IEC 62715-6-1:2018
(Main)Flexible display devices - Part 6-1: Mechanical test methods - Deformation tests
Flexible display devices - Part 6-1: Mechanical test methods - Deformation tests
IEC 62715-6-1:2018 defines the standard test methods to evaluate the mechanical stability of flexible display modules, specifically mechanical stability against deformation, such as bending, rolling, twisting, and stretching. Display modules include displays such as LCD, e-paper, and OLED. This document takes into account, wherever possible, the mechanical test methods outlined under mechanical stress. This second edition cancels and replaces the first edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) changed the part title to differentiate it from other parts;
b) added new bending testing methods;
c) added detailed testing procedures.
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IEC 62715-6-1 ®
Edition 2.0 2018-04
INTERNATIONAL
STANDARD
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inside
Flexible display devices –
Part 6-1: Mechanical test methods – Deformation tests
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, including photocopying and microfilm, without permission in writing from
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copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, 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.
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iPad. Vocabulary (IEV) online.
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variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and
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IEC 62715-6-1 ®
Edition 2.0 2018-04
INTERNATIONAL
STANDARD
colour
inside
Flexible display devices –
Part 6-1: Mechanical test methods – Deformation tests
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.120 ISBN 978-2-8322-5614-5
– 2 – IEC 62715-6-1:2018 © IEC 2018
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Standard atmospheric conditions . 6
5 Specimen preparation . 7
5.1 General . 7
5.2 Sample preparation . 7
6 Mechanical stress test methods . 7
6.1 General . 7
6.2 Cyclic bending test . 8
6.2.1 General . 8
6.2.2 Purpose . 8
6.2.3 Test apparatus . 8
6.2.4 Test procedure . 9
6.2.5 Testing conditions and reporting . 9
6.3 Static bending test . 11
6.3.1 General . 11
6.3.2 Purpose . 11
6.3.3 Test apparatus . 11
6.3.4 Test procedure . 11
6.3.5 Testing conditions and reporting . 12
6.4 Combined bending test . 12
6.4.1 General . 12
6.4.2 Purpose . 12
6.4.3 Test apparatus . 12
6.4.4 Test procedure . 12
6.4.5 Testing conditions and reporting . 13
6.5 Rolling test. 14
6.5.1 General . 14
6.5.2 Purpose . 14
6.5.3 Test apparatus . 14
6.5.4 Test procedure . 15
6.5.5 Testing conditions and reporting . 16
6.6 Static rolling test . 16
6.6.1 General . 16
6.6.2 Purpose . 16
6.6.3 Test apparatus . 16
6.6.4 Test procedure . 17
6.6.5 Testing conditions and reporting . 17
6.7 Torsion test . 18
6.7.1 General . 18
6.7.2 Purpose . 18
6.7.3 Test apparatus . 18
6.7.4 Test procedure . 18
6.7.5 Testing conditions and reporting . 19
6.8 Tension test . 20
6.8.1 General . 20
6.8.2 Purpose . 20
6.8.3 Test apparatus . 20
6.8.4 Test procedure . 20
6.8.5 Testing conditions and reporting . 21
Bibliography . 22
Figure 1 – Apparatus for diverse cyclic bending tests . 10
Figure 2 – Apparatus for static bending test . 11
Figure 3 – Apparatus for combined bending tests consisting of the cyclic bending test
and static bending test . 13
Figure 4 – Apparatus for rolling test . 15
Figure 5 – Apparatus for diverse torsion tests . 19
Figure 6 – Apparatus for tension test . 21
– 4 – IEC 62715-6-1:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FLEXIBLE DISPLAY DEVICES –
Part 6-1: Mechanical test methods – Deformation tests
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 62715-6-1 has been prepared by IEC technical committee 110:
Electronic display devices.
This second edition cancels and replaces the first edition published in 2014. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) changed the part title to differentiate it from oth
...
IEC 62715-6-1 ®
Edition 2.0 2018-04
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Flexible display devices –
Part 6-1: Mechanical stress test methods – Deformation tests
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, including photocopying and microfilm, without permission in writing from
either IEC or IEC's 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 or
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, 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.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 21 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.
IEC publications search - webstore.iec.ch/advsearchform IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and
CISPR.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
IEC 62715-6-1 ®
Edition 2.0 2018-04
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Flexible display devices –
Part 6-1: Mechanical stress test methods – Deformation tests
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.120 ISBN 978-2-8322-5629-9
– 2 – IEC 62715-6-1:2018 RLV © IEC 2018
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Standard atmospheric conditions . 6
5 Evaluations – Visual evaluation of panel image quality Specimen preparation . 7
5.1 General . 7
5.2 Sample preparation . 7
6 Mechanical stress test methods . 7
6.1 General . 7
6.2 Cyclic bending test . 8
6.2.1 General . 8
6.2.2 Purpose . 8
6.2.3 Test apparatus . 8
6.2.4 Test procedure . 9
6.2.5 Testing conditions and reporting . 9
6.3 Static bending test . 12
6.3.1 General . 12
6.3.2 Purpose . 12
6.3.3 Test apparatus . 12
6.3.4 Test procedure . 12
6.3.5 Testing conditions and reporting . 13
6.4 Combined bending test . 12
6.4.1 General . 13
6.4.2 Purpose . 13
6.4.3 Test apparatus . 13
6.4.4 Test procedure . 14
6.4.5 Testing conditions and reporting . 15
6.5 Rolling test. 15
6.5.1 General . 15
6.5.2 Purpose . 16
6.5.3 Test apparatus . 16
6.5.4 Test procedure . 18
6.5.5 Testing conditions and reporting . 18
6.6 Static rolling test . 18
6.6.1 General . 19
6.6.2 Purpose . 19
6.6.3 Test apparatus . 19
6.6.4 Test procedure . 19
6.6.5 Testing conditions and reporting . 20
6.7 Torsion test . 20
6.7.1 General . 20
6.7.2 Purpose . 20
6.7.3 Test apparatus . 20
6.7.4 Test procedure . 20
6.7.5 Testing conditions and reporting . 22
6.8 Tension test . 20
6.8.1 General . 23
6.8.2 Purpose . 23
6.8.3 Test apparatus . 23
6.8.4 Test procedure . 23
6.8.5 Testing conditions and reporting . 24
Bibliography . 25
Figure 1 – Apparatus for diverse cyclic bending tests . 11
Figure 2 – Apparatus for static bending test . 12
Figure 3 – Apparatus for combined bending tests consisting of the cyclic bending test
and static bending test . 15
Figure 4 – Apparatus for rolling test . 17
Figure 5 – Apparatus for diverse torsion tests . 22
Figure 6 – Apparatus for tension test . 24
– 4 – IEC 62715-6-1:2018 RLV © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FLEXIBLE DISPLAY DEVICES –
Part 6-1: Mechanical stress test methods – Deformation tests
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.
This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.
...
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