CN106597589A - Slit grating and stereoscopic display apparatus - Google Patents
Slit grating and stereoscopic display apparatus Download PDFInfo
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- CN106597589A CN106597589A CN201710056676.6A CN201710056676A CN106597589A CN 106597589 A CN106597589 A CN 106597589A CN 201710056676 A CN201710056676 A CN 201710056676A CN 106597589 A CN106597589 A CN 106597589A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
Abstract
An embodiment of the invention provides a slit grating and a stereoscopic display apparatus and relates to the technical field of stereoscopic display. The slit grating comprises a first substrate provided with a first electrode, a second substrate and a mode switching layer arranged between the first substrate and the second substrate, wherein a surface of the second substrate is provided with a second electrode, and the mode switching layer comprises isolation arrays and liquid crystal arrays that are arranged in a staggered manner; when an electric field exists between the first electrode and the second electrode, a refractive index the isolation arrays and the liquid crystal arrays of the mode switching layer is a first refractive index; when no electric field exists between the first electrode and the second electrode, the refractive index of the isolation arrays of the mode switching layer is the first refractive index, the refractive index of the liquid crystal arrays of the mode switching layer is a second refractive index, and the second refractive index is different from the first refractive index. Display crosstalk which occurs when the slit grating is used for stereoscopic display can be alleviated.
Description
Technical field
The present invention relates to display technology field, in particular to a kind of slit grating and 3 d display device.
Background technology
Slit grating stereo display technique is a kind of bore hole 3D Display Technique of main flow, by the slit element before display screen
Left-eye view that display screen shows and right-eye view is set to project the left eye and right eye of people, then the shape Jing after brain fusion respectively
Into stereoscopically displaying images.
Slit grating stereo display technique is broadly divided into two kinds, is respectively fixed grating stereo Display Technique and adjustable
Formula liquid crystal grating stereo display technique.Fixed grating stereo Display Technique can be divided into forward type slit grating stereoscopic display skill again
Art and rear-mounted slit grating stereo display technique.Forward type slit grating technology is the slit unit that fits before display screen
Part, human eye is projected respectively using slit element by the parity column sub-pixel of display screen.Rear-mounted slit grating technology, slit unit
Part is located between backlight and display module, equally can be realized by the way that parallel slit light is parallel with the row pixel orientation of display screen
Stereoscopic display.But this fixed raster pattern technology can only realize that 3D shows, it is impossible to compatible 2D display contents.Adjustable liquid crystal
Raster Display Technology includes successively from top to bottom as shown in figure 1, bound a kind of TN types liquid crystal panel in the sightingpiston of display screen 10
Upper Polarizer 11, the upper substrate 12 that box is arranged and infrabasal plate 13, and the liquid crystal layer being filled between upper substrate and infrabasal plate
14, the wherein polarization direction of liquid crystal layer 14 is parallel with the light direction of display screen 10.In upper substrate 12 near the side of liquid crystal layer 14
Surface on be formed with plane-shape electrode.Multiple pellet electrodes, piece are formed on the surface of the side of liquid crystal layer 14 in infrabasal plate 13
Gap between shape electrode meets the slit grating condition that bore hole 3D shows.Needed for by being supplied to the TN type liquid crystal panels
Square-wave voltage, liquid crystal molecule deflects at counter electrode bar, and light herein passes through, and the light between electrode strip passes through, energy
Enough realize that 3D shows.
But this adjustable liquid crystal grating, the liquid crystal layer 14 of liquid crystal grating can be divided into multiple slit units, in such as Fig. 1 under
Substrate 13 has at electrode on the surface of the side of liquid crystal layer 14 distinguishes corresponding liquid crystal point with electrodeless being in liquid crystal layer 14
The unit of sub- difference yawing moment is adjacent slit unit.Slit unit is affected by intersection electrode edge field-effect, hands over
Liquid crystal molecule at boundary deflects a bit, and some are affected irregular alignment occur by electric field, and so as to cause string is shown
Disturb, have influence on 3D display effects, reduce the comfort level of beholder.
The content of the invention
In view of this, the invention provides a kind of slit grating and 3 d display device, the first substrate of slit grating with
Staggered isolation row and liquid crystal row are set between second substrate, wherein isolate the refractive index of row do not affected by electric field,
By making alive or voltage is not added with realizing being shown for the 2D and 3D during stereoscopic display, can improve aobvious when 3D shows again
Show crosstalk.
For achieving the above object, the present invention provides following technical scheme：
A kind of slit grating, slit grating includes：First substrate, is provided with first electrode；Second substrate, its surface is arranged
There is second electrode；Pattern switching layer, is arranged between first substrate and second substrate, including staggered isolation row and liquid
Crystalline substance row；Wherein, when there is electric field between first electrode and second electrode, pattern switching layer isolation row and liquid crystal row
Refractive index is first refractive index, when there is no electric field between first electrode and second electrode, the isolation row of pattern switching layer
Refractive index be first refractive index, the refractive index of the liquid crystal row of pattern switching layer is the second refractive index, and the second refractive index is different from
First refractive index.
Preferably, in above-mentioned slit grating, slit grating also includes polarizing layer, first orientation layer and second orientation layer,
Polarizing layer is stacked with first substrate, and first orientation layer is stacked with first electrode layer, second orientation layer and second electrode
Layer stackup is arranged.
Preferably, in above-mentioned slit grating, first electrode includes multiple pellet electrodes, multiple pellet electrodes and liquid crystal row one
One correspondence.
Preferably, in above-mentioned slit grating, second electrode includes multiple pellet electrodes, multiple pellet electrodes and liquid crystal row one
One correspondence.
Preferably, in above-mentioned slit grating, polarizing layer includes reflection beam splitting type polaroid and transmission-type polaroid, reflection
Beam splitting type polaroid is alternately disposed at first substrate with transmission-type polaroid.
Preferably, in above-mentioned slit grating, polarizing layer includes reflection beam splitting type polaroid, and reflection beam splitting type polaroid is arranged
In first substrate.
Preferably, in above-mentioned slit grating, the printing opacity direction of principal axis of polarizing layer is parallel with the direction of second orientation layer, and first takes
It is vertical to the direction of layer and the printing opacity direction of principal axis of polarizing layer.
Preferably, in above-mentioned slit grating, the first refractive index is the refractive index that liquid crystal arranges corresponding ordinary light, described
Second refractive index is the refractive index that liquid crystal arranges corresponding extraordinary ray.
Preferably, in above-mentioned slit grating, isolation is classified as rectangular structure, and isolation is listed in the row of isolation row and liquid crystal row
The length of side in cloth directionQ is interocular distance, WPFor pel spacing.
A kind of 3 d display device, 3 d display device includes 2D display units and above-mentioned slit grating, and 2D shows
Unit is fixedly connected with the second substrate of slit grating.
The beneficial effect that the present invention is realized：Embodiments provide a kind of slit grating and 3 d display device.
The slit grating includes first substrate, second substrate and pattern switching layer, and first substrate and second substrate are respectively arranged with
First electrode and second electrode, pattern switching layer includes the isolation row being arranged alternately and liquid crystal row, and to first electrode
And there is electric field between second electrode and do not exist in the case of two kinds of electric field, the refractive index for isolating row does not change,
The refractive index of liquid crystal row corresponds in both cases two kinds of different refractive indexes, makes the light respectively can be from all positions of second substrate
Put project and can only from second substrate it is corresponding isolation row position reflect and can not from correspondence liquid crystal arrange position injection.This
Isolation row are not affected by electric field in the scheme that bright embodiment is provided, and enable the slit grating in this programme effectively to overcome existing skill
Slit unit is affected the arrangement on liquid crystal molecule to produce by intersection electrode edge field-effect in art affects so as to affect to be used for
The problem of the display effect in stereoscopic display.
Description of the drawings
For the clearer explanation embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 shows the structural representation of adjustable liquid crystal Raster Display Technology provided in an embodiment of the present invention；
Fig. 2 shows a kind of structural representation of the slit grating that first embodiment of the invention is provided；
Fig. 3 shows another kind of structural representation of the slit grating that first embodiment of the invention is provided；
Fig. 4 shows another structural representation for the slit grating that first embodiment of the invention is provided；
Fig. 5 shows the yet another construction schematic diagram of the slit grating that first embodiment of the invention is provided；
Fig. 6 shows the structural representation during applied voltage of the slit grating that first embodiment of the invention is provided；
Fig. 7 shows the structural representation of the 3 d display device that second embodiment of the invention is provided；
Fig. 8 shows the schematic diagram of the 3D functions of the 3 d display device that second embodiment of the invention is provided.
Icon：10- display screens；The upper Polarizers of 11-；12- upper substrates；13- infrabasal plates；14- liquid crystal layers；100- slit light
Grid；110- first substrates；111- first electrodes；120- second substrates；121- second electrodes；130- pattern switching layers；131- every
From row；132- liquid crystal is arranged；140- polarizing layers；141- reflection beam splitting type polaroids；142- transmission-type polaroids；150- first orientations
Layer；160- second orientation layers；200- 3 d display devices；210-2D display units；211- display floaters；212- back light units；
220- left eyes；230- right eyes；240- left-eye views；250- right-eye views.
Specific embodiment
Existing adjustable slit grating can be due to electrode between adjacent slots unit for 3D states during stereoscopic display
Influence each other and produce crosstalk.
In view of the foregoing, inventor is through long-term research and substantial amounts of practice, there is provided a kind of slit grating and
3 d display device is improving existing issue.
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground description, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is right below
The detailed description of the embodiments of the invention for providing in the accompanying drawings is not intended to limit the scope of claimed invention, but
It is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not making creativeness
The every other embodiment obtained on the premise of work, belongs to the scope of protection of the invention.
First embodiment
First embodiment of the invention provides a kind of slit grating 100, refers to Fig. 2, and the slit grating 100 includes first
Substrate 110, second substrate 120 and pattern switching layer 130.Wherein, first substrate 110 and second substrate 120 are just to setting, mould
Formula switchable layer 130 is arranged at the position between first substrate 110 and second substrate 120.First substrate 110 is provided with first electrode
111, the surface of second substrate 120 is provided with second electrode 121.Pattern switching layer 130 include staggered isolation row 131 and
Liquid crystal row 132.
In embodiments of the present invention, as shown in Fig. 2 slit grating 100 also include polarizing layer 140, first orientation layer 150 with
And second orientation layer 160.Polarizing layer 140 is stacked with first substrate 110, and first orientation layer 150 is with first electrode 111 layer by layer
Folded to arrange, second orientation layer 160 is arranged with the layer stackup of second electrode 121.
As a kind of embodiment, as shown in Fig. 2 first electrode 111 is arranged at first substrate 110 just to second substrate
The surface of 120 side.Polarizing layer 140 is arranged at surface of the first substrate 110 away from the side of second substrate 120.First is electric
Pole 111 is just provided with first orientation layer 150 to the surface of the side of second substrate 120.Second electrode 121 and second orientation layer
160 are cascadingly set on the surface of second substrate 120.It is provided between first orientation layer 150 and second orientation layer 160 and replaces
The isolation row 131 and liquid crystal row 132 of arrangement.
As another embodiment, as shown in figure 3, polarizing layer 140, first electrode 111 and first orientation layer 150 according to
Secondary stacking is arranged at first substrate 110 just to the direction of the side of second substrate 120, and wherein polarizing layer 140 is arranged at the first base
Plate 110 is just to the surface of the side of second substrate 120.In addition, second electrode 121 and second orientation layer 160 are stacked gradually and set
Second substrate 120 is placed in towards the side of first substrate 110, wherein second electrode 121 is arranged at the surface of second substrate 120.
Be provided between first orientation layer 150 and second orientation layer 160 be arranged alternately isolate row 131 and liquid crystal row 132.
In embodiments of the present invention, the columns that row 131 and liquid crystal row 132 are isolated in accompanying drawing is only illustrated, and isolates row 131
And the columns of liquid crystal row 132 is not intended as limiting, isolating the columns of row 131 and liquid crystal row 132 can set as desired
It is fixed.
In embodiments of the present invention, Fig. 2 or Fig. 3 is referred to, first electrode 111 can be plane-shape electrode, first electrode
111 is the electrode layer of an entirety, and first electrode 111 is corresponding with first substrate 110, and plane-shape electrode is arranged at first substrate
110 surfaces, the whole pattern switching layer 130 of correspondence.
Preferably, Fig. 4 is referred to, first electrode 111 can also include multiple pellet electrodes.The sheet of first electrode 111
Electrode for elongate in shape electrode, it is and corresponding with the shape of liquid crystal row 132.First electrode 111 is arranged at the table of first substrate 110
Face, and multiple pellet electrodes of first electrode 111 correspond with liquid crystal row 132.That is, first electrode 111 is every
One liquid crystal row 132 of individual pellet electrode correspondence, for carrying out applied voltage to liquid crystal row 132.Being preferred embodiment will be more
Individual pellet electrode is electrically connected with mutually, in order to apply identical voltage to the pellet electrode of first electrode 111, to be formed and the
Identical electric field between two electrodes 121.
Further, as shown in figure 4, first orientation layer 150 includes many sub- oriented layers.Many sub- oriented layers are corresponded
It is arranged between multiple liquid crystal row 132 and multiple pellet electrodes of first electrode 111.And multiple pellet electrodes, many height take
It is arranged between isolation row 131 to layer and liquid crystal row 132.
In embodiments of the present invention, Fig. 2 or Fig. 3 is referred to, second electrode 121 can be plane-shape electrode, second electrode
121 is the electrode layer of an entirety, and second electrode 121 is corresponding with second substrate 120.Plane-shape electrode is arranged at the first base
The surface of plate 110, the whole pattern switching layer 130 of correspondence.
Preferably, Fig. 4 is referred to, second electrode 121 can also include multiple pellet electrodes.The sheet of second electrode 121
Electrode for elongate in shape electrode, it is and corresponding with the shape of liquid crystal row 132.Multiple pellet electrodes of second electrode 121 and liquid crystal
Row 132 are corresponded.That is, each pellet electrode one liquid crystal row 132 of correspondence of second electrode 121, for liquid crystal
Row 132 carry out applied voltage.It is preferred embodiment to be mutually electrically connected with multiple pellet electrodes of second electrode 121, with
It is easy to the pellet electrode to second electrode 121 to apply identical voltage, to form the identical electric field and second electrode 121 between.
Further, second orientation layer 160 include it is multiple with isolate the corresponding sub- oriented layer of row 131 and multiple and liquid crystal
The corresponding sub- oriented layer of row 132.Certainly, second orientation layer 160 can also only include sub- oriented layer corresponding with liquid crystal row 132.
It will of course be understood that, can be first electrode 111 and first electrode in second electrode 121 in the present embodiment
111 is plane-shape electrode, and second electrode 121 is multiple pellet electrodes, or second electrode 121 is plane-shape electrode, first electrode 111
For multiple pellet electrodes, it is not intended as limiting in the present embodiment.
Specifically, first electrode 111 and second electrode 121 can be transparency electrode, certainly, first electrode 111 and
The concrete material of second electrode 121 is not intended as limiting in embodiments of the present invention, or other transparent conductive materials.
In embodiments of the present invention, refer to Fig. 5, polarizing layer 140 can be include reflection beam splitting type polaroid 141 and
Transmission-type polaroid 142.Reflection beam splitting type polaroid 141 is alternately disposed at first substrate 110 with transmission-type polaroid 142.Its
In, reflection beam splitting type polaroid 141 is corresponded with liquid crystal row 132, and perspective formula polaroid is corresponded with row 131 are isolated.Instead
Beam splitting type polaroid 141 is penetrated for being reflected back the light that cannot be reflected, when for stereoscopic display, the utilization rate of light can be improved.
Wherein, reflecting polarized wafer can adopt sub-wavelength reflection beam splitting type polarizing diaphragm, the tool of certain reflection beam splitting type polaroid 141
Body type is not intended as limiting, or other reflection beam splitting type polaroids 141 in embodiments of the present invention.
In embodiments of the present invention, polarizing layer 140 can also only include reflection beam splitting type polaroid 141.Reflection beam splitting
Formula polaroid 141 is arranged at first substrate 110.Reflection beam splitting type polaroid 141 be used for be reflected back the light that cannot be reflected, with
When stereoscopic display, the utilization rate of light can be improved, and the loss of the light that liquid crystal row 132 are caused can be reduced.
Certainly, in embodiments of the present invention, polarizing layer 140 can also only include transmission-type polaroid 142, specific inclined
The polarisation sheet type that photosphere 140 is adopted is not intended as limiting in embodiments of the present invention.
In embodiments of the present invention, the printing opacity direction of principal axis of polarizing layer 140 is parallel with the direction of second orientation layer 160, and first
The direction of oriented layer 150 is vertical with the printing opacity direction of principal axis of polarizing layer 140.
Specifically, first substrate 110 and second substrate 120 are transparent base.First substrate 110 and second substrate
120 can be glass substrate, and certain first substrate 110 and second substrate 120 can also be other transparent bases, in the present invention
It is not intended as limiting in embodiment.
Liquid crystal row 132 are the liquid crystal material with electrically conerolled birefringence.Also, the liquid crystal material in liquid crystal row 132 has
Mobility, the property of the arrangement of the anisotropic with amorphous material molecule.When liquid crystal row 132 in the electric field when, due to liquid crystal be situated between
The anisotropy of electric constant and electrical conductivity, makes liquid crystal molecule be subject to a kind of active force for changing molecular axis orientation.This electric field
Caused torque, rotates can molecular axis.Therefore in this state, the optical property of liquid crystal row 132 can be with power-up
Different before, birefringence also can be affected by electric field.In embodiments of the present invention, the refractive index of liquid crystal correspondence ordinary light is
nO, the refractive index of liquid crystal correspondence extraordinary ray is nE.Under different electric field controls, the refractive index of liquid crystal row 132 can be in nOAnd nEIt
Between change.
In embodiments of the present invention, it is transparent solid material to isolate row 131, and the isolation row 131 will not be subject to electric field
Impact and make refractive index change.Isolation row 131 can open liquid crystal row 132 with significant interval in embodiments of the present invention.Tool
Body, isolation row 131 can be UV uv-curing type liquid crystal materials, and its forming method can be fused into molten state by heating
It is coated on after liquid crystal and is obtained with alignment layer surface resolidification.Certainly, isolate row 131 and be not intended as limit in embodiments of the present invention
Fixed, or other transparent solid materials, such as optical cement of refractive index monomer etc., and refractive index will not be because of electric field
Impact and change.When it is solid-state and transparent material with birefringence to isolate row 131, the refraction of correspondence ordinary light
Rate is nO', the refractive index of the correspondence extraordinary ray of liquid crystal row 132 is nE', the isolation row 131 in the present embodiment and liquid crystal row 132 it
Between should meet nE>nE'=nO>nO′。
Isolation row 131 are rectangular structure, and rectangular structure is in the arragement direction for isolating row 131 and liquid crystal row 132
The length of side is preferablyQ is interocular distance, WPFor pel spacing.The pel spacing is that slit grating 100 is used for solid
During display, the pel spacing of the 2D display units of 3 d display device 200.Certainly, the length of side for isolating row 131 is not intended as this reality
Apply the restriction in example.
The arrangement mode of liquid crystal when without electric field of liquid crystal row 132 is as shown in Figure 3.Fig. 6 is referred to, in liquid crystal row 132
When there is electric field, the arrangement mode of liquid crystal changes relative in Fig. 3 without liquid crystal arrangement mode during electric field, liquid crystal row
132 refractive index as electric field and change.The electric field formed in liquid crystal row 132 can be by first electrode
111 and the applied voltage of second electrode 121 realize.In the reality for forming electric field in liquid crystal row 132 by way of applied voltage
In applying mode, when to 121 not applied voltage of first electrode 111 and second electrode, it is possible to achieve without electricity in liquid crystal row 132
.Illustrated as a example by forming electric field by applied voltage between first electrode 111 and second electrode 121 below.
When to there is electric field between first electrode 111 and second electrode 121, the isolation row 131 of pattern switching layer 130
And the refractive index of liquid crystal row 132 is first refractive index.Specifically, to first electrode 111 and the applied voltage of second electrode 121
Can be that mutually different voltage is led to first electrode 111 and second electrode 121, so that first electrode 111 and second electrode
Voltage difference is produced between 121 and form electric field.When there is no electric field between first electrode 111 and second electrode 121, pattern
The refractive index of the isolation row 131 of switchable layer 130 is first refractive index, and the refractive index of the liquid crystal row 132 of pattern switching layer 130 is the
Two refractive indexes.First refractive index is different from the second refractive index.Wherein, first refractive index is the refractive index of the corresponding ordinary light of liquid crystal
For nO, the second refractive index is n for the refractive index of the corresponding extraordinary ray of liquid crystalE。
When slit grating 100 is used for stereoscopic display, the printing opacity direction of principal axis of polarizing layer 140 can be upper inclined with display floater
The printing opacity direction of principal axis of mating plate is parallel, does not now exist under electric field conditions between first electrode 111 and second electrode 121, light Jing
Cross polarizing layer 140 from first substrate 110 after isolation row 131 to project, light have rotated after liquid crystal row 132 90 ° so as to
Polarizing layer 140 from first substrate 110 is projected.When there is electric field between first electrode 111 and second electrode 121, tool
Body can lead to different voltages to first electrode 111 and second electrode 121 to make first electrode 111 and second electrode
There is electric field between 121.Liquid crystal molecule deflection in liquid crystal row 132, after light is through isolating row 131 and from first substrate 110
Polarizing layer 140 is projected, and polarizing layer 140 of the light after liquid crystal row 132 from first substrate 110 is projected.
Certainly, the printing opacity direction of principal axis of polarizing layer 140 can also be vertical with the printing opacity direction of principal axis of the upper polaroid of display floater,
Now when first electrode 111 and second electrode 121 are not present under electric field conditions, light is after isolation row 131 from first substrate
Polarizing layer 140 on 110 is projected, and the polarizing layer 140 that light can be from first substrate 110 after liquid crystal row 132 is projected.First
Can be specifically logical to first electrode 111 and second electrode 121 when there is electric field between electrode 111 and second electrode 121
Different voltage makes the presence of electric field between first electrode 111 and second electrode 121, liquid crystal molecule deflection, light in liquid crystal row 132
Polarizing layer 140 after isolation row 131 and from first substrate 110 is projected, and light can not be from the first base after liquid crystal row 132
Polarizing layer 140 on plate 110 is projected.
Second embodiment
Second embodiment of the invention provides a kind of 3 d display device 200, refers to Fig. 7, the 3 d display device 200
Including the slit grating 100 that 2D display units 210 and first embodiment of the invention are provided.2D display units 210 and slit light
The second substrate 120 of grid 100 is fixedly connected.
Specifically, 2D display units 210 can be liquid crystal display, including back light unit 212 and display floater
211, as shown in Figure 7.Wherein, back light unit 212 can include LED (Led Emitting Diode) or CCFL (Cold
Cathode Fluorescent Lamp) etc. light emitting source straight-down negative or edge-lit backlight unit 212.Display floater 211 can be with
It is TFT_LCD (Thin Film Transistor-Liquid Crystal Display), or other display floaters
211.Certainly, when 2D display units 210 are self light emitting, back light unit 212 can also be omitted, in present invention enforcement
It is not intended as limiting in example.The side of the display floater 211 of 2D display units 210 is consolidated with the second substrate 120 of slit grating 100
Fixed connection.When 3 d display device 200 is forward type, the upper polaroid of display floater 211 and the second substrate of slit grating 100
120 are fixedly connected.When 3 d display device 200 is for rear-mounted, the of the down polaroid of display floater 211 and slit grating 100
Two substrates 120 are fixedly connected.
Further, the upper polaroid of display floater 211 is orthogonal with the printing opacity direction of principal axis of down polaroid.Meet mutual
It is vertical to provide higher extinction ratio to enable, make the contrast of display floater 211 higher.
In embodiments of the present invention, the printing opacity direction of principal axis of the upper polaroid of display floater 211 can be with slit grating 100
The printing opacity direction of principal axis of polarizing layer 140 is parallel.
When to 121 applied voltage of first electrode 111 and second electrode, make first electrode 111 and second electrode 121 it
Between produce electric field, the refractive index for making the liquid crystal row 132 of liquid crystal slit grating 100 changes.Specifically, to first electrode 111
And the applied voltage of second electrode 121 can lead to mutually different voltage to first electrode 111 and second electrode 121, with
Make to produce voltage difference and form electric field between first electrode 111 and second electrode 121.So as to the light that display floater 211 sends can
To reflect from the corresponding polarizing layer 140 of liquid crystal row 132, and the refractive index for isolating row 131 does not change with electric field, from light
Can reflect from the corresponding polarizing layer 140 of isolation row 131, so as to liquid crystal row 132 are all presented on state of with row 131 are isolated, make human eye
Left eye 220 and the picture of display floater 211 observed of right eye 230 it is consistent, therefore realize 2D dispaly states.
When not to 121 applied voltage of first electrode 111 and second electrode, the light sent from display floater 211 without
Method is reflected from the corresponding polarizing layer 140 of liquid crystal row 132, can be reflected from the corresponding polarizing layer 140 of isolation row 131.So as to liquid
Brilliant row 132 are presented dark-state, and isolation row 131 are presented on state of, that is, isolate row 131 and liquid crystal row 132 formed periodic arrangement it is black,
Informal voucher line.As shown in figure 8, the left eye 220 and right eye 230 of user can respectively get 2D by slit grating 100 shows single
Left-eye view 240 and right-eye view 250 in unit 210, so as to realize 3D dispaly states, and effectively overcomes in prior art
The crosstalk that adjustable grating is caused due to electrode edge field-effect between adjacent slots unit when realizing that 3D shows.
The printing opacity direction of principal axis of the upper polaroid of display floater 211 can also be with the light transmission shaft of polarizing layer 140 of slit grating 100
Direction is vertical.So as to when different voltages are applied to first electrode 111 and second electrode 121,3 d display device 200 is real
Existing 3D dispaly states, when not to 121 applied voltage of first electrode 111 and second electrode, 3 d display device 200 is realized
2D dispaly states.
To sum up, a kind of slit grating and 3 d display device are embodiments provided.The slit grating includes the
One substrate, second substrate and pattern switching layer, first substrate and second substrate are respectively arranged with first electrode and second
Electrode, pattern switching layer includes the isolation row being arranged alternately and liquid crystal row, and between first electrode and second electrode
There is electric field and do not exist in the case of two kinds of electric field, the refractive index for isolating row does not change, the refractive index of liquid crystal row exists
Two kinds of different refractive indexes of correspondence in the case of two kinds, make light respectively can project from all positions of second substrate and can only be from the
Project and can not project from the position of correspondence liquid crystal row in the position of two substrates correspondence isolation row.Scheme provided in an embodiment of the present invention
Middle isolation row are not affected by electric field, enable the slit grating in this programme effectively to overcome slit unit in prior art to be handed over
Electrode edge field-effect affects to produce the arrangement of liquid crystal molecule at boundary affects so as to affect to be imitated for the display in stereoscopic display
The problem of fruit.
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, above in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than the embodiment of whole.Present invention enforcement generally described and illustrated in accompanying drawing herein
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention of the above to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
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 describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, or should
Orientation or position relationship that invention product is usually put when using, are for only for ease of the description present invention and simplify description, and not
Be indicate or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.Additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and can not manage
Solve to indicate or implying relative importance.
In describing the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or one
The connection of body ground；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, can be with concrete condition understanding
State term concrete meaning in the present invention.
Claims (10)
1. a kind of slit grating, it is characterised in that slit grating includes：
First substrate, is provided with first electrode；
Second substrate, its surface is provided with second electrode；
Pattern switching layer, is arranged between first substrate and second substrate, including staggered isolation row and liquid crystal row；
Wherein, when there is electric field between first electrode and second electrode, pattern switching layer isolation row and liquid crystal row
Refractive index is first refractive index, when there is no electric field between first electrode and second electrode, the isolation row of pattern switching layer
Refractive index be first refractive index, the refractive index of the liquid crystal row of pattern switching layer is the second refractive index, and the second refractive index is different from
First refractive index.
2. slit grating according to claim 1, it is characterised in that the slit grating also includes that polarizing layer, first take
To layer and second orientation layer, the polarizing layer is stacked with the first substrate, the first orientation layer and described first
Electrode layer is stacked, and the second orientation layer is stacked with the second electrode lay.
3. slit grating according to claim 1, it is characterised in that the first electrode includes multiple pellet electrodes, many
Individual pellet electrode is corresponded with liquid crystal row.
4. slit grating according to claim 1, it is characterised in that the second electrode includes multiple pellet electrodes, many
Individual pellet electrode is corresponded with liquid crystal row.
5. slit grating according to claim 2, it is characterised in that the polarizing layer include reflection beam splitting type polaroid with
And transmission-type polaroid, the reflection beam splitting type polaroid is alternately disposed at the first substrate with the transmission-type polaroid.
6. slit grating according to claim 2, it is characterised in that the polarizing layer includes reflection beam splitting type polaroid,
The reflection beam splitting type polaroid is arranged at the first substrate.
7. slit grating according to claim 2, it is characterised in that the printing opacity direction of principal axis of the polarizing layer and described second
The direction of oriented layer is parallel, and the direction of the first orientation layer is vertical with the printing opacity direction of principal axis of the polarizing layer.
8. slit grating according to claim 1, it is characterised in that it is corresponding ordinary that the first refractive index is that liquid crystal is arranged
The refractive index of light, second refractive index is the refractive index that liquid crystal arranges corresponding extraordinary ray.
9. slit grating according to claim 1, it is characterised in that the isolation is classified as rectangular structure, the isolation
It is listed in the length of side of the arragement direction of the isolation row and liquid crystal rowQ is interocular distance, WPFor between pixel
Away from.
10. a kind of 3 d display device, it is characterised in that 3 d display device includes 2D display units and claim 1-9
Slit grating described in any one, the 2D display units are fixedly connected with the second substrate of the slit grating.
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| CN114415412A (en) * | 2022-03-29 | 2022-04-29 | 惠科股份有限公司 | Flexible display panel and preparation method thereof |
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| CN106597589B (en) | 2020-07-31 |
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