CN104102063B - Liquid crystal lens preparation method and liquid crystal lens - Google Patents
Liquid crystal lens preparation method and liquid crystal lens Download PDFInfo
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- CN104102063B CN104102063B CN201410393200.8A CN201410393200A CN104102063B CN 104102063 B CN104102063 B CN 104102063B CN 201410393200 A CN201410393200 A CN 201410393200A CN 104102063 B CN104102063 B CN 104102063B
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Abstract
The invention discloses a kind of liquid crystal lens preparation method and liquid crystal lens, this method to include：Step 1：The ideal distribution curve of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre is obtained, is designated as ideal curve；Step 2：According to the ideal curve the second transparency high layer of making, the distribution of impedance in the second transparency high layer matches with the optical path difference distribution in the ideal curve；Step 3：Liquid crystal lens are made using the second transparency high layer.In liquid crystal lens provided by the present invention and preparation method thereof, distribution of impedance in the second transparency high layer matches with the optical path difference distribution in the ideal curve, so that using the second transparency high layer make liquid crystal lens in, it is higher apart from optical path difference distribution curve at the diverse location of liquid crystal lens center and the ideal distribution curve goodness of fit of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre, improve the utilization rate of optical path difference in the liquid crystal lens.
Description
Technical field
The present invention relates to liquid crystal technology field, more particularly to a kind of liquid crystal lens preparation method and a kind of liquid crystal lens.
Background technology
Liquid crystal lens of the prior art include：The upper substrate and infrabasal plate being oppositely arranged；Positioned at the upper substrate and institute
State the liquid crystal layer between infrabasal plate；Alignment film positioned at liquid crystal layer towards the upper substrate and infrabasal plate side；On described
Substrate is towards the transparency high layer of liquid crystal layer side, and impedance value is equal everywhere for the transparency high layer；It is arranged at the upper substrate
First electrode layer and the second electrode lay between the transparency high layer；The 3rd electricity positioned at the infrabasal plate towards liquid crystal layer
Pole layer, so as to by controlling the voltage between the first electrode layer and the 3rd electrode layer, the second electrode lay and the 3rd electrode layer
To control the steering of liquid crystal molecule in the liquid crystal layer so that the optical path difference of the liquid crystal molecule at diverse location is different, so as to real
The purpose of existing liquid crystal lens.But the optical path difference utilization rate of liquid crystal lens is relatively low in the prior art.
The content of the invention
In order to solve the above technical problems, the embodiments of the invention provide a kind of liquid crystal lens preparation method and a kind of liquid crystal
Lens, to improve the optical path difference utilization rate of the liquid crystal lens.
To solve the above problems, the embodiments of the invention provide following technical scheme：
A kind of preparation method of liquid crystal lens, including：
Step 1：Obtain the ideal distribution curve of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre, note
For ideal curve；
Step 2：According to the ideal curve the second transparency high layer of making, the impedance in the second transparency high layer divides
Cloth matches with the optical path difference distribution in the ideal curve；
Step 3：Liquid crystal lens are made using the second transparency high layer.
Preferably, making the second transparency high layer according to the ideal curve includes：
Step 201：Acquisition refers to liquid crystal lens, and the transparency high layer with reference in liquid crystal lens is designated as the first transparent height
Resistance layer；
Step 202：Detected to described with reference to liquid crystal lens, obtain the reference liquid crystal lens middle-range from liquid crystal lens
The distribution curve of optical path difference at the diverse location of center, is designated as reference curve, and the reference curve is same with the ideal curve
Optical path difference distribution curve under diopter；
Step 203：The reference curve and ideal curve are contrasted, it is different to obtain liquid crystal lens middle-range chaotropic crystalline substance lens centre
Opening position, the impedance correction coefficient of the first transparency high layer；
Step 204：At the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre, the impedance of the first transparency high layer
Correction factor, impedance value of the first transparency high layer at the diverse location of liquid crystal lens center is modified, obtains second
Transparency high layer.
Preferably, the reference curve and ideal curve are contrasted, it is different to obtain liquid crystal lens middle-range chaotropic crystalline substance lens centre
Opening position, the impedance correction coefficient of the first transparency high layer include：
Step 2031：The reference curve and ideal curve are contrasted, obtains liquid crystal lens middle-range chaotropic crystalline substance lens centre not
With the correction factor of opening position optical path difference；
Step 2032：According to the amendment system of optical path difference at the liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location
Number, is modified to impedance of the first transparency high layer at the diverse location of liquid crystal lens center；
Step 2033：Obtain in the liquid crystal lens made using revised first transparency high layer, apart from liquid crystal lens
The distribution curve of optical path difference, is designated as fair curve at the diverse location of center；
Step 2034：The reference curve and fair curve are contrasted, regains liquid crystal lens middle-range from liquid crystal lens
The correction factor of optical path difference at heart diverse location；
Step 2035：Repaiied according to optical path difference at the liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location regained
Positive coefficient, impedance of the revised first transparency high layer at the diverse location of liquid crystal lens center is corrected again；
Repeat step 2033- steps 2035, until the fair curve obtained matches with ideal curve, contrast now first
Impedance value of the transparency high layer at the diverse location of liquid crystal lens center is with the first transparency high layer apart from liquid crystal lens
Original impedance value at the diverse location of center, obtain the impedance correction coefficient of the first transparency high layer.
Preferably, impedance of the first transparency high layer at the diverse location of liquid crystal lens center is modified including：
In the region that the first transparency high layer impedance needs to reduce, increase transparent low-resistance ring.
Preferably, the transparent low-resistance ring is shaped as annulus.
Preferably, resistance of the transparent low-resistance ring along the sense of current is not more than the first transparency high layer in identical bits
Put 10% along sense of current resistance.
Preferably, 0 μm -5 μm of the width range of the transparent low-resistance ring, including right-hand member point value.
Preferably, impedance of the first transparency high layer at the diverse location of liquid crystal lens center is modified and also wrapped
Include：
The region for needing to improve to the first transparency high layer impedance performs etching, and is hindered in the first transparency high layer
The anti-region for needing to improve sets annular groove.
A kind of liquid crystal lens, made using preparation method described in any of the above-described, including：
The first substrate and second substrate being oppositely arranged；
Liquid crystal layer between the first substrate and second substrate；
Positioned at the liquid crystal layer towards the first substrate and the alignment film of second substrate side；
The second transparency high layer positioned at the first substrate towards the liquid crystal layer side, the second transparency high layer
In distribution of impedance and liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location at optical path difference ideal distribution curve in light
Path difference distribution matches；
First electrode and second electrode positioned at the first substrate towards the second transparency high layer side, wherein,
The second electrode is annular electrode, and the first electrode is transparency electrode, and in the annular region of the second electrode；
The 3rd electrode positioned at the second substrate towards the liquid crystal layer side.
Preferably, it is provided with insulating barrier between the first electrode and the second transparency high layer.
Preferably, the second electrode is low resistance electrode, and is directly electrically connected with the second transparency high layer.
Preferably, the second electrode is located at same layer with the second transparency high layer.
Preferably, the second electrode is located at different layers with the second transparency high layer.
Compared with prior art, above-mentioned technical proposal has advantages below：
The technical scheme that the embodiment of the present invention is provided, including：Step 1：Liquid crystal lens middle-range is obtained from liquid crystal lens
The ideal distribution curve of optical path difference, is designated as ideal curve at heart diverse location；Step 2：Second is made according to the ideal curve
Transparency high layer, the distribution of impedance in the second transparency high layer match with the optical path difference distribution in the ideal curve；
Step 3：Liquid crystal lens are made using the second transparency high layer.
From the foregoing, it will be observed that in the technical scheme that the embodiment of the present invention is provided, the impedance point in the second transparency high layer
Cloth matches with the optical path difference distribution in the ideal curve, so that the liquid crystal made using the second transparency high layer
In lens, optical path difference distribution curve and liquid crystal lens middle-range chaotropic crystalline substance lens centre be not at the diverse location of liquid crystal lens center
The ideal distribution curve goodness of fit with opening position optical path difference is higher, improves the utilization rate of optical path difference in the liquid crystal lens.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the distribution curve schematic diagram of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre, wherein,
Curve 1 is the ideal distribution curve schematic diagram of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre, and curve 2 is
In prior art at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre optical path difference actual distribution curve synoptic diagram；
The liquid crystal lens preparation method schematic flow sheet that Fig. 2 is provided by one embodiment of the invention；
The structural representation for the liquid crystal lens that Fig. 3 is provided by one embodiment of the invention；
In the liquid crystal lens that Fig. 4 is provided by one embodiment of the invention, the structural representation of the second transparency high layer；
In the liquid crystal lens that Fig. 5 is provided by one embodiment of the invention, the top view of the second transparency high layer；
In the liquid crystal lens that Fig. 6 is provided by one embodiment of the invention, the second transparency high layer annular recess is put
Big top view；
Fig. 7 is the partial structural diagram of the liquid crystal lens provided in another embodiment of the present invention；
Fig. 8 optical path differences at the diverse location of middle-range chaotropic crystalline substance lens centre by the liquid crystal lens that the embodiment of the present invention provides
Distribution curve schematic diagram, wherein, curve 3 be liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location at optical path difference ideal
Distribution curve schematic diagram, curve 4 are the light path at the diverse location of liquid crystal lens center in the embodiment of the present invention in liquid crystal lens
The actual distribution curve synoptic diagram of difference；
Optical path difference utilization rates pair of the Fig. 9 by the liquid crystal lens that the embodiment of the present invention provides and liquid crystal lens in the prior art
Compare table.
Embodiment
Just as described in the background section, the optical path difference utilization rate of liquid crystal lens is relatively low in the prior art.
Inventor, which studies, to be found, this is due to the utilization rate of the optical path difference of liquid crystal lens by the spy of liquid crystal molecule in liquid crystal layer
Property and be applied to liquid crystal layer both ends voltage determine.When the liquid crystal molecule in liquid crystal layer is all overturn, the light of liquid crystal lens
Path difference is maximum optical path difference：The refractive index △ n of liquid crystal molecule are multiplied by the thickness d of liquid crystal lens in liquid crystal layer.But work as liquid crystal layer
When both ends apply voltage, because liquid crystal layer towards the upper substrate and infrabasal plate side is provided with alignment film, point in liquid crystal layer
Son can not all be overturn, but be overturn according to certain distribution, to participate in realizing liquid crystal lens.
It should be noted that want to realize liquid crystal lens, it is desirable to which the voltage at the diverse location at liquid crystal layer both ends has specific
Voltage's distribiuting.As shown in figure 1, Fig. 1 shows point of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre
Cloth curve synoptic diagram, wherein, curve 1 is the ideal distribution of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre
Curve synoptic diagram, curve 2 are the reality of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre in prior art
Distribution curve schematic diagram.As seen from Figure 1, it is of the prior art compared to the optical path difference ideal distribution curve of liquid crystal lens
The rate of change of liquid crystal lens subregion optical path difference is very fast, i.e. the voltage changing rate at its liquid crystal layer both ends is very fast, and part
The rate of change of region optical path difference is slower, i.e. the voltage changing rate at its liquid crystal layer both ends is slower so that distance in liquid crystal lens
At the diverse location of liquid crystal lens center in the ideal distribution curve of optical path difference and prior art liquid crystal lens middle-range from liquid crystal lens
The actual distribution curves degree of optical path difference is poor at the diverse location of center, so as to cause the light path of liquid crystal lens in the prior art
Poor utilization rate is relatively low.
In view of this, the embodiments of the invention provide a kind of preparation method of liquid crystal lens, including：
Step 1：Obtain the ideal distribution curve of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre, note
For ideal curve；
Step 2：According to the ideal curve the second transparency high layer of making, the impedance in the second transparency high layer divides
Cloth matches with the optical path difference distribution in the ideal curve；
Step 3：Liquid crystal lens are made using the second transparency high layer.
Accordingly, the embodiment of the present invention additionally provides a kind of liquid crystal lens, and the liquid crystal lens are made using above-mentioned liquid crystal
Method makes, including：
The first substrate and second substrate being oppositely arranged；
Liquid crystal layer between the first substrate and second substrate；
Positioned at the liquid crystal layer towards the first substrate and the alignment film of second substrate side；
The second transparency high layer positioned at the first substrate towards the liquid crystal layer side, the second transparency high layer
In distribution of impedance and liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location at optical path difference ideal distribution curve in light
Path difference distribution matches；
First electrode and second electrode positioned at the first substrate towards the second transparency high layer side, wherein,
The second electrode is annular electrode, and the first electrode is transparency electrode, and in the annular region of the second electrode；
The 3rd electrode positioned at the second substrate towards the liquid crystal layer side.
Because the electric capacity in the impedance and device of the second transparency high layer forms RC discharge loops, the RC of diverse location is not
Together, it is different to the amplitude and phase change degree of drive signal, cause the voltage effective value of diverse location AC signal different, from
And make it that the rollover states of liquid crystal molecule in liquid crystal layer are distributed by the rule of RC circuits, therefore, it is transparent to change described second
Impedance of the resistive formation at the different distance of the liquid crystal lens center, thus it is possible to vary liquid crystal described in distance is saturating in the liquid crystal layer
The rollover states of liquid crystal molecule at the diverse location of mirror center.
And in the liquid crystal lens preparation method that the embodiment of the present invention is provided, the impedance point in the second transparency high layer
Cloth matches with the optical path difference distribution in the ideal curve, so that the liquid crystal made using the second transparency high layer
In lens, optical path difference distribution curve and liquid crystal lens middle-range chaotropic crystalline substance lens centre be not at the diverse location of liquid crystal lens center
The ideal distribution curve goodness of fit with opening position optical path difference is higher, improves the utilization rate of optical path difference in the liquid crystal lens.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.
Detail is elaborated in the following description in order to fully understand the present invention.But the present invention can with it is a variety of not
Other manner described here is same as to implement, those skilled in the art can do class in the case of without prejudice to intension of the present invention
Like popularization.Therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in Fig. 2 the embodiments of the invention provide a kind of preparation method of liquid crystal lens, including：
Step 1：Obtain the ideal distribution curve of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre, note
For ideal curve, with reference to the curve 1 in figure 1.
In one embodiment of the invention, the ideal curve is light of the liquid crystal lens in the case where diopter is 10D
Path difference distribution curve, in another embodiment of the present invention, the ideal curve can also be the liquid crystal lens in dioptric
Spend and this is not limited for the optical path difference distribution curve under other diopters such as 9D, 9.5D or 8D, the present invention, specifically optionally
Depending on.
Step 2：According to the ideal curve the second transparency high layer of making, the impedance in the second transparency high layer divides
Cloth matches with the optical path difference distribution in the ideal curve.
In one embodiment of the invention, making the second transparency high layer according to the ideal curve includes：
Step 201：Acquisition refers to liquid crystal lens, and the transparency high layer with reference in liquid crystal lens is designated as the first transparent height
Resistance layer.Wherein, the reference liquid crystal lens can be any liquid crystal lens of the prior art, and the present invention is not limited this
It is fixed.
Preferably, in one embodiment of the invention, impedance everywhere is identical in the first transparency high layer, in this hair
In bright other embodiment, the impedance in the first transparency high layer everywhere can also be differed, and the present invention is not done to this
Limit, specifically depend on the circumstances.It should be noted that when impedance is identical everywhere in the first transparency high layer, described
Impedance everywhere in one transparency high layer is identical in theory, is limited by specific manufacture craft, first transparency high
Impedance relative size in layer everywhere is random distribution, rather than exactly the same.
Step 202：Detected to described with reference to liquid crystal lens, obtain the reference liquid crystal lens middle-range from liquid crystal lens
The distribution curve of optical path difference, is designated as reference curve at the diverse location of center, with reference to the curve 2 in figure 1.It should be noted that institute
It is the optical path difference distribution curve under same diopter that reference curve, which is stated, with the ideal curve.
Due to being detected to described with reference to liquid crystal lens, obtain described with reference to liquid crystal lens middle-range chaotropic crystalline substance lens centre
The method of the distribution curve of optical path difference is known to those skilled in the art at diverse location, and the present invention is no longer superfluous in detail to this
State.
Step 203：The reference curve and ideal curve are contrasted, it is different to obtain liquid crystal lens middle-range chaotropic crystalline substance lens centre
Opening position, the impedance correction coefficient of the first transparency high layer.
In one embodiment of the invention, the reference curve and ideal curve are contrasted, obtains distance in liquid crystal lens
At the diverse location of liquid crystal lens center, the impedance correction coefficient of the first transparency high layer includes：
Step 2031：The reference curve and ideal curve are contrasted, obtains liquid crystal lens middle-range chaotropic crystalline substance lens centre not
With the correction factor of opening position optical path difference；
Step 2032：According to the amendment system of optical path difference at the liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location
Number, is modified to impedance of the first transparency high layer at the diverse location of liquid crystal lens center；
Step 2033：The liquid crystal lens middle-range made using revised first transparency high layer is obtained from liquid crystal lens
The distribution curve of optical path difference, is designated as fair curve at heart diverse location；
Step 2034：The reference curve and fair curve are contrasted, regains liquid crystal lens middle-range from liquid crystal lens
The correction factor of optical path difference at heart diverse location；
Step 2035：Repaiied according to optical path difference at the liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location regained
Positive coefficient, impedance of the revised first transparency high layer at the diverse location of liquid crystal lens center is corrected again；
Repeat step 2033- steps 2035, until the fair curve obtained matches with ideal curve, contrast now first
Impedance value of the transparency high layer at the diverse location of liquid crystal lens center is with the first transparency high layer apart from liquid crystal lens
Original impedance value at the diverse location of center, obtain the impedance correction coefficient of the first transparency high layer.
In one particular embodiment of the present invention, the reference curve and the ideal curve are that diopter is 10D
The optical path difference distribution curve of lower acquisition, therefore in the present embodiment, the impedance correction coefficient of the first transparency high layer of acquisition is also
Diopter is the impedance correction coefficient obtained under 10D.
It should be noted that in a preferred embodiment of the invention, when the resistance for obtaining the first transparency high layer
Anti- correction factor is also that diopter is after the impedance correction coefficient obtained under 10D, it is necessary to be verified to the correction factor, that is, is tested
For card under other diopters, the optical path difference of the liquid crystal lens made using the first transparency high layer after the correction factor is distributed song
Whether the difference of line and its ideal curve is within RMS (Root Mean Square, i.e. root-mean-square value) preset range, if not
In RMS preset ranges, then the correction factor of the first transparency high layer is reacquired, if in RMS preset ranges,
Perform next step.Preferably, the RMS preset ranges are no more than 0.1.
, can be with it should also be noted that, in embodiments of the present invention, the fair curve matches with the ideal curve
Fitted like a glove for the fair curve and the ideal curve, or fair curve kiss approximate with the ideal curve
Close, the present invention is not limited this, as long as ensureing that the liquid crystal lens middle-range chaotropic made using the preparation method can be improved
The distribution curve of optical path difference and the goodness of fit of ideal curve at brilliant center diverse location, made so as to improve using the preparation method
Liquid crystal lens optical path difference utilization rate.
Step 204：At the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre, the impedance of the first transparency high layer
Correction factor, impedance value of the first transparency high layer at the diverse location of liquid crystal lens center is modified, obtains second
Transparency high layer；
In one embodiment of the invention, the resistance to the first transparency high layer at the diverse location of liquid crystal lens center
It is anti-be modified including：In the region that the first transparency high layer impedance needs to reduce, increase transparent low-resistance ring.
In one embodiment of the present embodiment, the transparent low-resistance ring is annulus, so as to which utility this method makes
Liquid crystal lens in, the impedance value at the same distance of the liquid crystal lens center is identical, i.e., in the liquid crystal lens
Liquid crystal molecule deflection state at heart same distance is identical, ensures the light collection through the liquid crystal lens in same point.Need
It is noted that in working as the liquid crystal lens that the method provided using the embodiment of the present invention is made, the second transparency high layer
During including multiple transparent low-resistance rings, the multiple transparent low-resistance ring is preferably donut.
On the basis of above-described embodiment, in one embodiment of the invention, the transparent low-resistance ring is along the sense of current
Resistance no more than the first transparency high layer in same position along sense of current resistance 10%, but the present invention to this not
Limit, as long as ensureing, in the region that the first transparency high layer impedance needs reduce, after increasing transparent low-resistance ring, to drop
The low first transparency high layer impedance needs the impedance value in the region reduced.
It should be noted that in embodiments of the invention, the line width of the transparent low-resistance ring should be as thin as possible, with as far as possible
In liquid crystal lens of the fine raising using this method making, the impedance value at the different distance of the liquid crystal lens center,
The ideal distribution curve of optical path difference at the liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location is improved as far as possible and utilizes this
Inventive embodiments provide point of optical path difference at the liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location of preparation method making
The goodness of fit of cloth curve, the optical path difference for improving the liquid crystal lens for providing preparation method making using the embodiment of the present invention utilize
Rate.
In a preferred embodiment of the invention, 0 μm -5 μm of the width range of the transparent low-resistance ring, including right endpoint
Value, but the present invention is not limited this, is specifically depended on the circumstances.
On the basis of any of the above-described embodiment, in another embodiment of the present invention, to the first transparency high layer away from
Impedance at the diverse location of chaotropic crystalline substance lens centre, which is modified, also to be included：
The region for needing to improve to the first transparency high layer impedance performs etching, and is hindered in the first transparency high layer
The anti-region for needing to improve sets annular groove.
In one embodiment of the present embodiment, the annular groove is preferably distributed shape groove structure by multiple hexagonal honeycombs
Into the multiple hexagonal honeycomb distribution shape groove is preferably to be centrosymmetric with the liquid crystal lens center of circle.And the honeycomb distribution
Size of the shape groove along liquid crystal lens radial direction with perpendicular to the ratio between size of radial direction under the premise of impedance needs are met
As big as possible, to ensure in the liquid crystal lens made, the impedance value at the same distance of the liquid crystal lens center is identical, i.e.,
Liquid crystal molecule deflection state at the same distance of the liquid crystal lens center is identical, ensures the light through the liquid crystal lens
Line converges at same point.It should be noted that when the second transparency high layer includes multiple annular grooves, the multiple ring
Connected in star is preferably concentric ring recesses, i.e., the multiple annular groove is in preferably center pair with the liquid crystal lens center
Claim.
It should also be noted that, on the basis of above-described embodiment, the width of the honeycomb distribution shape groove should be as far as possible
Thin, impedance value of the liquid crystal lens made with as fine as possible reduction at the different distance of the liquid crystal lens center,
The ideal distribution curve of optical path difference at the liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location is improved as far as possible and utilizes this
Inventive embodiments provide point of optical path difference at the liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location of preparation method making
The goodness of fit of cloth curve, the optical path difference for improving the liquid crystal lens for providing preparation method making using the embodiment of the present invention utilize
Rate.
Step 3：After obtaining the second transparency high layer, liquid crystal lens are made using the second transparency high layer.Due to profit
Side of the method for liquid crystal lens with making liquid crystal lens using transparency high layer in the prior art is made with the second transparency high layer
Method is similar, and this is no longer described in detail the present invention.
In summary, the preparation method for the liquid crystal lens that the embodiment of the present invention is provided, including：Step 1：It is saturating to obtain liquid crystal
The ideal distribution curve of optical path difference, is designated as ideal curve at the diverse location of mirror middle-range chaotropic crystalline substance lens centre；Step 2：According to institute
State ideal curve and make the second transparency high layer, the distribution of impedance in the second transparency high layer with the ideal curve
Optical path difference distribution matches；Step 3：Liquid crystal lens are made using the second transparency high layer, so that utilizing described the
In the liquid crystal lens that two transparency high layers make, optical path difference distribution curve and liquid crystal are saturating at the diverse location of liquid crystal lens center
The ideal distribution curve goodness of fit of optical path difference is higher at the diverse location of mirror middle-range chaotropic crystalline substance lens centre, and it is saturating to improve the liquid crystal
The utilization rate of optical path difference in mirror.
Accordingly, the embodiment of the present invention additionally provides a kind of liquid crystal lens, and the liquid crystal lens utilize any of the above-described implementation
The preparation method that example is provided makes and obtained.As shown in figure 3, the liquid crystal lens include
The first substrate 1 and second substrate 2 being oppositely arranged；
Liquid crystal layer 3 between the first substrate 1 and second substrate 2；
Positioned at the liquid crystal layer 3 towards the first substrate 1 and the alignment film 4 of the side of second substrate 2；
The second transparency high layer 5 positioned at the first substrate 1 towards the side of liquid crystal layer 3, the second transparent height
At distribution of impedance and liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location in resistance layer 5 in the ideal distribution curve of optical path difference
Optical path difference distribution match；
First electrode 6 and second electrode 7 positioned at the first substrate 1 towards the side of the second transparency high layer 5, its
In, the second electrode 7 is annular electrode, and the first electrode 6 is transparency electrode, and positioned at the annular of the second electrode 7
In region；
The 3rd electrode 8 positioned at the second substrate 2 towards the side of liquid crystal layer 3.
In one embodiment of the invention, as shown in figure 4, the second transparency high layer 5 includes the first transparency high
Layer 51 and at least one transparent low-resistance ring 52 positioned at the surface of the first transparency high layer 51, it is saturating so as to reduce described first
The impedance value in the bright middle impedance of resistive formation 51 region to be reduced.
Preferably, in one embodiment of the invention, the transparent low-resistance ring 52 is annulus, so as to ensure the liquid crystal
In lens, the impedance value at the same distance of the liquid crystal lens center is identical, i.e., identical apart from the liquid crystal lens center
Liquid crystal molecule deflection state at distance is identical, ensures the light collection through the liquid crystal lens in same point.Need to illustrate
, as shown in figure 5, work as in the liquid crystal lens, when the second transparency high layer 5 includes multiple transparent low-resistance rings 52, institute
It is preferably donut to state multiple transparent low-resistance rings 52.
On the basis of any of the above-described embodiment, in a preferred embodiment of the invention, the transparent low-resistance ring 52
It is not more than 10% of the first transparency high layer 51 in same position along sense of current resistance, but this along the resistance of the sense of current
Invention is not limited this, is specifically depended on the circumstances.
It should be noted that in embodiments of the invention, the line width of the transparent low-resistance ring 52 should be as thin as possible, to the greatest extent may be used
Impedance value of the fine raising liquid crystal lens of energy at the different distance of the liquid crystal lens center, improves the liquid as far as possible
The ideal distribution curve of optical path difference and liquid crystal lens middle-range chaotropic are brilliant thoroughly at brilliant lens middle-range chaotropic crystalline substance lens centre diverse location
The goodness of fit of the actual distribution curve of optical path difference at the diverse location of mirror center, improve the optical path difference utilization rate of the liquid crystal lens.
In a preferred embodiment of the invention, 0 μm -5 μm of the width range of the transparent low-resistance ring 52, including right-hand member
Point value, but the present invention is not limited this, is specifically depended on the circumstances.
On the basis of any of the above-described embodiment of the present invention, in one embodiment of the invention, the second transparent height
Also include at least one annular groove in resistance layer 5, to improve the impedance in the middle impedance region to be improved of the second transparency high layer 5
Value, so as to improve the ideal distribution curve and liquid crystal lens of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre
The goodness of fit of the actual distribution curve of optical path difference, finally improves the liquid crystal lens at the diverse location of middle-range chaotropic crystalline substance lens centre
Optical path difference utilization rate.
In one embodiment of the invention, as shown in fig. 6, the annular groove 53 is preferably by multiple hexagonal honeycombs point
Cloth-like groove is formed, and the multiple hexagonal honeycomb distribution shape groove is preferably to be centrosymmetric with the liquid crystal lens center of circle.And institute
Size of the honeycomb distribution shape groove along liquid crystal lens radial direction is stated with meeting impedance perpendicular to the ratio between size of radial direction
It is as big as possible under the premise of needing, to ensure in the liquid crystal lens, the impedance at the same distance of the liquid crystal lens center
It is worth identical, i.e., the liquid crystal molecule deflection state at the same distance of the liquid crystal lens center is identical, ensures to pass through the liquid
The light collection of brilliant lens is in same point.It should be noted that when in the liquid crystal lens, the second transparency high layer 5 wraps
When including multiple annular grooves 53, the multiple annular groove 53 is preferably concentric ring recesses, i.e., the multiple annular groove is excellent
Elect as and be centrosymmetric with the liquid crystal lens center.
It should also be noted that, on the basis of above-described embodiment, the width of the honeycomb distribution shape groove should be as far as possible
It is thin, with impedance value of as the fine as possible reduction liquid crystal lens at the different distance of the liquid crystal lens center, to the greatest extent
Amount improves the ideal distribution curve and liquid crystal lens of optical path difference at the liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location
The goodness of fit of the actual distribution curve of optical path difference, finally improves the liquid crystal lens at the diverse location of middle-range chaotropic crystalline substance lens centre
Optical path difference utilization rate.
On the basis of any of the above-described embodiment, as shown in fig. 7, in one embodiment of the invention, first electricity
Insulating barrier 9 is additionally provided between pole 6 and the second transparency high layer 5.Preferably, in this embodiment, the second electrode 7
The side that the insulating barrier 9 deviates from 6 layers of the first electrode is arranged at, i.e., described insulating barrier 9 is towards second transparency high
The side of layer 5, so as to ensure that the second electrode 7 directly electrically connects with the second transparency high layer 5, avoid second electricity
Electric capacity is formed between pole 7 and the second transparency high layer 5, reduces the drive of the region of second electrode 7 in the liquid crystal lens
Dynamic signal virtual value, and then cause to reduce and be applied to the region liquid crystal molecule both ends of second electrode 7 in the liquid crystal lens
Actual voltage value, the voltage change ratio of the region of second electrode 7 in the liquid crystal lens is reduced, that is, reduce the institute of second electrode 7
Optical path difference rate of change in region, reduce the ideal distribution of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre
The goodness of fit of curve and the actual distribution curve of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre, most final decline
The optical path difference utilization rate of the low liquid crystal lens.
It should be noted that in one embodiment of the invention, the second electrode 7 and the second transparency high layer
5 can be located at same layer, in another embodiment of the present invention, the second electrode 7 and the second transparency high layer 5
Different layers can be located at, the present invention is not limited this, as long as ensureing the second electrode 7 and the second transparency high layer
5 directly electrically connect.
As shown in figure 8, shown in Fig. 8 liquid crystal lens that the embodiment of the present invention provided apart from liquid crystal lens center not
With the distribution curve schematic diagram of opening position optical path difference, wherein, curve 3 is liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location
Locate the ideal distribution curve schematic diagram of optical path difference, curve 4 is in the embodiment of the present invention in liquid crystal lens, apart from liquid crystal lens center
The actual distribution curve synoptic diagram of optical path difference at diverse location.As seen from Figure 8, the liquid crystal that the embodiment of the present invention is provided is saturating
In mirror, at the diverse location of liquid crystal lens center the actual distribution curve of optical path difference and its ideal distribution curve goodness of fit compared with
Height, so as to improve the optical path difference utilization rate of the liquid crystal lens.
As shown in figure 9, Fig. 9 shows the liquid crystal lens and liquid crystal lens in the prior art that the embodiment of the present invention is provided
Optical path difference utilization rate contrast table, as seen from Figure 9, compared to liquid crystal lens of the prior art, the embodiment of the present invention is carried
The utilization rate of its optical path difference has been brought up to more than 69% by the liquid crystal lens of confession by of the prior art 45% so that the present invention is real
Liquid crystal lens that example provided are applied in the case where ensureing that thickness is constant, its diopter is promoted to~10.5D by~6.5D, or
Person effectively reduces the thickness of the liquid crystal lens in the case where ensureing that diopter is constant, improves the printing opacity of the liquid crystal lens
Rate, the problems such as improving response speed and the dispersion of the liquid crystal lens.
In summary, the liquid crystal lens that the embodiment of the present invention is provided, its light at the diverse location of liquid crystal lens center
The actual distribution curve of path difference and the ideal distribution curve of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre
The goodness of fit is higher, improves the optical path difference utilization rate of the liquid crystal lens.
Various pieces are described by the way of progressive in this specification, and what each some importance illustrated is and other parts
Difference, between various pieces identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
Embodiment illustrated herein is not intended to be limited to, and is to fit to consistent with principles disclosed herein and features of novelty
Most wide scope.
Claims (7)
- A kind of 1. preparation method of liquid crystal lens, it is characterised in that including：Step 1：The ideal distribution curve of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre is obtained, is designated as managing Think curve；Step 2：Second transparency high layer is made according to the ideal curve, the distribution of impedance in the second transparency high layer with Optical path difference distribution in the ideal curve matches；Step 3：Liquid crystal lens are made using the second transparency high layer；Wherein, the liquid crystal lens include：The first substrate and second substrate being oppositely arranged；Liquid crystal layer between the first substrate and second substrate；Positioned at the liquid crystal layer towards the first substrate and the alignment film of second substrate side；The second transparency high layer positioned at the first substrate towards the liquid crystal layer side, in the second transparency high layer Distribution of impedance and the optical path difference in the ideal distribution curve of optical path difference at the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre Distribution matches；It is described to be included according to the ideal curve the second transparency high layer of making：Step 201：Acquisition refers to liquid crystal lens, and the transparency high layer with reference in liquid crystal lens is designated as the first transparency high Layer；Step 202：Detect, obtain described with reference to liquid crystal lens middle-range chaotropic crystalline substance lens centre with reference to liquid crystal lens to described The distribution curve of optical path difference at diverse location, reference curve is designated as, the reference curve and the ideal curve are same dioptric Optical path difference distribution curve under degree；Step 203：The reference curve and ideal curve are contrasted, obtains liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location Place, the impedance correction coefficient of the first transparency high layer；Step 204：At the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre, the impedance correction of the first transparency high layer Coefficient, impedance value of the first transparency high layer at the diverse location of liquid crystal lens center is modified, it is transparent to obtain second Resistive formation.
- 2. preparation method according to claim 1, it is characterised in that contrast the reference curve and ideal curve, obtain At the diverse location of liquid crystal lens middle-range chaotropic crystalline substance lens centre, the impedance correction coefficient of the first transparency high layer includes：Step 2031：The reference curve and ideal curve are contrasted, obtains liquid crystal lens middle-range chaotropic crystalline substance lens centre difference position Put the correction factor of place's optical path difference；Step 2032：It is right according to the correction factor of optical path difference at the liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location Impedance of the first transparency high layer at the diverse location of liquid crystal lens center is modified；Step 2033：Obtain in the liquid crystal lens made using revised first transparency high layer, apart from liquid crystal lens center The distribution curve of optical path difference, is designated as fair curve at diverse location；Step 2034：The reference curve and fair curve are contrasted, regains liquid crystal lens middle-range chaotropic crystalline substance lens centre not With the correction factor of opening position optical path difference；Step 2035：According to the amendment system of optical path difference at the liquid crystal lens middle-range chaotropic crystalline substance lens centre diverse location regained Number, is corrected again to impedance of the revised first transparency high layer at the diverse location of liquid crystal lens center；Repeat step 2033- steps 2035, until the fair curve obtained matches with ideal curve, contrast now first transparent Impedance value of the resistive formation at the diverse location of liquid crystal lens center is with the first transparency high layer apart from liquid crystal lens center Original impedance value at diverse location, obtain the impedance correction coefficient of the first transparency high layer.
- 3. preparation method according to claim 2, it is characterised in that to the first transparency high layer apart from liquid crystal lens center Impedance at diverse location be modified including：In the region that the first transparency high layer impedance needs to reduce, increase transparent low-resistance ring.
- 4. preparation method according to claim 3, it is characterised in that the transparent low-resistance ring is shaped as annulus.
- 5. preparation method according to claim 4, it is characterised in that resistance of the transparent low-resistance ring along the sense of current is not More than the first transparency high layer in same position along sense of current resistance 10%.
- 6. preparation method according to claim 5, it is characterised in that 0 μm -5 μm of the width range of the transparent low-resistance ring, Including right-hand member point value.
- 7. according to the preparation method described in claim any one of 1-6, it is characterised in that to the first transparency high layer apart from liquid crystal Impedance at the diverse location of lens centre, which is modified, also to be included：The region for needing to improve to the first transparency high layer impedance performs etching, and is needed in the first transparency high layer impedance The region to be improved sets annular groove.
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| CN109634024A (en) * | 2019-02-22 | 2019-04-16 | 武汉芯盈科技有限公司 | The lower fingerprint sensor structure of lens arrangement and screen of focus adjustable |
| CN110058464B (en) * | 2019-05-29 | 2022-01-07 | 京东方科技集团股份有限公司 | Liquid crystal photon sieve structure and near-to-eye display device |
| CN110275363A (en) * | 2019-06-21 | 2019-09-24 | 大连海事大学 | A kind of low aberrations mode electrode liquid crystal lens |
| CN111610671A (en) * | 2020-06-24 | 2020-09-01 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN113514974B (en) * | 2021-04-19 | 2022-07-08 | 南昌虚拟现实研究院股份有限公司 | Liquid crystal lens zooming processing method and system |
| CN113759546B (en) * | 2021-08-16 | 2023-08-08 | 广东工业大学 | Lens design method based on high-resistance layer thickness |
| CN113777833B (en) * | 2021-08-16 | 2023-08-08 | 广东工业大学 | Liquid crystal lens aberration optimization method and application |
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| CN101548224A (en) * | 2006-09-01 | 2009-09-30 | 庄臣及庄臣视力保护公司 | Electro-optic lenses employing resistive electrodes |
| CN102053446A (en) * | 2009-10-27 | 2011-05-11 | 乐金显示有限公司 | Liquid crystal lens electrically driven and stereoscopic display device using the same |
| CN102341743A (en) * | 2009-09-28 | 2012-02-01 | 株式会社东芝 | Stereoscopic image display device |
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| JP4863403B2 (en) * | 2008-08-14 | 2012-01-25 | 秋田県 | Liquid crystal optical device |
| JP6019903B2 (en) * | 2012-08-03 | 2016-11-02 | 日本電気硝子株式会社 | Method for manufacturing liquid crystal element and liquid crystal element |
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| CN101548224A (en) * | 2006-09-01 | 2009-09-30 | 庄臣及庄臣视力保护公司 | Electro-optic lenses employing resistive electrodes |
| CN102341743A (en) * | 2009-09-28 | 2012-02-01 | 株式会社东芝 | Stereoscopic image display device |
| CN102053446A (en) * | 2009-10-27 | 2011-05-11 | 乐金显示有限公司 | Liquid crystal lens electrically driven and stereoscopic display device using the same |
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