CN116129817A - Electrowetting display driving method and display - Google Patents
Electrowetting display driving method and display Download PDFInfo
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- CN116129817A CN116129817A CN202211617047.3A CN202211617047A CN116129817A CN 116129817 A CN116129817 A CN 116129817A CN 202211617047 A CN202211617047 A CN 202211617047A CN 116129817 A CN116129817 A CN 116129817A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/348—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on the deformation of a fluid drop, e.g. electrowetting
Abstract
The invention discloses an electrowetting display driving method and a display, wherein the electrowetting display driving method comprises the following steps: providing a driving signal; the driving signal comprises a charge capturing stage, an oil film splitting inhibiting stage and a driving stage which are used for realizing the driving process; in the charge trapping stage, the driving signal provides a first driving voltage to eliminate charges trapped by the hydrophobic insulating layer; in the oil film splitting suppression stage, the driving signal provides a second driving voltage to improve the response speed of the color oil film and suppress the color oil film splitting; wherein the second driving voltage is a rising conversion voltage; in the driving stage, the driving signal provides a third driving voltage to make the brightness of the electrowetting display be the target brightness. The invention reduces the influence of charge trapping, improves the aperture ratio, and can inhibit oil film splitting while improving the response speed of a color oil film.
Description
Technical Field
The invention relates to the technical field of electrowetting display, in particular to an electrowetting display driving method and a display.
Background
The electrowetting display is an electronic paper display device with high response speed, low energy consumption and wide viewing angle. The electrowetting display mainly comprises an upper polar plate, a glass substrate, indium tin oxide, a hydrophobic dielectric layer, a pixel wall, a color oil film and a conductive liquid. When no voltage is applied, the electrowetting display is in an equilibrium state, a continuous spreading film is formed between the hydrophobic dielectric layer and the conductive liquid by the color oil film, the pixel displays the color of the color ink, and the pixel is in an off state. When a certain voltage is applied between the upper polar plate and the glass substrate, the wettability of the color oil film on the hydrophobic dielectric layer is changed, the color oil film moves and contracts to separate from the surface of the hydrophobic dielectric layer, most of reflected light can be reflected after directly passing through the conductive liquid, and only a small part of the reflected light can not be reflected through the color oil film, so that the color of the substrate is white, and the pixel is in an on state.
Wherein the ratio of the white area to the pixel area in a single pixel is called the aperture ratio, wherein the aperture ratio is proportional to the driving voltage. The conventional waveform of the driving voltage generally adopts a Pulse Width Modulation (PWM) waveform, but has the problems of low aperture ratio and split color oil film.
Accordingly, the prior art is still in need of improvement and development.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention is directed to an electrowetting display driving method and a display, so as to solve the problems of low aperture opening ratio and split color oil film in the conventional electrowetting display driving method.
The technical scheme of the invention is as follows:
an electrowetting display driving method, comprising:
providing a driving signal; the driving signal comprises a charge capturing stage, an oil film splitting inhibiting stage and a driving stage which are used for realizing the driving process;
in the charge trapping stage, the driving signal provides a first driving voltage to eliminate charges trapped by the hydrophobic insulating layer;
in the oil film splitting suppression stage, the driving signal provides a second driving voltage to improve the response speed of the color oil film and suppress the color oil film splitting; wherein the second driving voltage is a rising conversion voltage;
in the driving stage, the driving signal provides a third driving voltage to make the brightness of the electrowetting display be the target brightness.
According to a further arrangement of the invention, the driving process of the driving signal further comprises an overdrive phase; in the overdrive phase, the drive signal provides a fourth drive voltage to increase the response speed of the color oil film.
The invention further provides that the oil film splitting inhibition stage comprises an exponential rise stage and a quadratic function rise stage;
in the exponential rising phase, the second driving voltage increases the response speed of the color oil film in an exponential rising trend;
in the quadratic function rising stage, the second driving voltage rises in a quadratic function rising trend to improve the response speed of the color oil film.
According to a further arrangement of the invention, the second drive voltage is between zero and the fourth drive voltage.
In the further arrangement of the invention, in the index rising stage, if the rising trend of the voltage curve is slower, the response speed of the color oil film is slower, the splitting degree is smaller, and if the rising trend of the voltage curve is faster, the response speed of the color oil film is faster, and the splitting degree is greater.
In the further arrangement of the invention, in the quadratic function rising stage, the longer the driving time length is, the smaller the splitting degree of the color oil film is.
According to the invention, the driving phases of the driving signals are sequentially a charge capturing phase, an oil film splitting inhibiting phase, an overdrive phase and a driving phase.
In a further arrangement of the present invention, the first driving voltage is a negative pulse voltage, and the larger the amplitude of the first driving voltage is, the more trapped charges are released.
According to the invention, the larger the amplitude of the fourth driving voltage is, the longer the driving time is, and the faster the response speed of the color oil film is.
Based on the same inventive concept, the invention also provides a display for realizing the electrowetting display driving method, which comprises a driving circuit and an electrowetting display;
the driving circuit is used for providing a driving signal, and the driving signal is used for realizing a charge capturing stage, an oil film splitting inhibiting stage and a driving stage in the electrowetting display driving process.
The invention provides an electrowetting display driving method and a display, wherein the electrowetting display driving method comprises the following steps: providing a driving signal; the driving signal comprises a charge capturing stage, an oil film splitting inhibiting stage and a driving stage which are used for realizing the driving process; in the charge trapping stage, the driving signal provides a first driving voltage to eliminate charges trapped by the hydrophobic insulating layer; in the oil film splitting suppression stage, the driving signal provides a second driving voltage to improve the response speed of the color oil film and suppress the color oil film splitting; wherein the second driving voltage is a rising conversion voltage; in the driving stage, the driving signal provides a third driving voltage to make the brightness of the electrowetting display be the target brightness. According to the invention, the driving waveform of the driving signal is set as a charge capturing stage, an oil film splitting inhibiting stage and a driving stage, and the first driving voltage is applied in the charge capturing stage to eliminate charges captured by the hydrophobic insulating layer, so that the influence of charge capturing is reduced, and the aperture opening ratio is improved. In addition, by driving with the second driving voltage of the up-conversion in the oil film splitting suppression stage, the oil film splitting can be suppressed while the response speed of the color oil film is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained from the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a display according to an embodiment of the present invention.
FIG. 2 is a flow chart of an electro-wetting display driving method according to an embodiment of the invention.
Fig. 3 is a diagram of a waveform testing system architecture of a driving signal of a display in an embodiment of the present invention.
Fig. 4 is a waveform diagram of a driving signal in an embodiment of the present invention.
The marks in the drawings are as follows: 100. a display; 110. electrowetting display; 120. a driving circuit; 200. a computer; 300. an arbitrary waveform function generator; 400. a voltage amplifier; 500. a colorimeter.
Detailed Description
The invention provides an electrowetting display driving method and a display, which are used for making the purposes, technical schemes and effects of the invention clearer and more definite, and the invention is further described in detail below by referring to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the description and claims, unless the context specifically defines the terms "a," "an," "the," and "the" include plural referents. If there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1, the present invention provides a display according to a preferred embodiment.
As shown in fig. 1, the present invention provides a display 100, which includes a driving circuit 110 and an electrowetting display 120; the driving circuit 100 is configured to provide a driving signal, where the driving signal is configured to implement a charge trapping stage, an oil film splitting inhibiting stage, an overdrive stage and a driving stage in the driving process of the electrowetting display 120.
Specifically, the electrowetting display 120 mainly includes an upper electrode plate (pixel electrode), a glass substrate, indium tin oxide, a hydrophobic dielectric layer, a pixel wall, a color oil film, and a conductive liquid. When no voltage is applied, the electrowetting display is in an equilibrium state, a continuous spreading film is formed between the hydrophobic dielectric layer and the conductive liquid by the color oil film, the pixel displays the color of the color ink, and the pixel is in an off state. When a certain voltage is applied between the upper polar plate and the glass substrate, the wettability of the color oil film on the hydrophobic dielectric layer is changed, the color oil film moves and contracts to separate from the surface of the hydrophobic dielectric layer, most of reflected light can be reflected after directly passing through the conductive liquid, and only a small part of the reflected light can not be reflected through the color oil film, so that the color of the substrate is white, and the pixel is in an on state.
In a single pixel, the ratio of the white area to the pixel area is the aperture ratio, W A The expression of (2) is:
wherein W is A Represents the aperture ratio, S oil Is the area of the color oil film in the pixel, S pixel Is the area of the pixel.
The drive signal is a sequence of voltages applied to the electrowetting display 120 that can control the movement of the color oil film, so that the display performance of the electrowetting display 120 is controlled by the drive signal (drive waveform). According to the Lippmann Young equation, it can be known that the relationship between the applied voltage and the contact angle is:
where θ is the oil-solid interface contact angle, V is the driving voltage applied to the pixel, γ OL Is the oil-liquid interfacial tension and C is the single pixel capacitance. It can be seen that the contact angle is related to the aperture ratio, and the larger the contact angle is, the larger the aperture ratio is, and thus the aperture ratio is proportional to the driving voltage. Meanwhile, the response speed is related to the driving voltage, and the higher the driving voltage is, the faster the response speed is.
The Pulse Width Modulation (PWM) waveform used for the driving signal has problems of long response time, low aperture ratio, oil film split, and oil film oscillation. The driving waveform of the driving signal provided by the invention is divided into a charge capturing stage, an oil film splitting inhibiting stage, an overdrive stage and a driving stage. In the charge trapping stage, a negative pulse voltage is applied to eliminate charges trapped by the hydrophobic insulating layer, thereby improving the aperture ratio. In the oil film splitting inhibition stage, an exponential rise stage and a quadratic function rise stage with different rising rates are respectively applied, so that the response speed of the color oil film is improved, the oil film splitting and the oil film oscillation are inhibited, and the stability of the color oil film is improved. In the overdrive stage, an overdrive voltage is applied to increase the response speed of the oil film, and then a target voltage is applied in the drive stage to obtain a target luminance.
As shown in fig. 2 to 4, in some embodiments, the present invention provides an electrowetting display driving method, which includes the steps of:
s100, providing a driving signal; wherein the driving signal comprises a charge capturing stage (A stage in fig. 4), an oil film splitting inhibiting stage (B and C stages in fig. 4) and a driving stage (E stage in fig. 4) in the driving process;
specifically, referring to fig. 1 and 2, after the waveform of the driving signal is designed on the computer 200, an arbitrary waveform function generator 300 is adopted to generate the driving signal, the generated driving signal is amplified by a voltage amplifier 400 and then output to a driving circuit 110 of the display 100, and the driving circuit 110 realizes a charge capturing stage, an oil film splitting inhibiting stage and a driving stage for driving the display 100 according to the driving signal. By placing the colorimeter 500 on the display 100 and in connection with the computer 200 and testing the brightness of the display 100 in real time as the drive signal is applied and providing test data to said computer 200, the performance of the drive waveform can be analyzed from the recorded data.
In specific implementation, the shape, voltage amplitude and frequency of the driving waveform are edited by Arbexpress waveform editing software in the computer 200, and then saved as tfw file and stored in the U disk. The edited driving waveform is then introduced into the arbitrary waveform function generator 300 through a Universal Serial Bus (USB) interface. And selects the corresponding driving waveform and adjusts the high and low levels and frequency at the arbitrary waveform function generator 300. Wherein, each lead on the driving circuit 110 of the display 100 corresponds to a pixel electrode controlling each pixel, and the common electrode is grounded. The output end of the arbitrary waveform function generator 300 is connected with the input end of the voltage amplifier 400, the positive and negative poles of the voltage amplifier 400 are respectively connected with the positive and negative poles of the driving circuit, and the amplification factor is adjusted. In one implementation, the input resistance of the voltage amplifier 400 is adjusted to 50 ohms, and the voltage amplification factor of the voltage amplifier 400 may be set to 10 times.
Next, the colorimeter 500 is connected to the computer 200, and the colorimetry software is turned on in the computer 200, and thereafter correction is performed using a standard white board while setting a delay of 6 so that luminance data can be correctly acquired. The colorimeter 500 is then placed onto the display 100, and the outputs of the arbitrary waveform function generator 300 and the voltage amplifier 400 are then turned on, starting to test the luminance data of the display 100. Finally, the luminance data measured by the colorimeter 500 is saved in a table format on the measurement software to obtain luminance curve data, and then analyzed to obtain a result.
S200, in the charge trapping stage, the driving signal provides a first driving voltage to eliminate charges trapped by the hydrophobic insulating layer;
specifically, when a drive signal is applied to the pixel, ions in the conductive liquid will be pulled toward the hydrophobic dielectric layer by electrostatic forces. When the interaction between the ions and the hydrophobic dielectric layer is stronger than the interaction between the ions and the conductive liquid, charge may be trapped in or on the hydrophobic dielectric layer. The relationship between the contact angle of the oil and the driving voltage is as follows:
wherein V is T The potential generated for charge trapping.
The charge trapping situation shows that the aperture ratio eventually achieved in electrowetting decreases with time, the more trapped charge decreases. Then, in the charge trapping stage, by applying the first driving voltage, the trapped charge can be released to reduce the influence of charge trapping, thereby improving the aperture ratio.
The first driving voltage V1 is a negative pulse voltage, and the larger the amplitude of the first driving voltage V1 is, the more the released trapped charges are, the larger the aperture ratio is, and the electrowetting display brightness can be improved.
In some embodiments, the first driving voltage V1 has a value of 0-10V and a duration of 0-10ms.
S300, in the phase of inhibiting oil film splitting, the driving signal provides a second driving voltage to improve the response speed of the color oil film and inhibit the color oil film splitting; wherein the second driving voltage is a rising conversion voltage;
specifically, in order to increase the response speed of the color oil film, the response speed of the color oil film can be increased by increasing the amplitude of the driving voltage, and the cracking voltage of the color oil film is exceeded after the driving voltage reaches a certain amplitude, so that the response speed of the color oil film is increased by adopting the second driving voltage V2 with rising conversion, thereby inhibiting the splitting degree and the oscillating degree of the color oil film and improving the stability of the color oil film.
S400, in the driving stage, the driving signal provides a third driving voltage to make the brightness of the electrowetting display be the target brightness.
Specifically, in the driving stage, the target luminance is obtained by applying the third driving voltage V3 as the target voltage.
In the above technical solution, by setting the driving waveform of the driving signal as the charge capturing phase, the oil film splitting inhibiting phase and the driving phase, the first driving voltage V1 is applied in the charge capturing phase to eliminate the charges captured by the hydrophobic insulating layer, so as to reduce the influence of charge capturing, thereby improving the aperture ratio, shortening the electrowetting response time and improving the display brightness. In addition, by driving with the second driving voltage V2 of the up-conversion in the phase of suppressing the oil film break, the oil film break and the oil film oscillation can be suppressed while the response speed of the color oil film is improved, and the stability of the color oil film is improved.
Referring to fig. 4, in a further implementation of an embodiment, the driving process of the driving signal further includes an overdrive stage (D stage in fig. 4); in the overdrive phase, the drive signal provides a fourth drive voltage to increase the response speed of the color oil film.
Specifically, the driving phases of the driving signal sequentially include a charge capturing phase, an oil film splitting inhibiting phase, an overdrive phase and a driving phase, that is, the overdrive phase is added before the driving phase, and a fourth driving voltage V4 (overdrive voltage) with a certain driving duration is applied to further improve the response speed of the color oil film.
Wherein the larger the magnitude of the fourth driving voltage V4, the longer the driving time, the more charge is trapped, and in some embodiments, the fourth driving voltage V4 is between 30 and 45V for a duration of 2 to 20ms. That is, the charge accumulated in the hydrophobic dielectric layer after the driving voltage is increased, i.e. the potential V generated by charge trapping T The overdrive voltage and the overdrive time length need to be analyzed, and based on the charge trapping theory, the overdrive voltage and the overdrive time with the least influence of charge trapping can be obtained through different influences of the overdrive voltage and the overdrive time length on the response time.
In addition, according to the charge capturing condition, in the charge capturing stage, the amplitude of the first driving voltage V1 is adjusted to further improve the aperture ratio of the electrowetting display.
With continued reference to fig. 4, in a further implementation of an embodiment, the oil film splitting suppression stage includes an exponential rise stage (B stage in fig. 4) and a quadratic rise stage (C stage in fig. 4). In the exponential rising phase, the second driving voltage V2 increases the response speed of the color oil film in an exponential rising trend; in the quadratic function rising stage, the second driving voltage V2 increases in a quadratic function rising trend to increase the response speed of the color oil film.
Specifically, the oil film splitting inhibition stage is a mixed ascending stage, namely an exponential ascending stage and a quadratic function ascending stage. In the rising process between the first driving voltage V1 and the second driving voltage V2, the range of the voltage stage generally cannot open the color oil film, so that an index rising stage with higher rising speed is adopted for driving in the index rising stageDynamic voltage U 1 The expression (t) is:
U 1 (t)＝(V 2 +V 1 )*(1-e -t/τ )-V 1 ；
where τ is a time constant, and the larger τ is, the slower the curve rises, and by adjusting the magnitude of τ, the magnitude of the driving voltage in the exponential rise phase can be adjusted. As can be seen from the above equation, in the exponential rise phase, if the voltage curve rises more slowly, the response speed of the color oil film is slower, the splitting degree is smaller, if the voltage curve rises more rapidly, the response speed of the color oil film is faster, and the splitting degree is greater, the splitting degree of the color oil film can be adjusted by adjusting the magnitude of τ, so that the oil film splitting and the oil film oscillation can be suppressed while maintaining a certain color oil film response speed.
However, after the second driving voltage V2 rises to a certain value, since the voltage range at this stage is already beyond the oil film splitting voltage, a slower quadratic function rising stage needs to be applied to suppress the oil film splitting, where the magnitude of the second driving voltage V2 is between zero and the fourth driving voltage V4, and the value of the second driving voltage V2 can be adjusted according to the degree of the oil film splitting. Driving voltage U in quadratic function rising stage 2 The expression of (t) is:
wherein R is the driving time of the rising stage of the quadratic function, the R value can be adjusted, and when the oil film splitting degree is serious, the R value can be increased. That is, in the quadratic function rising stage, the degree of splitting of the color oil film becomes smaller as the driving period is increased.
In summary, the electrowetting display driving method and the display provided by the invention have the following beneficial effects:
by setting the driving waveform of the driving signal as a charge trapping stage, an oil film splitting inhibiting stage and a driving stage, a first driving voltage is applied in the charge trapping stage to eliminate charges trapped by the hydrophobic insulating layer, so as to reduce the influence of charge trapping, thereby improving the aperture ratio, shortening the electrowetting response time and improving the display brightness. In addition, by driving with the second driving voltage of the up-conversion in the oil film splitting suppression stage, the oil film splitting can be suppressed while the response speed of the color oil film is improved, and the stability of the color oil film is improved.
It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.
Claims (10)
1. An electrowetting display driving method, comprising:
providing a driving signal; the driving signal comprises a charge capturing stage, an oil film splitting inhibiting stage and a driving stage which are used for realizing the driving process;
in the charge trapping stage, the driving signal provides a first driving voltage to eliminate charges trapped by the hydrophobic insulating layer;
in the oil film splitting suppression stage, the driving signal provides a second driving voltage to improve the response speed of the color oil film and suppress the color oil film splitting; wherein the second driving voltage is a rising conversion voltage;
in the driving stage, the driving signal provides a third driving voltage to make the brightness of the electrowetting display be the target brightness.
2. The electrowetting display driving method according to claim 1, wherein the driving process of the driving signal further comprises an overdrive phase; in the overdrive phase, the drive signal provides a fourth drive voltage to increase the response speed of the color oil film.
3. The electrowetting display driving method according to claim 2, wherein the oil film break-up suppressing stage includes an exponential rise stage and a quadratic rise stage;
in the exponential rising phase, the second driving voltage increases the response speed of the color oil film in an exponential rising trend;
in the quadratic function rising stage, the second driving voltage rises in a quadratic function rising trend to improve the response speed of the color oil film.
4. An electrowetting display driving method according to claim 3, wherein the magnitude of the second driving voltage is between zero and the fourth driving voltage.
5. The electrowetting display driving method according to claim 3, wherein in the index rising stage, the slower the voltage curve rising trend is, the slower the response speed of the color oil film is, the smaller the degree of splitting is, and the faster the voltage curve rising trend is, the faster the response speed of the color oil film is, and the greater the degree of splitting is.
6. An electrowetting display driving method according to claim 3, wherein in the quadratic function rising phase, the longer the driving time period is, the smaller the degree of splitting of the color oil film is.
7. The electrowetting display driving method according to claim 2, wherein the driving phases of the driving signal are sequentially a charge trapping phase, an oil film splitting suppressing phase, an overdrive phase and a driving phase.
8. The electrowetting display driving method according to claim 1, wherein the first driving voltage is a negative pulse voltage, and the larger the magnitude of the first driving voltage is, the more the released trapped charges are.
9. The electrowetting display driving method according to claim 2, wherein the larger the magnitude of the fourth driving voltage, the longer the driving time, and the faster the response speed of the color oil film.
10. A display for implementing the electrowetting display driving method of any one of claims 1 to 9, comprising a driving circuit and an electrowetting display;
the driving circuit is used for providing a driving signal, and the driving signal is used for realizing a charge capturing stage, an oil film splitting inhibiting stage and a driving stage in the electrowetting display driving process.
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| CN202211617047.3A CN116129817A (en) | 2022-12-14 | 2022-12-14 | Electrowetting display driving method and display |
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| CN202211617047.3A CN116129817A (en) | 2022-12-14 | 2022-12-14 | Electrowetting display driving method and display |
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