A liquid crystal display panel and its driving method, and a display device thereof.

Abstract

The application discloses a liquid crystal display panel and a driving method thereof and a display device. The liquid crystal display panel comprises a display area and a plurality of data signal lines arranged in the display area. The display area comprises a first display area and a second display area arranged along the extension direction of the data signal lines. The refresh frequency of the first display area is greater than that of the second display area. The liquid crystal display panel further comprises a data driving module electrically connected with the plurality of data signal lines. The data driving module is used for adjusting the voltage polarity of the data signal transmitted by the plurality of data signal lines in each refresh frame of the first display area according to the ratio of the refresh frequency of the first display area to that of the second display area, so that the voltage polarity of the data signal received by the second display area in any two adjacent refresh periods is opposite. The refresh period comprises at least two refresh frames. The above technical scheme is used for solving the problem that the liquid crystal is polarized due to the consistent voltage polarity of each charging in the prior art.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a liquid crystal display panel, its driving method, and a display device. Background Technology

[0002] As display technology demands increase, so do the requirements for LCD panels. When an LCD panel displays multiple screens, each frame in the high-frequency region is charged, while a single refresh frame in the low-frequency region corresponds to multiple high-frequency refresh frames. This means that some high-frequency refresh frames in the low-frequency display region may require charging, while others may not. This could result in the voltage polarity of the low-frequency region being either positive or negative each time it is charged, potentially causing abnormal liquid crystal polarization. Summary of the Invention

[0003] This invention provides a liquid crystal display panel and its driving method and display device to solve the problem of liquid crystal polarization caused by the consistent polarity of the charging voltage in the prior art.

[0004] In a first aspect, embodiments of the present invention provide a liquid crystal display panel, including a display area and a plurality of data signal lines located in the display area; the display area includes a first display area and a second display area arranged along the extending direction of the data signal lines, wherein the refresh frequency of the first display area is greater than the refresh frequency of the second display area;

[0005] The liquid crystal display panel further includes a data driving module, which is electrically connected to the multiple data signal lines.

[0006] The data driving module is used to adjust the voltage polarity of the data signals transmitted by the multiple data signal lines in each refresh frame of the first display area according to the ratio of the refresh frequency of the first display area to the refresh frequency of the second display area, so that the voltage polarity of the data signals received by the second display area in any two adjacent refresh cycles is opposite; the refresh cycle includes at least two refresh frames.

[0007] Secondly, embodiments of the present invention provide a driving method for a liquid crystal display panel, the liquid crystal display panel including a display area and a plurality of data signal lines located in the display area; the display area includes a first display area and a second display area arranged along the extension direction of the data signal lines, the refresh frequency of the first display area being greater than the refresh frequency of the second display area; the liquid crystal display panel further includes a data driving module, the data driving module being electrically connected to the plurality of data signal lines;

[0008] The driving method includes:

[0009] Obtain the refresh rate of the first display area and the refresh rate of the second display area;

[0010] Calculate the ratio of the refresh frequency of the first display area to the refresh frequency of the second display area, and adjust the voltage polarity of the data signals transmitted by multiple data signal lines in each refresh frame of the first display area according to the ratio, so that the voltage polarity of the data signals received by the second display area in any two adjacent refresh cycles is opposite; the refresh cycle includes at least two refresh frames.

[0011] Thirdly, embodiments of the present invention provide a display device, including a display panel as described in the first aspect.

[0012] The solution provided by this invention, by setting the display area of ​​the liquid crystal display panel to include a first display area and a second display area arranged along the extension direction of the data signal lines, wherein the refresh frequency of the first display area is greater than the refresh frequency of the second display area, enables the liquid crystal display panel to achieve split-screen display with different refresh frequencies. The liquid crystal display panel also includes a data driving module, which is electrically connected to multiple data signal lines. The data driving module is used to adjust the voltage polarity of the data signals transmitted by the multiple data signal lines in each refresh frame of the first display area according to the ratio of the refresh frequency of the first display area to the refresh frequency of the second display area, so that the voltage polarity of the data signals received by the second display area in any two adjacent refresh cycles is opposite; the refresh cycle includes at least two refresh frames, thus ensuring that the voltage polarity of the data signals received by the second display area in any two adjacent refresh cycles is opposite, effectively preventing liquid crystal polarization and improving the display effect of the liquid crystal display panel.

[0013] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0014] 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, although the drawings described below are some specific embodiments of the present invention, those skilled in the art can extend and extend the basic concepts of the device structure, driving method and manufacturing method disclosed and indicated by various embodiments of the present invention to other structures and drawings. Undoubtedly, these should all be within the scope of the claims of the present invention.

[0015] Figure 1 This is a schematic diagram of the structure of a liquid crystal display panel provided in an embodiment of the present invention;

[0016] Figure 2 A data driving timing diagram for a liquid crystal display panel provided in an embodiment of the present invention;

[0017] Figure 3 This is a data driving timing diagram for another liquid crystal display panel provided in an embodiment of the present invention;

[0018] Figure 4 This is another data driving timing diagram of a liquid crystal display panel provided in an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of another liquid crystal display panel provided in an embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of the structure of another liquid crystal display panel provided in an embodiment of the present invention;

[0021] Figure 7 A flowchart illustrating a driving method for a liquid crystal display panel provided in an embodiment of the present invention;

[0022] Figure 8 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this invention. Obviously, the described embodiments are only some embodiments of this invention, not all embodiments. Based on the basic concepts disclosed and indicated in the embodiments of this invention, all other embodiments obtained by those skilled in the art are within the scope of protection of this invention.

[0024] Figure 1 This is a schematic diagram of the structure of a liquid crystal display panel provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the liquid crystal display panel 100 includes a display area AA and multiple data signal lines D located in the display area AA; the display area AA includes a first display area AA1 and a second display area AA2 arranged along the extension direction of the data signal lines D, and the refresh frequency of the first display area AA1 is greater than the refresh frequency of the second display area AA2; the liquid crystal display panel 100 also includes a data driving module 10, which is electrically connected to the multiple data signal lines D; the data driving module 10 is used to adjust the voltage polarity of the data signal transmitted by the multiple data signal lines D in each refresh frame T of the first display area AA1 according to the ratio of the refresh frequency of the first display area AA1 to the refresh frequency of the second display area AA2, so that the voltage polarity of the data signal received by the second display area AA2 in any two adjacent refresh cycles t is opposite; the refresh cycle t includes at least two refresh frames T.

[0025] The arrangement of the first display area AA1 and the second display area AA2 includes, but is not limited to, the following: Figure 1 As shown, the first display area AA1 can also be the side of the second display area AA2 closest to the data driving module 10, and can be set according to actual conditions. It should be noted that the number of first display areas AA1 and second display areas AA2 in the LCD panel 100 can be one or more; no specific limitation is made here. Figure 1 This is merely an example illustration, but is not limited to.

[0026] The inventors discovered that, for liquid crystal display panels, the data signals provided by the data signal line D for adjacent frames are typically opposite. This is to reverse the direction of the electric field controlling the rotation of the liquid crystal, preventing polarization and image retention. Since the refresh rate of the first display area AA1 is higher than that of the second display area AA2 (i.e., the first display area AA1 is a high-frequency display area, and the second display area AA2 is a low-frequency display area), in each refresh frame of the first display area AA1, the data signal line D provides data signals to the sub-pixels in the first display area AA1 to charge them. However, for the second display area AA2, because its refresh rate is lower than that of the first display area AA1, the data signal provided by the data signal line D does not charge the sub-pixels in the second display area AA2 in every refresh frame. For example, in the first display area AA1... The refresh rate is 120Hz, and the refresh rate of the second display area AA2 is 60Hz. At this time, the sub-pixels of the second display area AA2 are charged in the first refresh frame, and then stop charging in the second refresh frame. Then they continue charging in the third refresh frame, and stop charging in the fourth refresh frame, and so on. That is, the sub-pixels of the second display area AA2 are charged once every refresh frame. This will cause the voltage polarity of the data signal received by the sub-pixels of the second display area AA2 to be the same each time they are charged. This will easily cause polarization of the liquid crystal of the second display area AA2, thereby affecting the normal display of the liquid crystal display panel 100.

[0027] Based on this, the data driving module 10 can adjust the voltage polarity of the data signals transmitted by multiple data signal lines D in each refresh frame of the first display area AA1 according to the ratio of the refresh frequency of the first display area AA1 to the refresh frequency of the second display area AA2. This ensures that the voltage polarity of the data signals received by the second display area AA2 in any two adjacent refresh cycles is opposite. It can be understood that one refresh cycle of the second display area AA2 is one low-frequency refresh frame corresponding to the second display area AA2. A refresh cycle includes at least two refresh frames. It should be noted that the refresh frame here refers to the high-frequency refresh frame corresponding to the first display area AA1; therefore, a refresh cycle can include at least two refresh frames. The sub-pixels of the second display area AA2 are charged once within one refresh frame of each refresh cycle, while the data signal voltage in the sub-pixels remains unchanged in the remaining refresh frames. Since the voltage polarity of the data signals received by the second display area AA2 in any two adjacent refresh cycles is opposite, this effectively prevents polarization of the liquid crystal. Meanwhile, since the first display area AA1 is charged in each refresh frame, it can still receive data signals with different voltage polarities, preventing the liquid crystal from becoming polarized and ensuring the normal display of the entire liquid crystal display panel.

[0028] In this embodiment, the liquid crystal display panel is configured to include a first display area and a second display area arranged along the extension direction of the data signal lines. The refresh rate of the first display area is greater than that of the second display area, enabling the liquid crystal display panel to achieve split-screen display with different refresh rates. The liquid crystal display panel also includes a data driving module electrically connected to multiple data signal lines. The data driving module adjusts the voltage polarity of the data signals transmitted by the multiple data signal lines in each refresh frame of the first display area according to the ratio of the refresh rate of the first display area to that of the second display area. This ensures that the voltage polarity of the data signals received by the second display area in any two adjacent refresh cycles is opposite. Since a refresh cycle includes at least two refresh frames, this ensures that the voltage polarity of the data signals received by the second display area in any two adjacent refresh cycles is opposite, effectively preventing liquid crystal polarization and improving the display effect of the liquid crystal display panel.

[0029] Optional, continue to refer to Figure 1 The display area AA includes multiple sub-pixels P arranged in an array. The sub-pixels P include a first sub-pixel P1 located in the first display area AA1 and a second sub-pixel P2 located in the second display area AA2. Sub-pixels P in the same column are electrically connected to the same data signal line D. In each refresh frame, the data signals transmitted by the multiple data signal lines D charge the first sub-pixel P1. In the first refresh frame of each refresh cycle, the data signals transmitted by the multiple data signal lines D charge the second sub-pixel P2.

[0030] In the display area AA, the colors of each column of sub-pixels P arranged in multiple arrays can be the same or different, and no specific limitation is made here. Sub-pixels P can be red sub-pixels, green sub-pixels, blue sub-pixels, white sub-pixels or yellow sub-pixels, etc., and no specific limitation is made in this invention.

[0031] Specifically, within each refresh frame, the first sub-pixel P1 located in the first display area AA1 is in the open state, allowing the data signals transmitted by the multiple data signal lines D to charge the first sub-pixel P1. In the first refresh frame of each refresh cycle, the second sub-pixel P2 located in the second display area AA2 is in the open state, allowing the data signals transmitted by the multiple data signal lines D to charge the second sub-pixel P2. In the remaining refresh frames of each refresh cycle, the second sub-pixel P2 is in the closed state, preventing the data signals transmitted by the multiple data signal lines D from charging the second sub-pixel P2. That is, the data signal on the second sub-pixel P2 maintains its previous voltage polarity.

[0032] Optional, Figure 2 A data driving timing diagram for a liquid crystal display panel provided in an embodiment of the present invention, in conjunction with reference to the reference. Figure 1 and Figure 2 As shown, the ratio of the refresh frequency of the first display area AA1 to the refresh frequency of the second display area AA2 is N, where N is an even number; the refresh period t includes N refresh frames T; the data driving module 10 is used to adjust the voltage polarity of the data signals transmitted by multiple data signal lines D in the same refresh period t to be the same, and the voltage polarity of the data signals transmitted in two adjacent refresh periods t to be opposite.

[0033] The specific values ​​of the refresh frequency of the first display area AA1 and the refresh frequency of the second display area AA2 can be set according to the actual situation. This embodiment of the invention does not impose specific limitations on this, as long as the ratio N between the two is an even number.

[0034] For example, taking N=2 as an example, Figure 2 An example is shown showing the data signal V transmitted by any one of the multiple data signal lines D. d The driving timing diagram shows that the refresh cycle t includes two refresh frames T, and the data signal V transmitted in the previous refresh cycle t is... d The voltage polarity of all of them is positive (i.e., +5V), which makes the charging voltage signal V of the first sub-pixel P1 in the first display area AA1... p1 With data signal V d Synchronization, while the charging voltage signal V of the second sub-pixel P2 in the second display area AA2. p2 The data signal V within the first refresh frame T within the refresh period t. d(i.e., positive polarity voltage) are the same. Since the second sub-pixel P2 no longer charges during the second refresh frame T, the charging voltage signal V of the second sub-pixel P2 is... p2 The voltage will be maintained as before. The data signal V transmitted in the next refresh cycle t... d The voltage polarity of all of them is negative (i.e., -5V), which causes the charging voltage signal V of the second sub-pixel P2 in the second display area AA2 to be negative during the next refresh cycle t. p2 The data signal V of the first refresh frame T within the refresh period t d (i.e., negative polarity voltage) are the same. Thus, when N is an even number, by adjusting the voltage polarity of the data signals transmitted by multiple data signal lines D within the same refresh cycle t to be the same, and the voltage polarity of the data signals transmitted in two adjacent refresh cycles t to be opposite, it can be made so that the voltage polarity of the data signal received by the second sub-pixel P2 of the second display area AA2 during each charging is different from the voltage polarity of the data signal received during the previous charging, thereby effectively avoiding liquid crystal polarization and improving the display effect of the liquid crystal display panel 100.

[0035] Optional, Figure 3 This is a data driving timing diagram for another liquid crystal display panel provided in an embodiment of the present invention, in conjunction with reference to the reference. Figure 1 and Figure 3 As shown, the ratio of the refresh frequency of the first display area AA1 to the refresh frequency of the second display area AA2 is N, where N is an even number and N / 2 is an odd number greater than 1; the refresh period t includes N refresh frames T, and the refresh period t includes N / 2 refresh sub-cycles t1, where each refresh sub-cycle t1 includes two adjacent refresh frames T; the data driving module 10 is used to adjust the voltage polarity of the data signals transmitted by multiple data signal lines D within the same refresh sub-cycle t1 to be the same, the voltage polarity of the data signals transmitted within two adjacent refresh sub-cycles t1 within the same refresh period t to be opposite, and the voltage polarity of the data signals transmitted within two adjacent refresh periods t to be opposite.

[0036] For example, taking N=6 as an example, Figure 3 An example is shown showing the data signal V transmitted by any one of the multiple data signal lines D. d The driving timing diagram shows that the refresh cycle t includes six refresh frames T, and the same refresh cycle t includes three refresh sub-cycles t1. Each refresh sub-cycle t1 includes two adjacent refresh frames T. The data signal V transmitted within the same refresh sub-cycle t1 is... d The voltage polarities are the same (e.g., both are positive voltage +5V or negative voltage -5V), and the data signals V transmitted within two adjacent refresh sub-cycles t1 in the same refresh cycle t are... d The voltage polarity is opposite, reference Figure 3The data signal V transmitted within the first refresh sub-cycle t1 of the previous refresh cycle t d When the voltage polarity is positive, the data signal V transmitted during the second refresh sub-cycle t1 d The voltage polarity is negative, and the data signal V transmitted during the third refresh sub-cycle t1 is... d The voltage polarity is positive. This causes the charging voltage signal V of the first sub-pixel P1 in the first display area AA1 to be positive. p1 With data signal V d Synchronization, while the charging voltage signal V of the second sub-pixel P2 in the second display area AA2. p2 The data signal V within the first refresh frame T within the refresh period t. d With the same positive polarity voltage, during the remaining five refresh frames T, the second sub-pixel P2 no longer charges, resulting in the charging voltage signal V of the second sub-pixel P2 being... p2 The voltage remains unchanged. Since the voltage polarity of the data signals transmitted within two adjacent refresh cycles t is opposite, when entering the next refresh cycle t, the data signals V transmitted within the three consecutive refresh sub-cycles t1 of that refresh cycle will... d The voltage polarities are negative, positive, and negative in sequence, causing the charging voltage signal V of the second sub-pixel P2 in the second display area AA2 to be negative in the next refresh cycle t. p2 The data signal V of the first refresh frame T within the refresh period t d (i.e., negative polarity voltage) are the same. Thus, when N is even and N / 2 is an odd number greater than 1, the voltage polarity of the data signals transmitted by multiple data signal lines D within the same refresh sub-cycle t1 can be adjusted to be the same, while the voltage polarity of the data signals transmitted within two adjacent refresh sub-cycles t1 within the same refresh cycle t is opposite, and the voltage polarity of the data signals transmitted within two adjacent refresh cycles t is also opposite. This ensures that the voltage polarity of the data signal received by the second sub-pixel P2 of the second display area AA2 during each charging is different from the voltage polarity of the data signal received during the previous charging, thereby effectively avoiding liquid crystal polarization and improving the display effect of the liquid crystal display panel 100.

[0037] Optionally, based on any of the above embodiments, 2≤N≤10.

[0038] Specifically, when the ratio N of the refresh frequency of the first display area AA1 to the refresh frequency of the second display area AA2 is too large, if the voltage polarity of the data signals transmitted by multiple data signal lines D in the same refresh cycle t is adjusted to be the same, the voltage of the data signal received by the first sub-pixel P1 in the first display area AA1 in the same refresh cycle t within N refresh frames T will always be of the same polarity. This will also easily lead to polarization of the liquid crystal. Therefore, setting 2≤N≤10 can effectively avoid the problem of liquid crystal polarization caused by charging the first sub-pixel P1 in the first display area AA1 with the same polarity voltage for a long time, thereby ensuring that the liquid crystal display panel has a good display effect.

[0039] Optional, Figure 4 This is a data driving timing diagram for another liquid crystal display panel provided in an embodiment of the present invention, in conjunction with reference to the reference. Figure 1 and Figure 4 As shown, the ratio of the refresh frequency of the first display area AA1 to the refresh frequency of the second display area AA2 is M, where M is an odd number greater than 1; the refresh period t includes M refresh frames T; the data driving module 10 is used to adjust the voltage polarity of the data signals transmitted in two adjacent refresh frames T within the same refresh period t, and the voltage polarity of the data signals transmitted in two adjacent refresh periods t is opposite.

[0040] For example, taking M=3 as an example, Figure 4 An example is shown showing the data signal V transmitted by any one of the multiple data signal lines D. d The driving timing diagram shows that the refresh period t includes three refresh frames T. Within the same refresh period t, the voltage polarities of the data signals transmitted in two adjacent refresh frames T are opposite. (Refer to...) Figure 4 The data signal V transmitted within the three refresh frames T of the previous refresh cycle t d The voltage polarities are positive, negative, and positive in sequence, which makes the charging voltage signal V of the first sub-pixel P1 in the first display area AA1... p1 With data signal V d Synchronization, while the charging voltage signal V of the second sub-pixel P2 in the second display area AA2. p2 The data signal V within the first refresh frame T within the refresh period t. d (i.e., positive polarity voltage) are the same. Since the second sub-pixel P2 no longer charges during the second refresh frame T, the charging voltage signal V of the second sub-pixel P2 is... p2 The previous voltage is maintained. Since the voltage polarity of the data signals transmitted in two adjacent refresh cycles t is opposite, the data signal V transmitted in the next refresh cycle t... dThe voltage polarities are negative, positive, and negative in sequence, causing the charging voltage signal V of the second sub-pixel P2 in the second display area AA2 to be negative in the next refresh cycle t. p2 The data signal V of the first refresh frame T within the refresh period t d (i.e., negative polarity voltage) are the same. Thus, when M is an odd number greater than 1, by adjusting the voltage polarity of the data signals transmitted in two adjacent refresh frames T within the same refresh cycle t, and by ensuring that the voltage polarity of the data signals transmitted in two adjacent refresh cycles t is opposite, the voltage polarity of the data signal received by the second sub-pixel P2 of the second display area AA2 is different from the voltage polarity of the data signal received during the previous charge, thereby effectively avoiding liquid crystal polarization and improving the display effect of the liquid crystal display panel 100.

[0041] Optionally, based on any of the above embodiments, within the same refresh frame T, the voltage polarities of the data signals transmitted by any two adjacent data signal lines D are opposite.

[0042] Specifically, the opposite voltage polarity of the data signals transmitted by two adjacent data signal lines D is called column inversion, which makes the flicker waveforms of the sub-pixels in adjacent columns have a 180° phase difference, which to some extent suppresses flicker. At the same time, the use of column inversion makes the power consumption of the liquid crystal display panel lower.

[0043] Optional, Figure 5 This is a schematic diagram of another liquid crystal display panel provided in an embodiment of the present invention, as shown below. Figure 5 As shown, the display area AA includes multiple scan signal lines S; the liquid crystal display panel 100 also includes a scan driving module 20, which includes a first scan driving unit 21 and a second scan driving unit 22; the first scan driving unit 21 is electrically connected to the multiple scan signal lines S located in the first display area AA1, and the second scan driving unit 22 is electrically connected to the multiple scan signal lines S located in the second display area AA2; the refresh frequency of the first scan signal provided by the first scan driving unit 21 is greater than the refresh frequency of the second scan signal provided by the second scan driving unit 22.

[0044] Specifically, the first scan signal provided by the first scan driving unit 21 can control the first sub-pixel P1 in the first display area AA1 to open, so that the data signal provided by the data signal line D charges the first sub-pixel P1. Similarly, the second scan driving signal provided by the second scan driving unit 22 can control the second sub-pixel P2 in the second display area AA2 to open, so that the data signal provided by the data signal line D charges the second sub-pixel P2. Since the refresh rate of the first display area AA1 is greater than the refresh rate of the second display area AA2, by setting the refresh rate of the first scan signal provided by the first scan driving unit 21 to be greater than the refresh rate of the second scan signal provided by the second scan driving unit 22, the different refresh rate requirements of the first display area AA1 and the second display area AA2 can be achieved.

[0045] Optionally, the refresh frequency of the first scan signal is greater than or equal to the refresh frequency of the first display area.

[0046] Specifically, the frequency of the first scan signal can be greater than or equal to the refresh frequency of the first display area AA1, and can be set according to the actual situation. Preferably, the refresh frequency of the first scan signal can be set to be equal to the refresh frequency of the first display area AA1 to achieve low power consumption of the liquid crystal display panel. Similarly, the refresh frequency of the second scan signal can also be greater than or equal to the refresh frequency of the second display area AA2. Preferably, the refresh frequency of the second scan signal can be set to be equal to the refresh frequency of the second display area AA2 to achieve low power consumption of the liquid crystal display panel.

[0047] In another alternative embodiment, Figure 6 This is a schematic diagram of another liquid crystal display panel provided in an embodiment of the present invention, as shown below. Figure 6 As shown, the display area AA includes multiple scan signal lines S; the liquid crystal display panel 100 also includes a scan driving module 20 and a scan signal output control module 30; the scan driving module 20 is electrically connected to multiple scan signal lines S located in the first display area AA1 through the scan signal output control module 30, and is also electrically connected to multiple scan signal lines S located in the second display area AA2 through the scan signal output control module 30; the scan signal output control module 30 is used to control the conduction or disconnection of the path of the scan signal output by the scan driving module 20 to the multiple scan signal lines S in the first display area AA1 and the second display area AA2, so that the refresh frequency of the first display area AA1 is greater than the refresh frequency of the second display area AA2.

[0048] Specifically, with Figure 5The difference is that in this embodiment, the scanning signals controlling the opening of the first sub-pixel P1 in the first display area AA1 and the second sub-pixel P2 in the second display area AA2 are provided by the same scanning driving module 20. Since the refresh rate of the first display area AA1 is greater than that of the second display area AA2, a scanning signal output control module 30 can be connected in series between the scanning driving module 20 and the multiple scanning signal lines S in the display area AA. The scanning signal output control module 30 controls the conduction or disconnection of the path from which the scanning signal output by the scanning driving module 20 is transmitted to the multiple scanning signal lines S in the first display area AA1 and the second display area AA2. That is, when both the first sub-pixel P1 in the first display area AA1 and the second sub-pixel P2 in the second display area AA2 are charging, the scanning signal output control module 30 can be turned on, so that the scanning signal output by the scanning driving module 20 is transmitted to the multiple scanning signal lines S in the first display area AA1 and the second display area AA2 to control the opening of the first sub-pixel P1 and the second sub-pixel P2. When the second sub-pixel P2 in the second display area AA2 does not need to be charged, the scan signal output control module 30 can be controlled to disconnect the transmission path from the multiple scan signal lines S in the second display area AA2, so that the scan signal output by the scan drive module 20 cannot continue to be transmitted to the multiple scan signal lines S in the second display area AA2, and the second sub-pixel P2 cannot be opened for charging.

[0049] Optionally, the scan signal output control module 30 may include multiple gating switches. Figure 6 (Not shown in the image), each selector switch is connected in series between the scan drive module 20 and a scan signal line S. Multiple selector switches can be used to time-divisionally activate the second sub-pixel P2 in the second display area AA2 within a refresh frame where charging is required, causing the second sub-pixel P2 in the second display area AA2 to open row by row. This embodiment of the invention does not impose special limitations on the specific circuit structure of the scan signal output control module 30; it can be configured according to actual conditions.

[0050] It should be noted that in other embodiments, the scan signal output control module 30 can be integrated into the scan driving module 20. That is, the scan driving module 20 includes the scan signal output control module 30. By adjusting whether the valid scan signal of the control sub-pixel P is output, the refresh frequency of the first display area AA1 can be made higher than that of the second display area AA2. The specific implementation process can be selected according to the specific circuit. In addition, the scan signal output control module 30 can also be omitted, that is, the refresh frequency of the first display area AA1 can be made higher than that of the second display area AA2 by changing the driving timing of the scan driving module 20. The specific implementation process can be set according to the actual situation, and will not be described in detail here.

[0051] Based on the same inventive concept, embodiments of the present invention also provide a driving method for a liquid crystal display panel. Figure 7 A flowchart of a driving method for a liquid crystal display panel provided in an embodiment of the present invention is shown in the reference. Figure 1 and Figure 7 The liquid crystal display panel 100 includes a display area AA and multiple data signal lines D located in the display area AA; the display area AA includes a first display area AA1 and a second display area AA2 arranged along the extension direction of the data signal lines D, the refresh rate of the first display area AA1 is greater than the refresh rate of the second display area AA2; the liquid crystal display panel 100 also includes a data driving module 20, which is electrically connected to the multiple data signal lines D. The driving method includes the following steps:

[0052] S101. Obtain the refresh rate of the first display area and the refresh rate of the second display area.

[0053] S102. Calculate the ratio of the refresh frequency of the first display area to the refresh frequency of the second display area, and adjust the voltage polarity of the data signals transmitted by multiple data signal lines in each refresh frame of the first display area according to the ratio, so that the voltage polarity of the data signals received by the second display area in any two adjacent refresh cycles is opposite; the refresh cycle includes at least two refresh frames.

[0054] In this embodiment, by obtaining the refresh frequency of the first display area and the refresh frequency of the second display area, and then calculating the ratio of the refresh frequency of the first display area and the refresh frequency of the second display area, the voltage polarity of the data signals transmitted by multiple data signal lines in each refresh frame of the first display area is adjusted according to the ratio, so that the voltage polarity of the data signals received by the second display area in any two adjacent refresh cycles is opposite. The refresh cycle includes at least two refresh frames, ensuring that the voltage polarity of the data signals received by the second display area in any two adjacent refresh cycles is opposite, which can effectively prevent the liquid crystal from polarizing and improve the display effect of the liquid crystal display panel.

[0055] Furthermore, embodiments of the present invention also provide a display device. Figure 8 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention, such as... Figure 8 As shown, the display device 200 includes a liquid crystal display panel 100 provided in any embodiment of the present invention. The display device 200 provided in the embodiments of the present invention can be a mobile phone or any electronic product with display function, including but not limited to the following categories: television, laptop, desktop monitor, tablet computer, digital camera, smart bracelet, smart glasses, vehicle display, medical equipment, industrial control equipment, touch interactive terminal, etc. The embodiments of the present invention do not make any special limitations on these.

[0056] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A liquid crystal display panel, characterized by comprising: The display area comprises a first display area and a second display area arranged along the extension direction of the data signal lines, the refresh frequency of the first display area is greater than that of the second display area; The liquid crystal display panel further comprises a data driving module electrically connected with the plurality of data signal lines; The data driving module is configured to adjust the voltage polarity of the data signals transmitted by the plurality of data signal lines in each refresh frame of the first display area according to the ratio of the refresh frequency of the first display area to that of the second display area, so that the voltage polarity of the data signals received by the second display area in any two adjacent refresh periods is opposite.

2. The liquid crystal display panel according to claim 1, characterized by The display area comprises a plurality of sub-pixels arranged in an array, the sub-pixels comprise first sub-pixels in the first display area and second sub-pixels in the second display area; the sub-pixels in the same column are electrically connected with the same data signal line; In each refresh frame, the data signals transmitted by the plurality of data signal lines charge the first sub-pixels; In the first refresh frame in each refresh period, the data signals transmitted by the plurality of data signal lines charge the second sub-pixels.

3. The liquid crystal display panel according to claim 2, wherein The ratio of the refresh frequency of the first display area to that of the second display area is N, N is an even number; The refresh period comprises N refresh frames; The data driving module is configured to adjust the voltage polarity of the data signals transmitted by the plurality of data signal lines in the same refresh period to be the same, and the voltage polarity of the data signals transmitted in adjacent two refresh periods to be opposite.

4. The liquid crystal display panel according to claim 2, wherein The ratio of the refresh frequency of the first display area to that of the second display area is N, N is an even number and N / 2 is an odd number greater than 1; The refresh period comprises N refresh frames, and the refresh period comprises N / 2 refresh sub-periods, the refresh sub-period comprises adjacent two refresh frames; The data driving module is configured to adjust the voltage polarity of the data signals transmitted by the plurality of data signal lines in the same refresh sub-period to be the same, the voltage polarity of the data signals transmitted in adjacent two refresh sub-periods in the same refresh period to be opposite, and the voltage polarity of the data signals transmitted in adjacent two refresh periods to be opposite.

5. The liquid crystal display panel according to claim 3 or 4, characterized by 2≤N≤10。 6. The liquid crystal display panel according to claim 2, wherein The ratio of the refresh frequency of the first display area to that of the second display area is M, M is an odd number greater than 1; The refresh period comprises M refresh frames; The data driving module is configured to adjust the voltage polarity of the data signals transmitted by the plurality of data signal lines in adjacent two refresh frames in the same refresh period to be opposite, and the voltage polarity of the data signals transmitted in adjacent two refresh periods to be opposite.

7. The liquid crystal display panel according to claim 1, wherein In the same refresh frame, the voltage polarity of the data signals transmitted by any two adjacent data signal lines is opposite.

8. The liquid crystal display panel according to claim 1, wherein The display area comprises a plurality of scanning signal lines; The liquid crystal display panel further comprises a scan driving module, the scan driving module comprises a first scan driving unit and a second scan driving unit; The first scan driving unit is electrically connected with the plurality of scan signal lines in the first display area, and the second scan driving unit is electrically connected with the plurality of scan signal lines in the second display area; The refresh frequency of the first scan signal provided by the first scan driving unit is greater than the refresh frequency of the second scan signal provided by the second scan driving unit.

9. The liquid crystal display panel according to claim 8, wherein The refresh frequency of the first scan signal is greater than or equal to the refresh frequency of the first display area.

10. The liquid crystal display panel according to claim 1, wherein The display area comprises a plurality of scan signal lines; The liquid crystal display panel further comprises a scan driving module and a scan signal output control module; The scan driving module is electrically connected with the plurality of scan signal lines in the first display area and the plurality of scan signal lines in the second display area through the scan signal output control module; The scan signal output control module is used for controlling the conduction or disconnection of the path through which the scan signal output by the scan driving module is transmitted to the plurality of scan signal lines in the first display area and the second display area, so that the refresh frequency of the first display area is greater than the refresh frequency of the second display area.

11. A method of driving a liquid crystal display panel, characterized by, The liquid crystal display panel comprises a display area and a plurality of data signal lines in the display area; the display area comprises a first display area and a second display area arranged along the extension direction of the data signal lines, the refresh frequency of the first display area is greater than the refresh frequency of the second display area; the liquid crystal display panel further comprises a data driving module, the data driving module is electrically connected with the plurality of data signal lines; The driving method comprises: obtaining the refresh frequency of the first display area and the refresh frequency of the second display area; calculating the ratio of the refresh frequency of the first display area and the refresh frequency of the second display area, adjusting the voltage polarity of the data signal transmitted by the plurality of data signal lines in each refresh frame of the first display area according to the ratio, so that the voltage polarity of the data signal received by the second display area in any two adjacent refresh periods is opposite; the refresh period comprises at least two refresh frames.

12. A display device, characterized by comprising: The liquid crystal display panel comprises a display area and a plurality of data signal lines in the display area; the display area comprises a first display area and a second display area arranged along the extension direction of the data signal lines, the refresh frequency of the first display area is greater than the refresh frequency of the second display area; the liquid crystal display panel further comprises a data driving module, the data driving module is electrically connected with the plurality of data signal lines;

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