CN106683629A - 液晶面板的驱动装置及驱动方法 - Google Patents

液晶面板的驱动装置及驱动方法 Download PDF

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CN106683629A
CN106683629A CN201611238873.1A CN201611238873A CN106683629A CN 106683629 A CN106683629 A CN 106683629A CN 201611238873 A CN201611238873 A CN 201611238873A CN 106683629 A CN106683629 A CN 106683629A
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CN106683629B (zh
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卢宇程
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Wuhan China Star Optoelectronics Technology Co Ltd
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3614Control of polarity reversal in general
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3648Control of matrices with row and column drivers using an active matrix
    • G09G3/3655Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3674Details of drivers for scan electrodes
    • G09G3/3677Details of drivers for scan electrodes suitable for active matrices only
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3685Details of drivers for data electrodes
    • G09G3/3688Details of drivers for data electrodes suitable for active matrices only
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/02Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264Details of driving circuits
    • G09G2310/0291Details of output amplifiers or buffers arranged for use in a driving circuit
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0209Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
    • G09G2320/0214Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display with crosstalk due to leakage current of pixel switch in active matrix panels
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0233Improving the luminance or brightness uniformity across the screen

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Abstract

本发明提供了一种液晶面板的驱动装置,其包括:扫描驱动器,用于向液晶面板中阵列排布的像素逐行施加扫描电压;数据驱动器,用于接收图像数据和极性反转信号,且用于根据图像数据获取将提供给每列像素的原始数据电压,且用于根据极性反转信号确定是否按照扫描方向对将提供给每列像素的原始数据电压进行电压行增益,且用于将原始数据电压或增益后的数据电压提供给每列像素。本发明还提供了一种液晶面板的驱动方法。当极性反转信号由负极性反转为正极性时,将施加到数据线的数据电压按照扫描方向逐渐递增,这样当极性反转信号由正极性反转为负极性时,由于漏电严重的像素之前被充入的电荷量较大,所以能够明显降低液晶面板显示画面亮度不均的现象。

Description

液晶面板的驱动装置及驱动方法
技术领域
本发明属于显示技术领域,具体地讲,涉及一种液晶面板的驱动装置及驱动方法。
背景技术
随着光电与半导体技术的演进,也带动了平板显示器(Flat Panel Display)的蓬勃发展,而在诸多平板显示器中,液晶显示器(Liquid Crystal Display,简称LCD)因具有高空间利用效率、低消耗功率、无辐射以及低电磁干扰等诸多优越特性,已被应用于生产生活的各个方面。
液晶显示器通常由液晶面板、背光模块以及其它必须的组件构成。液晶面板中包括阵列排布的多个像素,每个像素包括薄膜晶体管(TFT)以及与TFT连接的液晶电容器(如有必要,还可以包括存储电容器)。通过TFT的开关控制,为液晶电容器充入数据电压,以实现不同画面的显示。
由于液晶长时间在相同方向的电场驱动下,容易产生极化,最终导致无法正常的在电场中偏转,因此需要对液晶电容器充入的数据电压进行极性反转,以表面液晶出现极化现象。然而,当数据电压由正极性反转为负极性时,TFT的源极与栅极的压差减小,这将导致TFT的漏电流增大,从而使得液晶电容器的电荷通过数据线放电,导致显示亮度降低。并且由于液晶面板中的扫描方式为逐行扫描,故漏电时间按照扫描方向逐渐递增,导致显示亮度逐渐降低,最终导致液晶面板显示画面亮度不均。
发明内容
为了解决上述现有技术存在的问题,本发明的目的在于提供一种用于液晶面板的驱动装置,其包括:扫描驱动器,用于向液晶面板中阵列排布的像素逐行施加扫描电压;数据驱动器,用于接收图像数据和极性反转信号,且用于根据所述图像数据获取将提供给每列像素的原始数据电压,且用于根据所述极性反转信号确定是否按照扫描方向对将提供给每列像素的原始数据电压进行电压行增益,且用于将原始数据电压或增益后的数据电压提供给每列像素。
进一步地,所述数据驱动器包括:接收模块,用于接收图像数据和极性反转信号;原始数据电压产生模块,用于根据所述图像数据产生将提供给每列像素的原始数据电压;增益模块,用于根据所述极性反转信号确定是否按照扫描方向对将提供给每列像素的原始数据电压进行电压行增益;输出模块,用于将原始数据电压或增益后的数据电压提供给每列像素。
进一步地,若极性反转信号由负极性反转为正极性,则所述增益模块确定按照扫描方向对将提供给每列像素的原始数据电压进行电压行增益。
进一步地,所述增益模块进一步用于利用下面的式子1对将提供给每列像素的原始数据电压进行电压行增益,
[式子1]VO=Vi*(Y*U+X)pn
其中,Vi表示原始数据电压,VO表示增益后的数据电压,(Y*U+X)pn表示增益系数,其按照扫描方向逐渐增大,U、X和n作为参考系数,分别为一定值,Y表示一调节系数;
其中,若极性反转信号由负极性反转为正极性,则所述增益模块将p设定为1;若极性反转信号由正极性反转为负极性,则所述增益模块将p设定为0。
进一步地,所述阵列排布的像素被划分为多个像素组,每个像素组包括至少一行像素,所述像素组的组数按照扫描方向逐渐增大,Y表示每个像素组的组数。
本发明的另一目的还在于提供一种液晶面板的驱动方法,其包括:向液晶面板中阵列排布的像素逐行施加扫描电压;接收图像数据和极性反转信号,并根据所述图像数据获取将提供给每列像素的原始数据电压;根据所述极性反转信号确定是否按照扫描方向对将提供给每列像素的原始数据电压进行电压行增益;将原始数据电压或增益后的数据电压提供给每列像素。
进一步地,若极性反转信号由负极性反转为正极性,则确定按照扫描方向对将提供给每列像素的原始数据电压进行电压行增益。
进一步地,利用下面的式子1对将提供给每列像素的原始数据电压进行电压行增益,
[式子1]VO=Vi*(Y*U+X)pn
其中,Vi表示原始数据电压;VO表示增益后的数据电压;(Y*U+X)pn表示增益系数,其按照扫描方向逐渐增大,U、X和n作为参考系数,分别为一定值,Y表示一调节系数。
进一步地,若极性反转信号由负极性反转为正极性,则p=1;若极性反转信号由正极性反转为负极性,则p=0。
进一步地,将阵列排布的像素划分为多个像素组,所述像素组的组数按照扫描方向逐渐增大,每个像素组按照扫描方向至少包括一行像素,Y表示每个像素组所在的组数。
本发明的有益效果:在本发明中,当极性反转信号由负极性反转为正极性时,将施加到数据线的数据电压按照扫描方向逐渐递增,这样当极性反转信号由正极性反转为负极性时,由于漏电严重的像素之前被充入的电荷量较大,所以能够明显降低液晶面板显示画面亮度不均的现象。
附图说明
通过结合附图进行的以下描述,本发明的实施例的上述和其它方面、特点和优点将变得更加清楚,附图中:
图1是根据本发明的实施例的显示装置的架构图;
图2是根据本发明的实施例的数据驱动器的模式图;
图3是根据本发明的实施例的液晶面板的驱动方法的流程图。
具体实施方式
以下,将参照附图来详细描述本发明的实施例。然而,可以以许多不同的形式来实施本发明,并且本发明不应该被解释为限制于这里阐述的具体实施例。相反,提供这些实施例是为了解释本发明的原理及其实际应用,从而使本领域的其他技术人员能够理解本发明的各种实施例和适合于特定预期应用的各种修改。
图1是根据本发明的实施例的显示装置的架构图。
参照图1,根据本发明的实施例的显示装置包括:显示面板组件100和信号控制器200。
显示面板组件100包括:阵列排布的多个像素PX、N条扫描线G1至GN、M条数据线D1至DM、扫描驱动器110、数据驱动器120。
每个像素PX连接到对应的扫描线Gi和对应的数据线Dj,其中1≤i≤N,1≤j≤M。每个像素PX可以包括:开关器件(未示出),连接到对应的扫描线Gi和对应的数据线Dj;液晶电容器(未示出),连接到该开关器件。在本实施例中,该开关器件可优选为薄膜晶体管,但本发明并不限制于此。如有必要,还可以包括存储电容器,其与液晶电容器并联。
扫描驱动器110连接到扫描线G1至GN,并向扫描线G1至GN逐行施加扫描电压,该扫描电压通常由高电平信号和低电平信号组合而成。
数据驱动器120连接到数据线D1至DM,并向数据线D1至DM施加数据电压,具体如何施加将在下面描述。
在本实施例中,扫描驱动器110和数据驱动器120被集成而包括于液晶面板组件100中。可替换地,扫描驱动器110和数据驱动器120可以被安装在柔性印刷薄膜(未示出)上,然后附接到液晶面板组件100(此时液晶面板组件100不包含扫描驱动器110和数据驱动器120)。
信号控制器200控制扫描驱动器110和数据驱动器120的操作。
信号控制器200能够产生扫描控制信号CONT1、数据控制信号CONT2和图像数据DAT。信号控制器200将扫描控制信号CONT1传送到扫描驱动器110,并将数据控制信号CONT2和图像数据DAT传送到数据驱动器120。在本实施例中,数据控制信号CONT2包括极性反转信号,用于反转提供给数据线Dj的数据电压的极性。
数据驱动器120响应于数据控制信号CONT2和图像数据DAT产生数据电压,并将数据电压施加到数据线D1至DM
扫描驱动器110响应于扫描控制信号CONT1逐行向扫描线G1至GN施加为高电平信号的扫描电压而逐行导通连接到扫描线G1至GN的开关器件。然后,施加到数据线D1至DM的数据电压通过导通的开关器件而被传送到每个像素PX。
诚如背景技术中描述,当施加到数据线D1至DM的数据电压由正极性反转为负极性时,开关器件的源极与栅极的压差减小,导致开关器件的漏电流增大,从而使得液晶电容器的电荷通过其连接的对应的数据线Dj放电,导致显示亮度降低,并且由于漏电时间按照扫描方向逐渐递增,导致显示亮度逐渐降低,最终导致液晶面板显示画面亮度不均。
本实施例为了解决上述问题,当极性反转信号由负极性反转为正极性时,将施加到数据线D1至DM的数据电压按照扫描方向逐渐递增,这样当极性反转信号由正极性反转为负极性时,由于漏电严重的像素PX之前被充入的电荷量较大,所以能够明显减弱液晶面板显示画面亮度不均的现象。以下将进行详细的描述。
图2是根据本发明的实施例的数据驱动器的模式图。
参照图2,根据本发明的实施例的数据驱动器120包括:接收模块121、原始数据电压产生模块122、增益模块123、输出模块124。根据本发明的其他实施方式,数据驱动器120可包括其他和/或不同的模块。类似的,上述模块的功能可合并为单个组件。
接收模块121用于接收图像数据DAT和极性反转信号(其包括于数据控制信号CONT2中)。信号控制器200将数据控制信号CONT2和图像数据DAT传送到数据驱动器120的接收模块121,接收模块121接收数据控制信号CONT2和图像数据DAT,并将接收的图像数据DAT传送至原始数据电压产生模块122,且将数据控制信号CONT2传送至增益模块123。
原始数据电压产生模块122接收图像数据DAT。原始数据电压产生模块122根据图像数据DAT从由灰度电压产生装置(未示出)提供的多个灰度电压中选择与图像数据DAT对应的灰度电压而将图像数据DAT转换为将提供给数据线Dj(即每列像素PX)的原始数据电压。原始数据电压产生模块122将其产生的原始数据电压传送至增益模块123。
增益模块123接收数据控制信号CONT2和原始数据电压。增益模块123根据数据控制信号CONT2中的极性反转信号确定是否按照扫描方向对原始数据电压进行电压行增益。
若极性反转信号由负极性反转为正极性,则增益模块123确定按照扫描方向对原始数据电压进行电压行增益,并将增益后的数据电压传送至输出模块124。若极性反转信号由负极性反转为正极性,则增益模块123确定不对原始数据电压进行电压行增益,并将原始数据电压传送至输出模块124。
优选地,增益模块123利用下面的式子1对原始数据电压进行电压行增益。
[式子1]VO=Vi*(Y*U+X)pn
其中,Vi表示原始数据电压,VO表示增益后的数据电压,(Y*U+X)pn表示增益系数,其按照扫描方向逐渐增大,U、X和n作为参考系数,分别为一定值,Y表示一调节系数。这里,优选地,Y可以表示此时被充入数据电压的像素的所在行数,但本发明并不限制于此。作为本发明的其他实施方式,可以以行为单位将阵列排布的像素划分为多个像素组,像素组的组数按照扫描方向逐渐增大,每个像素组包括至少两行像素,那么Y表示每个像素组的组数。
在本实施例中,优选地,所述开关器件为NMOS型薄膜晶体管。这样,若极性反转信号由负极性反转为正极性,则增益模块123将p设定为1;若极性反转信号由正极性反转为负极性,则增益模块123将p设定为0。
作为本发明的另一实施例,所述开关器件可以为PMOS型薄膜晶体管。这样,若极性反转信号由负极性反转为正极性,则增益模块123将p设定为0;若极性反转信号由正极性反转为负极性,则增益模块123将p设定为1。
应当说明的是,在本发明中,所述开关器件还可以是其他类型的薄膜晶体管,诸如CMOS型薄膜晶体管,其中电压行增益发生的条件可根据所述开关器件的设计类型而作合适的调整。
输出模块124接收原始数据电压或增益后的数据电压。输出模块124将原始数据电压或增益后的数据电压输出至数据线D1至DM
图3是根据本发明的实施例的液晶面板的驱动方法的流程图。
参照图1至图3,根据本发明的实施例的液晶面板的驱动方法包括:
步骤S310,扫描驱动器110响应于扫描控制信号CONT1逐行向扫描线G1至GN施加为高电平信号的扫描电压而逐行导通连接到扫描线G1至GN的开关器件,从而对扫描线G1至GN逐行施加扫描电压。
步骤S320,接收模块121接收图像数据DAT和极性反转信号(其包括于数据控制信号CONT2中),并且原始数据电压产生模块122根据图像数据DAT从由灰度电压产生装置(未示出)提供的多个灰度电压中选择与图像数据DAT对应的灰度电压而将图像数据DAT转换为将提供给数据线Dj(即每列像素PX)的原始数据电压。
步骤S330,增益模块123根据数据控制信号CONT2中的极性反转信号确定是否按照扫描方向对原始数据电压进行电压行增益。
具体地,若极性反转信号由负极性反转为正极性,则增益模块123确定按照扫描方向对原始数据电压进行电压行增益,并将增益后的数据电压传送至输出模块124。若极性反转信号由负极性反转为正极性,则增益模块123确定不对原始数据电压进行电压行增益,并将原始数据电压传送至输出模块124。
优选地,在步骤S330中,增益模块123利用上面的式子1对原始数据电压进行电压行增益。
此外,若极性反转信号由负极性反转为正极性,则增益模块123将上面的式子1中的p设定为1;若极性反转信号由正极性反转为负极性,则增益模块123将将上面的式子1中的p设定为0。
步骤S340,输出模块124将原始数据电压或增益后的数据电压输出至数据线D1至DM
此外,根据本发明的上述方法可以被实现为计算机可读记录介质中的计算机代码。本领域技术人员可以根据对上述方法的描述来实现所述计算机代码。当所述计算机代码在计算机中被执行时实现本发明的上述方法。
此外,根据本发明的实施例的显示装置中的各个器件或模块可被实现为硬件组件。本领域技术人员根据限定的各个器件或模块所执行的处理,可以使用例如现场可编程门阵列(FPGA)或专用集成电路(ASIC)来实现各个器件或模块。
综上所述,根据本发明的实施例,当极性反转信号由负极性反转为正极性时,将施加到数据线的数据电压按照扫描方向逐渐递增,这样当极性反转信号由正极性反转为负极性时,由于漏电严重的像素之前被充入的电荷量较大,所以能够明显降低液晶面板显示画面亮度不均的现象。
虽然已经参照特定实施例示出并描述了本发明,但是本领域的技术人员将理解:在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下,可在此进行形式和细节上的各种变化。

Claims (10)

1.一种液晶面板的驱动装置,其特征在于,包括:
扫描驱动器,用于向液晶面板中阵列排布的像素逐行施加扫描电压;
数据驱动器,用于接收图像数据和极性反转信号,且用于根据所述图像数据获取将提供给每列像素的原始数据电压,且用于根据所述极性反转信号确定是否按照扫描方向对将提供给每列像素的原始数据电压进行电压行增益,且用于将原始数据电压或增益后的数据电压提供给每列像素。
2.根据权利要求1所述的驱动装置,其特征在于,所述数据驱动器包括:
接收模块,用于接收图像数据和极性反转信号;
原始数据电压产生模块,用于根据所述图像数据产生将提供给每列像素的原始数据电压;
增益模块,用于根据所述极性反转信号确定是否按照扫描方向对将提供给每列像素的原始数据电压进行电压行增益;
输出模块,用于将原始数据电压或增益后的数据电压提供给每列像素。
3.根据权利要求2所述的驱动装置,其特征在于,若极性反转信号由负极性反转为正极性,则所述增益模块确定按照扫描方向对将提供给每列像素的原始数据电压进行电压行增益。
4.根据权利要求2或3所述的驱动装置,其特征在于,所述增益模块进一步用于利用下面的式子1对将提供给每列像素的原始数据电压进行电压行增益,
[式子1] VO=Vi*(Y*U+X)pn
其中,Vi表示原始数据电压,VO表示增益后的数据电压,(Y*U+X)pn表示增益系数,其按照扫描方向逐渐增大,U、X和n作为参考系数,分别为一定值,Y表示一调节系数;
其中,若极性反转信号由负极性反转为正极性,则所述增益模块将p设定为1;若极性反转信号由正极性反转为负极性,则所述增益模块将p设定为0。
5.根据权利要求4所述的驱动装置,其特征在于,所述阵列排布的像素被划分为多个像素组,每个像素组包括至少一行像素,所述像素组的组数按照扫描方向逐渐增大,Y表示每个像素组的组数。
6.一种液晶面板的驱动方法,其特征在于,包括:
向液晶面板中阵列排布的像素逐行施加扫描电压;
接收图像数据和极性反转信号,并根据所述图像数据获取将提供给每列像素的原始数据电压;
根据所述极性反转信号确定是否按照扫描方向对将提供给每列像素的原始数据电压进行电压行增益;
将原始数据电压或增益后的数据电压提供给每列像素。
7.根据权利要求6所述的驱动方法,其特征在于,若极性反转信号由负极性反转为正极性,则确定按照扫描方向对将提供给每列像素的原始数据电压进行电压行增益。
8.根据权利要求6或7所述的驱动方法,其特征在于,利用下面的式子1对将提供给每列像素的原始数据电压进行电压行增益,
[式子1] VO=Vi*(Y*U+X)pn
其中,Vi表示原始数据电压;VO表示增益后的数据电压;(Y*U+X)pn表示增益系数,其按照扫描方向逐渐增大,U、X和n作为参考系数,分别为一定值,Y表示一调节系数。
9.根据权利要求8所述的驱动方法,其特征在于,若极性反转信号由负极性反转为正极性,则p=1;若极性反转信号由正极性反转为负极性,则p=0。
10.根据权利要求8所述的驱动方法,其特征在于,将阵列排布的像素划分为多个像素组,所述像素组的组数按照扫描方向逐渐增大,每个像素组按照扫描方向至少包括一行像素,Y表示每个像素组所在的组数。
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