Film for vehicle and method for manufacturing same

Abstract

According to one embodiment, a film for a vehicle may include: a liquid crystal layer; the first conductive polymer layer is laminated on the first surface of the liquid crystal layer, and the second conductive polymer layer is laminated on the second surface of the liquid crystal layer; a second conductive polymer layer laminated on a second surface opposite to the first surface of the liquid crystal layer; a first substrate layer (substrate layer) on the first conductive polymer layer; a second substrate layer on the second conductive polymer layer; a first electrode layer between the first conductive polymer layer and the first substrate layer; and a second electrode layer between the second conductive polymer layer and the second substrate layer. The film may have a curvature by at least partially bending.

Description

Technical Field

[0001] Various embodiments described below relate to a film for a vehicle and a method for producing the same. Background Art

[0002] In order to meet the needs of users riding in a vehicle, a film can be attached to the windows of the vehicle. The film may include a smart film that adjusts transparency through user input. For example, the film can provide a variety of user experiences for users riding in the vehicle by attaching it to the glass roof on the top of the vehicle. The film may need to be manufactured in a form that is easy for users to attach to the vehicle window.

[0003] The above information may be provided as background art to assist in understanding the content of the present disclosure. No claim is made or any determination is made as to whether any part of the above content is applicable to the prior art related to the present disclosure. Summary of the invention

[0004] According to one embodiment, the film for a vehicle may include: a liquid crystal layer; a first conductive polymer layer laminated on a first surface of the liquid crystal layer; a second conductive polymer layer laminated on a second surface opposite to the first surface of the liquid crystal layer; a first substrate layer on the first conductive polymer layer; a second substrate layer on the second conductive polymer layer; a first electrode layer between the first conductive polymer layer and the first substrate layer; and a second electrode layer between the second conductive polymer layer and the second substrate layer. The film may have a curvature by being at least partially bent.

[0005] According to an embodiment, a method for manufacturing a film for a vehicle may include the following steps: preparing a film raw material; heating the prepared film raw material; vacuum forming the heated film raw material; and cutting the vacuum formed film raw material. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1a is a top plan view of an exemplary vehicle.

[0007] Figure 1b An exemplary vehicle interior is shown.

[0008] Figure 2is a flow chart showing a process for manufacturing an exemplary thin film.

[0009] Figure 3 is a cross-sectional view of an exemplary film.

[0010] Figure 4 An exemplary thin film heating process is shown.

[0011] Figure 5 An exemplary film vacuum forming process is shown.

[0012] Figure 6 An exemplary film with wires attached is shown.

[0013] Figure 7 is a flow chart illustrating a process for installing an exemplary film on a vehicle.

[0014] Figure 8 A vehicle interior structure is shown with an exemplary film affixed. DETAILED DESCRIPTION

[0015] Figure 1a is a top plan view of an exemplary vehicle. Figure 1b An exemplary vehicle interior is shown.

[0016] refer to Figure 1a and Figure 1b The vehicle 10 may include a sunroof 11 . The film 100 may be attached to the vehicle 10 .

[0017] According to one embodiment, the sunroof 11 may be disposed on the top of the vehicle. For example, the sunroof 11 may be disposed on the vehicle 10 so as to be located above a user riding in the vehicle. For example, the sunroof 11 may include a substantially transparent material (such as glass) to provide visibility of the external environment of the vehicle 10 to the user riding in the vehicle 10. For example, the sunroof 11 that provides visibility of the external environment to the user in the vehicle 10 may refer to a glass roof, but is not limited thereto. In order to meet the needs of the user riding in the vehicle 10, the vehicle 10 may need to adjust the visibility provided by the sunroof 11.

[0018] According to one embodiment, the film 100 may be attached to the sunroof 11. For example, the sunroof 11 may include an outer surface 11a facing the outside of the vehicle 10 and an inner surface 11b opposite to the outer surface 11a and facing the inside of the vehicle 10. The film 100 may be attached to the inner surface 11b of the outer surface 11a and the inner surface 11b of the sunroof 11. For example, the film 100 may include a substantially transparent or translucent material. The film 100 may be configured so that its transparency can be adjusted by the user. Regarding the change in the transparency of the film 100, it will be described in detail in the following. Figure 3 For example, the film 100 may be configured to change its transparency according to the intensity of the current flowing through the film 100. The film 100 that changes transparency according to the current intensity may refer to a smart film or a polymer dispersed liquid crystal (PDLC) film, but is not limited thereto.

[0019] According to one embodiment, the film 100 can be made of raw materials (such as Figure 3 The film 100 is provided in the form of a film raw material 300) to be attached to the sunroof 11 of the vehicle 10. In order to facilitate attachment to the sunroof 11 of the vehicle 10, the film 100 may need to be processed into a shape corresponding to the shape of the sunroof 11. For example, after the film 100 is provided in the form of a raw material, it needs to be cut into a size corresponding to the size of the sunroof 11 of the vehicle 10. For example, after being cut into a size corresponding to the size of the sunroof 11, the film 100 needs to be formed into a shape corresponding to the shape of the sunroof 11. For example, after the film 100 is formed into a shape corresponding to the shape of the sunroof 11, it may be necessary to connect the film 100 with an electric wire (such as Figure 6 By providing the film 100 corresponding to the shape of the sunroof 11 according to the vehicle 10, unnecessary steps of processing the film 100 can be omitted. By providing the film 100 in a structure to which a wire for supplying power to the inside of the film 100 is connected, the process of mounting the film 100 on the vehicle 10 can be simplified. The manufacturing process of the film 100 for simplifying the process of mounting on the vehicle 10 will be described in detail in the following. Figure 2 and described in detail below.

[0020] Although the film 100 is described as being attached to the sunroof 11 of the vehicle 10, the invention is not limited thereto. Although not shown, the film 100 may be attached to a plurality of windows (such as a front windshield, a rear windshield, and a side window) of the vehicle 10 including the sunroof 11. By being attached to at least a portion of the plurality of transparent windows, the film 100 may be configured to be able to adjust visibility provided through at least a portion of the plurality of windows.

[0021] According to the above embodiment, the film 100 of the vehicle 10 can reduce the heat transferred from the outside of the vehicle 10 to the inside of the vehicle 10 through the sunroof 11 by being attached to the sunroof 11. By configuring the transparency of the film 100 to be variable, the film 100 provides a diverse user experience for the user riding in the vehicle 10.

[0022] Figure 2 is a flow chart showing a process for manufacturing an exemplary thin film.

[0023] Figure 2 The manufacturing process shown can be used in thin films (such as Figure 1b The film 100 is attached to the vehicle (eg Figure 1a The sunroof of the vehicle 10 (such as Figure 1a Before forming the skylight 11), the film is processed into a shape corresponding to the shape of the skylight 11.

[0024] In step 201, a thin film raw material (such as Figure 3 A film raw material 300) may be prepared to be processed into a film 100 having a shape corresponding to the shape of the sunroof 11 of the vehicle 10. For example, Figure 3 As shown, a thin film raw material 300 having a laminated structure of multiple layers may be provided. For example, in order to perform the thermoforming of step 203, the thin film raw material 300 prepared in step 201 may include a layer having a substance with relatively high heat resistance.

[0025] In step 203, the thin film raw material 300 may be heated. By heating, the thin film raw material 300 may be deformed more easily. For example, the thin film raw material 300 may be heated by a heater (such as Figure 4The first heater 410 and the second heater 420 of the film raw material 300 are heated. For example, step 203 may include the step of moving the film raw material 300 between the first heater 410 and the second heater 420 at a specified speed. The arrangement time of the film raw material 300 between the first heater 410 and the second heater 420 may be between 10 seconds and 20 seconds, but is not limited thereto. For example, in order to reduce the deformation of the film raw material 300 caused by heating, step 203 may include the step of preheating the film raw material 300 within a specified temperature range. Step 203 may include the step of heating the film raw material 300 within a temperature range higher than the specified temperature range after preheating the above-mentioned film raw material 300.

[0026] In step 205, the heated film raw material 300 may be vacuum formed. Through vacuum forming, the film raw material 300 may be formed into a shape corresponding to the shape of the sunroof 11 of the vehicle 10. For example, at least a portion of the film raw material 300 may be formed by a mold (such as Figure 5 The curved surface (such as Figure 5 The curved surface 511) is formed into a curved surface corresponding to the curved surface of the skylight 11. For example, at least a portion of the film raw material 300 can be formed by a press (such as Figure 5 The film raw material 300 is pressed onto the mold 510 by a press machine 520. At least a portion of the film raw material 300 is sandwiched between the mold 510 and the press machine 520 by the press machine 520, and then at least a portion of the film raw material 300 is pressed onto the curved surface 511 of the mold 510 by letting the air between the mold 510 and the press machine 520 flow out of the mold 510. At least a portion of the film raw material 300 is pressed onto the curved surface 511 of the mold 510 after being heated in step 203, so that it can be deformed into a shape corresponding to the shape of the curved surface 511.

[0027] In step 207, the vacuum-formed film raw material 300 may be cut. By cutting, at least a portion of the film raw material 300 may be cut to a size substantially the same as or similar to the size of the sunroof 11 of the vehicle 10. For example, in step 205, a processing region (e.g., Figure 5The processing area 301 of the vehicle 10 can be pressed onto the mold 510 by a press machine 520. After the processing area 301 is vacuum formed in step 205, it can be cut from the film raw material 300 in step 207. According to one embodiment, step 207 may include: after cutting the processing area 301 from the film raw material 300, the second portion (such as Figure 5 The second part 301b), from the first part surrounding the second part (such as Figure 5 For example, in step 207, the processing region 301 may be separated from the film raw material 300. The second portion 301b in the processing region 301 may be cut from the first portion 301a after the processing region 301 is separated from the film raw material 300. By separating the second portion 301b from the first portion 301a, a film 100 having a shape corresponding to the shape of the skylight 11 may be formed. By separating the second portion 301b from the first portion 301a, a film 100 having substantially the same size as the size of the skylight 11 may be formed.

[0028] According to an embodiment, step 207 may include: cutting the film raw material 300 including the portion having curvature after vacuum forming into 0.5 m 2 Up to 2m 2 The size within the range. For example, the length (length) of the processing area 301 cut from the film raw material 300 can be in the range of more than 1000 mm and less than 2000 mm. The width (width) of the processing area 301 can be in the range of more than 700 mm and less than 1500 mm. However, it is not limited to this. For example, through step 205, the processing area 301 may include a first portion 301a that is substantially flat and a second portion 301b that has a curvature due to the curved surface 511 of the mold 510. The processing area 301 including the first portion 301a and the second portion 301b can be cut from the film raw material 300 into 0.5 mm 2 Up to 2m 2 Size within the range.

[0029] In step 209, the electrode layer (eg Figure 3 The first electrode layer 341 and the second electrode layer 342 can be connected to the wire (such as Figure 6 For example, the thin film raw material 300 may include a liquid crystal layer (such as Figure 3 a liquid crystal layer 310), at least one conductive polymer layer (such as Figure 3 at least one conductive polymer layer 320) and at least one electrode layer (such as Figure 3 At least one electrode layer 340 of the second part 301a may be provided. In step 209, at least one conductive polymer layer 320 and at least one electrode layer 340 may be electrically connected to the wire 610. For example, at least one conductive polymer layer 320 and at least one electrode layer 340 in the second part 301b separated from the first part 301a in step 207 may be connected to the wire 610 in step 209. By providing the film 100 connected to the wire 610, the film 100 may be conveniently mounted on the vehicle 10.

[0030] According to the above embodiment, the manufacturing process of the film 100 can provide the film 100 corresponding to the shape of the sunroof 11 of the vehicle 10. The manufacturing process can provide the film 100 corresponding to the size of the sunroof 11. The manufacturing process includes the step of connecting the film 100 with the wire 610, so that the film 100 can be provided in a structure that is easy to be installed in the vehicle 10.

[0031] Figure 3 is a cross-sectional view of an exemplary film.

[0032] like Figure 3 As shown, the film 100 may include 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 at least one coating layer 350. The film raw material 300 used to be processed into the film 100 may have a structure substantially the same as the structure of the layers stacked in the film 100.

[0033] According to an embodiment, the liquid crystal layer 310 may include a plurality of liquid crystal particles 315. For example, the liquid crystal layer 310 may have a form in which a plurality of liquid crystal particles 315 are dispersed in a conductive polymer material. Due to the conductive polymer material, the liquid crystal layer 310 may have conductivity. For example, when no current flows in the liquid crystal layer 310, the plurality of liquid crystal particles 315 in the liquid crystal layer 310 may be irregularly dispersed in the liquid crystal layer 310. The film 100 may scatter light incident on the liquid crystal layer 310 through the irregularly dispersed plurality of liquid crystal particles 315, so that it appears opaque. For example, when current flows in the liquid crystal layer 310, at least a portion of the plurality of liquid crystal particles 315 in the liquid crystal layer 310 may be arranged in a specified direction. According to the intensity of the current flowing in the liquid crystal layer 310, the number of liquid crystal particles 315 arranged in the specified direction may change. The film 100 can be configured to be substantially transparent or translucent because at least a portion of the plurality of liquid crystal particles 315 arranged when current flows in the liquid crystal layer 310 allows at least a portion of light incident to the liquid crystal layer 310 to be transmitted. Since the number of the plurality of liquid crystal particles 315 arranged according to the intensity of the current is different, the transparency of the film 100 can be adjusted according to the intensity of the current flowing in the liquid crystal layer 310.

[0034] According to one embodiment, at least one conductive polymer layer 320 may be laminated on the liquid crystal layer 310. For example, the 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 a first surface 311 of the liquid crystal layer 310. The second conductive polymer layer 322 may be laminated on a second surface 312 opposite to the first surface 311. For example, the at least one conductive polymer layer 320 may cover at least a portion of the liquid crystal layer 310. For example, the at least one conductive polymer layer 320 may be in contact with the liquid crystal layer 310. For example, the at least one conductive polymer layer 320 may be in contact with a wire (such as Figure 6 The at least one conductive polymer layer 320 is electrically connected to the wire 610 in the liquid crystal layer 310. The at least one conductive polymer layer 320 is supplied with power by the wire 610, so that the current can flow through 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.

[0035] For example, at least one conductive polymer layer 320 may include a material with relatively strong heat resistance. At least one conductive polymer layer 320 may have flexibility. At least one conductive polymer layer 320 may include plastic, but is not limited thereto. By including at least one conductive polymer layer 320 with relatively strong heat resistance, the Figure 2The film raw material 300 is damaged by heating in step 203. By including the conductive polymer layer 320 having flexibility, the film raw material 300 can be Figure 2 The deformation is easily performed in step 205.

[0036] According to one embodiment, at least one substrate layer 330 may be disposed on at least one conductive polymer layer 320. In this document, when it is mentioned that an element is "on" another element, it should be understood that the element may be directly on the other element, or there may be intervening elements between the two. For example, in this document, "B disposed on A" may mean "B disposed over A". For example, in this document, "B disposed on A" may mean "B facing A and spaced apart from A". For example, "at least one substrate layer 330 disposed on at least one conductive polymer layer 320" may mean "at least one substrate layer 330 in contact with at least one conductive polymer layer 320". For example, "at least one substrate layer 330 disposed on at least one conductive polymer layer 320" may mean "at least one substrate layer 330 facing at least one conductive polymer layer 320 and spaced apart from at least one conductive polymer layer 320".

[0037] For example, at least one substrate layer 330 may include a first substrate layer 331 and a second substrate layer 332. The first substrate layer 331 may be disposed on the first conductive polymer layer 321. The second substrate layer 332 may be disposed on the second conductive polymer layer 322. For example, at least one substrate layer 330 may form the appearance of the film 100 and / or the film raw material 300. For example, at least one substrate layer 330 may include at least one of the following materials: PET (polyethylene terephthalate), PC (polycarbonate), PEN (polyethylene naphthalene), PU (polyurethane), and PI (polyimide), but is not limited thereto.

[0038] For example, the first conductive polymer layer 321 may be disposed between the first substrate layer 331 and the liquid crystal layer 310. The second conductive polymer layer 322 may be disposed between the second substrate layer 332 and the liquid crystal layer 310. For example, the first substrate layer 331 may be spaced apart from the first conductive polymer layer 321. A plurality of layers may be interposed between the first substrate layer 331 and the first conductive polymer layer 321. The second substrate layer 332 may be spaced apart from the second conductive polymer layer 322. A plurality of other layers may be interposed between the second substrate layer 332 and the second conductive polymer layer 322.

[0039] According to an embodiment, at least one electrode layer 340 may be disposed between at least one conductive polymer layer 320 and at least one substrate layer 330. For example, 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 substrate layer 331. The second electrode layer 342 may be disposed between the second conductive polymer layer 322 and the second substrate layer 332. For example, 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 surface 312 opposite to the first surface 311 of the liquid crystal layer 310.

[0040] For example, at least one electrode layer 340 may be electrically connected to the wire 610. By supplying power to the at least one electrode layer 340 through the wire 610, the current may flow through the at least one conductive polymer layer 320 and the liquid crystal layer 310. For example, the at least one electrode layer 340 may include a material with relatively high rigidity. The at least one electrode layer 340 may include a metal, but is not limited thereto. For example, the at least one electrode layer 340 may be heated by the heat transferred by the liquid crystal layer 310 and / or the at least one conductive polymer layer 320, thereby at least partially oxidizing. The at least one electrode layer 340 may be discolored or damaged due to oxidation. Therefore, the film 100 and / or the film raw material 300 may need to have a structure that reduces the oxidation of the at least one electrode layer 340.

[0041] According to an embodiment, the film 100 may include at least one coating layer 350, which is interposed between at least one conductive polymer layer 320 and at least one electrode layer 340. For example, the 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 disposed between the first conductive polymer layer 321 and the first electrode layer 341. The second coating layer 352 may be disposed between the second conductive polymer layer 322 and the second electrode layer 342. For example, the first coating layer 351 may be coated on a surface of the first electrode layer 341 facing the liquid crystal layer 310. The second coating layer 352 may be coated on a surface of the second electrode layer 342 facing the liquid crystal layer 310.

[0042] For example, at least one coating layer 350 can separate the liquid crystal layer 310 and / or at least one conductive polymer layer 320 from at least one electrode layer 340. At least one coating layer 350 can include a material with relatively low thermal conductivity. At least one coating layer 350 can include polyurethane, but is not limited thereto. For example, when current flows in the liquid crystal layer 310 and / or at least one conductive polymer layer 320, heat may be released from the liquid crystal layer 310 and / or at least one conductive polymer layer 320. For the film 100, by including at least one coating layer 350 inserted between at least one conductive polymer layer 320 and at least one electrode layer 340, the heat transferred from the liquid crystal layer 310 and / or at least one conductive polymer layer 320 to at least one electrode layer 340 can be reduced. At least one coating layer 350 can reduce the risk of damage to at least one electrode layer 340 caused by heat by insulating the heat transferred from the liquid crystal layer 310 and / or at least one conductive polymer layer 320 to at least one electrode layer 340.

[0043] According to one embodiment, the film 100 and / or the film raw material 300 may have a heat deformation temperature in the range of 350°C to 500°C. For example, by including a first conductive polymer layer 321 and a second conductive polymer layer 322 having relatively high heat resistance, the film 100 and / or the film raw material 300 may have a heat deformation temperature in the range of 350°C to 500°C. For example, by including a first coating layer 351 and a second coating layer 352 having relatively low thermal conductivity, the film 100 and / or the film raw material 300 may have a heat deformation temperature in the range of 350°C to 500°C. For example, compared with laminating ITO (Indium Tin Oxide) on the liquid crystal layer 310, the film 100 and / or the film raw material 300 may improve heat resistance by including at least one conductive polymer layer 320, at least one electrode layer 340, and at least one coating layer 350. However, it is not limited thereto. Since the film raw material 300 has a heat deformation temperature in the range of 350°C to 500°C, the heat generated by the film raw material 300 may be reduced. Figure 2 The possibility of damage to the film raw material 300 caused by heating in step 203 is reduced. In addition, by including at least one coating layer 350 and at least one conductive polymer layer 320, the film 100 is attached to a vehicle (such as Figure 1a The sunroof of the vehicle 10) (such as Figure 1a When the skylight 11 is provided, the heat shielding efficiency of the film 100 against the heat entering through the skylight 11 can be improved.

[0044] According to the above embodiment, the film 100 includes at least one conductive polymer layer 320, so the heat resistance of the film 100 can be improved. The film 100 includes at least one coating layer 350, so the possibility of damage to the at least one electrode layer 340 caused by the heat released by the liquid crystal layer 310 and the at least one conductive polymer layer 320 can be reduced.

[0045] Figure 4 An exemplary thin film heating process is shown.

[0046] Figure 4 The heating process shown can refer to Figure 2 Step 203 in .

[0047] In step 400a, Figure 2The thin film raw material 300 prepared in step 201 may be heated to a temperature within the first reference range. For example, step 400a may be a step of preheating the thin film raw material 300. In step 400a, the thin film raw material 300 may move between the first heater 410 and the second heater 420. The thin film raw material 300 may pass between the first heater 410 and the second heater 420 at a specified speed. For example, in step 400a, the thin film raw material 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 thin film raw material 300 to a temperature within the first reference range. The temperature within the first reference range may be in the range of above 1°C to below 100°C, but is not limited thereto.

[0048] In step 400b, the film raw material 300 heated to a temperature within the first reference range is heated to a temperature within the first reference range. Figure 2 Before vacuum forming is performed in step 205, the film raw material 300 is further heated to a temperature within a second reference range that is higher than the temperature within the first reference range. For example, in step 400b, after being heated by the first area 410a and the second area 420a, the film raw material 300 can move between the third area 410b of 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 can heat the film raw material 300 to a temperature within the second reference range that is higher than the temperature within the first reference range. The temperature within the second reference range can be in the range of more than 100°C to less than 350°C, but is not limited thereto. The film raw material 300 can be easily deformed by being heated to a temperature within the second reference range in step 400b.

[0049] According to the above embodiment, the process of heating the film raw material 300 includes the step of heating the film raw material 300 to a temperature within the first reference range, thereby reducing the possibility of damage to the film raw material 300. The process of heating the film raw material 300 includes the step of heating the film raw material 300 to a temperature within a second reference range higher than the temperature within the first reference range, thereby providing a state in which the film raw material 300 is easily molded in step 205.

[0050] Figure 5 An exemplary film vacuum forming process is shown.

[0051] Figure 5 The vacuum forming process can be referred to Figure 2 Step 205.

[0052] In step 500a, Figure 2The heated film raw material 300 of step 203 may be placed between a mold 510 having a curved surface 511 and a press 520 opposite to the mold 510. For example, in step 500a, a processing area 301 of the film raw material 300 may be placed in a position having a curved surface 511 corresponding to a vehicle (e.g., Figure 1a A sunroof (eg, Figure 1a The processing area 301 may be formed on a curved surface 511 of a mold 510 having a shape of a skylight 11 in the figure and a support surface 512 surrounding the curved surface 511. The processing area 301 may have a size corresponding to a size of a surface of the mold 510 including the curved surface 511 and the support surface 512 and opposite to the press machine 520.

[0053] In step 500b, the film raw material 300 may be pressed onto the mold 510 by the press 520. The space between the mold 510 and the press 520 may be sealed by the press 520. For example, the press 520 presses the processing area 301 on the mold 510 toward the mold 510, thereby sealing the space formed between the processing area 301 and the mold 510 using the curved surface 511 of the mold 510. According to one embodiment, in step 500b, the air inside the space between the mold 510 and the press 520 may be removed. Since the air between the mold 510 and the press 520 is removed, the film raw material 300 sandwiched between the mold 510 and the press 520 may be pressed onto the curved surface 511 of the mold 510. For example, the processing area 301 of the film raw material 300 may be pressed onto 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 can be pressed onto the curved surface 511. Since the processing area 301 has been heated in step 203, the processing area 301 can be deformed into a shape corresponding to the shape of the curved surface 511 by being pressed onto the curved surface 511.

[0054] In step 500c, the pressurization provided by the press 520 applied to the film raw material 300 may be released. The processing area 301 of the film raw material 300 may include: a first portion 301a pressed on the support surface 512 of the mold 510, and a second portion 301b pressed on the curved surface 511 of the mold 510. The second portion 301b may have a shape corresponding to the sunroof 11 of the vehicle 10 by being pressed on the curved surface 511. The processing area 301 including the first portion 301a and the second portion 301b may be moved between the mold 510 and the press 520 for cutting from the film raw material 300.

[0055] According to the above embodiment, the process of vacuum forming the film raw material 300 includes a step of pressing the film raw material 300 onto a mold 510 having a curved surface 511, through which at least a portion of the film raw material 300 (for example, the processing area 301) can be formed into a shape corresponding to the shape of the sunroof 11 of the vehicle 10.

[0056] Figure 6 An exemplary film with wires attached is shown.

[0057] refer to Figure 6 , the film 100 can be connected to the wire 610. The film 100 can refer to, for example Figure 5 The processed region 301 and / or the second portion 301b having a curvature in the processed region 301 after being separated from the film raw material 300. For example, the wire 610 can be electrically connected to at least a portion of the multiple layers in the film 100. For example, in conjunction with reference Figure 3 , one end of the wire 610 can be connected to at least one conductive polymer layer 320 and at least one electrode layer 340 of the film 100. By providing the film 100 in a form connected to the wire 610, a device that is easy to install in a vehicle (e.g., Figure 1a The structure on the vehicle 10).

[0058] According to one embodiment, the film 100 may have a thickness of 0.5 μm. 2 Up to 2m 2 The size (S) of the film 100 may be, for example, a length of 1000 mm or more and 2000 mm or less. The width of the film 100 may be in a range of 700 mm or more and 1500 mm or less. However, this is not limited thereto. For example, by Figure 2 In step 207, the film 100 can be cut from the film raw material 300 into pieces having a thickness of 0.5 mm. 2 Up to 2m 2 The film 100 has a size (S) of 0.5 m. 2 Up to 2m 2 The size (S) can provide a sunroof that can be easily attached to the vehicle 10 (e.g., Figure 1a The film 100 on the skylight 11).

[0059] According to the above embodiment, the film 100 can be provided in a structure that is easy to install on the vehicle 10 by connecting the wire 610. 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.

[0060] Figure 7is a flow chart illustrating a process for installing an exemplary film on a vehicle.

[0061] refer to Figure 7 In step 701, by Figure 2 The process provides a thin film (e.g., Figure 1b The film 100 can be attached to a vehicle (e.g., Figure 1a For example, the film 100 can be attached to a sunroof of the vehicle 10 (e.g., Figure 1a The inner surface (eg, Figure 1a Since the film 100 includes a curvature that makes it have a shape corresponding to the shape of the skylight 11, it can be easily attached to the skylight 11. In addition, since the film 100 has a size corresponding to the size of the skylight 11, it can be easily attached to the skylight 11.

[0062] In step 703, the wires (e.g., Figure 6 The wire 610) can be connected to a controller (e.g., Figure 8 For example, one end of the wire 610 may be connected to at least one conductive polymer layer (eg, Figure 3 at least one conductive polymer layer 320) and at least one electrode layer (e.g., Figure 3 The other end of the wire 610 opposite to the one end may be connected to a controller. Through the wire, the controller may connect power to the film 100. The controller may be configured to control the intensity of the current flowing through the film 100, thereby adjusting the transparency of the film 100.

[0063] According to the above embodiment, the film 100 is provided as a structure connected to the wire 610, so that a structure that is easily mounted to the controller can be realized. The film 100 has a shape corresponding to the sunroof 11 of the vehicle 10, so that it can be easily attached to the sunroof 11.

[0064] Figure 8 A vehicle interior structure is shown with an exemplary film affixed.

[0065] refer to Figure 8, the film 100 can be attached to the sunroof 11 of the vehicle 10. The film 100 can be connected to the first controller 810 through the wire 610. The first controller 810 can apply power to the film 100 through the wire 610. For example, 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 through the power button 811, or cut off the power applied to the film 100. The first controller 810, during the time when power is applied to the film 100, can change the current intensity flowing through the film 100 through the adjustment button 812, thereby adjusting the transparency of the film 100.

[0066] According to an embodiment, the first controller 810 may be controlled by the second controller 820. For example, the second controller 820 may control the first controller 810 through wireless communication. The second controller 820 may apply power to the film 100 or adjust the transparency of the film 100 by controlling the first controller 810.

[0067] According to the above embodiment, the film 100 can be easily mounted to the controller by being provided in a structure connected to the wire 610. In addition, 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.

[0068] According to the above-mentioned embodiment, the film for a vehicle (for example, Figure 1b The film 100 may include: a liquid crystal layer (liquid crystal layer) (for example, Figure 3 a liquid crystal layer 310); laminated on a first surface of the liquid crystal layer (eg, Figure 3 The first conductive polymer layer (eg, Figure 3 a first conductive polymer layer 321); and a second surface (eg, Figure 3 The second conductive polymer layer (eg, Figure 3 a second conductive polymer layer 322); a first substrate layer (substrate layer) on the first conductive polymer layer (for example, Figure 3 a first substrate layer 331 on the second conductive polymer layer; a second substrate layer on the second conductive polymer layer (eg, Figure 3 a second substrate layer 332 of the first conductive polymer layer; a first electrode layer (eg, Figure 3 and a second electrode layer (eg, Figure 3 The film may have a curvature by being at least partially bent.

[0069] According to one embodiment, the film may further include: a first coating layer (eg, Figure 3 A first coating layer 351) and a second coating layer (eg, Figure 3 The first coating layer and the second coating layer may include polyurethane, respectively.

[0070] According to an embodiment, the first conductive polymer layer and the second conductive polymer layer in the film may respectively include plastic. The first electrode layer and the second electrode layer may respectively include metal.

[0071] According to an embodiment, the film may have a heat deflection temperature in a range of 350° C. to 500° C. both inclusive.

[0072] According to one embodiment, the film may have a thickness of 0.5 μm. 2 Up to 2m 2 The size (for example, Figure 6 in S).

[0073] According to an embodiment, a method for manufacturing a film for a vehicle may include the following steps: preparing a film raw material; heating the prepared film raw material; vacuum forming the heated film raw material; and cutting the vacuum formed film raw material.

[0074] According to one embodiment, the step of heating the prepared film raw material may include: heating the prepared film raw material to a temperature within a first reference range. In addition, the step of heating the prepared film raw material may include: after heating to a temperature within the first reference range, before vacuum forming, heating the film raw material to a temperature within a second reference range higher than the temperature within the first reference range.

[0075] According to one embodiment, the step of vacuum forming the heated film raw material may include: placing the heated film raw material between a mold having a curved surface and a press machine opposite to the mold. In addition, the step of vacuum forming the heated film raw material may include: applying pressure to the film raw material by the press machine to seal the inner space of the mold. The step of vacuum forming the heated film raw material may include: removing air inside the sealed mold so that the film raw material is pressed onto the curved surface.

[0076] According to one embodiment, the step of cutting the vacuum-formed film raw material may include: cutting the vacuum-formed film raw material having a curvature portion into 0.5 mm 2 Up to 2m 2 Size within the range.

[0077] According to one embodiment, the thin film raw material may include a liquid crystal layer, at least one conductive polymer layer stacked on the liquid crystal layer, and at least one electrode layer disposed on the at least one conductive polymer layer. The method may also include the step of connecting a wire to the at least one conductive polymer layer and the at least one electrode layer.

[0078] The various implementation examples and the terms used in this document should not limit the technical features in this document to specific implementation examples, but should be understood to include various modifications, equivalents or substitutes of these implementation examples. With regard to the description of the drawings, similar figure marks may be used for similar or related constituent elements. Unless otherwise clearly indicated by the relevant context, the singular form of the noun corresponding to the item may include one or more of the above items. In this document, each of phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "at least one of A, B or C" may include items related to any of the items listed in these phrases, or all possible combinations thereof. Terms such as "1st", "2nd" or "first", "second" and the like are used only to distinguish constituent elements from other constituent elements, without limiting these constituent elements in other aspects (such as importance or order). If a certain (for example, a first) component is "functionally" or "communicatively" coupled or connected to another (for example, a second) component, or in the absence of these terms, it means that any of the above components can be connected to the other component directly (for example, by wire), wirelessly, or through a third component.

[0079] According to various embodiments, each of the above-mentioned constituent elements may include one or more objects, wherein a portion of the plurality of objects may be provided separately from other constituent elements. According to various embodiments, one or more of the above-mentioned constituent elements may be omitted, or one or more other constituent elements may be added. Alternatively or additionally, a plurality of constituent elements may be integrated into one constituent element. In this case, for one or more functions of each of the plurality of constituent elements, the integrated constituent element may be performed in the same or similar manner as the function performed by the corresponding constituent element before integration. According to various embodiments, the process for manufacturing the thin film may be performed sequentially, in parallel, or repeatedly, or one or more of the processes may be performed in a different order, omitted, or one or more other processes may be added.

Claims

1. A film for a vehicle, comprising: Liquid crystal layer; A first conductive polymer layer stacked on a first surface of the liquid crystal layer; a second conductive polymer layer stacked on a second surface opposite to the first surface of the liquid crystal layer; a first substrate layer on the first conductive polymer layer; a second substrate layer on the second conductive polymer layer; a first electrode layer between the first conductive polymer layer and the first substrate layer; as well as a second electrode layer between the second conductive polymer layer and the second substrate layer; The film has a curvature by being at least partially bent.

2. The film according to claim 1, characterized in that Also includes: a first coating layer disposed between the first conductive polymer layer and the first electrode layer; as well as a second coating layer disposed between the second conductive polymer layer and the second electrode layer; Wherein, the first coating layer and the second coating layer respectively contain polyurethane.

3. The film according to claim 1, characterized in that The first conductive polymer layer and the second conductive polymer layer respectively comprise plastics. The first electrode layer and the second electrode layer each contain a metal.

4. The film according to claim 1, characterized in that The film has a heat deformation temperature in the range of 350° C. or more and 500° C. or less.

5. The film according to claim 1, characterized in that The film has a 0.5 m 2 Up to 2m 2 size.

6. A method for manufacturing a film for a vehicle, comprising the following steps: Prepare film raw materials; heating the prepared film raw material; vacuum forming the heated film raw material; and Cut the film raw material after vacuum forming.

7. The method according to claim 6, characterized in that The step of heating the prepared film raw material comprises: heating the prepared film raw material to a temperature within a first reference range; and After being heated to a temperature within the first reference range, the film raw material is heated to a temperature within a second reference range higher than the temperature within the first reference range before vacuum forming.

8. The method according to claim 6, characterized in that The step of vacuum forming the heated film raw material comprises: placing a heated film raw material between a mold having a curved surface and a press machine opposite to the mold; Applying pressure to the film raw material by a press to seal the space between the mold and the press; and The air inside the sealed space is removed so that the film raw material is pressed onto the curved surface.

9. The method according to claim 6, characterized in that The steps of cutting the vacuum formed film raw material include: Cut the film raw material with curvature after vacuum forming into 0.5m 2 Up to 2m 2 Size within the range.

10. The method according to claim 6, characterized in that The film raw materials include: Liquid crystal layer; at least one conductive polymer layer stacked on the liquid crystal layer; and at least one electrode layer disposed on the at least one conductive polymer layer; The method further comprises the following steps: Wires are connected to the at least one conductive polymer layer and the at least one electrode layer.

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