Vehicle-mounted display system, and vehicle

Abstract

A vehicle-mounted display system (100), and a vehicle (200). The vehicle-mounted display system (100) comprises: a first display panel (30), which is configured to emit first image light (L1); a second display panel (50), which is configured to emit second image light (L2); a flat lens (10), which is arranged on the same side of the first display panel (30) and the second display panel (50), is configured to receive the first image light (L1) and emit third image light (L3), and is further configured to receive the second image light (L2) and emit fourth image light (L4); and an imaging medium (70), which is arranged on the side of the flat lens (10) away from the first display panel (30) and the second display panel (50), is configured to receive and reflect the third image light (L3) for projection to form a first real image (A), and is further configured to receive and reflect the fourth image light (L4) for projection to form a second real image (B).

Description

Vehicle display system and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to a Chinese patent application filed with the China Patent Office on January 31, 2024, with application number 202410142073.8 and application name “Vehicle-mounted display system and vehicle,” the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to a vehicle-mounted display system and a vehicle using the vehicle-mounted display system. Background Art

[0004] In-vehicle display systems are typically located in the center of the center console, used for controlling the vehicle's controls and viewing vehicle information. However, when the driver looks down at the in-vehicle display system while driving, their line of sight wanders away from the road, potentially posing a significant safety hazard. A vehicle display system based on aerial imaging projects a real image into the air, allowing the driver to see the displayed information without looking down. However, the viewing angle of the real image in aerial imaging is limited, making it difficult for both the driver and front passenger to view the information simultaneously. Summary of the Invention

[0005] On one hand, the present application provides a vehicle-mounted display system, comprising:

[0006] A first display panel, configured to emit a first image light;

[0007] a second display panel, configured to emit a second image light;

[0008] a flat lens disposed on the same side of the first display panel and the second display panel, configured to receive the first image light and emit a third image light, and to receive the second image light and emit a fourth image light; and

[0009] An imaging medium is provided on a side of the flat lens away from the first display panel and the second display panel, and is used to receive and reflect the third image light to project a first real image, and to receive and reflect the fourth image light to project a second real image.

[0010] The in-vehicle display system provided in an embodiment of the present application, by providing a first display panel and a second display panel, and a flat-panel lens, can simultaneously project the contents displayed on the first and second display panels into the air through a single flat-panel lens, thereby forming independent first and second real images, respectively. By providing an imaging medium, the positions of the first and second real images can be adjusted by reflecting third and fourth image light, respectively, so that the first and second real images can be projected and displayed corresponding to the driver's seat and the front passenger seat, respectively, thereby achieving multi-perspective viewing and improving the viewing angle of the in-vehicle display system.

[0011] In one embodiment, the flat lens comprises an equivalent negative refractive index lens.

[0012] In one embodiment, the included angle between the first display panel and the flat lens is 30°-60°; the included angle between the second display panel and the flat lens is 30°-60°.

[0013] In one embodiment, the vehicle-mounted display system further includes a first reflector, which is arranged on a side of the first display panel and the second display panel away from the flat-panel lens; the first reflector is used to reflect the first image light emitted by the first display panel onto the flat-panel lens, and to reflect the second image light emitted by the second display panel onto the flat-panel lens.

[0014] In one embodiment, the vehicle-mounted display system further includes a second reflector and a third reflector, wherein the second reflector is arranged between the first display panel and the flat-panel lens, and is used to reflect the first image light emitted by the first display panel onto the flat-panel lens; the third reflector is arranged between the second display panel and the flat-panel lens, and is used to reflect the second image light emitted by the second display panel onto the flat-panel lens.

[0015] In one embodiment, the vehicle-mounted display system further includes a control module, which is electrically connected to the first display panel and the second display panel respectively, and is used to control the first display panel and the second display panel to display images.

[0016] In one embodiment, the vehicle-mounted display system further includes a light sensing module, which is electrically connected to the control module and configured to sense an interactive action and send a first interactive signal to the control module.

[0017] In one embodiment, the vehicle-mounted display system further includes a sound sensing module, which is electrically connected to the control module and is configured to receive a sound signal and send a second interactive signal to the control module.

[0018] On the other hand, the present application further provides a vehicle, comprising:

[0019] center console; and

[0020] The above-mentioned vehicle-mounted display system is partially embedded in the center console.

[0021] In one embodiment, the vehicle further includes a windshield, the windshield is disposed on one side of the center console, and the imaging medium is integrally formed with the windshield. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] FIG1 is a schematic structural diagram of a vehicle and a vehicle-mounted display system in one embodiment of the present application.

[0024] FIG2 is a schematic diagram of the optical path structure of the vehicle-mounted display system in one embodiment of the present application.

[0025] FIG3 is a schematic structural diagram of a flat lens in an embodiment of the present application.

[0026] FIG4 is a schematic diagram of the exploded structure of the flat lens in FIG3 .

[0027] FIG5 is a schematic diagram of the front view structure of a flat lens in one embodiment of the present application.

[0028] FIG6 is a schematic diagram of a partial structure of an optical waveguide array in one embodiment of the present application.

[0029] FIG. 7 is a schematic diagram of the optical path structure of a flat lens in one embodiment of the present application.

[0030] FIG8 is a schematic diagram of a planar optical path of an optical waveguide array in an embodiment of the present application.

[0031] FIG9 is a schematic diagram of a three-dimensional optical path of an optical waveguide array in an embodiment of the present application.

[0032] FIG10 is a schematic diagram of a partial optical path structure of a flat lens in one embodiment of the present application.

[0033] FIG11 is a schematic diagram of a portion of the optical path of the vehicle-mounted display system in one embodiment of the present application.

[0034] FIG12 is a schematic diagram of another portion of the optical path of the vehicle-mounted display system in one embodiment of the present application.

[0035] FIG13 is a schematic diagram of the electrical connection relationship of the vehicle-mounted display system in one embodiment of the present application.

[0036] FIG14 is a schematic structural diagram of a vehicle-mounted display system in another embodiment of the present application.

[0037] FIG15 is a schematic structural diagram of a vehicle-mounted display system in another embodiment of the present application.

[0038] Key Component Symbols: In-Vehicle Display System 100 Flat Lens 10 First Transparent Window 11 First Waveguide Array 13 Second Waveguide Array 15 Second Transparent Window 17 Waveguide 130 Reflection Unit 131 Reflection Film 133 Adhesive 140 First Reflector 20 First Display Panel 30 Second Reflector 40 Second Display Panel 50 Third Reflector 60 Imaging Medium 70 Control Module 90 Light Sensing Module 91 Sound Sensing Module 93 Vehicle 200 Center Console 210 Windshield 230 First Image Light L1 Second Image Light L2Third image light L3 Fourth image light L4 First real image A Second real image B Image source E Aerial real image E' Angles α, β, θ Incident angles α1, α2, α3, γ1, γ2, γ3 Reflection angles β1, β2, β3, δ1, δ2, δ3 Distance L First direction X Second direction Y Third direction Z

[0039] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0041] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0042] In order to further illustrate the technical means and effects adopted by this application to achieve the intended purpose, the following detailed description of this application is made in conjunction with the accompanying drawings and preferred implementation methods.

[0043] Referring to FIG. 1 , an in-vehicle display system 100 provided in an embodiment of the present application includes a flat-panel lens 10, a first display panel 30, a second display panel 50, and an imaging medium 70. The flat-panel lens 10 is disposed on one side of the first display panel 30 and the second display panel 50. The first display panel 30 is configured to emit a first image light L1, and the second display panel 50 is configured to emit a second image light L2. The flat-panel lens 10 is configured to receive the first image light L1 and emit a third image light L3, and also to receive the second image light L2 and emit a fourth image light L4. The imaging medium 70 is disposed on a side of the flat-panel lens 10 away from the first display panel 30 and the second display panel 50. The imaging medium 70 is configured to receive and reflect the third image light L3 to project a first real image A, and to receive and reflect the fourth image light L4 to project a second real image B.

[0044] Specifically, referring to FIG. 2 , an angle α is defined between the first display panel 30 and the flat lens 10. The side of the first display panel 30 facing the flat lens 10 is configured to emit a first image light L1. After entering the flat lens 10, the first image light L1 is converted by the flat lens 10 into a third image light L3 that is emitted. The third image light L3 is symmetrical with the first image light L1 along the flat lens 10. Therefore, the emitted third image light L3 converges in space to form a first real image A. The first real image A is symmetrical with the first display panel 30 about the flat lens 10, i.e., the first real image A also defines an angle α with the flat lens 10. An included angle β is formed between the second display panel 50 and the flat lens 10. The side of the second display panel 50 facing the flat lens 10 is used to emit the second image light L2. After the second image light L2 is incident on the flat lens 10, it is converted by the flat lens 10 into the fourth image light L4 that is emitted. The fourth image light L4 is symmetrical with the second image light L2 along the flat lens 10. Therefore, the emitted fourth image light L4 converges in the air to form a second real image B. The second real image B and the second display panel 50 are symmetrical about the flat lens 10. That is, the second real image B and the flat lens 10 also have an included angle β between them.

[0045] In this embodiment, the angle α between the first display panel 30 and the flat lens 10 is between 30° and 60°, and the angle β between the second display panel 50 and the flat lens 10 is between 30° and 60°. Angles α and β can be within the range of 30° and 60°, for example, 45°. Specifically, taking the first display panel 30 as an example, since the first display panel 30 and the first real image A are symmetrical about the flat lens 10, when the first display panel 30 and the flat lens 10 are at a certain angle, the first real image A also forms the same angle with the flat lens 10. By setting the angle α between the first display panel 30 and the flat lens 10 to be between 30° and 60°, the first real image A can be projected into space, facilitating user observation and interaction. Furthermore, the tilted first display panel 30 can project the first image light L1 substantially onto the flat lens 10, resulting in a higher brightness for the first real image A and improving light efficiency. Angles α and β can be the same or different, and this application does not impose any restrictions on this.

[0046] In this embodiment, the flat lens 10 is an equivalent negative refractive index lens, that is, light incident on the flat lens 10 will be emitted along a direction symmetrical to the flat lens 10. In other embodiments, the flat lens 10 can also be a dihedral corner reflector, which is not limited in this application.

[0047] 3 and 4 , in this embodiment, the flat lens 10 includes a first transparent window 11, a first optical waveguide array 13, a second optical waveguide array 15, and a second transparent window 17, which are stacked in sequence. The first transparent window 11 and the second transparent window 17 are made of transparent materials and are used to protect the first optical waveguide array 13 and the second optical waveguide array 15, respectively.

[0048] Specifically, the first optical waveguide array 13 includes a plurality of optical waveguides 130 arranged in sequence parallel to a first direction X, and the second optical waveguide array 15 includes a plurality of optical waveguides 130 arranged in sequence parallel to a second direction Y. The first direction X is perpendicular to the second direction Y; that is, the arrangement direction of the plurality of optical waveguides 130 in the first optical waveguide array 13 and the arrangement direction of the plurality of optical waveguides 130 in the second optical waveguide array 15 are mutually perpendicular. The first transparent window 11, the first optical waveguide array 13, the second optical waveguide array 15, and the second transparent window 17 are arranged in sequence along a third direction Z. The first and second optical waveguide arrays 13, 15 have the same thickness along the third direction Z, facilitating design and production.

[0049] The first transparent window 11 and the second transparent window 17 each have two optical surfaces, and the first transparent window 11 and the second transparent window 17 each have a transmittance of 90%-100% for light with a wavelength between 390nm and 760nm. The material of the first transparent window 11 and the second transparent window 17 can be glass or at least one of polymers such as plastic, acrylic resin, etc., and is used to protect the first optical waveguide array 13 or the second optical waveguide array 15 and filter out excess light. In other embodiments, if the strength of the first optical waveguide array 13 and the second optical waveguide array 15 after being tightly orthogonally bonded is sufficient, or if the installation environment has thickness restrictions, then only one transparent substrate may be configured or no transparent substrate may be configured at all, and this application does not impose any restrictions on this.

[0050] Referring to Figures 4 and 5 , the first and second waveguide arrays 13 and 15 are composed of multiple waveguides 130 with rectangular cross-sections. The length of each waveguide 130 is determined by the outer dimensions of the first and second waveguide arrays 13 and 15. Therefore, the waveguides 130 in the first and second waveguide arrays 13 and 15 vary in length. The waveguides 130 in the first waveguide array 13 extend along a first direction X, while the waveguides 130 in the second waveguide array 15 extend along a second direction Y. The waveguides 130 in the first and second waveguide arrays 13 and 15 extend perpendicularly to each other. That is, when viewed from a third direction Z (the thickness direction of the flat lens 10), the first and second waveguide arrays 13 and 15 are arranged orthogonally. This allows the two orthogonal light beams to converge at a single point, ensuring symmetry between the object and image planes (the light source side and the imaging side) relative to the flat lens 10. This results in equivalent negative refraction and enables aerial imaging.

[0051] The first optical waveguide array 13 or the second optical waveguide array 15 is composed of a plurality of parallel optical waveguides 130 arranged obliquely 30°-60° from the vertical direction in the user's perspective. Specifically, the first optical waveguide array 13 may be composed of a plurality of optical waveguides 130 arranged side by side at an angle θ of 30°-60° and having a rectangular cross-section, where the angle θ is the angle between the optical waveguides 130 and the vertical direction in the user's perspective. The second optical waveguide array 15 may be composed of optical waveguides 130 arranged side by side perpendicular to the optical waveguides 130 in the first optical waveguide array 13 and having a rectangular cross-section. In other embodiments, the arrangement directions of the optical waveguides 130 in the two optical waveguide arrays may be interchanged. For example, the optical waveguides 130 in the first optical waveguide array 13 extend along the second direction Y, while the optical waveguides 130 in the second optical waveguide array 15 extend along the first direction X. This is not a limitation of the present application. As long as the first and second optical waveguide arrays 13, 15, are arranged orthogonally from a third direction Z (thickness direction), so that the two orthogonal light beams converge at a point, and the object-image plane (light source side and imaging side) is symmetrical relative to the flat lens, generating an equivalent negative refraction phenomenon and achieving aerial imaging, this is within the scope of the present application. The optical waveguide 130 has an optical refractive index n1. In some embodiments, n1 is greater than 1.4, for example, n1 is 1.5, 1.8, 2.0, etc.

[0052] Referring to Figure 6 , for the first optical waveguide array 13 and the second optical waveguide array 15, each optical waveguide 130 has two intersecting surfaces with its adjacent optical waveguide 130, each intersecting surface being bonded by a highly translucent adhesive 140. Adhesive 140 can be a photosensitive adhesive or a thermosetting adhesive. The thickness of adhesive 503 is greater than 0.001 mm, for example, 0.002 mm, 0.003 mm, or 0.0015 mm. The specific thickness can be set according to specific needs. Adhesive 140 (not shown) can be provided between the first transparent window 11, the first optical waveguide array 13, the second optical waveguide array 15, and the second transparent window 17 of the flat lens 10 to enhance security.

[0053] The optical waveguide 130 includes a reflective unit 131 and a reflective film 133 disposed on one side or both sides of the reflective unit 131 along the arrangement direction of the multiple optical waveguides 130. Specifically, in this embodiment, the reflective film 133 is coated on both sides of each reflective unit 131 in the arrangement direction of the multiple optical waveguides 130. The material of the reflective film 133 can be a metal material such as aluminum, silver, or other non-metallic compound material that achieves total reflection. The function of the reflective film 133 is to prevent light from entering the adjacent optical waveguide array due to lack of total reflection, thereby forming stray light that affects imaging. In other embodiments, the reflective film 133 can also be coated on only one side of the optical waveguide 130. Each reflective unit 131 can also add a dielectric film on the reflective film 133 to improve light reflectivity.

[0054] The cross-sectional width of a single reflective unit 131 is 0.1mm-5mm, and the cross-sectional length is 0.1mm-5mm. In order to obtain a better imaging effect, the cross-sectional width can also be 0.1mm-2mm, and the cross-sectional length can also be 0.1mm-2mm. For example, the cross-sectional width is 0.2mm and the cross-sectional length is 0.2mm, or the cross-sectional width is 0.5mm and the cross-sectional length is 0.5mm. When displaying on a large screen, large-size requirements can be achieved by splicing multiple optical waveguide arrays. The overall shape of the first optical waveguide array 13 and the second optical waveguide array 15 is set according to the needs of the application scenario. In this embodiment, the first optical waveguide array 13 and the second optical waveguide array 15 are rectangular structures as a whole, the reflective units 131 at the two diagonals are triangular, and the reflective unit 131 in the middle is a trapezoidal structure. The lengths of the individual reflective units 131 are different. The reflective units 131 located at the diagonals of the rectangle are the longest, and the reflective units 131 at the two ends are the shortest. In addition, the flat lens 10 may further include an anti-reflection component and an angle control component (not shown). The anti-reflection component can improve the overall transmittance of the flat lens 10 and improve the clarity and brightness of the first real image A and the second real image B. The angle control component can be used to eliminate the afterimages of the first real image A and the second real image B, reduce the observer's dizziness, and prevent the observer from peeking into the interior of the vehicle display system 100 from other angles, thereby improving the overall aesthetics of the vehicle display system 100. The anti-reflection component and the angle control component can be combined or independently arranged between the first transparent window 11 and the first optical waveguide array 13, between the second transparent window 17 and the second optical waveguide array 15, between the first optical waveguide array 13 and the second optical waveguide array 15, on the side of the first transparent window 11 away from the first optical waveguide array 13, or on the side of the second transparent window 17 away from the second optical waveguide array 15.

[0055] The following explains the principle of aerial imaging achieved by the flat lens 10. Referring to Figures 7, 8, and 9, a mutually orthogonal double-layer waveguide array structure is used at the micrometer scale to perform orthogonal decomposition of any optical signal emitted by an image source E. The optical signal emitted by image source E is projected onto the first optical waveguide array 13 along a third direction Z and then diverges along a first direction X and a second direction Y. A rectangular coordinate system is established with the location of image source E as the origin, the first direction X as the x-axis, and the second direction Y as the y-axis. Within this rectangular coordinate system, the light emitted by image source E is decomposed into two mutually orthogonal beams that diverge along the x-axis and the y-axis, respectively. When light from image source E is incident on the first optical waveguide array 13, the light diverging along the y-axis is perpendicular to the multiple optical waveguides 130 in the first optical waveguide array 13. Therefore, it sequentially enters different optical waveguides 130. After entering the reflective film 133, it is totally reflected by the reflective film 133 and then exits the optical waveguide 130 at the same reflection angle as the incident angle. The light sequentially reflected by the multiple optical waveguides 130 in the first optical waveguide array 13 enters the second optical waveguide array 15 and passes directly through the second optical waveguide array 15, parallel to the multiple optical waveguides 130 extending along the y-axis in the second optical waveguide array 15, ultimately converging to form a partial aerial real image E'. Light diverging along the x-axis is parallel to the multiple waveguides 130 in the first waveguide array 13 and therefore passes directly through the first waveguide array 13 and enters the second waveguide array 15. It is then sequentially reflected by the multiple waveguides 130 in the second waveguide array 15 and then emitted, ultimately converging to form another portion of the aerial real image E'. That is, the light emitted from the image source E is decomposed into two beams diverging along the first direction X and the second direction Y, respectively, which are reflected by the first waveguide array 13 and the second waveguide array 15, ultimately converging to form the aerial real image E'. The aerial real image E' is symmetrical with the image source E about the flat lens 10. Therefore, light from any direction passing through the flat lens 10 can achieve mirror symmetry. Divergent light from any light source will converge to form an aerial real image at a symmetrical position upon passing through the flat lens 10. The imaging distance L of the aerial real image E' is the same as the distance from the flat lens 10 to the image source E, representing equidistant imaging. Furthermore, the aerial real image E' is located in mid-air, requiring no specific carrier, but rather presenting a real image directly in the air. Therefore, the image in the space seen by the user is formed by the convergence of light emitted by the image source E.

[0056] The above-described process occurs on the flat lens 10 when the light emitted by the image source E passes through the flat lens 10. Specifically, referring to FIG10 , the incident angles of the light emitted by the image source E on the three optical waveguides 130 in the first optical waveguide array 13 shown in FIG10 are α1, α2, and α3, respectively. The corresponding reflection angles of the light emitted by the image source E on the three optical waveguides 130 shown are β1, β2, and β3, where α1 = β1, α2 = β2, and α3 = β3. After reflection from the first optical waveguide array 13, the incident angles of the light emitted by the image source E on one of the optical waveguides 130 in the second optical waveguide array 15 shown in FIG10 are γ1, γ2, and γ3, respectively. The corresponding reflection angles on the optical waveguide 130 are δ1, δ2, and δ3, respectively, where γ1 = δ1, γ2 = δ2, and γ3 = δ3.

[0057] Furthermore, the incident angles of the image source E on the n optical waveguides 130 of the first optical waveguide array 13 are α1, α2, α3, ..., αn, respectively. The distance between the image source E and the flat lens 10 is L. Then, the distance between the imaging position of the aerial real image E' and the flat lens 10 is also L, and the viewing angle of the aerial real image E' is twice max(α).

[0058] It is understandable that if the size of the flat lens 10 is small, the image can only be seen at a certain distance from the imaging side of the flat lens 10; and if the size of the flat lens 10 is increased, a larger imaging distance can be achieved, thereby increasing the field of view.

[0059] The first and second optical waveguide arrays 13 and 15 have the same thickness, which simplifies the structural complexity of the first and second optical waveguide arrays 13 and 15, reduces the manufacturing difficulty of the first and second optical waveguide arrays 13 and 15, improves the production efficiency of the first and second optical waveguide arrays 13 and 15, and reduces the production cost of the first and second optical waveguide arrays 13 and 15. It should be noted that the thickness consistency here is a relative range, not an absolute consistency. That is, to improve production efficiency, a certain thickness difference between the optical waveguide arrays is acceptable without affecting the quality of aerial imaging.

[0060] In other embodiments, the flat lens 10 may also have other structures. For example, the flat lens 10 may include only one layer of an optical waveguide array (not shown), wherein the optical waveguide array includes a plurality of reflective units arranged in an array along a first direction X and a second direction Y. The reflective units are cubic columnar structures, and each reflective unit has four cylindrical surfaces coated with a reflective film. In other words, this single-layer optical waveguide array combines the first optical waveguide array 13 and the second optical waveguide array 15 into a single layer, and its imaging principle is the same as that of a stacked structure of the first optical waveguide array 13 and the second optical waveguide array 15.

[0061] Referring to Figures 2, 11, and 12, the first display panel 30 emits first image light L1 toward the flat lens 10, which is reflected by the flat lens 10 to produce third image light L3. These light ultimately converge on the side of the flat lens 10 away from the first display panel 30 to form a first real image A in space. The first real image A is symmetrical with the first display panel 30 with respect to the flat lens 10. The second display panel 50 emits second image light L2 toward the flat lens 10, which is reflected by the flat lens 10 to produce fourth image light L4. These light ultimately converge on the side of the flat lens 10 away from the second display panel 50 to form a second real image B in space. The second real image B is symmetrical with the second display panel 50 with respect to the flat lens 10. Since the flat lens 10 can symmetrically project light from one side to the other and is not restricted by the incident direction of light, the first display panel 30 and the second display panel 50 can be placed simultaneously on one side of the flat lens 10, thereby simultaneously projecting the first real image A and the second real image B in space through the single flat lens 10.

[0062] The first display panel 30 and the second display panel 50 may be flat display devices or three-dimensional display devices. Specifically, the first display panel 30 and the second display panel 50 can be two-dimensional display panels, such as display panels using cathode ray tube (CRT) display technology, liquid crystal display (LCD) technology, light emitting diode (LED) display technology, organic light emitting diode (OLED) display technology, quantum dot light emitting diode (QLED) display technology, plasma display panel (PDP) technology, micro light emitting diode (Micro LED) display technology, mini light emitting diode (Mini LED) display technology, digital light processing (DLP) display technology, etc., or can be a true three-dimensional display panel using holographic three-dimensional imaging technology, static volume imaging technology, translational volume scanning technology, rotational volume scanning technology, etc., or can be a pseudo three-dimensional display panel using the principle of binocular parallax of the human eye. This application does not impose any restrictions on this.

[0063] The light-emitting surfaces of the first display panel 30 and the second display panel 50 may also be coated with an anti-reflection film or a moth-eye film. Specifically, the anti-reflection film is used to increase the transmittance of light, while the moth-eye film can improve the resolution and anti-interference ability of the first display panel 30 and the second display panel 50.

[0064] Continuing with FIG. 1 , the first display panel 30 and the second display panel 50 are disposed at opposite ends of the flat lens 10. An imaging medium 70 is disposed on a side of the flat lens 10 away from the first display panel 30 and the second display panel 50, and is configured to reflect the third image light L3 and the fourth image light L4, thereby changing the positions of the first real image A and the second real image B, such that the first real image A and the second real image B face different directions. Specifically, in this embodiment, the imaging medium 70 is disposed at an angle relative to the flat lens 10 and parallel to the arrangement direction of the first display panel 30 and the second display panel 50. This reflects the third image light L3 and the fourth image light L4 in a direction perpendicular to the arrangement direction of the first display panel 30 and the second display panel 50, thereby flipping the positions of the first real image A and the second real image B. In other embodiments, the imaging medium 70 may be disposed in other positions as needed, and this is not a limitation of this disclosure.

[0065] Referring to Figure 13 , the in-vehicle display system 100 further includes a control module 90, a light sensing module 91, and a sound sensing module 93. The control module 90 is electrically connected to the first display panel 30 and the second display panel 50, respectively, for controlling the images displayed on the first display panel 30 and the second display panel 50. The light sensing module 91 is electrically connected to the control module 90 for sensing interactive actions and sending a first interactive signal to the control module 90. The sound sensing module 93 is electrically connected to the control module 90 for receiving sound signals and sending a second interactive signal to the control module 90.

[0066] Specifically, the control module 90 is used to adjust the display content of the first display panel 30 and the second display panel 50 according to the user's interactive operation, thereby completing the interaction with the user. The user's interactive operation may include interactive actions or interactive voice. The interactive action may include a gesture or a touch on the first real image A and the second real image B. The light sensing module 91 generates a first interactive signal by recognizing the gesture or the touch action directly acting on the first real image A and the second real image B. The sound sensing module 93 generates a second interactive signal by recognizing the user's interactive voice. The control module 90 adjusts the display content of the first display panel 30 and the second display panel 50 by analyzing the first interactive signal and the second interactive signal, thereby completing the human-computer interaction.

[0067] In this embodiment, the vehicle display system 100 may further include a speaker, which is electrically connected to the control module 90 for emitting sound. The control module 90 may also control the content emitted by the speaker according to the first interaction signal and the second interaction signal, thereby completing human-computer interaction.

[0068] Referring to FIG. 14 , in another embodiment, the in-vehicle display system 100 further includes a first reflector 20. The first reflector 20 is disposed on the side of the first display panel 30 and the second display panel 50 away from the flat-panel lens 10 and is configured to reflect the first image light L1 and the second image light L2, respectively, toward the flat-panel lens 10. Specifically, the difference from the previous embodiment is that the first image light L1 emitted by the first display panel 30 and the second image light L2 emitted by the second display panel 50 are reflected once by the first reflector 20 before being incident on the flat-panel lens 10, rather than being incident directly on the flat-panel lens 10. While the rest of the optical path of the in-vehicle display system 100 remains unchanged, the positions of the first display panel 30 and the second display panel 50 are symmetrically flipped about the first reflector 20. That is, the angle α between the first display panel 30 and the flat-panel lens 10 remains unchanged, but the first image light L1 is emitted toward the side away from the flat-panel lens 10 and reflected by the first reflector 20 before being incident on the flat-panel lens 10. By providing the first reflector 20 , the positions of the first display panel 30 and the second display panel 50 can be adjusted, thereby reducing the space of the vehicle display system 100 in a direction perpendicular to the flat lens 10 and improving space utilization.

[0069] Referring to FIG. 15 , in another embodiment, the in-vehicle display system 100 further includes a second reflector 40 and a third reflector 60. The second reflector 40 is disposed between the first display panel 30 and the flat-panel lens 10 and is configured to reflect the first image light L1 onto the flat-panel lens 10. The third reflector 60 is disposed between the second display panel 50 and the flat-panel lens 10 and is configured to reflect the second image light L2 onto the flat-panel lens 10. Specifically, the second reflector 40 is disposed perpendicular to the flat-panel lens 10. Compared to the embodiment shown in FIG. 1 , the position of the first display panel 30 is symmetrically flipped about the second reflector 40. The third reflector 60 is disposed perpendicular to the flat-panel lens 10. Compared to the embodiment shown in FIG. 1 , the position of the second display panel 50 is symmetrically flipped about the third reflector 60. By disposing the second reflector 40 and the third reflector 60, the positions of the first display panel 30 and the second display panel 50 can be adjusted, thereby reducing the space required by the in-vehicle display system 100 in the direction in which the first and second display panels 30 and 50 are arranged, thereby improving space utilization.

[0070] In other embodiments, different reflectors can be provided as needed to adjust the positions of the first display panel 30 and the second display panel 50, thereby adjusting the spatial layout of the in-vehicle display system 100. For example, depending on actual needs, half of the first reflector 20 can be provided to adjust the position of the first display panel 30, and a third reflector 60 can be provided to adjust the position of the second display panel 50; or the angle of the reflector relative to the flat lens 10 can be adjusted, etc. This application is not limited to this.

[0071] The in-vehicle display system 100 provided in the embodiment of the present application, by providing a first display panel 30 and a second display panel 50, and a flat-panel lens 10, can simultaneously project the contents displayed by the first display panel 30 and the second display panel 50 into the air through a single flat-panel lens 10, thereby forming independent first real images A and second real images B. By providing an imaging medium 70, the positions of the first real image A and the second real image B can be adjusted by respectively reflecting the third image light L3 and the fourth image light L4, thereby projecting and displaying the first real image A and the second real image B in different orientations, thereby achieving multi-viewing and improving the viewing angle of the in-vehicle display system 100.

[0072] Referring again to Figures 1, 14, and 15, an embodiment of the present application further provides a vehicle 200 comprising a center console 210 and the in-vehicle display system 100 according to any of the aforementioned embodiments, wherein the in-vehicle display system 100 is partially embedded in the center console 210. Specifically, a flat-panel lens 10 is embedded in the surface of the center console 210, and a first display panel 30 and a second display panel 50 are disposed within the center console 210, thereby projecting a first real image A and a second real image B onto the outside of the center console 210.

[0073] Vehicle 200 also includes a windshield 230, which is positioned on one side of the center console 210. In this embodiment, the imaging medium 70 of the in-vehicle display system 100 is integrally formed with the windshield 230. Specifically, the positions of vehicle 200 corresponding to the center console 210 include the driver's seat and the front passenger seat. The in-vehicle display system 100 is positioned in the center of the center console 210, that is, between the driver's seat and the front passenger seat. First image light L1 emitted by the first display panel 30 is converted into third image light L3 after passing through the flat lens 10. It is then reflected by the imaging medium 70 and converges to form a first real image A. The first real image A is positioned toward the driver's seat and has an angle α with the line of sight of a user sitting in the driver's seat and facing forward. The second image light L2 emitted by the second display panel 50 is converted into fourth image light L4 after passing through the flat lens 10. It is then reflected by the imaging medium 70 and converges to form a second real image B. The second real image B is positioned toward the front passenger seat, and the angle between it and the line of sight of the user sitting in the front passenger seat facing forward is equal to angle β. Therefore, when using the in-vehicle display system 100, the user in the driver's seat only needs to deflect their line of sight by angle α to observe the first real image A and obtain information from the first real image A. During this information acquisition process, the user's peripheral vision can still focus on the road and will not deviate from it, which is beneficial for improving driving safety. Furthermore, the user in the front passenger seat can also obtain information through the second real image B, meeting the needs of users from different perspectives.

[0074] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present application and are not intended to limit the present application. As long as they are within the spirit of the present application, appropriate changes and modifications to the above embodiments are within the scope of protection claimed in the present application.

Claims

1. A vehicle-mounted display system, characterized in that: include: A first display panel, configured to emit a first image light; a second display panel, configured to emit a second image light; a flat lens, disposed on the same side of the first display panel and the second display panel, for receiving the first image light and emitting a third image light, and for receiving the second image light and emitting a fourth image light; as well as An imaging medium is provided on a side of the flat lens away from the first display panel and the second display panel, and is used to receive and reflect the third image light to project a first real image, and to receive and reflect the fourth image light to project a second real image.

2. The vehicle-mounted display system according to claim 1, wherein: The flat plate lens includes an equivalent negative refractive index lens.

3. The vehicle-mounted display system according to claim 1, wherein: The included angle between the first display panel and the flat lens is 30°-60°; the included angle between the second display panel and the flat lens is 30°-60°.

4. The vehicle-mounted display system according to claim 1, wherein: The vehicle-mounted display system also includes a first reflector, which is arranged on a side of the first display panel and the second display panel away from the flat-panel lens; the first reflector is used to reflect the first image light emitted by the first display panel onto the flat-panel lens, and to reflect the second image light emitted by the second display panel onto the flat-panel lens.

5. The vehicle-mounted display system according to claim 1, wherein: The vehicle-mounted display system further includes a second reflector and a third reflector, wherein the second reflector is disposed between the first display panel and the flat-panel lens and is configured to reflect the first image light emitted by the first display panel onto the flat-panel lens; The third reflector is disposed between the second display panel and the flat lens, and is configured to reflect the second image light emitted by the second display panel onto the flat lens.

6. The vehicle-mounted display system according to claim 1, wherein: The vehicle-mounted display system further includes a control module, which is electrically connected to the first display panel and the second display panel respectively, and is used to control the first display panel and the second display panel to display images.

7. The vehicle-mounted display system according to claim 6, wherein: The vehicle-mounted display system further includes a light sensing module, which is electrically connected to the control module and is configured to sense a user's interactive action and send a first interactive signal to the control module.

8. The vehicle-mounted display system according to claim 6, wherein: The vehicle-mounted display system further includes a sound sensing module, which is electrically connected to the control module and is configured to receive a sound signal and send a second interactive signal to the control module.

9. A vehicle, characterized in that: include: center console; as well as The vehicle-mounted display system according to any one of claims 1 to 8, wherein the vehicle-mounted display system is partially embedded in the center console.

10. The vehicle according to claim 9, wherein: It also includes a windshield, which is arranged on one side of the center console, and the imaging medium is integrally formed with the windshield.

Images