EN 61747-5-2:2011

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 gives the details of the quality assessment procedures and provides general rules for visual inspection of the active area of transmissive type active matrix colour liquid crystal display modules by the human eye. Furthermore, this standard includes defect definitions and the method for visual defect inspection. NOTE 1 - Mura is excluded from this standard because it was not clearly specified at the time this standard was developed. NOTE 2 - Restrictions on defect types, number, and sizes are specified in the quality contract (customer acceptance specification and incoming inspection specification) between panel and set makers.

Flüssigkristall-Anzeige-Bauelemente – Teil 5-2: Umwelt-, Lebensdauer- und mechanische Prüfverfahren – Sichtprüfung von Flüssigkristall-Anzeigemodulen mit Aktiv-Matrix-Adressierung (Aktiv-Matrix-LCDs)

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

La CEI 61747-5-2:2011 indique les détails des procédures d'évaluation de la qualité et fournit les règles générales pour l'inspection visuelle, par l'oeil humain, de la zone active des modules d'affichage LCD couleurs à matrice active du type transmissif. En outre, la présente norme comprend des définitions de défauts et la méthode d'inspection visuelle de ces défauts. NOTE 1 - L'effet Mura est exclu de la présente norme, car il n'était pas clairement spécifié au moment de l'élaboration de la présente norme. NOTE 2 - Les restrictions relatives aux types de défauts, à leur nombre et à leurs dimensions, sont spécifiées dans le contrat de qualité (spécification d'acceptation du client et spécification du contrôle de réception) entre fabricants de panneaux et assembleurs.

Prikazovalniki s tekočimi kristali - 5-2. del: Vizualni pregled modulov aktivno matričnih barvnih prikazovalnikov s tekočimi kristali

Ta del IEC 61747 podaja podrobnosti o postopkih ocenjevanja kakovosti in zagotavlja splošna pravila za vizualni pregled aktivnega območja presevne vrste modulov aktivno matričnih barvnih prikazovalnikov s tekočimi kristali s človeškim očesom. Poleg tega ta standard vključuje tudi definicije napak in metodo za vizualni pregled napak.

General Information

• Status: Withdrawn
• Publication Date: 04-Aug-2011
• Withdrawal Date: 20-Jul-2014
• ICS: 31.120 - Electronic display devices
• Technical Committee: CLC/SR 110 - Flat panel display devices
• Drafting Committee: IEC/TC 110 - IEC_TC_110
• Parallel Committee: IEC/TC 110 - IEC_TC_110
• Ref Project: SIST EN 61747-5-2:2011 - Liquid crystal display devices - Part 5-2: Visual inspection of active matrix colour liquid crystal display modules

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2011
3ULND]RYDOQLNLVWHNRþLPLNULVWDOLGHO9L]XDOQLSUHJOHGPRGXORYDNWLYQR
PDWULþQLKEDUYQLKSULND]RYDOQLNRYVWHNRþLPLNULVWDOL
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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
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).
__________
- 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
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

– 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

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
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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.

– 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
standar
...