CN112882305A

CN112882305A - Control method, electronic device, and computer-readable storage medium

Info

Publication number: CN112882305A
Application number: CN202110185468.2A
Authority: CN
Inventors: 谢红斌
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-02-10
Filing date: 2021-02-10
Publication date: 2021-06-01
Anticipated expiration: 2041-02-10
Also published as: CN112882305B

Abstract

The application provides a control method, electronic equipment and a computer readable storage medium, and relates to the technical field of electronic equipment with a color change function. The control method comprises the steps of applying a first control voltage to the electrochromic device when the electrochromic device is in a first color changing state, wherein the application time is a first time length so as to adjust the color changing state of the electrochromic device to a second color changing state; the first control voltage is decreased from the first voltage to a second voltage within a first time period, and the second voltage is larger than the open-circuit voltage of the electrochromic device in a second color changing state. This application is through improving control voltage to avoid control voltage to maintain at the high voltage state always, and then avoid surpassing the problem that the maximum withstand voltage of electrochromic device leads to the device to damage, reach fast discoloration's effect under the prerequisite of having guaranteed electrochromic device safe handling.

Description

Control method, electronic device, and computer-readable storage medium

Technical Field

The present application relates to the field of electronic devices with color changing functions, and in particular, to a control method, an electronic device, and a computer-readable storage medium.

Background

The electrochromic device needs to adjust the transmittance change or the reflectivity change of the device by controlling the reversible electrochemical oxidation-reduction reaction of materials in the device. However, the electrochromic device has a slow color change response speed at present, and the use of the product is influenced.

Disclosure of Invention

In one aspect, an embodiment of the present application provides a method for controlling an electrochromic device, including:

when the electrochromic device is in a first color changing state, applying a first control voltage to the electrochromic device for a first time length to adjust the color changing state of the electrochromic device to a second color changing state; the first control voltage is configured to be decreased from a first voltage to a second voltage within the first time period, and the second voltage is configured to be larger than an open-circuit voltage of the electrochromic device in the second color changing state.

In another aspect, an embodiment of the present application provides a method for controlling an electrochromic device, including: when the electrochromic device is in a first color changing state, applying a first control current to the electrochromic device for a first time length to adjust the color changing state of the electrochromic device to a second color changing state; the first control current is configured to be decremented from a first current to a second current for the first time period, the first control current having a current greater than a third current for half of the first time period, such that the first time period is less than a time period during which the application of the third current to the electrochromic device adjusts the color change state from the first color change state to the second color change state.

Another aspect of embodiments of the present application provides an electronic device, including:

the detection module is used for detecting the color change state of the electrochromic device;

the control device is used for applying a first control voltage to the electrochromic device when the electrochromic device is in a first color changing state, wherein the application time is a first time length so as to adjust the color changing state of the electrochromic device to a second color changing state; wherein the first control voltage is configured to be decreased from a first voltage to a second voltage within the first time period, and the second voltage is configured to be greater than an open-circuit voltage of the electrochromic device in the second color changing state.

the control device is used for applying a first control current to the electrochromic device when the electrochromic device is in a first color changing state, wherein the application time is a first time length so as to adjust the color changing state of the electrochromic device to a second color changing state; the first control current is configured to be decremented from a first current to a second current for the first time period, the first control current having a current greater than a third current for half of the first time period, such that the first time period is less than a time period during which the application of the third current to the electrochromic device adjusts the color change state from the first color change state to the second color change state.

a middle frame;

the transparent cover plate is fixedly connected with the middle frame and forms an accommodating space;

the electrochromic device is arranged in the accommodating space and is stacked with the transparent cover plate;

the main board is arranged in the accommodating space and is provided with a processor; and

a current integrator installed in the accommodating space for acquiring a charge amount of the electrochromic device;

the processor is used for judging the color changing state of the electrochromic device according to the charge amount, and applying a first control voltage to the electrochromic device when the electrochromic device is in a first color changing state, wherein the application time is a first time length so as to adjust the color changing state of the electrochromic device to a second color changing state; the first control voltage is configured to be decreased from a first voltage to a second voltage within the first time period, and the second voltage is configured to be larger than an open-circuit voltage of the electrochromic device in the second color changing state.

a middle frame;

the processor is used for judging the color changing state of the electrochromic device according to the charge amount, and applying a first control current to the electrochromic device when the electrochromic device is in a first color changing state, wherein the application time is a first time length so as to adjust the color changing state of the electrochromic device to a second color changing state; the first control current is configured to be decremented from a first current to a second current for the first time period, the first control current having a current greater than a third current for half of the first time period, such that the first time period is less than a time period during which the application of the third current to the electrochromic device adjusts the color change state from the first color change state to the second color change state.

In another aspect, the present application provides an electronic device, which includes a processor and a memory, where the memory stores a computer program, and the computer program is used to implement the method described above when executed by the processor.

In another aspect, the present invention provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the method described above.

This application is through improving control voltage for electrochromic device's response speed accelerates, and adopt the first control voltage of control to decrement to the mode of second voltage by first voltage in first time length, avoided first control voltage to maintain at the high voltage state always, and then avoid surpassing the problem that electrochromic device's the biggest voltage that bears leads to the device to damage, reach fast color changing's effect under the prerequisite of having guaranteed electrochromic device safe handling.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 discloses a flow chart of a control method in an embodiment of the present application;

FIG. 2 is a schematic diagram of an electrochromic device in different color states according to an embodiment of the present disclosure;

FIG. 3 discloses a flow chart of a control method according to another embodiment of the present application;

FIG. 4 discloses a flow chart of a control method according to another embodiment of the present application;

FIG. 5 is a flow chart illustrating a control method according to another embodiment of the present application;

FIG. 6 discloses a schematic flow chart for obtaining the temperature of the electrochromic device in one embodiment of the present application;

FIG. 7 discloses a flow chart of a control method in an embodiment of the present application;

FIG. 8 discloses a flow chart of a control method according to another embodiment of the present application;

FIG. 9 is a flow chart illustrating a control method according to another embodiment of the present application;

FIG. 10 is a flow chart illustrating a control method according to another embodiment of the present application;

FIG. 11 is a block diagram illustrating the structure of an embodiment of an electronic device according to an embodiment of the present application;

FIG. 12 discloses a block diagram of the structure of an electronic device in another embodiment of the present application;

FIG. 13 discloses a schematic structural diagram of an electronic device in an embodiment of the present application;

fig. 14 and 15; respectively disclosing a schematic diagram of an operation state of the electronic equipment in one embodiment of the application;

FIG. 16 is a schematic diagram of an electronic device according to an embodiment of the present application;

FIG. 17 is a block diagram of an electronic device according to an embodiment of the present application;

FIG. 18 discloses a block diagram of a computer-readable storage medium according to an embodiment of the present application.

Detailed Description

The present application will be described in further detail with reference to the accompanying drawings and embodiments. In particular, the following embodiments are merely illustrative of the present application, and do not limit the scope of the present application. Likewise, the following embodiments are only some embodiments of the present application, not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The application discloses a control method of an electrochromic device, which can be used for controlling the electrochromic device and also can be used for controlling the electrochromic device arranged on electronic equipment.

As used herein, "electronic equipment" (which may also be referred to as a "terminal" or "mobile terminal" or "electronic device") includes, but is not limited to, devices that are configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.

Please refer to fig. 1, which discloses a flowchart of a control method according to an embodiment of the present application. The control method may include:

step S0101: the electrochromic device is in a first color change state.

For an electrochromic device, it may complete the color change (coloring or discoloring) within a certain time during the application of a control voltage or a control current to the electrochromic device. During the color changing period, the electrochromic device can present different color changing degrees at different moments, and each different color changing degree can be a color changing state respectively. The electrochromic device may in turn be enabled to switch between any two of the states of discoloration, such as a fully on state, a fully off state, and other states of discoloration between the fully on state and the fully off state.

Different color states also mean different transmittances of the electrochromic device. Referring to fig. 2, a schematic diagram of an electrochromic device in different color-changing states according to an embodiment of the present application is disclosed. Only five color-changing states of the electrochromic device are listed, namely a completely colored state, a completely faded state, and a first intermediate state, a second intermediate state and a third intermediate state between the completely colored state and the completely faded state. Each color change state corresponds to the state of the electrochromic device in different degrees of transmittance or different ranges of degrees of transmittance. The transmittance of the electrochromic device in fig. 2 decreases in the order visible for the fully faded, first intermediate, second intermediate, third intermediate and fully colored states of the five discolored states. The partial color change state of the electrochromic device during color change is only listed here, and the present application is not specifically limited.

In one embodiment, when the first color change state is a fully colored state, the color change state of the electrochromic device may be adjusted to a target color change state such as a fully faded state, a first intermediate state, a second intermediate state, or a third intermediate state.

In one embodiment, when the first color change state is a fully faded state, the color change state of the electrochromic device may be adjusted to a target color change state such as a fully colored state, a first intermediate state, a second intermediate state, or a third intermediate state.

In one embodiment, when the first color change state is a first intermediate state, the color change state of the electrochromic device may be adjusted to a target color change state such as a fully on state, a fully off state, a second intermediate state, or a third intermediate state.

In one embodiment, when the first color change state is a second intermediate state, the color change state of the electrochromic device may be adjusted to a target color change state such as a fully on state, a fully off state, a first intermediate state, or a third intermediate state.

In one embodiment, when the first color change state is a third intermediate state, the color change state of the electrochromic device may be adjusted to a target color change state such as a fully on state, a fully off state, a first intermediate state, or a second intermediate state.

Step S0102: and applying a first control voltage to the electrochromic device for a first time to adjust the color changing state of the electrochromic device to a second color changing state.

In the process of carrying out color change state conversion adjustment on the electrochromic device, the process can be finished by applying control voltage to the electrochromic device within a certain time. When a constant control voltage is applied to the electrochromic device, the electrochromic device can be subjected to color change state conversion, but the electrochromic device cannot be subjected to quick response, and each color change state conversion needs a certain time to reach a target color change state (namely, a second color change state).

The electrolyte has certain requirements for setting the upper limit of the control voltage based on the properties of the electrolyte itself, and exceeding the value may cause irreversible reaction of the electrolyte. And then in order to make the electrochromic device respond fast and accomplish the color state conversion at the electrochromic device, improve control voltage, can make the maximum voltage that can bear that can surpass the electrochromic device, and then cause the damage of electrochromic device. And further, the fast response of the electrochromic device cannot be realized, so that the actual use experience of a user is influenced.

In one embodiment, the first control voltage is controlled such that the first control voltage is gradually decreased from the first voltage to the second voltage within a first time period. So as to avoid the problem of slow response speed caused by continuously applying the second voltage to the electrochromic device and avoid exceeding the maximum voltage limit which can be borne by the electrochromic device caused by continuously applying the first voltage to the electrochromic device.

It will be appreciated that the second voltage must be greater than the open circuit voltage of the electrochromic device in the second color-changing state when the first control voltage is applied to the electrochromic device.

In this embodiment, adopt the technical scheme who turns down first control voltage gradually, can be so that electrochromic device changes colour fast, promoted electrochromic device at the electric current of circular telegram in-process in-service use, can not cause the biggest voltage that bears that surpasss electrochromic device simultaneously and avoid electrochromic device to damage, guaranteed to reach fast discoloration's effect under the prerequisite of electrochromic device safe handling, promote user's in-service use and experience.

In one embodiment, the first control voltage may be adjusted from the first voltage to the second voltage in a stepwise or linear decreasing manner.

In one embodiment, as shown in fig. 2, when the electrochromic device is switched between a fully colored state and a fully faded state, i.e., the first state of discoloration is the fully colored state, the second state of discoloration is the fully faded state,

or the first color changing state is a completely faded state, and the second color changing state is a completely faded state.

When the electrochromic device is switched between a complete coloring state and a complete fading state, a first control voltage of the electrochromic device is controlled in a control mode as shown in the following table:

it can be seen that batch 1 employs a constant voltage control scheme, batches 2-4 employ a first control voltage step-down scheme, and batches 2-4 use less total time than batch 1 when completing the transition between the fully colored and fully faded states. That is to say, adopt degressive mode to control electrochromic device through first control voltage, can improve electrochromic device's response speed, play the effect that the express delivery discoloured.

Please refer to fig. 3, which discloses a flowchart of a control method according to another embodiment of the present application. After step S0102, the method further comprises:

step S0201: the open circuit voltage of the electrochromic device is detected.

In order to maintain the first color change state or the second color change state in the electrochromic device, it is necessary to maintain the open circuit voltage of the electrochromic device within a certain voltage range. For example, a first control voltage is applied to the electrochromic device to power up, so that the color-changing state of the electrochromic device is switched, and the open-circuit voltage of the electrochromic device can be maintained, i.e., the electrochromic device can be ensured to be always in the first color-changing state or the second color-changing state.

For an electrochromic device, the open-circuit voltage and the transmittance of the electrochromic device are in a nonlinear positive correlation. In addition, electrochromic devices are similar to a capacitor and are not completely isolated, and thus have a certain amount of natural leakage. Then, in the presence of natural leakage rate, the open-circuit voltage of the electrochromic device cannot be maintained after the electrochromic device is powered on at the first control voltage. In the holding state of the electrochromic device, the open circuit voltage is lower as the time is longer, and if the time is long enough, the transition to the neutral state (the voltage is the critical voltage, that is, the open circuit voltage is zero) is gradual. Therefore, in order to maintain the second color changing state of the electrochromic device, the electrochromic device needs to be powered up all the time, so that the open circuit of the electrochromic device is stabilized, and the second color changing state of the electrochromic device is maintained.

Step S0202: and if the open-circuit voltage is smaller than the voltage threshold, selecting a third voltage which has a corresponding relation with the open-circuit voltage from the first time length and the change curve of the first control voltage.

For the electrochromic device, when power is supplemented in the later period, the open-circuit voltage of the electrochromic device can be measured in real time or discontinuously or periodically, so that the change condition of the open-circuit voltage of the electrochromic device can be better known, whether the electrochromic device is maintained in the second color changing state or not is further ensured, and the proper power supplementing time is further determined. The second color-changing state is influenced by the transmittance of the electrochromic device, and the transmittance of the electrochromic device has a non-linear positive correlation with the open-circuit voltage of the electrochromic device, so that the determination of the second color-changing state can be determined by the open-circuit voltage of the electrochromic device,

for example, when the open-circuit voltage of the electrochromic device is greater than the voltage threshold, it may be determined that the electrochromic device is currently in the second color change state, otherwise, the electrochromic device is not in the second color change state. The voltage threshold can be set as a trigger threshold, and can be obtained within the range of the open-circuit voltage of the electrochromic device, for example, the voltage threshold can be 0.2-0.6V. The specific voltage threshold may be 0.3V, and may be 0.4V. Of course, the setting of the voltage threshold may be adjusted.

For example, when the open circuit voltage of the electrochromic device is less than the voltage threshold, the electrochromic device may not be in the second color change state. For example, when the open circuit voltage of the electrochromic device is less than the voltage threshold, the electrochromic device may be in the second color change state, but the transmittance is different.

In the case of an electrochromic device, the open-circuit voltage and the transmittance thereof have a non-linear positive correlation, and therefore, the voltage threshold may be determined according to the transmittance. When the open-circuit voltage of the electrochromic device is lower than the voltage threshold, the transmittance of the electrochromic device is changed, which may cause the electrochromic device not to be maintained in the second color changing state, so that the electrochromic device needs to be powered up. And the second control voltage during power supply is greater than the voltage threshold value, so that the electrochromic device keeps a certain transmittance.

The second control voltage may be, for example, 0.5-1.6V. The control voltage may be 0.6V, 0.8V, 0.9V, 1.2V, or 1.4V. Of course, the second control voltage may be specifically selected according to actual conditions (on the premise that the electrochromic device is not damaged).

In an embodiment, in step S0102, a first control voltage is applied to the electrochromic device, so that the electrochromic device completes the color change state transition, and then a variation curve that can represent a first duration and a first control voltage of the control process of the electrochromic device is also formed.

When the electrochromic device is controlled according to the first duration and the first control voltage change curve, the open-circuit voltage of the electrochromic device is constantly changed, and then the change of the open-circuit voltage and the change curve of the first duration and the first control voltage form a corresponding relation.

Therefore, the third voltage corresponding to the current open-circuit voltage of the electrochromic device can be selected from the variation curve of the first duration and the first control voltage. And further, a second control voltage can be applied to the electrochromic device, and the second control voltage is decreased from the third voltage to the second voltage.

In one embodiment, the second control voltage may be decreased from the third voltage to the second voltage according to the first duration and the first control voltage variation curve.

Step S0203: a second control voltage is applied to the electrochromic device.

Can be so that electrochromic device also can adopt the technical scheme who turns down second control voltage gradually at the benefit electricity in-process, can be so that electrochromic device changes colour fast at the benefit electricity in-process, reach fast discoloration's effect under the prerequisite of having guaranteed electrochromic device safe handling, promote user's in-service use and experience.

In one embodiment, please refer to fig. 4, which discloses a flowchart illustrating a control method according to another embodiment of the present application. Step S0102 in the method may comprise:

step S0301: the open circuit voltage is adjusted to 0V.

In this embodiment, before the electrochromic device is controlled, the open-circuit voltage of the electrochromic device can be made to be 0V by using a method of short-circuiting the electrochromic device, so that when the open-circuit voltage is 0V, the electrochromic device starts to be controlled to realize coloring, fading or switching between different color-changing states, the control accuracy of the electrochromic device is improved, and the problem that the electrochromic device is broken down due to the fact that the application mode of the control voltage cannot be judged in a certain color-changing state and operation errors are caused is avoided.

Step S0302: a first control voltage is applied to the electrochromic device.

Please refer to step S0102, which is not described herein.

In one embodiment, please refer to fig. 5, which discloses a flowchart illustrating a control method according to another embodiment of the present application. Prior to step S0102, the method further comprises:

step S0401: and detecting the temperature of the electrochromic device.

In an embodiment, please refer to fig. 6, which discloses a schematic flow chart of obtaining a temperature of an electrochromic device in an embodiment of the present application. The specific steps can include:

step S0501: temperature values are collected at least one location of the electrochromic device.

In this embodiment, the temperature value of a location on the electrochromic device may be collected, or a temperature value of a location adjacent to the electrochromic device may be collected, or of course, at least 1 temperature may be collected at different locations distributed on and/or adjacent to the electrochromic device. When the electrochromic device is arranged on the electronic equipment, the positions where the temperature values can be measured can be different positions on the mainboard, different positions on the electrochromic device and different positions on the middle frame (the electronic equipment such as a mobile phone). Alternatively, the location of contact with the electrochromic device may be sensed to detect the temperature of the electrochromic device or its vicinity. Of course, the temperature value of the contact position with the electrochromic device may not be measured.

Here, the measurement of the temperature value may be performed using a temperature sensor, for example, a temperature sensor may be provided at a position in contact with the electrochromic device so as to detect the temperature of the electrochromic device or a position adjacent thereto. Of course, it may not be provided at the contact position with the electrochromic device. It is understood that when the temperature sensor and the electrochromic device are disposed on the electronic device, the temperature sensor can be at least used for detecting the temperature value of the electrochromic device of the electronic device or the area nearby the electrochromic device, and certainly, the temperature value of the battery, the camera device, the processor, etc. or the area nearby the battery, and the measured temperature value can be used as the temperature of the electrochromic device. A specific measurement method may include by providing a temperature sensor or thermistor or the like at a position of an electrochromic device, a battery, a camera device, a main board, or the like of the electronic apparatus or a vicinity thereof.

For example, a Negative Temperature Coefficient thermistor (NTC) is disposed near the electrochromic device, the battery, and the camera device, and a signal of the NTC is connected to a central processing unit (also referred to as a "processor") of the electronic device. According to the characteristics of the NTC resistor, the NTC can generate different voltages of the NTC resistor in different temperature environments; and measuring the current temperature value of the electrochromic device and the adjacent area thereof by detecting the voltage value of the negative temperature coefficient thermistor.

It should be understood that the temperature here may be a historical temperature, a current temperature (a temperature measured in real time), or a predicted temperature. The temperature can be adjusted adaptively according to specific conditions.

Step S0502: the average value of the temperature values is calculated.

In this step, the average value of the collected temperature values of the temperature sensors of the electrochromic device is calculated to obtain an average value of the temperature values.

Step S0503: the average value was taken as the temperature of the electrochromic device.

In the embodiment, the average value of the temperatures of the multiple positions of the electrochromic device is calculated, so that the temperature of the electrochromic device can be more accurately and comprehensively obtained compared with the condition that the judgment is made by only using the temperature value of one position of the electrochromic device in the prior art, and the control process of the electrochromic device can be more accurate.

Step S0402: a first time period and a first control voltage corresponding to the temperature are determined.

The electrochromic device realizes color change (coloring and discoloring) by applying control voltage, and the electrochromic device has different response time lengths under different temperatures and control voltages. However, when the temperature is too high, the original control voltage and control time duration may cause damage to the color-changing material layer of the electrochromic device during the coloring or fading process, so that the color of the electrochromic device needs to be changed by selecting a specific control voltage and control time duration at a specific temperature.

The first duration and the first control voltage at each temperature can be obtained in advance through experiments according to standard components of the electrochromic device, so that the electrochromic device can be applied to other electrochromic devices.

It should be understood that step S0401 and step S0402 may be performed simultaneously with step S0101, step S0401 and step S0402 may be performed before step S0101, or step S0401 and step S0402 may be performed after step S0101.

Next, another control method of an electrochromic device will be described, which can be used to control the electrochromic device and also can be used to control an electrochromic device provided in an electronic apparatus. Please refer to fig. 7, which discloses a flowchart of a control method according to an embodiment of the present application. The control method may include:

step S0601: the electrochromic device is in a first color change state.

Please refer to step S0101, which is not described herein.

Step S0602: and applying a first control current to the electrochromic device for a first time period to adjust the color changing state of the electrochromic device to a second color changing state.

In the process of carrying out color change state conversion adjustment on the electrochromic device, the process can be finished by applying control current to the electrochromic device within a certain time. When a constant control current is applied to the electrochromic device, the electrochromic device can be subjected to color change state conversion, but the resistance of the electrochromic device is increased along with the change of the charging time of the constant control current, so that the voltage applied to two ends of the electrochromic device is increased, and the electrochromic device module is damaged by breakdown. Reducing the constant control current, however, may extend the response time of the electrochromic device, reducing the user experience.

In one embodiment, the first control current is controlled such that the first control current is gradually decreased from the first current to the second current for a first period of time. So as to avoid the problem of slow response speed caused by continuously applying the second current to the electrochromic device and avoid exceeding the maximum voltage limit which can be borne by the electrochromic device caused by continuously applying the first current to the electrochromic device.

In this embodiment, adopt the technical scheme who turns down first control current gradually, can be so that electrochromic device changes colour fast, promoted electrochromic device at the electric current of circular telegram in-process in-service use, can not cause the biggest borne voltage that surpasss electrochromic device simultaneously and avoid electrochromic device to damage, guaranteed to reach fast discoloration's effect under the prerequisite of electrochromic device safe handling, promote user's in-service use and experience.

In one embodiment, the first control current may be adjusted from the first current to the second current in a stepwise or linear decreasing manner.

In one embodiment, the open circuit voltage of the electrochromic device is in a non-linear positive correlation with the degree of discoloration. When the electrochromic device is used as a capacitor, the open-circuit voltage is related to the charge amount, so that different color-changing states have different charge amounts. The color change state of the electrochromic device can be determined by acquiring the charge quantity of the electrochromic device.

Therefore, in step S0602, the timing of the application time may be replaced by detecting the charge amount of the electrochromic device to improve the control accuracy.

In one embodiment, the first control current is greater than the third current for half of the first time period, such that the first time period is less than a time period for which the applying the third current to the electrochromic device adjusts the color change state from the first color change state to the second color change state. For quick response.

In one embodiment, when the electrochromic device is switched between a fully colored state and a fully faded state, i.e., the first state of discoloration is the fully colored state, the second state of discoloration is the fully faded state,

Please refer to fig. 8, which discloses a flowchart of a control method according to another embodiment of the present application. After step S0602, the method further comprises:

step S0701: the open circuit voltage of the electrochromic device is detected.

See step S0201, which is not described herein.

Step S0702: and if the open-circuit voltage is smaller than the voltage threshold, selecting a third current which has a corresponding relation with the open-circuit voltage from the first time length and the change curve of the first control current.

Referring to step S0202, in addition, a first control current is applied to the electrochromic device, so that the electrochromic device completes the color change state transition, and then a variation curve representing a first duration and a first control current of the control process of the electrochromic device is also formed.

When the electrochromic device is controlled according to the first duration and the first control current change curve, the open-circuit voltage of the electrochromic device is constantly changed, and then the change of the open-circuit voltage and the change curve of the first duration and the first control current form a corresponding relation.

Therefore, the third current corresponding to the current open-circuit voltage of the electrochromic device can be selected from the variation curve of the first duration and the first control current. A second control current may then be applied to the electrochromic device, the second control current decreasing from the third current to the second current.

In one embodiment, the second control current may be decreased from the third current to the second current according to the first duration and the first control current variation curve.

Step S0703: a second control current is applied to the electrochromic device.

Can be so that electrochromic device also can adopt the technical scheme who turns down the second control current gradually at the benefit electricity in-process, can be so that electrochromic device changes colour fast at the benefit electricity in-process, reach fast discoloration's effect under the prerequisite of having guaranteed electrochromic device safe handling, promote user's in-service use and experience.

In one embodiment, please refer to fig. 9, which discloses a flowchart illustrating a control method according to another embodiment of the present application. Step S0602 in the method may include:

step S0801: the open circuit voltage is adjusted to 0V.

See step S0301 for details.

Step S0802: a first control current is applied to the electrochromic device.

Please refer to step S0602, which is not described herein.

In one embodiment, please refer to fig. 10, which discloses a flowchart illustrating a control method according to another embodiment of the present application. Prior to step S0602, the method further comprises:

step S0901: and detecting the temperature of the electrochromic device.

Please refer to step S0401, which is not described in detail.

Step S0902: a first time period and a first control current corresponding to the temperature are determined.

Electrochromic devices achieve color change (coloring and discoloring) by applying a control current, which is closely related to a control voltage. The electrochromic device has different response time under different temperatures and control voltages. However, when the temperature is too high, the original control voltage and control time duration may cause damage to the color-changing material layer of the electrochromic device during the coloring or fading process, so that the color of the electrochromic device needs to be changed by selecting a specific control voltage and control time duration at a specific temperature.

The first duration at each temperature and the first current related to the control voltage can be obtained in advance through experiments according to the standard component of the electrochromic device, so as to be applied to other electrochromic devices.

It is understood that step S0901 and step S0902 may be performed simultaneously with step S0601, step S0901 and step S0902 may be performed before step S0601, and step S0901 and step S0902 may be performed after step S0601.

Next, an electronic device is explained, on which an electrochromic device is provided, which can be controlled by the above-described control method. Referring to fig. 11, a block diagram of a structure of an embodiment of an electronic device according to an embodiment of the present application is disclosed. The electronic device 300 may include a bezel (not shown), a display device (not shown), a control circuit 301, and a cover assembly 200 (the electrochromic device 100 and the cover are stacked). Specifically, the bezel is assembled with a cover plate assembly 200 to form a housing, the cover plate being disposed on a side of the electrochromic device 100 remote from the bezel. The inside accommodation space that sets up of casing, center and apron fixed connection form accommodation space promptly.

The housing is for carrying the display device and the control circuit 301. The control circuit 301 is coupled to the electrochromic device 100 of the cover plate assembly 200, and the control circuit 301 is configured to receive a control command, where the control command is used to control the electrochromic device 100 to change color. Of course, the housing space of the housing may also be used to house electronic components such as a battery, a motherboard 306 (see fig. 12), a processor (the processor may be disposed on the motherboard 306), various types of sensors (the sensors may also be disposed on the motherboard 306 and other locations within the housing space, such as a temperature sensor), and so on. In one embodiment, the display device and the cover assembly 200 are respectively disposed on opposite sides of the middle frame and fixedly connected to the middle frame, and the electrochromic device 100 is closer to the display device than the cover.

It is understood that in the electronic device 300, the motherboard 306 is used as the main hardware, and therefore, the control circuit 301 may be disposed on the motherboard 306, and the motherboard 306 may be electrically connected (or coupled) to the electrochromic device 100 through the flexible circuit board.

In an embodiment, please refer to fig. 12, which discloses a block diagram of a structural component of an electronic device 300 in another implementation of the present application, and unlike the previous embodiment, the electronic device 300 in this embodiment further includes a signal input device 302, wherein the signal input device 302 is coupled to the control circuit 301. Specifically, the control circuit 301 is configured to receive a control command input through the signal input device 302 and control the operating state of the electrochromic device 100 according to the control command. Wherein, the working state of the electrochromic device 100 includes controlling and changing the voltage or current signal state thereof to achieve the purpose of controlling the electrochromic device 100 to change color (coloring or fading state). The signal input device 302 may include a touch display screen 303 (also referred to as a display device), an operation key 304, a trigger sensor 305, and the like.

Optionally, please refer to fig. 13, which discloses a schematic structural diagram of the electronic device 300 in an embodiment of the present application, wherein the signal input device 302 may be a touch display screen 303 (i.e., a display device in the above embodiment), and the control instruction input by the signal input device 302 may be a touch operation received by the touch display screen 303, including at least one of sliding, clicking and long pressing, please refer to fig. 14 and fig. 15, which respectively disclose a schematic structural diagram of an operating state of the electronic device 300 in an embodiment of the present application. Wherein, the operator (reference 307 in the figure can be represented as the hand of the operator) can input the control instruction by sliding the touch display screen 303 in fig. 14; the state in fig. 15 may indicate that the operator performs the input process of the control command by clicking or long-pressing the chart or the specific position on the touch display 303.

In an embodiment, referring to fig. 12, the signal input device 302 may be an operation key 304, and the control instruction may also be a triggering instruction of the operation key 304, wherein the operation key 304 may be a single key, or may be a multiple of other function keys of the electronic device 300, such as a power key, a volume key, and the like, and the different control instructions received by the control circuit 301 are defined according to different key triggering manners, so that the control circuit 301 can implement different signal controls on the electrochromic device 100.

Further, referring to fig. 12, the signal input device 302 may be a trigger sensor 305, wherein the trigger sensor 305 may be a proximity sensor, a temperature sensor, an ambient light sensor, or the like, and the trigger sensor 305 collects peripheral signals of the electronic device 300 and controls the housing to change the appearance color through the control circuit 301.

Further, a current integrator may be installed in the electronic device 300, and the current integrator is installed in the receiving space for calculating the amount of charge passing through the electrochromic device 100.

The processor is configured to determine a color-changing state of the electrochromic device 100 according to the charge amount, and is configured to apply a first control current or a first control voltage to the electrochromic device 100 when the electrochromic device 100 is in a first color-changing state, where the application time is a first time length, so as to adjust the color-changing state of the electrochromic device 100 to a second color-changing state; the first control current is configured to be decreased from a first current to a second current within a first time period, the current of the first control current is greater than the third current for half of the first time period, so that the first time period is less than a time period for which the third current is applied to the electrochromic device 100 to adjust the color change state from the first color change state to the second color change state, the first control voltage is configured to be decreased from a first voltage to a second voltage within the first time period, and the second voltage is configured to be greater than an open-circuit voltage of the electrochromic device 100 in the second color change state.

Further, the first control voltage is configured to be stepped or linearly decreased from the first voltage to the second voltage.

Further, the first control current is configured to be stepped or linearly decreased from the first current to the second current.

Further, the first color changing state is a completely colored state or a completely faded state, the second color changing state is a completely colored state or a completely faded state, and the first color changing state and the second color changing state are configured to be different from each other in color changing state.

The electronic device 300 is further provided with a voltage detection module for detecting the open circuit voltage of the electrochromic device 100.

The processor is used for selecting a third voltage which has a corresponding relation with the open-circuit voltage in the first time length and the change curve of the first control voltage when the open-circuit voltage is smaller than the voltage threshold; or, the third current is used for selecting the third current corresponding to the open-circuit voltage in the first time length and the change curve of the first control current when the open-circuit voltage is smaller than the voltage threshold.

The processor is configured to apply a second control voltage or a second control current to the electrochromic device 100, the second control voltage being configured to decrease from the third voltage to the second voltage in accordance with the curvilinear variation. The second control current is configured to decrease from the third current to the second current according to a curve.

Further, the processor is configured to adjust the open circuit voltage to 0V when the electrochromic device 100 is in the first color change state. The processor is configured to apply a first control voltage or a first control current to the electrochromic device 100 when the open circuit voltage is 0V.

Further, a temperature sensor is also provided in the electronic device 300, and the temperature sensor is used for detecting the temperature of the electrochromic device 100; the processor is configured to determine a first time duration and a first control voltage corresponding to a temperature, or to determine a first time duration and a first control current corresponding to a temperature.

Next, an electronic apparatus is explained, which can control an electrochromic device or an electrochromic device mounted on the electronic apparatus by the control method described above. Referring to fig. 16, a schematic structural diagram of an electronic device 400 according to an embodiment of the disclosure is disclosed. The electronic device 400 may comprise a processor 401 and a detection module 402 electrically connected to each other, wherein the detection module 402 may comprise a voltage detection module 4021, a temperature detection module 4022, and a current integrator 4031.

In one embodiment, the detection module 402 is configured to detect a color change state of the electrochromic device. For example, the voltage detection module 4021 detects an open circuit voltage of the electrochromic device, and the processor 401 determines a color change state of the electrochromic device according to the open circuit voltage. For example, the amount of charge of the electrochromic device is detected by the current integrator 4031, and the processor 401 determines the color change state of the electrochromic device according to the amount of charge.

The processor 401 is configured to apply a first control voltage or a first control current to the electrochromic device when the electrochromic device is in the first color changing state, where the application time is a first duration, so as to adjust the color changing state of the electrochromic device to the second color changing state.

In one embodiment, the first control voltage is configured to be decreased from the first voltage to a second voltage within a first time period, and the second voltage is configured to be greater than an open-circuit voltage of the electrochromic device in the second color changing state. The first control current is configured to be decreased from the first current to the second current within a first time period, and the first control current has a current greater than the third current for half of the first time period, so that the first time period is less than a time period for which the third current is applied to the electrochromic device to adjust the color change state from the first color change state to the second color change state.

In one embodiment, the first control voltage is configured to decrease stepwise or linearly from the first voltage to the second voltage.

In one embodiment, the first control current is configured to decrease stepwise or linearly from the first current to the second current.

In one embodiment, the first color change state is a fully colored state or a fully faded state, the second color change state is a fully colored state or a fully faded state, and the first color change state and the second color change state are configured to be different from each other.

The voltage detection module 4021 is used for detecting the open-circuit voltage of the electrochromic device;

the processor 401 is configured to select a third voltage corresponding to the open-circuit voltage in the first time period and the variation curve of the first control voltage or select a third current corresponding to the open-circuit voltage in the first time period and the variation curve of the first control current when the open-circuit voltage is smaller than the voltage threshold.

The processor 401 is configured to apply a second control voltage or a second control current to the electrochromic device.

The second control voltage is configured to decrease from the third voltage to the second voltage according to a curve change.

The second control current is configured to decrease from the third current to the second current according to a curve.

In one embodiment, the processor 401 is configured to adjust the open circuit voltage to 0V when the electrochromic device is in the first color changing state, and is configured to apply a first control voltage or a first control current to the electrochromic device when the open circuit voltage is 0V.

In one embodiment, the processor is configured to short the electrochromic device and adjust the open circuit voltage to 0V.

In one embodiment, the temperature detection module 4022 is configured to detect the temperature of the electrochromic device. The processor 401 is configured to determine a first time duration and a first control voltage corresponding to a temperature or a first time duration and a first control current corresponding to a temperature.

The following description of an electronic device is applicable to the above control method. Please refer to fig. 17, which is a block diagram of an electronic device according to an embodiment of the present application. The electronic device 500 may include a processor 501 and a memory 502. The memory 502 stores therein a computer program for implementing the control method in any of the above embodiments when executed by the processor 501.

Specifically, the processor 501 controls the operation of the electronic device 500, and the processor 501 may also be referred to as a Central Processing Unit (CPU). The processor 501 may be an integrated circuit chip having signal processing capabilities. The processor 501 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 502 is used for storing program data executed by the processor 501 and data of the processor 501 during processing, wherein the memory 502 may include a nonvolatile storage portion for storing the program data. In another embodiment, the memory 502 may serve as a memory of the processor 501 only to buffer data processed by the processor 401, the program data is actually stored in a device other than the processor 501, and the processor 501 is connected to an external device to call the externally stored program data to perform corresponding processing.

Referring to fig. 18, a block diagram of a computer-readable storage medium according to an embodiment of the present application is disclosed. The computer-readable storage medium 600 stores a computer program 601, and the computer program 601 implements the control method described above when executed by a processor.

The computer-readable storage medium 600 may be a medium that can store program instructions, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, or may be a server that stores the program instructions, and the server may send the stored program instructions to other devices for operation or may self-operate the stored program instructions.

In an embodiment, the computer-readable storage medium 600 may also be the memory 502 as shown in FIG. 17.

In the several embodiments provided in this application, it should be understood that the disclosed methods and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules or units is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.

Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are all included in the scope of the present application.

Claims

1. A method of controlling an electrochromic device, comprising:

2. The method of claim 1, wherein the first control voltage is configured to step or linearly decrease from the first voltage to the second voltage.

3. The method of claim 1, wherein the first color change state is a fully colored state or a fully faded state, the second color change state is a fully colored state or a fully faded state, and the first color change state and the second color change state are configured to be different from each other in color change state;

after the adjusting the color change state of the electrochromic device to a second color change state, the method further comprises:

detecting the open circuit voltage of the electrochromic device;

if the open-circuit voltage is smaller than a voltage threshold, selecting a third voltage corresponding to the open-circuit voltage from the first duration and a variation curve of the first control voltage;

applying a second control voltage to the electrochromic device, the second control voltage configured to decrease from the third voltage to the second voltage in accordance with the curvilinear variation.

4. The method of any of claims 1-3, wherein applying a first control voltage to the electrochromic device while the electrochromic device is in the first color change state comprises:

when the electrochromic device is in a first color changing state, adjusting the open-circuit voltage to be 0V;

a first control voltage is applied to the electrochromic device.

5. The method of claim 4, wherein the adjusting the open circuit voltage to 0V comprises:

and short-circuiting the electrochromic device, and adjusting the open-circuit voltage to be 0V.

6. The method of any of claims 1-3, wherein prior to said applying a first control voltage to the electrochromic device while the electrochromic device is in the first color change state, the method further comprises:

detecting the temperature of the electrochromic device;

determining the first time length and the first control voltage corresponding to the temperature.

7. A method of controlling an electrochromic device, comprising:

when the electrochromic device is in a first color changing state, applying a first control current to the electrochromic device for a first time length to adjust the color changing state of the electrochromic device to a second color changing state; the first control current is configured to be decremented from a first current to a second current for the first time period, the first control current having a current greater than a third current for half of the first time period, such that the first time period is less than a time period during which the application of the third current to the electrochromic device adjusts the color change state from the first color change state to the second color change state.

8. The method of claim 7, wherein the first control current is configured to step or linearly decrease from the first current to the second current.

9. The method of claim 7, wherein the first color change state is a fully colored state or a fully faded state, the second color change state is a fully colored state or a fully faded state, and the first color change state and the second color change state are configured to be different from each other in color change state;

detecting an open circuit voltage of the electrochromic device;

if the open-circuit voltage is smaller than a voltage threshold, selecting a third current corresponding to the open-circuit voltage from the first duration and the change curve of the first control current;

applying a second control current to the electrochromic device, the second control current configured to decrease from the third current to the second current in accordance with the curvilinear variation.

10. The method of any of claims 7-9, wherein prior to said applying a first control current to said electrochromic device while said electrochromic device is in a first color change state, said method further comprises:

and adjusting the open-circuit voltage of the electrochromic device to be 0V.

11. The method of claim 10, wherein the adjusting the open circuit voltage to 0V comprises:

12. The method of any of claims 7-9, wherein prior to said applying a first control voltage to said electrochromic device while said electrochromic device is in a first color change state, said method further comprises:

detecting the temperature of the electrochromic device;

determining the first time period and the first control current in a corresponding relationship with the temperature.

13. An electronic device, comprising:

14. An electronic device, comprising:

15. An electronic device, comprising:

a middle frame;

16. An electronic device, comprising:

a middle frame;

17. An electronic device, comprising a processor and a memory, wherein the memory stores a computer program for implementing the method of any one of claims 1-12 when executed by the processor.

18. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the method of any one of claims 1-12.