Cholesterol liquid crystal display and driving method thereof

Abstract

The invention provides a cholesterol liquid crystal display and a driving method thereof, the cholesterol liquid crystal display comprises a display panel and a liquid crystal driving unit, the display panel is used for displaying a picture, and the picture is composed of an imaging driving pixel and a plurality of non-imaging driving pixels. The liquid crystal driving unit simultaneously drives the display panel to display a picture by means of a plurality of first driving voltages applied to the non-imaging driving pixels and a plurality of second driving voltages applied to the imaging driving pixels, and the first driving voltages have a first pulse wave number in a unit time. The second driving voltage has a second pulse wave number in unit time, the number of the first pulse waves is at least five times larger than the number of the second pulse waves, and the display effect is better when the number of the first pulse waves is larger than the number of the second pulse waves.

Description

Technical Field

[0001] The present invention relates to the technical field of cholesteric liquid crystal displays and their driving methods, and particularly to a cholesteric liquid crystal display and its driving method that can use multiple high-frequency bands to improve the contrast and increase the reflectivity within a unit time in the non-selection state, thereby enhancing the viewing experience of users. Background Art

[0002] Currently, the common method for controlling the image of a cholesteric liquid crystal display is a PM (Pulse Modulation) driving mode, which includes a pulse width modulation mode (Pulse Width Modulation, abbreviated as PWM), a dynamic drive mode (Dynamic Drive Scheme, abbreviated as DDS), and other driving modes with composite curves. In the PWM driving mode, it includes a selection stage and a non-selection stage; in the DDS driving mode, it includes a prepare stage, a selection stage, an evo stage, and a non-selection stage; and in the driving mode with composite curves, it includes a manipulation stage, a selection stage, and a non-selection stage. Thus, it can be seen that the PM driving mode all has a non-selection stage and is controlled through this stage to improve the image effect of the cholesteric liquid crystal display.

[0003] In the prior art, a cholesteric liquid crystal display includes upper and lower substrates, and electrodes are arranged above the substrates, and the electrode directions of the upper and lower substrates are staggered. One electrode is the COM terminal, and the other electrode is the SEG terminal. The voltage input to the SEG terminal includes a bright state voltage and a dark state voltage, and the voltage input to the COM terminal includes two voltages in the selection stage and the non-selection stage. In this way, when the image is updated, different liquid crystal voltages are applied to different regions, thereby realizing the display of different color levels. Please refer to Figures 1 to 6 It can be seen that in the complete waveforms of the traditional PWM driving mode and the DDS driving mode, the frequencies of the non-selection stage and the selection stage are the same, and at least one positive half-waveform and at least one negative half-waveform must be used to complete the entire driving mode. Also, when imaging the image (including the selection stage, the EVO stage, the prepare stage, the manipulation stage, etc.) on at least one COM terminal, the remaining COM terminals perform the actions of the non-selection stage, and this non-selection stage will affect the effect of the display image.

[0004] From Figure 7 the photos, it can be seen that when displaying an image of a bottle cap in the prior art, there is an obvious black shadow in the center of the screen. Such a black shadow will result in a poor viewing experience for users. If the contrast of the hardware is adjusted, the black shadow on the screen will become more obvious.

[0005] Therefore, in order to improve the viewing experience of users and adjust the contrast and reflectivity of the cholesteric liquid crystal display, it is necessary to develop an ideal technical method to solve the above problems. Summary of the Invention

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

[0007] The present invention relates to a cholesteric liquid crystal display and its driving method. The cholesteric liquid crystal display includes a display panel and a liquid crystal driving unit.

[0008] The display panel is used to display a screen. The screen is composed of a plurality of imaging driving pixels and a plurality of non-imaging driving pixels. And the imaging driving pixels are composed of a plurality of sub-imaging driving pixels. The liquid crystal driving unit simultaneously drives the display panel to display the screen 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. Wherein the first driving voltage has a first number of pulse waves within a unit time, and the second driving voltage has a second number of pulse waves within the unit time, and 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 (Common Electrode Scan Line; COMLine). The common electrode scan lines are electrically coupled to the liquid crystal driving unit to display the screen. The imaging driving pixels are displayed by at least one common electrode scan line having the second driving voltage with the second number of pulse waves, and the non-imaging driving pixels are displayed by other common electrode scan lines having the first driving voltage with the first number of pulse waves. Wherein the common electrode scan lines of the first driving voltage may cause the overall reflectivity to be too bright or too dark due to voltage parameters or time parameters, but ultimately it will not affect the imaging effect.

[0010] Within the unit time, the first number of pulse waves is at least more than 5 times the second number of pulse waves, and the more 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] Moreover, the first driving voltage further has a peak and a trough, and the peak and the trough are respectively continuous for a period of time.

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

[0014] In one embodiment, the number of the first pulse waves in the positive half-wave cycle period of the Non-Selection voltage is either equal to or not equal to the number of the first pulse waves in the negative half-wave cycle period.

[0015] In one embodiment, the number of the first pulse waves within the unit time is a first pulse wave frequency, the number of the second pulse waves within the unit time is a second pulse wave frequency, and the first pulse wave frequency in a part of the positive half-wave cycle period or the negative half-wave cycle period in the Non-Selection state is either equal to or not equal to the first pulse wave frequency in another part.

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

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

[0018] Furthermore, the present invention also discloses a driving method for a cholesteric liquid crystal display. The cholesteric liquid crystal display includes a display panel for displaying a picture, and the picture is composed of a line of imaging driving pixels and a plurality of non-imaging driving pixels. The driving method includes the following steps:

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

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

[0021] Wherein, the display panel has a plurality of common electrode scanning lines, the common electrode scanning lines are electrically coupled to the liquid crystal driving unit to display the picture, the imaging driving pixels are displayed by at least one common electrode scanning line having a second driving voltage with the second number of pulse waves, and the non-imaging driving pixels are displayed by other common electrode scanning lines having a first driving voltage with the first number of pulse waves.

[0022] Moreover, the number of the first pulse waves within the unit time is at least greater than 5 times the number of the second pulse waves, and the greater 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 wave crest and a wave trough, and the wave crest and the wave trough are continuous within a period of time respectively.

[0025] The unit time is one of states such as a positive half-wave cycle period or a negative half-wave cycle period.

[0026] In one embodiment, the number of the first pulse waves in the positive half-wave cycle period of the Non-Selection voltage is either equal to or not equal to the number of the first pulse waves in the negative half-wave cycle period.

[0027] In one embodiment, the number of the first pulse waves within the unit time is a first pulse wave frequency, the number of the second pulse waves within the unit time is a second pulse wave frequency, and the first pulse wave frequency in a part of the positive half-wave cycle period or the negative half-wave cycle period in the Non-Selection state is either equal to or not equal to the first pulse wave frequency in another part.

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

[0029] In one embodiment, the number of the first pulse waves is the number of a plurality of first pulse waves within the unit time, and the peak value of the first pulse wave in the positive half-wave cycle period or the negative half-wave cycle period in the Non-Selection state is a constant voltage for a period of time.

[0030] Therefore, by using the cholesteric liquid crystal display and its driving method provided by the present invention, by adopting a variety of high-frequency means respectively within different unit times in the unselected state, display effects such as increasing the contrast or enhancing the reflectivity are achieved. Among them, within the unit time, the number of the first pulse waves is at least more than 5 times that of the second pulse waves, and the more the multiple, the better the display effect.

[0031] Other features and beneficial effects of the present invention will be described in the subsequent specification, and part of them will become obvious from the specification or be understood by implementing the present invention. The purpose and other beneficial effects of the present invention can be achieved and obtained through the structures specifically pointed out in the specification, claims and other contents. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts; in the following description, regarding the positional relationship of the drawings, unless otherwise specified, the directions shown by the components in the drawings are taken as the reference.

[0033] Figure 1 is the waveform diagram of the Selection stage of the PWM driving mode in the prior art;

[0034] Figure 2 is the waveform diagram of the Non-Selection stage of the PWM driving mode in the prior art;

[0035] Figure 3 is the waveform diagram of the first type of the Selection stage of the DDS driving mode in the prior art;

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

[0037] Figure 5 is the waveform diagram of the second type of the Selection stage of the DDS driving mode in the prior art;

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

[0039] Figure 7 is the photo of the actual performance in the prior art;

[0040] Figure 8Schematic diagram of the cholesteric liquid crystal display of the present invention;

[0041] Figure 9 Waveform diagram of the first embodiment within a unit time in the Non-Selection stage of the present invention;

[0042] Figure 10 Waveform diagram of the second embodiment within a unit time in the Non-Selection stage of the present invention;

[0043] Figure 11 Waveform diagram of the third embodiment within a unit time in the Non-Selection stage of the present invention;

[0044] Figure 12 Waveform diagram of the Selection stage of the complex PWM driving mode in the prior art;

[0045] Figure 13 Waveform diagram of the fourth embodiment within a unit time in the Non-Selection stage of the present invention;

[0046] Figure 14 Flowchart of the driving method of the cholesteric liquid crystal display of the present invention;

[0047] Figure 15 Photo of the actual performance of the first embodiment of the present invention; and

[0048] Figure 16 Photo of the actual performance of the second embodiment of the present invention.

[0049] Reference numerals:

[0050] 1: Cholesteric liquid crystal display

[0051] 2: Driving method of the cholesteric liquid crystal display

[0052] 20: Display panel

[0053] 22: Screen

[0054] 23: Common electrode scanning line

[0055] 24: Imaging driving pixel

[0056] 25: Sub-imaging driving pixel

[0057] 26: Non-imaging driving pixel

[0058] 27: Sub-non-imaging driving pixel

[0059] 50: Liquid crystal 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: Wave crest

[0065] 96: Wave trough

[0066] T: Unit time Detailed implementation manners

[0067] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. The technical features designed in different implementation manners 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 of ordinary skill in the art based on the embodiments of the present invention without making creative efforts fall within the protection scope of the present invention.

[0068] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "a plurality of" means two or more. In addition, the term "comprising" and any variation thereof mean "at least including".

[0069] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral formed connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

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

[0071] The present invention relates to a cholesteric liquid crystal display. Please refer to Figure 8 and cooperate with Figure 9 , Figure 8 which is a schematic diagram of the cholesteric liquid crystal display of the present invention. Figure 9 which is a waveform diagram of the first embodiment within a unit time in the Non-Selection stage of the present invention, wherein Figure 9 is an embodiment of all high frequencies. The cholesteric 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 picture 22. The picture 22 is composed of a line of imaging driving pixels 24 and a plurality of non-imaging driving pixels 26. And a line of imaging driving pixels 24 is composed of a plurality of sub-imaging driving pixels 25, and a line of non-imaging driving pixels 26 is composed of a plurality of sub-non-imaging driving pixels 27.

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

[0074] Compare Figure 1 and Figure 9 , Figure 1 which is the waveform of the second driving voltage. Figure 9 And which is the waveform of the first driving voltage. Within the same unit time T, the first driving voltage 51 has a first number of pulse waves, and the second driving voltage 52 has a second number of pulse waves. And through comparison, it can be known that within the unit time T, the first number of pulse waves is greater than the second number of pulse waves. And experiments prove that the first number of pulse waves is at least 5 times greater than the second number of pulse waves. And the more times the multiple is, the better the display effect is, that is, the less black shadow residue in the aforementioned photo.

[0075] Continuing, the display panel 20 has a plurality of common electrode scanning lines 23, and the common electrode scanning lines 23 are electrically coupled to the liquid crystal driving unit 50 to display the screen 22. The imaging driving pixels 24 are displayed by at least one common electrode scanning line 23 having the second driving voltage 52 with the second number of pulse waves, and the non-imaging driving pixels 26 are displayed by other common electrode scanning lines 23 having the first driving voltage 51 with the first number of pulse waves. Among them, the common electrode scanning lines 23 of the first driving voltage 51 may cause the overall reflectance to be brighter or darker due to voltage parameters or time parameters, but ultimately will not affect the imaging effect.

[0076] First, taking Figure 9 the curve description of the medium bright state as an example, the first driving voltage 51 further has a wave peak 94 and a wave valley 96, where the unit time T is one of a positive half-wave cycle 84 period or a negative half-wave cycle 86 period. That is to say, the positive half-wave cycle 84 period and the negative half-wave cycle 86 period can be used to represent the unit time T respectively, and the unit time T of both can be the same or different, that is, the positive half-wave cycle 84 of the unit time T and the negative half-wave cycle 86 of the unit time T can be the same or different.

[0077] For another example Figure 9 as shown, the number of the first pulse waves in the positive half-wave cycle 84 period within the unit time T is equal to the number of the first pulse waves in the negative half-wave cycle 86 period. However, compared with Figure 1 , the number of the first pulse waves is greater than the number of the second pulse waves whether in the positive half-wave cycle 84 period or the negative half-wave cycle 86 period. And in other embodiments, the number of the first pulse waves in the positive half-wave cycle 84 period within the unit time T and the number of the first pulse waves in the negative half-wave cycle 86 period can also be not equal.

[0078] Please refer to Figure 10 and compare Figure 1 , Figure 10 which is the waveform diagram of the second embodiment within the unit time in the Non-Selection stage of the present invention. In Figure 10 and Figure 1 , in the first driving voltage 51, the number of the first pulse waves within the unit time T is a first pulse wave frequency, and in the second driving voltage 52, the number of the second pulse waves within the unit time T is a second pulse wave frequency. In comparison, the first pulse wave frequency within the same unit time T is greater than the second pulse wave frequency. And taking Figure 10Illustrated by the waveform of the bright state, within the unit time T, in the positive half-wave cycle 84 period and the negative half-wave cycle 86 period, there are two selected first pulse wave frequencies, which are respectively a local first pulse wave frequency and another local first pulse wave frequency, and the frequencies between the two can be unequal.

[0079] Please refer to Figure 11 , Figure 11 is the waveform diagram of the third embodiment within the unit time of the Non-Selection stage of the present invention. Within the unit time T, the positive half-wave cycle 84 period and the negative half-wave cycle 86 period can respectively have discontinuous waveforms. Taking the curve of the bright state as an example, in the positive half-wave cycle 84 period and the negative half-wave cycle 86 period, the wave peaks 94 and wave valleys 96 of the first pulse wave are respectively continuous for a period of time within the unit time T. The purpose of lasting for a period of time is to save energy because there is an energy consumption problem when the cholesteric liquid crystal display 1 instantaneously converts voltage.

[0080] Please refer to Figure 13 and compare Figure 12 , and Figure 1 , Figure 13 is the waveform diagram of the fourth embodiment within the unit time of the Non-Selection stage of the present invention, and is also the waveform diagram in the complex PWM driving mode. Figure 12 is the waveform diagram of the Selection stage of the complex PWM driving mode in the prior art. Comparing Figure 1 and Figure 12 it can be seen that within the unit time T Figure 12 has twice the number and frequency of the second pulse wave, so it is regarded as a complex driving mode. Referring to Figure 13 again, 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 cycle 84 and the positive half-wave cycle 84 respectively, as circled. In the unselected voltage, in the positive half-wave cycle 84 period and the negative half-wave cycle 86 period, the peak values of the first pulse wave will be fixed voltage for a period of time respectively, and the frequencies and numbers of the first pulse wave in the positive half-wave cycle 84 period and the negative half-wave cycle 86 period can be different respectively. Continuing to compare Figure 13 with Figure 12 , as described above, the first driving voltage 51 has more quantity and frequency than the second driving voltage 52 within the unit time T.

[0081] Furthermore, the present invention can also be a driving method 2 for a cholesteric liquid crystal display. Please refer to Figure 14 and cooperate withFigure 8 , Figure 14 Figure 14 is a flowchart of the driving method of the cholesteric liquid crystal display of the present invention. The cholesteric liquid crystal display includes a display panel 20 for displaying a picture 22, and the picture 22 is composed of a stripe of imaging driving pixels 24 and a plurality of non-imaging driving pixels 26. The driving method includes the following steps:

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

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

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

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

[0086] Please refer to Figure 15 and Figure 16 and compare Figure 7 , Figure 15 Figure 15 is a photo of the actual performance of the first embodiment of the present invention, which is in a state where all of the first driving voltage 51 is applied with a high-frequency voltage. Figure 16 Figure 16 is a photo of the actual performance of the second embodiment of the present invention, which is in a state where the first driving voltage 51 is partially applied with a high-frequency voltage. Compared with Figure 7 , by applying the high-frequency first driving voltage 51, the display effect will be better than the original Figure 7 . That is to say, there are fewer black shadows generated by the bottle cap in the center of the photo. And it has been proved by experiments that the effect of using all high-frequency voltages in the first driving voltage 51 is better than that of only partially using high frequencies. In other words, there are fewer black shadows generated in the state where all of the first driving voltage 51 is applied with a high-frequency voltage.

[0087] In summary, by using the cholesterol liquid crystal display and its driving method provided by the present invention, it can be known that by adopting various high-frequency means, such as all high-frequency, local high-frequency, or the first driving voltage 51 of discontinuous high-frequency, in different unit times T in the unselected state, the contrast can be increased and the reflectivity can be improved. Among them, in the unit time T, the number of the first pulse waves is at least more than 5 times that of the second pulse waves, and the more the multiple, the better the display effect, that is, the fewer the black shadows generated.

[0088] In addition, those skilled in the art should understand that although there are many problems in the prior art, each embodiment or technical solution of the present invention can be improved only in one or several aspects, and it is not necessary to solve all the technical problems listed in the prior art or the background art at the same time. Those skilled in the art should understand that the content not mentioned in a claim should not be regarded as a limitation to the claim.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements 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 cholesteric liquid crystal display includes: A display panel for displaying an image, the image being composed of one imaging driving pixel and a plurality of non-imaging driving pixels; and A liquid crystal driving unit for driving the display panel to display the image by simultaneously applying a plurality of first driving voltages corresponding to the non-imaging driving pixels and a second driving voltage applied to the imaging driving pixel, wherein the first driving voltage has a first number of pulse waves within a unit time, and the second driving voltage has a second number of pulse waves within the unit time, and the first number of pulse waves is greater than the second number of pulse waves.

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

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

4. The cholesterol liquid crystal display according to claim 1, wherein: Wherein the second driving voltage is a selection voltage and the first driving voltage is a non-selection voltage.

5. The cholesterol liquid crystal display according to claim 1, wherein: Wherein the first driving voltage further has a peak and a trough, the peak and the trough being continuous for a period of time respectively.

6. The cholesterol liquid crystal display according to claim 3, characterized in that: Wherein the unit time is one of a positive half-wave cycle period or a negative half-wave cycle period.

7. The cholesterol liquid crystal display according to claim 6, characterized in that: Wherein the first number of pulse waves in the positive half-wave cycle period of the non-selection voltage and the first number of pulse waves in the negative half-wave cycle period are either equal or not equal.

8. The cholesterol liquid crystal display according to claim 6, wherein: Wherein the first number of pulse waves within the unit time is a first pulse wave frequency, the second number of pulse waves within the unit time is a second pulse wave frequency, and the first pulse wave frequencies in the positive half-wave cycle period or the negative half-wave cycle period in the non-selection state are equal or not equal in some local parts.

9. The cholesterol liquid crystal display according to claim 6, wherein: Wherein the first number of pulse waves within the unit time is a first pulse wave frequency, the second number of pulse waves within the unit time is a second pulse wave frequency, and the first pulse wave frequency in either the positive half-wave cycle period or the negative half-wave cycle period in the non-selection state is a non-equal voltage peak frequency.

10. The cholesterol liquid crystal display according to claim 6, wherein: Wherein the first number of pulse waves is the number of a plurality of first pulse waves within the unit time, and the peak value of the first pulse wave in the positive half-wave cycle period or the negative half-wave cycle period in the non-selection state is a constant voltage for a period of time.

11. A driving method for a cholesterol liquid crystal display, characterized in that: The cholesteric liquid crystal display includes a display panel for displaying an image, and the image is composed of one imaging driving pixel and a plurality of non-imaging driving pixels. The driving method includes the following steps: Apply a first driving voltage having a first number of pulse waves to the non-imaging driving pixels within a unit time, and apply a second driving voltage having a second number of pulse waves to the imaging driving pixels within the unit time to drive the display panel, wherein the first number of pulse waves is greater than the second number of pulse waves; and The display panel is used to display the picture.

12. The driving method of the cholesterol liquid crystal display according to claim 11, characterized in that: Wherein the display panel has a plurality of common electrode scan lines, the common electrode scan lines are electrically coupled to the liquid crystal driving unit to display the picture, the imaging driving pixels are displayed by at least one common electrode scan line having the second driving voltage with the second number of pulse waves, and the non-imaging driving pixels are displayed by other common electrode scan lines having the first driving voltage with the first number of pulse waves.

13. The driving method of the cholesterol liquid crystal display according to claim 11, characterized in that: Wherein within the unit time, the first number of pulse waves is greater than 5 times the second number of pulse waves.

14. The driving method of the cholesterol liquid crystal display according to claim 11, characterized in that: Wherein the second driving voltage is a selection voltage and the first driving voltage is a non-selection voltage.

15. The driving method of the cholesterol liquid crystal display according to claim 11, wherein: Wherein the first driving voltage further has a wave peak and a wave valley, and the wave peak and the wave valley are continuous for a period of time respectively.

16. The driving method of a cholesteric liquid crystal display according to claim 13, characterized in that: Wherein the unit time is one of a positive half-wave cycle period or a negative half-wave cycle period.

17. The driving method of a cholesterol liquid crystal display according to claim 16, characterized in that: Wherein the number of the first pulse waves in the positive half-wave cycle period of the non-selection voltage and the number of the first pulse waves in the negative half-wave cycle period are either equal or not equal.

18. The driving method of the cholesterol liquid crystal display according to claim 16, wherein: Wherein the number of the first pulse waves within the unit time is a first pulse wave frequency, the number of the second pulse waves within the unit time is a second pulse wave frequency, and the first pulse wave frequency in a local part of the positive half-wave cycle period or the negative half-wave cycle period in the non-selection state is equal to or not equal to the first pulse wave frequency in another local part.

19. The driving method of the cholesterol liquid crystal display according to claim 16, wherein: Wherein the number of the first pulse waves within the unit time is a first pulse wave frequency, the number of the second pulse waves within the unit time is a second pulse wave frequency, and the first pulse wave frequency in either the positive half-wave cycle period or the negative half-wave cycle period in the non-selection state is a non-equal voltage peak frequency.

20. The driving method of a cholesterol liquid crystal display according to claim 16, wherein: Wherein the first number of pulse waves is the number of a plurality of first pulse waves within the unit time, and the peak value of the first pulse wave in the positive half-wave cycle period or the negative half-wave cycle period in the non-selection state is a fixed value voltage for a period of time.

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