Split type vehicle-mounted virtual image display system and vehicle

Abstract

The invention discloses a split type vehicle-mounted virtual image display system and a vehicle. The split type vehicle-mounted virtual image display system is particularly suitable for functions of vehicle-mounted entertainment, information prompt, navigation and the like. According to the system, the image generation unit and the imaging module are separately arranged and mounted on the top and the headrest area in the vehicle respectively, efficient space utilization is achieved, and the floating virtual image is generated in the visible range of passengers in the back row. The system not only improves the space utilization rate of vehicle-mounted display, but also gives consideration to the simplicity of structural design and the improvement of the display effect. Through cooperation of the angle adjusting unit and the image control module, the system can realize dynamic optimization of virtual images, and is suitable for different user requirements and vehicle-mounted environments. The vehicle-mounted virtual image display system has relatively high intellectualization and individuation functions, and is suitable for wide application of future vehicle-mounted entertainment and interaction technologies.

Description

Technical Field

[0001] This application relates to the technical field of in-vehicle image display, and particularly to a split in-vehicle virtual image display system and a vehicle. Background Art

[0002] Currently, most in-vehicle entertainment display systems use traditional liquid crystal displays (LCDs) as image display devices. The liquid crystal displays are usually installed on the back of the front seats or in the roof folding structure. Such display devices have obvious limitations: on the one hand, they are opaque structures themselves, occupying a large physical space and restricting the expansion of the screen size; on the other hand, the fixed installation method and rigid structure limit the viewing angle adjustment and immersive experience.

[0003] In the utility model patent with the application number 202322535408.6 and the invention patent with the application number 202311201722.9, a headrest integrated display device is proposed, in which an imaging module and an image source are used to cooperate to output a virtual image, thus overcoming problems such as space occupation, restricted screen size, and fixed installation method in the above problems. However, the method adopted therein is to integrate the entire imaging module and image source inside the headrest. Therefore, the display device occupies a large amount of headrest volume, seriously affecting the riding comfort and the safety of the seat structure. Therefore, there is currently a lack of a solution with a flexible structure, space-saving, and capable of presenting a large-size virtual image at the same time.

[0004] Therefore, the prior art still needs to be improved and enhanced. Summary of the Invention

[0005] The technical problem to be solved by this application is to provide a split in-vehicle virtual image display system and a vehicle in view of the deficiencies of the prior art.

[0006] In the first aspect of the embodiments of this application, a split in-vehicle virtual image display system is disclosed, which includes: an image generation unit and an imaging module that are disposed inside the vehicle and are split;

[0007] The image generation unit is used to output the original image light;

[0008] The imaging module is located on the optical path of the original image light and is used to form an enlarged virtual image at a target position inside the vehicle for the original image light.

[0009] Optionally, the image generation unit is located in the roof area or on the B-pillar, and the imaging module is placed inside or on the headrest.

[0010] Optionally, the image generation unit is a liquid crystal display, a digital light processor, a micro light-emitting diode, an organic light-emitting diode, or a liquid crystal on silicon display.

[0011] Optionally, the imaging module is any one of a mirror, a free-form mirror, a holographic optical element, or a metalens.

[0012] Optionally, the imaging module is a free-form mirror, and the free-form mirror is provided with an anti-glare and anti-fingerprint coating.

[0013] Optionally, the imaging module includes: a collimating lens group, a convex lens, a plane mirror, and a concave mirror arranged in sequence;

[0014] The collimating lens group is used to collimate the original image light into parallel light;

[0015] The convex lens is located on the optical path of the parallel light and is used to form a preliminary magnified virtual image;

[0016] The plane mirror is used to reflect the light output by the convex lens and move the preliminary magnified virtual image to the target height;

[0017] The concave mirror is used to reflect the light beam output by the plane mirror and move the imaging position of the virtual image to the target position.

[0018] Optionally, the imaging module further includes: an aspherical lens group composed of an aspherical convex lens and an achromatic lens;

[0019] The aspherical lens group is used to correct spherical aberration and chromatic aberration.

[0020] Optionally, the imaging module is further connected with an angle adjustment unit;

[0021] The angle adjustment unit includes: an X-axis rotation axis, an X-axis bracket, a Y-axis rotation axis, a Y-axis bracket, and a driving module;

[0022] The plane mirror is fixed on the X-axis rotation axis through the X-axis bracket and rotates synchronously with the X-axis rotation axis;

[0023] The concave mirror is fixed on the Y-axis rotation axis through the Y-axis bracket and rotates synchronously with the Y-axis rotation axis;

[0024] The driving module includes: a micro stepping motor and an MCU; the micro stepping motor controls the rotation angles of the X-axis rotation axis and the Y-axis rotation axis under the drive of the MCU.

[0025] Optionally, it further includes an image control module; the image control module includes: a main controller and an image signal processor connected by a differential serial bus.

[0026] In a second aspect, the present application further provides a vehicle, which includes: the split-type in-vehicle virtual image display system described above.

[0027] Beneficial effects:

[0028] The present invention discloses a split-type in-vehicle virtual image display system and a vehicle, which are particularly suitable for functions such as in-vehicle entertainment, information prompting, and navigation. By separately arranging the image generation unit and the imaging module and installing them on the top of the vehicle interior and the headrest area respectively, the system realizes the efficient utilization of space and generates a floating virtual image within the visible range of the rear passengers. The system of the present invention not only improves the space utilization rate of in-vehicle displays, but also takes into account the simplicity of the structural design and the improvement of the display effect. Through the cooperation of the angle adjustment unit and the image control module, the system can realize the dynamic optimization of the virtual image to adapt to different user needs and in-vehicle environments. The in-vehicle virtual image display system has high intelligent and personalized functions and is suitable for the wide application of future in-vehicle entertainment and interaction technologies. Description of the drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative labor, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a schematic optical path diagram of the first embodiment of the split-type in-vehicle virtual image display system provided by the present application;

[0031] Figure 2 It is a schematic structural diagram of the first embodiment of the split-type in-vehicle virtual image display system provided by the present application when in specific application;

[0032] Figure 3 It is a schematic optical path diagram of the second embodiment of the split-type in-vehicle virtual image display system provided by the present application;

[0033] Figure 4 It is a schematic structural diagram of the second embodiment of the split-type in-vehicle virtual image display system provided by the present application when in specific application;

[0034] Figure 5 It is a schematic optical path diagram of the third embodiment of the split-type in-vehicle virtual image display system provided by the present application;

[0035] Figure 6 It is a schematic structural diagram of the third embodiment of the split-type in-vehicle virtual image display system provided by the present application when in specific application. Detailed implementation manners

[0036] This application provides a split-type in-vehicle virtual image display system and a vehicle. To make the objectives, technical solutions, and effects of this application clearer and more explicit, the following further elaborates on this application with reference to the accompanying drawings and by way of examples. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0037] Those skilled in the art of this technology can understand that, unless specifically stated otherwise, the singular forms "a", "an", "the", and "said" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the specification of this application means the presence of the described features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or their groups. It should be understood that when we say an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there may also be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The phrase "and / or" used herein includes all or any unit and all combinations of one or more of the associated listed items.

[0038] In the in-vehicle scenario, the rear entertainment seat display screen is usually installed on the back of the front seat or in the roof folding structure. Such display screens are designed specifically for rear passengers and support functions such as independent audio and video playback and game entertainment. Although such display screens satisfy the passengers' independent control of display playback, there are obvious limitations to such display devices: on the one hand, they are opaque structures themselves, occupying a large physical space and restricting the expansion of the screen size; on the other hand, the fixed installation method and rigid structure limit the viewing angle adjustment and immersive experience.

[0039] The prior art has also proposed combining an image source with an imaging module to achieve floating virtual image display (such as forming an aerial projection through optical reflection), but usually the entire image source and imaging module are integrated inside the headrest. Since multiple components are integrated into the headrest, the volume of the display device is large, and the positions of the image source and the imaging module are close to each other. Therefore, the adjustment of the virtual image position is limited, resulting in a small field of view for passengers and unable to meet the needs of different passengers. In addition, due to the limitation of the headrest area size and the closed space set within the headrest area, the image source and the imaging module not only occupy a large amount of space in the headrest area but also are not conducive to the heat dissipation of the image source and the imaging module, seriously affecting the riding comfort and the safety of the seat structure. Therefore, in the prior art, there is still a lack of a solution with flexible structure, space-saving, and capable of realizing large-size floating virtual image presentation.

[0040] In view of the problems of large volume, limited field of view, and insufficient immersion of existing in-vehicle virtual image display devices, the present invention proposes a split in-vehicle virtual image display system. By separately arranging the image generation unit (PGU) and the imaging module, which are located at the top of the vehicle interior and the front headrest area respectively, the structure is made lightweight, space is utilized efficiently, and a large-size, high-brightness floating virtual image is generated in the passenger's field of view.

[0041] The following provides a more detailed description of a split in-vehicle virtual image display system and a vehicle provided by the present invention.

[0042] A split in-vehicle virtual image display system proposed by the present invention includes an image generation unit and an imaging module that are disposed inside the vehicle and separately arranged.

[0043] The image generation unit is used to output the original image light; the imaging module is located on the optical path of the original image light and is used to form an enlarged virtual image at a target position inside the vehicle.

[0044] The image generation unit (PGU, Picture Generation Unit) disclosed in this embodiment can select image sources such as LCD, DLP, Micro-LED, OLED, or LCOS, and it can be installed on the vehicle ceiling or a concealed area near the top. For example, it can be installed in the roof area, or placed on the B-pillar of the vehicle (which is a vertical column connecting the roof and the chassis between the front and rear doors of the vehicle) or other areas. The imaging module is independently integrated above or inside the headrest, and its form can be any one of a reflector, a free-form reflector, a holographic optical element, or a meta-lens. By reasonably designing the optical path, the image output by the image generation unit can be modulated into an enlarged-size, controllable-viewing-angle virtual image in the air, suspended within the visible range of the rear passengers, without blocking the line of sight, and achieving the effect of an "invisible screen". It can be envisioned that the optical path between the image generation unit (PGU) and the imaging module is a single-reflection or compound-reflection structure.

[0045] In an embodiment, the image generation unit can be set in the roof area and the imaging module is placed in the headrest; or, the image generation unit is set in the B-pillar area of the vehicle and the imaging module is placed in the headrest, or both the image generation unit and the imaging module are placed at two different positions on the vehicle roof.

[0046] In an embodiment of the present invention, the image generation unit is placed on the roof of the vehicle, and the imaging element is placed above the head. To save vehicle interior space, both the image generation unit and the imaging module are provided with a rotation mechanism including manual or automatic rotation, and this rotation mechanism can fold and retract the image generation unit and the imaging module when not in use, and automatically hide them. This rotation structure can be realized by means of a roller blind covering.

[0047] Furthermore, the imaging module can be any one of a mirror, a free-form mirror, a holographic optical element, or a metalens. By reasonably designing the optical path, the image output by the PGU can be modulated into a virtual image in the air with an enlarged size and a controllable viewing angle, suspended within the visible range of the rear passengers, without blocking the line of sight, and achieving the effect of an "invisible screen". To present a better viewing effect, when the imaging module is a free-form mirror, an anti-glare and anti-fingerprint coating is provided on the free-form mirror.

[0048] Furthermore, in another implementation, the imaging module provided by the present invention includes a collimating lens group, a convex lens, a plane mirror, and a concave mirror arranged in sequence.

[0049] The collimating lens group collimates the received original image light into parallel light. First, the divergent light rays of the original image light emitted by the PGU are converted into parallel light to ensure uniform change of the light ray angle when the mirror rotates.

[0050] The convex lens is located on the optical path of the parallel light and is used to form a preliminary magnified virtual image. In a specific implementation, the convex lens can be used to adjust the pitch angle of the light rays in the vertical direction so that it forms a two-dimensional adjustment with the X-axis to accurately locate the virtual image space position.

[0051] The plane mirror is used to reflect the light output by the convex lens and move the preliminary magnified virtual image to the target height. The plane mirror reflects the optical path in the vertical direction and moves the virtual image position up to the line of sight height of the rear passengers. This height can also be adjusted according to the needs of the passengers.

[0052] The concave mirror is used to reflect the light beam output by the plane mirror and move the imaging position of the virtual image to the target position. This target position is the best position for the passengers to view the virtual image. For example, the virtual image can be adjusted to 30 cm in front of the seat where the passengers are located.

[0053] A concave mirror is an optical element with a concave reflecting surface. It can not only move the virtual image position to the target position, but also converge parallel light rays to the focus or make divergent light rays become parallel light. In addition, the degree of light convergence can be adjusted by the curvature to assist in optimizing the clarity and magnification of the virtual image.

[0054] After the concave mirror, an aspherical lens group is also provided. The aspherical lens group is used to perform final aberration correction on the light rays that have been reflected twice to ensure that the clarity of the virtual image edge is always maintained regardless of how the concave mirror pitches. In a real-time manner, the aspherical lens group can be composed of an aspherical convex lens and an achromatic lens to correct spherical aberration and chromatic aberration.

[0055] The system disclosed in this embodiment makes adaptive adjustments according to user needs to achieve a personalized display experience. For example, it automatically adjusts the display parameters of the image according to the identities of different passengers, the seat positions, and the playing content. The display parameters of the image include: virtual image brightness, resolution, color depth of the image, etc., so as to maximize the user experience and comfort.

[0056] Further, in order to enable passengers to adjust the imaging position of the virtual image, the imaging module is further connected with an angle adjustment unit; the angle adjustment unit includes: an X-axis rotating shaft, an X-axis bracket, a Y-axis rotating shaft, a Y-axis bracket, and a driving module.

[0057] The plane mirror is fixed on the X-axis rotating shaft through the X-axis bracket and rotates synchronously with the X-axis rotating shaft; the X-axis rotating shaft is used to adjust the position of the virtual image in the X-axis direction.

[0058] The concave mirror is fixed on the Y-axis rotating shaft through the Y-axis bracket and rotates synchronously with the Y-axis rotating shaft; the Y-axis rotation is used to adjust the position of the virtual image in the Y-axis direction.

[0059] The driving module includes: a micro stepping motor and an MCU; under the drive of the MCU, the micro stepping motor controls the rotation angles of the X-axis rotating shaft and the Y-axis rotating shaft. The driving module is used to achieve the rotation angles of the X-axis rotating shaft and the Y-axis rotating shaft.

[0060] In one implementation, the angle adjustment unit is used to adjust the imaging distance and the viewing angle range. The imaging distance is 0.2 to 15 meters, and the viewing angle range of the virtual image is set to 5° to 180°. This can ensure the visual comfort and viewing experience of the rear passengers. The design of the imaging distance and the viewing angle range is carefully adjusted to maximize the field of view and visual clarity of the rear passengers, while avoiding affecting the line of sight of the front passengers.

[0061] Further, in order to adjust the display parameters of the virtual image to output an image with appropriate brightness and high resolution, the imaging module further includes an image control module; the image control module includes: a main controller and an image signal processor connected by a differential serial bus.

[0062] The main controller can run image optimization algorithms, such as brightness adjustment algorithms, resolution adjustment algorithms, and distortion correction algorithms, to adjust the brightness, resolution, and pixel coordinates of the virtual image respectively to achieve the best display effect.

[0063] Furthermore, in order to achieve a better display effect, in a specific embodiment, the system can also be extended to functions such as eye tracking and content perception to further enhance the interactivity and user experience.

[0064] The following will, in conjunction with Figure 1 , Figure 2 and Figure 3 , provide a more detailed description of the specific application embodiments of the system of the present invention.

[0065] Embodiment 1

[0066] This embodiment provides a split-type in-vehicle virtual image display system. The specific structure includes an image generation unit (PGU) and an imaging module. The image generation unit and the imaging module are connected through an optical path and use optical adjustment to realize the display of virtual images.

[0067] As Figure 1 and Figure 2 shown, in this embodiment, the image generation unit (PGU) 101 is installed in the top area 110 of the vehicle, and its main function is to generate and output the original image. The image generation unit can select any one of display technologies such as LCD (Liquid Crystal Display), DLP (Digital Light Processor), Micro-LED (Micro Light Emitting Diode), OLED (Organic Light Emitting Diode), or LCOS (Liquid Crystal on Silicon). The specific selection depends on factors such as in-vehicle display requirements, display effects, and costs.

[0068] The output image of the image generation unit 101 is transmitted to the imaging module 103 through an optical path. The design requirements of the PGU can provide high-brightness and high-resolution images to ensure the clarity and detail display of the virtual image.

[0069] In this specific implementation, the imaging module 103 is arranged in the headrest area 107 of the front row seat 111, usually located above or in the inner area of the headrest. The main function of this imaging module 103 is to perform optical adjustment on the original image light output by the image generation unit 101, that is, to realize the optical path modulation of the image through any one of optical elements such as a mirror, a free-form mirror, a holographic optical element, or a metalens. Through reasonable optical design, the imaging module 103 ensures that the original image light output by the image generation unit 101 can form a magnified and clearly visible virtual image 109 in the air, and the position of the virtual image 109 floats within the field of view of the rear passenger 105, avoiding blocking the line of sight of the front passenger.

[0070] To further optimize the viewing experience, the imaging module 103 is also connected to an angle adjustment unit. This angle adjustment unit allows the user to dynamically adjust the display direction of the image according to their sitting posture or viewing angle preference. The design of this angle adjustment structure can be realized through physical adjustment, motor drive, or electric adjustment mechanism to ensure that each passenger can view the virtual image at the best angle. This function helps to improve the comfort of the passengers, especially during long rides, and can reduce neck and eye fatigue.

[0071] Furthermore, an image control module is provided within the system. This module is responsible for optimizing the image, specifically including functions such as brightness adjustment, resolution adjustment, and distortion correction. Through the image control module, the system can automatically adjust the brightness of the image according to different ambient light conditions to ensure high image clarity in different lighting environments. In addition, the image control module can also dynamically adjust the resolution of the virtual image to meet the requirements of different viewing distances and angles, ensuring that the visual effect of the virtual image always remains optimal.

[0072] Furthermore, in this embodiment, it is also possible to communicate with the vehicle-mounted main control system through the PGU. According to the identities of different passengers, seat positions, and playback content, the vehicle-mounted main control system can automatically adjust the display parameters of the image. The system makes adaptive adjustments according to user needs to achieve a personalized display experience, such as automatically adjusting the brightness, resolution, display content, etc. of the virtual image to maximize the user experience and comfort.

[0073] Embodiment 2

[0074] Combined Figure 3 and Figure 4 As shown, this embodiment provides a split-type vehicle-mounted virtual image display system, including an image generation unit (PGU) 201 and an imaging module 203. The image generation unit 201 and the imaging module 203 are connected by an optical path therebetween, and the display of the virtual image 209 is achieved by optical adjustment. The following is the specific implementation manner of this vehicle-mounted virtual image display system:

[0075] In this embodiment, the image generation unit (PGU) 201 is installed on the B-pillar 213 of the vehicle. The main function of this image generation unit is to generate and output the original image light. The PGU can select any one of display technologies such as LCD (Liquid Crystal Display), DLP (Digital Light Processor), Micro-LED (Micro Light Emitting Diode), OLED (Organic Light Emitting Diode), or LCOS (Liquid Crystal on Silicon), and the specific selection depends on factors such as vehicle-mounted display requirements, display effects, and costs. The original image light output by the PGU is transmitted to the imaging module 203 through the optical path. The design requirements of the PGU are to provide high-brightness and high-resolution images to ensure the clarity and detail display of the virtual image.

[0076] The imaging module 203 is arranged in the headrest area 207 of the front row seat 211. The main function of this imaging module is to perform optical adjustment on the image output by the PGU. Through reasonable optical design, the imaging module 203 ensures that the image output by the PGU can form a magnified and clearly visible virtual image in the air. The position of the virtual image 209 floats within the field of vision of the rear row passengers 205, avoiding blocking the line of sight of the front row passengers.

[0077] To further optimize the viewing experience, the imaging module is connected to an angle adjustment unit, allowing users to dynamically adjust the display direction of the image according to their sitting posture or viewing angle preference. The design of this angle adjustment structure can be achieved through physical adjustment, motor drive, or electric adjustment mechanisms, ensuring that each passenger can view the virtual image at the best angle. This function helps improve the comfort of passengers, especially during long rides, and can reduce neck and eye fatigue.

[0078] In this embodiment, the angle adjustment unit includes: an X-axis rotation axis, an X-axis bracket, a Y-axis rotation axis, a Y-axis bracket, and a drive module.

[0079] The plane mirror is fixed on the X-axis rotation axis through the X-axis bracket and rotates synchronously with the X-axis rotation axis; this X-axis rotation axis is used to adjust the position of the virtual image in the X-axis direction.

[0080] The concave mirror is fixed on the Y-axis rotation axis through the Y-axis bracket and rotates synchronously with the Y-axis rotation axis; the Y-axis rotation is used to adjust the position of the virtual image in the Y-axis direction.

[0081] The drive module includes: a micro stepping motor and an MCU; the micro stepping motor is driven by the MCU to control the rotation angles of the X-axis rotation axis and the Y-axis rotation axis. The drive module is used to achieve the rotation angles of the X-axis rotation axis and the Y-axis rotation axis.

[0082] Furthermore, in order to adjust the display parameters of the virtual image to output an image with appropriate brightness and high resolution, the imaging module further includes an image control module; the image control module includes: a main controller and an image signal processor connected by a differential serial bus.

[0083] The main controller can run image optimization algorithms, such as brightness adjustment algorithms, resolution adjustment algorithms, and distortion correction algorithms, to adjust the brightness, resolution, and pixel coordinates of the virtual image respectively to achieve the best display effect.

[0084] Embodiment 3

[0085] Combined with Figure 5 and Figure 6 As shown, this embodiment provides a vehicle-mounted virtual image display system, the specific structure of which includes a separately installed image generation unit 301 and an imaging module 303, which are connected by an optical path and use optical adjustment to achieve the display of the virtual image. In this embodiment, the image generation unit 301 is placed at the roof part 310, and the imaging module is also placed at the roof part. In a further embodiment, both the image generation unit 301 and the imaging module 303 include manual or automatic rotation mechanisms, which are folded up and automatically hidden when not in use.

[0086] In this embodiment, the imaging module 303 is disposed on the top of the vehicle and is not disposed in the headrest area 307 of the front row seat 311. Therefore, the defects of occupying a part of the headrest area 307 and having poor heat dissipation effect when the imaging module is disposed in the headrest area 307 are overcome. The main function of the imaging module is to optically adjust the image output by the PGU, and the optical path modulation of the image is achieved by any one of an optical element such as a mirror, a free-form mirror, a holographic optical element or a metalens. Through reasonable optical design, the imaging module 303 ensures that the image output by the PGU can form a virtual image with an enlarged size and clear visibility in the air, and the position of the virtual image 309 floats within the visual field range of the rear row passengers 305, avoiding blocking the line of sight of the front row passengers.

[0087] Similarly, in this embodiment, the imaging module may be provided with an angle adjustment unit, and the angle adjustment unit includes: an X-axis rotation axis, an X-axis bracket, a Y-axis rotation axis, a Y-axis bracket, and a drive module.

[0088] The plane mirror is fixed on the X-axis rotation axis through the X-axis bracket and rotates synchronously with the X-axis rotation axis; the X-axis rotation axis is used to adjust the virtual image position in the X-axis direction.

[0089] The concave mirror is fixed on the Y-axis rotation axis through the Y-axis bracket and rotates synchronously with the Y-axis rotation axis; the Y-axis rotation is used to adjust the virtual image position in the Y-axis direction.

[0090] The drive module includes: a micro stepping motor and an MCU. The micro stepping motor controls the rotation angles of the X-axis rotation axis and the Y-axis rotation axis under the drive of the MCU. The drive module is used to realize the rotation angles of the X-axis rotation axis and the Y-axis rotation axis.

[0091] Furthermore, in order to adjust the virtual image display parameters to output an image with appropriate brightness and high resolution, the imaging module further includes an image control module; the image control module includes: a main controller and an image signal processor connected by a differential serial bus.

[0092] The main controller can run image optimization algorithms, such as brightness adjustment algorithms, resolution adjustment algorithms, and distortion correction algorithms, to adjust the brightness, resolution, and pixel coordinates of the virtual image respectively to achieve the best display effect.

[0093] Based on the disclosure of the above-mentioned split-type in-vehicle virtual image display system, the present application also discloses a vehicle equipped with the split-type in-vehicle virtual image display system described in the present application. Since the virtual image display system is installed on this vehicle, passengers on the vehicle can view a virtual image floating in the air. Moreover, the image control module and display adjustment module designed on this system can enable passengers to view high-definition images at the best viewing angle, so a better viewing experience can be obtained.

[0094] The split-type in-vehicle virtual image display system and vehicle disclosed by the present invention, by designing the image generation unit and the imaging module separately, and using the images in the imaging module, not only improve the space utilization rate of in-vehicle display, but also take into account the simplicity of the structural design and the improvement of the display effect. Through the cooperation of the angle adjustment mechanism and the control unit, this system can achieve dynamic optimization of the virtual image and adapt to different user needs and in-vehicle environments. This in-vehicle virtual image display system has high intelligent and personalized functions and is suitable for the wide application of future in-vehicle entertainment and interaction technologies.

[0095] Those skilled in the art of this technology can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used here have the same meaning as the general understanding of those of ordinary skill in the art to which this application belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless specifically defined as here.

[0096] It should be understood that the sequence numbers and magnitudes of the steps in this embodiment do not mean the order of execution. The execution order of each process is determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiment of the present application.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A split-type vehicle-mounted virtual image display system, characterized in that: include: An image generation unit and an imaging module are disposed inside the vehicle and are separately disposed; The image generating unit is used to output original image light; The imaging module is located on the optical path of the original image light, and is used to form an enlarged virtual image of the original image light at a target position in the vehicle.

2. The split-type vehicle-mounted virtual image display system according to claim 1, characterized in that: The image generation unit is located in the roof area or on the B-pillar, and the imaging module is placed in or on the headrest.

3. The split-type vehicle-mounted virtual image display system according to claim 1, characterized in that: The image generating unit is a liquid crystal display, a digital light processor, a micro light emitting diode, an organic light emitting diode or a liquid crystal on silicon display.

4. The split-type vehicle-mounted virtual image display system according to claim 1, characterized in that: The imaging module is any one of a reflector, a free-form surface reflector, a holographic optical element or a super lens.

5. The split-type vehicle-mounted virtual image display system according to claim 1, characterized in that: The imaging module is a free-form surface reflector, and the free-form surface reflector is provided with an anti-glare and anti-fingerprint coating.

6. The split-type vehicle-mounted virtual image display system according to claim 1, characterized in that: The imaging module comprises: a collimating lens group, a convex lens, a plane reflector and a concave reflector arranged in sequence; The collimating lens group is used to collimate the original image light into parallel light; The convex lens is located on the optical path of the parallel light and is used to form a preliminary magnified virtual image; The plane reflector is used to reflect the light output by the convex lens and move the preliminary magnified virtual image to the target height; The concave reflector is used to reflect the light beam output by the plane reflector, so as to move the imaging position of the virtual image to the target position.

7. The split-type vehicle-mounted virtual image display system according to claim 6, characterized in that: The imaging module further comprises: an aspheric lens group consisting of an aspheric convex lens and an achromatic lens; The aspherical lens group is used to correct spherical aberration and chromatic aberration.

8. The split-type vehicle-mounted virtual image display system according to claim 7, characterized in that: The imaging module is also connected to an angle adjustment unit; The angle adjustment unit includes: an X-axis rotation axis, an X-axis bracket, a Y-axis rotation axis, a Y-axis bracket and a driving module; The plane reflector is fixed on the X-axis rotation axis through the X-axis bracket and rotates synchronously with the X-axis rotation axis; The concave reflecting mirror is fixed on the Y-axis rotating shaft through the Y-axis bracket and rotates synchronously with the Y-axis rotating shaft; The driving module comprises: a micro stepping motor and an MCU; the micro stepping motor, driven by the MCU, controls the rotation angles of the X-axis rotation axis and the Y-axis rotation axis.

9. The split-type vehicle-mounted virtual image display system according to claim 1, characterized in that: It also includes an image control module; the image control module includes: a main controller and an image signal processor connected by a differential serial bus.

10. A vehicle, characterized in that: include: A split-type vehicle-mounted virtual image display system as described in any one of claims 1 to 9.

Images