CN109545161B - Method and device for improving vertical bright and dark lines of display panel - Google Patents
Method and device for improving vertical bright and dark lines of display panel Download PDFInfo
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- CN109545161B CN109545161B CN201811558721.9A CN201811558721A CN109545161B CN 109545161 B CN109545161 B CN 109545161B CN 201811558721 A CN201811558721 A CN 201811558721A CN 109545161 B CN109545161 B CN 109545161B
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
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- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
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Abstract
The application relates to a method and a device for improving vertical bright and dark lines of a display panel, wherein the device comprises the display panel, a scanning signal driving module, a data signal driving module and a connecting module; the display panel comprises a plurality of pairs of scanning lines, a plurality of data lines and a plurality of pixel units; a plurality of pairs of scanning lines are arranged along the row direction; a plurality of data lines are arranged along the column direction; the pixel units are arranged between each pair of scanning lines and are arranged in a matrix manner, each two adjacent rows of pixel units share one data line, and each row of pixel units are pixels with the same color; the connecting module is used for changing the connecting sequence of the pixel units and the scanning lines into a preset sequence; the scanning signal driving module is used for inputting scanning pulse signals to the scanning lines; the data signal driving module is used for inputting square wave data signals to the data lines so as to improve vertical bright and dark lines on the display panel; wherein the polarity of the square wave data signal is inverted every 2n scan pulses.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a method and an apparatus for improving vertical bright and dark lines of a display panel.
Background
The existing liquid crystal display device generally has three driving structures: a standard rate driving type, a double rate driving type, and a triple rate driving type. When the resolution of the display device is 1366 × 768, 4098 data lines and 768 scan lines are in the standard rate driving type; 2049 data lines of double-rate driving type and 1536 scanning lines; the triple rate driving type has 1366 data lines and 2304 scan lines.
When the data signal charges the pixels of the display panel through the data line, due to the impedance, the charging time of the data signal to the adjacent pixels is different, so that the charging rate of partial pixels is insufficient, and the display panel has vertical bright and dark lines.
Disclosure of Invention
Therefore, it is necessary to provide a method and an apparatus for improving vertical bright and dark lines of a display panel, in order to solve the problems that the charging rate of some pixels is insufficient due to the difference of the arrival time of the data signal at the adjacent pixels, and the vertical bright and dark lines of the display panel appear.
A method for improving the vertical bright and dark lines of a display panel comprises a plurality of pairs of scanning lines, a plurality of data lines and a plurality of pixel units; a plurality of pairs of scanning lines are arranged along the row direction; a plurality of data lines are arranged along the column direction; the pixel units are arranged between each pair of scanning lines and are arranged in a matrix manner, and each two adjacent columns of pixel units share one data line; each column of pixel units are pixels with the same color; the method for improving the vertical bright and dark lines of the display panel comprises the following steps:
changing the connection sequence of the pixel units and the scanning lines into a preset sequence;
inputting a scanning pulse signal to the scanning line;
inputting square wave data signals to the data lines to improve vertical bright and dark lines on the display panel; the polarity of the square wave data signal is inverted every 2n scanning pulses, wherein n is an integer greater than or equal to 1.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of red, green and blue; each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and one data line close to one end of the scanning line is the 1 st data line; each scanning line is sequentially sequenced from one end of the data line to the other end of the data line; the preset sequence is that odd-numbered column pixel units connected with the 3N +1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N +1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the rest data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 0.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of red, green and blue; each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and one data line close to one end of the scanning line is the 1 st data line; each scanning line is sequentially sequenced from one end of the data line to the other end of the data line; the preset sequence is that odd-numbered column pixel units connected with the 3 Nth data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3 Nth data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the rest data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of green, red and blue; each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and one data line close to one end of the scanning line is the 1 st data line; each scanning line is sequentially sequenced from one end of the data line to the other end of the data line; the preset sequence is that odd-numbered column pixel units connected with the 3N-1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N-1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the rest data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of blue, red and green; each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and one data line close to one end of the scanning line is the 1 st data line; each scanning line is sequentially sequenced from one end of the data line to the other end of the data line; the preset sequence is that odd-numbered column pixel units connected with the 3 Nth data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3 Nth data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the rest data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of green, blue and red; each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and one data line close to one end of the scanning line is the 1 st data line; each scanning line is sequentially sequenced from one end of the data line to the other end of the data line; the preset sequence is that odd-numbered column pixel units connected with the 3N-1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N-1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the rest data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a cycle of blue, green and red; each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and one data line close to one end of the scanning line is the 1 st data line; each scanning line is sequentially sequenced from one end of the data line to the other end of the data line; the preset sequence is that odd-numbered column pixel units connected with the 3N +1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N +1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the rest data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 0.
A device for improving the vertical bright and dark lines of a display panel comprises the display panel, a connecting module, a scanning signal driving module and a data signal driving module; the display panel comprises a plurality of pairs of scanning lines, a plurality of data lines and a plurality of pixel units; a plurality of pairs of scanning lines are arranged along the row direction; a plurality of data lines are arranged along the column direction; the pixel units are arranged between each pair of scanning lines and are arranged in a matrix manner, and each two adjacent columns of pixel units share one data line; each column of pixel units are pixels with the same color; the connecting module is used for changing the connecting sequence of the pixel units and the scanning lines into a preset sequence; the scanning signal driving module is used for inputting scanning pulse signals to the scanning lines; the data signal driving module is used for inputting square wave data signals to the data lines so as to improve vertical bright and dark lines on the display panel; the polarity of the square wave data signal is inverted every 2n scanning pulses, wherein n is an integer greater than or equal to 1.
In one embodiment, the display device further comprises a timing controller, wherein the timing controller is used for controlling the polarity of the square wave data signals to be inverted every 2n scanning pulses and controlling the polarities of the square wave data signals on two adjacent data lines to be opposite at the same time.
A device for improving the vertical bright and dark lines of a display panel comprises the display panel, a connecting module, a scanning signal driving module, a data signal driving module and a time schedule controller; the display panel comprises a plurality of pairs of scanning lines, a plurality of data lines and a plurality of pixel units; a plurality of pairs of scanning lines are arranged along the row direction; a plurality of data lines are arranged along the column direction; the pixel units are arranged between each pair of scanning lines and are arranged in a matrix manner, and each two adjacent columns of pixel units share one data line; each column of pixel units are pixels with the same color; the connecting module is used for changing the connecting sequence of the pixel units and the scanning lines into a preset sequence; the scanning signal driving module is used for inputting scanning pulse signals to the scanning lines; the data signal driving module is used for inputting square wave data signals to the data lines so as to improve vertical bright and dark lines on the display panel; the time sequence controller is used for controlling the polarity of the square wave data signals to be inverted once after 2n scanning pulses and controlling the polarities of the square wave data signals on two adjacent data lines to be opposite at the same time, wherein n is an integer greater than or equal to 1.
The device for improving the vertical bright and dark lines of the display panel changes the vertical dark lines generated in the pixel units with the green color into the pixel units with the red or blue color by changing the connection sequence of the pixel units and the scanning lines into a preset sequence, so that the display effect of the vertical bright and dark lines of the display panel is improved.
Drawings
FIG. 1 is a schematic diagram of a pixel cell array of a display panel according to an embodiment;
FIG. 2 is a driving waveform diagram of a data square wave signal and a scan signal of an embodiment;
FIG. 3 is a polarity diagram of each pixel unit shown in FIG. 1 in a frame;
FIG. 4 is a color arrangement diagram of each pixel cell shown in FIG. 1;
FIG. 5 illustrates the light and dark effects of each pixel cell shown in FIG. 1;
FIG. 6 is a schematic diagram of a display device according to an embodiment;
FIG. 7 is a schematic diagram of a pixel cell array of a display panel according to another embodiment;
FIG. 8 is a schematic diagram of a pixel cell array of a display panel according to another embodiment;
FIG. 9 is a driving waveform diagram of a square wave data signal of an embodiment;
FIG. 10 is a flowchart illustrating a driving method of a display panel according to an embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
The display panel of the present application can be an lcd (liquid Crystal display) panel, an OLED (Organic Light-Emitting Diode) panel, or a QLED (Quantum Dots Light-Emitting Diode) panel (but not limited thereto). The LCD panel includes: a switch array (TFT) substrate, a Color Filter (CF) substrate, and a liquid crystal layer formed between the two substrates.
In order to make the technical solution adopted by the present application to improve the vertical bright and dark lines of the display panel clearer, the following description will take a driving method in which the double-rate driving type display panel adopts 1+2 lines as an example to explain the principle of generating the vertical bright and dark lines of the display panel.
Referring to fig. 1, fig. 1 is a schematic diagram of a pixel array of a double-rate driving type display panel, in which G1, G2, G3, a.so., G1536 are scan lines arranged in a row direction, G1 and G2 constitute a pair of scan lines, G3 and G4 constitute a pair of scan lines, and so on, G1535 and G1536 constitute a pair of scan lines, and D1, D2, D3, a.so., D2049 are data lines arranged in a column direction. The pixel units are arranged between each pair of scanning lines and are arranged in a matrix, and the positions of the pixel units are represented by Pxy, wherein x represents an x-th row, and y represents a y-th column. Every two adjacent columns of pixel units share one data line, the adjacent pixel units in the same row are connected with different scanning lines, and the pixel units in the same row which are separated from each other by one pixel unit are connected with the same scanning line.
The driving sequence of the scan lines is from top to bottom, i.e., from G1, G2, G3,.., to G1536, and the driving sequence of the data lines is from left to right, i.e., from D1, D2, D3,., to D2049. During scanning, a scanning pulse signal is input into the scanning line and is applied to an active array switch of the pixel unit connected with the scanning line, the active array switch is turned on, a square wave data signal input into the data line connected with the active array switch is received, and the square wave data signal charges the pixel unit. In fig. 1, odd-numbered rows of pixel units are connected to odd-numbered scanning lines, and even-numbered rows of pixel units are connected to even-numbered scanning lines. Taking the scanning lines G1 and G2 and the data lines D1 and D2 as an example, when the scanning line G1 is scanned, the pixel units P11 and P13 receive the square wave data signals input by the data lines D1 and D2, respectively; when scanning the scan line G2, the pixel cells P12 and P14 respectively receive the square wave data signals inputted from the data lines D1 and D2.
Referring to fig. 2 and 3, when the polarity of the square wave data signal is inverted every 2 scan pulses, the transmission waveform of the square wave data signal on the data line is not an ideal square wave in practice due to the impedance, but there is a delay when the polarity changes. When the scanning pulse signals are sequentially input to the scanning lines, the square wave data signals input to the data lines sequentially charge the pixel units. Taking the square wave data signal input by the data line D1 as an example, the square wave data signal input by the data line D1 sequentially charges the pixel units P11, P12, P21, P22, P31, P32,.. multidot, P7681, and P7682, and since the square wave data signal has a voltage polarity inversion when charging the pixel units P11 to P12, P21 to P22, and P7681 to P7682, the charging time is short, and therefore, the luminance of the even-numbered columns of pixel units (P12, P22, P32,.. multidot.3982) is dark, and the luminance of the odd-numbered columns of pixel units (P365, P31, P21, P587681) is bright.
Under the same backlight source and the same display panel, the brightness difference of the pixels of three colors of red (R), green (G) and blue (B) is large under the same gray scale, wherein under the same gray scale, the brightness of the green pixel is brightest, and the brightness of the red pixel is next to the brightness of the blue pixel is darkest, as shown in table one.
| Gray luminance | R | G | B |
| L30 | 0.72 | 2.99 | 0.34 |
| L48 | 1.84 | 7.8 | 0.85 |
| L64 | 3.27 | 14.09 | 1.48 |
| L128 | 13.53 | 58.65 | 6.04 |
| L255 | 52.26 | 233.3 | 30.3 |
Table-luminance ratio of RGB at different gray levels
Referring to fig. 4, each column of pixels of the display panel has RGBRGBRGBRGB … …, when a dark line is generated on a column of pixels having red or blue color, the vertical bright and dark line is not obvious because the luminance of the pixel having red or blue color is darker than that of the pixel having green color, but when a dark line is generated on a column of pixels having green color, the vertical bright and dark line is obvious because the luminance of the pixel having green color is brighter than that of the pixel having red or blue color. Fig. 5 is a diagram showing the effect of bright and dark lines displayed on the display panel, where L represents bright and a represents dark.
Referring to fig. 6, fig. 6 is a schematic diagram of an apparatus for improving vertical bright and dark lines of a display panel according to the present application. The device for improving the vertical bright and dark lines of the display panel comprises a display panel 10, a scanning signal driving module 20, a data signal driving module 30 and a connecting module 40.
The display panel 10 includes a plurality of pairs of scan lines, a plurality of data lines, and a plurality of pixel units.
A plurality of pairs of scanning lines are arranged in a row direction. The data lines are arranged along the column direction. The pixel units are arranged between each pair of scanning lines and are arranged in a matrix manner, and each two adjacent columns of pixel units share one data line. Each column of pixel units is pixels of the same color. The colors of the pixel units comprise red, green and blue.
The connection module 40 is configured to change a connection sequence of the pixel units and the scan lines to a preset sequence to improve vertical bright and dark lines on the display panel.
The display panel further comprises an active array switch K, each pixel unit is connected with the drain electrode of the active array switch K, the grid electrode of the active array switch K is connected with the scanning line, and the source electrode of the active array switch K is connected with the data line.
And changing the connection sequence of the pixel units and the scanning lines, namely changing the connection sequence of the pixel units and the scanning lines through the active array switch K.
It should be noted that the driving sequence of the scan lines is from top to bottom, that is, the odd scan lines in each pair of scan lines are driven first, the even scan lines in each pair of scan lines are driven later, and each pair of scan lines are driven sequentially from top to bottom. The driving sequence of the data lines is from left to right. As shown in fig. 7, the driving sequence of the scan lines is G1, G2, G3, and G2m, and the driving sequence of the data lines is D1, D2, D3, and Dn.
Referring to fig. 7, in one embodiment, the colors of the pixel units in each column are cyclically arranged from one end of the scan line to the other end of the scan line with a period of red, green and blue. And each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and the data line close to one end of the scanning line is the 1 st data line. Each scanning line is sequentially sequenced from one end of the data line to the other end of the data line. When the display panel 10 adopts a driving mode of 1+2 lines, the preset sequence is that odd-numbered column pixel units connected with the 3N +1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N +1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, and even-numbered column pixel units connected with the rest data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 0.
Taking fig. 7 as an example, the data lines D1, D2, D3,. and Dn are sequentially ordered from one end of the scan line to the other end of the scan line, and the data line D1 near one end of the scan line is the 1 st data line. The scanning lines G1, G2, G3, G2m are sequentially ordered from one end of the data line to the other end of the data line. Scan lines G1 and G2 are a pair of scan lines, scan lines G3 and G4 are a pair of scan lines, and scan lines G2m-1 and G2m are a pair of scan lines. The scanning lines G1, G3, G5, ·, G2m-1 are respectively odd-numbered scanning lines of each pair of scanning lines, and the scanning lines G2, G4, G6,. and G2m are respectively even-numbered scanning lines of each pair of scanning lines. The pixel units on the left sides of the data lines D1, D2, D3,. and Dn are respectively odd-column pixel units, and the pixel units on the right sides of the data lines D1, D2, D3,. and. Dn are respectively even-column pixel units. When the display panel 10 adopts a driving mode of 1+2 lines, odd-numbered column pixel cells connected with the 3N +1 (e.g., D4) th data line are respectively connected with even-numbered scan lines of each pair of scan lines, even-numbered column pixel cells connected with the 3N +1 th data line are respectively connected with odd-numbered scan lines of each pair of scan lines, odd-numbered column pixel cells connected with the rest data line are respectively connected with odd-numbered scan lines of each pair of scan lines, and even-numbered column pixel cells connected with the rest data line are respectively connected with even-numbered scan lines of each pair of scan lines, so that the dark line of the display panel 10 is generated from pixel cells with red or blue color, and the dark line is prevented from being generated from pixel cells with green color, thereby effectively improving the vertical bright and dark lines of the display panel.
The driving order of the scanning lines is the order of arranging the scanning lines, and the driving order of the data lines is the order of arranging the data lines.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of red, blue and green. And each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and the data line close to one end of the scanning line is the 1 st data line. Each scanning line is sequentially sequenced from one end of the data line to the other end of the data line. When the display panel 10 adopts a driving mode of 1+2 lines, the preset sequence is that odd-numbered column pixel units connected with the 3 nth data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3 nth data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the rest data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of green, red and blue. And each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and the data line close to one end of the scanning line is the 1 st data line. Each scanning line is sequentially sequenced from one end of the data line to the other end of the data line. When the display panel 10 adopts a driving mode of 1+2 lines, the preset sequence is that odd-numbered column pixel units connected with the 3N-1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N-1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, and even-numbered column pixel units connected with the rest data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of blue, red and green. And each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and the data line close to one end of the scanning line is the 1 st data line. Each scanning line is sequentially sequenced from one end of the data line to the other end of the data line. When the display panel 10 adopts a driving mode of 1+2 lines, the preset sequence is that odd-numbered column pixel units connected with the 3 nth data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3 nth data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the rest data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of green, blue and red. And each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and the data line close to one end of the scanning line is the 1 st data line. Each scanning line is sequentially sequenced from one end of the data line to the other end of the data line. When the display panel 10 adopts a driving mode of 1+2 lines, the preset sequence is that odd-numbered column pixel units connected with the 3N-1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N-1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, and even-numbered column pixel units connected with the rest data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of blue, green and red. And each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and the data line close to one end of the scanning line is the 1 st data line. Each scanning line is sequentially sequenced from one end of the data line to the other end of the data line. When the display panel 10 adopts a driving mode of 1+2 lines, the preset sequence is that odd-numbered column pixel units connected with the 3N +1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N +1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, and even-numbered column pixel units connected with the rest data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 0.
Referring to fig. 8, in one embodiment, the colors of the pixel units in each column are cyclically arranged from one end of the scan line to the other end of the scan line with a period of red, green and blue. And each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and the data line close to one end of the scanning line is the 1 st data line. Each scanning line is sequentially sequenced from one end of the data line to the other end of the data line. When the display panel 10 adopts a 2-line driving mode, the preset sequence is that odd-numbered column pixel units connected with the 3 nth data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3 nth data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, and even-numbered column pixel units connected with the rest data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
When the display panel 10 adopts a 2-line driving mode, odd-numbered column pixel units connected with the 3N +1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, and even-numbered column pixel units connected with the rest data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, so that dark lines of the display panel 10 are generated in pixel units with red or blue colors, dark lines are prevented from being generated in pixel units with green colors, and vertical bright and dark lines of the display panel are effectively improved.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of red, blue and green. And each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and the data line close to one end of the scanning line is the 1 st data line. Each scanning line is sequentially sequenced from one end of the data line to the other end of the data line. When the display panel 10 adopts a 2-line driving mode, the preset sequence is that odd-numbered column pixel units connected with the 3N-1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N-1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, and even-numbered column pixel units connected with the rest data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of green, red and blue. And each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and the data line close to one end of the scanning line is the 1 st data line. Each scanning line is sequentially sequenced from one end of the data line to the other end of the data line. When the display panel 10 adopts a 2-line driving mode, the preset sequence is that odd-numbered column pixel units connected with the 3N +1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N +1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, and even-numbered column pixel units connected with the rest data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 0.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of blue, red and green. And each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and the data line close to one end of the scanning line is the 1 st data line. Each scanning line is sequentially sequenced from one end of the data line to the other end of the data line. When the display panel 10 adopts a 2-line driving mode, the preset sequence is that odd-numbered column pixel units connected with the 3N-1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N-1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, and even-numbered column pixel units connected with the rest data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of green, blue and red. And each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and the data line close to one end of the scanning line is the 1 st data line. Each scanning line is sequentially sequenced from one end of the data line to the other end of the data line. When the display panel 10 adopts a 2-line driving mode, the preset sequence is that odd-numbered column pixel units connected with the 3N +1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N +1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, and even-numbered column pixel units connected with the rest data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 0.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of blue, green and red. And each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and the data line close to one end of the scanning line is the 1 st data line. Each scanning line is sequentially sequenced from one end of the data line to the other end of the data line. When the display panel 10 adopts a 2-line driving mode, the preset sequence is that odd-numbered column pixel units connected with the 3 nth data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3 nth data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, and even-numbered column pixel units connected with the rest data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
It should be noted that the preset order is not limited to the above order. The connection sequence of the pixel units and the scan lines of the display panel 10 is changed to the preset sequence, so that the dark lines of the display panel 10 are generated in the pixel units with red or blue colors, and the generation of the dark lines in the pixel units with green colors is avoided, thereby effectively improving the vertical bright and dark lines of the display panel.
The scan signal driving module 20 is configured to input a scan pulse signal to the scan line.
When the scanning line inputs a scanning pulse signal, the active array switch K connected with the scanning line is turned on, and then the square wave data signal transmitted by the corresponding data line can be received.
The data signal driving module is used for inputting square wave data signals to the data lines. Wherein the polarity of the square wave data signal is inverted every 2n scan pulses.
The apparatus for improving vertical bright and dark lines of a display panel further comprises a timing controller 30, wherein the timing controller 30 is configured to control the polarity of the square wave data signals to be inverted every 2n scan pulses and to control the polarities of the square wave data signals on two adjacent data lines to be opposite at the same time, as shown in fig. 9, which is illustrated in fig. 9 by the square wave data signals on the data line D1 to the data line D5.
The display panel 10 may adopt a 1+2 line driving method, and may also adopt a 2 line driving method. The driving method of 1+2 lines and the driving method of 2 lines are both the driving method in which the polarity of the square wave data signal is inverted once by 2 scan pulses.
In one embodiment, the positive voltage of the square wave data signal is 7V and the negative voltage is-7V.
The device for improving the vertical bright and dark lines of the display panel is characterized in that the connection sequence of the pixel units and the scanning lines is changed into a preset sequence, so that the vertical dark lines generated in the pixel units with the green colors are changed into the pixel units with the red or blue colors, and the display effect of the vertical bright and dark lines of the display panel is improved.
Please refer to fig. 10, which is a flowchart illustrating a method for improving vertical bright and dark lines of a display panel according to a preferred embodiment of the present application. It should be noted that the method of the present application is not limited to the order of the following steps, and in other embodiments, the method of the present application may include only a part of the following steps, or a part of the steps may be deleted. In addition, in other embodiments, one step may be divided into a plurality of steps, or a plurality of steps may be combined into one step.
The display panel comprises a plurality of pairs of scanning lines, a plurality of data lines and a plurality of pixel units. A plurality of pairs of scanning lines are arranged in a row direction. The data lines are arranged along the column direction. The pixel units are arranged between each pair of scanning lines and are arranged in a matrix manner, and each two adjacent columns of pixel units share one data line. Each column of pixel units is pixels of the same color.
The method for improving the vertical bright and dark lines of the display panel comprises the following steps.
Step S1, changing the connection sequence of the pixel units and the scan lines to a preset sequence.
In step S2, a scan pulse signal is input to the scan line.
Step S3, inputting square wave data signals to the data lines to improve the vertical bright and dark lines on the display panel; the polarity of the square wave data signal is inverted every 2n scanning pulses, wherein n is an integer greater than or equal to 1.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of red, green and blue. And each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and the data line close to one end of the scanning line is the 1 st data line. Each scanning line is sequentially sequenced from one end of the data line to the other end of the data line. When the display panel 10 adopts a driving mode of 1+2 lines, the preset sequence is that odd-numbered column pixel units connected with the 3N +1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N +1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, and even-numbered column pixel units connected with the rest data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 0.
In one embodiment, the colors of the pixel units in each column are circularly arranged from one end of the scanning line to the other end of the scanning line in a period of red, green and blue. And each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and the data line close to one end of the scanning line is the 1 st data line. Each scanning line is sequentially sequenced from one end of the data line to the other end of the data line. When the display panel 10 adopts a 2-line driving mode, the preset sequence is that odd-numbered column pixel units connected with the 3N +1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, and even-numbered column pixel units connected with the rest data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
It should be noted that, in the foregoing embodiment, the explanation of the apparatus for improving vertical bright and dark lines of a display panel is also applicable to the method for improving vertical bright and dark lines of a display panel of this embodiment, and the implementation principle is similar, and thus, no further description is given here.
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 application, 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 concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for improving the vertical bright and dark lines of a display panel comprises a plurality of pairs of scanning lines, a plurality of data lines and a plurality of pixel units; a plurality of pairs of scanning lines are arranged along the row direction; a plurality of data lines are arranged along the column direction; the pixel units are arranged between each pair of scanning lines and are arranged in a matrix manner, and each two adjacent columns of pixel units share one data line; each column of pixel units are pixels with the same color; the method for improving the vertical bright and dark lines of the display panel is characterized by comprising the following steps of:
changing the connection sequence of the pixel units and the scanning lines into a preset sequence according to the color period cycle rule of each row of the pixel units arranged along the row direction of the scanning lines, wherein each pair of the scanning lines comprises an odd row scanning line and an even row scanning line, the pixel units in the same row are connected with the odd row scanning line or the even row scanning line, a plurality of data lines are periodically sequenced from one end of the scanning line to the other end of the scanning line, and the connection sequence of the pixel units in the odd row and the scanning line connected with the preset data line in the same period, the connection sequence of the odd-numbered row pixel units connected with the rest data lines in the period and the scanning lines is different, the connection sequence of the even-numbered row pixel units connected with the preset data lines in the same period and the scanning lines, the connection sequence of the even-numbered pixel units connected with the rest data lines in the period and the scanning lines is different;
inputting a scanning pulse signal to the scanning line;
inputting square wave data signals to the data lines to improve vertical bright and dark lines on the display panel; the polarity of the square wave data signal is inverted every 2n scanning pulses, wherein n is an integer greater than or equal to 1.
2. The method of claim 1, wherein the colors of each column of pixel units are cyclically arranged from one end of the scanning line to the other end of the scanning line in a period of red, green and blue; each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and one data line close to one end of the scanning line is the 1 st data line; each scanning line is sequentially sequenced from one end of the data line to the other end of the data line; the preset sequence is that odd-numbered column pixel units connected with the 3N +1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N +1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the rest data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 0.
3. The method of claim 1, wherein the colors of each column of pixel units are cyclically arranged from one end of the scanning line to the other end of the scanning line in a period of red, green and blue; each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and one data line close to one end of the scanning line is the 1 st data line; each scanning line is sequentially sequenced from one end of the data line to the other end of the data line; the preset sequence is that odd-numbered column pixel units connected with the 3 Nth data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3 Nth data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the rest data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
4. The method of claim 1, wherein the colors of each column of pixel units are cyclically arranged from one end of the scanning line to the other end of the scanning line in a period of green, red and blue; each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and one data line close to one end of the scanning line is the 1 st data line; each scanning line is sequentially sequenced from one end of the data line to the other end of the data line; the preset sequence is that odd-numbered column pixel units connected with the 3N-1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N-1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the rest data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
5. The method of claim 1, wherein the colors of each column of pixel units are cyclically arranged from one end of the scanning line to the other end of the scanning line with a period of blue, red and green; each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and one data line close to one end of the scanning line is the 1 st data line; each scanning line is sequentially sequenced from one end of the data line to the other end of the data line; the preset sequence is that odd-numbered column pixel units connected with the 3 Nth data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3 Nth data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the rest data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
6. The method of claim 1, wherein the colors of each column of pixel units are cyclically arranged from one end of the scanning line to the other end of the scanning line in a period of green, blue and red; each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and one data line close to one end of the scanning line is the 1 st data line; each scanning line is sequentially sequenced from one end of the data line to the other end of the data line; the preset sequence is that odd-numbered column pixel units connected with the 3N-1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N-1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the rest data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 1.
7. The method of claim 1, wherein the colors of each column of pixel units are cyclically arranged from one end of the scanning line to the other end of the scanning line in a period of cyan and red; each data line is sequentially sequenced from one end of the scanning line to the other end of the scanning line, and one data line close to one end of the scanning line is the 1 st data line; each scanning line is sequentially sequenced from one end of the data line to the other end of the data line; the preset sequence is that odd-numbered column pixel units connected with the 3N +1 th data line are respectively connected with even-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the 3N +1 th data line are respectively connected with odd-numbered scanning lines of each pair of scanning lines, odd-numbered column pixel units connected with the rest data lines are respectively connected with odd-numbered scanning lines of each pair of scanning lines, even-numbered column pixel units connected with the rest data lines are respectively connected with even-numbered scanning lines of each pair of scanning lines, wherein N is an integer greater than or equal to 0.
8. The device for improving the vertical bright and dark lines of the display panel is characterized by comprising the display panel, a connecting module, a scanning signal driving module and a data signal driving module; the display panel comprises a plurality of pairs of scanning lines, a plurality of data lines and a plurality of pixel units; a plurality of pairs of scanning lines are arranged along the row direction; a plurality of data lines are arranged along the column direction; the pixel units are arranged between each pair of scanning lines and are arranged in a matrix manner, and each two adjacent columns of pixel units share one data line; each column of pixel units are pixels with the same color; the connecting module is used for changing the connecting sequence of the pixel units and the scanning lines into a preset sequence according to the color period cycle rule of each row of the pixel units arranged along the row direction of the scanning lines, each pair of the scanning lines comprises an odd-row scanning line and an even-row scanning line, the pixel units in the same row are connected with the odd-row scanning line or are connected with the even-row scanning line, a plurality of data lines are periodically sequenced from one end of the scanning line to the other end of the scanning line, and the connecting sequence of the pixel units in the odd-row and the scanning lines connected with the preset data lines in the same period, the connection sequence of the odd-numbered row pixel units connected with the rest data lines in the period and the scanning lines is different, the connection sequence of the even-numbered row pixel units connected with the preset data lines in the same period and the scanning lines, the connection sequence of the even-numbered pixel units connected with the rest data lines in the period and the scanning lines is different; the scanning signal driving module is used for inputting scanning pulse signals to the scanning lines; the data signal driving module is used for inputting square wave data signals to the data lines so as to improve vertical bright and dark lines on the display panel; the polarity of the square wave data signal is inverted every 2n scanning pulses, wherein n is an integer greater than or equal to 1.
9. The apparatus of claim 8, further comprising a timing controller for controlling the polarity of the square wave data signals to be inverted every 2n scan pulses and for controlling the polarities of the square wave data signals on two adjacent data lines to be opposite at the same time.
10. The device for improving the vertical bright and dark lines of the display panel is characterized by comprising the display panel, a connecting module, a scanning signal driving module, a data signal driving module and a time sequence controller; the display panel comprises a plurality of pairs of scanning lines, a plurality of data lines and a plurality of pixel units; a plurality of pairs of scanning lines are arranged along the row direction; a plurality of data lines are arranged along the column direction; the pixel units are arranged between each pair of scanning lines and are arranged in a matrix manner, and each two adjacent columns of pixel units share one data line; each column of pixel units are pixels with the same color; the connecting module is used for changing the connecting sequence of the pixel units and the scanning lines into a preset sequence according to the color period cycle rule of each row of the pixel units arranged along the row direction of the scanning lines, each pair of the scanning lines comprises an odd-row scanning line and an even-row scanning line, the pixel units in the same row are connected with the odd-row scanning line or are connected with the even-row scanning line, a plurality of data lines are periodically sequenced from one end of the scanning line to the other end of the scanning line, and the connecting sequence of the pixel units in the odd-row and the scanning lines connected with the preset data lines in the same period, the connection sequence of the odd-numbered row pixel units connected with the rest data lines in the period and the scanning lines is different, the connection sequence of the even-numbered row pixel units connected with the preset data lines in the same period and the scanning lines, the connection sequence of the even-numbered pixel units connected with the rest data lines in the period and the scanning lines is different; the scanning signal driving module is used for inputting scanning pulse signals to the scanning lines; the data signal driving module is used for inputting square wave data signals to the data lines so as to improve vertical bright and dark lines on the display panel; the time sequence controller is used for controlling the polarity of the square wave data signals to be inverted once after 2n scanning pulses and controlling the polarities of the square wave data signals on two adjacent data lines to be opposite at the same time, wherein n is an integer greater than or equal to 1.
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