IEC 61747-6-2-2011 Liquid crystal display devices - Part 6-2 Measuring methods for liquid crystal display modules - Reflective type《液晶和固态显示器件.第6-2部分 液晶显示模组的测量方法.反射类型》.pdf

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1、 IEC 61747-6-2 Edition 1.0 2011-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Liquid crystal display devices Part 6-2: Measuring methods for liquid crystal display modules Reflective type Dispositifs daffichage cristaux liquides Partie 6-2: Mthodes de mesure pour les modules daffichage cristaux liq

2、uides Type rflexible IEC 61747-6-2:2011 colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2011 IEC, 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, incl

3、uding photocopying and microfilm, without permission 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 rights to this publication, please contact the address below

4、or your local IEC member National Committee for further information. Droits de reproduction rservs. Sauf indication contraire, aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie et l

5、es microfilms, sans laccord crit de la CEI ou du Comit national de la CEI du pays du demandeur. Si vous avez des questions sur le copyright de la CEI ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de la CEI de

6、 votre pays de rsidence. IEC Central Office 3, rue de Varemb CH-1211 Geneva 20 Switzerland Email: inmailiec.ch Web: www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical,

7、electronic and related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. Catalogue of IEC publications: www.iec.ch/searchp

8、ub The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,). It also gives information on projects, withdrawn and replaced publications. IEC Just Published: www.iec.ch/online_news/justpub Stay up to date on all new IEC publications. Just

9、 Published details twice a month all new publications released. Available on-line and also by email. Electropedia: www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions in English and French, with equivalent ter

10、ms in additional languages. Also known as the International Electrotechnical Vocabulary online. Customer Service Centre: www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service Centre FAQ or contact us: Email

11、: csciec.ch Tel.: +41 22 919 02 11 Fax: +41 22 919 03 00 A propos de la CEI La Commission Electrotechnique Internationale (CEI) est la premire organisation mondiale qui labore et publie des normes internationales pour tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A pro

12、pos des publications CEI Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Catalogue des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm Le Catalogue en-lign

13、e de la CEI vous permet deffectuer des recherches en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Il donne aussi des informations sur les projets et les publications retires ou remplaces. Just Published CEI: www.iec.ch/online_news/justpub Restez inform sur les nouvelles publ

14、ications de la CEI. Just Published dtaille deux fois par mois les nouvelles publications parues. Disponible en-ligne et aussi par email. Electropedia: www.electropedia.org Le premier dictionnaire en ligne au monde de termes lectroniques et lectriques. Il contient plus de 20 000 termes et dfinitions

15、en anglais et en franais, ainsi que les termes quivalents dans les langues additionnelles. Egalement appel Vocabulaire Electrotechnique International en ligne. Service Clients: www.iec.ch/webstore/custserv/custserv_entry-f.htm Si vous dsirez nous donner des commentaires sur cette publication ou si v

16、ous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61747-6-2 Edition 1.0 2011-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Liquid crystal display devices Part 6-2: Measuring methods for liquid crystal displa

17、y modules Reflective type Dispositifs daffichage cristaux liquides Partie 6-2: Mthodes de mesure pour les modules daffichage cristaux liquides Type rflexible INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XA ICS 31.120 PRICE CODE CODE PRIX ISBN 978-2-88912-507-4

18、 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale colour inside 2 61747-6-2 IEC:2011 CONTENTS FOREWORD . 5 INTRODUCTION . 7 1 Scope . 8 2 Normative references . 8 3 Illumination and illumination geometry 9 3.1 General

19、 comments and remarks on the measurement of reflective LCDs . 9 3.2 Viewing-direction coordinate system 9 3.3 Basic illumination geometries 10 3.4 Realization of illumination geometries . 10 3.4.1 General . 10 3.4.2 Directional illumination 11 3.4.3 Ring-light illumination 11 3.4.4 Conical illuminat

20、ion . 12 3.4.5 Hemispherical illumination . 12 4 Standard measurement equipment and set-up 13 4.1 Light measuring devices (LMD) . 13 4.2 Positioning and alignment . 13 4.3 Standard measurement arrangements . 13 4.3.1 General . 13 4.3.2 Directional illumination 14 4.3.3 Ring-light illumination 15 4.3

21、.4 Conical illumination . 15 4.3.5 Hemispherical illumination . 16 4.3.6 Other illumination conditions 17 4.4 Standard specification of measurement conditions 17 4.4.1 Illumination conditions . 17 4.4.2 LMD conditions 19 4.4.3 Unwanted effects of receiver inclination . 20 4.4.4 Control and suppressi

22、on of front-surface reflections 20 4.5 Working standards and references 21 4.5.1 Diffuse reflectance standard 21 4.5.2 Specular reflectance standard . 21 4.6 Standard locations of measurement field . 22 4.6.1 Matrix displays 22 4.6.2 Segment displays 22 4.7 Standard DUT operating conditions . 23 4.7

23、.1 General . 23 4.7.2 Standard ambient conditions . 23 4.8 Standard measuring process . 23 5 Standard measurements and evaluations . 24 5.1 Reflectance Photometric. 24 5.1.1 Purpose . 24 5.1.2 Measuring equipment 24 5.1.3 Measuring method . 24 5.1.4 Definitions and evaluations 25 5.2 Contrast ratio

24、26 61747-6-2 IEC:2011 3 5.2.1 Purpose . 26 5.2.2 Measuring equipment 26 5.2.3 Measurement method 26 5.2.4 Definitions and evaluations 27 5.3 Peak viewing direction / viewing angle range . 27 5.3.1 Purpose / definition 27 5.3.2 Measuring equipment 27 5.3.3 Viewing angle 27 5.3.4 Viewing angle range w

25、ithout gray-level inversion . 28 5.3.5 Specular reflectance from the active area surface . 29 5.4 Chromaticity 31 5.4.1 Purpose . 31 5.4.2 Measuring equipment 31 5.4.3 Measuring method . 31 5.4.4 Definitions and evaluations 31 5.4.5 Specified conditions 32 5.5 Electro-optical transfer function Photo

26、metric 33 5.5.1 Purpose . 33 5.5.2 Set-up . 33 5.5.3 Procedure 33 5.5.4 Evaluation and representation . 33 5.6 Electro-optical transfer function Colorimetric 34 5.6.1 Purpose . 34 5.6.2 Set-up . 34 5.6.3 Procedure 34 5.6.4 Evaluation and representation . 35 5.7 Lateral variations (photometric, color

27、imetric) . 35 5.7.1 Purpose . 35 5.7.2 Measuring equipment 35 5.7.3 Uniformity of reflectance 36 5.7.4 Uniformity of white . 36 5.7.5 Uniformity of chromaticity 37 5.7.6 Uniformity of primary colours . 37 5.7.7 Cross-talk 38 5.7.8 Specified conditions 40 5.8 Temporal variations . 40 5.8.1 Response t

28、ime 40 5.8.2 Flicker / frame response (multiplexed displays) . 43 5.8.3 Specified conditions 44 5.9 Electrical characteristics 45 5.9.1 Purpose . 45 5.9.2 Measuring instruments 45 5.9.3 Measuring method . 45 5.9.4 Definitions and evaluations 45 5.9.5 Specified conditions 46 Annex A (informative) Sta

29、ndard measuring conditions . 47 Bibliography 51 4 61747-6-2 IEC:2011 Figure 1 Representation of the viewing-direction (equivalent to the direction of measurement) by the angle of inclination, and the angle of rotation (azimuth angle), in a polar coordinate system 9 Figure 2 Directional illumination

30、with a flat source disk 10 Figure 3 Realization alternatives for directional illumination . 11 Figure 4 Examples of ring-light illumination 12 Figure 5 Examples of conical illumination with a spherical dome (left) and an integrating sphere with large aperture (right) . 12 Figure 6 Examples of hemisp

31、herical illumination 13 Figure 7 Side-view of the measuring set-up using directional illumination 14 Figure 8 Side-view of the ring-light illumination measuring set-up 15 Figure 9 Side-view of the conical illumination measuring set-up . 16 Figure 10 Side-view of the hemispherical illumination measur

32、ing set-up 17 Figure 11 Hemispherical illumination with gloss-trap (GT) opposite to receiver inclination . 18 Figure 12 Normalized illuminance at the location of the measuring spot . 18 Figure 13 Lines of equal chromaticity differences u (left), v (right) 19 Figure 14 Shape of measuring spot on DUT

33、for two angles of receiver inclination 20 Figure 15 Reflections from the first surface of a transparent medium (glass substrate, polarizer, etc.) superimposed to the reflection component that is modulated by the display device . 21 Figure 16 Standard measurement positions are at the centres of all r

34、ectangles p0- p24. Height and width of each rectangle is 20 % of display height and width respectively. . 22 Figure 17 Example of standard set-up for specular reflection measurements . 30 Figure 18 Example of equipment for measurement of temporal variations 41 Figure 19 Relationship between driving

35、signal and optical response times . 42 Figure 20 Frequency characteristics of the integrator (response of human visual system) . 44 Figure 21 Example of power spectrum . 44 Figure 22 Checker-flag pattern for current and power consumption measurements 45 Figure 23 Example of measuring block diagram f

36、or current and power consumption of a liquid crystal display device 46 Figure A.1 Coordinate system for measurement of the BRDF, index “i“ for incident light, index “r“ for reflected light. Directions are described by two angles, and (inclination and azimuth) in a polar coordinate system as shown 48

37、 Figure A.2 Terminology for LMDs . 49 61747-6-2 IEC:2011 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ LIQUID CRYSTAL DISPLAY DEVICES Part 6-2: Measuring methods for liquid crystal display modules Reflective type FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organiza

38、tion for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC

39、 publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with

40、 may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by ag

41、reement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IE

42、C Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are us

43、ed or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the c

44、orresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible

45、for any services carried out by independent certification bodies. 6) 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

46、 and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8

47、) Attention is drawn to the Normative references cited in this publication. 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 rig

48、hts. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61747-6-2 has been prepared by IEC technical committee 110: Flat panel display devices. This standard should be read together with the generic specification to which it refers. The text o

49、f this standard is based on the following documents: FDIS Report on voting 110/281/FDIS 110/299/RVD Full information on the voting for the approval on this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. 6 61747-6-2 IEC:2011 A list of all the parts in

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