CN105759426B - Intelligent automobile head-up display device - Google Patents
Intelligent automobile head-up display device Download PDFInfo
- Publication number
- CN105759426B CN105759426B CN201610315020.7A CN201610315020A CN105759426B CN 105759426 B CN105759426 B CN 105759426B CN 201610315020 A CN201610315020 A CN 201610315020A CN 105759426 B CN105759426 B CN 105759426B
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- Prior art keywords
- host
- display device
- intelligent automobile
- bluetooth
- driver
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Classifications
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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
- G02B27/0101—Head-up displays characterised by optical features
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0229—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes
-
- 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
-
- 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
- G02B27/0149—Head-up displays characterised by mechanical features
-
- 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
- G02B27/0179—Display position adjusting means not related to the information to be displayed
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/20—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of display used
- B60R2300/207—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of display used using multi-purpose displays, e.g. camera image and navigation or video on same display
-
- 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
- G02B27/0179—Display position adjusting means not related to the information to be displayed
- G02B2027/0183—Adaptation to parameters characterising the motion of the vehicle
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thermal Sciences (AREA)
- Multimedia (AREA)
- Instrument Panels (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention discloses a kind of intelligent automobile head-up display device, which includes host, power supply base and Bluetooth key plate.Host is fixed on by power supply base above Auto Instrument desk, and driver can reliably and easily be operated using the Bluetooth key plate being fixed in vehicle steering wheel；Host carries phonetic function, and driver can be waken up and operated using voice；Host carries WIFI and bluetooth, can be interconnected with smart mobile phone, and driver can also use the APP of smart mobile phone to be interacted with host.Use the intelligent automobile head-up display device, one virtual screen of aerial generation that can be between 1.6 to 3 meters of driver, for showing the contents such as navigation, phone, message, radio station, reduce the blind risk driven of bowing when driving, ensure safety driving while, greatly improved drive comfort.
Description
Technical field
The present invention relates to a kind of intelligent automobile head-up display device, specifically a kind of vehicle mounted guidance, phone, message, radio station
Etc. information intelligent display device.
Background technology
HUD（Head up Display）, i.e. head up display, also known as head-up display, it is common to use and in aviation field,
The head up display of Helmet Mounted Display and flight deck originating from pilot.Pilot need not bow just it can be seen that he needs
The important information wanted keeps sight to look squarely always, and solving pilot needs to bow to check the puzzlement of information and eyes focal length
The sense of discomfort constantly adjusted.Be increasingly entering automotive field now, for show speed, navigation turn to, oil consumption and other
Simple information can make driver be absorbed in driving and not have to the disk that watches the instruments of bowing, ensure safe driving very well, improved
Driving experience.
The vehicle-mounted HUD of tradition is based on TFT or VFD, will drive relevant information and be shown on TFT or VFD, and pass through
Concave mirror amplification forms a virtual image in front of the driver and shows on certain distance.The picture usually shown is smaller（5 degree of field angle
Less than × 3 degree）, resolution ratio low (less than 480 × 240), brightness it is low（10000 cd/m2Below）, it is only capable of displaying display speed, leads
Boat steering, oil consumption and other simple informations.In today of car networking rapid development, traditional HUD cannot gradually meet letter
Cease the demand of display.
Intelligent automobile universal at present, which comes back, shows equipment（Temperature control）The main mode for employing the vertical outlet air of fan, i.e., from
The exhausting lower part air draft of host top.And intelligent automobile comes back the temperature control mode for showing equipment due to the vertical outlet air of fan, increases
Requirement to host lower part outlet air space.Especially for certain outlet air wind-force is reached, fan also tends to the bigger done, waste
More spaces.Meanwhile fan can only carry out single heat dissipation, it is impossible to heat, so that HUD is in extreme severe cold and heat item
The problem of certain is caused when being used under part.The key controlled mode of vehicle-mounted HUD universal at present, mainly employs fuselage button
Mode, can to intelligent automobile come back show equipment build-in function, such as：The realizations control such as navigation, playback of songs, volume adjustment
System.Such key controlled mode is excessively single, and button and driver are also distant, and driving experience is made to have a greatly reduced quality.
Invention content
In order to adapt to the car networking epoch, convenient for car steering presentation of information, the present invention is provides a kind of intelligent automobile lift
Head shows equipment, is displayed for the contents such as navigation, phone, message, radio station, reduces the blind risk driven of bowing when driving, and protects
While hindering safe driving, the comfort driven has been greatly improved.
The present invention is achieved by the following technical solutions：
A kind of intelligent automobile head-up display device passes through the bottom that powers including host, power supply base and Bluetooth key plate, host
Seat is powered and is fixed on above Auto Instrument desk, and Bluetooth key plate is fixed in vehicle steering wheel, passes through bluetooth between host
Connection；The host includes micro projection light engine, radiation shield, concave mirror, control circuit, motor；The control circuit is led to
The angle of motor control speculum and concave mirror is crossed, by controlling micro projection light engine by information Projection Display on radiation shield
Form intermediary image, then via concave mirror amplification presentation of information in the virtual screen between 1.6 to 3 meters of driver's seat.
The control circuit carries WIFI, bluetooth and 3G module, is connect with mobile terminal, carries out data transmission and control
Cloud platform communication is realized in interaction.
The control circuit is equipped with sound identification module and diamylose denoising device.
The host further comprises loudspeaker and FM emitters, is controlled respectively by control circuit.
The host further comprises temperature control equipment.
Compared with prior art, usefulness of the present invention with：Micro projection light engine is employed, is provided more preferably
Display resolution, brightness, field angle are very suitable for the presentation of information under the car networking epoch：Navigation, radio station, phone, message
Deng；Employ the design of host and pedestal separate mode, host external form is more aesthetically pleasing, while be also more convenient the dismounting of host with
It safeguards；Employing bi-motor pattern can be such that image height is adjusted according to the height and visual custom of motor vehicle operators；Into one
Step is well ensured the intelligent automobile and is come back display equipment in more wide environmental temperature using wind turbine and other temperature control equipments
Under work；Bluetooth key plate, voice and smart mobile phone, the interaction for making intelligence new line display is greatly simplified, and still reliable.
The intelligent automobile come back show equipment, can ensure safety drive while, greatly improved driven under car networking relax
Adaptive.
Description of the drawings
Fig. 1 is the composition component schematic diagram of embodiment of the present invention（Wherein Bluetooth key plate is fixed on steering wheel, but square
To disk and the component part of non-present invention）；
Fig. 2 is the host display system optical principle schematic diagram of embodiment of the present invention；
Fig. 3 is the host internal structure schematic diagram of embodiment of the present invention；
Wherein, 1, host；2nd, power supply base；3rd, Bluetooth key plate；4th, micro projection light engine；5th, radiation shield；6th, concave surface
Mirror 7, control circuit 8, motor 9, loudspeaker 10, FM emitters 11, wind turbine；12nd, other temperature control equipments；13rd, virtual screen.
Specific embodiment
The intelligent automobile, which comes back, shows that equipment includes three big component of host, power supply base and Bluetooth key plate, and host leads to
It crosses above power supply base power supply and fixed car instrument desk, Bluetooth key plate is fixed in vehicle steering wheel, is led between host
Cross bluetooth connection.
The host can include micro projection light engine, radiation shield, concave mirror, control circuit, motor, loudspeaker, FM
Emitter, wind turbine and temperature control equipment etc..The basic function of the host is, by information Projection Display on radiation shield
Form the intermediary image of high brightness, then via concave mirror amplification presentation of information in the virtual picture between 1.6 to 3 meters of driver
Face.Control circuit inside the host can carry high performance CPU, memory, WIFI and bluetooth etc., can run operation
System realizes that the drivers such as navigation, internet stations, telephone receiving/dial often need function, can also be with Bluetooth key plate, intelligence
Other mobile units connections such as energy mobile phone, tire gauge, OBD bluetooth equipments, CAN bluetooth equipments, carry out data transmission and control friendship
Mutually.
For control circuit inside the host with sound identification module, driver can wake up the intelligence by voice
Energy automobile head-up display device simultaneously carries out control interaction with voice command.
Control circuit inside the host according to different driver's height and can be regarded with motor control function
Custom is felt, by the way that the motor inside host is controlled to rotate the angle to adjust speculum and concave mirror, to obtain optimum experience.
Control circuit inside the host can be controlled carries out audio output, but be limited to intelligent automobile using loudspeaker
It comes back and shows the volumetric spaces of equipment, perhaps the loudspeaker that host carries can not give the preferable voice response of driver；So can be with
Increase FM emitters inside host, it, can by the way that FM emitters is controlled to form small-scale FM electric waves in car steering storehouse
To be received with automotive radio and carry out audio output by automobile audio, the effect of automobile audio is generally much better than compact horn.It is micro-
Display chip in type projection light engines if DMD, MEMS and LCOS have strict requirements for ambient operating temperature, generally will
It asks and is operated in 0oC~+70oIn C, and the working temperature typical of automobile inner electronic equipment is -40oC~+85oC, for micro projection
Light engine can work the environment temperature of this wide scope, can increase wind turbine and the control of other temperature inside the host
Device, the control circuit inside host can control wind turbine and other temperature control equipments to realize the system at a temperature of varying environment
Cold or heating needs, so as to preferably ensure the working life of the intelligent automobile head-up display device.
Preferably, the host is installed by power supply base above fixed car instrument desk, and supplied by power supply base
Electricity.
Preferably, the micro projection based on DLP technologies, cooperation reflection may be used in the micro projection in the host
Screen and concave mirror can be such that the virtual image is shown between 1.6 to 3 meters of driver, and field angle is schemed generally at 8 degree × 6 degree or more
Image contrast>800:1 contrast, for high resolution in 640 × 480, maximum brightness is higher than 15000 cd/m2。
Preferably, the Bluetooth key plate is mounted in vehicle steering wheel, by bluetooth connection host, and button is used
Control operation host, facilitates driver to manipulate the host, this is a kind of very reliable and convenient mode of operation.
Preferably, driver can control host by voice wake-up master, and with voice command, this be it is a kind of very
Easily mode of operation, but there is also certain misuse rates.
Preferably, driver can connect host by smart mobile phone by bluetooth, WIFI and 3G, and with intelligent hand
Special APP control hosts on machine, this is a kind of very easily mode of operation, but is also only limitted under the non-travel condition of car
It uses.
Preferably, the control circuit inside host can control motor inside host to rotate to adjust speculum and recessed
The angle of face mirror, to adapt to the height of different drivers and visual custom demand.
Preferably, driver can select to use the loudspeaker progress audio of the intelligent new line display device defeated
Go out or use FM emitters, received with automotive radio and played with automobile audio.
Preferably, using side blown type wind turbine, semiconductor refrigerating and other temperature control equipments inside host, it can be described
Realization intelligently lift shows that equipment is worked normally in -40oC ~+85o.
It fills with preferably, charging base may be connected to vehicle, is charged by the USB interface that vehicle fills.
Below in conjunction with attached drawing, the technical solution in the embodiment of the present invention is described, it is clear that described embodiment
The only embodiment of a part of embodiment of the invention rather than whole.
Embodiment
As shown in Figure 1, the intelligence, which comes back, shows that equipment includes host 1, power supply base 2, Bluetooth key plate 3；The confession
The attached glue in electric 2 back side of pedestal, material is silica gel, can guarantee that entire pedestal consolidates and is fitted on console, in the power supply base 2
Portion carries supply line, can power to host 1；The power supply base carries multiple spacing bayonets and 1 thimble position-limit mechanism, protects
It demonstrate,proves host 1 and power supply base 2 securely connects.
As shown in Fig. 2, the host 1 includes micro projection light engine 4, radiation shield 5, concave mirror 6, control circuit 7, motor
8th, loudspeaker 9, FM emitters 10, wind turbine 11, temperature control equipment 12.
As shown in figure 3, image information is incident upon on radiation shield 5 by the projection light engines 4, concave mirror 6 can amplify reflection
The intermediary image of high brightness on screen 5, driver can see the virtual screen between 1.6 to 3 meters of human eye through concave mirror 6
13.The radiation shield 5 and concave mirror 6 are driven by motor 8, and the motor 8 connects angular transducer, make concave mirror 60 ~
It is freely adjusted in angular range between 120 °, to meet driver's height and visual custom.
The control circuit 7 with sound identification module, FM emitters 10, microphone, WIFI module, bluetooth module,
3G module.The sound identification module can be converted to various operational orders by master chip by audio is received；The FM transmittings dress
It puts 10 to launch audio signal, after automobile FM equipment receives signal, vehicle audio plays audio；The microphone carries
Decrease of noise functions receives audio more accurate；The WIFI module and bluetooth module are for the data interaction between equipment and host；
The 3G module provides data traffic for the navigation in the intelligence new line display equipment and network radio station.Mobile phone sim cards can quilt
It is inserted into so as to connect internet, can be used for navigation and internet stations online.
The wind turbine 11 and micro projection light engine built-in temperature control device 12 effectively reduce by the 1 inside temperature of host
Degree, the built-in temperature control device 12 can adjust the operating temperature of light engine, at -40 DEG C ~+85 DEG C of environment temperature, protect
Display chip operating temperature is demonstrate,proved in 0 DEG C ~ 70 DEG C most suitable ranges, the intelligence is extended and comes back and show the working life of equipment；Institute
It tells that wind turbine 11 introduces air above host, discharges hot wind from host side air outlet, the host 1 is helped to radiate.
Preferably, the host 1 can be interconnected by bluetooth BLE agreements Bluetooth key plate 3, smart mobile phone, tire gauge,
Other mobile units such as OBD bluetooth equipments, CAN bluetooth equipments carry out data transmission and control interaction.
The above is only the better embodiment of the present invention, therefore all constructions according to described in present patent application range,
The equivalent change or modification that feature and principle are done is included in present patent application protection domain.
Claims (4)
1. a kind of intelligent automobile head-up display device, it is characterised in that：Including host, power supply base and Bluetooth key plate, host
Powered and be fixed on above Auto Instrument desk by power supply base, Bluetooth key plate is fixed in vehicle steering wheel, with host it
Between pass through bluetooth connection；The host includes micro projection light engine, radiation shield, concave mirror, control circuit, motor；It is described
Control circuit controls the angle of speculum and concave mirror by motor, by controlling micro projection light engine by information Projection Display
Form intermediary image on radiation shield, then via concave mirror amplification presentation of information virtual between 1.6 to 3 meters of driver's seat
Picture；The host further comprises temperature control equipment, and the temperature control equipment includes wind turbine and micro projection light
Engine built-in temperature control device, the built-in temperature control device adjusts the operating temperature of micro projection light engine, in environment
At -40 DEG C ~+85 DEG C of temperature, ensure operating temperature in 0 DEG C ~ 70 DEG C most suitable ranges, the wind turbine-introduced from host above sky
Gas discharges hot wind from host side air outlet, the host is helped to radiate.
2. a kind of intelligent automobile head-up display device according to claim 1, it is characterised in that：The control circuit band
There are WIFI, bluetooth and 3G module, connect with mobile terminal, carried out data transmission and control interaction, realize cloud platform communication.
3. a kind of intelligent automobile head-up display device according to claim 1, it is characterised in that：The control circuit is set
There are sound identification module and diamylose denoising device.
4. a kind of intelligent automobile head-up display device according to claim 1, it is characterised in that：The host is further
Including loudspeaker and FM emitters, controlled respectively by control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315020.7A CN105759426B (en) | 2016-05-13 | 2016-05-13 | Intelligent automobile head-up display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315020.7A CN105759426B (en) | 2016-05-13 | 2016-05-13 | Intelligent automobile head-up display device |
Publications (2)
| Publication Number | Publication Date |
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| CN105759426A CN105759426A (en) | 2016-07-13 |
| CN105759426B true CN105759426B (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610315020.7A Active CN105759426B (en) | 2016-05-13 | 2016-05-13 | Intelligent automobile head-up display device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108146345B (en) * | 2016-12-06 | 2021-03-30 | Lg电子株式会社 | Vehicle control device and vehicle including the same |
| US10268907B2 (en) * | 2017-01-11 | 2019-04-23 | GM Global Technology Operations LLC | Methods and systems for providing notifications on camera displays for vehicles |
| CN107367840B (en) * | 2017-06-30 | 2020-06-23 | Oppo广东移动通信有限公司 | Information display method, information display device, storage medium and electronic equipment |
| WO2019123326A1 (en) | 2017-12-19 | 2019-06-27 | Pontificia Universidad Javeriana | System and method for interacting with a mobile device using a head-up display |
| CN111055769A (en) * | 2019-12-31 | 2020-04-24 | 宝能汽车有限公司 | HUD display system and method for vehicle |
| CN113721366B (en) * | 2021-08-27 | 2023-08-22 | 京东方科技集团股份有限公司 | Vehicle-mounted head-up display |
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| CN203485829U (en) * | 2013-05-23 | 2014-03-19 | 上海埃士工业科技有限公司 | Vehicle head up display |
| CN104085349A (en) * | 2014-07-25 | 2014-10-08 | 大连引航光电信息技术有限公司 | Head-up display device |
| CN104554004A (en) * | 2013-10-23 | 2015-04-29 | 比亚迪股份有限公司 | Digital heads up display system |
| CN105243819A (en) * | 2015-11-04 | 2016-01-13 | 程瀚 | Bluetooth remote controller for control of automobile head-up display system |
| CN205750122U (en) * | 2016-05-13 | 2016-11-30 | 浙江水晶光电科技股份有限公司 | Intelligent automobile head-up display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5650661B2 (en) * | 2009-12-14 | 2015-01-07 | パナソニックＩｐマネジメント株式会社 | Transmission type display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203485829U (en) * | 2013-05-23 | 2014-03-19 | 上海埃士工业科技有限公司 | Vehicle head up display |
| CN104554004A (en) * | 2013-10-23 | 2015-04-29 | 比亚迪股份有限公司 | Digital heads up display system |
| CN104085349A (en) * | 2014-07-25 | 2014-10-08 | 大连引航光电信息技术有限公司 | Head-up display device |
| CN105243819A (en) * | 2015-11-04 | 2016-01-13 | 程瀚 | Bluetooth remote controller for control of automobile head-up display system |
| CN205750122U (en) * | 2016-05-13 | 2016-11-30 | 浙江水晶光电科技股份有限公司 | Intelligent automobile head-up display device |
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| CN105759426A (en) | 2016-07-13 |
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Effective date of registration: 20161124 Address after: Hangzhou City, Zhejiang province 310051 Binjiang District River Street foreshore road 1197 building 6 room 219 Applicant after: Zhejiang Jing Jing Technology Co., Ltd. Address before: Jiaojiang District of Taizhou city in Zhejiang province 318015 Star Electronic Industrial District No. A5 (Hong home gaoqiaocun) Applicant before: Zhejiang Quartz Crystal Optoelectronic Technology Co., Ltd. |
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Effective date of registration: 20211112 Address after: 318000 No. A5, Xingxing electronic industrial zone, Jiaojiang District, Taizhou City, Zhejiang Province (Hongjia hougaoqiao Village) Patentee after: Zhejiang Crystal Photoelectric Technology Co., Ltd Address before: Room 219, building 6, No. 1197, Bin'an Road, Changhe street, Binjiang District Patentee before: Zhejiang Jingtu Technology Co., Ltd |