IEC TR 62908-1-3:2021

Touch and interactive displays - Part 1-3: General introduction of pen touch technology

IEC TR 62908-1-3:2021, which is a technical report, provides general information on pen touch technology with the aim toward standardization. This document includes an overview of the pen touch technology, critical performance characteristics, issues of characteristics measurements, and other information. The purpose of this documents is to provide an overview of the different products available in pen touch technology.

General Information

• Status: Published
• Publication Date: 27-Jul-2021
• ICS: 31.120 - Electronic display devices
• Technical Committee: TC 110 - Electronic displays
• Drafting Committee: WG 9 - TC 110/WG 9
• Current Stage: PPUB - Publication issued
• Start Date: 02-Sep-2021
• Completion Date: 28-Jul-2021

Standards Content (Sample)

IEC TR 62908-1-3 ®
Edition 1.0 2021-07
TECHNICAL
REPORT
colour
inside
Touch and interactive displays –
Part 1-3: Generic – General introduction to pen touch technology
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.: [phone]
3, rue de Varembé [e-mail]
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 corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc

If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: [e-mail].
IEC TR 62908-1-3 ®
Edition 1.0 2021-07
TECHNICAL
REPORT
colour
inside
Touch and interactive displays –

Part 1-3: Generic – General introduction to pen touch technology

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.120 ISBN 978-2-8322-1009-2

– 2 – IEC TR 62908-1-3:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 7
4 Generic information on pen touch technology . 8
4.1 General . 8
4.2 Classification . 8
4.3 Sensing technology for touch pen . 9
4.3.1 General . 9
4.3.2 Resistive type panel structure and sensing method . 10
4.3.3 Capacitive type panel structure and sensing method . 10
4.3.4 EMI type panel structure and sensing method . 11
4.3.5 Optical type panel structure and sensing method . 12
4.3.6 Ultrasonic type panel structure and sensing method . 12
4.4 Touch pen architecture . 13
4.4.1 General . 13
4.4.2 Passive stylus pen . 13
4.4.3 Active stylus pen . 14
5 Pen touch characteristics . 17
5.1 General . 17
5.2 Basic characteristics of pen touch . 18
5.3 Unique and important characteristics of pen touch . 18
5.3.1 General . 18
5.3.2 Tracking speed . 19
5.3.3 Writing comfort . 19
5.3.4 Position parallax . 19
5.3.5 Minimum area and minimum pressure . 20
5.3.6 Pressure sensitivity . 20
5.3.7 Tilt angle . 21
6 Application example for each pen touch technology . 21
6.1 General . 21
6.2 Passive stylus pen . 21
6.3 Active stylus pen . 21
6.3.1 General . 21
6.3.2 EMI pen . 21
6.3.3 Universal pen for PCAP type . 22
6.3.4 Type MPP . 22
6.3.5 Type AP . 23
6.3.6 Type WA Active ES stylus. 23
6.3.7 Type U (multiple use) . 23
7 Issue of future pen touch technology . 23
7.1 General . 23
7.2 Tracking speed . 23

7.3 Writing comfort . 24
7.4 Combinational use of finger and pen touch . 24
7.5 Palm rejection area and pen positional relationship . 24
8 Collaboration of hardware and software . 25
Bibliography . 26

Figure 1 – Resistive Type Panel Structure . 10
Figure 2 – Capacitive type panel structure . 11
Figure 3 – EMI type panel structure . 12
Figure 4 – Optical type panel structure . 12
Figure 5 – Ultrasonic type panel structure . 13
Figure 6 – Example of conductive fibre tip . 14
Figure 7 – Example of transparent disk tip . 14
Figure 8 – Example of exclusive pen . 14
Figure 9 – Example of EMI pens (Type WE) . 15
Figure 10 – Position parallax . 20
Figure 11 – Pen tablet for animation/illustration . 22
Figure 12 – Examples of note PCs . 23

Table 1 – Comparison among pointing devices . 8
Table 2 – Classification of touch pen . 9
Table 3 – Correspondence between touch panel and touch pen . 10
Table 4 – Performance comparison of touch pens for PCAP/EMI . 17
Table 5 – Basic pen touch characteristics . 18
Table 6 – Unique and important characteristics of touch pen . 18

– 4 – IEC TR 62908-1-3:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
TOUCH AND INTERACTIVE DISPLAYS –

Part 1-3: Generic – General introduction to pen touch technology

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
indi
...