CN107633827B - Display panel driving method and display device - Google Patents

Display panel driving method and display device Download PDF

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CN107633827B
CN107633827B CN201710840788.0A CN201710840788A CN107633827B CN 107633827 B CN107633827 B CN 107633827B CN 201710840788 A CN201710840788 A CN 201710840788A CN 107633827 B CN107633827 B CN 107633827B
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sub
pixel
line voltage
pixels
scanning line
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CN107633827A (en
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胡水秀
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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Priority to PCT/CN2018/095779 priority patent/WO2019052278A1/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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

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  • Crystallography & Structural Chemistry (AREA)
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  • General Physics & Mathematics (AREA)
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  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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Abstract

The invention relates to a driving method of a display panel and a display device. The method comprises the following steps: dividing the first direction sub-pixels into a plurality of pixel groups, wherein each pixel group at least comprises two sub-pixels; inputting different data line voltage signals to adjacent sub-pixels in the first direction sub-pixels; and simultaneously inputting the same scanning line voltage signal to each sub-pixel in each pixel group. The driving method of the display panel and the display device improve the charging efficiency of the sub-pixels, and further improve the picture display quality.

Description

Display panel driving method and display device
Technical Field
The present invention relates to the field of display technologies, and in particular, to a driving method of a display panel and a display device.
Background
Thin Film Transistor Liquid crystal displays (TFT-LCD) are one of the major varieties of flat panel displays, and have become an important display platform in modern IT and video products. The main driving principle of the thin Film transistor liquid crystal display is that a system main board connects a red/green/blue compression signal, a control signal and power with a connector (connector) on a Printed Circuit Board (PCB) through wires, data is processed by a time sequence Controller (TCON Timing Controller) Chip on the PCB and is connected with a display area through a Source electrode driving Chip (S-COF Source-Chip on Film) and a grid electrode driving Chip (G-COF Gate-Chip on Film) through the PCB, and therefore the display obtains required power and signals.
Many thin film transistor liquid crystal displays now employ a tri-gate pixel architecture with three times as many gate scan lines as the normal pixel architecture. When the pixel structure of the three-grid is adopted to charge the pixels, the scanning lines of the grid are opened line by line, and when the picture refreshing frequency f is 60Hz, the charging time of the sub-pixels in each line is 1/60M (M is the number of the grid scanning lines). Since the gate scan line of the tri-gate pixel architecture is three times of that of the general pixel architecture, the charging time of each row of sub-pixels of the tri-gate pixel architecture is three times shorter than that of the general pixel architecture, so the charging efficiency is reduced, and the display quality of the picture is finally reduced.
Disclosure of Invention
In view of the above, it is necessary to provide a method for driving a display panel and a display device, which address the problem of low charging efficiency of sub-pixels per row.
A driving method of a display panel comprises a plurality of pixel units which are arranged in an array mode, wherein each pixel unit comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel which are sequentially arranged along a first direction, and each sub-pixel is electrically connected with a scanning line; the method comprises the following steps:
dividing the first direction sub-pixels into a plurality of pixel groups, wherein each pixel group at least comprises two sub-pixels;
inputting different data line voltage signals to adjacent sub-pixels in the first direction sub-pixels;
and simultaneously inputting the same scanning line voltage signal to each sub-pixel in each pixel group.
In one embodiment, the step of inputting different data line voltage signals to adjacent sub-pixels in the first direction sub-pixels includes:
two groups of data line voltage signals are input to the sub-pixels in the first direction, one group of data line voltage signals drive odd-row sub-pixels in the sub-pixels, and the other group of data line voltage signals drive even-row sub-pixels in the sub-pixels.
In one embodiment, the pixel group includes two adjacent first sub-pixels and second sub-pixels, and the first sub-pixels and the second sub-pixels are any two of red sub-pixels, green sub-pixels and blue sub-pixels.
In one embodiment, the step of inputting different data line voltage signals to adjacent sub-pixels in the first direction sub-pixels includes:
two groups of data line voltage signals are input to the sub-pixels in the first direction, one group of data line voltage signals drive the first sub-pixels in each pixel group, and the other group of data line voltage signals drive the second sub-pixels in each pixel group.
In one embodiment, the step of simultaneously inputting the same scanning line voltage signal to each sub-pixel in each pixel group includes:
and sequentially inputting scanning line voltage signals to each pixel group, and keeping the duration time of the scanning line voltage signals of each pixel group the same.
In one embodiment, the step of sequentially inputting the scanning line voltage signal to each pixel group and keeping the duration of the scanning line voltage signal of each pixel group the same comprises:
judging whether the scanning line voltage signal in each pixel group reaches the preset duration time, if so, closing the scanning line voltage signal in the pixel group, and inputting the scanning line voltage signal to the adjacent pixel group; otherwise, the input of the scanning line voltage signal is continuously maintained.
A display device, comprising:
the display panel comprises a plurality of pixel units which are arranged in an array manner, each pixel unit comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel which are sequentially arranged along a first direction, and each sub-pixel is electrically connected with a scanning line; the first direction sub-pixels are divided into a plurality of pixel groups, and each pixel group at least comprises two sub-pixels;
and the driving module is used for inputting different data line voltage signals to adjacent sub-pixels in the first-direction sub-pixels and simultaneously inputting the same scanning line voltage signal to each sub-pixel in each pixel group.
In one embodiment, the driving module is configured to input two sets of data line voltage signals to the subpixels in the first direction, so that one set of data line voltage signals drives odd-numbered rows of the subpixels, and the other set of data line voltage signals drives even-numbered rows of the subpixels.
In one embodiment, the driving module is configured to sequentially input the scan line voltage signals to each pixel group, and keep the durations of the scan line voltage signals of each pixel group the same.
A driving method of a display panel comprises a plurality of pixel units which are arranged in an array mode, wherein each pixel unit comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel which are sequentially arranged along a first direction, and each sub-pixel is electrically connected with a scanning line; the method comprises the following steps:
dividing the first-direction sub-pixels into a plurality of pixel groups, wherein each pixel group comprises two adjacent first sub-pixels and second sub-pixels;
inputting two groups of data line voltage signals to the sub-pixels in the first direction, enabling one group of data line voltage signals to drive the first sub-pixels in each pixel group, and enabling the other group of data line voltage signals to drive the second sub-pixels in each pixel group;
and simultaneously inputting the same scanning line voltage signal to the first sub-pixel and the second sub-pixel in each pixel group, and sequentially inputting the scanning line voltage signal of each pixel group to keep the duration time of the scanning line voltage signal in each pixel group the same.
According to the driving method and the display device of the display panel, different data line voltage signals are input to the adjacent sub-pixels in the first direction, the same scanning line voltage signal is simultaneously input to each sub-pixel in each pixel group in the first direction, so that the sub-pixels in multiple rows are charged simultaneously, and the adjacent sub-pixels in the first direction are independently input with data, so that the charging time of the sub-pixels in each row is prolonged, the charging efficiency is improved, and the picture display quality is improved.
Drawings
FIG. 1 is a flowchart illustrating a driving method of a display panel according to an embodiment;
FIG. 2 is a schematic diagram of a first-direction sub-pixel of a display panel according to an embodiment;
FIG. 3 is a schematic diagram of a pixel array of a display panel according to an embodiment;
FIG. 4 is a flowchart of a method for keeping the scan line voltage signal of the same duration according to an embodiment;
FIG. 5 is a schematic diagram of scan line voltage signals according to an embodiment;
FIG. 6 is a schematic view of a display device according to an embodiment;
fig. 7 is a flowchart of a driving method of a display panel according to another embodiment.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention 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.
Fig. 1 is a flowchart of a driving method of a display panel, wherein the display panel includes a plurality of pixel units arranged in an array, each pixel unit includes a red sub-pixel, a green sub-pixel and a blue sub-pixel sequentially arranged along a first direction, and each sub-pixel is electrically connected to a scan line; the method comprises the following steps:
step S100: the first direction sub-pixels are divided into a plurality of pixel groups, and each pixel group at least comprises two sub-pixels.
Step S200: different data line voltage signals are input to adjacent sub-pixels among the first-direction sub-pixels.
Specifically, the first-direction sub-pixel is provided with two data lines, and adjacent sub-pixels in the first-direction sub-pixel are respectively connected with the two data lines. Each data line transmits a group of data line voltage signals, and the positive and negative polarities of the data line voltage signals transmitted by the two data lines can be the same or opposite. When the positive and negative polarities of the data line voltage signals transmitted by the two data lines are the same, the polarities of the data line voltage signals of all the sub-pixels in the direction are the same; when the positive and negative polarities of the data line voltage signals transmitted by the two data lines are opposite, the data line voltage signals of the sub-pixels in the direction are arranged alternately in the positive and negative polarities.
Furthermore, when the data line voltage signals of the sub-pixels in the first direction are arranged in an alternate positive and negative polarity manner, the positive and negative polarities of the data line voltage signals of the adjacent sub-pixels in each row are controlled to be opposite, namely the positive and negative polarities of the data line voltage signals driving the adjacent sub-pixels in each row are opposite, so that the data line voltage signals of the sub-pixels of the whole display panel are arranged in an alternate positive and negative polarity manner, and the image display quality is improved.
Step S300: the same scanning line voltage signal is simultaneously input to each sub-pixel in each pixel group.
Specifically, according to the number of sub-pixels in each pixel group, the scanning line voltage signals of the rows in which the sub-pixels in the pixel group are arranged are simultaneously input. That is, the TFT (Thin Film Transistor) switches of the sub-pixels in each row in the pixel group are turned on at the same time, so that the sub-pixels in each row in the pixel group are charged at the same time.
In the present embodiment, the number of gate scan lines is increased by three times due to the pixel (pixel) architecture using the tri-gate. If the scan lines input the voltage signals row by row, the duration of the voltage signal of each row of the scan lines in each frame (i.e., the charging time of the sub-pixels in the row) is reduced by three times. Therefore, in the present embodiment, a multi-row simultaneous driving manner (i.e., the sub-pixels in the first direction are divided into a plurality of pixel groups, and the scan line voltage signals of the rows where the sub-pixels in each pixel group are located are input simultaneously) is adopted, so that the effective charging time of the sub-pixels in each row is increased on the premise that the frame refresh frequency of each frame is known, thereby improving the color shift and improving the frame display quality.
When a plurality of rows of scanning lines input voltage signals simultaneously, if a group of data lines is used to connect each sub-pixel in a column, when the polarities of data required by adjacent sub-pixels in the column are opposite, a group of data lines can only input a data line voltage signal with one polarity at the same time, thereby reducing the charging efficiency of the sub-pixels. In this embodiment, the column direction is a first direction, two sets of data line voltage signals are respectively input to the first direction sub-pixels by using two sets of data lines, and adjacent sub-pixels in the first direction sub-pixels are respectively connected to the two sets of data lines. Therefore, the polarities of the data line voltage signals input by the two groups of data lines can be adjusted according to the data polarity type required by the adjacent sub-pixels in the first direction sub-pixels, and the charging efficiency of the sub-pixels is improved.
In one embodiment, the step S200 includes: two groups of data line voltage signals are input to the sub-pixels in the first direction, one group of data line voltage signals drive odd-row sub-pixels in the sub-pixels, and the other group of data line voltage signals drive even-row sub-pixels in the sub-pixels.
Specifically, as shown in fig. 2, the first-direction sub-pixel L0 is a column of sub-pixels on the display panel, and the first-direction sub-pixel L0 is provided with two data lines transmitting different data line voltage signals, namely, a data line S1 and a data line S2. The data line S1 and the data line S2 are respectively located at two sides of the first-direction subpixel L0, the data line S2 connects odd-row subpixels (H1, H3, H5 … … HM) in the first-direction subpixel L0, and the data line S1 connects even-row subpixels (H2, H4, H6 … … HM-1) in the first-direction subpixel L0. Therefore, in the first direction subpixel L0, the adjacent subpixels are connected to different data lines S1 and S2, respectively, and the data lines S1 and S2 input corresponding data line voltage signals according to data information required by the subpixels in the direction, respectively, so as to perform a charging process for the subpixels in the direction. The data line voltage signal input process of each sub-pixel of other columns on the display panel is similar to that of the sub-pixel L0 in the first direction, and is not repeated here.
It is understood that the sub-pixels connected to the data line S1 and the data line S2 can be interchanged, and the charging effect of each sub-pixel after the interchange is the same, and is not limited herein. That is, in another embodiment, the data line S1 connects odd-numbered rows of subpixels (H1, H3, H5 … … HM) in the first-direction subpixel L0, and the data line S2 connects even-numbered rows of subpixels (H2, H4, H6 … … HM-1) in the first-direction subpixel L0.
In one embodiment, the pixel group includes two adjacent first sub-pixels and second sub-pixels, and the first sub-pixels and the second sub-pixels are any two of red sub-pixels, green sub-pixels and blue sub-pixels.
Specifically, as shown in fig. 3, the figure is a schematic diagram of a pixel array of a display panel according to an embodiment. The pixel array has M rows (G1, G2, G3 … … GM) and N columns (L1, L2, L3 … … LN) of subpixels. The column direction is taken as a first direction, the first direction sub-pixels are divided into a plurality of pixel units, and each pixel unit comprises a red sub-pixel (R), a green sub-pixel (G) and a blue sub-pixel (B) which are sequentially arranged. Accordingly, the pixel group 100 includes a red sub-pixel (R) and a green sub-pixel (G), the pixel group 200 includes a blue sub-pixel (B) and a red sub-pixel (R), and the pixel group 300 includes a green sub-pixel (G) and a blue sub-pixel (B). By analogy, the sub-pixels in each pixel group in the first direction can be obtained.
Further, the step of inputting different data line voltage signals to adjacent sub-pixels in the first direction sub-pixels includes: two groups of data line voltage signals are input to the sub-pixels in the first direction, one group of data line voltage signals drives the first sub-pixels in each pixel group, and the other group of data line voltage signals drives the second sub-pixels in each pixel group.
Referring to fig. 3, taking the first direction L1 as an example, the sub-pixel in the first direction L1 is provided with two data lines, namely a data line D1 and a data line D2. The data line D2 connects the first sub-pixels in each pixel group in the direction, and the data line D1 connects the second sub-pixels in each pixel group in the direction. It is understood that in another embodiment, the data line D1 connects the first sub-pixels in each pixel group in the direction, and the data line D2 connects the second sub-pixels in each pixel group in the direction.
For example, the pixel group 100 in the first direction L1 in fig. 3. The data line D2 connects the first sub-pixel R in the pixel group 100, and the data line D1 connects the second sub-pixel G in the pixel group 100. Since the first subpixel R and the second subpixel G are each connected to one data line, data polarities required by the two subpixels can be satisfied simultaneously when the two subpixels are charged. The sub-pixel driving method of the present embodiment has a high charging efficiency compared to a case where one data line connects two adjacent sub-pixels and inputs one data polarity.
In one embodiment, the step of simultaneously inputting the same scan line voltage signal to each sub-pixel in each pixel group comprises: and sequentially inputting scanning line voltage signals to each pixel group, and keeping the duration time of the scanning line voltage signals of each pixel group the same.
Specifically, as shown in fig. 4, the step of sequentially inputting the scanning line voltage signal to each pixel group and keeping the duration of the scanning line voltage signal of each pixel group the same includes:
310: and judging whether the scanning line voltage signal in each pixel group reaches the preset duration time, if so, executing a step 320a, and otherwise, executing a step 320 b.
Step 320 a: and turning off the scanning line voltage signal in the pixel group, and inputting the scanning line voltage signal of the adjacent pixel group.
Step 320 b: the input of the scan line voltage signal is continuously maintained. When the duration of the scan line voltage signal input reaches the preset duration, step 320a is performed.
In the present embodiment, refer to fig. 5, which shows that each pixel group includes two sub-pixels, and the scanning line voltage signals of the rows of the two sub-pixels are synchronized (i.e., the same scanning line voltage signal is input at the same time). G1 and G2 represent scan line voltage signals of a row where two sub-pixels in the first pixel group are located; g3, G4 represent scan line voltage signals for a row of two subpixels in the second pixel group; g5, G6 show scan line voltage signals … … for the rows of two subpixels in the third pixel group and so on, and if the display panel has M rows of scan lines, the scan line voltage signals for the rows of two subpixels in the M/2 th group are GM-1 and GM. It can be seen that G1 and G2, G3 and G4, G5 and G6 … … GM-1 and GM have the same scan line voltage signal, respectively, and the scan line voltage signals of each group are the same in duration.
When scanning line voltage signals are input line by line, M groups of scanning line voltage signals are shared; when the scan lines G1 and G2, G3 and G4, and G5 and G6 … … simultaneously input data line voltage signals, respectively (i.e., scan line voltage signals of two rows are simultaneously input), there are M/2 groups of scan line voltage pressing signals in common. As can be seen, when the screen refresh frequency is f equal to 60Hz, the charging duration time T of each scan line group is 1/30M. Therefore, the preset duration time (preset charging time) of the scan line voltage signal in each pixel group is T-1/30M. According to the preset duration, firstly, scanning line voltage signals of G1 and G2 rows are input, when the duration of the scanning line voltage signals of G1 and G2 rows reaches T1/30M, the scanning line voltage signals of G1 and G2 rows are turned off, and the scanning line voltage signals of the next pixel group, namely the scanning line voltage signals of G3 and G4 rows, are input. And the like, until the scanning line voltage signal of the M/2 th group is input, and the charging process of each sub-pixel in the whole display panel is completed for 1/30M time.
Another embodiment provides a display device, as shown in fig. 6, including: a display panel 10 and a driving module 20. The display panel 10 includes a plurality of pixel units 11 arranged in an array, each of the pixel units 11 includes a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B sequentially arranged along a first direction, and each of the sub-pixels is electrically connected to a scan line; the first direction sub-pixels are divided into a plurality of pixel groups, and each pixel group at least comprises two sub-pixels.
The driving module 20 is configured to input different data line voltage signals to adjacent sub-pixels in the first direction sub-pixels; and is also used for simultaneously inputting the same scanning line voltage signal to each sub-pixel in each pixel group.
Specifically, the first-direction sub-pixels are provided with two data lines, the two data lines are respectively located at two sides of the first-direction sub-pixels, one data line is connected with odd-row sub-pixels in each pixel group, and the other data line is connected with even-row sub-pixels in each pixel group.
Specifically, each row of sub-pixels is provided with a scanning line, the scanning line is connected with each sub-pixel in the row, the scanning lines in each pixel group transmit the same scanning line voltage signal at the same time, and the scanning line voltage signals of each pixel group are transmitted in sequence and have the same duration.
For example, when two adjacent sub-pixels are included in the above-described pixel group, i.e., the scan lines G1 and G2, G3 and G4, and G5 and G6 … … in fig. 6 are two scan lines in each pixel group, respectively, and the two scan lines in each pixel group are simultaneously input with scan line voltage signals. When the scan lines of G1 and G2 are simultaneously inputted with the scan line voltage signals, the driving module 20 inputs the data line voltage signals to the sub-pixels of the rows of G1 and G2 for charging, and the sub-pixels in the first direction are provided with two data lines (D1 and D2, D3 and D4, D5 and D6 … … D2N-1 and D2N) to which the data line voltage signals are respectively inputted to the sub-pixels of the rows of G1 and G2 in the first direction. For example, in the first column, D1 inputs a data line voltage signal to the sub-pixels of row G2, and D2 inputs a data line voltage signal to the sub-pixels of row G1. When the charging of the sub-pixels of the rows G1 and G2 is completed, the scanning line voltage signals of G1 and G2 are turned off, and the scanning line voltage signals of G3 and G4 are simultaneously input. It can be understood that the scanning lines G1 and G2, G3 and G4, and G5 and G6 … … use two scanning lines as a group, and the scanning line voltage signals are respectively and sequentially input, and the charging process of the sub-pixels when the scanning line voltage signals of the scanning lines of each group are input is the same, which is not described herein again.
The display device may be a Tri-Gate driving structure display device, and the arrangement of pixels is RGB dot inversion vertical arrangement, but is not limited thereto. The driving method of the display panel of the present invention can also be applied to other display devices and display panels, for example: an LCD display panel, an OLED display panel, a curved display panel, or other display panel.
In the case where the display device is a liquid crystal display device, the display device may be a TN, OCB, VA, or curved liquid crystal display device, but is not limited thereto. The liquid crystal display device may use a direct backlight, and the backlight source may be a white light, a RGB three-color light source, a WRGB four-color light source, or a YRGB four-color light source, but is not limited thereto.
Another embodiment provides a driving method of a display panel. The display panel comprises a plurality of pixel units which are arranged in an array mode, each pixel unit comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel which are sequentially arranged along a first direction, and each sub-pixel is electrically connected with one scanning line. As shown in fig. 7, the method comprises the steps of:
step S100': dividing the first-direction sub-pixels into a plurality of pixel groups, wherein each pixel group comprises two adjacent first sub-pixels and second sub-pixels;
step S200': inputting two groups of data line voltage signals to the sub-pixels in the first direction, enabling one group of data line voltage signals to drive the first sub-pixels in each pixel group, and enabling the other group of data line voltage signals to drive the second sub-pixels in each pixel group;
step S300': and simultaneously inputting the same scanning line voltage signal to the first sub-pixel and the second sub-pixel in each pixel group, and sequentially inputting the scanning line voltage signal of each pixel group to keep the duration time of the scanning line voltage signal in each pixel group the same.
According to the driving method and the display device of the display panel, different data line voltage signals are input to the adjacent sub-pixels in the first direction, the same scanning line voltage signal is simultaneously input to each sub-pixel in each pixel group in the first direction, so that the sub-pixels in multiple rows are charged simultaneously, and the adjacent sub-pixels in the first direction are independently input with data, so that the charging time of the sub-pixels in each row is prolonged, the charging efficiency is improved, and the picture display quality is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (2)

1. The driving method of the display panel is characterized in that the display panel comprises a plurality of pixel units which are arranged in an array mode, each pixel unit comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel which are sequentially arranged along a first direction, and each sub-pixel is electrically connected with one scanning line; the method comprises the following steps:
dividing a first-direction sub-pixel into a plurality of pixel groups, wherein each pixel group comprises two adjacent first sub-pixels and two adjacent second sub-pixels, the first sub-pixels and the second sub-pixels are any two of red sub-pixels, green sub-pixels and blue sub-pixels, two groups of data line voltage signals are input to the first-direction sub-pixels, one group of data line voltage signals drive the first sub-pixels in each pixel group, the other group of data line voltage signals drive the second sub-pixels in each pixel group, and the positive and negative polarities of the data line voltage signals transmitted by two adjacent data lines are opposite;
sequentially inputting the same scanning line voltage signal to each pixel group and keeping the duration of the scanning line voltage signal of each pixel group the same, synchronizing the scanning line voltage signal of the row where the first sub-pixel is positioned with the scanning line voltage signal of the row where the second sub-pixel is positioned,
the step of sequentially inputting the same scanning line voltage signal to each pixel group and keeping the duration of the scanning line voltage signal of each pixel group the same comprises:
judging whether the scanning line voltage signal in each pixel group reaches the preset duration time, if so, closing the scanning line voltage signal in the pixel group, and inputting the scanning line voltage signal to the adjacent pixel group; otherwise, the input of the scanning line voltage signal is continuously maintained.
2. A display device, comprising:
the display panel comprises a plurality of pixel units which are arranged in an array manner, each pixel unit comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel which are sequentially arranged along a first direction, and each sub-pixel is electrically connected with a scanning line; the first direction sub-pixels are divided into a plurality of pixel groups, and each pixel group at least comprises two sub-pixels;
the driving module is used for inputting two groups of data line voltage signals to the sub-pixels in the first direction, enabling one group of data line voltage signals to drive a first sub-pixel in the sub-pixels, enabling the other group of data line voltage signals to drive a second sub-pixel in the sub-pixels, and sequentially inputting the same scanning line voltage signals to all pixel groups, wherein the scanning line voltage signals of the row where the first sub-pixel is located are synchronous with the scanning line voltage signals of the row where the second sub-pixel is located, the duration time of the scanning line voltage signals of all the pixel groups is kept the same, and the driving module is also used for judging whether the scanning line voltage signals of all the pixel groups reach the preset duration time, if so, the scanning line voltage signals of the pixel groups are closed, and the scanning line voltage signals are input to the adjacent pixel groups; otherwise, the input of the scanning line voltage signal is continuously maintained.
CN201710840788.0A 2017-09-18 2017-09-18 Display panel driving method and display device Active CN107633827B (en)

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Application Number Priority Date Filing Date Title
CN201710840788.0A CN107633827B (en) 2017-09-18 2017-09-18 Display panel driving method and display device
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CN107633827B (en) * 2017-09-18 2020-06-26 惠科股份有限公司 Display panel driving method and display device
CN111968569B (en) 2018-06-28 2021-11-16 京东方科技集团股份有限公司 Pixel circuit, array substrate, driving method of array substrate and display panel
CN109445148A (en) * 2019-01-11 2019-03-08 惠科股份有限公司 Adjusting method of pixel structure and pixel voltage value adjusting system
CN110264969B (en) * 2019-06-03 2021-01-29 深圳市华星光电技术有限公司 Display driving method and display device
CN110189702B (en) * 2019-06-28 2021-01-01 合肥视涯技术有限公司 Organic light emitting display panel and driving method thereof
CN112071276A (en) * 2020-10-15 2020-12-11 武汉华星光电技术有限公司 Backlight source, backlight module and display device
CN112331157A (en) * 2020-11-12 2021-02-05 Tcl华星光电技术有限公司 Display panel

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