IEC TR 63447-1:2023

IEC TR 63447-1 ®
Edition 1.0 2023-12
TECHNICAL
REPORT
Form factor of smart mobile devices –
Part 1: Impact on multimedia services

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IEC TR 63447-1 ®
Edition 1.0 2023-12
TECHNICAL
REPORT
Form factor of smart mobile devices –

Part 1: Impact on multimedia services

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.160.60  ISBN 978-2-8322-7878-9

– 2 – IEC TR 63447-1:2023 © IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms . 7
4 Overview . 7
4.1 General . 7
4.2 SMD history . 7
4.3 Usage trends of SMD . 8
4.4 Multimedia services . 9
5 Impact of SMD form factors on multimedia services . 10
5.1 Camera . 10
5.2 Display . 11
5.2.1 Display size changes . 11
5.2.2 Various screen form factors . 12
5.2.3 Deformable screen . 13
5.3 Touchscreen . 14
5.4 Waterproofness . 15
6 Potential new work items for IEC TC 100 . 16
Bibliography . 17

Figure 1 – Percentage of average SMD usage time per media in the USA . 8
Figure 2 – Percentage of average time spent with media in the world (smartphone) . 9
Figure 3 – Cameras in SMD . 10
Figure 4 – Example of camera lens structure to reduce the prominent shape . 10
Figure 5 – Example of changeable front camera structure . 11
Figure 6 – SMD display trend . 12
Figure 7 – Notch display . 12
Figure 8 – Pin hole and teardrop display . 12
Figure 9 – Dual punch hole display . 13
Figure 10 – Various SMD folding types . 14
Figure 11 – Usage example of rollable SMD . 14
Figure 12 – Example of finger touch and pen touch. 15

Table 1 – Classification of touch pen . 15

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FORM FACTOR OF SMART MOBILE DEVICES –

Part 1: Impact on multimedia services

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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IEC TR 63447-1 has been prepared by subcommittee Technical Area 1: Terminal for audio,
video and data services and content, of IEC technical committee 100: Audio, video and
multimedia systems and equipment. It is a Technical Report.
The text of this Technical Report is based on the following documents:
Draft Report on voting
100/4033/DTR 100/4067/RVDTR
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Technical Report is English.

– 4 – IEC TR 63447-1:2023 © IEC 2023
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 63447 series, published under the general title Form factor of smart
mobile devices, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
INTRODUCTION
Smart mobile devices (SMD) initially utilized communication services as a key element and are
designed to interact both with users and other devices connected to the network. Along with
advances in communication technology, various multimedia services other than communication
are available on SMDs because of the developments in SMD hardware performance.
SMDs have changed and have become more compact to make it easier for users to use
multimedia. For this purpose, hardware technology is developing.
This Technical Report introduces the main SMD form factors for multimedia services, explains
how to design an effective SMD, and finally summarizes new work items to manage in TC 100
in the near future.
– 6 – IEC TR 63447-1:2023 © IEC 2023
FORM FACTOR OF SMART MOBILE DEVICES –

Part 1: Impact on multimedia services

1 Scope
This document introduces various form factors of smart mobile devices and their impact on
multimedia services.
It does not deal with:
a) SMD performance to process multimedia services;
b) hardware performance and technology for each part, such as the battery, the antenna, the
display, the main processor, various sensors;
1 2
c) the characteristics of the SMD's operating system (Android , iPhone OS etc.);
d) the generation characteristics of telecommunication and radio frequency (including
wireless);
e) wearable devices, like smart watch, AR (augmented reality), VR (virtual reality) and so on.
2 Normative references
There are no normative references in this document.
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 terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1.1
smart mobile device
SMD
portable device with computing, networking, and capabilities to provide multimedia services,
which works independently and/or interactively with other devices
___________
Android is a trademark of a consortium of developers known as the Open Handset Alliance and commercially
sponsored by Google LLC. This information is given for the convenience of users of this document and does not
constitute an endorsement by IEC of the product named. Equivalent products may be used if they can be shown
to lead to the same results
iOS (formerly iPhone OS) is a trademark of Apple Inc. This information is given for the convenience of users of
this document and does not constitute an endorsement by IEC of the product named. Equivalent products may
be used if they can be shown to lead to the same results.

3.1.2
form factor
hardware design aspect that defines and prescribes the size, shape, and other physical
specifications of components, particularly in electronics
3.2 Abbreviated terms
AF auto focus
AR augmented reality
CMOS complementary metal-oxide semiconductor
DA display area
HDR high dynamic range
IP ingress protection
OIS optical image stabilization
OS operating system
OTT over the top
PDA personal digital assistant
SMD smart mobile device
USI Universal Stylus Initiative
4 Overview
4.1 General
Today's SMD technology has become so widespread that users often take for granted the ability
to access multimedia content, take pictures, access information from around the world, map
their locations, and more, all from the convenience of their handheld device.
There are arguably a few main technologies:
• smaller and ever-more efficient computer chips;
• wireless network infrastructure;
• advanced battery technology;
• high resolution display and sensitive touch screen.
4.2 SMD history
A device that featured an early touch screen and had the ability to send and receive emails and
faxes was available as a first personal communicator in 1994, named “Simon”. It was an
important demonstration of what was
...