IEC 61747-10-2:2014

IEC 61747-10-2 ®
Edition 1.0 2014-09
INTERNATIONAL
STANDARD
Liquid crystal display devices –
Part 10-2: Environmental, endurance and mechanical test methods –
Environmental and endurance
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IEC 61747-10-2 ®
Edition 1.0 2014-09
INTERNATIONAL
STANDARD
Liquid crystal display devices –

Part 10-2: Environmental, endurance and mechanical test methods –

Environmental and endurance
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
Q
ICS 31.120 ISBN 978-2-8322-1846-4

– 2 – IEC 61747-10-2:2014 © IEC 2014
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and symbols. 6
4 Standard atmospheric conditions for measurements and tests: . 6
5 Test methods . 6
5.1 General . 6
5.2 Rapid change of temperature: two-chamber method . 6
5.3 Specified change rate of temperature: one-chamber method . 8
5.4 Storage (at high temperature) . 9
5.5 Storage (at low temperature) . 10
5.6 Low air pressure . 11
5.7 Damp heat, steady state . 11
5.8 Damp heat, cyclic (12+12-hour cycle) . 12
5.9 Composite temperature/humidity cyclic test . 12
5.10 Light exposure . 15
5.10.1 Simulated solar radiation at ground level . 15
5.10.2 Simulated indoor daylight through window glass . 15
5.10.3 Other radiation. 16
5.11 ESD Test . 16
Bibliography . 17

Figure 1 – Temperature profile . 7
Figure 2 – Temperature profile . 9
Figure 3 – Preconditioning . 13
Figure 4 – Conditioning – Exposure to humidity followed by exposure to cold . 14
Figure 5 – Conditioning – Exposure to humidity not followed by exposure to cold . 15

Table 1 – Low test temperature . 6
Table 2 – High test temperature . 7
Table 3 – Low test temperature . 8
Table 4 – High test temperature . 8
Table 5 – Conditions of temperature and humidity . 11

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LIQUID CRYSTAL DISPLAY DEVICES –

Part 10-2: Environmental, endurance and mechanical test methods –
Environmental and endurance
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
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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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 61747-10-2 has been prepared by IEC technical committee 110:
Electronic display devices.
This first edition of IEC 61747-10-2 cancels and replaces Clauses 1 and 3 of the first edition
of IEC 61747-5 published in 1998. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Examples of the test conditions have been added to each test method;
b) References cited have been updated.

– 4 – IEC 61747-10-2:2014 © IEC 2014
The text of this standard is based on the following documents:
CDV Report on voting
110/528/CDV 110/575A/RVC
Full information on the voting for the approval of 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 parts in the IEC 61747 series, published under the general title Liquid crystal
display devices, can be found on the IEC website.
NOTE It is intended that the other clauses of IEC 61747-5:1998 will be replaced by new parts in the IEC 61747
series. The details of the intended changes are given in Annex D of IEC 61747-30-1:2012.
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.
A bilingual version of this publication may be issued at a later date.

LIQUID CRYSTAL DISPLAY DEVICES –

Part 10-2: Environmental, endurance and mechanical test methods –
Environmental and endurance
1 Scope and object
This part of IEC 61747 lists test methods applicable to liquid crystal display devices. It takes
into account, wherever possible, the environmental test methods outlined in IEC 60068.
NOTE Devices include cells and modules.
The object of this standard is to establish uniform preferred test methods with preferred
values for stress levels for judging the environmental properties of liquid crystal display
devices.
In case of contradiction between this standard and a relevant specification, the latter should
govern.
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 the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60068 (all parts), Environmental testing
IEC 60068-2-1, Environmental testing – Part 2-1: Tests – Test A: Cold
IEC 60068-2-2, Environmental testing – Part 2-2: Tests – Test B: Dry heat
IEC 60068-2-5, Environmental testing – Part 2-5: Tests – Test Sa: Simulated solar radiation at
ground level and guidance for solar radiation testing
IEC 60068-2-13, Basic environmental testing procedures – Part 2-13: Tests – Test M: Low air
pressure
IEC 60068-2-14:1984, Environmental testing – Part 2-14: Tests – Test N: Change of
temperature
IEC 60068-2-30, Environmental testing – Part 2-30: Tests – Test Db: Damp heat, cyclic (12 h
+ 12 h cycle)
IEC 60068-2-38:2009, Environmental testing – Part 2-38: Tests – Test Z/AD: Composite
temperature/humidity cyclic test
IEC 60068-2-78, Environmental tes
...