WO2019080532A1 - Three-dimensional display device and control method thereof - Google Patents

Three-dimensional display device and control method thereof

Info

Publication number
WO2019080532A1
WO2019080532A1 PCT/CN2018/093340 CN2018093340W WO2019080532A1 WO 2019080532 A1 WO2019080532 A1 WO 2019080532A1 CN 2018093340 W CN2018093340 W CN 2018093340W WO 2019080532 A1 WO2019080532 A1 WO 2019080532A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode layer
liquid crystal
polarization state
image information
electrode
Prior art date
Application number
PCT/CN2018/093340
Other languages
French (fr)
Chinese (zh)
Inventor
向贤明
张涛
蒲天发
Original Assignee
宁波视睿迪光电有限公司
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
Priority to CN201711010884.9 priority Critical
Priority to CN201711010884.9A priority patent/CN107728363A/en
Application filed by 宁波视睿迪光电有限公司 filed Critical 宁波视睿迪光电有限公司
Publication of WO2019080532A1 publication Critical patent/WO2019080532A1/en

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/286Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
    • 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
    • G02B30/26Optical 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 autostereoscopic type
    • G02B30/27Optical 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 autostereoscopic type involving lenticular arrays
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1343Electrodes
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1347Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells

Abstract

Embodiments of the present invention provide a stereoscopic display device and a control method thereof, and relate to the technical field of display. The stereoscopic display device includes: a first polarization state adjustment unit, including a first substrate, a first electrode layer, a first liquid crystal layer, a second electrode layer, and a second substrate that are sequentially stacked; and is disposed in the first polarization state adjustment unit a second polarization state adjusting unit, comprising: a third substrate, a third electrode layer, a second liquid crystal layer, a fourth electrode layer, and a fourth substrate which are sequentially stacked; and the second polarization state adjusting unit is disposed away from the first polarization state a 2D display unit on one side of the adjustment unit; and a liquid crystal lens unit disposed on a side of the first polarization state adjustment unit away from the second polarization state adjustment unit. The odd-numbered sub-pixel columns and the even-numbered sub-pixel columns of the 2D display unit are alternately displayed with information corresponding to the left eye and information corresponding to the right eye at intervals of a frame, so that when the stereoscopic display device performs 3D display, the resolution is not lost.

Description

Stereoscopic display device and control method thereof Technical field

The present invention relates to the field of display technologies, and in particular to a stereoscopic display device and a control method thereof.

Background technique

The realistic three-dimensional world provides two images with a poor positioning for the eyes of the human. When two images with a poor positioning are reflected into the eyes, the parallax required for stereoscopic vision, the fusion reflection of the optic nerve center and the vision are formed. The psychological reaction produces a three-dimensional feeling. With this principle, a 3D feeling can be obtained by presenting two left and right images having a difference to the left and right eyes by the display device. The naked-eye 3D stereoscopic display device simultaneously provides images with different parallaxes to the left and right eyes at the same time by using spatial division, that is, a part of the sub-pixel columns of the 2D screen always corresponds to one eye, and other sub-pixel columns of the 2D screen always correspond to each other. The other eye, whether for the left eye or the right eye, the image information viewed is smaller than the physical resolution of the 2D screen itself, making the stereoscopic display image less clear and the image quality affected.

technical problem

The partial sub-pixel column of the 2D screen always corresponds to one eye, and the other sub-pixel columns of the 2D screen always correspond to the other eye, and the image information viewed is smaller than the 2D screen itself for the left eye or the right eye. The physical resolution makes the stereoscopic display picture not clear enough and the picture quality is affected.

Technical solution

In view of this, the present invention provides a stereoscopic display device and a control method thereof to improve the above problems.

To achieve the above object, the present invention provides the following technical solutions:

In one aspect, an embodiment of the present invention provides a stereoscopic display device, including: a first polarization state adjustment unit, including a first substrate, a first electrode layer, a first liquid crystal layer, and a second layer which are sequentially stacked. And an electrode layer and a second substrate; a second polarization state adjustment unit disposed on a side of the first polarization state adjustment unit, wherein the second polarization state adjustment unit includes a third substrate, a third electrode layer, and a layer a liquid crystal layer, a fourth electrode layer, and a fourth substrate; a 2D display unit disposed on a side of the second polarization state adjusting unit away from the first polarization state adjusting unit; and a first polarization state adjustment The unit is away from the liquid crystal lens unit of one side of the second polarization state adjustment unit; when the current frame is in the 3D display state, the odd sub-pixel columns of the 2D display screen display image information corresponding to the left eye, the 2D The even sub-pixel column of the display screen displays image information corresponding to the right eye, and the second polarization state adjusting unit is in a first preset working state, the first polarization The state adjustment unit is in a second preset working state, so that the image information corresponding to the left eye enters the left eye of the user, and the image information corresponding to the right eye enters the right eye of the user; in the state of being in the 3D display state In the next frame of the current frame, the odd sub-pixel columns of the 2D display screen display image information corresponding to the right eye, and the even sub-pixel columns of the 2D display screen display image information corresponding to the left eye, the first polarization state The adjusting unit is in a second preset working state, and the second polarization state adjusting unit is in a second preset working state, so that the image information corresponding to the left eye enters the left eye of the user, and the image information corresponding to the right eye Enter the user's right eye.

In an optional embodiment, in the above stereoscopic display device, the first electrode layer includes a first electrode layer electrode, the second electrode layer includes a second electrode layer electrode, and the first electrode layer electrode And the second electrode layer electrode is a planar electrode.

In an optional embodiment, in the above stereoscopic display device, an angle between an orientation direction of the first electrode layer electrode and an orientation direction of the second electrode layer is a first predetermined angle.

In an optional embodiment, in the above stereoscopic display device, the third electrode layer includes a third electrode layer electrode, and the fourth electrode layer includes a fourth electrode layer electrode, and the third electrode layer electrode And the fourth electrode layer electrode is a planar electrode.

In an optional embodiment, in the above stereoscopic display device, an angle between an orientation direction of the third electrode layer electrode and an orientation direction of the fourth electrode layer is a second predetermined angle.

In an optional embodiment, in the above stereoscopic display device, the liquid crystal lens unit includes a film substrate, a lens microstructure, and a liquid crystal coating layer, and the lens microstructure is disposed on one side of the film substrate. The liquid crystal coating layer is disposed on a side of the lens microstructure away from the film substrate.

In an optional embodiment, in the above stereoscopic display device, the liquid crystal coating layer includes a plurality of sub-liquid crystal coating layers of a predetermined structure, the predetermined structure has a predetermined shape, and the liquid crystal coating layer is adjacent to The first polarization state adjusting unit, the sub liquid crystal coating of the predetermined structure, the film substrate facing the sub liquid crystal coating of the predetermined structure, and the sub liquid crystal coating of the predetermined structure are directly opposite The lens microstructures constitute lens units, each of which faces a column of two adjacent sub-pixels of the 2D display unit.

In an optional embodiment, in the above stereoscopic display device, the refractive index of the lens microstructure is a first refractive index, and the first refractive index is between an ordinary refractive index and an extraordinary refractive index; When the current frame is, one or more electrodes of the first electrode layer and one or more electrodes of the second electrode layer have a voltage difference, and one or more electrodes of the third electrode layer and the first There is no voltage difference between one or more electrodes of the four electrode layer, and the refractive index of the liquid crystal coating corresponding to the light incident on the liquid crystal coating through the polarization state adjusting unit is an ordinary light refractive index so that the left eye corresponds to The image information enters the left eye of the user, and the image information corresponding to the right eye enters the right eye of the user; when the next frame of the current frame is, the one or more electrodes of the first electrode layer and the second electrode There is a voltage difference between one or more electrodes of the layer, one or more electrodes of the third electrode layer and one or more electrodes of the fourth electrode layer have a voltage difference, and the liquid crystal coating correspondingly passes through the first partial Adjusting the refractive index of the state of the light incident on the liquid crystal cell of a non-coated ordinary light refractive index, so that the image information corresponding to the left eye enters the left eye of the user, the image information corresponding to the right eye enters the right eye of the user.

In an optional embodiment, in the above stereoscopic display device, the refractive index of the lens microstructure is a first refractive index, and the first refractive index is between an ordinary refractive index and an extraordinary refractive index; When there is no voltage difference between one or more electrodes of the first electrode layer and one or more electrodes of the second electrode layer, one or more electrodes of the third electrode layer and the fourth There is no voltage difference between one or more electrodes of the electrode layer, and the refractive index of the liquid crystal coating corresponding to light incident on the liquid crystal coating through the first polarization state adjusting unit is the same as the first refractive index The image information displayed by the 2D display unit is simultaneously entered into the left eye and the right eye of the user to realize a 2D display state.

In another aspect, the embodiment of the present invention further provides a control method, which is applied to the above stereoscopic display device, and the method includes: controlling an odd sub-pixel of the 2D display screen when the current frame is in a 3D display state. The column displays the image information corresponding to the left eye, the even sub-pixel column of the 2D display screen displays the image information corresponding to the right eye, the second polarization state adjusting unit is the first preset working state, and the first polarization state adjustment The unit is in a second preset working state, so that the image information corresponding to the left eye enters the left eye of the user, and the image information corresponding to the right eye enters the right eye of the user; the current frame in the state of being in the 3D display state In the next frame, the odd sub-pixel columns of the 2D display screen are displayed to display image information corresponding to the right eye, and the even sub-pixel columns of the 2D display screen display image information corresponding to the left eye, the first polarization state adjustment The unit is in a second preset working state, and the second polarization state adjusting unit is in a second preset working state, so that image information corresponding to the left eye enters a left eye of the user, where the right eye corresponds to The image information into the user's right eye.

Beneficial effect

A stereoscopic display device and a control method thereof according to an embodiment of the present invention, the stereoscopic display device includes a liquid crystal lens unit, a first polarization state adjustment unit, a second polarization state adjustment unit, and a 2D display unit, and the first polarization state adjustment unit includes a plurality of layers. a first substrate, a first electrode layer, a first liquid crystal layer, a second electrode layer, and a second substrate, wherein the second polarization state adjusting unit includes a third substrate, a third electrode layer, and a second liquid crystal layer, which are sequentially stacked. The fourth electrode layer and the fourth substrate, in the current frame, the odd sub-pixel columns of the 2D display screen display the image information corresponding to the left eye, the even sub-pixel columns of the 2D display screen display the image information corresponding to the right eye, and the second polarization state The adjustment unit is in a first preset working state, and the first polarization state adjustment unit is in a second preset working state, so that the image information corresponding to the left eye enters the left eye of the user, and the image information corresponding to the right eye enters the right eye of the user. In the next frame of the current frame, the odd sub-pixel columns of the 2D display screen display the image information corresponding to the right eye, and the even sub-image of the 2D display screen The display unit displays image information corresponding to the left eye, the first polarization state adjustment unit is in a second preset working state, and the second polarization state adjustment unit is in a second preset working state, so that image information corresponding to the left eye enters the left side of the user. The eye, the image information corresponding to the right eye enters the user's right eye. The left eye information displayed in the odd sub-pixel column of the 2D display unit in the current frame can be entered into the left eye of the user in the 2D display state, and the right eye information displayed in the even sub-pixel column can enter the right eye of the user, and the next frame The right eye information displayed by the odd sub-pixel column of the 2D display unit can enter the right eye of the user, and the left eye information of the even sub-pixel column of the 2D display unit can enter the left eye of the user, thereby achieving the 3D display effect. The odd sub-pixel column and the even sub-pixel column of the 2D display unit are alternately displayed with information corresponding to the left eye and information corresponding to the right eye at a time interval of the frame, so that the stereoscopic display device performs 3D display without loss of resolution. The problem of using the spatial segmentation method in the prior art to simultaneously provide images with different parallaxes to the left and right eyes at the same time causes the problem of loss of resolution.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

FIG. 1 is a schematic structural diagram of a stereoscopic display device according to an embodiment of the present invention;

2 is a schematic timing diagram showing states of a 2D display unit, a first polarization state adjustment unit, and a second polarization state adjustment unit according to an embodiment of the present invention;

FIG. 3 is a schematic diagram showing a display principle of a stereoscopic display device according to an embodiment of the present invention; FIG.

FIG. 4 is a schematic diagram showing another display principle of a stereoscopic display device according to an embodiment of the present invention;

FIG. 5 is a schematic diagram showing still another display principle of the stereoscopic display device provided by the embodiment of the present invention.

Icon: 100-stereoscopic display device; 110-first polarization state adjustment unit; 111-first substrate; 112-first electrode layer; 113-first liquid crystal layer; 114-second electrode layer; 115-second substrate; 120-second polarization state adjusting unit; 121-third substrate; 122-third electrode layer; 123-second liquid crystal layer; 124-fourth electrode layer; 125-fourth substrate; 130-2D display unit; Liquid crystal lens unit; 141-film substrate; 142-lens microstructure; 143-liquid crystal coating.

BEST MODE FOR CARRYING OUT THE INVENTION

The first embodiment of the present invention provides a stereoscopic display device 100. Referring to FIG. 1 , the stereoscopic display device 100 includes a first polarization state adjustment unit 110 including a first substrate 111 and a first electrode layer 112 which are sequentially stacked. a first liquid crystal layer 113, a second electrode layer 114, and a second substrate 115; a second polarization state adjustment unit 120 disposed on one side of the first polarization state adjustment unit 110, and the second polarization state adjustment unit 120 includes a plurality of layers arranged in sequence a third substrate 121, a third electrode layer 122, a second liquid crystal layer 123, a fourth electrode layer 124, and a fourth substrate 125; 2D disposed on a side of the second polarization state adjustment unit 120 away from the first polarization state adjustment unit 110 The display unit 130; and the liquid crystal lens unit 141 disposed on a side of the first polarization state adjustment unit 110 away from the second polarization state adjustment unit 120.

Further, when the current frame is in the 3D display state, the odd sub-pixel columns of the 2D display screen display the image information corresponding to the left eye, and the even sub-pixel columns of the 2D display screen display the image information corresponding to the right eye, and the second polarization state The adjustment unit 120 is in a first preset working state, and the first polarization state adjustment unit 110 is in a second preset working state, so that the image information corresponding to the left eye enters the left eye of the user, and the image information corresponding to the right eye enters the right of the user. Eye; in the next frame of the current frame in the 3D display state, the odd sub-pixel columns of the 2D display screen display the image information corresponding to the right eye, and the even sub-pixel columns of the 2D display screen display the image information corresponding to the left eye The first polarization state adjustment unit 110 is in a second preset operation state, and the second polarization state adjustment unit 120 is in a second preset operation state, so that the image information corresponding to the left eye enters the left eye of the user, and the image corresponding to the right eye. The information enters the user's right eye.

In the embodiment of the present invention, the first electrode layer 112 may include one or more first electrode layer electrodes; the second electrode layer 114 may include one or more second electrode layer electrodes; and the third electrode layer 122 may include one or A plurality of third electrode layer electrodes; the fourth electrode layer 124 may include one or more fourth electrode layer electrodes.

As an embodiment, the first electrode layer 112 may include a first electrode layer electrode; the second electrode layer 114 may include a second electrode layer electrode; the third electrode layer 122 includes a third electrode layer electrode; and the fourth electrode Layer 124 includes a fourth electrode layer electrode.

Specifically, the first electrode layer electrode, the second electrode layer electrode, the third electrode layer electrode, and the fourth electrode layer electrode may be planar electrodes. Thereby, the electrodes in each electrode layer can be made to correspond to the substrate.

As another embodiment, the first electrode layer 112 may include a plurality of first electrode layer electrodes; the second electrode layer 114 may include a plurality of second electrode layer electrodes; and the third electrode layer 122 includes a plurality of third electrode layer electrodes The fourth electrode layer 124 includes a plurality of fourth electrode layer electrodes.

Specifically, the first electrode layer electrode, the second electrode layer electrode, the third electrode layer electrode, and the fourth electrode layer electrode may also be strip electrodes. The strip electrodes in each electrode layer may be adjacent to each other in order, and the arrangement direction is uniform, so that the plurality of strip electrodes are seamlessly connected as a whole, and the whole corresponds to the substrate.

In the embodiment of the present invention, the first liquid crystal layer 113 and the second liquid crystal layer 123 may be twisted nematic liquid crystals, that is, ordinary TN type liquid crystals. The first substrate 111, the second substrate 115, the third substrate 121, and the fourth substrate 125 may be glass substrates.

In addition, in the embodiment of the present invention, an angle between an orientation direction of the first electrode layer electrode and an orientation direction of the second electrode layer 114 is a first predetermined angle. The angle between the orientation direction of the third electrode layer electrode and the orientation direction of the second electrode layer 114 is a second predetermined angle.

Specifically, a first alignment layer may be disposed between the first electrode layer electrode and the first liquid crystal layer 113, and a second alignment layer and a third electrode layer electrode may be disposed between the second electrode layer electrode and the first liquid crystal layer 113. A third alignment layer may be disposed between the second liquid crystal layer 123 and the second liquid crystal layer 123, and a fourth alignment layer may be disposed between the fourth electrode layer electrode and the second liquid crystal layer 123. Thereby, the orientations of the first electrode layer electrode, the second electrode layer electrode, the third electrode layer electrode, and the fourth electrode layer electrode can be achieved.

In an embodiment of the invention, the first alignment layer, the second alignment layer, the third alignment layer, and the fourth alignment layer may be polyimide polyimide materials.

In the embodiment of the present invention, referring to FIG. 1, the liquid crystal lens unit 141 includes a film substrate 141, a lens microstructure 142, and a liquid crystal coating layer 143. The liquid crystal coating layer 143 is adjacent to the first polarization state adjusting unit 110, the lens microstructure 142 is disposed on one side of the film substrate 141, and the liquid crystal coating layer 143 is disposed on a side of the lens microstructure 142 away from the film substrate 141. The specific material of the film substrate 141 may be a PET material.

Further, the liquid crystal coating layer 143 includes a plurality of sub-liquid crystal coating layers 143 of a predetermined structure, the cross section of the predetermined structure is a preset shape, the film substrate 141 facing the sub liquid crystal coating layer 143 of the predetermined structure and the preset structure The lens microstructures 142 facing the sub-liquid crystal coating 143 form lens units, each lens unit facing the two adjacent sub-pixel columns of the 2D display unit 130.

In the embodiment of the present invention, the specific preset shape may be a curved surface shape, an isosceles triangular shape, or a bilaterally symmetric convex surface shape composed of a plurality of segments. The shape of the side of the mirror microstructure close to the liquid crystal coating layer 143 should correspond to the shape of the liquid crystal coating layer 143, that is, the side of the lens microstructure 142 close to the liquid crystal coating layer 143 is a curved surface, and the lens microstructure 142 is away from the liquid crystal coating layer 143. The side, that is, the side close to the film substrate 141 is a flat surface. Additionally, the side of the liquid crystal coating 143 that is remote from the lens microstructure 142 may be planar. It will be appreciated that the side of the liquid crystal coating 143 that is in contact with the lens microstructure 142 has a complementary structure and has a flat surface on the side remote from the lens microstructure 142. In addition, the liquid crystals in the liquid crystal coating layer 143 are aligned and the long axes of the molecules are aligned in a specified direction.

In the embodiment of the present invention, the 2D display unit 130 may be a TFT_LCD liquid crystal display. The 2D display unit 130 includes a matrix of red, green, and blue sub-pixels for providing display information to the stereoscopic display device 100. Of course, the specific type of the 2D display unit 130 is not limited in the embodiment of the present invention.

In the embodiment of the present invention, the 2D display unit 130 and the second polarization state adjustment unit 120 can both operate at high frequencies. For example, it operates at 120 Hz, or 120 frames per second. The 2D display unit 130 may alternately display the image information corresponding to the left eye and the image information corresponding to the right eye on the corresponding sub-pixels in a preset time period. Specifically, the preset time may correspond to 120 Hz, that is, 1/120 second, and simultaneously switch the working state of the second polarization state adjusting unit 120, and combine the optical function of the first polarization state adjusting unit 110 to the left eye information and the right. The eye information is transmitted to the observer's left and right eyes, respectively.

For example, referring to FIG. 2, I represents a first preset working state, and II represents a second preset working state, which may be in every second, in the odd frame, ie, 1, 3, 5, ..., 117, 119. In the frame, the odd sub-pixel columns of the 2D display unit 130 can display the information corresponding to the left eye, and the even sub-pixel columns of the 2D display unit 130 can display the information corresponding to the right eye, that is, the information displayed by the sub-pixel column is the LRLR in FIG. 2... And the second polarization state adjustment unit 120 is in a first preset working state, the first working state is a state of rotating the second predetermined angle, and the first polarization state adjusting unit 110 is in a second preset working state, That is, the state of no rotation, at this time, the information corresponding to the left eye can be refracted by the liquid crystal lens unit 141 and transmitted to the left eye of the observer, and the information corresponding to the right eye can be refracted by the liquid crystal lens unit 141 and transmitted to the right eye of the observer. .

Referring to FIG. 2, in the case of the even frames, that is, 2, 4, 6, ..., 118, 120 frames, the odd sub-pixel columns of the 2D display unit 130 display the information corresponding to the right eye, and the even sub-pixel columns of the 2D display unit 130. The information corresponding to the left eye is displayed, that is, the information displayed by the sub-pixel column is the arrangement of RLRL... in FIG. 2, and the second polarization state adjustment unit 120 is in the second preset working state, that is, the state of no rotation, the first polarization state. The adjusting unit 110 is in a second preset working state, that is, a state in which no light is rotated. At this time, the information corresponding to the left eye can be refracted by the liquid crystal lens unit 141 and transmitted to the left eye of the observer, and the information corresponding to the right eye can pass through the liquid crystal lens. Unit 141 is refracted and delivered to the observer's right eye. Thereby, a stereoscopic display state can be achieved.

In the embodiment of the present invention, the refractive index of the lens microstructure 142 is a first refractive index, and the first refractive index may be between the ordinary light refractive index and the extraordinary light refractive index, for example, may be.

In the current frame, the first polarization state adjustment unit 110 is in a power-on state, such that one electrode or a plurality of electrodes of the first electrode layer 112 and one or more electrodes of the second electrode layer 114 have a voltage difference; the second polarization The state adjustment unit 120 is in an unpowered state, and there is no voltage difference between one or more electrodes of the third electrode layer 122 and one or more electrodes of the fourth electrode layer 124. At this time, the first polarization state adjusting unit 110 may be in the first preset working state, that is, the liquid crystal molecules of the first liquid crystal layer 113 lose the optical rotation characteristics, so that the polarization characteristics of the linearly polarized light incident to the first polarization state adjusting unit 110 are made. Without change, the second polarization state adjusting unit 120 is in the second operational state, that is, the liquid crystal molecules of the second liquid crystal layer 123 are naturally twisted by 90 degrees, and the polarization angle of the incident linearly polarized light is changed by 90 degrees. Therefore, the linearly polarized light emitted from the 2D display unit 130 is changed by 90 degrees after passing through the second polarization state adjusting unit 120, and when the first polarization state adjusting unit 110 passes, the polarization characteristic is not changed, and is further incident on the liquid crystal lens unit 141. In the liquid crystal coating layer 143, since the polarization direction of the incident light is perpendicular to the long-axis direction of the liquid crystal molecules in the liquid crystal coating layer 143, the refractive index of the liquid crystal coating layer 143 is an ordinary refractive index.

As shown in FIG. 3, since the refractive index of the lens microstructure 142 is greater than the ordinary light refractive index, when the light from the liquid crystal coating layer 143 enters the lens microstructure 142, it corresponds to the incident light entering the optically dense medium from the light-diffusing medium, according to the refraction. The law shows that the incident light is close to the normal. Therefore, the information corresponding to the left eye of the odd sub-pixel column display of the 2D display unit 130 can be refracted by the liquid crystal lens unit 141 and transmitted to the left eye of the observer, and the right eye corresponding to the even sub-pixel column of the 2D display unit 130 is displayed. The information can be refracted by the liquid crystal lens unit 141 and transmitted to the observer's right eye so that the observer can see the correct image information.

At the next frame of the current frame, the first polarization state adjustment unit 110 is still in the power-on state, and one or more electrodes of the first electrode layer 112 and one or more electrodes of the second electrode layer 114 are There is a voltage difference therebetween; the second polarization state adjustment unit 120 adjusts to a state of power supply such that there is no voltage difference between one or more electrodes of the third electrode layer 122 and one or more electrodes of the fourth electrode layer 124. At this time, the first polarization state adjusting unit 110 and the second polarization state adjusting unit 120 may be in the second preset working state, that is, the liquid crystal molecules of the first liquid crystal layer 113 and the second liquid crystal layer 123 lose the optical rotation characteristics, so that the incident state is The polarization characteristic of the linearly polarized light of the first polarization state adjustment unit 110 does not change, and the polarization characteristic of the linearly polarized light incident to the second polarization state adjustment unit 120 does not change. Therefore, after the linearly polarized light emitted from the 2D display unit 130 passes through the second polarization state adjusting unit 120, the polarization characteristic does not change. When the first polarization state adjusting unit 110 passes through, the polarization characteristic does not change, and is further incident on the liquid crystal lens unit 141. In the liquid crystal coating layer 143, since the polarization direction of the incident light is parallel to the long-axis direction of the liquid crystal molecules in the liquid crystal coating layer 143, the refractive index of the liquid crystal coating layer 143 is an extraordinary refractive index.

As shown in FIG. 4, since the refractive index of the lens microstructure 142 is smaller than the extraordinary refractive index of light, when the light from the liquid crystal coating layer 143 enters the lens microstructure 142, it corresponds to incident light entering the light-diffusing medium from the optically dense medium, according to According to the law of refraction, the incident light deviates from the normal line, and the odd-numbered sub-pixel column and the even-numbered sub-pixel column of the 2D display unit 130 exchange the left and right eye information in the next frame of the current frame, and the right eye of the odd-numbered sub-pixel column of the 2D display unit 130 displays The corresponding information may be refracted by the liquid crystal lens unit 141 and transmitted to the right eye of the observer. The information corresponding to the left eye displayed by the even sub-pixel columns of the 2D display unit 130 may be refracted by the liquid crystal lens unit 141 and transmitted to the observer's left eye. So that the observer can see the correct image information.

Therefore, the 3D display state of the stereoscopic display device 100 can be achieved in combination with the display mode of the current frame and the next frame of the current frame, and since the left eye is displayed in half of the odd-numbered sub-pixel columns in 120 frames per second. Information, the even sub-pixel column displays the information of the right eye, the other half of the time odd sub-pixel column displays the information of the right eye, and the even sub-pixel column displays the information of the left eye, so that each frame displays the information of the left eye or the right. Eye information. When the stereoscopic display device 100 performs 3D display, the resolution is not lost, and the 3D display effect of the stereoscopic display device 100 is improved.

In the embodiment of the present invention, there is no voltage difference between one or more electrodes of the first electrode layer 112 and one or more electrodes of the second electrode layer 114; one or more electrodes of the third electrode layer 122 and There is no voltage difference between one or more of the electrodes of the fourth electrode layer 124. That is, when the incident light passes through the second polarization state adjusting unit 120, the polarization direction is rotated by 90°, and when the first polarization state adjusting unit 110 passes through, the polarization direction is selected to be 45°, so that when the liquid crystal layer is entered, the refractive index of the liquid crystal coating layer 143 is . Therefore, as shown in FIG. 5, the liquid crystal coating layer 143 corresponds to the first refractive index of the light incident on the liquid crystal coating layer 143 through the first polarization state adjusting unit 110, so that the light passes through the liquid crystal coating layer 143 and the lens microstructure. At 142, the refractive index does not change, so that the image information displayed by the 2D display unit 130 simultaneously enters the left eye and the right eye of the user, realizing the 2D display state, and the resolution is not lost.

The stereoscopic display device 100 provided by the embodiment of the present invention can realize a 3D display state and a 2D display state, and in the 3D display state and the 2D display state, the resolution does not occur, that is, the display performance is better in both display states. .

Embodiments of the invention

The existing stereoscopic display device simultaneously provides images with different parallaxes to the left and right eyes at the same time by spatial division, which causes the viewed image information to be smaller than the physical resolution of the 2D screen itself.

In view of the above, the inventors have provided a stereoscopic display device and control method to improve existing problems through long-term research and extensive practice.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The detailed description of the embodiments of the invention, which are set forth in the drawings, are not intended to limit the scope of the claimed invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

First embodiment

The first embodiment of the present invention provides a stereoscopic display device 100. Referring to FIG. 1 , the stereoscopic display device 100 includes a first polarization state adjustment unit 110 including a first substrate 111 and a first electrode layer 112 which are sequentially stacked. a first liquid crystal layer 113, a second electrode layer 114, and a second substrate 115; a second polarization state adjustment unit 120 disposed on one side of the first polarization state adjustment unit 110, and the second polarization state adjustment unit 120 includes a plurality of layers arranged in sequence a third substrate 121, a third electrode layer 122, a second liquid crystal layer 123, a fourth electrode layer 124, and a fourth substrate 125; 2D disposed on a side of the second polarization state adjustment unit 120 away from the first polarization state adjustment unit 110 The display unit 130; and the liquid crystal lens unit 141 disposed on a side of the first polarization state adjustment unit 110 away from the second polarization state adjustment unit 120.

Further, when the current frame is in the 3D display state, the odd sub-pixel columns of the 2D display screen display the image information corresponding to the left eye, and the even sub-pixel columns of the 2D display screen display the image information corresponding to the right eye, and the second polarization state The adjustment unit 120 is in a first preset working state, and the first polarization state adjustment unit 110 is in a second preset working state, so that the image information corresponding to the left eye enters the left eye of the user, and the image information corresponding to the right eye enters the right of the user. Eye; in the next frame of the current frame in the 3D display state, the odd sub-pixel columns of the 2D display screen display the image information corresponding to the right eye, and the even sub-pixel columns of the 2D display screen display the image information corresponding to the left eye The first polarization state adjustment unit 110 is in a second preset operation state, and the second polarization state adjustment unit 120 is in a second preset operation state, so that the image information corresponding to the left eye enters the left eye of the user, and the image corresponding to the right eye. The information enters the user's right eye.

In the embodiment of the present invention, the first electrode layer 112 may include one or more first electrode layer electrodes; the second electrode layer 114 may include one or more second electrode layer electrodes; and the third electrode layer 122 may include one or A plurality of third electrode layer electrodes; the fourth electrode layer 124 may include one or more fourth electrode layer electrodes.

As an embodiment, the first electrode layer 112 may include a first electrode layer electrode; the second electrode layer 114 may include a second electrode layer electrode; the third electrode layer 122 includes a third electrode layer electrode; and the fourth electrode Layer 124 includes a fourth electrode layer electrode.

Specifically, the first electrode layer electrode, the second electrode layer electrode, the third electrode layer electrode, and the fourth electrode layer electrode may be planar electrodes. Thereby, the electrodes in each electrode layer can be made to correspond to the substrate.

As another embodiment, the first electrode layer 112 may include a plurality of first electrode layer electrodes; the second electrode layer 114 may include a plurality of second electrode layer electrodes; and the third electrode layer 122 includes a plurality of third electrode layer electrodes The fourth electrode layer 124 includes a plurality of fourth electrode layer electrodes.

Specifically, the first electrode layer electrode, the second electrode layer electrode, the third electrode layer electrode, and the fourth electrode layer electrode may also be strip electrodes. The strip electrodes in each electrode layer may be adjacent to each other in order, and the arrangement direction is uniform, so that the plurality of strip electrodes are seamlessly connected as a whole, and the whole corresponds to the substrate.

In the embodiment of the present invention, the first liquid crystal layer 113 and the second liquid crystal layer 123 may be twisted nematic liquid crystals, that is, ordinary TN type liquid crystals. The first substrate 111, the second substrate 115, the third substrate 121, and the fourth substrate 125 may be glass substrates.

In addition, in the embodiment of the present invention, an angle between an orientation direction of the first electrode layer electrode and an orientation direction of the second electrode layer 114 is a first predetermined angle. The angle between the orientation direction of the third electrode layer electrode and the orientation direction of the second electrode layer 114 is a second predetermined angle.

Specifically, a first alignment layer may be disposed between the first electrode layer electrode and the first liquid crystal layer 113, and a second alignment layer and a third electrode layer electrode may be disposed between the second electrode layer electrode and the first liquid crystal layer 113. A third alignment layer may be disposed between the second liquid crystal layer 123 and the second liquid crystal layer 123, and a fourth alignment layer may be disposed between the fourth electrode layer electrode and the second liquid crystal layer 123. Thereby, the orientations of the first electrode layer electrode, the second electrode layer electrode, the third electrode layer electrode, and the fourth electrode layer electrode can be achieved.

In an embodiment of the invention, the first alignment layer, the second alignment layer, the third alignment layer, and the fourth alignment layer may be polyimide polyimide materials.

In the embodiment of the present invention, referring to FIG. 1, the liquid crystal lens unit 141 includes a film substrate 141, a lens microstructure 142, and a liquid crystal coating layer 143. The liquid crystal coating layer 143 is adjacent to the first polarization state adjusting unit 110, the lens microstructure 142 is disposed on one side of the film substrate 141, and the liquid crystal coating layer 143 is disposed on a side of the lens microstructure 142 away from the film substrate 141. The specific material of the film substrate 141 may be a PET material.

Further, the liquid crystal coating layer 143 includes a plurality of sub-liquid crystal coating layers 143 of a predetermined structure, the cross section of the predetermined structure is a preset shape, the film substrate 141 facing the sub liquid crystal coating layer 143 of the predetermined structure and the preset structure The lens microstructures 142 facing the sub-liquid crystal coating 143 form lens units, each lens unit facing the two adjacent sub-pixel columns of the 2D display unit 130.

In the embodiment of the present invention, the specific preset shape may be a curved surface shape, an isosceles triangular shape, or a bilaterally symmetric convex surface shape composed of a plurality of segments. The shape of the side of the mirror microstructure close to the liquid crystal coating layer 143 should correspond to the shape of the liquid crystal coating layer 143, that is, the side of the lens microstructure 142 close to the liquid crystal coating layer 143 is a curved surface, and the lens microstructure 142 is away from the liquid crystal coating layer 143. The side, that is, the side close to the film substrate 141 is a flat surface. Additionally, the side of the liquid crystal coating 143 that is remote from the lens microstructure 142 may be planar. It will be appreciated that the side of the liquid crystal coating 143 that is in contact with the lens microstructure 142 has a complementary structure and has a flat surface on the side remote from the lens microstructure 142. In addition, the liquid crystals in the liquid crystal coating layer 143 are aligned and the long axes of the molecules are aligned in a specified direction.

In the embodiment of the present invention, the 2D display unit 130 may be a TFT_LCD liquid crystal display. The 2D display unit 130 includes a matrix of red, green, and blue sub-pixels for providing display information to the stereoscopic display device 100. Of course, the specific type of the 2D display unit 130 is not limited in the embodiment of the present invention.

In the embodiment of the present invention, the 2D display unit 130 and the second polarization state adjustment unit 120 can both operate at high frequencies. For example, it operates at 120 Hz, or 120 frames per second. The 2D display unit 130 may alternately display the image information corresponding to the left eye and the image information corresponding to the right eye on the corresponding sub-pixels in a preset time period. Specifically, the preset time may correspond to 120 Hz, that is, 1/120 second, and simultaneously switch the working state of the second polarization state adjusting unit 120, and combine the optical function of the first polarization state adjusting unit 110 to the left eye information and the right. The eye information is transmitted to the observer's left and right eyes, respectively.

For example, referring to FIG. 2, I represents a first preset working state, and II represents a second preset working state, which may be in every second, in the odd frame, ie, 1, 3, 5, ..., 117, 119. In the frame, the odd sub-pixel columns of the 2D display unit 130 can display the information corresponding to the left eye, and the even sub-pixel columns of the 2D display unit 130 can display the information corresponding to the right eye, that is, the information displayed by the sub-pixel column is the LRLR in FIG. 2... And the second polarization state adjustment unit 120 is in a first preset working state, the first working state is a state of rotating the second predetermined angle, and the first polarization state adjusting unit 110 is in a second preset working state, That is, the state of no rotation, at this time, the information corresponding to the left eye can be refracted by the liquid crystal lens unit 141 and transmitted to the left eye of the observer, and the information corresponding to the right eye can be refracted by the liquid crystal lens unit 141 and transmitted to the right eye of the observer. .

Referring to FIG. 2, in the case of the even frames, that is, 2, 4, 6, ..., 118, 120 frames, the odd sub-pixel columns of the 2D display unit 130 display the information corresponding to the right eye, and the even sub-pixel columns of the 2D display unit 130. The information corresponding to the left eye is displayed, that is, the information displayed by the sub-pixel column is the arrangement of RLRL... in FIG. 2, and the second polarization state adjustment unit 120 is in the second preset working state, that is, the state of no rotation, the first polarization state. The adjusting unit 110 is in a second preset working state, that is, a state in which no light is rotated. At this time, the information corresponding to the left eye can be refracted by the liquid crystal lens unit 141 and transmitted to the left eye of the observer, and the information corresponding to the right eye can pass through the liquid crystal lens. Unit 141 is refracted and delivered to the observer's right eye. Thereby, a stereoscopic display state can be achieved.

In the embodiment of the present invention, the refractive index of the lens microstructure 142 is a first refractive index, and the first refractive index may be between the ordinary light refractive index and the extraordinary light refractive index, for example, may be.

In the current frame, the first polarization state adjustment unit 110 is in a power-on state, such that one electrode or a plurality of electrodes of the first electrode layer 112 and one or more electrodes of the second electrode layer 114 have a voltage difference; the second polarization The state adjustment unit 120 is in an unpowered state, and there is no voltage difference between one or more electrodes of the third electrode layer 122 and one or more electrodes of the fourth electrode layer 124. At this time, the first polarization state adjusting unit 110 may be in the first preset working state, that is, the liquid crystal molecules of the first liquid crystal layer 113 lose the optical rotation characteristics, so that the polarization characteristics of the linearly polarized light incident to the first polarization state adjusting unit 110 are made. Without change, the second polarization state adjusting unit 120 is in the second operational state, that is, the liquid crystal molecules of the second liquid crystal layer 123 are naturally twisted by 90 degrees, and the polarization angle of the incident linearly polarized light is changed by 90 degrees. Therefore, the linearly polarized light emitted from the 2D display unit 130 is changed by 90 degrees after passing through the second polarization state adjusting unit 120, and when the first polarization state adjusting unit 110 passes, the polarization characteristic is not changed, and is further incident on the liquid crystal lens unit 141. In the liquid crystal coating layer 143, since the polarization direction of the incident light is perpendicular to the long-axis direction of the liquid crystal molecules in the liquid crystal coating layer 143, the refractive index of the liquid crystal coating layer 143 is an ordinary refractive index.

As shown in FIG. 3, since the refractive index of the lens microstructure 142 is greater than the ordinary light refractive index, when the light from the liquid crystal coating layer 143 enters the lens microstructure 142, it corresponds to the incident light entering the optically dense medium from the light-diffusing medium, according to the refraction. The law shows that the incident light is close to the normal. Therefore, the information corresponding to the left eye of the odd sub-pixel column display of the 2D display unit 130 can be refracted by the liquid crystal lens unit 141 and transmitted to the left eye of the observer, and the right eye corresponding to the even sub-pixel column of the 2D display unit 130 is displayed. The information can be refracted by the liquid crystal lens unit 141 and transmitted to the observer's right eye so that the observer can see the correct image information.

At the next frame of the current frame, the first polarization state adjustment unit 110 is still in the power-on state, and one or more electrodes of the first electrode layer 112 and one or more electrodes of the second electrode layer 114 are There is a voltage difference therebetween; the second polarization state adjustment unit 120 adjusts to a state of power supply such that there is no voltage difference between one or more electrodes of the third electrode layer 122 and one or more electrodes of the fourth electrode layer 124. At this time, the first polarization state adjusting unit 110 and the second polarization state adjusting unit 120 may be in the second preset working state, that is, the liquid crystal molecules of the first liquid crystal layer 113 and the second liquid crystal layer 123 lose the optical rotation characteristics, so that the incident state is The polarization characteristic of the linearly polarized light of the first polarization state adjustment unit 110 does not change, and the polarization characteristic of the linearly polarized light incident to the second polarization state adjustment unit 120 does not change. Therefore, after the linearly polarized light emitted from the 2D display unit 130 passes through the second polarization state adjusting unit 120, the polarization characteristic does not change. When the first polarization state adjusting unit 110 passes through, the polarization characteristic does not change, and is further incident on the liquid crystal lens unit 141. In the liquid crystal coating layer 143, since the polarization direction of the incident light is parallel to the long-axis direction of the liquid crystal molecules in the liquid crystal coating layer 143, the refractive index of the liquid crystal coating layer 143 is an extraordinary refractive index.

As shown in FIG. 4, since the refractive index of the lens microstructure 142 is smaller than the extraordinary refractive index of light, when the light from the liquid crystal coating layer 143 enters the lens microstructure 142, it corresponds to incident light entering the light-dissipating medium from the optically dense medium, according to According to the law of refraction, the incident light deviates from the normal line, and the odd-numbered sub-pixel column and the even-numbered sub-pixel column of the 2D display unit 130 exchange the left and right eye information in the next frame of the current frame, and the right eye of the odd-numbered sub-pixel column of the 2D display unit 130 displays The corresponding information may be refracted by the liquid crystal lens unit 141 and transmitted to the right eye of the observer. The information corresponding to the left eye displayed by the even sub-pixel columns of the 2D display unit 130 may be refracted by the liquid crystal lens unit 141 and transmitted to the observer's left eye. So that the observer can see the correct image information.

Therefore, the 3D display state of the stereoscopic display device 100 can be achieved in combination with the display mode of the current frame and the next frame of the current frame, and since the left eye is displayed in half of the odd-numbered sub-pixel columns in 120 frames per second. Information, the even sub-pixel column displays the information of the right eye, the other half of the time odd sub-pixel column displays the information of the right eye, and the even sub-pixel column displays the information of the left eye, so that each frame displays the information of the left eye or the right. Eye information. When the stereoscopic display device 100 performs 3D display, the resolution is not lost, and the 3D display effect of the stereoscopic display device 100 is improved.

In the embodiment of the present invention, there is no voltage difference between one or more electrodes of the first electrode layer 112 and one or more electrodes of the second electrode layer 114; one or more electrodes of the third electrode layer 122 and There is no voltage difference between one or more of the electrodes of the fourth electrode layer 124. That is, when the incident light passes through the second polarization state adjusting unit 120, the polarization direction is rotated by 90°, and when the first polarization state adjusting unit 110 passes through, the polarization direction is selected to be 45°, so that when the liquid crystal layer is entered, the refractive index of the liquid crystal coating layer 143 is . Therefore, as shown in FIG. 5, the liquid crystal coating layer 143 corresponds to the first refractive index of the light incident on the liquid crystal coating layer 143 through the first polarization state adjusting unit 110, so that the light passes through the liquid crystal coating layer 143 and the lens microstructure. At 142, the refractive index does not change, so that the image information displayed by the 2D display unit 130 simultaneously enters the left eye and the right eye of the user, realizing the 2D display state, and the resolution is not lost.

The stereoscopic display device 100 provided by the embodiment of the present invention can realize a 3D display state and a 2D display state, and in the 3D display state and the 2D display state, the resolution does not occur, that is, the display performance is better in both display states. .

Second embodiment

A second embodiment of the present invention provides a control method applied to the stereoscopic display device provided by the first embodiment of the present invention. The control method includes: when the current frame is in the 3D display state, controlling the odd sub-pixel columns of the 2D display screen to display the image information corresponding to the left eye, and the even sub-pixel columns of the 2D display screen displaying the image information corresponding to the right eye, The second polarization state adjustment unit is in a first preset working state, and the first polarization state adjustment unit is in a second preset working state, so that the image information corresponding to the left eye enters the left eye of the user, and the image information corresponding to the right eye enters the user. The right eye; when the next frame of the current frame in the 3D display state, the odd sub-pixel column of the control 2D display screen displays the image information corresponding to the right eye, and the even sub-pixel column of the 2D display screen displays the corresponding image of the left eye Image information, the first polarization state adjustment unit is a second preset operation state, and the second polarization state adjustment unit is a second preset operation state, so that image information corresponding to the left eye enters the left eye of the user, and the image corresponding to the right eye The information enters the user's right eye. Thereby, the 3D display state of the stereoscopic display device can be realized, and the resolution of the stereoscopic display device is not lost.

A stereoscopic display device and a control method thereof according to an embodiment of the present invention, the stereoscopic display device includes a liquid crystal lens unit, a first polarization state adjustment unit, a second polarization state adjustment unit, and a 2D display unit, and the first polarization state adjustment unit includes a plurality of layers. a first substrate, a first electrode layer, a first liquid crystal layer, a second electrode layer, and a second substrate, wherein the second polarization state adjusting unit includes a third substrate, a third electrode layer, and a second liquid crystal layer, which are sequentially stacked. The fourth electrode layer and the fourth substrate, in the current frame, the odd sub-pixel columns of the 2D display screen display the image information corresponding to the left eye, the even sub-pixel columns of the 2D display screen display the image information corresponding to the right eye, and the second polarization state The adjustment unit is in a first preset working state, and the first polarization state adjustment unit is in a second preset working state, so that the image information corresponding to the left eye enters the left eye of the user, and the image information corresponding to the right eye enters the right eye of the user. In the next frame of the current frame, the odd sub-pixel columns of the 2D display screen display the image information corresponding to the right eye, and the even sub-pixel columns of the 2D display screen Displaying image information corresponding to the left eye, the first polarization state adjustment unit is in a second preset working state, and the second polarization state adjustment unit is in a second preset working state, so that image information corresponding to the left eye enters the left eye of the user. The image information corresponding to the right eye enters the right eye of the user. The left eye information displayed in the odd sub-pixel column of the 2D display unit in the current frame can be entered into the left eye of the user in the 2D display state, and the right eye information displayed in the even sub-pixel column can enter the right eye of the user, the current frame The right eye information displayed by the odd sub-pixel column of the 2D display unit can enter the right eye of the user in the next frame, and the left eye information of the even sub-pixel column of the 2D display unit can enter the left eye of the user, thereby realizing the 3D display effect. At the same time, the odd sub-pixel column and the even sub-pixel column of the 2D display unit are alternately displayed with the information corresponding to the left eye and the information corresponding to the right eye at the time interval of the frame, so that the stereoscopic display device performs 3D display while the resolution is not The occurrence of loss solves the problem that the image in the prior art is simultaneously provided to the left and right eyes with different parallaxes at the same time, resulting in loss of resolution.

The technical solutions in the embodiments of the present invention are clearly and completely described in conjunction with the drawings in the embodiments of the present invention, and the embodiments are described. It is a partial embodiment of the invention, and not all of the embodiments. The components of the embodiments of the invention, which are generally described and illustrated in the figures herein, may be arranged and designed in various different configurations.

Therefore, the above detailed description of the embodiments of the invention, which are set in the drawings, are not intended to limit the scope of the claimed invention All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that similar reference numerals and letters indicate similar items in the following figures, and therefore, once an item is defined in a drawing, it is not necessary to further define and explain it in the subsequent drawings.

In the description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. The orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is conventionally placed when the invention product is used, for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or component referred to must have a particular orientation, is constructed and operated in a particular orientation, and thus is not to be construed as limiting the invention. Moreover, the terms "first", "second", "third", and the like are used merely to distinguish a description, and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it should be noted that the terms "set", "install", "connected", and "connected" are to be understood broadly, and may be fixed connections, for example, unless otherwise specifically defined and defined. It can also be a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be internal communication between the two elements. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

Claims (10)

  1. A stereoscopic display device, characterized in that the stereoscopic display device comprises:
    The first polarization state adjusting unit includes a first substrate, a first electrode layer, a first liquid crystal layer, a second electrode layer, and a second substrate which are sequentially stacked;
    a second polarization state adjustment unit disposed on a side of the first polarization state adjustment unit, the second polarization state adjustment unit including a third substrate, a third electrode layer, a second liquid crystal layer, and a fourth electrode that are sequentially stacked a layer and a fourth substrate;
    a 2D display unit disposed on a side of the second polarization state adjustment unit away from the first polarization state adjustment unit;
    And a liquid crystal lens unit disposed on a side of the first polarization state adjusting unit away from the second polarization state adjusting unit;
    When the current frame is in the 3D display state, the odd sub-pixel columns of the 2D display screen display image information corresponding to the left eye, and the even sub-pixel columns of the 2D display screen display image information corresponding to the right eye, the The second polarization state adjustment unit is in a first preset working state, and the first polarization state adjustment unit is in a second preset working state, so that image information corresponding to the left eye enters a left eye of the user, where the right eye corresponds to Image information enters the user's right eye;
    When the next frame of the current frame is in the 3D display state, the odd sub-pixel columns of the 2D display screen display image information corresponding to the right eye, and the even sub-pixel columns of the 2D display screen display corresponding to the left eye Image information, the first polarization state adjustment unit is a second preset operation state, and the second polarization state adjustment unit is a second preset operation state, so that image information corresponding to the left eye enters a left eye of the user The image information corresponding to the right eye enters the right eye of the user.
  2. The stereoscopic display device according to claim 1, wherein the first electrode layer comprises a first electrode layer electrode, the second electrode layer comprises a second electrode layer electrode, and the first electrode layer electrode And the second electrode layer electrode is a planar electrode.
  3. The stereoscopic display device according to claim 2, wherein an angle between an orientation direction of the first electrode layer electrode and an orientation direction of the second electrode layer is a first predetermined angle.
  4. The stereoscopic display device according to claim 1, wherein the third electrode layer comprises a third electrode layer electrode, the fourth electrode layer comprises a fourth electrode layer electrode, and the third electrode layer electrode And the fourth electrode layer electrode is a planar electrode.
  5. The stereoscopic display device according to claim 4, wherein an angle between an orientation direction of the third electrode layer electrode and an orientation direction of the fourth electrode layer is a second predetermined angle.
  6. The stereoscopic display device according to claim 1, wherein the liquid crystal lens unit comprises a film substrate, a lens microstructure, and a liquid crystal coating, the liquid crystal coating being adjacent to the first polarization state adjusting unit, The lens microstructure is disposed on one side of the film substrate, and the liquid crystal coating is disposed on a side of the lens microstructure away from the film substrate.
  7. The stereoscopic display device according to claim 6, wherein the liquid crystal coating layer comprises a plurality of sub-liquid crystal coating layers of a predetermined structure, and a cross section of the predetermined structure is a preset shape, and the predetermined structure is The lens substrate facing the sub-liquid crystal coating and the lens microstructure of the sub-liquid crystal coating of the predetermined structure constitute a lens unit, each of the lens units facing two adjacent sub-units of the 2D display unit Pixel column.
  8. The stereoscopic display device according to claim 7, wherein the refractive index of the lens microstructure is a first refractive index, and the first refractive index is between an ordinary refractive index and an extraordinary refractive index; When the current frame is, one or more electrodes of the first electrode layer and one or more electrodes of the second electrode layer have a voltage difference, and one or more electrodes of the third electrode layer and the first There is no voltage difference between one or more electrodes of the four electrode layer, and the refractive index of the liquid crystal coating corresponding to the light incident on the liquid crystal coating through the polarization state adjusting unit is an ordinary light refractive index so that the left eye corresponds to The image information enters the left eye of the user, and the image information corresponding to the right eye enters the right eye of the user; when the next frame of the current frame is, the one or more electrodes of the first electrode layer and the second electrode There is a voltage difference between one or more electrodes of the layer, one or more electrodes of the third electrode layer and one or more electrodes of the fourth electrode layer have a voltage difference, and the liquid crystal coating correspondingly passes through the first partial The refractive index of the light incident on the liquid crystal coating by the vibration state adjusting unit is an extraordinary light refractive index such that image information corresponding to the left eye enters the left eye of the user, and image information corresponding to the right eye enters the right eye of the user.
  9. The stereoscopic display device according to claim 7, wherein the refractive index of the lens microstructure is a first refractive index, and the first refractive index is between an ordinary refractive index and an extraordinary refractive index; When there is no voltage difference between one or more electrodes of the first electrode layer and one or more electrodes of the second electrode layer, one or more electrodes of the third electrode layer and the fourth There is no voltage difference between one or more electrodes of the electrode layer, and the refractive index of the liquid crystal coating corresponding to light incident on the liquid crystal coating through the first polarization state adjusting unit is the same as the first refractive index The image information displayed by the 2D display unit is simultaneously entered into the left eye and the right eye of the user to realize a 2D display state.
  10. A control method, characterized in that it is applied to the stereoscopic display device according to any one of claims 1 to 9, the method comprising:
    When the current frame is in the 3D display state, the odd sub-pixel columns of the 2D display screen are displayed to display image information corresponding to the left eye, and the even sub-pixel columns of the 2D display screen display image information corresponding to the right eye, The second polarization state adjustment unit is a first preset operation state, and the first polarization state adjustment unit is a second preset operation state, so that image information corresponding to the left eye enters a left eye of the user, the right eye Corresponding image information enters the right eye of the user;
    When the next frame of the current frame in the 3D display state is controlled, the odd sub-pixel columns of the 2D display screen are displayed to display image information corresponding to the right eye, and the even sub-pixel columns of the 2D display screen display the left eye corresponding Image information, the first polarization state adjustment unit is a second preset operation state, and the second polarization state adjustment unit is a second preset operation state, so that image information corresponding to the left eye enters the left side of the user In the eye, the image information corresponding to the right eye enters the right eye of the user.
PCT/CN2018/093340 2017-10-26 2018-06-28 Three-dimensional display device and control method thereof WO2019080532A1 (en)

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