WO2018120413A1 - 显示装置的驱动方法及显示装置 - Google Patents

显示装置的驱动方法及显示装置 Download PDF

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Publication number
WO2018120413A1
WO2018120413A1 PCT/CN2017/075637 CN2017075637W WO2018120413A1 WO 2018120413 A1 WO2018120413 A1 WO 2018120413A1 CN 2017075637 W CN2017075637 W CN 2017075637W WO 2018120413 A1 WO2018120413 A1 WO 2018120413A1
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Prior art keywords
driving
pixel unit
voltage
frame
difference
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PCT/CN2017/075637
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English (en)
French (fr)
Inventor
陈猷仁
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惠科股份有限公司
重庆惠科金渝光电科技有限公司
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Priority to US15/556,422 priority Critical patent/US10783846B2/en
Publication of WO2018120413A1 publication Critical patent/WO2018120413A1/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
    • 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
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • 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
    • G09G3/3406—Control of illumination source
    • 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
    • G09G3/3685—Details of drivers for data electrodes
    • G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • 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
    • G09G2320/028—Improving the quality of display appearance by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction

Definitions

  • the present disclosure relates to a liquid crystal display technology, for example, to a driving method of a display device and a display device.
  • VA liquid crystal technology has higher production efficiency and lower manufacturing cost than IPS liquid crystal technology.
  • the advantage is that the VA type liquid crystal display device has a visual role deviation at a large viewing angle, which affects the display effect.
  • a plurality of pixel units in the display panel are generally divided into a main pixel and a sub-pixel, and different driving voltages are applied to the main pixel and the sub-pixel, respectively.
  • the present disclosure provides a driving method and a display device for a display device, which can improve the visual bias of the display device and improve image display quality.
  • a driving method of a display device may include: dividing a frame of a pre-display image into an m-frame display image, wherein a pixel unit corresponding to each pixel of the pre-display image sets a preset grayscale voltage and a preset brightness; In any one frame display screen of the m frame display screen, a difference between a driving voltage of at least one pixel unit in each n pixel units on the display panel and a corresponding preset gray scale voltage and a driving voltage of the other pixel unit The positive and negative signs of the difference between the corresponding preset gray scale voltages are different; at least one of the m driving voltages of the m pixel display screen and the preset gray scale voltage of the pixel unit of any one of the pixel units And a difference between the difference and the other driving voltage and the preset gray scale voltage of the pixel unit are different, and the brightness of the pixel unit in the m frame display screen is equal to the preset brightness; the m frame The product of the backlight brightness of each frame display screen
  • a display device may include: a display panel, a backlight unit, and a driving circuit.
  • the display panel is configured to display a pre-display image, and the one-frame pre-display image is divided into an m-frame display screen, and the pixel unit corresponding to each pixel of the pre-display image sets a preset grayscale voltage and a preset brightness.
  • a backlight unit is provided to provide a backlight for the display panel.
  • the driving circuit is configured to apply a driving voltage to each of the pixel units on the display panel in each frame display screen, and adjust a backlight brightness of the backlight unit.
  • a difference between a driving voltage of at least one pixel unit in each n pixel units of the display panel and a corresponding preset gray scale voltage and driving of other pixel units The positive and negative signs of the difference between the voltage and the corresponding preset gray scale voltage are different.
  • the difference between the at least one driving voltage and the preset gray scale voltage of the pixel unit and the other driving voltages of the pixel driving preset gray scale in the m driving voltage of the m frame display screen The sign of the difference between the voltages is different, and the brightness average of the pixel unit in the m frame display screen is equal to the preset brightness of the pixel unit.
  • the product of the backlight brightness of each frame display picture in the m frame display picture and the sum of the driving voltages of all pixel units of the display panel are equal, wherein m and n are positive integers greater than or equal to 2.
  • a display device may include: a display panel, a backlight unit, and a driving circuit.
  • the display panel is configured to display a pre-display image, and the one-frame pre-display image is divided into two frame display screens, and the pixel unit corresponding to each pixel in the pre-display image sets a preset gray scale voltage and a preset brightness.
  • a backlight unit is provided to provide a backlight for the display panel.
  • the driving circuit is configured to apply a driving voltage to each of the pixel units on the display panel in each frame display screen, and adjust a backlight brightness of the backlight unit.
  • the positive and negative signs of the difference between the driving voltage of the adjacent pixel unit and the corresponding preset gray scale voltage in the display panel are different.
  • any one pixel unit is different from the difference between the driving voltage and the preset gray scale voltage and the difference between the other driving voltage and the preset gray scale voltage in the two driving voltages in the two frame display screen And the brightness average of the pixel unit in the two frames of the display screen is equal to the preset brightness.
  • any one of the pixel units has the same positive and negative sign of the difference between the two driving voltages in the two frame display screen and the corresponding reference driving voltage
  • the reference driving voltage is a common electrode driving corresponding to the zero gray scale liquid crystal display driving Voltage.
  • the difference between the at least one driving voltage and the preset gray scale voltage of the pixel unit and the other driving voltage and the preset gray scale voltage of the pixel unit makes the difference between the positive viewing angle and the side viewing angle after the m frame display screen is superimposed.
  • the variation is small, so that the color shift of the displayed image can be improved.
  • the product of the backlight brightness of each frame display screen in the m frame display screen is equal to the sum of the driving voltages of all the pixel units of the display panel, so that the display brightness of each frame display screen is equal, and the flicker can be avoided when the screen is switched. .
  • FIG. 1a is a schematic diagram of a first frame display screen in the embodiment.
  • FIG. 1b is a schematic diagram of a second frame display screen in the embodiment.
  • FIG. 2 is a schematic view of a display device in another embodiment.
  • the embodiment provides a driving method for a display device.
  • the method includes: dividing a frame of a pre-display image into an m-frame display image, where a pixel unit corresponding to each pixel in the pre-display image is set to a preset. Gray scale voltage and a preset brightness.
  • each pixel in the preset image has a one-to-one correspondence with the pixel unit on the display device array substrate, and the preset image may be displayed when a different driving voltage is applied to the pixel unit on the array substrate by the driving circuit.
  • an image animation is usually composed of a plurality of still images
  • a frame image may refer to a pair of still images, that is, a frame refers to a single still image of a minimum unit in the image animation
  • continuous Frames can form an image animation.
  • One frame of image includes a plurality of pixels, and each of the pixels may be disposed corresponding to a pixel unit on the array substrate.
  • the driving circuit applies different driving voltages to different pixel units, that is, preset gray scale voltages, thereby causing the display device to display the frame image.
  • a difference between a driving voltage of at least one pixel unit in each of the n pixel units on the display panel and a corresponding preset gray scale voltage and a driving voltage of the other pixel unit is different.
  • the difference between the at least one driving voltage and the preset gray scale voltage of the pixel unit and the other driving voltage and the preset gray scale voltage of the pixel unit in any one of the m driving voltages corresponding to the m frame display screen The difference sign is different, and any one of the pixel units displays the picture in the m frame
  • the brightness average is equal to the preset brightness of the pixel unit.
  • the difference between the driving voltage and the preset gray scale voltage is positive, and the driving voltage is greater than the preset gray scale voltage, and the difference between the driving voltage and the preset gray scale voltage is negative, and the driving voltage is less than the preset gray scale voltage.
  • the driving voltage is changed, the positive viewing angle and the side viewing angle after the m frame display screen are superimposed have different brightness variations.
  • the driving voltage is a large voltage or a small voltage, the difference in brightness between the positive viewing angle and the side viewing angle is small.
  • Different driving voltages are applied to the same pixel unit in different display screens, and the partial driving voltage is greater than the preset gray scale voltage, compared to the scheme of applying the same driving voltage to the same pixel unit in different display screens.
  • the voltage and the partial driving voltage are small voltages smaller than the preset gray scale voltage, and the difference in brightness between the front viewing angle and the side viewing angle becomes small, and the color shift of the displayed image can be improved.
  • the driving voltage of each pixel unit in each frame display screen can be flexibly set according to the viewing angle range requirement of the display panel.
  • the pre-display image of one frame is divided into an m-frame display screen in time series, and the average brightness of the backlight of the m-frame display screen of the same pixel unit is equal to the preset brightness of the pixel unit, so that the m-frame display screen can be sequentially displayed.
  • the image obtained by superimposing is a pre-display image.
  • the difference between the at least one driving voltage and the preset gray scale voltage of the pixel unit and the difference between the other driving voltage and the preset gray scale voltage of the pixel unit in any one of the m driving voltages corresponding to the m frame display screen The positive and negative signs are different, that is, among the m driving voltages corresponding to the pixel unit, a part of the driving voltage is greater than a preset gray scale voltage of the pixel unit, and another part of the driving voltage is smaller than a preset gray scale voltage corresponding to the pixel unit, thereby
  • the m-frame display screen can be sequentially displayed to display the superimposed pixel unit positive viewing angle and the side viewing angle luminance difference become smaller, thereby improving the visual character difference of the display device.
  • a difference between a driving voltage of at least one pixel unit in each n pixel units on the display panel and a corresponding preset gray scale voltage, and a driving voltage of the other pixel unit and a corresponding preset gray scale voltage The sign of the difference is different.
  • the difference between the driving voltage of the pixel unit and the corresponding preset grayscale voltage is positive, the display brightness of the pixel unit is brighter than the corresponding pixel in the pre-display image, and the difference between the driving voltage of the pixel unit and the corresponding preset grayscale voltage When negative, the display brightness of the pixel unit is darker than the corresponding pixel in the pre-displayed display image.
  • the positive and negative signs of the difference between the driving voltage and the corresponding preset gray scale voltage are different in the same frame display screen, so that the driving voltage distribution in the same frame display screen is relatively uniform, and the brightness distribution is more uniform. It avoids the same positive and negative signs of the difference between the pixel driving voltage of the same frame display and the corresponding preset grayscale voltage, and the uneven brightness causes flicker when the screen is switched.
  • the sum of the backlight brightness of each frame display screen and the driving voltage of all pixel units of the display panel in the m frame display screen The products are all equal, which can ensure that the display brightness of each frame is equal, avoiding flicker when the screen is switched.
  • a frame pre-display image is divided into m frame display screens in time series, and the driving voltage of the pixel unit applied in each frame display screen is adjusted, and the backlight brightness of the backlight unit of each frame display screen is adjusted,
  • the difference in visual function of the display device can be improved, the flicker problem when switching between different display screens can be avoided, and the image display quality can be improved.
  • one frame of the pre-display image is divided into an m-frame display screen
  • the backlight brightness of the first frame display screen is L1
  • the backlight brightness of the second frame display screen is L2, ..., the backlight brightness of the m-th frame display screen
  • Lm The sum of the driving voltages of all the pixel units of the first frame display screen display panel
  • R2 the sum of the driving voltages of all the pixel units of the second frame display screen display panel
  • the mth frame display screen displays all the pixel units of the panel
  • the sum of the driving voltages is Rm.
  • the backlight brightness of the pre-display image is L
  • the sum of the preset gray scale voltages of all the pixels is R.
  • R1*L1+R2*L2+...+Rm*Lm can be used to reflect the average display brightness of the m frame display screen, and R*L can reflect the pre- The image of the displayed image shows the brightness.
  • one frame of the pre-display image may be divided into two frame display screens, and the same pixel unit is different from the positive and negative signs of the difference between the two driving voltages of the two frame display screens and the corresponding preset gray scale voltages.
  • FIG. 1a is a schematic diagram of a first frame display screen in the embodiment
  • FIG. 1b is a schematic diagram of a second frame display screen in the embodiment.
  • "+” in the figure indicates that the difference between the driving voltage and the preset gray scale voltage is greater than zero
  • "-" indicates that the difference between the driving voltage and the preset gray scale voltage is less than zero.
  • the driving voltage of the display screen in the first frame adopts a larger voltage than the preset gray scale voltage
  • the driving voltage of the display screen in the second frame adopts a smaller voltage than the preset gray scale voltage
  • the red pixel unit 110 The difference in brightness between the front view and the side view of the first frame display screen and the second frame display screen is smaller than the pre-display image, so that the difference in brightness between the front view and the side view of the pre-displayed image becomes smaller after the two frames are superimposed. It can improve the bias of the big view and improve the image display quality. It should be noted that, in FIG. 1a and FIG.
  • the display panel includes pixel units of four colors of red R, green G, blue B, and white W is exemplarily illustrated, which is not limited to the disclosure, and other In an embodiment, only pixel units of three colors of R, G, and B or pixel units of other colors may be included.
  • the positive and negative signs of the difference between the driving voltages of the adjacent pixel units in the display panel and the corresponding preset gray scale voltages are different.
  • the setting is such that the driving voltages of the plurality of pixel units on the display panel are high and low phase distribution in the same frame display screen, so that the overall mean value of the driving voltages of all the pixel units of the different frame display screens is changed. It is not large, and it is possible to avoid flicker caused by the difference in the overall mean value of the brightness of different frame display screens when the display screen is switched.
  • the same pixel unit is the same as the sign of the difference between the m driving voltages of the m frame display screen and the reference driving voltage.
  • the reference driving voltage may drive a corresponding common electrode driving voltage to a zero gray scale liquid crystal display.
  • the difference between the m driving voltages of the pixel units in the m frame display screen and the difference between the reference driving voltages may be the same, that is, the m driving voltages are both greater than the reference driving voltage or less than the reference driving voltage.
  • the driving voltages of the red pixel unit 110 in the first frame display screen and the second frame display screen may both be greater than the reference driving voltage.
  • any one of the pixel units may have a different positive or negative difference between the m driving voltages in the m frame display screen and the reference driving voltage. That is, a portion of the m driving voltages is greater than the reference driving voltage, and another portion is smaller than the reference driving voltage.
  • the driving voltage of the red pixel unit 110 in the first frame display screen may be greater than the reference driving voltage
  • the driving voltage of the second frame display screen may be smaller than the reference driving voltage.
  • the method provided in this embodiment can make the display panel at an appropriate lower frequency or maintain the original of the display panel.
  • the display screen with higher quality at the driving frequency can reduce the manufacturing cost of the display device while ensuring high picture display quality.
  • the display panel is a vertical alignment liquid crystal display panel or a horizontal alignment liquid crystal display panel, and may also be another display panel that needs to improve the visual character deviation.
  • the problem of the large-view character bias of the liquid crystal display panel can be improved, and the image display quality is improved.
  • the difference between the at least one driving voltage and the preset gray scale voltage of the pixel unit and the other driving voltages of the pixel unit in the m frame display screen and the preset gray level of the pixel unit The positive and negative signs of the difference of the step voltages are different, so that the difference in brightness between the positive viewing angle and the side viewing angle of the pixel unit after the m frame display screen is superimposed is small, and the visual character difference can be improved.
  • the product of the backlight brightness of each frame display screen in the m frame display screen and the sum of the driving voltages of all the pixel units of the display panel are equal, which can ensure that the display brightness of each frame display screen is equal, and avoid flicker when the screen is switched.
  • the display device 10 includes: The display panel 11, the backlight unit 12, and the drive circuit 13.
  • the display panel 11 is configured to display a pre-display image, and a pre-display image of one frame is divided into an m-frame display screen, and each pixel in the pre-display image corresponds to a preset grayscale voltage and a preset luminance.
  • the backlight unit 12 is provided to provide a backlight for the display panel 11.
  • the drive circuit 13 is provided to apply a driving voltage to the pixel unit on the display panel 11, and adjust the backlight luminance of the backlight unit 12.
  • a difference between a driving voltage of at least one pixel unit in each n pixel units of the display panel and a corresponding preset gray scale voltage and driving of other pixel units are different.
  • the difference between the at least one driving voltage and the preset gray scale voltage of the pixel unit and the other driving voltages of the pixel unit in the m frame display screen, and other driving voltages and presets of the pixel unit are different, and the average brightness of any one of the pixel units in the m frame display screen is equal to the preset brightness of the pixel unit.
  • the product of the backlight brightness of each frame display picture in the m frame display picture and the sum of the driving voltages of all pixel units of the display panel are equal, wherein m and n are positive integers greater than or equal to 2.
  • an average value of the image display brightness of the m frame display screen is equal to an image display brightness of the pre-display image.
  • the display panel is configured to display a pre-display image
  • the one-frame pre-display image may be divided into two frame display screens, such as a first frame display screen and a second frame display screen.
  • the driving circuit supplies a first driving voltage to any one of the pixel units in the first frame display screen, and supplies a second driving voltage to the pixel unit in the second frame display screen.
  • the difference between the first driving voltage and the preset gray scale voltage of the pixel unit is different from the sign of the difference between the second driving voltage and the preset gray scale voltage of the pixel unit.
  • the driving circuit may be further configured to set a difference between a driving voltage provided by an adjacent pixel unit in the display panel and a corresponding preset gray scale voltage in any one of the m frame display screens.
  • the signs are different.
  • the driving circuit may be further configured to provide m driving voltages to any one of the pixel units in the m frame display screen, and the difference between the m driving voltages and the reference driving voltages of the pixel units respectively The symbols are the same.
  • the driving circuit is further configured to provide m driving voltages to any one of the pixel units in the m frame display screen, wherein the m driving voltages are respectively related to the reference driving voltage of the pixel unit The sign of the difference is different.
  • the display panel is a vertical alignment liquid crystal display panel or a horizontal alignment liquid crystal display panel.
  • the display device provided by this embodiment is the same as the display device driving method provided by any embodiment of the present disclosure, and can be used to implement the display device driving method.
  • the display device driving method provided by any embodiment of the present disclosure can be used to implement the display device driving method.
  • the present disclosure provides a driving method of a display device and a display device using the same, which can improve the visual bias of the display device and improve image display quality.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

一种显示装置的驱动方法及显示装置。所述方法可以包括：将一帧预显示图像划分为m帧显示画面；在同一帧显示画面中，显示面板上的每n个像素单元中至少一个像素单元的驱动电压与对应的预设灰阶电压之差和其他像素单元的驱动电压与对应的预设灰阶电压之差的正负符号不同；任意一个像素单元在m帧显示画面中的m个驱动电压中，至少一个驱动电压与所述像素单元的预设灰阶电压之差和其他驱动电压与所述像素单元的预设灰阶电压之差的正负符号不同，且所述像素单元在m帧显示画面的亮度均值等于预设亮度；m帧显示画面中每一帧显示画面的背光亮度与显示面板所有像素单元的驱动电压之和的乘积均相等。

Description

显示装置的驱动方法及显示装置 技术领域
本公开涉及液晶显示技术，例如涉及一种显示装置的驱动方法及显示装置。
背景技术
大尺寸液晶显示面板多采用垂直配向(Vertical Alignment，VA)液晶技术或平面转换(In-Plane Switching，IPS)液晶技术，VA液晶技术相较于IPS液晶技术具有较高的生产效率及低制造成本的优势，但VA型液晶显示装置在较大视角时存在视角色偏，影响显示效果。
为解决VA型液晶显示装置视角色偏，通常将显示面板中的多个像素单元划分为主像素和次像素，并对主像素和次像素分别施加不同的驱动电压。此时通常需要在显示面板上增加金属走线或薄膜晶体管元件来驱动次像素，造成透光区面积减小，影响面板透光率。
发明内容
本公开提供一种显示装置的驱动方法及显示装置，可以改善显示装置的视角色偏，提高图像显示质量。
一种显示装置的驱动方法，可以包括：将一帧预显示图像划分为m帧显示画面，所述预显示图像每一像素对应的像素单元设定一预设灰阶电压及一预设亮度；在所述m帧显示画面的任意一帧显示画面中，显示面板上的每n个像素单元中至少一个像素单元的驱动电压与对应的预设灰阶电压之差和其他像素单元的驱动电压与对应的预设灰阶电压之差的正负符号不同；任意一个像素单元在所述m帧显示画面中的m个驱动电压中，至少一个驱动电压与所述像素单元的预设灰阶电压之差和其他驱动电压与所述像素单元的预设灰阶电压之差的正负符号不同，且所述像素单元在所述m帧显示画面的亮度均值等于所述预设亮度；所述m帧显示画面中的每一帧显示画面的背光亮度与显示面板所有像素单元的驱动电压之和的乘积均相等，其中m和n均为大于或等于2的正整数。
一种显示装置，可以包括：显示面板、背光单元和驱动电路。
显示面板，设置为显示预显示图像，一帧预显示图像划分为m帧显示画面，所述预显示图像每一像素对应的像素单元设定一预设灰阶电压及一预设亮度。
背光单元，设置为为所述显示面板提供背光源。
驱动电路，设置为在每帧显示画面中，向所述显示面板上的每个像素单元施加驱动电压，并调整所述背光单元的背光亮度。
其中，在所述m帧显示画面中的任意一帧显示画面中，显示面板的每n个像素单元中至少一个像素单元的驱动电压与对应的预设灰阶电压之差和其他像素单元的驱动电压与对应的预设灰阶电压之差的正负符号不同。
其中，任意一个像素单元在所述m帧显示画面中的m个驱动电压中，至少一个驱动电压与所述像素单元预设灰阶电压之差和其他驱动电压与所述像素单元预设灰阶电压之差的正负符号不同，且所述像素单元在所述m帧显示画面的亮度均值等于所述像素单元的预设亮度。
其中，所述m帧显示画面中每一帧显示画面的背光亮度与显示面板所有像素单元的驱动电压之和的乘积均相等，其中m和n均为大于或等于2的正整数。
一种显示装置，可以包括：显示面板、背光单元和驱动电路。
显示面板，设置为显示预显示图像，一帧预显示图像划分为两帧显示画面，所述预显示图像中的每一像素对应的像素单元设定一预设灰阶电压及一预设亮度。
背光单元，设置为为所述显示面板提供背光源。
驱动电路，设置为在每帧显示画面中，向所述显示面板上的每个像素单元施加驱动电压，并调整所述背光单元的背光亮度。
其中，在所述两帧显示画面中的任意一帧显示画面中，显示面板中相邻像素单元的驱动电压与对应的预设灰阶电压之差的正负符号不同。
其中，任意一个像素单元在所述两帧显示画面中的两个驱动电压中，一个驱动电压与预设灰阶电压之差和另一个驱动电压与预设灰阶电压之差的正负符号不同，且所述像素单元在所述两帧显示画面的亮度均值等于所述预设亮度。
其中，所述两帧显示画面中每一帧显示画面的背光亮度与显示面板所有像素单元的驱动电压之和的乘积均相等。
其中，任意一个像素单元在所述两帧显示画面中的两个驱动电压与对应的基准驱动电压之差的正负符号相同，所述基准驱动电压为零灰阶液晶显示驱动对应的共电极驱动电压。
本实施例中，在任意一个像素单元的m个驱动电压中，至少一个驱动电压与所述像素单元的预设灰阶电压之差和其他驱动电压与所述像素单元的预设灰阶电压之差的正负符号不同，使得m帧显示画面叠加后正视角和侧视角亮度差 异变小，从而可以改善显示图像的色偏。另外m帧显示画面中每一帧显示画面的背光亮度与显示面板所有像素单元的驱动电压之和的乘积均相等，可以使得每一帧显示画面的显示亮度均相等，可以避免画面切换时出现闪烁。
附图说明
图1a是本实施例中的第一帧显示画面的示意图。
图1b是本实施例中的第二帧显示画面的示意图。
图2是本另一实施例中的一种显示装置的示意图。
具体实施方式
下面结合附图和实施例对本公开技术方案作说明。可以理解的是，此处所描述的实施例仅仅用于解释本公开，而非对本公开的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本公开实施例相关的部分而非全部结构。在不冲突的情况下，以下实施例和实施例中的特征可以相互组合。
本实施例提供了一种显示装置的驱动方法，所述方法包括：将一帧预显示图像划分为m帧显示画面，所述预显示图像中的每一像素对应的像素单元设定一预设灰阶电压及一预设亮度。
可选地，预设图像中的每个像素与显示装置阵列基板上的像素单元一一对应，当通过驱动电路对阵列基板上的像素单元施加不同的驱动电压时，可以显示该预设图像。
在相关技术中，影像动画通常是由多副静止图像组成的，一帧图像可以是指一副静止的图像，也就是说，帧指的是影像动画中最小单位的单幅静止图像，连续的帧可以形成影像动画。一帧图像包括多个像素，每个像素可以与阵列基板上的像素单元对应设置。在需要显示该帧图像时，驱动电路对不同的像素单元施加不同的驱动电压，即预设灰阶电压，从而使得显示装置显示该帧图像。
在所述m帧显示画面的同一帧显示画面中，显示面板上的每n个像素单元中至少一个像素单元的驱动电压与对应的预设灰阶电压之差和其他像素单元的驱动电压与对应的预设灰阶电压之差的正负符号不同。
任意一个像素单元在所述m帧显示画面对应的m个驱动电压中，至少一个驱动电压与该像素单元的预设灰阶电压之差和其他驱动电压与该像素单元的预设灰阶电压之差的正负符号不同，且任意一个像素单元在所述m帧显示画面的 亮度均值等于所述该像素单元的预设亮度。
所述m帧显示画面中每一帧显示画面的背光亮度与显示面板所有像素单元的驱动电压之和的乘积均相等，其中m和n均为大于或等于2的正整数。
其中，驱动电压与预设灰阶电压之差为正代表驱动电压大于预设灰阶电压，驱动电压与预设灰阶电压之差为负代表驱动电压小于预设灰阶电压。可选地，由于驱动电压变化时，m帧显示画面叠加后的正视角和侧视角对应的亮度变化不同，在驱动电压为大电压或小电压时，正视角和侧视角的亮度差异较小。相对于在不同的显示画面中对同一像素单元只施加同一个驱动电压的方案，在不同的显示画面中同一像素单元上施加不同的驱动电压，并且部分驱动电压为大于预设灰阶电压的大电压，部分驱动电压为小于预设灰阶电压的小电压的方案，正视角和侧视角亮度差异变小，可以改善显示图像的色偏。每一个像素单元在每一帧显示画面的驱动电压可以根据显示面板的视角范围要求进行灵活设定。
本实施例在时序上将一帧预显示图像划分为m帧显示画面，同一像素单元在所述m帧显示画面的背光亮度均值等于该像素单元的预设亮度，可以保证m帧显示画面依次显示时叠加得到的图像为预显示图像。并且任意一个像素单元在m帧显示画面对应的m个驱动电压中，至少一个驱动电压与该像素单元的预设灰阶电压之差和其他驱动电压与该像素单元的预设灰阶电压之差的正负符号不同，即在该像素单元对应的m个驱动电压中，一部分驱动电压大于该像素单元的预设灰阶电压，另一部分驱动电压小于该像素单元对应的预设灰阶电压，从而可以使得m帧显示画面依次显示叠加后像素单元正视角和侧视角亮度差异变小，改善显示装置的视角色差。
另外，同一帧显示画面中，显示面板上的每n个像素单元中至少一个像素单元的驱动电压与对应的预设灰阶电压之差和其他像素单元的驱动电压与对应的预设灰阶电压之差的正负符号不同。像素单元的驱动电压与对应的预设灰阶电压之差为正时，该像素单元的显示亮度较预显示图像中相应的像素亮，像素单元的驱动电压与对应的预设灰阶电压之差为负时，该像素单元的显示亮度较预显示显示图像中相应的像素暗。
m帧显示画面中，同一帧显示画面内同时存在驱动电压与对应的预设灰阶电压之差的正负符号不同，从而可以使得同一帧显示画面内驱动电压分布较为均匀，亮度分布更均匀，避免同一帧显示画面所有像素驱动电压与对应的预设灰阶电压之差的正负符号相同，亮度不均造成画面切换时出现闪烁。另外，m帧显示画面中每一帧显示画面的背光亮度与显示面板所有像素单元的驱动电压之和 的乘积均相等，可以保证每一帧显示画面的显示亮度均相等，避免画面切换时出现闪烁。
本实施例在时序上将一帧预显示图像划分为m帧显示画面，通过调整施加在每一帧显示画面内像素单元的驱动电压，并配合调整每一帧显示画面的背光单元的背光亮度，可以改善显示装置的视角色差，避免不同显示画面切换时的闪烁问题，提高图像显示质量。此外，本实施例无需在显示面板上增加金属走线或薄膜晶体管元件，可以提高显示面板的开口率。
示例性地，将一帧预显示图像划分为m帧显示画面，第一帧显示画面的背光亮度为L1，第二帧显示画面的背光亮度为L2，……，第m帧显示画面的背光亮度为Lm。第一帧显示画面显示面板所有像素单元的驱动电压之和为R1，第二帧显示画面显示面板所有像素单元的驱动电压之和为R2，……，第m帧显示画面显示面板所有像素单元的驱动电压之和为Rm。预显示图像的背光亮度为L，所有像素的预设灰阶电压之和为R。由于像素单元的驱动电压与透光率成正比例关系，(R1*L1+R2*L2+……+Rm*Lm)/m可以用于反映m帧显示画面的显示亮度均值，R*L可以反映预显示图像的图像显示亮度。由于同一像素单元在所述m帧显示画面的亮度均值等于预显示图像中对应的像素单元的预设亮度，因此本实施例的方法满足(R1*L1+R2*L2+……+Rm*Lm)/m＝R*L，即m帧显示画面的显示亮度的均值等于预显示图像的图像显示亮度，从而可以保证m帧显示画面叠加后的显示亮度与所述预显示图像的图像显示亮度相同，可以提高图像显示质量。
可选的，可以将一帧预显示图像划分为两帧显示画面，同一像素单元在所述两帧显示画面的两个驱动电压与相应的预设灰阶电压之差的正负符号不同。
图1a是本实施例中的第一帧显示画面的示意图；图1b是本实施例中的第二帧显示画面的示意图。参考图1a和图1b，图中“+”表示驱动电压与预设灰阶电压之差大于零，“-”表示驱动电压与预设灰阶电压之差小于零。以红色像素单元110为例，在第一帧显示画面的驱动电压采用大于预设灰阶电压大电压，在第二帧显示画面的驱动电压采用小于预设灰阶电压小电压，红色像素单元110在第一帧显示画面和第二帧显示画面正视角和侧视角的亮度差异均小于预显示图像，从而使得两帧显示画面叠加后相对于预显示图像正视角和侧视角的亮度差异变小，可以改善大视角色偏，提高图像显示质量。需要说明的是，图1a和图1b中仅示例性的示出了显示面板包括红色R、绿色G、蓝色B以及白色W四种颜色的像素单元的情况，并非对本公开的限定，在其他实施方式中，还可以只包括R、G、B三种颜色的像素单元或包括其他颜色的像素单元。
可选的，在所述m帧显示画面的同一帧显示画面中，显示面板中相邻像素单元的驱动电压与相应的预设灰阶电压之差的正负符号不同。
示例性的，参考图1a和图1b，这样设置使得同一帧显示画面内，显示面板上多个像素单元的驱动电压为高低相间分布，从而使得不同帧显示画面所有像素单元驱动电压的整体均值变化不大，可以避免显示画面切换时由于不同帧显示画面的亮度整体均值差异而造成闪烁。
可选的，同一像素单元在所述m帧显示画面的m个驱动电压与基准驱动电压之差的正负符号相同。
可选地，所述基准驱动电压可以为零灰阶液晶显示驱动对应的共电极驱动电压。任意一个像素单元在m帧显示画面中的m个驱动电压分别与基准驱动电压之差的正负可以相同，即m个驱动电压均大于基准驱动电压或均小于基准驱动电压。示例性的，图1a和图1b中，红色像素单元110在第一帧显示画面和第二帧显示画面的驱动电压可以均大于基准驱动电压。
可选的，任意一个像素单元在所述m帧显示画面中的m个驱动电压分别与基准驱动电压之差的正负可以不同。即m个驱动电压中的部分大于基准驱动电压，另一部分小于基准驱动电压。示例性的，图1a和图1b中，红色像素单元110在第一帧显示画面的驱动电压可以大于基准驱动电压，在第二帧显示画面的驱动电压可以小于基准驱动电压。
可选地，当驱动频率较大时，会造成资源和能量的损耗，显示面板制作成本较高，而本实施例提供的方法，可以使得显示面板在适当较低频率下或维持显示面板的原驱动频率下仍具较高质量的显示画面，从而在保证具有较高的画面显示质量的同时，可以降低显示装置的制作成本。
可选的，所述显示面板为垂直配向液晶显示面板或水平配向液晶显示面板，也可以为其他需要改善视角色偏的显示面板。通过采用本实施例提供的显示装置驱动方法，可以改善液晶显示面板的大视角色偏问题，提高图像显示质量。
本实施例中，任意一个像素单元在m帧显示画面中的m个驱动电压中，至少一个驱动电压与该像素单元的预设灰阶电压之差和其他驱动电压与该像素单元的预设灰阶电压之差的正负符号不同，使得m帧显示画面叠加后像素单元正视角和侧视角的亮度差异较小，可以改善视角色差。另外m帧显示画面中每一帧显示画面的背光亮度与显示面板所有像素单元的驱动电压之和的乘积均相等，可以保证每一帧显示画面的显示亮度均相等，避免画面切换时出现闪烁。
图2是本实施例中的一种显示装置的示意图，参考图2，显示装置10包括： 显示面板11、背光单元12和驱动电路13。
显示面板11设置为显示预显示图像，一帧预显示图像划分为m帧显示画面，所述预显示图像中的每一像素对应一预设灰阶电压及一预设亮度。
背光单元12设置为为显示面板11提供背光源。
驱动电路13设置为向显示面板11上的像素单元施加驱动电压，并调整背光单元12的背光亮度。
可选地，在所述m帧显示画面的同一帧显示画面中，显示面板的每n个像素单元中至少一个像素单元的驱动电压与对应的预设灰阶电压之差和其他像素单元的驱动电压与对应的预设灰阶电压之差的正负符号不同。
可选地，任意一个像素单元在所述m帧显示画面中的m个驱动电压中，至少一个驱动电压与该像素单元的预设灰阶电压之差和其他驱动电压与该像素单元的预设灰阶电压之差的正负符号不同，任意一个像素单元在所述m帧显示画面的亮度均值等于该像素单元的预设亮度。
可选地，所述m帧显示画面中每一帧显示画面的背光亮度与显示面板所有像素单元的驱动电压之和的乘积均相等，其中m和n均为大于或等于2的正整数。
可选的，所述m帧显示画面的图像显示亮度的均值等于所述预显示图像的图像显示亮度。
可选的，所述显示面板，设置为显示预显示图像，一帧预显示图像可以划分为两帧显示画面，例如第一帧显示画面和第二帧显示画面。所述驱动电路在第一帧显示画面中，向任意一个像素单元提供第一驱动电压，在第二帧显示画面中，向该像素单元提供第二驱动电压。所述第一驱动电压与所述像素单元的预设灰阶电压之差与所述第二驱动电压与所述像素单元的预设灰阶电压之差的正负符号不同。
可选的，所述驱动电路还可以设置为在所述m帧显示画面中的任意一帧显示画面中，向显示面板中相邻像素单元提供的驱动电压与相应的预设灰阶电压之差的正负符号不同。
可选的，所述驱动电路还可以设置为在m帧显示画面中，向任意一个像素单元分别提供m个驱动电压，该m个驱动电压分别与该像素单元的基准驱动电压之差的正负符号相同。
可选的，该驱动电路还可以设置为在m帧显示画面中，向任意一个像素单元分别提供m个驱动电压，该m个驱动电压分别与该像素单元的基准驱动电压 之差的正负符号不同。
可选的，所述显示面板为垂直配向液晶显示面板或水平配向液晶显示面板。
本实施例提供的显示装置，与本公开任意实施例所提供的显示装置驱动方法属于同一公开构思，可以用于实现显示装置驱动方法。未在本实施例中详尽描述的技术细节，可参见本公开任意实施例提供的显示装置驱动方法的技术方案。
工业实用性
本公开提供了一种显示装置的驱动方法和应用该驱动方法的显示装置，可以改善该显示装置的视角色偏，提高图像显示质量。

Claims (20)

  1. 一种显示装置的驱动方法，包括：
    将一帧预显示图像划分为m帧显示画面，所述预显示图像每一像素对应的像素单元设定一预设灰阶电压和一预设亮度；
    在所述m帧显示画面的任意一帧显示画面中，显示面板上的每n个像素单元中至少一个像素单元的驱动电压与对应的预设灰阶电压之差和其他像素单元的驱动电压与对应的预设灰阶电压之差的正负符号不同；
    任意一个像素单元在所述m帧显示画面中的m个驱动电压中，至少一个驱动电压与所述像素单元的预设灰阶电压之差和其他驱动电压与所述像素单元的预设灰阶电压之差的正负符号不同，且所述像素单元在所述m帧显示画面的亮度均值等于所述预设亮度；以及
    所述m帧显示画面中的每一帧显示画面的背光亮度与显示面板所有像素单元的驱动电压之和的乘积均相等，其中m和n均为大于或等于2的正整数。
  2. 根据权利要求1所述的方法，其中，
    将一帧预显示图像划分为两帧显示画面，任意一个像素单元在所述两帧显示画面中的两个驱动电压与相应的预设灰阶电压之差的正负符号不同。
  3. 根据权利要求1所述的方法，其中，
    在所述m帧显示画面中的任意一帧显示画面中，显示面板中相邻像素单元的驱动电压与对应的预设灰阶电压之差的正负符号不同。
  4. 根据权利要求1所述的方法，其中，任意一个像素单元在所述m帧显示画面中的m个驱动电压与所述像素单元的基准驱动电压之差的正负符号相同。
  5. 根据权利要求1所述的方法，其中，任意一个像素单元在所述m帧显示画面中的m个驱动电压与所述像素单元的基准驱动电压之差的正负符号不同。
  6. 根据权利要求4或5所述的方法，其中，所述基准驱动电压为零灰阶液晶显示驱动对应的共电极驱动电压。
  7. 根据权利要求1所述的方法，其中，所述显示面板为垂直配向液晶显示面板或水平配向液晶显示面板。
  8. 根据权利要求1所述的方法，其中，所述像素单元包括红色像素单元、绿色像素单元和蓝色像素单元。
  9. 根据权利要求8所述的方法，其中，所述像素单元还包括白色像素单元。
  10. 一种显示装置，包括：
    显示面板，设置为显示预显示图像，一帧预显示图像划分为m帧显示画面，所述预显示图像每一像素对应的像素单元设定一预设灰阶电压及一预设亮度；
    背光单元，设置为为所述显示面板提供背光源；
    驱动电路，设置为在每帧显示画面中，向所述显示面板上的每个像素单元施加驱动电压，并调整所述背光单元的背光亮度；
    其中，在所述m帧显示画面中的任意一帧显示画面中，显示面板的每n个像素单元中至少一个像素单元的驱动电压与对应的预设灰阶电压之差和其他像素单元的驱动电压与对应的预设灰阶电压之差的正负符号不同；
    其中，任意一个像素单元在所述m帧显示画面中的m个驱动电压中，至少一个驱动电压与所述像素单元预设灰阶电压之差和其他驱动电压与所述像素单元预设灰阶电压之差的正负符号不同，且所述像素单元在所述m帧显示画面的亮度均值等于所述像素单元的预设亮度；
    其中，所述m帧显示画面中每一帧显示画面的背光亮度与显示面板所有像素单元的驱动电压之和的乘积均相等，其中m和n均为大于或等于2的正整数。
  11. 根据权利要求10所述的装置，其中，
    所述显示面板，设置为显示预显示图像，一帧预显示图像包括第一帧显示画面和第二帧显示画面；
    所述驱动电路，设置为在第一帧显示画面中，向任意一个像素单元提供第一驱动电压，在第二帧显示画面中，向所述像素单元提供第二驱动电压，
    其中，所述第一驱动电压与所述像素单元的预设灰阶电压之差与第二驱动电压与预设灰阶电压之差的正负符号不同。
  12. 根据权利要求10所述的装置，其中，
    所述驱动电路，设置为在所述m帧显示画面中的任意一帧显示画面中，向显示面板中相邻像素单元提供的驱动电压与相应的预设灰阶电压之差的正负符号不同。
  13. 根据权利要求10所述的装置，其中，
    所述驱动电路，设置为在所述m帧显示画面中，向任意一个像素单元分别提供m个驱动电压，所述m个驱动电压分别与所述像素单元的基准驱动电压之差的正负符号相同。
  14. 根据权利要求10所述的装置，其中，
    所述驱动电路，设置为在所述m帧显示画面中，向任意一个像素单元分别提供m个驱动电压，所述m个驱动电压分别与所述像素单元的基准驱动电压之差的正负符号不同。
  15. 根据权利要求13或14所述的装置，其中，所述基准驱动电压为零灰 阶液晶显示驱动对应的共电极驱动电压。
  16. 根据权利要求10所述的装置，其中，所述像素单元包括红色像素单元、绿色像素单元和蓝色像素单元。
  17. 根据权利要求16所述的装置，其中，所述像素单元还包括白色像素单元。
  18. 根据权利要求10所述的装置，其中，所述显示面板为垂直配向液晶显示面板。
  19. 根据权利要求10所述的装置，其中，所述显示面板为水平配向液晶显示面板。
  20. 一种显示装置，包括：
    显示面板，设置为显示预显示图像，一帧预显示图像划分为两帧显示画面，所述预显示图像中的每一像素对应的像素单元设定一预设灰阶电压及一预设亮度；
    背光单元，设置为为所述显示面板提供背光源；
    驱动电路，设置为在每帧显示画面中，向所述显示面板上的每个像素单元施加驱动电压，并调整所述背光单元的背光亮度；
    其中，在所述两帧显示画面中的任意一帧显示画面中，显示面板中相邻像素单元的驱动电压与对应的预设灰阶电压之差的正负符号不同
    其中，任意一个像素单元在所述两帧显示画面中的两个驱动电压中，一个驱动电压与预设灰阶电压之差和另一个驱动电压与预设灰阶电压之差的正负符号不同，且所述像素单元在所述两帧显示画面的亮度均值等于所述预设亮度；
    其中，所述两帧显示画面中每一帧显示画面的背光亮度与显示面板所有像素单元的驱动电压之和的乘积均相等；
    其中，任意一个像素单元在所述两帧显示画面中的两个驱动电压与对应的基准驱动电压之差的正负符号相同，所述基准驱动电压为零灰阶液晶显示驱动对应的共电极驱动电压。
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