Electrophoretic display and method of driving the same
By designing specific drive waveforms during the display and power-off periods of the electrophoretic display, including multiple drive voltages during the transition period and a power-off waveform at the zero-volt end point, the problem of color difference lines caused by instantaneous power outages in the electrophoretic display was solved, achieving a stable display effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TRANSCEND OPTRONICS (YANGZHOU) CO LTD
- Filing Date
- 2024-11-28
- Publication Date
- 2026-05-29
Smart Images
Figure CN122116816A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of display technology, and in particular to an electrophoretic display and its driving method. Background Technology
[0002] With the advancement of technology, electrophoretic displays are widely used in various display applications and electronic devices. Electrophoretic displays comprise multiple microcup structures or microcapsules. They are driven by a circuit that continuously applies a driving waveform (such as...) Figure 1 The drive waveform during the display period T1 is shown. Figure 1 This diagram shows the signal waveforms driving electrophoretic particles in an existing electrophoretic display. The dashed lines represent the signal waveforms driving black electrophoretic particles, and the solid lines represent the signal waveforms driving red electrophoretic particles. The horizontal axis represents time (in milliseconds), and the vertical axis represents time (in volts). An electric field is used to drive multiple electrophoretic particles within a microcup structure or microcapsule to move up and down, causing externally incident light to be reflected or absorbed, thus displaying the image. To reduce power consumption, the electrophoretic display immediately shuts off power at the moment the driving waveform ends (e.g., ...). Figure 1 The drive waveform during the power-off period T2 is shown.
[0003] However, based on the characteristics of the electrophoretic particles and driving circuit of the electrophoretic display, the driving waveform of a momentary power outage may generate irregular stray voltages. Under the influence of stray voltages, some electrophoretic particles will change their original direction of movement, causing the electrophoretic display to show lines with color differences.
[0004] Therefore, how to provide an electrophoretic display and its driving method that avoids displaying color difference lines due to momentary power outages is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention
[0005] This application provides an electrophoretic display and its driving method, which can solve the problem that existing electrophoretic displays exhibit color difference lines due to momentary power outages in order to reduce power loss.
[0006] To solve the above-mentioned technical problems, this application is implemented as follows: This application provides an electrophoretic display, which includes a display panel and a driving circuit. The display panel includes multiple electrophoretic particles, and the driving circuit is coupled to the display panel. The driving circuit is used to drive the multiple electrophoretic particles through a display waveform during display, causing the display panel to display the colors of the driven electrophoretic particles; during a transition period, the multiple electrophoretic particles are pushed to the display side of the display panel through N driving voltages; during a power-off period, the multiple electrophoretic particles are driven through a power-off waveform to complete the color display of the display panel; wherein the transition period is located between the display period and the power-off period, the voltage at the end of the power-off waveform is zero volts, and N is a positive integer greater than or equal to 6.
[0007] This application provides a driving method for an electrophoretic display. The electrophoretic display includes a display panel and a driving circuit. The display panel includes multiple electrophoretic particles, and the driving circuit is coupled to the display panel. The driving method includes: during a display period, the driving circuit drives the multiple electrophoretic particles through a display waveform, causing the display panel to display the colors of the driven multiple electrophoretic particles; during a transition period, the driving circuit pushes the multiple electrophoretic particles to the display side of the display panel through N driving voltages, wherein the transition period is located after the display period, and N is a positive integer greater than or equal to 6; and during a power-off period, the driving circuit drives the multiple electrophoretic particles through a power-off waveform to complete the color display of the display panel, wherein the power-off period is located after the transition period, and the voltage at the end point of the power-off waveform is zero volts.
[0008] In the electrophoretic display and its driving method of this application embodiment, by providing at least six driving voltages during the transition period and a power-off waveform with a zero-volt voltage at the waveform end point during the power-off period, the driving waveform design can effectively eliminate the problem of electrophoretic particles in the electrophoretic display changing their original movement direction due to stray voltage under the influence of the existing driving waveform for instantaneous power-off, thus preventing the electrophoretic display from displaying lines with color differences. Furthermore, the electrophoretic display of this application embodiment does not require any modification to the hardware; the problem of lines with color differences in the electrophoretic display can be solved simply by using the driving waveform design of this application for instantaneous power-off (i.e., the driving waveform design during the transition period and the power-off period). Attached Figure Description
[0009] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are configured to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 The signal waveform diagram for driving electrophoretic particles in an existing electrophoresis display; Figure 2 This is a block diagram of an embodiment of the electrophoretic display according to this application; Figure 3 for Figure 2 A schematic diagram of an embodiment of the display panel; Figure 4 for Figure 2 A schematic diagram of another embodiment of the display panel; Figure 5 The above is a waveform diagram of the signal driving black electrophoretic particles and red electrophoretic particles according to an embodiment of the electrophoretic display of this application; and Figure 6 This is a flowchart of an embodiment of the driving method for an electrophoretic display according to this application. Detailed Implementation
[0010] The embodiments of the present invention will be described below with reference to the accompanying drawings. In these drawings, the same reference numerals denote the same or similar components or method flows.
[0011] It must be understood that the use of terms such as "comprising" or "including" in this specification is configured to indicate the presence of specific technical features, values, method steps, work processes, and / or components, but does not preclude the addition of more technical features, values, method steps, work processes, components, or any combination thereof.
[0012] It is important to understand that when a component is described as "connected" or "coupled" to another component, it can be a direct connection or coupling to other components, and there may be intermediate components. Conversely, when a component is described as "directly connected" or "directly coupled" to another component, there are no intermediate components.
[0013] Furthermore, although the terms “first,” “second,” etc. are used in this document to describe different components, these terms are only used to distinguish components or operations described using the same technical terms.
[0014] Please see Figure 2 and Figure 3 , Figure 2 This is a block diagram of an embodiment of the electrophoretic display according to this application. Figure 3 for Figure 2 A schematic diagram of an embodiment of the display panel. (See attached diagram.) Figure 2 and Figure 3As shown, the electrophoretic display 100 includes a display panel 110 and a driving circuit 120, with the driving circuit 120 coupled to the display panel 110. In this embodiment, the electrophoretic display 100 is a color electrophoretic display; the display panel 110 may be a microcapsule electrophoresis panel, and the display panel 110 may include multiple pixels, and the multiple pixels respectively correspond to multiple microcapsules 112 arranged in an array. Each microcapsule 112 includes multiple electrophoretic particles of different colors, and the multiple electrophoretic particles may include multiple black electrophoretic particles 54 and multiple red electrophoretic particles 56; the driving circuit 120 drives the multiple black electrophoretic particles 54 and multiple red electrophoretic particles 56 included in each microcapsule 112 to move by applying voltage. It should be noted that the plurality of electrophoretic particles may also include a plurality of yellow electrophoretic particles and a plurality of white electrophoretic particles. Since the stray voltage is a negative voltage and the yellow and white electrophoretic particles are negatively charged, the stray voltage has little effect on the imaging of the yellow and white electrophoretic particles. Therefore, this application does not discuss the yellow and white electrophoretic particles and their driving waveforms.
[0015] It should be noted that, in order to avoid Figure 3 The diagram is too complex; only... Figure 3 Three microcapsules 112 are drawn in the display panel 110. Each microcapsule 112 contains only three black electrophoretic particles 54 and three red electrophoretic particles 56. The actual number of microcapsules 112 included in the display panel 110 and the actual number of black electrophoretic particles 54 and red electrophoretic particles 56 included in each microcapsule 112 can be adjusted according to actual requirements. Furthermore, when the display panel 110 is changed to a microcup electrophoresis panel, [the following can be added]: Figure 3 The microcapsule 112 is changed to a microcup structure 113, such as Figure 4 As shown, Figure 4 for Figure 2 A schematic diagram of another embodiment of the display panel.
[0016] Please see Figure 3 In this embodiment, the display panel 110 includes not only a plurality of microcapsules 112, but also an upper electrode layer 114 and a driving substrate 116. The plurality of microcapsules 112 are disposed between the upper electrode layer 114 and the driving substrate 116 (i.e., the driving substrate 116 is disposed below the plurality of electrophoretic particles), and the display side of the microcapsules 112 is close to the upper electrode layer 114. The upper electrode layer 114 may be a transparent electrode layer. The driving substrate 116 may include a plurality of driving transistors (not shown) to receive signals from the driving circuit 120 to drive the plurality of black electrophoretic particles 54 and the plurality of red electrophoretic particles 56 to move within the microcapsules 112 (i.e., the driving circuit 120 is coupled to the driving substrate 116 to drive the display panel 110).
[0017] Please see below Figure 2 and Figure 3 and respectively paired Figure 5 Each waveform used to drive the black electrophoretic particle 54 and the red electrophoretic particle 56 is described separately, wherein... Figure 5 This is a waveform diagram of the signals driving black and red electrophoretic particles according to an embodiment of the electrophoretic display of this application. The dashed line represents the signal waveform driving the black electrophoretic particles, and the solid line represents the signal waveform driving the red electrophoretic particles. The horizontal axis represents time in milliseconds, and the vertical axis represents time in volts. It should be noted that... Figure 5 The electrophoretic display 100 drives the signal waveforms of black electrophoretic particles 54 and red electrophoretic particles 56 in one embodiment during the display phase. The display phase sequentially includes a display period T1', a transition period T2', and a power-off period T3' (i.e., the transition period T2' is located between the display period T1' and the power-off period T3'). During the display period T1', the current frame is displayed according to the display requirements. During the transition period T2', the black electrophoretic particles 54 and red electrophoretic particles 56 are gradually pushed to the display side of the display panel 110. During the power-off period T3', the black electrophoretic particles 54 and red electrophoretic particles 56 are adjusted to complete the color display of the display panel 110, so that the electrophoretic display 100 will not have lines with color difference.
[0018] During the display period T1', the driving circuit 120 provides a display waveform to the driving substrate 116 to drive the plurality of electrophoretic particles (i.e., the plurality of black electrophoretic particles 54 and the plurality of red electrophoretic particles 56 within the microcapsules 112). In other words, the driving circuit 120 drives the plurality of electrophoretic particles according to display requirements via the display waveform. Therefore, the driving circuit 120 enables the display panel 110 to display colors corresponding to the driven plurality of black electrophoretic particles 54 and the plurality of red electrophoretic particles 56 during the display period T1'.
[0019] During the transition period T2', the driving circuit 120 provides N driving voltages to the driving substrate 116 to push the plurality of electrophoretic particles (i.e., the plurality of black electrophoretic particles 54 and the plurality of red electrophoretic particles 56 within the microcapsules 112) to the display side of the display panel 110, where N is a positive integer greater than or equal to 6. In other words, the driving circuit 120 gradually pushes the plurality of black electrophoretic particles 54 and the plurality of red electrophoretic particles 56 to the display side of the display panel 110 using the N driving voltages during the transition period T2'. Figure 1 The driving waveforms of the black and red electrophoretic particles during the power-off period T2 (i.e., using a long period of positive voltage to directly drive the black and red electrophoretic particles). Figure 5During the transition period T2', multiple positive short pulses are used to gradually push multiple black electrophoretic particles 54 and multiple red electrophoretic particles 56 to the top layer of the display panel 110. This approach will allow the pushed multiple black electrophoretic particles 54 and multiple red electrophoretic particles 56 to move to the top layer of the display panel 110 more quickly, thereby reducing the impact on the subsequent power-off period T3' (details to follow).
[0020] In one embodiment, during the transition period T2', the driving circuit 120 can push a plurality of black electrophoretic particles 54 to the display side of the display panel 110 through N first positive voltage pulses, and can push a plurality of red electrophoretic particles 56 to the display side of the display panel 110 through N second positive voltage pulses, wherein the pulse voltage of the first positive voltage pulse is greater than the pulse voltage of the second positive voltage pulse.
[0021] In one embodiment, the timing of the N first positive voltage pulses driven by the driving circuit 120 to the plurality of black electrophoretic particles 54 is not synchronized with the timing of the N second positive voltage pulses driven by the driving circuit 120 to the plurality of red electrophoretic particles 56. For example, as Figure 5 As shown in the waveform during the transition period T2', the driving circuit 120 begins to provide the N first positive voltage pulses that drive the plurality of black electrophoretic particles 54 at a first time point t1 after the display period T1', and the driving circuit 120 begins to provide the N second positive voltage pulses that drive the plurality of red electrophoretic particles 56 at a second time point t2 after the display period T1', wherein the second time point t2 is later than the first time point t1.
[0022] In one embodiment, the time interval between adjacent first positive voltage pulses is greater than the time interval between adjacent second positive voltage pulses. For example, such as Figure 5 As shown in the waveform during the transition period T2', the driving circuit 120 provides the N first positive voltage pulses that drive the plurality of black electrophoretic particles 54 at a first time point t1 with a first time interval Ts1, and the driving circuit 120 provides the N second positive voltage pulses that drive the plurality of red electrophoretic particles 56 at a second time interval Ts2 at a second time point t2, wherein the first time interval Ts1 is greater than the second time interval Ts2.
[0023] Please see Figure 5Tables 1 and 2 below show the luminance (L*) and hue (a*, b*) values of black and red obtained after the driving circuit drives multiple black electrophoretic particles 54 and multiple red electrophoretic particles 56 with different numbers of driving voltages. Since the desired luminance value for black is 9 (lower is better), the desired a* value for black is 5 (lower is better), the desired luminance value for red is 25 (closer to 25 is better), and the desired a* value for red is 40 (higher is better), but the final result must consider both the luminance and a* values of black and red, it can be seen from Tables 1 and 2 that the optimal optical values for black and red are obtained when the driving voltage is applied six times.
[0024] Table 1. Brightness and Hue Values of Black
[0025] Table 2. Brightness and Hue Values of Red
[0026] During the power-off period T3', the driving circuit 120 provides a power-off waveform to the driving substrate 116 to drive the plurality of electrophoretic particles (i.e., the plurality of black electrophoretic particles 54 and the plurality of red electrophoretic particles 56 within the microcapsules 112) to complete the color display of the display panel 110, wherein the voltage at the end of the power-off waveform is zero volts. In other words, during the power-off period T3', the driving circuit 120 drives the plurality of black electrophoretic particles 54 and the plurality of red electrophoretic particles 56 through the power-off waveform to complete the color display of the display panel 110 in advance, so that the display panel 110 will not have lines with color difference.
[0027] In addition, although the multiple black electrophoretic particles 54 and multiple red electrophoretic particles 56 will fall down during the power-off period T3' because the voltage at the end of the power-off waveform is zero volts, since the multiple black electrophoretic particles 54 and multiple red electrophoretic particles 56 have been pushed to the top layer of the display panel 110 during the transition period T2', it can still be ensured that the screen color of the display panel 110 after the power-off period T3' can reach the expected value.
[0028] In one embodiment, during the power-off period T3', the driving circuit 120 can drive the plurality of electrophoretic particles (i.e., the plurality of black electrophoretic particles 54 and the plurality of red electrophoretic particles 56 within the microcapsule 112) via the power-off waveform including a positive voltage pulse, wherein the pulse width of the positive voltage pulse is greater than the duration of a single driving voltage applied by the driving circuit 120 to the plurality of electrophoretic particles during the transition period T2'. For example, as Figure 5As shown in the waveforms during the transition period T2' and the power-off period T3', the power-off waveform driving the black electrophoretic particle 54 includes only one positive voltage pulse, and the pulse width of the positive voltage pulse included in the power-off waveform driving the black electrophoretic particle 54 is greater than the pulse width of a first positive voltage pulse driving the black electrophoretic particle 54 during the transition period T2'; the power-off waveform driving the red electrophoretic particle 56 includes only one positive voltage pulse, and the pulse width of the positive voltage pulse included in the power-off waveform driving the red electrophoretic particle 56 is greater than the pulse width of a second positive voltage pulse driving the red electrophoretic particle 56 during the transition period T2'.
[0029] Please see Figure 6 This is a flowchart of an embodiment of the driving method for an electrophoretic display according to this application. For ease of explanation, Figure 6 The driving method of the electrophoretic display will be combined with Figure 2 and Figure 3 Electrophoresis display 100 and Figure 5 The signal waveforms used to drive the black electrophoretic particles 54 and the red electrophoretic particles 56 are explained. For example... Figure 6 As shown, the driving method of the electrophoretic display includes the following steps: during the display period T1', the driving circuit 120 drives multiple electrophoretic particles through a display waveform, so that the display panel 110 displays the colors of the multiple electrophoretic particles after driving (step 210); during the transition period T2', the driving circuit 120 pushes the multiple electrophoretic particles to the display side of the display panel 110 through N driving voltages, where N is a positive integer greater than or equal to 6 (step 220); and during the power-off period T3', the driving circuit 120 drives the multiple electrophoretic particles through a power-off waveform to complete the color display of the display panel 110, where the voltage at the end of the power-off waveform is zero volts (step 230).
[0030] Therefore, by providing at least six driving voltages in step 220 and providing a power-off waveform with a zero-volt voltage at the waveform end point in step 230, the problem of the electrophoretic particles in the electrophoretic display 100 changing their original direction of movement due to stray voltages caused by the existing momentary power-off driving waveform can be effectively eliminated. For detailed explanation, please refer to the relevant descriptions in the above embodiments; they will not be repeated here.
[0031] In one embodiment, the plurality of electrophoretic particles includes: a plurality of black electrophoretic particles 54 and a plurality of red electrophoretic particles 56, see [link to relevant documentation]. Figure 5Step 220 may include: the driving circuit 120 pushing a plurality of black electrophoretic particles 54 to the display side of the display panel 110 through N first positive voltage pulses; and the driving circuit 120 pushing a plurality of red electrophoretic particles 56 to the display side of the display panel 110 through N second positive voltage pulses, wherein the pulse voltage of the first positive voltage pulse is greater than the pulse voltage of the second positive voltage pulse. For detailed descriptions, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.
[0032] In one embodiment, the plurality of electrophoretic particles includes: a plurality of black electrophoretic particles 54 and a plurality of red electrophoretic particles 56; in step 220, the timing of the driving circuit 120 driving the N first positive voltage pulses of the plurality of black electrophoretic particles 54 is asynchronous with the timing of the driving circuit 120 driving the N second positive voltage pulses of the plurality of red electrophoretic particles 56 (e.g., Figure 5 (As shown). For detailed explanations, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.
[0033] In one embodiment, the plurality of electrophoretic particles includes: a plurality of black electrophoretic particles 54 and a plurality of red electrophoretic particles 56; in step 220, the time interval between adjacent first positive voltage pulses is greater than the time interval between adjacent second positive voltage pulses (e.g., Figure 5 (As shown). For detailed explanations, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.
[0034] In one embodiment, step 230 may include: the driving circuit 120 driving the plurality of electrophoretic particles through the power-off waveform including a positive voltage pulse, wherein the pulse width of the positive voltage pulse is greater than the duration of the driving voltage that drives the plurality of electrophoretic particles during the transition period T2' (e.g., Figure 5 (As shown). For detailed explanations, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.
[0035] In summary, the electrophoretic display and its driving method of this application, by providing at least six driving voltages during the transition period and a power-off waveform with a zero-volt voltage at the waveform end point during the power-off period, effectively eliminates the problem of electrophoretic particles in the electrophoretic display changing their original direction of movement due to stray voltages caused by the existing instantaneous power-off driving waveform. This prevents the electrophoretic display from displaying lines with color differences. Furthermore, the electrophoretic display of this application does not require any modification to the hardware; the problem of lines with color differences in the electrophoretic display can be solved simply by using the driving waveform design of this application that addresses instantaneous power-off (i.e., the driving waveform design during the transition and power-off periods).
[0036] While the present invention has been described using the above embodiments, it should be noted that these descriptions are not intended to limit the invention. Rather, this invention encompasses modifications and similar arrangements that will be obvious to those skilled in the art. Therefore, the scope of the claims should be interpreted in the broadest possible sense to include all obvious modifications and similar arrangements.
Claims
1. An electrophoretic display, characterized in that, include: The display panel includes multiple electrophoretic particles; as well as A driving circuit, coupled to the display panel, is used to drive the plurality of electrophoretic particles through a display waveform during the display period, so that the display panel displays the color of the plurality of electrophoretic particles after driving; during the transition period, the plurality of electrophoretic particles are pushed to the display side of the display panel through N driving voltages; during the power-off period, the plurality of electrophoretic particles are driven through a power-off waveform to complete the color display of the display panel; wherein, the transition period is located between the display period and the power-off period, the voltage at the end point of the power-off waveform is zero volts, and N is a positive integer greater than or equal to 6.
2. The electrophoretic display according to claim 1, characterized in that, The plurality of electrophoretic particles include a plurality of black electrophoretic particles and a plurality of red electrophoretic particles; during the transition period, the driving circuit pushes the plurality of black electrophoretic particles to the display side of the display panel through N first positive voltage pulses, and pushes the plurality of red electrophoretic particles to the display side of the display panel through N second positive voltage pulses, wherein the pulse voltage of the first positive voltage pulse is greater than the pulse voltage of the second positive voltage pulse.
3. The electrophoretic display according to claim 1, characterized in that, The plurality of electrophoretic particles includes a plurality of black electrophoretic particles and a plurality of red electrophoretic particles; during the transition period, the driving circuit pushes the plurality of black electrophoretic particles to the display side of the display panel through N first positive voltage pulses, and pushes the plurality of red electrophoretic particles to the display side of the display panel through N second positive voltage pulses, wherein the timing of the N first positive voltage pulses pushing the plurality of black electrophoretic particles by the driving circuit is not synchronized with the timing of the N second positive voltage pulses pushing the plurality of red electrophoretic particles.
4. The electrophoretic display according to claim 1, characterized in that, The plurality of electrophoretic particles include a plurality of black electrophoretic particles and a plurality of red electrophoretic particles; during the transition period, the driving circuit pushes the plurality of black electrophoretic particles to the display side of the display panel through N first positive voltage pulses, and pushes the plurality of red electrophoretic particles to the display side of the display panel through N second positive voltage pulses, wherein the time interval between adjacent first positive voltage pulses is greater than the time interval between adjacent second positive voltage pulses.
5. The electrophoretic display according to claim 1, characterized in that, During the power-off period, the driving circuit drives the plurality of electrophoretic particles through the power-off waveform including a positive voltage pulse, wherein the pulse width of the positive voltage pulse is greater than the duration of one driving voltage that the driving circuit uses to drive the plurality of electrophoretic particles during the transition period.
6. A driving method for an electrophoretic display, characterized in that, The electrophoretic display includes a display panel and a driving circuit. The display panel includes a plurality of electrophoretic particles, and the driving circuit is coupled to the display panel. The driving method includes: Step A: During the display period, the driving circuit drives the plurality of electrophoretic particles by displaying a waveform, so that the display panel displays the color of the plurality of electrophoretic particles after being driven; Step B: The driving circuit pushes the plurality of electrophoretic particles to the display side of the display panel through N driving voltages during the transition period, wherein the transition period is after the display period, and N is a positive integer greater than or equal to 6; and Step C: During the power-off period, the driving circuit drives the plurality of electrophoretic particles to complete the color display of the display panel through a power-off waveform, wherein the power-off period is after the transition period, and the voltage at the end point of the power-off waveform is zero volts.
7. The driving method for the electrophoretic display according to claim 6, characterized in that, The plurality of electrophoretic particles includes a plurality of black electrophoretic particles and a plurality of red electrophoretic particles; step B includes: The driving circuit pushes the plurality of black electrophoretic particles to the display side of the display panel through N first positive voltage pulses; and The driving circuit pushes the plurality of red electrophoretic particles to the display side of the display panel through N second positive voltage pulses, wherein the pulse voltage of the first positive voltage pulse is greater than the pulse voltage of the second positive voltage pulse.
8. The driving method for the electrophoretic display according to claim 6, characterized in that, The plurality of electrophoretic particles includes a plurality of black electrophoretic particles and a plurality of red electrophoretic particles; step B includes: The driving circuit pushes the plurality of black electrophoretic particles to the display side of the display panel through N first positive voltage pulses; and The driving circuit pushes the plurality of red electrophoretic particles to the display side of the display panel through N second positive voltage pulses, wherein the timing of the N first positive voltage pulses that drive the plurality of black electrophoretic particles is not synchronized with the timing of the N second positive voltage pulses that drive the plurality of red electrophoretic particles.
9. The driving method for an electrophoretic display according to claim 6, characterized in that, The plurality of electrophoretic particles includes a plurality of black electrophoretic particles and a plurality of red electrophoretic particles; step B includes: The driving circuit pushes the plurality of black electrophoretic particles to the display side of the display panel through N first positive voltage pulses; and The driving circuit pushes the plurality of red electrophoretic particles to the display side of the display panel through N second positive voltage pulses, wherein the time interval between adjacent first positive voltage pulses is greater than the time interval between adjacent second positive voltage pulses.
10. The driving method for an electrophoretic display according to claim 6, characterized in that, Step C includes: The driving circuit drives the plurality of electrophoretic particles through the off-voltage waveform including a positive voltage pulse, wherein the pulse width of the positive voltage pulse is greater than the duration of one driving voltage that the driving circuit uses to drive the plurality of electrophoretic particles during the transition period.