WO2016169376A1 - 一种显示装置及利用该显示装置的交通工具 - Google Patents

一种显示装置及利用该显示装置的交通工具 Download PDF

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Publication number
WO2016169376A1
WO2016169376A1 PCT/CN2016/076982 CN2016076982W WO2016169376A1 WO 2016169376 A1 WO2016169376 A1 WO 2016169376A1 CN 2016076982 W CN2016076982 W CN 2016076982W WO 2016169376 A1 WO2016169376 A1 WO 2016169376A1
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Prior art keywords
display device
disposed
front windshield
vehicle body
image
Prior art date
Application number
PCT/CN2016/076982
Other languages
English (en)
French (fr)
Inventor
李文波
董烨飞
武延兵
Original Assignee
京东方科技集团股份有限公司
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Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/325,054 priority Critical patent/US20170184870A1/en
Publication of WO2016169376A1 publication Critical patent/WO2016169376A1/zh

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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
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/604—Polarised screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/22—Display screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/23—Head-up displays [HUD]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G03B21/006—Projectors using an electronic spatial light modulator but not peculiar thereto using LCD's
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/25—Optical features of instruments using filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/33—Illumination features
    • B60K2360/332—Light emitting diodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/33—Illumination features
    • B60K2360/334—Projection means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/77—Instrument locations other than the dashboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/77—Instrument locations other than the dashboard
    • B60K2360/785—Instrument locations other than the dashboard on or in relation to the windshield or windows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/213—Virtual instruments
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G02F1/133548—Wire-grid polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/02—Function characteristic reflective

Definitions

  • the present disclosure relates to the technical field of display devices, and more particularly to a display device and a vehicle using the display device.
  • display devices are often provided to facilitate passengers to watch movies and television programs, but display devices in the prior art generally employ conventional display devices.
  • the display device is often disposed at a position on the side of the steering wheel in the car. Since the position is small, the size of the display device is limited; for a bus, a hanging display device is usually used. The screen is displayed, but the size of the display device is also small, which is inconvenient for the passenger to watch.
  • the present disclosure provides a display device and a vehicle using the same to facilitate a passenger to watch a program while riding, thereby improving the viewing effect.
  • the present disclosure provides a display device including a transmitting device for forming an anti-peep image on a front windshield of a vehicle body, and polarizing glasses for viewing the anti-peep image.
  • the anti-peep image is formed on the front windshield of the vehicle body by the launching device so that the formed image does not interfere with the driver's driving.
  • passengers can wear polarized glasses to view the image on the front windshield.
  • the display area is increased to make it convenient for the passenger to view, so that the passenger located at the rear of the vehicle can clearly view the image and improve the passenger's viewing time. Visual effect.
  • the transmitting device is a transparent display device disposed on the front windshield, the transparent display device includes a polarizer, a two-layer pair of substrates disposed on the polarizer, and a setting a liquid crystal layer between the two substrates.
  • the anti-peep image is directly formed by the transparent display device.
  • the transparent display device is disposed at a position of the front windshield that is higher than a seat height within the vehicle. This makes it easy for passengers to view images.
  • the display device further includes a light source member for providing light to the transparent display device, and the light source member is disposed on the vehicle body. This can increase the light intensity of the display.
  • the light source member is disposed at a position where the wiper of the vehicle body is located to prevent the irradiated light from affecting the driver.
  • the transmitting device is a projection device disposed on the vehicle body, and the projection device illuminates the front windshield to form an anti-peep image.
  • the projection device includes a backlight, a polarizer disposed on the backlight, and a substrate disposed on the two-layer pair of the polarizer, and a liquid crystal layer is disposed between the two substrates. This facilitates the formation of a privacy image by projection.
  • the projection device is a projection device capable of emitting polarized light
  • the display device further comprises a selective reflection component disposed on the front windshield and capable of reflecting polarized light emitted by the projection device .
  • the selective reflection member is capable of transmitting light rays having a polarization direction different from that of the polarized light emitted by the projection device, so that the displayed image is not seen externally, but does not affect the situation in the vehicle from the outside of the window.
  • the selective reflective component is a wire grid polarizer or a cholesteric liquid crystal device.
  • a projection area of the projection device is located at an upper middle portion of the front windshield to facilitate viewing by a passenger.
  • the present disclosure also provides a vehicle including a vehicle body and any of the above-described display devices disposed on the vehicle body.
  • the anti-peep image is formed on the front windshield of the vehicle body by the launching device, so that the formed image does not interfere with the driver's driving.
  • passengers can wear polarized glasses to view the image on the front windshield.
  • the display area is increased, and the passenger is also conveniently viewed, so that the passenger located at the rear of the vehicle can clearly view the image and improve the passenger's presence. The visual effect when watching.
  • FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure
  • FIG. 2 is a cross-sectional view of a display device provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of another display device according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of another display device according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a selective reflection component according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another display device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a selective reflection member according to an embodiment of the present disclosure.
  • embodiments of the present disclosure provide a display device and a vehicle.
  • the anti-spy image is formed on the front windshield by using the launching device, and the passenger can directly view the image on the front windshield through the polarized glasses 30, thereby realizing the effect of viewing the image on the large screen.
  • the image is prevented from affecting the driver's driving.
  • FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure, the display device includes a transmitting device 20 for forming an anti-peep image on a front windshield 10 of a vehicle body, and a polarization for viewing the anti-peep image. Glasses 30.
  • the formed image is prevented from affecting the driver; at the same time, the viewing effect of the passenger is improved.
  • the specific anti-peep image can be formed by using a display device having only one layer of polarizer, so that the illuminated image can only be observed through the glasses with the polarizer.
  • the anti-peep image is formed on the front windshield 10 of the vehicle body by the transmitting device 20 so that the formed image does not interfere with the driving of the driver; meanwhile, the passenger can bring the polarized glasses 30 to view An image on the front windshield 10.
  • the display area is increased, and the passenger is also conveniently viewed, so that the passenger located at the rear of the vehicle can clearly view the image and improve the passenger's presence. The visual effect when watching.
  • Different launching devices 20 can be employed to form an anti-peep image on the front windshield 10.
  • the transmitting device 20 is a transparent display device 21
  • the transparent display device is disposed on the front side glass.
  • the transparent display device 21 may include a polarizer 211, two sets of substrates 212 and 214 disposed on the polarizer 211, and a liquid crystal layer 213 disposed between the two substrates.
  • the transparent display device 21 can be mounted on the front windshield 10 or directly formed integrally with the front windshield 10.
  • the transparent display device 21 is a display panel that does not have a backlight.
  • the specific structure is as shown in FIG. 2 .
  • the display panel includes a polarizer 211 and a two-layer pair of substrates disposed on the polarizer 211 .
  • the two substrates are the first substrate 212 and the second substrate 214, respectively, and the liquid crystal layer 213 is filled between the two substrates.
  • the polarizer 211 causes the formed image to be a privacy image, which the driver cannot observe, and the passenger can view it by the polarized glasses 30 worn.
  • a display screen of a large screen is formed on the front windshield 10 by the above-described transparent display device 21, thereby enhancing the appreciation effect of the passenger.
  • the transparent display device 21 is disposed at a position of the front windshield 10 that is higher than the seat height of the vehicle.
  • the formed anti-peep screen may be located at the upper right of the entire front windshield 10 so that the passenger located at the rear of the vehicle is not blocked by the front passenger while viewing, and the rear view mirror in the vehicle body is prevented from blocking the passenger from viewing the picture.
  • the display device further includes a light source member for supplying light to the transparent display device 21, and the light source member is disposed on the vehicle body.
  • the light source member is disposed on the vehicle body and emits light to illuminate the transparent display device 21, thereby providing light to the transparent display device 21, so that the transparent display device 21 can have sufficient light to display a picture.
  • the light source member is disposed at a position where the wiper of the vehicle body is located.
  • the light source member can be a conventional incandescent lamp or LED lamp, and any light source member capable of providing light to the transparent display device 21 is considered.
  • the additional light source member allows the transparent display device 21 to display the picture clearly at night or on a cloudy day.
  • FIG. 3 is a schematic structural diagram of another display device according to an embodiment of the present disclosure.
  • the transmitting device 20 is a projection device 22 disposed on a vehicle body, and the projection device 22 illuminates the front windshield 10 to form an anti-peep image.
  • the projection device 22 includes a backlight, a polarizer 211 disposed on the backlight, a two-layer pair of substrates disposed on the polarizer 211, and a liquid crystal disposed between the two substrates Floor.
  • the transmitting device 20 uses a projection method to generate an image. Said hair
  • the projecting device is disposed in the vehicle body, and the emitted light is projected onto the front windshield 10 to form an anti-peep image, and the passenger can view the formed anti-peep image through the polarized glasses 30.
  • the transmitting device may be a projector, and the display portion of the projector includes a backlight, a polarizer 211, and a two-layer pair of substrates. A liquid crystal layer is provided between the two substrates, so that a display screen having an anti-spy function can be formed.
  • the projection area of the projection device 22 is located at the upper middle portion of the front windshield 10 so that the formed anti-peeping picture is located at the upper right of the entire front windshield 10, so that the passengers located at the rear of the vehicle are not watching. Will be blocked by the front passengers. At the same time, the rear view mirror in the car body is also prevented from blocking the passengers from viewing the picture.
  • the projection device 22 is a projection device capable of emitting polarized light
  • the display device further includes a selectivity disposed on the front windshield 10 and reflective of the polarized light emitted by the projection device 22.
  • Reflecting member 40 is capable of transmitting light rays having a polarization direction different from that of the polarized light emitted from the projection device 22.
  • the selective reflection member 40 provided in this embodiment can reflect the polarized light emitted by the projection device 22 and can see the light having a different polarization direction from the polarized light.
  • the projection device 22 may be configured by disposing a polarizing plate 23 on the lens of the projection device of the prior art such that the light emitted by the projection device 22 is polarized light, and the polarized light is irradiated to the selective reflecting member. 40 and reflected by it. Passengers can watch through polarized glasses. Further, in the light illuminating from the outside of the vehicle to the selective reflection member 40, the light having the same polarization direction as that of the polarized light emitted from the projection device 22 is reflected, and the polarized light having a different deflection direction can be transmitted, so that it is viewed from the outside. The screen is not displayed, but it does not affect the situation inside the car from the window.
  • the selective reflection member 40 may be a wire grid polarizing plate 41 or a cholesteric liquid crystal device 42.
  • the nano-scale WLP plate can reflect the polarized light vibrating in the direction of the nano-metal strip, and the transmission is perpendicular thereto. Polarized light.
  • the principle of polarization is: light is an electromagnetic wave, which is an alternating propagation of an electric field and a magnetic field, wherein the directions of the electric field and the magnetic field are perpendicular to each other.
  • the cholesteric liquid crystal device 42 When the cholesteric liquid crystal device 42 is used, as shown in FIG. 6 and FIG. 7, after the natural light passes through the left-handed liquid crystal, a part of the left-handed circularly polarized light is reflected back, and another part of the right-handed circularly polarized light passes, thereby realizing the selection of the circularly polarized light. Sexual reflection. In this way, the image projected on the windshield can only be seen by the person inside the car, and the person outside the car cannot see it.
  • Embodiments of the present disclosure also provide a vehicle including a vehicle body and any of the above-described display devices disposed on the vehicle body.
  • the anti-peep image is formed on the front windshield 10 of the vehicle body by the transmitting device 20, so that the formed image does not interfere with the driver's driving.
  • the passenger can bring the polarized glasses 30 to view the image on the front windshield 10.
  • the display area is increased to facilitate passenger viewing. Passengers located at the rear of the car can clearly view the images, improving the visual effect of the passengers while watching.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Combustion & Propulsion (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Instrument Panels (AREA)
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Abstract

一种显示装置以及使用显示装置的交通工具。显示装置包括用于在车体的前挡风玻璃（10）上形成防窥图像的发射装置（20），以及用于观看防窥图像的偏振眼镜（30）。通过发射装置（20）在车体的前挡风玻璃（10）上形成防窥图像，使得形成的图像不会干扰到驾驶员的驾驶。同时乘客可以带上偏振眼镜（30）来观看在前挡风玻璃（10）上的图像。

Description

一种显示装置及利用该显示装置的交通工具 技术领域
本公开内容涉及显示装置的技术领域，尤其涉及一种显示装置以及利用该显示装置的交通工具。
背景技术
为了提高乘客的舒适度，在现有技术中的交通工具中，往往设置显示装置以方便乘客观看影视节目，但现有技术中的显示装置通常采用常规的显示装置。例如，在小汽车中，显示装置常常设置在车厢内位于方向盘的一侧的位置，由于该位置较小，显示装置的尺寸被限制；对于大客车来说，通常采用吊挂式的显示装置来显示画面，但是该显示装置的尺寸也较小，不方便乘客观看。
发明内容
本公开内容提供了一种显示装置以及利用该显示装置的交通工具，用以方便乘客在乘坐时观看节目，提高观看效果。
本公开内容提供了一种显示装置，该显示装置包括用于在车体前挡风玻璃上形成防窥图像的发射装置，以及用于观看所述防窥图像的偏振眼镜。
在上述技术方案中，通过发射装置在车体的前挡风玻璃上形成防窥图像，使得形成的图像不会干扰到驾驶员的驾驶。同时，乘客可以带上偏振眼镜来观看在前挡风玻璃上的图像。通过采用上述发射装置在前挡风玻璃上形成防窥图像，增大了显示的面积以使得方便乘客观看，从而位于车内后部的乘客可以清晰的观看到图像，提高了乘客在观看时的视觉效果。
可选地，所述发射装置为设置在所述前挡风玻璃上的透明显示设备，所述透明显示设备包括起偏器、设置在所述起偏器的两层对盒的基板、以及设置在所述两层基板之间的液晶层。在这种情况下，通过透明显示设备直接形成防窥图像。
可选地，所述透明显示设备被设置在所述前挡风玻璃的高出车内的座椅高度的位置。这方便乘客观看图像。
可选地，所述显示装置还包括用于给所述透明显示设备提供光线的光源件，且所述光源件设置在车体上。这可以提高显示画面的光线强度。
可选地，所述光源件设置在所述车体的雨刷所在的位置，以避免照射的光线影响驾驶员。
可选地，所述发射装置为设置在所述车体上的投影装置，所述投影装置照射所述前挡风玻璃以形成防窥图像。所述投影装置包括背光源、设置在所述背光源上的起偏器、以及设置在所述起偏器的两层对盒的基板，所述两层基板之间设置有液晶层。这便于通过投射的方式形成防窥图像。
可选地，所述投影装置为能够发射偏振光的投影装置，并且所述显示装置还包括设置在所述前挡风玻璃上并可以反射所述投影装置发射出的偏振光的选择性反射部件。所述选择性反射部件能够透射与所述投影装置发射出的偏振光偏振方向不同的光线，从而使得在外部看不到显示的画面，但不影响从车窗外观看车内的情况。
可选地，所述选择性反射部件为线栅偏振片或胆甾相液晶器件。
可选地，所述投影装置的投影区域位于所述前挡风玻璃的中上部以方便乘客观看。
本公开内容还提供了一种交通工具，该交通工具包括车体以及设置在所述车体上的上述任一种显示装置。
在上述技术方案中，通过发射装置在车体的前挡风玻璃上形成防窥图像，从而使得形成的图像不会干扰到驾驶员的驾驶。同时，乘客可以带上偏振眼镜来观看在前挡风玻璃上的图像。通过采用上述发射装置在前挡风玻璃上形成防窥图像，增大了显示的面积，也便利于乘客进行观看，从而使得位于车内后部的乘客可以清晰的观看到图像，提高了乘客在观看时的视觉效果。
附图说明
图1为本公开内容的实施例提供的显示装置的结构示意图；
图2为本公开内容的实施例提供的显示装置的剖视图；
图3为本公开内容的实施例提供的另一种显示装置的结构示意图；
图4为本公开内容的实施例提供的另一种显示装置的结构示意图；
图5为本公开内容的实施例提供的选择性反射部件的结构示意图；
图6为本公开内容的实施例提供的另一种显示装置的结构示意图；
图7为本公开内容的实施例提供的选择性反射部件的结构示意图。
附图标记：
10-前挡风玻璃 20-发射装置   21-透明显示设备
211-起偏器    212-第一基板  213-液晶层
214-第二基板  22-投影装置   23-偏振片
30-偏振眼镜   40-选择性反射部件  41-线栅偏振片
42-胆甾相液晶器件
具体实施方式
为了方便乘客在乘坐汽车时观看节目，提高乘客的观看效果，本公开内容的实施例提供了一种显示装置及交通工具。在本技术方案中，采用发射装置在前挡风玻璃上形成防窥图像，乘客通过偏振眼镜30可以直接观看在前挡风玻璃上的图像，从而实现了在大屏幕上观看图像的效果。通过采用防窥图像，避免了图像影响司机的驾驶。为使本公开内容的目的、技术方案和优点更加清楚，以下以非限制性的实施例为例对本公开内容作进一步详细说明。
图1为本公开内容的实施例提供的显示装置的结构示意图，该显示装置包括在车体前挡风玻璃10上形成防窥图像的发射装置20，以及用于观看所述防窥图像的偏振眼镜30。
通过采用防窥图像，避免了形成的图像对驾驶员造成影响；同时，提高了乘客的观看效果。具体的防窥图像可以通过采用只有一层偏光片的显示装置来形成，使得照射出的图像只能通过带有偏光片的眼镜才能观察到。在本实施例中，通过发射装置20在车体的前挡风玻璃10上形成防窥图像，使得形成的图像不会干扰到驾驶员的驾驶；同时，乘客可以带上偏振眼镜30来观看在前挡风玻璃10上的图像。通过采用上述发射装置20在前挡风玻璃10上形成防窥图像，增大了显示的面积，也便利于乘客观看，使得位于车内后部的乘客可以清晰地观看到图像，提高了乘客在观看时的视觉效果。
可以采用不同的发射装置20来在前挡风玻璃10上形成防窥图像。
作为一个例子，如图1所示，该发射装置20为透明显示设备21， 该透明显示设备被设置在前挡方玻璃上。
图2为本公开内容的实施例提供的显示装置21的剖视图。所述透明显示设备21可以包括起偏器211、设置在所述起偏器211上的两层对盒的基板212和214、以及设置在所述两层基板之间的液晶层213。
该透明显示设备21可以镶嵌在前挡风玻璃10上或者直接与前挡风玻璃10一体成型。该透明显示设备21为不具备背光源的显示面板，其具体结构如图2所示，该显示面板包括一个起偏器211、设置在起偏器211上的两层对盒的基板。两层基板分别为第一基板212及第二基板214，且两层基板之间填充有液晶层213。在透明显示设备21工作时，外界的太阳光或者灯光照射到透明显示设备21上，使得透明显示设备21进行显示。起偏器211使形成的图像为防窥图像，驾驶员无法观察到该防窥图像，而乘客可以通过佩戴的偏振眼镜30进行观看。通过上述透明显示设备21在前挡风玻璃10上形成大屏幕的显示画面，提高乘客的欣赏效果。
可选地，在形成防窥图像时，透明显示设备21设置在所述前挡风玻璃10的高出车内座椅高度的位置。形成的防窥画面可以位于整个前挡风玻璃10的右上方，使得位于车内后部的乘客在观看时不会受到前面乘客的阻挡，同时也避免车体内的后视镜阻挡乘客观看画面。
此外，作为另一例子，该显示装置还包括用于给所述透明显示设备21提供光线的光源件，且所述光源件设置在车体上。具体地，该光源件设置在车体上并发出光线以照射到透明显示设备21上，从而为透明显示设备21提供光线，使得透明显示设备21能够有足够的光线来显示画面。具体地，该光源件设置在所述车体的雨刷所在的位置。该光源件可以为常见的白炽灯或者LED灯，并且能够给透明显示设备21提供光线的任何光源件被考虑。增设的光源件使得透明显示设备21可以在夜晚或者阴天的情况下也可以清晰地显示画面。
图3为本公开内容的实施例提供的另一种显示装置的结构示意图。如图3所示，发射装置20为设置在车体上的投影装置22，所述投影装置22照射所述前挡风玻璃10以形成防窥图像。所述投影装置22包括背光源，设置在所述背光源上的起偏器211，设置在所述起偏器211上的两层对盒的基板，且所述两层基板之间设置有液晶层。
本实施例提供的发射装置20采用投射的方式来产生图像。所述发 射装置设置在车体内，其发射出的光线投射到前挡风玻璃10上以形成防窥图像，乘客可以通过偏振眼镜30来观看形成的防窥图像。发射装置可以为投影仪，且该投影仪的显示部分包含背光源、起偏器211以及两层对盒的基板。在两层基板之间设置有液晶层，从而能够形成具有防窥功能的显示画面。
所述投影装置22的投影区域位于所述前挡风玻璃10的中上部，以便形成的防窥画面位于整个前挡风玻璃10的右上方，从而使得位于车内后部的乘客在观看时不会受到前面乘客的阻挡。同时，也避免车体内的后视镜阻挡乘客观看画面。
作为一种可选的实施例，投影装置22为能够发射偏振光的投影装置，并且所述显示装置还包括设置在前挡风玻璃10上并可以反射投影装置22发射出的偏振光的选择性反射部件40。选择性反射部件40能够透射与投影装置22发射出的偏振光偏振方向不同的光线。具体地，如图4及图6所示，本实施例提供的选择性反射部件40可以反射投影装置22发射出的偏振光，并可以透视与该偏振光偏振方向不同的光线。作为一个例子，投影装置22可以通过在现有技术中的投影装置的镜头上设置一个偏振片23来构成，使得投影装置22发射出的光线为偏振光线，并且该偏振光线照射到选择性反射部件40上并被其反射。乘客可以通过偏振眼镜进行观看。此外，在从车外照射到选择性反射部件40的光线中，与投影装置22发射的偏振光的偏振方向相同的光线被反射，而与其偏转方向不同的偏振光能够被透射，使得在外部看不到显示的画面，但不影响从车窗外观看车内的情况。
该选择性反射部件40可以为线栅偏振片41或胆甾相液晶器件42。具体地，如图5所示，在采用纳米级WLP(wire grid polarizer，线栅偏振片41)的情况下，纳米级WLP板可反射沿纳米金属条方向振动的偏振光，而透射与之垂直的偏振光。这样，可以实现偏振光的选择性透射，从而实现偏振片23的功能。其偏振原理是：光是一种电磁波，是电场和磁场的交替传播，其中电场和磁场的方向相互垂直。当金属丝的方向和电磁波中的电矢量方向平行时，其中电场平行于金属丝的方向的光会引起金属丝中电子的振动，电矢量就在金属丝中激起电流，光的能量被转化为热量，导致没有电磁波通过偏振片23。当电矢量方向和金属丝的方向垂直时，电磁波不能在金属丝中激起电流，使得电 磁波可以透过偏振片23。
在采用胆甾相液晶器件42时，如图6及图7所示，自然光经过左旋液晶后，一部分左旋圆偏振光被反射回，另外一部分右旋圆偏振光通过，从而实现圆偏振光的选择性反射。这样，对于投影在挡风玻璃上的图像来说，只能车内的人员可以看见，而车外的人员是无法看到的。
本公开内容的实施例还提供了一种交通工具，该交通工具包括车体以及设置在所述车体上的上述任一种显示装置。
在上述实施例中，通过发射装置20在车体的前挡风玻璃10上形成防窥图像，从而使得形成的图像不会干扰到驾驶员的驾驶。同时，乘客可以带上偏振眼镜30来观看在前挡风玻璃10上的图像。通过采用上述发射装置20在前挡风玻璃10上形成防窥图像，增大了显示的面积，便利于乘客观看。位于车内后部的乘客可以清晰的观看到图像，提高了乘客在观看时的视觉效果。
显然，本领域的技术人员可以对本公开内容进行各种改动和变型而不脱离本公开内容的精神和范围。这样，倘若本公开内容的这些修改和变型属于本公开内容的权利要求及其等同技术的范围之内，则本公开内容也意图包含这些改动和变型在内。

Claims (10)

  1. 一种显示装置，包括用于在车体前挡风玻璃上形成防窥图像的发射装置，以及用于观看所述防窥图像的偏振眼镜。
  2. 如权利要求1所述的显示装置，其中，所述发射装置为设置在所述前挡风玻璃上的透明显示设备，所述透明显示设备包括起偏器、设置在所述起偏器上的两层对盒的基板、以及设置在所述两层基板之间的液晶层。
  3. 如权利要求2所述的显示装置，其中，所述透明显示设备被设置在所述前挡风玻璃的高出车内座椅高度的位置。
  4. 如权利要求2所述的显示装置，还包括用于给所述透明显示设备提供光线的光源件，且所述光源件设置在车体上。
  5. 如权利要求3所述的显示装置，其中，所述光源件设置在所述车体的雨刷所在的位置。
  6. 如权利要求1所述的显示装置，其中，所述发射装置为设置在所述车体上的投影装置，所述投影装置照射所述前挡风玻璃以形成防窥图像；其中，所述投影装置包括背光源、设置在所述背光源上的起偏器、设置在所述起偏器上的两层对盒的基板、以及设置所述两层基板之间的液晶层。
  7. 如权利要求6所述的显示装置，其中，所述投影装置为能够发射偏振光的投影装置，并且所述显示装置包括设置在所述前挡风玻璃上并反射所述投影装置发射出的偏振光的选择性反射部件，所述选择性反射部件能够透射与所述投影装置发射出的偏振光偏振方向不同的光线。
  8. 如权利要求7所述的显示装置，其中，所述选择性反射部件为线栅偏振片或胆甾相液晶器件。
  9. 如权利要求6所述的显示装置，其中，所述投影装置的投影区域位于所述前挡风玻璃的中上部。
  10. 一种交通工具，包括车体以及设置在所述车体上的如权利要求1～9任一项所述的显示装置。
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