WO2019119811A1 - 显示面板的驱动方法、驱动装置及显示装置 - Google Patents

显示面板的驱动方法、驱动装置及显示装置 Download PDF

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Publication number
WO2019119811A1
WO2019119811A1 PCT/CN2018/097932 CN2018097932W WO2019119811A1 WO 2019119811 A1 WO2019119811 A1 WO 2019119811A1 CN 2018097932 W CN2018097932 W CN 2018097932W WO 2019119811 A1 WO2019119811 A1 WO 2019119811A1
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Prior art keywords
pixel
sub
driving
pixels
unit
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PCT/CN2018/097932
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English (en)
French (fr)
Inventor
黄北洲
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惠科股份有限公司
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Priority to US16/158,694 priority Critical patent/US10789903B2/en
Publication of WO2019119811A1 publication Critical patent/WO2019119811A1/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
    • G09G3/3622—Control of matrices with row and column drivers using a passive matrix
    • G09G3/3629—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric liquid crystals
    • G09G3/364—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric liquid crystals with use of subpixels
    • 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
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3696—Generation of voltages supplied to electrode drivers

Definitions

  • the present application relates to the field of display technologies, and in particular, to a driving method, a driving device, and a display device for a display panel.
  • An exemplary vertical alignment (VA) liquid crystal display device when displaying a screen, maintains a certain deflection angle of the liquid crystal molecules, so that the transmittance of light is different at different viewing angles, causing the user to view the picture from different viewing angles. You will feel the color shift phenomenon of the difference in the color of the picture.
  • VA vertical alignment
  • the current common practice is to divide the pixel electrode of the RGB sub-pixel in each pixel unit into two independent pixel electrodes, and apply different driving voltages to the two pixel electrodes to improve the color shift.
  • this method due to the increase in the number of pixel electrodes, it is necessary to redesign more metal traces or TFT (Thin Film Transistor) components to drive the display panel, and the metal traces and TFT elements are opaque, so this The method sacrifices the opaque open area, affects the transmittance of the panel, and increases the backlight cost.
  • TFT Thin Film Transistor
  • another method is to apply two different high and low driving voltage signals to each adjacent two pixel units. Specifically, at the same time, each adjacent two sub-children The pixels are applied with driving voltages of different polarities. In this way, the positive and negative polarities of the high voltage of the same column of sub-pixels are not matched, that is, the number of sub-pixels of the positive high voltage in the same column does not match the number of the negative high voltage sub-pixels.
  • a driving method of a display panel comprising: setting a plurality of pixel groups such that each of the pixel groups includes two rows of adjacent pixel units; and each adjacent two rows of the same row of pixel units Applying driving voltages of opposite polarities to the pixels, and applying driving voltages of opposite polarities to the corresponding sub-pixels of each of the adjacent two of the pixel groups; and causing the first pixel unit and the second pixel unit to be in the display panel Adjacent setting; respectively applying a driving voltage of a different voltage level to the sub-pixels in the first pixel unit and the sub-pixels in the second pixel unit; wherein the driving method further comprises: for each of the pixels in the same pixel group The unit applies a driving voltage of the same polarity, and applies a driving voltage of opposite polarity to each adjacent two sub-pixels in the same pixel unit; wherein the driving method further comprises: within each adjacent two frames of display time, A driving voltage of opposite polarity is alternately applied to the same sub-pixel.
  • the pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, which are sequentially arranged; the pair of sub-pixels are applied to each of the adjacent two of the pixel groups.
  • An opposite driving voltage comprising: applying a driving voltage of opposite polarity to each of the adjacent ones of the two pixel groups, the second of each of the two adjacent pixel groups Sub-pixels apply driving voltages of opposite polarities, and apply opposite polarity driving voltages to each of the adjacent two of the pixel groups;
  • Applying a driving voltage of opposite polarity to each adjacent two sub-pixels in the same pixel unit includes: applying a driving voltage of the same polarity to the first sub-pixel and the third sub-pixel in the same pixel unit And applying a driving voltage opposite to the polarity of the first sub-pixel to the second sub-pixel in the same pixel unit.
  • the driving voltages of different voltage levels are respectively applied to the sub-pixels in the first pixel unit and the sub-pixels in the second pixel unit, including: in the first pixel unit The sub-pixel applies a driving voltage of a preset first voltage level; and applies a driving voltage of a preset second voltage level to the sub-pixels in the second pixel unit.
  • a driving device for a display panel comprising: a grouping module, configured to set a plurality of pixel groups, wherein each of the pixel groups comprises two rows of adjacent pixel units; and the driving module comprises a first driving unit and a second driving And a third driving unit, wherein the first driving unit is configured to respectively apply driving voltages of opposite polarities to each adjacent two rows of sub-pixels in the same row of pixel units; and the second driving unit is configured to Applying opposite polarity driving voltages to corresponding sub-pixels of two adjacent pixel groups; the third driving unit is configured to be used for sub-pixels in the first pixel unit and sub-pixels in the second pixel unit The pixels respectively apply driving voltages of different voltage levels; wherein the first pixel unit and the second pixel unit are disposed adjacent to each other in the display panel.
  • the driving module further includes: a fourth driving unit configured to apply driving voltages of the same polarity to each of the pixel units in the same pixel group; and a fifth driving unit configured to use the same A driving voltage of opposite polarity is applied to each adjacent two sub-pixels in the pixel unit.
  • the pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel arranged in sequence;
  • the second driving unit is further configured to be used in each of the two adjacent pixel groups Applying opposite polarity driving voltages to the two first sub-pixels, applying opposite polarity driving voltages to two of the two adjacent ones of the adjacent pixel groups, and for each adjacent Two of the two of the pixel groups apply a driving voltage of opposite polarity;
  • the fifth driving unit is further configured to: the first sub-pixel and the third in the same pixel unit
  • the sub-pixels apply driving voltages of the same polarity, and a driving voltage opposite to the polarity of the first sub-pixels is applied to the second sub-pixels in the same pixel unit.
  • the third driving unit is further configured to: apply a driving voltage of a preset first voltage level to the sub-pixels in the first pixel unit; and to sub-pixels in the second pixel unit A driving voltage of a preset second voltage level is applied.
  • the driving module further includes a sixth driving unit, configured to alternately apply driving voltages of opposite polarities to the same sub-pixel in each adjacent two-frame display time.
  • a display device comprising a display panel and a driving device of the display panel according to any of the above.
  • the driving method, the driving device, and the display device of the display panel described above are such that the number of sub-pixels to which a positive polarity high voltage level driving voltage is applied in each column is equal to the number of sub-pixels to which a negative polarity high voltage level driving voltage is applied, so that V The com voltage is protected from parasitic capacitance, ensuring the correctness of the image signal and avoiding color shift or image quality abnormalities.
  • FIG. 1 is a schematic flow chart of a driving method of a display panel according to an embodiment
  • FIG. 2 is a schematic diagram of driving voltages of a plurality of pixel units of a display panel of an embodiment
  • FIG. 3 is a schematic diagram of driving voltages of respective sub-pixels in a plurality of pixel units of a display panel of an embodiment
  • FIG. 4 is a schematic diagram of driving voltages of respective sub-pixels in a plurality of pixel units of a display panel of another embodiment
  • FIG. 5a is a schematic diagram of driving voltages of a plurality of pixel units when a display panel of one embodiment displays a specific screen
  • FIG. 5b is a schematic diagram of driving voltages of a plurality of pixel units when another display screen is displayed on the display panel of one embodiment
  • FIG. 5c is a schematic diagram of driving voltages of a plurality of pixel units when the display panel of one embodiment displays another specific screen;
  • FIG. 5d is a schematic diagram of driving voltages of a plurality of pixel units when another display screen is displayed by the display panel of one embodiment
  • FIG. 5 e is a schematic diagram of driving voltages of a plurality of pixel units when another display screen is displayed by the display panel of one embodiment
  • FIG. 5f is a schematic diagram of driving voltages of a plurality of pixel units when the display panel of one embodiment displays another specific screen;
  • FIG. 5g is a schematic diagram of driving voltages of a plurality of pixel units when the display panel of one embodiment displays another specific screen;
  • FIG. 5h is a schematic diagram of driving voltages of a plurality of pixel units when another display screen is displayed on the display panel of one embodiment
  • FIG. 6 is a schematic structural view of a driving device of a display panel according to an embodiment
  • Fig. 7 is a schematic structural view of a display device of an embodiment.
  • a driving method of a display panel includes: setting a plurality of pixel groups such that each of the pixel groups includes two rows of adjacent pixel units; and each adjacent two of the same row of pixel units Applying driving voltages of opposite polarities to the row sub-pixels respectively, applying driving voltages of opposite polarities to corresponding sub-pixels of each of the adjacent two of the pixel groups; causing the first pixel unit and the second pixel unit to be in the display Adjacent settings are made in the panel; driving voltages of different voltage levels are respectively applied to the sub-pixels in the first pixel unit and the sub-pixels in the second pixel unit.
  • a driving voltage is respectively applied to each sub-pixel in the display panel such that the driving voltages of each adjacent two rows of sub-pixels in the same row of pixel units are opposite in polarity, and that each adjacent two of the pixel groups are The driving voltages of the corresponding sub-pixels are opposite in polarity, and the driving voltage voltage levels of the sub-pixels in the first pixel unit and the sub-pixels in the second pixel unit are different.
  • a driving device for a display panel includes: a grouping module, configured to set a plurality of pixel groups, such that each of the pixel groups includes two rows of adjacent pixel units; and the driving module includes the first a driving unit, a second driving unit, and a third driving unit; the first driving unit is configured to respectively apply driving voltages of opposite polarities to each adjacent two rows of sub-pixels in the same row of pixel units; a unit for applying a driving voltage of opposite polarity to each of the adjacent sub-pixels of the two adjacent pixel groups; the third driving unit for sub-pixels and locations in the first pixel unit The sub-pixels in the second pixel unit respectively apply driving voltages of different voltage levels; wherein the first pixel unit and the second pixel unit are disposed adjacent to each other in the display panel.
  • the display panel has a plurality of pixel units distributed in a matrix, the plurality of pixel units including a plurality of first pixel units and a plurality of second pixel units, the first pixel unit being disposed adjacent to the second pixel unit And each of the pixel units includes a plurality of sub-pixels.
  • a display device includes a display panel and a driving device of the above display panel.
  • FIG. 1 is a schematic flowchart of a driving method of a display panel according to an embodiment of the present application.
  • the driving method is applied to a display panel.
  • the driving method 10 includes the following steps:
  • a plurality of pixel units in the display panel are divided into a plurality of pixel groups such that each of the pixel groups includes two rows of adjacent pixel units.
  • the first pixel unit and the second pixel unit are disposed adjacent to each other in the display panel.
  • step S102, step S103, and step S104 can be performed simultaneously.
  • driving voltages are respectively applied to respective sub-pixels in the display panel during the display time of the same frame picture, so that the driving voltages of each adjacent two rows of sub-pixels in the same row of pixel units are opposite in polarity, so that each adjacent two The driving voltages of the corresponding sub-pixels in the pixel group are opposite in polarity, and the voltage levels of the driving voltages of the sub-pixels in the first pixel unit and the sub-pixels in the second pixel unit are different.
  • different voltage levels include a high voltage level and a low voltage level, such that a number of sub-pixels of a positive voltage driving voltage of a high voltage level and a high voltage applied to each of the row pixels of the display panel can be caused.
  • the number of sub-pixels of the negative polarity driving voltage of the level is equal, so that the V com voltage is protected from the parasitic capacitance, thereby ensuring the correctness of the image signal and avoiding occurrence of color shift or image quality abnormality.
  • the "row” and “column” of the embodiment of the present application indicate two arrangement directions perpendicular to each other, for example, “row” means vertical, “column” means horizontal; for example, “row” means horizontal, and “column” means Portrait. That is, the “row” in the embodiment of the present application may be a “column” as understood by those of ordinary skill in the art. The “column” in the embodiment of the present application may also be a “row” as understood by those skilled in the art. .
  • the display panel 20 has a plurality of pixel units distributed in a matrix, the plurality of pixel units including a plurality of first pixel units P1 and a plurality of second pixel units P2, the first pixel unit and the The second pixel unit is disposed adjacent to each other, or the first pixel unit and the second pixel unit are alternately arranged.
  • each of the pixel units includes a plurality of sub-pixels, for example, each of the pixel units includes a plurality of sub-pixels having different colors, and each pixel unit includes a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, respectively. These three sub-pixels.
  • (i, j) represents the jth row of the i-th column
  • (i, j+1) represents the j+1th row of the i-th column
  • (i+1, j) represents the j-th row of the i+1th column
  • the four rows of pixel units are divided into two pixel groups, which are an nth group and an n+1th group, respectively, so that each pixel group includes two rows of phases.
  • Adjacent pixel unit wherein R1, G1, and B1 respectively represent a red sub-pixel, a green sub-pixel, and a blue sub-pixel in the first pixel unit.
  • R2, G2, and B2 represent a red sub-pixel, a green sub-pixel, and a blue sub-pixel, respectively, in the second pixel unit.
  • H represents the first voltage level
  • L represents the second voltage level
  • + represents positive polarity
  • - represents negative polarity.
  • (i, j) represents the jth row of the i-th column
  • (i, j+1) represents the j+1th row of the i-th column
  • (i+1, j) represents the j-th row of the i+1th column
  • driving voltages of opposite polarities are applied to each adjacent two rows of sub-pixels in the same row of pixel units, for example, R sub-pixels of the j-th row, G sub-pixels of the j-th row, and B of the j-th row
  • the sub-pixels all belong to the j-th row pixel unit
  • the G sub-pixels of the j-th row are adjacent to the R sub-pixel of the j-th row and the B sub-pixel of the j-th row, respectively, and a negative polarity is applied to the G sub-pixel of the j-th row.
  • the driving voltage applies a positive driving voltage to the R sub-pixel of the jth row and the B sub-pixel of the jth row; or, a positive driving voltage is applied to the G sub-pixel of the jth row, and the R of the jth row
  • the sub-pixel and the B sub-pixel of the j-th row apply a driving voltage of a negative polarity such that the driving voltages of each adjacent two rows of sub-pixels in the same row of pixel units are opposite in polarity.
  • the positive polarity refers to the driving voltage being greater than the preset common voltage V com of the display panel, that is, the voltage difference between the driving voltage and the V com voltage is greater than zero;
  • the negative polarity refers to the driving voltage being less than V com The voltage, that is, the voltage difference between the driving voltage and the V com voltage is less than zero.
  • each pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel arranged in sequence, and then two of each adjacent two pixel groups
  • the first sub-pixels are corresponding sub-pixels
  • two second sub-pixels in each adjacent two pixel groups are corresponding sub-pixels
  • two third sub-pixels in each adjacent two pixel groups are Corresponding subpixels.
  • a driving voltage of opposite polarity is applied to the first sub-pixel of each adjacent two pixel groups, and a driving voltage of opposite polarity is applied to the second sub-pixel of each adjacent two pixel groups, and for each A third sub-pixel of two adjacent pixel groups applies a driving voltage of opposite polarity.
  • the nth group and the n+1th group are two adjacent pixel groups, and a positive driving voltage is applied to the R sub-pixels in the nth group, and the R sub-pixels in the n+1th group are applied.
  • a negative driving voltage a negative driving voltage is applied to the G sub-pixels in the nth group, a positive driving voltage is applied to the G sub-pixels in the n+1th group; and a B sub-pixel is applied to the nth group
  • the positive driving voltage applies a negative driving voltage to the B sub-pixels in the n+1th group.
  • a negative driving voltage is applied to the R sub-pixels in the nth group
  • a positive driving voltage is applied to the R sub-pixels in the n+1th group
  • a positive driving is applied to the G sub-pixels in the n-th group.
  • a negative driving voltage is applied to the G sub-pixels in the n+1th group; a negative driving voltage is applied to the B sub-pixels in the nth group, and a positive polarity is applied to the B sub-pixels in the n+1th group Drive voltage.
  • the driving voltages of the corresponding sub-pixels in each adjacent two pixel groups are opposite in polarity.
  • driving voltages of different voltage levels are respectively applied to the sub-pixels in the first pixel unit and the sub-pixels in the second pixel unit.
  • the driving voltage levels corresponding to the first pixel unit and the second pixel unit are respectively set in advance, and, for example, the first driving voltage level corresponding to the first pixel unit and the second driving voltage level corresponding to the second pixel unit are preset.
  • a driving voltage of a preset first voltage level is applied to the sub-pixels in the first pixel unit; and a driving voltage of a preset second voltage level is applied to the sub-pixels in the second pixel unit.
  • one of the first driving voltage level and the second driving voltage level is a high voltage level, and the other is a low voltage level.
  • the first driving voltage level is higher than the second driving voltage level, or the first driving voltage level is lower than the second driving voltage level.
  • each column in FIG. 3 has three sub-pixels representing a positive high voltage level (H+) and three sub-pixels representing a negative high voltage level (H-).
  • the same number of positive and negative sub-pixels on the high voltage level can protect the V com voltage from parasitic capacitance, thus ensuring the correctness of the image signal and avoiding color shift or image quality abnormality.
  • the driving method further includes: applying a driving voltage having the same polarity to each of the pixel units in the same pixel group, and applying an opposite polarity driving to each adjacent two sub-pixels in the same pixel unit. Voltage. For example, applying a driving voltage of the same polarity to corresponding sub-pixels in each of the pixel units in the same pixel group, applying the same polarity to the first sub-pixel and the third sub-pixel in the same pixel unit a driving voltage, and applying a driving voltage opposite to a polarity of the first sub-pixel to the second sub-pixel in the same pixel unit. For another example, as shown in FIG.
  • a positive driving voltage is applied to each of the R sub-pixels of each pixel unit in the nth group, and a negative driving voltage is applied to the G sub-pixels of each pixel unit in the nth group.
  • the driving voltages of the G sub-pixels and the B sub-pixels have opposite polarities, that is, the driving voltages of each two adjacent sub-pixels in the same pixel unit are opposite in polarity.
  • the driving voltages of the same column can be made to have the same polarity, thereby causing multiple voltages output by the same data line.
  • the difference between the signals is maintained in a small range, and the data driving chip heating or voltage signal distortion can be avoided, thereby further improving the display quality of each sub-pixel.
  • the display panel is a liquid crystal display panel.
  • the liquid crystal material is likely to cause a chemical reaction and accelerate the aging of the electrode, thereby shortening the life of the display panel. Therefore, in order to protect the liquid crystal material and the electrode, the display is extended.
  • the life of the panel is AC driven for each sub-pixel in the display panel. Specifically, for the same sub-pixel, driving voltages of different polarities are respectively applied during the display time of each adjacent two frames to achieve the effect of AC driving.
  • the driving method further includes: alternately applying driving voltages of opposite polarities to the same sub-pixel in each adjacent two frame display time, or, for each of the sub-pixels, in each frame During the display time, a driving voltage having a polarity opposite to that of the previous frame display time is applied. For example, during the m-th frame display time, a driving voltage as shown in FIG. 3 is applied to some sub-pixels in the display panel, and in the m+1-th frame display time, some sub-pixels are applied as shown in FIG. Drive voltage. It can be seen that the polarity of the driving voltage of the same sub-pixel changes during the display time of each adjacent two frames, and the driving voltage level remains unchanged.
  • the polarity of the driving voltage is determined according to the pixel group to which it belongs and its position in the pixel group, and the driving voltage level is determined according to the pixel unit to which it belongs, and then passed.
  • the preset data processing circuit obtains the driving voltage of each sub-pixel according to the image data of each sub-pixel, the polarity and level of the corresponding driving voltage, and applies the driving voltage to each sub-pixel through the data line.
  • the display panel is respectively displayed on the specific test screens as shown in FIG. 5a, FIG. 5b, FIG. 5c, FIG. 5d, FIG. 5e, FIG. 5f, FIG. 5g and FIG.
  • a sub-pixel filled with a black slash indicates that the data signal corresponding to the sub-pixel is a dark state signal.
  • FIG. 5d indicates that each A picture in which one pixel unit alternately lights up/dark is displayed
  • FIG. 5e shows a picture in which every two pixel units are alternately lit/dark
  • FIG. 5f shows a picture in which every other sub-pixel is alternately lit/dark
  • FIG. 5g shows every other A picture in which a column of sub-pixels are alternately illuminated/dark
  • FIG. 5h shows a picture in which the pixel units are alternately lit/dark in every other column.
  • the embodiment of the present application further provides a driving device 60 for a display panel.
  • the display panel has a plurality of pixel units distributed in a matrix, wherein the plurality of pixel units include a plurality of first pixel units and a plurality of second pixel units, the first pixel unit being disposed adjacent to the second pixel unit, And each of the pixel units includes a plurality of sub-pixels.
  • the driving device 60 includes a grouping module 610 and a driving module 620 .
  • the driving module 620 includes a first driving unit 621 , a second driving unit 622 , and a third driving unit 623 .
  • the grouping module 610 is configured to set a plurality of pixel groups such that each of the pixel groups includes two columns of adjacent pixel units; the first driving unit 621 is configured to: each adjacent two rows in the same row of pixel units The pixels respectively apply driving voltages of opposite polarities; the second driving unit 622 is configured to apply driving voltages of opposite polarities to corresponding ones of the adjacent two of the pixel groups; the third driving unit 623 And driving voltages of different voltage levels are respectively applied to the sub-pixels in the first pixel unit and the sub-pixels in the second pixel unit.
  • the pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel arranged in sequence; the second driving unit is further configured to use two of each of the two adjacent pixel groups Applying a driving voltage of opposite polarity to the first sub-pixel, applying a driving voltage of opposite polarity to each of the two second sub-pixels of each of the two adjacent pixel groups, and for each adjacent two of the pixels Two of the third sub-pixels in the group apply driving voltages of opposite polarities.
  • the number of sub-pixels to which the positive polarity high voltage level (H+) driving voltage is applied is equal to the number of sub-pixels to which the negative polarity high voltage level (H-) driving voltage is applied, so that the V com voltage is protected from
  • the influence of parasitic capacitance ensures the correctness of the image signal and avoids the occurrence of color shift or image quality abnormality.
  • the third driving unit 623 is further configured to apply a driving voltage of a preset first voltage level to the sub-pixels in the first pixel unit; and, to the sub-pixels in the second pixel unit A driving voltage of a preset second voltage level is applied. In this way, it is possible to ensure that the driving voltage levels of each adjacent two pixel units are different, and the driving voltages of the sub-pixels in each adjacent two sub-pixel groups are opposite in polarity.
  • the driving module 620 further includes a fourth driving unit and a fifth driving unit, wherein the fourth driving unit is configured to apply driving voltages of the same polarity to each of the pixel units in the same pixel group; The driving unit is configured to apply a driving voltage of opposite polarity to each adjacent two sub-pixels in the same pixel unit.
  • the fifth driving unit is further configured to apply a driving voltage of the same polarity to the first sub-pixel and the third sub-pixel in the same pixel unit, and to the second sub-pixel in the same pixel unit A driving voltage opposite in polarity to the first sub-pixel is applied.
  • the driving voltages of the same column can be made to have the same polarity, thereby causing multiple voltages output by the same data line.
  • the difference between the signals is maintained in a small range, and the data driving chip heating or voltage signal distortion can be avoided, thereby further improving the display quality of each sub-pixel.
  • the rows and columns of the embodiment of the present application represent two alignment directions perpendicular to each other, for example, the row indicates the vertical direction, and the column indicates the horizontal direction; for example, the row indicates the horizontal direction and the column indicates the vertical direction. That is, the "row” in the embodiment of the present application may be a “column” as understood by those skilled in the art, and the “column” in the embodiment of the present application may also be a “row” as understood by those skilled in the art.
  • the driving device further includes a sixth driving unit for alternately applying driving voltages of opposite polarities to the same sub-pixel in each adjacent two-frame display time.
  • each sub-pixel can be AC-driven to protect the liquid crystal material and the electrodes, thereby prolonging the life of the display panel.
  • a further embodiment of the present invention is a driving device for a display panel, which uses the driving method of the display panel according to any of the above embodiments; for example, a driving device for a display panel, which adopts any of the above embodiments.
  • the driving method of the display panel is implemented.
  • the driving device of the display panel has the functional module corresponding to the driving method of the display panel according to any of the above embodiments.
  • the driving method and the driving device of the display panel proposed in the present application can be applied to, for example, a liquid crystal display panel, an OLED (Organic Light-Emitting Diode) display panel, and a QLED (Quantum Dot Light Emitting Diodes) display.
  • Panel curved display panel or flexible display panel.
  • a liquid crystal display panel can be used as a TN (Twisted Nematic) liquid crystal display panel, an IPS (In-Plane Switching) liquid crystal display panel, and a PLS (Plane to Line Switching).
  • the above display panel can be driven by a logic board of a full HD display panel. That is, the driving method and the driving device of the above display panel can be implemented by using a logic board of a full HD display panel.
  • the present application also discloses a display device.
  • the display device 70 includes a display panel 20 and a driving device 60 of the display panel as shown in any of the above embodiments.
  • the display device is a liquid crystal display device, an OLED display device or a QLED display device, a curved display device, a flexible display device, or the like.
  • the liquid crystal display device can be a TN liquid crystal display, an IPS liquid crystal display, a PLS liquid crystal display, or an MVA liquid crystal display.

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Abstract

本申请涉及一种显示面板的驱动方法、驱动装置及显示装置，其中所述驱动方法包括：设定多个像素组，使每一所述像素组包括两行相邻的像素单元；对同一行像素单元中每相邻的两行子像素分别施加极性相反的驱动电压；对每相邻两个所述像素组中相对应的子像素施加极性相反的驱动电压；使第一像素单元与第二像素单元在所述显示面板中相邻设置；对第一像素单元中的子像素和第二像素单元中的子像素分别施加不同电压等级的驱动电压。

Description

显示面板的驱动方法、驱动装置及显示装置 技术领域
本申请涉及显示技术领域，特别是涉及一种显示面板的驱动方法、驱动装置及显示装置。
背景技术
范例性的垂直配向(Vertical Alignment，VA)液晶显示装置，在显示画面时，由于液晶分子维持一定的偏转角，使得在不同视角下光的透过率不同，造成使用者在不同视角观看画面时会感受到画面的颜色有所差异的色偏现象。
为了改善色偏问题，目前一般的做法是将每个像素单元中RGB子像素的像素电极划分为两个独立的像素电极，对两个像素电极分别施加不同的驱动电压来改善色偏的问题。这种方法，由于像素电极数量的增加，需要重新设计更多的金属走线或TFT(Thin Film Transistor，薄膜晶体管)元件来驱动显示面板，而金属走线和TFT元件不透光，因此这种方法会牺牲可透光开口区、影响面板的透过率、提升背光成本。
为了避免增加金属走线或TFT元件，另一种方法是对每相邻的两个像素单元分别施加高、低两种不同的驱动电压信号，具体的，在同一时刻，每相邻的两个子像素被施加不同极性的驱动电压。采用这种方式，会导致同一列子像素的高电压的正负极性不匹配，即同一列中正极性高电压的子像素数量与负极性高电压的子像素的数量不一致。这样，由于寄生电容的影响，当同一列正极性高电压的子像素数量多于负极性高电压的子像素数量时，公共电压V com的等效电压相较于原V com有所提高，导致正极性高电压的子像素实际充电电荷减少、亮度降低，相反地使得负极性高电压子像素实际充电电荷增加、亮度增加，进而影响显示颜色及画质，产生画质输出异常的问题。
发明内容
基于此，有必要提供一种显示面板的驱动方法、驱动装置及显示装置，能够使得V com电压免受干扰，保证图像信号的正确性，提升画面显示质量。
一种显示面板的驱动方法，所述驱动方法包括：设定多个像素组，使每一所述像素组包括两行相邻的像素单元；对同一行像素单元中每相邻的两行子像素分别施加极性相反的驱动电压，对每相邻两个所述像素组中相对应的子像素施加极性相反的驱动电压；使第一像素单元与第二像素单元在所述显示面板中相邻设置；对第一像素单元中的子像素和第二像素单元中的子像素分别施加不同电压等级的驱动电压；其中，所述驱动方法还包括：对同一像素组中的各所述像素单元施加极性相同的驱动电压，并且对同一像素单元中每相邻的两个子像素施加极性相反的驱动电压；其中，所述驱动方法还包括：在每相邻的两帧显示时间内，对同一所述子像素交替施加极性相反的驱动电压。
在其中一个实施例中，所述像素单元包括依次排列的第一子像素、第二子像素及第三子像素；所述对每相邻两个所述像素组中相对应的子像素施加极性相反的驱动电压，包括：对每相邻两个所述像素组中的所述第一子像素施加极性相反的驱动电压，对每相邻两个所述像素组中的所述第二子像素施加极性相反的驱动电压，并且对每相邻两个所述像素组中的所述第三子像素施加极性相反的驱动电压；
所述对同一像素单元中每相邻的两个子像素施加极性相反的驱动电压，包括：对同一像素单元中的所述第一子像素和所述第三子像素施加极性相同的驱动电压，并且对同一像素单元中的所述第二子像素施加与所述第一子像素极性相反的驱动电压。
在其中一个实施例中，所述对所述第一像素单元中的子像素和所述第二像素单元中的子像素分别施加不同电压等级的驱动电压，包括：对所述第一像素单元中的子像素施加预设第一电压等级的驱动电压；对所述第二像素单元中的子像素施加预设第二电压等级的驱动电压。
一种显示面板的驱动装置，包括：分组模块，用于设定多个像素组，使每一所述像素组包括两行相邻的像素单元；驱动模块，包括第一驱动单元、第二驱动单元及第三驱动单元；所述第一驱动单元，用于对同一行像素单元中每相邻的两行子像素分别施加极性相反的驱动电压；所述第二驱动单元，用于对每相邻两个所述像素组中相对应的子像素施加极性相反的驱动电压；所述第三驱 动单元，用于对所述第一像素单元中的子像素和第二像素单元中的子像素分别施加不同电压等级的驱动电压；其中，所述第一像素单元与所述第二像素单元在所述显示面板中相邻设置。
在其中一个实施例中，所述驱动模块还包括：第四驱动单元，用于对同一像素组中的各所述像素单元施加极性相同的驱动电压；以及第五驱动单元，用于对同一像素单元中每相邻的两个子像素施加极性相反的驱动电压。
在其中一个实施例中，所述像素单元包括依次排列的第一子像素、第二子像素及第三子像素；所述第二驱动单元还用于对每相邻两个所述像素组中的两个所述第一子像素施加极性相反的驱动电压，对每相邻两个所述像素组中的两个所述第二子像素施加极性相反的驱动电压，并且对每相邻两个所述像素组中的两个所述第三子像素施加极性相反的驱动电压；所述第五驱动单元还用于对同一像素单元中的所述第一子像素和所述第三子像素施加极性相同的驱动电压，并且对同一像素单元中的所述第二子像素施加与所述第一子像素极性相反的驱动电压。
在其中一个实施例中，所述第三驱动单元还用于：对所述第一像素单元中的子像素施加预设第一电压等级的驱动电压；对所述第二像素单元中的子像素施加预设第二电压等级的驱动电压。
在其中一个实施例中，所述驱动模块还包括第六驱动单元，用于在每相邻的两帧显示时间内，对同一所述子像素交替施加极性相反的驱动电压。
一种显示装置，其包括显示面板以及如上述任一种所述的显示面板的驱动装置。
上述显示面板的驱动方法、驱动装置及显示装置，能够使得每一列被施加正极性高电压等级驱动电压的子像素的数量和被施加负极性高电压等级驱动电压的子像素的数量相等，使得V com电压免受寄生电容的影响，从而确保图像信号的正确性，避免发生色偏或画质异常的现象。
附图说明
图1为一个实施例的显示面板的驱动方法的流程示意图；
图2为一个实施例的显示面板的多个像素单元的驱动电压示意图；
图3为一个实施例的显示面板的多个像素单元中的各子像素的驱动电压示意图；
图4为另一个实施例的显示面板的多个像素单元中的各子像素的驱动电压示意图；
图5a为一个实施例的显示面板显示一特定画面时多个像素单元的驱动电压示意图；
图5b为一个实施例的显示面板显示另一特定画面时多个像素单元的驱动电压示意图；
图5c为一个实施例的显示面板显示又一特定画面时多个像素单元的驱动电压示意图；
图5d为一个实施例的显示面板显示又一特定画面时多个像素单元的驱动电压示意图；
图5e为一个实施例的显示面板显示又一特定画面时多个像素单元的驱动电压示意图；
图5f为一个实施例的显示面板显示又一特定画面时多个像素单元的驱动电压示意图；
图5g为一个实施例的显示面板显示又一特定画面时多个像素单元的驱动电压示意图；
图5h为一个实施例的显示面板显示又一特定画面时多个像素单元的驱动电压示意图；
图6为一个实施例的显示面板的驱动装置的结构示意图；
图7为一个实施例的显示装置的结构示意图。
具体实施方式
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的较佳实施方式。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反地，提供这些实施方式的目的是 使对本申请的公开内容理解的更加透彻全面。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
例如，一种显示面板的驱动方法，所述驱动方法包括：设定多个像素组，使每一所述像素组包括两行相邻的像素单元；对同一行像素单元中每相邻的两行子像素分别施加极性相反的驱动电压，对每相邻两个所述像素组中相对应的子像素施加极性相反的驱动电压；使第一像素单元与第二像素单元在所述显示面板中相邻设置；对第一像素单元中的子像素和第二像素单元中的子像素分别施加不同电压等级的驱动电压。或者说，对显示面板中的各子像素分别施加驱动电压，使得同一行像素单元中每相邻的两行子像素分别的驱动电压极性相反，并且使得每相邻两个所述像素组中相对应的子像素的驱动电压极性相反，并且使得所述第一像素单元中的子像素和所述第二像素单元中的子像素的驱动电压电压等级不同。
例如，一种显示面板的驱动装置，所述驱动装置包括：分组模块，用于设定多个像素组，使每一所述像素组包括两行相邻的像素单元；驱动模块，包括第一驱动单元、第二驱动单元及第三驱动单元；所述第一驱动单元，用于对同一行像素单元中每相邻的两行子像素分别施加极性相反的驱动电压；所述第二驱动单元，用于对每相邻两个所述像素组中相对应的子像素施加极性相反的驱动电压；所述第三驱动单元，用于对所述第一像素单元中的子像素和所述第二像素单元中的子像素分别施加不同电压等级的驱动电压；其中第一像素单元与第二像素单元在所述显示面板中相邻设置。又如，显示面板具有呈矩阵分布的多个像素单元，所述多个像素单元包括若干第一像素单元及若干第二像素单元，所述第一像素单元与所述第二像素单元相邻设置，并且每一所述像素单元包括多个子像素。
例如，一种显示装置，包括显示面板及上述显示面板的驱动装置。
为了进一步理解上述显示面板的驱动方法、驱动装置及显示装置。下面结 合附图进行说明。
请一并参阅图1至图3，其中图1为本申请一实施例的显示面板的驱动方法的流程示意图，该驱动方法应用于显示面板。如图1所示，该驱动方法10包括以下步骤：
S101，设定多个像素组，使每一所述像素组包括两行相邻的像素单元。
例如，将显示面板中的多个像素单元划分为若干像素组，使每一所述像素组包括两行相邻的像素单元。其中，使第一像素单元与第二像素单元在所述显示面板中相邻设置。
S102，对同一行像素单元中每相邻的两行子像素分别施加极性相反的驱动电压。
S103，对每相邻两个所述像素组中相对应的子像素施加极性相反的驱动电压。
S104，对第一像素单元中的子像素和第二像素单元中的子像素分别施加不同电压等级的驱动电压。
实际应用中，步骤S102、步骤S103及步骤S104可同时进行。例如，在同一帧画面的显示时间内对显示面板中的各子像素分别施加驱动电压，使得同一行像素单元中每相邻的两行子像素的驱动电压极性相反，使得每相邻两个所述像素组中相对应的子像素的驱动电压极性相反，并且使得第一像素单元中的子像素和第二像素单元中的子像素的驱动电压的电压等级不同。
例如，不同的电压等级包括高电压等级和低电压等级，这样，能够使得显示面板的每一列(row)像素中，被施加高电压等级的正极性驱动电压的子像素的数量和被施加高电压等级的负极性驱动电压的子像素的数量相等，使得V com电压免受寄生电容的影响，从而确保图像信号的正确性，避免发生色偏或画质异常的现象。
其中，本申请实施例的“行”和“列”表示相互垂直的两种排列方向，例如，“行”表示纵向，“列”表示横向；又如，“行”表示横向，“列”表示纵向。即，本申请实施例中的“行”，可以是本领域普通技术人员所理解的“列”，本申请实施例中的“列”，也可以是本领域技术普通人员所理解的“行”。
其中，如图2所示，显示面板20具有呈矩阵分布的多个像素单元，所述多个像素单元包括若干第一像素单元P1及若干第二像素单元P2，所述第一像素单元与所述第二像素单元相邻设置，或者说第一像素单元与第二像素单元交替排列。具体的，每一所述像素单元包括多个子像素，例如每个像素单元包括颜色不同的多个子像素，又如每个像素单元分别包括红色子像素R、绿色子像素G及蓝色子像素B这三种子像素。其中(i，j)表示第i列第j行，(i，j+1)表示第i列第j+1行，(i+1，j)表示第i+1列第j行，以此类推。例如，如图2所示，与第一像素单元相邻的像素单元均为第二像素单元，与第二像素单元相邻的像素单元均为第一像素单元。
例如，如图3所示，以4行像素单元为例，将这4行像素单元划分为两个像素组，分别为第n组和第n+1组，使得每个像素组包括两行相邻的像素单元。其中，R1、G1和B1分别表示第一像素单元中的红色子像素、绿色子像素及蓝色子像素。R2、G2和B2分别表示第二像素单元中的红色子像素、绿色子像素及蓝色子像素。H表示第一电压等级，L表示第二电压等级，+表示正极性，-表示负极性。(i，j)表示第i列第j行，(i，j+1)表示第i列第j+1行，(i+1，j)表示第i+1列第j行，以此类推。
根据上述驱动方法，对同一行像素单元中每相邻的两行子像素分别施加极性相反的驱动电压，例如第j行的R子像素、第j行的G子像素和第j行的B子像素都属于第j行像素单元，并且第j行的G子像素分别与第j行的R子像素和第j行的B子像素相邻，则对第j行的G子像素施加负极性的驱动电压，对第j行的R子像素和第j行的B子像素施加正极性的驱动电压；或者，对第j行的G子像素施加正极性的驱动电压，对第j行的R子像素和第j行的B子像素施加负极性的驱动电压，以使得同一行像素单元中每相邻的两行子像素的驱动电压极性相反。
本实施例中，正极性指的是驱动电压的大小大于显示面板预设的公共电压V com，即驱动电压与V com电压的压差大于零；负极性指的是驱动电压的大小小于V com电压，即驱动电压与V com电压的压差小于零。
根据上述驱动方法，对每相邻两个像素组中相对应的子像素施加极性相反 的驱动电压。其中上述相对应指的是排列顺序或者排列位置相对应，例如每个像素单元包括依次排列的第一子像素、第二子像素及第三子像素，则每相邻两个像素组中的两个第一子像素为相对应的子像素，每相邻两个像素组中的两个第二子像素为相对应的子像素，每相邻两个像素组中的两个第三子像素为相对应的子像素。此时，对每相邻两个像素组中的第一子像素施加极性相反的驱动电压，对每相邻两个像素组中的第二子像素施加极性相反的驱动电压，并且对每相邻两个像素组中的第三子像素施加极性相反的驱动电压。又如，第n组和第n+1组为相邻的两个像素组，则对第n组中的R子像素施加正极性的驱动电压，对第n+1组中的R子像素施加负极性的驱动电压；对第n组中的G子像素施加负极性的驱动电压，对第n+1组中的G子像素施加正极性的驱动电压；对第n组中的B子像素施加正极性的驱动电压，对第n+1组中的B子像素施加负极性的驱动电压。或者，对第n组中的R子像素施加负极性的驱动电压，对第n+1组中的R子像素施加正极性的驱动电压；对第n组中的G子像素施加正极性的驱动电压，对第n+1组中的G子像素施加负极性的驱动电压；对第n组中的B子像素施加负极性的驱动电压，对第n+1组中的B子像素施加正极性的驱动电压。这样，使得每相邻两个像素组中相对应的子像素的驱动电压极性相反。
根据上述驱动方法，对所述第一像素单元中的子像素和所述第二像素单元中的子像素分别施加不同电压等级的驱动电压。例如，分别预先设置第一像素单元和第二像素单元各自对应的驱动电压等级，又如，预先设置第一像素单元对应的第一驱动电压等级及第二像素单元对应的第二驱动电压等级。
作为一种实施方式，对所述第一像素单元中的子像素施加预设第一电压等级的驱动电压；对所述第二像素单元中的子像素施加预设第二电压等级的驱动电压。其中，第一驱动电压等级和第二驱动电压等级中，一个为高电压等级，另一个为低电压等级。例如，第一驱动电压等级高于第二驱动电压等级，或者第一驱动电压等级低于第二驱动电压等级。
采用上述驱动方法，能够使得显示面板的每一列(row)像素中，被施加正极性高电压等级(H+)驱动电压的子像素的数量和被施加负极性高电压等级(H-)驱动电压的子像素的数量相等，例如图3中的每一列，代表正极性高电压等级 (H+)的子像素和代表负极性高电压等级(H-)的子像素各有3个。高电压等级正负极性的子像素数量相同能够使得V com电压免受寄生电容的影响，从而确保图像信号的正确性，避免发生色偏或画质异常的现象。
在一个实施例中，上述驱动方法还包括：对同一像素组中的各所述像素单元施加极性相同的驱动电压，并对同一像素单元中每相邻的两个子像素施加极性相反的驱动电压。例如，对同一像素组中的各所述像素单元中相对应的子像素施加极性相同的驱动电压，对同一像素单元中的所述第一子像素和所述第三子像素施加极性相同的驱动电压，并且对同一像素单元中的所述第二子像素施加与所述第一子像素极性相反的驱动电压。又如，如图3所示，对第n组中的各像素单元的R子像素均施加正极性的驱动电压，对第n组中的各像素单元的G子像素均施加负极性的驱动电压，对第n组中的各像素单元的B子像素均施加正极性的驱动电压，使得不仅同一像素组中各像素单元的驱动电压极性相一致，而且在任意一个像素单元中，R子像素和G子像素的驱动电压极性相反，G子像素和B子像素的驱动电压极性相反，即在同一个像素单元中每相邻的两个子像素的驱动电压极性相反。这样，在每一列高电压等级正负两种极性的子像素数量相同的前提下，还能使得同一行(column)子像素的驱动电压极性相同，进而使得同一数据线输出的多个电压信号之差维持在较小的范围内，能够避免数据驱动芯片发热或电压信号失真，从而进一步提升各子像素的显示质量。
在一个实施例中，上述显示面板为液晶显示面板，考虑到直流电场驱动液晶像素容易导致液晶材料发生化学反应并加速电极老化，进而缩短显示面板的寿命，因此为了保护液晶材料及电极，延长显示面板的寿命，对显示面板中的每个子像素进行交流驱动。具体地，对于同一个子像素，在每相邻的两帧显示时间内，分别施加不同极性的驱动电压以达到交流驱动的效果。例如，所述驱动方法还包括：在每相邻的两帧显示时间内，对同一所述子像素交替施加极性相反的驱动电压，或者说，对每一所述子像素，在每一帧显示时间内，施加与上一帧显示时间极性相反的驱动电压。例如，在第m帧显示时间内，对显示面板中的一些子像素施加如图3所示的驱动电压，而在第m+1帧显示时间内，对上述一些子像素施加如图4所示的驱动电压。可见，在每相邻的两帧显示时间 内，同一子像素的驱动电压极性发生变化，并且驱动电压等级保持不变。
作为一种实施方式，在驱动显示面板时，对于每个子像素，根据其所属的像素组及其在像素组中的位置确定驱动电压极性，根据其所属的像素单元确定驱动电压等级，进而通过预设的数据处理电路，根据各子像素的图像数据、对应的驱动电压极性和等级，得到各子像素的驱动电压，通过数据线将该驱动电压施加至各个子像素。
采用上述显示面板的驱动方法，驱动显示面板分别对如图5a、图5b、图5c、图5d、图5e、图5f、图5g及图5h所示这几种特定的测试画面进行显示，图中填充有黑色斜线的子像素表示该子像素对应的数据信号为暗态信号。经过实验，发现图5a和图5b的闪烁(Flicker)画面至图5h的画面显示无色偏问题，图5c的画面能够避免水平方向的串扰，图5d均无色偏问题，其中图5d表示每隔一个像素单元交替亮/暗显示的画面，图5e表示每隔两个像素单元交替亮/暗显示的画面，图5f表示每隔一个子像素交替亮/暗显示的画面，图5g表示每隔一列子像素交替亮/暗显示的画面，图5h表示每隔一列像素单元交替亮/暗显示的画面。由此可见，本申请实施例的显示面板的驱动方法具有良好的色偏改善效果。
本申请实施例还提供了一种显示面板的驱动装置60。显示面板具有呈矩阵分布的多个像素单元，其中，所述多个像素单元包括若干第一像素单元及若干第二像素单元，所述第一像素单元与所述第二像素单元相邻设置，并且每一所述像素单元包括多个子像素。
如图6所示，该驱动装置60包括分组模块610及驱动模块620，其中驱动模块620包括第一驱动单元621、第二驱动单元622及第三驱动单元623。分组模块610用于设定多个像素组，使每一所述像素组包括两列相邻的像素单元；所述第一驱动单元621用于对同一行像素单元中每相邻的两行子像素分别施加极性相反的驱动电压；所述第二驱动单元622用于对每相邻两个所述像素组中相对应的子像素施加极性相反的驱动电压；所述第三驱动单元623用于对所述第一像素单元中的子像素和所述第二像素单元中的子像素分别施加不同电压等级的驱动电压。例如，所述像素单元包括依次排列的第一子像素、第二子像素及第三子像素；所述第二驱动单元还用于对每相邻两个所述像素组中的两个所 述第一子像素施加极性相反的驱动电压，对每相邻两个所述像素组中的两个所述第二子像素施加极性相反的驱动电压，并且对每相邻两个所述像素组中的两个所述第三子像素施加极性相反的驱动电压。这样，每一列中，被施加正极性高电压等级(H+)驱动电压的子像素的数量和被施加负极性高电压等级(H-)驱动电压的子像素的数量相等，使得V com电压免受寄生电容的影响，从而确保图像信号的正确性，避免发生色偏或画质异常的现象。
在其中一个实施例中，第三驱动单元623还用于对所述第一像素单元中的子像素施加预设第一电压等级的驱动电压；以及，对所述第二像素单元中的子像素施加预设第二电压等级的驱动电压。这样，能够保证每相邻的两个像素单元的驱动电压等级高低不同，且每相邻两个子像素组中的子像素的驱动电压极性相反。
在其中一个实施例中，驱动模块620还包括第四驱动单元及第五驱动单元，其中第四驱动单元用于对同一像素组中的各所述像素单元施加极性相同的驱动电压；第五驱动单元用于对同一像素单元中每相邻的两个子像素施加极性相反的驱动电压。例如所述第五驱动单元还用于对同一像素单元中的所述第一子像素和所述第三子像素施加极性相同的驱动电压，并且对同一像素单元中的所述第二子像素施加与所述第一子像素极性相反的驱动电压。这样，在每一列高电压等级正负两种极性的子像素数量相同的前提下，还能使得同一行(column)子像素的驱动电压极性相同，进而使得同一数据线输出的多个电压信号之差维持在较小的范围内，能够避免数据驱动芯片发热或电压信号失真，从而进一步提升各子像素的显示质量。
其中，本申请实施例的行和列表示相互垂直的两种排列方向，例如，行表示纵向，列表示横向；又如，行表示横向，列表示纵向。即，本申请实施例中的“行”，可以是本领域技术人员所理解的“列”，本申请实施例中的“列”，也可以是本领域技术人员所理解的“行”。
在其中一个实施例中，所述驱动装置还包括第六驱动单元，用于在每相邻的两帧显示时间内，对同一所述子像素交替施加极性相反的驱动电压。这样，能够对各子像素进行交流驱动，从而保护液晶材料及电极，延长显示面板的寿 命。
本申请又一实施例是，一种显示面板的驱动装置，其采用上述任一实施例所述的显示面板的驱动方法；例如，一种显示面板的驱动装置，其采用上述任一实施例所述显示面板的驱动方法实现；又如，一种显示面板的驱动装置，其具有上述任一实施例所述显示面板的驱动方法所对应的功能模块。
本申请提出的显示面板的驱动方法和驱动装置，可以例如应用于液晶显示面板、OLED(Organic Light-Emitting Diode，有机发光二极管)显示面板、QLED(Quantum Dot Light Emitting Diodes，量子点发光二极管)显示面板、曲面显示面板或柔性显示面板等。又如，以液晶显示显示面板为例，可以为TN(Twisted Nematic，扭曲向列)液晶显示面板、IPS(In-Plane Switching，平面转换)液晶显示面板、PLS(Plane to Line Switching，平面间切换)液晶显示面板、或MVA(Multi-domain Vertical Alignment，多畴垂直配向)液晶显示面板等。其中，上述显示面板可采用全高清显示面板的逻辑板驱动。即，上述显示面板的驱动方法和驱动装置可采用全高清显示面板的逻辑板实现。
本申请还公开了一种显示装置，如图7所示，该显示装置70包括显示面板20及如上述任一实施例所示的显示面板的驱动装置60。
例如，所述显示装置为液晶显示装置、OLED显示装置或QLED显示装置、曲面显示装置、柔性显示装置等。又如，以液晶显示显示装置为例，可以为TN液晶显示器、IPS液晶显示器、PLS液晶显示器、或MVA液晶显示器等。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (16)

  1. 一种显示面板的驱动方法，包括：
    设定多个像素组，使每一所述像素组包括两行相邻的像素单元；
    对同一行像素单元中每相邻的两行子像素分别施加极性相反的驱动电压；
    对每相邻两个所述像素组中相对应的子像素施加极性相反的驱动电压；
    使第一像素单元与第二像素单元在所述显示面板中相邻设置；
    对第一像素单元中的子像素和第二像素单元中的子像素分别施加不同电压等级的驱动电压；
    其中，所述驱动方法还包括：
    对同一像素组中的各所述像素单元施加极性相同的驱动电压；
    并且，对同一像素单元中每相邻的两个子像素施加极性相反的驱动电压；
    其中，所述驱动方法还包括：在每相邻的两帧显示时间内，对同一所述子像素交替施加极性相反的驱动电压。
  2. 如权利要求1所述的显示面板的驱动方法，其中，所述像素单元包括依次排列的第一子像素、第二子像素及第三子像素；
    所述对每相邻两个所述像素组中相对应的子像素施加极性相反的驱动电压，包括：
    对每相邻两个所述像素组中的所述第一子像素施加极性相反的驱动电压；
    对每相邻两个所述像素组中的所述第二子像素施加极性相反的驱动电压；
    并且，对每相邻两个所述像素组中的所述第三子像素施加极性相反的驱动电压；
    所述对同一像素单元中每相邻的两个子像素施加极性相反的驱动电压，包括：
    对同一像素单元中的所述第一子像素和所述第三子像素施加极性相同的驱动电压；
    并且，对同一像素单元中的所述第二子像素施加与所述第一子像素极 性相反的驱动电压。
  3. 如权利要求1所述的显示面板的驱动方法，其中，所述对所述第一像素单元中的子像素和所述第二像素单元中的子像素分别施加不同电压等级的驱动电压，包括：
    对所述第一像素单元中的子像素施加预设第一电压等级的驱动电压；
    对所述第二像素单元中的子像素施加预设第二电压等级的驱动电压。
  4. 如权利要求2所述的显示面板的驱动方法，其中，所述对所述第一像素单元中的子像素和所述第二像素单元中的子像素分别施加不同电压等级的驱动电压，包括：
    对所述第一像素单元中的子像素施加预设第一电压等级的驱动电压；
    对所述第二像素单元中的子像素施加预设第二电压等级的驱动电压。
  5. 一种显示面板的驱动装置，包括：
    分组模块，用于设定多个像素组，使每一所述像素组包括两行相邻的像素单元；
    驱动模块；其中，所述驱动模块包括：
    第一驱动单元，用于对同一行像素单元中每相邻的两行子像素分别施加极性相反的驱动电压；
    第二驱动单元，用于对每相邻两个所述像素组中相对应的子像素施加极性相反的驱动电压；
    第三驱动单元，用于对第一像素单元的子像素和第二像素单元中的子像素分别施加不同电压等级的驱动电压；
    其中，所述第一像素单元与所述第二像素单元在所述显示面板中相邻设置。
  6. 根据权利要求5所述的驱动装置，其中，所述驱动模块还包括：
    第四驱动单元，用于对同一像素组中的各所述像素单元施加极性相同的驱动电压；以及
    第五驱动单元，用于对同一像素单元中每相邻的两个子像素施加极性相反的驱动电压。
  7. 根据权利要求6所述的驱动装置，其中，所述像素单元包括依次排列的 第一子像素、第二子像素及第三子像素；
    所述第二驱动单元还用于对每相邻两个所述像素组中的两个所述第一子像素施加极性相反的驱动电压，对每相邻两个所述像素组中的两个所述第二子像素施加极性相反的驱动电压，并且对每相邻两个所述像素组中的两个所述第三子像素施加极性相反的驱动电压；
    所述第五驱动单元还用于对同一像素单元中的所述第一子像素和所述第三子像素施加极性相同的驱动电压，并且对同一像素单元中的所述第二子像素施加与所述第一子像素极性相反的驱动电压。
  8. 根据权利要求5所述的驱动装置，其中，所述第三驱动单元还用于：对所述第一像素单元中的子像素施加预设第一电压等级的驱动电压；对所述第二像素单元中的子像素施加预设第二电压等级的驱动电压。
  9. 根据权利要求6所述的驱动装置，其中，所述第三驱动单元还用于：对所述第一像素单元中的子像素施加预设第一电压等级的驱动电压；对所述第二像素单元中的子像素施加预设第二电压等级的驱动电压。
  10. 根据权利要求7所述的驱动装置，其中，所述第三驱动单元还用于：对所述第一像素单元中的子像素施加预设第一电压等级的驱动电压；对所述第二像素单元中的子像素施加预设第二电压等级的驱动电压。
  11. 一种显示装置，包括：
    显示面板；以及
    驱动装置；
    其中，所述驱动装置包括：
    分组模块，用于设定多个像素组，使每一所述像素组包括两行相邻的像素单元；
    驱动模块；其中，所述驱动模块包括：
    第一驱动单元，用于对同一行像素单元中每相邻的两行子像素分别施加极性相反的驱动电压；
    第二驱动单元，用于对每相邻两个所述像素组中相对应的子像素施加极性相反的驱动电压；
    第三驱动单元，用于对第一像素单元的子像素和第二像素单元中的子像素分别施加不同电压等级的驱动电压；
    其中，所述第一像素单元与所述第二像素单元在所述显示面板中相邻设置。
  12. 如权利要求11所述的显示装置，其中，所述驱动模块还包括：
    第四驱动单元，用于对同一像素组中的各所述像素单元施加极性相同的驱动电压；以及
    第五驱动单元，用于对同一像素单元中每相邻的两个子像素施加极性相反的驱动电压。
  13. 如权利要求12所述的显示装置，其中，所述像素单元包括依次排列的第一子像素、第二子像素及第三子像素；
    所述第二驱动单元还用于对每相邻两个所述像素组中的两个所述第一子像素施加极性相反的驱动电压，对每相邻两个所述像素组中的两个所述第二子像素施加极性相反的驱动电压，并且对每相邻两个所述像素组中的两个所述第三子像素施加极性相反的驱动电压；
    所述第五驱动单元还用于对同一像素单元中的所述第一子像素和所述第三子像素施加极性相同的驱动电压，并且对同一像素单元中的所述第二子像素施加与所述第一子像素极性相反的驱动电压。
  14. 如权利要求11所述的显示装置，其中，所述第三驱动单元还用于：对所述第一像素单元中的子像素施加预设第一电压等级的驱动电压；对所述第二像素单元中的子像素施加预设第二电压等级的驱动电压。
  15. 如权利要求12所述的显示装置，其中，所述第三驱动单元还用于：对所述第一像素单元中的子像素施加预设第一电压等级的驱动电压；对所述第二像素单元中的子像素施加预设第二电压等级的驱动电压。
  16. 如权利要求13所述的显示装置，其中，所述第三驱动单元还用于：对所述第一像素单元中的子像素施加预设第一电压等级的驱动电压；对所述第二像素单元中的子像素施加预设第二电压等级的驱动电压。
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