Overview
CEN ISO/TR 9241-309:2015 (identical to ISO/TR 9241-309:2008) is a technical report in the ISO 9241 series titled Ergonomics of human‑system interaction - Part 309: Organic light‑emitting diode (OLED) displays. It introduces OLED display technology and provides guidance for the ergonomic assessment of OLED‑based visual displays. The document is informative (a Technical Report) and focuses on human‑system interaction aspects relevant to OLED displays, including technology description, measurement guidance and intended contexts of use.
Key topics and technical points
- Scope: Guidelines specifically for organic light‑emitting diode (OLED) displays within the ISO 9241 visual display subseries.
- OLED technology overview: Explanation of AM‑OLED panel structure (substrate, organic layers, reflective electrode), pixel composition (three or more colour sub‑pixels) and emission types (bottom vs top emission). Basic OLED operation: electron/hole injection, exciton formation and light emission.
- Typical device characteristics:
- Example dimensional specs (e.g., pixel pitch, 480 × 3 × 320 pixel arrangement, active diagonal ~3.8 in).
- Colour reproduction and chromaticity considerations.
- Comparison with other VDT technologies (CRT, LCD, PDP): emissive electroluminescence, thin faceplate, fixed‑pixel architecture, isotropic optical behaviour.
- Intended contexts of use:
- Indoor design illuminance up to ~600 lx; recommended illuminants CIE A and D65.
- Viewing direction: nominally perpendicular with inclination Θ up to 80° and azimuth Φ 0°–360°.
- Viewing distances similar to handheld and stationary devices.
- Assessment guidelines:
- Based on initial optical measurements in accredited laboratories (note: discussions referenced with JEITA).
- Noted results: OLEDs show optical isotropy (luminance deviation ≤ ~12% within certain angles), minimal geometric distortion, uniform focus across screen and fast response time (advantageous for motion pictures).
- Suggests existing compliance routes (e.g., methods used for PDP indoor displays) can serve as a basis for OLED assessment.
Applications and practical value
- Use this TR to inform ergonomic evaluation, specification and procurement of OLED displays for:
- Mobile and handheld devices, consumer electronics (smartphones, wearables), and stationary displays.
- User interface and UX design where display ergonomics (readability, viewing angle, motion rendering) matter.
- Test laboratories developing optical measurement protocols for OLED panels.
- Product managers, procurement specialists and regulatory bodies specifying visual display requirements.
Who should use this standard
- Ergonomists and human factors professionals
- Display and device manufacturers (design and QA teams)
- Test laboratories and certification bodies
- UI/UX designers and system integrators
- Procurement and compliance officers
Related standards
- ISO 9241 series (visual display subseries): Parts 300–307, 302 (terminology), 303 (requirements), 304–307 (test/assessment methods), and other ISO 9241 parts addressing usability and accessibility.
Keywords: CEN ISO/TR 9241-309:2015, ISO/TR 9241-309, OLED displays, ergonomics, human‑system interaction, AM‑OLED, visual display assessment, ISO 9241.
