CN111916034A - Display device and driving method thereof - Google Patents
Display device and driving method thereof Download PDFInfo
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- CN111916034A CN111916034A CN202010837291.5A CN202010837291A CN111916034A CN 111916034 A CN111916034 A CN 111916034A CN 202010837291 A CN202010837291 A CN 202010837291A CN 111916034 A CN111916034 A CN 111916034A
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
Abstract
The application discloses a display device and a driving method thereof. The driving method comprises the following steps that a plurality of groups of sub-pixels of a display panel of the display device are respectively and electrically connected with a plurality of groups of gate lines and a plurality of data lines, each group of gate lines respectively drives a corresponding row of the plurality of groups of sub-pixels, a first gate line of each group of gate lines is respectively and electrically connected with one of the same row of the plurality of groups of sub-pixels, a second gate line of each group of gate lines is respectively and electrically connected with the other one of the same row of the plurality of groups of sub-pixels, and: when one frame of the two adjacent frames is used, a scanning signal is sequentially transmitted to the gate line of each group by the sequence of the first gate line and the second gate line, and when the other frame of the two adjacent frames is used, the scanning signal is sequentially transmitted to the gate line of each group by the sequence of the second gate line and the first gate line. The application can solve the problems of bright and dark lines or grids.
Description
Technical Field
The present disclosure relates to a display device and a driving method thereof, and more particularly, to a display device with a Dual-gate driving structure and a driving method thereof.
Background
With the progress of technology, flat panel display devices have been widely used in various fields, especially liquid crystal display devices, and have superior characteristics of being light and thin, low power consumption and being non-radiative, so that they have gradually replaced the conventional cathode ray tube display devices and have been applied to various electronic products, such as mobile phones, portable multimedia devices, notebook computers, liquid crystal televisions and liquid crystal screens.
In order to reduce the cost and improve the competitiveness, a dual-gate (dual-gate) driving architecture liquid crystal display panel is developed. In the display panel with the dual-gate driving architecture, two adjacent gate lines are used for simultaneously driving a row of pixels, for example, an odd-numbered row of gate lines is used for driving odd-numbered sub-pixels, and an even-numbered row of gate lines is used for driving even-numbered sub-pixels, so that half of the consumption of a data driving ic (source ic) is saved by doubling the number of the gate lines, and the purpose of reducing the cost is achieved. However, the dual gate driving technique also has some problems, in which the time for writing the data voltage into the pixel is reduced to half of the original time with the multiplication of the gate lines, so that the driving of one data line from positive polarity to positive polarity or from negative polarity to negative polarity can satisfy the writing time of the liquid crystal, but the driving from positive polarity to negative polarity or from negative polarity to positive polarity has the phenomenon that the pixel voltage is not full, and the problem of bright and dark lines or grids of the picture is caused.
Disclosure of Invention
In view of the deficiencies of the prior art, the inventors have developed the present application. The present disclosure is directed to a display device and a driving method thereof, which can solve the problem of bright and dark lines or grids caused by a dual-gate driving structure.
The application provides a driving method of a display device, the display device comprises a display panel, the display panel comprises a plurality of groups of grid lines, a plurality of data lines and a plurality of groups of sub-pixels, the plurality of groups of sub-pixels are respectively and electrically connected with the plurality of groups of grid lines and the plurality of data lines, the grid lines of each group respectively drive the plurality of groups of sub-pixels of corresponding rows, the grid lines of each group respectively have a first grid line and a second grid line in sequence, the first grid lines are respectively and electrically connected with one of the plurality of groups of sub-pixels of the same row, and the second grid lines are respectively and electrically connected with the other of the plurality of groups of sub. The driving method comprises the following steps: when one frame of the two adjacent frames is used, a scanning signal is sequentially transmitted to the gate line of each group by the sequence of the first gate line and the second gate line, and when the other frame of the two adjacent frames is used, the scanning signal is sequentially transmitted to the gate line of each group by the sequence of the second gate line and the first gate line.
In one embodiment, a data signal is output through the data line in a dot inversion mode to drive the sub-pixels during two adjacent frames.
In one embodiment, the number of the sub-pixels in each group is 2, and the polarities of the voltages appearing in the sub-pixels in each group are the same.
In one embodiment, the sub-pixels of each group are electrically connected to the same data line.
In one embodiment, the display panel is a liquid crystal panel with a dual gate driving structure.
The present application further provides a display device including a display panel and a driving circuit. The display panel comprises a plurality of groups of gate lines, a plurality of data lines and a plurality of groups of sub-pixels, wherein the plurality of groups of sub-pixels are respectively and electrically connected with the plurality of groups of gate lines and the plurality of data lines, each group of gate lines respectively drives the plurality of groups of sub-pixels in a corresponding row, each group of gate lines respectively has a first gate line and a second gate line in sequence, the first gate lines are respectively and electrically connected with one of the plurality of groups of sub-pixels in the same row, and the second gate lines are respectively and electrically connected with the other of the plurality of groups of sub-. The driving circuit outputs a scanning signal to drive a plurality of groups of sub-pixels of the display panel through a plurality of groups of gate lines; wherein, when one frame of the two adjacent frames is in the adjacent frame, the scanning signals are sequentially transmitted to the gate lines of each group by the sequence of the first gate lines and the second gate lines, and when the other frame of the two adjacent frames is in the adjacent frame, the scanning signals are sequentially transmitted to the gate lines of each group by the sequence of the second gate lines and the first gate lines.
In addition, the present application further provides a driving method of a display device, the display device includes a display panel, the display panel includes a plurality of gate lines, a plurality of data lines and a plurality of sub-pixels, the plurality of sub-pixels are electrically connected to the plurality of gate lines and the plurality of data lines, each group of gate lines drives the plurality of sub-pixels in the corresponding row, each group of gate lines has a first gate line and a second gate line in sequence, the first gate line is electrically connected to one of the plurality of sub-pixels in the same row, the second gate line is electrically connected to another of the plurality of sub-pixels in the same row, each group of sub-pixels is electrically connected to the same data line, the driving method includes: in one frame of two adjacent frames, a scanning signal is transmitted to the grid line of each group in sequence by the first grid line and the second grid line, in the other frame of two adjacent frames, the scanning signal is transmitted to the grid line of each group in sequence by the second grid line and the first grid line, and in the two adjacent frames, a data signal is output by the data line in a dot inversion mode to drive the sub-pixels.
In summary, in the display device and the driving method thereof of the present application, the scanning signal is sequentially transmitted to the gate line of each group in the order of the first gate line and the second gate line in one of two adjacent frames, and the scanning signal is sequentially transmitted to the gate line of each group in the order of the second gate line and the first gate line in the other one of the two adjacent frames. Therefore, the display device can solve the problem of bright and dark lines or grids caused by a double-grid structure through the driving mode, so that the display of the display panel is more uniform, and the optical quality of the display panel is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1A is a functional block diagram of a display device according to an embodiment of the present application.
Fig. 1B is a flowchart illustrating a driving method of a display device according to an embodiment of the present disclosure.
FIG. 2A and FIG. 2B are schematic diagrams illustrating a display panel, a gate line and a data line of a display device according to an embodiment of the invention
Fig. 3A and 3B respectively show driving signals of the gate lines and the data lines for one frame time.
Fig. 4 and 5 are schematic connection diagrams of a display panel, a gate line and a data line of a display device according to different embodiments of the present disclosure.
Detailed Description
Specific structural and functional details disclosed herein are merely representative and are provided for purposes of describing example embodiments of the present application. This application may, however, be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, it is to be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Hereinafter, a display device and a driving method thereof according to preferred embodiments of the present application will be described with reference to the accompanying drawings, in which like elements will be described with like reference numerals.
Fig. 1A is a functional block diagram of a display device 1 according to an embodiment of the present application, and fig. 1B is a flowchart of a driving method of a display device according to an embodiment of the present application.
As shown in fig. 1A, the display device 1 of the present embodiment is a liquid crystal display device, and includes a display panel 11 and a driving circuit 12. The display panel 11 may include a plurality of gate lines (G1, G2, …), a plurality of data lines (S1, S2, S3, …), and a plurality of Sub-pixels (Sub-pixels), the plurality of gate lines and the plurality of data lines are alternately disposed to define areas of the plurality of Sub-pixels, and the plurality of Sub-pixels are respectively and electrically connected to the plurality of gate lines and the plurality of data lines.
The driving circuit 12 is electrically connected to the display panel 11 and can drive the display panel 11 to display images. The driving circuit 12 of the present embodiment may include a scan driving unit 121, a data driving unit 122, and a timing control unit 123.
The scan driving unit 121 may be coupled to the display panel 11 through the gate lines, and the data driving unit 122 may be coupled to the display panel 11 through the data lines. The scan driving unit 121 may output scan signals to turn on the gate lines, and the data driving unit 122 may output data signals corresponding to the data lines to drive the corresponding sub-pixels. In addition, the display device 1 may further include a timing control unit 123, and the timing control unit 123 may transmit a vertical synchronization signal and a horizontal synchronization signal to the scan driving unit 121, convert a video signal received from an external interface into a data signal for the data driving unit 122, and transmit the data signal and the horizontal synchronization signal to the data driving unit 122. In a frame time (frame time), when the gate lines are respectively turned on by the scan signals, the data driving unit 122 can transmit the data signals corresponding to each row of sub-pixels to the sub-pixels through the data lines, so that the display panel 11 can display images.
Fig. 2A and fig. 2B are schematic diagrams illustrating a display panel, a gate line and a data line of a display device according to an embodiment of the invention. Fig. 2A and 2B show the same connection structure, but show different bright and dark line conditions (the gray background is the dark spot position where the pixel voltage of the sub-pixel P is not saturated). Fig. 2A and 2B show 6 gate lines G1-G6, 6 data lines S1-S6, and three rows of 36 subpixels P as an example, but not limited thereto, and in different embodiments, more gate lines, data lines, and subpixels may be designed according to the actual requirements.
In fig. 2A, the 6 gate lines G1-G6 can be divided into 3 groups, each group having two gate lines (G1, G2), (G3, G4), (G5, G6), and the display panel 11 can have multiple groups of subpixels P, each group having two subpixels P. Here, 2 sub-pixels P in each dotted line of fig. 2A are a group, each row has 6 groups of sub-pixels P, there are 18 groups, the sub-pixels P in each group are respectively electrically connected to the same data line, and the gate lines in each group can respectively drive the 6 groups of sub-pixels P in the corresponding row. Since the sub-pixels P of each group are electrically connected to the same data line, the voltage polarities of the sub-pixels P of each group are the same at the same time. In other words, when the data signal is transmitted to the sub-pixels P through the data lines, the voltage polarities of the sub-pixels P in the same group connected to the same data line are both positive or negative.
Specifically, for example, the gate lines G1 and G2 are a first group, which can simultaneously drive 6 groups of sub-pixels P of a first row (the sub-pixels P of each group are electrically connected to the same data line respectively); the gate lines G3, G4 are a second group, which can simultaneously drive the 6 groups of sub-pixels P of the second row; the gate lines G5, G6 are a third group, which can simultaneously drive the 6 groups of subpixels P of the third row, and so on. Therefore, the display panel 1 of the present embodiment is a liquid crystal display panel with a dual gate driving architecture.
Each group of gate lines respectively has two gate lines which are a first gate line and a second gate line in sequence, the first gate line is electrically connected with one of the sub-pixels P in the same row, and the second gate line is electrically connected with the other of the sub-pixels P in the same row. For example, the odd-numbered gate lines may be responsible for connecting and driving the odd-numbered sub-pixels P of the same row, and the even-numbered gate lines may be responsible for connecting and driving the even-numbered sub-pixels P of the same row, or vice versa.
In the first group of gate lines of the present embodiment, the first gate line (gate line G1) can be respectively connected to the left sub-pixels P of the first row and the right sub-pixels P of the second row (gate line G2); in addition, in the second group of gate lines, the first gate line (gate line G3) may be respectively connected to the left subpixels P of each group of the second row, and the second gate line (gate line G4) may be respectively connected to the right subpixels P of each group of the second row; in addition, among the third group of gate lines, the first gate line (gate line G5) may be connected to the left sub-pixels P of the third row group, respectively, and the second gate line (gate line G6) may be connected to the right sub-pixels P of the third row group, respectively.
Fig. 3A and 3B respectively show driving signals of the gate lines and the data lines for one frame time. Referring to fig. 3A, in each frame time and under the dual-gate structure of fig. 2A, if the scan driving unit 121 of the driving circuit 12 sequentially turns on the gate lines G1 to G6 (turns on the corresponding TFTs) according to the timing sequence of fig. 3A, and the data driving unit 122 transmits the data signal corresponding to each row of the sub-pixels P to each sub-pixel P through the data lines S1 to S6, the sub-pixels P of the display panel 11 may generate a bright-dark line problem or a grid problem.
Specifically, taking the data line S1 of fig. 2A (the same applies to the data lines S3 and S6), when the gate line G1 is turned on to charge the left-side subpixels P of the first row connected to the gate line G1 first, and then the gate line G2 is turned on in sequence to charge the right-side subpixels P of the first row connected to the gate line G2, the same polarities (+) of the subpixels P connected to the gate lines G1 and G2 and the data line S1 make it easier to charge the right-side subpixels P of the first row to the corresponding potentials; then, the gate line G3 is turned on to charge the left sub-pixel P of each group in the second row connected to the gate line G3, and since the sub-pixels P connected to the gate lines G2 and G3 have different polarities, the left sub-pixel P of each group connected to the gate line G3 is less likely to be charged to a corresponding potential, and the luminance of the sub-pixel P connected to the gate line G3 is lower than that of the sub-pixel P connected to the gate line G2, so that the data line S1 forms a dark dot at the sub-pixel P connected to the gate line G1 and the gate line G3, and forms a bright dot at the sub-pixel P connected to the gate line G2 and the gate line G4. The other sub-pixels P are the same in reason, and therefore form dark lines as shown by the hatching in fig. 2A, if not changed, such a scanning manner will make the positions of the sub-pixels P that are not charged and unsaturated always appear at the same positions of the picture, so that the picture of the whole display panel 11 forms bright and dark lines visually, and the optical quality of the display panel 11 is reduced.
In order to solve the problem of bright and dark lines or grid, the driving circuit 12 of the present embodiment drives the display panel 11 by the driving method of fig. 1B (step S01). Referring to fig. 1B in conjunction with fig. 2A to 3B, in fig. 1B, step S01 is: when one frame of the two adjacent frames is used, a scanning signal is sequentially transmitted to the gate line of each group by the sequence of the first gate line and the second gate line, and when the other frame of the two adjacent frames is used, the scanning signal is sequentially transmitted to the gate line of each group by the sequence of the second gate line and the first gate line.
As shown in fig. 3A, the two adjacent frames are, for example, an nth frame Fn and an n +1 th frame (Fn + 1). In the nth frame Fn, the scan driving unit 121 is sequentially turned on in the order of the gate lines G1, G2, G3, G4, G5, and G6, so that the corresponding data signals can be transmitted to the subpixels P through the data lines S1 to S6. Therefore, as described above, the data line S1 forms a dark spot at the sub-pixel P connected to the gate line G1 and the gate line G3, and forms a bright spot at the sub-pixel P connected to the gate line G2 and the gate line G4, as shown in fig. 2A. The same applies to the other subpixels P connected to the data lines S2 to S6.
In addition, in the (n +1) th frame (Fn +1), the scanning signals are sequentially transmitted to the gate lines of each group in the order of the second gate line and the first gate line. Therefore, as shown in fig. 3B, at the (n +1) th frame (Fn +1), the scan driving unit 121 is sequentially turned on in the order of the gate lines G2, G1, G4, G3, G6, and G5, so that the corresponding data signals can be transmitted to the subpixels P through the data lines S1 to S6. Therefore, as shown in fig. 2B, the data line S1 will be made to form a bright dot at the sub-pixel P connected by the gate line G1 and the gate line G3, and a dark dot at the sub-pixel P connected by the gate line G2 and the gate line G4.
For example, when a first frame (n is 1), the scan driving unit 121 is sequentially turned on in the order of the gate lines G1, G2, G3, G4, G5, and G6 so that the corresponding data signals can be transmitted to the subpixel P through the data lines S1 to S6, and when a second frame, the scan driving unit 121 is sequentially turned on in the order of the gate lines G2, G1, G4, G3, G6, and G5 so that the corresponding data signals can be transmitted to the subpixel P through the data lines S1 to S6; in the third frame (n is 3), the scan driving unit 121 is sequentially turned on in the order of the gate lines G1, G2, G3, G4, G5, and G6 so that the corresponding data signals can be transmitted to the subpixel P through the data lines S1 to S6, in the fourth frame, the scan driving unit 121 is sequentially turned on in the order of the gate lines G2, G1, G4, G3, G6, and G5 so that the corresponding data signals can be transmitted to the subpixel P through the data lines S1 to S6, and so on. Or, when the first frame (n is 1), the scan driving unit 121 is sequentially turned on in the order of the gate lines G2, G1, G4, G3, G6, and G5 so that the corresponding data signals can be transmitted to the subpixel P through the data lines S1 to S6, and when the second frame, the scan driving unit 121 is sequentially turned on in the order of the gate lines G1, G2, G3, G4, G5, and G6 so that the corresponding data signals can be transmitted to the subpixel P through the data lines S1 to S6; in the third frame (n is 3), the scan driving unit 121 is sequentially turned on in the order of the gate lines G2, G1, G4, G3, G6, and G5 so that the corresponding data signals can be transmitted to the subpixel P through the data lines S1 to S6, in the fourth frame, the scan driving unit 121 is sequentially turned on in the order of the gate lines G1, G2, G3, G4, G5, and G6 so that the corresponding data signals can be transmitted to the subpixel P through the data lines S1 to S6, and so on.
In the present embodiment, in the two adjacent frames (the nth frame Fn and the (n +1) th frame Fn +1), the data lines output the data signals in a dot inversion (dot inversion) mode to drive the sub-pixels P, so that the sub-pixels P of the display screen can exhibit a 2-column polarity inversion (2-line inversion) display effect, as shown in fig. 2A and 2B.
In the driving method of the display panel 11 of the present embodiment, the scanning signals are sequentially transmitted to each group of gate lines in the order of the first gate line and the second gate line when one of the two adjacent frames is selected, in the other frame of the two adjacent frames, the scanning signals are sequentially transmitted to the gate lines of each group by the second gate line and the first gate line, so that in the one frame of the two adjacent frames, the data line S1 forms a dark spot on the sub-pixel P connected with the gate line G1 and the gate line G3, and bright spots are formed at the sub-pixels P connected by the gate lines G2 and G4, and further, at the other frame of the two adjacent frames, the data line S1 forms a bright point at the sub-pixel P to which the gate line G1 and the gate line G3 are connected, and a dark spot is formed at the sub-pixel P connected to the gate line G2 and the gate line G4, and thus, the positions where the dark spots occur in the adjacent two frames are opposite. In the conventional display, the display frame is refreshed at a rate of 60 frames per second, so that each sub-pixel P is switched between bright and dark at a frequency of 30Hz, and due to the persistence of vision effect of human eyes, the frames of two adjacent frames are not separated in such a short time, so that the display of the display panel 11 can be more uniform, and the optical quality can be improved.
Particularly, the invention is not limited to the odd frames transmitting the scan signals to the gate lines of each group in the order of G1, G2, G3 and G4 …, and the even frames transmitting the scan signals to the gate lines of each group in the order of G2, G1, G4 and G3 …. Of course, even frames may transmit scan signals to the gate lines of each group in the order of G1, G2, G3, G4 …, while odd frames may transmit scan signals to the gate lines of each group in the order of G2, G1, G4, G3 ….
The driving method can also be applied to display devices with double-gate driving architectures of different connection modes. Fig. 4 and fig. 5 are schematic diagrams respectively illustrating connection between a display panel and gate lines and data lines of a display device according to different embodiments of the present application (gray background is a dark spot position where the pixel voltage of the sub-pixel P is not saturated).
As shown in fig. 4, the main difference from the connection manner of fig. 2A is that in the first group of gate lines in the present embodiment, the first gate line (gate line G1) is connected to the left sub-pixel P of each group in the first row, and the second gate line (gate line G2) is connected to the right sub-pixel P of each group in the first row; in addition, among the second group of gate lines, the first gate line (gate line G3) is connected to the right sub-pixel P of each group of the second row, respectively, and the second gate line (gate line G4) is connected to the left sub-pixel P of each group of the second row, respectively; in addition, in the third group of gate lines, the first gate line (gate line G5) is connected to the left sub-pixel P of the third row group, respectively, and the second gate line (gate line G6) is connected to the right sub-pixel P of the third row group, respectively, and so on.
As shown in fig. 5, the main difference from the connection manner of fig. 2A is that in the first group of gate lines, the first gate line (gate line G1) is connected to the right sub-pixel P of each group in the first row, and the second gate line (gate line G2) is connected to the left sub-pixel P of each group in the first row; in addition, among the second group of gate lines, the first gate line (gate line G3) is connected to the right sub-pixel P of each group of the second row, respectively, and the second gate line (gate line G4) is connected to the left sub-pixel P of each group of the second row, respectively; in addition, in the third group of gate lines, the first gate line (gate line G5) is connected to the right sub-pixel P of the third row group, respectively, and the second gate line (gate line G6) is connected to the left sub-pixel P of the third row group, respectively, and so on.
In addition, the driving method of fig. 4 and 5 can refer to the above, and will not be described more herein. The connection manner of the dual gate architecture of fig. 2A, fig. 4 and fig. 5 is only an example and is not intended to limit the present application.
In summary, in the display device and the driving method thereof of the present application, the scanning signals are sequentially transmitted to the gate lines of each group in the order of the first gate line and the second gate line in one of the two adjacent frames, and the scanning signals are sequentially transmitted to the gate lines of each group in the order of the second gate line and the first gate line in the other of the two adjacent frames. Therefore, the display device can solve the problem of bright and dark lines or grids caused by a double-grid structure through the driving mode, so that the display of the display panel is more uniform, and the optical quality of the display panel is improved.
The foregoing is by way of example only, and not limiting. Any equivalent modifications or variations without departing from the spirit and scope of the present application should be included in the scope of the claims.
Claims (10)
1. A driving method of a display device, the display device including a display panel, the display panel including a plurality of gate lines, a plurality of data lines and a plurality of sub-pixels, the plurality of sub-pixels being electrically connected to the plurality of gate lines and the plurality of data lines, the gate lines of each of the groups respectively driving the plurality of sub-pixels of a corresponding row, the gate lines of each of the groups respectively having a first gate line and a second gate line in sequence, the first gate line being electrically connected to one of the plurality of sub-pixels of a same row, the second gate line being electrically connected to another one of the plurality of sub-pixels of a same row, the driving method comprising:
and sequentially transmitting a scanning signal to the gate line of each group in the sequence of the first gate line and the second gate line in one of two adjacent frames, and sequentially transmitting the scanning signal to the gate line of each group in the sequence of the second gate line and the first gate line in the other of the two adjacent frames.
2. The driving method according to claim 1, wherein a data signal is output through the data line in a dot inversion mode to drive the sub-pixels during the two adjacent frames.
3. The driving method as claimed in claim 1, wherein the number of the sub-pixels of each of the groups is 2, and the polarities of the voltages appearing in the sub-pixels of each of the groups are the same.
4. The driving method according to claim 1, wherein the sub-pixels of each of the groups are electrically connected to the same data line, respectively.
5. The driving method according to claim 1, wherein the display panel is a liquid crystal panel of a dual gate driving architecture.
6. A display device, comprising:
a display panel, including multiple gate lines, multiple data lines and multiple sub-pixels, where the multiple sub-pixels are electrically connected to the multiple gate lines and the multiple data lines, the gate lines of each group respectively drive the multiple sub-pixels of the corresponding row, the gate lines of each group respectively have a first gate line and a second gate line in sequence, the first gate line is electrically connected to one of the multiple sub-pixels of the same row, and the second gate line is electrically connected to another of the multiple sub-pixels of the same row; and
a driving circuit for outputting a scanning signal to drive the plurality of groups of sub-pixels of the display panel through the plurality of groups of gate lines;
wherein, in one of two adjacent frames, the scanning signals are sequentially transmitted to the gate lines of each group in the order of the first gate lines and the second gate lines, and in the other of the two adjacent frames, the scanning signals are sequentially transmitted to the gate lines of each group in the order of the second gate lines and the first gate lines.
7. The display device according to claim 6, wherein the driving circuit further outputs a data signal to drive the sub-pixels in a dot inversion mode through the data lines during the two adjacent frames.
8. The display device of claim 6, wherein the number of the sub-pixels of each of the groups is 2, and the polarities of the voltages appearing in the sub-pixels of each of the groups are the same.
9. The display device according to claim 6, wherein the sub-pixels of each of the groups are electrically connected to the same one of the data lines, respectively.
10. A driving method of a display device, the display device including a display panel, the display panel including a plurality of gate lines, a plurality of data lines and a plurality of sub-pixels, the plurality of sub-pixels being electrically connected to the plurality of gate lines and the plurality of data lines, the gate lines of each of the groups driving the plurality of sub-pixels of a corresponding row, the gate lines of each of the groups having a first gate line and a second gate line in sequence, respectively, the first gate line being electrically connected to one of the plurality of sub-pixels of a same row, the second gate line being electrically connected to another one of the plurality of sub-pixels of a same row, respectively, the sub-pixels of each of the plurality of groups being electrically connected to a same data line, the driving method comprising:
and sequentially transmitting a scanning signal to the gate line of each group in the sequence of the first gate line and the second gate line in one frame of two adjacent frames, sequentially transmitting the scanning signal to the gate line of each group in the sequence of the second gate line and the first gate line in the other frame of the two adjacent frames, and outputting a data signal to drive the sub-pixels in a dot inversion mode through the data lines in the two adjacent frames.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010837291.5A CN111916034A (en) | 2020-08-19 | 2020-08-19 | Display device and driving method thereof |
| PCT/CN2020/123133 WO2022036847A1 (en) | 2020-08-19 | 2020-10-23 | Display device and driving method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010837291.5A CN111916034A (en) | 2020-08-19 | 2020-08-19 | Display device and driving method thereof |
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| CN111916034A true CN111916034A (en) | 2020-11-10 |
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| WO (1) | WO2022036847A1 (en) |
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| CN113920919A (en) * | 2021-10-26 | 2022-01-11 | 深圳市华星光电半导体显示技术有限公司 | Display panel |
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