CN117153118A

CN117153118A - Picture updating method, device and equipment of ink screen and storage medium

Info

Publication number: CN117153118A
Application number: CN202311208978.2A
Authority: CN
Inventors: 许俊文; 朱增
Original assignee: ONYX INTERNATIONAL Inc
Current assignee: ONYX INTERNATIONAL Inc
Priority date: 2023-09-18
Filing date: 2023-09-18
Publication date: 2023-12-01
Anticipated expiration: 2043-09-18
Also published as: CN117153118B

Abstract

The embodiment of the application discloses a picture updating method, a device, equipment and a storage medium of an ink screen, wherein when a picture to be displayed is received under the condition that a ghost elimination function is started, the picture to be displayed is subjected to pixel comparison with a current picture to be displayed, and a pixel change area is determined; performing content feature recognition on the current display content and the content to be displayed of the pixel change region, and determining a region meeting the preset feature requirement from the pixel change region as a target change region; confirming peripheral areas which are separated from edge pixels of the target change area by a preset pixel number; and refreshing the picture of the pixel change area, and performing residual image removal processing on the peripheral area. The display effect of effectively guaranteeing the ghost removal is achieved, the operation efficiency is high, the display effect of picture updating is good, and the use experience of a user is optimized.

Description

Picture updating method, device and equipment of ink screen and storage medium

Technical Field

The embodiment of the application relates to the technical field of display, in particular to a picture updating method, device and equipment of an ink screen and a storage medium.

Background

The ink screen is also commonly called electronic paper, and is densely provided with a large number of microcapsules, wherein charged color particles are sealed in the microcapsules, and the particles can be driven to move by applying voltage between substrates; the microcapsules forming the ink screen are pixel points, and the ink screen displays patterns after combination. The structure of the ink screen avoids active luminescence, but presents content by reflecting ambient light, has the look and feel similar to a paper book, and has the advantage of eye protection. However, when the color particles in the microcapsules are pressurized, a certain movement time is needed, so that the picture updating speed of the ink screen is slower, and the use experience of a user is reduced. In order to meet the use requirement of a user, the ink screen is preset with a plurality of different refresh modes, such as a faster refresh mode of A2, DU and the like, a slower GC16 refresh mode and the like; the slower refresh mode has better display effect, and the faster refresh mode can promote the updating speed of the picture, but can easily generate the ghost. The image sticking of the ink screen is caused by the fact that when the display content changes, the old image cannot be completely cleared, so that the image sticking or trace of the old image can be seen in the new image. Currently, a global refreshing method is generally adopted to remove the ghost, that is, pure black and pure white pictures are used to reset color particles, and then the picture content to be displayed is loaded.

However, the application of global refreshing techniques tends to cause significant flicker in the screen, causing discomfort to the user; meanwhile, the refreshing speed is low, the refreshing method cannot be used in real time, and each global refreshing time needs to be longer.

Disclosure of Invention

Based on the above, the embodiment of the application provides a picture updating method, a device, equipment and a storage medium of an ink screen, which solve the problems that the application of global refreshing can cause the time for removing the ghost and the operation efficiency is low, reduce the picture content required to be processed by the ghost removal in a mode of determining a target change area from a pixel change area, improve the ghost removal speed, and simultaneously carry out the ghost removal on the peripheral area corresponding to the target change area meeting the content characteristics, thereby effectively ensuring the display effect of the ghost removal, having high operation efficiency and good display effect of picture updating, and optimizing the use experience of users.

In a first aspect, an embodiment of the present application provides a method for updating a screen of an ink screen, including:

when a picture to be displayed is received under the condition that a ghost eliminating function is started, comparing the picture to be displayed with a current display picture to determine a pixel change area;

Performing content feature recognition on the current display content and the content to be displayed of the pixel change region, and determining a region meeting the preset feature requirement from the pixel change region as a target change region;

confirming peripheral areas which are separated from the edge pixels of the target change area by a preset pixel number;

and refreshing the picture of the pixel change area and carrying out residual image removal processing on the peripheral area.

Wherein the content features include text features and graphic features;

accordingly, determining the region meeting the preset characteristic requirement from the pixel change region as a target change region comprises:

under the condition that a first subarea of which the content to be displayed meets text characteristics exists in the pixel change area, if the current display content of the first subarea meets the text characteristics or meets graphic characteristics of preset texture complexity, determining the first subarea as a target change area;

and under the condition that a second subarea of the graphic features of which the contents to be displayed meet the preset texture complexity exists in the pixel change area, if the current display contents of the second subarea meet the text features or the graphic features of which the preset texture complexity meet the current display contents of the second subarea, determining the second subarea as a target change area.

Wherein after the pixel change area is determined, and before the content feature recognition is performed on the current display content and the content to be displayed of the pixel change area, the method further comprises:

when the pixel change area is positioned in the currently displayed application window and the application window has recorded the dividing information of the local area, determining a candidate clearing area from a plurality of local areas divided from the currently displayed application window according to the window structure type of the local area, wherein the local area is divided according to the window structure of the application window;

extracting a candidate change region falling in the candidate clear region from the pixel change regions;

correspondingly, the content feature recognition is performed on the current display content and the content to be displayed in the pixel change area, and an area meeting the preset feature requirement is determined as a target change area from the pixel change area, which comprises the following steps:

and carrying out content characteristic recognition on the current display content and the content to be displayed of the candidate change region, and determining the region meeting the preset characteristic requirement from the candidate change region as a target change region.

The updating characteristics corresponding to the window structure type comprise dynamic refreshing and static display;

Correspondingly, the determining the candidate clearing area according to the window structure type of the local area comprises the following steps:

and screening a target local area with the updating characteristic of dynamic refreshing from the local area as a candidate clearing area according to the updating characteristic corresponding to the window structure type of the local area.

The step of screening the target local area with the update characteristic of dynamic refreshing from the local areas as a candidate clearing area comprises the following steps:

screening a target local area with the updating characteristic of dynamic refreshing from the local area, and determining the content updating frequency of the target local area;

and determining the target local area with the content update frequency lower than the preset update frequency as a candidate clearing area.

The whole display area of the ink screen is divided into at least two display subareas, and each display subarea carries out picture refreshing through a corresponding refreshing type;

when receiving a picture to be displayed, the picture to be displayed is subjected to pixel comparison with a current display picture to determine a pixel change area under the condition that the ghost eliminating function is started, and the method comprises the following steps:

when a picture to be displayed is received under the condition that a ghost eliminating function is started, confirming whether a first display subarea in picture refreshing exists in the whole display area of the ink screen or not;

And under the condition that the first display subarea in the picture refreshing process exists, comparing the picture to be displayed corresponding to the second display subarea which completes the picture refreshing in the whole display area with the corresponding current display picture to determine the pixel change area of the second display subarea, and after the picture refreshing process of the first display subarea is completed, comparing the picture to be displayed corresponding to the first display subarea with the corresponding current display picture to determine the pixel change area of the first display subarea.

Wherein after the confirming whether the first display subarea in the picture refreshing exists in the whole display area of the ink screen, the method further comprises the following steps:

and under the condition that the integral display areas are all updated, comparing the picture to be displayed with the current display picture to determine a pixel change area.

Wherein, the performing the ghost elimination processing on the peripheral area includes:

before the picture refreshing is started, recording the current color value of each pixel point in the peripheral area as a target color value;

after the frame refreshing is completed, resetting the color of each pixel point, and recovering the pixel color value of each pixel point to a corresponding target color value.

and applying a holding voltage to each pixel point in the peripheral area until the pixel change area finishes the picture refreshing.

In a second aspect, an embodiment of the present application further provides a device for updating a screen of an ink screen, including:

the change area determining unit is used for comparing the picture to be displayed with the current display picture to determine a pixel change area when the picture to be displayed is received under the condition that the ghost eliminating function is started;

the target area determining unit is used for carrying out content feature recognition on the current display content and the content to be displayed of the pixel change area, and determining an area meeting the preset feature requirement from the pixel change area as a target change area;

a peripheral region determining unit configured to determine a peripheral region separated from edge pixels of the target variation region by a preset number of pixels;

and the picture updating unit is used for refreshing the picture of the pixel change area and carrying out residual image removal processing on the peripheral area.

Wherein the content features include text features and graphic features;

A target area determination unit including:

the first target area determining module is used for determining the first subarea as a target change area if the current display content of the first subarea meets the text characteristics or the graphic characteristics of the preset texture complexity under the condition that the first subarea of which the content to be displayed meets the text characteristics exists in the pixel change area;

and the second target area determining module is used for determining the second subarea as a target change area if the current display content of the second subarea meets the text characteristics or the graphic characteristics of the preset texture complexity under the condition that the second subarea of which the content to be displayed meets the graphic characteristics of the preset texture complexity exists in the pixel change area.

Wherein the target area determining unit includes:

the first clearing area determining module is used for determining candidate clearing areas according to the window structure types of the local areas in a plurality of local areas divided from the currently displayed application window when the pixel change area is located in the currently displayed application window and the application window has recorded division information of the local areas, wherein the local areas are divided according to the window structures of the application window;

A candidate change region determining module, configured to extract a candidate change region falling in the candidate clear region from the pixel change regions;

and the target change area determining module is used for carrying out content characteristic recognition on the current display content and the content to be displayed of the candidate change area, and determining an area meeting the preset characteristic requirement from the candidate change area as a target change area.

a target area determination unit including:

and the second clearing area determining module is used for screening the target local area with the updating characteristic being dynamic refreshing from the local area as a candidate clearing area according to the updating characteristic corresponding to the window structure type of the local area.

Wherein the target area determining unit includes:

the local area determining module is used for screening out a target local area with the updating characteristic of dynamic refreshing from the local area and determining the content updating frequency of the target local area;

and the third clearing area determining module is used for determining the target local area with the content updating frequency lower than the preset updating frequency as a candidate clearing area.

the change region determining unit includes,

the first sub-region determining module is used for determining whether a first display sub-region in picture refreshing exists in the whole display region of the ink screen or not when a picture to be displayed is received under the condition that the ghost eliminating function is started;

the first change area determining module is used for comparing the picture to be displayed corresponding to the second display subarea which is finished in picture refreshing with the corresponding current display picture in the integral display area under the condition that the first display subarea which is in picture refreshing exists, determining the pixel change area of the second display subarea, and comparing the picture to be displayed corresponding to the first display subarea with the corresponding current display picture after the first display subarea finishes picture refreshing, and determining the pixel change area of the first display subarea.

Wherein the change region determination unit includes:

and the second change area determining module is used for comparing the picture to be displayed with the current display picture to determine a pixel change area under the condition that the whole display area is completely refreshed.

Wherein, the picture updating unit includes:

the color recording module is used for recording the current color value of each pixel point in the peripheral area as a target color value before the picture refreshing is started;

and the color recovery module is used for recovering the pixel color value of each pixel point to a corresponding target color value after the color of each pixel point is reset after the image refreshing is completed.

Wherein, the picture updating unit includes:

and the color maintaining module is used for applying a maintaining voltage to each pixel point in the peripheral area until the pixel change area finishes the picture refreshing.

In a third aspect, an embodiment of the present application further provides an electronic device, including:

one or more processors;

a memory for storing one or more programs;

when the one or more programs are executed by the one or more processors, the electronic device is caused to implement the picture update method according to any one of the first aspects of the present application.

In a fourth aspect, an embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored, where the program or the instruction is executed by a processor to perform the picture updating method according to any one of the first aspect of the present application.

The embodiment of the application provides a picture updating method, a device, equipment and a storage medium, wherein when a picture to be displayed is received under the condition that a ghost elimination function is started, the picture to be displayed is subjected to pixel comparison with a current display picture, and a pixel change area is determined; performing content feature recognition on the current display content and the content to be displayed of the pixel change region, and determining a region meeting the preset feature requirement from the pixel change region as a target change region; confirming peripheral areas which are separated from edge pixels of the target change area by a preset pixel number; and refreshing the picture of the pixel change area, and performing residual image removal processing on the peripheral area. The method has the advantages that the mode of determining the target change area from the pixel change area is realized, the picture content required to be processed for removing the ghost is reduced, the ghost removal speed is improved, meanwhile, the ghost removal is carried out on the peripheral area corresponding to the target change area meeting the content characteristics, the display effect of ghost removal is effectively ensured, the operation efficiency is high, the display effect of picture update is good, and the use experience of a user is optimized.

Drawings

FIG. 1 is a flowchart of a method for updating a screen of an ink screen according to an embodiment of the present application;

FIG. 2 is a flowchart of a method for determining a pixel change area according to an embodiment of the present application;

FIG. 3 is a schematic diagram of region division of a target change region of an application window according to an embodiment of the present application;

FIG. 4 is a flowchart of a method for determining a target change area according to an embodiment of the present application;

FIG. 5 is a flowchart of a method for determining a target change area by incorporating a window structure type determination according to an embodiment of the present application;

FIG. 6 is a schematic diagram of determining a peripheral area of an edge pixel according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a device for updating a screen of an ink screen according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the drawings and examples. It should be understood that the particular embodiments described herein are illustrative only and are not limiting of embodiments of the application. It should be further noted that, for convenience of description, only some, but not all of the structures related to the embodiments of the present application are shown in the drawings.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, where appropriate, such that embodiments of the application may be practiced in sequences other than those illustrated and described herein, and that the objects identified by "first," "second," etc. are generally of a type not limited to the number of objects, such as the first object may be one or more, or may not be construed as indicating or implying a relative importance. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship. Furthermore, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "in series" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The method for updating the picture provided by the embodiment of the application can be used for a display device carrying an electronic ink screen, wherein the display device can be electronic devices such as a display screen, a tablet personal computer, a mobile phone, an electronic reader, a personal digital assistant (Personal Digital Assistant, PDA for short) and the like based on the electronic ink screen, and particularly the display device can comprise the electronic ink screen, an image processing module, a microcontroller, a screen driving module, a time sequence control circuit and a power supply control circuit. For example, the microcontroller may include an image processing module, a picture detection module, and the like, where the image processing module may perform a preset image processing operation on the obtained raw image data, for example, one or more of antialiasing, dithering, gray conversion, and contrast enhancement, and obtain image data of a picture to be displayed therefrom, where each pixel in the picture to be displayed has a corresponding color value, where the color value includes a gray scale value. And then the picture detection module analyzes the original image data to obtain a picture analysis result, and the microcontroller obtains a refresh strategy corresponding to the original image data according to the picture analysis result, wherein the picture analysis result at least comprises picture update frequency which is equivalent to a frame rate, and the microcontroller matches a refresh mode corresponding to the current frame rate according to a mapping relation between the frame rate and the refresh mode. For example, when the frame rate is in a preset numerical range, a specific refresh mode, such as A2 refresh mode, DU refresh mode, etc. with a faster refresh rate, GC16 refresh mode, etc. with a slower refresh rate, is matched.

In addition, the screen driving module is connected with the microcontroller, and the screen driving module receives image data of a picture to be displayed and a refresh mode matched with the picture to be displayed, converts the picture to be displayed into driving waveform data according to the received refresh mode, and the time sequence control circuit and the power supply control circuit are used for driving the electronic ink screen to display the picture according to the driving waveform data. Specifically, the screen driving module is connected with the time sequence control circuit, the time sequence control circuit is connected with the electronic ink screen, the power supply control circuit is connected with the time sequence control circuit and the electronic ink screen, the time sequence control circuit is used for providing control signals for controlling the generation and the withdrawal of driving voltage for the power supply control circuit, and the time sequence control circuit is also used for providing driving signals for driving the electronic ink screen for the electronic ink screen according to the refreshing mode of the electronic ink screen so as to enable the electronic ink screen to display a picture to be displayed.

Fig. 1 is a flowchart of a method for updating a screen of an ink screen according to an embodiment of the present application, where the method for updating a screen of an ink screen according to an embodiment of the present application may be executed by a screen updating device of an ink screen, and the screen updating device of an ink screen may be implemented by hardware and/or software and integrated in a display device on which an electronic ink screen is mounted.

The following description will be made taking, as an example, a method in which the screen updating device of the ink screen performs screen updating of the ink screen.

Referring to fig. 1, the method for updating the picture of the ink screen includes:

step S101, when a picture to be displayed is received under the condition that the ghost eliminating function is started, comparing the picture to be displayed with the current picture to determine a pixel change area.

It should be noted that, the display device may provide different ways for opening the ghost image removing function for the user, for example, after the display interface may provide the ghost image removing control, the processor may open the ghost image removing function after receiving a triggering operation of the user on the ghost image removing control, where the triggering operation includes, but is not limited to, a touch screen click, a physical button trigger, a specific gesture trigger, etc., and optionally, after the ghost image removing function is opened, a screen of the ink screen may display status information prompting that the ghost image removing function is opened; for another example, after the processor detects that the new application is started, specifically, when the current application is detected to be matched with the preset application list, a function enabling window for providing the ghost clearing control can be popped up, so that before the user uses the new application, the user can be prompted to use the new application as a scene easy to occur ghost, and the user can start the ghost clearing function in the function enabling window, wherein the preset application list can include common applications easy to occur ghost, such as a web browser, a reading application and the like.

Moreover, since the electronic ink screen is composed of a plurality of closely arranged ink capsules, there is a problem of electric field crosstalk between adjacent ink capsules, that is, the electric field formed by two electrodes corresponding to one ink capsule cannot completely restrict the color particles in the one ink capsule, and when the color particles in one ink capsule move under the action of the electric field, the adjacent ink capsules also have weak electric fields, and the color particles can move unexpectedly. Therefore, when the electronic ink screen displays images, the range of actual influence in the electronic ink screen is larger than the expected range corresponding to the images to be displayed according to the display control electric field generated by the components of the images to be displayed; when the original image component is eliminated due to the need of refreshing the screen, the outline of the eliminated image component is left in the screen, and unexpected afterimage appears. Therefore, the processor obtains the pixel change area by comparing the picture to be displayed with the current display picture, and carries out the ghost elimination processing on the pixel change area in the subsequent step.

Further, fig. 2 is a flowchart of a method for determining a pixel change area according to an embodiment of the present application, as shown in fig. 2, an overall display area of the ink screen is divided into at least two display sub-areas, and each display sub-area performs image refreshing according to a corresponding refresh type;

Correspondingly, the specific process of determining the pixel change area comprises the following steps:

step S1011, when a picture to be displayed is received under the condition that the ghost eliminating function is started, confirming whether a first display subarea in picture refreshing exists in the whole display area of the ink screen or not;

step S1012, when it is confirmed that there is a first display sub-region in the frame refreshing, comparing the to-be-displayed frame corresponding to the second display sub-region in the overall display region after finishing the frame refreshing with the corresponding current display frame to determine the pixel change region of the second display sub-region, and after finishing the frame refreshing of the first display sub-region, comparing the to-be-displayed frame corresponding to the first display sub-region with the corresponding current display frame to determine the pixel change region of the first display sub-region.

It should be noted that, the whole display area of the ink screen may have a situation that the image is refreshed by the partition, and different refresh frequencies may have different refresh frequencies, so that when the ghost clearing function is started, there may be an area in which the image is refreshed, so that the pixel change area needs to be separately determined according to the image refresh state of the area, the pixel change area determination may be performed on the second display sub-area in which the image refresh is completed first, and the pixel change area of the first display sub-area may be determined after the image refresh is completed on the first display sub-area in which the image refresh is completed.

Optionally, as shown in fig. 2, the specific process of determining the pixel change area further includes:

step S1013, when it is confirmed that the whole display area is completely refreshed, comparing the picture to be displayed with the current display picture to determine the pixel change area.

Therefore, the method and the device distinguish different areas in the refreshing state from the finished refreshing state by determining the picture refreshing state of the whole display area of the ink screen, so that the confirmation of the pixel change area after the completion of the picture refreshing of the area in the refreshing state is realized, the direct picture comparison of the whole display area with the picture refreshing area is avoided, the accuracy of the judgment of the pixel change area is improved, the accuracy of the subsequent judgment of the peripheral area is improved, the ghost clearing effect can be effectively ensured, and the method and the device are suitable for ink screens supporting various partition refreshing strategies.

And step S102, carrying out content feature recognition on the current display content and the content to be displayed of the pixel change region, and determining the region meeting the preset feature requirement from the pixel change region as a target change region.

It should be noted that, in the step S101, the pixel change area corresponds to the preliminary determination of the ghost clearing area, and the target change area is further located through the content feature recognition, so that the necessity of the ghost clearing process is more considered from the reading look and feel of the user. Fig. 3 is a schematic diagram of region division of a target change region of an application window according to an embodiment of the present application, as shown in fig. 3, for example, for a pixel change region being a content text region, contents with different presentation forms such as text, pictures, or tables may be included. Moreover, for the picture, the texture characteristics of the picture can be considered, some picture textures are simple, such as sky, sea, etc., some picture textures are complex, such as text screenshot, graphic arrangement similar to text distribution, etc., for the picture with simple texture, it can be considered that the ghost clearing process is not performed, because the ghost has little influence on the look and feel of the user, and for the picture with complex texture, the ghost clearing process is required, otherwise, the picture content is blurred, and the reality and definition of the content are affected. Therefore, the processor can further reduce the area range of the image sticking elimination processing by carrying out content characteristic recognition on the current display content and the content to be displayed in the content text area and further taking the area meeting the preset characteristic requirement as the target change area from the pixel change area, wherein the recognition means can be OCR character recognition or color recognition, and the application is not limited herein.

In one embodiment, fig. 4 is a flowchart of a method for determining a target change area according to an embodiment of the present application, where, as shown in fig. 4, a content feature includes a text feature and a graphic feature, and a process for determining a target change area specifically includes:

step S1021, carrying out content characteristic identification on the current display content and the content to be displayed of the pixel change area;

step S1022, if the first sub-area whose content to be displayed meets the text feature exists in the pixel change area, determining the first sub-area as a target change area if the current display content of the first sub-area meets the text feature or meets the graphic feature of the preset texture complexity;

step S1023, if a second subarea whose content to be displayed meets the graphic characteristics of the preset texture complexity exists in the pixel change area, determining the second subarea as a target change area if the current display content of the second subarea meets the text characteristics or meets the graphic characteristics of the preset texture complexity.

Where text features refer to the body content of an area as characters, graphic features refer to the body content of an area as pictures, and for reading applications such as news, magazines, etc., the body content of a pixel change area may include both text and pictures, for sub-areas meeting the text features, the sub-areas are typically lines of text or paragraphs of text, etc., and for sub-areas meeting the graphic features, the sub-areas are typically geometric figures, backgrounds, images, etc. When the content to be displayed corresponding to the first sub-region satisfies the text feature, if the current display content of the first sub-region also satisfies the text feature or satisfies the graphic feature of the preset texture complexity, for example, the text screenshot, etc., corresponding to the case that the area of the blank unchanged region is large, the ghost is easy to generate, so that the ghost processing is needed, but if the current display content of the first sub-region satisfies the graphic feature which does not conform to the preset texture complexity, for example, the landscape image, the object image, etc., and the corresponding changed region area is large, the unchanged region is small, the ghost processing is unnecessary. Similarly, in the case where there is a second sub-region in which the content to be displayed satisfies the graphic feature of the preset texture complexity in the sub-region, if the current display content of the second sub-region satisfies the text feature or the graphic feature of the preset texture complexity, the ghost is easily generated in the case where the corresponding blank unchanged region area is large, so that the ghost processing is also required, but if the current display content of the second sub-region satisfies the graphic feature which does not conform to the preset texture complexity, and the corresponding changed region area is large, the ghost processing is not necessary in the case where the unchanged region is small. As can be seen from the above, the blank area of the text content is larger, and the ghost affects the definition and readability of the text greatly, so if the current display content and the content to be displayed in a certain area also satisfy the text feature or the graphic feature of the preset texture complexity, for example, the text paragraph changes to the text paragraph, the area needs to be determined as the target change area, thereby only the area easy to generate the ghost can be processed, the purpose of simplifying the processing area is achieved, and the computing resource of the processor is saved.

Optionally, fig. 5 is a flowchart of a method for determining a target change area by adding a window structure type determination according to an embodiment of the present application, as shown in fig. 5, a process for determining a target change area by combining a window structure type is added, which specifically includes:

step S201, when a picture to be displayed is received under the condition that a ghost eliminating function is started, comparing the picture to be displayed with a current display picture to determine a pixel change area;

step S2021, in the case that the pixel change area is located in the currently displayed application window and the application window has recorded partition information of a local area, determining a candidate clearing area according to a window structure type of the local area from a plurality of local areas partitioned from the currently displayed application window, where the local area is partitioned according to a window structure of the application window;

step S2022 of extracting a candidate change region falling in the candidate clear region from the pixel change regions;

and step S2023, performing content feature recognition on the current display content and the content to be displayed of the candidate change region, and determining a region meeting the preset feature requirement from the candidate change region as a target change region.

Step S203, confirming a peripheral area which is away from the edge pixels of the target change area by a preset pixel number;

and step S204, refreshing the picture of the pixel change area and performing residual image removal processing on the peripheral area.

It should be noted that, the window structure type corresponds to the type division of different functional areas of the application window, for the application window displayed currently, the window structure type may include a title bar, a menu bar, a toolbar, a content main area and a window control, based on the foregoing different window structure types, the application window may be divided into a plurality of local areas, each local area may correspond to a different update characteristic, the processor may determine, in real time, a candidate clearing area from the local areas divided by the application window displayed currently based on the difference of the update characteristics of the different local areas, or may determine, based on a preset configuration file, a candidate clearing area directly from the local areas divided by the application window, where the present application is not limited. The candidate clearing area refers to a local area in the application window, which needs to be subjected to ghost clearing processing, and is equivalent to initially dividing a potential area in which ghost may occur, and further identifying and dividing the candidate clearing area in a subsequent step, so that the area needing to be subjected to ghost clearing processing is more accurately positioned.

In one embodiment, the update characteristics corresponding to the window structure type include dynamic refresh and static display; correspondingly, the determining the candidate clearing area according to the window structure type of the local area comprises the following steps:

It will be appreciated that for title bars, menu bars, tool bars, window controls, etc., the update characteristics are typically static, and during the screen update, the display content is substantially unchanged, and generally remains consistent after the user opens the target content, such as the target article, target column, or target entry, unless the user again selects the reading content, or adjusts the application window. Because the update frequency of the local area of the static display is low and the content change is small, the influence on the use appearance of the user is small; in general, for the content main area, the update characteristic is dynamic refresh, and in the process of updating the picture, the content has a large change range, such as a large variation of text paragraphs, and the update and replacement of complex graphics, etc., so that the probability of forming a ghost is high due to a large change area. Therefore, the local area with the updating characteristic of dynamic refreshing can be used as a candidate clearing area, other local areas with the updating characteristic of static display can be used for not performing ghost clearing processing, the area needing ghost clearing during picture updating is reduced, the computing resource of a processor for picture updating is saved, the ghost clearing efficiency is optimized while the picture display effect is ensured, and smooth reading impression is provided for a user.

In another embodiment, the selecting the target local area with the update characteristic of dynamic refresh from the local areas as the candidate clearing area includes:

It can be understood that in the application window, the update characteristics are different from the content update frequency of different areas that are dynamically refreshed, and for the area with the excessively high content update frequency, the ghost clearing effect is not obvious, so that the content update frequency of the area can be considered when the ghost clearing is performed, for example, for the window status bar, status information, such as a progress bar or a text message, generally used for displaying the running status information of the application program, for example, for the system power area, the update frequency is low, and the ghost clearing process can be performed after updating every moment, or after updating every half hour, for example. Further, the content text area of the application window or the time display area of the system may be updated continuously with the browsing process of the user, and the update frequency may be equal to 1 minute, or may be equal to 5 minutes, or the ghost clearing process may be performed. However, for the video area of the application window, the content update frequency is very fast, and then the ghost cleaning process is not necessary. Therefore, the user can correspondingly set the preset updating frequency, and the region with the content updating frequency higher than the preset updating frequency, such as a video region and the like, does not need to be cleaned, and for the region with the content updating frequency lower than the preset updating frequency, the region is easy to generate the ghost due to the influence of the insufficient driving or the change region, and the region needs to be determined as a candidate cleaning region. By simplifying the ghost eliminating area, eliminating the area with high refreshing frequency, reducing the data volume of ghost eliminating treatment, improving the ghost eliminating efficiency and providing smooth reading impression for users while guaranteeing the picture display effect.

Step S103, confirming the peripheral area which is away from the edge pixels of the target change area by a preset pixel number.

Since the area where the residual image appears is the peripheral area of the pixel change area, the processor confirms the area which is away from the edge pixels of the pixel change area by a preset pixel number as the peripheral area, wherein the preset pixel number can determine a possible residual image influence area according to the test result of the equipment before leaving the factory, specifically, the pixel number away from the edge pixels, and as an example, fig. 6 is a schematic diagram for determining the peripheral area of the edge pixels, and as shown in fig. 6, the current preset pixel number is 2, an area which extends by 2 pixel points in the total 8 directions and is located at the upper, lower, left, right, upper, lower, left and lower, and lower is centered on one edge pixel, and then the part located in the change area is removed, so that the peripheral area of the pixel change area can be obtained, and the peripheral area is the target area which needs residual image removal processing.

And step S104, refreshing the picture of the pixel change area and carrying out residual image removal processing on the peripheral area.

In a specific implementation process, the purpose of performing the ghost elimination processing on the peripheral area is to maintain the original color value of the peripheral area unchanged, and the effect of the driving electric field of the changed area is avoided. For example, a specific procedure of the ghost elimination process may be to record the current color value of each pixel point in the peripheral area as the target color value before the picture refresh starts; after the refreshing of the picture is completed, after the color of each pixel point is reset, the pixel color value of each pixel point is restored to the corresponding target color value, for example, the pixel points of the peripheral area can be changed to be full black and then refreshed to be full white, and the resetting is completed. Through the mode, after the image refreshing affects the peripheral area, the color value of the peripheral area is recovered, so that the purpose of removing the residual shadow is achieved. Alternatively, another specific procedure of the ghost elimination process may be to apply a holding voltage to each pixel point in the peripheral area until the pixel change area ends the frame refresh. Specifically, a driving voltage is applied to the ink capsule corresponding to the pixel point of the peripheral area, so that the pixel point of the area can resist, and the adjacent pixels in the change area display the original display effect based on crosstalk generated when the driving voltage applied by the picture refreshing. For example, if a pixel in a peripheral area has a gray value FF, i.e., is displayed as white, and if a pixel in an adjacent change area is refreshed and then is set to black, the pixel may be displayed as gray due to electric field crosstalk, so that an anti-disturbance waveform may be applied to the pixel, and the pixel may continue to remain white. Of course, there are other embodiments of maintaining the original color values of the peripheral area, and the foregoing two processes are merely exemplary, and the present application is not limited thereto.

In the above-mentioned embodiment of the present application, when the image to be displayed is received under the condition that the ghost image removing function is already turned on, the image to be displayed is compared with the current display image to determine the pixel change area; performing content feature recognition on the current display content and the content to be displayed of the pixel change region, and determining a region meeting the preset feature requirement from the pixel change region as a target change region; confirming peripheral areas which are separated from edge pixels of the target change area by a preset pixel number; and refreshing the picture of the pixel change area, and performing residual image removal processing on the peripheral area. The method has the advantages that the mode of determining the target change area from the pixel change area is realized, the picture content required to be processed for removing the ghost is reduced, the ghost removal speed is improved, meanwhile, the ghost removal is carried out on the peripheral area corresponding to the target change area meeting the content characteristics, the display effect of ghost removal is effectively ensured, the operation efficiency is high, the display effect of picture update is good, and the use experience of a user is optimized.

Fig. 7 is a schematic structural diagram of a screen updating device of an ink screen according to an embodiment of the present application, and referring to fig. 7, the screen updating device includes a change area determining unit 101, a target area determining unit 102, a peripheral area determining unit 103, and a screen updating unit 104.

The change area determining unit 101 is configured to determine, when the ghost clearing function has been started, a candidate clearing area according to a window structure type of a local area among a plurality of local areas divided from an application window that is currently displayed, where the local area is divided according to a window structure of the application window;

a target area determining unit 102, configured to determine, when receiving a frame to be displayed, content to be displayed of the candidate clearing area based on the frame to be displayed; performing content feature recognition on the current display content and the content to be displayed of the candidate clearing area, and determining a subarea meeting the preset feature requirement from the candidate clearing area as a target clearing area;

a peripheral region determining unit 103, configured to determine a pixel change region by comparing the picture to be displayed with the pixels of the current display picture, extract a pixel change sub-region falling in the target removal region from the pixel change region, and confirm a peripheral region separated from edge pixels of the pixel change sub-region by a preset number of pixels;

and a picture updating unit 104, configured to perform picture refreshing on the pixel change region and perform residual image removal processing on the peripheral region.

On the basis of the foregoing embodiment, the content features include text features and graphic features;

the target area determination unit 102 includes:

On the basis of the foregoing embodiment, the target area determination unit 102 includes:

Based on the foregoing embodiment, the update characteristics corresponding to the window structure type include dynamic refresh and static display;

the target area determination unit 102 includes:

On the basis of the foregoing embodiment, the overall display area of the ink screen is divided into at least two display sub-areas, and each display sub-area performs image refreshing according to a corresponding refresh type;

the change region determination unit 101 includes,

On the basis of the foregoing embodiment, the change region determination unit 101 includes:

On the basis of the foregoing embodiment, the screen updating unit 104 includes:

In the above-mentioned embodiment, in the image updating device of the ink screen according to the embodiment of the present application, when the image to be displayed is received under the condition that the ghost image removing function is already turned on, the image to be displayed is compared with the current image to determine the pixel change area; performing content feature recognition on the current display content and the content to be displayed of the pixel change region, and determining a region meeting the preset feature requirement from the pixel change region as a target change region; confirming peripheral areas which are separated from edge pixels of the target change area by a preset pixel number; and refreshing the picture of the pixel change area, and performing residual image removal processing on the peripheral area. The method has the advantages that the mode of determining the target change area from the pixel change area is realized, the picture content required to be processed for removing the ghost is reduced, the ghost removal speed is improved, meanwhile, the ghost removal is carried out on the peripheral area corresponding to the target change area meeting the content characteristics, the display effect of ghost removal is effectively ensured, the operation efficiency is high, the display effect of picture update is good, and the use experience of a user is optimized.

Fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application, and as shown in fig. 8, the electronic device includes a processor 201, a memory 202, an input device 203, an output device 204, and a communication device 205; the number of processors 201 in the electronic device may be one or more, one processor 201 being taken as an example in fig. 8; the processor 201 memory 201, input device 203, output device 204, and communication device 205 in the electronic device may be connected by a bus or other means, for example by a bus connection in fig. 8.

The memory 202 is a computer-readable storage medium that can be used to store a software program, a computer-executable program, and a module, such as program instructions/modules (e.g., the change area determination unit 101, the target area determination unit 102, the peripheral area determination unit 103, the screen update unit 104) corresponding to screen update in the embodiment of the present application. The processor 201 executes various functional applications of the electronic device and data processing, i.e., realizes the above-described screen update, by running software programs, instructions, and modules stored in the memory 202.

The memory 202 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for functions; the storage data area may store data created according to the use of the electronic device, etc. In addition, memory 202 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some examples, memory 202 may further include memory located remotely from processor 201, which may be connected to the electronic device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 203 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the electronic device, such as an ink screen with touch control. The output device 204 in this embodiment may be an ink screen, and may further include a sound output device or other display device.

The electronic equipment comprises the picture updating device, can be used for executing any picture updating method, and has corresponding functions and beneficial effects.

The embodiments of the present application also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are for performing a picture update method comprising: when the image sticking elimination function is started and the image to be displayed is received, comparing the image to be displayed with the current image to determine a pixel change area; performing content feature recognition on the current display content and the content to be displayed of the pixel change region, and determining a region meeting the preset feature requirement from the pixel change region as a target change region; confirming peripheral areas which are separated from edge pixels of the target change area by a preset pixel number; and refreshing the picture of the pixel change area, and performing residual image removal processing on the peripheral area. The computer program, when executed by the processor, can also realize related operations in other picture updating methods provided in any embodiment of the present application, and has corresponding functions and beneficial effects.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product.

Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, 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 specified in the flowchart flow or flows and/or block diagram block or blocks. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory. The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, etc., such as Read Only Memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.

Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.

Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims

1. A picture updating method of an ink screen, comprising:

2. The picture updating method as claimed in claim 1, wherein the content features include text features and graphic features;

3. The screen updating method according to claim 1, wherein after the determination of the pixel change area and before the content feature recognition of the currently displayed content and the content to be displayed of the pixel change area, further comprising:

4. A picture updating method as claimed in claim 3, wherein the update characteristics corresponding to the window structure type include dynamic refresh and static display;

5. The picture updating method according to claim 4, wherein the selecting the target local area whose update characteristic is dynamic refresh from the local areas as the candidate clear area comprises:

6. The picture updating method according to claim 1, wherein the whole display area of the ink screen is divided into at least two display sub-areas, and each display sub-area performs picture refreshing by a corresponding refresh type;

7. The screen updating method according to claim 6, further comprising, after said confirming whether or not there is a first display sub-area in a screen refresh in the entire display area of the ink screen:

8. The picture updating method according to any one of claims 1 to 7, wherein the performing the ghost elimination process on the peripheral area includes:

9. The picture updating method according to any one of claims 1 to 7, wherein the performing the ghost elimination process on the peripheral area includes:

10. A picture updating apparatus of an ink screen, comprising:

11. An electronic device, the electronic device comprising:

an ink screen;

one or more processors;

a memory for storing one or more programs;

the one or more programs, when executed by the one or more processors, cause the electronic device to implement the picture update method of any of claims 1-9.

12. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the picture update method according to any one of claims 1-9.