CN113889047A

CN113889047A - Driving method of liquid crystal display panel, display device and electronic equipment

Info

Publication number: CN113889047A
Application number: CN202110574045.XA
Authority: CN
Inventors: 杨东; 周楠; 潘子昂; 董帅帅; 王硕强
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2022-01-04
Anticipated expiration: 2041-05-25
Also published as: CN113889047B

Abstract

A liquid crystal display panel comprises a display array, wherein the display array comprises a plurality of pixel groups which are arranged in an array mode, and the first pixel groups are sequentially arranged in the row direction to form a first pixel row; the plurality of second pixel groups are sequentially arranged in the row direction to form a second pixel row; the first pixel rows and the second pixel rows are alternately arranged in the column direction; the first pixel group comprises a first pixel unit and a second pixel unit which are sequentially arranged in the row direction; the second pixel group comprises a second pixel unit and a first pixel unit which are sequentially arranged in the row direction; the first pixel units and the second pixel units are alternately arranged in the column direction; the first pixel unit comprises a blue sub-pixel; the driving method comprises the following steps: driving the blue sub-pixels of the adjacent pixel groups in the row by adopting driving signals with opposite polarities; and driving the blue sub-pixels of the column adjacent pixel group by adopting driving signals with opposite polarities.

Description

Driving method of liquid crystal display panel, display device and electronic equipment

Technical Field

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

Background

With the development of display technology, Liquid Crystal Display (LCD) panels and Organic Light Emitting Diode (OLED) display panels gradually become two major display panels in the display field, and LCD panels and OLED display panels are widely used in devices or scenes that can integrate display functions and are known to those skilled in the art, such as computers, mobile phones, wearable devices, and vehicles. The LCD panel applies an electric field to the liquid crystal layer between the two substrates to change the orientation of liquid crystal molecules in the liquid crystal layer, so that the modulation of light rays incident to the liquid crystal layer is realized, and the LCD panel displays a picture to be displayed.

In order to improve the aging of liquid crystal molecules and prolong the service life of the LCD panel, the LCD panel is driven in a polarity inversion mode. The polarity inversion method may include row inversion, column inversion, dot inversion, etc.; the row inversion is with the phase of the drive signals applied to the pixel rows, the column inversion is with the phase of the drive signals applied to the pixel columns, and the dot inversion is with the phase of the drive signals applied to the pixel rows and the pixel columns. However, when the LCD panel is driven by column inversion, there is a horizontal disturbance phenomenon, which results in poor display effect of the LCD panel.

Disclosure of Invention

The application provides a driving method of a liquid crystal display panel, a display device and an electronic device, which can improve horizontal disturbance and vertical disturbance phenomena of the liquid crystal display panel.

In a first aspect, the present application provides a driving method for a liquid crystal display panel, where the liquid crystal display panel includes a display array, the display array includes a plurality of pixel groups arranged in an array, and the pixel groups include a first pixel group and a second pixel group;

the first pixel groups are sequentially arranged in the row direction to form a first pixel row;

the second pixel groups are sequentially arranged in the row direction to form a second pixel row;

the first pixel rows and the second pixel rows are alternately arranged in the column direction;

the first pixel group comprises a first pixel unit and a second pixel unit which are sequentially arranged in the row direction;

the second pixel group comprises a second pixel unit and a first pixel unit which are sequentially arranged in the row direction;

the first pixel units and the second pixel units are alternately arranged in the column direction;

the first pixel unit comprises a blue sub-pixel;

the driving method includes:

driving blue sub-pixels of adjacent pixel groups in a row by adopting driving signals with opposite polarities, wherein the adjacent pixel groups in the row are any two adjacent pixel groups in the row direction;

and driving the blue sub-pixels of the column adjacent pixel groups by adopting driving signals with opposite polarities, wherein the column adjacent pixel groups are any two adjacent pixel groups in the column direction.

By adopting the driving method, the polarity of the driving signal of the blue sub-pixel of the adjacent pixel group in the row is changed to the opposite direction, so that the disturbance of the polarity change of the driving signal of the blue sub-pixel to the common electrode signal in the row direction is not completely in the same direction (positive direction and negative direction exist), the disturbance in different directions can be weakened or even cancelled, the horizontal disturbance phenomenon of the liquid crystal display panel is improved, the display stability of the liquid crystal display panel is improved, and the liquid crystal display panel is ensured to have better display effect.

By adopting the driving method, the polarity of the driving signal of the blue sub-pixel of the column adjacent pixel group can be changed to the opposite direction, so that the disturbance of the polarity change of the driving signal of the blue sub-pixel to the common electrode signal is not completely towards the same direction (positive direction and negative direction exist) in the column direction, the disturbance in different directions can be weakened or even cancelled, the vertical disturbance phenomenon of the liquid crystal display panel is improved, the display stability of the liquid crystal display panel is improved, and the liquid crystal display panel is ensured to have better display effect.

In one possible design, the first pixel unit further includes a red sub-pixel and a green sub-pixel, and the red sub-pixel, the green sub-pixel and the blue sub-pixel in the first pixel unit are sequentially arranged in a row direction;

the second pixel unit comprises a red sub-pixel, a green sub-pixel and a white sub-pixel which are sequentially arranged in the row direction;

the driving method further includes:

driving the red sub-pixels of the same pixel group by adopting driving signals with opposite polarities;

driving the red sub-pixel of the first pixel unit of the row adjacent pixel group by adopting driving signals with opposite polarities;

driving the red sub-pixel of the second pixel unit of the row adjacent pixel group by adopting driving signals with opposite polarities;

driving green sub-pixels of the same pixel group by adopting driving signals with opposite polarities;

driving green sub-pixels of a first pixel unit of a row adjacent pixel group by adopting driving signals with opposite polarities;

driving green sub-pixels of second pixel units of the adjacent pixel groups in the row by adopting driving signals with opposite polarities;

driving the white sub-pixels of the adjacent pixel groups in the row by adopting driving signals with opposite polarities;

and driving the white sub-pixels of the column adjacent pixel group by adopting driving signals with opposite polarities.

By the scheme provided by this embodiment, the disturbance of the polarity change of the driving signal of the blue subpixel to the common electrode signal is not all in the same direction, so that the polarity of the driving signal of the red subpixel in the adjacent pixel group in the row is changed in the opposite direction, so that the disturbance of the polarity change of the driving signal of the red subpixel to the common electrode signal is not all in the same direction in the row direction, so that the polarity of the driving signal of the green subpixel to the common electrode signal is changed in the opposite direction in the row direction, so that the disturbance of the polarity change of the driving signal of the green subpixel to the common electrode signal is not all in the same direction in the row direction, so that the polarity change of the driving signal of the white subpixel to the common electrode signal in the adjacent pixel group in the row direction is not all in the same direction, therefore, the disturbances in different directions are offset, the horizontal disturbance phenomenon of the liquid crystal display panel is improved, the display stability of the liquid crystal display panel is improved, and the liquid crystal display panel is ensured to have a better display effect.

In one possible design, the first pixel unit further includes a red sub-pixel and a green sub-pixel, and the blue sub-pixel, the green sub-pixel and the red sub-pixel in the first pixel unit are sequentially arranged in a row direction;

the second pixel unit comprises a white sub-pixel, a green sub-pixel and a red sub-pixel which are sequentially arranged in the row direction;

the driving method further includes:

In one possible design, the driving method further includes:

sequentially driving the red sub-pixel, the green sub-pixel and the blue sub-pixel of the first pixel unit;

and sequentially driving the red sub-pixel, the green sub-pixel and the white sub-pixel of the second pixel unit.

In a second aspect, the present application provides a display device comprising:

the display device comprises a display array, a display unit and a control unit, wherein the display array comprises a plurality of pixel groups which are arranged in an array, and each pixel group comprises a first pixel group and a second pixel group;

the first pixel unit comprises a blue sub-pixel;

the display device further includes:

a driving module, configured to output a driving signal to enable the display array to display an image, wherein the driving module is specifically configured to:

In one possible design, the first pixel unit further includes a red sub-pixel and a green sub-pixel, and the red sub-pixel, the green sub-pixel and the blue sub-pixel in the first pixel unit are sequentially arranged in a row direction; the second pixel unit comprises a red sub-pixel, a green sub-pixel and a white sub-pixel which are sequentially arranged in the row direction;

the drive module is further configured to:

In one possible design, the first pixel unit further includes a red sub-pixel and a green sub-pixel, and the blue sub-pixel, the green sub-pixel and the red sub-pixel in the first pixel unit are sequentially arranged in a row direction; the second pixel unit comprises a white sub-pixel, a green sub-pixel and a red sub-pixel which are sequentially arranged in the row direction;

the drive module is further configured to:

In one possible design, the drive module is further configured to:

In a possible design, the pixel driving circuit further comprises a multi-path selection circuit, the multi-path selection circuit comprises an input end and three output ends, the input end is electrically connected with the driving signal interface of the driving module, and the output ends are electrically connected with the corresponding pixel columns through data lines.

In a third aspect, the present application provides an electronic device comprising the display device according to the second aspect.

Drawings

Fig. 1 is a schematic diagram of pixel arrangement and driving polarity of a liquid crystal display panel provided in the prior art;

FIG. 2 is a schematic diagram showing the polarity distribution of the blue sub-pixel in the LCD panel shown in FIG. 1;

FIG. 3 is a signal diagram illustrating a horizontal disturbance phenomenon in a driving method provided by the prior art;

FIG. 4 is a schematic diagram of the display brightness of a liquid crystal display panel provided in the prior art;

fig. 5 is a schematic diagram of pixel arrangement and driving polarity of an lcd panel according to an embodiment of the present disclosure;

fig. 6 is a schematic view of pixel arrangement and driving polarity of a liquid crystal display panel according to another embodiment of the present application;

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

FIG. 8 is a schematic diagram showing the polarity distribution of the blue sub-pixel in the LCD panel shown in FIG. 5 or FIG. 6;

fig. 9 is a schematic view illustrating a display brightness of a liquid crystal display panel according to an embodiment of the present application;

fig. 10 is a flowchart of a driving method of a liquid crystal display panel according to another embodiment of the present application;

fig. 11 is a signal diagram illustrating a driving method of a liquid crystal display panel according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Fig. 1 shows a schematic diagram of pixel arrangement and driving polarity of a liquid crystal display panel provided in the prior art. Referring to fig. 1, the lcd panel includes a display array including a plurality of pixel groups arranged in an array, where the pixel groups include a first pixel group 10 and a second pixel group 20. The plurality of first pixel groups 10 are sequentially arranged in the row direction to form a first pixel row. The plurality of second pixel groups 20 are sequentially arranged in the row direction to form a second pixel row. The first pixel rows and the second pixel rows are alternately arranged in the column direction. The first pixel group 10 includes a first pixel unit 101 and a second pixel unit 102 sequentially arranged in a row direction, and the second pixel group 20 includes a second pixel unit 102 and a first pixel unit 101 sequentially arranged in a row direction. The first pixel units 101 and the second pixel units 102 are alternately arranged in the column direction. In fig. 1, the first pixel unit 101 includes a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B sequentially arranged in a row direction, and the second pixel unit 102 includes a red sub-pixel R, a green sub-pixel G, and a white sub-pixel W sequentially arranged in a row direction.

The liquid crystal display panel is driven by adopting a column inversion driving mode, so that the service life of the liquid crystal display panel can be prolonged while the picture display is realized. However, based on the above-mentioned sub-pixel arrangement and the column inversion driving method, the blue sub-pixel B and the white sub-pixel W in the same column share the same data line D1, and fig. 1 exemplarily shows 4 data lines connected to the white sub-pixel W and the blue sub-pixel B, which are respectively shown as D01, D02, D03 and D04.

Since the polarities of the blue sub-pixels B in the same row are the same and the polarities of the blue sub-pixels B in two adjacent rows are opposite, as shown in fig. 2, when the driving signals of the adjacent rows are switched, the coupling potential of the common electrode signal caused by the change of the driving signals cannot be eliminated, thereby causing a horizontal crosstalk (disturbance) problem. The reason for the horizontal disturbance is exemplified below with reference to the driving timing shown in fig. 3.

Referring to fig. 3, CKV represents a gate turn-on signal of the current row of sub-pixels, which allows the current row of sub-pixels to write a driving signal during an enable level (e.g., high level) period; CKH1, CKH2 and CKH3 respectively represent driving selection signals of a red sub-pixel R, a green sub-pixel G and a blue sub-pixel B (including a white sub-pixel W in the same column), which allow corresponding driving signals to be gate-loaded to a corresponding data line D1 during an enable level (for example, a high level) period; vdata is a driving signal applied to the blue subpixel B, and Vcom represents a common electrode signal of the blue subpixel B.

Therefore, in the prior art, since the polarities of the blue sub-pixels B in the same row are the same, the disturbance tendency of the common electrode signal caused by the change of the driving signal is the same, and the disturbance is large.

Before the liquid crystal display panel is produced, a plurality of tests, such as a stability test, a special screen display effect test, etc., are usually performed. The special picture display effect test of the liquid crystal display panel may include testing the display effect of the pure blue picture of the region QZ1 shown in fig. 4. The liquid crystal display panel includes a region QZ1 and an edge region surrounding the region QZ1, where the edge region is a region QZ2, a region QZ3, a region QZ4, and a region QZ 5. When the display effect test of the pure blue picture of the area QZ1 is performed, only the blue sub-pixels B in the area QZ1 are lighted, and each edge area display is displayed with the same brightness value (gray scale value), so as to determine whether the liquid crystal display panel has the horizontal crosstalk problem under the set driving time sequence.

Due to the above-mentioned problem of horizontal crosstalk, the display luminance of the edge regions on the left and right sides of the region QZ1 (the regions QZ2 and QZ3 in fig. 4) is higher than the display luminance of the edge regions on the upper and lower sides of the region QZ1 (the regions QZ4 and QZ5 in fig. 4), which is reflected in the horizontal crosstalk phenomenon, for example, the display luminance of the regions QZ2 and QZ3 is higher than Gray127, and the display luminance of the regions QZ4 and QZ5 is Gray 127.

In view of the above horizontal crosstalk problem, embodiments of the present application provide a method for driving a liquid crystal display panel. The liquid crystal display panel includes a display array. In the following embodiments, the subpixel structures are all represented by simplified boxes, where necessary labeled with the type of subpixel it drives the display and the polarity of its drive signal. The driving method is used for driving a display array.

The display array includes a plurality of pixel groups arranged in an array, and the pixel groups include a first pixel group 50 and a second pixel group 60. The plurality of first pixel groups 50 are sequentially arranged in the row direction to form a first pixel row. The plurality of second pixel groups 60 are sequentially arranged in the row direction to form a second pixel row. The first pixel rows and the second pixel rows are alternately arranged in the column direction. As shown in fig. 5 and 6, the first pixel row is an odd-numbered row such as row 1, row 3, … …, etc., and the second pixel row is an even-numbered row such as row 2, row 4, … …, etc. Of course, in other embodiments, the first pixel row may be even rows such as the 2 nd row, the 4 th row … …, etc., and the second pixel row may be odd rows such as the 1 st row, the 3 rd row … …, etc.

The first pixel group 50 includes a first pixel unit 51 and a second pixel unit 52 arranged in sequence in a row direction. The second pixel group 60 includes a second pixel unit 52 and a first pixel unit 51 sequentially arranged in the row direction. The first pixel cells 51 and the second pixel cells 52 are alternately arranged in the column direction. The first pixel unit 51 includes a blue subpixel B.

Referring to fig. 7, the driving method includes the following steps S110 to S120.

Step S110, driving the blue sub-pixel B of the row-adjacent pixel group by using driving signals with opposite polarities, where the row-adjacent pixel group is any two adjacent pixel groups in the row direction.

Illustratively, for the odd-numbered rows, the row-adjacent pixel groups are two first pixel groups 50 arbitrarily adjacent to each other on the odd-numbered rows, and the blue sub-pixels B of the two first pixel groups 50 arbitrarily adjacent to each other on the odd-numbered rows are driven by driving signals with opposite polarities, as shown in fig. 5 and 6, and the blue sub-pixels B of the two first pixel groups 50 arbitrarily adjacent to each other in the row direction are driven by driving signals with opposite polarities.

Illustratively, for even rows, the row-adjacent pixel group is two second pixel groups 60 arbitrarily adjacent to each other on the even rows, and the blue sub-pixels B of the two second pixel groups 60 arbitrarily adjacent to each other on the even rows are driven by driving signals with opposite polarities, as shown in fig. 5 and 6, and the blue sub-pixels B of the two second pixel groups 60 arbitrarily adjacent to each other in the row direction are driven by driving signals with opposite polarities.

The driving signals with opposite polarities mean that the driving signals of the blue sub-pixels B of the row-adjacent pixel group are positive polarity driving signals and negative polarity driving signals, or negative polarity driving signals and positive polarity driving signals, respectively.

Illustratively, the polarity of the driving signal for the blue subpixel B is shown in fig. 8.

By adopting the driving method, the polarity of the driving signal of the blue sub-pixel B of the adjacent pixel group in the row is changed to the opposite direction, so that the disturbance of the polarity change of the driving signal of the blue sub-pixel B to the common electrode signal in the row direction is not all in the same direction (positive direction and negative direction exist), the disturbance in different directions can be weakened or even cancelled, the horizontal disturbance phenomenon of the liquid crystal display panel is improved, the display stability of the liquid crystal display panel is improved, and the liquid crystal display panel is ensured to have better display effect.

Step S120, driving the blue sub-pixel B of the column-adjacent pixel group by using driving signals with opposite polarities, where the column-adjacent pixel group is any two adjacent pixel groups in the column direction.

The column adjacent pixel group is the first pixel group 50 and the second pixel group 60 which are arbitrarily adjacent in the column direction, the blue sub-pixels B of the first pixel group 50 and the second pixel group 60 which are arbitrarily adjacent in the column direction are driven by the driving signals with opposite polarities, as shown in fig. 5 and 6, the blue sub-pixel B of one of the first pixel groups 50 is driven by the driving signal with positive polarity, and the blue sub-pixel B of the second pixel group 60 which is adjacent to the first pixel group 50 and is located in the same column is driven by the driving signal with negative polarity; alternatively, the blue sub-pixels B of one of the first pixel groups 50 are driven by a negative polarity driving signal, and the blue sub-pixels B of the second pixel group 60 adjacent to the first pixel group 50 and located in the same column are driven by a positive polarity driving signal.

By adopting the driving method, the polarity of the driving signal of the blue sub-pixel B of the column adjacent pixel group can be changed to the opposite direction, so that the disturbance of the polarity change of the driving signal of the blue sub-pixel B to the common electrode signal is not all in the same direction (positive direction and negative direction exist) in the column direction, the disturbance in different directions can be weakened or even cancelled, the vertical disturbance phenomenon of the liquid crystal display panel is improved, the display stability of the liquid crystal display panel is improved, and the liquid crystal display panel is ensured to have better display effect.

As shown in fig. 9, when the display effect test of the pure blue screen of the region QZ1 is performed, only the blue sub-pixels B of the region QZ1 are lit up, the display of each edge region is performed at the same luminance value (gray scale value), the display luminance of the edge regions on the left and right sides of the region QZ1 (the regions QZ2 and QZ3 in fig. 9) is the same as the display luminance of the edge regions on the upper and lower sides of the region QZ1 (the regions QZ4 and QZ5 in fig. 9), and the horizontal disturbance and the vertical disturbance of the liquid crystal display panel are improved.

The blue sub-pixels B of the row adjacent pixel groups are driven by the driving signals with opposite polarities, and the blue sub-pixels B of the column adjacent pixel groups are driven by the driving signals with opposite polarities.

Referring to fig. 5, in one embodiment, the first pixel unit 51 further includes a red sub-pixel R and a green sub-pixel G, and the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B in the first pixel unit 51 are sequentially arranged in the row direction. The second pixel unit 52 includes a red subpixel R, a green subpixel G, and a white subpixel W sequentially arranged in a row direction. Referring to fig. 10, the driving method further includes steps S210 to S280.

In step S210, the red sub-pixels R of the same pixel group are driven by the driving signals with opposite polarities.

In step S220, the red sub-pixel R of the first pixel unit 51 of the row-adjacent pixel group is driven by the driving signal with opposite polarity.

In step S230, the red sub-pixel R of the second pixel unit 52 of the row-adjacent pixel group is driven by the driving signal with opposite polarity.

As shown in fig. 5, the red subpixel R in the 1 st row and the 1 st column is driven by a positive polarity driving signal, the red subpixel R in the 1 st row and the 4 th column is driven by a negative polarity driving signal, the red subpixel R in the 1 st row and the 1 st column is the red subpixel R of the first pixel unit 51 of the 1 st first pixel group 50 in the 1 st row, the red subpixel R in the 1 st row and the 4 th column is the red subpixel R of the second pixel unit 52 of the 1 st first pixel group 50 in the 1 st row, and the red subpixel R in the 1 st row and the 1 st column and the red subpixel R in the 1 st row and the 4 th column both belong to the red subpixel R of the 1 st first pixel group 50 in the 1 st row.

The red sub-pixels R in the 1 st row and the 7 th column are driven by a negative polarity driving signal, the red sub-pixels R in the 1 st row and the 7 th column are the red sub-pixels R of the first pixel unit 51 of the 2 nd first pixel group 50 in the 1 st row, the 1 st first pixel group 50 in the 1 st row and the 2 nd first pixel group 50 in the 1 st row are row adjacent pixel groups, and the red sub-pixels R in the 1 st row and the 1 st column and the red sub-pixels R in the 1 st row and the 7 th column are the red sub-pixels R of the first pixel unit 51 of the row adjacent pixel group.

The red sub-pixel R in the 1 st row and the 10 th column is driven by a driving signal with positive polarity, the red sub-pixel R in the 1 st row and the 10 th column is the red sub-pixel R of the second pixel unit 52 of the 2 nd first pixel group 50 in the 1 st row, and the red sub-pixel R in the 1 st row and the 4 th column and the red sub-pixel R in the 1 st row and the 10 th column are the red sub-pixel R of the second pixel unit 52 of the row adjacent pixel group.

The red subpixel R in the 2 nd row and 1 st column is driven by a positive driving signal, the red subpixel R in the 2 nd row and 4 th column is driven by a negative driving signal, the red subpixel R in the 2 nd row and 7 th column is driven by a negative driving signal, and the red subpixel R in the 2 nd row and 10 th column is driven by a positive driving signal, that is, the polarities of the driving signals of the red subpixels R of the adjacent first pixel unit 51 and the red subpixel R of the second pixel unit 52 are the same in the column direction.

In step S240, the green sub-pixel G of the same pixel group is driven by the driving signal with the opposite polarity.

In step S250, the green sub-pixel G of the first pixel unit 51 of the row-adjacent pixel group is driven by the driving signal with the opposite polarity.

In step S260, the green sub-pixel G of the second pixel unit 52 of the row-adjacent pixel group is driven by the driving signal with the opposite polarity.

As shown in fig. 5, the green sub-pixel G in the 1 st row and the 2 nd column is driven by a negative polarity driving signal, the green sub-pixel G in the 1 st row and the 5 th column is driven by a positive polarity driving signal, the green sub-pixel G in the 1 st row and the 2 nd column is the green sub-pixel G of the first pixel unit 51 of the 1 st first pixel group 50 in the 1 st row, the green sub-pixel G in the 1 st row and the 5 th column is the green sub-pixel G of the second pixel unit 52 of the 1 st first pixel group 50 in the 1 st row, and the green sub-pixel G in the 1 st row and the 2 nd column and the green sub-pixel G in the 1 st row and the 5 th column both belong to the green sub-pixel G of the 1 st first pixel group 50 in the 1 st row.

The green sub-pixels G in the 1 st row and the 8 th column are driven by a positive polarity driving signal, the green sub-pixels G in the 1 st row and the 8 th column are the green sub-pixels G of the first pixel unit 51 of the 2 nd first pixel group 50 in the 1 st row, the 1 st first pixel group 50 in the 1 st row and the 2 nd first pixel group 50 in the 1 st row are row-adjacent pixel groups, and the green sub-pixels G in the 1 st row and the 2 nd column and the green sub-pixels G in the 1 st row and the 8 th column are the green sub-pixels G of the first pixel unit 51 of the row-adjacent pixel group.

The green sub-pixels G in the 1 st row and the 11 th column are driven by a negative polarity driving signal, the green sub-pixels G in the 1 st row and the 11 th column are the green sub-pixels G of the second pixel unit 52 of the 2 nd first pixel group 50 in the 1 st row, and the green sub-pixels G in the 1 st row and the 5 th column and the green sub-pixels G in the 1 st row and the 11 th column are the green sub-pixels G of the second pixel unit 52 of the row adjacent pixel group.

The green sub-pixel G in the 2 nd row and the 2 nd column is driven by a driving signal with negative polarity, the green sub-pixel G in the 2 nd row and the 5 nd column is driven by a driving signal with positive polarity, the green sub-pixel G in the 2 nd row and the 8 th column is driven by a driving signal with positive polarity, and the green sub-pixel G in the 2 nd row and the 11 th column is driven by a driving signal with negative polarity, that is, the polarities of the driving signals of the green sub-pixel G of the first pixel unit 51 and the green sub-pixel G of the second pixel unit 52 which are adjacent to each other in the column direction are the same.

In step S270, the white sub-pixel W of the row-adjacent pixel group is driven by the driving signal with the opposite polarity.

In step S280, the white subpixel W in the column-adjacent pixel group is driven by a driving signal having an opposite polarity.

As shown in fig. 5, the white subpixels W of two first pixel groups 50 adjacent to each other in the row direction are driven by driving signals with opposite polarities, and the white subpixels W of two second pixel groups 60 adjacent to each other in the row direction are driven by driving signals with opposite polarities.

Driving the white sub-pixel W of one of the first pixel groups 50 by a positive driving signal, and driving the white sub-pixel W of the second pixel group 60 adjacent to the first pixel group 50 in the same column by a negative driving signal; alternatively, the white sub-pixel W of one of the first pixel groups 50 is driven by a negative polarity driving signal, and the white sub-pixel W of the second pixel group 60 adjacent to the first pixel group 50 and located in the same column is driven by a positive polarity driving signal.

The above driving method further includes: sequentially driving the red, green and blue sub-pixels R, G and B in the first pixel unit 51; the red, green and white sub-pixels R, G and W of the second pixel unit 52 are sequentially driven.

As shown in fig. 11, CKV in fig. 11 represents a gate-on signal of the sub-pixels in the current row, which enables the sub-pixels in the current row to write the driving signal during the period of the enable level (e.g. high level). CKH1, CKH2, and CKH3 respectively represent driving selection signals of a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B (including a white sub-pixel W in the same column), which allow corresponding driving signals to be gate-loaded to corresponding data lines in an enable level (taking a high level as an example) period, in fig. 5, a driving selection terminal ASW1 is used to output a driving signal to the red sub-pixel R, a driving selection terminal ASW2 is used to output a driving signal to the green sub-pixel G, a driving selection terminal ASW1 is used to output a driving signal to the blue sub-pixel B and the white sub-pixel W in the same column, each column of pixels is electrically connected to a corresponding driving selection terminal through a corresponding one of the data lines, and a corresponding driving signal can be gate-loaded to a corresponding column of the pixels through the driving selection signal. Vdata is a driving signal applied to the blue sub-pixel B and the white sub-pixel W in the same column, Vcom represents a common electrode signal of the blue sub-pixel B, the blue sub-pixel B of the row adjacent pixel group is driven by a driving signal with opposite polarity, and the blue sub-pixel B of the column adjacent pixel group is driven by a driving signal with opposite polarity, so that the disturbance of the common electrode signal Vcom caused by the polarity change of the driving signal of the blue sub-pixel B is not in the same direction, the disturbance in different directions are cancelled, the horizontal disturbance and the vertical disturbance of the liquid crystal display panel are improved, the display stability of the liquid crystal display panel is improved, and the liquid crystal display panel is ensured to have better display effect.

By adopting the driving method, the polarity of the driving signal of the red sub-pixel R of the adjacent pixel group in the row is changed towards the opposite direction, so that the disturbance of the polarity change of the driving signal of the red sub-pixel R to the common electrode signal in the row direction is not in the same direction, the disturbance in different directions can be weakened or even cancelled, the horizontal disturbance phenomenon of the liquid crystal display panel is improved, the display stability of the liquid crystal display panel is improved, and the liquid crystal display panel is ensured to have better display effect.

By adopting the driving method, the polarity of the driving signal of the green sub-pixel G of the adjacent pixel group in the row is changed towards the opposite direction, so that the disturbance of the polarity change of the driving signal of the green sub-pixel G to the common electrode signal is not in the same direction in the row direction, the disturbance in different directions can be weakened or even cancelled, the horizontal disturbance phenomenon of the liquid crystal display panel is improved, the display stability of the liquid crystal display panel is improved, and the liquid crystal display panel is ensured to have better display effect.

The white sub-pixels W of the adjacent pixel groups in the row are driven by the driving signals with opposite polarities, so that the polarities of the driving signals of the white sub-pixels W of the adjacent pixel groups in the row are changed towards opposite directions, the disturbance of the public electrode signals caused by the polarity change of the driving signals of the white sub-pixels W in the row direction is not fully towards the same direction (positive direction and negative direction exist), the disturbances in different directions can be mutually weakened or even cancelled, the horizontal disturbance phenomenon of the liquid crystal display panel is improved, the display stability of the liquid crystal display panel is improved, and the liquid crystal display panel is ensured to have better display effect.

By adopting the driving method, the polarity of the driving signal of the white sub-pixel W of the adjacent pixel group in the column can be changed to the opposite direction, so that the disturbance of the polarity change of the driving signal of the white sub-pixel W to the common electrode signal in the column direction is not completely in the same direction (positive direction and negative direction exist), the disturbance in different directions can be weakened or even cancelled, the vertical disturbance phenomenon of the liquid crystal display panel is improved, the display stability of the liquid crystal display panel is improved, and the liquid crystal display panel is ensured to have better display effect.

Referring to fig. 6, in one embodiment, the first pixel unit 51 further includes a red sub-pixel R and a green sub-pixel G, and the blue sub-pixel B, the green sub-pixel G and the red sub-pixel R of the first pixel unit 51 are sequentially arranged in a row direction. The second pixel unit 52 includes a white subpixel W, a green subpixel G, and a red subpixel R sequentially arranged in a row direction. In this embodiment, the driving method including steps S210 to S280 described above is applied to the blue sub-pixel B, the green sub-pixel G, and the red sub-pixel R in the first pixel unit 51 and to the white sub-pixel W, the green sub-pixel G, and the red sub-pixel R in the second pixel unit 52.

As shown in fig. 6, the red subpixel R in the 1 st row and the 3 rd column is driven by a driving signal with positive polarity, the red subpixel R in the 1 st row and the 6 th column is driven by a driving signal with negative polarity, the red subpixel R in the 1 st row and the 3 rd column is the red subpixel R of the first pixel unit 51 of the 1 st first pixel group 50 in the 1 st row, the red subpixel R in the 1 st row and the 6 th column is the red subpixel R of the second pixel unit 52 of the 1 st first pixel group 50 in the 1 st row, and the red subpixel R in the 1 st row and the 3 rd column and the red subpixel R in the 1 st row and the 6 th column both belong to the red subpixel R of the 1 st first pixel group 50 in the 1 st row.

The red sub-pixel R in the 1 st row and the 9 th column is driven by a negative polarity driving signal, the red sub-pixel R in the 1 st row and the 9 th column is the red sub-pixel R of the first pixel unit 51 of the 2 nd first pixel group 50 in the 1 st row, the 1 st first pixel group 50 in the 1 st row and the 2 nd first pixel group 50 in the 1 st row are row adjacent pixel groups, and the red sub-pixel R in the 1 st row and the 3 rd column and the red sub-pixel R in the 1 st row and the 9 th column are the red sub-pixel R of the first pixel unit 51 of the row adjacent pixel group.

The red sub-pixel R in the 1 st row and the 12 th column is driven by a driving signal with positive polarity, the red sub-pixel R in the 1 st row and the 12 th column is the red sub-pixel R of the second pixel unit 52 of the 2 nd first pixel group 50 in the 1 st row, and the red sub-pixel R in the 1 st row and the 6 th column and the red sub-pixel R in the 1 st row and the 12 th column are the red sub-pixel R of the second pixel unit 52 of the row adjacent pixel group.

The red subpixel R in the 2 nd row and 3 rd column is driven by a positive driving signal, the red subpixel R in the 2 nd row and 6 th column is driven by a negative driving signal, the red subpixel R in the 2 nd row and 9 th column is driven by a negative driving signal, and the red subpixel R in the 2 nd row and 12 th column is driven by a positive driving signal, that is, the polarities of the driving signals of the red subpixels R of the adjacent first pixel unit 51 and the red subpixel R of the second pixel unit 52 are the same in the column direction.

As shown in fig. 6, the green sub-pixel G in the 1 st row and the 2 nd column is driven by a negative polarity driving signal, the green sub-pixel G in the 1 st row and the 5 th column is driven by a positive polarity driving signal, the green sub-pixel G in the 1 st row and the 2 nd column is the green sub-pixel G of the first pixel unit 51 of the 1 st first pixel group 50 in the 1 st row, the green sub-pixel G in the 1 st row and the 5 th column is the green sub-pixel G of the second pixel unit 52 of the 1 st first pixel group 50 in the 1 st row, and the green sub-pixel G in the 1 st row and the 2 nd column and the green sub-pixel G in the 1 st row and the 5 th column both belong to the green sub-pixel G of the 1 st first pixel group 50 in the 1 st row.

As shown in fig. 6, the white subpixels W of two first pixel groups 50 adjacent to each other in the row direction are driven by driving signals with opposite polarities, and the white subpixels W of two second pixel groups 60 adjacent to each other in the row direction are driven by driving signals with opposite polarities.

By adopting the driving method, the disturbance of the polarity change of the driving signal of the blue sub-pixel B to the common electrode signal is not in the same direction, so that the disturbance in different directions is cancelled, the horizontal disturbance and the vertical disturbance of the liquid crystal display panel are improved, the display stability of the liquid crystal display panel is improved, and the liquid crystal display panel is ensured to have better display effect.

Referring to fig. 5 and fig. 6, an embodiment of the present invention further provides a display device, which includes a liquid crystal display panel and a driving module 70. The lcd panel includes a display array including a plurality of pixel groups arranged in an array, where the pixel groups include a first pixel group 50 and a second pixel group 60. The plurality of first pixel groups 50 are sequentially arranged in the row direction to form a first pixel row. The plurality of second pixel groups 60 are sequentially arranged in the row direction to form a second pixel row. The first pixel rows and the second pixel rows are alternately arranged in the column direction. The first pixel group 50 includes a first pixel unit 51 and a second pixel unit 52 arranged in sequence in a row direction. The second pixel group 60 includes a second pixel unit 52 and a first pixel unit 51 sequentially arranged in the row direction. The first pixel cells 51 and the second pixel cells 52 are alternately arranged in the column direction. The first pixel unit 51 includes a blue subpixel B.

The driving module 70 is used for outputting a driving signal to make the display array display an image. The driving module 70 is specifically configured to drive the blue sub-pixels B of the row-adjacent pixel groups with driving signals having opposite polarities, where the row-adjacent pixel groups are any two adjacent pixel groups in the row direction. And driving the blue sub-pixel B of the column adjacent pixel group by adopting driving signals with opposite polarities, wherein the column adjacent pixel group is any two adjacent pixel groups in the column direction.

Referring to fig. 5, in one embodiment, the first pixel unit 51 further includes a red sub-pixel R and a green sub-pixel G, and the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B in the first pixel unit 51 are sequentially arranged in the row direction. The second pixel unit 52 includes a red subpixel R, a green subpixel G, and a white subpixel W sequentially arranged in a row direction.

The drive module 70 is further configured to:

driving the red sub-pixel R of the same pixel group by adopting driving signals with opposite polarities;

driving the red sub-pixel R of the first pixel unit 51 of the row adjacent pixel group with the driving signals with opposite polarities;

driving the red sub-pixel R of the second pixel unit 52 of the row-adjacent pixel group with the driving signals with opposite polarities;

driving the green sub-pixel G of the same pixel group by adopting driving signals with opposite polarities;

driving the green sub-pixel G of the first pixel unit 51 of the row adjacent pixel group with driving signals of opposite polarity;

driving the green sub-pixel G of the second pixel unit 52 of the row adjacent pixel group with the driving signals with opposite polarities;

driving the white sub-pixel W of the adjacent pixel group in the row by adopting driving signals with opposite polarities;

the white sub-pixel W of the column adjacent pixel group is driven with drive signals of opposite polarity.

Referring to fig. 6, in one embodiment, the first pixel unit 51 further includes a red sub-pixel R and a green sub-pixel G, and the blue sub-pixel B, the green sub-pixel G and the red sub-pixel R of the first pixel unit 51 are sequentially arranged in a row direction. The second pixel unit 52 includes a white subpixel W, a green subpixel G, and a red subpixel R sequentially arranged in a row direction.

The drive module 70 is further configured to:

The drive module 70 is further configured to: sequentially driving the red, green and blue sub-pixels R, G and B of the first pixel unit 51; the red, green and white sub-pixels R, G and W of the second pixel unit 52 are sequentially driven.

The driving module 70 may include a plurality of data driving integrated circuits. The plurality of data driving integrated circuits may be connected to the bonding pads of the liquid crystal display panel by a Tape Automated Bonding (TAB) method or a chip-on-glass (COG) method, may be implemented as a chip-on-film (COF) type driving chip package connected to the liquid crystal display panel by a film-on-glass (FOG) method, or may be directly disposed on the liquid crystal display panel. In some cases, each of the plurality of data driving integrated circuits may be integrated with the liquid crystal display panel.

Referring to fig. 5 and 6, the display device may further include a plurality of selection circuits 80, and each of the plurality of selection circuits 80 includes an input terminal 801 and three output terminals 802. The multiplexing circuit 80 includes a plurality of selection circuit groups each including a first multiplexing circuit 81 and a second multiplexing circuit 82. The input terminal 801 of the first multiplexer circuit 81 and the input terminal 801 of the second multiplexer circuit 82 are electrically connected to the driving signal interface of the driving module 70, the output terminal 802 of the first multiplexer circuit 81 and the output terminal 802 of the second multiplexer circuit 82 are electrically connected to the corresponding driving selection terminal (ASW1, ASW2, ASW3), and the driving selection terminals ASW1, ASW2, ASW3 are electrically connected to the subpixels of the corresponding pixel column via data lines.

The multiplexer circuit 80 may also be referred to as a multiplexer, a data selector, a data selection circuit, or a Demux circuit. The multi-path selection circuit 80 can gate the data signal of the same input terminal 801 to three different output terminals 802 to apply the data signal to the pixel columns of the corresponding columns, so that the number of the connecting lines between the input terminal 801 and the driving signal interface can be reduced on the premise that the number of the pixel columns is not changed, the number of the routing lines of the frame of the liquid crystal display panel can be reduced, the wiring reserved space can be reduced, the narrower frame design can be realized, and the screen occupation ratio can be improved.

An embodiment of the present application further provides an electronic device, which includes the display device according to any of the above embodiments.

The electronic device may be a mobile phone, a tablet computer, a personal digital assistant, a vehicle-mounted computer, a notebook computer, a smart wearable device, or the like.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A driving method of a liquid crystal display panel comprises a display array, wherein the display array comprises a plurality of pixel groups which are arranged in an array mode, and each pixel group comprises a first pixel group and a second pixel group;

the first pixel unit comprises a blue sub-pixel;

characterized in that the driving method comprises:

2. The driving method according to claim 1, wherein the first pixel unit further includes a red sub-pixel and a green sub-pixel, and the red sub-pixel, the green sub-pixel and the blue sub-pixel in the first pixel unit are sequentially arranged in a row direction;

the driving method further includes:

3. The driving method according to claim 1, wherein the first pixel unit further comprises a red sub-pixel and a green sub-pixel, and the blue sub-pixel, the green sub-pixel and the red sub-pixel in the first pixel unit are sequentially arranged in a row direction;

the driving method further includes:

4. The driving method according to claim 2 or 3, characterized by further comprising:

5. A display device, comprising:

the first pixel unit comprises a blue sub-pixel;

characterized in that, the display device further comprises:

6. The display device according to claim 5, wherein the first pixel unit further comprises a red sub-pixel and a green sub-pixel, and the red sub-pixel, the green sub-pixel and the blue sub-pixel in the first pixel unit are sequentially arranged in a row direction; the second pixel unit comprises a red sub-pixel, a green sub-pixel and a white sub-pixel which are sequentially arranged in the row direction;

the drive module is further configured to:

7. The display device according to claim 5, wherein the first pixel unit further comprises a red sub-pixel and a green sub-pixel, and the blue sub-pixel, the green sub-pixel and the red sub-pixel in the first pixel unit are sequentially arranged in a row direction; the second pixel unit comprises a white sub-pixel, a green sub-pixel and a red sub-pixel which are sequentially arranged in the row direction;

the drive module is further configured to:

8. The display device of claim 6 or 7, wherein the driving module is further configured to:

9. The display device of claim 5, further comprising a multiplexing circuit, the multiplexing circuit comprising an input terminal and three output terminals, the input terminal being electrically connected to the driving signal interface of the driving module, and the output terminals being electrically connected to corresponding pixel columns through data lines.

10. An electronic device characterized by comprising the display device according to any one of claims 5 to 9.