5G浪潮下终端“瀑布屏”来袭 蓝思科技3.5D玻璃助推 全面屏新形态
自2017年手机行业进入了全面屏时代以来，诞生了刘海屏、水滴屏、挖孔屏、升降全面屏、滑盖全面屏等各种屏幕形态，此类全面屏聚焦的是手机顶部空间，而双曲面屏则是在机身的左右边框做文章，以此寻求更高的屏占比。
日前，OPPO在微博对外发布了全球首款“瀑布屏”真机，这款手机的屏幕占有率几乎达到100%，手机两侧的屏幕弯曲度达到了将近90°，前屏直接延伸到背板，再次刷新全面屏的屏占比。
关于瀑布屏，业界也称之为3.5D玻璃，最早出现在vivo的概念机 APEX 2019上。从vivo APEX概念机到vivo NEX的零界全面屏，再到vivo APEX 2019全玻璃unibody方案带来的超级一体的视觉体验，智能手机正往着更高屏占比、一体化设计方向演进。
根据公开资料显示，为呈现出一体玻璃犹如“水滴”般的通透质感，APEX 2019 打造出了G2非连续曲面不等厚玻璃，也就是3.5D玻璃，采用玻璃熔融粘接技术，把前后两块玻璃融合在一起，形成整体全玻璃手机的方案。同时取消手机中框及机身开孔，从而为整个机身带来超级一体的视觉体验。
据品牌终端人士称，受上半年所谓的“无孔化”设计影响，部分终端厂商已向供应链龙头企业蓝思科技提出，希望能做出上、下盖板玻璃组合后完全贴合的设计。
如今，“双面2．5D”及“前2．5D＋后3D”式搭配的玻璃盖板已逐渐占据近半数全球智能手机市场，且随着近两年3D曲面玻璃盖板的持续上量，手机曲面玻璃盖板市场由2．5D到3D过渡亦是大势所趋。
3D曲面玻璃目前正从小尺寸手机盖板应用逐渐朝着汽车内饰大尺寸方向发展，而3.5D玻璃可以理解为3D的更高级形态，可能是为了与一些特殊曲率的柔性AMOLED，甚至是可折叠AMOLED显示屏相匹配，或与平面的LCD显示屏相匹配而设计的。
在手机外观缺乏创新，同质化日益严重的情况下，3.5D玻璃及瀑布屏的出现有望在手机行业掀起一股新的热潮，打破智能手机市场持续疲软的局面。从华为、OPPO、vivo等手机厂商的布局来看，一体化设计将大有可为，3.5D玻璃、瀑布屏有望成为新技术热点。在5G新周期的浪潮下，蓝思科技等高端手机玻璃盖板龙头企业将迎来新一轮的发展机遇。
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