BS IEC 61747-40-2:2015
$142.49
Liquid crystal display devices – Mechanical testing of display cover glass for mobile devices. Uniaxial flexural strength (4-point bend)
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 24 |
IEC 61747-40-2:2015(E) is a mechanical performance testing procedure for cover glass used in electronic flat panel displays in mobile devices. This standard is focused on the measurement of as-received edge strength via uni-axial flexure generated by a four-point bend.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | CONTENTS |
| 5 | FOREWORD |
| 7 | INTRODUCTION |
| 8 | 1 Scope 2 Normative references 3 Terms, definitions and abbreviations 3.1 Terms and definitions |
| 9 | 3.2 Abbreviations 4 General 5 Apparatus 5.1 Testing environment and pre-conditioning 5.2 Testing frame |
| 11 | 5.3 Test fixture and setup Figures Figure 1 – Testing frame |
| 12 | Figure 2 – Support assembly (side view) Figure 3 – Support assembly (top view) |
| 13 | Figure 4 – Load assembly (side view) Figure 5 – Load assembly (bottom view) |
| 14 | 5.4 Test fixture dimensions |
| 15 | 5.5 Loading rate 6 Procedure 6.1 Safety 6.1.1 Hazard – Broken glass 6.1.2 Crush hazard – Only one person may operate the testing frame 6.1.3 Crush hazard – Take care when installing or removing a specimen Figure 6 – Example load traces for appropriate and inappropriate span settings |
| 16 | 6.1.4 Hazard – Press the emergency stop button when an unsafe condition is observed 6.1.5 Flying debris hazard – Ensure that specimens are installed correctly 6.1.6 Hazard – Protect control cables from damage or disconnection 6.2 Sample 6.3 Individual specimen |
| 17 | Figure 7 – Edge fracture originating from between the load bars |
| 18 | 6.4 Complete the report Figure 8 – Edge fracture originating from underneath the load bar Figure 9 – Surface fracture originating from between the load bars |
| 19 | 7 Calculations 7.1 Strength calculations 7.2 Statistical calculations |
| 20 | 8 Reporting 8.1 Information to be reported for each test Figure 10 – Example Weibull plot |
| 21 | 8.2 Information to be made available upon request 9 Specifications |
