SIST EN 61966-4:2001

SIST EN 61966-4:2001 is the Slovenian standard equivalent to EN 61966-4:2000, based on IEC 61966-4:2000. It belongs to the series on multimedia systems and equipment for colour measurement and management, and it covers equipment using transmissive-type liquid crystal display (LCD) panels to display colour images. The standard specifies test signals, measurement conditions and methods of measurement so that colour management and comparison of results can be carried out in a consistent way.

What does SIST EN 61966-4:2001 specify?

SIST EN 61966-4:2001 specifies how to measure colour on equipment that uses transmissive-type LCD panels for multimedia image display. Its purpose is to give users a common basis for colour management and for comparing measurement results from one display or one setup to another.

In practical terms, the standard focuses on three things: the stimulus used for the measurement, the conditions under which the measurement is made, and the method used to take the measurement. That matters because colour results can vary if the display is driven differently or measured under different conditions.

The standard is Part 4 of the multimedia colour measurement and management series. That tells the reader that it is a focused part of a larger family of standards dealing with colour in multimedia equipment.

What are the key requirements of SIST EN 61966-4:2001?

SIST EN 61966-4:2001 is built around repeatable colour measurement of transmissive-type LCD equipment. The main technical point is not a product design rule, but a common measurement approach that lets users compare results with less ambiguity.

The main points in practice

• Use on transmissive-type LCD panels

  • SIST EN 61966-4:2001 applies to equipment that uses transmissive-type LCD panels to show colour images.
  • In practice, this means the user must first know that the display technology fits that category before applying the standard.

• Apply defined test signals

  • The standard specifies test signals for the measurement process.
  • This matters because the displayed pattern affects the measured colour result, so everyone needs to use the same kind of stimulus for the results to be comparable.

• Control the measurement conditions

  • SIST EN 61966-4:2001 sets measurement conditions to support consistent results.
  • For a laboratory or quality team, this means the surrounding measurement setup has to be controlled rather than left to local habit.

• Use the prescribed methods of measurement

  • The standard sets out methods of measurement for the display equipment.
  • In practice, this gives engineers and test labs a shared procedure instead of ad hoc checking, which reduces disputes over reported colour performance.

• Support colour management

  • The standard is written so the results can be used for colour management.
  • That is important when a company needs to match display colour across products, suppliers, or production batches.

• Enable comprehensive comparison of measurement results

  • SIST EN 61966-4:2001 is also intended to make measurement results comparable.
  • This helps buyers, validation teams, and laboratories compare one LCD-based product against another using the same measurement basis.

• Limit the scope to multimedia use

  • The standard is written for equipment used in multimedia applications.
  • This helps users decide whether the document is the right one for a particular display system, especially when colour reproduction is part of the product requirement.

What terms does SIST EN 61966-4:2001 define?

• Transmissive-type LCD panel - A liquid crystal display panel that uses transmitted light to present the image, which is the display type covered by this standard.
• LCD - Liquid crystal display; the display technology addressed by the standard when used in transmissive form.
• Test signal - The image or stimulus used during measurement so the display can be measured in a repeatable way.
• Measurement conditions - The set of conditions under which the colour measurement is made, so results can be compared meaningfully.
• Methods of measurement - The procedure used to carry out the colour measurement on the LCD equipment.
• Colour management - The use of measurement results to control or match colour behaviour across equipment.
• Multimedia applications - The application area for the equipment covered by the standard, where colour display performance is part of the system function.

Who uses SIST EN 61966-4:2001?

SIST EN 61966-4:2001 is used by people who need to measure, compare, or specify the colour behaviour of LCD-based multimedia equipment. Typical users include display manufacturers, multimedia equipment designers, test laboratories, quality managers, and buyers checking supplier data.

For engineers, the standard gives a shared measurement basis. For quality teams, it supports repeatable verification of colour performance. For buyers and specifiers, it helps when comparing displays or asking for results that are measured in the same way.

It is also relevant wherever colour consistency matters in multimedia equipment using transmissive-type LCD panels, because the standard is aimed at making reported results easier to compare.

What does the SIST EN 61966-4:2001 document contain?

SIST EN 61966-4:2001 contains the technical material needed to measure colour on transmissive-type LCD panels in a consistent way. The key content is the defined test signals, the measurement conditions, and the measurement methods that support colour management and comparison of results.

The document is therefore useful as a working standard for measurement setups, laboratory procedures, and product comparison work. It gives users a common technical basis instead of leaving each organization to create its own colour-measurement practice.

For readers, the practical value is simple: it tells them how the display should be stimulated and measured so the results can be used with confidence across different equipment and test sites.