CN106896606A - 一种显示面板及显示装置 - Google Patents
一种显示面板及显示装置 Download PDFInfo
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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
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Abstract
本发明提供了一种显示面板及显示装置,该显示面板包括:阵列基板,其上平行设置有多条栅线;彩膜基板;液晶层,其设置于阵列基板和彩膜基板之间,其中,沿栅线的输出近端至输出远端的方向,液晶层的厚度逐渐减小。本发明可以提升面板的显示均一性。
Description
技术领域
本发明属于显示技术领域,具体地说,尤其涉及一种显示面板及显示装置。
背景技术
在液晶显示装置进行画面显示时,每帧画面的切换是通过扫描线扫描的方式实现的。
由于扫描线由金属材料形成,金属材料具有电阻。随着传输距离的增大,扫描线上的电压会降低,这种现象称之为压降。如图1所示,随着像素A、像素B和像素C与栅线输入端距离的由近至远,压降由低至高。
具体的,现有液晶显示面板中的栅线压降表达式为:
其中,ΔVp表示压降值,Cgs表示栅线与开关元件的源极/漏极之间的电容,Clc表示液晶电容,Cs表示存储电容,Vghl表示理想输入电压与实际输入电压的差值。
如图2所示为像素A、像素B和像素C的压降示意图,随着像素A、像素B和像素C与栅线GATE输入端的距离由近至远(即距离扫描信号驱动电路由近及远),压降由低至高,即Va<Vb<Vc,其中,Va表示像素A的压降,ΔVa表示像素A馈通电压,Vb表示像素B的压降,ΔVb表示像素B馈通电压,Vc表示像素C的压降,ΔVc表示像素B馈通电压,Vgh表示栅线理想输入电压。由上述栅线压降表达式可知,ΔVp会造成靠近栅线输入端的画面较亮,远离栅线输入端的画面较暗,影响面板显示均一性。
发明内容
为解决以上问题,本发明提供了一种显示面板及显示装置,用以提升面板的显示均一性。
根据本发明的一个方面,提供了一种显示面板,包括:
阵列基板,其上平行设置有多条栅线;
彩膜基板;
液晶层,其设置于所述阵列基板和所述彩膜基板之间,
其中,沿所述栅线的输出近端至输出远端的方向,所述液晶层的厚度逐渐减小。
根据本发明的一个实施例,还包括间隙子,其设置于所述阵列基板和所述彩膜基板之间,其中,沿所述栅线的输出近端至输出远端的方向,所述间隙子的高度逐渐减小。
根据本发明的一个实施例,所述间隙子通过采用在预定透光位置设置有不同厚度铬膜的光罩照射负性光阻形成。
根据本发明的一个实施例,所述间隙子通过调整间隙子材料在所述彩膜基板上的预定位置的吐出量形成,或者所述间隙子通过调整用于喷射间隙子材料的喷嘴与所述彩膜基板上的预定位置的距离或喷嘴喷射间隙子材料的速度形成。
根据本发明的一个实施例,还包括黑矩阵,其设置于所述彩膜基板上,其中,沿所述栅线的输出近端至输出远端的方向,所述黑矩阵的厚度逐渐增大。
根据本发明的一个实施例,所述黑矩阵通过调整黑矩阵材料在所述彩膜基板上的预定位置的吐出量形成,或者通过调整用于喷射黑矩阵材料的喷嘴与所述彩膜基板上的预定位置的距离或喷嘴喷射黑矩阵材料的速度形成。
根据本发明的一个实施例,还包括分别设置于所述阵列基板靠近所述液晶层一侧的第一取向层和所述彩膜基板靠近所述液晶层的一侧的第二取向层,
其中,沿所述栅线的输出近端至输出远端的方向,所述第一取向层或所述第二取向层的厚度逐渐增大。
根据本发明的一个实施例,所述第一取向层/所述第二取向层通过采用设置有不同大小孔洞的印刷版将取向材料转印在所述阵列基板/所述彩膜基板上形成。
根据本发明的一个实施例,沿所述栅线的输出近端至输出远端的方向,所述印刷版上的孔洞逐渐减小。
根据本发明的另一个方面,还提供了一种显示装置,包括以上所述的显示面板。
本发明的有益效果:
本发明通过沿栅线的输出近端至输出远端的方向,将液晶层的厚度设置为逐渐减小,可以使得扫描信号沿栅线的输出近端至输出远端的方向压降一致,进而使得面板各处输出的电压均匀,提升面板显示的均一性。
本发明的其它特征和优点将在随后的说明书中阐述,并且,部分地从说明书中变得显而易见,或者通过实施本发明而了解。本发明的目的和其他优点可通过在说明书、权利要求书以及附图中所特别指出的结构来实现和获得。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要的附图做简单的介绍:
图1是现有技术中的一种阵列基板布线示意图;
图2是对应图1的各像素驱动电压波形示意图;
图3是根据本发明的一个实施例的显示面板结构示意图;
图4是根据本发明的一个实施例的光罩结构及对应的间隙子高度渐变示意图;
图5是根据本发明的一个实施例的彩膜基板上的黑矩阵结构示意图;
图6是根据本发明的一个实施例的彩膜基板侧或阵列基板侧的取向层结构示意图;
图7是根据本发明的一个实施例的采用印刷版转印取向材料的示意图;
图8是根据本发明的一个实施例的印刷版孔洞示意图;
图9是根据本发明的一个实施例的印刷版孔洞渐变示意图。
具体实施方式
以下将结合附图及实施例来详细说明本发明的实施方式,借此对本发明如何应用技术手段来解决技术问题,并达成技术效果的实现过程能充分理解并据以实施。需要说明的是,只要不构成冲突,本发明中的各个实施例以及各实施例中的各个特征可以相互结合,所形成的技术方案均在本发明的保护范围之内。
如图3所示,本发明提供了一种显示面板,包括阵列基板11、彩膜基板12和液晶层13。阵列基板11上平行设置有多条栅线(未示出)。液晶层13设置于阵列基板11和彩膜基板12之间。其中,沿栅线的输出近端至输出远端的方向(箭头标注方向,即距离扫描信号驱动电路由近及远方向),液晶层的厚度逐渐减小。
在液晶显示面板中,可以将阵列基板和彩膜基板之间的液晶层等效为一个液晶电容。由栅线压降表达式可知,液晶电容Clc影响压降ΔVp。在其他参数取值不变情况下,液晶电容Clc越大,压降ΔVp越小。由于液晶电容Clc=介电常数*电极间面积/电极间距离。也就是说,液晶电容的两个电极之间距离越大,则压降ΔVp越大,反之,压降ΔVp越小。因此,沿栅线的输出端近端至远端的方向,液晶电容的两个电极之间的距离逐渐减小,可以使得压降ΔVp沿栅线的输出端近端至远端的方向逐渐降低。这样,通过调整液晶电容的两个电极之间的距离(即液晶层的厚度)可以使得栅线的输出近端至输出远端的ΔVp趋于一致,使得面板各处输出的电压均匀,提升面板显示的均一性。
在本发明的一个实施例中,该显示面板还包括间隙子。该间隙子设置于阵列基板和彩膜基板之间。其中,沿栅线的输出近端至输出远端的方向,间隙子的高度逐渐减小。具体的,通常将间隙子设置于阵列基板和彩膜基板之间,并固定在彩膜基板一侧,用作支撑部件,以保持阵列基板和彩膜基板之间的距离不变。但是,在本发明中,沿栅线的输出端近端至远端的方向,间隙子121的高度逐渐减小,则使得阵列基板和彩膜基板之间的距离沿栅线的输出端近端至远端的方向逐渐减小,使得液晶层的厚度沿栅线的输出近端至输出远端的方向逐渐减小,如图4所示。
在本发明的一个实施例中,该间隙子通过采用在预定透光位置设置有不同厚度铬膜的光罩照射负性光阻形成。具体的,可以采用如图4所示的光罩21照射负性光阻来形成沿栅线的输出近端至输出远端的方向高度逐渐减小的间隙子121,如图4所示。在本发明中采用负性光阻材料来形成间隙子,负性光阻材料经曝光处理后,感光部分与未感光部分的溶解性具有明显差别。未感光部分光阻材料可以溶解掉,留下感光部分光阻材料作为间隙子。其中,光罩21上的预定透光位置对应感光部分的光阻材料。该预定透光位置设置有不同厚度的铬膜,不同厚度的铬膜的透光量不同,并且铬膜厚度越大透过的光越少。
在形成高度最大的间隙子时,该对应位置的铬膜厚度可以设置为最薄,或者不设置有铬膜(如图4所示)。然后沿栅线的输出近端至输出远端的方向,铬膜厚度依次增加。这样曝光出的间隙子靠近栅线输出近端高度最大,输出远端间隙子高度最小,最终的间隙子高度排布如图4所示。
在本发明的一个实施例中,该间隙子通过调整间隙子材料在彩膜基板上的预定位置的吐出量形成,或者间隙子通过调整用于喷射间隙子材料的喷嘴与彩膜基板上的预定位置的距离或喷嘴喷射间隙子材料的速度形成。具体的,在彩膜基板12上的预定位置涂布间隙子材料时,通过调整间隙子的吐出量,在靠近栅线的输出近端时吐出较多,最终成形的间隙子高度较高。在远离栅线输出近端时吐出量较少,最终成形的间隙子高度如图4所示。或者,在彩膜基板上的预定位置涂布间隙子材料时,通过调整涂布喷嘴与玻璃基板之间的距离或喷嘴喷射间隙子材料的速度,在靠近栅线输出近端时,距离较近或速度较慢,间隙子高度较高。在远离栅线输出近端时,距离较远或速度较小,间隙子高度较小,最终成形的间隙子高度如图4所示。
由于间隙子是用于支撑阵列基板和彩膜基板的,为保持阵列基板和彩膜基板之间的距离恒定,沿栅线的输出近端至输出远端的方向的两个端点的两个间隙子的高度差设置为不大于0.2μm,以防止影响面板画面显示。
在本发明的一个实施例中,该显示面板还包括黑矩阵。该黑矩阵设置于彩膜基板上,其中,沿栅线的输出近端至输出远端的方向,黑矩阵的厚度逐渐减小。黑矩阵一般设置在彩膜基板上,用于区隔彩膜基板上的各色阻层,并避免光电流产生。同时,间隙子也通常设置在黑矩阵上。在本发明中,沿栅线的输出近端至输出远端的方向,将黑矩阵122的厚度设置为逐渐增大,如图5所示。这样,可以使得液晶层的厚度沿栅线的输出近端至输出远端的方向逐渐增大,来使得液晶层的厚度沿栅线的输出近端至输出远端的方向逐渐减小。
在本发明的一个实施例中,该黑矩阵通过调整黑矩阵材料在彩膜基板上的预定位置的吐出量形成,或者通过调整用于喷射黑矩阵材料的喷嘴与彩膜基板上的预定位置的距离或喷嘴喷射黑矩阵材料的速度形成。具体的,可以采用涂布间隙子材料的方法来形成厚度逐渐变化的黑矩阵,此处不加详述。
在本发明的一个实施例中,该显示面板还包括阵列基板靠近液晶层一侧的第一取向层和彩膜基板靠近液晶层的一侧的第二取向层。其中,沿栅线的输出近端至输出远端的方向,第一取向层或第二取向层的厚度逐渐增大。在液晶显示面板中,通常分别在阵列基板和彩膜基板靠近液晶层的一侧各设置有一取向层123,用于对液晶层中的液晶分子进行定向取向。在本发明中,如图6所示,沿栅线的输出近端至输出远端的方向,将第一取向层的厚度或第二取向层的厚度设置为逐渐增大。取向层123的厚度越大时,则液晶的盒厚越少,进而可以使得液晶层的厚度沿栅线的输出近端至输出远端的方向逐渐减小。当然,也可以沿栅线的输出近端至输出远端的方向,将第一取向层的厚度和第二取向层的厚度同时设置为逐渐增大,本发明不限于此。
在本发明的一个实施例中,第一取向层或第二取向层通过采用设置有不同大小孔洞的印刷版将取向材料转印在阵列基板/彩膜基板上形成。通常采用APR版作为印刷版31设置在滚筒上,并将取向材料转印在阵列基板/彩膜基板上,如图7所示。APR版为一种以紫外线固化聚氨酯类树脂为原料的凸板,其表面具有孔洞,如图8所示。孔洞之间会填满取向层材料溶液,孔洞较大,则孔洞之间容纳的溶液较少;孔洞较小,则孔洞之间容纳的溶液较多。将取向层材料形成的溶液涂到APR版上,通过转印技术可以将取向层材料溶液涂布至阵列基板和彩膜基板上。
在本发明的一个实施例中,沿栅线的输出近端至输出远端的方向,印刷版上的孔洞逐渐减小。具体的,如图9所示,沿栅线的输出近端至输出远端的方向,靠近栅线的输出近端孔洞较大,容纳的取向层材料溶液较少,取向层厚度较小。靠近栅线的输出远端孔洞较小,容纳的取向层材料溶液较多,取向层厚度较大。
根据本发明的另一个方面,还提供了一种显示装置,包括以上所述的显示面板。具体的,该显示面板包括阵列基板、彩膜基板和液晶层。阵列基板上平行设置有多条栅线,液晶层设置于阵列基板和彩膜基板之间。沿栅线的输出近端至输出远端的方向,液晶层的厚度逐渐减小。
在本发明的一个实施例中,该显示面板还包括包括间隙子,间隙子设置于阵列基板和彩膜基板之间。沿栅线的输出近端至输出远端的方向,间隙子的高度逐渐减小。
在本发明的一个实施例中,该显示面板还包括黑矩阵,其设置于彩膜基板上。沿栅线的输出近端至输出远端的方向,黑矩阵的厚度逐渐减小。
在本发明的一个实施例中,该显示面板还包括分别设置于阵列基板靠近液晶层一侧的第一取向层和彩膜基板靠近液晶层的一侧的第二取向层。其中,沿栅线的输出近端至输出远端的方向,第一取向层或第二取向层的厚度逐渐增大。
虽然本发明所公开的实施方式如上,但所述的内容只是为了便于理解本发明而采用的实施方式,并非用以限定本发明。任何本发明所属技术领域内的技术人员,在不脱离本发明所公开的精神和范围的前提下,可以在实施的形式上及细节上作任何的修改与变化,但本发明的专利保护范围,仍须以所附的权利要求书所界定的范围为准。
Claims (10)
1.一种显示面板,包括:
阵列基板,其上平行设置有多条栅线;
彩膜基板;
液晶层,其设置于所述阵列基板和所述彩膜基板之间,
其中,沿所述栅线的输出近端至输出远端的方向,所述液晶层的厚度逐渐减小。
2.根据权利要求1所述的显示面板,其特征在于,还包括间隙子,其设置于所述阵列基板和所述彩膜基板之间,其中,沿所述栅线的输出近端至输出远端的方向,所述间隙子的高度逐渐减小。
3.根据权利要求2所述的显示面板,其特征在于,所述间隙子通过采用在预定透光位置设置有不同厚度铬膜的光罩照射负性光阻形成。
4.根据权利要求2所述的显示面板,其特征在于,所述间隙子通过调整间隙子材料在所述彩膜基板上的预定位置的吐出量形成,或者所述间隙子通过调整用于喷射间隙子材料的喷嘴与所述彩膜基板上的预定位置的距离或喷嘴喷射间隙子材料的速度形成。
5.根据权利要求1所述的显示面板,其特征在于,还包括黑矩阵,其设置于所述彩膜基板上,其中,沿所述栅线的输出近端至输出远端的方向,所述黑矩阵的厚度逐渐增大。
6.根据权利要求5所述的显示面板,其特征在于,所述黑矩阵通过调整黑矩阵材料在所述彩膜基板上的预定位置的吐出量形成,或者通过调整用于喷射黑矩阵材料的喷嘴与所述彩膜基板上的预定位置的距离或喷嘴喷射黑矩阵材料的速度形成。
7.根据权利要求1所述的显示面板,其特征在于,还包括分别设置于所述阵列基板靠近所述液晶层一侧的第一取向层和所述彩膜基板靠近所述液晶层的一侧的第二取向层,
其中,沿所述栅线的输出近端至输出远端的方向,所述第一取向层或所述第二取向层的厚度逐渐增大。
8.根据权利要求7所述的显示面板,其特征在于,所述第一取向层/所述第二取向层通过采用设置有不同大小孔洞的印刷版将取向材料转印在所述阵列基板/所述彩膜基板上形成。
9.根据权利要求8所述的显示面板,其特征在于,沿所述栅线的输出近端至输出远端的方向,所述印刷版上的孔洞逐渐减小。
10.一种显示装置,包括权利要求1-9中任一项所述的显示面板。
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