CN113787963A - Vehicle-mounted virtual imaging system and method and vehicle with same - Google Patents

Vehicle-mounted virtual imaging system and method and vehicle with same Download PDF

Info

Publication number
CN113787963A
CN113787963A CN202111024458.7A CN202111024458A CN113787963A CN 113787963 A CN113787963 A CN 113787963A CN 202111024458 A CN202111024458 A CN 202111024458A CN 113787963 A CN113787963 A CN 113787963A
Authority
CN
China
Prior art keywords
vehicle
speed
light source
imaging system
size
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111024458.7A
Other languages
Chinese (zh)
Inventor
曾庆生
张武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Xianta Intelligent Technology Co Ltd
Original Assignee
Shanghai Xianta Intelligent Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Xianta Intelligent Technology Co Ltd filed Critical Shanghai Xianta Intelligent Technology Co Ltd
Priority to CN202111024458.7A priority Critical patent/CN113787963A/en
Publication of CN113787963A publication Critical patent/CN113787963A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00Optical 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08Interaction between the driver and the control system
    • B60W50/14Means for informing the driver, warning the driver or prompting a driver intervention
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/017Head mounted
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08Interaction between the driver and the control system
    • B60W50/14Means for informing the driver, warning the driver or prompting a driver intervention
    • B60W2050/146Display means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Transportation (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Instrument Panels (AREA)

Abstract

The vehicle-mounted virtual imaging system comprises a speed acquisition unit for acquiring the speed of the vehicle, a control unit and a virtual imaging device for displaying virtual images, wherein the virtual imaging device comprises a display size adjusting device for adjusting the display distance of the virtual images, the speed acquisition unit and the display size adjusting device are electrically connected with the control unit, the speed acquisition unit transmits acquired speed information of the vehicle to the control unit, and the control unit controls the display size adjusting device to adjust the size of the virtual images according to the speed of the vehicle. The vehicle-mounted virtual imaging system can better assist a driver in driving a vehicle.

Description

Vehicle-mounted virtual imaging system and method and vehicle with same
Technical Field
The invention relates to the technical field of vehicle auxiliary driving, in particular to an on-vehicle virtual imaging system and method and a vehicle with the on-vehicle virtual imaging system.
Background
Vehicle-mounted virtual imaging system, like HUD (Head Up Display Head Up Display system) or intelligent Display glasses can directly perceivedly show vehicle information, driving assistance and navigation guidance information on real road surface, promote the interaction between driver and the vehicle to new height, and the user need not to lower the Head and just can look over car relevant information. How to improve the driving assistance performance of the vehicle-mounted virtual imaging system becomes the key point of research in various major automobile factories and laboratories.
Disclosure of Invention
In view of this, the invention provides a vehicle-mounted virtual imaging system, a method and a vehicle with the same, wherein the vehicle-mounted virtual imaging system can better assist a driver in driving the vehicle.
The invention provides a vehicle-mounted virtual imaging system which comprises a speed acquisition unit, a control unit and a virtual imaging device, wherein the speed acquisition unit is used for acquiring the speed of a vehicle, the control unit is used for displaying a virtual image, the virtual imaging device comprises a display size adjusting device for adjusting the display distance of the virtual image, the speed acquisition unit and the display size adjusting device are electrically connected with the control unit, the speed acquisition unit transmits the acquired speed information of the vehicle to the control unit, and the control unit controls the display size adjusting device to adjust the size of the virtual image according to the speed of the vehicle.
Further, the speed of the vehicle is in positive correlation with the distance of the virtual image, the larger the speed of the vehicle is, the larger the size of the virtual image is, and the smaller the speed of the vehicle is, the smaller the size of the virtual image is.
Furthermore, the virtual imaging device is a head-up display system, the virtual imaging device comprises a light source and a reflector, the display size adjusting device comprises a distance adjusting mechanism and an incident angle adjusting mechanism, the distance adjusting mechanism is connected with the light source and can drive the light source to move so as to change the distance between the light source and the adjacent reflector, and the incident angle adjusting mechanism is connected with the reflector and can drive the reflector to rotate so as to change the incident angle when light irradiates on the reflector.
Further, the reflector comprises a first reflector and a second reflector, the first reflector is closer to the light source than the second reflector on the imaging light path, the incident angle adjusting mechanism comprises a first incident angle adjusting mechanism connected with the first reflector and a second incident angle adjusting mechanism connected with the second reflector, and the distance between the light source and the first reflector is adjusted by the distance adjusting mechanism.
Furthermore, the virtual imaging device is intelligent glasses, the virtual imaging device comprises a light source and a light reflecting channel, the display size adjusting device comprises a light source angle adjusting mechanism, and the light source angle adjusting mechanism is connected with the light source and used for adjusting the light ray emitting angle of the light source.
Further, the light reflecting channel is arranged in the glasses legs of the intelligent glasses.
Further, the vehicle speed acquisition unit is a vehicle speed sensor.
The invention also provides an imaging method of the vehicle-mounted virtual imaging system, which comprises the following steps:
s1: acquiring speed information of a vehicle;
s2: and adjusting the size of the virtual image according to the speed of the vehicle.
Further, the speed of the vehicle and the distance of the virtual image are in an inverse correlation relationship, the greater the speed of the vehicle, the closer the display distance of the virtual image, the smaller the speed of the vehicle, and the smaller the speed of the vehicle, the greater the display distance of the virtual image.
The invention further provides a vehicle which comprises the vehicle-mounted virtual imaging system.
As described above, in the present invention, the display size adjustment device is provided in the virtual imaging device, and the display distance is adjusted according to the speed of the vehicle, so that the driver can intuitively feel the speed of the vehicle according to the distance displayed by the virtual image when driving the vehicle. Particularly, in the process of vehicle acceleration or deceleration, the faster the vehicle changes, the faster the size of the virtual image becomes, and the driver can subconsciously adjust the vehicle speed when seeing the virtual image so as to ensure the safety of vehicle running. That is, the vehicle-mounted virtual imaging system provided by the embodiment of the invention can better assist the driver in driving the vehicle.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a system block diagram of a vehicle-mounted virtual imaging system according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a vehicle-mounted virtual imaging system according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a vehicle-mounted virtual imaging system according to a second embodiment of the present invention.
Fig. 4 is a schematic flowchart of an imaging method of the vehicle-mounted virtual imaging system according to the embodiment of the present invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description is given with reference to the accompanying drawings and preferred embodiments.
The invention provides a vehicle-mounted virtual imaging system, a vehicle-mounted virtual imaging method and a vehicle with the vehicle-mounted virtual imaging system.
Fig. 1 is a system block diagram of a vehicle-mounted virtual imaging system according to a first embodiment of the present invention, and fig. 2 is a schematic structural diagram of the vehicle-mounted virtual imaging system according to the first embodiment of the present invention. As shown in fig. 1 and 2, the vehicle-mounted virtual imaging system according to the first embodiment of the present invention includes a speed acquisition unit 10 for acquiring a vehicle speed, a control unit 20, and a virtual imaging device 30 for displaying a virtual image, where the virtual imaging device 30 includes a display size adjustment device 31 for adjusting a display distance of the virtual image. The speed acquisition unit 10 and the display size adjustment device 31 are electrically connected to the control unit 20, the speed acquisition unit 10 transmits the acquired vehicle speed information to the control unit 20, and the control unit 20 controls the display size adjustment device 31 in the virtual imaging device 30 to adjust the size of the virtual image according to the vehicle speed information.
In the present embodiment, by providing the display size adjustment device 31 in the virtual imaging device 30 and adjusting the size of the virtual image in accordance with the speed of the vehicle, the driver can intuitively feel the speed of the vehicle in accordance with the size of the virtual image display when driving the vehicle. Particularly, in the process of vehicle acceleration or deceleration, the faster the vehicle changes, the faster the size of the virtual image changes, and the driver can subconsciously adjust the vehicle speed when seeing the virtual image so as to ensure the safety of vehicle running. That is, the vehicle-mounted virtual imaging system provided by the embodiment of the invention can better assist the driver in driving the vehicle.
Further, in the embodiment, the speed of the vehicle and the size of the virtual image have a positive correlation, and the larger the speed of the vehicle is, the larger the size of the virtual image is; the smaller the vehicle speed, the smaller the size of the virtual image. Through the arrangement, the size of the virtual image is larger and larger when the vehicle speed is faster and faster, so that a driver can clearly feel the improvement of the vehicle speed; likewise, as the vehicle speed becomes slower, the size of the virtual image becomes smaller and smaller so that the driver can clearly feel the decrease in the vehicle speed.
In the present embodiment, the corresponding relationship between the vehicle speed and the size of the virtual image may be preset in the control unit 20, and since the vehicle speed changes gradually, the size of the virtual image also has a trend of gradually increasing or decreasing when the vehicle speed changes.
In the present embodiment, the speed acquisition unit 10 may be a vehicle speed sensor of a vehicle.
Referring to fig. 2, in the present embodiment, the virtual imaging device 30 is a Head Up Display (HUD) system, such as an AR-HUD (enhanced Head Up Display (AR-HUD) system. The head-up display system includes a light source 32 and a reflector, and light emitted from the light source 32 passes through a display screen (not shown) and is reflected by the reflector to project an image on the display screen onto a screen such as a front windshield 40. Correspondingly, the display size adjusting device 31 includes a distance adjusting mechanism 311 and an incident angle adjusting mechanism, the distance adjusting mechanism 311 is connected to the light source 32 and can drive the light source 32 to move so as to change the distance between the light source 32 and the adjacent reflector, the incident angle adjusting mechanism is connected to the reflector and can drive the reflector to rotate so as to change the incident angle when the light irradiates the reflector.
More specifically, in the present embodiment, the reflecting mirror includes a first reflecting mirror 331 and a second reflecting mirror 332, and the first reflecting mirror 331 is disposed closer to the light source 32 than the second reflecting mirror 332 is on the imaging optical path. Accordingly, the incident angle adjusting mechanism includes a first incident angle adjusting mechanism 3121 connected to the first reflecting mirror 331, and a second incident angle adjusting mechanism 3122 connected to the second reflecting mirror 332. The distance adjustment mechanism 311 adjusts the distance between the light source 32 and the first reflector 331.
In this structure, as the vehicle speed becomes slower, the distance adjustment mechanism 311 may move the light source 32 to increase the distance between the light source 32 and the first reflector 331. The first incident angle adjusting mechanism 3121 rotates the first mirror 331 counterclockwise to decrease the angle of the incident angle (see α in fig. 2) on the first mirror 331, and the second incident angle adjusting mechanism 3122 rotates the second mirror 332 counterclockwise to increase the angle of the incident angle (see β in fig. 2) on the second mirror 332, by which the size of the virtual image becomes smaller and smaller. On the contrary, when the vehicle speed is faster and faster, the distance adjustment mechanism 311 moves the light source 32 to decrease the distance between the light source 32 and the first reflecting mirror 331, the first incident angle adjustment mechanism 3121 rotates the first reflecting mirror 331 clockwise to increase the angle of the incident angle on the first reflecting mirror 331, and the second incident angle adjustment mechanism 3122 rotates the second reflecting mirror 332 clockwise to decrease the angle of the incident angle on the second reflecting mirror 332, so that the size of the virtual image is increased by the above adjustment.
Fig. 3 is a schematic structural diagram of a vehicle-mounted virtual imaging system according to a second embodiment of the present invention. As shown in fig. 3, the vehicle-mounted virtual imaging system according to the second embodiment of the present invention is substantially the same as the first embodiment, except that in this embodiment, the virtual imaging device 30 may be a pair of smart glasses, which includes a light source 32 and a reflective channel 34, and correspondingly, the display size adjusting device 31 includes a light source angle adjusting mechanism 313, and the light source angle adjusting mechanism 313 is connected to the light source 32 and adjusts the light emitting angle of the light source 32.
The intelligent glasses can be wirelessly connected with the vehicle to acquire the speed of the vehicle.
In this configuration, as the vehicle speed becomes slower and slower, the light source angle adjustment mechanism 313 rotates the light source 32 counterclockwise to decrease the angle of the incident angle (see γ in fig. 3) entering the light reflection path 34, so that the size of the virtual image becomes smaller and smaller during imaging after the light emitted from the light source 32 is reflected in the light reflection path 34; as the vehicle speed increases, the light source angle adjusting mechanism 313 rotates the light source 32 clockwise to increase the angle of the incident angle into the light reflecting path 34, so that the size of the virtual image increases as the image is formed.
In this embodiment, the reflective channel 34 may be disposed in the side of the glasses, so that the smart glasses have a longer light path reflection distance.
Fig. 4 is a schematic flowchart of an imaging method of the vehicle-mounted virtual imaging system according to the embodiment of the present invention. As shown in fig. 4, the present invention further provides an imaging method based on the above vehicle-mounted virtual imaging system, which includes the following steps:
s1: acquiring speed information of a vehicle;
s2: and adjusting the size of the virtual image according to the speed of the vehicle.
Further, in the present embodiment, the vehicle speed and the display distance of the virtual image have a positive correlation, and the larger the vehicle speed, the larger the size of the virtual image, and the smaller the vehicle speed, the smaller the size of the virtual image.
As described above, in the present invention, the display size adjustment device 31 is provided in the virtual imaging device 30, and the display distance is adjusted according to the speed of the vehicle, so that the driver can intuitively feel the speed of the vehicle according to the distance displayed by the virtual image when driving the vehicle. Particularly, in the process of vehicle acceleration or deceleration, the faster the vehicle changes, the faster the size of the virtual image becomes, and the driver can subconsciously adjust the vehicle speed when seeing the virtual image so as to ensure the safety of vehicle running. That is, the vehicle-mounted virtual imaging system provided by the embodiment of the invention can better assist the driver in driving the vehicle.
The invention further provides a vehicle comprising the vehicle-mounted virtual imaging system, and other technical features of the vehicle are referred to in the prior art and are not repeated herein.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. An on-vehicle virtual imaging system, characterized by: including speed acquisition unit, the control unit who is used for gathering vehicle speed and the virtual imaging device who is used for showing virtual image, virtual imaging device includes the demonstration size adjusting device who adjusts the demonstration distance of virtual image, speed acquisition unit reaches demonstration size adjusting device with the control unit electrical property links to each other, speed acquisition unit transmits the speed information of the vehicle of gathering to the control unit, the control unit is according to the speed control of vehicle show size adjusting device and adjust the size of virtual image.
2. The vehicle-mounted virtual imaging system of claim 1, wherein: the speed of the vehicle and the distance of the virtual image are in a positive correlation relationship, the larger the speed of the vehicle is, the larger the size of the virtual image is, and the smaller the speed of the vehicle is, the smaller the size of the virtual image is.
3. The vehicle-mounted virtual imaging system of claim 1, wherein: the virtual imaging device is a head-up display system and comprises a light source and a reflector, the display size adjusting device comprises a distance adjusting mechanism and an incident angle adjusting mechanism, the distance adjusting mechanism is connected with the light source and can drive the light source to move so as to change the distance between the light source and the reflector adjacent to the light source, and the incident angle adjusting mechanism is connected with the reflector and can drive the reflector to rotate so as to change the incident angle when light irradiates the reflector.
4. The vehicle-mounted virtual imaging system of claim 3, wherein: the reflecting mirror comprises a first reflecting mirror and a second reflecting mirror, the first reflecting mirror is closer to the light source on an imaging light path than the second reflecting mirror, the incident angle adjusting mechanism comprises a first incident angle adjusting mechanism connected with the first reflecting mirror and a second incident angle adjusting mechanism connected with the second reflecting mirror, and the distance between the light source and the first reflecting mirror is adjusted by the distance adjusting mechanism.
5. The vehicle-mounted virtual imaging system of claim 1, wherein: the virtual imaging device is intelligent glasses and comprises a light source and a light reflecting channel, the display size adjusting device comprises a light source angle adjusting mechanism, and the light source angle adjusting mechanism is connected with the light source and adjusts the light ray emitting angle of the light source.
6. The vehicle-mounted virtual imaging system of claim 5, wherein: the light reflecting channel is arranged in the glasses legs of the intelligent glasses.
7. The vehicle-mounted virtual imaging system of claim 1, wherein: the vehicle speed acquisition unit is a vehicle speed sensor.
8. An imaging method of a vehicle-mounted virtual imaging system is characterized in that: the method comprises the following steps:
s1: acquiring speed information of a vehicle;
s2: and adjusting the size of the virtual image according to the speed of the vehicle.
9. The imaging method of the in-vehicle virtual imaging system according to claim 8, characterized in that: the speed of the vehicle is in positive correlation with the size of the virtual image, the larger the speed of the vehicle is, the larger the size of the virtual image is, and the smaller the speed of the vehicle is, the smaller the size of the virtual image is.
10. A vehicle, characterized in that: comprising the vehicle mounted virtual imaging system of any of claims 1 to 7.
CN202111024458.7A 2021-09-02 2021-09-02 Vehicle-mounted virtual imaging system and method and vehicle with same Pending CN113787963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111024458.7A CN113787963A (en) 2021-09-02 2021-09-02 Vehicle-mounted virtual imaging system and method and vehicle with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111024458.7A CN113787963A (en) 2021-09-02 2021-09-02 Vehicle-mounted virtual imaging system and method and vehicle with same

Publications (1)

Publication Number Publication Date
CN113787963A true CN113787963A (en) 2021-12-14

Family

ID=78879496

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111024458.7A Pending CN113787963A (en) 2021-09-02 2021-09-02 Vehicle-mounted virtual imaging system and method and vehicle with same

Country Status (1)

Country Link
CN (1) CN113787963A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012088472A (en) * 2010-10-19 2012-05-10 Seiko Epson Corp Virtual image display apparatus
JP2015184625A (en) * 2014-03-26 2015-10-22 アイシン・エィ・ダブリュ株式会社 Head-up display device
US20160278695A1 (en) * 2013-09-11 2016-09-29 Industrial Technology Research Institute Virtual image display system
US20180015876A1 (en) * 2016-03-24 2018-01-18 Panasonic Intellectual Property Management Co., Ltd. Head-up display device and vehicle
CN109703466A (en) * 2019-01-03 2019-05-03 京东方科技集团股份有限公司 Head-up display device, driving method, vehicle and electronic equipment
JP2020173314A (en) * 2019-04-09 2020-10-22 株式会社Jvcケンウッド Display unit and method for adjusting display unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012088472A (en) * 2010-10-19 2012-05-10 Seiko Epson Corp Virtual image display apparatus
US20160278695A1 (en) * 2013-09-11 2016-09-29 Industrial Technology Research Institute Virtual image display system
JP2015184625A (en) * 2014-03-26 2015-10-22 アイシン・エィ・ダブリュ株式会社 Head-up display device
US20180015876A1 (en) * 2016-03-24 2018-01-18 Panasonic Intellectual Property Management Co., Ltd. Head-up display device and vehicle
CN109703466A (en) * 2019-01-03 2019-05-03 京东方科技集团股份有限公司 Head-up display device, driving method, vehicle and electronic equipment
JP2020173314A (en) * 2019-04-09 2020-10-22 株式会社Jvcケンウッド Display unit and method for adjusting display unit

Similar Documents

Publication Publication Date Title
US10754154B2 (en) Display device and moving body having display device
US10953799B2 (en) Display system, electronic mirror system and movable-body apparatus equipped with the same
CN108473054B (en) Head-up display device
JP6699675B2 (en) Information provision device
US10086762B2 (en) Vehicle display device and vehicle comprising same
CN110869901B (en) User interface device for vehicle and vehicle
US9678341B2 (en) Head-up display apparatus
JP4490605B2 (en) In-vehicle head-up display device
KR101965881B1 (en) Driver assistance apparatus and Vehicle including the same
US20200051529A1 (en) Display device, display control method, and storage medium
CN110579879B (en) Vehicle-mounted head-up display system and control method thereof
KR20190094461A (en) Computer-readable storage medium comprising a head-up display device for a vehicle, a method, apparatus and instructions for controlling the display of the head-up display device
CN110803019A (en) Display system for vehicle and vehicle
KR20170008430A (en) Head up display
KR20140079903A (en) Head up dispay apparatus of vehicle and operating method for the same
CN113787963A (en) Vehicle-mounted virtual imaging system and method and vehicle with same
KR20230034448A (en) Vehicle and method for controlling thereof
WO2020152970A1 (en) Head-up display device
CN110816268B (en) Display device, display control method, and storage medium
US20200049982A1 (en) Display device, display control method, and storage medium
JP6251495B2 (en) Display unit
US20200116998A1 (en) Embedded head-up display device
JPWO2019130860A1 (en) Head-up display device and control program
WO2024105899A1 (en) Head-up display device and vehicle
JP2019001250A (en) Display system and display method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination