CN106094376A - 一种阵列基板以及液晶显示器 - Google Patents
一种阵列基板以及液晶显示器 Download PDFInfo
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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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
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Abstract
本发明公开了一种阵列基板以及液晶显示器,该阵列基板包括:基板,包括显示区域和非显示区域;多条扫描线,设置于显示区域上;多条基板走线,设置于非显示区域上,多条基板走线分别与多条扫描线连接,栅极驱动器通过基板走线向扫描线提供扫描信号;其中,栅极驱动器向多条基板走线提供一定输出推力的扫描信号,且至少部分基板走线被提供的扫描信号的输出推力不同,以使扫描信号经过多条基板走线的RC延迟相等。通过上述方式,本发明能够避免显示画面因扫描信号的RC延迟不同造成的颜色或亮度不均匀的现象,提高了显示画面的质量。
Description
技术领域
本发明涉及显示技术领域,特别是涉及一种阵列基板以及液晶显示器。
背景技术
TFT-LCD(thin film transistor-liquid crystal display,薄膜晶体管液晶显示器)技术是微电子技术与液晶显示器技术巧妙结合的一种技术。人们利用在Si(硅)上进行微电子精细加工的技术,移植到在大面积玻璃上进行TFT阵列的加工,再将该阵列基板与另一片带彩色滤色膜的基板,利用与业已成熟的LCD技术,形成一个液晶盒相结合,再经过后工序如偏光片贴覆等过程,最后形成液晶显示器。
随着显示技术的迅速发展,TFT-LCD液晶面板边框要求愈来愈窄,分辨率愈来愈高,在规格愈来愈高的情况下,却希望成本愈来愈低。在栅极驱动器数量减少,面板边框又窄的情况下,增加了扇出(Fan out)时的难度。当制程参数(例如膜厚)变动或基板走线(Wire ON Array,WOA)阻抗匹配不佳的情况下会造成显示器的亮度或颜色显示不均匀,俗称Mura。
发明内容
本发明主要解决的技术问题是提供一种阵列基板以及液晶显示器,能够避免显示画面因扫描信号的RC延迟不同造成的颜色或亮度不均匀的现象,提高了显示画面的质量。
为解决上述技术问题,本发明采用的一个技术方案是:提供一种阵列基板,该阵列基板包括:基板,包括显示区域和非显示区域;多条扫描线,设置于显示区域上;多条基板走线,设置于非显示区域上,多条基板走线分别与多条扫描线连接,栅极驱动器通过基板走线向扫描线提供扫描信号;其中,栅极驱动器向多条基板走线提供一定输出推力的扫描信号,且至少部分基板走线被提供的扫描信号的输出推力不同,以使扫描信号经过多条基板走线的RC延迟相等。
其中,一个栅极驱动器通过多条基板走线分别向对应的多条扫描线提供扫描信号;其中,多条基板走线沿栅极驱动器到扫描线的方向发散分布,多条基板走线中,栅极驱动器向越靠近边缘的基板走线提供的扫描信号的输出推力越大。
其中,栅极驱动器向基板走线提供的扫描信号的输出推力,与基板走线的阻抗呈正相关。
其中,栅极驱动器向基板走线提供的扫描信号的输出推力,与基板走线对应的栅极驱动器与扫描线之间的距离呈正相关。
其中,输出推力是栅极驱动器输出的电流的输出缓冲驱动能力,输出缓冲驱动能力与输出波形上升沿或下降沿的时间呈负相关。
其中,栅极驱动器的至少部分输出通道对应的放大器的数量不同,以使栅极驱动器的至少部分那输出通道提供的输出推力不同。
其中,多条扫描线横向设置于显示区域上;阵列基板还包括多条纵向设置于显示区域的数据线,多条扫描线和多条数据线在显示区域定义多个像素区域;阵列基板还包括多个开关元件,分别设置于多个像素区域,开关元件与扫描线和数据线连接。
其中,开关元件为薄膜晶体管。
为解决上述技术问题,本发明采用的另一个技术方案是:提供一种液晶显示器,该液晶显示器包括显示面板和背光模组,显示面板包括阵列基板、彩膜基板以及阵列基板和彩膜基板之间的液晶层;其中,阵列基板包括:基板,包括显示区域和非显示区域;多条扫描线,设置于显示区域上;多条基板走线,设置于非显示区域上,多条基板走线分别与多条扫描线连接,栅极驱动器通过基板走线向扫描线提供扫描信号;其中,栅极驱动器向多条基板走线提供一定输出推力的扫描信号,且至少部分基板走线被提供的扫描信号的输出推力不同,以使扫描信号经过多条基板走线的RC延迟相等。
其中,一个栅极驱动器通过多条基板走线分别向对应的多条扫描线提供扫描信号;其中,多条基板走线沿栅极驱动器到扫描线的方向发散分布,多条基板走线中,栅极驱动器向越靠近边缘的基板走线提供的扫描信号的输出推力越大。
其中,栅极驱动器向基板走线提供的扫描信号的输出推力,与基板走线的阻抗呈正相关。
其中,栅极驱动器向基板走线提供的扫描信号的输出推力,与基板走线对应的栅极驱动器与扫描线之间的距离呈正相关。
其中,输出推力是栅极驱动器输出的电流的输出缓冲驱动能力,输出缓冲驱动能力与输出波形上升沿或下降沿的时间呈负相关。
其中,栅极驱动器的至少部分输出通道对应的放大器的数量不同,以使栅极驱动器的至少部分那输出通道提供的输出推力不同。
其中,多条扫描线横向设置于显示区域上;阵列基板还包括多条纵向设置于显示区域的数据线,多条扫描线和多条数据线在显示区域定义多个像素区域;阵列基板还包括多个开关元件,分别设置于多个像素区域,开关元件与扫描线和数据线连接。
其中,开关元件为薄膜晶体管。
本发明的有益效果是:区别于现有技术的情况,本发明的阵列基板包括:基板,包括显示区域和非显示区域;多条扫描线,设置于显示区域上;多条基板走线,设置于非显示区域上,多条基板走线分别与多条扫描线连接,栅极驱动器通过基板走线向扫描线提供扫描信号;其中,栅极驱动器向多条基板走线提供一定输出推力的扫描信号,且至少部分基板走线被提供的扫描信号的输出推力不同,以使扫描信号经过多条基板走线的RC延迟相等。通过上述方式,能够通过调整提供给基板走线的扫描信号的输出推力,减小阻抗较大的基板走线的RC延迟,使每个基板走线所对应的扫描线能够同时进行充电,避免显示画面因扫描信号的RC延迟不同产生颜色或亮度不均匀的现象,提高了显示画面的质量。
附图说明
图1是本发明阵列基板一实施方式的结构示意图;
图2是本发明阵列基板一实施方式中一个像素区域的示意图;
图3是本发明阵列基板一实施方式中基板走线的局部示意图;
图4是本发明阵列基板一实施方式中输出推力的对比示意图;
图5是本发明液晶显示器一实施方式的结构示意图。
具体实施方式
参阅图1,图1是本发明阵列基板一实施方式的结构示意图,该阵列基板包括:
基板11,包括显示区域111和非显示区域112。
可选的,该基板11的材料可以是透明玻璃或者透明塑料。
多条扫描线12,设置于显示区域111上。可选的,多条扫描线12横向设置于显示区域111上。
多条基板走线13,设置于非显示区域112上,多条基板走线13分别与多条扫描线12连接,栅极驱动器14通过基板走线13向扫描线12提供扫描信号。
可选的,阵列基板还包括多条纵向设置于显示区域111的数据线15,多条扫描线12和多条数据线15在显示区域111定义多个像素区域。
可以理解的,上述的扫描线12、基板走线13以及数据线15一般设置于基板11上的各膜层之间,这些膜层可以是绝缘层、钝化层、平坦层、有机层、无机层、半导体层、金属层等等。
另外,图1中的扫描线12、基板走线13、栅极驱动器14、数据线15的数量仅为示意,并不限制本实施方式的数量。
具体参阅图2,阵列基板还包括多个开关元件15,分别设置于多个像素区域,开关元件15与扫描线12和数据线15连接。具体地,开关元件15为薄膜晶体管,其栅极连接扫描线12,其源极连接数据线15,其漏极连接像素电极(图未示)。
由于显示技术的发展,对液晶面板的边框要求也严格,现在一般要求显示面板的边框为窄边框,因此需要减少栅极驱动器14的数量和大小,这样,就要求一个栅极驱动器14需要对应给更多的扫描线12提供扫描信号。
基于上述原因,在现有技术中,连接栅极驱动器14和扫描线12的基板走线13呈扇出(fan out)结构,即基板走线13的输入端紧密排列,而输出端则发散开来。但是栅极驱动器14距离扫描线12的水平距离是不变的,因此,部分基板走线13的长度的不同的,即靠近边缘的基板走线13的长度大于靠近中央的基板走线13的长度。
这样,就会导致不同的基板走线13的阻抗不同,从而导致不同基板走线13对扫描信号带来的RC延迟(电阻-电容延迟)不同,使显示器的亮度或颜色显示不均匀,造成Mura现象。
在本实施方式中,参阅图3,其中,空心箭头表示电流的输出推力,且箭头越大,输出推力越大。
具体地,栅极驱动器14向多条基板走线13提供一定输出推力的扫描信号,且至少部分基板走线13被提供的扫描信号的输出推力不同,以使扫描信号经过多条基板走线13的RC延迟相等。
其中,输出(output)推力是栅极驱动器输出的电流的输出缓冲(output buffer)驱动能力,输出缓冲驱动能力与输出波形上升沿或下降沿的时间呈负相关。
具体参阅图4,a和b均为时钟扫描信号,其中,a信号由低电平到高电平(即上升沿)的时间为t1,b信号由低电平到高电平的时间为t2,可以看出,t1的时间小于t2,则a信号的输出缓冲驱动能力大于b信号。
结合图3和图4,虽然基板走线13的长度各不相同,即基板走线13的阻抗不同,通过加大阻抗较大的基板走线13的输入信号的输出推力,对阻抗较大的基板走线13进行反向补偿,使得阻抗较大的基板走线13所对应的扫描线在充电时也能快速上升到高电平,从而减小了RC延迟。
可选的,一个栅极驱动器14通过多条基板走线13分别向对应的多条扫描线12提供扫描信号;其中,多条基板走线13沿栅极驱动器14到扫描线12的方向发散分布,多条基板走线13中,栅极驱动器14向越靠近边缘的基板走线13提供的扫描信号的输出推力越大。
如图3所示,栅极驱动器14向较长的基板走线13提供的扫描信号的输出推力较大,向较短的基板走线13提供的扫描信号的输出推力较小。
可选的,栅极驱动器14向基板走线13提供的扫描信号的输出推力,与基板走线13的阻抗呈正相关。或者
栅极驱动器14向基板走线13提供的扫描信号的输出推力,与基板走线13对应的栅极驱动器14与扫描线12之间的距离呈正相关。
具体地,可以通过调整栅极驱动器14不同通道的放大器的数量或放大器的放大倍数以对栅极驱动器14不同通道的输出推力进行调节,例如栅极驱动器14的至少部分输出通道对应的放大器的数量不同,以使栅极驱动器的至少部分那输出通道提供的输出推力不同。
区别于现有技术,本实施方式的阵列基板包括:基板,包括显示区域和非显示区域;多条扫描线,设置于显示区域上;多条基板走线,设置于非显示区域上,多条基板走线分别与多条扫描线连接,栅极驱动器通过基板走线向扫描线提供扫描信号;其中,栅极驱动器向多条基板走线提供一定输出推力的扫描信号,且至少部分基板走线被提供的扫描信号的输出推力不同,以使扫描信号经过多条基板走线的RC延迟相等。通过上述方式,能够通过调整提供给基板走线的扫描信号的输出推力,减小阻抗较大的基板走线的RC延迟,使每个基板走线所对应的扫描线能够同时进行充电,避免显示画面因扫描信号的RC延迟不同产生颜色或亮度不均匀的现象,提高了显示画面的质量。
参阅图5,图5是本发明液晶显示器一实施方式的结构示意图,该液晶显示器包括显示面板51和背光模组52,显示面板51包括阵列基板511、彩膜基板512以及阵列基板511和彩膜基板512之间的液晶层513。
其中,阵列基板511包括:
基板,包括显示区域和非显示区域;多条扫描线,设置于显示区域上;多条基板走线,设置于非显示区域上,多条基板走线分别与多条扫描线连接,栅极驱动器通过基板走线向扫描线提供扫描信号;其中,栅极驱动器向多条基板走线提供一定输出推力的扫描信号,且至少部分基板走线被提供的扫描信号的输出推力不同,以使扫描信号经过多条基板走线的RC延迟相等。
具体地,该阵列基板511是如以上各种实施方式所述的阵列基板,其结构以及工作原理均与上述实施方式类似,可以参考上述实施方式的说明以及附图,这里不再赘述。
以上所述仅为本发明的实施方式,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。
Claims (10)
1.一种阵列基板,其特征在于,包括:
基板,包括显示区域和非显示区域;
多条扫描线,设置于所述显示区域上;
多条基板走线,设置于所述非显示区域上,所述多条基板走线分别与所述多条扫描线连接,栅极驱动器通过所述基板走线向所述扫描线提供扫描信号;
其中,所述栅极驱动器向所述多条基板走线提供一定输出推力的扫描信号,且至少部分所述基板走线被提供的扫描信号的输出推力不同,以使所述扫描信号经过所述多条基板走线的RC延迟相等。
2.根据权利要求1所述的阵列基板,其特征在于,
一个所述栅极驱动器通过多条基板走线分别向对应的多条扫描线提供扫描信号;
其中,所述多条基板走线沿所述栅极驱动器到所述扫描线的方向发散分布,所述多条基板走线中,所述栅极驱动器向越靠近边缘的基板走线提供的扫描信号的输出推力越大。
3.根据权利要求2所述的阵列基板,其特征在于,
所述栅极驱动器向基板走线提供的扫描信号的输出推力,与所述基板走线的阻抗呈正相关。
4.根据权利要求2所述的阵列基板,其特征在于,
所述栅极驱动器向基板走线提供的扫描信号的输出推力,与所述基板走线对应的栅极驱动器与扫描线之间的距离呈正相关。
5.根据权利要求1-4任一项所述的阵列基板,其特征在于,
所述输出推力是所述栅极驱动器输出的电流的输出缓冲驱动能力,所述输出缓冲驱动能力与输出波形上升沿或下降沿的时间呈负相关。
6.根据权利要求1所述的阵列基板,其特征在于,
所述栅极驱动器的至少部分输出通道对应的放大器的数量不同,以使所述栅极驱动器的至少部分那输出通道提供的输出推力不同。
7.根据权利要求1所述的阵列基板,其特征在于,
多条所述扫描线横向设置于所述显示区域上;
所述阵列基板还包括多条纵向设置于所述显示区域的数据线,多条扫描线和多条数据线在所述显示区域定义多个像素区域;
所述阵列基板还包括多个开关元件,分别设置于所述多个像素区域,所述开关元件与所述扫描线和所述数据线连接。
8.根据权利要求7所述的阵列基板,其特征在于,
所述开关元件为薄膜晶体管。
9.一种液晶显示器,其特征在于,包括显示面板和背光模组,所述显示面板包括阵列基板、彩膜基板以及所述阵列基板和所述彩膜基板之间的液晶层;
其中,所述阵列基板包括:
基板,包括显示区域和非显示区域;
多条扫描线,设置于所述显示区域上;
多条基板走线,设置于所述非显示区域上,所述多条基板走线分别与所述多条扫描线连接,栅极驱动器通过所述基板走线向所述扫描线提供扫描信号;
其中,所述栅极驱动器向所述多条基板走线提供一定输出推力的扫描信号,且至少部分所述基板走线被提供的扫描信号的输出推力不同,以使所述扫描信号经过所述多条基板走线的RC延迟相等。
10.根据权利要求9所述的液晶显示器,其特征在于,所述阵列基板是如权利要求2-8任一项所述的阵列基板。
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CN108877544A (zh) * | 2018-06-29 | 2018-11-23 | 上海天马有机发光显示技术有限公司 | 一种显示面板及电子设备 |
CN110085156A (zh) * | 2019-04-12 | 2019-08-02 | 深圳市华星光电半导体显示技术有限公司 | 阵列基板驱动电路及驱动方法 |
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CN114333697B (zh) * | 2021-12-30 | 2023-04-07 | 深圳市华星光电半导体显示技术有限公司 | 显示装置 |
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