在大世代线液晶面板厂，因产品切换便捷、产能高等优势，配向膜材料涂布多采用喷墨印刷方式。但随着高分辨率、无边框等技术升级，喷墨印刷方式面临的挑战也随之增加，产生了很多新的配向膜不良。本文研究了一种周边配向膜Mura，分析原因为阵列基板上的配向膜固化时，在基板周边过孔处出现堆积，造成周边显示区配向膜厚不均匀，导致显示区边缘形成暗线不良。文章从配向膜边界位置、预固化温度、预固化环境气压和配向膜膜厚4个方面进行分析实验，证明了外扩配向膜边界、降低预固化温度、降低预固化环境气压和降低配向膜膜厚，可以有效减轻配向膜在周边过孔处堆积，进而成功解决此不良，获得优异的显示品质。

In large generation LCD factory, Inkjet printing is widely used for PI (Polyimide alignment film) material coating，due to convenient product switching and high capacity . As the technology upgrading, such as high PPI, Borderless etc., the challenges of novel PI Mura occurred in inkjet printing process. We research a kind of peripheral PI Mura in this paper. In Pre-cure process, PI solution was accumulated much near the peripheral via Hole of array glass，leading to larger inhomogeneous film thickness, which caused the edge dark line mura . We research the process conditions of PI pattern position, Pre-cure temperature, Pre-cure air pressure and PI Thickness. The results reveal that extending edge of PI pattern, lowering Pre-cure temperature, reducing the air pressure and thinning the film effectively decrease accumulation near the peripheral via hole, and induce the defect-free and excellent display