1、 IEC 62341-6-4 Edition 1.0 2017-05 INTERNATIONAL STANDARD Organic light emitting diode (OLED) displays Part 6-4: Measuring methods of transparent properties IEC 62341-6-4:2017-05(en) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2017 IEC, Geneva, Switzerland All rights reserved. Un
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11、roperties INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 31.260 ISBN 978-2-8322-4297-1 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colour inside 2 IEC 62341-6-4:2017 IEC 2017 CONTENTS FOREW
12、ORD . 4 1 Scope 6 2 Normative references 6 3 Terms and definitions 6 4 Measuring conditions . 7 4.1 Standard measuring environmental conditions 7 4.2 Standard lighting conditions 7 4.2.1 Darkroom conditions 7 4.2.2 Ambient illumination conditions 7 4.2.3 Ambient illumination spectra 8 4.3 Standard s
13、etup conditions . 8 4.3.1 Starting conditions of measurements . 8 4.3.2 Conditions of measuring equipment . 9 5 Measuring methods of transparent properties 10 5.1 Measuring methods of transmission performance 10 5.1.1 Hemispherical transmittance factor with specular included . 10 5.1.2 Transmitted h
14、aze under hemispherical illumination 12 5.1.3 Directional transmittance factor . 14 5.1.4 Measurement method of purity . 16 5.1.5 Colour variation caused by a transparent display . 19 5.2 Measuring methods of on-screen performance in a darkroom 20 5.2.1 Luminance and its uniformity . 20 5.2.2 Chroma
15、ticity and colour non-uniformity 23 5.2.3 Darkroom contrast ratio . 24 5.2.4 Grey scale and gamma characteristics 25 5.2.5 Colour gamut . 27 5.2.6 Directional optical characteristics 29 6 Measuring methods of reflection properties . 30 6.1 Hemispherical reflectance factor with specular included 30 6
16、.1.1 Purpose . 30 6.1.2 Measuring conditions . 30 6.1.3 Measuring method . 30 6.2 Directional reflectance factor 31 6.2.1 Purpose . 31 6.2.2 Measuring conditions . 31 6.2.3 Measuring method . 31 7 Optical on-screen performance under ambient illumination 31 7.1 Ambient contrast ratio . 31 7.1.1 Purpo
17、se . 31 7.1.2 Measuring conditions . 32 7.1.3 Measuring method . 32 7.2 Display ambient colour measurement 33 7.2.1 Purpose . 33 7.2.2 Measuring conditions . 33 7.2.3 Measuring method . 34 IEC 62341-6-4:2017 IEC 2017 3 Annex A (normative) Alternative method for measuring the hemispherical transmitta
18、nce factor of a transparent OLED display 36 A.1 Purpose 36 A.2 Measuring conditions 36 A.3 Measuring the transmittance . 36 Bibliography 39 Figure 1 Layout diagram of measurement setup . 9 Figure 2 Side view of measuring concept for the hemispherical transmittance factor measurement with specular in
19、cluded or excluded . 12 Figure 3 Schematic arrangement of haze measurement . 14 Figure 4 Side view of measuring concept for the hemispherical transmittance factor measurement with specular included or excluded . 16 Figure 5 Measuring configuration for purity measurement 18 Figure 6 Test patterns for
20、 purity measurement . 18 Figure 7 Test pattern for 4 % window luminance 21 Figure 8 Example of luminance loading measurement 22 Figure 9 Measurement locations 23 Figure 10 Measuring patterns for gamma measurement . 26 Figure A.1 Measurement geometry using a sampling sphere 37 Table 1 Standard ambien
21、t conditions . 8 Table 2 Measuring conditions of the ports . 14 Table 3 Measured example for purity . 19 Table 4 Working example for colour variation index . 20 Table 5 Worked example for luminance loading . 22 Table 6 Example of luminance non-uniformity 23 Table 7 Example of colour uniformity measu
22、rement . 24 Table 8 Example of gamma measurement 26 Table 9 Reference areas for the colour reproduction range 28 Table 10 Example of measurement for the colour gamut variation ratio . 28 Table 11 Example of measurement for the directional electro-optical characteristic 30 4 IEC 62341-6-4:2017 IEC 20
23、17 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ORGANIC LIGHT EMITTING DIODE (OLED) DISPLAYS Part 6-4: Measuring methods of transparent properties FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical c
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31、) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property dama
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33、ication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all s
34、uch patent rights. International Standard IEC 62341-6-4 has been prepared by IEC technical committee 110: Electronic display devices. The text of this International Standard is based on the following documents: FDIS Report on voting 110/843/FDIS 110/866/RVD Full information on the voting for the app
35、roval of this International Standard can be found in the report on voting indicated in the above table. This document has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 62341 series, published under the general title Organic light emitting diode (OLED)
36、 displays, can be found on the IEC website. IEC 62341-6-4:2017 IEC 2017 5 The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific document. At this date,
37、 the document will be reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful
38、for the correct understanding of its contents. Users should therefore print this document using a colour printer. 6 IEC 62341-6-4:2017 IEC 2017 ORGANIC LIGHT EMITTING DIODE (OLED) DISPLAYS Part 6-4: Measuring methods of transparent properties 1 Scope This part of IEC 62341 specifies the standard mea
39、surement 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. 2 Normative refere
40、nces The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) a
41、pplies. IEC 62341-1-2, Organic light emitting diode (OLED) displays Part 1-2: Terminology and letter symbols IEC 62341-6-1, Organic light emitting diode (OLED) displays Part 6-1: Measuring methods of optical and electro-optical parameters IEC 62341-6-2, Organic light emitting diode (OLED) displays P
42、art 6-2: Measuring methods of visual quality and ambient performance ISO 9241-307, Ergonomics of human-system interaction Part 307: Analysis and compliance test methods for electronic visual displays ISO 11664-2, Colorimetry Part 2: CIE standard illuminants CIE 15-2004, Colorimetry 3 Terms and defin
43、itions For the purposes of this document, the terms and definitions given in IEC 62341-1-2 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing plat
44、form: available at http:/www.iso.org/obp 3.1 transmittance factor ratio of the radiant or luminous flux transmitted in the direction delimited by the given solid angle cone to that transmitted in the same direction and solid angle cone by a perfect transmitting diffuser identically irradiated or ill
45、uminated Note 1 to entry: When the term transmittance factor is used in this document, it refers to the photopically- weighted luminous flux. IEC 62341-6-4:2017 IEC 2017 7 3.2 spectral transmittance factor ratio of the spectral radiant flux transmitted in the direction delimited by the given solid a
46、ngle cone to that transmitted in the same direction by a perfect transmitting diffuser identically irradiated 3.3 transmitted haze percentage of transmitted luminance, passing through a specimen, which deviates from the incident light by no more than 0,044 rad (2,5) by forward scattering 3.4 purity
47、ratio of the luminance measured in the 0,2 region to the luminance of the total transmitted light Note 1 to entry: The purity is defined as how clearly the see-through image could be seen. The purity is derived from the measurement of distorted light due to diffraction or refraction. 3.5 on-screen p
48、erformance optical performance that can be measured on the transparent screen when viewing an image on the screen 4 Measuring conditions 4.1 Standard measuring environmental conditions Measurements shall be carried out under the standard environmental conditions: Temperature: 25 C 3 C Relative humid
49、ity: 25 % RH to 85 % RH Atmospheric pressure: 86 kPa to 106 kPa When different environmental conditions are used, they shall be noted in the measurement report. 4.2 Standard lighting conditions 4.2.1 Darkroom conditions The luminance contribution from the background illumination reflected off and/or transmitted through the test display shall be less than 0,01 cd/m 2or 1/20 of the displays black state luminance, whichever is lower. If these conditio
