IEC 61747-1-2:20 14给出了液晶器件的优选术语、其定义和符号，目的是在不同国家准备出版物时使用相同的术语。本第一版取消并取代1998年出版的IEC 61747-1第一版和修正案1:20 03。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更: a)原IEC 61747-1通用规范分为IEC 61747-1-1，液晶显示器件-第1-1部分:通用-通用规范和IEC 61747-1-2，液晶显示器件-第1-2部分:通用-术语和字母符号； b)在IEC 61747的这一部分中，增加了新的术语，并更新了部分术语和定义。

IEC 61747-1-2:2014 gives the preferred terms, their definitions and symbols for liquid crystal devices, with the object of using the same terminology when publications are prepared in different countries. This first edition cancels and replaces the first edition of IEC 61747-1 published in 1998 and Amendment 1:2003. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) The former IEC 61747-1, Generic specification was divided into IEC 61747-1-1, Liquid crystal display devices - Part 1-1: Generic - Generic specification and IEC 61747-1-2, Liquid crystal display devices - Part 1-2: Generic - Terminology and letter symbols;
b) In this part of IEC 61747, new terms have been added and some of the terms and the definitions have been updated.