WO2018232808A1 - 液晶面板及其驱动显示方法 - Google Patents

液晶面板及其驱动显示方法 Download PDF

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WO2018232808A1
WO2018232808A1 PCT/CN2017/093422 CN2017093422W WO2018232808A1 WO 2018232808 A1 WO2018232808 A1 WO 2018232808A1 CN 2017093422 W CN2017093422 W CN 2017093422W WO 2018232808 A1 WO2018232808 A1 WO 2018232808A1
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low potential
liquid crystal
potential signal
crystal panel
duration
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PCT/CN2017/093422
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English (en)
French (fr)
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陈帅
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深圳市华星光电技术有限公司
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Priority to US15/737,568 priority Critical patent/US10460693B2/en
Publication of WO2018232808A1 publication Critical patent/WO2018232808A1/zh

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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
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • 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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal 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
    • G09G3/34—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

Definitions

  • the invention belongs to the technical field of liquid crystal display, and in particular relates to a liquid crystal panel and a driving display method thereof.
  • LCDs liquid crystal displays
  • the liquid crystal display usually includes a liquid crystal panel and a backlight module which are oppositely arranged. Since the liquid crystal panel cannot emit light, the backlight module is required to provide uniform display light to the liquid crystal panel to display the image on the liquid crystal panel.
  • the display modes of the common liquid crystal panel mainly include a TN (twisted nematic) mode, a VA (vertical alignment) mode, and an IPS (in-plane switching) mode.
  • the VA display mode refers to a display mode in which liquid crystal molecules are vertically aligned with the substrate.
  • the liquid crystal panel of the VA display mode has the advantages of high contrast and high transmittance of the screen display, but the viewing angle is poor.
  • the long axis of the liquid crystal molecules in the pixel is perpendicular to the filter in an uncharged state, and each pixel is divided into a plurality of domain regions (multi-domain). In the electrical state, the liquid crystal molecules in each domain region are deflected in respective directions.
  • the orientation of the liquid crystal molecules in the same pixel is divided into a plurality of directions, thereby compensating the viewing angles of the respective angles, thereby realizing the respective viewing angle directions.
  • the uniform display is effective to improve the viewing angle characteristics in the gray scale display state of different viewing angles.
  • Eight-domain division is a commonly used division of pixel domain regions, but in the eight-domain pixels, due to the use of a larger number of thin film transistors and responsive capacitance, the aperture ratio of the pixel is seriously affected, and In the driving of the eight-domain pixel structure, in order to compensate for the color shift of the large viewing angle, the brightness of some domain regions is lowered, which will cause the transmittance of the liquid crystal panel to decrease.
  • an object of the present invention is to provide a liquid crystal panel that realizes color shift compensation of a large viewing angle display with a four-domain pixel structure and a driving display method thereof.
  • a liquid crystal panel comprising N scan lines, M data lines, and N ⁇ M pixels arranged in an array, N and M being positive integers;
  • the scan lines extend in a row direction, the data lines extend in a column direction, the scan lines and the data lines cross each other and are insulated, and the pixels are disposed at intersections of corresponding scan lines and corresponding data lines,
  • the pixels are respectively connected to the corresponding scan lines and the corresponding data lines; when the liquid crystal panel performs driving display, the n scan lines adjacent to each other simultaneously receive the high potential signal, and during the duration of the high potential signal, M strips
  • the data line simultaneously receives the data signal;
  • the n scan lines simultaneously receive the low potential signal for the duration of the first low potential signal after the duration of the high potential signal, the second low after the duration of the first low potential signal
  • the n scan lines simultaneously receive the low potential signal having the lowest voltage for the duration of the potential signal, and during the duration of the first low potential signal and the duration of the second low potential signal
  • At least one of the n scan lines receives a low potential signal having a lowest voltage during the duration of the first low potential signal, the n The voltages of the low potential signals received by the remaining scan lines in the scan lines are all greater than the lowest voltage.
  • the scan lines that receive the low potential signal having the lowest voltage are not adjacent to each other.
  • the voltages of the low potential signals received by the remaining scan lines of the n scan lines are different.
  • N is optionally an integer multiple of n.
  • a driving display method of a liquid crystal panel comprising: N scanning lines, M data lines, and N ⁇ M pixels arranged in an array, N and M A positive integer
  • the driving display method includes: simultaneously providing a high potential signal to the n scan lines adjacent to each other, and simultaneously providing the data signals to the M data lines during the duration of the high potential signal; 2 ⁇ n ⁇ N, and n is a positive integer; simultaneously providing a low potential signal to the n scan lines for the duration of the first low potential signal after the duration of the high potential signal, and The first low-potential signal simultaneously supplies the common voltage signal to the M data lines; the low-potential having the lowest voltage is simultaneously supplied to the n scan lines for the duration of the second low-potential signal after the duration of the first low-potential signal And transmitting a common voltage signal to the M data lines for the duration of the second low potential signal.
  • At least one of the n scan lines receives a low potential signal having a lowest voltage during the first low potential signal duration, The voltages of the low potential signals received by the remaining scan lines of the n scan lines are all greater than the minimum voltage.
  • the scan lines that receive the low potential signal having the lowest voltage are not adjacent to each other.
  • the voltages of the low potential signals received by the remaining ones of the n scan lines are different.
  • N is optionally an integer multiple of n.
  • the invention has the beneficial effects that the liquid crystal panel with the VA display mode of the present invention has a four-domain pixel structure, and adjusts the pixel voltage of the pixel to affect the deflection angle of the liquid crystal molecules in the pixel, thereby realizing a large viewing angle.
  • FIG. 1 is a schematic structural view of a liquid crystal panel according to an embodiment of the present invention.
  • FIG. 2 is a timing diagram of signals when a liquid crystal panel performs driving display according to an embodiment of the present invention
  • FIG. 3 is a flow chart of a method of driving display of a liquid crystal panel according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural view of a liquid crystal panel according to an embodiment of the present invention.
  • a liquid crystal panel according to an embodiment of the present invention includes: N scanning lines 100, M data lines 200, N x M pixels 300 arranged in an array, a scan driver 400, and a data driver 500. It should be understood that the liquid crystal panel according to an embodiment of the present invention may further include necessary components such as a timing controller. Further, it is to be noted that the liquid crystal panel according to an embodiment of the present invention has a VA display mode, and the pixel structure is designed as a four-domain pixel structure.
  • each of the scanning lines 100 extends in the row direction, and the N scanning lines 100 are arranged in the column direction, wherein the respective scanning lines 100 are parallel to each other.
  • Each of the data lines 200 extends in the column direction, and the M data lines 200 are arranged in the row direction, wherein the data lines 200 are parallel to each other.
  • the scan line 100 and the data line 200 are staggered and electrically insulated from each other to form N x M interlaces.
  • each of the pixels 300 is disposed at a corresponding one of the interlaces, and each of the pixels 300 is connected to the corresponding scan line 100 and data line 200.
  • the pixel 300 includes a thin film transistor 310 connected to a corresponding scan line 100, and a liquid crystal cell 320 connected to a corresponding data line 200, and a thin film transistor 310.
  • the drain is connected to one end of the liquid crystal cell 320, and the other end of the liquid crystal cell 320 is connected to a common voltage line to receive a common voltage signal.
  • the liquid crystal cell 320 is generally constituted by a liquid crystal capacitor (not shown) and a storage capacitor (not shown) in parallel, but the present invention is not limited thereto.
  • n scanning lines 100 adjacent to each other simultaneously receive a high potential signal (or a gate conduction signal) supplied from the scan driver 400 to turn on the thin film transistor 310
  • the M data lines 200 simultaneously receive the data signals provided by the data driver 500 during the duration of the high potential signal, the data signals being supplied to the liquid crystal unit 320 via the turned-on thin film transistor 310; wherein the data signals are common to the data
  • the difference between the voltage signals is liquid crystal The pixel voltage signal of unit 320.
  • the n scan lines 100 simultaneously receive the low potential signal provided by the scan driver 400 for the second low level after the duration of the first low potential signal for the duration of the first low potential signal after the high potential signal duration
  • the n scan lines 100 simultaneously receive the low potential signal provided by the scan driver 400 with the lowest voltage for the duration of the potential signal, and during the duration of the first low potential signal and the duration of the second low potential signal M
  • the strip data line 200 simultaneously receives the common voltage signal provided by the data driver 500.
  • 2 ⁇ n ⁇ N, and n is a positive integer.
  • FIG. 2 is a timing chart of signals when a liquid crystal panel performs driving display according to an embodiment of the present invention.
  • FIG. 2 a timing diagram of data signals and four scan signals received by four adjacent scan lines 100 is shown. It should be noted that each scan signal is alternately formed by a high potential signal and a low potential signal.
  • the four scan lines 100 simultaneously receive the high potential signal (or gate) provided by the scan driver 400.
  • the signal GH to turn on the thin film transistor 310
  • the M data lines 200 simultaneously receive the data signal DT supplied from the data driver 500 during the high potential signal duration T1
  • the data signal DT passing through the turned-on thin film transistor 310 Provided to the liquid crystal cell 320; wherein the difference between the data signal DT and the common voltage signal Vcom is the pixel voltage signal of the liquid crystal cell 320.
  • the four scan lines 100 simultaneously receive the low potential signals GL1, GL2, GL3, and GL4 provided by the scan driver 400, and in the The M data lines 200 within a low potential signal duration T21 simultaneously receive the common voltage signal Vcom provided by the data driver 500.
  • At least one of the low potential signals GL1, GL2, GL3, and GL4 is a low potential signal (or a gate cutoff signal) having the lowest voltage, and the low potential signal having the lowest voltage here can completely turn off the thin film transistor 310.
  • the low potential signal GL1 is set to the low potential signal having the lowest voltage, and the voltages of the low potential signals GL2, GL3, and GL4 are all greater than the lowest voltage.
  • the thin film transistor 310 receiving the low potential signal having the lowest voltage is completely turned off.
  • the thin film transistors 310 receiving the low-potential signals GL2, GL3, and GL4 are not completely turned off, and then the thin film transistors 310 will have a leakage phenomenon, thereby connecting the liquid crystal cells connected to the thin film transistors 310.
  • the pixel voltage in 320 is lower than the pixel voltage in the liquid crystal cell 320 connected to the fully-off thin film transistor 310, thereby affecting the deflection angle of the liquid crystal molecules in each liquid crystal cell 320, thereby realizing color shift compensation for a large viewing angle.
  • the voltages of the low-potential signals GL2, GL3, and GL4 are all different, so that among the pixels connected to the four scan lines 100, the brightness between the pixels of each row has a difference, so that the overall improvement is performed.
  • the deviation of the luminances of the pixels adjacent to each other is further improved, thereby further improving the color shift compensation for the large viewing angle display of the liquid crystal panel according to the embodiment of the present invention.
  • the number N of scanning lines 100 of the liquid crystal panel according to the embodiment of the present invention is set to an integral multiple of 4, that is, N is set to an integral multiple of n, thereby realizing sub-region processing of the liquid crystal panel.
  • the low potential signals GL1 and GL3 may be set to the low potential signal having the lowest voltage, and the voltages of the low potential signals GL2 and GL4 are both greater than the lowest voltage, thus receiving the low potential
  • the scanning lines of the signals GL2 and GL4 are respectively disposed below the scanning lines 100 receiving the low potential signals GL1 and GL3, so that the scanning lines 100 receiving the low potential signals GL1 and GL3 are not adjacent, thereby being able to increase the pixels of adjacent rows
  • the luminance deviation is better to achieve color shift compensation for the large viewing angle display of the liquid crystal panel according to the embodiment of the present invention.
  • the four scan lines 100 simultaneously receive the low potential signal having the lowest voltage supplied by the scan driver 400, that is, the low potential signal GL1
  • the M data lines 200 simultaneously receive the common voltage signal Vcom supplied from the data driver 500 during the second low potential signal duration T22.
  • the liquid crystal panel according to the embodiment of the present invention performs drive display of one frame of picture.
  • a method of driving display of a liquid crystal panel according to an embodiment of the present invention will be described below.
  • FIG. 3 is a flow chart of a method of driving display of a liquid crystal panel according to an embodiment of the present invention.
  • a driving display method package for a liquid crystal panel include:
  • Step S310 During the high potential signal duration T1, the scan driver 400 simultaneously supplies the high potential signal GH to the four scan lines 100 to turn on the thin film transistor 310, and the data driver 500 feeds the M data during the high potential signal duration T1.
  • the line 200 simultaneously supplies a data signal DT, which is supplied to the liquid crystal cell 320 via the turned-on thin film transistor 310.
  • Step S320 The scan driver 400 simultaneously supplies the low potential signals GL1, GL2, GL3, and GL4 to the four scan lines 100 during the first low potential signal duration T21 after the high potential signal duration T1, and at the first low
  • the data driver 500 simultaneously supplies the common voltage signal Vcom to the M data lines 200 during the potential signal duration T21.
  • Step S330 The scan driver 400 simultaneously supplies the low potential signal having the lowest voltage, that is, the low potential signal GL1, to the four scan lines 100 during the second low potential signal duration T22 after the first low potential signal duration T21.
  • the data driver 500 simultaneously supplies the common voltage signal Vcom to the M data lines 200.
  • a liquid crystal panel having a VA display mode has a pixel structure of a pixel to affect a deflection angle of liquid crystal molecules in a pixel under the premise of having a four-domain pixel structure. Color offset compensation for large viewing angles.

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Abstract

公开了了一种液晶面板和液晶面板的驱动方法，该液晶面板包括N条扫描线、M条数据线和阵列排布的N×M个像素；当液晶面板进行驱动显示时，彼此相邻的n条扫描线同时接收高电位信号（GH），且在高电位信号（GH）持续时间（T1）内M条数据线同时接收数据信号（DT）；在第一低电位信号持续时间（T21）内n条扫描线同时接收低电位信号（GL1,GL2,GL3,GL4），在第二低电位信号持续时间（T22）内n条扫描线同时接收具有最低电压的低电位信号（GL1），且在第一低电位信号持续时间（T21）内以及第二低电位信号持续时间（T22）内M条数据线同时接收公共电压信号（Vcom）；2≤n≤N。该液晶面板在具有四畴像素结构的前提下，通过调控像素的像素电压，以影响像素内液晶分子的偏转角度，从而实现对大视角显示的色偏补偿。

Description

液晶面板及其驱动显示方法 技术领域
本发明属于液晶显示技术领域，具体地将，涉及一种液晶面板及其驱动显示方法。
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。
液晶显示器通常包括相对设置的液晶面板和背光模块，其中由于液晶面板无法发光，因此需要背光模块向液晶面板提供均匀的显示光线，以使液晶面板显示影像。目前常见的液晶面板的显示模式主要包括TN(扭曲向列)模式、VA(垂直取向排列)模式、IPS(面内开关切换)模式等。
其中，VA显示模式是指液晶分子与基板垂直取向的显示模式。VA显示模式的液晶面板具有高对比度、高穿透率的画面显示优势，但视角较差。为了改善视角，在VA显示模式的液晶面板中，像素内液晶分子的长轴在不加电的状态下与滤光片垂直，每个像素被划分为多个畴区(多畴)，在加电状态下，每个畴区内的液晶分子向各自的方向偏转，通过这种方法，将同一像素中的液晶分子取向分为多个方向，由此补偿各个角度的视角，进而实现各个视角方向的均匀显示，以有效改善不同观察角度的灰阶显示状态下的视角特性。
八畴划分是常采用的一种像素畴区的划分，但是在八畴的像素中，由于采用了较多数量的薄膜晶体管以及响应的电容，因此会使得像素的开口率受到严重影响，并且在八畴像素结构的驱动中，为了补偿大视角的色偏，某些畴区的亮度被降低，这些都将会造成液晶面板的穿透率的降低。
发明内容
为了解决上述现有技术的问题，本发明的目的在于提供一种在具有四畴像素结构的前提下实现大视角显示的色偏补偿的液晶面板及其驱动显示方法。
根据本发明的一实施方式，提供了一种液晶面板，所述液晶面板包括N条扫描线、M条数据线和阵列排布的N×M个像素，N和M均为正整数；所述扫描线沿行方向延伸，所述数据线沿列方向延伸，所述扫描线与所述数据线彼此交叉且绝缘，所述像素设置于对应的扫描线和对应的数据线的交叉处，所述像素分别与对应的扫描线和对应的数据线连接；当所述液晶面板进行驱动显示时，彼此相邻的n条扫描线同时接收高电位信号，且在所述高电位信号持续时间内M条数据线同时接收数据信号；在所述高电位信号持续时间之后的第一低电位信号持续时间内n条扫描线同时接收低电位信号，在所述第一低电位信号持续时间之后的第二低电位信号持续时间内n条扫描线同时接收具有最低电压的低电位信号，且在所述第一低电位信号持续时间内以及所述第二低电位信号持续时间内M条数据线同时接收公共电压信号；其中，2≤n≤N，且n为正整数。
在根据本发明的一实施方式中，可选地，在所述第一低电位信号持续时间内，所述n条扫描线中的至少一条扫描线接收具有最低电压的低电位信号，所述n条扫描线中其余的扫描线接收的低电位信号的电压均大于所述最低电压。
在根据本发明的一实施方式中，可选地，所述接收具有最低电压的低电位信号的扫描线彼此不相邻。
在根据本发明的一实施方式中，可选地，所述n条扫描线中其余的扫描线接收的低电位信号的电压各不相同。
在根据本发明的一实施方式中，可选地，N为n的整数倍。
根据本发明的另一实施方式，还提供了一种液晶面板的驱动显示方法，所述液晶面板包括：N条扫描线、M条数据线和阵列排布的N×M个像素，N和M均为正整数，其中，所述驱动显示方法包括：向彼此相邻的n条扫描线同时提供高电位信号，并且在所述高电位信号持续时间内向M条数据线同时提供数据信号；其中，2≤n≤N，且n为正整数；在所述高电位信号持续时间之后的第一低电位信号持续时间内向n条扫描线同时提供低电位信号，并且在所述 第一低电位信号持续时间内向M条数据线同时提供公共电压信号；在所述第一低电位信号持续时间之后的第二低电位信号持续时间内向n条扫描线同时提供具有最低电压的低电位信号，并且在所述第二低电位信号持续时间内向M条数据线同时提供公共电压信号。
在根据本发明的另一实施方式中，可选地，在所述第一低电位信号持续时间内，所述n条扫描线中的至少一条扫描线接收具有最低电压的低电位信号，所述n条扫描线中其余的扫描线接收的低电位信号的电压均大于所述最低电压。
在根据本发明的另一实施方式中，可选地，所述接收具有最低电压的低电位信号的扫描线彼此不相邻。
在根据本发明的另一实施方式中，可选地，所述n条扫描线中其余的扫描线接收的低电位信号的电压各不相同。
在根据本发明的另一实施方式中，可选地，N为n的整数倍。
本发明的有益效果：本发明的具有VA显示模式的液晶面板，其在具有四畴像素结构的前提下，通过调控像素的像素电压，以影响像素内液晶分子的偏转角度，从而实现对大视角显示的色偏补偿。
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液晶面板的结构示意图；
图2是根据本发明的实施例的液晶面板进行驱动显示时各信号的时序图；
图3是根据本发明的实施例的液晶面板的驱动显示方法的流程图。
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。
在附图中，为了清楚器件，夸大了层和区域的厚度。相同的标号在附图和说明书中始终表示相同的元件。
图1是根据本发明的实施例的液晶面板的结构示意图。
参照图1，根据本发明的实施例的液晶面板包括：N条扫描线100、M条数据线200、阵列排布的N×M个像素300、扫描驱动器400和数据驱动器500。应当理解的是，根据本发明的实施例的液晶面板还可以包括时序控制器等必要的元器件。此外，需要说明的是，根据本发明的实施例的液晶面板具有VA显示模式，并且像素结构被设计为四畴像素结构。
具体而言，每条扫描线100沿行方向延伸，并且N条扫描线100沿列方向排布，其中各扫描线100彼此之间相互平行。每条数据线200沿列方向延伸，并且M条数据线200沿行方向排布，其中各数据线200彼此之间相互平行。这样，从空间上看，扫描线100和数据线200彼此交错且电绝缘，以形成N×M个交错处。
每个像素300设置于对应的一个交错处，并且每个像素300连接到对应的扫描线100和数据线200。作为本发明的一个实施方式，像素300包括薄膜晶体管310和液晶单元320，薄膜晶体管310的栅极连接到对应的扫描线100，薄膜晶体管310的源极连接到对应的数据线200，薄膜晶体管310的漏极连接到液晶单元320的一端，液晶单元320的另一端连接到公共电压线，以接收公共电压信号。其中，液晶单元320通常由液晶电容器(未示出)和储存电容器(未示出)并联构成，但本发明并不限制于此。
当根据本发明的实施例的液晶面板进行驱动显示时，彼此相邻的n条扫描线100同时接收由扫描驱动器400提供的高电位信号(或称栅极导通信号)，以导通薄膜晶体管310，并且在所述高电位信号持续时间内M条数据线200同时接收由数据驱动器500提供的数据信号，该数据信号经由导通的薄膜晶体管310提供给液晶单元320；其中，数据信号与公共电压信号之间的差值为液晶 单元320的像素电压信号。
在所述高电位信号持续时间之后的第一低电位信号持续时间内n条扫描线100同时接收由扫描驱动器400提供的低电位信号，在所述第一低电位信号持续时间之后的第二低电位信号持续时间内n条扫描线100同时接收由扫描驱动器400提供的具有最低电压的低电位信号，并且在所述第一低电位信号持续时间内以及所述第二低电位信号持续时间内M条数据线200同时接收由数据驱动器500提供的公共电压信号。这里，2≤n≤N，且n为正整数。
以下，以n为4为例对根据本发明的实施例的液晶面板进行驱动显示的过程进行更加详细的描述。
图2是根据本发明的实施例的液晶面板进行驱动显示时各信号的时序图。在图2中，示出了数据信号以及四条彼此相邻的扫描线100接收的四个扫描信号的时序图。需要说明的是，每个扫描信号由高电位信号和低电位信号交替形成。
一并参照图1和图2，首先，在高电位信号(或称栅极导通信号)持续时间T1内，这四条扫描线100同时接收由扫描驱动器400提供的高电位信号(或称栅极导通信号)GH，以导通薄膜晶体管310，并且在高电位信号持续时间T1内M条数据线200同时接收由数据驱动器500提供的数据信号DT，该数据信号DT经由导通的薄膜晶体管310提供给液晶单元320；其中，数据信号DT与公共电压信号Vcom之间的差值为液晶单元320的像素电压信号。
接着，在高电位信号持续时间T1之后的第一低电位信号持续时间T21内，这四条扫描线100同时接收由扫描驱动器400提供的低电位信号GL1、GL2、GL3和GL4，并且在所述第一低电位信号持续时间T21内M条数据线200同时接收由数据驱动器500提供的公共电压信号Vcom。
低电位信号GL1、GL2、GL3和GL4中至少有一个是具有最低电压的低电位信号(或称栅极截止信号)，这里所述具有最低电压的低电位信号能够将薄膜晶体管310完全截止。这里，将低电位信号GL1设置成具有最低电压的低电位信号，而低电位信号GL2、GL3和GL4的电压均大于所述最低电压。
这样，在第一低电位信号持续时间T21内，接收具有最低电压的低电位信号的薄膜晶体管310完全截止。而在第一低电位信号持续时间T21内，接收低电位信号GL2、GL3和GL4的薄膜晶体管310未完全截止，那么这些薄膜晶体管310将出现漏电现象，从而使与这些薄膜晶体管310连接的液晶单元320中的像素电压低于与完全截止的薄膜晶体管310连接的液晶单元320中的像素电压，进而影响各液晶单元320中液晶分子的偏转角度，实现对大视角的色偏补偿。
进一步地，在本实施例中，低电位信号GL2、GL3和GL4的电压均不相同，这样，在这四条扫描线100连接的像素中，各行像素之间的亮度均具有差异，这样整体上提高了彼此相邻行的像素的亮度的偏差，从而进一步改善对根据本发明的实施例的液晶面板的大视角显示的色偏补偿。
更进一步地，将根据本发明的实施例的液晶面板的扫描线100的条数N设置为4的整数倍，即将N设置n的整数倍，从而实现对液晶面板的分区域处理。
此外，作为本发明的另一实施方式，可以将低电位信号GL1和GL3设置为具有最低电压的低电位信号，而低电位信号GL2和GL4的电压均大于所述最低电压，这样，接收低电位信号GL2和GL4的扫描线分别设置在接收低电位信号GL1和GL3的扫描线100的下方，使接收低电位信号GL1和GL3的扫描线100不相邻，从而能够提高彼此相邻行的像素的亮度偏差，更好地实现对根据本发明的实施例的液晶面板的大视角显示的色偏补偿。
最后，在第一低电位信号持续时间T21之后的第二低电位信号持续时间T22内，这四条扫描线100同时接收由扫描驱动器400提供的具有最低电压的低电位信号，即低电位信号GL1，并且在第二低电位信号持续时间T22内M条数据线200同时接收由数据驱动器500提供的公共电压信号Vcom。
如此，根据本发明的实施例的液晶面板完成了一帧画面的驱动显示。以下对根据本发明的实施例的液晶面板进行驱动显示的方法进行说明。
图3是根据本发明的实施例的液晶面板的驱动显示方法的流程图。
一并参照图1至图3，根据本发明的实施例的液晶面板的驱动显示方法包 括：
步骤S310：在高电位信号持续时间T1内，扫描驱动器400向四条扫描线100同时提供高电位信号GH，以导通薄膜晶体管310，并且在高电位信号持续时间T1内数据驱动器500向M条数据线200同时提供数据信号DT，该数据信号DT经由导通的薄膜晶体管310提供给液晶单元320。
步骤S320：在高电位信号持续时间T1之后的第一低电位信号持续时间T21内，扫描驱动器400向四条扫描线100同时提供低电位信号GL1、GL2、GL3和GL4，并且在所述第一低电位信号持续时间T21内数据驱动器500向M条数据线200同时提供公共电压信号Vcom。
步骤S330：在第一低电位信号持续时间T21之后的第二低电位信号持续时间T22内，扫描驱动器400向这四条扫描线100同时提供具有最低电压的低电位信号，即低电位信号GL1，并且在第二低电位信号持续时间T22内，数据驱动器500向M条数据线200同时提供公共电压信号Vcom。
综上所述，根据本发明的实施例的具有VA显示模式的液晶面板，其在具有四畴像素结构的前提下，通过调控像素的像素电压，以影响像素内液晶分子的偏转角度，从而实现对大视角显示的色偏补偿。
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 (12)

  1. 一种液晶面板，其中，所述液晶面板包括N条扫描线、M条数据线和阵列排布的N×M个像素，N和M均为正整数；
    所述扫描线沿行方向延伸，所述数据线沿列方向延伸，所述扫描线与所述数据线彼此交叉且绝缘，所述像素设置于对应的扫描线和对应的数据线的交叉处，所述像素分别与对应的扫描线和对应的数据线连接；
    当所述液晶面板进行驱动显示时，彼此相邻的n条扫描线同时接收高电位信号，且在所述高电位信号持续时间内M条数据线同时接收数据信号；在所述高电位信号持续时间之后的第一低电位信号持续时间内n条扫描线同时接收低电位信号，在所述第一低电位信号持续时间之后的第二低电位信号持续时间内n条扫描线同时接收具有最低电压的低电位信号，且在所述第一低电位信号持续时间内以及所述第二低电位信号持续时间内M条数据线同时接收公共电压信号；其中，2≤n≤N，且n为正整数。
  2. 根据权利要求1所述的液晶面板，其中，在所述第一低电位信号持续时间内，所述n条扫描线中的至少一条扫描线接收具有最低电压的低电位信号，所述n条扫描线中其余的扫描线接收的低电位信号的电压均大于所述最低电压。
  3. 根据权利要求2所述的液晶面板，其中，所述接收具有最低电压的低电位信号的扫描线彼此不相邻。
  4. 根据权利要求2所述的液晶面板，其中，所述n条扫描线中其余的扫描线接收的低电位信号的电压各不相同。
  5. 根据权利要求3所述的液晶面板，其中，所述n条扫描线中其余的扫描线接收的低电位信号的电压各不相同。
  6. 根据权利要求1所述的液晶面板，其中，N为n的整数倍。
  7. 一种液晶面板的驱动显示方法，所述液晶面板包括：N条扫描线、M 条数据线和阵列排布的N×M个像素，N和M均为正整数，其中，所述驱动显示方法包括：
    向彼此相邻的n条扫描线同时提供高电位信号，并且在所述高电位信号持续时间内向M条数据线同时提供数据信号；其中，2≤n≤N，且n为正整数；
    在所述高电位信号持续时间之后的第一低电位信号持续时间内向n条扫描线同时提供低电位信号，并且在所述第一低电位信号持续时间内向M条数据线同时提供公共电压信号；
    在所述第一低电位信号持续时间之后的第二低电位信号持续时间内向n条扫描线同时提供具有最低电压的低电位信号，并且在所述第二低电位信号持续时间内向M条数据线同时提供公共电压信号。
  8. 根据权利要求7所述的液晶面板的驱动显示方法，其中，在所述第一低电位信号持续时间内，所述n条扫描线中的至少一条扫描线接收具有最低电压的低电位信号，所述n条扫描线中其余的扫描线接收的低电位信号的电压均大于所述最低电压。
  9. 根据权利要求7所述的液晶面板的驱动显示方法，其中，所述接收具有最低电压的低电位信号的扫描线彼此不相邻。
  10. 根据权利要求8所述的液晶面板的驱动显示方法，其中，所述n条扫描线中其余的扫描线接收的低电位信号的电压各不相同。
  11. 根据权利要求9所述的液晶面板的驱动显示方法，其中，所述n条扫描线中其余的扫描线接收的低电位信号的电压各不相同。
  12. 根据权利要求7所述的液晶面板的驱动显示方法，其中，N为n的整数倍。
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