EN 61747-6:2004

SLOVENSKI SIST EN 61747-6:2005

STANDARD
december 2005
Prikazalniški elementi s tekočimi kristali in polprevodniki – 6. del: Merilne
metode za module s tekočimi kristali – Presojni tip (IEC 61747-6:2004)
Liquid crystal and solid-state display devices – Part 6: Measuring methods for
liquid crystal modules – Transmissive type (IEC 61747-6:2004)
ICS 31.120 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 61747-6
NORME EUROPÉENNE
EUROPÄISCHE NORM May 2004
ICS 31.120
English version
Liquid crystal and solid-state display devices
Part 6: Measuring methods for liquid crystal modules –
Transmissive type
(IEC 61747-6:2004)
Dispositifs d'affichage à cristaux liquides Flüssigkristall- und Halbleiter-Anzeige-
et à semiconducteurs Bauelemente
Partie 6: Méthodes de mesure Teil 6: Messverfahren
pour les modules à cristaux liquides - für Flüssigkristall-Module –
Type transmissif Transmissive Ausführung
(CEI 61747-6:2004) (IEC 61747-6:2004)

This European Standard was approved by CENELEC on 2004-05-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 61747-6:2004 E
Foreword
The text of document 110/13/FDIS, future edition 1 of IEC 61747-6, prepared by IEC TC 110, Flat
panel display devices, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 61747-6 on 2004-05-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2005-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2007-05-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61747-6:2004 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 61747-6:2004
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
ISO 13406-1 1999 Ergonomic requirements for work with EN ISO 13406-1 1999
visual displays based on flat panels
Part 1: Introduction
ISO 13406-2 2001 Part 2: Ergonomic requirements for flat EN ISO 13406-2 2001
panel displays
NORME CEI
INTERNATIONALE IEC
61747-6
INTERNATIONAL
Première édition
STANDARD
First edition
2004-04
Dispositifs d'affichage à cristaux liquides
et à semiconducteurs –
Partie 6:
Méthodes de mesure pour les modules
à cristaux liquides –
Type transmissif
Liquid crystal and solid-state display devices –
Part 6:
Measuring methods for liquid crystal modules –
Transmissive type
© IEC 2004 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
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Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
PRICE CODE W
Commission Electrotechnique Internationale
International Electrotechnical Commission
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Pour prix, voir catalogue en vigueur
For price, see current catalogue

61747-6 © IEC:2004 – 3 –
CONTENTS
FOREWORD.5
1 Scope and object .9
2 Normative references.11
3 Chromaticity and pixel definitions .11
4 Standard measuring conditions .13
4.1 Standard measurement equipment and setup.13
4.2 Standard measurement positions .17
4.3 Standard device operation conditions.19
4.4 Standard ambient conditions.19
4.5 Standard measuring process .19
5 Measuring methods.21
5.1 Luminance and luminance uniformity .21
5.2 Warm-up characteristics.23
5.3 Response times (turn-on time, turn-off time, rise time and fall time) .25
5.4 Flicker (multiplexed displays) .31
5.5 Luminance contrast ratio.33
5.6 Peak viewing direction – Viewing angle range .37
5.7 Viewing angle range without gray-scale inversion .39
5.8 Specular reflectance from the active area surface .41
5.9 White chromaticity and its uniformity (matrix displays only).45
5.10 Reproduction of colour (matrix displays only) .47
5.11 Display resolution (high resolution matrix displays only) .49
5.12 Cross-talk.51
5.13 Power consumption.55
Annex A (informative) Standard measuring conditions .61
Annex B (informative)  Measuring methods for liquid crystal display devices
(segment type) .63
Figure 1 – Measuring system and its configuration.13
Figure 2 – Definition of polar coordinates θ, ϕ.15
Figure 3 – Standard measurement positions at the centres of all rectangles p0-p24 .17
Figure 4 – Example of warm-up characteristic .25
Figure 5 – Relationship between driving signal and optical response times .29
Figure 6 – Frequency characteristics of the integrator (response of human visual system) .33
Figure 7 – Example of power spectrum.33
Figure 8 – Example of gray-scale inversion.41
Figure 9 – Example of standard set-up for specular reflection measurements .43
Figure 10 – Checker-flag pattern for current and power consumption measurements .55
Figure 11 – Example of measuring block diagram for current and power consumption of
a liquid crystal display device .57

61747-6 © IEC:2004 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LIQUID CRYSTAL AND SOLID-STATE DISPLAY DEVICES –
Part 6: Measuring methods for liquid crystal modules –
Transmissive type
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization 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 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
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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
agreement 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) IEC 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 used 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 corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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 and IEC National Committees for any personal injury, property damage or
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expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) 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 rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61747-6 has been prepared by IEC technical committee 110: Flat
panel display devices.
This part of IEC 61747 series completes the full revision of IEC 60747-5(1992) and its
amendments.
The text of this standard is based on the following documents:
FDIS Report on voting
110/13/FDIS 110/19/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.

61747-6 © IEC:2004 – 7 –
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This standard should be read in conjunction with IEC 61747-1.
The committee has decided that the contents of this publication will remain unchanged until
2005. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
61747-6 © IEC:2004 – 9 –
LIQUID CRYSTAL AND SOLID-STATE DISPLAY DEVICES –
Part 6: Measuring methods for liquid crystal modules –
Transmissive type
1 Scope and object
This part of IEC 61747 gives details of the quality assessment procedures, inspection
requirements, screening sequences, sampling requirements and test and measurement
procedures requi
...