CN108198539A - Display panel and its driving method, display device - Google Patents

Display panel and its driving method, display device Download PDF

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Publication number
CN108198539A
CN108198539A CN201810148899.XA CN201810148899A CN108198539A CN 108198539 A CN108198539 A CN 108198539A CN 201810148899 A CN201810148899 A CN 201810148899A CN 108198539 A CN108198539 A CN 108198539A
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CN
China
Prior art keywords
data line
sub
signal
switch
pixel
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Pending
Application number
CN201810148899.XA
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Chinese (zh)
Inventor
周洪波
伍黄尧
周秀峰
沈柏平
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Xiamen Tianma Microelectronics Co Ltd
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Xiamen Tianma Microelectronics Co Ltd
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Priority to CN201810148899.XA priority Critical patent/CN108198539A/en
Publication of CN108198539A publication Critical patent/CN108198539A/en
Pending legal-status Critical Current

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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
    • G09G3/3614—Control of polarity reversal in general
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • 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
    • G09G3/3607—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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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The present invention provides a kind of display panel and its driving method, display device, is related to display technology field, to improve display picture quality.Each pixel repetitive unit therein includes eight row sub-pixels；Odd column sub-pixel is made of the first and second color sub-pixels being arranged alternately；Even column sub-pixel is made of the third and fourth color sub-pixels being arranged alternately；Display panel further includes multigroup the first data line group and the second data line group being arranged alternately；Every group of first and second data line group include four the first and second data lines, and each column sub-pixel in preceding four row is connected with the first data line；The each column sub-pixel in four row is connected with the second data line afterwards；The polarity of the signal of adjacent two article of first data line and adjacent two article of second data line transfer is on the contrary, the polarity for the signal of the first data line being connected with the 4th row sub-pixel and identical with the polarity of the signal of the second data line that the 5th row sub-pixel is connected.The display panel is used to implement picture and shows.

Description

Display panel, driving method thereof and display device
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a display panel, a driving method thereof and a display device.
[ background of the invention ]
In the field of liquid crystal display, it is generally necessary to drive a liquid crystal material in a polarity inversion manner in order to prevent the liquid crystal material from being permanently broken due to polarization. Common polarity reversal approaches include: frame inversion, column inversion, row inversion, and dot inversion. When a polarity inversion method of frame inversion, row inversion or column inversion is adopted, there is a phenomenon that sub-pixels of one color are all charged to one voltage polarity when a certain frame is displayed, and sub-pixels of the color are simultaneously charged to another voltage polarity when a next frame is displayed, so that a flicker phenomenon is easily generated when two frames are switched, and the display effect is influenced.
[ summary of the invention ]
In view of the above, embodiments of the present invention provide a display panel, a driving method thereof, and a display device, so as to improve the quality of a display image.
In one aspect, an embodiment of the present invention provides a display panel, where the display panel includes a plurality of pixel repeating units, and each pixel repeating unit includes eight columns of sub-pixels sequentially arranged along a row direction;
in eight columns of the sub-pixels included in each of the pixel repeating units, odd columns of the sub-pixels are composed of first color sub-pixels and second color sub-pixels which are alternately arranged; even-numbered columns of the sub-pixels are formed by alternately arranging third color sub-pixels and fourth color sub-pixels; in the sub-pixels in the same row, the color of the first sub-pixel is the same as that of the fifth sub-pixel, the color of the second sub-pixel is the same as that of the sixth sub-pixel, the color of the third sub-pixel is the same as that of the seventh sub-pixel, and the color of the fourth sub-pixel is the same as that of the eighth sub-pixel;
the display panel also comprises a plurality of groups of first data line groups and a plurality of groups of second data line groups; the first data line group and the second data line group are alternately arranged; each group of the first data line groups comprises four first data lines which are sequentially arranged along the row direction, and in each pixel repeating unit, each column of the sub-pixels in the first four columns of the sub-pixels is respectively connected with the first data line positioned on one side of the column of the sub-pixels; each group of the second data line groups comprises four second data lines which are sequentially arranged along the row direction, and in each pixel repeating unit, each column of the sub-pixels in the last four columns of the sub-pixels is respectively connected with the second data line positioned on one side of the column of the sub-pixels;
in the first data line group, the polarities of signals transmitted by two adjacent first data lines are opposite, in the second data line group, the polarities of signals transmitted by two adjacent second data lines are opposite, and in each pixel repeating unit, the polarity of the signal of the first data line connected with the sub-pixel in the fourth column is the same as the polarity of the signal of the second data line connected with the sub-pixel in the fifth column.
On the other hand, an embodiment of the present invention provides a driving method, where the driving method is applied to the display panel, and the driving method includes:
in the first data line group, a first signal and a second signal with opposite polarities are respectively supplied to two adjacent first data lines; in the second data line group, the first signal and the second signal with opposite polarities are supplied to two adjacent second data lines, so that in each pixel repeating unit, the polarity of the first data line connected to the sub-pixel in the fourth column is the same as the polarity of the second data line connected to the sub-pixel in the fifth column.
In another aspect, an embodiment of the present invention provides a display device, which includes the above display panel.
Compared with the prior art, the display panel, the driving method thereof and the display device provided by the invention have the following beneficial effects that:
by adopting the technical scheme provided by the invention, eight rows of sub-pixels which are sequentially arranged along the row direction are arranged in each pixel repeating unit, and in the eight rows of sub-pixels which are arranged in each pixel repeating unit, odd-numbered rows of sub-pixels are formed by first color sub-pixels and second color sub-pixels which are alternately arranged, and even-numbered rows of sub-pixels are formed by third color sub-pixels and fourth color sub-pixels which are alternately arranged; in the sub-pixels in the same row, the color of the first sub-pixel is the same as that of the fifth sub-pixel, the color of the second sub-pixel is the same as that of the sixth sub-pixel, the color of the third sub-pixel is the same as that of the seventh sub-pixel, and the color of the fourth sub-pixel is the same as that of the eighth sub-pixel. In addition, the display panel is provided with a plurality of groups of first data line groups and second data line groups which are alternately arranged, four first data lines which are sequentially arranged along the row direction are arranged in each group of first data line groups, four second data lines which are sequentially arranged along the row direction are arranged in each group of second data line groups, in the working process of the display panel, the polarities of signals transmitted by two adjacent first data lines are opposite, the polarities of signals transmitted by two adjacent second data lines are opposite, and the polarity of the signal of the first data line connected with the fourth column of sub-pixels is the same as the polarity of the signal of the second data line connected with the fifth column of sub-pixels; in each pixel repeating unit, each column of sub-pixels in the first four columns of sub-pixels is respectively connected with the first data line positioned on one side of the column of sub-pixels, and each column of sub-pixels in the last four columns of sub-pixels is respectively connected with the second data line positioned on one side of the column of sub-pixels, so that at any moment in the working process of the display panel, the sub-pixels in the same color are not all in the same polarity, and the flicker phenomenon of a display picture is reduced during inversion.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is an enlarged schematic view of a display area of a display panel in a first period of time after polarity inversion according to an embodiment of the present invention;
fig. 3 is an enlarged schematic view of a display area of the display panel in a second period of time after polarity inversion according to the embodiment of the invention;
FIG. 4 is an enlarged schematic view of a display area of a display panel according to another embodiment of the present invention;
FIG. 5 is an equivalent circuit of FIG. 4;
FIG. 6 is another equivalent circuit diagram of FIG. 4;
FIG. 7 is a further equivalent circuit diagram of FIG. 4;
FIG. 8 is a further equivalent circuit diagram of FIG. 4;
FIG. 9 is a further equivalent circuit diagram of FIG. 4;
FIG. 10 is a timing diagram of signals corresponding to FIG. 5;
FIG. 11 is yet another equivalent circuit of FIG. 4;
FIG. 12 is a timing diagram of signals corresponding to FIG. 11;
fig. 13 is a schematic structural diagram of a display device according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that although the terms first and second may be used to describe the data lines in the embodiments of the present invention, the data lines should not be limited to these terms. These terms are only used to distinguish a plurality of data lines from each other. For example, the first data line may also be referred to as the second data line, and similarly, the second data line may also be referred to as the first data line without departing from the scope of embodiments of the present invention.
The embodiment of the invention provides a display panel. As shown in fig. 1 and fig. 2, fig. 1 is a schematic diagram of a display panel according to an embodiment of the present invention. Fig. 2 is an enlarged schematic view of a display area of the display panel provided in fig. 1. The display panel 10 includes a plurality of pixel repeating units 1, each pixel repeating unit 1 includes eight columns of sub-pixels arranged in sequence along a row direction x; among eight columns of sub-pixels included in each pixel repeating unit 1, odd-numbered columns of sub-pixels are composed of first-color sub-pixels 11 and second-color sub-pixels 12 which are alternately arranged, and even-numbered columns of sub-pixels are composed of third-color sub-pixels 13 and fourth-color sub-pixels 14 which are alternately arranged; and in the sub-pixels in the same row, the color of the first sub-pixel is the same as that of the fifth sub-pixel, the color of the second sub-pixel is the same as that of the sixth sub-pixel, the color of the third sub-pixel is the same as that of the seventh sub-pixel, and the color of the fourth sub-pixel is the same as that of the eighth sub-pixel (in fig. 2, the sub-pixels with different fillings represent sub-pixels with different colors).
As shown in fig. 2, the display panel 10 further includes a plurality of first data line groups Z1 and a plurality of second data line groups Z2, wherein the first data line groups Z1 and the second data line groups Z2 are alternately arranged, each first data line group Z1 includes four first data lines D1 sequentially arranged along the row direction x, and in each pixel repeating unit, each column of sub-pixels in the first four columns of sub-pixels is respectively connected to the first data line D1 located at one side of the column of sub-pixels. Each group of the second data line group Z2 includes four second data lines D2 arranged in sequence along the row direction x, and in each pixel repeating unit, each column of sub-pixels in the last four columns of sub-pixels is connected to the second data line D2 located at one side of the column of sub-pixels.
In the first data line group Z1, the polarities of signals transmitted to the adjacent two first data lines D1 are opposite, in the second data line group Z2, the polarities of signals transmitted to the adjacent two second data lines D2 are opposite, and in each pixel repeating unit, the polarity of a signal of the first data line D1 connected to the fourth column of sub-pixels is the same as the polarity of a signal of the second data line D2 connected to the fifth column of sub-pixels. In fig. 2, the polarity of the signal of the first data line D1 connected to the sub-pixel of the fourth column and the polarity of the signal of the second data line D2 connected to the sub-pixel of the fifth column are negative.
When the display panel 10 is in operation, in the first data line group Z1, a first signal and a second signal with opposite polarities are respectively provided to two adjacent first data lines D1; in the second data line group Z2, the first signal and the second signal having opposite polarities are supplied to the adjacent two second data lines D2, and the polarity of the first data line D1 connected to the fourth column of sub-pixels and the polarity of the second data line D2 connected to the fifth column of sub-pixels in each pixel repetition unit 1 are made the same.
Taking the first signal as a positive signal and the second signal as a negative signal as an example, as shown in fig. 2, assuming that the display panel is in the polarity inversion for the first time period, in the first data line group Z1, the positive signal is provided to the first data line D1, the negative signal is provided to the second first data line D1, the positive signal is provided to the third first data line D1, and the negative signal is provided to the fourth first data line D1; in the second data line group Z2, a negative signal is supplied to the first second data line D2, a positive signal is supplied to the second data line D2, a negative signal is supplied to the third second data line D2, and a positive signal is supplied to the fourth second data line D2. This makes the polarities of the first, third, sixth and eighth columns of sub-pixels positive and the polarities of the second, fourth, fifth and seventh columns of sub-pixels negative in each pixel repetition unit 1, and in combination with the above-described pixel arrangement, the same color sub-pixels are not all simultaneously made to be the same polarity in the display panel, and then when a polarity inversion second period is entered, a second signal is supplied to the first data line D1 and the second data line D2, which transmit the first signal during the polarity inversion first period, and a first signal is supplied to the first data line D1 and the second data line D2, which transmit the second signal during the polarity inversion first period, while, as shown in fig. 3, in the first data line Z1, a negative signal is supplied to the first data line D1 and a positive signal is supplied to the second first data line D1, a negative signal is supplied to the third first data line D1 and a positive signal is supplied to the fourth first data line D1; in the second data line group Z2, a positive signal is supplied to the first second data line D2, a negative signal is supplied to the second data line D2, a positive signal is supplied to the third second data line D2, and a negative signal is supplied to the fourth second data line D2.
That is, when the display panel is inverted, i.e. when the display panel is from a first period of time of polarity inversion to a second period of time of polarity inversion, in the display panel, a part of the sub-pixels of the same color is changed from the first signal to the second signal, and another part of the sub-pixels of the same color is changed from the second signal to the first signal, thereby avoiding the prior art that the sub-pixels of the same color are all changed from one signal to another signal, and if the sub-pixels of the same color are all changed from one signal to another signal, because the difference of the light transmission amount is inevitably brought by the difference of the deflection direction of the liquid crystal molecules when the liquid crystal molecules are in the positive or polar state, and the difference of the picture brightness when the liquid crystal molecules are in the positive or polar state, therefore, if the display panel is in the polarity inversion, the sub-pixels of the same color are all changed from one signal to another, which causes a problem of inconsistent brightness before and after inversion, and makes human eyes observe a flicker phenomenon. In the display panel provided by the embodiment, when the polarity is reversed, one part of the sub-pixels of the same color is changed from the second signal to the first signal, and the other part of the sub-pixels of the same color is changed from the second signal to the first signal, so that the obvious brightness difference caused by the change of the whole picture from one polarity to the other polarity can be avoided, and the display effect is improved.
In addition, the present embodiment is configured by setting odd-numbered columns of sub-pixels among eight columns of sub-pixels included in each pixel repeating unit 1 to include first color sub-pixels 11 and second color sub-pixels 12 alternately arranged, and setting even-numbered columns of sub-pixels to include third color sub-pixels 13 and fourth color sub-pixels 14 alternately arranged; therefore, the colors of the four sub-pixels at the intersection points of the sub-pixels of two adjacent rows and two adjacent columns are different from each other, so that the color mixing uniformity of the sub-pixels can be improved, and the display effect is improved.
On this basis, in the sub-pixels in the same row, the color of the first sub-pixel is the same as that of the fifth sub-pixel, the color of the second sub-pixel is the same as that of the sixth sub-pixel, the color of the third sub-pixel is the same as that of the seventh sub-pixel, and the color of the fourth sub-pixel is the same as that of the eighth sub-pixel, that is, in one row, the sub-pixels in the same color are circularly arranged according to the order of the first color sub-pixel 11, the third color sub-pixel 13, the second color sub-pixel 12 and the fourth color sub-pixel 14, so that the sub-pixels in the same color are prevented from being too close to each other in the row direction, the color mixing of the display panel is further improved, and the display effect is improved.
It should be noted that the first data line D1 and the second data line D2 are both connected to a driving chip (not shown), and signals transmitted through the first data line D1 and the second data line D2 are provided by the driving chip.
In addition, for the display panel adopting the RGB three-color display technology in the prior art, since the RGB color filters are all absorption type color resistance layers, when light emitted from the backlight enters the color resistance layers, only light of corresponding color can pass through, and light of the other two colors is absorbed, resulting in lower light transmittance of the display panel. Therefore, in the present embodiment, the first color sub-pixel 11 is a red sub-pixel R, the second color sub-pixel 12 is a blue sub-pixel B, the third color sub-pixel 13 is a green sub-pixel G, and the fourth color sub-pixel 14 is a highlight sub-pixel. That is, in this embodiment, through selecting for use the highlight sub pixel that can see through more light to promote display panel's luminousness, and, to the display panel who adopts highlight sub pixel, when the picture of the same luminance is shown, also can make display panel's consumption lower, reduce cost. Alternatively, the highlight sub-pixel may be a white sub-pixel W or a yellow sub-pixel Y. Taking the preparation of the display panel including the white subpixel W as an example, during the preparation, the color resist layer is not disposed at a position corresponding to the white subpixel W on the color film substrate of the display panel, so that the light transmittance of the light emitted by the backlight source is increased.
In the following description, unless otherwise specified, the first color sub-pixel 11 is a red sub-pixel R, the second color sub-pixel 12 is a blue sub-pixel B, the third color sub-pixel 13 is a green sub-pixel G, and the fourth color sub-pixel 14 is a white sub-pixel.
As shown in fig. 4, fig. 4 is another schematic view of the display panel provided in this embodiment, where the display panel further includes a plurality of demultiplexing units, and each demultiplexing unit includes a first demultiplexing unit F1 and a second demultiplexing unit F2; in the first data line group Z1, signals transmitted by two adjacent first data lines D1 are a first signal and a second signal, respectively, and in the second data line group Z2, signals transmitted by two adjacent second data lines are a first signal and a second signal, respectively, and polarities of the first signal and the second signal are opposite; the first demultiplexing unit F1 is connected to the first data line D1 transmitting the first signal in the first data line group Z1 and the second data line D2 transmitting the first signal in the second data line group Z2, respectively; the second demultiplexing unit F2 is connected to the first data line D1 transmitting the second signal in the first data line group Z1 and the second data line D2 transmitting the second signal in the second data line group Z2, respectively. The present embodiment provides a first signal to a first dividing cell F1 through a signal line (not shown) by providing a plurality of first dividing cells F1 and a plurality of second dividing cells F2, and connecting each of the first dividing cells F1 to a first data line D1 transmitting a first signal in a first data line group Z1 and a second data line D2 transmitting a first signal in a second data line group Z2, respectively, connecting each of the second dividing cells F2 to a first data line D1 transmitting a second signal in the first data line group Z1 and a second data line D2 transmitting a second signal in the second data line group Z2, respectively, and then connecting the first dividing cell F1 and the second dividing cell F2 to a driving chip (not shown); and the second signal is supplied to the second demultiplexing unit F2 through another signal line (not shown) by the driver chip, so that each of the first data lines D1 and each of the second data lines D2 is prevented from being directly connected to the driver chip, thereby reducing the number of ports on the driver chip. Specifically, in the present embodiment, eight columns of sub-pixels sequentially arranged in the row direction x are set as one pixel repeating unit, and accordingly, a first data line group Z1 including four first data lines D1 and a second data line group Z2 including four second data lines D2 are provided corresponding to the pixel repeating unit, and then two first data lines D1 and two second data lines D2 in which first signals are transmitted are connected to the first sharing unit F1, and two first data lines D1 and two second data lines D2 in which second signals are transmitted are connected to the second sharing unit F2, that is, the first sharing unit F1 and the second sharing unit F2 are both connected to the four data lines, so that the number of ports on the driving chip can be reduced to one fourth.
The above-described technique of supplying a signal to a plurality of data lines using one signal line may be referred to as a demultiplexing (demux) technique. Illustratively, as shown in fig. 5 to 9, the first tapping unit includes four first switching elements K1, and the second tapping unit includes four second switching elements K2; the display panel also comprises four groups of switch control signal lines CK1-CK 4; control ends of four first switch elements K1 are respectively connected with four groups of switch control signal lines CK1-CK4 in a one-to-one correspondence manner, control ends of four second switch elements K2 are respectively connected with four groups of switch control signal lines CK1-CK4 in a one-to-one correspondence manner, first ends of four first switch elements K1 are connected with a first signal end S1, first ends of four second switch elements K2 are connected with a second signal end S2, and polarities of signals transmitted by the first signal end S1 and the second signal end S2 are opposite.
Second terminals of two first switch elements K1 are connected to two first data lines D1 in the first data line group Z1, which transmit the first signal, in a one-to-one correspondence manner, and second terminals of two other first switch elements K1 are connected to two second data lines D2 in the second data line group Z2, which transmit the first signal, in a one-to-one correspondence manner; second terminals of two second switch elements K2 are connected to two first data lines D1 in the first data line group Z1, which transmit the second signal, in a one-to-one correspondence manner, and second terminals of two other second switch elements K2 are connected to two second data lines D2 in the second data line group Z2, which transmit the second signal, in a one-to-one correspondence manner.
Exemplarily, as shown in fig. 5, wherein the control terminal of the first switching element K1 connected to the first data line D1 in the first data line group Z1 and the control terminal of the second switching element K2 connected to the first second data line D2 in the second data line group Z2 are connected to different groups of switching control signal lines;
the control terminal of the second switching element K2 connected to the second first data line D1 in the first data line group Z1 and the control terminal of the first switching element K1 connected to the second data line D2 in the second data line group Z2 are connected to different groups of switching control signal lines;
the control terminals of the first switching element K1 connected to the third first data line D1 in the first data line group Z1 and the control terminals of the second switching element K2 connected to the third second data line D2 in the second data line group Z2 are connected to different groups of switching control signal lines;
the control terminal of the second switching element K1 connected to the fourth first data line D1 in the first data line group Z1 and the control terminal of the first switching element K1 connected to the fourth second data line D2 in the second data line group Z2 are connected to different groups of switch control signal lines.
For example, in fig. 5, a control terminal of the first switching element K1 connected to the first data line D1 in the first data line group Z1 is connected to the switch control signal line CK1, and a control terminal of the second switching element K2 connected to the first second data line D2 in the second data line group Z2 is connected to the switch control signal line CK 3; a control terminal of the second switching element K2 connected to the second first data line D1 in the first data line group Z1 is connected to the switching control signal line CK1, and a control terminal of the first switching element K1 connected to the second data line D2 in the second data line group Z2 is connected to the switching control signal line CK 3; a control terminal of the first switching element K1 connected to the third first data line D1 in the first data line group Z1 is connected to the switching control signal line CK2, and a control terminal of the second switching element K2 connected to the third second data line D2 in the second data line group Z2 is connected to the switching control signal line CK 4; a control terminal of the second switching element K1 connected to the fourth first data line D1 in the first data line group Z1 is connected to the switch control signal line CK2, and a control terminal of the first switching element K1 connected to the fourth second data line D2 in the second data line group Z2 is connected to the switch control signal line CK 4.
In each pixel repeating unit provided in this embodiment, in the sub-pixels in the same row, the first sub-pixel and the fifth sub-pixel have the same color, the second sub-pixel and the sixth sub-pixel have the same color, the third sub-pixel and the seventh sub-pixel have the same color, and the fourth sub-pixel and the eighth sub-pixel have the same color. Specifically, taking the equivalent circuit shown in fig. 5 as an example, in which four sets of switch control signal lines are sequentially turned on in the order of CK1, CK2, CK3, and CK4, when a red color image is displayed, it is assumed that the display panel is in a first time period of polarity inversion, in the equivalent circuit shown in fig. 5, when the gate line corresponding to the first row of sub-pixels is turned on and the switch control signal line CK1 outputs a control signal, the first switch element K1 connected to the first data line D1 in the first data line group Z1 is turned on, and at this time, a signal output by the first signal terminal S1 charges the first sub-pixel 11 through the first data line D1; for the fifth sub-pixel in the row, that is, the other first sub-pixel 11, if the two sub-pixels with the same color are charged simultaneously, because the polarities of the two sub-pixels with the same color are opposite, when the two sub-pixels are charged simultaneously, the polarities of the signals transmitted on the data lines connecting the two sub-pixels are opposite, the two signals will interfere with each other to generate coupling noise, which affects the accuracy of the signals transmitted on the two data lines, and finally the charged amount of the two sub-pixels deviates from the theoretical value, so that the display effect is affected. In the embodiment, the data lines connected with the sub-pixels of the same color in the same row are respectively connected to the switch control signal lines of different groups through the switch elements, so that when the display panel displays a pure color picture, the sub-pixels of the same color are charged in a time-sharing manner by controlling the switch control signal lines of different groups to be opened in a time-sharing manner, and thus, the problem of mutual interference caused by the simultaneous charging of the sub-pixels of the same color is avoided, and the display effect is ensured.
It is understood that, under the premise of ensuring the sub-pixels of the same color to be charged in a time-sharing manner, the first and second dividing units provided in this embodiment may be connected according to the circuit connection relationship shown in fig. 6 and 7, in addition to the case shown in fig. 5.
Optionally, as shown in fig. 8, fig. 8 is a schematic circuit diagram of a first dividing unit and a second dividing unit provided in this embodiment. Wherein, in the adjacent first data line group Z1 and second data line group Z2, the control terminal of the first switching element K1 connected to the first data line D1 in the first data line group Z1 and the control terminal of the second switching element K2 connected to the first second data line D2 in the second data line group Z2 are connected to the same group of switch control signal lines;
the control terminal of the second switching element K2 connected to the second first data line D1 in the first data line group Z1 and the control terminal of the first switching element K1 connected to the second data line D2 in the second data line group Z2 are connected to the same group of switch control signal lines;
the control terminal of the first switching element K1 connected to the third first data line D1 in the first data line group Z1 and the control terminal of the second switching element K2 connected to the third second data line D2 in the second data line group Z2 are connected to the same group of switch control signal lines;
the control terminal of the second switching element K2 connected to the fourth first data line D1 in the first data line group Z1 and the control terminal of the first switching element K1 connected to the fourth second data line D2 in the second data line group Z2 are connected to the same group of switch control signal lines.
For example, in fig. 8, a control terminal of the first switching element K1 connected to the first data line D1 in the first data line group Z1 is connected to the switch control signal line CK1, and a control terminal of the second switching element K2 connected to the first second data line D2 in the second data line group Z2 is connected to the switch control signal line CK 1; a control terminal of the second switching element K2 connected to the second first data line D1 in the first data line group Z1 is connected to the switching control signal line CK2, and a control terminal of the first switching element K1 connected to the second data line D2 in the second data line group Z2 is connected to the switching control signal line CK 2; a control terminal of the first switching element K1 connected to the third first data line D1 in the first data line group Z1 is connected to the switching control signal line CK3, and a control terminal of the second switching element K2 connected to the third second data line D2 in the second data line group Z2 is connected to the switching control signal line CK 3; a control terminal of the second switching element K2 connected to the fourth first data line D1 in the first data line group Z1 is connected to the switch control signal line CK4, and a control terminal of the first switching element K1 connected to the fourth second data line D2 in the second data line group Z2 is connected to the switch control signal line CK 4.
In this embodiment, the data lines connected to the sub-pixels of the same color are respectively connected to the switch control signal lines of the same group through the switch elements, so that when the display panel operates, the sub-pixels of the same color can be charged simultaneously, and the charging time can be ensured to be the same, thereby ensuring that the sub-pixels of the same color have uniform brightness and chromaticity.
It is understood that, under the premise of ensuring that sub-pixels of the same color are charged simultaneously, the first and second dividing units provided in this embodiment may be connected in the circuit connection relationship shown in fig. 9, in addition to the case shown in fig. 8 described above.
Referring to fig. 10, fig. 10 is a signal timing diagram corresponding to fig. 5, and the driving method of the display panel is specifically described as follows:
when the display panel is in operation, taking the polarity inversion period of the display panel as two frames of pictures and the display panel is in the polarity inversion for the first time period as an example, the first signal terminal S1 outputs the first signal, the second signal terminal S2 outputs the second signal, and any one of the gate lines G is connected to the first signal terminal S2iWithin the turn-on time of (c):
in the 1 st period t1, the first switching element K1 and the second switching element K2 connected to the switching control signal line CK1 are turned on by the control signal outputted from the switching control signal line CK1, so that the first signal outputted from the first signal terminal S1 is transmitted to the first data line D1, and the second signal outputted from the second signal terminal S2 is transmitted to the second first data line D1, i.e., to the gate line G connected to the gate line GiA sub-pixel connected to the first data line D1 is charged with a first signal, and connected to the gate line GiThe sub-pixel connected to the second first data line D2 charges the second signal;
in the 2 nd period t2, the first and second switching elements K1 and K2 connected to the switching control signal line CK2 are turned on by the control signal output from the switching control signal line CK2, so that the first signal output from the first signal terminal S1 is transmitted to the third and second data lines D2, the second signal output from the second signal terminal S2 is transmitted to the fourth and first data line D1, that is, the first signal is charged to the sub-pixels connected to the gate line Gi and the third and first data lines D1, and the second signal is charged to the sub-pixels connected to the gate line Gi and the fourth and first data lines D1.
In the 3 rd period t3, the first and second switching elements K1 and K2 connected to the switching control signal line CK3 are turned on by the control signal output from the switching control signal line CK3, so that the first signal output from the first signal terminal S1 is transmitted to the second data line D2, the second signal output from the second signal terminal S2 is transmitted to the first and second data lines D2, that is, the second signal is charged to the sub-pixels connected to the gate line Gi and the first and second data lines D2, and the first signal is charged to the sub-pixels connected to the gate line Gi and the second data line D2;
in the 4 th period t4, the first and second switching elements K1 and K2 connected to the switching control signal line CK4 are turned on by the control signal output from the switching control signal line CK4, so that the first signal output from the first signal terminal S1 is transmitted to the fourth and second data line D2, the second signal output from the second signal terminal S2 is transmitted to the third and second data line D2, that is, the second signal is charged to the sub-pixels connected to the gate line Gi and the third and second data line D2, and the first signal is charged to the sub-pixels connected to the gate line Gi and the fourth and second data line D2.
Then, the gate line G of the next row is scannedi+1The control signals are sequentially output from CK1, CK2, CK3 and CK4 in the above order. Until the frame image is displayed. Then, in the second period T2 of polarity inversion, the first signal terminal S1 outputs the second signal, and the second signal terminal S2 outputs the second signal, and then, the scanning from the first gate line to the last gate line is continued, and during the on time of each gate line, the operation is continued according to the above timing sequence.
For example, the first switching element K1 and the second switching element K2 may include PMOS transistors and/or NMOS transistors, and when PMOS transistors are selected, the switching control signal lines CK1-CK4 output low level signals to control the first switching element K1 and the second switching element K2 to be turned on; when the NMOS transistor is selected, the switch control signal line CK1-CK4 outputs a high level signal to control the first switch element K1 and the second switch element K2 to be turned on.
It should be understood that the timing of outputting the control signals from the switch control signal lines CK1-CK4 is not limited to the sequence of CK1, CK2, CK3 and CK4, but may also be in the sequence of CK1, CK3, CK2 and CK4, or in the sequence of CK3, CK2, CK4 and CK1, or in other sequences, and the above description is only made in terms of the circuit connection relationship shown in fig. 5, and the rest of the timing is the same as the above description, and thus, the description is omitted here.
It should be understood that the above-described first and second switching elements K1 and K2 may include only one control terminal and then be controlled by one switching control signal line connected thereto, and the first and second switching elements K1 and K2 may be configured to include a plurality of control terminals which are correspondingly controlled by a set of switching control signal lines composed of a plurality of switching control signal lines. The following description will be given taking an example in which the first switching element K1 and the second switching element K2 include two control terminals, and one set of the switching control signal lines includes two switching control signal lines.
Illustratively, as shown in fig. 11, each of the first switching elements K1 includes a first switch K11 and a second switch K12, each of the second switching elements K2 includes a first switch K21 and a second switch K22, the first group of switch control signal lines includes a first switch control signal line CK11 and a second switch control signal line CK12, the second group of switch control signal lines includes a first switch control signal line CK21 and a second switch control signal line CK22, the third group of switch control signal lines includes a first switch control signal line CK31 and a second switch control signal line CK32, and the fourth group of switch control signal lines includes a first switch control signal line CK41 and a second switch control signal line CK 42. Wherein,
the control terminal of the first switch K11 of each first switching element K1 is connected to one first switch control signal line, the control terminal of the second switch K12 of each first switching element K1 is connected to one second switch control signal line,
a control terminal of the first switch K21 of each second switching element K2 is connected to one first switch control signal line, and a control terminal of the second switch K22 of each second switching element K2 is connected to one second switch control signal line;
a first terminal of the first switch K11 of each first switching element K1 and a first terminal of the second switch K12 of each first switching element K1 are connected to a first signal terminal S1, and a first terminal of the first switch K21 of each second switching element K2 and a first terminal of the second switch K22 of each second switching element K2 are connected to a second signal terminal S2;
second ends of the first switches K11 and the second switches K12 of the two first switch elements K1 are respectively connected with the two first data lines D1 which transmit the first signals in each group of the first data line group Z1 in a one-to-one correspondence manner, and second ends of the first switches K11 and the second switches K12 of the other two first switch elements K1 are respectively connected with the two second data lines D2 which transmit the first signals in each group of the second data line group Z2 in a one-to-one correspondence manner;
the second ends of the first switch K21 and the second switch K22 of the two second switch elements K2 are respectively connected with the two first data lines D1, which transmit the second signals, in each group of the first data line groups Z1 in a one-to-one correspondence manner, and the second ends of the first switch K21 and the second switch K22 of the other two second switch elements K2 are respectively connected with the two second data lines D2, which transmit the second signals, in each group of the second data line groups Z2 in a one-to-one correspondence manner.
Referring to fig. 12, fig. 12 is a signal timing diagram corresponding to fig. 11, and the driving method of the display panel is specifically described as follows:
when the display panel is in operation, still taking the polarity inversion period of the display panel as two frames of pictures and the display panel is in the polarity inversion for the first time period as an example, the first signal terminal S1 outputs the first signal, the second signal terminal S2 outputs the second signal, and any gate line G is connected to the first signal terminal S1iWithin the turn-on time of (c):
during a 1 st period t1, under the action of the control signals outputted from the first switch control signal line CK11 and the first second switch control signal line CK12, the first switch K11 and the second switch K12 of the first switch element K1 connected to the first switch control signal line CK11 and the first second switch control signal line CK12 are turned on, the first switch K21 and the second switch K22 of the second switch element K2 connected to the first switch control signal line CK11 and the first second switch control signal line CK12 are turned on, so that the first signal outputted from the first signal terminal S1 is transmitted to the first data line D1, and the second signal outputted from the second signal terminal S2 is transmitted to the second first data line D1, that is, to the gate line G35giA sub-pixel connected to the first data line D1 is charged with a first signal, and connected to the gate line GiThe sub-pixel connected to the second first data line D1 charges the second signal;
in the 2 nd period t2, under the action of the control signals output from the second first switch control signal line CK21 and the second switch control signal line CK22, the first switch K11 and the second switch K12 of the first switching element K1 connected to the second first switch control signal line CK21 and the second switch control signal line CK22 are turned on, the first switch K21 and the second switch K22 of the second switching element K2 connected to the second first switch control signal line CK21 and the second switch control signal line CK22 are turned on, so that the first signal outputted from the first signal terminal S1 is transmitted to the third first data line D1, the second signal outputted from the second signal terminal S2 is transmitted to the fourth first data line D1, that is, a first signal is supplied to the sub-pixel connected to the gate line Gi and the third first data line D1, and a second signal is supplied to the sub-pixel connected to the gate line Gi and the fourth first data line D1;
in the 3 rd period t3, under the action of the control signals output from the third first switch control signal line CK31 and the third second switch control signal line CK32, the first switch K11 and the second switch K12 of the first switching element K1 connected to the third first switch control signal line CK31 and the third second switch control signal line CK32 are turned on, the first switch K21 and the second switch K22 of the second switching element K2 connected to the third first switch control signal line CK13 and the third second switch control signal line CK23 are turned on, so that the first signal outputted from the first signal terminal S1 is transmitted to the second data line D2, the second signal outputted from the second signal terminal S2 is transmitted to the first data line D2, that is, a first signal is supplied to the sub-pixel connected to the gate line Gi and the second data line D2, and a second signal is supplied to the sub-pixel connected to the gate line Gi and the first second data line D2;
in the 4 th period t4, under the control signals output from the fourth first switch control signal line CK41 and the fourth second switch control signal line CK42, the first switch K11 and the second switch K12 of the first switching element K1 connected to the fourth first switch control signal line CK41 and the fourth second switch control signal line CK42 are turned on, the first switch K21 and the second switch K22 of the second switching element K2 connected to the fourth first switch control signal line CK41 and the fourth second switch control signal line CK42 are turned on, so that the first signal outputted from the first signal terminal S1 is transmitted to the fourth second data line D2, the second signal outputted from the second signal terminal S2 is transmitted to the third second data line D2, that is, a first signal is supplied to the sub-pixel connected to the gate line Gi and the fourth second data line D2, and a second signal is supplied to the sub-pixel connected to the gate line Gi and the third second data line D2.
Then, the gate line G of the next row is scannedi+1The first switch control signal line CK11-CK41 and the second switch control signal line CK12-CK42 sequentially output control signals in this order. Until the frame image is displayed. Then, in the polarity inversion second time period T2, the first signal terminal S1 outputs the second signal, and the second signal terminal S2 outputs the first signal, then, scanning continues from the first gate line to the last gate line, and then, during the on time of each gate line, operation continues according to the above timing sequence.
Illustratively, the first switch is a PMOS transistor, and the second switch is an NMOS transistor. In the embodiment, the first switching element K1 and the second switching element K2 are formed by selecting a PMOS transistor and an NMOS transistor, so as to overcome the defect that the PMOS transistor has threshold loss when transmitting low level and has no threshold loss when transmitting high level; the NMOS transistor has a threshold loss when transmitting a high level, and has no threshold loss when transmitting a low level. In the present embodiment, the PMOS transistor and the NMOS transistor are selected to form the first switching element K1 and the second switching element K2, so that the effect of no threshold loss can be achieved when high and low levels are transmitted. Alternatively, the first switching element K1 and the second switching element K2 in this embodiment may be CMOS transistors.
It is to be understood that the timing at which the first switch control signal line CK11-CK41 outputs the control signals may not be limited to the order of CK11, CK21, CK31, CK41, or may be in the order of CK11, CK31, CK41, CK21, or in other orders, and similarly, the timing at which the second switch control signal line CK12-CK42 outputs the control signals may not be limited to the order of CK12, CK22, CK32, CK42, or may be in the order of CK12, CK32, CK42, CK22, or in other orders, as long as the switch control signal lines connecting the same first switch and second switch are guaranteed to output the control signals at the same time; the present embodiment does not limit this.
It can be understood that, in the case of using a PMOS transistor and an NMOS transistor to form the first switch element K1 and the second switch element K2, a scheme of ensuring simultaneous charging or time-sharing charging of sub-pixels of the same color can still be adopted, and fig. 11 is only an example of a scheme of ensuring time-sharing charging of sub-pixels of the same color, and actually, the first switch element K1 and the second switch element K2 in the schemes shown in fig. 6 to 9 can both be formed by using a PMOS transistor and an NMOS transistor, and will not be described herein again.
The present embodiment further provides a driving method, which is applied to the display panel, and the driving method includes:
in the first data line group, a first signal and a second signal with opposite polarities are respectively supplied to two adjacent first data lines; in the second data line group, a first signal and a second signal with opposite polarities are supplied to two adjacent second data lines, so that the polarity of a first data line connected with a fourth column of sub-pixels and the polarity of a second data line connected with a fifth column of sub-pixels in each pixel repeating unit are the same.
When the driving method provided by this embodiment is adopted, each pixel repeating unit in the display panel is provided with eight columns of sub-pixels arranged in sequence along the row direction, and among the eight columns of sub-pixels included in each pixel repeating unit, odd columns of sub-pixels are composed of first color sub-pixels and second color sub-pixels arranged alternately, even columns of sub-pixels are composed of third color sub-pixels and fourth color sub-pixels arranged alternately; in the sub-pixels in the same row, the color of the first sub-pixel is the same as that of the fifth sub-pixel, the color of the second sub-pixel is the same as that of the sixth sub-pixel, the color of the third sub-pixel is the same as that of the seventh sub-pixel, and the color of the fourth sub-pixel is the same as that of the eighth sub-pixel. In addition, the present embodiment includes a plurality of sets of first data line groups and second data line groups that are alternately arranged, where each set of first data line groups includes four first data lines that are sequentially arranged along the row direction, and each set of second data line groups includes four second data lines that are sequentially arranged along the row direction. In the working process of the display panel, the polarities of signals transmitted by two adjacent first data lines are opposite, the polarities of signals transmitted by two adjacent second data lines are opposite, and the polarity of the signal of the first data line connected with the fourth column of sub-pixels is the same as the polarity of the signal of the second data line connected with the fifth column of sub-pixels; in each pixel repeating unit, each column of sub-pixels in the first four columns of sub-pixels is respectively connected with the first data line positioned on one side of the column of sub-pixels, and each column of sub-pixels in the last four columns of sub-pixels is respectively connected with the second data line positioned on one side of the column of sub-pixels, so that at a certain moment, the sub-pixels of the same color cannot be all in the same polarity, and the phenomenon that the sub-pixels of the same color are all changed from one signal to another signal in the prior art is avoided when the polarity is reversed. If the sub-pixels of the same color are all changed from one signal to another signal, the difference of light transmission amount is inevitably caused by the difference of the deflection directions of the liquid crystal molecules when the liquid crystal molecules are in a positive state or a polar state, which causes the difference of the image brightness when the liquid crystal molecules are in the positive state or the polar state, therefore, if the polarity of the display panel is reversed, the sub-pixels of the same color are all changed from one signal to another signal, which causes the problem of inconsistent brightness before and after the reversal, and the flicker phenomenon can be observed by human eyes. With the driving method provided in this embodiment, when the polarity is reversed, a part of the sub-pixels of the same color is changed from the second signal to the first signal, and another part of the sub-pixels of the same color is changed from the second signal to the first signal, so that the flicker phenomenon caused by the change of the polarity of the whole picture from one polarity to another polarity can be avoided.
Illustratively, the first polarity is opposite to the second polarity, so that the sub-pixels respectively operate at opposite polarities to prevent polarization of the liquid crystal material constituting the sub-pixels.
In addition, the specific implementation of the driving method of the display panel has been described in detail in the foregoing embodiments, and is not described herein again.
As shown in fig. 13, fig. 13 is a schematic structural diagram of a display device provided in the embodiment of the present invention, and the display device 100 includes the display panel 10. The specific structure and driving method of the display panel 10 have been described in detail in the above embodiments, and are not described herein again. Of course, the display device shown in fig. 13 is only a schematic illustration, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
Since the display device 100 provided by the present embodiment includes the display panel 10 as described above, the display device provided by the present embodiment can not only improve the display screen quality, but also solve the problem of large power consumption of the display panel.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (12)

1. A display panel is characterized by comprising a plurality of pixel repeating units, wherein each pixel repeating unit comprises eight columns of sub-pixels which are sequentially arranged along a row direction;
in eight columns of the sub-pixels included in each of the pixel repeating units, odd columns of the sub-pixels are composed of first color sub-pixels and second color sub-pixels which are alternately arranged; even-numbered columns of the sub-pixels are formed by alternately arranging third color sub-pixels and fourth color sub-pixels; in the sub-pixels in the same row, the color of the first sub-pixel is the same as that of the fifth sub-pixel, the color of the second sub-pixel is the same as that of the sixth sub-pixel, the color of the third sub-pixel is the same as that of the seventh sub-pixel, and the color of the fourth sub-pixel is the same as that of the eighth sub-pixel;
the display panel also comprises a plurality of groups of first data line groups and a plurality of groups of second data line groups; the first data line group and the second data line group are alternately arranged; each group of the first data line groups comprises four first data lines which are sequentially arranged along the row direction, and in each pixel repeating unit, each column of the sub-pixels in the first four columns of the sub-pixels is respectively connected with the first data line positioned on one side of the column of the sub-pixels; each group of the second data line groups comprises four second data lines which are sequentially arranged along the row direction, and in each pixel repeating unit, each column of the sub-pixels in the last four columns of the sub-pixels is respectively connected with the second data line positioned on one side of the column of the sub-pixels;
in the first data line group, the polarities of signals transmitted by two adjacent first data lines are opposite, in the second data line group, the polarities of signals transmitted by two adjacent second data lines are opposite, and in each pixel repeating unit, the polarity of the signal of the first data line connected with the sub-pixel in the fourth column is the same as the polarity of the signal of the second data line connected with the sub-pixel in the fifth column.
2. The display panel of claim 1, wherein the first color sub-pixel is a red sub-pixel, the second color sub-pixel is a blue sub-pixel, the third color sub-pixel is a green sub-pixel, and the fourth color sub-pixel is a highlight sub-pixel.
3. The display panel of claim 2, wherein the highlight sub-pixel is a white sub-pixel or a yellow sub-pixel.
4. The display panel according to claim 1, wherein the display panel further comprises a plurality of demultiplexing units, each of the demultiplexing units comprising a first demultiplexing unit and a second demultiplexing unit;
in the first data line group, signals transmitted by two adjacent first data lines are respectively a first signal and a second signal, and in the second data line group, signals transmitted by two adjacent second data lines are respectively the first signal and the second signal; the first signal and the second signal have opposite polarities;
the first demultiplexing unit is respectively connected with the first data line which transmits the first signal in the first data line group and the second data line which transmits the first signal in the second data line group;
the second multiplexing unit is respectively connected to the first data line in the first data line group, which transmits the second signal, and the second data line in the second data line group, which transmits the second signal.
5. The display panel according to claim 4, wherein the first demultiplexing unit includes four first switching elements, and the second demultiplexing unit includes four second switching elements; the display panel also comprises four groups of switch control signal lines; the control ends of the four first switch elements are respectively connected with the four groups of switch control signal wires in a one-to-one correspondence manner; the control ends of the four second switch elements are respectively connected with the four groups of switch control signal lines in a one-to-one correspondence manner, the first ends of the four first switch elements are connected with the first signal end, and the first ends of the four second switch elements are connected with the second signal end; the polarities of signals transmitted by the first signal terminal and the second signal terminal are opposite;
second ends of two of the first switching elements are connected with two of the first data lines in the first data line group, which transmit the first signal, in a one-to-one correspondence manner, and second ends of the other two of the first switching elements are connected with two of the second data lines in the second data line group, which transmit the first signal, in a one-to-one correspondence manner;
second ends of two of the second switching elements are connected to two of the first data lines in the first data line group, which transmit the second signal, in a one-to-one correspondence manner, and second ends of the other two of the second switching elements are connected to two of the second data lines in the second data line group, which transmit the second signal, in a one-to-one correspondence manner.
6. The display panel according to claim 5, wherein, in the first data line group and the second data line group which are adjacent to each other, a control terminal of the first switching element connected to a first one of the first data lines in the first data line group and a control terminal of the second switching element connected to a first one of the second data lines in the second data line group are connected to different groups of the switch control signal lines;
a control terminal of the second switching element connected to a second one of the first data lines in the first data line group and a control terminal of the first switching element connected to a second one of the second data lines in the second data line group are connected to different groups of the switching control signal lines;
a control terminal of the first switching element connected to a third one of the first data lines in the first data line group and a control terminal of the second switching element connected to a third one of the second data lines in the second data line group are connected to different groups of the switching control signal lines;
the control terminal of the second switching element connected to the fourth of the first data lines in the first data line group and the control terminal of the first switching element connected to the fourth of the second data lines in the second data line group are connected to different groups of the switch control signal lines.
7. The display panel according to claim 5, wherein, in the first data line group and the second data line group which are adjacent to each other, a control terminal of the first switching element connected to a first one of the first data lines in the first data line group and a control terminal of the second switching element connected to a first one of the second data lines in the second data line group are connected to the same group of the switch control signal lines;
a control terminal of the second switching element connected to a second one of the first data lines in the first data line group and a control terminal of the first switching element connected to a second one of the second data lines in the second data line group are connected to the same group of the switch control signal lines;
a control terminal of the first switching element connected to a third one of the first data lines in the first data line group and a control terminal of the second switching element connected to a third one of the second data lines in the second data line group are connected to the same group of the switch control signal lines;
the control terminal of the second switching element connected to the fourth of the first data lines in the first data line group and the control terminal of the first switching element connected to the fourth of the second data lines in the second data line group are connected to the same group of the switch control signal lines.
8. The display panel according to claim 5, wherein the first switching element and the second switching element comprise a P-type thin film transistor and/or an N-type thin film transistor.
9. The display panel according to claim 5, wherein each of the first switch elements includes a first switch and a second switch, and each of the second switch elements includes a first switch and a second switch; each group of the switch control signal lines comprises a first switch control signal line and a second switch control signal line;
wherein a control terminal of the first switch of each of the first switching elements is connected to one of the first switch control signal lines; the control end of the second switch of each first switch element is connected with one second switch control signal line; the control end of the first switch of each second switch element is connected with one first switch control signal line; the control end of the second switch of each second switch element is connected with one second switch control signal line;
a first terminal of the first switch of each of the first switching elements and a first terminal of the second switch of each of the first switching elements are connected to the first signal terminal, and a first terminal of the first switch of each of the second switching elements and a first terminal of the second switch of each of the second switching elements are connected to the second signal terminal;
second ends of the first switch and the second switch of the two first switch elements are respectively connected with the two first data lines which transmit the first signal in each group of the first data line groups in a one-to-one correspondence manner; second ends of the first switches and the second switches of the other two first switch elements are respectively connected with two second data lines which transmit the first signal in each group of the second data lines in a one-to-one correspondence manner;
second ends of the first switches and the second switches of the two second switch elements are respectively connected with the two first data lines which transmit the second signals in each group of the first data line groups in a one-to-one correspondence manner; second ends of the first switch and the second switch of the other two second switch elements are respectively connected with the two second data lines which transmit the second signal in each group of the second data line groups in a one-to-one correspondence manner.
10. The display panel of claim 9, wherein the first switch is a PMOS transistor and the second switch is an NMOS transistor.
11. A driving method applied to the display panel according to any one of claims 1 to 10, comprising:
in the first data line group, a first signal and a second signal with opposite polarities are respectively supplied to two adjacent first data lines; in the second data line group, the first signal and the second signal with opposite polarities are supplied to two adjacent second data lines, so that in each pixel repeating unit, the polarity of the first data line connected to the sub-pixel in the fourth column is the same as the polarity of the second data line connected to the sub-pixel in the fifth column.
12. A display device characterized in that it comprises a display panel according to any one of claims 1 to 10.
CN201810148899.XA 2018-02-13 2018-02-13 Display panel and its driving method, display device Pending CN108198539A (en)

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Application publication date: 20180622