater, and the degree of wrinkles is more serious.
  • the groove spacing When the value of b is too large, the wrinkles of the electrochromic diaphragm will be more obvious or serious; and the groove area will expose the conductive surface of the conductive substrate.
  • the first groove can expose the conductive surface of the second conductive substrate, and the second groove will expose the conductive surface of the second conductive substrate.
  • the grooves can expose the conductive surface of the first conductive substrate. Therefore, when the spacing b between the grooves is too small, it is easy to cause electrical connection between the conductive surfaces on both sides, thereby forming a short circuit. Therefore, by limiting the range of the groove spacing b, wrinkles can be effectively reduced or avoided, and short circuits in the electrochromic diaphragm can be further avoided, thereby improving the aesthetics of the diaphragm or the safety and reliability of use.
  • the ratio of a to b is a/b, where 5 ⁇ a/b; preferably, the ratio of a to b is a/b, where 5 ⁇ a/b ⁇ 50; further, the sum of a and b satisfies the following relational formula, 90mm ⁇ a+b ⁇ 750mm.
  • the wrinkle alleviating effect can be further improved, or the amount of wrinkles generated can be further reduced, thereby further reducing or avoiding electrochromism.
  • the wrinkles on the diaphragm are generated to meet the requirements for the degree of wrinkles of the electrochromic diaphragm in different application scenarios, and further enhance the aesthetics of the electrochromic diaphragm.
  • the thickness of the first conductive substrate and the thickness of the second conductive substrate are not less than 120um; further, the thickness of the first conductive substrate and the thickness of the second conductive substrate are not less than 150um. . Therefore, by making the thickness value of the conductive substrate meet a specific size, the wrinkle alleviating effect on the electrochromic diaphragm can be further improved, and the aesthetics of the electrochromic diaphragm can be further improved.
  • the arch height of the electrochromic diaphragm along the first direction is H 1
  • the arch height of the electrochromic diaphragm along the second direction is H 2
  • the H 1 and H The product of 2 satisfies the following relationship: H 1 ⁇ H 2 ⁇ 2500mm 2 ; preferably, the first direction is perpendicular to the second direction.
  • the electrochromic diaphragm may bend in multiple directions. For example, bending in two directions causes the electrochromic diaphragm to form a hyperboloid structure.
  • the electrochromic diaphragm is bent along the first direction to form an arch height H 1 and along the The arch height H 2 is formed by bending in the second direction.
  • the wrinkle alleviation effect can be further improved, and the wrinkle relief effect can be further improved.
  • the depth of the first groove and the depth of the second groove are both h, 0 ⁇ h ⁇ 100mm; preferably, The range of h is, 20mm ⁇ h ⁇ 80mm.
  • the range of h is, 20mm ⁇ h ⁇ 80mm.
  • the depth of the groove is too small, the exposed conductive surface of the conductive substrate is less, which is not conducive to the conductive extraction on the conductive substrate; if the depth of the groove is too large, the wider the electrochromic layer that is cut and removed, so that The discoloration area of the electrochromic diaphragm becomes narrower; therefore, limiting the depth of the groove to a certain range not only ensures that there is enough conductive surface to facilitate conductive extraction, but also ensures that the electrochromic diaphragm has a sufficiently wide discoloration area. area to increase the practical area of the diaphragm.
  • Another aspect of the present application also provides a color-changing glass, including a glass layer and the above-mentioned electrochromic film; the electrochromic film is laminated between at least two layers of the glass layers. Therefore, by stacking the electrochromic film between the glass layers, the glass layer can better clamp the electrochromic film, which can further prevent or reduce the occurrence of wrinkles in the electrochromic film, thereby Improve the overall aesthetics of color-changing glass.
  • the solution of the present application has the following advantages: by adjusting the width of the first groove and the second groove and the spacing between the adjacent first groove and the second groove, the first groove and the second groove can pass through the first groove and the second groove.
  • Figure 1 shows a schematic structural diagram of an electrochromic diaphragm provided by some embodiments of the present application from one perspective;
  • Figure 2 shows a schematic structural diagram of an electrochromic diaphragm provided by some embodiments of the present application from another perspective;
  • Figure 3 shows a schematic structural diagram of an electrochromic layer in an electrochromic film provided by some embodiments of the present application
  • Figure 4 shows a schematic structural diagram of a first conductive substrate in an electrochromic diaphragm provided by some embodiments of the present application
  • Figure 5 shows a schematic structural diagram of a second conductive substrate in an electrochromic diaphragm provided by some embodiments of the present application
  • Figure 6 shows a structural schematic diagram of other structures of an electrochromic diaphragm provided by some embodiments of the present application from one perspective;
  • Figure 7 shows a cross-sectional view of part A-A in Figure 6;
  • FIG. 8 shows an enlarged view of part B in FIG. 7 .
  • connection In this application, unless otherwise clearly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements.
  • connection connection
  • fixing and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include one or more of these features.
  • plurality means two or more than two, unless otherwise explicitly and specifically limited.
  • the electrochromic film 100 includes a first conductive substrate 110, an electrochromic layer 120 and a second conductive substrate 130 that are stacked in sequence.
  • both the first conductive substrate 110 and the second conductive substrate 130 completely cover the electrochromic layer 120 .
  • the first conductive substrate 110 includes a stacked first base layer 112 and a first conductive layer 113 , and the first conductive layer 113 is stacked between the first base layer 112 and the electrochromic layer 120 .
  • the first conductive layer 113 completely covers the electrochromic layer 120 .
  • the second conductive substrate 130 includes a stacked second base layer 132 and a second conductive layer 133 , and the second conductive layer 133 is stacked between the second base layer 132 and the electrochromic layer 120 .
  • the second conductive layer 133 completely covers the electrochromic layer 120 .
  • first conductive layer 113 and the second conductive layer 133 are respectively used to connect to external power sources. By connecting the first conductive layer 113 and the second conductive layer 133 to an external power supply respectively, an external electric field is formed between the first conductive layer 113 and the second conductive layer 133, so that the electrochromic layer 120 is affected by the external electric field. A stable and reversible color change occurs under the condition.
  • a first receiving groove 111 is provided at the edge of the first conductive substrate 110
  • a second receiving groove 131 is provided at the edge of the second conductive substrate 130
  • at least one is provided at the edge of the electrochromic layer 120.
  • Two third receiving grooves 121 are provided.
  • the number of the first accommodating groove 111 and the second accommodating groove 131 can be one, two or more than two arbitrary values, which can be specifically set according to the actual situation, and the number of the third accommodating groove 121 can be is the number of two or more arbitrary values.
  • the first receiving groove 111 can be provided on any side of the first conductive base 110 .
  • the first receiving groove 111 is provided on at least two sides of the first conductive base 110 , that is, the first receiving groove 111 can be provided on any two sides of the first conductive base 110 .
  • a first receiving groove 111 is provided on each side of the edge of the first conductive substrate 110 .
  • the second receiving groove 131 may be provided on any side of the second conductive base 130 .
  • the second receiving groove 131 is provided on at least two sides of the second conductive base 130 , that is, the second receiving groove 131 can be provided on any two sides of the second conductive base 130 .
  • a second receiving groove 131 is provided on each side of the edge of the second conductive substrate 130 .
  • the sum of the number of the first receiving grooves 111 and the number of the second receiving grooves 131 is equal to the number of the third receiving grooves 121 .
  • the orthographic projection of the first accommodation groove 111 on the plane where the electrochromic layer 120 is located overlaps with at least one of the third accommodation grooves 121 , and the first accommodation groove 111 and the third accommodation groove 121 overlap with each other.
  • the receiving grooves 121 are connected to form a first groove.
  • a first receiving groove 111 communicates with a third receiving groove 121 to form a first groove 140 .
  • the orthographic projection of the second accommodation groove 131 on the plane where the electrochromic layer 120 is located overlaps with at least one of the third accommodation grooves 121 , and the second accommodation groove 131 and the third accommodation groove 121
  • the second groove 150 is formed in communication.
  • a second receiving groove 131 communicates with a third receiving groove 121 to form a second groove 150 .
  • first grooves 140 and the second grooves 150 are staggered at the edge of the electrochromic diaphragm 100 .
  • first grooves 140 and second grooves 150 there are multiple first grooves 140 and second grooves 150 on each side of the edge of the electrochromic diaphragm 100 At least one first groove 140 and at least one second groove 150 are provided. Specifically, the orthographic projections of the first groove 140 and the second groove 150 on the plane where the electrochromic layer 120 is located are spaced apart from each other, that is, the first groove 140 and the second groove 150 are formed on the edge of the electrochromic film 100 Interleaved groove structure.
  • the width of the first groove 140 and the width of the second groove 150 are both a.
  • the width of the first groove 140 refers to the width of the first groove 140 in a direction perpendicular to the thickness of the electrochromic film 100 and parallel to one side of the edge of the electrochromic film 100 . 140 in length.
  • the width of the second groove 150 refers to the length of the second groove 150 located on one side of the edge of the electrochromic film 100 in a direction perpendicular to the thickness of the electrochromic film 100 .
  • the distance between any adjacent first groove 140 and the second groove 150 in the orthographic projection of the plane where the electrochromic layer 120 is located is b, b ⁇ a.
  • the groove width of the groove is a and the spacing between the grooves to be b, by increasing the width a of the grooves or reducing the width b of the groove spacing, the groove width is greater than the spacing width, that is, a ⁇ b. Therefore, during the bending process of the electrochromic diaphragm, a groove with a larger width can be used to provide sufficient space margin required for bending, or a smaller groove spacing can be used to reduce the concavity. The amount of wrinkles produced in the groove spacing area can be reduced or avoided, especially the wrinkles on the edge of the electrochromic diaphragm, thereby improving the aesthetics of the electrochromic diaphragm.
  • the range of b is, b ⁇ 30mm.
  • first grooves 140 and second grooves 150 are b>0.
  • the range of b can be: 0 ⁇ b ⁇ 30mm, 0 ⁇ b ⁇ 25mm, 0 ⁇ b ⁇ 20mm, 0 ⁇ b ⁇ 15mm, 0 ⁇ b ⁇ 10mm, 0 ⁇ b ⁇ 5mm, 5 ⁇ b ⁇ 30mm, 5 ⁇ b ⁇ 25mm, 5 ⁇ b ⁇ 20mm, 5 ⁇ b ⁇ 15mm, 5 ⁇ b ⁇ 10mm, 10 ⁇ b ⁇ 30mm, 10 ⁇ b ⁇ 25mm, 10 ⁇ b ⁇ 20mm, 10 ⁇ b ⁇ 15mm, 15 ⁇ Any one of b ⁇ 30mm, 15 ⁇ b ⁇ 25mm, 15 ⁇ b ⁇ 20mm, 20 ⁇ b ⁇ 30mm, 20 ⁇ b ⁇ 25mm and 25 ⁇ b ⁇ 30mm.
  • the range of b is, b ⁇ 1mm. It can be understood that the distance b between adjacent first grooves 140 and second grooves 150 can be any value greater than 1.
  • the range of b is 2mm ⁇ b ⁇ 15mm.
  • the range of b can be: 2mm ⁇ b ⁇ 15mm, 3mm ⁇ b ⁇ 15mm, 4mm ⁇ b ⁇ 15mm, 5mm ⁇ b ⁇ 15mm, 6mm ⁇ b ⁇ 15mm, 7mm ⁇ b ⁇ 15mm, 8mm ⁇ b ⁇ 15mm, 9mm ⁇ b ⁇ 15mm, 10mm ⁇ b ⁇ 15mm, 11mm ⁇ b ⁇ 15mm, 12mm ⁇ b ⁇ 15mm, 13mm ⁇ b ⁇ 15mm, 14mm ⁇ b ⁇ 15mm, 2mm ⁇ b ⁇ 14mm, 2mm ⁇ b ⁇ 13mm, 2mm ⁇ b ⁇ 12mm, 2mm ⁇ b ⁇ 11mm, 2mm ⁇ b ⁇ 10mm, 2mm ⁇ b ⁇ 9mm, 2mm ⁇ b ⁇ 8mm, 2mm ⁇ b ⁇ 7mm, 2mm ⁇ b ⁇ 6mm, 2mm ⁇ b ⁇ 5mm, 2mm ⁇ b ⁇ 4mm, 2mm ⁇ b ⁇ 3mm , 3mm ⁇ b ⁇ 14mm, 5mm ⁇ b ⁇ 13mm, 6mm ⁇ b ⁇ 12mm, 7mm ⁇ b ⁇ 11mm, 8mm ⁇ b ⁇ 10mm,
  • the ratio of a to b is a/b, and 5 ⁇ a/b. It should be noted that the ratio a/b of a to b can be any value greater than or equal to 5, and can be specifically set according to the actual situation.
  • the electrochromic film is improved.
  • the ratio of a to b is a/b, 5 ⁇ a/b ⁇ 50.
  • the ratio a/b of the a to the b may be in the range of 5 ⁇ a/b ⁇ 50, 5 ⁇ a/b ⁇ 45, 5 ⁇ a/b ⁇ 40, 5 ⁇ a/b ⁇ 35, 5 ⁇ a/b ⁇ 30, 5 ⁇ a/b ⁇ 25, 5 ⁇ a/b ⁇ 20, 5 ⁇ a/b ⁇ 50, 5 ⁇ a/b ⁇ 15, 5 ⁇ a/b ⁇ 10 , 10 ⁇ a/b ⁇ 50, 10 ⁇ a/b ⁇ 45, 10 ⁇ a/b ⁇ 40, 10 ⁇ a/b ⁇ 35, 10 ⁇ a/b ⁇ 30, 10 ⁇ a/b ⁇ 25, 10 ⁇ a/b ⁇ 20, 10 ⁇ a/b ⁇ 15, 15 ⁇ a/b ⁇ 50, 15 ⁇ a/b ⁇ 45, 15 ⁇ a/b ⁇ 40, 15 ⁇ a/b ⁇ 35, 15 ⁇ a /b ⁇ 30, 15 ⁇ a/b ⁇ 25, 15 ⁇ a/b ⁇ 20, 20 ⁇ a/b ⁇ 50, 20 ⁇ a/b ⁇ 45, 20 ⁇ a/b ⁇ 40, 20 ⁇ a/b ⁇
  • the sum of a and b satisfies the following relationship: 90mm ⁇ a+b ⁇ 750mm.
  • the range of a+b can be: 90mm ⁇ a+b ⁇ 750mm, 100mm ⁇ a+b ⁇ 750mm, 150mm ⁇ a+b ⁇ 750mm, 150mm ⁇ a+b ⁇ 700mm, 150mm ⁇ a+b ⁇ 650mm, 150mm ⁇ a+b ⁇ 600mm, 150mm ⁇ a+b ⁇ 550mm, 150mm ⁇ a+b ⁇ 500mm, 150mm ⁇ a+b ⁇ 450mm, 150mm ⁇ a+b ⁇ 400mm, 150mm ⁇ a+b ⁇ 350mm, 150mm ⁇ a+b ⁇ 300mm, 150mm ⁇ a+b ⁇ 250mm, 150mm ⁇ a+b ⁇ 200mm, 200mm ⁇ a+b ⁇ 750mm, 200mm ⁇ a+b ⁇ 700mm, 200mm ⁇ a+b ⁇ 650mm, 200mm ⁇ a+ b ⁇ 600mm, 200mm ⁇ a+b ⁇ 550mm, 200mm ⁇ a+b ⁇ 500mm, 200mm ⁇ a+b ⁇ 450
  • the range of a/b may be any one of the above ranges, and the range of a+b may be any one of the above ranges.
  • the thickness of the first conductive substrate and the thickness of the second conductive substrate are both 188 ⁇ m.
  • the comparative example in Table 1 shows the wrinkle changes at the edge of the electrochromic membrane 100 when b>a and b>30.
  • the wrinkle depth value of the electrochromic diaphragm 100 also gradually decreases. It can be understood that when the widths of the first groove 140 and the second groove 150 remain unchanged, as the spacing between the adjacent first grooves 140 and the second groove 150 gradually decreases, the electrical The depth of the folds of the chromic membrane 100 gradually decreases.
  • the wrinkle depth of the electrochromic diaphragm 100 decreases as b decreases, the wrinkle depth is not less than 48mm, which is still at a large value, that is, when In this ratio, by adjusting the spacing b between the adjacent first grooves 140 and the second grooves 150 , the wrinkle depth at the edge of the electrochromic diaphragm 100 is not significantly improved.
  • Table 1 shows the change in wrinkles at the edge of the electrochromic diaphragm 100 when b ⁇ a and 1 ⁇ b ⁇ 30.
  • the wrinkle depth value of the electrochromic diaphragm 100 gradually decreases from 40 mm to 19 mm.
  • the wrinkle depth values of the electrochromic diaphragm 100 are smaller than the wrinkle depths of the electrochromic diaphragm 100 in the comparative examples, that is, in the implementation of Table 1
  • the wrinkle depth of the electrochromic diaphragm can be significantly improved.
  • the comparative example in Table 2 shows the change in the wrinkle depth of the edge of the electrochromic diaphragm 100 when the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 are both gradually increased.
  • the wrinkle depth at the edge of the electrochromic diaphragm 100 decreases from 130 mm to 120 mm. It can be understood that the change in thickness is greater than the change in wrinkle depth. At this time, the change in the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 has a smaller improvement in the wrinkle depth of the electrochromic membrane 100 .
  • the embodiment in Table 2 shows that when the thickness of the first conductive substrate 110 and the second conductive substrate 130 gradually increases from 125 ⁇ m to 188 ⁇ m, the wrinkle depth of the edge of the electrochromic diaphragm 100 decreases from 110 mm to 21 mm. .
  • the thickness variation of the electrochromic diaphragm 100 is 63 ⁇ m
  • the wrinkle depth variation of the electrochromic diaphragm 100 is about 89 mm
  • the ratio of the thickness variation of the electrochromic diaphragm 100 to the wrinkle depth variation is about 0.7 , and less than 1, that is, by increasing the thickness of the electrochromic diaphragm, its wrinkles can be significantly improved.
  • the wrinkle depth of the electrochromic diaphragm 100 in the embodiments in Table 2 is smaller than the wrinkle depth of the electrochromic diaphragm 100 in the comparative example in Table 2. It can be understood that as the thickness of the first conductive substrate 110 and the second conductive substrate 130 gradually increases, the wrinkle depth of the electrochromic membrane becomes smaller and smaller, and has a very obvious improvement.
  • the embodiment in Table 2 shows that when the thickness of the first conductive substrate 110 and the second conductive substrate 130 gradually increases from 188 ⁇ m to 400 ⁇ m, the wrinkle depth of the electrochromic membrane decreases from 21 mm to less than 15mm.
  • the thickness variation of the electrochromic diaphragm 100 is 212 ⁇ m
  • the wrinkle depth of the electrochromic diaphragm 100 is 212 ⁇ m.
  • the change amount is about 6 mm
  • the ratio of the thickness change amount of the electrochromic diaphragm 100 to the wrinkle depth change amount is about 35, which is much greater than 1. At this time, changes in the thickness of the electrochromic diaphragm 100 have very little effect on improving its wrinkles.
  • the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 respectively reach 188 ⁇ m, continuing to increase the thickness will not significantly improve the wrinkle depth of the electrochromic membrane.
  • neither the thickness of the first conductive substrate 110 nor the thickness of the second conductive substrate 130 is less than 120um. It can be understood that the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 can be any value greater than or equal to 120um, and can be specifically set according to the actual situation.
  • neither the thickness of the first conductive substrate 110 nor the thickness of the second conductive substrate 130 is less than 150um. It can be understood that the thickness of the first conductive substrate 110 and the thickness of the second conductive substrate 130 can be any value greater than or equal to 150um, and can be specifically set according to the actual situation.
  • the wrinkle depth of the electrochromic diaphragm 100 decreases from 60 to 19.
  • the variation in thickness is 38
  • the variation in wrinkle depth of the electrochromic diaphragm 100 is 41
  • the ratio of the variation in thickness to the variation in wrinkle depth is approximately 0.926, which is less than 1.
  • the arch height of the electrochromic diaphragm 100 along the first direction is H 1
  • the arch height of the electrochromic diaphragm 100 along the second direction is H 2
  • the product of H 1 and H 2 satisfies the following relational expression, H 1 ⁇ H 2 ⁇ 2500mm 2 ;
  • the arch height H 1 refers to the bending height of the electrochromic diaphragm 100 with a length of one meter along the first direction
  • the arch height H 2 refers to the bending height of the electrochromic diaphragm 100 with a length of one meter along the second direction. high.
  • first direction is perpendicular to the second direction.
  • first direction and the second direction are respectively perpendicular to the thickness direction of the electrochromic film 100 .
  • H 1 The product range between the arch height H 1 of the color diaphragm along the first direction and the arch height H 2 of the electrochromic diaphragm along the second direction, H 1 ⁇ H 2 ⁇ 2500mm 2 .
  • the range of H 1 ⁇ H 2 can be H 1 ⁇ H 2 ⁇ 2500mm 2 , H 1 ⁇ H 2 ⁇ 2400mm 2 , H 1 ⁇ H 2 ⁇ 2300mm 2 , H 1 ⁇ H 2 ⁇ 2200mm 2 , H 1 ⁇ H 2 ⁇ 2100mm 2 , H 1 ⁇ H 2 ⁇ 2000mm 2 , H 1 ⁇ H 2 ⁇ 1900mm 2 , H 1 ⁇ H 2 ⁇ 1800mm 2 , H 1 ⁇ H 2 ⁇ 1700mm 2 , H 1 ⁇ H 2 ⁇ 1600mm 2.H 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
  • the wrinkles generated at the edge of the electrochromic diaphragm 100 are alleviated or the wrinkles generated at the edge of the electrochromic diaphragm 100 are eliminated, thereby The aesthetics of the electrochromic diaphragm 100 is improved.
  • the depth of the first groove and the depth of the second groove are both h, 0 ⁇ h ⁇ 100mm.
  • the depth of the first groove 140 is equal to the sum of the thickness of the first conductive substrate 110 and the electrochromic layer 120
  • the depth of the second groove 150 is equal to the sum of the thickness of the second conductive substrate 130 and the electrochromic layer 120 .
  • the sum of the thicknesses of the color-changing layers 120 is equal.
  • the depth of the first groove 140 is equal to the depth of the second groove 150.
  • the value range of h can be 0 ⁇ h ⁇ 100mm, 10mm ⁇ h ⁇ 100mm, 20mm ⁇ h ⁇ 100mm, 30mm ⁇ h ⁇ 100mm, 40mm ⁇ h ⁇ 100mm, 50mm ⁇ h ⁇ 100mm, 60mm ⁇ h ⁇ 100mm, 70mm ⁇ h ⁇ 100mm, 80mm ⁇ h ⁇ 100mm, 90mm ⁇ h ⁇ 100mm, 0 ⁇ h ⁇ 90mm, 10mm ⁇ h ⁇ 90mm, 20mm ⁇ h ⁇ 90mm, 30mm ⁇ h ⁇ 90mm, 40mm ⁇ h ⁇ 90mm, 50mm ⁇ h ⁇ 90mm, 60mm ⁇ h ⁇ 90mm, 70mm ⁇ h ⁇ 90mm, 80mm ⁇ h ⁇ 90mm, 0 ⁇ h ⁇ 80mm, 10mm ⁇ h ⁇ 80mm, 20mm ⁇ h ⁇ 80mm, 30mm ⁇ h ⁇ 80mm, 40mm ⁇ h ⁇ 80mm, 50mm ⁇ h ⁇ 80mm, 60mm ⁇ h ⁇ 80mm, 70mm ⁇ h ⁇ 80mm, 0 ⁇ h ⁇ 70mm, 10mm ⁇ h ⁇ 70mm, 20mm ⁇ h ⁇ 70mm, 30mm ⁇ h ⁇
  • the depth of the first groove 140 and the depth of the second groove 150 are determined by the thickness of the first conductive substrate 110 , the thickness of the second conductive substrate 130 and the electrochromic layer. Determined by the thickness of 120, that is, by increasing or decreasing the thickness of the first conductive substrate 110, the thickness of the second conductive substrate 130 and the thickness of the electrochromic layer 120, the depth of the first groove 140 and the thickness of the electrochromic layer 120 are increased or decreased.
  • the depth of the second groove is 150.
  • the shape of the electrochromic diaphragm 100 can be any one of polygon, regular polygon or special shape, and can be specifically set according to the actual situation.
  • the value of a of the electrochromic diaphragm 100 may correspond to one value, two values, or multiple values. It should be noted that when a of the electrochromic diaphragm 100 only corresponds to one value, that is, the width of each first groove 140 and the width of each second groove 150 are equal.
  • the width of the first groove 140 and the width of the second groove 150 can be any value among a 1 and a 2 .
  • the value of n corresponds to multiple values, and the multiple values corresponding to a are defined as a 1 , a 2 ...a n , the value of n can be an integer of any value greater than 2, and a The value range of n is equal to the value range of a.
  • the value of the first groove 140 can be any value among a 1 , a 2 ... an
  • the value of the second groove 150 can be any value among a 1 , a 2 ... an Any value of can be set according to the actual situation.
  • the value of b of the electrochromic diaphragm 100 may correspond to one numerical value or multiple numerical values. It should be noted that when b of the electrochromic diaphragm 100 only corresponds to one value, that is, any adjacent first groove 140 and second groove 150 are on the plane where the electrochromic layer 120 is located. The orthographic projections are all equally spaced.
  • the value of n can be an integer of any value not less than 2, and in addition , the value range of b n is equal to the value range of b. That is, the distance between any adjacent first groove 140 and the second groove 150 in the orthographic projection of the plane where the electrochromic layer 120 is located can be b 1 , b 2 ?? b n Any value of can be set according to the actual situation.
  • the wrinkle depth of the electrochromic diaphragm 100 mentioned in this application refers to the wrinkle depth of the edge of the electrochromic diaphragm 100 .
  • sealant 400 is provided in the circumferential direction of each first groove 140 and each second groove 150 .
  • the second conductive substrate 130 is fixed by the sealant layer disposed in the circumferential direction of the first groove 140, and the electrochromic layer 120 opposite the first groove 140 is isolated from the external air and water.
  • the sealant layer in the circumferential direction of the two grooves 150 fixes the first conductive substrate 110 and at the same time connects the electrochromic layer 120 opposite to the second groove 150 with the external air. It is separated from water to prevent external water and oxygen from entering the electrochromic diaphragm 100, so as to improve the service life and use stability of the electrochromic diaphragm 100.
  • the sealant 400 is a high-temperature glue.
  • the high-temperature glue is mainly made of aluminosilicate, inorganic ceramic powder and other ingredients to meet different temperature resistance requirements.
  • the temperature resistance ranges from 200 degrees to 1800 degrees. .
  • a first bus bar 200 is provided on the edge of the side of the first conductive substrate 110 away from the electrochromic layer 120 , and the first bus bars 200 are stacked On the edge of the side of the first conductive substrate 110 away from the electrochromic layer 120 .
  • first bus bar 200 is located in the first groove 140, and the first bus bar 200 located in the first groove 140 forms a "concave" shape in the first groove 140, located in the first groove 140.
  • a part of the first bus bar 200 in the first groove 140 fits with the sealant 400 on the inner wall of the first groove 140 to fix the first bus bar 200 through the sealant 400 and improve the position of the first bus bar 200 .
  • stability on the first conductive substrate 110 .
  • the first bus bar 200 partially located at the bottom of the first groove 140 is electrically connected to a portion of the second conductive layer 133 exposed in the first groove 140 .
  • the sealant 400 can play the role of insulating support for the first bus bar 200 and the second bus bar 300 to avoid electrical contact between the first bus bar 200 and the second bus bar 300, thereby avoiding the electrochromic film. Chip 100 short circuit situation occurs.
  • a second bus bar 300 is provided on the edge of the side of the second conductive substrate 130 away from the electrochromic layer 120 , and the second bus bar 300 is stacked on the second conductive substrate 130 away from the electrochromic layer 120 .
  • the edge of one side of the color changing layer 120 is provided on the edge of the side of the second conductive substrate 130 away from the electrochromic layer 120 .
  • a part of the second bus bar 300 is located in the second groove 150, and the second bus bar 300 located in the second groove 150 forms a "concave" shape in the second groove 150, located at A part of the second bus bar 300 in the second groove 150 fits with the sealant 400 on the inner wall of the second groove 150 to fix the first bus bar 200 through the sealant 400 and improve the position of the first bus bar 200. stability on the first conductive substrate 110 .
  • the second bus bar 300 partially located at the bottom of the second groove 150 is electrically connected to a portion of the first conductive layer 113 exposed in the second groove 150 .
  • the electrical connection points of the electrochromic diaphragm can be distributed more evenly, so that electricity can be conducted to the third
  • the uniformity on the first conductive substrate and the second conductive substrate layer is improved.
  • FIG. 1 Other embodiments of the present application also provide a color-changing glass, including a glass layer and the electrochromic film 100 described in any of the above embodiments.
  • the electrochromic film 100 is laminated between at least two layers of glass.
  • the electrochromic film 100 is laminated between two glass layers to form color-changing glass.
  • the two glass layers completely cover the electrochromic film 100 .

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Abstract

一种电致变色膜片(100)及变色玻璃,电致变色膜片(100)包括依次层叠的第一导电基底(110)、电致变色层(120)和第二导电基底(130);第一导电基底(110)的边缘设有第一容纳槽(111),第二导电基底(130)的边缘设有第二容纳槽(131),电致变色层(120)的边缘设有至少两个第三容纳槽(121);第一容纳槽(111)和第三容纳槽(121)连通形成第一凹槽(140);第二容纳槽(131)和第三容纳槽(121)连通形成第二凹槽(150);第一凹槽(140)的宽度和第二凹槽(150)的宽度均为a,任意相邻的第一凹槽(140)和第二凹槽(150)在电致变色层(120)所在平面的正投影之间的间距为b,b≤a。通过第一凹槽(140)和第二凹槽(150)为电致变色膜片(100)的边缘提供弯折的空间余量,以大大减小或避免电致变色膜片(100)的边缘产生褶皱,从而提高电致变色膜片(100)的美观性,提升用户的视觉体验。

Description

一种电致变色膜片及变色玻璃
本申请要求于2022年06月16日在中国专利局提交的、申请号为202210685619.5、发明名称为“一种电致变色膜片及变色玻璃”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电致变色领域,尤其涉及一种电致变色膜片及变色玻璃。
背景技术
电致变色是指材料的光学属性(反射率、透过率、吸收率等)在外加电场的作用下发生稳定、可逆的颜色变化的现象,在外观上表现为颜色和透明度的可逆变化。
电致变色广泛应用于显示器、大型海报或信息板等公告用装置、智能窗、建筑用窗户玻璃、汽车镜、柔性显示器、汽车用天窗、运动眼镜等的透光率或者反射率的调节,随着最近发现除了在可见光区域中的变色以外还具有红外线屏蔽效果,作为能量节约型产品的应用前景备受关注。
现有的电致变色膜片能够弯曲,以匹配曲面等场景的使用需求。但在一些应用场景中,例如车辆的天窗玻璃中,不仅需要电致变色膜片单面弯曲,还需要双面或多面弯曲,由此导致电致变色膜片很容易出现褶皱,尤其在电致变色膜片的边缘容易出现较多褶皱,不仅在外观上难以被用户接受,还会导致用户在视觉上的体验感变差。
技术问题
有鉴于此,本申请的目的是为了克服现有技术中的不足,提供一种电致变色膜片及变色玻璃。
技术解决方案
本申请的一方面提供一种电致变色膜片,包括依次层叠的第一导电基底、电致变色层和第二导电基底;所述第一导电基底的边缘设有第一容纳槽,所述第二导电基底的边缘设有第二容纳槽,所述电致变色层的边缘设有至少两个第三容纳槽;所述第一容纳槽在所述电致变色层所在平面的正投影与至少一个所述第三容纳槽重叠,且所述第一容纳槽和所述第三容纳槽连通形成第一凹槽;所述第二容纳槽在所述电致变色层所在平面的正投影与至少一个所述第三容纳槽重叠,且所述第二容纳槽和所述第三容纳槽连通形成第二凹槽;所述第一凹槽和所述第二凹槽交错设置在所述电致变色膜片的边缘;所述第一凹槽的宽度和所述第二凹槽的宽度均为a,任意相邻的所述第一凹槽和所述第二凹槽在所述电致变色层所在平面的正投影之间的间距为b,其中,b≤a。
在本申请的一方面中,通过设置凹槽的宽度为a,凹槽之间的间距为b,通过增加凹槽 的宽度a或减小凹槽间距的宽度b,使得凹槽宽度大于间距宽度,即a≥b,由此,在电致变色膜片弯折的过程中,可以通过宽度较大的凹槽为其提供弯折所需的足够的空间余量,或通过较小的凹槽间距减少凹槽间距区域的褶皱产生量,从而减小或避免电致变色膜片上褶皱的产生,尤其是电致变色膜片边缘褶皱的产生,由此提高电致变色膜片的美观度。
可选地,所述b的范围为,b≤30mm;优选地,所述b的范围为,b≥1mm;进一步地,所述b的范围为,2mm≤b≤15mm。通常情况下,凹槽间距区域即为电致变色膜片的导电基底、电致变色层等未被切割的区域,在这些区域出现褶皱的几率更大,且褶皱程度更加严重,当凹槽间距b的取值过大时,电致变色膜片的褶皱更加明显或严重;而凹槽区域对应会暴露导电基底的导电表面,例如第一凹槽可以暴露第二导电基底的导电表面,第二凹槽可以暴露第一导电基底的导电表面,因此,当凹槽之间的间距b取值过小时,容易导致两侧导电表面的电连接,从而形成短路。由此,通过限定凹槽间距b的范围,可以有效减小或避免褶皱,也可以进一步避免电致变色膜片形成短路,提升膜片的美观度或使用安全性和可靠性。
可选地,所述a与所述b的比值为a/b,其中,5≤a/b;优选地,所述a与所述b的比值为a/b,其中,5≤a/b≤50;进一步地,所述a与所述b之和满足以下关系式,90mm≤a+b≤750mm。在这种情况下,通过进一步地增大凹槽的宽度a或进一步减小凹槽间距b,可以进一步提升褶皱缓解的效果,或进一步减小褶皱产生量,从而进一步减小或避免电致变色膜片上褶皱的产生,以满足不同应用场景下,对电致变色膜片的褶皱程度的要求,进一步提升电致变色膜片的美观度。
可选地,所述第一导电基底的厚度和所述第二导电基底的厚度均不小于120um;进一步地,所述第一导电基底的厚度和所述第二导电基底的厚度均不小于150um。由此,通过使导电基底的厚度值满足特定大小,可以进一步提升对电致变色膜片的褶皱缓解效果,进一步提升电致变色膜片的美观度。
可选地,所述电致变色膜片沿第一方向的拱高为H1,所述电致变色膜片沿第二方向的拱高为H2,其中,所述H1与所述H2之乘积满足以下关系式,H1×H2≤2500mm2;优选地,所述第一方向垂直于所述第二方向。在一些应用场景下,电致变色膜片可能发生多个方向的弯曲,例如两个方向的弯曲使电致变色膜片形成双曲面结构,例如沿第一方向上弯曲形成拱高H1,沿第二方向上弯曲形成拱高H2,通过限定两个方向的拱高乘积在特定范围内,尤其是进一步限定两个方向互相垂直的情况下,可以更进一步地提升褶皱缓解的效果,进一步提升电致变色膜片的美观度。
可选地,所述第一凹槽的深度和所述第二凹槽的深度均为h,0<h≤100mm;优选地, 所述h的范围为,20mm≤h≤80mm。通常情况下,凹槽的深度过小,其暴露的导电基底的导电表面较少,不利于导电基底上的导电引出;凹槽的深度过大,被切割去除的电致变色层越宽,使得电致变色膜片的变色区域变窄;因此,将凹槽的深度限定在一定的范围内,既能保证有足够的导电表面便于导电引出,又能保证电致变色膜片具有足够宽的变色区域,提升膜片的实用面积。
本申请另一方面还提供一种变色玻璃,包括玻璃层和上述的电致变色膜片;所述电致变色膜片层叠在至少两层所述玻璃层之间。由此,通过将电致变色膜片层叠在玻璃层之间,玻璃层可以对电致变色膜片起到较好的夹持作用,可以进一步防止或减少电致变色膜片的褶皱发生,从而提升变色玻璃整体的美观度。
有益效果
本申请的方案具有如下优点:通过调节第一凹槽和第二凹槽的宽度及相邻的第一凹槽和第二凹槽之间的间距,以通过第一凹槽和第二凹槽为电致变色膜片的边缘提供弯折的空间余量,以大大减小或避免电致变色膜片的边缘产生褶皱,从而提高电致变色膜片的美观性,提升用户的视觉体验。
为使本申请的上述目的、特征和优点能更明显和易懂,下文特举较佳实施例,并配合所附附图,做详细说明如下。
附图说明
为了更清楚地说明本申请实施例的技术方案,下面将对实施例中所需要使用的附图作简单地介绍,应当理解,以下附图仅示出了本申请的某些实施例,因此不应被看作是对范围的限定,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他相关的附图。
图1示出了本申请的一些实施例提供的一种电致变色膜片的一视角的结构示意图;
图2示出了本申请的一些实施例提供的一种电致变色膜片的另一视角的结构示意图;
图3示出了本申请的一些实施例提供的一种电致变色膜片中电致变色层的一视角的结构示意图;
图4示出了本申请的一些实施例提供的一种电致变色膜片中第一导电基底的一视角的结构示意图;
图5示出了本申请的一些实施例提供的一种电致变色膜片中第二导电基底的一视角的结构示意图;
图6示出了本申请的一些实施例提供的一种电致变色膜片其他结构的一视角的结构示意图;
图7示出了图6中A-A部的剖视图;
图8示出了图7中B部的放大图。
主要元件符号说明:
100-电致变色膜片;110-第一导电基底;120-电致变色层;130-第二导电基底;111-第一容纳槽;131-第二容纳槽;121-第三容纳槽;140-第一凹槽;150-第二凹槽;112-第一基底层;113-第一导电层;132-第二基底层;133-第二导电层;200-第一汇流条;300-第二汇流条;400-密封胶。
本发明的实施方式
下面详细描述本申请的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,仅用于解释本申请,而不能理解为对本申请的限制。
需要说明的是,当元件被称为“固定于”另一个元件,它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件,它可以是直接连接到另一个元件或者可能同时存在居中元件。相反,当元件被称作“直接在”另一元件“上”时,不存在中间元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的。
在本申请中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请中的具体含义。
此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。
除非另有定义,本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在模板的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在限制本申请。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
如图1至图5所示,本申请的一些实施例提供一种电致变色膜片,主要应用于电致变色领域,例如应用于建筑窗户、汽车的车窗和飞机的窗户等。电致变色膜片100包括依次层叠的第一导电基底110、电致变色层120和第二导电基底130。
其中,第一导电基底110和第二导电基底130均完全覆盖于所述电致变色层120。
另外,所述第一导电基底110包括层叠的第一基底层112和第一导电层113,所述第一导电层113层叠在所述第一基底层112和所述电致变色层120之间。其中,第一导电层113完全覆盖于所述电致变色层120。
同时,所述第二导电基底130包括层叠的第二基底层132和第二导电层133,所述第二导电层133层叠在所述第二基底层132和所述电致变色层120之间。其中,第二导电层133完全覆盖于所述电致变色层120。
需要说明的是,第一导电层113和第二导电层133分别用于与外部电源连接。通过将第一导电层113和第二导电层133分别接入外部电源,以在第一导电层113和第二导电层133之间形成外加电场,从而使电致变色层120在外加电场的作用下发生稳定、可逆的颜色变化。
具体的,在所述第一导电基底110的边缘设有第一容纳槽111,所述第二导电基底130的边缘设有第二容纳槽131,所述电致变色层120的边缘设有至少两个第三容纳槽121。
需要说明的是,第一容纳槽111和第二容纳槽131均可以是一个、两个或两个以上任意数值的个数,可根据实际情况具体设定,且第三容纳槽121的数量可以是两个或两个以上任意数值的个数。
其中,第一容纳槽111可以设置在第一导电基底110的任意一侧。可选的,第一容纳槽111设置在第一导电基底110的至少两侧,即第一容纳槽111可以设置在第一导电基底110的任意两侧。可选的,在第一导电基底110的边缘的每一侧均设有第一容纳槽111。另外,第二容纳槽131可以设置在第二导电基底130的任意一侧。可选的,第二容纳槽131设置在第二导电基底130的至少两侧,即第二容纳槽131可以设置在第二导电基底130的任意两侧。可选的,在第二导电基底130的边缘的每一侧均设有第二容纳槽131。
如图3至图5所示,在本实施例中,所述第一容纳槽111的数量与第二容纳槽131的数量之和与第三容纳槽121的数量相等。
需要说明的是,所述第一容纳槽111在所述电致变色层120所在平面的正投影与至少一个所述第三容纳槽121重叠,且所述第一容纳槽111和所述第三容纳槽121连通形成第一凹槽。在本实施例中,一个第一容纳槽111与一个第三容纳槽121连通形成一个第一凹槽140。
同时,所述第二容纳槽131在所述电致变色层120所在平面的正投影与至少一个所述第三容纳槽121重叠,且所述第二容纳槽131和所述第三容纳槽121连通形成第二凹槽150。在本实施例中,一个第二容纳槽131与一个第三容纳槽121连通形成一个第二凹槽150。
具体的,所述第一凹槽140和所述第二凹槽150交错设置在所述电致变色膜片100的边缘。
优选的,如图1和图2所示,在本申请的一些实施例中,在第一凹槽140和第二凹槽150分别为多个,在电致变色膜片100边缘的每一侧设有至少一个第一凹槽140和至少一个第二凹槽150。具体的,第一凹槽140和第二凹槽150在电致变色层120所在平面的正投影相互间隔,即第一凹槽140和第二凹槽150在电致变色膜片100的边缘形成相互交错的凹槽结构。
其中,所述第一凹槽140的宽度和所述第二凹槽150的宽度均为a。
需要说明的是,第一凹槽140的宽度是指在垂直于电致变色膜片100厚度的方向上,且与电致变色膜片100边缘的一侧平行,位于该侧的第一凹槽140的长度。
第二凹槽150的宽度是指在垂直于电致变色膜片100厚度的方向上,且与电致变色膜片100边缘的一侧平行,位于该侧的第二凹槽150的长度。
任意相邻的所述第一凹槽140和所述第二凹槽150在所述电致变色层120所在平面的正投影之间的间距为b,b≤a。
可以理解的是,通过设置凹槽的宽度为a,凹槽之间的间距为b,通过增加凹槽的宽度a或减小凹槽间距的宽度b,使得凹槽宽度大于间距宽度,即a≥b,由此,在电致变色膜片弯折的过程中,可以通过宽度较大的凹槽为其提供弯折所需的足够的空间余量,或通过较小的凹槽间距减少凹槽间距区域的褶皱产生量,从而减小或避免电致变色膜片上褶皱的产生,尤其是电致变色膜片边缘褶皱的产生,由此提高电致变色膜片的美观度。
本申请的一些实施例中,所述b的范围为,b≤30mm。
需要说明的是,相邻的第一凹槽140和第二凹槽150之间的间距b>0。
其中,b的范围可以是,0<b≤30mm、0<b≤25mm、0<b≤20mm、0<b≤15mm、0<b≤10mm、0<b≤5mm、5≤b≤30mm、5≤b≤25mm、5≤b≤20mm、5≤b≤15mm、5≤b≤10mm、10≤b≤30mm、10≤b≤25mm、10≤b≤20mm、10≤b≤15mm、15≤b≤30mm、15≤b≤25mm、15≤b≤20mm、20≤b≤30mm、20≤b≤25mm和25≤b≤30mm中的任意一种。
本申请的一些实施例中,所述b的范围为,b≥1mm。可以理解的是,相邻的第一凹槽140和第二凹槽150之间的间距b可以是大于1的任意值。
可选的,在本申请的一些实施例中,所述b的范围为,2mm≤b≤15mm。
其中,b的范围可以是,2mm≤b≤15mm、3mm≤b≤15mm、4mm≤b≤15mm、5mm≤b≤15mm、6mm≤b≤15mm、7mm≤b≤15mm、8mm≤b≤15mm、9mm≤b≤15mm、10mm ≤b≤15mm、11mm≤b≤15mm、12mm≤b≤15mm、13mm≤b≤15mm、14mm≤b≤15mm、2mm≤b≤14mm、2mm≤b≤13mm、2mm≤b≤12mm、2mm≤b≤11mm、2mm≤b≤10mm、2mm≤b≤9mm、2mm≤b≤8mm、2mm≤b≤7mm、2mm≤b≤6mm、2mm≤b≤5mm、2mm≤b≤4mm、2mm≤b≤3mm、3mm≤b≤14mm、5mm≤b≤13mm、6mm≤b≤12mm、7mm≤b≤11mm、8mm≤b≤10mm中的任意范围。
可选的,在本申请的一些实施例中,所述a与所述b的比值为a/b,5≤a/b。需要说明的是,所述a与所述b的比值a/b可以是大于或等于5的任意数值,可根据实际情况具体设定。
具体的,通过增加第一凹槽140和第二凹槽150的宽度a与相邻的第一凹槽140和第二凹槽150之间的间距b之间的比值,以改善电致变色膜片100的褶皱深度。
可选的,在本申请的一些实施例中,所述a与所述b的比值为a/b,5≤a/b≤50。
需要说明的是,所述a与所述b的比值a/b的范围可以是5≤a/b≤50、5≤a/b≤45、5≤a/b≤40、5≤a/b≤35、5≤a/b≤30、5≤a/b≤25、5≤a/b≤20、5≤a/b≤50、5≤a/b≤15、5≤a/b≤10、10≤a/b≤50、10≤a/b≤45、10≤a/b≤40、10≤a/b≤35、10≤a/b≤30、10≤a/b≤25、10≤a/b≤20、10≤a/b≤15、15≤a/b≤50、15≤a/b≤45、15≤a/b≤40、15≤a/b≤35、15≤a/b≤30、15≤a/b≤25、15≤a/b≤20、20≤a/b≤50、20≤a/b≤45、20≤a/b≤40、20≤a/b≤35、20≤a/b≤30、20≤a/b≤25、25≤a/b≤50、25≤a/b≤45、25≤a/b≤40、25≤a/b≤35、25≤a/b≤30、30≤a/b≤50、30≤a/b≤45、30≤a/b≤40、30≤a/b≤35、35≤a/b≤50、35≤a/b≤45、35≤a/b≤40、40≤a/b≤50、40≤a/b≤45和45≤a/b≤50中的任意范围。
优选地,所述a与所述b之和满足以下关系式,90mm≤a+b≤750mm。其中,a+b的范围可以是,90mm≤a+b≤750mm、100mm≤a+b≤750mm、150mm≤a+b≤750mm、150mm≤a+b≤700mm、150mm≤a+b≤650mm、150mm≤a+b≤600mm、150mm≤a+b≤550mm、150mm≤a+b≤500mm、150mm≤a+b≤450mm、150mm≤a+b≤400mm、150mm≤a+b≤350mm、150mm≤a+b≤300mm、150mm≤a+b≤250mm、150mm≤a+b≤200mm、200mm≤a+b≤750mm、200mm≤a+b≤700mm、200mm≤a+b≤650mm、200mm≤a+b≤600mm、200mm≤a+b≤550mm、200mm≤a+b≤500mm、200mm≤a+b≤450mm、200mm≤a+b≤400mm、200mm≤a+b≤350mm、200mm≤a+b≤300mm、200mm≤a+b≤250mm、250mm≤a+b≤750mm、300mm≤a+b≤750mm、350mm≤a+b≤750mm、400mm≤a+b≤750mm、450mm≤a+b≤750mm、500mm≤a+b≤750mm、550mm≤a+b≤750mm、600mm≤a+b≤750mm、650mm≤a+b≤750mm和700mm≤a+b≤750mm中的任意范围。
需要说明的是,在本实施例中,a/b的范围可以是上述范围中的任意一个范围,a+b的范围可以是上述范围中的任意一个范围。
表1-电致变色膜片褶皱深度变化
需要说明的是,在表1中,第一导电基底的厚度和第二导电基底的厚度均为188μm。
表1中的对比例示出了,当b>a且b>30时,电致变色膜片100边缘的褶皱变化情况。
具体的,在表1的对比例中,当a=50mm时,随着b的数值由80减小到60的过程中,电致变色膜片100的褶皱深度值也在逐渐减小。可以理解的是,当第一凹槽140和第二凹槽150的宽度不变的情况下,随着相邻的第一凹槽140和第二凹槽150之间的间距逐渐减小,电致变色膜片100的褶皱深度逐渐减小。
需要说明的是,虽然在表1的对比例中,电致变色膜片100的褶皱深度随着b的减小而减小,但褶皱深度不小于48mm,仍然处于一个较大值,即在对比例中,通过调整相邻的第一凹槽140和第二凹槽150之间的间距b,对电致变色膜片100边缘的褶皱深度改善效果不大。
另外,在表1的实施例示出了,当b≤a,且1≤b≤30时,电致变色膜片100边缘的褶皱变化情况。
具体的,在表1的实施例中,当a=88时,随着b的数值由30减小到5的过程中,电致变色膜片100的褶皱深度值由40mm逐渐减小到19mm。需要说明的是,在表1的实施例中,随着b的变化,电致变色膜片100的褶皱深度值均小于对比例中电致变色膜片100的褶皱深度,即在表1的实施例中,当a=88时,通过减小b的数值,能够明显改善电致变色膜片的褶皱深度。
另外,在表1的实施例中,当b由8减小到5时,电致变色膜片100的褶皱深度变化由21mm减小到19mm。可以理解的是,此时,电致变色膜片100的褶皱深度变化较小,即当b不大于8时,随着b值的减小,对电致变色膜片的褶皱深度改善效果不明显。
因此,从表1中可知,在本实施例中,当a=88,5≤b≤8时,对电致变色膜片100的 褶皱深度改善效果最佳。即第一导电基底110的厚度和第二导电基底130的厚度均为188μm,且a=88,5≤b≤8时,对电致变色膜片的褶皱深度的改善最佳。
优选的,在本申请的一些实施例中,第一导电基底110的厚度和第二导电基底130的厚度均为188μm,b=8mm且a=88mm,此时,电致变色膜片的褶皱改善最佳。
表2-电致变色膜片褶皱深度变化
需要说明的是,在表2中,第一凹槽140的宽度和第二凹槽150的宽度均为88mm,即a=88mm,相邻的第一凹槽140和第二凹槽150的间距为8mm,即b=8mm。
表2中的对比例中示出了,第一导电基底110的厚度和第二导电基底130的厚度均逐渐增加时,电致变色膜片100边缘的褶皱深度的变化情况。
具体的,当第一导电基底110的厚度和第二导电基底130的厚度均从60μm逐渐增加到100μm时,电致变色膜片100边缘的褶皱深度由130mm减小到120mm。可以理解的是,厚度的变化量大于褶皱深度的变化量,此时,第一导电基底110的厚度和第二导电基底130的厚度的变化对于电致变色膜片100的褶皱深度的改善较小。
表2中的实施例中示出了,第一导电基底110的厚度和第二导电基底130的厚度由125μm逐渐增加到188μm时,电致变色膜片100边缘的褶皱深度由110mm减小到21mm。其中,电致变色膜片100的厚度变化量为63μm,电致变色膜片100的褶皱深度变化量约为89mm,电致变色膜片100的厚度变化量与褶皱深度变化量的比值约为0.7,且小于1,即通过增加电致变色膜片的厚度能够明显的改善其褶皱。
同时,表2的实施例中电致变色膜片100的褶皱深度均小于表2中对比例的电致变色膜片100的褶皱深度。可以理解的是,随着第一导电基底110和第二导电基底130厚度的逐渐增加,对电致变色膜片的褶皱深度越来越小,并且具有非常明显的改善。
另外,表2中的实施例中示出了,第一导电基底110的厚度和第二导电基底130的厚度由188μm逐渐增加到400μm时,电致变色膜片的褶皱深度由21mm减小到小于15mm。需要说明的是,电致变色膜片100的厚度变化量为212μm,电致变色膜片100的褶皱深度 变化量约为6mm,电致变色膜片100的厚度变化量与褶皱深度变化量的比值约为35,远远大于1。此时,电致变色膜片100厚度的变化对其褶皱的改善效果非常小。
可以理解的是,当第一导电基底110的厚度和第二导电基底130的厚度分别达到188μm时,对继续增加其厚度对电致变色膜片的褶皱深度无明显的改善。
因此,从表2中可知,当a=88mm,b=8,且第一导电基底110的厚度和第二导电基底130的厚度分别为188μm时,对电致变色膜片100的褶皱深度改善效果最佳。
优选的,在本申请的一些实施例中,所述第一导电基底110的厚度和所述第二导电基底130的厚度均不小于120um。可以理解的是,第一导电基底110的厚度和第二导电基底130的厚度均可以是大于或等于120um的任意数值,可根据实际情况具体设定。
具体的,从上述的表2中可知,当第一导电基底110的厚度和第二导电基底130的厚度均在120um至150um之间时,随着厚度的增加,电致变色膜片100的褶皱深度逐渐减小,但其褶皱深度均不小于60mm,仍然处于一个较大的褶皱值。可以理解的是,在此厚度区间中,电致变色膜片100的褶皱深度得到了改善。
更优选的,在本申请的一些实施例中,所述第一导电基底110的厚度和所述第二导电基底130的厚度均不小于150um。可以理解的是,第一导电基底110的厚度和第二导电基底130的厚度均可以是大于或等于150um的任意数值,可根据实际情况具体设定。
从上述的表2中可知,当第一导电基底110的厚度和第二导电基底130的厚度均在150um至188um之间时,电致变色膜片100的褶皱深度由60减小到19,随着厚度的变化量为38,电致变色膜片100的褶皱深度变化量为41,厚度的变化量与褶皱深度的变化量的比值约为0.926,小于1。可以理解的是,第一导电基底110和第二导电基底130在此厚度区间时,电致变色膜片100的褶皱深度逐渐减小,并逐渐减小到19mm,此时,电致变色膜片100的褶皱深度减小到了一个较小值。可以理解的是,在此厚度区间中,电致变色膜片100的褶皱深度得到了进一步的改善。
在本申请的一些实施例中,所述电致变色膜片100沿第一方向的拱高为H1,所述电致变色膜片100沿第二方向的拱高为H2。其中,所述H1与所述H2之乘积满足以下关系式,H1×H2≤2500mm2
具体的,拱高H1是指长度为一米的电致变色膜片100沿第一方向的弯曲高度,拱高H2是指长度为一米电致变色膜片100沿第二方向的弯曲高度。
其中,所述第一方向垂直于所述第二方向。另外,第一方向和第二方向分别与电致变色膜片100的厚度方向垂直。
需要说明的是,H1×H2≤2500mm2是指在电致变色膜片100中的每一平方米中电致变 色膜片沿第一方向的拱高H1与电致变色膜片沿第二方向的拱高H2之间的乘积范围,H1×H2≤2500mm2
具体的,H1×H2的范围可以是H1×H2≤2500mm2、H1×H2≤2400mm2、H1×H2≤2300mm2、H1×H2≤2200mm2、H1×H2≤2100mm2、H1×H2≤2000mm2、H1×H2≤1900mm2、H1×H2≤1800mm2、H1×H2≤1700mm2、H1×H2≤1600mm2、H1×H2≤1500mm2、H1×H2≤1400mm2、H1×H2≤1300mm2、H1×H2≤1200mm2、H1×H2≤1100mm2、H1×H2≤1000mm2、H1×H2≤900mm2、H1×H2≤800mm2、H1×H2≤700mm2、H1×H2≤600mm2、H1×H2≤500mm2、H1×H2≤400mm2、H1×H2≤300mm2、H1×H2≤200mm2和H1×H2≤100mm2中的任意范围。
通过减小电致变色膜片100在第一方向和第二方向上的拱高,以缓解电致变色膜片100边缘的产生的褶皱或消除电致变色膜片100的边缘产生的褶皱,从而提升电致变色膜片100的美观性。
另外,在本申请的一些实施例中,所述第一凹槽的深度和所述第二凹槽的深度均为h,0<h≤100mm。
需要说明的是,第一凹槽140的深度与第一导电基底110的厚度和电致变色层120的厚度之和相等,第二凹槽150的深度与第二导电基底130的厚度和电致变色层120的厚度之和相等。
在本申请的一些实施例中,由于第一导电基底110的厚度与第二导电基底130的厚度相等,因此第一凹槽140的深度与第二凹槽150的深度相等。
具体的,h的取值范围可以是0<h≤100mm、10mm<h≤100mm、20mm<h≤100mm、30mm<h≤100mm、40mm<h≤100mm、50mm<h≤100mm、60mm<h≤100mm、70mm<h≤100mm、80mm<h≤100mm、90mm<h≤100mm、0<h≤90mm、10mm<h≤90mm、20mm<h≤90mm、30mm<h≤90mm、40mm<h≤90mm、50mm<h≤90mm、60mm<h≤90mm、70mm<h≤90mm、80mm<h≤90mm、0<h≤80mm、10mm<h≤80mm、20mm<h≤80mm、30mm<h≤80mm、40mm<h≤80mm、50mm<h≤80mm、60mm<h≤80mm、70mm<h≤80mm、0<h≤70mm、10mm<h≤70mm、20mm<h≤70mm、30mm<h≤70mm、40mm<h≤70mm、50mm<h≤70mm、60mm<h≤70mm、0<h≤60mm、10mm<h≤60mm、20mm<h≤60mm、30mm<h≤60mm、40mm<h≤60mm、50mm<h≤60mm、0<h≤50mm、10mm<h≤50mm、20mm<h≤50mm、30mm<h≤50mm、40mm<h≤50mm、0<h≤40mm、10mm<h≤40mm、20mm<h≤40mm、30mm<h≤40mm、0<h≤30mm、10mm<h≤30mm、20mm<h≤30mm、0<h≤20mm、10mm<h≤20mm和0<h≤10mm中的任意范围,可根 据实际情况具体限定。
可以理解的是,在本申请的一些实施例中,第一凹槽140的深度和第二凹槽150的深度由第一导电基底110的厚度、第二导电基底130的厚度和电致变色层120的厚度决定的,即通过增加或减小第一导电基底110的厚度、第二导电基底130的厚度和电致变色层120的厚度,以增加或减小第一凹槽140的深度和第二凹槽150的深度。
在本申请的一些实施例中,所述的电致变色膜片100的形状可以为多边形、正多边形或异形中的任意一种,可根据实际情况具体设定。
其中,电致变色膜片100的a的取值可以对应一个数值、两个数值或多个数值。需要说明的是,当电致变色膜片100的a只对应一个数值时,即每一个第一凹槽140的宽度和每一个第二凹槽150的宽度均相等。
当a的取值对应为两个数值,并将a对应的两个数值分别定义为a1和a2,其中,a1≠a2,且a1和a2的取值范围与a的取值范围相等。即第一凹槽140的宽度和第二凹槽150的宽度可以是a1和a2中的任意值。
当a的取值对应为多个数值,并将a对应的多个数值分别定义为a1、a2……an,其中,n的取值可以是大于2的任意数值的整数,且an的取值范围与a的取值范围相等。
可以理解的是,第一凹槽140的取值可以是a1、a2……an中的任意值,且第二凹槽150的取值可以是a1、a2……an中的任意值,可根据实际情况具体设定。
另外,电致变色膜片100的b的取值可以对应一个数值或多个数值。需要说明的是,当电致变色膜片100的b只对应一个数值时,即任意相邻的所述第一凹槽140和所述第二凹槽150在所述电致变色层120所在平面的正投影之间的间距均相等。
当b的取值对应为多个数值,并将b对应的多个数值分别定义为b1、b2……bn,其中,n的取值可以是不小于2的任意数值的整数,另外,bn的取值范围与b的取值范围相等。即任意相邻的所述第一凹槽140和所述第二凹槽150在所述电致变色层120所在平面的正投影之间的间距均可以是b1、b2……bn中的任意值,可根据实际情况具体设定。
本申请中所述的电致变色膜片100的褶皱深度均是指电致变色膜片100的边缘的褶皱深度。
如图6至图8所示,本申请的一些实施例中,在每一个所述第一凹槽140的周向和每一个所述第二凹槽150的周向分别设有密封胶400。
通过设置在第一凹槽140周向的封胶层将第二导电基底130固定,同时将与第一凹槽140相对的电致变色层120与外部的空气和水隔开,通过设置在第二凹槽150周向的封胶层将第一导电基底110固定,同时将与第二凹槽150相对的电致变色层120与外部的空气 和水隔开,防止外界水氧进入电致变色膜片100,以提升电致变色膜片100的使用寿命和使用稳定性。
需要说明的是,所述密封胶400为高温胶,高温胶主要以硅铝酸盐、无机陶瓷粉等成分制成的一种满足不同耐温需求的高温胶水,耐温从200度到1800度。
如图7所示,本申请的一些实施例中,所述第一导电基底110远离所述电致变色层120的一侧的边缘设有第一汇流条200,所述第一汇流条200层叠在所述第一导电基底110远离电致变色层120的一侧的边缘。
具体的,所述第一汇流条200的一部分位于所述第一凹槽140中,且位于第一凹槽140中的第一汇流条200在第一凹槽140中形成“凹”字形,位于第一凹槽140中的第一汇流条200的一部分与第一凹槽140的内壁上的密封胶400贴合,以通过密封胶400将第一汇流条200固定,提高第一汇流条200在第一导电基底110上的稳定性。另外,部分位于第一凹槽140的底部的第一汇流条200与所述第二导电层133暴露在第一凹槽140中的一部分电连接。同时,通过密封胶400可以对第一汇流条200和第二汇流条300起到绝缘支撑的作用,避免第一汇流条200和第二汇流条300之间的电接触,从而避免电致变色膜片100短路的情况的发生。
同时,在所述第二导电基底130远离所述电致变色层120的一侧的边缘设有第二汇流条300,所述第二汇流条300层叠在所述第二导电基底130远离电致变色层120的一侧的边缘。
具体的,所述第二汇流条300的一部分位于所述第二凹槽150中,且位于第二凹槽150中的第二汇流条300在第二凹槽150中形成“凹”字形,位于第二凹槽150中的第二汇流条300的一部分与第二凹槽150的内壁上的密封胶400贴合,以通过密封胶400将第一汇流条200固定,提高第一汇流条200在第一导电基底110上的稳定性。另外,部分位于第二凹槽150的底部的第二汇流条300与所述第一导电层113暴露在第二凹槽150中的一部分电连接。
需要说明的是,通过在电致变色膜片的边缘设置多个第一凹槽和多个第二凹槽,可以更加均匀地分配电致变色膜片的电连接点,使电传导至第一导电基底和第二导电基底层上的均匀度提高。通过将第一汇流条200和第二汇流条300分别与外部电源连接,以在第一导电层113和第二导电层133之间形成外加电场,以提高电致变色膜片100的变色效率和稳定性。
本申请的其他实施例还提供一种变色玻璃,包括玻璃层和上述任意一项实施例中所述的电致变色膜片100。
其中,所述电致变色膜片100层叠在至少两层所述玻璃层之间。
在本实施例中,电致变色膜片100层叠在两层玻璃层之间,以形成变色玻璃。
需要说明的是,两层玻璃层完全覆盖于电致变色膜片100。
在这里示出和描述的所有示例中,任何具体值应被解释为仅仅是示例性的,而不是作为限制,因此,示例性实施例的其他示例可以具有不同的值。
应注意到:相似的标号和字母在下面的附图中表示类似项,因此,一旦某一项在一个附图中被定义,则在随后的附图中不需要对其进行进一步定义和解释。
以上所述实施例仅表达了本申请的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对本申请范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本申请构思的前提下,还可以做出若干变形和改进,这些都属于本申请的保护范围。

Claims (10)

  1. 一种电致变色膜片,其特征在于,包括依次层叠的第一导电基底、电致变色层和第二导电基底;
    所述第一导电基底的边缘设有第一容纳槽,所述第二导电基底的边缘设有第二容纳槽,所述电致变色层的边缘设有至少两个第三容纳槽;
    所述第一容纳槽在所述电致变色层所在平面的正投影与至少一个所述第三容纳槽重叠,且所述第一容纳槽和所述第三容纳槽连通形成第一凹槽;
    所述第二容纳槽在所述电致变色层所在平面的正投影与至少一个所述第三容纳槽重叠,且所述第二容纳槽和所述第三容纳槽连通形成第二凹槽;
    所述第一凹槽和所述第二凹槽交错设置在所述电致变色膜片的边缘;
    所述第一凹槽的宽度和所述第二凹槽的宽度均为a,任意相邻的所述第一凹槽和所述第二凹槽在所述电致变色层所在平面的正投影之间的间距为b,其中,b≤a。
  2. 根据权利要求1所述的电致变色膜片,其特征在于,所述b的范围为,b≤30mm。
  3. 根据权利要求1所述的电致变色膜片,其特征在于,所述b的范围为,b≥1mm。
  4. 根据权利要求1所述的电致变色膜片,其特征在于,所述b的范围为,2mm≤b≤15mm。
  5. 根据权利要求1所述的电致变色膜片,其特征在于,所述a与所述b的比值为a/b,其中,5≤a/b。
  6. 根据权利要求1所述的电致变色膜片,其特征在于,所述a与所述b的比值为a/b,其中,5≤a/b≤50;
    优选地,所述a与所述b之和满足以下关系式,90mm≤a+b≤750mm。
  7. 根据权利要求1所述的电致变色膜片,其特征在于,所述第一导电基底的厚度和所述第二导电基底的厚度均不小于120um。
  8. 根据权利要求1所述的电致变色膜片,其特征在于,所述电致变色膜片沿第一方向的拱高为H1,所述电致变色膜片沿第二方向的拱高为H2,其中,
    所述H1与所述H2之乘积满足以下关系式,H1×H2≤2500mm2,且所述第一方向垂直于所述第二方向。
  9. 根据权利要求1所述的电致变色膜片,其特征在于,所述第一凹槽的深度和所述第二凹槽的深度均为h,其中,0<h≤100mm。
  10. 一种变色玻璃,其特征在于,包括玻璃层和权利要求1~9任意一项所述的电致变色膜片;
    所述电致变色膜片层叠在至少两层所述玻璃层之间。
PCT/CN2023/084715 2022-06-16 2023-03-29 一种电致变色膜片及变色玻璃 WO2023241168A1 (zh)

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