Display panel and driving method thereof, electronic device

Abstract

The present application provides a display panel and a driving method thereof, and an electronic device. The display panel includes a control module, a plurality of data signal lines, and a plurality of pixel units. The control module is used to obtain a display signal and generate a data signal according to the display signal. The data signal charges the corresponding pixel unit through the data signal line. The control module obtains a first grayscale voltage corresponding to a first pixel unit and a second grayscale voltage corresponding to a second pixel unit according to the display signal, calculates the absolute value of the difference between the first grayscale voltage and the second grayscale voltage to obtain a grayscale characteristic value. When the grayscale characteristic value is greater than or equal to a preset characteristic threshold, the control module generates a compensation signal, and the compensation signal pre-charges at least one of the first pixel unit and the second pixel unit through the data signal line. The pixel unit with a larger grayscale voltage difference is pre-charged according to the compensation signal, and then the pixel unit is charged according to the data signal, thereby improving the poor display effect caused by the sudden change of the grayscale picture.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a driving method thereof, and an electronic device. Background Art

[0002] Display technology has always been one of the important research directions in electronic devices. Before the display panel is configured and shipped out of the factory, it is usually necessary to perform a variety of display tests on the display panel. When the display panel displays a grayscale image, due to the transmission method of the data signal, when realizing the display of different grayscale images, if the grayscales of different grayscale images differ greatly, it is easy for the grayscale image to be brighter or darker, resulting in poor display effects of the display panel. Summary of the invention

[0003] The present application discloses a display panel, which can solve the technical problem of poor display effect of the display panel.

[0004] In a first aspect, the present application provides a display panel, which includes a control module, a plurality of data signal lines and a plurality of pixel units, wherein the control module is used to obtain a display signal and generate a data signal based on the display signal, wherein the data signal charges the corresponding pixel unit through the data signal line, and along the extension direction of the data signal line, the pixel unit includes at least a first pixel unit and a second pixel unit that are adjacent and electrically connected to the same data signal line, wherein the control module obtains a first grayscale voltage corresponding to the first pixel unit and a second grayscale voltage corresponding to the second pixel unit based on the display signal, calculates the absolute value of the difference between the first grayscale voltage and the second grayscale voltage to obtain a grayscale characteristic value, and when the grayscale characteristic value is greater than or equal to a preset characteristic threshold, the control module generates a compensation signal, and the compensation signal pre-charges at least one of the first pixel unit and the second pixel unit through the data signal line.

[0005] The grayscale voltages of the adjacent pixel units are calculated, the pixel units with larger grayscale voltage differences are pre-charged according to the compensation signal, and then the pixel units are charged according to the data signal, thereby improving the poor display effect caused by the sudden change of grayscale images.

[0006] Optionally, the time period in which the control module charges the pixel unit according to the data signal is a first time period, and the time period in which the control module pre-charges the pixel unit according to the compensation signal is a second time period, the first time period is greater than the second time period, the control module pre-charges the second pixel unit according to the compensation signal, and when the second grayscale voltage is greater than the first grayscale voltage, the starting time of the second time period is the same as the starting time of the first time period; the control module pre-charges the first pixel unit according to the compensation signal, and when the first grayscale voltage is greater than the second grayscale voltage, the ending time of the second time period is the same as the ending time of the first time period.

[0007] Optionally, the time period in which the control module charges the pixel unit according to the data signal is a first time period, and the time period in which the control module pre-charges the pixel unit according to the compensation signal is a second time period, the first time period is greater than the second time period, the control module pre-charges the first pixel unit according to the compensation signal, and when the second grayscale voltage is greater than the first grayscale voltage, the end time of the second time period is the same as the end time of the first time period; the control module pre-charges the second pixel unit according to the compensation signal, and when the first grayscale voltage is greater than the second grayscale voltage, the start time of the second time period is the same as the start time of the first time period.

[0008] Optionally, when the second grayscale voltage is greater than the first grayscale voltage, the grayscale voltage calculation formula of the compensation signal is:

[0009]

[0010] When the first grayscale voltage is greater than the second grayscale voltage, the grayscale voltage calculation formula of the compensation signal is:

[0011]

[0012] Wherein, V is the grayscale voltage of the compensation signal, t is the time of the second time period, T is the time of the first time period, V 2 is the second grayscale voltage, V 1 is the first gray scale voltage.

[0013] Optionally, the time period during which the control module charges the first pixel unit according to the data signal is a third time period, and the time period during which the control module charges the second pixel unit according to the data signal is a fourth time period, and the fourth time period is greater than the third time period.

[0014] In a second aspect, the present application further provides a method for driving a display panel, the method for driving a display panel comprising:

[0015] Get display signal;

[0016] Acquire a first grayscale voltage corresponding to the first pixel unit and a second grayscale voltage corresponding to the second pixel unit according to the display signal;

[0017] calculating an absolute value of a difference between the first grayscale voltage and the second grayscale voltage to obtain a grayscale characteristic value;

[0018] Determine the magnitude relationship between the grayscale characteristic value and a preset characteristic threshold;

[0019] When the grayscale characteristic value is greater than or equal to the preset characteristic threshold, a compensation signal is generated, and a corresponding pixel unit is pre-charged according to the compensation signal;

[0020] A data signal is generated according to the display signal, and the pixel unit is charged according to the data signal.

[0021] Optionally, the time period during which the data signal charges the pixel unit is a first time period, the time period during which the compensation signal pre-charges the pixel unit is a second time period, and the first time period is greater than the second time period; the step of generating the compensation signal and pre-charging the corresponding pixel unit according to the compensation signal specifically includes:

[0022] pre-charging the second pixel unit according to the compensation signal;

[0023] Determining a magnitude relationship between the first grayscale and the second grayscale;

[0024] When the second grayscale voltage is greater than the first grayscale voltage, controlling the start time of the second time period to be the same as the start time of the first time period;

[0025] pre-charging the first pixel unit according to the compensation signal;

[0026] Determining a magnitude relationship between the first grayscale and the second grayscale;

[0027] When the first gray-scale voltage is greater than the second gray-scale voltage, the end time of the second time period is controlled to be the same as the end time of the first time period.

[0028] Optionally, the time period during which the data signal charges the pixel unit is a first time period, the time period during which the compensation signal pre-charges the pixel unit is a second time period, and the first time period is greater than the second time period; the step of generating the compensation signal and pre-charging the corresponding pixel unit according to the compensation signal specifically includes:

[0029] pre-charging the first pixel unit according to the compensation signal;

[0030] Determining a magnitude relationship between the first grayscale and the second grayscale;

[0031] When the second grayscale voltage is greater than the first grayscale voltage, controlling the end time of the second time period to be the same as the end time of the first time period;

[0032] pre-charging the second pixel unit according to the compensation signal;

[0033] Determining a magnitude relationship between the first grayscale and the second grayscale;

[0034] When the first gray-scale voltage is greater than the second gray-scale voltage, the start time of the second time period is controlled to be the same as the start time of the first time period.

[0035] Optionally, the time period during which the data signal charges the first pixel unit is a third time period, and the time period during which the data signal charges the second pixel unit is a fourth time period; and the display panel driving method further includes:

[0036] The fourth time period is controlled to be greater than the third time period.

[0037] In a third aspect, the present application further provides an electronic device, comprising a housing and a display panel as described in the first aspect, wherein the housing carries the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the implementation modes will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0039] Figure 1 A schematic diagram of a display panel frame provided in one embodiment of the present application.

[0040] Figure 2 It is a schematic diagram of the display panel crosstalk test display effect in the related art.

[0041] Figure 3 The figure is a schematic diagram of a data signal waveform transmitted by a column of data signal lines in the related art.

[0042] Figure 4 A schematic diagram of a data signal waveform transmitted by a certain column of data signal lines provided in one embodiment of the present application.

[0043] Figure 5 A schematic diagram of a data signal waveform transmitted by a column of data signal lines provided in another embodiment of the present application.

[0044] Figure 6 A schematic diagram of a data signal waveform transmitted by a certain column of data signal lines provided in yet another embodiment of the present application.

[0045] Figure 7 A schematic diagram of a data signal waveform transmitted by a certain column of data signal lines provided in yet another embodiment of the present application.

[0046] Figure 8 A schematic flow chart of a method for driving a display panel provided in one embodiment of the present application.

[0047] Fig. 9 A schematic top view of an electronic device provided in one embodiment of the present application.

[0048] Explanation of the accompanying figure numbers: first direction -D1, second direction -D2, white grayscale image -1a, non-white grayscale image -1b, first time period -T, second time period -t1, third time period -t2, fourth time period -t3, display panel -1, control module -11, data signal line -12, pixel unit -13, first pixel unit -131, second pixel unit -132, scanning signal line -14, electronic device -2, shell -21. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] This application provides a display panel 1, please refer to Figure 1 , Figure 1The display panel frame schematic diagram provided in one embodiment of the present application. The display panel 1 includes a control module 11, a plurality of data signal lines 12 and a plurality of pixel units 13. The control module 11 is used to obtain a display signal and generate a data signal according to the display signal. The data signal charges the corresponding pixel unit 13 through the data signal line 12. Along the extension direction of the data signal line 12, the pixel unit 13 at least includes a first pixel unit 131 and a second pixel unit 132 that are adjacent and electrically connected to the same data signal line 12. The control module 11 obtains a first grayscale voltage corresponding to the first pixel unit 131 and a second grayscale voltage corresponding to the second pixel unit 132 according to the display signal, calculates the absolute value of the difference between the first grayscale voltage and the second grayscale voltage, so as to obtain a grayscale characteristic value. When the grayscale characteristic value is greater than or equal to a preset characteristic threshold, the control module 11 generates a compensation signal, and the compensation signal pre-charges at least one of the first pixel unit 131 and the second pixel unit 132 through the data signal line 12.

[0051] It should be noted that, see Figure 1 , the display panel 1 includes a display area and a non-display area, the non-display area is arranged around the display area; the control module is arranged in the non-display area; a plurality of pixel units 13 and a plurality of data signal lines 12 are arranged in the display area, and a plurality of scanning signal lines 14 are also arranged, and the scanning signal lines 14 are used to transmit scanning signals to the driving circuit (not shown in the figure) of the pixel unit 13, so as to turn on the driving circuit in the corresponding time period, so that the data signal charges the pixel unit 13 through the driving circuit, thereby realizing the display function of the display panel 1. In this embodiment, Figure 1 As shown, the data signal lines 12 extend along a first direction D1, the scanning signal lines 14 extend along a second direction D2, and the pixel units 13 are arranged in an array. The data signal lines 12 and the scanning signal lines 14 intersect to define a plurality of unit cells, each of which has a pixel unit 13.

[0052] For example, please also see Figure 2 , Figure 2 The figure is a schematic diagram of the display panel crosstalk test display effect in the related art. Taking the crosstalk test of the display panel 1 as an example for illustration, the so-called Crosstalk test means that the display panel 1 displays a white grayscale image 1a and a non-white grayscale image 1b respectively, and the white grayscale image 1a surrounds the non-white grayscale image 1b, so as to effectively test the display effect of the display panel 1. Figure 2As shown, along the first direction D1, at the first row of pixel units 13 and the last row of pixel units 13 of the non-white grayscale picture 1b, due to the sudden change of the grayscale voltage, the grayscale picture is brighter or darker, resulting in a poor display effect.

[0053] For details, please refer to Figure 3 , Figure 3 The following is a schematic diagram of a data signal waveform transmitted by a data signal line in a related art. It can be understood that the voltage value of the data signal has a corresponding mathematical relationship with the grayscale voltage, and the corresponding grayscale voltage can be calculated by the voltage value of the data signal. Specifically, Figure 3 The data signal shown is located at Figure 2 The pixel units 13 in a certain column of the white grayscale image 1a and the non-white grayscale image 1b are charged. Figure 3 As shown, the voltage of the data signal can be positive or negative, which depends on the specific circuit design of the pixel unit 13, and the present application does not limit this. The two adjacent dotted lines represent the time period when the scanning signal drives the drive circuit corresponding to a row to turn on, and the data signal charges the pixel unit 13 of the row through the drive circuit. When the voltage value of the data signal suddenly changes, that is, when the grayscale voltage suddenly changes, it can correspond to Figure 2 The first row of pixel units 13 and the last row of pixel units 13 of the non-pure grayscale picture. When the voltage value of the data signal rises from a lower value to a higher value, it is affected by the data signal of the corresponding time period of the previous row of pixel units 13, which easily causes the voltage value of the data signal charged to the first row of pixel units 13 of the non-white grayscale picture 1b to be lowered, resulting in a brighter displayed grayscale picture; when the voltage value of the data signal drops from a higher value to a lower value, it is affected by the data signal of the corresponding time period of the previous row of pixel units 13, which easily causes the voltage value of the data signal charged to the last row of pixel units 13 of the non-white grayscale picture 1b to be higher, resulting in a darker displayed grayscale picture. It should be noted that in this application, the symbol does not affect the size of the numerical value, that is, the numerical values ​​in this application are all absolute values.

[0054] In this embodiment, every two adjacent pixel units 13 are marked as the first pixel unit 131 and the second pixel unit 132 in the extending direction of the data signal line 12, and the control module 11 can preferentially obtain the grayscale voltage of the grayscale image displayed by the first pixel unit 131 and the second pixel unit 132 according to the display signal, that is, the first grayscale voltage and the second grayscale voltage, and calculate the absolute value of the difference between the first grayscale voltage and the second grayscale voltage to obtain the grayscale characteristic value. By comparing the grayscale characteristic value and the preset characteristic threshold value, when the grayscale characteristic value is greater than or equal to the preset characteristic threshold value, it means that the grayscale images displayed by the two adjacent pixel units 13 are greatly different, which is easy to cause poor display effect, and the first pixel unit 131 is before the grayscale voltage changes, and the second pixel unit 132 is after the grayscale voltage changes, which may be that the grayscale image displayed by the first pixel unit 131 is poor, or the grayscale image displayed by the second pixel unit 132 is poor.

[0055] Specifically, the control module 11 generates the compensation signal to pre-charge the corresponding pixel unit 13, thereby compensating for the influence of the data signal charging the previous pixel unit 13 when the data signal charges the pixel unit 13; conversely, when the grayscale characteristic value is less than the preset characteristic threshold, it is not necessary to generate the compensation signal. It can be understood that the control module 11 traverses all the first pixel units 131 and the second pixel units 132 to achieve compensation adjustment of the display screen of the entire display panel 1.

[0056] It can be understood that in this embodiment, the grayscale voltages of the adjacent pixel units 13 are calculated, the pixel units 13 with a larger grayscale voltage difference are pre-charged according to the compensation signal, and then the pixel units 13 are charged according to the data signal, thereby improving the adverse display effect caused by the sudden change of the grayscale picture.

[0057] It should be noted that the preset characteristic threshold can be set according to the actual display panel 1, and the present application does not limit the specific value of the preset characteristic threshold.

[0058] In a possible implementation, please refer to Figure 4 , Figure 4A schematic diagram of a data signal waveform transmitted by a certain column of data signal lines provided in one embodiment of the present application. The time period during which the control module 11 charges the pixel unit 13 according to the data signal is a first time period T, and the time period during which the control module 11 pre-charges the pixel unit 13 according to the compensation signal is a second time period t1, the first time period T is greater than the second time period t1, the control module 11 pre-charges the second pixel unit 132 according to the compensation signal, and when the second grayscale voltage is greater than the first grayscale voltage, the start time of the second time period t1 is the same as the start time of the first time period T; the control module 11 pre-charges the first pixel unit 131 according to the compensation signal, and when the first grayscale voltage is greater than the second grayscale voltage, the end time of the second time period t1 is the same as the end time of the first time period T.

[0059] It can be understood that since the time for the data signal to charge the pixel unit 13 is the first time period T, the time for the compensation signal to pre-charge the pixel unit 13 should not exceed the first time period T, so as to avoid the compensation signal charging the previous pixel unit 13 or the next pixel unit 13 of the pixel unit 13, which may cause display errors. Therefore, the second time period t1 should be less than the first time period T.

[0060] In this embodiment, if Figure 4 As shown, the control module 11 pre-charges the second pixel unit 132 according to the compensation signal, and when the second grayscale voltage is greater than the first grayscale voltage, the starting time of the second time period t1 is the same as the starting time of the first time period T, and when the voltage value of the data signal increases from a lower value to a higher value, the second pixel unit 132 is pre-charged, thereby increasing the grayscale voltage received by the second pixel unit 132 and improving the grayscale picture displayed by the second pixel unit 132; similarly, the control module 11 pre-charges the first pixel unit 131 according to the compensation signal, and when the first grayscale voltage is greater than the second grayscale voltage, the ending time of the second time period t1 is the same as the ending time of the first time period T, and when the voltage value of the data signal decreases from a higher value to a lower value, the first pixel unit 131 is pre-charged, thereby reducing the grayscale voltage received by the first pixel unit 131 and improving the grayscale picture displayed by the first pixel unit 131.

[0061] In a possible implementation, please refer to Figure 5 , Figure 5A schematic diagram of a data signal waveform transmitted by a certain column of data signal lines provided in another embodiment of the present application. The time period during which the control module 11 charges the pixel unit 13 according to the data signal is a first time period T, and the time period during which the control module 11 pre-charges the pixel unit 13 according to the compensation signal is a second time period t1, the first time period T is greater than the second time period t1, the control module 11 pre-charges the first pixel unit 131 according to the compensation signal, and when the second grayscale voltage is greater than the first grayscale voltage, the end time of the second time period t1 is the same as the end time of the first time period T; the control module 11 pre-charges the second pixel unit 132 according to the compensation signal, and when the first grayscale voltage is greater than the second grayscale voltage, the start time of the second time period t1 is the same as the start time of the first time period T.

[0062] It can be understood that the difference between this embodiment and the previous embodiment is that Figure 5 As shown, the control module 11 precharges the first pixel unit 131 according to the compensation signal, and when the second grayscale voltage is greater than the first grayscale voltage, the end time of the second time period t1 is the same as the end time of the first time period T, and when the voltage value of the data signal increases from a lower value to a higher value, the first pixel unit 131 is precharged, thereby increasing the grayscale voltage received by the second pixel unit 132 and improving the grayscale image displayed by the second pixel unit 132; similarly, the control module 11 precharges the second pixel unit 132 according to the compensation signal, and when the first grayscale voltage is greater than the second grayscale voltage, the start time of the second time period t1 is the same as the start time of the first time period T, and when the voltage value of the data signal decreases from a higher value to a lower value, the second pixel unit 132 is precharged, thereby reducing the grayscale voltage received by the first pixel unit 131 and improving the grayscale image displayed by the first pixel unit 131. That is, in this embodiment, at the same time, the control module 11 precharges different objects for the first pixel unit 131 or the second pixel unit 132 according to the compensation signal.

[0063] It can be understood that in other possible implementations, the control module 11 can also pre-charge the first pixel unit 131 according to the compensation signal, and when the second grayscale voltage is greater than the first grayscale voltage, the end time of the second time period t1 is the same as the end time of the first time period T, and when the voltage value of the data signal increases from a lower value to a higher value, the first pixel unit 131 is pre-charged, thereby increasing the grayscale voltage received by the second pixel unit 132 and improving the grayscale picture displayed by the second pixel unit 132; similarly, the control module 11 can pre-charge the first pixel unit 131 according to the compensation signal. The first pixel unit 131 is pre-charged, and when the first grayscale voltage is greater than the second grayscale voltage, the end time of the second time period t1 is the same as the end time of the first time period T, and when the voltage value of the data signal drops from a higher value to a lower value, the first pixel unit 131 is pre-charged, thereby reducing the grayscale voltage received by the first pixel unit 131 and improving the grayscale picture displayed by the first pixel unit 131. As long as it does not affect the control module 11 pre-charging the first pixel unit 131 or the second pixel unit 132 according to the compensation signal, the present application does not impose any restrictions on this.

[0064] In a possible implementation manner, when the second grayscale voltage is greater than the first grayscale voltage, the grayscale voltage calculation formula of the compensation signal is:

[0065]

[0066] When the first grayscale voltage is greater than the second grayscale voltage, the grayscale voltage calculation formula of the compensation signal is:

[0067]

[0068] Wherein, V is the grayscale voltage of the compensation signal, t is the time of the second time period t1, T is the time of the first time period T, V 2 is the second grayscale voltage, V 1 is the first gray scale voltage.

[0069] Specifically, when the second grayscale voltage is greater than the first grayscale voltage, that is, when the voltage value of the data signal increases from a lower value to a higher value, in order to improve the grayscale image displayed by the second pixel unit 132, it is necessary to increase the voltage received by the second pixel unit 132; when the first grayscale voltage is greater than the second grayscale voltage, that is, when the voltage value of the data signal decreases from a higher value to a lower value, in order to improve the grayscale image displayed by the first pixel unit 131, it is necessary to reduce the voltage received by the first pixel unit 131.

[0070] It should be noted that, usually, the grayscale image ranges from grayscale 0 to grayscale 255. In this embodiment, the first grayscale voltage is greater than or equal to the grayscale voltage corresponding to grayscale 0, and the second grayscale voltage is less than or equal to the grayscale voltage corresponding to grayscale 255.

[0071] It can be understood that this embodiment provides a specific method for calculating the grayscale voltage of the compensation signal. In other possible embodiments, the grayscale voltage of the compensation signal can also be calculated by other calculation methods, and this application is not limited to this.

[0072] In a possible implementation, please refer to Figure 6 , Figure 6 A schematic diagram of a data signal waveform transmitted by a certain column of data signal lines provided in another embodiment of the present application. The time period during which the control module 11 charges the first pixel unit 131 according to the data signal is the third time period t2, and the time period during which the control module 11 charges the second pixel unit 132 according to the data signal is the fourth time period t3, and the fourth time period t3 is greater than the third time period t2.

[0073] In this embodiment, when the second grayscale voltage is greater than the first grayscale voltage, that is, when the voltage value of the data signal increases from a lower value to a higher value, the charging time of the second pixel unit 132 is increased by controlling the fourth time period t3 to be greater than the third time period t2, thereby increasing the grayscale voltage of the second pixel unit 132 and improving the grayscale image displayed by the second pixel unit 132; similarly, when the first grayscale voltage is greater than the second grayscale voltage, that is, when the voltage value of the data signal decreases from a higher value to a lower value, the charging time of the first pixel unit 131 is reduced by controlling the fourth time period t3 to be greater than the third time period t2, thereby reducing the grayscale voltage of the first pixel unit 131 and improving the grayscale image displayed by the first pixel unit 131.

[0074] It should be noted that in order to avoid changing the size of the third time period t2 and the fourth time period t3, which would cause a disorder in the timing of charging the different pixel units 13, in this embodiment, the sum of the charging time of the first pixel unit 131 and the second pixel unit 132 remains unchanged, and the sum of the time of the third time period t2 and the fourth time period t3 is twice the first time period T, that is, t2+t3=2T, so that the timing of charging the remaining different pixel units 13 will not be changed.

[0075] It is understandable that the lengths of the third time period t2 and the fourth time period t3 can be determined according to the first grayscale voltage V 1 and the second grayscale voltage V2 It can be understood that when the first grayscale voltage V 1 and the second grayscale voltage V 2 The greater the absolute value of the difference between the third time period t2 and the fourth time period t3, the greater the absolute value of the difference between the third time period t2 and the fourth time period t3, thereby effectively increasing the charging time of the first pixel unit 131 or the second pixel unit 132. For example, the first grayscale voltage V 1 and the second grayscale voltage V 2 The greater the absolute value of the difference between the third time period t2 and the fourth time period t3, the linear relationship exists between the difference between the third time period t2 and the fourth time period t3, that is, |t3-t2|=k|V 2 -V 1 |, where k is a linear factor, and the specific value of k can be changed according to actual conditions. Combined with the relationship t2+t3=2T, the specific values ​​of the third time period t2 and the fourth time period t3 can be calculated respectively.

[0076] In a possible implementation, please refer to Figure 7 , Figure 7 A schematic diagram of a data signal waveform transmitted by a certain column of data signal lines is provided for another embodiment of the present application. In this embodiment, Figure 7 As shown, while controlling the fourth time period t3 to be greater than the third time period t2, the first pixel unit 131 or the second pixel unit 132 can be pre-charged according to the compensation signal, thereby further improving the grayscale image displayed by the first pixel unit 131 or the second pixel unit 132.

[0077] It can be understood that in other possible implementations, the implementations described above can also form other new combination implementations, which are not listed one by one in this application.

[0078] This application also provides a display panel driving method, please refer to Figure 8 , Figure 8 The driving method of the display panel provided in one embodiment of the present application is a flow chart of the driving method of the display panel, which comprises steps S801, S802, S803, S804, S805 and S806, wherein the steps S801, S802, S803, S804, S805 and S806 are described in detail as follows.

[0079] S801, obtaining a display signal;

[0080] S802, acquiring a first grayscale voltage corresponding to the first pixel unit 131 and a second grayscale voltage corresponding to the second pixel unit 132 according to the display signal;

[0081] S803, calculating an absolute value of a difference between the first grayscale voltage and the second grayscale voltage to obtain a grayscale characteristic value;

[0082] S804, determining the magnitude relationship between the grayscale characteristic value and a preset characteristic threshold;

[0083] When the grayscale characteristic value is greater than or equal to the preset characteristic threshold, S805, generating a compensation signal, and pre-charging the corresponding pixel unit 13 according to the compensation signal;

[0084] S806, generating a data signal according to the display signal, and charging the pixel unit 13 according to the data signal.

[0085] Specifically, the display signal, the data signal, the pixel unit 13, the first pixel unit 131, the first grayscale voltage, the second pixel unit 132, the second grayscale voltage, the grayscale characteristic value, the preset characteristic threshold, and the compensation signal are described above and will not be described again. It can be understood that when the grayscale characteristic value is less than the preset characteristic threshold, it indicates that the pixel unit 13 does not need compensation, and step S806 can be directly executed.

[0086] It can be understood that in this embodiment, the grayscale voltages of the adjacent pixel units 13 are calculated, the pixel units 13 with a larger grayscale voltage difference are pre-charged according to the compensation signal, and then the pixel units 13 are charged according to the data signal, thereby improving the adverse display effect caused by the sudden change of the grayscale picture.

[0087] In a possible implementation, the time period during which the data signal charges the pixel unit 13 is a first time period T, the time period during which the compensation signal pre-charges the pixel unit 13 is a second time period t1, and the first time period T is greater than the second time period t1; the step of generating a compensation signal and pre-charging the corresponding pixel unit 13 according to the compensation signal specifically includes:

[0088] pre-charging the second pixel unit 132 according to the compensation signal;

[0089] Determining a magnitude relationship between the first grayscale and the second grayscale;

[0090] When the second gray-scale voltage is greater than the first gray-scale voltage, controlling the start time of the second time period t1 to be the same as the start time of the first time period T;

[0091] pre-charging the first pixel unit 131 according to the compensation signal;

[0092] Determining a magnitude relationship between the first grayscale and the second grayscale;

[0093] When the first gray-scale voltage is greater than the second gray-scale voltage, the end time of the second time period t1 is controlled to be the same as the end time of the first time period T.

[0094] Specifically, the first time period T and the second time period t1 are described above and will not be described again. It can be understood that in this embodiment, the first pixel unit 131 and the second pixel unit 132 are pre-charged according to the compensation signal, thereby improving the grayscale images displayed by the first pixel unit 131 and the second pixel unit 132.

[0095] In a possible implementation, the time period during which the data signal charges the pixel unit 13 is a first time period T, the time period during which the compensation signal pre-charges the pixel unit 13 is a second time period t1, and the first time period T is greater than the second time period t1; the step of generating a compensation signal and pre-charging the corresponding pixel unit 13 according to the compensation signal specifically includes:

[0096] pre-charging the first pixel unit 131 according to the compensation signal;

[0097] Determining a magnitude relationship between the first grayscale and the second grayscale;

[0098] When the second grayscale voltage is greater than the first grayscale voltage, controlling the end time of the second time period t1 to be the same as the end time of the first time period T;

[0099] pre-charging the second pixel unit 132 according to the compensation signal;

[0100] Determining a magnitude relationship between the first grayscale and the second grayscale;

[0101] When the first gray-scale voltage is greater than the second gray-scale voltage, the start time of the second time period t1 is controlled to be the same as the start time of the first time period T.

[0102] Specifically, the first time period T and the second time period t1 are described above and will not be described again. It can be understood that in this embodiment, the first pixel unit 131 and the second pixel unit 132 are pre-charged according to the compensation signal, thereby improving the grayscale images displayed by the first pixel unit 131 and the second pixel unit 132.

[0103] In a possible implementation, the time period during which the data signal charges the first pixel unit 131 is a third time period t2, and the time period during which the data signal charges the second pixel unit 132 is a fourth time period t3; the display panel driving method further includes:

[0104] The fourth time period t3 is controlled to be greater than the third time period t2.

[0105] Specifically, the third time period t2 and the fourth time period t3 are described above and will not be described again. It can be understood that in this embodiment, by controlling the size relationship between the third time period t2 and the fourth time period t3, the grayscale images displayed by the first pixel unit 131 and the second pixel unit 132 are improved.

[0106] This application also provides an electronic device 2, please refer to Fig. 9 , Fig. 9 The electronic device 2 includes a housing 21 and a display panel 1 as described above, and the housing 21 carries the display panel 1. Specifically, the display panel 1 is described above and will not be described here.

[0107] It should be noted that the electronic device 2 in the implementation manner of the present application can be an electronic device 2 in a mobile phone, a smart phone, a tablet computer, an e-reader, a wearable portable device, a laptop computer, etc., which can communicate with a data transfer server through the Internet. The data transfer server can be an instant messaging server, an SNS (Social Networking Services) server, etc., and the implementation manner of the present application does not limit this.

[0108] This article uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above implementation methods is only used to help understand the core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display panel, comprising a control module, a plurality of data signal lines and a plurality of pixel units, wherein the control module is used to obtain a display signal and generate a data signal according to the display signal, wherein the data signal charges the corresponding pixel unit through the data signal line, and along the extending direction of the data signal line, the pixel unit at least comprises a first pixel unit and a second pixel unit adjacent to and electrically connected to the same data signal line, wherein: The control module acquires a first grayscale voltage corresponding to the first pixel unit and a second grayscale voltage corresponding to the second pixel unit according to the display signal, calculates an absolute value of a difference between the first grayscale voltage and the second grayscale voltage to obtain a grayscale characteristic value, and when the grayscale characteristic value is greater than or equal to a preset characteristic threshold, the control module generates a compensation signal, and the compensation signal pre-charges at least one of the first pixel unit and the second pixel unit through the data signal line; The time period during which the control module charges the pixel unit according to the data signal is a first time period, and the time period during which the control module pre-charges the pixel unit according to the compensation signal is a second time period, the first time period is greater than the second time period, the control module pre-charges the second pixel unit according to the compensation signal, and when the second grayscale voltage is greater than the first grayscale voltage, the start time of the second time period is the same as the start time of the first time period; The control module precharges the first pixel unit according to the compensation signal, and when the first grayscale voltage is greater than the second grayscale voltage, the end time of the second time period is the same as the end time of the first time period.

2. The display panel according to claim 1, wherein: The time period during which the control module charges the pixel unit according to the data signal is a first time period, and the time period during which the control module pre-charges the pixel unit according to the compensation signal is a second time period, the first time period is greater than the second time period, the control module pre-charges the first pixel unit according to the compensation signal, and when the second grayscale voltage is greater than the first grayscale voltage, the end time of the second time period is the same as the end time of the first time period; The control module precharges the second pixel unit according to the compensation signal, and when the first grayscale voltage is greater than the second grayscale voltage, the start time of the second time period is the same as the start time of the first time period.

3. The display panel according to claim 1 or 2, characterized in that: When the second grayscale voltage is greater than the first grayscale voltage, the grayscale voltage calculation formula of the compensation signal is: When the first grayscale voltage is greater than the second grayscale voltage, the grayscale voltage calculation formula of the compensation signal is: Wherein, V is the grayscale voltage of the compensation signal, t is the time of the second time period, T is the time of the first time period, V2 is the second grayscale voltage, and V1 is the first grayscale voltage.

4. The display panel according to claim 1 or 2, characterized in that: The time period during which the control module charges the first pixel unit according to the data signal is a third time period, and the time period during which the control module charges the second pixel unit according to the data signal is a fourth time period, and the fourth time period is greater than the third time period.

5. A method for driving a display panel, characterized in that: The driving method of the display panel includes: Get display signal; Acquire a first grayscale voltage corresponding to the first pixel unit and a second grayscale voltage corresponding to the second pixel unit according to the display signal; calculating an absolute value of a difference between the first grayscale voltage and the second grayscale voltage to obtain a grayscale characteristic value; Determine the magnitude relationship between the grayscale characteristic value and a preset characteristic threshold; When the grayscale characteristic value is greater than or equal to the preset characteristic threshold, a compensation signal is generated, and a corresponding pixel unit is pre-charged according to the compensation signal; Generate a data signal according to the display signal, and charge the pixel unit according to the data signal, wherein the time period during which the data signal charges the pixel unit is a first time period, and the time period during which the compensation signal pre-charges the pixel unit is a second time period, and the first time period is greater than the second time period; The step of generating a compensation signal and precharging the corresponding pixel unit according to the compensation signal comprises: pre-charging the second pixel unit according to the compensation signal; Determining a magnitude relationship between the first grayscale and the second grayscale; When the second grayscale voltage is greater than the first grayscale voltage, controlling the start time of the second time period to be the same as the start time of the first time period; pre-charging the first pixel unit according to the compensation signal; Determining a magnitude relationship between the first grayscale and the second grayscale; When the first gray-scale voltage is greater than the second gray-scale voltage, the end time of the second time period is controlled to be the same as the end time of the first time period.

6. The method for driving a display panel according to claim 5, wherein: The time period during which the data signal charges the pixel unit is a first time period, the time period during which the compensation signal pre-charges the pixel unit is a second time period, and the first time period is greater than the second time period; the step of generating a compensation signal and pre-charging the corresponding pixel unit according to the compensation signal specifically includes: pre-charging the first pixel unit according to the compensation signal; Determining a magnitude relationship between the first grayscale and the second grayscale; When the second grayscale voltage is greater than the first grayscale voltage, controlling the end time of the second time period to be the same as the end time of the first time period; pre-charging the second pixel unit according to the compensation signal; Determining a magnitude relationship between the first grayscale and the second grayscale; When the first gray-scale voltage is greater than the second gray-scale voltage, the start time of the second time period is controlled to be the same as the start time of the first time period.

7. The method for driving a display panel according to claim 5 or 6, wherein: The time period during which the data signal charges the first pixel unit is a third time period, and the time period during which the data signal charges the second pixel unit is a fourth time period; the display panel driving method further includes: The fourth time period is controlled to be greater than the third time period.

8. An electronic device, characterized in that: The electronic device comprises a housing and a display panel as claimed in any one of claims 1 to 4, wherein the housing carries the display panel.

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