BS IEC 62341-6-4:2017
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Organic light emitting diode (OLED) displays – Measuring methods of transparent properties
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 48 |
IEC 62341-6-4:2017(E) specifies the standard measurement conditions and measuring methods for determining the optical performance of transparent properties of organic light emitting diode (OLED) display panels and modules. This document includes the display performance under darkroom conditions, and front and back illumination.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | CONTENTS |
| 8 | FOREWORD |
| 10 | 1 Scope 2 Normative references 3 Terms and definitions |
| 11 | 4 Measuring conditions 4.1 Standard measuring environmental conditions 4.2 Standard lighting conditions 4.2.1 Darkroom conditions 4.2.2 Ambient illumination conditions |
| 12 | 4.2.3 Ambient illumination spectra 4.3 Standard setup conditions 4.3.1 Starting conditions of measurements Tables Table 1 – Standard ambient conditions |
| 13 | 4.3.2 Conditions of measuring equipment Figures Figure 1 – Layout diagram of measurement setup |
| 14 | 5 Measuring methods of transparent properties 5.1 Measuring methods of transmission performance 5.1.1 Hemispherical transmittance factor with specular included |
| 16 | 5.1.2 Transmitted haze under hemispherical illumination Figure 2 – Side view of measuring concept for the hemispherical transmittance factor measurement with specular included or excluded |
| 18 | 5.1.3 Directional transmittance factor Figure 3 – Schematic arrangement of haze measurement Table 2 –Measuring conditions of the ports |
| 20 | 5.1.4 Measurement method of purity Figure 4 – Side view of measuring concept for the hemispherical transmittance factor measurement with specular included or excluded |
| 22 | Figure 5 – Measuring configuration for purity measurement Figure 6 – Test patterns for purity measurement |
| 23 | 5.1.5 Colour variation caused by a transparent display Table 3 – Measured example for purity |
| 24 | 5.2 Measuring methods of on-screen performance in a darkroom 5.2.1 Luminance and its uniformity Table 4 – Working example for colour variation index |
| 25 | Figure 7 – Test pattern for 4 % window luminance |
| 26 | Figure 8 – Example of luminance loading measurement Table 5 – Worked example for luminance loading |
| 27 | 5.2.2 Chromaticity and colour non-uniformity Figure 9 – Measurement locations Table 6 – Example of luminance non-uniformity |
| 28 | 5.2.3 Darkroom contrast ratio Table 7 – Example of colour uniformity measurement |
| 29 | 5.2.4 Grey scale and gamma characteristics |
| 30 | Figure 10 – Measuring patterns for gamma measurement Table 8 – Example of gamma measurement |
| 31 | 5.2.5 Colour gamut |
| 32 | Table 9 – Reference areas for the colour reproduction range Table 10 – Example of measurement for the colour gamut variation ratio |
| 33 | 5.2.6 Directional optical characteristics |
| 34 | 6 Measuring methods of reflection properties 6.1 Hemispherical reflectance factor with specular included 6.1.1 Purpose 6.1.2 Measuring conditions 6.1.3 Measuring method Table 11 – Example of measurement for the directional electro-optical characteristic |
| 35 | 6.2 Directional reflectance factor 6.2.1 Purpose 6.2.2 Measuring conditions 6.2.3 Measuring method 7 Optical on-screen performance under ambient illumination 7.1 Ambient contrast ratio 7.1.1 Purpose |
| 36 | 7.1.2 Measuring conditions 7.1.3 Measuring method |
| 37 | 7.2 Display ambient colour measurement 7.2.1 Purpose 7.2.2 Measuring conditions |
| 38 | 7.2.3 Measuring method |
| 40 | Annex A (normative)Alternative method for measuring the hemispherical transmittance factor of a transparent OLED display A.1 Purpose A.2 Measuring conditions A.3 Measuring the transmittance |
| 41 | Figure A.1 – Measurement geometry using a sampling sphere |
| 43 | Bibliography |
