IEC 62899-502-2-2019 PDF

Full title and description

Printed electronics - Part 502-2: Quality assessment - Organic light emitting diode (OLED) elements - Combined mechanical and environmental stress test methods for flexible OLED elements. This International Standard specifies combined mechanical and environmental stress test methods for flexible OLED elements manufactured by printing technologies, and describes representative mechanical stress tests such as static and cycling vending tests and dynamic and static rolling tests.

Abstract

IEC 62899-502-2:2019 provides standardized test procedures to evaluate the mechanical robustness and environmental durability of flexible printed OLED elements when subjected to combined mechanical deformation and environmental exposures. The document focuses on test method definitions, test sequences and conditions relevant to flexible OLEDs produced by printing methods, enabling repeatable quality assessment across manufacturers and test laboratories.

General information

• Status: Published / Definitive.
• Publication date: 24 July 2019 (Edition 1.0).
• Publisher: International Electrotechnical Commission (IEC), TC 119 Printed Electronics.
• ICS / categories: 29.035.01; 31.260.
• Edition / version: Edition 1.0 (2019).
• Number of pages: 24 pages.

Key bibliographic and administrative details above follow the IEC publication record for this standard.

Scope

IEC 62899-502-2:2019 applies to flexible OLED elements fabricated using printing methods and establishes combined mechanical and environmental stress test methods to assess their quality and durability. The scope covers specified mechanical stress tests (for example static and cycling vending tests, dynamic and static rolling tests) performed either alone or in combination with environmental stress (temperature, humidity, etc.) to simulate real-use deformation and ageing conditions. It is intended for quality assessment and reliability evaluation of flexible printed OLED elements rather than lighting products.

Key topics and requirements

• Definitions and test specimen preparation and orientation for flexible printed OLED elements.
• Combined mechanical/environmental test sequences to replicate bending/rolling plus temperature and humidity exposures.
• Static and cycling vending (tension/compression) tests to assess endurance under repeated deformation.
• Dynamic and static rolling tests to evaluate performance under curvature and rolling motions.
• Test conditions, cycle counts, and acceptance/observation criteria for electrical and optical degradation (e.g., failure modes, change thresholds).
• Requirements for test equipment, environmental chambers and reporting to ensure repeatability and comparability of results.

These key topics are summarized from the standard’s test-method focus and related descriptive material in the IEC record.

Typical use and users

Primary users are manufacturers of flexible/printed OLED devices, quality assurance and reliability laboratories, third‑party test houses, product developers in printed electronics R&D, and procurement/qualification teams who require standardized, repeatable test methods to assess mechanical and environmental robustness of flexible OLED elements prior to integration into products. Device designers use the tests to validate durability; test labs use them to produce comparable performance data.

Related standards

This part is one element of the IEC 62899 “Printed electronics” series. Closely related documents include IEC 62899-502-1 (mechanical stress testing of OLED elements on flexible substrates) and other IEC 62899 parts addressing printed-device tests and materials (for example displacement-current measurement for printed TFTs and contact-resistance methods in later parts). Implementers commonly use these companion parts together for a comprehensive quality-assessment program.

Keywords

Printed electronics; flexible OLED; OLED elements; quality assessment; mechanical stress tests; environmental stress tests; rolling test; vending test; printed OLED; TC 119.

FAQ

Q: What is this standard?

A: IEC 62899-502-2:2019 is an international test-method standard that specifies combined mechanical and environmental stress test methods for flexible organic light emitting diode (OLED) elements produced by printing techniques.

Q: What does it cover?

A: It covers test definitions and procedures for combined mechanical deformation (bending, rolling, vending-type cycling) and environmental exposures (temperature/humidity) applied to flexible printed OLED elements, with guidance on test conditions and observation/reporting criteria used for quality and reliability assessment.

Q: Who typically uses it?

A: Manufacturers, R&D teams, quality and reliability laboratories, third‑party test houses and procurement/qualification groups working with flexible printed OLED devices and modules.

Q: Is it current or superseded?

A: As published, IEC 62899-502-2:2019 is Edition 1.0 (published 24 July 2019). The IEC record lists a stability date indicating the document is intended to remain unchanged through 2027; users should check the IEC catalogue or their national standards body for any amendments or newer editions beyond that date.

Q: Is it part of a series?

A: Yes — it is part of the IEC 62899 “Printed electronics” series (multiple parts cover materials, test methods and device-specific procedures, e.g., IEC 62899-502-1 and subsequent parts addressing TFTs and other measurements). Users typically combine relevant parts of the series to create a full test and qualification program for printed electronic components.

Q: What are the key keywords?

A: Printed electronics, flexible OLED, OLED element testing, mechanical stress, environmental stress, rolling test, vending test, quality assessment.