CN111369950B - Driving method of electrophoretic display - Google Patents
Driving method of electrophoretic display Download PDFInfo
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- CN111369950B CN111369950B CN202010167763.0A CN202010167763A CN111369950B CN 111369950 B CN111369950 B CN 111369950B CN 202010167763 A CN202010167763 A CN 202010167763A CN 111369950 B CN111369950 B CN 111369950B
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- 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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Abstract
The invention provides a driving method of an electrophoretic display, which comprises a reverse display stage and a setting driving display stage; in the reverse display stage, the first pixel waveform and the second pixel waveform respectively drive the corresponding display units to display the second color and the first color; in the setting driving display stage, a first pixel waveform and a second pixel waveform respectively drive a corresponding display unit to display a first color and a second color, wherein the first pixel waveform and the second pixel waveform respectively comprise a setting waveform and a stop driving waveform which are alternately carried out; when the waveform in the first pixel waveform is the stop driving waveform, the waveform in the second pixel waveform is the set waveform. The electrophoretic display driven by the driving method of the electrophoretic display provided by the invention has better display effect.
Description
Technical Field
The invention belongs to the technical field of display devices, and particularly relates to a driving method of an electrophoretic display.
Background
Electrophoretic displays have the advantages of high contrast, wide viewing angles, low power consumption, bistability, and the like. The display effect of the novel liquid crystal display is the same as that of common paper, so that people can read comfortably, and the novel liquid crystal display can be converted and refreshed to display new contents like a common liquid crystal display. The use of electrophoretic display reduces the felling of wood, and is beneficial to realizing green ecology, so people pursue the application. Conventional driving methods of electronic paper are, for example (see fig. 1): the first section of waveform 1 or the sixth section of waveform 6 is driven to the reverse color, and the second section of waveform 2 and the third section of waveform 3 are a group of refreshing waveforms with opposite voltages; the fourth segment waveform 4 and the fifth segment waveform 5 are another set of refresh waveforms with opposite voltages. As with the first waveform S1 and the third waveform S3, when the first segment waveform 1 is not driven, the sixth segment waveform 6 is driven to the reverse color and the seventh segment waveform 7 is refreshed to the target color. As with the second set of waveforms S2 and the fourth set of waveforms S4, when the first segment waveform 1 reverses color, the sixth segment waveform 6 is driven directly to the target color and the seventh segment waveform 7 is not driven. This presents a problem in that there may be some pixels driven and some pixels not driven during the seventh waveform 7, and if the driven and non-driven pixels are of different colors and are located adjacently, this may result in the driven pixel actually displaying a color that is spread to the edge-adjacent pixels, which may overlay the non-driven pixels of different colors. Referring to fig. 2, when the display pattern S12 is driven from the initial pattern S11, the pattern is blurred, the sharpness is reduced, and the display effect is poor.
The above problems have been a technical difficulty in the art. In order to solve the above problem, it is studied to drive all pixels to the target color in the seventh driving waveform to solve the problem caused by some pixels driving and some pixels not driving. However, the seventh driving waveform drives all the pixels, and the problem of virtual reality patterns cannot be solved well. If the target pattern is a pattern in which one color pixel is wrapped by a different color pixel, the seventh driving waveform simultaneously drives all the pixels, which also causes the wrapped pixels to have a problem of being covered. And all pixels are driven in time, so that the power consumption is large, and the method is not economical and energy-saving.
Disclosure of Invention
In view of the deficiencies of the prior art, the present invention provides a driving method for an electrophoretic display with better updating effect.
The invention provides a driving method of an electrophoretic display, which adopts a first pixel waveform and a second pixel waveform to respectively drive a plurality of display units of the electrophoretic display, wherein the first pixel waveform is used for driving the corresponding display units to display a first color, and the second pixel waveform is used for driving the corresponding display units to display a second color; each display unit comprises one or more display micro-units, each display micro-unit comprises a transparent packaging shell, an electrophoretic liquid packaged in the transparent packaging shell, and first color electrophoretic particles and second color electrophoretic particles dispersed in the electrophoretic liquid, and the first pixel waveforms and the second pixel waveforms are used for driving the first color electrophoretic particles and the second color electrophoretic particles to move in the electrophoretic liquid;
the driving method comprises a reverse display stage and a setting driving display stage;
in the reverse display stage, the first pixel waveform and the second pixel waveform respectively drive the corresponding display units to display a second color and a first color;
the setting driving display stage is positioned after the reverse display stage, in the setting driving display stage, the first pixel waveform and the second pixel waveform respectively drive the corresponding display unit to display a first color and a second color, the first pixel waveform and the second pixel waveform both comprise a setting waveform and a stop driving waveform which are alternately performed, the setting waveform is used for driving the display unit to a target color, and the stop driving waveform is not driven;
in the setting driving display stage, at the same driving time, when the waveform in the first pixel waveform is the setting waveform, the waveform in the second pixel waveform is the stop driving waveform; when the waveform in the first pixel waveform is the stop driving waveform, the waveform in the second pixel waveform is the set waveform.
Preferably, in the set driving display stage, the set waveforms of the first pixel waveform and the second pixel waveform have multiple segments, and are alternately performed with the stop driving waveform, the pre-drive waveform is set as the (n-1) th segment, the post-drive waveform is set as the (n) th segment, and the drive time of the (n-1) th segment of the set waveform is longer than that of the (n) th segment of the set waveform.
Preferably, in the set driving display phase, the stop driving waveforms of the first pixel waveform and the second pixel waveform have a plurality of stages, the stop driving waveforms are alternately performed with the set waveform, the stop driving waveform performed first is set as the m-1 th stage, the stop driving waveform performed later is set as the m-1 th stage, and the non-driving time of the m-1 th stage stop driving waveform is longer than that of the m-1 th stage stop driving waveform.
Preferably, the total effective driving time of the set waveform of the set driving display phase is equal to the total effective driving time of the reverse display phase driving to the reverse display color.
Preferably, the driving method of an electrophoretic display according to claim 1, wherein the reverse display phase comprises a reverse display waveform and a stop reverse display waveform, the reverse display waveform is used to drive the display unit to a reverse display color different from the target color, the stop reverse display waveform is not driven, and at the same driving time, when the first pixel waveform is the reverse display waveform, the second pixel waveform is the stop reverse display waveform; when the first pixel waveform is a stop reverse showing waveform, the second pixel waveform reverses showing waveform.
Preferably, in the first pixel waveform and the second pixel waveform, a time when the reverse reproduction stop waveform of the reverse reproduction stage does not drive is the same as a time when the drive stop waveform of the set drive display stage does not drive.
Preferably, in the setting driving display stage, the first pixel waveform and the second pixel waveform respectively drive a setting first section waveform, a setting second section waveform and a setting third section waveform in sequence, the setting first section waveform and the setting third section waveform are the stop driving waveforms, and the setting second section waveform is the setting waveform; or the setting first section waveform and the setting third section waveform are driven to be the setting waveform, and the setting second section waveform is the stopping driving waveform.
Preferably, after the pixel is driven to the reverse color and before the set driving display phase, the method further comprises the step of refreshing the pixel, and the refreshing is carried out alternately by adopting the driving to the target color and the driving to the reverse color.
Preferably, the step of refreshing the pixels is that the first pixel waveform and the second pixel waveform are driven to the same color at the same time at the same driving time.
Preferably, the first color is white and the second color is black
The electrophoretic display driven by the driving method of the electrophoretic display provided by the invention has better display effect.
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The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a waveform diagram illustrating a driving method of an electrophoretic display according to the prior art;
FIG. 2 is a diagram illustrating the effect of updating an electrophoretic display according to the prior art;
fig. 3 is a waveform diagram illustrating a driving method of an electrophoretic display according to this embodiment;
Detailed Description
The technical solutions of the present invention are further described in detail with reference to specific examples so that those skilled in the art can better understand the present invention and can implement the present invention, but the examples are not intended to limit the present invention.
Referring to fig. 3, an embodiment of the present invention provides a driving method for an electrophoretic display, where the driving method uses a first pixel waveform and a second pixel waveform to drive a plurality of display units of the electrophoretic display respectively, and the first pixel waveform is used to drive the corresponding display unit to display a first color, that is, for the first pixel waveform, a target color is the first color. The second pixel waveform is used for driving the corresponding display unit to display a second color; that is, for the second pixel waveform, the target color is the second color. The electrophoretic display of the embodiments of the present invention may be a two-color electrophoretic display.
The first color and the second color are different, and for example, the first color may be white and the second color may be black. It may be that when the waveform that the pixel is finally driven to black is the first pixel waveform, then the waveform that the pixel is finally driven to white is the second pixel waveform. For example, the black-pixel-drive-to-black-pixel waveform S101 and the white-pixel-drive-to-black-pixel waveform S103 are the first pixel waveform, then the black-pixel-drive-to-white-pixel waveform S102 and the white-pixel-drive-to-white-pixel waveform S104 are the second pixel waveform. Of course, the black-pixel-to-black-pixel waveform S101 and the white-pixel-to-black-pixel waveform S103 may be the second pixel waveform, and the black-pixel-to-white-pixel waveform S102 and the white-pixel-to-white-pixel waveform S104 may be the first pixel waveform. The waveform S101 of driving the black pixel to the black pixel in this embodiment means that a certain display unit is initially a black pixel and is finally driven to the black pixel. The white pixel drive to white pixel waveform S104 is a waveform that a display unit is initially a white pixel and eventually needs to be driven to a white pixel. And so on for others.
In the driving method of the electrophoretic display of this embodiment, the first pixel waveform and the second pixel waveform are driven simultaneously, that is, the black pixel driving to black pixel waveform S101, the black pixel driving to white pixel waveform S102, the white pixel driving to black pixel waveform S103, and the white pixel driving to white pixel waveform S104 are driven simultaneously.
Each display unit of the present embodiment includes one or more display micro-units, and the display micro-units of the present embodiment may be microcups, microcells, or microcapsules. The display microcell of the present embodiment includes a transparent encapsulation case, an electrophoretic fluid encapsulated in the transparent encapsulation case, and first color electrophoretic particles and second color electrophoretic particles dispersed in the electrophoretic fluid. For example, when the display microcell is a microcapsule, the outer shell is a microcapsule shell, and the electrophoretic display liquid and the electrophoretic particles dispersed in the electrophoretic liquid are encapsulated in the shell. The electrophoretic particles include first color electrophoretic particles and second color electrophoretic particles, which may be oppositely charged. The first and second pixel waveforms are used to drive the first and second color electrophoretic particles to move in the electrophoretic fluid.
The driving method of the electrophoretic display provided by the embodiment of the invention comprises a reverse display stage and a setting driving display stage;
in the reverse display stage, the first pixel waveform and the second pixel waveform respectively drive the corresponding display units to reverse display colors, where the reverse display colors in this embodiment refer to color pixels different from the target colors. That is, the first pixel waveform and the second pixel waveform drive the corresponding display cells to display the second color and the first color, respectively. For example, the target color of the first pixel waveform is a first color, and then the anti-color of the first pixel waveform is a second color. Taking the example of driving the black pixel to the black pixel waveform S101, the target color is black, and the reverse color is white. The final positive voltage waveform to be driven to black is then the first waveform 11 is driven to white first to achieve the reverse display.
The step of driving to reverse color in this embodiment is implemented at the time of the first segment of the waveform 11 or the second segment of the waveform 12. For example, the black pixel drive-to-black pixel waveform S101 is inverted at the first segment waveform 11, and the black pixel drive-to-white pixel waveform S102 is inverted at the second segment waveform 12.
And the setting driving display stage is positioned after the reverse display stage, in the setting driving display stage, the first pixel waveform and the second pixel waveform respectively drive the corresponding display unit to display a first color and a second color, the first pixel waveform and the second pixel waveform respectively comprise a setting waveform and a stop driving waveform which are alternately carried out, the setting waveform is used for driving the display unit to a target color, and the stop driving waveform does not drive. Referring to fig. 3, in the present embodiment, the eighth waveform 72 in the black pixel drive-to-black pixel waveform S101 and the white pixel drive-to-black pixel waveform S103 is a set waveform; the seventh and ninth waveforms 71 and 73 are stop driving waveforms. The seventh and ninth waveforms 71 and 73 in the black-pixel-to-white-pixel waveform S102 and the white-pixel-to-white-pixel waveform S104 are set waveforms, and the eighth waveform 72 is a stop driving waveform. That is, the voltage is positive or negative during the set waveform driving, and cannot be 0V. The driving waveform is stopped and no driving occurs, and the driving voltage is OV. In this embodiment, at the beginning of the setting driving display stage, the first pixel waveform and the second pixel waveform may stop driving the waveforms first, that is, do not drive first; it is also possible to drive the set waveform first, i.e. to the target color first.
In the setting driving display stage, in the same driving time, when the waveform in the first pixel waveform is the setting waveform, the waveform in the second pixel waveform is the stop driving waveform; that is, at the same driving time, the first pixel waveform drives the set waveform, and the corresponding second pixel waveform is not driven. When the waveform in the first pixel waveform is the stop driving waveform, the waveform in the second pixel waveform is the set waveform. Referring to fig. 3, for example, if the black pixel is driven to the black pixel waveform S101, the seventh waveform 71 is the stop driving waveform, and the corresponding black pixel is driven to the white pixel waveform S102, the seventh waveform 71 is the set waveform,
in the driving method of the electrophoretic display according to this embodiment, the first pixel waveform and the second pixel waveform in the reverse display stage before the set driving display stage drive the pixels to the reverse display color different from the target color, so that when the target color is finally driven, the first pixel waveform and the second pixel waveform can both achieve the following polarity voltage balance. Over time, too large unbalanced voltage may affect the stability of the particles, and the effect is irreversible, in the driving method of the electrophoretic display of this embodiment, the voltage balance is better realized, and the better display effect is realized.
In the driving method of the electrophoretic display according to this embodiment, in the set driving display stage, at the same driving time, when the waveform in the first pixel waveform is the set waveform, the waveform in the second pixel waveform is the stop driving waveform. When the waveform in the first pixel waveform is the stop driving waveform, the waveform in the second pixel waveform is the set waveform. The driving balance of the two colors is realized, the pixel diffusion of different colors is not too great, and the display effect is better.
Referring to FIG. 3, in this embodiment, the front driving waveform is set as the (n-1) th segment, and the rear driving waveform is set as the (n) th segment, where n is an integer greater than or equal to 2 in this embodiment. In this embodiment, the driving time of the n-1 th segment of the setting waveform is longer than that of the nth segment of the setting waveform. I.e., the continuous driving time of the multi-segment set waveform is gradually reduced. For example, in the black pixel driving-to-white pixel waveform S102, the seventh waveform 71 is a front driving waveform, the ninth waveform 73 is a rear driving waveform, and the continuous driving time of the seventh waveform 71 is longer than that of the ninth waveform 73.
Referring to fig. 3, in a preferred embodiment, the stop driving waveform of the first pixel waveform and the second pixel waveform has a plurality of segments alternating with the set waveform during the set driving display period, for example, the stop driving waveform may be 2 segments and the set waveform may be 1 segment, or the set waveform may be 2 segments, the stop driving waveform may be 2 segments, and the like. The first driving waveform is set as the m-1 th segment, and the second driving waveform is set as the m-th segment, wherein m is an integer larger than or equal to 2 in the embodiment. The continuous non-driving time of the m-1 th segment stop driving waveform is longer than that of the m-th segment stop driving waveform. For example, in the black pixel driving-to-black pixel waveform S101, the seventh waveform 71 is a stop driving waveform performed first, the ninth waveform 73 is a stop driving waveform performed later, and the continuous non-driving time for stopping driving of the seventh waveform 71 is longer than the continuous non-driving time for stopping driving of the ninth waveform 73.
Referring to fig. 3, in the first pixel waveform and the second pixel waveform, the total effective driving time of the set waveform in the set driving display phase is equal to the total effective driving time of the inversion phase driving to the inversion color (herein, referred to as the effective driving time of driving to the inversion color). If the driving time of the second waveform 12 for performing the reverse display is t12, the driving time of the seventh waveform 71 (set waveform) is t71, and the driving time of the ninth waveform 73 (set waveform) is t73 in the waveform S102 for driving the black pixel to the white pixel, the driving time of the set waveform in the set driving display stage is equal to the driving time of the reverse display stage for driving the reverse display color: t12 ═ t71+ t 73. Matching DC voltage balancing can be achieved.
Referring to fig. 3, in a preferred embodiment, the set waveform of the first pixel waveform and the second pixel waveform has a plurality of stages alternately with the stop driving waveform in the set driving display stage. For example, the set waveform may be 2 segments and the stop driving waveform 1 segment, or the set waveform may be 2 segments, the stop driving waveform 2 segments, or the like. The total effective drive time of the set waveform in the set drive display stage is equal to the total effective drive time from the reverse display stage to the reverse display color. For example, in the first pixel waveform, when the set waveform is 2 segments, the sum of the drive times for driving the two segments of the set waveform is equal to the drive time for driving to the reverse color.
Referring to fig. 3, in the preferred embodiment, the reverse display phase includes a reverse display waveform for driving the display unit to a reverse display color different from the target color and a stop reverse display waveform, the stop reverse display waveform is not driven, and at the same driving time, when the first pixel waveform is the reverse display waveform, the second pixel waveform is the stop reverse display waveform; when the first pixel waveform is a stop reverse showing waveform, the second pixel waveform reverses showing waveform. For example, the black pixel is driven to the black pixel waveform S101, and the inversion is performed in the first segment waveform 11, and the black pixel is not driven in the second segment waveform 12. The black pixel drive to white pixel waveform S102 is for realizing the reverse display at the time of the second segment waveform 12 and is not driven at the time of the first segment waveform 11.
Referring to fig. 3, in a further preferred embodiment, of the first pixel waveform and the second pixel waveform, a time at which the stop reverse waveform of the reverse phase does not drive is the same as a time at which the stop drive waveform of the set drive display phase does not drive. For example, in the second pixel waveform, the driving time for stopping driving of the pixels before or after driving the pixels to the reverse color is the same as the time for which driving does not occur in the set driving display stage. The DC voltage balance can be better ensured. For example, in the waveform S102 of driving the black pixel to the white pixel, the time for stopping driving of the first waveform 11 is t11, and the time for driving the eighth waveform 72 of the set driving display stage is t 72. Then, t11 is t 72.
Referring to fig. 3, in the preferred embodiment, the first pixel waveform and the second pixel waveform sequentially drive the set first segment waveform (seventh segment waveform 71), the set second segment waveform (eighth segment waveform 72), and the set third segment waveform (ninth segment waveform 73), respectively, during the set driving display period. If the black pixel is driven to the black pixel waveform S101 and the white pixel is driven to the black pixel waveform S103, setting the first section waveform and the third section waveform as stop driving waveforms, and setting the second section waveform as a setting waveform; if the black pixel is driven to the white pixel waveform S102 and the white pixel is driven to the white pixel waveform S104, the first setting wave and the third setting wave are driven to be the setting waveform, and the second setting wave is the stopping driving waveform. The driving circuit is finally driven to the target color through three-segment waveforms, has short driving time, can avoid the phenomenon that pixels with different colors are diffused too much, has good voltage balance, and ensures good display effect in short driving time.
Referring to fig. 3, in a preferred embodiment, after driving the pixels to the reverse color, and before the set-drive display phase, the method further comprises the step of refreshing the pixels by alternately driving to the first color and driving to the second color. The refresh of the present embodiment is that the positive waveform and the negative waveform are alternately refreshed. Assuming that driving to the first color is a positive waveform, driving to the second color is a negative waveform, and vice versa. The refresh waveform may be a positive waveform start or a negative waveform start. For example, referring to fig. 3, the third, fourth, fifth and sixth waveforms 13, 14, 15 and 16 are all refresh waveforms, and when a negative waveform starts, the third and fifth waveforms 13 and 15 are negative waveforms, and the fourth and sixth waveforms 14 and 16 are positive waveforms. And in the driving process, the residual image can be better eliminated by continuously refreshing the refreshing waveform.
Referring to fig. 3, in a preferred embodiment, the first pixel waveform and the second pixel waveform are driven to the same color at the same time, e.g., to the first color or to the second color at the same time, at the same drive time. If the first color is black and the second color is white, the step of refreshing the pixels is full-screen white-black refreshing, namely full-screen white brushing and full-screen black brushing are carried out firstly; or first brushing the whole screen to black and then brushing the whole screen to white. The step of refreshing the pixels in the second pixel waveform ends with refreshing to the first color when the step of refreshing the pixels in the first pixel waveform ends with refreshing to the first color. The effective time to achieve driving to black is different from the effective time to achieve driving to white. Depending on the background color of the electrophoretic display or other display requirements, the refresh waveform may be adjusted to a positive waveform start or a negative waveform to achieve that the driven black may be more saturated and black, or the white may be more saturated and white.
For example, when the black pixel is driven to the black pixel waveform S101, the sixth waveform 16 is already driven to black, the eighth waveform 72 is driven to black again, and the effective driving time actually driven to black is the sum of the driving time of the sixth waveform 16 and the driving time of the eighth waveform 72. And the corresponding black pixel is driven to the white pixel waveform S102, the effective driving time actually driven to white is the sum of the driving times of the seventh segment waveform 71 and the ninth segment waveform 73. Then the black active time and the white active time are different, and the black active drive time is greater, which makes the driven black more saturated and black.
If it is desired to achieve a white drive that is more saturated and whiter, the refresh waveform begins with a positive waveform and ends with a negative waveform, such that the refresh waveform ends with a drive to a white pixel, such that the drive to white is actually active for a longer period of time than the drive to black is actually active, and the white drive is more saturated and whiter.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of the equivalent structure L or equivalent flow path, or direct or indirect applications in other related fields, which are made by the present specification, are included in the scope of the present invention.
Claims (8)
1. A driving method of an electrophoretic display is characterized in that the driving method respectively drives a plurality of display units of the electrophoretic display by adopting a first pixel waveform and a second pixel waveform, wherein the first pixel waveform is used for driving the corresponding display unit to display a first color, and the second pixel waveform is used for driving the corresponding display unit to display a second color; each display unit comprises one or more display micro-units, each display micro-unit comprises a transparent packaging shell, an electrophoretic liquid packaged in the transparent packaging shell, and first color electrophoretic particles and second color electrophoretic particles dispersed in the electrophoretic liquid, and the first pixel waveforms and the second pixel waveforms are used for driving the first color electrophoretic particles and the second color electrophoretic particles to move in the electrophoretic liquid;
the driving method comprises a reverse display stage and a setting driving display stage;
in the reverse display stage, the first pixel waveform and the second pixel waveform respectively drive the corresponding display units to display a second color and a first color;
the setting driving display stage is positioned after the reverse display stage, in the setting driving display stage, the first pixel waveform and the second pixel waveform respectively drive the corresponding display units to display a first color and a second color, and in the setting driving display stage, at the same driving time, when the waveform in the first pixel waveform is the setting waveform, the waveform in the second pixel waveform is the stop driving waveform; when the waveform in the first pixel waveform is a stop driving waveform, the waveform in the second pixel waveform is a set waveform; the setting waveform is used for driving the display unit to a target color, and the driving stopping waveform does not generate driving;
in the setting driving display stage, setting waveforms of the first pixel waveform and the second pixel waveform are multiple and alternate with the stopping driving waveform, the first driving waveform is set as the (n-1) th segment, the later driving waveform is set as the (n) th segment, and the driving time of the (n-1) th segment of the setting waveform is longer than that of the (n) th segment of the setting waveform;
in a setting driving display stage, the stopping driving waveforms of the first pixel waveform and the second pixel waveform are multiple and are alternately carried out with the setting waveform, the stopping driving waveform carried out firstly is set as an m-1 th segment, the stopping driving waveform carried out later is set as an m-1 th segment, and the non-driving time of the m-1 th segment is longer than that of the m-1 th segment;
m is a positive integer greater than or equal to 2;
and n is a positive integer greater than or equal to 2.
2. A method of driving an electrophoretic display as claimed in claim 1, wherein the total active driving time of the set waveforms of the set driving display phases is equal to the total active driving time of the inversion phases driving to the inversion colors.
3. The driving method of an electrophoretic display according to claim 1, wherein the reverse display phase comprises a reverse display waveform and a stop reverse display waveform, the reverse display waveform is used to drive the display cells to a reverse display color different from the target color, the stop reverse display waveform is not driven, and at the same driving time, when the first pixel waveform is the reverse display waveform, the second pixel waveform is the stop reverse display waveform; when the first pixel waveform is a stop reverse showing waveform, the second pixel waveform reverses showing waveform.
4. A method of driving an electrophoretic display as claimed in claim 3, wherein the first and second pixel waveforms are such that the time during which the inversion-stopping waveform of the inversion phase is not driven is the same as the time during which the inversion-stopping waveform of the set-driving display phase is not driven.
5. The driving method of an electrophoretic display according to claim 1, wherein in the set driving display phase, the first pixel waveform and the second pixel waveform sequentially drive a set first segment waveform, a set second segment waveform and a set third segment waveform, respectively, the set first segment waveform and the set third segment waveform being the stop driving waveform, the set second segment waveform being the set waveform; or the setting first section waveform and the setting third section waveform are driven to be the setting waveform, and the setting second section waveform is the stopping driving waveform.
6. A method of driving an electrophoretic display as claimed in claim 1, characterized in that after driving the pixels to the reverse color, and before the set-drive display phase, the method further comprises the step of refreshing the pixels by alternately driving to the target color and driving to the reverse color.
7. A method of driving an electrophoretic display as claimed in claim 6, wherein the step of refreshing the pixels is such that the first pixel waveform and the second pixel waveform are driven to the same color at the same time at the same driving time.
8. A method of driving an electrophoretic display as claimed in claim 1, wherein the first color is white and the second color is black.
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| CN114446249B (en) * | 2020-11-03 | 2023-04-07 | 广州奥翼电子科技股份有限公司 | Electrophoretic display control method, device and system |
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| WO2005088600A2 (en) * | 2004-03-01 | 2005-09-22 | Koninklijke Philips Electronics N.V. | Method of increasing image bi-stability and grayscale accuracy in an electrophoretic display |
| JP4577349B2 (en) * | 2007-03-29 | 2010-11-10 | セイコーエプソン株式会社 | Electrophoretic display device, driving method thereof, and electronic apparatus |
| JP5125974B2 (en) * | 2008-03-24 | 2013-01-23 | セイコーエプソン株式会社 | Electrophoretic display device driving method, electrophoretic display device, and electronic apparatus |
| CN101853635B (en) * | 2010-06-07 | 2012-06-20 | 友达光电股份有限公司 | Display-driving method |
| JP5601469B2 (en) * | 2010-12-01 | 2014-10-08 | セイコーエプソン株式会社 | Electrophoretic display device driving method, electrophoretic display device, and electronic apparatus |
| CN105845087B (en) * | 2014-12-31 | 2018-08-24 | 广州奥翼电子科技股份有限公司 | Drive control method, controller, device and the display device of electronic paper of Electronic Paper |
| CN105575336B (en) * | 2016-01-15 | 2018-04-24 | 深圳市国华光电研究院 | A kind of electro phoretic display device drive waveforms self-generating method |
| JP2019090934A (en) * | 2017-11-15 | 2019-06-13 | 凸版印刷株式会社 | Driving device, method for driving electronic display medium, and display device |
| CN111048046B (en) * | 2019-12-04 | 2021-01-15 | 广州奥翼电子科技股份有限公司 | Driving method of double-color electrophoretic display |
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