WO2019047690A1 - 显示面板的驱动方法及显示装置 - Google Patents

显示面板的驱动方法及显示装置 Download PDF

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Publication number
WO2019047690A1
WO2019047690A1 PCT/CN2018/100596 CN2018100596W WO2019047690A1 WO 2019047690 A1 WO2019047690 A1 WO 2019047690A1 CN 2018100596 W CN2018100596 W CN 2018100596W WO 2019047690 A1 WO2019047690 A1 WO 2019047690A1
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Prior art keywords
pixel
sub
voltage signal
unit
frame image
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English (en)
French (fr)
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何怀亮
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HKC Co Ltd
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HKC Co Ltd
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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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2044—Display of intermediate tones using dithering
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones 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
    • 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
    • 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • 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
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • 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
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • 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
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
    • G09G2340/0435—Change or adaptation of the frame rate of the video stream

Definitions

  • the present application relates to the field of display technologies, and in particular, to a driving method and a display device for a display panel.
  • the exemplary liquid crystal display technology uses a six-bit driver IC (6bit driver IC) to achieve 8-bit (8-bit) image quality resolution, and uses FRC (Frame rate conversation) technology to cut two adjacent gray scales. More gray scales are displayed, and the target gray scale is displayed by multiple frames, and the number of frames is proportionally displayed to achieve the visual persistence of the human eye to experience the equivalent brightness.
  • 6bit driver IC 6bit driver IC
  • FRC Full rate conversation
  • the six-bit driving IC can only realize the eight-bit resolution display of the 124-level luminance signal and the 128-level luminance signal, and the 56-level luminance signal and the 60-level luminance signal Eight-bit resolution display. Therefore, it is necessary to perform matching display by multiple frames. If the average brightness of the ratio is not equal, the equivalent low brightness value seen by the human eye temporarily will have a bright and dark change, and the naked eye will feel the flickering phenomenon of the unequal brightness, resulting in the display quality of the display panel. good.
  • a driving method of a display panel comprising:
  • each of the pixel groups includes an adjacent first pixel unit and a second pixel unit, each pixel unit including a first sub-pixel, a second sub-pixel, and a third sub-pixel arranged in sequence;
  • the first voltage signal drives the first sub-pixel and the third sub-pixel in the first pixel unit And a second sub-pixel in the second pixel unit, the second voltage signal driving the second sub-pixel in the first pixel unit and the first sub-pixel and the third sub-pixel in the second pixel unit;
  • the first voltage signal drives a second sub-pixel in the first pixel unit and a first sub-pixel and a third sub-pixel in the second pixel unit
  • the second voltage signal drives the first pixel unit a first sub-pixel and a third sub-pixel and a second sub-pixel of the second pixel unit
  • the first voltage signal is not equal to the second voltage signal
  • the average signal of the multi-frame image is the same, and the average signal of the second voltage signal of the different pixel groups is the same in the multi-frame image.
  • the first pixel unit and the second pixel unit are adjacently disposed in the same row.
  • the first pixel unit of one of the adjacent two pixel groups and the second pixel unit of the other pixel group are disposed adjacent to each other.
  • the first pixel unit and the second pixel unit are disposed adjacent to each other in the same column.
  • the first pixel unit of one of the adjacent two pixel groups and the second pixel unit of the other one of the pixel groups are disposed adjacent to each other.
  • the multi-frame image is an eight-frame image.
  • the eight frames of images are sequentially a first frame image, a second frame image, a third frame image, a fourth frame image, a fifth frame image, a sixth frame image, a seventh frame image, and a first frame image. Eight frames of images.
  • the first voltage signal is higher than the second voltage signal.
  • each pixel unit includes sub-pixels of three colors.
  • the sub-pixels of the three colors are a red sub-pixel, a green sub-pixel, and a blue sub-pixel, respectively.
  • the first sub-pixel, the second sub-pixel, and the third sub-pixel are a red sub-pixel, a green sub-pixel, and a blue sub-pixel, respectively.
  • the driving voltages between adjacent sub-pixels are opposite in polarity.
  • the first voltage signal and the second voltage signal respectively have different signal values.
  • the first voltage signal corresponds to a signal value of 124 and 128, and the second voltage signal corresponds to a signal value of 56 and 60.
  • the sub-pixels driven by the first voltage signal and the second voltage signal have different signal values.
  • the first voltage signal and the second voltage signal alternately drive each sub-pixel.
  • a display device comprising:
  • the display panel is divided into a plurality of pixel groups, each of the pixel groups includes an adjacent first pixel unit and a second pixel unit, each pixel unit including a first sub-pixel, a second sub-pixel, and Third sub-pixel;
  • a driving module configured to sequentially display each picture using a multi-frame image, and divide the multi-frame image into two sets of first frame units and second frame units with equal number of frames; and also used to acquire each frame a first voltage signal and a second voltage signal of each pixel group in the image; and adjusting the first voltage signal and the second voltage signal such that an average signal of all first voltage signals of each frame image is the same, each frame image
  • the average signals of all the second voltage signals are the same, the average signals of the first voltage signals of the different pixel groups are the same in the multi-frame image, and the average signals of the second voltage signals of the different pixel groups are the same in the multi-frame image; wherein, in the first frame In the unit, the first voltage signal drives a first sub-pixel and a third sub-pixel in the first pixel unit and a second sub-pixel in the second pixel unit, and the second voltage signal drives the first pixel unit a second sub-pixel and a first sub-pixel and a third sub-pixel in the second pixel unit;
  • a first pixel unit of one of the adjacent two pixel groups and a second pixel unit of another one of the pixel groups are disposed adjacent to each other.
  • the adjacent two pixel groups are two adjacent pixel groups in a row direction or a column direction.
  • a driving method of a display panel comprising:
  • each of the pixel groups includes an adjacent first pixel unit and a second pixel unit, each pixel unit including a first sub-pixel, a second sub-pixel, and a third sub-pixel arranged in sequence;
  • Each picture is sequentially displayed using eight frames of images, and the eight frames of images are divided into two groups of first frame units and second frame units having the same number of frames of the image;
  • the first voltage signal drives the first sub-pixel and the third sub-pixel in the first pixel unit And a second sub-pixel in the second pixel unit, the second voltage signal driving the second sub-pixel in the first pixel unit and the first sub-pixel and the third sub-pixel in the second pixel unit;
  • the first voltage signal drives a second sub-pixel in the first pixel unit and a first sub-pixel and a third sub-pixel in the second pixel unit
  • the second voltage signal drives the first pixel unit a first sub-pixel and a third sub-pixel and a second sub-pixel of the second pixel unit
  • the first voltage signal is higher than the second voltage signal
  • the average signal of the eight-frame image is the same, and the average signal of the second voltage signal of the different pixel groups is the same in the eight-frame image.
  • the driving method and the display device of the display panel use a high- and low-voltage pixel driving method of a multi-frame period to enable the same sub-pixel in the same pixel unit to be driven by high and low voltages in a multi-frame period, thereby improving the same pixel unit.
  • the average signal is the same, and the average signal of the low voltage signal of different pixel groups is the same in the multi-frame image, thereby solving the problem of low-frequency brightness flicker; in summary, the above driving method not only improves the timing of sub-pixels in the same pixel unit.
  • the color shift problem is solved, and the problem of low-frequency brightness flicker is solved, thereby improving the display quality of the display panel.
  • FIG. 1 is a flow chart of a driving method of a display panel according to an embodiment
  • FIG. 2 is a schematic diagram of a pixel group arrangement according to an embodiment
  • FIG. 3 is a schematic diagram of a pixel group arrangement of another embodiment
  • FIG. 4 is a schematic diagram of a sub-pixel arrangement of an embodiment
  • FIG. 5 is a schematic diagram of a voltage signal of a sub-pixel of another embodiment
  • FIG. 6 is a schematic diagram of a voltage signal of a sub-pixel of another embodiment
  • FIG. 7 is a schematic diagram of voltage signals of sub-pixels of another embodiment
  • FIG. 8 is a schematic diagram of a voltage signal of a sub-pixel of another embodiment
  • FIG. 9 is a schematic diagram of a voltage signal of a sub-pixel of another embodiment.
  • FIG. 10 is a schematic diagram of voltage signals of sub-pixels of another embodiment
  • Figure 11 is a schematic view of a display device of an embodiment
  • FIG. 12 is a flow chart showing a driving method of a display panel according to another embodiment.
  • FIG. 1 is a flowchart of a driving method of a display panel according to an embodiment, the driving method includes the following contents:
  • Step S100 dividing a pixel into a plurality of pixel groups, each pixel group including adjacent first pixel units and second pixel units, each pixel unit including a first sub-pixel, a second sub-pixel, and a third Subpixel.
  • each pixel unit includes three color sub-pixels, which are a red sub-pixel, a green sub-pixel, and a blue sub-pixel, respectively, and the driving voltages between adjacent sub-pixels are opposite in polarity.
  • Step S200 sequentially display each picture using a multi-frame image, and divide the multi-frame image into two groups of first frame units and second frame units having the same number of frames of the image.
  • the multi-frame image is an eight-frame image, which is a first frame image, a second frame image, a third frame image, a fourth frame image, a fifth frame image, a sixth frame image, a seventh frame image, and a Eight frames of images.
  • first frame unit and the second frame unit respectively comprise four frames of images, and the four frames of the first frame unit are adjacent to the four frames of the second unit, or the four frames of the first frame unit
  • the arrangement of the four frames in the second frame unit is arbitrary in timing. That is, the display order of the above eight frames of images is arbitrary.
  • Step S300 Acquire a first voltage signal and a second voltage signal of each pixel group in each frame image.
  • the first voltage signal drives a first sub-pixel and a third sub-pixel in the first pixel unit and a second sub-pixel in the second pixel unit
  • the second voltage signal drives the first a second sub-pixel in the pixel unit and a first sub-pixel and a third sub-pixel in the second pixel unit.
  • the first voltage signal drives the second sub-pixel in the first pixel unit and the first sub-pixel and the third sub-pixel in the second pixel unit
  • the second voltage signal drives the first a first sub-pixel and a third sub-pixel in the pixel unit and a second sub-pixel in the second pixel unit; the first voltage signal and the second voltage signal are not equal.
  • the first sub-pixel is a red sub-pixel (R)
  • the second sub-pixel is a green sub-pixel (G)
  • the third sub-pixel is a blue sub-pixel (B).
  • the first sub-pixel, the second sub-pixel, and the third sub-pixel are sequentially arranged. It can be understood that if the red sub-pixel (R) and the green sub-pixel (G) blue sub-pixel (B) in the same pixel unit are in the first frame unit (may be in the first frame image to the eighth frame image) Any four frame image) has a first voltage signal (high voltage signal), and then the sub-pixel corresponding to the second frame unit (four frames of images remaining after removing four frames of images in the first frame unit) has a second voltage Signal (low voltage signal).
  • the driving signals of the red sub-pixel (R), the green sub-pixel (G), and the blue sub-pixel (B) in the same pixel unit in the first frame unit are the second voltage signal (low voltage signal)
  • the driving signal in the two-frame unit is the first voltage signal (high voltage signal). That is, the same sub-pixel is alternately driven with high and low voltage signals in the first frame unit and the second frame unit, respectively.
  • the first voltage signal is higher than the second voltage signal. That is, the first voltage signal is a high voltage signal and the second voltage signal is a low voltage signal.
  • first voltage signal and the second voltage signal respectively have different signal values.
  • the signal value corresponding to the first voltage signal is 124 or 128; the signal value corresponding to the second voltage signal is 56 or 60. Therefore, the sub-pixels driven by the first voltage signal and the second voltage signal also have different signal values.
  • Step S400 adjusting the first voltage signal and the second voltage signal so that the average signals of all the first voltage signals of each frame image are the same, and the average signals of all the second voltage signals of each frame image are the same, and the different pixel groups are the same.
  • a voltage signal has the same average signal in a multi-frame image
  • a second voltage signal of a different pixel group has the same average signal in a multi-frame image.
  • the high and low voltage pixel driving modes of the multi-frame period are used to enable the sub-pixels in the same pixel unit to be driven by high and low voltages in a multi-frame period, and each The average signal of all high voltage signals of the frame image is the same, the average signals of all low voltage signals of each frame image are the same, the average signals of the high voltage signals of different pixel groups are the same in the multi-frame image, and the low voltage signals of different pixel groups are more The average signal of the frame image is the same. Therefore, the above driving method not only solves the problem of low-frequency brightness flicker, but also improves the color shift problem of sub-pixels in the same pixel unit in timing, thereby improving the display quality of the display panel.
  • the first pixel unit 110 and the second pixel unit 120 in step S100 are adjacently arranged in the same row.
  • the first pixel unit 210 of one of the adjacent two pixel groups 200 and the second pixel unit 120 of the other one of the pixel groups 100 are disposed adjacent to each other.
  • first pixel unit 110 and the second pixel unit 120 in the pixel group 100 is not limited to the above embodiment, and may also be an arrangement as shown in FIG. 3. Wherein, the first pixel unit 110' and the second pixel unit 120' are adjacently arranged in the same column.
  • the first pixel unit 210' of one of the adjacent two pixel groups 200' and the second pixel unit 120' of the other one of the pixel groups 100' are disposed adjacent to each other.
  • each pixel unit includes three color sub-pixels, which are a red sub-pixel, a green sub-pixel, and a blue sub-pixel, respectively, and the driving polarities between adjacent sub-pixels are opposite.
  • FRC Full Rate Control
  • a picture is displayed in eight frame periods, and a 6-bit driving IC can realize high voltage signals of 124 and 128, and low voltage signals of 56 and 60.
  • a high voltage signal 125 is required to be spatially and temporally proportioned by the high voltage signals 124 and 128, and spatially by the low voltage signals 56 and 60.
  • the low voltage signal 57 is implemented in proportion to time.
  • the frame rate control is a method of realizing the target gray scale display by means of color mixing by utilizing the visual inertia of the human eye.
  • the way of color mixing can be divided into spatial color mixing and temporal color mixing. In order to obtain a better display effect, the color mixing mode of the two is usually used at the same time.
  • an implementation manner of step S100 includes the following: four pixel groups are one display unit in one frame display image, wherein four pixel groups are vertically arranged, and each pixel group includes a pixel unit and a second pixel unit, and the first pixel unit and the second pixel unit in the adjacent pixel group are alternately arranged (ie, the first pixel unit and the other pixel group of one of the adjacent pixel groups) The second pixel unit is adjacent).
  • Each of the pixel units includes a red sub-pixel (R), a green sub-pixel (G), and a blue sub-pixel (B) arranged in order, and a red sub-pixel (R) and a blue sub-pixel in the first pixel unit ( B) driving with the green sub-pixel (G) in the second pixel unit using the first voltage signal (high voltage signal), the green sub-pixel (G) in the first pixel unit and the red sub-pixel in the second pixel unit ( R), the blue sub-pixel (B) is driven using a second voltage signal (low voltage signal).
  • R red sub-pixel
  • G green sub-pixel
  • B blue sub-pixel
  • the first pixel group 100 includes a first pixel unit 110 and a second pixel unit 120, and the first pixel unit 110 includes red sub-pixels (R1), green sub-pixels (G1), and blue sub-pixels (B1) arranged in order.
  • R1 red sub-pixels
  • G1 green sub-pixels
  • B1 blue sub-pixels
  • the second pixel unit 120 includes red sub-pixels (R2), green sub-pixels (G2), and blue sub-pixels (B2) arranged in sequence; red sub-pixels (R1) and blue sub-pixels in the first pixel unit 110
  • the pixel (B1) and the green sub-pixel (G2) in the second pixel unit 120 are driven using a first voltage signal (high voltage signal), and the green sub-pixel (G1) and the second pixel unit 120 in the first pixel unit 110 are The red sub-pixel (R2) and the blue sub-pixel (B2) are driven using a second voltage signal (low voltage signal).
  • the other three sets of pixel groups are similar to the first pixel set 100 and will not be described here. Therefore, the high voltage signal and the low voltage signal in the figure alternately drive each sub-pixel.
  • the multi-frame image in step S200 is an eight-frame image.
  • an implementation manner of step S300 includes the following content: eight frames are used as one display period.
  • A1-128 indicates that the voltage signal of the sub-pixel A1 is 128;
  • A2-56 indicates that the voltage signal of the sub-pixel A2 is 56.
  • the sub-pixel A1 is the red sub-pixel (R1) or the blue sub-pixel (B1) in the first pixel unit 110 in FIG. 4, and is driven by using a first voltage signal (high voltage signal);
  • the sub-pixel A2 is a second pixel.
  • the red sub-pixel (R2) or the blue sub-pixel (B2) in the cell 120 is driven using a second voltage signal (low voltage signal).
  • the sub-pixel A1 and the sub-pixel A2 satisfy the condition of having the same color.
  • A1, A2, A3, A4, A5, A6, A7, and A8 are the same color sub-pixel (red sub-pixel or blue sub-pixel), and sub-pixels A1 and A2, A3 and A4, A5 And A6, A7 and A8 belong to different pixel groups respectively.
  • the sub-pixels A1, A4, A5 and A8 belong to the first pixel element or the third sub-pixel in the first pixel unit in different pixel groups respectively, and the first voltage signal (high voltage signal) is used in the first four frames.
  • the drive is driven by the second voltage signal (low voltage signal) in the last four frames.
  • the sub-pixels A2, A3, A6, and A7 belong to the first pixel element or the third sub-pixel of the second pixel unit in the different pixel groups, respectively, and are driven by the second voltage signal (low voltage signal) in the first four frames.
  • the last four frames are driven using a first voltage signal (low voltage signal).
  • an implementation manner of step S400 includes the following content: as can be seen from FIG. 5, in the first frame, the first voltage signals of the sub-pixels A1, A4, A5, and A8 are 128, 124, 124, and 124, respectively.
  • the second voltage signals of the sub-pixels A2, A3, A6, and A7 are 56, 56, 60, and 56, respectively.
  • the first voltage signals of the sub-pixels A1, A4, A5, and A8 are 124, 124, 128, and 124, respectively; the second voltage signals of the sub-pixels A2, A3, A6, and A7 are 60, 56, and 56, respectively. And 56.
  • the first voltage signals of the sub-pixels A1, A4, A5, and A8 are 124, 128, 124, and 124, respectively; the second voltage signals of the sub-pixels A2, A3, A6, and A7 are 56, 56, and 56, respectively. And 60.
  • the first voltage signals of the sub-pixels A1, A4, A5, and A8 are 124, 124, 124, and 128, respectively; the second voltage signals of the sub-pixels A2, A3, A6, and A7 are 56, 60, and 56, respectively. And 56.
  • the second voltage signals of the sub-pixels A1, A4, A5, and A8 are 56, 56, 60, and 56, respectively; the first voltage signals of the sub-pixels A2, A3, A6, and A7 are 128, 124, and 124, respectively. And 124.
  • the second voltage signals of the sub-pixels A1, A4, A5, and A8 are 60, 56, 56, and 56, respectively; the first voltage signals of the sub-pixels A2, A3, A6, and A7 are 124, 124, and 128, respectively. And 124.
  • the second voltage signals of the sub-pixels A1, A4, A5, and A8 are 56, 56, 56, and 60, respectively; the first voltage signals of the sub-pixels A2, A3, A6, and A7 are 124, 128, and 124, respectively. And 124.
  • the second voltage signals of the sub-pixels A1, A4, A5, and A8 are 56, 60, 56, and 56, respectively; the first voltage signals of the sub-pixels A2, A3, A6, and A7 are 124, 124, and 124, respectively. And 128.
  • the average signals of the first voltage signals of the sub-pixels A1, A4, A5, and A8 are:
  • the average signals of the first voltage signals of the sub-pixels A1, A4, A5, and A8 are all 125
  • the fifth frame, the sixth frame, the seventh frame, and the eighth frame the average signals of the first voltage signals of the sub-pixels A2, A3, A6, and A7 are all 125. That is, in the eight-frame image display, the average values of all the first voltage signals of each frame are the same.
  • the average signals of the second voltage signals of the sub-pixels A2, A3, A6 and A7 are:
  • the average signals of the second voltage signals of the sub-pixels A2, A3, A6, and A7 are all 57
  • the fifth frame, the sixth frame, the seventh frame, and the eighth frame the average signals of the second voltage signals of the sub-pixels A1, A4, A5, and A8 are all 57. That is, in the eight-frame image display, the average value of all the second voltage signals of each frame is the same.
  • the average signal of the first voltage signal (high voltage signal) of all sub-pixels is 125; the average signal of the second voltage signal (low voltage signal) of all sub-pixels Both are 57. Specifically, as shown in Table 1 below:
  • the average signal of the first voltage signal of the sub-pixel A1 is:
  • the average signals of the first voltage signals of the sub-pixels A4, A5, and A8 are all 125, which is the same as the average signal of the first voltage signal of the sub-pixel A1.
  • the average signals of the second voltage signals of the sub-pixels A1, A4, A5, and A8 are:
  • the average voltage signals of the sub-pixels A1, A4, A5, and A8 are both an average of 125 and 57.
  • the average signals of the second voltage signals of the sub-pixels A2, A3, A6, and A7 are:
  • the average signals of the first voltage signals of the sub-pixels A2, A3, A6, and A7 are:
  • the average voltage signals of the sub-pixels A2, A3, A6, and A7 are both an average of 125 and 57.
  • the average signals displayed for each sub-pixel are averaged between 125 and 57 in time (i.e., within eight frames). Specifically, as shown in Table 2 below:
  • the voltage signal of the G1-56 sub-pixel G1 in the figure is 56; G2-128 indicates that the voltage signal of the sub-pixel G2 is 128. That is, the sub-pixel G1 represents the green sub-pixel (G1) in the first pixel unit 110 in FIG. 4, and is driven using the second voltage signal (low voltage signal); the sub-pixel G2 is the green in the second pixel unit 120 in FIG. The sub-pixel (G2) is driven using a first voltage signal (high voltage signal).
  • the sub-pixels G1, G2, G3, G4, G5, G6, G7, and G8 have the same color and are green sub-pixels; secondly, the sub-pixels G1, G4, G5, and G8 belong to different pixels, respectively.
  • the first pixel unit 110 in the group is driven using a second voltage signal (low voltage signal); the sub-pixels G2, G3, G6, and G7 belong to the second pixel unit 120 in different pixel groups, respectively, using the first voltage signal (high Voltage signal) drive.
  • the first voltage signals of the green sub-pixels (G1, G2, G3, G4, G5, G6, G7, and G8) in FIG. 6 spatially (ie, in each frame) can be accurately obtained.
  • the average signal of the (high voltage signal) is 125; the average signal of the second voltage signal (low voltage signal) is 57.
  • the averaged signals displayed for each of the green sub-pixels (G1, G2, G3, G4, G5, G6, G7, and G8) are averaged between 125 and 57.
  • each of the red sub-pixel (R), the blue sub-pixel (B), and the green sub-pixel (G) in the picture is realized by adjusting the spatial and temporal ratio of the high voltage signal and the low voltage signal.
  • the equivalent high voltage signal (average signal) in space and time is 125 and an equivalent low voltage signal (average signal) 57, thereby ensuring that the low frequency luminance flicker phenomenon is not perceived.
  • a high voltage signal of 126 and a low voltage signal of 58 can be realized; and a high voltage signal can also be realized. It is 127, and the low voltage signal is 59 screen display effect. Please refer to FIG. 7 and FIG. 8 for details.
  • the high voltage signal is 124
  • the low voltage signal is 56
  • the high voltage signal is 128, and the low voltage signal is 60. Please refer to FIG. 9 and FIG. 10 for details.
  • a display device as shown in FIG. 11, includes:
  • the display panel is divided into a plurality of pixel groups 100, each of the pixel groups 100 includes an adjacent first pixel unit 110 and a second pixel unit 120, each pixel unit including adjacent sequentially arranged One sub-pixel R, second sub-pixel G, and third sub-pixel B.
  • the driving module 20 is configured to sequentially display each picture using a multi-frame image, and divide the multi-frame image into two groups of first frame units and second frame units with equal number of frames; and also for acquiring each frame image a first voltage signal and a second voltage signal of each of the pixel groups 100; and adjusting the first voltage signal and the second voltage signal such that an average signal of all first voltage signals of each frame image is the same, each frame image
  • the average signals of all the second voltage signals are the same, the average signals of the first voltage signals of the different pixel groups 100 are the same in the multi-frame image, and the average signals of the second voltage signals of the different pixel groups 100 are the same in the multi-frame image;
  • the voltage signal drives the first sub-pixel R and the third sub-pixel B in the first pixel unit 110 and the second sub-pixel G in the second pixel unit 120, and the second voltage signal drives the first sub-pixel in the second pixel unit 120 a pixel R and a third sub-pixel B and a second sub-pixel G of the first
  • the first pixel unit of one of the adjacent two pixel groups and the second pixel unit of the other pixel group are disposed adjacent to each other.
  • two adjacent pixel groups are two adjacent pixel groups in the row direction or the column direction.
  • the figure is a flow chart of a driving method of a display panel.
  • the steps of the method include the following:
  • Step S100' dividing the pixel into a plurality of pixel groups, each of the pixel groups including adjacent first pixel units and second pixel units, each of the pixel units including the first sub-pixel, the second sub-pixel, and the first Three sub-pixels.
  • Step S200' Each frame is sequentially displayed using eight frames of images, and the eight frames of images are divided into two sets of first frame units and second frame units having the same number of frames.
  • the first frame unit and the second frame unit respectively comprise four frames of images, and four of the first frame units are adjacent to the four frames of the second unit, or four frames of the first frame unit
  • the arrangement of the four frames in the second frame unit is arbitrary in timing. That is, the display order of the above eight frames of images is arbitrary.
  • Step S300' Acquire a first voltage signal and a second voltage signal of each pixel group in each frame image.
  • the first voltage signal drives the first sub-pixel and the third sub-pixel in the first pixel unit and the second sub-pixel in the second pixel unit
  • the second voltage signal drives the first pixel unit a second sub-pixel and a first sub-pixel and a third sub-pixel in the second pixel unit.
  • the first voltage signal drives the second sub-pixel in the first pixel unit and the first sub-pixel and the third sub-pixel in the second pixel unit
  • the second voltage signal drives the first pixel unit a first sub-pixel and a third sub-pixel and a second sub-pixel in the second pixel unit.
  • the first voltage signal is higher than the second voltage signal.
  • Step S400' adjusting the first voltage signal and the second voltage signal so that the average signals of all the first voltage signals of the image of each frame are the same, and the average signals of all the second voltage signals of the image of each frame are the same, and the groups of different pixels are different.
  • the first voltage signal has the same average signal in eight frames
  • the second voltage signal of different pixel groups has the same average signal in eight frames.
  • the first voltage signal is a high voltage signal with respect to the second voltage signal, and thus the second voltage signal is a low voltage signal.
  • the first voltage signal and the second voltage signal respectively have different voltage signal values, and the voltage signal values represent brightness signals displayed by the respective sub-pixels.
  • the above embodiment adjusts the sub-pixel luminance signals in each frame and eight frame periods so that the luminance signals of the respective sub-pixels remain corresponding in each frame (spatial) and in the eight-frame period (in time) Consistent.
  • the display device uses a high- and low-voltage pixel driving method of a multi-frame period to enable the same sub-pixel in the same pixel unit to be driven by high and low voltages in a multi-frame period, and to average signals of all high-voltage signals of each frame image.
  • the average signals of all low voltage signals of each frame image are the same, the high voltage signals of different pixel groups have the same average signal in the multi-frame image, and the low voltage signals of different pixel groups have the same average signal in the multi-frame image. Therefore, the above driving method not only solves the problem of low-frequency brightness flicker, but also improves the color shift problem of sub-pixels in the same pixel unit in timing, thereby improving the display quality of the display panel.

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Abstract

一种显示面板（10）的驱动方法及显示装置，方法包括：将像素划分为多个像素组（100, 200, 100', 200'），每一个像素组（100, 200, 100', 200'）包括相邻的第一像素单元（110, 210, 110', 210'）和第二像素单元（120, 220, 120', 220'），每个像素单元（110, 210, 110', 210', 120, 220, 120', 220'）包括依次排列的第一子像素、第二子像素和第三子像素（S100）；将每一幅画面使用多帧图像依序显示，并将多帧图像分为两组帧数相等的第一帧单元和第二帧单元（S200）；获取每一帧图像中每一像素组（100, 200, 100', 200'）的第一电压信号和第二电压信号（S300）；调整第一电压信号和第二电压信号，使各帧图像的所有第一电压信号的平均信号相同，各帧图像的所有第二电压信号的平均信号相同，不同像素组（100, 200, 100', 200'）的第一电压信号在多帧图像的平均信号相同，不同像素组（100, 200, 100', 200'）的第二电压信号在多帧图像的平均信号相同（S400）。

Description

显示面板的驱动方法及显示装置 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及显示装置。
背景技术
示例性的液晶显示技术使用六比特驱动IC(6bit driver IC)来实现八比特(8bit)画质解析度的呈现，采用FRC(Frame rate conversation，帧速率控制)技术将两个相邻灰阶切割出更多灰阶，将显示目标灰阶通过多个帧实现，由多个帧在数量上进行配比显示，以达到视觉暂留人眼感受等效亮度的呈现。
但是，在显示125级亮度信号和57级亮度信号时，由于六比特驱动IC只能实现124级亮度信号和128级亮度信号的八比特解析度显示，以及56级亮度信号和60级亮度信号的八比特解析度显示。故，需由多个帧进行配比显示。如果配比的平均亮度不等，则人眼暂存看到的等效低亮度值会有亮暗的变化，肉眼会感受到明显的不等亮度的闪烁现象，从而导致显示面板的显示品质不佳。
发明内容
基于此，有必要针对显示面板的显示品质不佳的问题，提供一种显示面板的驱动方法及显示装置。
一种显示面板的驱动方法，包括：
将像素划分为多个像素组，每一个像素组包括相邻的第一像素单元和第二像素单元，每个像素单元包括依次排列的第一子像素、第二子像素和第三子像素；
将每一幅画面使用多帧图像依序显示，并将所述多帧图像分为两组包含图像的帧数相等的第一帧单元和第二帧单元；
获取每一帧图像中每一像素组的第一电压信号和第二电压信号；在第一帧单元中，所述第一电压信号驱动第一像素单元中的第一子像素和第三子像素以 及第二像素单元中的第二子像素，所述第二电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素；在第二帧单元中，所述第一电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素，所述第二电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素；所述第一电压信号与所述第二电压信号不相等
调整所述第一电压信号和第二电压信号，使各帧图像的所有第一电压信号的平均信号相同，各帧图像的所有第二电压信号的平均信号相同，不同像素组的第一电压信号在多帧图像的平均信号相同，不同像素组的第二电压信号在多帧图像的平均信号相同。
在其中一个实施例中，所述第一像素单元和所述第二像素单元在相同行中相邻设置。
在其中一个实施例中，相同行中，相邻的两个像素组中的其中一个像素组中的第一像素单元和另外一个像素组的第二像素单元相邻设置。
在其中一个实施例中，所述第一像素单元和第二像素单元在相同列中相邻设置。
在其中一个实施例中，相同列中，相邻的两个像素组中的其中一个像素组中的第一像素单元和另外一个像素组的第二像素单元相邻设置。
在其中一个实施例中，所述多帧图像为八帧图像。
在其中一个实施例中，所述八帧图像依次为第一帧图像、第二帧图像、第三帧图像、第四帧图像、第五帧图像、第六帧图像、第七帧图像和第八帧图像。
在其中一个实施例中，所述第一电压信号高于所述第二电压信号。
在其中一个实施例中，每个像素单元包括三种颜色的子像素。
在其中一个实施例中，所述三种颜色的子像素分别为红色子像素、绿色子像素和蓝色子像素。
在其中一个实施例中，所述第一子像素、所述第二子像素和所述第三子像素分别为红色子像素、绿色子像素和蓝色子像素。
在其中一个实施例中，相邻子像素之间的驱动电压极性相反。
在其中一个实施例中，所述第一电压信号和所述第二电压信号分别对应有不同的信号值。
在其中一个实施例中，所述第一电压信号对应的信号值为124和128，所述第二电压信号对应的信号值为56和60。
在其中一个实施例中，所述第一电压信号和所述第二电压信号所驱动的子像素具有不同的信号值。
在其中一个实施例中，所述第一电压信号与所述第二电压信号交替驱动每个子像素。
一种显示装置，其中，包括：
显示面板，所述显示面板划分为多个像素组，每一个像素组包括相邻的第一像素单元和第二像素单元，每个像素单元包括依次排列的第一子像素、第二子像素和第三子像素；
驱动模块，用于将每一幅画面使用多帧图像依序显示，并将所述多帧图像分为两组帧数相等的第一帧单元和第二帧单元；还用于获取每一帧图像中每一像素组的第一电压信号和第二电压信号；并调整所述第一电压信号和第二电压信号，使各帧图像的所有第一电压信号的平均信号相同，各帧图像的所有第二电压信号的平均信号相同，不同像素组的第一电压信号在多帧图像的平均信号相同，不同像素组的第二电压信号在多帧图像的平均信号相同；其中，在第一帧单元中，所述第一电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素，所述第二电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素；在第二帧单元中，所述第一电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素，所述第二电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素；所述第一电压信号与所述第二电压信号不相等。
在其中一个实施例中，所述显示面板中，相邻两个像素组中的其中一个像素组的第一像素单元和另外一个像素组的第二像素单元相邻设置。
在其中一个实施例中，所述相邻两个像素组为行方向或列方向上的两个相 邻的像素组。
一种显示面板的驱动方法，包括：
将像素划分为多个像素组，每一个像素组包括相邻的第一像素单元和第二像素单元，每个像素单元包括依次排列的第一子像素、第二子像素和第三子像素；
将每一幅画面使用八帧图像依序显示，并将所述八帧图像分为两组包含图像的帧数相等的第一帧单元和第二帧单元；
获取每一帧图像中每一像素组的第一电压信号和第二电压信号；在第一帧单元中，所述第一电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素，所述第二电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素；在第二帧单元中，所述第一电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素，所述第二电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素；所述第一电压信号高于所述第二电压信号；
调整所述第一电压信号和第二电压信号，使各帧图像的所有第一电压信号的平均信号相同，各帧图像的所有第二电压信号的平均信号相同，不同像素组的第一电压信号在八帧图像的平均信号相同，不同像素组的第二电压信号在八帧图像的平均信号相同。
上述显示面板的驱动方法及显示装置利用多帧周期的高、低电压像素驱动方式，使同一像素单元中的同一子像素在多帧周期中采用高、低电压驱动，从而改善同一像素单元中的子像素在时序上的色偏问题；并使各帧图像的所有高电压信号的平均信号相同，各帧图像的所有低电压信号的平均信号相同，不同像素组的高电压信号在多帧图像的平均信号相同，不同像素组的低电压信号在多帧图像的平均信号相同，从而解决低频亮度闪烁的问题；综上所述，上述驱动方法不仅改善了同一像素单元中的子像素在时序上的色偏问题，而且解决了低频亮度闪烁的问题，从而提高了显示面板的显示品质。
附图说明
图1为一实施例的显示面板的驱动方法流程图；
图2为一实施例的像素组排列示意图；
图3为另一实施例的像素组排列示意图；
图4为一实施例的子像素排列示意图；
图5为另一实施例的子像素的电压信号示意图；
图6为另一实施例的子像素的电压信号示意图；
图7为另一实施例的子像素的电压信号示意图；
图8为另一实施例的子像素的电压信号示意图；
图9为另一实施例的子像素的电压信号示意图；
图10为另一实施例的子像素的电压信号示意图；
图11为一实施例的显示装置示意图；
图12为另一实施例的显示面板的驱动方法流程图。
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例。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例。相反地，提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。
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发明的技术领域的技术人员通常理解的含义相同。本文中在发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在限制本申请。本文所使用的术语“和/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。
图1为一实施例的显示面板的驱动方法流程图，该驱动方法包括以下内容：
步骤S100：将像素划分为多个像素组，每一个像素组包括相邻的第一像素单元和第二像素单元，每个像素单元包括依次排列的第一子像素、第二子像素和第三子像素。
具体地，每一像素单元包括3种颜色的子像素，分别为红色子像素、绿色子像素和蓝色子像素，并且相邻子像素之间的驱动电压极性相反。
步骤S200：将每一幅画面使用多帧图像依序显示，并将所述多帧图像分为两组包含图像的帧数相等的第一帧单元和第二帧单元。
具体地，多帧图像为八帧图像，其依次为第一帧图像、第二帧图像、第三帧图像、第四帧图像、第五帧图像、第六帧图像、第七帧图像和第八帧图像。
进一步地，第一帧单元和第二帧单元分别包括四帧图像，且第一帧单元中的四帧图像与第二单元中的四帧图像相邻，或者第一帧单元中的四帧图像与第二帧单元中的四帧图像在时序上的排列任意。即，上述八帧图像的显示顺序任意。
步骤S300：获取每一帧图像中每一像素组的第一电压信号和第二电压信号。在第一帧单元中，所述第一电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素，所述第二电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素。在第二帧单元中，所述第一电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素，所述第二电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素；第一电压信号与第二电压信号不相等。
具体地，第一子像素为红色子像素(R)，第二子像素为绿色子像素(G)，第三子像素为蓝色子像素(B)。并且，第一子像素、第二子像素和第三子像素依序排列。可以理解的，若同一像素单元中的红色子像素(R)、绿色子像素(G)蓝色子像素(B)在第一帧单元中(可以为第一帧图像至第八帧图像中的任意四帧图像)具有第一电压信号(高电压信号)，那么在第二帧单元中(除去第一帧单元中的四帧图像后所剩余的四帧图像)对应的子像素具有第二电压信号(低电压信号)。若同一像素单元中的红色子像素(R)、绿色子像素(G)和蓝色子像素(B)在第一帧单元中的驱动信号为第二电压信号(低电压信号)，那么在第二帧单元中的驱动信号为第一电压信号(高电压信号)。即，同一子像素在第一帧单元和第二帧单元中分别用高、低电压信号交替驱动。
具体地，第一电压信号高于所述第二电压信号。即，第一电压信号为高电压信号，第二电压信号为低电压信号。
进一步地，第一电压信号和第二电压信号分别对应有不同的信号值。例如，第一电压信号对应的信号值为124或128；第二电压信号对应的信号值为56或60。因此，第一电压信号和第二电压信号所驱动的子像素也具有不同的信号值。
步骤S400：调整所述第一电压信号和第二电压信号，使各帧图像的所有第一电压信号的平均信号相同，各帧图像的所有第二电压信号的平均信号相同，不同像素组的第一电压信号在多帧图像的平均信号相同，不同像素组的第二电压信号在多帧图像的平均信号相同。
上述实施例提供的一种显示面板的驱动方法中，利用多帧周期的高、低电压像素驱动方式，使同一像素单元中的子像素在多帧周期中采用高、低电压驱动，并使各帧图像的所有高电压信号的平均信号相同，各帧图像的所有低电压信号的平均信号相同，不同像素组的高电压信号在多帧图像的平均信号相同，不同像素组的低电压信号在多帧图像的平均信号相同。因此，上述驱动方法不仅解决了低频亮度闪烁的问题，而且改善了同一像素单元中的子像素在时序上的色偏问题，从而提高了显示面板的显示品质。
在其中一个实施例中，如图2所示，步骤S100中的第一像素单元110和第二像素单元120在相同行中相邻设置。
具体地，在相同行中，相邻的两个像素组中的其中一个像素组200中的第一像素单元210和另外一个像素组100的第二像素单元120相邻设置。
可以理解的，像素组100中第一像素单元110和第二像素单元120的排列方式不仅限于上述实施例，还可以为如图3所示的排列方式。其中，第一像素单元110'和第二像素单元120'在相同列中相邻设置。
具体地，在相同列中，相邻的两个像素组中的其中一个像素组200'中的第一像素单元210'和另外一个像素组100'的第二像素单元120'相邻设置。
在上述实施例中，每一像素单元包括3种颜色的子像素，分别为红色子像素、绿色子像素和蓝色子像素，并且相邻子像素之间的驱动极性相反。
接下来以6比特驱动IC来实现8比特解析度为例对上述实施例提供的显示 面板的驱动方法进行说明。
由于6比特的驱动IC智能显示64级灰阶，但8比特的显示效果需要256级灰阶。因此可采用FRC(Frame Rate Control，帧速率控制)显示技术，将每一幅画面使用多帧图像依序显示，利用人眼的视觉惰性，适当的控制帧的速率以及相邻帧之间的灰阶信号，可以使6比特的面板上呈现8比特的显示效果。
例如，通过帧速率控制，以八帧为周期显示一幅画面，6比特驱动IC可以实现124和128的高电压信号，以及56和60的低电压信号。而为了实现高电压信号125和低电压信号57的组合，需要由高电压信号124和128在空间上和时间上的配比来实现高电压信号125，以及由低电压信号56和60在空间上和时间上的配比来实现低电压信号57。
其中，帧速率控制是一种利用人眼的视觉惰性，通过混色的方式实现目标灰阶显示的方法。其中，混色的方式可分为空间上的混色和时间上的混色，为获得更好的显示效果，通常同时使用二者的混色方式。
具体地，如图4所示，步骤S100的一种实现方式包括以下内容：在一帧显示图像中以四个像素组为一个显示单元，其中四个像素组纵向排列，每个像素组包括第一像素单元和第二像素单元，并且相邻像素组中的第一像素单元与第二像素单元交替排列(即相邻像素组中的其中一个像素组的第一像素单元与另一个像素组中的第二像素单元相邻)。每个像素单元包括依序排列的红色子像素(R)、绿色子像素(G)和蓝色子像素(B)，且第一像素单元中的红色子像素(R)、蓝色子像素(B)与第二像素单元中的绿色子像素(G)使用第一电压信号(高电压信号)驱动，第一像素单元中的绿色子像素(G)与第二像素单元中的红色子像素(R)、蓝色子像素(B)使用第二电压信号(低电压信号)驱动。例如第一像素组100包括第一像素单元110和第二像素单元120，第一像素单元110包括依序排列的红色子像素(R1)、绿色子像素(G1)和蓝色子像素(B1)，第二像素单元120包括依序排列的红色子像素(R2)、绿色子像素(G2)和蓝色子像素(B2)；第一像素单元110中的红色子像素(R1)、蓝色子像素(B1)与第二像素单元120中的绿色子像素(G2)使用第一电压信号(高电压信号)驱动，第一像素单元110中的绿色子像素(G1)与第二像素单元120中的红色子 像素(R2)、蓝色子像素(B2)使用第二电压信号(低电压信号)驱动。其它三组像素组与第一像素组100类似，这里就不赘述。因此，图中的高电压信号与低电压信号交替驱动每个子像素。
具体地，步骤S200中的多帧图像为八帧图像。
具体地，如图5所示，步骤S300的一种实现方式包括以下内容：以八帧为一个显示周期。图中A1-128表示子像素A1的电压信号为128；A2-56表示子像素A2的电压信号为56。即，子像素A1为图4中第一像素单元110中的红色子像素(R1)或者蓝色子像素(B1)，使用第一电压信号(高电压信号)驱动；子像素A2为第二像素单元120中的红色子像素(R2)或者蓝色子像素(B2)，使用第二电压信号(低电压信号)驱动。可以理解的，子像素A1与子像素A2满足具有相同颜色的条件。根据上述的命名规则可知，A1、A2、A3、A4、A5、A6、A7和A8为相同颜色子像素(红色子像素或者蓝色子像素)，并且子像素A1和A2、A3和A4、A5和A6、A7和A8分别属于不同像素组。可以理解的，子像素A1、A4、A5及A8分别属于不同像素组中的第一像素单元中的第一像子素或第三子像素，在前四帧使用第一电压信号(高电压信号)驱动，在后四帧用第二电压信号(低电压信号)驱动。子像素A2、A3、A6及A7分别属于不同像素组中的第二像素单元中的第一像子素或第三子像素，在前四帧使用第二电压信号(低电压信号)驱动，在后四帧使用第一电压信号(低电压信号)驱动。
具体地，步骤S400的一种实现方式包括以下内容：从图5中可以看出，第一帧中，子像素A1、A4、A5及A8的第一电压信号分别为128、124、124及124；子像素A2、A3、A6及A7的第二电压信号分别为56、56、60及56。第二帧中，子像素A1、A4、A5及A8的第一电压信号分别为124、124、128及124；子像素A2、A3、A6及A7的第二电压信号分别为60、56、56及56。第三帧中，子像素A1、A4、A5及A8的第一电压信号分别为124、128、124及124；子像素A2、A3、A6及A7的第二电压信号分别为56、56、56及60。第四帧中，子像素A1、A4、A5及A8的第一电压信号分别为124、124、124及128；子像素A2、A3、A6及A7的第二电压信号分别为56、60、56及56。第五帧中，子像素A1、A4、A5及A8的第二电压信号分别为56、56、60及56； 子像素A2、A3、A6及A7的第一电压信号分别为128、124、124及124。第六帧中，子像素A1、A4、A5及A8的第二电压信号分别为60、56、56及56；子像素A2、A3、A6及A7的第一电压信号分别为124、124、128及124。第七帧中，子像素A1、A4、A5及A8的第二电压信号分别为56、56、56及60；子像素A2、A3、A6及A7的第一电压信号分别为124、128、124及124。第八帧中，子像素A1、A4、A5及A8的第二电压信号分别为56、60、56及56；子像素A2、A3、A6及A7的第一电压信号分别为124、124、124及128。
一方面，在第一帧中，子像素A1、A4、A5及A8的第一电压信号的平均信号为：
Figure PCTCN2018100596-appb-000001
进一步可以得到第二帧、第三帧和第四帧中，子像素A1、A4、A5及A8的第一电压信号的平均信号都为125，以及第五帧、第六帧、第七帧和第八帧中，子像素A2、A3、A6及A7的第一电压信号的平均信号都为125。即在这八帧图像显示中，每一帧的所有第一电压信号的平均值都相同。
另一方面，在第一帧中，子像素A2、A3、A6及A7的第二电压信号的平均信号为：
Figure PCTCN2018100596-appb-000002
进一步可以得到第二帧、第三帧和第四帧中，子像素A2、A3、A6及A7的第二电压信号的平均信号都为57，以及第五帧、第六帧、第七帧和第八帧中，子像素A1、A4、A5及A8的第二电压信号的平均信号都为57。即在这八帧图像显示中，每一帧的所有第二电压信号的平均值都相同。
因此，在空间上(即在每一帧中)，所有子像素的第一电压信号(高电压信号)的平均信号都为125；所有子像素的第二电压信号(低电压信号)的平均信号都为57。具体地，如下表1所示：
表1
Figure PCTCN2018100596-appb-000003
Figure PCTCN2018100596-appb-000004
进一步地，一方面，如图5所示，在前四帧中，子像素A1的第一电压信号的平均信号为：
Figure PCTCN2018100596-appb-000005
进一步可得到子像素A4、A5及A8的第一电压信号的平均信号都为125，与子像素A1的第一电压信号的平均信号相同。
进一步地，在后四帧中，子像素A1、A4、A5及A8的第二电压信号的平均信号都为：
Figure PCTCN2018100596-appb-000006
因此，在八帧图像显示中，子像素A1、A4、A5及A8的平均电压信号都为125与57的平均。
另一方面，在前四帧中，子像素A2、A3、A6及A7的第二电压信号的平均信号都为：
Figure PCTCN2018100596-appb-000007
在后四帧中，子像素A2、A3、A6及A7的第一电压信号的平均信号都为：
Figure PCTCN2018100596-appb-000008
因此，在八帧图像显示中，子像素A2、A3、A6及A7的平均电压信号都为125与57的平均。
综上可知，在时间上(即在八帧内)，各子像素(A1、A2、A3、A4、A5、A6、A7及A8)的所显示的平均信号都为125与57的平均。具体地，如下表2所示：
表2
Figure PCTCN2018100596-appb-000009
Figure PCTCN2018100596-appb-000010
进一步地，如图6所示，图中G1-56子像素G1的电压信号为56；G2-128表示子像素G2的电压信号为128。即，子像素G1表示图4中第一像素单元110中的绿色子像素(G1)，使用第二电压信号(低电压信号)驱动；子像素G2为图4中第二像素单元120中的绿色子像素(G2)，使用第一电压信号(高电压信号)驱动。根据上述的命名规则可知，子像素G1、G2、G3、G4、G5、G6、G7及G8具有相同的颜色，并且为绿色子像素；其次，子像素G1、G4、G5及G8分别属于不同像素组中的第一像素单元110，使用第二电压信号(低电压信号)驱动；子像素G2、G3、G6及G7分别属于不同像素组中的第二像素单元120，使用第一电压信号(高电压信号)驱动。
根据图5的描述，可以准确得出图6中的绿色子像素(G1、G2、G3、G4、G5、G6、G7及G8)在空间上(即在每一帧中)的第一电压信号(高电压信号)的平均信号都为125；第二电压信号(低电压信号)的平均信号都为57。在时间上(即在八帧内)，各绿色子像素(G1、G2、G3、G4、G5、G6、G7及G8)的所显示的平均信号都为125与57的平均。
上述实施例中，通过调整高电压信号和低电压信号在空间上和时间上的配比，实现了画面中的各红色子像素(R)、蓝色子像素(B)及绿色子像素(G)在空间上和时间上的等效高电压信号(平均信号)为125和等效低电压信号(平均信号)57，从而确保了低频亮度闪烁现象不会被察觉。
可以理解的，根据调整第一电压信号和第二电压信号在空间上和时间上的 配比，还可以实现高电压信号为126，低电压信号为58的画面显示效果；还可以实现高电压信号为127，低电压信号为59的画面显示效果，具体请参照图7和图8。
进一步地，当第一电压信号和第二电压信号在空间上和时间上都保持不变时(即在每一帧图像及各帧图像中，第一电压信号和第二电压信号均保持不变)，可实现高电压信号为124，低电压信号为56；高电压信号为128，低电压信号为60等组合的显示效果。具体请参照图9和图10。
在其中一实施例中提供一种显示装置，如图11所示，包括：
显示面板10，所述显示面板划分为多个像素组100，每一个像素组100包括相邻的第一像素单元110和第二像素单元120，每个像素单元包括相邻的依序排列的第一子像素R、第二子像素G和第三子像素B。
驱动模块20，用于将每一幅画面使用多帧图像依序显示，并将多帧图像分为两组帧数相等的第一帧单元和第二帧单元；还用于获取每一帧图像中每一像素组100的第一电压信号和第二电压信号；并调整所述第一电压信号和第二电压信号，使各帧图像的所有第一电压信号的平均信号相同，各帧图像的所有第二电压信号的平均信号相同，不同像素组100的第一电压信号在多帧图像的平均信号相同，不同像素组100的第二电压信号在多帧图像的平均信号相同；其中，第一电压信号驱动第一像素单元110中的第一子像素R和第三子像素B以及第二像素单元120中的第二子像素G，第二电压信号驱动第二像素单元120中的第一子像素R和第三子像素B以及第一像素单元110中的第二子像素G；第一电压信号与所述第二电压信号不相等。
在其中一个实施例中，在上述显示面板10中，相邻两个像素组中的其中一个像素组的第一像素单元和另外一个像素组的第二像素单元相邻设置。
在本实施例中，相邻两个像素组为行方向或列方向上的两个相邻的像素组。
在其中一个实施例中，如图12所示，该图为一种显示面板的驱动方法流程图。当一幅画面的显示周期为八帧周期，且上述第一电压信号高于第二电压信号时，该方法的步骤包括以下内容：
步骤S100'：将像素划分为多个像素组，每一个像素组包括相邻的第一像素 单元和第二像素单元，每个像素单元包括依次排列的第一子像素、第二子像素和第三子像素。
步骤S200'：将每一幅画面使用八帧图像依序显示，并将所述八帧图像分为两组帧数相等的第一帧单元和第二帧单元。
具体地，第一帧单元和第二帧单元分别包括四帧图像，且第一帧单元中的四帧图像与第二单元中的四帧图像相邻，或者第一帧单元中的四帧图像与第二帧单元中的四帧图像在时序上的排列任意。即，上述八帧图像的显示顺序任意。
步骤S300'：获取每一帧图像中每一像素组的第一电压信号和第二电压信号。在第一帧单元中，第一电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素，第二电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素。在第二帧单元中，第一电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素，第二电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素。第一电压信号高于所述第二电压信号。
步骤S400'：调整所述第一电压信号和第二电压信号，使各帧图像的所有第一电压信号的平均信号相同，各帧图像的所有第二电压信号的平均信号相同，不同像素组的第一电压信号在八帧图像的平均信号相同，不同像素组的第二电压信号在八帧图像的平均信号相同。
在本实施例中，第一电压信号相对第二电压信号为高电压信号，因此第二电压信号为低电压信号。此外，第一电压信号和第二电压信号分别具有不同的电压信号值，这些电压信号值代表了各子像素显示的亮度信号。上述实施例通过调整每一帧和八帧周期中的子像素亮度信号，使得各子像素的亮度信号在每一帧中(空间上)以及八帧周期中(时间上)的平均亮度信号保持相应的一致。
上述显示装置利用多帧周期的高、低电压像素驱动方式，使同一像素单元中的同一子像素在多帧周期中采用高、低电压驱动，并使各帧图像的所有高电压信号的平均信号相同，各帧图像的所有低电压信号的平均信号相同，不同像素组的高电压信号在多帧图像的平均信号相同，不同像素组的低电压信号在多帧图像的平均信号相同。因此，上述驱动方法不仅解决了低频亮度闪烁的问题， 而且改善了同一像素单元中的子像素在时序上的色偏问题，从而提高了显示面板的显示品质。
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 (20)

  1. 一种显示面板的驱动方法，包括：
    将像素划分为多个像素组，每一个像素组包括相邻的第一像素单元和第二像素单元，每个像素单元包括依次排列的第一子像素、第二子像素和第三子像素；
    将每一幅画面使用多帧图像依序显示，并将所述多帧图像分为两组包含图像的帧数相等的第一帧单元和第二帧单元；
    获取每一帧图像中每一像素组的第一电压信号和第二电压信号；在第一帧单元中，所述第一电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素，所述第二电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素；在第二帧单元中，所述第一电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素，所述第二电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素；所述第一电压信号与所述第二电压信号不相等；
    调整所述第一电压信号和第二电压信号，使各帧图像的所有第一电压信号的平均信号相同，各帧图像的所有第二电压信号的平均信号相同，不同像素组的第一电压信号在多帧图像的平均信号相同，不同像素组的第二电压信号在多帧图像的平均信号相同。
  2. 根据权利要求1所述的显示面板的驱动方法，其中，所述第一像素单元和所述第二像素单元在相同行中相邻设置。
  3. 根据权利要求2所述的显示面板的驱动方法，其中，相同行中，相邻的两个像素组中的其中一个像素组中的第一像素单元和另外一个像素组的第二像素单元相邻设置。
  4. 根据权利要求1所述的显示面板的驱动方法，其中，所述第一像素单元和第二像素单元在相同列中相邻设置。
  5. 根据权利要求4所述的显示面板的驱动方法，其中，相同列中，相邻的两个像素组中的其中一个像素组中的第一像素单元和另外一个像素组的第二像素单元相邻设置。
  6. 根据权利要求1所述的显示面板的驱动方法，其中，所述多帧图像为八帧图像。
  7. 根据权利要求6所述的显示面板的驱动方法，其中，所述八帧图像依次为第一帧图像、第二帧图像、第三帧图像、第四帧图像、第五帧图像、第六帧图像、第七帧图像和第八帧图像。
  8. 根据权利要求1所述的显示面板的驱动方法，其中，所述第一电压信号高于所述第二电压信号。
  9. 根据权利要求1所述的显示面板的驱动方法，其中，每个像素单元包括三种颜色的子像素。
  10. 根据权利要求1所述的显示面板的驱动方法，其中，所述三种颜色的子像素分别为红色子像素、绿色子像素和蓝色子像素。
  11. 根据权利要求1所述的显示面板的驱动方法，其中，所述第一子像素、所述第二子像素和所述第三子像素分别为红色子像素、绿色子像素和蓝色子像素。
  12. 根据权利要求1所述的显示面板的驱动方法，其中，相邻子像素之间的驱动电压极性相反。
  13. 根据权利要求1所述的显示面板的驱动方法，其中，所述第一电压信号和所述第二电压信号分别对应有不同的信号值。
  14. 根据权利要求13所述的显示面板的驱动方法，其中，所述第一电压信号对应的信号值为124和128，所述第二电压信号对应的信号值为56和60。
  15. 根据权利要求14所述的显示面板的驱动方法，其中，所述第一电压信号和所述第二电压信号所驱动的子像素具有不同的信号值。
  16. 根据权利要求8所述的显示面板的驱动方法，其中，所述第一电压信号与所述第二电压信号交替驱动每个子像素。
  17. 一种显示装置，其中，包括：
    显示面板，所述显示面板划分为多个像素组，每一个像素组包括相邻的第一像素单元和第二像素单元，每个像素单元包括依次排列的第一子像素、第二子像素和第三子像素；
    驱动模块，用于将每一幅画面使用多帧图像依序显示，并将所述多帧图像分为两组包含图像的帧数相等的第一帧单元和第二帧单元；还用于获取每一帧图像中每一像素组的第一电压信号和第二电压信号；并调整所述第一电压信号和第二电压信号，使各帧图像的所有第一电压信号的平均信号相同，各帧图像的所有第二电压信号的平均信号相同，不同像素组的第一电压信号在多帧图像的平均信号相同，不同像素组的第二电压信号在多帧图像的平均信号相同；其中，在第一帧单元中，所述第一电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素，所述第二电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素；在第二帧单元中，所述第一电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素，所述第二电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素；所述第一电压信号与所述第二电压信号不相等。
  18. 根据权利要求17所述的显示装置，其中，所述显示面板中，相邻两个像素组中的其中一个像素组的第一像素单元和另外一个像素组的第二像素单元相邻设置。
  19. 根据权利要求18所述的显示装置，其中，所述相邻两个像素组为行方向或列方向上的两个相邻的像素组。
  20. 一种显示面板的驱动方法，包括：
    将像素划分为多个像素组，每一个像素组包括相邻的第一像素单元和第二像素单元，每个像素单元包括依次排列的第一子像素、第二子像素和第三子像素；
    将每一幅画面使用八帧图像依序显示，并将所述八帧图像分为两组包含图像的帧数相等的第一帧单元和第二帧单元；
    获取每一帧图像中每一像素组的第一电压信号和第二电压信号；在第一帧单元中，所述第一电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素，所述第二电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素；在第二帧单元中， 所述第一电压信号驱动第一像素单元中的第二子像素以及第二像素单元中的第一子像素和第三子像素，所述第二电压信号驱动第一像素单元中的第一子像素和第三子像素以及第二像素单元中的第二子像素；所述第一电压信号高于所述第二电压信号；
    调整所述第一电压信号和第二电压信号，使各帧图像的所有第一电压信号的平均信号相同，各帧图像的所有第二电压信号的平均信号相同，不同像素组的第一电压信号在八帧图像的平均信号相同，不同像素组的第二电压信号在八帧图像的平均信号相同。
PCT/CN2018/100596 2017-09-11 2018-08-15 显示面板的驱动方法及显示装置 Ceased WO2019047690A1 (zh)

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