IEC 61966-4 pdf download – Multimedia systems and equipment – Colour measurement and management – Part 4: Equipment using liquid crystal display panels

IEC 61966-4 pdf download – Multimedia systems and equipment – Colour measurement and management – Part 4: Equipment using liquid crystal display panels
1Scope
A series of characteristics for colour reproduction and management,and the associatedmethods of measurement for use in multimedia systems and equipment,are applicable to theassessment of colour reproduction. This part of lEC 61966 deals wih equipment usingtransmissive-type liquid crystal display (LCD) panels to display colour images for use inmultimedia applications.
The methods of measurement standardized in this part are designed to make possible theobjective performance assessment and characterization of colour reproduction of LCDs whichaccept red – green – blue analogue or digital signals from electrical input terminals and outputcolour images on LCD screens.For LCDs to which analogue signals are applicable，thecorresponding digital signals are taken into account.The measured results are intended to beused for the purpose of colour management in multimedia systems.
This part of lEC 61966 defines input test signals，measurement conditions and methods ofmeasurement, so as to make possible the colour management and comprehensive comparisonof the results of measurements.
Colour control within equipment is outside the scope of this part. It does not specify limitingvalues for various parameters.
2Normative references
The following normative documents contain provisions which，through reference in this text,constitute provisions of this part of lEC 61966.For dated references,subsequent amendmentsto，or revisions of，any of these publications do not apply. However,parties to agreementsbased on this part of IEC 61966 are encouraged to investigate the possibility of applying themost recent editions of the normative documents indicated below. For undated references, thelatest edition of the normative document referred to applies.Members of lEC and lSO maintainregisters of currently valid lnternational Standards.
IEC 60050(845):1987,International Electrotechnical Vocabulary (IEV) – Chapter 845: LightingCIE 17.4: 1987, International Lighting Vocabulary (joint lEC/CIE publication)
ISO/CIE 10527:1991,CIE standard colorimetric observers
CIE 15.2:1986,Colorimetry
CIE 63:1984,The spectroradiometric measurement of light sources
ISO 9241-8:1997,Ergonomic requirements for office work with visual display terminals (VDTs)-Part 8: Requirements for displayed colours
3Terms and definitions
For the purpose of this part of lEC 61966, the definitions of lEC 60050(845),CIE 17.4,as wellas the following definitions, apply.
3.1
background
image on a screen of the LCD other than the test area
3.2
colour patch, test area
square colour image on a screen of the LCD to be measured, in which the input data for thered, green and blue channels are kept constant within the image area
3.3
CRT display
colorimetrically well-controlled equipment using cathode ray tubes to present colour imageswith digital inputs for reference
3.4
LcD
any multimedia equipment using a transmissive-type liquid crystal display panel to presentcolour images
3.5
effective screen height
vertical dimension of the area where a picture can be produced
3.6
effective screen width
horizontal dimension of the area where a picture can be produced
3.7
normalized (image) signal
input signal divided by its full-scale value. See also 5.3
3.8
uncertainty (of measurement)
parameter,associated with the result of a measurement,that characterizes the dispersion ofthe values that could reasonably be attributed to the particular quantity subject tomeasurement. See [5]1)