CN109616075B

CN109616075B - Driving method, device and equipment of display panel and storage medium

Info

Publication number: CN109616075B
Application number: CN201910101645.7A
Authority: CN
Inventors: 单剑锋
Original assignee: HKC Co Ltd
Current assignee: HKC Co Ltd
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2021-04-06
Anticipated expiration: 2039-01-30
Also published as: WO2020155261A1; CN109616075A

Abstract

The invention discloses a driving method, a device, equipment and a storage medium of a display panel, wherein when the current time sequence is a first preset time sequence, negative polarity driving is carried out on high-voltage positive sub-pixels and low-voltage negative sub-pixels in a first row of pixel units and a second row of pixel units by adopting a negative polarity common electrode voltage of a first preset voltage; the high-voltage negative electrode sub-pixels and the low-voltage positive electrode sub-pixels in the second row of pixel units and the third row of pixel units are subjected to positive polarity driving by adopting a positive polarity common electrode voltage of a second preset voltage, and the high-voltage pixels and the low-voltage pixels are alternately arranged to be subjected to positive and negative polarity driving according to the common electrode voltage, so that the visual angle color cast is solved, the defects of power consumption increase, temperature rise and panel brightness reduction caused by the increase of driving amplitude are overcome, the display effect is improved, and the user experience is improved.

Description

Driving method, device and equipment of display panel and storage medium

Technical Field

The present invention relates to the field of liquid crystal displays, and in particular, to a method, an apparatus, a device, and a storage medium for driving a display panel.

Background

Large-sized liquid crystal display panels mostly adopt a negative Vertical Alignment (VA) type or an in-plane switching (IPS) type. The VA liquid crystal technology has the advantages of higher production efficiency and lower manufacturing cost compared to the IPS liquid crystal technology, but has more obvious optical property defects compared to the IPS liquid crystal technology, for example, when a large-viewing-angle image is displayed, the VA liquid crystal display panel has color cast. When displaying an image, the luminance of the pixel should ideally change linearly with the voltage, so that the driving voltage of the pixel can accurately represent the gray scale of the pixel and be represented by the luminance. As shown in fig. 1a, when the VA mode liquid crystal technology is used, when the display surface is viewed with a small viewing angle (for example, front view), the brightness of the pixel can be in accordance with the ideal situation, i.e. it is linearly changed with the voltage, as shown by the ideal curve in fig. 1 a; however, when the display surface is viewed at a larger viewing angle (for example, over 160 degrees from the display surface), the brightness of the pixel exhibits a fast saturation with voltage and then a slow change due to the principle of the VA-mode liquid crystal technology, as shown in the actual curve of fig. 1 a. Thus, in a large viewing angle, the gray scale that the driving voltage should originally exhibit is greatly deviated, i.e., color shift occurs. The conventional way to improve color shift is to subdivide each sub-pixel into a main pixel and a sub-pixel, then drive the main pixel with a relatively high driving voltage and drive the sub-pixel with a relatively low driving voltage, and the main pixel and the sub-pixel together display one sub-pixel. And the relatively high driving voltage and the relatively low driving voltage can keep the relation between the brightness at the front viewing angle and the corresponding gray scale unchanged when the main pixel and the sub-pixel are driven. Generally, in the manner shown in fig. 1b, in the first half of the gray scale, the main pixel is driven to display by a relatively high driving voltage, the sub-pixel is not displayed, and the brightness of the whole sub-pixel is half of the brightness of the main pixel; in the second half of the gray scale, the main pixel is driven to display by a relatively high driving voltage, the sub-pixel is driven to display by a relatively low driving voltage, and the brightness of the whole sub-pixel is half of the sum of the brightness of the main pixel and the brightness of the sub-pixel. Thus, the luminance curve at large viewing angle is similar to the actual curve in fig. 1b, and the color shift is improved at large viewing angle.

The conventional display has improved resolution, and the voltage driving frequency of the same row of pixel driving voltage (wherein, the driving signals of the high-voltage sub-pixel and the low-voltage sub-pixel are different) is improved, and if the adjacent sub-pixels adopt the traditional positive and negative polarity driving mode, the driving amplitude of the adjacent sub-pixels is improved, the driving frequency is improved, the driving amplitude is increased, which directly causes the increase of power consumption and temperature of the driving integrated circuit, and may cause the reduction of pixel charging capability, which directly reflects the reduction of panel brightness.

Disclosure of Invention

The invention mainly aims to provide a driving method, a driving device and a driving storage medium of a display panel, and aims to solve the problems that in the prior art, the power consumption of a driving integrated circuit is increased and the temperature is increased directly due to the increase of driving amplitude, and the brightness of the panel is reduced due to the reduction of pixel charging capacity.

In order to achieve the above object, the present invention provides a driving method of a display panel, including:

the display panel comprises a display array, the display array comprises pixel units which are arranged in an array mode, each pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel in the row direction, and the three sub-pixels of each pixel unit are aligned on a column according to the arrangement sequence; the driving method includes:

when the current time sequence is a first preset time sequence, carrying out negative polarity driving on high-voltage positive sub-pixels and low-voltage negative sub-pixels in a first row of pixel units and a second row of pixel units by adopting a negative polarity common electrode voltage of a first preset voltage, and carrying out positive polarity driving on high-voltage negative sub-pixels and low-voltage positive sub-pixels in the second row of pixel units and a third row of pixel units by adopting a positive polarity common electrode voltage of a second preset voltage, wherein the first preset voltage is smaller than an original common electrode voltage, and the second preset voltage is larger than the original common electrode voltage;

when receiving a data driving signal input by a data driving circuit and carrying out time sequence inversion, carrying out periodic inversion on the first preset voltage and the second preset voltage;

when the current time sequence is switched from the first preset time sequence to the second preset time sequence, the high-voltage negative sub-pixels and the low-voltage positive sub-pixels of the first row of pixel units and the second row of pixel units are driven in positive polarity by adopting a positive common electrode voltage of a first preset voltage, and the high-voltage positive sub-pixels and the low-voltage negative sub-pixels of the second row of pixel units and the third row of pixel units are driven in negative polarity by adopting a negative common electrode voltage of a second preset voltage.

Preferably, before periodically inverting the first preset voltage and the second preset voltage when receiving a data driving signal input by a data driving circuit for timing inversion, the driving method of the display panel further includes:

selecting any two adjacent pixel units in the row direction, and acquiring the voltage states of the first adjacent sub-pixel unit and the second adjacent sub-pixel unit;

when the voltage state of the first adjacent sub-pixel unit is low voltage and the voltage state of the second adjacent sub-pixel unit is high voltage, driving a second sub-pixel in the first adjacent sub-pixel unit by adopting a positive polarity driving signal, and driving a second sub-pixel in the second adjacent sub-pixel unit by adopting a negative polarity driving signal;

and when the voltage state of the first adjacent sub-pixel unit is high voltage and the voltage state of the second adjacent sub-pixel unit is low voltage, driving a second sub-pixel in the first adjacent sub-pixel unit by adopting a negative polarity driving signal, and driving a second sub-pixel in the second adjacent sub-pixel unit by adopting a positive polarity driving signal.

Preferably, after selecting any two adjacent pixel units in the column direction and obtaining the voltage states of the first adjacent sub-pixel unit and the second adjacent sub-pixel unit, the driving method of the display panel further includes:

and when the first preset voltage and the second preset voltage meet preset conditions, driving equivalent driving voltages of a high-voltage sub-pixel and a low-voltage sub-pixel in the selected sub-pixels by adopting preset data driving signals, wherein the preset data driving signals are average signals of driving signals of two adjacent sub-pixels in the original same row.

Preferably, after the first preset voltage and the second preset voltage are periodically inverted when the data driving signal input by the data driving circuit is received for timing inversion, the driving method of the display panel further includes:

two adjacent sub-pixels in the same row are respectively selected, and the equivalent driving voltage of the high-voltage sub-pixel in the selected sub-pixels is driven by the equivalent driving voltage which is larger than that of the low-voltage sub-pixel in the selected sub-pixels.

Preferably, the first sub-pixel, the second sub-pixel and the third sub-pixel are a red sub-pixel, a green sub-pixel and a blue sub-pixel in sequence, and the red sub-pixel, the green sub-pixel and the blue sub-pixel are heteropolarity sub-pixels.

Further, the present invention also provides a driving method of a display panel, wherein the display array includes pixel units arranged in an array, the pixel units include a first sub-pixel, a second sub-pixel and a third sub-pixel in a row direction, and three sub-pixels of each pixel unit are aligned on a column according to an arrangement sequence; the driving method includes:

respectively selecting two adjacent sub-pixels in the same row, and driving the equivalent driving voltage of the high-voltage sub-pixel in the selected sub-pixels by the equivalent driving voltage which is greater than the equivalent driving voltage of the low-voltage sub-pixel in the selected sub-pixels;

when the current time sequence is switched from the first preset time sequence to the second preset time sequence, the high-voltage negative sub-pixels and the low-voltage positive sub-pixels of the first row of pixel units and the second row of pixel units are subjected to positive polarity driving by adopting a positive polarity common electrode voltage of a first preset voltage, and the high-voltage positive sub-pixels and the low-voltage negative sub-pixels of the second row of pixel units and the third row of pixel units are subjected to negative polarity driving by adopting a negative polarity common electrode voltage of a second preset voltage, wherein the inverted first preset voltage is larger than the original common electrode voltage, and the inverted second preset voltage is smaller than the original common electrode voltage.

when the voltage state of the first adjacent sub-pixel unit is low voltage and the voltage state of the second adjacent sub-pixel unit is high voltage, driving a second sub-pixel in the first adjacent sub-pixel unit by adopting a positive polarity driving signal, driving a first sub-pixel and a third sub-pixel in the first adjacent sub-pixel unit by adopting a negative polarity driving signal, driving a second sub-pixel in the second adjacent sub-pixel unit by adopting a negative polarity driving signal, and driving a first sub-pixel and a third sub-pixel in the second adjacent sub-pixel unit by adopting a positive polarity driving signal;

when the voltage state of the first adjacent sub-pixel unit is high voltage, and the voltage state of the second adjacent sub-pixel unit is low voltage, driving the second sub-pixel in the first adjacent sub-pixel unit by using a negative polarity driving signal, driving the first sub-pixel and the third sub-pixel in the first adjacent sub-pixel unit by using a positive polarity driving signal, driving the second sub-pixel in the second adjacent sub-pixel unit by using a positive polarity driving signal, and driving the first sub-pixel and the third sub-pixel in the second adjacent sub-pixel unit by using a negative polarity driving signal.

In order to achieve the above object, the present invention also provides a driving apparatus for a display panel, comprising: the display device comprises a display array, a first light source and a second light source, wherein the display array comprises pixel units which are arranged in an array mode and are alternately arranged by a first pixel unit and a second pixel unit; the driving device of the display panel includes: the display device comprises a display array, a pixel unit and a control unit, wherein the display array comprises pixel units which are arranged in an array mode, the pixel units comprise first sub-pixels, second sub-pixels and third sub-pixels in the row direction, and the three sub-pixels of each pixel unit are aligned on a column according to the arrangement sequence;

the driving device of the display panel includes:

the common electrode driving module is set to take the pixel units of at least three rows after scanning as a driving period, and the common electrodes of the sub-pixels in the pixel units are driven by adopting preset voltage in the current driving period;

the common electrode driving module is further configured to drive the high-voltage sub-pixels in the pixel units with positive polarity and drive the low-voltage sub-pixels in the pixel units with negative polarity when the preset voltage is a negative polarity driving voltage, and the preset voltage is smaller than a reference voltage;

the inversion module is used for periodically inverting the preset voltage when receiving the inversion of a data driving signal input by the data driving circuit;

the common electrode driving module is further configured to drive the high-voltage sub-pixels in the pixel units with negative polarity and drive the low-voltage sub-pixels in the pixel units with positive polarity when the inverted preset voltage is a positive polarity driving voltage, and the inverted preset voltage is greater than the reference voltage.

Further, to achieve the above object, the present invention also proposes a display device characterized by comprising: the display panel comprises a display array, the display array comprises pixel units which are arranged in an array, each pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel in the row direction, and the three sub-pixels of each pixel unit are aligned on a column according to the arrangement sequence; the driver of the display panel is configured to implement the steps of the driving method of the display panel as described above.

In addition, in order to achieve the above object, the present invention further provides a computer-readable storage medium, wherein a driver of a display panel is stored on the computer-readable storage medium, and the driver of the display panel, when executed by a processor, implements the steps of the driving method of the display panel as described above.

The driving method of the display panel provided by the invention comprises the steps that when the current time sequence is a first preset time sequence, negative polarity driving is carried out on high-voltage positive sub-pixels and low-voltage negative sub-pixels in pixel units of a first row and pixel units of a second row by adopting a negative polarity common electrode voltage of a first preset voltage, and positive polarity driving is carried out on the high-voltage negative sub-pixels and the low-voltage positive sub-pixels in the pixel units of the second row and pixel units of a third row by adopting a positive polarity common electrode voltage of a second preset voltage, wherein the first preset voltage is smaller than an original common electrode voltage, and the second preset voltage is larger than the original common electrode voltage; when receiving a data driving signal input by a data driving circuit and carrying out time sequence inversion, carrying out periodic inversion on the first preset voltage and the second preset voltage; when the current time sequence is switched from the first preset time sequence to a second preset time sequence, the high-voltage negative sub-pixels and the low-voltage positive sub-pixels of the first row of pixel units and the second row of pixel units are driven in positive polarity by a positive common electrode voltage of a first preset voltage, the high-voltage positive sub-pixels and the low-voltage negative sub-pixels in the second row of pixel units and the third row of pixel units are subjected to negative polarity driving by adopting a negative polarity common electrode voltage of a second preset voltage, the high-voltage pixels and the low-voltage pixels are alternately arranged to carry out positive and negative polarity driving according to the common electrode voltage, and alternate positive and negative polarity driving arrangement is adopted in the row direction in cooperation with the common electrode voltage to solve the color cast of the visual angle, and the defects of power consumption increase, temperature rise and panel brightness reduction caused by the increase of the driving amplitude are avoided, the display effect is improved, and the user experience is improved.

Drawings

FIG. 1a is a graph showing the relationship between an improved front color shift curve and an ideal curve;

FIG. 1b is a graph showing the relationship between the improved color shift curve and the ideal curve;

fig. 2 is a schematic structural diagram of a display device of a hardware operating environment according to an embodiment of the present invention;

FIG. 3 is a flowchart illustrating a driving method of a display panel according to a first embodiment of the present invention;

FIG. 4 is a schematic diagram of a pixel driving arrangement of a driving method of a display panel according to the present invention;

FIG. 5 is a schematic diagram of a first predetermined timing sequence of pixel driving according to the driving method of the display panel of the present invention;

FIG. 6 is a diagram of a second predetermined timing for Vrd pixel driving in a display panel according to the present invention;

FIG. 7 is a schematic structural diagram of a driving apparatus for a display panel according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a driving apparatus of a display panel according to another embodiment of the invention.

The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The solution of the embodiment of the invention is mainly as follows: when the current time sequence is a first preset time sequence, carrying out negative polarity driving on high-voltage positive polarity sub-pixels and low-voltage negative polarity sub-pixels in a first row of pixel units and a second row of pixel units by adopting a negative polarity common electrode voltage of a first preset voltage, and carrying out positive polarity driving on high-voltage negative polarity sub-pixels and low-voltage positive polarity sub-pixels in the second row of pixel units and a third row of pixel units by adopting a positive polarity common electrode voltage of a second preset voltage, wherein the first preset voltage is smaller than an original common electrode voltage, and the second preset voltage is larger than the original common electrode voltage; when receiving a data driving signal input by a data driving circuit and carrying out time sequence inversion, carrying out periodic inversion on the first preset voltage and the second preset voltage; when the current time sequence is switched from the first preset time sequence to the second preset time sequence, the high-voltage negative sub-pixels and the low-voltage positive sub-pixels of the first row of pixel units and the second row of pixel units are driven in positive polarity by adopting a positive common electrode voltage of a first preset voltage, the high-voltage positive sub-pixels and the low-voltage negative sub-pixels in the second row of pixel units and the third row of pixel units are driven in negative polarity by adopting a negative common electrode voltage of a second preset voltage, the high-voltage pixels and the low-voltage pixels are alternately arranged and driven in positive and negative polarity according to the common electrode voltage, and alternate positive and negative polarity driving arrangement is adopted in the array direction by matching with the common electrode voltage, so that the visual angle color cast is solved, the defects of power consumption increase, temperature rise and panel brightness reduction caused by the increase of driving amplitude are avoided, the display effect is improved, and the user experience is improved, the problems that in the prior art, the power consumption of a driving integrated circuit is increased and the temperature is increased directly due to the increase of the driving amplitude, and the brightness of a panel is reduced due to the reduction of the pixel charging capacity are solved.

Referring to fig. 2, fig. 2 is a schematic structural diagram of a display device in a hardware operating environment according to an embodiment of the present invention.

As shown in fig. 2, the display apparatus may include: a processor 1001 such as a CPU, a communication bus 1002, a user interface 1003, a display panel 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may also be a storage device independent of the processor 1001, and the display panel 1004 may be a liquid crystal display panel, or other display panels capable of implementing the same or similar functions.

Those skilled in the art will appreciate that the display device configuration shown in fig. 2 does not constitute a limitation of the display device and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

As shown in fig. 2, a memory 1005, which is a kind of computer storage medium, may include a driver of the display panel therein.

The processor 1001 and the memory 1005 in the display device of the present invention may be provided in a display device which calls a driver of a display panel stored in the memory 1005 through the processor 1001 and performs the following operations:

Further, the processor 1001 may call a driver of the display panel stored in the memory 1005, and also perform the following operations:

the first sub-pixel, the second sub-pixel and the third sub-pixel are sequentially a red sub-pixel, a green sub-pixel and a blue sub-pixel, and the red sub-pixel, the green sub-pixel and the blue sub-pixel are heteropolarity sub-pixels.

In this embodiment, when the current time sequence is a first preset time sequence, negative polarity driving is performed on high-voltage positive polarity sub-pixels and low-voltage negative polarity sub-pixels in a first row of pixel units and a second row of pixel units by using a negative polarity common electrode voltage of a first preset voltage, and positive polarity driving is performed on high-voltage negative polarity sub-pixels and low-voltage positive polarity sub-pixels in the second row of pixel units and a third row of pixel units by using a positive polarity common electrode voltage of a second preset voltage, where the first preset voltage is smaller than an original common electrode voltage, and the second preset voltage is greater than the original common electrode voltage; when receiving a data driving signal input by a data driving circuit and carrying out time sequence inversion, carrying out periodic inversion on the first preset voltage and the second preset voltage; when the current time sequence is switched from the first preset time sequence to a second preset time sequence, the high-voltage negative sub-pixels and the low-voltage positive sub-pixels of the first row of pixel units and the second row of pixel units are driven in positive polarity by a positive common electrode voltage of a first preset voltage, the high-voltage positive sub-pixels and the low-voltage negative sub-pixels in the second row of pixel units and the third row of pixel units are subjected to negative polarity driving by adopting a negative polarity common electrode voltage of a second preset voltage, the high-voltage pixels and the low-voltage pixels are alternately arranged to carry out positive and negative polarity driving according to the common electrode voltage, and alternate positive and negative polarity driving arrangement is adopted in the row direction in cooperation with the common electrode voltage to solve the color cast of the visual angle, and the defects of power consumption increase, temperature rise and panel brightness reduction caused by the increase of the driving amplitude are avoided, the display effect is improved, and the user experience is improved.

Based on the above hardware structure, an embodiment of a driving method of a display panel according to the present invention is provided.

Referring to fig. 3, fig. 3 is a flowchart illustrating a driving method of a display panel according to a first embodiment of the present invention.

In a first embodiment, the driving method of the display panel includes the steps of:

step S10, when the current timing sequence is a first preset timing sequence, performing negative polarity driving on the high-voltage positive sub-pixels and the low-voltage negative sub-pixels in the first row of pixel units and the second row of pixel units by using a negative polarity common electrode voltage of a first preset voltage, and performing positive polarity driving on the high-voltage negative sub-pixels and the low-voltage positive sub-pixels in the second row of pixel units and the third row of pixel units by using a positive polarity common electrode voltage of a second preset voltage, where the first preset voltage is smaller than the original common electrode voltage, and the second preset voltage is greater than the original common electrode voltage.

It should be noted that the first sub-pixel, the second sub-pixel, and the third sub-pixel are sequentially a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and the red sub-pixel, the green sub-pixel, and the blue sub-pixel are heteropolarity sub-pixels; in the pixel design of the liquid crystal display panel in this embodiment, a red sub-pixel, a green sub-pixel, and a blue sub-pixel are a pixel unit, that is, the first sub-pixel, the second sub-pixel, and the third sub-pixel are respectively corresponding to a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and the red sub-pixel, the green sub-pixel, and the blue sub-pixel are heteropolar sub-pixels, and each pixel unit adopts a high-low voltage interleaving driving arrangement mode, the lower pixels of each column are aligned with the upper pixels, the pixel colors are the same, and the sub-pixels in the pixel units in the column direction are aligned with the sub-pixels of the upper pixel units.

It is understood that, referring to fig. 4, fig. 4 is a schematic diagram of a pixel driving arrangement of a driving method of a display panel according to the present invention; when the current time sequence is a first preset time sequence, the high-voltage positive sub-pixels and the low-voltage negative sub-pixels of the first row of sub-pixels and the second row of sub-pixels, namely the red sub-pixels R and the blue sub-pixels B, are matched with a common electrode negative polarity circuit and voltage drive, namely the common electrode voltage negative polarity, namely the common electrode voltage Vcom1 is smaller than the original common electrode voltage Vcom, namely Vcom1 is smaller than Vcom; the high voltage negative sub-pixels and the low voltage positive sub-pixels of the second and third columns of sub-pixels, i.e. the green sub-pixels G, are driven by a common electrode positive polarity circuit and voltage, i.e. the common electrode voltage positive polarity, i.e. the common electrode voltage Vcom2, is larger than the original common electrode voltage Vcom, i.e. Vcom2> Vcom. In this way, every two rows of common electrode voltage circuits and driving are matched with the common electrode circuits and voltage driving according to the high-voltage positive electrode sub-pixels and the low-voltage negative electrode sub-pixels or the high-voltage negative electrode sub-pixels and the low-voltage positive electrode sub-pixels.

Step S20, when receiving the data driving signal input by the data driving circuit and performing timing inversion, periodically inverting the first preset voltage and the second preset voltage.

It is understood that the data driving signals input by the data driving circuit are time-sequence inverted into voltages corresponding to the data driving signals, which can be generally described as Vgd, Vrd, Vbd, d being constants 1, 2, 3, etc., Vgd, Vrd, and Vbd respectively corresponding to the initial driving voltages of the green sub-pixel, the red sub-pixel, and the green sub-pixel, and of course, other types of initial driving voltages may be used, which is not limited in this embodiment; any sub-pixel is driven by an equivalent voltage.

It should be understood that, in fig. 4, when the current timing is the first preset timing, the common electrode voltage Vcom2 of the G-column sub-pixel low-voltage sub-pixels VGd _1, VGd _3, VGd _5 corresponding to the high-voltage sub-pixels VGd _2, VGd _4, VGd _6 is a positive polarity driving voltage, i.e., the common electrode voltage Vcom2 is larger than the original common electrode voltage Vcom, i.e., Vcom2> Vcom; after receiving the data driving signal inputted by the data driving circuit for timing inversion, the common electrode voltage is also switched to the frame periodic voltage in coordination with the polarity inversion, i.e. the common electrode voltage Vcom1 is changed to the positive polarity driving voltage, and the positive polarity of the common electrode voltage, i.e. the common electrode voltage Vcom1, is larger than the original common electrode voltage Vcom, i.e. Vcom1> Vcom; the common electrode voltage Vcom2 becomes a negative polarity driving voltage, and the negative polarity of the common electrode voltage, i.e., the common electrode voltage Vcom2, is smaller than the original common electrode voltage Vcom, i.e., Vcom2< Vcom. In addition, the low-voltage sub-pixels VGd _1, VGd _3, and VGd _5 are driven from positive polarity to negative polarity, and the high-voltage sub-pixels VGd _2, VGd _4, and VGd _6 are driven from negative polarity to positive polarity.

Step S30, when the current timing sequence is switched from the first preset timing sequence to the second preset timing sequence, performing positive polarity driving on the high-voltage negative sub-pixels and the low-voltage positive sub-pixels of the first row of pixel units and the second row of pixel units by using a positive common electrode voltage of the first preset voltage, and performing negative polarity driving on the high-voltage positive sub-pixels and the low-voltage negative sub-pixels of the second row of pixel units and the third row of pixel units by using a negative common electrode voltage of the second preset voltage.

It is to be understood that reference is made to fig. 4; when the current time sequence is switched from the first preset time sequence to a second preset time sequence, the high-voltage negative sub-pixels and the low-voltage positive sub-pixels of the first column of sub-pixels and the second column of sub-pixels, namely the red sub-pixels and the blue sub-pixels, are matched with a common electrode positive polarity circuit and voltage drive, and the common electrode voltage positive polarity, namely the common electrode voltage Vcom1 is larger relative to the original common electrode voltage Vcom, namely Vcom1> Vcom; the high voltage positive sub-pixels and the low voltage negative sub-pixels of the second and third columns of sub-pixels, i.e. the green sub-pixels, are driven by a common electrode negative polarity circuit and voltage, the common electrode voltage negative polarity, i.e. the common electrode voltage Vcom2, is larger than the original common electrode voltage Vcom, i.e. Vcom2< Vcom; in this way, every two rows of common electrode voltage circuits and driving are matched with the common electrode circuits and voltage driving according to the high-voltage negative electrode sub-pixels and the low-voltage positive electrode sub-pixels or the high-voltage positive electrode sub-pixels and the low-voltage negative electrode sub-pixels.

Further, before the step S20, the method for driving a display panel further includes the steps of:

Correspondingly, after the step S20, the method for driving a display panel further includes the steps of:

It should be understood that, referring to fig. 5, fig. 5 is a schematic diagram of a first preset timing sequence of pixel driving in the driving method of the display panel according to the present invention; the low-voltage positive polarity driving signals Vgd ═ V1, V2, V3 … of the G rows, and the low-voltage negative polarity motion signals Vgd ═ V1 ', V2', V3 '…, where (1, V2, V3 … > Vcom, V1', V2 ', V3' … · Vcom). When the Frame1 is Frame-sequential, the low-voltage sub-pixel equivalent driving voltage VGd _1 is the voltage difference between the positive polarity driving voltage Vgd ═ V1(V1> Vcom) and the positive polarity common electrode Vcom2(Vcom2> Vcom), i.e. VGd _1 ═ V1-Vcom2|, and the next adjacent high-voltage sub-pixel VGd _2 is the voltage difference between the negative polarity driving voltage Vgd ═ V1 '(V1 < Vcom) and the positive polarity common electrode Vcom2(Vcom2> Vcom), i.e. VGd _2 ═ V1' -Vcom2|, i.e. VGd _1< VGd _ 2. Similarly, the low voltage VGd _3 and the high voltage sub-pixel VGd _4 are sequentially driven, the low voltage sub-pixel equivalent driving voltage VGd _3 is the voltage difference between the positive polarity driving voltage Vgd ═ V2(V2> Vcom) and the positive polarity common electrode Vcom2(Vcom2> Vcom), i.e. VGd _3 ═ V2-Vcom2|, the next adjacent low voltage sub-pixel VGd _4 is the voltage difference between the negative polarity driving voltage Vgd ═ V2 ' (V2 ' < Vcom) and the positive polarity common electrode Vcom2(Vcom2> Vcom), i.e. VGd _4 | V2 ' -Vcom2|, so VGd _3< VGd _4, the subsequent VGd _5 and VGd _6 and more VGd _ n, and so on, the target equivalent voltage of the high voltage sub-pixel is greater than the target equivalent voltage of the low voltage sub-pixel.

Further, after selecting any two adjacent pixel units in the column direction and obtaining the voltage states of the first adjacent sub-pixel unit and the second adjacent sub-pixel unit, the driving method of the display panel further includes the following steps:

It should be understood that, referring to fig. 4 and 5, the equivalent voltages VGd _1 and VGd _2 are driven by the positive driving voltage Vgd-V1 and the negative driving voltage Vgd-V1 ', respectively, and the positive driving voltage V1 and the negative driving voltage V1 ' may be preferably an average signal (8 bits, 0 to 255 signals for the driving signals) of the original frame pixel signals Gd1 and Gd2, that is, G1 is (Gd1+ Gd2)/2, and the positive driving voltage V1 and the negative driving voltage V1 ' corresponding to the G1 signals. VGd _3 and VGd _4 are driven by the positive driving voltage Vgd-V2 and the negative driving voltage Vgd-V2 ', respectively, and thus the average signal of the original frame pixel signals Gd3 and Gd4 (0 to 255 signals in the case of an 8-bit driving signal), i.e., G2 is (Gd3+ Gd4)/2, and the positive driving voltage V2 and the negative driving voltage V2' corresponding to the G2 signals, may be preferred.

Further, when the current time sequence is switched from the first preset time sequence to the second preset time sequence, the high-voltage negative sub-pixels and the low-voltage positive sub-pixels of the first row of pixel units and the second row of pixel units are subjected to positive polarity driving by adopting a positive polarity common electrode voltage of a first preset voltage, and the high-voltage positive sub-pixels and the low-voltage negative sub-pixels of the second row of pixel units and the third row of pixel units are subjected to negative polarity driving by adopting a negative polarity common electrode voltage of a second preset voltage, wherein the inverted first preset voltage is greater than an original common electrode voltage, and the inverted second preset voltage is less than the original common electrode voltage.

It should be noted that, referring to fig. 4 and fig. 6, fig. 6 is a schematic diagram of a second preset timing sequence for driving Vrd pixels according to the driving method of the display panel of the present invention; when the current time sequence is switched from the first preset time sequence to a second preset time sequence, driving the first adjacent pixel unit by adopting a positive polarity driving voltage, and driving the second adjacent pixel unit by adopting a negative polarity driving voltage; when the current timing sequence is the second preset timing sequence, the low-voltage negative sub-pixels and the high-voltage positive sub-pixels (the red sub-pixels R and the blue sub-pixels B) of the first column of sub-pixels and the second column of sub-pixels cooperate with a common electrode positive polarity circuit and voltage drive (the common electrode voltage positive polarity, i.e., the common electrode voltage Vcom1, is larger than the original common electrode voltage Vcom, i.e., Vcom1> Vcom); the high voltage positive sub-pixels and the low voltage negative sub-pixels (G sub-pixels) of the second and third columns of sub-pixels are coupled to a common electrode negative polarity circuit and voltage drive (the common electrode voltage negative polarity, i.e. the common electrode voltage Vcom2, is larger than the original common electrode voltage Vcom, i.e. Vcom2< Vcom); in this way, every two rows of common electrode voltage circuits and driving are matched with the common electrode circuits and voltage driving according to the low-voltage negative electrode sub-pixels and the high-voltage positive electrode sub-pixels or the high-voltage positive electrode sub-pixels and the low-voltage negative electrode sub-pixels.

It is understood that when the current timing is switched from the first preset timing to the second preset timing, the common electrode voltage is also reversed in coordination with the polarity switching, i.e., the common electrode voltage Vcom1 is changed to the positive polarity driving voltage (the common electrode voltage positive polarity, i.e., the common electrode voltage Vcom1, is larger than the original common electrode voltage Vcom, i.e., Vcom1> Vcom). The common electrode voltage Vcom2 becomes a negative polarity driving voltage (the common electrode voltage negative polarity, i.e., the common electrode voltage Vcom2, is smaller than the original common electrode voltage Vcom, i.e., Vcom2< Vcom). In addition, the low-voltage sub-pixels VGd _1, VGd _3, and VGd _5 are driven from positive polarity to negative polarity, and the high-voltage sub-pixels VGd _2, VGd _4, and VGd _6 are driven from negative polarity to positive polarity.

Further, the step S20 is preceded by the following steps:

It can be understood that, referring to fig. 6, the common electrode voltage Vcom1 corresponding to the R row sub-pixel low-voltage sub-pixels VRd _1, VRd _3, VRd _5 and the high-voltage sub-pixels VRd _2, VRd _4, VRd _6 is a negative polarity driving voltage, and the negative polarity of the common electrode voltage, i.e., the common electrode voltage Vcom1, is smaller than the original common electrode voltage Vcom, i.e., the common electrode Vcom1< Vcom. The positive polarity driving voltage signal Vrd of the R row is V1, V2, V3 …, and the negative polarity driving voltage signal Vrd is V1 ', V2', V3 '…, where 1, V2, V3 … > Vcom, V1', V2 ', V3' … < Vcom. When the Frame1 is Frame-sequential, the low-voltage sub-pixel equivalent driving voltage VRd _1 is the voltage difference between the negative polarity driving voltage Vrd ═ V1 ' (V1 ' < Vcom) and the negative polarity common electrode Vcom1(Vcom1< Vcom), that is VRd _1 ═ V1 ' -Vcom1|, and the next adjacent high-voltage sub-pixel VRd _2 is the voltage difference between the positive polarity driving voltage Vrd ═ V1(V1> Vcom) and the negative polarity common electrode Vcom1(Vcom1< Vcom), that is VGd _2 ═ V1-Vcom1|, so VGd _1< VGd _ 2. Similarly, the low voltage VGd _3 and the high voltage sub-pixel VGd _4 are sequentially driven, the low voltage sub-pixel equivalent driving voltage VRd _3 is the voltage difference between the negative polarity driving voltage Vrd ═ V2 ' (V2 ' < Vcom) and the negative polarity common electrode Vcom1(Vcom1< Vcom), that is, VGd _3 ═ V2 ' -Vcom1|, and the next adjacent low voltage sub-pixel VGd _4 is the voltage difference between the positive polarity driving voltage Vgd ═ V2(V2> Vcom) and the negative polarity common electrode Vcom1(Vcom1< Vcom), that is, VGd _4 | V2-Vcom1|, so VGd _3< VGd _ 4.

In the embodiment, when the current time sequence is a first preset time sequence, negative polarity driving is performed on first sub-pixels and third sub-pixels in a first row of pixel units and a second row of pixel units by using a negative polarity common electrode voltage of a first preset voltage, and positive polarity driving is performed on second sub-pixels in the second row of pixel units and third row of pixel units by using a positive polarity common electrode voltage of a second preset voltage, wherein the first preset voltage is smaller than an original common electrode voltage, and the second preset voltage is larger than the original common electrode voltage; selecting any two adjacent pixel units, and driving a second sub-pixel in a selected first adjacent pixel unit and a second sub-pixel in a selected second adjacent pixel unit by adopting a first equivalent voltage, wherein the first equivalent voltage is the voltage difference between an initial driving voltage and the positive common electrode voltage; when the current time sequence is switched from the first preset time sequence to the second preset time sequence, the first adjacent pixel unit is driven by adopting a positive polarity driving voltage, the second adjacent pixel unit is driven by adopting a negative polarity driving voltage, the high-voltage pixels and the low-voltage pixels are alternately arranged to be driven by positive and negative polarities according to a common electrode voltage, and the common electrode voltage is matched to be alternately arranged by adopting the positive and negative polarity driving arrangement in the row direction, so that the visual angle color cast is solved, the defects of power consumption increase, temperature rise and panel brightness reduction caused by the increase of driving amplitude are avoided, the display effect is improved, and the user experience is improved.

In addition, the embodiment of the invention also provides a driving device of the display panel. As shown in fig. 7, the display panel includes a display array including pixel units arranged in an array, and the pixel units are alternately arranged by first pixel units and second pixel units; the driving device of the display panel includes:

the common electrode driving module 110 is configured to use a pixel unit that has scanned at least three rows as a driving cycle, and drive the common electrodes of the sub-pixels in the pixel unit by using a preset voltage in the current driving cycle;

the common electrode driving module 110 is further configured to drive the high voltage sub-pixels in the pixel units with positive polarity and drive the low voltage sub-pixels in the pixel units with negative polarity when the preset voltage is a negative polarity driving voltage, where the preset voltage is smaller than the reference voltage;

the inversion module 120 is configured to periodically invert the preset voltage when receiving a data driving signal input by the data driving circuit for inversion;

the common electrode driving module 110 is further configured to drive the high voltage sub-pixels in the pixel units with negative polarity and drive the low voltage sub-pixels in the pixel units with positive polarity when the inverted preset voltage is a positive polarity driving voltage, where the inverted preset voltage is greater than the reference voltage.

As shown in fig. 8, the driving apparatus of the display panel further includes a display array 100 and a driving module 200, where the driving module 200 may include a scanning unit 210 and a driving unit 220, the scanning unit 210 is configured to output a scanning signal, and generally scans the pixel units row by row, and the driving unit 220 outputs a driving signal, so that the pixel units receive driving data when being scanned, and perform display.

The driving module 200 may refer to the above-described embodiment, and through this process, the common electrodes of the sub-pixels in the pixel unit may be driven by the same driving voltage, and the high and low voltage sub-pixels may be driven by different driving methods, thereby solving the color shift of the viewing angle, and performing corresponding driving through the common electrodes, thereby reducing the work of the driving chip, reducing the power consumption and the temperature increase risk of the driving chip, and not requiring doubling the metal wiring and the driving device to drive the sub-pixels, thereby achieving the purpose of saving the cost.

Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where a driver of a display panel is stored on the computer-readable storage medium, and when executed by a processor, the driver of the display panel implements the following operations:

Further, the driver of the display panel when executed by the processor further implements the following operations:

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a device, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The driving method of the display panel is characterized in that the display panel comprises a display array, the display array comprises pixel units which are arranged in an array mode, each pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel in the row direction, and three sub-pixels of each pixel unit are aligned on a column according to the arrangement sequence; the driving method includes:

when the current time sequence is switched from the first preset time sequence to a second preset time sequence, carrying out positive polarity driving on the high-voltage negative sub-pixels and the low-voltage positive sub-pixels of the first row of pixel units and the second row of pixel units by adopting a positive polarity common electrode voltage of a first preset voltage, and carrying out negative polarity driving on the high-voltage positive sub-pixels and the low-voltage negative sub-pixels of the second row of pixel units and the third row of pixel units by adopting a negative polarity common electrode voltage of a second preset voltage;

when receiving a data driving signal input by the data driving circuit and performing timing inversion, before periodically inverting the first preset voltage and the second preset voltage, the driving method of the display panel further includes:

2. The method for driving a display panel according to claim 1, wherein after selecting any two adjacent pixel units in the column direction and obtaining the voltage states of the first adjacent sub-pixel unit and the second adjacent sub-pixel unit, the method for driving a display panel further comprises:

3. The method for driving a display panel according to claim 1 or 2, wherein after the first preset voltage and the second preset voltage are periodically inverted when receiving the data driving signal inputted from the data driving circuit for timing inversion, the method for driving a display panel further comprises:

4. The method according to claim 1, wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel are a red sub-pixel, a green sub-pixel, and a blue sub-pixel in this order, and the red sub-pixel, the green sub-pixel, and the blue sub-pixel are heteropolar sub-pixels.

5. A driving method of a display panel comprises a display array, wherein the display array comprises pixel units which are arranged in an array mode, each pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel in the row direction, and the three sub-pixels of each pixel unit are aligned on columns according to the arrangement sequence; the driving method includes:

when the current time sequence is switched from the first preset time sequence to a second preset time sequence, carrying out positive polarity driving on the high-voltage negative sub-pixels and the low-voltage positive sub-pixels of the first row of pixel units and the second row of pixel units by adopting a positive polarity common electrode voltage of a first preset voltage, and carrying out negative polarity driving on the high-voltage positive sub-pixels and the low-voltage negative sub-pixels of the second row of pixel units and the third row of pixel units by adopting a negative polarity common electrode voltage of a second preset voltage, wherein the inverted first preset voltage is larger than the original common electrode voltage, and the inverted second preset voltage is smaller than the original common electrode voltage;

6. A driving apparatus of a display panel, the display panel comprising: the display device comprises a display array, a first light source and a second light source, wherein the display array comprises pixel units which are arranged in an array mode and are alternately arranged by a first pixel unit and a second pixel unit; the driving device of the display panel includes: the display device comprises a display array, a pixel unit and a control unit, wherein the display array comprises pixel units which are arranged in an array mode, the pixel units comprise first sub-pixels, second sub-pixels and third sub-pixels in the row direction, and the three sub-pixels of each pixel unit are aligned on a column according to the arrangement sequence;

the driving device of the display panel includes:

the common electrode driving module is further configured to drive the high-voltage sub-pixels in the pixel units with negative polarity and drive the low-voltage sub-pixels in the pixel units with positive polarity when the inverted preset voltage is a positive polarity driving voltage, and the inverted preset voltage is greater than the reference voltage;

the common electrode driving module is further configured to perform negative polarity driving on the high-voltage positive sub-pixels and the low-voltage negative sub-pixels in the first row of pixel units and the second row of pixel units by using a negative common electrode voltage of a first preset voltage when the current time sequence is a first preset time sequence, and perform positive polarity driving on the high-voltage negative sub-pixels and the low-voltage positive sub-pixels in the second row of pixel units and the third row of pixel units by using a positive common electrode voltage of a second preset voltage, where the first preset voltage is smaller than an original common electrode voltage, and the second preset voltage is larger than the original common electrode voltage;

the inversion module is further configured to periodically invert the first preset voltage and the second preset voltage when receiving a data driving signal input by a data driving circuit and performing timing inversion;

the common electrode driving module is further configured to perform positive polarity driving on the high-voltage negative sub-pixels and the low-voltage positive sub-pixels of the first row of pixel units and the second row of pixel units by using a positive polarity common electrode voltage of a first preset voltage when the current time sequence is switched from the first preset time sequence to a second preset time sequence, and perform negative polarity driving on the high-voltage positive sub-pixels and the low-voltage negative sub-pixels of the second row of pixel units and the third row of pixel units by using a negative polarity common electrode voltage of a second preset voltage;

the common electrode driving module is further used for selecting any two adjacent pixel units in the column direction and acquiring the voltage states of the first adjacent sub-pixel unit and the second adjacent sub-pixel unit; when the voltage state of the first adjacent sub-pixel unit is low voltage and the voltage state of the second adjacent sub-pixel unit is high voltage, driving a second sub-pixel in the first adjacent sub-pixel unit by adopting a positive polarity driving signal, and driving a second sub-pixel in the second adjacent sub-pixel unit by adopting a negative polarity driving signal; and when the voltage state of the first adjacent sub-pixel unit is high voltage and the voltage state of the second adjacent sub-pixel unit is low voltage, driving a second sub-pixel in the first adjacent sub-pixel unit by adopting a negative polarity driving signal, and driving a second sub-pixel in the second adjacent sub-pixel unit by adopting a positive polarity driving signal.

7. A display device, characterized in that the display device comprises: the display panel comprises a display array, the display array comprises pixel units which are arranged in an array, each pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel in the row direction, and the three sub-pixels of each pixel unit are aligned on a column according to the arrangement sequence; the driver of the display panel is configured to implement the steps of the driving method of the display panel according to any one of claims 1 to 5.

8. A storage medium having a driver of a display panel stored thereon, the driver of the display panel implementing the steps of the driving method of the display panel according to any one of claims 1 to 5 when executed by a processor.