WO2020042545A1

WO2020042545A1 - Method and device for refreshing image on ink screen of dual-screen terminal

Info

Publication number: WO2020042545A1
Application number: PCT/CN2019/075373
Authority: WO
Inventors: 修平; 梅正怡
Original assignee: 青岛海信移动通信技术股份有限公司
Priority date: 2018-08-30
Filing date: 2019-02-18
Publication date: 2020-03-05
Also published as: CN109243376B; CN109243376A

Abstract

A method and a device for refreshing the image on an ink screen of a dual-screen terminal, used for solving the problem in the prior art of the lack of variation of refresh methods of ink screens of dual-screen terminals on Android devices. A terminal first determines a sliding speed on the basis of a sliding operation of a user on an ink screen (200); then, on the basis of the corresponding relationship of speed ranges and refresh modes, determines a refresh mode corresponding to the speed range to which the sliding speed belongs (201); and, on the basis of the determined refresh mode, refreshes the image of the ink screen (202). Compared to refreshing an ink screen according to a refresh rate determined by the refresh capability of the ink screen, the embodiments of the present disclosure determine a sliding speed on the basis of a sliding operation of a user finger on the ink screen and determine the use of different refresh modes on the basis of the determined sliding speed, thereby implementing relatively flexible image refreshing on an ink screen.

Description

Method and device for refreshing image on ink screen of dual-screen terminal

This application claims priority from a Chinese patent application filed on August 30, 2018 with the Chinese Patent Office, application number 201811005922.6, and application name "A Method and Device for Refreshing Images on an Ink Screen", the entire contents of which are hereby incorporated by reference Incorporated in this application.

Technical field

The present disclosure relates to the field of display technology, and in particular, to a method and device for refreshing an image on an ink screen of a dual-screen terminal.

Background technique

Ink screen is a screen using electronic ink, also known as electronic paper display technology. It is a new display method developed in the last ten years. Its basic structure is coated with countless tiny particles on two substrates. These positively and negatively charged particles are sealed in liquid particle capsules. By adding an electric field, the movement of charged ink particles can be controlled, so that the screen displays a different Patterns and text.

Summary of the Invention

The present disclosure provides a method and device for refreshing an image on an ink screen of a dual-screen terminal, so as to solve the problem that the refresh method of the ink screen on an Android device is relatively rigid.

An embodiment of the present disclosure provides a method for refreshing an image on an ink screen of a dual-screen terminal. The method includes:

The terminal determines the sliding speed according to a user's sliding operation on the ink screen, wherein the terminal includes a main body, a color display screen located on a first surface of the main body, and a second screen located on the main body opposite to the first surface. The ink screen on the surface; the terminal determines the refresh mode corresponding to the speed range to which the sliding speed belongs according to the correspondence between the speed range and the refresh mode; the terminal refreshes the image delivered by the application to the ink screen according to the determined refresh mode .

In the above method, the terminal first determines the sliding speed according to the user's sliding operation on the ink screen; then determines the refresh mode corresponding to the speed range to which the sliding speed belongs according to the correspondence between the speed range and the refresh mode; and then according to the determined refresh To refresh the image on the ink screen. Compared to refreshing to the ink screen according to the refresh rate determined by the ink screen refresh capability, in the embodiment of the present disclosure, the sliding speed is determined according to the sliding operation of the user's finger on the ink screen, and then different refresh methods are determined according to the determined sliding speed. , So it can be more flexible to refresh the image on the ink screen.

In some embodiments, in response to the sliding speed being less than a first threshold, the refresh method is to refresh the image onto the ink screen with a refresh frequency that is lower than a preset refresh frequency.

In some embodiments, in response to the sliding speed being not less than a first threshold, the refresh method is to refresh a frame of the user's image at the moment of the sliding operation of the ink screen onto the ink screen.

In some embodiments, the sliding speed is less than a first threshold, and the terminal determines a refresh frequency to be adopted in the following manner:

Determining, by the terminal, a step size of the sliding according to the sliding speed;

The terminal subtracts the step size value from the preset refresh frequency to obtain the adopted refresh frequency.

In some embodiments, the terminal refreshing the image on the ink screen with a refresh frequency lower than a preset refresh frequency includes:

In response to the time when the time required to refresh the image to the ink screen arrives, the terminal's application is transmitting a new image to the ink screen, then the terminal refreshes the new image to the ink screen, and the new image is the terminal's current The image being delivered at the moment.

In response to the terminal's application not delivering a new image to the ink screen when the time required to refresh the image to the ink screen arrives, the terminal refreshes the last delivered image to the ink screen.

In some embodiments, the first threshold is set according to the number of pixels in each inch of the ink screen.

According to a second aspect, an embodiment of the present disclosure further provides a dual-screen mobile device including a main body, a color display screen located on a first surface of the main body, and a second surface of the main body opposite to the first surface. An ink screen, and a memory and a processor, wherein the memory is configured to store computer instructions and data associated with the ink screen and a color display; and the processor is configured to execute the computer instructions to cause the computer The dual-screen mobile device implements the functions of the embodiments of the first aspect described above.

In a third aspect, an embodiment of the present disclosure further provides a dual-screen mobile device. The device includes a first determination module, a second determination module, and a refresh module. The device has functions for implementing the embodiments of the first aspect described above.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of the present application more clearly, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings according to these drawings without paying creative labor.

FIG. 1 is a schematic diagram of functions implemented by a terminal for refreshing an image on an ink screen of a dual-screen terminal according to an embodiment of the present disclosure;

2 is a schematic flowchart of a method for refreshing an image on an ink screen of a dual-screen terminal according to an embodiment of the present disclosure;

3 is a schematic flowchart of a method for refreshing an image on an ink screen of a dual-screen terminal according to an embodiment of the present disclosure;

4 is a schematic structural diagram of a first dual-screen mobile device according to an embodiment of the present disclosure;

5 is a schematic structural diagram of a second dual-screen mobile device according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a third dual-screen mobile device according to an embodiment of the present disclosure.

detailed description

In order to make the objectives, technical solutions, and advantages of the present disclosure clearer, the present disclosure will be described in further detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, but not all of the embodiments. . Based on the embodiments in the present disclosure, all other embodiments obtained by a person having ordinary skill in the art without making creative efforts fall within the protection scope of the present disclosure.

Due to the characteristics of the ink screen in dual-screen mobile devices, the ink screen refresh rate is slow and the display cannot be refreshed quickly. Therefore, on Android devices, when the display screen content is updated, the image data will be at a relatively high frame rate. To the LCD, for example (30 to 60 frames). On the Android device equipped with the ink screen, the refresh speed of the ink screen is insufficient, and the image data sent to the ink screen by the terminal application is refreshed according to the refresh capability of the ink screen. In specific implementation, the first frame of image data is refreshed to the ink screen, and all image data sent to the ink screen during the refresh of this frame is automatically discarded; after the first frame of image is refreshed, it is sent to the ink screen again. Refresh a frame of image being transmitted, and automatically discard all image data delivered to the ink screen during the process of refreshing this frame of image; in this way, the image data is finally refreshed to the ink screen at the refresh rate determined by the ink screen refresh capability.

However, when the user does not pay attention to the process of updating the display screen content, and only cares about the last displayed result, the Android device still fixes the image data to the ink screen at a refresh rate determined by the ink screen refresh capability, and cannot change the ink screen flexibly. Refresh method to meet the needs of users.

An embodiment of the present disclosure provides a method for refreshing an image on an ink screen of a dual-screen terminal. Specifically, the method can be applied to a dual-screen mobile device. In the dual-screen mobile device of the present disclosure, a screen and a speaker are provided on two sides facing each other, so that both sides have functions of display, touch operation, and answering. In practice, there are two cases, one is that both sides of the front and back are liquid crystal or OLED (Organic Light Emitting Display) and other displays; the other is that one side is a liquid crystal or OLED display, and the other is Ink screen. For the convenience of description, one side of the display screen is called a primary screen and the other is called a secondary screen. In this method, the terminal needs to compare the output frame rate of the terminal application with a set frame rate threshold, and determine the refresh method of the image on the terminal ink screen according to the sliding speed determined by the user's finger sliding operation on the terminal ink screen.

If it is determined that the output frame rate of the current application is not higher than the set frame rate, the terminal refreshes the image on the ink screen with a refresh frequency lower than a preset refresh frequency; or

If it is determined that the current output frame rate is higher than the set frame rate and the sliding speed is less than the first threshold, the terminal refreshes the image onto the ink screen with a refresh frequency lower than a preset refresh frequency; or

If it is determined that the current output frame rate is higher than the set frame rate and the sliding speed is not less than the first threshold, the terminal refreshes a frame of the user's image at the moment when the sliding operation of the ink screen ends.

As shown in FIG. 1, in specific implementation, after the user issues an instruction through a sliding operation, the terminal first refreshes the first frame image to the ink screen after detecting the user's sliding operation;

Then divided into two channels to perform touch analysis processing and image analysis processing respectively;

Among them, when performing touch behavior analysis all the way, it is necessary to analyze and determine the sliding speed according to the distance that the user slides on the ink screen, so as to facilitate the subsequent determination of the refresh method;

In the other way, for image data analysis, after receiving the user instruction, the terminal analyzes and processes the image data generated and transmitted by the terminal application, determines the output frame rate of the current terminal, and buffers each frame of image data during the refresh of the image. For refresh use;

After the analysis of the user's touch operation is completed, and after the analysis and processing of the image data generated by the terminal application is completed, the specific refresh method is determined according to the output frame rate of the current terminal determined by the image processing analysis and the sliding speed determined by the sliding operation analysis. ;

Then refresh the required image to the ink screen according to the refresh method.

In specific implementation, after receiving a user's instruction, the terminal will trigger the application to generate corresponding image data and continuously transmit the generated image data to the display device. Most of the current display devices are LCD screens, which have strong refresh capabilities. All the image data transmitted from the terminal application can be displayed on the screen without processing the transmitted image data.

For a terminal equipped with an ink screen, since the refresh capability of the ink screen is much lower than the speed at which the application on the terminal generates image data, when the ink screen is applied for display, after the terminal receives the user's instruction, the terminal's The application will generate the corresponding image data and continuously transmit the generated image data to the ink screen, but the ink screen can only refresh and display the image in the image data transmitted by the terminal application according to its refresh capability.

For example, the refresh rate on the ink screen mounted on the terminal is refreshed every 0.5s. When the terminal receives a user instruction and triggers an application on the terminal to output an image at a rate of 20 frames per second, the application on the terminal sequentially transmits the first to the ink screen. 1 frame image, 2 frame image, ..., 10 frame image, 11 frame image, ..., 20 frame image, 21 frame image, ..., then:

When the terminal application sends the first frame to the ink screen, the ink screen refreshes and displays the image transmitted by the terminal application.

When the terminal application sends the second frame to the tenth frame to the ink screen, the ink screen is refreshing the first frame image. The second frame to the tenth frame image cannot be processed, so these images are discarded and not refreshed. ;

When the terminal application sends the 11th frame to the ink screen, the refresh of the first frame image is completed, and the ink screen refreshes and displays the image transmitted by the terminal application.

When the terminal application sends the 12th to 20th images to the ink screen, the ink screen is refreshing the first frame image, and the 12th to 20th frame images cannot be processed. Therefore, the ink screen discards these images and does not perform Refresh

Repeatedly to refresh the display image on the ink screen.

In addition, compared to the ink screen itself, the maximum refresh frequency of the ink screen is determined according to its refresh capability, and the maximum refresh frequency is used as a preset refresh frequency.

As shown in FIG. 2, an embodiment of the present disclosure provides a method for refreshing an image on an ink screen of a dual-screen terminal. The method includes:

Step 200: The terminal determines a sliding speed according to a user's sliding operation on the ink screen. The terminal includes a main body, a color display screen located on a first surface of the main body, and a position opposite to the first surface of the main body. Ink screen on the second surface;

Step 201: The terminal determines the refresh mode corresponding to the speed range to which the sliding speed belongs according to the correspondence between the speed range and the refresh mode.

Step 202: The terminal refreshes the image delivered by the application to the ink screen according to the determined refresh mode.

In the above method, the terminal first determines the sliding speed according to the user's sliding operation on the ink screen; then determines the refresh mode corresponding to the speed range to which the sliding speed belongs according to the correspondence between the speed range and the refresh mode; and then according to the determined refresh To refresh the image on the ink screen. Compared to refreshing to the ink screen according to the refresh rate determined by the ink screen refresh capability, in the embodiment of the present disclosure, the sliding speed is determined according to the sliding operation of the user's finger on the ink screen, and then different refreshing is determined according to the determined sliding speed. Method, so it can be more flexible to refresh the image on the ink screen.

A detailed detailed description of the embodiments of the present disclosure will be given below.

In specific implementation, the user is first required to give an instruction, and then the ink screen is triggered to refresh the image.

In specific implementation, when the terminal detects the sliding operation of the user's finger on the ink screen, the first frame image data output by the terminal application is directly refreshed to the ink screen.

While refreshing the first frame of image data to the ink screen, the terminal obtains the output frame rate of the current terminal application in real time and analyzes the sliding speed of the user's finger on the ink screen.

1. The terminal obtains the current frame rate in real time.

In specific implementation, the terminal needs to determine a specific refresh mode according to the acquired current frame rate.

The terminal first needs to calculate the current frame rate according to the image output data, and then can determine a specific refresh mode based on the acquired current frame rate.

E.g:

The terminal determines that the time interval between the output of a frame of the current image and the output of the previous frame is 0.02s, and then determines that the current output frame rate of the terminal is 1 ÷ 0.02 = 50 frames per second.

After calculating the current output frame rate, the terminal compares the determined current output frame rate with a set frame rate.

First, the current output frame rate is not greater than the set frame rate.

Specifically, if it is determined that the output frame rate of the current application is not greater than the set frame rate, the terminal refreshes the image on the ink screen with a refresh frequency lower than a preset refresh frequency.

In the above method, when the terminal determines that the output frame rate of the current application is not greater than a set threshold, it can be considered that the change of the output image of the current terminal is relatively small, and the image frames in between are discarded within a reasonable set time interval. Does not affect the final image displayed on the ink screen.

For example, the preset refresh frequency of the ink screen mounted on the terminal is 3 frames per second. When the output frame rate of the current application is set to be not greater than the set frame rate, the terminal will constantly refresh the image to the refresh rate of 1 frame per second. Ink screen.

Because the terminal determines that the output frame rate of the current application is 20 frames per second, and the set output frame rate threshold is 30 frames per second, it is determined that the output frame rate of the current application is 20 frames per second less than the set frame rate of 30 frames per second. Therefore, it can be determined that the current state meets the condition that the current output frame rate is not greater than the set frame rate, and the terminal refreshes the image to the ink screen at a refresh rate of 1 frame per second.

If the terminal equipped with the ink screen has insufficient refresh speed, it will refresh the image to the ink screen with the maximum refresh capability of the ink screen, and then refresh the image to the ink screen with a refresh frequency of 2-6 frames per second. In the specific implementation process, due to the fixed state characteristics of the black and white particles in the ink screen, it is easy to see the imprint of the black particles on the previous page when the image is refreshed on the ink screen, which is commonly known as "afterimage" in the industry.

In order to eliminate the afterimage phenomenon when the ink screen is refreshed, the ink screen provides a refresh method to restore the initial state. That is, the screen is cleared every time an image is updated. This corresponds to refreshing the image to the ink screen at a refresh rate of 2-6 frames per second, especially in scenes such as sliding, scrolling and turning pages, where the image is blurred or flickers violently, which affects the user experience.

In the specific implementation of the embodiment of the present disclosure, when the terminal refreshes an image on the ink screen with a refresh frequency smaller than a preset refresh frequency, since the refresh frequency becomes smaller, the number of refreshes of the image in a fixed period of time decreases, so each refresh The corresponding number of flickers is also reduced accordingly, so the flicker of the ink screen can be greatly reduced while ensuring the sharpness of the image.

E.g:

The terminal determines that the current output frame rate is 20 frames per second, and the set output frame rate threshold is 30 frames per second. The preset refresh frequency of the ink screen mounted on the terminal is 3 frames per second. When the output frame rate is not greater than the set frame rate, the terminal constantly refreshes the image to the ink screen at a refresh rate of 1 frame per second.

In the current state, it is determined that the current output frame rate is 20 frames per second less than the set frame rate of 30 frames per second, so it can be determined that the current state meets the condition that the current output frame rate is not greater than the set frame rate. The refresh frame rate in seconds refreshes the image data delivered by the terminal application to the ink screen.

After the terminal detects the user's sliding operation, the first frame image is refreshed to the ink screen and displayed continuously;

If the time to refresh the image to the ink screen is reached, the terminal's application is sending a new image to the ink screen, flickers to eliminate all image information on the ink screen, and refreshes the image at the current time to the ink screen, and displays it continuously;

When the next time that the image needs to be refreshed to the ink screen arrives, the terminal's application is delivering a new image to the ink screen, flickers to eliminate all image information on the ink screen, and refreshes the image at the current time to the ink screen, and continues display;

This reciprocates until the terminal determines that a certain time to refresh the image to the ink screen is reached. When the terminal application does not send a new image to the ink screen, the last frame image previously saved is refreshed to the ink screen;

Then complete the entire refresh process of refreshing the image on the terminal ink screen.

After determining that the current output frame rate of the terminal is greater than the set frame rate, the refresh mode of the ink screen is further determined according to the sliding speed.

Second, the current output frame rate is greater than the set frame rate.

If it is determined that the current output frame rate is greater than the set frame rate, further analysis of the sliding operation in the user's hand is required to determine the sliding speed, and further processing is performed according to the sliding speed.

In the embodiment of the present disclosure, the determination of the sliding speed is determined based on a report event that occurs at a fixed frequency on the terminal and the distance that the user ’s finger slides.

Before determining the sliding speed and performing further processing based on the sliding speed, first determine a first threshold value for dividing the sliding speed.

Specifically, the first threshold is set according to the number of pixels in each inch of the ink screen.

In specific implementation, generally, the first threshold for dividing fast speed is determined according to the following formula: v _th = dpi ÷ 160 × 10;

Among them, v _th identifies the first threshold of fast and slow division;

dpi refers to the number of pixels per inch of the ink screen;

160 refers to the number of pixels per inch on the screen when dp is equivalent to px;

10 refers to the preset 10 pixels.

For example: the terminal screen ink per inch 320px, i.e. the phone is 320dpi, then _{v th = dpi ÷ 160 × 10} = 320 ÷ 160 × 10 = 20dp.

The above-mentioned first threshold value v _th refers to a distance threshold value between two adjacent reporting points of the terminal. Since the general reporting point event of the terminal reports the position coordinates of the touch point at a fixed frequency set at the factory, the terminal phase can be reported by the terminal. The value of the distance between two adjacent points indicates the speed of sliding.

In addition, a specific speed value can be determined according to the frequency of the reporting point of the terminal.

For example: Android phones have 320px per inch, that is, the phone is 320dpi, the frequency of reporting points by the terminal is 100 times per second, then v _th = dpi ÷ 160 × 10 × 60 ÷ 100 = 320 ÷ 160 × 10 × 60 ÷ 100 = 12dp / s.

Generally, a terminal device reports a point event at a frequency of 90 coordinates per second, 100 coordinates per second, 110 coordinates per second, or 120 coordinates per second. In the embodiments of the present disclosure, the coordinates are reported 100 times per second as an example for description.

In specific implementation, after the terminal determines that the current output frame rate is greater than the set frame rate, the terminal determines the refresh mode corresponding to the speed range to which the sliding speed belongs according to the correspondence between the speed range and the refresh mode.

First, the terminal determines the sliding speed according to the user's sliding operation on the ink screen.

Specifically, the terminal determines a sliding speed according to a user's sliding operation on the ink screen, so that a specific refresh method can be further determined according to the sliding speed.

More specifically, the terminal determines a sliding speed according to a sliding distance of the user on the ink screen in a unit time.

In the above method, the terminal calculates a sliding speed by obtaining a sliding distance of a user on the ink screen, so that a method for refreshing an image on the ink screen can be determined according to the sliding speed.

The following is an example for determining the sliding speed according to the sliding operation of the user's finger on the ink screen.

E.g:

1. The terminal obtains the touch position during the user's finger sliding twice, and then calculates the distance between the two based on the determined position point, and determines the sliding speed according to the determined distance and the frequency of the terminal reporting point.

example:

1. The terminal reports the touch position of the user's finger at a frequency of 100 times per second, and determines that the touch position of the user's finger is obtained at the first report point as (20, 5), and the user's finger is obtained at the second report point The touch position point is (30, 10), then it is determined that the current user's finger sliding speed is:

2. The terminal acquires the touched position of the user's finger according to the set period. According to the detection of the user's sliding operation, the position acquired for the first time and the position acquired for the second time are the required position points. The distance between the users is that the terminal periodically acquires the touched position of the user's finger. At this time, the greater the distance between the position acquired for the first time and the position acquired for the second time, the sliding speed of the user's sliding operation. Faster.

example:

The terminal reports the touch position of the user's finger at a frequency of 100 times per second, and determines that the touch position of the user's finger obtained at the first report is (20, 5), and the touch position of the user's finger is obtained at the second report The point is (30, 10), then the distance amount indicating the current user's finger sliding speed is determined as:

It can be known from the foregoing that after the sliding speed is divided into two types according to the first threshold value, there are also two corresponding refresh methods determined according to the user's sliding speed, and the two methods will be separately described below.

1. If the sliding speed is not less than the first threshold, the refresh method is to refresh a frame of the image on the ink screen by the user at the end of the sliding operation of the ink screen.

In the above method, when the terminal determines that the sliding speed is not less than the first threshold, after the terminal refreshes the first frame image, the terminal refreshes a frame image on the ink screen at the time when the user's sliding operation at the ink screen ends. In this way, in the fast sliding process, only the first frame image and the last frame image need to be refreshed, and the other image data in the middle is discarded. In this entire process, the screen will only be cleared again. So, in clear mode, you can Reduce the number of flashes of the ink screen, thereby improving the user experience.

E.g:

1. The ink screen of the terminal has 320px per inch, that is, the mobile phone is 320dpi, and the terminal reports the touch position of the user's finger at a frequency of 100 times per second. The terminal obtains the touch position of the user's finger for the first time as (20, 5) , The second time to get the touch position of the user's finger is (30, 10), then:

The first threshold value is v _th = dpi ÷ 160 × 10 = 320 ÷ 160 × 10 = 20dp. The terminal determines that the current user's finger sliding speed is:

Therefore, it is determined that the sliding speed of the current user's sliding operation on the ink screen belongs to the fast range, and the terminal refreshes a frame of the user's image on the ink screen on the ink screen.

2. The ink screen of the terminal has 320px per inch, that is, the mobile phone is 320dpi, and the terminal reports the touch position of the user's finger at a frequency of 100 times per second. The terminal first obtains the touch position of the user's finger at (20, 5) , The second time to get the touch position of the user's finger is (30, 10), then:

The first threshold value is v _th = dpi ÷ 160 × 10 × 60 ÷ 100 = 320 ÷ 160 × 10 × 60 ÷ 100 = 12dp / s.

The terminal determines that the current user's finger sliding speed is:

The above method only needs to blink once in the whole process to eliminate the afterimage on the ink screen, so the flicker of the ink screen can be greatly reduced while ensuring the sharpness of the image.

2. If the sliding speed is less than the first threshold, the terminal refreshes the image on the ink screen with a refresh frequency lower than a preset refresh frequency.

In specific implementation, if it is time to refresh the image to the ink screen when the application of the terminal is delivering a new image to the ink screen, the terminal refreshes the new image to the ink screen; or

If the time required to refresh the image to the ink screen arrives, the terminal's application does not send a new image to the ink screen, then the terminal refreshes the last delivered image to the ink screen.

In the above method, when it is determined that the sliding speed is less than the first threshold, the terminal refreshes the image on the ink screen with a refresh frequency lower than a preset refresh frequency. If the terminal determines that the current sliding speed is a slow sliding speed, it is determined that the user is concerned about the change process of the image on the ink screen of the current terminal. In specific implementation, the terminal displays the first frame image when the user detects a sliding operation on the ink screen of the terminal, and then refreshes the image to the ink screen according to the determined refresh frequency; when the time to refresh the image to the ink screen arrives, the terminal Application does not deliver a new image to the ink screen, the terminal refreshes the last image delivered to the ink screen.

In the above method, since the terminal refreshes the image to the ink screen with a refresh frequency lower than the preset refresh frequency, in such a fixed period of time, the number of refreshes of the image is reduced, so the number of flashes corresponding to each refresh is also reduced. Under the premise of ensuring the sharpness of the image, the flicker of the ink screen can be reduced, thereby improving the user experience.

In specific implementation, the terminal needs to determine the refresh frequency on the ink screen that is used to refresh the image.

Specifically, when the sliding speed is less than a first threshold, the terminal determines a refresh frequency to be adopted in the following manner:

The terminal subtracts the sliding step value from the preset refresh frequency to obtain the adopted refresh frequency.

In the above method, when it is determined that the sliding speed is less than the first threshold, the terminal first determines the sliding step value according to the binding relationship between the sliding speed and the step size value and the determined sliding speed, and sets a preset refresh frequency. Subtract the sliding step value to obtain the adopted refresh frequency, and then refresh the image to the ink screen according to the obtained refresh frequency. In this way, since the calculated refresh frequency is less than the preset refresh frequency, the number of times the ink screen is refreshed in a fixed period of time can be reduced, thereby reducing the number of times the ink screen flickers in the clear mode, and improving the user experience.

E.g:

The ink screen of the terminal has an area of 320px per inch, that is, the mobile phone is 320dpi, and the terminal reports the touch position of the user's finger at a frequency of 100 times per second. The first time the terminal obtains the touch position of the user's finger is (21, 5). The second time the touch position of the user's finger is (30, 21), then:

The first threshold value is v _th = dpi ÷ 160 × 10 = 320 ÷ 160 × 10 = 20dp.

The terminal determines that the current user's finger sliding speed is:

Obviously, the sliding speed is less than the first threshold, so the refresh frequency is:

2-0.5 × (20-15) = 1.5 frames per second.

After determining the refresh frequency, the terminal refreshes the image to the ink screen according to the determined refresh frequency.

In specific implementation, after the terminal detects the user's sliding operation, the first frame image is refreshed on the ink screen and displayed continuously;

When the time for refreshing the image to the ink screen arrives, the terminal's application is transmitting a new image to the ink screen, flickering to eliminate all image information on the ink screen, saving the image being transmitted, and refreshing the image being transmitted at the current moment Go to the ink screen and continue to display;

When the time to refresh the image to the ink screen arrives again, the terminal's application is transmitting a new image to the ink screen, flickers to eliminate all image information on the ink screen, saves the image being transmitted, discards the previous frame image, and changes the current image. The image being transmitted is refreshed on the ink screen and displayed continuously;

This reciprocation, when a certain time to refresh the image to the ink screen arrives, the terminal application does not send a new image to the ink screen, flickers to eliminate all image information on the ink screen, and refreshes the last frame of the previously saved image to Ink screen

In the above process, the terminal can save all the images, and when there are no images being transmitted, refresh the last frame of the saved image to the ink screen.

In the specific implementation process, the sliding speed of the user's finger changes at all times. During the entire sliding process, the terminal continuously determines the sliding speed according to the newly acquired position information and the last acquired position information, and adopts the corresponding refresh. Way to refresh.

An example will be given below. Throughout the process, the terminal continuously saves the image data sent to the ink screen for refreshing use.

For example: if the sliding speed is determined to be rapid sliding between the first report point and the second report point, the terminal keeps displaying the first frame image unchanged after the first frame image is refreshed;

It is determined that the sliding speed is a rapid sliding speed between the second report point and the n-th report point, and the terminal maintains that the first frame image is not changed;

The sliding speed is determined to be slow sliding speed between the n-th report point and the n + 1-th report point. The terminal refreshes the most recently saved frame image, and then refreshes the image according to a determined refresh frequency that is smaller than a preset refresh frequency. To the ink screen;

It is determined that the sliding speed is slow sliding between the n + 1th report point and the 2n + 1th report point. The terminal determines that the time to refresh the image to the ink screen has not arrived and maintains displaying the image at the previous time;

It is determined that the sliding speed is slow sliding between the 2n + 1th report point and the 2n + 2th report point. The terminal determines that the time when the image needs to be refreshed to the ink screen arrives, and refreshes a frame of image being transmitted to the ink screen;

It is determined that the sliding speed is slow sliding between the 2n + 1th report point and the 3n + 2th report point; the terminal determines that the time to refresh the image to the ink screen has not arrived and maintains displaying the image at the previous time;

If it is determined that the sliding speed is fast sliding between the 3n + 2th report point and the 3n + 3th report point, the terminal refreshes the recently saved frame image and maintains the display of the first frame image unchanged;

It is determined that the sliding speed is fast sliding between the 3m report point and the 3m + 5 report point, and the 3m + 6 report point does not obtain a touch point on the ink screen, and the ink screen displays the currently conveyed image.

In the embodiment of the present disclosure, the terminal first determines the sliding speed according to the user's sliding operation on the ink screen; then determines the refresh mode corresponding to the speed range to which the sliding speed belongs according to the correspondence between the speed range and the refresh mode; The determined refresh method refreshes the image of the ink screen. Compared to refreshing to the ink screen according to the refresh rate determined by the ink screen refresh capability, in the embodiment of the present disclosure, the sliding speed is determined according to the sliding operation of the user's finger on the ink screen, and then different refresh methods are determined according to the determined sliding speed. , So it can be more flexible to refresh the image on the ink screen.

As shown in FIG. 3, an embodiment of the present disclosure provides a detailed flowchart of a method for refreshing an image on an ink screen of a dual-screen terminal.

Step 300: After detecting that the user gives a sliding operation instruction, the terminal refreshes the first frame output image to the ink screen;

Step 301: The terminal calculates the current frame rate according to the output data of the image.

Step 302: The terminal determines a sliding speed according to a sliding distance of the user on the ink screen in a unit time.

Step 303: The terminal determines whether the current frame rate is greater than the set frame rate. If so, step 304 is performed, otherwise step 307 is performed;

Step 304: The terminal determines whether the determined sliding speed is greater than a set first threshold. If so, step 305 is performed, otherwise step 306 is performed;

Step 305: The terminal refreshes a frame of the user's image at the end of the sliding operation of the ink screen onto the ink screen;

Step 306: The terminal refreshes the image on the ink screen during a sliding operation with a refresh frequency lower than a preset refresh frequency;

Step 307: The terminal refreshes the image onto the ink screen using a refresh frequency that is lower than a preset refresh frequency.

Based on the same inventive concept, an embodiment of the present disclosure also provides a dual-screen mobile device. Since the device is a terminal in the method in the embodiment of the present disclosure, and the principle of the device to solve the problem is similar to the method, the For the implementation of the device, refer to the implementation of the method.

As shown in FIG. 4, an embodiment of the present disclosure provides a dual-screen mobile device, including: a main body, a color display screen located on a first surface of the main body, and a first display surface of the main body opposite to the first surface. Ink screen on two surfaces, as well as memory 401 and processor 400, of which

The memory 401 is configured to store computer instructions and data associated with the ink screen and the color display screen;

The processor 400 is configured to execute the computer instructions to enable the dual-screen mobile device to implement:

Determine the sliding speed according to the user's sliding operation on the ink screen; determine the refresh method corresponding to the speed range to which the sliding speed belongs according to the correspondence between the speed range and the refresh method; refresh the image delivered by the application to ink according to the determined refresh method On screen.

Optionally, the processor 400 is specifically configured to:

In response to the sliding speed being less than the first threshold, the refresh method is to refresh the image onto the ink screen with a refresh frequency lower than a preset refresh frequency; or

In response to the sliding speed being not less than the first threshold, the refresh method is to refresh a frame of the image on the ink screen by the user at the end of the slide operation of the ink screen.

Optionally, the sliding speed is less than a first threshold, and the processor 400 is specifically configured to determine a refresh frequency to be adopted in the following manner:

The sliding step value is determined according to the sliding speed; the preset refresh frequency is subtracted from the sliding step value to obtain the adopted refresh frequency.

Optionally, the processor 400 is specifically configured to:

In response to the time when the time required to refresh the image to the ink screen arrives, the terminal application is transmitting a new image to the ink screen, and then the new image is refreshed to the ink screen.

Optionally, the processor 400 is specifically configured to:

In response to the time when the time when the image needs to be refreshed to the ink screen arrives, the terminal application does not send a new image to the ink screen, then the last delivered image is refreshed to the ink screen.

Optionally, the first threshold is set according to the number of pixels in each inch of the ink screen.

Based on the same concept, an embodiment of the present disclosure provides a dual-screen mobile device, that is, the dual-screen mobile terminal shown in FIG. 5. As shown in FIG. 5, the dual-screen mobile terminal 500 includes: a power source 510, a processor 520, The memory 530, the input unit 540, the display unit 550, and the communication interface 560 and other components. Those skilled in the art can understand that the structure of the dual-screen mobile terminal shown in FIG. 5 does not constitute a limitation on the terminal. The terminal provided in the embodiment of the present application may include more or fewer components than shown in the figure, or a combination of some These components, or different component arrangements.

Each component of the dual-screen mobile terminal 500 is specifically described below with reference to FIG. 5:

The memory 530 may be used to store software programs and modules. The processor 520 executes various functional applications and data processing of the terminal 500 by running software programs and modules stored in the memory 530, and can be implemented after the processor 520 executes the program code in the memory 530 Part or all of the processes in the embodiment of the present disclosure in FIG. 2.

Optionally, the memory 530 may mainly include a program storage area and a data storage area. The storage program area can store an operating system, various application programs (such as communication applications), and a face recognition module. The storage data area can store data (such as various pictures, video files, etc.) created according to the use of the terminal. Multimedia files, and face information templates).

In addition, the memory 530 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

The input unit 540 may be configured to receive digital or character information input by a user, and generate key signal inputs related to user settings and function control of the dual-screen mobile terminal 500.

Optionally, the input unit 540 may include a touch panel 541 and other input devices 542.

The touch panel 541, also referred to as a touch screen, can collect touch operations performed by the user on or near the touch panel (for example, the user uses a finger, a stylus, or any suitable object or accessory on the touch panel 541 or Operation near the touch panel 541), and drive the corresponding connection device according to a preset program. Optionally, the touch panel 541 may include a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, and detects the signal caused by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into contact coordinates, and sends it To the processor 520, and can receive and execute the command sent by the processor 520. In addition, the touch panel 541 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave.

Optionally, the other input devices 542 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.) and the like.

The display unit 550 may be configured to display information input by the user or information provided to the user and various menus of the terminal 500. The display unit 550 is a display system of the terminal 500, and is used to present an interface and implement human-computer interaction.

The display unit 550 may include a display panel 551. Optionally, the display panel 551 may be configured by using a liquid crystal display (Liquid Crystal Display, LCD), an organic light emitting diode (Organic Light-Emitting Diode, OLED), or the like.

Further, the touch panel 541 may cover the display panel 551, and when the touch panel 541 detects a touch operation on or near the touch panel 541, the touch panel 541 transmits the touch operation to the processor 520 to determine the type of the touch event. The processor 520 then provides a corresponding visual output on the display panel 551 according to the type of touch event.

Although in FIG. 5, the touch panel 541 and the display panel 551 are implemented as two independent components to implement the input and input functions of the terminal 500, in some embodiments, the touch panel The control panel 541 is integrated with the display panel 551 to implement input and output functions of the terminal 500.

The processor 520 is a control center of the dual-screen mobile terminal 500, and uses various interfaces and lines to connect various components, runs or executes software programs and / or modules stored in the memory 530, and calls stored in The data in the memory 530 executes various functions of the terminal 500 and processes data, thereby implementing various services based on the terminal.

Optionally, the processor 520 may include one or more processing units. Optionally, the processor 520 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communications. It may be understood that the foregoing modem processor may not be integrated into the processor 520.

The terminal 500 further includes a power source 510 (such as a battery) for supplying power to various components. Optionally, the power supply 510 may be logically connected to the processor 520 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption through the power management system.

Although not shown, the terminal 500 may further include at least one sensor, an audio circuit, and the like, and details are not described herein again.

The memory 530 may store the same program code as the memory 401, and when the program code is executed by the processor 520, the processor 520 implements all functions of the processor 400.

As shown in FIG. 6, a dual-screen mobile device provided by an embodiment of the present disclosure includes:

The first determining module 600 determines a sliding speed according to a user's sliding operation on the ink screen;

A second determining module 601, according to the correspondence between the speed range and the refresh mode, determining a refresh mode corresponding to the speed range to which the sliding speed belongs;

The refresh module 602 refreshes the image delivered by the application to the ink screen according to the determined refresh mode.

Optionally, in response to the sliding speed being less than the first threshold, the refresh method is to refresh the image onto the ink screen with a refresh frequency lower than a preset refresh frequency; or

In response to the sliding speed being not less than the first threshold, the refresh method is to refresh a frame of the image on the ink screen by the user at the end of the slide operation of the ink screen. .

Optionally, the sliding speed is less than a first threshold, and the second determining module 601 is specifically configured to:

The refresh rate used is determined by:

Determining the sliding step value according to the sliding speed;

Subtracting the sliding step value from the preset refresh frequency to obtain the adopted refresh frequency.

Optionally, the refresh module 602 is specifically configured to:

In response to the time when the time required to refresh the image to the ink screen arrives, the terminal application does not send a new image to the ink screen, and then refreshes the last delivered image to the ink screen.

The above describes the present application with reference to block diagrams and / or flowcharts showing methods, devices (systems) and / or computer program products according to embodiments of the present application. It should be understood that one block of the block diagrams and / or flowchart illustrations, and a combination of blocks of the block diagrams and / or flowchart illustrations can be implemented by computer program instructions. These computer program instructions may be provided to a general purpose computer, a processor of a special purpose computer, and / or other programmable data processing device to produce a machine such that the instructions executed via the computer processor and / or other programmable data processing device create A method for implementing the functions / actions specified in the block diagrams and / or flowchart blocks.

Accordingly, the application can also be implemented in hardware and / or software (including firmware, resident software, microcode, etc.). Still further, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code implemented in the medium for use by an instruction execution system or Used in conjunction with the instruction execution system. In the context of this application, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, transmit, or transfer a program for use by or in connection with an instruction execution system, apparatus, or device, Device or equipment.

Obviously, those skilled in the art can make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. In this way, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalent technologies, the present disclosure also intends to include these modifications and variations.

Claims

A method for refreshing an image on an ink screen of a dual-screen terminal, the method includes:

The terminal determines the sliding speed according to a user's sliding operation on the ink screen, wherein the terminal includes a main body, a color display screen located on a first surface of the main body, and a second screen located on the main body opposite to the first surface. Surface ink screen;

Determining, according to the correspondence between the speed range and the refresh mode, the refresh mode corresponding to the speed range to which the sliding speed belongs;

The terminal refreshes the image delivered by the application to the ink screen according to the determined refresh mode.
The method according to claim 1, wherein the determining, by the terminal according to the correspondence between the speed range and the refresh mode, the refresh mode corresponding to the speed range to which the sliding speed belongs, comprises:

In response to the sliding speed being less than the first threshold, the refresh method is to refresh the image onto the ink screen with a refresh frequency lower than a preset refresh frequency; or

In response to the sliding speed being not less than the first threshold, the refresh method is to refresh a frame of the image on the ink screen by the user at the end of the slide operation of the ink screen.
The method according to claim 2, wherein the sliding speed is less than a first threshold, and the terminal determines a refresh frequency to be adopted by:

Determining, by the terminal, a step size of the sliding according to the sliding speed;

The terminal subtracts the sliding step value from the preset refresh frequency to obtain the adopted refresh frequency.
The method according to claim 2, wherein the terminal refreshes the image on the ink screen with a refresh frequency lower than a preset refresh frequency, comprising:

In response to the time when the time required to refresh the image to the ink screen arrives, the terminal's application is transmitting a new image to the ink screen, then the terminal refreshes the new image to the ink screen, and the new image is the terminal's current The image being delivered at the moment.
The method according to claim 2, wherein the terminal refreshes the image on the ink screen with a refresh frequency lower than a preset refresh frequency, comprising:

In response to the time when the time required to refresh the image to the ink screen arrives, the terminal application does not send a new image to the ink screen, then the terminal refreshes the last image delivered to the ink screen, and the last image transmitted is the terminal at The last image saved before the current moment.
The method according to claim 1, wherein the first threshold is set according to the number of pixels in each inch of the ink screen.
A dual-screen mobile device includes a main body, a color display screen on a first surface of the main body, and an ink screen on a second surface of the main body opposite to the first surface, and a memory and a processor, wherein ,

The memory is configured to store computer instructions and data associated with the ink screen and the color display screen;

The processor is configured to execute the computer instructions to enable the dual-screen mobile device to implement:

Determine the sliding speed according to the user's sliding operation on the ink screen; determine the refresh method corresponding to the speed range to which the sliding speed belongs according to the correspondence between the speed range and the refresh method; refresh the image delivered by the application to ink according to the determined refresh method On screen.
The dual-screen mobile device according to claim 7, wherein the processor is specifically configured to:

In response to the sliding speed being less than the first threshold, the refresh method is to refresh the image onto the ink screen with a refresh frequency lower than a preset refresh frequency; or

In response to the sliding speed being not less than the first threshold, the refresh method is to refresh a frame of the image on the ink screen by the user at the end of the slide operation of the ink screen.
The dual-screen mobile device according to claim 8, wherein the sliding speed is less than a first threshold, and the processor is specifically configured to determine a refresh frequency to be adopted by:

The sliding step value is determined according to the sliding speed; the preset refresh frequency is subtracted from the sliding step value to obtain the adopted refresh frequency.
The dual-screen mobile device according to claim 8, wherein the processor is specifically configured to:

In response to the time when the time required to refresh the image to the ink screen arrives, the terminal's application is transmitting a new image to the ink screen, then the new image is refreshed to the ink screen, and the new image is the current time that the terminal is transmitting Image.
The dual-screen mobile device according to claim 8, wherein the processor is specifically configured to:

In response to the time when the time required to refresh the image to the ink screen arrives, the terminal application does not send a new image to the ink screen, then the last image transmitted is refreshed to the ink screen, the last image transmitted is that the terminal is before the current time The last image saved.
The dual-screen mobile device according to claim 7, wherein the first threshold is set according to the number of pixels in each inch of the ink screen.