Vehicle-mounted display system and vehicle

Abstract

The application discloses a vehicle display system and a vehicle. The vehicle display system comprises a first image source, a second image source, an imaging element and a light-transmitting mirror. The imaging element is configured to generate a first real image according to a light beam emitted by the first image source and generate a second real image according to a light beam emitted by the second image source. The light-transmitting mirror is configured to reflect the second real image to form a virtual image. In this way, the first real image and the second real image are generated by the imaging element, and the second real image is reflected by the light-transmitting mirror to form a virtual image, so that the two imaging effects of real image display and virtual image display can be presented simultaneously in the vehicle, the driving information display is greatly enriched, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to an in-vehicle display system and a vehicle. Background Technology

[0002] Currently, most in-vehicle display systems use displays to directly output information or combine the driver's seat with the windshield to achieve a head-up display (HUD). The information they carry is limited in scope and cannot meet the needs of drivers and passengers for multi-dimensional information acquisition, perception, and diversified interaction in in-vehicle scenarios. Summary of the Invention

[0003] This application provides an in-vehicle display system and a vehicle.

[0004] This application provides an in-vehicle display system, including an imaging element and a light-transmitting reflector. The imaging element is configured to generate a first real image and a second real image, and the light-transmitting reflector is configured to reflect the second real image to form a virtual image.

[0005] Thus, in this embodiment of the application, a first real image and a second real image are generated simultaneously by the imaging element, and the second real image is reflected by the light-transmitting reflector to form a virtual image. This allows for the simultaneous presentation of both real and virtual image display effects inside the vehicle, achieving layered display of real and virtual images. This enriches the imaging dimensions and spatial hierarchy of the vehicle display, and enhances the information perception experience and safety of drivers and passengers.

[0006] In some embodiments of this application, the vehicle display system further includes: A first image source is used to illuminate the imaging element so that the imaging element generates the first real image; A second image source is used to illuminate the imaging element so that the imaging element generates the second real image.

[0007] Thus, in this embodiment of the application, by setting up a first image source and a second image source to respectively illuminate the imaging element to generate a first real image and a second real image, the independent control and output of the two images can be realized, so that different imaging content, display parameters and information types can be controlled separately without interference, thereby improving the control flexibility and imaging stability of the display system, and at the same time facilitating differentiated configuration of the two images according to the actual needs of the vehicle scenario.

[0008] In some embodiments of this application, the first image source and the second image source are disposed on the same side of the imaging element.

[0009] Thus, in this embodiment of the application, placing the first image source and the second image source on the same side of the imaging element makes the overall optical path layout more concentrated and compact, effectively reducing the overall size and installation space occupied by the vehicle display system, which is conducive to realizing the miniaturization and integration design of the device.

[0010] In some embodiments of this application, the first image source forms a first projection area on the imaging element, and the second image source forms a second projection area on the imaging element; The first projection area and the second projection area at least partially overlap on the imaging element, and the overlapping area is located in the middle region of the imaging element.

[0011] Thus, in this embodiment, the first projection area and the second projection area at least partially overlap on the imaging element, and the overlapping area is located in the middle area of ​​the imaging element, which can make full use of the effective imaging area of ​​the imaging element, improve the space utilization of the optical element, and avoid the problem of increased volume caused by the dispersion of the imaging area.

[0012] In some embodiments of this application, the angle between the first image source and the imaging element is α, where 0° < α < 90°; and the angle between the second image source and the imaging element is β, where 0° < β < 90°.

[0013] Thus, in the embodiments of this application, the incident angle and projection direction of the two images can be flexibly adjusted, and the optical path space can be reasonably allocated, which is conducive to realizing the compact layout of the vehicle display system.

[0014] In some embodiments of this application, the angle α between the first image source and the imaging element is 45°, and / or the angle β between the second image source and the imaging element is 45°.

[0015] Thus, in this embodiment of the application, setting the angle α between the first image source and the imaging element, and / or the angle β between the second image source and the imaging element to 45° enables the two image sources to illuminate the imaging element at the optimal incident angle, facilitating a reasonable layout of the incident light path and the reflected light path; at the same time, it ensures that the propagation path of the imaging light is more regular.

[0016] In some embodiments of this application, the first real image is mirror-symmetric to the first image source with respect to the imaging element, and the second real image is mirror-symmetric to the second image source with respect to the imaging element.

[0017] Thus, in this embodiment, by making the first real image and the first image source, and the second real image and the second image source mirror-symmetric about the imaging element, the propagation law of the optical path can be clearly controlled, which facilitates the precise planning and stable output of the imaging position, size and imaging effect of the real image, and reduces the difficulty of optical path design and debugging.

[0018] In some embodiments of this application, a first reflector is further included: a first reflector disposed between the first image source and the imaging element, the first reflector being used to fold the optical path of the first image source.

[0019] Thus, in this embodiment of the application, by adding a first reflector between the first image source and the imaging element, the optical path of the first image source is folded, which can effectively shorten the straight-line propagation distance of the optical path, significantly reduce the structural size of the display module in a single direction, further optimize the spatial layout of the vehicle display system, and realize the miniaturization and compact design of the device.

[0020] In some embodiments of this application, a second reflector is further included: a second reflector disposed between the second image source and the imaging element, the second reflector being used to fold the optical path of the second image source.

[0021] Thus, in this embodiment of the application, by setting a second reflector between the second image source and the imaging element to fold the optical path of the second image source, the straight length of the optical path can be further compressed, reducing the overall volume and installation space occupied by the display module, thereby achieving a more compact and miniaturized structural design for the vehicle display system.

[0022] In some embodiments of this application, the first image source and the second image source are one of an LCD display screen, an OLED display screen, a MiniLED display screen, a MicroLED display screen, a QLED display screen, and a DLP projection display device.

[0023] Thus, in this embodiment, the range of image sources can be broadened, the versatility and adaptability of the vehicle display system can be improved, and it can be flexibly configured according to the display effect and actual vehicle scenario requirements, which is conducive to meeting display requirements of different levels and specifications.

[0024] In some embodiments of this application, the first real image is located in the near-field display area of ​​the vehicle display system, and the virtual image is located in the far-field display area of ​​the vehicle display system, wherein the near-field display area and the far-field display area are located on the same side of the imaging element.

[0025] Thus, in this embodiment, the first real image is arranged in the near-field display area and the virtual image is arranged in the far-field display area, and the near-field display area and the far-field display area are on the same side of the imaging element. This enables the near-field information and far-field information to be presented in a layered manner on the same side, which makes it convenient for drivers and passengers to obtain display information at different distances in the same observation direction and improves driving safety.

[0026] In some embodiments of this application, the position of the first real image in the vehicle height direction is lower than the reflection area of ​​the second real image on the light-transmitting mirror.

[0027] Thus, in this embodiment, by setting the position of the first real image in the vehicle height direction to be lower than the reflection area of ​​the second real image on the light-transmitting mirror, the near-field real image and the far-field virtual image can be reasonably spaced apart in the height direction, effectively avoiding mutual occlusion and interference between the two imaging optical paths during propagation and observation, ensuring that both near-field and far-field display information can be presented clearly and completely; at the same time, the matching degree between the human eye's observation angle and the display area is optimized.

[0028] In some embodiments of this application, the first real image is used to display vehicle status information, and the virtual image is used to display navigation information.

[0029] Thus, in this embodiment, the first real image is used to display vehicle status information and the virtual image is used to display navigation information. This allows for layered display of near-field and far-field information based on the importance of the information and observation habits: vehicle status information is presented as a near-field real image, which is convenient for the driver to view quickly and intuitively; navigation information is presented as a far-field virtual image, which is convenient for the driver to perceive from a distance without frequently adjusting their line of sight.

[0030] In some embodiments of this application, the imaging element is a matrix waveguide imaging element.

[0031] Thus, in this embodiment of the application, by employing a matrix optical waveguide imaging element, the uniformity of imaging can be improved by utilizing the light transmission and imaging characteristics of the optical waveguide itself; at the same time, the matrix optical waveguide can effectively compress the volume of the optical system, making the structure of the vehicle display system compact.

[0032] In some embodiments of this application, the imaging element is one of a dihedral reflector, a top reflector, a cross mirror reflector, a freeform surface mirror, and an orthogonal cemented micromirror.

[0033] Thus, in this embodiment, the reflective structure can be flexibly selected according to the optical path requirements of the vehicle display, thereby improving the optical performance and imaging stability of the display system; at the same time, it can adapt to different spatial layouts and optical path design requirements, enhancing the structural adaptability of the vehicle display system.

[0034] In some embodiments of this application, the matrix waveguide imaging element includes a first micromirror array and a second micromirror array, and the reflecting surfaces of the first micromirror array and the second micromirror array are orthogonal.

[0035] Thus, in this embodiment, the orthogonal reflection structure enables directional reflection and precise transmission of imaging light, effectively ensuring the stability and directionality of the imaging optical path, reducing light scattering and crosstalk, and improving imaging clarity and uniformity. At the same time, it enables independent control and orderly propagation of the two image optical paths, providing a reliable optical basis for the layered display of real and virtual images.

[0036] In some embodiments of this application, the matrix waveguide imaging element further includes a first transparent plate and a second transparent plate, with the first micromirror array and the second micromirror array disposed between the first transparent plate and the second transparent plate.

[0037] Thus, in this embodiment of the application, by setting a first transparent plate and a second transparent plate in the matrix waveguide imaging element, a stable structural support and installation reference can be provided for the first micromirror array and the second micromirror array, ensuring the positional accuracy and relative orthogonality of the mirror array, and improving the reliability and stability of the overall structure.

[0038] In some embodiments of this application, the light-transmitting reflector is the windshield of a vehicle.

[0039] Thus, in this embodiment, the light-transmitting reflector is directly adopted from the vehicle's windshield, which eliminates the need for additional independent reflective lenses and greatly simplifies the overall structure of the vehicle display system. At the same time, it can directly utilize the windshield to form a far-field virtual image, allowing navigation and other information to be projected far in front of the driver without the need for additional optical reflective components, thereby improving space utilization.

[0040] In some embodiments of this application, the windshield is laminated glass or laminated glass containing a wedge-shaped film.

[0041] Thus, in the embodiments of this application, using laminated glass or laminated glass with a wedge-shaped film as the windshield of a vehicle can not only meet the safety strength and structural reliability requirements of vehicle glass, but also effectively optimize the virtual image imaging optical path through the wedge-shaped film structure, thereby improving the display effect of the far-field virtual image.

[0042] In some embodiments of this application, it further includes: at least one curved mirror disposed in the optical path from the second real image to the light-transmitting mirror, the curved mirror being used to perform aberration correction on the second real image.

[0043] Thus, in this embodiment of the application, by setting at least one curved mirror in the optical path from the second real image to the light-transmitting mirror to perform aberration correction on the second real image, the aberration of the virtual image can be effectively pre-corrected, and the imaging effect of the far-field virtual image can be significantly improved.

[0044] In some embodiments of this application, the in-vehicle display system further includes: An interaction module is used to sense user interaction operations on the first real image and / or the virtual image.

[0045] Thus, in this embodiment of the application, by setting an interactive module in the vehicle display system, the user's interactive operations such as touch, gesture or voice on the first real image and virtual image can be perceived in real time, realizing interactive control of near-field vehicle status information and far-field navigation information, improving the convenience and intuitiveness of the driver's operation; at the same time, the driver does not need to operate physical buttons, reducing the shift of eyes and distraction of operation during driving.

[0046] In some embodiments of this application, the interaction module is a gesture recognition module, and the interaction operation includes at least one of clicking, dragging, or zooming.

[0047] Thus, in this embodiment, the driver can intuitively control the near-field real image and the far-field virtual image in a non-contact manner while driving, without touching the screen or physical buttons, reducing the complexity of operation; at the same time, it can improve the smoothness and accuracy of interaction, and reduce the safety hazards caused by eye shift and manual operation.

[0048] This application provides a vehicle that includes the above-described in-vehicle display system.

[0049] Thus, thanks to the aforementioned in-vehicle display system, clear layered display of near-field real images and far-field virtual images can be achieved. While ensuring high imaging quality and a compact structure, it improves the driver's information reading efficiency and ease of operation, effectively reduces eye movement and operational distraction, and significantly enhances driving safety.

[0050] In some embodiments of this application, the in-vehicle display system is embedded in the dashboard of the vehicle.

[0051] Thus, in this embodiment of the application, embedding the vehicle display system into the vehicle's dashboard can make full use of the original installation space inside the vehicle, making the overall layout more neat and beautiful, without taking up extra space inside the vehicle; at the same time, it is beneficial to protect the display system, improve structural stability and reliability, and reduce the impact of driving vibration on optical imaging.

[0052] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0053] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein: Figure 1This is a schematic diagram of the structure of the vehicle display system in some embodiments of this application; Figure 2 This is a schematic diagram of the structure of the vehicle display system in some embodiments of this application; Figure 3 This is a schematic diagram illustrating application scenarios in some embodiments of this application; Figure 4 This is a schematic diagram of the structure of the vehicle display system in some embodiments of this application; Figure 5 This is a schematic diagram illustrating the application scenario of the in-vehicle display system in some embodiments of this application; Figure 6 This is a schematic diagram of the structure of the vehicle display system in some embodiments of this application; Figure 7 This is a schematic diagram illustrating the application scenario of the in-vehicle display system in some embodiments of this application; Figure 8 This is a schematic diagram illustrating an application scenario of an in-vehicle display system in certain embodiments of this application; Figure 9 This is a schematic diagram illustrating an application scenario of an in-vehicle display system in certain embodiments of this application; Figure 10 This is a schematic diagram illustrating an application scenario of an in-vehicle display system in certain embodiments of this application; Figure 11 This is a schematic diagram illustrating the application scenarios of the imaging element in some embodiments of this application; Figure 12 This is an exploded view of the imaging element in some embodiments of this application; Figure 13 This is a schematic diagram illustrating the application scenarios of the imaging element in some embodiments of this application; Figure 14 This is a schematic diagram of the structure of an in-vehicle display system in some embodiments of this application; Figure 15 This is a schematic diagram illustrating an application scenario of an in-vehicle display system in certain embodiments of this application.

[0054] Label Explanation 1000 - Vehicle; 100 - Vehicle display system; 101 - Imaging element; 1011 - First micromirror array; 1012 - Second micromirror array; 1013 - First transparent plate; 1014 - Second transparent plate; 102 - Transparent mirror; 103 - First image source; 104 - Second image source; 105 - First mirror; 106 - Second mirror; 107 - Curved mirror; A'-first real image, B'-second real image, B''-virtual image. Detailed Implementation

[0055] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0056] The in-vehicle display system is the core carrier for information interaction between the vehicle and the driver and passengers. It can present multi-source information such as vehicle operating status, driving data, navigation route, driving assistance prompts, multimedia information and vehicle networking services to the driver and passengers in a visual and intuitive way in real time. It is used to help the driver perceive the vehicle's operating condition, judge the road environment, plan the driving route, and improve the safety, convenience and interactive experience of the driving process.

[0057] With the development of intelligent connected vehicles and advanced autonomous driving technology, in-vehicle display systems also play an important role in improving driving safety, reducing the frequency of eye movement, and enhancing the smoothness of human-vehicle interaction. They are key components for ensuring driving safety and realizing intelligent human-vehicle interaction.

[0058] In related technologies, vehicle display systems mainly employ two types of solutions: direct display on in-vehicle displays and head-up displays (HUDs) on the windshield. Conventional in-vehicle displays present information as a real image, with a fixed imaging position and close proximity to the viewer's eyes. Traditional HUD systems, on the other hand, project a virtual image onto the windshield, achieving far-field imaging. The image observed by the human eye is only a single real or virtual image, with relatively fixed imaging positions and distances, a limited imaging format, and relatively limited information presentation dimensions and visual levels. This makes it difficult to meet the demand for simultaneous and efficient display of information from multiple sources, at multiple distances, and in multiple scenarios.

[0059] Based on the issues mentioned above, please refer to Figure 1 This application provides an in-vehicle display system 100, which includes an imaging element 101 and a light-transmitting reflector 102. The imaging element 101 is configured to generate a first real image A' and a second real image B', and the light-transmitting reflector 102 is configured to reflect the second real image B' to form a virtual image B''.

[0060] It is worth noting that a real image is a real image formed by the actual convergence of light rays, while a virtual image is a non-real convergence image formed by optical reflection, refraction, and other means. The light rays do not actually converge at the imaging position; it is only a visual perception effect of the human eye and can achieve long-distance, large-size imaging.

[0061] Please see Figures 1-3Specifically, the in-vehicle display system 100 can be located in front of the driver's seat of the vehicle 1000 and can be embedded in the driver's dashboard, or replace the existing dashboard or center console, so that the system has a higher degree of integration, occupies less space, and can be seamlessly integrated with the original structure of the vehicle 1000 to ensure that the driver's and passengers' vision is not obstructed.

[0062] Imaging element 101 is a planar optical imaging device that can precisely couple, conduct, expand, and couple incident light through an internal array of micro-optical structures to achieve aerial imaging display of the displayed image. Imaging element 101 can be horizontally placed in the driver's instrument panel inside the vehicle. Imaging element 101 can make the image source and imaging surface symmetrical with respect to the imaging surface, transforming the screen display content into an off-screen aerial image, achieving the effects of screen hiding, screen-image separation, and off-screen display.

[0063] The imaging element 101 can be made of at least one of the following materials: glass, plastic, acrylic resin polymer, etc., which have good light transmittance and optical uniformity. Specifically, depending on the system's optical performance, structural strength, and lightweight requirements, high-transmittance optical glass or transparent polymer materials such as optical plastic and acrylic resin polymer can be selected to reduce the overall weight of the imaging element 101 while meeting the imaging optical requirements.

[0064] Imaging element 101 can simultaneously output two independent light beams through optical design, one of which forms a first real image A' and the other forms a second real image B'. The first real image A' and the second real image B' are located on the same side of imaging element 101. Furthermore, the imaging of the first real image A' and the second real image B' does not depend on any medium or carrier, but is directly presented in the air space. Along the direction of light propagation, the real image can enter the field of vision of the human eye. The light-transmitting reflector 102 can be located in the optical path in front of the driver's line of vision. After the second real image B' is reflected by the light-transmitting reflector 102, a virtual image B'' is formed along the reverse extension line of light propagation. The virtual image B'' can also enter the field of vision of the human eye, and similarly, no additional imaging medium is required to receive it.

[0065] The spatial positions of the first real image A' and the virtual image B'' can be precisely registered through optical co-design, ensuring a natural spatial hierarchy between them in the driver's field of vision. For example, the first real image A' can be located in the near-field area directly in front of the driver, used for basic vehicle status information such as speed, fuel level, and gear position, allowing the driver to directly observe the first real image A'; the virtual image B' is located in the far-field area in front of the driver, naturally blending with the road scene ahead, used to present key navigation information such as navigation guidance, ADAS warnings, and lane keeping. This achieves seamless overlay and semantic layering of near-field and far-field information, allowing the driver to simultaneously acquire both types of information without frequently switching their gaze.

[0066] Please see Figure 3 In one example, the imaging element 101 is located inside the dashboard. The imaging element 101 simultaneously projects two beams of light upwards (in front of the driver). One beam is projected directly onto the dashboard at a position 15 centimeters above the dashboard via a short focal length optical path, forming a high-brightness, high-contrast first real image A'. The other beam is formed at a specific position in front of the light-transmitting reflector 102, and after being reflected by the light-transmitting reflector 102, forms a suspended virtual image B'' 2.5 meters in front of the driver. The first real image A' is used to display core driving parameters such as vehicle speed, engine speed, and range, while the virtual image B' is superimposed on the real road to present augmented reality information such as arrow navigation, forward vehicle warning, and blind spot indication.

[0067] In one example, by finely adjusting the optical path angle and the curvature of the light-transmitting reflector 102, the first real image A' and the virtual image B'' can be dynamically adapted to the pupil position of drivers of different heights; ensuring that the virtual image B'' and the real image maintain spatial consistency under different eye positions, avoiding visual misalignment or double images.

[0068] Thus, in this embodiment of the application, the imaging element 101 simultaneously generates a first real image A' and a second real image B', and the light-transmitting reflector 102 reflects the second real image B' to form a virtual image B''. This allows for the simultaneous display of both real and virtual images B'' inside the vehicle, achieving layered display of the real and virtual images B''. This enriches the imaging dimensions and spatial hierarchy of the in-vehicle display, and enhances the information perception experience and safety of drivers and passengers.

[0069] Please see Figure 2-10 In some embodiments of this application, the vehicle display system 100 further includes a first image source 103 and a second image source 104, wherein the first image source 103 is used to illuminate the imaging element 101 so that the imaging element 101 generates a first real image A'; and the second image source 104 is used to illuminate the imaging element 101 so that the imaging element 101 generates a second real image B'.

[0070] Specifically, the first image source 103 and the second image source 104 can be display panels with independently adjustable brightness, color temperature, and refresh rate, capable of outputting image signals with different brightness, color temperature, and refresh rate respectively. The display image of the first image source 103 is modulated by the imaging element 101 to form a first real image A', which is projected in front of the driver's lower viewing angle. The display image of the second image source 104 is modulated by the imaging element 101 to form a second real image B', which is projected far away from the driver's lower viewing angle. The second real image B' is reflected by the light-transmitting reflector 102 and is equivalently imaged in front of the driver at a distance, forming a dual-focal surface display structure that conforms to the physiological focusing habits of the human eye.

[0071] Conversely, when the vehicle display system 100 switches to energy-saving or simplified display mode, the first image source 103 can output and display independently to maintain the normal display of the first real image A', while pausing the display of the second image source 104 to turn off the far-field virtual image B'', thereby reducing system power consumption and improving the energy economy of the vehicle. Of course, the second image source 104 can also be displayed independently, retaining only the far-field navigation virtual image B'', to meet the driver's core information needs in high-speed or cruising scenarios and improve driving focus.

[0072] The first image source 103 and the second image source 104 can be, but are not limited to, one of an LCD display, an OLED display, a MiniLED display, a MicroLED display, a QLED display, and a DLP projection display device. This broadens the selection range of image sources, enhances the versatility and adaptability of the vehicle display system 100, and allows for flexible configuration based on display effects and actual vehicle scenario requirements, thus facilitating the fulfillment of display requirements at different levels and for different specifications.

[0073] In one example, the first image source 103 uses a high-brightness OLED panel, which is dedicated to rendering high-contrast driving parameters; the second image source 104 uses a wide color gamut Mini-LED display, which is adapted to the wide viewing angle and dynamic grayscale performance required for AR virtual images.

[0074] Thus, in this embodiment of the application, by setting up a first image source 103 and a second image source 104 to respectively illuminate the imaging element 101 to generate a first real image A' and a second real image B', the independent control and output of the two images can be realized, so that different imaging content, display parameters and information types can be controlled separately and do not interfere with each other, thereby improving the control flexibility and imaging stability of the display system, and at the same time facilitating differentiated configuration of the two images according to the actual needs of the vehicle scenario.

[0075] Please see Figure 2 In some embodiments of this application, the first image source 103 and the second image source 104 are disposed on the same side of the imaging element 101.

[0076] Please see Figure 2 and Figure 3Specifically, the first image source 103 and the second image source 104 are both arranged on the same side of the imaging element 101. The first real image optical path formed by the first image source 103 and the second real image optical path formed by the second image source 104 are incident on the imaging element 101 in the same direction. The two optical paths are more concentrated and regular in space, which helps to reduce the lateral and longitudinal dimensions of the entire optical system and improve the structural compactness and integration of the vehicle display system 100. At the same time, the same-side arrangement simplifies the installation and positioning of the image sources and the assembly process, reduces the difficulty of optical path debugging, and ensures that the two display images are stably illuminated on the imaging element 101, avoiding problems such as optical path crossing, interference, or excessive space occupation caused by the image sources being placed on both sides of the imaging element 101.

[0077] Conversely, if the first image source 103 and the second image source 104 are located on opposite sides of the imaging element 101, the overall system size will increase, the complexity of optical path design and assembly will increase, and it will also easily cause light crosstalk and imaging interference. In this embodiment, the first image source 103 and the second image source 104 are located on the same side of the imaging element 101, which can effectively avoid the above-mentioned defects and further optimize space utilization and optical performance.

[0078] Please see Figure 2 In some examples, the first image source 103 and the second image source 104 may be arranged side by side along a direction perpendicular to the optical axis (the direction of the vertical axis of the imaging element 101).

[0079] Thus, in this embodiment of the application, placing the first image source 103 and the second image source 104 on the same side of the imaging element 101 can make the overall optical path layout more concentrated and compact, effectively reducing the overall volume and installation space occupied by the vehicle display system 100, which is conducive to realizing the miniaturization and integration design of the device.

[0080] Please see Figure 4 In some embodiments of this application, a first image source 103 forms a first projection area on an imaging element 101, and a second image source 104 forms a second projection area on an imaging element 101; the first projection area and the second projection area at least partially overlap on the imaging element 101, and the overlapping area is located in the middle region of the imaging element 101.

[0081] Specifically, the first image source 103 and the second image source 104 are located at opposite ends on the same side of the imaging element 101, and their projected beams diverge symmetrically on the surface of the imaging element 101 and overlap in the middle region. During the optical path projection and imaging process of the vehicle display system 100, the light emitted by the first image source 103 is incident on the imaging element 101 and forms the first projection area, and the light emitted by the second image source 104 is incident on the imaging element 101 and forms the second projection area. The first projection area and the second projection area can partially overlap or completely overlap. For example, the overlap area of ​​the first projection area and the second projection area can be 10%, 30%, 50%, 70%, 90%, or 100%, etc.

[0082] By setting the first projection area and the second projection area to at least partially overlap, the two image light rays can share a portion of the effective area of ​​the imaging element 101 for transmission and reflection, thereby reducing the overall size requirement of the imaging element 101 while ensuring the normal propagation of their respective imaging light paths. Simultaneously, arranging the overlapping area in the middle region of the imaging element 101 allows full utilization of the central region where the imaging element 101 has the best optical performance and the least imaging distortion, improving the overall imaging quality of the first real image A' and the virtual image B'', and avoiding problems such as increased aberrations and low light utilization caused by excessively offset projection areas.

[0083] Conversely, if the first projection area and the second projection area are completely separated and do not overlap, it will increase the effective area required by the imaging element 101, thereby increasing the system space occupation and structural complexity. If the overlapping area is deviated from the middle area of ​​the imaging element 101, it will easily lead to local imaging distortion, uneven brightness, and other phenomena. In this embodiment, the setting of at least partial overlap with the overlapping area centered can effectively improve the optical path integration and optical utilization, ensuring that both imaging paths have stable and clear display effects.

[0084] In one example, see Figure 4 The first projection area and the second projection area are set in the central area of ​​the imaging element 101 and completely overlap, that is, the overlap rate between the first projection area and the second projection area is 100%.

[0085] In addition, the overlapping area can be optimized through optical simulation to ensure that the two beams can maintain phase independence and diffraction separation in the shared microstructure area, thus avoiding interference and crosstalk.

[0086] Thus, in this embodiment, the first projection area and the second projection area at least partially overlap on the imaging element 101, and the overlapping area is located in the middle region of the imaging element 101. This can make full use of the effective imaging area of ​​the imaging element 101, improve the space utilization of the optical element, and avoid the problem of increased volume caused by the dispersion of the imaging area.

[0087] Please see Figure 5 In some embodiments of this application, the angle between the first image source 103 and the imaging element 101 is α, where 0° < α < 90°; the angle between the second image source 104 and the imaging element 101 is β, where 0° < β < 90°. The angles α and β can be the same or different, and can be adjusted according to the actual application. For example, the angle α between the first imaging source and the imaging element 101 is 2°, 10°, 15°, 20°, 30°, 45°, 60° or 75°, and the angle β between the second image source 104 and the imaging element 101 is 5°, 10°, 25°, 45°, 55° or 80°.

[0088] Thus, in this embodiment, the incident angle and projection direction of the two images can be flexibly adjusted, and the optical path space can be reasonably allocated, which is conducive to achieving a compact layout of the vehicle display system 100.

[0089] Preferably, the angle α between the first image source 103 and the imaging element 101 is 45°, and the angle β between the second image source 104 and the imaging element 101 is 45°; thereby forming a symmetrical incident path at the center of the imaging element 101, which not only matches the natural visual field distribution of the human eye, but also enhances the synergistic consistency between the real image and the virtual image B'' in depth perception.

[0090] Thus, in this embodiment of the application, setting the angle α between the first image source 103 and the imaging element 101, and / or the angle β between the second image source 104 and the imaging element 101 to 45° enables the two image sources to illuminate the imaging element 101 at the optimal incident angle, which facilitates the reasonable layout of the incident light path and the reflected light path; at the same time, it can ensure that the propagation path of the imaging light is more regular.

[0091] Please see Figure 2 or Figure 5 In some embodiments of this application, the first real image A' is mirror-symmetric to the first image source 103 with respect to the imaging element 101, and the second real image B' is mirror-symmetric to the second image source 104 with respect to the imaging element 101.

[0092] Specifically, the light emitted from the first image source 103 is incident on the imaging element 101 and forms a first real image A' after passing through the imaging element 101. The position, size, and shape of the first real image A' and the first image source 103 are mirror-symmetrical about the imaging element 101. Similarly, the light emitted from the second image source 104 forms a second real image B' after passing through the imaging element 101. Its position, size, and shape are also strictly mirror-symmetrical about the second image source 104 about the imaging element 101.

[0093] Understandably, through the mirror-symmetric imaging relationship, the image information output from the image source can maintain the correct imaging orientation and proportion after passing through the imaging element 101, avoiding image flipping, distortion, or misalignment. This ensures that the first real image A' observed by the driver and the virtual image B'' formed by the reflection of the second real image B' are both upright and regular display images. At the same time, this symmetrical imaging relationship helps simplify the optical path design, improves the controllability and consistency of the imaging position, and makes it easier for the vehicle display system 100 to achieve the preset imaging effect during assembly and debugging, thereby improving the reliability and stability of the vehicle display system 100.

[0094] Please refer to further information. Figure 5 In one example, a first image source 103 emits a first image light that is incident on an imaging element 101. The imaging element 101 projects and converges the first image light, forming a first real image A' on the light-emitting side of the imaging element 101. According to the imaging principle of the imaging element 101, the first image source 103 and the first real image A' are mirror-symmetrical about the imaging element 101, and the first real image A' is a real image of the same size as the first image source 103. Wherein, L1 is the distance from the center of the first image source 103 to the center of the imaging element 101, and L1' is the distance from the center of the first real image A' to the center of the imaging element 101, satisfying L1=L1'; α1 is the angle between the first image source 103 and the imaging element 101, and α2 is the angle between the first real image A' and the imaging element 101, satisfying α1=α2; h1 is the height of the first real image A', which, according to imaging geometry, is h1=L1. cosα. Through the above mirror symmetry relationship, the first real image A' can stably and distortion-free reproduce the image information of the first image source 103.

[0095] Please see Figure 5 In another example, the second image source 104 emits a second image light that is incident on the imaging element 101. The imaging element 101 projects and converges the second image light to form a second real image B'. According to the imaging principle of the imaging element 101 and specular reflection, the second image source 104 and the second real image B' are mirror-symmetrical about the imaging element 101, and the second real image B' is a real image of the same size as the second image source 104. Where L2 is the distance from the center of the second image source 104 to the center of the imaging element 101, and L2' is the distance from the center of the second real image B' to the center of the imaging element 101, satisfying L2=L2'; β1 is the angle between the second image source 104 and the imaging element 101, and β2 is the angle between the second real image B' and the imaging element 101, satisfying β1=β2; L3 and L3' are the equivalent distances of the corresponding light paths, satisfying L3=L3'; h2 is the height of the virtual image B'', which, according to imaging geometry, is h2=L2. cosβ+2L3 cosβ. Through the aforementioned mirror symmetry relationship, the second real image B' can reproduce the image information of the second image source 104 without distortion, thereby forming a clear virtual image B'' in the far field.

[0096] Thus, in this embodiment of the application, by mirroring the first real image A' with the first image source 103 and the second real image B' with the second image source 104 about the imaging element 101, the propagation law of the optical path can be clearly controlled, which facilitates the planning and stable output of the real image imaging position, size and imaging effect, and reduces the difficulty of optical path design and debugging.

[0097] Please see Figure 6 and Figure 7 In some embodiments of this application, the vehicle display system 100 further includes a first reflector 105, which is disposed in the optical path between the first image source 103 and the imaging element 101. The first reflector 105 is used to fold the optical path of the first image source 103.

[0098] Specifically, the first reflector 105 is located between the light-emitting side of the first image source 103 and the light-incident side of the imaging element 101. The projected light emitted by the first image source 103 first enters the reflective surface of the first reflector 105, and after being reflected and redirected by the first reflector 105, it enters the imaging element 101 at a preset angle, and finally passes through the imaging element 101 and is projected into the air to form the first real image A'.

[0099] The first reflecting mirror 105 can be one of a plane reflecting mirror, a spherical reflecting mirror, or a freeform surface reflecting mirror. The first reflecting mirror 105 can be fixed in the housing of the vehicle 1000 or the vehicle display system 100 by means of a bracket or adhesive. The angle of the reflecting surface of the first reflecting mirror 105 matches the relative position of the first image source 103 and the imaging element 101. In terms of optical path arrangement, the first reflecting mirror 105 bends the straight optical path of the first image source 103 into a broken optical path, so that the first image source 103 and the imaging element 101 are spatially staggered, thereby completing the optical path transmission within the limited space of the dashboard.

[0100] In this embodiment, the space between the first reflector 105 and the imaging element 101 is an air medium. The light emitted by the first image source 103 enters the imaging element 101 after one reflection. This does not change the imaging logic of the image, but only changes the light propagation path, maintaining the mirror-symmetric imaging relationship between the first real image A' and the first image source 103 about the imaging element 101.

[0101] Thus, in this embodiment, by folding the optical path by setting a first reflector 105 between the first image source 103 and the imaging element 101, the linear installation distance between the first image source 103 and the imaging element 101 can be shortened without changing the imaging effect. This reduces the vertical arrangement space of the vehicle display system 100 inside the vehicle 1000, improves structural compactness, and facilitates integration and installation in limited spaces such as the dashboard. Simultaneously, the folding of the optical path allows for flexible adjustment of the placement angle and installation position of the first image source 103, enhancing the flexibility and adaptability of the overall vehicle interior layout and ensuring that the light from the first image source 103 can stably and efficiently incident on the preset area of ​​the imaging element 101.

[0102] Please see Figure 6 and Figure 7 In some embodiments of this application, the vehicle display system 100 further includes a second reflector 106, which is disposed between the second image source 104 and the imaging element 101, and is used to fold the optical path of the second image source 104.

[0103] Specifically, the second reflector 106 is located between the light-emitting side of the second image source 104 and the light-incident side of the imaging element 101. The projected light emitted from the second image source 104 first enters the reflective surface of the second reflector 106, and after being reflected and redirected by the second reflector 106, it enters the incident surface of the imaging element 101 at a preset angle, and then is projected into space by the imaging element 101 to form the corresponding second real image B'.

[0104] The second reflector 106 can be one of a plane reflector, a spherical reflector, or a freeform surface reflector. The second reflector 106 is fixedly installed by a support structure inside the housing, and its reflection angle is adapted to the relative position of the second image source 104 and the imaging element 101.

[0105] In terms of spatial arrangement, the second reflector 106 bends the straight light path of the second image source 104 into a broken light path, so that the second image source 104 and the imaging element 101 can be arranged in a staggered manner, and the light paths of the second image source 104 and the first reflector 105 are independent of each other; the light emitted by the second image source 104 is reflected once by the second reflector 106 and then enters the imaging element 101.

[0106] Thus, in this embodiment, by setting a second reflector 106 between the second image source 104 and the imaging element 101 to fold the optical path of the second image source 104, the straight length of the optical path can be further compressed, reducing the overall volume and installation space occupied by the display module, thereby achieving a more compact and miniaturized structural design for the vehicle display system 100. In addition, the folding of the optical path allows for flexible adjustment of the placement angle and installation position of the second image source 104, improving the flexibility and adaptability of the vehicle interior layout, and ensuring that the light from the second image source 104 can be stably and efficiently incident on the preset area of ​​the imaging element 101.

[0107] Please see Figure 7 In some embodiments of this application, the first real image A' is located in the near-field display area of ​​the vehicle display system 100, and the virtual image B'' is located in the far-field display area of ​​the vehicle display system 100, wherein the near-field display area and the far-field display area are located on the same side of the imaging element 101.

[0108] It is worth noting that the near-field display area refers to the display area that is close to the driver's eyes and facilitates quick access to key driving information. For example, the area above the instrument panel and close to the driver's line of sight, such as the tachometer and fuel gauge. The far-field display area, on the other hand, refers to the long-distance imaging area on the windshield or a dedicated reflective screen, formed by optical magnification and projection of a virtual image B''. The far-field display area can be used to present information that requires long-term focusing but does not interfere with close-range operation, such as navigation guidance and ADAS warnings.

[0109] The first real image A' is directly formed in the near-field region on the light-emitting side of the imaging element 101, constituting the near-field display area for direct observation by the driver. The second real image B' is reflected by the light-transmitting mirror 102 and forms a virtual image B'' at a distance in front of the imaging element 101 on the same side, constituting the far-field display area. Both the near-field and far-field display areas are located on the same side of the imaging element 101 facing the driver, allowing the driver to simultaneously observe the first real image A' in the near field and the virtual image B'' in the far field without changing their head posture or observation direction. Furthermore, the near-field display area is close to the dashboard of the vehicle 1000, and the far-field display area is located in the distant road condition area outside the windshield of the vehicle 1000. The two imaging areas are spatially layered and both remain within the same light path range on the same side of the imaging element 101, without forming an opposite-side distribution.

[0110] Thus, in this embodiment, the first real image A' is arranged in the near-field display area and the virtual image B'' is arranged in the far-field display area, and the near-field display area and the far-field display area are on the same side of the imaging element 101, which can realize the same-side layered presentation of near-field information and far-field information, making it convenient for drivers and passengers to obtain display information at different distances on the same observation direction 0, thereby improving driving safety.

[0111] Please see Figure 3 and Figure 5 In some embodiments of this application, the position of the first real image A' in the height direction of the vehicle 1000 is lower than the reflection area of ​​the second real image B' on the light-transmitting mirror 102.

[0112] Specifically, the reflection area of ​​the second real image B' on the light-transmitting mirror 102 serves as the imaging reference plane for the virtual image B''. Taking the vertical direction of the vehicle 1000 as the height reference, the coordinate value of the center of the first real image A' in the height direction of the vehicle 1000 is less than the coordinate value of the center of the reflection area formed by the second real image B' on the light-transmitting mirror 102. That is, the two are staggered vertically in the height direction.

[0113] The first real image A' corresponds to the near-field display area, and its height is adapted to the driver's downward viewing angle. It is roughly flush with or slightly higher than the upper surface of the vehicle 1000 dashboard, making it easy for the driver to quickly read near-field information such as the vehicle 1000 status. The reflection area of ​​the second real image B' on the light-transmitting mirror 102 corresponds to the imaging optical path of the far-field virtual image B''. Its height is adapted to the driver's viewing angle when looking at the road conditions ahead. It is roughly located in the upper middle part of the light-transmitting mirror 102, that is, close to the horizontal direction of the driver's line of sight.

[0114] Please see Figure 8 , Figure 9 and Figure 10 It is understandable that, typically, the vehicle-mounted display system 100 can form a first real image A' and a virtual image B'' in front of a person's eyes. The height of these two images includes three possibilities: h1 > h2, h1 = h2, and h1 < h2, where h1 represents the height of the first real image A' in front of the person's eyes, and h2 represents the height of the virtual image B'' in front of the person's eyes. For example... Figure 8 The example shown is the case of Example 1, corresponding to h1 > h2. In this case, the height of the first real image A' is higher than the height of the virtual image B''; as shown Figure 9 The example shown is from Example 2, where h1 = h2. In this case, the heights of the first real image A' and the virtual image B'' are equal. Figure 10 The diagram illustrates Example 3, where h1 < h2. In this case, the height of the first real image A' is lower than the height of the virtual image B''. In practical use, the first real image A' is closer to the eye, making it better positioned in the lower field of vision for optimal viewing; the virtual image B'' is farther from the eye, making it better suited to the driver's line of sight when positioned in the upper field of vision. Therefore, the optimal height relationship for this system is: the first real image A' is lower than the virtual image B'', i.e., h1 < h2. This layout allows the driver to access both near-field and far-field information without significantly adjusting their line of sight, effectively reducing the frequency of visual focus switching and neck strain, thus improving the user experience.

[0115] Thus, in this embodiment, by setting the position of the first real image A' in the height direction of the vehicle 1000 to be lower than the reflection area of ​​the second real image B' on the light-transmitting mirror 102, the near-field real image and the far-field virtual image B'' can be reasonably spatially offset in the height direction, effectively avoiding mutual occlusion and interference between the two imaging optical paths during propagation and observation, ensuring that both near-field and far-field display information can be clearly and completely presented, and at the same time, optimizing the matching degree between the human eye's observation angle and the display area.

[0116] In some embodiments of this application, the first real image A' is used to display vehicle 1000 status information, and the virtual image B'' is used to display navigation information.

[0117] Specifically, the first real image A' formed by the first image source 103 is mainly used to display status information related to the operation of the vehicle 1000. This status information includes, but is not limited to, basic vehicle information such as speed, RPM, mileage, coolant temperature, fuel level, tire pressure, fault indications, and indicator light signals. The virtual image B'' formed by the second image source 104 after passing through the imaging element 101 and the light-transmitting reflector 102 is mainly used to display navigation information related to the driving path, including but not limited to route guidance, intersection turning, distance indications, lane-level navigation, and road condition information. The first real image A' serves as a near-field display, allowing the driver to quickly and closely observe the vehicle 1000's operating status. The virtual image B' serves as a far-field display, corresponding to the actual road conditions ahead of the vehicle 1000, enabling the driver to intuitively obtain navigation guidance while looking straight ahead, without frequently switching their gaze.

[0118] Thus, in this embodiment, the first real image A' is used to display the vehicle 1000 status information and the virtual image B'' is used to display navigation information. The near-field and far-field layered display can be achieved according to the importance of the information and observation habits: the vehicle 1000 status information is presented as a near-field real image, which is convenient for the driver to view quickly and intuitively; the navigation information is presented as a far-field virtual image B'', which is convenient for the driver to perceive from a distance without frequently adjusting their line of sight.

[0119] Please see Figures 11-13 In some embodiments of this application, the imaging element 101 is a matrix waveguide imaging element.

[0120] Specifically, the imaging element 101 contains a matrix-arranged optical waveguide array, which consists of multiple parallel optical waveguide units. Each optical waveguide unit can independently transmit light and perform imaging, and the multiple optical waveguide units work together to simultaneously image the first real image A' and the second real image B'. The matrix optical waveguide imaging element 101 can be made of transparent optical materials and has an overall thin-film structure, which is suitable for embedded installation in vehicle dashboards. This effectively reduces the size and thickness of the imaging element 101 and improves the compactness of the system.

[0121] The light emitted from the first image source 103 is incident on one side of the light-incident surface of the matrix optical waveguide imaging element 101. After entering the optical waveguide array, the light is transmitted along the extension direction of the optical waveguide unit and finally exits from the light-exiting surface to form a first real image A'. The light emitted from the second image source 104 is incident on the same side of the light-incident surface of the matrix optical waveguide imaging element 101 (partially overlapping with the incident area of ​​the first image source 103, and the overlapping area is located in the middle area of ​​the imaging element 101). After being transmitted through the corresponding optical waveguide unit, the light is exited from the light-exiting surface to form a second real image B', ensuring that the second real image B' can be successfully projected onto the light-transmitting mirror 102 and reflected to form a far-field virtual image B''.

[0122] Thus, in this embodiment of the application, by employing the matrix optical waveguide imaging element 101, the uniformity of imaging can be improved by utilizing the light transmission and imaging characteristics of the optical waveguide itself; at the same time, the matrix optical waveguide can effectively compress the volume of the optical system, making the vehicle display system 100 compact in structure.

[0123] In some embodiments of this application, the imaging element 101 includes one of a dihedral reflector, a top reflector, a cross mirror reflector, a freeform surface mirror, and an orthogonal cemented micromirror.

[0124] Specifically, the imaging element 101 can be flexibly selected from any one of the following: a dihedral reflector, a top reflector, a cross mirror reflector, a freeform surface reflector, or an orthogonal cemented micromirror, depending on the system's optical path layout and imaging accuracy requirements. Among these, the dihedral reflector, top reflector, cross mirror reflector, and orthogonal cemented micromirror can achieve stable light reflection and collimated output, while the freeform surface reflector can adaptively bend and correct the optical path according to the vehicle's spatial layout. It is understood that regardless of the structure chosen, the imaging element 101 is positioned on the light-emitting side of the first image source 103 and the second image source 104, receiving the projected light from the first image source 103 and the second image source 104, and forming a first real image A' and a second real image B' respectively, providing a unified imaging basis for the near-field vehicle 1000 status display and the far-field navigation virtual image B'' display.

[0125] Thus, in this embodiment, the reflective structure can be flexibly selected according to the optical path requirements of the vehicle display, thereby improving the optical performance and imaging stability of the display system.

[0126] Please see Figure 11 and Figure 12 In some embodiments of this application, the matrix waveguide imaging element 101 includes a first micromirror array 1011 and a second micromirror array 1012, and the reflecting surfaces of the first micromirror array 1011 and the second micromirror array 1012 are orthogonal.

[0127] Specifically, please refer to Figure 12 Both the first micromirror array 1011 and the second micromirror array 1012 are composed of multiple micromirror unit matrices, and their reflective surfaces are arranged orthogonally to each other. The light emitted from the first image source 103 and the second image source 104 first enters the first micromirror array 1011 of the matrix optical waveguide imaging element 101, where the first micromirror array 1011 performs a first reflection and guidance on the two light rays; after being reflected by the first micromirror array 1011, the two light rays continue to propagate to the second micromirror array 1012, where the second micromirror array 1012 performs a second reflection on the two light rays; finally, after being reflected by the second micromirror array 1012, the two light rays exit from the light-emitting surface of the matrix optical waveguide imaging element 101, forming the first real image A' and the second real image B', respectively.

[0128] During the entire optical path transmission process, the light from the first image source 103 and the second image source 104 share the first micro-mirror array 1011 and the second micro-mirror array 1012 for propagation and reflection. Imaging is distinguished only by the difference in the incident area and the propagation angle. The orthogonal structure of the first micro-mirror array 1011 and the second micro-mirror array 1012 is used to ensure that the light is transmitted stably along the preset path.

[0129] Thus, in this embodiment, the orthogonal reflection structure enables stable bidirectional collimated reflection of light within the optical waveguide, effectively ensuring the stability and directionality of the imaging optical path, reducing light scattering and crosstalk, and improving imaging clarity and uniformity.

[0130] Please refer to further information. Figure 12 In some embodiments of this application, the matrix waveguide imaging element 101 further includes a first transparent plate 1013 and a second transparent plate 1014, with a first micromirror array 1011 and a second micromirror array 1012 disposed between the first transparent plate 1013 and the second transparent plate 1014.

[0131] Specifically, both the first transparent plate 1013 and the second transparent plate 1014 are made of optically transparent material, and the first micro-mirror array 1011 and the second micro-mirror array 1012 are disposed between the first transparent plate 1013 and the second transparent plate 1014. The first transparent plate 1013 and the second transparent plate 1014 are arranged parallel to each other or at a preset angle, serving as the incident surface substrate and the exit surface substrate of the matrix optical waveguide imaging element 101, respectively. The light from the first image source 103 and the second image source 104 is incident from the first transparent plate 1013, and after being reflected and guided by the first micro-mirror array 1011 and the second micro-mirror array 1012 in sequence, it is emitted from the second transparent plate 1014 and forms the first real image A' and the second real image B', respectively.

[0132] The first transparent plate 1013 and the second transparent plate 1014 are used to support, fix and protect the internal first micro-mirror array 1011 and second micro-mirror array 1012, ensuring that the two sets of orthogonal micro-mirror arrays maintain a stable relative position and reflection angle, so that the two light rays can be transmitted stably according to the preset optical path, while maintaining the flatness and reliability of the overall structure of the matrix optical waveguide imaging element 101.

[0133] The bonding surfaces between the first transparent plate 1013 and the second transparent plate 1014 are bonded and fixed with adhesive. The adhesive can be an optical adhesive material with high light transmittance and high bonding strength, specifically one of optical adhesive, photosensitive adhesive, and thermosetting adhesive. While ensuring reliable bonding between the first transparent plate 1013 and the second transparent plate 1014, it also ensures the transmittance of light from the first image source 103 and the second image source 104 when they are transmitted inside the matrix optical waveguide imaging element 101, reducing light loss and stray light generation, thereby ensuring the imaging brightness and clarity of the first real image A' and the second real image B'.

[0134] Thus, in this embodiment of the application, by setting a first transparent plate 1013 and a second transparent plate 1014 in the matrix waveguide imaging element 101, a stable structural support and installation reference can be provided for the first micro-mirror array 1011 and the second micro-mirror array 1012, ensuring the positional accuracy and relative orthogonality of the mirror array, and improving the reliability and stability of the overall structure.

[0135] Please see Figure 3 In some embodiments of this application, the light-transmitting reflector 102 is the windshield of the vehicle 1000.

[0136] It is worth noting that the light-transmitting reflector 102 directly uses the original windshield of the vehicle 1000, without the need for an additional independent reflective lens in the driver's field of vision. The second real image B' formed by the imaging element 101 is projected onto the inner surface of the windshield. Utilizing the light-transmitting and partially reflective properties of the windshield itself, the light from the second real image B' is reflected to the position of the human eye, thereby forming a far-field virtual image B'' in front of the vehicle 1000.

[0137] Thus, in this embodiment, the light-transmitting reflector 102 is directly adopted from the windshield of the vehicle 1000, which eliminates the need for additional independent reflective lenses and greatly simplifies the overall structure of the vehicle display system 100. At the same time, the windshield can be used directly to form a far-field virtual image B'', so that navigation and other information can be projected to the distance in front of the driver without the need for additional optical reflective components, thereby improving space utilization.

[0138] In some embodiments of this application, the windshield is laminated glass or laminated glass containing a wedge-shaped film.

[0139] Specifically, the windshield can adopt a multi-layer composite structure, with the main body being laminated glass, that is, an intermediate film layer sandwiched between two layers of glass to improve strength and safety. In the area of ​​the windshield used to form the far-field virtual image B'', a laminated glass structure containing a wedge-shaped film can be further adopted. Through the gradual change in thickness and angle design of the intermediate wedge-shaped film layer, the reflected light from the second real image B' projected onto the windshield is compensated and corrected for the optical path, reducing optical defects such as ghosting and ghosting caused by the thickness of the glass, and ensuring that the far-field navigation virtual image B' observed by the driver is clear and distortion-free.

[0140] Thus, in this embodiment, using laminated glass or laminated glass with a wedge-shaped film as the windshield of the vehicle 1000 not only meets the safety strength and structural reliability requirements of vehicle glass, but also effectively optimizes the imaging optical path of the virtual image B'' through the wedge-shaped film structure, thereby improving the display effect of the far-field virtual image B''.

[0141] Please see Figure 14 In some embodiments of this application, the vehicle display system 100 further includes at least one curved mirror 107 disposed in the optical path from the second real image B' to the light-transmitting reflector 102. The curved mirror 107 is used to perform aberration correction on the second real image B'.

[0142] Specifically, please refer to Figure 14 The curved mirror 107 is located in the optical path between the light-emitting side of the imaging element 101 and the light-transmitting mirror 102. After the light rays of the second real image B' are emitted from the matrix waveguide imaging element 101, they first enter the curved mirror 107, are reflected by the curved mirror 107, and then propagate to the light-transmitting mirror 102.

[0143] The curved mirror 107 can be one of a spherical mirror, an aspherical mirror, or a freeform mirror, and one or more can be set according to the optical path layout and imaging requirements. During the optical path transmission, the curved mirror 107 reflects, converges, and adjusts the light rays of the second real image B' through its own surface curvature, and compensates for and corrects various aberrations such as distortion and field curvature generated during the optical path propagation, so that the virtual image B'' finally formed in the far field is regular, undistorted, and has clear edges, thereby improving the imaging accuracy and viewing effect of the virtual image B', such as navigation information.

[0144] Thus, in this embodiment of the application, by setting at least one curved mirror 107 in the optical path from the second real image B' to the light-transmitting mirror 102 to perform aberration correction on the second real image B', the display screen can better match the windshield with a certain curvature, and the optical distortion caused by the curvature of the windshield itself can effectively pre-correct the aberration of the virtual image B'', significantly improving the imaging effect of the far-field virtual image B''.

[0145] Please see Figure 15 In some embodiments of this application, the vehicle display system 100 further includes an interaction module 108, which is used to sense the user's interaction with the first real image A' and / or the virtual image B''.

[0146] Specifically, the interaction module 108 is integrated inside the vehicle display system 100 or installed near the driver's seat, and can adopt at least one of the following structural forms: touch sensing, infrared sensing, capacitive sensing, visual recognition, or voice recognition. The detection area of ​​the interaction module 108 covers at least the near-field display area where the first real image A' is located and / or the far-field display area where the virtual image B'' is located. It can sense and recognize in real time the user's interactive operations such as clicking, swiping, selecting, zooming in, and zooming out on the vehicle 1000 status information displayed by the first real image A' and the navigation information displayed by the virtual image B''. When the user performs an interactive action on the first real image A' or the virtual image B'', the interaction module 108 transmits the corresponding operation signal to the control unit of the vehicle display system 100 to realize the function response such as switching the display content, adjusting parameters, and confirming information, thereby completing the human-machine interaction between the driver and the near-field and far-field displays.

[0147] Thus, in this embodiment of the application, by setting an interaction module 108 in the vehicle display system 100, the user's touch, gesture or voice interaction with the first real image A' and virtual image B'' can be sensed in real time, realizing interactive control of near-field vehicle 1000 status information and far-field navigation information, improving the convenience and intuitiveness of the driver's operation; at the same time, the driver does not need to operate physical buttons, reducing the shift of eyes and distraction of operation during driving.

[0148] In some embodiments of this application, the interaction module 108 is a gesture recognition module, and the interaction operation includes at least one of clicking, dragging, or zooming.

[0149] Specifically, the gesture recognition module can be one of an infrared gesture sensor, a visual camera, or a depth camera, and can be arranged on the housing of the vehicle display system 100 or at a corresponding position on the dashboard. The recognition area of ​​the gesture recognition module covers the near-field display area where the first real image A' is located and / or the far-field display area where the virtual image B'' is located.

[0150] Users can perform preset gestures in front of the corresponding display area. The gesture recognition module collects and recognizes the user's gestures in real time, including at least one of click, drag, or zoom gestures. Click gestures are used to select and confirm displayed items in the first real image A' or virtual image B'', drag gestures are used to flip or move displayed content, and zoom gestures are used to enlarge or reduce the displayed image. The gesture recognition module transmits the recognized gesture signals to the control unit of the in-vehicle display system 100 to complete the corresponding display content adjustment and function switching, realizing contactless human-machine interaction.

[0151] Thus, in this embodiment, the driver can intuitively control the near-field real image and the far-field virtual image B'' in a non-contact manner while driving, without touching the screen or physical buttons, reducing the complexity of operation; at the same time, it can improve the smoothness and accuracy of interaction, and reduce the safety hazards caused by eye shift and manual operation.

[0152] Please see Figure 3 , Figure 7 or Figure 15 This application provides a vehicle 1000, which includes the above-described vehicle display system 100.

[0153] Thus, thanks to the aforementioned vehicle display system 100, clear layered display of near-field real image and far-field virtual image B'' can be achieved. While ensuring high imaging quality and compact structure, it improves the driver's information reading efficiency and ease of operation, effectively reduces eye movement and operational distraction, and significantly enhances driving safety.

[0154] In some embodiments of this application, the in-vehicle display system 100 is embedded in the dashboard of the vehicle 1000.

[0155] Specifically, the in-vehicle display system 100 is integrated and installed inside the dashboard in front of the driver's seat of the vehicle 1000, without protruding from the dashboard surface, maintaining the flatness and aesthetics of the cockpit interior. Components such as the matrix waveguide imaging element 101, the first reflector 105, the second reflector 106, the image source, and the interaction module 108 are all housed inside the dashboard, with only the light-emitting area and optical path of the first real image A' exposed. The first real image A' is emitted from above the dashboard, forming a near-field display area for the driver to view the vehicle 1000's status information at close range; the light from the second real image B' is projected upwards from inside the dashboard onto the windshield, and after reflection, forms a far-field virtual image B'', used to display navigation information. The integrated embedded installation structure does not occupy extra space in the cockpit, does not obstruct the driver's view, and at the same time, it protects and fixes the internal optical components of the in-vehicle display system 100, improving system stability and the consistency of the overall vehicle appearance.

[0156] Thus, in this embodiment of the application, the vehicle display system 100 is embedded in the dashboard of the vehicle 1000, which can make full use of the original installation space in the vehicle, making the overall layout more neat and beautiful, without taking up extra space in the vehicle; at the same time, it is beneficial to protect the display system, improve structural stability and reliability, and reduce the impact of driving vibration on optical imaging.

[0157] In this specification, the terms "specifically," "furthermore," "particularly," "understandably," etc., refer to specific features, structures, materials, or characteristics described in connection with embodiments or examples that are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0158] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this application pertain.

[0159] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A vehicle-mounted display system, characterized in that, include: First image source; Second image source; An imaging element configured to generate a first real image based on a light beam emitted from a first image source, and to generate a second real image based on a light beam emitted from a second image source; A light-transmitting reflector configured to reflect the second real image to form a virtual image.

2. The vehicle-mounted display system according to claim 1, characterized in that, The first image source forms a first projection area on the imaging element, and the second image source forms a second projection area on the imaging element; The first projection area and the second projection area at least partially overlap on the imaging element, and the overlapping area is located in the middle region of the imaging element.

3. The vehicle-mounted display system according to claim 2, characterized in that, The angle between the first image source and the imaging element is α, where 0° < α < 90°; the angle between the second image source and the imaging element is β, where 0° < β < 90°.

4. The vehicle-mounted display system according to claim 1, characterized in that, Also includes: A first reflector is disposed between the first image source and the imaging element, and the first reflector is used to fold the optical path of the first image source.

5. The vehicle-mounted display system according to claim 4, characterized in that, Also includes: A second reflector is disposed between the second image source and the imaging element, and the second reflector is used to fold the optical path of the second image source.

6. The vehicle-mounted display system according to claim 1, characterized in that, The first real image is located in the near-field display area of ​​the vehicle display system, and the virtual image is located in the far-field display area of ​​the vehicle display system, wherein the near-field display area and the far-field display area are located on the same side of the imaging element.

7. The vehicle-mounted display system according to claim 6, characterized in that, The position of the first real image in the vehicle height direction is lower than the reflection area of ​​the second real image on the light-transmitting mirror.

8. The vehicle-mounted display system according to claim 1, characterized in that, The imaging element is a matrix optical waveguide imaging element.

9. The vehicle-mounted display system according to claim 8, characterized in that, The matrix waveguide imaging element includes a first micromirror array and a second micromirror array, and the reflecting surfaces of the first micromirror array and the second micromirror array are orthogonal.

10. The vehicle-mounted display system according to claim 9, characterized in that, The matrix waveguide imaging element further includes a first transparent plate and a second transparent plate, with the first micromirror array and the second micromirror array disposed between the first transparent plate and the second transparent plate.

11. The vehicle-mounted display system according to claim 1, characterized in that, The light-transmitting reflector is the windshield of the vehicle, and the windshield is laminated glass or laminated glass with a wedge-shaped film.

12. The vehicle-mounted display system according to claim 1, characterized in that, Also includes: At least one curved mirror is disposed in the optical path from the second real image to the light-transmitting mirror, and the curved mirror is used to perform aberration correction on the second real image.

13. The vehicle-mounted display system according to any one of claims 1-12, characterized in that, The in-vehicle display system also includes: An interaction module is used to sense user interaction operations on the first real image and / or the virtual image.

14. A vehicle, characterized in that, Including the vehicle display system as described in any one of claims 1-13.

15. The vehicle according to claim 14, characterized in that, The in-vehicle display system is embedded in the vehicle's dashboard.

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