PD IEC TR 62977‑5‑2 is a part of the IEC 62977 multi-series that discusses electronic displays. PD IEC TR 62977‑5‑2 specifies which is a Technical Report, describes the visual assessment method of the viewing direction characteristics of display devices. PD IEC TR 62977‑5‑2 reviews the visual assessment of viewing direction by using special test patterns to estimate colour changes, image structure, and image luminance.
Experimental results are shown to reveal the effectiveness of this kind of visual assessment. This method is a valuable tool for identifying image quality issues, but physical measurements will be used to confirm display performance specifications.
Note: The visual assessment results will depend on the test pattern parameters and display setup conditions. As the viewing direction changes, characteristics such as contrast ratio, resolution, and device colour-shift simultaneously change in the perceived image.
PD IEC TR 62977‑5‑2 on electronic displays with visual assessment of colour discrimination useful for:
This visual assessment approach has the benefit of obtaining a directly human response to variations for any given task. However, it can be challenging with this approach to get reproducible experimental results due to different colour matching functions (CMFs), differences in observer experience, observer fatigue, attitudes toward experiments, human adaptation to different experimental environments (including illumination conditions, surroundings, or other environmental factors), content-dependent differences, and other variables.
PD IEC TR 62977‑5‑2 provides you with a method of structural sensitivity assessment dependent on the viewing direction, interpretation of assessment results, and correlation between assessment results and physical measurements. This correlation value can be used as the basis for determining one aspect of the viewing direction range of a display, which has relevance from a visual quality point of view.
The guidelines given in PD IEC TR 62977‑5‑2 enable you to improve your electronic display devices image quality.
IEC/TR 62977-5-1 Ed.1.0