SIST EN 61747-30-1:2012

Liquid crystal display devices - Part 30-1: Measuring methods for liquid crystal display modules - Transmissive type

This part of IEC 61747 is restricted to transmissive liquid crystal display-modules using either segment, passive or active matrix and achromatic or colour type LCDs. Furthermore, the transmissive modes of transflective LCD modules with backlights ON are comprised in this document. An LCD module in combination with a touch-panel or a front-light-unit is excluded from the scope because measurements are frequently inaccurate. Touch-panels or front-lightunits are removed before measurement. Throughout the main body of this standard, an integrated backlight is assumed to provide the illumination for the measurements. Deviations from this (e.g. segmented displays without integrated backlights) may usually be handled in the same way as display modules with integrated backlight, if an external backlight is provided. However, in the case where one of the two situations should be handled differently, this will be specifically stated.

Flüssigkristall-Anzeige-Bauelemente - Teil 30-1 Messverfahren für Flüssigkristall-Anzeigemodule - Transmissive Ausführung

Dispositifs d'affichage a cristaux liquides - Partie 30-1: Méthodes de mesure pour les modules d'affichage à cristaux liquides - Type transmissif

La CEI 61747-30-1:2012 est limitée aux modules d'affichage à cristaux liquides de type transmissif utilisant des dispositifs à cristaux liquides de type soit à segments, soit à matrice passive ou active et achromatique ou couleur. Ce document présente également les modes transmissifs des modules LCD transflectifs avec rétro-éclairage allumé. Un module LCD combiné avec un panneau tactile ou une unité d'éclairage frontal ne relève pas du domaine d'application, car les mesures sont souvent erronées. Les panneaux tactiles ou les unités d'éclairage frontal sont retirés avant la mesure. Dans tout le corps de la présente norme, on suppose qu'un rétro-éclairage intégré assure l'éclairement utilisé pour les mesures. Tout écart par rapport à cette hypothèse (par exemple, afficheurs à segments sans rétro-éclairage intégré) peut généralement être traité de la même manière que les modules d'affichage avec rétro-éclairage intégré, si un rétro-éclairage externe est fourni. Toutefois, dans le cas où il convient de traiter différemment l'une des deux situations, cela sera spécifiquement indiqué. Cette première édition annule et remplace la CEI 61747-6 parue en 2004. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:  a) mise en correspondance de la structure du document avec la CEI 61747-6-2; et  b) des modifications techniques et rédactionnelles ont été effectuées.

Prikazovalniki s tekočimi kristali - 30-1. del: Merilne metode za module prikazovalnikov s tekočimi kristali - Prosojni tip

Ta del standarda IEC 61747 je omejen na module prosojnih prikazovalnikov s tekočimi kristali, ki uporabljajo segmentno, pasivno ali aktivno matrico, in akromatske ali barvne zaslone s tekočimi kristali (LCD). Poleg tega ta dokument vključuje tudi odsevne načine odbojno-prepustnih modulov zaslonov s tekočimi kristali z vključeno osvetlitvijo iz ozadja. Modul zaslona s tekočimi kristali s sledilno ploščico ali enoto za sprednjo osvetlitev ne spada v področje uporabe, ker meritve pogosto niso točne. Sledilne ploščice ali enote za sprednjo osvetlitev se pred merjenjem odstranijo. V glavnem delu tega standarda je predvideno, da svetlobo med meritvami zagotavlja vgrajena osvetlitev iz ozadja. Odstopanja od tega (npr. segmentni prikazovalniki brez vgrajene osvetlitve iz ozadja) se lahko običajno obravnavajo enako kot moduli prikazovalnikov z vgrajeno osvetlitvijo iz ozadja, če se zagotovi zunanja osvetlitev iz ozadja. Primeri, ko je treba enega od obeh primerov obravnavati drugače, so izrecno navedeni.

General Information

• Status: Published
• Publication Date: 20-Sep-2012
• ICS: 31.120 - Electronic display devices
• Technical Committee: I11 - Imaginarni 11
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 28-Aug-2012
• Due Date: 02-Nov-2012
• Completion Date: 21-Sep-2012
• Ref Project: EN 61747-30-1:2012 - Liquid crystal display devices - Part 30-1: Measuring methods for liquid crystal display modules - Transmissive type

Relations

• Replaces: SIST EN 61747-6:2005 - Liquid crystal and solid-state display devices -- Part 6: Measuring methods for liquid crystal modules - Transmissive type
• Effective Date: 28-Jan-2023
• Replaces: SIST EN 61747-6:2005 - Liquid crystal and solid-state display devices -- Part 6: Measuring methods for liquid crystal modules - Transmissive type
• Effective Date: 03-Apr-2012

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61747-30-1:2012
01-oktober-2012
1DGRPHãþD
SIST EN 61747-6:2005
3ULND]RYDOQLNLVWHNRþLPLNULVWDOLGHO0HULOQHPHWRGH]DPRGXOH
SULND]RYDOQLNRYVWHNRþLPLNULVWDOL3URVRMQLWLS
Liquid crystal display devices - Part 30-1: Measuring methods for liquid crystal display
modules - Transmissive type
Flüssigkristall-Anzeige-Bauelemente - Teil 30-1 Messverfahren für Flüssigkristall-
Anzeigemodule - Transmissive Ausführung
Dispositifs d'affichage a cristaux liquides - Partie 30-1: Méthodes de mesure pour les
modules d'affichage à cristaux liquides - Type transmissif
Ta slovenski standard je istoveten z: EN 61747-30-1:2012
ICS:
31.120 Elektronske prikazovalne Electronic display devices
naprave
SIST EN 61747-30-1:2012 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61747-30-1:2012

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SIST EN 61747-30-1:2012

EUROPEAN STANDARD
EN 61747-30-1

NORME EUROPÉENNE
August 2012
EUROPÄISCHE NORM

ICS 31.120 Supersedes EN 61747-6:2004


English version


Liquid crystal display devices -
Part 30-1: Measuring methods for liquid crystal display modules -
Transmissive type
(IEC 61747-30-1:2012)


Dispositifs d'affichage a cristaux liquides - Flüssigkristall-Anzeige-Bauelemente -
Partie 30-1: Méthodes de mesure pour les Teil 30-1 Messverfahren für Flüssigkristall-
modules d'affichage à cristaux liquides - Anzeigemodule -
Type transmissif Transmissive Ausführung
(CEI 61747-30-1:2012) (IEC 61747-30-1:2012)





This European Standard was approved by CENELEC on 2012-07-30. 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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre has the same status as the official versions.

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

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

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61747-30-1:2012 E

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SIST EN 61747-30-1:2012
EN 61747-30-1:2012 - 2 -

Foreword
The text of document 110/364/FDIS, future edition 1 of IEC 61747-30-1, prepared by IEC/TC 110
"Electronic display devices" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 61747-30-1:2012.

The following dates are fixed:
(dop) 2013-04-30
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2015-07-30

standards conflicting with the
document have to be withdrawn

This document supersedes EN 61747-6:2004.
EN 61747-30-1:2012 includes the following significant technical changes with respect to EN 61747-
6:2004:
a) the document structure was brought in line with EN 61747-6-2; and
b) various technical and editorial changes were made.
This standard is to be read in conjunction with EN 61747-1:1999, to which it refers, which gives details of
the quality assessment procedures, the inspection requirements, screening sequences, sampling
requirements, and the test and measurement procedures required for the assessment of liquid crystal
display modules.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.

Endorsement notice
The text of the International Standard IEC 61747-30-1:2012 was approved by CENELEC as a European
Standard without any modification.

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SIST EN 61747-30-1:2012
- 3 - EN 61747-30-1:2012
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

IEC 60050 Series International electrotechnical vocabulary - -


IEC 61747-1 - Liquid crystal and solid-state display devices - EN 61747-1 -
Part 1: Generic specification


IEC 61747-6-2 - Liquid crystal display devices - EN 61747-6-2 -
Part 6-2: Measuring methods for liquid crystal
display modules - Reflective type


ISO 9241-307 - Ergonomics of human-system interaction - EN ISO 9241-307 -
Part 307: Analysis and compliance test
methods for electronic visual displays


ISO 11664-2 - Colorimetry - EN ISO 11664-2 -
Part 2: CIE standard illuminants


CIE 15 2004 Colorimetry - -

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SIST EN 61747-30-1:2012

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SIST EN 61747-30-1:2012




IEC 61747-30-1

®


Edition 1.0 2012-06




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Liquid crystal display devices –

Part 30-1: Measuring methods for liquid crystal display modules – Transmissive

type




Dispositifs d'affichage à cristaux liquides –

Partie 30-1: Méthodes de mesure pour les modules d'affichage à cristaux


liquides – Type transmissif













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX X


ICS 31.120 ISBN 978-2-83220-147-3



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 61747-30-1:2012
– 2 – 61747-30-1 © IEC:2012
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviations . 8
3.1 Terms and definitions . 8
3.2 Abbreviations . 9
4 Illumination and illumination geometry . 9
4.1 General comments and remarks on the measurement of transmissive LCDs . 9
4.2 Viewing-direction coordinate system . 9
4.3 Standard illumination geometries . 10
5 Standard measurement equipment and set-up . 11
5.1 Light measuring devices (LMD) . 11
5.2 Positioning and alignment . 11
5.3 Standard measurement arrangements . 11
5.3.1 LMD conditions . 11
5.3.2 Effects of receiver inclination . 11
5.4 Standard locations of measurement field . 12
5.4.1 Matrix displays . 12
5.4.2 Segment displays . 13
5.5 Standard DUT operating conditions . 13
5.5.1 General . 13
5.5.2 Standard ambient conditions . 13
5.6 Standard measuring process . 13
6 Standard measurements and evaluations . 14
6.1 Luminance – photometric . 14
6.1.1 Purpose . 14
6.1.2 Measurement equipment . 14
6.1.3 Measurement method . 14
6.1.4 Definitions and evaluations . 15
6.2 Contrast ratio . 15
6.2.1 Purpose . 15
6.2.2 Measurement equipment . 15
6.2.3 Measurement method . 15
6.2.4 Definitions and evaluations . 16
6.2.5 Specified conditions . 16
6.3 Chromaticity and reproduction of colour . 17
6.3.1 Purpose . 17
6.3.2 Measurement equipment . 17
6.3.3 Measurement method: photoelectric tristimulus colorimetry . 17
6.3.4 Measurement method spectrophotometric colorimetry . 17
6.3.5 Definitions and evaluations . 17
6.3.6 Specified conditions . 19
6.4 Viewing angle range . 19
6.4.1 Purpose . 19

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SIST EN 61747-30-1:2012
61747-30-1 © IEC:2012 – 3 –
6.4.2 Measurement equipment . 19
6.4.3 Contrast and luminance based viewing angle range. 19
6.4.4 Viewing angle range without grey-level inversion . 20
6.4.5 Chromaticity based viewing angle range . 21
6.4.6 Visual quality-based viewing angle range . 21
6.5 Electro-optical transfer function – photometric . 22
6.5.1 Purpose . 22
6.5.2 Measurement equipment . 22
6.5.3 Measurement method . 22
6.5.4 Evaluation and representation . 22
6.6 Electro-optical transfer function – colorimetric . 23
6.6.1 Purpose . 23
6.6.2 Set-up . 23
6.6.3 Measurement method . 23
6.6.4 Definitions and evaluations . 23
6.7 Lateral variations (photometric, colorimetric) . 24
6.7.1 Purpose . 24
6.7.2 Measurement equipment . 24
6.7.3 Uniformity of luminance . 24
6.7.4 Uniformity of white . 25
6.7.5 Uniformity of chromaticity . 25
6.7.6 Uniformity of primary colours . 25
6.7.7 Cross-talk . 26
6.7.8 Mura . 28
6.7.9 Image sticking . 28
6.7.10 Specified conditions . 28
6.8 Reflectance from the active area surface . 28
6.8.1 Purpose . 28
6.8.2 Measurement equipment . 29
6.8.3 Measurement method . 29
6.8.4 Definitions and evaluation . 30
6.8.5 Specified conditions . 30
6.9 Spectral transmittance factor . 30
6.9.1 Purpose . 30
6.9.2 Measurement equipment . 31
6.9.3 Definitions and evaluation . 31
6.10 Temporal variations . 32
6.10.1 Response time . 32
6.10.2 Flicker / frame response (multiplexed displays) . 34
6.10.3 Critical flicker frequency . 36
6.10.4 Specified conditions . 36
6.11 Electrical characteristics . 37
6.11.1 Purpose . 37
6.11.2 Measurement equipment . 37
6.11.3 Measurement method . 37
6.11.4 Definitions and evaluations . 38
6.11.5 Specified conditions . 38
6.12 Warm-up characteristics . 39
6.12.1 Purpose . 39

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SIST EN 61747-30-1:2012
– 4 – 61747-30-1 © IEC:2012
6.12.2 Measurement equipment . 39
6.12.3 Measurement method . 39
6.12.4 Specified conditions . 40
Annex A (informative) Standard measuring conditions . 41
Annex B (informative) Devices for thermostatic control . 44
Annex C (informative) Measuring the electro-optical transfer function . 45
Annex D (informative) Planned future structure . 46
Bibliography . 47

Figure 1 – Representation of the viewing-direction (equivalent to the direction of
measurement) by the angle of inclination, θ and the angle of rotation (azimuth angle), φ
in a polar coordinate system . 10
Figure 2 – Shape of measuring spot on DUT for two angles of LMD inclination . 12
Figure 3 – Standard measurement positions are at the centres of all rectangles p -p . . 12
0 24
Figure 4 – Example of gray-scale inversion . 21
Figure 5 – Example of standard set-up for specular reflection measurements . 29
Figure 6 – Example of equipment for measurement of temporal variations . 32
Figure 7 – Relationship between driving signal and optical response times . 34
Figure 8 – Frequency characteristics of the integrator (response of human visual
system) . 35
Figure 9 – Example of power spectrum . 36
Figure 10 – Checker-flag pattern for current and power consumption measurements . 37
Figure 11 – Example of measuring block diagram for current and power consumption
of a liquid crystal display device. 39
Figure 12 – Example of warm-up characteristic . 40
Figure A.1 – Terminology for LMDs . 42

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SIST EN 61747-30-1:2012
61747-30-1 © IEC:2012 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

LIQUID CRYSTAL DISPLAY DEVICES –

Part 30-1: Measuring methods for liquid crystal display 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
in the subject dealt with 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
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 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 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 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) 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 61747-30-1 has been prepared by IEC technical committee 110:
Electronic display devices.
This first edition cancels and replaces IEC 61747-6 published in 2004. This edition constitutes
a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the document structure was brought in line with 61747-6-2; and
b) various technical and editorial changes were made.

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SIST EN 61747-30-1:2012
– 6 – 61747-30-1 © IEC:2012
The text of this standard is based on the following documents:
FDIS Rapport de vote
110/364/FDIS 110/380/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.
A list of all the parts in the IEC 61747 series, under the general title Liquid crystal display
devices, can be found on the IEC website.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
This standard is to be read in conjunction with IEC 61747-1 (1998), to which it refers, which
gives details of the quality assessment procedures, the inspection requirements, screening
sequences, sampling requirements, and the test and measurement procedures required for
the assessment of liquid crystal display modules.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.

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SIST EN 61747-30-1:2012
61747-30-1 © IEC:2012 – 7 –
INTRODUCTION
In order to achieve a useful and uniform description of the performance of liquid crystal
display (LCD) devices, specifications for commonly accepted relevant parameters are put
forward. These fall into the following categories:
a) general type specification (e.g. pixel resolution, diagonal, pixel layout);
b) optical specification (e.g. contrast ratio, response time, viewing-direction, crosstalk, etc.);
c) electrical specification (e.g. power consumption, electromagnetic compatibility);
d) mechanical specification (e.g. module geometry, weight);
e) specification of passed environmental endurance test;
f) specification of reliability and hazard / safety.
In most of the cases a) to f), the specification is self-explanatory. For some specification
points however, notably in the area of optical and electrical performance, the specified value
may depend on the measuring method.
The purpose of this standard is to indicate and list the procedure-dependent parameters and
to prescribe the specific methods and conditions that are to be used for their uniform
numerical determination. It is assumed that all measurements are performed by personnel
skilled in the general art of radiometric and electrical measurements as the purpose of this
standard is not to give a detailed account of good practice in electrical and optical
experimental physics. Furthermore, it shall be assured that all equipment is suitably calibrated
as is known to people skilled in the art and records of the calibration data and traceability are
kept.

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SIST EN 61747-30-1:2012
– 8 – 61747-30-1 © IEC:2012
LIQUID CRYSTAL DISPLAY DEVICES –

Part 30-1: Measuring methods for liquid crystal display modules –
Transmissive type



1 Scope
This part of IEC 61747 is restricted to transmissive liquid crystal display-modules using either
segment, passive or active matrix and achromatic or colour type LCDs. Furthermore, the
transmissive modes of transflective LCD modules with backlights ON are comprised in this
document. An LCD module in combination with a touch-panel or a front-light-unit is excluded
from the scope because measurements are frequently inaccurate. Touch-panels or front-light-
units are removed before measurement. Throughout the main body of this standard, an
integrated backlight is assumed to provide the illumination for the measurements. Deviations
from this (e.g. segmented displays without integrated backlights) may usually be handled in
the same way as display modules with integrated backlight, if an external backlight is
provided. However, in the case where one of the two situations should be handled differently,
this will be specifically stated.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only
...