CN105929576A - Dimming device and control method thereof as well as vehicle-mounted device and control method thereof - Google Patents
Dimming device and control method thereof as well as vehicle-mounted device and control method thereof Download PDFInfo
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- CN105929576A CN105929576A CN201610532041.4A CN201610532041A CN105929576A CN 105929576 A CN105929576 A CN 105929576A CN 201610532041 A CN201610532041 A CN 201610532041A CN 105929576 A CN105929576 A CN 105929576A
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- electrode
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- light modulation
- modulation film
- light transmittance
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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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
- B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
-
- 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
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
-
- 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
- G02F1/15—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 an electrochromic effect
- G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Liquid Crystal (AREA)
Abstract
The embodiments of the invention relate to the technical field of display, and provide a dimming device and a control method thereof as well as a vehicle-mounted device and a control method thereof, capable of reducing the influence on user perspective while keeping out the outside light. The dimming device comprises a dimming film; the dimming film comprises a first electrode, a second electrode and a light transmittance adjustment layer, wherein an electric field formed by the first electrode and the second electrode is applied to the light transmittance adjustment layer so as to adjust the light transmittance of the dimming film. The dimming device also comprises a processing module connected with the dimming film; the processing module is used for acquiring a dimming signal, and respectively adjusting the voltages applied to the first electrode and the second electrode according to the dimming signal.
Description
Technical field
The present invention relates to light regulating technology field, particularly relate to a kind of light modulating device and controlling party thereof
Method, mobile unit and control method thereof.
Background technology
Generally driver is during driving, when stronger sunlight from windshield or
When the window of driver side is incident to driver's cabin, the eyes of driver can be caused stimulation, from
And road ahead cannot be seen clearly.In order to solve the problems referred to above, it is provided with the most on the windshield
The sunshading board that can fold, driver can use sunshading board to sun needs when
Light blocks.
But, in prior art, so that sunlight can be blocked by sunshading board, therefore
Tional sun visor design is opaque.So, sunshading board while sunlight is blocked,
Also can block the sight line of driver, so that driver visual angle diminishes, and driver is beating
Open or close and can take sb's mind off sth while closing sunshading board, reduce drive safety.
Summary of the invention
Embodiments of the invention provide a kind of light modulating device and control method thereof, mobile unit and
Control method, it is possible to while light blocks to external world, reduces the impact on user perspective.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
The one side of the embodiment of the present invention, it is provided that a kind of light modulating device, including light modulation film, described
Light modulation film includes the first electrode, the second electrode and light transmittance regulating course, described first electrode and
The electric field that described second electrode is constituted puts on described light transmittance regulating course, with to described light modulation film
Light transmittance be adjusted；Described light modulating device also includes the process being connected with described light modulation film
Module, is used for obtaining dim signal, and according to described dim signal to applying to described first electricity
The voltage of pole and described second electrode is adjusted respectively.
Preferably, described processing module includes light intensity sensor, is connected with described light intensity sensor
The controller connect and the driver being connected with described controller and driving source；Described light intensity passes
Sensor is for being acquired the light being incident to described light modulation film, and is generated by opto-electronic conversion
Described dim signal；Described controller, for according to described dim signal, obtains respectively and applies extremely
Described first electrode and the voltage of described second electrode；Described driver is also connected with described first electricity
Pole and described second electrode, for the output result according to controller, the electricity provided in the source of driving
Pressure distribution is to described first electrode and described second electrode.
Preferably, also include the adsorption piece being arranged at described light modulation film side, for by light modulation film
It is fixed on the carrier carrying described light modulation film.
Preferably, described adsorption piece includes Electrostatic Absorption layer or multiple equally distributed sucker.
Preferably, described light transmittance regulating course includes polymer dispersed liquid crystal layer；Or, described
Light transmittance regulating course includes polymer stabilized nematic liquid crystals layer, and is positioned at described polymer stabilized nematic liquid crystals
The oriented layer of layer both sides；Described first electrode and described second electrode lay respectively at described light transmittance
The both sides of regulating course.
Preferably, described light transmittance regulating course includes setting gradually lower polaroid, oriented layer,
Liquid crystal layer, described oriented layer and upper polaroid.
Preferably, described light transmittance regulating course is electrochromic layer；Described first electrode and described
Second electrode lays respectively at the both sides of described light transmittance regulating course.
Preferably, described driving source includes the transparent solar-electricity being arranged at described light modulation film side
Pond thin film.
Preferably, the holographic film being arranged at described light modulation film side is also included.
The another aspect of the embodiment of the present invention, it is provided that a kind of mobile unit, including as above
Any one light modulating device, wherein, the light modulation film of light modulating device is for being arranged at the vehicle window of vehicle
On.
Preferably, in the case of described light modulating device includes holographic film, described mobile unit is also
Including the projector being arranged in car and the photographic head being arranged at outside car；Described photographic head is used for
Road conditions outside to car are acquired, and by collection result output to described projector, described projection
Described road conditions are imaged in described holographic film and carry out holographic display by instrument.
The another aspect of the embodiment of the present invention, it is provided that the control method of a kind of light modulation film, described tune
Light film includes the first electrode, the second electrode and light transmittance regulating course；Described method includes: obtain
Take dim signal；According to described dim signal to applying to described first electrode and described second electricity
The voltage of pole is adjusted respectively；The electric field that described first electrode and described second electrode are constituted is executed
It is added on described light transmittance regulating course, the light transmittance of described light modulation film is adjusted.
The another further aspect of the embodiment of the present invention, it is provided that the control method of a kind of mobile unit, described
Mobile unit includes light modulation film, the holographic film being arranged at described light modulation film side, is arranged in car
Projector and the photographic head that is arranged at outside car；Obtain dim signal；According to described light modulation letter
Number the voltage applied to described first electrode and described second electrode is adjusted respectively；
The electric field that described first electrode and described second electrode are constituted puts on described light transmittance and adjusts
Ganglionic layer, is adjusted the light transmittance of described light modulation film, so that the light transmittance of described light modulation film
Less than or equal to printing opacity threshold value, described light modulation film is in non-transparent state；Outside photographic head is to car
Road conditions are acquired, and by collection result output to described projector；Described projector is by described
Road conditions image in holographic film and carry out holographic display.
The embodiment of the present invention provides a kind of light modulating device and control method, mobile unit and control thereof
Method processed, this light modulating device includes light modulation film.This light modulation film includes the first electrode, the second electrode
And light transmittance regulating course.Wherein, the electric field that the first electrode and the second electrode are constituted puts on
Light rate regulating course, is adjusted with the light transmittance to light modulation film.Additionally, light modulating device also includes
The processing module being connected with light modulation film, is used for obtaining dim signal, and according to this dim signal
The voltage applied to the first electrode and the second electrode is adjusted respectively.So, when entering
Penetrate light stronger time, the light transmittance of above-mentioned light modulation film can be adjusted so that above-mentioned incidence
Light light intensity after light modulation film decreases.Therefore apply to car when above-mentioned light modulating device
, and when light modulation film replaces vehicle sun visor be arranged at vehicle front windshield, can pass through
The light transmittance of regulation light modulation film reaches while light light intensity reduces to external world, it is to avoid to
The impact at visual angle, family.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below by right
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that,
Accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art
From the point of view of, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings
Figure.
The structural representation of a kind of light modulating device that Fig. 1 provides for the embodiment of the present invention；
Fig. 2 is the sectional view that in Fig. 1, light modulation film obtains along A-A cutting；
Fig. 3 is the concrete structure schematic diagram of processing module in Fig. 1；
Fig. 4 is a kind of structural representation of light transmittance regulating course in Fig. 2；
Fig. 5 is the another kind of structural representation of light transmittance regulating course in Fig. 2；
Fig. 6 is another structural representation of light transmittance regulating course in Fig. 2；
Fig. 7 is a kind of structural representation of the adsorption piece of the side being arranged at light modulation film；
Fig. 8 is the another kind of structural representation of the adsorption piece of the side being arranged at light modulation film；
The middle light modulation film one structural representation of the mobile unit that Fig. 9 provides for the embodiment of the present invention
Figure；
The middle light modulation film another kind structure of the mobile unit that Figure 10 provides for the embodiment of the present invention is shown
It is intended to；
Figure 11 is the structural representation of the light modulating device being provided with holographic film；
Figure 12 is projector and photographic head set-up mode inside and outside vehicle；
Figure 13 is the schematic diagram of holographic display；
The control method flow chart of a kind of light modulation film that Figure 14 provides for the embodiment of the present invention；
The control method flow chart of a kind of mobile unit that Figure 15 provides for the embodiment of the present invention.
Reference:
01-light modulating device；02-vehicle window；10-light modulation film；100-the first electrode；101-the second electricity
Pole；102-light transmittance regulating course；1021-liquid crystal molecule；1022-polymer；120-polymer
Stabilizing solution crystal layer；121-oriented layer；Polaroid under 122-；123-liquid crystal layer；The upper polarisation of 124-
Sheet；20-processing module；201-light intensity sensor；202-controller；203-driver；30-
Electrostatic Absorption layer；31-sucker；40-holographic film；41-projector；42-photographic head；50-drives
Source；F1-upper substrate；F2-infrabasal plate.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is entered
Row clearly and completely describes, it is clear that described embodiment is only a part of embodiment of the present invention,
Rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
Have and make the every other embodiment obtained under creative work premise, broadly fall into present invention protection
Scope.
The embodiment of the present invention provides a kind of light modulating device 01, as it is shown in figure 1, light modulation film 10.
This light modulation film 10 includes first electrode the 100, second electrode 101 and printing opacity as shown in Figure 2
Rate regulating course 102.Wherein, the electric field that the first electrode 100 and the second electrode 101 are constituted applies
In light transmittance regulating course 102, it is adjusted with the light transmittance to light modulation film 10.
It should be noted that owing to constituting the material of the first electrode 100 and the second electrode 200 be
Conductive material, therefore to avoid the first electrode 100 or outside of the second electrode 101, such as
First electrode 100 deviates from the side of light transmittance regulating course 102, and the second electrode 101 deviates from
The side conduction of light transmittance regulating course 102, it usually needs deviate from light transmittance at the first electrode 100
The side of regulating course 102 makes the upper substrate F1 with insulation, and carries on the back at the second electrode 101
The infrabasal plate F2 of insulation is made from the side of light transmittance regulating course 102.Wherein, above-mentioned upper base
Plate F1 and infrabasal plate F2 can use flexibility or rigidity material to constitute, such as transparent resin material
Or glass material.
Or, it is also possible to the outside of the first electrode 100 or the second electrode 101 is passivated place
Reason so that it is outside possesses insulation characterisitic.
Concrete, when applying different from the voltage on the first electrode 100 and the second electrode 101,
The electric field intensity that first electrode 100 and the second electrode 101 are constituted is the most different, therefore this light transmittance
The regulating course 102 light transmittance under different electric field intensity is the most different.Such that it is able to executed by control
Add to the first electrode 100 and voltage of the second electrode 101, reach to regulate light modulation film 10 printing opacity
The purpose of rate.
It should be noted that above-mentioned first electrode 100 and the second electrode 101 can be such as Fig. 2
Shown in lay respectively at the both sides of light transmittance regulating course 102, or may be located on this light transmittance and adjust
The same side of ganglionic layer 102, this is not limited by the present invention.
Additionally, as it is shown in figure 1, light modulating device 01 also includes the place being connected with light modulation film 10
Reason module 20, is used for obtaining dim signal, and according to this dim signal to applying to the first electricity
The voltage of pole 100 and the second electrode 101 is adjusted respectively.
The embodiment of the present invention provides a kind of light modulating device, including light modulation film.This light modulation film includes
One electrode, the second electrode and light transmittance regulating course.Wherein, the first electrode and the second electrode structure
The electric field become puts on light transmittance regulating course, is adjusted with the light transmittance to light modulation film.Additionally,
Light modulating device also includes the processing module being connected with light modulation film, is used for obtaining dim signal, and
According to this dim signal, the voltage applied to the first electrode and the second electrode is adjusted respectively.
So, on the one hand, when incident ray is stronger, can be to the light transmittance of above-mentioned light modulation film
It is adjusted so that above-mentioned incident ray light intensity after light modulation film decreases.Therefore
When above-mentioned light modulating device is applied to vehicle, and vehicle sun visor is replaced to be arranged at vehicle light modulation film
During front windshield, light light intensity to external world can be reached by the light transmittance of regulation light modulation film and enter
While row reduces, it is to avoid the impact on user perspective, additionally due to the passing through of above-mentioned light modulation film
Rate can be automatically adjusted, and therefore manually arranges without driver, improves the safety of driving.
On the other hand, whole vehicle front on vehicle is covered when the light modulation film in above-mentioned light modulating device
Wind glass, or during all glass of vehicle, can be by regulating the light transmittance of described light modulation film
Reach to reduce ambient and enter the effect of vehicle interior, such that it is able to prevent vehicle the most sudden and the most violent
It is exposed under high light problem overheated in (such as during summer) causes car.
Furthermore, above-mentioned light modulation film size can as required with carry this light modulation film load bearing component
Such as vehicle windows etc. match, so that light modulation film can fit tightly with load bearing component.
During the light transmittance of light modulation film 10 is adjusted, needs and be incident to light modulation
The light intensity of film 10 matches, such as when the light being incident to light modulation film 10 is stronger, and can
Significantly to reduce the light transmittance of light modulation film 10 so that through this light modulation film 10 light significantly
Degree declines, thus intense light is incident to human eye.Or, when the light being incident to light modulation film 10
When line is more weak, the light transmittance of light modulation film 10 can be reduced by a small margin so that through this light modulation film
The light of 10 declines by a small margin, thus when user observes the external world through light modulation film 10, owing to entering
The light being incident upon human eye is less, causes sight line to reduce and cannot see the external world clearly.Therefore this tune it is incident to
The amount of the light of light film 10 can affect the amplitude of accommodation of the light transmittance of light modulation film 10.
In this case, it is preferable to, above-mentioned processing module 20 is as it is shown on figure 3, can include
Controller 202 that light intensity sensor 201 is connected with light intensity sensor 201 and with control
The driver 203 that device 202 is connected with driving source 50.
Wherein, light intensity sensor 201 is used for being acquired the light being incident to light modulation film 10,
And generate above-mentioned dim signal by opto-electronic conversion.
Above-mentioned dim signal matches with the intensity of the light being incident to light modulation film 10.Concrete,
The light collected when light intensity sensor 201 is more, and the light being i.e. incident to light modulation film 10 is strong
When spending bigger, light intensity sensor 201 opto-electronic conversion generates the feature such as frequency of above-mentioned dim signal
Rate or amplitude are bigger.The light collected when light intensity sensor 201 is less, is i.e. incident to light modulation
When the light intensity of film 10 is less, light intensity sensor 201 opto-electronic conversion generates above-mentioned light modulation letter
Number feature such as frequency or amplitude less.
On this basis, this controller 202 is for according to above-mentioned dim signal, and it is right to obtain respectively
Apply to the first electrode 100 and voltage of the second electrode 101.
Such as, when the feature such as frequency or amplitude of above-mentioned dim signal are bigger, this controller
202 pre-applied obtained are relatively big to the voltage of the first electrode 100 and the second electrode 101, thus
Make pre-applied relatively big, significantly to reduce light modulation film in the electric field of light transmittance regulating course 102
The light transmittance of 10 so that the light through this light modulation film 10 significantly declines.
It should be noted that controller 202 obtains respectively to applying to the first electrode 100 and the
The voltage of two electrodes 101, can be according to above-mentioned dim signal to applying to the first electrode 100 He
The voltage of the second electrode 101 is respectively calculated.Or, can be in advance by every for light modulation film 10
The voltage putting on the first electrode 100 and the second electrode 101 that one light transmittance is corresponding is deposited
Storage, this controller 202 can put on the first electrode 100 according to above-mentioned dim signal to above-mentioned
Call with the voltage of the second electrode 101.
Additionally, this processing module 20 can also include driver 203, this driver 203 is even
Connect driving source 50, for the output result according to controller 202, driving source 50 is provided
Voltage distributes to the first electrode 100 and the second electrode 101.
It should be noted that above-mentioned driving source 50 is for providing the device of power supply, such as when
Above-mentioned light modulating device is applied to vehicle, and replaces vehicle sun visor to be arranged at car light modulation film 10
During front windshield, above-mentioned driving source 50 can be the storage battery of vehicle；Or, when above-mentioned
Light modulating device is applied to building construction, and is arranged on the glass of building construction by light modulation film 10
Time, above-mentioned driving source 50 can be house lead in (or power line)；Or, due to light
This light modulation film 10 can be incident to, it is therefore preferred that above-mentioned driving source 50 is arranged at light modulation film
The transparent solar cell thin film of 10 sides, thus reach the effect of energy-conserving and environment-protective.
Hereinafter the concrete structure of the light transmittance regulating course 102 in above-mentioned light modulation film 10 is carried out in detail
Thin illustration.
Embodiment one
In the present embodiment, above-mentioned light transmittance regulating course 102 includes that polymer disperses as shown in Figure 4
Liquid crystal (English full name: Polymer Dispersed Liquid Crystal, English abbreviation: PDLC)
Layer.
Wherein, polymer dispersed liquid crystal layer is made up of liquid crystal molecule 1021 and polymer 1022,
In liquid crystal molecule 1021 dispersion and polymer 1022, and polymer 1022 divides at this polymer
Dissipate proportion in liquid crystal layer bigger.
In the case, above-mentioned first electrode 100 and the second electrode 101 lay respectively at light transmittance
The both sides of regulating course 102.When the first electrode 100 and the second electrode 101 no-voltage apply,
The light transmittance of the light transmittance regulating course 102 being made up of this polymer dispersed liquid crystal layer is minimum, when by
Cumulative when being affixed by the voltage adding to the first electrode 100 and the second electrode 101, light transmittance regulating course
The light transmittance of 102 is gradually increased.
Therefore, the light collected when light intensity sensor 201 is more, is i.e. incident to light modulation film
When the light intensity of 10 is bigger, apply to the first electrode 100 and the second electrode 101 as long as reducing
Voltage, it is possible to reduce light transmittance regulating course 102 light transmittance so that light is through overregulating
After layer 10, light intensity is greatly lowered, it is to avoid the intense light stimulation to human eye.
Embodiment two
In the present embodiment, above-mentioned light transmittance regulating course 102 is as it is shown in figure 5, include that polymer is steady
Determine liquid crystal (English full name: Polymer Stabilized Liquid Crystal, English abbreviation: PSLC)
Layer 120, and it is positioned at the oriented layer 121 of polymer stabilized nematic liquid crystals layer 120 both sides.
Wherein, polymer stabilized nematic liquid crystals layer 120 is by liquid crystal molecule 1021 and polymer 1022
Constituting, liquid crystal molecule 1021 alternately superposes with polymer 1022, and liquid crystal molecule 1021 exists
In this polymer stabilized nematic liquid crystals layer 120, proportion is bigger.Above-mentioned oriented layer 121 enables to polymerization
In thing stabilizing solution crystal layer 120, liquid crystal molecule 1021 is under original state (i.e. without electric field action)
Proper alignment.
In the case, above-mentioned first electrode 100 and the second electrode 101 lay respectively at light transmittance
The both sides of regulating course 102.When the first electrode 100 and the second electrode 101 no-voltage apply,
The light transmittance of the light transmittance regulating course 102 being made up of this polymer stabilized nematic liquid crystals layer 120 is the highest,
When being gradually increased the voltage applied to the first electrode 100 and the second electrode 101, light transmittance is adjusted
The light transmittance of ganglionic layer 102 is gradually reduced.
Therefore, the light collected when light intensity sensor 201 is more, is i.e. incident to light modulation film
When the light intensity of 10 is bigger, apply to the first electrode 100 and the second electrode 101 as long as increasing
Voltage, it is possible to reduce light transmittance regulating course 102 light transmittance so that light is through overregulating
After layer 10, light is slightly greatly lowered, it is to avoid the intense light stimulation to human eye.
In sum, PSLC is under original state (i.e. without electric field action), and light transmittance is the highest；
PDLC is under original state (i.e. without electric field action), and light transmittance is minimum.Therefore user is worked as
During using light modulating device 01, need formerly to ensure the definition of light modulation film 10, make
The extraneous view must seen through above-mentioned light modulation film 10 or picture clearly on the basis of, consider further that
When reducing the light intensity being incident to human eye through light modulation film 10, preferably by PSLC and orientation
The light transmittance regulating course 102 that layer is constituted.So, it is only necessary to the first electrode 100 and
Two electrodes 101 apply a small amount of voltage, and the light transmittance of PSLC just has fraction of decline, reaches
It is incident to the intensity of the light of human eye to reduction, and ensures the mesh of the definition of light modulation film 10
, therefore there is the effect of power saving.
Embodiment three
In the present embodiment, light transmittance regulating course 102 as shown in Figure 6, including setting gradually down
Polaroid 122, oriented layer 121, liquid crystal layer 123, above-mentioned oriented layer 121 and upper polarisation
Sheet 124.
In the case, above-mentioned first electrode 100 and the second electrode 101 can be as shown in Figure 6
Lay respectively at the both sides of light transmittance regulating course 102, now the first electrode 100 and the second electrode
101 are planar, by the vertical electric field being made up of the first electrode 100 and the second electrode 101
Control the yawing moment of liquid crystal molecule 1021 in liquid crystal layer 123, saturating with to liquid crystal layer 123
Light rate is adjusted.
Or, it is also possible to it is positioned at the same side of this light transmittance regulating course 102, in the case,
When the first electrode 100 and the second different layer of electrode 101 are arranged, the first electrode 100 and the second electricity
One of them in pole 101 can be plane-shape electrode, and another is by multiple spaced strips
Electrode is constituted.When the first electrode 100 and the second electrode 101 are arranged with layer, the first electrode
100 and second electrode 101 constituted by multiple spaced strip shaped electric poles, wherein, first
Strip shaped electric poles in electrode 100 and the strip shaped electric poles in the second electrode 101 are arranged in a crossed manner.So
One, multi-dimensional electric field can be constituted between the first electrode 100 and the second electrode 101, to control
The yawing moment of liquid crystal molecule 1021 in liquid crystal layer 123, with the light transmittance to liquid crystal layer 123
It is adjusted.
Wherein, the present invention can not to the polarization direction of lower polaroid 122 and upper polaroid 124
Limiting, the polarization direction i.e. descending polaroid 122 and upper polaroid 124 can be identical, it is possible to
With difference.
Embodiment four
In the present embodiment, light transmittance regulating course 102 can be electrochromic layer.This electrochromism
Layer is made up of electrochromic material.On this basis, the first electrode 100 and the second electrode 101
Lay respectively at the both sides of light transmittance regulating course 102.In the case, above-mentioned electrochromic layer exists
Under the electric field action that first electrode 100 and the second electrode 101 are constituted, color and transparency occur
Reversible change, thus reach the purpose that the light transmittance of light modulation film 10 is adjusted.
Further, it is arranged at vehicle window or building construction for the ease of above-mentioned light modulation film 10
On glass, it is preferred that this light modulating device 01 also includes the absorption being arranged at light modulation film 10 side
Part, for light modulation film 10 being fixed on the carrier carrying this light modulation film 10, the most above-mentioned vehicle window or
On the glass of person's building construction.
Concrete, this adsorption piece can be permissible as it is shown in fig. 7, comprises Electrostatic Absorption layer 30
Avoid remaining viscose vestige on the carrier carrying this light modulation film 10；Or wrap as shown in Figure 8
Include multiple equally distributed sucker 31, by driving sucker 31 out of and carrying this light modulation film 10
Air between carrier forms negative pressure, thus is firmly fixed to carry this tune by light modulation film 10
On the carrier of light film 10.
It should be noted that light modulation film 10, transparent solar cell thin film and adsorption piece it
Between can pass through optical cement (English full name: Optically Clear Adhesive, English abbreviation
OCA) bond.
Further, above-mentioned light modulating device also includes the holographic film being arranged at light modulation film 10 side
40 (as shown in figure 11).So, it is applied to vehicle when light modulating device or building are built
When building, above-mentioned holographic film can be attached on vehicle or building together in company with light modulation film 10
Glass on, such that it is able to show in Che Nei or indoor realization holography.
The embodiment of the present invention provides a kind of mobile unit to include any one light modulation as above
Device 01, wherein, the light modulation film 10 of light modulating device 01 is used for being arranged at car as shown in Figure 9
Vehicle window 02 on, wherein, light modulation film 10 can be arranged at the outside of above-mentioned vehicle window 02,
Or being arranged at the vehicle window 02 inner side near compartment, this is not construed as limiting by the present invention.
Additionally, the structure of light modulating device 01 in this mobile unit and beneficial effect and aforementioned reality
The structure executing the light modulating device 01 that example provides is identical with beneficial effect, and here is omitted.
It should be noted that the vehicle window 02 of above-mentioned vehicle can include front windshield, backstop
Wind glass and the glass of vehicular sideview.When light modulation film 10 is arranged at front windshield, can
The position corresponding to be only arranged at driver as shown in Figure 9, or as shown in Figure 10, light modulation
Film 10 on front windshield to arrange position the most right with the position of driver and copilot
Should.Or, the part or all of vehicle window 02 of above-mentioned vehicle can modulated light film 10 completely
Cover.
Further, when above-mentioned front windshield can modulated light film 10 covers completely time,
In the case of ambient intensity is too high, driver can be by the process in light modulating device 01
The light transmittance of light modulation film 10 is adjusted to minimum by module 20, thus overheated in avoiding car.But this
Sample one carrys out driver cannot see road conditions outside window.
Therefore, in order to ensure that driver still can normally travel, this mobile unit such as Figure 11
Shown in, in the case of above-mentioned light modulating device also includes holographic film 40, this mobile unit includes
The projector 41 being arranged in car as shown in figure 12 and the photographic head 42 being arranged at outside car.
Wherein, the above-mentioned photographic head 42 road conditions outside to car are acquired, and collection are tied
Fruit is carried out data process by processing module 20 and is exported to projector 41, this projector 41
Road conditions are imaged in holographic film 40 and carries out holographic display.
It should be noted that the position of the photographic head 42 that this method is to being installed on outside car and individual
Number does not limits, such as, can install above-mentioned photographic head 42 in the front end of vehicle, or, also
Above-mentioned photographic head 42 can be also installed on the rearview mirror of vehicle, as long as ensure that above-mentioned taking the photograph
As 42 can to car outside road conditions be acquired.In addition the present invention is to being installed in car
The position of projector 41 do not limit, as long as ensure that the road collected by photographic head 42
Condition images in holographic film 40, shows realizing holography.
Wherein, in order to realize above-mentioned holographic display, as shown in figure 13, need at projector 41
The angle that arranges between reflecting surface C, and above-mentioned holographic film 40 and this reflecting surface C of lower section be
45°.So, the most above-mentioned for hologram photographic head 42 can be collected by projector 41
Road conditions be first projected on reflecting surface C, above-mentioned hologram is become by the reflection through this reflecting surface C
Picture is on holographic film 40, thus realizes holographic display.
Above-mentioned holographic film 40 has higher absorbance (more than 95%) and higher reflectance,
And the state that is translucent such that it is able to while keeping picture rich in detail, people can be allowed to experience
Certain Space.
It should be noted that in order to avoid the road conditions of above-mentioned holographic display and driver see true
Physical circuit condition is overlapping, causes ghost image, can be as desired by the process mould in light modulating device 01
The light transmittance of light modulation film 10 is adjusted to minimum by block 20, so that driver cannot see truly
Road conditions, only see and shown the road conditions obtained by holography.
The embodiment of the present invention provides the control method of a kind of light modulation film.Wherein, this light modulation film 10
As in figure 2 it is shown, first electrode the 100, second electrode 101 and light transmittance regulation can be included
Layer 102.In the case, the control method of above-mentioned light modulation film such as Figure 14 includes:
S101, acquisition dim signal.
Concrete, user can be directly defeated to light modulating device 01 by voice or touch control operation
Enter above-mentioned dim signal.Or when the processing module 20 in light modulating device 01 includes that light intensity senses
During device 201, the light being incident to light modulation film 10 can be adopted by this light intensity sensor 201
Collection, and generate above-mentioned dim signal by opto-electronic conversion.
S102, according to dim signal to apply to the first electrode 100 and electricity of the second electrode 101
Pressure is adjusted respectively.
The electric field that S103, the first electrode 100 and the second electrode 101 are constituted puts on light transmittance and adjusts
Ganglionic layer 102, is adjusted the light transmittance of light modulation film 10.
So, when incident ray is stronger, the light transmittance of above-mentioned light modulation film can be carried out
Regulation so that above-mentioned incident ray light intensity after light modulation film decreases.Therefore when upper
State light modulating device to apply to vehicle, and light modulation film replaces vehicle sun visor be arranged at vehicle front
During wind glass, light light intensity to external world can be reached by the light transmittance of regulation light modulation film and drop
While low, it is to avoid the impact on user perspective.
The embodiment of the present invention provides the control method of a kind of mobile unit, wherein, such as Figure 11 institute
Show, also include the holographic film 40 being arranged at light modulation film 10 side, and set as shown in figure 12
The projector 41 being placed in car and the photographic head 42 being arranged at outside car.In the case, institute
State the control method of mobile unit as shown in figure 15, including:
S201, acquisition dim signal.
The mode of concrete acquisition dim signal is same as above.
S202, according to dim signal to apply to the first electrode 100 and electricity of the second electrode 101
Pressure is adjusted respectively；
The electric field that S203, the first electrode 100 and the second electrode 101 are constituted puts on light transmittance and adjusts
Ganglionic layer 102, is adjusted the light transmittance of light modulation film 10, so that the printing opacity of light modulation film 10
Rate is less than or equal to printing opacity threshold value, and this light modulation film 10 is in non-transparent state.
Above-mentioned printing opacity threshold value, is in the transmitance of the many correspondences of non-transparent state, i.e. for light film 10
When the light transmittance of light modulation film 10 is less than or equal to above-mentioned printing opacity threshold value, and this light modulation film 10 is in non-
Pellucidity.
So, when above-mentioned front windshield can modulated light film 10 covers completely time,
In the case of ambient intensity is too high, driver can be by the process in light modulating device 01
The light transmittance of light modulation film 10 is adjusted to minimum by module 20, thus overheated in avoiding car.
S204, photographic head 42 to car outside road conditions be acquired, and by collection result number
Export to projector 41 according to after processing.
Above-mentioned road conditions are imaged in holographic film 40 by S205, this projector 41, carry out holographic display.
So, in the case of light modulation film 10 is in non-transparent state, driver is permissible
By the hologram of the above-mentioned holographic display of viewing, remain able to continue to travel.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is also
Being not limited to this, any those familiar with the art is at the technology model that the invention discloses
In enclosing, change can be readily occurred in or replace, all should contain within protection scope of the present invention.
Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (13)
1. a light modulating device, it is characterised in that include that light modulation film, described light modulation film include
One electrode, the second electrode and light transmittance regulating course, described first electrode and described second electrode
The electric field constituted puts on described light transmittance regulating course, carries out with the light transmittance to described light modulation film
Regulation；
Described light modulating device also includes the processing module being connected with described light modulation film, is used for obtaining
Dim signal, and according to described dim signal to applying to described first electrode and described second electricity
The voltage of pole is adjusted respectively.
Light modulating device the most according to claim 1, it is characterised in that described processing module
The controller that is connected with described light intensity sensor including light intensity sensor and with described control
The driver that device is connected with driving source；
Described light intensity sensor is for being acquired the light being incident to described light modulation film, and leads to
Cross opto-electronic conversion and generate described dim signal；
Described controller, for according to described dim signal, obtains respectively and applies to described first electricity
Pole and the voltage of described second electrode；
Described driver is also connected with described first electrode and described second electrode, for according to control
The output result of device, the voltage distribution provided in the source of driving is to described first electrode and described second
Electrode.
Light modulating device the most according to claim 1, it is characterised in that also include being arranged at
The adsorption piece of described light modulation film side, for being fixed on the load carrying described light modulation film by light modulation film
On body.
Light modulating device the most according to claim 3, it is characterised in that described adsorption piece bag
Include Electrostatic Absorption layer or multiple equally distributed sucker.
5. according to the light modulating device described in any one of claim 1-4, it is characterised in that described
Light transmittance regulating course includes polymer dispersed liquid crystal layer；Or, described light transmittance regulating course includes
Polymer stabilized nematic liquid crystals layer, and it is positioned at the oriented layer of described polymer stabilized nematic liquid crystals layer both sides；
Described first electrode and described second electrode lay respectively at the two of described light transmittance regulating course
Side.
6. according to the light modulating device described in any one of claim 1-4, it is characterised in that described
Light transmittance regulating course includes lower polaroid, oriented layer, liquid crystal layer and the upper polarisation set gradually
Sheet.
7. according to the light modulating device described in any one of claim 1-4, it is characterised in that described
Light transmittance regulating course is electrochromic layer；
Described first electrode and described second electrode lay respectively at the two of described light transmittance regulating course
Side.
8. according to the light modulating device described in any one of claim 1-4, it is characterised in that described
Driving source includes the transparent solar cell thin film being arranged at described light modulation film side.
9. according to the light modulating device described in any one of claim 1-4, it is characterised in that also wrap
Include the holographic film being arranged at described light modulation film side.
10. a mobile unit, it is characterised in that include as described in any one of claim 1-9
Light modulating device, wherein, the light modulation film of light modulating device is for being arranged at the vehicle window of vehicle.
11. mobile units according to claim 10, it is characterised in that in described light modulation
In the case of device includes holographic film, described mobile unit also includes the projector being arranged in car
And the photographic head being arranged at outside car；
Described photographic head road conditions outside to car are acquired, and export collection result to institute
Stating projector, described road conditions are imaged in described holographic film and carry out holographic display by described projector.
The control method of 12. 1 kinds of light modulation films, it is characterised in that described light modulation film includes first
Electrode, the second electrode and light transmittance regulating course；Described method includes:
Obtain dim signal；
According to described dim signal to applying to described first electrode and the voltage of described second electrode
It is adjusted respectively；
The electric field that described first electrode and described second electrode are constituted puts on the regulation of described light transmittance
Layer, is adjusted the light transmittance of described light modulation film.
The control method of 13. 1 kinds of mobile units, it is characterised in that described mobile unit includes
Light modulation film, be arranged at the holographic film of described light modulation film side, the projector being arranged in car and
The photographic head being arranged at outside car；
Obtain dim signal；
According to described dim signal to applying to described first electrode and the voltage of described second electrode
It is adjusted respectively；
The electric field that described first electrode and described second electrode are constituted puts on the regulation of described light transmittance
Layer, is adjusted the light transmittance of described light modulation film, so that the light transmittance of described light modulation film is little
In or equal to printing opacity threshold value, described light modulation film is in non-transparent state；
Photographic head to car outside road conditions be acquired, and by collection result output to described projector；
Described road conditions are imaged in holographic film and carry out holographic display by described projector.
Priority Applications (1)
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| CN201610532041.4A CN105929576A (en) | 2016-07-04 | 2016-07-04 | Dimming device and control method thereof as well as vehicle-mounted device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610532041.4A CN105929576A (en) | 2016-07-04 | 2016-07-04 | Dimming device and control method thereof as well as vehicle-mounted device and control method thereof |
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| CN105929576A true CN105929576A (en) | 2016-09-07 |
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| CN201610532041.4A Pending CN105929576A (en) | 2016-07-04 | 2016-07-04 | Dimming device and control method thereof as well as vehicle-mounted device and control method thereof |
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| CN106364288A (en) * | 2016-09-13 | 2017-02-01 | 力帆实业(集团)股份有限公司 | Automobile glass with automatic dust removal and dimming functions |
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Application publication date: 20160907 |