Privacy structure and vehicle

Abstract

This application provides a privacy screen structure and a vehicle. The privacy screen structure includes a glass assembly and a display assembly; the glass assembly has a linear polarizing film configured such that light perpendicular to the direction of the linear polarizing film passes through with a probability of less than 1%; the display assembly includes a display screen that images, and the display screen is configured to absorb light in the same direction as the linear polarizing film and reflect light perpendicular to the direction of the linear polarizing film; the incident angle of the light perpendicular to the direction of the linear polarizing film is 85°~90°.

Description

Technical Field

[0001] This application relates to the field of vehicles, and more particularly to a privacy screen structure and a vehicle. Background Technology

[0002] Currently, some vehicles are equipped with devices such as projection screens to enhance the user experience. However, these setups lack privacy, as pedestrians or people in vehicles behind can also see the image while passengers inside the vehicle are watching. While tinted privacy windows or sunshades are used to improve privacy, these methods compromise the visibility of the vehicle through the windows. Utility Model Content

[0003] To address the challenge of balancing privacy of in-vehicle projection screens with unobstructed vehicle visibility, this application provides an anti-peeping structure and vehicle that can achieve both.

[0004] This application provides a privacy screen structure, comprising a glass assembly and a display assembly. The glass assembly has a linear polarizing film configured such that light perpendicular to the direction of the linear polarizing film passes through with a probability of less than 1%. The display assembly includes a display screen that images light and is configured to absorb light in the same direction as the linear polarizing film and reflect light perpendicular to the direction of the linear polarizing film; the incident angle of the light perpendicular to the direction of the linear polarizing film is 85° to 90°.

[0005] Understandably, by configuring the glass assembly so that most light with the same direction as the linear polarizing film can pass through while most light with the direction perpendicular to the linear polarizing film cannot pass through, the light reflected from the display screen that is perpendicular to the direction of the linear polarizing film is mostly unable to pass through the glass assembly. This prevents people outside the vehicle from seeing the image on the display screen through the glass assembly, improving privacy inside the vehicle without affecting the vehicle's visibility.

[0006] In one embodiment, the display component further includes a projector for emitting image light toward the display screen, the projector being configured to emit light toward the display screen perpendicular to the direction of the linearly polarizing film.

[0007] In one embodiment, the display screen is configured to reflect the received image light to form light perpendicular to the direction of the linear polarizing film.

[0008] In one embodiment, the display screen includes a screen body and a wire grid, the wire grid being disposed on the light-incident surface of the screen body, the wire grid being configured to absorb light in the same direction as the linear polarizing film and allow light perpendicular to the direction of the linear polarizing film to pass through.

[0009] In one embodiment, the glass assembly includes a first glass element and a linear polarizing film, the linear polarizing film being attached to the first glass element.

[0010] In one embodiment, the glass assembly includes a second glass element, a third glass element, and a linear polarizing film, the linear polarizing film being located between the second glass element and the third glass element.

[0011] In one embodiment, the glass assembly includes a light-transmitting region and a light-blocking region, the light-blocking region being disposed around the light-transmitting region, and the linear polarizing film filling the light-transmitting region.

[0012] In one embodiment, the light-blocking area is filled with a splicing layer connected to the outer periphery of the linear polarizing film, and the splicing layer is configured to block light from passing through.

[0013] In one embodiment, the second glass element is bonded to the linear polarizing film via an inner adhesive layer, and the third glass element is bonded to the linear polarizing film via an outer adhesive layer; both the inner and outer adhesive layers are configured to allow light to pass through.

[0014] This application also provides a vehicle including the privacy screen structure described above.

[0015] Understandably, vehicles with the aforementioned privacy screens allow people outside the vehicle to see inside but almost not the screen, thus improving privacy while maintaining a clear view. Attached Figure Description

[0016] Figure 1 This is a side view of a vehicle provided in an embodiment of this application.

[0017] Figure 2 This is a perspective view of a vehicle provided in an embodiment of this application.

[0018] Figure 3 This is a side view of a privacy structure provided in another embodiment of this application.

[0019] Figure 4 An exploded schematic diagram of a glass assembly of a privacy screen structure provided in another embodiment of this application.

[0020] Figure 5 An exploded schematic diagram of the glass assembly in another embodiment of the privacy structure provided in another embodiment of this application.

[0021] Explanation of key component symbols: 100. Privacy protection structure; 1. Glass assembly; 11. First glass element; 12. Linear polarizing film; 13. Second glass element; 14. Third glass element; 15. Light-transmitting area; 16. Light-blocking area; 161. Splicing layer; 17. Inner adhesive layer; 18. Outer adhesive layer; 2. Display assembly; 21. Display screen; 211. Light-receiving surface; 22. Projector; 200. Vehicle; L1. First ray; L2. Second ray.

[0022] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0023] The following description will be given with reference to the accompanying drawings for a more complete description of the present application. The drawings illustrate exemplary embodiments of the present application. However, the present application may be implemented in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals denote the same or similar components. The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the present application. As used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context clearly indicates otherwise. Furthermore, when used herein, “comprising” and / or “including” and / or “having,” integers, steps, operations, components, and / or components, but without excluding the presence or addition of one or more other features, regions, integers, steps, operations, components, and / or groups thereof. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless explicitly defined herein, terms such as those defined in a general dictionary should be interpreted as having the same meaning as they have in the relevant technology and in the content of this application, and should not be interpreted as having an idealized or overly formal meaning.

[0024] like Figure 1 and Figure 2 As shown, this application provides a vehicle 200, which may be, for example, a fuel vehicle (such as a gasoline vehicle, a diesel vehicle, etc.), an electric vehicle (such as a pure electric vehicle, a fuel cell vehicle), or a hybrid electric vehicle.

[0025] The vehicle 200 has a glass assembly 1, which can be installed in the window for lighting and separating the interior and exterior spaces of the vehicle 200. The glass assembly 1 can be the windshield, rear windshield, side window, etc. of the vehicle 200.

[0026] The interior space of the vehicle 200 is equipped with a display component 2 for displaying images. The display component 2 may be a display screen 21 or a projector 22. When the projector 22 projects image light, it can be displayed on the display screen 21.

[0027] In other embodiments, the display component 2 may be a fixed projector or a portable detachable projector that can project onto a sun visor, seat back panel, or portable screen.

[0028] In this embodiment, the display component 2 and the glass component 1 constitute a privacy protection structure 100, which can realize privacy protection inside the vehicle 200, as will be described exemplarily below.

[0029] like Figure 3 and Figure 4 As shown, this application embodiment also provides a privacy screen structure 100, which includes a glass assembly 1 and a display assembly 2. The glass assembly 1 has a linear polarizing film 12, which allows light perpendicular to the direction of the linear polarizing film 12 to pass through with a probability of less than 1%, and allows light in the same direction as the linear polarizing film 12 to pass through. Light in the same direction as the linear polarizing film 12 is S-polarized light, and light perpendicular to the direction of the linear polarizing film 12 is P-polarized light. The display assembly 2 includes a display screen 21 and a projector 22. The projector 22 emits image light onto the display screen 21, and the display screen 21 receives the image light to form an image. The display screen 21 is configured to absorb S-polarized light in the image light and reflect P-polarized light in the image light. The incident angle of light perpendicular to the direction of the linear polarizing film 12 is 85°~90°.

[0030] In this embodiment, the linear polarizing film 12 can be an S-type linear polarizing film. The image light emitted by the projector 22 is the first light ray L1, and the light ray formed after reflection by the display screen 21 is the second light ray L2. The first light ray L1 can emit only P-type polarized light, or it can emit light containing both P-type and S-type polarized light. After the S-type polarized light is absorbed by the display screen 21, the second light ray L2 reflected by the display screen 21 is P-type polarized light that hits the glass assembly 1. The glass assembly 1 can be the windshield, rear windshield, side window, etc. of the vehicle 200, and the glass assembly 1 can be provided with, for example, a linear polarizing film 12 covering the glass so that the glass assembly 1 allows most of the S-type polarized light to pass through and blocks most of the P-type polarized light from passing through.

[0031] In other embodiments, the glass assembly 1 may be provided with a wire grid polarizer or a birefringent crystal polarizer, which can allow S-type polarized light to pass through while P-type polarized light cannot pass through; no further restrictions are imposed here.

[0032] In this embodiment, the projector 22 can be a projector, which can be fixedly connected to the center console, roof, or behind the seats in the vehicle, or detachably connected to interior components via a bracket, suction cup, or magnetic attachment; no further restrictions are imposed here. The display screen 21 receives the image light projected by the projector 22 and forms an image so that occupants of the vehicle can see the image through the display screen 21. The display screen 21 receives the image light projected by the projector 22 and reflects P-type polarized light to the glass assembly 1, so that the light received by the glass assembly 1 is P-type polarized light. Since the glass assembly 1 blocks most of the P-type polarized light from passing through, occupants outside the glass assembly 1 cannot see the content reflected by the display screen 21, thus improving privacy.

[0033] Understandably, by configuring the glass assembly 1 to allow most S-polarized light to pass through while blocking most P-polarized light from passing through, most of the P-polarized light projected by the reflector 22 on the display screen 21 cannot pass through the glass assembly 1. This prevents people outside the vehicle from seeing the image on the display screen 21 through the glass assembly 1, improving privacy inside the vehicle without affecting the visibility of the vehicle 200.

[0034] In one embodiment, the projector 22 is configured to emit P-type polarized light toward the display screen 21.

[0035] In this embodiment, the projector 22 may employ a partial laser diode (e.g., a side-emitting laser) which has polarization characteristics and outputs mainly P-polarized light, so that the projector 22 emits only P-polarized light. Alternatively, a wire grid polarizer or polarizing film may be placed in front of the lens of the projector 22 to allow only P-polarized light to pass through, thus ensuring that the light projected from the projector 22 onto the display screen 21 is only P-polarized light, and consequently, the light reflected from the display screen 21 is also only P-polarized light.

[0036] It is understandable that the projector 22 emits only P-type polarized light, so that the light received by the display screen 21 is all P-type polarized light and the reflected light is also P-type polarized light. This ensures that the image light received by the glass assembly 1 is P-type polarized light and prevents most of the P-type polarized light from passing through, so that external personnel cannot view the content on the display screen 21 inside the glass assembly 1, thereby improving privacy.

[0037] In one embodiment, the display screen 21 is configured to reflect the received image light to form P-type polarized light.

[0038] In this embodiment, the projector 22 may emit not only P-type polarized light, but also light with both P-type and S-type polarization. In this case, the display screen 21 can be configured so that the image light received by the display screen 21 is reflected to form P-type polarized light. Specifically, the display screen 21 may be a metal-coated screen, such as an aluminum screen or a silver screen, or a polarization-selective optical film may be added to reflect the image light received by the display screen 21 to form P-type polarized light. No further restrictions are imposed here.

[0039] It is understandable that the display screen 21 is configured so that some of the image light received by the display screen 21 is reflected to form P-type polarized light, ensuring that the image light received by the glass assembly 1 is P-type polarized light, and preventing the P-type polarized light from passing through the glass assembly 1.

[0040] In one embodiment, the display screen 21 includes a screen body and a wire grid, the wire grid being disposed on the light-incident surface 211 of the screen body, and the wire grid being configured to absorb S-type polarized light and allow P-type polarized light to pass through.

[0041] In this embodiment, the wire grid absorbs S-polarized light but allows P-polarized light to pass through. The wire grid can be set with a linewidth of ≈80nm, and a highly conductive metal (such as gold, silver, or aluminum) wire grid can be selected to improve reflectivity. The specific choice of wire grid is not limited here.

[0042] It is understandable that the setting of the grid covering the light-incident surface 211 of the screen body causes some of the image light received by the display screen 21 to be reflected to form P-type polarized light, thereby ensuring that the image light received by the glass assembly 1 is P-type polarized light, and that the P-type polarized light cannot pass through the glass assembly 1, so that people outside the glass assembly 1 cannot see the image on the display screen 21.

[0043] Further integration Figure 5 As shown, in one embodiment, the glass assembly 1 includes a first glass element 11 and a linear polarizing film 12, the linear polarizing film 12 being attached to the first glass element 11.

[0044] In this embodiment, the first glass element 11 can be made of tempered glass, which is a single layer. The linear polarizing film 12 can be attached to the inner surface of the first glass element 11, that is, the side of the first glass element 11 facing the inside of the vehicle. The linear polarizing film 12 can cover the entire surface of the first glass element 11 to ensure that P-type polarized light cannot pass through the first glass element 11. Due to Malus's law, transmittance = cos... 2 When θ = 85°, the transmittance is ≈1%. Therefore, it is better for the linear polarizing film 12 to be set at an angle of 85°~90° with the direction of light vibration reflected by the display screen 21, so as to prevent P-type polarized light from passing through the first glass component 11 to a large extent.

[0045] It is understandable that by attaching a linear polarizing film 12 to the first glass element 11, P-type polarized light cannot pass through the first glass element 11, thereby enabling the glass assembly 1 to block most of the P-type polarized light from passing through.

[0046] In one embodiment, the glass assembly 1 includes a second glass element 13, a third glass element 14, and a linear polarizing film 12, the linear polarizing film 12 being located between the second glass element 13 and the third glass element 14.

[0047] In this embodiment, the second glass element 13 and the third glass element 14 can form a laminated glass, with the second glass element 13 and the third glass element 14 serving as the outer glass sheet and the inner glass sheet, respectively, to sandwich the linear polarizing film 12 between them. Similarly, the linear polarizing film 12 is positioned at an angle of 85° to 90° with the vibration direction of the light reflected from the display screen 21, so that P-type polarized light cannot pass through the glass assembly 1 as much as possible.

[0048] It is understandable that by providing a second glass element 13 and a third glass element 14 and placing the linear polarizing film 12 between the second glass element 13 and the third glass element 14, the risk of the linear polarizing film 12 being scratched or delaminating can be avoided.

[0049] In one embodiment, the glass assembly 1 includes a light-transmitting region 15 and a light-blocking region 16, the light-blocking region 16 being disposed around the light-transmitting region 15, and the linear polarizing film 12 filling the light-transmitting region 15.

[0050] In this embodiment, the glass assembly 1 may have a light-blocking area 16. The light-blocking area 16 is opaque, which can directly prevent people outside the vehicle 200 from seeing the image on the display screen 21 through the light-blocking area 16. The light-transmitting area 15 is at risk of being seen by people outside the vehicle 200. Therefore, the linear polarizing film 12 can cover the light-transmitting area 15 so that people outside the vehicle 200 also cannot see the content on the display screen 21 through the light-transmitting area 15.

[0051] In one embodiment, the light-blocking area 16 is filled with a splicing layer 161, which is connected to the outer periphery of the linear polarizing film 12 and is configured to block light from passing through.

[0052] In this embodiment, the splicing layer 161 is made using splicing PVB technology and is made of opaque PVB material to fill the light-blocking area 16. The splicing layer 161 is connected to the outer periphery of the linear polarizing film 12 to form a ring, which can reduce the amount of linear polarizing film 12 used.

[0053] In one embodiment, the second glass element 13 is bonded to the linear polarizing film 12 via an inner adhesive layer 17, and the third glass element 14 is bonded to the linear polarizing film 12 via an outer adhesive layer 18; both the inner adhesive layer 17 and the outer adhesive layer 18 are configured to allow light to pass through.

[0054] In this embodiment, the inner adhesive layer 17 and the outer adhesive layer 18 can be made of light-transmitting PVB film. This allows the second glass component 13, the third glass component 14 and the linear polarizing film 12 to be better connected. At the same time, the splicing layer 161, which is also made of PVB material, is also better connected to the inner adhesive layer 17 and the outer adhesive layer 18, which helps to improve the overall integrity of the glass assembly 1.

[0055] This application provides a vehicle 200, which includes the privacy screen structure 100 as described above.

[0056] Understandably, the vehicle 200, including the aforementioned privacy screen 100, allows people outside the vehicle to see inside but almost not see the screen 21, thus improving privacy while ensuring visibility.

[0057] The specific embodiments of this application have been described above with reference to the accompanying drawings. However, those skilled in the art will understand that various changes and substitutions can be made to the specific embodiments of this application without departing from the spirit and scope of this application. All such changes and substitutions fall within the scope defined by this application.

Claims

1. A privacy structure, characterized by, The privacy protection structure includes: A glass assembly having a linear polarizing film configured such that light perpendicular to the direction of the linear polarizing film passes through with a probability of less than 1%. The display assembly includes a display screen that images light and is configured to absorb light in the same direction as the linear polarizing film and reflect light perpendicular to the direction of the linear polarizing film; the incident angle of the light perpendicular to the direction of the linear polarizing film is 85° to 90°.

2. The privacy structure of claim 1, wherein, The display assembly further includes a projector for emitting image light toward the display screen, the projector being configured to emit light toward the display screen perpendicular to the direction of the linearly polarizing film.

3. The privacy structure of claim 2, wherein, The display screen is configured to reflect the received image light to form light perpendicular to the direction of the linear polarizing film.

4. The privacy structure of claim 3, wherein, The display screen includes a screen body and a wire grid. The wire grid is disposed on the light-incident surface of the screen body and is configured to absorb light with the same direction as the linear polarizing film and allow light with the direction perpendicular to the linear polarizing film to pass through.

5. The privacy structure of claim 1, wherein, The glass assembly further includes a first glass element, to which the linear polarizing film is attached.

6. The privacy structure of claim 1, wherein, The glass assembly includes a second glass element and a third glass element, with the linear polarizing film located between the second glass element and the third glass element.

7. The privacy structure of claim 6, wherein, The glass assembly includes a light-transmitting region and a light-blocking region, the light-blocking region being disposed around the light-transmitting region, and the linear polarizing film filling the light-transmitting region.

8. The privacy structure of claim 7, wherein, The light-blocking area is filled with a splicing layer, which is connected to the outer periphery of the linear polarizing film and is configured to block light from passing through.

9. The privacy structure of claim 6, wherein, The second glass element is bonded to the linear polarizing film via an inner adhesive layer, and the third glass element is bonded to the linear polarizing film via an outer adhesive layer; both the inner and outer adhesive layers are configured to allow light to pass through.

10. A vehicle characterized by comprising: include: The privacy structure as described in any one of claims 1-9.

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