WO2017185871A1 - 一种显示面板的驱动方法、显示面板及显示装置 - Google Patents

一种显示面板的驱动方法、显示面板及显示装置 Download PDF

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Publication number
WO2017185871A1
WO2017185871A1 PCT/CN2017/074763 CN2017074763W WO2017185871A1 WO 2017185871 A1 WO2017185871 A1 WO 2017185871A1 CN 2017074763 W CN2017074763 W CN 2017074763W WO 2017185871 A1 WO2017185871 A1 WO 2017185871A1
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WIPO (PCT)
Prior art keywords
sub
pixels
data line
display panel
polarity
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PCT/CN2017/074763
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English (en)
French (fr)
Inventor
苏国火
孙志华
高玉杰
姚树林
刘宝玉
张旭
马伟超
张志豪
穆文凯
缪应蒙
何光泉
Original Assignee
京东方科技集团股份有限公司
北京京东方显示技术有限公司
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Application filed by 京东方科技集团股份有限公司, 北京京东方显示技术有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/564,335 priority Critical patent/US10643558B2/en
Publication of WO2017185871A1 publication Critical patent/WO2017185871A1/zh

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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
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
    • G09G2320/0214—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display with crosstalk due to leakage current of pixel switch in active matrix panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0252—Improving the response speed

Definitions

  • Embodiments of the present invention relate to a driving method of a display panel, a display panel, and a display device.
  • the charging rate and the leakage current of a pixel switch are a major factor limiting the display effect of a higher resolution size display panel.
  • the TFT process technology in the display panel cannot be improved, the display effect caused by the process is difficult to be improved.
  • the positive and negative polarities of each pixel respectively represent two different voltages, that is, the pixel voltage is a positive voltage and a negative voltage with respect to the common electrode voltage, respectively.
  • the row pixels are charged after a certain gate (Gate) is normally turned on, and the gate of the next row or rows is simultaneously turned on and then to the next row or below. A few lines of pixels are pre-charged.
  • the column inversion method When the column inversion method is used on the data line, that is, when the data line uses the same polarity signal in one frame, if the leakage current of the pixel switch (TFT) becomes large due to backlight illumination or temperature rise, etc.
  • TFT pixel switch
  • the data between the precharged line pixels and the normally charged line pixels is prone to nuisance and appears as a crosstalk phenomenon on the panel display.
  • the dot-reversal method is currently used on the data line, that is, the data line uses a signal of alternating positive polarity and negative polarity in one frame, although the dot-reverse method can significantly improve the Crosstalk phenomenon, but the polarity is performed. Inversion causes a problem of a decrease in the charging rate, which affects the overall brightness of the display and increases power consumption.
  • An embodiment of the present invention provides a driving method of a display panel, wherein the display panel includes a plurality of sub-pixels of N colors and a first data line arranged in a plurality of rows and columns, wherein N is greater than or equal to 2.
  • the plurality of sub-pixels includes a plurality of first sub-pixels connected to the first data line, the plurality of first sub-pixels including a plurality of first white sub-pixels and a plurality of first color sub-pixels
  • the driving method includes: sequentially loading a signal to the plurality of the first sub-pixels connected to the first data line in a scanning direction of a frame, so as to be connected to the first data line
  • Each of the first white sub-pixels is opposite in polarity to a signal loaded on the first sub-pixel located upstream of the scan direction and adjacent thereto; each of the first color sub-pixels is The signals loaded on the first sub-pixels upstream of the scanning direction and adjacent thereto are of the same polarity.
  • the display panel further includes a second data line, and each of the sub-pixels connected to the second data line is not white in color
  • the driving method further includes: at the one frame Each of the second sub-pixels connected to the second data line is loaded with a signal of the same polarity during a display time.
  • the sub-pixels of the N colors are cyclically arranged in each row, and N is an integer greater than 3.
  • the driving method further includes: in the display direction of the one frame, in the scanning direction
  • Each of the sub-pixels located in the most upstream first row applies a signal such that signal polarities of the plurality of sub-pixels in the first row are periodic with signal polarities of adjacent 2N of the sub-pixels Loop.
  • each adjacent two sub-pixels is grouped, and two sub-pixels in the same group have opposite signal polarities .
  • the N is an even number, and in each of the signal polarity periods of the adjacent 2N of the sub-pixels, the signal polarity of every two sub-pixels of the same color is the same.
  • the signal polarity of every two sub-pixels of the same color is opposite.
  • a display panel including: a first data line; a plurality of sub-pixels of N colors arranged in a plurality of rows and columns, wherein N is an integer greater than or equal to 2, and the plurality of sub-pixels includes a plurality of first sub-pixels connected to the first data line, the plurality of first sub-pixels comprising a plurality of first white sub-pixels and a plurality of first color sub-pixels; driving device configured to be in a frame Displaying, in the scanning direction, a plurality of the first sub-pixels connected to the first data line are sequentially loaded with signals, such that each of the first white sub-pixels connected to the first data line a polarity of a signal loaded on the first sub-pixel located upstream of and adjacent to the scanning direction; each of the first color sub-pixels is located upstream of the scanning direction and The signals loaded on the adjacent first sub-pixels have the same polarity.
  • the display panel further includes a second data line, and each of the sub-pixels connected to the second data line is not white in color, and the driving device is further configured to be in the one frame.
  • Loading time for each of the second sub-pixels connected to the second data line Signals of the same polarity.
  • the sub-pixels of the N colors are cyclically arranged in each row, and N is an integer greater than 3.
  • the driving device is further configured to apply a signal to each of the sub-pixels in the first row located in the most upstream direction in the display time of the one frame, so that the The signal polarities of the plurality of sub-pixels are cycled with the signal polarities of the adjacent 2N of the sub-pixels.
  • each adjacent two sub-pixels is grouped, and two sub-pixels in the same group have opposite signal polarities .
  • the N is an even number, and in each of the signal polarity periods of the adjacent 2N of the sub-pixels, the signal polarity of every two sub-pixels of the same color is the same.
  • the N is an even number, and in the signal polarity period of the adjacent 2N of the sub-pixels, the signal polarity of every two sub-pixels of the same color is opposite.
  • sub-pixels of the same color are staggered by positions of M sub-pixels in adjacent rows, the M being an integer greater than zero and less than N.
  • the N colors of the plurality of sub-pixels are white, red, green, and blue;
  • sub-pixels of the same color are staggered by the position of the two sub-pixels.
  • the first data line is located in a gap between adjacent two rows of the sub-pixels, and the plurality of first sub-pixels connected to the first data line are located in different rows and located The left and right sides of the first data line.
  • each of the first sub-pixels in the odd rows is located to the right of the first data line, and each of the first sub-pixels in the even rows is located to the left of the first data line; or ,
  • Each of the first sub-pixels in the odd rows is located on the left side of the first data line, and each of the first sub-pixels in the even rows is located on the right side of the first data line.
  • each of the first color sub-pixels connected to the first data line has the same color.
  • a further embodiment of the present invention provides a display device comprising the display panel of any of the above.
  • FIG. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention.
  • FIGS. 2a and 2b are schematic diagrams showing a structure in which a data line and a sub-pixel in a display panel adopt Z-inversion according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of the polarity of a signal applied to each sub-pixel unit in a display time of a display panel according to an embodiment of the present disclosure
  • 3c to 3d are schematic diagrams showing polarities of signals applied to respective sub-pixel units in a display time of a display panel according to an embodiment of the present invention
  • 3 e is a schematic diagram of a polarity of a signal applied to each sub-pixel unit in a display time of a display panel according to an embodiment of the present disclosure
  • Figure 4 is a schematic view of the polarity inversion in Figure 3a;
  • FIG. 5 is a schematic diagram of a display device according to an embodiment of the present invention.
  • Embodiments of the present invention provide a driving method of a display panel, a display panel, and a display device, which can improve the Crosstalk problem of the display panel while ensuring display brightness.
  • a display panel provided by an embodiment of the present invention is first described for convenience of description.
  • a display panel provided by an embodiment of the present invention includes a plurality of sub-pixels arranged in an array, and a plurality of sub-pixels include white (W) sub-pixels.
  • the color of the sub-pixels in the display panel includes three colors of red (R), green (G), and blue (B) for synthesizing white light in addition to white (W).
  • R red
  • G green
  • B blue
  • Y yellow
  • N sub-pixels are included in the plurality of sub-pixels.
  • Sub-pixels of color N is an integer greater than 3, and sub-pixels of N colors are arranged in a loop in each row.
  • RGBW sub-pixels are generally used to form one pixel unit, and the RGBW sub-pixels constituting one pixel unit are arranged in the row direction, but it is not excluded to form a pixel.
  • the RGBW sub-pixels of the cell are arranged in two or more rows, respectively.
  • the arrangement of four sub-pixels of RGBW in the same row may not be limited, for example, WRGB, RGWB, or the like may be arranged.
  • positions of M sub-pixels may be staggered between sub-pixels of the same color, and M is an integer greater than 0 and less than N.
  • the position of the M sub-pixels is shifted, for example, the M sub-pixel positions may be moved to the left, or the M sub-pixel positions may be moved to the right, which is not limited herein.
  • a plurality of sub-pixels in the display panel may be white (W) sub-pixels, red (R) sub-pixels, and green (G) sub-pixels. And blue (B) sub-pixels; in adjacent rows, the positions of the two sub-pixels can be staggered between sub-pixels of the same color.
  • a plurality of data lines disposed in a column gap of each sub-pixel are generally included.
  • a plurality of data lines are connected to sources of transistors in a plurality of word pixels.
  • the connection between the data line and the sub-pixels may be a normal structure, a dual gate structure, or a z-inversion structure, and is not limited herein.
  • the Normal structure means that one data line is disposed on one side of each sub-pixel column, and one data line is connected to each sub-pixel on one side through a pixel switch for providing signals to each sub-pixel on one side.
  • the Dual Gate structure refers to two gate lines disposed at line gaps of each sub-pixel, and data lines are spaced apart at column gaps of each sub-pixel, and one data signal line is connected to each sub-pixel on both sides through a pixel switch; Dual Gate Compared with the Normal structure, the number of data lines is doubled and the number of gate lines is doubled.
  • each data line is located in a gap between each sub-pixel column, and one data line alternately connects sub-pixels located on the left and right sides of different rows. That is, one data line is only connected to one sub-pixel in one row, and one row is connected to the left sub-pixel, and the other row is connected to the right sub-pixel; the Z-inversion structure is only increased compared to the Normal structure. A data line.
  • the advantage of the Z-inversion structure is that it can achieve the point of the panel display as much as possible on the basis of power saving and guaranteed charging rate.
  • Sexual inversion (Dot) that is, the top, bottom, left, and right sub-pixels of any one sub-pixel have the same polarity and are opposite in polarity to the central sub-pixel.
  • connection relationship between the data line and the sub-pixel may adopt a positive Z-inversion structure: each sub-pixel in the odd-numbered row and the left side of the sub-pixel Data line connection, each sub-pixel in an even row is connected with a data line located on the right side of the sub-pixel, that is, each sub-pixel connected to one data line is alternately arranged right, left, and right in the direction from the top to the bottom of the data line. .
  • connection relationship between the data line and the sub-pixel may adopt an inverse Z-inversion structure: each sub-pixel in the odd-numbered row and the right side of the sub-pixel
  • the data lines are connected, and each sub-pixel in the even-numbered row is connected to the data line located on the left side of the sub-pixel, that is, each sub-pixel connected to one data line is alternately arranged in the direction from the top to the bottom of the data line.
  • the two Z-inversion structures are not limited to the two Z-inversion structures.
  • the driving method of the display panel provided by the embodiment of the present invention includes, for example:
  • each of the first data lines connected to the white sub-pixels in the display panel loading a signal connected to the first data line when loading a signal to the white sub-pixel connected to the first data line a row of sub-pixels loaded with signals of opposite polarity; when loading signals to other sub-pixels connected to the first data line other than the white sub-pixels, loading the same polarity as that of the connected previous sub-pixels signal.
  • the polarity is reversed in consideration of the effect of reducing the charging rate caused by the polarity inversion while ensuring the accuracy and authenticity of the display color of the sub-pixel of the display color.
  • the setting is performed on the white sub-pixels, and the sub-pixels of the other colors are not reversed in polarity, even if the charging rate of the white sub-pixel is decreased, since the transmittance of the white sub-pixel is large, the overall brightness of the panel is The effect is not too large, so that the display brightness can be improved, and the Crosstalk problem of the display panel can be improved.
  • the above driving method provided by the embodiment of the present invention may further include: for the display time of one frame, for the second connection that is not connected to the white sub-pixel Data line: Loads the same polarity signal for each row of sub-pixels connected to the second data line, that is, adopts column inversion, which can ensure the charging rate and save power consumption.
  • the Z-inversion structure shown in FIG. 2a and FIG. 2b in which two columns of four data lines are not connected to white sub-pixels, the two columns adopt column inversion, and the other two columns are based on the position of white sub-pixels. Use positive and negative polarity alternately reverse.
  • N is an integer greater than 3.
  • the above driving method provided by the embodiment of the present invention may further include: The polarity of the signal applied to each sub-pixel in the first row of sub-pixels is cycled with the signal polarity of the adjacent 2N sub-pixels.
  • a pixel unit PG of N colors of the same row is composed, and in the first row, the signal polarity of the adjacent two pixel units is cycled.
  • R sub-pixels ie, red sub-pixels
  • G sub-pixels ie, green sub-pixels
  • B sub-pixels ie, blue sub-pixels
  • W sub-pixels ie, white sub-pixels
  • each adjacent two sub-pixels is grouped, and two in a group of SGs.
  • the signal polarity of each sub-pixel is opposite; and in the signal polarity period of the 2N sub-pixels, the signal polarities of the two sub-pixels of the same color are all the same, or the signal polarities of the two sub-pixels of the same color are all opposite.
  • the display panel is composed of R sub-pixels, G sub-pixels, B sub-pixels, and W sub-pixels, and the polarity of the signal loaded with eight sub-pixels (RGBWRGBW) in the first row is cycled.
  • RGBWRGBW eight sub-pixels
  • the R sub-pixel and the G sub-pixel are a group of SG
  • the B sub-pixel and the W sub-pixel are a group of SG
  • the signal polarity of the R sub-pixel and the G sub-pixel is opposite
  • B The sub-pixel and the W sub-pixel have opposite signal polarities; in the first row, four sub-pixels of adjacent RGBW are used as one pixel unit PG, and the first sub-pixel unit PG has R sub-pixels, G sub-pixels, B sub-pixels, and W sub-pixels.
  • the signal polarity of the pixel is the same as or opposite to the signal polarity of the R sub-pixel, the G sub-pixel, the B sub-pixel, and the sub-pixel in the second pixel unit, respectively.
  • the first line refers to the first row of sub-pixel rows located most upstream in the scanning direction.
  • the polarity of the signal applied to each sub-pixel in the first row of sub-pixels is only an example, for example.
  • the signal inversion can also be performed according to the actual design, and will not be described here.
  • the following describes the driving method of the display panel provided by the embodiment of the present invention by taking a specific example of the Z-inversion structure as a connection between the data line and the sub-pixel.
  • the R sub-pixel, the G sub-pixel, the B sub-pixel, and the W sub-pixel and the data line shown in FIG. 2a are based on a positive Z-inversion structure, and two pixels in the first line.
  • the polarity of the signal loaded by the unit PG is cyclically cycled, and the signals of the same color sub-pixels in the two pixel units PG are opposite in polarity, that is, the R sub-pixel and the second pixel unit PG in the first pixel unit PG.
  • the signal polarity of R in the opposite is opposite, the signal polarity of the G sub-pixel in the first pixel unit PG and the G sub-pixel in the second pixel unit PG are opposite, and the B sub-pixel and the second pixel in the first pixel unit PG
  • the signal polarity of the B sub-pixels in the cell PG is opposite, and the signal polarity of the W sub-pixels in the first pixel unit PG and the W sub-pixels in the second pixel unit PG are opposite.
  • the signal polarity of the sub-pixels in the first row is cycled by +-+--+-+.
  • the scanning direction of the sub-pixels is from top to bottom as indicated by the arrows, and the arrangement direction of the data lines is from right to left as indicated by the arrows.
  • the 4n+1th column data lines (for example, the data lines D1, D5, D9, etc.) are not connected to the white sub-pixels, and the polarities of the signals applied to the sub-pixels connected to the data lines are the same; the 4n+2th column The data lines (for example, the data lines D2, D6, D10, etc.) are connected to the white sub-pixels, and the polarity of the signal applied to the sub-pixels connected to the data lines is two lines and one reversed.
  • the 4th+3th column data line (for example, the data lines D3, D7, D11, etc.) is connected to the white sub-pixel, and the sub-pixels connected to the data line are connected to the remaining rows of the sub-pixels of the first row.
  • the polarity of the signal applied to the pixel is 1 + 2 Line positive and negative polarity inversion of two rows and one inversion; the 4n + 4 column data lines (for example, data lines D4, D8, D12, etc.) are not associated with white subpixels
  • the polarity of the signal applied on the connection is the same.
  • n is an integer greater than or equal to zero.
  • all sub-pixels connected to data lines D1 and D4 are loaded with positive polarity; all sub-pixels connected to data lines D5 and D8 are loaded with negative polarity; pair and data lines D2, D3, D6 and D7
  • the connected white sub-pixel loads the signal, it loads the signal with the opposite polarity of the signal loaded by the connected previous sub-pixel.
  • the signals loaded on the two sub-pixels connected to the data lines D1 and D5 have opposite polarities, and the polarities of the signals loaded on the two sub-pixels connected to the data lines D4 and D8 are opposite to the data lines D2 and D6.
  • the signals loaded on the two connected sub-pixels are opposite in polarity, and the signals loaded on the two sub-pixels connected to the data lines D3 and D7 are opposite in polarity; here, with the white sub-image
  • the data line connected by the prime is the first data line, and the data line not connected to any one of the white sub-pixels is the second data line.
  • the sub-pixel connected to the first data line may be referred to as a first sub-pixel, and the sub-pixel connected to the second sub-pixel may be referred to as a second sub-pixel; the first sub-pixel may include a first white sub-pixel and a first color Subpixel.
  • a plurality of first sub-pixels connected to the first data lines are sequentially loaded with signals, so that Each of the first white sub-pixels of a data line connection is opposite in polarity to a signal loaded on a first sub-pixel located upstream of the scanning direction and adjacent thereto; each of the first color sub-pixels is The signals loaded on the first sub-pixels upstream of the scanning direction and adjacent thereto are of the same polarity.
  • Each of the second sub-pixels connected to the second data line eg, data lines D1, D4, D5, and D8 is loaded with a signal of the same polarity during the display time of the one frame.
  • n in the 4n+1th column is an odd column and n is an even column, and a pair of positive and negative polarities OP (operational amplifier) can be shared.
  • operational amplifier n in the 4n + 2 column is an odd column and n is an even column can share a pair of positive and negative polarity OP
  • n in the 4n + 3 column is an odd column and n is even
  • One column can share a pair of positive and negative polarities OP
  • a column in which the n in the 4n+4th column is an odd number and a column in which n is an even number can share a pair of positive and negative polarities OP.
  • the signal polarity of the sub-pixels in the first row is cycled by +--+-++-.
  • the 4n+1th column data line is not connected to the white sub-pixel, and the polarity of the signal applied to the sub-pixel connected to the data line is the same;
  • the 4n+2 column data line is connected to the white sub-pixel, and the data line is connected
  • the polarity of the signal applied to the connected sub-pixel is a two-line inversion two-line positive and negative polarity inversion mode;
  • the fourth n+3 column data line is connected to the white sub-pixel, and the sub-pixel connected to the data line is connected
  • the polarity of the signal applied to the sub-pixels of the remaining rows except the sub-pixels of the first row is the 1+2Line positive and negative polarity inversion of the two rows and one inversion;
  • the 4n+4th column data lines are not associated with the white sub-pixels.
  • the pixel is connected, and the polarity of the signal applied to the sub-pixel connected to the data line is the same.
  • the signals applied to the sub-pixels connected to the data lines D1 and D4 are negative polarity
  • the signals applied to the sub-pixels connected to the data lines D5 and D8 are positive, connected to the data lines D2, D3, D6 and D7.
  • a signal having an opposite polarity to the signal loaded by the connected previous sub-pixel is loaded.
  • the polarity of the signals applied on the sub-pixels connected to the data lines D1 and D5 in the same row is opposite, the polarities of the signals applied on the sub-pixels connected to the data lines D4 and D8 are opposite, and the sub-pixels connected to the data lines D2 and D6
  • the signal applied on the opposite polarity is opposite to the data line D3
  • the signals applied to the sub-pixels connected to the D7 are opposite in polarity; thus, when the source driver chip (Data Driver IC) performs charge sharing, n in the 4n+1th column is an odd column and n is an even number.
  • One column can share a pair of positive and negative polarities OP
  • n in the 4n+2th column is an odd number one column
  • n is an even number
  • one column can share a pair of positive and negative polarity OP
  • n in the 4n+3th column is an odd number.
  • One column and n columns having an even number may share a pair of positive and negative polarities OP
  • n in the 4n+4th column is an odd column and n is an even column to share a pair of positive and negative polarities OP.
  • the signal polarity of R in the same is the same, the G sub-pixel in the first pixel unit PG and the signal polarity of G in the second pixel unit PG are the same, and the B sub-pixel and the second pixel unit PG in the first pixel unit PG The signal polarity of B in the same is the same, and the W sub-pixel in the first pixel unit PG and the signal polarity of W in the second pixel unit PG are the same.
  • the signal polarities of the sub-pixels in the first row are cycled with a period of +-+-+-+-.
  • the 4n+1th column data line is not connected to the white sub-pixel, and the polarity of the signal applied to the sub-pixel connected to the data line is the same;
  • the 4n+2 column data line is connected to the white sub-pixel, and the data line is connected
  • the polarity of the signal applied to the connected sub-pixel is a two-line inversion two-line positive and negative polarity inversion mode;
  • the fourth n+3 column data line is connected to the white sub-pixel, and the sub-pixel connected to the data line is connected
  • the polarity of the signal applied to the sub-pixels of the remaining rows except the sub-pixels of the first row is the two-row and one-inversion 1+2Line positive and negative polarity inversion modes;
  • the 4n+4th column data lines are not associated with the white sub-pixels.
  • the pixel is connected, and the polarity of the signal applied to the sub-pixel connected to the data line is the same.
  • the signals applied to the sub-pixels connected to the data lines D1 and D5 are negative polarity
  • the signals applied to the sub-pixels connected to the data lines D4 and D8 are positive, connected to the data lines D2, D3, D6 and D7.
  • a signal having an opposite polarity to the signal loaded by the connected previous sub-pixel is loaded.
  • the signals applied on the two sub-pixels have the same polarity, and the signals applied to the two sub-pixels connected to the data lines D3 and D7 have the same polarity; thus driving at the source
  • the 4n+1th column and the 4n+4th column may share a pair of positive and negative polarity OPs, and the 4n+2 column alone uses a pair of positive and negative polarity OPs.
  • a pair of positive and negative polarities OP are used alone.
  • the signal polarity of the sub-pixels in the first row is cycled by +-++--+.
  • the 4n+1th column data line is not connected to the white sub-pixel, and the polarity of the signal applied to the sub-pixel connected to the data line is the same;
  • the 4n+2 column data line is connected to the white sub-pixel, and the data line is connected
  • the polarity of the signal applied to the connected sub-pixel is a two-line inversion two-line positive and negative polarity inversion mode;
  • the fourth n+3 column data line is connected to the white sub-pixel, and the sub-pixel connected to the data line is connected
  • the polarity of the signal applied to the sub-pixels of the remaining rows except the sub-pixels of the first row is a two-row and one-inversion 1+2Line positive and negative polarity inversion mode;
  • the 4n+4th column data line is not white
  • the sub-pixel is connected, and the polarity of the signal applied to the sub-
  • the signal applied to the sub-pixels connected to the data lines D1 and D5 is positive polarity
  • the signals applied to the sub-pixels connected to the data lines D4 and D8 are negative polarity
  • the sub-pixels connected to the data lines D2, D3, D6 and D7 are connected.
  • a signal when a signal is applied to the connected white sub-pixel, a signal having an opposite polarity to the signal loaded by the connected previous sub-pixel is loaded.
  • the signals applied on the two sub-pixels connected to the data lines D1 and D4 are opposite in polarity
  • the signals applied on the two sub-pixels connected to the data lines D5 and D8 are opposite in polarity, and are connected to the data lines D2 and D6.
  • the signals applied on the two sub-pixels have the same polarity, and the signals applied on the two sub-pixels connected to the data lines D3 and D7 have the same polarity; thus, when the source driver chip (Data Driver IC) performs charge sharing
  • the 4n+1th column and the 4n+4th column may share a pair of positive and negative polarities OP, the 4n+2th column alone uses a pair of positive and negative polarities OP, and the 4n+3th column uses a pair of positive and negative polarities separately.
  • OP the source driver chip
  • two pixel units PG are in the first row.
  • the polarity of the loaded signal is cyclically cycled, and the signals of the same color sub-pixels in the two pixel units PG are opposite in polarity, that is, the R sub-pixels and the second pixel units PG in the first pixel unit PG.
  • the signal polarity of R is reversed, the signal polarity of the G sub-pixel in the first pixel unit PG is opposite to the G sub-pixel in the second pixel unit PG, and the B sub-pixel and the second pixel unit in the first pixel unit PG.
  • the signal polarity of the B sub-pixels in the PG is opposite, and the signal polarity of the W sub-pixels in the first pixel unit PG and the W sub-pixels in the second pixel unit PG are opposite.
  • the signal polarity of the sub-pixels in the first row is cycled with a period of +-+--+-+.
  • the scanning direction of the sub-pixels is from top to bottom as indicated by the arrows, and the arrangement direction of the data lines is from right to left as indicated by the arrows.
  • the 4n+1th column data line is connected to the white sub-pixel, and the polarity of the signal applied to the sub-pixel connected to the data line is the same as the 2Line positive and negative polarity inversion of the two rows and one inversion; 4n+ The two columns of data lines are not connected to the white sub-pixels, and the signals applied to the sub-pixels connected to the data lines are of the same polarity; the fourth n+3 column data lines are not connected to the white sub-pixels, and are connected to the data lines.
  • the signals applied on the sub-pixels have the same polarity; the 4n+4th column data lines are connected to the white sub-pixels, and the sub-pixels connected to the data lines are applied on the sub-pixels of the remaining rows except the sub-pixels of the first row.
  • the polarity of the signal is a two-row and one-inverted 1+2Line positive and negative polarity inversion.
  • the signals applied to the sub-pixels connected to the data lines D3 and D6 are positive, and the signals applied to the sub-pixels connected to the data lines D2 and D7 are negative, connected to the data lines D1, D4, D5 and D8.
  • the signals applied on the two sub-pixels are opposite in polarity, and the signals applied on the two sub-pixels connected to the data lines D4 and D8 are opposite in polarity; thus, when the source driver chip (Data Driver IC) performs charge sharing In the 4n+1th column, n is an odd column and n is an even column, and a pair of positive and negative polarities OP may be shared. In the 4n+4th column, n is an odd column and n is an even column.
  • a column in which the n in the 4n+2th column is an odd number and a column in which n is an even number may share a pair of positive and negative polarities OP
  • n in the 4n+3th column is an odd-numbered column and n is A pair of even columns can share a pair of positive and negative polarities OP.
  • each rectangular frame represents one sub-pixel unit; the letter R, G, B or W in each rectangular box represents the color of the sub-pixel. It is red, green, blue or white; the symbol "+” or "-" in each rectangle indicates that the polarity of the signal applied to the sub-pixel unit is positive or negative.
  • an embodiment of the present invention further provides a display device, which is provided by the embodiment of the present invention.
  • the display device may be: a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, Any product or part that has a display function, such as a navigator.
  • a display function such as a navigator.
  • the display device reference may be made to the embodiment of the above display panel, and the repeated description is omitted.
  • the display device provided by the embodiment of the present invention is the liquid crystal display device 1
  • the display device includes, for example, the above-mentioned display panel 10, and further includes a backlight unit 20 for providing a light source to the display panel 10, as shown in FIG.
  • the driving method, the display panel and the display device of the display panel provided by the embodiment of the invention include white sub-pixels in the display panel; and data lines connected to the white sub-pixels in the display panel for one frame of display time: When loading a signal to a connected white sub-pixel, loading a signal having a polarity opposite to that of the connected previous sub-pixel; when loading a signal to other sub-pixels connected except the white sub-pixel, loading and connecting the previous line A sub-pixel loaded signal with the same polarity of the signal.
  • the polarity is reversed in consideration of the effect of reducing the charging rate caused by the polarity inversion while ensuring the accuracy and authenticity of the display color of the sub-pixel of the display color.
  • the setting is performed on the white sub-pixels, and the sub-pixels of the other colors are not reversed in polarity, even if the charging rate of the white sub-pixel is decreased, since the transmittance of the white sub-pixel is large, the overall brightness of the panel is The effect is not too large, so that the display brightness can be improved, and the Crosstalk problem of the display panel can be improved.

Abstract

公开了一种显示面板的驱动方法、显示面板及显示装置。显示面板包括呈多行多列排布的N种颜色的多个子像素(R，G，B，W)以及第一数据线(D2，D3，D6，D7)，其中N为大于等于2的整数，多个子像素(R，G，B，W)包括与第一数据线(D2，D3，D6，D7)连接的多个第一子像素，多个第一子像素包括多个第一白色子像素(W)和多个第一彩色子像素(R；G；B)。驱动方法包括：在一帧的显示时间内，在扫描方向上，对与第一数据线(D2，D3，D6，D7)连接的多个第一子像素依次加载信号，使得与第一数据线(D2，D3，D6，D7)连接的每个第一白色子像素(W)与在扫描方向上位于其上游且与其相邻的第一子像素上加载的信号极性相反；每个第一彩色子像素(R；G；B)与在扫描方向的位于其上游且与其相邻的第一子像素上加载的信号极性相同。这样，在保证显示亮度的同时改善显示面板的串扰问题。

Description

一种显示面板的驱动方法、显示面板及显示装置 技术领域
本发明实施例涉及一种显示面板的驱动方法、显示面板及显示装置。
背景技术
在高分辨的诸如液晶面板的显示面板中，充电率和像素开关(TFT)的漏电流是限制更高分辨率尺寸显示面板的显示效果的一大因素。在显示面板中的TFT制程工艺无法提高的条件下，工艺上导致的显示效果不良难以改善。在显示面板的驱动电路方面，各像素的正负极性分别代表两种不同电压，即像素电压相对公共电极电压分别是正电压和负电压。一般地，为提高显示面板中的充电率，会在某行栅极(Gate)正常打开后给行像素充电的同时，会将下一行或某几行的栅极同时打开后给下一行或下几行像素进行预充电。
在数据线(data line)上采用列反转方式即在一帧画面中数据线使用同一极性的信号时，若像素开关(TFT)的漏电流因背光照射或温度上升等原因而变大时，在预充电的行像素与正常充电的行像素之间的数据容易产生窜扰，在面板显示上表现为串扰(Crosstalk)现象。为了改善Crosstalk现象，目前在数据线上采用点反转方式即在一帧画面中数据线使用正极性和负极性交替的信号，虽然采用点反转方式可以明显改善Crosstalk现象，但在进行极性反转时会带来充电率降低的问题而影响显示的整体亮度，且会增加功耗。
发明内容
本发明的一实施例提供一种显示面板的驱动方法，其中，所述显示面板包括呈多行多列排布的N种颜色的多个子像素以及第一数据线，其中N为大于等于2的整数，所述多个子像素包括与所述第一数据线连接的多个第一子像素，所述多个第一子像素包括多个第一白色子像素和多个第一彩色子像素，所述驱动方法包括：在一帧的显示时间内，在扫描方向上，对与所述第一数据线连接的多个所述第一子像素依次加载信号，使得与所述第一数据线连接 的每个所述第一白色子像素与在所述扫描方向上位于其上游且与其相邻的所述第一子像素上加载的信号极性相反；每个所述第一彩色子像素与在所述扫描方向的位于其上游且与其相邻的所述第一子像素上加载的信号极性相同。
在一个示例中，所述显示面板还包括第二数据线，与所述第二数据线连接的每个所述子像素的颜色均不为白色，所述驱动方法还包括：在所述一帧的显示时间内，对与所述第二数据线连接的每个所述第二子像素加载相同极性的信号。
在一个示例中，所述N种颜色的子像素在每行中循环排列，N为大于3的整数，所述驱动方法还包括：在所述一帧的显示时间内，对所述扫描方向上位于最上游的第一行中的各所述子像素施加信号，使得所述第一行中的所述多个子像素的信号极性以相邻的2N个所述子像素的信号极性为周期进行循环。
在一个示例中，在所述相邻的2N个所述子像素的信号极性周期中，以每相邻两个所述子像素为一组，同一组中的两个子像素的信号极性相反。
在一个示例中，所述N为偶数，在所述相邻的2N个所述子像素的信号极性周期中，颜色相同的每两个子像素的信号极性相同。
在一个示例中，其中，所述N为偶数，在所述相邻的2N个所述子像素的信号极性周期中，颜色相同的每两个子像素的信号极性相反。
本发明的另一实施例提供一种显示面板，包括：第一数据线；呈多行多列排布的N种颜色的多个子像素，其中N为大于等于2的整数所述多个子像素包括与所述第一数据线连接的多个第一子像素，所述多个第一子像素包括多个第一白色子像素和多个第一彩色子像素；驱动装置，构造为在一帧的显示时间内，在扫描方向上，对与所述第一数据线连接的多个所述第一子像素依次加载信号，使得与所述第一数据线连接的每个所述第一白色子像素与在所述扫描方向上位于其上游且与其相邻的所述第一子像素上加载的信号极性相反；每个所述第一彩色子像素与在所述扫描方向的位于其上游且与其相邻的所述第一子像素上加载的信号极性相同。
在一个示例中，所述显示面板还包括第二数据线，与所述第二数据线连接的每个所述子像素的颜色均不为白色，所述驱动装置进一步构造为在所述一帧的显示时间内，对与所述第二数据线连接的每个所述第二子像素加载相 同极性的信号。
在一个示例中，所述N种颜色的子像素在每行中循环排列，N为大于3的整数。
所述驱动装置进一步构造为在所述一帧的显示时间内，对所述扫描方向上位于最上游的第一行中的各所述子像素施加信号，使得所述第一行中的所述多个子像素的信号极性以相邻的2N个所述子像素的信号极性为周期进行循环。
在一个示例中，在所述相邻的2N个所述子像素的信号极性周期中，以每相邻两个所述子像素为一组，同一组中的两个子像素的信号极性相反。
在一个示例中，所述N为偶数，在所述相邻的2N个所述子像素的信号极性周期中，颜色相同的每两个子像素的信号极性相同。
在一个示例中，所述N为偶数，在所述相邻的2N个所述子像素的信号极性周期中，颜色相同的每两个子像素的信号极性相反。
在一个示例中，在相邻行内，相同颜色的子像素错开M个子像素的位置，所述M为大于0且小于N的整数。
在一个示例中，所述多个子像素的N种颜色为白色、红色、绿色和蓝色；
在相邻行内，相同颜色的子像素错开两个子像素的位置。
在一个示例中，所述第一数据线位于相邻的两行所述子像素之间的间隙内，且与所述第一数据线连接的所述多个第一子像素位于不同行且位于所述第一数据线的左右两侧。
在一个示例中，奇数行中的各所述第一子像素位于所述第一数据线的右侧，偶数行中的各所述第一子像素位于所述第一数据线的左侧；或，
奇数行中的各所述第一子像素位于所述第一数据线的左侧，偶数行中的各所述第一子像素位于所述第一数据线的右侧。
在一个示例中，与所述第一数据线连接的每个所述第一彩色子像素的颜色相同。
本发明的又一实施例提供一种显示装置，其中，包括上述任一项所述的显示面板。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例，而非对本发明的限制。
图1为本发明实施例提供的显示面板的结构示意图；
图2a和图2b分别为本发明实施例提供显示面板中的数据线与各个子像素采用Z-inversion的结构的示意图；
图3a至图3b为本发明实施例提供的显示面板在一帧显示时间内各个子像素单元上施加的信号极性的示意图；
图3c至图3d为本发明实施例提供的显示面板在一帧显示时间内各个子像素单元上施加的信号极性的示意图；
图3e为本发明实施例提供的显示面板在一帧显示时间内各个子像素单元上施加的信号极性的示意图；
图4为图3a中与极性反转的示意图；
图5为本发明实施例提供的显示装置的示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例提供了一种显示面板的驱动方法、显示面板及显示装置，能够在保证显示亮度的同时改善显示面板的Crosstalk问题。
由于显示面板的驱动翻转方式和像素的排列相关，为了方便描述先介绍本发明实施例提供的一种显示面板。
例如，本发明实施例提供的一种显示面板，包括呈阵列排列的多个子像素，多个子像素中包含白色(W)子像素。例如，在显示面板中的子像素的颜色除了白色(W)，还包括红色(R)，绿色(G)和蓝色(B)三种用于合成白光的基色。当然，也不排除包含诸如黄色(Y)等其他颜色。
例如，在本发明实施例提供的上述显示面板中，多个子像素中包含N种 颜色的子像素，N为大于3的整数，N种颜色的子像素在每行中循环排列。以显示面板中的子像素颜色由RGBW组成为例，在显示面板中，一般采用RGBW子像素组成一像素单元，且组成一像素单元的RGBW子像素呈行方向排列，但也不排除组成一像素单元的RGBW子像素分别排布在两行或者多行中。且同一行中的RGBW四个子像素的排列方式可以并不做限定，例如可以WRGB、RGWB等排列方式。
例如，在本发明实施例提供的上述显示面板中，在相邻行内，相同颜色的子像素之间可以错开M个子像素的位置，该M为大于0且小于N的整数。这里指的错开M个子像素的位置，例如，可以是向左挪动M个子像素位置，也可以是向右挪动M个子像素位置，在此不做限定。
例如，在本发明实施例提供的上述显示面板中，例如图1所示，在显示面板中的多个子像素可以为白色(W)子像素、红色(R)子像素、绿色(G)子像素和蓝色(B)子像素；在相邻行内，相同颜色的子像素之间可以错开两个子像素的位置。
例如，在本发明实施例提供的上述显示面板中，一般还会包括：设置在各子像素的列间隙的多条数据线。例如，多条数据线与多个字像素中的晶体管的源极连接。数据线和子像素之间的连接关系可以采用普通(Normal)结构和双栅(Dual Gate)结构，也可以采用之字型(Z-inversion)结构等连接方式，在此不做限定。
Normal结构是指在各子像素列的一侧均设置一条数据线，一条数据线与一侧的各子像素通过像素开关连接，用于对一侧的各子像素提供信号。
Dual Gate结构是指在各子像素的行间隙处设置两条栅线，在各子像素的列间隙处间隔设置数据线，一条数据信号线与两侧的各子像素通过像素开关连接；Dual Gate结构相较于Normal结构，数据线的数量减少一倍，栅线数量增加一倍。
Z-inversion结构中，各数据线位于各子像素列之间的间隙内，一条数据线交替连接位于不同行的左右两侧的子像素。即一条数据线仅与一行中的一个子像素连接，且在某行会与左侧的子像素连接，在另一行会与右侧的子像素连接；Z-inversion结构相较于Normal结构仅增加了一条数据线。Z-inversion结构的优点在于可以在省电和保证充电率的基础上尽量实现面板显示的点极 性反转(Dot)，即任何一个子像素的上下左右四个子像素极性相同且均与中心子像素极性相反。
例如，在本发明实施例提供的上述显示面板中，数据线和子像素之间的连接关系，如图2a所示，可以采用正Z-inversion结构：奇数行中各子像素与位于子像素左侧的数据线连接，偶数行中各子像素与位于子像素右侧的数据线连接，即与一条数据线连接的各子像素在该数据线从上至下的延伸方向上依次右左右左交替排列。
或者，在本发明实施例提供的上述显示面板中，数据线和子像素之间的连接关系，如图2b所示，可以采用反Z-inversion结构：奇数行中各子像素与位于子像素右侧的数据线连接，偶数行中各子像素与位于子像素左侧的数据线连接，即与一条数据线连接的各子像素在该数据线从上至下的延伸方向上依次左右左右交替排列。
在图2a和图2b中仅是举例说明两种Z-inversion结构，在本发明实施例提供的上述显示面板中并不局限于上述两种Z-inversion结构。
针对本发明实施例提供的上述包含白色子像素的显示面板，本发明实施例提供的一种显示面板的驱动方法，例如包括：
在一帧的显示时间内，针对显示面板中与白色子像素连接的各第一数据线：在对与第一数据线连接的白色子像素加载信号时，加载与该第一数据线连接的上一行子像素加载的信号极性相反的信号；在对除了白色子像素以外的与该第一数据线连接的其他子像素加载信号时，加载与连接的上一行子像素加载的信号极性相同的信号。
本发明实施例提供的上述驱动方法中，考虑到为了降低极性反转带来的充电率降低的影响，同时保证显示颜色的子像素在显示色彩的准确性和真实性，将极性反转设置在白色子像素上进行，其他颜色的子像素不进行极性反转，即使白色子像素的充电率有所下降，但由于白色子像素的透过率较大，其对于面板的整体亮度的影响也不大，这样兼顾了显示亮度的同时，可以改善显示面板的Crosstalk问题。
例如，在本发明实施例提供的上述显示面板的驱动方法中，根据面板中各子像素的颜色排布，以及数据线与子像素的连接关系，可能会出现所有的数据线均会与白色子像素连接的情况，也会出现部分数据线不与白色子像素 连接的情况。
例如，在显示面板中存在不与白色子像素连接的数据线时，本发明实施例提供的上述驱动方法，还可以包括：在一帧的显示时间内，针对不与白色子像素连接的第二数据线：对与第二数据线连接的每行子像素加载相同极性的信号，即采用列反转的方式，这样可以保证充电率且节省功耗。例如图2a和图2b所示的Z-inversion结构，其中每四列数据线中就有两列不与白色子像素连接，则这两列采用列反转，另外两列根据白色子像素的位置采用正负极性交替反转。
例如，在显示面板中包含N种颜色的子像素，且N种颜色的子像素在每行中循环排列时，N为大于3的整数；本发明实施例提供的上述驱动方法还可以包括：对首行子像素中的各子像素施加的信号极性，以相邻的2N个子像素的信号极性为周期进行循环。例如，在显示面板中以同一行的N个颜色的子像素组成一像素单元PG，在首行中以相邻两个像素单元的信号极性为周期进行循环。例如在显示面板中由R子像素(即，红色子像素)、G子像素(即，绿色子像素)、B子像素(即，蓝色子像素)和W子像素(即，白色子像素)组成，在首行中以八个子像素所加载的信号极性为周期进行循环。
进一步地，在本发明实施例提供的上述驱动方法，当N为偶数时，在该2N个子像素的信号极性周期中，以每相邻的两个子像素为一组，在一组SG中两个子像素的信号极性相反；且在该2N个子像素的信号极性周期中，颜色相同的两个子像素的信号极性全部相同，或颜色相同的两个子像素的信号极性全部相反。例如在显示面板由R子像素、G子像素、B子像素和W子像素组成，在首行中以八个子像素(RGBWRGBW)所加载的信号极性为周期进行循环。在RGBW子像素中，如图3a所示，R子像素和G子像素为一组SG，B子像素和W子像素为一组SG，R子像素和G子像素的信号极性相反，B子像素和W子像素的信号极性相反；首行中以相邻的RGBW四个子像素作为一个像素单元PG，第一个像素单元PG中R子像素、G子像素、B子像素和W子像素的信号极性与第二个像素单元中的R子像素、G子像素、B子像素和子像素的信号极性分别相同或分别相反。这里，首行是指在扫描方向上位于最上游的第一行子像素行。
上述对首行子像素中的各子像素施加的信号极性方式只是举例说明，例 如，还可以根据实际设计，进行信号反转的变换，在此不做赘述。
下面以数据线和子像素之间的连接关系为Z-inversion结构为例，以几个具体实例说明本发明实施例提供的显示面板的驱动方法。
实例一：
如图3a和图3b所示，以图2a所示的R子像素、G子像素、B子像素和W子像素和数据线采用正Z-inversion结构为基础，在首行中以两个像素单元PG所加载的信号极性为周期进行循环，且两个像素单元PG中相同颜色的子像素所加载的信号极性相反，即第一像素单元PG中的R子像素与第二像素单元PG中的R的信号极性相反，第一像素单元PG中的G子像素与第二像素单元PG中的G子像素的信号极性相反，第一像素单元PG中的B子像素与第二像素单元PG中的B子像素的信号极性相反，第一像素单元PG中的W子像素与第二像素单元PG中的W子像素的信号极性相反。
例如，如图3a所示，在首行中子像素的信号极性以+-+--+-+为周期进行循环。其中，子像素的扫描方向如箭头所示从上至下，数据线的排列方向如箭头所指从右至左。第4n+1列数据线(例如，数据线D1、D5、D9等)不与白色子像素连接，与该数据线连接连接的子像素上施加的信号的极性均相同；第4n+2列数据线(例如，数据线D2、D6、D10等)与白色子像素连接，与该数据线连接连接的子像素上施加的信号的极性为两行一反转的2Line正负极性反转方式；第4n+3列数据线(例如，数据线D3、D7、D11等)与白色子像素连接，与该数据线连接连接的子像素中除第一行的子像素外的其余行的子像素上施加的信号的极性为两行一反转的1+2Line正负极性反转方式；第4n+4列数据线(例如，数据线D4、D8、D12等)不与白色子像素连接，上施加的信号的极性均相同。这里，n为大于或等于0的整数。例如与数据线D1和D4连接的全部子像素加载的信号均为正极性；与数据线D5和D8连接的全部子像素加载的信号均为负极性；对与数据线D2、D3、D6和D7连接的白色子像素加载信号时，加载与连接的上一行子像素加载的信号极性相反的信号。可见同一行子像素中，与数据线D1和D5相连的两个子像素上加载的信号极性相反，与数据线D4和D8相连的两个子像素上加载的信号极性相反与数据线D2和D6相连的两个子像素上加载的信号极性相反，与数据线D3和D7相连的两个子像素上加载的信号极性相反；这里，与白色子像 素连接的数据线为第一数据线，不与任一个白色子像素连接的数据线为第二数据线。与第一数据线连接的子像素可称为第一子像素，与第二子像素连接的子像素可称为第二子像素；第一子像素中可以包括第一白色子像素和第一彩色子像素。也就是，在一帧的显示时间内，在扫描方向上，对与第一数据线(例如，数据线D2、D3、D6和D7)连接的多个第一子像素依次加载信号，使得与第一数据线连接的每个第一白色子像素与在所述扫描方向上位于其上游且与其相邻的第一子像素上加载的信号极性相反；每个所述第一彩色子像素与在所述扫描方向的位于其上游且与其相邻的所述第一子像素上加载的信号极性相同。在所述一帧的显示时间内，对与所述第二数据线(例如，数据线D1、D4、D5和D8)连接的每个所述第二子像素加载相同极性的信号。这样在源极驱动芯片(Data Driver IC)做电荷分配(charge sharing)时，第4n+1列中的n为奇数的一列和n为偶数的一列可共用一对正负极性OP(operational amplifier，运算放大器)，第4n+2列中的n为奇数的一列和n为偶数的一列可共用一对正负极性OP，第4n+3列中的n为奇数的一列和n为偶数的一列可共用一对正负极性OP，第4n+4列中的n为奇数的一列和n为偶数的一列可共用一对正负极性OP。
例如，如图3b所示，在首行中子像素的信号极性以+--+-++-为周期进行循环。第4n+1列数据线不与白色子像素连接，与该数据线连接连接的子像素上施加的信号的极性均相同；第4n+2列数据线与白色子像素连接，与该数据线连接连接的子像素上施加的信号的极性为两行一反转的2Line正负极性反转方式；第4n+3列数据线与白色子像素连接，与该数据线连接连接的子像素中除第一行的子像素外其余行的子像素上施加的信号的极性为两行一反转的1+2Line正负极性反转方式；第4n+4列数据线不与白色子像素连接，与该数据线连接连接的子像素上施加的信号的极性均相同。例如，与数据线D1和D4相连的子像素上施加的信号为负极性，与数据线D5和D8相连的子像素上施加的信号为正极性，与数据线D2、D3、D6和D7相连的子像素中，在对连接的白色子像素加载信号时，加载与连接的上一行子像素加载的信号极性相反的信号。可见同一行中与数据线D1和D5连接的子像素上施加的信号极性相反，与数据线D4和D8连接的子像素上施加的信号极性相反，与数据线D2和D6连接的子像素上施加的信号极性相反，与数据线D3和 D7连接的子像素上施加的信号极性相反；这样在源极驱动芯片(Data Driver IC)做电荷分配(charge sharing)时，第4n+1列中的n为奇数的一列和n为偶数的一列可共用一对正负极性OP，第4n+2列中的n为奇数的一列和n为偶数的一列可共用一对正负极性OP，第4n+3列中的n为奇数的一列和n为偶数的一列可共用一对正负极性OP，第4n+4列中的n为奇数的一列和n为偶数的一列可共用一对正负极性OP。
实例二：
如图3c和图3d所示，以图2a所示的R子像素、G子像素、B子像素和W子像素和数据线采用的正Z-inversion结构为基础，在首行中以两个像素单元PG所加载的信号极性为周期进行循环，且两个像素单元PG中相同颜色子像素所加载的信号极性相同，即第一像素单元PG中的R子像素与第二像素单元PG中的R的信号极性相同，第一像素单元PG中的G子像素与第二像素单元PG中的G的信号极性相同，第一像素单元PG中的B子像素与第二像素单元PG中的B的信号极性相同，第一像素单元PG中的W子像素与第二像素单元PG中的W的信号极性相同。
例如，如图3c所示，在首行中子像素的信号极性以+-+-+-+-为周期进行循环。第4n+1列数据线不与白色子像素连接，与该数据线连接连接的子像素上施加的信号的极性均相同；第4n+2列数据线与白色子像素连接，与该数据线连接连接的子像素上施加的信号的极性为两行一反转的2Line正负极性反转方式；第4n+3列数据线与白色子像素连接，与该数据线连接连接的子像素除第一行的子像素外的其余行的子像素上施加的信号的极性为两行一反转的1+2Line正负极性反转方式；第4n+4列数据线不与白色子像素连接，与该数据线连接连接的子像素上施加的信号的极性均相同。例如与数据线D1和D5相连的子像素上施加的信号为负极性，与数据线D4和D8相连的子像素上施加的信号均为正极性，与数据线D2、D3、D6和D7相连的两个子像素中，在对连接的白色子像素加载信号时，加载与连接的上一行子像素加载的信号极性相反的信号。可见同一行中与数据线D1和D4相连的两个子像素上施加的信号极性相反，与数据线D5和D8相连的两个子像素上施加的信号极性相反，与数据线D2和D6相连的两个子像素上施加的信号极性相同，与数据线D3和D7相连的两个子像素上施加的信号极性相同；这样在源极驱动 芯片(Data Driver IC)做电荷分配(charge sharing)时，第4n+1列和第4n+4列可共用一对正负极性OP，第4n+2列单独使用一对正负极性OP，第4n+3列单独使用一对正负极性OP。
例如，如图3d所示，在首行中子像素的信号极性以+--++--+为周期进行循环。第4n+1列数据线不与白色子像素连接，与该数据线连接连接的子像素上施加的信号的极性均相同；第4n+2列数据线与白色子像素连接，与该数据线连接连接的子像素上施加的信号的极性为两行一反转的2Line正负极性反转方式；第4n+3列数据线与白色子像素连接，与该数据线连接连接的子像素中除第一行的子像素外的其余行的子像素上施加的信号的极性为两行一反转的1+2Line正负极性反转方式；第4n+4列数据线不与白色子像素连接，与该数据线连接连接的子像素上施加的信号的极性均相同。例如与数据线D1和D5相连的子像素上施加的信号为正极性，与数据线D4和D8相连的子像素上施加的信号为负极性，与数据线D2、D3、D6和D7相连的子像素中，在对连接的白色子像素加载信号时，加载与连接的上一行子像素加载的信号极性相反的信号。可见同一行中，与数据线D1和D4相连的两个子像素上施加的信号极性相反，与数据线D5和D8相连的两个子像素上施加的信号极性相反，与数据线D2和D6相连的两个子像素上施加的信号极性相同，与数据线D3和D7相连的两个子像素上施加的信号极性相同；这样在源极驱动芯片(Data Driver IC)做电荷分配(charge sharing)时，第4n+1列和第4n+4列可共用一对正负极性OP，第4n+2列单独使用一对正负极性OP，第4n+3列单独使用一对正负极性OP。
实例三：
如图3e所示，以图2b所示的R子像素、G子像素、B子像素和W子像素和数据线采用的反Z-inversion结构为基础，在首行中以两个像素单元PG所加载的信号极性为周期进行循环，且两个像素单元PG中相同颜色的子像素所加载的信号极性相反，即，第一像素单元PG中的R子像素与第二像素单元PG中的R的信号极性相反，第一像素单元PG中的G子像素与第二像素单元PG中的G子像素的信号极性相反，第一像素单元PG中的B子像素与第二像素单元PG中的B子像素的信号极性相反，第一像素单元PG中的W子像素与第二像素单元PG中的W子像素的信号极性相反。
例如，如图3e所示，在首行中子像素的信号极性以+-+--+-+为周期进行循环。其中，子像素的扫描方向如箭头所示从上至下，数据线的排列方向如箭头所指从右至左。第4n+1列数据线与白色子像素连接，与该数据线连接连接的子像素上施加的信号的极性均相同为两行一反转的2Line正负极性反转方式；第4n+2列数据线不与白色子像素连接，与该数据线连接连接的子像素上施加的信号的极性均相同；第4n+3列数据线不与白色子像素连接，与该数据线连接连接的子像素上施加的信号的极性均相同；第4n+4列数据线与白色子像素连接，与该数据线连接连接的子像素除第一行的子像素外其余行的子像素上施加的信号的极性为两行一反转的1+2Line正负极性反转方式。例如，与数据线D3和D6相连的子像素上施加的信号为正极性，与数据线D2和D7相连的子像素上施加的信号均为负极性，与数据线D1、D4、D5和D8相连的子像素中，在对连接的白色子像素加载信号时，加载与连接的上一行子像素加载的信号极性相反的信号。可见同一行中，与数据线D1和D5相连的两个子像素上施加的信号极性相反，与数据线D2和D6相连的两个子像素上施加的信号极性相反，与数据线D3和D7相连的两个子像素上施加的信号极性相反，与数据线D4和D8相连的两个子像素上施加的信号极性相反；这样在源极驱动芯片(Data Driver IC)做电荷分配(charge sharing)时，第4n+1列中的n为奇数的一列和n为偶数的一列可共用一对正负极性OP，第4n+4列中的n为奇数的一列和n为偶数的一列可共用一对正负极性OP，第4n+2列中的n为奇数的一列和n为偶数的一列可共用一对正负极性OP，第4n+3列中的n为奇数的一列和n为偶数的一列可共用一对正负极性OP。
需要注意的是，在本申请的全部附图中，在图1-3e中，每个矩形框表示一个子像素单元；每个矩形框中的字母R、G、B或W表示子像素的颜色为红色、绿色、蓝色或白色；每个矩形框中的符号“+”或“-”表示施加到该子像素单元上的信号的极性为正性或负性。
基于同一发明构思，本发明实施例还提供了一种显示装置，包括本发明实施例提供的上述显示面板，该显示装置可以为：手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。该显示装置的实施可以参见上述显示面板的实施例，重复之处不再赘述。在 本发明实施例提供的显示装置为液晶显示装置1时，该显示装置除了包括上述显示面板10，例如还包括用于对显示面板10提供光源的背光源单元20，如图5所示。
本发明实施例提供的上述显示面板的驱动方法、显示面板及显示装置，在显示面板中包含白色子像素；在一帧的显示时间内，针对显示面板中与白色子像素连接的各数据线：在对连接的白色子像素加载信号时，加载与连接的上一行子像素加载的信号极性相反的信号；在对除了白色子像素以外连接的其他子像素加载信号时，加载与连接的上一行子像素加载的信号极性相同的信号。本发明实施例提供的上述驱动方法中，考虑到为了降低极性反转带来的充电率降低的影响，同时保证显示颜色的子像素在显示色彩的准确性和真实性，将极性反转设置在白色子像素上进行，其他颜色的子像素不进行极性反转，即使白色子像素的充电率有所下降，但由于白色子像素的透过率较大，其对于面板的整体亮度的影响也不大，这样兼顾了显示亮度的同时，可以改善显示面板的Crosstalk问题。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。
本申请要求于2016年4月28日递交的中国专利申请第201610278245.X号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (18)

  1. 一种显示面板的驱动方法，其中，所述显示面板包括呈多行多列排布的N种颜色的多个子像素以及第一数据线，其中N为大于等于2的整数，所述多个子像素包括与所述第一数据线连接的多个第一子像素，所述多个第一子像素包括多个第一白色子像素和多个第一彩色子像素，
    所述驱动方法包括：在一帧的显示时间内，在扫描方向上，对与所述第一数据线连接的多个所述第一子像素依次加载信号，使得与所述第一数据线连接的每个所述第一白色子像素与在所述扫描方向上位于其上游且与其相邻的所述第一子像素上加载的信号极性相反；每个所述第一彩色子像素与在所述扫描方向的位于其上游且与其相邻的所述第一子像素上加载的信号极性相同。
  2. 如权利要求1所述的显示面板的驱动方法，其中，所述显示面板还包括第二数据线，与所述第二数据线连接的每个所述子像素的颜色均不为白色，所述驱动方法还包括：
    在所述一帧的显示时间内，对与所述第二数据线连接的每个所述第二子像素加载相同极性的信号。
  3. 如权利要求1或2所述的显示面板的驱动方法，其中，所述N种颜色的子像素在每行中循环排列，N为大于3的整数，
    所述驱动方法还包括：在所述一帧的显示时间内，对所述扫描方向上位于最上游的第一行中的各所述子像素施加信号，使得所述第一行中的所述多个子像素的信号极性以相邻的2N个所述子像素的信号极性为周期进行循环。
  4. 如权利要求3所述的显示面板的驱动方法，其中，所述N为偶数，在所述相邻的2N个所述子像素的信号极性周期中，以每相邻的两个子像素为一组，同一组中两个子像素的信号极性相反。
  5. 如权利要求3所述的显示面板的驱动方法，其中，所述N为偶数，在所述相邻的2N个所述子像素的信号极性周期中，颜色相同的每两个子像素的信号极性相同。
  6. 如权利要求3所述的显示面板的驱动方法，其中，所述N为偶数，在所述相邻的2N个所述子像素的信号极性周期中，颜色相同的每两个子像 素的信号极性相反。
  7. 一种显示面板，包括：
    第一数据线；
    呈多行多列排布的N种颜色的多个子像素，其中N为大于等于2的整数所述多个子像素包括与所述第一数据线连接的多个第一子像素，所述多个第一子像素包括多个第一白色子像素和多个第一彩色子像素；
    驱动装置，构造为在一帧的显示时间内，在扫描方向上，对与所述第一数据线连接的多个所述第一子像素依次加载信号，使得与所述第一数据线连接的每个所述第一白色子像素与在所述扫描方向上位于其上游且与其相邻的所述第一子像素上加载的信号极性相反；每个所述第一彩色子像素与在所述扫描方向的位于其上游且与其相邻的所述第一子像素上加载的信号极性相同。
  8. 如权利要求7所述的显示面板，其中，所述显示面板还包括第二数据线，与所述第二数据线连接的每个所述子像素的颜色均不为白色，
    所述驱动装置进一步构造为在所述一帧的显示时间内，对与所述第二数据线连接的每个所述第二子像素加载相同极性的信号。
  9. 如权利要求7或8所述的显示面板，其中，所述N种颜色的子像素在每行中循环排列，N为大于3的整数，
    所述驱动装置进一步构造为在所述一帧的显示时间内，对所述扫描方向上位于最上游的第一行中的各所述子像素施加信号，使得所述第一行中的所述多个子像素的信号极性以相邻的2N个所述子像素的信号极性为周期进行循环。
  10. 如权利要求9所述的显示面板，其中，在所述相邻的2N个所述子像素的信号极性周期中，以每相邻两个所述子像素为一组，同一组中的两个子像素的信号极性相反。
  11. 如权利要求10所述的显示面板，其中，所述N为偶数，在所述相邻的2N个所述子像素的信号极性周期中，颜色相同的每两个子像素的信号极性相同。
  12. 如权利要求10所述的显示面板，其中，所述N为偶数，在所述相邻的2N个所述子像素的信号极性周期中，颜色相同的每两个子像素的信号 极性相反。
  13. 如权利要求9至12中任一项所述的显示面板，其中，在相邻行内，相同颜色的子像素错开M个子像素的位置，所述M为大于0且小于N的整数。
  14. 如权利要求7至13中任一项所述的显示面板，其中，所述多个子像素的N种颜色为白色、红色、绿色和蓝色；
    在相邻行内，相同颜色的子像素错开两个子像素的位置。
  15. 如权利要求7至14中任一项所述的显示面板，其中，所述第一数据线位于相邻的两行所述子像素之间的间隙内，且与所述第一数据线连接的所述多个第一子像素位于不同行且位于所述第一数据线的左右两侧。
  16. 如权利要求15所述的显示面板，其中，奇数行中的各所述第一子像素位于所述第一数据线的右侧，偶数行中的各所述第一子像素位于所述第一数据线的左侧；或，
    奇数行中的各所述第一子像素位于所述第一数据线的左侧，偶数行中的各所述第一子像素位于所述第一数据线的右侧。
  17. 如权利要求7至16中任一项所述的显示面板，其中，与所述第一数据线连接的每个所述第一彩色子像素的颜色相同。
  18. 一种显示装置，其中，包括权利要求7至17中任一项所述的显示面板。
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