CN104298016A - 一种阵列基板及其制备方法、显示面板和显示装置 - Google Patents

一种阵列基板及其制备方法、显示面板和显示装置 Download PDF

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CN104298016A
CN104298016A CN201410592096.5A CN201410592096A CN104298016A CN 104298016 A CN104298016 A CN 104298016A CN 201410592096 A CN201410592096 A CN 201410592096A CN 104298016 A CN104298016 A CN 104298016A
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peripheral wire
pierced pattern
array base
peripheral
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艾雨
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BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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Priority to PCT/CN2015/075113 priority patent/WO2016065829A1/zh
Priority to US14/769,072 priority patent/US10048542B2/en
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Abstract

本发明公开了一种阵列基板及其制备方法、显示面板和显示装置，以解决现有技术中阵列基板的外围导线影响显示面板中封框胶固化，导致的所述封框胶固化不良、影响显示面板的产品良率的问题。所述阵列基板，包括衬底基板，形成所述衬底基板上的阵列区和外围导线区，所述外围导线区内的外围导线具有多个镂空图案，所述外围导线的未镂空图案的相邻边缘所能围设的遮挡区域中所能划定的圆形区域的最大直径为第一阈值，每一条所述外围导线的所述镂空图案的总面积为第二阈值，且所述外围导线的电阻率的范围为0～2.83×10-8Ω·m。

Description

一种阵列基板及其制备方法、显示面板和显示装置
技术领域
本发明涉及液晶显示技术领域，尤其涉及一种阵列基板及其制备方法、显示面板和显示装置。
背景技术
显示面板的窄边框技术是目前的发展趋势。在显示面板制备过程的对盒工艺中，在彩膜基板和阵列基板之间设置封框胶，使封框胶固化后即可使彩膜基板和阵列基板粘接。在彩膜基板上设置有黑矩阵，会完全遮挡封框胶，紫外光无法透过，通常利用紫外光由阵列基板一侧照射封框胶并使封框胶固化，从而使彩膜基板和阵列基板粘接固定。
但是，在现在技术中，由于阵列基板的外围导线区的金属导线较宽，较宽的金属线可能遮挡封框胶，在利用紫外光由阵列基板一侧照射时，紫外光可能无法透过或无法完全透过，使封框胶无法完全固化。在后续的热固化阶段，未固化封框胶4会变成液体流出，从而造成显示面板不良。
发明内容
本发明的目的是提供一种阵列基板及其制备方法、显示面板和显示装置，以解决现有技术中阵列基板的外围导线影响显示面板中封框胶固化，导致的所述封框胶固化不良、影响显示面板的产品良率的问题。
本发明的目的是通过以下技术方案实现的：
本发明实施例提供一种阵列基板，包括衬底基板，形成所述衬底基板上的阵列区和外围导线区，所述外围导线区内的外围导线具有多个镂空图案，所述外围导线的未镂空图案的相邻边缘所能围设的遮挡区域中所能划定的圆形区域的最大直径为第一阈值，每一条所述外围导线的所述镂空图案的总面积为第二阈值，且所述外围导线的电阻率的范围为0～2.83×10-8Ω·m。本发明实施例中，所述外围导线的所述镂空图案能够使紫外光透过，且所述镂空图案的总面积为第二阈值，所述外围导线的连续的未镂空图案所能遮挡的圆形区域的最大直径为第一阈值，使得透过镂空图案的紫外光能够完全固化相邻所述外围导线的未镂空图案所遮挡的所述封框胶，从而使整个所述外围导线遮挡的所述封框胶均能被完全固化；所述外围导线的电阻率的范围为0～2.83×10-8Ω·m，能够使具有所述条状矩形的镂空图案的所述外围导线的电阻符合电信号的传输要求。
优选的，所述第一阈值为45～55um，所述第二阈值为所述镂空图案所在的所述外围导线自身面积的26％～50％。
优选的，所述外围导线的材料为铜或银。本发明实施例中，以铜或银作为所述外围导线的材料，能够使所述外围导线即使被镂空大部分区域，其电阻仍然能够符合电信号的传输要求。
优选的，所述镂空图案的图形为矩形、三角形或梯形。
优选的，所述镂空图案为条状矩形的镂空图案，每一条所述外围导线的各所述镂空图案具有与该外围导线相同的延伸方向。
优选的，所述阵列区包括薄膜晶体管TFT，所述外围导线形成于所述TFT的栅电极所在的金属层。本发明实施例中，所述外围导线和所述栅电极同层设置，以减少所述阵列基板的制备工序。
本发明实施例有益效果如下：所述外围导线的所述镂空图案能够使紫外光透过，且所述镂空图案的总面积为第二阈值，所述外围导线的连续的未镂空图案所能遮挡的圆形区域的最大直径为第一阈值，使得透过镂空图案的紫外光能够完全固化相邻所述外围导线的未镂空图案所遮挡的所述封框胶，从而使整个所述外围导线遮挡的所述封框胶均能被完全固化；所述外围导线的电阻率的范围为0～2.83×10-8Ω·m，能够使具有所述条状矩形的镂空图案的所述外围导线的电阻符合电信号的传输要求。
本发明实施例提供一种显示面板，包括如上实施例提供的所述阵列基板。
优选的，所述显示面板还包括彩膜基板和封框胶，所述封框胶设置于所述彩膜基板和所述阵列基板之间；
所述阵列基板的部分所述外围导线与所述封框胶位置对应；
所述彩膜基板的朝向所述阵列基板的一侧，设置有与所述封框胶位置对应的黑矩阵，所述黑矩阵完全遮挡所述封框胶。
优选的，所述封框胶的宽度范围为0.8～1.2mm。
本发明实施例有益效果如下：阵列基板的所述外围导线的所述镂空图案能够使紫外光透过，且所述镂空图案的总面积为第二阈值，所述外围导线的连续的未镂空图案所能遮挡的圆形区域的最大直径为第一阈值，使得透过镂空图案的紫外光能够完全固化相邻所述外围导线的未镂空图案所遮挡的所述封框胶，从而使整个所述外围导线遮挡的所述封框胶均能被完全固化；所述外围导线的电阻率的范围为0～2.83×10-8Ω·m，能够使具有所述条状矩形的镂空图案的所述外围导线的电阻符合电信号的传输要求。
本发明实施例提供一种显示装置，包括如上实施例提供的显示面板。
本发明实施例有益效果如下：阵列基板的所述外围导线的所述镂空图案能够使紫外光透过，且所述镂空图案的总面积为第二阈值，所述外围导线的连续的未镂空图案所能遮挡的圆形区域的最大直径为第一阈值，使得透过镂空图案的紫外光能够完全固化相邻所述外围导线的未镂空图案所遮挡的所述封框胶，从而使整个所述外围导线遮挡的所述封框胶均能被完全固化；所述外围导线的电阻率的范围为0～2.83×10-8Ω·m，能够使具有所述条状矩形的镂空图案的所述外围导线的电阻符合电信号的传输要求。
本发明实施例提供一种阵列基板的制备方法，包括：
提供一衬底基板；
采用电阻率的范围为0～2.83×10-8Ω·m的金属材料在所述衬底基板上形成一金属薄膜，通过构图工艺在阵列区形成TFT的栅电极，在外围导线区形成外围导线，所述外围导线区内的外围导线具有多个镂空图案，所述外围导线的未镂空图案的相邻边缘所能围设的遮挡区域中所能划定的圆形区域的最大直径为第一阈值，每一条所述外围导线的所述镂空图案的总面积为第二阈值。
优选的，所述第一阈值为45～55um，所述第二阈值为所述镂空图案所在的所述外围导线自身面积的26％～50％。
本发明实施例有益效果如下：通过在阵列基板的所述外围导线的所述镂空图案能够使紫外光透过，且所述镂空图案的总面积为第二阈值，所述外围导线的连续的未镂空图案所能遮挡的圆形区域的最大直径为第一阈值，使得透过镂空图案的紫外光能够完全固化相邻所述外围导线的未镂空图案所遮挡的所述封框胶，从而使整个所述外围导线遮挡的所述封框胶均能被完全固化；所述外围导线的电阻率的范围为0～2.83×10-8Ω·m，能够使具有所述条状矩形的镂空图案的所述外围导线的电阻符合电信号的传输要求。
附图说明
图1为现有技术中封框胶固化之前的显示面板的剖面示意图；
图2为现有技术中封框胶经紫外固化之后的显示面板的剖面示意图；
图3A至图3C为本发明实施例提供的外围导线的俯视结构示意图；
图4本发明实施例提供的一种阵列基板的局部俯视示意图；
图5本发明实施例提供的一种阵列基板的局部剖面示意图；
图6本发明实施例中封框胶固化之前的显示面板的剖面示意图；
图7本发明实施例中封框胶经紫外固化之后的显示面板的剖面示意图；
图8本发明实施例提供的一种阵列基板的制备方法的流程图。
具体实施方式
下面结合说明书附图对本发明实施例的实现过程进行详细说明。需要注意的是，自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
实施例一
本发明实施例提供一种阵列基板，包括衬底基板，形成衬底基板上的阵列区和外围导线区，外围导线区内的外围导线具有多个镂空图案，外围导线的未镂空图案的相邻边缘所能围设的遮挡区域中所能划定的圆形区域的最大直径为第一阈值，每一条外围导线的镂空图案的总面积为第二阈值，且外围导线的电阻率的范围为0～2.83×10-8Ω·m。
如图1所示的显示面板对盒过程中紫外光固化封框胶之前的示意图，包括相对设置的阵列基板1和彩膜基板2，阵列基板1与彩膜基板2相对的一侧设置外围导线5，彩膜基板2与阵列基板1相对的一侧设置黑矩阵3，阵列基板1和彩膜基板2通过未固化封框胶4粘接，且黑矩阵3完全遮挡未固化封框胶4，外围导线5也完全遮档或部分遮挡未固化封框胶4。图2所示，为显示面板对盒过程中紫外光固化封框胶之后的示意图(附图标记与图1相同)，虽然外围导线5遮挡的紫外光7，但是仍然有部分未固化封框胶4被延伸固化，该延伸固化的最小宽度W。即在紫外光固化后，形成固化的封框胶6和部分未固化封框胶4。本发明实施例中，基于图1和图2进行改进，使外围导线的镂空图案能够使紫外光透过，且外围导线的连续的未镂空图案所能遮挡的圆形区域的最大直径小于或等于第一阈值，因此镂空图案能够使透过的紫外光完全固化相邻外围导线的未镂空图案所遮挡的封框胶，从而使整个外围导线遮挡的封框胶均能被完全固化；外围导线的电阻率小于或等于铝的电阻率，能够使具有条状矩形的镂空图案的外围导线的电阻符合电信号的传输要求。
外围导线的未镂空图案的相邻边缘所能围设的遮挡区域中所能划定的圆形区域的最大直径可以为小于或等于55um的任意数值，以满足封框胶固化的要求。为了使外围导线具有较理想的电阻并具有一定的强度，优选的，第一阈值为45～55um，第二阈值为镂空图案所在的外围导线自身面积的26％～50％。本实施例中，外围导线的未镂空图案的相邻边缘所能围设的遮挡区域中所能划定的圆形区域的最大直径为45～55um，每一条外围导线的镂空图案的总面积为该外围导线的面积的26％～50，能够确保紫外光透过镂空图案后，完全固化外围导线的未镂空所遮挡的封框胶。
优选的，外围导线的材料为铜或银。本发明实施例中，以铜或银作为外围导线的材料，能够使外围导线即使被镂空大部分区域，其电阻仍然能够符合电信号的传输要求。
镂空图案的图形可以任意图形。优选的，镂空图案的图形为矩形、三角形或梯形。如图3A至图3C所示的外围导线13，其具有镂空图案131，该镂空图案131可以为矩形、三角形或梯形，外围导线13的未镂空图案为132。外围导线13的未镂空图案为132符合如下条件：外围导线13的未镂空图案132的相邻边缘所能围设的遮挡区域中所能划定的圆形区域133的最大直径为第一阈值，也可以理解为连续的未镂空图案132所能遮挡的圆形区域的最大直径为第一阈值，第一阈值可以视为利用紫外光(不限于紫外光)固化的封框胶，紫外光未直接照射到未固化的封框胶的情况下所延伸固化的最小宽度W，该最小宽度W如图2所示。需要说明的是，图3A至图3C所示的外围导线13所具有镂空图案131，仅是为了进行说明，满足“外围导线13的未镂空图案132的相邻边缘所能围设的遮挡区域中所能划定的圆形区域133的最大直径为第一阈值”这一条件时，镂空图案131的图形、图形的面积可以进行变化，相应的各镂空图案131的布局也可以进行变化，在此不再赘述。
优选的，阵列区包括薄膜晶体管TFT，外围导线形成于TFT的栅电极所在的金属层。本发明实施例中，外围导线和栅电极同层设置，以减少阵列基板的制备工序。
本发明实施例有益效果如下：外围导线的镂空图案能够使紫外光透过，且镂空图案的总面积为第二阈值，外围导线的连续的未镂空图案所能遮挡的圆形区域的最大直径为第一阈值，使得透过镂空图案的紫外光能够完全固化相邻外围导线的未镂空图案所遮挡的封框胶，从而使整个外围导线遮挡的封框胶均能被完全固化；外围导线的电阻率的范围为0～2.83×10-8Ω·m，能够使具有条状矩形的镂空图案的外围导线的电阻符合电信号的传输要求。
实施例二
为了更清楚的描述该阵列基板，以镂空图案为条状矩形的镂空图案为例进行说明如下：
参见图4，本发明实施例提供一种阵列基板100，包括衬底基板1，形成衬底基板1上的阵列区12和外围导线区11，外围导线区11内的外围导线13具有多个条状矩形的镂空图案134，各条状矩形的镂空图案134之间的部分如未镂空图案135所示，每一外围导线13的条状矩形的镂空图案134的总面积大于第二阈值，该第二阈值为条状矩形的镂空图案134所在的外围导线13自身面积的26％～50％。
条状矩形的镂空图案134具有与外围导线13相同的延伸方向，且相邻的条状矩形的镂空图案134之间的距离可以小于55um，但是基于外围导线13的电阻的考虑，优选为45～50um，此种情况下：符合未镂空图案的相邻边缘所能围设的遮挡区域中所能划定的圆形区域的最大直径为第一阈值。如图5所示，为图4中阵列基板100在AB处的剖面示意图，衬底基板1上的各条状矩形的镂空图案134之间的未镂空图案135的宽度W(即相邻的条状矩形的镂空图案134之间的距离)小于或等于55um，例如为45um、48um或50um。本发明实施例中，外围导线13的条状矩形的镂空图案134能够使紫外光透过，且间距小于或等于55um的相邻条状矩形的镂空图案134能够使紫外光完全固化相邻条状矩形的镂空图案134之间的封框胶，从而使整个外围导线13遮挡的封框胶均能被完全固化。
外围导线13的电阻率小于或等于2.83×10-8Ω。本发明实施例中，外围导线13的电阻率小于或等于2.83×10-8Ω，能够使具有条状矩形的镂空图案134的外围导线13的电阻符合电信号的传输要求。优选的，外围导线13的材料可以为铜或银。其中，铜的电阻率为1.75×10-8Ω·m，银的阻率为1.65×10-8Ω·m，即使外围导线13被镂空大部分区域，其电阻仍然能够符合电信号的传输要求。
优选的，阵列区11包括薄膜晶体管TFT(未示出)，外围导线13形成于TFT的栅电极所在的金属层。本发明实施例中，外围导线13和栅电极同层设置，以减少阵列基板的制备工序。
本发明实施例有益效果如下：外围导线的镂空图案能够使紫外光透过，且镂空图案的总面积为第二阈值，外围导线的连续的未镂空图案所能遮挡的圆形区域的最大直径为第一阈值，使得透过镂空图案的紫外光能够完全固化相邻外围导线的未镂空图案所遮挡的封框胶，从而使整个外围导线遮挡的封框胶均能被完全固化；外围导线的电阻率的范围为0～2.83×10-8Ω·m，能够使具有条状矩形的镂空图案的外围导线的电阻符合电信号的传输要求。
实施例三
本发明实施例提供一种显示面板，包括如上实施例提供的阵列基板100。
以图4所示的阵列基板100为例进行对显示面板进行说明，如下：
参见图6，示出了封框胶固化之前的显示面板的剖面示意图，其中，显示面板包括相对设置的阵列基板100和彩膜基板200，详细说明如下：
阵列基板100包括衬底基板1和形成于衬底基板1上的外围导线13，外围导线13具有多个条状矩形的镂空图案134，各条状矩形的镂空图案134之间的部分如未镂空图案135所示，每一外围导线13的条状矩形的镂空图案134的总面积为外围导线自身面积的26％～50％。条状矩形的镂空图案134具有与外围导线13相同的延伸方向，且相邻的条状矩形的镂空图案134之间的距离小于或等于55um。同时，外围导线的电阻率小于或等于铝的电阻率。
彩膜基板200包括衬底基板1和形成于衬底基板1上的黑矩阵3。
阵列基板100和彩膜基板200之间设置未固化封框胶4，阵列基板100的部分外围导线13与未固化封框胶4位置对应，即外围导线13遮档了未固化封框胶4，当然，外围导线13足够宽时，阵列基板100的部分外围导线13与未固化封框胶4位置对应也可以理解为外围导线13的部分导线与未固化封框胶4位置对应；黑矩阵3设置于彩膜基板200的朝向阵列基板100的一侧，黑矩阵3完全遮挡未固化封框胶4。
参见图7，示出了封框胶被紫外光7照射固化之后的显示面板的剖面示意图(附图标记与图6相同含义)，紫外光7由外围导线13的条状矩形的镂空图案134透过，并使图6中未固化封框胶4完全固化形成封框胶6。
优选的，上述图6或图7中所示的未固化封框胶4或封框胶6的宽度范围为0.8～1.2mm。
当然，镂空图案为三角形或梯形时，具有相似的结构，在此不再赘述。
本发明实施例有益效果如下：外围导线的镂空图案能够使紫外光透过，且镂空图案的总面积为第二阈值，外围导线的连续的未镂空图案所能遮挡的圆形区域的最大直径为第一阈值，使得透过镂空图案的紫外光能够完全固化相邻外围导线的未镂空图案所遮挡的封框胶，从而使整个外围导线遮挡的封框胶均能被完全固化；外围导线的电阻率的范围为0～2.83×10-8Ω·m，能够使具有条状矩形的镂空图案的外围导线的电阻符合电信号的传输要求。
实施例四
本发明实施例提供一种显示装置，包括如上实施例提供的显示面板。
本发明实施例有益效果如下：阵列基板的外围导线的镂空图案能够使紫外光透过，且镂空图案的总面积为第二阈值，外围导线的连续的未镂空图案所能遮挡的圆形区域的最大直径为第一阈值，使得透过镂空图案的紫外光能够完全固化相邻外围导线的未镂空图案所遮挡的封框胶，从而使整个外围导线遮挡的封框胶均能被完全固化；外围导线的电阻率的范围为0～2.83×10-8Ω·m，能够使具有条状矩形的镂空图案的外围导线的电阻符合电信号的传输要求。
实施例五
参见图8，本发明实施例提供一种阵列基板的制备方法，包括：
401，提供一衬底基板。
402，采用电阻率的范围为0～2.83×10-8Ω·m的金属材料在衬底基板上形成一金属薄膜，通过构图工艺在阵列区形成TFT的栅电极，在外围导线区形成外围导线，外围导线区内的外围导线具有多个镂空图案，外围导线的未镂空图案的相邻边缘所能围设的遮挡区域中所能划定的圆形区域的最大直径为第一阈值，每一条外围导线的镂空图案的总面积为第二阈值。
优选的，第一阈值为45～55um，第二阈值为镂空图案所在的外围导线自身面积的26％～50％。
本发明实施例有益效果如下：通过在阵列基板的外围导线的镂空图案能够使紫外光透过，且镂空图案的总面积为第二阈值，外围导线的连续的未镂空图案所能遮挡的圆形区域的最大直径为第一阈值，使得透过镂空图案的紫外光能够完全固化相邻外围导线的未镂空图案所遮挡的封框胶，从而使整个外围导线遮挡的封框胶均能被完全固化；外围导线的电阻率的范围为0～2.83×10-8Ω·m，能够使具有条状矩形的镂空图案的外围导线的电阻符合电信号的传输要求。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (12)

1.一种阵列基板，包括衬底基板，形成所述衬底基板上的阵列区和外围导线区，其特征在于，所述外围导线区内的外围导线具有多个镂空图案，所述外围导线的未镂空图案的相邻边缘所能围设的遮挡区域中所能划定的圆形区域的最大直径为第一阈值，每一条所述外围导线的所述镂空图案的总面积为第二阈值，且所述外围导线的电阻率的范围为0～2.83×10-8Ω·m。
2.如权利要求1所述的阵列基板，其特征在于，所述第一阈值为45～55um，所述第二阈值为所述镂空图案所在的所述外围导线自身面积的26％～50％。
3.如权利要求2所述的阵列基板，其特征在于，所述外围导线的材料为铜或银。
4.如权利要求1至3任一项所述的阵列基板，其特征在于，所述镂空图案的图形为矩形、三角形或梯形。
5.如权利要求4所述的阵列基板，其特征在于，所述镂空图案为条状矩形的镂空图案，每一条所述外围导线的各所述镂空图案具有与该外围导线相同的延伸方向。
6.如权利要求1所述的阵列基板，其特征在于，所述阵列区包括薄膜晶体管TFT，所述外围导线形成于所述TFT的栅电极所在的金属层。
7.一种显示面板，其特征在于，包括如权利要求1至6任一项所述的阵列基板。
8.如权利要求7所述的显示面板，其特征在于，所述显示面板还包括彩膜基板和封框胶，所述封框胶设置于所述彩膜基板和所述阵列基板之间；
所述阵列基板的至少部分所述外围导线与所述封框胶位置对应；
所述彩膜基板的朝向所述阵列基板的一侧，设置有与所述封框胶位置对应的黑矩阵，所述黑矩阵完全遮挡所述封框胶。
9.如权利要求8所述的显示面板，其特征在于，所述封框胶的宽度范围为0.8～1.2mm。
10.一种显示装置，其特征在于，包括如权利要求7至9任一项所述的显示面板。
11.一种阵列基板的制备方法，其特征在于，包括：
提供一衬底基板；
采用电阻率的范围为0～2.83×10-8Ω·m的金属材料在所述衬底基板上形成一金属薄膜，通过构图工艺在阵列区形成TFT的栅电极，在外围导线区形成外围导线，所述外围导线区内的外围导线具有多个镂空图案，所述外围导线的未镂空图案的相邻边缘所能围设的遮挡区域中所能划定的圆形区域的最大直径为第一阈值，每一条所述外围导线的所述镂空图案的总面积为第二阈值。
12.如权利要求11所述的方法，其特征在于，所述第一阈值为45～55um，所述第二阈值为所述镂空图案所在的所述外围导线自身面积的26％～50％。
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