1、 IEC 61747-40-5 Edition 1.0 2018-02 INTERNATIONAL STANDARD 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 IEC 61747-40-5:2018-02(en)colourinside THIS PUBLICATI
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11、ay cover glass for mobile devices Strength against dynamic impact by a sharp object with the specimen rigidly supported INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 31.120 ISBN 978-2-8322-5402-8 Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtaine
12、d this publication from an authorized distributor.colourinside 2 IEC 61747-40-5:2018 IEC 2018 CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.6 4 General.7 5 Apparatus.8 5.1 Testing environment and pre-conditioning.8 5.2 Apparatus overview.8 5.3 Height a
13、djustment beam.8 5.4 Base(granite).9 5.5 Coated abrasives.9 5.6 Armature.9 5.7 Ball release mechanism.9 5.8 Height adjustment clamp.9 5.9 Ball release controller.9 5.10 Ball.9 5.11 Base.9 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 Sam
14、ple.10 6.3 Individual specimen.10 6.4 Complete the report.11 7 Calculations.11 7.1 Breaking energy.11 7.2 Statistical calculations.11 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.13 Figure 1 Apparatus overview.8
15、Figure 2 Typical Weibull plot.12 IEC 61747-40-5:2018 IEC 2018 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ 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 FORE
16、WORD 1)The International Electrotechnical Commission(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 Guid