CN111899699A - Display device and driving method thereof - Google Patents
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- CN111899699A CN111899699A CN202010836737.2A CN202010836737A CN111899699A CN 111899699 A CN111899699 A CN 111899699A CN 202010836737 A CN202010836737 A CN 202010836737A CN 111899699 A CN111899699 A CN 111899699A
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- 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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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Abstract
The application discloses a display device and a driving method thereof. The display panel of the display device is characterized in that a plurality of groups of sub-pixels are respectively and electrically connected with a plurality of groups of gate lines and a plurality of data lines, the gate lines of each group respectively drive the sub-pixels of the corresponding row, the gate lines of each group are respectively provided with two gate lines in sequence, the two gate lines are respectively and electrically connected with the sub-pixels of the same row, and the number of the gate lines is m, wherein m is a positive integer greater than or equal to 2. The driving method comprises the following steps: in one frame of two adjacent frames, a scanning signal is transmitted to the grid line in sequence from the first strip to the mth strip of the grid line, and in the other frame of two adjacent frames, the scanning signal is transmitted to the grid line in sequence from the mth strip to the first strip of the grid 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 recent years, display panels of dual-gate (dual-gate) driving architecture have become popular among panel manufacturers. In the display panel with the double-gate driving structure, half of the consumption of a data driving IC (source IC) is saved by doubling the number of the gate lines, so that the purpose of reducing the cost is achieved. However, with the multiplication of the gate lines, the time for writing the data voltage into the pixels is reduced to half of the original time, and the 1 plus 2-column polarity inversion (1+2line inversion) driving method is used, 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 can cause the phenomenon that the pixel voltage is not fully charged, 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 display panel is provided with the plurality of groups of sub-pixels, each group of grid lines respectively drives the plurality of groups of sub-pixels of corresponding lines, each group of grid lines respectively has two grid lines in sequence, the two grid lines are respectively and electrically connected with the sub-pixels of the plurality of groups of the same line, the grid lines are m in total, wherein m is a positive integer greater than or equal to: in one frame of two adjacent frames, a scanning signal is transmitted to the grid line in sequence from the first strip to the mth strip of the grid line, and in the other frame of two adjacent frames, the scanning signal is transmitted to the grid line in sequence from the mth strip to the first strip of the grid 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 subpixels of each said group is 2, and the voltages exhibited by the subpixels of each said group are of opposite polarity.
In one embodiment, the sub-pixels of each of the groups are electrically connected to the data lines of different strips, respectively.
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 includes a plurality of groups of gate lines, a plurality of data lines, and a plurality of groups of sub-pixels. The multiple groups of sub-pixels are respectively and electrically connected with the multiple groups of gate lines and the multiple data lines, the gate lines of each group respectively drive the multiple groups of sub-pixels of the corresponding row, the gate lines of each group respectively have two gate lines in sequence, the two gate lines are respectively and electrically connected with the multiple groups of sub-pixels of the same row, and the number of the gate lines is m, wherein m is a positive integer greater than or equal to 2. 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, in one frame of two adjacent frames, a scanning signal is transmitted to the grid line in sequence from the first strip to the mth strip of the grid line, and in the other frame of two adjacent frames, the scanning signal is transmitted to the grid line in sequence from the mth strip to the first strip of the grid line.
In one embodiment, one of the two gate lines of each group is electrically connected to one of the sub-pixels of the same row and the plurality of groups, and the other of the two gate lines of each group is electrically connected to the other of the sub-pixels of the same row and the plurality of groups.
In one embodiment, one of the two gate lines of each group is electrically connected to a part of the groups of sub-pixels in the same row, and the other of the two gate lines of each group is electrically connected to another part of the groups of sub-pixels in the same row.
In one embodiment, the driving circuit further outputs a data signal to drive the sub-pixels in a dot inversion mode through the data lines during two adjacent frames.
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, the display panel has a plurality of sub-pixels, each group of gate lines drives the plurality of sub-pixels of the corresponding row, each group of sub-pixels is electrically connected to different data lines, each group of gate lines has two gate lines in sequence, each two gate lines is electrically connected to the plurality of sub-pixels of the same row, the gate lines have m number, m is a positive integer greater than or equal to 2, the driving method includes: in one frame of two adjacent frames, a scanning signal is transmitted to the grid line in sequence from the first strip to the mth strip of the grid line, in the other frame of two adjacent frames, the scanning signal is transmitted to the grid line in sequence from the mth strip to the first strip of the 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-image.
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 in the order from the first to the mth of the gate lines in one of the two adjacent frames, and the scanning signals are sequentially transmitted to the gate lines in the reverse order from the mth to the first of the gate lines in the other of the two adjacent frames. Therefore, the display device with the double-gate driving structure enables the display of the panel to be uniform through the fact that the scanning sequence of the gate lines of two adjacent frames is opposite, so that the problem of bright and dark lines or grids caused by the double-gate structure can be solved, and the optical quality of the display device 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 to 8 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 sequentially turned on by the scan signals, the data driving unit 122 transmits 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, 7 data lines S1-S7, and three rows of 39 sub-pixels P as an example, but not limited thereto, and in different embodiments, more gate lines, data lines, and sub-pixels can 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, and each row has 6 groups of sub-pixels P plus 1 sub-pixel P (13 sub-pixels P in total), and there are 18 groups of sub-pixels plus 3 sub-pixels (39 sub-pixels in total). In this embodiment, the 2 sub-pixels P in each group are electrically connected to the data lines of different adjacent rows, and the gate lines in each group can respectively drive the sub-pixels P in the corresponding row. Since each group of sub-pixels P of this embodiment is electrically connected to the data lines of different adjacent strips, when the data lines output data signals to drive the sub-pixels P in a dot inversion (dot inversion) mode, the sub-pixels P of the same group have opposite voltage polarities (one is positive and one is negative).
Specifically, for example, the gate lines G1, G2 are a first group, which can simultaneously drive the 6 groups of sub-pixels P (and the last sub-pixel P) of the first row; the gate lines G3, G4 are a second group, which can simultaneously drive the 6 groups of sub-pixels P (and the last sub-pixel P) of the second row; the gate lines G5, G6 are a third group, which can simultaneously drive the 6 sub-pixels P (and the last sub-pixel 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.
In this embodiment, each group of gate lines has two gate lines in sequence (the two gate lines are electrically connected to the groups of sub-pixels P in the same row, respectively), wherein one of the two gate lines is electrically connected to one of the groups of sub-pixels P in the same row, respectively, and the other of the two gate lines is electrically connected to the other of the groups of sub-pixels P in the same row, respectively. As shown in fig. 2A, in the first group of gate lines of the present embodiment, the gate line G1 is connected to the right sub-pixel P of each group of the first row, and the gate line G2 is connected to the left sub-pixel P of each group of the first row; in addition, in the second group of gate lines, the gate line G3 is connected to the right sub-pixel P of each group of the second row, and the gate line G4 is connected to the left sub-pixel P of each group of the second row; in addition, among the third group of gate lines, the gate line G5 connects the right sub-pixels P of the third row group, respectively, and the gate line G6 connects the left 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, at 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 S7, the sub-pixels P of the display panel 11 may generate bright and dark line or grid problems.
Specifically, taking the data lines S1 and S2 (the same applies to other data lines) of fig. 2A as an example, when the gate line G1 is turned on to charge the right-side subpixels P of the first row connected thereto (for example, negative polarity), and then the gate line G2 is sequentially turned on to charge the left-side subpixels P of the first row connected thereto, so that the subpixels P of the same group of the first row connected to the gate lines G1 and G2 and the data lines S1 and S2 are opposite in polarity (+, -), and then the gate line G3 is turned on to charge the right-side subpixels P of the second row connected thereto (+), so that the right-side subpixels P of the second row connected to the gate line G3 are less likely to be charged to the potential of the corresponding gate line due to the different polarities of the subpixels P connected to the gate lines G1 and G3, and thus the subpixels P connected to G3 are less likely to be charged than the subpixels P connected to G2, the data line S2 forms a dark dot at the sub-pixel P connected to the gate line G1 and gate line G3, and the data line S1 forms a bright dot at the sub-pixel P connected to the gate line G2 and gate line G4. The other sub-pixels P are the same thing, and thus form dark lines as shown by the hatching in fig. 2A. In other words, if the scanning signals are always transmitted to the corresponding gate lines in the same sequence as in fig. 3A (for example, from top to bottom or from bottom to top), and the sub-pixel electrodes are charged according to the polarity of the data signals transmitted by the data lines, the sub-pixel P with non-charging will always appear at the same position of the picture, so that the light and dark stripes or the grid phenomenon appear on the picture, 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, assuming that there are m gate lines (m is a positive integer greater than or equal to 2) of the display panel 11, in fig. 1B, step S01 is: in one frame of two adjacent frames, a scanning signal is transmitted to the grid line in sequence from the first strip to the mth strip of the grid line, and in the other frame of two adjacent frames, the scanning signal is transmitted to the grid line in sequence from the mth strip to the first strip of the grid 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 S7. Therefore, as shown in fig. 2A, the data line S2 forms a dark dot in the sub-pixel P connected to the gate line G1 and the gate line G3, and the data line S1 forms a bright dot in the sub-pixel P connected to the gate line G2 and the gate line G4. The same applies to the other subpixels P connected to the data lines S3 to S6.
In addition, in the (n +1) th frame (Fn +1), the scanning signals are sequentially transmitted to the gate lines in reverse order from the m-th to the first one of the gate lines. Therefore, as shown in fig. 3B, in the (n +1) th frame (Fn +1), the scan driving unit 121 is sequentially turned on in the order of the gate lines G6, G5, G4, G3, G2, and G1, so that the corresponding data signals can be transmitted to the subpixels P of each group through the data lines S1 to S7. Therefore, as shown in fig. 2B, the data line S1 forms a dark dot in the sub-pixel P connected to the gate line G2 and the gate line G4, and the data line S2 forms a bright dot in the sub-pixel P connected to the gate line G1 and the gate line G3.
For example, in the 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 subpixels P through the data lines S1 to S7, and in the second frame, the scan driving unit 121 is sequentially turned on in the order of the gate lines G6, G5, G4, G3, G2, and G1 so that the corresponding data signals can be transmitted to the subpixels P of each group through the data lines S1 to S7; 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 subpixels P through the data lines S1 to S7, in the fourth frame, the scan driving unit 121 is sequentially turned on in the order of the gate lines G6, G5, G4, G3, G2, and G1 so that the corresponding data signals can be transmitted to the subpixels P of each group through the data lines S1 to S7, 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 G6, G5, G4, G3, G2, and G1 so that the corresponding data signals can be transmitted to the subpixels P through the data lines S1 to S7, 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 subpixels P of each group through the data lines S1 to S7; in the third frame (n is 3), the scan driving unit 121 is sequentially turned on in the order of the gate lines G6, G5, G4, G3, G2, and G1 so that the corresponding data signals can be transmitted to the subpixels P through the data lines S1 to S7, 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 subpixels P of each group through the data lines S1 to S7, 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 the dot inversion mode to drive the sub-pixels P of each group, so that the sub-pixels P of the display screen can exhibit the display effect of 1 plus 2 rows of polarity inversion (1+2line inversion), as shown in fig. 2A and fig. 2B. It should be noted that in step S01 of the present embodiment, the gate lines are opened in a top-down scanning manner and the gate lines are opened in a bottom-up scanning manner, but in different embodiments, the gate lines may be opened in a bottom-up scanning manner and then opened in a top-down scanning manner as long as the scanning order of the gate lines of two adjacent frames is opposite.
In the driving method of the display panel 11 of the present embodiment, the scanning signals are sequentially transmitted to the gate lines in the order from the first to the mth of the gate lines in one of the two adjacent frames, and the scanning signals are sequentially transmitted to the gate lines in the opposite order from the mth to the first of the gate lines in the other of the two adjacent frames, so that the positions of the dark spots of the two adjacent frames in the display image of the display panel 11 of the dual-gate driving architecture are exactly 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, G4 …, Gm, and the even frames driving the scan signals to the gate lines of each group in the order of Gm, Gm-1, … G4, G3, G2, G1. Of course, even frames may transmit scan signals to the gate lines of each group in the order of G1, G2, G3, G4 …, Gm, and odd frames may transmit scan signals to the gate lines of each group in the order of Gm, Gm-1, … G4, G3, G2, G1.
The driving method can also be applied to display devices with double-gate driving architectures of different connection modes. Fig. 4 to 8 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 point 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 this embodiment, one of the two gate lines of each group is electrically connected to a part of the plurality of groups of sub-pixels P in the same row, and the other of the two gate lines of each group is electrically connected to the other part of the plurality of groups of sub-pixels P in the same row. Specifically, in the first group of gate lines, the gate line G1 is connected to the two subpixels P of the even group in the first row, and the gate line G2 is connected to the two subpixels P of the odd group (even or odd is counted from left to right); in addition, in the second group of gate lines, the gate line G3 is respectively connected to the two subpixels P in the even group of the second row, and the gate line G4 is respectively connected to the two subpixels P in the odd group; in addition, in the third group of gate lines, the gate line G5 is connected to the two subpixels P of the third row even group, the gate line G6 is connected to the two subpixels P of the odd group, and so on.
As shown in fig. 5, the main difference from the connection method of fig. 2A is that the connection method of the gate line and the sub-pixel P in this embodiment is a mixture of fig. 2A and fig. 4. Specifically, in the first group of gate lines, the gate line G1 connects the first row of the right sub-pixel P of the first and fourth groups and the third and sixth groups of two sub-pixels P, respectively (even or odd numbers are counted from left to right), and the gate line G2 connects the first and fourth groups of the left sub-pixel P and the second and fifth groups of two sub-pixels P, respectively; in addition, in the second group of gate lines, the gate line G3 connects the second row of the first and fourth groups of right-side sub-pixels P and the third and sixth groups of two sub-pixels P, respectively (even or odd numbers are counted from left to right), and the gate line G4 connects the first and fourth groups of left-side sub-pixels P and the second and fifth groups of two sub-pixels P, respectively; in addition, in the third group of gate lines, the gate line G5 connects the third row of the right sub-pixel P of the first and fourth groups and the third and sixth groups of two sub-pixels P (even or odd is counted from left to right), and the gate line G6 connects the first and fourth groups of the left sub-pixel P and the second and fifth groups of two sub-pixels P, and so on.
As shown in fig. 6, the main difference from the connection method of fig. 2A is that the connection method of the gate line and the subpixel P in this embodiment is a mixture of fig. 2A and fig. 4. Specifically, in the first group of gate lines, the gate line G1 connects the first row of the first and fourth groups of the left sub-pixels P and the second and fifth groups of the two sub-pixels P, respectively (even or odd is counted from left to right), and the gate line G2 connects the first and fourth groups of the right sub-pixels P and the third and sixth groups of the two sub-pixels P, respectively; in addition, in the second group of gate lines, the gate line G3 connects the first and fourth groups of left sub-pixels P and the second and fifth groups of two sub-pixels P, respectively, in the second row, and the gate line G4 connects the first and fourth groups of right sub-pixels P and the third and sixth groups of two sub-pixels P, respectively; in addition, in the third group of gate lines, the gate line G5 connects the left sub-pixel P of the first and fourth groups and the two sub-pixels P of the second and fifth groups, respectively, in the third row, and the gate line G6 connects the right sub-pixel P of the first and fourth groups and the two sub-pixels P of the third and sixth groups, respectively, and so on.
In addition, as shown in fig. 7, the connection of fig. 7 is similar to that of fig. 2A. Specifically, in the first group of gate lines, the gate line G1 is connected to the right sub-pixel P of each group in the first row, and the gate line G2 is connected to the left sub-pixel P of each group; in addition, in the second group of gate lines, the gate line G3 is connected to the left subpixel P of each group in the second row, and the gate line G4 is connected to the right subpixel P of each group; in addition, in the third group of gate lines, the gate line G5 connects the right sub-pixels P of the third row and the groups, respectively, and the gate line G6 connects the left sub-pixels P of the groups, respectively, and so on.
Otherwise, as shown in fig. 8, it is connected in a similar manner to that of fig. 4. Specifically, in the first group of gate lines, the gate line G1 is respectively connected to the two sub-pixels P of the even group in the first row, and the gate line G2 is respectively connected to the two sub-pixels P of the odd group (the even or odd number is counted from the left side to the right side); in addition, in the second group of gate lines, the gate line G3 is respectively connected to the two subpixels P in the odd group of the second row, and the gate line G4 is respectively connected to the two subpixels P in the even group; in addition, in the third group of gate lines, the gate line G5 is connected to the two subpixels P of the third row even group, the gate line G6 is connected to the two subpixels P of the odd group, and so on.
In addition, the driving method of fig. 4 to 8 can refer to the above description, and will not be further described herein. In addition, the connection manner of the dual gate structures of fig. 2A and fig. 4 to fig. 8 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 scan signals are sequentially transmitted to the gate lines in the order from the first to the mth of the gate lines in one of the two adjacent frames, and the scan signals are sequentially transmitted to the gate lines in the reverse order from the mth to the first of the gate lines in the other of the two adjacent frames. Therefore, the display device with the double-gate driving structure enables the display of the panel to be uniform through the fact that the scanning sequence of the gate lines of two adjacent frames is opposite, so that the problem of bright and dark lines or grids caused by the double-gate structure can be solved, and the optical quality of the display device 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, respectively, 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 two gate lines in sequence, respectively, the two gate lines being electrically connected to the plurality of sub-pixels of the same row, respectively, the gate lines having m gate lines, where m is a positive integer greater than or equal to 2, the driving method comprising:
and sequentially transmitting a scanning signal to the gate line in the order from the first strip to the mth strip of the gate line in one of two adjacent frames, and sequentially transmitting the scanning signal to the gate line in the reverse order from the mth strip to the first strip of the 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 sub-pixels of each of the groups exhibit voltages of opposite polarities.
4. The driving method according to claim 1, wherein the sub-pixels of each of the groups are electrically connected to the data lines of different strips, 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 a plurality of gate lines, a plurality of data lines and a plurality of sub-pixels, wherein the plurality of sub-pixels are electrically connected to the plurality of gate lines and the plurality of data lines, the gate lines of each group respectively drive the plurality of sub-pixels of the corresponding row, the gate lines of each group respectively have two gate lines in sequence, the two gate lines are electrically connected to the plurality of sub-pixels of the same row, the number of the gate lines is m, and m is a positive integer greater than or equal to 2; 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, a scanning signal is sequentially transmitted to the gate line in the order from the first strip to the mth strip of the gate line, and in the other frame, the scanning signal is sequentially transmitted to the gate line in the reverse order from the mth strip to the first strip of the gate line.
7. The display device according to claim 6, wherein one of the two gate lines of each of the groups is electrically connected to one of the sub-pixels of the same row and the groups, and the other of the two gate lines of each of the groups is electrically connected to the other of the sub-pixels of the same row and the groups.
8. The display device according to claim 6, wherein one of the two gate lines of each of the groups is electrically connected to a portion of the sub-pixels of the same row, and the other of the two gate lines of each of the groups is electrically connected to another portion of the sub-pixels of the same row.
9. 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.
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, respectively, the gate lines of each of the groups driving the plurality of sub-pixels of a corresponding row, respectively, the sub-pixels of each of the groups being electrically connected to the data lines of different rows, respectively, the gate lines of each of the groups having two gate lines in sequence, respectively, the two gate lines being electrically connected to the plurality of sub-pixels of the same row, respectively, the gate lines having m total, m being a positive integer greater than or equal to 2, the driving method comprising:
in one frame of two adjacent frames, a scanning signal is transmitted to the grid line in sequence from the first strip to the mth strip of the grid line, in the other frame of the two adjacent frames, the scanning signal is transmitted to the grid line in sequence from the mth strip to the first strip of the 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-image.
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| CN202010836737.2A CN111899699A (en) | 2020-08-19 | 2020-08-19 | Display device and driving method thereof |
| PCT/CN2020/123132 WO2022036846A1 (en) | 2020-08-19 | 2020-10-23 | Display apparatus and driving method therefor |
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| CN202010836737.2A CN111899699A (en) | 2020-08-19 | 2020-08-19 | Display device and driving method thereof |
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