SIST EN 61747-5-2:2011

SLOVENSKI STANDARD
SIST EN 61747-5-2:2011
01-oktober-2011
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Liquid crystal display devices - Part 5-2: Visual inspection of active matrix colour liquid
crystal display modules
Ta slovenski standard je istoveten z: EN 61747-5-2:2011
ICS:
31.120 Elektronske prikazovalne Electronic display devices
naprave
SIST EN 61747-5-2:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61747-5-2:2011

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SIST EN 61747-5-2:2011

EUROPEAN STANDARD
EN 61747-5-2

NORME EUROPÉENNE
August 2011
EUROPÄISCHE NORM

ICS 31.120


English version


Liquid crystal display devices -
Part 5-2: Environmental, endurance and mechanical test methods -
Visual inspection of active matrix colour liquid crystal display modules
(IEC 61747-5-2:2011)


Dispositifs d'affichage à cristaux liquides - Flüssigkristall-Anzeige-Bauelemente -
Partie 5-2: Méthodes d'essais Teil 5-2: Umwelt-, Lebensdauer- und
d'environnement, d'endurance et mechanische Prüfverfahren -
mécaniques - Sichtprüfung von Flüssigkristall-
Inspection visuelle des modules Anzeigemodulen mit Aktiv-Matrix
d'affichage à cristaux liquides couleurs à Adressierung (Aktiv-Matrix LCDs)
matrice active (IEC 61747-5-2:2011)
(CEI 61747-5-2:2011)





This European Standard was approved by CENELEC on 2011-07-21. 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, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland 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


© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61747-5-2:2011 E

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SIST EN 61747-5-2:2011
EN 61747-5-2:2011 - 2 -
Foreword
The text of document 110/287/FDIS, future edition 1 of IEC 61747-5-2, prepared by IEC TC 110, Flat
panel display devices, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC
as EN 61747-5-2 on 2011-07-21.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2012-04-21
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2014-07-21
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61747-5-2:2011 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 61747-6:2004 NOTE  Harmonized as EN 61747-6:2004 (not modified).
ISO 13406-2:2001 NOTE  Harmonized as EN ISO 13406-2:2001 (not modified).
__________

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SIST EN 61747-5-2:2011
- 3 - EN 61747-5-2:2011
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  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 61747-1 1998 Liquid crystal and solid-state display EN 61747-1 1999
+ A1 2003 devices - + A1 2003
Part 1: Generic specification


IEC 61747-5 1998 Liquid crystal and solid-state display EN 61747-5 1998
devices -
Part 5: Environmental, endurance and
mechanical test methods

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SIST EN 61747-5-2:2011

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SIST EN 61747-5-2:2011

IEC 61747-5-2
®

Edition 1.0 2011-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside


Liquid crystal display devices –
Part 5-2: Environmental, endurance and mechanical test methods – Visual
inspection of active matrix colour liquid crystal display modules

Dispositifs d'affichage à cristaux liquides –
Partie 5-2: Méthodes d'essais d'environnement, d'endurance et mécaniques –
Inspection visuelle des modules d'affichage à cristaux liquides couleurs à
matrice active

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX N
ICS 31.120 ISBN 978-2-88912-533-3

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

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SIST EN 61747-5-2:2011
– 2 – 61747-5-2  IEC:2011
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Visual inspection method and criteria . 12
4.1 Standard inspection conditions . 12
4.1.1 Ambient conditions . 12
4.1.2 Visual inspection conditions . 12
4.1.3 Electrical driving conditions . 12
4.2 Standard inspection method . 12
4.2.1 Setup of inspection equipment and liquid crystal display modules . 12
4.2.2 Inspector and limit sample for visual inspection . 13
4.2.3 Inspection and record of result . 13
4.3 Criteria . 13
4.3.1 Bright subpixel defects . 13
4.3.2 Dark subpixel defects . 13
4.3.3 Intermediate subpixel defects . 13
4.3.4 Cluster subpixel defects . 13
4.3.5 Bright line defect . 13
4.3.6 Dark line defect . 13
4.3.7 Scratch and dent defect . 14
4.3.8 Foreign material and bubble defect . 14
4.3.9 Light leakage defect . 14
Bibliography . 15

Figure 1 – Classification of defect by visual inspection. 7
Figure 2 – Example of bright subpixel and adjacent subpixel defects in case of RGB
primary colour display . 8
Figure 3 – Example of dark subpixel and adjacent subpixel defects in case of RGB
primary colour display . 9
Figure 4 – Examples of minimum distance between subpixel defects . 10
Figure 5 – Example of light leakage between top case and outer black matrix . 11
Figure 6 – Shape of scratch and dent defect . 14
Figure 7 – Shape of foreign material and bubble defect . 14

Table 1 – Criteria of scratch and dent defects . 14
Table 2 – Criteria for foreign material and bubble defect . 14

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SIST EN 61747-5-2:2011
61747-5-2  IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________

LIQUID CRYSTAL DISPLAY DEVICES –

Part 5-2: Environmental, endurance
and mechanical test methods –
Visual inspection of active matrix
colour liquid crystal display modules


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 61747-5-2 has been prepared by IEC technical committee 110:
Flat panel display devices.
The text of this standard is based on the following documents:
FDIS Report on voting
110/287/FDIS 110/306/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.

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SIST EN 61747-5-2:2011
– 4 – 61747-5-2  IEC:2011
A list of all parts of 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.
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 publicat
...