WO2016201791A1 - 用于液晶面板的极性反转的驱动方法 - Google Patents

用于液晶面板的极性反转的驱动方法 Download PDF

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Publication number
WO2016201791A1
WO2016201791A1 PCT/CN2015/088515 CN2015088515W WO2016201791A1 WO 2016201791 A1 WO2016201791 A1 WO 2016201791A1 CN 2015088515 W CN2015088515 W CN 2015088515W WO 2016201791 A1 WO2016201791 A1 WO 2016201791A1
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sub
frames
polarity
predetermined number
liquid crystal
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English (en)
French (fr)
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陈黎暄
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/778,923 priority Critical patent/US9972258B2/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3614—Control of polarity reversal in general
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • 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
    • G09G3/3666—Control of matrices with row and column drivers using an active matrix with the matrix divided into sections
    • 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
    • G09G2310/0243—Details of the generation of driving signals
    • 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
    • G09G2310/0289—Details of voltage level shifters arranged for use in a driving circuit
    • 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
    • G09G2340/16—Determination of a pixel data signal depending on the signal applied in the previous frame

Definitions

  • the invention belongs to the technical field of liquid crystal displays, and more particularly to a driving method for polarity inversion of a liquid crystal panel.
  • IS Image Sticking
  • LCDs liquid crystal displays
  • a simple DC electric field drives the deflection of liquid crystal molecules in the LCD, which easily induces a polarized electric field in the material to generate a polar electric field, resulting in a constant DC bias, which causes IS phenomenon.
  • the industry often uses a positive and negative polarity inversion voltage drive. Ways to improve this phenomenon.
  • the IS phenomenon often occurs when displaying static images for a long time.
  • the LCD adopts a voltage driving method in which the positive and negative polarity of the fixed common voltage (VCOM) is reversed
  • the polarity reversal voltage is asymmetrical due to the partial position of the entire liquid crystal panel (that is, the positive polarity voltage and the negative electrode relative to VCOM).
  • the voltage is not equal, and the liquid crystal panel blinks.
  • Multi-VCOM technology which is driven by setting different VCOMs for different areas of the liquid crystal panel, but the application cost of this technology is high.
  • an exemplary embodiment of the present invention provides a driving method capable of improving polarity inversion of a residual image problem of a liquid crystal panel when displaying an image.
  • a driving method for polarity inversion of a liquid crystal panel wherein sub-pixels of a predetermined region of the liquid crystal panel are driven in cycles of consecutive m frames, m is An integer greater than 4, wherein a polarity of the sub-pixel driving voltages of the consecutive first predetermined number of frames of the m frames is the same, except for the first predetermined number of frames in the m frames The polarity of the sub-pixel driving voltage of each frame is opposite to the polarity of the sub-pixel driving voltage of the adjacent frame.
  • m is an odd number greater than the first predetermined number
  • m is an even number greater than the first predetermined number
  • the predetermined area is an entire area of the liquid crystal panel.
  • the predetermined area is one of a plurality of areas of the liquid crystal panel.
  • driving is performed in a period of consecutive n frames, where n is an integer greater than 4, wherein consecutive ones of the n frames
  • n is an integer greater than 4
  • the polarity of the sub-pixel driving voltage of the two predetermined number of frames is the same, and the polarity of the sub-pixel driving voltage of each frame other than the second predetermined number of frames and the sub-frame of the adjacent frame
  • the polarity of the pixel drive voltage is opposite.
  • n is an odd number greater than the second predetermined number
  • n is an even number greater than the second predetermined number
  • the polarity of the sub-pixel driving voltage of the ith frame in the m consecutive frames is opposite to the polarity of the sub-pixel driving voltage of the ith frame in the n consecutive frames, where i ⁇ [1,m].
  • the polarities of the sub-pixel driving voltages of the five consecutive frames driven by the one region are respectively positive.
  • negative, positive, positive, negative the polarity of the sub-pixel driving voltages of the five consecutive frames driven by the other region are negative, positive, negative, negative, positive, respectively, or driven for the one region
  • the polarities of the sub-pixel driving voltages of the five consecutive frames are negative, positive, negative, negative, and positive, respectively, and the polarities of the sub-pixel driving voltages of the five consecutive frames driven by the other region are positive and negative, respectively.
  • a driving method for polarity inversion of a liquid crystal panel can improve an afterimage problem when a liquid crystal panel displays an image. In addition, it is also possible to improve the flicker problem of the liquid crystal panel.
  • FIG. 1 is a schematic view showing a polarity change of a sub-pixel driving voltage of a sub-pixel driving one of a plurality of regions of a liquid crystal panel in a partial frame, according to an exemplary embodiment of the present invention
  • FIG. 2 is a schematic view showing a change in polarity of a sub-pixel driving voltage of a sub-pixel driving another one of a plurality of regions of a liquid crystal panel in a partial frame, according to an exemplary embodiment of the present invention.
  • An exemplary embodiment of the present invention provides a driving method for polarity inversion of a liquid crystal panel that is driven in a period of consecutive m frames for sub-pixels of a predetermined region of the liquid crystal panel. That is, the sub-pixels of the predetermined region of the liquid crystal panel are driven cyclically by the polarity of the sub-pixel driving voltage of each of the m frames.
  • m is an integer greater than 4, and the polarity of the sub-pixel driving voltages of the consecutive first predetermined number of frames in the m frames is the same, except for the first predetermined number of frames in the m frames
  • the polarity of the sub-pixel driving voltage of each frame outside is opposite to the polarity of the sub-pixel driving voltage of the adjacent frame.
  • the liquid crystal panel may be various existing liquid crystal panels.
  • a continuous first predetermined number of frames of the same polarity of the sub-pixel driving voltage may be at any of the m frames, and preferably may be disposed at a position close to the last frame among the m frames.
  • the first predetermined number may be any integer greater than one (eg, the first predetermined number is two).
  • the first predetermined number is an even number
  • m is an odd number greater than the first predetermined number
  • m is an even number greater than the first predetermined number.
  • the value of m can be selected by experiments, or can be theoretically calculated based on the knowledge of related technical fields.
  • the predetermined area may be the entire area of the liquid crystal panel, that is, all of the sub-pixels of the liquid crystal panel are driven with the same period (ie, the same consecutive m frames). At this time, it becomes a frame inversion driving method including the driving method of the exemplary embodiment of the present invention.
  • the predetermined area may also be one of a plurality of areas of the liquid crystal panel. At this time, sub-pixels of other regions in the plurality of regions of the liquid crystal panel can be driven by various existing driving methods.
  • sub-pixels of the other of the plurality of regions of the liquid crystal panel may be driven in cycles of consecutive n frames.
  • n is an integer greater than 4
  • the polarity of the sub-pixel driving voltages of the consecutive second predetermined number of frames in the n frames is the same, except for the second predetermined number of frames in the n frames
  • the polarity of the sub-pixel driving voltage of each frame outside is opposite to the polarity of the sub-pixel driving voltage of the adjacent frame.
  • a continuous second predetermined number of frames of the same polarity of the sub-pixel driving voltage may be at any of the n frames, preferably, may be disposed near the last of the n frames The position of a frame.
  • the second predetermined number may be any integer greater than one (eg, the second predetermined number is two).
  • the second predetermined number is an even number
  • n is an odd number greater than the second predetermined number
  • n is an even number greater than the second predetermined number.
  • the value of n can be selected by experiments, or can be theoretically calculated based on the knowledge of related technical fields.
  • the values of n and m may or may not be equal.
  • the second predetermined number may or may not be equal to the first predetermined number of values.
  • the positions of the consecutive second predetermined number of frames having the same polarity of the sub-pixel driving voltages in the n frames may be the same as the positions of the first predetermined number of frames in the m frames, or may not the same.
  • the polarity of the sub-pixel driving voltage of the i-th frame in m consecutive frames is opposite to the polarity of the sub-pixel driving voltage of the i-th frame in n consecutive frames.
  • i [1,m].
  • the polarity of the sub-pixel driving voltage of each of the n consecutive frames is opposite to the polarity of the sub-pixel driving voltage of the corresponding frame of the m consecutive frames.
  • the pole of the sub-pixel driving voltage of 5 consecutive frames driven by one of the plurality of regions of the liquid crystal panel may be positive, negative, positive, positive, and negative (as shown in FIG. 1), and the polarity of the sub-pixel driving voltages of the five consecutive frames driven by the other region may be negative, positive, negative, respectively.
  • Negative and positive as shown in Figure 2).
  • FIG. 1 is a schematic view showing a change in polarity of a sub-pixel driving voltage of a sub-pixel driving one of a plurality of regions of a liquid crystal panel in a partial frame, according to an exemplary embodiment of the present invention.
  • FIG. 1 only the polarity of the sub-pixel driving voltage of each of 10 frames (ie, two periods) is shown as an example. It will be understood that the invention is not limited thereto.
  • the polarity of the sub-pixel driving voltage above the VCOM line is positive, and the polarity of the sub-pixel driving voltage below the VCOM line is negative.
  • FIG. 2 is a schematic view showing a change in polarity of a sub-pixel driving voltage of a sub-pixel driving another one of a plurality of regions of a liquid crystal panel in a partial frame, according to an exemplary embodiment of the present invention.
  • FIG. 2 only the polarity of the sub-pixel driving voltage of each of 10 frames (ie, two periods) is shown as an example. It will be understood that the invention is not limited thereto.
  • the polarity of the sub-pixel driving voltage above the VCOM line is positive, and the polarity of the sub-pixel driving voltage below the VCOM line is negative.
  • the polarity of the sub-pixel driving voltages of the five consecutive frames driven by the one region may be negative, respectively.
  • Positive, negative, negative, Positive, the polarity of the sub-pixel driving voltages of the five consecutive frames driven by the other region may be positive, negative, positive, positive, and negative, respectively.
  • the exemplary embodiment of the present invention is included
  • the column inversion driving method of the driving method is included.
  • the plurality of regions are two regions, wherein the one region is a sub-pixel whose sum of the row number and the column number of the liquid crystal panel is an odd number, and the other region is an even number of the row number and the column number of the liquid crystal panel
  • the sub-pixel is a dot inversion driving method including the driving method of the exemplary embodiment of the present invention.
  • the exemplary embodiment of the present invention is included
  • the row inversion driving method of the driving method is included.
  • a driving method for polarity inversion of a liquid crystal panel compensates for various causes by adding a positive polarity driving voltage or a negative polarity driving voltage of a predetermined number of frames in one cycle
  • the DC bias voltage can improve the afterimage problem of the liquid crystal panel when displaying an image.
  • the problem of flicker of the liquid crystal panel can also be improved.

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

Abstract

一种用于液晶面板的极性反转的驱动方法，对于液晶面板的预定区域的子像素，以连续的m个帧为周期进行驱动，m为大于4的整数，其中，m个帧中的连续的第一预定数量的帧的子像素驱动电压的极性相同，m个帧中除所述第一预定数量的帧之外的每个帧的子像素驱动电压的极性与相邻帧的子像素驱动电压的极性相反。该驱动方法能够改善液晶面板在显示图像时的残像问题。

Description

用于液晶面板的极性反转的驱动方法 技术领域
本发明属于液晶显示器技术领域，更具体地说，涉及一种用于液晶面板的极性反转的驱动方法。
背景技术
IS(Image Sticking：图像残留)是一种在LCD(液晶显示器)上常见的不良现象。单纯的直流电场驱动LCD中液晶分子偏转，很容易诱导材料中的极化分子产生极性电场，导致恒定的直流偏压存在，从而引起IS现象，业界往往采用正负极性反转的电压驱动方式来改善这一现象。但由于材料污染，制程不良或其他原因，IS现象在长时间显示固定静态画面时屡有发生。
另外，在LCD采用固定公共电压(VCOM)的正负极性反转的电压驱动方式时，由于整个液晶面板的部分位置的极性反转电压不对称(即，相对VCOM的正极性电压与负极性电压不相等)，而使得液晶面板闪烁。虽然，对于这一问题，业界提出了Multi-VCOM技术，通过对液晶面板的不同区域设定不同的VCOM来进行驱动，但是，这一技术的应用成本较高。
发明内容
为克服现有技术的不足，本发明的示例性实施例提供一种能够改善液晶面板在显示图像时的残像问题的极性反转的驱动方法。
根据本发明的示例性实施例，提供一种用于液晶面板的极性反转的驱动方法，其中，对于液晶面板的预定区域的子像素，以连续的m个帧为周期进行驱动，m为大于4的整数，其中，所述m个帧中的连续的第一预定数量的帧的子像素驱动电压的极性相同，所述m个帧中除所述第一预定数量的帧之外的每个帧的子像素驱动电压的极性与相邻帧的子像素驱动电压的极性相反。
可选地，在第一预定数量为偶数的情况下，m为大于所述第一预定数量的奇数，在第一预定数量为奇数的情况下，m为大于所述第一预定数量的偶数。
可选地，所述预定区域为液晶面板的整个区域。
可选地，所述预定区域为液晶面板的多个区域中的一个区域。
可选地，对于液晶面板的多个区域中的另一个区域的子像素，以连续的n个帧为周期进行驱动，n为大于4的整数，其中，所述n个帧中的连续的第二预定数量的帧的子像素驱动电压的极性相同，所述n个帧中除所述第二预定数量的帧之外的每个帧的子像素驱动电压的极性与相邻帧的子像素驱动电压的极性相反。
可选地，在第二预定数量为偶数的情况下，n为大于所述第二预定数量的奇数，在第二预定数量为奇数的情况下，n为大于所述第二预定数量的偶数。
可选地，在m＝n时，m个连续帧中的第i帧的子像素驱动电压的极性与n个连续帧中的第i帧的子像素驱动电压的极性相反，其中，i∈[1，m]。
可选地，在第一预定数量为2，m＝5，第二预定数量为2，n＝5时，对所述一个区域驱动的5个连续帧的子像素驱动电压的极性分别为正、负、正、正、负，对所述另一个区域驱动的5个连续帧的子像素驱动电压的极性分别为负、正、负、负、正，或者，对所述一个区域驱动的5个连续帧的子像素驱动电压的极性分别为负、正、负、负、正，对所述另一个区域驱动的5个连续帧的子像素驱动电压的极性分别为正、负、正、正、负。
根据本发明的示例性实施例的用于液晶面板的极性反转的驱动方法，能够改善液晶面板在显示图像时的残像问题。此外，还能够改善液晶面板的闪烁问题。
将在接下来的描述中部分阐述本发明另外的方面和/或优点，还有一部分通过描述将是清楚的，或者可以经过本发明的实施而得知。
附图说明
通过下面结合附图进行的对实施例的描述，本发明的上述和/或其它目的和优点将会变得更加清楚，其中：
图1是示出根据本发明示例性实施例的驱动液晶面板的多个区域中的一个区域的子像素的子像素驱动电压在部分帧中的极性变化的示意图；
图2是示出根据本发明示例性实施例的驱动液晶面板的多个区域中的另一个区域的子像素的子像素驱动电压在部分帧中的极性变化的示意图。
具体实施方式
现将详细描述本发明的示例性实施例，所述实施例的示例在附图中示出，其中，相同的标号指示相同的部分。以下将通过参照附图来说明所述实施例，以便解释本发明。
本发明的示例性实施例提供一种用于液晶面板的极性反转的驱动方法，所述驱动方法对于液晶面板的预定区域的子像素，以连续的m个帧为周期进行驱动。即，循环地按所述m个帧中的每个帧的子像素驱动电压的极性来驱动液晶面板的预定区域的子像素。这里，m为大于4的整数，所述m个帧中的连续的第一预定数量的帧的子像素驱动电压的极性相同，所述m个帧中除所述第一预定数量的帧之外的每个帧的子像素驱动电压的极性与相邻帧的子像素驱动电压的极性相反。这里，液晶面板可以为现有的各种液晶面板。子像素驱动电压的极性相同的连续的第一预定数量的帧可以在所述m个帧中的任意位置，优选地，可设置在所述m个帧中的靠近最后一帧的位置。
可以理解，第一预定数量可以为任意大于1的整数(例如，第一预定数量为2)。本领域技术人员可以根据实际情况及相关经验进行设定。在所述第一预定数量为偶数的情况下，m为大于所述第一预定数量的奇数；在所述第一预定数量为奇数的情况下，m为大于所述第一预订数量的偶数。这里，m的值可通过实验来选取，也可在相关技术领域知识的基础上通过理论计算得出。
所述预定区域可以为液晶面板的整个区域，即，对液晶面板的所有子像素都采用相同的周期(即，相同的连续的m个帧)进行驱动。此时，成为含有本发明的示例性实施例的驱动方法的帧反转驱动方法。
另外，所述预定区域还可以为液晶面板的多个区域中的一个区域。此时，对液晶面板的多个区域中的其他区域的子像素可以采用现有的各种驱动方法进行驱动。
作为一个优选示例，对于液晶面板的多个区域中的另一个区域的子像素，可以以连续的n个帧为周期进行驱动。这里，n为大于4的整数，所述n个帧中的连续的第二预定数量的帧的子像素驱动电压的极性相同，所述n个帧中除所述第二预定数量的帧之外的每个帧的子像素驱动电压的极性与相邻帧的子像素驱动电压的极性相反。子像素驱动电压的极性相同的连续的第二预定数量的帧可以在所述n个帧中的任意位置，优选地，可设置在所述n个帧中的靠近最后 一帧的位置。
可以理解，第二预定数量可以为任意大于1的整数(例如，第二预定数量为2)。本领域技术人员可以根据实际情况及相关经验进行设定。在所述第二预定数量为偶数的情况下，n为大于所述第二预定数量的奇数；在所述第二预定数量为奇数的情况下，n为大于所述第二预订数量的偶数。这里，n的值可通过实验来选取，也可在相关技术领域知识的基础上通过理论计算得出。
这里，n与m的值可以相等，也可以不相等。第二预定数量与第一预定数量的值可以相等，也可以不相等。子像素驱动电压的极性相同的连续的第二预定数量的帧在所述n个帧中的位置与所述第一预定数量的帧在所述m个帧中的位置可以相同，也可以不相同。
作为示例，在m＝n时，m个连续帧中的第i帧的子像素驱动电压的极性与n个连续帧中的第i帧的子像素驱动电压的极性相反。这里，i∈[1，m]。
换言之，n个连续帧中的每个帧的子像素驱动电压的极性与m个连续帧中的对应的帧的子像素驱动电压的极性相反。
例如，在第一预定数量为2，m＝5，第二预定数量为2，m＝5时，对液晶面板的多个区域中的一个区域驱动的5个连续帧的子像素驱动电压的极性可分别为正、负、正、正、负(如图1所示)，对所述另一个区域驱动的5个连续帧的子像素驱动电压的极性可分别为负、正、负、负、正(如图2所示)。
图1是示出根据本发明示例性实施例的驱动液晶面板的多个区域中的一个区域的子像素的子像素驱动电压在部分帧中的极性变化的示意图。图1中，作为示例仅示出10帧(即，两个周期)中每个帧的子像素驱动电压的极性。可以理解，本发明并不限于此。如图1所示，位于VCOM线上方的子像素驱动电压的极性为正，位于VCOM线下方的子像素驱动电压的极性为负。
图2是示出根据本发明示例性实施例的驱动液晶面板的多个区域中的另一个区域的子像素的子像素驱动电压在部分帧中的极性变化的示意图。图2中，作为示例仅示出10帧(即，两个周期)中每个帧的子像素驱动电压的极性。可以理解，本发明并不限于此。如图2所示，位于VCOM线上方的子像素驱动电压的极性为正，位于VCOM线下方的子像素驱动电压的极性为负。
另外，在第一预定数量为2，m＝5，第二预定数量为2，m＝5时，对所述一个区域驱动的5个连续帧的子像素驱动电压的极性可分别为负、正、负、负、 正，对所述另一个区域驱动的5个连续帧的子像素驱动电压的极性可分别为正、负、正、正、负。
可以理解，液晶面板的多个区域中的除所述一个区域和所述另一个区域之外的其他区域可以采用各种现有的驱动方法进行驱动。可以根据实际情况来判断。
在所述多个区域为两个区域，所述一个区域为液晶面板的奇数列的子像素，所述另一个区域为液晶面板的偶数列的子像素时，成为含有本发明的示例性实施例的驱动方法的列反转驱动方法。
在所述多个区域为两个区域，所述一个区域为液晶面板的行号与列号之和为奇数的子像素，所述另一个区域为液晶面板的行号与列号之和为偶数的子像素时，成为含有本发明的示例性实施例的驱动方法的点反转驱动方法。
在所述多个区域为两个区域，所述一个区域为液晶面板的奇数行的子像素，所述另一个区域为液晶面板的偶数行的子像素时，成为含有本发明的示例性实施例的驱动方法的行反转驱动方法。
根据本发明的示例性实施例的用于液晶面板的极性反转的驱动方法，通过在一个周期中加入预定数量的帧的正极性驱动电压或负极性驱动电压来补偿由各种原因产生的直流偏压，从而能够改善液晶面板在显示图像时的残像问题。此外，通过对液晶面板的不同区域采用不同的周期和极性进行驱动，还能够改善液晶面板的闪烁问题。
本发明的以上实施例仅仅是示例性的，而本发明并不受限于此。本领域技术人员应该理解：在不脱离本发明的原理和精神的情况下，可对这些实施例进行改变，其中，本发明的范围在权利要求及其等同物中限定。

Claims (8)

  1. 一种用于液晶面板的极性反转的驱动方法，其中，对于液晶面板的预定区域的子像素，以连续的m个帧为周期进行驱动，m为大于4的整数，
    其中，所述m个帧中的连续的第一预定数量的帧的子像素驱动电压的极性相同，所述m个帧中除所述第一预定数量的帧之外的每个帧的子像素驱动电压的极性与相邻帧的子像素驱动电压的极性相反。
  2. 根据权利要求1所述的驱动方法，其中，
    在第一预定数量为偶数的情况下，m为大于所述第一预定数量的奇数；
    在第一预定数量为奇数的情况下，m为大于所述第一预定数量的偶数。
  3. 根据权利要求2所述的驱动方法，其中，所述预定区域为液晶面板的整个区域。
  4. 根据权利要求2所述的驱动方法，其中，所述预定区域为液晶面板的多个区域中的一个区域。
  5. 根据权利要求4所述的驱动方法，其中，对于液晶面板的多个区域中的另一个区域的子像素，以连续的n个帧为周期进行驱动，n为大于4的整数，
    其中，所述n个帧中的连续的第二预定数量的帧的子像素驱动电压的极性相同，所述n个帧中除所述第二预定数量的帧之外的每个帧的子像素驱动电压的极性与相邻帧的子像素驱动电压的极性相反。
  6. 根据权利要求5所述的驱动方法，其中，
    在第二预定数量为偶数的情况下，n为大于所述第二预定数量的奇数；
    在第二预定数量为奇数的情况下，n为大于所述第二预定数量的偶数。
  7. 根据权利要求6所述的驱动方法，其中，在m＝n时，m个连续帧中的第i帧的子像素驱动电压的极性与n个连续帧中的第i帧的子像素驱动电压的极性相反，其中，i∈[1，m]。
  8. 根据权利要求7所述的驱动方法，其中，在第一预定数量为2，m＝5，第二预定数量为2，n＝5时，对所述一个区域驱动的5个连续帧的子像素驱动电 压的极性分别为正、负、正、正、负，对所述另一个区域驱动的5个连续帧的子像素驱动电压的极性分别为负、正、负、负、正，
    或者，对所述一个区域驱动的5个连续帧的子像素驱动电压的极性分别为负、正、负、负、正，对所述另一个区域驱动的5个连续帧的子像素驱动电压的极性分别为正、负、正、正、负。
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