WO2024043758A1 - Film pour véhicule et son procédé de fabrication - Google Patents

Film pour véhicule et son procédé de fabrication Download PDF

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Publication number
WO2024043758A1
WO2024043758A1 PCT/KR2023/012671 KR2023012671W WO2024043758A1 WO 2024043758 A1 WO2024043758 A1 WO 2024043758A1 KR 2023012671 W KR2023012671 W KR 2023012671W WO 2024043758 A1 WO2024043758 A1 WO 2024043758A1
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WO
WIPO (PCT)
Prior art keywords
film
layer
conductive polymer
polymer layer
film fabric
Prior art date
Application number
PCT/KR2023/012671
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English (en)
Korean (ko)
Inventor
김성철
윤진수
Original Assignee
팅크웨어(주)
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
Priority claimed from KR1020230111598A external-priority patent/KR20240029528A/ko
Application filed by 팅크웨어(주) filed Critical 팅크웨어(주)
Publication of WO2024043758A1 publication Critical patent/WO2024043758A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals

Definitions

  • a film may be attached to the window of the vehicle.
  • the film may include a smart film whose transparency can be adjusted by user input.
  • the film can provide a variety of user experiences to users riding in the vehicle by being attached to the glass roof at the top of the vehicle.
  • the film may be required to be manufactured so that it can be easily attached to the window of a vehicle by the user.
  • a vehicle film includes a liquid crystal layer, a first conductive polymer layer laminated on a first side of the liquid crystal layer, and the first conductive polymer layer of the liquid crystal layer.
  • the film may have curvature by being at least partially bent.
  • a method of manufacturing a film for a vehicle includes preparing a film fabric, heating the prepared film fabric, vacuum forming the heated film fabric, and cutting the vacuum formed film fabric. May include steps.
  • 1A is a top plan view of an example vehicle.
  • 1B shows the internal structure of an exemplary vehicle.
  • Figure 2 is a flow chart showing an exemplary film manufacturing process.
  • Figure 3 is a cross-sectional view of an exemplary film.
  • Figure 4 shows an exemplary film heating process.
  • Figure 5 shows a vacuum forming process for an exemplary film.
  • Figure 6 shows an exemplary film with wires connected.
  • Figure 7 is a flow chart illustrating a process for installing an exemplary film on a vehicle.
  • Figure 8 shows the internal structure of a vehicle with an exemplary film attached.
  • 1A is a top plan view of an example vehicle.
  • 1B shows the internal structure of an exemplary vehicle.
  • the vehicle 10 may include a sunroof 11 .
  • Film 100 may be attached to the vehicle 10 .
  • the sunroof 11 may be placed on the top of the vehicle.
  • the sunroof 11 may be placed in the vehicle 10 so as to be positioned over the user riding the vehicle.
  • the sunroof 11 includes a substantially transparent material (e.g., glass), thereby providing visibility to the external environment of the vehicle 10 to the user riding the vehicle 10. can be provided.
  • the sunroof 11, which provides visibility of the external environment to a user riding in the vehicle 10 may be referred to as a glass roof, but is not limited thereto.
  • the vehicle 10 may be required to adjust the visibility provided through the sunroof 11 to meet the needs of users riding within the vehicle 10.
  • the film 100 may be attached to the sunroof 11.
  • the sunroof 11 may include an outer surface 11a that faces the outside of the vehicle 10, and an inner surface 11b that is opposite to the outer surface 11a and faces the inside of the vehicle 10. there is.
  • the film 100 may be attached on the inner surface 11b, among the outer surface 11a and the inner surface 11b of the sunroof 11.
  • film 100 may include a substantially transparent or translucent material.
  • the film 100 may be configured such that the transparency of the film 100 is adjusted by the user. The change in transparency of the film 100 will be described later in FIG. 3 and below.
  • the film 100 may be configured so that the transparency of the film 100 changes depending on the intensity of the current flowing inside the film 100.
  • the film 100 whose transparency changes depending on the intensity of the current, may be referred to as a smart film or a polymer dispersed liquid crystal (PDLC) film, but is not limited thereto.
  • PDLC polymer dispersed liquid crystal
  • the film 100 may be provided in the form of fabric (eg, film fabric 300 in FIG. 3) in order to be attached to the sunroof 11 of the vehicle 10.
  • the film 100 may be required to be processed into a shape corresponding to the shape of the sunroof 11.
  • the film 100 may be provided in the form of a fabric and then required to be cut to a size corresponding to the size of the sunroof 11 of the vehicle 10.
  • the film 100 may be required to be cut to a size corresponding to the size of the sunroof 11 and then formed into a shape corresponding to the shape of the sunroof 11.
  • the film 100 is molded into a shape corresponding to the shape of the sunroof 11, and then an electric wire (e.g., the electric wire 610 in FIG. 6) for supplying power to the inside of the film 100.
  • an electric wire e.g., the electric wire 610 in FIG. 6
  • the film 100 is provided in a shape corresponding to the shape of the sunroof 11, which varies depending on the vehicle 10, so that unnecessary processing of the film 100 can be omitted.
  • the film 100 is provided in a structure in which electric wires for supplying power are connected to the inside of the film 100, thereby simplifying the process of installing the film 100 in the vehicle 10.
  • the manufacturing process of the film 100 to simplify the process of installing the film 100 on the vehicle 10 will be described later in FIG. 2 and below.
  • the film 100 has been described as being attached to the sunroof 11 of the vehicle 10, it is not limited thereto. Although not shown, the film 100 is applied to a plurality of windows (e.g., front windshield, rear windshield, side window) of the vehicle 10 including the sunroof 11. )) can be attached to.
  • the film 100 may be configured to adjust visibility provided through at least some of the plurality of windows by being attached to at least some of the plurality of transparent windows.
  • the film 100 for the vehicle 10 is attached to the sunroof 11 so that it can be transmitted from the outside of the vehicle 10 to the inside of the vehicle 10 through the sunroof 11.
  • the heat transferred can be reduced.
  • the film 100 is configured so that the transparency of the film 100 can be changed, thereby providing a variety of user experiences to users riding the vehicle 10.
  • Figure 2 is a flow chart showing an exemplary film manufacturing process.
  • the manufacturing process of FIG. 2 is performed before a film (e.g., film 100 of FIG. 1b) is attached to the sunroof (e.g., sunroof 11 of FIG. 1a) of a vehicle (e.g., vehicle 10 of FIG. 1a). , It may be a manufacturing process for processing into a shape corresponding to the shape of the sunroof 11.
  • a film fabric (e.g., film fabric 300 in FIG. 3) is prepared to be processed into a film 100 having a shape corresponding to the shape of the sunroof 11 of the vehicle 10.
  • the film fabric 300 may be provided in a structure in which a plurality of layers are laminated, as shown in FIG. 3 .
  • the film fabric 300 prepared in step 201 may include a layer containing a material with relatively high heat resistance for thermoforming in step 203.
  • the film fabric 300 may be heated.
  • the film fabric 300 can be easily deformed by being heated.
  • the film fabric 300 may be heated by a heater (eg, the first heater 410 and the second heater 420 of FIG. 4).
  • step 203 may include moving the film fabric 300 between the first heater 410 and the second heater 420 at a specified speed.
  • the time for which the film fabric 300 is placed between the first heater 410 and the second heater 420 may be within the range of 10 seconds to 20 seconds, but is not limited thereto.
  • step 203 may include preheating the film fabric 300 within a specified temperature range to reduce deformation of the film fabric 300 due to heating.
  • the step 203 may include preheating the film fabric 300 and then heating the film fabric 300 within a temperature range higher than the designated temperature range.
  • the heated film fabric 300 may be vacuum formed.
  • the film fabric 300 can be formed into a shape corresponding to the shape of the sunroof 11 of the vehicle 10 by being vacuum formed.
  • at least a portion of the film fabric 300 is attached to the curved surface of the sunroof 11 through a curved surface (e.g., curved surface 511 in FIG. 5) within a mold (e.g., mold 510 in FIG. 5). It can be formed to have a corresponding curved surface.
  • at least a portion of the film fabric 300 may be pressed into the mold 510 by a press (eg, press 520 of FIG. 5).
  • the air between the mold 510 and the press 520 is By flowing out of the mold 510, at least a portion of the film fabric 300 may be pressed against the curved surface 511 within the mold 510.
  • the at least part of the film fabric 300 is heated in step 203 and then pressed against the curved surface 511 of the mold 510, so that it is deformed into a shape corresponding to the shape of the curved surface 511. You can.
  • the vacuum formed film fabric 300 may be cut. At least a portion of the film fabric 300 may be cut into a size that is substantially the same as or similar to the size of the sunroof 11 of the vehicle 10.
  • a processing region e.g., processing region 301 in FIG. 5
  • the processing area 301 may be vacuum formed in step 205 and then cut from the film fabric 300 in step 207.
  • one of the processing areas 301 corresponds to the shape of the sunroof 11 of the vehicle 10.
  • processing area 301 may be separated from film fabric 300 at step 207.
  • the second part 301b of the processing area 301 may be cut from the first part 301a after the processing area 301 is separated from the film fabric 300.
  • the second part 301b can form the film 100 having a shape corresponding to the shape of the sunroof 11.
  • the second part 301b can form a film 100 having a size substantially the same as that of the sunroof 11.
  • step 207 may include cutting the film fabric 300 including a portion having a curvature after vacuum forming into a size within the range of 0.5 m 2 to 2 m 2 .
  • the length of the processing area 301 cut from the film fabric 300 may be within a range of 1000 mm or more and 2000 mm or less.
  • the width of the processing area 301 may be within a range of 700 mm to 1500 mm.
  • the processing area 301 includes a first part 301a that is substantially planar, and a second part 301b that has a curvature due to the curved surface 511 of the mold 510. may include.
  • the processing area 301 including the first part 301a and the second part 301b can be cut from the film fabric 300 to have a size in the range of 0.5 m 2 to 2 m 2 there is.
  • the electrode layer (e.g., the first electrode layer 341 and the second electrode layer 342 in FIG. 3) in the cut film fabric 300 is connected to an electric wire (e.g., the electric wire 610 in FIG. 6).
  • the film fabric 300 includes a liquid crystal layer (e.g., the liquid crystal layer 310 in FIG. 3) and at least one conductive polymer layer (e.g., at least one conductive polymer layer in FIG. 3) laminated to the liquid crystal layer 310. It may include a conductive polymer layer 320) and at least one electrode layer (eg, at least one electrode layer 340 in FIG. 3) disposed on the at least one conductive polymer layer 320.
  • the at least one conductive polymer layer 320 and the at least one electrode layer 340 may be electrically connected to the wire 610 in step 209.
  • at least one conductive polymer layer 320 and at least one electrode layer 340 in the second portion 301b separated from the first portion 301a in step 207 may be connected to the wire in step 209. It can be connected to (610).
  • the film 100 can be easily installed in the vehicle 10 by being provided in a structure connected to the wire 610.
  • the film 100 can be provided in a shape corresponding to the shape of the sunroof 11 of the vehicle 10.
  • the manufacturing process can provide the film 100 in a size corresponding to the size of the sunroof 11.
  • the manufacturing process includes the step of connecting the film 100 to the wire 610, so that the film 100 can be provided in a structure that can be easily installed in the vehicle 10.
  • Figure 3 is a cross-sectional view of an exemplary film.
  • the film 100 includes a liquid crystal layer 310, at least one conductive polymer layer 320, at least one substrate layer 330, at least one electrode layer 340, and It may include at least one coating layer 350.
  • the film fabric 300 to be processed into the film 100 may have a structure substantially the same as the structure in which a plurality of layers in the film 100 are stacked.
  • the liquid crystal layer 310 may include a plurality of liquid crystal particles 315 (a plurality of liquid crystal molecules).
  • the liquid crystal layer 310 may have a plurality of liquid crystal particles 315 dispersed within a conductive polymer material. Due to the conductive polymer material, the liquid crystal layer 310 may have conductivity.
  • a plurality of liquid crystal particles 315 in the liquid crystal layer 310 may be dispersed irregularly within the liquid crystal layer 310 while no current flows in the liquid crystal layer 310. there is.
  • the film 100 may be configured to be opaque as the plurality of irregularly dispersed liquid crystal particles 315 scatter light incident on the liquid crystal layer 310.
  • the plurality of liquid crystal particles 315 in the liquid crystal layer 310 may be aligned by having a specified direction while a current flows in the liquid crystal layer 310.
  • the number of the plurality of liquid crystal particles 315 aligned in the specified direction may change.
  • the film 100 transmits at least a portion of the light incident on the liquid crystal layer 310 by at least some of the plurality of liquid crystal particles 315 aligned while the current flows within the liquid crystal layer 310. ), it may be configured to be substantially transparent or translucent. Since the number of the plurality of liquid crystal particles 315 aligned in the film 100 varies depending on the intensity of the current, the film 100 changes depending on the intensity of the current flowing through the liquid crystal layer 310. The transparency may be adjusted.
  • At least one conductive polymer layer 320 may be laminated to the liquid crystal layer 310.
  • at least one conductive polymer layer 320 may include a first conductive polymer layer 321 and a second conductive polymer layer 322.
  • the first conductive polymer layer 321 may be laminated on the first surface 311 of the liquid crystal layer 310.
  • the second conductive polymer layer 322 may be laminated on the second side 312 of the liquid crystal layer 310, which is opposite to the first side 311.
  • at least one conductive polymer layer 320 may cover at least a portion of the liquid crystal layer 310.
  • at least one conductive polymer layer 320 may be in contact with the liquid crystal layer 310.
  • At least one polymer layer 320 may be electrically connected to an electric wire (eg, electric wire 610 in FIG. 6).
  • an electric wire eg, electric wire 610 in FIG. 6
  • the at least one conductive polymer layer 320 and the liquid crystal layer 310 in contact with the at least one conductive polymer layer 320 current can flow.
  • At least one conductive polymer layer 320 may include a material with relatively high heat resistance.
  • the at least one conductive polymer layer 320 may have flexibility.
  • the at least one conductive polymer layer 320 may include plastic, but is not limited thereto.
  • the film fabric 300 includes the at least one conductive polymer layer 320 that has relatively high heat resistance, thereby reducing damage to the film fabric 300 due to heating in step 203 of FIG. 2. .
  • the film fabric 300 may be configured to be easily deformable in step 205 of FIG. 2 by including the conductive polymer layer 320 having flexibility.
  • At least one base layer 330 may be disposed on at least one conductive polymer layer 320.
  • an element when an element is referred to as being “on” another element, it may be directly on that other element or there may be intervening elements between them. You must understand that it exists.
  • “B placed over A” may refer to “B placed over A.”
  • “B disposed on A” may refer to “B facing A and spaced apart from A.”
  • “at least one base layer 330 disposed on at least one conductive polymer layer 320” means “at least one base layer 330 in contact with at least one conductive polymer layer 320.” It can mean.
  • At least one base layer 330 disposed on the at least one conductive polymer layer 320 means “facing the at least one conductive polymer layer 320 and forming the at least one conductive polymer layer 320.” ) may mean “at least one base layer 330 spaced apart from”.
  • At least one base layer 330 may include a first base layer 331 and a second base layer 332.
  • the first base layer 331 may be disposed on the first conductive polymer layer 321.
  • the second base layer 332 may be disposed on the second conductive polymer layer 322.
  • at least one base layer 330 may form the exterior of the film 100 and/or the film fabric 300.
  • the at least one base layer 330 may include at least one of poly ethylene terephthlate (PET), polycarbonate (PC), polyethylene napthalene (PEN), polyurethane (PU), and polyimide (PI). , but is not limited to this.
  • the first conductive polymer layer 321 may be disposed between the first base layer 331 and the liquid crystal layer 310.
  • the second conductive polymer layer 322 may be disposed between the second base layer 332 and the liquid crystal layer 310.
  • the first base layer 331 may be spaced apart from the first conductive polymer layer 321.
  • a plurality of layers may be interposed between the first base layer 331 and the first conductive polymer layer 321.
  • the second base layer 332 may be spaced apart from the second conductive polymer layer 322.
  • a plurality of other layers may be interposed between the second base layer 332 and the second conductive polymer layer 322.
  • At least one electrode layer 340 may be disposed between at least one conductive polymer layer 320 and at least one base layer 330.
  • at least one electrode layer 340 may include a first electrode layer 341 and a second electrode layer 342.
  • the first electrode layer 341 may be disposed between the first conductive polymer layer 321 and the first base layer 331.
  • the second electrode layer 342 may be disposed between the second conductive polymer layer 322 and the second base layer 332.
  • the first electrode layer 341 may be disposed on the first surface 311 of the liquid crystal layer 310.
  • the second electrode layer 342 may be disposed on the second side 312 of the liquid crystal layer 310, which is opposite to the first side 311.
  • At least one electrode layer 340 may be electrically connected to the wire 610.
  • the at least one electrode layer 340 may be configured to receive power through the wire 610 so that current flows through the liquid crystal layer 310 together with the at least one conductive polymer layer 320.
  • at least one electrode layer 340 may include a material with relatively high rigidity.
  • the at least one electrode layer 340 may include metal, but is not limited thereto.
  • the at least one electrode layer 340 may be at least partially oxidized by being heated by heat transferred from the liquid crystal layer 310 and/or the at least one conductive polymer layer 320.
  • the at least one electrode layer 340 may be discolored or damaged due to oxidation.
  • the film 100 and/or the film fabric 300 may require a structure to reduce oxidation of the at least one electrode layer 340.
  • the film 100 may include at least one coating layer 350 interposed between at least one conductive polymer layer 320 and at least one electrode layer 340.
  • at least one coating layer 350 may include a first coating layer 351 and a second coating layer 352.
  • the first coating layer 351 may be interposed between the first conductive polymer layer 321 and the first electrode layer 341.
  • the second coating layer 352 may be interposed between the second conductive polymer layer 322 and the second electrode layer 342.
  • the first coating layer 351 may be coated on one side of the first electrode layer 341 facing the liquid crystal layer 310.
  • the second coating layer 352 may be coated on one side of the second electrode layer 342 facing the liquid crystal layer 310.
  • At least one coating layer 350 may separate the liquid crystal layer 310 and/or at least one conductive polymer layer 320 and at least one electrode layer 340.
  • the at least one coating layer 350 may include a material with relatively low thermal conductivity.
  • the at least one coating layer 350 may include urethane, but is not limited thereto. For example, as a current flows through the liquid crystal layer 310 and/or the at least one conductive polymer layer 320, heat is generated from the liquid crystal layer 310 and/or the at least one conductive polymer layer 320. may be released.
  • the film 100 includes at least one coating layer 350 interposed between the at least one conductive polymer layer 320 and the at least one electrode layer 340, thereby forming the liquid crystal layer 310 and/or the at least one Heat transferred from one conductive polymer layer 320 to the at least one electrode layer 340 can be reduced.
  • the at least one coating layer 350 insulates heat from the liquid crystal layer 310 and/or the at least one conductive polymer layer 320 to the at least one electrode layer 340, thereby reducing the heat. Damage of the at least one electrode layer 340 due to damage can be reduced.
  • the film 100 and/or the film fabric 300 may have a heat distortion temperature within a range of 350 degrees to 500 degrees.
  • the film 100 and/or the film fabric 300 includes a first conductive polymer layer 321 and a second conductive polymer layer 322 with relatively high heat resistance, so that the temperature is 350 degrees to 500 degrees Celsius. It may have a heat distortion temperature located within the range of.
  • the film 100 and/or the film fabric 300 includes a first coating layer 351 and a second coating layer 352 with relatively low thermal conductivity, so that the temperature range is 350 degrees to 500 degrees. It may have a heat distortion temperature located within.
  • the film 100 and/or the film fabric 300 may include, instead of ITO (Indium Tin Oxide) laminated on the liquid crystal layer 310, at least one conductive polymer layer 320 and the at least one By including a conductive polymer layer 320, at least one electrode layer 340, and at least one coating layer 350, heat resistance can be increased.
  • the film fabric 300 has a heat distortion temperature within the range of 350 degrees to 500 degrees, thereby reducing damage to the film fabric 300 due to heating in step 203 of FIG. 2.
  • the film 100 includes the at least one coating layer 350 and the at least one conductive polymer layer 320, thereby forming a sunroof (e.g., FIG. 1a) of a vehicle (e.g., vehicle 10 in FIG. 1a). While attached to the sunroof 11, the heat barrier rate of heat flowing through the sunroof 11 of the film 100 can be increased.
  • the film 100 can increase heat resistance of the film 100 by including at least one conductive polymer layer 320.
  • the film 100 includes at least one coating layer 350 to reduce damage to at least one electrode layer 340 by heat emitted from the liquid crystal layer 310 and the at least one polymer layer 320. You can.
  • Figure 4 shows an exemplary film heating process.
  • the heating process in FIG. 4 may be referred to as step 203 in FIG. 2 .
  • step 400a the film fabric 300 prepared in step 201 of FIG. 2 may be heated to a temperature within the first reference range.
  • step 400a may be a step of preheating the film fabric 300.
  • the film fabric 300 may be moved between the first heater 410 and the second heater 420.
  • the film fabric 300 may pass between the first heater 410 and the second heater 420 at a specified speed.
  • the film fabric 300 may pass between the first area 410a of the first heater 410 and the second area 420a of the second heater 420.
  • the first area 410a and the second area 420a may heat the film fabric 300 to a temperature within the first reference range.
  • the temperature within the first reference range may be within a range of 1 degree to 100 degrees, but is not limited thereto.
  • the film fabric 300 heated to a temperature within the first reference range is within a second reference range higher than the temperature within the first reference range before being vacuum formed in step 205 of FIG. 2.
  • the film fabric 300 is heated by the first area 410a and the second area 420a, and then the first heater 410 extending from the first area 410a ) and the fourth area 420b of the second heater 420 extending from the second area 420a.
  • the third area 410b and the fourth area 420b may heat the film fabric 300 to a temperature within a second reference range that is higher than a temperature within the first reference range.
  • the temperature within the second reference range may be within a range of 100 degrees to 350 degrees, but is not limited thereto.
  • the film fabric 300 may be easily deformed by being heated to a temperature within the second reference range in step 400b.
  • the process of heating the film fabric 300 can reduce damage to the film fabric 300 by including the step of heating the film fabric 300 to a temperature within a first reference range.
  • the process of heating the film fabric 300 includes heating to a temperature within a second reference range that is higher than the temperature within the first reference range, so that the film fabric 300 can be easily formed in step 205. It can provide a state for becoming.
  • Figure 5 shows a vacuum forming process for an exemplary film.
  • the vacuum forming process of FIG. 5 may be referred to as step 205 of FIG. 2 .
  • step 500a the film fabric 300 heated in step 203 of FIG. 2 is positioned between the mold 510 in which the curved surface 511 is formed and the press 520 facing the mold 510.
  • the processing area 301 of the film fabric 300 is a sunroof (e.g., sunroof 11 in FIG. 1a) of a vehicle (e.g., vehicle 10 in FIG. 1a). It may be located on a curved surface 511 of the mold 510 having a shape corresponding to , and a support surface 512 surrounding the curved surface 511.
  • the processing area 301 includes the curved surface 511 and the support surface 512 and has a size corresponding to the size of one surface of the mold 510 facing the press 520. You can.
  • the film fabric 300 may be pressed into the mold 510 by being pressed by the press 520.
  • the space between the mold 510 and the press 520 may be sealed by the press 520.
  • the press 520 presses the processing area 301 on the mold 510 toward the mold 510, thereby forming the processing area 301 and the curved surface 511 of the mold 510.
  • the space formed between the molds 510 can be sealed.
  • the air inside the space between the mold 510 and the press 520 may be removed.
  • the film fabric 300 between the mold 510 and the press 520 is formed on the curved surface 511 of the mold 510 by removing the air between the mold 510 and the press 520. It can be compressed.
  • the processing area 301 of the film fabric 300 may be pressed to the support surface 512 of the mold 510 by the press 520. Since the air between the processing area 301 and the curved surface 511 of the mold 510 is removed in step 500b, at least a portion of the processing area 301 may be pressed to the curved surface 511. . Since the processing area 301 is heated in step 203, it can be deformed into a shape corresponding to the shape of the curved surface 511 by being pressed against the curved surface 511.
  • the processing area 301 of the film fabric 300 includes a first part 301a pressed to the support surface 512 of the mold 510, and a second part pressed to the curved surface 511 of the mold 510. It may include a portion 301b.
  • the second part 301b may have a shape corresponding to the sunroof 11 of the vehicle 10 by being pressed against the curved surface 511.
  • the processing area 301 including the first part 301a and the second part 301b passes between the mold 510 and the press 520 in order to be cut from the film fabric 300. can be moved
  • the process of vacuum forming the film fabric 300 includes the step of pressing the film fabric 300 into a mold 510 having a curved surface 511, thereby forming the film fabric 300. At least a portion (eg, processing area 301) may be molded into a shape corresponding to the shape of the sunroof 11 of the vehicle 10.
  • Figure 6 shows an exemplary film with wires connected.
  • the film 100 may be connected to the wire 610.
  • the film 100 is shown in a form in which the processing area 301 of FIG. 5 and/or the second part 301b having a curvature of the processing area 301 are separated from the film fabric 300. It can be.
  • the wire 610 may be electrically connected to at least some of the plurality of layers in the film 100.
  • one end of the wire 610 may be connected to at least one conductive polymer layer 320 and at least one electrode layer 340 of the film 100. there is.
  • the film 100 is provided in a form connected to the wire 610, so that it can be provided in a structure that can be easily installed in a vehicle (eg, vehicle 10 in FIG. 1A).
  • the film 100 may have a size (S) of 0.5 m 2 to 2 m 2 .
  • the length of the film 100 may be within a range of 1000 mm or more and 2000 mm or less.
  • the width of the film 100 may be within a range of 700 mm to 1500 mm.
  • the film 100 may be cut to have a size (S) of 0.5 m 2 to 2 m 2 from the film fabric 300 through step 207 of FIG. 2 .
  • the film 100 has a size (S) of 0.5 m 2 to 2 m 2 and can be provided to be easily attached to the sunroof of the vehicle 10 (e.g., the sunroof 11 in FIG. 1A). .
  • the film 100 is provided in a structure connected to the wire 610, so that it can be provided in a structure that can be easily installed in the vehicle 10.
  • the film 100 can be provided to be easily attached to the sunroof 11 of the vehicle 10 by having a size (S) within a specified range.
  • Figure 7 is a flow chart illustrating a process for installing an exemplary film on a vehicle.
  • the film provided through the process of FIG. 2 may be attached to a vehicle (e.g., vehicle 10 in FIG. 1A).
  • the film 100 is applied to the inner surface of the sunroof of the vehicle 10 (e.g., the sunroof 11 of FIG. 1A) facing the inside of the vehicle 10 (e.g., the inner surface 11b of FIG. 1A).
  • the film 100 includes a curvature so as to have a shape corresponding to the shape of the sunroof 11, it can be easily attached to the sunroof 11.
  • the film 100 has a size corresponding to the size of the sunroof 11, it can be easily attached to the sunroof 11.
  • the wire connected to the film 100 may be connected to a controller (e.g., the first controller 810 in FIG. 8).
  • a controller e.g., the first controller 810 in FIG. 8
  • one end of the wire 610 is connected to at least one conductive polymer layer (e.g., at least one conductive polymer layer 320 of FIG. 3) and at least one electrode layer (e.g., FIG. 3) in the film 100. It may be electrically connected to at least one electrode layer 340 of.
  • the other end of the wire 610 opposite to the one end may be connected to the controller.
  • the controller may apply power to the film 100 through the wire.
  • the controller may be configured to control the intensity of current flowing within the film 100, thereby adjusting the transparency of the film 100.
  • the film 100 is provided in a structure connected to the wire 610, so that it can be provided in a structure that can be easily installed with the controller.
  • the film 100 is provided to have a shape corresponding to the sunroof 11 of the vehicle 10, so that it can be easily attached to the sunroof 11.
  • Figure 8 shows the internal structure of a vehicle with an exemplary film attached.
  • the film 100 may be attached to the sunroof 11 of the vehicle 10.
  • the film 100 may be connected to the first controller 810 through a wire 610.
  • the first controller 810 may be configured to apply power to the film 100 through the wire 610.
  • the first controller 810 may include a power button 811 and an adjustment button 812.
  • the first controller 810 can apply power to the film 100 or block the application of power to the film 100 through the power button 811.
  • the first controller 810 changes the intensity of the current flowing through the film 100 while power is applied to the film 100 through the adjustment button 812, thereby controlling the Can be configured to adjust transparency.
  • the first controller 810 may be controlled by the second controller 820.
  • the second controller 820 may be configured to control the first controller 810 through wireless communication.
  • the second controller 820 may be configured to apply power to the film 100 or adjust transparency of the film 100 by controlling the first controller 810.
  • the film 100 is provided in a structure connected to the wire 610, so that it can be provided in a structure that can be easily installed with the controller.
  • the film 100 is provided to have a shape corresponding to the sunroof 11 of the vehicle 10, so that it can be easily attached to the sunroof 11.
  • the vehicle film (e.g., film 100 in FIG. 1B) includes a liquid crystal layer (e.g., liquid crystal layer 310 in FIG. 3) and a first surface of the liquid crystal layer (e.g., film 100 in FIG. 1B).
  • a first conductive polymer layer laminated on the first surface 311 of FIG. 3 e.g., the first conductive polymer layer 321 of FIG. 3
  • the liquid crystal layer A second conductive polymer layer e.g., second conductive polymer layer 322 in FIG. 3) laminated on a second side (e.g., second side 312 in FIG.
  • the first A first substrate layer on the conductive polymer layer e.g., the first substrate layer 331 in FIG. 3
  • a second substrate layer on the second conductive polymer layer e.g., the second substrate layer 332 in FIG. 3
  • a first electrode layer between the first conductive polymer layer and the first base layer e.g., the first electrode layer 341 in FIG. 3
  • a first electrode layer between the second conductive polymer layer and the second base layer e.g., the first electrode layer 341 in FIG. 3
  • It may include two electrode layers (eg, the second electrode layer 342 in FIG. 3).
  • the film may have curvature by being at least partially bent.
  • the film includes a first coating layer (e.g., first coating layer 351 in FIG. 3) interposed between the first conductive polymer layer and the first electrode layer, and the second conductive polymer layer. It may further include a second coating layer (eg, the second coating layer 352 in FIG. 3) interposed between the second electrode layers.
  • the first coating layer and the second coating layer may each include urethane.
  • the first conductive polymer layer and the second conductive polymer layer may each include plastic.
  • the first electrode layer and the second electrode layer may each include metal.
  • the film according to one embodiment may have a heat deflection temperature within a range of 350 degrees to 500 degrees.
  • the film according to one embodiment may have a size of 0.5 m 2 to 2 m 2 (eg, S in FIG. 6 ).
  • a method of manufacturing a film for a vehicle includes preparing a film fabric, heating the prepared film fabric, vacuum forming the heated film fabric, and cutting the vacuum formed film fabric. May include steps.
  • the step of heating the prepared film fabric may include heating the prepared film fabric to a temperature within a first reference range.
  • the step of heating the prepared film fabric is performed by heating the prepared film fabric to the temperature within the first reference range and then heating the film fabric to a temperature within a second reference range that is higher than the temperature within the first reference range before vacuum forming the film fabric. It may include a heating step.
  • the step of vacuum forming the heated film fabric may include positioning the heated film fabric between a mold having a curved surface and a press facing the mold.
  • the step of vacuum forming the heated film fabric may include sealing the inner space of the mold by pressing the film fabric with the press.
  • the step of vacuum forming the heated film fabric may include removing air inside the sealed mold so that the film fabric is pressed to the curved surface.
  • the step of cutting the vacuum formed film fabric may include cutting the film fabric including a portion having a curvature after vacuum forming into a size within the range of 0.5 m 2 to 2 m 2 You can.
  • the film fabric may include a liquid crystal layer, at least one conductive polymer layer laminated on the liquid crystal layer, and at least one electrode layer disposed on the at least one conductive polymer layer.
  • the method may further include connecting an electric wire to the at least one conductive polymer layer and the at least one electrode layer.
  • first, second, or first or second may be used simply to distinguish one element from another, and may be used to distinguish such elements in other respects, such as importance or order) is not limited.
  • One (e.g. first) component is said to be “coupled” or “connected” to another (e.g. second) component, with or without the terms “functionally” or “communicatively”.
  • any of the components can be connected to the other components directly (e.g. wired), wirelessly, or through a third component.
  • each of the above-described components may include a single or a plurality of entities, and some of the plurality of entities may be separately arranged in other components.
  • one or more of the above-described corresponding components may be omitted, or one or more other components may be added.
  • multiple components may be integrated into one component.
  • the integrated component may perform one or more functions of each component of the plurality of components in the same or similar manner as those performed by the corresponding component of the plurality of components prior to the integration.
  • processes for producing a film are performed sequentially, in parallel, or repeatedly, or one or more of the processes is performed in a different order, omitted, or one or more other processes are added. It can be.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Dispersion Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Surface Heating Bodies (AREA)

Abstract

Selon un mode de réalisation, un film pour un véhicule peut comprendre : une couche de cristaux liquides ; une première couche de polymère conducteur stratifiée sur un premier côté de la couche de cristaux liquides ; une seconde couche de polymère conducteur stratifiée sur un second côté opposé au premier côté de la couche de cristaux liquides ; une première couche de substrat sur la première couche de polymère conducteur ; une seconde couche de substrat sur la seconde couche de polymère conducteur ; une première couche d'électrode entre la première couche de polymère conducteur et la première couche de substrat ; et une seconde couche d'électrode entre la seconde couche de polymère conducteur et la seconde couche de substrat. Le film peut être au moins partiellement incurvé de façon à avoir une courbure.
PCT/KR2023/012671 2022-08-26 2023-08-25 Film pour véhicule et son procédé de fabrication WO2024043758A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20220107528 2022-08-26
KR10-2022-0107528 2022-08-26
KR1020230111598A KR20240029528A (ko) 2022-08-26 2023-08-24 차량용 필름 및 그 제조 방법
KR10-2023-0111598 2023-08-24

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WO2024043758A1 true WO2024043758A1 (fr) 2024-02-29

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007146862A2 (fr) * 2006-06-09 2007-12-21 Gentex Corporation système de fenêtre à transmission variable
KR20110137102A (ko) * 2010-06-16 2011-12-22 정진교 자동차 앞뒤 유리와 같은 형태로 성형 된 에너지 절약 필름 및 이에 대한 제조방법
KR20160088369A (ko) * 2014-07-14 2016-07-25 쌩-고벵 글래스 프랑스 스위칭가능한 유리 구조물 및 차량 창문
CN108621504A (zh) * 2017-03-17 2018-10-09 长沙星纳气凝胶有限公司 一种安全节能型汽车玻璃及其制造方法
KR20200134275A (ko) * 2018-03-26 2020-12-01 쌩-고벵 글래스 프랑스 어두운 내부 및 외부 스택들의 조합을 통한 pdlc 차량 판유리의 향상된 광학 인상

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007146862A2 (fr) * 2006-06-09 2007-12-21 Gentex Corporation système de fenêtre à transmission variable
KR20110137102A (ko) * 2010-06-16 2011-12-22 정진교 자동차 앞뒤 유리와 같은 형태로 성형 된 에너지 절약 필름 및 이에 대한 제조방법
KR20160088369A (ko) * 2014-07-14 2016-07-25 쌩-고벵 글래스 프랑스 스위칭가능한 유리 구조물 및 차량 창문
CN108621504A (zh) * 2017-03-17 2018-10-09 长沙星纳气凝胶有限公司 一种安全节能型汽车玻璃及其制造方法
KR20200134275A (ko) * 2018-03-26 2020-12-01 쌩-고벵 글래스 프랑스 어두운 내부 및 외부 스택들의 조합을 통한 pdlc 차량 판유리의 향상된 광학 인상

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