BSI PD IEC TR 62977-2-5:2018
$167.15
Electronic display devices – Transparent displays. Measurements of optical characteristics
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 42 |
This part of IEC 62977 describes the conditions and measuring methods for determining the displayed properties (on-screen) and the through-screen properties of transparent direct-view-type liquid crystal displays (LCDs) and those of organic light emitting diode (OLED) displays.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 4 | CONTENTS |
| 6 | FOREWORD |
| 8 | 1 Scope 2 Normative references 3 Terms and definitions |
| 9 | 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 |
| 10 | 4.2.3 Ambient illumination spectra Tables Table 1 – Standard ambient conditions |
| 11 | 4.3 Standard setup conditions 4.3.1 Starting conditions of measurements 4.3.2 Standard measuring positions 4.3.3 Conditions of measuring equipment Figures Figure 1 – Measurement points |
| 12 | Figure 2 – Layout diagram of measurement setup |
| 13 | 5 Measuring methods of transparent properties 5.1 Hemispherical transmittance factor with specular included 5.1.1 Purpose 5.1.2 Measuring conditions |
| 14 | 5.1.3 Measuring method |
| 15 | 5.2 Transmitted haze 5.2.1 General 5.2.2 Transmitted haze under hemispherical illumination Figure 3 – Side view of measuring concept for the hemispherical transmittance factor measurement with specular included or excluded |
| 17 | 5.2.3 Transmitted haze with directly incident light Figure 4 – Schematic arrangement of haze measurement Table 2 – Measuring conditions of the ports |
| 19 | Figure 5 – Schematic arrangement of the apparatus (TOP view) |
| 20 | 5.3 Directional transmittance factor 5.3.1 Purpose 5.3.2 Measuring conditions Table 3 – Measurements |
| 21 | 5.3.3 Measuring method |
| 22 | 5.4 Degree of clear distinction of see-through objects 5.4.1 General 5.4.2 Purity Figure 6 – Side view of measuring concept for the hemispherical transmittance factor measurement with specular included or excluded |
| 24 | Figure 7 – Measuring configuration for purity measurement Figure 8 – Test patterns for purity measurement |
| 25 | 5.4.3 Clarity (measurement method using a stripe pattern with a rigid width.) Table 4 – Measured example for purity Table 5 – Example of reported specification of two dimensional LMD |
| 26 | Figure 9 – Measuring system and its configuration |
| 27 | Figure 10 – Example reference object and its configuration Figure 11 – Luminance curve of reference object |
| 28 | 5.4.4 Clarity (Measuring method using a stripe pattern with gradually changed width) Figure 12 – Definition of test parameters |
| 29 | Figure 13 – Reference object and its configuration |
| 30 | 5.5 Colour variation caused by a transparent display 5.5.1 Purpose 5.5.2 Measuring conditions 5.5.3 Measuring method Figure 14 – The relationship between stripe frequency and Michelson contrast ratio |
| 31 | Figure 15 – Measuring configuration |
| 32 | 6 Measuring methods of on-screen properties 6.1 Ambient contrast ratio 6.1.1 Purpose 6.1.2 Measuring conditions Table 6 – Working example for colour variation index |
| 33 | 6.1.3 Measuring method |
| 34 | 6.2 Display ambient colour measurement 6.2.1 Purpose 6.2.2 Measuring conditions 6.2.3 Measuring method |
| 35 | 6.3 Contrast ratio and colour coordinate with the incident illumination originating from objects behind the screen 6.3.1 Purpose |
| 36 | Figure 16 – Geometry of the transparent display and the bright background object |
| 37 | 6.3.2 Measuring method with white light source Figure 17 – Case with bright background |
| 39 | 6.3.3 Measuring method with collimated or directional light source Figure 18 – Measurement configuration for transparent display with background object |
| 41 | Bibliography |
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BSI PD IEC TR 62977-2-5:2018
Electronic display devices – Transparent displays. Measurements of optical characteristics Published By Publication Date Number…
