1 Scope
This part of IEC 62715, which is a technical specification, specifies the general rules and the details
of optical measuring methods from a fixed point (the so-called vantage point) for
curved emissive and transmissive type displays such as OLED and LCD in dark room conditions.
This document focuses on concave shape large screen displays (non-portable) around
a horizontal and/or vertical axis with fixed or variable curvature radius.
The measuring method stipulated in this technical specification is applied to the
curved display modules under the following states:
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• vantage-point luminance variation by viewing angles
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• vantage-point contrast ratio variation by viewing angles
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• vantage-point chromaticity variation of white colour by viewing angles
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• vantage-point colour gamut area variation by viewing angles
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• vantage-point chromaticity variation of primary colours by viewing angles
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• luminance uniformity and its uniformity variation by viewing angles
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• chromaticity uniformity and its uniformity variation by viewing angles
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• viewing angle of half-luminance
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• viewing angle of half-contrast