阅读说明：本技术 阵列基板及其制作方法、母板以及显示装置 (Array substrate and manufacturing method thereof, mother board and display device ) 是由 缪应蒙 张银淑 孙志华 于 2019-09-29 设计创作，主要内容包括：一种阵列基板(100)及其制作方法、母板以及显示装置。阵列基板(100)具有显示区域(DR)和非显示区域(PR),且包括衬底基板、设置在衬底基板上的多条信号线(400)和至少一个转接电极。多条信号线(400)沿第一方向从显示区域(DR)延伸至非显示区域(PR),多条信号线(400)中的至少一条包括位于显示区域(DR)内的第一走线(WL1)和位于非显示区域(PR)的第二走线(WL2),第二走线(WL2)包括至少两个彼此断开的子走线,其中,第二走线(WL2)的至少两个子走线中靠近显示区域(DR)的子走线和第一走线(WL1)直接连接,第二走线(WL2)中每相邻的两个子走线通过转接电极彼此电连接。阵列基板(100)可以改善或避免由于信号线(400)上的电荷累积而造成的断裂等不良。(An array substrate (100) and a manufacturing method thereof, a mother board and a display device are provided. The array substrate (100) has a Display Region (DR) and a non-display region (PR), and includes a substrate base, a plurality of signal lines (400) disposed on the substrate base, and at least one via electrode. The plurality of signal lines (400) extend from the display area (DR) to the non-display area (PR) along the first direction, at least one of the plurality of signal lines (400) comprises a first routing line (WL1) located in the display area (DR) and a second routing line (WL2) located in the non-display area (PR), the second routing line (WL2) comprises at least two sub-routing lines which are disconnected with each other, wherein the sub-routing line close to the display area (DR) in the at least two sub-routing lines of the second routing line (WL2) is directly connected with the first routing line (WL1), and every two adjacent sub-routing lines in the second routing line (WL2) are electrically connected with each other through the switching electrodes. The array substrate (100) can improve or avoid defects such as breakage caused by charge accumulation on the signal lines (400).)