CN106647004A - Display member and display device containing same - Google Patents
Display member and display device containing same Download PDFInfo
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- CN106647004A CN106647004A CN201710056336.3A CN201710056336A CN106647004A CN 106647004 A CN106647004 A CN 106647004A CN 201710056336 A CN201710056336 A CN 201710056336A CN 106647004 A CN106647004 A CN 106647004A
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- blue phase
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133504—Diffusing, scattering, diffracting elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13793—Blue phases
Abstract
The invention provides a display member and a display device containing the same. The display member has a first substrate, a blue-phase liquid crystal layer arranged on one side of the first substrate, a waveguide layer arranged on one side where the blue-phase liquid crystal layer is far away from the first substrate, an optical grating layer arranged on one side where the waveguide layer is close to the blue-phase liquid crystal layer, a first and second electrodes independently arranged on the first substrate or one side where the waveguide layer is close to the blue-phase liquid crystal layer, a light source arranged on one end of the waveguide layer and a light shielding layer arranged on the other end of the waveguide layer, wherein refractive index of the waveguide layer is greater than refraction index of the blue-phase liquid crystal layer, the optical grating layer and the second substrate; and refraction index of an initial state of the blue-phase liquid crystal layer is the same as refraction index of the optical grating layer. Color filters and polaroid sheets can be unnecessary for the display member, so gray scale display can be achieved and high transmittance can be achieved.
Description
Technical field
The present invention relates to display technology field, specifically, is related to display device and the display device containing it.
Background technology
Available liquid crystal Display Technique, is usually used two-layer polaroid and realizes that GTG shows, but the transmission of double-layered polarizers
Rate only has 43%*80%=35% or so, greatly reduces the transmitance of display device.In addition, available liquid crystal Display Technique, makes
The change of color is realized with colored filter, but colored filter there are two problems, one is that colour gamut is not high enough, and two are
Transmitance is not high, and only 33% or so.
Thus, current liquid crystal display device still has much room for improvement.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.For this purpose, the present invention
One purpose is to propose that one kind does not use polaroid, do not use colored filter, the display of transmitance height or process is simple
Device.
In one aspect of the invention, the invention provides a kind of display device.Embodiments in accordance with the present invention, the display
Device includes：First substrate；Blue phase liquid crystal layer, the blue phase liquid crystal layer is arranged at the side of the first substrate, ducting layer, institute
State ducting layer and be arranged at side of the blue phase liquid crystal layer away from the first substrate；Grating layer, the grating layer is arranged at institute
Ducting layer is stated near the side of the blue phase liquid crystal layer；First electrode, the first electrode is arranged at the first substrate or institute
Ducting layer is stated near the side of the blue phase liquid crystal layer；Second electrode, the second electrode is arranged at the first substrate or institute
Ducting layer is stated near the side of the blue phase liquid crystal layer；Light source, the light source is arranged at one end of the ducting layer, light shield layer,
The light shield layer is arranged at the other end of the ducting layer, wherein, the refractive index of the ducting layer is more than the blue phase liquid crystal layer
With the refractive index of the grating layer, and the refractive index phase of the refractive index of the blue phase liquid crystal layer original state and the grating layer
Together.Inventor has found, by arranging ducting layer and grating layer, it is possible to use waveguide optical grating coupling controls out light, and passes through
Principle of Grating Diffraction is capable of achieving light splitting, it is not necessary to use colored filter, further adjusts waveguide optical grating coupling by blue phase liquid crystal
That what is closed goes out light, it is possible to achieve GTG shows, it is not necessary to use polaroid, and the display device transmitance is high, it is adaptable to Transparence Display
Show with augmented reality, meanwhile, using blue phase liquid crystal, it is not necessary to be orientated, preparation process is simple.
Embodiments in accordance with the present invention, the display device is further included：Second substrate, the second substrate is arranged at institute
State side of the ducting layer away from the blue phase liquid crystal layer.
It is close that embodiments in accordance with the present invention, the first electrode and the second electrode may be contained within the first substrate
Insulating barrier is provided between the side of the blue phase liquid crystal layer, and the first electrode and second electrode.
Embodiments in accordance with the present invention, the first electrode is arranged at the first substrate near the blue phase liquid crystal layer
Side, the second electrode is arranged between the ducting layer and the grating layer.
Embodiments in accordance with the present invention, the first electrode is arranged at the first substrate near the blue phase liquid crystal layer
Side, the second electrode is arranged at the grating layer near the side of the blue phase liquid crystal layer.
Embodiments in accordance with the present invention, the first electrode is arranged at the grating layer near the one of the blue phase liquid crystal layer
Side, the second electrode is arranged between the ducting layer and the grating layer.
Embodiments in accordance with the present invention, at least one of the first electrode and second electrode include multiple interval settings
Strip electrode.
Embodiments in accordance with the present invention, the grating layer includes multiple sub-gratings structures, and the plurality of sub-gratings structure
Screen periods it is incomplete same.
Embodiments in accordance with the present invention, forming the material of the ducting layer includes silicon nitride, Lithium metaniobate, titanium dioxide and glass
At least one in glass.
Embodiments in accordance with the present invention, the material for forming the grating layer is transparent organic material.
In another aspect of this invention, the invention provides a kind of display device.Embodiments in accordance with the present invention, the display
Equipment includes foregoing display device.The display device need not be high using polaroid and colorized optical filtering, light transmission rate, fits
Show for Transparence Display and augmented reality, simultaneously because need not be orientated using blue phase liquid crystal, preparation process is simple, operation side
Just.
Description of the drawings
Fig. 1 shows the structural representation of display device according to an embodiment of the invention.
Fig. 2 shows the structural representation of display device in accordance with another embodiment of the present invention.
Fig. 3 shows the structural representation of the display device according to further embodiment of the present invention.
Fig. 4 shows the structural representation of the display device according to another embodiment of the invention.
Fig. 5 shows the structural representation of the display device according to another embodiment of the invention.
Fig. 6 shows the structural representation of the display device according to another embodiment of the invention.
Fig. 7 shows the structural representation of the display device according to another embodiment of the invention.
Fig. 8 shows blue phase liquid crystal molecules align schematic diagram according to an embodiment of the invention.
Fig. 9 shows blue phase liquid crystal according to an embodiment of the invention type of drive schematic diagram under the electric field.
Specific embodiment
Embodiments of the invention are described below in detail.The embodiments described below is exemplary, is only used for explaining this
It is bright, and be not considered as limiting the invention.Unreceipted particular technique or condition in embodiment, according to text in the art
Offer described technology or condition or carry out according to product description.Agents useful for same or the unreceipted production firm person of instrument,
For can pass through city available from conventional products.
In one aspect of the invention, the invention provides a kind of display device.Embodiments in accordance with the present invention, reference picture
1- Fig. 4, the display device includes：First substrate 100；Blue phase liquid crystal layer 10, the blue phase liquid crystal layer 10 is arranged at described first
The side of substrate 100, ducting layer 20, the ducting layer 20 is arranged at the blue phase liquid crystal layer 10 away from the first substrate 100
Side；Grating layer 30, the grating layer 30 is arranged at the ducting layer 20 near the side of the blue phase liquid crystal layer 10；First
Electrode 40, the first electrode 40 is arranged at the first substrate 100 or the ducting layer 20 near the blue phase liquid crystal layer 10
Side；Second electrode 50, the second electrode 50 is arranged at the first substrate 100 or the ducting layer 20 near the indigo plant
The side of phase liquid crystal layer 10；Light source 60, the light source 60 is arranged at one end of the ducting layer 20, light shield layer 70, the shading
Layer 70 is arranged at the other end of the ducting layer 20, wherein, the refractive index of the ducting layer 20 is more than the blue phase liquid crystal layer 10
With the refractive index of the grating layer 30, and the refraction of the refractive index of the original state of the blue phase liquid crystal layer 10 and the grating layer 30
Rate is identical.Inventor has found, by arranging ducting layer and grating layer, it is possible to use waveguide optical grating coupling controls out light, and
Light splitting is capable of achieving by Principle of Grating Diffraction, it is not necessary to use colored filter, further Waveguide is adjusted by blue phase liquid crystal
What grid were coupled goes out light, it is possible to achieve GTG shows, it is not necessary to use polaroid, and the display device transmitance is high, and colour gamut meets will
Ask, it is adaptable to which Transparence Display and augmented reality show, meanwhile, using blue phase liquid crystal, it is not necessary to be orientated, preparation process is simple.
It should be noted that blue phase liquid crystal is a kind of special phase, it is generally present in cholesteric phase and isotropism state
Narrow temperature region in.The arrangement architecture of blue phase liquid crystal also different from other liquid crystal phases, as shown in figure 8, nematic liquid crystal
Spatiall induction without chiral molecule effect, therefore molecule is spatially orientations in one direction, in X and Y-axis all
Non-distorted phenomenon；Cholesteric liquid crystal causes molecule along helical axis X in week because the spatiall induction distortion action of chiral molecule
The rotation arrangement of phase property.Blue phase liquid crystal then shows the molecules align situation that both liquid crystal molecules are differed completely, and molecule exists
What short distance was spatially presented is double aligned twisted structures, that is to say, that blue phase liquid crystal molecule is distorting rotary rowed along helical axis X
While row, the distortion rotation arrangement along helical axis Y is also participated in.In molecular spiral displacement and the competitive interaction of defect
Under, the free energy of blue phase is reduced.This certainly will spatially have many dislocations and defect in three-dimensional long-range, but blue phase is exactly
The thermodynamically stable phase that such a coexists with dislocation.
The operation principle of blue phase liquid crystal is based on Kerr effects.Blue phase liquid crystal is placed between two parallel electrode plates and is just constituted
One Kerr box, extra electric field is acted on blue phase liquid crystal (BP-LC) by parallel electrode plate, under External Electrical Field, BP-LC
Just it is changed into optic uniaxial crystal, its optical axis direction is parallel with direction of an electric field.When line polarized light is with perpendicular to the direction of electric field
During by BP-LC, two bunch polarized light will be decomposed into, a branch of light vector is along direction of an electric field, light vector and the electricity of another beam
Field is vertical, and their refractive index is referred to as normal refraction rate no and abnormal refraction rate ne, and blue phase liquid crystal is positive or negative birefringence
Material, is positive or negative, n=ne-no=λ KE2 depending on ne-no values, and in formula, λ is the wavelength of incident illumination, and K is Kerr constants,
E is extra electric field.Blue phase liquid crystal type of drive schematic diagram under the electric field is shown in Fig. 9.
In an embodiment of the present invention, the concrete composition of blue phase liquid crystal layer is not particularly limited, can be any for this area
Meet desired blue phase liquid crystal.In some specific examples of the present invention, blue phase liquid crystal layer includes blue phase liquid crystal and polymer, tool
Body, blue phase liquid crystal can include parent liquid crystal (such as BPH006-01) and chiral agent (such as R5011), and polymer can include can
Polymerisable liquid crystal (RM, such as RM257), prepolymer (such as LA) and light trigger (such as 184).Thus, it is possible to effectively by applying not
Same voltage realizes that GTG shows, and original state need not be orientated, and preparation technology is greatly simplified.
In addition, the ducting layer arranged in display device according to embodiments of the present invention and grating layer constitute waveguide optical grating coupling
Device, meets below equation：Neff2 π/λ=2 π/λ sin θs+m2 π/P, m=0, ± 1, ± 2 ..., wherein, Neff is waveguide
The effective refractive index of layer, λ is the wavelength of light, and θ is the incident angle of light, and P is screen periods, and light just can be from Waveguide
Grid are coupling luminous, and when being unsatisfactory for above-mentioned condition, waveguide optical grating will not be coupling luminous.Specifically, in an embodiment of the present invention,
It is identical with the refractive index of the original state of blue phase liquid crystal layer (isotropic state) by the refractive index for arranging grating layer, can make
When obtaining not powered, i.e., when blue phase liquid crystal layer is in isotropism, grating does not work, and waveguide optical grating will not be coupling luminous, and is adding
When electric, in the presence of electric field E, blue phase liquid crystal layer produces anisotropy, the now refraction of blue phase liquid crystal layer along direction of an electric field
Rate becomes big, and the light in waveguide can be coupled out from grating, forms GTG, and according to the difference of voltage, the GTG of generation is not yet
Equally, so the present invention adjusts the refractivity of grating and surrounding medium using blue phase liquid crystal, in the feelings for not using polaroid
Under condition, realize GTG and show.
Specifically, with reference to Fig. 5 and Fig. 6, the operation principle of display device according to embodiments of the present invention is as follows：By adjusting
The driving voltage of blue phase liquid crystal layer, realizes liquid crystal layer refractive index from n (refractive index of isotropic state) to no (normal refractions
Rate) or ne (abnormal refraction rate) transformation.When not powered, blue phase liquid crystal is in isotropism, and refractive index is n, due to grating layer folding
The n that rate is blue phase liquid crystal layer is penetrated, now optical grating construction is coupled out without light equivalent to not existing from waveguide, be L0 states (figure
5)；When it is no or ne that applying certain voltage causes the refractive index of blue phase liquid crystal layer, the index contrast of grating layer and liquid crystal layer
Maximum, the efficiency highest that this time is coupled out from waveguide is L255 states (Fig. 6)；Remaining gray scale states, can pass through will
The refractive index of liquid crystal layer changes to realize between n and no or ne, i.e., plus different voltage realize different GTGs, now for
L1-L255 states, realize GTG and show.Further, since the electrostrictive property of blue phase liquid crystal, liquid crystal original state need not
Orientation, is compared to other liquid crystal display modes, is also simplified in technique.
Embodiments in accordance with the present invention, reference picture 1- Fig. 4, display device may further include：Second substrate 200,
The second substrate 200 is arranged at side of the ducting layer 20 away from the blue phase liquid crystal layer 30.Thus, it is possible to preferably prop up
The structure of support display device, improves the using effect of display device.
Embodiments in accordance with the present invention, the refractive index of second substrate 200 is less than the refractive index of ducting layer 20.Thereby, it is possible to
Ensure that light is totally reflected in ducting layer, while second substrate can be used as assistant waveguide, to ensure light to ripple
The coupling efficiency of conducting shell.
The concrete material of embodiments in accordance with the present invention, first substrate and second substrate is not particularly limited, this area skill
Art personnel can be selected as needed.In some embodiments of the invention, first substrate and second substrate can be respective
It is independently glass substrate, polymeric substrates, metal basal board etc..Under preferable case, first substrate and second substrate are glass base
Plate, it is possible thereby to there is good light transmission, mechanical property, and it is easy to process, cost is relatively low.
The concrete set-up mode of embodiments in accordance with the present invention, first electrode 40 and second electrode 50 is not particularly limited,
As long as suitable voltage can be provided for blue phase liquid crystal layer, those skilled in the art can flexibly select as needed.
Some embodiments of the invention, may be contained within reference to Fig. 1, the first electrode 40 and the second electrode 50
The first substrate 100 sets between the side of the blue phase liquid crystal layer 10, and the first electrode 40 and second electrode 50
It is equipped with insulating barrier 80.Thus, it is possible to convenient apply electric field to blue phase liquid crystal layer, it is easy to control the deflection of blue phase liquid crystal, and then
Realize different GTGs.
Some embodiments of the invention, with reference to Fig. 2, the first electrode 40 is arranged at the first substrate 100 and leans on
The side of the nearly blue phase liquid crystal layer 10, the second electrode 50 is arranged between the ducting layer 20 and the grating layer 30.
Thus, it is possible to convenient apply electric field to blue phase liquid crystal layer, it is easy to control the deflection of blue phase liquid crystal, and then realize different ashes
Rank.
Some embodiments of the invention, with reference to Fig. 3, the first electrode 40 is arranged at the first substrate 100 and leans on
The side of the nearly blue phase liquid crystal layer 10, the second electrode 50 is arranged at the grating layer 30 near the blue phase liquid crystal layer 10
Side.Thus, it is possible to convenient apply electric field to blue phase liquid crystal layer, it is easy to control the deflection of blue phase liquid crystal, and then realize not
Same GTG.
Some embodiments of the invention, with reference to Fig. 4, the first electrode 40 is arranged at the grating layer 30 near institute
The side of blue phase liquid crystal layer 10 is stated, the second electrode 50 is arranged between the ducting layer 20 and the grating layer 30.Thus,
Easily electric field can be applied to blue phase liquid crystal layer, it is easy to control the deflection of blue phase liquid crystal, and then realize different GTGs.
Embodiments in accordance with the present invention, first electrode and second electrode can be independently each plane-shape electrode or by multiple
Strip electrode is constituted, and those skilled in the art can be configured as needed.In some embodiments of the invention, reference picture
1- Fig. 4, at least one of the first electrode 40 and second electrode 50 include multiple spaced strip electrodes.Thus,
Can preferably realize showing with the liquid crystal deflection of independent control regional.
Embodiments in accordance with the present invention, form the material of first electrode and second electrode it is not also specifically limited, this area
Technical staff can flexibly select as needed.In some embodiments of the invention, first electrode and second electrode are formed
Material includes but is not limited to tin indium oxide, fluorine-doped tin oxide, aluminium-doped zinc oxide etc..Thus, with good light transmission, have
Beneficial to the display effect for improving display device.
Embodiments in accordance with the present invention, in order to realize preferable display effect, the refractive index of ducting layer will be significantly greater than
The refractive index of lower other layers, specifically, it is desirable to which the refractive index of ducting layer can allow the light of light source incidence in ducting layer
It is middle to be totally reflected, while second substrate can be used as assistant waveguide, to ensure light to the coupling efficiency of ducting layer.Separately
Outward, in order to further improve the utilization rate and display effect of light, it is desirable to which the higher the better for the light transmission rate of ducting layer, thus, it is possible to
Light loss is reduced, brightness is improved, and then improves display effect.Embodiments in accordance with the present invention, form the concrete material of the ducting layer
Material is not particularly limited, if having suitable refractive index, can for this area is any can be used as the material of ducting layer.At this
In some embodiments of invention, forming the material of the ducting layer is included in silicon nitride, Lithium metaniobate, titanium dioxide and glass extremely
Few one kind.Thus, with good coupling efficiency, display effect is preferable.Embodiments in accordance with the present invention, form the side of ducting layer
Method is thus, technical maturity, easy to operate it is not also specifically limited, including but not limited to chemical vapour deposition technique etc..
Embodiments in accordance with the present invention, the concrete species of light source is not particularly limited, can for this area it is any of,
Can be used for the light source of display device.In the display device of the present invention, in order to realize preferable display effect, side-edge type backlight
Collimation is required, to increase coupling efficiency, interference of the spurious rays to showing is reduced, and then improves display effect.
Embodiments in accordance with the present invention, with reference to Fig. 7, the grating layer 30 can include multiple sub-gratings structures 32, and institute
The screen periods for stating multiple sub-gratings structures 32 are incomplete same.For example, can allow multiple sub-gratings structures equivalent to
Multiple sub-pixels in existing display device, have suitable screen periods so as to from waveguide coupling by adjusting sub-gratings structure
Close out the light of specific wavelength.Thus, it is possible to realize light splitting by diffraction principle, it is not necessary to be capable of achieving colour using colored film
Show, and the light transmittance of display device is greatly improved.
Embodiments in accordance with the present invention, as long as forming the material of grating layer it is not also specifically limited, refractive index meets requirement
.In some embodiments of the invention, the material for forming the grating layer is transparent organic material, such as transparent polymer material
Material etc..Thus, raw material sources are extensively easy to get, and cost is relatively low, and performance is preferable.Embodiments in accordance with the present invention, form grating layer
Method be not particularly limited, it may for example comprise but be not limited to nano impression etc..Thus, it is simple to operate, it is convenient, it is easy to control.
In another aspect of this invention, the invention provides a kind of display device.Embodiments in accordance with the present invention, the display
Equipment includes foregoing display device.The display device need not be high using polaroid and colored filter, light transmission rate,
Show suitable for Transparence Display and augmented reality, simultaneously because need not be orientated using blue phase liquid crystal, preparation process is simple, operate
It is convenient.It will be understood by those skilled in the art that the display device has all feature and advantage of foregoing display device,
This is no longer going to repeat them.
Embodiments in accordance with the present invention, the concrete species of the display device is not particularly limited, can be for any with aobvious
The equipment for showing function, such as including but not limited to mobile phone, panel computer, television set, computer, game machine, household electrical appliance and work
Industry equipment etc..
In addition, it will be understood by those skilled in the art that in addition to foregoing display device, display described herein
Other necessary parts and structure that equipment also has with conventional equipment, such as mobile phone can also have shell, CPU, photograph mould
Group, touch screen, fingerprint recognition module, send part and structure that sound system etc. conventional cell phone possesses.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicates or imply that the device or element of indication must
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or it is integral；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to concrete feelings
Condition understands above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of display device, it is characterised in that include：
First substrate；
Blue phase liquid crystal layer, the blue phase liquid crystal layer is arranged at the side of the first substrate,
Ducting layer, the ducting layer is arranged at side of the blue phase liquid crystal layer away from the first substrate；
Grating layer, the grating layer is arranged at the ducting layer near the side of the blue phase liquid crystal layer；
First electrode, the first electrode is arranged at the first substrate or the ducting layer near the one of the blue phase liquid crystal layer
Side；
Second electrode, the second electrode is arranged at the first substrate or the ducting layer near the one of the blue phase liquid crystal layer
Side；
Light source, the light source is arranged at one end of the ducting layer,
Light shield layer, the light shield layer is arranged at the other end of the ducting layer,
Wherein, the refractive index of the ducting layer is more than the refractive index of the blue phase liquid crystal layer and the grating layer, and the blue phase
The refractive index of liquid crystal layer original state is identical with the refractive index of the grating layer.
2. display device according to claim 1, it is characterised in that further include：
Second substrate, the second substrate is arranged at side of the ducting layer away from the blue phase liquid crystal layer.
3. display device according to claim 1 and 2, it is characterised in that the first electrode and the second electrode are equal
It is arranged at the first substrate to be provided between the side of the blue phase liquid crystal layer, and the first electrode and second electrode
Insulating barrier.
4. display device according to claim 1 and 2, it is characterised in that the first electrode is arranged at first base
Plate is arranged between the ducting layer and the grating layer near the side of the blue phase liquid crystal layer, the second electrode.
5. display device according to claim 1 and 2, it is characterised in that the first electrode is arranged at first base
Near the side of the blue phase liquid crystal layer, the second electrode is arranged at the grating layer near the one of the blue phase liquid crystal layer to plate
Side.
6. display device according to claim 1 and 2, it is characterised in that the first electrode is arranged at the grating layer
Near the side of the blue phase liquid crystal layer, the second electrode is arranged between the ducting layer and the grating layer.
7. display device according to claim 1 and 2, it is characterised in that in the first electrode and second electrode extremely
Few one includes multiple spaced strip electrodes.
8. display device according to claim 1 and 2, it is characterised in that the grating layer includes multiple sub-gratings structures,
And the screen periods of the plurality of sub-gratings structure are incomplete same.
9. display device according to claim 1 and 2, it is characterised in that forming the material of the ducting layer includes nitridation
At least one in silicon, Lithium metaniobate, titanium dioxide and glass,
The material for forming the grating layer is transparent organic material.
10. a kind of display device, it is characterised in that including the display device any one of claim 1-9.
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| CN201710056336.3A CN106647004A (en) | 2017-01-25 | 2017-01-25 | Display member and display device containing same |
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