CN113219742A

CN113219742A - Display panel, display device, and driving method of display panel

Info

Publication number: CN113219742A
Application number: CN202110427134.1A
Authority: CN
Inventors: 康志聪; 袁海江
Original assignee: HKC Co Ltd; Beihai HKC Optoelectronics Technology Co Ltd
Current assignee: HKC Co Ltd; Beihai HKC Optoelectronics Technology Co Ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-08-06

Abstract

The application discloses a display panel, display equipment and a driving method of the display panel, wherein two ends of a first sub-pixel in the display panel are respectively connected with a first active switch and a second active switch, and the second sub-pixel is connected with the first active switch; the first active switches are distributed in the first sub-pixels and the second sub-pixels in a one-to-one correspondence mode, and the second active switches are distributed in the second sub-pixels in a corresponding mode; the first active switch is respectively connected with the scanning line and the data line; the second active switch is respectively connected with the scanning line and the common electrode signal line, and the adjacent sub-pixels realize high-low voltage alternation due to the difference of the charging capacities of the first active switch and the second active switch connected with the adjacent sub-pixels, thereby achieving the purpose of reducing color cast.

Description

Display panel, display device, and driving method of display panel

Technical Field

The present application relates to the field of liquid crystal display technologies, and in particular, to a display panel, a display device, and a driving method of the display panel.

Background

The statements herein merely provide background information related to the present application and may not necessarily constitute prior art.

Most of the existing large-sized liquid crystal display panels are negative-type Vertical Alignment (VA) liquid crystals or In-Plane Switching (IPS) liquid crystals, and comparing the VA liquid crystal technology with the IPS liquid crystal technology, it can be found that the VA liquid crystal technology has higher production efficiency and lower manufacturing cost, but the VA liquid crystal technology is inferior to the IPS liquid crystal technology In terms of the optical property, and has a more obvious optical property defect.

Therefore, the existing color shift solution will affect the panel transmittance, and the color shift phenomenon cannot be improved well.

Disclosure of Invention

The present application is directed to a display panel, a display device and a driving method of the display panel, and aims to effectively improve color shift without affecting panel transmittance.

To achieve the above object, the present application provides a display panel including: the display device comprises a first substrate, a second substrate and a display medium, wherein the first substrate and the second substrate are oppositely arranged, and the display medium is arranged between the first substrate and the second substrate; the first substrate includes:

the liquid crystal display panel comprises a plurality of data lines, a plurality of scanning lines and a plurality of common electrode signal lines, wherein the data lines and the scanning lines are arranged in a crossed manner;

the pixel units are arranged in an array, the data lines, the scanning lines and the common electrode signal lines are correspondingly arranged in each row of the pixel units, and each pixel unit comprises at least one first sub-pixel and at least one second sub-pixel which are adjacent;

the first sub-pixels and the second sub-pixels are respectively connected with the corresponding first active switches, the control ends of the first active switches are connected with the scanning lines corresponding to the first sub-pixels, and the data signal writing ends of the first active switches are respectively connected with the data lines corresponding to the first sub-pixels and the adjacent data lines in the next row; and

the second sub-pixels are connected with the corresponding second active switches, the control ends of the second active switches are connected with the next row of scanning lines adjacent to the first sub-pixels, the data signal writing ends of the second active switches are connected with the common electrode signal lines corresponding to the second sub-pixels, and the charging capacity of the first active switches is larger than that of the second active switches.

Optionally, the at least one first sub-pixel and the at least one second sub-pixel are arranged in a cross.

Optionally, when the data signal of the data line is positive, the driving voltage of the data line is greater than a reference voltage, and when the data signal of the data line is negative, the driving voltage of the data line is less than the reference voltage, where the reference voltage is a common electrode reference voltage of the first active switch and the second active switch.

Optionally, adjacent data lines use drive signals of opposite polarity.

Optionally, when the first sub-pixel is driven with positive polarity, the second sub-pixel is driven with negative polarity; and

when the first sub-pixel is driven with negative polarity, the second sub-pixel is driven with negative polarity.

Optionally, the driving voltage applied to the common electrode signal line is less than the driving voltage for positive polarity driving of the data line and greater than the driving voltage for negative polarity driving of the data line.

Optionally, the first and second sub-pixels are arranged with opposite polarities.

Optionally, the first sub-pixel and the second sub-pixel are driven alternately by positive polarity driving and negative polarity driving, respectively.

Further, to achieve the above object, the present application also proposes a display device including the display panel as described above.

Further, to achieve the above object, the present application also proposes a driving method of a display panel applied to a display device as described above, the display device including a first sub-pixel, a second sub-pixel, a data line, a common electrode signal line, and a scan line scanned line by line, the driving method of the display panel including:

when the first sub-pixel and the second sub-pixel receive the driving signal of the scanning line, the first sub-pixel and the second sub-pixel are charged through the data line; and

when the second sub-pixel receives the driving signal of the common electrode signal line, the voltage charged by the second sub-pixel is reduced.

The display panel in this application includes: the display device comprises a first substrate, a second substrate and a display medium, wherein the first substrate and the second substrate are oppositely arranged, and the display medium is arranged between the first substrate and the second substrate; the first substrate includes: the liquid crystal display panel comprises a plurality of data lines, a plurality of scanning lines and a plurality of common electrode signal lines, wherein the data lines and the scanning lines are arranged in a crossed manner; the pixel units are arranged in an array, the data lines, the scanning lines and the common electrode signal lines are correspondingly arranged in each row of the pixel units, and each pixel unit comprises at least one first sub-pixel and at least one second sub-pixel which are adjacent; the first sub-pixels and the second sub-pixels are respectively connected with the corresponding first active switches, the control ends of the first active switches are connected with the scanning lines corresponding to the first sub-pixels, and the data signal writing ends of the first active switches are respectively connected with the data lines corresponding to the first sub-pixels and the adjacent data lines in the next row; and a plurality of second active switches, wherein the second sub-pixels are connected with the corresponding second active switches, the control terminals of the second active switches are connected with the next row of scanning lines adjacent to the first sub-pixels, and the data signal write terminals of the second active switches are connected with the common electrode signal lines corresponding to the second sub-pixels, wherein the charging capacity of the first active switch is greater than that of the second active switch, and the driving voltages of the adjacent sub-pixels are different, so that the charging capacities of the first active switch and the second active switch connected to the adjacent sub-pixels are different, and the adjacent sub-pixels realize high-low voltage alternation, thereby achieving the purpose of reducing color cast.

Drawings

FIG. 1 is a schematic circuit diagram of a pixel structure in an embodiment of a display panel according to the present application;

FIG. 2 is a schematic diagram of liquid crystal deflection of high electron pixels and low voltage sub-pixels of adjacent sub-pixels of an exemplary display panel of the present application;

FIG. 3 is a schematic diagram of a partial circuit structure of a pixel structure in another embodiment of a display panel according to the present application;

FIG. 4 is a schematic signal timing diagram of a display panel according to another embodiment of the present application;

FIG. 5 is a schematic circuit diagram of another embodiment of a display panel according to the present application;

FIG. 6 is a schematic structural diagram of an embodiment of a display device according to the present application;

fig. 7 is a flowchart illustrating a driving method of a display panel according to an embodiment of the present disclosure.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Data line	70	First active switch
20	Scanning line	80	Second active switch
				30	Common electrode signal line	100	Display panel
40	Pixel unit	200	Drive module
				50	First sub-pixel	210	Scanning circuit
60	Second sub-pixel	220	Driving circuit

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a display panel.

Referring to fig. 1, fig. 1 is a schematic circuit diagram of a pixel structure in an embodiment of a display panel, in the embodiment of the present invention, the display panel includes a plurality of data lines 10 and a plurality of scan lines 20, the data lines and the scan lines are arranged in an intersecting manner, and a plurality of common electrode signal lines 30; a plurality of pixel units 40 arranged in an array, wherein each row of the pixel units 40 is provided with the data line 10, the scanning line 20 and the common electrode signal line 30, and each pixel unit 40 comprises at least one first sub-pixel 50 and at least one second sub-pixel 60 which are adjacent;

a plurality of first active switches 70, wherein the first sub-pixels 50 and the second sub-pixels 60 are respectively connected to the corresponding first active switches 70, a control end of the first active switch 70 is connected to a scan line corresponding to the first sub-pixel 50, and a data signal writing end of the first active switch 70 is respectively connected to a data line corresponding to the first sub-pixel 50 and an adjacent data line in the next column; and

a plurality of second active switches 80, the second sub-pixels 60 are connected to the corresponding second active switches 80, the control terminals of the second active switches 80 are connected to the next row of scan lines adjacent to the first sub-pixels 50, the data signal write terminals of the second active switches 80 are connected to the common electrode signal lines corresponding to the second sub-pixels 60, wherein the charging capability of the first active switch 70 is greater than that of the second active switch 80, and the at least one first sub-pixel 50 and the at least one second sub-pixel 60 are arranged in an intersecting manner.

In this embodiment, the first substrate may be an array substrate, the second substrate may be a color film substrate, the display medium may be a liquid crystal, and the first sub-pixels 50 and the second sub-pixels 60 are alternately arranged in the same row of pixel units 40; in the same column of pixel units 40, the first sub-pixels 50 and the second sub-pixels 60 are alternately arranged; the two ends of the first sub-pixel 50 are respectively connected with the first active switch 70 and the second active switch 80, and the second sub-pixel 60 is connected with the first active switch 70; the first active switches 70 are correspondingly distributed in the first sub-pixel 50 and the second sub-pixel 60, and the second active switches 80 are correspondingly distributed in the second sub-pixel 60.

It should be noted that the pixel unit 40 includes a first sub-pixel 50 and a second sub-pixel 60, and the present embodiment drives the adjacent sub-pixels with bright and dark voltages, and the first sub-pixel and the second sub-pixel in the adjacent sub-pixel unit are alternately disposed, so as to achieve the purpose of improving the color shift defect of the liquid crystal display, wherein the first sub-pixel represents a high-voltage sub-pixel, the second sub-pixel represents a low-voltage sub-pixel, and the first sub-pixel also represents a low-voltage sub-pixel, and the second sub-pixel represents a high-voltage sub-pixel, which is not limited in this embodiment, in the present embodiment, the first sub-pixel represents a high-voltage sub-pixel, and the second sub-pixel represents a low-voltage sub-pixel, and in this embodiment, the first sub-pixel 50 and the second sub-pixel 60 are arranged with opposite polarities, and the first sub-pixel 50 and the second sub-pixel 60 are respectively driven with positive polarity and negative polarity alternately, the charging capability of the first active switch 70 is greater than that of the second active switch 80, and the first active switch 70 and the second active switch 80 may be thin film transistors, or may be other circuits capable of realizing the same or similar functions.

The liquid crystal display device includes a data line 10, a common electrode signal line 30, and scan lines 20 scanned line by line, wherein the scan lines 20 include a first scan line and a second scan line, and a driving time of the first scan line is earlier than a driving time of the second scan line.

In this embodiment, the first scan line is VG_nThe second scan line is VG_n+1. That is, the sequential scan driving signals are VGn, VGn +1 and VGn +2 … from top to bottom.

The data line 10 includes a first data line and a second data line adjacent to each other, wherein the first data line and the second data line use driving signals of opposite polarities.

It is understood that the first data line is Vd_n-m+1The second data line is Vd_n-m+2I.e. Vd is turned on in sequence_n-m、Vd_n-m+1And Vd_n-m+2… the sub-pixels are data written and the first and second sub-pixels are arranged with opposite polarities.

The driving voltage applied to the common electrode signal line 30 is less than the driving voltage applied to the data line 10 for positive polarity driving and greater than the driving voltage applied to the data line 10 for negative polarity driving, so that a voltage difference occurs between the first sub-pixel and the second sub-pixel, and the effect of alternating between bright and dark is achieved.

The first active switch 70 is respectively connected to the scan line 20 and the data line 10; the second active switch 80 is respectively connected to the scan line 20 and the common electrode signal line 30, wherein the driving voltage of the common electrode signal line 30 is less than the driving voltage of the data line 10 when the data line is driven with positive polarity.

As shown in fig. 2, of the display panel 100The liquid crystal deflection schematic diagram of the high electronic pixel and the low voltage sub-pixel of the adjacent sub-pixels divides each sub-pixel of the red, green and blue RGB into a main sub-pixel and a sub-pixel, so that the whole large visual angle brightness is closer to the front view along with the voltage change, wherein theta_AIndicating the liquid crystal deflection angle, theta, in the high electric region_BThe liquid crystal deflection angle in the high electric region is expressed, so that the change relation of the visual angle brightness along with the signal is close to the change of the front-view original signal brightness along with the signal under the condition of not sacrificing the transmittance, and the visual angle is improved.

However, in this embodiment, when the data signal of the data line 10 is positive polarity, the driving voltage of the data line 10 is greater than the reference voltage, and when the data signal of the data line 10 is negative polarity, the driving voltage of the data line 10 is less than the reference voltage, where the reference voltage is the reference voltage of the first active switch 70 and the second active switch 80, and the first active switch 70 is represented by T1 and the second active switch 80 is represented by T2 for the TFT element, the common electrode signal line 30 is charged to T2, the common electrode signal line is represented by Vst, the common electrode voltage is lower than the positive polarity driving signal and is higher than the negative polarity driving signal, the adjacent data driving lines use driving signals with different polarities, and through the TFT element T2, the sub-pixel voltage to be displayed with dark brightness can be discharged, so that the sub-pixel voltage with dark brightness is close to the common electrode signal line Vst voltage, the adjacent sub-pixel units realize high-low voltage alternation, thereby achieving the purpose of reducing color cast.

As shown in fig. 3, a schematic diagram of a partial circuit structure of a pixel structure in another embodiment of a display panel specifically includes: the control terminal of the first active switch 70 is connected to the scan line 20, and the data signal write terminal of the first active switch 70 is connected to the data line 10;

the control terminal of the second active switch 80 is connected to the scan line 20, and the data signal write terminal of the second active switch 80 is connected to the common electrode signal line 30.

In the present embodiment, only one TFT element T1 on the higher voltage bright sub-pixel design charges the sub-pixel, one TFT element T1 on the darker voltage dark sub-pixel design charges the sub-pixel, and another TFT element T2 is driven by the next-stage scan driving line, the TFT element T2 has smaller charging capability than T1, the TFT element T2 is charged by the common electrode signal line Vst, the common electrode voltage is higher than the positive polarity driving signal and higher than the negative polarity driving signal, and the adjacent data driving lines drive driving signals of different polarities. The TFT element T2 discharges the sub-pixel voltage to be displayed with dark luminance, so that the sub-pixel voltage with dark luminance is close to the common electrode signal line Vst voltage, thereby achieving the effect of alternating dark and light for the adjacent sub-pixels.

In the technical solution provided in this embodiment, the display panel includes: the display device comprises a first substrate, a second substrate and a display medium, wherein the first substrate and the second substrate are oppositely arranged, and the display medium is arranged between the first substrate and the second substrate; the first substrate includes: a plurality of data lines 10 and a plurality of scan lines 20 arranged to intersect with each other, and a plurality of common electrode signal lines 30; a plurality of pixel units 40 arranged in an array, wherein each row of the pixel units 40 is provided with the data line 10, the scanning line 20 and the common electrode signal line 30, and each pixel unit 40 comprises at least one first sub-pixel 50 and at least one second sub-pixel 60 which are adjacent; a plurality of first active switches 70, wherein the first sub-pixels 50 and the second sub-pixels 60 are respectively connected to the corresponding first active switches 70, a control end of the first active switch 70 is connected to a scan line corresponding to the first sub-pixel 50, and a data signal writing end of the first active switch 70 is respectively connected to a data line corresponding to the first sub-pixel 50 and an adjacent data line in the next column; and a plurality of second active switches 80, wherein the second sub-pixels 60 are connected to the corresponding second active switches 80, a control terminal of the second active switch 80 is connected to a next row of scan lines adjacent to the first sub-pixel 50, and a data signal write terminal of the second active switch 80 is connected to a common electrode signal line corresponding to the second sub-pixels 60, wherein the charging capability of the first active switch 70 is greater than that of the second active switch 80, and since there is a difference in driving voltages of adjacent sub-pixels, there is a difference in charging capability of driving transistors connected to adjacent sub-pixels, so that the adjacent sub-pixels realize high-low voltage alternation, thereby achieving the purpose of reducing color shift.

Referring to fig. 4, fig. 4 is a signal timing diagram of another embodiment of the display panel, in which the first active switch 70 is represented by T1, the second active switch 80 is represented by T2, and T2 has a smaller charging capability than T1.

It should be noted that the display panel adopts a driving method of an inverted flip-pixel design, a driving method of an inverted tri-gate pixel design, and other driving methods, which is not limited in this embodiment, and fig. 5 is a schematic circuit structure diagram of another embodiment of the display panel, in which the sequential scanning driving signals are VG from top to bottom_n、VG_n+1And VG_n+2…, the data driving signal is Vd from left to right_m、Vd_m+1And Vd_m+2…, in this embodiment, a driving method in which the display panel is designed to have inverted flip-pixel pixels will be described as an example.

In the specific implementation, the voltage interval of bright and dark pixels is realized by adopting a driving mode of flip-pixel design, and the adjacent sub-pixels are driven by the bright and dark voltages, so that the defect of color cast of the visual angle of the liquid crystal display can be improved. The higher voltage bright sub-pixel design has only one TFT element T1 for charging the sub-pixel, the darker voltage dark sub-pixel design has one TFT element T1 for charging the sub-pixel, and another TFT element T2 is driven by the next-stage scanning driving line, the TFT element T2 has smaller charging capacity than T1, the TFT element T2 is charged by the common electrode signal line 30Vst, the common electrode voltage is lower than the positive polarity driving signal and higher than the negative polarity driving signal, and the adjacent data driving lines drive driving signals of different polarities. The TFT element T2 is used to discharge the sub-pixel voltage to be displayed with dark brightness, so that the sub-pixel voltage with dark brightness is close to the Vst voltage of the common electrode signal line 30, and the adjacent data driving lines drive driving signals with different polarities, thereby achieving the purpose of improving color shift by using a high-low voltage alternation mode for the adjacent sub-pixels.

Continuing with FIGS. 1 and 4, the primary charge-driving TFT element T1 of the subpixel is shown asThe Flip-pixel design, data line 10 is shown in FIG. 1Vd_mThe data driving line VG is from top to bottom according to the scan driving signal_n、VG_n+1、VG_n+2… sequentially turn on the driving scan sub-pixel Vd_n-m、Vd_n+1-m、Vd_n+2-m… data write, Vd_mIs sequentially written into the sub-pixels Vd_n-m-1、Vd_n-m、Vd_n-m+1Driving voltage with the same polarity, at Vd_mThe data driving signal of (D) is positive polarity, and Vd is the same as the positive polarity_m+1Is sequentially written into the sub-pixels Vd_n-m+1、Vd_n+1-m+1、Vd_n+2-m+1… homopolar drive voltage, Vd_m+1The data driving signal of (2) is negative in polarity as an example. In order to exhibit the effect of viewing angle improvement by high and low voltage intervals, as shown in fig. 1, Vd is designed_n-m、Vd_n+1-m、Vd_n+2-m… is a high voltage sub-pixel, Vd_n-m+1、Vd_n+1-m+1、Vd_n+2-m+1… are low voltage sub-pixels. To realize Vd_n-m+1、Vd_n+1-m+1、Vd_n+2-m+1… is a low voltage sub-pixel, and another TFT element T2 is driven by the next scan drive line, Vd_n-m+1、Vd_n+1-m+1、Vd_n+2-m+1The sub-pixel is connected to the common electrode driving signal Vst via the TFT element T2, and VG is arranged from top to bottom according to the scanning driving signal_n、VG_n+1、VG_n+2… sequentially turn on the TFT element T2 to sub-pixel Vd_n-m+1、Vd_n+1-m+1、Vd_n+2-m+1… performs common electrode data writing. The common electrode voltage is lower than the positive polarity driving signal and higher than the negative polarity driving signal, and the subpixel Vd displaying the darker brightness can be displayed by the TFT element T2_n-m+1、Vd_n+1-m+1、Vd_n+2-m+1The voltage is discharged so that the sub-pixel voltage of the dark luminance is brought closer to the common electrode signal line 30Vst voltage. The TFT device T2 is designed to have a smaller charging capability than T1, so that the sub-pixel Vd_n-m+1、Vd_n+1-m+1、Vd_n+2-m+1… the final charging voltage is reduced compared with the original signal to achieve the pixel display of low voltage sub-pixel, realize the voltage drive of bright and dark pixel, and realize the real pixelThe defect of color cast of the visual angle of the liquid crystal display is improved.

After the inversion period, the polarity of the data driving signal is switched to the original Vd_mPositive polarity driving of data drive lines, Vd_m+1Data drive line negative polarity driving, converted into Vd_mNegative polarity driving of data drive lines, Vd_m+1The data driving lines are driven with positive polarity.

Continuing as shown in FIG. 4, the high voltage sub-pixel Vp_n-mAnd a low voltage sub-pixel Vp_n-m+1Voltage drive description. High voltage sub-pixel Vp_n-mThe final sub-pixel charging voltage is x. Low voltage sub-pixel Vp_n-m+1The charging voltage of the first period is x, and the common electrode driving voltage Vst is converged by the next-stage TFT element T2 voltage for the second period, so that the final sub-pixel charging voltage is x'<x, thereby driving the adjacent sub-pixels with bright and dark voltages to achieve the purpose of improving the color cast of the viewing angle of the liquid crystal display.

In one embodiment, when the data signal of the data line 10 is positive, the driving voltage of the data line 10 is greater than the reference voltage, and when the data signal of the data line 10 is negative, the driving voltage of the data line 10 is less than the reference voltage, where the reference voltage is the common electrode reference voltage of the first active switch 70 and the second active switch 80.

In this embodiment, the first scan line is VG_nFor example, the second scan line is VG_n+1The reference voltage is Vcom, and the first data line is Vd_n-mAnd the second data line is Vd_n-m+1That is, the positive driving voltage of the data driving signal is greater than the reference voltage, and since the second active switch T2 of the TFT device is charged by the common electrode signal line Vst, the common electrode voltage is lower than the positive driving signal and higher than the negative driving signal, the sub-pixel voltage to be displayed with darker brightness can be discharged, so that the sub-pixel voltage with dark brightness is close to the voltage of the common electrode signal line Vst, and the adjacent sub-pixel units realize high-low voltage alternation, thereby achieving the purpose of reducing color cast.

In one embodiment, when the first sub-pixel 50 is driven with positive polarity, the second sub-pixel 60 is driven with negative polarity.

In this embodiment, when the driving is performed with positive polarity, the first sub-pixel is enabled to realize low voltage, the second sub-pixel is enabled to realize high voltage, and the alternation of high voltage and low voltage of the adjacent sub-pixels is realized, so as to achieve the purpose of improving color cast.

In one embodiment, when the first sub-pixel 50 is driven with negative polarity, the second sub-pixel 60 is driven with positive polarity.

In this embodiment, it is ensured that, during the negative polarity driving, the first sub-pixel realizes the high voltage, the second sub-pixel realizes the low voltage, and the high-low voltage alternation of the adjacent sub-pixels is realized, thereby achieving the purpose of improving the color cast.

In order to achieve the above object, the present invention further provides a display device, as shown in fig. 6, which is a schematic structural diagram of an embodiment of the display device, where the display device includes the display panel and the driving module 200, the driving module 200 may include a scanning circuit 210 and a driving circuit 220, the scanning circuit 210 is configured to output a scanning signal, and generally scans the pixel units row by row, and the driving circuit 220 outputs a driving signal, so that the pixel units receive driving data when being scanned, and display the driving data.

The driving module 200 can refer to the above embodiments, and through this process, the sub-pixels in the pixel unit can be driven by different driving methods in accordance with the high and low voltages, so as to solve the color shift of the viewing angle.

The specific structure of the display panel refers to the above embodiments, and since the device adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

In order to achieve the above object, the present invention further provides a driving method of a display panel, as shown in fig. 7, which is a flowchart of an embodiment of the driving method of the display panel, and the driving method of the display panel is applied to the display device as described above, the display device includes a first sub-pixel, a second sub-pixel, a data line, a common electrode signal line, and a scan line scanned line by line, and the driving method of the display panel includes:

step S10, when the first sub-pixel and the second sub-pixel receive the driving signal of the scan line, the first sub-pixel and the second sub-pixel are charged through the data line; and

in step S20, when the second sub-pixel receives the driving signal of the common electrode signal line, the voltage of the second sub-pixel decreases.

According to the technical scheme provided by the embodiment, when the first sub-pixel and the second sub-pixel receive the driving signal of the scanning line, the data line is used for charging, and when the second sub-pixel receives the driving signal of the common electrode signal line, the voltage of the second sub-pixel is reduced because the charging capacity of the first active switch is greater than that of the second active switch, so that the charging capacities of the driving transistors connected with the adjacent sub-pixels are different, and the adjacent sub-pixels realize high-low voltage alternation, thereby achieving the purpose of reducing color cast.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural transformations, or direct/indirect applications in other related technical fields, which are within the spirit of the present invention, are included in the present invention.

Claims

1. A display panel, comprising: the display device comprises a first substrate, a second substrate and a display medium, wherein the first substrate and the second substrate are oppositely arranged, and the display medium is arranged between the first substrate and the second substrate; the first substrate includes:

2. The display panel of claim 1, wherein the at least one first sub-pixel and the at least one second sub-pixel are arranged in an intersection.

3. The display panel of claim 1, wherein the driving voltage of the data line is greater than a reference voltage when the data signal of the data line is positive, and the driving voltage of the data line is less than or equal to the reference voltage when the data signal of the data line is negative, wherein the reference voltage is a common electrode reference voltage of the first active switch and the second active switch.

4. A display panel as claimed in any one of claims 1 to 3 wherein adjacent data lines employ drive signals of opposite polarity.

5. The display panel according to any one of claims 1 to 3, wherein when the first sub-pixel is driven with a positive polarity, the second sub-pixel is driven with a negative polarity; and

when the first sub-pixel is driven in negative polarity, the second sub-pixel is driven in positive polarity.

6. The display panel according to any one of claims 1 to 3, wherein the common electrode signal line employs a driving voltage smaller than a driving voltage for positive polarity driving of the data line and larger than a driving voltage for negative polarity driving of the data line.

7. A display panel as claimed in any one of claims 1 to 3 wherein the first and second sub-pixels are arranged with opposite polarities.

8. The display panel according to any one of claims 1 to 3, wherein the first sub-pixel and the second sub-pixel are driven alternately with positive polarity driving and negative polarity driving, respectively.

9. A display device characterized in that it comprises a display panel according to any one of claims 1-8.

10. A driving method of a display panel applied to the display device according to claim 9, the display device including a first sub-pixel, a second sub-pixel, a data line, a common electrode signal line, and a scan line which is scanned line by line, the driving method of the display panel comprising: