标准摘要
[中文适用范围]： IEC 61747 的这一部分是移动设备电子显示器中使用的盖板玻璃的机械性能测试程序。本文件重点介绍由于尖锐颗粒碰撞到盖玻片表面而导致样品破裂所需的表面冲击能的测量。这是通过将一个球落在放置在刚性支撑的盖玻璃上的涂附磨料片上来实现的。失效模式与通过锐利接触造成的损坏有关。在强化玻璃的情况下，中心张力会增强裂纹的扩展。这种故障模式代表了移动设备中观察到的几种现场故障模式之一。 [外文原描述]： IEC 61747-40-5:2018(E) is a mechanical performance testing procedure for cover glass used in electronic displays in mobile devices. This document focuses on the measurement of surface impact energy required to fracture a specimen due to the collision of sharp particles onto the surface of a cover glass. This is achieved by dropping a ball on a sheet of coated abrasives placed on the cover glass, which is rigidly supported. The failure mode is associated with damage introduction via sharp contact. Crack propagation is enhanced by central tension in the case of strengthened glass. This failure mode represents one of several field failure modes observed in mobile devices.
英文名称Liquid crystal display devices - Part 40-5: Mechanical testing of display cover glass for mobile devices - Strength against dynamic impact by a sharp object with the specimen rigidly supported