CN113050330B - 液晶显示面板及其配向方法 - Google Patents
液晶显示面板及其配向方法 Download PDFInfo
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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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133305—Flexible substrates, e.g. plastics, organic film
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- G02—OPTICS
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- 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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- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
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- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
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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
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- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- 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
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- G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
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- 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
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- G02F1/136286—Wiring, e.g. gate line, drain line
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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
- G09G3/2007—Display of intermediate tones
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- 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
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- 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
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- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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- G02F2203/00—Function characteristic
- G02F2203/30—Gray scale
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- 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
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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
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- G09G3/3611—Control of matrices with row and column drivers
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- 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
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Abstract
本申请提供一种液晶显示面板及其配向方法,通过在255灰度下向DBS电极内输入等于所述像素电压的电压,能够在配向过程中,使得DBS电极处的液晶的偏转与像素电极处的液晶的偏转一致,从而提升了DBS电极处的液晶显示面板在255灰度下的亮度,进而提高了所述液晶显示面板的透过率。
Description
技术领域
本申请涉及显示技术领域,尤其涉及一种液晶显示面板及其配向方法。
背景技术
液晶显示器(Liquid Crystal Display,LCD)具有机身薄、省电、无辐射等众多优点,得到了广泛的应用,在平板显示领域中占主导地位。现有市场上的液晶显示器大部分为背光型液晶显示器,其包括液晶显示面板及背光模组(backlight module)。液晶显示面板的工作原理是在薄膜晶体管阵列基板(Thin Film Transistor Array Substrate,TFTArray Substrate)与彩色滤光片基板(Color Filter,CF)之间灌入液晶分子,并在两片基板上施加驱动电压来控制液晶分子的旋转方向,以将背光模组的光线折射出来产生画面。
传统的液晶显示面板需要在彩膜基板一侧设置黑色矩阵(BM)以进行遮光,当应用于曲面液晶显示面板时,对面板进行弯曲会使BM的位置产生偏移(shift)而导致漏光及色偏,为解决这一问题,现有技术采用减少数据线上的黑色矩阵(data BM less,DBS)的设计,DBS电极上并不施加电压,与DBS电极对应的液晶不转动而呈现黑态,以替代黑色矩阵进行遮光。
现有技术中,在采用HVA配向技术及DBS技术的液晶显示面板在进行配向时,由于DBS电极上并不施加电压,与DBS电极对应的液晶不转动,而像素电极及CF公共电极之间施加了电压,与像素电极对应的液晶中靠近DBS电极区域的液晶的偏转角度会受与DBS电极对应的液晶的影响,影响了液晶显示面板的透过率。
发明内容
本申请提供一种能够提高液晶显示面板的透过率的液晶显示面板的配向方法。
为解决上述问题,本申请提供的技术方案如下:
本申请一方面提供一种液晶显示面板的配向方法,包括:
步骤S1:提供一液晶显示面板,所述液晶显示面板包括一阵列基板、一彩膜基板及形成在所述阵列基板和所述彩膜基板之间的液晶;所述阵列基板包括多个DBS电极及多个像素电极,所述彩膜基板的面向所述液晶的一侧设置有第一公共电极;
步骤S2:向所述DBS电极、所述像素电极及所述第一公共电极分别输入DBS电压、像素电压及第一公共电压;其中,在255灰度下,所述DBS电压等于所述像素电压;在0~254灰度下,所述DBS电压等于所述第一公共电压;及
步骤S3:对所述液晶显示面板进行配向。
在本申请一可选实施例中,所述阵列基板还包括多条数据线,所述DBS电极投影覆盖所述数据线。
在本申请一可选实施例中,所述数据线通过薄膜晶体管与所述像素电极电连接。
在本申请一可选实施例中,所述液晶显示面板还包括一电压输入控制单元,所述电压输入控制单元用于向所述像素电极、所述DBS电极及所述第一公共电极提供所述像素电压、所述DBS电压及所述第一公共电压。
在本申请一可选实施例中,所述像素电压及所述DBS电压均包括正帧电压和负帧电压。
在本申请一可选实施例中,所述电压输入控制单元包括时序控制器、伽马电压产生模块及源极驱动器;其中,
所述伽马电压产生模块的输入端与所述时序控制器的第一控制端电连接,所述时序控制器的第二控制端与所述源极驱动器的第二输入端电连接,所述源极驱动器的第一输入端与所述伽马电压产生模块的输出端电连接,所述源极驱动器的输出端与分别与所述像素电极、所述DBS电极及所述第一公共电极电连接;
所述伽马电压产生模块用于产生伽马电压;
所述时序控制器用于控制所述伽马电压产生模块输出所述伽马电压至所述源极驱动器;
所述源极驱动器用于对所述伽马电压进行分压并输出,以获得与所述像素电极或DBS电极或第一公共电极个数相匹配的像素电压或DBS电压或第一公共电压。
本申请第二方面提供一种液晶显示面板,包括
阵列基板,所述阵列基板包括多个DBS电极及多个像素电极;
彩膜基板,所述彩膜基板的面向所述液晶的一侧设置有第一公共电极;及
液晶,形成在所述阵列基板和所述彩膜基板之间;
其中,在255灰度下,所述DBS电极的电压等于所述像素电极的电压,在0~254灰度下,所述DBS电极的电压等于所述第一公共电极的电压,以对所述液晶显示面板进行配向。
在本申请一可选实施例中,所述像素电极的电压及所述DBS电极的电压均包括正帧电压和负帧电压。
本申请的有益效果为:本申请提供的液晶显示面板及其配向方法,在255灰度下向DBS电极内输入等于所述像素电压的电压,能够在配向过程中,使得DBS电极处的液晶的偏转与像素电极处的液晶的偏转一致,从而提升了DBS电极处的液晶显示面板在255灰度下的亮度,进而提高了所述液晶显示面板的透过率。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它的附图。
图1为本申请一较佳实施例提供的一种液晶显示面板的剖面示意图;
图2为本申请一较佳实施例提供的一种电压输入控制单元的示意图;及
图3为本申请一较佳实施例提供的一种液晶显示面板的配向方法流程图;
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述。显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
在本申请的描述中,需要理解的是,术语“上”、“下”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制。此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。
本申请可以在不同实施中重复参考数字和/或参考字母,这种重复是为了简化和清楚的目的,其本身不指示所讨论各种实施方式和/或设置之间的关系。
本申请针对现有的液晶显示面板的液晶在配向过程中,与像素电极对应的液晶中靠近DBS电极区域的液晶的偏转角度会受与DBS电极对应的液晶的影响导致液晶显示面板的透过率不高的技术问题,在255灰度下向DBS电极内输入像素电极的电压,使得DBS电极处的液晶的偏转与像素电极处的液晶的偏转一致,从而提升DBS电极处的液晶显示面板在255灰度下的亮度,进而提高了所述液晶显示面板的透过率。
本发明实施例中提到的灰度(Gray scale)是指亮度的明暗程度。对于数字化的显示技术而言,灰度是显示色彩数的决定因素。一般而言灰度越高,显示的色彩越丰富,画面也越细腻,更易表现丰富的细节。把白色与黑色之间按对数关系分成若干级,称为“灰度等级”,范围一般从0到255,白色为255,黑色为0,故黑白图片也称灰度图像,灰度相似的概念还有灰阶,所述灰阶是指一个影像可被定义是一个二维的函数f(x,y),其中x和y是空间平面坐标,在任意一对坐标轴(x,y),f的大小称为这幅影像在该点的强度(instensity)或灰阶(gray level),也即,灰阶是指地物电磁波辐射强度表现在黑白影像上的色调深浅的等级,是划分地物波谱特征的尺度。
像素的中文全称为图像元素,像素仅仅只是分辨率的尺寸单位,而不是画质。如同摄影的相片一样,数码影像也具有连续性的浓淡阶调,我们若把影像放大数倍,会发现这些连续色调其实是由许多色彩相近的小方点所组成,这些小方点就是构成影像的最小单元——像素。这种最小的图形单元在屏幕上显示通常是单个的染色点,越高位的像素,其拥有的色板也就越丰富,也就越能表达颜色的真实感。从定义上来看,像素是指基本原色素及其灰度的基本编码。
以下将结合具体实施例对本申请的液晶显示面板的配向方法进行详细描述。
请参阅图1-2,申请较佳实施例提供一种液晶显示面板100。
其中,所述液晶显示面板100包括一阵列基板10、一彩膜基板20及形成在所述阵列基板10和所述彩膜基板20之间的液晶30。
其中,所述阵列基板10包括一第一衬底11、多条形成在所述第一衬底11上的数据线12、一形成在所述第一衬底11上且覆盖所述数据线12的绝缘层13及形成在所述绝缘层13上的多个像素电极14及多个DBS电极15。一个所述像素电极14与一个所述DBS电极15相邻。所述DBS电极15投影覆盖所述数据线12。
其中,所述像素电极14与所述DBS电极15位于所述阵列基板10的同一层上。
其中,所述阵列基板10还包括多个薄膜晶体管(图未示),所述数据线12通过所述薄膜晶体管与所述像素电极14电连接。
其中,所述阵列基板10还包括多条扫描线(图未示),一个所述薄膜晶体管电连接一条所述扫描线。
其中,所述彩膜基板20包括一第二衬底21及形成在所述第二衬底21上的第一公共电极22,所述第一公共电极22位于所述第二衬底21的面向所述液晶30的一侧。
具体的,请参阅图2,所述液晶显示面板100还包括一电压输入控制单元,所述电压输入控制单元用于向所述像素电极14、所述DBS电极15及所述第一公共电极22提供所述像素电压、所述DBS电压及所述第一公共电压。所述像素电压及所述DBS电压均包括正帧电压和负帧电压。
在本申请一可选实施例中,所述正帧电压与所述第一公共电压的差值的绝对值等于所述负帧电压与所述第一公共电压的差值的绝对值,以免产生闪烁现象。
其中,所述电压输入控制单元包括时序控制器40、伽马电压产生模块50及源极驱动器60。
其中,所述伽马电压产生模块50的输入端51与所述时序控制器40的第一控制端41电连接,所述时序控制器40的第二控制端42与所述源极驱动器60的第二输入端62电连接,所述源极驱动器60的第一输入端61与所述伽马电压产生模块50的输出端52电连接,所述源极驱动器60的输出端63分别与所述像素电极14、所述DBS电极15及所述第一公共电极22电连接。
其中,所述伽马电压产生模块50用于产生伽马电压。所述伽马电压用来控制液晶显示面板的灰度。
在本实施例中,所述伽马电压分为十四组(GM1~GM14),其中,GM1~GM7为正帧电压,GM8~GM14为负帧电压,在本实施例中,GM1和GM14对应255灰度时的正帧电压和负帧电压,GM7和GM8对应0灰度时的正帧电压和负帧电压。
在其他实施例中,所述伽马电压还可以根据实际情况进行分组。
其中,所述时序控制器40用于控制所述伽马电压产生模块50输出所述伽马电压至所述源极驱动器60。
其中,所述源极驱动器60用于对所述伽马电压进行分压并输出,以获得与所述像素电极14或DBS电极15或第一公共电极22个数相匹配的像素电压或DBS电压或第一公共电压。
请参阅图3,本申请较佳实施例还提供一种液晶显示面板的配向方法,包括如下步骤:
步骤S1:提供一液晶显示面板;其中,所述液晶显示面板为如上所述的液晶显示面板100;
步骤S2:向所述液晶显示面板100的所述DBS电极15、所述像素电极14及所述第一公共电极22中分别输入DBS电压、像素电压及第一公共电压;其中,在255灰度下,所述DBS电压等于所述像素电压,在0~254灰度下,所述DBS电压等于所述第一公共电压。
其中,在255灰度下,所述DBS电极15与所述第一公共电极22之间以及所述像素电极14与所述第一公共电极22之间分别形成电场,使与所述DBS电极15对应的所述液晶30同与所述像素电极14对应的所述液晶30同步偏转,从而能够提升DBS电极处的液晶显示面板在255灰度下的亮度,进而提高了所述液晶显示面板100的透过率。
其中,在0~254灰度下,所述DBS电极15与所述第一公共电极22之间没有形成电场,所述像素电极14与所述第一公共电极22之间形成了电场,与所述DBS电极15对应的所述液晶30不偏转,与所述像素电极14对应的所述液晶30偏转。
步骤S3:对所述液晶显示面板100进行配向。
在本实施例中,通过应用HVA配向技术对所述液晶显示面板100进行配向。
本申请提供的液晶显示面板及其配向方法,在255灰度下向DBS电极内输入等于所述像素电压的电压,能够在配向过程中,使得DBS电极处的液晶的偏转与像素电极处的液晶的偏转一致,从而提升了DBS电极处的液晶显示面板在255灰度下的亮度,进而提高了所述液晶显示面板的透过率。
综上所述,虽然本申请已以优选实施例揭露如上,但上述优选实施例并非用以限制本申请,本领域的普通技术人员,在不脱离本申请的精神和范围内,均可作各种更动与润饰,因此本申请的保护范围以权利要求界定的范围为准。
Claims (8)
1.一种液晶显示面板的配向方法,其特征在于,包括:
步骤S1:提供一液晶显示面板,所述液晶显示面板包括一阵列基板、一彩膜基板及形成在所述阵列基板和所述彩膜基板之间的液晶;所述阵列基板包括多个DBS电极及多个像素电极,所述彩膜基板的面向所述液晶的一侧设置有第一公共电极;
步骤S2:向所述DBS电极、所述像素电极及所述第一公共电极分别输入DBS电压、像素电压及第一公共电压;其中,在255灰度下,所述DBS电压等于所述像素电压;在0~254灰度下,所述DBS电压等于所述第一公共电压;及
步骤S3:对所述液晶显示面板进行配向。
2.如权利要求1所述的液晶显示面板的配向方法,其特征在于,所述阵列基板还包括多条数据线,所述DBS电极投影覆盖所述数据线。
3.如权利要求2所述的液晶显示面板的配向方法,其特征在于,所述数据线通过薄膜晶体管与所述像素电极电连接。
4.如权利要求3所述的液晶显示面板的配向方法,其特征在于,所述液晶显示面板还包括一电压输入控制单元,所述电压输入控制单元用于向所述像素电极、所述DBS电极及所述第一公共电极提供所述像素电压、所述DBS电压及所述第一公共电压。
5.如权利要求4所述的液晶显示面板的配向方法,其特征在于,所述像素电压及所述DBS电压均包括正帧电压和负帧电压。
6.如权利要求4所述的液晶显示面板的配向方法,其特征在于,所述电压输入控制单元包括时序控制器、伽马电压产生模块及源极驱动器;其中,
所述伽马电压产生模块的输入端与所述时序控制器的第一控制端电连接,所述时序控制器的第二控制端与所述源极驱动器的第二输入端电连接,所述源极驱动器的第一输入端与所述伽马电压产生模块的输出端电连接,所述源极驱动器的输出端与分别与所述像素电极、所述DBS电极及所述第一公共电极电连接;
所述伽马电压产生模块用于产生伽马电压;
所述时序控制器用于控制所述伽马电压产生模块输出所述伽马电压至所述源极驱动器;
所述源极驱动器用于对所述伽马电压进行分压并输出,以获得与所述像素电极或DBS电极或第一公共电极个数相匹配的像素电压或DBS电压或第一公共电压。
7.一种液晶显示面板,包括:
阵列基板,所述阵列基板包括多个DBS电极及多个像素电极;
彩膜基板,所述彩膜基板的面向所述液晶的一侧设置有第一公共电极;及
液晶,形成在所述阵列基板和所述彩膜基板之间;
其中,在255灰度下,所述DBS电极的电压等于所述像素电极的电压,在0~254灰度下,所述DBS电压等于所述第一公共电极的电压,以对所述液晶显示面板进行配向。
8.如权利要求7所述的液晶显示面板,其特征在于,所述像素电极的电压及所述DBS电极的电压均包括正帧电压和负帧电压。
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