IEC 62715-1-1:2013

Overview

IEC 62715-1-1:2013 sets out the preferred terminology, definitions, and letter symbols specific to flexible display devices. Published by the International Electrotechnical Commission (IEC), this international standard promotes consistent usage of terms and symbols across different countries and industries. By establishing a unified vocabulary, IEC 62715-1-1 ensures effective communication and supports global harmonization in the development and implementation of flexible display technologies.

Flexible display devices, including panels and modules that can be bent, rolled, or conformed to curved surfaces, are rapidly advancing in consumer electronics, automotive, and industrial applications. The terminology defined in IEC 62715-1-1 covers aspects ranging from physical properties and constructive elements to performance characteristics and manufacturing processes.

Key Topics

IEC 62715-1-1:2013 encompasses the following main areas:

• General Terms: Fundamental definitions relating to flexibility, flexible display devices, modules, panels, and flexible displays as end-user products.
• Physical Properties: Key characteristics such as flexibility, malleability, flexural strength, flexural modulus, and cyclic stress, all relevant to the mechanical behavior of flexible displays.
• Constructive Elements: Essential components of flexible display devices, including gas barrier layers, flexible substrates (such as plastic films or thin glass), buffer layers, and insulation layers.
• Performance and Specifications: Critical parameters including bending radius, critical bending radius, strain, and performance tests like the calcium (Ca) test for gas permeation.
• Production Processes: Process definitions for carrier handling, carrier lamination and delamination, roll-to-roll manufacturing, and direct writing lithography techniques.
• Letter Symbols: Standardized symbols used for quantities and units describing physical properties (e.g., strain, stress) and performance (e.g., bending radius).

By clearly classifying and defining these aspects, the standard provides a solid foundation for technical documents, research papers, technical communication, and future IEC standards on flexible displays.

Applications

The adoption of IEC 62715-1-1:2013 offers significant practical value for a wide range of stakeholders in the flexible display ecosystem:

• Manufacturers and Developers: Ensures accurate specification and communication of display characteristics during design and production.
• International Collaboration: Facilitates efficient cooperation and mutual understanding between organizations and countries involved in flexible display research and manufacturing.
• Product Testing and Quality Control: Provides standardized definitions for specifying test conditions and interpreting results related to bending, stress, and environmental durability.
• Technical Documentation: Supports the preparation of clear, consistent datasheets, user manuals, and research publications.
• Industry Standards Compliance: Assists in regulatory, procurement, and quality assurance processes by enforcing common terminology in contracts and reports.

Related Standards

IEC 62715-1-1:2013 builds on and references several related international standards that contribute to a coherent language for electronic devices and display technology:

• IEC 60027 (all parts): Letter symbols to be used in electrical technology
• IEC 60050-845: International Electrotechnical Vocabulary – Part 845: Lighting
• ISO 80000-1: Quantities and units – Part 1: General
• ISO 9241-302:2008: Ergonomics of human-system interaction – Part 302: Terminology for electronic visual displays

Standard users are encouraged to consult these documents for comprehensive coverage of terminology, symbols, and measurement units in the broader electrotechnical and display domains.

Keywords: IEC 62715-1-1, flexible display devices, flexible displays terminology, letter symbols flexible displays, international standard flexible electronics, display device manufacturing, gas barrier layer, bending radius, roll-to-roll process, standardization in electronics