Film layer assembly, shell and electronic equipment

Abstract

The invention discloses a film layer assembly, a shell and electronic equipment, and belongs to the technical field of electronic equipment. The film layer assembly comprises: a base layer; the birefringent layer is arranged on one side of the substrate layer; the first polarization layer is arranged on the side, away from the substrate layer, of the birefringent layer; and the reflecting layer is arranged between the birefringent layer and the substrate layer or arranged on one side, far away from the birefringent layer, of the substrate layer.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic equipment, and specifically relates to a membrane layer component, a housing and an electronic device. Background Art

[0002] In related technologies, the appearance of electronic products, especially the back cover of mobile phones, directly affects consumers' purchasing decisions and brand recognition. As market competition intensifies, the appearance of mobile phones is no longer just a requirement for functionality and feel, but has become a window to showcase brand personality and technological innovation. Unique appearance design can enhance the visual impact of the product and improve the perceived value of users.

[0003] However, the appearance of the back cover of existing electronic devices is mainly achieved through several methods, such as screen printing, electroplating, spraying and other processes, combined with micro-structure decorative films obtained by embossing or etching processes to achieve the appearance effect. At present, the room for improving the appearance of the shell is getting smaller and smaller, resulting in a poor appearance of the back cover of the electronic device. Therefore, how to further improve the appearance of electronic devices has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The present application aims to provide a film layer assembly, a housing and an electronic device, which can solve the technical problem of poor appearance of the back cover of the electronic device in the related art.

[0005] In a first aspect, an embodiment of the present application provides a membrane layer assembly, comprising:

[0006] basal layer;

[0007] A birefringent layer, disposed on one side of the base layer;

[0008] A first polarizing layer is disposed on a side of the birefringent layer away from the base layer;

[0009] The reflective layer is arranged between the birefringent layer and the base layer, or arranged on a side of the base layer away from the birefringent layer.

[0010] In a second aspect, an embodiment of the present application provides a shell, comprising a substrate and a membrane layer assembly as in the first aspect, wherein the membrane layer assembly covers a surface of one side of the substrate.

[0011] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a display screen, a frame body and a shell as in the second aspect, wherein the display screen and the shell body are respectively arranged on two sides of the frame body.

[0012] The film layer assembly of the embodiment of the present application can decompose the incident light into refracted light of different polarizations and directions after passing through the birefringent layer and the first polarizing layer by providing the birefringent layer and the first polarizing layer, so that a phase difference is generated between the refracted light of different polarizations and directions, thereby generating multiple outgoing light rays that interfere with each other, and further forming interference fringes of multiple colors. In addition, by providing the reflective layer, the light can pass through the birefringent layer and the first polarizing layer twice during propagation, thereby achieving the accumulation of phase differences, thereby making the effect of the interference fringes of multiple colors more obvious, and enabling the user to see the interference fringes of multiple colors on one side of the incident light, thereby improving the appearance of the electronic device.

[0013] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 One of the structural schematic diagrams of the membrane layer assembly of an embodiment of the present application is shown;

[0016] Figure 2 Shows Figure 1 One of the schematic diagrams of light propagation in the membrane component;

[0017] Figure 3 Shows Figure 1 Schematic diagram of light propagation of film components (part 2);

[0018] Figure 4 The second structural schematic diagram of the membrane layer assembly of the embodiment of the present application is shown;

[0019] Figure 5 Shows Figure 4 One of the schematic diagrams of light propagation in the membrane component;

[0020] Figure 6 Shows Figure 4 Schematic diagram of light propagation of film components (part 2);

[0021] Figure 7 The third structural schematic diagram of the membrane layer assembly of the embodiment of the present application is shown;

[0022] Figure 8 Shows Figure 7 Schematic diagram of the structure of the light-emitting layer;

[0023] Fig. 9 A fourth structural schematic diagram of a membrane layer assembly according to an embodiment of the present application is shown;

[0024] Fig.10 A schematic diagram showing the appearance effect of the membrane layer assembly of an embodiment of the present application is shown;

[0025] Fig.11 A schematic diagram showing the structure of a housing according to an embodiment of the present application is shown;

[0026] Fig.12 A schematic structural diagram of an electronic device according to an embodiment of the present application is shown.

[0027] Reference numerals:

[0028] 100 film layer assembly, 102 base layer, 104 birefringent layer, 106 first polarizing layer, 108 reflective layer, 110 liquid crystal layer, 112 alignment film, 114 first electrode layer, 116 second electrode layer, 118 filter layer, 120 second polarizing layer, 122 light emitting layer, 124 light guide plate, 126 light emitting element, 128 protective layer, 130 adhesive layer, 200 housing, 202 substrate, 300 electronic device, 302 display screen, 304 frame. DETAILED DESCRIPTION

[0029] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0030] The features of the terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, and internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Combine the following Figures 1 to 12 A membrane layer assembly, a housing, and an electronic device according to embodiments of the present application are described.

[0033] In some embodiments of the present application, a membrane layer assembly is provided. Figure 1 One of the structural schematic diagrams of the membrane layer assembly of the embodiment of the present application is shown; Figure 1 As shown, the film layer assembly 100 includes: a substrate 102; a birefringent layer 104, which is disposed on one side of the substrate 102; a first polarizing layer 106, which is disposed on a side of the birefringent layer 104 away from the substrate 102; and a reflective layer 108, which is disposed between the birefringent layer 104 and the substrate 102, or disposed on a side of the substrate 102 away from the birefringent layer 104.

[0034] In an embodiment of the present application, a film layer assembly 100 is proposed. The film layer assembly 100 can be covered on the surface of a housing of an electronic device, thereby providing a visual display for the electronic device and bringing a novel appearance effect to the electronic device.

[0035] Specifically, the film layer assembly 100 includes a base layer 102, a birefringent layer 104, a first polarizing layer 106 and a reflective layer 108, wherein the base layer 102 can be used to support the birefringent layer 104, the first polarizing layer 106 and the reflective layer 108 to ensure the stability of the relative positions of the birefringent layer 104, the first polarizing layer 106 and the reflective layer 108.

[0036] Further, the birefringent layer 104 is disposed on one side of the substrate layer 102. Specifically, when the film layer assembly 100 is applied to the back cover of an electronic device, the substrate layer 102 can be covered on the back cover of the electronic device, and the birefringent layer 104 is disposed on the side of the substrate layer 102 away from the back cover of the electronic device. Among them, the birefringent layer 104 has optical anisotropy, that is, for the same beam of light, the birefringent layer 104 has at least two refractive indices. Among them, birefringence is an optical property of a material, which can be explained by the transverse wave properties of light. When light is irradiated to an anisotropic crystal (uniaxial crystal, such as calcite, quartz, ruby, etc.), refraction occurs in two different directions; for a single-light material, when the polarization direction of the light is perpendicular to the optical axis, the refractive index felt by the light is the ordinary light refractive index, called ordinary light or o-ray, and the polarization direction of the other beam of light parallel to the optical axis is called extraordinary light or e-ray. Both beams of light are polarized. When the refractive index of ordinary light is less than that of extraordinary light, it is called a positive uniaxial material. Otherwise, it is called a negative uniaxial material. When light enters the crystal from a special angle, no birefringence will occur. This angle is called the optical axis of the crystal.

[0037] Specifically, after a beam of light enters from one side of the birefringent layer 104, since the birefringent layer 104 has at least two refractive indices, at least two beams of light will emerge from the other side of the birefringent layer 104, and a phase difference will be generated between the at least two beams of light, and their polarization states will also change. The polarization direction of the emergent light depends on the polarization direction of the incident light and the different refractive indices of the birefringent layer 104. For example, when the incident light is linearly polarized light, the emergent light is elliptically polarized light. If the incident light is unpolarized light, that is, the polarization direction of the incident light is randomly distributed, the birefringent layer 104 will act on each polarization component of the incident light separately. The phase difference between the two beams of light can be expressed as 2π×Δn×d÷λ, where Δn=n e -n o , n e is a refractive index of the birefringent layer 104, n o is the other refractive index of the birefringent layer 104, d is the length of the propagation path of the incident light in the birefringent layer 104, and λ is the wavelength of the incident light.

[0038] By disposing the birefringent layer 104, an incident light beam passing through the birefringent layer 104 can generate at least two outgoing light beams, and there is a phase difference between the outgoing light beams, thereby causing at least two outgoing light beams to interfere with each other to form interference fringes of multiple colors. Fig.10 The schematic diagram of the appearance effect of the membrane layer assembly of the embodiment of the present application is shown; Fig.10 As shown, the user can see interference fringes of various colors on the surface of the film layer component 100. When the film layer component 100 is applied to an electronic device, the user can see interference fringes of various colors on the surface of the electronic device, thereby improving the appearance of the electronic device.

[0039] Furthermore, a first polarizing layer 106 is provided on a side of the birefringent layer 104 away from the base layer 102. The first polarizing layer 106 can filter the light passing through, thereby filtering out background light and unnecessary reflected light in the light, so that the light entering the birefringent layer 104 can generate at least two obvious outgoing light rays.

[0040] Furthermore, a reflective layer 108 is provided between the birefringent layer 104 and the base layer 102, or on the side of the base layer 102 away from the birefringent layer 104. The reflective layer 108 allows the light to return after passing through the first polarizing layer 106 and the birefringent layer 104, and pass through the birefringent layer 104 and the first polarizing layer 106 again. Therefore, when the film layer assembly 100 is applied to an electronic device, the user can see interference fringes of various colors on the surface of the electronic device.

[0041] For example, Figure 2 Shows Figure 1 One of the schematic diagrams of light propagation in the membrane component; Figure 3 Shows Figure 1 Schematic diagram of light propagation of film layer components (part 2); Figure 2 and Figure 3 As shown, the polarization direction of the incident light is randomly distributed, and the propagation direction is from left to right, satisfying the right-hand spiral rule. After passing through the first polarization layer 106, it becomes linear polarized light, and then, after passing through the birefringent layer 104, it becomes elliptically polarized light. Due to the optical anisotropy of the birefringent layer 104, the incident light can be decomposed into refracted light of different polarizations and directions. After passing through the birefringent layer 104, a phase difference will occur between the refracted light of different polarizations and directions, thereby generating interference fringes on the surface of the reflective layer 108. Further, after being reflected by the reflective layer 108, it enters the birefringent layer 104 again, and is further decomposed into refracted light of different polarizations and directions, thereby achieving the accumulation of phase differences. After passing through the first polarization layer 106 again, after filtering out the background light, the user can see interference fringes of various colors on one side of the incident light. Among them, in Figure 2 and Figure 3 In the figure, the short vertical line indicates that the light is linearly polarized in the vertical direction, and the ellipse indicates that the light is elliptically polarized.

[0042] The film layer assembly 100 of the embodiment of the present application can decompose the incident light into refracted light of different polarizations and directions after passing through the birefringent layer 104 and the first polarizing layer 106, so that a phase difference is generated between the refracted light of different polarizations and directions, thereby generating multiple outgoing light rays that interfere with each other, and further forming interference fringes of multiple colors. In addition, by setting the reflective layer 108, the light can pass through the birefringent layer 104 and the first polarizing layer 106 twice during the propagation process, thereby achieving the accumulation of phase differences, thereby making the effect of the interference fringes of multiple colors more obvious, and enabling the user to see the interference fringes of multiple colors on one side of the incident light, thereby improving the appearance of the electronic device.

[0043] In some embodiments of the present application, the birefringent layer 104 is made of birefringent crystal material, polyethylene terephthalate material, polycarbonate material or polymethyl methacrylate material.

[0044] In the embodiment of the present application, the birefringent layer 104 can be made of birefringent crystal material. It can be understood that the birefringent properties in the birefringent crystal material are derived from a specific lattice type. Specifically, the birefringent crystal material includes uniaxial crystals and biaxial crystals. When the light passes through the birefringent crystal material, a refractive index is generated when the light passes through the uniaxial crystal, and another refractive index is generated when the light passes through the biaxial crystal. Through the birefringent crystal material, the birefringent layer 104 can generate at least two refractive indices for a beam of light, and then decompose the incident light into refracted light of different polarizations and different directions, so that the refracted light of different polarizations and different directions generates a phase difference, thereby generating multiple outgoing light beams that interfere with each other, and then forming interference fringes of multiple colors.

[0045] The birefringent layer 104 can also be realized by using amorphous materials such as polyethylene glycol terephthalate (PET), polycarbonate (PC), and polymethyl methacrylate (PMMA) to produce refractive index anisotropy caused by internal stress generated by processing various transparent materials. In addition, the amorphous materials have non-uniform stress inside, so that the light can have different refractive indices when passing through the birefringent layer 104, that is, the birefringent layer 104 has at least two refractive indices, and then decomposes the incident light into refracted light with different polarizations and different directions, so that the refracted light with different polarizations and different directions generates a phase difference, thereby generating a plurality of outgoing light rays that interfere with each other, and then forming interference fringes of multiple colors.

[0046] During the material processing process, the molecular chains are stretched or compressed in local areas, resulting in inconsistent light propagation speeds in different directions. Anisotropic stress can be artificially introduced through stretching and compression to produce birefringence. In addition, drastic changes in temperature may also introduce local stress, so local temperature changes can also be artificially introduced to achieve this.

[0047] Specifically, PET, PC and PMMA materials are all transparent materials that are easy to uniaxially stretch. Generally speaking, the higher the flexibility of the molecular chain, the greater the stress optical coefficient, the easier it is to generate stress. The stress birefringence sensitivity PC>PET>PMMA, and the local heating temperature and cooling rate are appropriately increased to generate internal stress, which is contrary to the low-temperature injection molding and slow cooling requirements required by the annealing process. For example, in the process of making the birefringent layer 104, a mold with a target texture or a heated film before pressing can be used to hot-press the amorphous material. After pressing, the area where the birefringence characteristics need to be generated is quickly cooled, so that the internal stress change in the pressed area is more obvious, thereby generating non-uniform stress inside the amorphous material. The specific step conditions can be appropriately adjusted for different material systems.

[0048] In some embodiments of the present application, Fig. 9 The fourth structural schematic diagram of the membrane layer assembly of the embodiment of the present application is shown; Fig. 9 As shown, the birefringent layer 104 includes a liquid crystal layer 110; the film layer assembly 100 also includes: two alignment films 112, respectively arranged on both sides of the liquid crystal layer 110; a first electrode layer 114, arranged between one alignment film 112 and the substrate layer 102; and a second electrode layer 116, arranged between the other alignment film 112 and the first polarization layer 106.

[0049] In the embodiment of the present application, a liquid crystal layer can be used as a birefringent layer of the film layer assembly. It can be understood that liquid crystal is a substance with special optical properties, and its birefringence phenomenon is an important property. Liquid crystal birefringence refers to the birefringence phenomenon caused by the symmetry breaking of the molecular structure when light propagates in liquid crystal. In liquid crystal, light propagates in different directions and generates two mutually perpendicular polarized lights, called fast light and slow light. These two polarized lights differ in propagation path, refraction angle, and optical path difference.

[0050] Furthermore, the birefringent layer 104 of the film layer assembly 100 may further include a liquid crystal layer 110 and alignment films 112 respectively disposed on both sides of the liquid crystal layer 110. In addition, the birefringent layer 104 may further include a first electrode layer 114 and a second electrode layer 116, wherein the first electrode layer 114 is disposed between one alignment film 112 and the substrate layer 102, and the second electrode layer 116 is disposed between the other alignment film 112 and the first polarizing layer 106.

[0051] The alignment film 112 can make the liquid crystal molecules in the liquid crystal layer 110 arranged in a predetermined direction and angle, thereby ensuring that the crystals in the liquid crystal layer 110 are arranged in a predetermined direction. Furthermore, by setting the first electrode layer 114 and the second electrode layer 116, the movement of the crystals in the liquid crystal layer 110 can be controlled when the first electrode layer 114 and the second electrode layer 116 are powered on, so as to achieve control of different refractive indices, thereby changing the arrangement of interference fringes of various colors, so that the user can adjust the arrangement of interference fringes according to actual needs, further improving the appearance of the electronic device.

[0052] In some embodiments of the present application, Fig. 9 As shown, the film layer assembly 100 further includes: a filter layer 118 disposed between the second electrode layer 116 and the first polarization layer 106 , and configured to filter out light reflected by the first electrode layer 114 and the second electrode layer 116 .

[0053] In the embodiment of the present application, when the liquid crystal layer 110 is used as the birefringent layer 104, the film layer assembly 100 may also be provided with a filter layer 118, and the filter layer 118 may be provided between the second electrode layer 116 and the first polarizing layer 106. By providing the filter layer 118, the reflected light generated by the first electrode layer 114 and the second electrode layer 116 may be filtered out, thereby ensuring the viewing effect of the interference fringes formed by the film layer assembly 100.

[0054] It can be understood that since the first electrode layer 114 and the second electrode layer 116 include metal materials, the metal materials will generate reflected light on the surface when exposed to light, and the reflected light will affect the viewing effect of the interference fringes of various colors formed by the film layer assembly 100. Therefore, by setting the filter layer 118, the reflected light generated by the first electrode layer 114 and the second electrode layer 116 can be effectively filtered out.

[0055] Specifically, the filter layer 118 may be a quarter wave plate, through which the reflected light generated by the first electrode layer 114 and the second electrode layer 116 can be effectively filtered out.

[0056] In some embodiments of the present application, Figure 4 The second structural schematic diagram of the membrane layer assembly of the embodiment of the present application is shown; Figure 4 As shown, the film layer assembly 100 further includes: a second polarizing layer 120 disposed between the base layer 102 and the birefringent layer 104, wherein the angle between the polarization direction of the second polarizing layer 120 and the polarization direction of the first polarizing layer 106 is greater than 0 degree and less than 90 degrees.

[0057] In the embodiment of the present application, the film layer assembly 100 may further include a second polarizing layer 120, which may be disposed between the base layer 102 and the birefringent layer 104. The second polarizing layer 120 may further enhance the effect of filtering out the background light, and may increase the contrast of the interference fringes generated by the light whose polarization and phase change after passing through the birefringent layer 104, thereby further enhancing the effect of the interference fringes generated by the light after passing through the birefringent layer 104.

[0058] Specifically, the angle between the polarization direction of the second polarization layer 120 and the polarization direction of the first polarization layer 106 is greater than 0 degrees and less than 90 degrees. It can be understood that when the polarization directions of the first polarization layer 106 and the second polarization layer 120 are perpendicular to each other, the contrast of the interference fringes generated by the light after passing through the birefringent layer 104 is higher and the interference fringes are more obvious. However, the background color of the interference fringes will be darker. On the contrary, when the polarization directions of the first polarization layer 106 and the second polarization layer 120 are not perpendicular, that is, when the angle between the polarization direction of the second polarization layer 120 and the polarization direction of the first polarization layer 106 is greater than 0 degrees and less than 90 degrees, the brightness of the background color of the interference fringes can be increased, and the observation effect of the interference fringes can be improved. The angle between the polarization directions of the first polarization layer 106 and the second polarization layer 120 can be adjusted according to actual needs to meet the needs of users.

[0059] For example, Figure 5 Shows Figure 4 One of the schematic diagrams of light propagation in the membrane component; Figure 6 Shows Figure 4 Schematic diagram of light propagation of film layer components (part 2); Figure 5 and Figure 6As shown, the polarization direction of the incident light is randomly distributed, and the propagation direction is from left to right, which satisfies the right-hand spiral rule. After passing through the first polarization layer 106, it becomes linear polarized light, and then, after passing through the birefringent layer 104, it becomes elliptically polarized light. Due to the optical anisotropy of the birefringent layer 104, the incident light can be decomposed into refracted light of different polarizations and different directions. After passing through the birefringent layer 104, a phase difference will occur between the refracted light of different polarizations and different directions. Further, the light continues to pass through the second polarization layer 120. In the case where the polarization directions of the first polarization layer 106 and the second polarization layer 120 are perpendicular, the light passing through the second polarization layer 120 will completely filter out the light with the same polarization direction as the first polarization layer 106, leaving only the light corresponding to the polarization direction of the second polarization layer 120, and the light will interfere with each other to form interference fringes of multiple colors. Furthermore, after being reflected by the reflective layer 108, the light enters the second polarizing layer 120, the birefringent layer 104 and the first polarizing layer 106 again, and repeats the previous filtering and interference process, thereby further improving the effect of the interference fringes. Figure 5 and Figure 6 In the figure, the short vertical line indicates that the light is linearly polarized in the vertical direction, the ellipse indicates that the light is elliptically polarized, and the dot indicates that the light is linearly polarized perpendicular to the vertical direction. The size of the ellipse and the circle indicates the strength of the polarization of the light. The larger the size, the stronger the polarization, and the smaller the size, the weaker the polarization.

[0060] In some embodiments of the present application, Figure 7 The third structural schematic diagram of the membrane layer assembly of the embodiment of the present application is shown; Figure 7 As shown, the reflective layer 108 is arranged on the side of the base layer 102 away from the birefringent layer 104, and the film layer assembly 100 also includes: a light-emitting layer 122, which is arranged between the reflective layer 108 and the base layer 102, and the light-emitting layer 122 is used for emitting light. The light emitted by the light-emitting layer 122 is reflected by the reflective layer 108 and passes through the base layer 102, the birefringent layer 104 and the first polarizing layer 106 in sequence.

[0061] In the embodiment of the present application, the reflective layer 108 may be disposed on a side of the substrate layer 102 away from the birefringent layer 104, and the film layer assembly 100 may further include a light emitting layer 122, which is disposed between the reflective layer 108 and the substrate layer 102. When the light emitting layer 122 emits light, at least a portion of the light can be reflected by the reflective layer 108, and sequentially pass through the substrate layer 102, the birefringent layer 104, and the first polarizing layer 106, thereby forming interference fringes of multiple colors, so that the user can see interference fringes of multiple colors on the surface of the electronic device, thereby improving the appearance of the electronic device.

[0062] By setting the light-emitting layer 122, the active light emission of the film component 100 can be realized, and interference fringes of various colors can be formed. When the ambient light is dim, the active light emission of the light-emitting layer 122 enables the user to still see the interference fringes of various colors through the film component 100, thereby further improving the appearance of the electronic device. Furthermore, the effect of the interference fringes of various colors formed by the film component 100 can be changed by adjusting the light-emitting brightness of the light-emitting element, so as to further meet the needs of users.

[0063] In some embodiments of the present application, Figure 8 Shows Figure 7 Schematic diagram of the structure of the light-emitting layer; Figure 8 As shown, the light-emitting layer 122 includes: a light guide plate 124 disposed between the reflective layer 108 and the base layer 102 ; and a light-emitting element 126 disposed on at least one side of the light guide plate 124 .

[0064] In the embodiment of the present application, the light emitting layer 122 may include a light guide plate 124 and a light emitting element 126, wherein the light guide plate 124 is disposed between the reflective layer 108 and the base layer 102, and the light emitting element 126 is disposed on at least one side of the light guide plate 124. By disposing the light emitting element 126, the light emitting layer 122 may emit light, and by disposing the light guide plate 124, the light emitted by the light emitting element 126 may be guided, so that the light emitted by the light emitting element 126 is more uniform, thereby ensuring that the interference fringes formed by the light passing through the birefringent layer 104 are more obvious.

[0065] Specifically, the light emitting element 126 may be a plurality of light emitting diodes, and the plurality of light emitting diodes may be arranged around the circumference of the light guide plate 124 , thereby further improving the uniformity of the light emitted by the light emitting element 126 .

[0066] In some embodiments of the present application, Figure 1 , Figure 4 , Figure 7 and Figure 8 As shown, the film layer assembly 100 further includes: a protective layer 128 disposed on a side of the first polarizing layer 106 away from the birefringence layer 104 .

[0067] In an embodiment of the present application, the film layer assembly 100 may further include a protective layer 128, and the protective layer 128 is arranged on a side of the first polarizing layer 106 away from the birefringent layer 104. When the film layer assembly 100 is used in an electronic device, the protective layer 128 is located on a side away from the surface of the electronic device. The protective layer 128 can protect the first polarizing layer 106, the birefringent layer 104 and the base layer 102 of the film layer assembly 100, thereby ensuring the service life of the film layer assembly 100.

[0068] Specifically, the protective layer 128 can be made of a transparent material with high wear resistance to ensure that the interference fringes generated after passing through the birefringence layer 104 and the first polarization layer 106 can be seen by the user, and to ensure the wear resistance of the film layer assembly 100 when the user uses the electronic device, thereby improving the service life of the film layer assembly 100.

[0069] In some embodiments of the present application, Figure 1 , Figure 4 , Figure 7 and Figure 8 As shown, the film layer assembly 100 further includes: a plurality of adhesive layers 130 , wherein the base layer 102 and the birefringent layer 104 , and the first polarizing layer 106 and the birefringent layer 104 are bonded together by the adhesive layers 130 .

[0070] In the embodiment of the present application, the film layer assembly 100 may further include a plurality of adhesive layers 130 , through which the adhesive layers 130 may be used to achieve a stable connection between the base layer 102 and the birefringent layer 104 , and between the first polarizing layer 106 and the birefringent layer 104 .

[0071] In addition, it can be understood that when the film layer assembly 100 is provided with the second polarizing layer 120 , the second polarizing layer 120 and the base layer 102 , and the second polarizing layer 120 and the birefringent layer 104 can also be bonded via the bonding layer 130 .

[0072] In some embodiments of the present application, Fig.11 The schematic diagram of the structure of the housing of the embodiment of the present application is shown in FIG. Fig.11 As shown, a housing 200 is provided, comprising a substrate 202 and a membrane layer assembly 100 as in any one of the above embodiments, wherein the membrane layer assembly 100 covers a surface of one side of the substrate 202 .

[0073] Since the housing 200 provided in the embodiment of the present application has the membrane layer assembly 100 as in any of the above embodiments, it has the beneficial effects of any of the above embodiments, which will not be described in detail here.

[0074] In some embodiments of the present application, Fig.12 A schematic diagram of the structure of an electronic device according to an embodiment of the present application is shown. Fig.12 As shown, an electronic device 300 is provided, including: a display screen 302 , a frame body 304 and the housing 200 of the above embodiment, wherein the display screen 302 and the housing 200 are respectively arranged on two sides of the frame body 304 .

[0075] Furthermore, the electronic device 300 provided in the embodiment of the present application has the housing 200 as in any of the above embodiments, and thus has the beneficial effects of any of the above embodiments, which are not elaborated here one by one.

[0076] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0077] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A membrane layer component, characterized in that: include: Basal layer; A birefringent layer, disposed on one side of the base layer; A first polarizing layer, disposed on a side of the birefringent layer away from the base layer; The reflective layer is arranged between the birefringent layer and the base layer, or arranged on a side of the base layer away from the birefringent layer.

2. The membrane layer assembly according to claim 1, characterized in that: The birefringent layer is made of birefringent crystal material, polyethylene terephthalate material, polycarbonate material or polymethyl methacrylate material.

3. The membrane layer assembly according to claim 1, characterized in that: The birefringent layer includes a liquid crystal layer, and the film layer assembly further includes: Two alignment films are respectively arranged on two sides of the liquid crystal layer; A first electrode layer, disposed between one of the alignment films and the base layer; The second electrode layer is arranged between the other alignment film and the first polarization layer.

4. The membrane layer assembly according to claim 3, characterized in that: The membrane layer assembly also includes: The filter layer is disposed between the second electrode layer and the first polarization layer, and is used for filtering the light reflected by the first electrode layer and the second electrode layer.

5. The membrane layer assembly according to any one of claims 1 to 4, characterized in that: Also includes: The second polarizing layer is disposed between the base layer and the birefringent layer, and the angle between the polarization direction of the second polarizing layer and the polarization direction of the first polarizing layer is greater than 0 degree and less than 90 degrees.

6. The membrane layer assembly according to any one of claims 1 to 4, characterized in that: The reflective layer is arranged on a side of the base layer away from the birefringence layer, and the film layer assembly further comprises: The light emitting layer is arranged between the reflective layer and the base layer. The light emitting layer is used for emitting light. The light emitted by the light emitting layer is reflected by the reflective layer and passes through the base layer, the birefringent layer and the first polarizing layer in sequence.

7. The membrane layer assembly according to claim 6, characterized in that: The light-emitting layer comprises: A light guide plate, disposed between the reflective layer and the base layer; The light emitting element is arranged on at least one side of the light guide plate.

8. The membrane layer assembly according to any one of claims 1 to 4, characterized in that: Also includes: The protection layer is arranged on a side of the first polarizing layer away from the birefringence layer.

9. The membrane layer assembly according to any one of claims 1 to 4, characterized in that: Also includes: A plurality of adhesive layers, wherein the base layer and the birefringent layer, and the first polarizing layer and the birefringent layer are bonded together by the adhesive layers.

10. A housing, characterized in that: The invention comprises a substrate and a membrane layer assembly as claimed in any one of claims 1 to 9, wherein the membrane layer assembly covers a surface of one side of the substrate.

11. An electronic device, characterized in that: include: A display screen, a frame body and a shell as claimed in claim 10, wherein the display screen and the shell body are respectively arranged on two sides of the frame body.

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