CN104375299B - 具阵列背板线路架构的液晶显示装置 - Google Patents
具阵列背板线路架构的液晶显示装置 Download PDFInfo
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Abstract
本发明公开一种具阵列背板线路架构的液晶显示装置。所述液晶显示装置包含多个驱动集成电路单元、多个第一导线组和第二导线组。所述的驱动集成电路单元间隔排列于所述液晶显示装置的主动区外围的周边线路区上;所述第一导线组和第二导线组交替连接于每两所述驱动集成电路单元之间。所述第一导线组设有一传导结构以连接一共享电极。所述第一导线组和第二导线组交替设置的方式有助于窄边框的实现。
Description
【技术领域】
本发明是有关于液晶显示装置,特别是有关于一种具阵列背板线路架构的液晶显示装置。
【背景技术】
液晶显示器具有体积小、重量轻、低电压驱动、低消耗功率及应用范围广等优点,已成为显示器的主流。为使薄膜晶体管液晶显示器面板更为轻薄,业者发展出阵列背板线路(Wire on Array,WOA)技术,其将扫描驱动侧的线路直接设置于液晶面板的玻璃基板上来与栅极驱动集成电路连接。藉此,可省略印刷电路板的使用,降低液晶显示器的成本。
请参考图1所示,上述的阵列背板线路大致由三种导线组成:一、提供彩色滤光基板端的共享电极电压的共通线J;二、给集成电路芯片的驱动电压(如栅极驱动电压)的传导线K;三、给集成电路芯片提供工作讯号(如输出致能讯号或时序脉冲信号)的传导线L。液晶面板的边框宽度很大一部分是由阵列背板线路的宽度决定的,即图1中的宽度d。
在上述的阵列背板线路的三种传导线中,传导线K要求的阻值低,以避免影响信号爬升和幅值;相对地,传导线L的阻值可以较高。由于提供彩色滤光基板端的共用电极电压的共通线J必须通过传导结构T电连接到相对侧的彩色滤光基板上的共用电极,共通线J的线宽必须匹配传导结构的尺寸;一个传导结构T的尺寸宽度约900毫米,意味着共通线J的线宽至少需要900毫米以上,可占据整个阵列背板线路的三分之一宽度。由于传导线K的阻值有最低要求,所以不能通过无限缩减阵列背板线路的传导线来减小液晶面板的边框宽度。
故,随着窄框化的设计趋势兴起,有必要提供一种具阵列背板线路架构的液晶显示装置,以解决现有技术所存在的问题。
【发明内容】
有鉴于现有技术的缺点,本发明的主要目的在于提供一种具阵列背板线路架构的液晶显示装置,其阵列背板线路架构可达到相较于现有技术更狭窄的非可视区域,使液晶面板的边宽范围更为缩减。
为达成本发明的前述目的,本发明提供一种液晶显示装置,包括:一主动区;一周边线路区,围绕所述主动区;多个驱动集成电路单元,间隔排列于所述周边线路区的至少一侧;以及多个第一导线组和第二导线组,交替连接于每两驱动集成电路单元之间,其中所述第一导线组设有一传导结构以连接一共用电极,所述第一导线组与所述第二导线组皆包括一A类导线、B类导线和C类导线;所述第一导线组的A类导线与所述第二导线组的A类导线的线宽比值为;所述第一导线组的B类导线与所述第二导线组的B类导线的线宽比值为1;所述第一导线组的C类导线与所述第二导线组的C类导线的线宽比值为;或者所述第一导线组的A类导线与所述第二导线组的A类导线的线宽比值为2;所述第一导线组的B类导线与所述第二导线组的B类导线的线宽比值为0.25;所述第一导线组的C类导线与所述第二导线组的C类导线的线宽比值为0.25。
在本发明的一实施例中,所述液晶显示装置包含相对设置的薄膜晶体管阵列基板和彩色滤光基板;所述驱动集成电路单元设置于所述薄膜晶体管阵列基板上;所述共用电极设置于所述彩色滤光基板上。
在本发明的一实施例中,所述A类导线是用以提供共用电极的参考电压;所述B类导线是用以提供来自驱动集成电路单元的开关电压;所述C类导线是用以提供来自驱动集成电路单元的时序讯号。
在本发明的一实施例中,所述薄膜晶体管阵列基板上设有多条扫描线、数据线、共通线和多个排列成阵列的薄膜晶体管,每一薄膜晶体管连接一像素电极,所述像素电极与对应的共通线构成储存电容,并与设置于所述彩色滤光基板上的所述共用电极构成液晶电容。
在本发明的一实施例中,所述传导结构为导电银胶。
本发明主要是利用两包含特定线宽导线的导线组以交替设置于驱动集成电路单元之间的方式来构成阵列背板线路架构,该架构可有效缩减外围线路整体的宽度,使液晶面板的非可视区域更为缩减。
【附图说明】
图1是现有阵列背板线路的组成示意图。
图2是本发明具阵列背板线路架构的液晶显示装置一较佳实施例的结构示意图。
图3是液晶显示装置的每一像素的等效电路图。
图4是本发明的阵列背板线路架构的第一导线组的组成示意图。
图5是本发明的阵列背板线路架构的第二导线组的组成示意图。
【具体实施方式】
为让本发明上述目的、特征及优点更明显易懂,下文特举本发明较佳实施例,并配合附图,作详细说明如下。再者,本发明所提到的方向用语,例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等,仅是参考附加图式的方向。因此,使用的方向用语是用以说明及理解本发明,而非用以限制本发明。
请参考图2所示,图2是本发明具阵列背板线路架构的液晶显示装置一较佳实施例的结构示意图。所述液晶显示装置1主要由一第一基板10、一第二基板(未绘示)以及一配置于此两基板间的液晶层所构成。所述第一基板10与所述第二基板相对设置,可分别为薄膜晶体管阵列基板和彩色滤光基板。
所述第一基板10,作为一薄膜晶体管阵列基板,可包含主动区10a(active area,又可称为显示区)以及围绕主动区10a的周边线路区10b(peripheral circuit area,又可称为非显示区),其中主动区10a内配置有多条扫描线、数据线、共通线和多个排列成阵列的薄膜晶体管,每一薄膜晶体管连接一像素电极,所述像素电极与对应的共通线构成储存电容。所述第一基板10上的扫描线、数据线、薄膜晶体管和像素电极即构成一像素阵列。所述像素阵列包含多个像素单元,每个像素单元皆包括一薄膜晶体管以及与此薄膜晶体管连接的像素电极,且每个像素单元都被两条相邻的扫描线以及两条相邻的数据线包围。
所述第二基板(未绘示),作为一传统的彩色滤光基板,可设有由红、绿、蓝光刻胶组成的彩色滤光层和共用电极。所述第一基板10上的像素电极在工作期间与所述共用电极构成液晶电容,以控制液晶分子的旋转。
如图2所示,所述第一基板10在周边线路区10b设有多个驱动集成电路单元20以及多个第一导线组30和第二导线组31。在本实施例中,所述驱动集成电路单元20,21是间隔排列于所述周边线路区10b的至少一侧。一般而言,所述驱动集成电路单元20是通过玻璃上芯片技术(Chip on Glass,COG)直接接合于薄膜晶体管阵列基板上。依照像素阵列的扫描线(栅极线)和数据线的配置,所述周边线路区10b在所述主动区10a的不同侧可包含栅极驱动电路接合区(Gate Driving Circuit Bonding Area)及数据驱动电路接合区(DataDriving Circuit Bonding Area)。所述驱动集成电路单元20,21即分布于所述接合区上。例如,在本实施例中,部分的驱动集成电路单元20分布在所述主动区10a一侧的栅极驱动电路接合区,部分的驱动集成电路单元21分布在所述主动区10a另一侧的数据驱动电路接合区。
如图2所示,所述第一导线组30和第二导线组31也是设置于所述第一基板10(薄膜晶体管阵列基板)的周边线路区10b上,且在所述周边线路区10b的其中一侧,所述第一导线组30和第二导线组31是交替连接于每两驱动集成电路单元20之间。
进一步参考图4和图5所示,在本实施例中,所述第一导线组30和第二导线组31皆包括一A类导线、B类导线和C类导线,其中所述A类导线主要是用以提供所述共用电极的参考电压;所述C类导线主要是用以提供来自所述驱动集成电路单元20的时序讯号;所述B类导线主要是用以提供来自所述驱动集成电路单元20的开关电压,故其阻值相对其他导线更要求低阻值的电性需求。
所述第一导线组30和第二导线组31的差别在于,所述第一导线组30进一步设有一传导结构T1,以通过传导结构T1电性连接上述第二基板(彩色滤光基板)上的共用电极,其中所述传导结构T1可以是导电银胶或其他类似的导电材料;再者,所述第一导线组30和第二导线组31的导线宽度也不同,例如,在本实施例中,第一导线组30的A类导线与所述第二导线组31的A类导线的线宽比值介于1~1.5之间;所述第一导线组30的B类导线与所述第二导线组31的B类导线的线宽比值为1;所述第一导线组30的C类导线与所述第二导线组31的C类导线的线宽比值介于之间。优选地,所述第一导线组30的A类导线与所述第二导线组31的A类导线的线宽比值为意即所述第一导线组30的A类导线的线宽比所述第二导线组31的A类导线的线宽多了倍;所述第一导线组30的B类导线与所述第二导线组31的B类导线的线宽比值为1,意即两者线宽相同;所述第一导线组30的C类导线与所述第二导线组31的C类导线的线宽比值为意即所述第一导线组30的C类导线的线宽比所述第二导线组31的C类导线的线宽少了倍。通过上述的线宽配置,所述第一导线组30和第二导线组31所构成的阵列背板线路架构,其总体的线宽最大将可减少倍,同时还能够确保B类导线的阻值不变,避免影响B类导线的信号爬升和幅值。因此,所述第一导线组30和第二导线组31所构成的阵列背板线路架构能够在不影响电性功能的情形下,有效使上述周边线路区10b的区域范围更为缩减。
在另一实施例中,所述第一导线组30的A类导线与所述第二导线组31的A类导线的线宽比值可介于1~2之间;所述第一导线组30的B类导线与所述第二导线组31的B类导线的线宽比值可介于0.25~1之间;所述第一导线组30的C类导线与所述第二导线组31的C类导线的线宽比值可介于0.25~1之间。优选地,所述第一导线组30的A类导线与所述第二导线组31的A类导线的线宽比值为2;所述第一导线组30的B类导线与所述第二导线组31的B类导线的线宽比值为0.25;所述第一导线组30的C类导线与所述第二导线组31的C类导线的线宽比值为0.25。通过上述的线宽配置,所述第一导线组30和第二导线组31所构成的阵列背板线路架构除了能让总体线宽缩减之外,也同样能够保证整阵列背板线路架构的B类导线和C类导线的阻值不变,进而在不影响B类导线电性功能的情形下,有效使上述周边线路区10b的区域范围更为缩减。
请同时参考图2和图3所示,当所述液晶显示装置1处于正常显示状态时,像素电极信号由数据线Dn通过薄膜晶体管Tn打开后供给;存储电极信号通过主动区10a外围的外围共通线100供给到连接所述外围共通线100(如图2)的阵列共通线A-com,所述阵列共通线A-com进而和像素电极(未绘示)之间形成存储电容(Cst)。位于彩色滤光基板(即所述第二基板)的共用电极(未绘示)所需的参考电压则由所述第一导线组30的A类导线(作为图3中的共通线CF-com)通过传导结构32供给,彩色滤光基板端的共用电极与像素电极之间形成液晶电容(Clc)。
由上述说明可知,相较于现有技术的缺失,本发明利用两包含特定线宽导线的导线组以交替设置于驱动集成电路单元之间的方式来构成阵列背板线路架构,该架构可有效缩减外围线路整体的宽度,使液晶面板的非可视区域更为缩减。
本发明已由上述相关实施例加以描述,然而上述实施例仅为实施本发明的范例。必需指出的是,已公开的实施例并未限制本发明的范围。相反地,包含于权利要求书的精神及范围的修改及均等设置均包括于本发明的范围内。
Claims (5)
1.一种液晶显示装置,其特征在于:包含:
一主动区;
一周边线路区,围绕所述主动区;
多个驱动集成电路单元,间隔排列于所述周边线路区的至少一侧;以及
多个第一导线组和第二导线组,交替连接于每两驱动集成电路单元之间,其中所述第一导线组设有一传导结构以连接一共用电极,所述第一导线组与所述第二导线组皆包括一A类导线、B类导线和C类导线;所述第一导线组的A类导线与所述第二导线组的A类导线的线宽比值为所述第一导线组的B类导线与所述第二导线组的B类导线的线宽比值为1;所述第一导线组的C类导线与所述第二导线组的C类导线的线宽比值为或者所述第一导线组的A类导线与所述第二导线组的A类导线的线宽比值为2;所述第一导线组的B类导线与所述第二导线组的B类导线的线宽比值为0.25;所述第一导线组的C类导线与所述第二导线组的C类导线的线宽比值为0.25。
2.如权利要求1所述的液晶显示装置,其特征在于:所述液晶显示装置包含相对设置的薄膜晶体管阵列基板和彩色滤光基板;所述驱动集成电路单元设置于所述薄膜晶体管阵列基板上;所述共用电极设置于所述彩色滤光基板上。
3.如权利要求1项所述的液晶显示装置,其特征在于:所述A类导线是用以提供共用电极的参考电压;所述B类导线是用以提供来自驱动集成电路单元的开关电压;所述C类导线是用以提供来自驱动集成电路单元的时序讯号。
4.如权利要求2所述的液晶显示装置,其特征在于:所述薄膜晶体管阵列基板上设有多条扫描线、数据线、共通线和多个排列成阵列的薄膜晶体管,每一薄膜晶体管连接一像素电极,所述像素电极与对应的共通线构成储存电容,并与设置于所述彩色滤光基板上的所述共用电极构成液晶电容。
5.如权利要求2所述的液晶显示装置,其特征在于:所述传导结构为导电银胶。
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