Display device and vehicle

Abstract

The invention provides a display device comprising a display assembly used for displaying a floating image; the voice recognition component is used for recognizing a voice instruction; the control assembly is electrically connected with the display assembly and the voice recognition assembly and used for confirming a target display orientation according to the voice instruction, and the control assembly is further used for generating a driving instruction according to the target display orientation; and the driving assembly is electrically connected with the control assembly and is used for driving the display assembly to move according to the driving instruction so as to switch the floating image to the target display orientation. The invention further provides a vehicle.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display device and a vehicle including the display device. Background Art

[0002] Cars usually include a human-computer interaction module to realize various multimedia functions, such as image display, music playback, driving navigation, etc. However, currently, the human-computer interaction module usually serves the user in the driver's seat and is difficult to meet the needs of other users in the car. Summary of the invention

[0003] A first aspect of the present application provides a display device, comprising:

[0004] Display component, used to display floating images;

[0005] A speech recognition component for recognizing voice commands;

[0006] a control component, electrically connected to the display component and the voice recognition component, respectively, for confirming a target display position according to the voice command, and for generating a driving command according to the target display position; and

[0007] The driving component is electrically connected to the control component and is used to drive the display component to move according to the driving instruction so as to switch the floating image to the target display orientation.

[0008] A second aspect of the present application provides a vehicle, including a vehicle body and a display device located in the vehicle body; the display device includes:

[0009] Display component, used to display floating images;

[0010] A speech recognition component for recognizing voice commands;

[0011] a control component, electrically connected to the display component and the voice recognition component, respectively, for confirming a target display position according to the voice command, and for generating a driving command according to the target display position; and

[0012] The driving component is electrically connected to the control component and is used to drive the display component to move according to the driving instruction so as to switch the floating image to the target display orientation.

[0013] In the above display device, the voice recognition component can recognize the user's voice command, and the control component can locate the position of the user who issued the voice command according to the voice command, thereby accurately controlling the floating image projected by the display component to switch to the target display position, so as to facilitate the user who issued the voice command to view the content of the floating image. When the display device is used in a vehicle, it can serve other users except the user in the main driver's seat. Each user can control the position of the projected floating image by issuing the voice command, which is conducive to the application of the display device in various application scenarios and meets more diverse usage needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a partial three-dimensional structural schematic diagram of a vehicle according to an embodiment of the present application.

[0015] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the display device.

[0016] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the display device along line III-III.

[0017] Main component symbols

[0018] Vehicle 100

[0019] Vehicle Body 101

[0020] Seats 102, 102a, 102b, 102c

[0021] Center console 103

[0022] Handrail 104

[0023] Display device 10

[0024] Display component 11

[0025] Housing 111

[0026] Cover 112

[0027] Display 113

[0028] Flat lens 114

[0029] Sensor 115

[0030] Privacy film 116

[0031] Hollow Space

[0032] Speech recognition component 12

[0033] Microphone 121

[0034] Voice data acquisition card 122

[0035] Drive assembly 13

[0036] Support member 131

[0037] Drive motor 132

[0038] Rotating unit 133

[0039] Upper counterweight 134

[0040] Lower counterweight 135

[0041] Ball 136

[0042] Control components 14

[0043] Display control panel 141

[0044] Rotating control panel 142

[0045] Motherboard 143

[0046] Frame structure 15

[0047] Floating Image 20

[0048] User 30

[0049] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0050] See also Figure 1 The vehicle 100 of one embodiment of the present application includes a vehicle body 101 and a plurality of seats 102 located in the vehicle body 101. In this embodiment, there are four seats 102 in the vehicle body 101, namely a driver's seat 102a, a passenger seat 102b and two rear seats 102c. The vehicle 100 also includes a center console 103 located in front of the driver's seat 102a and the passenger seat 102b, and an armrest 104 located between the driver's seat 102a and the passenger seat 102b. In this embodiment, the armrest 104 is reserved with an installation space, and the vehicle 100 also includes a display device 10 accommodated in the installation space.

[0051] The center console 103 of the vehicle 100 may include multimedia, speakers, function buttons and other structures to assist driving of the vehicle 100 or enrich the entertainment functions in the vehicle 100. The display device 10 is used to project a floating image 20 into the air, and users 30 located in the main driver's seat 102a, the passenger seat 102b and the rear seat 102c can view the floating image 20. The floating image 20 is a real image.

[0052] The positions of the seats 102 are different, so the viewing angles of the users 30 on the seats 102 for viewing the floating image 20 are different. For each user 30, the viewing effect is best when the user's 30 sight line is directly facing the floating image 20 (the sight line is perpendicular to the floating image 20); if the user's 30 sight line is at a large angle to the floating image 20, the floating image 20 viewed may be distorted, and even the content presented by the floating image 20 cannot be recognized.

[0053] The display device 10 of this embodiment can switch the display orientation of the projected floating image 20 in order to adapt to the viewing angle of users on different seats 102. And in this embodiment, the display device 10 is used to switch the display orientation of the projected floating image 20 according to voice commands. For example, at a certain moment, the user 30 located on the main driver's seat 102a needs to view the floating image 20, and the user 30 can say a wake-up word. The display device 10 can recognize the wake-up word as a voice command to locate the position of the user 30 who said the wake-up word, and project the floating image 20 to a target display orientation according to the voice command. The target display orientation is facing the user 30 on the main driver's seat 102a, so that the user can better observe the floating image 20.

[0054] See also Figure 2 The display device 10 of this embodiment includes a display component 11, a voice recognition component 12, a driving component 13 and a control component 14. The control component 14 is electrically connected to the display component 11, the voice recognition component 12 and the driving component 13 respectively.

[0055] In this embodiment, the display device 10 is used to display a floating image 20. The voice recognition component 12 is used to recognize voice commands, and generate an electrical signal according to the voice command and transmit it to the control component 14. The control component 14 is used to determine the position of the user 30 according to the electrical signal, so as to determine the target display position of the floating image 20, and generate a driving instruction according to the target display position. The driving component 13 is controlled by the control component 14, and is used to drive the display device 10 to move according to the driving instruction so that the projected floating image 20 is switched to the target display position. In this embodiment, the driving component 13 specifically switches the target display position of the floating image 20 by driving the display component 11 to rotate.

[0056] Please also read Figure 2 and Figure 3The display assembly 11 includes a shell 111. The shell 111 has an opening, and the display assembly 11 also includes a cover plate 112, which closes the opening so that a hollow space S is formed in the shell 111. The cover plate 112 is used to transmit light and protect the optical elements in the hollow space S. In this embodiment, the cover plate 112 is a transparent glass cover plate. The display assembly 11 also includes a display screen 113, a flat lens 114 and a sensor 115. The display screen 113 and the flat lens 114 are located in the hollow space S. The shell 111 is also formed with a card slot to fix the sensor 115. In this embodiment, the display screen 113 and the flat lens 114 are flat structures, the display screen 113 and the flat lens 114 are at an angle of 45°, and the flat lens 114 is parallel to the cover plate 112. The display screen 113 is used to emit image light, and the flat lens 114 is used to re-converge the image light and guide the image light to the cover plate 112 . The cover plate 112 projects the image light into the air to form a floating image 20 .

[0057] As shown in the structure of the display assembly 11, the entire imaging optical path is completed inside the housing 111. The housing 111 is sprayed with black matte paint or covered with black light-absorbing cloth inside and outside to prevent strong light from interfering with the optical path. The surface of the display screen 113 that emits image light is covered with a privacy film 116 to reduce the divergence of the display light source and ensure a clear image in the air. Since a high-brightness display screen is used, the heat generated by the screen backlight is very large. In some embodiments, a heat sink can be installed to cool it down.

[0058] The imaging modes of the display screen 113 may include RGB (red, green, blue) light emitting diodes (LED), LCD (Liquid Crystal Display), LCOS (Liquid Crystal on Silicon) devices, OLED (Organic Light-Emitting Diode) arrays, projections, lasers, laser diodes or any other suitable displays or stereoscopic displays, without limitation.

[0059] The flat lens 114 is an equivalent negative refractive index optical element, which is used to use the principle of light field reconstruction to re-converge the divergent image light emitted by the display screen 113 in the air, thereby forming a floating image 20 that does not require any medium to carry. In this embodiment, the flat lens 114 includes a first optical waveguide array and a second optical waveguide array. The first optical waveguide array and the second optical waveguide array are closely attached to each other in the same plane. The first optical waveguide array and the second optical waveguide array are composed of a plurality of reflective units with rectangular cross sections. The extension directions (optical waveguide array directions) of the reflective units in the first optical waveguide array and the second optical waveguide array are perpendicular to each other, that is, from the thickness direction of the waveguide array, the first optical waveguide array and the second optical waveguide array are orthogonally arranged, so that the two light beams (image light) in the orthogonal direction converge at one point, generating an equivalent negative refraction phenomenon, and realizing the formation of a floating image 20 in the air. The floating image 20 and the display screen 113 are respectively located on both sides of the flat lens 114, and the floating image 20 and the display screen 113 are symmetrically distributed relative to the flat lens 114.

[0060] The sensor 115 is a rectangular flat plate structure. The sensor 115 and the floating image 20 are located on the same plane. When the user operates (e.g., touches or slides) on the floating image 20, the sensor 115 can sense the existence of the operation and generate sensing information. After the sensing information is transmitted back to the control component 14, the control component 14 can obtain the position of the user's operation according to a preset calculation process, thereby controlling the display component 11 to display the corresponding image.

[0061] The sensor 115 may be a far infrared sensor, an ultrasonic sensor, a laser interferometer, a grating sensor, an encoder, an optical fiber sensor, or a CCD sensor. That is, the sensing form of the sensor 115 includes but is not limited to far infrared, ultrasonic, laser interferometer, grating, encoder, optical fiber, or CCD (charge coupled device), etc.

[0062] The voice recognition component 12 includes a microphone 121 and a voice data acquisition card 122. The voice data acquisition card 122 is electrically connected to the microphone 121 and the control component 14 respectively. The microphone 121 is located on a side close to the cover plate 112 to facilitate the collection of sounds inside the vehicle 100. The microphone 121 is used to convert the collected sound signal into an electrical signal. The electrical signal can be amplified to the input voltage range of the voice data acquisition card 122 by a preamplifier (not shown). The voice data acquisition card 122 is used to perform analog conversion on the received electrical signal and output it to the control component 14. After the control component 14 performs preprocessing such as denoising and enhancement on the converted signal, it calculates the arrival time difference or sound pressure amplitude ratio of the voice signal, and finally obtains the position of the user who issued the voice command.

[0063] The driving assembly 13 includes a support member 131, a driving motor 132 and a rotating part 133. The supporting member 131 is used to support the display assembly 11. In this embodiment, the supporting member 131 is fixed to the housing 111 of the display assembly 11. The driving motor 132 and the rotating part 133 are located on the side of the supporting member 131 away from the display assembly 11. The rotating part 133 includes an annular upper counterweight 134, an annular lower counterweight 135, and a plurality of mutually spaced and equal-sized balls 136 located between the upper counterweight 134 and the lower counterweight 135, and the two sides of the balls 136 are in direct contact with the upper counterweight 134 and the lower counterweight 135 respectively. The driving motor 132 is located in the center of the ring between the upper counterweight 134 and the lower counterweight 135.

[0064] The support member 131 is also fixed to the drive motor 132 by screws. After the support member 131 and the drive motor 132 are fixed and locked, the support member 131 and the upper counterweight 134 are tightly matched. When the drive motor 132 rotates, the support member 131 and the upper counterweight 134 can be driven to rotate synchronously through the ball 136, thereby driving the display assembly 11 to rotate. In this way, it is beneficial to make the display assembly 11 rotate smoothly without jamming, and it is beneficial to ensure the stable imaging quality of the floating image 20. In this embodiment, the cover plate 112 is a flat plate structure, and the display assembly 11 rotates on the plane where the cover plate 112 is located.

[0065] The control assembly 14 includes a display control panel 141, a rotation control panel 142 and a main board 143, and the main board 143 is electrically connected to the display control panel 141 and the rotation control panel 142 respectively. The display control panel 141 is electrically connected to the display screen 113, and is used to control the display screen 113 to display an image. The rotation control panel 142 is electrically connected to the drive motor 132, and is used to control the rotation of the drive motor 132. The main board 143 is electrically connected to the voice data acquisition card 122, and calculates the position of the user who issues the voice command, that is, it is used to determine the target display position of the floating image 20. The main board 143 can output a control signal to the rotation control panel 142 according to the target display position, so that the rotation control panel 142 controls the drive motor 132 to rotate a corresponding angle, so that the floating image finally projected by the display assembly 11 is in the target display position, and the user who wants to issue a voice command can display the image.

[0066] In this embodiment, a memory (not shown) is integrated in the mainboard 143, and a plurality of preset wake-up words are stored in the memory. When the voice command issued by the user 30 matches any wake-up word, the position of the user issuing the voice command is calculated. By pre-storing the wake-up word, it is helpful to avoid erroneously triggering the rotation of the display component 11.

[0067] For example, when the user 30 on the driver's seat 102a wants to view the floating image 20, the user 30 can control the display component 11 to rotate by speaking a voice command matching the pre-stored wake-up word, so that the floating image 20 switches to a position facing the user's 30 line of sight, that is, the aforementioned target display position. When other users 30 want to view the floating image 20, the control method is as described above.

[0068] In this embodiment, the display device 10 further includes a frame structure 15, and the display component 11, the voice recognition component 12, the drive component 13 and the control component 14 are respectively fixed on the frame structure 15. The frame structure 15 is used to maintain the positional relationship and connection relationship between the display component 11, the voice recognition component 12, the drive component 13 and the control component 14, and makes the entire display device 10 compact.

[0069] In a modified embodiment, the control component 14 can be integrated into the center console 103, and electrically connected to the display component 11, the voice recognition component 12 and the drive component 13 by wired or wireless means. In this embodiment, the control component 14 is fixed to the frame structure 15, independent of the center console 103, which is conducive to making the overall structure of the display device 10 compact, and the display device 10 can be removed from the armrest 104 as a whole, which is conducive to after-sales repair and maintenance.

[0070] In the above display device 10, the voice recognition component 12 can recognize the user's voice command, and the control component 14 can locate the position of the user who issued the voice command according to the voice command, thereby accurately controlling the floating image 20 projected by the display component 11 to switch to the target display position, so as to facilitate the user 30 who issued the voice command to view the content of the floating image 20. When the display device 10 is applied to the vehicle 100, it can serve other users except the user on the main driving seat 102a. Each user can control the position of the projected floating image 20 by issuing the voice command, which is conducive to the application of the display device 10 in various application scenarios and meets more diverse usage needs.

[0071] In other embodiments, the display device 10 of this embodiment can be applied to other scenarios besides the vehicle 100. For example, the display device 10 can be applied to ships, airplanes, smart home appliances, gaming devices, etc. The display device 10 can be applied to the above-mentioned various scenarios to achieve the above-mentioned beneficial effects.

[0072] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present application and are not intended to be limiting of the present application. As long as they are within the spirit and scope 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 display device, characterized in that: include: Display component, used to display floating images; A speech recognition component for recognizing voice commands; A control component, electrically connected to the display component and the voice recognition component, respectively, for confirming a target display orientation according to the voice command, and the control component is further used to generate a driving instruction according to the target display orientation; as well as The driving component is electrically connected to the control component and is used to drive the display component to move according to the driving instruction so as to switch the floating image to the target display orientation.

2. The display device according to claim 1, wherein: The driving component is used to drive the display component to rotate so as to switch the floating image to the target display orientation.

3. The display device according to claim 2, wherein: The drive assembly comprises: A support member, fixed to the display assembly; a rotating portion, located at a side of the support member away from the display assembly; and The motor is fixed to the support member and is used to cooperate with the rotating part to drive the support member to rotate, thereby driving the display assembly to rotate synchronously.

4. The display device according to claim 3, characterized in that The rotating part includes an upper counterweight, a lower counterweight, and a plurality of balls located between the upper counterweight and the lower counterweight, and the plurality of balls are closely attached to the upper counterweight and the lower counterweight; The upper counterweight and the lower counterweight are in a ring shape, and the motor is located in the middle of the ring. When the motor drives the support to rotate, the upper counterweight rotates relative to the lower counterweight via the plurality of balls.

5. The display device according to any one of claims 1 to 4, characterized in that: The speech recognition component includes: a microphone for receiving voice commands and converting the voice commands into electrical signals; and A voice data acquisition card, electrically connected to the microphone, for performing analog conversion on the electrical signal output by the microphone; The control component is electrically connected to the voice data acquisition card, and is used to calculate the target display orientation according to the electrical signal output by the data acquisition card, and to generate the driving instruction according to the target display orientation, so as to control the driving component to drive the display component to move according to the driving instruction.

6. The display device according to claim 5, characterized in that The control component stores a plurality of preset wake-up words, and when the voice instruction matches any one of the plurality of wake-up words, the control component calculates the target display orientation according to the voice instruction.

7. The display device according to claim 1, wherein: The display assembly comprises: A display screen for emitting image light; a flat lens, located on the optical path of the image light, for re-converging the image light and projecting the floating image in the air, wherein the floating image and the display screen are symmetrically distributed on both sides of the flat lens; and A sensor, the sensor and the floating image are located on the same plane, and is used to sense an operation instruction on the floating image to generate a sensing signal; The control component is electrically connected to the sensor and is used to control the display device in response to the operation instruction.

8. A vehicle, characterized in that: The vehicle comprises a vehicle body and a display device located in the vehicle body; the display device comprises: Display component, used to display floating images; A speech recognition component for recognizing voice commands; a control component, electrically connected to the display component and the voice recognition component, respectively, for confirming a target display position according to the voice command, and for generating a driving command according to the target display position; and The driving component is electrically connected to the control component and is used to drive the display component to move according to the driving instruction so as to switch the floating image to the target display orientation.

9. The vehicle according to claim 8, characterized in that It also includes a driver's seat, a passenger seat and an armrest between the driver's seat and the passenger seat, and the display device is located at the armrest.

10. The vehicle according to claim 9, characterized in that It also includes a center console located in the vehicle body, and the control component is integrated in the center console.

Images