Display equipment and vehicles

Abstract

A display device (100) and a vehicle are disclosed. The display device (100) includes a curved mirror (20) and a bracket assembly (30). The curved mirror (20) is fixed within a housing (10) of the display device (100) via the bracket assembly (30). The bracket assembly (30) includes a plurality of brackets arranged at intervals. The brackets are attached and fixed to the back surface of the curved mirror (20). The plurality of brackets includes a first bracket (31) and a second bracket (32). The first bracket (31) and the second bracket (32) are distributed at both ends of the curved mirror (20) in the longitudinal direction. The first bracket (31) and the second bracket (32) are rotatably fitted to the housing (10), allowing the curved mirror (20) to be rotatably positioned within the housing (10). The curved mirror (20) is attached to the housing (10) via separate brackets, which reduces the overall structural size of the bracket assembly (30), thereby reducing the impact of differential deformation caused by mismatched expansion coefficients on the mounting strength, improving the stability of the curved mirror (20), and meeting the assembly requirements for large curved mirrors (20). The impact of its own weight and internal stress in the bonding layer on the surface shape of the curved mirror (20) is also reduced, ensuring image quality and compactness.

Description

Technical Field

[0001] This application relates to the field of display technology, particularly to display devices and vehicles.

Background Art

[0002] With the development of display technology, projection displays are widely applied. For example, Head Up Display (HUD) technology has been increasingly widely applied in fields such as the automotive field, aerospace, and navigation in recent years. For example, in the automotive field, a head-up display device projects important driving information such as speed and navigation onto the front windshield in front of the driver, and then the important driving information is reflected by the front windshield to directly form a virtual image within the driver's line of sight, so that the driver can visually recognize the information without lowering the line of sight. Thereby, the risk of distracted driving caused by lowering the driver's line of sight can be avoided, and safety can be improved.

[0003] Head-up display devices typically include an image generation module and optical elements. The optical elements may include a curved mirror. The surface of the curved mirror is a reflective surface. The image generation module is configured to generate image information (which may include, for example, speed and navigation information). The reflective surface of the curved mirror reflects the image information onto the windshield for the driver to see. The curved mirror is rotatably positioned within the housing of the head-up display device via an enclosure frame, allowing adjustment of the projection angle and position of the curved mirror to meet various display requirements. The enclosure frame may include a base plate and a frame positioned on the base plate. The curved mirror is embedded in the enclosure frame, and the surface of the curved mirror opposite the reflective surface may be fixed to the base plate by a joint, with the frame positioned around the curved mirror. However, in order to achieve a wide field-of-view display for head-up display devices, the size of the curved mirror is increasing, for example, its length exceeding 350 mm, and the length and area of ​​the enclosure frame are increasing accordingly. However, there is a large difference between the coefficient of thermal expansion (CTE) of the enclosure frame and the coefficient of thermal expansion of the curved mirror. As a result, the difference in thermal expansion deformation between the enclosure frame and the curved mirror increases, generating strong internal stresses that affect the joint strength between the curved mirror and the enclosure frame, and reducing the positional stability of the curved mirror. [Overview of the project]

[0004] This invention provides a display device and vehicle that effectively reduces the deformation difference between the bracket assembly and the curved mirror caused by the difference in expansion coefficients, thereby meeting the stable and reliable assembly requirements for large curved mirrors.

[0005] A first aspect of the present application provides a display device comprising a housing, a curved mirror and a bracket assembly located within the housing. The curved mirror has a reflective surface and is positioned within the housing via the bracket assembly.

[0006] The bracket assembly includes multiple spaced brackets, each individually mounted and secured to the surface of the curved mirror opposite the reflective surface. The brackets include at least a first and a second bracket, each distributed at both ends of the curved mirror's longitudinal direction. The first and second brackets are individually rotatably fitted into the housing, thus ensuring that the curved mirror is balanced and stably secured within the housing. In other words, the curved mirror is rotatably positioned within the housing via two separately positioned brackets, meeting the requirements for a stable assembly. Because the curved mirror is positioned within the housing via the bracket assembly, and the forces acting during rotation directly act on the bracket assembly, the influence of external forces on the topography of the curved mirror can be reduced or avoided. This helps ensure the image quality of the curved mirror.

[0007] Furthermore, the small length and size of the separate, independent brackets reduce the overall structural size of the bracket assembly, thereby reducing the expansion of the bracket assembly. This reduces the deformation difference between the bracket assembly and the curved mirror caused by the difference in expansion coefficients, and the impact of deformation caused by the mismatch in expansion coefficients of the bracket assembly and the curved mirror on the stress of the joint layer is reduced. This reduces or avoids the risk of damage to the joint layer between the bracket and the curved mirror, effectively improving the stability and reliability of the curved mirror's placement. In this way, the bracket assembly can realize the assembly of large curved mirrors and meet the assembly requirements for large curved mirrors. Because the length and size of the brackets are small, materials with a low expansion coefficient can be used as the molding material for the brackets, which increases the strength of the brackets and ensures appropriate rigidity of the bracket assembly. This helps to improve the assembly strength of the curved mirror.

[0008] Furthermore, the brackets are lightweight, and their light weight allows for the assembly of large curved mirrors. In this way, the influence of the bracket's weight on changes in the surface shape of the curved mirror is effectively reduced, thereby minimizing the impact on image formation by the curved mirror. In addition, multiple small brackets can be flexibly arranged, resulting in a compact layout. This also contributes to the miniaturization of the entire display device. The area of ​​the bonding layer between the bracket and the curved mirror is also small, and the influence of internal stress in the adhesive bonding layer on the surface shape of the curved mirror is also small. This also contributes to improved image quality.

[0009] In possible embodiments, the device further includes a drive piece fixed to the housing. The drive piece fits into a bracket assembly and is configured to rotate the curved mirror via the bracket assembly, thereby directing the driving force to the bracket assembly. This reduces or avoids the risk of surface shape changes caused by the driving force acting on the curved mirror, further ensuring the image quality of the curved mirror.

[0010] In possible embodiments, the brackets further include a third bracket located between the first and second brackets, with the drive piece fitting into the third bracket. Since the driving and acting forces of the housing during rotation are distributed across the third, first, and second brackets, the concentration of forces on the brackets is reduced, and internal stresses between the brackets and the curved mirror are decreased. This contributes to improved joint strength between the entire bracket assembly and the curved mirror.

[0011] In possible embodiments, a third bracket is provided with an alignment base, which is connected to a push rod of a drive piece, and the drive piece is configured to push and pull the third bracket to rotate the curved mirror. In this way, the curved mirror is rotated by pushing and pulling the push rod of the drive piece. This structure is simple and easy to implement.

[0012] In possible embodiments, the first rotating portion is positioned at the end of the first bracket, facing away from the second bracket, and the housing is provided with a first rotating groove that engages with the first rotating portion, and the first bracket provides a rotatable connection via the engagement between the first rotating portion and the first rotating groove.

[0013] A second rotating part is positioned at the end of the second bracket, facing away from the first bracket. The housing is provided with a second rotating groove that engages with the second rotating part, and the second bracket achieves a rotatable connection through the engagement between the second rotating part and the second rotating groove. The first bracket and the second bracket achieve rotatable engagement with the housing via the first and second rotating parts, respectively. This achieves a rotatable engagement between the bracket assembly, the curved mirror, and the housing. This structure is simple and easy to implement.

[0014] In possible embodiments, the bracket is provided with a first positioning structure, and the curved mirror is provided with a second positioning structure that engages with the first positioning structure. The bracket and the curved mirror are positioned by the engagement between the first and second positioning structures. The first and second positioning structures are used to achieve precise positioning of the bracket relative to the curved mirror. This facilitates alignment of the bracket and the curved mirror during the assembly process and contributes to improved assembly accuracy.

[0015] In possible embodiments, the curved mirror is provided with a protruding limiting pole, and the bracket is provided with a limiting portion, with the end face of the limiting pole abutting against the limiting portion for a secure fit. The distance between the bracket and the curved mirror is limited by the limiting pole, and because the height of the limiting pole can be precisely controlled, the distance between the bracket and the curved mirror can be precisely controlled. This improves the positional accuracy of the curved mirror within the housing, improves the optical imaging accuracy of the curved mirror, and helps to further improve the image quality of the display device.

[0016] In possible embodiments, the device further includes a bonding layer, through which the bracket is attached to and secured to the curved mirror. This facilitates assembly. Furthermore, compared to connection methods such as screws or clamps, this helps reduce the impact on the surface shape of the curved mirror.

[0017] In possible embodiments, the bracket includes a mounting surface and side wall surfaces positioned around the mounting surface, and a bonding layer is filled between the mounting surface and the curved mirror.

[0018] On the surface of the curved mirror opposite the reflective surface, a protruding connecting piece is provided. This connecting piece is located on the outer circumference of the side wall surface, and a bonding layer is filled between the connecting piece and the side wall surface. Further connecting pieces positioned on the curved mirror are bonded to the side wall surface of the bracket. This further increases the bonding area between the bracket and the curved mirror, thereby improving the bonding strength between the bracket and the curved mirror.

[0019] In possible embodiments, the connecting piece includes a plurality of first sub-ribs, which are spaced apart. This facilitates the demolding of the connecting piece formed during imaging of the curved mirror, and reduces or avoids the effect of demolding on the surface shape of the curved mirror.

[0020] In possible embodiments, alignment grooves are provided on the mounting surface, and protruding auxiliary ribs are provided at the bottom of the alignment grooves.

[0021] On the surface of the curved mirror opposite the reflective surface, a protruding annular auxiliary piece is provided. The auxiliary piece is inserted into an alignment groove, an auxiliary rib is inserted into the auxiliary piece, and a bonding layer is filled between the auxiliary rib and the auxiliary piece. By adding auxiliary ribs and auxiliary pieces, the bonding area between the bracket and the curved mirror can be increased. This helps to improve the bonding strength between the bracket and the curved mirror, and to improve the stability and reliability of the curved mirror's placement.

[0022] In possible embodiments, the shape of the auxiliary rib includes at least a cruciate shape. The cruciate structure can increase the area of ​​the auxiliary rib, thereby increasing the contact area between the auxiliary rib and the bonding layer. This helps to improve the bonding strength between the bracket and the curved mirror.

[0023] In possible embodiments, the auxiliary piece includes a plurality of second sub-ribs, which are spaced apart. This facilitates the demolding of the auxiliary piece during the molding of the curved mirror, simplifying the demolding process and reducing or avoiding the impact of demolding on the surface shape of the curved mirror.

[0024] In possible embodiments, a through-slot is provided on the mounting surface, and a protruding boss is provided on the surface of the curved mirror opposite the reflective surface, and this boss is inserted into the through-slot. The fitting of the boss and the through-slot can serve a positioning function. Furthermore, a bonding layer may be filled between the boss and the through-slot. By adding the boss and through-slot, the bonding area between the bracket and the curved mirror can be further increased, and the bonding strength between the bracket and the curved mirror can be improved.

[0025] In possible embodiments, the device further includes an image generation module configured to form a display image, and a curved mirror configured to reflect the display image from the image generation module.

[0026] The second aspect of the present application provides a vehicle including any one of the aforementioned display devices attached to the vehicle.

Brief Description of the Drawings

[0027] [Figure 1] It is a diagram showing a display scenario of a head-up display device in a vehicle according to an embodiment of the present application. [Figure 2] It is a diagram showing the structure of a display device according to an embodiment of the present application. [Figure 3] It is a diagram showing the split structure of a display device according to an embodiment of the present application. [Figure 4] It is a diagram showing the assembled structure of a curved mirror and a bracket assembly according to an embodiment of the present application. [Figure 5] It is a diagram showing the split curved mirror and bracket assembly according to an embodiment of the present application. [Figure 6] It is a diagram showing the structure of a first bracket according to an embodiment of the present application. [Figure 7] It is a diagram showing the back structure of a curved mirror according to an embodiment of the present application. [Figure 8] It is a diagram showing the partial structure of part A in FIG. 7. [Figure 9] It is an enlarged view of the partial structure of part B in FIG. 6. [Figure 10] It is a diagram showing the front structure of an assembled bracket and a curved mirror according to an embodiment of the present application. [Figure 11] It is a diagram showing the structure of a second bracket according to an embodiment of the present application. [Figure 12] It is a diagram showing the structure of a third bracket according to an embodiment of the present application. [Figure 13] It is a diagram showing the assembled third bracket and curved mirror according to an embodiment of the present application.

[0028] [Explanation of Reference Signs] 100: Display device, 10: Housing, 11: Upper housing, 12: Lower housing, 20: Curved mirror, 20a: Reflective surface, 20b: Back surface, 211a, 211b, 211c: Second positioning structure, 211l: Reinforcement rib, 212a, 212b, 212c: Restriction posts, 213a, 213b, 213c: Connecting pieces, 2131: First sub-rib, 214a, 214b, 214c: Auxiliary pieces, 2141: Second sub-rib, 215a, 215b, 215c: Boss, 30: Bracket assembly, 31: First bracket, 311: First rotating part, 32: Second bracket, 321: Second rotating part, 33: Third bracket, 311a, 321a, 331a: Mounting surface, 312a, 322a, 332a: First positioning structure, 313a, 323a, 333a: Restricting section, 314a, 324a, 334a: Alignment groove, 315a, 325a, 335a: Auxiliary rib, 316a, 326a, 336a: Side wall surface, 317a, 327a, 337a: Mounting surface, 318a, 328a, 338a: Through slot, 339: Alignment base, 40: Drive piece, 41: Push rod, 50: Image generation module. [Modes for carrying out the invention]

[0029] The terms used in the embodiments of this Application are used solely to describe the specific embodiments of this Application and are not intended to limit the Application.

[0030] Embodiments of the present invention provide a display device which is a display device based on projection technology and can realize image display of a display image by projecting the formed display image onto an imaging area. The display device may be a head-up display device, or, in some possible examples, the display device may be a display device used to realize projection display in virtual reality (VR) technology or enhanced reality (AR) technology.

[0031] In the embodiments of this application, for example, the display device is a head-up display device. Head-up display devices can be applied to the automotive sector (e.g., intelligent vehicles), the aerospace sector (e.g., aircraft such as airplanes), and the navigation sector (e.g., ships), etc. For example, a head-up display device (HUD device) mounted on a vehicle will be described as an example.

[0032] Figure 1 shows a display scenario for a head-up display device in a vehicle according to one embodiment of the present invention.

[0033] As shown in Figure 1, the vehicle includes a body (not shown) and a windshield component 200 located at the front end of the body. The windshield component 200 may be a windshield located at the front end of the body.

[0034] Of course, in some other examples, the vehicle may further include other structures to complete the vehicle's function. For example, the vehicle may further include a braking system, a drive system, cameras, sensors, and so on.

[0035] The vehicle further includes a display device 100. The display device 100 may be located below the windshield 200, for example, below the vehicle's dashboard housing. The display device 100 may include an image generation module 50 and a reflective unit. Since the windshield has a curved lens structure, the reflective unit is mainly a curved mirror 20, which has a reflective surface. The image generation module 50 can form a display image including one or more of road information, speed information, driving indicator information, and navigation information, and project the display image onto the reflective surface of the curved mirror 20. The reflective surface of the curved mirror 20 can reflect the display image onto the windshield component 200. The windshield component 200 reflects the display image, which can be received by the driver's eye 300. The display image is reflected by the windshield component 200, and a visible virtual image is formed in the imaging region on the side of the windshield component 200 that is away from the driver's eye 300, so that the display image is displayed and the driver can obtain relevant information about the windshield ahead. This reduces traffic risks caused by distraction and other factors.

[0036] The display device 100 may further include a housing (not shown). The image generation module 50 and the curved mirror 20 are arranged within the housing, and a transparent area may be formed on the housing. The display image reflected by the curved mirror 20 can be projected onto the windshield component 200 through the transparent area.

[0037] In other examples, the windshield component may be another type of mechanical component, such as an imaging screen. The display device 100 projects the display image onto the imaging area on the imaging screen and displays the display image in the imaging area.

[0038] With the continued development of head-up display technology for vehicles, head-up display technology is gradually evolving into Augmented Reality Head-up Displays (AR-HUDs). AR-HUD display devices have a wide field of view (FOV) and can overlay digital images onto the actual road environment outside the vehicle, allowing drivers to experience augmented reality visual effects. This is used to realize scenarios such as AR navigation, adaptive cruise control, and lane departure warning, and to improve the driver experience. In AR-HUD display devices, the size of the curved mirror of the AR-HUD display device is usually large; for example, the length of the curved mirror is usually more than 350 mm.

[0039] Furthermore, to meet various display requirements, the curved mirror can be rotatably incorporated into the housing of the display device, allowing it to be rotated. In this way, the projection position and projection angle of the curved mirror onto the windshield component can be changed. Also, when the display device is not in use, the reflective surface of the curved mirror can be reversed to reduce or prevent ambient light from shining on the reflective surface through the transparent area of ​​the housing, thereby reducing the influence of ambient light on the reflective surface.

[0040] In the prior art, the rotating shaft and drive accessories can be integrated with the curved mirror. The curved mirror can be rotatably positioned within the housing via the rotating shaft. The display device may further include a motor. The motor can cooperate with the drive accessories. The motor can rotate the curved mirror via the drive accessories. However, when the size of the curved mirror is large (e.g., when the length exceeds 300 mm), the curved mirror becomes heavy, and therefore the requirements for the strength of the rotating shaft and drive accessories increase, which in turn increases the requirements for the strength of the molding material of the curved mirror, making it difficult to meet. Furthermore, the driving force of the drive piece and the forces acting between the rotating shaft and the housing during the rotation process act directly on the curved mirror. This has a significant effect on the surface shape of the curved mirror, affecting the image formation of the curved mirror and degrading the image quality of the display device.

[0041] Therefore, in the prior art, the curved mirror can be alternatively separated from the rotating shaft and drive piece. For example, the curved mirror is located within a housing via a housing frame, which includes a bottom plate and a frame positioned around the bottom plate. The curved mirror may be attached to the bottom plate in an adhesive manner, and the entire curved mirror is embedded within the housing frame by the housing frame surrounding it. The rotating shaft may be located on both sides of the frame. The rotating shaft is rotatably fitted into the housing, and the curved mirror is rotatably positioned within the housing via the housing frame. The drive accessory may also be located on one side of the frame and fitted to a motor, which rotates the housing frame and the curved mirror.

[0042] However, there is a large difference between the thermal expansion coefficients of the enclosure frame and the curved mirror. For example, enclosure frames are typically made of materials with a low expansion coefficient and high strength. However, curved mirrors usually have a high expansion coefficient, and the amount of expansion is generally related to their length and area. When the size of the curved mirror is large, the size of the enclosure frame, such as its length and area, also increases, resulting in a large expansion of the enclosure frame and a small expansion of the curved mirror. In this way, a large difference in expansion and deformation occurs between the enclosure frame and the curved mirror. At high or low temperatures, the difference in deformation between the enclosure frame and the curved mirror becomes large, generating strong internal stress. As a result, the joint strength between the enclosure frame and the curved mirror decreases, creating a risk of adhesive failure and reducing the stability and reliability of the curved mirror's placement.

[0043] Furthermore, the heavy housing frame generates forces on the curved mirror due to its own weight, which alters the surface shape of the curved mirror and affects the image quality. In addition, the housing frame is thick and bulky. Thus, the overall size of the display device is large, requiring it to occupy a significant amount of space. Moreover, the large contact area between the housing frame and the curved mirror means that internal stress in the adhesive also significantly affects the surface shape of the curved mirror. This degrades image quality.

[0044] Based on this, the display device provided in the embodiment of the present invention allows for the rotatable arrangement of a curved mirror within the housing by using multiple brackets with short lengths. When the assembly requirements for the curved mirror are met, the deformation difference caused by the difference between the expansion coefficient of the bracket and the expansion coefficient of the curved mirror can be effectively reduced, and the influence of its own weight and internal stress of the bonding adhesive on the surface shape of the curved mirror can be further reduced. Furthermore, by achieving stable and reliable assembly of large curved mirrors, miniaturization can be achieved while ensuring image quality.

[0045] The display device provided in the embodiment of this application will be described in detail below with reference to the attached drawings.

[0046] Figure 2 shows the structure of a display device according to one embodiment of the present invention. Figure 3 shows the segmented structure of a display device according to one embodiment of the present invention.

[0047] As shown in Figures 2 and 3, the display device 100 may include a housing 10, a curved mirror 20, and a bracket assembly 30. The housing 10 may be used as the bearing mechanism for the entire display device 100. The cavity may be located inside the housing 10. The curved mirror 20, bracket assembly 30, and drive piece 40, etc., included in the display device 100 may all be located inside the cavity of the housing 10. For example, as shown in Figure 3, the housing 10 may include an upper housing 11 and a lower housing 12, which are fastened together to form the housing 10.

[0048] The curved mirror 20 may include a reflective surface 20a, and an image generation module (not shown) may be further arranged within the housing 10. The image generation module can form a display image to be projected and project the formed display image onto the reflective surface 20a of the curved mirror 20. The reflective surface 20a can reflect the display image to the outside of the housing 10 and project the display image onto the windshield component.

[0049] For example, an image generation module may include a light source and an image forming module, where a display image is formed after light emitted from the light source passes through the image forming module. Of course, in some other examples, the image generation module may be alternatively other structures capable of forming a display image. For example, the image generation module may be alternatively a microlight-emitting diode display chip.

[0050] Furthermore, as shown in Figure 3, the drive piece 40 may be further fixed within the housing 10, and the drive piece 40 is configured to rotate the curved mirror 20. The drive piece 40 may be a drive motor, such as a linear motor. The drive piece 40 may also include a push rod 41. The push rod 41 may be the output end of the drive piece 40, and the push rod can move linearly under the action of the drive piece 40. Of course, in some other examples, the drive piece 40 may alternatively be other types of motors.

[0051] Of course, in some other examples, the display device 100 may further include other mechanical components, for example, a planar reflective mirror. The planar reflective mirror may be located in the optical path between the image generation module and the curved mirror, or it may be located in the optical path between the curved mirror and the windshield component.

[0052] The curved mirror 20 is assembled and fixed inside the housing 10 via a bracket assembly 30. For example, the curved mirror 20 can be positioned inside the housing 10 by fixing the curved mirror 20 to the bracket assembly 30 and then assembling the bracket assembly 30 into the housing 10.

[0053] Figure 4 shows the structure of a curved mirror and bracket assembly assembled according to one embodiment of the present invention.

[0054] As shown in Figure 4, the back surface 20b of the curved mirror 20 is the surface of the curved mirror 20 opposite to the reflective surface, and the bracket assembly 30 may include a plurality of independent brackets (e.g., a first bracket 31, a second bracket 32, a third bracket 33) that are spaced apart and distributed, and the curved mirror 20 can be fixed and assembled to the bracket assembly 30 by separately attaching and fastening the plurality of brackets to the back surface 20b.

[0055] For example, each bracket can be attached by joining it to the back surface 20b. This solves the problem of not being able to fix the curved mirror 20 using screw rods or buckles. In addition, the joining method helps to reduce the impact on the surface shape of the curved mirror.

[0056] Specifically, for example, each bracket may have a mounting surface (not shown). By distributing adhesive, the mounting surface of the bracket can be attached and fixed to the back surface 20b of the curved mirror 20, and a bonding layer (not shown) is formed between the mounting surface of each bracket and the back surface 20b of the curved mirror 20. Note that the brackets are attached independently to the back surface 20b of the curved mirror 20 at intervals. In the adhesive distribution step, it is necessary to distribute the adhesive only to local areas of the back surface 20b and attach the brackets individually.

[0057] There may be at least two brackets, two of which may be distributed at both ends of the curved mirror 20 in the longitudinal direction. Note that the longitudinal direction of the curved mirror 20 is the curved radian longitudinal direction of the curved mirror 20. As shown in Figure 4, for example, there may be three brackets, two of which are the first bracket 31 and the second bracket 32. The first bracket 31 and the second bracket 32 ​​are distributed at intervals at both ends of the curved mirror 20 in the longitudinal direction. The first bracket 31 and the second bracket 32 ​​are rotatably fitted separately into the housing, so that the bracket assembly 30 and the curved mirror 20 on the bracket assembly 30 can rotate relative to the housing. This allows the curved mirror 20 to be rotatably positioned within the housing and also allows for assembly of the curved mirror 20. Furthermore, the first bracket 31 and the second bracket 32 ​​located at both ends of the curved mirror 20 in the longitudinal direction can also ensure that the curved mirror 20 is balanced and stably fixed within the housing.

[0058] In other words, the curved mirror 20 is rotatably positioned within the housing via two separately arranged brackets, thus meeting the requirements for stable assembly of the curved mirror 20. The curved mirror 20 is positioned within the housing via the bracket assembly 30, and the forces acting during the rotation process act directly on the bracket assembly 30 rather than the curved mirror 20, thus separating the area subjected to force from the optical imaging area. This can reduce or avoid the influence of external forces on the surface shape of the curved mirror 20, helping to ensure the image quality of the curved mirror 20.

[0059] Furthermore, the small length and size of the separate independent brackets reduce the overall size of the bracket assembly structure that fastens the curved mirror 20, thereby reducing the amount of expansion of the bracket assembly. This reduces the difference in deformation between the bracket assembly and the curved mirror 20 caused by the difference in expansion coefficients, and reduces the influence of deformation caused by the mismatch in expansion coefficients between the bracket assembly and the curved mirror 20 on the stress of the joint layer. This ensures the robustness of the mounting, reduces or avoids the risk of damage to the joint layer, and effectively improves the stability and reliability of the placement of the curved mirror 20. In this way, the bracket assembly 30 can realize the assembly of a large curved mirror and meet the assembly requirements of the large curved mirror 20.

[0060] Furthermore, since the bracket itself is lightweight, the use of lightweight brackets enables the assembly of large curved mirrors. In this way, the influence of the bracket's weight on changes in the surface shape of the curved mirror 20 is effectively reduced, the influence on image formation of the curved mirror 20 is reduced, and the image quality of the display device is improved. In addition, because the bracket is small, multiple brackets can be flexibly arranged, and the layout of multiple brackets becomes compact. This leads to a miniaturization of the entire display device, reducing the space occupied by the display device 100. For example, the space occupied by the entire display device can be reduced by 50%.

[0061] Furthermore, the area of ​​the bonding layer between the bracket and the curved mirror 20 is small, and the influence of the internal stress of the adhesive bonding layer on the surface shape of the curved mirror 20 is also small. This also helps to improve image quality.

[0062] Furthermore, if there is a predetermined difference between the expansion coefficient of the bracket and the expansion coefficient of the curved mirror 20 (i.e., the assembly requirements are met), the bracket's length and size are small, allowing the bracket to be made of a material with a low expansion coefficient. This increases the strength of the bracket and ensures the rigidity of the bracket assembly 30. This helps to improve the assembly strength of the curved mirror 20.

[0063] In the embodiments of the present invention, the drive piece can alternatively be fitted into the bracket assembly 30, and the curved mirror 20 can be rotationally driven relative to the housing by moving the bracket assembly 30 with the drive piece. In other words, the driving force of the drive piece acts directly on the bracket assembly 30. This reduces or avoids the risk of changes in surface shape caused by the driving force acting on the curved mirror 20, and further ensures the image quality of the curved mirror 20.

[0064] The drive piece may be fitted to either the first bracket 31 or the second bracket 32, or the drive piece may be fitted to another bracket in the bracket assembly 30. For example, as further shown in Figure 3, the bracket assembly 30 may further include a third bracket 33, and the drive piece can be fitted to the third bracket 33 so that the driving force acts on the third bracket 33. In other words, compared to the case where the forces acting on the housing during rotation and the driving force are concentrated on one bracket, distributing the forces acting on the housing during rotation and the driving force to the third bracket 33, the first bracket 31, and the second bracket 32 ​​reduces the forces acting on the brackets, thereby reducing the internal stress between the brackets and the curved mirror 20 and improving the joint strength between the entire bracket assembly 30 and the curved mirror 20. In the embodiments of this application, we use the example in which the drive piece is fitted to the third bracket 33. The method of fitting the drive piece to the third bracket 33 will be described in detail below.

[0065] Figure 5 is a disassembled view of a curved mirror and bracket assembly according to one embodiment of the present invention.

[0066] To rotate the curved mirror within the housing, for example, as shown in Figure 5, a first rotating part 311 may be positioned at one end of the first bracket 31 opposite to the second bracket 32, and a first rotating groove (not shown) that fits into the first rotating part 311 may be positioned in the housing. For example, the first rotating part 311 may be a rotating column protruding from the end face of the first bracket 31 that faces away from the second bracket 32, and the first rotating groove may be a groove formed in the housing, with the first rotating part 311 extending into the first rotating groove and being able to rotate within the first rotating groove.

[0067] Similarly, a second rotating portion 321 may be located at one end of the second bracket 32, opposite to the first bracket 31, and a second rotating groove (not shown) that fits into the second rotating portion 321 may be located in the housing. For example, the second rotating portion 321 may be a rotating column projecting from the end face of the second bracket 32, facing away from the first bracket 31, and the second rotating groove may also be a groove. The first bracket 31 and the second bracket 32 ​​are rotatably fitted to the housing via the first rotating portion 311 and the second rotating portion 321, respectively. This allows the bracket assembly 30 and the curved mirror 20 to rotatably fit to the housing. This structure is simple and easy to implement.

[0068] The following describes in detail a specific embodiment of how the bracket is attached to and secured to a curved mirror.

[0069] Multiple brackets may be attached and secured to the curved mirror 20 in the same manner, or they may be attached and secured in different manners. In this embodiment, an example in which multiple brackets are attached to the curved mirror 20 in the same manner will be described.

[0070] Figure 6 shows the structure of the first bracket according to one embodiment of the present invention. Figure 7 shows the back structure of the curved mirror according to one embodiment of the present invention.

[0071] The bracket is attached to and positioned on the back of the curved mirror via a bonding layer. To facilitate installation, the bracket may be provided with a first positioning structure, and the curved mirror may be provided with a second positioning structure. The first and second positioning structures fit together to precisely position the bracket on the curved mirror. This facilitates alignment of the first bracket and the curved mirror during the assembly process, contributing to improved assembly accuracy.

[0072] For example, consider the first bracket. As shown in Figure 6, the first bracket 31 may include a mounting surface 311a. The mounting surface 311a faces the back surface 20b of the curved mirror 20 (as shown in Figure 5), and the mounting surface 311a is attached and fixed to the back surface 20b, and a bonding layer may be filled between the mounting surface 311a and the back surface 20b.

[0073] A first positioning structure 312a may be provided on the mounting surface 311a. The first positioning structure 312a may be a positioning hole. Referring to Figure 7, a second positioning structure 211a may be provided on the back surface 20b of the curved mirror 20. The second positioning structure 211a may be a positioning pole, and the second positioning structure 211a may extend into the first positioning structure 312a and position the mounting position of the first bracket 31 via the first positioning structure 312a and the second positioning structure 211a.

[0074] The first bracket 31 may have multiple first positioning structures 312a, and these multiple first positioning structures 312a may be distributed at both ends of the first bracket 31 in the width direction (direction perpendicular to the length direction). For example, there may be two first positioning structures 312a (as shown in Figure 6). By using multiple first positioning structures 312a, positioning of the first bracket 31 can be achieved in both the length direction and the width direction, thereby further improving the positioning accuracy during assembly of the first bracket 31 and the curved mirror 20, and simplifying the assembly work.

[0075] Similarly, the back surface 20b of the curved mirror 20 may have multiple second positioning structures 211a (as shown in Figure 7). The multiple second positioning structures 211a correspond one-to-one with the multiple first positioning structures 312a.

[0076] For example, there are two first positioning structures, each of which is a positioning hole. The widthwise dimension of one positioning structure may be larger than the widthwise dimension of the other positioning structure. The interference fit strength between the first bracket 31 and the curved mirror 20 is reduced or eliminated. By providing a dimensional difference, tolerances in the assembly or molding process of the first and second positioning structures can be compensated, reducing or avoiding the phenomenon where alignment and assembly become impossible due to interference fitting, and also helping to reduce the impact of interference fitting on the surface shape of the curved mirror 20.

[0077] For example, consider two first positioning structures. One first positioning structure is a circular hole, and the other first positioning structure is a runway circular hole.

[0078] Figure 8 shows the partial structure of part A in Figure 7.

[0079] As shown in Figure 8, the second positioning structure 211a may be a columnar positioning structure formed protruding from the back surface 20b of the curved mirror 20. A reinforcing rib 2111 may be provided at one end of the second positioning structure 211a that is adjacent to the back surface 20b. By connecting the reinforcing rib 2111 separately to the second positioning structure 211a and the back surface 20b, the strength of the second positioning structure 211a can be improved, and the joint strength between the bracket and the curved mirror 20 can be improved.

[0080] On one side of the bracket opposite to the curved mirror, and on the other side of the curved mirror opposite to the bracket, a protruding limiting column may be positioned on one side, and a limiting portion may be positioned on the other side. For example, the bracket may be provided with a limiting portion, and the side of this limiting portion opposite to the curved mirror may form a limiting surface. A protruding limiting column may be provided on the back of the curved mirror.

[0081] When the bracket is attached to the curved mirror, the end face of the limiting column, which is away from the back surface, contacts the limiting surface of the limiting part, and the position of the bracket in the thickness direction (perpendicular to the length and width directions) is restricted via the limiting column. In other words, the distance between the bracket and the curved mirror is restricted. Because the height of the limiting column can be precisely controlled, the distance between the bracket and the curved mirror can be precisely controlled. This improves the positioning accuracy of the curved mirror within the housing, improves the optical imaging accuracy of the curved mirror, and helps to further improve the image quality of the display device.

[0082] For example, consider the first bracket. As shown in Figure 6, the first bracket 31 is provided with a limiting portion 313a, and the surface of the limiting portion 313a that faces the curved mirror may be the limiting surface. As shown in Figure 7, a protruding limiting column 212a is provided on the back surface 20b of the curved mirror 20. When the first bracket 31 is attached to the curved mirror 20, the limiting column 212a contacts the limiting surface of the limiting portion 313a, thereby maintaining an accurate distance between the first bracket 31 and the curved mirror 20.

[0083] The limiting portion 313a (shown in Figure 6) may be provided with an adhesive overflow hole 3131. When the bracket is attached to the curved mirror 20 and assembled, excess adhesive can be allowed to overflow from the adhesive overflow hole 3131, thereby reducing the influence of the bonding layer formed by the adhesive on the distance between the curved mirror 20 and the bracket, and further ensuring the positional accuracy of the curved mirror 20.

[0084] Of course, in some other examples, the protruding limiting column may alternatively be located on the bracket side, facing the curved mirror, and the limiting surface may be formed on the back of the curved mirror.

[0085] The limiting sections and limiting columns may be one or more. One limiting surface may be formed on one limiting section, and the limiting surface may correspond one-to-one with a limiting column. For example, multiple limiting sections may be formed at intervals around the bracket, and a limiting section may also be formed at the center of the bracket. This helps to ensure the height balance of the bracket and further improve the positioning accuracy of the curved mirror.

[0086] In the embodiments of this application, to enhance the robustness of the mounting between the bracket and the curved mirror, alignment grooves may be provided on the mounting surface of the bracket, and protruding auxiliary ribs may be formed at the bottom of the alignment grooves. Protruding annular auxiliary pieces may be formed on the back surface of the curved mirror. When mounting and assembling the bracket and the curved mirror, the auxiliary pieces may be inserted into the alignment grooves, the auxiliary ribs may be inserted into the rings of the auxiliary ribs, and a bonding layer may be formed by filling the space between the auxiliary ribs and the auxiliary pieces with adhesive. By adding auxiliary ribs and auxiliary pieces, the bonding area between the bracket and the curved mirror can be increased. This improves the bonding strength between the bracket and the curved mirror, and helps to improve the stability and reliability of the placement of the curved mirror.

[0087] For example, consider the first bracket. As shown in Figure 6, a circular positioning groove 314a is formed on the mounting surface 311a of the first bracket 31, and a protruding auxiliary rib 315a is provided at the bottom of the positioning groove 314a. As shown in Figure 7, a protruding annular auxiliary piece 214a is formed on the back surface 20b of the curved mirror 20. During actual assembly, adhesive may be distributed into the ring of the auxiliary piece 214a. When the first bracket 31 is attached to the curved mirror 20, the auxiliary piece 214a is inserted into the positioning groove 314a, and the auxiliary rib 315a in the positioning groove 314a is inserted into the ring of the auxiliary piece 214a. Once the adhesive hardens, a bonding layer is formed between the auxiliary piece 214a and the auxiliary rib 315a. This improves the bonding strength between the first bracket 31 and the curved mirror 20.

[0088] As shown in Figure 8, compared to an annular auxiliary piece 214a which is a single ring, the annular auxiliary piece 214a may include a plurality of second sub-ribs 2141, which may be spaced apart in a circumferential manner. This facilitates the demolding of the auxiliary piece 214a when forming the curved mirror 20, simplifies demolding manufacturing, reduces or avoids the impact of demolding on the surface shape of the curved mirror 20, and helps ensure the imaging accuracy of the curved mirror 20.

[0089] An annular identification portion may be further positioned on the back surface 20b of the curved mirror 20. For example, as shown in Figure 8, an annular identification portion 216 is provided on the back surface 20b. The annular identification portion 216 is enclosed to form an adhesive coating area. The adhesive coating area faces the first bracket 31. During actual assembly, the adhesive is distributed into the adhesive coating area, and the mounting surface of the first bracket 31 is attached and secured to this adhesive coating area. The identification portion serves as a marker for accurately distributing the adhesive to the required local area, facilitating the assembly process.

[0090] Figure 9 is an enlarged view of the partial structure of part B in Figure 6.

[0091] As shown in Figure 9, the shape of the auxiliary rib 315a may be cross-shaped, that is, the auxiliary rib 315a may be a protruding cross-shaped columnar structure formed at the bottom of the alignment groove 314a. The cross-shaped structure can increase the area of ​​the auxiliary rib 315a, thereby increasing the contact area between the auxiliary rib 315a and the bonding layer. This helps to improve the bonding strength between the bracket and the curved mirror 20.

[0092] Of course, in other examples, the shape of the auxiliary rib 315a may alternatively be other regular or irregular patterns, such as a T-shape or an X-shape.

[0093] There may be one or more alignment grooves and auxiliary pieces. Each alignment groove may have one auxiliary rib, and the auxiliary pieces may correspond one-to-one with the auxiliary ribs. For example, as shown in Figure 9, two alignment grooves 314a may be formed in the first bracket 31, one auxiliary rib 315a may be formed in each alignment groove 314a, and the two alignment grooves 314a may be spaced apart and distributed at the longitudinal center of the first bracket 31.

[0094] To further improve the bonding strength between the bracket and the curved mirror, the bracket may further include side wall surfaces, and these side wall surfaces may be arranged around the mounting surface. For example, consider the first bracket 31. The first bracket 31 includes a mounting surface 311a and a side wall surface 316a (shown in Figure 6). The side wall surface 316a may be the wall surface of the side wall in the circumferential direction of the first bracket 31.

[0095] The side wall surface 316a may be arranged along the periphery of the mounting surface 311a, or the side wall surface 316 a The mounting surface 311a may be positioned only on a portion of its periphery. For example, the first bracket 31 may further include a mounting surface 317a. The mounting surface 317a and the side wall surface 316a jointly surround the mounting surface 311a.

[0096] Figure 10 shows a front structure in which a bracket and a curved mirror are assembled according to one embodiment of the present invention.

[0097] Referring to Figure 10, the first bracket 31 may be located at one end of the curved mirror 20, adjacent to the first side surface 20c of the curved mirror 20, the mounting surface 317a may be located at the edge of the first bracket 31, adjacent to the first side surface 20c, the mounting surface 317a may extend in the thickness direction, the mounting surface 317a may be attached to the side end surface of the first side surface 20c, and the first rotating part 311 may be positioned on the mounting surface 317a.

[0098] A protruding annular connecting piece may be provided on the back of the curved mirror. When the bracket is attached to the back, the annular connecting piece may be located on the outer circumference of the side wall surface of the bracket. In other words, the connecting piece surrounds the outer circumference of the side wall surface, and a gap exists between the connecting piece and the side wall surface. By distributing adhesive into the gap, a bonding layer can be formed, which can further increase the bonding area between the bracket and the curved mirror and improve the bonding strength between the bracket and the curved mirror.

[0099] For example, as shown in Figure 10, the first bracket 31 is attached to the back surface 20b of the curved mirror 20. There is a gap between the side wall surface 316a of the first bracket 31 and the annular connecting piece 213a on the back surface 20b. During actual assembly, adhesive can be distributed into this gap. After the adhesive has hardened, a bonding layer is filled between the side wall surface 316a of the first bracket 31 and the connecting piece 213a.

[0100] The annular connecting piece may include a plurality of first sub-ribs. For example, consider connecting piece 213a. Connecting piece 213a may include a plurality of first sub-ribs 2131 (shown in Figure 8). The plurality of first sub-ribs 2131 may be arranged in an annular pattern with spacing between them. This facilitates the demolding of the connecting piece formed during imaging of the curved mirror 20, and the demolding process song This can reduce or avoid the impact on the surface shape of the mirror.

[0101] Further through-slots may be provided on the mounting surface of the bracket, and protruding bosses may be provided on the back of the curved mirror. When assembling the bracket to attach it to the curved mirror, the bosses can be inserted into the through-slots, and the bosses and through-slots can serve as positioning guides. This makes it even easier to precisely position the bracket relative to the curved mirror. A bonding layer may also be filled between the outer wall of the boss and the inner wall of the through-slot, thereby further increasing the bonding area between the bracket and the curved mirror and improving the bonding strength between the bracket and the curved mirror.

[0102] For example, consider the first bracket. The mounting surface of the first bracket 31 is provided with a through slot 318a (shown in Figure 6), and the back surface 20b of the curved mirror 20 is provided with a boss 215a (shown in Figures 7 and 8). As shown in Figure 10, the first bracket 31 is attached to the back surface 20b of the curved mirror 20, and the boss 215a is inserted into the through slot 318a. During actual assembly, adhesive may be distributed into the gap between the through slot 318a and the boss 215a. After the adhesive has hardened, a bonding layer is formed between the boss 215a and the through slot 318a.

[0103] Of course, in some other examples, the through-slot may alternatively be located on a different face of the bracket. For example, the through-slot may alternatively be located on the mounting face of the bracket, with the boss formed on the side of the curved mirror.

[0104] To further improve the positioning accuracy of the bracket and the curved mirror, a third positioning structure and a fourth positioning structure may be arranged on the bracket and the curved mirror, respectively. For example, a groove may be formed on the circumferential side wall (i.e., the side wall surface) of the bracket, and a protruding positioning column may be formed on the back surface of the curved mirror. The third positioning structure and the fourth positioning structure may be one or more, with the third positioning structure corresponding one-to-one with the fourth positioning structure.

[0105] For example, consider the first bracket 31. The circumferential side wall (side wall surface) of the first bracket 31 is recessed inward to form a plurality of grooves 319a (shown in Figure 6), and the back surface 20b of the curved mirror 20 protrudes to form a plurality of positioning columns 216a (shown in Figure 7). As shown in Figure 10, when the first bracket 31 is assembled to the curved mirror 20, the positioning columns 216a can extend into the grooves 319a. This further restricts the position of the first bracket 31 on the curved mirror 20 in both the length and width directions, making alignment during assembly easier.

[0106] The following describes the mounting and assembly process of the bracket and the curved mirror, using the first bracket as an example.

[0107] During actual assembly, for example, first, the adhesive is applied to the back of the curved mirror. The adhesive application area is the adhesive application region surrounded by the identification part, and the adhesive is distributed into the alignment groove. Next, the mounting surface of the first bracket is attached to the adhesive application region on the back. The first positioning structure, second positioning structure, third positioning structure, and fourth positioning structure, etc., work together to ensure that the position of the first bracket is accurate. There is a gap between the side wall surface of the first bracket and the annular connecting piece. The boss of the curved mirror is inserted into the through slot of the first bracket, and there is also a gap between the boss and the through slot. Next, the adhesive is distributed into the gap between the side wall surface and the connecting piece, and the gap between the through slot and the boss. After the adhesive hardens, the curved mirror and the first bracket can be firmly fixed together.

[0108] Figure 11 shows the structure of a second bracket according to one embodiment of the present application.

[0109] Similarly, as shown in Figure 11, the second bracket 32 ​​may include a mounting surface 321a, a side wall surface 326a, and a mounting surface 327a. The side wall surface 326a and the mounting surface 327a together surround the mounting surface 321a. The mounting surface 321a is attached to the back of the curved mirror (shown in Figure 5). A bonding layer may be provided between the mounting surface 321a and the back.

[0110] The second bracket 32 ​​may be located at the end of the curved mirror 20, adjacent to the second side surface 20d of the curved mirror 20. The mounting surface 327a may be located at the edge of the second bracket 32, adjacent to the second side surface 20d (as shown in Figure 10). The mounting surface 327a may be attached to the side end face of the second side surface 20d, and the second rotating part 321 may be positioned on the mounting surface 327a.

[0111] Furthermore, as shown in Figure 11, a first positioning structure 322a may be provided on the mounting surface 321a. The first positioning structure 322a fits into a second positioning structure 211b provided on the back surface 20b of the curved mirror 20 (as shown in Figure 7). The first positioning structure 322a and the second positioning structure 211b fit together to position the mounting position of the bracket on the curved mirror 20. This makes it easier to align and assemble the second bracket 32 ​​during the assembly process.

[0112] Furthermore, as shown in Figure 11, the second bracket 32 ​​may be further provided with a limiting portion 323a. The limiting surface may be formed on the surface of the limiting portion 323a that faces the curved mirror. When the second bracket 32 ​​is attached to and fixed to the curved mirror 20, the limiting surface of the limiting portion 323a abuts against the limiting column 212b provided on the back surface 20b (shown in Figure 7). The abutment and engagement between the limiting column 212b and the limiting surface can also limit the distance between the second bracket 32 ​​and the curved mirror 20. This improves the mounting accuracy of the curved mirror 20.

[0113] Furthermore, as shown in Figure 11, the alignment groove 324a may be positioned on the mounting surface 321a, and the bottom of the alignment groove 324a may protrude to form an auxiliary rib 325a. An annular auxiliary piece 214b (shown in Figure 7) provided on the back surface 20b of the curved mirror 20 may be inserted into the alignment groove 324a, the auxiliary rib 325a may be inserted into the auxiliary piece 214b, and a bonding layer may be filled between the auxiliary rib 325a and the auxiliary piece 214b, thereby improving the bonding strength between the second bracket 32 ​​and the curved mirror 20.

[0114] The second bracket 32 ​​includes a side wall surface 326a. When the second bracket 32 ​​is attached to the back surface 20b of the curved mirror 20, the bonding layer is also filled between the side wall surface 326a of the second bracket 32 ​​and the annular connecting piece 213b (shown in Figure 7) provided on the back surface 20b.

[0115] Furthermore, as shown in Figure 11, a through slot 328a is also provided on the mounting surface 321a of the second bracket 32. When the second bracket 32 ​​is attached to the curved mirror 20, the boss 215b (shown in Figure 7) on the back surface 20b of the curved mirror 20 can be inserted into the through slot 328a, and a bonding layer can be filled between the inner wall of the through slot 328a and the outer wall of the boss 215b.

[0116] For specific details regarding the configuration of the first positioning structure 322a, limiting section 323a, auxiliary rib 325a, side wall surface 326a, alignment groove 324a, and through slot 328a, please refer to the configuration of the first bracket 31. Further details will not be explained here.

[0117] Furthermore, for the process of attaching the second bracket 32 ​​to the curved mirror 20 and assembling it, please refer to the configuration of the first bracket 31. Details will not be explained again here.

[0118] Figure 12 shows the structure of a third bracket according to one embodiment of the present application.

[0119] As shown in Figure 12, the third bracket 33 may include a mounting surface 331a, a side wall surface 336a, and a mounting surface 337a. The side wall surface 336a and the mounting surface 337a jointly surround the periphery of the mounting surface 331a. The mounting surface 331a is attached to the back surface 20b of the curved mirror 20 (as shown in Figure 5). A bonding layer may be provided between the mounting surface 331a and the back surface 20b.

[0120] The third bracket 33 is located between the first bracket 31 and the second bracket 32. For example, the third bracket 33 may be positioned adjacent to the third side surface 20e of the curved mirror 20 (as shown in Figure 10). The mounting surface 337a may be located on the edge of the third bracket 33, adjacent to the third side surface 20e. e It may be attached to the side end face. The mounting surface 337a may be connected to and fitted to the drive piece 40. In this way, the drive piece 40 can rotate the curved mirror 20 via the third bracket 33.

[0121] For example, as shown in Figure 12, an alignment base 339 may be provided on the mounting surface, and the alignment base 339 may be connected to the push rod of the drive piece. For example, an assembly hole 3391 may be provided in the alignment base 339, and a mounting hole (not shown) may be provided in the push rod. The mounting hole of the push rod and the assembly hole 3391 can be fixedly connected via fasteners such as screws or square nails, thereby achieving a fixed connection between the push rod of the drive piece and the third bracket 33.

[0122] The drive piece can drive the push rod to move linearly. For example, the push rod can move in the thickness direction, pushing or pulling the third bracket 33, and rotating the bracket assembly and the curved mirror relative to the housing, thereby rotating the curved mirror within the housing and adjusting the projection position and projection angle of the displayed image.

[0123] A fifth positioning structure 3392 may be further positioned on the alignment base 339, and a sixth positioning structure (not shown) may be positioned on the push rod. The fifth positioning structure 3392 and the sixth positioning structure fit together to position the push rod and the third bracket 33. This facilitates the alignment and assembly of the push rod and the third bracket during the assembly process.

[0124] For example, the fifth positioning structure 3392 may be a positioning hole, and the sixth positioning structure may be a protruding positioning column. The fifth positioning structure 3392 and the sixth positioning structure may be one or more, and the fifth positioning structure 3392 may correspond one-to-one with the sixth positioning structure.

[0125] Similarly, as shown in Figure 12, the mounting surface 331a of the third bracket 33 may also be provided with the first positioning structure 332a. The first positioning structure 332a fits into the second positioning structure 211c (shown in Figure 7) provided on the back surface 20b of the curved mirror 20 to position the third bracket 33.

[0126] The third bracket 33 may have a limiting portion 333a. The limiting surface may be formed on the surface of the limiting portion 333a that faces the back surface of the curved mirror. The limiting portion 333a abuts against a limiting column 212c (shown in Figure 7) provided on the back surface 20b of the curved mirror 20, thereby accurately limiting the distance between the third bracket 33 and the curved mirror 20.

[0127] Alignment grooves 334a may also be positioned on the mounting surface 331a, and the bottom of the alignment grooves 334a may protrude to form auxiliary ribs 335a. An annular auxiliary piece 214c (shown in Figure 7) provided on the back surface 20b of the curved mirror 20 may be inserted into the alignment grooves 334a, the auxiliary ribs 335a may be inserted into the auxiliary piece 214c, and a bonding layer may be filled between the auxiliary piece 214c and the auxiliary ribs 335a.

[0128] Furthermore, as shown in Figure 12, the third bracket 33 includes a side wall surface 336a. The bonding layer is also filled between the side wall surface 336a and the annular connecting piece 213c (shown in Figure 7) on the back surface 20b of the curved mirror 20.

[0129] Similarly, through-slots may also be located on the mounting surface 331a, which engage with bosses on the back of the curved mirror. A bonding layer is filled between the bosses and the through-slots to improve the bonding strength between the third bracket and the curved mirror.

[0130] Alternatively, in some other examples, the through-slot may be located on a different face of the third bracket 33. For example, as shown in Figure 12, the through-slot 338a may be located on the mounting face 337a. A protruding boss is provided on the third side of the curved mirror.

[0131] Figure 13 shows an assembled third bracket and curved mirror according to one embodiment of the present invention.

[0132] Referring to Figure 13, when attaching the third bracket 33 to the curved mirror 20, the mounting surface 337a can be attached to the side end face of the third side surface 20e. The boss 215c is inserted into the through slot 338a. By distributing adhesive between the outer wall of the boss 215c and the inner wall of the through slot 338a, a bonding layer can be formed, thereby increasing the bonding strength between the third bracket 33 and the curved mirror 20.

[0133] For specific embodiments of the first positioning structure 332a, limiting portion 333a, auxiliary rib 335a, side wall surface 336a, alignment groove 334a, and through slot 338a, please refer to the embodiment of the first bracket 31. Further details will not be explained here.

[0134] For the process of fitting the third bracket 33 to the curved mirror 20 and assembling it, please refer to the first bracket 31. Further details will not be explained here.

[0135] In the description of embodiments of this application, unless expressly specified and limited, the terms “attach,” “connect,” and “connect” should be understood in a broad sense, and it should be noted that these may include, for example, a fixed connection, an indirect connection via an intermediate medium, an internal connection between two elements, or an interactive relationship between two elements. Those skilled in the art will be able to understand the specific meaning of the aforementioned terms in embodiments of this application based on specific examples. Terms such as “first,” “second,” “third,” and “fourth” (if any) are intended to distinguish between similar objects and do not necessarily indicate a specific order or sequence.

[0136] Finally, it should be noted that the embodiments described above are used solely to illustrate the technical solutions in the embodiments of the present application and do not limit the technical solutions. Although the embodiments of the present application are described in detail with reference to the embodiments described above, those skilled in the art should understand that the technical solutions described in the embodiments described above may be further modified or some or all of their technical features may be replaced by equivalents. However, these modifications or replacements do not depart from the scope of the technical solutions in the embodiments of the present application.

Claims

1. A display device comprising a housing (10), a curved mirror (20) and a bracket assembly (30) located within the housing (10), wherein the curved mirror (20) has a reflective surface (20a), and the curved mirror (20) is positioned within the housing (10) via the bracket assembly (30), The bracket assembly (30) includes a plurality of brackets spaced apart, each bracket being individually attached and fixed to the surface of the curved mirror (20) opposite to the reflective surface (20a). The plurality of brackets include at least a first bracket (31) and a second bracket (32), the first bracket (31) and the second bracket (32) are each distributed at both ends in the longitudinal direction of the curved mirror (20), and the first bracket (31) and the second bracket (32) are individually rotatably fitted into the housing (10). The first bracket (31) and the second bracket (32) are substantially rectangular in shape and are positioned spaced apart at both ends of the curved mirror (20) in the longitudinal direction such that the lengths of the first bracket (31) and the second bracket (32) are within the width dimension perpendicular to the longitudinal direction of the curved mirror (20). The first bracket (31) and the second bracket (32) are provided with a first positioning structure (312a) at both ends in the longitudinal direction of the first bracket (31) and the second bracket (32), and the curved mirror (20) is provided with a second positioning structure (211a) that fits into the first positioning structure (312a) in the width direction perpendicular to the longitudinal direction of the curved mirror (20). Display equipment.

2. The display device according to claim 1, further comprising a drive piece (40) fixed within the housing (10), wherein the drive piece (40) is fitted into the bracket assembly (30), and the drive piece (40) is configured to rotate the curved mirror (20) via the bracket assembly (30).

3. The display device according to claim 2, wherein the plurality of brackets further include a third bracket (33), the third bracket (33) being located between the first bracket (31) and the second bracket (32), and the drive piece (40) being fitted into the third bracket (33).

4. The display device according to claim 3, wherein the third bracket (33) is provided with an alignment base (339), the alignment base (339) is connected to a push rod (41) of the drive piece (40), and the drive piece (40) is configured to push and pull the third bracket (33) to rotate the curved mirror (20).

5. The first rotating part (311) is provided at the end of the first bracket (31) that faces away from the second bracket (32), and the housing (10) is provided with a first rotating groove that fits into the first rotating part (311), and the first bracket (31) achieves a rotatable connection by fitting the first rotating part (311) and the first rotating groove. The display device according to claim 1, wherein a second rotating part (321) is provided at the end of the second bracket (32) that faces away from the first bracket (31), the housing (10) is provided with a second rotating groove that fits into the second rotating part (321), and the second bracket (32) achieves a rotatable connection by fitting between the second rotating part (321) and the second rotating groove.

6. The display device according to claim 1, wherein the bracket and the curved mirror (20) are positioned by fitting between the first positioning structure (312a) and the second positioning structure (211a).

7. The display device according to claim 1, wherein the curved mirror (20) is provided with a protruding limiting column (212a), the bracket is provided with a limiting portion (313a), and the end face of the limiting column (212a) abuts against and fits with the limiting portion (313a).

8. The display device according to claim 1, further comprising a bonding layer, wherein the bracket is attached to and fixed to the curved mirror (20) via the bonding layer.

9. The bracket includes a mounting surface (311a) and a side wall surface (316a) arranged around the mounting surface (311a), and the bonding layer is filled between the mounting surface (311a) and the curved mirror (20). A protruding connecting piece (213a) is provided on the surface of the curved mirror (20) opposite to the reflective surface (20a), the connecting piece (213a) is located on the outer circumference of the side wall surface (316a), and the bonding layer is filled between the connecting piece (213a) and the side wall surface (316a), as described in claim 8.

10. The display device according to claim 9, wherein the connecting piece (213a) includes a plurality of first sub-ribs (2131), the plurality of first sub-ribs (2131) are spaced apart.

11. An alignment groove (314a) is provided on the mounting surface (311a), and a protruding auxiliary rib (315a) is provided at the bottom of the alignment groove (314a). The display device according to claim 9, wherein a protruding annular auxiliary piece (214a) is provided on the surface of the curved mirror (20) opposite to the reflective surface (20a), the auxiliary piece (214a) is inserted into the alignment groove (314a), the auxiliary rib (315a) is inserted into the auxiliary piece (214a), and the bonding layer is filled between the auxiliary rib (315a) and the auxiliary piece (214a).

12. The display device according to claim 11, wherein the shape of the auxiliary rib (315a) includes at least a cross shape.

13. The display device according to claim 12, wherein the auxiliary piece (214a) includes a plurality of second sub-ribs (2141), the plurality of second sub-ribs (2141) are spaced apart.

14. The display device according to claim 9, wherein a through slot (318a) is provided in the mounting surface (311a), a protruding boss (215a) is provided on the surface of the curved mirror (20) opposite to the reflective surface (20a), and the boss (215a) is inserted into the through slot (318a).

15. The display device according to claim 1, further comprising an image generation module configured to form a display image, and the curved mirror configured to reflect the display image of the image generation module.

16. A vehicle comprising a display device (100) according to any one of claims 1 to 15, which is attached to the vehicle.

Images