Mura缺陷成因
材料本身问题
-
胶水变黄 -
如滤光片、增亮片、光扩散膜等膜片的变黄或者变形
优化方案：
工艺制程带来不良
应力来源：
-
OCR有一个从液态到固态的过程，固化后其体积收缩不均导致液晶受到应力； -
LCM/盖板本身的翘曲 -
OCR膜厚异常等 -
固化过程中受到外界应力
优化方案：
-
控制胶层膜厚均一性 -
HybridOCR贴合前预固化或采取面固化为纯热固化材料 -
选择低模量、低硬度、固化收缩率低的胶水材料 -
管控CG &OGS/LCM翘曲
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The original article was posted on the WeChat official account "Smart Car Club."一文看懂车载显示全贴合过程中的MURA不良
Recently, vehicles equipped with integrated black, large-sized displays have gained recognition among many consumers, becoming a hot topic in the industry. Of course, curved displays, 3D glass, large multi-screen setups, OLED, and other hot topics have always been the focus of competition among major manufacturers. In such an industry landscape, Aibang has established a car display communication group. Currently, upstream and downstream enterprises in the display and bonding industry chain, such as FAW, SAIC, Geely, Great Wall, Changan, Harman, Marrelli, Huayang, Desay SV, Hangsheng Electronics, Tianma, BOE, TPK, Changxin Technology, Xinli, Lai Bao, Lanshi, Bern, Teyi, Victory Precision, Xingxing Technology, TDK, VAC, 3M, Tongli Optoelectronics, Corning, Schott, AGC, Nippon Electric Glass, Sumitomo, and Sabic, have joined. All friends are welcome to join the group for discussions and mutual progress.
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