CN110441936A - Filter, filtering device, driving method of filter and preparation method of driving method - Google Patents
Filter, filtering device, driving method of filter and preparation method of driving method Download PDFInfo
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- CN110441936A CN110441936A CN201910750962.1A CN201910750962A CN110441936A CN 110441936 A CN110441936 A CN 110441936A CN 201910750962 A CN201910750962 A CN 201910750962A CN 110441936 A CN110441936 A CN 110441936A
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- electrode
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- substrate
- cabling
- alignment layers
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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
- G02F1/0102—Constructional details, not otherwise provided for in this subclass
-
- 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
- G02F1/1313—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 specially adapted for a particular application
-
- 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
Abstract
The invention discloses a filter, a filtering device, a driving method of the filter and a preparation method of the filter. When broadband light is incident on the liquid crystal material, the liquid crystal material can reflect the incident light with the characteristic wavelength corresponding to the changed effective refractive index, the incident light with other wavelengths is continuously transmitted through the liquid crystal material, the incident light with the characteristic wavelength corresponding to the changed effective refractive index is further selected, and the filter can further realize the function of selecting the light with the specific wavelength.
Description
Technical field
The present invention relates to optical technical field, espespecially a kind of filter, filter, the driving method of filter and its system
Preparation Method.
Background technique
Filter is the Primary Component in optic communication.In optical communication system filter for the light wave of specified wavelength into
Row selection filters out noise, realizes gain balance etc..
Summary of the invention
The embodiment of the invention provides a kind of filters, filter, the driving method of filter and preparation method thereof, use
The light wave of specific wavelength is selected in realizing.
Therefore, the embodiment of the invention provides a kind of filter, the filter include: the first substrate that is oppositely arranged with
The second substrate, and electrode layer and liquid crystal material between the first substrate and the second substrate；
The electrode layer includes: plurality of first electrodes and the plurality of second electrodes；Wherein, the first electrode and described second
Electrode replaces and is intervally arranged；And liquid crystal material is packaged between the adjacent first electrode and the second electrode.
Optionally, in embodiments of the present invention, the filter further include: the first both alignment layers and the second both alignment layers, it is described
For first both alignment layers between the first substrate and the electrode layer, second both alignment layers are located at the second substrate and institute
It states between electrode layer.
Optionally, in embodiments of the present invention, the filter further includes the first cabling；Multiple first electrodes and institute
State the electrical connection of the first cabling.
Optionally, in the embodiment of the present invention, first cabling and multiple first electrode same layer same materials are arranged.
Optionally, in the embodiment of the present invention, the filter further include: the first routing layer, first routing layer include
A plurality of second cabling；With first electrode described at least one for a first electrode group；
For first routing layer between first both alignment layers and the first substrate, second cabling is logical
Cross the first via hole electrical connection corresponding with all first electrodes in a first electrode group through first both alignment layers；
Alternatively,
For first routing layer between second both alignment layers and the second substrate, second cabling is logical
Cross the second via hole electrical connection corresponding with all first electrodes in a first electrode group through second both alignment layers.
Optionally, in the embodiment of the present invention, the filter further includes third cabling；Multiple second electrodes with it is described
The electrical connection of third cabling.
Optionally, in the embodiment of the present invention, the third cabling and multiple second electrode same layer same materials are arranged.
Optionally, in the embodiment of the present invention, the filter further include: the second routing layer, second routing layer include
A plurality of 4th cabling；With second electrode described at least one for a second electrode group；
For second routing layer between first both alignment layers and the first substrate, the 4th cabling is logical
Cross the first via hole electrical connection corresponding with all second electrodes in a second electrode group through first both alignment layers；
Alternatively,
For second routing layer between second both alignment layers and the second substrate, the 4th cabling is logical
Cross the second via hole electrical connection corresponding with all second electrodes in a second electrode group through second both alignment layers.
Correspondingly, the embodiment of the invention also provides a kind of filter provided in an embodiment of the present invention, the filtering dresses
It sets including above-mentioned filter.
Correspondingly, the embodiment of the invention also provides a kind of driving method of filter provided in an embodiment of the present invention, institutes
The driving method for stating filter includes:
First voltage is loaded to the first electrode, second voltage is loaded to the second electrode, to control the liquid crystal
The effective refractive index of material changes, and filters out the light of characteristic wavelength corresponding with the effective refractive index after variation；Wherein, described
First voltage is not equal to the second voltage.
Correspondingly, the embodiment of the invention also provides a kind of production method of filter provided in an embodiment of the present invention, institutes
The preparation method for stating filter includes:
The electrode layer is formed on the first substrate；Wherein, the electrode layer include the multiple first electrode and
The multiple second electrode；
The liquid crystal material is formed between the adjacent first electrode and the second electrode；
The electrode layer away from the first substrate side formed the second substrate, with by the second substrate with it is described
First substrate encapsulate to box.
Above-mentioned filter provided in an embodiment of the present invention, filter, driving method of filter and preparation method thereof, should
Filter includes the first substrate being oppositely arranged and the second substrate and the electrode layer between first substrate and the second substrate
And liquid crystal material, wherein electrode layer includes first electrode and second electrode, and is sealed between adjacent first electrode and second electrode
Equipped with liquid crystal material.First voltage is loaded to first electrode, after loading second voltage to second electrode, and first voltage differs
In second voltage, voltage difference will form between first electrode and second electrode, the liquid crystal molecule in liquid crystal material is in the voltage
It deflects under the action of difference, and then the effective refractive index of liquid crystal material is caused to change.When broadband light is incident on liquid crystal
When on material, liquid crystal material can reflect the light of the corresponding characteristic wavelength of effective refractive index after variation, other wavelength
Light continue to transmit by liquid crystal material, and then selected the light of characteristic wavelength corresponding with the effective refractive index after variation,
Also further such that the effect for carrying out selection to special wavelength light may be implemented in the filter.
Detailed description of the invention
Fig. 1 is a kind of overlooking structure diagram of filter in the embodiment of the present application；
Fig. 2 is schematic cross-sectional view of the filter shown in FIG. 1 on the direction AA '；
Fig. 3 is schematic cross-sectional view of the filter shown in FIG. 1 on the direction AA '；
Fig. 4 is a kind of filter operation principle schematic diagram in the embodiment of the present application；
Fig. 5 is another filter operation principle schematic diagram in the embodiment of the present application；
Fig. 6 is the overlooking structure diagram of another filter in the embodiment of the present application；
Fig. 7 is schematic cross-sectional view of the filter shown in fig. 6 on the direction AA '；
Fig. 8 is the overlooking structure diagram of another filter in the embodiment of the present application；
Fig. 9 is schematic cross-sectional view of the filter shown in Fig. 8 on the direction AA '；
Figure 10 is another filter schematic cross-sectional view in the embodiment of the present application；
Figure 11 is a kind of flow chart of the preparation method of filter in the embodiment of the present application；
Figure 12 a- Figure 12 g is a kind of schematic diagram of the preparation method of filter in the embodiment of the present application.
Specific embodiment
In order to make the purpose of the present invention, the technical scheme and advantages are more clear, with reference to the accompanying drawing, to the embodiment of the present invention
Filter, filter and its driving method specific embodiment of offer are described in detail.It should be appreciated that being retouched below
The preferred embodiment stated is only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.And in the absence of conflict,
The features in the embodiments and the embodiments of the present application can be combined with each other.It should be noted that each layer film thickness in attached drawing
Do not reflect actual proportions with shape, purpose is schematically illustrate the content of present invention.And same or similar label from beginning to end
Indicate same or similar element or element with the same or similar functions.
In view of this, the embodiment of the invention provides a kind of filter, which can wrap in conjunction with shown in Fig. 1 and Fig. 2
It includes: the first substrate 101 and the second substrate 102 being oppositely arranged, and between first substrate and 101 the second substrates 102
Electrode layer 103 and liquid crystal material 104；Electrode layer 103 includes: multiple first electrodes 1031 and multiple second electrodes 1032；Wherein,
First electrode 1031 replaces and is intervally arranged with second electrode 1032；And adjacent first electrode 1031 and second electrode 1032 it
Between be packaged with liquid crystal material 104.
Filter provided in an embodiment of the present invention, including the first substrate and the second substrate that are oppositely arranged and positioned at first
Electrode layer and liquid crystal material between substrate and the second substrate, wherein electrode layer includes first electrode and second electrode, and adjacent
First electrode and second electrode between be packaged with liquid crystal material.First voltage is loaded to first electrode, second electrode is loaded
After second voltage, and first voltage is not equal to second voltage, will form voltage difference, liquid between first electrode and second electrode
Liquid crystal molecule in brilliant material deflects under the action of the voltage difference, and then the effective refractive index of liquid crystal material is caused to occur
Variation.When broadband light is incident on liquid crystal material, liquid crystal material can be by the corresponding feature of effective refractive index after variation
The incident light of wavelength is reflected, and the incident light of other wavelength continues to transmit by liquid crystal material, and then has been selected and variation
The incident light of the corresponding characteristic wavelength of effective refractive index afterwards, also further such that the filter may be implemented to special wavelength light
Carry out the effect of selection.
Embodiment one
Optionally, in filter provided in an embodiment of the present invention, as shown in Figures 1 and 3, filter further includes first matching
To layer 105 and the second both alignment layers 106, the first both alignment layers 105 are between first substrate 101 and electrode layer 103, the second both alignment layers
106 between the second substrate 102 and electrode layer 103.Wherein, the material of the first both alignment layers 105 and the second both alignment layers 106 can be with
Including polyimides.
Optionally, in filter provided in an embodiment of the present invention, it is illustrated in figure 3 the plan structure signal of filter
Figure, filter further includes the first cabling 107, and multiple first electrodes 1031 are electrically connected with the first cabling 107.And first cabling 107
It is arranged with multiple 1031 same layers of first electrode with material.The process for not needing to increase additional the first cabling of preparation 107 in this way, only
It needs that each first electrode 1031, each second electrode first electrode 1032 and the first cabling can be formed by a patterning processes
107 figure can simplify preparation process, save production cost, improve production efficiency.
Wherein, the material of first electrode 1031 and the first cabling 107 may include tin indium oxide, can also include that other are non-
Conductive metal material, the invention is not limited in this regard.
Optionally, in filter provided in an embodiment of the present invention, as shown in Figure 1, first electrode 1031 is on the direction AA '
Width on the direction AA ' of width and second electrode 1032 it is roughly the same.It should be noted that in actual process, due to
The limitation or other factors of process conditions, identical in above-mentioned each feature can not be identical, might have some deviations, because
As long as the identical relationship between this above-mentioned each feature substantially meets above-mentioned condition, all belong to the scope of protection of the present invention.Example
Such as, it is above-mentioned it is identical can be it is permitted identical within allowable range of error.
Optionally, in filter provided in an embodiment of the present invention, as shown in Figure 1, filter further includes third cabling
109；Multiple second electrodes 1032 are electrically connected with third cabling 109.Third cabling 109 and the same material of multiple 1032 same layers of second electrode
Matter setting.The process of the additional preparation third cabling 109 of increase is not needed in this way, it is only necessary to can shape by a patterning processes
At the figure of each first electrode 1031, each second electrode first electrode 1032 and third cabling 109, preparation process can be simplified,
Production cost is saved, production efficiency is improved.
Optionally, in filter provided in an embodiment of the present invention, as shown in Figures 1 and 3, filter further include: be located at
Sealant 113 between first substrate 101 and the second substrate 102, sealant 113 are arranged around 103 periphery of electrode layer.
By taking the structure of filter shown in Fig. 3 as an example, the specific working principle of the filter is:
As shown in connection with fig. 4, when the first electrode of filter 1031 and second electrode 1032 are not loaded with voltage, when a beamwidth
When wave band incident light transmission to the filter, which can generate the reflected light that characteristic wavelength is λ, i.e. the filter is by the width
The light of a length of λ of wave band incident light medium wave is reflected, and the light of other wavelength both passes through liquid crystal material in the broadband incident light
Continue to transmit.Wherein, the characteristic wavelength λ for the light which can reflect meets following formula:
λ=2neffL；
Wherein, λ represents the characteristic wavelength of the incident light of the filter reflection, neffRepresent liquid crystal material in the filter
Effective refractive index, L represent width L ' of the gap between adjacent first electrode 1031 and second electrode 1032 on the direction AA ' with
Width the sum of of the first electrode 1031 in the direction AA '.
As shown in figure 5, when the first electrode 1031 of the filter is loaded into first voltage, second electrode 1032 is loaded into the second electricity
After pressure, and first voltage is not equal to second voltage, voltage difference is generated between adjacent first electrode and second electrode, the voltage official post
It obtains the liquid crystal molecule in the filter in liquid crystal material and certain angle, θ deflection occurs, so that effective folding of liquid crystal material
The rate of penetrating changes, then the effective refractive index n' after liquid crystal material variationeffMeet:
Wherein, n'effEffective refractive index after representing liquid crystal material variation, n0Represent the refractive index of ordinary light, neIt represents different
The refractive index of ordinary light, θ represent deflection angle of the liquid crystal molecule relative to optical axis BB '.
After the effective refractive index of liquid crystal material changes, the characteristic wavelength of the light of the corresponding reflection of filter can become
Change.Therefore, in a branch of broadband incident light transmission to the filter, by the variable quantity of the characteristic wavelength of the light of filter reflection
Δ λ meets:
The Δ of Δ λ=2 neffL；
Wherein, Δ λ represents the characteristic wavelength variable quantity of the light of filter reflection, Δ neffRepresent effective folding of liquid crystal material
The variable quantity of rate is penetrated, L represents width L ' of the gap between adjacent first electrode 1031 and second electrode 1032 on the direction AA '
With width the sum of of the first electrode 1031 on the direction AA '.
To sum up, when the first electrode of the filter is loaded into first voltage, after second electrode is loaded into second voltage, in a beamwidth
Wave band incident light transmission is to the filter, and the characteristic wavelength of the light of liquid crystal material reflection is λ ' in the filter, i.e. filter can
The incident light for being λ ' with reflection wavelength.So, when the first electrode of the filter is loaded into tertiary voltage, second electrode is loaded into second
After voltage, then filtered in a branch of broadband incident light transmission to the filter since the effective refractive index of liquid crystal material changes
The characteristic wavelength for the light that liquid crystal material reflects in wave device can change as λ '+Δ λ, i.e., the filter can be with reflection wavelength λ '+
The incident light of Δ λ.
Working principle based on filter, when it is implemented, in embodiments of the present invention, in conjunction with shown in Fig. 1 and Fig. 3, when
When loading first voltage on the first cabling 107, it can be loaded in multiple first electrodes 1031 for being connect with the first cabling 107
Identical first voltage.Second voltage is loaded on third cabling 109, in the multiple second electrodes 1032 connecting with third cabling
Identical second voltage can be loaded.One first electrode 1031 second electrode 1032 adjacent with the first electrode 1031
Between form voltage difference, the voltage difference formed between other first electrodes 1031 second electrode adjacent thereto 1032 is identical,
And then it can control the liquid crystal molecule in liquid crystal material and deflect identical angle.When liquid crystal molecule deflects identical angle, filtering
Effective refractive index in device after liquid crystal material variation is same value.At this point, when a branch of broadband incident light transmission to the filter,
The filter can reflect the incident light of a characteristic wavelength corresponding with the effective refractive index after variation, and then will be after variation
The incident light of the corresponding characteristic wavelength of effective refractive index chooses.
Embodiment two
The structural schematic diagram of the corresponding filter of the present embodiment is as shown in Figures 6 and 7, for the part in embodiment one
Embodiment is deformed.In place of the difference for only illustrating the present embodiment and embodiment one below, something in common is not made herein
It repeats.
Optionally, in filter provided in an embodiment of the present invention, in conjunction with shown in Fig. 6 and Fig. 7, filter further includes first
Routing layer 108, the first routing layer 108 includes a plurality of second cabling 1081, at least one first electrode 1031 for one first
Electrode group.
Optionally, in filter provided in an embodiment of the present invention, match as shown in fig. 7, the first routing layer 108 is located at first
To between layer 105 and first substrate 101.One the second cabling 1081 passes through the first via hole 1082 through the first both alignment layers 105
Electrical connection corresponding with all first electrodes 1031 in a first electrode group.Can be loaded on each second cabling 1081
One voltage makes that first voltage can be loaded in the first electrode 1031 of the corresponding electrical connection of each second cabling 1081, when the second electricity
When loading second voltage on pole 1032, between each first electrode 1031 and the adjacent second electrode 1032 of the first electrode 1031
Form voltage difference.
Optionally, in filter provided in an embodiment of the present invention, when a first electrode 1031 is a first electrode
When group, second cabling 1081 passes through the first via hole 1082 and the corresponding first electrode 1031 through the first both alignment layers 105
Electrical connection.The correspondence first voltage that can be loaded on each second cabling 1081, and correspond to and add on each second cabling 1081
The first voltage of load is different, then being loaded in the first electrode 1031 of electrical connection corresponding with each second cabling 1081 each
Different first voltage, after loading second voltage in second electrode 1032, each first electrode 1031 and the first electrode
Voltage difference is formed between 1031 adjacent second electrodes 1032.When the correspondence first voltage loaded on each second cabling 1081 is each
When not identical, then forming voltage between a first electrode 1031 and the adjacent second electrode 1032 of the first electrode 1031
Difference, the voltage difference formed between second electrode 1032 adjacent thereto with other first electrodes 1031 are different.I.e. each
It is also not identical that voltage difference is formed between one electrode 1031 second electrode 1032 adjacent thereto.So that each first electrode
Liquid crystal molecule deflection angle between 1031 second electrodes 1032 adjacent thereto is also different.According to the work of the filter
Principle is it is found that liquid crystal between a first electrode 1031 and the adjacent second electrode 1032 of the first electrode 1031 in the filter
Effective refractive index after changes in material, between the second electrode 1032 adjacent thereto with other first electrodes 1031 after changes in material
Effective refractive index it is different.Since different effective refractive indexs corresponds to the reflected light of different characteristic wavelength, when a beamwidth wave
Section incident light transmission is to the filter, between a first electrode 1031 and the adjacent second electrode 1032 of the first electrode 1031
The characteristic wavelength of the incident light of liquid crystal material reflection, liquid between the second electrode 1032 adjacent thereto with other first electrodes 1031
The characteristic wavelength of the incident light of brilliant material reflection is different, and therefore, which can be to the incident light of multiple characteristic wavelengths
It is reflected, and then the incident light that may be implemented to select multiple characteristic wavelengths in a branch of broadband incident light is selected.
Illustratively, the first voltage of corresponding load on each second cabling can also be made identical.Present embodiment with it is upper
It states process in embodiment one and principle is similar, repeating place, details are not described herein.
Illustratively, the first voltage of corresponding load can also be made on the second cabling of part different, rest part the
The first voltage of corresponding load is identical on two cablings, and process and principle are referred to above-described embodiment, repeats place herein not
It repeats again.
Embodiment three
The structural schematic diagram of the corresponding filter of the present embodiment is as shown in Fig. 8 and Fig. 9, for the part in embodiment two
Embodiment is deformed.In place of the difference for only illustrating the present embodiment and embodiment two below, something in common is not made herein
It repeats.
Optionally, in filter provided in an embodiment of the present invention, in conjunction with as shown in Figure 8 and Figure 9, when two first electrodes
1031 when being a first electrode group, second cabling 1081 by the first via hole 1082 through the first both alignment layers 105 with
The corresponding electrical connection of all first electrodes 1031 in one first electrode group.First can be loaded on each second cabling 1081
Voltage can load first voltage in the first electrode 1031 of electrical connection corresponding with each second cabling 1081, work as second electrode
When loading second voltage on 1032, shape between each first electrode 1031 and the adjacent second electrode 1032 of the first electrode 1031
At voltage difference.
In conjunction with shown in Fig. 8 and Fig. 9, the mode of on-load voltage may include: on each second cabling 1081
Illustratively, the first voltage of corresponding load on each second cabling 1081 can be made identical.Present embodiment with
Process and principle in above-described embodiment one is similar, and repeating place, details are not described herein.
Illustratively, the first voltage of corresponding load on each second cabling 1081 can also be made different.This implementation
Mode in above-described embodiment two process and principle it is similar, repeat place details are not described herein.
Illustratively, the first voltage of corresponding load on the second cabling of part 1081 can also be made different, remaining part
Divide the first voltage of corresponding load on the second cabling 1081 identical.Its process and principle are referred to above-described embodiment one and implement
Example two, repeating place, details are not described herein.
Certainly, a first electrode group also may include 3,4 or more first electrodes 1031, this can be according to actually answering
Determination is designed with environment, is not limited thereto.
Example IV
The structural schematic diagram of the corresponding filter of the present embodiment is as shown in Figure 10, implements for the part in embodiment three
Mode is deformed.In place of the difference for only illustrating the present embodiment and embodiment three below, therefore not to repeat here for something in common.
Optionally, in filter provided in an embodiment of the present invention, as shown in Figure 10, the first routing layer 108 is located at second
Between both alignment layers 106 and the second substrate 102, second cabling 1081 by through the second both alignment layers 106 the second via hole with
The corresponding electrical connection of all first electrodes in one first electrode group.When the first routing layer 108 is located at the second both alignment layers 106 and
Between two substrates 102, the reality of embodiments thereof and the first routing layer 108 between the first both alignment layers 105 and first substrate 101
It is similar to apply mode, repeating place, details are not described herein.
Optionally, in filter provided in an embodiment of the present invention, filter further includes the second routing layer, the second routing layer
Including a plurality of 4th cabling；With at least one second electrode for a second electrode group；
Second routing layer is between the first both alignment layers and first substrate, and the 4th cabling is by running through the first both alignment layers
The first via hole it is corresponding with all second electrodes in a second electrode group electrical connection；Alternatively, the second routing layer is located at second
Between both alignment layers and the second substrate, the 4th cabling passes through the second via hole and a second electrode group through the second both alignment layers
In the corresponding electrical connection of all second electrodes.
In the specific implementation, in embodiments of the present invention, the second routing layer of filter and the principle of the first routing layer and
Implementation result is similar, and repeating place, details are not described herein.
When it is implemented, in embodiments of the present invention, additionally providing a kind of filter, which includes above-mentioned filter
Wave device.Before the principle that the filter solves the problems, such as is similar to aforesaid filters, therefore the implementation of the filter may refer to
The implementation of filter is stated, repeating place, details are not described herein.
Based on the same inventive concept, the embodiment of the invention also provides a kind of above-mentioned filters provided in an embodiment of the present invention
Driving method, when specific implementation may include:
First voltage is loaded to first electrode, second voltage is loaded to second electrode, to control effective folding of liquid crystal material
The rate of penetrating changes, and filters out the light of characteristic wavelength corresponding with the effective refractive index after variation；Wherein, first voltage is not equal to the
Two voltages；
The driving method of above-mentioned filter provided in an embodiment of the present invention, this method pass through to the first electricity of first electrode load
Pressure, after loading second voltage to second electrode, and first voltage is not equal to second voltage, first electrode and second electrode it
Between will form voltage difference, the liquid crystal molecule in liquid crystal material deflects under the action of the voltage difference, and then leads to liquid crystal material
The effective refractive index of material changes.When broadband light is incident on liquid crystal material, liquid crystal material can be by having after variation
The light of the corresponding characteristic wavelength of effect refractive index is reflected, and the light of other wavelength continues to transmit by liquid crystal material, and then is selected
The light of characteristic wavelength corresponding with the effective refractive index after variation is gone out, also further such that the filter may be implemented to specific
Wavelength light carries out the effect of selection.
The embodiment of the invention also provides a kind of preparation method of above-mentioned filter provided in an embodiment of the present invention, such as Figure 11
Shown, when specific implementation may include step 111 to step 113.
Step 111, electrode layer is formed on the first substrate；Wherein, electrode layer includes multiple first electrodes and multiple second
Electrode；
Step 112, liquid crystal material is formed between adjacent first electrode and second electrode；
Step 113, the second substrate is formed away from first substrate side in electrode layer, to pass through the second substrate and first substrate
Box is encapsulated.
The preparation method of above-mentioned filter provided in an embodiment of the present invention, this method by forming electrode on the first substrate
Layer；Wherein, electrode layer includes plurality of first electrodes and the plurality of second electrodes；It is formed between adjacent first electrode and second electrode
Liquid crystal material；The second substrate is formed away from first substrate side in electrode layer, to carry out pair by the second substrate and first substrate
Box encapsulation.The filter of this method preparation can be realized the function that selection is carried out to specific wavelength incident light.
Illustrate preparation method by taking Fig. 3 and filter shown in Fig. 7 as an example below.
Embodiment five
By taking filter shown in Fig. 3 as an example, if the preparation method of Figure 12 a- Figure 12 g filter may include following step
It is rapid:
(1) as figure 12 a shows, polyimide layer 110 is formed on first substrate 101, wherein first substrate 101 can be
Glass substrate.
(2) as shown in Figure 12b, layer of transparent conductive material is deposited on polyimide layer 110, forms transparency conducting layer
111, which can be tin indium oxide.
(3) as shown in fig. 12 c, which is performed etching, forms electrode layer 103 and the first cabling 107
With third cabling 109；Wherein, electrode layer 103 includes: multiple first electrodes 1031 and multiple second electrodes 1032.
(4) as shown in figure 12d, polyimide layer 110 is irradiated using ultraviolet light 112, to polyimide layer
110 carry out light orientation, form the first both alignment layers 105.
(5) as shown in Figure 12 e, the dispenser method material 104 between adjacent first electrode 1031 and second electrode 1032.
(6) as shown in Figure 12 f and Figure 12 g, polyimide layer 114 is formed in the second substrate 102, and make sealant 113,
The sealant 113 is around the edge one week of the second substrate 102, and positioned at the periphery of electrode layer 103.
In the specific implementation, in embodiments of the present invention, the sequence of step (1)~(5) and step (6) can be according to reality
Fabrication processing is interchangeable or carries out simultaneously.
(7) as shown in figure 3, the second substrate 102 with sealant 113 encapsulate box with first substrate 101, shape
At filter shown in Fig. 3.
Embodiment six
By taking filter shown in Fig. 7 as an example, the production of the filter may include step (1)-(7) in embodiment five:
Wherein, the step identical with embodiment five, therefore not to repeat here.
Preparing filter shown in Fig. 7 can also include: to be initially formed first on first substrate 101 before step (1)
Routing layer 108.First routing layer 108 includes a plurality of second cabling 1081.
In step (1), polyimide layer is formed on the first substrate 101 for being formed with the first routing layer 108, and to polyamides
Imine layer is patterned, to form the first via hole 1082 for running through polyimide layer.
In step (3), which is performed etching, forms electrode layer 103 and third cabling 109；Electrode layer
103 include: multiple first electrodes 1031 and multiple second electrodes 1032.Wherein, in first electrode 1031 and the first routing layer 108
Corresponding second cabling 1081 is electrically connected by the first via hole 1082.
Above-mentioned filter provided in an embodiment of the present invention, filter, driving method of filter and preparation method thereof, should
Filter includes the first substrate being oppositely arranged and the second substrate and the electrode layer between first substrate and the second substrate
And liquid crystal material, wherein electrode layer includes first electrode and second electrode, and is sealed between adjacent first electrode and second electrode
Equipped with liquid crystal material.First voltage is loaded to first electrode, after loading second voltage to second electrode, and first voltage differs
In second voltage, voltage difference will form between first electrode and second electrode, the liquid crystal molecule in liquid crystal material is in the voltage
It deflects under the action of difference, and then the effective refractive index of liquid crystal material is caused to change.When broadband light is incident on liquid crystal
When on material, liquid crystal material can reflect the light of the corresponding characteristic wavelength of effective refractive index after variation, other wavelength
Light continue to transmit by liquid crystal material, and then selected the light of characteristic wavelength corresponding with the effective refractive index after variation,
Also further such that the effect for carrying out selection to special wavelength light may be implemented in the filter.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (11)
1. a kind of filter, which is characterized in that the filter includes: the first substrate being oppositely arranged and the second substrate, and
Electrode layer and liquid crystal material between the first substrate and the second substrate；
The electrode layer includes: plurality of first electrodes and the plurality of second electrodes；Wherein, the first electrode and the second electrode
Alternately and it is intervally arranged；And liquid crystal material is packaged between the adjacent first electrode and the second electrode.
2. filter according to claim 1, which is characterized in that the filter further include: the first both alignment layers and second
Both alignment layers, between the first substrate and the electrode layer, second both alignment layers are located at described first both alignment layers
Between the second substrate and the electrode layer.
3. filter according to claim 2, which is characterized in that the filter further includes the first cabling；It is multiple described
First electrode is electrically connected with first cabling.
4. filter according to claim 3, which is characterized in that first cabling and multiple first electrode same layers
Same material setting.
5. filter according to claim 2, which is characterized in that the filter further include: the first routing layer, described
One routing layer includes a plurality of second cabling；With first electrode described at least one for a first electrode group；
First routing layer is between first both alignment layers and the first substrate, and second cabling is by passing through
Wear the first via hole electrical connection corresponding with all first electrodes in a first electrode group of first both alignment layers；Or
Person,
First routing layer is between second both alignment layers and the second substrate, and second cabling is by passing through
Wear the second via hole electrical connection corresponding with all first electrodes in a first electrode group of second both alignment layers.
6. filter according to claim 1-5, which is characterized in that the filter further includes third cabling；
Multiple second electrodes are electrically connected with the third cabling.
7. filter according to claim 6, which is characterized in that the third cabling and multiple second electrode same layers
Same material setting.
8. filter according to claim 1-5, which is characterized in that the filter further include: the second cabling
Layer, second routing layer includes a plurality of 4th cabling；With second electrode described at least one for a second electrode group；
Second routing layer is between first both alignment layers and the first substrate, and the 4th cabling is by passing through
Wear the first via hole electrical connection corresponding with all second electrodes in a second electrode group of first both alignment layers；Or
Person,
Second routing layer is between second both alignment layers and the second substrate, and the 4th cabling is by passing through
Wear the second via hole electrical connection corresponding with all second electrodes in a second electrode group of second both alignment layers.
9. a kind of filter, which is characterized in that the filter includes filtering of any of claims 1-8
Device.
10. a kind of driving method of filter according to claim 1 to 8, which is characterized in that the filtering
The driving method of device includes:
First voltage is loaded to the first electrode, second voltage is loaded to the second electrode, to control the liquid crystal material
Effective refractive index change, filter out and the light of the corresponding characteristic wavelength of effective refractive index after variation；Wherein, described first
Voltage is not equal to the second voltage.
11. a kind of preparation method of filter according to claim 1 to 8, which is characterized in that the filtering
The preparation method of device includes:
The electrode layer is formed on the first substrate；Wherein, the electrode layer includes the multiple first electrode and described
Multiple second electrodes；
The liquid crystal material is formed between the adjacent first electrode and the second electrode；
The second substrate is formed away from the first substrate side in the electrode layer, to pass through the second substrate and described first
Substrate encapsulate to box.
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| CN201910750962.1A CN110441936B (en) | 2019-08-14 | 2019-08-14 | Filter, filtering device, driving method of filter and preparation method of driving method |
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Cited By (1)
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| DE102022114792B3 (en) | 2022-06-13 | 2023-11-02 | Sick Ag | LIGHT TRANSMITTER ARRANGEMENT AND OPTOELECTRONIC SENSOR ARRANGEMENT |
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