WO2022028903A1 - Procédé de mise en contact électrique d'une électrode plate d'un élément fonctionnel ayant des propriétés optiques pouvant être commandées électriquement - Google Patents

Procédé de mise en contact électrique d'une électrode plate d'un élément fonctionnel ayant des propriétés optiques pouvant être commandées électriquement Download PDF

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Publication number
WO2022028903A1
WO2022028903A1 PCT/EP2021/070481 EP2021070481W WO2022028903A1 WO 2022028903 A1 WO2022028903 A1 WO 2022028903A1 EP 2021070481 W EP2021070481 W EP 2021070481W WO 2022028903 A1 WO2022028903 A1 WO 2022028903A1
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WO
WIPO (PCT)
Prior art keywords
carrier film
functional element
surface electrode
section
active layer
Prior art date
Application number
PCT/EP2021/070481
Other languages
German (de)
English (en)
Inventor
Alexandre FESSEMAZ
Sofia TRABA MENDEZ
Nadine HECKER
Huixing Zhang
Original Assignee
Saint-Gobain Glass France
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint-Gobain Glass France filed Critical Saint-Gobain Glass France
Priority to CN202180003187.9A priority Critical patent/CN114364530A/zh
Publication of WO2022028903A1 publication Critical patent/WO2022028903A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
    • B32B17/10467—Variable transmission
    • B32B17/10495—Variable transmission optoelectronic, i.e. optical valve
    • B32B17/10504—Liquid crystal layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal

Definitions

  • the invention relates to a method for electrically contacting a surface electrode of a functional element with electrically controllable optical properties.
  • Functional elements with electrically controllable optical properties are used in the industrial production of glazing units.
  • Such glazing units are often composite panes in which a functional element is embedded.
  • the composite panes consist of at least one outer pane, one inner pane and an adhesive intermediate layer that connects the outer pane to the inner pane over a large area.
  • the functional element is cut out of a multi-layer film in the desired size and shape and placed between the films of the intermediate layer.
  • Typical intermediate layers are polyvinyl butyral films, which, in addition to their adhesive properties, have high toughness and high acoustic damping.
  • the intermediate layer prevents the laminated glass pane from disintegrating in the event of damage.
  • the composite pane only gets cracks, but remains dimensionally stable.
  • Composite panes with electrically controllable optical properties are known from the prior art.
  • Such compound panes contain a functional element, which typically contains an active layer between two surface electrodes.
  • the optical properties of the active layer can be changed by applying a voltage to the surface electrodes.
  • electrochromic functional elements which are known, for example, from US 20120026573 A1 and WO 2012007334 A1.
  • SPD functional elements Suspended Particle Device
  • PDLC functional elements Polymer Dispersed Liquid Crystal
  • the applied voltage can be used to control the transmission of visible light through electrochromic or SPD/PDLC functional elements.
  • SPD and PDLC functional elements are commercially available as multilayer films.
  • the surface electrodes required to apply a voltage are arranged between two PET carrier foils. When manufacturing the glazing unit, this is done Functional element cut out of the multi-layer film and inserted between the films of the intermediate layer.
  • the surface electrodes can be electrically connected to a control module (ECU) via flat conductors outside the laminated pane.
  • the control module is provided for applying an electrical voltage between the surface electrodes.
  • a possible controllable functional element for realizing controllable sun visors is known from WO 2017/157626 A1.
  • the functional element is divided into segments by isolation lines.
  • the insulation lines are introduced in particular into surface electrodes of the functional element, so that the segments of the surface electrodes are electrically insulated from one another.
  • WO 2020/083562 A1 and WO 2020/083563 A1 propose a composite pane with a functional element that can be switched in segments.
  • WO 2020/143984 A1 discloses an unobstructed functional element with electrically controllable optical properties, which includes a protective film and a sealing film.
  • WO 2019/238520 A1 discloses a functional element with electrically controllable optical properties, wherein a first carrier film is folded around the edge of the second carrier film at a side edge and an exit surface of the active layer is sealed at the side edge.
  • the electrical contacting is a laborious step in the production of a composite pane with a functional element divided into several segments, since each segment has to be electrically contacted individually.
  • This is usually implemented using suitable connecting cables, for example foil conductors, which are connected to the surface electrodes via so-called bus bars, for example strips of an electrically conductive material or electrically conductive imprints (e.g. formed by a silver-containing screen print).
  • bus bars for example strips of an electrically conductive material or electrically conductive imprints (e.g. formed by a silver-containing screen print).
  • Contacting is done manually step by step and includes many work steps. This procedure is very time consuming.
  • the object of the present invention is to provide an improved method which reduces the time in the electrical contacting of a Can allow functional element and a great deal of freedom in the selection of the position of the contact.
  • the invention includes a method for electrically contacting a surface electrode of a functional element with electrically controllable optical properties, the functional element having a first carrier film, a first surface electrode, an active layer, a second surface electrode and a second carrier film arranged one on top of the other.
  • the method according to the invention comprises at least the following steps: a) the first carrier film is cut using a vertical laser beam, so that the carrier film is divided into a section to be separated and a remaining main part, b) the section of the carrier film is connected to the area (below) of the section and with at least partially the active layer arranged in the region (below) of the section removed, so that the first carrier foil and the first surface electrode form a common edge, c) the second surface electrode is cleaned by completely removing the active layer in the Area of the removed portion is removed so that an exposed horizontal surface of the surface electrode is exposed, and d) the second surface electrode is electrically contacted at the exposed surface.
  • the advantage of the method according to the invention is that the carrier film is not incised manually (no manual incision with a sharp object).
  • the use of a laser in step a) reduces the amount of work involved in producing contact surfaces and thus saves valuable working time in producing the functional elements with electrical contacts.
  • the cutting of the first carrier foil by means of a laser can take place automatically. The method is therefore very advantageous in particular for industrial mass production.
  • the coated carrier film also referred to as the substrate layer
  • the substrate layer can be easily removed.
  • Such a functional element comprises at least one active layer which is arranged between a first carrier film and a second carrier film.
  • the active layer has the variable optical properties that can be controlled by an electrical voltage applied to the active layer.
  • electrically controllable optical properties are understood to mean properties that can be continuously controlled, but equally also those that can be switched between two or more discrete states.
  • the optical properties relate in particular to the light transmission and/or the scattering behavior.
  • the functional element also includes a first carrier film and a second carrier film.
  • the first and second carrier films are, in particular, polymeric or thermoplastic films.
  • the composition and/or thickness of the first and second carrier foils can be the same or different.
  • the two carrier films are of the same composition. The following information on carrier films relates both to the first carrier film and to the second carrier film.
  • the carrier foils contain or consist of a thermoplastic material.
  • the thermoplastic material can be a thermoplastic polymer or a blend of two or more thermoplastic polymers.
  • the carrier film can also contain additives such as plasticizers.
  • the thermoplastic material of the carrier films is preferably polyethylene terephthalate (PET), as is customary for commercially available functional elements.
  • the thermoplastic material of the carrier film can also contain or consist of mixtures of PET with other thermoplastic polymers and/or copolymers of PET.
  • the thermoplastic material of the carrier foil can, for example, also contain or consist of PU, polypropylene, polycarbonate, polymethyl methacrylate, polyacrylate, polyvinyl chloride, polyacetate resin, fluorinated ethylene-propylene, polyvinyl fluoride and/or ethylene-tetrafluoroethylene.
  • the thickness of each support film is preferably in the range of 0.03 mm to 0.4 mm, more preferably 0.04 mm to 0.2 mm.
  • the functional element also includes surface electrodes for applying the voltage to the active layer, which are preferably arranged between the carrier foils and the active layer.
  • the surface electrodes are in the form of an electrically conductive coating on the carrier film.
  • the side of the carrier foil with the electrically conductive coating forming the flat electrode then faces the active layer.
  • the surface electrodes can be the same or different in terms of composition and/or thickness. The surface electrodes are mostly the same.
  • the carrier film can be cut at any position on its surface. The process allows free design of the contact surfaces.
  • the section can be removed at the same time as or after the cutting of the first carrier film.
  • the chronological sequence of method steps a) and b) should not be understood to mean that the laser irradiation along an entire cutting line must be completed before the section begins to be removed. Rather, while the laser beam is still moving across the cutting line, the removal of the areas of the cutting line that have already been separated from the laser beam can already begin.
  • the section can have any shape and size.
  • the section can be angular, oval or round, in particular square.
  • the section can preferably extend in the form of a strip along a side edge of the functional element.
  • the main part can completely enclose the section in the plane of the first carrier film.
  • the section is removed after the first carrier film has been cut.
  • the section is removed from the main part of the first carrier film by means of a suction device, in particular a suction cup.
  • the suction device starts on a first surface of the first carrier film in the area of the section.
  • the first surface of the first carrier foil is that surface of the first carrier foil which faces away from the first flat electrode.
  • the irradiation with a laser is preferably carried out from the direction facing the first surface, so that the laser beam before striking the first surface of the first carrier film does not have to penetrate the functional element.
  • the laser beam is focused on the first surface of the first carrier film.
  • a steering unit can be provided for steering the laser beam.
  • the steering unit is provided for steering the laser beam over the first carrier film so that a section is cut into the carrier film in order to remove the section of the carrier film.
  • the steering unit can have a scanner or an X-Y coordinate system. Any shape of the section can thus be lasered into the carrier film.
  • a scanning speed or coordinate system speed can be 0.1 m/s to 20 m/s, preferably 0.5 m/s to 10 m/s, particularly preferably 2 m/s to 5 m/s (meters per second).
  • the subsequent removal of the section leads to an exposed surface of the second surface electrode, since at the same time the first surface electrode and partially the active layer in the region of the section adhere to the section and are removed.
  • the exposed surface of the second flat electrode is cleaned by means of a laser beam and/or a cleaning agent, in particular acetone, and residues of the active layer are removed in the area exposed by the section.
  • the shape and size of the exposed surface corresponds to the shape and size of the removed portion of the first carrier film. Electrical contact is made with the second surface electrode at the exposed surface of the second surface electrode.
  • the flat electrodes are intended to be electrically connected to an external voltage source.
  • the flat electrode is preferably contacted by (ultrasonic) soldering, crimping or gluing.
  • a conductive material in particular a paste, or a soldering contact is applied to at least one of the surface electrodes in step d).
  • the paste contains silver or an alloy containing silver.
  • the conductive material is connected to the surface electrodes as so-called bus bars, for example strips of the electrically conductive material or electrically conductive imprints.
  • the surface electrodes can each be electrically contacted by means of a bus bar.
  • metal foil strips or metal wires are used, which preferably contain copper and/or aluminum, in particular copper foil strips with a thickness of about 50 ⁇ m are used.
  • the width of the copper foil strips is preferably 1 mm to 10 mm.
  • the Metal foil strips or metal wires are placed on the flat electrode in a composite of thermoplastic layers during further processing of the functional element. In the later autoclave process, a secure electrical contact between the busbars and the coating is achieved through the action of heat and pressure. Alternatively, the electrical contact between the surface electrode and the bus bar can be established by soldering or gluing with an electrically conductive adhesive.
  • the laser beam is generated by a CO2 laser.
  • the laser beam has a wavelength of 5 pm to 15 pm, preferably 10.6 pm.
  • the maximum power of the laser is preferably 120 W, the applied power being about 20 W to 50 W, preferably 25 W.
  • the laser has both a pulsed mode of operation and a continuous wave mode, with the pulsed mode being preferred.
  • the pulse length can be 2 ps to 400 ps, the pulse repetition frequency is preferably from 1000 Hz to 60,000 Hz, particularly preferably 2000 Hz.
  • the method according to the invention can be carried out on two opposite sides of the functional element, so that the second carrier film is also cut using the laser beam.
  • the second carrier film is divided into a section to be separated and a remaining main part.
  • the section of the second carrier film is removed together with the second surface electrode arranged in the area of the section and at least partially removed with the active layer arranged in the area of the section, so that the second carrier film and the second surface electrode form a common edge.
  • the surface of the first surface electrode is cleaned by completely removing the active layer in the area of the removed portion, so that an exposed horizontal surface of the first surface electrode is exposed.
  • the first surface electrode is electrically contacted on the exposed surface.
  • the collector conductors are attached to the surface electrodes in that the carrier film, a surface electrode and the active layer are cut out using the method according to the invention, so that the other surface electrode in each case protrudes with the associated carrier film. This can preferably be carried out along an edge area of the respective side of the functional element.
  • a busbar can then be attached to the protruding flat electrode.
  • a further busbar is attached to the other flat electrode in a corresponding manner.
  • a busbar is electrically conductive. It can also be formed, for example, by an electrically conductive metal strip or an electrically conductive coating, for example a print containing silver. Metal here includes metal alloys. A strip of copper or a copper alloy, for example, is also suitable.
  • the busbar designed as a metal strip can usually be connected to the flat electrode via an electrically conductive intermediate layer, for example a silver layer.
  • the functional element can be divided into segments by isolation lines.
  • the insulation lines are introduced into the surface electrodes, so that the segments of the surface electrode are electrically insulated from one another.
  • the individual segments can be connected to an external voltage source independently of one another via a connection area on the busbar, a stranded wire, a crimp, a conductor wire and/or a flat conductor, so that they can be controlled separately in the operating state.
  • a segment of the functional element has two connection areas. Each connection area has a contact that was produced using the method according to the invention. For example, different areas of the functional element, e.g. as a sun visor, can be switched independently.
  • the isolation lines and the segments are particularly preferably arranged parallel to one another.
  • the insulation lines do not necessarily have to be straight, but can also be slightly curved, preferably adapted to a possible bend in an edge of the laminated pane.
  • the functional element is a PDLC functional element, in particular one that switches at least one area of a glazing unit from a transparent to an opaque state and vice versa.
  • the active layer of a PDLC functional element contains liquid crystals embedded in a polymer matrix.
  • the functional element is a PNLC or SPD functional element.
  • SPD functional elements the active layer contains suspended particles, and the absorption of light by the active layer can be changed by applying a voltage to the surface electrodes.
  • the thickness of the functional element is, for example, from 0.09 mm to 1 mm.
  • the functional element can be in the form of rolled goods. Pieces of suitable size can then be cut out of the rolled goods.
  • the area of the suitably cut functional element according to the invention can vary widely and can thus be adapted to the requirements in the individual case.
  • the surface electrodes are preferably in the form of transparent, electrically conductive layers.
  • the surface electrodes preferably contain at least one metal, a metal alloy or a transparent conducting oxide (TCO).
  • the surface electrodes can contain, for example, silver, gold, copper, nickel, chromium, tungsten, indium tin oxide (ITO), gallium-doped or aluminum-doped zinc oxide and/or fluorine-doped or antimony-doped tin oxide.
  • the surface electrodes preferably have a thickness of 10 nm (nanometers) to 2 ⁇ m (micrometers), particularly preferably 20 nm to 1 ⁇ m, very particularly preferably 30 nm to 500 nm.
  • the invention also includes a functional element with electrically controllable optical properties, arranged at least one above the other in terms of surface area:
  • the invention also relates to a glazing unit comprising a first pane, a second pane and at least two intermediate layers between the first pane and the second pane, with a functional element according to the invention being arranged in a plane between the two intermediate layers.
  • FIG. 1 shows a schematic representation of a functional element as a multilayer film
  • FIG. 2 shows a plan view of an embodiment of a functional element according to the invention
  • FIG. 3 schematically shows an embodiment of the method according to the invention.
  • FIG. 4 shows a schematic representation of a functional element subdivided into segments.
  • FIG. 1 schematically shows a multilayer film 10 in cross section.
  • the multilayer film 10 can be used as a PDLC functional element 100 with a first carrier film 1 , a first surface electrode 2 , a PDLC active layer 3 , a second surface electrode 4 and a second carrier film 5 .
  • the PDLC active layer 3 is formed from a polymer matrix arranged between the two surface electrodes 2 and 4, in which liquid crystal droplets are embedded.
  • the surface electrodes 2 and 4 can be transparent ITO coatings.
  • the carrier films 1 and 5 can each be formed from a PET film.
  • Figure 2 shows a plan view of an embodiment of functional element 100 with bus bars 6a, 6b on two side edges of functional element 100.
  • the two busbars 6a and 6b are provided for electrically contacting the functional element 100 .
  • the busbars 6a and 6b run as two strips each along an edge of the active layer 3. It goes without saying that the busbars 6a and 6b are not or not only have to be arranged along a side edge of the active layer 3, but can be arranged arbitrarily.
  • the bus bars 6a and 6b collect and conduct the current flowing through the surface electrodes 2 and 4.
  • the busbars 6a and 6b are each arranged on the opposite carrier film 1 and 5.
  • a first busbar 6a is in the form of a narrow edge strip of the second surface electrode 4 and a second busbar 6b is in the form of a narrow edge strip of the first surface electrode 2 .
  • the busbars 6a, 6b are connected to the surface electrodes 2, 4 in that the first carrier film 1, the first surface electrode 2 and the active layer 3 are recessed along an edge region of the respective side of the functional element using the method according to the invention, so that the second (other ) surface electrode with the associated carrier foil.
  • the busbar 6a is arranged on the protruding, second flat electrode 4 .
  • a further busbar 6b is attached to the first flat electrode 2 in a corresponding manner.
  • the busbars 6a and 6b are significantly thicker than the flat electrodes 2 and 4, so that the actual conditions cannot be represented to scale.
  • the busbars 6a and 6b can each be connected to a voltage source via a flat conductor 12, which extends from the busbars 6a, 6b over a side edge of the functional element 100.
  • Flexible flat conductors sometimes also called foil conductors or ribbon conductors, preferably consist of a tinned copper strip with a thickness of 0.03 mm to 0.1 mm and a width of 2 mm to 16 mm. Copper has proven itself for such conductor tracks because it has good electrical conductivity and good processing properties to form foils. At the same time, the material costs are low.
  • Other electrically conductive materials that can be processed into foils can also be used. Examples are aluminum, gold, silver or tin and alloys thereof.
  • the functional element 100 is connected to a voltage source via the two electrically conductive surface electrodes 2 and 4 .
  • the circuit can be closed (ON mode) and opened (OFF mode).
  • ON mode switching on or transparent mode
  • an electric field is applied to the surface electrodes and thus also to the active layer 3
  • the liquid crystals of the active layer 3 align in an orderly manner, and incident light is hardly scattered, resulting in a transparent PDLC shift leads.
  • the electric current is off (off or opaque mode)
  • the liquid crystals of the active layer 3 are random aligned so that incident light is scattered and the PDLC active layer 3 becomes opaque.
  • Figure 3 shows a schematic of an embodiment of the method according to the invention based on a vertical longitudinal section of the first carrier foil 1 in the edge region of the functional element 100. To illustrate the method, Figure 3 shows intermediate stages in the production of the electrical contacting of the functional element 100 from Figure 2.
  • the multilayer film 10 explained in more detail in FIG. 1 was used.
  • the first carrier film 1 is cut with a vertical laser beam 7 at a distance from the edge of the first carrier film 1 to the surface of the first flat electrode 2, so that the carrier film 1 is divided into a section 8 to be separated and a remaining main section 9.
  • the section 8 has a rectangular shape.
  • the laser beam 7 is generated by a CO2 laser.
  • the laser beam 7 has a wavelength of 10.6 pm.
  • the power of the laser is 25 W.
  • the pulse length can be 2 ps to 400 ps, the pulse repetition frequency is 2000 Hz.
  • the section 8 of the carrier foil 1 is removed together with the first surface electrode 2 arranged in the area below the section 8.
  • the active layer 3 arranged in the area below the section 8 is also partially removed, so that the first carrier foil 1 and the first surface electrode 2 form a common first edge at a distance from the edge of the second carrier foil 5 .
  • the removal of the section 8 takes place after the first carrier film 1 has been cut.
  • the removal of the section 8 from the main part 9 of the first carrier film 1 is carried out by means of a suction cup.
  • the suction cup attaches to a first surface of the first carrier film 1 .
  • the first surface of the first carrier film 1 is that surface of the first carrier film which faces away from the first flat electrode 2 .
  • the surface of the second surface electrode 4 is cleaned by completely removing the active layer 3 in the area of the section 8 so that an exposed horizontal surface of the second surface electrode 4 is exposed.
  • the cleaning of the second surface electrode 4 in the area of the removed section 8 is carried out by means of a laser beam and/or acetone.
  • the second flat electrode 4 has a connection area in the area of the removed section 8 .
  • the flat electrode 4 is electrically conductively connected to the bus bar 6a in the connection area.
  • the task of the busbar 6a is to conduct the current into the surface electrode 4 as uniformly as possible.
  • the busbar 6a is strip-shaped and/or rectangular and extends along a first side edge of the flat electrode 4.
  • Method steps a) to d) can be repeated on the opposite edge of functional element 100 .
  • the second carrier film 5 is cut with a vertical laser beam 7 at a distance from the edge of the second carrier film 5 up to the surface of the second flat electrode 4, so that the second carrier film 5 is divided into a section 8 to be separated and a remaining main section 9.
  • the process steps of the process according to the invention are repeated analogously.
  • busbar 6a and 6b each is connected to a surface electrode 2, 4 in an electrically conductive manner.
  • the busbar 6a, 6b can be connected to a voltage source via the flat conductor 12, which extends from the busbar 6a or 6b over a side edge of the functional element 100.
  • FIG. 4 shows a functional element 100′ that has been divided into several segments 11.
  • the functional element 100 ′ is divided into segments 11 by isolation lines 13 .
  • the insulation lines 13 are introduced in particular into the surface electrodes 2 and 4, so that the segments 11 of the surface electrodes 2 and 4 are electrically insulated from one another.
  • the individual segments 11 can be connected to an external voltage source independently of one another via a connection area via a bus bar 6a, a conductor wire and/or the flat conductor 12, so that they can be controlled separately in the operating state.
  • a segment 11 of the functional element 100′ has two connection areas, each connection area being produced according to the method from FIG. For example, different areas of the functional element, such as a sun visor, can be switched independently.

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  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)

Abstract

L'invention concerne un procédé de mise en contact électrique d'une électrode plate (2, 4) d'un élément fonctionnel (100, 100') ayant des propriétés optiques pouvant être commandées électriquement, comprenant les éléments suivants, qui sont disposés à plat les uns sur les autres : - un premier film de support (1),- une première électrode plate (2),- une couche active (3),- une seconde électrode plate (4), et - un second film de support (5), a) le premier film de support (1) étant coupé au moyen d'un faisceau laser vertical (7) de telle sorte que le premier film de support (1) est divisé en une sous-pièce (8) à détacher et en une partie principale restante (9), b) la sous-pièce (8) du film de support (1) étant retirée conjointement avec la première électrode plate (2) disposée dans la région de la sous-pièce (8) et au moins partiellement conjointement avec la couche active (3) disposée dans la région de la sous-pièce (8) de telle sorte que le premier film de support (1) et la première électrode plate (2) forment un bord commun, c) la seconde électrode plate (4) étant nettoyée en ce sens que la couche active (3) est complètement retirée dans la région de la sous-pièce retirée (8) de telle sorte qu'une surface horizontale exposée de l'électrode plate (4) est découverte, et d) la seconde électrode plate (4) étant mise en contact électrique sur la surface exposée.
PCT/EP2021/070481 2020-08-06 2021-07-22 Procédé de mise en contact électrique d'une électrode plate d'un élément fonctionnel ayant des propriétés optiques pouvant être commandées électriquement WO2022028903A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202180003187.9A CN114364530A (zh) 2020-08-06 2021-07-22 用于电接触具有电可控光学特性的功能元件的平面电极的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20189727 2020-08-06
EP20189727.9 2020-08-06

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DE102022134124A1 (de) 2022-12-20 2024-06-20 Webasto SE Verfahren zur Vorbereitung eines PDLC-Rohlings

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EP0876608B1 (fr) 1995-11-27 2002-04-17 Fuhr, Günter Procede et dispositif de production de phenomenes de resonance dans des suspensions de particules
WO2011033313A1 (fr) 2009-09-18 2011-03-24 Pilkington Group Limited Vitrage feuilleté
WO2012007334A1 (fr) 2010-07-13 2012-01-19 Saint-Gobain Glass France Dispositif électrochromique
US20120026573A1 (en) 2010-11-08 2012-02-02 Soladigm, Inc. Electrochromic window fabrication methods
WO2017157626A1 (fr) 2016-03-17 2017-09-21 Saint-Gobain Glass France Pare-brise doté d'un pare-soleil à réglage électrique
WO2019238520A1 (fr) 2018-06-11 2019-12-19 Saint-Gobain Glass France Élément fonctionnel aux propriétés optiques commandables par voie électrique
WO2020083563A1 (fr) 2018-10-26 2020-04-30 Saint-Gobain Glass France Verre feuilleté doté d'un élément fonctionnel commutable par segments et aux propriétés optiques aptes à être commandées par voie électrique
WO2020083562A1 (fr) 2018-10-26 2020-04-30 Saint-Gobain Glass France Verre feuilleté doté d'un élément fonctionnel commutable par segments et aux propriétés optiques aptes à être commandées par voie électrique
WO2020143984A1 (fr) 2019-01-07 2020-07-16 Saint-Gobain Glass France Élément fonctionnel commandable électriquement non assemblé avec film protecteur

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EP0876608B1 (fr) 1995-11-27 2002-04-17 Fuhr, Günter Procede et dispositif de production de phenomenes de resonance dans des suspensions de particules
WO2011033313A1 (fr) 2009-09-18 2011-03-24 Pilkington Group Limited Vitrage feuilleté
WO2012007334A1 (fr) 2010-07-13 2012-01-19 Saint-Gobain Glass France Dispositif électrochromique
US20120026573A1 (en) 2010-11-08 2012-02-02 Soladigm, Inc. Electrochromic window fabrication methods
WO2017157626A1 (fr) 2016-03-17 2017-09-21 Saint-Gobain Glass France Pare-brise doté d'un pare-soleil à réglage électrique
WO2019238520A1 (fr) 2018-06-11 2019-12-19 Saint-Gobain Glass France Élément fonctionnel aux propriétés optiques commandables par voie électrique
WO2020083563A1 (fr) 2018-10-26 2020-04-30 Saint-Gobain Glass France Verre feuilleté doté d'un élément fonctionnel commutable par segments et aux propriétés optiques aptes à être commandées par voie électrique
WO2020083562A1 (fr) 2018-10-26 2020-04-30 Saint-Gobain Glass France Verre feuilleté doté d'un élément fonctionnel commutable par segments et aux propriétés optiques aptes à être commandées par voie électrique
WO2020143984A1 (fr) 2019-01-07 2020-07-16 Saint-Gobain Glass France Élément fonctionnel commandable électriquement non assemblé avec film protecteur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022134124A1 (de) 2022-12-20 2024-06-20 Webasto SE Verfahren zur Vorbereitung eines PDLC-Rohlings

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