EN 61747-4:2012

Liquid crystal display devices - Part 4: Liquid crystal display modules and cells - Essential ratings and characteristics

Publication date:   Feb 15, 2013

General information

60.60 Standard published   Dec 14, 2012

CENELEC

CLC/SR 110 Flat panel display devices

European Norm

31.120   Electronic display devices

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Scope

IEC 61747-4:2012 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. This edition includes the following significant technical changes with respect to the previous edition: - 2.1 and 3.1 of IEC 61747-4:1998 were deleted because these items are defined in IEC 61747-1; - 2.7.6, in 2.7, Supplementary information, of IEC 61747-4:1998 was deleted because the scope of this standard is about passive matrix monochrome liquid crystal display modules; - The item 'Gray scale: digital or analog' in 2.3.1 of IEC 61747-4:1998 was changed to 'Gray scale: number' because it is more accurate; - Contrast mode: light symbol on dark background ('LOD' or 'positive image') or dark symbol on light background ('DOL' or 'negative image') was introduced in this part of IEC 61747 to replace the description in 2.3.1 and 3.3.1 of IEC 61747-4:1998.

Life cycle

PREVIOUSLY

WITHDRAWN
EN 61747-4:1998

NOW

PUBLISHED
EN 61747-4:2012
60.60 Standard published
Dec 14, 2012