CN113782559B - 导电模组及显示装置 - Google Patents

导电模组及显示装置 Download PDF

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CN113782559B
CN113782559B CN202111075476.8A CN202111075476A CN113782559B CN 113782559 B CN113782559 B CN 113782559B CN 202111075476 A CN202111075476 A CN 202111075476A CN 113782559 B CN113782559 B CN 113782559B
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display device
conductive
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CN113782559A (zh
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范佳铭
陈伯纶
陈俊达
林柏青
许雅筑
涂晋益
黄国峰
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Interface Optoelectronics Shenzhen Co Ltd
Interface Technology Chengdu Co Ltd
General Interface Solution Ltd
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Interface Optoelectronics Shenzhen Co Ltd
Interface Technology Chengdu Co Ltd
Yecheng Optoelectronics Wuxi Co Ltd
General Interface Solution Ltd
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Priority to TW110136561A priority patent/TWI814097B/zh
Priority to US17/538,093 priority patent/US11625078B2/en
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Abstract

本申请提供一种导电模组，包括：多个导电结构；以及至少一连接线，每相邻两个导电结构之间电连接一所述连接线；每一连接线包括电连接的接触部和延伸部，所述接触部电连接于一所述导电结构和所述延伸部之间，所述延伸部可拉伸以使得所述导电模组可拉伸，在所述延伸部延伸的平面上，所述接触部为正方形，所述延伸部的线宽与所述接触部的边长相等。本申请还提供一种显示装置。

Description

导电模组及显示装置
技术领域
本申请涉及柔性导电技术领域，尤其涉及一种导电模组及包括该导电模组的显示装置。
背景技术
电子装置例如穿戴显示器、曲面触控装置等，在使用时会产生一定程度的形变。上述电子装置通常包括可拉伸的导电结构以实现形变。该可拉伸的导电结构通常电连接不可拉伸的导电结构。可拉伸的导电结构与不可拉伸的导电结构的交界处易因拉伸应力断裂，导致电路断路。
发明内容
本申请一方面提供一种导电模组，包括：
多个导电结构；以及
至少一连接线，每相邻两个导电结构之间电连接一所述连接线；
每一连接线包括电连接的接触部和延伸部，所述接触部电连接于一所述导电结构和所述延伸部之间，所述延伸部可拉伸以使得所述导电模组可拉伸，在所述延伸部延伸的平面上，所述接触部为正方形，所述延伸部的线宽与所述接触部的边长相等。
本申请另一方面提供一种导电模组，包括：
多个导电结构；两相邻的所述导电结构界定一非拉伸区域；以及
至少一连接线，每相邻两个导电结构之间电连接一所述连接线，以界定一拉伸区域；
每一连接线包括电连接的接触部和延伸部，所述接触部电连接于一所述导电结构和所述延伸部之间，所述延伸部可拉伸以使得所述导电模组可拉伸，在所述延伸部延伸的平面上，所述接触部为正方形，所述延伸部的线宽与所述接触部的边长相等；
其中，所述接触部的两条相邻的边分别电连接延伸部和一所述导电结构；
所述延伸部与所述接触部连接处的位置具有一切线，所述接触部与所述导电结构连接的边所在的直线定义为接触线，所述切线与所述接触线之间的夹角小于30°，所述的延伸部位于所述拉伸区域。
本申请另一方面进一步提供一种显示装置，包括如上述的导电模组，所述导电模组用于接收驱动信号以驱动所述显示装置显示图像。
上述导电模组，在延伸部延伸的平面上，接触部为一边长等于延伸部线宽的正方形，接触部相邻的两个边分别连接导电结构和延伸部，由于接触部的边长与延伸部线宽相等，接触部的尺寸与延伸部的尺寸相适应，则当延伸部被拉伸时，接触部与延伸部交界处的应力较小，不易引起连接线断裂，因此接触部使得导电结构与连接线的连接强度提升。
附图说明
图1为本申请实施例的显示装置的一平面结构示意图。
图2为本申请实施例的显示装置的另一平面结构示意图。
图3为图2中导电结构与连接线的一平面结构示意图。
图4为图2中导电结构与连接线的另一平面结构示意图。
图5为一对比例中导电结构与连接线的结构示意图。
图6为图2中导电结构与连接线的另一平面结构示意图。
图7为本申请一变更实施例中导电结构与连接线的平面结构示意图。
图8为另一对比例中导电结构与连接线的结构示意图。
主要元件符号说明
显示装置 100
像素 11
导电结构 12
连接线 13、23、33
接触部 131、331
延伸部 132、332
拉伸力 F
切线 L1
接触线 L2
导电模组 10
如下具体实施方式将结合上述附图进一步说明本申请。
具体实施方式
请参阅图1，本实施例的显示装置100用于显示图像。显示装置100可为发光二极管显示器、有机发光显示器、液晶显示器等。本实施例中显示装置100为发光二极管显示器。显示装置100包括多个像素11。该多个像素11排列为包括多行和多列的阵列。每个像素11内具有一颗发光二极管(Light-emitting Diode,LED)。各个像素11内的LED分别被驱动发光，以使得显示装置100显示图像。
请参阅图2，显示装置100包括多个导电结构12。每一像素11内具有一导电结构12。也即，多个导电结构12与多个像素11一一对应。多个导电结构12也排列为包括多行和多列的阵列。本实施例中，每一导电结构12为像素11内的LED的电极。于其他实施例中，例如当显示装置100为液晶显示器时，每一导电结构12可为像素电极。于其他实施例中，导电结构12也可不位于像素11内，例如导电结构12可为芯片的端子，位于显示装置100的非显示区。
显示装置100还包括多条连接线13。每一连接线13位于相邻的两个导电结构12之间，用于建立相邻两个导电结构12之间的电连接。每一行中的每两个相邻导电结构12之间具有一连接线13，且每一列中的每两个相邻导电结构12之间具有一连接线13。本实施例中，连接同一行导电结构12的连接线13用于传输栅极驱动信号，连接同一列导电结构12的连接线13用于传输数据信号。显示装置100用于根据该栅极驱动信号和该数据信号显示图像。
请一并参阅图2和图3，每一连接线13包括依次电连接的接触部131和延伸部132。每一接触部131电连接于一导电结构12和延伸部132之间，使得导电结构12和延伸部132电连接。本实施例中，每一连接线13包括两个接触部131和一延伸部132。延伸部132电连接于两个接触部131之间。两个接触部131分别用于电连接一导电结构12。
本实施例的显示装置100中，导电结构12为刚性材料，不可拉伸。本实施例的显示装置100中，连接线13也为刚性材料。通过设置延伸部132整体为波浪状(例如正弦波状)，使得延伸部132可拉伸。在显示装置100受到拉伸力时，导电结构12和接触部131几乎不产生形变，而延伸部132可产生形变。通过设置导电结构12和接触部131不可拉伸且延伸部132可拉伸，使得显示装置100整体表现为可拉伸的状态。因此，显示装置100中任意相邻两个导电结构12之间的区域(也即排布有连接线13的区域)可定义为显示装置100的拉伸区域，而显示装置100中设置有导电结构12的区域则可定义为显示装置100的非拉伸区。
导电结构12和接触部131不可拉伸，有利于降低导电结构12和接触部131因形变发生断裂的风险。于其他实施例中，导电结构12和接触部131也可拉伸，有利于进一步增加显示装置100整体的形变能力。
本实施例中，导电结构12、延伸部132、接触部131皆通过图案化制程(例如蚀刻、激光切割等)形成。相同的材料可在同一道图案化制程中形成。例如本实施例中，延伸部132和接触部131材料相同，则延伸部132和接触部131可在同一制程中形成。在其他实施例中，导电结构12、延伸部132、接触部131三者材料相同，则三者皆可在同一道制程中形成，有利于简化显示装置100制程。
本实施例中，各个导电结构12的结构相同，各个延伸部132的结构相同，且各个接触部131的结构相同，因此图3中仅展示一个导电结构12、一个延伸部132和一个接触部131作为示例，对导电结构12、延伸部132及接触部131之间的结构和电连接关系进行阐述。
本实施例中，连接线13由刚性导电材料构成，例如由金、铜、铝、钼、钛等金属，或银浆、碳浆、铜浆等导电浆料构成。于其他实施例中，连接线13可由具有形变能力的导电材料构成，搭配波浪状的结构，以利于进一步提升连接线13(或显示装置100)的形变能力。
当显示装置100受到拉伸力F时，导电结构12和接触部131不产生形变，延伸部132被拉伸产生形变使得显示装置100整体可产生形变。若导电结构12和延伸部132直接电连接，当显示装置100受到拉伸力F时，拉伸力F使得导电结构12和连接线13连接处应力增加，增加连接线13的断裂风险。本实施例通过设置接触部131以减小因应力增加导致的连接线13的断裂风险。
本实施例中，延伸部132各处线宽d相等。在延伸部132延伸的平面上，接触部131为一边长l等于延伸部132线宽d的正方形。接触部131相邻的两个边分别连接导电结构12和延伸部132。由于接触部131的边长l与延伸部132线宽相等，接触部131的尺寸与延伸部132的尺寸相适应。则当延伸部132被拉伸时，接触部131与延伸部132交界处的应力较小，不易引起连接线13断裂，因此接触部131使得导电结构12与连接线13的连接强度提升。于其他实施例中，延伸部132各处线宽不相等，接触部131的边长l等于延伸部132连接接触部131处的线宽。
请参阅图4，在本实施例中，由于延伸部132为波浪状，延伸部132具有多条切线，定义延伸部132上与接触部131连接处的切线为L1。定义接触部131与导电结构12连接的边所在的直线为接触线L2。本实施例中，切线L1与接触线L2的夹角θ小于30°。如此，可使得延伸部132与接触部131过渡更平滑，有利于减小连接线13被拉伸时的应力。
请参阅图5，在一对比例中，切线L1与接触线L2的夹角θ大于30°。请参阅图6，本实施例中切线L1与接触线L2的夹角θ小于30°。在拉伸力相同的情况下，测得图5中连接线23上应力为423.1MPa，而测得图6中连接线13上应力为337.1MPa。由此可知，切线L1与接触线L2的夹角θ减小时，连接线13受到的应力显著减小。因此本实施例中，通过设置切线L1与接触线L2的夹角θ小于30°，有利于减小应力，提升延伸部132与接触部131的连接强度，从而提升延伸部132与导电结构12的电连接强度。
请参阅图7，于一变更实施例中，在延伸部132延伸的平面上，接触部131为具有圆滑轮廓的形状而不为正方形。也即，接触部131至少有两个边为曲线。如此，使得接触部131与延伸部132平滑过渡连接，有利于进一步减小延伸部132与接触部131交界处所受的应力。
请参阅图8，在一对比例中，接触部331与延伸部332连接处非平滑而具有犄角α，由于犄角α会增加延伸部332与接触部331交界处所受的应力，在拉伸力相同时，对比例中连接线33上检测得到应力为474.7MPa，而检测得到图7中连接线13上应力为423.1MPa。由此可知，通过设置接触部131与延伸部132平滑连接，有利于减小延伸部132与接触部131交界处所受的应力，提升延伸部132与接触部131连接强度，从而提升连接线13与导电结构12的电连接强度。
如图3所示的结构可作为一导电模组10应用于除显示装置100之外的需要形变的设备中，例如应用于触控面板中。当导电模组10应用于触控面板时，导电结构12可为触控电极、触控芯片等。当导电模组10应用于触控面板时，同样可实现应用于显示装置100时的所有的有益效果。
本技术领域的普通技术人员应当认识到，以上的实施方式仅是用来说明本申请，而并非用作为对本申请的限定，只要在本申请的实质精神范围之内，对以上实施例所作的适当改变和变化都落在本申请要求保护的范围之内。

Claims (9)

1.一种导电模组，其特征在于，包括：
多个导电结构；以及
至少一连接线，每相邻两个导电结构之间电连接一所述连接线；
每一连接线包括电连接的接触部和延伸部，所述接触部电连接于一所述导电结构和所述延伸部之间，所述延伸部可拉伸以使得所述导电模组可拉伸；
在所述延伸部延伸的平面上，所述接触部为正方形，所述延伸部的线宽与所述接触部的边长相等，所述延伸部与所述接触部连接处的位置具有一切线，所述接触部与所述导电结构连接的边所在的直线定义为接触线，所述切线与所述接触线之间的夹角小于30°，使所述延伸部与接触部平滑连接，所述导电结构与所述接触部在垂直于所述延伸部延伸的平面上的投影邻接但是不重合。
2.如权利要求1所述的导电模组，其特征在于，所述接触部的两条相邻的边分别电连接延伸部和一所述导电结构。
3.如权利要求1所述的导电模组，其特征在于，每一所述连接线的延伸部为波浪状。
4.如权利要求1所述的导电模组，其特征在于，每一所述连接线的延伸部为正弦波状。
5.一种显示装置，其特征在于，包括如权利要求1-4任一项所述的导电模组，所述导电模组用于接收驱动信号以驱动所述显示装置显示图像。
6.如权利要求5所述的显示装置，其特征在于，所述显示装置包括多个像素及多条所述连接线，每一所述导电结构位于一所述像素中。
7.如权利要求6所述的显示装置，其特征在于，所述显示装置为液晶显示装置，每一所述导电结构为一像素电极。
8.如权利要求6所述的显示装置，其特征在于，所述显示装置为发光二极管显示装置，所述显示装置包括多个发光二极管，每一发光二极管位于一所述像素内，每一所述导电结构为一所述发光二极管。
9.如权利要求5所述的显示装置，其特征在于，还包括触控面板，所述多个导电结构包括触控电极或触控芯片。
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