CN109435849A - A kind of Vehicular head-up display system - Google Patents
A kind of Vehicular head-up display system Download PDFInfo
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- CN109435849A CN109435849A CN201811178058.XA CN201811178058A CN109435849A CN 109435849 A CN109435849 A CN 109435849A CN 201811178058 A CN201811178058 A CN 201811178058A CN 109435849 A CN109435849 A CN 109435849A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Multimedia (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
The present invention relates to a kind of Vehicular head-up display systems, specifically include HUD device, central car controller and sound equipment；The central car controller receives picture or vision signal, converts optical signal and audio signal for the picture received or vision signal, optical signal is projected on windshield glass of automobile through HUD device, and audio signal transmits voice signal by sound equipment.The present invention is using windshield as perspective plane, HUD device can be used as projection device in vehicle stationary and project to image or video on windshield glass, what it is due to HUD device presentation is the virtual image, vision to passenger is the position other than about 7m, when viewing, eyes will not be excessively close and tired because of image, overcomes the problem of windshield is difficult to control as display image distortion, be easy to cause visual fatigue.
Description
Technical field
The present invention relates to a kind of display system, in particular to a kind of Vehicular head-up display system.
Background technique
With the continuous improvement of people's living standards, the demand to configuration of automobiles is also higher and higher, automobile is no longer only made
For a walking-replacing tool, and one of equipment when going out for diverting oneself and entertaining.
On the one hand most of automobile can realize the transmitting of audio by bluetooth or USB connection cell phone apparatus at present.In vehicle
In driving process, passenger can listen the music for wanting to listen, and also provide safety guarantee to receive calls.But pass through USB or indigo plant
Tooth connects automobile middle control, can only play audio, can not accomplish the transmitting of image and video, be unable to satisfy the practical need of consumer
It asks.
On the other hand, the throwing screen technology about mobile phone, plate etc. between personal devices and television display screen or projector
It is highly developed, wifi or connecting line are either used, it is all commonly used.Meanwhile also having using windshield as aobvious
Show the vehicle-mounted movie theatre of device, for windshield glass in driving as transparent glass use, when viewing is switched to display mode, viewer
Viewing enjoyment can also be enjoyed by sitting in the back row.
China Patent Publication No. CN108327652A, publication date on July 27th, 2018, innovation and creation it is entitled it is a kind of with
Minitype vehicle movie theatre of the windshield as display, this application discloses one kind using windshield as display
The Minitype vehicle movie theatre of device, including front windshield and controller containing display screen, controller is mounted on console, further includes
There is stereo system, stereo system is mounted on multiple corners in automobile, and controller is separately connected the display screen on front windshield
And stereo system, display screen are made of photovoltaic display screen, plastic layer, toughened glass layer and transparent photovoltaic power generation film.It is insufficient
Place is using windshield as display, and windshield is irregular free form surface, and as display screen, not only manufacture is difficult
Spend larger, and for different automobile types, pattern distortion is difficult to control；Under normal circumstances, front-seat personnel and windshield distance less than
1m not only influences viewing effect, will also result in visual fatigue.
Summary of the invention
It is an object of the present invention to solve above-mentioned windshield of the existing technology as display image to distort
The problem of being difficult to control, be easy to causeing visual fatigue, provides a kind of Vehicular head-up display system.
The technical solution adopted by the present invention to solve the technical problems is: a kind of Vehicular head-up display system, including HUD dress
Set 1, central car controller 2 and sound equipment 3；The central car controller 2 receives picture or vision signal, by what is received
Picture or vision signal are converted into optical signal and audio signal, and optical signal is projected on windshield glass of automobile 4 through HUD device 1,
Audio signal transmits voice signal by sound equipment 3.
Preferably, the HUD device 1 includes: DLPC mainboard 1-1, PGU unit 1-2, curved surface lens device 1-3, adjusts dress
Set 1-4, dustproof cover 1-5 and shell 1-6；DLPC mainboard 1-1, PGU unit 1-2, curved surface lens device 1-3, regulating device
1-4, dustproof cover 1-5 are arranged inside shell 1-6；Shell 1-6 is equipped with an opening, and dustproof cover 1-5 is mounted on the opening
Place closes shell 1-6；The dustproof cover 1-5 is Transparent Parts；The curved surface lens device 1-3 includes plane mirror 1-3-1, diffusion
Shield 1-3-2, first surface mirror 1-3-4 and the second curved mirror 1-3-3；The plane mirror 1-3-1, diffuser screen 1-3-2, the first song
Face mirror 1-3-4 and the second curved mirror 1-3-3 are successively oppositely arranged, and the optical signal that PGU unit 1-2 is issued sequentially passes through plane mirror
1-3-1, diffuser screen 1-3-2, then pass through dustproof cover 1-5 after first surface mirror 1-3-4 and the second curved mirror 1-3-3 reflection and throw
Shadow is on windshield glass 4.
Preferably, the regulating device 1-4 includes spring 1-4-1 and adjusting motor 1-4-2；The shell 1-6 is inside
A support rod is stretched out, the adjusting motor 1-4-2 is mounted on the lower section of the support rod, the middle part first surface mirror 1-3-4
It is rotatablely connected with the support boom end；Spring 1-4-1 first end is connect with the support rod, spring 1-4-1 second end and the
The connection of one lower end curved mirror 1-3-4 makes the first surface lower end mirror 1-3-4 offset with motor 1-4-2 shaft head is adjusted, and adjusts electricity
Machine 1-4-2 receives motor control signal control shaft head telescopic, and first surface mirror 1-3-4 around support boom end rotation, is adjusted therewith
Save the angle between first surface mirror 1-3-4 and windshield glass 4.
Preferably, the central car controller 2 includes storage unit 2-1, processor 2-2, audio output module 2-
3, external signal transmission module 2-4, the Internet module 2-5, vision signal conversion module 2-6 and motor control module 2-7；
The processor 2-2 is connect with storage unit 2-1, is stored data in storage unit 2-1；The processor 2-2 and audio
Output module 2-3 connection, audio output module 2-3 are connect with sound equipment 3, and the audio signal of extraction is propagated by sound equipment 3；
The processor 2-2 receives exterior artwork or vision signal by external signal transmission module 2-4, the Internet module 2-5；It is described
Processor 2-2 is connect by vision signal conversion module 2-6 with DLPC mainboard 1-1, will be schemed by vision signal conversion module 2-6
Piece or vision signal pass to HUD device 1；The DLPC mainboard 1-1 is connect with PGU unit 1-2, and PGU unit 1-2 passes through optics
Processing, converts optical signal for the picture received or vision signal, projects to windshield glass 4 by curved surface lens device 1-3
On；The processor 2-2 is connect with motor control module 2-8, and output motor controls signal, and controling adjustment device 1-4 adjusts bent
Angle between face regulating device 1-3 and windshield glass 4.
Preferably, audio output module 2-3 and sound equipment 3 pass through bluetooth or wired connection.
Preferably, the DLPC mainboard 1-1 include power module, video input decoder module, DLPC processor module,
LED drive control module and MCU control module；The power module is video input decoder module, DLPC processor module
And LED drive control module power supply；The video input decoder module is connect with DLPC processor module, by received through regarding
Treated that signal is sent to DLPC processor module is handled by frequency signal conversion module 2-6, the output of DLPC processor module
MCU control module described in digital controlled signal and pwm control signal to PGU unit 1-2 controls input power and switching on and shutting down, output
Motor control signal adjusts first surface mirror 1-3-4 angle to motor 1-4-2 is adjusted.
Preferably, the first surface mirror 1-3-4 is concave mirror.
Preferably, the second curved mirror 1-3-3 is convex reflecting mirror.
Substantial effect of the invention: for the present invention using windshield as perspective plane, HUD device can be in vehicle stationary
Image or video are projected on windshield glass as projection device, what it is due to HUD device presentation is the virtual image, to the view of passenger
Feel is the position other than the about 7m, and when viewing, eyes will not be excessively close and tired because of image.
Detailed description of the invention
Fig. 1 is a kind of structural block diagram of the invention.
Fig. 2 is a kind of lightray propagation path schematic diagram of the invention.
Fig. 3 is a kind of signal processing circuit of the invention.
In figure: 1, HUD device, 1-1, DLPC mainboard, 1-2, PGU unit, 1-3, curved surface lens device, 1-3-1, plane mirror,
1-3-2, diffuser screen, 1-3-4, first surface mirror, 1-3-3, the second curved mirror, 1-4, regulating device, 1-4-1, spring, 1-4-2,
Adjust motor, 1-5, dustproof cover, 1-6, shell, 2, central car controller, 2-1, storage unit, 2-2, processor, 2-3, sound
Frequency output module, 2-4, external signal transmission module, 2-5, the Internet module, 2-6, vision signal conversion module, 2-7, motor
Control module, 3, sound equipment, 4, windshield glass, 5, personal device, 6, human eye, 7, light.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, technical scheme of the present invention will be further explained in detail.
A kind of Vehicular head-up display system, as shown in Figure 1, including HUD device 1, central car controller 2 and sound equipment 3.
Central car controller 2 receives picture or vision signal, converts optical signal and audio for the picture received or vision signal
Signal, optical signal are projected on windshield glass of automobile 4 through HUD device 1, and audio signal transmits voice signal by sound equipment 3.Such as
Shown in Fig. 2, HUD device 1 includes: DLPC mainboard 1-1, PGU unit 1-2, curved surface lens device 1-3, regulating device 1-4, dustproof cover
1-5 and shell 1-6；DLPC mainboard 1-1, PGU unit 1-2, curved surface lens device 1-3, regulating device 1-4, dustproof cover 1-5 are all provided with
It sets inside shell 1-6.Shell 1-6 is equipped with an opening, and dustproof cover 1-5 is mounted on opening, closes shell 1-6, dustproof cover
1-5 is Transparent Parts, can reflect away sunray, prevent sunray from entering eyes.Curved surface lens device 1-3 includes plane mirror 1-
3-1, diffuser screen 1-3-2, first surface mirror 1-3-4 and the second curved mirror 1-3-3.Plane mirror 1-3-1, diffuser screen 1-3-2,
One curved mirror 1-3-4 and the second curved mirror 1-3-3 are successively oppositely arranged, first surface mirror 1-3-4 be concave mirror, second
Curved mirror 1-3-3 is convex reflecting mirror.It is beaten on plane mirror 1-3-1 by the optical signal that PGU unit 1-2 is issued, through plane mirror
It passes through diffuser screen 1-3-2 after 1-3-1 reflection to fall on the second curved mirror 1-3-3, by the second curved mirror 1-3-3 and first surface
Optical signal is beaten on windshield glass 4 through dustproof cover 1-5 after two secondary reflection of mirror 1-3-4, and human eye 6 is hoped towards the region of projection
It goes, can see the picture projected by HUD device 1.
Regulating device 1-4 includes spring 1-4-1 and adjusting motor 1-4-2；Shell 1-6 inwardly stretches out a support rod, adjusts
Motor 1-4-2 is mounted on the lower section of support rod, is rotatablely connected in the middle part of first surface mirror 1-3-4 with support boom end；Spring 1-4-1
First end is connect with support rod, and spring 1-4-1 second end is connect with the lower end first surface mirror 1-3-4, makes first surface mirror 1-3-4
Lower end offsets with motor 1-4-2 shaft head is adjusted, and adjusts motor 1-4-2 and receives motor control signal control shaft head telescopic,
First surface mirror 1-3-4 around support boom end rotation, adjusts the angle between first surface mirror 1-3-4 and windshield glass 4 therewith
Degree.
Central car controller 2 includes storage unit 2-1, processor 2-2, audio output module 2-3, external signal transmission
Module 2-4, the Internet module 2-5, vision signal conversion module 2-6 and motor control module 2-7.
Processor 2-2 is connect with storage unit 2-1, is stored data in storage unit 2-1, processor 2-2 and audio
Output module 2-3 connection, audio output module 2-3 and sound equipment 3 pass through bluetooth or wired connection.Processor 2-2 passes through outside
Signal transmission module 2-4, the Internet module 2-5, which receive exterior artwork or vision signal, personal device 5, can pass through the Internet module
2-5, external signal transmission module 2-4 realize with the connection of processor 2-2, by equipment image or video information transmitting everywhere
It manages in device 2-2, wherein the Internet module 2-5 supports Wifi connection, and external signal transmission module 2-4 supports type-c to turn HDMI wire
Turn the connection of HDMI/VGA line etc. with USB.Processor 2-2 is connect by vision signal conversion module 2-6 with DLPC mainboard 1-1,
Picture or vision signal are passed into HUD device 1 by vision signal conversion module 2-6；DLPC mainboard 1-1 and PGU unit 1-2
Connection, PGU unit 1-2 are converted optical signal for the picture received or vision signal, are filled by curved mirror by optical treatment
1-3 is set to project on windshield glass 4.Processor 2-2 is connect with motor control module 2-7, and output motor controls signal, is adjusted
Motor 1-4-2 receives motor control signal and controls motor shaft head telescopic, and first surface mirror 1-3-4 turns around support boom end therewith
It is dynamic, adjust the angle between curved surface regulating device 1-3 and windshield glass 4.
As shown in figure 3, DLPC mainboard 1-1 includes power module, video input decoder module, DLPC processor module, LED
Drive control module and MCU control module.Power module is video input decoder module, DLPC processor module and LED
Drive control module power supply.Including two level power supplies, it is that the second level power supply is defeated that the first level power supply, which includes that a 4 ~ 40V inputs DCDC,
Enter 3.3V, an output 6V, for LDO, the output 5V of photodiode power supply, is driven for the LDO of CAN IC power supply, LED
It is directly powered by 12V, by BUCK circuit drives LED light；Motor driven is also directly powered by 12V.Second level power supply includes 3
DCDC, 4 LDO power for each chip.
Video input decoder module includes 2 kinds of input modes: HSD accesses LVDS differential signal, by SerDes chip solution
Rgb signal out；HMDI input solves rgb signal by HDMI decoding chip, and rgb signal is input to DLPC processor module company
It connects, DLPC processor module includes the DDR2 of DLPC chip, SPI a NorFlash and 1Gbit, and Flash stores DLPC
Startup program, DDR2 is as running memory storing data.DLPC chip receives rgb signal, exports digital controlled signal and PWM
Signal is controlled to PGU unit 1-2.
LED drive control module includes TMS320F28023 digital signal processing chip and LED driving, and LED drives and PGU
Unit 1-2 connection PGU unit includes LED light source.The controller that TMS320F28023 drives as LED, is received by SPI communication
The brightness white balance signal of input controls the brightness of LED light electric current, LED light electric current and brightness and arrives by amplifier feedback
TMS320F28023 carries out PID control.LED lamp drive circuit is inputted by 12V, the BUCK circuit taken by transistor, by
TMS320F28023 controls output voltage values, and the pwm signal driving metal-oxide-semiconductor control LED light of DLPC realizes PWM light modulation, adjusts LED
Electric current is to control brightness.LED current sampling feedback circuit, LED luminance photoelectric tube sampling feedback circuit, input
TMS320F28023 carries out pid algorithm control.
MCU control module includes single-chip microcontroller, CAN, and LIN transceiver and stepper motor drive, and passes through CAN, LIN transceiver
Vision signal conversion module 2-6 establishes connection, receives the signal of the control display brightness of vision signal conversion module 2-6 transmission,
Single-chip microcontroller is sent to TMS320F28023 by SPI for handling CAN, LIN communication, and stepper motor driving adjusts motor 1-4-2
Adjust the angle of first surface mirror 1-3-4.
HUD device 1, which has, to be driven and viewing both of which.When opening driving mode, HUD device can realize driving information
With the projection of road information, convenience is provided for driver；When the car is at rest, viewing mode could be opened, at this point,
HUD device can project to the image and video information passed over by personal device 5 on windshield glass 4.HUD device 1 can
It is mounted on the instrument desk on front side of driver, at this time according to light reflection law, only the passenger on operating seat can
See projected image.What it is due to the presentation of HUD device 1 is the virtual image, and the vision to passenger is the position other than about 7m, therefore,
When viewing, eyes will not be excessively close and tired because of image.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that commodity or system including a series of elements not only include those elements, but also including not arranging clearly
Other element out, or further include for this commodity or the intrinsic element of system.The case where not limiting more
Under, the element that is limited by sentence "including a ...", it is not excluded that also deposited in the commodity or system for including the element
In other identical element.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form.Though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention.It is any to be familiar with those skilled in the art
Member, without departing from the scope of the technical proposal of the invention, all using the methods and technical content of the disclosure above to the present invention
Technical solution makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, it is all without departing from
The content of technical solution of the present invention, according to the technical essence of the invention any simple modification made to the above embodiment, equivalent
Variation and modification, all of which are still within the scope of protection of the technical scheme of the invention.
Claims (8)
1. a kind of Vehicular head-up display system, which is characterized in that including HUD device (1), central car controller (2) and sound
It rings (3)；
The central car controller (2) receives picture or vision signal, converts light for the picture received or vision signal
Signal and audio signal, optical signal are projected on windshield glass of automobile (4) through HUD device (1), and audio signal passes through sound equipment
(3) voice signal is transmitted.
2. a kind of Vehicular head-up display system as described in claim 1, which is characterized in that the HUD device (1) includes: DLPC
Mainboard (1-1), PGU unit (1-2), curved surface lens device (1-3), regulating device (1-4), dustproof cover (1-5) and shell (1-
6)；
The DLPC mainboard (1-1), PGU unit (1-2), curved surface lens device (1-3), regulating device (1-4), dustproof cover (1-5)
It is internal to be arranged at shell (1-6)；Shell (1-6) is equipped with an opening, and dustproof cover (1-5) is mounted on the opening, closes
Shell (1-6)；
The dustproof cover (1-5) is Transparent Parts；
The curved surface lens device (1-3) include plane mirror (1-3-1), diffuser screen (1-3-2), first surface mirror (1-3-4) with
And second curved mirror (1-3-3)；The plane mirror (1-3-1), diffuser screen (1-3-2), first surface mirror (1-3-4) and second
Curved mirror (1-3-3) is successively oppositely arranged, and the optical signal that PGU unit (1-2) issues sequentially passes through plane mirror (1-3-1), diffusion
Shield (1-3-2), then passes through dustproof cover (1-5) after first surface mirror (1-3-4) and the second curved mirror (1-3-3) reflection and project
On windshield glass (4).
3. a kind of Vehicular head-up display system as claimed in claim 2, which is characterized in that the regulating device (1-4) includes bullet
Spring (1-4-1) and adjusting motor (1-4-2)；
The shell (1-6) inwardly stretches out a support rod, and adjusting motor (1-4-2) is mounted on the lower section of the support rod,
It is rotatablely connected in the middle part of the first surface mirror (1-3-4) with the support boom end；
Spring (1-4-1) first end is connect with the support rod, under spring (1-4-1) second end and first surface mirror (1-3-4)
End connection makes the first surface mirror lower end (1-3-4) offset with motor (1-4-2) shaft head is adjusted, and adjusts motor (1-4-2) and connects
Motor control signal control shaft head telescopic is received, around support boom end rotation, it is bent to adjust first therewith for first surface mirror (1-3-4)
Angle between face mirror (1-3-4) and windshield glass (4).
4. a kind of Vehicular head-up display system as described in claims 1 or 2 or 3, which is characterized in that the central car controller
It (2) include storage unit (2-1), processor (2-2), audio output module (2-3), external signal transmission module (2-4), interconnection
Net module (2-5), vision signal conversion module (2-6) and motor control module (2-7)；
The processor (2-2) connect with storage unit (2-1), stores data in storage unit (2-1)；
The processor (2-2) connect with audio output module (2-3), and audio output module (2-3) is connect with sound equipment (3), will
The audio signal of extraction is propagated by sound equipment (3)；
The processor (2-2) receives exterior artwork or view by external signal transmission module (2-4), the Internet module (2-5)
Frequency signal；
The processor (2-2) is connect by vision signal conversion module (2-6) with DLPC mainboard (1-1), and vision signal is passed through
Picture or vision signal are passed to HUD device (1) by conversion module (2-6)；The DLPC mainboard (1-1) and PGU unit (1-2)
Connection, PGU unit (1-2) convert optical signal for the picture received or vision signal, pass through curved mirror by optical treatment
Device (1-3) projects on windshield glass (4)；
The processor (2-2) connect with motor control module (2-7), and output motor controls signal, controling adjustment device (1-4)
Adjust the angle between curved surface regulating device (1-3) and windshield glass (4).
5. a kind of Vehicular head-up display system as claimed in claim 4, which is characterized in that audio output module (2-3) and sound equipment
(3) pass through bluetooth or wired connection.
6. a kind of Vehicular head-up display system as claimed in claim 4, which is characterized in that the DLPC mainboard (1-1) includes electricity
Source module, video input decoder module, DLPC processor module, LED drive control module and MCU control module；The electricity
Source module is video input decoder module, DLPC processor module and the power supply of LED drive control module；The video input solution
Code module is connect with DLPC processor module, and through vision signal conversion module (2-6), treated, and signal is sent to by received
DLPC processor module is handled, and DLPC processor module exports digital controlled signal and pwm control signal to PGU unit
(1-2)；, MCU control module control input power and switching on and shutting down, output motor controls signal to adjusting motor (1-4-2),
Adjust first surface mirror (1-3-4) angle.
7. a kind of Vehicular head-up display system as described in Claims 2 or 3, which is characterized in that the first surface mirror (1-3-4)
For concave mirror.
8. a kind of Vehicular head-up display system as described in Claims 2 or 3, which is characterized in that second curved mirror (1-3-3)
For convex reflecting mirror.
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| CN201811178058.XA CN109435849A (en) | 2018-10-10 | 2018-10-10 | A kind of Vehicular head-up display system |
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| CN201811178058.XA CN109435849A (en) | 2018-10-10 | 2018-10-10 | A kind of Vehicular head-up display system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112995631A (en) * | 2021-03-19 | 2021-06-18 | 恒大新能源汽车投资控股集团有限公司 | Vehicle information processing system and information processing method |
| CN113547989A (en) * | 2020-04-24 | 2021-10-26 | 上海汽车集团股份有限公司 | Automobile and head-up display system thereof |
| CN114415371A (en) * | 2020-10-13 | 2022-04-29 | 华为技术有限公司 | Augmented reality display device |
| WO2023179188A1 (en) * | 2022-03-25 | 2023-09-28 | 华为技术有限公司 | Projection optical machine, display device, and vehicle |
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| CN113547989A (en) * | 2020-04-24 | 2021-10-26 | 上海汽车集团股份有限公司 | Automobile and head-up display system thereof |
| CN113547989B (en) * | 2020-04-24 | 2023-07-21 | 上海汽车集团股份有限公司 | Automobile and head-up display system thereof |
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| CN112995631A (en) * | 2021-03-19 | 2021-06-18 | 恒大新能源汽车投资控股集团有限公司 | Vehicle information processing system and information processing method |
| WO2023179188A1 (en) * | 2022-03-25 | 2023-09-28 | 华为技术有限公司 | Projection optical machine, display device, and vehicle |
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Application publication date: 20190308 |