CN116364022A - Electronic paper display screen driving method and system and electronic equipment - Google Patents
Electronic paper display screen driving method and system and electronic equipment Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control 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
- G09G3/34—Control 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
- G09G3/3433—Control 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
- G09G3/344—Control 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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
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Abstract
The application relates to a driving method and system for an electronic paper display screen and electronic equipment. The method comprises the following steps: dividing a driving period rule of the display screen into a first driving period and a second driving period which are continuous; and driving the display screen by adopting an alternating voltage signal so as to drive one display particle to move in the first driving period and drive the other display particle to move in the opposite direction in the second driving period. According to the scheme, the display particles with different charge attributes can be driven in a time-sharing mode, the driving force for the display particles is improved, the two display particles can be accurately moved in place, the occurrence of screen afterimages is reduced, the overall refreshing frequency is further reduced, and the endurance time of a product is effectively improved.
Description
Technical Field
The application relates to the technical field of display equipment, in particular to a driving method and system of an electronic paper display screen and electronic equipment.
Background
The electronic paper display screen is often driven by global refreshing and local refreshing, wherein the local refreshing driving mode does not enable all display particles to be in the same initial state and then display images, and the local refreshing is easy to generate a cross effect (cross talk). The cross effect refers to that the data to be displayed between adjacent points of the display screen affects each other, so that the displayed picture has incorrect condition.
In the related art, in order to obtain a better experience effect, a global refreshing mode and a local refreshing mode are generally adopted to drive the electronic paper display screen, and in the application process, the phenomenon of cross effect needs to be eliminated by utilizing the global refreshing mode.
However, in the above manner, global refreshing needs to be frequently performed, so that more electric energy is required to be consumed by the electronic paper display screen, the endurance time is reduced, and the use experience of the product is affected.
Disclosure of Invention
In order to solve or partially solve the problems existing in the related art, the application provides a method, a system and electronic equipment for driving an electronic paper display screen, which can perform time-sharing driving on two display particles with different charge attributes, improve the driving force on the display particles, enable the two display particles to move accurately in place, reduce the occurrence of screen ghost, further reduce the global refreshing frequency, and effectively improve the endurance time of products.
A first aspect of the present application provides a method for driving an electronic paper display screen, where a display panel of the display screen has two kinds of display particles with different charge properties, the method including:
dividing a driving period rule of the display screen into a first driving period and a second driving period which are continuous;
and driving the display screen by adopting an alternating voltage signal so as to drive one display particle to move in the first driving period and drive the other display particle to move in the opposite direction in the second driving period.
In some embodiments, the ac voltage signal is a rectangular pulse signal.
In some embodiments, the ac voltage signal comprises:
a first ac driving signal applied to the common electrode and a second ac driving signal applied to the pixel electrode;
the alternating voltage signal forms a voltage difference with the first alternating driving signal through the second alternating driving signal so as to enable display particles to move.
In some implementations, the first and second drive periods each include: a compensation area for controlling the display effect of the pixel points;
the level pulse width of the first alternating current driving signal and the level pulse width of the second alternating current driving signal in the compensation area in the same driving period are the same or different, so that the pixel points are controlled to achieve different display effects.
In some implementations, the first and second drive periods each further comprise: a balance area for controlling the color displayed by the pixel points;
the period time of the balance area is longer than that of the compensation area.
In some implementations, the dividing the driving period of the display screen into a first driving period and a second driving period includes:
dividing a driving period rule of the display screen into a first driving period, a second driving period and a third driving period which are continuous;
the driving of the display screen with an alternating voltage signal such that one of the display particles is driven to move in the first driving period and the other display particle is driven to move in the opposite direction in the second driving period comprises:
and driving the display screen by adopting an alternating voltage signal so as to drive one display particle to move in the first driving period, drive the other display particle to move in the opposite direction in the second driving period and drive any display particle to move for a short time in the third driving period.
In some embodiments, the third driving period includes: at least two consecutive compensation zones.
A second aspect of the present application provides an electronic paper display driving system, a display panel of the display having two display particles with different charge properties, the system comprising:
the dividing device is used for dividing the driving period rule of the display screen into a first driving period and a second driving period which are continuous;
and the driving device is used for driving the display screen by adopting an alternating voltage signal so as to drive one display particle to move in the first driving period and drive the other display particle to move in the opposite direction in the second driving period.
A third aspect of the present application provides an electronic device, comprising:
a processor; and
a memory having executable code stored thereon which, when executed by the processor, causes the processor to perform the method as described above.
A fourth aspect of the present application provides a computer readable storage medium having stored thereon executable code which, when executed by a processor of an electronic device, causes the processor to perform a method as described above.
The technical scheme that this application provided can include following beneficial effect:
according to the technical scheme, the display screen is driven through the alternating-current voltage signal, the voltage for pixel driving is improved, two display particles with different charge attributes in the microcapsule of the electronic paper display screen are accurately moved in place, the consistency of displacement amounts of the two display particles in each area is improved, the two display particles are driven in a time-sharing mode, the two display particles are prevented from being charged simultaneously, the color deviation is caused when the two display particles in different areas are not moved in place due to different voltages, the display effect of a product is improved, the occurrence of screen ghost is reduced, the overall refreshing frequency is further reduced, and the duration of the product is effectively improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
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The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
FIG. 1 is a schematic diagram of a driving waveform of a DC driving method according to an embodiment of the present application;
fig. 2 is a schematic flow chart of a driving method of an electronic paper display screen according to an embodiment of the present application;
fig. 3 is a schematic diagram of driving waveforms of a driving method of an electronic paper display screen according to an embodiment of the present disclosure;
FIG. 4 is another schematic flow chart of a driving method of an electronic paper display screen according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of another driving waveform of the driving method of the electronic paper display screen according to the embodiment of the present application;
FIG. 6 is a schematic diagram of a driving system of an electronic paper display screen according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first message may also be referred to as a second message, and similarly, a second message may also be referred to as a first message, without departing from the scope of the present application. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the related art, the electronic paper display screen is driven to be used by adopting a global refreshing mode and a local refreshing mode, screen afterimages are removed, and the electronic paper display screen needs to consume more electric energy due to frequent global refreshing, so that the endurance time is reduced, and the use experience of products is affected.
In view of the above problems, the embodiment of the application provides a driving method for an electronic paper display screen, which can perform time-sharing driving on display particles with two different charge attributes, improve driving force on the display particles, enable the two display particles to accurately move in place, reduce occurrence of screen afterimages, further reduce global refreshing frequency, and effectively improve endurance time of products.
The following describes the technical scheme of the embodiments of the present application in detail with reference to the accompanying drawings.
It should be understood that when driving an electronic paper display screen, a driving waveform of a driving signal generally applied to a common electrode (VCOM electrode) is referred to as VCOM driving waveform, and VCOM voltage represents a voltage applied to the common electrode; the drive waveform of the drive signal applied to the pixel electrode (drive electrode) has four types of WW drive waveform, KW drive waveform, WK drive waveform, and KK drive waveform.
Wherein, WW driving waveform represents driving waveform from displaying white to displaying white of a pixel; the KW driving waveform represents a driving waveform from displaying black to displaying white for one pixel; WK driving waveforms represent driving waveforms of one pixel from displaying white to displaying black; the KK driving waveform represents a driving waveform from display of black to display of black for one pixel.
The high-level voltage applied to the pixel electrode is denoted by VSH, and the low-level voltage applied to the pixel electrode is denoted by VSL.
In the related art, a direct current voltage is often used to drive an electronic paper display screen, specifically, in a driving period, the voltage polarity on a common electrode (VCOM electrode) is kept unchanged, and two kinds of display particles with opposite polarities are driven to move by changing the voltage polarity loaded on a pixel electrode.
Fig. 1 is a schematic diagram of driving waveforms of a dc driving method according to an embodiment of the present application.
Referring to fig. 1, taking a driving process of an electronic paper display screen displaying two colors of black and white as an example, a voltage value applied to a microcapsule of the electronic paper display screen in a direct-current voltage driving manner is VSL-Vcom or VSH-Vcom or 0V-Vcom, wherein VSL-Vcom is negative voltage and is generally used for driving negatively charged white particles to move so that a pixel unit corresponding to the display screen displays white, VSH-Vcom is positive voltage and is generally used for driving positively charged black particles to move so that a pixel unit corresponding to the display screen displays black, and 0V-Vcom voltage is relatively low and is generally used for keeping an original display state of the pixel unit.
Fig. 2 is a schematic flow chart of a driving method of an electronic paper display screen according to an embodiment of the present application. The display panel of the display screen is provided with two display particles with different charge properties, wherein the colors of the two display particles can be black and white respectively, the black particles are positively charged, and the white particles are negatively charged. Of course, the two display particles may also be a combination of other colors.
Referring to fig. 2, the electronic paper display screen driving method of the present application includes:
s110, dividing the driving period rule of the display screen into a first driving period and a second driving period which are continuous.
It will be appreciated that driving a pixel point (pixel element) of a display screen once is a single driving cycle of the display screen. Dividing the driving period of the display screen into a first driving period and a second driving period which are continuous, namely, in the driving process, driving the display screen by the first driving period and then driving the display screen by the second driving period.
The first driving period and the second driving period may be equal two time periods. It is understood that the period duration of the first driving period is the same as that of the second driving period.
And S120, driving the display screen by adopting an alternating voltage signal so as to drive one display particle to move in a first driving period and drive the other display particle to move in the opposite direction in a second driving period.
It will be appreciated that in the first drive period and the second drive period, only one type of display particles is driven per period. For example, in the first driving period, only positively charged black particles are driven, and in the second driving period, only negatively charged white particles are driven. For another example, in the first driving period, only negatively charged white particles are driven, and in the second driving period, only positively charged black particles are driven.
By dividing the first driving period and the second driving period to perform time-sharing driving on two display particles with opposite polarities, the change of the voltage of a data line for driving the pixel point can be effectively reduced, the voltage for driving the pixel is improved, and the two display particles with opposite polarities can be accurately moved in place.
The alternating voltage signal can be a rectangular pulse signal, so that the control process of driving the pixel unit by the alternating voltage signal is facilitated. Wherein the rectangular pulse signal may be a high level voltage or a low level voltage, wherein the high level voltage may be represented by VSH and the low level voltage is represented by VSL.
Wherein the alternating voltage signal comprises: the first AC driving signal is applied to the common electrode, and the second AC driving signal is applied to the pixel electrode. It can be understood that when the pixel unit is driven, the first ac driving signal is input to the common electrode of the pixel unit, and the second ac driving signal is input to the pixel electrode of the pixel unit, so that a voltage difference is formed between the second ac driving signal and the first ac driving signal, and the display particles in the pixel unit are moved.
Fig. 3 is a schematic diagram of driving waveforms of a driving method of an electronic paper display screen according to an embodiment of the present application.
Referring to fig. 3, in the present application, the first ac driving signal may be a VCOM driving waveform, the second ac driving signal may be one of a WW driving waveform, a KW driving waveform, a WK driving waveform, and a KK driving waveform, and voltages applied to the electrodes by the VCOM driving waveform, the WW driving waveform, the KW driving waveform, the WK driving waveform, and the KK driving waveform may be a high level voltage VSH or a low level voltage VSL.
The working principle of the method of the present application will be described below taking the driving waveforms shown in fig. 3 as an example. The driving waveforms shown in fig. 3 correspond to the first driving period for driving the white particles to move and the second driving period for driving the black particles to move.
When the corresponding pixel units need to be controlled from white display to white display, the WW driving waveform is adopted to drive the pixel electrodes. In the first driving period, both the VCOM driving waveform and the WW driving waveform are high-level VSH, the voltage difference between the WW driving waveform and the VCOM driving waveform is kept at VSH-VSH, namely, the voltage difference is 0V, and the white particles keep the current position from moving; in the second driving period, both the VCOM driving waveform and the WW driving waveform jump to the low level voltage VSL, the voltage difference between the WW driving waveform and the VCOM driving waveform is kept at VSL-VSL, that is, the voltage difference is 0V, and the black particles keep the current position from moving.
When the corresponding pixel units need to be controlled from black display to white display, the KW driving waveform is adopted to drive the pixel electrodes. In the first driving period, the VCOM driving waveform is a high level VSH, the KW driving waveform is a low level VSL, the voltage difference between the KW driving waveform and the VCOM driving waveform is VSL-VSH, and the VCOM driving waveform is a negative voltage, and white particles move towards a common electrode (VCOM electrode) to realize white display; in the second driving period, the VCOM driving waveform jumps to a low level voltage VSL, the KW driving waveform keeps the low level VSL, the voltage difference between the KW driving waveform and the VCOM driving waveform is kept at VSL-VSL, namely, the voltage difference is 0V, and the black particles keep the current position from moving.
When the corresponding pixel unit needs to be controlled from displaying white to displaying black, the WK driving waveform is adopted to drive the pixel electrode. Wherein, the voltage difference between the VCOM driving waveform and the WK driving waveform is kept as VSH-VSH, namely the voltage difference is 0V, and the white particles keep the current position not to move; the VCOM driving waveform jumps to a low level voltage VSL, the WK driving waveform keeps a high level VSH, the voltage difference between the WK driving waveform and the VCOM driving waveform is VSH-VSL, the VCOM driving waveform is a positive voltage, and the black particles move towards the common electrode (VCOM electrode) to realize black display.
When the corresponding pixel unit needs to be controlled from black display to black display, the KK driving waveform is adopted to drive the pixel electrode. In the first driving period, the VCOM driving waveform and the KK driving waveform are both high-level VSH, the voltage difference between the VCOM driving waveform and the KK driving waveform is kept at VSH-VSH, namely the voltage difference is 0V, and the white particles keep the current position from moving; in the second driving period, both the VCOM driving waveform and the KK driving waveform jump to a low level voltage VSL, and a voltage difference between the VCOM driving waveform and the KK driving waveform is kept to be VSL-VSL, that is, a voltage difference is 0V, and the black particles keep the current position from moving.
Note that the polarities of the VCOM driving waveform, WW driving waveform, KK driving waveform may also be opposite to those shown in fig. 3. When polarities of the VCOM driving waveform, WW driving waveform, KK driving waveform are opposite to those shown in fig. 3, the driving method of the present application operates similarly to the foregoing.
Through the working principle, the driving method of the electronic paper display screen is easy to know, and the alternating current driving mode is adopted to drive display particles in the display screen.
It should be noted that, in the present application, two kinds of display particles with different charge properties may also be one display particle with charge and the other display particle with no charge. For example, white particles are negatively charged and black particles are uncharged.
Taking the example that the white particles are negatively charged and the black particles are not charged, the driving waveforms adopted in the driving process of the display particles with the two different charge properties in the driving method of the application are the same as the principle process described in the previous embodiment, wherein in the driving process of the black particles, the black particles cannot move under the action of a voltage difference due to the fact that the black particles are not charged, but the white particles are negatively charged, so that when the voltage difference between the pixel electrode and the common electrode is positive voltage, the white particles move towards the pixel electrode, and the black particles float to one side between the common electrode, so that black display is realized. For applications of the driving method of the present application to different charge distribution situations of other display particles, refer to the foregoing, and no further description is given here.
It should be noted that the first driving period and the second driving period may also be two unequal time periods, for example, the time period of the first driving period is longer than the time period of the second driving period. Especially, when the first driving period is used for driving the white particles to move and the second driving period is used for driving the black particles to move, the time period of the first driving period is longer than the time period of the second driving period when the white particles are negatively charged and the black particles are uncharged in an application scene, so that the white particles can have sufficient driving action time, and the display effect of the pixel unit is effectively improved.
In this embodiment, the technical scheme of this application drives the display screen through alternating voltage signal, be favorable to improving the voltage that is used for pixel drive, make the inside two kinds of display particles that charge attribute is different of electronic paper display screen microcapsule accurately obtain moving in place, promote the uniformity of the displacement volume of the different display particles of each regional two kinds of charge attribute, carry out the timesharing drive to the different display particles of two kinds of charge attribute, avoid charging simultaneously to two kinds of display particles, reduce the voltage difference that two kinds of display particles received in different regions and lead to removing not to appear the colour deviation in place, promote the display effect of product, reduce the screen ghost appearance, and then reduce overall situation refresh frequency, effectively improve the duration of product.
Fig. 4 is another flow chart of a driving method of an electronic paper display screen according to an embodiment of the present application. Fig. 5 is another driving waveform schematic diagram of the driving method of the electronic paper display screen according to the embodiment of the application. The display panel of the display screen is provided with two display particles with different charge properties, wherein the colors of the two display particles can be black and white respectively, the black particles are positively charged, and the white particles are negatively charged.
Referring to fig. 4 and 5, the driving method of the electronic paper display screen of the present application includes:
s210, dividing the driving period of the display screen into a first driving period, a second driving period and a third driving period which are continuous.
Dividing the driving period of the display screen into a first driving period, a second driving period and a third driving period which are continuous, namely, in the driving process, driving the display screen by the first driving period, then driving the display screen by the second driving period, and finally driving the display screen by the third driving period.
S220, driving the display screen by adopting an alternating voltage signal so as to drive one display particle to move in a first driving period, drive the other display particle to move in the opposite direction in a second driving period and drive any display particle to move for a short time in a third driving period.
As shown in fig. 5, where N, M represents the number of frames that the driving waveform lasts, where 1 frame represents the time required to scan the display screen once.
Wherein, in the first driving period and the second driving period, the method comprises the following steps: and the compensation area is used for controlling the display effect of the pixel points. It can be understood that the period time of the balance area is longer than the period time of the compensation area, that is, as shown in fig. 2, N is greater than or equal to M, that is, the duration of the driving signal in the balance area is longer than the duration of the driving signal in the compensation area, so that the color displayed by the pixel can be controlled by using the waveform of the balance area, and the color displayed by the pixel can be compensated and modified by using the waveform of the compensation area. The number of corresponding frames of N and M may be set according to practical applications of the product, for example, N may be 5, and M may be 1.
Wherein the third drive period comprises at least two consecutive compensation zones. For example, the third driving period may include two consecutive compensation regions, wherein the number of frames of the two compensation regions is n and m, respectively. It should be appreciated that N.gtoreq.M, N, M.
The level pulse width in the compensation area in the same driving period is the same or different through the first alternating current driving signal and the second alternating current driving signal, so that different display effects are realized by the control pixel points.
It can be understood that the pixel unit is driven by the first driving period and the second driving period, wherein the color display of the pixel unit is more stable by using time-sharing driving, and then the level pulse width of the driving waveform in the compensation area is changed by the third driving period, so that a short positive voltage or a short negative voltage is provided, and the display effect of the pixel unit is improved.
The working principle of the method of the present application for adjusting the display effect using the compensation region will be described below by taking the driving waveform shown in fig. 5 as an example. The driving waveforms shown in fig. 5 correspond to the first driving period for driving the white particles to move and the second driving period for driving the black particles to move.
When the corresponding pixel unit needs to be controlled from displaying white to displaying white, the WW driving waveform is required to be adopted to drive the pixel electrode, wherein in the first driving period, the high-level pulse width of the WW driving waveform in the compensation area is smaller than the high-level pulse width of the VCOM driving waveform, or the WW driving waveform is in advance hopped from the high-level voltage VSH to the low-level VSL relative to the VCOM driving waveform in the compensation area, so that a short-time negative voltage difference is formed between the WW driving waveform and the VCOM driving waveform in the period corresponding to the compensation area, and the white particles are driven to move towards the common electrode (VCOM electrode) for a short time, so that the white particles are more obviously displayed, the effect of displaying white of the pixel unit is enhanced, and even if the pixel unit displays whiter.
When the corresponding pixel unit needs to be controlled from black display to black display, the KK driving waveform is adopted to drive the pixel electrode, wherein in the second driving period, the low-level pulse width of the KK driving waveform in the compensation area is smaller than that of the VCOM driving waveform, or the KK driving waveform is in advance hopped to the high-level voltage VSH from the low level VSL in the compensation area relative to the VCOM driving waveform, a short-time positive voltage difference is formed between the KK driving waveform and the VCOM driving waveform, and the black particles are driven to move towards the common electrode (VCOM electrode) for a short time, so that the black particles are more obviously displayed, the effect of displaying black by the pixel unit is enhanced, and even if the pixel unit displays more black.
Other driving waveforms may be similarly modified, for example, the level pulse width of the other driving waveforms is changed in the compensation area, so as to change the display effect of the pixel unit, and the specific working principle may refer to the related content of the two driving waveforms, which is not described herein.
By changing the level pulse width of the driving waveform in the compensation region as described above, a short positive voltage or a short negative voltage is provided, and the display effect of the pixel unit is improved.
Corresponding to the embodiment of the application function implementation method, the application also provides an electronic paper display screen driving system, electronic equipment and corresponding embodiments.
Fig. 6 is a schematic structural diagram of an electronic paper display driving system according to an embodiment of the present application.
Referring to fig. 6, in the electronic paper display driving system 300 of the present application, the display panel of the display has two kinds of display particles with different charge properties, wherein the two kinds of display particles may be black and white, respectively, the black particles are positively charged, the white particles are negatively charged, and of course, the two kinds of display particles may be a combination of other colors. The system comprises: a dividing means 310 and a driving means 320.
The dividing device 310 is mainly used for dividing the driving period of the display screen into a first driving period and a second driving period.
The first driving period and the second driving period may be equal two time periods. It is understood that the period duration of the first driving period is the same as that of the second driving period.
The dividing device 310 may be further configured to divide the driving period of the display screen into a first driving period, a second driving period, and a third driving period.
The driving device 320 is mainly used for driving the display screen by using an ac voltage signal, so that one of the display particles is driven to move in a first driving period, and the other display particle is driven to move in the opposite direction in a second driving period.
The driving device 320 may be further configured to drive the display screen by using an ac voltage signal, so that one of the display particles is driven to move in a first driving period, the other display particle is driven to move in an opposite direction in a second driving period, and any one of the display particles is driven to move for a short time in a third driving period.
Wherein, in the first driving period and the second driving period, the method comprises the following steps: and the compensation area is used for controlling the display effect of the pixel points.
The driving device 320 may control the pixel points to achieve different display effects by using the same or different level pulse widths in the compensation area of the first ac driving signal and the second ac driving signal in the same driving period.
In this embodiment, the technical scheme of this application drives the display screen through alternating voltage signal, be favorable to improving the voltage that is used for pixel drive, make the accurate removal of two kinds of charge attribute different display particles in the electronic paper display screen microcapsule put in place, promote the uniformity of the displacement volume of two kinds of display particles in each region, carry out the timesharing drive to two kinds of display particles, avoid charging simultaneously to two kinds of display particles, reduce the voltage difference that two kinds of display particles received in different regions leads to removing and not put in place and appear the colour deviation, promote the display effect of product, reduce the screen ghost appearance, and then reduce overall refresh frequency, effectively improve the duration of product.
The specific manner in which the respective modules perform the operations in the apparatus of the above embodiments has been described in detail in the embodiments related to the method, and will not be described in detail herein.
Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Referring to fig. 7, the electronic device 1000 includes a memory 1010 and a processor 1020.
The processor 1020 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Memory 1010 may include various types of storage units, such as system memory, read Only Memory (ROM), and persistent storage. Where the ROM may store static data or instructions that are required by the processor 1020 or other modules of the computer. The persistent storage may be a readable and writable storage. The persistent storage may be a non-volatile memory device that does not lose stored instructions and data even after the computer is powered down. In some embodiments, the persistent storage device employs a mass storage device (e.g., magnetic or optical disk, flash memory) as the persistent storage device. In other embodiments, the persistent storage may be a removable storage device (e.g., diskette, optical drive). The system memory may be a read-write memory device or a volatile read-write memory device, such as dynamic random access memory. The system memory may store instructions and data that are required by some or all of the processors at runtime. Furthermore, memory 1010 may comprise any combination of computer-readable storage media including various types of semiconductor memory chips (e.g., DRAM, SRAM, SDRAM, flash memory, programmable read-only memory), magnetic disks, and/or optical disks may also be employed. In some implementations, memory 1010 may include readable and/or writable removable storage devices such as Compact Discs (CDs), digital versatile discs (e.g., DVD-ROMs, dual-layer DVD-ROMs), blu-ray discs read only, super-density discs, flash memory cards (e.g., SD cards, min SD cards, micro-SD cards, etc.), magnetic floppy disks, and the like. The computer readable storage medium does not contain a carrier wave or an instantaneous electronic signal transmitted by wireless or wired transmission.
The memory 1010 has stored thereon executable code that, when processed by the processor 1020, can cause the processor 1020 to perform some or all of the methods described above.
Furthermore, the method according to the present application may also be implemented as a computer program or computer program product comprising computer program code instructions for performing part or all of the steps of the above-described method of the present application.
Alternatively, the present application may also be embodied as a computer-readable storage medium (or non-transitory machine-readable storage medium or machine-readable storage medium) having stored thereon executable code (or a computer program or computer instruction code) which, when executed by a processor of an electronic device (or a server, etc.), causes the processor to perform part or all of the steps of the above-described methods according to the present application.
The embodiments of the present application have been described above, the foregoing description is exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A method for driving an electronic paper display screen, wherein a display panel of the display screen has two kinds of display particles having different charge properties, the method comprising:
dividing a driving period rule of the display screen into a first driving period and a second driving period which are continuous;
and driving the display screen by adopting an alternating voltage signal so as to drive one display particle to move in the first driving period and drive the other display particle to move in the opposite direction in the second driving period.
2. The method of claim 1, wherein the ac voltage signal is a rectangular pulse signal.
3. The method of claim 1, wherein the ac voltage signal comprises:
a first ac driving signal applied to the common electrode and a second ac driving signal applied to the pixel electrode;
the alternating voltage signal forms a voltage difference with the first alternating driving signal through the second alternating driving signal so as to enable display particles to move.
4. The method of claim 3, wherein the first drive period and the second drive period each comprise: a compensation area for controlling the display effect of the pixel points;
the level pulse width of the first alternating current driving signal and the level pulse width of the second alternating current driving signal in the compensation area in the same driving period are the same or different, so that the pixel points are controlled to achieve different display effects.
5. The method of claim 4, wherein the first drive period and the second drive period each further comprise: a balance area for controlling the color displayed by the pixel points;
the period time of the balance area is longer than that of the compensation area.
6. The method according to any one of claims 1 to 5, wherein the dividing the driving period of the display screen into the continuous first driving period and the second driving period includes:
dividing a driving period rule of the display screen into a first driving period, a second driving period and a third driving period which are continuous;
the driving of the display screen with an alternating voltage signal such that one of the display particles is driven to move in the first driving period and the other display particle is driven to move in the opposite direction in the second driving period comprises:
and driving the display screen by adopting an alternating voltage signal so as to drive one display particle to move in the first driving period, drive the other display particle to move in the opposite direction in the second driving period and drive any display particle to move for a short time in the third driving period.
7. The method of claim 6, wherein the third drive cycle comprises: at least two consecutive compensation zones.
8. An electronic paper display screen driving system, wherein a display panel of the display screen has two display particles with different charge properties, the system comprising:
the dividing device is used for dividing the driving period rule of the display screen into a first driving period and a second driving period which are continuous;
and the driving device is used for driving the display screen by adopting an alternating voltage signal so as to drive one display particle to move in the first driving period and drive the other display particle to move in the opposite direction in the second driving period.
9. An electronic device, comprising:
a processor; and
a memory having executable code stored thereon, which when executed by the processor, causes the processor to perform the method of any of claims 1-7.
10. A computer-readable storage medium having executable code stored thereon, characterized by:
the executable code, when executed by a processor of an electronic device, causes the processor to perform the method of any one of claims 1-7.
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| CN202310344959.6A CN116364022A (en) | 2023-03-31 | 2023-03-31 | Electronic paper display screen driving method and system and electronic equipment |
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| CN202310344959.6A CN116364022A (en) | 2023-03-31 | 2023-03-31 | Electronic paper display screen driving method and system and electronic equipment |
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