IEC 61966-4-2000 PDF

Full title and description

Multimedia systems and equipment - Colour measurement and management - Part 4: Equipment using liquid crystal display panels. This International Standard specifies test signals, measurement conditions and measurement methods for transmissive-type liquid crystal display (LCD) panels used to display colour images in multimedia applications, to support colour management and objective comparison of measurement results.

Abstract

This standard (IEC 61966-4:2000) defines the measurement framework and procedures for assessing colour reproduction of transmissive LCD panels in multimedia systems. It covers environmental and instrument conditions, input signal definitions, spectral and intensity characteristics of primaries and white stimuli, and procedures for obtaining chromaticity and luminance data intended to support colour management workflows and inter-device comparison. The standard was published as a full IEC International Standard in 2000 and has been adopted by several national/regional bodies.

General information

• Status: Published / Current (IEC listing shows active publication with stability date).
• Publication date: 21 March 2000.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 31.120, 33.160.60 (multimedia, colour measurement and management).
• Edition / version: Edition 1.0 (2000).
• Number of pages: 75 pages (IEC publication metadata).

Scope

IEC 61966-4:2000 applies to equipment that use transmissive-type liquid crystal display (LCD) panels to display colour images for multimedia applications. It sets out the required measurement conditions (environment, input data, and instrument types), defines test signals and stimuli, and prescribes methods to measure spectral characteristics, primaries, white point and luminance so results can be used for colour management and for objective comparison between devices. The aim is to enable consistent, repeatable measurement data suitable for inter-device colour management.

Key topics and requirements

• Definitions of test signals and digital input data formats for measurement of LCD panels.
• Environmental and measurement conditions (ambient lighting, viewing geometry, and stabilization procedures).
• Specification of measurement equipment and its required capabilities (spectroradiometers, colourimeters) and calibration considerations.
• Procedures for measuring spectral characteristics and intensity of primaries and white stimuli, including target chromaticities and luminance.
• Methods for deriving chromaticity, correlated colour temperature, luminance and contrast metrics from measured data.
• Reporting formats and recommended test patterns to support colour management and comparison between displays.
• Guidance to support integration with colour-management systems and other parts of the IEC 61966 series (for example, default RGB encodings and profile-related parts).

Typical use and users

Engineers and technicians performing display characterization and validation; manufacturers of LCD panels and multimedia equipment; test laboratories establishing display performance and conformity; colour-management specialists creating or validating ICC profiles and colour-reproduction pipelines; standards bodies and procurement teams referencing objective display measurement methods. Typical uses include production test, qualification of displays for multimedia devices, interoperability testing for colour-managed workflows, and baseline characterization for profile creation.

Related standards

IEC 61966-4 is part of the IEC 61966 series on colour measurement and management. Closely related parts include IEC 61966-2-1 (sRGB/default RGB colour space), IEC 61966-2-2, IEC 61966-3 (CRT displays), IEC 61966-6, IEC 61966-9 (digital cameras) and other parts that cover device classes and colour-management methods. This part has also been adopted regionally as EN/BS variants (for example EN 61966-4:2000).

Keywords

LCD, liquid crystal display, colour measurement, colour management, multimedia systems, test signals, spectroradiometer, colourimeter, primaries, white point, luminance, chromaticity, IEC 61966 series, sRGB.

FAQ

Q: What is this standard?

A: IEC 61966-4:2000 is an International Standard that specifies measurement conditions and methods for colour measurement and management of transmissive LCD panels used in multimedia equipment.

Q: What does it cover?

A: It covers required environmental and instrument conditions, definitions of input/test signals, measurement procedures for spectral characteristics, primaries and white stimuli, and reporting formats to support colour management and objective comparison between displays.

Q: Who typically uses it?

A: Display manufacturers, test labs, colour scientists, multimedia equipment designers, and anyone involved in producing or verifying display colour performance and creating colour-management profiles.

Q: Is it current or superseded?

A: As published by IEC, IEC 61966-4:2000 is a published International Standard (edition 1.0, publication date 21 March 2000) and is listed with a stability date in IEC metadata; users should check with their national standards body or the IEC webstore for the absolute current status or any amendments before applying it.

Q: Is it part of a series?

A: Yes — it is part 4 of the IEC 61966 series (Colour measurement and management), which contains several parts addressing different device classes (sRGB/default RGB, CRTs, cameras, other display technologies and related measurement practices).

Q: What are the key keywords?

A: LCD, colour measurement, colour management, primaries, white point, luminance, chromaticity, spectroradiometer, colourimeter, multimedia.