IEC 63211-3-5:2020

Overview

IEC 63211-3-5:2020 - "Durability test methods for electronic displays - Part 3-5: Mechanical tests - Surface durability" defines standardized mechanical surface durability test methods for electronic displays. It describes common procedures, test equipment, specimen preparation and evaluation when tests are applied at all product levels: parts (outer surfaces, display panels, modules) and final products (finished displays or devices). The document is intended as a reference for consistent durability assessment across display technologies.

Key topics and technical requirements

• Scope and purpose

  • Common procedures for surface durability mechanical tests applicable to electronic displays.
  • Intended to be a reference for future standards and revisions.

• Standard measuring conditions

  • Temperature: 25 °C ± 3 °C
  • Relative humidity: 50% ± 10%
  • Atmospheric pressure: 86 kPa to 106 kPa
  • Any deviations must be reported.

• Safety

  • Tests and specimen guards in accordance with IEC 62368-1; appropriate personal protective equipment required.

• Mechanical test methods covered

  • Ball drop test - evaluates resistance to point-impact shocks. Test apparatus requirements include a height adjustment column (drop height at least 180 cm), release mechanism, rigid base and specimen holder, and specified ball properties (steel alloy hardness C60–C67, diameter tolerance ±0.05 mm, sphericity deviation ≤ 0.025 mm, mass tolerance ±2.0%).
  • Tapping test - apparatus, specimen preparation and failure criteria defined for repeated localized impacts.
  • Scratch tests - includes stylus scratch and pencil hardness methods for evaluating scratch resistance and defining failure criteria.
  • Abrasion tests - linear abrader and other abrading methods, specimen mounting, procedure, evaluation and failure criteria.

• Specimen preparation and reporting

  • Requirements for sample size, mounting, marking pre-existing damage and documenting test point locations and environmental conditions.

Practical applications

• Quality assurance and incoming inspection of display components and finished devices.
• Product design validation and material selection for coatings, cover glasses and outer bezels.
• Comparative benchmarking between display variants and suppliers.
• Compliance testing labs implementing repeatable surface durability, scratch resistance, impact and abrasion protocols for consumer electronics, automotive displays, industrial HMI and mobile devices.

Who should use this standard

• Display manufacturers, module and panel suppliers
• Test laboratories and QA teams
• Product design and reliability engineers
• Certification bodies and standards writers referencing harmonized mechanical durability tests

Related standards

Relevant references cited in IEC 63211-3-5 include:

• IEC 62341-6-3 (OLED image measurement)
• IEC 62368-1 (Safety requirements)
• IEC 62715-5-3 (Flexible display visual assessment)
• IEC 62977-2-2 (Optical characteristics)
• ISO 15184 (Pencil hardness)
• ISO 19252 (Scratch properties)

Keywords: IEC 63211-3-5, surface durability, electronic displays, mechanical tests, ball drop, scratch test, abrasion test, tapping test, durability test methods.