CN109164659A - Electrochromic device, preparation method thereof and electronic equipment - Google Patents
Electrochromic device, preparation method thereof and electronic equipment Download PDFInfo
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- CN109164659A CN109164659A CN201811161246.1A CN201811161246A CN109164659A CN 109164659 A CN109164659 A CN 109164659A CN 201811161246 A CN201811161246 A CN 201811161246A CN 109164659 A CN109164659 A CN 109164659A
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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
- G02F1/15—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
- G02F1/153—Constructional details
- G02F1/1533—Constructional details structural features not otherwise provided for
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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
- G02F1/15—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
- G02F1/153—Constructional details
- G02F1/155—Electrodes
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- Optics & Photonics (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
本发明公开了电致变色装置及其制备方法、电子设备。具体的，该电致变色装置包括：相对设置的第一衬底以及第二衬底，以及位于所述第一衬底和所述第二衬底之间的第一透明导电层以及第二导电层，所述第一透明导电层以及所述第二导电层之间具有电致变色层，其中，所述第一透明导电层上预留有第一接线区域，所述第一衬底以及所述第一透明导电层之间，具有至少覆盖所述第一接线区域的油墨层，所述电致变色装置的颜色可随着所述第一透明导电层以及所述第二导电层之间的电压的改变而改变。由此，该电致变色装置具有良好的外观效果。
The present invention discloses an electrochromic device, a preparation method thereof, and an electronic device. Specifically, the electrochromic device comprises: a first substrate and a second substrate arranged opposite to each other, and a first transparent conductive layer and a second conductive layer located between the first substrate and the second substrate, an electrochromic layer is provided between the first transparent conductive layer and the second conductive layer, wherein a first wiring area is reserved on the first transparent conductive layer, and an ink layer at least covering the first wiring area is provided between the first substrate and the first transparent conductive layer, and the color of the electrochromic device can change with the change of the voltage between the first transparent conductive layer and the second conductive layer. As a result, the electrochromic device has a good appearance effect.
Description
Technical field
The present invention relates to electronic equipment manufacturing fields, and in particular, to electrochromic device and preparation method thereof, electronics are set
It is standby.
Background technique
With the continuous development of field of electronic device technology of preparing, case material for electronic equipment also enriches therewith.
With the raising of the level of consumption, consumer not only pursues electronic product the diversification of function, but also to its appearance, texture etc.
There are increasingly higher demands.And the appearance shell of current electronic equipment, once after the completion of preparation, appearance color is to fix, no
Variable, therefore, it is difficult to meet the various demands of user.
Summary of the invention
The application is to be made based on inventor to the discovery of following facts and problem and understanding:
Electrochromic device is to be arranged at two by the electrochromic layer for forming electrochromic material by conductive material
Between the conductive layer (electrode) of formation, and apply voltage between two conductive layers and form electric field, electrochromic layer can be driven
Discoloration.The conductive layer of electrochromic device at the middle and upper levels generallys use transparent conductive material preparation, thus the color of electrochromic layer
And color change can be showed through transparency conducting layer, allow device that different face is presented under different voltage
Color.But for the considerations of reducing device resistance, the connecting line on conductive layer for connecting power supply is usually by opaque conduction
What material was formed, which will cause the open defect of electrochromic device, and can cover and influence electroluminescent change
Chromatograph color appears, and then influences the appearance of electrochromic device.Therefore, with reference to Fig. 2, in order to cover transparent electrode
Conductor wire 600 on (i.e. the first transparency conducting layer 200), it usually needs additional structural member 20 is set on electrochromic device
(i.e. barrier material).But since the electrochromic device for electronic equipment (such as electronic equipment appearance shell) is one
Exposed complete structure, therefore, it is impossible to cover conductor wire 600 by the way that structural member 20 is arranged outside electrochromic device.
Therefore, if a kind of new electrochromic device can be proposed, opaque connecting line can be easily covered, and do not influence entire electricity
The electrochromism appearance for causing color-changing device, will largely solve the above problems.
The present invention is directed to solve at least some of the technical problems in related technologies.
In one aspect of the invention, the invention proposes a kind of electrochromic devices.According to an embodiment of the invention, should
Electrochromic device includes: the first substrate and the second substrate being oppositely arranged, and is located at first substrate and described the
The first transparency conducting layer and the second conductive layer between two substrates, first transparency conducting layer and second conductive layer
Between there is electrochromic layer, wherein be reserved with the first wire area on first transparency conducting layer, first substrate with
And between first transparency conducting layer, there is the ink layer at least covering first wire area, the electrochromism dress
The color set can change with the change of the voltage between first transparency conducting layer and second conductive layer.By
This, which can easily cover the opaque connecting line etc. in the first wire area, avoid connecting line bring appearance
Defect；And the ink layer itself has an appearances such as certain color, and the appearances such as color of the ink layer can be with
It is combined and is superimposed with the color effects of electrochromic layer, to further improve the appearance of electrochromic device.
In another aspect of this invention, the invention proposes a kind of methods for preparing electrochromic device.According to the present invention
Embodiment, this method comprises: forming ink layer in the side of the first substrate, the ink layer covers the portion of first substrate
Divide surface；Electrochromic cells, the electrochromic cells packet are formed far from the side of first substrate in the ink layer
Include the first transparency conducting layer, electrochromic layer and the second conductive layer, and the first wiring in first transparency conducting layer
The first connecting line is arranged in region, and the second connecting line is arranged in the second wire area in second conductive layer, wherein the oil
Layer of ink covers first wire area.This method can easily prepare the good electrochromism dress of appearance as a result,
It sets.
In still another aspect of the invention, the invention proposes a kind of electronic equipment.According to an embodiment of the invention, the electronics
Equipment includes: mentioned-above electrochromic device, and control circuit, the control circuit is for the fortune according to the electronic equipment
Row state controls the electrochromic device discoloration；And screen, the screen is for showing information.The electronic equipment as a result,
Have the advantages that whole feature possessed by mentioned-above electrochromic device and, details are not described herein.
Detailed description of the invention
Fig. 1 shows the structural schematic diagram of electrochromic device according to an embodiment of the invention；
Fig. 2 shows the structural schematic diagram of existing electrochromic device；
Fig. 3 shows the structural schematic diagram of electrochromic device in accordance with another embodiment of the present invention；
Fig. 4 shows the structural schematic diagram of the electrochromic device of another embodiment according to the present invention；
Fig. 5 shows the structural schematic diagram of the electrochromic device of another embodiment according to the present invention；
Fig. 6 shows the method flow diagram according to an embodiment of the invention for preparing electrochromic device；
Fig. 7 shows the method flow diagram in accordance with another embodiment of the present invention for preparing electrochromic device；And
Fig. 8 shows the structural schematic diagram of electronic equipment according to an embodiment of the invention.
Description of symbols:
10: ink layer；20: structural member；100: the first substrates；200: the first transparency conducting layers；210: the first wire areas；
300: electrochromic layer；400: the second conductive layers；410: the second wire areas；500: the second substrates；600: connecting line；700: electricity
Solve matter layer；800: ion storage layer；1000: electrochromic device；1100: electronic equipment.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In one aspect of the invention, the invention proposes a kind of electrochromic devices.According to an embodiment of the invention, ginseng
Fig. 1 is examined, which includes: the first substrate 100 and the second substrate 500 being oppositely arranged, and is located at the
The first transparency conducting layer 200 and the second conductive layer 400 between one substrate 100 and the second substrate 500, the first transparency conducting layer
200 and second there is electrochromic layer 300 between conductive layer 400, wherein be reserved with first on the first transparency conducting layer 200
Wire area 210 between first substrate 100 and the first transparency conducting layer 200, has and at least covers the first wire area 210
Ink layer 10, the color of the electrochromic device 1000 can with the first transparency conducting layer 200 and the second conductive layer 400 it
Between voltage change and change.In other words, according to an embodiment of the invention, the first substrate 100, ink layer 10, first are saturating
Bright conductive layer 200, electrochromic layer 300, the second conductive layer 400 and the second substrate 500.Wherein, the first transparency conducting layer 200
The side of first substrate 100 is set, the first wire area 210 is reserved on the first transparency conducting layer 200, ink layer 10 is arranged
Between the first substrate 100 and the first transparency conducting layer 200, and at least cover the first wire area 210, electrochromic layer
300 are arranged in side of first transparency conducting layer 200 far from the first substrate 100, and the second conductive layer 400 is arranged in electrochromic layer
300 sides far from the first transparency conducting layer 200, the second substrate 500 are arranged in the second conductive layer 400 far from electrochromic layer
300 side.The ink layer 10 can easily cover the opaque connecting line being arranged in the first wire area 210 as a result,
(not shown) etc. avoids connecting line bring open defect；And the ink layer 10 itself has certain color etc. outer
Effect is seen, the appearances such as color of the ink layer 10 can also be combined with the color effects of electrochromic layer 300 and be superimposed,
To further enrich the appearance of electrochromic device 1000.
In order to facilitate understanding, above-mentioned technical effect is able to achieve to electrochromic device according to an embodiment of the present invention below
Principle is illustrated:
As previously mentioned, when preparing electrochromic device currently with electrochromic material, for connecting power supply on conductive layer
Connecting line be usually is formed by opaque conductive material, the appearance which will cause electrochromic device is scarce
It falls into, and can cover and influence appearing for electrochromic layer color, and then influence the appearance of electrochromic device.According to this
The electrochromic device of inventive embodiments, by the way that ink layer is arranged between the first substrate and the first transparency conducting layer, the ink
Layer at least covers the first wire area, so as to the opaque connecting line etc. for easily covering the first wire area, avoids not
The open defect of electrochromic device caused by transparent connecting line；Also, the ink layer itself has the appearances such as color, texture effect
Fruit can promote the appearance of electrochromic device, moreover, the appearances such as the color of the ink layer, texture, it can be with electroluminescent change
The color of chromatograph is combined superposition, so as to so that the electrochromic device have color more abundant and appearance, into
And use the casting of electronic device of the electrochromic device etc. with color more abundant and appearance.
Below according to the embodiment of the present invention, each structure of the electrochromic device is described in detail:
According to an embodiment of the invention, the specific material of the first substrate 100 is not particularly limited, if the first substrate be by
Transparent material formation, the color that electrochromic layer 300 generates as a result, can through the first transparency conducting layer 200 and
First substrate 100 shows.Specifically, the transparent material for forming the first substrate 100 can be glass, glass material has good
Good translucency, corrosion resistance, heat resistance and it is easy to process the advantages that, and simplicity of drawing materials is low in cost.Specifically, shape
It can be able to be more specifically polyethylene terephthalate or poly- carbon for plastic cement at the transparent material of the first substrate 100
Acid esters makes electrochromic device fall performance, and its cost with resistance to thus, it is possible to enhance the toughness of electrochromic device
It is more cheap.According to an embodiment of the invention, the appearance shell of the first substrate 100 or electronic equipment, thus, it is possible to simple
Just making the appearance shell of electronic equipment has electrochromic appearance abundant, enriches the appearance of electronic equipment.
According to an embodiment of the invention, the specific material for forming the first transparency conducting layer 200 is not particularly limited, specifically
, it can be metal-oxide film or nano silver, wherein metal-oxide film can be tin indium oxide (ITO) film
And at least one of indium zinc oxygen (IZO) film.As a result, the first transparency conducting layer 200 can have good electric conductivity and
Higher transparency.
According to an embodiment of the invention, being reserved with the first wire area 210, the first wiring on the first transparency conducting layer 200
Connecting line etc. (connecting line 600 with reference to shown in Fig. 4) can be set in region 210, be used for the first transparency conducting layer 200
It is electrically connected with power supply.Specifically, connecting line (connecting line 600 with reference to shown in Fig. 4) is by opaque conductive material
It is formed, such as can be and formed by metals such as copper, aluminium.According to an embodiment of the invention, the size of the first wire area 210
It is not particularly limited with position, specifically, the first wire area 210 can be located at the marginal position of the first transparency conducting layer 200,
Facilitate as a result, and is electrically connected the first transparency conducting layer 200 and external power supply.
According to an embodiment of the invention, ink layer 10 is arranged between the first substrate 100 and the first transparency conducting layer 200,
And at least cover the first wire area 210.The ink layer 10 can cover opaque in the first wire area 210 as a result,
Connecting line etc. avoids the open defect of electrochromic device caused by opaque connecting line, promotes the appearance of electrochromic device.
Specifically, the ink layer 10 can cover the first wire area when forming the shell of electronic equipment using the electrochromic device
Opaque connecting line in 210 etc. avoids the open defect of shell caused by opaque connecting line, promotes the appearance of shell.Root
According to the embodiment of the present invention, since the partial region between the first substrate 100 and the first transparency conducting layer 200 is provided with ink
Layer 10, therefore, when deposition forms the first transparency conducting layer 200 on the first substrate 100, the first transparency conducting layer 200 is deposited on
The surface of ink layer 10 and the first substrate 100, if the thickness of the first transparency conducting layer 200 is too small, be easy to cause first thoroughly
The thickness uniformity of bright conductive layer 200 is poor, and then influences the electric conductivity etc. of the first transparency conducting layer 200, influences electroluminescent
The service performance of color-changing device, therefore, according to an embodiment of the invention, the thickness of the first transparency conducting layer 200 is not less than 30nm,
Can be 30-250nm, thus, it is possible to avoid because the thickness of the first transparency conducting layer 200 it is too small caused by it is bad.Specifically, the
The thickness of one transparency conducting layer 200 can be 150-250nm, as a result, the first transparency conducting layer 200 with the thickness with compared with
Good service performance.According to an embodiment of the invention, the thickness of ink layer 10 is not particularly limited, as long as the first wiring can be covered
Opaque connecting line in region 210 etc..It is formed specifically, being deposited on the first substrate 100 for printed ink layer 10
When the first transparency conducting layer 200, finally formed first transparency conducting layer 200 may have far from the side of the first substrate 100
Certain thickness deviation (the first transparency conducting layer 200 oil the 10 thicker protrusion in corresponding region of layer of ink), but since the thickness is inclined
Difference is smaller, the service performance of electrochromic device is not influenced, and it is possible to pass through the subsequent shape on the first transparency conducting layer 200
It is adjusted when at other structures, as long as keeping the surface of finally formed electrochromic device more smooth.According to this hair
Bright embodiment needs to form the first transparency conducting layer 200 far from the side of the first substrate 100 in ink layer 10 due to subsequent,
The methods of the deposition used when forming the first transparency conducting layer 200, temperature is higher, and therefore, the ink for forming ink layer 10 can be with
For high temperature resistant ink, thus will not influence the structure and appearance of ink layer 10 during entirely preparing electrochromic device,
Further improve the service performance of electrochromic device.
According to an embodiment of the invention, the concrete type of ink layer 10 is not particularly limited, such as ink layer 10 can be
What the ink by printing certain color on the first substrate 100 was formed.Specifically, ink layer 10 can have single color
Effect, it is possible to have the combined effect of multiple color, such as ink layer 10 can have multiple color color hitting effect and
Gradient color effect etc..Specifically, ink layer 10 can also have the combined effect of color and textured pattern etc. simultaneously, as a result,
On the one hand, ink layer 10 can preferably cover opaque connecting line, avoid electrochromic device caused by opaque connecting line
Open defect；On the other hand, the appearances such as the color of the ink layer 10 and textured pattern can penetrate the first substrate 100
It shows, and then enriches the appearance of electrochromic device.For example, being provided with ink layer on the first substrate 100 with reference to Fig. 1
10 region 100A can have the appearances such as color and the pattern of the presentation of ink layer 10, the region of not set ink layer 10
100B can show the color and color change effect of electrochromic layer 300, so as in electrochromic device 1000
The combination of the upper appearance for realizing ink layer 10 and the appearance of electrochromic layer 300, further enriches electrochromism
The appearance of device 1000.
According to an embodiment of the invention, the light transmission rate of ink layer 10 is not more than 5%.Thus, it is possible to preferably cover not
Transparent connecting line.Specifically, the light transmission rate of ink layer 10 can be between 1%-5%, thus, on the one hand, can be preferably
Opaque connecting line is covered, the open defect of electrochromic device caused by opaque connecting line is avoided；On the other hand, the ink
The color and the appearances such as textured pattern of layer 10, can with electricity of the ink layer 10 far from 100 side of the first substrate is set
The color effects of mutagens chromatograph 300 are overlapped, and further enrich the appearance of electrochromic device.One according to the present invention
Specific embodiment, can be in advance in ink layer 10 of the side of the first substrate 100 setting with the first color, in a certain voltage shape
Under state, the second color is presented in electrochromic layer 300, then the region 100A on the first substrate 100 provided with ink layer 10 shows
First color and the second color addition effect (i.e. third color), the region 100B of not set ink layer 10 show electrochromism
Second color of layer 300, realizes the color hitting effect of third color and the second color on electrochromic device 1000 as a result,；
Also, with the change of voltage, when the color change of electrochromic layer 300, the area of ink layer 10 is provided on the first substrate 100
Domain 100A can show each color and the superimposed color effects of ink layer 10, to make the region provided with ink layer 10
Different color effects can also be presented with the variation of voltage in 100A, and are provided with the region 100A of ink layer 10 and do not set
Color hitting effect abundant can be presented in the region 100B for setting ink layer 10, be greatly enriched the appearance effect of electrochromic device
Fruit.
According to an embodiment of the invention, the setting position of ink layer 10 is not particularly limited, as long as the first wiring can be covered
Region 210.Specifically, ink layer 10 can only cover the first wire area 210, the first wire area can also be covered
210 and first not set connecting line on transparency conducting layer 200 partial region, those skilled in the art can according to need reality
Existing appearance is designed, and as a result, by adjusting size and the setting position of ink layer 10, can easily be controlled electroluminescent
Color change interval and color changeable effect on color-changing device 1000.For example, forming electronic equipment using the electrochromic device 1000
Appearance shell when, ink layer 10 can cover on the first substrate 100 in addition to LOGO (trade mark) mark (not shown) other than
All areas, as a result, on electrochromic device 1000 be provided with LOGO label region electrochromic layer 300 can be presented
Color, other regions can be presented the appearances such as color and the pattern of ink layer 10, or present ink layer 10 with it is electroluminescent
The color and the appearances such as pattern that photochromic layer 300 is superimposed, to further improve electrochromic device (such as electronics
Apparatus casing) appearance.
According to an embodiment of the invention, the specific material of electrochromic layer 300 is not particularly limited, it can be inorganic matter,
It may be organic matter.For example, the inorganic electrochromic material for forming electrochromic layer 300 can be tungstic acid (WO3), it can
Think vanadic anhydride (V2O5) etc.；The organic matter for forming electrochromic layer 300 can be small organic molecule electrochromic material,
Such as bipyridyl etc.；The organic matter for forming electrochromic layer 300 may be conducting polymer, such as can be polythiophene, poly-
Aniline, polypyrrole, polycarbazole, poly- furans, Polyindole derivatives etc..
According to an embodiment of the invention, the specific material for forming the second conductive layer 400 is not particularly limited, led as long as having
Electrical property is also possible to be led by opaque specifically, the second conductive layer 400 can be and be formed by transparent conductive material
What electric material was formed.According to an embodiment of the invention, the second wire area 410 is reserved on the second conductive layer 400 with reference to Fig. 3,
When the second conductive layer 400 be to be formed by transparent conductive material when (such as when being formed by tin indium oxide or indium zinc oxide), ink layer
10 cover orthographic projection of second wire area 410 on the first substrate 100 in the orthographic projection on the first substrate 100.In other words,
When the second conductive layer 400 is formed by transparent conductive material, ink layer 10 can be connect the first wire area 210 and second
Connecting line in line region 410 is covered, and is lacked so as to avoid the appearance of electrochromic device caused by opaque connecting line
It falls into, improves the appearance of electrochromic device.
It should be strongly noted that shown in the drawings is only an example according to the present invention, to illustrate all parts
Between connection relationship, should not be construed as limiting the invention.For example, the connecting line 600 in figure, as long as can be with ITO
Realize electrical connection, and on the direction perpendicular to substrate, the part that connecting line 600 connects is covered by ink layer.Namely
It is to say, connecting line 600 not necessarily extends to the inside of ITO layer, by such as conductive silver paste, can also lead in the side wall of ITO layer
The modes such as electric glue realize electrical connection.
According to an embodiment of the invention, when the second conductive layer 400 is formed by transparent conductive material, it can be in the second substrate
Different grain effects is arranged in the ink of 500 surface printing different colours, to block the component in electronic equipment, and energy
Enough effects further enriching electrochromic device and finally presenting.According to an embodiment of the invention, the second conductive layer 400 can be with
It is formed for opaque conductive material, specifically, can be the metal materials such as aluminium, copper.When the second conductive layer 400 is by metal material
When formation, one side metal material has good electric conductivity, and another aspect metal material is opaque material, utilizes as a result,
When the electrochromic device forms the shell of electronic equipment, it can be blocked in mobile terminal when voltage is not added in electrochromic device
Component, guarantee the appearance of mobile terminal.Also, when the second conductive layer 400 is formed by opaque conductive material, the
Connecting line in two wire areas 410 can be blocked by the second opaque conductive layer 400, as a result, in the second wire area 410
Connecting line will not show through electrochromic layer 300, the first transparency conducting layer 200 and the first substrate 100, and cause
The defect of electrochromic device (such as the casting of electronic device) appearance.
According to an embodiment of the invention, the first substrate 100 by transparent material for example glass is formed when, the second substrate 500 can
Being formed by transparent material or opaque material, specifically, the second substrate 500 is also possible to by materials such as glass, plastic cement
What material was formed.Specifically, the second substrate 500 can be and be formed by plastic film flexible, for example, can be poly- terephthaldehyde
Sour glycol ester film or polycarbonate membrane.The thickness for the second substrate 500 that flexible material is formed as a result, is smaller, can be thinned
The integral thickness of electrochromic device, and the efficiency for plating on flexible material the second conductive layer 400 is higher, cost is relatively low.
According to an embodiment of the invention, the electrochromic device can also include connecting line 600, connecting line with reference to Fig. 4
600 are connected with the first transparency conducting layer 200 and the second conductive layer 400.Thus, it is possible to transparent be led by control circuit to first
Electric layer 200 and the second conductive layer 400 apply voltage, and control electrochromic layer 300 changes colour.It is electroluminescent as a result, when voltage changes
Photochromic layer 300 can produce color changeable effect, enrich the appearance of electrochromic device.
According to an embodiment of the invention, the connecting line 600 formed can also be copper adhesive tape, copper adhesive tape is to far from electrochromism
The side of layer 300 extends, and copper adhesive tape, close to the edge of 300 side of electrochromic layer, (first thoroughly for the conductive layer being connect with it
Bright conductive layer 200 and the second conductive layer 400) edge between have overlapping region.Thus, it is possible to realize electricity using copper adhesive tape
Conduction.Also, the overlapping region can be covered by mentioned-above ink layer 10, not influence the outer of electrochromic device
It sees.
Other embodiments according to the present invention, connecting line can also be metal contact wires, be connected metal by insulating cement
Wiring and conductive layer connect.Specifically, insulating cement can be arranged between the first substrate and the second substrate, and around
It is located at the periphery of the first transparency conducting layer, electrochromic layer, the second conductive layer, metal contact wires pass through insulating cement and extend to absolutely
Side of the edge glue far from electrochromic layer.Thus, it is possible to realize electrical conduction by metal contact wires.Tool about metal contact wires
Body material is not particularly limited, as long as can be realized electrical conduction, those skilled in the art can carry out as the case may be
Design.For example, according to a particular embodiment of the invention, metal contact wires can be copper connecting line.
According to an embodiment of the invention, with reference to Fig. 5, which, which may further include, is set gradually
Electrolyte layer 700 and ion storage layer 800.Electrolyte layer 700 and ion storage layer 800 are located at 300 He of electrochromic layer
Between second conductive layer 400, wherein electrolyte layer 700 is located at close to the side of electrochromic layer 300.Reality according to the present invention
Example is applied, when electrochromic layer 300 is formed by organic material, electrolyte layer 700 can be to be made of colloidal material.According to
The embodiment of the present invention, the ion in electrolyte layer 700 can be adulterated with the electrochromic material in electrochromic layer 300
Or dedoping, so that color change occurs for electrochromic layer 300.
According to an embodiment of the invention, the thickness of ion storage layer 800 can be Nano grade.Thus, it is possible to make electroluminescent
Color change occurs for photochromic layer.According to an embodiment of the invention, certain color is presented in the ion in ion storage layer 800, when
When the thickness of ion storage layer 800 is thicker, the color of ion storage layer 800 is deeper, when voltage is not added in electrochromic device from
The color of sub- storage layer 800 will penetrate electrolyte layer 700, electrochromic layer 300, the first transparency conducting layer 200 and first
Substrate 100 influences the color changeable effect of electrochromic device so that a degree of color is presented in electrochromic device.
According to an embodiment of the invention, when the layers of material for forming the electrochromic device includes semisolid material, it should
Electrochromic device can also include insulating cement.Thus, it is possible to be packaged to electrochromic device, electrochromic device is improved
Leakproofness, make electrochromic device that good appearance be presented in making alive.According to an embodiment of the invention, insulating cement
It can be adhesive tape.Position about insulating cement is not particularly limited, as long as realizing said effect, those skilled in the art can
To be designed as the case may be.For example, according to an embodiment of the invention, insulating cement can be set in the first substrate and
Between two substrates, and it is wound around the periphery of electrochromic layer, electrolyte layer and ion storage layer, and to electrochromic layer, electricity
Solution matter layer and ion storage layer are sealed.Other embodiments according to the present invention, insulating cement setting the first substrate with
And second between substrate, and is wound around the first transparency conducting layer, electrochromic layer, electrolyte layer, ion storage layer and second
The periphery of conductive layer, and electrochromic layer, electrolyte layer, ion storage layer are sealed.Thus, it is possible to seal simultaneously insulated electro
Mutagens chromatograph prevents interference of the external environment to it.
In summary, electrochromic device according to an embodiment of the present invention may be implemented to enrich using electrochromic material
Appearance；Opaque connecting line etc. can be easily covered by the way that ink layer is arranged, it can be to avoid opaque connecting line band
The open defect come；And the ink layer itself has the appearances such as certain color and pattern texture, the ink layer
The appearances such as color can also be combined and be superimposed with the color effects of electrochromic layer, to further enrich electroluminescent
The appearance of color-changing device has appearance abundant using the appearance shell for the electronic equipment that the electrochromic device is formed.
In another aspect of the invention, the invention proposes a kind of methods for preparing electrochromic device.This method can
Easily to prepare the good electrochromic device of appearance.According to an embodiment of the invention, the electroluminescent change of this method preparation
Color device can be mentioned-above electrochromic device, and the electrochromic device of this method preparation can have front as a result,
Whole feature and advantage possessed by the electrochromic device, details are not described herein.According to an embodiment of the invention, ginseng
Fig. 6 is examined, this method comprises:
S100: ink layer is formed in the side of the first substrate
In this step, ink layer is formed in the side of the first substrate, ink layer covers the part of the surface of the first substrate.Tool
Body, ink layer can be formed by way of printing ink on the first substrate.According to an embodiment of the invention, the first substrate
It can be mentioned-above first substrate, for example, the first substrate is formed by transparent material, it can be glass or plastic cement.Root
According to the embodiment of the present invention, the first substrate can be the appearance shell of electronic equipment.According to an embodiment of the invention, ink layer can
Think mentioned-above ink layer, type, setting position of ink layer etc. can be with previously described identical, such as ink layers
It can be and formed by high temperature resistant ink, such as ink layer can have appearances such as certain color, texture, pattern etc.,
Details are not described herein.
S200: electrochromic cells are formed
In this step, electrochromic cells are formed far from the side of the first substrate in ink layer.Reality according to the present invention
Example is applied, electrochromic cells include the first transparency conducting layer, electrochromic layer and the second conductive layer, and in the first electrically conducting transparent
The first connecting line is arranged in the first wire area in layer, and the second connecting line is arranged in the second wire area in the second conductive layer,
Wherein, the orthographic projection of the first wire area on the first substrate, positioned at the positive throwing of mentioned-above ink layer on the first substrate
In the domain of shadow zone.In other words, ink layer covers the first wire area.According to an embodiment of the invention, the tool of electrochromic cells
Body generation type is not particularly limited, those skilled in the art can according to the specific material of electrochromic layer (such as inorganic matter,
Small organic molecule, conducting polymer) the suitable preparation process of selection.According to a particular embodiment of the invention, with reference to Fig. 7, the party
Method may further include:
S10: the first transparency conducting layer is formed
In this step, the side in ink layer far from the first substrate and on the first substrate towards ink layer side
Form the first transparency conducting layer.According to an embodiment of the invention, the first transparency conducting layer can be transparent for mentioned-above first
Conductive layer, specifically, can for tin indium oxide or nano silver etc., the first transparency conducting layer can have good electric conductivity with
And higher transparency.According to an embodiment of the invention, the first transparency conducting layer can be formed by way of deposition.It needs
Bright, currently used deposition on the first substrate is formed in the method for the first transparency conducting layer, such as on the first substrate
When depositing indium tin oxide (ITO), depositing temperature is generally 300-450 degrees Celsius.And according to the method for the embodiment of the present invention in, by
In having printed ink layer on the first substrate in advance, the high temperature resistance of ink layer is poor, therefore, implementation according to the present invention
Example, in side of the ink layer far from the first substrate and when depositing ITO on the first substrate, depositing temperature is lower, such as deposits
Temperature is not more than 350 degrees Celsius, also, in preceding step when formation ink layer, used ink is high temperature resistant ink, because
This, it is ensured that when depositing ITO on ink layer, it will not influence the performance of ink layer, while the ITO layer deposited also has preferably
Performance.
According to an embodiment of the invention, the thickness for the first transparency conducting layer that deposition obtains is not less than 30nm, thus, it is possible to
Avoid because the thickness of the first transparency conducting layer it is too small caused by it is bad.Specifically, the thickness of the first transparency conducting layer can be 30-
250nm can be 150-250nm, and the first transparency conducting layer with the thickness has preferable service performance as a result,.
According to an embodiment of the invention, deposition rate can be 5-15nm/min, thus, it is possible to forming properties good the
One transparency conducting layer will cause the first layer at transparent layer out-of-flatness, uniform of deposition when deposition rate is excessive or too small
Property is bad etc. bad.Specifically, deposition rate can be 7-10nm/min.A specific embodiment according to the present invention,
When forming the first transparency conducting layer on one substrate, sedimentation time is 15-20 minutes, the thickness of the first transparency conducting layer deposited
Degree is 150nm, and depositional area can be 150mm*70mm.
According to an embodiment of the invention, being formed after the first transparency conducting layer, this method be may further include: first
The first connecting line is arranged in the first wire area in transparency conducting layer.According to an embodiment of the invention, the position of the first wire area
Set and size can with it is previously described identical, details are not described herein；The specific material and set-up mode of first connecting line
Can with it is previously described identical, details are not described herein.First connecting line is set in the first wire area, first connecting line
It can be electrically connected the first transparency conducting layer and power supply, and first connecting line is usually to be formed by opaque conductive material
, such as copper, aluminium etc..According to an embodiment of the invention, the orthographic projection of the first wire area on the first substrate, is located at ink layer
In orthographic projection region on the first substrate.Mentioned-above ink layer can cover the first opaque connecting line as a result,
Avoid can with open defect, and there are also the appearances such as certain color, pattern for the ink layer itself, to further increase institute
The appearance of the electrochromic device of preparation.
S20: electrochromic layer is formed
In this step, is formationed has on the first substrate of the first transparency conducting layer in front, formation electrochromism
Layer.According to an embodiment of the invention, the material for forming electrochromic layer is not particularly limited, specifically, electrochromic material can
Think inorganic matter, such as can be tungstic acid, vanadic anhydride etc.；It can be organic matter etc., for example, electrochromic material can
Think small organic molecule, such as bipyridyl；It can be conducting polymer, such as polythiophene, polyaniline, polypyrrole.According to the present invention
Embodiment, electrochromic material be inorganic matter when, can first by inorganic matter nano particle dispersion in a solvent, then using print
Brush method prepares electrochromic layer；Specifically, when electrochromic material is small organic molecule electricity can be formed using vacuum filling method
Mutagens chromatograph；Specifically, can use electropolymerization, thermal polymerization, coating and light by the electrochromic layer that conducting polymer is formed
The methods of polymerization preparation.The preparation method multiplicity of electrochromic layer as a result, those skilled in the art can be according to electrochromic layer
Specific material selected.
S30: the second conductive layer is formed in the side of the second substrate
In this step, the second conductive layer, and the second wiring in the second conductive layer are formed in the side of the second substrate
The second connecting line is arranged in region.According to an embodiment of the invention, the second substrate can be mentioned-above second substrate, second is led
Electric layer can be mentioned-above second conductive layer, and the second substrate can be to be formed by transparent material or opaque material.
For example, the second conductive layer can be and be formed by transparent conductive material, specifically, can be tin indium oxide or nano silver.Root
According to the embodiment of the present invention, the specific material and set-up mode of the second connecting line can be identical as previously described connecting line,
Details are not described herein.Thus, it is possible to apply voltage, control to the first transparency conducting layer and the second conductive layer by control circuit
Electrochromic layer discoloration.According to an embodiment of the invention, ink layer exists when the second conductive layer is formed by transparent conductive material
Orthographic projection on first substrate covers the orthographic projection of the second wire area on the first substrate.In other words, the second wire area
It also is located within the ink layer coverage area.When the second conductive layer is formed by transparent conductive material, in preceding step
When forming ink layer on the first substrate, ink layer can at least cover the first wire area and the second wire area in the first lining
The corresponding position of orthographic projection on bottom, the ink layer can cover the first connecting line and the second connecting line as a result, from
And the open defect of electrochromic device caused by opaque connecting line is avoided, improve the appearance of electrochromic device.
According to an embodiment of the invention, can be arranged not on the second substrate when the second substrate is formed by transparent material
The ink of same grain effect or printing different colours, when electrochromic device appearance shell for electronic equipment,
The component in mobile terminal can be blocked when voltage is not added in electrochromic device, guarantee the appearance of mobile terminal.Root
According to other embodiments of the invention, the second conductive layer can also be formed for opaque conductive material, specifically, can be
The metal materials such as aluminium, copper.When the second conductive layer is formed by metal material, one side metal material has good electric conductivity,
Another aspect metal material is opaque material, can be blocked in mobile terminal when voltage is not added in electrochromic device as a result,
Component, guarantee the appearance of mobile terminal.Also, when the second conductive layer is formed by opaque conductive material, second
Connecting line in wire area can be blocked by the second opaque conductive layer, after being subsequently formed electrochromic device as a result, the
Connecting line in two wire areas will not be showed through electrochromic layer, the first transparency conducting layer and the first substrate, and
Cause the defect of electrochromic device (such as casting of electronic device) appearance.
According to an embodiment of the invention, the second conductive layer can be formed by way of deposition, when the second substrate is glass
When, the second conductive layer is formed on the second substrate that glass is formed can be using high temperature deposition, and temperature is higher than 400 DEG C, when second
When substrate is plastic cement, the second conductive layer is formed on the second substrate that plastic cement is formed can be lower than 100 using low temperature depositing, temperature
℃.Thus, it is possible to form the second conductive layer using simple technique.Need to illustrate when, since the second conductive layer is directly heavy
Product is on the second substrate, there is no need to consider the problems of that the second conductive layer deposition temperature is excessively high to impact ink layer, the
The depositing temperature of two conductive layers can be higher.
S40: will be formed with the first substrate of electrochromic layer and be formed with the second substrate attaching of the second conductive layer, so as to
Form the electrochromic device
In this step, the first substrate for being formed with electrochromic layer and the second substrate for being formed with the second conductive layer are pasted
It closes, the second conductive layer is in contact with electrochromic layer far from the side of the first transparency conducting layer, to form the electrochromism
Device.According to an embodiment of the invention, encapsulation process can with through the following steps that realize: set in the periphery of electrochromic layer
Insulating cement is set, and the first substrate and the second substrate are arranged oppositely, is connected by insulating cement.Thus, it is possible to seal simultaneously insulated electro
Mutagens chromatograph prevents interference of the external environment to it.
According to an embodiment of the invention, formed after the first transparency conducting layer and electrochromic layer on the first substrate,
The second conductive layer first can be formed on the second substrate (as previously described), can also be directly formed in the second conductive layer electroluminescent
Side of the photochromic layer far from the first transparency conducting layer, those skilled in the art can close according to the material etc. of electrochromic layer
Reason selection.Specifically, when electrochromic layer is formed by inorganic matter, formed after ink layer on the first substrate, it can be the
The first transparency conducting layer, electrochromic layer, the second conductive layer and the second substrate are sequentially formed on one substrate.
According to an embodiment of the invention, this method may further include: forming ion storage layer and form electrolyte
Layer.According to an embodiment of the invention, the ion storage layer and electrolyte layer can for mentioned-above ion storage layer and
Electrolyte layer, details are not described herein.According to an embodiment of the invention, electrolyte layer can prevent the negative ions of migration from quickly converging
It is poly-, to further increase the stability of electrochromic layer discoloration.According to some embodiments of the present invention, ion storage can be with
It is formed in side of second conductive layer far from the second substrate, electrolyte layer can be formed in ion storage layer far from the second conductive layer
Side, then by electrochromic layer on the electrolyte layer and the first substrate on the second substrate far from the first transparency conducting layer one
Side is in contact fitting, to form electrochromic device；Other embodiments according to the present invention, can also be directly by electrolyte
Layer is formed in side of the electrochromic layer far from the first transparency conducting layer, and ion storage layer is formed in electrolyte layer far from electroluminescent
The side of photochromic layer, to form electrochromic device.
According to a particular embodiment of the invention, when electrochromic layer is formed by conducting polymer, spin coating, leaching can be passed through
Painting, roller coating, blade coating, dip-coating, spraying or silk-screen form ion storage layer, can be stored up by way of silk-screen printing in ion
The uniform coated electrolyte layer material in side of the layer far from the second conductive layer is deposited, to obtain electrolyte layer；Tool according to the present invention
Body embodiment can be formed when electrochromic layer is formed by inorganic matter (such as tungstic acid) using the method for magnetron sputtering
Ion storage layer and electrolyte layer；According to a particular embodiment of the invention, when electrochromic layer (such as is joined by small organic molecule
Pyridine) when being formed, electroluminescent change can be formed by the way of vacuum filling without additional preparation ion storage and electrolyte layer
Chromatograph.
Type about insulating cement is not particularly limited, for example, according to an embodiment of the invention, insulating cement can be insulation
The thickness of adhesive tape, insulating tape is consistent with the sum of the thickness of electrochromic layer, electrolyte layer and ion storage layer.As a result,
The sealing to electrochromic layer, electrolyte layer and ion storage layer may be implemented.Other embodiments according to the present invention, absolutely
Insulation can also be arranged by mode for dispensing glue in the periphery of the first transparency conducting layer and the second conductive layer for glue in edge glue
Glue realizes the sealing to electrochromic layer, electrolyte layer and ion storage layer.
It should be strongly noted that the first transparency conducting layer and electrochromism can first be set gradually on the first substrate
Layer, then set gradually on the second substrate the second conductive layer (or the second conductive layer of setting, ion storage layer and electrolyte
Layer)；Can also first be set gradually on the second substrate the second conductive layer (or setting the second conductive layer, ion storage layer and
Electrolyte layer), the first transparency conducting layer and electrochromic layer are then set gradually on the first substrate.In other words, it is formed
The sequence of the first substrate and the second substrate with each layer structure is not particularly limited, as long as before encapsulation, serving as a contrast at two
The structure needed to form is respectively formed on bottom.
In still another aspect of the invention, the invention proposes a kind of electronic equipment.According to an embodiment of the invention, with reference to figure
8, which includes: mentioned-above electrochromic device 1000, control circuit (not shown) and screen
(not shown), the control circuit are used for the operating status according to electronic equipment 1100, and control electrochromic device 1000 becomes
Color, screen is for showing information.The electronic equipment has whole feature possessed by mentioned-above electrochromic device as a result,
And advantage, details are not described herein.Generally speaking, the appearance of the electronic equipment is abundant, and expressive force is strong.
According to an embodiment of the invention, the control circuit can control electroluminescent according to the operating status of electronic equipment 1100
The voltage of color-changing device, so that electrochromic layer changes colour.According to an embodiment of the invention, electrochromic device 1000 can be with
For the appearance shell of electronic equipment 1100, it is hereby achieved that the electronic equipment with appearance variable cover.
Illustratively, electronic equipment can be various types of departments of computer science that are mobile or portable and executing wireless communication
Any one of equipment of uniting.Specifically, electronic equipment can be mobile phone or smart phone (for example, being based on iPhone
TM, the phone based on Android TM), portable gaming device (such as Nintendo DS TM, PlayStation
Portable TM, Gameboy Advance TM, iPhone TM), laptop computer, PDA, portable Internet appliance, sound
Happy player and data storage device, other handheld devices and such as wrist-watch, In-Ear Headphones, pendant, headphone
It can also be other wearable devices (for example, such as electronic glasses, electronics clothes, electronics bracelet, electronics Deng, electronic equipment
Necklace, electronics tatoo, the headset equipment (HMD) of electronic equipment or smartwatch).
Electronic equipment can also be that any one of multiple electronic equipments, multiple electronic equipments include but is not limited to honeycomb
Phone, smart phone, other wireless telecom equipments, personal digital assistant, audio player, other media players, music note
It records device, video recorder, camera, other medium recorders, radio, Medical Devices, vehicle transport instrument, calculator, may be programmed
Remote controler, pager, laptop computer, desktop computer, printer, netbook computer, personal digital assistant (PDA), just
Formula multimedia player (PMP), Motion Picture Experts Group (MPEG-1 or MPEG-2) audio layer 3 (MP3) player are taken, it is portable
Medical Devices and digital camera and combinations thereof.
In some cases, electronic equipment can execute multiple functions and (for example, playing music, show video, store picture
And send and receive call).If desired, electronic equipment can be such as cellular phone, media player, other hands
The portable device of holding equipment, watch equipment, pendant equipment, receiver device or other compact portable equipment.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (15)
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