CN104280960B - 液晶面板及其驱动方法、液晶显示器 - Google Patents

液晶面板及其驱动方法、液晶显示器 Download PDF

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CN104280960B
CN104280960B CN201410563983.XA CN201410563983A CN104280960B CN 104280960 B CN104280960 B CN 104280960B CN 201410563983 A CN201410563983 A CN 201410563983A CN 104280960 B CN104280960 B CN 104280960B
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liquid crystal
crystal panel
data
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CN104280960A (zh
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陈黎暄
康志聪
郑巍巍
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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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    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • 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
    • G09G3/2003—Display of colours
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    • 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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
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    • 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
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    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • 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
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    • 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
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    • G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/52—RGB geometrical arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • 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
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
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    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
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    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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Abstract

本发明公开了一种液晶面板，其中，包括：设置有像素单元阵列的显示区域，所述像素单元至少包括蓝色子像素；多条扫描线，用于向所述像素单元提供扫描信号；多条数据线，用于向所述像素单元提供数据信号；其中，每两个相邻列的像素单元中的蓝色子像素连接到同一条数据线，该条数据线向同一行的该两个相邻列的蓝色子像素提供相同的数据信号。本发明还公开了如上所述液晶面板的驱动方法以及包含该液晶面板的液晶显示器。本发明提供的液晶面板及其驱动方法减少了数据线的数量，减小了液晶面板的功耗，降低了液晶面板的设计以及制作工艺的难度，节省了制造成本。

Description

液晶面板及其驱动方法、液晶显示器
技术领域
本发明涉及液晶显示器技术领域,尤其涉及一种液晶面板及其驱动方法，还涉及包含该液晶面板的液晶显示器。
背景技术
液晶显示器(Liquid Crystal Display，LCD)，为平面超薄的显示设备，它由一定数量的彩色或黑白像素组成，放置于光源或者反射面前方。液晶显示器功耗很低，并且具有高画质、体积小、重量轻的特点，因此倍受大家青睐，成为显示器的主流。目前液晶显示器是以薄膜晶体管(Thin Film Transistor，TFT)液晶显示器为主，液晶面板是液晶显示器的主要组件。
液晶面板一般包含有像素单元阵列，每一像素单元包括红色子像素、绿色子像素和蓝色子像素，液晶面板中还包含有纵横交错的多条数据线和多条扫描线。在传统的液晶面板中，同一行的所有像素单元的子像素均连接到同一条扫描线中，由该条扫描线向该行的所有子像素提供扫描信号；同一列的所有像素单元的红色子像素均连接到同一条数据线中，由该条数据线向该列的所有红色子像素提供数据信号；同一列的所有像素单元的绿色子像素均连接到同一条数据线中，由该条数据线向该列的所有绿色子像素提供数据信号；同一列的所有像素单元的蓝色子像素均连接到同一条数据线中，由该条数据线向该列的所有蓝色子像素提供数据信号。由于每一列的每一类型的子像素均连接有数据线，数据线的数量多，增加了工艺难度，增大了液晶面板的成本。
发明内容
鉴于现有技术存在的不足，本发明目的之一是提供了一种液晶面板，该液晶面板减少了数据线的数量，减小了液晶面板的功耗，降低了液晶面板的设计以及制作工艺的难度，节省了制造成本。
为了实现上述目的，本发明采用了如下的技术方案：
一种液晶面板，其中，包括：
设置有像素单元阵列的显示区域，所述像素单元至少包括蓝色子像素；
多条扫描线，用于向所述像素单元提供扫描信号；
多条数据线，用于向所述像素单元提供数据信号；其中，每两个相邻列的像素单元中的蓝色子像素连接到同一条数据线，该条数据线向同一行的该两个相邻列的蓝色子像素提供相同的数据信号。
进一步地，所述相同的数据信号使得同一行的两个相邻列的蓝色子像素具有相同的亮度值。
进一步地，所述像素单元还包括红色子像素和绿色子像素，每一行像素单元的子像素连接到同一条扫描线，每一列像素单元中的红色子像素连接到同一条数据线，每一列像素单元中的绿色子像素连接到同一条数据线。
进一步地，该液晶面板还包括栅控制器和源控制器，所述栅控制器通过多条扫描线向所述像素单元提供扫描信号，所述源控制器通过多条数据线向所述像素单元提供数据信号。
如上所述的液晶面板的驱动方法，其中，对所述液晶面板进行驱动，使其根据重新设定的蓝色子像素的数据参数进行画面显示，具体包括：
获取所述液晶面板蓝色子像素的全灰阶的亮度曲线；
若所需显示的画面中同一行的第m和第m+1个蓝色子像素的亮度值分别为LvBm和LvBm+1，则按照公式：重新设定该两个蓝色子像素的亮度值分别为LvB；其中m＝1、3、5、7…；
根据前述获取的亮度曲线，确定LvB对应的灰阶值，重新制定该液晶面板关于蓝色子像素的显示查找表LUT；
根据所述显示查找表LUT对所述液晶面板进行驱动，其中，对同一行的每两个相邻列的蓝色子像素输入相同的数据信号。
进一步地，所述像素单元还包括红色子像素和绿色子像素，在重新设定的蓝色子像素的数据参数时，红色子像素和绿色子像素的数据信号保持不变。
进一步地，该液晶面板还包括栅控制器和源控制器，所述栅控制器通过多条扫描线向所述像素单元提供扫描信号，所述源控制器通过多条数据线向所述像素单元提供数据信号。
本发明的另一方面是提供一种液晶显示器，包括液晶面板及背光模组，所述液晶面板与所述背光模组相对设置，所述背光模组提供显示光源给所述液晶面板，以使所述液晶面板显示影像，其中，所述液晶面板采用如上所述的液晶面板。
进一步地，所述的液晶面板采用如前所述的驱动方法进行驱动。
相比于现有技术，本发明提供的液晶面板中，每两个相邻列的像素单元中的蓝色子像素连接到同一条数据线，使得连接到整个液晶面板的蓝色子像素的数据线用量减少了一半。在改变面板结构的同时，通过改变驱动方式，使得同一行的像素单元中，共用一条数据线的两个蓝色子像素具有相同的亮度参数，以使液晶面板保持良好的显示效果。该液晶面板及其驱动方法减少了数据线的数量，减小了液晶面板的功耗，降低了液晶面板的设计以及制作工艺的难度，节省了制造成本。
附图说明
图1是本发明实施例提供的液晶显示器的结构示意图。
图2是本发明实施例提供的液晶面板的结构示意图。
具体实施方式
为了使本发明的目的、技术方案以及优点更加清楚明白，下面将结合附图用实施例对本发明做进一步说明。
如图1所示，本实施例提供的液晶显示器，包括液晶面板100及背光模组200，所述液晶面板100与所述背光模组200相对设置，所述背光模组200提供显示光源给所述液晶面板100，以使所述液晶面板100显示影像。
如图2所示，本实施例中的液晶面板100包括设置有像素单元11阵列(附图中只是示例性的示出了其中的一部分)的显示区域1、多条扫描线2以及多条数据线3，每一像素单元11包括红色子像素R、绿色子像素G和蓝色子像素。其中，同一行的所有像素单元11的子像素R、G、B均连接到同一条扫描线2中，由该条扫描线2向该行的所有子像素R、G、B提供扫描信号；同一列的所有像素单元11的红色子像素R均连接到同一条数据线31中，由该条数据线31向该列的所有红色子像素R提供数据信号；同一列的所有像素单元11的绿色子像素G均连接到同一条数据线32中，由该条数据线32向该列的所有绿色子像素G提供数据信号；每两个相邻列(第m列和第m+1列，m＝1、3、5、7…)的像素单元11中的蓝色子像素R连接到同一条数据线33，该条数据线33向同一行的该两个相邻列的蓝色子像素R提供相同的数据信号。
进一步地，如图2所示，该液晶面板100还包括栅控制器4和源控制器5，所述栅控制器4通过扫描线2向像素单元11提供扫描信号，源控制器5通过数据线3向像素单元11提供数据信号。
结合如上对液晶面板结构的改进，本实施例还提供了该液晶面板的驱动方法，使液晶面板根据重新设定的蓝色子像素的数据参数进行画面显示。该方法具体包括：
首先，获取所述液晶面板蓝色子像素的全灰阶(0-255灰阶)的亮度曲线。即测量每一灰阶值对应实际亮度值LvB0。
然后，对于一帧画面，若所需显示的画面中同一行的第m和第m+1个蓝色子像素的亮度值分别为LvBm和LvBm+1，则按照公式：重新设定该两个蓝色子像素的亮度值分别为LvB；其中m＝1、3、5、7…。
进一步地，根据前述获取的亮度曲线，确定LvB对应的灰阶值，重新制定该液晶面板关于蓝色子像素的显示查找表LUT(Look-Up-Table)。
根据所述显示查找表LUT对所述液晶面板进行驱动，其中，对同一行的每两个相邻列的蓝色子像素输入相同的数据信号。
例如，若所需显示的画面中同一行的第1和第2个蓝色子像素需要输入的灰阶值为B1和B2，对应的亮度值分别为LvB1和LvB2，则按照公式：重新设定前述第1和第2个蓝色子像素的亮度值分别为LvB；然后再根据亮度曲线确定亮度值LvB对应的灰阶值B，则原来需要输入到第1和第2个蓝色子像素的灰阶值B1和B2均替换为B。按照此方式，整个液晶面板的蓝色子像素均重新计算其灰阶值，建立重新计算后的显示查找表LUT，再根据该显示查找表LUT向像素单元提供数据信号以显示画面。
其中，在重新设定的蓝色子像素的数据参数时，红色子像素和绿色子像素的数据信号保持不变。
综上所述，相比于现有技术，本实施例提供的液晶面板中，每两个相邻列的像素单元中的蓝色子像素连接到同一条数据线，使得连接到整个液晶面板的蓝色子像素的数据线用量减少了一半。在改变面板结构的同时，通过改变驱动方式，使得同一行的像素单元中，共用一条数据线的两个蓝色子像素具有相同的亮度参数，以使液晶面板保持良好的显示效果。该液晶面板及其驱动方法减少了数据线的数量，减小了液晶面板的功耗，降低了液晶面板的设计以及制作工艺的难度，节省了制造成本。
以上所述仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (8)

1.一种液晶面板，其特征在于，包括：
设置有像素单元阵列的显示区域，所述像素单元包括蓝色子像素、红色子像素和绿色子像素；
多条扫描线，用于向所述像素单元提供扫描信号，每一行像素单元的全部子像素连接到同一条扫描线；
多条数据线，用于向所述像素单元提供数据信号；其中，每一列像素单元中的红色子像素连接到同一条数据线，每一列像素单元中的绿色子像素连接到同一条数据线；每两个相邻列的像素单元中的蓝色子像素连接到同一条数据线，该条数据线向同一行的该两个相邻列像素单元的蓝色子像素提供相同的数据信号。
2.根据权利要求1所述的液晶面板，其特征在于，所述相同的数据信号使得同一行的两个相邻列像素单元的蓝色子像素具有相同的亮度值。
3.根据权利要求1所述的液晶面板，其特征在于，该液晶面板还包括栅控制器和源控制器，所述栅控制器通过多条扫描线向所述像素单元提供扫描信号，所述源控制器通过多条数据线向所述像素单元提供数据信号。
4.权利要求1所述的液晶面板的驱动方法，其特征在于，对所述液晶面板进行驱动，使其根据重新设定的蓝色子像素的数据参数进行画面显示，具体包括：
获取所述液晶面板蓝色子像素的全灰阶的亮度曲线；
若所需显示的画面中同一行的第m和第m+1个蓝色子像素的亮度值分别为LvBm和LvBm+1，则按照公式：重新设定该两个蓝色子像素的亮度值分别为LvB；其中m＝1、3、5、7…；
根据前述获取的亮度曲线，确定LvB对应的灰阶值，重新制定该液晶面板关于蓝色子像素的显示查找表LUT；
根据所述显示查找表LUT对所述液晶面板进行驱动，其中，对同一行的每两个相邻列像素单元的蓝色子像素输入相同的数据信号。
5.根据权利要求4所述的液晶面板的驱动方法，其特征在于，所述像素单元还包括红色子像素和绿色子像素，在重新设定的蓝色子像素的数据参数时，红色子像素和绿色子像素的数据信号保持不变。
6.根据权利要求4所述的液晶面板的驱动方法，其特征在于，该液晶面板还包括栅控制器和源控制器，所述栅控制器通过多条扫描线向所述像素单元提供扫描信号，所述源控制器通过多条数据线向所述像素单元提供数据信号。
7.一种液晶显示器，包括液晶面板及背光模组，所述液晶面板与所述背光模组相对设置，所述背光模组提供显示光源给所述液晶面板，以使所述液晶面板显示影像，其特征在于，所述液晶面板采用如权利要求1-3任一所述的液晶面板。
8.根据权利要求7所述的液晶显示器，其特征在于，所述的液晶面板采用如权利要求4-6任一所述的驱动方法进行驱动。
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