CN110376818A - Electrochromic device and its control method, electronic equipment and storage medium - Google Patents
Electrochromic device and its control method, electronic equipment and storage medium Download PDFInfo
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- CN110376818A CN110376818A CN201910667653.8A CN201910667653A CN110376818A CN 110376818 A CN110376818 A CN 110376818A CN 201910667653 A CN201910667653 A CN 201910667653A CN 110376818 A CN110376818 A CN 110376818A
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- electrochromic
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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
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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
-
- 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
Abstract
This application discloses a kind of control method of electrochromic device, electrochromic device, electronic equipment and storage mediums.Electrochromic device includes electrochromic material and the electrode pair that is electrically connected with electrochromic material.Control method includes: to apply first voltage to electrochromic material so that electrochromic material colours；Apply second voltage so that electrochromic material fades to electrochromic material after electrochromic material coloring, second voltage is opposite with the polarity of first voltage；Apply tertiary voltage so that the transmitance of electrochromic material is higher than setting value to electrochromic material after applying second voltage to electrochromic material and continuing preset duration, the polarity of tertiary voltage and first voltage is on the contrary, the amplitude of tertiary voltage is less than the amplitude of second voltage.Control method, electrochromic device, electronic equipment and the storage medium of the application while quick fade in application tertiary voltage after first reversely applying second voltage for a period of time due to that can prevent from restaining.
Description
Technical field
This application involves consumer electronics technical fields, more specifically, are related to a kind of electrochromic device and its control
Method, electronic equipment and storage medium.
Background technique
In the related art, reversible color change can occur under the action of extra electric field for electrochromic device, wherein
Electrochromic device can make electrochromic material coloring to change by the electrode to electrochromic material two sides to voltage is applied
Become transmitance, electrochromic material is switched between pellucidity and colored state.After electrochromic material coloring
Can by disconnect electrode to, be shorted electrode pair or to electrode to apply back-pressure so that electrochromic material is faded, but fade speed
It spends slower.How electrochromic device is controlled to realize that electrochromic material quickly fades and become technical problem to be solved.
Summary of the invention
The application embodiment provides a kind of electrochromic device and its control method, electronic equipment and storage medium.
For the control method of the application embodiment for controlling electrochromic device, the control method includes: to electroluminescent
Off-color material applies first voltage so that the electrochromic material colours；To the electricity after electrochromic material coloring
Off-color material is caused to apply second voltage so that electrochromic material colour fading, the pole of the second voltage and the first voltage
Property is opposite；With after applying the second voltage to the electrochromic material and continuing preset duration to the electrochromic material
Apply tertiary voltage so that the transmitance of the electrochromic material is higher than setting value, the tertiary voltage and the first voltage
Polarity on the contrary, the tertiary voltage amplitude be less than the second voltage amplitude.
The electrochromic device of the application embodiment include drive module, electrochromic material and with the electrochromism
The electrode pair of material electrical connection, the drive module connect the electrode pair, and the drive module is used for the electrode to applying
Add first voltage so that the electrochromic material colours, and is used for after electrochromic material coloring to the electrode pair
Apply second voltage so that the electrochromic material fades, the polarity of the second voltage and the first voltage is on the contrary, institute
Drive module is stated to be also used to continuing after the first duration Xiang Suoshu after preset duration to the second voltage is applied to the electrode
Electrochromic material apply tertiary voltage so that the electrochromic material transmitance be higher than setting value, the tertiary voltage with
The polarity of the first voltage is on the contrary, the amplitude of the tertiary voltage is less than the amplitude of the second voltage.
The electronic equipment of the application embodiment includes electrochromic device described in camera and above embodiment, institute
It states camera to be correspondingly arranged with the electrochromic device, the case where the transmitance of the electrochromic material is higher than setting value
Under, the camera can pass through the electrochromic device acquisition image.
The electronic equipment of the application embodiment includes electrochromic device, processor, memory and is stored in memory
Computer program that is upper and can running on a processor realizes above-mentioned implementation when the processor executes the computer program
The control method of mode.
The storage medium of the application embodiment is stored with computer program, when the computer program is executed by processor
Realize the control method of above embodiment.
It, can be in electrochromism in the control method of present embodiment, electrochromic device, electronic equipment and storage medium
When material fades, reversed second voltage first is applied to electrochromic material so that electrochromic material quick color-changing, at one section
Between after apply lesser tertiary voltage to electrochromic material again and avoided so that electrochromic material reaches certain transmitance
The problem of electrochromic material duplicates coloring, and electrochromic material is made to realize quick color-changing.
The additional aspect and advantage of presently filed embodiment will be set forth in part in the description, partially will be from following
Description in become obvious, or recognized by the practice of presently filed embodiment.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the application is from combining in description of the following accompanying drawings to embodiment by change
It obtains obviously and is readily appreciated that, in which:
Fig. 1 is the flow diagram of the control method of the application embodiment.
Fig. 2 is the module diagram of the electrochromic device of the application embodiment.
Fig. 3 is the floor map of the electronic equipment of the application embodiment.
Fig. 4 is the structural schematic diagram of the electrochromic device of the application embodiment.
Fig. 5 is that the electrochromic material of the application embodiment applies the transmitance variation schematic diagram of backward voltage.
Fig. 6 is another module diagram of the electrochromic device of the application embodiment.
Fig. 7 is the second voltage variation schematic diagram of the control method of the application embodiment.
Fig. 8 is another variation schematic diagram of second voltage of the control method of the application embodiment.
Fig. 9 is the structural schematic diagram of the electronic equipment of the application embodiment.
Figure 10 is another structural schematic diagram of the electronic equipment of the application embodiment.
Figure 11 is the module diagram of the electronic equipment of the application embodiment.
Main element symbol description:
Electronic equipment 100, electrochromic device 10, electrochromic material 11, electrode are to the 122, second electricity of 12, first electrode
Pole 124, drive module 13, temperature sensor 14, glue frame 15, substrate 16, camera 20, rear cover 30, processor 40, memory
50。
Specific embodiment
Presently filed embodiment is described below in detail, the example of embodiment is shown in the accompanying drawings, wherein identical or class
As label indicate same or similar element or element with the same or similar functions from beginning to end.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the application, and should not be understood as the limitation to the application.
Fig. 1 and Fig. 2 are please referred to, the control method of the application embodiment is for controlling electrochromic device 10, electroluminescent change
Color device 10 includes electrochromic material 11 and the electrode that is electrically connected with electrochromic material 11 to 12, and control method includes:
Step S10 applies first voltage to 12 so that electrochromic material 11 colours to electrode；
Step S20 applies second voltage so that electrochromic material to 12 to electrode after the coloring of electrochromic material 11
11 fade；With
Step S30 applies tertiary voltage to 12 to electrode after 12 application second voltages are continued with preset duration to electrode
So that the transmitance of electrochromic material 11 is higher than setting value.
Wherein, the polarity of second voltage and first voltage on the contrary, the polarity of tertiary voltage and first voltage on the contrary, third is electric
The amplitude of pressure is less than the amplitude of second voltage.
Specifically, electrochromic device 10 further includes that drive module 13, step S10, step S20 and step S30 can be by
Drive module 13 is realized.In other words, drive module 13 can be used for applying first voltage so that electrochromism to 12 to electrode
Material 11 colours, and for applying second voltage so that electrochromic material to 12 to electrode after the coloring of electrochromic material 11
11 fade, and for electrode to 12 application second voltages continue after preset duration to electrode to 12 application tertiary voltages with
The transmitance of electrochromic material 11 is set to be higher than setting value to bleach.
It is appreciated that electrochromic device 10 can apply voltage to electrochromic material 11 to 12 by electrode, namely
It is to say, in the description of the present application, 12 application voltages can be understood as applying voltage to electrochromic material 11 to electrode.Phase
Ying Di, be shorted electrode to may be implemented be shorted electrochromic material, disconnect electrode to may be implemented disconnect electrochromic material with
Make electrode to and electrochromic material disconnect with circuit.
Referring to Fig. 3, it includes camera 20 and the application embodiment that the application embodiment, which provides a kind of electronics to set 100,
Electrochromic device 10, camera 20 is correspondingly arranged with electrochromic device 10, high in the transmitance of electrochromic device 10
In the case where setting value, camera 20 can pass through electrochromic device 10 and acquire image.
Electrochromic device 10 can switch between colored state and pellucidity, camera 20 in electronic equipment 100
It is correspondingly arranged, camera 20 can be covered when electrochromic device 10 colours with electrochromic device 10；And in electricity
When 10 transmitance of mutagens color device is higher than setting value, electrochromic device 10 is in pellucidity, at this point, camera 20 can be saturating
It crosses electrochromic device 10 and acquires image.
It is appreciated that electrochromic device 10 is needed from coloring when electronic equipment 100 opens camera 20 and acquires image
State is switched to pellucidity, and for capturing, and takes a picture, the scenes such as recorded video, electrochromic device 10 is needed to mention rapidly
High transmittance, which is realized, to fade, and is accordingly changed into pellucidity.
In some embodiments, electronic equipment 100 can be mobile phone, tablet computer, laptop, Intelligent bracelet,
Wearable device etc..In the illustrated embodiment, electronic equipment 100 is mobile phone.
In the electrochromic device 10 and control method of the application embodiment, it can fade in electrochromic material 11
When, backward voltage first is applied so that 11 quick color-changing of electrochromic material, again to electricity after a period of time to electrochromic material 11
It causes off-color material 11 to apply lesser tertiary voltage, so that electrochromic material 11 reaches certain transmitance and bleach, keeps away
The problem of electrochromic material 11 duplicates coloring is exempted from, and electrochromic material 11 is made to realize quick color-changing.
It should be noted that term " first ", " second " are only used for description mesh in the description of presently filed embodiment
, it is not understood to indicate or imply relative importance or implicitly indicates the quantity of indicated technical characteristic.It limits as a result,
Surely there is " first ", the feature of " second " can explicitly or implicitly include one or more feature.
In some embodiments, electrochromic material 11 can be organic electrochromic material 11 or inorganic electrochromic
Material 11.In the example of the application, electrochromic material 11 is organic electrochromic material 11.
Specifically, Fig. 4 show the stepped construction of electrochromic device 10, at this point, electrochromic device 10 may include layer
First electrode 122, photochromic layer 112 and the second electrode 124 of folded setting, i.e. first electrode 122 and second electrode 124 are respectively set
In the two sides of electrochromic material 11.Photochromic layer 112 can be encapsulated in first electrode 122 and second electrode 124 by glue frame 15
Between, applying voltage to first electrode 122 and second electrode 124 can be such that photochromic layer 112 colours.First electrode 122 and second
Electrode 124 constitutes the electrode of electrochromic device 10 to 12.
Further, side and second electrode 124 of the first electrode 122 far from electrochromic layer 112 are far from electrochromism
The side of layer 112 can be respectively arranged with substrate 16, and substrate 16 can protect electrode and electrochromic material 11, guarantee electroluminescent change
The reliability of color device 10.Wherein, substrate 16 can be transparent substrate, in this way, electrochromic device 10 in the clear state may be used
Keep preferable optical characteristics.Transparent substrate can be glass, PET etc..
Specifically, first electrode 122 and second electrode 124 are made of transparent conductive material, in this way, transparent conductive material is real
There can be preferable optical characteristics while now electric connection, guarantee the transmitance of electrochromic device 10 in the clear state.
In one example, transparent conductive material can be tin indium oxide (Indium-Tin Oxide, ITO).
In the application embodiment, applying paste annular in shape is between two layers of electrode to form glue frame 15, so that glue
Cavity is collectively formed in frame 15 and two layers of electrode, spacer material (spacer) is arranged between twenty percent electrode then to increase electrochromism
The intensity of device 10.After glue coagulation forming to be sealed, it is electroluminescent to be formed that electrochromic material 11 is filled in the cavity of sealing
Electrochromic device 10.The specific forming process of electrochromic structure principle herein will within the scope of the understanding of those skilled in the art
No longer it is described in detail.
In one example, electrochromic material 11 may include aniline and purpurine, and material concentration is made with the dosage of purpurine
For calibration.Aniline has electron-donating group as anode material, and losing after electronics color from transparent becomes yellow；Purpurine conduct
Cathode material has electron-accepting group, and obtaining after electronics color from transparent becomes blue.
In some embodiments, the setting value of transmitance can be the numerical value between 75% to 90%.In this way, electroluminescent change
Color device 10 can keep preferable optical characteristics in the case where transmitance is higher than setting value.It should be noted that in this Shen
Please be in embodiment, the setting value of transmitance is less than electrochromic material 11, and not under voltage effect, institute is attainable maximum penetrates
Rate, namely less than the maximum transmission after electrochromic material 11 completely colour fading.In one example, electrochromic material 11
Transmitance reaches the maximum transmission after fading completely higher than the transmitance that preset value can be electrochromic material 11.
In the application embodiment, electrochromic material 11 by taking purpurine as an example, for take into account color change, color depth,
High contrast and lesser high state transmitance loss thoroughly, the design parameter of electrochromic device 10 can be as shown in table 1 below:
Table 1
It is appreciated that electrochromic material 11 colour after transmitance with to electrochromic material 11 apply alive amplitude
Correlation, in a certain range, electrochromic material 11 colour after transmitance with to electrochromic material 11 apply alive width
Value is positively correlated.To guarantee that lower coloring transmitance, first voltage can be 0.8V to 1.7V.Preferably, first voltage can
To be 0.9V.In this way, electrochromic device 10 can be made to reach lower transmitance, for example, making electrochromic device 10
Transmitance less than 30%, electrochromic device 10 may be implemented preferably to colour.
Aniline obtains electronics, purpurine betatopic during electrochromic material 11 fades, by being shorted or disconnecting electrode to making
When electrochromic material 11 fades, make that aniline obtains electronics, purpurine is lost using the difference of height of electrochromic material 11 current potential itself
Electronics, fading rate are relatively slow.It is quickly taken off in this way, backward voltage can be applied when electrochromic material 11 fades to realize
Color.
However, being continuously applied the backward voltage time to electrochromic material 11 during electrochromic material 11 fades
Too long meeting is so that electrochromic material 11 is restained.Pellucidity can not be finally switched to.
Further, at 25 DEG C of room temperature, the light transmission rate under different voltages of electrochromic material 11 is tested, to
When electrochromic material 11 applies alive lower, transmitance such as the following table 2 institute of the electrochromic material 11 for 550nm light
Show:
Table 2
| Voltage/V | Transmitance/% |
| 0 | 87.7 |
| 0.3 | 87.7 |
| 0.35 | 87.6 |
| 0.36 | 87.5 |
| 0.37 | 87.3 |
| 0.38 | 87.1 |
| 0.39 | 86.8 |
| 0.4 | 86.5 |
As shown in Table 2, at 25 DEG C of room temperature, the voltage magnitude applied to electrochromic material 11 is within the scope of 0-0.4V, electricity
The transmitance of off-color material 11 is caused to increase with voltage and reduce.Specifically, applying voltage magnitude to electrochromic material 11 is
When 0.35V, the transmitance of electrochromic material 11 starts to reduce namely electrochromic material 11 starts to colour.
For camera 20, when normal use, electrochromic material 11 for 550nm light transmitance generally not
Less than 85%.In this way, electrochromic device 10 does not influence camera 20 when applying voltage less than 0.4V to electrochromic material 11
Acquire image.
Therefore, when electrochromic material 11 fades, when first continuing first to the application of electrochromic material 11 second voltage
It, can be with while applying tertiary voltage to electrochromic material 11 after length can guarantee to hold 11 fading rate of electrochromic material
Avoid the application of second voltage time is too long electrochromic material 11 is caused to be restained,
In some embodiments, under room temperature, first voltage can be 0.8V to 1.5V, second voltage can be -1V to -
1.5V in this way, first voltage has after can guaranteeing electrochromic material coloring compared with low transmission, while avoiding overtension from leading
Material failure is caused, second voltage can make electrochromic material 11 quickly carry out back reaction, realize and quickly fade.
Correspondingly, preset duration can be configured according to the characteristic of electrochromic material 11, as shown in figure 5, electroluminescent change
Color material 11 applies always backward voltage after colouring, and is starting electrochromic material 11 in the △ t time after application second voltage
Transmitance continue to increase, electrochromic material 11 realize fade, however, electrochromic material can be made after a period of time △ t
11 restain.
In this way, preset duration is acted on by electrochromic material 11 when application second voltage from minimum transmitance to second voltage
The lower electrochromic material 11 time △ t used in the attainable maximum transmission of institute that fades is determined, thus in application second voltage
Preset duration in, quick color-changing may be implemented in electrochromic material 11.
To apply after second voltage continues preset duration in addition, there is error in control, electrochromic material 11 it is saturating
The rate of mistake fails to reach setting value, i.e., electrochromic material 11 does not fade or restains completely, at this point it is possible to apply to electrode to 12
Add tertiary voltage, further increase the transmitance of electrochromic material 12, is set so that the transmitance of electrochromic material 11 is higher than
Definite value.
In some embodiments, being continuously applied second voltage will not make the transmitance of electrochromic material 11 reach complete
Maximum transmission after colour fading.
It is appreciated that apply second voltage and fail to make the transmitance of electrochromic material 11 reach fade completely after most
In the case where big transmitance, after application second voltage continues preset duration, set even if the transmitance of electrochromic material 11 is higher than
Definite value will not be such that electrochromic material 11 restains 12 application tertiary voltages to electrode.
Particularly, in the case where applying second voltage and the transmitance of electrochromic material 11 cannot be made to be higher than setting value,
Tertiary voltage can be applied to 12 to electrode after applying second voltage, make electrochromic material 11 in the case where not restaining
Electronics transfer can be further realized, the transmitance of electrochromic material 11 is finally made to be higher than setting value to bleach.
In addition, control occur error make apply the second voltage time it is too short or too long when, electrochromic material 11
Transmitance may not reach setting value, can equally make electrochromic material 11 to 12 application second voltages to electrode at this time
Electronics transfer can be further realized in the case where not restaining, and be higher than the transmitance of electrochromic material 11
Setting value is to bleach.
It is appreciated that 11 transmitance of electrochromic material will not be made to influence camera 20 normally due to applying tertiary voltage
Work, therefore, the duration for applying tertiary voltage can be larger, e.g. 10s, it is ensured that the transmitance of electrochromic material 11
Higher than setting value.Under the second voltage of different amplitudes, the speed that electrochromic material 11 carries out back reaction is not also identical.Therefore,
The preset duration for applying second voltage to electrochromic material 11 is not also identical.
In some embodiments, the amplitude of second voltage and preset duration correspond.Specifically, applying third electricity
In the case where pressing duration 10s, the amplitude of second voltage and the corresponding relationship of preset duration are as shown in table 3 below:
Table 3
| Second voltage/V | Most short fading time/ms | Preset duration/ms |
| 1 | 570 | 290 |
| 1.1 | 540 | 260 |
| 1.2 | 555 | 250 |
| 1.3 | 525 | 230 |
| 1.4 | 525 | 220 |
| 1.5 | 525 | 200 |
As shown in Table 3, in the case where most short fading time is not much different, suitable second can be selected according to actual needs
Voltage and corresponding preset duration, to guarantee that electrochromic device 10 may be implemented quickly to fade.
Referring to Fig. 6, in some embodiments, electrochromic device 10 includes temperature sensor 14.Temperature sensor
14 for detecting the temperature of electrochromic material 11.Control method includes: to determine second according to the temperature of electrochromic material 11
Voltage and preset duration, wherein the temperature and preset duration inverse correlation of electrochromic material 11.
Specifically, drive module can be used for being determined according to the temperature of electrochromic material 11 second voltage and it is default when
It is long.
It is understood that electrochromic material 11 is at different temperature, the activity of material, such as ion, electronics
Conductivity and the mobility of electrochromic material 11 etc. can be influenced by temperature, so that the electrochemical reaction time is in the presence of poor
It is different.Specifically, 11 temperature of electrochromic material is lower, and the activity of electrochromic material 11 is lower, and the electrochemical reaction time is longer.
In one example, -15 DEG C of low temperature when, in the case where applying tertiary voltage duration 10s, the amplitude of second voltage
It is as shown in table 4 below with the corresponding relationship of preset duration:
Table 4
| Second voltage/V | Most short fading time/ms | Preset duration/ms |
| 1.3 | 1520 | 500 |
| 1.4 | 1440 | 500 |
| 1.5 | 1480 | 500 |
| 1.6 | 1500 | 500 |
| 1.7 | 1560 | 500 |
By upper table 4 it is found that in the case where applying second voltage amplitude difference, when reaching default needed for most short fading time
Length is identical.Specifically, second voltage 1.4V, preset duration be 500ms when, electrochromic material 11 fade the required time compared with
It is small.
Wherein, the corresponding relationship of the amplitude of above-mentioned second voltage and preset duration can be obtained and be stored by measuring
In electrochromic device 10 and/or electronic equipment 100.
The corresponding relationship of the above-mentioned amplitude for showing the second voltage at 25 DEG C and -15 DEG C of low temperature of room temperature and preset duration.
In other embodiments, electrochromic device 10 and/or electronic equipment 100 can also prestore the second electricity at a temperature of other
The amplitude of pressure and the corresponding relationship of preset duration.
In this way, second voltage and preset duration can be determined according to the temperature of electrochromic material 11, to control electroluminescent change
The colourshifting process of color material 11 realizes under different temperatures that electrochromic device 10 can be realized quick color-changing.
Referring to Fig. 7, in some embodiments, step S20 includes: to control the width of second voltage in preset duration
Value increases with 11 fading time of electrochromic material and is reduced.
In some embodiments, drive module 13 can be used in preset duration, control the amplitude of second voltage with
11 fading time of electrochromic material increases and reduces.
It is appreciated that the saturation voltage that electrochromic material 11 fades under different transmitances can not be identical, wherein
Saturation voltage refers to the minimum voltage applied when 11 electrochemical reaction speed maximum of electrochromic material.In one example, electroluminescent
The saturation voltage that off-color material 11 fades is positively correlated with transmitance.
In this way, the transmitance of electrochromic material 11 is gradually reduced during electrochromic material 11 fades, in this way,
Second voltage can increase with fading time and be reduced, in this way, realizing that second voltage accurately controls, and is advantageously implemented electrochromism
Material 11 rapidly fades.
Referring to Fig. 8, in some embodiments, preset duration includes the first duration and the second duration, second voltage packet
The first sub- voltage and the second sub- voltage are included, step S20 includes: to continue first to the first sub- voltage of application of electrochromic material 11
Apply the second sub- two duration of voltage regulation so that electrochromic material 11 changes colour to electrochromic material 11 after duration.
In some embodiments, drive module 13 can be used for holding to the first sub- voltage of application of electrochromic material 11
Apply the second sub- two duration of voltage regulation so that electrochromic material 11 changes colour to electrochromic material 11 after continuous first duration
Wherein, the amplitude of the described second sub- voltage is less than the amplitude of the described first sub- voltage.
In other words, second voltage can be divided to two sections to apply to electrochromic material 11, similarly, realize second voltage essence
Really control, is advantageously implemented electrochromic material 11 and rapidly fades.Certainly, in other embodiments, second voltage is unlimited
In two sections, and can according to need three sections or three sections of selection or more, it is not specifically limited herein.
Referring to Fig. 9, in some embodiments, in some embodiments, electronic equipment 100 includes rear cover 30.Afterwards
Lid 30 includes electrochromic device 10.
In other words, electronic equipment 100 can be used electrochromic device 10 and be used as rear cover 30.At this point, electrochromism device
The substrate 19 of part 10 can be made of the higher transparent material of intensity, so that substrate 19 protects the same of electrochromic material 11
When, substrate 11 can be also used for the other elements inside protection electronic equipment 100.
Certainly, referring to Fig. 10, in some embodiments, individual rear cover can be used in electronic equipment 100, at this point,
Electrochromic device 10 can be set in rear cover 30.
Specifically, rear cover 30 can be transparent rear cover, for example, glass back cover or ceramic rear cover etc..Electrochromic device 10
It can be set on the inside of transparent rear cover, the transmitance by controlling electrochromic device 10 can be blocked or be shown in transparent rear cover
The electronic component of side.Certainly, electronic equipment 100 is also provided with decoration, for example, decorating film, electrochromic device 10 can
To be arranged between decoration and transparent rear cover 30, in this way, electrochromic device 10 in blocking or showing decorating film with can make
The appearance for obtaining electronic equipment 100 can be converted according to the state of electrochromic device 10.Realize 100 appearance of electronic equipment
Design.
In other embodiments, the outside of rear cover 30, electrochromic device can also be arranged in electrochromic device 10
10 can block or show rear cover 30 to realize different appearances.
Figure 11 is please referred to, the electronic equipment 100 of the application embodiment includes electrochromic device 10, processor 40, deposits
Reservoir 50 and it is stored in the computer program that can be run on memory 50 and on processor 40.When processor 40 executes program,
The control method of any of the above-described embodiment may be implemented.
In one example, when processor 40 executes program, following steps may be implemented:
Step S10 applies first voltage to 12 so that electrochromic material 11 colours to electrode；
Step S20 applies second voltage so that electrochromic material to 12 to electrode after the coloring of electrochromic material 11
11 fade；With
Step S30 applies tertiary voltage to 12 to electrode after 12 application second voltages are continued with preset duration to electrode
So that the transmitance of electrochromic material 11 is higher than setting value.
Wherein, the polarity of second voltage and first voltage on the contrary, the polarity of tertiary voltage and first voltage on the contrary, third is electric
The amplitude of pressure is less than the amplitude of second voltage.
In the electronic equipment 100 of the application embodiment, processor 40 executes program to fade in electrochromic material 11
When, reversed second voltage first can be applied to electrochromic material 11 so that electroluminescent change when electrochromic material 11 fades
The fast 11 speed discoloration of color material, applies lesser tertiary voltage to electrochromic material 11 again after a period of time, so that electrochromism
Material 11 reaches certain transmitance, avoids the problem of electrochromic material 11 duplicates coloring, and make electrochromism
Material 11 realizes quick color-changing.
It is stored with computer program on the storage medium of the application embodiment, is realized when program is executed by processor 40
State the control method of any embodiment.
In the description of this specification, reference term " embodiment ", " some embodiments " or " example "
Deng description mean to be contained in this Shen in conjunction with the embodiment or example particular features, structures, materials, or characteristics described
In at least one embodiment or example please.In the present specification, schematic expression of the above terms are not necessarily referring to
Identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can at any one or
It can be combined in any suitable manner in multiple embodiments or example.
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
In addition, can integrate in a processing module in each functional unit in each embodiment of the application, it can also
To be that each unit physically exists alone, can also be integrated in two or more units in a module.It is above-mentioned integrated
Module both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module
If in the form of software function module realize and when sold or used as an independent product, also can store one calculating
In machine read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
Although presently filed embodiment has been shown and described above, it is to be understood that above embodiment is
Illustratively, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be right
Above embodiment is changed, modifies, replacement and variant.
Claims (14)
1. a kind of control method of electrochromic device, which is characterized in that the electrochromic device includes electrochromic material
With the electrode pair being electrically connected with the electrochromic material, the electrochromic device passes through the opposite electroluminescent change of the electrode
Color material applies voltage, and the control method includes:
Apply first voltage to the electrochromic material so that the electrochromic material colours；
Apply second voltage so that the electrochromism material to the electrochromic material after electrochromic material coloring
Material fades, and the second voltage is opposite with the polarity of the first voltage；With
Apply after applying the second voltage to the electrochromic material and continuing preset duration to the electrochromic material
Tertiary voltage is so that the transmitance of the electrochromic material is higher than setting value, the pole of the tertiary voltage and the first voltage
Property on the contrary, the tertiary voltage amplitude be less than the second voltage amplitude.
2. control method according to claim 1, which is characterized in that the first voltage is 0.8V to 1.7V, described the
Two voltages are -1V to -1.7V, and the tertiary voltage is 0 to -3.5V.
3. control method according to claim 1, which is characterized in that the control method includes:
The second voltage and the preset duration, the electrochromic material are determined according to the temperature of the electrochromic material
Temperature and the preset duration inverse correlation.
4. control method according to claim 1, which is characterized in that it is described after electrochromic material coloring to institute
It states electrochromic material and applies second voltage so that the electrochromic material includes: the step of colour fading
In the preset duration, the amplitude for controlling the second voltage increases with the electrochromic material fading time and is subtracted
It is small.
5. control method according to claim 1, which is characterized in that when the preset duration includes the first duration and second
Long, the second voltage includes the first sub- voltage and the second sub- voltage, the Xiang Suoshu after electrochromic material coloring
Electrochromic material applies second voltage so that the electrochromic material includes: the step of colour fading
It is applied after applying the first sub- voltage to the electrochromic material and continuing the first duration to the electrochromic material
Add the second sub- two duration of voltage regulation so that the electrochromic material changes colour, the amplitude of the second sub- voltage is less than described first
The amplitude of sub- voltage.
6. a kind of electrochromic device characterized by comprising
Electrochromic material；
The electrode pair being electrically connected with the electrochromic material；With
The drive module of the electrode pair is connected, the drive module is used for the electrode to application first voltage so that described
Electrochromic material coloring, and be used for after electrochromic material coloring to the electrode to application second voltage so that institute
It states electrochromic material to fade, the polarity of the second voltage and the first voltage is on the contrary, the drive module is also used to
Continue after the first duration to apply the to the electrochromic material after preset duration to the second voltage is applied to the electrode
Three voltages are so that the transmitance of the electrochromic material is higher than setting value, the polarity of the tertiary voltage and the first voltage
On the contrary, the amplitude of the tertiary voltage is less than the amplitude of the second voltage.
7. electrochromic device according to claim 6, which is characterized in that the electrochromic device includes temperature sensing
Device, the temperature sensor are used to detect the temperature of the electrochromic material；
The drive module is used to according to the temperature of the electrochromic material determine the second voltage and the preset duration,
The temperature of the electrochromic material and the preset duration inverse correlation.
8. electrochromic device according to claim 6, which is characterized in that the electrochromic device includes voltage sensor
Device, the voltage sensor are used to detect the voltage between the electrode pair；
The drive module is used in the preset duration, controls the amplitude of the second voltage with the electrochromic material
Fading time increases and reduces.
9. electrochromic device according to claim 6, which is characterized in that the preset duration includes the first duration and the
Two durations, the second voltage include the first sub- voltage and the second sub- voltage, and the drive module is used for the electroluminescent change
Color material applies the first sub- voltage when continuing to apply the second sub- voltage regulation two to the electrochromic material after the first duration
Length is so that electrochromic material discoloration, the amplitude of the second sub- voltage are less than the amplitude of the described first sub- voltage.
10. a kind of electronic equipment characterized by comprising
Camera；With
According to the described in any item electrochromic devices of claim 6-9, the camera is corresponding with the electrochromic device
Setting, in the case where the transmitance of the electrochromic material is higher than setting value, the camera can pass through the electroluminescent change
Color device acquires image.
11. electronic equipment according to claim 10, which is characterized in that the electronic equipment includes rear cover, the rear cover
Including the electrochromic device.
12. electronic equipment according to claim 10, which is characterized in that the electronic equipment includes rear cover, described electroluminescent
Electrochromic device is stacked with the rear cover.
13. a kind of electronic equipment, which is characterized in that on a memory including electrochromic device, processor, memory and storage
And the computer program that can be run on a processor, the processor are realized when executing the computer program according to claim
Control method described in any one of 1-5.
14. a kind of storage medium, is stored thereon with computer program, which is characterized in that the computer program is held by processor
Control method according to any one of claims 1-5 is realized when row.
Priority Applications (1)
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| CN201910667653.8A CN110376818A (en) | 2019-07-23 | 2019-07-23 | Electrochromic device and its control method, electronic equipment and storage medium |
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| CN201910667653.8A CN110376818A (en) | 2019-07-23 | 2019-07-23 | Electrochromic device and its control method, electronic equipment and storage medium |
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Application publication date: 20191025 |