CN109523966B - Display panel driving method and display device - Google Patents
Display panel driving method and display device Download PDFInfo
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- CN109523966B CN109523966B CN201811556135.0A CN201811556135A CN109523966B CN 109523966 B CN109523966 B CN 109523966B CN 201811556135 A CN201811556135 A CN 201811556135A CN 109523966 B CN109523966 B CN 109523966B
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- G—PHYSICS
- 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
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
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- G—PHYSICS
- 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
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
- G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
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Abstract
The application relates to a driving method of a display panel and a display device, wherein scanning lines are arranged along a row direction, and each scanning line comprises n pairs of first scanning lines and a plurality of pairs of second scanning lines; the plurality of pairs of second scanning lines are arranged on one side of the n pairs of first scanning lines, and the n pairs of first scanning lines and the plurality of pairs of second scanning lines are sequenced according to a preset sequence; a plurality of data lines are arranged along the column direction; the plurality of pixel units are arranged between each pair of second scanning lines; every two adjacent columns of pixel units share one data line, the pixel units sharing one data line in the same row are connected with different scanning lines, wherein n is an odd number; the scanning signal driving module is used for simultaneously inputting scanning pulse signals to the Nth row of scanning lines and the (N + 2) th row of scanning lines; the data signal driving module is used for inputting square wave data signals to the data lines so as to charge the pixel units connected with the N-th row of scanning lines and pre-charge the pixel units connected with the (N + 2) th row of scanning lines, so that the charging rate of the pixel units is improved.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a driving method of a display panel and a display device.
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 display device of the double-rate driving type structure adopts a dot inversion driving method, the charging rate of the pixels is low, and the image display is affected.
Disclosure of Invention
Accordingly, it is necessary to provide a driving method of a display panel and a display device, which solve the problem of a low charging rate of pixels when a dot inversion driving method is adopted for a display device having a double-rate driving type structure.
A display device comprises a display panel, a scanning signal driving module and a data signal driving module; the display panel comprises a scanning line, a plurality of data lines and a plurality of pixel units; the scanning lines are arranged along the row direction and comprise n pairs of first scanning lines and a plurality of pairs of second scanning lines; the plurality of pairs of second scanning lines are arranged on one side of the n pairs of first scanning lines, and the n pairs of first scanning lines and the plurality of pairs of second scanning lines are sequenced according to a preset sequence; a plurality of data lines are arranged along the column direction; the plurality of pixel units are arranged between each pair of second scanning lines and are arranged in a matrix; every two adjacent columns of pixel units share one data line, the pixel units sharing one data line in the same row are connected with different scanning lines, wherein n is an odd number; the scanning signal driving module is used for simultaneously inputting scanning pulse signals to an Nth row of scanning lines and an (N + 2) th row of scanning lines, wherein N is an integer greater than or equal to 1; the data signal driving module is used for inputting a square wave data signal to the data line so as to charge the pixel unit connected with the N-th row of scanning lines and pre-charge the pixel unit connected with the (N + 2) th row of scanning lines at the same time, so that the charging rate of the pixel unit is improved, wherein the polarity of the square wave data signal is inverted once after N scanning pulses.
In one embodiment, in one frame, the charging time of the pixel unit connected to the N + 2N-th row of scan lines is 2 scan pulses.
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 time when n scanning pulses pass through and controlling the polarities of the square wave data signals on two adjacent data lines to be opposite at the same time.
In one embodiment, the display panel further includes an active array switch, each pixel unit is connected to a drain of the active array switch, a gate of the active array switch is connected to the scan line, and a source of the active array switch is connected to the data line.
In one embodiment, the predetermined sequence is that a first scan line far from the second scan line is used as a first row of scan lines, and n pairs of the first scan lines and a plurality of pairs of the second scan lines are sequentially ordered along the same direction.
A display device comprises a display panel, a scanning signal driving module, a data signal driving module and a time schedule controller; the display panel comprises a scanning line, a plurality of data lines and a plurality of pixel units; the scanning lines are arranged along the row direction and comprise n pairs of first scanning lines and a plurality of pairs of second scanning lines; the plurality of pairs of second scanning lines are arranged on one side of the n pairs of first scanning lines, and the n pairs of first scanning lines and the plurality of pairs of second scanning lines are sequenced according to a preset sequence; a plurality of data lines are arranged along the column direction; the plurality of pixel units are arranged between each pair of second scanning lines and are arranged in a matrix; every two adjacent columns of pixel units share one data line, the pixel units sharing one data line in the same row are connected with different scanning lines, wherein n is an odd number; the scanning signal driving module is used for simultaneously inputting scanning pulse signals to an Nth row of scanning lines and an (N + 2) th row of scanning lines, wherein N is an integer greater than or equal to 1; the data signal driving module is used for inputting square wave data signals to the data lines so as to charge the pixel units connected with the N-th row of scanning lines and pre-charge the pixel units connected with the (N + 2N) -th row of scanning lines, so that the charging rate of the pixel units is improved; the time sequence controller is used for controlling the polarity of the square wave data signals to be inverted once after every n scanning pulses and controlling the polarities of the square wave data signals on two adjacent data lines to be opposite at the same moment.
A driving method of a display panel comprises a scanning line, a plurality of data lines and a plurality of pixel units; the scanning lines are arranged along the row direction and comprise n pairs of first scanning lines and a plurality of pairs of second scanning lines; the plurality of pairs of second scanning lines are arranged on one side of the n pairs of first scanning lines, and the n pairs of first scanning lines and the plurality of pairs of second scanning lines are sequenced according to a preset sequence; a plurality of data lines are arranged along the column direction; the plurality of pixel units are arranged between each pair of second scanning lines and are arranged in a matrix; every two adjacent columns of pixel units share one data line, the pixel units sharing one data line in the same row are connected with different scanning lines, wherein n is an odd number; the driving method of the display panel includes the steps of:
simultaneously inputting scanning pulse signals to an Nth row of scanning lines and an (N + 2) th row of scanning lines, wherein N is an integer greater than or equal to 1;
inputting a square wave data signal to the data line to charge the pixel unit connected with the N-th row of scanning lines, and simultaneously pre-charging the pixel unit connected with the (N + 2N) -th row of scanning lines to improve the charging rate of the pixel unit;
the polarity of the square wave data signal is inverted every n scan pulses.
In one embodiment, in one frame, the charging time of the pixel unit connected to the N + 2N-th row of scan lines is 2 scan pulses.
In one embodiment, the square wave data signals on two adjacent data lines have opposite polarities at the same time.
In one embodiment, the display panel further includes an active array switch, each pixel unit is connected to a drain of the active array switch, a gate of the active array switch is connected to the scan line, and a source of the active array switch is connected to the data line.
According to the display device and the driving method of the display panel, the N pairs of first scanning lines are arranged, when the scanning pulse signal is input to the N-th row of scanning lines, the scanning pulse signal is simultaneously input to the (N + 2) th row of scanning lines, so that the pixel units connected with the (N + 2) th row of scanning lines can be pre-charged, the pixel units on the display panel can be pre-charged, the charging rate is improved, and the display effect of the display panel is good.
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 schematic diagram of a display device according to an embodiment;
FIG. 5 is a schematic diagram of a pixel cell array of a display panel according to another embodiment;
FIG. 6 is a driving waveform diagram of a square wave data signal of an embodiment;
FIG. 7 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 pixel charging rate of the display panel clearer, the following explains that the pixel charging rate of the double-rate driving type display panel adopting the dot inversion driving method is lower.
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 1 scan pulse, 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, pixel unit P7681, and P7682, and since the square wave data signal has voltage polarity conversion from the pixel unit P11 to the pixel unit P12, from the pixel unit P12 to the pixel unit P21, from the pixel unit P21 to the pixel unit P22, pixel unit P7681 to the pixel unit P7682, the charging time of the pixel unit does not reach the ideal charging time, so that the charging rate of the pixel unit is insufficient, and the display effect of the picture is affected.
Referring to fig. 4, fig. 4 is a schematic view of a display device according to the present application. The display device includes a display panel 10, a scan signal driving module 20, and a data signal driving module 30.
The display panel 10 includes a scan line, a plurality of data lines, and a plurality of pixel units.
The scanning lines are arranged along the row direction and comprise n pairs of first scanning lines and a plurality of pairs of second scanning lines. The plurality of pairs of second scanning lines are arranged on one side of the n pairs of first scanning lines, and the n pairs of first scanning lines and the plurality of pairs of second scanning lines are sequenced according to a preset sequence. In an embodiment, the predetermined sequence is that a first scan line far from the second scan line is used as a first row of scan lines, and n pairs of the first scan lines and a plurality of pairs of the second scan lines are sequentially ordered along the same direction.
The data lines are arranged along the column direction. The pixel units are arranged between each pair of second scanning lines and are arranged in a matrix. Every two adjacent columns of pixel units share one data line, the pixel units sharing one data line in the same row are connected with different scanning lines, namely, the pixel units in one column positioned on one side of each data line are respectively connected with the second scanning lines sequenced first by each pair of second scanning lines, the pixel units in one column positioned on the other side of each data line are respectively connected with the second scanning lines sequenced last by each pair of second scanning lines, wherein n is an odd number.
Note that no pixel unit is provided between the first scan lines.
For the pixel units in the same row, the pixel units on both sides of the data line are sequentially driven, and the pixel units can be odd-numbered columns of pixel units on one side of the data line and then even-numbered columns of pixel units on the other side of the data line, or even-numbered columns of pixel units on one side of the data line and then odd-numbered columns of pixel units on the other side of the data line. When the odd-numbered pixel units on one side of the data line are driven first and the even-numbered pixel units on the other side of the data line are driven again, the odd-numbered pixel units are connected with the odd-numbered scanning lines, the even-numbered pixel units are connected with the even-numbered scanning lines, the scanning sequence of the scanning lines is that the odd-numbered scanning lines in a pair of scanning lines are scanned first and then the even-numbered scanning lines in a pair of scanning lines are scanned, and each pair of scanning lines are scanned sequentially. When the even-numbered pixel units on one side of the data line are driven first and the odd-numbered pixel units on the other side of the data line are driven again, the even-numbered pixel units are connected with the odd-numbered scanning lines, the odd-numbered pixel units are connected with the even-numbered scanning lines, the scanning sequence of the scanning lines is that the odd-numbered scanning lines in a pair of scanning lines are scanned first and then the even-numbered scanning lines in a pair of scanning lines are scanned, and each pair of scanning lines are scanned sequentially.
Referring to fig. 5, in one embodiment, the odd-numbered rows of pixel units are connected to the odd-numbered scan lines, and the even-numbered rows of pixel units are connected to the even-numbered scan lines. The scan lines include 1 pair of first scan lines and m-1 pairs of second scan lines. G1-G2 are first scan lines, and G1 and G2 are a pair of first scan lines, G3-G2 m are second scan lines, G3 and G4 are a pair of second scan lines, and so on, G2m-1 and G2m are a pair of second scan lines. No pixel cell is disposed between G1 and G2. The first scan line G1 is a first row scan line, the first scan line G2 is a second row scan line, the first scan line G3 is a third row scan line, the first scan line G4 is a fourth row scan line, the second scan line G5 is a fifth row scan line, and so on, and the second scan line G2m is a 2 m-th row scan line. Wherein m is an integer greater than or equal to 2.
The scan signal driving module 20 is configured to simultaneously input a scan pulse signal to an nth row of scan lines and an N +2 nth row of scan lines, where N is an integer greater than or equal to 1.
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.
When the scanning pulse signal is input into the (N + 2) th row of scanning lines, the active array switch K connected with the (N + 2) th row of scanning lines is turned on, and then the square wave data signal transmitted by the corresponding data line can be received.
The data signal driving module 30 is configured to input a square wave data signal to the data line to charge the pixel unit connected to the nth row of scan lines, and to precharge the pixel unit connected to the (N + 2) nth row of scan lines, so as to improve a charging rate of the pixel unit. Wherein the polarity of the square wave data signal is inverted every n scan pulses.
When a scanning pulse signal is input to the scanning line of the Nth row, the scanning pulse signal is simultaneously input to the scanning line of the (N + 2) th row, so that the pixel units connected with the scanning line of the (N + 2) th row are pre-charged, and when the scanning line of the (N + 2) th row is scanned, the pixel units connected with the scanning line of the (N + 2) th row are charged again. Therefore, in one frame, the charging time of the pixel units connected to the second scan line is increased, the charging rate is increased, and the overall brightness of the display panel 10 is improved.
In one frame, the charging time of the pixel units connected with the N + 2N-th row of scanning lines is 2 scanning pulses.
The description will be given by taking fig. 5 as an example. When a scan pulse signal is input to the first row scan line G1, a scan pulse signal is simultaneously input to the 3 rd row scan line, so that the pixel cell P11 connected to the 3 rd row scan line is pre-charged, and therefore, the charging time of the pixel cell P11 connected to the 3 rd row scan line is 2 scan pulses. When a scan pulse signal is input to the second row scan line G2, a scan pulse signal is simultaneously input to the 4 th row scan line, so that the pixel cell P12 connected to the 4 th row scan line is pre-charged, and therefore, the charging time of the pixel cell P12 connected to the 4 th row scan line is 2 scan pulses. The charging time of other pixel units and the like. Therefore, sufficient charging time can be obtained for the even-column pixel units, the luminance of the even-column pixel units is close to that of the odd-column pixel units, and the charging rate of the pixel units of the display panel 10 is improved.
If N pairs of first scan lines are not provided on the display panel 10, and the scan pulse signals are directly input to the nth row scan line and the N +2 nth row scan line at the same time, the first row of pixel cells of the display panel 10 will have a dark brightness because the first row of pixel cells are not precharged.
Since n pairs of first scanning lines are provided in the display panel 10 in a plurality, and no pixel unit is provided between the first scanning lines, even if a scanning pulse signal is input to the first scanning lines only once in one frame, the charging rate of all the pixel units of the display panel 10 can be increased, and the luminance of the display panel 10 as a whole can be increased.
The display device further includes a timing controller 40, wherein the timing controller 40 is configured to control the polarity of the square wave data signals to be inverted every n scan pulses and to control the polarity of the square wave data signals on two adjacent data lines to be opposite at the same time, as shown in fig. 6, and fig. 6 illustrates the square wave data signals on the data lines D1 to D5.
In one embodiment, the display panel 10 may adopt a dot inversion driving method.
In one embodiment, the positive voltage of the square wave data signal is 7V and the negative voltage is-7V.
The display panel 10 of the present application sets N pairs of first scan lines more, and when inputting the scan pulse signal to the nth row of scan lines, it inputs the scan pulse signal to the (N + 2) th row of scan lines simultaneously, so that the pixel units connected to the (N + 2) th row of scan lines can be pre-charged, and then the pixel units on the display panel can both be pre-charged, and the charging rate is improved, and the display effect of the display panel 10 is good.
Please refer to fig. 7, which is a flowchart illustrating a driving method 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 scanning line, a plurality of data lines and a plurality of pixel units. The scanning lines are arranged in a row direction. The scanning lines comprise n pairs of first scanning lines and a plurality of pairs of second scanning lines. The plurality of pairs of second scanning lines are arranged on one side of the n pairs of first scanning lines, and the n pairs of first scanning lines and the plurality of pairs of second scanning lines are sequenced according to a preset sequence. The data lines are arranged along the column direction. The pixel units are arranged between each pair of second scanning lines and are arranged in a matrix. Every two adjacent columns of pixel units share one data line, the pixel units sharing one data line in the same row are connected with different scanning lines, namely, the pixel units in one column positioned on one side of each data line are respectively connected with the second scanning lines sequenced first by each pair of second scanning lines, the pixel units in one column positioned on the other side of each data line are respectively connected with the second scanning lines sequenced last by each pair of second scanning lines, wherein n is an odd number.
In an embodiment, the predetermined sequence is that a first scan line far from the second scan line is used as a first row of scan lines, and n pairs of the first scan lines and a plurality of pairs of the second scan lines are sequentially ordered along the same direction.
In step S1, a scan pulse signal is simultaneously input to the nth row scan line and the (N + 2) th row scan line, where N is an integer greater than or equal to 1.
Step S2, inputting square wave data signals to the data lines to charge the pixel cells connected to the nth row of scan lines, and simultaneously pre-charging the pixel cells connected to the (N + 2) nth row of scan lines to increase the charging rate of the pixel cells.
In step S3, the polarity of the square wave data signal is inverted every n scan pulses.
It should be noted that, in the foregoing embodiment, the explanation of the display device is also applicable to the driving method of the display panel of the embodiment, and the implementation principle is similar, and is not described herein again.
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 display device is characterized by comprising a display panel, a scanning signal driving module and a data signal driving module; the display panel comprises a scanning line, a plurality of data lines and a plurality of pixel units; the scanning lines are arranged along the row direction and comprise n pairs of first scanning lines and a plurality of pairs of second scanning lines; the plurality of pairs of second scanning lines are arranged on one side of the n pairs of first scanning lines, and the n pairs of first scanning lines and the plurality of pairs of second scanning lines are sequenced according to a preset sequence; a plurality of data lines are arranged along the column direction; the plurality of pixel units are arranged between each pair of second scanning lines and are arranged in a matrix; every two adjacent columns of pixel units share one data line, the pixel units sharing one data line in the same row are connected with different scanning lines, wherein n is an odd number larger than 1; the scanning signal driving module is used for simultaneously inputting scanning pulse signals to an Nth row of scanning lines and an (N + 2) th row of scanning lines, wherein N is an integer greater than or equal to 1; the data signal driving module is used for inputting square wave data signals to the data lines so as to charge the pixel units connected with the Nth row of scanning lines,at the same timePre-charging pixel units connected with the (N + 2) th row of scanning lines, and improving the charging rate of the pixel units, wherein the polarity of the square wave data signals is inverted once after every N scanning pulses; the preset sequence is that a first scanning line far away from the second scanning line is taken as a first row of scanning lines, and n pairs of first scanning lines and a plurality of pairs of second scanning lines are sequentially sequenced along the same direction.
2. The display device according to claim 1, wherein a charging time of a pixel unit connected to a scanning line of an N + 2N-th row in one frame is 2 scanning pulses.
3. The display device according to claim 1, further comprising a timing controller for controlling the polarity of the square wave data signals to be inverted every n 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.
4. The display device according to claim 1, wherein the display panel further comprises an active array switch, each pixel unit is connected to a drain of the active array switch, a gate of the active array switch is connected to the scan line, and a source of the active array switch is connected to the data line.
5. A display device is characterized by comprising a display panel, a scanning signal driving module, a data signal driving module and a time sequence controller; the display panel comprises a scanning line, a plurality of data lines and a plurality of pixel units; the scanning lines are arranged along the row direction and comprise n pairs of first scanning lines and a plurality of pairs of second scanning lines; the plurality of pairs of second scanning lines are arranged on one side of the n pairs of first scanning lines, and the n pairs of first scanning lines and the plurality of pairs of second scanning lines are sequenced according to a preset sequence; a plurality of data lines are arranged along the column direction; the plurality of pixel units are arranged between each pair of second scanning lines and are arranged in a matrix; every two adjacent columns of pixel units share one data line, the pixel units sharing one data line in the same row are connected with different scanning lines, wherein n is an odd number larger than 1; the scanning signal driving module is used for simultaneously inputting scanning pulse signals to an Nth row of scanning lines and an (N + 2) th row of scanning lines, wherein N is an integer greater than or equal to 1; the data signal driving module is used for inputting square wave data signals to the data lines so as to charge the pixel units connected with the N-th row of scanning lines and pre-charge the pixel units connected with the (N + 2N) -th row of scanning lines, so that the charging rate of the pixel units is improved; the time sequence controller is used for controlling the polarity of the square wave data signals to be inverted once after every n scanning pulses and controlling the polarities of the square wave data signals on two adjacent data lines to be opposite at the same moment.
6. A driving method of a display panel comprises a scanning line, a plurality of data lines and a plurality of pixel units; the scanning lines are arranged along the row direction and comprise n pairs of first scanning lines and a plurality of pairs of second scanning lines; the plurality of pairs of second scanning lines are arranged on one side of the n pairs of first scanning lines, and the n pairs of first scanning lines and the plurality of pairs of second scanning lines are sequenced according to a preset sequence; a plurality of data lines are arranged along the column direction; the plurality of pixel units are arranged between each pair of second scanning lines and are arranged in a matrix; every two adjacent columns of pixel units share one data line, the pixel units sharing one data line in the same row are connected with different scanning lines, wherein n is an odd number larger than 1; the driving method of the display panel is characterized by comprising the following steps of:
simultaneously inputting scanning pulse signals to an Nth row of scanning lines and an (N + 2) th row of scanning lines, wherein N is an integer greater than or equal to 1;
inputting a square wave data signal to the data line to charge the pixel unit connected with the N-th row of scanning lines, and simultaneously pre-charging the pixel unit connected with the (N + 2N) -th row of scanning lines to improve the charging rate of the pixel unit;
the polarity of the square wave data signal is inverted every n scan pulses.
7. The method of claim 6, wherein the charging time of the pixel unit connected to the N +2N row of scan lines in one frame is 2 scan pulses.
8. The method according to claim 6, further comprising a timing controller for controlling the polarity of the square wave data signals to be inverted every n 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.
9. The method for driving a display panel according to claim 6, wherein the polarity of the square-wave data signals on two adjacent data lines is opposite at the same time.
10. The method according to claim 6, wherein the display panel further comprises an active array switch, each pixel unit is connected to a drain of the active array switch, a gate of the active array switch is connected to the scan line, and a source of the active array switch is connected to the data line.
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| CN101414089A (en) * | 2008-11-24 | 2009-04-22 | 上海广电光电子有限公司 | Method for driving liquid crystal display apparatus |
| CN104317086A (en) * | 2014-11-14 | 2015-01-28 | 深圳市华星光电技术有限公司 | Method for driving liquid crystal display panel |
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| JP5071442B2 (en) * | 2009-06-03 | 2012-11-14 | セイコーエプソン株式会社 | Liquid crystal display device, control method, and electronic apparatus |
| TWI437535B (en) * | 2011-12-16 | 2014-05-11 | Au Optronics Corp | Driving method of pixel circuit |
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| CN104317086A (en) * | 2014-11-14 | 2015-01-28 | 深圳市华星光电技术有限公司 | Method for driving liquid crystal display panel |
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