Display devices 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] The present application relates to the field of display technology, and in particular to display devices and vehicles. [Background technology]

[0002] With the development of display technology, projection displays have been widely applied. For example, head-up display (HUD) technology has been increasingly widely applied in recent years in fields such as automobiles, aerospace, and navigation. For example, in the automobile field, head-up display devices project important driving information such as speed and navigation information onto the windshield in front of the driver, and then the important driving information is reflected by the windshield to form a virtual image directly within the driver's line of sight, allowing the driver to view the information without looking down. This avoids the risk of distracted driving caused by distracted driving and improves safety.

[0003] A head-up display device typically includes an image generation module and an optical element. The optical element 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 (e.g., information such as speed and navigation). The reflective surface of the curved mirror reflects the image information onto the windshield for viewing by the driver. The curved mirror is rotatably disposed within the housing of the head-up display device via an enclosure frame, allowing the projection angle and position of the curved mirror to be adjusted to meet various display requirements. The enclosure frame may include a bottom plate and a frame disposed on the bottom 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 bottom plate by bonding, and the frame is disposed around the curved mirror. However, to achieve a wide field of view display in the head-up display device, the size of the curved mirror is becoming increasingly larger, for example, the length exceeds 350 mm, and the length and area of ​​the enclosure frame also increase accordingly. However, the difference between the coefficient of thermal expansion (CTE) of the housing frame and that of the curved mirror is large, which results in a large difference in thermal expansion deformation between the housing frame and the curved mirror, resulting in strong internal stress, which affects the bonding strength between the curved mirror and the housing frame and reduces the placement stability of the curved mirror. Summary of the Invention

[0004] The present application provides a display device and a vehicle that effectively reduces the deformation difference between the bracket assembly and the curved mirror caused by the difference in expansion coefficients, and meets the stable and reliable assembly requirements of large curved mirrors.

[0005] A first aspect of the present application provides a display device, the display device including a housing, a curved mirror positioned within the housing, and a bracket assembly, the curved mirror having a reflective surface, and the curved mirror being positioned within the housing via the bracket assembly.

[0006] The bracket assembly includes a plurality of brackets arranged at intervals, which are individually attached and fixed to the surface of the curved mirror opposite the reflective surface. The brackets include at least a first bracket and a second bracket. The first bracket and the second bracket are arranged at both ends of the curved mirror's length, respectively. The first bracket and the second bracket are individually rotatably fitted to the housing, and are used to ensure that the curved mirror is balanced and stably fixed within the housing. In other words, the curved mirror is rotatably arranged via the two separately arranged brackets within the housing, thereby meeting the stable assembly requirements of the curved mirror. The curved mirror is arranged within the housing via the bracket assembly, and the force acting during the rotation process acts directly on the bracket assembly, thereby reducing or avoiding the influence of external forces on the curved mirror's topography. This helps ensure the image quality of the curved mirror.

[0007] Furthermore, the length and size of the separate and independent brackets are small, reducing the structural size of the entire bracket assembly. This reduces the amount of expansion of the bracket assembly, reducing the difference in deformation between the bracket assembly and the curved mirror due to differences in expansion coefficients. This reduces the impact of deformation caused by mismatches in the expansion coefficients of the bracket assembly and the curved mirror on stress in the bonding layer, reducing or eliminating the risk of damage to the bonding layer between the bracket and the curved mirror, effectively improving the stability and reliability of the curved mirror arrangement. In this way, the bracket assembly can be used to assemble large curved mirrors and meet the assembly requirements for large curved mirrors. Because the length and size of the brackets are small, materials with low expansion coefficients can be used as molding materials for the brackets, thereby increasing the strength of the brackets and ensuring appropriate rigidity for the bracket assembly. This helps improve the assembly strength of the curved mirrors.

[0008] The bracket is also lightweight, making it possible to assemble a large curved mirror. In this way, the impact of the bracket's weight on changes in the surface shape of the curved mirror is effectively reduced, reducing the impact on the image formation of the curved mirror. Furthermore, multiple small brackets can be flexibly arranged, resulting in a compact layout. This also helps to miniaturize the entire display device. The area of ​​the bonding layer between the bracket and the curved mirror is small, and the internal stress of the adhesive bonding layer has little impact on the surface shape of the curved mirror. This also helps to improve image quality.

[0009] In a possible embodiment, the device further includes a drive piece fixed to the housing. The drive piece is configured to fit into the bracket assembly and to rotate the curved mirror via the bracket assembly, whereby the drive force acts directly on the bracket assembly. This reduces or avoids the risk of changes in the surface shape caused by the drive force acting on the curved mirror, and further ensures the image quality of the curved mirror.

[0010] In a possible embodiment, the plurality of brackets further includes a third bracket, the third bracket being positioned between the first bracket and the second bracket, and the drive piece being fitted to the third bracket. The driving force and acting force of the housing during the rotation process are distributed to the third bracket, the first bracket, and the second bracket, thereby reducing the concentration of acting force on the brackets and reducing internal stress between the brackets and the curved mirror. This helps to improve the bonding strength between the entire bracket assembly and the curved mirror.

[0011] In a possible embodiment, the 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 or pull the third bracket to rotate the curved mirror. In this way, the curved mirror is rotated by pushing or pulling the push rod of the drive piece. This structure is simple and easy to implement.

[0012] In a possible embodiment, the first rotating part is arranged at an end of the first bracket facing away from the second bracket, the housing is provided with a first rotating groove that mates with the first rotating part, and the first bracket achieves a rotatable connection via the engagement between the first rotating part and the first rotating groove.

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

[0014] In one possible embodiment, the bracket is provided with a first positioning structure, and the curved mirror is provided with a second positioning structure that fits with the first positioning structure, and the bracket and the curved mirror are positioned by the fit between the first and second positioning structures. The first and second positioning structures are used to precisely position the mounting position of the bracket relative to the curved mirror. This makes it easier to align the bracket and the curved mirror during the assembly process and also helps improve assembly accuracy.

[0015] In a possible embodiment, 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 and fitting to the limiting portion. The distance between the bracket and the curved mirror is limited by the limiting pole, and the height of the limiting pole can be accurately controlled, so that the distance between the bracket and the curved mirror can be accurately controlled. This improves the positioning accuracy of the curved mirror at a position 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 a possible embodiment, the device further includes a bonding layer, and the bracket is attached and fixed to the curved mirror via the bonding layer, which facilitates assembly and helps reduce the impact on the surface shape of the curved mirror compared to connection methods such as screws or clamps.

[0017] In a possible embodiment, the bracket includes a mounting surface and a sidewall surface disposed around the mounting surface, and the bonding layer is filled between the mounting surface and the curved mirror.

[0018] A protruding connecting piece is provided on the surface of the curved mirror opposite the reflective surface, and the connecting piece is located on the outer periphery of the side wall surface, with a bonding layer filling the gap between the connecting piece and the side wall surface. Another connecting piece is disposed on the curved mirror and bonded to the side wall surface of the bracket. This further increases the bonding area between the bracket and the curved mirror, improving the bonding strength between the bracket and the curved mirror.

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

[0020] In a possible embodiment, an alignment groove is provided in the mounting surface, and a protruding auxiliary rib is provided at the bottom of the alignment groove.

[0021] A protruding annular auxiliary piece is provided on the surface of the curved mirror opposite the reflective surface, the auxiliary piece is inserted into the alignment groove, the auxiliary rib is inserted into the auxiliary piece, and a bonding layer is filled between the auxiliary rib and the auxiliary piece. By adding the auxiliary rib and the auxiliary piece, the bonding area between the bracket and the curved mirror can be increased, which helps to improve the bonding strength between the bracket and the curved mirror and the stability and reliability of the curved mirror placement.

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

[0023] In a possible embodiment, the auxiliary piece includes a plurality of second sub-ribs, and the plurality of second sub-ribs are spaced apart, which makes it easier to demold the auxiliary piece during molding of the curved mirror, facilitating the demolding process and reducing or eliminating the influence of demolding on the surface shape of the curved mirror.

[0024] In one possible embodiment, 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 the boss is inserted into the through slot. The fit between the boss and the through slot can serve as a positioning function. Furthermore, a bonding layer may be filled between the boss and the through slot. By providing the additional boss and through slot, the bonding area between the bracket and the curved mirror can be further increased, thereby improving the bonding strength between the bracket and the curved mirror.

[0025] In a possible implementation, the apparatus further includes an image generation module, the image generation module configured to form a display image, and the curved mirror configured to reflect the display image of the image generation module.

[0026] A second aspect of the present application provides a vehicle including any one of the above display devices mounted on the vehicle. [Brief explanation of the drawings]

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

[0028] [Reference symbol explanation] 100: Display equipment, 10: housing, 11: upper housing, 12: lower housing, 20: curved mirror, 20a: reflective surface, 20b: back surface, 211a, 211b, 211c: second positioning structure, 211l: reinforcing rib, 212a, 212b, 212c: limiting columns; 213a, 213b, 213c: connecting pieces; 2131: first sub-rib; 214a, 214b, 214c: auxiliary pieces, 2141: second sub-rib, 215a, 215b, 215c: bosses, 30: bracket assembly, 31: first bracket, 311: first rotating part, 32: second bracket, 321: second rotating part, 33: third bracket, 311a, 321a, 331a: mounting surfaces, 312a, 322a, 332a: first positioning structures, 313a, 323a, 333a: limiting portions, 314a, 324a, 334a: alignment grooves, 315a, 325a, 335a: auxiliary ribs, 316a, 326a, 336a: side wall surfaces, 317a, 327a, 337a: mounting surfaces, 318a, 328a, 338a: through slots, 339: alignment bases, 40: driving piece, 41: push rod, 50: image generation module. DETAILED DESCRIPTION OF THE INVENTION

[0029] The terms used in the embodiments of this application are used only to describe particular embodiments of this application and are not intended to limit this application.

[0030] An embodiment of the present application provides a display device, which is a display device based on projection technology and can realize image display of a display image by projecting a 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 (abbreviated as VR) technology or enhanced reality (abbreviated as AR) technology.

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

[0032] FIG. 1 is a diagram illustrating a display scenario of a head-up display device in a vehicle according to an embodiment of the present application.

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

[0034] Of course, in some other examples, the vehicle may further include other structures to complete the functionality of the vehicle, for example, the vehicle may further include a braking system, a driving system, a camera, sensors, etc.

[0035] The vehicle further includes a display device 100. The display device 100 may be disposed under a windshield 200, for example, under a dashboard housing of the vehicle. The display device 100 may include an image generation module 50 and a reflection unit. Because the windshield has a curved lens structure, the reflection 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, navigation information, etc., 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 can reflect the display image and receive it at the driver's eye 300. The display image is reflected by the windshield component 200, and a visible virtual image is formed in an imaging area on the side of the windshield component 200 that is away from the driver's eye 300, thereby displaying the display image and allowing the driver to obtain relevant information about the windshield ahead. This reduces traffic risks due to distraction, etc.

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

[0037] In another example, 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 continuous development of head-up display technology for vehicles, head-up display technology is gradually evolving into an augmented reality head-up display (AR-HUD). 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 the driver to experience an augmented reality visual effect. This is used to realize scenarios such as AR navigation, adaptive cruise, and lane departure warning in vehicles, improving the driver experience. The size of the curved mirror in AR-HUD display devices is usually large; for example, the length of the curved mirror is usually greater than 350 mm.

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

[0040] In the prior art, a rotating shaft and a driving accessory may be integrated into the curved mirror. The curved mirror may be rotatably disposed within the housing via the rotating shaft. The display device may further include a motor. The motor may cooperate with the driving accessory. The motor may drive the curved mirror to rotate via the driving accessory. However, if the size of the curved mirror is large (e.g., if the length exceeds 300 mm), the curved mirror becomes heavy, which increases the requirements for the strength of the rotating shaft and the driving accessory. This also increases the requirements for the strength of the molding material of the curved mirror, which are difficult to meet. Furthermore, the driving force of the driving piece and the acting force between the rotating shaft and the housing during the rotation process directly act on the curved mirror. This significantly affects the surface shape of the curved mirror, affecting the imaging of the curved mirror and reducing the image quality of the display device.

[0041] Therefore, in the prior art, the curved mirror may alternatively be separated from the rotating shaft and the driving piece. For example, the curved mirror may be disposed in the housing via a housing frame, which includes a bottom plate and a frame disposed around the bottom plate. The curved mirror may be attached to the bottom plate in an adhesive manner, and the housing frame may surround the curved mirror, thereby embedding the entire curved mirror within the housing frame. The rotating shaft may be disposed on both sides of the frame. The rotating shaft may be rotatably fitted to the housing, and the curved mirror may be rotatably disposed within the housing via the housing frame. A driving accessory may also be disposed on one side of the frame, fitted to a motor, and drive the housing frame and the curved mirror to rotate via the motor.

[0042] However, there is a large difference between the thermal expansion coefficient of the housing frame and the thermal expansion coefficient of the curved mirror. For example, the housing frame is usually made of a material with a small expansion coefficient and high strength. However, the expansion coefficient of the curved mirror is usually large, and the amount of expansion is usually related to the length, area, etc. When the size of the curved mirror is large, the length, area, etc. of the housing frame also become large, resulting in a large expansion amount of the housing frame and a small expansion amount of the curved mirror. As a result, a large expansion and deformation difference occurs between the housing frame and the curved mirror. At high or low temperatures, the deformation difference between the housing frame and the curved mirror becomes large, generating strong internal stress. As a result, the bonding strength between the housing frame and the curved mirror decreases, creating a risk of adhesive breakage and reducing the stability and reliability of the curved mirror arrangement.

[0043] In addition, the housing frame is heavy, and the impact of its own weight generates forces on the curved mirror, which changes the surface shape of the curved mirror and affects the image quality of the curved mirror. Furthermore, the housing frame is thick and voluminous. As a result, the overall size of the display device is large and requires a large space. Furthermore, the bonding area between the housing frame and the curved mirror is large, and the internal stress of the bonding adhesive also significantly affects the surface shape of the curved mirror, which degrades image quality.

[0044] Based on this, the display device provided in the present application uses multiple brackets with short lengths to allow the curved mirror to be rotatably positioned within the housing. When the curved mirror assembly requirements are met, the difference in deformation caused by the difference in the expansion coefficient between the brackets and the curved mirror can be effectively reduced, further reducing the impact of the mirror's own weight and internal stress of the bonding adhesive on the surface shape of the curved mirror. Furthermore, by achieving stable and reliable assembly of large curved mirrors, miniaturization can be achieved while maintaining image quality.

[0045] Hereinafter, a display device provided in an embodiment of the present application will be described in detail with reference to the accompanying drawings.

[0046] Fig. 2 is a diagram showing the structure of a display device according to an embodiment of the present application, and Fig. 3 is a diagram showing the division structure of a display device according to an embodiment of the present application.

[0047] 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 a bearing mechanism for the entire display device 100. A cavity may be disposed inside the housing 10. The curved mirror 20, the bracket assembly 30, the drive piece 40, and the like included in the display device 100 may all be disposed within the cavity of the housing 10. For example, as shown in FIG. 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] Curved mirror 20 may include a reflective surface 20a, and an image generation module (not shown) may further be disposed within housing 10. The image generation module may form a display image to be projected and project the formed display image onto reflective surface 20a of curved mirror 20. Reflective surface 20a may reflect the display image out of housing 10, and project the display image onto a windshield component.

[0049] For example, the image generation module may include a light source and an image forming module, and 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 alternatively have other structures capable of forming a display image. For example, the image generation module may alternatively be a micro light emitting diode display chip.

[0050] As further shown in FIG. 3 , a driving piece 40 may be further fixed within the housing 10, and the driving piece 40 is configured to drive the curved mirror 20 to rotate. The driving piece 40 may be a driving motor, for example, a linear motor. The driving piece 40 may include a push rod 41. The push rod 41 may be an output end of the driving piece 40, and the push rod may move linearly under the action of the driving piece 40. Of course, in some other examples, the driving piece 40 may alternatively be another type of motor.

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

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

[0053] FIG. 4 illustrates an assembled structure of a curved mirror and bracket assembly according to one embodiment of the present application.

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

[0055] For example, each bracket can be attached by bonding to the rear surface 20b, which solves the problem that the curved mirror 20 cannot be fixed using a screw rod or buckles, etc. Also, bonding 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). The mounting surface of the bracket can be attached and fixed to the back surface 20b of the curved mirror 20 by adhesive dispensing, 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 independently attached to the back surface 20b of the curved mirror 20 at intervals. The adhesive dispensing process needs to dispense adhesive only to localized areas of the back surface 20b to individually attach to the brackets.

[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 radian length direction of the curved mirror 20. As shown in FIG. 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 separately rotatably fitted to the housing, allowing the bracket assembly 30 and the curved mirror 20 mounted on the bracket assembly 30 to rotate relative to the housing. This allows the curved mirror 20 to be rotatably positioned within the housing, and also enables 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 ensure that the curved mirror 20 is balanced and stably fixed within the housing.

[0058] In other words, the curved mirror 20 is rotatably disposed within the housing via two separately disposed brackets, which satisfies the stable assembly requirements of the curved mirror 20. The curved mirror 20 is disposed within the housing via the bracket assembly 30, and the force acting during the rotation process acts directly on the bracket assembly 30, not on the curved mirror 20, so the area receiving the force is separated from the optical imaging area. This reduces or avoids the influence of external forces on the surface shape of the curved mirror 20, and helps ensure the image quality of the curved mirror 20.

[0059] Furthermore, the length and size of the separate and independent brackets are small, the overall size of the bracket assembly that fastens the curved mirror 20 is small, the amount of expansion of the bracket assembly is reduced, the difference in deformation between the bracket assembly and the curved mirror 20 due to the difference in expansion coefficients is reduced, and the impact on stress of the bonding layer of deformation due to the mismatch in the expansion coefficients between the bracket assembly and the curved mirror 20 is reduced, ensuring the robustness of the attachment and reducing or avoiding the risk of damage to the bonding layer, effectively improving the stability and reliability of the placement of the curved mirror 20. In this way, the bracket assembly 30 can realize the assembly of large curved mirrors and meet the assembly requirements of large curved mirrors 20.

[0060] In addition, because the bracket itself is lightweight, the use of a lightweight bracket makes it possible to assemble a large curved mirror. In this way, the influence of the bracket's weight on changes in the surface shape of the curved mirror 20 is effectively reduced, reducing the influence on the image formation of the curved mirror 20 and improving the image quality of the display device. Furthermore, because the bracket is small, multiple brackets can be flexibly arranged and the layout of multiple brackets can be made compact. This allows the overall display device to be made smaller, 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 internal stress of the adhesive bonding layer has little effect on the surface shape of the curved mirror 20. This also helps to improve image quality.

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

[0063] In the embodiment of the present application, the driving piece may alternatively be fitted to the bracket assembly 30, and the bracket assembly 30 may be moved by the driving piece to rotate the curved mirror 20 relative to the housing. In other words, the driving force of the driving piece acts directly on the bracket assembly 30. This reduces or avoids the risk of changes in the 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 within the bracket assembly 30. For example, as further shown in FIG. 3 , the bracket assembly 30 may further include a third bracket 33, and the drive piece may be fitted to the third bracket 33 so that the drive force acts on the third bracket 33. In other words, compared to when the force acting on the housing and the drive force during the rotation process are concentrated on one bracket, the force acting on the housing and the drive force during the rotation process are distributed among the third bracket 33, the first bracket 31, and the second bracket 32, thereby reducing the force acting on the brackets, thereby reducing internal stress between the brackets and the curved mirror 20 and improving the bonding strength between the entire bracket assembly 30 and the curved mirror 20. In the embodiment of the present application, an example in which the drive piece is fitted to the third bracket 33 is used. The method for fitting the drive piece to the third bracket 33 will be described in detail below.

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

[0066] 5, in order to rotate the curved mirror within the housing, a first rotating portion 311 may be arranged at one end of the first bracket 31 opposite the second bracket 32, and a first rotating groove (not shown) that fits into the first rotating portion 311 may be arranged in the housing. For example, the first rotating portion 311 may be a rotating post that protrudes from the end surface 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, and the first rotating portion 311 may extend into the first rotating groove and rotate within the first rotating groove.

[0067] Similarly, the second rotating portion 321 may be arranged on 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 arranged on the housing. For example, the second rotating portion 321 may be a rotating post protruding from the end surface 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 with the housing via the first rotating portion 311 and the second rotating portion 321, respectively. As a result, the bracket assembly 30 and the curved mirror 20 are rotatably fitted with the housing. This structure is simple and easy to implement.

[0068] A specific embodiment for attaching and fixing the bracket to the curved mirror will be described in detail below.

[0069] The multiple brackets may be attached and fixed to the curved mirror 20 in the same manner, or may be attached and fixed in different manners. In the embodiment of the present application, an example in which the multiple brackets are attached to the curved mirror 20 in the same manner will be described.

[0070] Fig. 6 is a diagram showing a structure of a first bracket according to an embodiment of the present application, and Fig. 7 is a diagram showing a rear structure of a curved mirror according to an embodiment of the present application.

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

[0072] Take the first bracket as an example. As shown in Fig. 6, first bracket 31 may include mounting surface 311a. Mounting surface 311a faces rear surface 20b of curved mirror 20 (shown in Fig. 5), and mounting surface 311a is attached and fixed to rear surface 20b, with a bonding layer being filled between mounting surface 311a and rear 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 the multiple first positioning structures 312a may be distributed on both ends of the width direction (direction perpendicular to the length direction) of the first bracket 31. For example, there may be two first positioning structures 312a (as shown in FIG. 6). Using multiple first positioning structures 312a makes it possible to position the first bracket 31 in both the length direction and width direction, which further improves the positioning accuracy during assembly of the first bracket 31 and the curved mirror 20 and makes the assembly process easier.

[0075] Similarly, there may be a plurality of second positioning structures 211a (shown in FIG. 7) on the back surface 20b of the curved mirror 20. The plurality of second positioning structures 211a correspond one-to-one to the plurality of first positioning structures 312a.

[0076] For example, there may be two first positioning structures, each of which is a positioning hole. The width dimension of one of the positioning structures may be larger than the width dimension of the other positioning structure. This reduces or eliminates the strength of the interference fit between the first bracket 31 and the curved mirror 20. The dimensional difference compensates for tolerances in the assembly or molding process of the first and second positioning structures, reduces or avoids the phenomenon of interference fit causing alignment and assembly failures, and helps reduce the impact of interference fit on the surface shape of the curved mirror 20.

[0077] For example, take two first positioning structures as an example: one first positioning structure is a circular hole, and the other first positioning structure is a runway circular hole.

[0078] FIG. 8 is a diagram showing a partial structure of part A in FIG.

[0079] 8, second positioning structure 211a may be a columnar positioning structure formed to protrude from rear surface 20b of curved mirror 20. A reinforcing rib 2111 may be provided at one end of second positioning structure 211a adjacent to rear surface 20b. Reinforcing rib 2111 is connected to second positioning structure 211a and rear surface 20b separately, thereby improving the strength of second positioning structure 211a and the bonding strength between the bracket and curved mirror 20.

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

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

[0082] Take the first bracket as an example. As shown in Fig. 6, first bracket 31 is provided with limiting portion 313a, and the surface of limiting portion 313a that faces the curved mirror may serve as the limiting surface. As shown in Fig. 7, a protruding limiting pillar 212a is provided on back surface 20b of curved mirror 20. When first bracket 31 is attached to curved mirror 20, limiting pillar 212a abuts against the limiting surface of limiting portion 313a, thereby maintaining an accurate distance between first bracket 31 and curved mirror 20.

[0083] Restriction portion 313a (shown in FIG. 6) may be provided with adhesive overflow hole 3131. By allowing excess adhesive to overflow from adhesive overflow hole 3131 when attaching and assembling the bracket to curved mirror 20, the influence of the adhesive layer formed by the adhesive on the distance between curved mirror 20 and the bracket can be reduced, and the positioning accuracy of curved mirror 20 can be further ensured.

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

[0085] The limiting portion and limiting post may be one or more. One limiting surface may be formed on one limiting portion, and the limiting surface may correspond one-to-one with the limiting post. For example, multiple limiting portions may be formed at intervals around the periphery of the bracket, and a limiting portion may also be formed at the center of the bracket. This ensures height balance of the bracket and helps further improve the placement accuracy of the curved mirror.

[0086] In an embodiment of the present application, to improve the robustness of the attachment between the bracket and the curved mirror, an alignment groove may be provided on the attachment surface of the bracket, and a protruding auxiliary rib may be formed at the bottom of the alignment groove. A protruding annular auxiliary piece may be formed on the back surface of the curved mirror. When attaching and assembling the bracket and the curved mirror, the auxiliary piece may be inserted into the alignment groove, and the auxiliary rib may be inserted into the ring of the auxiliary rib, and a bonding agent may be filled between the auxiliary rib and the auxiliary piece to form a bonding layer. The additional auxiliary rib and auxiliary piece can increase the bonding area between the bracket and the curved mirror, which improves the bonding strength between the bracket and the curved mirror and helps improve the stability and reliability of the curved mirror's placement.

[0087] Take the first bracket as an example. As shown in FIG. 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 FIG. 7, a protruding annular auxiliary piece 214a is formed on the back surface 20b of the curved mirror 20. During actual assembly, a bonding agent may be dispensed into the ring of the auxiliary piece 214a. When attaching the first bracket 31 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. When 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 FIG. 8, compared to the annular auxiliary piece 214a which is an integral ring, the annular auxiliary piece 214a may include a plurality of second sub-ribs 2141, which may be arranged at intervals around a circumference, thereby facilitating demolding of the auxiliary piece 214a when forming the curved mirror 20, facilitating demolding production, reducing or avoiding the impact of demolding on the surface shape of the curved mirror 20, and helping to ensure the imaging accuracy of the curved mirror 20.

[0089] An annular identification portion may further be disposed on the rear surface 20b of the curved mirror 20. For example, as shown in FIG. 8, an annular identification portion 216 is provided on the rear surface 20b. The annular identification portion 216 is surrounded to form an adhesive-coated area. The adhesive-coated area faces the first bracket 31. During actual assembly, a bonding agent is dispensed into the adhesive-coated area, and the mounting surface of the first bracket 31 is attached and fixed to the adhesive-coated area. The identification portion serves as a guide for accurately dispensing adhesive in the required localized area, facilitating the assembly process.

[0090] FIG. 9 is an enlarged view of a partial structure of part B in FIG.

[0091] 9, the auxiliary rib 315a may have a cross-shaped configuration, i.e., 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 increases 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 ribs 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 to the auxiliary ribs. For example, as shown in FIG. 9 , two alignment grooves 314 a may be formed in the first bracket 31, and one auxiliary rib 315 a may be formed in each alignment groove 314 a, and the two alignment grooves 314 a may be distributed at an interval in the center position in the length direction of the first bracket 31.

[0094] To further improve the bonding strength between the bracket and the curved mirror, the bracket may further include sidewalls, which may be arranged around the mounting surface. Take the first bracket 31 as an example. The first bracket 31 includes a mounting surface 311a and a sidewall 316a (shown in FIG. 6). The sidewall 316a may be a sidewall surface of the first bracket 31 in the circumferential direction.

[0095] The sidewall surface 316a may be disposed along the periphery of the mounting surface 311a, or the sidewall surface 316 a Alternatively, the mounting surface 317a and the side wall surface 316a may be disposed only around a portion of the periphery of the mounting surface 311a. For example, the first bracket 31 may further include a mounting surface 317a. The mounting surface 317a and the side wall surface 316a collectively surround the periphery of the mounting surface 311a.

[0096] FIG. 10 is a diagram showing a front structure in which a bracket and a curved mirror are assembled according to an embodiment of the present invention.

[0097] Referring to FIG. 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 an 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 portion 311 may be arranged on the mounting surface 317a.

[0098] A protruding annular connecting piece may be provided on the rear surface of the curved mirror. When the bracket is attached to the rear surface, the annular connecting piece may be located on the outer periphery of the side wall surface of the bracket. In other words, the connecting piece surrounds the outer periphery of the side wall surface, with a gap between the connecting piece and the side wall surface. A bonding layer can be formed by distributing adhesive in the gap, 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 Fig. 10, the first bracket 31 is attached to the rear 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 of the rear surface 20b. During actual assembly, adhesive can be dispensed into this gap. After the adhesive hardens, 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. Take connecting piece 213a as an example. Connecting piece 213a may include a plurality of first sub-ribs 2131 (as shown in FIG. 8). The plurality of first sub-ribs 2131 may be arranged annularly at intervals. This makes it easier to demold the connecting piece formed during imaging of curved mirror 20, and the demolding can be performed. song The influence on the surface shape of the plane mirror can be reduced or avoided.

[0101] A through slot may be further disposed on the mounting surface of the bracket, and a protruding boss may be provided on the back surface of the curved mirror. When attaching and assembling the bracket to the curved mirror, the boss may be inserted into the through slot, and the boss and the through slot may serve as a positioning mechanism. This makes it easier to accurately 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] Take the first bracket 31 for example. The mounting surface of the first bracket 31 is provided with a through slot 318a (shown in FIG. 6 ), and the rear surface 20b of the curved mirror 20 is provided with a boss 215a (shown in FIGS. 7 and 8 ). As shown in FIG. 10 , the first bracket 31 is attached to the rear surface 20b of the curved mirror 20, and the boss 215a is inserted into the through slot 318a. During actual assembly, adhesive can be dispensed into the gap between the through slot 318a and the boss 215a. After the adhesive solidifies, a bonding layer is formed between the boss 215a and the through slot 318a.

[0103] Of course, in some other examples, the through slots may alternatively be located on another surface of the bracket, for example, the through slots may alternatively be located on the mounting surface of the bracket, with bosses formed on the sides 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 disposed on the bracket and the curved mirror, respectively. For example, a groove may be formed on the circumferential sidewall (i.e., the sidewall surface) of the bracket, and a protruding positioning post may be formed on the rear surface of the curved mirror. The third positioning structure and the fourth positioning structure may be one or more, and the third positioning structure and the fourth positioning structure may correspond one-to-one.

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

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

[0107] During actual assembly, for example, a bonding agent is first applied to the rear surface of the curved mirror. The adhesive application area is the adhesive application area surrounded by the identification portion, and the adhesive is dispensed into the alignment groove. Next, the mounting surface of the first bracket is attached to the adhesive application area on the rear surface. The first positioning structure, second positioning structure, third positioning structure, and fourth positioning structure, etc., work together to ensure that the first bracket is accurately positioned. A gap is formed 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, adhesive is dispensed 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] FIG. 11 is a diagram showing the structure of a second bracket according to an embodiment of the present application.

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

[0110] Second bracket 32 ​​may be located at an end of curved mirror 20 that is adjacent to second side surface 20d of curved mirror 20. Mounting surface 327a may be located at an edge of second bracket 32 ​​that is adjacent to second side surface 20d (as shown in FIG. 10 ). Mounting surface 327a may be attached to a side end surface of second side surface 20d, and second rotating portion 321 may be disposed on mounting surface 327a.

[0111] 11, a first positioning structure 322a may be provided on mounting surface 321a. First positioning structure 322a fits into second positioning structure 211b provided on back surface 20b of curved mirror 20 (shown in FIG. 7). First positioning structure 322a and second positioning structure 211b fit together to determine the mounting position of the bracket on curved mirror 20. This facilitates alignment and assembly of second bracket 32 ​​during the assembly process.

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

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

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

[0115] 11, a through slot 328a is also disposed 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 FIG. 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 configurations of the first positioning structure 322a, the limiting portion 323a, the auxiliary rib 325a, the side wall surface 326a, the alignment groove 324a, and the through slot 328a, please refer to the configuration of the first bracket 31. Details will not be described again here.

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

[0118] FIG. 12 is a diagram showing the structure of a third bracket according to an embodiment of the present application.

[0119] As shown in FIG. 12, third bracket 33 may include mounting surface 331a, sidewall surface 336a, and mounting surface 337a. Sidewall surface 336a and mounting surface 337a collectively surround the periphery of mounting surface 331a. Mounting surface 331a is attached to back surface 20b of curved mirror 20 (shown in FIG. 5). A bonding layer may be provided between mounting surface 331a and 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 disposed adjacent to the third side 20e of the curved mirror 20 (as shown in FIG. 10). The mounting surface 337a may be located on an edge of the third bracket 33 that is adjacent to the third side 20e. The mounting surface 337a may be located on an edge of the third bracket 33 that is adjacent to the third side 20e. e The mounting surface 337a may be connected to and fitted with the driving piece 40. In this way, the driving piece 40 can rotate the curved mirror 20 via the third bracket 33.

[0121] 12, the mounting surface may be provided with an alignment base 339, which 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 may be fixedly connected via a fastener such as a screw or a square peg to realize 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, in the thickness direction, and the push rod can push or pull the third bracket 33 to rotate 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 display image.

[0123] A fifth positioning structure 3392 may further be disposed on the alignment base 339, and a sixth positioning structure (not shown) may be disposed 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 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 post. The fifth positioning structure 3392 and the sixth positioning structure may be one or more, and the fifth positioning structure 3392 may have a one-to-one correspondence with the sixth positioning structure.

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

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

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

[0128] 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 FIG. 7) on the back surface 20b of the curved mirror 20.

[0129] Similarly, a through slot may be disposed on the mounting surface 331a, which fits over a boss on the back surface of the curved mirror, and a bonding layer may be filled between the boss and the through slot 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 another surface of the third bracket 33. For example, as shown in Figure 12, the through slot 338a may be located on the mounting surface 337a. A protruding boss is provided on the third side of the curved mirror.

[0131] FIG. 13 is an assembled view of a third bracket and a curved mirror according to one embodiment of the present application.

[0132] 13, when attaching the third bracket 33 to the curved mirror 20, the mounting surface 337a can be attached to the side end surface of the third side surface 20e. The boss 215c is inserted into the through slot 338a. An adhesive is dispensed between the outer wall of the boss 215c and the inner wall of the through slot 338a to form a bonding layer, which can increase the bonding strength between the third bracket 33 and the curved mirror 20.

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

[0134] Also, please refer to the first bracket 31 for the process of fitting and assembling the third bracket 33 to the curved mirror 20. Details will not be explained again here.

[0135] It should be noted that in the description of the embodiments of the present application, unless explicitly specified and limited, the terms "attach," "connect," and "connection" should be understood in a broad sense, and may refer to, 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 can understand the specific meanings of the above terms in the embodiments of the present application based on specific cases. Terms such as "first," "second," "third," and "fourth" (if present) 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 above embodiments are only used to describe 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 above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may be further modified, or some or all of their technical features may be replaced with 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 including a housing (10), a curved mirror (20) positioned within the housing (10), and a bracket assembly (30), wherein the curved mirror (20) has a reflective surface (20a), and the curved mirror (20) is disposed within the housing (10) via the bracket assembly (30); the bracket assembly (30) includes a plurality of spaced apart brackets, each of which is individually attached and fixed to a surface of the curved mirror (20) opposite the reflective surface (20 a); 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) being respectively distributed at both ends of the curved mirror (20) in the longitudinal direction, and the first bracket (31) and the second bracket (32) being individually rotatably fitted to the housing (10).

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

3. 3. The display device of claim 2, wherein the plurality of brackets further includes 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 to the third bracket (33).

4. 4. The display device of 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. a first rotating portion (311) is provided at an end of the first bracket (31) facing away from the second bracket (32); a first rotating groove that fits into the first rotating portion (311) is provided in the housing (10); and the first bracket (31) realizes a rotatable connection by fitting between the first rotating portion (311) and the first rotating groove; 5. A display device as claimed in any one of claims 1 to 4, wherein a second rotating portion (321) is provided at an end of the second bracket (32) facing away from the first bracket (31), the housing (10) is provided with a second rotating groove that fits into the second rotating portion (321), and the second bracket (32) achieves a rotatable connection by fitting between the second rotating portion (321) and the second rotating groove.

6. 6. A display device as claimed in any one of claims 1 to 5, wherein the bracket is provided with a first positioning structure (312a), the curved mirror (20) is provided with a second positioning structure (211a) that fits into the first positioning structure (312a), and the bracket and the curved mirror (20) are positioned by the fit between the first positioning structure (312a) and the second positioning structure (211a).

7. 7. A 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 an end face of the limiting column (212a) abuts and engages with the limiting portion (313a).

8. 8. The display device of claim 1, further comprising a bonding layer, wherein the bracket is attached 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) disposed around the mounting surface (311a), and the bonding layer is filled between the mounting surface (311a) and the curved mirror (20); 9. The display device of claim 8, wherein a protruding connecting piece (213a) is provided on a surface of the curved mirror (20) opposite the reflective surface (20a), the connecting piece (213a) is positioned on the outer periphery of the side wall surface (316a), and the bonding layer is filled between the connecting piece (213a) and the side wall surface (316a).

10. 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) being 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); 11. The display device according to claim 9 or 10, wherein a protruding annular auxiliary piece (214a) is provided on a 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) being spaced apart.

14. 14. A display device as claimed in any one of claims 9 to 13, wherein a through slot (318a) is provided in the mounting surface (311a), and a protruding boss (215a) is provided on the surface of the curved mirror (20) opposite the reflective surface (20a), and the boss (215a) is inserted into the through slot (318a).

15. 15. The display device of claim 1, further comprising an image generation module configured to form a display image, 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 mounted on the vehicle.

Images