1、 IEC 61747-40-3 Edition 1.0 2015-01 INTERNATIONAL STANDARD Liquid crystal display devices Part 40-3:Mechanical testing of display cover glass for mobile devices Biaxial flexural energy to failure(ball drop)IEC 61747-40-3:2015-01(en)THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2015 IEC,Geneva,Sw
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11、e devices Biaxial flexural energy to failure(ball drop)INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 31.120 ISBN 978-2-8322-2211-9 Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.2 IEC 61747-40-
12、3:2015 IEC 2015 CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.6 4 General.6 5 Apparatus.7 5.1 Testing environment and pre-conditioning.7 5.2 Apparatus overview.7 5.3 Height adjustment beam.8 5.4 Specimen holder.8 5.5 Armature.9 5.6 Ball release mechani
13、sm.10 5.7 Height adjustment clamp.10 5.8 Ball release controller.10 5.9 Ball.10 5.10 Base.10 6 Procedure.10 6.1 Safety.10 6.1.1 Hazard Broken glass.10 6.1.2 Hazard Compression due to moving ball.10 6.2 Sample.10 6.3 Individual specimen.11 6.4 Complete the report.11 7 Calculations.12 7.1 Breaking ene
14、rgy.12 7.2 Statistical calculations.12 8 Reporting.13 8.1 Information to be reported for each test.13 8.2 Information to be made available upon request.13 9 Specifications.14 Figure 1 Apparatus overview.8 Figure 2 Specimen holder(top view).9 Figure 3 Specimen holder(side view,cross-section).9 Figure
15、 4 Example Weibull plot.13 IEC 61747-40-3:2015 IEC 2015 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ LIQUID CRYSTAL DISPLAY DEVICES Part 40-3:Mechanical testing of display cover glass for mobile devices Biaxial flexural energy to failure(ball drop)FOREWORD 1)The International Electrotechnical Commi
16、ssion(IEC)is a worldwide organization for standardization comprising all national electrotechnical committees(IEC National Committees).The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields.To this end and in addition to other activities,IEC publishes International Standards,Technical Specifications,Technical Reports,Publicly Available Specifications(PAS)and Guides(hereafter referred to as“IEC Publication(s)”
