A folded telecentric display device

Abstract

The application belongs to the field of optical systems, and particularly relates to a folded telephoto display device, which comprises optical devices, a deformation support for placing the optical devices and changing the relative positions of the optical devices, and the deformation support comprises a first panel, a connecting panel, a second panel and a frame which are sequentially rotatably connected, the first panel is rotatably connected with the frame through a rotating shaft with damping, a first magnet is arranged on a surface of the second panel close to the frame, a second magnet is arranged on a surface of the frame close to the second panel, when the first panel is rotated in a direction away from the frame until the first magnet and the second magnet are adsorbed to each other, the deformation support is in a first state, the first panel, the connecting panel, the second panel and the frame surround a preset space, a telephoto display light path formed by the optical devices propagates in the preset space and forms an image, and when the first panel is rotated in a direction close to the frame until the first panel is attached to a front side of the frame, the deformation support is in a second state.

Description

Technical Field

[0001] This application belongs to the field of optical systems, and more specifically relates to a foldable telephoto display device. Background Technology

[0002] As an optical system, a telephoto display device typically consists of multiple optical elements (such as lenses, mirrors, prisms, etc.) arranged in a predetermined optical path sequence. The relative positions and orientation accuracy between these elements directly affect the system's imaging quality or optical performance. In existing technologies, to ensure the positioning stability of the optical elements and the consistency of the optical path, optical systems often employ a fixed, rigid structure. This means that after assembly, the relative positions of the elements remain unchanged, resulting in a non-foldable, integrated structure. Fixed optical systems maintain their unfolded size during storage, transportation, or carrying, often occupying a large space and failing to meet the demands for lightweight, miniaturized, and rapid deployment.

[0003] To reduce the storage volume of optical systems, some existing solutions attempt to adopt a modular disassembly structure, that is, assembling each optical module on-site before use. However, this approach has the following drawbacks: First, the disassembly and assembly process is cumbersome, affecting deployment efficiency; second, after repeated disassembly and assembly, the mechanical interfaces between modules are prone to wear or positioning deviations, making it difficult to guarantee the positional accuracy of repeated assembly of optical components; third, the disassembled modules need to be stored separately, posing a risk of loss or contamination.

[0004] Therefore, how to achieve effective folding of the optical system in its non-working state to reduce space occupation while ensuring the optical path accuracy and structural stability, and at the same time ensure that it can quickly and accurately restore its original optical performance after multiple folding and unfolding, has become an important technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] This application is made based on the above-mentioned needs of the prior art. The technical problem to be solved by this application is to provide a foldable far-view display device that can be conveniently stored while realizing far-view display.

[0006] To address the above problems, the technical solution provided in this application includes: A foldable telephoto display device is provided, comprising: optical components including a light source, a beam splitter, and a curved reflector; a deformable bracket for placing the optical components and changing their relative positions, the deformable bracket having a first state and a second state; the deformable bracket includes a first panel, a connecting panel, a second panel, and a frame rotatably connected in sequence, and the frame is rotatably connected to the first panel; the first panel and the frame are rotatably connected via a damped pivot; a first magnet is disposed on the surface of the second panel near the frame; a second magnet is disposed on the surface of the frame near the second panel; when the first panel rotates away from the frame until the first magnet and the second magnet attract each other, the deformable bracket is in the first state, the first panel, the connecting panel, the second panel, and the frame surround to form a preset space having a predetermined direction; the telephoto display light path formed by the light source, the beam splitter, and the curved reflector propagates within the preset space and forms a magnified and distant image at the exit pupil; when the first panel rotates towards the frame until it is in contact with the front side of the frame, the deformable bracket is in the second state, the various components forming the deformable bracket are close to or intersect each other to share space, becoming a folded state.

[0007] Preferably, the first panel has a first window, and the beam splitter is located at the first window; the second panel has a second window, and the light source is located at the second window; the frame has a third window, and the curved reflector is located at the third window; when the deformable support is in the first state, the optical device forms a far-image display optical path, the light source and the beam splitter are positioned opposite each other, and the beam splitter and the curved reflector are positioned opposite each other; the light emitted by the light source is incident on the beam splitter, reflected by the beam splitter and exiting through the curved reflector, the light reflected by the curved reflector is emitted towards the beam splitter, and after being projected by the beam splitter, a magnified final image with an imaging distance of 3-5m is formed at the exit pupil.

[0008] Preferably, in the first state, the angle between the frame and the first panel is 28°-48°; the angle between the first panel and the connecting panel is 107°-127°; the angle between the connecting panel and the second panel is 90°-110°; and the angle between the second panel and the frame is 95°-115°.

[0009] Preferably, the angle between the frame and the first panel is 38°; the angle between the first panel and the connecting panel is 117°; the angle between the connecting panel and the second panel is 100°; and the angle between the second panel and the frame is 105°.

[0010] Preferably, the opposite ends of the first panel are rotatably connected to the connecting panel and the frame via damped pivots.

[0011] Preferably, a first guide groove is provided on the surface of the second panel near the frame, and the first magnet is disposed in the first guide groove; a second guide groove is provided on the surface of the frame near the second panel, and the second magnet is disposed in the second guide groove.

[0012] Preferably, the foldable far-view display device further includes a housing assembly, the housing assembly comprising: a housing having an accommodating space capable of accommodating the optical components and the deformable support in a second state; and a light-shielding flexible member connected between the edge of the first panel and the edge of the housing to cover the space formed between the first panel and the housing in any state of the deformable support.

[0013] Preferably, the housing assembly further includes a touch panel, which is detachably connected to the connecting panel. The connecting panel is provided with a preset magnet. When the deformation bracket is in the first state, the touch panel is independent of the foldable far-view display device and can be placed on the desktop for operation and control. When the deformation bracket is in the second state, the touch panel covers the area of ​​the connecting panel and is relatively fixed under the action of the preset magnet.

[0014] Preferably, the housing assembly further includes a bracket disposed on the rear side of the housing. The bracket includes a proximal end and a distal end. The proximal end is connected to the rear side of the rear housing via a damped pivot, and the distal end rotates around the pivot. A magnet is disposed inside the bracket, and the magnet attracts the housing. When the bracket is not needed, the distal end is attached to the housing. When the bracket is needed, the distal end moves away from the housing and forms a certain angle with the housing to achieve support.

[0015] Preferably, the housing assembly further includes a light shield, one end of which is rotatably disposed on the front side of the first panel. The light shield has a folded state and an unfolded state. The light shield includes a first plate, a second plate, and a third plate. The first plate is rotatably connected to the upper end of the first panel. The second plate and the third plate are rotatably connected to both sides of the first plate. The second plate and the third plate are used to support both sides of the first window on the first panel in the unfolded state.

[0016] Compared with existing technologies, this application operates in the first state and is stored in the second state, effectively reducing the space occupied in the non-operating state and improving portability and transportation efficiency. By setting the optical system as a foldable structure, each optical element or component can be folded relative to each other in the non-operating state, significantly reducing the overall volume and facilitating storage, carrying, and transportation. This application uses a dual locking mechanism of a damped hinge and magnets to fix the position, improving the angular stability in the operating state; in addition, the damped hinge ensures the smoothness of the folding and unfolding process, and the magnets provide a sense of positioning during the folding and unfolding process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the structure of the foldable far-view display device in the first state according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the foldable far-view display device in the second state according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the first state of the deformable support in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the deformable support in the second state in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the first panel in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the second panel in an embodiment of the present invention; Figure 7 This is a schematic diagram of the frame structure in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the flexible light-shielding component in an embodiment of the present invention.

[0019] Figure label: 1. Light source; 2. Beam splitter; 3. Curved reflector; 4. First panel; 401. First window; 402. Front-facing camera; 403. Connecting accessories; 404. First connector; 405. Second connector; 5. Connecting panel; 501. Preset magnet; 6. Second panel; 601. Second window; 602. First guide groove; 603. First magnet; 7. Frame; 701. Third window; 702. Second guide groove; 703. Second magnet; 8. Front shell; 9. Rear shell; 901. Button; 902. External interface; 10. Light-shielding flexible component; 1001. First part; 1002. Second part; 1003. Third part; 1004. Fourth part; 11. Touchpad; 12. Bracket; 13. Light-shielding plate; 1301. First plate; 1302. Second plate; 1303. Third plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the term "connected" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] Throughout the text, the terms “top,” “bottom,” “above,” “below,” and “on top” refer to the relative positions of components of the device, such as the relative positions of the top and bottom substrates within the device. It is understood that the device is multifunctional and independent of its spatial orientation.

[0023] To facilitate understanding of the embodiments of this application, the following will provide further explanation and description with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this application.

[0024] This embodiment provides a foldable far-view display device, such as... Figures 1-8 As shown.

[0025] The foldable remote image display device includes an internal deformation component and a housing component.

[0026] The internal deformation assembly includes optical components and a deformation bracket for fixing the optical components and changing their relative positions. The deformation bracket has a first state and a second state. When the deformation bracket is in the first state, the various components forming the deformation bracket enclose a preset space, i.e., it is in an unfolded state. At this time, the optical components can form a far-image display light path, presenting a magnified, upright image at the exit pupil. When the deformation bracket is in the second state, the various components forming the deformation bracket are close to each other or cross each other to share space, i.e., it is in a folded state, reducing space occupation and facilitating storage.

[0027] The optical components include a light source 1, a beam splitter 2, and a curved reflector 3. When the deformable support is in its first state, the corresponding light source 1, beam splitter 2, and curved reflector 3 work together to form the optical path for the far-image display. Specifically, the light source 1 provides the light source for the far-image display optical path. The beam splitter 2 can reflect and transmit the received light. A portion of the received light will change its propagation direction on the beam splitter 2 and return to the direction of the light-emitting material, while a portion of the light will be refracted and pass through the beam splitter 2 before exiting. The beam splitter 2 has a reflection value (R) and a transmission value (T), and the reflection and transmission of the beam splitter 2 are usually characterized by the splitting ratio, i.e., the value of R:T. The beam splitter 2 is arranged opposite to the light source 1. A portion of the light emitted by the light source 1 is refracted and exits to the outside of the foldable far-image display device. The optical path formed by this portion of light is an invalid optical path, that is, it no longer participates in the formation of the final image; the other portion is reflected and exits into the foldable far-image display device, forming an effective optical path. The optical path formed by this portion of light participates in the formation of the final image. The curved reflector 3 has a concave curved surface, which is positioned opposite to the beam splitter 2. Light reflected by the beam splitter 2 will be incident on the concave reflective surface of the curved reflector 3 and reflected thereon. The reflected light will then be incident on the beam splitter 2. The light path that propagates in the form of transmission is the effective light path, and the light path that propagates in the form of reflection is the ineffective light path. The effective light path forms the final image at the exit pupil, and the final image has an imaging distance of 3-5m.

[0028] The deformable support includes a first panel 4, a connecting panel 5, a second panel 6, and a frame 7, which are arranged around each other and rotatably connected. Specifically, the first panel 4 is pivotally connected to both the connecting panel 5 and the frame 7; opposite sides of the connecting panel 5 are pivotally connected to both the first panel 4 and the second panel 6; opposite sides of the second panel 6 are pivotally connected to both the connecting panel 5 and the frame 7; and opposite sides of the frame 7 are pivotally connected to both the second panel 6 and the first panel 4. More specifically, the first panel 4 and the frame 7 are connected via a damped pivot, and the first panel 4 and the connecting panel 5 are connected via a damped pivot.

[0029] Among them, such as Figure 5 As shown, a first window 401 is provided on the first panel 4, and a beam splitter 2 is provided inside the first window 401. A front-facing camera 402 is provided on the area of ​​the first panel 4 below the first window 401. A connecting accessory 403 is covered and attached to the side of the first panel 4 near the connecting panel 5. The connecting accessory 403 has a window adapted to the first window 401, and a first connector 404 is provided at the lower edge of the window. The first connector 404 is connected to the connecting panel 5 through a damped pivot.

[0030] Two preset magnets 501 are provided on the connecting panel 5, and the two preset magnets 501 are symmetrically arranged on the outer side of the central axis of the connecting panel 5. The touchpad 11 is attracted by the magnetic force of the preset magnets 501, which makes it convenient to store the touchpad 11 in a folded state.

[0031] like Figure 6 As shown, a second window 601 is provided on the second panel 6, and the light source 1 is located at the second window 601. The light emitted by the light source 1 passes through the second window 601 and is emitted. Two symmetrical first guide grooves 602 are provided on the surface of the second panel 6 near the frame 7, and a first magnet 603 is provided inside the first guide groove 602.

[0032] like Figure 7 As shown, a third window 701 is provided on the frame 7, and the curved reflector 3 is disposed at the third window 701. A second connector 405 at the upper edge of the connecting fitting 403, which is fitted between the frame 7 and the first panel 4, is rotatably connected via a damped rotating shaft. On the surface of the frame 7 near the second panel 6, at a position corresponding to the first guide groove 602, a second guide groove 702 is provided, and a second magnet 703 is disposed inside the second guide groove 702. The first magnet 603 and the second magnet 703 attract each other.

[0033] like Figure 3 As shown, when the deformable support is in the first state, based on the position of the frame 7, the first panel 4 is tilted in front of the frame 7, the second panel 6 is tilted below the frame 7, and the connecting panel 5 connects the first panel 4 and the second panel 6. Further, in the first state, the angle between the frame 7 and the first panel 4 ranges from 28° to 48°; the angle between the first panel 4 and the connecting panel 5 ranges from 107° to 127°; the angle between the connecting panel 5 and the second panel 6 ranges from 90° to 110°; and the angle between the second panel 6 and the frame 7 ranges from 95° to 115°. Even further, the angle between the frame 7 and the first panel 4 is 38°, the angle between the first panel 4 and the connecting panel 5 is 117°, the angle between the connecting panel 5 and the second panel 6 is 100°, and the angle between the second panel 6 and the frame 7 is 105°.

[0034] like Figure 4 As shown, when the deformable bracket is in the second state, based on the position of the frame 7, the rear side of the connecting accessory 403 is attached to the front side of the frame 7, the connecting panel 5 is on the extension surface of the connecting accessory 403 and located on the lower side of the connecting accessory 403, and the plane of the second panel 6 intersects with the plane of the connecting panel 5.

[0035] The deformable bracket can switch between a first state and a second state. When the deformable bracket changes from the first state to the second state, the user needs to apply a squeezing force to the lower edge of the first panel 4 in the direction of the frame 7. This forces the first magnet 603 and the second magnet 703 to separate, while overcoming the resistance of the two damping pivots on the upper and lower parts of the first panel 4 to move closer to the frame 7. This causes the connecting panel 5 and the second panel 6 to rotate until the second panel 6 and the connecting panel 5 are rotated below the frame 7, and the first panel 4 is placed against the front of the frame 7. At this time, the deformable bracket is in the second state. When the deformable bracket changes from the second state to the first state, the user needs to apply a pulling force to the lower edge of the first panel 4 to overcome the two damping pivots and move away from the frame 7. During the movement, the first magnet 603 and the second magnet move closer to each other. When the distance between them is sufficient to generate an attractive force, saving the user's pulling force, the first magnet 603 and the second magnet 703 attract each other, and the deformable bracket changes back to the first state.

[0036] In operation, an angle locking mechanism precisely limits and locks folding joints or rotating components, ensuring that each optical element remains stably positioned and angled after unfolding. This locking mechanism effectively resists external vibrations, impacts, or gravity, maintaining the relative pose accuracy between optical elements and thus guaranteeing the imaging quality or optical path transmission stability of the optical system. Specifically, a composite locking method combining a damping shaft and a magnet is employed. In operation, the damping shaft provides continuous rotational damping force, suppressing positional drift caused by external vibrations or minor impacts; simultaneously, the magnet provides locking through magnetic attraction, creating a stable retaining force after the folding component is fully unfolded. The combined effect of these two mechanisms reliably locks the working angle of the optical system, effectively avoiding the loosening or insecure locking problems that may occur with single locking methods (such as relying solely on damping or mechanical latches). Furthermore, the damping hinge provides uniform resistance during folding and unfolding, ensuring smooth and controllable operation and preventing sudden flipping due to gravity or external forces. Meanwhile, the magnet attracts the user when approaching the predetermined position, providing a clear tactile and audible feedback to facilitate quick assessment of whether the device has been unfolded to the working position, enhancing the user-friendliness of the human-machine interface. The magnetic engagement is a non-contact or soft-contact locking method, reducing mechanical wear caused by friction or impact during repeated use compared to purely mechanical snap-fit ​​structures. The damping hinge uses wear-resistant materials and a sealed structure, maintaining stable damping performance during long-term repeated folding. The combination of these two elements effectively extends the service life of the folding mechanism and ensures repeatable positioning accuracy after multiple folds and unfolds. Additionally, both the damping hinge and the magnet can be integrated within a limited space, eliminating the need for additional structural space or complex external locking devices. This composite locking method is highly integrated with the folding structure of the optical system, facilitating a compact and lightweight design of the overall device and meeting the stringent size and weight requirements of portable optical equipment.

[0037] The housing assembly includes a housing, a light-shielding flexible element 10, a touch panel 11, a bracket 12, and a light-shielding plate 13.

[0038] The housing includes a front housing 8 and a rear housing 9 connected together.

[0039] The rear shell 9, located at the rear, has a rear wall, a side wall connected to it, and an opening formed on the front side. The rear wall and the side wall form an accommodating space, and a protrusion is provided on the outer side of the side wall. In addition, a button 901 and an external interface 902 are also provided on the outer side of the side wall.

[0040] The front shell 8, located at the front, has sidewalls. The sidewalls have internal grooves that mate with protrusions on the outer sidewalls of the outer shell, creating a locking connection. The front shell 8 extends forward from the rear shell 9, forming a larger accommodating space. When the internal deformation component is in its second state, the accommodating space formed by the front and rear shells 9 accommodates the internal deformation component.

[0041] 10, such as light-shielding flexible component Figure 8 As shown, it is connected to the edge of the first panel 4 and the front edge of the front shell 8, respectively. Specifically, the light-shielding flexible member 10 includes a first part 1001, a second part 1002, a third part 1003, and a fourth part 1004 that are in contact with each other. The first part 1001 and the third part 1003 are symmetrically arranged on the left and right sides. The first part 1001, the second part 1002, the third part 1003, and the fourth part 1004 are all quadrilateral in shape. One side of the first part 1001 is connected to one of the left and right sides of the first panel 4, and the other side is connected to the same side of the front shell 8. The remaining two sides are connected to the second part 1002 and the fourth part 1004, respectively. One side of the second part 1002 is connected to the lower side of the first panel 4, and the other side is connected to the lower side of the front shell 8. One side of the third part 1003 is connected to the other side of the left and right sides of the first panel 4, and the other side is connected to the same side of the front shell 8. The remaining two sides are connected to the second part 1002 and the fourth part 1004, respectively. One side of the fourth part 1004 is connected to the upper edge of the first panel 4, and the other side is connected to the lower edge of the shell. Thus, when the deformation bracket is in the first state, the light-shielding flexible member 10 will cover the space formed by the first panel 4 and the front shell 8, ensuring the airtightness and dark environment of the optical device, which is beneficial to the propagation of light and imaging. When the deformable bracket is in the second state, the first part 1001 and the third part 1003 will be housed between the first panel 4 and the housing, and the second part 1002 will be housed between the touch panel 11 and the housing. If the touch panel 11 is not placed in the designated area, the remaining light-shielding flexible part 10 will be exposed to the outside, specifically in the area between the lower edge of the first panel 4 and the lower edge of the housing. The fourth part 1004 unfolds to shield the upper side of the first panel 4 and the housing.

[0042] When the internal deformation component is in the first state, the light-shielding flexible component 10 is fully extended, and the touchpad 11 is independent of the foldable far-view display device. It can be placed on a table for operation to control the light source 1. When the internal deformation component is in the second state, the first panel 4 covers part of the opening of the front shell 8, and the light-shielding flexible component 10 folds and retracts to cover the remaining window of the front shell 8. Corresponding to the position of the connecting panel 5 in the second state, the touchpad 11 covers the folded and retracted area of ​​the light-shielding flexible component 10 under the attraction of the preset magnet 501.

[0043] A bracket 12, located on the rear side of the rear shell 9, includes a proximal end and a distal end. The proximal end is connected to the rear side of the rear shell 9 via a pivot. Furthermore, the pivot is a damped pivot, allowing for adjustable hovering positions to suit the viewer. Additionally, a magnet is installed inside the bracket 12. The magnet can adhere to the rear side of the shell, keeping the bracket 12 folded when not in use. When the bracket 12 is needed, external force is applied to overcome the attraction, causing the distal end of the bracket 12 to move away from the rear shell 9. The bracket 12 forms an angle with the rear shell 9, allowing the foldable far-view display device to be placed on a table.

[0044] A light-shielding plate 13 is disposed on the front side of the first panel 4 and is rotatably connected to the upper end of the first panel 4. The light-shielding plate 13 has a folded state and an unfolded state. Specifically, the light-shielding plate 13 includes a first plate 1301, a second plate 1302, and a third plate 1303. The first plate 1301 is a main plate, rotatably connected to the upper end of the first panel 4, and is rectangular. The second plate 1302 and the third plate 1303 are respectively connected to both sides of the first plate 1301. The second plate 1302 and the third plate 1303 are used to support both sides of the first window 401 in the unfolded state. In the unfolded state, the light-shielding plate 13 at least partially surrounds three sides of the first window 401, facilitating the blocking of external light from affecting and interfering with the final image.

[0045] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above description is only a specific embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A foldable far-view display device, characterized in that, include: Optical components, including light sources, beam splitters, and curved mirrors; A deformable support is used to place optical components and change their relative positions. The deformable support has a first state and a second state. The deformable support includes a first panel, a connecting panel, a second panel, and a frame that are rotatably connected in sequence, and the frame is rotatably connected to the first panel; the first panel and the frame are rotatably connected via a damped pivot; a first magnet is provided on the surface of the second panel near the frame; a second magnet is provided on the surface of the frame near the second panel. When the first panel rotates away from the frame until the first magnet and the second magnet attract each other, the deformation bracket is in the first state, and the first panel, the connecting panel, the second panel and the frame surround to form a preset space with a preset direction through it. The light source, beam splitter, and curved mirror form a distant image display where the light path propagates within a preset space and forms a magnified and distant image at the exit pupil; When the first panel rotates toward the frame until it fits against the front of the frame, the deformation bracket is in the second state, where the various components forming the deformation bracket are close to or cross each other to share space, thus becoming a folded state.

2. The foldable far-image display device according to claim 1, characterized in that, The first panel has a first window, and the beam splitter is located at the first window; The second panel has a second window, and the light source is located at the second window; A third window is provided on the frame, and the curved reflector is located at the third window; When the deformable support is in the first state, the optical device forms a far-image display optical path. The light source is set opposite to the beam splitter, and the beam splitter is set opposite to the curved reflector. The light emitted by the light source is incident on the beam splitter, reflected by the beam splitter and exited by the curved reflector. The light reflected by the curved reflector is emitted towards the beam splitter and projected by the beam splitter to form a magnified final image with an imaging distance of 3-5m at the exit pupil.

3. The foldable far-image display device according to claim 2, characterized in that, In the first state, the angle between the frame and the first panel ranges from 28° to 48°. The included angle between the first panel and the connecting panel is in the range of 107°-127°; The included angle between the connecting panel and the second panel is in the range of 90°-110°; The angle between the second panel and the frame ranges from 95° to 115°.

4. The foldable far-image display device according to claim 3, characterized in that, The angle between the frame and the first panel is 38°; the angle between the first panel and the connecting panel is 117°; the angle between the connecting panel and the second panel is 100°; and the angle between the second panel and the frame is 105°.

5. The foldable far-image display device according to claim 1, characterized in that, The two opposite ends of the first panel are rotatably connected to the connecting panel and the frame via damped pivots.

6. The foldable far-image display device according to claim 2, characterized in that, A first guide groove is provided on the surface of the second panel near the frame, and the first magnet is disposed in the first guide groove; A second guide groove is provided on the surface of the frame near the second panel, and the second magnet is disposed in the second guide groove.

7. The foldable far-image display device according to claim 1, characterized in that, The foldable far-view display device further includes a housing assembly, the housing assembly comprising: The housing has an accommodating space that can accommodate optical components and deformable supports in the second state; A light-shielding flexible component is connected between the edge of the first panel and the edge of the housing to cover the space formed between the first panel and the housing in any state of deformation support.

8. The foldable far-image display device according to claim 7, characterized in that, The housing assembly also includes a touch panel, which is detachably connected to the connecting panel. The connecting panel is provided with a preset magnet. When the deformation bracket is in the first state, the touch panel is independent of the foldable far-view display device and can be placed on the desktop for operation and control. When the deformation bracket is in the second state, the touch panel covers the area of ​​the connecting panel and is relatively fixed under the action of the preset magnet.

9. The foldable far-image display device according to claim 7, characterized in that, The housing assembly also includes a bracket disposed on the rear side of the housing. The bracket includes a proximal end and a distal end. The proximal end is connected to the rear side of the rear housing via a damped pivot, and the distal end rotates about the pivot. The bracket is equipped with a magnet inside, which attracts the housing. When the bracket is not needed, the distal end is attached to the housing; when the bracket is needed, the distal end is moved away from the housing and forms a certain angle with the housing to achieve support.

10. The foldable far-view display device according to claim 7, characterized in that, The housing assembly also includes a light-shielding plate, one end of which is rotatably disposed on the front side of the first panel. The light-shielding plate has a folded state and an unfolded state. The light-shielding plate includes a first plate, a second plate, and a third plate. The first plate is rotatably connected to the upper end of the first panel, and the second and third plates are rotatably connected to both sides of the first plate. The second and third plates are used to support the first window on both sides of the first panel in the unfolded state.

Images