CN110780453B - Multi-view full resolution free stereo display screen - Google Patents
Multi-view full resolution free stereo display screen Download PDFInfo
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- CN110780453B CN110780453B CN201911135402.1A CN201911135402A CN110780453B CN 110780453 B CN110780453 B CN 110780453B CN 201911135402 A CN201911135402 A CN 201911135402A CN 110780453 B CN110780453 B CN 110780453B
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 162
- 239000000758 substrate Substances 0.000 claims abstract description 101
- 230000010287 polarization Effects 0.000 claims description 28
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
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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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The invention discloses a multi-view full-resolution free three-dimensional display screen, which comprises a backlight module, a first polaroid, a black-and-white liquid crystal substrate, a second polaroid, a plano-convex cylindrical lens array plate, a color liquid crystal display substrate, a third polaroid and a microcontroller module, wherein the backlight module, the first polaroid, the black-and-white liquid crystal substrate, the polaroid and the plano-convex cylindrical lens array plate are sequentially and tightly arranged, the plano-convex cylindrical lens array plate is provided with a plane surface and a convex cylindrical surface, a plurality of vertical micro-cylindrical lenses are arranged on the convex cylindrical surface in a close manner, the focal points of the vertical micro-cylindrical lenses are positioned on the plane surface, the plane surface is arranged towards the second polaroid, the convex cylindrical surface is arranged towards the color liquid crystal display substrate, and the color liquid crystal display substrate and the third polaroid are tightly arranged.
Description
Technical Field
The invention relates to the technical field of naked eye 3D, in particular to a multi-view full-resolution free three-dimensional display screen.
Background
With the continuous development of display technology and the advent of 3D products, in addition to the conventional technology of wearing 3D glasses, an open hole type 3D technology that does not require wearing 3D glasses has also emerged. The existing naked eye 3D technology is mainly divided into two types of spatial multiplexing and time multiplexing, the time multiplexing 3D display screen is an autostereoscopic display based on the time multiplexing and the existing directional backlight technology, but most of the existing directional backlight light sources adopt light sources with triangular light guide plates on the surfaces, outgoing light after being refracted by the light guide plates is larger in stray, light loss in the refraction process is larger, crosstalk is easy to generate, brightness is larger to be lost, and in addition, the existing directional backlight light sources can only realize two-viewpoint naked eye 3D display due to the design of the light guide plates.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a multi-view full-resolution autostereoscopic display panel that is less likely to cause crosstalk and has less luminance loss, and that can realize two or more views.
In order to achieve the above object, the solution of the present invention is:
A multi-view full resolution autostereoscopic display screen having a plurality of views, comprising a backlight module, a first polarizer, a black and white liquid crystal substrate, a second polarizer, a plano-convex cylindrical lens array plate, a color liquid crystal display substrate, a third polarizer, and a microcontroller module;
The backlight module, the first polaroid, the black-and-white liquid crystal substrate, the second polaroid and the plano-convex cylindrical lens array plate are sequentially and tightly arranged, the plano-convex cylindrical lens array plate is provided with a flat plate surface and a convex cylindrical surface, the flat plate surface is tightly attached to the second polaroid, the convex cylindrical surface is provided with a plurality of vertical micro-cylindrical lenses which are arranged next to each other, the focal point of each vertical micro-cylindrical lens is positioned on the flat plate surface, and the flat plate surface faces towards the second polaroid;
The plano-convex cylindrical lens array plate, the color liquid crystal display substrate and the third polaroid are sequentially arranged, the convex cylindrical surface is arranged towards the color liquid crystal display substrate, the distance between the highest position of the convex cylindrical surface and the color liquid crystal display substrate is 0-5mm, and the color liquid crystal display substrate and the third polaroid are closely arranged;
the microcontroller module is respectively and electrically connected with the black-and-white liquid crystal substrate and the color liquid crystal display substrate; the refreshing frequency of the color liquid crystal display substrate is consistent with that of the black and white liquid crystal substrate;
The backlight module is provided with a white light LED backlight module, a diffusion sheet and a brightness enhancement film, the black and white liquid crystal substrate is a black and white liquid crystal panel which does not contain a color filter and a polaroid, and the color liquid crystal display substrate is a color liquid crystal display panel which contains the color filter and does not contain the polaroid;
the black-and-white liquid crystal substrate is provided with a plurality of groups of liquid crystal switch groups which are sequentially arranged, each group of liquid crystal switch groups is provided with a plurality of columns of liquid crystal switches, the number of the liquid crystal switches contained in each group of liquid crystal switch groups is consistent with the number of the view points, and each liquid crystal switch group corresponds to each plano-convex cylindrical lens on the plano-convex cylindrical lens array plate one by one;
The first polarizer and the third polarizer have the same polarization direction, and the second polarizer has a polarization direction orthogonal to the first polarizer.
Further, the backlight module, the first polarizer, the black-and-white liquid crystal substrate, the second polarizer, the plano-convex cylindrical lens array plate, the color liquid crystal display substrate and the third polarizer are all provided with black frames at the side frames.
Further, the refreshing frequency of the black-and-white liquid crystal substrate is 120Hz-240Hz.
Further, the polarization direction of the first polarizer is disposed along the longitudinal direction.
Further, the polarization direction of the first polarizer is arranged in the transverse direction.
Further, the number of the viewpoints is 4.
Further, let the thickness of the position of the plano-convex cylindrical lens array plate with the largest thickness be T, the linear distance between the viewpoint and the third polarizer be S, let the distance between two adjacent plano-convex cylindrical lenses on the plano-convex cylindrical lens array plate be P, let the width of each liquid crystal switch group be h, then S, T, P and h satisfy the following relationship: h=.
Further, the width of the column liquid crystal switch is smaller than 0.3mm
After the structure is adopted, the multi-view full-resolution auto-stereoscopic display screen has the following beneficial effects: the light emitted by the backlight module is converted into uniformly distributed linear polarized light through the first polarizing plate, the linear polarized light is uniformly irradiated on the black-and-white liquid crystal substrate to realize light modulation, the micro-controller module controls the black-and-white liquid crystal substrate to load electric signals in a specific area, so that liquid crystal molecules deflect to turn on liquid crystal switches of corresponding columns, and the polarization direction of the light deflects in the area where the electric signals are loaded, and the polarized light is modulated through the liquid crystal switches and the second polarizing plate orthogonal to the first polarizing plate to generate a plane linear light source; in the area without electric signal, the liquid crystal switch is not turned on, the light polarization direction is not deflected, the light can not be transmitted, the liquid crystal switch is displayed as a dark area, when the turned-on liquid crystal switch is a plurality of liquid crystal switches which are arranged at equal intervals, a plurality of line light sources modulated by the plurality of turned-on liquid crystal switches are orderly arranged at intervals, a plane line-shaped backlight source required by a directional backlight naked eye 3D technology is formed, the light rays emitted by the line light sources which are orderly arranged at intervals are changed into directional light beams after passing through a plano-convex cylindrical lens array plate, the directional light beams are uniformly arranged and have intervals, and are ideal as the backlight source, so that the generated stray light is small, and the image crosstalk of the naked eye 3D display screen is small; the black-and-white liquid crystal substrate is provided with a plurality of liquid crystal switch groups which are sequentially arranged, each liquid crystal switch group is provided with a plurality of columns of liquid crystal switches, the microcontroller module controls the corresponding liquid crystal switch in each liquid crystal switch group to be turned on, a polaroid and a plano-convex cylindrical lens array plate can be matched to project light rays to a specific position corresponding to the corresponding liquid crystal switch, the corresponding viewpoint of each liquid crystal switch in each liquid crystal switch group is unique, a plurality of liquid crystal switches exist in each liquid crystal switch group, a plurality of generated viewpoints exist, and the light guide plate light source in the prior art can only realize two-viewpoint naked eye 3D display; due to the polarization maintaining effect of the plano-convex cylindrical lens array plate, the invention adopts three polaroids to cooperate, so that the brightness loss can be effectively reduced.
Drawings
Fig. 1 is a schematic structural diagram of a multi-view full resolution autostereoscopic display screen according to a first embodiment of the present invention;
Fig. 2 is a schematic view showing a partial structure of a multi-view full-resolution autostereoscopic display screen according to a first embodiment of the present invention;
fig. 3 is a schematic diagram of an arrangement structure of a white light backlight module, a first polarizer, a second polarizer and a third polarizer according to a first embodiment of the present invention;
Fig. 4-1 is a schematic diagram of a principle of loading signals at time T1 of a black-and-white liquid crystal substrate and a color liquid crystal display substrate in a 3D mode according to a first embodiment of the present invention;
Fig. 4-2 is a schematic diagram of a principle of loading signals at time T2 of a black-and-white lcd substrate and a color lcd substrate in a 3D mode according to a first embodiment of the present invention;
Fig. 4-3 are schematic diagrams of a principle of loading signals at time T3 of a black-and-white lcd substrate and a color lcd substrate in a 3D mode according to a first embodiment of the present invention;
Fig. 4-4 are schematic diagrams of a principle of loading signals at time T4 of the black-and-white lcd substrate and the color lcd substrate in the 3D mode according to the first embodiment of the present invention;
Fig. 5 is a schematic diagram of a principle of loading signals at time T1-time T4 of a black-and-white liquid crystal substrate and a color liquid crystal display substrate in a 2D mode according to a first embodiment of the present invention;
fig. 6 is a schematic diagram of the working principle of a multi-view full resolution autostereoscopic display screen according to the first embodiment of the present invention;
fig. 7 is a schematic diagram of an arrangement structure of a white light backlight module, a first polarizer, a second polarizer and a third polarizer according to a second embodiment of the present invention;
In the figure: the white light backlight module 1, the first polarizer 2, the black-and-white liquid crystal substrate 3, the second polarizer 4, the plano-convex cylindrical lens array plate 5, the color liquid crystal display substrate 6, the third polarizer 7, the micro controller module 8, the first liquid crystal switch 31, the second liquid crystal switch 32, the third liquid crystal switch 33, the fourth liquid crystal switch 34, the plano-convex cylindrical lens 51, the first view point 91, the second view point 92, the third view point 93, the fourth view point 94, the first incident light 111, the second incident light 112, the first longitudinal polarized light 211, the second transverse polarized light 212, the first planar linear light source 301, the first directional projection beam 301a, the second planar linear light source 302, the second directional projection beam 302a, the third planar linear light source 303, the third directional projection beam 303a, the fourth planar linear light source 304, the fourth directional projection beam 304a, the first transverse polarized light 411, the first longitudinal polarized light 412, the first emergent light 711, and the second emergent light.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, other embodiments that may be obtained by those of ordinary skill in the art without making any inventive changes are within the scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Embodiment one:
As shown in fig. 1 to 3, the multi-view full resolution autostereoscopic display panel has a plurality of views, including a backlight module 1, a first polarizing plate 2, a black and white liquid crystal substrate 3, a second polarizing plate 4, a plano-convex cylindrical lens array plate 5, a color liquid crystal display substrate 6, a third polarizing plate 7 and a micro controller module 8,
Preferably, the backlight module 1, the first polarizer 2, the black-and-white liquid crystal substrate 3, the second polarizer 4, the plano-convex cylindrical lens array plate 5, the color liquid crystal display substrate 6 and the third polarizer 7 are all provided with black frames (not shown in the figure) at the frame positions, and the black frames are used for preventing stray light from entering the corresponding backlight module 1, the first polarizer 2, the black-and-white liquid crystal substrate 3, the second polarizer 4, the plano-convex cylindrical lens array plate 5, the color liquid crystal display substrate 6 or the third polarizer 7.
The backlight module 1 is an existing backlight module with a white light LED backlight module, a diffusion sheet and a brightness enhancement film, and can be directly purchased, the black-and-white liquid crystal substrate 3 is a conventional black-and-white liquid crystal panel which does not contain a color filter and a polaroid, and can be directly purchased, the color liquid crystal display substrate 6 is a conventional color liquid crystal display panel which contains the color filter and does not contain the polaroid, the existing color liquid crystal display panel is provided with the polaroid, and the color liquid crystal display substrate 6 can be obtained after the polaroid is removed by modification on the existing color liquid crystal display panel which is directly purchased; the black-and-white liquid crystal substrate 3 is provided with a plurality of groups of liquid crystal switch groups which are sequentially arranged, each group of liquid crystal switch groups is provided with a plurality of columns of liquid crystal switches, preferably, the width of each column of liquid crystal switches is smaller than 0.3mm, the number of the liquid crystal switches contained in each group of liquid crystal switch groups is consistent with the number of view points, and each liquid crystal switch group corresponds to each plano-convex cylindrical lens 51 on the plano-convex cylindrical lens array plate 5 one by one;
the backlight module 1, the first polaroid 2, the black and white liquid crystal substrate 3, the second polaroid 4 and the plano-convex cylindrical lens array plate 5 are sequentially and tightly arranged, the plano-convex cylindrical lens array plate 5 is provided with a plane surface and a convex cylindrical surface, the plane surface is tightly attached to the second polaroid, the convex cylindrical surface is provided with a plurality of vertical micro-cylindrical lenses which are tightly arranged, the focuses of the vertical micro-cylindrical lenses are all positioned on the plane surface, the plane surface is arranged towards the second polaroid 4, the plano-convex cylindrical lens array plate 5, the color liquid crystal display substrate 6 and the third polaroid 7 are sequentially arranged, the convex cylindrical surface is arranged towards the color liquid crystal display substrate 6, the distance between the highest position of the convex cylindrical surface and the color liquid crystal display substrate 6 is 0-5mm, and the color liquid crystal display substrate 6 and the third polaroid 7 are tightly arranged.
The micro controller module 8 is electrically connected with the black-and-white liquid crystal substrate 3 and the color liquid crystal display substrate 6 respectively; the refresh frequency of the color liquid crystal display substrate 6 coincides with that of the black-and-white liquid crystal substrate 3.
The polarization directions of the first polarizer 2 and the third polarizer 7 coincide, and the polarization direction of the second polarizer 4 is orthogonal to the first polarizer 2.
Preferably, in the present embodiment, the number of viewpoints is 4, and the viewpoints are a first viewpoint 91, a second viewpoint 92, a third viewpoint 93, and a fourth viewpoint 94, respectively.
Further, let the thickness of the position of the plano-convex cylindrical lens array plate 5 with the largest thickness be T, let the distance between two adjacent plano-convex cylindrical lenses on the plano-convex cylindrical lens array plate 5 be P, let the width of each liquid crystal switch group be h, and the linear distance between the viewpoint and the third polarizer be S, then the relationship between S, T, P and h satisfies:
In the present embodiment, the polarization direction of the first polarizer 2 is vertical, the polarization direction of the second polarizer 4 is horizontal, the polarization direction of the third polarizer 7 is vertical, the backlight module 1 emits the first polarized light 211 in which the first incident light 111 is converted into the vertical polarization by the first polarizer 2, the black-and-white liquid crystal display substrate 3 alternately loads the electric signal in different areas to turn on the corresponding liquid crystal switch, the first vertical polarized light 211 can be deflected in the area loaded with the electric signal, converted into the horizontal polarized light, and not deflected in the area not loaded with the electric signal to remain as the vertical polarized light, the second polarizer 4 is disposed on the side of the black-and-white liquid crystal substrate 3 facing away from the first polarizer 2, the second polarizer 4 allows the horizontal polarized light to pass, the vertical polarized light is prevented from passing through, the emitted light deflected by the second polarizer 4 is the first horizontal polarized light 411, and a plurality of first horizontal polarized lights 411 become linear light sources. The plano-convex cylindrical lens array plate 5 has a polarization maintaining effect, that is, the influence of the polarization characteristic of the light beam is basically negligible, the polarization direction of the first transverse polarized light 411 passing through the plano-convex cylindrical lens array plate 5 is unchanged, the intensity of the first transverse polarized light is basically unchanged, the color liquid crystal display substrate 6 loads an image to be displayed through the micro controller module 8, the light beam of the first transverse polarized light 411 is modulated by the color liquid crystal display substrate 6 and then passes through the third polarizing plate 7 with longitudinal polarization to form the first emergent light 711, and the loaded image can be directionally displayed.
As shown in fig. 4-1, 4-2, 4-3 and 4-4, the black-and-white liquid crystal substrate 3 has a plurality of sets of liquid crystal switch groups, each set of liquid crystal switch groups has a first liquid crystal switch 31, a second liquid crystal switch 32, a third liquid crystal switch 33 and a fourth liquid crystal switch 34 arranged in order, and in the 3D display mode, the microcontroller module 8 loads an electric signal at the first liquid crystal switch 31 of the black-and-white liquid crystal substrate 3 at time T1, and simultaneously loads an image a at the color liquid crystal display substrate 6; an electric signal is loaded on the second liquid crystal switch 32 of the black-and-white liquid crystal substrate 3 at the time T2, and an image B is loaded on the color liquid crystal display substrate 6; an electric signal is applied to the third liquid crystal switch 33 of the black-and-white liquid crystal substrate 3 at the time T3, and an image C is applied to the color liquid crystal display substrate 6; an electric signal is applied to the fourth liquid crystal switch 34 of the black-and-white liquid crystal substrate 3 at the time T4, and an image D is applied to the color liquid crystal display substrate 6; the time T1, the time T2, the time T3 and the time T4 are 4 times with one period being continuous, the image A, the image B, the image C and the image D are 4 different images with parallax, the refresh frequency of the black-white liquid crystal substrate 3 and the color liquid crystal display substrate 6 is 120Hz-240Hz, and the continuous parallax images can be watched by human eyes at different viewpoints only when the refresh frequency is 30-60 periods per second.
As shown in fig. 5, in the 2D display mode, the micro controller module 8 loads electric signals on all of the first, second, third and fourth liquid crystal switches 31, 32, 33 and 34 on the black-and-white liquid crystal substrate 3 at time T1-T4, and simultaneously loads the same image a on the color liquid crystal display substrate 6. T1-T4 are a picture display period, different images are displayed at different moments, corresponding liquid crystal switches are turned on at the same time, preferably, the refreshing frequency of the black-white liquid crystal substrate 3 and the color liquid crystal display substrate 6 is 120Hz-240Hz, refreshing is carried out every second for 30-60 periods, and the human eyes can watch continuous identical images at different viewpoints.
The working principle of the invention is as follows:
Referring to fig. 6, light emitted from a first planar light source 301 modulated by a positive first polarizer 2, a black-and-white liquid crystal substrate 3, and a second polarizer 4 is converted into a first directional projection beam 301a by a front cylindrical lens of a plano-convex cylindrical lens array plate 5 to be projected to a first viewpoint 91; similarly, light rays emitted by the plane line light source are converted into second directional projection light beams 302a, third directional projection light beams 303a and fourth directional projection light beams 304a through the front cylindrical lenses of the plano-convex cylindrical lens array plate, and the second viewpoint 92, the third viewpoint 93 and the fourth viewpoint 94 are respectively projected to the third and fourth viewpoints, and the distance between the viewing areas is the interpupillary distance of human eyes. The color liquid crystal display substrate 6 and the polarizer 7 are placed in the optical path of the directional projection beam, and the color liquid crystal display substrate 6 displays images of the first view point 91 to the fourth view point 94 in synchronization with the first planar light source 301, the second planar light source 302, the third planar light source 303, and the fourth planar light source 304. When the first planar line light source 301 emits light, the generated first directional projection light beam 301a transmits the color liquid crystal display substrate 6 to display an image of the first viewpoint 91, and projects the image viewable at the first viewpoint 91 to the first viewpoint 91; similarly, when the second planar light source 302, the third planar light source 303, and the fourth planar light source 304 emit light, the generated second directional projection beam 302a, third directional projection beam 303a, and fourth directional projection beam 304a respectively project to different above-mentioned viewpoint positions through the images corresponding to the respective images of the second viewpoint 92, the third viewpoint 93, and the fourth viewpoint 94 displayed on the color liquid crystal display substrate 6. The left and right eyes of the viewer are positioned at any of the above two viewpoints to see two different images having parallax, thereby creating a 3D stereoscopic sense. The purpose of viewing the 3D image from multiple viewpoints is achieved.
In the 2D display mode, the left and right images seen by the viewer are identical, so that the first planar light source 301, the second planar light source 302, the third planar light source 303 and the fourth planar light source 304 emit light simultaneously in the 2D display mode, the generated light passes through the color liquid crystal display substrate 6 to display the same image, and the images seen by eyes at different viewpoint positions have no parallax, so that the 2D/3D display screen with the side light emitting optical fiber directional backlight has the advantage of being completely compatible with the 2D/3D display.
Embodiment two:
As shown in fig. 7, the present embodiment is different from the first embodiment in that: the polarization direction of the first polarizer 2 is transverse, the polarization direction of the second polarizer 4 is longitudinal, the polarization direction of the third polarizer 7 is transverse, the backlight module 1 emits second transverse polarized light 212 of which second incident light 112 is converted into longitudinal polarization through the first polarizer 2, the black-and-white liquid crystal display substrate 3 is alternately loaded with electric signals in different areas to turn on corresponding liquid crystal switches, the second transverse polarized light 212 can deflect in the areas loaded with the electric signals and convert into longitudinal polarized light, the second transverse polarized light 212 can not deflect in the areas not loaded with the electric signals and keep the same as transverse polarized light, the second polarizer 4 is arranged on the side, facing away from the first polarizer 2, of the black-and-white liquid crystal substrate 3, the second polarizer 4 allows the longitudinal polarized light to pass through, the outgoing light deflected by the second polarizer 4 is second longitudinal polarized light 412, and a plurality of first longitudinal polarized lights 412 become linear light sources. The plano-convex cylindrical lens array plate (not shown in the figure) has polarization-preserving effect, that is, the influence of the polarization characteristic of the light beam is basically negligible, the polarization direction of the second longitudinal polarized light 412 after passing through the plano-convex cylindrical lens array plate 5 is unchanged, the intensity of the second longitudinal polarized light is basically unchanged, the color liquid crystal display substrate (not shown in the figure) loads the image to be displayed through the micro controller module (not shown in the figure), and the second longitudinal polarized light 412 is modulated by the color liquid crystal display substrate (not shown in the figure) and then passes through the third polarizing plate 7 with longitudinal polarization to form the second emergent light 712, so that the loaded image can be directionally displayed.
Claims (8)
1. A multi-view full resolution autostereoscopic display screen, the multi-view full resolution autostereoscopic display screen having a plurality of views, characterized by: the device comprises a backlight module, a first polaroid, a black-and-white liquid crystal substrate, a second polaroid, a plano-convex cylindrical lens array plate, a color liquid crystal display substrate, a third polaroid and a microcontroller module;
The backlight module, the first polaroid, the black-and-white liquid crystal substrate, the second polaroid and the plano-convex cylindrical lens array plate are sequentially and tightly arranged, the plano-convex cylindrical lens array plate is provided with a flat plate surface and a convex cylindrical surface, the flat plate surface is tightly attached to the second polaroid, the convex cylindrical surface is provided with a plurality of vertical micro-cylindrical lenses which are arranged next to each other, the focal point of each vertical micro-cylindrical lens is positioned on the flat plate surface, and the flat plate surface faces towards the second polaroid;
The plano-convex cylindrical lens array plate, the color liquid crystal display substrate and the third polaroid are sequentially arranged, the convex cylindrical surface is arranged towards the color liquid crystal display substrate, the distance between the highest position of the convex cylindrical surface and the color liquid crystal display substrate is 0-5mm, and the color liquid crystal display substrate and the third polaroid are closely arranged;
the microcontroller module is respectively and electrically connected with the black-and-white liquid crystal substrate and the color liquid crystal display substrate; the refreshing frequency of the color liquid crystal display substrate is consistent with that of the black and white liquid crystal substrate;
The backlight module is provided with a white light LED backlight module, a diffusion sheet and a brightness enhancement film, and the color liquid crystal display substrate is a color liquid crystal display panel which comprises a color filter and does not comprise a polaroid;
the black-and-white liquid crystal substrate is provided with a plurality of groups of liquid crystal switch groups which are sequentially arranged, each group of liquid crystal switch groups is provided with a plurality of columns of liquid crystal switches, the number of the liquid crystal switches contained in each group of liquid crystal switch groups is consistent with the number of the view points, and each liquid crystal switch group corresponds to each plano-convex cylindrical lens on the plano-convex cylindrical lens array plate one by one;
The first polarizer and the third polarizer have the same polarization direction, and the second polarizer has a polarization direction orthogonal to the first polarizer.
2. The multi-view full resolution autostereoscopic display screen of claim 1, wherein: and black outer frames are arranged at the frame positions of the backlight module, the first polaroid, the black-and-white liquid crystal substrate, the second polaroid, the plano-convex cylindrical lens array plate, the color liquid crystal display substrate and the third polaroid.
3. The multi-view full resolution autostereoscopic display screen of claim 1, wherein: the refreshing frequency of the black-and-white liquid crystal substrate is 120Hz-240Hz.
4. The multi-view full resolution autostereoscopic display screen of claim 1, wherein: the polarization direction of the first polarizer is disposed along the longitudinal direction.
5. The multi-view full resolution autostereoscopic display screen of claim 1, wherein: the polarization direction of the first polarizer is arranged along the transverse direction.
6. The multi-view full resolution autostereoscopic display screen of claim 1, wherein: the number of viewpoints is 4.
7. The multi-view full resolution autostereoscopic display screen of claim 1, wherein: let the thickness of the biggest department of plano-convex cylindrical lens array plate thickness be T, the straight line distance of viewpoint and the third polaroid be S, let the interval of two adjacent plano-convex cylindrical lenses on the plano-convex cylindrical lens array plate be P, let the width of every group of liquid crystal switch group be h, then S, T, P and h satisfy the following relation:
8. the multi-view full resolution autostereoscopic display screen of claim 1, wherein: the width of the column liquid crystal switch is smaller than 0.3mm.
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