Reduced-volume image device for vehicle

Abstract

An image device for a vehicle includes: a mirror that is disposed inside an instrument panel of the vehicle and reflects an optical signal inside the instrument panel; an image forming device which is disposed inside the instrument panel and forms the optical signal to one side; a cover forming an appearance of the instrument panel and including a first surface and a second surface selectively reflecting or transmitting the optical signal according to a polarization component of the optical signal; and a second mirror disposed between a windshield of the vehicle and the cover, the second mirror reflecting an optical signal that has passed through the cover toward the first surface of the cover, and causing the optical signal to face a first region of the windshield.

Description

Technical Field

[0001] This specification relates to a vehicle imaging device. More specifically, it relates to a vehicle imaging device with reduced volume and a vehicle having the same. Background Art

[0002] A vehicle is a device that moves in the direction desired by the seated user. A typical example is an automobile.

[0003] On the other hand, for the convenience of users of vehicles, there is a trend to install various sensors, electronic devices, etc. In particular, for the convenience of users driving, research on vehicle driver assistance systems (ADAS: Advanced Driver Assistance System) is being actively carried out. In addition, the development of autonomous vehicles is being actively carried out.

[0004] On the other hand, a vehicle display that displays various driving information of the vehicle is located below the front driving vision of the driver, thus affecting driving safety (rubber necking). Therefore, recently, a vehicle imaging device that ensures driving safety by implementing an image on the windshield in front of the vehicle close to the driving vision, such as a HUD (Headup display), can be mounted on the vehicle.

[0005] Such a HUD can use augmented reality (AR; Augmented Reality) to display driving-related information and can be implemented in a large-screen manner. Since the installation space for a large-screen AR-HUD is limited, a product with reduced volume (less than 10L) and a large screen (FOV 10X4 degrees or more) may be required. However, there is a problem with vehicle imaging devices such as AR-HUDs in which it is difficult to achieve reduced volume (less than 10L) in products with a large screen (FOV 10X4 degrees or more) above a preset size. Summary of the Invention

[0006] Problems to be Solved by the Invention

[0007] The purpose of this specification is to provide a vehicle imaging device with reduced volume and a vehicle having the same.

[0008] In addition, the purpose of this specification is to provide a vehicle imaging device that ensures a viewing angle (FOV) of a specific angle or more in a reduced volume manner due to the limited installation space of a large-screen AR-HUD.

[0009] In addition, an object of the present specification is to provide a vehicle image device that reflects different AR images through different regions of a windshield using a plurality of mirrors and provides them within the field of view of a user.

[0010] In addition, an object of the present specification is to provide a method of implementing an image having a large aspect ratio by using a single image module for continuous images associated with driving-related information.

[0011] The problems of the present invention are not limited to the problems mentioned above, and those skilled in the art can clearly understand other problems not mentioned through the following description.

[0012] Technical solutions for solving the problems

[0013] To achieve the above problems, a vehicle image device according to one aspect of the present specification includes: a mirror disposed inside a dashboard of a vehicle to reflect an optical signal inside the dashboard; an image forming device (PGU: Picture Generation Unit) disposed inside the dashboard to form the optical signal toward one side; a cover forming an appearance of the dashboard, including a first surface and a second surface that selectively reflect or transmit the optical signal according to a polarization component of the optical signal; and a second mirror disposed between the windshield of the vehicle and the cover to reflect the optical signal that has passed through the cover toward the first surface of the cover so that the optical signal is directed toward a first region of the windshield.

[0014] According to an embodiment, the mirror may include: a plane mirror having a flat surface formed to reflect the optical signal formed by the image forming device and reflected by the first surface of the cover; and a phase retarder formed on the first surface of the plane mirror to retard the phase of the polarization component of the optical signal.

[0015] According to an embodiment, the second mirror may include: a concave mirror having a recessed surface formed to reflect the optical signal that has passed through the first surface of the mirror; and a second phase retarder formed on the first surface of the concave mirror to retard the phase of the polarization component of the optical signal within a specified range with respect to 90 degrees.

[0016] According to an embodiment, the cover may include: a first polarizing film disposed on the first surface, selectively transmitting or reflecting the optical signal according to the polarization component of the optical signal; and a second polarizing film disposed on the second surface, selectively transmitting or reflecting the optical signal according to the polarization component of the optical signal. The first polarization component emitted from the image forming device may be reflected by the first polarizing film and converted into a second polarization component by the phase retarder and the flat mirror. The second polarization component may pass through the first polarizing film and the second polarizing film and be converted into the first polarization component by the second phase retarder and the concave mirror. The first polarization component converted by the second phase retarder and the concave mirror may be reflected by the second polarizing film and directed toward the windshield.

[0017] According to an embodiment, the mirror may be formed at a first inclination angle with respect to the horizontal plane, the second mirror may be formed at a second inclination angle with respect to the horizontal plane, and the image forming device may be formed at a predetermined inclination angle with respect to the horizontal plane. The second inclination angle may be formed to be greater than the first inclination angle. The inclination angle of the image forming device may be set to a value greater than the first inclination angle and the second inclination angle. The first inclination angle, the second inclination angle, and the inclination angle of the image forming device may have values less than 90 degrees.

[0018] According to an embodiment, the cover can be adjusted so that sunlight does not flow in according to the angle of the windshield and the position of the eye box area of the driver of the vehicle. The inclination angle of the cover may be formed to be greater than the first inclination angle and less than the second inclination angle.

[0019] According to an embodiment, different regions of the windshield may be formed with different curvatures so that the optical signal reflected by the second phase retarder of the second mirror and reflected by the first surface of the cover is reflected toward the eye box area of the driver of the vehicle, enabling the driver to see a virtual image. The optical signals reflected at the first position and the second position of the windshield may be formed at the third position and the fourth position of the eye box. The first vertical distance between the first position and the second position may be formed to be greater than the second vertical distance between the third position and the fourth position.

[0020] According to an embodiment, the device may further include a motor operably coupled to the flat mirror to adjust the first inclination angle of the flat mirror with respect to the horizontal plane. The device may further include a motor operably coupled to the flat mirror to adjust the first inclination angle of the flat mirror with respect to the horizontal plane.

[0021] According to an embodiment, the device may further include a third mirror disposed between the mirror and the second mirror and configured to reflect a second optical signal to direct the second optical signal toward a second area of the windshield. The third mirror may be formed at a third tilt angle with respect to a horizontal plane. The third tilt angle may be formed to have a value greater than 90 degrees.

[0022] According to an embodiment, the second optical signal reflected at a fifth position and a sixth position of the windshield may form at a third position and a fourth position of the eyebox. The fifth position may be formed between the first position and the second position, and the sixth position may be formed at a position closer to a lower area than the second position. A third vertical distance between the fifth position and the sixth position may be formed to be less than the first vertical distance between the first position and the second position.

[0023] According to an embodiment, the image forming device emits the second optical signal through a fourth area while emitting the optical signal through a third area. The optical signal may be incident on the first area of the windshield after being reflected by the mirror and the second mirror. The optical signal may be incident on the first area of the windshield after being reflected by the mirror and the second mirror.

[0024] According to an embodiment, the third mirror may include: a second concave mirror having a concave surface to reflect the second optical signal; and a third phase retarder formed on a first surface of the second concave mirror to retard a phase of a polarization component of the second optical signal. The optical signal may be emitted with a first polarization component through a third area of the PGU. The second optical signal may be emitted with a second polarization component through a fourth area of the PGU. The second optical signal with the second polarization component may be converted to the first polarization component by the third phase retarder and the second concave mirror. The converted first polarization component may pass through the first polarizing film and the second polarizing film and be directed toward the windshield.

[0025] According to an embodiment, a first curvature of the concave mirror may be determined based on a FOV (Field Of View) and a first magnification of a first virtual image displayed in the eyebox area. A second curvature of the second concave mirror may be determined to be different from the first curvature based on a second magnification of a second virtual image displayed in the eyebox area.

[0026] According to an embodiment, the first virtual image may display a first image and first information related to direction indication and vehicle distance display based on an AR (Augmented Reality) image. The second virtual image may be displayed as a second image and second information associated with an indicator related to speed display shown on a dashboard of the vehicle.

[0027] According to an embodiment, the apparatus may further include a second motor operably coupled to the second concave mirror to adjust a third tilt angle of the second concave mirror with respect to the horizontal plane. By adjusting the third tilt angle using the second motor, the vertical positions of the third position and the fourth position may be changed and the visual field height in the vertical direction of the eye box region may be adjusted.

[0028] A vehicle according to another aspect of the present specification includes: a windshield disposed at the front of the vehicle; and a vehicle imaging device disposed inside the instrument panel of the vehicle and between the windshield and the instrument panel. The vehicle imaging device includes: a mirror disposed inside the instrument panel (dash board) of the vehicle to reflect an optical signal inside the instrument panel; an image forming device (PGU: Picture Generation Unit) disposed inside the instrument panel to form the optical signal to one side; a cover forming an appearance of the instrument panel, including a first surface and a second surface that selectively reflect or transmit the optical signal according to a polarization component of the optical signal; and a second mirror disposed between the windshield of the vehicle and the cover to reflect the optical signal that has passed through the cover to the first surface of the cover so that the optical signal is directed to a first region of the windshield.

[0029] According to an embodiment, the mirror may include: a plane mirror having a flat surface formed to reflect the optical signal formed by the image forming device and reflected by the first surface of the cover; and a phase retarder formed on the first surface of the plane mirror to retard the phase of the polarization component of the optical signal.

[0030] According to an embodiment, the second mirror may include: a concave mirror having a recessed surface formed to reflect the optical signal that has passed through the first surface of the mirror; and a second phase retarder formed on the first surface of the concave mirror to retard the phase of the polarization component of the optical signal within a specified range with respect to 90 degrees.

[0031] According to an embodiment, the cover may include: a first polarizing film disposed on the first surface, selectively transmitting or reflecting the optical signal according to a polarization component of the optical signal; and a second polarizing film disposed on the second surface, selectively transmitting or reflecting the optical signal according to a polarization component of the optical signal. A first polarization component emitted from the image forming device may be reflected by the first polarizing film and converted into a second polarization component by the phase retarder and the plane mirror. The second polarization component may pass through the first polarizing film and the second polarizing film and be converted into the first polarization component by the second phase retarder and the concave mirror. The first polarization component converted by the second phase retarder and the concave mirror may be reflected by the second polarizing film and directed toward the windshield.

[0032] According to an embodiment, the cover may include: a first polarizing film disposed on the first surface, selectively transmitting or reflecting the optical signal according to a polarization component of the optical signal; and a second polarizing film disposed on the second surface, selectively transmitting or reflecting the optical signal according to a polarization component of the optical signal. A first polarization component emitted from the image forming device may be reflected by the first polarizing film and converted into a second polarization component by the phase retarder and the plane mirror. The second polarization component may pass through the first polarizing film and the second polarizing film and be converted into the first polarization component by the second phase retarder and the concave mirror. The first polarization component converted by the second phase retarder and the concave mirror may be reflected by the second polarizing film and directed toward the windshield.

[0033] According to an embodiment, the device may further include a third mirror disposed between the mirror and the second mirror and configured to reflect a second optical signal and direct the second optical signal toward a second region of the windshield. The third mirror may be formed at a third tilt angle with respect to a horizontal plane. The third tilt angle may be formed to have a value greater than 90 degrees.

[0034] According to an embodiment, the third mirror may include: a second concave mirror having a concave surface formed to reflect the second optical signal; and a third phase retarder formed on a first surface of the second concave mirror to retard the phase of a polarization component of the second optical signal. The optical signal may be emitted in a first polarization component in a third region of the PGU. The second optical signal may be emitted in a second polarization component in a fourth region of the PGU. The second optical signal having the second polarization component may be converted into the first polarization component by the third phase retarder and the second concave mirror. The converted first polarization component may pass through the first polarizing film and the second polarizing film and face the windshield. The first curvature of the concave mirror may be determined according to the FOV (Field Of View) and the first magnification of the first virtual image displayed in the eyebox region. The second curvature of the second concave mirror may be determined to be different from the first curvature according to the second magnification of the second virtual image displayed in the eyebox region.

[0035] Specific contents of other embodiments are included in the detailed description and the drawings.

[0036] Advantages of the Invention

[0037] Technical features of the in-vehicle imaging device with a reduced volume and the vehicle having the same according to this specification may be summarized as follows.

[0038] According to this specification, the image forming device and the mirror are optimally arranged inside the cover of the instrument panel, and the second mirror is optimally arranged outside the cover, so that an in-vehicle imaging device with a reduced volume can be realized.

[0039] According to this specification, the cover is configured to reflect or transmit the optical signal, so that an in-vehicle imaging device can be realized which ensures a viewing angle (FOV) of a specific angle or more in a reduced volume due to the limited installation space of the large-screen AR-HUD.

[0040] According to this specification, a polarizing film is attached to at least one surface of the cover, so that an in-vehicle imaging device can be realized which ensures a viewing angle (FOV) of a specific angle or more in a reduced volume due to the limited installation space of the large-screen AR-HUD.

[0041] According to this specification, an in-vehicle imaging device can be realized which reflects different AR images through different regions of the windshield by using a plurality of mirrors and provides them to the user's field of view.

[0042] According to this specification, an in-vehicle imaging device can be realized which uses one imaging module to implement an image with a large aspect ratio for continuous images associated with driving-related information.

[0043] According to this specification, it is possible to maximize the volume reduction effect through an optical system with multiple selective reflection / transmission using a cover used to prevent foreign substances from entering.

[0044] According to this specification, it is possible to ensure the freedom of the occupied volume when installed inside a vehicle by reducing the height from the lower end of the first mirror to the upper end of the second mirror.

[0045] According to this specification, compared with existing large-screen AR-HUDs on the market, it is possible to implement a vehicle imaging device with a volume reduction effect of more than 40%.

[0046] According to this specification, it is possible to provide a vehicle imaging device for an AR-HUD that can be implemented to have a volume of about 9L or less inside a vehicle.

[0047] The effects of this specification are not limited to the above-mentioned effects, and those skilled in the art can clearly understand other effects not mentioned through the description in the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a view showing the appearance of a vehicle according to an embodiment of the present invention.

[0049] Figure 2 It is a view of the vehicle according to an embodiment of the present invention observed from various external angles.

[0050] Figures 3 to 4 It is a view showing the interior of a vehicle according to an embodiment of this specification.

[0051] Figure 5 It is a block diagram for explaining a vehicle according to an embodiment of this specification.

[0052] Figure 6a It shows a configuration in which a screen with a specified ratio is formed in a specific area of the front glass of the vehicle.

[0053] Figure 6b It shows for implementing Figure 6a a structure in which a vehicle imaging device for a screen with a specified ratio is arranged inside the instrument panel of the vehicle.

[0054] Figure 7 It shows a vehicle imaging device according to an embodiment.

[0055] Figure 8 It shows Figure 7 a cross-sectional view of a vehicle imaging device.

[0056] Figure 9 It shows Figure 7 a structure in which an optical signal is reflected and transmitted through a specific area of the windshield in a vehicle imaging device.

[0057] Figure 10 Indicates the polarization component in the phase retarder attached to the plane mirror Figure 10 and the second phase retarder attached to the concave mirror of the second mirror. Figure 8

[0058] Figure 11 Indicates the vehicle image device of the embodiment.

[0059] Figure 12 Indicates Figure 11 a cross-sectional view of the vehicle image device

[0060] Figure 13 a cross-sectional view of the vehicle image device having a structure in which two mirrors are arranged in the lower region of the cover.

[0061] Figure 14 Associated with Figure 13 indicates the vehicle image device having a structure in which two mirrors are arranged in the lower region of the cover.

[0062] Figure 15 Indicates a block diagram of the vehicle having the vehicle image device of the present specification. Detailed Description

[0063] Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings. Regardless of the figure numbers, the same or similar components will be denoted by the same reference numerals, and repeated descriptions thereof will be omitted. The suffixes "module" and "unit" of the components used in the following description are given or mixed only for the ease of writing the specification, and they do not have meanings or functions to distinguish each other. Also, when explaining the embodiments disclosed in the present specification, if it is determined that the detailed description of the related well-known technology may obscure the gist of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. Also, the accompanying drawings are only for facilitating the understanding of the embodiments disclosed in the present specification, and it should be understood that the technical idea disclosed in the present specification is not limited by the accompanying drawings, but encompasses all modifications, equivalents, and alternatives included in the spirit and technical scope of the present invention.

[0064] Ordinal terms including first, second, etc. may be used to describe various components, but the components are not limited by the terms. The terms are only used to distinguish one component from another.

[0065] When referring to a certain component being "connected" or "coupled" to another component, it should be understood that it can be directly connected or coupled to the other component, or there may be other components between them. On the contrary, when referring to a certain component being "directly connected" or "directly coupled" to another component, it should be understood that there are no other components between them. ​

[0066] Unless otherwise clearly specified in the context, singular expressions include plural expressions.

[0067] In this application, it should be understood that terms such as "including" or "having" are intended to indicate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and do not preclude the possibility of the presence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0068] The vehicle described in this specification can be a concept including automobiles and motorcycles. Hereinafter, the description will mainly focus on automobiles among vehicles.

[0069] The vehicle described in this specification can be a concept including an internal combustion engine vehicle having an engine as a power source, a hybrid vehicle having an engine and an electric motor as power sources, and an electric vehicle having an electric motor as a power source, etc.

[0070] In the following description, the left side of the vehicle refers to the left side in the driving direction of the vehicle, and the right side of the vehicle refers to the right side in the driving direction of the vehicle.

[0071] Figure 1 It is a view showing the appearance of the vehicle according to an embodiment of the present invention.

[0072] Figure 2 It is a view observing the vehicle according to an embodiment of the present invention from various external angles.

[0073] Figures 3 to 4 It is a view showing the interior of the vehicle according to an embodiment of this specification.

[0074] Figure 5 It is a block diagram for explaining the vehicle according to an embodiment of this specification.

[0075] Referring to Figures 1 to 5 , the vehicle 100 may include: wheels rotated by a power source; and a steering input device 510 for adjusting the traveling direction of the vehicle 100.

[0076] The vehicle 100 can be an autonomous vehicle.

[0077] The vehicle 100 can be switched to an autonomous driving mode or a manual mode based on a user input.

[0078] For example, the vehicle 100 can be switched from a manual mode to an autonomous driving mode or from an autonomous driving mode to a manual mode based on a user input received through the user interface device 200.

[0079] Vehicle 100 can switch to an autonomous driving mode or a manual mode based on driving condition information. The driving condition information can be generated based on object information provided by the object detection device 300.

[0080] For example, vehicle 100 can switch from the manual mode to the autonomous driving mode or from the autonomous driving mode to the manual mode based on the driving condition information generated in the object detection device 300.

[0081] For example, vehicle 100 can switch from the manual mode to the autonomous driving mode or from the autonomous driving mode to the manual mode based on the driving condition information received through the communication device 400.

[0082] Vehicle 100 can switch from the manual mode to the autonomous driving mode or from the autonomous driving mode to the manual mode based on information, data, and signals provided by an external device.

[0083] When vehicle 100 is operating in the autonomous driving mode, the autonomous driving vehicle 100 can operate based on the operating system 700.

[0084] For example, the autonomous driving vehicle 100 can operate based on information, data, or signals generated in the driving system 710, the vehicle departure system 740, and the parking system 750.

[0085] When vehicle 100 is operating in the manual mode, the autonomous driving vehicle 100 can receive user input for driving through the driving operation device 500. Based on the user input received through the driving operation device 500, vehicle 100 can operate.

[0086] The overall length refers to the length from the front part to the rear part of vehicle 100, the width refers to the width of vehicle 100, and the height refers to the length from the lower part of the wheel to the roof of the vehicle. In the following description, the overall length direction L can refer to the direction based on the measurement of the overall length of vehicle 100, the width direction W can refer to the direction based on the measurement of the width of vehicle 100, and the height direction H can refer to the direction based on the measurement of the height of vehicle 100.

[0087] As Figure 5 shown, vehicle 100 can include a user interface device 200, an object detection device 300, a communication device 400, a driving operation device 500, a vehicle driving device 600, an operating system 700, a navigation system 770, a sensing unit 120, an interface unit 130, a memory 140, a control unit 170, and a power supply unit 190.

[0088] According to an embodiment, the vehicle 100 may further include other components in addition to the components described in this specification, or may not include some of the described components.

[0089] The user interface device 200 is a device for communicating between the vehicle 100 and the user. The user interface device 200 receives user input and can provide the information generated in the vehicle 100 to the user. The vehicle 100 can implement UI (User Interfaces) or UX (User Experience) through the user interface device 200.

[0090] The user interface device 200 may include an input unit 210, an internal camera 220, a biometric sensing unit 230, an output unit 250, and a processor 270.

[0091] According to an embodiment, the user interface device 200 may further include other components in addition to the described components, or may not include some of the described components.

[0092] The input unit 210 is used to receive information from the user. The data collected in the input unit 210 is analyzed by the processor 270 and can be processed into a control command of the user.

[0093] The input unit 210 may be disposed inside the vehicle. For example, the input unit 210 may be disposed in an area of the steering wheel, an area of the instrument panel, an area of the seat, an area of each pillar, an area of the door, an area of the center console, an area of the headlining, an area of the sun visor, an area of the windshield, or an area of the window, etc.

[0094] The input unit 210 may include a voice input unit 211, a gesture input unit 212, a touch input unit 213, and a mechanical input unit 214.

[0095] The voice input unit 211 can convert the voice input of the user into an electrical signal. The converted electrical signal can be provided to the processor 270 or the control unit 170.

[0096] The voice input unit 211 may include one or more microphones.

[0097] The gesture input unit 212 can convert the gesture input of the user into an electrical signal. The converted electrical signal can be provided to the processor 270 or the control unit 170.

[0098] The gesture input unit 212 may include at least one of an infrared sensor and an image sensor for sensing a user's gesture input.

[0099] According to an embodiment, the gesture input unit 212 may sense a three-dimensional gesture input of a user. To this end, the gesture input unit 212 may include a light output unit that outputs a plurality of infrared lights or a plurality of image sensors.

[0100] The gesture input unit 212 may sense a three-dimensional gesture input of a user by a TOF (Time of Flight) method, a structured light method, or a disparity method.

[0101] The touch input unit 213 may convert a user's touch input into an electrical signal. The converted electrical signal may be provided to the processor 270 or the control unit 170.

[0102] The touch input unit 213 may include a touch sensor for sensing a user's touch input.

[0103] According to an embodiment, the touch input unit 213 is integrally formed with the display unit 251, thereby enabling a touch screen. Such a touch screen may together provide an input interface and an output interface between the vehicle 100 and the user.

[0104] The mechanical input unit 214 may include at least one of a button, a dome switch, a roller, and a roller switch. An electrical signal generated by the mechanical input unit 214 may be provided to the processor 270 or the control unit 170.

[0105] The mechanical input unit 214 may be disposed on a steering wheel, a center instrument panel, a center console, a cockpit module, a door, etc.

[0106] The interior camera 220 may acquire an image of the interior of the vehicle. The processor 270 may sense the state of the user based on the image of the interior of the vehicle. The processor 270 may acquire the line-of-sight information of the user from the image of the interior of the vehicle. The processor 270 may sense the gesture of the user from the image of the interior of the vehicle.

[0107] The biometric sensing unit 230 may acquire biometric information of the user. The biometric sensing unit 230 includes sensors capable of acquiring biometric information of the user, and may use the sensors to acquire fingerprint information, heart rate information, etc. of the user. The biometric information may be used for user authentication.

[0108] The output unit 250 is configured to generate an output related to vision, audition, touch, or the like.

[0109] The output unit 250 may include at least one of a display unit 251, a sound output unit 252, and a haptic output unit 253.

[0110] The display unit 251 may display graphic objects corresponding to various information.

[0111] The display unit 251 may include at least one of a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display, a three-dimensional display (3D display), and an electronic ink display (e-ink display).

[0112] The display unit 251 and the touch input unit 213 form a layer structure or are integrally formed, so that a touch screen can be implemented.

[0113] The display unit 251 may be implemented by a HUD (Head up display), a CID (Center Information Display), a cluster, and / or an RSE (Rear Seat Entertainment). When the display unit 251 is implemented by a HUD, the display unit 251 has a projection module and can output information through an image projected onto a windshield or a window.

[0114] The display unit 251 may include a transparent display. The transparent display may be attached to a windshield or a window.

[0115] The transparent display has a predetermined transparency and can display a predetermined screen. In order to have transparency, the transparent display may include at least one of a transparent TFEL (Thin Film Elecroluminescent), a transparent OLED (Organic Light-Emitting Diode), a transparent LCD (Liquid Crystal Display), a transmissive transparent display, and a transparent LED (Light Emitting Diode) display. The transparency of the transparent display can be adjusted.

[0116] On the other hand, the user interface device 200 may include a plurality of display units 251a to 251g.

[0117] The display unit 251 may be disposed in an area of the steering wheel, an area 251a, 251b, 251e of the instrument panel, an area 251d of the seat, an area 251f of each pillar, an area 251g of the door, an area of the center console, an area of the roof panel, an area of the sun visor, or may be implemented in an area 251c of the windshield, an area 251h of the window.

[0118] In areas 251a, 251b of the instrument panel, driving-related information for the driver may be displayed. In area 251e of the instrument panel, a personalized infotainment display may be implemented for the passenger sitting in the passenger seat by a vehicle image device. In area 251d of the seat, a personalized infotainment display may be implemented for RSE (Rear Seat Entertainment) by a vehicle image device.

[0119] The sound output unit 252 converts an electrical signal provided from the processor 270 or the control unit 170 into an audio signal and outputs it. To this end, the sound output unit 252 may include one or more speakers.

[0120] The tactile output unit 253 generates a tactile output. For example, the tactile output unit 253 can enable the user to recognize the output by vibrating the steering wheel, seat belt, seats 110FL, 110FR, 110RL, 110RR.

[0121] The processor 270 may control the overall operation of each unit of the user interface device 200.

[0122] According to an embodiment, the user interface device 200 may include a plurality of processors 270, or may not include a processor 270.

[0123] In the case where the user interface device 200 does not include a processor 270, the user interface device 200 may operate according to the control of a processor or the control unit 170 of other devices within the vehicle 100.

[0124] On the other hand, the user interface device 200 may be named a vehicle display device.

[0125] The user interface device 200 may operate according to the control of the control unit 170.

[0126] The object detection device 300 is a device for detecting an object located outside the vehicle 100.

[0127] The object may be various objects related to the operation of the vehicle 100.

[0128] On the other hand, a vehicle image device according to this specification will be described. In this regard, a vehicle display that displays various driving information of the vehicle is located below the front driving vision of the driver, thus affecting driving safety, namely rubber necking. Therefore, recently, a vehicle image device that ensures driving safety by implementing an image on the windshield in front of the vehicle close to the driving vision, such as a HUD (Head up display), can be mounted on the vehicle.

[0129] In addition, it is necessary to implement an infotainment device for providing personal information and personal entertainment content in the passenger seat or the rear seat of the vehicle. Therefore, it is necessary to display driving-related information in the front area of the driver's seat of the vehicle or to provide a vehicle image device for providing personal entertainment content in the front area of the passenger seat or the rear seat of the vehicle.

[0130] In order to display such driving-related information or entertainment content in a specific area of the windshield in front of the vehicle, it is necessary to form a large aspect ratio with the width in one axial direction being more than a specified ratio of the length in the other axial direction. The problem is that there has not yet been specifically proposed what kind of structure and in which part of the vehicle a vehicle image device is provided in order to form a picture with such a large aspect ratio.

[0131] To solve such problems, the object of this specification is to provide a vehicle image device with a large aspect ratio using a projection optical system related to the vehicle. In addition, the object of this specification is to display driving-related information in a specific area of the windshield in front of the vehicle with a picture having a large aspect ratio. In addition, the object of this specification is to provide a vehicle image device having an optical structure and a special screen that use one image module to implement an image with a large aspect ratio. In addition, the object of this specification is to provide a vehicle image device that uses one image module to implement an image with a large aspect ratio for continuous images associated with driving-related information. In addition, the object of this specification is to provide a vehicle image device with a small and thin volume.

[0132] Referring to the accompanying drawings, a vehicle image device for achieving the foregoing object will be described in detail. In this regard, Figure 6a It shows a configuration in which a picture with a specified ratio is formed in a specific area of the front glass of the vehicle. Figure 6b It shows a structure in which a vehicle image device for achieving Figure 6a the picture with the specified ratio is arranged inside the instrument panel of the vehicle.

[0133] Referring to Figure 6a, an image having a width Wa in one axial direction and a length La in another axial direction can be displayed in a specific area 251R of the windshield of the vehicle. The image may include a plurality of image areas that display a plurality of pieces of information required for vehicle driving. The plurality of image areas may include a first image area IR1 to a third image area IR3. A first image including vehicle-related information may be displayed in the first image area IR1 closest to the driver's field of view of the vehicle. A second image related to the vehicle driving path may be displayed in the second image area IR2. A third image related to a map including a departure place and a destination may be displayed in the third image area IR3. According to the display of the plurality of images in the specific area 251R, the width Wa in one axial direction may be set to a specified ratio of the length La in the other axial direction, for example, 5 times or more.

[0134] Refer to Figure 6a and Figure 6b , a vehicle image device 1000 may be disposed inside the instrument panel of the vehicle. The vehicle image device 1000 may be disposed in a specific area inside the instrument panel to prevent overlapping with the area where the steering wheel and pedals are disposed. An image generated by light reflected from the screen panel 1200 constituting the vehicle image device 1000 may be displayed in the specific area 251R of the windshield of the vehicle. The specific area 251R may be implemented with a specified length La to display an image within the driver's field of view. The distance from the center of the driver's line of sight to the center of the specific area 251R may be implemented as a specified distance Da.

[0135] Hereinafter, the vehicle image device of the present specification will be described. In this regard, a vehicle display that displays various driving information of the vehicle is located below the front driving field of view of the driver, thus affecting driving safety (rubber necking). Therefore, recently, a vehicle image device that ensures driving safety by implementing an image on the windshield in front of the vehicle close to the driving field of view, such as a HUD (Head up display), may be mounted on the vehicle.

[0136] Such a HUD can use augmented reality (AR; Augmented Reality) to display driving-related information and can be implemented as a large screen. Since the installation space for a large-screen AR-HUD is limited, a product with a reduced volume (10L or less) and a large screen (FOV 10X4 degrees or more) may be required. However, there is a problem with vehicle image devices such as AR-HUDs in which it is difficult to reduce the volume (10L or less) in products with a large screen (FOV 10X4 degrees or more) larger than a preset size.

[0137] To overcome the above problems, an object of the present specification is to provide a vehicle image device with a reduced volume and a vehicle having the same. In addition, an object of the present specification is to provide a vehicle image device that ensures a viewing angle (FOV) above a specific angle in a reduced volume manner due to limited installation space for a large-screen AR-HUD. In addition, an object of the present specification is to provide a vehicle image device that uses a plurality of mirrors to reflect different AR images through different regions of a windshield and provide them to a user's field of view. In addition, an object of the present specification is to provide a vehicle image device that uses one image module to implement an image with a large aspect ratio for continuous images associated with driving-related information.

[0138] Correspondingly, Figure 7 The vehicle image device showing an embodiment. Figure 8 Indicates Figure 7 A cross-sectional view of the vehicle image device. On the other hand, Figure 9 Indicates Figure 7 In the vehicle image device, a structure in which an optical signal is reflected and transmitted through a specific region of the windshield.

[0139] Referring to Figures 7 to 9 , the vehicle image device 1000 may include a cover 1010, an image forming device 1100, a mirror 1310, and a second mirror 1320. The cover 1010 may form the appearance of a dashboard 1001 of a vehicle. The image forming device 1100 and the mirror 1310 may be disposed inside the cover 1010.

[0140] The mirror 1310 may be disposed inside the dashboard 1001 of the vehicle. The mirror 1310 may be formed to reflect an optical signal inside the dashboard 1001.

[0141] The image forming device (PGU: Picture Generation Unit) 1100 may be disposed inside the dashboard 1001. The image forming device 1100 may be configured to form an optical signal toward one side. The image forming device 1100 may include various projection devices and a display that displays pixels on a screen. The image forming device 1100 may be implemented by an LCD (liquid crystal display), an OLED (organic light-emitting diode), a DLP (Digital Light Processing), an LCoS (Liquid Crystal on Silicon), or a micro LED (micro light-emitting diode).

[0142] The cover 1010 can form the appearance of the instrument panel 1001. The cover 1010 can include a first surface S1 and a second surface S2 that selectively reflect or transmit an optical signal according to the polarization component of the optical signal. In this regard, Figure 10 represents the polarization components in the phase retarder attached to the plane mirror Figure 8 and the second phase retarder attached to the concave mirror of the second mirror.

[0143] Referring to Figures 7 to 10 , according to the polarization of the optical signal incident on the first surface S1 or the second surface S2 of the cover 1010, the cover 1010 can selectively reflect or transmit the optical signal. If the optical signal is the first polarization component, the first cover 1010 reflects the optical signal. If the optical signal is the second polarization component, the first cover 1010 transmits the optical signal. In this regard, the first polarization component can be formed as P polarization, and the second polarization component can be formed as S polarization, but it is not limited thereto and can be changed according to the application.

[0144] The second mirror 1320 can be disposed between the windshield 250 of the vehicle and the cover 1010. The windshield 250 can be disposed on the vehicle frame to protect the driver from the external environment and ensure a field of view. The windshield 250 can reflect the optical path of the optical signal formed by the image forming device 1100 and a plurality of mirrors toward the eye box so that the driver can see the virtual image.

[0145] In this regard, the virtual image is an image that provides the driver with instrument panel information and environmental condition information, and the virtual image distance and FOV can be changed according to requirements. The eye box area is an area representing the movement of the driver's field of view. On the other hand, it is necessary to adjust the height of the eye box area representing the movement of the driver's field of view. In this regard, a motor for adjusting the height (short / normal / tall) of the driver's field of view can also be provided.

[0146] The second mirror 1320 can reflect the optical signal transmitted through the cover 1010 toward the first surface S1 of the cover 1010. The second mirror 1320 can be formed such that the optical signal reflected by the second mirror 1320 and the first surface S1 of the cover 1010 is directed toward the first region 251R of the windshield 250.

[0147] The instrument panel 1001 of a vehicle may be formed to include a second mirror 1320. In this regard, the instrument panel 1001 may include a first region 1001a that houses an image forming device 1100 and a mirror 1310, and a second region 1001b that houses the second mirror 1320. A cover 1010 may be formed at the upper end of the first region 1001a of the instrument panel 1001. The second mirror 1320 may be formed in the inner region of the second region 1001b of the instrument panel 1001. The inner region of the second region 1001b of the instrument panel 1001 may be formed to be inclined at a predetermined angle so that the second mirror 1320 is disposed at a second inclination angle.

[0148] The mirror 1310 may be configured to include a plane mirror 1311 and a phase retarder 1312. The surface of the plane mirror 1311 may be formed flat to reflect the optical signal formed in the PGU 1100 and reflected by the first surface S1 of the cover 1010. The phase retarder 1312 may be formed on the first surface of the plane mirror 1311. The phase retarder 1312 may be composed of a phase retardation layer to retard the phase of the polarization component of the optical signal reflected by the first surface S1 of the cover 1010.

[0149] The mirror 1310 may be formed at a first inclination angle with respect to the horizontal plane. The second mirror 1320 may be formed at a second inclination angle with respect to the horizontal plane. The second inclination angle of the second mirror 1320 may be formed to be greater than the first inclination angle of the mirror 1310. The first inclination angle of the mirror 1310 and the second inclination angle of the second mirror 1320 may be formed to have values less than 90 degrees.

[0150] The second inclination angle of the second mirror 1320 may be formed to be greater than the first inclination angle of the mirror 1310, while the second condensing region of the second mirror 1320 may be formed to be smaller than the first condensing region of the mirror 1310. The second length L2R of the second condensing region of the second mirror 1320 may be formed to be smaller than the first length L1R of the first condensing region of the mirror 1310. Accordingly, the second height between the cover 1010 and the second mirror 1320 can be kept low below the critical value. In addition, the height h1 from the lower end of the first mirror 1310 to the upper end of the second mirror 1320 can be kept low below the critical height.

[0151] On the other hand, the image forming apparatus 1100 can be disposed at a prescribed inclination angle α with respect to the horizontal plane. The inclination angle α of the image forming apparatus 1100 can be set to a value greater than the first inclination angle of the mirror 1310. The inclination angle α of the image forming apparatus 1100 can be set to a value greater than the second inclination angle of the second mirror 1320. The inclination angle α of the image forming apparatus 1100 can be set to a value greater than 60 degrees and less than 90 degrees. Therefore, the first inclination angle of the mirror 1310, the second inclination angle of the second mirror 1320, and the inclination angle α of the image forming apparatus 1100 can be formed to have values less than 90 degrees.

[0152] Since the inclination angle α of the image forming apparatus 1100 is less than 90 degrees, the optical signal emitted from the image forming apparatus 1100 can be reflected by the first surface S1 of the cover 1010 instead of by the mirror 1310. Since the inclination angle α of the image forming apparatus 1100 is greater than 60 degrees, the optical signal reflected by the first surface S1 of the cover 1010 can be incident on the mirror 1310 at an incident angle less than a prescribed angle. Thus, the first height between the cover 1010 and the mirror 1310 can be kept low below the critical value.

[0153] The cover 1010 can be configured to be adjustable according to the angle of the windshield 250 and the position of the eye box region of the vehicle driver so that sunlight does not flow in. The inclination angle of the cover 1010 can be formed to be greater than the first inclination angle of the mirror 1310 and less than the second inclination angle of the second mirror 1320.

[0154] The cover 1010 can include a polarizing film 1011 disposed on the first surface S1 and a polarizing film 1012 disposed on the second surface S2. The polarizing films 1011 and 1012 are formed to selectively transmit or reflect the optical signal according to the polarization component of the optical signal. According to the polarization state of the optical signal incident on the first surface S1 or the second surface S2 of the cover 1010, the cover 1010 can selectively reflect or transmit the optical signal. If the optical signal is the first polarization component, the first polarizing film 1011 or the second polarizing film 1012 is formed to reflect the optical signal. If the optical signal is the second polarization component, the first polarizing film 1011 or the second polarizing film 1012 is formed to transmit the optical signal. In this regard, the first polarization component can be formed as P polarization, and the second polarization component can be formed as S polarization, but it is not limited thereto and can be changed according to the application.

[0155] The second mirror 1320 may be configured to include a concave mirror 1321 and a second phase retarder 1322. In this regard, mirrors may be disposed inside and outside the cover 1010 of the vehicle image device implemented as an AR - HUD to ensure a large screen and a virtual image distance. The mirrors disposed inside and outside the cover 1010 may increase the height of the AR - HUD, and thus, occupy the largest volume in the vehicle image device. However, in this specification, the concave mirror 1321 is not disposed inside the cover 1010 but outside, so as to reduce the volume of the vehicle image device 1000. In particular, the volume of the vehicle image device 1000 can be reduced by disposing the concave mirror 1321 at the front end of the light trap part, which is an empty space inside the vehicle.

[0156] The surface of the concave mirror 1321 may be recessed to reflect the optical signal transmitted through the cover 1010. The second phase retarder 1322 may be formed on the first surface of the concave mirror 1321. The second phase retarder 1322 may be composed of a phase retardation layer to delay the phase of the polarization component of the optical signal transmitted through the cover 1010 within a specified range with 90 degrees as a reference.

[0157] On the other hand, the first polarizing film 1011 may be disposed on the first surface S1 of the cover 1010 to selectively transmit or reflect the optical signal according to the polarization component of the optical signal. The second polarizing film 1012 may be disposed on the second surface S2 of the cover 1010 to selectively transmit or reflect the optical signal according to the polarization component of the optical signal.

[0158] The first polarization component emitted from the PGU 1100 may be reflected by the first polarizing film 1011 and converted into a second polarization component by the phase retarder 1312 and the flat mirror 1311. The phase retarder 1312 may be implemented as a QWP (quarter - wave plate) that converts the first polarization component (e.g., P - polarized light) into a first circular polarization component (e.g., right - circularly polarized light). The first circular polarization component may be reflected by the reflecting surface (1310R) of the flat mirror 1311 and converted into a second circular polarization component (e.g., left - circularly polarized light). The reflected second circular polarization component passes through the phase retarder 1312 again and is converted into a second polarization component (e.g., S - polarized light).

[0159] The second polarization component can pass through the first polarizing film 1011 and the second polarizing film 1012 and be converted into the first polarization component again at the second phase retarder 1322 and the concave mirror 1321. The second phase retarder 1322 can be implemented as a QWP that converts the second polarization component (e.g., S polarization) into the second circular polarization component (e.g., left circular polarization). The second circular polarization component can be reflected by the reflecting surface of the concave mirror 1321 and converted into the first circular polarization component. The reflected first circular polarization component passes through the phase retarder 1312 again and is converted into the first polarization component (e.g., P polarization). The first polarization component converted at the second phase retarder 1322 can be reflected by the second polarizing film 1012 and directed toward the windshield 250.

[0160] On the other hand, the windshield 250 of the vehicle can be formed with different curvatures in different regions. In this regard, the windshield 250 can be formed with different curvatures in different regions to reflect the optical signal to the eye box region of the driver of the vehicle, enabling the driver to see a virtual image. The optical signal is the signal reflected by the second phase retarder 1321 of the second mirror 1320 and then reflected by the first surface S1 of the cover 1010. The optical signals reflected at the first position P1 and the second position P2 of the windshield 250 of the vehicle can be formed at the third position P3 and the fourth position P4 of the eye box. The first vertical distance between the first position P1 and the second position P2 can be formed to be greater than the second vertical distance between the third position P3 and the fourth position P4.

[0161] The vehicle image device 1000 can further include a motor 1315 that adjusts the first tilt angle of the mirror 1310, which is a plane mirror, with respect to the horizontal plane. The motor 1315 can be operably coupled to the plane mirror 1311. The motor 1315 can be attached to the second surface of the plane mirror 1311. The motor 1315 can be configured to adjust the first tilt angle of the mirror 1310, which is a plane mirror, with respect to the horizontal plane. The first tilt angle adjusted by the motor 1315 can be formed to be smaller than the second tilt angle of the second mirror 1320 with respect to the horizontal plane. By adjusting the first tilt angle using the motor 1315, the vertical positions of the third position P3 and the fourth position P4 can be changed. Accordingly, the visual field height in the vertical direction of the eye box region can be adjusted.

[0162] On the other hand, in the vehicle image device according to an embodiment of the present specification, the image forming device 1100 can also be disposed at an angle greater than 90 degrees with respect to the horizontal plane, and the cover 1010 can also be formed of a light-transmitting material. In this regard, Figure 11 shows the vehicle image device according to an embodiment. Figure 12 shows Figure 11 a cross-sectional view of the vehicle image device.

[0163] Referring to Figure 11 andFigure 12 The vehicle imaging device 1000b can be configured to include a cover 1010, an image forming device 1100b, a mirror 1310b, and a second mirror 1320b. The cover 1010 can form the appearance of the instrument panel 1001 of the vehicle. The image forming device 1100b and the mirror 1310b can be disposed inside the cover 1010.

[0164] The mirror 1310b can be disposed inside the instrument panel 1001 of the vehicle. The mirror 1310b can be formed to reflect the optical signal inside the instrument panel 1001.

[0165] The image forming device 1100b can be disposed inside the instrument panel 1001. The image forming device 1100b can be configured to form an optical signal to one side. The image forming device 1100b can be implemented by LCD or OLED or DLP or LCoS or micro LED.

[0166] The cover 1010 can form the appearance of the instrument panel 1001. The cover 1010 can include a first surface S1 and a second surface S2 that reflect or transmit an optical signal according to the incident angle. The second mirror 1320b can be disposed between the windshield 250 of the vehicle and the cover 1010. The second mirror 1320b can reflect the optical signal transmitted through the cover 1010 to the first surface S1 of the cover 1010. The second mirror 1320b can be formed to direct the optical signal reflected by the second mirror 1320b and the first surface S1 of the cover 1010 toward a specific area of the windshield 250.

[0167] The instrument panel 1001 of the vehicle can be formed to include the second mirror 1320b. Accordingly, the instrument panel 1001 can include a first area 1001a that houses the image forming device 1100b and the mirror 1310b, and a second area 1001b that houses the second mirror 1320. The cover 1010 can be formed at the upper end of the first area 1001a of the instrument panel 1001. The second mirror 1320b can be formed in the inner area of the second area 1001b of the instrument panel 1001. The inner area of the second area 1001b of the instrument panel 1001 can be formed to be inclined at a specified angle so that the second mirror 1320b is disposed at a fourth inclination angle.

[0168] The mirror 1310b can be configured to include a plane mirror 1311b and a phase retarder 1312b. The surface of the plane mirror 1311b can be formed flat to reflect the optical signal formed in the PGU1100b. The phase retarder 1312b can be formed on the first surface of the plane mirror 1311b. The phase retarder 1312b can be configured to retard the phase of the polarization component of the optical signal formed in the PGU1100b.

[0169] The mirror 1310b can be formed at a third inclination angle with respect to the horizontal plane. The second mirror 1320b can be formed at a fourth inclination angle with respect to the horizontal plane. The fourth inclination angle of the second mirror 1320b can be formed to be smaller than the third inclination angle of the mirror 1310b. The third inclination angle of the mirror 1310b can be formed to have a value greater than 90 degrees. The fourth inclination angle of the second mirror 1320 can be formed to have a value less than 90 degrees.

[0170] On the other hand, the image forming apparatus 1100 can be disposed inclined at a prescribed inclination angle β with respect to the horizontal plane. The inclination angle β of the image forming apparatus 1100 can be set to a value smaller than the third inclination angle of the mirror 1310b. The inclination angle β of the image forming apparatus 1100 can be set to a value greater than the fourth inclination angle of the second mirror 1320. The inclination angle β of the image forming apparatus 1100 and the third inclination angle of the mirror 1310b can be set to values greater than 90.

[0171] The second mirror 1320b can be configured to include a mirror 1321b and a second phase retarder 1322b. The mirror 1321b can be arranged to reflect the optical signal transmitted through the cover 1010. The second phase retarder 1322b can be formed on the first surface of the mirror 1321b. The second phase retarder 1322b can be configured to delay the phase of the polarization component of the optical signal transmitted through the cover 1010 within a prescribed range with 90 degrees as a reference.

[0172] Therefore, the vehicle-mounted imaging devices 1000, 1000b can utilize the dust cover 1010 originally used to prevent foreign matter from entering, and maximize the volume reduction effect through the multiple selective reflection / transmission optical system.

[0173] On the other hand, the height h2 from the lower end of the first mirror 1310b to the upper end of the second mirror 1320b can be greater than Figure 8 the height h1 from the lower end of the first mirror 1310 to the upper end of the second mirror 1320 in Thus, by shortening the height h1 from the lower end of the first mirror 1310 to the upper end of the second mirror 1320, the vehicle-mounted imaging device 1000 can ensure the freedom in the volume occupied when installed inside the vehicle. In this regard, compared to the vehicle-mounted imaging device 1000b, the vehicle-mounted imaging device 1000 can reduce the volume by more than about 10%. In addition, the vehicle-mounted imaging device 1000 has a volume reduction effect of more than 40% compared to the existing large-screen AR-HUDs on the market. The vehicle-mounted imaging device 1000 can be realized as an AR-HUD having a volume of about 9L or less inside the vehicle.

[0174] On the other hand, the vehicle image device of the present specification can be configured to display a plurality of images by arranging a plurality of mirrors in the lower region of the cover. In this regard, Figure 13 A cross-sectional view of a vehicle image device having a structure in which two mirrors are arranged in the lower region of the cover is shown. On the other hand, Figure 14 Associated with Figure 13 A vehicle image device having a structure in which two mirrors are arranged in the lower region of the cover is shown in association.

[0175] Referring to Figure 12 And Figure 13 The vehicle image device 1000 can be configured to include a cover 1010, an image forming device 1100, a mirror 1310, a second mirror 1320, and a third mirror 1330. The vehicle image device 1000 can be configured to arrange the mirror 1310 and the third mirror 1330 in the lower region of the cover to display a plurality of AR images.

[0176] The image forming device (PGU) 1100 can include various projection devices and a display capable of displaying pixels on a screen. The mirror 1310 implemented as a plane mirror is formed to change the optical path of the optical signal related to the first virtual image. The phase retarder 1311 provided on the mirror 1310 can retard the phase of the polarized light to change the linearly polarized light component of the light reflected by the cover 1010.

[0177] The second concave mirror 1331 provided on the third mirror 1330 can determine the curvature according to the magnification of the second virtual image. The second concave mirror 1331 is an optical reflecting mirror for realizing the second image. The third phase retarder 1332 provided on the third mirror 1330 can be configured to reflect the polarized light component of the second optical signal emitted from the display of the image forming device (PGU) 1100 and transmit it through the cover 1010.

[0178] The cover 1010 is configured to prevent foreign substances from flowing into the interior. The polarizing films 1011 and 1012 of the cover 1010 can selectively cause a transmission / reflection phenomenon according to the polarized light component of the light. The angle of the cover 1010 can be adjusted according to the angle of the windshield 250 and the position of the eye box region so that sunlight does not flow into the eye box region.

[0179] The concave mirror 1321 disposed on the second mirror 1320 can determine its shape according to the viewing angle (FOV) and magnification of the first virtual image. The phase retarder 1322 can change the polarization component by retarding the phase of the polarized light passing through the cover 1010 by 90 degrees. The windshield 250 can be configured on the vehicle frame to protect the driver from the external environment and ensure the field of view. The windshield 250 can reflect the light path emitted from the HUD toward the eye box area so that the driver can see a plurality of virtual images. The first virtual image displays functions such as direction indication and vehicle distance display that require AR functions, and is an image that transmits information about the environmental conditions during driving. The second virtual image can be an image that provides simple information such as speed display shown on the instrument panel using the indicator function. The eye box area is the area where the driver's field of view moves.

[0180] The motor 1315 can adjust the AR virtual image to match the driver's field of view height (short / normal / tall). The second motor 1335 can adjust the indicator virtual image to match the driver's field of view height (short / normal / tall).

[0181] Based on the above technical features, in order to simultaneously display the first virtual image and the second virtual image in the eye box area, the third mirror 1330 can be configured at a specific position. The third mirror 1330 can be configured between the mirror 1310 and the second mirror 1320. The third mirror 1330 can be formed to reflect the second optical signal so that the second optical signal is directed toward the second area of the windshield 250. The third mirror 1330 can be formed at a third tilt angle with respect to the horizontal plane. The third tilt angle of the third mirror 1330 can be formed to have a value greater than 90 degrees.

[0182] The second optical signal reflected by the third mirror 1330 can be formed in the eye box area. The second optical signal reflected at the fifth position P5 and the sixth position P6 of the windshield 250 can be formed at the third position P3 and the fourth position P4 of the eye box. The fifth position P5 of the windshield 250 can be formed between the first position P1 and the second position P2. The sixth position P6 of the windshield 250 can be formed at a position closer to the lower area than the second position P2. The third vertical distance between the fifth position P5 and the sixth position P6 of the windshield 250 can be formed to be less than the first vertical distance between the first position P1 and the second position P2.

[0183] The PGU1100 can emit an optical signal through the third area and a second optical signal through the fourth area simultaneously. The optical signal emitted through the third area of the PGU1100 can be incident on the first area 251R of the windshield 250 after being reflected by the mirror 1310 and the second mirror 1320. The second optical signal emitted through the fourth area of the PGU1100 is reflected by the third mirror 1330 and then directed to the second area 252R of the windshield 250. The first area 252R and the second area 252R of the windshield 250 can overlap in part of the area.

[0184] The third mirror 1330 can be configured to include a second concave mirror 1331 and a third phase retarder 1332. The surface of the second concave mirror 1331 can be recessed to reflect the second optical signal. The third phase retarder 1332 can be formed on the first surface of the second concave mirror 1331. The third phase retarder 1332 can be configured to retard the phase of the polarization component of the second optical signal.

[0185] An optical signal can be emitted with a first polarization component in the first area of the PGU1100. A second optical signal can be emitted with a second polarization component in the second area of the PGU1100. The second optical signal with the first polarization component can be converted to the first polarization component by the third phase retarder 1332 and the second concave mirror 1331. The third phase retarder 1332 can be implemented as a QWP. The first polarization component converted by the third phase retarder 1332 and the second concave mirror 1331 can pass through the first polarizing film 1011 and the second polarizing film 1012 and be directed towards the windshield 250.

[0186] The curvature of the concave mirror 1321 of the second mirror 1320 and the second concave mirror 1331 of the third mirror 1330 can be formed differently. The first curvature of the concave mirror 1321 can be determined according to the FOV (Field Of View) and the first magnification of the first virtual image displayed in the eye box area. The second curvature of the second concave mirror 1331 can be determined to be different from the first curvature according to the second magnification of the second virtual image displayed in the eye box area.

[0187] Under the action of the optical signal reflected in the first area of the dashboard 250, the first virtual image can be displayed in the eye box area. The first virtual image can display a first image and first information related to direction indication and vehicle distance display based on an AR (Augmented Reality) image. Under the action of the second optical signal reflected in the second area of the dashboard 250, the second virtual image can be displayed in the eye box area. The second virtual image can display a second image and second information associated with an indicator related to speed display shown on the dashboard of the vehicle.

[0188] On the other hand, the vehicle imaging device 1000 may include a motor 1315 for adjusting the first tilt angle of the concave mirror 1320 and a second motor 1335 for adjusting the third tilt angle of the second concave mirror 1330. The second motor 1335 may be operably coupled to the second concave mirror 1331 of the mirror 1330. The second motor 1335 may be configured to adjust the third tilt angle of the second concave mirror 1331 with respect to the horizontal plane. By adjusting the third tilt angle using the second motor 1335, the vertical positions of the third position P3 and the fourth position P4 of the windshield 250 are changed. Accordingly, the visual field height in the vertical direction of the eye box area can be adjusted.

[0189] Referring to Figures 6a to 14 , the control unit of the vehicle imaging device 1000 may be configured to adjust the visual field height in the vertical direction of the eye box area. The control unit may sense the line of sight of a user sitting in the driver's seat of the vehicle. The control unit may determine an area in which to arrange an area representing a plurality of images to be displayed on the windshield 250 based on the sensed line of sight height and viewing angle. The control unit may determine a specific area 251R where the center of the user's line of sight is located within the area for displaying the plurality of images and a predetermined distance Da of the second virtual image corresponding to the indicator. Based on the predetermined distance Da to be displayed of the second virtual image corresponding to the indicator, it may be controlled to display the second virtual image corresponding to the indicator at a specific position in the specific area 251R.

[0190] As described above, the vehicle imaging devices 1000 and 1000b on one aspect of the present specification have been described. Hereinafter, a vehicle having the vehicle imaging devices 1000 and 1000b on the other aspect of the present specification will be described. Regarding the above Figures 6a to 14 description of the vehicle imaging devices 1000 and 1000b and all descriptions regarding Figures 1 to 5 the vehicle 1 can be applied to the following vehicle having the vehicle imaging devices 1000 and 1000b. In this regard, Figure 15 FIG. shows a block diagram of a vehicle having the vehicle imaging device of the present specification.

[0191] Referring to Figures 1 to 15 , a vehicle having the vehicle imaging device of the present specification will be described. The vehicle 1 may be configured to include a windshield 250 and vehicle imaging devices 1000 and 1000b. The windshield 250 may be disposed at the front of the vehicle 1. The vehicle imaging devices 1000 and 1000b may be disposed inside the instrument panel 250 of the vehicle 1 and between the windshield 250 and the instrument panel 1001.

[0192] The vehicle imaging devices 1000 and 1000b may be configured to include an image forming device 1100, a cover 1010, a mirror 1310, and a second mirror 1320.

[0193] The cover 1010 can form the appearance of the instrument panel 1001 of the vehicle. An image forming device 1100 and a mirror 1310 can be disposed inside the cover 1010.

[0194] The mirror 1310 can be disposed inside the instrument panel 1001 of the vehicle. The mirror 1310 can be formed to reflect the optical signal inside the instrument panel 1001.

[0195] The image forming device 1100 can be disposed inside the instrument panel 1001. The image forming device 1100 can be configured to form an optical signal to one side. The image forming device 1100 can be implemented by LCD or OLED or DLP or LCoS or micro LED.

[0196] The cover 1010 can form the appearance of the instrument panel 1001. The cover 1010 can include a first surface S1 and a second surface S2 that reflect or transmit an optical signal according to the incident angle. A second mirror 1320 can be disposed between the windshield 250 of the vehicle and the cover 1010. The second mirror 1320 can reflect the optical signal transmitted through the cover 1010 to the first surface S1 of the cover 1010. The second mirror 1320 can be formed to direct the optical signal reflected by the second mirror 1320 and the first surface S1 of the cover 1010 toward the first region 251R of the windshield 250.

[0197] The mirror 1310 can be configured to include a plane mirror 1311 and a phase retarder 1312. The surface of the plane mirror 1311 can be formed flat to reflect the optical signal formed by the PGU1100 and reflected by the first surface S1 of the cover 1010. The phase retarder 1312 can be formed on the first surface of the plane mirror 1311. The phase retarder 1312 can be configured to retard the phase of the polarization component of the optical signal reflected by the first surface S1 of the cover 1010.

[0198] The mirror 1310 can be formed at a first inclination angle with respect to the horizontal plane. The second mirror 1320 can be formed at a second inclination angle with respect to the horizontal plane. The second inclination angle of the second mirror 1320 can be formed to be greater than the first inclination angle of the mirror 1310. The first inclination angle of the mirror 1310 and the second inclination angle of the second mirror 1320 can be formed to have a value less than 90 degrees.

[0199] The second tilt angle of the second mirror 1320 can be formed to be greater than the first tilt angle of the mirror 1310, and the second light condensing area of the second mirror 1320 can be formed to be smaller than the first light condensing area of the mirror 1310. The second length L2R of the second light condensing area of the second mirror 1320 can be formed to be smaller than the first length L1R of the first light condensing area of the mirror 1310. Thereby, the second height between the cover 1010 and the second mirror 1320 can be kept low below the critical value. In addition, the height h1 from the lower end of the first mirror 1310 to the upper end of the second mirror 1320 can be kept low below the critical height.

[0200] The cover 1010 can be configured to be adjustable so that sunlight does not flow in according to the angle of the windshield 250 and the position of the eye box area of the vehicle driver. The tilt angle of the cover 1010 can be formed to be greater than the first tilt angle of the mirror 1310 and less than the value of the second tilt angle of the second mirror 1320.

[0201] The cover 1010 can include a first surface S1 and a second surface S2 that selectively reflect or transmit an optical signal according to the polarization component of the optical signal. The cover 1010 can include a polarizing film 1011 disposed on the first surface S1 and a polarizing film 1012 disposed on the second surface S2, and the polarizing films 1011 and 1012 are formed to selectively reflect or transmit an optical signal according to the polarization component of the optical signal. In this regard, if the cover 1010 unconditionally transmits the optical signal, the volume of the vehicle imaging device will increase.

[0202] In this regard, if the height of a plurality of mirrors is shortened to reduce the volume of the vehicle imaging device, it may be difficult to ensure the optical performance of the vehicle imaging device. In this regard, the optical path difference between the upper end and the lower end of the virtual image displayed in the eye box area increases, and it may be difficult to ensure the optical performance. Therefore, in order to overcome the volume limitation of the vehicle imaging device, a structure that applies selective reflection / transmission once each using polarization can be used. However, in the structure that applies selective reflection / transmission once each, the volume reduction effect is not maximized, so there is still a limitation in the installation space inside the vehicle.

[0203] In this regard, if the incident angle of the optical signal incident on the first surface S1 or the second surface S2 of the cover 1010 is less than a specified angle based on the line perpendicular to the cover 1010, the polarizing films 1011 and 1012 are formed to transmit the optical signal. If the incident angle of the optical signal incident on the first surface S1 or the second surface S2 of the cover 1010 is equal to or greater than the specified angle based on the line perpendicular to the cover 1010, the polarizing films 1011 and 1012 are formed to reflect the optical signal.

[0204] The second mirror 1320 may be configured to include a concave mirror 1321 and a second phase retarder 1322. The surface of the concave mirror 1321 may be recessed to reflect the optical signal transmitted through the cover 1010. The second phase retarder 1322 may be formed on the first surface of the concave mirror 1321. The second phase retarder 1322 may be configured to delay the phase of the polarization component of the optical signal transmitted through the cover 1010 within a specified range with a reference of 90 degrees.

[0205] The vehicle image device 1000 may include a first polarizing film 1011 and a second polarizing film 1012. The first polarizing film 1011 may be disposed on the first surface S1 and configured to selectively transmit or reflect the optical signal according to the polarization component of the optical signal. The second polarizing film 1012 may be disposed on the second surface S2 and configured to selectively transmit or reflect the optical signal according to the polarization component of the optical signal.

[0206] The first polarization component emitted from the PGU 1100 may be reflected by the first polarizing film 1011 and converted into a second polarization component by the phase retarder 1312 and the flat mirror 1311. The second polarization component may pass through the first polarizing film 1011 and the second polarizing film 1012 and be converted into the first polarization component again by the second phase retarder 1312 and the concave mirror 1311. The first polarization component converted by the second phase retarder 1312 and the concave mirror 1311 may be reflected by the second polarizing film 1012 and directed toward the windshield 250.

[0207] Therefore, the vehicle image device 1000 can achieve a structural improvement for volume reduction by selectively reflecting twice and transmitting once by providing polarizing elements such as the polarizing films 1011 and 1012 on both surfaces of the cover 1010. The structure of this specification uses the cover 1010 as a flat surface and a reflecting surface inside to reduce the optical path difference between the upper and lower ends of the image, which is therefore beneficial to ensuring the optical performance.

[0208] The vehicle image device 1000 may be configured to include a cover 1010, an image forming device 1100, a mirror 1310, a second mirror 1320, and a third mirror 1330. The vehicle image device 1000 may be configured to dispose the mirror 1310 and the third mirror 1330 in the lower region of the cover to display a plurality of AR images.

[0209] The third mirror 1330 may be disposed between the mirror 1310 and the second mirror 1320. The third mirror 1330 may be formed to reflect the second optical signal and direct the second optical signal toward the second region of the windshield 250. The third mirror 1330 may be formed at a third inclination angle with reference to the horizontal plane. The third inclination angle of the third mirror 1330 may be formed to have a value greater than 90 degrees.

[0210] The third mirror 1330 may be configured to include a second concave mirror 1331 and a third phase retarder 1332. The surface of the second concave mirror 1331 may be recessed to reflect a second optical signal. The third phase retarder 1332 may be formed on a first surface of the second concave mirror 1331. The third phase retarder 1332 may be configured to retard the phase of the polarization component of the second optical signal.

[0211] An optical signal may be emitted with a first polarization component in a first region of the PGU 1100. A second polarization component may be emitted as a second optical signal in a second region of the PGU 1100. The second optical signal of the first polarization component may be converted into the first polarization component by the third phase retarder 1332 and the second concave mirror 1331. The third phase retarder 1332 may be implemented as a QWP. The first polarization component converted by the third phase retarder 1332 and the second concave mirror 1331 may pass through the first polarizing film 1011 and the second polarizing film 1012 and face the windshield 250.

[0212] The curvature of the concave mirror 1321 of the second mirror 1320 and the second concave mirror 1331 of the third mirror 1330 may be formed differently. The first curvature of the concave mirror 1321 may be determined according to the FOV (Field Of View) and the first magnification of the first virtual image displayed in the eye box region. The second curvature of the second concave mirror 1331 may be determined to be different from the first curvature according to the second magnification of the second virtual image displayed in the eye box region.

[0213] Under the action of the optical signal reflected in the first region of the instrument panel 250, the first virtual image may be presented in the eye box region. The first virtual image may display a first image and first information related to direction indication and vehicle distance display based on the AR image. Under the action of the second optical signal reflected in the second region of the instrument panel 250, the second virtual image may be displayed in the eye box region. The second virtual image may display a second image and second information associated with an indicator related to speed display shown on the vehicle dashboard.

[0214] The control unit of the vehicle imaging device 1000 or the vehicle 1 can be configured to adjust the visual field height in the vertical direction of the eye box area. The control unit can sense the line of sight of a user sitting in the driver's seat of the vehicle. The control unit can determine the configuration area of the display area of a plurality of images displayed on the windshield 250 based on the sensed line of sight height and viewing angle. The control unit can determine a specific area 251R where the center of the user's line of sight is located in the display area of the plurality of images and a specified distance Da of the second virtual image corresponding to the indicator. The second virtual image corresponding to the indicator can be controlled to be displayed at a specific position in the specific area 251R based on the specified display distance Da of the second virtual image corresponding to the indicator. Thereby, it is possible to update the display position of the indicator by reflecting the user's line of sight height, line of sight movement, and the distance between the signboard corresponding to the indicator and the vehicle in real time.

[0215] As described above, the vehicle imaging device with a reduced volume and the vehicle having the same according to the present specification have been described. The technical features of the vehicle imaging device with a reduced volume and the vehicle having the same according to the present specification can be summarized as follows, but are not limited thereto.

[0216] According to the present specification, the image forming device and the mirror are optimally arranged inside the cover of the instrument panel, and the second mirror is optimally arranged outside the cover, thereby enabling a vehicle imaging device with a reduced volume to be realized.

[0217] According to the present specification, the cover is configured to reflect or transmit the optical signal according to the incident angle, thereby enabling a vehicle imaging device to ensure a viewing angle (FOV) of a specific angle or more in a reduced volume manner due to the limited installation space of the large screen AR - HUD.

[0218] According to the present specification, a polarizing film is attached to at least one surface of the cover, thereby enabling a vehicle imaging device to ensure a viewing angle (FOV) of a specific angle or more in a reduced volume manner due to the limited installation space of the large screen AR - HUD.

[0219] According to the present specification, a vehicle imaging device can be realized that uses a plurality of mirrors to reflect different AR images through different areas of the windshield and provide them to the user's field of view.

[0220] According to the present specification, a vehicle imaging device can be realized that uses one imaging module to implement an image with a large aspect ratio for continuous images associated with driving - related information.

[0221] According to the present specification, by using the cover used to prevent foreign matter from entering, the volume reduction effect can be maximized through a multiple - selective reflection / transmission optical system.

[0222] According to this specification, it is possible to ensure the freedom of the volume occupied when installed inside a vehicle by reducing the height from the lower end of the first mirror to the upper end of the second mirror.

[0223] According to this specification, compared with the existing large-screen AR-HUDs on the market, it is possible to implement a vehicle imaging device with a volume reduction effect of more than 40%.

[0224] According to this specification, it is possible to provide a vehicle imaging device for an AR-HUD that can be implemented to have a volume of about 9 L or less inside a vehicle.

[0225] The effects of this specification are not limited to the effects mentioned above, and those skilled in the art can clearly understand other effects not mentioned through the description of the claims.

[0226] The aforementioned invention can be implemented by computer-readable code in a medium storing a program. Computer-readable media include all kinds of storage devices that store data readable by a computer system. Examples of computer-readable media include HDD (Hard Disk Drive), SSD (Solid State Disk), SDD (Silicon Disk Drive), ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage devices, etc. In addition, the computer may include a processor or a control unit. Therefore, the above detailed description should not be construed as restrictive in all aspects, but should be considered exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

Claims

1. An imaging device for a vehicle, wherein, Comprising: A mirror, disposed inside the instrument panel of a vehicle, for reflecting an optical signal inside the instrument panel; An image forming device, disposed inside the instrument panel, for forming the optical signal toward one side; A cover, forming the appearance of the instrument panel, including a first surface and a second surface that selectively reflect or transmit the optical signal according to the polarization component of the optical signal; And A second mirror, disposed between the windshield of the vehicle and the cover, for reflecting the optical signal that has passed through the cover to the first surface of the cover to direct the optical signal toward a first area of the windshield.

2. The vehicle image device according to claim 1, wherein The mirror includes: A plane mirror, having a flat surface formed to reflect the optical signal formed by the image forming device and reflected by the first surface of the cover; and A phase retarder, formed on the first surface of the plane mirror, for delaying the phase of the polarization component of the optical signal.

3. The vehicle image device according to claim 2, wherein The second mirror includes: A concave mirror, having a concave surface formed to reflect the optical signal that has passed through the first surface of the mirror; and A second phase retarder, formed on the first surface of the concave mirror, for delaying the phase of the polarization component of the optical signal within a specified range with 90 degrees as a reference.

4. The vehicle image device according to claim 3, wherein The cover includes: A first polarizing film, disposed on the first surface, for selectively transmitting or reflecting the optical signal according to the polarization component of the optical signal; and A second polarizing film, disposed on the second surface, for selectively transmitting or reflecting the optical signal according to the polarization component of the optical signal; A first polarization component emitted from the image forming device is reflected by the first polarizing film and converted into a second polarization component by the phase retarder and the plane mirror; The second polarization component passes through the first polarizing film and the second polarizing film and is converted into the first polarization component by the second phase retarder and the concave mirror; The first polarization component converted by the second phase retarder and the concave mirror is reflected by the second polarizing film and directed toward the windshield.

5. The vehicle image device according to claim 3, wherein The mirror is formed at a first inclination angle with respect to the horizontal plane, the second mirror is formed at a second inclination angle with respect to the horizontal plane, and the image forming device is formed at a specified inclination angle with respect to the horizontal plane; The second inclination angle is formed to be greater than the first inclination angle; The inclination angle of the image forming device is set to a value greater than the first inclination angle and the second inclination angle; The first inclination angle, the second inclination angle, and the inclination angle of the image forming device have values less than 90 degrees.

6. The vehicle image device according to claim 5, wherein The cover can be adjusted so that sunlight does not flow in according to the angle of the windshield and the position of the eye box area of the driver of the vehicle; The inclination angle of the cover is formed to be greater than the first inclination angle and less than the second inclination angle.

7. The vehicle image device according to claim 6, wherein, different regions of the windshield are formed with different curvatures so that the optical signal reflected by the second phase retarder of the second mirror and reflected by the first surface of the cover is reflected toward the eye box area of the driver of the vehicle, enabling the driver to see a virtual image; the optical signals reflected at the first position and the second position of the windshield are formed at the third position and the fourth position of the eye box; the first vertical distance between the first position and the second position is formed to be greater than the second vertical distance between the third position and the fourth position.

8. The vehicle image device according to claim 7, wherein, it further includes a motor, the motor is operably coupled to the flat mirror to adjust a first tilt angle of the flat mirror with respect to the horizontal plane; the first tilt angle is adjusted by the motor to change the vertical positions of the third position and the fourth position and to adjust the vertical field of view height of the eye box area.

9. The vehicle image device according to claim 8, wherein, it further includes a third mirror, the third mirror is disposed between the mirror and the second mirror and is formed to reflect a second optical signal to direct the second optical signal toward a second region of the windshield; the third mirror is formed at a third tilt angle with respect to the horizontal plane; the third tilt angle has a value greater than 90 degrees.

10. The vehicle image device according to claim 9, wherein, the second optical signals reflected at the fifth position and the sixth position of the windshield are formed at the third position and the fourth position of the eye box; the fifth position is formed between the first position and the second position, and the sixth position is formed at a position closer to the lower region than the second position; the third vertical distance between the fifth position and the sixth position is formed to be less than the first vertical distance between the first position and the second position.

11. The vehicle image device according to claim 9, wherein, the image forming device emits the optical signal through a third region and emits the second optical signal through a fourth region at the same time; the optical signal is reflected by the mirror and the second mirror and is incident on the first region of the windshield; the second optical signal is reflected by the third mirror and is incident on the second region of the windshield.

12. The vehicle image device according to claim 11, wherein, the third mirror includes: a second concave mirror, the surface of which is recessed to reflect the second optical signal; and a third phase retarder, formed on the first surface of the second concave mirror to delay the phase of the polarization component of the second optical signal; the optical signal is emitted with a first polarization component through the third region of the image forming device; the second optical signal is emitted with a second polarization component through the fourth region of the image forming device; the second optical signal with the second polarization component is converted to the first polarization component by the third phase retarder and the second concave mirror; The converted first polarization component passes through the first polarizing film and the second polarizing film and faces the windshield.

13. The vehicle image device according to claim 12, wherein the first curvature of the concave mirror is determined according to the FOV and the first magnification of the first virtual image displayed in the eye box area; the second curvature of the second concave mirror is determined to be different from the first curvature according to the second magnification of the second virtual image displayed in the eye box area.

14. The vehicle image device according to claim 13, wherein the first virtual image is based on the AR image and displays a first image and first information related to direction indication and vehicle distance display; the second virtual image is displayed as a second image and second information associated with an indicator related to the speed display shown on the instrument panel of the vehicle.

15. The vehicle image device according to claim 13, wherein it further includes a second motor, which is operably coupled to the second concave mirror to adjust a third tilt angle of the second concave mirror with respect to the horizontal plane; by adjusting the third tilt angle using the second motor, the vertical positions of the third position and the fourth position are changed and the field of view height in the vertical direction of the eye box area is adjusted.

16. A vehicle, wherein, Comprising: a windshield, configured at the front of the vehicle; and a vehicle image device, configured inside the instrument panel of the vehicle and between the windshield and the instrument panel; The vehicle image device includes: a mirror, configured inside the instrument panel of the vehicle to reflect the optical signal inside the instrument panel; an image forming device, configured inside the instrument panel to form the optical signal to one side; a cover, forming the appearance of the instrument panel, including a first surface and a second surface that selectively reflect or transmit the optical signal according to the polarization component of the optical signal; and a second mirror, configured between the windshield of the vehicle and the cover, to reflect the optical signal that has passed through the cover to the first surface of the cover so that the optical signal faces a first area of the windshield.

17. The vehicle image device according to claim 16, wherein the mirror includes: a plane mirror, having a flat surface formed to reflect the optical signal formed by the image forming device and reflected by the first surface of the cover; and a phase retarder, formed on the first surface of the plane mirror to delay the phase of the polarization component of the optical signal; The second mirror includes: a concave mirror, having a concave surface formed to reflect the optical signal that has passed through the first surface of the mirror; and a second phase retarder, formed on the first surface of the concave mirror to delay the phase of the polarization component of the optical signal within a specified range with 90 degrees as a reference.

18. The vehicle image device according to claim 17, wherein the cover includes: a first polarizing film, configured on the first surface, to selectively transmit or reflect the optical signal according to the polarization component of the optical signal; and a second polarizing film, configured on the second surface, to selectively transmit or reflect the optical signal according to the polarization component of the optical signal; The first polarized component emitted from the image forming device is reflected by the first polarizing film and converted into a second polarized component by the phase retarder and the plane mirror; The second polarized component passes through the first polarizing film and the second polarizing film and is converted into the first polarized component by the second phase retarder and the concave mirror; The first polarized component converted by the second phase retarder and the concave mirror is reflected by the second polarizing film and directed toward the windshield.

19. The vehicle image device according to claim 18, wherein, It further includes a third mirror disposed between the mirror and the second mirror and configured to reflect the second optical signal to direct the second optical signal toward a second area of the windshield; The third mirror is formed at a third tilt angle with respect to the horizontal plane, and the third tilt angle has a value greater than 90 degrees.

20. The vehicle image device according to claim 19, wherein, The third mirror includes: A second concave mirror having a concave surface formed to reflect the second optical signal; and A third phase retarder formed on a first surface of the second concave mirror to retard the phase of the polarized component of the second optical signal; The optical signal is emitted as a first polarized component in a third area of the image forming device; The second optical signal is emitted as a second polarized component in a fourth area of the image forming device; The second optical signal of the second polarized component is converted into a first polarized component by the third phase retarder and the second concave mirror; The converted first polarized component passes through the first polarizing film and the second polarizing film and is directed toward the windshield; The first curvature of the concave mirror is determined according to the FOV and the first magnification of the first virtual image displayed in the eye box area; The second curvature of the second concave mirror is determined to be different from the first curvature according to the second magnification of the second virtual image displayed in the eye box area.

Images