CN106833679A - The preparation method of the holographic 3D display screens of CdSe quantum dots doped liquid crystal material - Google Patents
The preparation method of the holographic 3D display screens of CdSe quantum dots doped liquid crystal material Download PDFInfo
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- CN106833679A CN106833679A CN201611123179.5A CN201611123179A CN106833679A CN 106833679 A CN106833679 A CN 106833679A CN 201611123179 A CN201611123179 A CN 201611123179A CN 106833679 A CN106833679 A CN 106833679A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 112
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical class [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000000463 material Substances 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 37
- 239000011521 glass Substances 0.000 claims abstract description 44
- 238000001093 holography Methods 0.000 claims abstract description 23
- 239000012769 display material Substances 0.000 claims abstract description 17
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- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 5
- 229920002799 BoPET Polymers 0.000 claims description 4
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 claims description 4
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- 239000002105 nanoparticle Substances 0.000 claims description 4
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- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims 2
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 claims 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims 1
- 238000000205 computational method Methods 0.000 claims 1
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- RHZWSUVWRRXEJF-UHFFFAOYSA-N indium tin Chemical compound [In].[Sn] RHZWSUVWRRXEJF-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/58—Dopants or charge transfer agents
- C09K19/582—Electrically active dopants, e.g. charge transfer agents
-
- 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
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
Abstract
The invention discloses a kind of preparation method of the holographic 3D display screens of CdSe quantum dots doped liquid crystal material, according to a certain percentage, CdSe quantum dots are mixed in the middle of liquid crystal, and then forms holographic material, form holography 3D display screens in two panels ito glass is injected material into afterwards.The present invention is prepared for CdSe quantum dots and mixes liquid crystal and form holographic material, and system comes from laser from object light and reference light, reads light and comes from visible ray.Holographic display material prepared by the present invention provides carrier for holographic true 3D shows, so that the material has dynamic refresh characteristic in holographic display system, improve diffraction efficiency, shorten the response time, holographic 3D display screens can apply to the fields such as hologram printing, holographic optical disk, real-time dynamic holographic display, holographic.
Description
Technical field
The present invention relates to a kind of preparation method of LCDs, more particularly to a kind of preparation method of 3D display screens,
The preparation method of holographic media always is further related to, electro-luminescence display device technical field is applied to.
Background technology
Liquid crystal is an interphase being between crystalline solid and isotropic liquid.In a certain temperature range, place
Both there is the anisotropy similar to crystal in the liquid crystal material of liquid crystalline phase, and with the mobility as common liq.Liquid crystal
Anisotropy is shown, is the slender rod shaped molecular structure due to it, this structure is caused in the axial direction of molecule and perpendicular to molecule
There is different physical characteristics in axially direction.By in recent years to liquid crystal photorefractive characteristics in terms of progress can see
Go out, quantum dot mixes liquid crystal and the non-linear of liquid crystal is greatly improved, and this causes liquid crystal applications in optical Information Processing, holography
The aspects such as storage have important Research Significance.Simultaneously as quanta point material is current study hotspot, have compared with body material
There are the physical properties such as quantum size effect, the skin effect of uniqueness.Existing holographic 3D display materials diffraction efficiency is low, during response
Between it is long, performance is not ideal enough, it is impossible to the need for adapting to new display product industry development.
CdSe quantum dots are the nano materials of quasi-zero dimension, are made up of a small amount of atom.In general, quantum dot three
The size of dimension all in Nano grade, just like a minimum pointing object, motion of its internal electron in all directions all receive by outward appearance
To limitation, so quantum confined effect is particularly significant.Scientist has invented many different methods to manufacture quantum dot, and in advance
Phase this nano material has great application potential in the nanoelectronics of 21st century, but yet there are no cadmium selenide
Quantum dot is applied to the record of 3D display screens.
The content of the invention
In order to solve prior art problem, it is an object of the invention to overcome the shortcomings of that prior art is present, there is provided a kind of
The preparation method of the holographic 3D display screens of CdSe quantum dots doped liquid crystal material, can prepare CdSe quantum dots doped liquid crystal material
Material, forms holography 3D display mediums, i.e., show material by changing holographic 3D by necessarily the liquid crystal containing quantum dot is configured than row
The dielectric constant of material, and uniqueness the physical property such as quantum size effect, skin effect, spreading out for holographic display material can be made
Penetrate efficiency to be improved, response speed accelerates, the good holographic 3D display screens of final processability.
Purpose is created to reach foregoing invention, the present invention uses following technical proposals：
A kind of preparation method of the holographic 3D display screens of CdSe quantum dots doped liquid crystal material, comprises the following steps：
(1) preparation of CdSe quantum dots doped liquid crystal material：
When the CdSe quantum dots that adulterated in liquid crystal prepare holography 3D display screen materials, according to percentage by weight calculating side
Method, the doping part by weight of CdSe quantum dots is 0.01~10%, and liquid crystal gross weight is 90~99.99%.By quantum dot plus
Liquid crystal solution is formed after entering liquid crystal, the liquid crystal solution for preparing for obtaining is well mixed, obtain quantum dot-doped liquid crystal hologram
3D display material mixed liquors；Used as currently preferred technical scheme, institute is by a limited number of original using CdSe quantum dots
Son composition, the greatest diametrical dimension of CdSe quantum dots is 0.2~900nm, and three dimensions are in nanometer scale；As
Currently preferred technical scheme, the CdSe quantum dots for being used are three dimension systems of spherical or spherical grade, cadmium selenide
The nano-particle being also made containing the semi-conducting material being made up of IIB~VI A or IIIA~VA element in quantum dot；As this hair
Bright preferred technical scheme, the material of liquid crystal can be smectic liquid crystal, cholesteric liquid crystal, nematic liquid crystal；Mixed in liquid crystal
Miscellaneous CdSe quantum dots, the liquid crystal solution that will be prepared is well mixed, and CdSe quantum dots is dissolved in liquid crystal and reaches saturation shape
State；
(2) preparation of liquid crystal cell：
A. using the glass with ITO conducting films as ito glass substrate, ITO is a kind of N-type oxide semiconductor-oxygen
Change indium tin, ito thin film is indium tin oxide transparent conductive semiconductor film, and ito glass substrate is cut into the size of setting, pass through
Cleaning, ultrasound, baking link, purifying treatment is carried out by ito glass substrate, clean ito glass substrate is taken out into two panels,
It is even to coat the polyvinyl alcohol organic solution that mass percent concentration is not less than 0.01-2wt.%, form poly- second in ito glass substrate
Enol coating, places into oven for baking, solidifies the polyethylene coating of ito glass substrate surface；
B. ito glass substrate of the baked two panels with polyethylene coating is taken out, then by two panels ito glass substrate
Between be encased inside mylar, and control gap thickness between two panels ito glass substrate, form the liquid crystal with slit chamber structure
Box；It is preferred that by the thickness for adjusting the thickness of polyester film to determine liquid crystal cell；
(3) preparation of holography 3D display screens：
I takes holographic 3D displays screen material using the holographic 3D display materials mixed liquor prepared in the step (1)
The supernatant of mixed liquor, using capillary drainage method, the supernatant of holographic 3D display materials mixed liquor is poured into the step
(2) in the slit chamber of the liquid crystal cell prepared in b step, in liquid crystal cell so that be at liquid crystal and glass interface the
One layer of liquid crystal molecule proper alignment in a specified direction, obtains liquid crystal micro unit；
A series of liquid crystal micro units prepared in the step I are combined to form CdSe quantum dots doped liquid crystal by II
Holographic 3D display screens.
Used as currently preferred technical scheme, in holographic 3D display screens preparation process, be maintained at room temperature dries ring
Under border.
The present invention compared with prior art, substantive distinguishing features and remarkable advantage is obviously protruded with following：
1. the present invention is prepared for CdSe quantum dots and mixes nematic liquid crystal and form holographic material, is that holographic true 3D shows and carries
For carrier, it is aobvious that holographic 3D display screens prepared by the present invention are widely used in hologram printing, holographic optical disk, real-time dynamic holographic
Show, holographic that there is significant application prospect in holographic imaging technical field；
2. the preparation method of CdSe quantum dots doped liquid crystal holography 3D display materials of the present invention, operating process is simple, light
The appearance of a street is easily realized, is subsequently to realize that dynamic image refreshes to lay the foundation；
3. the CdSe quantum dots doped liquid crystal holography 3D display materials that prepared by the present invention improve raising holography 3D and show
The diffraction efficiency of material and response time, are to do large scale, the big depth of field, high-resolution holographic 3D display screens the later stage to have laid base
Plinth.
Brief description of the drawings
Fig. 1 is that holographic 3D display applications prepared by the method for the embodiment of the present invention one show in two-beam coupling light path holography 3D
The fundamental diagram of system.
Fig. 2 is that CdSe quantum dots doped liquid crystal prepared by the method for the embodiment of the present invention one is responded under voltage driving effect
Curve, wherein, Fig. 2 (a) be hologram setup time curve, the response time be 50ms~1s, Fig. 2 (b) for hologram clash when
Half interval contour, the response time is 50ms~1s.
Fig. 3 is that holographic 3D display applications prepared by the method for the embodiment of the present invention one show in two-beam coupling light path holography 3D
During system, optical diffraction spot image is read in receiving screen.
Specific embodiment
Details are as follows for the preferred embodiments of the present invention：
Embodiment one：
In the present embodiment, referring to Fig. 1~3, a kind of holographic 3D display screens of CdSe quantum dots doped liquid crystal material
Preparation method, comprises the following steps：
(1) preparation of CdSe quantum dots doped liquid crystal material：
When the CdSe quantum dots that adulterated in liquid crystal prepare holography 3D display screen materials, according to percentage by weight calculating side
Method, the doping part by weight of CdSe quantum dots is 0.01~10%, and liquid crystal gross weight is 90~99.99%.By quantum dot plus
Liquid crystal solution is formed after entering liquid crystal, the liquid crystal solution for preparing for obtaining is put into ultrasonic activation instrument and is shaken, be sufficiently mixed
Uniformly, quantum dot is preferably incorporated in liquid crystal, at least stands two days afterwards, obtain quantum dot-doped liquid crystal hologram 3D displays material
Material mixed liquor；Institute is made up of using CdSe quantum dots a limited number of atom, and the diameter dimension of CdSe quantum dots is 0.2
~900nm；The CdSe quantum dots for being used are three spherical dimension systems, are also contained by IIB~VI A in CdSe quantum dots
Element composition the nano-particle that is made of semi-conducting material；The material of liquid crystal can for smectic liquid crystal, cholesteric liquid crystal, to
Row phase liquid crystal；Adulterate CdSe quantum dots in liquid crystal, and the liquid crystal solution that will be prepared is well mixed, and makes CdSe quantum dots molten
In liquid crystal and reach saturation state；
(2) preparation of liquid crystal cell：
A. one layer of glass of frivolous ITO conducting films is carried as ito glass substrate using one side, with absorbent cotton in clear water
It is middle to scrub ito glass piece, carry out ultrasonic oscillation 30 during fritter ito glass then is successively placed on into alcohol and pure water
More than minute, after ultrasound terminates, glass is taken out, be put into drying in baking box, ito glass substrate is carried out into purifying treatment, will be clean
Net ito glass substrate takes out two panels, is uniformly coated with the polyvinyl alcohol that one layer of mass percent concentration is not less than 0.01-2wt.%
(PVA) organic solution, polyethylene coating is formed in ito glass substrate, places into oven for baking drying, makes ito glass base
The polyethylene coating solidification on piece surface, the glass bar that lens wiping paper will be surrounded by afterwards is carried out to the ito glass for scribbling polyvinyl alcohol
Equidirectional friction 1 to 2 times, can so form groove；
B. ito glass substrate of the baked two panels with polyethylene coating is taken out, then polyvinyl alcohol will be scribbled
The conductive one side of ito glass substrate energy is overlapped, and two panels ito glass substrate is encased inside into polyester between the both sides in groove direction
Film, and gap thickness between two panels ito glass substrate is controlled, the liquid crystal cell with slit chamber structure is formed, it is encased inside mylar
It is that injection material provides gap in order to after, will be left behind the convenient material injection that will be prepared in suitable gap wherein, this also determines
Thickness of the material in sample box is determined；
(3) preparation of holography 3D display screens：
I takes holographic 3D displays screen material using the holographic 3D display materials mixed liquor prepared in the step (1)
The supernatant of mixed liquor, using capillary drainage method, the supernatant of holographic 3D display materials mixed liquor is poured into along groove
It is each to different due to liquid crystal molecule in liquid crystal cell in the slit chamber of the liquid crystal cell prepared in the b step of the step (2)
Property characteristic, it causes to be in ground floor liquid crystal molecule at liquid crystal and glass interface with the tension force effect of glass surface by specific
Direction proper alignment, obtains liquid crystal micro unit；
A series of liquid crystal micro units prepared in the step I are combined to form CdSe quantum dots doped liquid crystal by II
Holographic 3D display screens.
In the present embodiment, in holographic 3D display screens preparation process, it is maintained under the dry environment of temperature room temperature.
Experimental test and analysis：
The liquid crystal micro unit that the present embodiment is prepared is placed at ambient temperature, and electricity is applied at liquid crystal micro unit two ends
Pressure, the two-beam coupling light path measurement data in being read using principle of holography interference record diffraction.Object light and reference light in light path
From laser, read light and come from visible ray, laser is divided into object light and reference light by Amici prism, and object light and reference light exist together
Lead on the sample of voltage and interfered.Read with visible ray afterwards and diffraction spot occur, interference recording angular is 2-4 °.
The present embodiment fundamental diagram is as shown in figure 1, by holographic 3D display applications manufactured in the present embodiment in two ripple couplings
Closing light road holography 3D display systems, mainly include two one group of laser (1,2), one group of half-wave plate (6,8), Amici prisms 7,
Group reflective mirror (5,9,10,11,12), sample box 3 and receiving screen 4.Two-beam coupling light path holography 3D display systems are by laser 1
Send laser as laser, the light sent as visible ray by laser 2, laser by after half-wave plate 8, then through Amici prism
7 are divided into two beam laser, two beam laser of gained, and a branch of is object light, and another beam is reference light, object light again through another half-wave plate 6,
Now it is irradiated to together with reference light in liquid crystal micro unit, and comes from visible ray and shine directly into liquid crystal micro unit as light is read
In, make three-beam need to overlap to the same point of liquid crystal micro unit, can just see in receiving screen 4 and to read light institute diffraction out
Spot, as shown in figure 3, now measuring hologram setup time curve such as Fig. 2 (a) and hologram again clashes time graph such as Fig. 2
Result shown in (b), such as Fig. 2,
The present embodiment is based on the preparation of the holographic 3D display screens of CdSe quantum dots doped liquid crystal material.According to certain ratio
Example, CdSe quantum dots are mixed in the middle of nematic liquid crystal, and then form holographic material, are injecting material into two panels ITO glass afterwards
Holography 3D display screens are formed in glass.The present embodiment is prepared for CdSe quantum dots and mixes nematic liquid crystal and form holographic material,
System comes from laser from object light and reference light, reads light and comes from visible ray.Material is measured using the mode of two-beam coupling
Dynamic response curve and diffraction efficiency.
In sum, the present embodiment is by one kind obtained in CdSe quantum dots of being adulterated in traditional holographic display liquid crystal
New material, and cause that the material has dynamic refresh characteristic in holographic display system, diffraction efficiency is improve, shorten response
Time.Holographic display material manufactured in the present embodiment provides carrier for holographic true 3D shows, prepared holographic 3D display screens energy
It is widely used in hologram printing, holographic optical disk, real-time dynamic holographic display, holographic field.
Embodiment two：
The present embodiment is essentially identical with embodiment one, is particular in that：
In the present embodiment, the preparation method of the holographic 3D display screens of a kind of CdSe quantum dots doped liquid crystal material, bag
Include following steps：
(1) preparation of CdSe quantum dots doped liquid crystal material：
When the CdSe quantum dots that adulterated in liquid crystal prepare holography 3D display screen materials, according to percentage by weight calculating side
Method, the doping part by weight of CdSe quantum dots is 0.01~10%, and liquid crystal gross weight is 90~99.99%.By quantum dot plus
Liquid crystal solution is formed after entering liquid crystal, the liquid crystal solution for preparing for obtaining is put into oscillator and is shaken, be sufficiently mixed uniformly, extremely
Stand one day afterwards less, obtain quantum dot-doped liquid crystal hologram 3D display material mixed liquors；Institute using CdSe quantum dots be by
A limited number of atom composition, the diameter dimension of CdSe quantum dots is 0.2~900nm；The CdSe quantum dots for being used for
Three dimension systems of spherical or bar-shaped grade, also contain the semi-conducting material being made up of the element of IIIA~VA in CdSe quantum dots
The nano-particle being made；The material of liquid crystal can be smectic liquid crystal, cholesteric liquid crystal, nematic liquid crystal；Adulterated in liquid crystal
CdSe quantum dots, the liquid crystal solution that will be prepared is well mixed, and CdSe quantum dots is dissolved in liquid crystal and reaches saturation state；
(2) preparation of liquid crystal cell：
A. this step is identical with embodiment one；
B. this step is identical with embodiment one；
(3) preparation of holography 3D display screens：
I this step of is identical with embodiment one；
II this step of is identical with embodiment one.
In the present embodiment, in holographic 3D display screens preparation process, it is maintained under the dry environment of room temperature.
Experimental test and analysis：
The sample box that the present embodiment is prepared is placed at ambient temperature, in sample two ends applied voltage, using holography
Two-beam coupling light path measurement data in principle.Object light and reference light in light path come from laser, read light and come from visible ray, swash
Light is divided into object light and reference light by Amici prism, and object light and reference light are interfered on the sample for led to voltage together.It
Read with visible ray afterwards and diffraction spot occur.
The present embodiment by a kind of new material obtained in CdSe quantum dots that adulterated in traditional holographic display liquid crystal, and
So that the material has dynamic refresh characteristic in holographic display system, diffraction efficiency is improve, shorten the response time.This reality
Apply the holographic display material of example preparation and provide carrier for holographic true 3D shows, prepared holographic 3D display screens can be widely used in
Hologram printing, holographic optical disk, real-time dynamic holographic display, holographic field.
Embodiment three：
The present embodiment is substantially the same as in the previous example, and is particular in that：
In the present embodiment,
7. the preparation side of the holographic 3D display screens of CdSe quantum dots doped liquid crystal material according to claim 1 or claim 2
Method, it is characterised in that：In the b step of the step (2), by the thickness for adjusting the thickness of polyester film to determine liquid crystal cell
Degree.In the b step of the step (2), ito glass substrate of the baked two panels with polyethylene coating is taken out, then
Mylar will be encased inside between two panels ito glass substrate, and controls gap thickness between two panels ito glass substrate, formed with narrow
Stitch the liquid crystal cell of chamber structure.
Experimental test and analysis：
The sample box that the present embodiment is prepared is placed at ambient temperature, in sample two ends applied voltage, using holography
Two-beam coupling light path measurement data in principle.Object light and reference light in light path come from laser, read light and come from visible ray, swash
Light is divided into object light and reference light by Amici prism, and object light and reference light are interfered on the sample for led to voltage together.It
Read with visible ray afterwards and diffraction spot occur..
The present embodiment by a kind of new material obtained in CdSe quantum dots that adulterated in traditional holographic display liquid crystal, and
So that the material has dynamic refresh characteristic in holographic display system, diffraction efficiency is improve, shorten the response time.This reality
Apply the holographic display material of example preparation and provide carrier for holographic true 3D shows, prepared holographic 3D display screens can be widely used in
Hologram printing, holographic optical disk, real-time dynamic holographic display, holographic field.
The embodiment of the present invention is illustrated above in conjunction with accompanying drawing, but the invention is not restricted to above-described embodiment, can be with
The purpose of innovation and creation of the invention makes various changes, under all Spirit Essence and principle according to technical solution of the present invention
Change, modification, replacement, the combination or simplified made, should be equivalent substitute mode, as long as meeting goal of the invention of the invention,
Without departing from the know-why and invention structure of the preparation method of the holographic 3D display screens of CdSe quantum dots doped liquid crystal material
Think, belong to protection scope of the present invention.
Claims (6)
1. the preparation method of the holographic 3D display screens of a kind of CdSe quantum dots doped liquid crystal material, it is characterised in that including such as
Lower step：
(1) preparation of CdSe quantum dots doped liquid crystal material：
When the CdSe quantum dots that adulterated in liquid crystal prepare holography 3D display screen materials, according to percentage by weight computational methods, selenium
The doping part by weight of cadmium quantum dot is 0.01~10%, and liquid crystal gross weight is 90~99.99%, by CdSe quantum dots plus
Liquid crystal solution is formed after entering liquid crystal, the liquid crystal solution for preparing for obtaining is well mixed, obtain quantum dot-doped liquid crystal hologram
3D display material mixed liquors.
(2) preparation of liquid crystal cell：
A. ito glass substrate is cut into as ito glass substrate using the glass with ITO conducting films for the size of setting, is passed through
Over cleaning, ultrasound, baking link, purifying treatment is carried out by ito glass substrate, and clean ito glass substrate is taken out into two panels,
The polyvinyl alcohol organic solution that mass percent concentration is not less than 0.01-2wt.% is uniformly coated with, forms poly- in ito glass substrate
Vinyl alcohol coating, places into oven for baking, solidifies the polyethylene coating of ito glass substrate surface, and polyvinyl alcohol is applied
Layer is oriented the treatment such as friction；
B. take out the ito glass substrate of the two panels handled well with polyethylene coating, then by two panels ito glass substrate it
Between be encased inside mylar, and control gap thickness and differently- oriented directivity between two panels ito glass substrate, being formed has slit chamber structure
Liquid crystal cell；
(3) preparation of holography 3D display screens：
I takes holographic 3D displays screen material mixing using the holographic 3D display materials mixed liquor prepared in the step (1)
Liquid, using capillary drainage or other method, holographic 3D display materials mixed liquor is poured into and is made in the b step of the step (2)
In the slit chamber of standby liquid crystal cell, liquid crystal micro unit is obtained；
II combines a series of liquid crystal micro units prepared in the step I to form the holography of CdSe quantum dots doped liquid crystal
3D display screens.
2. the preparation method of the holographic 3D display screens of CdSe quantum dots doped liquid crystal material according to claim 1, it is special
Levy and be：In the step (1), institute is made up of using CdSe quantum dots a limited number of atom, CdSe quantum dots
Greatest diametrical dimension be 0.2~900nm.
3. the preparation method of the holographic 3D display screens of CdSe quantum dots doped liquid crystal material according to claim 1 or claim 2, its
It is characterised by：In the step (1), the CdSe quantum dots for being used are three spherical, spherical etc. dimension systems, selenizing
The nano-particle being also made containing the semi-conducting material being made up of IIB~VI A or IIIA~VA element in cadmium quantum dot.
4. the preparation method of the holographic 3D display screens of CdSe quantum dots doped liquid crystal material according to claim 1 or claim 2, its
It is characterised by：In the step (1), the material of liquid crystal can be smectic liquid crystal, cholesteric liquid crystal, nematic liquid crystal.
5. the preparation method of the holographic 3D display screens of CdSe quantum dots doped liquid crystal material according to claim 1 or claim 2, its
It is characterised by：In the step (1), adulterate CdSe quantum dots in nematic liquid crystal, the liquid crystal solution mixing that will be prepared
Uniformly, CdSe quantum dots is dissolved in nematic liquid crystal and reach saturation state.
6. the preparation method of the holographic 3D display screens of CdSe quantum dots doped liquid crystal material according to claim 1 or claim 2, its
It is characterised by：In the b step of the step (2), the thickness of liquid crystal cell is determined by the thickness of adjusting gasket film.
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