A multi-view display vehicle display system

Abstract

This invention discloses a multi-view vehicle display system, comprising multiple light generating units, a light control device, and a control device. The multiple light generating units generate image light rays. The light control device regulates the propagation direction of the light rays emitted by the light generating units, so that the light rays generated by each light generating unit are reflected by the vehicle's windshield and emitted to at least two viewing areas. The control device is connected to both the light generating units and the light control device, and is used to control at least one of the light generating units and the light control device to project image light rays containing image content corresponding to the position of the viewing area onto each viewing area according to the vehicle's status and the priority of the generated information. The vehicle display system includes multiple light control devices, and different light control devices correspond to different light generating units, with different propagation directions for the light rays corresponding to the multiple light control devices.

Description

[0001] This divisional application is based on the patent application filed on January 21, 2020, with application number 2020100710805 and invention title "A Vehicle Display System with Multi-view Display". Technical Field

[0002] This invention relates to the field of vehicle display technology, and in particular to a multi-view vehicle display system. Background Technology

[0003] In recent years, with the continuous development of technologies such as vehicle intelligence, vehicle networking, and autonomous driving, mobile vehicle terminals have received a plethora of information and expanded into various applications. People have an increasing demand for connecting all displays in the vehicle to flexibly display various types of information. However, when drivers perform related operations, their line of sight is easily deflected, posing potential safety risks.

[0004] Head-up display (HUD) technology can prevent drivers from looking down at the instrument panel or other displays while driving, thus improving driving safety and providing a better driving experience. It has received increasing attention in recent years and has great application potential in in-vehicle intelligent displays.

[0005] Existing head-up display devices use freeform surface mirrors. The image light generated by the image source is reflected by a plane mirror and a freeform surface mirror before entering the windshield. The light is then reflected by the windshield and enters the user's eyes. However, this type of head-up display device can only display the image to the user within a defined field of view, which is generally within 10 degrees. The displayed image size is very small, and it can generally only display vehicle speed or direction information. It cannot display richer content and cannot meet the needs of different users such as drivers and passengers, thus limiting the further promotion and application of head-up display devices. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-view vehicle display system that can display different images to different viewing areas inside the vehicle, and can display corresponding images to different viewing areas according to the vehicle status.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A multi-view vehicle display system includes multiple light generating units, a light control device, and a control device;

[0009] Multiple light generating units are used to generate image light rays;

[0010] The light control device is used to regulate the propagation direction of the light emitted by the light generating part, so that the light generated by each light generating part is reflected by the windshield of the vehicle and emitted to at least two eye box areas.

[0011] The control device is connected to the light generating unit and the light control device respectively, and is used to control at least one of the light generating unit and the light control device to project image light containing image content that matches the position of the eye box area to each eye box area according to the vehicle status and the priority of the generated information.

[0012] The vehicle display system includes multiple light control devices, and different light control devices correspond to different light generating units, with the multiple light control devices corresponding to different propagation directions of the emitted light;

[0013] The light control device includes a first optical part, a second optical part and a third optical part. The first optical part is used to adjust the main optical axis direction of the light emitted by the light generating part, so that the light generated by each light generating part is reflected by a preset surface and then emitted into the eye box area, wherein the preset surface includes the windshield of the vehicle.

[0014] The second optical unit is used to converge the light emitted from the first optical unit, so that the light is reflected by the preset surface and emitted into the eye box area, and the light is converged to the same preset position;

[0015] The third optical unit is used to expand the light to control the divergence angle and / or propagation direction of the light, and to expand the light emitted by the second optical unit and guide it to be incident on the preset surface.

[0016] Preferably, it includes a first to an Mth group of light generating units and a first to an Mth group of light control devices, wherein the i-th light control device corresponds to the i-th group of light generating units, and each group of light generating units includes a plurality of the light generating units, wherein the first to an Mth group of light generating units respectively generate the same image light or different image light;

[0017] The i-th light control device is used to converge the light generated by each light generating part of the i-th group of light generating parts to the i-th eye box region after being reflected by the windshield, i∈[1,M], where M is a positive integer greater than or equal to 2, and the 1st to Mth eye box regions are different eye box regions.

[0018] Preferably, the light control device is used to regulate the propagation direction of the light emitted by the light generating unit, so that the light generated by each light generating unit is reflected by the windshield of the vehicle and then emitted to the eye box area in the driver's position and the eye box area in the non-driver's position.

[0019] Preferably, at least some of the multiple light generating units are arranged according to a preset rule, and image light is generated by the multiple light generating units.

[0020] Preferably, the light generating parts are arranged in at least one of rectangular, hexagonal, and triangular shapes; or, the light generating parts are arranged in at least one of regular hexagonal and equilateral triangular shapes.

[0021] Preferably, it also includes a data acquisition device for acquiring vehicle driving information;

[0022] The control device includes:

[0023] The evaluation module is used to assess the priority of the generated information. The higher the priority of the information, the more important the information is to safe driving or the user.

[0024] The determination module, connected to the acquisition device, is used to determine the vehicle status based on the vehicle's driving information.

[0025] Preferably, the generated information is divided into first information, second information, third information, or fourth information according to the priority of attention, with the priority of the first information, second information, third information, and fourth information decreasing in that order.

[0026] The control device is specifically used to project image light containing a display option operation interface onto the eye box area in the driver's position and the eye box area in the non-driver's position when the vehicle is parked. The display option operation interface includes a first information option, a second information option, a third information option, or a fourth information option. The user can select any information option to control the projection of an image containing the content corresponding to the selected information onto the eye box area.

[0027] Preferably, the control device is specifically used to, when the vehicle is parked, control the projection of image light onto the eye box area in the driver's position or the eye box area in the non-driver's position, displaying the content corresponding to the information selected by the user in the main display form.

[0028] Preferably, the control device is specifically used to, when the vehicle is in a parked state, control the projection of image light onto the eye box area in the driver's position or the eye box area in the non-driver's position, displaying the content corresponding to the information generated by the non-user-selected type in a secondary display form.

[0029] Preferably, the control device is specifically used to switch the information content currently displayed in a secondary display format in the image screen to be displayed in a primary display format in the image screen according to the user's operation.

[0030] Preferably, the generated information is divided into first information, second information, third information, or fourth information according to the priority of attention, with the priority of the first information, second information, third information, and fourth information decreasing in that order. The first information includes vehicle operating data, and the second information includes vehicle navigation map information, navigation prompt information, or planned route information.

[0031] The control device is specifically used to, if the vehicle is in a temporary stopped state during driving, and when the vehicle restarts driving, but the eye box area in the driver's position does not display the content corresponding to the first information or the content corresponding to the second information, then control the projection of image light that displays the content corresponding to the first information or the content corresponding to the second information in the main display form onto the eye box area in the driver's position.

[0032] Preferably, the control device is specifically used to, when the vehicle is in a parked state, switch the information displayed in the driver's position eye-viewing area to the non-driver's position eye-viewing area according to the user's operation in the driver's position, or switch the information displayed in the non-driver's position eye-viewing area to the driver's position eye-viewing area according to the user's operation in the non-driver's position.

[0033] Preferably, it also includes a monitoring device for monitoring the area where the user's line of sight falls;

[0034] The control device is also used to control the light control device to project image light in real time onto the area where the user's line of sight falls.

[0035] Preferably, the control device is specifically used to control the light control device to scale the content corresponding to the generated information in the screen according to the user's operation.

[0036] As can be seen from the above technical solution, the multi-view vehicle display system provided by the present invention includes multiple light generating units, a light control device, and a control device. The multiple light generating units are used to generate image light rays. The light control device is used to regulate the propagation direction of the light rays emitted by the light generating units, so that the light rays generated by each light generating unit are reflected by the vehicle's windshield and emitted to at least two viewing areas. The control device is used to control at least one of the light generating units and the light control device to project image light rays containing image content corresponding to the position of the viewing area onto each viewing area according to the vehicle's status and the priority of the generated information. Therefore, the multi-view vehicle display system of the present invention can display different image images to different viewing areas within the vehicle, and can display corresponding image images to different viewing areas according to the vehicle's status. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 A schematic diagram of a multi-view vehicle display system provided in an embodiment of the present invention;

[0039] Figure 2 A schematic diagram of a multi-view vehicle display system according to an embodiment of the present invention, comprising two sets of light generating units and a light control device;

[0040] Figure 3 for Figure 2 The diagram shown illustrates the propagation of light.

[0041] Figure 4 This is a schematic diagram of a light control device for a multi-view vehicle display system according to another embodiment of the present invention, which expands light into two light diffusion regions.

[0042] Figure 5 This is a schematic diagram of a light control device according to an embodiment of the present invention;

[0043] Figure 6 This is a schematic diagram of a light control device according to another embodiment of the present invention;

[0044] Figure 7 This is a flowchart illustrating a method in which the control device projects image light onto each eye box area, the image content of which corresponds to the position of the eye box area.

[0045] Figure 8 This is a windshield display image as seen from the eye box area according to an embodiment of the present invention;

[0046] Figure 9 This is a view of the windshield as seen from the eye box area, according to another embodiment of the present invention. Detailed Implementation

[0047] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0048] The present invention provides a multi-view vehicle display system, including multiple light generating units, a light control device, and a control device;

[0049] Multiple light generating units are used to generate image light rays;

[0050] The light control device is used to regulate the propagation direction of the light emitted by the light generating part, so that the light generated by each light generating part is reflected by the windshield of the vehicle and emitted to at least two eye box areas.

[0051] The control device is connected to the light generating unit and the light control device respectively, and is used to control at least one of the light generating unit and the light control device to project image light containing image content that matches the position of the eye box area to each eye box area according to the vehicle status and the priority of the generated information.

[0052] In this context, image rays refer to light carrying image information; the user's eyes receive these rays and can then see the image. The eye box area refers to the region where the user's eyes can receive light and view the image. In the vehicle display system, multiple light generating units are arranged according to a preset rule, and image rays are generated by these units. Specifically, the brightness and color of the light generated by each light generating unit can be controlled to produce image rays.

[0053] In this multi-view vehicle display system, image light is emitted to at least two viewing areas via a light control device. The control device, based on the vehicle's status and the priority of information generation, controls at least one of the light generating unit and the light control device to project image light containing image content corresponding to the location of each viewing area onto each viewing area. Therefore, the multi-view vehicle display system of this invention can display different images to different viewing areas within the vehicle, and can display corresponding images to different viewing areas according to the vehicle's status.

[0054] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a multi-view vehicle display system provided in an embodiment of the present invention. The multi-view vehicle display system includes multiple light generating units 11, a light control device 12, and a control device. The multiple light generating units 11 are used to generate image light, and the light control device 12 controls the propagation direction of the light emitted by the light generating units, so that the light generated by each light generating unit 11 is reflected by the windshield 10 of the vehicle and then emitted to the eyebox area. Thus, users with both eyes in the eyebox area can view the image through the windshield of the vehicle without having to look down, thereby improving driving safety.

[0055] See Figure 1 and Figure 2 The vehicle display system includes multiple light control devices, each corresponding to a different light generating unit, and the light emitted from these multiple light control devices has a different propagation direction. This allows light to be projected onto the corresponding eye area.

[0056] For example, the light control device is used to regulate the propagation direction of the light emitted by the light generating unit, so that the light generated by each of the light generating units is reflected by the vehicle's windshield and then emitted to the eye box area in the driver's position and the eye box area in the non-driver's position. This allows both the driver and non-driver to view information through the vehicle display system, and the information viewed by them can be the same or different. The following detailed description, in conjunction with specific embodiments and accompanying drawings, illustrates how the light generating unit and the light control device in this multi-view vehicle display system achieve multi-view display.

[0057] For example, in a multi-view vehicle display system according to one embodiment, there are 1 to M groups of light generating units and 1 to M light control devices. The i-th light control device corresponds to the i-th group of light generating units. Each group of light generating units includes multiple light generating units. The 1 to M groups of light generating units generate the same image light or different image light. The i-th light control device is used to converge the light generated by each light generating unit in the i-th group of light generating units to the i-th eye box region after reflection by the windshield, where i∈[1,M], and M is a positive integer greater than or equal to 2. The 1 to M eye box regions are different eye box regions. The same image light means that the image light contains the same image content, and different image light means that the image light contains different image content.

[0058] Please refer to the examples. Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the multi-view vehicle display system of this embodiment, including two sets of light generating units and a light control device. Figure 3 for Figure 2 The schematic diagram of light propagation shown illustrates that the vehicle display system includes a first group of light generating units, a second group of light generating units, a first light control device 101, and a second light control device 102. The first and second groups of light generating units each include multiple light generating units 100. The first light control device 101 reflects the light generated by each light generating unit 100 in the first group of light generating units through the windshield 10 and projects it into the first eye-box region 131. The second light control device 102 reflects the light generated by each light generating unit 100 in the second group of light generating units through the windshield 10 and projects it into the second eye-box region 132, thereby projecting image light into the first and second eye-box regions respectively. Figure 2 and Figure 3The vehicle display system shown is illustrated using an example comprising two sets of light generating units and two light control devices. It is understood that in practical applications, this is based on... Figure 2 and Figure 3 Following the same principle, this vehicle display system may include other light generating units and light control devices to achieve multi-view display that meets the requirements of practical applications.

[0059] In another embodiment of the multi-view vehicle display system, there are multiple light generating units, a light control device, and a control device. The multiple light generating units are used to generate image light rays. The light control device is specifically used to expand the image light rays generated by the multiple light generating units into N light diffusion areas with different propagation directions, so that each light diffusion area is reflected by the windshield and converges into N different eye box areas, where N is a positive integer greater than or equal to 2.

[0060] The light control device can expand the incident light into N light diffusion regions with different propagation directions, and the light in each light diffusion region carries image information. For an example, please refer to... Figure 4 , Figure 4 This diagram illustrates the light control device of the multi-view vehicle display system in this embodiment, which expands the light into two light diffusion regions. As shown, the light control device 12 expands the incident light into two light diffusion regions 200 and 201. Light diffusion region 200 is reflected by the windshield 10 and converges to the first eyepiece region, while light diffusion region 201 is reflected by the windshield 10 and converges to the second eyepiece region, thus projecting image light into the first and second eyepiece regions respectively. In practical applications, the number and shape of the expanded light diffusion regions can be determined according to actual application requirements. This embodiment does not impose specific limitations. However, by optically designing the light control device, the number and shape of the expanded light diffusion regions can be changed.

[0061] In the above embodiments, multiple light generating units are arranged according to a preset rule, and image light is generated by multiple light generating units. Preferably, in order to balance the light utilization rate and space utilization rate, the light generating units can be arranged in a completely compact stacking manner. When the arrangement shape of the light generating units is a rectangle or hexagon (preferably a regular hexagon) or a triangle (preferably an equilateral triangle), a completely compact stacking arrangement can be achieved.

[0062] The light-generating unit can be an electroluminescent device, such as a light-emitting diode (LED), incandescent lamp, laser, quantum dot light source, etc. Specifically, it can be an organic light-emitting diode (OLED), a mini LED, a micro LED, a cold cathode fluorescent lamp (CCFL), an electroluminescent display (ELD), a cold LED light (CLL), an electroluminescent (EL) light source, a field emission display (FED), a halogen tungsten lamp, a metal halide lamp, etc. LEDs are preferably used as the light-generating unit. Multiple LEDs are closely arranged, and image light is generated by controlling the brightness and color of each LED. In a specific implementation, this can be an LED display, with the light control device located on the LED display module.

[0063] The optical structure of the light control device of this multi-view vehicle display system will be further described below with reference to specific embodiments and accompanying drawings.

[0064] Please refer to Figure 5 , Figure 5 This is a schematic diagram of a light control device according to one embodiment. As shown in the figure, the light control device includes a first optical unit 301. The first optical unit 301 is used to control the principal optical axis direction of the light emitted by the light generating unit 300, so that the light emitted by each of the light generating units 300 is reflected by a preset surface and converges to the eye box area, wherein the preset surface includes the windshield of a vehicle. The principal optical axis direction of the light refers to the main direction representing the overall propagation direction of the light.

[0065] Specifically, the first optical unit 301 may employ a direction control element, which corresponds to one or more light generating units 300. The direction control element is used to adjust the main optical axis direction of the light generated by the light generating unit 300, so that the light converges to a preset position 310, and the light converges to the eye box area after being reflected by a preset surface.

[0066] Optionally, the direction control element may include a concave surface that serves as a reflective surface, with the light generating part 300 located within the area enclosed by the concave surface. Specifically, the direction control element may be a substrate with an inner concave surface, the plane containing the light generating part 300 being tangent to the inner concave surface of the substrate. By adjusting the shape of the substrate, the direction of the principal optical axis of the light generating part 300 can be adjusted, thereby achieving a converging function. Optionally, the direction control element may include a lens whose optical axis forms an angle with the principal optical axis of the light emitted by the corresponding light generating part, and the orientation of the lens's optical axis can be used to adjust the principal optical axis of the light emitted by the light generating part.

[0067] Please refer to Figure 6 , Figure 6 This is a schematic diagram of a light control device according to another embodiment. As shown in the figure, the light control device includes a first optical unit and a second optical unit 402. The first optical unit is used to adjust the direction of the main optical axis of the light emitted by the light generating unit 400, so that the light emitted by each light generating unit 400 is reflected by a preset surface and converges to the eye box area. The preset surface includes the windshield of a vehicle. The second optical unit 402 is used to converge the light emitted by the first optical unit, so that the light is reflected by the preset surface and converges to the eye box area. Specifically, the second optical unit 402 can be located on the side of the first optical unit away from the light generating unit 400, and converges the light emitted by each light generating unit 400 to the same preset position 410, which can further improve the brightness of the light source.

[0068] Preferably, the light control device may further include a collimating element 404 corresponding to the light generating unit 400. The collimating element 404 may correspond to one or more light generating units 400, and is used to adjust the emission direction of the light emitted by the corresponding light generating unit 400 to a preset angle range. Optionally, the collimating element 404 may be a collimating lens or a collimating film. The collimating lens may be one or more of a convex lens, a Fresnel lens, or a combination of lenses. The lens combination may be, but is not limited to, a combination of a convex lens and a concave lens, or a combination of a Fresnel lens and a concave lens. When the collimating element 404 is a convex lens, the light generating unit 400 may be positioned at the focal length of the convex lens, i.e., the distance between the convex lens and the light generating unit is the focal length of the convex lens, so that light rays emitted from the light generating unit 404 in different directions can be emitted in parallel after passing through the collimating element 404. The collimating element 404 can be a collimating film, such as a BEF film (Brightness Enhancement Film), used to adjust the outgoing direction of light to a preset angle range, such as focusing the light within an angle range of ±35° of the collimating film normal.

[0069] Furthermore, when the first or second optical unit 402 is used to focus the light, although the brightness of the light-emitting image source is very high, the image size is small and the viewing area is small, making it unsuitable for multiple viewers. Therefore, please refer to... Figure 6 The light control device may further include a third optical unit 403, which is used to expand the light to control the divergence angle and / or propagation direction of the light, and guide the light emitted from the second optical unit 402 to be incident on a preset surface. Optionally, the third optical unit 403 may be a diffraction element, such as a beam shaper. The size and shape of the light spot after the third optical unit 403 expands the light are determined by the microstructure of the beam shaper. The preset shape of the light spot includes, but is not limited to, a circle, an ellipse, a square, a rectangle, or a batwing shape. The third optical unit 403 diffuses the light emitted from the light generating unit 400 and forms a light spot 411, thereby facilitating the observer to view the image source imaging over a large area.

[0070] The following describes in detail the specific implementation of the multi-view vehicle display system for displaying images from multiple perspectives, in conjunction with the accompanying drawings.

[0071] Specifically, the multi-view vehicle display system also includes a data acquisition device for acquiring vehicle driving information. This driving information includes, but is not limited to, various vehicle operating data, external scene environment, or navigation data. For example, the data acquisition device for measuring vehicle speed may include a speed sensor installed on the vehicle, a wheel rotation sensor, or a speed measurement function built into the user's mobile communication device. The data acquisition device can also be an On-Board Diagnostics (OBD) system or a driver assistance device installed in the vehicle, such as a dashcam or radar detector. The data acquisition device for acquiring external scene information may include, but is not limited to, image sensors, infrared sensors, distance sensors, lidar, or millimeter-scale radar, primarily used to acquire distance information between the vehicle and surrounding vehicles, road environment, various traffic signs, and pedestrians. These data acquisition devices can be installed externally or internally within the vehicle, and the number of devices installed is unlimited, but multiple devices are preferably installed on the vehicle. The data acquisition device also includes a navigation system capable of acquiring vehicle navigation data, vehicle route, vehicle geographical location, or traffic flow and congestion conditions on various road sections. The data acquisition device may also include a V2X (Vehicle to everything) system, which is used to communicate with the cloud platform and obtain non-local traffic condition data from the cloud platform. The information obtained includes, but is not limited to, the status of vehicles, pedestrians, and non-motorized vehicles on the road, or road congestion, or various traffic sign information on the road, including traffic light data at intersections.

[0072] In this multi-view vehicle display system, the control device controls at least one of the light generating unit and the light control device to project image light containing image content that corresponds to the position of each eye-box area, based on the vehicle status and the priority of the generated information. Specifically, projecting image light containing image content that corresponds to the position of each eye-box area means that the image observed through different eye-box areas meets the needs of driving and the user of each eye-box area. For example, the image content observed in the driver's eye-box area should be information closely related to driving, such as vehicle speed and navigation, while the image content observed in the passenger's eye-box area can be less important information such as social media information and entertainment information, ensuring that the image observed in each eye-box area meets the needs and does not affect normal driving.

[0073] The higher the priority of information, the more important that information is to safe driving or the user. Specifically, the control device includes: an evaluation module for evaluating the priority of the generated information; and a judgment module, connected to the data acquisition device, for determining the vehicle's status based on the vehicle's driving information. The evaluation module can specifically determine the type and importance of the generated information, and assess the priority of the generated information based on its type and importance.

[0074] The determination module is connected to the acquisition device and can be connected wirelessly via WiFi, signal transmission, Bluetooth, ZigBee, optical communication, etc., to achieve communication connection and data transmission; it can also be connected via wired means such as data cable to achieve data transmission, and the present invention does not limit this.

[0075] For details, please refer to Figure 7 The method for controlling the projection of image light containing image content that corresponds to the location of the eye box area onto each eye box area according to the vehicle status and the priority of the generated information includes the following steps:

[0076] S500: Determine whether a start command for starting the display screen has been obtained. If so, proceed to step S501. Optionally, the vehicle display system can be started manually by the user, or it can be started automatically when the vehicle's engine is detected to be starting.

[0077] S501: Determine whether the vehicle's stopping time exceeds the corresponding set threshold. If so, proceed to step S502. By determining whether the vehicle's stopping time exceeds the corresponding set threshold, the system monitors whether the vehicle is in a stopped state. If the vehicle's stopping time exceeds the corresponding set threshold, it is determined that the vehicle is in a stopped state.

[0078] S502: Determine whether a first display instruction for indicating the driver's location and a second display instruction for indicating the non-driver's location have been obtained; otherwise, proceed to step S503.

[0079] S503: Control the projection of image light containing a display option operation interface onto the eye box area in the driver's position and the eye box area in the non-driver's position, respectively. The display option operation interface includes a first information option, a second information option, a third information option, or a fourth information option. The user selects any information option to control the projection of image light containing the content corresponding to the selected information onto the eye box area.

[0080] If no first display command is received to instruct the display content for the driver's location and no second display command is received to instruct the display content for the non-driver's location, it indicates that the user has not yet selected the information to be displayed. In this case, a display option interface is projected onto the camera lens area in the driver's position and the camera lens area in the non-driver's position, respectively, allowing the user to select the desired information. Specifically, the user includes the driver and passengers in the vehicle.

[0081] In one implementation, the generated information is divided into first information, second information, third information, or fourth information, with the priority of the first information, second information, third information, and fourth information decreasing sequentially.

[0082] Optionally, the first information may be vehicle-related information data used to assist the driver in controlling the vehicle. Specifically, it may include vehicle operating data and warning information when the vehicle operating data exceeds the corresponding safe range. Vehicle operating data includes, but is not limited to, vehicle speed, driving direction, driving lane, geographical location, fuel or battery level, total driving time, total driving distance, forward visibility, and distance between the vehicle and adjacent vehicles. Optionally, the first information may also include warning information triggered when the vehicle's operating scenario matches a preset emergency scenario. The preset emergency scenario is a pre-set scenario that may suddenly occur during vehicle operation that is detrimental to safe driving. For example, the preset emergency scenario may include a pedestrian entering the vehicle's current driving lane, another vehicle illegally changing into the current driving lane, or a vehicle behind driving at an abnormal speed, but it is not limited to these. The preset emergency scenario in this embodiment may also be other situations that may suddenly occur during vehicle operation that are detrimental to safe driving. Optionally, the first information may also include prompts triggered by the vehicle's operating scenario being an unexpected situation. An unexpected situation refers to an unforeseen situation that the vehicle may encounter. Such an unexpected situation is not preset in the vehicle, but it will affect safe driving and requires the user's attention. Specific unexpected situations may include rocks falling from a mountain road ahead, a bridge section suddenly collapsing, an accident occurring on the road ahead, or obstacles suddenly appearing on the road.

[0083] Optionally, the second information may include navigation map information, navigation prompts, or planned route information. The third information may include instant messaging information related to the user, which may include, but is not limited to, voice calls, video calls, text messages, social media messages, or email messages. The fourth information may include entertainment information, which may include, but is not limited to, audio playback, video playback, and other information used for entertainment.

[0084] Users can choose the information they want to view and the type of information to be displayed on their location through the interface displayed on the vehicle's windshield. Correspondingly, based on the user's selection, the control device projects an image onto the driver's or non-driver's viewing area, displaying the selected information in its primary display format. When the vehicle is parked, the driver does not need to focus on operating the vehicle. The system projects the interface onto both the driver's and non-driver's viewing areas, allowing either party to select the desired information. Options include vehicle-related data to assist driver operation, navigation maps, navigation prompts, planned routes, instant messaging, and entertainment content. For example, please refer to... Figure 8 , Figure 8 This is an embodiment of a windshield display image viewed from the eye-box area. Figure 8 In the scenario shown, the vehicle is temporarily stopped at an intersection waiting to pass. While waiting, the user chooses to view current affairs news. The vehicle display system then projects an image containing the news information onto the user through the windshield 10, and displays the news information in the key area in the center of the image.

[0085] S504: If a first display instruction is received to indicate the content of the display screen at the driver's location, then an image light is projected onto the eye box area at the driver's location to display the content corresponding to the information to be displayed as indicated by the first display instruction in the main display form. If a second display instruction is received to indicate the content of the display screen at a location other than the driver's location, then an image light is projected onto the eye box area at the non-driver's location to display the content corresponding to the information to be displayed as indicated by the second display instruction in the main display form.

[0086] If a first display instruction is received, indicating that the user has selected information to be displayed at the driver's location, then an image beam containing the corresponding information is projected onto the driver's eye area according to the first display instruction. If a second display instruction is received, indicating that the user has selected information to be displayed at a location other than the driver's location, then an image beam containing the corresponding information is projected onto the eye area of ​​the non-driver's location according to the second display instruction, thereby intelligently meeting the user's needs.

[0087] The primary display format refers to the way information is displayed so that users can quickly access or focus on it. Secondary display formats, compared to the primary format, allow users to access or focus on information more slowly. For an example, please refer to... Figure 8 The primary display format may include displaying information in key areas of the screen or displaying the information content in detail and clearly, such as displaying news information in detail in the key central area of ​​the screen shown on the windshield in the image. Secondary display formats may include displaying simplified content or displaying it briefly in the edge areas of the screen, such as... Figure 8 The image shown displays a warning message at the bottom of the screen: "Please note! Vehicles in the side lane are changing lanes."

[0088] Furthermore, in the vehicle display system of this embodiment, the control device is also specifically used to control the projection of image light onto the viewing area in the driver's position or the viewing area in the non-driver's position, displaying the content corresponding to the information generated that is not the type selected by the user in a secondary display form, when the vehicle is in a parked state. While the vehicle is parked, and the user is viewing the selected information content, some information that requires the user's immediate attention may appear; please refer to... Figure 8 For example, when a vehicle is stopped at an intersection waiting for pedestrians to cross, and the driver chooses to check news while waiting, but a vehicle from the adjacent lane changes into the driver's lane, requiring the driver's attention, the vehicle display system can display this information as a secondary element on the screen projected to the driver. Figure 8 The message "Attention! Vehicles changing lanes in the side lane" flashes at the bottom of the screen to remind drivers to pay special attention.

[0089] Furthermore, in the display system of this embodiment, the control device is also specifically used to switch the information content currently displayed in a secondary display format on the image screen to be displayed in a primary display format on the image screen according to the user's operation. When the vehicle is parked, while the user is viewing selected information content, some information that requires the user's immediate attention may appear. For example, if the driver selects to view news information while the vehicle is parked, but a vehicle from the side lane changes into the driver's lane, requiring the driver's attention, the vehicle display system can display this prompt information in a secondary display format on the screen projected to the driver. After noticing the prompt information, the driver can switch the prompt information displayed in a secondary display format to be displayed in a primary display format on the screen, allowing for a detailed and quick understanding of the information content.

[0090] Furthermore, in the vehicle display system of this embodiment, the control device is also specifically used to, if the vehicle is in a temporary stopped state during driving, and when the vehicle restarts driving, but the eye box area in the driver's position does not display the content corresponding to the first information or the content corresponding to the second information, control the projection of an image light that displays the content corresponding to the first information or the content corresponding to the second information in the primary display form onto the eye box area in the driver's position. For example, if the vehicle is in a temporary stopped state during driving, such as due to congestion ahead, and the driver chooses to watch entertainment information while waiting, once the vehicle can move forward, the vehicle display system can automatically switch the image screen projected onto the driver to display the content corresponding to the first information or the content corresponding to the second information, displaying vehicle-related information data, navigation map information, navigation prompts, or planned route information to assist the driver in controlling the vehicle. For example, after the vehicle starts driving, the screen displayed to the user no longer displays entertainment information, but instead displays... Figure 9 The image shown displays the vehicle's speed as 111 km / h, the maximum speed allowed in the current lane as 120 km / h, and the direction of travel indicated by arrows.

[0091] Furthermore, in the vehicle display system of this embodiment, the control device is specifically configured to, when the vehicle is in a parked state, switch the information displayed in the driver's viewing area to the non-driver's viewing area based on the user's operation in the driver's position, or switch the information displayed in the non-driver's viewing area to the driver's viewing area based on the user's operation in the non-driver's position. The user in the driver's position or the user in the non-driver's position can switch the information displayed in the driver's viewing area to the non-driver's viewing area as needed. For example, when the vehicle changes from a parked state to a running state, the driver can switch the entertainment information display content they were originally viewing to the non-driver's viewing area, allowing the user in the non-driver's position to view the entertainment information content.

[0092] Furthermore, preferably, based on the above embodiments, the control device is also used to control the light control device to zoom in and out on the content corresponding to the generated information on the screen according to user operation. For example, when a driver views navigation map information on the screen, they can zoom in or out on the displayed navigation map to better understand the navigation information.

[0093] Further preferably, based on the above embodiments, the vehicle display system also includes a monitoring device for monitoring the area where the user's gaze falls; the control device is further used to control the light control device to project image light onto the area where the user's gaze falls in real time. Specifically, the monitoring device can be an eye-tracking device, so that the vehicle display system can project image light onto the area where the user's gaze falls, avoiding the need for the driver to search for the image on the windshield, thus helping to improve driving safety.

[0094] In this multi-view vehicle display system, multiple light-generating units produce image light rays. A light control device regulates the propagation direction of the light rays emitted by the light-generating units, ensuring that the light rays from each unit are reflected by the vehicle's windshield and projected onto at least two viewing areas. This allows users with their eyes in the viewing areas to see the image through the windshield without needing to look down. Based on the vehicle's status and the priority of the generated information, the control device controls at least one of the light-generating units and the light control device to project image light rays containing image content corresponding to the location of each viewing area. This allows for the display of corresponding images to different viewing areas based on the vehicle's status and user needs. Furthermore, the displayed images and display formats can be flexibly switched between different viewing areas, ensuring driving safety and enhancing the driving / passenger experience.

[0095] The multi-view vehicle display system provided by this invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A multi-view display vehicle display system, characterized by, Includes multiple light generating units, light control devices, and control devices; Multiple light generating units are used to generate image light rays; The light control device is used to regulate the propagation direction of the light emitted by the light generating unit, so that the light emitted by each of the light generating units is emitted from the light control device and enters the windshield without being reflected by the curved mirror, and after being reflected by the windshield of the vehicle, it is emitted to at least two eye box areas. The control device is connected to the light generating unit and the light control device respectively, and is used to control at least one of the light generating unit and the light control device to project image light containing image content that matches the position of the eye box area to each eye box area according to the vehicle status and the priority of the generated information. The vehicle display system includes multiple light control devices, and different light control devices correspond to different light generating units, and the propagation direction of the light emitted by the multiple light control devices is different. The light control device includes a first optical part, a second optical part and a third optical part. The first optical part is used to adjust the main optical axis direction of the light emitted by the light generating part, so that the light generated by each light generating part is reflected by a preset surface and then emitted into the eye box area, wherein the preset surface includes the windshield of the vehicle. The second optical unit is used to converge the light emitted from the first optical unit, so that the light is reflected by the preset surface and emitted into the eye box area, and the light is converged to the same preset position; The third optical unit is used to expand the light to control the divergence angle and / or propagation direction of the light, and to expand the light emitted by the second optical unit and guide it to be incident on the preset surface.

2. The multi-view display vehicle display system of claim 1, wherein, It includes light generating units from the first to the Mth groups and light control devices from the first to the Mth groups. The i-th light control device corresponds to the i-th group of light generating units. Each group of light generating units includes multiple light generating units. The first to the Mth groups of light generating units generate the same image light or different image light, respectively. The i-th light control device is used to converge the light generated by each light generating part of the i-th group of light generating parts to the i-th eye box region after being reflected by the windshield, i∈[1,M], where M is a positive integer greater than or equal to 2, and the 1st to Mth eye box regions are different eye box regions.

3. The multi-view display vehicle display system of claim 1 or 2, wherein, The light control device is used to regulate the propagation direction of the light emitted by the light generating unit, so that the light generated by each of the light generating units is reflected by the windshield of the vehicle and then emitted to the eye box area in the driver's position and the eye box area in the non-driver's position.

4. The multi-view display vehicle display system of claim 1, wherein, At least some of the multiple light generating units are arranged according to a preset rule, and image light is generated by the multiple light generating units.

5. The multi-view display vehicle display system of claim 4, wherein, The light-generating parts are arranged in at least one of rectangular, hexagonal, and triangular shapes.

6. The multi-view display vehicle display system of claim 4, wherein, The light-generating parts are arranged in at least one of regular hexagons and equilateral triangles.

7. The multi-view display vehicle display system of claim 1, wherein, It also includes a data acquisition device for obtaining vehicle driving information; The control device includes: The evaluation module is used to assess the priority of the generated information. The higher the priority of the information, the more important the information is to safe driving or the user. The determination module, connected to the acquisition device, is used to determine the vehicle status based on the vehicle's driving information.

8. The multi-view display vehicle display system of claim 1, wherein, The generated information is divided into first information, second information, third information, or fourth information according to the priority of attention, with the priority of the first information, second information, third information, and fourth information decreasing in that order. The control device is specifically used to project image light containing a display option operation interface onto the eye box area in the driver's position and the eye box area in the non-driver's position when the vehicle is parked. The display option operation interface includes a first information option, a second information option, a third information option, or a fourth information option. The user can select any information option to control the projection of an image containing the content corresponding to the selected information onto the eye box area.

9. The multi-view display vehicle display system of claim 8, wherein, The control device is specifically used to, when the vehicle is parked, control the projection of image light onto the eye box area in the driver's position or the eye box area in the non-driver's position, displaying the content corresponding to the information selected by the user in the main display form.

10. The multi-view display vehicle display system of claim 8, wherein, The control device is specifically used to, when the vehicle is parked, control the projection of image light onto the eye box area in the driver's position or the eye box area in the non-driver's position, displaying the content corresponding to the information generated by the non-user-selected type in a secondary display form.

11. The multi-view display vehicle display system of claim 10, wherein, The control device is specifically used to switch the information content that is displayed in a secondary display form in the current image screen to be displayed in a primary display form in the image screen according to the user's operation.

12. The multi-view display vehicle display system of claim 1, wherein, The generated information is divided into first information, second information, third information, or fourth information according to the priority of attention. The priority of the first information, the second information, the third information, and the fourth information decreases in that order. The first information includes vehicle operation data, and the second information includes vehicle navigation map information, navigation prompt information, or planned route information. The control device is specifically used to, if the vehicle is in a temporary stopped state during driving, and when the vehicle restarts driving, but the eye box area in the driver's position does not display the content corresponding to the first information or the content corresponding to the second information, then control the projection of image light that displays the content corresponding to the first information or the content corresponding to the second information in the main display form onto the eye box area in the driver's position.

13. The multi-view display vehicle display system of claim 8, wherein, The control device is specifically used to, when the vehicle is in a parked state, switch the information displayed in the driver's position eye-viewing area to the non-driver's position eye-viewing area according to the operation of the user in the driver's position, or switch the information displayed in the non-driver's position eye-viewing area to the driver's position eye-viewing area according to the operation of the user in the non-driver's position.

14. The multi-view display vehicle display system of claim 1, wherein, It also includes a monitoring device for monitoring the area where the user's line of sight falls; The control device is also used to control the light control device to project image light in real time onto the area where the user's line of sight falls.

15. The multi-view display vehicle display system of claim 1, wherein, The control device is specifically used to control the light control device to scale the content corresponding to the generated information on the screen according to the user's operation.

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