Method for manufacturing a curved cover plate for an automobile

Abstract

To provide a method for manufacturing a curved cover plate for an automobile with improved uniformity of coating.SOLUTION: A method for manufacturing a curved cover plate for an automobile, includes the steps of: preparing a cover plate, which is of a flat plate structure with a first surface and a second surface opposite to each other, and is made of a high molecular polymer material; forming a hardened film on the first surface; forming an anti-glare film on the second surface; forming a printed layer on a partial region of the hardened film; forming a transparent conductive sensing film on the hardened film and the printed layer; performing hot pressing on the cover plate subjected to the above steps, so that the cover plate is formed as a curved surface structure curved in a one-dimensional direction, the first surface and the second surface are formed as curved surfaces, and a curvature radius of the curved surface structure is set between 500 mm and 1,000 mm; performing vapor-deposition processing on the second surface, so that an anti-reflection film is formed on the anti-glare film; and forming a fingerprint prevention film on the anti-reflection film.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an automotive cover plate and a manufacturing method, and particularly to an automotive curved cover plate having a curved surface structure and improved coating uniformity and a manufacturing method thereof.

Background Art

[0002] With the progress of automotive manufacturing technology, the functions and structural designs of automotive panels are becoming diversified. Usually, a glass cover plate is attached to the display surface of an automotive panel. The glass cover plate protects the automotive panel from scratches by foreign objects. On the other hand, it is also possible to print a trademark or a specific pattern on the glass cover plate so that consumers can identify it.

[0003] Conventional automotive panels were mostly flat. In recent years, considering the appearance and the width of the viewing angle, many automotive panels have begun to adopt a curved surface design. However, due to the low plasticity of the glass cover plate, the bending angle is too small to meet the current appearance requirements of automotive panels, and it is also heavy and has a risk of breakage. In addition, in the process of forming an antireflection film by vapor deposition on the outer surface of a glass cover plate having a curved surface, the film thickness uniformity of the formed antireflection film is often poor due to structural and technical constraints of the coating equipment.

[0004] Therefore, how to design an automotive curved cover plate and a manufacturing method that can improve the above-mentioned problems is a research-worthy issue.

Summary of the Invention

[0005] An object of the present invention is to provide a manufacturing method of an automotive curved cover plate having a curved surface structure and improved coating uniformity.

[0006] Another object of the present invention is to provide a structure of an automotive curved cover plate manufactured by the manufacturing method of the automotive curved cover plate.

[0007] To achieve the above object, a method for manufacturing a curved cover plate for an automobile according to the present invention includes the steps of preparing a cover plate having a flat plate structure with opposing first and second surfaces and made of a polymer material; forming a cured film on the first surface; forming an antiglare film on the second surface; forming a printed layer in a partial region of the cured film; forming a transparent conductive sensing film on the cured film and the printed layer; performing a hot press treatment on the cover plate that has undergone the above steps to form a curved surface structure in which the cover plate is curved in a one-dimensional direction, forming the first and second surfaces into curved surfaces, and setting the radius of curvature of the curved surface structure to be between 500 mm and 1000 mm; performing a vapor deposition treatment on the second surface to form an antireflection film on the antiglare film; and forming a fingerprint prevention film on the antireflection film.

[0008] In an embodiment of the present invention, in the steps of forming an antireflection film on the antiglare film and forming a fingerprint prevention film on the antireflection film, the cover plate is moved along an arc-shaped support, and vapor deposition treatment is performed on the second surface of the cover plate by a vapor deposition source, and the cover plate is always kept perpendicular to the vapor deposition angle of the vapor deposition source.

[0009] In an embodiment of the present invention, in the steps of forming an antireflection film on the antiglare film and forming a fingerprint prevention film on the antireflection film, a mounting jig having a mounting table and a free rotation axis is used. The cover plate is placed on the mounting table, the free rotation axis is moved along an arc-shaped support, and the cover plate is freely rotated at an arbitrary position of the arc-shaped support to adjust the arrangement angle of the cover plate with respect to the vapor deposition source.

[0010] In an embodiment of the present invention, before the step of forming an antireflection film on the antiglare film, there is a step of performing an electron gun or thermal vapor deposition treatment on the second surface to form an adhesive layer on the antiglare film.

[0011] In an embodiment of the present invention, the adhesive layer mainly contains silicon monoxide or aluminum oxide.

[0012] In an embodiment of the present invention, the antireflection film includes at least one high refractive index layer and at least one low refractive index layer that are alternately laminated. The high refractive index layer mainly contains at least one of niobium pentoxide, titanium dioxide, tantalum pentoxide, silicon nitride, and hafnium dioxide. The low refractive index layer mainly contains at least one of silicon dioxide, aluminum oxide, and magnesium difluoride.

[0013] In an embodiment of the present invention, the total number of laminations of the antireflection film is 3 to 9.

[0014] In an embodiment of the present invention, the antireflection film corresponds to a wavelength range of 380 nm to 780 nm.

[0015] The structure of the curved surface cover plate for automobiles according to the present invention includes a cover plate, a hardening film, a printing layer, a transparent conductive detection film, an antiglare film, an antireflection film, and a fingerprint prevention film. The cover plate has a curved surface structure curved in a one-dimensional direction, has a first surface and a second surface facing each other, is made of a polymer material, and the radius of curvature of the curved surface structure is between 500 mm and 1000 mm. The hardening film is formed on the first surface, the printing layer is formed in a partial region of the hardening film, the transparent conductive detection film is formed on the hardening film and the printing layer, the antiglare film is formed on the second surface, the antireflection film is formed on the antiglare film, and the fingerprint prevention film is formed on the antireflection film.

[0016] In an embodiment of the present invention, the structure of the curved surface cover plate for automobiles further includes an adhesive layer located between the antiglare film and the antireflection film, and the adhesive layer mainly contains silicon monoxide or aluminum oxide.

[0017] Accordingly, the structure of the curved surface cover plate for automobiles according to the present invention uses a cover plate curved in one-dimensional direction made of a polymer material, so that high plasticity can be obtained to meet the required curved surface curvature, the overall weight is reduced, and the problem of damage can be avoided. Further, in the structure of the curved surface cover plate for automobiles according to the present invention, the antireflection film formed on the cover plate curved in one-dimensional direction has better film thickness uniformity. Moreover, the entire structure of the curved surface cover plate for automobiles is easy to manufacture and can improve the reliability of environmental tests.

Brief Description of the Drawings

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Best Mode for Carrying Out the Invention

[0019] Each aspect and embodiment is merely illustrative and not limiting. After referring to this specification, those with ordinary knowledge can make other aspects and embodiments without departing from the scope of the present invention. According to the following detailed description and the scope of the patent application, the features and advantages of these embodiments will become clearer.

[0020] In this specification, the terms "one" or "a" are used to describe the elements and components described herein. This is for convenience and to give a general meaning to the scope of the present invention. Therefore, unless otherwise indicated, such descriptions are understood to include one or at least one, and the singular form also includes the plural form.

[0021] In this specification, ordinal terms such as "first" and "second" are mainly used to distinguish or refer to the same or similar components and structures, and do not necessarily mean the spatial or temporal ordering of these components and structures. It should be noted that in specific situations and configurations, ordinal terms can be used interchangeably without affecting the implementation of the present invention.

[0022] In this specification, terms such as "comprising", "having", or other similar terms are intended for non-exclusive inclusion. For example, a component or structure comprising a plurality of elements is not limited only to the elements listed in this specification, and may include other elements specific to the component or structure that are not explicitly listed.

[0023] The description will be made with reference to FIGS. 1 and 2. FIG. 1 is a flowchart showing a manufacturing method of the structure of a curved surface cover plate for an automobile according to the present invention. FIG. 2 is a schematic diagram showing the structure corresponding to each step in the manufacturing method of the structure of a curved surface cover plate for an automobile according to the present invention. As shown in FIGS. 1 and 2, the manufacturing method of the structure of a curved surface cover plate for an automobile according to the present invention includes the following steps:

[0024] Step S1: Prepare a cover plate that has a flat plate structure, has opposing first and second surfaces, and is made of a polymer material.

[0025] First, the present invention prepares a cover plate 10 as a base structural member of Structure 1 of the curved surface cover plate for an automobile. The cover plate 10 has a flat plate structure. The cover plate 10 has opposing first surface 11 and second surface 12. The cover plate 10 is mainly made of a transparent polymer material such as polycarbonate (PC) or polymethyl methacrylate (PMMA). The cover plate 10 may be made of other similar materials.

[0026] Step S2: Form a hardening film on the first surface.

[0027] After preparing the cover plate 10 in the above step S1, next, the present invention performs a coating process on the first surface 11 of the cover plate 10 to form a hard coating film 20 on the first surface 11 of the cover plate 10. The hardening film 20 can obtain a scratch-resistant effect mainly by imparting structural strength and hardness to the cover plate 10. Since the material and structure of the hardening film 20 are well-known technologies, the description thereof is omitted.

[0028] Step S3: Form an anti-glare film on the second surface.

[0029] After forming the hardening film 20 in the above step S2, next, the present invention performs another coating process on the second surface 12 of the cover plate 10 to form an anti-glare film 30 on the second surface 12 of the cover plate 10. The anti-glare film 30 is mainly used to reduce the influence of glare caused by external light irradiated on the cover plate 10. Since the material and structure of the anti-glare film 30 are well-known technologies, the description thereof is omitted.

[0030] Step S4: Form a printed layer in a partial area of the cured film.

[0031] After forming the antiglare film 30 in the step S3, next, the present invention executes a printing process on the first surface 11 of the cover plate 10 on which the cured film 20 is formed, and forms a printed layer 40 on the cured film 20. The printed layer 40 mainly uses a colored ink material to form markings, instructions, scales of instruments, trademarks, or specific patterns. The printed layer 40 is formed in a partial area of the cured film 20. Since the material and structure of the printed layer 40 are well-known technologies, the description thereof is omitted.

[0032] Step S5: Form a transparent conductive sensing film on the cured film and the printed layer.

[0033] After forming the printed layer 40 in the step S4, next, the present invention performs another coating process on the first surface 11 on which the cured film 20 and the printed layer 40 are formed, and forms a single-layer or double-layer transparent conductive sensing film 50 on the cured film 20 and the printed layer 40. The transparent conductive sensing film 50 is mainly used as a transparent electrode for providing a touch sensing function of the cover plate 10. Since the material and structure of the transparent conductive sensing film 50 are well-known technologies, the description thereof is omitted.

[0034] Step S6: By performing a hot press process on the cover plate that has undergone the above steps, the cover plate is formed into a curved surface structure that is curved in a one-dimensional direction. The first surface and the second surface are formed into curved surfaces. Also, the radius of curvature of the curved surface structure is set between 500 mm and 1000 mm.

[0035] After the steps S2 to S5, the present invention performs a hot pressing process on the cover plate 10 with the film layer laminated thereon, thereby forming the cover plate 10 into a curved surface structure curved in the one-dimensional direction D. Specifically, the present invention performs hot pressing and bending on the cover plate 10 with the film layer laminated thereon along the one-dimensional direction D from the second surface to the first surface of the cover plate 10 with reference to the axial direction perpendicular to the paper surface of FIG. 2, thereby forming the cover plate 10 into a curved surface structure curved along the one-dimensional direction. Both the first surface 11 and the second surface 12 of the hot-pressed and bent cover plate 10 are formed as curved surfaces. The first surface 11 becomes an inner curved surface, and the second surface 12 becomes an outer curved surface. The radius of curvature of the curved surface structure of the cover plate 10 is between 500 mm and 1000 mm.

[0036] Step S7: By performing a vapor deposition process on the second surface, an anti-reflection film is formed on the anti-glare film.

[0037] After forming the anti-glare film 30 through the steps up to S6, next, the present invention performs another vapor deposition process on the second surface 12 of the cover plate 10 on which the anti-glare film 30 is formed, and forms an anti-reflection film 60 on the anti-glare film 30. The anti-reflection film 60 is mainly used to suppress the reflection of external light and increase the light transmittance. For example, the anti-reflection film 60 corresponds to visible light in the wavelength range of 380 nm to 780 nm. However, the present invention is not limited thereto and may correspond to other wavelength ranges. The vapor deposition process may be a Physical Vapor Deposition (PVD) process or other similar processes.

[0038] A description will be given with reference to FIGS. 3 and 4. FIG. 3 is a schematic diagram showing a state in which an antireflection film is formed on the second surface of a cover plate in a manufacturing method of the structure of a curved surface cover plate for an automobile according to the present invention. FIG. 4 is a schematic diagram showing a mounting jig used in the manufacturing method of the structure of a curved surface cover plate for an automobile according to the present invention. As shown in FIGS. 3 and 4, in order to form the antireflection film 60 on the second surface 12 of the cover plate 10, the manufacturing method of the structure of a curved surface cover plate for an automobile according to the present invention uses the mounting jig A and the dome-shaped arc-shaped support C in the vapor deposition process in step S7, and performs a vapor deposition process on the second surface 12 of the cover plate 10 by the vapor deposition source B.

[0039] The mounting jig A has a mounting table A1 and a free rotation shaft A2. The mounting table A1 is connected to the free rotation shaft A2. The cover plate 10 is placed on the mounting table A1. The mounting surface of the mounting table A1 on which the cover plate 10 is placed corresponds to the curved surface of the first surface 11 of the cover plate 10, so that the first surface 11 of the cover plate 10 is brought into contact and fixed, and the second surface 12 can be easily directed toward the vapor deposition source B. The free rotation shaft A2 moves along the arc-shaped support C and can freely rotate at any position of the arc-shaped support C, so that the arrangement angle of the cover plate 10 with respect to the vapor deposition source B can be adjusted. The free rotation shaft A2 can be a universal joint that slides on the arc-shaped support C. The vapor deposition source B can be set to correspond to the center position or the non-center position of the arc-shaped support C.

[0040] In the manufacturing method of the structure of the curved surface cover plate for automobiles according to the present invention, in the vapor deposition process of step S7, the cover plate 10 is placed and fixed on the mounting table A1 of the mounting jig A, and the mounting jig A is moved along the arc-shaped support C. During the movement of the mounting jig A, by controlling the free rotation axis A2 of the mounting jig A, the arrangement angle of the second surface 12 of the cover plate 10 with respect to the vapor deposition source B is adjusted so that the second surface 12 of the cover plate 10 always faces the vapor deposition source B, and is kept perpendicular to the vapor deposition angle of the vapor deposition source B, thereby facilitating the vapor deposition process performed by the vapor deposition source B on the second surface 12 of the cover plate 10. As a result, in the present invention, the film thickness uniformity of the antireflection film 60 formed on the antiglare film 30 is less than 1.5%. That is, the thickness of the formed antireflection film 60 becomes more uniform.

[0041] Step S8: Form a fingerprint-proof film on the antireflection film.

[0042] After forming the antireflection film 60 in step S7, the present invention performs another vapor deposition process on the second surface 12 of the cover plate 10 on which the antireflection film 60 is formed to form a fingerprint-proof film (anti-fingerprint film) 70 on the second surface 12. The fingerprint-proof film 70 mainly serves to prevent fingerprints and dirt from adhering to the cover plate 10. Since the material and structure of the fingerprint-proof film 70 are well-known technologies, the description thereof is omitted.

[0043] Hereinafter, it will be described with reference to FIGS. 3, 5, and 6. FIG. 5 is a flowchart showing a manufacturing method of the structure of the curved surface cover plate for automobiles according to another embodiment of the present invention. FIG. 6 is a schematic diagram showing the structure of the antireflection film formed by the manufacturing method of the structure of the curved surface cover plate for automobiles according to the present invention. As shown in FIGS. 3, 5, and 6, in another embodiment of the present invention, before forming the antireflection film 60 in step S7, there is a step S61 of performing an electron gun or thermal vapor deposition process on the second surface to form an adhesive layer on the antiglare film.

[0044] After the step S6, the present invention performs an electron gun or thermal evaporation treatment on the anti-glare film 30 toward the second surface 12 of the cover plate 10, thereby forming an adhesive layer 80 on the anti-glare film 30. The adhesive layer 80 is located between the anti-glare film 30 and the anti-reflection film 60. The adhesive layer 80 is mainly used to improve the reliability of the environmental test of the curved surface cover plate 1 for automobiles of the present invention, and examples thereof include a temperature environment test, a humidity environment test, an ultraviolet aging test, and the like. The adhesive layer 80 can assist the adhesion between the anti-glare film 30 and the anti-reflection film 60 formed thereafter. In an embodiment of the present invention, the adhesive layer 80 mainly contains silicon monoxide (SiO) or aluminum oxide (Al2O3). However, the composition of the adhesive layer 80 is not limited thereto. Due to the adhesive layer 80 composed of the above composition, the curved surface cover plate 1 for automobiles according to the present invention can achieve a level of 85 °C / 85% in the temperature humidity bias test (THB) in the environmental test. In the ultraviolet aging test (QUV), a level of 1000 hours can be achieved.

[0045] This will be described with reference to FIGS. 6 to 7B. FIG. 7A is an anti-reflection spectrum diagram of an anti-reflection film formed by a manufacturing method of the structure of a curved surface cover plate for automobiles according to a first embodiment of the present invention. FIG. 7B is an anti-reflection spectrum diagram of an anti-reflection film formed by a manufacturing method of the structure of a curved surface cover plate for automobiles according to a second embodiment of the present invention. As shown in FIG. 6, in the present invention, the anti-reflection film 60 mainly has a multilayer structure in which two types of material layers having different refractive indexes are alternately laminated, and the total number of laminations is 3 to 9. The anti-reflection film 60 includes at least one high refractive index layer 61 and at least one low refractive index layer 62. The high refractive index layer 61 mainly contains at least one of niobium pentoxide (Nb2O5), titanium dioxide (TiO2), tantalum pentoxide (Ta2O5), silicon nitride (SiN), and hafnium dioxide (HfO2). The low refractive index layer 62 mainly contains at least one of silicon dioxide (SiO2), aluminum oxide (Al2O3), and magnesium difluoride (MgF2). However, the composition of the anti-reflection film 60 is not limited thereto.

[0046] In the first embodiment, the high refractive index layer 61 of the antireflection film 60 is made of niobium pentoxide, the low refractive index layer 62 is made of silicon dioxide, and the total number of layers is 4. That is, the odd-numbered layers (i.e., the first layer and the third layer) of the antireflection film 60 are the high refractive index layers 61 made of niobium pentoxide. The even-numbered layers (i.e., the second layer and the fourth layer) of the antireflection film 60 are the low refractive index layers 62 made of silicon dioxide. The compositions and thicknesses of the respective layers of the adhesive layer 80, the antireflection film 60, and the fingerprint prevention film 70 are as shown in Table 1 below. [Table 1]

[0047] As shown in Table 1 and FIG. 7A, the total film thickness of the antireflection film 60 is about 250 nm. The light reflectance of the antireflection film 60 in the corresponding wavelength range gradually decreases from 10% to 0% after 380 nm and is generally maintained at 5% or less up to 780 nm. In this example, it can be seen that the antireflection film 60 maintains a relatively low light reflectance in the wavelength range of visible light, that is, between 380 nm and 780 nm.

[0048] In the second embodiment, the high refractive index layer 61 of the antireflection film 60 is made of titanium dioxide, the low refractive index layer 62 is made of silicon dioxide, and the total number of layers is 4. That is, the odd-numbered layers (i.e., the first layer and the third layer) of the antireflection film 60 are the high refractive index layers 61 made of titanium dioxide. The even-numbered layers (i.e., the second layer and the fourth layer) of the antireflection film 60 are the low refractive index layers 62 made of silicon dioxide. The compositions and thicknesses of the respective layers of the adhesive layer 80, the antireflection film 60, and the fingerprint prevention film 70 are as shown in Table 2 below. [Table 2]

[0049] As shown in Table 2 and FIG. 7B, the total film thickness of the antireflection film 60 is about 240 nm. The light reflectance of the antireflection film 60 in the corresponding wavelength range gradually decreases from 10% to 0% after 380 nm and is generally maintained at 5% or less up to 780 nm. In this example, it can be seen that the antireflection film 60 also maintains a relatively low light reflectance in the visible light wavelength range, that is, between 380 nm and 780 nm.

[0050] FIG. 8 is a schematic diagram showing the structure of a curved cover plate for an automobile according to the present invention. As shown in FIG. 8, the structure 1 of the curved cover plate for an automobile according to the present invention includes a cover plate 10, a cured film 20, a printing layer 40, a transparent conductive detection film 50, an antiglare film 30, an antireflection film 60, and an antifingerprint film 70. The cover plate 10 has a curved surface structure curved in a one-dimensional direction and has a first surface 11 and a second surface 12 facing each other. The cover plate 10 is made of a polymer material. The radius of curvature of the curved surface structure is between 500 mm and 1000 mm. The cured film 20 is formed on the first surface 11. The printing layer 40 is formed in a partial region of the cured film 20. The transparent conductive detection film 50 is formed on the cured film 20 and the printing layer 40. The antiglare film 30 is formed on the second surface 12. The antireflection film 60 is formed on the antiglare film 30. The antifingerprint film 70 is formed on the antireflection film 60.

[0051] The above-described embodiments are merely examples and are not intended to limit the embodiments and applications of the present application. Furthermore, although at least one exemplary example has been shown in the foregoing embodiments, it should be understood that there may be numerous variations of the present invention. Also, the embodiments described herein are not intended to limit the claims, applications, or configurations in any way. Rather, the foregoing embodiments provide a guide for those of ordinary skill in the art to implement one or more of the embodiments. Furthermore, changes can be made to the functions and arrangements of the elements without departing from the scope of the claims, and the scope of the claims includes all known equivalents and all foreseeable equivalents at the time of filing of the present patent application.

Explanation of Reference Numerals

[0052] 1 Structure of a Curved Cover Plate for Automobile 10 Cover Plate 11 First Surface 12 Second Surface 20 Hardened Film 30 Anti-Glare Film 40 Printing Layer 50 Transparent Conductive Detection Film 60 Anti-Reflection Film 70 Fingerprint-Resistant Film 80 Adhesive Layer A Mounting Fixture A1 Mounting Table A2 Free Rotation Axis B Evaporation Source C Arc-Shaped Support D One-Dimensional Direction S1~S8, S61 Steps

Claims

1. A method for manufacturing a curved cover plate for an automobile, comprising: providing a cover plate having a flat structure, the cover plate having opposing first and second surfaces, the cover plate being made of a high molecular weight polymeric material; forming a hardened film on the first surface; forming an anti-glare film on the second surface; forming a printing layer on a portion of the cured film; forming a transparent conductive sensing film on the cured film and the printing layer; A step of forming the cover plate into a curved structure curved in a one-dimensional direction by performing a hot press process on the cover plate that has undergone the above steps, forming the first surface and the second surface into curved surfaces, and setting the radius of curvature of the curved structure to be between 500 mm and 1000 mm; forming an anti-reflection film on the anti-glare film by performing a deposition process on the second surface of the cover plate, the second surface having a curved surface structure curved in a one-dimensional direction; forming an anti-fingerprint film on the anti-reflective film; A method for manufacturing a curved cover plate for an automobile, characterized in that in the step of forming the anti-reflection film on the anti-glare film and the step of forming the anti-fingerprint film on the anti-reflection film, the cover plate is moved in an arc-shaped path along an arc-shaped support, an evaporation source is used to perform an evaporation process on the second surface of the cover plate, and the cover plate is always kept perpendicular to the evaporation angle of the evaporation source.

2. The method for manufacturing a curved cover plate for an automobile, as described in claim 1, characterized in that in the step of forming the anti-reflection film on the anti-glare film and the step of forming the anti-fingerprint film on the anti-reflection film, a mounting jig having a mounting table and a free rotation shaft is used, the free rotation shaft being a ball-shaped universal joint that rotates freely, the cover plate is placed on the mounting table, the free rotation shaft is moved in an arcuate path along the arcuate support, and the cover plate is freely rotated at any position on the arcuate support, thereby adjusting the positioning angle of the cover plate relative to the deposition source so that the center of the cover plate is always perpendicular to the deposition source.

3. 2. The method for manufacturing a curved cover plate for an automobile according to claim 1, further comprising the step of performing an electron gun or thermal evaporation process on the second surface to form an adhesive layer on the anti-glare film before the step of forming the anti-reflection film on the anti-glare film.

4. 4. The method for manufacturing a curved cover plate for an automobile according to claim 3, wherein the adhesive layer comprises silicon monoxide or aluminum oxide.

5. 2. The method for manufacturing a curved cover plate for automobiles according to claim 1, characterized in that the anti-reflection film comprises at least one high refractive index layer and at least one low refractive index layer alternately stacked, the high refractive index layer comprises at least one of niobium pentoxide, titanium dioxide, tantalum pentoxide, silicon nitride, and hafnium dioxide, and the low refractive index layer comprises at least one of silicon dioxide, aluminum oxide, and magnesium difluoride.

6. The method for manufacturing a curved cover plate for an automobile according to claim 5, characterized in that the total number of layers of the anti-reflection film is 3 to 9.

7. The method for manufacturing a curved cover plate for an automobile according to claim 1, wherein the anti-reflection film corresponds to a wavelength range of 380 nm to 780 nm.

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