CN107422520A - A kind of specular removal quick response 3D projection screens and method - Google Patents
A kind of specular removal quick response 3D projection screens and method Download PDFInfo
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- CN107422520A CN107422520A CN201710742578.8A CN201710742578A CN107422520A CN 107422520 A CN107422520 A CN 107422520A CN 201710742578 A CN201710742578 A CN 201710742578A CN 107422520 A CN107422520 A CN 107422520A
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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
-
- 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
-
- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
-
- 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
- G02F1/1347—Arrangement 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B35/00—Stereoscopic photography
- G03B35/18—Stereoscopic photography by simultaneous viewing
- G03B35/26—Stereoscopic photography by simultaneous viewing using polarised or coloured light separating different viewpoint images
-
- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention provides a kind of specular removal quick response 3D projection screens and method, and described 3D projection screens include 1#LCD liquid crystal displays, 2#LCD liquid crystal displays, 3#LCD liquid crystal displays；Coordinate 3 light path 3D optical projection systems using 3 groups of specular removal quick response projection screens, it effectively make use of the emergent light (P light and S light after Amici prism) of all directions of projecting apparatus, to realize that S light is changed to P light directions, 2 floor heights are employed through high polarization polaroid+1 layer 1/2 λ compensation films or 1/2 λ LCD screens, serve light path converting and filtering functions.Compensating film or 1/2 λ LCD screens using 1/2 λ, that S light is converted into P light is in the same direction, and S light is effectively utilized, improves the light efficiency of 3D optical projection systems.
Description
Technical field
The present invention relates to lcd technology and its key manufacturing technology technical field, more particularly to a kind of specular removal is quick
Respond 3D projection screens and method.
Background technology
In stereoscopic display product, the 3D Projection Displays using polarising glass are current main products.On the one hand, adopt at present
Single light path projection system used in the technology of stereoprojection is realized with one projector, due to having masked in natural light
S light, P light is only make use of, cause utilization rate very low, light efficiency is poor, and the contrast of black state and on state of is low, makes the display quality of 3D pictures
Decline.
On the other hand because 3D projection screen response speeds are slow, it is impossible to match 3D pictures and change at a high speed, cause light loss, on state of
There is crosstalk in transmitance deficiency, black state blackness deficiency, 3D rendering so that 3D image qualities decline.
Accordingly, it is desirable to provide the OCB type crystal projection screens of the quick response of 1 group of corresponding P light, and two groups of corresponding S light is fast
The OCB type crystal projection screens of speed response, coordinate three light path systems, to solve the above problems.
The content of the invention
In order to solve problem described in background technology, the present invention provides a kind of specular removal quick response 3D projection screens and side
Method, coordinate 3 light path 3D optical projection systems using 3 groups of specular removal quick response projection screens, effectively make use of each side of projecting apparatus
To emergent light (P light and S light after Amici prism), to realize that S light is changed to P light directions, employ 2 floor heights through high partially
The λ of polaroid+1 layer 1/2 that shakes compensates film or 1/2 λ LCD screens, serves light path converting and filtering functions.Film or 1/ is compensated using 1/2 λ
It is in the same direction that S light is converted to P light by 2 λ LCD screens, and S light is effectively utilized, improves the light efficiency of 3D optical projection systems.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of specular removal quick response 3D projection screens, including 1#LCD liquid crystal displays, 2#LCD liquid crystal displays, 3#LCD liquid crystal displays；
The direction of propagation of the described 1#LCD liquid crystal displays along light includes successively：First OCB liquid crystal displays, the 2nd OCB liquid crystal
Screen, the first OCB liquid crystal displays are opposite with the direction of rotation of the emergent light of the 2nd OCB liquid crystal displays；
Described 2#LCD liquid crystal displays, 3#LCD LCD structures are identical, include successively along the direction of propagation of light：1/2 λ is mended
Repay film or 1/2 λ LCD screens, polaroid, the first OCB liquid crystal displays, the 2nd OCB liquid crystal displays, the first OCB liquid crystal displays and the 2nd OCB liquid crystal
The direction of rotation of the emergent light of screen is opposite.
It can also increase polaroid before first OCB liquid crystal displays of described 1#LCD liquid crystal displays.
It can also increase polaroid before described 2#LCD liquid crystal displays and the first OCB liquid crystal displays of 3#LCD liquid crystal displays.
In use, 2#LCD liquid crystal displays and 3#LCD liquid crystal displays are arranged in 1#LCD liquid crystal displays both sides；By three light paths polarization point
After light prism is arranged at projecting apparatus, reflecting element is arranged in three light path polarization splitting prism both sides；
Three light path polarization splitting prisms and reflecting element are by the timing diagram that projector projects go out as polarization signal light is divided into transmission
The first light path the first linearly polarized light-P light, reflection the second light path the second linearly polarized light and the 3rd light path the second line it is inclined
Shake light-S light, and the second light path is identical with the polarization state of the linearly polarized light of the 3rd light path, is all the second linearly polarized light-S light, the first light
Route polarised light-P light matches with the first light path OCB projection screen systems, the 2nd the 3rd light path linearly polarized light-S light and the 2nd the 3rd
Light path OCB projection screen systems match.
A kind of method of manufacturing technology of specular removal quick response 3D projection screens, including：
1. using the OCB liquid crystal display manufacturing technologies of fast response time, box thickness≤3.5um, make response speed faster；
2. use OCB liquid crystal, the pre-tilt angle of quick response>6 ° of high pre-tilt angle PI oriented layers, response speed is reduced to
Below 350 μ S；
3. being superimposed using double OCB liquid crystal displays, left circularly polarized light and right-circularly polarized light are emitted respectively；
4. use high-contrast polaroid, degree of polarization>99.9%, light transmittance>43.0%., can be with to increase light utilization efficiency
Increase antireflection film on polaroid surface；
5. 1#LCD liquid crystal displays attach 1 layer of polaroid, polaroid light transmission shaft and the first light path-P parallel lights；
6. 2#, 3#LCD liquid crystal display attach 2 layers of polaroid and one layer of 1/2 λ compensation film, first layer polaroid light transmission shaft and the
Two light path-S parallel lights, second layer polaroid light transmission shaft and P parallel lights, 1/2 λ compensation films are attached among 2 layers of polaroid；
7. 1#, 2#, 3#LCD liquid crystal display each use containing the vertical OCB light valves of 2 pieces of frictional directions, 2 pieces of OCB light valves
Glue is bonded.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, a kind of specular removal quick response 3D projection screens of the invention, 3 are coordinated using 3 groups of specular removal quick response projection screens
Light path 3D optical projection systems, it effectively make use of the emergent light (P light and S light after Amici prism) of all directions of projecting apparatus.
2nd, a kind of specular removal quick response 3D projection screens of the invention, to realize that S light is changed to P light directions, 2 layers are employed
High polarization polaroid+1 layer 1/2 λ compensation films of high transmission or 1/2 λ LCD screens, serve light path converting and filtering functions.
3rd, a kind of specular removal quick response 3D projection screens of the invention, film or 1/2 λ LCD screens is compensated using 1/2 λ and turns S light
It is in the same direction to be changed to P light, S light is effectively utilized.
4th, a kind of specular removal quick response 3D projection screens of the invention, specular removal, luminance raising improve aobvious close to 1 times
Show quality；The contrast for right and left eyes of knowing clearly is lifted, reduces crosstalk；Fast response time, light loss is reduced, reduce crosstalk.
5th, a kind of specular removal quick response 3D projection screens of the invention, 3D crosstalks is reduced, realize excellent 3D display effect.
Wherein liquid crystal display, which has, is made simply, and efficiency of light energy utilization height, the good spy of 3D effect are matched with three light path stereo projection systems
Point.
Brief description of the drawings
Fig. 1 is a kind of specular removal quick response 3D projection screens 1#LCD LCD structure schematic diagrames of the present invention；
Fig. 2 shows for a kind of specular removal quick response 3D projection screen 2#LCD liquid crystal displays, the 3#LCD LCD structures of the present invention
It is intended to；
Fig. 3 is a kind of three light path projection system fundamental diagrams of specular removal quick response 3D projection screens of the present invention；
Fig. 4 is a kind of the first light path OCB System Working Principle figures of specular removal quick response 3D projection screens of the present invention；
Fig. 5 is a kind of the second light path OCB System Working Principle figures of specular removal quick response 3D projection screens of the present invention.
Embodiment
Embodiment provided by the invention is described in detail below in conjunction with accompanying drawing.
A kind of specular removal quick response 3D projection screens, including 1#LCD liquid crystal displays, 2#LCD liquid crystal displays, 3#LCD liquid crystal displays；
As shown in figure 1, the direction of propagation of the described 1#LCD liquid crystal displays along light includes successively：Polaroid is (because of Amici prism
Emergent light is just linearly polarized light, so this layer of polaroid can also remove, it is that blackness drops when liquid crystal display works to have the advantages of polaroid
Low, crosstalk is more preferable, but shortcoming be brightness have loss decline), the first OCB liquid crystal displays (left-handed screen or dextrorotation screen), the 2nd OCB liquid crystal
Shield (left-handed screen or dextrorotation screen), the first OCB liquid crystal displays are opposite with the direction of rotation of the emergent light of the 2nd OCB liquid crystal displays；
As shown in Fig. 2 described 2#LCD liquid crystal displays, 3#LCD LCD structures are identical, along the direction of propagation of light successively
Including：Polaroid (because Amici prism emergent light is just linearly polarized light, so this layer of polaroid can also remove, there is the excellent of polaroid
Blackness reduces when point is liquid crystal display work, and crosstalk is more preferable, but shortcoming is that brightness has loss to decline), 1/2 λ compensation films or 1/2 λ LCD
Screen, polaroid, the first OCB liquid crystal displays (left-handed screen or dextrorotation screen), the 2nd OCB liquid crystal displays (left-handed screen or dextrorotation screen), the first OCB
Liquid crystal display is opposite with the direction of rotation of the emergent light of the 2nd OCB liquid crystal displays.
Described OCB liquid crystal displays include：Upper piece ito glass, bottom sheet ito glass, liquid crystal layer, PI oriented layers and frame layer.
As shown in figure 3, in use, 2#LCD liquid crystal displays and 3#LCD liquid crystal displays are arranged in 1#LCD liquid crystal displays both sides；By three
After light path polarization splitting prism is arranged at projecting apparatus, reflecting element is arranged in three light path polarization splitting prism both sides；
Three light path polarization splitting prisms and reflecting element are by the timing diagram that projector projects go out as polarization signal light is divided into transmission
The first light path the first linearly polarized light-P light, reflection the second light path the second linearly polarized light and the 3rd light path the second line it is inclined
Shake light-S light, and the second light path is identical with the polarization state of the linearly polarized light of the 3rd light path, is all the second linearly polarized light-S light, the first light
Route polarised light-P light matches with the first light path OCB projection screen systems, the 2nd the 3rd light path linearly polarized light-S light and the 2nd the 3rd
Light path OCB projection screen systems match.
Three light path systems coordinate with separate unit stereo projector, by projector's output signal frequency, drive three groups each two respectively
Individual OCB liquid crystal displays, it is respectively left-handed rotatory polarization and dextrorotation rotatory polarization to make outgoing signal, and three groups of light synthesis realize that high-light-energy utilizes
Rate.Matched with 3D glasses, the dark-state for forming the on state of of display and not showing, realize that stereo-picture is shown.
3 groups of specular removal quick response projection screens of the present invention coordinate 3 light path 3D optical projection systems, effectively make use of projecting apparatus
All directions emergent light (P light and S light after Amici prism).
To realize that S light is changed to P light directions, 2 floor heights are employed through high polarization polaroid+1 layer 1/2 λ compensation films or 1/2
λ LCD screens, serve light path converting and filtering functions.
Compensating film or 1/2 λ LCD screens using 1/2 λ, that S light is converted into P light is in the same direction, and S light is effectively utilized.
As shown in figure 4, the first light path OCB projection screen system operation principles are：
1. during no-voltage：First light path linearly polarized light (P light) through polaroid, it is inclined through left-handed circle is changed into after left-handed OCB
Light, linearly polarized light is become again after being then passed through dextrorotation OCB, through 3D glasses, no 3D display effect.
2. when left-handed OCB high voltages, dextrorotation OCB low-voltages, the first light path linearly polarized light (P light) passes through polaroid, passes through
It is constant after left-handed OCB, it is changed into dextrorotation rotatory polarization after being then passed through dextrorotation OCB, is matched with the left-handed rotatory polarization of 3D glasses, light is inhaled
Receive；Matched with the dextrorotation rotatory polarization of 3D glasses, light passes through.
3. when left-handed OCB low-voltages, dextrorotation OCB high voltages, the first light path linearly polarized light (P light) passes through polaroid, passes through
It is changed into left-handed rotatory polarization after left-handed OCB, is then passed through constant after dextrorotation OCB, is matched with the left-handed rotatory polarization of 3D glasses, light is worn
Cross；Matched with the dextrorotation rotatory polarization of 3D glasses, light is absorbed.
As shown in figure 5, the second light path OCB projection screen system operation principles are：
1. during no-voltage：Second light path linearly polarized light (S light) passes through polaroid, and film or 1/2 λ LCD screens are compensated through 1/2 λ
After be changed into the first light path linearly polarized light (P light), filtered by polaroid, through left-handed OCB after be changed into left-handed rotatory polarization, then wear
Linearly polarized light is become again after crossing dextrorotation OCB, through 3D glasses, no 3D display effect.
2. when left-handed OCB high voltages, dextrorotation OCB low-voltages, the second light path linearly polarized light (S light) passes through polaroid, passes through
1/2 λ is changed into the first light path linearly polarized light (P light) after compensating film or 1/2 λ LCD screens, is filtered by polaroid, through left-handed OCB
It is constant afterwards, it is changed into dextrorotation rotatory polarization after being then passed through dextrorotation OCB, is matched with the left-handed rotatory polarization of 3D glasses, light is absorbed；With 3D
The dextrorotation rotatory polarization matching of glasses, light pass through.
3. when left-handed OCB low-voltages, dextrorotation OCB high voltages, the second light path linearly polarized light (S light) passes through polaroid, passes through
1/2 λ is changed into the first light path linearly polarized light (P light) after compensating film or 1/2 λ LCD screens, is filtered by polaroid, through left-handed OCB
After be changed into left-handed rotatory polarization, be then passed through constant after dextrorotation OCB, matched with the left-handed rotatory polarization of 3D glasses, light passes through；With 3D eyes
The dextrorotation rotatory polarization matching of mirror, light are absorbed.
A kind of method of manufacturing technology of specular removal quick response 3D projection screens, including：
1. using the OCB liquid crystal display manufacturing technologies of fast response time, box thickness≤3.5um, make response speed faster；
2. use OCB liquid crystal, the pre-tilt angle of quick response>6 ° of high pre-tilt angle PI oriented layers, response speed is reduced to
Below 350 μ S；
3. being superimposed using double OCB liquid crystal displays, left circularly polarized light and right-circularly polarized light are emitted respectively；
4. use high-contrast polaroid, degree of polarization>99.9%, light transmittance>43.0%., can be with to increase light utilization efficiency
Increase antireflection film on polaroid surface；
5. 1#LCD liquid crystal displays attach 1 layer of polaroid, polaroid light transmission shaft and the first light path-P parallel lights；
6. 2#, 3#LCD liquid crystal display attach 2 layers of polaroid and one layer of 1/2 λ compensation film, first layer polaroid light transmission shaft and the
Two light path-S parallel lights, second layer polaroid light transmission shaft and P parallel lights, 1/2 λ compensation films are attached among 2 layers of polaroid；
7. 1#, 2#, 3#LCD liquid crystal display each use containing the vertical OCB light valves of 2 pieces of frictional directions, 2 pieces of OCB light valves
Glue is bonded.
The specular removal quick response 3D projection screens of the present invention mainly have following characteristic：
1st, specular removal, luminance raising improve display quality close to 1 times.
2nd, the contrast for right and left eyes of knowing clearly is lifted, reduces crosstalk.
3rd, fast response time, light loss is reduced, reduces crosstalk.
Above example is implemented under premised on technical solution of the present invention, gives detailed embodiment and tool
The operating process of body, but protection scope of the present invention is not limited to the above embodiments.Method therefor is such as without spy in above-described embodiment
It is conventional method not mentionlet alone bright.
Claims (5)
1. a kind of specular removal quick response 3D projection screens, it is characterised in that including 1#LCD liquid crystal displays, 2#LCD liquid crystal displays, 3#LCD
Liquid crystal display；
The direction of propagation of the described 1#LCD liquid crystal displays along light includes successively：First OCB liquid crystal displays, the 2nd OCB liquid crystal displays, the
One OCB liquid crystal displays are opposite with the direction of rotation of the emergent light of the 2nd OCB liquid crystal displays；
Described 2#LCD liquid crystal displays, 3#LCD LCD structures are identical, include successively along the direction of propagation of light：1/2 λ compensates film
Or 1/2 λ LCD screen, polaroid, the first OCB liquid crystal displays, the 2nd OCB liquid crystal displays, the first OCB liquid crystal displays and the 2nd OCB liquid crystal displays
The direction of rotation of emergent light is opposite.
A kind of 2. specular removal quick response 3D projection screens according to claim 1, it is characterised in that described 1#LCD liquid
It can also increase polaroid before first OCB liquid crystal displays of crystalline substance screen.
A kind of 3. specular removal quick response 3D projection screens according to claim 1, it is characterised in that described 2#LCD liquid
It can also increase polaroid before first OCB liquid crystal displays of crystalline substance screen and 3#LCD liquid crystal displays.
A kind of 4. application method of specular removal quick response 3D projection screens described in claim 1, it is characterised in that in use,
2#LCD liquid crystal displays and 3#LCD liquid crystal displays are arranged in 1#LCD liquid crystal displays both sides；Three light path polarization splitting prisms are arranged at throwing
After shadow instrument, reflecting element is arranged in three light path polarization splitting prism both sides；
Three light path polarization splitting prisms and reflecting element are by the timing diagram that projector projects go out as polarization signal light is divided into the of transmission
First linearly polarized light-P light of one light path, the second linearly polarized light of the second light path and the second linear polarization of the 3rd light path of reflection
Light-S light, the second light path is identical with the polarization state of the linearly polarized light of the 3rd light path, is all the second linearly polarized light-S light, the first light path
Linearly polarized light-P light matches with the first light path OCB projection screen systems, the 2nd the 3rd light path linearly polarized light-S light and the 2nd the 3rd light
Road OCB projection screen systems matching.
A kind of 5. method of manufacturing technology of specular removal quick response 3D projection screens described in claim 1, it is characterised in that bag
Include：
1. using the OCB liquid crystal display manufacturing technologies of fast response time, box thickness≤3.5um, make response speed faster；
2. use OCB liquid crystal, the pre-tilt angle of quick response>6 ° of high pre-tilt angle PI oriented layers, response speed is reduced to 350 μ S
Below；
3. being superimposed using double OCB liquid crystal displays, left circularly polarized light and right-circularly polarized light are emitted respectively；
4. use high-contrast polaroid, degree of polarization>99.9%, light transmittance>43.0%, can be inclined to increase light utilization efficiency
Mating plate surface increases antireflection film；
5. 1#LCD liquid crystal displays attach 1 layer of polaroid, polaroid light transmission shaft and the first light path-P parallel lights；
6. 2#, 3#LCD liquid crystal display attach 2 layers of polaroid and one layer of 1/2 λ compensation film, first layer polaroid light transmission shaft and the second light
Road-S parallel lights, second layer polaroid light transmission shaft and P parallel lights, 1/2 λ compensation films are attached among 2 layers of polaroid；
7. 1#, 2#, 3#LCD liquid crystal display each use glue containing the vertical OCB light valves of 2 pieces of frictional directions, 2 pieces of OCB light valves
Fitting.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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