IEC TR 62715-6-21:2022是一份技术报告，提供了关于可折叠产品的各种折叠类型和铰链结构的信息，这些可折叠产品会影响可折叠面板的耐久性。本文件仅关注与可折叠产品有关的问题，不包括不影响显示器耐用性的产品部件，如扬声器、电池、通信端口。

IEC TR 62715-6-21:2022, which is a technical report, provides information about various folding types and hinge structures of foldable products which can affect the durability of a foldable panel. This document focuses only on the issues concerning the foldable products and will not include product parts that do not affect display durability such as speakers, batteries, communication ports.