IEC 62629-1-2:20 21作为IEC 62629-1-2:20 21 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 62629-1-2:20 21提供了IEC 62629系列中描述3D显示技术时经常使用的术语列表。包括立体、自动立体、体积和全息显示器上的各种3D显示技术的术语。与上一版相比，此版本包括以下重大技术变更: -增加了全息显示和光场显示相关的新术语； -增加了其他IEC 62629系列文件中使用的性能规范的新术语； -增加了附录C，以更详细地解释3D显示器中的深度感知。

IEC 62629-1-2:2021 is available as IEC 62629-1-2:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 62629-1-2:2021 provides a list of the terminologies that are frequently used in describing 3D display technologies in the -IEC 62629 series. Terms for various 3D display technologies on stereoscopic, autostereoscopic, volumetric, and :holographic displays are included. This edition includes the following significant technical changes with respect to the previous edition:
- added new terms related to holographic display and light field display;
- added new terms on the performance specifications used in other IEC 62629 series documents;
- added Annex C to explain the depth perception in 3D displays in more detail.