CN109633919B - Naked eye 3D display device and display method thereof - Google Patents
Naked eye 3D display device and display method thereof Download PDFInfo
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 105
- 230000003287 optical effect Effects 0.000 claims abstract description 47
- 239000004988 Nematic liquid crystal Substances 0.000 claims description 23
- 238000005516 engineering process Methods 0.000 description 3
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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- G—PHYSICS
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13793—Blue phases
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Abstract
A naked eye 3D display device and a display method thereof are provided, wherein the naked eye 3D display device comprises a first display screen, a second display screen, a blue phase liquid crystal layer and a grating. The first display screen periodically displays a first screen and a second screen. By opening or closing the second display screen, the projection light direction of the first picture or the second picture is enabled to generate no deviation or deviation. The blue phase liquid crystal layer is provided with an optical axis with an angle, and the blue phase liquid crystal layer is controlled by applying voltage to enable the projection light direction of the first picture to be vertical to the optical axis or control the projection light direction of the second picture to be parallel to the optical axis. And enabling the first picture and the second picture displayed on one side of the blue phase liquid crystal layer to pass through the grating, so that the first picture reaches the left eye of a viewer, and the second picture reaches the right eye of the viewer, thereby realizing a color 3D image. Therefore, the resolution of the naked eye 3D display device and the display method thereof is effectively improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a naked eye 3D display device and a display method thereof.
Background
With the rapid development of display technology, liquid crystal display has become the most widespread display technology at present, and people have higher and higher requirements on display technology, and 3D display devices have been developed accordingly. With the rise of 3D display, naked eye 3D is also attracting attention. The principle of binocular parallax is mainly utilized for naked eye 3D display, namely, the light path of projected light is adjusted, so that left eyes of human eyes can receive left eye images, right eyes of human eyes can receive right eye images, and therefore the human can feel 3D.
The current naked eye 3D device includes a grating type (barrier type) naked eye 3D display device and a lens type (lens type) naked eye 3D display device. Both naked-eye 3D display modes double the resolution of the panel by dividing the panel pixels into two groups. Naked-eye 3D is generally used in Augmented Reality (AR) and Virtual Reality (VR), both of which have high requirements on resolution. However, how to realize high-resolution naked-eye 3D is one of the biggest bottlenecks that limit the development and application of the method.
Disclosure of Invention
The invention aims to provide a naked eye 3D display device and a display method thereof, which can effectively improve the resolution.
To achieve the above object, the present invention provides a naked eye 3D display device including a first display screen, a second display screen, a blue phase liquid crystal layer and a grating. The first display screen array is provided with a plurality of RGB pixels, and each RGB pixel periodically displays a first picture and a second picture. The second display screen is arranged adjacent to one side of the first display screen, and the projection light direction of the first picture or the second picture is enabled to generate no deviation or deviation by opening or closing the second display screen. Blue looks liquid crystal layer is adjacent to be located one side of second display screen, blue looks liquid crystal layer has the optical axis of an angle, through applying voltage control blue looks liquid crystal layer makes the projection light direction on first picture with the optical axis is perpendicular, or control the projection light direction on second picture with the optical axis is parallel, in order to be in respectively one side display of blue looks liquid crystal layer first picture with the second picture. The grating is arranged adjacent to one side of the blue-phase liquid crystal layer, and the first picture and the second picture displayed on one side of the blue-phase liquid crystal layer pass through the grating, so that the first picture reaches the left eye of a viewer, and the second picture reaches the right eye of the viewer, thereby realizing a color 3D image.
According to an embodiment of the present invention, when the first image is displayed, the second display screen is turned on, and the projection light of the first display screen passes through the second display screen without being deflected, so that the projection light direction of the first image is perpendicular to the optical axis.
According to an embodiment of the present invention, when the second screen is displayed, the second display screen is turned off, and the projection light of the second screen passes through the second display screen and then is rotated by 90 degrees, so that the projection light direction is parallel to the optical axis of the blue phase liquid crystal layer, and the birefringent light (ne and no) along the optical axis direction is generated.
According to an embodiment of the present invention, the angle (θ) of the blue phase liquid crystal layer is between 30-60 degrees, the angle (Φ) of the birefringent light, the refractive indices of the birefringent light (ne and no) are 1-2 respectively, wherein
According to an embodiment of the present invention, the thickness of the blue phase liquid crystal layer is between 3-100 micrometers (um), and when the thickness of the blue phase liquid crystal layer is not changed, the applied voltage intensity is changed to control ne, so that the birefringent lights (no and ne) with different wavelengths have the same ratio and the phi angle is maintained, thereby simultaneously controlling the second frame to obtain the same offset.
According to an embodiment of the present invention, the first display screen is an LCD panel, the second display screen is a twisted nematic liquid crystal panel (TNLC), and the grating is a slit grating or a lenticular grating.
According to an embodiment of the present invention, a plurality of blue phase liquid crystal molecules (blue phase liquid crystal molecules) are arranged in the blue phase liquid crystal layer, and the optical axis is a single optical axis, and each of the blue phase liquid crystal molecules generates a birefringent light by applying a voltage.
Furthermore, the invention also provides a naked eye 3D display method, which comprises the following steps:
s10, providing a first display screen, wherein a plurality of RGB pixels are arranged in an array, and each RGB pixel periodically displays a first picture and a second picture;
s20, providing a second display screen formed on one side of the first display screen, and enabling the projection light direction of the first picture or the second picture not to deviate or deviate by opening or closing the second display screen;
s30, providing a blue phase liquid crystal layer formed on one side of the second display screen, wherein the blue phase liquid crystal layer forms an optical axis with an angle, and the blue phase liquid crystal layer is controlled by applying voltage to enable the projection light direction of the first picture to be perpendicular to the optical axis or to enable the projection light direction of the second picture to be parallel to the optical axis, so that the first picture and the second picture are respectively displayed on one side of the blue phase liquid crystal layer; and
and S40, providing a grating, forming the grating on one side of the blue phase liquid crystal layer, and enabling the first picture and the second picture which are respectively displayed on one side of the blue phase liquid crystal layer to pass through the grating, so that the first picture reaches the left eye, the second picture reaches the right eye, and the color 3D image is realized.
According to an embodiment of the present invention, when the second screen is displayed, the second display screen is turned off, the projection light of the second screen passes through the second display screen and then is rotated by 90 degrees, so that the projection light direction is parallel to the optical axis of the blue-phase liquid crystal layer, and birefringent lights (ne and no) along the optical axis direction are generated, the angle (θ) of the blue-phase liquid crystal layer is between 30 and 60 degrees, the included angle (Φ) of the birefringent lights is, the refractive indexes of the birefringent lights (ne and no) are respectively 1 to 2, wherein
According to an embodiment of the present invention, in step S30, the first and second pictures are respectively displayed as 2D images on one side of the blue phase liquid crystal layer, and a voltage is applied or not applied to the grating, thereby switching between the 2D or 3D images.
The invention also has the following beneficial effects that the invention realizes the offset of each RGB pixel by controlling the birefringent light of the blue phase liquid crystal layer, that is, the naked eye display device of the invention displays the first picture to reach the left eye of the observer at the first time T1, displays the second picture to generate offset (change the applied voltage intensity control ne) after passing through the blue phase liquid crystal layer at the second time T2, and then reaches the right eye of the observer through the grating, thereby realizing the color 3D display, and improving the resolution (image resolution) of the naked eye 3D display device. Therefore, the first picture and the second picture are displayed by generating the 3D image through the grating by utilizing the time division which can not be distinguished by human eyes and generating dislocation on space without dividing the naked eye 3D display device into two parts. When a second picture is displayed and voltage is applied to each blue phase liquid crystal molecule, the blue phase liquid crystal molecules shift (change the refractive index), and then reach the right eye of a viewer through the grating, so that 3D display is realized. .
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In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a naked eye 3D display device according to the present invention;
FIG. 2A is a schematic view of a projection light perpendicular to the optical axis of a blue phase liquid crystal layer according to the present invention;
FIG. 2B is a schematic view of the projection light parallel to the optical axis of the blue phase liquid crystal layer according to the present invention;
FIG. 3 is a schematic diagram of the birefringent light of the blue phase liquid crystal layer according to the present invention;
FIG. 4 is a graph of the index comparison of different wavelengths with the birefringent light (ne and no) of the present invention;
FIG. 5 is another schematic cross-sectional view of a naked eye 3D display device according to the present invention; and
fig. 6 is a block diagram of a naked eye 3D display method according to the present invention.
Detailed Description
Reference in the detailed description to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the same phrases in various places in the specification are not necessarily limited to the same embodiment, but are to be construed as independent or alternative embodiments to other embodiments. In light of the disclosure of the embodiments provided by the present invention, it should be understood by those skilled in the art that the embodiments described in the present invention can have other combinations or variations consistent with the concept of the present invention.
Referring to fig. 1, fig. 2A and fig. 2B, schematic cross-sectional views of a naked eye 3D display device according to the present invention illustrating an optical axis of a blue phase liquid crystal layer perpendicular/parallel to projection light. As shown in the figure, the invention provides a naked eye 3D display device 1, which includes a first display screen 2, a second display screen 3, a blue phase liquid crystal layer 4 and a grating 5. The first display screen 2 is preferably an LCD panel. The second display 3 is preferably a twisted nematic liquid crystal panel (TNLC), but not limited thereto. The grating 5 is for example a slit grating or a lenticular grating.
The first display panel 2 is provided with a plurality of RGB pixels, and in the embodiment shown in fig. 1, only a single horizontal pixel is taken out as a representation, and a backlight source (not shown) is included to provide the light source for the first display panel 2. Each of the RGB pixels periodically displays a screen 21. The second display screen 3 is disposed adjacent to one side of the first display screen 1, and the projection light direction (i.e., each of the RGB pixels) for displaying the picture 21 is not shifted or shifted by opening or closing the second display screen 3.
The blue phase liquid crystal layer 4 is arranged adjacent to one side of the second display screen 3, the blue phase liquid crystal layer 4 is provided with an optical axis 41 with an angle theta, the blue phase liquid crystal layer 4 is controlled by applying voltage to enable the projection light direction of the picture 21 to be perpendicular to the optical axis 41, or the projection light direction of the picture 21 to be parallel to the optical axis 41, the picture 21 displays a first picture 211 and a second picture 212 at a first time T1 and a second time T2 on one side of the blue phase liquid crystal layer 4 through the adjustment of the twisted nematic liquid crystal panel 3 and the blue phase liquid crystal layer 4.
Specifically, as shown in fig. 2A and 3, when the first display 1 displays the screen 21, the second display 3 is turned on, and the projection light 23 of the first display 2 passes through the second display 3 without being deflected, so that the projection light direction of the screen 21 is perpendicular to the optical axis 41. As shown in fig. 2B and 3, when the first display panel 1 displays the screen 21, the second display panel 3 is turned off, and the projection light 23 of the second screen 3 passes through the second display panel 3 and then is rotated by 90 degrees, so that the projection light direction is parallel to the optical axis 41 of the blue-phase liquid crystal layer 4, and birefringent light 42(ne and no) along the optical axis 41 is generated.
Referring to fig. 5, the grating 5 is disposed adjacent to one side of the blue phase liquid crystal layer 4, and in this embodiment, the grating 5 is preferably a slit grating having a plurality of spaced black stripes. After the RGB pixels are shifted by controlling the blue-phase liquid crystal layer 5, the first picture 211 and the second picture 212 displayed on one side of the blue-phase liquid crystal layer 5 pass through the grating 5, so that the first picture 211 reaches the left eye of the viewer, and the second picture 212 reaches the right eye of the viewer, thereby realizing a color 3D image.
Referring to fig. 4, the angle (θ) of the blue phase liquid crystal layer 4 is between 30 and 60 degrees, preferably 45 degrees. The included angle (phi) of the birefringent light 42, the refractive indexes of the birefringent light (ne and no) are 1-2 respectively, wherein
When the wavelength of the second picture 212 is shorter, the birefringent light 42 is larger, and the no/ne ratio is smaller, so that the second picture 212 is shifted to the same position. The thickness of the blue phase liquid crystal layer 4 in this embodiment is between 3 and 100 micrometers (um). When the thickness of the blue phase liquid crystal layer 4 is constant, the applied voltage intensity is changed to control ne, so that the birefringent light 42(no and ne) with different wavelengths has the same ratio and the phi angle is kept constant, thereby simultaneously controlling the second picture 212 to obtain the same offset.
In other words, the shift of each RGB pixel is realized by controlling the birefringent light 42 of the blue phase liquid crystal layer 4, that is, the naked eye 3D display device 1 of the present invention displays the first picture 211 to the left eye of the viewer at the first time T1, displays the second picture 212 to shift after passing through the blue phase liquid crystal layer 4 at the second time T2 (changing the applied voltage intensity control ne), and then reaches the right eye of the viewer through the grating 5, so as to realize the color 3D display, thereby improving the resolution (image resolution) of the naked eye 3D display device 1. Therefore, the first frame 211 and the second frame 212 are displayed by generating a 3D image through the grating 5 by using time division which can hardly be resolved by human eyes and generating a spatial offset, without dividing the naked-eye 3D display device 1 of the present invention into two parts.
In addition, a plurality of blue phase liquid crystal molecules (blue phase liquid crystal molecules) are arranged in the blue phase liquid crystal layer 5, an optical axis 41 of each blue phase liquid crystal molecule is a single optical axis, and each blue phase liquid crystal molecule generates the birefringent light 42 by applying a voltage. Specifically, when the second frame 212 is displayed and a voltage is applied to each of the blue phase liquid crystal molecules, a shift (change in refractive index) occurs, and the shift reaches the right eye of the viewer through the grating 5, thereby implementing 3D display.
Since the blue phase liquid crystal molecules are of an isotropic type (isotropic type). More specifically, when no voltage is applied, the blue phase liquid crystal molecules have optically isotropic characteristics in two or three dimensions. When a voltage is applied, the blue phase liquid crystal molecules have birefringence characteristics (birefringence) in one direction. Blue phase liquid crystal molecules (blue phase liquid crystal molecules) have optical uniaxial properties when a voltage is applied. Therefore, like nematic liquid crystal molecules (nematic liquid crystal molecules), blue phase liquid crystal molecules have viewing angle dependence in transmittance under applied voltage. On the other hand, since there is no initial alignment of optical anisotropy (optical anisotropy) in isotropic liquid crystal molecules, blue phase liquid crystal molecules can be aligned along the direction of an electric field unlike nematic liquid crystal molecules.
Referring to fig. 6, the invention further provides a naked eye 3D display method, which includes steps of S10 providing a first display screen 2 having a plurality of RGB pixels arranged in an array, each of the RGB pixels periodically displaying a frame 21; s20, providing a second display 3 formed on one side of the first display 2, and turning on or off the second display 3 to prevent the projection direction of the picture 21 from deviating or deviating; s30, providing a blue phase liquid crystal layer 4, formed on one side of the second display panel 3, wherein the blue phase liquid crystal layer 4 forms an optical axis 41 with an angle θ, the blue phase liquid crystal layer 4 is controlled by applying a voltage to make the projection light direction of the picture 21 perpendicular to the optical axis 41, or the projection light direction of the picture 21 parallel to the optical axis 41, the picture 21 displays a first picture 211 and a second picture 212 at a first time T1 and a second time T2 on one side of the blue phase liquid crystal layer 4 through the adjustment of the twisted nematic liquid crystal panel 3 and the blue phase liquid crystal layer 4; and S40, providing a grating 5 formed at one side of the blue phase liquid crystal layer 4, and allowing the first picture 211 and the second picture 212 respectively displayed at one side of the blue phase liquid crystal layer 5 to pass through the grating 5, so that the first picture 211 reaches a left eye and the second picture 212 reaches a right eye, thereby implementing a color 3D image.
In step S30, the first screen 211 and the second screen 212 are displayed as 2D images on the side of the blue phase liquid crystal layer 5, and the 2D or 3D images are switched by applying or not applying a voltage to the barrier 5. Specifically, when a voltage is applied to the grating 5, the grating 5 displays a plurality of black stripes (not shown) spaced from each other; in contrast, when no voltage is applied to the grating 5, the grating 5 assumes a transparent state. Therefore, the naked-eye 3D display device 1 can display 2D pictures to be viewed by a viewer, so that 2D and 3D can be switched in the same display device 1 without dividing the display device into two parts. For the rest of the detailed steps, please refer to the above embodiments, which are not repeated herein.
In summary, although the present invention has been disclosed with reference to the preferred embodiments, the above-mentioned preferred embodiments are not intended to limit the present invention, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present invention, which is defined by the appended claims.
Claims (6)
1. A naked eye 3D display device comprising:
the liquid crystal display device comprises a liquid crystal display panel, a driving circuit and a driving circuit, wherein a plurality of RGB pixels are arranged in an array, and each RGB pixel periodically displays a picture;
the twisted nematic liquid crystal panel is arranged adjacent to one side of the liquid crystal display panel, and the projected light direction of the picture is enabled to generate no deviation or offset by opening or closing the twisted nematic liquid crystal panel;
a blue phase liquid crystal layer adjacent to one side of the twisted nematic liquid crystal panel, the blue phase liquid crystal layer having an optical axis with an angle, the blue phase liquid crystal layer being controlled by applying a voltage to enable a projection light direction of the picture to be perpendicular to the optical axis or to control the projection light direction of the picture to be parallel to the optical axis, the picture being adjusted by the twisted nematic liquid crystal panel and the blue phase liquid crystal layer to display a first picture and a second picture at a first time on one side of the blue phase liquid crystal layer, the twisted nematic liquid crystal panel being turned on when the first picture is displayed, the projection light of the liquid crystal panel passing through the twisted nematic liquid crystal panel not being deflected to enable the projection light direction of the first picture to be perpendicular to the optical axis, the twisted nematic liquid crystal panel being turned off when the second picture is displayed, the projection light of the second picture passing through the twisted nematic liquid crystal panel being rotated by 90 degrees, making the projection light direction parallel to the optical axis of the blue phase liquid crystal layer and generating birefringent lights ne and no along the optical axis direction, the angle theta of the blue phase liquid crystal layer being between 30-60 degrees, the included angle phi of the birefringent lights, the refractive indexes of the birefringent lights ne and no being 1-2 respectively, wherein
the grating is arranged adjacent to one side of the blue-phase liquid crystal layer, and the first picture and the second picture displayed on one side of the blue-phase liquid crystal layer pass through the grating, so that the first picture reaches the left eye of a viewer, and the second picture reaches the right eye of the viewer, and the color 3D image is realized.
2. The naked-eye 3D display device of claim 1, wherein the thickness of the blue phase liquid crystal layer is 3-100 μm, and when the thickness of the blue phase liquid crystal layer is unchanged, the intensity of the applied voltage is changed to control ne so that the birefringent light with different wavelengths has the same ratio and the included angle is kept unchanged, thereby simultaneously controlling the second picture to obtain the same offset.
3. The naked eye 3D display device of claim 1, wherein the grating is a slit grating or a lenticular grating.
4. The naked eye 3D display device of claim 1, wherein a plurality of blue phase liquid crystal molecules are arranged in the blue phase liquid crystal layer and the optical axis is a single optical axis, and each of the blue phase liquid crystal molecules generates a birefringent light by applying a voltage.
5. A naked eye 3D display method comprises the following steps:
s10, providing a liquid crystal display panel, wherein a plurality of RGB pixels are arranged in an array, and each RGB pixel periodically displays a picture;
s20, providing a twisted nematic liquid crystal panel which is formed on one side of the liquid crystal display panel, and enabling the projection light direction of the picture not to deviate or offset by opening or closing the twisted nematic liquid crystal panel;
s30, providing a blue phase liquid crystal layer formed on one side of the twisted nematic liquid crystal panel, wherein the blue phase liquid crystal layer forms an optical axis with an angle, the blue phase liquid crystal layer is controlled by applying voltage to enable the projection light direction of the picture to be vertical to the optical axis, or the projection light direction of the picture to be parallel to the optical axis, the picture displays a first picture and a second picture at a first time on one side of the blue phase liquid crystal layer through the adjustment of the twisted nematic liquid crystal panel and the blue phase liquid crystal layer, when the first picture is displayed, the twisted nematic liquid crystal panel is opened, the projection light of the liquid crystal display panel does not deflect after passing through the twisted nematic liquid crystal panel, the projection light direction of the first picture is vertical to the optical axis, and when the second picture is displayed, the twisted nematic liquid crystal panel is closed, the projection light of the second picture passes through the twisted nematic liquid crystal panel and then rotates for 90 degrees, so that the projection light direction is parallel to the optical axis of the blue phase liquid crystal layer, and generates birefringent light ne and no along the optical axis direction, the angle theta of the blue phase liquid crystal layer is between 30 and 60 degrees, the included angle phi of the birefringent light is 1 to 2, and the refractive indexes of the birefringent light ne and no are respectively 1 to 2, wherein
and S40, providing a grating, forming the grating on one side of the blue phase liquid crystal layer, and enabling the first picture and the second picture which are respectively displayed on one side of the blue phase liquid crystal layer to pass through the grating, so that the first picture reaches the left eye, the second picture reaches the right eye, and the color 3D image is realized.
6. The naked-eye 3D display method of claim 5, wherein in step S30, the first and second pictures are respectively displayed as 2D images on one side of the blue phase liquid crystal layer, and the 2D or 3D images are switched by applying or not applying a voltage to the grating.
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| CN111948896B (en) * | 2020-08-15 | 2022-01-07 | 陈蜀乔 | Naked eye 3D local holographic display method |
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| KR100580216B1 (en) * | 2004-12-29 | 2006-05-16 | 삼성전자주식회사 | 3d image display system |
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