WO2012079205A1 - 一种显示系统和显示方法 - Google Patents

一种显示系统和显示方法 Download PDF

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Publication number
WO2012079205A1
WO2012079205A1 PCT/CN2010/002209 CN2010002209W WO2012079205A1 WO 2012079205 A1 WO2012079205 A1 WO 2012079205A1 CN 2010002209 W CN2010002209 W CN 2010002209W WO 2012079205 A1 WO2012079205 A1 WO 2012079205A1
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WO
WIPO (PCT)
Prior art keywords
signal
panel
eye
color separation
switching
Prior art date
Application number
PCT/CN2010/002209
Other languages
English (en)
French (fr)
Inventor
姜太平
杨峰
Original Assignee
湖南创图视维科技有限公司
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 湖南创图视维科技有限公司 filed Critical 湖南创图视维科技有限公司
Priority to US13/994,803 priority Critical patent/US9204139B2/en
Publication of WO2012079205A1 publication Critical patent/WO2012079205A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/361Reproducing mixed stereoscopic images; Reproducing mixed monoscopic and stereoscopic images, e.g. a stereoscopic image overlay window on a monoscopic image background
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/137Devices 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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139Devices 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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1396Devices 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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/302Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/302Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/31Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/332Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/334Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using spectral multiplexing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/332Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/337Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using polarisation multiplexing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/332Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/341Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/356Image reproducers having separate monoscopic and stereoscopic modes
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20Optical 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
    • G02B30/22Optical 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 of the stereoscopic type
    • G02B30/24Optical 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 of the stereoscopic type involving temporal multiplexing, e.g. using sequentially activated left and right shutters

Definitions

  • the present invention relates to the field of display, and in particular to a display system and a display method. Background technique
  • the existing display technology can be used to display a flat image or video, and can also be used to display a three-dimensional stereoscopic image or video.
  • a liquid crystal television can display a two-dimensional television program transmitted by a television station through a wired or wireless manner, and the theater utilizes 3D.
  • Technology can display 3D movies.
  • each display device can only support one display mode.
  • an LCD TV can only display two-dimensional television programs, but cannot display three-dimensional stereo movies, and can only display three-dimensional images by using 3D technology. Stereo images, but not 2D images. Therefore, when there are multiple display modes, it is necessary to have multiple display devices at the same time, which undoubtedly makes the display cost too high.
  • the technical problem to be solved by the present invention is to provide a display system and a display method, which have both a flat display function and a stereo display function.
  • a display system the system includes a control host, a switching device, a grating panel, and a plane panel; a distance between an inner side of the grating panel and the planar panel is a first spacing The outer side of the grating panel is the side on which the observer is located;
  • the control host is configured to send a switching signal to the switching device, where the switching signal includes: a signal that is switched to a stereoscopic display state of the eye, and a signal that is switched to a fully transparent state;
  • the switching device is configured to: send a square wave signal to the grating panel according to the signal switched to the stereoscopic display state of the eye, and send the eye stereo video signal to the plane panel; switch to a fully transparent state according to the switching Signal that does not send a square wave signal to the grating panel, to the plane
  • the board sends a flat video signal
  • the grating panel is configured to form a slit grating stripe between the light and dark according to the square wave signal; the square wave signal is in a transparent state;
  • the planar panel is configured to cooperate with the slit grating stripe to display stereoscopic video information indicated by the stereoscopic video signal of the eye, so that the observer's eyes generate a stereoscopic video feeling; and the planar video signal is displayed.
  • the indicated flat video information is displayed.
  • the control host can transmit a plurality of switching signals including a signal switched to the stereoscopic display state of the eye and a signal switched to the fully transparent state to the switching device
  • the switching device switches to
  • the signal of the stereoscopic display state of the eye can send a square wave signal to the grating panel, so that the grating panel forms a slit grating stripe between the light and dark according to the square wave signal, and has a first spacing between the inner side of the grating panel and the plane panel.
  • the flat panel cooperates with the slit grating stripe to display the stereoscopic video information indicated by the stereoscopic video signal transmitted by the switching device, so that the observer's eyes outside the grating panel can generate a stereoscopic video feeling.
  • the system performs stereoscopic display; the switching device does not send a square wave signal to the raster panel according to the signal transmitted by the control host to switch to the fully transparent state, so that the raster panel is in a transparent state, and the planar panel displays the planar video signal sent by the switching device.
  • the indicated flat video information will enable the observer The eye observes the flat video information, and at this time, the system performs a flat display. Therefore, the present invention has both a flat display function and a stereo display function.
  • the present invention can also be improved as follows:
  • the grating panel includes a first polarizer, a first transparent substrate, a first transparent electrode, a twisted nematic liquid crystal layer, a second transparent electrode, a second transparent substrate, and a second polarizer;
  • the polarization directions of the first polarizer and the second polarizer are orthogonal to each other;
  • the first transparent electrode and the second transparent electrode cooperate to receive a square wave signal
  • the first transparent electrode is configured to make the liquid crystal in the twisted nematic liquid crystal layer opaque under the high potential of the square wave signal; and to make the liquid crystal in the twisted nematic liquid crystal layer under the low potential of the square wave signal Transparent state.
  • the system further includes time-sharing stereo glasses, and the time-sharing stereo glasses include a left eye lens and a right eye lens;
  • the switching signal further includes a signal that is switched to a time-sharing stereoscopic display state
  • the switching device is configured to: send a time-sharing video signal to the plane panel according to the signal switched to the time-sharing stereoscopic display state, and send a time-sharing video signal to the plane panel, with a positive integer multiple of 120 Hz Frequencyally alternately transmitting a left eye switching signal and a right eye switching signal to the left eye lens and the right eye lens of the time-sharing stereo glasses;
  • the plane panel is configured to display time-sharing video information indicated by the time-sharing video signal; the left-eye lens is transparent under the action of the left-eye switching signal, so that the observer's left eye can pass through The left eyeglass lens observes the time-sharing video information; the left eyeglass lens is in an opaque state without a left eye switching signal, so that the observer's left eye cannot observe the left eyeglass through the left eyeglass lens. Describe time-sharing video information;
  • the right eyeglass is in a transparent state under the action of the right eye switching signal, so that the right eye of the observer can observe the time-sharing video information through the right eyeglass; the right eyeglass is in the right In the case of the eye switching signal, it is in an opaque state, so that the observer's right eye cannot observe the time-sharing video information through the right eyeglass.
  • the system further includes color separation stereo glasses, and the color separation stereo glasses include a color separation left eye lens and a color separation right eye lens;
  • the switching signal further includes a signal switched to a color separation stereoscopic display state
  • the switching device is configured to: send a color separation video signal to the plane panel according to the signal switched to the color separation stereoscopic display state without transmitting a square wave signal to the grating panel;
  • the flat panel is used to display the color separation video information indicated by the color separation video signal;
  • the color separation left eye lens of the color separation stereo glasses is used to enable the observer's left eye to observe the left of the color separation video information through itself Eye information
  • the color separation right lens of the color separation stereo glasses is used to enable the observer's right eye to observe the right eye information in the color separation video information through itself;
  • the left eye information and the right eye information cooperate to make the observer's eyes feel the stereoscopic video.
  • the frequency of the square wave signal is a positive integer multiple of 120 Hz or 60 Hz.
  • the first pitch is any one of 3 awake - 10 mm.
  • the flat panel is a flat liquid crystal panel.
  • the refresh rate of the planar liquid crystal panel is a positive integer multiple of 120 Hz.
  • the present invention also provides a display method, the method comprising:
  • the control host sends a switching signal to the switching device, where the switching signal includes: a signal that is switched to the stereoscopic display state of the eye, and a signal that is switched to the fully transparent state;
  • the switching device determines the type of the switching signal
  • the switching device determines that the switching signal is a signal for switching to the stereoscopic display state of the eye
  • the square wave signal is sent to the grating panel, and the stereoscopic video signal of the eye is sent to the planar panel;
  • the grating panel forms a slit grating between the light and dark according to the square wave signal.
  • Stripe; the flat panel cooperates with the slit grating stripe to display the stereoscopic video information indicated by the stereoscopic video signal of the eye, so that the observer's eyes produce a stereoscopic video feeling;
  • the switching device determines that the switching signal is a signal that is switched to the fully transparent state, the square wave signal is not sent to the raster panel, and the planar video signal is sent to the plane panel; the raster panel is in a transparent state; and the planar panel displays the planar video indicated by the planar video signal. information.
  • the switching signal further includes a signal that is switched to the time-sharing stereoscopic display state; if the switching device determines that the switching signal is a signal that is switched to the time-sharing stereoscopic display state, the square wave signal is not sent to the raster panel.
  • the plane panel transmits a time-sharing video signal, and alternately transmits a left-eye switching signal and a right-eye switching signal to the left and right glasses of the time-division stereo glasses at a frequency of a positive integer multiple of 120 Hz;
  • the plane panel displays time-sharing video information indicated by the time-sharing video signal
  • the left eyeglass is in a transparent state during the action period of the left eye switching signal, so that the observer's left eye can observe the time-sharing video information through the left eyeglass, and at the same time, the right
  • the ophthalmic lens is in an opaque state such that the observer's right eye cannot observe the time-sharing video information through the right ophthalmic lens;
  • the right eyeglass is in a transparent state during the action period of the right eye switching signal, so that the right eye of the observer can observe the time-sharing video information through the right eyeglass, and at the same time, the left
  • the ophthalmic lens is in an opaque state such that the observer's left eye is unable to view the time-sharing video information through the left ophthalmic lens.
  • the switching signal further includes a signal that is switched to the color separation stereoscopic display state; if the switching device determines that the switching signal is a signal that is switched to the color separation stereoscopic display state, the switching device does not send the square wave signal to the raster panel, and sends the color separation video to the planar panel.
  • the flat panel displays the color separation video information indicated by the color separation video signal
  • the color separation left lens of the color separation stereo glasses enables the observer's left eye to observe the left eye information in the color separation video information through itself; the color separation right eye lens of the color separation stereo glasses enables the observer's right eye to pass through The right eye information in the color separation video information is observed by itself; wherein the left eye information and the right eye information cooperate to make the observer's eyes produce a stereoscopic video feeling.
  • the frequency of the square wave signal is a positive integer multiple of 120 Hz or 60 Hz.
  • the first pitch is any one of 3 ⁇ - 10 mm.
  • FIG. 1 is a structural diagram of a display system provided by the present invention.
  • FIG. 2 is a structural view of a preferred embodiment of a grating panel of the present invention.
  • FIG. 3 is a flow chart of a display method provided by the present invention. detailed description
  • FIG. 1 is a structural diagram of a display system provided by the present invention. As shown in FIG. 1, the system includes a control host 101, a switching device 102, a grating panel 103, and a plane panel 104. The distance between the inner side of the grating panel 103 and the plane panel 104 is a first spacing 105, and the outer side of the grating panel 103 is The side on which the observer is located;
  • the control host 101 is configured to send a switching signal to the switching device 102, where the switching signal includes: a signal that switches to a stereoscopic display state of the eye, and a signal that switches to a fully transparent state;
  • the switching device 102 is configured to: send a square wave signal to the raster panel 103 according to the signal switched to the stereoscopic display state of the eye, and send the stereoscopic video signal to the planar panel 104; and not to the raster panel according to the signal switched to the fully transparent state 103 transmitting a square wave signal, and transmitting a planar video signal to the plane panel 104;
  • the grating panel 103 is configured to form a slit grating stripe between the light and dark according to the square wave signal; the square wave signal is in a transparent state;
  • the flat panel 104 is configured to cooperate with the slit grating stripe to display stereoscopic video information indicated by the stereoscopic video signal of the eye, so that the observer's eye 106 generates a stereoscopic video feeling; and display the planar video information indicated by the planar video signal.
  • the control host 101 is a center for performing control, and the control host 101 can transmit various switching signals to the switching device 102 for controlling switching between different display modes of the system.
  • the switching signal is a signal for switching to the stereoscopic display state of the eye, it means that the display system needs to switch from the currently running display mode to the stereoscopic display state of the eye, so that the observer can directly perform stereoscopic video or stereoscopic display with the naked eye. Observation of the image.
  • the switching signal is a signal that switches to the fully transparent state, it means that the display system needs to switch from the currently-displayed display mode to the flat display state, so that the observer can directly perform planar video or planar image with the naked eye. Observed.
  • the control host 101 may determine to send a switching signal after receiving an input of an external or internal control signal, and the control signal may be input to the control host 101 through an external remote controller, a keyboard, or the like, regardless of The manner in which the control signal is input to the control host 101 is within the scope of the present invention as long as the control host 101 can transmit the switching signal.
  • the switching device 102 is a device that receives a switching signal transmitted from the control host 101 and operates in accordance with the switching signal.
  • the switching device 102 transmits a square wave signal to the raster panel 103 and transmits the stereoscopic video signal to the planar panel 104, so that the raster panel 103 can
  • the flat panel 104 can display the stereoscopic video information indicated by the stereoscopic video signal of the eye according to the square wave signal, and the first interval 105 between the inner side of the grating panel 103 and the planar panel 104 is displayed.
  • the principle of the stereoscopic display of the system is the principle of the stereoscopic display of the slit grating, and the stereoscopic display is a stereoscopic display of the eye, and the stereoscopic image can be observed without the observer wearing the dedicated 3D glasses.
  • the switching device 102 is in the switching signal, does not send a square wave signal to the raster panel 103, but only transmits the planar video signal to the plane panel 104, thus, there is no square wave signal.
  • the input raster panel 103 is in a transparent state, and the flat panel 104 displays the planar video information indicated by the planar video signal, which is outside the transparent grating panel 103. The observer's eyes can observe the planar image. At this time, the system is in a flat display state.
  • the stereoscopic video information indicated by the stereoscopic video signal of the eye may be a picture or video of a specified format.
  • the observer can use the eye to stereoscopically feel the image or video at multiple angles.
  • Planar video information is common 2D flat video information, such as 2D pictures, 2D videos, and so on.
  • the switching device 102 can transmit a square wave signal to the raster panel 103 in a wired manner.
  • the wireless mode can also be used.
  • the switching device 102 sends the stereoscopic video signal, the planar video signal and other possible video signals to the flat panel 104, which may be through a dedicated connecting cable, for example, through a common connecting line such as VGA, DVI, HDMI, or the like.
  • the frequency of the square wave signal transmitted by the switching means 102 is a positive integer multiple of 120 Hz or 60 Hz.
  • the first pitch 105 may be any one of 3 legs - 10 mm.
  • the flat panel 104 may be a flat liquid crystal (LCD) panel, and the refresh rate of the flat LCD panel may be a positive integer multiple of 120 Hz.
  • LCD liquid crystal
  • the control host 101 transmits a switching signal to the switching device 102 in various ways.
  • the switching signal may be transmitted to the switching device 102 via the USB interface, or may be through a serial interface, a parallel interface, various wireless interfaces, or the like. To send.
  • the control host 101 can transmit various switching signals including the signal switched to the stereoscopic display state of the eye and the signal switched to the fully transparent state to the switching device 102
  • the switching device 102 switches to
  • the signal of the stereoscopic display state of the eye can send a square wave signal to the grating panel 103, so that the grating panel 103 forms a light-dark slit grating stripe according to the square wave signal, and has a space between the inner side of the grating panel 103 and the plane panel 104.
  • the planar panel 104 cooperates with the slit grating stripe to display the stereoscopic view of the eye transmitted by the switching device 102.
  • the stereoscopic video information indicated by the frequency signal can cause the stereoscopic video to be generated by the observer's eyes outside the grating panel 103.
  • the system performs stereoscopic display; the switching device 102 switches to the control host 101 according to the transmission.
  • the signal in the fully transparent state does not send a square wave signal to the grating panel 103, so that the grating panel 103 is in a transparent state, and the plane panel 104 displays the planar video information indicated by the planar video signal transmitted by the switching device 102, so that the observer can
  • the eye observes the flat video information, and at this time, the system performs a flat display. Therefore, the present invention has both a flat display function and a stereoscopic display function.
  • the structure of the grating panel 103 is within the protection range of the present invention as long as it can satisfy the slit grating stripe formed by the square wave signal and is in a transparent state without the square wave signal.
  • the grating panel includes a first polarizer 25, a first transparent substrate 21, a first transparent electrode 26, a twisted nematic liquid crystal layer 23, a second transparent electrode 28, and a second transparent substrate 29 which are sequentially connected. And a second polarizer 20; wherein
  • the polarization directions of the first polarizer 25 and the second polarizer 20 are orthogonal to each other;
  • the first transparent electrode 26 and the second transparent electrode 28 cooperate to receive a square wave signal
  • a first transparent electrode having a slit grating 26, and corresponding to the twisted portion other than the liquid crystal in the nematic liquid crystal layer 23 and the slit grating slits;
  • the first transparent electrode 26 is configured to make the liquid crystal in the twisted nematic liquid crystal layer 23 in an opaque state under the high potential of the square wave signal; and to twist the nematic liquid crystal layer 23 under the low potential of the square wave signal.
  • the liquid crystal is in a transparent state.
  • the first polarizer 25, the first transparent substrate 21, the first transparent electrode 26, the twisted nematic liquid crystal layer 23, the second transparent electrode 28, the second transparent substrate 29, and the second polarizer 20 in the grating panel The components are connected in sequence, which means that there is a contact surface between adjacent components, and the connection between adjacent components can be printed or attached, or plated or the like. Way and so on.
  • the connection manner of the first polarizer 25 and the first transparent substrate 21 may be an attachment method or a printing method, and the connection manner of the second polarizer 20 and the second transparent substrate 29 may be attached or may be attached.
  • the first transparent electrode 26 is plated on the side of the first transparent substrate 21 near the twisted nematic liquid crystal layer 23, and the second transparent electrode 28 is plated on the second transparent substrate 29 near the twisted nematic liquid crystal layer 23. side.
  • the polarization directions of the first polarizer 25 and the second polarizer 20 are orthogonal to each other, meaning that the first transparent substrate 21, the first transparent electrode 26, and the second transparent layer between the first polarizer 25 and the second polarizer 20 are transparent.
  • the various videos or images displayed on the flat panel can pass through the polarization directions orthogonal to each other due to the optical rotation of the liquid crystal molecules in the twisted nematic liquid crystal layer 23.
  • a polarizer 25 and a second polarizer 20 reach the eyes of an observer located outside the grating panel.
  • the planar video information displayed on the flat panel can pass through the raster panel unimpededly and reach the observer's eyes.
  • the flat panel displays The stereoscopic video information can also pass through the slits in the slit grating strips formed by the grating panel to the eyes of the observer located outside the grating panel.
  • the first transparent electrode 26 and the second transparent electrode 28 cooperate to receive a square wave signal, meaning that the first transparent electrode 26 and the second transparent electrode 28 serve as two receiving ends of the square wave signal transmitted by the switching device, both of which
  • the potential difference between the two is used as a square wave signal received by the grating panel, and the potential difference can act on the liquid crystal in the twisted nematic liquid crystal layer 23 to be in a transparent or opaque state, thereby producing a slit between light and dark. Raster stripes.
  • the first transparent electrode 26 has a slit grating, which means that the first transparent electrode 26 has a plurality of slits thereon, and the slits form a pattern of the slit grating on the first transparent electrode 26, in which the slit is inclined
  • the angle, the spacing of the adjacent slits, the ratio of the slit width to the spacing of the adjacent slits all satisfy the conditions of the stereoscopic display of the eye.
  • a film having a predetermined grating pattern prepared in advance can be used as a mask.
  • the first transparent electrode 26 having a grating pattern conforming to the condition is obtained by an existing photolithography process such as contact exposure.
  • the second transparent electrode 28 can completely cover the second transparent substrate 29.
  • the liquid crystal in the twisted nematic liquid crystal layer 23 corresponds to a portion other than the slit in the slit grating, meaning that it is perpendicular to As seen from the direction of the contact faces, there is no liquid crystal at the position on the twisted nematic liquid crystal layer 23 corresponding to the position of the slit on the first transparent electrode 26, and the portion other than the slit on the first transparent electrode 26 is located. There is a liquid crystal at the position corresponding to the position.
  • the position of the twisted nematic liquid crystal layer 23 corresponding to the position of the slit on the first transparent electrode 26 is completely transparent, and the portion other than the slit on the first transparent electrode 26 is completely transparent.
  • the position corresponding to the position is transparent or not is controlled by the square wave signal received by the first transparent electrode 26 and the second transparent electrode 28, and is opaque when the first transparent electrode 26 is at a high potential, and When the transparent electrode 26 is at a low potential, it is in a transparent state, so that the square wave signal is used to form a light-dark phase slit grating.
  • the principle that the square wave signal controls the transparency of the liquid crystal is that when the first transparent electrode 26 is at a high potential relative to the second transparent electrode 28 under the action of the square wave signal, and the slit other than the slit on the first transparent electrode 26 The partially contacted liquid crystal molecules lose the optical rotation effect due to the action of the electric field, and thus the image light reaching the positions of the liquid crystal molecules will not pass through the first polarizer 25 and the second polarizer 20 whose polarization directions are orthogonal to each other, thus being the first
  • a dark stripe is formed at a position other than the slit on the transparent electrode 26, and since there is no electric field at the slit position of the first transparent electrode 26, and no liquid crystal is affected by the electric field, the transparent state is maintained, and the image light can be transmitted through the first
  • the positions on a polarizer 25 and the second polarizer 20 reach the observer's eyes, so that the position of the slit on the first transparent electrode 26 forms a bright stripe, and thus the light and dark phases
  • an assembly 22 may be further disposed between the first transparent electrode 26 and the twisted nematic liquid crystal layer 23, and the component 24 may be further disposed between the second transparent electrode 28 and the twisted nematic liquid crystal layer 23.
  • Both of the components are transparent materials, and it is ensured that the potential difference between the first transparent electrode 26 and the second transparent electrode 28 can act on the liquid crystal in the twisted nematic liquid crystal layer 23 to satisfy the function of the grating panel described above.
  • packaging may be performed around the twisted nematic liquid crystal layer 23, and the encapsulating material 27 may be a mixed material of an epoxy resin and a polyamide resin.
  • the first transparent counter 21 can be glass! Alternatively, it may be a transparent plastic substrate; the second transparent substrate 29 may be a glass substrate or a transparent plastic substrate.
  • the material of the first transparent electrode 26 may be an indium tin oxide semiconductor (IT0), and the material of the second transparent electrode 28 may also be IT0.
  • the display system provided by the present invention may further include time-sharing stereo glasses including a left eyeglass lens and a right eyeglass lens; the switching signal sent by the control host 101 in FIG. 1 may further include switching to a time-sharing stereoscopic display. State signal; this way,
  • the switching device 102 can be configured to: send a time-sharing signal to the plane panel 104 according to a signal switched to the time-sharing stereoscopic display state, and send a time-sharing video signal to the plane panel 104, alternately at a frequency of a positive integer multiple of 120 Hz.
  • the left eye lens and the right eye lens of the stereo glasses respectively transmit a left eye switching signal and a right eye switching signal;
  • the plane panel 104 is configured to display the time-sharing video information indicated by the time-sharing video signal; the left-eye lens is in a transparent state under the action of the left-eye switching signal, so that the observer's left eye can observe the time-sharing through the left-eye lens Video information; the left lens is opaque without the left eye switching signal, so that the observer's left eye cannot observe the time-sharing video information through the left lens; the right lens is under the right eye switching signal In a transparent state, the observer's right eye can observe time-sharing video information through the right eyeglass; the right eyeglass can be in the absence of right-eye switching signal In an opaque state, the observer's right eye cannot observe the time-sharing video information through the right eyeglass.
  • the switching signal is a signal for switching to the time-sharing stereoscopic display state, which means that the display system needs to switch the display state to the time-sharing stereoscopic display.
  • the observer outside the grating panel 103 needs to wear the time-sharing stereo glasses, and The grating panel 103 needs to be in a transparent state, so that the time-sharing video information displayed on the plane panel 104 can pass through the grating panel 103 unimpeded, and alternately pass through the left and right glasses of the time-sharing stereo glasses, thereby alternately entering.
  • the observer's left and right eyes give the viewer's eyes a stereoscopic video feel.
  • the time-sharing stereo glasses alternately switch the transparent and opaque states of the left and right glasses by high frequency, so that the observer's left and right eyes can alternately pass through the left and right glasses to observe time-sharing video information. , the feeling of stereoscopic video.
  • the switching frequency is a positive integer multiple of 120 Hz, and the frequency is related to the refreshing frequency of the time-sharing stereo glasses.
  • the time-sharing stereo glasses sold on the market generally require that each lens has a refresh frequency of not less than 60 Hz, thus two When the lens is alternately switched in a transparent state, the switching frequency of the entire glasses cannot be lower than 120 Hz.
  • the switching frequency of the time-sharing stereo glasses provided by the present invention may also be a positive integer multiple of 120 Hz such as 240 Hz, 360 Hz, and the like. .
  • the switching device 102 sends the time-sharing video signal to the plane panel 104 by using a common connection line such as VGA, DVI, HDMI, etc., and respectively transmitting a left-eye switching signal and a right eye to the left-eye lens and the right-eye lens of the time-sharing stereo glasses.
  • the manner of switching signals can be wireless, and of course, wired mode can also be used when appropriate.
  • the left eye switching signal and the right eye switching signal are alternately transmitted to the left and right eye glasses of the time-sharing stereo glasses, which means that the left eye switching signal is only sent to the left eye lens, and the right eye switching signal is only Sended to the right eyeglass lens, and when the left eyeglass lens signal acts on the left eyeglass lens, no right eye switching signal acts on the right eyeglass lens, and when the right eye switching signal acts on the right eyeglass lens, no left eye switching signal acts on The left eyeglass lens, which ensures that when the left eyeglass lens is in a transparent state, the right eye The lens is in an opaque state, and when the right lens is in a transparent state, the left lens is in an opaque state.
  • the time-sharing video information indicated by the time-sharing video signal also changes with the transparent and opaque state of the left and right eyeglasses, that is, when the left eyeglass is in a transparent state and the right eyeglass is in an opaque state, the time-sharing video
  • the information is a left-eye picture or video that is suitable for the observer's left B ⁇ through the left lens, and when the right lens is in a transparent state and the left lens is in an opaque state, the time-sharing video information becomes suitable for the observer.
  • the right eye image or video viewed by the right eye through the right eyeglass.
  • the display system provided by the present invention may further comprise color separation stereo glasses, wherein the color separation stereo lens comprises a color separation left lens and a color separation right lens;
  • the switching signal further includes a signal switched to a color separation stereoscopic display state
  • the switching device 102 is configured to send a color separation video signal to the plane panel 104 without transmitting a square wave signal to the raster panel 103 according to the signal switched to the color separation stereoscopic display state;
  • the plane panel 104 is configured to display the color separation video information indicated by the color separation video signal; the color separation left eye lens of the color separation stereo glasses is used to enable the observer's left eye to observe the color separation video information through itself. Left eye information;
  • the color separation right lens of the color separation stereo glasses is used to enable the observer's right eye to observe the right eye information in the color separation video information through itself;
  • the left eye information and the right eye information cooperate to make the observer's eyes feel the stereoscopic video.
  • the switching signal is a signal for switching to the color separation stereoscopic display state, which means that the display system needs to switch the display state to the color separation stereoscopic display.
  • the observer outside the grating panel 103 needs to wear the dichroic stereoscopic glasses, and The grating panel 103 needs to be in a transparent state, so that the color separation video information displayed on the plane panel 104 can pass through the grating panel 103 without hindrance, wherein the left eye information is observed by the observer's left eye through the color separation left lens.
  • the right eye information is observed by the observer's right eye through the color separation right eyeglass, through the mutual matching of the left eye information and the right eye information.
  • the observer's eyes can produce a stereoscopic video.
  • the color separation stereoscopic glasses are obtained by distinguishing the left and right eye information in the color separation video information displayed on the plane panel 104 into the left and right eyes of the observer to achieve stereoscopic video for the observer's eyes.
  • the switching device 102 can send the color separation video signal to the plane panel 104 by using a common connection line such as VGA, DVI, or HDMI.
  • the color separation video information may be an image or a video.
  • the color separation video information is composed of red information, blue information, and green information. Therefore, as a preferred embodiment of the present invention, the left eye information is It can be red information. At this time, the right eye information is green information and blue information. Of course, the left eye information can also be green information and blue information, and the right eye information is red information.
  • the present invention since a plurality of display modes such as stereoscopic display, planar display, color separation stereoscopic display, and time-division stereoscopic display can be realized by a display system by switching the display mode, the present invention can greatly reduce the number of display modes. ⁇ Display cost under various display requirements is also conducive to the popularity of the display system.
  • the flat panel in the prior art can only display the flat video
  • the flat panel in the present invention can perform various display modes such as a flat display, a color separation stereo display, and a time-sharing stereo display, and has both a flat display and a stereo display.
  • the dual function therefore, the present invention can not only make full use of flat panel resources such as LCD, but also improve the cost performance of such products, and can also realize a variety of free stereoscopic display experiences according to different needs of customers.
  • FIG. 3 is a flow chart of a display method provided by the present invention. As shown in FIG. 3, the method includes: Step 301: Setting an outer side of the grating panel to a side where the observer is located; and setting a distance between the inner side of the grating panel and the plane panel as a first spacing.
  • the outer side of the grating panel is disposed on the side where the observer is located, so that the observer directly faces the outer side of the grating panel. If the grating panel is in a transparent state, the observer observes the plane or three-dimensionality displayed by the plane panel. Video, image information, if the raster panel is based on a switching device
  • the transmitted square wave signal forms a light-dark slit grating stripe. Since the distance between the inner side of the grating panel and the flat panel has been set to the first spacing, the observer can observe the stereoscopic video displayed on the flat panel with the eye. information.
  • the first spacing can be any distance from 3 mm to 10 mm.
  • Step 302 The control host sends a switching signal to the switching device, where the switching signal includes: a signal that is switched to the stereoscopic display state of the eye, and a signal that is switched to the fully transparent state.
  • the switching signal sent by the control host to the switching device is used to cause the switching device to make a switching decision according to the switching signal, and send an appropriate signal to the grating panel, the plane panel, the time-sharing stereo glasses, or the color separation stereo glasses, thereby switching to The switching signal indicates the display mode to be reached.
  • the type of the switching signal may include a plurality of types, wherein the signal switched to the stereoscopic display state of the eye is used to switch the display state to the stereoscopic display state of the eye, that is, the observer can observe the stereoscopic video displayed by the planar panel by using the eye. Information, and the feeling of stereoscopic video is generated; the signal switched to the fully transparent state is used to switch the display state to the flat display state, that is, the viewer observes the planar video information displayed by the flat panel using the eye.
  • the display method can have both a flat display function and a stereo display function.
  • the switching signal may also include other types than the two types of signals, such as a signal switched to the time-sharing stereoscopic display state, a signal switched to the color separation stereoscopic display state, etc., respectively, for allowing the observer to observe with the corresponding glasses. Go to the corresponding stereo video information and create a stereo experience.
  • Step 303 The switching device determines the type of the switching signal.
  • step 304 if the switching device determines that the switching signal is a signal for switching to the stereoscopic display state of the eye, step 304 is performed. If the switching device determines that the switching signal is a signal for switching to the fully transparent state, step 305 is performed.
  • Step 304 The switching device sends a square wave signal to the grating panel, and sends a stereoscopic video signal to the plane panel.
  • the grating panel forms a slit grating stripe according to the square wave signal.
  • the plane panel cooperates with the slit grating stripe to display the eye.
  • the stereoscopic video information indicated by the stereoscopic video signal causes the observer's eyes to produce a stereoscopic video.
  • the switching device determines that the switching signal is a signal for switching to the stereoscopic display state of the eye, and therefore, the switching device 4 transmits a square wave signal to the raster panel according to the switching signal, and transmits the stereoscopic image to the planar panel.
  • the video signal so that the observer located outside the grating panel can observe the stereoscopic video information displayed by the flat panel with the eye, and make the observer's eyes feel the stereoscopic video.
  • the square wave signal is such that the grating panel can form a slit grating stripe between light and dark, so that the stereoscopic video information observed by the observer's eye has a stereoscopic video feeling in cooperation with the slit grating stripe.
  • the grating panel can form a light-dark phase slit grating stripe according to the square wave signal.
  • the grating panel has a liquid crystal controlled by the potential of the transparent electrode, and the transparent electrode has a pattern of a slit grating, and the transparent electrode and the liquid crystal On both sides of the combined body, each has a polarizer, and the polarization directions of the two polarizers are orthogonal, so that when the square wave signal is sent to the transparent electrode, the high potential of the square wave signal makes the transparent electrode
  • the liquid crystal that is contacted loses the optical rotation effect under the action of the electric field, and the light reaching the position of these liquid crystal molecules will not pass through the two polarizers whose polarization directions are orthogonal to each other.
  • the transparent electrode Since the transparent electrode has a slit pattern, the observer The position of the grating is viewed in the direction of the grating panel, and dark stripes are formed at positions other than the slit on the transparent electrode, and since there is no electric field at the slit, the light can directly pass through the slit to form bright stripes, thus, the transparent electrode The high potential forms a light-dark slit grating stripe on the grating panel.
  • the transparent electrode is at the zeta potential under the action of the square wave signal, since there is no electric field, the liquid crystal molecules have an optical rotation effect, so that the light can pass through the two polarizers and the transparent electrode and the liquid crystal, directly to the observer's eyes. .
  • the high and low potential of the square wave signal causes the grating panel to form slit grating stripe which periodically appears and disappears.
  • the slit grating stripe can just satisfy the stereoscopic video feeling of the stereoscopic video information observed by the observer's eye.
  • the parameters such as the inclination angle of the slit on the transparent electrode, the pitch of the adjacent slits, and the ratio of the slit width to the adjacent slit pitch are all required to satisfy the condition of the stereoscopic display of the eye.
  • the frequency of the square wave signal can be a positive integer multiple of 120 Hz or 60 Hz.
  • Step 305 The switching device does not send a square wave signal to the raster panel, and sends a planar video signal to the plane panel; the raster panel is in a transparent state; and the flat panel displays the flat video information indicated by the planar video signal.
  • the switching device determines that the switching signal is a signal that is switched to the fully transparent state. Therefore, the switching device does not transmit a square wave signal to the raster panel, so that the raster panel can be in a transparent state, that is, the planar video information displayed by the planar panel. It can directly pass through the grating panel and reach the observer's eyes on the outside of the grating panel, so that the observer can observe the planar video information displayed by the planar panel by using the eye.
  • the switching signal sent by the control host to the switching device further includes a signal for switching to the time-sharing stereoscopic display state
  • step 303 if the switching device determines that the switching signal is a signal for switching to the time-sharing stereoscopic display state, the switching device does not send a square wave signal to the raster panel, but transmits a time-sharing video signal to the plane panel, and is a positive integer multiple of 120 Hz.
  • the frequency alternately transmits a left eye switching signal and a right eye switching signal to the left eye lens and the right eye lens of the time-sharing stereo glasses, respectively;
  • the flat panel displays time-sharing video information indicated by the time-sharing video signal
  • the left lens is in a transparent state, so that the observer's left eye can observe the time-sharing video information through the left lens, and at the same time, the right lens is in an opaque state, thereby making the observer The right eye cannot observe the time-sharing video information through the right eyeglass; during the period of the right eye switching signal, the right eyeglass is in a transparent state, so that the observer's right eye can observe the right eye through the right eyeglass.
  • the left eye lens is in an opaque state, so that the observer's left eye cannot observe the time-sharing video information through the left eye lens.
  • the left ophthalmic lens is in a transparent and opaque state, respectively, and can control whether the observer's left eye can observe the time-sharing video information through the left lens, and the right lens is in a transparent and opaque state, respectively. Control whether the observer’s right eye can observe time sharing through the right eyeglass Video information.
  • the switching device makes a corresponding switching decision, and switches the display state to the time-sharing stereoscopic display state, that is, by switching the observer's left and right eyes alternately at high frequency.
  • the time-sharing video information allows the viewer to observe the time-sharing video information with a three-dimensional sense.
  • the switching signal sent by the control host to the switching device further includes a signal for switching to the color separation stereo display state
  • step 303 if the switching device determines that the switching signal is a signal for switching to the color separation stereoscopic display state, the square wave signal is not transmitted to the raster panel, and the planar panel transmits the color separation video signal;
  • the flat panel displays the color separation video information indicated by the color separation video signal
  • the color separation left lens of the color separation stereo glasses enables the observer's left eye to observe the left eye information in the color separation video information through itself; the color separation right eye lens of the color separation stereo glasses enables the observer's right eye to pass through The right eye information in the color separation video information is observed by itself; wherein the left eye information and the right eye information cooperate to make the observer's eyes produce a stereoscopic video feeling.
  • the left eye information and the right eye information are respectively observed in the left and right eyes of the observer, so that the left eye information and the right eye information cooperate with each other, and the observer The eyes produce a stereoscopic video feel.
  • the left eye information may be red information
  • the right eye information may be green information and blue information; of course, the left eye information may also be green information and blue information, and the right eye information is red information.
  • the present invention has the following advantages:
  • the control host can transmit a plurality of switching signals including a signal switched to the stereoscopic display state of the eye and a signal switched to the fully transparent state to the switching device, the switching device switches to the stereoscopic display according to the eye.
  • the signal of the state can send a square wave signal to the grating panel, so that the grating panel forms a light-dark slit grating stripe according to the square wave signal, and is flat on the inner side of the grating panel.
  • the flat panel When the front panel has a first spacing, the flat panel cooperates with the slit grating stripe to display the stereoscopic video information indicated by the stereoscopic video signal transmitted by the switching device, so that the observer's eyes on the outside of the grating panel can be The stereoscopic video is generated. At this time, the system performs stereoscopic display.
  • the switching device does not send a square wave signal to the raster panel according to the signal transmitted by the control host to switch to the fully transparent state, so that the raster panel is in a transparent state.
  • the flat panel displays the planar video information indicated by the planar video signal sent by the switching device, so that the viewer's eyes can observe the planar video information. At this time, the system performs the planar display. Therefore, the present invention has both a flat display function and a stereoscopic display function.
  • the present invention since a display system can be switched by using a display system to realize a plurality of display modes such as stereoscopic display, planar display, color separation stereoscopic display, and time-division stereoscopic display, the present invention can greatly The display cost under various display requirements is also favorable for the popularity of the display system.
  • the flat panel in the prior art can only display flat video, and the flat panel in the present invention can perform various display modes such as flat display, color separation stereo display and time-sharing stereo display, and has both flat display and stereoscopic display.
  • the dual function of the display therefore, the present invention can not only make full use of the flat panel resources such as LCD, but also improve the cost performance of such products, and can also realize a variety of free stereoscopic display experiences according to different needs of customers.

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Description

一种显示系统和显示方法 技术领域
本发明涉及显示领域, 特别是涉及一种显示系统和显示方法。 背景技术
现有的显示技术, 可以用来显示平面图像或者视频, 也可以用来显示三 维立体图像或者视频, 例如, 液晶电视机可以显示电视台通过有线或者无线 方式传来的二维电视节目, 影院利用 3D技术即可显示三维立体电影。
但是,现有的显示技术中,每套显示设备只能支持一种显示方式,例如, 液晶电视机只能显示二维电视节目, 而无法显示三维立体电影, 而利用 3D 技术也只能显示三维立体图像, 而不能显示二维图像。 因此, 当有多种显示 方式的需求时, 就必须同时具有多种显示设备, 这无疑使得显示成本过高。
发明内容
本发明所要解决的技术问题是提供一种显示系统和显示方法, 兼具平面 显示功能和立体显示功能。
本发明解决上述技术问题的技术方案如下: 一种显示系统, 该系统包括 控制主机、 切换装置、 光栅面板、 平面面板; 所述光栅面板的内侧与所述平 面面板之间的距离为第一间距, 所述光栅面板的外側为观察者所在的一侧; 其中,
所述控制主机用于,向所述切换装置发送切换信号,所述切换信号包括: 切换至棵眼立体显示状态的信号、 切换至全透明状态的信号;
所述切换装置用于, 根据所述切换至棵眼立体显示状态的信号, 向所述 光栅面板发送方波信号, 向所述平面面板发送棵眼立体视频信号; 根据所述 切换至全透明状态的信号, 不向所述光栅面板发送方波信号, 向所述平面面 板发送平面视频信号;
所述光栅面板用于, 根据所述方波信号形成明暗相间的狭缝光栅条纹; 无方波信号则处于透明状态;
所述平面面板用于, 配合所述狭缝光栅条紋, 显示所述棵眼立体视频信 号所指示的立体视频信息, 使所述观察者的眼睛产生立体视频的感觉; 显示 所述平面视频信号所指示的平面视频信息。
本发明的有益效果是: 本发明中, 由于控制主机可向切换装置发送包括 切换至棵眼立体显示状态的信号和切换至全透明状态的信号在内的多种切 换信号,切换装置根据切换至棵眼立体显示状态的信号可向光栅面板发送方 波信号, 使光栅面板根据所述方波信号形成明暗相间的狭缝光栅条纹, 在光 栅面板的内侧与平面面板之间具有第一间距的情况下,平面面板配合狭缝光 栅条紋来显示切换装置发送的棵眼立体视频信号所指示的立体视频信息, 即 可使处于光栅面板外侧的观察者的眼睛产生立体视频的感觉, 此时, 该系统 进行的是立体显示; 切换装置根据控制主机发送的切换至全透明状态的信 号, 不向光栅面板发送方波信号, 这样, 光栅面板处于透明状态, 而平面面 板显示切换装置发送的平面视频信号所指示的平面视频信息, 即可使观察者 的眼睛观察到平面视频信息, 此时, 该系统进行的是平面显示。 因此, 本发 明兼具平面显示功能和立体显示功能。
在上述技术方案的基础上, 本发明还可以做如下改进:
进一步, 光栅面板包括依次相连的第一偏光片、 第一透明基板、 第一透 明电极、 扭曲向列型液晶层、 第二透明电极、 第二透明基板和第二偏光片; 其中,
第一偏光片与第二偏光片的偏振方向相互正交;
第一透明电极和第二透明电极相配合, 接收方波信号;
第一透明电极上具有狭缝光栅,且扭曲向列型液晶层中的液晶与狭缝光 栅中狭缝以外的部分相对应;
第一透明电极用于,在方波信号的高电位作用下使扭曲向列型液晶层中 的液晶处于不透明状态; 在方波信号的低电位作用下使扭曲向列型液晶层中 的液晶处于透明状态。
进一步, 该系统进一步包括分时立体眼镜, 所述分时立体眼镜包括左眼 镜片和右眼镜片;
所述切换信号进一步包括切换至分时立体显示状态的信号;
所述切换装置用于, 根据所述切换至分时立体显示状态的信号, 不向所 述光栅面板发送方波信号, 向所述平面面板发送分时视频信号, 以 120赫兹 的正整数倍的频率交替向所述分时立体眼镜的左眼镜片和右目艮镜片分别发 送左眼切换信号和右眼切换信号;
所述平面面板用于, 显示所述分时视频信号所指示的分时视频信息; 所述左眼镜片在所述左眼切换信号的作用下处于透明状态,使观察者的 左眼能够透过所述左眼镜片观察到所述分时视频信息; 所述左眼镜片在无左 眼切换信号的情况下处于不透明状态,使观察者的左眼不能够透过所述左眼 镜片观察到所述分时视频信息;
所述右眼镜片在所述右眼切换信号的作用下处于透明状态,使观察者的 右眼能够透过所述右眼镜片观察到所述分时视频信息; 所述右眼镜片在无右 眼切换信号的情况下处于处于不透明状态,使观察者的右眼不能够透过所述 右眼镜片观察到所述分时视频信息。
进一步, 该系统进一步包括分色立体眼镜, 分色立体眼镜包括分色左眼 镜片和分色右眼镜片;
切换信号进一步包括切换至分色立体显示状态的信号;
切换装置用于, 根据切换至分色立体显示状态的信号, 不向光栅面板发 送方波信号, 向平面面板发送分色视频信号; 平面面板用于, 显示分色视频信号所指示的分色视频信息; 分色立体眼镜的分色左眼镜片用于,使观察者的左眼能够透过自身观察 到分色视频信息中的左眼信息;
分色立体眼镜的分色右眼镜片用于,使观察者的右眼能够透过自身观察 到分色视频信息中的右眼信息;
其中, 左眼信息和右眼信息相互配合, 使观察者的眼睛产生立体视频的 感觉。
进一步, 方波信号的频率为 120赫兹的正整数倍或 60赫兹。
进一步, 第一间距为 3醒- 10mm中的任一距离。
进一步, 平面面板为平面液晶面板。
进一步, 平面液晶面板的刷新频率为 120赫兹的正整数倍。
另外, 本发明还提出了一种显示方法, 该方法包括:
设置光栅面板的外侧为观察者所在的一侧;设置光栅面板的内侧与平面 面板之间的 巨离为第一间距;
控制主机向切换装置发送切换信号, 切换信号包括: 切换至棵眼立体显 示状态的信号、 切换至全透明状态的信号;
切换装置判断切换信号的种类;
切换装置如果判定切换信号为切换至棵眼立体显示状态的信号, 则向光 栅面板发送方波信号, 并向平面面板发送棵眼立体视频信号; 光栅面板根据 方波信号形成明暗相间的狭缝光栅条纹; 平面面板配合狭缝光栅条纹, 显示 棵眼立体视频信号所指示的立体视频信息,使观察者的眼睛产生立体视频的 感觉;
切换装置如果判定切换信号为切换至全透明状态的信号, 则不向光栅面 板发送方波信号, 向平面面板发送平面视频信号; 光栅面板处于透明状态; 平面面板显示平面视频信号所指示的平面视频信息。 进一步, 切换信号进一步包括切换至分时立体显示状态的信号; 所述切换装置如果判定所述切换信号为切换至分时立体显示状态的信 号,则不向所述光栅面板发送方波信号,向所述平面面板发送分时视频信号, 并以 120赫兹的正整数倍的频率交替向分时立体眼镜的左眼镜片和右眼镜片 分别发送左眼切换信号和右眼切换信号;
所述平面面板显示所述分时视频信号所指示的分时视频信息;
在所述左眼切换信号的作用周期内, 所述左眼镜片处于透明状态, 从而 使观察者的左眼能够透过所述左眼镜片观察到所述分时视频信息, 同时, 所 述右眼镜片处于不透明状态,从而使观察者的右眼不能够透过所述右眼镜片 观察到所述分时视频信息;
在所述右眼切换信号的作用周期内, 所述右眼镜片处于透明状态, 从而 使观察者的右眼能够透过所述右眼镜片观察到所述分时视频信息, 同时, 所 述左眼镜片处于不透明状态,从而使观察者的左眼不能够透过所述左眼镜片 观察到所述分时视频信息。
进一步, 切换信号进一步包括切换至分色立体显示状态的信号; 切换装置如果判定切换信号为切换至分色立体显示状态的信号, 则不向 光栅面板发送方波信号, 向平面面板发送分色视频信号;
平面面板显示分色视频信号所指示的分色视频信息;
分色立体眼镜的分色左眼镜片使观察者的左眼能够透过自身观察到分 色视频信息中的左眼信息; 分色立体眼镜的分色右眼镜片使观察者的右眼能 够透过自身观察到分色视频信息中的右眼信息; 其中, 左眼信息和右眼信息 相互配合, 使观察者的眼睛产生立体视频的感觉。
进一步, 方波信号的频率为 120赫兹的正整数倍或 60赫兹。
进一步, 第一间距为 3瞧- 10mm中的任一距离。 附图说明
图 1为本发明提供的显示系统的结构图;
图 2为本发明中光栅面板一个较佳实施例的结构图;
图 3为本发明提供的显示方法的流程图 。 具体实施方式
以下结合附图对本发明的原理和特征进行描述, 所举实例只用于解释本 发明, 并非用于限定本发明的范围。
图 1为本发明提供的显示系统的结构图。 如图 1所示, 该系统包括控制 主机 101、 切换装置 102、 光栅面板 103、 平面面板 104; 光栅面板 103的内 侧与平面面板 104之间的距离为第一间距 105, 光栅面板 103的外侧为观察 者所在的一侧; 其中,
控制主机 101用于, 向切换装置 102发送切换信号, 切换信号包括: 切 换至棵眼立体显示状态的信号、 切换至全透明状态的信号;
切换装置 102用于, 根据切换至棵眼立体显示状态的信号, 向光栅面板 103发送方波信号, 向平面面板 104发送棵眼立体视频信号; 根据切换至全 透明状态的信号, 不向光栅面板 103发送方波信号, 向平面面板 104发送平 面视频信号;
光栅面板 103用于, 根据方波信号形成明暗相间的狭缝光栅条纹; 无方 波信号则处于透明状态;
平面面板 104用于, 配合狭缝光栅条纹, 显示棵眼立体视频信号所指示 的立体视频信息, 使观察者的眼睛 106产生立体视频的感觉; 显示平面视频 信号所指示的平面视频信息。
这里, 控制主机 101是进行控制的中心, 可由控制主机 101向切换装置 102发送各种切换信号, 用于控制该系统不同显示方式之间的切换。 例如, 如果切换信号为切换至棵眼立体显示状态的信号, 则意味着该显示系统需要 从目前正在运行的显示方式切换至棵眼立体显示状态,这样就可以使观察者 用肉眼直接进行立体视频或立体图像的观察。 同样, 如果切换信号为切换至 全透明状态的信号, 则意味着该显示系统需要从目前正在进行的显示方式切 换至平面显示状态,这样就可以让观察者用肉眼直接进行平面视频或平面图 像的观察。
控制主机 101可以是接收到外部或系统内部的控制信号的输入之后再做 出发送切换信号的决定的, 该控制信号可以为通过外部遥控器、键盘或其他 方式输入到控制主机 101 中的, 无论控制信号采取何种方式输入控制主机 101 , 只要能使控制主机 101发送切换信号, 均在本发明的保护范围之内。
切换装置 102是接收控制主机 101发送的切换信号, 并根据该切换信号 进行动作的装置。
具体来说, 如果切换信号为切换至棵眼立体显示状态的信号, 则切换装 置 102向光栅面板 103发送方波信号,并向平面面板 104发送棵眼立体视频 信号, 这样, 光栅面板 103就可以根据方波信号来形成明暗相间的狭缝光栅 条紋, 平面面板 104就可以显示棵眼立体视频信号所指示的立体视频信息, 由于光栅面板 103的内侧与平面面板 104之间具有第一间距 105的距离, 因 此, 借助于狭缝光栅条纹的作用, 处于光栅面板 103外侧的观察者的眼睛就 可以产生立体视频的感觉,本系统就可以达到进行立体显示的功效了。因此, 该系统进行立体显示的原理为狭缝光栅立体显示原理, 并且该立体显示为棵 眼立体显示, 无需观察者佩戴专用的 3D眼镜即可进行立体影像的观察。 同 样, 如果切换信号为切换至全透明状态的信号, 则切换装置 102 居该切换 信号, 不向光栅面板 103发送方波信号, 而只向平面面板 104发送平面视频 信号,这样,没有方波信号输入的光栅面板 103处于透明状态,平面面板 104 显示平面视频信号所指示的平面视频信息, 处于透明的光栅面板 103外侧的 观察者的眼睛就可以进行平面影像的观察了, 此时, 该系统处于平面显示状 态。
这里,棵眼立体视频信号所指示的立体视频信息可以为一种指定格式的 图片或视频, 在狭缝光栅的配合下, 观察者利用棵眼可多角度立体式地感受 该图片或视频。
平面视频信息为常见的二维平面视频信息, 如 2D图片、 2D视频等。 该系统中,切换装置 102可以釆用有线方式向光栅面板 103发送方波信 号, 当然, 在条件合适的情况下, 也可以釆用无线方式。 切换装置 102向平 面面板 104发送棵眼立体视频信号、平面视频信号以及其他可能的视频信号 的方式, 可以为通过专用的连接线, 例如, 通过 VGA、 DVI、 HDMI等常用的 连接线。
本发明中,切换装置 102所发送的方波信号的频率为 120赫兹的正整数 倍或 60赫兹。
本发明中, 第一间距 105可以为 3腿- 10mm中的任一距离。
本发明中, 平面面板 104可以为平面液晶 (LCD ) 面板, 该平面 LCD面 板的刷新频率可以为 120赫兹的正整数倍。
本发明中,控制主机 101向切换装置 102发送切换信号的方式多种多样, 例如, 可以为通过 USB接口向切换装置 102发送切换信号, 也可以通过串行 接口、 并行接口以及各种无线接口等来发送。
由此可见, 本发明中, 由于控制主机 101可向切换装置 102发送包括切 换至棵眼立体显示状态的信号和切换至全透明状态的信号在内的多种切换 信号, 切换装置 102根据切换至棵眼立体显示状态的信号可向光栅面板 103 发送方波信号,使光栅面板 103根据所述方波信号形成明暗相间的狭缝光栅 条纹,在光栅面板 103的内侧与平面面板 104之间具有第一间距 105的情况 下, 平面面板 104配合狭缝光栅条纹来显示切换装置 102发送的棵眼立体视 频信号所指示的立体视频信息, 即可使处于光栅面板 103外侧的观察者的眼 睛产生立体视频的感觉, 此时, 该系统进行的是立体显示; 切换装置 102根 据控制主机 101发送的切换至全透明状态的信号, 不向光栅面板 103发送方 波信号, 这样, 光栅面板 103处于透明状态, 而平面面板 104显示切换装置 102发送的平面视频信号所指示的平面视频信息, 即可使观察者的眼睛观察 到平面视频信息, 此时, 该系统进行的是平面显示。 因此, 本发明兼具平面 显示功能和立体显示功能。
该系统中, 光栅面板 103的结构只要能够满足根据方波信号形成明暗相 间的狭缝光栅条紋, 而在无方波信号时处于透明状态, 均在本发明的保护范 围之内。
图 2为本发明中光栅面板一个较佳实施例的结构图。 如图 2所示, 该光 栅面板包括依次相连的第一偏光片 25、第一透明基板 21、第一透明电极 26、 扭曲向列型液晶层 23、第二透明电极 28、第二透明基板 29和第二偏光片 20; 其中,
第一偏光片 25与第二偏光片 20的偏振方向相互正交;
第一透明电极 26和第二透明电极 28相配合, 接收方波信号;
第一透明电极 26上具有狭缝光栅,且扭曲向列型液晶层 23中的液晶与 狭缝光栅中狭缝以外的部分相对应;
第一透明电极 26用于, 在方波信号的高电位作用下使扭曲向列型液晶 层 23 中的液晶处于不透明状态; 在方波信号的低电位作用下使扭曲向列型 液晶层 23中的液晶处于透明状态。
这里, 光栅面板中的第一偏光片 25、 第一透明基板 21、 第一透明电极 26、 扭曲向列型液晶层 23、 第二透明电极 28、 第二透明基板 29以及第二偏 光片 20这些组件依次相连, 意味着相邻组件之间具有接触面, 并且相邻组 件之间连接的方式可以为印刷方式, 也可以为贴附方式, 还可以为电镀等镀 的方式等。 例如, 第一偏光片 25与第一透明基板 21的连接方式可以为贴附 方式, 也可以为印刷方式, 第二偏光片 20与第二透明基板 29的连接方式可 以为贴附方式, 也可以为印刷方式; 第一透明电极 26镀在第一透明基板 21 靠近扭曲向列型液晶层 23的一侧, 第二透明电极 28镀在第二透明基板 29 靠近扭曲向列型液晶层 23的一侧。
第一偏光片 25与第二偏光片 20的偏振方向相互正交, 意味着在第一偏 光片 25与第二偏光片 20之间的第一透明基板 21、 第一透明电极 26、 第二 透明电极 28以及第二透明基板 29为透明的情况下, 由于扭曲向列型液晶层 23中的液晶分子的旋光作用,平面面板上显示的各种视频或者图像能够穿过 偏振方向相互正交的第一偏光片 25和第二偏光片 20, 到达位于光栅面板外 侧的观察者的眼睛。 这样, 如果该显示系统进行的是平面显示, 则平面面板 上显示的平面视频信息能够畅通无阻地通过光栅面板, 到达观察者的眼睛, 如果该显示系统进行的是立体显示, 则平面面板上显示的立体视频信息也能 够穿过光栅面板形成的狭缝光栅条紋中的狭缝,到达位于光栅面板外侧的观 察者的眼睛。
第一透明电极 26和第二透明电极 28相配合, 接收方波信号, 意味着第 一透明电极 26和第二透明电极 28作为切换装置所发送的方波信号的两个接 收端, 其二者之间的电位差作为该光栅面板所接收到的方波信号, 该电位差 可作用于扭曲向列型液晶层 23 中的液晶, 使其处于透明或不透明的状态, 进而产生明暗相间的狭缝光栅条纹。
第一透明电极 26上具有狭缝光栅, 意味着第一透明电极 26上具有诸多 狭缝, 这些狭缝使得第一透明电极 26上形成了狭缝光栅的图案, 该图案中, 狭缝的倾斜角度、 相邻狭缝的间距、 狭缝宽度与相邻狭缝间距的比例这些参 数都满足棵眼立体显示的条件。 就第一透明电极 26上的狭缝光栅的具体制 作工艺而言, 可将事先制作好的具有符合条件的光栅图案的胶片作为掩模 板, 利用接触曝光法等现有的光刻工艺制得具有符合条件的光栅图案的第一 透明电极 26。
本发明提供的光栅面板中, 第二透明电极 28 可以完全覆盖第二透明基 板 29。
由于第一透明电极 26、 扭曲向列型液晶层 23是有接触面的, 因此, 扭 曲向列型液晶层 23 中的液晶与狭缝光栅中狭缝以外的部分相对应, 意味着 从垂直于二者接触面的方向来看, 扭曲向列型液晶层 23上与第一透明电极 26上狭缝所在位置相对应的位置处没有液晶, 而与第一透明电极 26上狭缝 以外的部分所在位置相对应的位置处有液晶。 这样, 对整个光栅面板来说, 扭曲向列型液晶层 23上与第一透明电极 26上狭缝所在位置相对应的位置是 完全透明的, 而与第一透明电极 26上狭缝以外的部分所在位置相对应的位 置的透明与否, 则受到第一透明电极 26与第二透明电极 28所接收的方波信 号的控制, 当第一透明电极 26处于高电位时为不透明状态, 而在第一透明 电极 26处于低电位时才为透明状态, 这样也就达到了利用方波信号来形成 明暗相间的狭缝光栅的目的。
方波信号控制液晶的透明与否的原理在于, 当第一透明电极 26在方波 信号的作用下, 处于相对第二透明电极 28的高电位时, 与第一透明电极 26 上狭缝以外的部分相接触的液晶分子由于电场的作用而失去旋光效应, 因而 到达这些液晶分子位置处的影像光线将无法透过偏振方向相互正交的第一 偏光片 25和第二偏光片 20,因而第一透明电极 26上狭缝以外的位置形成了 暗条紋, 而第一透明电极 26上狭缝位置处由于没有电场, 也没有液晶受到 电场的影响, 因而仍保持透明状态, 影像光线可以透过第一偏光片 25和第 二偏光片 20上的这些位置到达观察者的眼睛, 这样, 第一透明电极 26上狭 缝所在的位置就形成了明条紋, 于是, 光栅面板上就形成了明暗相间的狭缝 光栅条纹。 如图 2所示,在第一透明电极 26与扭曲向列型液晶层 23之间还可以具 有组件 22, 第二透明电极 28与扭曲向列型液晶层 23之间还可以具有组件 24 , 这两个组件均为透明物质, 且能保证第一透明电极 26与第二透明电极 28上的电位差能够作用于扭曲向列型液晶层 23中的液晶, 使其满足上述光 栅面板的功能。
如图 2所示, 为防止扭曲向列型液晶层 23中的液晶溢出, 可在扭曲向 列型液晶层 23的四周进行封装,封装材料 27可以为环氧树脂与聚酰胺树脂 的混合材料。
本发明提供的光栅面板中, 第一透明 反 21可以为玻璃! ^反, 也可以 为透明塑料基板; 第二透明基板 29可以为玻璃基板, 也可以为透明塑料基 板。 第一透明电极 26的材料可以为铟锡氧化物半导体(IT0 ) , 第二透明电 极 28的材料也可以为 IT0。
本发明提供的显示系统还可以进一步包括分时立体眼镜,该分时立体眼 镜包括左眼镜片和右眼镜片; 图 1中的控制主机 101所发送的切换信号可以 进一步包括切换至分时立体显示状态的信号; 这样,
切换装置 102可以用于, 根据切换至分时立体显示状态的信号, 不向光 栅面板 103发送方波信号, 向平面面板 104发送分时视频信号, 以 120赫兹 的正整数倍的频率交替向分时立体眼镜的左眼镜片和右眼镜片分别发送左 眼切换信号和右眼切换信号;
平面面板 104用于, 显示分时视频信号所指示的分时视频信息; 左眼镜片在左眼切换信号的作用下处于透明状态,使观察者的左眼能够 透过左眼镜片观察到分时视频信息; 左眼镜片在无左眼切换信号的情况下处 于不透明状态, 使观察者的左眼不能够透过左眼镜片观察到分时视频信息; 右眼镜片在右眼切换信号的作用下处于透明状态,使观察者的右眼能够 透过右眼镜片观察到分时视频信息; 右眼镜片在无右眼切换信号的情况下处 于处于不透明状态,使观察者的右眼不能够透过右眼镜片观察到分时视频信 息。
这里, 切换信号为切换至分时立体显示状态的信号, 意味着该显示系统 需要将显示状态切换至分时立体显示, 此时, 处于光栅面板 103外侧的观察 者需要佩戴分时立体眼镜, 而光栅面板 103需要处于透明状态, 这样就可以 保证平面面板 104上显示的分时视频信息能够无阻碍地穿过光栅面板 103, 交替穿过分时立体眼镜的左眼镜片和右眼镜片,从而交替进入观察者的左眼 和右眼, 使观察者的眼睛产生立体视频的感觉。
分时立体眼镜是通过高频率交替切换左眼镜片与右眼镜片的透明与不 透明状态,使得观察者的左眼和右眼能够分别交替透过左眼镜片和右眼镜片 来观察分时视频信息, 产生立体视频的感觉的。
其中, 切换频率为 120赫兹的正整数倍, 该频率与该分时立体眼镜的刷 新频率有关, 市场上销售的分时立体眼镜通常要求每只镜片的刷新频率不低 于 60赫兹, 因而两只镜片交替切换处于透明状态时, 整只眼镜的切换频率 不能低于 120赫兹, 当然, 本发明提供的分时立体眼镜的切换频率也可以为 240赫兹、 360赫兹等 120赫兹的正整数倍的频率。
切换装置 102向平面面板 104发送分时视频信号的方式可以为通过 VGA、 DVI、 HDMI等常用的连接线, 向分时立体眼镜的左眼镜片和右眼镜片分别发 送左眼切换信号和右眼切换信号的方式可以为无线方式, 当然, 在适当的情 况下也可以采用有线方式。
该系统中, 左眼切换信号和右眼切换信号是交替向分时立体眼镜的左眼 镜片和右眼镜片发送的, 这意味着左眼切换信号只发往左眼镜片, 右眼切换 信号只发往右眼镜片, 且当左眼镜片信号作用于左眼镜片时, 没有右眼切换 信号作用于右眼镜片, 而当右眼切换信号作用于右眼镜片时, 没有左眼切换 信号作用于左眼镜片, 这也就保证了在左眼镜片处于透明状态的时候, 右眼 镜片处于不透明状态, 而当右眼镜片处于透明状态的时候, 左眼镜片处于不 透明状态。
这里, 分时视频信号所指示的分时视频信息也随左眼镜片和右眼镜片的 透明与不透明状态而变化, 即当左眼镜片处于透明状态而右眼镜片处于不透 明状态时, 分时视频信息为适合观察者的左 B艮透过左眼镜片观察的左眼图片 或视频, 而当右眼镜片处于透明状态而左眼镜片处于不透明状态时, 分时视 频信息则变为适合观察者的右眼透过右眼镜片观察的右眼图片或视频。
本发明提供的显示系统还可以进一步包括分色立体眼镜,该分色立体眼 镜包括分色左眼镜片和分色右眼镜片;
切换信号进一步包括切换至分色立体显示状态的信号;
切换装置 102用于, 才艮据切换至分色立体显示状态的信号, 不向光栅面 板 103发送方波信号, 向平面面板 104发送分色视频信号;
平面面板 104用于, 显示分色视频信号所指示的分色视频信息; 分色立体眼镜的分色左眼镜片用于,使观察者的左眼能够透过自身观察 到分色视频信息中的左眼信息;
分色立体眼镜的分色右眼镜片用于,使观察者的右眼能够透过自身观察 到分色视频信息中的右眼信息;
其中, 左眼信息和右目艮信息相互配合, 使观察者的眼睛产生立体视频的 感觉。
这里, 切换信号为切换至分色立体显示状态的信号, 意味着该显示系统 需要将显示状态切换为分色立体显示, 此时, 处于光栅面板 103外侧的观察 者需要佩戴分色立体眼镜, 而光栅面板 103需要处于透明状态, 这样就可以 保证平面面板 104上显示的分色视频信息能够无阻碍地穿过光栅面板 103, 其中的左眼信息被观察者的左眼透过分色左眼镜片观察到, 而右眼信息被观 察者的右眼透过分色右眼镜片观察到, 通过左眼信息和右眼信息的相互配 合, 可使观察者的眼睛产生立体视频的感觉。
分色立体眼镜是通过将平面面板 104上显示的分色视频信息中的左目艮信 息和右眼信息加以区分, 分别进入观察者的左右眼的方式, 来达到使观察者 的眼睛产生立体视频的感觉的。切换装置 102向平面面板 104发送分色视频 信号的方式可以为通过 VGA、 DVI、 HDMI等常用的连接线。
分色视频信息可以为图像, 也可以为视频, 根据三基色理论, 这些分色 视频信息均由红色信息、 蓝色信息和绿色信息构成, 因而作为本发明的较优 实施例, 上述左眼信息可以为红色信息, 此时右眼信息就为绿色信息和蓝色 信息, 当然, 左眼信息也可以为绿色信息和蓝色信息, 此时右眼信息就为红 色信息。
本发明中, 由于可以通过显示方式的切换, 用一套显示系统实现棵眼立 体显示、 平面显示、 分色立体显示和分时立体显示等多种显示方式, 因此, 本发明可以大大降^ ί氐多种显示需求情况下的显示成本,也有利于该显示系统 的普及。
另外, 现有技术中的平面面板只能显示平面视频, 而本发明中的平面面 板可进行平面显示、 分色立体显示和分时立体显示等多种显示方式, 兼具了 平面显示和立体显示的双重功能, 因此, 本发明不仅能够充分利用 LCD等平 面面板资源, 提高此类产品的性价比, 而且还可以根据客户的不同需求, 实 现多种自由立体显示的体验。
图 3为本发明提供的显示方法的流程图。 如图 3所示, 该方法包括: 步骤 301: 设置光栅面板的外侧为观察者所在的一側; 设置光栅面板的 内侧与平面面板之间的距离为第一间距。
这里, 设置光栅面板的外侧为观察者所在的一侧, 使得观察者直接面对 的是光栅面板的外侧, 如果光栅面板处于透明状态, 则观察者观察到的是平 面面板所显示的平面或立体的视频、 图像信息, 如果光栅面板根据切换装置 发送的方波信号形成明暗相间的狭缝光栅条紋, 则由于光栅面板的内侧与平 面面板之间的距离已设置为第一间距,观察者可用棵眼观察到平面面板上所 显示的立体视频信息。 该第一间距可以为 3mm-10mm中的任一距离。
步骤 302: 控制主机向切换装置发送切换信号, 该切换信号包括: 切换 至棵眼立体显示状态的信号、 切换至全透明状态的信号。
这里,控制主机向切换装置发送的切换信号用于使切换装置根据该切换 信号来做出切换决定, 向光栅面板、 平面面板、 分时立体眼镜或分色立体眼 镜发送合适的信号, 从而切换至该切换信号指示要达到的显示方式。
切换信号的种类可以包括很多种, 其中, 切换至棵眼立体显示状态的信 号用于使显示状态切换至棵眼立体显示状态, 即观察者利用棵眼即可观察到 平面面板所显示的立体视频信息, 并产生立体视频的感觉; 切换至全透明状 态的信号用于使显示状态切换至平面显示状态, 即观察者利用棵眼观察到的 是平面面板所显示的平面视频信息。 这样, 通过显示状态间的切换, 该显示 方法即可兼具平面显示功能和立体显示功能。
当然, 切换信号还可以包括这两种信号之外的其他种类, 例如切换至分 时立体显示状态的信号, 切换至分色立体显示状态的信号等, 分别用于使观 察者利用相应的眼镜观察到相应的立体视频信息, 并产生立体的感受。
步骤 303: 切换装置判断切换信号的种类。
这里, 本步骤中, 如果切换装置判定切换信号为切换至棵眼立体显示状 态的信号, 则执行步骤 304, 如果切换装置判定切换信号为切换至全透明状 态的信号, 则执行步骤 305。
步骤 304: 切换装置向光栅面板发送方波信号, 并向平面面板发送棵眼 立体视频信号; 光栅面板根据方波信号形成明暗相间的狭缝光栅条纹; 平面 面板配合狭缝光栅条纹, 显示棵眼立体视频信号所指示的立体视频信息, 使 观察者的眼睛产生立体视频的感觉。 这里, 在步骤 303中, 切换装置判定切换信号为切换至棵眼立体显示状 态的信号, 因此, 切换装置 4艮据该切换信号, 向光栅面板发送方波信号, 并 向平面面板发送棵眼立体视频信号,从而使位于光栅面板外侧的观察者可以 利用棵眼观察到平面面板所显示的立体视频信息, 并使观察者的眼睛产生立 体视频的感觉。
方波信号的作用在于, 使光栅面板能够形成明暗相间的狭缝光栅条紋, 这样, 配合该狭缝光栅条纹, 观察者棵眼所观察到的立体视频信息才具有立 体视频的感觉。
光栅面板根据方波信号形成明暗相间的狭缝光栅条纹的原理可以为: 光 栅面板中具有由透明电极的电位控制的液晶,且该透明电极上具有狭缝光栅 的图案, 并且在透明电极和液晶的结合体的两侧, 各有一块偏光片, 这两块 偏光片的偏振方向为正交的, 这样, 当方波信号发送到透明电极中之后, 方 波信号的高电位就会使得与透明电极所接触的液晶在电场的作用下失去旋 光效应,到达这些液晶分子位置处的光线将无法透过偏振方向相互正交的两 块偏光片, 由于透明电极是有狭缝图案的, 因而从观察者的位置向光栅面板 的方向看去, 透明电极上狭缝以外的位置处形成了暗条纹, 而狭缝处由于没 有电场, 光线可以直接穿过狭缝, 从而形成明条纹, 这样, 透明电极的高电 位就在光栅面板上形成了明暗相间的狭缝光栅条纹。 当透明电极在方波信号 的作用下处于氐电位时,由于没有电场的作用,因而液晶分子具有旋光效应, 这样, 光线就可以穿过两块偏光片及透明电极和液晶, 直达观察者的眼睛。 由此可见, 方波信号的高低电位使得光栅面板形成周期性出现和消失的狭缝 光栅条紋,这种狭缝光栅条纹恰好可以满足使观察者棵眼观察到的立体视频 信息具有立体视频感觉的功效。 这里, 透明电极上的狭缝倾斜角度、 相邻狭 缝的间距、狭缝宽度与相邻狭缝间距的比例这些参数都要满足棵眼立体显示 的条件。 方波信号的频率可以为 120赫兹的正整数倍或 60赫兹。
步骤 305: 切换装置不向光栅面板发送方波信号, 向平面面板发送平面 视频信号; 光栅面板处于透明状态; 平面面板显示平面视频信号所指示的平 面视频信息。
这里, 步骤 303中切换装置判定切换信号为切换至全透明状态的信号, 因此, 切换装置不向光栅面板发送方波信号, 从而可使光栅面板处于透明状 态, 即平面面板所显示的平面视频信息可直接穿过光栅面板, 到达光栅面板 外侧的观察者的眼睛,从而使观察者利用棵眼即可观察到平面面板所显示的 平面视频信息。
该方法中,控制主机向切换装置发送的切换信号进一步包括切换至分时 立体显示状态的信号; 这样,
步骤 303中切换装置如果判定切换信号为切换至分时立体显示状态的信 号, 则切换装置不向光栅面板发送方波信号, 而向平面面板发送分时视频信 号, 并以 120赫兹的正整数倍的频率交替向分时立体眼镜的左目艮镜片和右眼 镜片分别发送左眼切换信号和右眼切换信号;
平面面板显示分时视频信号所指示的分时视频信息;
在左眼切换信号的作用周期内, 左眼镜片处于透明状态, 从而使观察者 的左眼能够透过左眼镜片观察到分时视频信息, 同时, 右眼镜片处于不透明 状态, 从而使观察者的右眼不能够透过右眼镜片观察到分时视频信息; 在右眼切换信号的作用周期内, 右眼镜片处于透明状态, 从而使观察者 的右眼能够透过右眼镜片观察到分时视频信息, 同时, 左眼镜片处于不透明 状态, 从而使观察者的左眼不能够透过左眼镜片观察到分时视频信息。
由此可见, 该方法中, 左眼镜片分别处于透明和不透明状态, 可控制观 察者的左眼是否能够透过左眼镜片观察到分时视频信息,右眼镜片分别处于 透明和不透明状态,可控制观察者的右眼是否能够透过右眼镜片观察到分时 视频信息。
如果切换信号为切换至分时立体显示状态的信号, 则切换装置做出相应 的切换决定, 将显示状态切换至分时立体显示状态, 即通过高频率地交替切 换观察者的左右眼所看到的分时视频信息,使观察者所观察到的分时视频信 息具有立体感。
该方法中,控制主机向切换装置发送的切换信号进一步包括切换至分色 立体显示状态的信号; 这样,
步骤 303中切换装置如果判定切换信号为切换至分色立体显示状态的信 号, 则不向光栅面板发送方波信号, 平面面板发送分色视频信号;
平面面板显示分色视频信号所指示的分色视频信息;
分色立体眼镜的分色左眼镜片使观察者的左眼能够透过自身观察到分 色视频信息中的左眼信息; 分色立体眼镜的分色右眼镜片使观察者的右眼能 够透过自身观察到分色视频信息中的右眼信息; 其中, 左眼信息和右眼信息 相互配合, 使观察者的眼睛产生立体视频的感觉。
由此可见, 该方法中, 通过分色立体眼镜的分色效应, 使得观察者的左 右眼分别观察到左眼信息和右眼信息,从而在左目艮信息和右眼信息相互配合 下, 观察者的眼睛产生立体视频的感觉。
根据三基色理论, 左眼信息可以为红色信息, 右眼信息则为绿色信息和 蓝色信息; 当然, 左眼信息也可以为绿色信息和蓝色信息, 则右眼信息为红 色信息。
由此可见, 本发明具有以下优点:
( 1 )本发明中, 由于控制主机可向切换装置发送包括切换至棵眼立体 显示状态的信号和切换至全透明状态的信号在内的多种切换信号,切换装置 根据切换至棵眼立体显示状态的信号可向光栅面板发送方波信号,使光栅面 板根据所述方波信号形成明暗相间的狭缝光栅条纹,在光栅面板的内侧与平 面面板之间具有第一间距的情况下,平面面板配合狭缝光栅条紋来显示切换 装置发送的棵眼立体视频信号所指示的立体视频信息, 即可使处于光栅面板 外侧的观察者的眼睛产生立体视频的感觉,此时,该系统进行的是立体显示; 切换装置根据控制主机发送的切换至全透明状态的信号, 不向光栅面板发送 方波信号, 这样, 光栅面板处于透明状态, 而平面面板显示切换装置发送的 平面视频信号所指示的平面视频信息, 即可使观察者的眼睛观察到平面视频 信息, 此时, 该系统进行的是平面显示。 因此, 本发明兼具平面显示功能和 立体显示功能。
( 2 )本发明中, 由于可以通过显示方式的切换, 用一套显示系统实现 棵眼立体显示、 平面显示、 分色立体显示和分时立体显示等多种显示方式, 因此, 本发明可以大大降低多种显示需求情况下的显示成本, 也有利于该显 示系统的普及。
( 3 )现有技术中的平面面板只能显示平面视频, 而本发明中的平面面 板可进行平面显示、 分色立体显示和分时立体显示等多种显示方式, 兼具了 平面显示和立体显示的双重功能, 因此, 本发明不仅能够充分利用 LCD等平 面面板资源, 提高此类产品的性价比, 而且还可以根据客户的不同需求, 实 现多种自由立体显示的体验。
以上所述仅为本发明的较佳实施例, 并不用以限制本发明, 凡在本发明 的精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发 明的保护范围之内。

Claims

权利要求
1. 一种显示系统, 其特征在于, 该系统包括控制主机、 切换装置、 光 栅面板、 平面面板; 所述光栅面板的内侧与所述平面面板之间的距离为第一 间距, 所述光栅面板的外侧为观察者所在的一侧; 其中,
所述控制主机用于,向所述切换装置发送切换信号,所述切换信号包括: 切换至棵眼立体显示状态的信号、 切换至全透明状态的信号;
所述切换装置用于, 根据所述切换至棵眼立体显示状态的信号, 向所述 光栅面板发送方波信号, 向所述平面面板发送棵眼立体视频信号; 根据所述 切换至全透明状态的信号, 不向所述光栅面板发送方波信号, 向所述平面面 板发送平面视频信号;
所述光栅面板用于, 根据所述方波信号形成明暗相间的狭缝光栅条紋; 无方波信号则处于透明状态;
所述平面面板用于, 配合所述狭缝光栅条紋, 显示所述棵眼立体视频信 号所指示的立体视频信息, 使所述观察者的眼睛产生立体视频的感觉; 显示 所述平面视频信号所指示的平面视频信息。
2. 才艮据权利要求 1所述的系统, 其特征在于, 所述光栅面板包括依次 相连的第一偏光片、 第一透明基板、 第一透明电极、 扭曲向列型液晶层、 第 二透明电极、 第二透明基板和第二偏光片; 其中,
所述第一偏光片与第二偏光片的偏振方向相互正交;
所述第一透明电极和第二透明电极相配合, 接收所述方波信号; 所述第一透明电极上具有狭缝光栅,且所述扭曲向列型液晶层中的液晶 与所述狭缝光栅中狭缝以外的部分相对应;
所述第一透明电极用于,在所述方波信号的高电位作用下使所述扭曲向 列型液晶层中的液晶处于不透明状态; 在所述方波信号的低电位作用下使所 述扭曲向列型液晶层中的液晶处于透明状态。
3. 根据权利要求 1或 2所述的系统, 其特征在于, 该系统进一步包括 分时立体眼镜, 所述分时立体眼镜包括左目艮镜片和右眼镜片;
所述切换信号进一步包括切换至分时立体显示状态的信号;
所述切换装置用于, 根据所述切换至分时立体显示状态的信号, 不向所 述光栅面板发送方波信号, 向所述平面面板发送分时视频信号, 以 120赫兹 的正整数倍的频率交替向所述分时立体眼镜的左目艮镜片和右眼镜片分别发 送左眼切换信号和右眼切换信号;
所述平面面板用于, 显示所述分时视频信号所指示的分时视频信息; 所述左眼镜片在所述左眼切换信号的作用下处于透明状态,使观察者的 左眼能够透过所述左眼镜片观察到所述分时视频信息; 所述左眼镜片在无左 眼切换信号的情况下处于不透明状态,使观察者的左眼不能够透过所述左眼 镜片观察到所述分时视频信息;
所述右眼镜片在所述右眼切换信号的作用下处于透明状态,使观察者的 右眼能够透过所述右眼镜片观察到所述分时视频信息; 所述右眼镜片在无右 眼切换信号的情况下处于处于不透明状态,使观察者的右眼不能够透过所述 右眼镜片观察到所述分时视频信息。
4. 根据权利要求 1或 2所述的系统, 其特征在于, 该系统进一步包括 分色立体眼镜, 所述分色立体眼镜包括分色左眼镜片和分色右眼镜片; 所述切换信号进一步包括切换至分色立体显示状态的信号;
所述切换装置用于, 才艮据所述切换至分色立体显示状态的信号, 不向所 述光栅面板发送方波信号, 向所述平面面板发送分色视频信号;
所述平面面板用于, 显示所述分色视频信号所指示的分色视频信息; 所述分色立体眼镜的分色左眼镜片用于,使观察者的左眼能够透过自身 观察到所述分色视频信息中的左眼信息;
所述分色立体眼镜的分色右眼镜片用于,使观察者的右眼能够透过自身 观察到所述分色视频信息中的右目艮信息;
其中, 所述左眼信息和右眼信息相互配合, 使所述观察者的眼睛产生立 体视频的感觉。
5. 根据权利要求 1或 2所述的系统, 其特征在于, 所述方波信号的频 率为 120赫兹的正整数倍或 60赫兹。
6. 根据权利要求 1 或 2 所述的系统, 其特征在于, 所述第一间距为 3mm- 10隱中的任一距离。
7. 根据权利要求 1或 2所述的系统, 其特征在于, 所述平面面板为平 面液晶面板。
8. 根据权利要求 7所述的系统, 其特征在于, 所述平面液晶面板的刷 新频率为 120赫兹的正整数倍。
9. 一种显示方法, 其特征在于, 该方法包括:
设置光栅面板的外侧为观察者所在的一侧;设置光栅面板的内侧与平面 面板之间的距离为第一间距;
控制主机向切换装置发送切换信号, 所述切换信号包括: 切换至棵眼立 体显示状态的信号、 切换至全透明状态的信号;
所述切换装置判断所述切换信号的种类;
所述切换装置如果判定所述切换信号为切换至棵眼立体显示状态的信 号, 则向光栅面板发送方波信号, 并向平面面板发送棵眼立体视频信号; 所 述光栅面板根据所述方波信号形成明暗相间的狭缝光栅条紋; 所述平面面板 配合所述狭缝光栅条纹, 显示所述棵眼立体视频信号所指示的立体视频信 息, 使所述观察者的眼睛产生立体视频的感觉;
所述切换装置如果判定所述切换信号为切换至全透明状态的信号, 则不 向所述光栅面板发送方波信号, 向所述平面面板发送平面视频信号; 所述光 栅面板处于透明状态; 所述平面面板显示所述平面视频信号所指示的平面视 频信息。
10.根据权利要求 9所述的方法, 其特征在于, 所述切换信号进一步包 括切换至分时立体显示状态的信号;
所述切换装置如果判定所述切换信号为切换至分时立体显示状态的信 号,则不向所述光栅面板发送方波信号,向所述平面面板发送分时视频信号, 并以 120赫兹的正整数倍的频率交替向分时立体眼镜的左目艮镜片和右眼镜片 分别发送左眼切换信号和右眼切换信号;
所述平面面板显示所述分时视频信号所指示的分时视频信息;
在所述左眼切换信号的作用周期内, 所述左眼镜片处于透明状态, 从而 使观察者的左眼能够透过所述左眼镜片观察到所述分时视频信息, 同时, 所 述右眼镜片处于不透明状态,从而使观察者的右眼不能够透过所述右眼镜片 观察到所述分时视频信息;
在所述右眼切换信号的作用周期内, 所述右眼镜片处于透明状态, 从而 使观察者的右眼能够透过所述右眼镜片观察到所述分时视频信息, 同时, 所 述左眼镜片处于不透明状态,从而使观察者的左眼不能够透过所述左眼镜片 观察到所述分时视频信息。
11.根据权利要求 9所述的方法, 其特征在于, 所述切换信号进一步包 括切换至分色立体显示状态的信号;
所述切换装置如果判定所述切换信号为切换至分色立体显示状态的信 号,则不向所述光栅面板发送方波信号,向所述平面面板发送分色视频信号; 所述平面面板显示所述分色视频信号所指示的分色视频信息;
分色立体眼镜的分色左眼镜片使观察者的左眼能够透过自身观察到所 述分色视频信息中的左眼信息; 分色立体眼镜的分色右眼镜片使观察者的右 眼能够透过自身观察到所述分色视频信息中的右眼信息; 其中, 所述左眼信 息和右眼信息相互配合, 使所述观察者的眼睛产生立体视频的感觉。
12.根据权利要求 9、 10或 11所述的方法, 其特征在于, 所述方波信号 的频率为 120赫兹的正整数倍或 60赫兹。
13.根据权利要求 9、 10或 11所述的方法, 其特征在于, 所述第一间距 为 3讓 -10mm中的任一距离。
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