Vehicle-mounted projection imaging system, display system and vehicle

Abstract

The embodiment of the invention provides a vehicle-mounted projection imaging system, a display system and a vehicle, and relates to the technical field of automotive electronics. The vehicle-mounted projection imaging system comprises a first projection unit and a second projection unit, the first projection unit is used for forming a first projection area on a front windshield, the second projection unit is used for projecting image information into the first projection area, and the first projection area is a dark background area. According to the embodiment of the invention, light interference caused by a transparent front windshield and external ambient light can be overcome, so that the second projection unit can form clear image information in the first projection area.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile electronics, and in particular to a vehicle-mounted projection imaging system, a display system and a vehicle. BACKGROUND

[0002] An electronic outside rearview mirror (CMS) can display image information on a front windshield of a vehicle through a head-up display system (HUD) to change the position of image display, so that a driver can conveniently obtain the image information.

[0003] The front windshield is transparent glass, and the external ambient light changes dramatically, which makes it difficult to clearly display the image information on the front windshield, affecting the observation and judgment of the driver, and there is a safety hazard. SUMMARY

[0004] The present application provides a vehicle-mounted projection imaging system, a display system and a vehicle, which can solve the problem that image information is difficult to clearly display on the front windshield.

[0005] The first aspect of the present application provides a vehicle-mounted projection imaging system, comprising:

[0006] a first projection unit configured to form a first projection area on the front windshield;

[0007] and a second projection unit configured to project image information into the first projection area,

[0008] wherein the first projection area is a dark background area.

[0009] According to the vehicle-mounted projection imaging system of the first aspect of the present application, the first projection unit can form a first projection area on the front windshield, and the first projection area is a dark background area. The first projection area can overcome the light interference caused by the transparent front windshield and the external ambient light, so that the second projection unit can form clear image information in the first projection area.

[0010] In one possible implementation, the first projection area is a dark gray area or a black area.

[0011] In one possible implementation, the first projection area is a rectangular area.

[0012] In one possible implementation, the transparency of the first projection area is adjustable.

[0013] In one possible implementation, the vehicle-mounted projection imaging system further comprises an ambient light sensor and a control unit. The ambient light sensor is configured to monitor the illumination intensity of the ambient light, and the control unit is configured to adjust the transparency of the first projection area according to the illumination intensity.

[0014] In a possible implementation, the first projection unit and the second projection unit are integrated,

[0015] Or, the first projection unit and the second projection unit are two independent devices.

[0016] In a possible implementation, the vehicle-mounted projection imaging system further includes an optical path assembly arranged on an optical path between the first projection unit and the front windshield and / or on an optical path between the second projection unit and the front windshield, and configured to adjust the size and position of the first projection area and / or the image information.

[0017] In a possible implementation, the optical path assembly includes a reflection lens set, the reflection lens set includes a first reflection lens and a second reflection lens, the first reflection lens is a plane mirror, the second reflection lens is a curved mirror, and the first reflection lens and the second reflection lens are arranged on the optical path between the first projection unit and the front windshield and / or on the optical path between the second projection unit and the front windshield in sequence.

[0018] The second aspect of the present application provides a display system, comprising:

[0019] an image acquisition unit configured to acquire image information outside a vehicle;

[0020] an image processing unit electrically connected to the image acquisition unit and configured to process the image information;

[0021] and a vehicle-mounted projection imaging system electrically connected to the image processing unit, a first projection unit in the vehicle-mounted projection imaging system being configured to form a first projection area on a front windshield, and a second projection unit in the vehicle-mounted projection imaging system being configured to project image information processed by the image processing unit into the first projection area.

[0022] According to the display system provided in the second aspect of the present application, the image acquisition unit can acquire image information outside the vehicle, the image processing unit can process the image information, and the vehicle-mounted projection imaging system can form a first projection area on the front windshield and project the processed image information into the first projection area. Since the first projection area is a dark background area, the contrast between the image information and the first projection area is improved, the light interference caused by the transparent front windshield and the external environmental light is overcome, the image information can be clearly displayed in the first projection area, so that the driver can accurately and quickly acquire the image information, visual fatigue is avoided, and the driving safety is improved.

[0023] The third aspect of the present application provides a vehicle comprising a display system. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the present application.

[0025] Figure 1 A schematic diagram of a display system according to an embodiment of the present application is shown;

[0026] Figure 2 A schematic diagram of a display system according to an embodiment of the present application is shown;

[0027] Figure 3 A schematic diagram of a vehicle-mounted projection imaging system according to an embodiment of the present application is shown.

[0028] Reference signs:

[0029] 100 - first projection unit; 101 - first projection area;

[0030] 200 - second projection unit; 201 - image display area;

[0031] 300 - overall housing;

[0032] 400 - optical path assembly; 410 - first reflecting lens; 420 - second reflecting lens;

[0033] 10 - image acquisition unit;

[0034] 30 - vehicle-mounted projection imaging system;

[0035] 1000 - front door panel;

[0036] 2000 - front windshield.

[0037] The above drawings have shown the specific embodiments of the present application, which will be described in more detail hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0038] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0039] With the development of automobile electronic technology, an electronic outside rearview mirror can be applied in a vehicle to obtain image information outside the vehicle. The electronic outside rearview mirror realizes its function by means of a camera on the outside of the vehicle collecting image information outside the vehicle and displaying the image information in a display screen. Compared with a traditional optical mirror, the image information collected by the electronic outside rearview mirror can be displayed in a display screen inside the vehicle, which can be arranged on a front pillar or a door panel of the vehicle. On the one hand, this can facilitate the driver to quickly obtain image information. On the other hand, this can also avoid arranging a rearview mirror structure with a certain size on the outside of the vehicle, which can reduce wind resistance and improve the driving field of view.

[0040] A head-up display system can project relevant image information onto the front windshield of the vehicle. The image information can be, for example, a vehicle speed interface or a navigation interface, so that the image information can be displayed in front of the line of sight of the driver, so that the driver can view the relevant information without lowering his head, thereby improving the safety of driving and the driving comfort of the driver.

[0041] In the related art, the combination of an automobile electronic rearview mirror and a head-up display system has been initially realized. For example, the image information obtained by the electronic outside rearview mirror can be displayed on the front windshield of the vehicle by the head-up display system, so that a display screen for the electronic rearview mirror can be avoided, and the driver can obtain the image information collected by the automobile electronic rearview mirror without turning his head or lowering his head during driving.

[0042] In the above scenario in which the automobile electronic rearview mirror and the head-up display system are combined, because the front windshield is transparent glass, the external environment light changes dramatically, and is in a strong light state during the day and in a weak light state at night, which results in that the image information displayed on the front windshield is not clear enough. Especially in the strong light state, glare is easily generated due to high brightness and insufficient contrast, thereby affecting the observation and judgment of the driver, and there is a safety hazard.

[0043] Based on the above status and problems, the embodiments of the present application provide a vehicle-mounted projection system to improve the clarity of image information displayed on the front windshield.

[0044] To achieve the above object, the vehicle-mounted projection system comprises a first projection unit and a second projection unit, wherein the first projection unit is configured to form a first projection area on the front windshield, and the second projection unit is configured to project image information into the first projection area, and the first projection area is a dark background area.

[0045] It can be understood that, due to the formation of the first projection area on the front windshield, the first projection area is a dark background area, and the light interference caused by the transparent glass and the external environment light can be overcome, so that the image information can be clearly displayed in the first projection area.

[0046] Based on the vehicle-mounted projection imaging system, the embodiment of the present application further provides a display system, which can display image information of an electronic outside rearview mirror and clearly project the image information onto the front windshield, so as to facilitate the driver to accurately and clearly obtain the image information, thereby improving the driving safety.

[0047] In addition, the embodiment of the present application further provides a vehicle comprising the display system, which can improve the driving safety and the driving comfort of the driver.

[0048] The following embodiments will make a clear and complete description of the technical schemes in the embodiments of the present application in conjunction with the drawings.

[0049] Figure 1 Fig. 1 shows a schematic diagram of a display system according to an embodiment of the present application; Figure 2 Fig. 2 shows a schematic diagram of a display system according to an embodiment of the present application.

[0050] In the embodiments of the present application, please refer to Figure 1 , the display system comprises an image acquisition unit 10, an image processing unit and a vehicle-mounted projection imaging system 30.

[0051] The image acquisition unit 10 can be arranged on the outside of the vehicle, for example, the image acquisition unit 10 can be arranged on the front door panel 1000 of the vehicle, and the image acquisition unit 10 is configured to acquire image information of the outside of the vehicle.

[0052] Here, the image information can be image information of the side of the vehicle, or image information of the rear of the vehicle.

[0053] The image acquisition unit 10 can adopt a camera, and the number of cameras can be set according to requirements, and here the camera can be a camera configured by an electronic outside rearview mirror.

[0054] The image processing unit can be electrically connected to the image acquisition unit 10, and the image information acquired by the image acquisition unit 10 can be transmitted to the image processing unit. The image processing unit can process the image information, for example, image enhancement, distortion correction and the like.

[0055] The specific type of the image processing unit can be selected according to actual needs. In addition to the above-mentioned image enhancement and distortion correction, the image processing unit can also be configured with functions such as denoising, edge detection and target detection.

[0056] The vehicle-mounted projection imaging system 30 is electrically connected to the image processing unit, and the image information processed by the image processing unit can be transmitted to the vehicle-mounted projection imaging system 30. The vehicle-mounted projection imaging system 30 can project the image information onto the front windshield 2000.

[0057] Specifically, the first projection unit 100 in the vehicle-mounted projection imaging system 30 is used to form a first projection area 101 on the front windshield 2000, and the second projection unit 200 in the vehicle-mounted projection imaging system 30 is used to project the image information processed by the image processing unit into the first projection area 101. The first projection area 101 is a dark background area.

[0058] It can be understood that, because the first projection area 101 is formed on the front windshield 2000, the image information can use the first projection area 101 as a display substrate to display the image information. Because the first projection area 101 is a dark background area, the contrast between the image information and the first projection area 101 is improved, the light interference caused by the transparent front windshield 2000 and the external environmental light can be overcome, and the image information can be clearly displayed in the first projection area 101.

[0059] In the embodiments of the present application, the image acquisition unit 10 can acquire image information outside the vehicle, the image processing unit can process the image information, and the vehicle-mounted projection imaging system 30 can form a first projection area 101 on the front windshield 2000 and project the processed image information into the first projection area 101. Because the first projection area 101 is a dark background area, the contrast between the image information and the first projection area 101 is improved, the light interference caused by the transparent front windshield 2000 and the external environmental light can be overcome, and the image information can be clearly displayed in the first projection area 101. Therefore, the driver can accurately and quickly obtain the image information, avoid visual fatigue, and improve the driving safety.

[0060] In the embodiments of the present application, please refer to Figure 2 The vehicle-mounted projection imaging system 30 includes a first projection unit 100 and a second projection unit 200.

[0061] The first projection unit 100 is used to form a first projection area 101 on the windshield 2000, and the second projection unit 200 is used to project image information into the first projection area 101.

[0062] The embodiments of this application do not limit the types of the first projection unit 100 and the second projection unit 200. For example, the first projection unit 100 can be a DLP projector or a laser projector, and the second projection unit 200 can also be a DLP projector or a laser projector.

[0063] In this embodiment, the first projection area 101 is a dark background area, which can serve as a display substrate for image information. Image information can be displayed in the first projection area. For ease of description, please refer to... Figure 3 The area that will display image information is defined as image display area 201.

[0064] In this embodiment of the application, since the first projection unit 100 can form a first projection area 101 on the windshield 2000, and the first projection area 101 is a dark background area, the first projection area 101 can overcome the light interference caused by the transparent windshield 2000 and the ambient light, so that the second projection unit 200 can form clear image information in the first projection area 101.

[0065] In some embodiments, the first projection area 101 is a dark gray area or a black area.

[0066] As described above, the first projection area 101 is the display area for image information. By setting the first projection area 101 to a dark gray or black area, most of the ambient light (sunlight, car headlights, etc.) can be absorbed, the background brightness can be reduced, and the glare caused by excessive brightness or insufficient contrast can be eliminated, thus achieving the display effect of image information under different lighting conditions.

[0067] In some embodiments, reference may be made to Figure 2 The first projection area 101 is a rectangular area.

[0068] Understandably, the size of the rectangular area can be adjusted according to actual needs, and the position of the rectangular area can also be adjusted according to actual needs.

[0069] For example, in Figure 2 In the example shown, the rectangular area can be located at the lower left corner of the windshield 2000.

[0070] It can be understood that different drivers have different heights, so that different drivers have different positions to the front windshield 2000 in daily life, and therefore, the position and size of the rectangular region can be reasonably adjusted to adapt to the work habits of drivers of different heights.

[0071] In the above embodiment, by setting the first projection region 101 as a rectangular region, a display region similar to a display screen can be formed on the front windshield 2000, which can improve the adaptation of the driver to the first projection region 101, and the existence of the first projection region 101 does not affect the visual experience of the driver.

[0072] In some embodiments, to adapt to different intensity of ambient light, the vehicle-mounted projection imaging system 30 further comprises an ambient light sensor and a control unit, the ambient light sensor is used to monitor the intensity of the ambient light, and the control unit is used to adjust the transparency of the first projection region 101 according to the intensity of the light.

[0073] The ambient light sensor can be arranged outside the vehicle, and the intensity of the light monitored by the ambient light sensor can be transmitted to the control unit, and the control unit can adjust the transparency of the first projection region 101 according to the intensity of the light.

[0074] For example, in a strong light environment during the day, the control unit can control the transparency of the first projection region 101 to be relatively low, so as to maintain the contrast between the image information and the first projection region 101, thereby maintaining the clarity of the image information. For another example, in a weak light environment at night, the control unit can control the transparency of the first projection region to be relatively high, so as to maintain the contrast between the image information and the first projection region 101, thereby maintaining the clarity of the image information.

[0075] In some embodiments, the first projection unit 100 and the second projection unit 200 are integrated, so that the overall structure of the vehicle-mounted projection imaging system 30 can be simplified, and the first projection unit 100 and the second projection unit 200 can be arranged at the same position in the vehicle during installation and layout, so that the vehicle-mounted projection imaging system 30 is more compact in structure and the installation and layout are relatively simple.

[0076] To realize the integrated design of the first projection unit 100 and the second projection unit 200, the vehicle-mounted projection imaging system 30 can be configured with an overall housing 300, and then the first projection unit 100 and the second projection unit 200 are arranged in the overall housing 300.

[0077] It can be understood that, to realize the respective functions of the first projection unit 100 and the second projection unit 200, the first projection unit 100 and the second projection unit 200 can be driven by different light sources and imaging chips respectively.

[0078] Specifically, the first projection unit 100 may include a first light source and a first imaging chip, and the second projection unit 200 may include a second light source and a second imaging chip.

[0079] The first light source can be an LED light source or a laser light source, the first imaging chip can be a DMD chip or an LCOS chip, the second light source can be an LED light source or a laser light source, and the second imaging chip can be a DMD chip or an LCOS chip.

[0080] Based on the overall housing 300 described above, it can be understood that two receiving cavities can be divided within the overall housing 300. One receiving cavity can house the first light source and the first imaging chip, while the other receiving cavity can house the second light source and the second imaging chip.

[0081] In some embodiments, the first projection unit 100 and the second projection unit 200 are two independent devices.

[0082] The above embodiments can solve the problem of optical path interference. Specifically, the first projection unit 100 and the second projection unit 200 adopt independent light sources and imaging chips, and the two can form independent optical paths. Since the two optical paths are independent, the characteristic of the first projection area 101 formed by the first projection unit 100 to absorb ambient light will not interfere with the light intensity distribution of the second projection unit 200, which can ensure the clarity of image information details.

[0083] Furthermore, since the first projection unit 100 and the second projection unit 200 are two independent devices, the first projection unit 100 and the second projection unit 200 can be installed in the vehicle separately, and the placement of the first projection unit 100 and the second projection unit 200 is relatively flexible.

[0084] Figure 3 A schematic diagram of an in-vehicle projection imaging system 30 provided according to an embodiment of this application is shown.

[0085] In some embodiments, please refer to Figure 3 The vehicle-mounted projection imaging system 30 also includes an optical path component 400, which is disposed on the optical path between the first projection unit 100 and the windshield 2000 and / or on the optical path between the second projection unit 200 and the windshield 2000. The optical path component 400 is used to adjust the size and position of the first projection area 101 and / or image information.

[0086] It can be understood that, due to the arrangement of the light path assembly 400, the specific arrangement positions of the first projection unit 100 and the second projection unit 200 can be changed by reasonable configuration of the light path assembly 400. For example, the first projection unit 100 and the second projection unit 200 can be arranged at a lower position in the vehicle, and through the light transmission of the light path assembly 400, the image information can be displayed at a proper position on the front windshield 2000.

[0087] As described above, the first projection unit 100 and the second projection unit 200 have two construction modes. The first mode is the integrated design of the first projection unit 100 and the second projection unit 200, and the second mode is the independent arrangement of the first projection unit 100 and the second projection unit 200. The arrangement of the light path assembly 400 will be described in detail in the following two modes.

[0088] In the first mode, referring to Figure 3 , the first projection unit 100 and the second projection unit 200 are integrated, wherein the first projection unit 100 is away from the front windshield 2000, and the second projection unit 200 is close to the front windshield 2000. Thus, the light path between the first projection unit 100 and the front windshield 2000 can be lengthened, and the area of the first projection region 101 can be increased. The light path between the second projection unit 200 and the front windshield 2000 is relatively short, and the area of the display region of the image information can be reduced. This cooperation can make the image information fall in the first projection region 101, and facilitate clear and complete display of details of the image information.

[0089] It can be understood that the light path assembly 400 can also form different light paths for the first projection unit 100 and the second projection unit 200. For example, the part of the light path assembly 400 corresponding to the first projection unit 100 can adopt a lens structure with high refractive index, and the part corresponding to the second projection unit 200 can adopt a lens structure with low refractive index. Thus, the first projection unit 100 can enlarge the first projection region 101 on the front windshield 2000, and the display region of the image information is relatively small.

[0090] In the second mode, the first projection unit 100 and the second projection unit 200 can be arranged together. For example, the first projection unit 100 and the second projection unit 200 are adjacent, and the first projection unit 100 is away from the front windshield 2000, and the second projection unit 200 is close to the front windshield 2000. In this case, the light path assembly 400 can be arranged according to the first mode.

[0091] In another scenario within the second mode, the first projection unit 100 and the second projection unit 200 can be positioned at different locations within the vehicle. For example, the first projection unit 100 can be located on the left side of the vehicle, and the second projection unit 200 can be located on the right side. In this case, a first optical path component 400 can be provided for the first projection unit 100, and a second optical path component 400 can be provided for the second projection unit 200. It is understood that the common purpose of the first optical path component 400 and the second optical path component 400 is to form a first projection area 101 at the same location on the windshield 2000 and to display image information in the first projection area 101. Therefore, depending on the different positions of the first projection unit 100 and the second projection unit 200, the first optical path component 400 and the second optical path component 400 can adopt different structural compositions and positioning.

[0092] In addition, in another case of the second mode, an optical path component 400 can be provided for one of the first projection unit 100 and the second projection unit 200. For example, an optical path component 400 can be provided for the first projection unit 100 to lengthen the optical path between the first projection unit 100 and the windshield 2000, thereby facilitating the formation of a larger first projection area 101. The second projection unit 200 can project image information into the first projection area 101 without configuring the optical path component 400.

[0093] This application does not limit the specific structure of the optical path component 400 in its embodiments. Figure 3 In the example shown, the optical path assembly 400 may include a reflective lens group, which includes a first reflective lens 410 and a second reflective lens 420. The first reflective lens 410 is a plane mirror, and the second reflective lens 420 is a curved mirror. The first reflective lens 410 and the second reflective lens 420 are sequentially arranged in the optical path between the first projection unit 100 and the windshield 2000 and / or in the optical path between the second projection unit 200 and the windshield 2000.

[0094] Specifically, the number of first reflective lenses 410 can be one or more, and the number of second reflective lenses 420 can be one or more. For the sake of simplicity, we will take setting one first reflective lens 410 and setting one second reflective lens 420 as an example.

[0095] The first reflecting mirror 410 can be located above the first projection unit 100 and / or the second projection unit 200, and the second reflecting mirror 420 can be located on the side of the first projection unit 100 and / or the second projection unit 200 facing the front windshield 2000, so that the light rays of the first projection unit 100 and the second projection unit 200 can be reflected by the first reflecting mirror 410 and then enter the second reflecting mirror 420, which has the function of condensing and reflects the light rays onto the front windshield 2000 again, thereby forming the first projection area 101 and the image information on the front windshield 2000.

[0096] It can be understood that the optical path assembly 400 including the first reflecting mirror 410 and the second reflecting mirror 420 described above can correspond to the second mode described above. In addition, by setting different parts of the first reflecting mirror 410 and the second reflecting mirror 420 to have different refractive indexes, the first mode described above can be corresponded to.

[0097] In other embodiments, the optical path assembly 400 can further include other optical devices, such as polarizers, lenses, etc.

[0098] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0099] In the description of the present application, it should be understood that the terms "include" and "have" and any variations thereof used in the embodiments of the present application are intended to cover the inclusions without exclusivity, for example, a process, method, system, product or apparatus that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or apparatuses.

[0100] Unless specifically stated and defined, the terms "mounting", "connected", "connecting", "fixed", and the like, should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or become an integral; can be directly connected, or indirectly connected through an intermediate medium, can be connected inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0101] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A vehicle-mounted projection imaging system, characterized in that, include: The first projection unit is used to form a first projection area on the windshield; And a second projection unit, used to project image information onto the first projection area. The first projection area is a dark background area.

2. The vehicle-mounted projection imaging system according to claim 1, characterized in that, The first projection area is a dark gray area or a black area.

3. The vehicle-mounted projection imaging system according to claim 1, characterized in that, The first projection area is a rectangular area.

4. The vehicle-mounted projection imaging system according to claim 1, characterized in that, The transparency of the first projection area is adjustable.

5. The vehicle-mounted projection imaging system according to claim 4, characterized in that, The vehicle-mounted projection imaging system also includes an ambient light sensor and a control unit. The ambient light sensor is used to monitor the intensity of ambient light, and the control unit is used to adjust the transparency of the first projection area according to the intensity of ambient light.

6. The vehicle-mounted projection imaging system according to any one of claims 1 to 5, characterized in that, The first projection unit and the second projection unit are integrated into one unit. Alternatively, the first projection unit and the second projection unit may be two independent devices.

7. The vehicle-mounted projection imaging system according to any one of claims 1 to 5, characterized in that, The vehicle-mounted projection imaging system further includes an optical path component, which is disposed on the optical path between the first projection unit and the windshield and / or on the optical path between the second projection unit and the windshield. The optical path component is used to adjust the size and position of the first projection area and / or the image information.

8. The vehicle-mounted projection imaging system according to claim 7, characterized in that, The optical path assembly includes a reflective lens group, which includes a first reflective lens and a second reflective lens. The first reflective lens is a plane mirror, and the second reflective lens is a curved mirror. The first reflective lens and the second reflective lens are sequentially arranged in the optical path between the first projection unit and the windshield and / or in the optical path between the second projection unit and the windshield.

9. A display system, characterized in that, include: The image acquisition unit is used to acquire image information of the vehicle's exterior. An image processing unit, electrically connected to the image acquisition unit, is used to process the image information; And the vehicle-mounted projection imaging system according to any one of claims 1 to 8, electrically connected to the image processing unit, wherein the first projection unit in the vehicle-mounted projection imaging system is used to form a first projection area on the windshield, and the second projection unit in the vehicle-mounted projection imaging system is used to project the image information processed by the image processing unit onto the first projection area.

10. A vehicle, characterized in that, Includes the display system as described in claim 9.

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