IEC 62341-6-1:2017

Overview

IEC 62341-6-1:2017 - "Organic light emitting diode (OLED) displays - Part 6‑1: Measuring methods of optical and electro‑optical parameters" - defines standard measurement conditions and methods for determining the optical and electro‑optical parameters of flat OLED display modules and, where specified, OLED panels. Measurements are taken in a controlled dark room environment. This second edition (2017) updates the first edition (2009) and extends methods to modern display architectures.

Key topics and technical requirements

The standard specifies practical, repeatable test methods and setups used by test labs and manufacturers. Major topics include:

• Standard measuring conditions

  • Dark‑room requirements, environmental conditions and instrument setup
  • Standard test patterns, starting conditions and measurement positions on the active area

• Optical and electro‑optical parameter measurements

  • Luminance (maximum, full‑screen and windowed), luminance uniformity, and luminance current efficiency
  • Chromaticity and colour: colour coordinates, correlated colour temperature (CCT), colour non‑uniformity
  • Colour gamut and colour gamut volume: methods to derive gamut area and CIELAB colour gamut volume in dark‑room conditions
  • Contrast ratio measured in dark‑room conditions (dark room contrast)
  • Colour additivity, white point characterization and white field CCT

• Advanced considerations for modern OLEDs

  • Applicability to multi‑primary displays and RGBW/WRGB sub‑pixel structures
  • APL (average picture level) loading methods to characterize how luminance depends on on‑screen content
  • Procedures for power consumption measurement, response time (passive matrix), veiling glare, and methods to obtain CCT from chromaticity coordinates

Practical applications - who uses this standard

IEC 62341-6-1 is used by:

• Display manufacturers for design verification, production control and datasheet specifications
• Independent test laboratories for consistent, repeatable measurements and benchmarking
• OEMs / product integrators when validating panels for TVs, smartphones, tablets, automotive displays and signage
• R&D teams developing multi‑primary or RGBW OLED architectures, to quantify APL effects and colour volume
• Procurement and compliance teams specifying objective optical and electro‑optical acceptance criteria

Related standards

• Part of the IEC 62341 family covering OLED displays; consult other parts for module/panel mechanical, electrical or interface requirements and for the latest corrigenda or amendments.

Keywords: IEC 62341-6-1, OLED displays, measuring methods, optical parameters, electro‑optical parameters, luminance, colour gamut, CIELAB, dark room, APL loading, RGBW, multi‑primary displays.