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WO2018000806A1 - 3d抬头显示系统和方法 - Google Patents

3d抬头显示系统和方法 Download PDF

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Publication number
WO2018000806A1
WO2018000806A1 PCT/CN2017/070641 CN2017070641W WO2018000806A1 WO 2018000806 A1 WO2018000806 A1 WO 2018000806A1 CN 2017070641 W CN2017070641 W CN 2017070641W WO 2018000806 A1 WO2018000806 A1 WO 2018000806A1
Authority
WO
WIPO (PCT)
Prior art keywords
display device
prism
windshield
lens
head
Prior art date
Application number
PCT/CN2017/070641
Other languages
English (en)
French (fr)
Inventor
孙湃
于洁
于杨冰
Original Assignee
京东方科技集团股份有限公司
北京京东方光电科技有限公司
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 京东方科技集团股份有限公司, 北京京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/543,970 priority Critical patent/US20180213210A1/en
Publication of WO2018000806A1 publication Critical patent/WO2018000806A1/zh

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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/344—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] with head-mounted left-right displays
    • 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
    • B60K35/10—Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
    • 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
    • B60K35/211—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 producing three-dimensional [3D] effects, e.g. stereoscopic images
    • 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]
    • B60K35/232—Head-up displays [HUD] controlling the projection distance of virtual images depending on the condition of the vehicle or the driver
    • 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]
    • B60K35/235—Head-up displays [HUD] with means for detecting the driver's gaze direction or eye points
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
    • G02B30/36—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers using refractive optical elements, e.g. prisms, in the optical path between the images and the observer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/346—Image reproducers using prisms or semi-transparent mirrors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/363—Image reproducers using image projection 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
    • B60K2360/1526—Dual-view displays
    • 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
    • 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]
    • 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
    • G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
    • G02B2027/0134—Head-up displays characterised by optical features comprising binocular systems of stereoscopic type
    • 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
    • G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems

Definitions

  • the present invention relates to a 3D heads up display system and method.
  • the Head Up Display (HUD) technology was originally applied to aeronautical technology to allow pilots to obtain the information they need during driving to avoid looking down at the dashboard.
  • the car HUD technology has flourished, and its basic principle is to project images onto the windshield through the LCD screen and optical system.
  • the vehicle HUD can generally project the vehicle information (vehicle speed, driving distance, rotation speed, etc.) of the instrument panel on the front windshield within the driver's field of vision, thereby allowing the driver to easily know even if the driver is driving the vehicle. Travel information, whereby the driver can drive safely by recognizing important driving information.
  • vehicle information vehicle speed, driving distance, rotation speed, etc.
  • conventional HUDs are generally constructed to provide only two-dimensional (2D) display, and the desired information cannot be visually displayed.
  • Embodiments of the present invention are directed to providing a 3D heads up display system to facilitate visual display of 3D pictures to an observer.
  • a 3D heads up display system is provided.
  • a 3D heads up display system may include: a signal receiving module for receiving a signal; and a signal processing module for receiving and processing a signal received by the signal receiving module to generate a left eye picture signal and a right eye picture signal a left head display device for receiving a left eye picture signal and generating a left eye picture; a right head display device for receiving a right eye picture signal and generating a right eye picture; and a left optical system for projecting by the left head display device a left eye picture; and a right optical system for projecting a right eye picture generated by the right head display device.
  • the 3D heads up display system may further include a backlight control module or an LED driving device connected to the left head display device and the right head display device, respectively, to alternately provide left heading The display device and the backlight in the right head display device or alternately drive the left head display device and the right head display device for display.
  • a backlight control module or an LED driving device connected to the left head display device and the right head display device, respectively, to alternately provide left heading The display device and the backlight in the right head display device or alternately drive the left head display device and the right head display device for display.
  • a 3D heads up display system can be used in a vehicle and the vehicle has a windshield.
  • the left optical system may include a left convex lens and a left lens material, the left convex lens being disposed between the left head display device and the windshield, the left lens film being attached to the windshield In a first position, the first position corresponds to one of an observer's left and right eyes;
  • the right optical system may include a right convex lens and a right lens material, the right convex lens being disposed on the right head display Between the device and the windshield, the right lens film is attached to a second position on the windshield, the second position corresponding to the other of the observer's left and right eyes.
  • the left lens material can include a left tri-prism assembly
  • the right lens material can include a right tri-prism assembly
  • the left tri-prism assembly may include a left prism main body portion and a plurality of left three prism portions formed on the left prism main body portion, each of the left three prism portions having a refractive surface to be incident on the left triangular prism assembly.
  • the light is deflected toward the left side;
  • the right triangular prism assembly may include a right prism body portion and a plurality of right three prism portions formed on the right prism body portion, each of the right three prism portions having a refractive surface to be incident on the right prism assembly The light is deflected to the right.
  • the left optical system may include a first left convex lens, a left lens, and a second left convex lens, the first left convex lens, the left lens, and the second left convex lens along a direction from the left head display device to the windshield Between the left head display device and the windshield, in order to project light from the left head display device onto a first position on the windshield, the first position being in the observer's left and right eyes
  • one or the right optical system may include a first right convex lens, a right lens, and a second right convex lens, the first right convex lens, the right lens, and the second right convex lens extending from the right head display device to the wind shield
  • the direction of the glass is sequentially disposed between the right head display device and the windshield such that light emitted from the right head display device is projected onto the second position on the windshield, the second position being opposite to the observer's left
  • the other one in the eye and the right eye corresponds.
  • the left lens can include a left tri-prism assembly; the right lens can include a right tri-prism assembly.
  • the left tri-prism assembly may include a left prism main body portion and a plurality of left three prism portions formed on the left prism main body portion, each of the left three prism portions having a refractive surface to be incident on the left triangular prism assembly.
  • the light is deflected toward the left or right side;
  • the right tri-prism assembly may include a right prism body portion and a plurality of right three prism portions formed on the right prism body portion, each of the right three prism portions having a refractive surface for injecting
  • the light from the right tri-prism assembly is deflected to the right or left.
  • the backlight control module or the LED driving device may output a first driving square wave and a second driving square wave to the left head display device and the right head display device, respectively, wherein the first driving square wave and the second driving wave
  • the driving square waves differ by half a cycle.
  • a method for 3D heads up display is also provided.
  • the method may include the steps of: receiving an input signal; processing the received input signal to generate a left eye picture signal and a right eye picture signal; causing the left head display device to receive the left eye picture signal and generating a left eye picture; a right eye picture that causes the right head display device to receive the right eye picture signal and a left eye picture generated by the left head display device through the left optical system; and a right eye display device generated by the right eye display device through the right optical system projection Right eye picture.
  • the method may further include the steps of: causing the backlight control module to alternately provide backlights in the left head display device and the right head display device or to cause the LED driving device to alternately drive the left head display device and the right head display The device is displayed.
  • the 3D heads up display system can be used in a vehicle and the vehicle has a windshield.
  • the step of projecting the left eye picture generated by the left head display device by the left optical system includes passing the left eye picture through the left convex lens of the left optical system and projecting to the first surface attached to the windshield Positioning on the left lens material to refract the left eye image through the left lens material to change direction and reflect through the windshield into one of the observer's left and right eyes; and/or through right optics
  • the step of projecting the right eye image generated by the right head display device includes: passing the right eye image through the right convex lens of the right optical system and projecting onto the right lens film attached to the second position on the windshield, The right eye picture is refracted by the right lens material to change direction and is reflected by the windshield to the other of the observer's left and right eyes.
  • the step of projecting the left-eye picture generated by the left-head display device by the left optical system may include: sequentially passing the left-eye picture through the first left convex lens, the left lens, and the second left convex lens of the left optical system, and then Projected to the first position on the windshield, the left eye image is reflected by the windshield and injected into one of the observer's left and right eyes; and/or projected by the right optical system by the right head display device
  • the step of the eye picture may include: sequentially passing the right eye picture through the first right convex lens, the right lens, and the second right convex lens of the right optical system, and then projecting to the second position on the windshield, the right eye image being reflected by the windshield Then enter the other of the observer's left and right eyes.
  • the left lens material may include a left triangular prism assembly including a left prism body portion and a plurality of left three prism portions formed on the left prism body portion, each of the left three prism portions Having a refractive surface to deflect light incident on the left prism assembly toward the left or right side;
  • the right lens material may include a right tri-prism assembly including a right prism main body portion and a plurality of right three prism portions formed on the right prism main body portion, each of the right three prism portions having a refractive surface for shooting The light entering the right prism assembly is deflected to the right or left.
  • the left lens may include a left tri-prism assembly including a left prism main body portion and a plurality of left three prism portions formed on the left prism main body portion, each of the left three prism portions having a refractive surface Having the light incident on the left triangular prism assembly deflected toward the left or right side;
  • the right lens may include a right triangular prism assembly including a right prism body portion and a plurality of right prisms formed on the right prism body portion And each of the right three prism portions has a refractive surface to deflect the light incident on the right triangular prism assembly toward the right or left side.
  • the step of causing the backlight control module to alternately provide backlights in the left heads up display device and the right heads up display device or to cause the LED driver to alternately drive the left heads up display device and the right heads up display device for display may include: respectively Head up display device and right head display device output A driving square wave and a second driving square wave, wherein the first driving square wave and the second driving square wave are different by a half cycle.
  • driving information through two head-up display devices and corresponding two sets of optical systems, driving information, road condition information, navigation information, and the like can be projected on the windshield for naked-eye 3D display, driving The driver can have a more visual understanding of vehicle status and road condition information, making driving easier and safer.
  • FIG. 1 is a block diagram of a 3D heads up display system in accordance with an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a 3D head-up display system applied to an automobile according to an embodiment of the present invention
  • 3(A) is a schematic illustration of an optical system for a 3D heads up display system in accordance with one embodiment of the present invention
  • 3(B)-3(C) are schematic views of a left lens film and a right lens film used in the optical system of FIG. 3(A);
  • 4(A) is a schematic diagram of an optical system for a 3D head-up display system in accordance with another embodiment of the present invention.
  • FIG. 4(B)-4(C) are schematic views of a left lens and a right lens used in the optical system of FIG. 4(A);
  • FIG. 5 is a flow chart of a method for 3D heads up display in accordance with an embodiment of the present invention.
  • a 3D head-up display system includes: a signal receiving module for receiving a signal; and a signal processing module for receiving and processing a signal received by the signal receiving module to generate a left eye a picture and a right eye picture; a left head display device for receiving and emitting a left eye picture generated by the signal processing module; a right head display device for receiving and emitting a right eye picture generated by the signal processing module; and a left optical system for The left eye image emitted by the left head display device is projected into the observer's left eye; and the right optical system is used to project the right eye image emitted by the right head display device into the observer's right eye.
  • driving information, road condition information, navigation information, and the like can be projected on the front windshield for three-dimensional (3D) display through two head-up display devices and corresponding two-group optical systems, so that Drivers can get a better picture of vehicle status and road conditions, making driving easier and safer.
  • a 3D heads up display system in accordance with an embodiment of the present invention includes:
  • the signal receiving module 2 can receive signals from a center console or a traveling computer, and can also receive signals from portable devices such as mobile phones and tablet computers, and the received signals can be text signals and sounds.
  • signals such as signals or image signals;
  • a signal processing module 4 configured to receive and process a signal received by the signal receiving module 2 to generate a left eye picture signal and a right eye picture signal;
  • a left head display device (HUD) 10 for receiving a left eye picture signal and generating a left eye picture
  • the right head display device 20 is configured to receive a right eye picture signal and generate a right eye picture
  • a left optical system 30 for projecting a left eye image generated by the left heads up display device 10, for example, a first position 300 projected onto the windshield;
  • the right optical system 40 is for projecting a right eye picture generated by the right head display device 20, for example, a second position 400 different from the first position 300 projected onto the windshield.
  • the signal is transmitted between the signal receiving module 2, the signal processing module 4, the left head display device 10, and the right head display device 20.
  • the signal transmission between these components can be implemented by wire, or by wireless communication such as Bluetooth or WIFI. Way to achieve.
  • FIG. 2 is a schematic diagram of a 3D head-up display system applied to an automobile in accordance with an embodiment of the present invention.
  • the first position 300 corresponds to the driver's left eye
  • the second position 400 corresponds to the driver's right eye
  • the left head display device 10 projects or projects.
  • the light passes through the left optical system 30 and the windshield 8 into the left eye of the driver
  • the light emitted or projected by the right-head display device 20 passes through the right optical system 40 and the windshield 8 into the driver's right eye, and then
  • the front of the windshield 8 is imaged to form a three-dimensional image.
  • the positional relationship and orientation of the left eye, the right eye, the windshield, and the 3D head-up display system of the driver shown in FIG. 2 are merely exemplary. In actual use, the position and orientation of the 3D head-up display system can be specifically set according to conditions such as the position and orientation of the driver's left eye, right eye, and windshield.
  • the 3D heads up display system may further include a backlight control module 6 connected to the left head display device 10 and the right head display device 20, respectively, to alternately provide a left head display device and a right Head up to display the backlight in the device.
  • a backlight control module 6 connected to the left head display device 10 and the right head display device 20, respectively, to alternately provide a left head display device and a right Head up to display the backlight in the device.
  • the 3D heads up display system may also include an LED driver 6'.
  • the LED driving device 6' is connected to the left head display device 10 and the right head display device 20, respectively, to drive the left head display device and the right head display device to be alternately displayed.
  • the backlight control module 6 or the LED driving device 6' By controlling the backlight control module 6 or the LED driving device 6', it is possible to control the left head display device and the right head display device to be alternately displayed or projected, so that the left eye system and the right eye system can be ensured in combination with the left optical system and the right optical system. Enter the driver's left and right eyes separately, using the left and right eyes to observe the difference
  • the screen produces a clear, naked-eye 3D display with no problems such as ghosting or dizziness.
  • the backlight control module 6 or the LED driving device 6' outputs the first driving square wave 12 and the second driving square wave 22 to the left head up display device 10 and the right head display device 20, respectively, as shown in FIGS. 1 and 2.
  • the first driving square wave 12 and the second driving square wave 22 are different by half a cycle. More preferably, the first driving square wave 12 and the second driving square wave 22 have a frequency of at least 120 Hz to ensure that the driver does not observe a poor display effect such as flicker.
  • Figure 3 (A) is a schematic illustration of an optical system for a 3D heads up display system in accordance with one embodiment of the present invention.
  • the left optical system 30 includes a left convex lens 32 and a left lens material 34, and the left convex lens 32 is disposed between the left head display device 10 and the windshield 8, and the left lens film 34 is attached to the windshield 8 One position is 300.
  • the divergent light beam L 1 emitted or projected from the left head display device 10 is first converted into a parallel light beam L 2 by the left convex lens 32, and then the parallel light beam L 2 is incident on the first position 300 attached to the windshield 8
  • the left lens material 34 is deflected toward the left side, thereby achieving the purpose of the left eye image being incident on the left eye of the driver.
  • the right optical system 40 includes a right convex lens 42 and a right lens film 44, the right convex lens 42 is disposed between the right head display device 20 and the windshield 8, and the right lens film 44 is attached to the windshield 8
  • the two positions 400 are such that the light emitted from the right head display device 20 is deflected toward the right side.
  • the optical path in the right optical system 40 is similar to the optical path in the left optical system 30 described above, and will not be described herein.
  • the left-eye picture and the right-eye picture respectively emitted or projected from the left-head display device 10 and the right-head display device 20 can be respectively refracted into the left and right eyes of the driver, thereby ensuring clarity.
  • the naked eye 3D display effect avoids problems such as ghosting and crosstalk.
  • the right optical system and/or the left optical system may also have different configurations or configurations depending on the actual situation.
  • the left convex lens 32 and/or the right convex lens 42 may be replaced by a lens group, respectively, to achieve higher magnification, or the magnification may be adjusted.
  • the left lens film 34 includes a left tri-prism assembly 342.
  • the left tri-prism assembly 342 includes a left prism main body portion 3422 and a plurality of left three prism portions 3424 formed on the left prism main body portion 3422, each of the left three prism portions 3424 having a first left prism side surface 3425 forming a refractive surface R and The second left prism side 3427 adjacent to the first left prism side 3425, the first left prism side 3425 and the second left prism side 3427 intersect to form a left prism angle ⁇ left so that the light incident on the left triangular prism assembly 342 faces the left side. deflection.
  • the direction of emission of the light deflected by the left triangular prism assembly 342 is left- related to the left prism angle ⁇ , so that the left triangular prism assembly having the appropriate left prism angle ⁇ left can be selected to
  • the left eye picture is refracted to change direction and is reflected by the windshield into the driver's left eye.
  • the right lens film 44 includes a right triangular prism assembly 442.
  • the right triangular prism assembly 442 includes a right prism main body portion 4422 and a plurality of right three prism portions 4424 formed on the right prism main body portion 4422, each right triangular prism portion 4424 having a first right prism side surface 4425 forming a refractive surface R and The second right prism side 4427 adjacent to the first right prism side 4425, the first right prism side 4425 and the second right prism side 4427 intersect to form a right prism angle ⁇ right so that the light incident on the right triangular prism assembly 442 is directed to the right. deflection.
  • (A) in the optical path shown is visible emission direction 442 deflected right prism assembly rays correlation from FIG. 3 and the right prism angle ⁇ Right, therefore, may be selected suitably a right prism angle ⁇ Right right prism assembly to The right eye is refracted to change direction and is reflected by the windshield into the driver's right eye.
  • the right lens material may also be configured to refract light to the left and reflect through the windshield to the left eye of the driver, correspondingly the left lens material is configured to refract light to the right It is reflected by the windshield to the driver's right eye.
  • the left optical system 30' includes a first left convex lens 32', a left lens 34', and a second left convex lens 36', and the first left convex lens 32', the left lens 34', and the second left convex lens 36' are raised from the left
  • the direction of the display device 10 to the windshield 8 is sequentially disposed between the left head display device 10 and the windshield 8 to deflect the light emitted from the left head display device 10 toward the left side.
  • the divergent light beam L' 1 emitted or projected from the left head display device 10 first converges to the light beam L' 2 through the first left convex lens 32', and then the light beam L' 2 passes the left lens 34' toward the left side.
  • the deflection becomes a light beam L' 3
  • the light beam L' 3 is further converged into a parallel light beam L' 4 via the second left convex lens 36'
  • the parallel light beam L' 4 is projected on the first position 300 of the windshield 8, and then
  • the reflection of the windshield 8 and the parallel beam L' 4 are incident on the driver's left eye, thereby achieving the purpose of the left eye image entering the driver's left eye.
  • the right optical system 40' includes a first right convex lens 42', a right lens 44', and a second right convex lens 46', and the first right convex lens 42', the right lens 44', and the second right convex lens 46' are raised from the right
  • the direction of the display device 20 to the windshield 8 is sequentially disposed between the right head display device 20 and the windshield 8 to deflect the light emitted from the right head display device 20 toward the right side.
  • the optical path in the right optical system 40' is similar to that in the left optical system 30' described above, and will not be described herein.
  • each component should be appropriately set or adjusted according to the positional relationship between the left and right eyes of the driver, the windshield, the left HUD, and the right HUD.
  • the optical system for the left 30 ' if the left by a first convex lens 32' can have a divergent light beam L 1 'is converted to a parallel beam, a second set may not be left lens 36'.
  • the right optical system 40' can have a similar arrangement to the left optical system 30'.
  • the left lens 34' may have a similar configuration to the left lens material 34.
  • the left lens 34' includes a left triangular prism assembly 342'.
  • the left tri-prism assembly 342' includes a left prism main body portion 3422' and a plurality of left three prism portions 3424' formed on the left prism main body portion 3422', each of the left three prism portions 3424' having a first left forming a refractive surface R
  • the prism side 3425' and the second left prism side 3427' adjacent to the first left prism side 3425', the first left prism side 3425' and the second left prism side 3427' intersect to form a left prism angle ⁇ ' left , so that The light incident on the left triple prism assembly 342' is deflected toward the left side.
  • the right lens 44' includes a right triangular prism assembly 442'.
  • the right triangular prism assembly 442' includes a right prism main body portion 4422' and a plurality of right triangular prism portions 4424' formed on the right prism main body portion 4422', each right triangular prism portion 4424' having a first right forming a refractive surface R
  • the prism side 4425' and the second right prism side 4427' adjacent to the first right prism side 4425', the first right prism side 4425' and the second right prism side 4427' intersect to form a right prism angle ⁇ ' right so that The light incident on the right triangular prism assembly 442' is deflected toward the right.
  • An optical path shown in (A) seen from Figure 4 are correlated and right prism assembly 442 'emitted from the direction of deflection of the light of the right prism angle [theta]' the right, and therefore, it can be adjusted of the right prism angle [theta] 'the right, to the right
  • the eye picture is accurately refracted to the second position 400.
  • the present invention also provides a method for 3D heads up display.
  • the method can include the following steps:
  • the first position corresponds to the driver's left eye
  • the second position corresponds to the driver's right eye
  • the above method may further include the following steps:
  • the backlight control module alternately provides backlighting to the left head display device and the right head display device or causes the LED driving device to drive the left head display device and the right head display device to alternately display.
  • step S5 specifically includes: passing the left-eye picture through the left convex lens of the left optical system and projecting onto the left lens material attached to the first position on the windshield to refract the left-eye picture To change direction and reflect through the windshield into one of the driver's left and right eyes.
  • step S6 specifically includes: passing the right eye image through the right convexity of the right optical system Mirroring and projecting onto the right lens material attached to the second position on the windshield to refract the right eye image to change direction and reflect through the windshield to the driver's left and right eyes One in the middle.
  • step S5 specifically includes: sequentially passing the left-eye picture through the first left convex lens, the left lens, and the second left convex lens of the left optical system, and then projecting to the first position on the windshield, the left eye picture is The windshield reflects and enters one of the driver's left and right eyes.
  • step S6 specifically includes: sequentially passing the right-eye picture through the first right convex lens, the right lens, and the second right convex lens of the right optical system, and then projecting to the second position on the windshield, the right eye picture
  • the windshield reflects and enters the other of the driver's left and right eyes.
  • step S7 specifically includes: respectively outputting a first driving square wave and a second driving square wave to the left head-up display device and the right head-up display device, wherein the first driving square wave and the second driving square wave are different by half a cycle .
  • the embodiments described herein are targeted to the driver of the vehicle, the picture or image may be projected or provided within the field of view of one or more other observers of the vehicle (eg, passengers, etc.).
  • the embodiments described herein are obviously also applicable to applications other than vehicles that require a heads-up display.
  • the embodiments are not intended to limit the invention, and are merely disclosed to illustrate one or more exemplary aspects of the invention.

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Abstract

一种3D抬头显示系统和用于3D抬头显示的方法。该3D抬头显示系统包括：用于接收信号的信号接收模块（2）；信号处理模块（4），用于接收并处理信号接收模块（2）接收到的信号以生成左眼画面信号和右眼画面信号；左抬头显示设备（10），用于接收左眼画面信号并生成左眼画面；右抬头显示设备（20），用于接收右眼画面信号并生成右眼画面；左光学系统（30），用于投射由左抬头显示设备（10）生成的左眼画面；和右光学系统（40），用于投射由右抬头显示设备（20）生成的右眼画面。

Description

3D抬头显示系统和方法 技术领域
本发明涉及一种3D抬头显示系统和方法。
背景技术
抬头显示(Head Up Display，HUD)技术最初应用于航空技术，方便飞行员获取驾驶过程中所需的信息，以避免低头查看仪表盘的信息。近年来，车载HUD技术蓬勃发展，其基本原理是通过液晶屏和光学系统将图像投影在挡风玻璃上。
车载HUD一般可以将仪表面板的车辆信息(车速、行驶距离、转速等)投影在驾驶员视野范围内的前挡风玻璃上，从而允许即使驾驶员在驾驶车辆的过程中，他也能够容易获知行驶信息，由此驾驶员能够通过识别重要的行驶信息来安全地驾驶。
然而，传统的HUD一般被构造成仅提供二维(2D)显示，不能形象地显示所需信息。
发明内容
本发明的实施例旨在提供一种3D抬头显示系统，以便于向观察者直观地显示3D画面。
根据本发明的一个方面，提供一种3D抬头显示系统。
根据一个示例性实施例，3D抬头显示系统可包括：用于接收信号的信号接收模块；信号处理模块，用于接收并处理信号接收模块接收到的信号以生成左眼画面信号和右眼画面信号；左抬头显示设备，用于接收左眼画面信号并生成左眼画面；右抬头显示设备，用于接收右眼画面信号并生成右眼画面；左光学系统，用于投射由左抬头显示设备生成的左眼画面；和右光学系统，用于投射由右抬头显示设备生成的右眼画面。
在一个实施例中，所述3D抬头显示系统还可包括背光控制模块或LED驱动装置，该背光控制模块或LED驱动装置分别连接至左抬头显示设备和右抬头显示设备，以交替地提供左抬头显示设备和右抬头显示设备中的背光或交替地驱动左抬头显示设备和右抬头显示设备进行显示。
在一个实施例中，3D抬头显示系统可用于车辆中，并且车辆具有挡风玻璃。
在一个实施例中，所述左光学系统可包括左凸透镜和左透镜膜材，所述左凸透镜设置在左抬头显示设备与挡风玻璃之间，所述左透镜膜材贴在挡风玻璃上的第一位置上，所述第一位置与观察者的左眼和右眼中的一只相对应；所述右光学系统可包括右凸透镜和右透镜膜材，所述右凸透镜设置在右抬头显示设备与挡风玻璃之间，所述右透镜膜材贴在挡风玻璃上的第二位置上，所述第二位置与观察者的左眼和右眼中的另一只相对应。
在一个实施例中，所述左透镜膜材可包括左三棱镜组件，所述右透镜膜材可包括右三棱镜组件。
在一个实施例中，所述左三棱镜组件可包括左棱镜主体部和形成在左棱镜主体部上的多个左三棱镜部，每一个所述左三棱镜部具有折射面以使射入左三棱镜组件的光线朝左侧偏转；所述右三棱镜组件可包括右棱镜主体部和形成在右棱镜主体部上的多个右三棱镜部，每一个所述右三棱镜部具有折射面，以使射入右三棱镜组件的光线朝右侧偏转。
在一个实施例中，所述左光学系统可包括第一左凸透镜、左透镜和第二左凸透镜，第一左凸透镜、左透镜和第二左凸透镜沿从左抬头显示设备至挡风玻璃的方向依次设置在左抬头显示设备与挡风玻璃之间，以使从左抬头显示设备发出的光线投射到挡风玻璃上的第一位置上，所述第一位置与观察者的左眼和右眼中的一只相对应；和/或所述右光学系统可包括第一右凸透镜、右透镜和第二右凸透镜，第一右凸透镜、右透镜和第二右凸透镜沿从右抬头显示设备至挡风玻璃的方向依次设置在右抬头显示设备与挡风玻璃之间，以使从右抬头显示设备发出的光线投射到挡风玻璃上的第二位置上，所述第二位置与观察者的左 眼和右眼中的另一只相对应。
在一个实施例中，所述左透镜可包括左三棱镜组件；所述右透镜可包括右三棱镜组件。
在一个实施例中，所述左三棱镜组件可包括左棱镜主体部和形成在左棱镜主体部上的多个左三棱镜部，每一个所述左三棱镜部具有折射面以使射入左三棱镜组件的光线朝左侧或右侧偏转；所述右三棱镜组件可包括右棱镜主体部和形成在右棱镜主体部上的多个右三棱镜部，每一个所述右三棱镜部具有折射面，以使射入右三棱镜组件的光线朝右侧或左侧偏转。
在一个实施例中，所述背光控制模块或LED驱动装置可分别向左抬头显示设备和右抬头显示设备输出第一驱动方波和第二驱动方波，其中，第一驱动方波和第二驱动方波相差半个周期。
根据本发明的另一方面，还提供一种用于3D抬头显示的方法。
根据一个示例性的实施例，所述方法可包括如下步骤：接收输入信号；处理接收到的输入信号以生成左眼画面信号和右眼画面信号；使左抬头显示设备接收左眼画面信号并生成的左眼画面；使右抬头显示设备接收右眼画面信号并生成的右眼画面；通过左光学系统投射由左抬头显示设备生成的左眼画面；和通过右光学系统投射由右抬头显示设备生成的右眼画面。
在一个实施例中，所述方法还可包括如下步骤：使背光控制模块交替地提供左抬头显示设备和右抬头显示设备中的背光或使LED驱动装置交替地驱动左抬头显示设备和右抬头显示设备进行显示。
在一个实施例中，所述3D抬头显示系统可用于车辆中，并且所述车辆具有挡风玻璃。
在一个实施例中，通过左光学系统投射由左抬头显示设备生成的左眼画面的步骤包括：使左眼画面通过左光学系统的左凸透镜并投射到贴在挡风玻璃上的所述第一位置上的左透镜膜材上，以通过左透镜膜材将左眼画面折射以改变方向并通过挡风玻璃反射至观察者的左眼和右眼中的一只中；和/或通过右光学 系统投射由右抬头显示设备生成的右眼画面的步骤包括：使右眼画面通过右光学系统的右凸透镜并投射到贴在挡风玻璃上的所述第二位置上的右透镜膜材上，以通过右透镜膜材将右眼画面折射以改变方向并通过挡风玻璃反射至观察者的左眼和右眼中的另一只。
在一个实施例中，通过左光学系统投射由左抬头显示设备生成的左眼画面的步骤可包括：使左眼画面依次通过左光学系统的第一左凸透镜、左透镜和第二左凸透镜，然后投射到挡风玻璃上的第一位置，左眼画面经挡风玻璃反射后射入观察者的左眼和右眼中的一只；和/或通过右光学系统投射由右抬头显示设备生成的右眼画面的步骤可包括：使右眼画面依次通过右光学系统的第一右凸透镜、右透镜和第二右凸透镜，然后投射到挡风玻璃上的第二位置，右眼画面经挡风玻璃反射后射入观察者的左眼和右眼中的另一只。
在一个实施例中，所述左透镜膜材可包括左三棱镜组件，所述左三棱镜组件包括左棱镜主体部和形成在左棱镜主体部上的多个左三棱镜部，每一个所述左三棱镜部具有折射面以使射入左三棱镜组件的光线朝左侧或右侧偏转；
所述右透镜膜材可包括右三棱镜组件，所述右三棱镜组件包括右棱镜主体部和形成在右棱镜主体部上的多个右三棱镜部，每一个所述右三棱镜部具有折射面以使射入右三棱镜组件的光线朝右侧或左侧偏转。
根据一个实施例，所述左透镜可包括左三棱镜组件，所述左三棱镜组件包括左棱镜主体部和形成在左棱镜主体部上的多个左三棱镜部，每一个所述左三棱镜部具有折射面以使射入左三棱镜组件的光线朝左侧或右侧偏转；所述右透镜可包括右三棱镜组件，所述右三棱镜组件包括右棱镜主体部和形成在右棱镜主体部上的多个右三棱镜部，每一个所述右三棱镜部具有折射面以使射入右三棱镜组件的光线朝右侧或左侧偏转。
在一个实施例中，使背光控制模块交替地提供左抬头显示设备和右抬头显示设备中的背光或使LED驱动装置交替地驱动左抬头显示设备和右抬头显示设备进行显示的步骤可包括：分别向左抬头显示设备和右抬头显示设备输出第 一驱动方波和第二驱动方波，其中第一驱动方波和第二驱动方波相差半个周期。
在本发明的3D抬头显示系统和方法中，通过两个抬头显示设备和对应的两组光学系统，可以将行驶信息、路况信息、导航信息等投影在挡风玻璃上进行裸眼3D显示，使驾驶者可以更形象地了解车辆状态和路况信息，从而使驾驶更简单和安全。
附图说明
通过下文中参照附图对本发明所作的描述，本发明的其它目的和优点将显而易见，并可帮助对本发明有全面的理解。
图1是根据本发明实施例的3D抬头显示系统的框图；
图2是根据本发明实施例的3D抬头显示系统应用于汽车中的示意图；
图3(A)是根据本发明的一个实施例的用于3D抬头显示系统的光学系统的示意图；
图3(B)-3(C)是用于图3(A)的光学系统的左透镜膜材和右透镜膜材的示意图；
图4(A)是根据本发明的另一个实施例的用于3D抬头显示系统的光学系统的示意图；
图4(B)-4(C)是用于图4(A)的光学系统的左透镜和右透镜的示意图；
图5是根据本发明实施例的用于3D抬头显示的方法的流程图。
具体实施方式
下面通过实施例，并结合附图，对本发明的技术方案作进一步具体的说明。在说明书中，相同或相似的附图标号指示相同或相似的部件。下述参照附图对本发明实施方式的说明旨在对本发明的总体发明构思进行解释，而不应当理解为对本发明的一种限制。
另外，在下面的详细描述中，为便于解释，阐述了许多具体的细节以提供对本披露实施例的全面理解。然而明显地，一个或多个实施例在没有这些具体细节的情况下也可以被实施。在其他情况下，公知的结构和装置以图示的方式体现以简化附图。
为了便于描述，本文中使用了方向性的表述方式“前”、“后”、“左”和“右”，如无特别说明，这些方向一般是针对驾驶员在正常驾驶时的状态而言的。
根据本发明的总体技术构思的一个方面，提供一种3D抬头显示系统，包括：用于接收信号的信号接收模块；信号处理模块，用于接收并处理信号接收模块接收到的信号以生成左眼画面和右眼画面；左抬头显示设备，用于接收并射出信号处理模块生成的左眼画面；右抬头显示设备，用于接收并射出信号处理模块生成的右眼画面；左光学系统，用于将左抬头显示设备射出的左眼画面投射到观察者的左眼中；和右光学系统，用于将右抬头显示设备射出的右眼画面投射到观察者的右眼中。
在本发明的3D抬头显示系统中，通过两个抬头显示设备和对应的两组光学系统，可以将行驶信息、路况信息、导航信息等投影在前挡风玻璃上进行三维(3D)显示，使驾驶者可以更形象地了解车辆状态和路况信息，从而使驾驶更简单和安全。
图1是根据本发明的实施例的3D抬头显示系统的框图，如图所示，根据本发明实施例的3D抬头显示系统包括：
用于接收信号的信号接收模块2，信号接收模块2可以接收来自中控台或行车电脑的信号，也可以接收来自例如手机、平板电脑等便携式设备的信号，接收的信号可以是文本信号、声音信号或图像信号等各种信号；
信号处理模块4，用于接收并处理信号接收模块2接收到的信号以生成左眼画面信号和右眼画面信号；
左抬头显示设备(HUD)10，用于接收左眼画面信号并生成左眼画面；
右抬头显示设备20，用于接收右眼画面信号并生成右眼画面；
左光学系统30，用于投射由左抬头显示设备10生成的左眼画面，例如，投射到挡风玻璃上的第一位置300；以及
右光学系统40，用于投射由右抬头显示设备20生成的右眼画面，例如，投射到挡风玻璃上的不同于第一位置300的第二位置400。
信号在信号接收模块2、信号处理模块4、左抬头显示设备10和右抬头显示设备20之间传输，这些部件之间的信号传输可以通过有线方式实现，也可以通过例如蓝牙、WIFI等无线通信方式实现。
图2是根据本发明实施例的3D抬头显示系统应用于汽车中的示意图。如图2所示，当驾驶员在驾驶过程中直视前方时，第一位置300与驾驶员的左眼对应，第二位置400与驾驶员的右眼对应，左抬头显示设备10射出或投影的光线经过左光学系统30、挡风玻璃8射入驾驶员的左眼中，右抬头显示设备20射出或投影的光线经过右光学系统40、挡风玻璃8射入驾驶员的右眼中，然后在挡风玻璃8前方成像，形成三维图像。
需要说明的是，图2所示的驾驶员的左眼、右眼、挡风玻璃、3D抬头显示系统的位置关系和定向仅是示例性的。在实际使用中，可根据驾驶员的左眼、右眼和挡风玻璃的位置及定向等条件对3D抬头显示系统的位置和定向进行具体地设定。
进一步地，根据本发明实施例的3D抬头显示系统还可以包括背光控制模块6，背光控制模块6分别连接至左抬头显示设备10和右抬头显示设备20，以交替地提供左抬头显示设备和右抬头显示设备中的背光。可替代地，对于不使用背光的抬头显示设备，例如OLED类型的抬头显示设备，3D抬头显示系统还可以包括LED驱动装置6’。例如，LED驱动装置6’分别连接至左抬头显示设备10和右抬头显示设备20，以驱动左抬头显示设备和右抬头显示设备交替显示。通过背光控制模块6或LED驱动装置6’的控制，能够控制左抬头显示设备和右抬头显示设备交替显示或投影，这样，结合左光学系统和右光学系统，可以确保左眼画面和右眼画面分别进入驾驶者的左眼和右眼，利用左眼和右眼观察到的不同 画面产生清晰的裸眼3D显示效果，不会产生重影、眩晕等问题。
根据一个实施例，背光控制模块6或LED驱动装置6’分别向左抬头显示设备10和右抬头显示设备20输出第一驱动方波12和第二驱动方波22，如图1和2所示，第一驱动方波12和第二驱动方波22相差半个周期。更优选地，第一驱动方波12和第二驱动方波22的频率至少为120Hz，以保证驾驶员不会观察到闪烁等不良显示效果。
图3(A)是根据本发明的一个实施例的用于3D抬头显示系统的光学系统的示意图。具体地，左光学系统30包括左凸透镜32和左透镜膜材34，左凸透镜32设置在左抬头显示设备10与挡风玻璃8之间，左透镜膜材34贴在挡风玻璃8上的第一位置300上。具体地，从左抬头显示设备10射出或投影出的发散光束L1首先经过左凸透镜32而转变成平行光束L2，然后平行光束L2射入贴在挡风玻璃8上的第一位置300处的左透镜膜材34而被朝向左侧偏转，从而实现了左眼画面射入驾驶员的左眼的目的。
进一步地，右光学系统40包括右凸透镜42和右透镜膜材44，右凸透镜42设置在右抬头显示设备20与挡风玻璃8之间，右透镜膜材44贴在挡风玻璃8上的第二位置400上，以使从右抬头显示设备20发出的光线朝右侧偏转。右光学系统40中的光路与上述的左光学系统30中的光路类似，在此不再赘述。
通过设计这样的光学系统，可以确保分别从左抬头显示设备10和右抬头显示设备20射出或投影出的左眼画面和右眼画面能够分别折射入驾驶员的左眼和右眼中，从而确保清晰的裸眼3D显示效果，避免产生重影、串扰等问题。
在未示出的其他实施例中，右光学系统和/或左光学系统也可以根据实际情况具有不同的配置或构造。例如，左凸透镜32和/或右凸透镜42可分别由一透镜组替代，以实现更高的放大倍数、或者可对放大倍数进行调节。
如图3(B)所示，根据一个实施例，左透镜膜材34包括左三棱镜组件342。进一步地，左三棱镜组件342包括左棱镜主体部3422和形成在左棱镜主体部3422上的多个左三棱镜部3424，每一个左三棱镜部3424具有形成折射面R的第 一左棱镜侧面3425和与第一左棱镜侧面3425相邻的第二左棱镜侧面3427，第一左棱镜侧面3425和第二左棱镜侧面3427相交形成左棱镜角θ左，以使射入左三棱镜组件342的光线朝左侧偏转。从图3(A)中示出的光路可见，被左三棱镜组件342偏转的光线的射出方向与左棱镜角θ左相关，因此，可以选择具有适当左棱镜角θ左的左三棱镜组件，以将左眼画面折射以改变方向并经挡风玻璃反射后进入驾驶员的左眼中。
进一步地，如图3(C)所示，右透镜膜材44包括右三棱镜组件442。进一步地，右三棱镜组件442包括右棱镜主体部4422和形成在右棱镜主体部4422上的多个右三棱镜部4424，每一个右三棱镜部4424具有形成折射面R的第一右棱镜侧面4425和与第一右棱镜侧面4425相邻的第二右棱镜侧面4427，第一右棱镜侧面4425和第二右棱镜侧面4427相交形成右棱镜角θ右，以使射入右三棱镜组件442的光线朝右侧偏转。从图3(A)中示出的光路可见，被右三棱镜组件442偏转的光线的射出方向与右棱镜角θ右相关，因此，可以选择具有适当右棱镜角θ右的右三棱镜组件，以将右眼画面折射以改变方向并经挡风玻璃反射后进入驾驶员的右眼中。
在未示出的另一实施例中，右透镜膜材也可以配置为将光线向左折射并通过挡风玻璃反射到驾驶员的左眼，相应地左透镜膜材配置为将光线向右折射并通过挡风玻璃反射到驾驶员的右眼。
图4是根据本发明的另一个实施例的用于3D抬头显示系统的光学系统的示意图。具体地，左光学系统30’包括第一左凸透镜32’、左透镜34’和第二左凸透镜36’，第一左凸透镜32’、左透镜34’和第二左凸透镜36’沿从左抬头显示设备10至挡风玻璃8的方向依次设置在左抬头显示设备10与挡风玻璃8之间，以使从左抬头显示设备10发出的光线朝左侧偏转。具体地，从左抬头显示设备10射出或投影出的发散光束L’1首先经过第一左凸透镜32’而初步收敛为光束L’2，然后光束L’2经过左透镜34’而朝向左侧偏转变为光束L’3，光束L’3经过第二左凸透镜36’而被进一步收敛为平行光束L’4，平行光束L’4投射在挡风玻璃8的第一位置 300上，然后经挡风玻璃8的反射，平行光束L’4射入驾驶员的左眼中，从而实现了左眼画面射入驾驶员的左眼的目的。
进一步地，右光学系统40’包括第一右凸透镜42’、右透镜44’和第二右凸透镜46’，第一右凸透镜42’、右透镜44’和第二右凸透镜46’沿从右抬头显示设备20至挡风玻璃8的方向依次设置在右抬头显示设备20与挡风玻璃8之间，以使从右抬头显示设备20发出的光线朝右侧偏转。右光学系统40’中的光路与上述的左光学系统30’中的光路类似，在此不再赘述。
需要说明的是，图4(A)中所示的各个光学部件的定位或位置关系仅仅是示意性的。各部件的位置和/或定向应根据驾驶员的左右眼、挡风玻璃、左HUD以及右HUD之间的位置关系进行适当的设定或调整。
在另一实施例中，对于左光学系统30’而言，如果通过第一左凸透镜32’已经可以将发散光束L1’转化为平行光束，则可以不设置第二左凸透镜36’。右光学系统40’可与左光学系统30’具有类似的设置。
通过设计这样的光学系统，也可以确保分别从左抬头显示设备10和右抬头显示设备20射出或投影出的左眼画面和右眼画面能够分别射入驾驶员的左眼和右眼中，从而确保清晰的裸眼3D显示效果，避免产生重影、串扰等问题。
类似地，左透镜34’可以具有与左透镜膜材34类似的构造。具体地，如图4(B)所示，左透镜34’包括左三棱镜组件342’。进一步地，左三棱镜组件342’包括左棱镜主体部3422’和形成在左棱镜主体部3422’上的多个左三棱镜部3424’，每一个左三棱镜部3424’具有形成折射面R的第一左棱镜侧面3425’和与第一左棱镜侧面3425’相邻的第二左棱镜侧面3427’，第一左棱镜侧面3425’和第二左棱镜侧面3427’相交形成左棱镜角θ’左，以使射入左三棱镜组件342’的光线朝左侧偏转。从图4(A)中示出的光路可见，被左三棱镜组件342’偏转的光线的射出方向与左棱镜角θ’左相关，因此，可以调节所述左棱镜角θ’左，以将左眼画面准确地折射至第一位置300。
进一步地，如图4(C)所示，右透镜44’包括右三棱镜组件442’。进一步地， 右三棱镜组件442’包括右棱镜主体部4422’和形成在右棱镜主体部4422’上的多个右三棱镜部4424’，每一个右三棱镜部4424’具有形成折射面R的第一右棱镜侧面4425’和与第一右棱镜侧面4425’相邻的第二右棱镜侧面4427’，第一右棱镜侧面4425’和第二右棱镜侧面4427’相交形成右棱镜角θ’右，以使射入右三棱镜组件442’的光线朝右侧偏转。从图4(A)中示出的光路可见，被右三棱镜组件442’偏转的光线的射出方向与右棱镜角θ’右相关，因此，可以调节所述右棱镜角θ’右，以将右眼画面准确地折射至第二位置400。
本发明还提供一种用于3D抬头显示的方法。在一个实施例中，如图5所示，该方法可包括如下步骤：
S1、接收输入信号；
S2、处理接收到的输入信号以生成左眼画面信号和右眼画面信号；
S3、使左抬头显示设备接收左眼画面信号并生成的左眼画面；
S4、使右抬头显示设备接收右眼画面信号并生成的右眼画面；
S5、通过左光学系统投射由左抬头显示设备生成的左眼画面，例如，投射到挡风玻璃上的第一位置；和
S6、通过右光学系统投射由右抬头显示设备生成的右眼画面，例如，投射到挡风玻璃上的不同于第一位置的第二位置。
当驾驶员在驾驶过程中直视前方时，例如，所述第一位置与驾驶员的左眼对应，所述第二位置与驾驶员的右眼对应。
进一步地，上述方法还可包括如下步骤：
S7、使背光控制模块交替地向左抬头显示设备和右抬头显示设备提供背光或使LED驱动装置驱动左抬头显示设备和右抬头显示设备交替显示。
根据一个实施例，步骤S5具体包括：使左眼画面通过左光学系统的左凸透镜并投射到贴在挡风玻璃上的所述第一位置上的左透镜膜材上，以将左眼画面折射以改变方向并经挡风玻璃反射至驾驶员的左眼和右眼中的一只中。
根据一个实施例，步骤S6具体包括：使右眼画面通过右光学系统的右凸透 镜并投射到贴在挡风玻璃上的所述第二位置上的右透镜膜材上，以将右眼画面折射以改变方向并经挡风玻璃反射至驾驶员的左眼和右眼中的另一只中。
根据另一个实施例，步骤S5具体包括：使左眼画面依次通过左光学系统的第一左凸透镜、左透镜和第二左凸透镜，然后投射到挡风玻璃上的第一位置，左眼画面经挡风玻璃反射后射入驾驶员的左眼和右眼中的一只中。
根据另一个实施例，步骤S6具体包括：使右眼画面依次通过右光学系统的第一右凸透镜、右透镜和第二右凸透镜，然后投射到挡风玻璃上的第二位置，右眼画面经挡风玻璃反射后射入驾驶员的左眼和右眼中的另一只中。
根据一个实施例，步骤S7具体包括：分别向左抬头显示设备和右抬头显示设备输出第一驱动方波和第二驱动方波，其中第一驱动方波和第二驱动方波相差半个周期。
尽管本文所描述的实施例以车辆的驾驶员为对象，但是画面或图像可以被投影或提供在车辆的一个或多个其它观察者(例如乘客等)的视野内。本文所描述的实施例显然也可以应用于除了车辆以外的其它需要抬头显示的应用场合。为了这个目的，这些实施例不意图限制本发明，其仅被公开用以说明本发明的一个或多个示例性的方面。
虽然本发明总体构思的一些实施例已被图示和说明，本领域普通技术人员将理解，在不背离本总体发明构思的原则和精神的情况下，可对这些实施例做出改变，本发明的范围以权利要求和它们的等同物限定。

Claims (18)

  1. 一种3D抬头显示系统，包括：
    用于接收信号的信号接收模块；
    信号处理模块，用于接收并处理信号接收模块接收到的信号以生成左眼画面信号和右眼画面信号；
    左抬头显示设备，用于接收左眼画面信号并生成左眼画面；
    右抬头显示设备，用于接收右眼画面信号并生成右眼画面；
    左光学系统，用于投射由左抬头显示设备生成的左眼画面；和
    右光学系统，用于投射由右抬头显示设备生成的右眼画面。
  2. 根据权利要求1所述的3D抬头显示系统，还包括背光控制模块或LED驱动装置，该背光控制模块或LED驱动装置分别连接至左抬头显示设备和右抬头显示设备，以交替地提供左抬头显示设备和右抬头显示设备中的背光或交替地驱动左抬头显示设备和右抬头显示设备进行显示。
  3. 根据权利要求1所述的3D抬头显示系统，其中，所述3D抬头显示系统用于车辆中，所述车辆具有挡风玻璃。
  4. 根据权利要求3所述的3D抬头显示系统，其中，所述左光学系统包括左凸透镜和左透镜膜材，所述左凸透镜设置在左抬头显示设备与挡风玻璃之间，所述左透镜膜材贴在挡风玻璃上的第一位置上，所述第一位置与观察者的左眼和右眼中的一只相对应；和/或
    所述右光学系统包括右凸透镜和右透镜膜材，所述右凸透镜设置在右抬头显示设备与挡风玻璃之间，所述右透镜膜材贴在挡风玻璃上的第二位置上，所述第二位置与观察者的左眼和右眼中的另一只相对应。
  5. 根据权利要求4所述的3D抬头显示系统，其中，所述左透镜膜材包括左三棱镜组件，所述右透镜膜材包括右三棱镜组件。
  6. 根据权利要求5所述的3D抬头显示系统，其中，所述左三棱镜组件包括左棱镜主体部和形成在左棱镜主体部上的多个左三棱镜部，每一个所述左三棱镜部具有折射面以使射入左三棱镜组件的光线朝左侧偏转；
    所述右三棱镜组件包括右棱镜主体部和形成在右棱镜主体部上的多个右三棱镜部，每一个所述右三棱镜部具有折射面，以使射入右三棱镜组件的光线朝右侧偏转。
  7. 根据权利要求3所述的3D抬头显示系统，其中，所述左光学系统包括第一左凸透镜、左透镜和第二左凸透镜，第一左凸透镜、左透镜和第二左凸透镜沿从左抬头显示设备至挡风玻璃的方向依次设置在左抬头显示设备与挡风玻璃之间，以使从左抬头显示设备发出的光线投射到挡风玻璃上的第一位置上，所述第一位置与观察者的左眼和右眼中的一只相对应；和/或
    所述右光学系统包括第一右凸透镜、右透镜和第二右凸透镜，第一右凸透镜、右透镜和第二右凸透镜沿从右抬头显示设备至挡风玻璃的方向依次设置在右抬头显示设备与挡风玻璃之间，以使从右抬头显示设备发出的光线投射到挡风玻璃上的第二位置上，所述第二位置与观察者的左眼和右眼中的另一只相对应。
  8. 根据权利要求7所述的3D抬头显示系统，其中，所述左透镜包括左三棱镜组件所述右透镜包括右三棱镜组件。
  9. 根据权利要求8所述的3D抬头显示系统，其中，所述左三棱镜组件包括左棱镜主体部和形成在左棱镜主体部上的多个左三棱镜部，每一个所述左三棱 镜部具有折射面以使射入左三棱镜组件的光线朝左侧或右侧偏转；
    所述右三棱镜组件包括右棱镜主体部和形成在右棱镜主体部上的多个右三棱镜部，每一个所述右三棱镜部具有折射面，以使射入右三棱镜组件的光线朝右侧或左侧偏转。
  10. 根据权利要求3所述的3D抬头显示系统，其中，所述背光控制模块或LED驱动装置分别向左抬头显示设备和右抬头显示设备输出第一驱动方波和第二驱动方波，其中，第一驱动方波和第二驱动方波相差半个周期。
  11. 一种用于3D抬头显示的方法，包括如下步骤：
    接收输入信号；
    处理接收到的输入信号以生成左眼画面信号和右眼画面信号；
    使左抬头显示设备接收左眼画面信号并生成的左眼画面；
    使右抬头显示设备接收右眼画面信号并生成的右眼画面；
    通过左光学系统投射由左抬头显示设备生成的左眼画面；和
    通过右光学系统投射由右抬头显示设备生成的右眼画面。
  12. 根据权利要求11所述的方法，还包括如下步骤：使背光控制模块交替地提供左抬头显示设备和右抬头显示设备中的背光或使LED驱动装置交替地驱动左抬头显示设备和右抬头显示设备进行显示。
  13. 根据权利要求11所述的方法，其中，所述3D抬头显示系统用于车辆中，所述车辆具有挡风玻璃。
  14. 根据权利要求13所述的方法，其中，通过左光学系统投射由左抬头显示设备生成的左眼画面的步骤包括：使左眼画面通过左光学系统的左凸透镜并投射到贴在挡风玻璃上的所述第一位置上的左透镜膜材上，以通过左透镜膜材 将左眼画面折射以改变方向并通过挡风玻璃反射至观察者的左眼和右眼中的一只中；和/或
    通过右光学系统投射由右抬头显示设备生成的右眼画面的步骤包括：使右眼画面通过右光学系统的右凸透镜并投射到贴在挡风玻璃上的所述第二位置上的右透镜膜材上，以通过右透镜膜材将右眼画面折射以改变方向并通过挡风玻璃反射至观察者的左眼和右眼中的另一只。
  15. 根据权利要求13所述的方法，其中，通过左光学系统投射由左抬头显示设备生成的左眼画面的步骤包括：使左眼画面依次通过左光学系统的第一左凸透镜、左透镜和第二左凸透镜，然后投射到挡风玻璃上的第一位置，左眼画面经挡风玻璃反射后射入观察者的左眼和右眼中的一只；和/或
    通过右光学系统投射由右抬头显示设备生成的右眼画面的步骤包括：使右眼画面依次通过右光学系统的第一右凸透镜、右透镜和第二右凸透镜，然后投射到挡风玻璃上的第二位置，右眼画面经挡风玻璃反射后射入观察者的左眼和右眼中的另一只。
  16. 根据权利要求14所述的方法，其中，所述左透镜膜材包括左三棱镜组件，所述左三棱镜组件包括左棱镜主体部和形成在左棱镜主体部上的多个左三棱镜部，每一个所述左三棱镜部具有折射面以使射入左三棱镜组件的光线朝左侧或右侧偏转；
    所述右透镜膜材包括右三棱镜组件，所述右三棱镜组件包括右棱镜主体部和形成在右棱镜主体部上的多个右三棱镜部，每一个所述右三棱镜部具有折射面以使射入右三棱镜组件的光线朝右侧或左侧偏转。
  17. 根据权利要求15所述的方法，其中，所述左透镜包括左三棱镜组件，所述左三棱镜组件包括左棱镜主体部和形成在左棱镜主体部上的多个左三棱镜部，每一个所述左三棱镜部具有折射面以使射入左三棱镜组件的光线朝左侧 或右侧偏转；
    所述右透镜包括右三棱镜组件，所述右三棱镜组件包括右棱镜主体部和形成在右棱镜主体部上的多个右三棱镜部，每一个所述右三棱镜部具有折射面以使射入右三棱镜组件的光线朝右侧或左侧偏转。
  18. 根据权利要求12所述的方法，其中，使背光控制模块交替地提供左抬头显示设备和右抬头显示设备中的背光或使LED驱动装置交替地驱动左抬头显示设备和右抬头显示设备进行显示的步骤包括：分别向左抬头显示设备和右抬头显示设备输出第一驱动方波和第二驱动方波，其中第一驱动方波和第二驱动方波相差半个周期。
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