This part of IEC 61747 describes the essential ratings and characteristics of LCD cells and passive matrix monochrome liquid crystal display modules.
It does not apply to active matrix LCD cells nor to multicolour cells.
IEC 61747-4:1998 history
2012IEC 61747-4:2012 Liquid crystal display devices - Part 4: Liquid crystal display modules and cells - Essential ratings and characteristics
1998IEC 61747-4:1998 Liquid crystal and solid-state display devices - Part 4: Liquid crystal display modules and cells - Essential ratings and characteristics