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BS IEC 62977-3-5:2023

BS IEC 62977-3-5:2023

$198.66

Electronic displays – Evaluation of optical performance. Colour capabilities

Published By Publication Date Number of Pages
BSI 2023 66
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PDF Catalog

PDF Pages PDF Title
2 undefined
4 CONTENTS
7 FOREWORD
9 INTRODUCTION
Tables
Table 1 – Application comparison with the related documents
10 1 Scope
2 Normative references
11 3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
12 3.2 Abbreviated terms
4 Standard measuring equipment
4.1 Video signal generator
4.2 Conditions of measuring equipment
4.3 Test equipment block diagram
13 Figures
Figure 1 – Measuring layout for a telescopic LMD
Figure 2 – Measuring layout for a close-up type LMD
14 5 Standard measuring conditions
5.1 Standard measuring environmental conditions
5.2 Standard measuring darkroom conditions
Figure 3 – Setup for viewing directional measurements
15 5.3 Standard setup conditions
5.4 Standard test pattern
16 6 Evaluation of colour and chromaticity capabilities
6.1 Chromaticity gamut and primary colour
6.1.1 Measured data for chromaticity gamut area
Figure 4 – Standard multi-colour pattern for centre box measurement
17 6.1.2 Absolute chromaticity gamut area
Table 2 – RGB input values for the chromaticitygamut boundaries (8-bit example)
18 6.1.3 Chromaticity gamut intersection area
Figure 5 – Example of chromaticity gamut area measurements
19 Table 3 – Example of chromaticity gamut area intersection
Table 4 – Cross-points of Table 3
20 6.1.4 Chromaticity and colour difference for primary colour additivity by location on the screen
Figure 6 – Example of gamut area intersection in Recommendation ITU-R BT.709
22 Table 5 – Example of primary colour by location for each RGB input
Table 6 –Example of measured and additively calculated white by location
23 6.1.5 Measuring method of chromaticity and colour difference for primary colour additivity by location on the screen
24 6.2 Chromaticity gamut area by input level
6.2.1 Measured data
25 6.2.2 Measuring method
Table 7 – RGB input levels for determining the chromaticitygamut area dependence on the input level
26 6.2.3 Evaluation of chromaticity gamut area by input level
Table 8 – Example of absolute and intersectingchromaticity gamut area dependence on the input level
27 6.3 Chromaticity gamut area by viewing direction
6.3.1 Measuring method
6.3.2 Evaluation of chromaticity gamut area by viewing direction
Figure 7 – Example of absolute chromaticity gamut area dependenceon input level normalized to the value at maximum input level (255)
28 6.4 RGB primaries additivity of mixed colour
6.4.1 Overview and measured data
29 Table 9 – RGB mixed colour inputs for colour to white
30 6.4.2 Measuring method
31 6.4.3 Evaluation of additive colour mixture by input variation from colour to white
Table 10 – Example of evaluation for input variation from colour to white
33 6.5 Colour reference-based colour reproduction accuracy
6.5.1 Colour reference pattern
Figure 8 – CIE u’v’ chromaticity diagram for Table 10
34 Table 11 – Device characterization matrices for some standard chromaticities
35 Table 12 – RGB input code values for colour reference patternin Recommendation ITU-R BT.709
36 Table 13 – RGB input code values for colour reference patternin Recommendation ITU-R BT.2020
37 Table 14 – RGB input code values for colour reference pattern in DCI‑P3
38 6.5.2 Measuring method
39 6.5.3 Evaluation of colour reproduction accuracy
Table 15 – Example of evaluation for colour reference pattern
40 6.5.4 Evaluation of chromaticity shift by viewing direction
Figure 9 –CIE u’v’ chromaticity diagram for Table 15
41 Figure 10 – Average Δu’v’ graph for Table 16
Table 16 –Example of average chromaticity difference Δu’v’for colour reference pattern at the H and V directions
Table 17 – Example of average chromaticity difference Δu’v’for colour reference pattern at the azimuthal directions
42 6.6 Colour gamut volume by viewing direction
6.6.1 Purpose
6.6.2 Measuring method
Figure 11 – Average Δu’v’ graph for Table 17
43 6.6.3 Evaluation of colour gamut volume by viewing direction
Figure 12 – Example of colour gamut volume at the H and V directions
Figure 13 – Example of colour gamut volume at the azimuth directions
44 6.7 Colour gamut intersection volume and gamut rings
6.7.1 Purpose of colour gamut intersection volume
6.7.2 Evaluation of colour gamut intersection volume
6.7.3 Evaluation using Gamut Rings
7 Reporting
7.1 Reporting information requirements
45 7.2 Measurement results requirements
Table 18 – Letter symbols of the tristimulus values in 6.1, 6.4 and 6.5
47 Annex A (informative)Alternative colour gamut volume evaluation
A.1 General
A.2 Measuring method for colour gamut volume at various viewing directions
48 A.3 Interpolation of colour coordinates
Figure A.1 – RGB input values for 602-point interpolation
49 Figure A.2 – Sub-gamut number for 602-point interpolation
50 Table A.1 – Example of sub-gamut assignment for RGB inputs
Table A.2 – Example of sub-gamut primary in Recommendation ITU-R BT.709
51 A.4 Alternative method for colour gamut intersection volume
53 A.5 Spreadsheets for colour gamut related evaluation
Figure A.3 – Example of mapping of an outerpoint to the boundary of a standard gamut
55 Figure A.4 – User interface and graphics ofcolour gamut related calculation spreadsheets
56 Annex B (normative)Tool for colour gamut calculation and visualization
B.1 General
B.2 Installation and launching (Windows®)
B.3 Reading input files
57 B.4 Graph selection
B.5 Graph layout
Figure B.1 – User interface for reading measurement input data
58 B.6 CIE 1976 L*a*b* and CIE 1931 xyY plots
Figure B.2 – Screenshot of the Gamut Rings Viewer tool with the mouse hoveringon a file name showing a pop-up tip of the full path to the data file
59 B.7 CIE 1931 xy chromaticity diagram
Figure B.3 – CIELAB plot of the same data as in Figure B.2with the 3D rotation showing the axes toolbar
Figure B.4 – CIE xyY plot of the same data as in Figure B.2
60 B.8 Gamut rings
Figure B.5 – CIE 1931 xy chromaticity diagram of the same data as in Figure B.2
Figure B.6 – Same plot as Figure B.2 in dark mode
61 Figure B.7 – Schematic of the gamut ring transform
62 B.9 Exporting graphs
Figure B.8 – Gamut rings in outline mode with the plot mode pop-up menu
Figure B.9 – Total gamut of the test display (grey areas indicateDUT colours that lie outside the reference gamut)
63 B.10 Support
64 Bibliography

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BS IEC 62977-3-5:2023
$198.66