CN109213224B

CN109213224B - Temperature control method and device of electronic ink screen and display equipment

Info

Publication number: CN109213224B
Application number: CN201810922009.6A
Authority: CN
Inventors: 曹长宏
Original assignee: Hanwang Technology Co Ltd
Current assignee: Beijing Hanwang Guocui Technology Co ltd
Priority date: 2018-08-14
Filing date: 2018-08-14
Publication date: 2020-11-20
Anticipated expiration: 2038-08-14
Also published as: CN109213224A

Abstract

The invention discloses a temperature control method and device of an electronic ink screen and display equipment, wherein the method comprises the following steps: detecting a screen refreshing event to obtain a detection result; detecting whether the temperature of the electronic ink screen meets the refreshing requirement or not according to the detection result of the screen refreshing event; and when the temperature of the electronic ink screen does not reach the refreshing requirement, controlling a temperature adjusting device to adjust the temperature of the electronic ink screen to reach the refreshing requirement before executing screen refreshing operation. The electronic ink screen can work normally in various external environments, and compared with a scheme of controlling the temperature adjusting device to adjust the temperature of the electronic ink screen all the time to meet refreshing requirements, the electronic ink screen has the advantages that power consumption is reduced, and the endurance time of the whole electronic ink screen is prolonged.

Description

Temperature control method and device of electronic ink screen and display equipment

Technical Field

The invention relates to the technical field of electronic ink screens, in particular to a temperature control method of an electronic ink screen, a temperature control device of the electronic ink screen and electronic ink screen display equipment.

Background

Electronic ink screens have been increasingly used in electronic display devices. A plurality of micro-microcapsules are attached to the surface of the electronic ink screen, negative black particles and positive white particles are encapsulated in the microcapsules, and the particles with different colors are orderly arranged by changing an external electric field, so that a visual display effect with clear black and white is presented. After the electronic ink screen refreshes the image, the screen is powered off, and the image still stays on the screen for a long time.

However, the electronic ink screen has its own disadvantages, and the small operating temperature range is one of the main disadvantages. The normal working temperature of the current commercial mass-produced electronic ink screen is only 0-50 ℃, because the viscosity coefficient of liquid in the capsule is increased when the electronic ink screen works in an environment with lower temperature, the viscous resistance of black-white ink particles is increased when an electric field is applied to the ink particles, and the movement is abnormal, so that the electronic ink screen can reach a target position for a long time, even can not reach the target position or only part of the particles can move to the target position. The visual expression is that the image or character font displayed on the screen becomes light, the contrast is greatly reduced, the image and the font are blurred, even the whole screen becomes white, and the image cannot be distinguished.

In autumn and winter, the outdoor environment temperature in many areas in northern China can be below 0 ℃ for a long time, so that an electronic ink screen reader used outdoors cannot normally display, or outdoor products such as electronic ink screen bus stop boards and electronic ink screen advertising boards cannot normally use. Therefore, it is very necessary to provide a technical solution for controlling the temperature of the electronic ink screen to improve the adaptability of the electronic ink screen to the external environment temperature.

Disclosure of Invention

It is an object of an embodiment of the present invention to provide a method for controlling a temperature of an electronic ink screen, so that the electronic ink screen can normally operate in any external environment.

According to a first aspect of the present invention, there is provided a temperature control method of an electronic ink screen, comprising:

detecting a screen refreshing event to obtain a detection result;

detecting whether the temperature of the electronic ink screen meets the refreshing requirement or not according to the detection result of the screen refreshing event;

and when the temperature of the electronic ink screen does not reach the refreshing requirement, controlling a temperature adjusting device to adjust the temperature of the electronic ink screen to reach the refreshing requirement before executing screen refreshing operation.

Optionally, the method further comprises:

according to the detection result of the screen refreshing event, obtaining a screen area where a pixel to be refreshed corresponding to the screen refreshing event is located, and taking the screen area where the pixel is located as a target area, wherein the electronic ink screen is divided into at least two screen areas, and each screen area corresponds to one temperature adjusting device;

the step of detecting whether the temperature of the electronic ink screen meets the refreshing requirement comprises the following steps:

detecting the temperature of the target area;

the step of controlling the temperature adjusting device to adjust the temperature of the electronic ink screen to meet the refreshing requirement comprises the following steps:

and controlling a temperature adjusting device corresponding to the target area to adjust the temperature of the target area to meet the refreshing requirement.

Optionally, the step of obtaining a screen area where a pixel to be refreshed corresponding to the screen refresh event is located, and taking the screen area where the pixel is located as a target area includes:

acquiring a screen image to be displayed corresponding to the screen refreshing event;

comparing the screen image to be displayed with the currently displayed screen image to obtain a comparison result;

and according to the comparison result, obtaining a screen area where the pixel to be refreshed corresponding to the screen refreshing event is located, and taking the screen area where the pixel is located as a target area.

Optionally, the method further comprises:

detecting the position of a pixel to be refreshed corresponding to the screen refreshing event in the target area;

and when the position is the edge position of the target area, controlling a temperature adjusting device corresponding to an adjacent area of the target area to adjust the temperature of the adjacent area.

Optionally, the method further comprises:

when the position is the edge position of the target area, the step of controlling the temperature adjustment device corresponding to the target area to adjust the temperature of the target area to meet the refresh requirement comprises:

and controlling a temperature adjusting device corresponding to the target area to adjust the temperature of the target area to reach a first temperature threshold, wherein the first temperature threshold is greater than a lower limit temperature value corresponding to the refreshing requirement.

Optionally, before controlling the temperature adjustment device corresponding to the target area to adjust the temperature of the target area to meet the refresh requirement, the method further includes:

and controlling a temperature adjusting device corresponding to each screen area to adjust the temperature of each screen area to reach a second temperature threshold value, wherein the second temperature threshold value is smaller than a lower limit temperature value corresponding to the refreshing requirement.

Optionally, the method further comprises:

and after the temperature adjusting device is controlled to adjust the temperature of the electronic ink screen to meet the refreshing requirement, the temperature adjusting device is closed.

Optionally, the method further comprises:

detecting a current temperature control mode;

and when the temperature control mode is a low-power-consumption temperature control mode, executing the step of detecting whether the temperature of the electronic ink screen meets the refreshing requirement according to the detection result of the screen refreshing event.

According to the second aspect of the present invention, there is also provided a temperature control device of an electronic ink screen, comprising:

the screen refreshing event detection module is used for detecting a screen refreshing event to obtain a detection result;

the temperature detection module is used for detecting whether the temperature of the electronic ink screen meets the refreshing requirement or not according to the detection result of the screen refreshing event; and the number of the first and second groups,

and the control module is used for controlling the temperature adjusting device to adjust the temperature of the electronic ink screen to meet the refreshing requirement before the screen refreshing operation is executed when the temperature of the electronic ink screen does not meet the refreshing requirement.

According to a third aspect of the present invention, there is also provided a temperature control device for an electronic ink screen, the temperature control device for an electronic ink screen comprising a memory and a processor, the memory being configured to store instructions for controlling the processor to operate so as to execute the temperature control method for an electronic ink screen according to the first aspect of the present invention.

According to a fourth aspect of the present invention, there is also provided an electronic ink screen display device, comprising: an electronic ink screen, a temperature acquisition device, a temperature adjustment device, and a temperature control device of the electronic ink screen according to the second or third aspect of the present invention,

the temperature acquisition device is used for sending the acquired temperature of the electronic ink screen to the temperature control device.

Optionally, the electronic ink screen is divided into at least two screen areas, and the screen areas, the temperature adjusting device and the temperature collecting device are configured in a one-to-one correspondence manner.

Optionally, the temperature adjustment device includes any one or two of a first heating module and a second heating module, where the first heating module is disposed on the front surface of the electronic ink screen, and the second heating module is disposed on the back surface of the electronic ink screen.

Optionally, the temperature adjustment device comprises a first heating module, the first heating module is arranged on the front surface of the electronic ink screen, the first heating module comprises a glass substrate coated with an ITO conductive layer and a first heating driving circuit, wherein,

the ITO conductive layer is connected to the first heating driving circuit through an electrode,

the first heating driving circuit is connected with a temperature control device of the electronic ink screen.

Optionally, the temperature adjusting device comprises a second heating module disposed on the back of the electronic ink screen, the second heating module comprises a circuit board provided with a heating coil and a second heating driving circuit, wherein,

the heating coil is connected to the second heating driving circuit through an electrode,

and the second heating driving circuit is connected with a temperature control device of the electronic ink screen.

The method has the beneficial effects that the method can control the temperature adjusting device to adjust the temperature of the electronic ink screen to meet the refreshing requirement before refreshing, so that the electronic ink screen can normally work in various external environments according to the method provided by the embodiment of the invention. In addition, according to the method provided by the embodiment of the invention, when the screen refreshing event is detected and the temperature of the electronic ink screen does not reach the refreshing requirement, the temperature adjusting device is controlled to adjust the temperature of the electronic ink screen to reach the refreshing requirement, so that compared with a scheme of controlling the temperature adjusting device to always adjust the temperature of the electronic ink screen to reach the refreshing requirement, the power consumption can be reduced, the endurance time of the whole machine is prolonged, and the effectiveness of temperature control is further improved.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a functional block diagram of an electronic ink screen display device according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a hardware structure of a temperature control device according to an embodiment of the present invention.

Fig. 3 is a schematic flow chart of a temperature control method of an electronic ink screen according to an embodiment of the present invention.

Fig. 4 is a schematic flow chart of a temperature control method of an electronic ink screen according to another embodiment of the present invention.

Fig. 5 is a schematic block diagram of a temperature control device according to an embodiment of the present invention.

Fig. 6 is an assembly view of an electronic ink panel according to an embodiment of the present invention with a glass substrate coated with an ITO conductive layer and a circuit board provided with a heating coil, respectively.

FIG. 7 is a diagram illustrating an electronic ink screen divided into a plurality of screen areas according to an embodiment of the present invention.

FIG. 8 is a circuit diagram of a temperature adjustment device according to an embodiment of the present invention.

Fig. 9 is a schematic diagram based on the position of the temperature sensor shown in fig. 8 on the PCB circuit board.

Fig. 10 is a flowchart illustrating signal processing of respective devices of the electronic ink screen display apparatus according to an example of the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

< electronic ink Screen display device >

Fig. 1 is a schematic structural diagram of an electronic ink screen display device according to an embodiment of the present invention.

Referring to fig. 1, an electronic ink screen display device according to an embodiment of the present invention includes an electronic ink screen 1100, a temperature control apparatus 1200, a temperature acquisition apparatus 1300, and a temperature adjustment apparatus 1400.

In this embodiment, the temperature acquisition device 1300 is configured to acquire the temperature of the electronic ink screen 1100, and send the temperature of the electronic ink screen 1100 to the temperature control device 1200. The temperature control device 1200 can control the temperature adjustment device 1400 to adjust the temperature of the electronic ink screen 1100, so that the temperature of the electronic ink screen 1100 meets the screen refresh requirement.

Fig. 2 is a schematic diagram of a hardware structure of a temperature control apparatus 1200 of an electronic ink screen according to an embodiment of the invention.

As shown in fig. 2, temperature control apparatus 1200 may include one or more memories 1210 and one or more processors 1220.

The memory 1210 may include, for example, a ROM (read only memory), a RAM (random access memory), a nonvolatile memory such as a hard disk, and the like.

The processor 1220 may be a mobile version processor, a single chip, or the like.

The memory 1210 is used for storing instructions for controlling the processor 1220 to operate so as to execute the temperature control method of the electronic ink screen according to the embodiment of the present invention, and those skilled in the art can design the instructions according to the technical solutions disclosed in the present invention. How the instructions control the operation of the processor is well known in the art, and embodiments of the present invention are not described in detail herein.

< method examples >

Referring to fig. 3, a method for controlling the temperature of an electronic ink screen according to an embodiment of the present invention is implemented by a temperature control apparatus 1200, and the method for controlling the temperature of an electronic ink screen may include the following steps:

in step S3100, the temperature control apparatus 1200 detects a screen refresh event and obtains a detection result.

The screen refresh event may include either or both of an external event and an internal event.

For example, the external event includes a setting operation performed by the user on the electronic ink screen 1100, and the setting operation may include any one or more of clicking a screen, sliding a screen, and the like.

Also for example, the internal event includes a refresh demand generated by the electronic ink screen display device itself, or the like.

According to step S3100, the temperature control device 1200 performs each detection result of the detection whether a screen refresh event occurs or whether no screen refresh event occurs. When the detection result is that the screen refresh event occurs, step S3200 is executed as follows, and when the detection result is that the screen refresh event does not occur, step S3100 is executed again to perform the next detection.

In an example where the screen refresh event includes the above items, as long as any one of them is detected, the detection result is determined as the occurrence of the screen refresh event.

In step S3200, the temperature control apparatus 1200 detects whether the temperature of the electronic ink screen 1100 meets the refresh requirement according to the detection result of the screen refresh event.

For example, the refresh request may be a lower temperature limit corresponding to the refresh of the electronic ink screen 1100. Detecting whether the temperature of the electronic ink screen 1100 meets the refresh requirement may include: it is detected whether the temperature of the electronic ink screen 1100 is higher than or equal to the lower limit temperature value.

For another example, the refresh request may be an upper temperature limit corresponding to the refresh of the electronic ink screen 1100. Detecting whether the electronic ink screen 1100 meets the refresh requirement may include: it is detected whether the temperature of the electronic ink screen 1100 does not exceed the upper temperature limit value.

For another example, the refresh request may be a temperature range defined by a lower limit temperature value and an upper limit temperature value corresponding to the electronic ink screen 1100 when being refreshed. Detecting whether the electronic ink screen 1100 meets the refresh requirement may include: it is detected whether the temperature of the electronic ink screen 1100 is within the temperature range.

In step S3300, when the temperature of the electronic ink screen 1100 does not reach the refresh requirement, the temperature control device 1200 controls the temperature adjustment device 1400 to adjust the temperature of the electronic ink screen 1100 to reach the refresh requirement before executing the screen refresh operation.

In one example, the temperature adjustment device 1400 may include a heating device. When the temperature of the electronic ink screen 1100 does not reach the lower limit temperature value corresponding to the refresh of the electronic ink screen 1100, the temperature control device 1200 controls the heating device to heat the electronic ink screen 1100, so that the temperature of the electronic ink screen 1100 at least reaches the lower limit temperature value corresponding to the refresh of the electronic ink screen 1100.

In one example, the temperature adjustment device 1400 may include a cooling device. When the temperature of the electronic ink screen 1100 exceeds the upper limit temperature value corresponding to the refresh of the electronic ink screen 1100, the temperature control device 1200 controls the cooling device to cool the electronic ink screen 1100, so that the temperature of the electronic ink screen 1100 is at least reduced to the upper limit temperature value corresponding to the refresh of the electronic ink screen 1100.

In the embodiment of the present invention, after the temperature of the electronic ink screen 1100 reaches the refresh requirement, the temperature control device 1200 calls the refresh waveform corresponding to the refresh mode from the waveform file according to the refresh mode requirement corresponding to the screen refresh event, and sends the pixel information to be refreshed and the refresh waveform to the electronic ink screen controller. And the electronic ink screen controller controls the electronic ink screen to complete screen refreshing.

According to the method provided by the embodiment of the invention, the temperature adjusting device can be controlled to adjust the temperature of the electronic ink screen to meet the refreshing requirement before refreshing, so that the electronic ink screen can normally work in various external environment temperatures according to the method provided by the embodiment of the invention.

In addition, according to the method provided by the embodiment of the invention, when the screen refreshing event is detected and the temperature of the electronic ink screen does not reach the refreshing requirement, the temperature adjusting device is controlled to adjust the temperature of the electronic ink screen to reach the refreshing requirement, so that compared with a scheme of controlling the temperature adjusting device to always adjust the temperature of the electronic ink screen to reach the refreshing requirement, the power consumption can be reduced, the endurance time of the whole machine is prolonged, and the effectiveness of temperature control is further improved.

In an embodiment of the present invention, the method for controlling the temperature of the electronic ink screen may further include the steps of:

in step S3400, the temperature control device 1200 obtains a screen area where a pixel to be refreshed corresponding to the screen refresh event is located, and takes the screen area where the pixel is located as a target area.

In this embodiment, the electronic ink screen 1100 is divided into at least two screen areas, and each screen area corresponds to one temperature adjustment device 1400.

In this embodiment, the step S3200, in which the temperature control device 1200 detects whether the temperature of the electronic ink screen 1100 meets the refresh requirement may include: the temperature of the target area is detected.

In this embodiment, when the temperature of the target area does not reach the refresh request, the step S3300 in which the temperature control device 1200 controls the temperature adjustment device 1400 to adjust the temperature of the electronic ink screen 1100 to reach the refresh request may include: the temperature adjusting device 1400 corresponding to the control target area adjusts the temperature of the target area to meet the refresh requirement.

According to the embodiment of the present invention, the temperature control device may perform partition control on the temperature of the electronic ink screen, that is, before the electronic ink screen 1100 performs the partial refresh operation, the temperature control device 1200 may only control the temperature adjustment device 1400 corresponding to the target area to act, so as to adjust the temperature of the target area to meet the refresh requirement, and no other temperature adjustment device is required to adjust the temperature of the screen area other than the target area, thereby further reducing power consumption.

In an embodiment of the present invention, the step S3400 in which the temperature control device 1200 obtains the screen area where the pixel to be refreshed corresponding to the screen refresh event is located, and taking the screen area where the pixel is located as the target area may include the following steps:

in step S3410, a screen image to be displayed corresponding to the screen refresh event is acquired.

Step S3420, comparing the screen image to be displayed with the currently displayed screen image to obtain a comparison result.

In this embodiment, the comparison result may be the obtained pixel to be refreshed corresponding to the screen refresh event.

Step S3430, according to the comparison result, obtaining a screen area where the pixel to be refreshed corresponding to the screen refresh event is located, and taking the screen area where the pixel is located as a target area.

In the foregoing embodiment of partition control, when the pixel to be refreshed corresponding to the screen refresh event is located at the edge position of the target area, since the temperature increase rate is slower in the edge position of the target area compared with the middle position of the target area, and the temperature acquisition device 1300 is usually set at the middle position of the screen area, when the temperature control device 1200 controls the temperature adjustment device 1400 corresponding to the target area to adjust the temperature of the target area to meet the refresh requirement, the temperature at the edge position of the target area may not yet meet the refresh requirement.

In order to solve the above problem, in one embodiment of the present invention, the temperature control device 1200 detects the position of the pixel to be refreshed corresponding to the screen refresh event in the target area; and when the position is an edge position of the target area, the temperature control device 1200 controls the temperature adjustment device 1400 corresponding to the target area to adjust the temperature of the target area to reach a first temperature threshold, wherein the first temperature threshold is greater than a lower limit temperature value corresponding to the refresh request.

For example, the lower temperature value corresponding to the refresh request is 0 ℃, and the first temperature threshold is higher than 0 ℃ and lower than 5 ℃.

According to the embodiment of the present invention, even if the temperature increase rate of the edge position of the target area is relatively slow, since the first temperature threshold is greater than the lower limit temperature value corresponding to the refresh request, when the temperature acquisition device 1300 detects that the temperature of the target area reaches the first temperature threshold, it can be ensured that the temperature of the edge position of the target area can reach the refresh request.

To solve the same problem, in an embodiment of the present invention, the method for controlling the temperature of the electronic ink screen may further include: the temperature control device 1200 detects the position of a pixel to be refreshed corresponding to a screen refresh event in a target area; and, when the position is the edge position of the target area, the temperature control device 1200 further controls the temperature adjustment device corresponding to the adjacent area of the target area to adjust the temperature of the adjacent area.

For example, the temperature adjustment device of the adjacent area can be controlled to adjust the temperature of the adjacent area to meet the refresh requirement.

For another example, the temperature adjustment device of the adjacent area may be controlled to adjust the temperature of the adjacent area to reach a second temperature threshold, where the second temperature threshold is smaller than the lower limit temperature value corresponding to the refresh requirement.

According to the embodiment of the invention, the temperature of the adjacent areas is adjusted at the same time for assistance, so that the temperature rise rate of the edge position of the target area is basically consistent with the temperature rise rate of the center position, the temperature of the center position of the target area is further ensured to be basically consistent with the temperature of the edge position, and the accuracy of temperature adjustment is improved.

In an embodiment of the present invention, before the temperature adjustment device 1400 corresponding to the control target area adjusts the temperature of the target area to meet the refresh requirement, the temperature control device 1200 controls the temperature adjustment device corresponding to each screen area to adjust the temperature of each screen area to reach a second temperature threshold, where the second temperature threshold is smaller than the lower limit temperature value corresponding to the refresh requirement.

According to the embodiment of the invention, uneven heating caused by independently heating the target area under an undercooling environment can be prevented, and further damage to the glass substrate of the electronic ink screen caused by uneven heating can be prevented.

in step S3500, the temperature control device 1200 turns off the temperature adjustment device 1400 after controlling the temperature adjustment device 1400 to adjust the temperature of the electronic ink screen 1100 to meet the refresh requirement.

For example, before the electronic ink screen 1100 performs the partial refresh operation, the temperature control device 1200 controls the temperature adjustment device 1400 corresponding to the target area to adjust the temperature of the target area to meet the refresh requirement, and then closes the temperature adjustment device 1400 corresponding to the target area.

For another example, before the electronic ink screen 1100 performs the full screen refresh operation, the temperature control device 1200 controls each temperature adjustment device 1400 to adjust the temperature of each screen region to meet the refresh requirement, and then closes the temperature adjustment device 1400 corresponding to each screen region.

In one embodiment of the present invention, an electronic ink screen display device may be provided with two temperature control modes. One is a low power consumption temperature control mode and the other is a low latency response temperature control mode. The user can select a corresponding temperature control mode according to the self requirement.

In this embodiment, the method for controlling the temperature of the electronic ink screen may further include the steps of:

in step S3600, temperature control device 1200 detects a current temperature control mode.

In this embodiment, the temperature control apparatus 1200 performs the step S3200 only when the temperature control mode is the low power consumption temperature control mode, that is, performs the step of detecting whether the temperature of the electronic ink screen reaches the refresh requirement according to the detection result of the screen refresh event, and further performs the step S3300 when the temperature of the electronic ink screen does not reach the refresh requirement.

When the temperature control mode is the low-delay response temperature control mode, the temperature control device 1200 will control the temperature adjustment device 1400 to be in the working state of continuous adjustment of the whole screen, or in the working state of intermittent adjustment, so as to ensure that the temperature of the electronic ink screen always meets the refresh requirement. When a screen refreshing event occurs, the screen refreshing operation is directly executed, and the refreshing instruction corresponding to the screen refreshing event is ensured to be responded in real time.

For example, the temperature control device 1200 is in an intermittently adjusted operating state. The temperature adjustment device 1400 is a heating device. The temperature control device 1200 controls the heating device to perform a heating operation on the electronic ink panel 1100. When the temperature of the electronic ink screen 1100 is higher than the temperature corresponding to the refresh request, the temperature control device 1200 turns off the heating device and detects the temperature of the electronic ink screen 1100 in real time. When the temperature of the electronic ink screen 1100 is lower than the temperature corresponding to the refresh request, the temperature control device 1200 restarts the heating device to control the heating device to perform the heating operation on the electronic ink screen 1100. The above steps are repeated, so that the temperature of the electronic ink screen 1100 always reaches the refreshing requirement.

< example 1>

In this example 1, the electronic ink screen 1100 is divided into at least two screen areas, and each screen area corresponds to one temperature adjustment device 1400. In this example 1, the temperature adjustment device 1400 includes a heating device.

According to fig. 4, in this example, the method for controlling the temperature of the electronic ink screen may include the following steps:

in step S4010, temperature control apparatus 1200 detects a screen refresh event.

In step S4020, the temperature control apparatus 1200 acquires a screen image to be displayed corresponding to the screen refresh event.

In step S4030, the temperature control device 1200 compares the screen image to be displayed with the currently displayed screen image to obtain a comparison result.

Step S4040, the temperature control device 1200 obtains, according to the comparison result, the screen region where the pixel to be refreshed corresponding to the screen refresh event is located, and takes the screen region where the pixel is located as the target region.

In step S4050, the temperature control device 1200 detects whether the temperature of the target area meets the refresh request.

In step S4060, when the temperature of the target area does not reach the refresh request, the temperature control device 1200 controls the temperature adjustment device 1400 corresponding to the target area to heat the target area so that the temperature of the target area reaches the refresh request.

In step S4070, the temperature control apparatus 1200 notifies the refresh control apparatus of the electronic ink screen to control the electronic ink screen 1100 to perform the screen refresh operation.

In further examples, the temperature adjustment device 1400 may include a heating device and a cooling device. In this further example, the above step S4060 may be replaced with: when the temperature of the target area does not reach the refresh requirement, if the temperature of the target area is higher than the upper limit value of the temperature defined by the refresh requirement, the temperature control device 1200 controls the temperature adjustment device 1400 corresponding to the target area to cool the target area, so that the temperature of the target area reaches the refresh requirement; if the temperature of the target area is lower than the lower temperature limit value defined by the refresh requirement, the temperature control device 1200 controls the temperature adjustment device 1400 corresponding to the target area to heat the target area, so that the temperature of the target area meets the refresh requirement.

< temperature control apparatus embodiment >

Fig. 5 is a schematic block diagram of a temperature control apparatus 1200 according to an embodiment of the present invention.

As shown in FIG. 5, the temperature control apparatus 1200 of an embodiment of the present invention may include a screen refresh event detection module 5010, a temperature detection module 5020 and a control module 5030.

The screen refresh event detection module 5010 is configured to detect a screen refresh event and obtain a detection result.

The temperature detection module 5020 is used for detecting whether the temperature of the electronic ink screen meets the refreshing requirement according to the detection result of the screen refreshing event.

The control module 5030 is configured to control the temperature adjustment device 1400 to adjust the temperature of the electronic ink screen 1100 to meet the refresh requirement before the screen refresh operation is performed when the temperature of the electronic ink screen 1100 does not meet the refresh requirement.

In one embodiment of the present invention, the electronic ink screen 1100 is divided into at least two screen areas, and each screen area corresponds to one temperature adjustment device 1400. In this embodiment, the temperature control apparatus 1200 may further include a target region acquisition module (not shown in the figure).

The target area acquisition module is used for acquiring a screen area where a pixel to be refreshed corresponding to a screen refreshing event is located, and taking the screen area where the pixel is located as a target area.

In this embodiment, the temperature detecting module 5020 can be used to detect the temperature of the target area and notify the control module 5030 to control the temperature adjusting device 1400 corresponding to the target area to adjust the temperature of the target area to meet the refresh requirement when the temperature of the target area does not meet the refresh requirement.

In an embodiment of the present invention, the target area acquiring module may further include a to-be-displayed screen image acquiring unit, a comparing unit, and a target area acquiring unit (not shown in the figure).

The screen image to be displayed acquisition unit is used for acquiring a screen image to be displayed corresponding to the screen refreshing event.

The comparison unit is used for comparing the screen image to be displayed with the currently displayed screen image to obtain a comparison result.

The target area obtaining unit is used for obtaining a screen area where a pixel to be refreshed corresponding to the screen refreshing event is located according to the comparison result, and taking the screen area where the pixel is located as the target area.

In one embodiment of the present invention, the screen refresh event detection module 5010 may also be configured to detect the position of the pixel to be refreshed corresponding to the screen refresh event in the target area. When the position of the pixel to be refreshed corresponding to the screen refresh event is the edge position of the target region, the screen refresh event detection module 5010 notifies the control module 5030 to control the temperature adjustment device corresponding to the adjacent region of the target region to adjust the temperature of the adjacent region.

In an embodiment of the invention, when the position of the pixel to be refreshed corresponding to the screen refresh event is the edge position of the target area, the screen refresh event detection module 5010 notifies the control module 5030 to control the temperature adjustment device 1400 corresponding to the target area to adjust the temperature of the target area to reach a first temperature threshold, where the first temperature threshold is greater than the lower limit temperature value corresponding to the refresh requirement.

In an embodiment of the invention, the control module 5030 may be further configured to control the temperature adjustment device 1400 corresponding to each screen area to adjust the temperature of each screen area to reach a second temperature threshold before the temperature adjustment device 1400 corresponding to the control target area adjusts the temperature of the target area to reach the refresh requirement, where the second temperature threshold is smaller than the lower limit temperature value corresponding to the refresh requirement.

In an embodiment of the invention, the control module 5030 may further be configured to turn off the temperature adjustment device 1400 after the temperature adjustment device adjusts the temperature of the electronic ink screen 1100 to meet the refresh requirement.

In one embodiment of the present invention, an electronic ink screen display device is configured with two temperature control modes. One is a low power consumption temperature control mode and the other is a low latency response temperature control mode. And the user sets a required temperature control mode according to the self requirement.

In this embodiment, the temperature control apparatus 1200 may further include a temperature control mode detection module.

The temperature control mode detection module is used for detecting the current temperature control mode.

When the temperature control mode is the low power consumption temperature control mode, the temperature control apparatus 1200 performs an operation of detecting whether the temperature of the electronic ink screen 1100 meets the refresh requirement according to the detection result of the screen refresh event.

When the temperature control mode is the low-latency response temperature control mode, the control module 5030 of the temperature control device 1200 is configured to control the temperature adjustment device 1400 to be in a working state of continuous adjustment of the whole screen, so as to ensure that the temperature of the electronic ink screen 1100 always meets the refresh requirement.

< example of temperature adjustment apparatus >

In one embodiment of the present invention, the temperature adjustment device 1400 may include a first heating module disposed on the front surface of the electronic ink screen 1100.

In one embodiment of the present invention, the temperature adjustment device 1400 may include a second heating module disposed on the back side of the electronic ink screen 1100.

In one embodiment of the present invention, the temperature adjustment device 1400 may include a first heating module disposed on the front surface of the electronic ink screen 1100 and a second heating module disposed on the back surface of the electronic ink screen 1100.

In the embodiment where the heating modules are disposed on both the front and back sides of the electronic ink screen, the temperature of the electronic ink screen 1100 can quickly meet the refresh requirement.

In one embodiment of the present invention, the first heating module may include a glass substrate coated with an ITO conductive layer and a first heating driving circuit. The ITO conductive layer is connected to a first heating driving circuit through an electrode. The first heating driving circuit is connected to the temperature control device 1200.

In the embodiment of the invention, the ITO conductive layer can be formed on the glass substrate in an etching or sputtering mode.

The ITO conductive layer formed on the glass substrate may cover an effective display area of the electronic ink screen.

The glass substrate may be a soda-lime-based substrate glass or a silicon-boron-based substrate glass.

The ITO conducting layer is uniformly and fully attached to the electronic ink screen through OCA (optically Clear adhesive) optical glue or UV (ultraviolet) light curing glue.

In one embodiment of the present invention, the second heating module includes a circuit board provided with a heating coil and a second heating driving circuit. The heating coil is connected to a second heating driving circuit connected to the temperature control device 1200 through an electrode.

The circuit board may be any one of a PCB circuit board and an FPC circuit board.

For example, the circuit board can be uniformly attached to the electronic ink screen in a full screen mode through the heat conducting glue.

In one embodiment of the invention, the heat insulation film is adhered to the surface of the circuit board, which is not provided with the heating coil, so that the heat loss can be reduced, and the consumption of battery energy can be reduced.

In one embodiment of the present invention, the temperature adjustment device 1400 may include a cooling module disposed on the back side of the electronic ink screen 1100.

In this embodiment, the cooling module may include a circuit board provided with a semiconductor cooling fin, and a cooling driving circuit, wherein a cold end of the semiconductor cooling fin is attached to the back surface of the electronic ink screen 1100. The semiconductor cooling fins are connected to a cooling drive circuit through electrodes, and the cooling drive circuit is connected to the temperature control device 1200. Fig. 6 is an assembly view of an electronic ink screen 1100 according to an embodiment of the present invention, with a glass substrate coated with an ITO conductive layer and a circuit board provided with a heating coil, respectively.

According to the illustration in fig. 6, the glass substrate 610 coated with the ITO conductive layer is uniformly attached to the electronic ink screen 1100 in a full screen manner through the optical adhesive 620.

The circuit board 640 provided with the heating coils is uniformly attached to the electronic ink screen 1100 in a full screen manner through the heat-conducting glue 650.

In one embodiment of the present invention, the electronic ink screen 1100 is divided into at least two screen areas, and the screen areas are configured to correspond to the temperature adjustment devices 1400 one by one.

In this embodiment, the temperature control device 1200 may obtain a screen area where a pixel to be refreshed corresponding to a screen refresh event is located, and take the screen area where the pixel is located as a target area. When the temperature of the target area does not reach the refresh requirement, the temperature control device 1200 controls the temperature adjustment device 1400 corresponding to the target area to adjust the temperature of the target area to reach the refresh requirement, so that the temperature of other screen areas except the target area does not need to be adjusted, and the power consumption is reduced.

FIG. 7 is a diagram illustrating a division of an electronic ink screen 1100 into a plurality of screen regions, according to an embodiment of the present invention.

As shown in fig. 7, the hatched, dashed boxes represent the active display area 710 of the electronic ink screen 1100. The effective display area 710 of the electronic ink screen 1100 is evenly divided into eight screen areas.

Each screen area corresponds to a separate temperature adjustment device 1400, i.e. in the embodiment shown in FIG. 7, eight temperature adjustment devices 1400 are provided.

In one embodiment of the present invention, each temperature adjustment device 1400 includes a first heating module disposed on the front surface of the electronic ink screen 1100.

For each temperature adjustment device 1400, the first heating module includes a first heating driving circuit and a glass substrate covered with an ITO conductive layer 720.

The ITO conductive layer 720 of each temperature adjustment device 1400 is in the shape of a strip with the same size. The ITO conductive layers 720 of all temperature adjustment devices 1400 may be coated on the same glass substrate.

Each ITO conductive layer 720 completely covers the corresponding screen area to achieve overall heating of the corresponding screen area.

In one embodiment of the present invention, the size of each ITO conductive layer 720 in the width direction of the electronic ink screen 1100 may be larger than the size of the effective display area 710 in the same direction.

In one embodiment of the present invention, each temperature adjustment device 1400 may include a second heating module disposed on the back side of the electronic ink screen 1100.

For each temperature adjustment device 1400, the second heating module includes a second heating driving circuit and a circuit board provided with a heating coil.

The heating coils of the second heating modules may have the same size. The heating coils of the second heating modules may be disposed on the same circuit board.

In one embodiment of the present invention, each temperature adjustment device 1400 includes a cooling module disposed on the back side of the electronic ink screen 1100.

For each temperature control device 1400, the cooling module includes a cooling drive circuit and a circuit board provided with semiconductor cooling fins.

The semiconductor cooling fins of each cooling module may be provided on the same circuit board.

In the embodiment in which the cooling module and the second heating module are provided at the same time, the semiconductor cooling fins of each cooling module and the heating coils of each second heating module may be provided on the same circuit board.

Fig. 8 is a circuit diagram of a temperature adjustment device 1400 according to an embodiment of the invention.

In the embodiment shown in fig. 8, the electronic ink screen 1100 is divided into four screen areas, and four temperature adjustment devices 1400 are provided.

As shown in fig. 8, the ITO conductive layers of the first heating module of the four temperature adjustment devices 1400 are formed on the glass substrate 801, which are an ITO conductive layer 802a, an ITO conductive layer 802b, an ITO conductive layer 802c, and an ITO conductive layer 802 d.

Fig. 8 shows the first heating driving circuit of the first heating module of the temperature adjustment device 1400, the first heating driving circuit includes power switches, and the power switches of the four first heating driving circuits are respectively a power switch 803a, a power switch 803b, a power switch 803c, and a power switch 803 d.

The first heating driving circuits of the four temperature adjustment devices 1400 share the voltage converter 804 and the battery 805, wherein the voltage converter 804 is used for providing an operating voltage for converting the output voltage of the battery 805 into an operating voltage matched with the heating power of the ITO conductive layer.

In this embodiment, power switches 803a, 803b, 803c and 803d are all connected to voltage converter 804. The voltage converter 804 is connected to a battery 805.

In this embodiment, the ITO conductive layers 802a, 802b, 802c, and 802d are respectively connected to the power switches 803a, 803b, 803c, and 803d in a one-to-one correspondence.

Fig. 8 shows heating coils of the second heating module of the four temperature adjustment devices 1400, which are a heating coil 807a, a heating coil 807b, a heating coil 807c, and a heating coil 807d formed on the PCB 806.

A temperature sensor 808a, a temperature sensor 808b, a temperature sensor 808c, and a temperature sensor 808d are provided at intermediate positions of respective surrounding areas of the heating coil 807a, the heating coil 807b, the heating coil 807c, and the heating coil 807d, respectively, and these temperature sensors constitute a temperature acquisition device 1300 of the electronic ink panel display apparatus.

Each temperature sensor is configured to measure a temperature of its corresponding screen area, and send the measured temperature to the temperature control device 1200.

Fig. 8 shows a second heating driving circuit of the second heating module of the temperature adjustment device 1400, the second heating driving circuit includes power switches, and the power switches of the four second heating driving circuits are respectively a power switch 803e, a power switch 803f, a power switch 803g and a power switch 803 h.

The heating coils 807a, 807b, 807c, and 807d are connected to the power switches 803e, 803f, 803g, and 803h, respectively, in a one-to-one correspondence.

In this embodiment, power switch 803e, power switch 803f, power switch 803g and power switch 803h are all connected to voltage converter 809. The voltage converter 809 is connected to the battery 805. The voltage converter 809 is used for converting the voltage output by the battery 805 into an operating voltage adapted to the heating power of the heating coil.

The voltage converter 804 and the voltage converter 809 may be DC-DC converters.

The temperature control device 1200 is configured to control energization of each power switch, and then start or close the corresponding first heating module or the corresponding second heating module through each power switch, so as to adjust the temperature of the electronic ink screen 1100.

For example, the pixel to be refreshed corresponding to the screen refresh event is located at the screen region corresponding to the ITO conductive layer 802a and the heating coil 807 a. The temperature control device 1200 acquires the temperature of the screen area from the temperature sensor 808 a. When the temperature of the screen region does not reach the refresh request, the temperature control device 1200 controls the power switch 803a and the power switch 803e to be energized, so that the ITO conductive layer 802a and the heating coil 807a heat the screen region, and the temperature of the screen region reaches the refresh request.

Each power switch is integrated with an overcurrent protection alarm function.

For example, when the resistance value of the ITO conductive layer or the heating coil is greatly decreased or short-circuited, the power switch may be automatically turned off while transmitting a signal for interrupting the heating to the temperature control device 1200.

In the embodiment where the temperature adjustment device 1400 is provided with a cooling module, the structure of the cooling module can refer to the structure of the second heating module, and is not described herein again.

< temperature acquisition apparatus embodiment >

The temperature acquisition device 1300 may include a temperature sensor. The temperature sensor may include any one or more of a thermistor temperature sensor, a digital temperature sensor, and the like.

When the thermistor temperature sensor is used, the temperature of the electronic ink panel 1100 measured by the thermistor temperature sensor is processed by an analog-to-digital converter (ADC) and then transmitted to the temperature control device 1200.

When a digital temperature sensor is used, the temperature of the electronic ink screen 1100 measured by the digital temperature sensor is directly transmitted to the temperature control device 1200.

Taking the temperature sensor 808a as an example, the temperature sensor 808a is provided at an intermediate position of the region surrounded by the heating coil 807a as shown in fig. 9. The temperature sensor 808a is attached to the electronic ink screen 1100 through a thermal conductive adhesive. The PCB 806 around the temperature sensor 808a is hollowed out, the hollowed out area being 806 a. This prevents the heating coil 807a from transferring heat through the PCB circuit board 806, interfering with the temperature sensor 808a measuring the temperature of the screen area.

The temperature sensor 808a is connected to the temperature control device 1200 through an FPC cable.

In an embodiment of the present invention, when the temperature of the electronic ink screen 1100 measured by the temperature acquisition device 1300 is too high, or when the temperature difference of each screen area of the electronic ink screen 1100 measured by each temperature acquisition device 1300 is large, a heating interruption signal is sent to the temperature control device 1200, so as to avoid the screen damage caused by too high temperature or large temperature difference.

< example 2>

Referring to fig. 10, in this example, the electronic ink screen 1100 adopts a partial refresh mode, and a specific signal processing procedure may include the following steps:

in step S1010, the temperature control device 1200 detects a screen refresh event.

In step S1020, the temperature control apparatus 1200 obtains a screen image to be displayed corresponding to the screen refresh event.

In step S1030, the temperature control apparatus 1200 compares the screen image to be displayed with the currently displayed screen image to obtain a comparison result.

In step S1040, the temperature control device 1200 obtains the screen area where the pixel to be refreshed in the screen refresh event is located according to the comparison result, and takes the screen area where the pixel is located as the target area.

In step S1050, the temperature control device 1200 obtains the temperature of the target region from the temperature acquisition device 1300 corresponding to the target region.

In step S1060, temperature control device 1200 detects whether or not the temperature of the target area meets the refresh request.

In step S1070, when the temperature of the target area does not reach the refresh request, the temperature control device 1200 controls the temperature adjustment device 1400 corresponding to the target area to heat the target area so that the temperature of the target area reaches the refresh request.

In step S1080, the temperature control device 1200 notifies the refresh control device of the electronic ink screen 1100 to control the electronic ink screen 1100 to perform the screen refresh operation.

In step S1090, the electronic ink screen 1100 performs a screen refresh operation.

In another example, the electronic ink screen 1100 may also adopt a global refresh mode, and the specific refresh mode may be determined according to a screen refresh event, or according to a refresh command triggered by the screen refresh event, for example, an identifier of the refresh mode is carried in the refresh command.

In the global refresh mode, the temperature control apparatus 1200 needs to detect whether the temperature of each screen area of the electronic ink screen 1100 meets the refresh requirement; and for the screen area which does not reach the refreshing requirement, before the screen refreshing operation is executed, the corresponding temperature adjusting device is controlled to adjust the temperature of the screen area to reach the refreshing requirement.

The present invention may be a system, method and/or computer program product. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied therewith for causing a processor to implement various aspects of the present invention.

The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.

The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.

The computer program instructions for carrying out operations of the present invention may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, aspects of the present invention are implemented by personalizing an electronic circuit, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA), with state information of computer-readable program instructions, which can execute the computer-readable program instructions.

Aspects of the present invention are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.

These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.

The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, by software, and by a combination of software and hardware are equivalent.

Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the invention is defined by the appended claims.

Claims

1. A temperature control method of an electronic ink screen is characterized by comprising the following steps:

detecting a screen refreshing event to obtain a detection result;

when the temperature of the electronic ink screen does not reach the refreshing requirement, controlling a temperature adjusting device to adjust the temperature of the electronic ink screen to reach the refreshing requirement before executing screen refreshing operation;

wherein the method further comprises:

detecting the temperature of the target area;

2. The method according to claim 1, wherein the step of obtaining a screen area where a pixel to be refreshed corresponding to the screen refresh event is located and taking the screen area where the pixel is located as a target area comprises:

3. The method of claim 1, further comprising:

4. The method of claim 1, further comprising:

5. The method according to claim 1, wherein before controlling the temperature adjustment device corresponding to the target area to adjust the temperature of the target area to meet the refresh requirement, the method further comprises:

6. The method according to any one of claims 1-5, further comprising:

7. The method according to any one of claims 1-5, further comprising:

detecting a current temperature control mode;

8. A temperature control device for an electronic ink screen, comprising:

the control module is used for controlling the temperature adjusting device to adjust the temperature of the electronic ink screen to meet the refreshing requirement before the screen refreshing operation is executed when the temperature of the electronic ink screen does not meet the refreshing requirement;

the electronic ink screen is divided into at least two screen areas, each screen area corresponds to one temperature adjusting device, and each temperature adjusting device further comprises a target area obtaining module;

the target area acquisition module is used for acquiring a screen area where a pixel to be refreshed corresponding to a screen refreshing event is located and taking the screen area where the pixel is located as a target area;

the temperature detection module is used for detecting the temperature of the target area and informing the control module to control the temperature adjusting device corresponding to the target area to adjust the temperature of the target area so as to meet the refresh requirement when the temperature of the target area does not meet the refresh requirement.

9. A temperature control apparatus for an electronic ink screen, comprising a memory and a processor, wherein the memory is configured to store instructions for controlling the processor to operate so as to execute the temperature control method for an electronic ink screen according to any one of claims 1 to 7.

10. An electronic ink screen display device, comprising: electronic ink screen, temperature acquisition device, temperature adjustment device, and temperature control device of electronic ink screen according to claim 8 or 9,

11. The electronic ink screen display device of claim 10, wherein the electronic ink screen is divided into at least two screen regions, and the screen regions, the temperature adjustment device, and the temperature acquisition device are configured in a one-to-one correspondence with each other.

12. The electronic ink screen display device of claim 10, wherein the temperature adjustment device comprises either one or both of a first heating module and a second heating module, wherein the first heating module is disposed on a front side of the electronic ink screen, and the second heating module is disposed on a back side of the electronic ink screen.

13. The electronic ink screen display device of claim 10,

the temperature adjusting device comprises a first heating module, and the first heating module is arranged on the front surface of the electronic ink screen;

the first heating module comprises a glass substrate covered with an ITO conductive layer and a first heating driving circuit,

14. The electronic ink screen display device of claim 10,

the temperature adjusting device comprises a second heating module, and the second heating module is arranged on the back of the electronic ink screen;

the second heating module comprises a circuit board provided with a heating coil and a second heating driving circuit,