CN103913879B - The forming method of liquid crystal lens, 3 d display device and the liquid crystal lens - Google Patents
The forming method of liquid crystal lens, 3 d display device and the liquid crystal lens Download PDFInfo
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Abstract
The present invention discloses a kind of liquid crystal lens, including first substrate and second substrate, spacer, sealant, first electrode layer, the first alignment film, the first liquid crystal layer；3rd substrate, the 3rd alignment film, the 3rd electrode layer forms liquid crystal cells, the 4th alignment film between the axis of adjacent the 3rd electrode layer length direction；3rd alignment film is relative with the first liquid crystal layer, the second electrode lay, the second alignment film, and the second liquid crystal layer is distributed between the second alignment film and the 4th alignment film.The liquid crystal lens that the present invention is provided, shorten the time required when liquid crystal lens are changed between 2D display patterns and 3D display patterns, substantially reduce the response time of liquid crystal lens, improve the smooth degree of picture.Solidified by the liquid crystal molecule of double-layer liquid crystal lens understructure simultaneously and set, reduce each liquid crystal lens unit intersection electrode edge field-effect, improve viewing comfort level.The invention also discloses 3 d display device and the forming method of the liquid crystal lens.
Description
Technical field
The present invention relates to 3D field of display devices, more particularly to liquid crystal lens, 3 d display device and the liquid crystal lens
Forming method.
Background technology
The 3 d display device of Auto-stereo display is realized using liquid crystal lens, is mainly used in liquid crystal layer both sides
Positive and negative electrode is respectively provided with two plate bases, and applies driving voltage of different sizes on Different electrodes, so as in two chip bases
The vertical electric field with varying strength is formed between plate, varifocal liquid crystal lens are formed to drive Liquid Crystal Molecules Alignment.Therefore, only
Need to control the voltage's distribiuting in respective electrode, the index distribution of liquid crystal lens will change accordingly, so as to go out pixel
The distribution for penetrating light is controlled, and realizes Auto-stereo display and 2D/3D free switchings.
As shown in figure 1, Fig. 1 is a kind of common schematic diagram of liquid crystal lens array structure 100, it contains multiple liquid crystal lens
Unit such as L1 and L2 etc., each lens unit such as L1 and L2 etc. have identical structure.Concretely, liquid crystal lens array 100
Comprising first substrate 101 and second substrate 102, with second substrate 102 just to setting, generally glass etc. is saturating for first substrate 101
Bright material.Be provided with first electrode 103 on first substrate 101, first electrode 103 be generally transparent conductive material such as ITO or
Person IZO etc., is provided with second electrode 107 on second substrate 102, second electrode 107 also for transparent conductive material such as ITO or
IZO.Within each lens unit, by taking L1 as an example, first electrode 103 includes the multiples such as S11, S12, S13 ..., S18, S19
The strip electrode for separating at certain intervals and be arrangeding in parallel, the quantity of electrode is generally odd number (to be carried out by taking nine electrodes as an example below
Illustrate), the width of each strip electrode is respectively W (S11), W (S12), W (S13) ..., W (S18), W (S19) etc., it is general and
Speech strip electrode possesses identical width, i.e. and W (S11)=W (S12)=W (S13)=...=W (S18)=W (S19).In two liquid crystal
Between lens unit such as L1 and L2, same strip electrode S19 (S21) is shared.In addition, liquid crystal lens array 100 is also wrapped
The dielectric material 104 being arranged in first electrode 103 is included, the alignment film 108 that is arranged in second electrode 107 and Jie is arranged on
Alignment film 105 on electric material 104 is used to control the orientation of liquid crystal molecule, liquid crystal material 106 be encapsulated in first substrate 101 with
Between second substrate 102.Although being not drawn into Fig. 1, liquid crystal lens array 100 also includes the periphery for liquid crystal material encapsulation
Sealant and for spacer (spacer) for controlling liquid crystal cell thick etc..
As shown in Fig. 2 when needing to carry out 3D displays, in each strip electrode such as S11, the S12 of first electrode 103,
S13,…,S18,S19（By taking lens unit L1 as an example）Apply symmetrical voltage Deng on, second electrode 107 is used as public power
Extremely voltage is set to zero, with positivity liquid crystal material (i.e. △ ε=ε ∥-ε ⊥>0, ε ∥ are Jie in long axis of liquid crystal molecule direction in formula
Electrostrictive coefficient, ε ⊥ are the dielectric coefficient of liquid crystal molecule short-axis direction.) as a example by, V (S11)=V (S19) can be made>V(S12)=V
(S18)>V(S13)=V(S17)>V(S14)=V(S16)>V (S15), i.e., apply on the central electrode S15 of liquid crystal lens unit
Voltage it is minimum, and the voltage applied on the edge electrodes S11 of lens unit, S19 is maximum, from lens centre to rims of the lens
Voltage on each strip electrode is distributed with certain gradient.Due on lens unit edge electrodes apply voltage most
Greatly, the liquid crystal molecule of edge electrodes S11, S19 position is substantially presented vertical direction distribution, and closer to the center of lens unit
Voltage is smaller, therefore liquid crystal molecule can be increasingly prone to horizontal direction arrangement.In each lens unit, due to voltage symmetry
The gradual change of refractive index is presented with the change of electric-field intensity for distribution, liquid crystal material, thus entirely liquid crystal lens permutation possesses preferably
Optical imaging properties.
On the one hand, gradient refractive index lens are GRIN LENS optical path difference formula △ nd=D2/ (8f), wherein △ n=nmax-n
(r)=ne-n (r), ne be liquid crystal material to extraordinary ray refractive index, refractive index n (r) is as the function of position r in diverse location
Can be different.In such as Fig. 2, the edge electrodes such as S11, S19 (S21) of each lens unit and S29 positions are due to liquid crystal
Molecule in vertical state, n (r)=no, and in the central electrode such as S15 of each lens, S25 positions long axis of liquid crystal molecule is presented water
Level state, n (r)=ne.D is the size of each lens unit opening, and f is the focal length of lens unit, and d is thick liquid crystal cell.Thus may be used
Know after liquid crystal material (△ n), focal length (f) determine, liquid crystal cell thickness d is increased with the increase of lens openings D with quadratic relationship
Greatly, liquid crystal lens response time t ∝ d2, cause the liquid crystal lens response time very slow.
On the other hand, each strip electrode such as S11, S12, S13 ... in each liquid crystal lens unit such as L1, S18,
After the symmetrical voltage of the upper applying such as S19, set by voltage optimization, optical path difference distribution in each lens unit can be obtained.For
Reduce the crosstalk that liquid crystal lens cause when 3D shows, it is to avoid left (right side) eye image information perceives reduction by right (left side) eye respectively
The quality of stereoscopic display, it is therefore desirable to which liquid crystal lens match with the distribution of parabolic type lens optical path difference.
Fig. 3 compares common liquid crystal lens optical path difference distribution (analog result) after optimization and parabolic type lens optical path difference point
The difference of cloth.Although as can be seen that liquid crystal lens unit is basic in lens centre by optical path difference distribution curve after voltage optimization
It is close with ideal parabolic, but (identified with square frame in figure) in two liquid crystal lens unit intersections, liquid crystal lens light path difference
Cloth still deviates considerably from ideal parabolic, so as to the 3 d display device for causing to use liquid crystal lens produces larger crosstalk, reduces
Stereo display effect and observation comfort level.
The content of the invention
The invention provides a kind of liquid crystal lens, it is used to improve above-mentioned drawback.
Based on described problem, the invention provides a kind of liquid crystal lens, including the first substrate and the second base being oppositely arranged
Plate, the spacer between first substrate and second substrate, and it is encapsulated in the envelope frame of first substrate and second substrate periphery
Glue, is coated with first electrode layer on the first substrate, the first alignment film is coated with the first electrode layer, and described first matches somebody with somebody
To the first liquid crystal layer being distributed with film after liquid crystal molecule solidification；Also include the 3rd substrate, the side of the 3rd substrate covers
There is the 3rd alignment film, opposite side is coated with the electrode layer of strip the 3rd that equidistant intervals be arranged in parallel, adjacent the 3rd electricity
Liquid crystal cells are formed between the axis of pole layer length direction, the 4th alignment film is coated with the 3rd electrode layer；Described 3rd
Alignment film is relative with first liquid crystal layer, and the second electrode lay, the second electrode lay overlying are coated with the second substrate
The second alignment film is stamped, the second liquid crystal layer is distributed between second alignment film and the 4th alignment film.
Preferably, also including being distributed in parallel with the 3rd electrode layer length direction in first liquid crystal layer and waiting
Apart from the liquid crystal layer of spaced strip the 3rd.
Preferably, the 3rd liquid crystal layer is relative with the position of the 3rd electrode layer and corresponds.
Preferably, the list structure that the first electrode layer be arranged in parallel for equidistant intervals, the first electrode layer with
The 3rd electrode layer position is relative and corresponds.
Preferably, it is provided between adjacent the 3rd electrode layer parallel to the 3rd electrode layer and equidistant intervals
4th electrode layer.
Present invention also offers a kind of 3 d display device, including the liquid crystal lens described in above-mentioned implementation method.
Present invention also offers a kind of forming method of liquid crystal lens, the liquid crystal lens include the first base being oppositely arranged
Plate and second substrate, are coated with first electrode layer on the first substrate, the first alignment film is coated with the first electrode layer,
The first liquid crystal layer after liquid crystal molecule solidification is distributed with first alignment film；Also include second substrate and the 3rd substrate, institute
The side for stating the 3rd substrate is coated with the 3rd alignment film, and opposite side is coated with the electrode of strip the 3rd that equidistant intervals be arranged in parallel
Layer, liquid crystal cells are formed between the axis of adjacent the 3rd electrode layer length direction, are coated with the 3rd electrode layer
4th alignment film；3rd alignment film is relative with first liquid crystal layer, and the second electrode lay is coated with the second substrate,
The second alignment film is coated with the second electrode lay, second is distributed between second alignment film and the 4th alignment film
Liquid crystal layer,
First first electrode layer is formed on the first substrate；
First alignment film is formed in the first electrode layer；
The coating photoresist on first alignment film, the photoresist thickness being coated with is the thickness of first liquid crystal layer
Degree；
The first substrate carries out odd number liquid crystal cells exposure from side by template of light shield, is developed after exposure；
Liquid crystal after being coated with solidification in the odd number liquid crystal cells；
The light shield is translated into a liquid crystal cells along the direction that the liquid crystal cells are arranged；
Even numbers liquid crystal cells exposure is carried out by the light shield, is developed after exposure；
Liquid crystal after being coated with solidification in the even numbers liquid crystal cells, the first liquid crystal is formed with the odd number liquid crystal cells
Layer；
In the glass substrate of the alignment film of the first liquid crystal layer overlying cover strip the 5th, the friction orientation of the 5th alignment film
Friction orientation with first alignment film is oppositely arranged, and relative with first liquid crystal layer with the 5th alignment film, leads to
Cross orientation under high temperature so that the long axis of liquid crystal molecule in first liquid crystal layer is arranged along the frictional direction of first alignment film
Row, carry out the first curable liquid crystal layer afterwards；
The glass substrate is peeled off from first liquid crystal layer, one layer of photoetching is coated with first liquid crystal layer
Glue；
Light shield is covered on the photoresist, and is exposed, developed after exposure；
First dry ecthing removes the photoresist between the odd number liquid crystal cells and the even numbers liquid crystal cells, then removes described
Odd number liquid crystal cells and the photoresist on even numbers liquid crystal cells surface；
The 3rd liquid crystal layer is coated between the odd number liquid crystal cells and the even numbers liquid crystal cells；
By the 3rd baseplate-laminating of the 3rd alignment film described in band on first liquid crystal layer, the 3rd alignment film
It is relative with first liquid crystal layer；
The second alignment film side on the second substrate is relative with the 4th alignment film, and to described second
The second liquid crystal layer is poured between alignment film and the 4th alignment film.
Preferably, first liquid crystal layer is solidified by ultraviolet light.
The liquid crystal lens that the present invention is provided, it is saturating with traditional liquid crystal in the case where the identical focusing power of liquid crystal lens is ensured
Mirror is compared, and the response time can be reduced to original 1/4 by the double-layer liquid crystal lens, shortens liquid crystal lens in 2D display patterns
Required time when being changed and 3D display patterns between, the response time of liquid crystal lens is substantially reduced, improve the smooth journey of picture
Degree.Solidified by the liquid crystal molecule of double-layer liquid crystal lens understructure simultaneously and set, reduce the friendship of each liquid crystal lens unit
Electrode edge field-effect at boundary, reduces the string brought by the problem that optical path difference misfits between liquid crystal cells and parabolic type lens
Disturb, improve viewing comfort level.
Brief description of the drawings
Fig. 1 be in the prior art liquid crystal lens be not powered on pressure in the case of structural representation；
Fig. 2 is structural representation of the liquid crystal lens in the case of making alive in the prior art；
Fig. 3 is the curve of the common liquid crystal lens optical path difference distribution after optimization and the difference of parabolic type lens optical path difference distribution
Figure；
Fig. 4 is the partial structural diagram of liquid crystal lens in embodiment of the present invention；
Fig. 5 is the structural representation of the first liquid crystal layer and the 3rd liquid crystal layer；
Fig. 6 is the partial structural diagram after liquid crystal lens making alive in embodiment of the present invention；
Fig. 7 is the curve map of the first area with second area optical path difference of liquid crystal lens in embodiment of the present invention；
Fig. 8 is second partial structural diagram of liquid crystal lens in embodiment of the present invention；
Fig. 9 is the partial structural diagram of the third liquid crystal lens in embodiment of the present invention；
Figure 10 is schematic diagram of the liquid crystal lens of embodiment of the present invention under 2D display patterns；
Figure 11 is schematic diagram of the liquid crystal lens of embodiment of the present invention under 3D display patterns；
Figure 12~Figure 14 is the schematic diagram of the forming process of the liquid crystal lens of embodiment of the present invention.
Specific embodiment
With reference to Figure of description, specific embodiment of the invention is illustrated.
The invention provides a kind of liquid crystal lens 1000, including the first substrate 1001 and second substrate being oppositely arranged
1002, the spacer between first substrate 1001 and second substrate 1002, and it is encapsulated in first substrate 1001 and second
The sealant on the periphery of substrate 1002, is coated with first electrode layer 1003 on first substrate 1001, covered in first electrode layer 1003
There is the first alignment film 1004, the first liquid crystal layer 1005 after liquid crystal molecule solidification is distributed with the first alignment film 1004；Also include
3rd substrate 1008, the side of the 3rd substrate 1008 is coated with the 3rd alignment film 1007, and opposite side is coated with equidistant intervals and puts down
The electrode layer 1009 of strip the 3rd that row is set, forms liquid crystal list between the axis of the adjacent length direction of the 3rd electrode layer 1009
Unit, the 4th alignment film 1010 is coated with the 3rd electrode layer 1009；3rd alignment film 1007 is relative with the first liquid crystal layer 1005, the
The second electrode lay 1011 is coated with two substrates 1002, the second alignment film 1012 is coated with the second electrode lay 1011, second matches somebody with somebody
The second liquid crystal layer 1013 is distributed between the alignment film 1010 of film 1012 and the 4th.
Further, also including being distributed in parallel with the length direction of the 3rd electrode layer 1009 in the first liquid crystal layer 1005 and waiting
Apart from the liquid crystal layer 1006 of spaced strip the 3rd.
Wherein, the 3rd liquid crystal layer 1006 is relative with the position of the 3rd electrode layer 1009 and corresponds.
As shown in figure 4, liquid crystal lens 1000 contain multiple liquid crystal lens unit such as the first liquid crystal cells 1, the second liquid crystal list
Unit 2 and the grade of the 3rd liquid crystal cells 3 (three lens units are only depicted in figure), each liquid crystal cells has identical structure.Tool
Body says that liquid crystal lens 1000 include first substrate 1001, the substrate 1008 of second substrate 1002 and the 3rd.First substrate 1001,
Just to setting, wherein first substrate 1001 is flexible and transparent base material, such as high temperature resistant to the substrate 1008 of second substrate 1002 and the 3rd
PET, the substrate 1008 of second substrate 1002 and the 3rd can be the transparent bases such as glass, and each substrate has same or similar
Refractive index.First electrode layer 1003 is provided with first substrate 1001, first electrode layer 1003 is generally whole face electrically conducting transparent
Material, such as ITO or IZO, without special graph.The first alignment film 1004 is provided with first electrode layer 1003, the
One alignment film 1004 can be the organic materials such as polyimides, and for controlling liquid crystal molecular orientation, the first alignment film 1004 rubs
Wiping direction is parallel with the 2D display module light directions that liquid crystal lens are used, i.e. 2D display modules upper polaroid light transmission shaft side
To.The first liquid crystal layer 1005 is provided with the first alignment film 1004, the 3rd liquid crystal layer 1006 is also included in the first liquid crystal layer
(reference picture 5), wherein the first liquid crystal layer 1005 is positive LJV curing type liquid crystal material, possesses and solid-state, high temperature is presented under normal temperature
Under be melted into liquid crystal state, coated, high temperature is with the characteristic such as UV curable backward；And the 3rd liquid crystal layer 1006 is possess wider
Operating temperature range, normal temperature are in positivity liquid crystal material (the i.e. △ ε=ε ∥-ε ⊥ of liquid crystal state>0, ε ∥ are long axis of liquid crystal molecule in formula
The dielectric coefficient in direction, ε ⊥ are the dielectric coefficient of liquid crystal molecule short-axis direction.).If liquid crystal is sought to non-in the first liquid crystal layer 1005
Ordinary light refractive index is ne (1005), and liquid crystal is no (1006) to ordinary refraction index in the 3rd liquid crystal layer, it is desirable to ne (1005)>no
(1006)。
The second electrode lay 1011, the second electrode lay just are provided with to the side of first substrate 1001 in second substrate 1002
1011 are generally whole face transparent conductive material, such as ITO or IZO, without special graph.Set on the second electrode lay 1011
The second alignment film 1012 is equipped with, the second alignment film 1012 can be the organic materials such as polyimides, for controlling liquid crystal molecule to take
To the frictional direction of the second alignment film 1012 be arranged in parallel with the frictional direction of the first alignment film 1004.
In the 3rd substrate 1008 just to the side of first substrate 1001, the 3rd alignment film 1007, the 3rd alignment film are provided with
1007 can be the organic materials such as polyimides, for controlling liquid crystal molecular orientation, the frictional direction of the 3rd alignment film 1007 with
The frictional direction of the first alignment film 1004 be arranged in parallel.In the 3rd substrate 1008 just to the side of second substrate 1002, it is provided with
3rd electrode layer 1009, the 3rd electrode layer 1009 is transparent conductive material such as ITO or IZO.3rd electrode layer 1009 is by splashing
Penetrate, upper photoresist 1020, exposure, development, etching and the removal master operation such as photoresist 1020 are formed, the 3rd electrode layer 1009
Form strip electrode, each two lens unit such as the first liquid crystal cells 1 and the second liquid crystal cells 2 and the second liquid crystal cells 2 and
3rd liquid crystal cells 3 share the 3rd electrode layer 1009.In the 3rd electrode layer 1009 just to the side of second substrate 1002, set
There is the 4th alignment film 1010, the 4th alignment film 1010 can be the organic materials such as polyimides, for controlling liquid crystal molecular orientation,
The frictional direction of the 4th alignment film 1010 be arranged in parallel with the frictional direction of the first alignment film 1004.
The second liquid crystal layer 1013 is provided between the substrate 1008 of second substrate 1002 and the 3rd, the second liquid crystal layer 1013 can
To select and the identical liquid crystal material of the 3rd liquid crystal layer 1006.In addition, liquid crystal lens 1000 also include first substrate 1001
It is used to encapsulate periphery sealant, the second substrate of the first liquid crystal layer 1005 and the 3rd liquid crystal layer 1006 between the 3rd substrate 1008
1002 and the 3rd encapsulate between substrate 1,008 second liquid crystal layer 1013 periphery sealant and for controlling liquid crystal cell thickness between
Gap (spacer) etc..
Fig. 6 is liquid crystal lens first embodiment liquid crystal molecular orientation schematic diagram under 3D display patterns.With the first liquid crystal
As a example by unit 1, can be using first electrode layer 1003 and the second electrode lay 1011 as common electrode, voltage is set to zero.And the
Apply an identical voltage on three electrode layers 1009, thickness according to the 3rd liquid crystal layer 1006 and the second liquid crystal layer 1013 and
Depending on liquid crystal material characteristic, the voltage should be enough between the electrode layer 1009 of first electrode layer 1003 and the 3rd and in the second electricity
Larger pressure difference is produced between pole layer 1011 and the 3rd electrode layer 1009 so that the positivity liquid crystal material on the 3rd electrode layer 1009
The molecular long axis of material are arranged along the arragement direction of the 3rd electrode layer 1009.
Due to there is larger pressure difference, the liquid of the 3rd liquid crystal layer 1006 between the electrode layer 1009 of first electrode layer 1003 and the 3rd
Brilliant molecular long axis are arranged along the length direction of the 3rd electrode layer 1009, and the first liquid crystal layer 1005 is not due to receiving electricity after ultra-violet curing
Field influence；Due to having larger pressure difference between the electrode layer 1009 of the second electrode lay 1011 and the 3rd, the 3rd electrode layer 1009 it
The long axis of liquid crystal molecule of upper second liquid crystal layer 1013 is arranged along the direction of vertical second liquid crystal layer 1013, in each liquid crystal cells
Within, due to the lateral electric fields between the 3rd electrode layer 1009 and the second electrode lay 1011 as the electrode layer 1009 of distance the 3rd is got over
It is remote then electric field is weaker, cause in each liquid crystal cells, the liquid crystal molecule pressure difference at edge is maximum, and the liquid crystal molecule pressure difference at center is most
Small, pressure difference is distributed with certain gradient from the edge of liquid crystal cells to center so that on the 3rd electrode layer 1009
Long axis of liquid crystal molecule is arranged along the direction of vertical second liquid crystal layer 1013, and closer to liquid crystal cells center, liquid crystal molecule meeting
It is increasingly prone to horizontal direction arrangement.Under 3D display patterns, caused jointly with the second liquid crystal layer 1013 by the first liquid crystal layer 1005
Optical path difference be presented ascending in each liquid crystal cells, then descending gradual change trend, such as Fig. 7, dotted portion in figure
The optical path difference that the first area 1060 of liquid crystal lens 1000 causes is represented, and bold portion is represented by the second of liquid crystal lens 1000
The optical path difference that region 1070 causes.
In the case of focusing power identical, the second liquid crystal layer 1013 of the liquid crystal lens 1000 and the first liquid crystal layer
1005 and the 3rd liquid crystal layer 1006 thickness be respectively general structure liquid crystal lens thickness of liquid crystal layer 1/2, due to liquid crystal ring
T ∝ d between seasonable2, therefore using the structure liquid crystal lens can by the response time shorten to general structure liquid crystal lens ring
Between seasonable 1/4 so that the switching between 2D patterns and 3D patterns becomes more smooth.
For the first liquid crystal layer 1005, the first liquid crystal layer 1005 belongs to uv-curing type liquid crystal, completes orientation and purple
Liquid crystal molecular orientation is no longer influenced by electric field influence after outer solidification, and the 3rd liquid crystal layer 1006 is due to being positivity liquid crystal material, 3D patterns
Can ensure that its molecular long axis is arranged along the direction of vertical 3rd alignment film 1007 by forming larger pressure difference down, it is and general
Structure liquid crystal lens are compared, and less crosstalk is formed between two neighboring liquid crystal cells, and optical path difference distribution is closer to preferably
Parabolic type curve, improves the viewing comfort level under 3D patterns.
Further, as shown in figure 8, being included in an embodiment of the invention：First electrode layer 1003 is equidistant
The list structure of spaced and parallel setting, first electrode layer 1003 is relative with the position of the 3rd electrode layer 1009 and corresponds.At this
It is further to reduce the lateral electric fields between the electrode layer 1009 of first electrode layer 1003 and the 3rd in implementation method, by the first electricity
Pole layer 1003 is set to multiple, between the strip electrode that is spaced apart and alongst extends, each first electrode layer 1003
The spacing of center to center is a width for lens.Each first electrode layer 1003 be located at the 3rd electrode layer 1009 just under
Side, first electrode layer 1003 is less than or equal to width of the 3rd electrode layer 1009 in arragement direction in the width of arragement direction,
First electrode layer 1003 is still set to zero as common electrode voltage.
Further, as shown in figure 9, be provided between the 3rd adjacent electrode layer 1009 parallel to the 3rd electrode layer 1009 and
4th electrode layer 1014 of equidistant intervals.In the present embodiment, the 3rd electrode layer 1009 is in each liquid crystal cells（Such as first
Liquid crystal cells 1）Two electrodes in interior only left and right, in the present embodiment, each liquid crystal list are set to by the 3rd electrode layer 1009
Unit is contained within multiple strip electrodes for separating at certain intervals and alongst extending in arragement direction, and the of lens centre
Four electrode layers 1014 are less than the width of each the 3rd electrode layer 1009 in the width of arragement direction, by the 4th electrode layer 1014
The upper voltage for applying graded, the further change of gentle each liquid crystal cells internal electric field gradient.
Figure 10 is schematic diagram of the liquid crystal lens under 2D display patterns.When first electrode layer 1003, the second electrode lay 1011
And the 3rd on electrode layer 1009 not applied voltage when, the liquid crystal in whichever liquid crystal layer, molecular long axis are each along each
Alignment film frictional direction is orientated, and the light for vertically being injected from 2D display modules does not produce optical path difference.Under 2D display patterns, liquid
Brilliant lens 1000 are not modulated to original image, and brightness, resolution ratio of whole liquid crystal lens 3 d display device etc. are main special
Property parameter is substantially unaffected.
Figure 11 is schematic diagram of the liquid crystal lens under 3D display patterns.When first electrode layer 1003, the second electrode lay 1011
And the 3rd when applying corresponding driving voltage on electrode layer 1009, except the uv-curing type liquid crystal molecule of the first liquid crystal layer 1005 takes
Outside constant, the molecular long axis of the 3rd liquid crystal layer 1006 are oriented perpendicularly to the surface of the 3rd alignment film 1007, the second liquid crystal layer 1013
Middle liquid crystal produces different molecularly oriented under the driving of gradient electric field so that parabolic type light is produced in each liquid crystal lens unit
Path difference.Under 3D display patterns, each liquid crystal cells plays the function of a similar convex lens, realizes right and left eyes image point
From so as to watch stereoeffect.
Present invention also offers the liquid crystal lens 1000 in a kind of 3 d display device, including above-mentioned implementation method.
As shown in Figure 12~Figure 14, present invention also offers a kind of forming method of liquid crystal lens 1000, liquid crystal lens bag
The first substrate 1001 and second substrate 1002 being oppositely arranged are included, first electrode layer 1003 is coated with first substrate 1001, the
The first alignment film 1004 is coated with one electrode layer 1003, after liquid crystal molecule solidification first is distributed with the first alignment film 1004
Liquid crystal layer 1005；Also include the 3rd substrate 1008, the side of the 3rd substrate 1008 is coated with the 3rd alignment film 1007, and opposite side covers
It is stamped the electrode layer 1009 of strip the 3rd that equidistant intervals be arranged in parallel, the axis of the adjacent length direction of the 3rd electrode layer 1009
Between form liquid crystal cells, be coated with the 4th alignment film 1010 on the 3rd electrode layer 1009；3rd alignment film 1007 and the first liquid
Crystal layer 1005 is relative, and the second electrode lay 1011 is coated with second substrate 1002, second is coated with the second electrode lay 1011 and is matched somebody with somebody
To film 1012, the second liquid crystal layer 1013 is distributed between the second alignment film 1012 and the 4th alignment film 1010,
First electrode layer 1003 is formed first on first substrate 1001；
The first alignment film 1004 is formed in first electrode layer 1003；
The coating photoresist on the first alignment film 1004, the photoresist thickness being coated with is the thickness of the first liquid crystal layer 1005
Degree；
First substrate 1001 from side with light shield 1021 for template carries out odd number liquid crystal cells exposure, shown after exposure
Shadow；
Liquid crystal after being coated with solidification in odd number liquid crystal cells；
Light shield 1021 is translated into a liquid crystal cells along the direction that liquid crystal cells are arranged；
Even numbers liquid crystal cells exposure is carried out by light shield 1021, is developed after exposure；
Liquid crystal after being coated with solidification in even numbers liquid crystal cells, the first liquid crystal layer 1005 is formed with odd number liquid crystal cells；
In the glass substrate of the alignment film of 1005 overlying cover strip of the first liquid crystal layer the 5th, the friction orientation of the 5th alignment film and
The friction orientation of one alignment film 1004 is oppositely arranged, and relative with the first liquid crystal layer 1005 with the 5th alignment film, by under high temperature
Orientation so that the long axis of liquid crystal molecule in the first liquid crystal layer 1005 is arranged along the frictional direction of the first alignment film, is carried out afterwards
First liquid crystal layer 1005 solidifies；
Glass substrate is peeled off from the first liquid crystal layer 1005, one layer of photoresist is coated with the first liquid crystal layer 1005
1020；
Light shield 1021 is covered on photoresist 1020, and is exposed, developed after exposure；
Photoresist 1020 first between dry ecthing removal odd number liquid crystal cells and even numbers liquid crystal cells, then remove odd number liquid
Brilliant unit and the photoresist 1020 on even numbers liquid crystal cells surface；
The 3rd liquid crystal layer 1006 is coated between odd number liquid crystal cells and even numbers liquid crystal cells；
3rd substrate 1008 of the alignment film 1007 of band the 3rd is fitted on the first liquid crystal layer 1005, the 3rd alignment film 1007
It is relative with the first liquid crystal layer 1005；
The side of the second alignment film 1012 on second substrate 1002 is relative with the 4th alignment film, and to the second alignment film
1012 and the 4th pour into the second liquid crystal layer 1013 between alignment film 1010.
Preferably, the first liquid crystal layer 1005 can be solidified by ultraviolet light.
The liquid crystal lens that the present invention is provided, it is saturating with traditional liquid crystal in the case where the identical focusing power of liquid crystal lens is ensured
Mirror is compared, and the response time can be reduced to original 1/4 by the double-layer liquid crystal lens, shortens liquid crystal lens in 2D display patterns
Required time when being changed and 3D display patterns between, the response time of liquid crystal lens is substantially reduced, improve the smooth journey of picture
Degree.Solidified by the liquid crystal molecule of double-layer liquid crystal lens understructure simultaneously and set, reduce the friendship of each liquid crystal lens unit
Electrode edge field-effect at boundary, reduces the string brought by the problem that optical path difference misfits between liquid crystal cells and parabolic type lens
Disturb, improve viewing comfort level.
The above implementation method only expresses several embodiments of the invention, and its description is more specific and detailed, but
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for the ordinary skill people of this area
For member, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to of the invention
Protection domain.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (4)
1. a kind of liquid crystal lens, including the first substrate and second substrate being oppositely arranged, positioned at first substrate and second substrate it
Between spacer, and be encapsulated in the sealant of first substrate and second substrate periphery, be coated with first on the first substrate
Electrode layer, is coated with the first alignment film in the first electrode layer, after liquid crystal molecule solidification is distributed with first alignment film
The first liquid crystal layer；Also include the 3rd substrate, the side of the 3rd substrate is coated with the 3rd alignment film, and opposite side is coated with
Apart from the electrode layer of strip the 3rd of spaced and parallel setting, liquid is formed between the axis of adjacent the 3rd electrode layer length direction
Brilliant unit, the 4th alignment film is coated with the 3rd electrode layer；3rd alignment film is relative with first liquid crystal layer, institute
State and the second electrode lay is coated with second substrate, the second alignment film, second alignment film are coated with the second electrode lay
The second liquid crystal layer is distributed between the 4th alignment film；Characterized in that,
Also include being distributed in parallel with the 3rd electrode layer length direction in first liquid crystal layer and equidistant intervals set
The liquid crystal layer of strip the 3rd put；
3rd liquid crystal layer is relative with the position of the 3rd electrode layer and corresponds；
The list structure that the first electrode layer be arranged in parallel for equidistant intervals, the first electrode layer and the 3rd electrode
Layer position is relative and corresponds；
The 4th electrode layer parallel to the 3rd electrode layer and equidistant intervals is provided between adjacent the 3rd electrode layer.
2. a kind of 3 d display device, it is characterised in that including the liquid crystal lens described in claim 1.
3. a kind of forming method of liquid crystal lens, the liquid crystal lens include the first substrate and second substrate that are oppositely arranged, institute
State and first electrode layer is coated with first substrate, the first alignment film, first alignment film are coated with the first electrode layer
On be distributed with liquid crystal molecule solidification after the first liquid crystal layer；Also include second substrate and the 3rd substrate, the one of the 3rd substrate
Side is coated with the 3rd alignment film, and opposite side is coated with the electrode layer of strip the 3rd that equidistant intervals be arranged in parallel, and adjacent is described
Liquid crystal cells are formed between the axis of the 3rd electrode layer length direction, the 4th alignment film is coated with the 3rd electrode layer；Institute
State the 3rd alignment film relative with first liquid crystal layer, the second electrode lay, the second electrode are coated with the second substrate
The second alignment film is coated with layer, the second liquid crystal layer is distributed between second alignment film and the 4th alignment film, it is special
Levy and be,
First electrode layer is formed on the first substrate；
First alignment film is formed in the first electrode layer；
The coating photoresist on first alignment film, the photoresist thickness being coated with is the thickness of first liquid crystal layer；
The first substrate carries out odd number liquid crystal cells exposure from side by template of light shield, is developed after exposure；
Liquid crystal after being coated with solidification in the odd number liquid crystal cells；
The light shield is translated into a liquid crystal cells along the direction that the liquid crystal cells are arranged；
Even numbers liquid crystal cells exposure is carried out by the light shield, is developed after exposure；
Liquid crystal after being coated with solidification in the even numbers liquid crystal cells, the first liquid crystal layer is formed with the odd number liquid crystal cells；
In the glass substrate of the alignment film of the first liquid crystal layer overlying cover strip the 5th, the friction orientation of the 5th alignment film and institute
The friction orientation for stating the first alignment film is oppositely arranged, and relative with first liquid crystal layer with the 5th alignment film, by height
The lower orientation of temperature so that the long axis of liquid crystal molecule in first liquid crystal layer is arranged along the frictional direction of first alignment film,
The first curable liquid crystal layer is carried out afterwards；
The glass substrate is peeled off from first liquid crystal layer, one layer of photoresist is coated with first liquid crystal layer；
Light shield is covered on the photoresist, and is exposed, developed after exposure；
First dry ecthing removes the photoresist between the odd number liquid crystal cells and the even numbers liquid crystal cells, then removes the odd number
Liquid crystal cells and the photoresist on even numbers liquid crystal cells surface；
The 3rd liquid crystal layer is coated between the odd number liquid crystal cells and the even numbers liquid crystal cells；
By the 3rd baseplate-laminating of the 3rd alignment film described in band on first liquid crystal layer, the 3rd alignment film and institute
State the first liquid crystal layer relative；
The second alignment film side on the second substrate is relative with the 4th alignment film, and to second orientation
The second liquid crystal layer is poured between film and the 4th alignment film.
4. the forming method of liquid crystal lens as claimed in claim 3, it is characterised in that first liquid crystal layer passes through ultraviolet light
Irradiation is solidified.
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| CN201410147974.2A CN103913879B (en) | 2014-04-14 | 2014-04-14 | The forming method of liquid crystal lens, 3 d display device and the liquid crystal lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104494280B (en) * | 2015-01-09 | 2016-05-11 | 重庆卓美华视光电有限公司 | A kind of stripping off device of liquid crystal lens pillar film |
| CN105929618A (en) * | 2016-06-20 | 2016-09-07 | 宁波万维显示科技有限公司 | Liquid crystal fresnel lens and preparation method thereof |
| CN106950776A (en) * | 2017-04-12 | 2017-07-14 | 上海天马微电子有限公司 | Guest-host type liquid crystal device and its manufacture method |
| CN110928057B (en) * | 2019-12-12 | 2020-12-08 | Tcl华星光电技术有限公司 | Liquid crystal display panel |
| CN114859607A (en) * | 2022-04-25 | 2022-08-05 | 北京京东方技术开发有限公司 | Superlens, manufacturing method thereof and display device |
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| US5625474A (en) * | 1995-06-02 | 1997-04-29 | Sharp Kabushiki Kaisha | Full-color liquid crystal display device and fabrication process therefor |
| CN101995692A (en) * | 2009-08-17 | 2011-03-30 | 鸿富锦精密工业（深圳）有限公司 | Three-dimensional image display and three-dimensional image forming method |
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