Cholesteric liquid crystal display and driving method thereof

Abstract

The present application provides a cholesteric liquid crystal display and a driving method thereof. The cholesteric liquid crystal display comprises a display panel and a liquid crystal driving unit. The display panel is used for displaying a picture, which is composed of one imaging driving pixel and a plurality of non-imaging driving pixels. The liquid crystal driving unit drives the display panel to display the picture by simultaneously applying a plurality of first driving voltages to the non-imaging driving pixels and a second driving voltage to the imaging driving pixel. The first driving voltage has a first pulse wave number in a unit time, and the second driving voltage has a second pulse wave number in the unit time. The first pulse wave number is at least 5 times greater than the second pulse wave number, and the greater the multiple is, the better the display effect is.

Description

Technical Field

[0001] This invention relates to the technical field of a cholesterol liquid crystal display and its driving method, and particularly to a cholesterol liquid crystal display and its driving method that can improve contrast and increase reflectivity by utilizing multiple high-frequency bands per unit time in a non-selection state to enhance the user's viewing experience. Background Technology

[0002] Currently, the most common method for controlling the image quality of cholesteric liquid crystal displays (LCDs) is a PM (Pulse Modulation) driving mode, which includes Pulse Width Modulation (PWM), Dynamic Drive Scheme (DDS), and other composite curve driving modes. The PWM driving mode includes a Selection stage and a Non-Selection stage; the DDS driving mode includes a Prepare stage, a Selection stage, an Evo stage, and a Non-Selection stage; and the composite curve driving mode includes a Manipulation stage, a Selection stage, and a Non-Selection stage. Thus, it can be seen that the PM driving mode always has a Non-Selection stage, and control is performed through this stage to improve the image quality of the cholesteric liquid crystal display.

[0003] In existing technology, a cholesteric liquid crystal display (LCD) comprises two substrates, upper and lower, with electrodes disposed on the upper surface of each substrate. The electrodes on the upper and lower substrates are staggered, with one electrode serving as the COM terminal and the other as the SEG terminal. The voltage input to the SEG terminal includes bright-state and dark-state voltages, while the voltage input to the COM terminal includes both selection and non-selection voltages. This allows different liquid crystal voltages to be applied to different areas during image updates, thereby achieving the display of different color levels. (See [link to relevant documentation]). Figures 1 to 6 It can be seen that in the complete waveforms of the traditional PWM drive mode and the DDS drive mode, the frequencies of the Non-Selection stage and the Selection stage are the same, and at least one positive half-wave must be paired with at least one negative half-wave to complete the entire drive mode. When at least one COM terminal performs image imaging (including the Selection stage, EVO stage, Prepare stage, Manipulation stage, etc.), the remaining COM terminals perform the Non-Selection stage operation, and this Non-Selection stage will affect the display effect.

[0004] from Figure 7 As can be seen from the photos, when displaying an image of a bottle cap in the existing technology, there is a very obvious dark shadow in the center of the screen. Such a shadow will lead to a poor viewing experience for the user. If the hardware contrast is adjusted, the shadow on the screen will become more obvious.

[0005] Therefore, in order to improve the user's viewing experience and to adjust the contrast and reflectivity of cholesteric liquid crystal displays, it is necessary to develop ideal technical methods to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a cholesterol liquid crystal display and its driving method to improve the display effect, such as increasing contrast or improving reflectivity, so that users can have a better viewing experience.

[0007] This invention relates to a cholesterol liquid crystal display and its driving method, the cholesterol liquid crystal display comprising a display panel and a liquid crystal driving unit.

[0008] The display panel is used to display an image, which is composed of one imaging driving pixel and a plurality of non-imaging driving pixels, and the imaging driving pixel is composed of a plurality of sub-imaging driving pixels. The liquid crystal driving unit drives the display panel to display the image simultaneously by a plurality of first driving voltages applied to the non-imaging driving pixels and a second driving voltage applied to the imaging driving pixels. The first driving voltage has a first number of pulse waves in a unit time, and the second driving voltage has a second number of pulse waves in the unit time, wherein the first number of pulse waves is greater than the second number of pulse waves.

[0009] The display panel has a plurality of common electrode scan lines (COMLine), which are electrically coupled to the liquid crystal driving unit for displaying the image. The imaging driving pixel is displayed by at least one common electrode scan line with a second driving voltage having the second pulse wave number, and the non-imaging driving pixel is displayed by other common electrode scan lines with a first driving voltage having the first pulse wave number. The common electrode scan line with the first driving voltage may have an overall reflectivity that is too bright or too dark due to voltage or time parameters, but ultimately it will not affect the imaging effect.

[0010] The number of the first pulse wave per unit time is at least 5 times greater than the number of the second pulse wave, and the greater the multiple, the better the display effect.

[0011] Subsequently, the second driving voltage is a selection voltage, and the first driving voltage is a non-selection voltage.

[0012] Furthermore, the first driving voltage has a peak and a trough, and the peak and the trough are continuous for a period of time.

[0013] The unit time is one of a positive half-wave period or a negative half-wave period, that is, the positive half-wave period and the negative half-wave period can be used to represent the unit time.

[0014] In one embodiment, the number of first pulse waves during the positive half-wave period of the unselected voltage is either equal to or unequal to the number of first pulse waves during the negative half-wave period.

[0015] In one embodiment, the number of first pulse waves per unit time is a first pulse wave frequency, the number of second pulse waves per unit time is a second pulse wave frequency, and the first pulse wave frequency in a local part of the positive half-wave period or the negative half-wave period in the unselected state is equal to or unequal to the first pulse wave frequency in another local part.

[0016] In one embodiment, the number of first pulse waves per unit time is a first pulse wave frequency, the number of second pulse waves per unit time is a second pulse wave frequency, and the first pulse wave frequency of either the positive half-wave period or the negative half-wave period in the unselected state is a non-equal voltage peak frequency.

[0017] In one embodiment, the number of first pulse waves is the number of multiple first pulse waves in the unit time, and the peak value of the first pulse wave in the positive half-wave period or the negative half-wave period in the unselected state is a fixed voltage for a time period.

[0018] Furthermore, the present invention also discloses a driving method for a cholesteric liquid crystal display, the cholesteric liquid crystal display comprising a display panel for displaying an image, wherein the image is composed of one imaging driving pixel and a plurality of non-imaging driving pixels, the driving method comprising the following steps:

[0019] Steps: Apply a first driving voltage with a first number of pulse waves to the non-imaging driving pixel within a unit time, and apply a second driving voltage with a second number of pulse waves to the imaging driving pixel within the same unit time to drive the display panel, wherein the first number of pulse waves is greater than the second number of pulse waves.

[0020] Step: The display panel is used to display the image.

[0021] The display panel has a plurality of common electrode scan lines electrically coupled to the liquid crystal driving unit for displaying the image. The imaging driving pixel is displayed by at least one common electrode scan line having a second driving voltage having the second pulse wave number, and the non-imaging driving pixel is displayed by other common electrode scan lines having a first driving voltage having the first pulse wave number.

[0022] Furthermore, the number of the first pulse waves per unit time is at least 5 times greater than the number of the second pulse waves, and the larger the multiple, the better the display effect.

[0023] The second driving voltage is a selection voltage, and the first driving voltage is a non-selection voltage.

[0024] The first driving voltage further has a peak and a trough, the peak and the trough being continuous over a period of time.

[0025] The unit time is one of the following: a positive half-wave period or a negative half-wave period.

[0026] In one embodiment, the number of first pulse waves during the positive half-wave period of the unselected voltage is either equal to or unequal to the number of first pulse waves during the negative half-wave period.

[0027] In one embodiment, the number of first pulse waves per unit time is a first pulse wave frequency, the number of second pulse waves per unit time is a second pulse wave frequency, and the first pulse wave frequency in a local part of the positive half-wave period or the negative half-wave period in the unselected state is equal to or unequal to the first pulse wave frequency in another local part.

[0028] In one embodiment, the number of first pulse waves per unit time is a first pulse wave frequency, the number of second pulse waves per unit time is a second pulse wave frequency, and the first pulse wave frequency of either the positive half-wave period or the negative half-wave period in the unselected state is a non-equal voltage peak frequency.

[0029] In one embodiment, the number of first pulse waves is the number of multiple first pulse waves in the unit time, and the peak value of the first pulse wave in the positive half-wave period or the negative half-wave period in the unselected state is a fixed voltage for a time period.

[0030] Therefore, by utilizing the cholesterol liquid crystal display and its driving method provided by the present invention, various high-frequency means are employed at different unit times in the unselected state to achieve display effects such as increasing contrast or improving reflectivity. In the unit time, the number of the first pulse wave is at least 5 times greater than the number of the second pulse wave, and the greater the multiple, the better the display effect.

[0031] Other features and beneficial effects of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects of the invention and other beneficial effects may be realized and obtained by means of the structures particularly pointed out in the description, claims, etc. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Unless otherwise specified, the positional relationships shown in the drawings in the following description are based on the direction in which the components are drawn in the figure.

[0033] Figure 1 This is a waveform diagram of the Selection phase in the PWM drive mode in existing technology;

[0034] Figure 2 This is a waveform diagram of the Non-Selection stage of PWM drive mode in existing technology;

[0035] Figure 3 This is a waveform diagram of the first type of the Selection stage in the existing DDS driving mode;

[0036] Figure 4 This is a waveform diagram of the first type of the Non-Selection stage in the existing DDS driving mode;

[0037] Figure 5 This is a waveform diagram of the second type of the Selection stage in the existing DDS driving mode;

[0038] Figure 6 This is a waveform diagram of the second type of the Non-Selection stage in the existing DDS driving mode;

[0039] Figure 7 These are photographs depicting actual performance in existing technologies;

[0040] Figure 8This is a schematic diagram of the cholesterol liquid crystal display of the present invention;

[0041] Figure 9 This is a waveform diagram of the first embodiment of the Non-Selection stage of the present invention within a unit of time.

[0042] Figure 10 This is a waveform diagram of the second embodiment of the Non-Selection stage of the present invention within a unit of time.

[0043] Figure 11 This is a waveform diagram of the third embodiment of the present invention within a unit of time during the Non-Selection stage;

[0044] Figure 12 This is a waveform diagram of the Selection stage in the complex PWM drive mode of the prior art;

[0045] Figure 13 This is a waveform diagram of the fourth embodiment of the present invention within a unit of time during the Non-Selection stage;

[0046] Figure 14 This is a flowchart of the cholesterol liquid crystal display driving method of the present invention;

[0047] Figure 15 These are photographs showing the actual manifestation of the first embodiment of the present invention; and

[0048] Figure 16 This is a photograph showing the actual manifestation of the second embodiment of the present invention.

[0049] Figure label:

[0050] 1: Cholesterol LCD monitor

[0051] 2: Driving method for cholesterol liquid crystal displays

[0052] 20: Display panel

[0053] 22: Screen

[0054] 23: Common Electrode Scan Line

[0055] 24: Imaging-driven pixels

[0056] 25: Sub-imaging driven pixels

[0057] 26: Non-imaging driven pixels

[0058] 27: Sub-imaging driven pixels

[0059] 50: LCD driving unit

[0060] 51: First driving voltage

[0061] 52: Second driving voltage

[0062] 84: Positive half-wave period

[0063] 86: Negative half-wave period

[0064] 94: Peak

[0065] 96: trough

[0066] T: Unit time Detailed Implementation

[0067] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. The technical features designed in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0068] In the description of this invention, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof mean "at least comprising."

[0069] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrally formed connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0070] The purpose of this invention is to provide a cholesterol liquid crystal display and its driving method to improve the display effect, such as increasing contrast or improving reflectivity to reduce the generated black shadows, so that users can have a better viewing experience.

[0071] This invention relates to a cholesterol liquid crystal display; please refer to [link / reference]. Figure 8 and paired Figure 9 , Figure 8 This is a schematic diagram of the cholesterol liquid crystal display of the present invention. Figure 9 This is a waveform diagram of the first embodiment of the Non-Selection stage of the present invention within a unit time period, wherein... Figure 9 This is one embodiment of the high-frequency display, wherein the cholesterol liquid crystal display 1 includes a display panel 20 and a liquid crystal driving unit 50.

[0072] The display panel 20 is used to display a screen 22, which is composed of one imaging driving pixel 24 and a plurality of non-imaging driving pixels 26. The imaging driving pixel 24 is composed of a plurality of sub-imaging driving pixels 25, and the non-imaging driving pixel 26 is composed of a plurality of sub-non-imaging driving pixels 27.

[0073] The liquid crystal driving unit 50 drives the display panel 20 to display the image 22 simultaneously by a plurality of first driving voltages 51 applied to non-imaging driving pixels 26 and a second driving voltage 52 applied to imaging driving pixels 24, and the second driving voltage 52 can be a selected voltage, and the first driving voltage 51 can be an unselected voltage.

[0074] Compare Figure 1 and Figure 9 , Figure 1 This is the waveform of the second driving voltage. Figure 9 The waveform of the first driving voltage is shown. Within the same unit time T, the first driving voltage 51 has a first number of pulse waves, while the second driving voltage 52 has a second number of pulse waves. Through comparison, it can be seen that within the unit time T, the number of the first pulse waves is greater than the number of the second pulse waves. Furthermore, experiments have shown that the number of the first pulse waves is at least 5 times greater than the number of the second pulse waves. Moreover, the greater the multiple, the better the display effect, that is, the less black shadow remains in the aforementioned photo.

[0075] Continuing, the display panel 20 has a plurality of common electrode scan lines 23, which are electrically coupled to the liquid crystal driving unit 50 for displaying the image 22. The imaging driving pixel 24 is displayed by at least one common electrode scan line 23 having a second driving voltage 52 with the second pulse wave number, and the non-imaging driving pixel 26 is displayed by other common electrode scan lines 23 having a first driving voltage 51 with the first pulse wave number. The common electrode scan lines 23 with the first driving voltage 51 may have a slightly brighter or darker overall reflectivity due to voltage or time parameters, but ultimately this will not affect the imaging effect.

[0076] First Figure 9 The curve of the bright state shows that the first driving voltage 51 has a peak 94 and a trough 96, wherein the unit time T is one of a positive half-wave period 84 or a negative half-wave period 86. That is, the positive half-wave period 84 and the negative half-wave period 86 can be used to represent the unit time T, and the unit time T of the two can be the same or different. That is, the positive half-wave period 84 and the negative half-wave period 86 of the unit time T can be the same or different.

[0077] For example Figure 9 As shown, the number of first pulse waves in the positive half-wave period 84 time interval within unit time T is equal to the number of first pulse waves in the negative half-wave period 86 time interval, but if compared with... Figure 1 In contrast, the number of first pulse waves is greater than the number of second pulse waves in both the positive half-wave period 84 and the negative half-wave period 86. In other embodiments, the number of first pulse waves in the positive half-wave period 84 and the number of first pulse waves in the negative half-wave period 86 may not be equal within a unit time T.

[0078] Please see Figure 10 And compare Figure 1 , Figure 10 This is a waveform diagram of the second embodiment of the Non-Selection stage of the present invention within a unit of time. Figure 10 and Figure 1 In the first driving voltage 51, the number of first pulse waves within a unit time T is a first pulse wave frequency; in the second driving voltage 52, the number of second pulse waves within a unit time T is a second pulse wave frequency. Comparatively, the first pulse wave frequency within a unit time T is greater than the second pulse wave frequency. Figure 10Using the waveform of the bright state as an example, within a unit time T, the positive half-wave period 84 and the negative half-wave period 86 have two selected first pulse wave frequencies, namely a local first pulse wave frequency and a other local first pulse wave frequency, and the frequencies between the two can be unequal.

[0079] Please see Figure 11 , Figure 11 This is a waveform diagram of the third embodiment of the Non-Selection stage of the present invention within a unit time. Within a unit time T, the positive half-wave period 84 and the negative half-wave period 86 may have discontinuous waveforms. Taking the bright state curve as an example, in the positive half-wave period 84 and the negative half-wave period 86, the peak 94 and the trough 96 of the first pulse wave are continuous for a period of time within a unit time T. The purpose of this continuous period is to save energy, because the cholesterol liquid crystal display 1 will have energy consumption problems when switching voltage instantaneously.

[0080] Please see Figure 13 And compare Figure 12 ,as well as Figure 1 , Figure 13 This is a waveform diagram of the fourth embodiment of the present invention within a unit time during the Non-Selection stage, and it is also a waveform diagram in the complex PWM drive mode. Figure 12 This is a waveform diagram of the Selection stage in the complex PWM drive mode of existing technology, for comparison. Figure 1 as well as Figure 12 It can be seen that within the unit time T Figure 12 Having twice the number and frequency of the second pulse wave, it is therefore considered a complex driving mode. (See also...) Figure 13 In the first driving voltage 51, when the number of first pulse waves is the number of multiple first pulse waves within the unit time T, that is, in a waveform, there are multiple first pulse waves in the positive half-wave period 84 and the negative half-wave period 86 respectively, as shown in the circled area, the peak values ​​of the first pulse waves in the positive half-wave period 84 and the negative half-wave period 86 of the unselected voltage will be constant voltages for a period of time, and the frequency and number of first pulse waves in the positive half-wave period 84 and the negative half-wave period 86 can be different, and the comparison continues. Figure 13 and Figure 12 As mentioned above, within the unit time T, the first driving voltage 51 has a greater quantity and frequency than the second driving voltage 52.

[0081] Furthermore, this invention can also be a driving method 2 for a cholesterol liquid crystal display; please refer to [link / reference]. Figure 14 and paired Figure 8 , Figure 14 This is a flowchart of a cholesteric liquid crystal display driving method according to the present invention. The cholesteric liquid crystal display includes a display panel 20 for displaying a screen 22, and the screen 22 is composed of one imaging driving pixel 24 and a plurality of non-imaging driving pixels 26. The driving method includes the following steps:

[0082] Step 1 SO1: Apply a first driving voltage 51 with a first number of pulse waves to the non-imaging driving pixel 26 within a unit time T, and apply a second driving voltage 52 with a second number of pulse waves to the imaging driving pixel 24 within the same unit time T to drive the display panel 20, wherein the first number of pulse waves is greater than the second number of pulse waves.

[0083] Step 2 SO2: The display panel 20 displays the screen 22.

[0084] As described above, the display panel 20 has a plurality of common electrode scan lines 23, which are electrically coupled to the liquid crystal driving unit 50 for displaying the image 22. The imaging driving pixel 24 is displayed by at least one common electrode scan line 23 having a second driving voltage 52 with the second pulse wave number, and the non-imaging driving pixel 26 is displayed by other common electrode scan lines 23 having a first driving voltage 51 with the first pulse wave number.

[0085] Furthermore, the number of the first pulse waves within the unit time T is at least 5 times greater than the number of the second pulse waves, and the greater the multiple, the better the display effect.

[0086] Please see Figure 15 as well as Figure 16 And compare Figure 7 , Figure 15 This is a photograph showing the actual manifestation of the first embodiment of the present invention, in the state where a high-frequency voltage is applied to the first driving voltage 51. Figure 16 This is a photograph showing the actual manifestation of the second embodiment of the present invention, in the state where a high-frequency voltage is applied locally to the first driving voltage 51, and... Figure 7 In comparison, by applying a high-frequency first driving voltage 51, it will be more effective than before. Figure 7 The display effect is good, that is, there are fewer shadows produced by the bottle cap in the center of the photo. And it has been proven by experiments that the effect of using high frequency voltage throughout the first driving voltage 51 is better than the effect of using high frequency only in a part. In other words, fewer shadows are produced when high frequency voltage is applied throughout the first driving voltage 51.

[0087] In summary, by utilizing the cholesterol liquid crystal display and its driving method provided by the present invention, it can be seen that by employing various high-frequency means, such as all high frequencies, partial high frequencies, or discontinuous high frequencies, a first driving voltage 51 within different unit times T in the unselected state, the contrast and reflectivity can be increased. In the unit time T, the number of the first pulse waves is at least 5 times greater than the number of the second pulse waves, and the greater the multiple, the better the display effect, that is, the fewer black shadows are produced.

[0088] Furthermore, those skilled in the art should understand that although many problems exist in the prior art, each embodiment or technical solution of the present invention can be improved in only one or a few aspects, without necessarily solving all the technical problems listed in the prior art or the background art simultaneously. Those skilled in the art should understand that any content not mentioned in a claim should not be construed as a limitation on that claim.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cholesterol liquid crystal display, characterized in that: The cholesterol liquid crystal display includes: A display panel for displaying an image, said image being composed of one imaging-driven pixel and a plurality of non-imaging-driven pixels; and A liquid crystal driving unit simultaneously drives the display panel to display the image by a plurality of first driving voltages corresponding to the non-imaging driving pixels and a second driving voltage applied to the imaging driving pixels. The first driving voltage has a first number of pulse waves in a unit time, and the second driving voltage has a second number of pulse waves in the same unit time. The first number of pulse waves is greater than the second number of pulse waves. The second driving voltage is a selection voltage, the first driving voltage is a non-selection voltage, and a non-selection area is a non-selection state.

2. The cholesterol liquid crystal display according to claim 1, characterized in that: The display panel has a plurality of common electrode scan lines electrically coupled to the liquid crystal driving unit for displaying the image. The imaging driving pixel is displayed by at least one common electrode scan line having a second driving voltage having the second pulse wave number, and the non-imaging driving pixel is displayed by other common electrode scan lines having a first driving voltage having the first pulse wave number.

3. The cholesterol liquid crystal display according to claim 1, characterized in that: The number of the first pulse wave per unit time is greater than 5 times the number of the second pulse wave.

4. The cholesterol liquid crystal display according to claim 1, characterized in that: The first driving voltage has a peak and a trough, and the peak and the trough are continuous for a period of time.

5. The cholesterol liquid crystal display according to claim 3, characterized in that: The unit time is either a positive half-wave period or a negative half-wave period.

6. The cholesterol liquid crystal display according to claim 5, characterized in that: The number of the first pulse waves in the positive half-wave period of the unselected voltage is either equal to or unequal to the number of the first pulse waves in the negative half-wave period.

7. The cholesterol liquid crystal display according to claim 5, characterized in that: The number of first pulse waves per unit time is a first pulse wave frequency, the number of second pulse waves per unit time is a second pulse wave frequency, and the first pulse wave frequency in a local part of the positive half-wave period or the negative half-wave period in the unselected state is equal to or unequal to the first pulse wave frequency in another local part.

8. The cholesterol liquid crystal display according to claim 5, characterized in that: The number of first pulse waves per unit time is a first pulse wave frequency, the number of second pulse waves per unit time is a second pulse wave frequency, and the first pulse wave frequency of either the positive half-wave period or the negative half-wave period in the unselected state is a non-equal voltage peak frequency.

9. The cholesterol liquid crystal display according to claim 5, characterized in that: The number of the first pulse waves refers to the number of multiple first pulse waves within the unit time, and the peak value of the first pulse wave in the positive half-wave period or the negative half-wave period in the unselected state is a fixed voltage over a time period.

10. A driving method for a cholesterol liquid crystal display, characterized in that: The cholesterol liquid crystal display includes a display panel for displaying an image, wherein the image is composed of one imaging driving pixel and a plurality of non-imaging driving pixels, and the driving method includes the following steps: The display panel is driven by applying a first driving voltage having a first pulse wave number to the non-imaging driving pixels within a unit time, and applying a second driving voltage having a second pulse wave number to the imaging driving pixels within the same unit time, wherein the first pulse wave number is greater than the second pulse wave number; and The display panel is used to display the image; The second driving voltage is a selection voltage, the first driving voltage is an unselected voltage, and an unselected region is an unselected state.

11. The driving method for a cholesterol liquid crystal display according to claim 10, characterized in that: The display panel has a plurality of common electrode scan lines electrically coupled to a liquid crystal driving unit for displaying the image. The imaging driving pixel is displayed by at least one common electrode scan line having a second driving voltage with the second pulse wave number, and the non-imaging driving pixel is displayed by other common electrode scan lines having a first driving voltage with the first pulse wave number.

12. The driving method for a cholesterol liquid crystal display according to claim 10, characterized in that: The number of the first pulse wave per unit time is greater than 5 times the number of the second pulse wave.

13. The driving method for a cholesterol liquid crystal display according to claim 10, characterized in that: The first driving voltage has a peak and a trough, and the peak and the trough are continuous for a period of time.

14. The driving method for a cholesterol liquid crystal display according to claim 12, characterized in that: The unit time is either a positive half-wave period or a negative half-wave period.

15. The driving method for a cholesterol liquid crystal display according to claim 14, characterized in that: The number of the first pulse waves in the positive half-wave period of the unselected voltage is either equal to or unequal to the number of the first pulse waves in the negative half-wave period.

16. The driving method for a cholesterol liquid crystal display according to claim 14, characterized in that: The number of first pulse waves per unit time is a first pulse wave frequency, the number of second pulse waves per unit time is a second pulse wave frequency, and the first pulse wave frequency in a local part of the positive half-wave period or the negative half-wave period in the unselected state is equal to or unequal to the first pulse wave frequency in another local part.

17. The driving method for a cholesterol liquid crystal display according to claim 14, characterized in that: The number of first pulse waves per unit time is a first pulse wave frequency, the number of second pulse waves per unit time is a second pulse wave frequency, and the first pulse wave frequency of either the positive half-wave period or the negative half-wave period in the unselected state is a non-equal voltage peak frequency.

18. The driving method for a cholesterol liquid crystal display according to claim 14, characterized in that: The number of the first pulse waves refers to the number of multiple first pulse waves within the unit time, and the peak value of the first pulse wave in the positive half-wave period or the negative half-wave period in the unselected state is a fixed voltage over a time period.

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