IEC TR 62908-1-3:2021

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
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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
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