Overview
IEC TR 62908-1-3:2021 - “Touch and interactive displays – Part 1-3: Generic – General introduction to pen touch technology” is an IEC Technical Report that provides a high-level, vendor-neutral overview of pen touch technology aimed at supporting future standardization. The document surveys sensing methods, pen types (passive and active styluses), critical pen performance characteristics, issues in measuring those characteristics, and examples of product categories that use pen input. It also discusses hardware/software collaboration for reliable pen interaction and emerging technology trends such as digital ink capture.
Key topics covered
- Sensing technologies for pen input: classification and descriptions of common panel sensing methods including resistive, capacitive (projected capacitive / PCAP), electromagnetic interference (EMI), optical and ultrasonic approaches.
- Pen architectures: distinction between passive stylus (conductive tips, simple pointing) and active stylus (powered pens that can report pressure, tilt, buttons, unique IDs). The report further classifies active pen subtypes relevant to PCAP and EMI ecosystems.
- Pen touch characteristics: identification of critical performance metrics such as tracking speed, position parallax, minimum contact area and pressure, pressure sensitivity, tilt angle, and writing comfort.
- Measurement and testing issues: discussion of challenges in characterizing pen performance and reproducible measurement approaches to support standardization.
- Applications and product examples: mapping of pen technologies to product classes (note PCs, tablets, pen tablets for illustration/animation, kiosks, medical and industrial terminals).
- Collaboration of hardware and software: highlights the need for co-design (touch panel, pen firmware, OS/device drivers and application software) to realize features like palm rejection and digital ink fidelity.
Practical applications and who uses this standard
- Device manufacturers (display and touch-panel makers) use the report to align product features and testing strategies.
- System integrators and OEMs select appropriate pen technologies for laptops, tablets, kiosks, medical devices, ATMs and industrial HMIs.
- Test laboratories and QA teams reference the report when developing measurement procedures for pen performance.
- Software developers and UX designers use the characteristic definitions (e.g., pressure curves, tilt handling, latency) to design responsive digital ink and handwriting experiences.
- Procurement and standards committees consult the report to define requirements in tenders and future normative standards.
Related standards
- IEC 60068-1 (Environmental testing - general guidance)
- IEC 62908-1-2 (Touch and interactive displays - Terminology and letter symbols)
Keywords: IEC TR 62908-1-3:2021, pen touch technology, touch and interactive displays, stylus, active stylus, passive stylus, PCAP, EMI, digital ink, pressure sensitivity, position parallax, tracking speed.
Открыть превью (PDF)Touch and interactive displays - Part 1-3: Generic – General introduction to pen touch technology