Projection device and vehicle

Abstract

The invention relates to a projection device and a vehicle. The projection device comprises a shell; the reflecting assembly is arranged in the shell and comprises at least one curved reflecting mirror; and the light splitting screen is arranged on the shell and comprises a reflecting layer, and the reflecting layer is constructed to be capable of reflecting the image generated by the image source module to the reflecting assembly and transmitting the image generated by the image source module and amplified by the at least one curved surface reflecting mirror. Thus, by means of the space optical design, when the projection device is applied to a vehicle, the problems that passengers are prone to visual fatigue, the viewing distance is too short, and carsickness is prone to occurring can be effectively solved, meanwhile, a larger imaging size is brought by the ultra-long imaging distance, and the immersion feeling and the impression experience of the passengers in the back row are better enhanced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of virtual imaging, and in particular, to a projection device and a vehicle. Background Art

[0002] As consumers' recognition of car intelligence continues to grow, various entertainment systems in car cabins have become a new battlefield for OEMs. For front-row entertainment systems, various large-size screens and triple screens have emerged one after another, greatly enhancing the driving and entertainment experience of the driver and co-driver. The entertainment system in the back row is still mainly based on small-size headrest screens arranged at the headrest position of the seat. The small-size headrest screen is close to the human eye. Watching the small-size headrest screen for a long time can easily cause motion sickness and visual fatigue and other related problems, affecting the viewing experience of people during the ride. Summary of the invention

[0003] The purpose of the present disclosure is to provide a projection device and a vehicle, which can improve the viewing experience of people and at least partially solve the above technical problems.

[0004] In order to achieve the above object, the first aspect of the present disclosure provides a projection device, comprising:

[0005] case;

[0006] a reflective assembly, disposed inside the housing and comprising at least one curved reflector; and

[0007] The beam splitter is arranged on the housing and comprises a reflective layer, wherein the reflective layer is configured to reflect the display image of the image source module onto the reflective component and transmit the display image of the image source module magnified by the at least one curved reflector.

[0008] Optionally, the projection device includes the image source module and a controller connected to the image source module by signal, and the image source module is an image generating unit.

[0009] Optionally, a mounting position is provided on the housing, and the mounting position is used to detachably mount or place the image source module configured as a mobile terminal.

[0010] Optionally, the projection device comprises a driving mechanism, the shell is used to be connected to a base, and the driving mechanism is used to adjust the position of the shell relative to the base to change the orientation of the beam splitter screen.

[0011] Optionally, the driving mechanism comprises a motor and a transmission assembly, and the motor is connected to the housing via the transmission assembly to drive the housing to rotate relative to the base, so as to change the angle of the beam splitter relative to the base.

[0012] Optionally, the reflective layer is constructed to be capable of reflecting light at a first incident angle and transmitting light at a second incident angle; the image source module is arranged relative to the reflective layer so that a display image of the image source module is incident on the reflective layer at a first incident angle, so that the reflective layer can reflect the display image from the image source module; the at least one curved reflector is arranged relative to the reflective layer so that an amplified display image reflected by the at least one curved reflector is incident on the reflective layer at a second incident angle and is transmitted through the reflective layer to outside the beam splitter screen.

[0013] Optionally, the range of the first incident angle is greater than 15° and less than 90°, and the range of the second incident angle is not greater than 15°.

[0014] Optionally, the beam splitter further comprises an anti-glare layer stacked on an outer surface of the reflective layer.

[0015] A second aspect of the present disclosure further provides a vehicle, comprising a base and the projection device as described above connected to the base.

[0016] Optionally, the base includes a seat, the projection device is located at the rear side of the seat, and the beam splitter is located at a side of the shell facing away from the seat.

[0017] Optionally, the projection device is at least partially embedded in the seat.

[0018] Optionally, the vehicle further comprises an interactive device, and the interactive device is signal-connected to the projection device.

[0019] Optionally, the interactive device includes a multimedia host, a first signal input module and a first signal output module, the first signal input module is connected to the projection device through the multimedia host, and the first signal output module is connected to the projection device through the multimedia host; and / or,

[0020] The interactive device comprises a second signal input module and a second signal output module, and the second signal input module and the second signal output module are respectively connected to the projection device by signal.

[0021] Optionally, the first signal output module and / or the second signal output module includes an audio playback device, and / or the first signal input module and / or the second signal input module includes a touch pad, a remote controller and / or a touch screen.

[0022] Optionally, the projection device is configured to be able to directly or indirectly receive a signal from a mobile device.

[0023] Through the above technical solution, the display image of the image source module can be reflected to the reflective component through the reflective layer of the splitter screen, and after being magnified by the curved reflector of the reflective component, it can be reflected to the splitter screen and transmitted through the splitter screen. Therefore, when the human eye views the splitter screen, the magnified display image can enter the eye activity area of ​​the person. Since the display image is magnified by the curved reflector and projected to the human eye through the splitter screen, the display image seen by the human eye is like a virtual magnified image arranged at a distance far from the human eye. Therefore, the projection device disclosed in the present invention can effectively solve the problems of easy visual fatigue of passengers, too close viewing distance, easy motion sickness, etc. when the projection device is applied to a vehicle, for example, through such a spatial optical design. At the same time, the ultra-long imaging distance brings a larger imaging size, which further enhances the immersion and viewing experience of the rear passengers. In addition, the splitter screen can reflect the display image from the image source module through the reflective layer, and can transmit the magnified display image from the reflective component. Therefore, the volume of the projection device can also be reduced and the space utilization rate can be improved.

[0024] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0026] Figure 1 is a schematic diagram of a person watching a projection device while sitting in the back seat of a vehicle provided in an exemplary embodiment of the present disclosure;

[0027] Figure 2 is a schematic diagram of a cross-sectional structure of a projection device provided in an exemplary embodiment of the present disclosure;

[0028] Figure 3 is a front view structural schematic diagram of a projection device provided in an exemplary embodiment of the present disclosure;

[0029] Figure 4 is a schematic diagram of the framework structure of an interactive device and a projection device provided in an exemplary embodiment of the present disclosure;

[0030] Figure 5 Schematic diagram of the structure of a beam splitter provided in an exemplary embodiment of the present disclosure.

[0031] Description of Reference Numerals

[0032] 1-shell; 101-installation position; 2-reflection component; 201-curved reflector; 3-beam splitter; 301-reflection layer; 302-anti-glare layer; 4-image source module; 5-controller; 6-driving mechanism; 601-motor; 602-transmission component; 7-base; 701-seat; 8-interactive device; 801-multimedia host; 802-touch pad; 803-remote control; 804-touch screen; 805-audio playback device; 9-mobile device; 10-first projection device; 11-second projection device; 12-virtual enlarged image. DETAILED DESCRIPTION

[0033] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0034] In the present disclosure, unless otherwise stated, directional words such as "inside" and "outside" refer to the inside and outside relative to the outline of the component or structure itself. In addition, it should be noted that the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another element and do not have order and importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0035] A first aspect of the present disclosure provides a projection device, referring to Figures 1 to 5 As shown, the projection device includes a shell 1, a reflection component 2 and a beam splitter 3, wherein the reflection component 2 is arranged inside the shell 1 and includes at least one curved reflector 201, the beam splitter 3 is arranged on the shell 1 and includes a reflection layer 301, and the reflection layer 301 is constructed to be able to reflect the image generated by the image source module 4 onto the reflection component 2, and to be able to transmit the image generated by the image source module 4 magnified by the above-mentioned at least one curved reflector 201.

[0036] Through the above technical scheme, the display image of the image source module 4 can be reflected to the reflective component 2 through the reflective layer 301 of the splitter screen 3, and after being magnified by the curved reflector 201 of the reflective component 2, it can be reflected to the splitter screen 3 and transmitted through the splitter screen 3. Therefore, when the human eye views the splitter screen 3, the magnified display image can enter the eye activity area of ​​the person. Since the display image is magnified by the curved reflector 201 and then projected to the human eye through the splitter screen 3, the display image seen by the human eye is like a virtual magnified image 12 arranged at a far distance from the human eye. Therefore, the projection device disclosed in the present invention, through this spatial optical design, can effectively solve the problems of passengers' easy visual fatigue, too close viewing distance, easy motion sickness, etc. when the projection device is applied to, for example, a vehicle. At the same time, the ultra-long imaging distance brings a larger imaging size, which further enhances the immersion and viewing experience of the rear passengers. In addition, the beam splitter screen 3 can reflect the display image from the image source module 4 and transmit the amplified display image from the reflective component 2 through the reflective layer 301, thereby reducing the volume of the projection device and improving space utilization.

[0037] For example, refer to Figure 1 As shown, in an exemplary application scenario, the projection device can be installed behind the vehicle seat 701, such as on the back of the front seat. At this time, when the passenger is watching the splitter screen 3, since the display image of the image source module 4 is magnified by the curved reflector 201 and then projected to the active area of ​​the human eye through the splitter screen 3, the visual effect given to the passenger is that the display image seen by the human eye is like a virtual enlarged image 12 far in front of the seat 701. Therefore, this spatial optical design can effectively improve the passenger's viewing experience, and the enlarged display image and the long viewing distance can effectively solve the problem of passengers being prone to motion sickness and fatigue when watching small-sized headrest screens in related technologies.

[0038] The number of curved reflectors 201 can be set according to actual application requirements, for example, Figure 2 An embodiment in which the number of the curved reflector 201 is one is exemplarily shown. In this embodiment, the display image of the image source module 4 is reflected onto the curved reflector 201 through the reflective layer 301 of the beam splitter screen 3. The curved reflector 201 amplifies the display image, reflects it onto the beam splitter screen 3 for a second time, and is projected into the eye activity area of ​​the person through the beam splitter screen 3.

[0039] It should be noted that after seeing the technical solution disclosed in the present invention, those skilled in the art can think of an implementation method when the number of the curved reflectors 201 is multiple, that is, the multiple curved reflectors 201 can utilize multiple reflections to magnify the display image multiple times and then project it through the splitter screen 3, so as to further increase the size of the magnified virtual enlarged image 12.

[0040] In addition, when there are multiple curved reflectors 201, the reflective assembly 2 may also include, for example, a plane reflector, which may be arranged between any two curved reflectors 201 so that the display image reflected by one of the curved reflectors 201 may be reflected via the plane reflector to another curved reflector 201, so as to facilitate the internal structural design and optical path folding design of the projection device.

[0041] In addition, the reflective layer 301 can be constructed to be able to reflect light at a first incident angle and to project light at a second incident angle, so that the image source module 4 can be arranged relative to the reflective layer 301 so that the display image of the image source module 4 is incident on the reflective layer 301 at a first incident angle, so that the reflective layer 301 can reflect the display image from the image source module 4; the position of the at least one curved reflector 201 relative to the reflective layer 301 is arranged so that the magnified display image reflected by the at least one curved reflector 201 is incident on the reflective layer 301 at a second incident angle and is transmitted through the reflective layer 301 to the outside of the beam splitter 3, for example, projected to the eye area of ​​the person. The reflective layer 301 can adopt an existing reflective film known in the art, such as a HUD reflective film.

[0042] In some embodiments, the range of the first incident angle may be greater than 15° and less than 90°, so that when the image source module 4 is arranged, the image source module 4 may be arranged so that the display image of the image source module 4 is irradiated onto the reflective layer 301 within the range of the first incident angle; the range of the second incident angle may be no greater than 15°, so that when the at least one curved reflector 201 is arranged, the last curved reflector 201 for magnifying the display image needs to be arranged so that the last curved reflector 201 for magnifying the display image reflects the magnified display image onto the reflective layer 301 within the range of the second incident angle, wherein when the number of the curved reflector 201 is one, the curved reflector 201 may be arranged so that the magnified display image is reflected onto the reflective layer 301. The incident angle is the angle between the incident light and the normal of the incident surface (the surface of the reflective layer 301).

[0043] In some embodiments, the projection device may include an image source module 4, that is, the projection device may integrate the image source module 4, and the image source module 4 may be a component of the projection device itself. Alternatively, the image source module 4 may also be a component independent of the projection device, that is, the projection device itself does not include the image source module 4.

[0044] For example, taking the projection device including the image source module 4 as an example, refer to Figure 2As shown, the projection device may include an image source module 4 and a controller 5 connected to the image source module 4 by signal. The image source module 4 may be an image generating unit, wherein the controller 5 may be a GPU (Graphics Processing Unit) or a CPU (Central Processing Unit), etc. The image data may be read and processed from the memory by the controller 5, and then the image may be transmitted to the image source module 4 through the display interface. Alternatively, when the projection device is applied to a vehicle, the controller 5 may obtain the video signal of the vehicle's multimedia host 801 through the vehicle's data bus, and then output the image to the image source module 4 through the LVDS interface.

[0045] The picture generation unit (PGU) includes but is not limited to image display modules such as LCD screens, DLP modules or LCOS modules of various specifications, and the present disclosure does not make any specific limitation on this.

[0046] In addition, taking the projection device not including the image source module 4 as an example, in some embodiments, reference Figure 2 As shown, the image source module 4 can also be selected from mobile terminals such as mobile phones and tablet computers, that is, the image is provided through the display screen of the mobile terminal, and the display image played on the display screen can be reflected to the curved reflector 201 through the splitter screen 3, so that the video image played on the display screen can be magnified, and finally the magnified video image enters the eye activity area of ​​the viewer after transmitting the splitter screen 3. When the display screen of the mobile terminal is selected as the image source module 4, in order to facilitate the installation of the mobile terminal on the shell 1, a mounting position 101 for installing or placing the mobile terminal can be pre-set on the shell 1. Specifically, the structure of the mounting position 101 can be that a magnetic suction part for adsorbing the mobile terminal is provided on the shell 1, or a fixed bracket for clamping and fixing the mobile terminal is provided on the shell 1, or an embedding groove for embedding and placing the mobile terminal is provided on the shell 1, but the present disclosure is not limited to this.

[0047] In some embodiments, reference Figure 3As shown, due to the height differences and viewing habits of different people, in order to improve the applicability of the projection device, the projection device may include a driving mechanism 6, wherein the housing 1 may be connected to the base 7, and the driving mechanism 6 may be used to adjust the position of the housing 1 relative to the base 7 to change the orientation of the beam splitter 3, that is, when a person watches a video image through the projection device, the orientation of the beam splitter 3 may be adjusted in a targeted manner according to actual conditions, so that the image magnified by the curved reflector 201 can better enter the eye activity area of ​​the viewing person when it is transmitted through the beam splitter 3. Thus, the beam splitter 3 may be adjusted to face the eye activity area of ​​the person as much as possible, so that the person can view the magnified display image in a level state (for example, the eye activity area when the person is sitting upright).

[0048] The driving mechanism can be constructed in any suitable manner. For example, the driving mechanism 6 can include a motor 601 and a transmission assembly 602, wherein the transmission assembly 602 can be a belt transmission structure, that is, a pulley is fixedly connected to the output shaft of the motor 601, and a pulley is fixedly connected to the housing 1. The two pulleys can be connected by a belt. When the output shaft of the motor 601 rotates, the pulley fixed to the housing 1 drives the housing 1 to rotate under the transmission of the belt, thereby changing the orientation of the light splitter 3. The housing 1 can be rotatably connected to the base 7 by, for example, a rotating shaft, or the housing 1 can be directly hinged to the base 7, but the present disclosure is not limited thereto.

[0049] The transmission assembly 602 can also adopt a gear transmission structure, that is, a bevel gear is fixedly connected to the output shaft of the motor 601, and a bevel gear is fixedly connected to the shell 1, and the two bevel gears are meshed. When the output shaft of the motor 601 rotates, the bevel gear fixedly connected to the output shaft of the motor 601 drives the bevel gear fixedly connected to the shell 1 to rotate, so that the shell 1 rotates, thereby changing the direction of the splitter screen 3.

[0050] In another embodiment, the driving mechanism 6 may further include, for example, a rotating rod and a cylinder, that is, the shell 1 is hinged to the base 7 through a rotating rod, and the rotating rod is driven by the cylinder to rotate relative to the base 7, so that the shell 1 and the splitter screen 3 located on the shell 1 rotate relative to the base, thereby adjusting the orientation of the splitter screen 3.

[0051] In some embodiments, reference Figure 5As shown, the beam splitter 3 also includes an anti-glare layer 302 stacked on the outer surface of the reflective layer 301, wherein the anti-glare layer 302 mainly reduces the reflection of external light and improves the clarity and comfort of the beam splitter 3. For example, in a strong light environment, the anti-glare layer 302 can prevent the beam splitter 3 from reflecting external light to avoid visual distress, and the anti-glare layer 302 can also increase the contrast of the beam splitter 3, making the image clearer and presenting more realistic colors. In a dark environment, the anti-glare layer 302 can reduce the reflection of the beam splitter 3 and increase the brightness of the beam splitter 3, so that the user can clearly see the content of the beam splitter 3 in a dark environment.

[0052] In addition, the substrate 7 can adopt any suitable structure according to the application scenario of the projection device. For example, when the projection device is applied to a vehicle, the substrate can be a component at any suitable position on the vehicle. For example, based on the above technical solution, the second aspect of the present disclosure further provides a vehicle, which includes a substrate 7 and the projection device of the above first aspect or any embodiment of the above first aspect connected to the substrate 7.

[0053] In some embodiments, the base 7 may include a seat 701 of the vehicle, the projection device is located at the rear side of the seat 701, and the beam splitter 3 is located at the side of the housing 1 away from the seat 701. The seat may be a front seat of the vehicle, such as a driver's seat or a co-driver's seat. When a person sits on the rear seat of the vehicle, the face of the person sitting can directly look at the back of the driver's seat or the co-driver's seat, that is, when the projection device is installed at the back of the driver's seat or the co-driver's seat, the beam splitter 3 is located at the side of the housing 1 away from the seat 701. After the curved reflector 201 amplifies the image generated by the image source module 4, the amplified image can be transmitted through the beam splitter 3 and enter the eye activity area of ​​the rear seat. By setting the number of curved reflectors 201, the magnification of the displayed image can be adjusted so that the virtual magnified image 12 seen by the human eye appears to be several meters or even more than ten meters away from the person. Therefore, this spatial optical design can effectively improve the passengers' viewing experience. The enlarged display image and the long viewing distance can effectively solve the problem of motion sickness and fatigue of passengers when watching small-sized headrest screens in related technologies.

[0054] In addition, in this embodiment, the projection device provided by the present disclosure can improve the privacy of rear passengers when watching movies. In the related art, the image displayed on the rear display screen is a real image, which enters the human eye activity area of ​​the rear passengers through light diffusion or diffuse reflection. The image display content of the traditional rear display screen can be observed from all angles in the rear row, which is not friendly to the privacy requirements of the rear passengers. The present disclosure uses spatial optical design and the magnification and convergence of curved reflectors to make the observable position of the image imaging only located in a small area near the eye point of the rear passengers, and the projection device can be rotated by a driving mechanism to adjust the position of the observable area of ​​the image by adjusting the angle or direction of the split screen, thereby improving the privacy of the rear passengers while ensuring the viewing experience of the rear passengers.

[0055] In addition, in the related art, the rear display screen will occupy the rear space, affecting the passenger's riding experience. Based on this, in some embodiments, the projection device can be at least partially embedded in the seat 701, thereby reducing or even avoiding the projection device from occupying the rear space.

[0056] In some embodiments, reference Figure 4 As shown, in order to improve the viewing experience of people watching video images through the projection device, the vehicle also includes an interactive device 8, which is connected to the projection device signal. The interactive device 8 can be used to transmit video, audio, control signals, etc. with the projection device.

[0057] For example, in some embodiments, the interactive device 8 may include a multimedia host 801, a first signal input module and a first signal output module, the first signal input module is connected to the projection device through the multimedia host 801, and the first signal output module is connected to the projection device through the multimedia host 801. In this embodiment, the vehicle's own multimedia host 801 can be used for signal transmission, and the first signal input device can transmit control signals to the projection device through the multimedia host 801. For example, the first signal input device may include a touch panel 802, a remote controller 803 and / or a touch screen 804, wherein the touch panel 802 may be, for example, a touch panel arranged in the rear space, for example, arranged on the rear armrest or on the back of the front seat, the remote controller 803 may be wirelessly connected to the multimedia host 801, and the touch screen 804 may also be arranged in the rear space, for example, the touch screen 804 may be a rear armrest screen arranged on the rear armrest, or the touch screen 804 may be arranged on the back of the front seat. The first signal output device may be used to output the audio signal of the projection device, and may use an audio player such as a speaker, earphone or Bluetooth earphone, and the speaker may use the speaker that comes with the vehicle.

[0058] In some embodiments, the interactive device 8 may further include a second signal input module and a second signal output module, and the second signal input module and the second signal output module are respectively connected to the projection device signal. Thus, the second signal input module and the second signal output module can be directly connected to the projection device signal. For example, the second signal input device can transmit a control signal to the projection device. For example, the second signal input device can include a touch panel 802, a remote controller 803 and / or a touch screen 804, wherein the touch panel 802 can be, for example, a touch panel arranged in the rear space, for example, arranged on the rear armrest or on the back of the front seat, the remote controller 803 can be connected to the projection device in a wireless manner, and the touch screen 804 can also be arranged in the rear space, for example, the touch screen 804 can be a rear armrest screen arranged on the rear armrest, or the touch screen 804 can be arranged on the back of the front seat. The second signal output device can be used to output the audio signal of the projection device, and can use an audio playback device such as a speaker, a headset or a Bluetooth headset, and the speaker can use a speaker that comes with the vehicle.

[0059] Figure 4 An embodiment is exemplarily shown in which projection devices are installed on the back of the driver's seat and the passenger seat of the vehicle, wherein the two projection devices are respectively a first projection device 10 and a second projection device 11. In this embodiment, the first signal output module may include an audio playback device 805 (car audio), that is, when the first signal output module includes the audio playback device 805, the audio playback device 805 is respectively connected to the first projection device 10 and the second projection device 11 through the multimedia host 801, so that the audio playback device 805 can be connected to the projection device signal to synchronously play the audio of the projection device, giving people an immersive viewing experience. In this embodiment, the second signal output module is not shown, and the second signal output module may also be a Bluetooth headset directly connected to the two projection devices.

[0060] In addition, in this embodiment, the first signal input module may include a touch panel 802 and a remote control 803, the touch panel 802 and the remote control 803 may be connected to the projection device signal through the vehicle's own multimedia host 801, and the second signal input module may include a touch screen 804, which may be directly connected to the two projection device signals respectively.

[0061] In addition, the multimedia host 801 can transmit the video signal to the controller 5 of the first projection device 10 and the controller 5 of the second projection device 11 through the LVDS interface, so that the first projection device 10 and the second projection device 11 can perform split-screen viewing and interactive functions such as same-screen games. At the same time, the touch panel 802 located in the back row of the vehicle (for example, a control panel located on the back of the driver's seat headrest or the co-driver's seat headrest, which allows passengers to operate the vehicle multimedia system through intuitive touch gestures) and a separately set remote control 803 can interact with the multimedia host 801 through the vehicle's CAN bus network. For example, a person can adjust the volume of the audio playback device 805 through the touch panel 802 and the remote control 803, or control the cursor of the image display interface (the display image of the image source module 4) through the touch panel 802 and the remote control 803 to adjust the image display interface.

[0062] In addition, reference Figure 4 As shown, the touch screen 804 (for example, the rear armrest screen) can be directly connected to the first projection device 10 and the second projection device 11 via the CAN bus, and personnel can adjust the angle, brightness, color and other parameters of the image generated by the image source module 4 in the first projection device 10 and the second projection device 11 through the control interface of the touch screen 804, so that personnel can have a better viewing experience when watching video images.

[0063] At the same time, in order to improve the flexibility of operation, the projection device is configured to be able to directly or indirectly receive a signal from the mobile device 9, specifically, referring to Figure 4 As shown, the mobile device 9 can be, for example, a mobile phone or a tablet computer, that is, the APP function in the mobile phone can control the display interface (the display image of the image source module 4). At the same time, the mobile device 9 can also serve as an additional video transmission port, and transmit the video signal to the image source module 4 through wireless transmission, thereby enriching the viewing options of passengers, and at the same time, it can achieve seamless switching between the mobile phone and the first projection device 10 and the second projection device 11.

[0064] It should be noted that, in some embodiments not shown in the figure, when the second signal input module and the second signal output module are respectively connected to the controller 5 of the first projection device 10 and the controller 5 of the second projection device 11 by signal, at this time, the controller 5 of the first projection device 10 and the controller 5 of the second projection device 11 need to be able to process CAN data (the controller 5 can use the CAN bus protocol to transmit and parse data) and be able to deserialize the LVDS video stream (for LVDS video stream data, the controller 5 needs to decode and deserialize the data, restore it to the original video signal, and output it to the image source module 4 for display).

[0065] The present disclosure exemplarily describes a usage scenario of a projection device. For example, taking the case where projection devices are provided on the back of the driver's seat and the back of the passenger seat of a vehicle, the projection devices at this time can allow passengers in the back row of the vehicle to watch video images. When a person watches the video image through the projection device, the inclination angle of the beam splitter screen 3 can be specifically adjusted according to actual conditions, so that the image magnified by the curved reflector 201 can better enter the eye activity area of ​​the viewer when it is transmitted through the beam splitter screen 3, that is, the person can adjust the inclination angle of the beam splitter screen 3 through the driving mechanism 6 (the driving mechanism 6 can be connected to the controller 5 through a data cable, so that the person can drive the motor 601 to rotate by operating the touch panel 802 and / or the remote control 803 and / or the touch screen 804). The person can adjust the inclination angle of the beam splitter screen 3 according to his or her actual conditions, so as to make the person as comfortable as possible when watching the video image.

[0066] Through the above technical solution, the image generated by the image source module 4 can be reflected onto the curved reflector 201 through the reflective layer 301 of the beam splitter screen 3, and the curved reflector 201 can magnify the image. After the image is magnified by at least one curved reflector 201, the magnified image can be reflected to the beam splitter screen 3 and transmitted through the beam splitter screen 3, so that the magnified image can enter the eye activity area of ​​the person.

[0067] Taking the people sitting in the back row of the vehicle as an example, the image generated by the image source module 4 is reflected by the beam splitter screen 3 to at least one curved reflector 201 (the image is magnified by the curved reflector 201), and then reflected twice by the curved reflector 201 as light perpendicular to the beam splitter screen 3. The light can penetrate the beam splitter screen 3 and enter the eye activity area of ​​the rear passengers. At this time, the people sitting in the back row of the vehicle can obtain the information projected by the projection device (the magnified image) at a level angle.

[0068] In the present disclosure, the projection device is based on the principle of spatial optics. With the cooperation of the beam splitter screen 3 and at least one curved reflector 201 (folding the light path, increasing the object distance, and increasing the magnification), it can amplify the image generated by the image source module 4, and can arrange the virtual image at a distance of several meters or even more than ten meters from the human eye, effectively solving the problem of visual fatigue of the rear passengers. At the same time, the farther imaging distance brings a larger imaging size, further enhancing the immersive feeling of the rear passengers in watching movies.

[0069] In the present disclosure, when people sitting in the back row of a vehicle watch video images through a projection device, their privacy can be improved. Under the magnification and convergence effect of the curved reflector 201, the viewable position of the image can be located only in the eye activity area of ​​the rear passengers. At the same time, the direction of the splitter screen 3 can be adjusted by the driving mechanism 6, thereby achieving the purpose of adjusting the position of the observable area of ​​the image. While improving the privacy of the rear passengers in watching video images, the viewing experience of the rear passengers is guaranteed.

[0070] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0071] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0072] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A projection device, characterized in that: include: case; A reflective assembly, disposed inside the housing and comprising at least one curved reflector; as well as The beam splitter is arranged on the housing and comprises a reflective layer, wherein the reflective layer is configured to reflect the display image of the image source module onto the reflective component and transmit the display image of the image source module magnified by the at least one curved reflector.

2. The projection device according to claim 1, characterized in that: The projection device comprises the image source module and a controller connected to the image source module by signal, and the image source module is an image generating unit.

3. The projection device according to claim 1, characterized in that: The housing is provided with an installation position, and the installation position is used to detachably install or place the image source module configured as a mobile terminal.

4. The projection device according to claim 1, characterized in that: The projection device comprises a driving mechanism, the shell is used to be connected to a base, and the driving mechanism is used to adjust the position of the shell relative to the base to change the orientation of the beam splitter screen.

5. The projection device according to claim 4, characterized in that: The driving mechanism comprises a motor and a transmission assembly. The motor is connected to the housing through the transmission assembly to drive the housing to rotate relative to the base, so as to change the angle of the beam splitter relative to the base.

6. The projection device according to claim 1, characterized in that: The reflective layer is configured to reflect light at a first incident angle and transmit light at a second incident angle; the image source module is arranged relative to the reflective layer so that a display image of the image source module is incident on the reflective layer at a first incident angle, so that the reflective layer can reflect the display image from the image source module; the at least one curved reflector is arranged relative to the reflective layer so that an amplified display image reflected by the at least one curved reflector is incident on the reflective layer at a second incident angle and is transmitted through the reflective layer to the outside of the beam splitter screen.

7. The projection device according to claim 6, characterized in that: The range of the first incident angle is greater than 15° and less than 90°, and the range of the second incident angle is not greater than 15°.

8. The projection device according to claim 1, characterized in that: The beam splitter further includes an anti-glare layer stacked on the outer surface of the reflective layer.

9. A vehicle, characterized in that: The invention comprises a substrate and a projection device according to any one of claims 1 to 8 connected to the substrate.

10. The vehicle according to claim 9, characterized in that The base body comprises a seat, the projection device is located at the rear side of the seat, and the beam splitter screen is located at a side of the shell body away from the seat.

11. The vehicle according to claim 10, characterized in that The projection device is at least partially embedded in the seat.

12. The vehicle according to claim 9, characterized in that The vehicle further comprises an interactive device, and the interactive device is signal-connected to the projection device.

13. The vehicle according to claim 12, characterized in that The interactive device comprises a multimedia host, a first signal input module and a first signal output module, wherein the first signal input module is connected to the projection device by signal through the multimedia host, and the first signal output module is connected to the projection device by signal through the multimedia host; and / or, The interactive device comprises a second signal input module and a second signal output module, and the second signal input module and the second signal output module are respectively connected to the projection device by signal.

14. The vehicle according to claim 13, characterized in that The first signal output module and / or the second signal output module include an audio playback device, and / or the first signal input module and / or the second signal input module include a touch pad, a remote controller and / or a touch screen.

15. The vehicle according to claim 9, characterized in that The projection device is configured to be able to directly or indirectly receive a signal from the mobile device.

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