CN117456936A - Ink screen driving method and device, electronic equipment and storage medium - Google Patents

Ink screen driving method and device, electronic equipment and storage medium Download PDF

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Publication number
CN117456936A
CN117456936A CN202311499282.XA CN202311499282A CN117456936A CN 117456936 A CN117456936 A CN 117456936A CN 202311499282 A CN202311499282 A CN 202311499282A CN 117456936 A CN117456936 A CN 117456936A
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China
Prior art keywords
driving
display
ink screen
displayed
picture
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CN202311499282.XA
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Chinese (zh)
Inventor
许俊文
朱增
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ONYX INTERNATIONAL Inc
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ONYX INTERNATIONAL Inc
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Priority to CN202311499282.XA priority Critical patent/CN117456936A/en
Publication of CN117456936A publication Critical patent/CN117456936A/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3433Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
    • G09G3/344Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2230/00Details of flat display driving waveforms

Abstract

The application discloses a driving method, a driving device, electronic equipment and a storage medium of an ink screen, wherein the driving method comprises the following steps: alternately driving the ink screen to display a picture to be displayed by adopting a first driving mode and a second driving mode; the first driving mode includes: acquiring a first driving waveform of a picture to be displayed, and driving the ink screen to display the picture to be displayed by using the first driving waveform; the second driving mode includes: and acquiring a compensation driving waveform of the picture to be displayed, and driving the ink screen to display the picture to be displayed by using the compensation driving waveform. According to the driving method, the first driving mode and the second driving mode are adopted to alternately drive the ink screen to display the picture to be displayed, so that the technical problem that some pixels become black more and more to generate black gray scale precipitation when the ink screen is refreshed in a compensation refreshing mode for a long time can be avoided, and the ink screen can be subjected to compensation refreshing to improve the display effect.

Description

Ink screen driving method and device, electronic equipment and storage medium
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a driving method and apparatus for an ink screen, an electronic device, and a storage medium.
Background
In general, an ink screen will set a liquid containing color particles in an ink capsule, and electrodes are respectively disposed at two sides of the ink capsule, where the color particles include positively charged white particles and negatively charged black particles, and when a voltage difference is generated between the two electrodes, the color particles will be respectively attracted and repelled due to the polarity effect of the voltage difference, which is equivalent to forming an electric field between the two electrodes, and the two electrodes serve as two poles of the electric field, so that the color particles will move from one electrode to the other electrode, and in this way, each pixel point can display white or black, so as to realize black-white display of the content.
In order to control the change of the ink capsule corresponding to each pixel to obtain the expected pixel gray value, the prior art sends a driving pulse to the display controller of the ink screen to control the pixel point to reach the expected pixel gray value, wherein the driving pulse comprises a change signal of the voltage difference (driving voltage) between the electrodes on two sides of the ink capsule and the duration time (represented by a frame form) of the change signal, and the display controller controls the ink capsule according to the driving pulse to change the pixel gray value.
The ink screen is a bistable electrophoretic display device adopting the reflection display principle, so that the ink screen can keep the original display picture for a long time after the driving voltage is removed. Meanwhile, the ink screen adopts a reflective display principle and displays content by reflecting ambient light, so the ink screen is also called electronic paper and is widely used for electronic readers, mobile terminal display screens or computer displays.
In the process of actually controlling the ink screen to display, errors occur in the movement of the color particles due to various reasons, and the color particles cannot move to a designated position exactly as desired by a user, which may bring about a ghost phenomenon common to the ink screen. For example, since the 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, an electric field formed by two electrodes corresponding to one ink capsule design does not completely restrict color particles acting in the one ink capsule, and when color particles in one ink capsule move under the action of the electric field, weak electric fields occur in adjacent ink capsules, and unexpected movement of the color particles occurs. Therefore, when the ink screen displays an image, the range of the actual influence in the ink screen is larger than the expected range corresponding to the image to be displayed according to the display control electric field generated by the image components to be displayed; when the screen needs to be refreshed and the original image component is eliminated, the outline (the part with increased display area) of the eliminated image component is left in the screen, and unexpected afterimages appear. In order to solve the technical problem of ghost, a person skilled in the art adopts a compensation refresh mode to refresh and display, wherein the compensation refresh mode is to drive pixels with changed color values and pixels with unchanged color values by different driving waveforms respectively, but if the compensation refresh mode is adopted for a long time to refresh and display, some pixels become more and more black, so that the problem of black gray scale precipitation is generated.
Disclosure of Invention
The application provides a driving method, a driving device, electronic equipment and a storage medium of an ink screen, so as to solve the technical problem that black gray scale precipitation is generated when an existing ink screen displays a picture.
In a first aspect, the present application provides a driving method of an ink screen, the driving method including:
alternately driving the ink screen to display a picture to be displayed by adopting a first driving mode and a second driving mode;
the first driving mode includes:
acquiring a first driving waveform of a picture to be displayed, and driving the ink screen to display the picture to be displayed by using the first driving waveform;
the second driving mode includes:
and acquiring a compensation driving waveform of the picture to be displayed, and driving the ink screen to display the picture to be displayed by using the compensation driving waveform.
In some embodiments of the present application, the step of alternately driving the ink screen to display a picture to be displayed in the first driving mode and the second driving mode includes:
and periodically and alternately driving the ink screen to display a picture to be displayed by adopting the first driving mode and the second driving mode.
In some embodiments of the present application, the step of alternately driving the ink screen to display a picture to be displayed in the first driving mode and the second driving mode includes:
Driving the ink screen to display a picture to be displayed by adopting a first driving mode in a first time period;
and driving the ink screen to display a picture to be displayed by adopting a second driving mode in a second time period.
In some embodiments of the present application, the step of alternately driving the ink screen to display a picture to be displayed in the first driving mode and the second driving mode includes:
acquiring N display pictures which are newly displayed by the ink screen, wherein N is more than or equal to 2;
obtaining the accumulated number of pixels with changed pixel color values of the N display pictures;
judging whether the accumulated number is larger than a number threshold;
if yes, driving the ink screen to display a picture to be displayed by adopting a first driving mode in a first time period;
and if not, driving the ink screen to display a picture to be displayed by adopting a second driving mode in a second time period.
In some embodiments of the present application, the step of alternately driving the ink screen to display a picture to be displayed in the first driving mode and the second driving mode includes:
acquiring N display pictures which are newly displayed by the ink screen, wherein N is more than or equal to 2;
obtaining the accumulated number of pixels with changed pixel color values of the N display pictures;
Obtaining the display time length of the N display pictures;
obtaining the ratio of the accumulated number to the display duration;
judging whether the ratio is larger than a quantity threshold value or not;
if yes, driving the ink screen to display a picture to be displayed by adopting a first driving mode in a first time period;
and if not, driving the ink screen to display a picture to be displayed by adopting a second driving mode in a second time period.
In some embodiments of the present application, the duration of the first time period is obtained from the accumulated number.
In some embodiments of the present application, the duration of the first time period is obtained from the ratio.
In some embodiments of the present application, the duration of the second time period is obtained according to the first time period and a duration coefficient.
In some embodiments of the present application, the step of obtaining the cumulative number of pixels whose pixel color values of the N display frames have changed includes:
comparing two adjacent display pictures in the N display pictures from the first display picture to the N display picture to obtain a first number of pixels with different pixel color values of N-1 pairs of adjacent two display pictures;
and accumulating the first numbers of pixels with different pixel color values of the adjacent two display frames of the N-1 pairs to obtain accumulated numbers.
In some embodiments of the present application, the duration of the first period of time and the duration of the second period of time are predetermined constants.
In some embodiments of the present application, the first time period is adjacent to the second time period.
In some embodiments of the present application, the step of obtaining N display frames that are newly displayed on the ink screen includes:
and acquiring N display frames which are newly displayed in the video area of the ink screen.
In some embodiments of the present application, before the step of alternately driving the ink screen to display a picture to be displayed in the first driving mode and the second driving mode, the driving method includes: (determining whether to use alternate driving by determining whether the application belongs to a preset application)
Acquiring application information of an application program operated by the ink screen when a picture to be displayed is displayed;
judging whether the application program belongs to a preset application or not according to the application information, and executing the next step if the application program belongs to the preset application.
In some embodiments of the present application, the preset application includes a video playing application program and an application program containing a dynamic display screen.
In some embodiments of the present application, the step of obtaining a compensation driving waveform of the picture to be displayed, and driving the ink screen to display the picture to be displayed by using the compensation driving waveform includes:
Comparing the image information of the current display picture with the image information of the picture to be displayed to obtain a first type pixel and a second type pixel of the picture to be displayed, wherein the first type pixel comprises pixels with different pixel color values, which are displayed on the same pixel point of the ink screen, of the picture to be displayed and the current display picture, and the second type pixel comprises pixels with the same pixel color value, which are displayed on the same pixel point of the ink screen, of the picture to be displayed and the current display picture;
confirming a first type pixel driving waveform corresponding to the first type pixel and a second type pixel driving waveform corresponding to the second type pixel according to a current refreshing mode of the ink screen, wherein the compensation driving waveform comprises the first type pixel driving waveform and the second type pixel driving waveform;
and applying the first-type pixel driving waveform to the pixel points corresponding to the first-type pixels of the ink screen, and applying the second-type pixel driving waveform to the pixel points corresponding to the second-type pixels of the ink screen so as to enable the area corresponding to the second-type pixels of the ink screen to keep the original display effect.
In some embodiments of the present application, the second type of pixels include peripheral pixels and compensation pixels, the peripheral pixels are pixels in the second type of pixels, the minimum distance between the pixels and the first type of pixels is within a preset range, and the compensation pixels are the rest pixels except the peripheral pixels in the second type of pixels;
Correspondingly, the second type of pixel driving waveforms include a peripheral pixel driving waveform and a compensation pixel driving waveform, the peripheral pixel driving waveform is applied to the pixel points corresponding to the peripheral pixels of the ink screen so that the original display effect of the area corresponding to the peripheral pixels of the ink screen is maintained, and the compensation pixel driving waveform is applied to the pixel points corresponding to the compensation pixels of the ink screen so that the display compensation is performed on the area corresponding to the compensation pixels of the ink screen.
In some embodiments of the present application, the peripheral pixel drive waveform includes an anti-disturbance phase and a second hold phase.
In some embodiments of the present application, the compensated pixel drive waveform includes a compensated refresh phase and a third hold phase.
In some embodiments of the present application, the peripheral pixel drive waveform includes a plurality of anti-disturbance phases and a plurality of second hold phases disposed at intervals.
In some embodiments of the present application, the compensated pixel drive waveform includes a plurality of compensated refresh phases and a plurality of third hold phases arranged at intervals.
In a second aspect, embodiments of the present application further provide a driving device for an ink screen, where the driving device includes:
The driving module is used for alternately driving the ink screen to display a picture to be displayed by adopting a first driving mode and a second driving mode;
the first driving mode includes:
acquiring a first driving waveform of a picture to be displayed, and driving the ink screen to display the picture to be displayed by using the first driving waveform;
the second driving mode includes:
and acquiring a compensation driving waveform of the picture to be displayed, and driving the ink screen to display the picture to be displayed by using the compensation driving waveform.
In a third aspect, an embodiment of the present application further provides an electronic device, including:
an ink screen;
one or more processors;
a memory for storing one or more computer programs;
when the one or more computer programs are executed by the one or more processors, the electronic device is caused to implement the method of driving an ink screen according to any one of the first aspects.
In a fourth aspect, embodiments of the present application further provide a computer readable storage medium having a computer program stored thereon, the computer program, when executed by a processor, implementing the method for driving an ink screen according to any one of the first aspects.
The application provides a driving method and device of an ink screen, electronic equipment and a storage medium, wherein the driving method comprises the following steps: alternately driving the ink screen to display a picture to be displayed by adopting a first driving mode and a second driving mode; the first driving mode includes: acquiring a first driving waveform of a picture to be displayed, and driving the ink screen to display the picture to be displayed by using the first driving waveform; the second driving mode includes: and acquiring a compensation driving waveform of the picture to be displayed, and driving the ink screen to display the picture to be displayed by using the compensation driving waveform. According to the driving method, the first driving mode and the second driving mode are adopted to alternately drive the ink screen to display the picture to be displayed, so that the technical problem that some pixels become black more and more to generate black gray scale precipitation when the ink screen is refreshed in a compensation refreshing mode for a long time can be avoided, and the ink screen can be subjected to compensation refreshing to improve the display effect.
Drawings
FIG. 1 is a flow chart of a method for driving an ink screen according to the present application;
FIG. 2 is a flowchart of a driving method of an ink screen according to an embodiment of the present disclosure;
FIG. 3 is a flow chart of a second driving mode of a driving method of an ink screen provided in the present application;
fig. 4 is a flowchart of a second embodiment of a driving method of an ink screen provided in the present application;
fig. 5 is a flowchart of step S102 of a driving method of an ink screen provided in the present application;
fig. 6 is a flowchart of a third embodiment of a driving method of an ink screen provided in the present application;
fig. 7 is a flowchart of step S112 of a driving method of an ink screen provided in the present application;
fig. 8 is a flowchart of a fourth embodiment of a driving method of an ink screen provided in the present application;
fig. 9 is a schematic structural diagram of a driving device of an ink screen provided in the present application;
fig. 10 is a schematic structural diagram of an electronic device provided in the present application.
Description of the embodiments
Embodiments of the present application are described in further detail below with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the embodiments of the application and are not limiting of the 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 objects 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 present application may be practiced in orders other than those illustrated and described herein, and that the objects identified by "first," "second," etc. are generally of a type that do not limit the number of objects, e.g., the first object may be one or more, and are not to be construed as indicating or implying 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 terms in this application will be understood by those of ordinary skill in the art in a specific context.
The display control method provided by the embodiment of the application can be used for an electronic device carrying an ink screen, wherein the electronic device can be an electronic device such as an ink screen based on the ink screen, a tablet personal computer, a mobile phone, an electronic reader, a personal digital assistant (Personal Digital Assistant, PDA for short) and the like, and specifically the electronic device can comprise the ink screen, an image processing module, a microcontroller, a screen driving module, a time sequence control circuit and a power supply control circuit.
The following describes various embodiments of the present invention in detail.
Fig. 1 is a flowchart of a driving method of an ink screen provided in the present application, where the driving method of the ink screen provided in the embodiments of the present application may be performed by a driving device of the ink screen, and the driving device of the ink screen may be implemented by hardware and/or software and integrated in an electronic device on which the ink screen is mounted.
The following description will be made taking as an example a driving method in which the driving device of the ink panel performs the ink panel. Referring to fig. 1, the driving method of the ink screen includes:
step S10: alternately driving the ink screen to display a picture to be displayed by adopting a first driving mode and a second driving mode;
the first driving mode includes:
Acquiring a first driving waveform of a picture to be displayed, and driving the ink screen to display the picture to be displayed by using the first driving waveform;
the second driving mode includes:
and acquiring a compensation driving waveform of the picture to be displayed, and driving the ink screen to display the picture to be displayed by using the compensation driving waveform.
When the ink screen is controlled to display images, the process of controlling pigment particles to be adsorbed at the bottom or the top of the capsule through an electric field is a physical process, the ink screen can provide a waveform file, a waveform sequence of a picture to be displayed is determined according to the waveform file and a picture currently displayed by the ink screen, and different control signals are applied to the ink screen according to the waveform sequence. In this application, the first driving waveform is determined according to the waveform file and the current display screen of the ink screen.
In the ink screen, the movement of the color particles may be unpredictable, which may cause problems such as ghost, display sharpness being low, contrast being low, and the like. Particularly, in the fast refresh mode of A2, DU4, etc., in order to make the color particles move fast, the driving voltage may be insufficient, so that some of the color particles do not move to the expected position (for example, in the A2 mode, the refreshed color particles are expected to move to the limit position, and the pixel appears black or white), which may cause problems of low definition, unexpected ghost, low contrast, etc. In the past refreshing process, pixels with unchanged color values are refreshed (of course, the color values of the pixels in the part cannot change in the current round of refreshing), so as to avoid the problem of reduced picture display quality, the pixels with unchanged color values can be compensated, that is, the ink screen is driven by adopting a compensation refreshing driving mode. Specifically, the pixels with changed color values and the pixels with unchanged color values are driven by different driving waveforms, and the applicant tests show that if the refresh display is performed by adopting the compensation refresh mode for a long time, some pixels become black more and more, and black gray scale precipitation is generated.
The driving method adopts the first driving mode and the second driving mode to alternately drive the ink screen to display the picture to be displayed, namely adopts the first driving mode and the second driving mode to alternately drive the ink screen to display the picture to be displayed, wherein the first driving mode is the normal driving mode of the ink screen, and the second driving mode is the compensation refreshing driving mode of the ink screen, so that the ink screen is not always driven to carry out refreshing display in a compensation refreshing mode, on one hand, the technical problem that some pixels are more and more black to generate black gray scale precipitation when the refreshing display is carried out in a compensation refreshing mode for a long time can be avoided, and on the other hand, the ink screen is also subjected to compensation refreshing, so that the display effect is improved.
From the above, the present application may use the first driving mode to drive the ink screen to display the image to be displayed for a period of time, then may use the second driving mode to drive the ink screen to display the image to be displayed, or may use the second driving mode to drive the ink screen to display the image to be displayed after a period of time is elapsed, so long as the first driving mode and the second driving mode are used to alternately drive the ink screen to display the image to be displayed within a preset period of time, thereby achieving the purpose of avoiding that some pixels become darker and black gray scale precipitation is generated.
That is, the ink screen may be driven by other driving modes between the first driving mode and the second driving mode to display the image to be displayed, where there is a time interval between the first driving mode and the second driving mode; there may also be no other driving mode between the first driving mode and the second driving mode, where the first driving mode and the second driving mode are adjacent.
In the prior art, the technical problem that when a driving waveform is applied to a part of pixel points of the ink screen or when a driving waveform is not applied to the part of pixel points of the ink screen, the part of pixel points of the ink screen cannot reach an expected color value for displaying is solved, in order to solve the technical problem that the pixel points cannot reach the expected color value for displaying, the applicant drives the ink screen to display a picture to be displayed by using the compensation driving waveform to obtain a good effect, that is, drives the ink screen to display the picture to be displayed by using the compensation driving waveform so that the color value of the pixel points of the ink screen reaches the display effect of the color value of the picture to be displayed, in the scheme, pixels with the same color value of the pixel points of the picture to be displayed as the pixels of the current display picture are defined as unchanged pixels, and pixels with different color values of the pixel points of the picture to be displayed as changed pixels, and the pixels with different color values of the pixel points of the current display picture are defined as changed pixels.
There are various specific situations that part of pixels of the ink screen cannot reach the expected color value display, and in particular, reference may be made to the patent filed by the applicant: an ink screen display control method and device based on drive compensation, an ink screen display control method and device based on key frames, an electronic ink screen drive method, device, electronic equipment and storage medium, and an ink screen display control method, device, equipment and storage medium, wherein the electronic ink screen is disclosed as CN 115862556B, and the ink screen display control method, device, equipment and storage medium is disclosed as CN 116543712A, respectively, of the patent publication CN 115359761B. As can be seen from the above, the compensation driving method is a driving method or a display control method for solving the problem that the pixel points cannot reach the expected color value, that is, the compensation driving waveform is used to drive the ink screen to display the picture to be displayed so that the color value of the pixel points of the ink screen reaches the expected color gray scale, wherein the part of the pixel points which cannot reach the expected color value can include unchanged pixels and changed pixels. In this scheme, a pixel whose pixel color value is the same as that of the current display frame is defined as a constant pixel, and a pixel whose pixel color value is different from that of the current display frame is defined as a variable pixel. When a driving waveform is applied to a changed pixel, there is a case that the color value of the changed pixel does not reach the expected color gray level, and then a driving mode needs to be compensated, and the case can be referred to disclosure of a driving compensation-based ink screen display control method and device of patent publication No. CN115359762B, a key frame-based ink screen display control method and device of patent publication No. CN 115359761B, and a display control method, device, equipment and storage medium of the ink screen of patent publication No. CN 116543712A; when the unchanged pixels do not apply the driving waveform, there is a case that the color value of the unchanged pixels does not reach the expected color gray level, and then a compensation driving mode is needed, and the case can be referred to the disclosure of the driving method, the device, the electronic equipment and the storage medium of the electronic ink screen with the patent publication number of CN 115862556B. Moreover, the foregoing is only used as some ways of understanding that the compensation driving waveform is used to drive the ink screen to display the picture to be displayed in the present application, and is not limited to the technical features of driving the ink screen to display the picture to be displayed in the present application, as long as the condition that the compensation driving waveform is used to drive the ink screen to display the picture to be displayed so that the color value of the pixel point of the ink screen reaches the expected color gray level is satisfied, which falls within the protection scope of the present application.
Referring to fig. 2, fig. 2 is a flowchart of a driving method of an ink screen according to an embodiment of the present application. Specifically, in this embodiment, the step S10 includes:
step S11: driving the ink screen to display a picture to be displayed by adopting a first driving mode in a first time period;
step S12: and driving the ink screen to display a picture to be displayed by adopting a second driving mode in a second time period.
In an embodiment of the present application, the duration of the first period of time and the duration of the second period of time are preset constants. That is, the present application may drive the ink screen to display the image to be displayed in a first driving mode within a set time, and then drive the ink screen to display the image to be displayed in a second driving mode within the set time, so as to implement alternate driving. The duration of the first time period and the duration of the second time period adopt a preset mode, so that the calculation process can be reduced, and the reaction speed is improved. Of course, the duration of the first time period and the duration of the second time period may also be dynamically set.
Further, in some embodiments of the present application, the first period is adjacent to the second period, that is, after the first driving mode is adopted to drive the ink screen to display the picture to be displayed in the first period, the second driving mode is adopted to drive the ink screen to display the picture to be displayed in the second period, and then the first driving mode is adopted to drive the ink screen to display the picture to be displayed in the first period, so that the cycle is that when the second driving mode is adopted to drive some pixels of the ink screen to generate black gray scale precipitation, the first driving mode can be adopted to drive the ink screen to display the picture to be displayed, so that the black gray scale precipitation is eliminated, the speed of eliminating the black gray scale precipitation of the ink screen is improved, and the display effect is improved.
Of course, it is conceivable that, in other embodiments of the present application, the first period of time is not adjacent to the second period of time, so long as the ink screen is driven alternately by using the first driving mode and the second driving mode within a preset period of time, which also falls within the protection scope of the present application.
Still further, in an embodiment of the present application, the step of alternately driving the ink screen to display the picture to be displayed in the first driving mode and the second driving mode includes:
and periodically and alternately driving the ink screen to display a picture to be displayed by adopting the first driving mode and the second driving mode.
According to the method, the driving mode of the ink screen can be regular by adopting the first driving mode and the second driving mode to periodically and alternately drive, so that black gray scale precipitation can be rapidly eliminated, and the ink screen has a more stable display effect.
Referring to fig. 3, fig. 3 is a flowchart of a second driving mode of the driving method of the ink screen provided in the present application. Further, in this embodiment, the step of obtaining the compensation driving waveform of the picture to be displayed and driving the ink screen to display the picture to be displayed by using the compensation driving waveform includes:
Step S21: comparing the image information of the current display picture with the image information of the picture to be displayed to obtain a first type pixel and a second type pixel of the picture to be displayed, wherein the first type pixel comprises pixels with different pixel color values, which are displayed on the same pixel point of the ink screen, of the picture to be displayed and the current display picture, and the second type pixel comprises pixels with the same pixel color value, which are displayed on the same pixel point of the ink screen, of the picture to be displayed and the current display picture;
step S22: confirming a first type pixel driving waveform corresponding to the first type pixel and a second type pixel driving waveform corresponding to the second type pixel according to a current refreshing mode of the ink screen, wherein the compensation driving waveform comprises the first type pixel driving waveform and the second type pixel driving waveform;
step S23: and applying the first-type pixel driving waveform to the pixel points corresponding to the first-type pixels of the ink screen, and applying the second-type pixel driving waveform to the pixel points corresponding to the second-type pixels of the ink screen so as to enable the area corresponding to the second-type pixels of the ink screen to keep the original display effect.
In the display based on the ink screen, when the picture to be displayed is displayed, the current display picture needs to be refreshed, the image information of the display picture of the ink screen is an array formed by a plurality of pixels, the image information of the picture to be displayed and the image information of the current display picture are overlapped and compared, the color value of a single pixel in the picture to be displayed is probably the same as the color value of the pixel in the current display picture, and is probably different from the color value of the pixel in the current display picture. Depending on the possible variations, only one of the unchanged pixels and the changed pixels may be present in the picture to be displayed, or both the unchanged pixels and the changed pixels may be present. If there are only unchanged pixels, all pixels continue to be kept, and if there are only changed pixels, all pixels are refreshed entirely. The present application is directed to a case where a current display frame is taken as a reference, and a constant pixel and a variable pixel can be obtained in a frame to be displayed. It will be appreciated that the color value (which may be a gray value or a pixel value) of the unchanged pixel, i.e. the image pixel, does not change, and correspondingly, the color value (which may be a gray value or a pixel value) of the changed pixel, i.e. the image pixel, changes. The first type of pixels comprise pixels with different pixel color values, wherein the pixels with different pixel color values are displayed on the same pixel point of the ink screen on the picture to be displayed and the current display picture, namely the first type of pixels are changed pixels; the second type of pixels comprise pixels with the same pixel color value, which are displayed on the same pixel point of the ink screen, of the picture to be displayed and the current display picture, namely the second type of pixels are unchanged pixels.
In the driving method, a first type pixel driving waveform corresponding to the first type pixel is matched from a Look-Up Table (LUT) stored in the electronic device according to a current screen refreshing mode, and a waveform for driving the first type pixel to refresh and display a new image component is defined as the first type pixel driving waveform for convenience of distinguishing. The scheme can be used in a plurality of refresh modes, and is applicable to the refresh modes, the future available refresh modes and other refresh modes. It will be appreciated that the refresh mode may be different for the same ink screen, and the resulting drive waveforms (e.g., first type pixel drive waveforms) for the pixels to be refreshed (e.g., first type pixels) may be different.
And then confirming a first type pixel driving waveform corresponding to the first type pixel and a second type pixel driving waveform corresponding to the second type pixel according to the current refreshing mode of the ink screen, wherein the compensation driving waveform comprises the first type pixel driving waveform and the second type pixel driving waveform. And then, applying the first type pixel driving waveform to the pixel points corresponding to the first type pixels of the ink screen, and applying the second type pixel driving waveform to the pixel points corresponding to the second type pixels of the ink screen so as to enable the area corresponding to the second type pixels of the ink screen to keep the original display effect. And applying the second-type pixel driving waveforms to the pixel points corresponding to the second-type pixels of the ink screen so as to enable the areas corresponding to the second-type pixels of the ink screen to keep the original display effect, which is equivalent to refreshing the pixel areas with unchanged pictures, improving the picture quality or keeping the picture quality, thereby realizing compensation refreshing.
Still further, in an embodiment, the second type of pixels includes peripheral pixels and compensation pixels, the peripheral pixels are pixels in the second type of pixels having a minimum distance from the first type of pixels within a preset range, and the compensation pixels are the rest of pixels in the second type of pixels except the peripheral pixels;
correspondingly, the second type of pixel driving waveforms include a peripheral pixel driving waveform and a compensation pixel driving waveform, the peripheral pixel driving waveform is applied to the pixel points corresponding to the peripheral pixels of the ink screen so that the original display effect of the area corresponding to the peripheral pixels of the ink screen is maintained, and the compensation pixel driving waveform is applied to the pixel points corresponding to the compensation pixels of the ink screen so that the display compensation is performed on the area corresponding to the compensation pixels of the ink screen.
The applicant has found that when refreshing the first type of pixels, the unchanged pixels located at the periphery of the first type of pixels may have an afterimage due to the problem of electric field crosstalk. In order to eliminate or weaken the afterimage before the next picture refreshing, peripheral pixel driving waveforms are applied to peripheral pixels positioned at the periphery of the first type of pixels while refreshing the first type of pixels so that the original display effect of the area corresponding to the peripheral pixels is maintained, and the compensation pixel driving waveforms are applied to the pixel points corresponding to the compensation pixels so that the display compensation is performed on the area corresponding to the compensation pixels.
The peripheral pixel driving waveform is used for resisting the influence of electric field crosstalk on the movement of the color particles, so that the peripheral pixels display the original display effect (the original color value, the original gray value or the original color component) and the electronic equipment keeps the original image components. Similarly, the compensation pixel driving waveform is confirmed for the compensation pixel.
Because the pixels of the first type are refreshed by the pixel driving waveforms of the first type, the pixels adjacent to the pixels of the first type will have an afterimage due to the electric field crosstalk, and the pixel driving waveforms of the peripheral pixels will be used for eliminating the afterimage of the pixels of the second type. Thus, in essence, the matching of the peripheral pixel drive waveforms is affected by the first type of pixel drive waveforms, in other words, the refresh mode, the matching of the first type of pixel drive waveforms, and the peripheral pixel drive waveform matching have an associative relationship. The specific peripheral pixel driving waveform may be an anti-disturbance waveform which is fixedly arranged, or may be a waveform which corresponds to near cancellation crosstalk determined according to the adjacent first-class pixels, which is not particularly limited. The compensation pixel driving waveform is checked according to a predetermined compensation strategy.
The anti-disturbance peripheral pixel driving waveform is applied to the peripheral pixels, and the driving voltage is applied to the ink capsules corresponding to the peripheral pixels, so that the peripheral pixels can resist the crosstalk generated when the adjacent pixels apply the driving voltage based on the first-type pixel driving waveform, and the original display effect is presented. For example, if the original gray value of a peripheral pixel is FF (displayed as white), and the adjacent first-class pixel is refreshed and then is set to black, the peripheral pixel may be displayed as gray due to electric field crosstalk, so that a disturbance waveform needs to be applied to the peripheral pixel, so that the peripheral pixel continues to remain white. Because the peripheral pixels may form part of the ghost due to the refreshing of the first type of pixels if crosstalk is left, the ghost can be avoided by applying an anti-disturbance waveform to the peripheral pixels that causes them to exhibit the original display effect.
When the corresponding waveforms are applied to the pixels, the whole display quality of the picture needs to be considered, and the phenomenon of screen display is avoided, so that the peripheral pixel driving waveforms are selected by referring to the first-type pixel driving waveforms to be matched, and the property of the second-type pixel driving waveforms is close to that of the first-type pixel driving waveforms.
The fixed settings of the peripheral pixel drive waveforms and the compensation pixel drive waveforms may store corresponding sets of anti-tamper phase waveforms in a storage medium of the electronic device. In addition, since the peripheral pixels and the compensation pixels differ in pixel type, the peripheral pixel driving waveforms and the compensation pixel driving waveforms corresponding to the peripheral pixels and the compensation pixels of the same pixel value (color value or gradation value) are definitely different. Moreover, for two pixels belonging to the same pixel type but differing in pixel value, their corresponding waveforms may be different. And when the peripheral pixel driving waveform and the compensation pixel driving waveform correspond to the same pixel, the peripheral pixel driving waveform and the compensation pixel driving waveform are overlapped or sequentially applied to drive.
In order to ensure the display effect of the display screen, the peripheral pixel driving waveform comprises an anti-disturbance stage and a second holding stage, wherein the waveform voltage corresponding to the anti-disturbance stage is different from the waveform voltage corresponding to the second holding stage. The compensation pixel driving waveform comprises a compensation refreshing stage and a third maintaining stage, wherein the waveform voltage corresponding to the compensation refreshing stage is different from the waveform voltage corresponding to the third maintaining stage. By dividing the peripheral pixel driving waveforms and the compensation pixel driving waveforms into a driving stage and a holding stage, corresponding driving and holding are realized at different voltages, for example, driving is realized at a non-zero voltage stage, and the original display effect is maintained at a zero voltage stage. In practice, there may be no hold phase as an alternative implementation. Of course, the waveform voltages of the anti-disturbance stage and the second holding stage may be the same, and the waveform voltages of the compensation refresh stage and the third holding stage may be the same. In an embodiment of the present application, the driving voltages of the anti-disturbance stage and the compensation refresh stage are non-zero voltages, and the driving voltages of the second holding stage and the third holding stage are zero voltages.
In the specific driving process of disturbance rejection and compensation, the peripheral pixel driving waveform and the compensation pixel driving waveform may be periodic, and the peripheral pixel driving waveform includes a plurality of disturbance rejection stages and a plurality of second hold stages arranged at intervals, and the compensation pixel driving waveform includes a plurality of compensation refresh stages and a plurality of third hold stages arranged at intervals. Through the waveform design of a plurality of anti-disturbance stages and a compensation refreshing stage, the ghost can be eliminated step by step, the contrast is enhanced, and the user viewing experience is improved.
The peripheral pixels and the compensation pixels are divided into a plurality of refresh areas according to the distribution information, and the refresh areas sequentially apply corresponding peripheral pixel driving waveforms or compensation pixel driving waveforms. Wherein the refresh parameters corresponding to different refresh regions may be different.
And applying waveforms to the peripheral pixels or the compensation pixels, namely continuously refreshing the area with unchanged picture, continuously improving the picture quality or maintaining the picture quality, and eliminating the afterimage. In order to prevent the continuous refreshing process from affecting the user and reduce the occurrence of flickering, a refreshing design of the partial refreshing area is further adopted. The peripheral pixels and the compensation pixels are divided into a plurality of refresh regions, and the refresh regions may be rectangular, annular, or the like, and of course, the refresh regions may also be irregular in shape, and the specific shape is not limited herein. The refresh sequence of the refresh area (or the sequence of applying a frame of disturbance voltage) may be top-down or bottom-up, may be inside-out or outside-in, or may be sequential refresh between the spaced pixels, or even a combination of the above.
The selection of the refresh areas and the sequence can be manually controlled by a user, namely the refresh policy can be adjusted according to the input information of the user, and on the other hand, the targeted configuration can be carried out according to the screen parameters (namely each kind of screen has a corresponding regional refresh policy), in other words, the control module can automatically match the refresh policy according to the acquired screen information, and then the refresh policy is configured.
The refresh parameters (voltage of the disturbance phase, period of the peripheral pixel driving waveform or the compensation pixel driving waveform, duration of the disturbance-resistant phase of the peripheral pixel driving waveform or the compensation pixel driving waveform, number of frames of applied voltage in the duration, number of times that the unchanged pixels repeatedly start the disturbance phase, adjacent range size) of each refresh area may be uniform, i.e., the same refresh parameters are actually used for the whole screen; the refresh parameters of each refresh area may be configured to be inconsistent, for example, a still image component having a relatively high definition requirement may be relatively fine, and the number of frames in the continuous application time may be relatively large or the continuous application time may be relatively long among the refresh parameters of the unchanged pixels of the corresponding area.
The method comprises the steps that when the established display of a display picture is completed through an ink screen, waveform state parameters corresponding to each peripheral pixel and each compensation pixel can be counted; and resetting, refreshing and displaying the pixel point when the waveform state parameter of any pixel point is confirmed to meet the preset screen maintenance condition. The screen maintenance conditions include at least one of the following conditions: the pixel type corresponding to the pixel point is continuously the peripheral pixel or the compensation pixel, and the accumulated duration of the peripheral pixel in the anti-disturbance stage and/or the second holding stage reaches a corresponding preset duration threshold value, or the accumulated duration of the compensation pixel in the compensation refreshing stage and/or the third holding stage reaches a corresponding preset duration threshold value; the pixel types corresponding to the pixel points are continuously peripheral pixels or compensation pixels, and the accumulated times of the peripheral pixels entering the anti-disturbance stage and/or the second holding stage reach corresponding preset times thresholds, or the accumulated times of the compensation pixels entering the compensation refreshing stage and/or the third holding stage reach corresponding preset times thresholds; and the image refreshing times of the ink screen reach a preset refreshing threshold value. The reset refreshing mainly moves the color particles to the limit position (black or white is set by the pixel color value or the gray value), clears the picture content, and then redisplays the picture content. The reset refresh mode may be configured by a user, or an INIT (initialization) refresh mode may be used.
In this scheme, various parameters in the driving process can be triggered by a user or automatically configured by the system according to screen information. For example, the peripheral pixel driving waveforms (or the compensation pixel driving waveforms) may be different waveform sequences within each period, and the peripheral pixel or the compensation pixel maintains the pixel value as a continuous process, and the waveform sequences within each period may be adaptively adjusted according to the actual requirement, and the adjustment may be user-triggered or automatically configured by the system. The period of the peripheral pixel drive waveform and the compensation pixel drive waveform may be a period in which the peripheral pixels or the compensation pixels are adjusted to initiate an anti-disturbance phase, to initiate a compensation refresh phase, or to initiate a corresponding hold phase. In addition to adjusting the number of times that the second type of pixels repeatedly activate the anti-disturbance phase and the compensation pixels repeatedly activate the compensation, adjusting the number of times that the surrounding pixels and the compensation pixels repeatedly activate the hold phase or activate the maintenance phase may further be included. In addition to adjusting the duration of the immunity phase of the peripheral pixel drive waveform or the compensated refresh phase of the compensated pixel drive waveform, adjusting the duration of the hold phase of the peripheral pixel drive waveform or the compensated pixel drive waveform may further be included.
The user may also perform an input operation according to the degree of the intended screen display optimization, and the control module of the ink screen may adaptively adjust or configure one or more of the above parameters according to the operation information input by the user. For example, the longer the duration of application and/or the more frames the duration of application, the higher the picture quality and the less the ghost.
Of course, the user can also start or shut off the function of "the waveform of the peripheral pixel can enter the disturbance stage" by inputting an operation instruction. It is correspondingly also possible to configure whether the compensation function for the compensation pixel is activated.
The screen information may be configuration information (such as hardware configuration information and hardware configuration parameters) of the screen module, where the configuration information may be preset at the departure or the device is rewritten during upgrading, the screen module may set a corresponding data interface for the control module to read the screen information, the control module configures parameters such as voltage, period, duration of application, etc. of the corresponding anti-disturbance waveform according to the read screen information, in other words, each kind of screen module has a corresponding parameter configuration scheme, and the control module of the ink screen may perform automatic configuration according to the screen information of the screen module.
Referring to fig. 4, fig. 4 is a flowchart of a second embodiment of a driving method of an ink screen provided in the present application. In another embodiment of the present application, unlike the driving method provided in fig. 2, the step S10 includes:
s101, acquiring N display pictures which are newly displayed by the ink screen, wherein N is more than or equal to 2;
s102, obtaining the accumulated number of pixels with changed pixel color values of the N display pictures;
s103, judging whether the accumulated number is larger than a number threshold;
s104, if so, driving the ink screen to display a picture to be displayed by adopting a first driving mode in a first time period;
s105, if not, driving the ink screen to display a picture to be displayed by adopting a second driving mode in a second time period.
That is, in this embodiment, whether the accumulated number is greater than the number threshold is used as a selection condition of the first driving mode and the second driving mode, when the accumulated number is greater than the number threshold, the compensation refresh is indicated to reach an upper limit, and at this time, the first driving mode is adopted to drive the ink screen to display the picture to be displayed in the first period, where the accumulated number is dynamically calculated, and the accumulated number can be updated in real time according to the refresh condition of the display picture of the ink screen, so that the driving mode can be adjusted according to the refresh condition of the display picture of the ink screen, so that the driving mode more suitable for the ink screen can be selected, the driving mode has intelligent and accurate performance, and the ink screen has better display effect.
In an embodiment of the present application, the duration of the first period is obtained according to the accumulated number, specifically, the accumulated number may be multiplied or divided by a scaling factor to obtain the duration of the first period. The duration of the second time period is then obtained from the first time period and a duration coefficient, and in particular, the duration of the second time period may be obtained by multiplying or dividing the first time period by a duration coefficient. As can be seen from the above, in this embodiment, the durations of the first time period and the second time period are obtained according to the accumulated number in a dynamic manner, so that the durations of the first time period and the second time period have a higher correlation with the actual pixel situation, and therefore, the driving durations of the first driving mode and the second driving mode can be obtained by the ink screen more accurately, and the ink screen can have a better display effect.
In another embodiment of the present application, the duration of the first period of time and the duration of the second period of time are predetermined constants. The duration of the first time period and the duration of the second time period adopt a preset mode, so that the calculation process can be reduced, and the reaction speed is improved. Of course, the duration of the first time period and the duration of the second time period may also be dynamically set.
Referring to fig. 5, fig. 5 is a flowchart of step S102 of a driving method of an ink screen provided in the present application. Further, in an embodiment of the present application, the step S102 includes:
s1021, comparing two adjacent display pictures in the N display pictures from the first display picture to the N display picture to obtain a first number of pixels with different pixel color values of the N-1 pairs of adjacent two display pictures;
s1022, accumulating the first numbers of pixels with different pixel color values of the adjacent two display frames of the N-1 pairs to obtain accumulated numbers.
From the above, the specific process of obtaining the accumulated number of pixels with changed pixel color values of the N display frames in the present application is: and comparing two adjacent display pictures in the N display pictures from the first display picture to the N display picture in pairs, wherein the N display pictures are provided with N-1 pairs altogether, then obtaining the first number of pixels with different pixel color values in each pair of display pictures, and then accumulating the first numbers of pixels with different pixel color values in the N-1 pairs of adjacent two display pictures to obtain the accumulated number. The above embodiment is only one embodiment of the cumulative number of pixels in which the pixel color values of the N display screens are changed, and is not a limitation of the present application.
Still further, in an embodiment of the present application, the step of obtaining N display frames that are newly displayed on the ink screen includes:
and acquiring N display frames which are newly displayed in the video area of the ink screen.
Because the pixel color value of the display picture of the video area of the ink screen has larger change, and the pixel color value of the display picture of other areas of the ink screen has smaller change, the N display pictures which are newly displayed in the video area of the ink screen are used as the reference for calculating the accumulated number, so that the accuracy of the accumulated number can be ensured, the operation amount can be reduced, and the reaction speed of the ink screen can be improved.
Referring to fig. 6, fig. 6 is a flowchart of a third embodiment of a driving method of an ink screen provided in the present application. In another embodiment of the present application, unlike the driving method provided in fig. 2, the step S10 includes:
s111, acquiring N display pictures which are newly displayed by the ink screen, wherein N is more than or equal to 2;
s112, obtaining the accumulated number of pixels with changed pixel color values of the N display pictures;
s113, obtaining display time lengths of the N display pictures;
s114, obtaining the ratio of the accumulated quantity to the display duration;
S115, judging whether the ratio is larger than a quantity threshold value or not;
s116, if yes, driving the ink screen to display a picture to be displayed by adopting a first driving mode in a first time period;
s117, if not, driving the ink screen to display a picture to be displayed by adopting a second driving mode in a second time period.
That is, in this embodiment, whether the ratio is greater than the number threshold is used as a selection condition of the first driving mode and the second driving mode, when the ratio is greater than the number threshold, the compensation refresh is indicated to reach an upper limit, and at this time, the first driving mode is adopted to drive the ink screen to display the picture to be displayed in the first period, where the ratio is obtained by dynamic calculation, and the ratio can be updated in real time according to the refresh condition of the display picture of the ink screen, so that the driving mode can be adjusted according to the refresh condition of the display picture of the ink screen, so that the driving mode more suitable for the ink screen can be selected, and the driving mode has intelligent and accurate performance, so that the ink screen has a better display effect.
In an embodiment of the present application, the duration of the first period is obtained according to the accumulated number, specifically, the accumulated number may be multiplied or divided by a scaling factor to obtain the duration of the first period. The duration of the second time period is then obtained from the first time period and a duration coefficient, and in particular, the duration of the second time period may be obtained by multiplying or dividing the first time period by a duration coefficient. As can be seen from the above, in this embodiment, the durations of the first time period and the second time period are obtained according to the accumulated number in a dynamic manner, so that the durations of the first time period and the second time period have a higher correlation with the actual pixel situation, and therefore, the driving durations of the first driving mode and the second driving mode can be obtained by the ink screen more accurately, and the ink screen can have a better display effect.
In another embodiment of the present application, the duration of the first period of time is obtained according to the ratio, in particular, the duration of the first period of time may be obtained by multiplying or dividing the ratio by a scaling factor. The duration of the second time period is then obtained from the first time period and a duration coefficient, and in particular, the duration of the second time period may be obtained by multiplying or dividing the first time period by a duration coefficient. As can be seen from the above, in this embodiment, the durations of the first time period and the second time period are obtained according to the ratio in a dynamic manner, so that the durations of the first time period and the second time period have a higher correlation with the actual pixel situation, and therefore, the driving durations of the first driving mode and the second driving mode can be obtained by the ink screen more accurately, and the ink screen can have a better display effect.
In another embodiment of the present application, the duration of the first period of time and the duration of the second period of time are predetermined constants. The duration of the first time period and the duration of the second time period adopt a preset mode, so that the calculation process can be reduced, and the reaction speed is improved. Of course, the duration of the first time period and the duration of the second time period may also be dynamically set.
Referring to fig. 7, fig. 7 is a flowchart of step S112 of a driving method of an ink screen provided in the present application. Further, in an embodiment of the present application, the step S112 includes:
s1121, comparing two adjacent display pictures in the N display pictures from a first display picture to an N display picture to obtain a first number of pixels with different pixel color values of the two adjacent display pictures of N-1 pairs;
s1122, the first numbers of pixels with different pixel color values of the adjacent two display frames of the N-1 pairs are accumulated to obtain accumulated numbers.
From the above, the specific process of obtaining the accumulated number of pixels with changed pixel color values of the N display frames in the present application is: and comparing two adjacent display pictures in the N display pictures from the first display picture to the N display picture in pairs, wherein the N display pictures are provided with N-1 pairs altogether, then obtaining the first number of pixels with different pixel color values in each pair of display pictures, and then accumulating the first numbers of pixels with different pixel color values in the N-1 pairs of adjacent two display pictures to obtain the accumulated number. The above embodiment is only one embodiment of the cumulative number of pixels in which the pixel color values of the N display screens are changed, and is not a limitation of the present application.
Still further, in an embodiment of the present application, the step of obtaining N display frames that are newly displayed on the ink screen includes:
and acquiring N display frames which are newly displayed in the video area of the ink screen.
Because the pixel color value of the display picture of the video area of the ink screen is changed greatly, the video area of the ink screen is used for displaying the video picture, and the pixel color value of the display picture of other areas of the ink screen is changed less, N display pictures which are newly displayed in the video area of the ink screen are used as the reference for calculating the accumulated number, so that the accuracy of the accumulated number can be ensured, the operation amount can be reduced, and the reaction speed of the ink screen can be improved.
Referring to fig. 8, fig. 8 is a flowchart of a fourth embodiment of a driving method of an ink screen provided in the present application. Further, in the present embodiment, unlike the driving method provided in fig. 1, the driving method includes, before the step S10:
s02, acquiring application information of an application program operated by the ink screen when a picture to be displayed is displayed;
s04, judging whether the application program belongs to a preset application or not according to the application information, and executing the next step if the application program belongs to the preset application. And if not, executing the next step and adopting a first driving mode to drive the ink screen to display the picture to be displayed.
That is, in the present application, when the condition that the application program is a preset application is satisfied, the ink screen needs to be alternately driven by the first driving mode and the second driving mode to display the image to be displayed; and when the application program is not the preset application, the first driving mode and the second driving mode are not adopted to alternately drive the ink screen to display the picture to be displayed, and the common driving mode is adopted to drive the ink screen to display the picture to be displayed.
The application information includes an application package, a code and configuration information of the application program, that is, whether the application program belongs to a preset application can be judged through one of the application package, the code and the configuration information of the application program. In addition, the configuration information of the application program may further include parameters of a first time period and a second time period, that is, when the application program is a preset application, the configuration information of the application program carries the parameters of the first time period and the second time period, so that each application program has the parameters of the first time period and the second time period, and the duration of the first time period and the duration of the second time period are preset constants.
Still further, the preset application includes a video playing application program and an application program containing a dynamic display screen. That is, only when the application program running when the ink screen displays the picture to be displayed includes the dynamic display picture, the first driving mode and the second driving mode are needed to alternately drive the ink screen to display the picture to be displayed, and the phenomenon that the application program including the dynamic display picture generates black gray scale precipitation when displaying the picture to be displayed is serious, so that the efficiency of solving the technical problem of black gray scale precipitation is improved.
Fig. 9 is a schematic structural diagram of a driving device of an ink screen provided in the present application. The driving device of the ink screen is used for setting the electronic equipment of the ink screen. As shown in fig. 9, the driving apparatus includes a driving module 10.
The driving module 10 is configured to alternately drive the ink screen to display a picture to be displayed in a first driving mode and a second driving mode;
the first driving mode includes:
acquiring a first driving waveform of a picture to be displayed, and driving the ink screen to display the picture to be displayed by using the first driving waveform;
the second driving mode includes:
And acquiring a compensation driving waveform of the picture to be displayed, and driving the ink screen to display the picture to be displayed by using the compensation driving waveform.
On the basis of the foregoing embodiment, the method for alternately driving the ink screen to display the image to be displayed by using the first driving mode and the second driving mode includes:
and periodically and alternately driving the ink screen to display a picture to be displayed by adopting the first driving mode and the second driving mode.
On the basis of the foregoing embodiment, the method for alternately driving the ink screen to display the image to be displayed by using the first driving mode and the second driving mode includes:
driving the ink screen to display a picture to be displayed by adopting a first driving mode in a first time period;
and driving the ink screen to display a picture to be displayed by adopting a second driving mode in a second time period.
On the basis of the foregoing embodiment, the method for alternately driving the ink screen to display the image to be displayed by using the first driving mode and the second driving mode includes:
acquiring N display pictures which are newly displayed by the ink screen, wherein N is more than or equal to 2;
obtaining the accumulated number of pixels with changed pixel color values of the N display pictures;
Judging whether the accumulated number is larger than a number threshold;
if yes, driving the ink screen to display a picture to be displayed by adopting a first driving mode in a first time period;
and if not, driving the ink screen to display a picture to be displayed by adopting a second driving mode in a second time period.
On the basis of the foregoing embodiment, the method for alternately driving the ink screen to display the image to be displayed by using the first driving mode and the second driving mode includes:
acquiring N display pictures which are newly displayed by the ink screen, wherein N is more than or equal to 2;
obtaining the accumulated number of pixels with changed pixel color values of the N display pictures;
obtaining the display time length of the N display pictures;
obtaining the ratio of the accumulated number to the display duration;
judging whether the ratio is larger than a quantity threshold value or not;
if yes, driving the ink screen to display a picture to be displayed by adopting a first driving mode in a first time period;
and if not, driving the ink screen to display a picture to be displayed by adopting a second driving mode in a second time period.
On the basis of the above embodiment, the duration of the first period of time is obtained from the accumulated number.
On the basis of the above embodiment, the duration of the first period of time is obtained from the ratio.
On the basis of the embodiment, the duration of the second time period is obtained according to the first time period and the duration coefficient.
On the basis of the foregoing embodiment, the method for obtaining the cumulative number of pixels whose pixel color values of the N display frames have changed includes:
comparing two adjacent display pictures in the N display pictures from the first display picture to the N display picture to obtain a first number of pixels with different pixel color values of N-1 pairs of adjacent two display pictures;
and accumulating the first numbers of pixels with different pixel color values of the adjacent two display frames of the N-1 pairs to obtain accumulated numbers.
On the basis of the above embodiment, the duration of the first period and the duration of the second period are constants set in advance.
On the basis of the above embodiment, the first period of time is adjacent to the second period of time.
Based on the above embodiment, the method for obtaining N display frames that are newly displayed on the ink screen includes:
and acquiring N display frames which are newly displayed in the video area of the ink screen.
On the basis of the above embodiment, the method for obtaining the compensation driving waveform of the image to be displayed and driving the ink screen to display the image to be displayed by using the compensation driving waveform includes:
comparing the image information of the current display picture with the image information of the picture to be displayed to obtain a first type pixel and a second type pixel of the picture to be displayed, wherein the first type pixel comprises pixels with different pixel color values, which are displayed on the same pixel point of the ink screen, of the picture to be displayed and the current display picture, and the second type pixel comprises pixels with the same pixel color value, which are displayed on the same pixel point of the ink screen, of the picture to be displayed and the current display picture;
confirming a first type pixel driving waveform corresponding to the first type pixel and a second type pixel driving waveform corresponding to the second type pixel according to a current refreshing mode of the ink screen, wherein the compensation driving waveform comprises the first type pixel driving waveform and the second type pixel driving waveform;
and applying the first-type pixel driving waveform to the pixel points corresponding to the first-type pixels of the ink screen, and applying the second-type pixel driving waveform to the pixel points corresponding to the second-type pixels of the ink screen so as to enable the area corresponding to the second-type pixels of the ink screen to keep the original display effect.
On the basis of the above embodiment, the second type pixels include peripheral pixels and compensation pixels, the peripheral pixels are pixels in the second type pixels, the minimum distance between the pixels and the first type pixels is within a preset range, and the compensation pixels are the rest of pixels in the second type pixels except the peripheral pixels;
correspondingly, the second type of pixel driving waveforms include a peripheral pixel driving waveform and a compensation pixel driving waveform, the peripheral pixel driving waveform is applied to the pixel points corresponding to the peripheral pixels of the ink screen so that the original display effect of the area corresponding to the peripheral pixels of the ink screen is maintained, and the compensation pixel driving waveform is applied to the pixel points corresponding to the compensation pixels of the ink screen so that the display compensation is performed on the area corresponding to the compensation pixels of the ink screen.
The driving device provided by the application is contained in the electronic equipment, can be used for executing the corresponding driving method provided by the embodiment, and has corresponding functions and beneficial effects.
It should be noted that, in the embodiment of the driving apparatus, each unit and module included are only divided according to the functional logic, but not limited to the above-mentioned division, so long as the corresponding functions can be implemented; in addition, the specific names of the functional units are also only for distinguishing from each other, and are not used to limit the protection scope of the present invention.
Fig. 10 is a schematic structural diagram of an electronic device provided in the present application. As shown in fig. 10, the electronic device comprises a processor 310 and a memory 320, and may further comprise an input means 330, an output means 340 and a communication means 350; the number of processors 310 in the electronic device may be one or more, one processor 310 being taken as an example in fig. 10; the processor 310, memory 320, input device 330, output device 340, and communication device 350 in the electronic device may be connected by a bus or other means, for example by a bus connection in fig. 10.
The memory 320 is a computer readable storage medium, and may be used to store a software program, a computer executable program, and a module, such as program instructions/modules corresponding to the driving method of the ink screen in the present application. The processor 310 executes various functional applications of the electronic device and data processing, that is, implements the above-described ink screen driving method, by running software programs, instructions, and modules stored in the memory 320.
Memory 320 may include primarily a program storage area and a data storage area, wherein the program storage area may store an operating system, at least one application program required for functionality; the storage data area may store data created according to the use of the electronic device, etc. In addition, memory 320 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 320 may further include memory located remotely from processor 310, 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 330 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. The output device 340 may include a display module such as a display screen, specifically an ink screen in this embodiment.
The driving device of the electronic equipment comprising the ink screen can be used for executing the driving method of any ink screen, and has corresponding functions and beneficial effects.
The present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, is configured to perform related operations in the driving method of an ink screen provided in any embodiment of the present application, and has corresponding functions and advantageous 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 (21)

1. A driving method of an ink screen, the driving method comprising:
alternately driving the ink screen to display a picture to be displayed by adopting a first driving mode and a second driving mode;
the first driving mode includes:
acquiring a first driving waveform of a picture to be displayed, and driving the ink screen to display the picture to be displayed by using the first driving waveform;
the second driving mode includes:
and acquiring a compensation driving waveform of the picture to be displayed, and driving the ink screen to display the picture to be displayed by using the compensation driving waveform.
2. The driving method according to claim 1, wherein the step of alternately driving the ink screen to display a picture to be displayed in the first driving mode and the second driving mode includes:
and periodically and alternately driving the ink screen to display a picture to be displayed by adopting the first driving mode and the second driving mode.
3. The driving method according to claim 1, wherein the step of alternately driving the ink screen to display a picture to be displayed in the first driving mode and the second driving mode includes:
driving the ink screen to display a picture to be displayed by adopting a first driving mode in a first time period;
And driving the ink screen to display a picture to be displayed by adopting a second driving mode in a second time period.
4. The driving method according to claim 1, wherein the step of alternately driving the ink screen to display a picture to be displayed in the first driving mode and the second driving mode includes:
acquiring N display pictures which are newly displayed by the ink screen, wherein N is more than or equal to 2;
obtaining the accumulated number of pixels with changed pixel color values of the N display pictures;
judging whether the accumulated number is larger than a number threshold;
if yes, driving the ink screen to display a picture to be displayed by adopting a first driving mode in a first time period;
and if not, driving the ink screen to display a picture to be displayed by adopting a second driving mode in a second time period.
5. The driving method according to claim 1, wherein the step of alternately driving the ink screen to display a picture to be displayed in the first driving mode and the second driving mode includes:
acquiring N display pictures which are newly displayed by the ink screen, wherein N is more than or equal to 2;
obtaining the accumulated number of pixels with changed pixel color values of the N display pictures;
Obtaining the display time length of the N display pictures;
obtaining the ratio of the accumulated number to the display duration;
judging whether the ratio is larger than a quantity threshold value or not;
if yes, driving the ink screen to display a picture to be displayed by adopting a first driving mode in a first time period;
and if not, driving the ink screen to display a picture to be displayed by adopting a second driving mode in a second time period.
6. The driving method according to claim 4 or 5, characterized in that the duration of the first period of time is obtained from the accumulated number.
7. The driving method according to claim 5, wherein the duration of the first period of time is obtained from the ratio.
8. The driving method according to claim 6 or 7, characterized in that the duration of the second period is obtained from the first period and a duration coefficient.
9. The driving method according to claim 4 or 5, wherein the step of obtaining the cumulative number of pixels whose pixel color values of the N display screens have been changed includes:
comparing two adjacent display pictures in the N display pictures from the first display picture to the N display picture to obtain a first number of pixels with different pixel color values of N-1 pairs of adjacent two display pictures;
And accumulating the first numbers of pixels with different pixel color values of the adjacent two display frames of the N-1 pairs to obtain accumulated numbers.
10. The driving method according to claim 3 or 4 or 5, wherein the duration of the first period and the duration of the second period are predetermined constants.
11. The driving method according to claim 10, wherein the first period of time is adjacent to the second period of time.
12. The driving method according to claim 4 or 5, wherein,
the step of obtaining the N display frames which are newly displayed by the ink screen comprises the following steps:
and acquiring N display frames which are newly displayed in the video area of the ink screen.
13. The driving method according to claim 1, wherein before the step of alternately driving the ink screen display screen to be displayed in the first driving mode and the second driving mode, the driving method comprises:
acquiring application information of an application program operated by the ink screen when a picture to be displayed is displayed;
judging whether the application program belongs to a preset application or not according to the application information, and executing the next step if the application program belongs to the preset application.
14. The driving method according to claim 1, wherein the preset application includes a video playing application program and an application program containing a dynamic display screen.
15. The driving method according to claim 1, wherein the step of obtaining a compensation driving waveform of the picture to be displayed, and driving the ink screen to display the picture to be displayed using the compensation driving waveform comprises:
comparing the image information of the current display picture with the image information of the picture to be displayed to obtain a first type pixel and a second type pixel of the picture to be displayed, wherein the first type pixel comprises pixels with different pixel color values, which are displayed on the same pixel point of the ink screen, of the picture to be displayed and the current display picture, and the second type pixel comprises pixels with the same pixel color value, which are displayed on the same pixel point of the ink screen, of the picture to be displayed and the current display picture;
confirming a first type pixel driving waveform corresponding to the first type pixel and a second type pixel driving waveform corresponding to the second type pixel according to a current refreshing mode of the ink screen, wherein the compensation driving waveform comprises the first type pixel driving waveform and the second type pixel driving waveform;
and applying the first-type pixel driving waveform to the pixel points corresponding to the first-type pixels of the ink screen, and applying the second-type pixel driving waveform to the pixel points corresponding to the second-type pixels of the ink screen so as to enable the area corresponding to the second-type pixels of the ink screen to keep the original display effect.
16. The driving method according to claim 15, wherein the second type of pixels include peripheral pixels and compensation pixels, the peripheral pixels being pixels in the second type of pixels having a minimum distance from the first type of pixels within a preset range, the compensation pixels being the remaining pixels in the second type of pixels except the peripheral pixels;
correspondingly, the second type of pixel driving waveforms include a peripheral pixel driving waveform and a compensation pixel driving waveform, the peripheral pixel driving waveform is applied to the pixel points corresponding to the peripheral pixels of the ink screen so that the original display effect of the area corresponding to the peripheral pixels of the ink screen is maintained, and the compensation pixel driving waveform is applied to the pixel points corresponding to the compensation pixels of the ink screen so that the display compensation is performed on the area corresponding to the compensation pixels of the ink screen.
17. The driving method of claim 16, wherein the peripheral pixel drive waveform comprises an anti-disturbance phase and a second hold phase.
18. The driving method of claim 16, wherein the compensation pixel driving waveform comprises a compensation refresh phase and a third hold phase.
19. A driving device of an ink screen, comprising:
the driving module is used for alternately driving the ink screen to display a picture to be displayed by adopting a first driving mode and a second driving mode;
the first driving mode includes:
acquiring a first driving waveform of a picture to be displayed, and driving the ink screen to display the picture to be displayed by using the first driving waveform;
the second driving mode includes:
and acquiring a compensation driving waveform of the picture to be displayed, and driving the ink screen to display the picture to be displayed by using the compensation driving waveform.
20. An electronic device, comprising:
an ink screen;
one or more processors;
a memory for storing one or more computer programs;
when executed by the one or more processors, causes the electronic device to implement the method of driving an ink screen as recited in any one of claims 1-18.
21. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements a method of driving an ink screen according to any one of claims 1-18.
CN202311499282.XA 2023-11-10 2023-11-10 Ink screen driving method and device, electronic equipment and storage medium Pending CN117456936A (en)

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Publication number Priority date Publication date Assignee Title
CN102194415A (en) * 2010-03-04 2011-09-21 精工爱普生株式会社 Driving method of electrophoretic display device, and controller
CN113920952A (en) * 2021-10-20 2022-01-11 京东方科技集团股份有限公司 Electronic paper debugging method, electronic paper, debugging system and equipment
CN115346496A (en) * 2022-08-16 2022-11-15 广州文石信息科技有限公司 Screen display method, device and equipment based on frame rate and storage medium
CN115359762A (en) * 2022-08-16 2022-11-18 广州文石信息科技有限公司 Ink screen display control method and device based on drive compensation
CN115831068A (en) * 2023-01-05 2023-03-21 惠科股份有限公司 Electronic ink screen and driving method thereof
CN218957373U (en) * 2022-12-14 2023-05-02 江西兴泰科技股份有限公司 Gray scale compensation system for improving gray scale of electronic paper

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102194415A (en) * 2010-03-04 2011-09-21 精工爱普生株式会社 Driving method of electrophoretic display device, and controller
CN113920952A (en) * 2021-10-20 2022-01-11 京东方科技集团股份有限公司 Electronic paper debugging method, electronic paper, debugging system and equipment
CN115346496A (en) * 2022-08-16 2022-11-15 广州文石信息科技有限公司 Screen display method, device and equipment based on frame rate and storage medium
CN115359762A (en) * 2022-08-16 2022-11-18 广州文石信息科技有限公司 Ink screen display control method and device based on drive compensation
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