CN105785575B - 3 d display device - Google Patents
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- CN105785575B CN105785575B CN201410817168.1A CN201410817168A CN105785575B CN 105785575 B CN105785575 B CN 105785575B CN 201410817168 A CN201410817168 A CN 201410817168A CN 105785575 B CN105785575 B CN 105785575B
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Abstract
The present invention is applied to stereo display technique field, provide 3 d display device, the 3 d display device includes liquid crystal lens and display panel, display panel includes the M × N number of display unit being arranged in array, liquid crystal lens include multiple first electrodes, each first electrode is intervally installed, the bearing of trend of first electrode is different from the arragement direction of display unit, when liquid crystal lens are used for 3D display, liquid crystal lens unit is formed between first substrate and second substrate, each liquid crystal lens unit is corresponding with the n first electrode continuously arranged, n >=4, the first driving voltage is with the center line symmetrical setting of liquid crystal lens unit corresponding to each first electrode, and gradually successively decreased by border to the center of liquid crystal lens unit.Improve the degree of deflection of liquid crystal molecule near first electrode, more smooth state is presented in the performance of phase-delay quantity, the difference of adjacent two liquid crystal lens unit intersection is reduced, weakens the larger crosstalk brought herein, lifts the effect of stereoscopic display and the comfort level of viewing.
Description
Technical field
The invention belongs to stereo display technique field, more particularly to 3 d display device.
Background technology
In recent years, three-dimensional stereo display technique was quickly grown, and turned into the focus of people's research.Stereo display technique exists at present
There is important application in the fields such as medical treatment, advertisement, military affairs, exhibition, game.The stereo display technique of early stage mainly passes through wearing stereoscopic
Glasses watch stereoscopic picture plane, and current main product is the naked-eye stereoscopic display device based on binocular parallax, and bore hole is three-dimensional aobvious
Showing device cardinal principle is that grating is set before display panel, and at least two width anaglyphs that grating shows display panel are distinguished
The images of left and right eyes of beholder is supplied to, beholder is seen 3D rendering.
Fig. 1 is the 3 d display device structural representation that prior art provides, and 3 d display device includes the ＇ of display panel 1
The ＇ of display panel 1 light emission side is arranged at the ＇ of liquid crystal lens 2, the ＇ of liquid crystal lens 2, the light that the ＇ of display panel 1 is sent passes through liquid crystal
The ＇ of lens 2 respectively enters the left eye and right eye of beholder with directional light.The ＇ of liquid crystal lens 2 includes the ＇ of first substrate 21 being oppositely arranged
With the ＇ of second substrate 22, and the liquid crystal layer being located between the ＇ of first substrate 21 and the ＇ of second substrate 22, set on the ＇ of first substrate 21
There are multiple ＇ of spaced first electrode 23, the ＇ of second substrate 22 to be provided with the ＇ of second electrode 24.By to multiple first electrodes
The 23 ＇ and ＇ of second electrode 24 apply each required voltage, and electric-field intensity is produced not between the ＇ of first substrate 21 and the ＇ of second substrate 22
Deng electric field, the ＇ of liquid crystal molecule 25 in electric field driven liquid crystal layer deflects.Due to electric-field intensity, therefore, electric field driven
The degree that the ＇ of liquid crystal molecule 25 deflects is different, therefore, controls the voltage's distribiuting on multiple ＇ of first electrode 23, the ＇ of liquid crystal lens 2
Refractive index will change accordingly, so as to be controlled to the ＇ of display panel 1 light extraction, realize stereoscopic display.
When 3 d display device is used for 3D display, formed with array arrangement between the ＇ of first substrate 21 and the ＇ of second substrate 22
Liquid crystal lens unit, each liquid crystal lens unit have identical structure.Fig. 2 only shows the first adjacent liquid crystal lens unit
L1 ＇ and the second liquid crystal lens unit L2 ＇, the first liquid crystal lens unit L1 ＇ are corresponding with two ＇ of first electrode 23, and the second liquid crystal is saturating
Mirror unit L2 ＇ are corresponding with two ＇ of first electrode 23.It can be seen from the ＇ image-forming principles of liquid crystal lens 2, the ＇ of first electrode 23 is applied and driven
Dynamic voltage, the second driving voltage is applied to the ＇ of second electrode 24, therefore, the maximum electricity of electric-field intensity is formed at the ＇ of first electrode 23
, the ＇ of liquid crystal molecule 25 at the ＇ of first electrode 23 is in vertical distribution under the driving of electric field, and with away from first
The ＇ of electrode 23, electric field also become more and more weaker, i.e., the ＇ of liquid crystal molecule 25 can be increasingly prone to horizontally arranged.
The ＇ of liquid crystal lens 2 shown in Fig. 2, the wherein ＇ of second electrode 24 are face electrode, and Fig. 3 is the first liquid crystal lens unit L1 ＇
, can be with from Fig. 3 with the comparison figure of the distribution of the second liquid crystal lens unit L2 ＇ optical path difference and the distribution of preferable parabolic type lens optical path difference
Find out, adjacent first liquid crystal lens unit L1 ＇ and the second liquid crystal lens unit L2 ＇ edges share a ＇ of first electrode 23.When
When 3 d display device is used for 3D display, the electric field of the first liquid crystal lens unit L1 ＇ and the second liquid crystal lens unit L2 ＇ junctions
Strength Changes are more violent, and larger fluctuation, the light path difference of the ＇ of liquid crystal lens 2 herein occurs in the optical path difference that result in herein
Cloth deviates considerably from preferable parabolic type lens optical path difference distribution, so as to have impact on the imaging characteristic of the ＇ of liquid crystal lens 2 at this.Therefore, liquid
The light path of brilliant lens unit boundary and the parabolic type lens of standard, which are compared, has larger deviation.When the ＇ of liquid crystal lens 2 is applied to
During 3D display technology, these deviations can increase the crosstalk of 3 d display device, influence stereos copic viewing comfort level.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of 3 d display device, it is intended to solves above-mentioned due to two neighboring liquid
Brilliant lens unit intersection light path fluctuation it is larger caused by cross-interference issue.
The embodiment of the present invention is achieved in that 3 d display device, including liquid crystal lens and display panel, the liquid crystal
Lens are arranged at the light emission side of the display panel, and the display panel includes the M × N number of display unit being arranged in array, institute
M display unit is stated to arrange in the first direction, N number of display unit is arranged in a second direction, the first direction perpendicular to
The second direction, the liquid crystal lens include the first substrate and second substrate being oppositely arranged, and the second substrate is provided with
Second electrode, the first substrate are provided with multiple first electrodes, and each first electrode is intervally installed, and along third party
To extension, the third direction is different from the first direction, the second direction, when the liquid crystal lens are used for 3D display
When, identical formed with multiple structures between the first substrate and the second substrate and liquid crystal lens list that is arranged in array
Member, each liquid crystal lens unit are corresponding with the n first electrodes continuously arranged, n >=4, and each first electrode corresponds to
The first driving voltage with the center line symmetrical setting of the liquid crystal lens unit, and by the liquid crystal lens unit border extremely
Center is gradually successively decreased, and the display unit includes multiple display subelements, and the display subelement is the son of the display panel
Pixel, the width of the first electrode no more than the display subelement width, and the two neighboring first electrode away from
From the width no more than the display subelement, wherein, at least one first electrode covers a display subelement.
Preferably, the distance between two neighboring described first electrode is l, and the spacing of the liquid crystal lens unit is p, then
L≤kp, wherein 0 ＜ k≤0.1.
The width for the first electrode being preferably located at the liquid crystal lens elementary boundary is b, and 10 μm≤b≤
30μm。
Further, the second electrode is strip electrode, and a liquid crystal lens unit is corresponding one described second
Electrode, the width of the second electrode are less than the spacing of the liquid crystal lens unit, and the center line of the liquid crystal lens unit
With the center line of the corresponding second electrode on the same line.
Or further, the second electrode is face electrode.
Further, in addition to voltage control device, the voltage control device control put on each first electrode
On driving voltage with the center line symmetrical setting of the liquid crystal lens unit, and the magnitude of voltage of each first driving voltage by
Gradually successively decrease at border to the center of the liquid crystal lens unit.
It is preferably located at first driving voltage corresponding to the first electrode at the liquid crystal lens elementary boundary
For u0, the threshold voltage of the liquid crystal lens is vth, u0≥vth。
Preferably, the first direction is horizontal direction, and the third direction is with the first direction formed with angle, institute
It is α to state angle, and 60 °≤α≤80 °.
Preferably, the cross sectional shape of the first electrode is rectangle, arch or zigzag.
3 d display device provided by the invention, liquid crystal lens are in 3D display, shape between first substrate and second substrate
Into multiple structure identical liquid crystal lens units, each liquid crystal lens unit corresponds to multiple first electrodes, and each first electrode is corresponding
First driving voltage is gradually passed with the center line symmetrical setting of liquid crystal lens unit by border to the center of liquid crystal lens unit
Subtract, weaken the electric-field intensity at liquid crystal lens cell edges, improve the degree of deflection of liquid crystal molecule near first electrode, in phase
More smooth state is presented in the performance of retardation, hence it is evident that the crosstalk phenomenon of adjacent two liquid crystal lens unit intersection is reduced,
Lift the effect of stereoscopic display and the comfort level of viewing.
Brief description of the drawings
Fig. 1 is the structural representation for the 3 d display device that prior art provides；
Fig. 2 is the structural representation for the liquid crystal lens that prior art provides；
Fig. 3 is compared with the optical path difference distribution for the liquid crystal lens that prior art provides is distributed with preferable parabolic type lens optical path difference
Figure；
Fig. 4 is the structural representation of 3 d display device provided in an embodiment of the present invention；
Fig. 5 is the structural representation of display panel provided in an embodiment of the present invention；
Fig. 6 is the structural representation of display unit provided in an embodiment of the present invention；
Fig. 7 is that the display panel that the embodiment of the present invention one provides is used cooperatively schematic diagram with first electrode；
Fig. 8 is that the display panel that the embodiment of the present invention one provides is used cooperatively schematic diagram with first electrode；
Fig. 9 be the embodiment of the present invention one provide multiple electrode structure liquid crystal lens unit apply voltage when light path curve with
The contrast schematic diagram of the light path curve of nomianl para-curve physical lens；
Figure 10 is the light path curve and nomianl para-curve physical lens when bipolar electrode structure liquid crystal lens unit applies voltage
Light path curve contrast schematic diagram；
Figure 11 is that the display panel that the embodiment of the present invention two provides is used cooperatively schematic diagram with first electrode；
Figure 12 is that the display panel that the embodiment of the present invention three provides is used cooperatively schematic diagram with first electrode.
Embodiment
In order that technical problems, technical solutions and advantageous effects to be solved by the present invention are more clearly understood, below in conjunction with
Drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
As shown in figs. 4 and 5,3 d display device 10 provided by the invention, including display panel 1 and liquid crystal lens 2.Liquid
Brilliant lens 2 are arranged at the light emission side of display panel 1, and certainly, liquid crystal lens 2 can also be arranged on after display panel 1.Display surface
Plate 1 includes the M × N number of display unit 11 being arranged in array, and M display unit 11 is arranged in the first direction, N number of display unit 11
Arrange in a second direction, first direction is perpendicular to second direction.Liquid crystal lens 2 include the first substrate 21 and second being oppositely arranged
Substrate 22, second substrate 22 are provided with second electrode 25 towards the side of first substrate 21.First substrate 21 and second substrate 22 it
Between be provided with liquid crystal molecule 23, first substrate 21 is provided with multiple first electrodes 24, is spaced between two neighboring first electrode 24
There is certain distance, the bearing of trend of first electrode 24 is third direction, and third direction is different from first direction, second direction.Can
It is in plane coordinate system, third direction both not parallel first direction, to be also not parallel to second direction, i.e., the first electricity to understand
The bearing of trend of pole 24 is different from the arragement direction of display unit 11, is inclined to set.When liquid crystal lens 2 are used for 3D display,
First driving voltage is applied to first electrode 24, the second driving voltage, the first driving voltage and second are applied to second electrode 25
Electrical potential difference between driving voltage forms the electric field that electric-field intensity does not wait, electric field between first substrate 21 and second substrate 22
Driving liquid crystal molecule 23 deflects, and forms that structure is identical and the liquid crystal lens unit L1 (L2) of array arrangement, liquid crystal lens list
First L1 (L2) has the refractive index of gradual change, and therefore, the light that liquid crystal lens unit L1 (L2) can be sent to display panel 1 is carried out
Adjustment, stereo-picture is presented.
Each liquid crystal lens unit L1 (L2) is corresponding with the n first electrode 24 continuously arranged, and n is natural number, and n >=4,
To each first electrode 24 apply the first driving voltage with liquid crystal lens unit L1 (L2) center line symmetrical setting, also,
First driving voltage corresponding to first electrode 24 positioned at liquid crystal lens unit L1 (L2) boundary is maximum, by liquid crystal lens unit
Gradually successively decrease at L1 (L2) border to liquid crystal lens unit L1 (L2) center, it is ensured that form the liquid crystal lens list of graded index
First L1 (L2).Liquid crystal lens unit L1 (L2) provided by the invention is corresponding with multiple first electrodes 24, realizes to liquid crystal lens list
The electric-field intensity everywhere of first L1 (L2) is modified so that liquid crystal molecule 23 everywhere deflects proper angle, it is ensured that liquid crystal lens 2
Light path curve and standard physical lens light path Curve Matching, more smooth state is presented in the performance of phase-delay quantity,
The crosstalk phenomenon of adjacent two liquid crystal lens unit L1 (L2) intersection is significantly reduced, lifts effect and the viewing of stereoscopic display
Comfort level.Because display unit 11 is arranged in array, first electrode 24 is inclined to set, and eliminates the arrangement week because of first electrode 24
Periodically interfere caused by phase and the arrangement cycle of display unit 11, that is, eliminate moire fringes Producing reason.
As shown in figure 4, each first strip electrode 24 corresponding to each liquid crystal lens unit L1 (L2) applies symmetrical first
Driving voltage, specifically, in liquid crystal lens unit L1, to each first electrode 25 such as S11, S12, S13, S14, S15, S16
Apply symmetrical voltage, specifically V (S11)=V (S16)>V (S12)=V (S15)>V (S13)=V (S14), similarly, in liquid
In brilliant lens unit L2, to each strip electrode such as S16, S17, S18, S19, S20, S21 applies symmetrical voltage, specifically V
(S16)=V (S21)>V (S17)=V (S20)>V (S18)=V (S19), the second driving voltage is applied to second electrode 25.For
The voltage that first strip electrode 24 at liquid crystal lens unit L1 (L2) both ends applies is maximum, in liquid crystal lens unit L1 (L2)
The voltage that first strip electrode 24 of the heart applies is minimum, and the trend successively decreased is presented by both ends to center for voltage and voltage is presented symmetrically
Distribution.So a kind of state of more smooth transformation can be showed in each liquid crystal lens unit L1 (L2) internal electric field.In liquid crystal
Because voltage symmetry is distributed in lens unit L1 (L2), liquid crystal molecule 23 refractive index can be presented necessarily under the influence of smooth electric field
Gradual change trend, therefore liquid crystal lens 2 can have good optical imagery property.By suitable voltage matches, obtain
Liquid crystal lens unit L1 (L2) optical path difference distribution can more coincide with the parabolic lens of standard.So actually watching
Process, it will be apparent that reduce crosstalk phenomenon, reduce viewing solid because dizziness caused by parallax is felt, improve stereo display effect and sight
The Shu Du seen.
The present invention implements the 3 d display device 10 provided, in 3D display, multiple first electrodes 24 and second electrode 25
Between electric field form liquid crystal lens unit L1 (L2), multiple first electrodes 24 are set, and each first electrode 24 are applied pair
Claim the first driving voltage, and the first driving voltage gradually increased to edge from the center of each liquid crystal lens unit L1 (L2)
Multiple first electrodes 24 are applied to, realize the degree of deflection of liquid crystal molecule 23 near accurate control first electrode 24 so that liquid
The light path curve of brilliant lens 2 and the light path Curve Matching of standard physical lens, presented in the performance of phase-delay quantity more smooth
State, hence it is evident that reduce adjacent two liquid crystal lens unit L1 and L2 intersections crosstalk phenomenon, lift the effect of stereoscopic display
With the comfort level of viewing, the optical path difference distribution of adjacent two liquid crystal lens unit L1 and L2 boundary, the light path after optimization are improved
Difference cloth approaches with ideal parabolic, so as to improve the 3 d display device 10 using liquid crystal lens 2 caused by 3D display
Crosstalk phenomenon, improve stereo display effect and viewing comfort level.
As shown in figure 4, optical path difference distribution overlaps relatively good with ideal parabolic, liquid crystal lens unit L1 and L2 boundary
Place, and the deviation of the optical path difference distribution curve of standard parabolic type lens are smaller, the ＇ of liquid crystal lens 2 provided relative to prior art
Optical path difference distribution curve have greatly improved, the intersection for reducing liquid crystal lens unit L1 and liquid crystal lens unit L2 occurs
Disturbing phenomenon, improve stereo display effect and viewing comfort level.
As shown in figs. 5 and 6, display unit 11 includes multiple display subelements 111, and display subelement 111 can be aobvious
Show the sub-pixel in panel 1, it is understood that be the display subregion in display panel 1.To ensure near first electrode 24
Suitable deflection angle occurs for liquid crystal molecule 23, and therefore, the width of setting first electrode 24 is no more than the width for showing subelement 111
Degree, the i.e. width of first electrode 24 are less than or equal to the width of display subelement 111, and the distance of two neighboring first electrode 24 is not
More than the width of display subelement 111, i.e., the distance of two neighboring first electrode 24 is less than or equal to the width of display subelement 111
Degree.It will be appreciated that the present invention, which provides at least one first electrode 24, covers a display subelement 111, it is accurate so as to realize
Ground control liquid crystal molecule 23 deflects so that the light path curve of liquid crystal lens 2 and the light path Curve Matching of standard physical lens, so
Would not be excessively fierce in the change of liquid crystal lens unit L1 and the electric-force gradient of liquid crystal lens unit L2 intersections, be advantageous to press down
The light path fluctuation at this is made, the crosstalk that adjacent two liquid crystal lens unit L1 and liquid crystal lens unit L2 intersections occur is reduced and shows
As lifting display effect.The light path curve of liquid crystal lens 2 is caused with the light path Curve Matching of standard physical lens, to enter one simultaneously
Step weakens crosstalk, improves the comfort level of viewing.
As shown in Fig. 4 and Fig. 6, the distance between two neighboring first electrode 24 is l, between liquid crystal lens unit L1 (L2)
Away from for p, then l≤kp, wherein 0 ＜ k≤0.1.For the screen of large scale screen, such as larger than 20 inches, the display of such a screen
The width dimensions of subelement 111 are larger, if being only less than display subelement according to the distance between two neighboring first electrode 24
111 width, cause the deflection angle that can not still realize accurate control liquid crystal molecule 23, can not then solve liquid crystal lens unit
The problem of L1 (L2) border disturbs, therefore, the Curve guide impeller for the first electrode 24 that the present embodiment provides, two neighboring first
The distance between electrode 24 l≤kp, first electrode 24 design even closer, and a display sub-pixel 111 is corresponding at least one
First electrode 24, first electrode 24 can accurately control the deflection angle of liquid crystal molecule 23, so that it is guaranteed that, liquid crystal lens unit L1
(L2) light path curve suppresses the light path fluctuation at this closer to nomianl para-curve, reduce adjacent two liquid crystal lens unit L1 with
The crosstalk phenomenon that L2 intersections occur, lift display effect.And the present invention provides the design standard of first electrode 24, simplify liquid
The production technology of brilliant lens 2.Liquid crystal lens unit L1 (L2) spacing p refers to be located at liquid crystal lens unit L1 in the present embodiment
(L2) distance between the center line of two first electrodes 24 of edge.
As shown in figure 4, the width for being located at the first electrode 24 of liquid crystal lens unit L1 (L2) boundary is b, and 10 μm≤b
≤30μm.Because adjacent liquid crystal lens unit L1 and liquid crystal lens unit L2 are in intersection, a first electrode 24 is shared, because
This, it is uncontrolled in the deflection of the liquid crystal molecule 23 of intersection, cause the light path curve that liquid crystal lens unit L1 (L2) is formed to exist
Intersection shake is violent, influences the viewing of 3 d display device 10, therefore, the of design liquid crystal lens unit L1 (L2) boundary
The width of one electrode 24, in addition, the electrical potential difference between first electrode 24 and second electrode 25 is relevant with the width of first electrode 24,
If the width of the first strip electrode 24 is larger, the magnitude of voltage of corresponding first driving voltage should be smaller, similarly, if first electrode
24 width is smaller, then the magnitude of voltage of corresponding first driving voltage should be larger, designs the less first electrode 24 of width, applies
The first driving voltage with regard to larger, so that it is guaranteed that whole liquid crystal molecules 23 of boundary deflect, so as to which the light path formed is bent
Line is near the mark parabola, you can the electric field for weakening adjacent lcd lens unit L1 and liquid crystal lens unit L2 in intersection is abnormal
Fluctuation, reduce lens aberration, improve stereos copic viewing comfort level.
As shown in figure 4, second electrode 25 is strip electrode, the corresponding second electrode of a liquid crystal lens unit L1 (L2)
25, the width of second electrode 25 is less than liquid crystal lens unit L1 (L2) spacing, i.e., is set between two neighboring second electrode 25
Have a space, the center line of liquid crystal lens unit L1 (L2) center line and corresponding second electrode 25 on the same line, i.e.,
Two electrodes 25 are arranged at liquid crystal lens unit L1 (L2) center, it is ensured that each liquid crystal lens unit L1 (L2) structure is identical.This reality
Each liquid crystal lens unit L1 (L2) for applying example offer is corresponding with multiple first electrodes 24, between two neighboring second electrode 25 away from
From the width more than or equal to the first electrode 24 positioned at liquid crystal lens unit L1 (L2) boundary, two neighboring second electrode 25
Between gap and first electrode 24 it is relative, weaken the electric-field intensity of liquid crystal lens unit L1 (L2) edge, improve the first electricity
The degree of deflection of liquid crystal molecule 23 near pole 24, more smooth state is presented in the performance of phase-delay quantity, reduces adjacent two
Liquid crystal lens unit L1 and L2 intersections crosstalk phenomenon, lift the effect of stereoscopic display and the comfort level of viewing.
As shown in figure 4, second electrode 25 is face electrode, the second driving voltage is applied to second electrode 25.First driving electricity
Electrical potential difference between pressure and the second driving voltage, produces electric field, electric field driven liquid between first substrate 21 and second substrate 22
Brilliant molecule 23 deflects, to form the liquid crystal lens unit L1 (L2) with graded index difference, because second electrode 25 is
Face electrode, it is easy to operate to apply voltage.More smooth state is presented in the performance of phase-delay quantity, hence it is evident that reduce adjacent two liquid
Brilliant lens unit L1 and L2 intersections crosstalk phenomenon, lift the effect of stereoscopic display and the comfort level of viewing.By to each
One strip electrode 24 applies symmetrical first driving voltage, applies the second driving voltage to corresponding second electrode 25, hence it is evident that
Improve the optical path difference distribution of adjacent two liquid crystal lens unit L1 and L2 boundary, optical path difference distribution and ideal parabolic after optimization
It is close, so as to improve the 3 d display device using liquid crystal lens 2 in crosstalk phenomenon caused by 3D display, improve three-dimensional aobvious
Show effect and viewing comfort level.
As shown in figure 4, present invention additionally comprises voltage control device (not shown), voltage control device control is put on
The first driving voltage in each first electrode 24 is with liquid crystal lens unit L1 (L2) center line symmetrical setting, and each first drives
The magnitude of voltage of dynamic voltage is gradually successively decreased by liquid crystal lens unit L1 (L2) border to center, liquid crystal lens unit L1 (L2) border
It is maximum to locate the magnitude of voltage of the first driving voltage on the first strip electrode 24, first positioned at liquid crystal lens unit L1 (L2) center
Driving voltage is minimum, close to 0 voltage.Electrical potential difference between first driving voltage and the second driving voltage produces electric-field intensity not
Deng electric field, in the presence of electric field, liquid crystal molecule 23 deflects with the change of electric-field intensity so that first substrate 21 and
The refractive index distribution gradient of liquid crystal layer between two substrates 22, form the liquid crystal lens unit L1 (L2) set in array, liquid crystal
Lens unit L1 (L2) is controlled to the light extraction of display panel, realizes stereoscopic display.
As shown in figure 4, the first driving voltage positioned at liquid crystal lens unit L1 and liquid crystal lens unit L2 boundaries is u0,
The threshold voltage of liquid crystal lens 2 is vth, u0≥vth, due to the electricity of liquid crystal lens unit L1 and the L2 driving voltage of intersection first
Pressure value size is relevant with the width of first electrode 24, if the width of the first strip electrode 24 is larger, corresponding first driving voltage
Magnitude of voltage should be smaller, similarly, if the width of first electrode 24 is smaller, the magnitude of voltage of corresponding first driving voltage should be compared with
Greatly, such processing is to meet that liquid crystal lens 2 are imaged required voltage, while solves liquid crystal lens 2 in 3D display,
For first electrode 24 nearby because electric-field intensity is larger, there is the problem of crosstalk with L2 intersections in adjacent two liquid crystal lens unit L1.
As shown in Fig. 4 and Fig. 7, first direction is horizontal direction, and third direction is formed with angle, angle with first direction
α, and α=70 ° ± 10 °, i.e. angle between the bearing of trend of first electrode 24 and horizontal direction are 60 °≤α≤80 °, herein
Under the conditions of, the arrangement cycle of first electrode 24 avoids producing moire fringes different from the arrangement cycle of display unit 11.Moreover, liquid crystal
Lens 2 are good to the spectrophotometric result of display panel 1, are not in crosstalk phenomenon.
As shown in figure 4, the cross sectional shape of the first strip electrode 24 provided by the invention is rectangle, arch or zigzag, just
Processed in making.Certainly, the cross sectional shape of first electrode 24 can also be other rules or irregular shape, belong to the present invention
Protection domain within, determination that should be undoubted, the cross sectional shape for the first strip electrode 24 that the present embodiment provides is only suitable
For for example, the first strip electrode 24 of regular shape is more prone to process.
Below by way of multiple specific embodiments, the present invention will be further described.
Embodiment 1：
As shown in Fig. 4 and Fig. 7, display panel 1 is one piece 5.5 inches, 720p (such as 1280 × 720pixels) liquid crystal surface
Plate.The relatively horizontal orientation of first electrode 24 is tilted to the left 75 ° and placed, and the width of its liquid crystal lens unit is that spacing is equal to
0.256mm, and the box thickness of liquid crystal lens 2 is 0.030mm, the ordinary refraction index n of liquid crystal molecule 23oFor 1.524, extraordinary ray
Refractive index neFor 1.824.Because the display unit 11 of display panel 1 includes three display subelements 111, it can thus be concluded that, each
The width for showing subelement 111 is about 31 μm.The width for setting first electrode 24 is 15 μm, two neighboring first electrode 24
The distance between be 17 μm, and second electrode 25 is face electrode.
Equally, the voltage added by the first electrode 24 at liquid crystal lens elementary boundary is maximum and is more than liquid crystal molecule
23 threshold voltage vth, from first electrode 24 corresponding at liquid crystal lens elementary boundary to positioned at liquid crystal lens unit center
Corresponding 24 making alives of other first electrodes gradually successively decrease, and on symmetrical wantonly two first electricity of liquid crystal lens unit center
Voltage symmetry added by pole 24 is equal.
For comparative analysis, another liquid crystal lens 2a, diagram such as Fig. 8 of its liquid crystal lens unit have been.Difference is,
There was only two first electrode 24a in the liquid crystal lens unit, first electrode 24a width is 15 μm.
It was found from Fig. 9 and Figure 10, two electrode structures of the curve ratios of multiple electrode structure liquid crystal lens of the present invention as a comparison
Liquid crystal lens closer to nomianl para-curve lens curve, and the light path fluctuation ratio of liquid crystal lens unit both sides of the present invention as pair
The light path fluctuation of the liquid crystal lens unit both sides of ratio improves significantly.That is, the friendship of adjacent lcd lens unit is reduced significantly
Due to the lens aberration that the unusual fluctuations of electric field are brought at boundary, stereos copic viewing comfort level is improved well.
It was found from figure, the two electrode structure liquid crystal lens of the curve ratios of multiple electrode structure liquid crystal lens of the present invention as a comparison
Closer nomianl para-curve lens curve, and the liquid crystal of the light path fluctuation ratio of liquid crystal lens unit both sides of the present invention as a comparison
The light path fluctuation of lens unit both sides improves significantly.That is, reduce significantly adjacent lcd lens unit intersection due to
The lens aberration that the unusual fluctuations of electric field are brought, stereos copic viewing comfort level is improved well.
Embodiment 2：
As shown in figure 11, the liquid that display panel 1b is one piece 5.5 inches, resolution ratio is 2K (such as 2048 × 1080pixels)
Crystal panel.Horizontal direction of each liquid crystal lens unit with respect to display panel 1b of liquid crystal lens, which is tilted to the right 75 °, places, its liquid crystal
The width of lens unit is that spacing is equal to 18 μm.Because display panel 1b display unit includes three display subelement 111b,
It can thus be concluded that each display subelement 111b width is about 15 μm.So, that is, it is 15 μ to allow first electrode 24b width
The distance between m, two neighboring first electrode 24b is 15 μm, and second electrode is face electrode.
Equally, the voltage added by the first electrode 24b at liquid crystal lens elementary boundary is maximum and more than liquid crystal point
The threshold voltage v of sonth, from first electrode 24b corresponding at liquid crystal lens elementary boundary in liquid crystal lens unit
Other first electrodes 24b institutes making alive gradually successively decreases corresponding to the heart, and on liquid crystal lens unit center symmetrical wantonly two the
Voltage symmetry added by one electrode 24b is equal.
Embodiment 3：
As shown in figure 12, the liquid that display panel 1c is one piece 28 inches, resolution ratio is 2K (such as 2048 × 1080pixels)
Crystal panel.Horizontal direction of each liquid crystal lens unit with respect to display panel 1c of liquid crystal lens, which is tilted to the left 70 °, places, its liquid crystal
The width of lens unit is that spacing is equal to 33 μm.Because display panel 1c display unit includes three display subelement 111c,
It can thus be concluded that each display subelement 111c width is about 57 μm.So, two at liquid crystal lens elementary boundary
First electrode 24c width is 15 μm, other first electrodes among the first electrode 24c on liquid crystal lens unit both sides
24c width is 20 μm, and the distance between two neighboring first electrode 24c is 30 μm, and second electrode is face electrode.
Equally, the voltage added by the first electrode 24c at liquid crystal lens elementary boundary is maximum and more than liquid crystal point
The threshold voltage v of sonth, from first electrode 24c corresponding at liquid crystal lens elementary boundary in liquid crystal lens unit
Other first electrodes 24c institutes making alive gradually successively decreases corresponding to the heart, and on liquid crystal lens unit center symmetrical wantonly two the
Voltage symmetry added by one electrode 24c is equal.
From above example 2 and 3, test result same as Example 1 can be equally drawn.That is, multi-electrode of the present invention
It is obliquely installed with respective drive mode due to can be with the liquid crystal molecule deflection angle of adjustable liquid crystal display lens unit everywhere so that liquid crystal
The light path curve of lens almost matches completely with the light path curve of nomianl para-curve physical lens, saturating so as to reduce adjacent lcd
The lens aberration that mirror unit intersection is brought due to the unusual fluctuations of electric field, weaken crosstalk, greatly improve stereos copic viewing and relax
Appropriateness.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (9)
1. 3 d display device, including liquid crystal lens and display panel, the liquid crystal lens are arranged at going out for the display panel
Light side, the display panel include the M × N number of display unit being arranged in array, and the M display unit is arranged in the first direction
Cloth, N number of display unit are arranged in a second direction, and the first direction is perpendicular to the second direction, the liquid crystal lens
Including the first substrate and second substrate being oppositely arranged, the second substrate is provided with second electrode, it is characterised in that：Described
One substrate is provided with multiple first electrodes, and each first electrode is intervally installed, and extends along third direction, and the described 3rd
Direction be different from the first direction, the second direction, when the liquid crystal lens are used for 3D display, the first substrate and
And the liquid crystal lens unit that is arranged in array identical formed with multiple structures, each liquid crystal lens list between the second substrate
Member is corresponding with the n first electrodes continuously arranged, and n >=4, the first driving voltage is with described corresponding to each first electrode
The center line symmetrical setting of liquid crystal lens unit, and gradually successively decreased by border to the center of the liquid crystal lens unit, it is described aobvious
Show that unit includes multiple display subelements, the display subelement is the sub-pixel of the display panel, the first electrode
Width is no more than the width for showing subelement, and the distance of the two neighboring first electrode is single no more than display
The width of member, wherein, at least one first electrode covers a display subelement.
2. 3 d display device as claimed in claim 1, it is characterised in that：The distance between two neighboring described first electrode
For l, the spacing of the liquid crystal lens unit is p, then l≤kp, wherein 0 ＜ k≤0.1.
3. 3 d display device as claimed in claim 1, it is characterised in that：Institute at the liquid crystal lens elementary boundary
The width for stating first electrode is b, and 10 μm≤b≤30 μm.
4. 3 d display device as claimed in claim 1, it is characterised in that：The second electrode is strip electrode, an institute
The corresponding second electrode of liquid crystal lens unit is stated, the width of the second electrode is less than between the liquid crystal lens unit
Away from, and the center line of the center line of the liquid crystal lens unit and the corresponding second electrode is on the same line.
5. 3 d display device as claimed in claim 1, it is characterised in that：The second electrode is face electrode.
6. the 3 d display device as any one of claim 1 to 5, it is characterised in that：Also include voltage control device,
The driving voltage that the voltage control device control is put in each first electrode is with the center of the liquid crystal lens unit
Line is symmetrical arranged, and the magnitude of voltage of each first driving voltage is gradually passed by border to the center of the liquid crystal lens unit
Subtract.
7. 3 d display device as claimed in claim 6, it is characterised in that：Institute at the liquid crystal lens elementary boundary
It is u to state first driving voltage corresponding to first electrode0, the threshold voltage of the liquid crystal lens is vth, u0≥vth。
8. 3 d display device as claimed in claim 1, it is characterised in that：The first direction is horizontal direction, described
Three directions and the first direction are formed with angle, and the angle is α, and 60 °≤α≤80 °.
9. 3 d display device as claimed in claim 1, it is characterised in that：The cross sectional shape of the first electrode be rectangle,
Arch or zigzag.
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| CN201410817168.1A CN105785575B (en) | 2014-12-24 | 2014-12-24 | 3 d display device |
| TW104139160A TWI579595B (en) | 2014-12-24 | 2015-11-25 | Stereoscopic display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203732853U (en) * | 2014-03-12 | 2014-07-23 | 京东方科技集团股份有限公司 | Liquid crystal lens and display device |
| CN103984181A (en) * | 2014-03-12 | 2014-08-13 | 京东方科技集团股份有限公司 | Liquid crystal lens and display device |
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| KR101649234B1 (en) * | 2009-12-30 | 2016-08-19 | 엘지디스플레이 주식회사 | Liquid Crystal Lens Electrically driven and Stereoscopy Display Device |
| CN102096200B (en) * | 2010-12-23 | 2012-04-18 | 深圳超多维光电子有限公司 | Stereoscopic display device and lens array thereof |
| KR20130046116A (en) * | 2011-10-27 | 2013-05-07 | 삼성디스플레이 주식회사 | 2 dimension/3 dimension switchable display apparatus |
| US9235103B2 (en) * | 2012-10-25 | 2016-01-12 | Au Optronics Corporation | 3D liquid crystal display comprising four electrodes alternately arrange between a first and second substrate |
| CN102928988B (en) * | 2012-11-06 | 2015-07-15 | 深圳市华星光电技术有限公司 | Three-dimensional display device, liquid crystal lens and driving method thereof |
| KR102013380B1 (en) * | 2013-03-20 | 2019-08-23 | 엘지디스플레이 주식회사 | Stereoscopic image display device of non glasses type |
| CN104122718A (en) * | 2014-07-18 | 2014-10-29 | 深圳超多维光电子有限公司 | Liquid crystal lens and stereo display device |
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| CN203732853U (en) * | 2014-03-12 | 2014-07-23 | 京东方科技集团股份有限公司 | Liquid crystal lens and display device |
| CN103984181A (en) * | 2014-03-12 | 2014-08-13 | 京东方科技集团股份有限公司 | Liquid crystal lens and display device |
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| TW201624059A (en) | 2016-07-01 |
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