CN113820891B - Tft基板、液晶显示面板、显示模组及电子设备 - Google Patents
Tft基板、液晶显示面板、显示模组及电子设备 Download PDFInfo
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Abstract
本申请实施例提供一种TFT基板、液晶显示面板、显示模组及电子设备。本申请实施例提供的TFT基板,通过将预设电极和公共电极设置为与同一个线路接头连接,可以使外部电源经由线路接头向预设电极和公共电极中输入相同的电压信号,在这种情况下,即使预设电极和公共电极之间出现短路的情况,预设电极上的电压信号和公共电极上的电压信号也会保持相同,从而能够避免由于预设电极上的电压信号被拉低而导致的显示屏出现垂直渐变线等异常显示情况。另外,通过将预设电极和公共电极设置为连接同一个线路接头,还可以减少预设电极的电压信号输入和公共电极的电压信号输入所需要的总的走线设计,有利于降低TFT基板的生产成本。
Description
技术领域
本申请涉及显示技术领域,特别涉及一种TFT基板、液晶显示面板、显示模组及电子设备。
背景技术
在显示技术领域,液晶显示器(Liquid Crystal Display,LCD)与有机发光二极管显示器(Organic Light Emitting Diode,OLED)等平板显示器已经逐步取代CRT显示器。
通常液晶显示装置包括壳体、设于壳体内的液晶显示面板及设于壳体内的背光模组(Backlight module)。其中,液晶显示面板的结构主要是由两片玻璃基板以及配置于两片玻璃基板间的液晶层(Liquid Crystal Layer)所构成,其工作原理是通过施加驱动电压来控制液晶层的液晶分子的旋转,将背光模组的光线折射出来产生画面。
现有的液晶显示面板为了扩大面板视角,增加对比度,通常采用sharebar(预设电极)设计,即Pixel(像素)分main-Pixel(主像素)和Sub-Pixel(子像素),通过Sharebar拉低Sub-Pixel的电压。由于Sharebar下方设置有Array com(阵列基板侧的公共电极),因此当有Sharebar与Array com之间存在异物时,Sharebar与Array com之间容易发生短路,由于Array com上的电压信号通常低于Sharebar上的电压信号,因此当Sharebar与Array com发生短路时通常会导致Sharebar上的电压信号被拉低,进而导致液晶显示面板上出现垂直渐变线等异常显示情况。
发明内容
本申请实施例提供一种TFT基板、液晶显示面板、显示模组及电子设备,以解决公共电极和预设电极短路时出现的异常显示问题。
第一方面,本申请实施例提供一种TFT基板,所述TFT基板的显示区域设有多个像素,所述像素包括主像素区和子像素区;
所述主像素区设有第一晶体管,所述子像素区设有第二晶体管、第三晶体管以及预设电极,所述第三晶体管的源极与所述第二晶体管的漏极连接,所述第三晶体管的漏极与所述预设电极连接;
所述TFT基板还包括公共电极和线路接头,所述公共电极对应多个所述像素设置,所述预设电极和所述公共电极均与所述线路接头连接,所述线路接头用于向所述预设电极和所述公共电极中引入相同的电压信号。
在一些实施例中,所述线路接头、所述预设电极以及所述公共电极之间设有第一导线、第二导线、第三导线,所述第一导线具有相对设置的第一端和第二端,所述第二导线具有相对设置的第三端和第四端,所述第三导线具有相对设置的第五端和第六端;
所述第一导线的所述第一端连接所述线路接头,所述第二导线的所述第三端连接所述预设电极,所述第三导线的所述第五端连接所述公共电极,所述第一导线的所述第二端、所述第二导线的所述第四端以及所述第三导线的所述第六端连接在一起。
在一些实施例中,所述TFT基板包括依次层叠设置的衬底基板、第一金属层、第一绝缘层、半导体层以及第二金属层;其中,所述第一金属层包括间隔设置的栅极和公共电极;所述第二金属层包括间隔设置的源极、漏极以及预设电极。
在一些实施例中,所述半导体层包括沟道区以及分别位于所述沟道区两侧的源极接触区和漏极接触区,所述沟道区包括非晶硅层,所述源极接触区和所述漏极接触区均包括层叠设置的非晶硅层和N型掺杂非晶硅层。
在一些实施例中,所述TFT基板还包括设于所述第二绝缘层背离所述第二金属层一侧的彩色滤光层以及设于所述彩色滤光层背离所述第二绝缘层一侧的保护层。
在一些实施例中,所述保护层的材料包括可溶性聚四氟乙烯。
第二方面,本申请实施例提供一种液晶显示面板,所述液晶显示面板包括相对设置的TFT基板与第一基板以及设于所述TFT基板与所述第一基板之间的液晶层,所述TFT基板为上述TFT基板。
第三方面,本申请实施例提供一种显示模组,所述显示模组包括上述液晶显示面板。
在一些实施例中,所述显示模组还包括触控屏,所述触控屏与所述液晶显示面板层叠设置。
第三方面,本申请实施例提供一种电子设备,所述电子设备包括上述显示模组。
本申请实施例提供的TFT基板,通过将预设电极和公共电极设置为与同一个线路接头连接,可以使外部电源经由线路接头向预设电极和公共电极中输入相同的电压信号,在这种情况下,即使预设电极和公共电极之间出现短路的情况,预设电极上的电压信号和公共电极上的电压信号也会保持相同,从而能够避免由于预设电极上的电压信号被拉低而导致的显示屏出现垂直渐变线等异常显示情况。另外,通过将预设电极和公共电极设置为连接同一个线路接头,与现有技术相比,还可以减少预设电极的电压信号输入和公共电极的电压信号输入所需要的总的走线设计,有利于降低TFT基板的生产成本,提升产能,并且由于TFT基板的外围走线减少,还可以降低外围线路发生不良的概率,有利于提升TFT基板的生产良率。
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他的附图。
图1为本申请实施例提供的TFT基板中的部分结构的连接示意图。
图2为本申请实施例提供的TFT基板的剖视结构示意图。
图3为本申请实施例提供的液晶显示面板的剖视结构示意图。
图4为本申请实施例提供的显示模组的剖视结构示意图。
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做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。
请参阅图1与图2,图1为本申请实施例提供的TFT基板中的部分结构的连接示意图,图2为本申请实施例提供的TFT基板的剖视结构示意图。本申请实施例提供一种TFT(Thin Film Transistor,薄膜晶体管)基板110,TFT基板110的显示区域设有多个像素,像素包括主像素区和子像素区。
主像素区设有第一晶体管,子像素区设有第二晶体管、第三晶体管以及预设电极(Sharebar)225,第三晶体管的源极与第二晶体管的漏极连接,第三晶体管的漏极与预设电极225连接。可以理解的是,通过在子像素区中设置第三晶体管,将该子像素区的部分电压释放到预设电极225上,以实现主像素区和子像素区的电压不同,进而使主像素区和子像素区之间产生液晶分子转动角度的差异,以改善视角和增加对比度。示例性地,在一个像素中,主像素区的电压信号高于子像素区的电压信号,因此当该TFT基板110应用于液晶显示面板100中时,子像素区的亮度小于主像素区的亮度。
请结合图1,TFT基板110还包括公共电极(Array com)215和线路接头70,公共电极215对应多个像素设置,预设电极225和公共电极215均与线路接头70连接,线路接头70用于向预设电极225和公共电极215中引入相同的电压信号。
可以理解的是,线路接头70可以用于连接外部电源或者外部线路,外部电源或者外部线路可以向线路接头70中输入电压信号,从而使电压信号可以经由线路接头70传输至预设电极225和公共电极215中。
可以理解的是,TFT基板110包括显示区域和非显示区域,线路接头70设置在非显示区域中,因此线路接头70、预设电极225以及公共电极215之间的连接导线的一部分位于非显示区域中,即属于外围走线的一部分。
示例性地,线路接头70可以为金属片或金属块。在一些实施例中,线路接头70的材料可以包括钼(Mo)、铝(Al)、铜(Cu)、钛(Ti)、钨(W)、铬(Cr)、镍(Ni)中的一种或多种。
可以理解的是,TFT基板110上还设有像素电极(未图示),像素电极与公共电极215之间具有电压差,该电压差用于驱动液晶分子转动。
本申请实施例提供的TFT基板110,通过将预设电极225和公共电极215设置为与同一个线路接头70连接,可以使外部电源经由线路接头70向预设电极225和公共电极215中输入相同的电压信号,在这种情况下,即使预设电极225和公共电极215之间有异物存在导致出现短路的情况,预设电极225上的电压信号和公共电极215上的电压信号也会保持相同,从而能够避免由于预设电极225上的电压信号被拉低而导致的显示屏出现垂直渐变线等异常显示情况。另外,通过将预设电极225和公共电极215设置为连接同一个线路接头70,与现有技术相比,还可以减少预设电极225的电压信号输入和公共电极215的电压信号输入所需要的总的走线设计,有利于降低TFT基板110的生产成本,提升产能,并且由于TFT基板110的外围走线减少,还可以降低外围线路发生不良的概率,有利于提升TFT基板110的生产良率。
请结合图1,线路接头70、预设电极225以及公共电极215之间可以设置第一导线81、第二导线82、第三导线83,第一导线81具有相对设置的第一端和第二端,第二导线82具有相对设置的第三端和第四端,第三导线83具有相对设置的第五端和第六端;
第一导线81的第一端连接线路接头70,第二导线82的第三端连接预设电极225,第三导线83的第五端连接公共电极215,第一导线81的第二端、第二导线82的第四端以及第三导线83的第六端连接在一起。
请结合图2,TFT基板110可以包括依次层叠设置的衬底基板10、第一金属层21、第一绝缘层31、半导体层40、第二金属层22以及第二绝缘层32;其中,第一金属层21包括间隔设置的栅极和公共电极215;第二金属层22包括间隔设置的源极、漏极以及预设电极225。
示例性地,多个像素可以呈阵列排布,每一列像素中设置的预设电极225可以连接在一起,或者每一行像素中设置的预设电极225可以连接在一起。
示例性地,衬底基板10可以为玻璃基板。
示例性地,第一金属层21的材料可以包括钼(Mo)、铝(Al)、铜(Cu)、钛(Ti)、钨(W)、铬(Cr)、镍(Ni)中的一种或多种。
示例性地,第一绝缘层31的材料可以包括氧化硅(SiOx)与氮化硅(SiNx)中的一种或多种。
示例性地,第二金属层22的材料可以包括钼(Mo)、铝(Al)、铜(Cu)、钛(Ti)、钨(W)、铬(Cr)、镍(Ni)中的一种或多种。
示例性地,第二绝缘层32的材料可以包括氧化硅(SiOx)与氮化硅(SiNx)中的一种或多种。
示例性地,半导体层40可以包括沟道区以及分别位于沟道区两侧的源极接触区和漏极接触区,沟道区包括非晶硅(a-Si)层,源极接触区和漏极接触区均包括层叠设置的非晶硅层和N型掺杂非晶硅层。可以理解的是,N型掺杂指的是向非晶硅中掺杂五价元素,例如磷、砷等。
请结合图2,TFT基板110还可以包括设于第二绝缘层32背离第二金属层22一侧的彩色滤光层50以及设于彩色滤光层50背离第二绝缘层32一侧的保护层60。
示例性地,彩色滤光层50可以包括红色滤光片、绿色滤光片、蓝色滤光片,白色背光分别穿过红色滤光片、绿色滤光片、蓝色滤光片后形成的红光、绿光、蓝光按照不同比例和强弱混合后,可以产生各种色彩变化。
示例性地,保护层60的材料可以包括可溶性聚四氟乙烯(PFA)。保护层60可以保护彩色滤光层50以及TFT基板110内部的其它结构层。
在一些实施例中,线路接头70可以设置在衬底基板10的非显示区域的表面,例如,将线路接头70设置在衬底基板10上设有TFT器件的一侧表面。
请参阅图3,图3为本申请实施例提供的液晶显示面板的剖视结构示意图。本申请实施例还提供一种液晶显示面板100,液晶显示面板100可以包括相对设置的TFT基板110与第一基板120以及设于TFT基板110与第一基板120之间的液晶层130,TFT基板110可以为上述任一实施例中的TFT基板110。
示例性地,第一基板120可以为玻璃基板。
请参阅图4,图4为本申请实施例提供的显示模组的剖视结构示意图。本申请实施例还提供一种显示模组200,显示模组200可以包括上述任一实施例中的液晶显示面板100。
显示模组200还可以包括触控屏210,触控屏210与液晶显示面板100层叠设置。
示例性地,触控屏210可以设置在液晶显示面板100的出光面一侧,触控屏210可以用于检测触摸信息,并将触摸信息转换成触点坐标传送给CPU(central processing unit,中央处理器),同时能接收CPU发来的命令并加以执行。
示例性地,显示模组200还可以包括背光模组,背光模组可以设置在液晶显示面板100的入光面一侧。
本申请实施例还提供一种电子设备,电子设备可以包括上述任一实施例中的显示模组200。
示例性地,电子设备可以是电视、手机、平板电脑、台式电脑、游戏设备、增强现实(Augmented Reality,AR)设备、虚拟现实(Virtual Reality,VR)设备、数据存储装置、音频播放装置、视频播放装置、可穿戴设备等具有显示屏的设备,其中可穿戴设备可以是智能手环、智能眼镜、智能手表、智能装饰等。
以上对本申请实施例提供的TFT基板、液晶显示面板、显示模组及电子设备进行了详细介绍。本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请。同时,对于本领域的技术人员,依据本申请的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本申请的限制。
Claims (9)
1.一种TFT基板,其特征在于,所述TFT基板的显示区域设有多个像素,所述像素包括主像素区和子像素区;
所述主像素区设有第一晶体管,所述子像素区设有第二晶体管、第三晶体管以及预设电极,所述第三晶体管的源极与所述第二晶体管的漏极连接,所述第三晶体管的漏极与所述预设电极连接;
所述TFT基板还包括公共电极和线路接头,所述公共电极对应多个所述像素设置,所述预设电极和所述公共电极均与所述线路接头连接,所述线路接头用于向所述预设电极和所述公共电极中引入相同的电压信号;
所述TFT基板包括依次层叠设置的衬底基板、第一金属层、第一绝缘层、半导体层、第二金属层以及第二绝缘层;其中,所述第一金属层包括间隔设置的栅极和公共电极;所述第二金属层包括间隔设置的源极、漏极以及预设电极。
2.根据权利要求1所述的TFT基板,其特征在于,所述线路接头、所述预设电极以及所述公共电极之间设有第一导线、第二导线、第三导线,所述第一导线具有相对设置的第一端和第二端,所述第二导线具有相对设置的第三端和第四端,所述第三导线具有相对设置的第五端和第六端;
所述第一导线的所述第一端连接所述线路接头,所述第二导线的所述第三端连接所述预设电极,所述第三导线的所述第五端连接所述公共电极,所述第一导线的所述第二端、所述第二导线的所述第四端以及所述第三导线的所述第六端连接在一起。
3.根据权利要求1所述的TFT基板,其特征在于,所述半导体层包括沟道区以及分别位于所述沟道区两侧的源极接触区和漏极接触区,所述沟道区包括非晶硅层,所述源极接触区和所述漏极接触区均包括层叠设置的非晶硅层和N型掺杂非晶硅层。
4.根据权利要求1所述的TFT基板,其特征在于,所述TFT基板还包括设于所述第二绝缘层背离所述第二金属层一侧的彩色滤光层以及设于所述彩色滤光层背离所述第二绝缘层一侧的保护层。
5.根据权利要求4所述的TFT基板,其特征在于,所述保护层的材料包括可溶性聚四氟乙烯。
6.一种液晶显示面板,其特征在于,包括相对设置的TFT基板与第一基板以及设于所述TFT基板与所述第一基板之间的液晶层,所述TFT基板为如权利要求1-5中任一项所述的TFT基板。
7.一种显示模组,其特征在于,包括如权利要求6所述的液晶显示面板。
8.根据权利要求7所述的显示模组,其特征在于,还包括触控屏,所述触控屏与所述液晶显示面板层叠设置。
9.一种电子设备,其特征在于,包括如权利要求7或8所述的显示模组。
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CN109154750A (zh) * | 2016-05-17 | 2019-01-04 | 夏普株式会社 | 液晶显示装置 |
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