JEC IEC 62977-3-6 Edition 1.0 2025-06 NTERNATIONAL STANDARD Electronicdisplays- Part 3-6: Evaluation of optical performance-Spatial resolution IEC 62977-3-6:2025-06(en) ICS 31.120; 31.260 ISBN 978-2-8327-0456-1 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright@2025IEC,Geneva,Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEc or IEC's member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. IEC Secretariat Tel.: +41 22 919 02 11 3, rue de Varembé [email protected] www.iec.ch CH-1211 Geneva 20 Switzerland About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. AboutIECpublications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigendum or an amendment might have been published. IECpublicationssearch IEC Products & Services Portal- products.iec.ch webstore.iec.ch/advsearchform Discover our powerful search engine and read freely all the The advanced search enables to find IEC publications by publications previews, graphical symbols and the glossary. criteria (reference number, text, With a subscription you willalways have access to up to a variety technical committee,...):It also gives information on date content tailored to your needs. projects, replaced and withdrawn publications. Electropedia-www.electropedia.org IEC Just Published - webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology. Stay up to date on all new IEC publications. Just Published containing more than 22 500 terminological entries in English details all new publications released. Available online and and French, with equivalent terms in 25 additional languages. once a month by email. Also known as the International Electrotechnical Vocabulary (IEV) online. IECCustomerServiceCentre-webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: [email protected]. Warning!Make sure that you obtained this publication from an authorized distributor. - 2 - IEC62977-3-6:2025IEC2025 CONTENTS FOREWORD. INTRODUCTION.. .6 Scope. 1 2 Normative references.. 3 Terms, definitions,abbreviated terms, letters and symbols.. 3.1 Terms and definitions.. 3.2 Abbreviated terms..... 3.3 Letters and symbols... 4 Standard measuring equipment... 4.1 General.. 9 4.2 Equipment .. .9 4.2.1 Digital pattern generator.. .9 4.2.2 Imaging LMD. 5 Standard measuring conditions ... 11 5.1 Standardmeasuringenvironmental conditions. 11 5.2 Standard measuring darkroom conditions. 11 5.3 Measurement locations on the screen... 5.4 Input signal condition... 12 6 Display contrast modulation measurement . 12 6.1 General. 12 6.2 Contrast modulation.. 12 6.3 Measuring method with grille pattern .. 12 6.4 Spatial resolution evaluation using contrast modulation 15 Display MTF measurement ... 7 16 7.1 General. 16 7.2 MTF concept for sampled imaging systems 7.3 Line-based method.. 8 Reporting.. .20 AnnexA(informative)Evaluationofspatialresolution.. .21 Annex B (normative)Edge-based LMD MTF measurement... ...22 Annex C (informative)Precautions for spatial resolution measurementmethods... C.1 Sampling issues in grille pattern luminance contrast measurement method.... 24 C.2 Constraints of the grille pattern luminance contrast and the line-based MTF measurement methods... 24 C.3 Colour evaluation ... 25 AnnexD(informative)Example of line-base