Driving method of electrophoretic display

Abstract

The present application proposes a driving method for an electrophoretic display, the method comprising: driving a first pixel and a second pixel to display a first color; driving the second pixel to display a second color; wherein the first pixel is a pixel corresponding to a background image in a target image, and the second pixel is a pixel corresponding to an image image in the target image; the first color is a target display color for the background image, and the second color is a target display color for the image image. The present application achieves the best display effect of the electrophoretic display, and solves problems such as image blurring and decreased sharpness.

Description

Technical Field

[0001] The present application relates to the technical field of electrophoretic display, and in particular to a driving method of an electrophoretic display. Background Art

[0002] Electrophoretic displays have the advantages of high contrast, wide viewing angle, low power consumption and bistable state. In the images presented by electrophoretic displays, the background image and image pixels are often pixels of different colors and are located adjacent to each other. The driving method of the prior art will cause the actual display color of the image pixels to spread to the edge adjacent pixels, which will then cover the color of the background image, making the image blurry, the sharpness reduced, the display effect poor, and seriously affecting the user experience. Summary of the invention

[0003] In order to solve the technical problem in the prior art that the displayed image appears uneven and has poor display effect due to diffusion and interference between adjacent pixels of different colors, the present application provides a driving method for an electrophoretic display, the main purpose of which is to solve the problems of image blurring and decreased sharpness, and to improve the display effect of the electrophoretic display.

[0004] To achieve the above object, the present application provides a driving method for an electrophoretic display, the method comprising the steps of:

[0005] S1: driving the first pixel and the second pixel to display a first color;

[0006] S2: driving the second pixel to display the second color;

[0007] Among them, the first pixel is the pixel corresponding to the background picture in the target picture, and the second pixel is the pixel corresponding to the image picture in the target picture; the first color is the target display color of the background picture, and the second color is the target display color of the image picture.

[0008] Optionally, before step S1, the method further includes the following steps:

[0009] S01: driving the first pixel to display the second color, and driving the second pixel to display the first color.

[0010] Optionally, before step S01 , the method further includes step S011 : driving both the first pixel and the second pixel to display the second color, or driving both the first pixel and the second pixel to display the first color.

[0011] Optionally, after step S01 and before step S1, the following steps are further included:

[0012] S021: driving the first pixel and the second pixel to display a second color.

[0013] Optionally, before step S1, the method further includes the following steps:

[0014] S01 ′: driving the first pixel and the second pixel to display a second color.

[0015] Optionally, in step S011, the first pixel is driven by the first sub-driving waveform to display the first color, and the second pixel is driven by the second sub-driving waveform to display the first color; or, in step S011, the first pixel is driven by the first sub-driving waveform to display the second color, and the second pixel is driven by the second sub-driving waveform to display the second color;

[0016] The method further comprises the steps of:

[0017] S012: judging whether the initial startup energy provided by the first sub-driving waveform and the second sub-driving waveform is sufficient according to the first display effect presented when the first pixel displays the second color and the second pixel displays the first color in step S011;

[0018] S013: If the initial startup energy provided by the first sub-driving waveform and the second sub-driving waveform is insufficient, readjust the first driving duration of the first sub-driving waveform and the second driving duration of the second sub-driving waveform. After the adjustment is completed, re-execute step S011 until the initial startup energy provided by the first sub-driving waveform and the second sub-driving waveform is sufficient.

[0019] Optionally, in step S011, the first pixel is driven by the first sub-driving waveform to display the first color, and the second pixel is driven by the second sub-driving waveform to display the first color; or, in step S011, the first pixel is driven by the first sub-driving waveform to display the second color, and the second pixel is driven by the second sub-driving waveform to display the second color;

[0020] In step S01, the first pixel is driven by the third sub-driving waveform to display the second color, and the second pixel is driven by the fourth sub-driving waveform to display the first color;

[0021] In step S1, the first pixel is driven by the fifth sub-driving waveform to display the first color, and the second pixel is driven by the sixth sub-driving waveform to display the first color;

[0022] In step S2, the driving voltage of the first pixel is set to a power-off state by the seventh sub-driving waveform, and the second pixel is driven by the eighth sub-driving waveform to display a second color;

[0023] The first sub-driving waveform to the eighth sub-driving waveform all provide driving voltages for corresponding pixel electrodes.

[0024] Optionally, if in the production debugging process, after step S2, the method further includes the steps of:

[0025] S3: Determine whether the second display effect presented by the first pixel and the second pixel in step S2 satisfies a preset effect;

[0026] S4: If the second display effect does not meet the preset effect, readjust at least one of the first driving duration of the first sub-driving waveform, the second driving duration of the second sub-driving waveform, the third driving duration of the third sub-driving waveform, the fourth driving duration of the fourth sub-driving waveform, the fifth driving duration of the fifth sub-driving waveform, the sixth driving duration of the sixth sub-driving waveform, the seventh driving duration of the seventh sub-driving waveform, and the eighth driving duration of the eighth sub-driving waveform.

[0027] Optionally, the first color is black and the second color is white.

[0028] Or, the first color is white and the second color is black.

[0029] Optionally, the first sub-driving waveform and the second sub-driving waveform are both first polarity voltage waveforms, or the first sub-driving waveform and the second sub-driving waveform are both second polarity voltage waveforms;

[0030] The third sub-driving waveform is a first polarity voltage waveform, and the fourth sub-driving waveform is a second polarity voltage waveform;

[0031] The fifth sub-driving waveform and the sixth sub-driving waveform are both second polarity voltage waveforms;

[0032] The seventh sub-driving waveform is the same as the voltage of the common electrode, and the eighth sub-driving waveform is a first polarity voltage waveform.

[0033] Optionally, the first driving duration of the first sub-driving waveform is equal to the second driving duration of the second sub-driving waveform;

[0034] The third driving duration of the third sub-driving waveform is equal to the fourth driving duration of the fourth sub-driving waveform;

[0035] The fifth driving duration of the fifth sub-driving waveform is equal to the sixth driving duration of the sixth sub-driving waveform;

[0036] The seventh driving duration of the seventh sub-driving waveform is equal to the eighth driving duration of the eighth sub-driving waveform.

[0037] Optionally, the first driving duration of the first sub-driving waveform is equal to the third driving duration of the third sub-driving waveform, and both are 200-1000 ms.

[0038] Optionally, the difference between the fifth driving duration and the seventh driving duration is not less than one third of the fifth driving duration, and the fifth driving duration and the seventh driving duration are both 200-800 ms.

[0039] The driving method of the electrophoretic display proposed in the present application first drives the first pixel and the second pixel of the electrophoretic display to display the first color to achieve an extreme optical display state, provides initial energy for the electrophoretic display and enables all particles to reach a unified initial state, and at the same time can preferentially display the background in the target picture and set the second pixel corresponding to the image in the target picture to the same voltage as the background, thereby reducing the diffusion and interference of the image pixels on the background picture and preventing interference of residual potential between the pixel electrode and the common electrode. Finally, the background picture is powered off to display the image pixels as the corresponding second color, and the pixel diffusion and interference are suppressed by the time the electric field is applied to the image pixels, thereby reducing the possibility of image blurring, reduced sharpness, and poor display effect, so that the edges of the presented image are clear and the colors are saturated, thereby achieving the purpose of providing a display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the structure of an electrophoretic display in one embodiment of the present application;

[0041] Figure 2 Schematic diagram of a driving method of an electrophoretic display in one embodiment of the present application;

[0042] Figure 3 is a schematic flow chart of a driving method of an electrophoretic display in another embodiment of the present application;

[0043] Figure 4 is a schematic flow chart of a driving method of an electrophoretic display in another embodiment of the present application;

[0044] Figure 5 is a schematic flow chart of a driving method of an electrophoretic display in another embodiment of the present application;

[0045] Figure 6 is a schematic flow chart of a driving method of an electrophoretic display in another embodiment of the present application;

[0046] Figure 7 4 is a waveform diagram of a driving waveform of an electrode in a specific embodiment of the present application.

[0047] Description of the reference numerals: upper substrate 1 , common electrode layer 2 , microcapsule layer 3 , lower substrate 4 , microcapsule 5 .

[0048] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of this application. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0050] Figure 1 FIG. 1 is a schematic diagram of the structure of an electrophoretic display in an embodiment of the present application, referring to FIG. Figure 1 The electrophoretic display includes a display panel and a driving circuit, wherein the display panel includes an upper substrate 1, a common electrode layer 2, a microcapsule layer 3, and a lower substrate 4 stacked in sequence; the lower substrate 4 includes a pixel electrode, the microcapsule layer 3 includes a plurality of microcapsules 5, and the microcapsules 5 include a plurality of charged particles of a first color and a plurality of charged particles of a second color, and the charged particles of the first color and the charged particles of the second color have opposite charges, that is, one of them is positively charged and the other is negatively charged. The display panel includes a plurality of pixels, and each pixel corresponds to a plurality of microcapsules 5. Under the action of the electric field, the charged particles in the microcapsules 5 move to a specified position to achieve display.

[0051] The microcapsule 5 of this embodiment includes a plurality of particles of two different colors, such as black particles and white particles, or black particles and yellow particles, or white particles and yellow particles, or black particles and red particles, etc., but not limited thereto. Taking black particles and white particles as an example, under the action of the electric field, if all the black particles swim to the upper layer (a layer in which the user can see the electrophoretic display screen), the electrophoretic display presents a completely black screen; if all the white particles swim to the upper layer, the electrophoretic display presents a completely white screen. If the particles that swim to the upper layer include some black particles and some white particles, the electrophoretic display presents a black and white image screen.

[0052] The driving circuit is used to control the voltage between the common electrode layer 2 and the pixel electrode in the lower substrate 4, thereby controlling the migration of particles in the microcapsules 5. To control the display color of a pixel, it is necessary to control the movement of particles in the corresponding multiple microcapsules.

[0053] Example 1

[0054] Figure 2 FIG. 1 is a flow chart of a driving method of an electrophoretic display in an embodiment of the present application. Figure 2 The driving method of the electrophoretic display includes the following steps S1-S2.

[0055] S1: driving the first pixel and the second pixel to display a first color.

[0056] Among them, the first pixel is the pixel corresponding to the background picture in the target picture, and the second pixel is the pixel corresponding to the image picture in the target picture; the first color is the target display color of the background picture, and the second color is the target display color of the image picture.

[0057] Specifically, the first pixel is driven to display the first color by the fifth sub-driving waveform, and the second pixel is driven to display the first color by the sixth sub-driving waveform. The first color and the second color are two different colors, and the first color and the second color can be any two different colors such as yellow, black, red, and white.

[0058] The fifth sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the first pixel to drive the first pixel so that the first pixel is displayed in a first color, which is the target display color of the first pixel, equivalent to preferentially displaying the color of the background image in the target image.

[0059] At the same time, in order to prevent interference from residual potential in the upper electrode (common electrode) or the lower electrode (pixel electrode), the voltage of other display areas (second pixels) except the first pixel is set to the same voltage state as the first pixel through the sixth sub-driving waveform to drive the second pixel to display the first color.

[0060] In addition, the fifth driving duration of the fifth sub-driving waveform must ensure that the pixel electrode corresponding to the background is fully charged, so that the first color displayed on the background screen meets the color expectations and can fully display the background color, reducing or eliminating the possibility of incomplete background display and blurred display, and ensuring that the first pixels corresponding to the background are all displayed normally. By preferentially displaying the color of the background screen, the interference and coverage of the image color on the background color can be reduced, and the interference of subsequent driving can be controlled within a range that does not affect the user experience. In addition, the fifth sub-driving waveform and the sixth sub-driving waveform can enable the display panel to display an extreme optical display state without impurities.

[0061] S2: driving the second pixel to display a second color.

[0062] Specifically, the driving voltage of the first pixel is set to a power-off state through the seventh sub-driving waveform, and the second pixel is driven to display the second color through the eighth sub-driving waveform.

[0063] The seventh sub-driving waveform is specifically used to power off the pixel electrode corresponding to the first pixel. According to the principle of electrophoretic display, in the power-off state, the first pixel is fixedly displayed in the first color and no longer changes color.

[0064] The eighth sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the second pixel to drive the second pixel so that the second pixel is displayed in the second color, which is equivalent to driving only the particles of the second pixel, and the first pixel is in a power-off state.

[0065] The image in the target screen is displayed without causing any diffusion that affects the user experience.

[0066] In addition, by controlling the eighth driving duration corresponding to the eighth sub-driving waveform, it is ensured that the display effect of the display area where the second pixel is located can have full and clear edges without affecting the background display effect too much, and the eighth driving duration cannot be too long to avoid the problem of hypertrophy of the displayed image.

[0067] In addition, the voltage for driving the particles of the first color to move to the upper layer and the voltage for driving the particles of the second color to move to the upper layer are two opposite voltages.

[0068] Specifically, a positive voltage drives particles of the first color to move to the upper layer, and a negative voltage drives particles of the second color to move to the upper layer; a negative voltage drives particles of the first color to move to the lower layer, and a positive voltage drives particles of the second color to move to the lower layer.

[0069] Alternatively, a negative voltage drives particles of the first color to move to the upper layer, and a positive voltage drives particles of the second color to move to the upper layer; a positive voltage drives particles of the first color to move to the lower layer, and a negative voltage drives particles of the second color to move to the lower layer.

[0070] The driving method of the electrophoretic display proposed in this embodiment first drives the first pixel and the second pixel of the electrophoretic display to display the first color to achieve an extreme optical display state, provides initial energy for the electrophoretic display and enables all particles to reach a unified initial state, and at the same time can preferentially display the background in the target picture and set the second pixel corresponding to the image in the target picture to the same voltage as the background, thereby reducing the diffusion and interference of the image pixels on the background picture and preventing interference of residual potential between the pixel electrode and the common electrode. Finally, the background picture is powered off to display the image pixels as the corresponding second color, and the pixel diffusion and interference are suppressed by the time the electric field is applied to the image pixels, thereby reducing the possibility of image blurring, reduced sharpness, and poor display effect, so that the edges of the presented image are clear and the colors are saturated, thereby achieving the purpose of providing a display effect.

[0071] Example 2

[0072] Figure 3 FIG. 1 is a flow chart of a driving method of an electrophoretic display in another embodiment of the present application; Figure 3 The driving method of the electrophoretic display includes the following steps S01, S1 and S2.

[0073] S01: driving the first pixel to display the second color, and driving the second pixel to display the first color.

[0074] Specifically, the first pixel is driven to display the second color by the third sub-driving waveform, and the second pixel is driven to display the first color by the fourth sub-driving waveform, wherein the target display color of the first pixel in the target picture is the first color, and the target display color of the second pixel is the second color. The first color and the second color are two different colors, and the first color and the second color can be any two different colors such as yellow, black, red, and white.

[0075] The third sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the first pixel to drive the first pixel so that the first pixel is displayed in the second color.

[0076] The fourth sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the second pixel to drive the second pixel so that the second pixel is displayed in the first color, wherein the target display color of the second pixel in the target picture is the second color, and the first color is different from the second color.

[0077] Step S01 is equivalent to displaying the target image on the display panel in an inverted display mode, so as to check whether the initial startup energy is sufficient.

[0078] If the initial startup energy is insufficient, problems such as blurred fonts or images, incomplete image display, poor display of the first color and / or the second color, and failure to achieve the expected color effect may occur.

[0079] During the production debugging process, whether the display of the electrophoretic display is normal can be judged by the display effect in step S01, and then it can be determined whether the electrophoretic display is adjusted so that the electrophoretic display can display a clear reverse display image.

[0080] S1: Drive the first pixel and the second pixel to display the first color, wherein the first pixel is a pixel corresponding to the background picture in the target picture, and the second pixel is a pixel corresponding to the image picture in the target picture; the first color is the target display color of the background picture, and the second color is the target display color of the image picture.

[0081] Specifically, the first pixel is driven to display the first color by the fifth sub-driving waveform, and the second pixel is driven to display the first color by the sixth sub-driving waveform.

[0082] The fifth sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the first pixel to drive the first pixel so that the first pixel is displayed in a first color, which is the target display color of the first pixel, equivalent to preferentially displaying the color of the background image in the target image.

[0083] At the same time, in order to prevent interference from residual potential in the upper electrode (common electrode) or the lower electrode (pixel electrode), the voltage of other display areas (second pixels) except the first pixel is set to the same voltage state as the first pixel through the sixth sub-driving waveform to drive the second pixel to display the first color.

[0084] In addition, the fifth driving duration of the fifth sub-driving waveform must ensure that the pixel electrode corresponding to the background is fully charged, so that the first color displayed on the background screen meets the color expectations and can fully display the background color, reducing or eliminating the possibility of incomplete background display and blurred display, and ensuring that the first pixels corresponding to the background are all displayed normally. By preferentially displaying the color of the background screen, the interference and coverage of the image color on the background color can be reduced, and the interference of subsequent driving can be controlled within a range that does not affect the user experience. In addition, the fifth sub-driving waveform and the sixth sub-driving waveform can enable the display panel to display an extreme optical display state without impurities.

[0085] S2: driving the second pixel to display a second color.

[0086] Specifically, the driving voltage of the first pixel is set to a power-off state through the seventh sub-driving waveform, and the second pixel is driven to display the second color through the eighth sub-driving waveform.

[0087] The seventh sub-driving waveform is specifically used to power off the pixel electrode corresponding to the first pixel. According to the principle of electrophoretic display, in the power-off state, the first pixel is fixedly displayed in the first color and no longer changes color.

[0088] The eighth sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the second pixel to drive the second pixel so that the second pixel is displayed in the second color, which is equivalent to driving only the particles of the second pixel, and the first pixel is in a power-off state.

[0089] The image in the target screen is displayed without causing any diffusion that affects the user experience.

[0090] In addition, by controlling the eighth driving duration corresponding to the eighth sub-driving waveform, it is ensured that the display effect of the display area where the second pixel is located can have full and clear edges without affecting the background display effect too much, and the eighth driving duration cannot be too long to avoid the problem of hypertrophy of the displayed image.

[0091] In addition, the voltage for driving the particles of the first color to move to the upper layer and the voltage for driving the particles of the second color to move to the upper layer are two opposite voltages.

[0092] Specifically, a positive voltage drives particles of the first color to move to the upper layer, and a negative voltage drives particles of the second color to move to the upper layer; a negative voltage drives particles of the first color to move to the lower layer, and a positive voltage drives particles of the second color to move to the lower layer.

[0093] Alternatively, a negative voltage drives particles of the first color to move to the upper layer, and a positive voltage drives particles of the second color to move to the upper layer; a positive voltage drives particles of the first color to move to the lower layer, and a negative voltage drives particles of the second color to move to the lower layer.

[0094] This embodiment first checks whether the initial startup energy is sufficient through reverse display, and then drives the first pixel and the second pixel of the electrophoretic display to display the first color to achieve an extreme optical display state, provide initial energy for the electrophoretic display and make all particles reach a unified initial state. At the same time, the background in the target picture can be displayed preferentially and the second pixel corresponding to the image in the target picture is set to the same voltage as the background, thereby reducing the diffusion and interference of the image pixels on the background picture and preventing the interference of residual potential between the pixel electrode and the common electrode. Finally, the background picture is powered off and the image picture is displayed as the corresponding second color. The time of applying the electric field to the image pixels suppresses pixel diffusion and interference, thereby reducing the possibility of image blurring, reduced sharpness and poor display effect, so that the presented image has clear edges and rich colors, thereby achieving the purpose of providing a display effect.

[0095] Example 3

[0096] Figure 4 FIG. 1 is a flow chart of a driving method of an electrophoretic display in another embodiment of the present application; Figure 4 The driving method of the electrophoretic display includes the following steps S011, S01, S1 and S2.

[0097] S011: driving the first pixel and the second pixel to display the second color, or driving the first pixel and the second pixel to display the first color.

[0098] Specifically, the first pixel is driven by the first sub-driving waveform, and the second pixel is driven by the second sub-driving waveform, so that the first pixel and the second pixel are both driven to display an extreme optical display color, wherein the first pixel is a pixel corresponding to the background image in the target image, and the second pixel is a pixel corresponding to the image image in the target image, and the extreme optical display color is the first color or the second color. The first color and the second color are two different colors, and the first color and the second color can be any two different colors such as yellow, black, red, and white.

[0099] The target picture is the picture that is finally displayed on the electrophoretic display. The target picture includes an image picture and a background picture, and the colors of the image picture and the background picture are different. The first pixel is the pixel corresponding to the background picture in the target picture on the display panel, and the second pixel is the pixel corresponding to the image picture in the target picture on the display panel. Both the first pixel and the second pixel may be 0, 1 or more, which is specifically determined according to the target picture. In the display picture after the drive is completed, all the first pixels constitute the background, and all the second pixels constitute the image picture.

[0100] During the driving process of the electrophoretic display, the first pixel and the second pixel may change to display different colors, but after the driving is successful, the first pixel and the second pixel will finally display the corresponding target display color according to the requirements of the target screen.

[0101] The first sub-driving waveform is specifically used to provide a voltage to a pixel electrode corresponding to the first pixel to drive the first pixel, so that the first pixel displays an extreme optical display color.

[0102] The second sub-driving waveform is specifically used to provide a voltage to a pixel electrode corresponding to the second pixel to drive the second pixel, so that the second pixel displays an extreme optical display color.

[0103] The first pixel and the second pixel share a common electrode, and a voltage between the pixel electrode and the common electrode forms a voltage difference (electric field) so that particles corresponding to the pixel move.

[0104] The extreme optical display color means that all pixels display the same color, that is, particles of the same color swim to the same layer. For example, if the extreme optical display color is black, then all black particles in the microcapsules 5 swim to the upper layer and white particles swim to the lower layer, and the electrophoretic display is displayed in full black. If the extreme optical display color is white, then all black particles in the microcapsules 5 swim to the lower layer and white particles swim to the upper layer, and the electrophoretic display is displayed in full white.

[0105] The display panel is displayed with an extreme optical display effect in order to provide the electrophoretic display with initial startup energy, so that the internal particles reach the maximum extreme state, and all particles reach a unified initial state, so as to facilitate the subsequent particle migration to present the target image. In addition, whether the particle state is normal can be determined by whether the initial state is consistent. During the production and debugging process, the electrophoretic display can be adjusted in time when abnormal particles are found in the extreme optical display state, so that the first stage of step S011 displays a completely black state, ensuring that the electrophoretic display functions normally after leaving the factory.

[0106] S01: driving the first pixel to display the second color, and driving the second pixel to display the first color.

[0107] Specifically, the first pixel is driven to display the second color by the third sub-driving waveform, and the second pixel is driven to display the first color by the fourth sub-driving waveform, wherein in the target picture, the target display color of the first pixel is the first color, and the target display color of the second pixel is the second color.

[0108] The third sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the first pixel to drive the first pixel so that the first pixel is displayed in the second color.

[0109] The fourth sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the second pixel to drive the second pixel so that the second pixel is displayed in the first color, wherein the target display color of the second pixel in the target picture is the second color, and the first color is different from the second color.

[0110] Step S01 is equivalent to displaying the target image on the display panel in an inverted display mode, so as to check whether the initial startup energy is sufficient.

[0111] If the initial startup energy is insufficient, problems such as blurred fonts or images, incomplete image display, poor display of the first color and / or the second color, and failure to achieve the expected color effect may occur.

[0112] During the production debugging process, whether the display of the electrophoretic display is normal can be judged by the display effect in step S01, and then it can be determined whether the electrophoretic display is adjusted so that the electrophoretic display can display a clear reverse display image.

[0113] S1: Drive the first pixel and the second pixel to display the first color, wherein the first pixel is a pixel corresponding to the background picture in the target picture, and the second pixel is a pixel corresponding to the image picture in the target picture; the first color is the target display color of the background picture, and the second color is the target display color of the image picture.

[0114] Specifically, the first pixel is driven to display the first color by the fifth sub-driving waveform, and the second pixel is driven to display the first color by the sixth sub-driving waveform.

[0115] The fifth sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the first pixel to drive the first pixel so that the first pixel is displayed in a first color, which is the target display color of the first pixel, equivalent to preferentially displaying the color of the background image in the target image.

[0116] At the same time, in order to prevent interference from residual potential in the upper electrode (common electrode) or the lower electrode (pixel electrode), the voltage of other display areas (second pixels) except the first pixel is set to the same voltage state as the first pixel through the sixth sub-driving waveform to drive the second pixel to display the first color.

[0117] In addition, the fifth driving duration of the fifth sub-driving waveform must ensure that the pixel electrode corresponding to the background is fully charged, so that the first color displayed on the background screen meets the color expectations and can fully display the background color, reducing or eliminating the possibility of incomplete background display and blurred display, and ensuring that the first pixels corresponding to the background are all displayed normally. By preferentially displaying the color of the background screen, the interference and coverage of the image color on the background color can be reduced, and the interference of subsequent driving can be controlled within a range that does not affect the user experience. In addition, the fifth sub-driving waveform and the sixth sub-driving waveform can enable the display panel to display an extreme optical display state without impurities.

[0118] S2: driving the second pixel to display a second color.

[0119] Specifically, the driving voltage of the first pixel is set to a power-off state through the seventh sub-driving waveform, and the second pixel is driven to display the second color through the eighth sub-driving waveform.

[0120] The seventh sub-driving waveform is specifically used to power off the pixel electrode corresponding to the first pixel. According to the principle of electrophoretic display, in the power-off state, the first pixel is fixedly displayed in the first color and no longer changes color.

[0121] The eighth sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the second pixel to drive the second pixel so that the second pixel is displayed in the second color, which is equivalent to driving only the particles of the second pixel, and the first pixel is in a power-off state.

[0122] The image in the target screen is displayed without causing any diffusion that affects the user experience.

[0123] In addition, by controlling the eighth driving duration corresponding to the eighth sub-driving waveform, it is ensured that the display effect of the display area where the second pixel is located can have full and clear edges without affecting the background display effect too much, and the eighth driving duration cannot be too long to avoid the problem of hypertrophy of the displayed image.

[0124] In addition, the voltage for driving the particles of the first color to move to the upper layer and the voltage for driving the particles of the second color to move to the upper layer are two opposite voltages.

[0125] Specifically, a positive voltage drives particles of the first color to move to the upper layer, and a negative voltage drives particles of the second color to move to the upper layer; a negative voltage drives particles of the first color to move to the lower layer, and a positive voltage drives particles of the second color to move to the lower layer.

[0126] Alternatively, a negative voltage drives particles of the first color to move to the upper layer, and a positive voltage drives particles of the second color to move to the upper layer; a positive voltage drives particles of the first color to move to the lower layer, and a negative voltage drives particles of the second color to move to the lower layer.

[0127] This embodiment first drives the electrophoretic display to display extreme optical display colors, provides initial energy for the electrophoretic display and enables all particles to reach a unified initial state, then checks whether the initial startup energy is sufficient through reverse display, and then gives priority to displaying the background in the target picture and setting the second pixel corresponding to the image in the target picture to the same voltage as the background, thereby reducing the diffusion and interference of the image pixels on the background picture and preventing interference of residual potential between the pixel electrode and the common electrode. Finally, the background picture is powered off and the image pixels are displayed as the corresponding target display colors. The time for applying an electric field to the image pixels suppresses pixel diffusion and interference, thereby reducing the possibility of image blurring, reduced sharpness, and poor display effects, so that the edges of the presented image are clear and the colors are rich, thereby achieving the purpose of providing a display effect.

[0128] Example 1:

[0129] The principle of this embodiment is described by taking the target screen as a black image with a white background, using a positive voltage to drive black particles to move to the upper layer, using a negative voltage to drive white particles to move to the upper layer, and the extreme optical display color being black as an example:

[0130] During step S011, a positive voltage is applied to the pixel electrode corresponding to the first pixel through the first sub-driving waveform, and a positive voltage is applied to the pixel electrode corresponding to the second pixel through the second sub-driving waveform. At this time, the black particles corresponding to the first pixel and the second pixel are moved to the upper layer, and the white particles are moved to the lower layer. At this time, the display panel is displayed in full black.

[0131] During step S01, a positive voltage is applied to the pixel electrode corresponding to the first pixel through the third sub-driving waveform, so that the black particles corresponding to the first pixel are still in the upper layer and the white particles are still in the lower layer, and the display area where the first pixel is located still displays black; a negative voltage is applied to the pixel electrode corresponding to the second pixel through the fourth sub-driving waveform, so that the black particles corresponding to the second pixel move to the lower layer and the white particles move to the upper layer, and the display area where the second pixel is located changes from black to white.

[0132] During step S1, a negative voltage is applied to the pixel electrode corresponding to the first pixel through the fifth sub-driving waveform, so that the black particles corresponding to the first pixel move to the lower layer and the white particles move to the upper layer, and the display area where the first pixel is located changes from black to white; a negative voltage is applied to the pixel electrode corresponding to the second pixel through the sixth sub-driving waveform, so that the black particles corresponding to the second pixel are still in the lower layer and the white particles are still in the upper layer, and the display area where the second pixel is located still displays white.

[0133] During step S2, the driving voltage of the pixel electrode corresponding to the first pixel is set to a power-off state (the voltage of the pixel electrode is the same as the voltage of the common electrode) through the seventh sub-driving waveform, so that the black particles corresponding to the first pixel are still in the lower layer and the white particles are still in the upper layer, and the display area where the first pixel is located still displays white; a positive voltage is applied to the pixel electrode corresponding to the second pixel through the eighth sub-driving waveform, so that the black particles corresponding to the second pixel move to the upper layer and the white particles move to the lower layer, and the display area where the second pixel is located changes from white to black.

[0134] Step S2 is completed, and the display panel finally displays a target image composed of a white background and a black image.

[0135] Specifically, the first sub-driving waveform, the third sub-driving waveform, the fifth sub-driving waveform, and the seventh sub-driving waveform all belong to a section of the first driving waveform, wherein the first driving waveform is a driving waveform of a pixel electrode corresponding to a background pixel. The second sub-driving waveform, the fourth sub-driving waveform, the sixth sub-driving waveform, and the eighth sub-driving waveform all belong to a section of the second driving waveform, wherein the second driving waveform is a driving waveform of a pixel electrode corresponding to an image pixel.

[0136] Example 2:

[0137] The principle of this embodiment is described by taking the target screen as a black image with a white background, using a positive voltage to drive black particles to move to the upper layer, using a negative voltage to drive white particles to move to the upper layer, and the extreme optical display color being white as an example:

[0138] During step S011, a negative voltage is applied to the pixel electrode corresponding to the first pixel through the first sub-driving waveform, and a negative voltage is applied to the pixel electrode corresponding to the second pixel through the second sub-driving waveform. At this time, the black particles corresponding to the first pixel and the second pixel are moved to the lower layer, and the white particles are moved to the upper layer. At this time, the display panel is displayed in full white.

[0139] During step S01, a positive voltage is applied to the pixel electrode corresponding to the first pixel through the third sub-driving waveform, so that the black particles corresponding to the first pixel move to the upper layer and the white particles move to the lower layer, and the display area where the first pixel is located changes from white to black; a negative voltage is applied to the pixel electrode corresponding to the second pixel through the fourth sub-driving waveform, so that the black particles corresponding to the second pixel are still in the lower layer and the white particles are still in the upper layer, and the display area where the second pixel is located still displays white.

[0140] During step S1, a negative voltage is applied to the pixel electrode corresponding to the first pixel through the fifth sub-driving waveform, so that the black particles corresponding to the first pixel move to the lower layer and the white particles move to the upper layer, and the display area where the first pixel is located changes from black to white; a negative voltage is applied to the pixel electrode corresponding to the second pixel through the sixth sub-driving waveform, so that the black particles corresponding to the second pixel are still in the lower layer and the white particles are still in the upper layer, and the display area where the second pixel is located still displays white.

[0141] During step S2, the driving voltage of the pixel electrode corresponding to the first pixel is set to a power-off state (the voltage of the pixel electrode is the same as the voltage of the common electrode) through the seventh sub-driving waveform, so that the black particles corresponding to the first pixel are still in the lower layer and the white particles are still in the upper layer, and the display area where the first pixel is located still displays white; a positive voltage is applied to the pixel electrode corresponding to the second pixel through the eighth sub-driving waveform, so that the black particles corresponding to the second pixel move to the upper layer and the white particles move to the lower layer, and the display area where the second pixel is located changes from white to black.

[0142] Step S2 is completed, and the display panel finally displays a target image composed of a white background and a black image.

[0143] Example 3:

[0144] The principle of this embodiment is described by taking the target screen as a white image with a black background, using a positive voltage to drive black particles to move to the upper layer, using a negative voltage to drive white particles to move to the upper layer, and the extreme optical display color as black as an example:

[0145] During step S011, a positive voltage is applied to the pixel electrode corresponding to the first pixel through the first sub-driving waveform, and a positive voltage is applied to the pixel electrode corresponding to the second pixel through the second sub-driving waveform. At this time, the black particles corresponding to the first pixel and the second pixel are moved to the upper layer, and the white particles are moved to the lower layer. At this time, the display panel is displayed in full black.

[0146] During step S01, a negative voltage is applied to the pixel electrode corresponding to the first pixel through the third sub-driving waveform, so that the black particles corresponding to the first pixel move to the lower layer and the white particles move to the upper layer, and the display area where the first pixel is located changes from black to white; a positive voltage is applied to the pixel electrode corresponding to the second pixel through the fourth sub-driving waveform, so that the black particles corresponding to the second pixel are still in the upper layer and the white particles are still in the lower layer, and the display area where the second pixel is located still displays black.

[0147] During step S1, a positive voltage is applied to the pixel electrode corresponding to the first pixel through the fifth sub-driving waveform, so that the black particles corresponding to the first pixel move to the upper layer and the white particles move to the lower layer, and the display area where the first pixel is located changes from white to black; a positive voltage is applied to the pixel electrode corresponding to the second pixel through the sixth sub-driving waveform, so that the black particles corresponding to the second pixel are still in the upper layer and the white particles are still in the lower layer, and the display area where the second pixel is located still displays black.

[0148] During step S2, the driving voltage of the pixel electrode corresponding to the first pixel is set to a power-off state (the voltage of the pixel electrode is the same as the voltage of the common electrode) through the seventh sub-driving waveform, so that the black particles corresponding to the first pixel are still in the upper layer and the white particles are still in the lower layer, and the display area where the first pixel is located still displays black; a negative voltage is applied to the pixel electrode corresponding to the second pixel through the eighth sub-driving waveform, so that the black particles corresponding to the second pixel move to the lower layer and the white particles move to the upper layer, and the display area where the second pixel is located changes from black to white.

[0149] Step S2 is completed, and the display panel finally displays a target picture composed of a black background and a white image.

[0150] This embodiment first drives the electrophoretic display to display extreme optical display colors, provides initial energy for the electrophoretic display and enables all particles to reach a unified initial state, then checks whether the initial startup energy is sufficient through reverse display, and then gives priority to displaying the background in the target picture and setting the second pixel corresponding to the image in the target picture to the same voltage as the background, thereby reducing the diffusion and interference of the image pixels on the background picture and preventing interference of residual potential between the pixel electrode and the common electrode. Finally, the background picture is powered off and the image pixels are displayed as the corresponding target display colors. The time for applying an electric field to the image pixels suppresses pixel diffusion and interference, thereby reducing the possibility of image blurring, reduced sharpness, and poor display effects, so that the edges of the presented image are clear and the colors are rich, thereby achieving the purpose of providing a display effect.

[0151] Example 4

[0152] Figure 5FIG. 1 is a flow chart of a driving method of an electrophoretic display in another embodiment of the present application. Figure 5 The driving method of the electrophoretic display includes the following steps S01, S021, S1, and S2.

[0153] S01: driving the first pixel to display the second color, and driving the second pixel to display the first color.

[0154] Specifically, the first pixel is driven to display the second color by the first sub-driving waveform, and the second pixel is driven to display the first color by the second sub-driving waveform, wherein the first pixel is a pixel corresponding to the background picture in the target picture, and the second pixel is a pixel corresponding to the image pixel in the target picture, and the target display color of the first pixel in the target picture is the first color, and the target display color of the second pixel is the second color.

[0155] The target picture is the picture that is finally displayed on the electrophoretic display. The target picture includes an image and a background, and the colors of the image and the background are different. The first pixel is the pixel corresponding to the background picture in the target picture on the display panel, and the second pixel is the pixel corresponding to the image pixel in the target picture on the display panel. Both the first pixel and the second pixel may be 0, 1 or more, which is determined according to the target picture. In the display picture after the drive is completed, all the first pixels constitute the background, and all the second pixels constitute the image.

[0156] During the driving process of the electrophoretic display, the first pixel and the second pixel may change to display different colors, but after the driving is successful, the first pixel and the second pixel will finally display the corresponding target display color according to the requirements of the target screen.

[0157] The first sub-driving waveform is specifically used to provide a voltage to a pixel electrode corresponding to a first pixel to drive the first pixel so that the first pixel is displayed in a second color, wherein the target display color of the first pixel in the target image is the first color, and the second color is different from the first color.

[0158] The second sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the second pixel to drive the second pixel so that the second pixel is displayed in the first color, wherein the target display color of the second pixel in the target image is the second color, and the first color is different from the second color.

[0159] The first pixel and the second pixel share a common electrode, and a voltage between the pixel electrode and the common electrode forms a voltage difference (electric field) so that particles corresponding to the pixel move.

[0160] Step S01 is equivalent to displaying the target image on the display panel in reverse display mode. The electrophoretic display is displayed in a reverse display state that is completely opposite to the target image to check whether the particles can move normally and whether the particle color meets expectations. If there are problems with the particles, there will be problems such as blurred fonts or images, incomplete image display, poor display effects of the first color and / or the second color that do not meet the expected color effects, etc.

[0161] During the production debugging process, it is possible to judge whether the display of the electrophoretic display is normal based on the display effect of the first stage in step S01, and then determine whether to perform maintenance.

[0162] S021: driving the first pixel and the second pixel to display a second color.

[0163] Specifically, The first pixel is driven by the third sub-driving waveform and the second pixel is driven by the fourth sub-driving waveform, so that both the first pixel and the second pixel are driven to display a first extreme optical display color, wherein the first extreme optical display color is the second color.

[0164] The third sub-driving waveform is specifically used to provide a voltage to a pixel electrode corresponding to the first pixel to drive the first pixel, so that the first pixel displays a first extreme optical display color.

[0165] The fourth sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the second pixel to drive the second pixel so that the second pixel displays a first extreme optical display color. The first extreme optical display color is a second color, which is different from the target display color of the first pixel.

[0166] The extreme optical display color means that all pixels display the same color, that is, particles of the same color swim to the same layer. For example, if the extreme optical display color is black, then all black particles in the microcapsules 5 swim to the upper layer and white particles swim to the lower layer, and the electrophoretic display is displayed in full black. If the extreme optical display color is white, then all black particles in the microcapsules 5 swim to the lower layer and white particles swim to the upper layer, and the electrophoretic display is displayed in full white.

[0167] The extreme optical display effect is displayed on the display panel to provide initial startup energy for the electrophoretic display, so that the internal particles reach the maximum extreme state and all particles reach a unified initial state, which is convenient for subsequent particle migration to present the target image. In addition, whether the initial state is consistent can determine whether the particle state is normal. During the production and debugging process, the electrophoretic display can be repaired in time when abnormal particles are found in the extreme optical display state, ensuring that the electrophoretic display functions normally after leaving the factory.

[0168] S1: Drive the first pixel and the second pixel to display the first color, wherein the first pixel is a pixel corresponding to the background picture in the target picture, and the second pixel is a pixel corresponding to the image picture in the target picture; the first color is the target display color of the background picture, and the second color is the target display color of the image picture.

[0169] Specifically, the first pixel is driven by the fifth sub-driving waveform and the second pixel is driven by the sixth sub-driving waveform, so that both the first pixel and the second pixel are driven to display the second extreme optical display color, wherein the second extreme optical display color is the first color.

[0170] The fifth sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the first pixel to drive the first pixel, so that the first pixel displays the second extreme optical display color.

[0171] The sixth sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the second pixel to drive the second pixel so that the second pixel displays a second extreme optical display color. The second extreme optical display color is the first color, which is the same as the target display color of the first pixel.

[0172] This embodiment is equivalent to giving priority to displaying the color of the background picture in the target picture.

[0173] At the same time, in order to prevent interference from residual potential in the upper electrode (common electrode) or the lower electrode (pixel electrode), the voltage of other display areas (second pixels) except the first pixel is set to the same voltage state as the first pixel through the sixth sub-driving waveform, that is, they are all driven to display the first color.

[0174] In addition, the fifth driving duration of the fifth sub-driving waveform must ensure that the pixel electrode corresponding to the background is fully charged, so that the first color displayed by the background screen meets the color expectations and can fully display the background color, reducing or eliminating the possibility of incomplete or blurred background display, and ensuring that the first pixels corresponding to the background are all displayed normally. By giving priority to displaying the color of the background screen, the interference and coverage of the image color on the background color can be reduced, and the interference of subsequent driving can be controlled within a range that does not affect the user experience.

[0175] S2: driving the second pixel to display a second color.

[0176] Specifically, the driving voltage of the first pixel is set to a power-off state through the seventh sub-driving waveform, and the second pixel is driven to display the second color through the eighth sub-driving waveform.

[0177] The seventh sub-driving waveform is specifically used to power off the pixel electrode corresponding to the first pixel. According to the principle of electrophoretic display, in the power-off state, the first pixel is fixedly displayed in the first color and no longer changes color.

[0178] The eighth sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the second pixel to drive the second pixel so that the second pixel is displayed in the second color, which is equivalent to driving only the particles of the second pixel, and the first pixel is in a power-off state.

[0179] In addition, by controlling the eighth driving duration corresponding to the eighth sub-driving waveform, it is ensured that the display effect of the display area where the second pixel is located can have full and clear edges without affecting the background display effect too much, and the eighth driving duration cannot be too long to avoid the problem of hypertrophy of the displayed image.

[0180] In addition, the voltage for driving the particles of the first color to move to the upper layer and the voltage for driving the particles of the second color to move to the upper layer are two opposite voltages.

[0181] Specifically, a positive voltage drives particles of the first color to move to the upper layer, and a negative voltage drives particles of the second color to move to the upper layer; a negative voltage drives particles of the first color to move to the lower layer, and a positive voltage drives particles of the second color to move to the lower layer.

[0182] Alternatively, a negative voltage drives particles of the first color to move to the upper layer, and a positive voltage drives particles of the second color to move to the upper layer; a positive voltage drives particles of the first color to move to the lower layer, and a negative voltage drives particles of the second color to move to the lower layer.

[0183] Example 4:

[0184] The principle of this embodiment is described by taking the target screen as a black image with a white background, using a positive voltage to drive black particles to move to the upper layer, using a negative voltage to drive white particles to move to the upper layer, the first extreme optical display color is black, and the second extreme optical display color is white as an example:

[0185] During step S01, a positive voltage is applied to the pixel electrode corresponding to the first pixel through the first sub-driving waveform, and a negative voltage is applied to the pixel electrode corresponding to the second pixel through the second sub-driving waveform. At this time, the black particles corresponding to the first pixel are all moved to the upper layer, and the white particles are all moved to the lower layer. The display area where the first pixel is located displays black, and the black particles corresponding to the second pixel are moved to the lower layer and the white particles are moved to the upper layer. At this time, the area where the second pixel is located displays white.

[0186] During step S021, a positive voltage is applied to the pixel electrode corresponding to the first pixel through the third sub-driving waveform, so that the black particles corresponding to the first pixel are still in the upper layer and the white particles are still in the lower layer, and the display area where the first pixel is located still displays black; a positive voltage is applied to the pixel electrode corresponding to the second pixel through the fourth sub-driving waveform, so that the black particles corresponding to the second pixel move to the upper layer and the white particles move to the lower layer, and the display area where the second pixel is located changes from white to black.

[0187] During step S1, a negative voltage is applied to the pixel electrode corresponding to the first pixel through the fifth sub-driving waveform, so that the black particles corresponding to the first pixel move to the lower layer and the white particles move to the upper layer, and the display area where the first pixel is located changes from black to white; a negative voltage is applied to the pixel electrode corresponding to the second pixel through the sixth sub-driving waveform, so that the black particles corresponding to the second pixel move to the lower layer and the white particles move to the upper layer, and the display area where the second pixel is located changes from black to white.

[0188] During step S2, the driving voltage of the pixel electrode corresponding to the first pixel is set to a power-off state (the voltage of the pixel electrode is the same as the voltage of the common electrode) through the seventh sub-driving waveform, so that the black particles corresponding to the first pixel are still in the lower layer and the white particles are still in the upper layer, and the display area where the first pixel is located still displays white; a positive voltage is applied to the pixel electrode corresponding to the second pixel through the eighth sub-driving waveform, so that the black particles corresponding to the second pixel move to the upper layer and the white particles move to the lower layer, and the display area where the second pixel is located changes from white to black.

[0189] Step S2 is completed, and the display panel finally displays a target image composed of a white background and a black image.

[0190] This embodiment checks whether the particles of the electrophoretic display are normal through reverse display, and then drives the electrophoretic display to display the first extreme optical display color, provides initial energy for the electrophoretic display and makes all particles reach a unified initial state, and then drives the electrophoretic display to display the second extreme optical display color, so that the background in the target picture is displayed preferentially and the second pixel corresponding to the image in the target picture is set to the same voltage as the background, thereby reducing the diffusion and interference of the image pixels on the background picture, and preventing the interference of residual potential between the pixel electrode and the common electrode. Finally, the background picture is powered off to display the image pixels as the corresponding target display color, and the pixel diffusion and interference are suppressed by the time the electric field is applied to the image pixels, thereby reducing the possibility of image blurring, reduced sharpness, and poor display effect, so that the presented image has clear edges and rich colors, thereby achieving the purpose of providing a display effect.

[0191] Example 5

[0192] Figure 6 FIG. 1 is a flow chart of a driving method of an electrophoretic display in another embodiment of the present application. Figure 6 The driving method of the electrophoretic display comprises the following steps S01', S1 and S2.

[0193] S01 ′: driving the first pixel and the second pixel to display a second color.

[0194] Specifically, the first pixel is driven by the first sub-driving waveform and the second pixel is driven by the second sub-driving waveform, so that the first pixel and the second pixel are both driven to display the first extreme optical display color, wherein the first pixel is a pixel corresponding to the background picture in the target picture, and the second pixel is a pixel corresponding to the image pixel in the target picture, and the target display color of the first pixel in the target picture is the first color, the target display color of the second pixel is the second color, and the first extreme optical display color is the second color.

[0195] The target picture is the picture that is finally displayed on the electrophoretic display. The target picture includes an image and a background, and the colors of the image and the background are different. The first pixel is the pixel corresponding to the background picture in the target picture on the display panel, and the second pixel is the pixel corresponding to the image pixel in the target picture on the display panel. Both the first pixel and the second pixel may be 0, 1 or more, which is determined according to the target picture. In the display picture after the drive is completed, all the first pixels constitute the background, and all the second pixels constitute the image.

[0196] During the driving process of the electrophoretic display, the first pixel and the second pixel may change to display different colors, but after the driving is successful, the first pixel and the second pixel will finally display the corresponding target display color according to the requirements of the target screen.

[0197] The first sub-driving waveform is specifically used to provide a voltage to a pixel electrode corresponding to a first pixel to drive the first pixel, so that the first pixel displays a first extreme optical display color.

[0198] The second sub-driving waveform is specifically used to provide a voltage to a pixel electrode corresponding to the second pixel to drive the second pixel, so that the second pixel displays the first extreme optical display color.

[0199] The first pixel and the second pixel share a common electrode, and a voltage between the pixel electrode and the common electrode forms a voltage difference (electric field) so that particles corresponding to the pixel move.

[0200] The extreme optical display color means that all pixels display the same color, that is, particles of the same color swim to the same layer. For example, if the extreme optical display color is black, then all black particles in the microcapsules 5 swim to the upper layer and white particles swim to the lower layer, and the electrophoretic display is displayed in full black. If the extreme optical display color is white, then all black particles in the microcapsules 5 swim to the lower layer and white particles swim to the upper layer, and the electrophoretic display is displayed in full white.

[0201] In this embodiment, the first extreme optical display color is a second color, which is different from the target display color of the background.

[0202] The extreme optical display effect is displayed on the display panel to provide initial startup energy for the electrophoretic display, so that the internal particles reach the maximum extreme state and all particles reach a unified initial state, which is convenient for subsequent particle migration to present the target image. In addition, whether the initial state is consistent can determine whether the particle state is normal. During the production and debugging process, the electrophoretic display can be repaired in time when abnormal particles are found in the extreme optical display state, ensuring that the electrophoretic display functions normally after leaving the factory.

[0203] S1: driving the first pixel and the second pixel to display a first color.

[0204] Specifically, the first pixel is driven by the third sub-driving waveform and the second pixel is driven by the fourth sub-driving waveform, so that both the first pixel and the second pixel are driven to display the second extreme optical display color, wherein the second extreme optical display color is the first color.

[0205] The third sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the first pixel to drive the first pixel so that the first pixel is displayed in the second extreme optical display color, which is the first color and the same as the target display color of the first pixel.

[0206] The fourth sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the second pixel to drive the second pixel so that the second pixel is displayed in a second extreme optical display color, which is a first color and different from the target display color of the second pixel.

[0207] Step S1 is equivalent to allowing the electrophoretic display to display the background of the target picture first, but not the image of the target picture at the same time, so the second pixel is driven to display the first color. Finally, the entire display panel presents the second extreme optical display color.

[0208] At the same time, the voltage of other display areas (second pixels) except the first pixel is set to the same voltage state as the first pixel through the fourth sub-driving waveform, which can also prevent interference from residual potential in the upper electrode (common electrode) or the lower electrode (pixel electrode).

[0209] In addition, the third driving duration of the third sub-driving waveform must ensure that the pixel electrode corresponding to the background is fully charged, so that the first color displayed by the background screen meets the color expectations and can fully display the background color, reducing or eliminating the possibility of incomplete or blurred background display, and ensuring that the first pixels corresponding to the background are all displayed normally. By giving priority to displaying the color of the background screen, the interference and coverage of the image color on the background color can be reduced, and the interference of subsequent driving can be controlled within a range that does not affect the user experience.

[0210] S2: driving the second pixel to display a second color.

[0211] Specifically, the driving voltage of the first pixel is set to a power-off state through the fifth sub-driving waveform, and the second pixel is driven to display the second color through the sixth sub-driving waveform.

[0212] The fifth sub-driving waveform is specifically used to power off the pixel electrode corresponding to the first pixel. According to the principle of electrophoretic display, in the power-off state, the first pixel is fixedly displayed in the first color and no longer changes color.

[0213] The sixth sub-driving waveform is specifically used to provide a voltage to the pixel electrode corresponding to the second pixel to drive the second pixel so that the second pixel is displayed in the second color, which is equivalent to driving only the particles of the second pixel, and the first pixel is in a power-off state.

[0214] In addition, by controlling the sixth driving duration corresponding to the sixth sub-driving waveform, it is ensured that the display effect of the display area where the second pixel is located can have full and clear edges without affecting the background display effect too much, and the sixth driving duration cannot be too long to avoid the problem of hypertrophy of the displayed image.

[0215] In addition, the voltage for driving the particles of the first color to move to the upper layer and the voltage for driving the particles of the second color to move to the upper layer are two opposite voltages.

[0216] Specifically, a positive voltage drives particles of the first color to move to the upper layer, and a negative voltage drives particles of the second color to move to the upper layer; a negative voltage drives particles of the first color to move to the lower layer, and a positive voltage drives particles of the second color to move to the lower layer.

[0217] Alternatively, a negative voltage drives particles of the first color to move to the upper layer, and a positive voltage drives particles of the second color to move to the upper layer; a positive voltage drives particles of the first color to move to the lower layer, and a negative voltage drives particles of the second color to move to the lower layer.

[0218] Example 5:

[0219] The principle of this embodiment is described by taking the target screen as a black image with a white background, using a positive voltage to drive black particles to move to the upper layer, using a negative voltage to drive white particles to move to the upper layer, the first extreme optical display color is black, and the second extreme optical display color is white as an example:

[0220] During step S01', a positive voltage is applied to the pixel electrode corresponding to the first pixel through the first sub-driving waveform, and a positive voltage is applied to the pixel electrode corresponding to the second pixel through the second sub-driving waveform. At this time, the black particles corresponding to the first pixel and the second pixel are moved to the upper layer, and the white particles are moved to the lower layer. At this time, the display panel is displayed in full black.

[0221] During step S1, a negative voltage is applied to the pixel electrode corresponding to the first pixel through the third sub-driving waveform, so that the black particles corresponding to the first pixel move to the lower layer and the white particles move to the upper layer, and the display area where the first pixel is located changes from black to white; a negative voltage is applied to the pixel electrode corresponding to the second pixel through the fourth sub-driving waveform, so that the black particles corresponding to the second pixel move to the lower layer and the white particles move to the upper layer, and the display area where the second pixel is located changes from black to white.

[0222] During step S2, the driving voltage of the pixel electrode corresponding to the first pixel is set to a power-off state (the voltage of the pixel electrode is the same as the voltage of the common electrode) through the fifth sub-driving waveform, so that the black particles corresponding to the first pixel are still in the lower layer and the white particles are still in the upper layer, and the display area where the first pixel is located still displays white; a positive voltage is applied to the pixel electrode corresponding to the second pixel through the sixth sub-driving waveform, so that the black particles corresponding to the second pixel move to the upper layer and the white particles move to the lower layer, and the display area where the second pixel is located changes from white to black.

[0223] Step S2 is completed, and the display panel finally displays a target image composed of a white background and a black image.

[0224] Example 6:

[0225] The principle of this embodiment is described by taking the target screen as a white image with a black background, using a positive voltage to drive black particles to move to the upper layer, using a negative voltage to drive white particles to move to the upper layer, the first extreme optical display color is white, and the second extreme optical display color is black as an example:

[0226] During step S01', a negative voltage is applied to the pixel electrode corresponding to the first pixel through the first sub-driving waveform, and a negative voltage is applied to the pixel electrode corresponding to the second pixel through the second sub-driving waveform. At this time, the black particles corresponding to the first pixel and the second pixel are moved to the lower layer, and the white particles are moved to the upper layer. At this time, the display panel is fully white.

[0227] During step S1, a positive voltage is applied to the pixel electrode corresponding to the first pixel through the third sub-driving waveform, so that the black particles corresponding to the first pixel move to the upper layer and the white particles move to the lower layer, and the display area where the first pixel is located changes from white to black; a positive voltage is applied to the pixel electrode corresponding to the second pixel through the fourth sub-driving waveform, so that the black particles corresponding to the second pixel move to the upper layer and the white particles move to the lower layer, and the display area where the second pixel is located changes from white to black.

[0228] During step S2, the driving voltage of the pixel electrode corresponding to the first pixel is set to a power-off state (the voltage of the pixel electrode is the same as the voltage of the common electrode) through the fifth sub-driving waveform, so that the black particles corresponding to the first pixel are still in the upper layer and the white particles are still in the lower layer, and the display area where the first pixel is located still displays black; a negative voltage is applied to the pixel electrode corresponding to the second pixel through the sixth sub-driving waveform, so that the black particles corresponding to the second pixel move to the lower layer and the white particles move to the upper layer, and the display area where the second pixel is located changes from black to white.

[0229] Step S2 is completed, and the display panel finally displays a target picture composed of a black background and a white image.

[0230] In this embodiment, the electrophoretic display is first driven to display the first extreme optical display color, i.e., the second color, to provide initial energy for the electrophoretic display and enable all particles to reach a uniform initial state, and then the electrophoretic display is driven to display the second extreme optical display color, i.e., the first color, so that the background in the target picture is displayed preferentially and the second pixel corresponding to the image in the target picture is set to the same voltage as the background, thereby reducing the diffusion and interference of the image pixels on the background picture, and preventing the interference of residual potential between the pixel electrode and the common electrode. Finally, the background picture is powered off to display the image pixels as the corresponding target display color, and the diffusion and interference of the pixels are suppressed by the time the electric field is applied to the image pixels, thereby reducing the possibility of image blurring, reduced sharpness, and poor display effect, so that the edges of the presented image are clear and the colors are rich, thereby achieving the purpose of providing a display effect.

[0231] The positive voltage may be a voltage between +7V and +20V, for example, +15V, +16V, etc., but not limited thereto, and is specifically determined according to the material properties of the electrophoretic display.

[0232] The negative voltage may be a voltage between -7V and -20V, for example, -15V, -16V, etc., but not limited thereto, and is specifically determined according to the material properties of the electrophoretic display.

[0233] According to the basic principle of multiple pixel display, the present application applies positive voltage or negative voltage to the pixel electrode corresponding to each pixel through the sub-driving waveform successively, for example, from left to right or from right to left; from top to bottom or from bottom to top.

[0234] Example 6

[0235] In step S011 of embodiment 3, the first pixel is driven by the first sub-driving waveform to display the first color or the second color, and the second pixel is driven by the second sub-driving waveform to display the first color or the second color;

[0236] The driving method of the electrophoretic display further comprises the steps of:

[0237] S012 (not shown in the figure): judging whether the initial startup energy provided by the first sub-driving waveform and the second sub-driving waveform is sufficient according to the first display effect presented when the first pixel displays the second color and the second pixel displays the first color in step S01;

[0238] S013 (not shown in the figure): if the initial startup energy provided by the first sub-driving waveform and the second sub-driving waveform is insufficient, the first driving duration of the first sub-driving waveform and the second driving duration of the second sub-driving waveform are readjusted, and after the adjustment is completed, step S011 is re-executed until the initial startup energy provided by the first sub-driving waveform and the second sub-driving waveform is sufficient.

[0239] Specifically, the driving method of the electrophoretic display is specifically applied to a driving control module of the electrophoretic display, and the driving control module specifically includes an MCU module of the electrophoretic display.

[0240] The first display effect of step S01 is the reverse display effect of the target screen. If it is in the production debugging process, the production personnel can judge whether the initial startup energy in the first stage of step S011 is sufficient according to the first display effect, wherein sufficient initial startup energy can enable the electrophoretic display to reach an optimal startup state, sweep away the residual energy of the previous state of the product, so as to ensure that the product directly achieves an initialization effect. If the initial startup energy is insufficient, the initialization effect is not good, which will affect the subsequent driving effect, for example, there will be problems such as blurred fonts or images, incomplete image display, poor display effect of the first color and / or the second color, and failure to achieve the expected color effect.

[0241] The production staff adjusts the first driving time of the first sub-driving waveform and the second driving time of the second sub-driving waveform accordingly. The driving time determines whether the charging is sufficient, that is, whether the electric field energy is sufficient. If the driving time is not enough, the charging will be insufficient. If the charging is insufficient, the driving time can be appropriately extended to restart the electrophoretic display. That is, the first sub-driving waveform and the second sub-driving waveform with extended driving time are reused to restart the electrophoretic display to ensure sufficient charging. Avoid the image from being blurred and the display effect is reduced.

[0242] Of course, the control driving module can also automatically compare the standard display effect with the first display effect to determine whether the initial startup energy is sufficient. If the number of pixels where the first display effect and the standard display effect have differences in display effect exceeds a preset number, it means that the initial startup energy is insufficient, and the control driving module automatically adjusts the first driving duration of the first sub-driving waveform and the second driving duration of the second sub-driving waveform, wherein the preset number can be configured according to the actual application scenario.

[0243] In one embodiment, in Embodiment 3, in step S011, the first pixel is driven by the first sub-driving waveform to display the first color, and the second pixel is driven by the second sub-driving waveform to display the first color; or, in step S011, the first pixel is driven by the first sub-driving waveform to display the second color, and the second pixel is driven by the second sub-driving waveform to display the second color;

[0244] In step S01, the first pixel is driven by the third sub-driving waveform to display the second color, and the second pixel is driven by the fourth sub-driving waveform to display the first color;

[0245] In step S1, the first pixel is driven by the fifth sub-driving waveform to display the first color, and the second pixel is driven by the sixth sub-driving waveform to display the first color;

[0246] In step S2, the driving voltage of the first pixel is set to a power-off state by the seventh sub-driving waveform, and the second pixel is driven by the eighth sub-driving waveform to display a second color;

[0247] The first sub-driving waveform to the eighth sub-driving waveform all provide driving voltages for corresponding pixel electrodes.

[0248] Example 7

[0249] In Embodiment 3, if in the production debugging process, after step S2, the driving method of the electrophoretic display further includes the steps of:

[0250] S3: Determine whether the second display effect presented by the first pixel and the second pixel in step S2 satisfies a preset effect;

[0251] S4: If the second display effect does not meet the preset effect, readjust at least one of the first driving duration of the first sub-driving waveform, the second driving duration of the second sub-driving waveform, the third driving duration of the third sub-driving waveform, the fourth driving duration of the fourth sub-driving waveform, the fifth driving duration of the fifth sub-driving waveform, the sixth driving duration of the sixth sub-driving waveform, the seventh driving duration of the seventh sub-driving waveform, and the eighth driving duration of the eighth sub-driving waveform.

[0252] Specifically, during the production debugging process, the second display effect presented by the first pixel and the second pixel in step S2 is used to indicate whether the preset effect is met. If the preset effect is not met, the production personnel can be instructed to readjust at least one of the first driving duration of the first sub-driving waveform, the second driving duration of the second sub-driving waveform, the third driving duration of the third sub-driving waveform, the fourth driving duration of the fourth sub-driving waveform, the fifth driving duration of the fifth sub-driving waveform, the sixth driving duration of the sixth sub-driving waveform, the seventh driving duration of the seventh sub-driving waveform, and the eighth driving duration of the eighth sub-driving waveform.

[0253] During the production debugging process, in step S2, the actual contrast of the second display effect displayed in step S2 is detected by an instrument, and whether the second display effect meets the preset effect is determined based on the actual contrast and the standard contrast.

[0254] The driving duration of the waveform determines whether the display effect of the corresponding driven display area has full and clear edges and does not affect other display areas too much, and can also determine whether the displayed pattern effect is hypertrophic. Therefore, the computer can automatically execute or the production personnel can adjust at least one of the first driving duration, the second driving duration, the third driving duration, the fourth driving duration, the fifth driving duration, the sixth driving duration, the seventh driving duration and the eighth driving duration to adjust the screen contrast of the electrophoretic display until the preset effect is achieved. Avoid the image from becoming blurred and the display effect from being reduced.

[0255] Optionally, the eighth driving duration is adjusted so that the display effect of the image display area achieves a full and clear edge effect without affecting the background display effect too much. The eighth driving duration cannot be too long to avoid the problem of hypertrophy of the display pattern.

[0256] Optionally, the eighth driving duration, the first driving duration and the second driving duration are adjusted to ensure that the initial startup energy can make the electrophoretic display reach the best initialization state as much as possible, reduce the interference of residual energy in the previous state, and ensure that the display effect of the image display area has full and clear edges without affecting the background display effect too much. The eighth driving duration cannot be too long to avoid the problem of hypertrophy of the display pattern.

[0257] Optionally, the fifth driving duration is adjusted so that the driving duration of the background can ensure that the background electrode is fully charged, so that the display effect of the display area of ​​the background pixel achieves a full and clear edge effect, thereby reducing the diffusion and interference of the display color of the subsequent image pixels on the display color of the background pixels.

[0258] Optionally, the fifth driving duration, the first driving duration and the second driving duration are adjusted to ensure that the initial startup energy can enable the electrophoretic display to reach the optimal initialization state as much as possible, reduce the interference of residual energy in the previous state, and the background driving duration can ensure that the background electrode is fully charged, so that the display effect of the display area of ​​the background pixel achieves a full and clear edge effect, thereby reducing the diffusion and interference of the display color of the subsequent image pixels on the display color of the background pixels.

[0259] Optionally, the third driving duration and the fourth driving duration are adjusted so that the electrophoretic display displays a display effect completely opposite to the target picture, so as to check whether the initial startup energy is sufficient.

[0260] Example 8

[0261] In one embodiment, the first color is black and the second color is white.

[0262] Or, the first color is white and the second color is black.

[0263] Example 9

[0264] In one embodiment, in Embodiment 3, the first sub-driving waveform and the second sub-driving waveform are both first polarity voltage waveforms, or the first sub-driving waveform and the second sub-driving waveform are both second polarity voltage waveforms;

[0265] The third sub-driving waveform is a first polarity voltage waveform, and the fourth sub-driving waveform is a second polarity voltage waveform;

[0266] The fifth sub-driving waveform and the sixth sub-driving waveform are both second polarity voltage waveforms;

[0267] The seventh sub-driving waveform is the same as the voltage of the common electrode, and the eighth sub-driving waveform is a first polarity voltage waveform.

[0268] Specifically, the first polarity voltage waveform is a positive voltage waveform, and the second polarity voltage waveform is a negative voltage waveform; or, the first polarity voltage waveform is a negative voltage waveform, and the second polarity voltage waveform is a positive voltage waveform.

[0269] See Figure 7 , Figure 7 It is a waveform corresponding to a specific embodiment in Example 3. In this specific embodiment, step S011 first drives the first pixel and the second pixel to display the second color (the target display color of the image screen), step S01 drives the first pixel to display the second color and drives the second pixel to display the first color (inverted display), step S1 drives the first pixel and the second pixel to display the first color, and step S2 drives the second pixel to display the second color. Among them, a negative voltage is used to drive the particles of the first color to move to the upper layer, and a positive voltage is used to drive the particles of the second color to move to the upper layer. The first drive waveform is a waveform that drives the pixel electrode corresponding to the first pixel (background pixel), and the first pixel is the pixel corresponding to the background screen. The second drive waveform is a waveform that drives the pixel electrode corresponding to the second pixel (image pixel), and the second pixel is the pixel corresponding to the image screen. The third drive waveform is a waveform that drives the common electrode. The voltage of the third drive waveform is 0v or close to 0v.

[0270] In the first stage corresponding to step S011, the first drive waveform provides a first sub-drive waveform of a positive voltage, and the second drive waveform provides a second sub-drive waveform of a positive voltage. In the second stage corresponding to step S01, the first drive waveform provides a third sub-drive waveform of a positive voltage, and the second drive waveform provides a fourth sub-drive waveform of a negative voltage. In the third stage corresponding to step S1, the first drive waveform provides a fifth sub-drive waveform of a negative voltage, and the second drive waveform provides a sixth sub-drive waveform of a negative voltage. In the fourth stage corresponding to step S2, the first drive waveform provides a seventh sub-drive waveform of 0v or close to 0v, and the second drive waveform provides an eighth sub-drive waveform of a positive voltage.

[0271] Specifically, taking the target image as a black image with a white background as an example, white is the first color, black is the second color, a negative voltage is used to drive the white particles, and a positive voltage is used to drive the black particles. Figure 7 The waveform is as follows: first, a positive voltage is used to drive the first pixel and the second pixel to display black; then a positive voltage is used to drive the first pixel to keep displaying black, and a negative voltage is used to drive the second pixel to display white; a negative voltage is used to drive the first pixel and the second pixel to display white; a voltage of 0v or close to 0v is used to cut off the power to the first pixel, thereby keeping the first pixel white, and a positive voltage is used to drive the second pixel to display black, and finally a picture with a white background and a black image is obtained.

[0272] Specifically, taking the target image as a black background and a white image as an example, black is the first color, white is the second color, a negative voltage is used to drive the black particles, and a positive voltage is used to drive the white particles. Figure 7 The waveform is first driven by a positive voltage to drive the first pixel and the second pixel to display white; then the positive voltage is used to drive the first pixel to keep displaying white, and the negative voltage is used to drive the second pixel to display black; the negative voltage is used to drive the first pixel and the second pixel to display black; the voltage of 0v or close to 0v is used to cut off the power of the first pixel, so that the first pixel remains black, and the positive voltage is used to drive the second pixel to display white, and finally a picture of a white image with a black background is obtained.

[0273] Figure 7 The waveform diagram is only an exemplary example, and the present application does not limit this. The driving waveform of each embodiment may be different, which is determined by the polarity of the voltage driving particles of different colors and the driving steps included. The driving principles of other embodiments are similar to those of embodiment 3 and will not be repeated here.

[0274] Example 10

[0275] In one embodiment, the first driving duration of the first sub-driving waveform in Embodiment 3 is equal to the second driving duration of the second sub-driving waveform;

[0276] The third driving duration of the third sub-driving waveform is equal to the fourth driving duration of the fourth sub-driving waveform;

[0277] The fifth driving duration of the fifth sub-driving waveform is equal to the sixth driving duration of the sixth sub-driving waveform;

[0278] The seventh driving duration of the seventh sub-driving waveform is equal to the eighth driving duration of the eighth sub-driving waveform.

[0279] Specifically, in the same stage, the driving duration of the waveform controlling the first pixel is equal to the driving duration of the waveform controlling the second pixel. This ensures that in the same driving stage, the driving strengths of the first pixel and the second pixel are the same, making the display effect as consistent as possible, thereby improving the display effect.

[0280] Embodiment 11

[0281] In one embodiment, the first driving duration of the first sub-driving waveform in Embodiment 3 is equal to the third driving duration of the third sub-driving waveform, and both are 200-1000 ms.

[0282] Specifically, setting the driving time of step S011 and step S01 to 200-1000 ms can avoid hypertrophy of the displayed image.

[0283] Example 12

[0284] In one embodiment, the difference between the fifth driving duration and the seventh driving duration in Embodiment 3 is not less than one third of the fifth driving duration, and the fifth driving duration and the seventh driving duration are both 200-800 ms.

[0285] Specifically, the driving time is related to the materials and performance used in the electrophoretic display. The materials used in this embodiment need to ensure that the difference between the fifth driving time and the seventh driving time is not less than one-third of the fifth driving time, so as to ensure that the display effect of the display area where the second pixel is located has a full and clear edge and does not affect the background display effect where the first pixel is located too much. The driving time is set to 200-800ms to avoid hypertrophy of the displayed image. For example, the fifth driving time is 400ms and the seventh driving time is 700ms.

[0286] The present application realizes the best display effect of the electrophoretic display, solves the problems of blurred images, reduced sharpness, and poor display effects that affect consumer experience.

[0287] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0288] The meaning of "first" and "second" in the above modules / units is only to distinguish different modules / units, and is not used to define which module / unit has a higher priority or other limiting meanings. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or modules is not necessarily limited to those steps or modules clearly listed, but may include other steps or modules that are not clearly listed or inherent to these processes, methods, products or devices. The division of modules in this application is only a logical division, and there may be other division methods when implemented in actual applications.

[0289] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, device, article or method including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, device, article or method. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, device, article or method including the element.

[0290] The serial numbers of the embodiments of the present application are for description only and do not represent the advantages and disadvantages of the embodiments. Through the description of the above implementation modes, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases the former is a better implementation mode.

[0291] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A driving method of an electrophoretic display, characterized in that: The method comprises the steps of: S1: driving the first pixel and the second pixel to display a first color; S2: driving the second pixel to display a second color; The first pixel is a pixel corresponding to the background picture in the target picture, and the second pixel is a pixel corresponding to the image picture in the target picture; the first color is the target display color of the background picture, and the second color is the target display color of the image picture; Before step S1, the method further comprises the following steps: S01: driving the first pixel to display the second color, and driving the second pixel to display the first color; Before step S01, the method further includes step S011: driving the first pixel and the second pixel to display the second color, or driving the first pixel and the second pixel to display the first color; In step S011, the first pixel is driven by the first sub-driving waveform to display the first color, and the second pixel is driven by the second sub-driving waveform to display the first color; or, in step S011, the first pixel is driven by the first sub-driving waveform to display the second color, and the second pixel is driven by the second sub-driving waveform to display the second color; The method further comprises the steps of: S012: judging whether the initial startup energy provided by the first sub-driving waveform and the second sub-driving waveform is sufficient according to the first display effect presented when the first pixel displays the second color and the second pixel displays the first color in step S01; S013: if the initial startup energy provided by the first sub-driving waveform and the second sub-driving waveform is insufficient, readjusting the first driving duration of the first sub-driving waveform and the second driving duration of the second sub-driving waveform, and re-performing step S011 after the adjustment is completed, until the initial startup energy provided by the first sub-driving waveform and the second sub-driving waveform is sufficient; The initial startup energy is the energy required for the electrophoretic display to reach a startup state.

2. The driving method of the electrophoretic display according to claim 1, characterized in that: In step S011, the first pixel is driven by a first sub-driving waveform to display the first color, and the second pixel is driven by a second sub-driving waveform to display the first color; Or, in step S011, the first pixel is driven by a first sub-driving waveform to display the second color, and the second pixel is driven by a second sub-driving waveform to display the second color; In step S01, the first pixel is driven by the third sub-driving waveform to display the second color, and the second pixel is driven by the fourth sub-driving waveform to display the first color; In step S1, the first pixel is driven by the fifth sub-driving waveform to display the first color, and the second pixel is driven by the sixth sub-driving waveform to display the first color; In step S2, the driving voltage of the first pixel is set to a power-off state by the seventh sub-driving waveform, and the second pixel is driven by the eighth sub-driving waveform to display the second color; Wherein, the first to eighth sub-driving waveforms all provide driving voltages for corresponding pixel electrodes.

3. The driving method of the electrophoretic display according to claim 2, characterized in that: If it is in the production debugging process, then after step S2, the method further includes the steps of: S3: Determine whether the second display effect presented by the first pixel and the second pixel in step S2 satisfies a preset effect; S4: If the second display effect does not meet the preset effect, readjust at least one of the first driving duration of the first sub-driving waveform, the second driving duration of the second sub-driving waveform, the third driving duration of the third sub-driving waveform, the fourth driving duration of the fourth sub-driving waveform, the fifth driving duration of the fifth sub-driving waveform, the sixth driving duration of the sixth sub-driving waveform, the seventh driving duration of the seventh sub-driving waveform, and the eighth driving duration of the eighth sub-driving waveform.

4. The driving method of an electrophoretic display according to claim 1, characterized in that: The first color is black, the second color is white, or, The first color is white, and the second color is black.

5. The driving method of the electrophoretic display according to claim 2, characterized in that: The first sub-driving waveform and the second sub-driving waveform are both first polarity voltage waveforms, or the first sub-driving waveform and the second sub-driving waveform are both second polarity voltage waveforms; The third sub-driving waveform is a first polarity voltage waveform, and the fourth sub-driving waveform is a second polarity voltage waveform; The fifth sub-driving waveform and the sixth sub-driving waveform are both second polarity voltage waveforms; The seventh sub-driving waveform is the same as the voltage of the common electrode, and the eighth sub-driving waveform is a first polarity voltage waveform.

6. The method according to claim 2, characterized in that A first driving duration of the first sub-driving waveform is equal to a second driving duration of the second sub-driving waveform; The third driving duration of the third sub-driving waveform is equal to the fourth driving duration of the fourth sub-driving waveform; The fifth driving duration of the fifth sub-driving waveform is equal to the sixth driving duration of the sixth sub-driving waveform; The seventh driving duration of the seventh sub-driving waveform is equal to the eighth driving duration of the eighth sub-driving waveform.

7. The method according to claim 6, characterized in that The first driving duration of the first sub-driving waveform is equal to the third driving duration of the third sub-driving waveform, and both are 200-1000 ms.

8. The method according to claim 6, characterized in that The difference between the fifth driving duration and the seventh driving duration is not less than one third of the fifth driving duration, and the fifth driving duration and the seventh driving duration are both 200-800 ms.

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