CN107728401A - Controllable liquid crystal lens of a kind of pitch and preparation method thereof - Google Patents
Controllable liquid crystal lens of a kind of pitch and preparation method thereof Download PDFInfo
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- CN107728401A CN107728401A CN201711006647.5A CN201711006647A CN107728401A CN 107728401 A CN107728401 A CN 107728401A CN 201711006647 A CN201711006647 A CN 201711006647A CN 107728401 A CN107728401 A CN 107728401A
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- liquid crystal
- driving electrodes
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- crystal lens
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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
- G02F1/29—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 position or the direction of light beams, i.e. deflection
-
- 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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133784—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by rubbing
-
- 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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
-
- 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
- G02F1/1341—Filling or closing of cells
Abstract
The present invention provides controllable liquid crystal lens of a kind of pitch and preparation method thereof, and the lens include one first key-course, one second key-course, a liquid crystal layer and a control module；The liquid crystal layer is arranged between the first key-course, the second key-course；The output of control module one is connected with the first key-course, and another output of control module is connected with the second key-course；First key-course includes one first transparency carrier, one first driving electrodes, one first insulating barrier, one second driving electrodes, a first orientation layer and one first high impedance layer；Second key-course includes one second transparency carrier, one the 3rd public electrode, one second high impedance layer and a second orientation layer.Compared with prior art, the present invention provides controllable liquid crystal lens of a kind of pitch and preparation method thereof, and the liquid crystal lens manufacture craft is simple, can not only realize liquid crystal lens focus adjustable, moreover it is possible to realizes that liquid crystal lens pitch is controllable, reaches dynamic liquid crystal lens effect.
Description
Technical field
The present invention relates to a kind of liquid crystal lens, controllable liquid crystal lens of more particularly to a kind of pitch and preparation method thereof.
Background technology
Two dimension（Two-dimension, 2D）Image information can bring picture clearly and coloury 2D visions
Effect, but the real world of people's existence is three-dimensional（There-dimension, 3D）, bidimensional image is due to that can not provide
Depth information or the anaglyph information of real world and human society demand can not be met.Reappear the real 3 D stereo world
It is mankind's dream, and is engaged in the target that Technological research personnel try hard to gain.3D image energies reappear depth information or anaglyph
Information, meet the visual custom that the mankind observe objective world.As 3D rendering acquisition of information and Display Technique continue to develop, people
Reproduction to deep image information or real world, it is existing to reduce or reappear to be doomed requirement 3D image informations substitution 2D image informations
The real world.People dispose optical spectroscopic device before sensor or display screen, without helping depending on equipment with regard to that can reappear 3D images letter
Breath, it can be widely applied to the fields such as amusement, medical treatment, military, education and business.In recent years, with optical spectroscopic device and image
The development for the treatment of technology, people obtain different 3D depth informations or display disparity map using Lenticular screen or microlens array
Picture, because simple in construction and reproduction performance boost is widely paid attention to.It is simultaneous and liquid crystal lens array can realize 2D/3D switching
Hold liquid crystal display technique, occupy important one seat in microscope and stereo display technique field
It is existing liquid crystal lens structure schematic diagram as shown in Figure 1.The structure includes the first key-course 10, second control 20, used
In the insulated column 30 and control module 50 that are enclosed in liquid crystal layer 40 between first orientation layer 103 and second orientation layer 203.Pass through
Control module 50 directly applies different voltages in public electrode 203 and driving electrodes 103, and the control deflection of liquid crystal molecule 40 forms burnt
Away from adjustable liquid crystal lens.The liquid crystal lens structure is simple, focus adjustable can be realized under applied voltage, while drive by mobile
Moving electrode position can realize that focussing plane moves；But liquid crystal lens driving electrodes internal electric field skewness, device drive
Voltage is high；Meanwhile because gap be present between the driving electrodes of available liquid crystal lens, lens pitch can not realize equidistant movement
With switching.
The content of the invention
In view of this, it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of controllable liquid crystal of pitch is saturating
Mirror and preparation method thereof, the liquid crystal lens manufacture craft is simple, can not only realize liquid crystal lens focus adjustable, moreover it is possible to realize liquid crystal
The equidistant seamless switching of the pitch of lens, reaches dynamic liquid crystal lens effect, so as to realize different anaglyphs or depth
Spend the acquisition of information.
The present invention uses following technical scheme：A kind of controllable liquid crystal lens of pitch, it includes one first key-course, one
Two key-courses, a liquid crystal layer and a control module；The liquid crystal layer is arranged between the first key-course, the second key-course；Control
The output of module one is connected with the first key-course, and another output of control module is connected with the second key-course；The first key-course bag
Include one first transparency carrier, one first driving electrodes, one first insulating barrier, one second driving electrodes, a first orientation layer and one
First high impedance layer；Second key-course include one second transparency carrier, one the 3rd public electrode, one second high impedance layer and
One second orientation layer.
In an embodiment of the present invention, the first driving electrodes staggered parallel is equidistantly arranged in the described first transparent base
Plate lower surface；First insulating barrier is arranged at the first driving electrodes lower surface；The second driving electrodes staggered parallel
Spaced set is in the first insulating barrier lower surface, and second driving electrodes are parallel with first driving electrodes staggeredly
Arrangement；The central point of second driving electrodes overlaps with the gap center point of first driving electrodes, second driving
The width of electrode is equal to the gap width of two neighboring first driving electrodes, the relief width of two neighboring second driving electrodes
Width of the degree equal to first driving electrodes；First high impedance layer is arranged at the second driving electrodes lower surface；Described
One oriented layer is arranged at the first high impedance layer lower surface.
In an embodiment of the present invention, the 3rd public electrode is face electrode, is arranged at second transparency carrier
Upper surface；Second high impedance layer is arranged at the 3rd public electrode upper surface；The second orientation layer is arranged at the second high resistant
Anti- layer upper surface.
In an embodiment of the present invention, the differently- oriented directivity of the first orientation layer and the first driving electrodes direction or institute
It is parallel to state the second driving electrodes direction；The differently- oriented directivity of the second orientation layer and the direction of the first orientation layer are antiparallel.
In an embodiment of the present invention, the control module controls several first driving electrodes and the 3rd public electrode；
The control module applies voltage between several first driving electrodes and the 3rd public electrode, forms pitch P=2KW
Liquid crystal lens, wherein K is natural number more than or equal to 1, and W is driving electrodes width；The control module is N number of by movement
The width of first driving electrodes, wherein N are natural number more than or equal to 1, is formed pitch be P=（2K+N）W liquid crystal is saturating
Mirror, so as to realize the controllable liquid crystal lens of pitch.
In an embodiment of the present invention, the control module controls several second driving electrodes and the 3rd common electrical
Pole, apply the liquid crystal lens that voltage forms pitch P=2KW between several second driving electrodes and the 3rd public electrode, wherein
K is the natural number more than or equal to 1, and W is driving electrodes width；The control module passes through the N number of first driving electricity of movement
The width of pole, wherein N are natural number more than or equal to 1, is formed pitch be P=（2K+N）W liquid crystal lens, so as to realize section
Away from controllable liquid crystal lens.
In an embodiment of the present invention, the control module controls several first driving electrodes and the 3rd common electrical
Pole controls several second driving electrodes and the 3rd public electrode, in the first driving electrodes and the 3rd public electrode
Between or the second driving electrodes and the 3rd public electrode between apply voltage formed pitch P=（2K+1）W liquid crystal lens,
Wherein K is natural number, and W is driving electrodes width；The control module passes through N number of first driving electrodes of movement or the second driving electricity
The width of pole, wherein N are natural number more than or equal to 1, is formed pitch be P=（2K+N+1）W liquid crystal lens, so as to realize
The controllable liquid crystal lens of pitch.
In an embodiment of the present invention, in addition to a sealing frame, it is arranged at first transparency carrier and described second saturating
Between bright substrate, for the liquid crystal layer to be enclosed between the first orientation layer and second orientation layer.
In an embodiment of the present invention, in addition to a substrate material, be arranged at the first orientation layer and second orientation layer it
Between, the spacing for ensuring the first orientation layer and second orientation layer is preset space length.
The preparation method that the present invention also provides a kind of controllable liquid crystal lens of above-mentioned pitch, it comprises the following steps：
S1：First key-course makes, and it specifically comprises the following steps：
S11：One transparent conducting glass is provided, scribing is carried out to the glass, cleaned, drying, first is made using photoetching technique and drives
Moving electrode；
S12：One thickness is deposited using magnetron sputtering, thermal evaporation or electron beam evaporation technique on the first driving electrodes surface of cleaning
Spend for 30-240 nanometer transparent insulating barriers；
S13：In transparent insulation layer surface, magnetron sputtering, thermal evaporation or electron beam evaporation technique is used to deposit a layer thickness as 50-
300 nanometer transparent conductive films, the second driving electrodes are made using photoetching technique；
S14：On the second driving electrodes surface of cleaning, magnetron sputtering or thermal evaporation techniques are used to deposit a layer thickness and received for 1-50
The high impedance layer of rice；
S15：Transparent material layer is made using spin coating, printing or inkjet technology on the high impedance layer surface of cleaning, through height
Orientation layer film is formed after temperature roasting, orientation layer film is taken along the first driving electrodes or the friction of the second driving electrodes direction
To formation first orientation layer；
S2:Second key-course makes, and it specifically comprises the following steps：
S21:One transparent conducting glass is provided, scribing is carried out to the glass, cleaned, drying, it is public to make the 3rd using photoetching technique
Common electrode；
S22:On the 3rd public electrode surface of cleaning, magnetron sputtering or thermal evaporation techniques are used to deposit a layer thickness and received for 1-50
The high impedance layer of rice；
S23:Transparent material layer is made using spin coating, printing or inkjet technology on the high impedance layer surface of cleaning, through height
Orientation layer film is formed after temperature roasting, by orientation layer film along first orientation layer opposite direction friction orientation, forms second orientation
Layer;
S3:Liquid crystal lens make, and it specifically comprises the following steps：
S31:Layer surface is controlled to use powder spraying apparatus to make thickness as 4-100 microns the second of cleaning, density 50-200/
mm2Septum pellucidum ion, the separaant is circular or square；
S32:Sealant is coated using printing or inkjet technology in the first key-course surrounding of cleaning；The thickness of the sealant
Thickness of the degree more than separaant；
S33:First key-course and the second key-course are pressed into oriented layer reversed alignment, sealant, which is melted, after 200 C to form sealing
Frame；
S34:Liquid crystal molecule is poured into liquid crystal cell along sealed-off mouth using irrigation crystal equipment, with UV glue sealed-off irrigation crystal mouths, forms liquid crystal
Lens.
Compared with prior art, the present invention provides controllable liquid crystal lens of a kind of pitch and preparation method thereof, the liquid crystal lens
Manufacture craft is simple, can not only realize liquid crystal lens focus adjustable, moreover it is possible to realizes that liquid crystal lens pitch is controllable, reaches dynamic liquid crystal
Lens effect.
Brief description of the drawings
The structural representation of Fig. 1 available liquid crystal lens.
A kind of controllable liquid crystal lens structure schematic diagram of Fig. 2 pitches provided by the invention.
The preparation method of pitch controllable liquid crystal the first key-course of lens of Fig. 3 first preferred embodiment of the invention specifically walks
Rapid schematic diagram.
The preparation method of pitch controllable liquid crystal the second key-course of lens of Fig. 4 first preferred embodiment of the invention specifically walks
Rapid schematic diagram.
The pitch controllable liquid crystal lens control schematic diagram of Fig. 5 first preferred embodiment of the invention.
The test design sketch of Fig. 6 pitch controllable liquid crystal lens.
Embodiment
For the objects, technical solutions and advantages of the present invention are more clearly understood, specific embodiment and phase will be passed through below
Accompanying drawing is closed, the present invention is described in further detail.In figure, for clarity, being exaggerated layer and the thickness in region, but it is used as and shows
It is intended to should not be considered as strictly reflecting the proportionate relationship of physical dimension.Here, the idealization that reference chart is the present invention is implemented
The schematic diagram of example, the embodiment shown in the present invention should not be considered limited to the given shape in the region shown in figure, but
Including resulting shape, such as deviation caused by manufacture.Represented in the present embodiment with rectangle, the expression in figure is signal
Property, but this should not be considered as limiting the scope of the invention.
The present invention provides a kind of pitch controllable liquid crystal lens, and it includes one first key-course, one second key-course, a liquid
Crystal layer and a control module；Wherein, first key-course includes one first transparency carrier, one first driving electrodes, one first
Insulating barrier, one second driving electrodes, a first orientation layer, one first high impedance layer；It is saturating that second key-course includes one second
Bright substrate, one the 3rd public electrode, one second high impedance layer and a second orientation layer.
As shown in Fig. 2 the present embodiment provides a kind of pitch controllable liquid crystal lens, including：Including one first key-course 11,
One second key-course 22, a liquid crystal layer 33 and a control module 55；Wherein, first key-course 11 includes one first transparent base
Plate 111, one first driving electrodes 112, one first insulating barrier 113, one second driving electrodes 114, a first orientation layer 115, one
First high impedance layer 116；Second key-course 22 includes the public electrode 222,1 of one second transparency carrier 221,1 the 3rd the
Two high impedance layers 223 and a second orientation layer 224.
The staggered parallel of first driving electrodes 112 is equidistantly arranged in the lower surface of the first transparency carrier 111；It is described
First insulating barrier 113 is arranged at the lower surface of the first driving electrodes 112；Between described staggered parallel of second driving electrodes 114 etc.
Away from being arranged at the lower surface of the first insulating barrier 113, and second driving electrodes 114 and first driving electrodes 112 are flat
Row arrangement；The central point of second driving electrodes 114 overlaps with the gap center point of first driving electrodes 112, described
The width of second driving electrodes 114 is equal to the gap width of two neighboring first driving electrodes 112, and two neighboring described second drives
The gap width of moving electrode 114 is equal to the width of first driving electrodes 112；First high impedance layer 115 is arranged at
The lower surface of two driving electrodes 114；The first orientation layer 116 is arranged at the lower surface of the first high impedance layer 115.
3rd public electrode 222 is arranged at the upper surface of second transparency carrier 221；Second high impedance layer
223 are arranged at the upper surface of the 3rd public electrode 221；The second orientation layer 224 is arranged at the upper surface of the second high impedance layer 223.
Preferably, the 3rd public electrode 222 is face electrode,
The control module 55 controls several first driving electrodes 112 and the 3rd public electrode 222, it is described several
Apply the liquid crystal lens that voltage forms pitch P=2KW between first driving electrodes 112 and the 3rd public electrode 222（K is big
In or equal to 1 natural number, W is driving electrodes width）；The control module 55 by moving the width of N number of driving electrodes successively
Degree（N is the natural number more than or equal to 1）, formed pitch for P=（2K+N）W liquid crystal lens, realize that the controllable liquid crystal of pitch is saturating
Mirror.
The control module 55 also can control several second driving electrodes 114 and the 3rd public electrode 222, in institute
The liquid crystal for stating application voltage formation pitch P=2KW between several second driving electrodes 114 and the 3rd public electrode 222 is saturating
Mirror（K is the natural number more than or equal to 1, and W is driving electrodes width）；The control module by moving N number of driving electricity successively
The width of pole（N is the natural number more than or equal to 1）, formed pitch for P=（2K+N）W liquid crystal lens, realize that pitch is controllable
Liquid crystal lens.
The control module 55 also can control several driving electrodes 114 of the first driving electrodes 112/ second and the described 3rd
Public electrode 222, in several described driving electrodes 114 of the first driving electrodes 112/ second and the 3rd public electrode 222
Between apply voltage formed pitch P=（2K+1）W liquid crystal lens（K is natural number, and W is driving electrodes width）；The control mould
Block 55 by moving the width of N number of driving electrodes 114 of first driving electrodes 112/ second successively（N is the nature more than or equal to 1
Number）, formed pitch for P=（2K+1+N）W liquid crystal lens, realize the controllable liquid crystal lens of pitch.
The differently- oriented directivity of the first orientation layer 115 and the direction of the first driving electrodes 112 or the second driving electricity
The direction of pole 114 is parallel；The differently- oriented directivity of the second orientation layer 224 and the direction of the first orientation layer 116 are antiparallel.
Also include a sealing frame 44, be arranged between first transparency carrier 111 and second transparency carrier 221,
For the liquid crystal layer 44 to be enclosed in 224 between the first orientation layer 116 and second orientation layer.
Also include a substrate material（Do not marked in figure）, be arranged at the first orientation layer 116 and second orientation layer 224 it
Between, the spacing for ensuring the first orientation layer 116 and second orientation layer 224 is preset space length.
Fig. 2 is refer to, and combines Fig. 3 and Fig. 4, a kind of controllable liquid crystal lens of pitch that the preferred embodiment of the present invention provides
Preparation method, comprise the following steps：
S1：First key-course makes, and it specifically comprises the following steps：
S11：One transparency carrier is provided.From the first transparency carrier 111 with transparent conductive layer, the glass is drawn
Piece, clean, drying, the first driving electrodes are made using photoetching technique；Concrete technology is as follows：Using spin coating proceeding by RZJ-304
Photoresist is transferred to the glass substrate surface with ito thin film, 110 DEG C of insulation 25min；It is 4 .4mW/cm in light intensity2Photoetching
Exposed 11 seconds on machine, concentration is 3% RZX-3038 solution developments；After solidification, volume ratio 50: ( 3-9 ) :50 salt
The mixed solution of acid, nitric acid and water is heated to 50-60 DEG C of spray and etched；Acetone soln removes photoresist, forms the first driving electricity
Pole 112.
S12：Magnetron sputtering, thermal evaporation or electron beam evaporation technique are used on the surface of (clean) first driving electrodes 112
Deposition a layer thickness is 30-240 nanometer transparents insulating barrier 113, can be for example silica（SiOx）Or silicon nitride（SiNx）, this
Place does not enumerate.Preferred magnetron sputtering makes the SiO that thickness is 60 nanometers in the embodiment of the present invention2Insulating barrier 113.Specific work
Skill condition is as follows：Using purity, substrate and Si ranges are from 5 centimetres, vacuum 2.0 × 10 for 99.95% Si targets-3Pa, oxygen/
Argon gas stream flow is than 50SCCM/150SCCM, sputtering power 1000W.
S13：On the surface of transparent insulating layer 113, a thickness is deposited using magnetron sputtering, thermal evaporation or electron beam evaporation technique
Spend for 50-300 nanometer transparent conductive films, can be for example indium tin oxide（Indium Tin Oxide, ITO）, indium zinc oxidation
Thing（Indium Zinc Oxide, IZO）Or Al-Doped ZnO（AZO）, do not enumerate herein, recycle photoetching technique to make
Second driving electrodes 114.It is 180 nanometer of second driving that preferred magnetron sputtering and photoetching technique, which make thickness, in the embodiment of the present invention
Electrode, concrete technology condition are as follows：Using purity, substrate and AZO ranges are from 5 centimetres, vacuum 2.0 for 99.95% AZO targets
×10-3Pa, argon gas stream flow 10SCCM, sputtering power 1000W.RZJ-304 photoresists are transferred to using spin coating proceeding and carried
AZO film glass substrate surfaces, 110 DEG C of insulation 25min；It is 4 .4mW/cm in light intensity2Exposed 11 seconds on litho machine, 3%RZX-
3038 solution developments, with volume ratio it is HCl after solidification: H2O=1 :200 spray etchings, acetone remove photoresist and form second
Driving electrodes 114.
S14：On the surface of (clean) second driving electrodes 114, a thickness is deposited using magnetron sputtering or thermal evaporation techniques
Spend the high impedance layer 115 for 1-100 nanometers, such as AZO, IGZO, Nb2OX, do not enumerate herein.It is excellent in the embodiment of the present invention
It is 30 nanometers of Nb to select magnetron sputtering to make thickness2O5, concrete technology condition is as follows：Use purity for 99.99% Nb2O5Target, base
Plate and Nb2O5Apart 5 centimetres of target, vacuum 2.0 × 10-4Pa, argon gas stream flow 10SCCM, sputtering power 60W.
S15：Layer of transparent is made using spin coating, printing or inkjet technology on the surface of (clean) high impedance layer 115
Material, for example polyimides（Polyimide, PI）, do not enumerate herein；Orientation layer film is formed after high-temperature roasting, will
Layer film is orientated along the first driving electrodes or the second driving electrodes direction friction orientation, forms first orientation layer 116.
S2：Second key-course 22 makes, and it specifically comprises the following steps：
S21：One transparency carrier is provided.From the second transparency carrier 111 with transparent conductive layer, the glass is drawn
Piece, clean, drying, the 3rd public electrode 222 is made using photoetching technique；
S22：On the surface of (clean) the 3rd public electrode 222, use magnetron sputtering or thermal evaporation techniques deposit a layer thickness for
The high impedance layer 223 of 1-50 nanometers, such as AZO, IGZO, Nb2OX, do not enumerate herein.Preferred magnetic in the embodiment of the present invention
It is 30 nanometers of Nb that control sputtering, which makes thickness,2O5, concrete technology condition such as S14.
S23：Layer of transparent is made using spin coating, printing or inkjet technology on the surface of (clean) high impedance layer 223
Material, for example polyimides（Polyimide, PI）, do not enumerate herein；Orientation layer film is formed after high-temperature roasting, will
Layer film is orientated along the opposite direction friction orientation of first orientation layer 116, forms second orientation layer 224.
S3：Liquid crystal lens make, and it specifically comprises the following steps：
S31：Powder spraying apparatus is used to make thickness as 4-100 microns on the surface of (clean) second key-course 22, density 50-
200/mm2Septum pellucidum ion, the separaant is circular or square.Preferably a diameter of 45 microns of circle in the embodiment of the present invention
Shape separaant, with density 120/mm2The surface of the second orientation layer 224 of the second key-course 22 is uniformly sprayed into, forms insulated column（Figure
In do not mark）, the spacing for ensureing first orientation layer 116 and second orientation layer 224 is preset space length.
S32：In the surrounding of (clean) first key-course 11 using printing or inkjet technology coating sealant；The envelope
The thickness of frame glue is more than the thickness of separaant；
S33：First key-course 11 and the second key-course 22 are pressed into first orientation layer 116 and the reversed alignment of second orientation layer 224, passed through
Sealant melts to form sealing frame 40 after 200 C；
S34：Liquid crystal molecule 30 is poured into liquid crystal cell along sealed-off mouth using irrigation crystal equipment, with UV glue sealed-off irrigation crystal mouths, forms liquid
Brilliant lens.
The control module 55 controls several first driving electrodes 112 and the 3rd public electrode 222, if described
Dry applies the liquid crystal lens that voltage forms pitch P=2KW between the first driving electrodes 112 and the 3rd public electrode 222（K
For the natural number more than or equal to 1, W is driving electrodes width）；The control module 55 by moving N number of driving electrodes successively
Width（N is the natural number more than or equal to 1）, formed pitch for P=（2K+N）W liquid crystal lens, realize the controllable liquid of pitch
Brilliant lens.The control module 55 also can control several second driving electrodes 114 and the 3rd public electrode 222, in institute
The liquid crystal for stating application voltage formation pitch P=2KW between several second driving electrodes 114 and the 3rd public electrode 222 is saturating
Mirror（K is the natural number more than or equal to 1, and W is driving electrodes width）；The control module by moving N number of driving electricity successively
The width of pole（N is the natural number more than or equal to 1）, formed pitch for P=（2K+N）W liquid crystal lens, realize that pitch is controllable
Liquid crystal lens.The control module 55 also can control several driving electrodes 114 of the first driving electrodes 112/ second and described the
Three public electrodes 222, in several described driving electrodes 114 of the first driving electrodes 112/ second and the 3rd public electrode
Apply between 222 voltage formed pitch P=（2K+1）W liquid crystal lens（K is natural number, and W is driving electrodes width）；The control
Molding block 55 by moving the width of N number of driving electrodes successively（N is the natural number more than or equal to 1）, formed pitch for P=（2K
+1+N）W liquid crystal lens, realize the controllable liquid crystal lens of pitch.The preferred control module 55 is in institute in the embodiment of the present invention
State the second driving electrodes 114 and the 3rd public electrode 222 applies driving voltage and forms liquid crystal lens；Pass through a mobile drive
The width of moving electrode, the control module 55 apply driving in first driving electrodes 112 and the 3rd public electrode 222
Voltage forms liquid crystal lens again；Single driving electrodes width is moved successively, so as to realize that liquid crystal lens focussing plane is equidistant
Seamless scanning switching, as shown in Figure 5 and Figure 6.
So far, a kind of controllable liquid crystal lens of pitch of the preferred embodiment of the present invention complete.
Above is presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, caused function are made
During with scope without departing from technical solution of the present invention, protection scope of the present invention is belonged to.
Claims (10)
- A kind of 1. controllable liquid crystal lens of pitch, it is characterised in that：Including one first key-course, one second key-course, a liquid crystal Layer and a control module；The liquid crystal layer is arranged between the first key-course, the second key-course；Control module one exports and first Key-course is connected, and another output of control module is connected with the second key-course；First key-course includes one first transparency carrier, one first driving electrodes, one first insulating barrier, one second driving electricity Pole, a first orientation layer and one first high impedance layer；Second key-course includes one second transparency carrier, one the 3rd common electrical Pole, one second high impedance layer and a second orientation layer.
- 2. the controllable liquid crystal lens of pitch according to claim 1, it is characterised in that：First driving electrodes are staggeredly flat Row is equidistantly arranged in the first transparency carrier lower surface；First insulating barrier is arranged at the first driving electrodes following table Face；The second driving electrodes staggered parallel spaced set is in the first insulating barrier lower surface, and second driving is electric Pole is parallel with first driving electrodes to be staggered；The central point of second driving electrodes and first driving electrodes Gap center point overlaps, and the width of second driving electrodes is equal to the gap width of two neighboring first driving electrodes, adjacent The gap width of two second driving electrodes is equal to the width of first driving electrodes；First high impedance layer is set In the second driving electrodes lower surface；The first orientation layer is arranged at the first high impedance layer lower surface.
- 3. the controllable liquid crystal lens of pitch according to claim 1, it is characterised in that：3rd public electrode is face electricity Pole, it is arranged at the upper surface of second transparency carrier；Second high impedance layer is arranged at the 3rd public electrode upper surface；Institute State second orientation layer and be arranged at the second high impedance layer upper surface.
- 4. the controllable liquid crystal lens of pitch according to Claims 2 or 3, it is characterised in that：The first orientation layer takes It is parallel with the first driving electrodes direction or the second driving electrodes direction to direction；The orientation side of the second orientation layer To antiparallel with the direction of the first orientation layer.
- 5. the controllable liquid crystal lens of pitch according to claim 1, it is characterised in that：The control module controls several First driving electrodes and the 3rd public electrode；The control module is in several first driving electrodes and the 3rd public electrode Between apply voltage, form pitch P=2KW liquid crystal lens, wherein K is the natural number more than or equal to 1, and W is that driving electrodes are wide Degree；For the control module by the width of N number of first driving electrodes of movement, wherein N is the natural number more than or equal to 1, Formation pitch be P=（2K+N）W liquid crystal lens, so as to realize the controllable liquid crystal lens of pitch.
- 6. the controllable liquid crystal lens of pitch according to claim 1, it is characterised in that：The control module controls several Second driving electrodes and the 3rd public electrode, apply voltage between several second driving electrodes and the 3rd public electrode Pitch P=2KW liquid crystal lens are formed, wherein K is the natural number more than or equal to 1, and W is driving electrodes width；The control mould Block is the natural number more than or equal to 1 by the width of N number of first driving electrodes of movement, wherein N, is formed pitch be P= （2K+N）W liquid crystal lens, so as to realize the controllable liquid crystal lens of pitch.
- 7. the controllable liquid crystal lens of pitch according to claim 1, it is characterised in that：The control module controls several First driving electrodes and the 3rd public electrode control several second driving electrodes and the 3rd public electrode, Apply voltage between one driving electrodes and the 3rd public electrode or between the second driving electrodes and the 3rd public electrode Formation pitch P=（2K+1）W liquid crystal lens, wherein K are natural number, and W is driving electrodes width；The control module passes through shifting Move the width of N number of first driving electrodes or the second driving electrodes, wherein N is natural number more than or equal to 1, is formed pitch be P= （2K+N+1）W liquid crystal lens, so as to realize the controllable liquid crystal lens of pitch.
- 8. the controllable liquid crystal lens of pitch according to claim 1, it is characterised in that：Also include a sealing frame, be arranged at Between first transparency carrier and second transparency carrier, for by the liquid crystal layer be enclosed in the first orientation layer and Between second orientation layer.
- 9. the controllable liquid crystal lens of pitch according to claim 1, it is characterised in that：Also include a substrate material, be arranged at Between the first orientation layer and second orientation layer, for ensuring that the spacing of the first orientation layer and second orientation layer is predetermined Spacing.
- A kind of 10. preparation method of the liquid crystal lens controllable based on the pitch described in claim 1, it is characterised in that including with Lower step：S1：First key-course makes, and it specifically comprises the following steps：S11：One transparent conducting glass is provided, scribing is carried out to the glass, cleaned, drying, first is made using photoetching technique and drives Moving electrode；S12：Used on the first driving electrodes surface magnetron sputtering, thermal evaporation or electron beam evaporation technique deposit a layer thickness for 30-240 nanometer transparent insulating barriers；S13：In transparent insulation layer surface, magnetron sputtering, thermal evaporation or electron beam evaporation technique is used to deposit a layer thickness as 50- 300 nanometer transparent conductive films, the second driving electrodes are made using photoetching technique；S14：On the second driving electrodes surface, magnetron sputtering or thermal evaporation techniques are used to deposit height of a layer thickness for 1-50 nanometers Impedance layer；S15：Transparent material layer is made using spin coating, printing or inkjet technology on the high impedance layer surface of cleaning, through height Orientation layer film is formed after temperature roasting, orientation layer film is taken along the first driving electrodes or the friction of the second driving electrodes direction To formation first orientation layer；S2:Second key-course makes, and it specifically comprises the following steps：S21:One transparent conducting glass is provided, scribing is carried out to the glass, cleaned, drying, it is public to make the 3rd using photoetching technique Common electrode；S22:On the 3rd public electrode surface of cleaning, magnetron sputtering or thermal evaporation techniques are used to deposit a layer thickness and received for 1-50 The high impedance layer of rice；S23:Transparent material layer is made using spin coating, printing or inkjet technology on high impedance layer surface, through high-temperature roasting Orientation layer film is formed afterwards, by orientation layer film along first orientation layer opposite direction friction orientation, forms second orientation layer;S3:Liquid crystal lens make, and it specifically comprises the following steps：S31:Layer surface is controlled to use powder spraying apparatus to make thickness as 4-100 microns second, density 50-200/mm2It is transparent Separaant, the separaant are circular or square；S32:In the first key-course surrounding using printing or inkjet technology coating sealant；The thickness of the sealant is more than The thickness of separaant；S33:First key-course and the second key-course are pressed into oriented layer reversed alignment, sealant, which is melted, after 200 C to form sealing Frame；S34:Liquid crystal molecule is poured into liquid crystal cell along sealed-off mouth using irrigation crystal equipment, with UV glue sealed-off irrigation crystal mouths, forms liquid crystal Lens.
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Application publication date: 20180223 |