IEC 62715-6-3:2020

IEC 62715-6-3 ®
Edition 1.0 2020-09
INTERNATIONAL
STANDARD
colour
inside
Flexible display devices –
Part 6-3: Mechanical test methods – Impact and hardness tests
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IEC 62715-6-3 ®
Edition 1.0 2020-09
INTERNATIONAL
STANDARD
colour
inside
Flexible display devices –
Part 6-3: Mechanical test methods – Impact and hardness tests

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.120 ISBN 978-2-8322-8913-6

– 2 – IEC 62715-6-3:2020  IEC 2020
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviated terms . 5
3.1 Terms and definitions. . 5
3.2 Abbreviated terms . 6
4 Standard atmospheric conditions . 6
5 Sample preparation . 6
5.1 General . 6
5.2 Sample preparation . 6
6 Mechanical test methods – Impact and hardness tests . 6
6.1 General . 6
6.2 Ball drop test . 6
6.2.1 General . 6
6.2.2 Purpose . 7
6.2.3 Test apparatus . 7
6.2.4 Test procedure . 7
6.3 Hitting test (tapping test) . 8
6.3.1 General . 8
6.3.2 Purpose . 8
6.3.3 Test apparatus for hitting test . 8
6.3.4 Test procedure . 8
6.3.5 Report . 9
6.4 Pendulum side impact test . 9
6.4.1 General . 9
6.4.2 Purpose . 10
6.4.3 Test apparatus . 10
6.4.4 Test procedure . 11
6.5 Scratch and abrasion test . 11
6.5.1 General . 11
6.5.2 Stylus scratch test . 11
6.5.3 Steel wool abrasion test. 12
Bibliography . 14

Figure 1 – Apparatus for ball drop test equipment . 7
Figure 2 – Example of apparatus for hitting test . 8
Figure 3 – Example of the tip movement and applied force . 9
Figure 4 – Apparatus for pendulum side impact test . 10
Figure 5 – Apparatuses for stylus scratch test using a stylus holder with different
pressures available by modulating the spring load . 12
Figure 6 – Apparatus for steel wool abrasion test . 13

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FLEXIBLE DISPLAY DEVICES –
Part 6-3: Mechanical test methods – Impact and hardness tests

FOREWORD
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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 62715-6-3 has been prepared by IEC technical committee 110:
Electronic displays.
The text of this International Standard is based on the following documents:
FDIS Report on voting
110/1225/FDIS 110/1247/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 62715 series, published under the general title Flexible display
devices, can be found on the IEC website.

– 4 – IEC 62715-6-3:2020  IEC 2020
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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FLEXIBLE DISPLAY DEVICES –
Part 6-3: Mechanical test methods – Impact and hardness tests

1 Scope
The object of this part of IEC 62715 is to define the standard test methods to evaluate the
mechanical robustness of flexible display modules, especially mechanical robustness
regarding impact and hardness, which include displays such as liquid crystal displays (LCDs),
e-paper, and organic light emitting diode (OLED) displays, against external forces applied to a
panel.
2 Normative references
The following documents are referred to in the text in a way that some or all of their content
constitutes requirements for this document. For dated references, only the edition cited
applies. For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 62341-5:2009, Organic light emitting diode displays – Part 5: Environmental testing
methods
ISO 19252, Plastics: Determination of scratch properties
ASTM D7207-13, Standard Test Method for Evaluation of Scratch Resistance of Polymeric
Coatings and Plastics Using an Instrumented Scratch Machine
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions.
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
pendulum side impact test
evaluation of the mechanical robustness properties of the material against an external impact
applied from the side using a pendulum
3.1.2
steel wool
special alloy steel which is processed into a thin and long fibrous form to be used as an
abrasive
Note 1 to entry:
...