Split type vehicle-mounted virtual image display system and vehicle

Abstract

The utility model 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 disclosed by the utility model not only improves the space utilization rate of the vehicle-mounted display, but also considers the conciseness of the 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] The present application relates to the technical field of vehicle-mounted image display, in particular to a split type vehicle-mounted virtual image display system and a vehicle. BACKGROUND

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

[0003] The utility model patent with application number 202322535408.6 and the invention patent with application number 202311201722.9 propose a headrest integrated display device, in which an imaging module and an image source are used to cooperate to output a virtual image, thereby overcoming the problems of space occupation, limitation of screen size, and fixed installation method. However, the method used in the above-mentioned patents integrates the entire imaging module and image source inside the headrest, which occupies a large volume of the headrest, seriously affecting the comfort and safety of the seat structure. Therefore, there is still a lack of a solution that is flexible in structure, saves space, and can realize large-size virtual image presentation.

[0004] Therefore, the prior art still needs to be improved and enhanced. UTILITY MODEL CONTENT

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

[0006] The first aspect of the embodiment of the present application discloses a split type vehicle-mounted virtual image display system, which comprises an image generation unit and an imaging module arranged in the interior of a vehicle and split.

[0007] The image generation unit is configured to output an original image light.

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

[0009] Optionally, the image generation unit is located in the roof area or the B-pillar, and the imaging module is placed in 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 silicon-based liquid crystal display.

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

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

[0013] Optionally, the imaging module comprises, in sequence, a collimating lens group, a convex lens, a plane mirror, and a concave mirror.

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

[0015] The convex lens is located in the light path of the parallel light and is configured to form a preliminary magnified virtual image.

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

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

[0018] Optionally, the imaging module further comprises an aspheric lens group composed of an aspheric convex lens and an achromatic lens.

[0019] The aspheric lens group is configured to correct spherical aberration and chromatic aberration.

[0020] Optionally, the imaging module is further connected to an angle adjusting unit.

[0021] The angle adjusting unit comprises an X-axis rotating shaft, an X-axis support, a Y-axis rotating shaft, a Y-axis support, and a driving module.

[0022] The plane mirror is fixed to the X-axis rotating shaft by the X-axis support and rotates synchronously with the X-axis rotating shaft.

[0023] The concave mirror is fixed to the Y-axis rotating shaft by the Y-axis support and rotates synchronously with the Y-axis rotating shaft.

[0024] The driving module comprises a micro stepping motor and an MCU, and the micro stepping motor controls the rotation angles of the X-axis rotating shaft and the Y-axis rotating shaft under the driving of the MCU.

[0025] Optionally, the system further comprises an image control module, and the image control module comprises a main controller and an image signal processor connected by a differential serial bus.

[0026] In a second aspect, the application further provides a vehicle comprising the split-type vehicle-mounted virtual image display system.

[0027] Beneficial effects:

[0028] The utility model discloses a split type vehicle-mounted virtual image display system and vehicle, especially applicable to vehicle-mounted entertainment, information prompt and navigation and other functions. The system is through the image generation unit and imaging module separation arrangement, is installed in the car roof and headrest area respectively, realizes the efficient use of space, and generates the floating virtual image in the visual range of rear passenger. The utility model system not only improves the space utilization of vehicle-mounted display, also takes into account the simplicity of structural design and the promotion of display effect. Through the cooperation of angle adjusting unit and image control module, the system can realize the dynamic optimization of virtual image, and adapts to different user needs and vehicle-mounted environment. The vehicle-mounted virtual image display system has higher intelligentization and individualization function, and is applicable to the wide application of future vehicle-mounted entertainment and interactive technology. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiment of the present application, the drawings needed in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the premise of not being creative.

[0030] Figure 1 The optical path schematic diagram of the first embodiment of the split type vehicle-mounted virtual image display system provided by the present application is provided.

[0031] Figure 2 The structure schematic diagram of the first embodiment of the split type vehicle-mounted virtual image display system provided by the present application in specific application is provided.

[0032] Figure 3 The optical path schematic diagram of the second embodiment of the split type vehicle-mounted virtual image display system provided by the present application is provided.

[0033] Figure 4 The structure schematic diagram of the second embodiment of the split type vehicle-mounted virtual image display system provided by the present application in specific application is provided.

[0034] Figure 5 The optical path schematic diagram of the third embodiment of the split type vehicle-mounted virtual image display system provided by the present application is provided.

[0035] Figure 6 The structure schematic diagram of the third embodiment of the split type vehicle-mounted virtual image display system provided by the present application in specific application is provided. DETAILED DESCRIPTION

[0036] The application provides a split type vehicle-mounted virtual image display system and a vehicle. To make the purpose, technical solutions and effects of the application clearer and more explicit, the application is further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and not to limit the application.

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

[0038] In a vehicle-mounted scenario, a rear-row entertainment seat display screen is usually installed in the back of a front-row seat or a folding structure on the roof. Such a display screen is designed for rear-row passengers and supports independent video and audio playback, game entertainment and other functions. Although such a display screen meets the independent control of the display playback by passengers, such a display device has obvious limitations: on the one hand, it is an opaque structure that occupies a large physical space, limiting the expansion of the screen size; on the other hand, the fixed installation method and rigid structure limit the adjustment of the viewing angle and the immersive experience.

[0039] In the prior art, there is also a solution that combines an image source with an imaging module to realize floating virtual image display (such as air projection formed by optical reflection), but the entire image source and imaging module are usually integrated in the headrest. Since multiple elements are integrated into the headrest, the display device is bulky, and the positions of the image source and the imaging module are close, so the virtual image position adjustment is limited, resulting in a small field of view for passengers and not being able to adapt to the needs of different passengers. In addition, due to the size limitation of the headrest area and the closed space provided in 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 heat dissipation of the image source and the imaging module, which seriously affects the ride comfort and the safety of the seat structure. Therefore, in the prior art, there is still a lack of a solution that is flexible in structure, saves space and can realize large-size floating virtual image presentation.

[0040] In view of the problems of large size, limited field of view and insufficient immersion of the existing vehicle-mounted virtual image display device, the utility model provides a split type vehicle-mounted virtual image display system, which separates the image generation unit (PGU) and the imaging module and arranges them at the top of the vehicle and the headrest area of the front row respectively, realizes lightweight structure and efficient use of space, and generates a large-size and high-brightness floating virtual image in the field of view of the passenger.

[0041] The utility model provides a split type vehicle-mounted virtual image display system and a vehicle will be described in more detail.

[0042] The utility model provides a split type vehicle-mounted virtual image display system, which comprises an image generation unit and an imaging module arranged in the vehicle interior.

[0043] The image generation unit is used for outputting original image light, and the imaging module is located on the light path of the original image light and is used for forming an enlarged virtual image at a target position in the vehicle interior.

[0044] The image generation unit (PGU, Picture Generation Unit) disclosed in the embodiment can select an image source such as LCD, DLP, Micro-LED, OLED or LCOS, which can be installed on the vehicle interior roof or a concealed area close to the top. For example, it can be installed in the roof area, or placed in the B column (located between the front and rear doors of the vehicle, which is a vertical column connecting the roof and the chassis) or other areas. The imaging module is independently integrated above or in the headrest, which can be any one of a mirror, a free-form mirror, a holographic optical element or a superlens. By reasonably designing the light path, the image output by the image generation unit can be modulated into an aerial virtual image with controllable size and angle of view, which is suspended in the visual range of the rear passengers and does not block the line of sight, and realizes the effect of "invisible screen". It can be conceived that the light path between the image generation unit (PGU) and the imaging module is a single reflection or a compound reflection structure.

[0045] In the embodiment, the image generation unit can be arranged in the roof area, and the imaging module is placed in the headrest. Alternatively, the image generation unit is arranged in the B column 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 in two different positions on the roof.

[0046] In an embodiment of the utility model, the image generation unit is placed at the top of the vehicle, and the imaging element is placed on the top of the head. In order to save the space in the vehicle, the image generation unit and the imaging module are both provided with a rotating mechanism containing manual or automatic, which can realize the folding and hiding of the image generation unit and the imaging module when not in use. The rotating structure can be realized by the way of roller shutter covering.

[0047] Further, the imaging module can be any one of a mirror, a free-form surface mirror, a holographic optical element or a superlens. By reasonably designing the optical path, the image modulated by the PGU can be magnified in size and the viewing angle can be controlled to form an aerial virtual image suspended in the visual range of the rear passengers, without blocking the line of sight and achieving the effect of an "invisible screen". In order to achieve a better viewing effect, when the imaging module is a free-form surface mirror, an anti-glare and anti-fingerprint coating is arranged on the free-form surface mirror.

[0048] Further, in another implementation manner, the imaging module provided by the utility model comprises 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 to parallel light. The divergent light rays of the original image light emitted by the PGU are converted into parallel light, so that the angle of the light rays changes uniformly when the mirror rotates.

[0050] The convex lens is located on the light path of the parallel light and is used for forming a preliminary magnified virtual image. In a specific implementation, the pitch angle of the light rays in the vertical direction can be adjusted by using the convex lens, so that the pitch angle and the X-axis form two-dimensional adjustment, and the position of the virtual image space is accurately positioned.

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

[0052] The concave mirror is used for reflecting the light beam output by the plane mirror to move the imaging position of the virtual image to a target position. The target position is the best position for the passengers to watch the virtual image, for example, the virtual image can be adjusted to 30cm in front of the seat of the passengers.

[0053] The concave mirror is an optical element with a concave reflecting surface, which can not only move the position of the virtual image to the target position, but also converge the parallel light rays to the focal point or change the divergent light rays into parallel light. In addition, the convergence degree of the light rays can be adjusted by the curvature to assist in optimizing the definition and magnification of the virtual image.

[0054] After the concave mirror, a non-spherical lens group is further arranged. The non-spherical lens group is used for finally correcting the aberration of the light rays after two reflections, so that the definition of the edge of the virtual image is always kept regardless of the pitch of the concave mirror. In one implementation manner, the non-spherical lens group can be composed of a non-spherical convex lens and an achromatic lens to correct spherical aberration and chromatic aberration.

[0055] The system disclosed in the embodiment can be self-adapted according to the user's demand, and realize the individualized display experience, for example, the display parameters of the image can be automatically adjusted according to the identity, seat position and playing content of different passengers. The display parameters of the image include the virtual image brightness, resolution, color depth of the image, etc., so as to maximize the user experience and comfort.

[0056] Further, in order to realize that the passenger can adjust the imaging position of the virtual image, the imaging module is further connected with an angle adjusting unit; the angle adjusting unit includes an X-axis rotating shaft, an X-axis support, a Y-axis rotating shaft, a Y-axis support and a driving module.

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

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

[0059] The driving module includes a micro stepping motor and an MCU; the micro stepping motor is driven by the MCU to control the rotating angle of the X-axis rotating shaft and the Y-axis rotating shaft. The driving module is used to realize the rotating angle of the X-axis rotating shaft and the Y-axis rotating shaft.

[0060] In an implementation manner, the imaging distance and the visual angle range are adjusted by the angle adjusting unit. The imaging distance is 0.2-15 meters, and the visual angle range of the virtual image is set to 5°-180°, so that the visual comfort and viewing experience of the passengers in the rear row can be ensured. The imaging distance and the visual angle range are carefully adjusted, aiming to maximize the visual range and visual clarity of the passengers in the rear row, while avoiding affecting the visual line of the passengers in the front row.

[0061] Further, in order to realize the adjustment of the display parameters of the virtual image to output the 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 algorithm, resolution adjustment algorithm and distortion correction algorithm, to respectively adjust the brightness, resolution and pixel coordinates of the virtual image, so as to realize the best display effect.

[0063] Further, in order to realize better display effect, in specific embodiments, the system can also be extended to eye movement tracking, content perception and other functions to further enhance the interactivity and user experience.

[0064] The system will be described in more detail below with reference to the specific application examples of the utility model. Figure 1 、 Figure 2 and Figure 3 , the utility model system specific application examples are described in more detail.

[0065] Embodiment 1

[0066] The embodiment provides a split type vehicle-mounted virtual image display system, and 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 the display of the virtual image is realized by optical adjustment.

[0067] As Figure 1 and Figure 2 shown, in the embodiment, the image generation unit (PGU) 101 is installed on the top area 110 of the vehicle, and the main function is to generate and output the original image. The image generation unit can select any one of the 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 (silicon-based liquid crystal display). The specific selection is determined according to the factors such as vehicle-mounted display demand, display effect and cost.

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

[0069] In the specific implementation, the imaging module 103 is arranged in the headrest area 107 of the front seat 111, and is usually located above or in the internal area of the headrest. The main function of the imaging module 103 is to optically adjust the original image light output by the image generation unit 101, that is, to realize the optical path modulation of the image by any one of the optical elements such as mirror, free-form mirror, holographic optical element or super lens. The imaging module 103 is optically designed to ensure that the original image light output by the image generation unit 101 can form a virtual image 109 with enlarged size and clear visibility in the air, and the position of the virtual image 109 is suspended in the visual range of the rear passengers 105, avoiding blocking the view of the front passengers.

[0070] In order to further optimize the viewing experience, the imaging module 103 is also connected to an angle adjusting unit. The angle adjusting unit allows users to dynamically adjust the display direction of the image according to their own sitting posture or viewing angle preference. The design of this angle adjusting structure can be realized by physical adjustment, motor drive or electric adjustment mechanism, to ensure that each passenger can watch the virtual image at the best angle. This function helps to improve the comfort of passengers, especially in the process of long time riding, which can reduce the fatigue of neck and eyes.

[0071] Further, the system is provided with an image control module, which is responsible for optimizing the image, 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 environmental lighting conditions to ensure that the image clarity remains high under different lighting environments. In addition, the image control module can also dynamically adjust the resolution of the virtual image to adapt to different viewing distances and angles, ensuring that the visual effect of the virtual image always remains optimal.

[0072] Further, in this embodiment, the PGU can also be in communication with the vehicle control system, which can automatically adjust the display parameters of the image according to the identity, seat position, and playback content of different passengers. The system adapts to user needs and provides personalized display experience, such as automatically adjusting the brightness, resolution, and display content of the virtual image, to maximize user experience and comfort.

[0073] Embodiment 2

[0074] In combination Figure 3 and Figure 4 As shown in FIGS. 1-2, the present embodiment provides a split-type vehicle virtual image display system, which includes an image generation unit (PGU) 201 and an imaging module 203. The image generation unit 201 and the imaging module 203 are connected through an optical path and utilize optical adjustment to display a virtual image 209. The following is a specific implementation of the vehicle 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 the image generation unit is to generate and output original image light. The PGU can select any one of the 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 (Silicon-based Liquid Crystal Display), etc. The specific selection is determined by factors such as vehicle display requirements, display effect, and cost. The original image light output by the PGU is transmitted to the imaging module 203 through the optical path. The design of the PGU requires that it can provide high brightness and high resolution images to ensure the clarity and detail of the virtual image.

[0076] The imaging module 203 is arranged in the headrest area 207 of the front seat 211. The main function of the imaging module is to optically adjust 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 virtual image that is enlarged in size and clear to see in the air. The position of the virtual image 209 is suspended within the field of view of the rear passengers 205, avoiding blocking the view of the front 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 own sitting posture or viewing angle preferences. The design of this angle adjustment structure can be achieved through physical adjustment, motor-driven or electric adjustment mechanism, ensuring that each passenger can watch the virtual image at the best angle. This function helps to improve the comfort of passengers, especially during long rides, reducing neck and eye fatigue.

[0078] In this embodiment, the angle adjustment unit includes an X-axis rotating shaft, an X-axis support, a Y-axis rotating shaft, a Y-axis support, and a driving module.

[0079] The plane mirror is fixed on the X-axis rotating shaft through the X-axis support 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.

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

[0081] The driving module includes a micro stepping motor and an MCU; the micro stepping motor is driven by the MCU to control the rotation angle of the X-axis rotating shaft and the Y-axis rotating shaft. The driving module is used to realize the rotation angle of the X-axis rotating shaft and the Y-axis rotating shaft.

[0082] Further, in order to realize the adjustment of the virtual image display parameters, so as to output images 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 algorithm, resolution adjustment algorithm and distortion correction algorithm, to adjust the brightness, resolution and pixel coordinates of the virtual image respectively, to achieve the best display effect.

[0084] Embodiment 3

[0085] Combined Figure 5 and Figure 6 As shown in the figure, the embodiment provides a vehicle-mounted virtual image display system, and the specific structure includes a split type installed image generation unit 301 and an imaging module 303, which are connected through an optical path and realize the display of virtual image by optical adjustment. In this embodiment, the image generation unit 301 is placed at the top part 310 of the vehicle, and the imaging module is also placed at the top part of the vehicle. In further embodiments, the image generation unit 301 and the imaging module 303 both contain manual or automatic rotating mechanisms, which are folded and hidden automatically when not in use.

[0086] In this embodiment, the imaging module 303 is arranged on the top of the vehicle and is not arranged in the headrest area 307 of the front row seats 311, thus overcoming the defects of occupying part of the headrest area 307 and poor heat dissipation when the imaging module is arranged in the headrest area 307. 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 realized by any one of the optical elements such as a mirror, a free-form mirror, a holographic optical element or a superlens. Through reasonable optical design, the imaging module 303 ensures that the image output by the PGU can form a virtual image with enlarged size and clear visibility in the air, and the position of the virtual image 309 is suspended in the field of view of the rear passengers 305, avoiding blocking the view of the front passengers.

[0087] Similarly, in this embodiment, the imaging module can be provided with an angle adjusting unit, which includes an X-axis rotating shaft, an X-axis support, a Y-axis rotating shaft, a Y-axis support and a driving module.

[0088] The plane mirror is fixed on the X-axis rotating shaft through the X-axis support 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.

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

[0090] The driving module includes a micro stepping motor and an MCU. The micro stepping motor controls the rotation angle of the X-axis rotating shaft and the Y-axis rotating shaft under the driving of the MCU. The driving module is used to realize the rotation angle of the X-axis rotating shaft and the Y-axis rotating shaft.

[0091] Further, in order to realize the adjustment of 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 algorithm, resolution adjustment algorithm and distortion correction algorithm to adjust the brightness, resolution and pixel coordinates of the virtual image respectively to achieve the best display effect.

[0093] On the basis of the above-mentioned split type vehicle-mounted virtual image display system, the application further discloses a vehicle provided with the split type vehicle-mounted virtual image display system.

[0094] The split type vehicle-mounted virtual image display system and the vehicle disclosed by the application have the advantages that the image generating unit and the imaging module are designed in a split type, and the image in the imaging module not only improves the space utilization rate of the vehicle-mounted display, but also takes into account the simplicity of the structural design and the improvement of the display effect.

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

[0096] It should be understood that the sequence numbers and sizes of the steps in the embodiments do not mean the order of execution, and the execution order of the processes is determined by the functions and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the application.

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

Claims

1. A split-type vehicle-mounted virtual image display system characterized by comprising: The system comprises: an image generating unit and an imaging module arranged separately inside the vehicle; the image generating unit is configured to output original image light; the imaging module is located on the light path of the original image light and configured to form an enlarged virtual image at a target position in the vehicle.

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

3. The split car-mounted virtual image display system according to claim 1, characterized by, 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 silicon-based liquid crystal display.

4. The split car-mounted virtual image display system according to claim 1, characterized by, The imaging module is any one of a mirror, a free-form mirror, a holographic optical element, or a superlens.

5. The split car-mounted virtual image display system according to claim 1, characterized by, The imaging module is a free-form mirror, and the free-form mirror is provided with an anti-glare and anti-fingerprint coating.

6. The split car-mounted virtual image display system according to claim 1, characterized by, The imaging module comprises a collimating lens group, a convex lens, a plane mirror, and a concave mirror arranged in sequence. The collimating lens group is configured to collimate the original image light into parallel light. The convex lens is located on the light path of the parallel light and configured to form a preliminary enlarged virtual image. The plane mirror is configured to reflect the light output by the convex lens to move the preliminary enlarged virtual image to a target height. The concave mirror is configured to reflect the light beam output by the plane mirror to move the imaging position of the virtual image to a target position.

7. The split vehicle-mounted virtual image display system of claim 6, wherein, The imaging module further comprises an aspherical convex lens and an achromatic lens to form an aspherical lens group. The aspherical lens group is configured to correct spherical aberration and chromatic aberration.

8. The split car-mounted virtual image display system according to claim 7, characterized by, The imaging module is further connected to an angle adjusting unit. The angle adjusting unit comprises an X-axis rotating shaft, an X-axis support, a Y-axis rotating shaft, a Y-axis support, and a driving module. The plane mirror is fixed on the X-axis rotating shaft through the X-axis support and rotates synchronously with the X-axis rotating shaft. The concave mirror is fixed on the Y-axis rotating shaft through the Y-axis support and rotates synchronously with the Y-axis rotating shaft. The driving module comprises a micro stepping motor and an MCU. The micro stepping motor is driven by the MCU to control the rotation angle of the X-axis rotating shaft and the Y-axis rotating shaft.

9. The split car-mounted virtual image display system according to claim 1, characterized by, The system further comprises an image control module, which comprises a main controller and an image signal processor connected by a differential serial bus.

10. A vehicle characterized by comprising: The system comprises: The split-type virtual image display system for vehicles according to any one of claims 1-9.

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