Vehicle-mounted display system and vehicle

Abstract

The invention provides a vehicle-mounted display system, and the system comprises a first display panel which is used for emitting first image light; the second display panel is used for emitting second image light; the flat plate lens is arranged on the same side of the first display panel and the second display panel, and is used for receiving the first image light and emitting third image light, and is used for receiving the second image light and emitting fourth image light; and the imaging medium is arranged on one side, far away from the first display panel and the second display panel, of the flat lens, and is used for receiving and reflecting the third image light to form a first real image through projection and receiving and reflecting the fourth image light to form a second real image through projection. The invention further provides a vehicle using the vehicle-mounted display system.

Description

Technical Field

[0001] The present application relates to an in-vehicle display system and a vehicle applying the in-vehicle display system. Background Art

[0002] An in-vehicle display system is usually arranged in the middle of the console for central control operation of the vehicle or viewing vehicle information. However, during driving, when the driver looks down at the in-vehicle display system, the line of sight will deviate from the road surface, which may cause great potential safety hazards. An in-vehicle display system based on aerial imaging can project a real image in the air, enabling the driver to see the displayed information without looking down. However, the viewable angle range of the real image of aerial imaging is small and cannot meet the needs of both the driver and the co-driver to view simultaneously. Summary of the Invention

[0003] On the one hand, the present application provides an in-vehicle display system, including:

[0004] A first display panel for emitting first image light;

[0005] A second display panel for emitting second image light;

[0006] A flat lens arranged on the same side of the first display panel and the second display panel, for receiving the first image light and emitting third image light, and for receiving the second image light and emitting fourth image light; and

[0007] An imaging medium arranged on the side of the flat lens away from the first display panel and the second display panel, for receiving and reflecting the third image light to project and form a first real image, and for receiving and reflecting the fourth image light to project and form a second real image.

[0008] For the in-vehicle display system provided by the embodiments of the present application, by arranging the first display panel and the second display panel and a flat lens, the content displayed on the first display panel and the second display panel can be simultaneously projected into the air through a flat lens, so as to respectively form independent first and second real images. By arranging the imaging medium, the positions of the first real image and the second real image can be adjusted by respectively reflecting the third image light and the fourth image light, so that the first real image and the second real image can be respectively projected and displayed corresponding to the driver's seat and the co-driver's seat, thereby realizing multi-viewpoint viewing and increasing the viewing angle of the in-vehicle display system.

[0009] In one embodiment, the flat lens includes an equivalent negative refractive index lens.

[0010] 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°.

[0011] In one embodiment, the vehicle-mounted display system further includes a first reflector, which is disposed on a side of the first display panel and the second display panel away from the flat lens; the first reflector is configured to reflect the first image light emitted from the first display panel onto the flat lens, and is configured to reflect the second image light emitted from the second display panel onto the flat lens.

[0012] In one embodiment, the vehicle-mounted display system further includes a second reflector and a third reflector. The second reflector is disposed between the first display panel and the flat lens and is configured to reflect the first image light emitted from the first display panel onto the flat 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 from the second display panel onto the flat lens.

[0013] 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 configured to control the first display panel and the second display panel to display images.

[0014] In one embodiment, the vehicle-mounted display system further includes a light sensing module, which is electrically connected to the control module and is configured to sense interaction actions and send a first interaction signal to the control module.

[0015] 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 sound signals and send a second interaction signal to the control module.

[0016] On the other hand, the present application further provides a vehicle, including:

[0017] A center console; and

[0018] The above-mentioned vehicle-mounted display system, and a part of the vehicle-mounted display system is embedded in the center console.

[0019] In one embodiment, the vehicle further includes a windshield, which is disposed on one side of the center console, and the imaging medium is integrally formed with the windshield. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a vehicle and a vehicle-mounted display system in an embodiment of the present application.

[0021] Figure 2 It is a schematic optical path structure diagram of the vehicle-mounted display system in an embodiment of the present application.

[0022] Figure 3 Schematic structural diagram of a flat lens in an embodiment of the present application.

[0023] Figure 4 is Figure 3 exploded structural diagram of the flat lens in

[0024] Figure 5 Front view structural diagram of a flat lens in an embodiment of the present application.

[0025] Figure 6 Partial structural diagram of an optical waveguide array in an embodiment of the present application.

[0026] Figure 7 Optical path structural diagram of a flat lens in an embodiment of the present application.

[0027] Figure 8 Planar optical path diagram of an optical waveguide array in an embodiment of the present application.

[0028] Figure 9 Three-dimensional optical path diagram of an optical waveguide array in an embodiment of the present application.

[0029] Figure 10 Partial optical path structural diagram of a flat lens in an embodiment of the present application.

[0030] Figure 11 Partial optical path diagram of a vehicle-mounted display system in an embodiment of the present application.

[0031] Figure 12 Another partial optical path diagram of a vehicle-mounted display system in an embodiment of the present application.

[0032] Figure 13 Schematic diagram of the electrical connection relationship of a vehicle-mounted display system in an embodiment of the present application.

[0033] Figure 14 Schematic structural diagram of a vehicle-mounted display system in another embodiment of the present application.

[0034] Figure 15 Schematic structural diagram of a vehicle-mounted display system in yet another embodiment of the present application.

[0035] Description of main element symbols

[0036] Vehicle-mounted display system 100

[0037] Flat lens 10

[0038] First transparent window 11

[0039] First optical waveguide array 13

[0040] Second optical waveguide array 15

[0041] Second transparent window 17

[0042] Optical waveguide 130

[0043] Reflection unit 131

[0044] Reflection film 133

[0045] Adhesive 140

[0046] First reflector 20

[0047] First display panel 30

[0048] Second reflector 40

[0049] Second display panel 50

[0050] Third reflector 60

[0051] Imaging medium 70

[0052] Control module 90

[0053] Light sensing module 91

[0054] Sound sensing module 93

[0055] Vehicle 200

[0056] Console 210

[0057] Windshield 230

[0058] First image light L1

[0059] Second image light L2

[0060] Third image light L3

[0061] Fourth image light L4

[0062] First real image A

[0063] Second real image B

[0064] Image source E

[0065] Aerial real image E’

[0066] Angles α, β, θ

[0067] Incident angles α1, α2, α3, γ1, γ2, γ3 Reflection angles β1, β2, β3, δ1, δ2, δ3 Distance L

[0068] First direction X

[0069] Second direction Y

[0070] Third direction Z

[0071] The following specific embodiments will further illustrate the present application in conjunction with the above-mentioned drawings. Specific embodiments

[0072] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application.

[0073] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application.

[0074] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined purpose, the following detailed description of the present application is made with reference to the drawings and preferred embodiments.

[0075] Please refer to Figure 1 , the in-vehicle display system 100 provided by the embodiment of the present application includes: a flat lens 10, a first display panel 30, a second display panel 50, and an imaging medium 70. Among them, the flat 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 used to emit a first image light L1, and the second display panel 50 is used to emit a second image light L2. The flat lens 10 is used to receive the first image light L1 and emit a third image light L3, and is also used to receive the second image light L2 and emit a fourth image light L4. The imaging medium 70 is disposed on the side of the flat lens 10 away from the first display panel 30 and the second display panel 50, and is used to receive and reflect the third image light L3 to project and form a first real image A, and is also used to receive and reflect the fourth image light L4 to project and form a second real image B.

[0076] Specifically, please refer to Figure 2, there is an included angle α 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 used to emit the first image light L1. After the first image light L1 is incident on the flat lens 10, it is converted by the flat lens 10 into the third image light L3 and emitted. The third image light L3 is symmetric with the first image light L1 along the flat lens 10. Therefore, the third image light L3 after emission converges in the air to form the first real image A. The first real image A is symmetric with the first display panel 30 with respect to the flat lens 10, that is, there is also an included angle α between the first real image A and the flat lens 10. There is an included angle β 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 and emitted. The fourth image light L4 is symmetric with the second image light L2 along the flat lens 10. Therefore, the fourth image light L4 after emission converges in the air to form the second real image B. The second real image B is symmetric with the second display panel 50 with respect to the flat lens 10, that is, there is also an included angle β between the second real image B and the flat lens 10.

[0077] In this embodiment, the included angle α between the first display panel 30 and the flat lens 10 is 30° - 60°, and the included angle β between the second display panel 50 and the flat lens 10 is 30° - 60°. The included angle α and the included angle β can be a certain value within the range of 30° - 60°, such as 45°. Specifically, taking the first display panel 30 as an example, since the first display panel 30 and the first real image A are symmetric with respect to 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 is also at the same angle with the flat lens 10. By setting the included angle α between the first display panel 30 and the flat lens 10 to be 30° - 60°, the first real image A can be mapped in the air, facilitating the user's observation and interaction. Moreover, the inclined first display panel 30 can project the first image light L1 onto the flat lens 10 basically, so that the first real image A can have a higher brightness, which is beneficial to improving the light efficiency. The included angle α and the included angle β can be the same or different, and the present application does not limit this.

[0078] In this embodiment, the flat lens 10 is an equivalent negative refractive index lens, that is, the light incident on the flat lens 10 will be emitted along the direction symmetric with the flat lens 10. In other embodiments, the flat lens 10 can also be a dihedral angle reflector, and the present application does not limit this.

[0079] Please refer to Figure 3 and Figure 4, in this embodiment, the planar 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 that are sequentially stacked. Among them, the first transparent window 11 and the second transparent window 17 are made of transparent materials and are respectively used to protect the first optical waveguide array 13 and the second optical waveguide array 15.

[0080] Specifically, the first optical waveguide array 13 includes a plurality of optical waveguides 130 arranged in sequence parallel to the first direction X, and the second optical waveguide array 15 includes a plurality of optical waveguides 130 arranged in sequence parallel to the 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 is perpendicular to the arrangement direction of the plurality of optical waveguides 130 in the second optical waveguide array 15. 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 in the third direction Z. The thicknesses of the first optical waveguide array 13 and the second optical waveguide array 15 along the third direction Z are the same, which is convenient for design and production.

[0081] Both the first transparent window 11 and the second transparent window 17 have two optical surfaces, and both the first transparent window 11 and the second transparent window 17 have a transmittance of 90%-100% for light with a wavelength between 390 nm and 760 nm. The materials of the first transparent window 11 and the second transparent window 17 can be at least one of glass or polymers such as plastics and acrylic resins, and are 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 is sufficient after the first optical waveguide array 13 and the second optical waveguide array 15 are tightly orthogonally attached, or there are thickness limitations in the installation environment, then only one transparent substrate can also be configured or no transparent substrate can be configured at all. The present application does not limit this.

[0082] Please refer to Figure 4 and Figure 5, the first optical waveguide array 13 and the second optical waveguide array 15 are composed of a plurality of optical waveguides 130 with a rectangular cross-section. The lengths of the respective optical waveguides 130 are determined by the outer dimensions of the first optical waveguide array 13 and the second optical waveguide array 15. Therefore, the lengths of the multiple optical waveguides 130 in the first optical waveguide array 13 or the second optical waveguide array 15 are different. The multiple optical waveguides 130 in the first optical waveguide array 13 extend along the first direction X, and the multiple optical waveguides 130 in the second optical waveguide array 15 extend along the second direction Y. The extending directions of the optical waveguides 130 in the first optical waveguide array 13 and the second optical waveguide array 15 are perpendicular to each other. That is, when viewed from the third direction Z (the thickness direction of the flat lens 10), the first optical waveguide array 13 and the second optical waveguide array 15 are orthogonally arranged, so that two light beams in the orthogonal directions converge at a point, and it is ensured that the object plane and the image plane (the light source side and the imaging side) are symmetric with respect to the flat lens 10, generating an equivalent negative refraction phenomenon and realizing aerial imaging.

[0083] The first optical waveguide array 13 or the second optical waveguide array 15 is composed of a plurality of parallelly arranged optical waveguides 130 obliquely arranged at an angle of 30° - 60° with respect to the vertical direction in the user's perspective. Specifically, the first optical waveguide array 13 can be composed of a plurality of optical waveguides 130 with a rectangular cross-section arranged side by side at an angle θ of 30° - 60°. The angle θ is the angle between the optical waveguide 130 and the vertical direction in the user's perspective. The second optical waveguide array 15 can 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 groups of optical waveguide arrays can be interchanged. For example, the optical waveguides 130 in the first optical waveguide array 13 extend along the second direction Y, and the optical waveguides 130 in the second optical waveguide array 15 extend along the first direction X. The present application does not limit this, as long as it satisfies that when viewed from the third direction Z (the thickness direction), the first optical waveguide array 13 and the second optical waveguide array 15 are orthogonally arranged, so that two light beams in the orthogonal directions converge at a point, and it is ensured that the object and image planes (the light source side and the imaging side) are symmetric with respect to the flat lens, generating an equivalent negative refraction phenomenon and realizing aerial imaging, all are within the scope of the present application. Among them, the optical waveguide 130 has an optical refractive index n1. In some embodiments, n1 > 1.4. For example, n1 takes values such as 1.5, 1.8, 2.0, etc.

[0084] Please refer to Figure 6, for the first optical waveguide array 13 and the second optical waveguide array 15, there are two interfaces between each optical waveguide 130 and its adjacent optical waveguide 130, and each interface is joined by an adhesive 140 with good light transmittance. The adhesive 140 can be a photosensitive adhesive or a thermosetting adhesive. The thickness of the adhesive 503 is greater than 0.001 mm, such as 0.002 mm or 0.003 mm or 0.0015 mm, and the specific thickness can be set according to specific needs. Adhesives 140 (not shown in the figure) 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 in the flat lens 10 to increase firmness.

[0085] The optical waveguide 130 includes a reflection unit 131 and a reflection film 133 disposed on one side or two sides of the reflection unit 131 along the arrangement direction of the plurality of optical waveguides 130. Specifically, in this embodiment, on both sides of each reflection unit 131 in the arrangement direction of the plurality of optical waveguides 130, a reflection film 133 is plated. The material of the reflection film 133 can be a metal material such as aluminum or silver that can achieve total reflection or other non-metal compound materials. The function of the reflection film 133 is to prevent light from entering the adjacent optical waveguide array due to non-total reflection and forming stray light that affects imaging. In other embodiments, the reflection film 133 can also be plated only on one side of the optical waveguide 130. Each reflection unit 131 can also add a dielectric film on the reflection film 133 to improve the light reflectivity.

[0086] The cross-sectional width of a single reflection unit 131 is 0.1 mm - 5 mm, and the cross-sectional length is 0.1 mm - 5 mm. To obtain a better imaging effect, the cross-sectional width can also be 0.1 mm - 2 mm, and the cross-sectional length can also be 0.1 mm - 2 mm. For example, the cross-sectional width is 0.2 mm and the cross-sectional length is 0.2 mm, or the cross-sectional width is 0.5 mm and the cross-sectional length is 0.5 mm. When used for large-screen display, the large-size requirement can be achieved by splicing multiple light waveguide arrays. The overall shapes of the first light waveguide array 13 and the second light waveguide array 15 are set according to the application scenario requirements. In this embodiment, the first light waveguide array 13 and the second light waveguide array 15 are both in a rectangular structure as a whole, and the reflection units 131 at two diagonals are triangular, while the reflection units 131 in the middle are in a trapezoidal structure. The lengths of the single reflection units 131 are not equal. The reflection units 131 located on the diagonal of the rectangle have the longest length, and the reflection units 131 at both ends have the shortest length. In addition, the flat lens 10 may further include an anti-reflection component and a viewing angle control component (not shown in the figure). The anti-reflection component can improve the overall transmittance of the flat lens 10 and enhance the clarity and brightness of the first real image A and the second real image B. The viewing angle control component can be used to eliminate the afterimage of the first real image A and the second real image B, reduce the dizziness of the observer, and at the same time prevent the observer from peeping into the interior of the vehicle-mounted display system 100 from other angles, thereby enhancing the overall aesthetics of the vehicle-mounted display system 100. Among them, the anti-reflection component and the viewing angle control component can be combined, or they can be separately and independently disposed between the first transparent window 11 and the first light waveguide array 13, between the second transparent window 17 and the second light waveguide array 15, between the first light waveguide array 13 and the second light waveguide array 15, on the side of the first transparent window 11 away from the first light waveguide array 13, or on the side of the second transparent window 17 away from the second light waveguide array 15.

[0087] The principle of the flat lens 10 for realizing aerial imaging will be explained below. Please refer to Figure 7 , Figure 8 and Figure 9, at the micron scale, a mutually orthogonal double-layer waveguide array structure is used to orthogonally decompose any optical signal emitted by the image source E. The optical signal emitted by the image source E is projected onto the first optical waveguide array 13 along the third direction Z and diverges along the first direction X and the second direction Y. Taking the position of the image source E as the origin, the first direction X as the x-axis, and the second direction Y as the y-axis, a rectangular coordinate system is established for the light emitted by the image source E, and the light emitted by the image source E is decomposed into two mutually orthogonal beams of light that diverge along the x-axis and the y-axis respectively in this rectangular coordinate system. When the light emitted by the image source E is incident on the first optical waveguide array 13, the light that diverges along the y-axis is perpendicular to the multiple optical waveguides 130 on the first optical waveguide array 13, so it is incident on different optical waveguides 130 in sequence, and after being incident on the reflection film 133, it is totally reflected and emitted from the optical waveguide 130 by the reflection film 133 at the same reflection angle as the incident angle. The light that is sequentially reflected and emitted by the multiple optical waveguides 130 in the first optical waveguide array 13 is incident on the second optical waveguide array 15 and is parallel to the multiple optical waveguides 130 extending along the y-axis in the second optical waveguide array 15, directly passes through the second optical waveguide array 15, and finally converges to form a partial virtual image E' in the air. The light that diverges along the x-axis is parallel to the multiple optical waveguides 130 on the first optical waveguide array 13, so it directly passes through the first optical waveguide array 13 and is incident on the second optical waveguide array 15, and is sequentially reflected and emitted by the multiple optical waveguides 130 in the second optical waveguide array 15, and finally converges to form another partial virtual image E' in the air. That is to say, the light emitted from the image source E is decomposed into two beams of light that diverge along the first direction X and the second direction Y, and are respectively reflected by the first optical waveguide array 13 and the second optical waveguide array 15, and finally converge to form a virtual image E' in the air, and the virtual image E' is symmetric with the image source E about the flat lens 10. Therefore, the light rays in any direction can achieve mirror symmetry after passing through the flat lens 10, and the divergent light of any light source will converge again at the symmetric position to form a virtual image in the air after passing through the flat lens 10. The imaging distance L of the virtual image E' is the same as the distance from the flat lens 10 to the image source E, which is equal-distance imaging, and the position of the virtual image E' is in the air, without a specific carrier, but directly presenting a virtual image in the air. Therefore, the image seen by the user in the space is formed by the convergence of the light emitted by the image source E.

[0088] When the light emitted by the image source E passes through the flat lens 10, the above process occurs on the flat lens 10. Specifically, please refer to Figure 10 , 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 Figure 10 are α1, α2, and α3 respectively, and 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, α3 = β3. After being reflected by the first optical waveguide array 13, in Figure 10The incident angles on one of the optical waveguides 130 on the shown second optical waveguide array 15 are γ1, γ2, and γ3 respectively, and the corresponding reflection angles on the optical waveguide 130 are δ1, δ2, and δ3 respectively, where γ1 = δ1, γ2 = δ2, and γ3 = δ3.

[0089] Furthermore, the incident angles of the image source E on 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 imaging position of the virtual image E' in the air is also L away from the flat lens 10, and the viewing angle of the virtual image E' in the air is 2 times max(α).

[0090] It can be understood 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; while if the size of the flat lens 10 becomes larger, a larger imaging distance can be achieved, thereby increasing the field of view rate.

[0091] The first optical waveguide array 13 and the second optical waveguide array 15 have the same thickness, which can simplify the complexity of the structures of the first optical waveguide array 13 and the second optical waveguide array 15, reduce the manufacturing difficulty of the first optical waveguide array 13 and the second optical waveguide array 15, improve the production efficiency of the first optical waveguide array 13 and the second optical waveguide array 15, and reduce the production cost of the first optical waveguide array 13 and the second optical waveguide array 15. It should be noted that the same thickness here is a relative range, not absolutely the same, that is, for the purpose of improving production efficiency, a certain thickness difference can exist between the optical waveguide arrays on the premise of not affecting the air imaging quality.

[0092] In other embodiments, the flat lens 10 can also be of other structures. For example, the flat lens 10 only includes a single layer of optical waveguide array (not shown in the figure). The optical waveguide array includes a plurality of reflection units arranged in an array along the first direction X and the second direction Y. The reflection units are cubic columnar structures, and reflective films are coated on the four cylindrical surfaces of each reflection unit. That is, this single-layer optical waveguide array combines the first optical waveguide array 13 and the second optical waveguide array 15 into one layer, and its imaging principle is the same as that of the stacked structure of the first optical waveguide array 13 and the second optical waveguide array 15.

[0093] Please refer to Figure 2 、 Figure 11 and Figure 12, the first display panel 30 emits the first image light L1 towards the flat lens 10, and is reflected by the flat lens 10 to emit the third image light L3, and finally converges on the side of the flat lens 10 away from the first display panel 30 to form the first real image A in the air. The first real image A is symmetric with the first display panel 30 with respect to the flat lens 10. The second display panel 50 emits the second image light L2 towards the flat lens 10, and is reflected by the flat lens 10 to emit the fourth image light L4, and finally converges on the side of the flat lens 10 away from the second display panel 50 to form the second real image B in the air. The second real image B is symmetric with the second display panel 50 with respect to the flat lens 10. Since the flat lens 10 can symmetrically project the light on one side to the other side and is not restricted by the incident direction of the light, the first display panel 30 and the second display panel 50 can be placed on one side of the flat lens 10 at the same time, so that the first real image A and the second real image B in the air can be projected simultaneously through one flat lens 10.

[0094] The first display panel 30 and the second display panel 50 can be a flat display device or a three-dimensional display device. Specifically, the first display panel 30 and the second display panel 50 can be two-dimensional display panels. For example, 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 diodes (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. can also be three-dimensional display panels that truly realize three-dimensional display using holographic three-dimensional imaging technology, static volume imaging technology, translational volume scanning technology, rotational volume scanning technology, etc., or pseudo-three-dimensional display panels using the binocular parallax principle of the human eye. This application does not limit this.

[0095] The light-emitting surfaces of the first display panel 30 and the second display panel 50 can 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, and the moth-eye film can improve the resolution and anti-interference ability of the first display panel 30 and the second display panel 50.

[0096] Please continue to refer to Figure 1 Figure 1 , the first display panel 30 and the second display panel 50 are disposed at opposite ends of the flat lens 10, and the 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 for reflecting 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 can face different directions. Specifically, in this embodiment, the imaging medium 70 is disposed obliquely with respect to the flat lens 10, and the imaging medium 70 is parallel to the arrangement direction of the first display panel 30 and the second display panel 50, so as to reflect 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, according to the usage requirements, the imaging medium 70 can also be disposed at other positions, and the present application does not limit this.

[0097] Please refer to Figure 13 Figure 13 , the vehicle-mounted 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 interaction actions and sending a first interaction signal to the control module 90. The sound sensing module 93 is electrically connected to the control module 90 for receiving sound signals and for sending a second interaction signal to the control module 90.

[0098] Specifically, the control module 90 is configured to adjust the display content of the first display panel 30 and the second display panel 50 according to the interaction operations of the user, thereby completing the interaction with the user. The interaction operations of the user may include interaction actions or interaction voices. The interaction actions may include gestures or touches on the first real image A and the second real image B. The light sensing module 91 generates a first interaction signal by recognizing gestures or touch actions directly acting on the first real image A and the second real image B. The sound sensing module 93 generates a second interaction signal by recognizing the interaction voices of the user. The control module 90 analyzes the first interaction signal and the second interaction signal to adjust the display content of the first display panel 30 and the second display panel 50, thereby completing the human-machine interaction.

[0099] In this embodiment, the vehicle-mounted display system 100 may further include a speaker, and the speaker is electrically connected to the control module 90 for emitting sounds. 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 the human-machine interaction.

[0100] Please refer to Figure 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 lens 10, and is configured to reflect the first image light L1 and the second image light L2 onto the flat lens 10 respectively. 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 incident on the flat lens 10 after being reflected once by the first reflector 20, rather than directly incident on the flat lens 10. When other parts of the optical path of the in-vehicle display system 100 remain unchanged, the positions of the first display panel 30 and the second display panel 50 are symmetrically flipped with the first reflector 20 as the axis. That is, the value of the angle α between the first display panel 30 and the flat lens 10 remains unchanged, but the first image light L1 is emitted toward the side away from the flat lens 10 and is incident on the flat lens 10 after being reflected by the first reflector 20. 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 in-vehicle display system 100 in the direction perpendicular to the flat lens 10 and improving the space utilization rate.

[0101] Please refer to Figure 15 , in yet 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 lens 10 and is configured to reflect the first image light L1 onto the flat lens 10. The third reflector 60 is disposed between the second display panel 50 and the flat lens 10 and is configured to reflect the second image light L2 onto the flat lens 10. Specifically, the second reflector 40 is disposed perpendicular to the flat lens 10. Compared with the embodiment shown in Figure 1 , the position of the first display panel 30 is symmetrically flipped with the second reflector 40 as the axis. The third reflector 60 is disposed perpendicular to the flat lens 10. Compared with the embodiment shown in Figure 1 , the position of the second display panel 50 is symmetrically flipped with the third reflector 60 as the axis. By providing 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 of the in-vehicle display system 100 in the arrangement direction of the first display panel 30 and the second display panel 50 and improving the space utilization rate.

[0102] In other embodiments, different reflectors may also be provided according to actual needs, so as to change the positions of the first display panel 30 and the second display panel 50, and further adjust the spatial layout of the vehicle-mounted display system 100. For example, according to actual needs, a half of the first reflector 20 may be provided to change the position of the first display panel 30, and a third reflector 60 may be provided to adjust the position of the second display panel 50; or the angle of the reflector relative to the flat lens 10 may be adjusted, etc. The present application does not limit this.

[0103] The vehicle-mounted display system 100 provided by the embodiments of the present application, by providing the first display panel 30 and the second display panel 50, and providing the flat lens 10, can project the content displayed on the first display panel 30 and the second display panel 50 into the air through a flat lens 10 at the same time, so as to respectively form independent first real images A and second real images B. By providing the 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, so that the first real image A and the second real image B can be projected and displayed corresponding to different orientations respectively, and further realize multi-viewpoint viewing, and improve the viewing angle of the vehicle-mounted display system 100.

[0104] Please refer to Figure 1 、 Figure 14 and Figure 15 again, the embodiments of the present application further provide a vehicle 200, which includes a center console 210 and the vehicle-mounted display system 100 of any of the above embodiments, and a part of the vehicle-mounted display system 100 is embedded in the center console 210. Specifically, the flat lens 10 is embedded on the surface of the center console 210, and the first display panel 30 and the second display panel 50 are arranged inside the center console 210, so as to project the first real image A and the second real image B to the outside of the center console 210.

[0105] The vehicle 200 further includes a windshield 230 disposed 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 position of the vehicle 200 corresponding to the center console 210 includes a driver's seat and a passenger seat. The in-vehicle display system 100 is disposed at the middle position of the center console 210, that is, between the driver's seat and the passenger seat. The first image light L1 emitted by the first display panel 30 is converted into the third image light L3 after passing through the flat lens 10, and is reflected by the imaging medium 70 and then converges to form a first real image A. The first real image A is disposed toward the driver's seat, and the angle between the first real image A and the line of sight of the user sitting on the driver's seat and looking straight ahead is equal to the angle α. The second image light L2 emitted by the second display panel 50 is converted into the fourth image light L4 after passing through the flat lens 10, and is reflected by the imaging medium 70 and then converges to form a second real image B. The second real image B is disposed toward the passenger seat, and the angle between the second real image B and the line of sight of the user sitting on the passenger seat and looking straight ahead is equal to the angle β. Therefore, when using the in-vehicle display system 100, the user sitting on the driver's seat only needs to deflect the line of sight by an angle of α to observe the first real image A, so as to obtain information from the first real image A. During the process of obtaining information, the user's peripheral vision can still focus on the road surface and will not deviate from the road surface, which is beneficial to improving driving safety. And the user sitting on the passenger seat can also obtain information through the second real image B, meeting the usage requirements from different perspectives.

[0106] Those of ordinary skill in the art in this technical field should recognize that the above embodiments are only used to illustrate the present application, rather than to limit the present application. As long as within the scope of the substantial spirit of the present application, appropriate changes and variations made to the above embodiments fall within the scope claimed by the present application.

Claims

1. A vehicle-mounted display system, characterized in that, Comprising: A first display panel for emitting first image light; A second display panel for emitting 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 third image light, and for receiving the second image light and emitting fourth image light; And An imaging medium disposed on the side of the flat lens away from the first display panel and the second display panel, for receiving and reflecting the third image light to project and form a first real image, and for receiving and reflecting the fourth image light to project and form a second real image.

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

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

4. The vehicle-mounted display system according to claim 1, characterized in that, The vehicle-mounted display system further includes a first reflector disposed on the side of the first display panel and the second display panel away from the flat lens; the first reflector is used for reflecting the first image light emitted by the first display panel onto the flat lens, and for reflecting the second image light emitted by the second display panel onto the flat lens.

5. The in-vehicle display system according to claim 1, characterized in that, The vehicle-mounted display system further includes a second reflector and a third reflector, the second reflector is disposed between the first display panel and the flat lens, for reflecting the first image light emitted by the first display panel onto the flat lens; The third reflector is disposed between the second display panel and the flat lens, for reflecting the second image light emitted by the second display panel onto the flat lens.

6. The in-vehicle display system according to claim 1, characterized in that, The vehicle-mounted display system further includes a control module electrically connected to the first display panel and the second display panel respectively, for controlling the first display panel and the second display panel to display images.

7. The in-vehicle display system according to claim 6, characterized in that, The vehicle-mounted display system further includes a light sensing module electrically connected to the control module, for sensing the interaction actions of the user and sending a first interaction signal to the control module.

8. The in-vehicle display system according to claim 6, wherein The vehicle-mounted display system further includes a sound sensing module electrically connected to the control module, for receiving sound signals and for sending a second interaction signal to the control module.

9. A vehicle, characterized in that, Comprising: A center console; And The vehicle-mounted display system according to any one of claims 1 - 8, the vehicle-mounted display system being partially embedded in the center console.

10. The vehicle according to claim 9, characterized in that, It 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.

Images