IEC 61747-40-5:2018
Liquid crystal display devices - Part 40-5: Mechanical testing of display cover glass for mobile devices - Strength against dynamic impact by a sharp object with the specimen rigidly supported
- Standard No.
- IEC 61747-40-5:2018
- Release Date
- 2018
- Published By
- International Electrotechnical Commission (IEC)
- Latest
- IEC 61747-40-5:2018
- Replace
- IEC 110/936/FDIS:2017
- Scope
- This part of IEC 61747 is a mechanical performance testing procedure for cover glass used in electronic displays in mobile devices. This document focuses on the measurement of surface impact energy required to fracture a specimen due to the collision of sharp particles onto the surface of a cover glass. This is achieved by dropping a ball on a sheet of coated abrasives placed on the cover glass, which is rigidly supported. The failure mode is associated with damage introduction via sharp contact. Crack propagation is enhanced by central tension in the case of strengthened glass. This failure mode represents one of several field failure modes observed in mobile devices.
IEC 61747-40-5:2018 Referenced Document
- IEC 61649:2008 Weibull analysis
- IEC 61747-40-1:2013 Liquid crystal display devices - Part 40-1: Mechanical testing of display cover glass for mobile devices - Guidelines
- ISO 6344-1:1998 Coated abrasives - Grain size analysis - Part 1: Grain size distribution test
- ISO 8512-2:1990 Surface plates; part 2: granite
- JIS R 6111:2005 Artificial abrasives
IEC 61747-40-5:2018 history
- 2018 IEC 61747-40-5:2018 Liquid crystal display devices - Part 40-5: Mechanical testing of display cover glass for mobile devices - Strength against dynamic impact by a sharp object with the specimen rigidly supported
