CN206162019U - Liquid crystal lens array and three -dimensional display device - Google Patents
Liquid crystal lens array and three -dimensional display device Download PDFInfo
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- CN206162019U CN206162019U CN201621154325.6U CN201621154325U CN206162019U CN 206162019 U CN206162019 U CN 206162019U CN 201621154325 U CN201621154325 U CN 201621154325U CN 206162019 U CN206162019 U CN 206162019U
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Abstract
The utility model provides a liquid crystal lens array and three -dimensional display device belongs to and shows technical field. The utility model provides a pair of the liquid crystal lens array array includes first base plate, the relative second base plate that sets up with first base plate and presss from both sides locates the liquid crystal layer between first base plate and the second base plate. The surface that first base plate is close to the liquid crystal layer is provided with a plurality of array distribution's of being first electrode, and the surface that the second base plate is close to the liquid crystal layer is provided with the second electrode. An electrode package draws together at least two rings form electrode, presss from both sides between the adjacent two rings form electrode and is equipped with the insulating layer, and just at least two rings form electrode overlaps in the projection of liquid crystal layer layer upon layer to be put. The utility model provides an another kind of liquid crystal lens array array, its electrode package draw together cyclic annular electrode and set up the small circle of cyclic annular electrode inside and with cyclic annular ground electrode through's spiral electrode. Additionally, the utility model discloses still provide the stereoscopic display device that adopts above -mentioned liquid crystal lens array array, the 3D who has increased the stereoscopic display device effectively watches the visual angle.
Description
Technical field
This utility model belongs to display technology field, in particular to a kind of liquid crystal lens array and stereo display dress
Put.
Background technology
Among the various technologies for realizing stereo display, for comparing spectacle 3D Display Technique, bore hole 3D is because without the need for it
The convenience of his auxiliary equipment and become the focus of 3D Display Technique researchs using upper advantage, bore hole 3D 3 d display device exists
The application of individual consumer's goods field and commercial kitchen area is also increasingly extensive, and such as small size bore hole 3D mobile phone, small-medium size bore hole 3D are put down
Plate and large scale bore hole 3D advertisement machine etc..
In the various technologies that bore hole 3D shows are realized, disparity barrier technology is the most ripe, used as disparity barrier technology
One kind, liquid crystal slit grating 3 d display device is high because of processing procedure and existing LCD producing lines compatibility, and yield is high and with low cost, city
Field occupation rate is higher.Other bore hole 3D stereo display technique such as liquid crystal lens (LC lens) technologies and birefringent lens array
(Birefringent Lens Array) technology has high brightness characteristic when 3D shows, although at present because of material and processing procedure etc.
Many-sided reason causes yield relatively low, and cost remains high, and its development prospect is but still had an optimistic view of.
Because existing 3 d display device adopts column liquid crystal lens array mostly so that existing 3 d display device
It is limited to the relative position of observer and 3 d display device.Specifically, after the position of 3 d display device determines, liquid crystal
The direction of lens arra also determines that observer can only in particular directions see stereo display, when observer is relative to vertical
During the positional deviation specific direction of body display device, because 3 d display device carries out the refractive index of various location when 3D shows
Difference, causes the aberration of 3 d display device larger, it is impossible to obtain good 3D display effects.
Utility model content
In view of this, a purpose of the present utility model is to provide a kind of liquid crystal lens array and 3 d display device,
So that there is larger 3D viewing visual angles using the 3 d display device of the liquid crystal lens array.
To achieve these goals, the technical solution adopted in the utility model is as follows：
In a first aspect, this utility model provides a kind of liquid crystal lens array, including first substrate and the first substrate
The second substrate being oppositely arranged and the liquid crystal layer being located between the first substrate and the second substrate.The first substrate
Surface near the liquid crystal layer is provided with multiple first electrodes in array distribution, and the second substrate is near the liquid crystal layer
Surface be provided with second electrode.The plurality of first electrode in array distribution is divided into the liquid crystal lens array multiple
Liquid crystal lens unit in array distribution.The first electrode includes at least two ring electrodes, at least two ring-types electricity
Pole is located on different layers respectively, and insulating barrier is folded between two neighboring ring electrode with least two ring-type that is electrically insulated
Electrode, at least two ring electrode is nested with layer by layer in the projection of the liquid crystal layer.
Further, the central point of at least two ring electrode is respectively positioned on the same vertical line of the liquid crystal layer.
Further, the maximum ring electrode of internal diameter is outer ring electrode at least two ring electrode.Described in each
The outer ring electrode of first electrode is circumscribed from the outer ring electrode of adjacent first electrode to be connected to realize the outer shroud of different first electrodes
The conducting of electrode.
Further, at least two ring electrode includes the first ring electrode, the second ring electrode and the 3rd ring-type
Electrode.First ring electrode, the second ring electrode and the 3rd ring electrode are located at respectively on different layers, first ring-type
The first insulating barrier, second ring electrode and the 3rd ring electrode are folded between electrode and second ring electrode
Between be folded with the second insulating barrier.Wherein, first ring electrode is formed at the close described liquid crystal layer of the first substrate
Surface, second ring electrode is formed at the surface of the close described liquid crystal layer of first insulating barrier, the 3rd ring
Shape electrode is formed at the surface of the close described liquid crystal layer of second insulating barrier.
Second aspect, this utility model embodiment additionally provides another kind of liquid crystal lens array, including first substrate and institute
State the second substrate that first substrate is oppositely arranged and the liquid crystal layer being located between the first substrate and the second substrate.Institute
State first substrate and the surface of the liquid crystal layer is provided with multiple first electrodes in array distribution, the second substrate is close
The surface of the liquid crystal layer is provided with second electrode, and the plurality of first electrode in array distribution is by the liquid crystal lens array
It is divided into multiple liquid crystal lens units in array distribution.The first electrode includes ring electrode and is arranged on the ring-type
Spiral electrode inside the roundlet of electrode, the spiral electrode is turned on the ring electrode.
Further, the ring electrode of the ring electrode of each first electrode and adjacent first electrode
It is circumscribed to connect to realize the conducting of the different first electrodes.
The third aspect, this utility model additionally provides a kind of 3 d display device, including display floater and above-mentioned first party
The liquid crystal lens array that face embodiment is provided, the liquid crystal lens array is arranged on said display panel.
Further, the display floater includes multiple pixel cells, and the shape of the plurality of pixel cell is circle.
Each liquid crystal lens unit of described liquid crystal lens array covers one or more described pixel cells.
Fourth aspect, this utility model additionally provides another kind of 3 d display device, including display floater and above-mentioned second
The liquid crystal lens array that aspect embodiment is provided, the liquid crystal lens array is arranged on said display panel.
Further, the display floater includes multiple pixel cells, and the shape of the plurality of pixel cell is circle.
Each liquid crystal lens unit of described liquid crystal lens array covers one or more described pixel cells.
The liquid crystal lens array of two kinds of first electrodes with particular design that this utility model embodiment is provided.It is above-mentioned
In two kinds of liquid crystal lens arrays, multiple first electrodes in array distribution are divided into liquid crystal lens array multiple in array distribution
Liquid crystal lens unit so that all radial directions of the liquid crystal layer of each liquid crystal lens unit in ring electrode under "on" position
It is upper that there is approximately uniform index distribution.And then cause using the 3 d display device of above-mentioned liquid crystal lens array, relative to
The existing 3 d display device based on column liquid crystal lens array, increases 3D viewing visual angles so that observer can be from more
Good 3D effect is watched at extensive visual angle, effectively improves the sight that 3 d display device carries out when 3D shows to observer
See the restriction at visual angle.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be to use needed for embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 shows the structural representation of existing unidirectional 3 d display device；
Fig. 2 shows a kind of structural representation of modes of emplacement of existing two-way 3 d display device；
Fig. 3 shows the structural representation of another kind of modes of emplacement of existing two-way 3 d display device；
Fig. 4 shows a kind of structural representation of liquid crystal lens array that this utility model first embodiment is provided；
Fig. 5 shows a kind of first electrode of liquid crystal lens array that this utility model first embodiment is provided in liquid crystal layer
Perspective view；
Fig. 6 shows a kind of the outer of multiple first electrodes of liquid crystal lens array that this utility model first embodiment is provided
The arrangement schematic diagram of ring electrode；
Fig. 7 shows a kind of outer shroud electricity of the first electrode of liquid crystal lens array that this utility model first embodiment is provided
Perspective view of the pole in liquid crystal layer；
Fig. 8 shows a kind of single liquid crystal lens unit of liquid crystal lens array that this utility model first embodiment is provided
A kind of example arrangement schematic diagram；
Fig. 9 shows a kind of multiple first electrodes first of liquid crystal lens array that this utility model first embodiment is provided
The arrangement schematic diagram of ring electrode；
Figure 10 shows a kind of multiple first electrodes the of liquid crystal lens array that this utility model first embodiment is provided
The arrangement schematic diagram of two ring electrodes；
Figure 11 show this utility model first embodiment provide a kind of liquid crystal lens array be arranged in array it is many
Individual first electrode is stacked schematic diagram；
Figure 12 shows a kind of liquid crystal lens array liquid crystal in the power-on state that this utility model first embodiment is provided
The ordered state schematic diagram of molecule；
Figure 13 shows a kind of structure of the first electrode of liquid crystal lens array that this utility model second embodiment is provided
Schematic diagram；
Figure 14 shows a kind of structural representation of 3 d display device that this utility model 3rd embodiment is provided；
Figure 15 shows a kind of a kind of pixel cell of 3 d display device that this utility model 3rd embodiment is provided
Structural representation；
Figure 16 shows a kind of another kind of pixel cell of 3 d display device that this utility model 3rd embodiment is provided
Structural representation；
Figure 17 is shown in a kind of specific embodiment of the 3 d display device that this utility model 3rd embodiment is provided
The position relationship schematic diagram of liquid crystal lens unit and respective pixel unit；
Figure 18 shows a kind of a kind of pixel cell of 3 d display device that this utility model 3rd embodiment is provided
A kind of arrangement schematic diagram.
In figure：The unidirectional 3 d display devices of 1-；The two-way 3 d display devices of 2-；3- 3 d display devices；11,21-2D show
Show module；12- lens arras；The lens arras of 22- first；The lens arras of 23- second；30- liquid crystal lens arrays；The bases of 31- first
Plate；310- first electrodes；310w- outer ring electrodes；The ring electrodes of 311- first；3111- connecting lines；3112- first axles；312-
Second ring electrode；The ring electrodes of 313- the 3rd；The insulating barriers of 314- first；The insulating barriers of 315- second；311a- ring electrodes；
312a- spiral electrodes；32- liquid crystal layers；321- liquid crystal molecules；33- second substrates；330- second electrodes；40- display floaters；
41- upper polaroids；42- upper substrates；43- infrabasal plates；44- down polaroids；45- pixel cells；50- back light units.
Specific embodiment
It is new below in conjunction with this practicality to make purpose, technical scheme and the advantage of this utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in this utility model embodiment
The embodiment stated is a part of embodiment of this utility model, rather than the embodiment of whole.Generally described in accompanying drawing herein and
The component of this utility model embodiment for illustrating can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in this utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of this utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and is explained in subsequent accompanying drawing.
In description of the present utility model, " " center ", " on ", D score, " interior ", " outward " etc. refer to it should be noted that term
The orientation or position relationship for showing is that, based on orientation shown in the drawings or position relationship, or the utility model product is used when using
The orientation often put or position relationship, are for only for ease of description this utility model and simplify description, rather than indicate or imply
The device or element of indication must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The restriction of utility model.Additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that indicating
Or hint relative importance.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets
Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in utility model.
Fig. 1 shows a kind of schematic diagram of common unidirectional 3 d display device.The unidirectional 3 d display device 1 includes two
Individual major part, i.e. 2D display modules 11 and the lens arra 12 being arranged on before 2D display modules 11.For example, the lens array
Row 12 can be liquid crystal lens array or birefringent lens array.The lenticule unit of the lens arra 12 generally shows with 2D
The vertical direction of module 11 into certain inclination angle to reduce the impact of moire fringes, i.e., in the two-dimensional Cartesian system shown in Fig. 1
In (X, Y), lenticule unit is axially with Y-direction into α angles.For this class 3 d display device, when the eyes position of observer
In X-direction and in certain observation positions, the left eye information shown by 2D display modules 11 and the light splitting of right eye information Jing lens are rolled over
Respectively correspondingly into the left eye L and right eye R of people after penetrating, so that observer enjoys stereo display.However, this unidirectional vertical
Body display device 1 has a defect, the i.e. eyes of observer only can just see steric information positioned at X-direction, when observer's
Eyes change after such as the unidirectional 3 d display device 1 is rotated by 90 ° with the relative position of unidirectional 3 d display device, observation
Person will can't see stereo display, this allow for 3 d display device the individual consumer's goods such as mobile phone or flat board field application very
It is restricted.
Viewing visual angle during stereo display is carried out for expansion 3 d display device, the application neck of 3 d display device is expanded
Domain, has research worker to propose two-way 3 d display device.Two-way 3 d display device can be at two by special design
Mutually orthogonal direction carries out stereo display.As shown in Fig. 2 when observer's eyes are located in the X-direction in Fig. 2, forming the
First lens arra 22 of one direction L1, the left eye information provided by 2D display modules 21 and the lens arras of right eye information Jing first
22 carry out light splitting, and observer can be allow to enjoy stereo display in X-direction, and more application is in video observing under this pattern
See, picture browsing or 3D game etc.；After two-way 3 d display device 2 is rotated by 90 °, as shown in figure 3, now this is two-way
3 d display device 2 can form the second lens arra 23 (dotted line) of second direction L2, the left side provided by 2D display modules 21
Eye information and the second lens arras of right eye information Jing 23 carry out light splitting and converge to left eye L and right eye R respectively, and observer still may be used
To enjoy stereo display, the application scenarios such as picture presentation are more suitable under this pattern.
However, either unidirectional 3 d display device 1, or two-way 3 d display device 2, as long as 3 d display device
After position determines, observer can only watch stereo display effect in ad-hoc location, limit observer and fill with stereo display
The relative position put, this can not watch stereo display effect simultaneously for multiple different observations in different azimuth.In view of
This, this utility model embodiment provides a kind of liquid crystal lens array, is applied to 3 d display device, is conducive to expanding three-dimensional aobvious
The viewing visual angle during stereo display that showing device is carried out.
First embodiment
As shown in figure 4, this utility model first embodiment provides a kind of liquid crystal lens array 30, the liquid crystal lens array
30 include the second substrates 33 that are oppositely arranged of first substrate 31 and first substrate 31 and be located in first substrate and second substrate it
Between liquid crystal layer 32.
First substrate 31 is provided with multiple first electrodes 310 in array distribution near the surface of liquid crystal layer 32.Second base
Plate 33 is provided with second electrode 330 near the surface of liquid crystal layer 32, and second electrode 330 is reference electrode for common electrode.For example,
When first electrode 310 connects the positive pole of driving power supply, second electrode 330 connects the negative pole of driving voltage, and works as first electrode
During the negative pole of 310 connection driving power supplies, second electrode 330 connects the positive pole of driving voltage.It is multiple first electric in array distribution
Liquid crystal lens array 30 is divided into multiple liquid crystal lens units in array distribution by pole 310, it is assumed that the liquid crystal lens array 30
Including 10 first electrodes 310 being arranged in array, then can be according to 10 first electrodes 310 by 30 strokes of the liquid crystal lens array
It is divided into 10 liquid crystal lens units.It is understood that each liquid crystal lens unit includes first substrate 31, first electrode
310th, liquid crystal layer 32, second electrode 330 and second substrate 33.
In the present embodiment, first substrate 31 can be glass or other flexible materials with second substrate 33.First electrode
310 and typically indium tin oxide (ITO) thin film of second electrode 330, it is of course also possible to use other electrically conducting transparents are thin
Film.
First electrode 310 includes at least two ring electrodes, and at least two ring electrodes are stacked, are located at respectively
On different layers.Insulating barrier is folded between two neighboring ring electrode with above-mentioned at least two ring electrode that is electrically insulated.So
It is designed with beneficial to the voltage for controlling to apply on each annular electrode.In this utility model preferably embodiment, each first
The ring electrode conducting for belonging to same layer of electrode 310, is so convenient to apply driving voltage to first electrode 310.Need
Bright, above-mentioned at least two annular electrode can be two annular electrodes, three annular electrodes or four annular electrodes etc..
Wherein, the insulating barrier positioned at same layer of different first electrodes 310 can be integrated, or it is detached,
Certainly, for simplified processing process, what the insulating barrier of different first electrodes 310 can preferably be integrated.In the present embodiment, insulation
Layer material can be using silicon nitride or resin.
Further, above-mentioned at least two ring electrode is nested with layer by layer in the projection of liquid crystal layer.Specifically, above-mentioned at least two
Individual ring electrode liquid crystal layer 32 projection non-overlapping copies, and in the two neighboring ring electrode of each first electrode 310
Individual ring electrode surrounds projection of another ring electrode in liquid crystal layer 32 in the projection of liquid crystal layer 32.It should be noted that this
Ring electrode described in embodiment is orthographic projection in the projection of liquid crystal layer 32, i.e., parallel projection line is perpendicular to liquid crystal layer 32.
Now, each ring electrode is respectively positioned on remaining internal diameter more than the ring in the projection of liquid crystal layer 32 in first electrode 310
All ring electrodes of shape electrode are in the roundlet of the projection of liquid crystal layer 32.For example, when at least two ring electrodes are 3 ring-types
During electrode, 3 ring electrodes are respectively E1, E2 and E3.Assume the internal diameter of the internal diameter less than E2 of E1, the internal diameter of E2 is interior less than E3
Footpath, and E1 is projected as annulus P1 in liquid crystal layer, E2 is projected as annulus P2 in liquid crystal layer, and E3 is projected as annulus in liquid crystal layer
P3.Ring electrode E1 is directed to, ring electrode of the internal diameter more than E1 includes E2 and E3, therefore, P1 is located in the roundlet of P2, while
It also is located in the roundlet of P3；Ring electrode E2 is directed to, ring electrode of the internal diameter more than E2 is E3, therefore, P2 is located at the little of P3
In circle；Ring electrode E3 is directed to, without ring electrode of the internal diameter more than E3, therefore, P3 is located at most outer shroud, as shown in Figure 5.Can
To be understood by, in first electrode 310, the minimum ring electrode of internal diameter can also be replaced using circular electrode.
Preferably, the central point of above-mentioned at least two ring electrode is respectively positioned on the same vertical line of liquid crystal layer 32, also
It is to say, when above-mentioned at least two ring electrode is circular ring electrode, above-mentioned at least two ring electrode is in liquid crystal layer 32
It is projected as donut.It is understood that in acceptable range of error, the central point of above-mentioned at least two ring electrode
Can also be slightly offset from the same vertical line of liquid crystal layer 32.Specific range of error can be obtained according to test of many times.
Further, from first substrate 31 to liquid crystal layer 32, it is distributed between first substrate 31 and liquid crystal layer 32 at least
The internal diameter of two ring electrodes is increasedd or decreased successively.Certainly, at least two ring electrodes are met mutual in the projection of liquid crystal layer 32
Under the conditions of nonoverlapping, the internal diameter of the ring electrode included to liquid crystal layer 32, first electrode 310 from first substrate 31 can not also
Relation in increasing or decreasing, for example, the internal diameter of ring electrode can also first increase with the increase apart from the distance of first substrate 31
Reduce after big, or, first reduce and increase afterwards.
The maximum ring electrode of internal diameter is outer ring electrode at least two ring electrodes.Preferably, each first electrode 310
Outer ring electrode and adjacent first electrode 310 the circumscribed connection of outer ring electrode, to realize the outer shroud electricity of different first electrodes 310
The conducting of pole.For example, Fig. 6 shows the arrangement schematic diagram of the outer ring electrode 310w of different first electrodes 310, as shown in fig. 6, filling out
Dash area filled with oblique line section represents outer ring electrode 310w, each outer ring electrode 310w with outside adjacent six outer ring electrode 310w
Cut and turn on, certainly, except the outer ring electrode 310w of the first electrode 310 at the edge of liquid crystal lens array 30.Adjacent three
Triangle white space between outer ring electrode 310w is the gap between adjacent three outer ring electrode 310w.Certainly, adjacent three
Gap can not also be stayed between individual outer ring electrode 310w, that is, above-mentioned triangle white space is also filled by electrode material.So
The arrangement that design advantageously allows first electrode 310 is even closer, so as to reduce between adjacent lcd lens unit as far as possible between
Gap, to reduce the crosstalk of formed 3 d display device, improves stereo display effect.Additionally, by adjacent first electrode 310
Outer ring electrode 310w be designed as circumscribed connection, without still further connecting up the conducting for realizing outer ring electrode 310w, be conducive to outer shroud
The applying of the driving voltage of electrode 310w.
It is understood that for ease of the orientation of liquid crystal molecule, it is facing each other in first substrate 31 and second substrate 33
Side is additionally provided with first, second alignment films (not shown).Aligning film material is generally polyimides, first orientation film with
The frictional direction of second orientation film be arranged in parallel, and concrete direction is according to the polarization direction of the emergent light of corresponding display floater
It is parallel.
When according to preset rules applied voltage between multiple first electrodes 310 and the second electrode 330, each liquid
The liquid crystal layer 32 of brilliant lens unit is respectively provided with the radial direction approximately uniform index distribution in all of above-mentioned outer ring electrode.
That is, ignore the thickness of liquid crystal layer 32, as shown in Figure 7, it is assumed that outer ring electrode 310w is projected as annulus liquid crystal layer 32
W, and the center of circle of annulus W is O, now, with O points as the center of circle, between any point and O points in the roundlet of annulus W
Distance for radius circumference on arbitrfary point refractive index it is equal.Now, any one point A in annulus W roundlets, equal energy
With O as the center of circle, line segment OA is to find the refractive index multiple points equal with A points on the circumference of radius.Therefore, by this liquid crystal lens
When array 30 is applied to 3 d display device, can effectively reduce carries out the stereo display dress that 3D shows in different visual angles viewing
The heterochromia seen when putting so that the observer positioned at multiple different visual angles observes the consistent solid of effect in the same time
Show, that is, effectively increase the 3D viewing visual angles of 3 d display device, lift 3D display effects.It is understood that above-mentioned
Refractive index it is equal should be understood to the equal of broad sense, i.e., with O points as the center of circle, with any one in the roundlet in annulus W
Point can also be in preset range for the difference of the refractive index of any two points on the circumference of radius with the distance between O points.Should
Preset range can be obtained according to test of many times.
Specifically, according to the reality of preset rules applied voltage between multiple first electrodes 310 and the second electrode 330
The mode of applying is preferably：Apply different voltages on each ring electrode in same first electrode 310, with ring electrode
The increase in footpath, the magnitude of voltage increase applied on ring electrode or reduction.Belong to the ring-type on same layer of same electrode
Apply identical voltage on electrode.
Fig. 8 shows the structural representation of single liquid crystal lens unit in a kind of specific embodiment of the present utility model,
As shown in figure 8, first electrode 310 includes the first ring electrode 311, the second ring electrode 312 and the 3rd ring electrode 313, and
First ring electrode 311, the second ring electrode 312 and the 3rd ring electrode 313 are stacked.First ring electrode 311, second
The center of circle of the ring electrode 313 of ring electrode 312 and the 3rd is located on the same vertical line V of liquid crystal layer 32.First ring electrode 311
And second be folded with the first insulating barrier 314 between ring electrode 312, between the second ring electrode 312 and the 3rd ring electrode 313
It is folded with the second insulating barrier 315.Wherein, the first ring electrode 311 is formed at the surface of the close liquid crystal layer 32 of first substrate 31,
Second ring electrode 312 is formed at the surface of the close liquid crystal layer 32 of the first insulating barrier 314, and the 3rd ring electrode 313 is formed at
The surface of the close liquid crystal layer 32 of the second insulating barrier 315.In the present embodiment, the first insulating barrier 314 of different first electrodes 310 can
To be one, or detached, the second insulating barrier 315 of different first electrodes 310 can also be one, Ke Yishi
It is detached.
In the present embodiment, the internal diameter of the first ring electrode 311 is less than the internal diameter of the second ring electrode 312, the second ring-type electricity
Internal diameter of the internal diameter of pole 312 less than the 3rd ring electrode 313.Now, the 3rd ring electrode 313 is outer ring electrode 310w.The liquid
In brilliant lens arra 30, the arrangement mode of the first ring electrode 311 of all first electrodes 310 can be：As shown in figure 9, the
One ring electrode 311 is arranged according to the form of dot matrix, and is interconnected to form by connecting line 3111 in one direction, connection
The setting of line 3111 causes the first ring electrode 311 in this direction to turn on.Wherein, the setting direction S1S1 ' of connecting line 3111 with
First axle 3112 is at an angle β, it is preferred to use make with the first ring electrode identical material.Specifically, the size at β angles with include
The shape of the pixel cell of the display floater of the 3 d display device of this liquid crystal lens array 30 is relevant, and generally ± 50～90
Degree.Certainly, each first ring electrode 311 can also wait direction phase in other any directions such as S2S2 ', V1V1 ' or h1h1 '
Even or in the form of multiple directions are connected simultaneously realize conducting.In the same manner, as shown in Figure 10, the of all first electrodes 310
The arrangement mode of two ring electrodes 312 can be similar with the arrangement mode of the first ring electrode 311, it is also possible to according to the shape of dot matrix
Formula is arranged, and is interconnected to form by connecting line in one or more directions, to realize liquid crystal lens array 30 in the
The conducting of two ring electrodes 312.Dotted portion in Figure 10 represents the first ring electrode 311.Now, what is be arranged in array is multiple
The schematic diagram that is stacked of first electrode 310 can be as shown in figure 11, and dotted line represents the arrangement of the first ring electrode 311 in Figure 11
With the arrangement of the second ring electrode 312, solid line represents the arrangement of the 3rd ring electrode 313.
In order that scheme of the present utility model is clearer, and based on above-mentioned specific embodiment, below will be to including upper
The use principle for stating the 3 d display device of liquid crystal lens array 30 is illustrated.
Under 2D display patterns, liquid crystal lens array 30 is in obstructed electricity condition, and the liquid crystal molecule of liquid crystal layer 32 remains initial
It is oriented along horizontal direction unanimously to arrange, the optional position of whole liquid crystal lens array 30 has identical optical path difference, by showing
The incident light of panel is entered and not reflected after liquid crystal lens array 30, and the normal 2D for not affecting 3 d display device shows.
Under 3D display patterns, when liquid crystal lens array 30 is in "on" position, with second electrode 330 as reference, first
Apply first voltage V1, second voltage V2 applied on the second ring electrode 312, in the 3rd ring-type electricity on ring electrode 311
Apply tertiary voltage V3 on pole 313.Wherein, V3>V2>V1, now, the corresponding first electrode 310 of each liquid crystal lens unit
The voltage applied on each ring electrode successively decreases from edge to center and certain Gradient distribution is presented.Due in first electrode 310
The voltage of applying is presented above-mentioned Gradient distribution, i.e. the first ring electrode 311, the second ring electrode 312, the 3rd ring electrode 313
Increase successively with the voltage difference between second electrode 330 respectively, make the liquid crystal molecule director for belonging to the liquid crystal lens unit
Present corresponding change.For example, as shown in figure 12, near the 3rd maximum ring electrode 313 of voltage difference, positivity liquid crystal point
Son 321 changes the initial orientation of its molecule because of larger voltage difference, makes molecular long axis along the thickness of liquid crystal lens array 30
Direction arranges, i.e. the major axis of liquid crystal molecule 321 is parallel with direction of an electric field；Near the second smaller ring electrode 312 of voltage difference, liquid
The major axis of brilliant molecule 321 will slightly increase with the angle of electric field；And the first ring electrode 311 has minimum voltage difference, change liquid
The ability of the initial orientation of brilliant molecule 321 is most weak, it is believed that liquid crystal molecule 321 substantially maintains its initial orientation.
Because liquid crystal molecule 321 arrange situation difference, cause be in the refractive index of incident illumination in each liquid crystal lens unit
Existing rule change, i.e., corresponding liquid crystal has minimum refractive index no at each liquid crystal lens cell edges, and each liquid crystal is saturating
Refractive index n that the corresponding liquid crystal in mirror unit center has maximum refractive index ne, the liquid crystal at other positions is presented gradual change
Trend (no<n<), and the liquid crystal layer 32 of each liquid crystal lens unit has in the radial direction in the 3rd all of ring electrode 313 ne
There is approximately uniform index distribution.
In sum, the first electrode that the liquid crystal lens array 30 that this utility model embodiment is provided passes through particular design
310 so that the liquid crystal layer 32 of each liquid crystal lens unit has in the radial direction along all of outer ring electrode of first electrode 310
Approximately uniform index distribution.And then cause using the 3 d display device of above-mentioned liquid crystal lens array 30, relative to existing
The 3 d display device based on column liquid crystal lens array, increase 3D viewing visual angles so that observer can be from more extensive
Visual angle watch good 3D effect, effectively improving 3 d display device carries out regarding the viewing of observer when 3D shows
The restriction at angle.
Second embodiment
In addition to the structure of first electrode 310, remaining is tied the liquid crystal lens array 30 that this utility model embodiment is provided
Structure and technique effect are identical with above-mentioned first embodiment, are brief description, and the present embodiment part does not refer to part, refers to first
Corresponding contents in embodiment.
As shown in figure 13, in the present embodiment, first electrode 310 includes being arranged on table of the first substrate 31 near liquid crystal layer 32
The ring electrode 311a in the face and spiral electrode 312a being arranged on inside the roundlet of ring electrode 311a, and spiral electrode
312a and ring electrode 311a is turned on.The present embodiment is using the ring electrode 311a for being arranged on same layer and is arranged on ring-type electricity
Spiral electrode 312a inside the roundlet of pole 311a instead of at least two rings being stacked in above-mentioned first embodiment
Shape electrode, advantageously reduces the quantity of electrode and driving voltage, is simplified device.
Now, according to the enforcement of preset rules applied voltage between multiple first electrodes 310 and the second electrode 330
Mode is：With second electrode 330 as reference electrode, voltage of the amplitude for V is applied on ring electrode 311a.Now, ring
Be that the edge of liquid crystal lens unit has larger pressure reduction on shape electrode 311a, and the voltage on spiral electrode 312a with away from
Length change from the coiling of ring electrode 311a will decay.For example, the voltage magnitude of B2 points is less than B1 points in Figure 13
Voltage magnitude.When on the whole, from ring electrode 311a to spiral electrode 312a central transitions, first electrode 310 and second
Voltage difference between electrode 330 is presented the trend successively decreased, and again results in gradually changing for liquid crystal molecular orientation and refractive index, can
So that the liquid crystal layer 32 of each liquid crystal lens unit has in the radial direction approximately uniform folding in all of ring electrode 311a
Penetrate rate distribution.
Further, the ring electrode of the ring electrode 311a of each first electrode 310 and adjacent first electrode 310
The circumscribed connections of 311a, to realize the conducting of different first electrodes 310.For example, Figure 13 shows the arrangement of different first electrodes 310
Schematic diagram, as shown in figure 13, each ring electrode 311a is circumscribed with adjacent six ring electrode 311a and turns on, and certainly, is located at
Except the first electrode 310 at the edge of liquid crystal lens array 30.So design advantageously allows the arrangement of first electrode 310 and more steps up
It is close, so as to reduce the gap between adjacent lcd lens unit as far as possible, to reduce the crosstalk of formed 3 d display device, carry
High stereo display effect.Additionally, the ring electrode 311a of adjacent first electrode 310 is designed as into circumscribed connection, without another again
It is outer to connect up the conducting for realizing ring electrode 311a, be conducive to the applying of the driving voltage of ring electrode 311a.
3rd embodiment
This utility model embodiment provides a kind of 3 d display device, and as shown in figure 14, the 3 d display device 3 includes
Display floater 40 and liquid crystal lens array 30.Liquid crystal lens array 30 is arranged on display floater 40, for example, can pass through liquid
Optical cement is fitted display floater 40 with liquid crystal lens array 30.
Wherein, liquid crystal lens array 30 can adopt the liquid crystal lens that above-mentioned first embodiment or second embodiment are provided
Array 30, its concrete structure is referred to above-mentioned first embodiment or second embodiment, and here is omitted.
As shown in figure 14, display floater 40 mainly includes upper substrate 42, infrabasal plate 43, is arranged at upper substrate 42 away from lower base
The upper polaroid 41 on the surface of plate 43 and it is arranged on down polaroid 44 of the infrabasal plate 43 away from the surface of upper substrate 42.Set partially
The printing opacity direction of principal axis of mating plate 44 be aa ', aa ' be located at x/y plane in and it is parallel with y directions, the light transmission shaft bb ' of upper polaroid 41 with
Aa ' is mutually perpendicular to (bb ' ⊥ aa '), i.e. bb ' is located in x/y plane and parallel with x directions.Now, to the 3 d display device 3
Speech, its focal length f is by the thickness d 1 of second substrate 33, liquid optical cement thickness d 2, the thickness d 3 of upper polaroid 41 and upper substrate 42
Thickness d 4 together decide on, i.e. f=d1+d2+d3+d4.
It is understood that as shown in figure 14, when display floater 40 is non-luminescent device such as TFT_LCD, the present embodiment
The 3 d display device 3 of offer also includes back light unit 50.Back light unit 50 can be using LED or CCFL etc. as luminous single
Unit.Certainly, when display floater 40 is selfluminous element, it is convenient to omit back light unit 50.By taking TFT_LCD as an example, in three-dimensional flute
In karr coordinate system (x, y, z), three major part liquid crystal lens arrays 30 of the 3 d display device 3, display floater 40 and
Back light unit 50 is stepped construction in z directions, and observer's eyes are located at the close liquid crystal lens array 30 of the 3 d display device 3
Side.
Wherein, the upper substrate 42 and infrabasal plate 43 of display floater 40 collectively forms the multiple pixel cells being arranged in array.
Under normal circumstances, pixel cell 45 is included according to breadth length ratio 1:The 3 square sub-pixels for arranging.The preferred implementation of the present embodiment
In, in order to coordinate liquid crystal lens array 30 to realize omnibearing stereo display, reduce 3 d display device 3 visible in whole space
Aberration and reduce crosstalk, to obtain more preferable 3D display effects, the shape of multiple pixel cells 45 that display floater 40 includes
Circle is, and each liquid crystal lens unit of liquid crystal lens array 30 covers one or more pixel cells.
Wherein, each pixel cell 45 includes red (R) sub-pixel, green (G) sub-pixel and blue (B) sub-pixel.It is red
The concrete arrangement mode of color (R) sub-pixel, green (G) sub-pixel and blue (B) sub-pixel can be as shown in Figure 15 or Figure 16.Figure
In 15, each sub-pixel is shaped as sector.In Figure 16, the sub-pixel that pixel cell 45 includes it is generally circular in shape, separately
The shape of outer two sub-pixels is annular.Certainly, in addition to two kinds of concrete arrangement modes shown in Figure 15 or Figure 16, also may be used
With using other arrangement modes.
When each liquid crystal lens unit of liquid crystal lens array 30 covers a pixel cell 45, each pixel cell 45
Adjacent to each other and spaced set, and multiple pixel cells 45 and multiple one-to-one corresponding of the liquid crystal lens units in array distribution.
It is understood that according to 3D displaying principles, after the position of 3 d display device 3 determines, liquid crystal lens array 30 be located at towards
The side of user, display floater 40 is located remotely from the side of user, that is to say, that liquid crystal lens array 30 is located at user and shows
Between panel 40.As shown in figure 17, Ui represents single liquid crystal lens unit, it is assumed that the radius of its corresponding pixel cell Pi is r,
The width of liquid crystal lens unit Ui is 2*d, and the distance of pupil T and the liquid crystal lens unit Ui bottom surface of user is l, liquid crystal lens list
The focal length of first Ui is f.Now, l/ (l+f)=d/r.Although the focal length f of liquid crystal lens unit Ui is less, the presence of focal length f
Also so that when liquid crystal lens unit Ui just covers a pixel cell Pi, the width of pixel cell Pi should be slightly bigger than liquid crystal
The width of lens unit Ui.By taking 10.1 cun of flat boards as an example, the distance of the pupil T and liquid crystal lens unit Ui bottom surface of user is that l is big
About 450mm, as the focal length f=0.5mm of liquid crystal lens unit Ui, when the radius r of pixel cell Pi is 40 μm, liquid crystal lens unit
The width of Ui is 2*d=79.9 μm.Wherein, for the liquid crystal lens array that above-mentioned first embodiment is provided, liquid crystal lens unit
Width can be outer ring electrode axis of great circle.For the liquid crystal lens array that above-mentioned second embodiment is provided, liquid crystal lens
The width of unit can be the axis of great circle of ring electrode.
Used as a kind of embodiment, each liquid crystal lens unit can just cover its corresponding pixel cell.Certainly,
In actual applications, each liquid crystal lens unit can also be slightly offset from its corresponding pixel cell.
When each liquid crystal lens unit of liquid crystal lens array 30 covers multiple pixel cells 45, need according to each liquid
Brilliant lens unit covers the quantity of pixel cell 45, correspondingly designs the arrangement mode of the pixel cell 45 of display floater 40.It is excellent
Choosing, multiple pixel cells 45 are disposed adjacent to each other, and the first electrode 310 of each liquid crystal lens unit covers above-mentioned phase each other
Adjacent multiple pixel cells 45.So that each liquid crystal lens unit covers three pixel cells 45 as an example, now, as shown in figure 18,
Adjacent to each other per three pixel cells 45, each liquid crystal lens unit covers these three pixel cells 45, the chain-dotted line in Figure 18
Circle represents orthographic projection of the liquid crystal lens unit on display floater 40.As shown in Figure 18, the now pixel of display floater 40
Unit 45 is designed for unequal-interval, but because all sub-pixels are covered by corresponding liquid crystal lens unit, can be substantially improved
The crosstalk of the 3 d display device 3.
Relative to the existing 3 d display device based on column liquid crystal lens array, what this utility model embodiment was provided
3 d display device 3 employs the liquid crystal lens array 30 of the structure of first electrode 310 with particular design, increases 3D viewings
Visual angle so that observer can watch good 3D effect from wider visual angle, effectively improve 3 d display device 3
The restriction to the viewing visual angle of observer when 3D shows is carried out, the multiple observers positioned at different visual angles is advantageously implemented same
Time watches the consistent stereo display of effect.
Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for this
For the technical staff in field, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of liquid crystal lens array, it is characterised in that including the second base that first substrate and the first substrate are oppositely arranged
Plate and the liquid crystal layer being located between the first substrate and the second substrate, the first substrate is near the liquid crystal layer
Surface is provided with multiple first electrodes in array distribution, and the second substrate is provided with second near the surface of the liquid crystal layer
The liquid crystal lens array is divided into multiple liquid crystal in array distribution by electrode, the plurality of first electrode in array distribution
Lens unit, the first electrode includes at least two ring electrodes, and at least two ring electrode is located at respectively different layers
On, insulating barrier is folded between two neighboring ring electrode with least two ring electrode that is electrically insulated, described at least two
Individual ring electrode is nested with layer by layer in the projection of the liquid crystal layer.
2. liquid crystal lens array according to claim 1, it is characterised in that the central point of at least two ring electrode
It is respectively positioned on the same vertical line of the liquid crystal layer.
3. liquid crystal lens array according to claim 1 and 2, it is characterised in that interior at least two ring electrode
The maximum ring electrode in footpath is outer ring electrode, and the outer ring electrode of each first electrode is electric with the outer shroud of adjacent first electrode
It is extremely circumscribed to connect to realize the conducting of the outer ring electrode of different first electrodes.
4. liquid crystal lens array according to claim 3, it is characterised in that at least two ring electrode includes first
Ring electrode, the second ring electrode and the 3rd ring electrode, first ring electrode, the second ring electrode and the 3rd ring-type electricity
Pole is located on different layers respectively, and the first insulating barrier, institute are folded between first ring electrode and second ring electrode
State and be folded with the second insulating barrier between the second ring electrode and the 3rd ring electrode, wherein, the first ring electrode shape
The surface of the close described liquid crystal layer of first substrate described in Cheng Yu, second ring electrode is formed at first insulating barrier
Near the surface of the liquid crystal layer, the 3rd ring electrode is formed at the table of the close described liquid crystal layer of second insulating barrier
Face.
5. a kind of liquid crystal lens array, it is characterised in that including the second base that first substrate and the first substrate are oppositely arranged
Plate and the liquid crystal layer being located between the first substrate and the second substrate, the first substrate is near the liquid crystal layer
Surface is provided with multiple first electrodes in array distribution, and the second substrate is provided with second near the surface of the liquid crystal layer
The liquid crystal lens array is divided into multiple liquid crystal in array distribution by electrode, the plurality of first electrode in array distribution
Lens unit；The first electrode includes ring electrode and the helical form electricity being arranged on inside the roundlet of the ring electrode
Pole, the spiral electrode is turned on the ring electrode.
6. liquid crystal lens array according to claim 5, it is characterised in that the ring-type electricity of each first electrode
Pole is circumscribed from the ring electrode of adjacent first electrode to be connected to realize the conducting of the different first electrodes.
7. a kind of 3 d display device, it is characterised in that the liquid including display floater and as any one of claim 1-4
Brilliant lens arra, the liquid crystal lens array is arranged on said display panel.
8. 3 d display device according to claim 7, it is characterised in that the display floater includes multiple pixel lists
Unit, the shape of the plurality of pixel cell is circle, and each liquid crystal lens unit of described liquid crystal lens array covers one
Individual or multiple pixel cells.
9. a kind of 3 d display device, it is characterised in that the liquid including display floater and as any one of claim 5-6
Brilliant lens arra, the liquid crystal lens array is arranged on said display panel.
10. 3 d display device according to claim 9, it is characterised in that the display floater includes multiple pixel lists
Unit, the shape of the plurality of pixel cell is circle, and each liquid crystal lens unit of described liquid crystal lens array covers one
Individual or multiple pixel cells.
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| CN201621154325.6U CN206162019U (en) | 2016-10-31 | 2016-10-31 | Liquid crystal lens array and three -dimensional display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942528A (en) * | 2018-01-02 | 2018-04-20 | 京东方科技集团股份有限公司 | A kind of bore hole 3D display equipment and preparation method thereof |
| ES2711456A1 (en) * | 2018-09-14 | 2019-05-03 | Univ Madrid Politecnica | CONFIGURABLE OPTICAL DEVICE (Machine-translation by Google Translate, not legally binding) |
-
2016
- 2016-10-31 CN CN201621154325.6U patent/CN206162019U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942528A (en) * | 2018-01-02 | 2018-04-20 | 京东方科技集团股份有限公司 | A kind of bore hole 3D display equipment and preparation method thereof |
| ES2711456A1 (en) * | 2018-09-14 | 2019-05-03 | Univ Madrid Politecnica | CONFIGURABLE OPTICAL DEVICE (Machine-translation by Google Translate, not legally binding) |
| WO2020053463A1 (en) * | 2018-09-14 | 2020-03-19 | Universidad Politecnica De Madrid | Configurable optical device |
| US11314142B2 (en) | 2018-09-14 | 2022-04-26 | Universidad Politecnica De Madrid | Configurable optical device |
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