IEC_TS_62715-5-2-2016.pdf

IEC TS 62715-5-2 Edition 1.0 2016-04 TECHNICA L SPECIFICA TION Flex ible display devices Part 5-2:Measuring methods of optical characteristics from the vantage point for curved displays IEC TS 62715-5-2:2016-04(en)colourinsideCopyright International Electrotechnical Commission THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC,Geneva,Switzer land All r ights reser ved.Unless otherwise specified,no part of this publication may be r eproduced or utilized in any f orm or by any means,electr onic or mechanical,including photocopying and microfilm,without per mission in writing from either IEC or IECs member National Committee in the country of the requester.If you have any questions about IEC copyright or have an enquiry about obtaining additional r ights to this publication,please contact the addr ess below or your local IEC member National Committee f or f ur ther information.IEC Central Office Tel.:+41 22 919 02 11 3,r ue de Varemb Fax:+41 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Switzerland www.iec.ch About the IEC The Inter national Electr otechnical Commission(IEC)is the leading global organization that prepares and publishes International Standards for all electr ical,electronic and related technologies.About IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sur e that you have the latest edition,a corr igenda or an amendment might have been published.IEC Cat alogue-webst ore.iec.ch/cat alogue The stand-alone application for consulting the entir e bibliographical information on IEC International Standards,Technical Specifications,Technical Reports and other documents.A vailable for PC,Mac OS,A ndroid Tablets and iPad.IEC publicat ions search-www.iec.ch/searchpub The advanced search enables to find IEC publications by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,replaced and withdraw n publications.IEC Just Published-webstore.iec.ch/justpublished Stay up to date on all new IEC publications.Just Published details all new publications released.A vailable online and also once a month by email.Elect ropedia-www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing 20 000 terms and definitions in English and French,w ith equivalent terms in 15 additional languages.A lso known as the International Electrotechnical Vocabular y (IEV)online.IEC Glossar y -std.iec.ch/glossary 65 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002.Some entries have been collected from earlier publications of IEC TC 37,77,86 and CISPR.IEC Customer Service Cent re-webst ore.iec.ch/csc If y ou wish to give us y our feedback on this publication or need further assistance,please contact the Customer Service Centre:csciec.ch.Copyright International Electrotechnical Commission IEC TS 62715-5-2 Edition 1.0 2016-04 TECHNICA L SPECIFICA TION Flex ible display devices Part 5-2:Measuring methods of optical characteristics from the vantage point for curved display s INTERNA TIONAL ELECTROTECHNICAL COMMISSION ICS 31.120 ISBN 978-2-8322-3300-9 R egist ered trademark of t he Int ernational Elect rotechnical Commission W arning!Make sure that y ou obtained this publication from an authorized distributor.colourinsideCopyright International Electrotechnical Commission 2 IEC TS 62715-5-2:2016 IEC 2016 CONTENTS FOREWORD.4 1 Scope.6 2 Normative ref erences.6 3 Terms,def initions and abbreviations.6 3.1 Terms and def initions.6 3.2 Abbreviations.8 4 Standard measuring equipment.8 4.1 Video signal generator.8 4.2 Non-contact LMD.8 5 Standard measuring conditions.9 5.1 Standard measuring environmental conditions.9 5.2 Power supply.9 5.3 Warm-up time.9 5.4 Standard measuring dark room conditions.9 5.5 Adjustment of display modules.9 5.6 Measuring geometry f or vantage point.10 5.6.1 General.10 5.6.2 Measuring geometry in horizontal vantage point.10 5.6.3 Measuring geometry in vertical vantage point.10 5.7 Measuring layout f or viewing position.11 5.7.1 General.11 5.7.2 Measuring layout by moving LMD.11 5.7.3 Measuring layout by rotating the display module.12 5.8 Minimum curvature radius f or the measurement.13 5.9 Screen visual angle.14 5.9.1 Screen visual angle of a f lat display module.14 5.9.2 Screen visual angle of concave type display module.14 6 Measuring methods of optical characteristics.15 6.1 General.15 6.1.1 Measuring items.15 6.1.2 Measuring point locations.15 6.1.3 Test pattern.16 6.2 Measuring method.17 6.2.1 Measuring method at the screen centre position.17 6.2.2 Measuring method at viewing angle position.18 6.3 Optical characteristics of white box by viewing angle.18 6.3.1 Luminance variation by viewing angle.18 6.3.2 Contrast ratio variation by viewing angle.19 6.3.3 Chromaticity variation by viewing angle.20 6.4 Optical characteristics of colour box by viewing angle.20 6.