Overview
IEC 62629-22-1:2016 - "3D display devices - Part 22-1: Measuring methods for autostereoscopic displays – Optical" - specifies standardized optical measurement methods for autostereoscopic (glasses-free 3D) displays. It defines general measuring procedures for two-view, multi-view, and integral imaging displays and introduces additional 3D crosstalk metrics (notably offset crosstalk and 3D pixel crosstalk) in this edition.
This standard is part of the IEC 62629 series and focuses on repeatable, laboratory-grade methods to quantify optical performance, enabling consistent specification, benchmarking and quality control of autostereoscopic displays.
Key Topics and Requirements
The standard covers measurement scope, instrumentation and test procedures, including:
- Standard measuring conditions: environmental requirements (temperature, humidity), illumination control and standard measurement setups.
- Measuring equipment and aperture: guidance on light measuring devices, probe apertures and spatial sampling.
- Measurement geometry: designed viewing distance, measurement area and layout for centre and multi-point sampling.
- Optical parameters and procedures:
- Maximum luminance direction and angular luminance profiling
- Lobe angle and lobe angle variation across the screen
- Luminance, screen luminance uniformity and angular luminance variation
- White chromaticity, chromaticity uniformity and angular chromaticity variation
- 3D crosstalk metrics: luminance-component ratio crosstalk, 3D crosstalk angular/ spatial variation, offset crosstalk, and 3D pixel crosstalk
- Integral imaging-specific methods: 1D/2D integral display optical measurements.
- Reporting: standardized measurement points, data presentation and example tables/figures for reproducible reporting.
- Informative annexes: principles of autostereoscopic displays, angular luminance profiles, IPD-based crosstalk analysis and view density (motion parallax smoothness).
Practical Applications and Who Uses This Standard
IEC 62629-22-1 is targeted to professionals involved in development, testing and procurement of autostereoscopic 3D systems:
- Display manufacturers - design verification, optical performance tuning and competitive benchmarking.
- Test laboratories / QA teams - repeatable measurement procedures for product certification and supplier validation.
- R&D engineers - evaluating crosstalk sources (offset/ pixel crosstalk), optimizing lenticular or parallax barrier designs.
- System integrators and OEMs - compliance checks for display module selection and system-level quality acceptance.
- Procurement/spec writers - writing measurable optical requirements for contracts and datasheets.
- Content creators / UX designers - understanding viewing envelopes, lobe angles and motion-parallax smoothness to optimize 3D content delivery.
Related Standards
- Part of the IEC 62629 series on 3D display devices; users should consult other parts of IEC 62629 for electrical, functional and additional measurement methods and normative references.