Display devices and vehicles

Abstract

This application relates to the field of vehicle technology and discloses a display device and a vehicle. The display device includes a display screen, a reflector, a beam splitter, and an imaging magnifier. The light-emitting surface of the display screen faces the reflector, which is configured to receive light emitted from the display screen and emit first reflected light. The reflector faces the reflective surface of the beam splitter, which is configured to receive the first reflected light from the reflector, emit second reflected light, and at least partially transmit third reflected light from the imaging magnifier. The imaging magnifier faces the reflective surface of the beam splitter and is configured to receive the second reflected light from the beam splitter and emit third reflected light. The imaging magnifier is capable of magnifying the image displayed on the display screen. The display device and vehicle provided by this application can increase the distance between the human eye and the virtual image, protecting the visual health of rear-seat passengers.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a display device and a vehicle. Background Technology

[0002] Most current in-car entertainment systems are designed for front-seat passengers, neglecting the entertainment experience and vehicle control of rear-seat passengers.

[0003] Therefore, rear-seat entertainment systems have emerged, with many models adding a display device to the front passenger or driver's seat. The display device is installed on the headrest or backrest for rear passengers to enjoy entertainment activities.

[0004] In related technologies, the light emitted from the display screen of the display device shines directly into the human eye. The screen size is small and the imaging distance is close, which may have a certain impact on the passenger's vision. Summary of the Invention

[0005] In view of this, this application provides a display device and vehicle that can increase the distance between the human eye and the virtual image, thereby protecting the visual health of rear passengers.

[0006] Specifically, this application includes the following technical solutions:

[0007] The first aspect of this application provides a display device, which includes a display screen, a reflector, a beam splitter, and an imaging magnifier;

[0008] The light-emitting surface of the display screen is opposite to the reflector, and the reflector is configured to receive the light emitted by the display screen and emit a first reflected light.

[0009] The reflector is opposite to the reflective surface of the beam splitter, and the beam splitter is configured to receive the first reflected light from the reflector, emit the second reflected light, and at least partially transmit the third reflected light from the imaging magnifier.

[0010] The imaging magnifier is opposite to the reflective surface of the beam splitter and is configured to receive a second reflected light from the beam splitter and emit the third reflected light, wherein the imaging magnifier is capable of magnifying the image displayed on the display screen.

[0011] Optionally, the surface of the reflector facing the beam splitter is an arc-shaped surface, and the beam splitter is located on the concave side of the arc-shaped surface.

[0012] Optionally, the optical axis of the display screen coincides with the imaging optical axis.

[0013] Optionally, the display device further includes a first housing and a second housing;

[0014] The first housing has an opening on one side and a first receiving cavity inside. The first housing covers the display screen and the reflector, and the display screen and the reflector are fixed inside the receiving cavity.

[0015] The second housing is connected to the beam splitter to form a component having a second receiving cavity and an opening on one side. The opening side of the component can be engaged with the opening side of the first housing. The imaging magnifier is located inside the second receiving cavity.

[0016] Optionally, the second housing includes a fastener and two side plates;

[0017] The fixing member is located on the side of the imaging magnifier away from the beam splitter and is fixedly connected to the imaging magnifier;

[0018] The two side plates are located on both sides of the imaging magnifier, and the fixing member, one of the side plates, the beam splitter and the other side plate are connected end to end in sequence to form the second receiving cavity.

[0019] Optionally, at least one of the side plates has a triangular orthographic projection along a predetermined direction, and the fixing member and the beam splitter are respectively connected to two opposite sides of the triangle, wherein the predetermined direction is parallel to the arrangement direction of the two side plates; or,

[0020] At least one of the side plates has a trapezoidal orthographic projection along the set direction, and the fixing member and the beam splitter are respectively connected to the two sides of the trapezoid.

[0021] Optionally, the side plate includes a plate surface and a first side surface, a second side surface, and a third side surface arranged sequentially around the plate surface;

[0022] The first side is connected to the beam splitter, the second side is connected to the fixing member and used to fix the display device, and the third side away from the plate surface is connected to the first housing.

[0023] Wherein, at least one of the first side, the second side, and the third side is inclined and not perpendicular to the plate surface.

[0024] Optionally, the opening side of the first housing has a flange, and the opening side of the first housing is connected to the beam splitter, the fixing member and the two side plates respectively through the flange.

[0025] Optionally, the display device further includes a heat sink, which is attached to the outer wall of the first housing on the side opposite to the display screen.

[0026] A second aspect of this application provides a vehicle that includes the aforementioned display device.

[0027] The beneficial effects of the technical solutions provided in this application include at least the following:

[0028] The display device and vehicle provided in this application embodiment first allow light emitted from the display screen to reach a reflector. The reflector then reflects the light to a beam splitter, which in turn reflects it to an imaging magnifier. The imaging magnifier then reflects the light back to the beam splitter, and the light is finally transmitted to the human eye at the beam splitter. Because the imaging magnifier can magnify the image, the user ultimately sees a magnified virtual image of the screen. This provides a better display effect compared to display devices with smaller screen sizes in related technologies, enhancing the user's viewing experience. Furthermore, by adjusting the angle and distance between the reflector and the beam splitter, the final imaging distance can be adjusted, achieving a long-distance display effect. Compared to display devices with shorter imaging distances in related technologies, this better protects the user's eye health and reduces eye strain after prolonged viewing. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This illustration shows a schematic diagram of the structure of a display device provided in an embodiment of this application;

[0031] Figure 2 An exploded view of another display device provided in an embodiment of this application is shown;

[0032] Figure 3 for Figure 2 The assembly diagram of the display device shown is shown.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Display screen;

[0035] 2. Reflector; 21. First reflected light;

[0036] 3. Beam splitter;

[0037] 31. Second reflected light;

[0038] 4. Imaging magnifier; 41. Third reflected light;

[0039] 5. First shell; 51. Flanged edge;

[0040] 6. Second housing; 61. Fastener; 62. Side plate; 621. Plate surface; 622. First side surface; 623. Second side surface; 624. Third side surface;

[0041] 7. Heat dissipation components.

[0042] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. To make the technical solutions and advantages of this application clearer, the display device and vehicle, etc., will be described in detail below with reference to the accompanying drawings.

[0044] Most current in-car entertainment systems are designed for front-seat occupants, neglecting the entertainment experience and vehicle control of rear-seat passengers. Therefore, rear-seat entertainment systems have emerged, with many models adding a display device to the driver or passenger seat, mounted on the headrest or backrest, for rear passengers to enjoy entertainment.

[0045] In related technologies, the light emitted from the display screen of the display device shines directly into the human eye. The screen size is small and the imaging distance is close, which may have a certain impact on the passenger's vision.

[0046] To address the above problems, this application provides a display device. For example... Figure 1 As shown, the display device may include a display screen 1, a reflector 2, a beam splitter 3, and an imaging magnifier 4; the light-emitting surface of the display screen 1 is opposite to the reflector 2, the reflector 2 is configured to receive light emitted from the display screen 1 and emit a first reflected light 21; the reflector 2 is opposite to the reflective surface of the beam splitter 3, the beam splitter 3 is configured to receive the first reflected light 21 from the reflector 2 and emit a second reflected light 31, and at least partially transmit a third reflected light 41 from the imaging magnifier 4; the imaging magnifier 4 is opposite to the reflective surface of the beam splitter 3 and is configured to receive the second reflected light 31 from the beam splitter 3 and emit a third reflected light 41, wherein the imaging magnifier 4 is capable of magnifying the image displayed on the display screen 1.

[0047] In the display device provided in this application embodiment, the light emitted from the display screen 1 first reaches the reflector 2, the reflector 2 reflects the light to the beam splitter 3, the beam splitter 3 reflects the light to the imaging magnifier 4, the imaging magnifier 4 reflects the light to the beam splitter 3, and the light is finally transmitted to the human eye at the beam splitter 3. Since the imaging magnifier 4 can magnify the image, the user finally sees a magnified virtual image of the picture displayed on the display screen 1. Compared with display devices with smaller screen sizes in related technologies, it has a better display effect and can improve the user's viewing experience. Furthermore, by adjusting the angle and distance between the reflector 2 and the beam splitter 3, the final imaging distance can be adjusted, thereby achieving a long-distance display effect. Compared with display devices with shorter imaging distances in related technologies, it can better protect the user's eye health and is less tiring to watch for a long time.

[0048] It should be noted that when a user views the image displayed on the display device, the light entering the human eye can be reflected by the reflective surface of the reflector 2 to the beam splitter 3, and then enter the human eye through the beam splitter 3. The human eye can observe the virtual image located on the side of the imaging magnifier 4 away from the beam splitter 3 along the backward extension line of the light. The distance between the virtual image and the human eye is much greater than the actual distance between the display screen 1 and the human eye, thus achieving the effect of viewing the display image from a distance in a relatively small space.

[0049] In some embodiments, the reflector 2 may be a mirror, and the beam splitter 3 may be a semi-transparent, semi-reflective filter. The mirror may include, for example, a plane mirror, a convex mirror, or a concave mirror.

[0050] In other embodiments, the reflector 2 and beam splitter 3 can also be other forms of optical devices, as long as the reflector 2 can reflect the incident light and the beam splitter 3 can reflect a portion of the incident light and transmit the other portion. For example, the beam splitter 3 can be a prism or a cubic lens.

[0051] Furthermore, at least one semi-transparent and semi-reflective film can be coated or deposited on the reflective surface of the beam splitter 3, and different reflectivity and transmittance of the semi-transparent and semi-reflective film can be selected according to different display needs. The transmissive surface of the beam splitter 3 used to transmit the second reflected light 31 reflected by the reflector 2 can be coated with an anti-reflection film to reduce light loss and thus improve the display effect.

[0052] Similarly, a reflective film can be coated or plated on the reflective surface of the reflector 2 to enhance the reflective effect of the reflector 2, reduce light loss, and thus improve the display effect.

[0053] Optionally, the imaging magnifying element 4 can be a concave mirror, and the focal length of the concave mirror can be greater than the maximum distance between the reflector 2 and the concave mirror. The reflected light incident from the reflector 2 onto the concave mirror can form an upright and magnified virtual image through the concave mirror, thereby magnifying and extending the display image of the display screen 1.

[0054] In some embodiments of this application, the surface of the reflector 2 facing the beam splitter 3 is an arc-shaped surface, and the beam splitter 3 is located on the concave side of the arc-shaped surface.

[0055] When the surface of the reflector 2 that receives the light emitted by the display screen 1 is an arc-shaped surface, the arc-shaped surface has a light-focusing function. The first reflected light 21 generated by the reflector 2 will be focused into a very small area when it reaches the beam splitter 3. That is, the incident angles of all the first reflected light 21 are not much different. When the first reflected light 21 is reflected by the beam splitter 3 onto the imaging magnifier 4, all the second reflected light 31 will also be focused into a very small area (which can be called the incident area). At this time, the size of the imaging magnifier 4 can be adaptively adjusted according to the size of the incident area to reduce the space occupied by the imaging magnifier 4, thereby reducing the size of the display device.

[0056] Optionally, the reflector 2 is a concave mirror.

[0057] In the embodiments of this application, such as Figure 1 As shown, the reflective surface of the reflector 2 can face the user's line of sight, and the reflector 2 and the beam splitter 3 can be at least partially opposite each other. That is, the projection of the beam splitter 3 onto the reflective surface of the reflector 2 can at least partially overlap with the reflective surface of the reflector 2. By setting the reflector 2 and the beam splitter 3 to be at least partially opposite each other, the space requirement for setting the reflector 2 and the beam splitter 3 can be effectively reduced, thereby reducing the size of the display device.

[0058] Optionally, the optical axis of the display screen 1 coincides with the imaging optical axis. The imaging optical axis is the central axis of the display device's field of view. By aligning the screen's optical axis with the imaging optical axis, it is possible to improve image quality, avoid wedge distortion and deformation, and make the imaging more accurate and clear.

[0059] Optionally, the reflecting surface of the reflector 2 and the reflecting surface of the beam splitter 3 can be parallel. It is understood that the "parallelism" described in the embodiments of this application does not require absolute parallelism; it is sufficient to be substantially parallel while meeting certain angular error limits.

[0060] Optionally, the angle between the tangent plane of the outer edge of the reflector 2 near the light-emitting surface and the light-emitting surface is 0-45°, for example, it can be 45°, 40°, 35°, 30°, 25°, 20°, 15°, 10°, 5°, and 0°. For example, such as... Figure 1As shown, the angle between the tangent plane of the reflector 2 and the light-emitting surface is 45°.

[0061] In some embodiments of this application, such as Figure 2 and Figure 3 As shown, the display device may further include a first housing 5 and a second housing 6; the first housing 5 has an opening on one side and a first receiving cavity inside, the first housing 5 covers the display screen 1 and the reflector 2, and the display screen 1 and the reflector 2 are fixed in the first receiving cavity; the second housing 6 is connected to the beam splitter 3, thereby forming a component with a second receiving cavity and an opening on one side, the opening side of the component can be fastened to the opening side of the first housing 5, and the imaging magnifying component 4 is located in the second receiving cavity.

[0062] After the opening side of the first housing 5 aligns with the opening side of the second housing 6, a closed space is formed inside both housings. This closed space encloses the display screen 1, reflector 2, imaging magnifier 4, and beam splitter 3. This effectively traps the light emitted by the display device, as well as the light reflected by the reflector 2, imaging magnifier 4, and beam splitter 3, within the closed space, preventing light leakage and ensuring poor imaging quality. Furthermore, both the first housing 5 and the second housing 6 are components with mounting and fixing functions, capable of fixing the display screen 1 and reflector 2, etc., respectively, within the first and second receiving cavities. This prevents the display screen 1 and reflector 2 from shaking during vehicle movement, ensuring the imaging stability of the display device.

[0063] Optionally, the reflector 2 and the display screen 1 can be detachably connected to the first housing 5 by means of snap-fit ​​connection, adhesive connection, magnetic connection, etc. Those skilled in the art can select and adjust the connection method between the reflector 2 and the display screen 1 and the first housing 5 according to actual needs.

[0064] In some embodiments of this application, such as Figure 2 and Figure 3 As shown, the second housing 6 may include a fixing member 61 and two side plates 62; the fixing member 61 is located on the side of the imaging magnifier 4 away from the beam splitter 3 and is fixedly connected to the imaging magnifier 4; the two side plates 62 are located on both sides of the imaging magnifier 4 respectively, and the fixing member 61, one side plate 62, the beam splitter 3 and the other side plate 62 are connected end to end in sequence to form a second receiving cavity.

[0065] The side of the fastener 61 facing away from the beam splitter 3 can be connected to the seat in the vehicle. The side of the fastener 61 close to the beam splitter 3 is fixedly connected to the imaging magnifier 4. Together with the two side plates 62 and the beam splitter 3, the imaging magnifier 4 is surrounded in the second receiving cavity, and the imaging magnifier 4 and the beam splitter 3 are fixed, which can prevent the imaging magnifier 4 and the beam splitter 3 from shaking during the vehicle's operation.

[0066] In some embodiments of this application, at least one side plate 62 is triangular in orthographic projection along a set direction, and the fixing member 61 and the beam splitter 3 are respectively connected to two opposite sides of the triangle, with the set direction parallel to the arrangement direction of the two side plates 62.

[0067] Both the beam splitter 3 and the fixing member 61 are plate-shaped and have an included angle between them. In one example, the side of the beam splitter 3 away from the display device can be connected to the imaging magnifier 4. In this case, the orthographic projection of the side plate 62 can be triangular, with its three sides connected to the fixing member 61, the beam splitter 3 and the first housing 5, respectively, to close the side of the fixing member 61 and the beam splitter 3.

[0068] The side of the beam splitter 3 away from the display device can be spaced apart from the side of the imaging magnifier 4 away from the reflector 2, so as to avoid collision between the beam splitter 3 and the imaging magnifier 4 during vehicle operation.

[0069] In one example, at least one side plate 62 is trapezoidal in orthographic projection along a predetermined direction, and the fixing member 61 and the beam splitter 3 are respectively connected to the two sides of the trapezoid. The upper base of the trapezoid closes the gap between the beam splitter 3 and the imaging magnifier 4, and the other three sides are respectively connected to the fixing member 61, the beam splitter 3 and the first housing 5 to close the sides of the fixing member 61 and the beam splitter 3.

[0070] In some embodiments of this application, such as Figure 2 As shown, the side plate 62 includes a plate surface 621 and a first side surface 622, a second side surface 623, and a third side surface 624 arranged sequentially around the plate surface; the first side surface 622 is connected to the beam splitter 3, the second side surface 623 is connected to the fixing member 61 and is used to fix the display device, and the side of the third side surface 624 away from the plate surface 621 is connected to the first housing 5; wherein, at least one of the first side surface 622, the second side surface 623, and the third side surface 624 is inclined and not perpendicular to the plate surface 621.

[0071] For example, the first side panel 622 is connected to the beam splitter 3 in a face-to-face contact manner, thereby ensuring a reliable connection and avoiding stress concentration at the connection between the beam splitter 3 and the side panel 62 when the vehicle shakes, thus improving the service life of the beam splitter 3 and the display device.

[0072] For example, the side of the second side 623 away from the first side 622 is connected to the fastener 61, and the second side 623 can also be fixedly connected to the seat frame, thereby achieving the fixation of the display device.

[0073] For example, the side of the third side 624 away from the plate surface 621 is connected to the first housing 5, or the third side 624 is connected to the first housing 5 in a face-to-face contact manner.

[0074] Optionally, at least one of the first side 622, the second side 623, and the third side 624 is inclined such that the further away from the plate surface 621 it is from the center normal of the plate surface 621, the further away it is from the center normal of the plate surface 621. The center normal is a straight line that passes through the center of the plate surface 621 and is perpendicular to the plate surface 621.

[0075] In one example, the second side 623 and the third side 624 are inclined relative to the plate surface 621 in the manner described above, thus having at least the following three advantages:

[0076] Firstly, the distance between the two side plates 62 located on both sides of the imaging magnifier 4 in a set direction is reduced, thereby reducing the size of the display device in the set direction, wherein the set direction is the arrangement direction of the two side plates 62, that is, the length direction of the display device.

[0077] Secondly, compared with the related technology, which completes the connection and installation of all structures through the opposite two sides of a plate, the side plate 62 in this embodiment is connected and assembled with different structures through the first side 622, the second side 623 and the third side 624 respectively, which can distribute the force on the side plate 62 to different directions, thus avoiding stress concentration on the side plate 62.

[0078] Thirdly, since the first side 622 faces the user's side, while the second side 623 and the third side 624 face away from the user's side and face the seat installation side, by tilting the second side 623 and the third side 624, the space occupied by the seat installation can be reduced, and other structures in the seat can be avoided, thus facilitating its installation on the seat frame.

[0079] Optionally, the inclination of the second side 623 and the third side 624 on the side plate 62 can be achieved by cutting a single plate multiple times, which can also reduce the weight of the side plate 62.

[0080] Alternatively, the side panel 62 can also be a one-piece molded structure composed of multiple panels, which can reduce manufacturing costs.

[0081] In some embodiments of this application, such as Figure 2 As shown, the opening side of the first housing 5 has a flange 51, and the opening side of the first housing 5 is connected to the beam splitter 3, the fixing member 61 and the two side plates 62 respectively through the flange 51.

[0082] The space occupied by the display device and the reflector 2 is smaller than that occupied by the imaging magnifier 4 and the beam splitter 3. Therefore, the size of the first cavity of the first housing 5 can be smaller than the size of the second cavity of the second housing 6. By setting a flange 51 on the first housing 5, the connection between the first housing 5 and the imaging magnifier 4, the beam splitter 3 and the side plate 62 can be realized, that is, the size of the first housing 5 is reduced and the space occupied by the display device is reduced.

[0083] In some embodiments of this application, such as Figure 2 As shown, the display device may also include a heat sink 7, which is attached to the outer wall of the first housing 5 on the side away from the display screen 1.

[0084] During long-term operation, the display screen 1 will generate heat. Since the display screen 1 is located in the first receiving cavity, some of the heat will accumulate there. If the heat cannot be dissipated in time, it may affect the performance of the display screen 1.

[0085] Therefore, a heat sink 7 can be provided on the outer wall of the first housing 5. The heat sink 7 can conduct the heat inside the first housing 5 to the outside in a timely manner, thereby effectively cooling the display screen 1.

[0086] Optionally, the heat sink 7 can be a heat sink with good thermal conductivity, such as a heat sink plate or a thermally conductive silicone layer. Those skilled in the art can select and adjust the type of heat sink 7 according to actual needs.

[0087] In some embodiments, the display device may further include an adjustment device that is mechanically connected to the imaging magnifier 4 for adjusting the pitch angle of the imaging magnifier 4 to accommodate the viewing needs of different users. Optionally, the adjustment device may be a gear mechanism / rack structure that meshes with the gear teeth on the imaging magnifier 4; or, the adjustment device may be a drive motor whose output shaft is fixedly connected to the imaging magnifier 4.

[0088] This application also provides a vehicle that includes the aforementioned display device.

[0089] The light emitted from the display screen 1 first reaches the reflector 2, which reflects the light to the beam splitter 3. The beam splitter 3 then reflects the light to the imaging magnifier 4, which reflects the light back to the beam splitter 3. Finally, the light is transmitted to the user's eye at the beam splitter 3. Because the imaging magnifier 4 can magnify the image, the user ultimately sees a magnified virtual image of the picture displayed on the display screen 1. Compared to display devices with smaller screen sizes in related technologies, this provides a better display effect and enhances the user's viewing experience. Furthermore, by adjusting the angle and distance between the reflector 2 and the beam splitter 3, the final imaging distance can be adjusted, thus achieving a long-distance display effect. Compared to display devices with shorter imaging distances in related technologies, this better protects the user's eye health and reduces eye strain after prolonged viewing.

[0090] Furthermore, since the vehicle provided in this application embodiment uses the aforementioned display device, the user's entertainment experience while riding in the vehicle is greatly enhanced, and it will not affect vision health.

[0091] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0092] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0093] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A display device, characterized in that, The display device includes a display screen (1), a reflector (2), a beam splitter (3), and an imaging magnifier (4). The light-emitting surface of the display screen (1) is opposite to the reflector (2), and the reflector (2) is configured to receive the light emitted by the display screen (1) and emit a first reflected light (21). The reflector (2) is opposite to the reflective surface of the beam splitter (3), which is configured to receive the first reflected light (21) from the reflector (2), emit the second reflected light (31), and at least partially transmit the third reflected light (41) from the imaging magnifier (4). The imaging magnifier (4) is opposite to the reflective surface of the beam splitter (3) and is configured to receive the second reflected light (31) from the beam splitter (3) and emit the third reflected light (41), wherein the imaging magnifier (4) is capable of magnifying the image displayed on the display screen (1); The surface of the reflector (2) facing the beam splitter (3) is an arc-shaped surface, and the beam splitter (3) is located on the concave side of the arc-shaped surface.

2. The display device according to claim 1, characterized in that, The optical axis of the display screen (1) coincides with the imaging optical axis.

3. The display device according to claim 1, characterized in that, The display device further includes a first housing (5) and a second housing (6); The first housing (5) has an opening on one side and a first receiving cavity inside. The first housing (5) covers the display screen (1) and the reflector (2), and the display screen (1) and the reflector (2) are fixed inside the first receiving cavity. The second housing (6) is connected to the beam splitter (3) to form a component having a second receiving cavity and an opening on one side. The opening side of the component can be engaged with the opening side of the first housing (5). The imaging magnifier (4) is located in the second receiving cavity.

4. The display device according to claim 3, characterized in that, The second housing (6) includes a fastener (61) and two side plates (62); The fixing member (61) is located on the side of the imaging magnifier (4) away from the beam splitter (3) and is fixedly connected to the imaging magnifier (4). The two side plates (62) are located on both sides of the imaging magnifier (4), and the fixing member (61), one of the side plates (62), the beam splitter (3) and the other side plate (62) are connected end to end in sequence to form the second receiving cavity.

5. The display device according to claim 4, characterized in that, At least one of the side plates (62) has a triangular orthographic projection along a predetermined direction, and the fixing member (61) and the beam splitter (3) are respectively connected to two opposite sides of the triangle, the predetermined direction being parallel to the arrangement direction of the two side plates (62); or, At least one of the side plates (62) has a trapezoidal orthographic projection along the set direction, and the fastener (61) and the beam splitter (3) are respectively connected to the two sides of the trapezoid.

6. The display device according to claim 5, characterized in that, The side panel (62) includes a panel surface (621) and a first side surface (622), a second side surface (623) and a third side surface (624) arranged sequentially around the panel surface (621). The first side (622) is connected to the beam splitter (3), the second side (623) is connected to the fixing member (61) and is used to fix the display device, and the third side (624) is connected to the first housing (5) on the side away from the plate (621). At least one of the first side (622), the second side (623) and the third side (624) is inclined and not perpendicular to the plate surface (621).

7. The display device according to any one of claims 4 to 6, characterized in that, The first housing (5) has a flange (51) on its open side, and the open side of the first housing (5) is connected to the beam splitter (3), the fixing member (61) and the two side plates (62) respectively through the flange (51).

8. The display device according to claim 3, characterized in that, The display device further includes a heat sink (7), which is attached to the outer wall of the first housing (5) on the side away from the display screen (1).

9. A vehicle, characterized in that, The vehicle includes the display device according to any one of claims 1 to 8.

Images