CN104102063A - Liquid crystal lens manufacturing method and liquid crystal lens - Google Patents
Liquid crystal lens manufacturing method and liquid crystal lens Download PDFInfo
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- CN104102063A CN104102063A CN201410393200.8A CN201410393200A CN104102063A CN 104102063 A CN104102063 A CN 104102063A CN 201410393200 A CN201410393200 A CN 201410393200A CN 104102063 A CN104102063 A CN 104102063A
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Abstract
The invention discloses a liquid crystal lens manufacturing method and a liquid crystal lens. The method comprises a first step of obtaining an ideal distribution curve of optical path differences of different positions of the liquid crystal lens away from the center of the liquid crystal lens, and marking the ideal distribution curve as an ideal curve; a second step of manufacturing a second transparent high-resistance layer according to the ideal curve, enabling impedance distribution in the second transparent high-resistance layer to be matched with optical path difference distribution in the ideal curve; and a third step of utilizing the second transparent high-resistance layer to manufacture the liquid crystal lens. According to the liquid crystal lens and the manufacturing method for manufacturing the liquid crystal lens, the impedance distribution in the second transparent high-resistance layer to be matched with the optical path difference distribution in the ideal curve, so that in the liquid crystal lens manufactured by utilizing the second transparent high-resistance layer, a distribution curve of optical path differences at different positions away from the center of the liquid crystal lens and the ideal distribution curve of the different positions of the liquid crystal lens away from the center of the liquid crystal lens are high in goodness of fit, and the utilization rate of the optical path differences in the liquid crystal lens is improved.
Description
Technical field
The present invention relates to liquid crystal technology field, relate in particular to a kind of liquid crystal lens method for making and a kind of liquid crystal lens.
Background technology
Liquid crystal lens of the prior art comprises: the upper substrate being oppositely arranged and infrabasal plate; Liquid crystal layer between described upper substrate and described infrabasal plate; Be positioned at the alignment film of liquid crystal layer towards described upper substrate and infrabasal plate one side; Be positioned at the transparency high layer of described upper substrate towards liquid crystal layer one side, described transparency high layer everywhere resistance value equates; Be arranged at the first electrode layer and the second electrode lay between described upper substrate and described transparency high layer; Be positioned at the third electrode layer of described infrabasal plate towards liquid crystal layer, thereby control turning to of liquid crystal molecule in described liquid crystal layer by controlling voltage between described the first electrode layer and third electrode layer, the second electrode lay and third electrode layer, make the optical path difference difference of the liquid crystal molecule at diverse location place, thereby realize the object of liquid crystal lens.But the optical path difference utilization factor of liquid crystal lens is lower in prior art.
Summary of the invention
For solving the problems of the technologies described above, the embodiment of the present invention provides a kind of liquid crystal lens method for making and a kind of liquid crystal lens, to improve the optical path difference utilization factor of described liquid crystal lens.
For addressing the above problem, the embodiment of the present invention provides following technical scheme:
A method for making for liquid crystal lens, comprising:
Step 1: obtain the ideal distribution curve of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, be designated as ideal curve;
Step 2: make the second transparency high layer according to described ideal curve, the distribution of impedance in described the second transparency high layer and the optical path difference in described ideal curve distribute and match;
Step 3: utilize described the second transparency high layer to make liquid crystal lens.
Preferably, making the second transparency high layer according to described ideal curve comprises:
Step 201: obtain with reference to liquid crystal lens, be describedly designated as the first transparency high layer with reference to the transparency high layer in liquid crystal lens;
Step 202: detect with reference to liquid crystal lens described, obtain the described distribution curve with reference to diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, be designated as reference curve, described reference curve and described ideal curve are the optical path difference distribution curve under same diopter;
Step 203: contrast described reference curve and ideal curve, obtain diverse location place, liquid crystal lens middle distance liquid crystal lens center, the impedance correction coefficient of the first transparency high layer;
Step 204: according to diverse location place, liquid crystal lens middle distance liquid crystal lens center, the impedance correction coefficient of the first transparency high layer, revises apart from the resistance value at diverse location place, liquid crystal lens center the first transparency high layer, obtains the second transparency high layer.
Preferably, contrast described reference curve and ideal curve, obtain diverse location place, liquid crystal lens middle distance liquid crystal lens center, the impedance correction coefficient of the first transparency high layer comprises:
Step 2031: contrast described reference curve and ideal curve, obtain the correction factor of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference;
Step 2032: according to the correction factor of diverse location place, described liquid crystal lens middle distance liquid crystal lens center optical path difference, the first transparency high layer is revised apart from the impedance at diverse location place, liquid crystal lens center;
Step 2033: obtain in the liquid crystal lens that utilizes revised the first transparency high layer making, apart from the distribution curve of diverse location place, liquid crystal lens center optical path difference, be designated as fair curve;
Step 2034: contrast described reference curve and fair curve, regain the correction factor of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference;
Step 2035: according to the correction factor of diverse location place, the liquid crystal lens middle distance liquid crystal lens center optical path difference regaining, revised the first transparency high layer is revised again apart from the impedance at diverse location place, liquid crystal lens center;
Repeating step 2033-step 2035, until the fair curve and the ideal curve that obtain match, contrast now the first transparency high layer apart from the resistance value at diverse location place, liquid crystal lens center and the original impedance value of described the first transparency high layer apart from diverse location place, liquid crystal lens center, the impedance correction coefficient of acquisition the first transparency high layer.
Preferably, the first transparency high layer is comprised apart from the impedance correction at diverse location place, liquid crystal lens center:
The region that need to reduce in described the first transparency high layer impedance, increases transparent low balk ring.
Preferably, described transparent low balk ring be shaped as annulus.
Preferably, described transparent low balk ring along the resistance of direction of current be not more than described the first transparency high layer in same position along 10% of direction of current resistance.
Preferably, the width range 0 μ m-5 μ m of described transparent low balk ring, comprises right-hand member point value.
Preferably, the first transparency high layer is also revised and is comprised apart from the impedance at diverse location place, liquid crystal lens center:
Etching is carried out in the region that need to improve described the first transparency high layer impedance, the region division annular groove that need to improve in described the first transparency high layer impedance.
A kind of liquid crystal lens, utilizes method for making described in above-mentioned any one to make, and comprising:
The first substrate being oppositely arranged and second substrate;
Liquid crystal layer between described first substrate and second substrate;
Be positioned at the alignment film of described liquid crystal layer towards described first substrate and second substrate one side;
Be positioned at the second transparency high layer of described first substrate towards described liquid crystal layer one side, the optical path difference in the ideal distribution curve of the distribution of impedance in described the second transparency high layer and diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference distributes and matches;
Be positioned at first electrode and second electrode of described first substrate towards described the second transparency high layer one side, wherein, described the second electrode is ring electrode, and described the first electrode is transparency electrode, and is positioned at the annular region of described the second electrode;
Be positioned at the third electrode of described second substrate towards described liquid crystal layer one side.
Preferably, between described the first electrode and described the second transparency high layer, be provided with insulation course.
Preferably, described the second electrode is low resistance electrode, and is directly electrically connected with described the second transparency high layer.
Preferably, described the second electrode and described the second transparency high layer are positioned at same layer.
Preferably, described the second electrode and described the second transparency high layer are positioned at different layers.
Compared with prior art, technique scheme has the following advantages:
The technical scheme that the embodiment of the present invention provides, comprising: step 1: obtain the ideal distribution curve of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, be designated as ideal curve; Step 2: make the second transparency high layer according to described ideal curve, the distribution of impedance in described the second transparency high layer and the optical path difference in described ideal curve distribute and match; Step 3: utilize described the second transparency high layer to make liquid crystal lens.
As from the foregoing, in the technical scheme that the embodiment of the present invention provides, distribution of impedance in described the second transparency high layer and the optical path difference in described ideal curve distribute and match, thereby make to utilize in the liquid crystal lens of described the second transparency high layer making, ideal distribution curves degree apart from diverse location place, liquid crystal lens center optical path difference distribution curve and diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference is higher, has improved the utilization factor of optical path difference in described liquid crystal lens.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the distribution curve schematic diagram of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, wherein, curve 1 is the ideal distribution curve synoptic diagram of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, and curve 2 is the actual distribution curve synoptic diagram of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference in prior art;
The liquid crystal lens method for making schematic flow sheet that Fig. 2 provides for one embodiment of the invention;
The structural representation of the liquid crystal lens that Fig. 3 provides for one embodiment of the invention;
In the liquid crystal lens that Fig. 4 provides for one embodiment of the invention, the structural representation of the second transparency high layer;
In the liquid crystal lens that Fig. 5 provides for one embodiment of the invention, the vertical view of the second transparency high layer;
In the liquid crystal lens that Fig. 6 provides for one embodiment of the invention, the amplification plan view of annular groove in the second transparency high layer;
The partial structurtes schematic diagram that Fig. 7 is the liquid crystal lens that provides in another embodiment of the present invention;
The liquid crystal lens that Fig. 8 provides for the embodiment of the present invention is at the distribution curve schematic diagram of diverse location place, middle distance liquid crystal lens center optical path difference, wherein, curve 3 is the ideal distribution curve synoptic diagram of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, curve 4 is in the embodiment of the present invention in liquid crystal lens, apart from the actual distribution curve synoptic diagram of diverse location place, liquid crystal lens center optical path difference;
The optical path difference utilization factor contrast table of liquid crystal lens in the liquid crystal lens that Fig. 9 provides for the embodiment of the present invention and prior art.
Embodiment
Just as described in the background section, in prior art, the optical path difference utilization factor of liquid crystal lens is lower.
Inventor studies discovery, and this is because the utilization factor of the optical path difference of liquid crystal lens is determined by the characteristic of liquid crystal molecule in liquid crystal layer and the voltage that is applied to liquid crystal layer two ends.In the time that the liquid crystal molecule in liquid crystal layer all overturns, the optical path difference of liquid crystal lens is maximum optical path difference: in liquid crystal layer, the refractive index △ n of liquid crystal molecule is multiplied by the thickness d of liquid crystal lens.But in the time that liquid crystal layer two ends apply voltage, because liquid crystal layer is provided with alignment film towards described upper substrate and infrabasal plate one side, the molecule in liquid crystal layer can not all overturn, but according to certain distribution upset, participate in realizing liquid crystal lens.
It should be noted that, want to realize liquid crystal lens, require the voltage at the diverse location place at liquid crystal layer two ends to have specific voltage to distribute.As shown in Figure 1, Fig. 1 shows the distribution curve schematic diagram of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, wherein, curve 1 is the ideal distribution curve synoptic diagram of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, and curve 2 is the actual distribution curve synoptic diagram of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference in prior art.As seen from Figure 1, compared to the optical path difference ideal distribution curve of liquid crystal lens, the rate of change of liquid crystal lens of the prior art subregion optical path difference is very fast, the voltage changing rate that is its liquid crystal layer two ends is very fast, and the rate of change of subregion optical path difference is slower, the voltage changing rate that is its liquid crystal layer two ends is slower, make the actual distribution curves degree of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference in the ideal distribution curve of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference and prior art poor, thereby cause the optical path difference utilization factor of liquid crystal lens in prior art lower.
In view of this, the embodiment of the present invention provides a kind of method for making of liquid crystal lens, comprising:
Step 1: obtain the ideal distribution curve of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, be designated as ideal curve;
Step 2: make the second transparency high layer according to described ideal curve, the distribution of impedance in described the second transparency high layer and the optical path difference in described ideal curve distribute and match;
Step 3: utilize described the second transparency high layer to make liquid crystal lens.
Accordingly, the embodiment of the present invention also provides a kind of liquid crystal lens, and described liquid crystal lens utilizes above-mentioned liquid crystal method for making to make, and comprising:
The first substrate being oppositely arranged and second substrate;
Liquid crystal layer between described first substrate and second substrate;
Be positioned at the alignment film of described liquid crystal layer towards described first substrate and second substrate one side;
Be positioned at the second transparency high layer of described first substrate towards described liquid crystal layer one side, the optical path difference in the ideal distribution curve of the distribution of impedance in described the second transparency high layer and diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference distributes and matches;
Be positioned at first electrode and second electrode of described first substrate towards described the second transparency high layer one side, wherein, described the second electrode is ring electrode, and described the first electrode is transparency electrode, and is positioned at the annular region of described the second electrode;
Be positioned at the third electrode of described second substrate towards described liquid crystal layer one side.
Because the electric capacity in impedance and the device of the second transparency high layer forms RC discharge loop, the RC difference of diverse location, to driving the amplitude of signal different with phase change degree, cause the voltage effective value difference of diverse location AC signal, thereby the rollover states of liquid crystal molecule in liquid crystal layer is distributed by the rule of RC circuit, therefore, change the impedance at described the second transparency high layer distance different distance place, described liquid crystal lens center, can change the rollover states of the liquid crystal molecule at diverse location place, liquid crystal lens center described in described liquid crystal layer middle distance.
And in the liquid crystal lens method for making that the embodiment of the present invention provides, distribution of impedance in described the second transparency high layer and the optical path difference in described ideal curve distribute and match, thereby make to utilize in the liquid crystal lens of described the second transparency high layer making, ideal distribution curves degree apart from diverse location place, liquid crystal lens center optical path difference distribution curve and diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference is higher, has improved the utilization factor of optical path difference in described liquid crystal lens.
For above-mentioned purpose of the present invention, feature and advantage can more be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Set forth detail in the following description so that fully understand the present invention.But the present invention can be different from alternate manner described here and implements with multiple, and those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that.Therefore the present invention is not subject to the restriction of following public concrete enforcement.
As shown in Figure 2, the embodiment of the present invention provides a kind of method for making of liquid crystal lens, comprising:
Step 1: obtain the ideal distribution curve of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, be designated as ideal curve, with reference to the curve 1 in figure 1.
In one embodiment of the invention, described ideal curve is that described liquid crystal lens is the optical path difference distribution curve under 10D at diopter, in another embodiment of the present invention, described ideal curve can also be the optical path difference distribution curve under other diopters such as 9D, 9.5D or 8D at diopter for described liquid crystal lens, the present invention does not limit this, specifically depends on the circumstances.
Step 2: make the second transparency high layer according to described ideal curve, the distribution of impedance in described the second transparency high layer and the optical path difference in described ideal curve distribute and match.
In one embodiment of the invention, making the second transparency high layer according to described ideal curve comprises:
Step 201: obtain with reference to liquid crystal lens, be describedly designated as the first transparency high layer with reference to the transparency high layer in liquid crystal lens.Wherein, described can be arbitrary liquid crystal lens of the prior art with reference to liquid crystal lens, and the present invention does not limit this.
Preferably, in one embodiment of the invention, in described the first transparency high layer, impedance phase is same everywhere, in other embodiments of the invention, in described the first transparency high layer, impedance everywhere can be not identical yet, and the present invention does not limit this, specifically depends on the circumstances.It should be noted that, when in described the first transparency high layer, impedance phase is simultaneously everywhere, impedance everywhere in described the first transparency high layer is just identical in theory, be subject to the restriction of concrete manufacture craft, in described the first transparency high layer, impedance relative size is everywhere stochastic distribution, instead of strictly identical.
Step 202: detect with reference to liquid crystal lens described, obtain the described distribution curve with reference to diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, be designated as reference curve, with reference to the curve 2 in figure 1.It should be noted that, described reference curve and described ideal curve are the optical path difference distribution curve under same diopter.
Owing to detecting with reference to liquid crystal lens described, obtain the method for the described distribution curve with reference to diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference for conventionally known to one of skill in the art, the present invention is no longer described in detail this.
Step 203: contrast described reference curve and ideal curve, obtain diverse location place, liquid crystal lens middle distance liquid crystal lens center, the impedance correction coefficient of the first transparency high layer.
In one embodiment of the invention, contrast described reference curve and ideal curve, obtain diverse location place, liquid crystal lens middle distance liquid crystal lens center, the impedance correction coefficient of the first transparency high layer comprises:
Step 2031: contrast described reference curve and ideal curve, obtain the correction factor of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference;
Step 2032: according to the correction factor of diverse location place, described liquid crystal lens middle distance liquid crystal lens center optical path difference, the first transparency high layer is revised apart from the impedance at diverse location place, liquid crystal lens center;
Step 2033: obtain the distribution curve of diverse location place, the liquid crystal lens middle distance liquid crystal lens center optical path difference of utilizing revised the first transparency high layer making, be designated as fair curve;
Step 2034: contrast described reference curve and fair curve, regain the correction factor of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference;
Step 2035: according to the correction factor of diverse location place, the liquid crystal lens middle distance liquid crystal lens center optical path difference regaining, revised the first transparency high layer is revised again apart from the impedance at diverse location place, liquid crystal lens center;
Repeating step 2033-step 2035, until the fair curve and the ideal curve that obtain match, contrast now the first transparency high layer apart from the resistance value at diverse location place, liquid crystal lens center and the original impedance value of described the first transparency high layer apart from diverse location place, liquid crystal lens center, the impedance correction coefficient of acquisition the first transparency high layer.
In a specific embodiment of the present invention, it is the optical path difference distribution curve obtaining under 10D that described reference curve and described ideal curve are diopter, therefore in the present embodiment, the impedance correction coefficient of the first transparency high layer of acquisition is also for diopter is the impedance correction coefficient obtaining under 10D.
It should be noted that, in a preferred embodiment of the invention, after the impedance correction coefficient of described the first transparency high layer of acquisition is also for diopter the impedance correction coefficient obtaining under 10D, need to verify this correction factor, verify under other diopters, utilize after this correction factor first transparency high layer make the optical path difference distribution curve of liquid crystal lens and the difference of ideal curve whether at RMS (Root Mean Square, be root-mean-square value) in preset range, if not in RMS preset range, again obtain the correction factor of described the first transparency high layer, if in RMS preset range, carry out next step.Preferably, described RMS preset range is for being not more than 0.1.
Also it should be noted that, in embodiments of the present invention, described fair curve and described ideal curve match, can fit like a glove for described fair curve and described ideal curve, also can be that described fair curve and described ideal curve are approximate coincide, the present invention does not limit this, as long as ensure to improve the distribution curve of diverse location place, the liquid crystal lens middle distance liquid crystal center optical path difference of utilizing this method for making making and the goodness of fit of ideal curve, thereby improve the optical path difference utilization factor of the liquid crystal lens that utilizes this method for making making.
Step 204: according to diverse location place, liquid crystal lens middle distance liquid crystal lens center, the impedance correction coefficient of the first transparency high layer, revises apart from the resistance value at diverse location place, liquid crystal lens center the first transparency high layer, obtains the second transparency high layer;
In one embodiment of the invention, the first transparency high layer is comprised apart from the impedance correction at diverse location place, liquid crystal lens center: the region that need to reduce in described the first transparency high layer impedance, increases transparent low balk ring.
In an embodiment of the present embodiment, described transparent low balk ring is annulus, thereby in the liquid crystal lens that utility the method is made, the resistance value at distance same distance place, described liquid crystal lens center is identical, the liquid crystal deflecting element state at distance same distance place, described liquid crystal lens center is identical, ensures that the light that sees through described liquid crystal lens converges at same point.It should be noted that, when in the liquid crystal lens that the method for utilizing the embodiment of the present invention to provide is made, when described the second transparency high layer comprises multiple transparent low balk ring, described multiple transparent low balk rings are preferably donut.
On the basis of above-described embodiment, in one embodiment of the invention, described transparent low balk ring along the resistance of direction of current be not more than described the first transparency high layer in same position along 10% of direction of current resistance, but the present invention does not limit this, as long as ensure the region that need to reduce in described the first transparency high layer impedance, increase after transparent low balk ring, can reduce the resistance value in the region that described the first transparency high layer impedance need to reduce.
It should be noted that, in embodiments of the invention, the live width of described transparent low balk ring should be thin as far as possible, utilize with meticulous as far as possible raising in the liquid crystal lens of the method making, the resistance value at distance different distance place, described liquid crystal lens center, improve the goodness of fit of ideal distribution curve with the distribution curve of diverse location place, the liquid crystal lens middle distance liquid crystal lens center optical path difference of utilizing method for making that the embodiment of the present invention provides to make of diverse location place, described liquid crystal lens middle distance liquid crystal lens center optical path difference as far as possible, improve the optical path difference utilization factor of the liquid crystal lens that utilizes method for making that the embodiment of the present invention provides making.
In a preferred embodiment of the invention, the width range 0 μ m-5 μ m of described transparent low balk ring, comprises right-hand member point value, but the present invention do not limit this, specifically depends on the circumstances.
On the basis of above-mentioned arbitrary embodiment, in another embodiment of the present invention, the first transparency high layer is also revised and is comprised apart from the impedance at diverse location place, liquid crystal lens center:
Etching is carried out in the region that need to improve described the first transparency high layer impedance, the region division annular groove that need to improve in described the first transparency high layer impedance.
In an embodiment of the present embodiment, described annular groove is preferably made up of multiple hexagon honeycomb distribution shape grooves, and described multiple hexagon honeycomb distribution shape grooves are preferably with the liquid crystal lens center of circle and are centrosymmetric.And described honeycomb distribution shape groove along the ratio of the size of liquid crystal lens radial direction and the size perpendicular to radial direction meet under impedance needs prerequisite large as far as possible, in the liquid crystal lens that ensures to make, the resistance value at distance same distance place, described liquid crystal lens center is identical, the liquid crystal deflecting element state at distance same distance place, described liquid crystal lens center is identical, ensures that the light that sees through described liquid crystal lens converges at same point.It should be noted that, in the time that described the second transparency high layer comprises multiple annular groove, described multiple annular grooves are preferably annular concentric groove, and described multiple annular groove is preferably all and is centrosymmetric with described liquid crystal lens center.
Also it should be noted that, on the basis of above-described embodiment, the width of described honeycomb distribution shape groove should be thin as much as possible, the resistance value at the liquid crystal lens distance different distance place, described liquid crystal lens center making with meticulous as far as possible reduction, improve the goodness of fit of ideal distribution curve with the distribution curve of diverse location place, the liquid crystal lens middle distance liquid crystal lens center optical path difference of utilizing method for making that the embodiment of the present invention provides to make of diverse location place, described liquid crystal lens middle distance liquid crystal lens center optical path difference as far as possible, improve the optical path difference utilization factor of the liquid crystal lens that utilizes method for making that the embodiment of the present invention provides making.
Step 3: obtain after the second transparency high layer, utilize described the second transparency high layer to make liquid crystal lens.Utilize the method for transparency high layer making liquid crystal lens similar owing to utilizing the second transparency high layer to make in method and the prior art of liquid crystal lens, the present invention is no longer described in detail this.
In sum, the method for making of the liquid crystal lens that the embodiment of the present invention provides, comprising: step 1: obtain the ideal distribution curve of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, be designated as ideal curve; Step 2: make the second transparency high layer according to described ideal curve, the distribution of impedance in described the second transparency high layer and the optical path difference in described ideal curve distribute and match; Step 3: utilize described the second transparency high layer to make liquid crystal lens, thereby make to utilize in the liquid crystal lens of described the second transparency high layer making, ideal distribution curves degree apart from diverse location place, liquid crystal lens center optical path difference distribution curve and diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference is higher, has improved the utilization factor of optical path difference in described liquid crystal lens.
Accordingly, the embodiment of the present invention also provides a kind of liquid crystal lens, and described liquid crystal lens utilizes the method for making that above-mentioned arbitrary embodiment provides to make and obtain.As shown in Figure 3, described liquid crystal lens comprises
The first substrate 1 being oppositely arranged and second substrate 2;
Liquid crystal layer 3 between described first substrate 1 and second substrate 2;
Be positioned at the alignment film 4 of described liquid crystal layer 3 towards described first substrate 1 and second substrate 2 one sides;
Be positioned at the second transparency high layer 5 of described first substrate 1 towards described liquid crystal layer 3 one sides, the optical path difference in the ideal distribution curve of the distribution of impedance in described the second transparency high layer 5 and diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference distributes and matches;
Be positioned at first electrode 6 and second electrode 7 of described first substrate 1 towards described the second transparency high layer 5 one side, wherein, described the second electrode 7 is ring electrode, and described the first electrode 6 is transparency electrode, and is positioned at the annular region of described the second electrode 7;
Be positioned at the third electrode 8 of described second substrate 2 towards described liquid crystal layer 3 one sides.
In one embodiment of the invention, as shown in Figure 4, described the second transparency high layer 5 comprises the first transparency high layer 51 and is positioned at least one transparent low balk ring 52 on described the first transparency high layer 51 surface, thereby reduces the resistance value in described the first transparency high layer 51 middle impedance region to be reduced.
Preferably, in one embodiment of the invention, described transparent low balk ring 52 is annulus, thereby ensure in described liquid crystal lens, the resistance value at distance same distance place, described liquid crystal lens center is identical, the liquid crystal deflecting element state at distance same distance place, described liquid crystal lens center is identical, ensures that the light that sees through described liquid crystal lens converges at same point.It should be noted that, as shown in Figure 5, when in described liquid crystal lens, when described the second transparency high layer 5 comprises multiple transparent low balk ring 52, described multiple transparent low balk rings 52 are preferably donut.
On the basis of above-mentioned arbitrary embodiment, in a preferred embodiment of the invention, described transparent low balk ring 52 along the resistance of direction of current be not more than described the first transparency high layer 51 in same position along 10% of direction of current resistance, but the present invention does not limit this, specifically depend on the circumstances.
It should be noted that, in embodiments of the invention, the live width of described transparent low balk ring 52 should be thin as far as possible, with the resistance value at the described liquid crystal lens distance of meticulous as far as possible raising different distance place, described liquid crystal lens center, improve the goodness of fit of the ideal distribution curve of diverse location place, described liquid crystal lens middle distance liquid crystal lens center optical path difference and the actual distribution curve of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference as far as possible, improve the optical path difference utilization factor of described liquid crystal lens.
In a preferred embodiment of the invention, the width range 0 μ m-5 μ m of described transparent low balk ring 52, comprises right-hand member point value, but the present invention do not limit this, specifically depends on the circumstances.
On the basis of the above-mentioned arbitrary embodiment of the present invention, in one embodiment of the invention, in described the second transparency high layer 5, also comprise at least one annular groove, to improve the resistance value in described the second transparency high layer 5 middle impedance region to be improved, thereby improve the goodness of fit of the ideal distribution curve of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference and the actual distribution curve of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, finally improve the optical path difference utilization factor of described liquid crystal lens.
In one embodiment of the invention, as shown in Figure 6, described annular groove 53 is preferably made up of multiple hexagon honeycomb distribution shape grooves, and described multiple hexagon honeycomb distribution shape grooves are preferably with the liquid crystal lens center of circle and are centrosymmetric.And described honeycomb distribution shape groove along the ratio of the size of liquid crystal lens radial direction and the size perpendicular to radial direction meet under impedance needs prerequisite large as far as possible, to ensure in described liquid crystal lens, the resistance value at distance same distance place, described liquid crystal lens center is identical, the liquid crystal deflecting element state at distance same distance place, described liquid crystal lens center is identical, ensures that the light that sees through described liquid crystal lens converges at same point.It should be noted that, when in described liquid crystal lens, when described the second transparency high layer 5 comprises multiple annular groove 53, described multiple annular grooves 53 are preferably annular concentric groove, and described multiple annular groove is preferably all and is centrosymmetric with described liquid crystal lens center.
Also it should be noted that, on the basis of above-described embodiment, the width of described honeycomb distribution shape groove should be thin as much as possible, with the resistance value at the described liquid crystal lens distance of meticulous as far as possible reduction different distance place, described liquid crystal lens center, improve the goodness of fit of the ideal distribution curve of diverse location place, described liquid crystal lens middle distance liquid crystal lens center optical path difference and the actual distribution curve of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference as far as possible, finally improve the optical path difference utilization factor of described liquid crystal lens.
On the basis of above-mentioned arbitrary embodiment, as shown in Figure 7, in one embodiment of the invention, between described the first electrode 6 and described the second transparency high layer 5, be also provided with insulation course 9.Preferably, in this embodiment, described the second electrode 7 is arranged at the side that described insulation course 9 deviates from 6 layers, described the first electrode, be the side of described insulation course 9 towards described the second transparency high layer 5, thereby ensure that described the second electrode 7 is directly electrically connected with described the second transparency high layer 5, avoid forming electric capacity between described the second electrode 7 and described the second transparency high layer 5, reduce the driving signal effective value of the second electrode 7 regions in described liquid crystal lens, and then cause reduction to be applied to the actual voltage value at the second electrode 7 liquid crystal molecule two ends, region in described liquid crystal lens, reduce the voltage change ratio of the second electrode 7 regions in described liquid crystal lens, reduce the optical path difference rate of change of the second electrode 7 regions, reduce the goodness of fit of the ideal distribution curve of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference and the actual distribution curve of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, the final optical path difference utilization factor that reduces described liquid crystal lens.
It should be noted that, in one embodiment of the invention, described the second electrode 7 can be positioned at same layer with described the second transparency high layer 5, in another embodiment of the present invention, described the second electrode 7 also can be positioned at different layers with described the second transparency high layer 5, the present invention does not limit this, as long as ensure that described the second electrode 7 is directly electrically connected with described the second transparency high layer 5.
As shown in Figure 8, in Fig. 8, illustrate that liquid crystal lens that the embodiment of the present invention provides is at the distribution curve schematic diagram apart from diverse location place, liquid crystal lens center optical path difference, wherein, curve 3 is the ideal distribution curve synoptic diagram of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, curve 4 is in the embodiment of the present invention in liquid crystal lens, apart from the actual distribution curve synoptic diagram of diverse location place, liquid crystal lens center optical path difference.As seen from Figure 8, in the liquid crystal lens that the embodiment of the present invention provides, higher apart from actual distribution curve and its ideal distribution curves degree of diverse location place, liquid crystal lens center optical path difference, thus improve the optical path difference utilization factor of described liquid crystal lens.
As shown in Figure 9, Fig. 9 shows the optical path difference utilization factor contrast table of liquid crystal lens in liquid crystal lens that the embodiment of the present invention provides and prior art, as seen from Figure 9, compared to liquid crystal lens of the prior art, the liquid crystal lens that the embodiment of the present invention provides has been brought up to the utilization factor of its optical path difference more than 69% by of the prior art 45%, make liquid crystal lens that the embodiment of the present invention provides in the situation that ensureing that thickness is constant, by its diopter by～be promoted to～10.5D of 6.5D, or in the situation that ensureing that diopter is constant, effectively reduce the thickness of described liquid crystal lens, improve the transmittance of described liquid crystal lens, improve the problem such as response speed and dispersion of described liquid crystal lens.
In sum, the liquid crystal lens that the embodiment of the present invention provides, the ideal distribution curves degree of its actual distribution curve apart from diverse location place, liquid crystal lens center optical path difference and diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference is higher, has improved the optical path difference utilization factor of described liquid crystal lens.
In this instructions, various piece adopts the mode of going forward one by one to describe, and what each part stressed is and the difference of other parts, between various piece identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to embodiment illustrated herein, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (13)
1. a method for making for liquid crystal lens, is characterized in that, comprising:
Step 1: obtain the ideal distribution curve of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, be designated as ideal curve;
Step 2: make the second transparency high layer according to described ideal curve, the distribution of impedance in described the second transparency high layer and the optical path difference in described ideal curve distribute and match;
Step 3: utilize described the second transparency high layer to make liquid crystal lens.
2. method for making according to claim 1, is characterized in that, makes the second transparency high layer comprise according to described ideal curve:
Step 201: obtain with reference to liquid crystal lens, be describedly designated as the first transparency high layer with reference to the transparency high layer in liquid crystal lens;
Step 202: detect with reference to liquid crystal lens described, obtain the described distribution curve with reference to diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference, be designated as reference curve, described reference curve and described ideal curve are the optical path difference distribution curve under same diopter;
Step 203: contrast described reference curve and ideal curve, obtain diverse location place, liquid crystal lens middle distance liquid crystal lens center, the impedance correction coefficient of the first transparency high layer;
Step 204: according to diverse location place, liquid crystal lens middle distance liquid crystal lens center, the impedance correction coefficient of the first transparency high layer, revises apart from the resistance value at diverse location place, liquid crystal lens center the first transparency high layer, obtains the second transparency high layer.
3. method for making according to claim 2, is characterized in that, contrasts described reference curve and ideal curve, obtains diverse location place, liquid crystal lens middle distance liquid crystal lens center, and the impedance correction coefficient of the first transparency high layer comprises:
Step 2031: contrast described reference curve and ideal curve, obtain the correction factor of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference;
Step 2032: according to the correction factor of diverse location place, described liquid crystal lens middle distance liquid crystal lens center optical path difference, the first transparency high layer is revised apart from the impedance at diverse location place, liquid crystal lens center;
Step 2033: obtain in the liquid crystal lens that utilizes revised the first transparency high layer making, apart from the distribution curve of diverse location place, liquid crystal lens center optical path difference, be designated as fair curve;
Step 2034: contrast described reference curve and fair curve, regain the correction factor of diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference;
Step 2035: according to the correction factor of diverse location place, the liquid crystal lens middle distance liquid crystal lens center optical path difference regaining, revised the first transparency high layer is revised again apart from the impedance at diverse location place, liquid crystal lens center;
Repeating step 2033-step 2035, until the fair curve and the ideal curve that obtain match, contrast now the first transparency high layer apart from the resistance value at diverse location place, liquid crystal lens center and the original impedance value of described the first transparency high layer apart from diverse location place, liquid crystal lens center, the impedance correction coefficient of acquisition the first transparency high layer.
4. method for making according to claim 3, is characterized in that, the first transparency high layer is comprised apart from the impedance correction at diverse location place, liquid crystal lens center:
The region that need to reduce in described the first transparency high layer impedance, increases transparent low balk ring.
5. method for making according to claim 4, is characterized in that, described transparent low balk ring be shaped as annulus.
6. method for making according to claim 5, is characterized in that, described transparent low balk ring along the resistance of direction of current be not more than described the first transparency high layer in same position along 10% of direction of current resistance.
7. method for making according to claim 6, is characterized in that, the width range 0 μ m-5 μ m of described transparent low balk ring, comprises right-hand member point value.
8. according to the method for making described in claim 2-7 any one, it is characterized in that, the first transparency high layer also revised and comprised apart from the impedance at diverse location place, liquid crystal lens center:
Etching is carried out in the region that need to improve described the first transparency high layer impedance, the region division annular groove that need to improve in described the first transparency high layer impedance.
9. a liquid crystal lens, utilizes method for making described in claim 1-8 any one to make, and it is characterized in that, comprising:
The first substrate being oppositely arranged and second substrate;
Liquid crystal layer between described first substrate and second substrate;
Be positioned at the alignment film of described liquid crystal layer towards described first substrate and second substrate one side;
Be positioned at the second transparency high layer of described first substrate towards described liquid crystal layer one side, the optical path difference in the ideal distribution curve of the distribution of impedance in described the second transparency high layer and diverse location place, liquid crystal lens middle distance liquid crystal lens center optical path difference distributes and matches;
Be positioned at first electrode and second electrode of described first substrate towards described the second transparency high layer one side, wherein, described the second electrode is ring electrode, and described the first electrode is transparency electrode, and is positioned at the annular region of described the second electrode;
Be positioned at the third electrode of described second substrate towards described liquid crystal layer one side.
10. liquid crystal lens according to claim 9, is characterized in that, between described the first electrode and described the second transparency high layer, is provided with insulation course.
11. liquid crystal lens according to claim 9, is characterized in that, described the second electrode is low resistance electrode, and are directly electrically connected with described the second transparency high layer.
12. liquid crystal lens according to claim 11, is characterized in that, described the second electrode and described the second transparency high layer are positioned at same layer.
13. liquid crystal lens according to claim 11, is characterized in that, described the second electrode and described the second transparency high layer are positioned at different layers.
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| CN113514974A (en) * | 2021-04-19 | 2021-10-19 | 南昌虚拟现实研究院股份有限公司 | Liquid crystal lens zooming processing method and system |
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