1、 IEC 62595-2-1 Edition 1.0 2016-04 INTERNATIONAL STANDARD Display lighting unit Part 2-1:Electro-optical measuring methods of LED back light unit IEC 62595-2-1:2016-04(en)colourinside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC,Geneva,Switzerland All rights reserved.Unless otherwise s
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10、 feedback on this publication or need further assistance,please contact the Customer Ser vice Centr e:csciec.ch.IEC 62595-2-1 Edition 1.0 2016-04 INTERNATIONAL STANDARD Display lighting unit Part 2-1:Electro-optical measuring methods of LED back light unit INTERNATIONAL ELECTROTECHNICAL COMMISSION I
11、CS 31.120;31.260 ISBN 978-2-8322-3299-6 Registered trademark of the International Electrotechnical Commission Warning!Make sure that y ou obtained this publication from an authorized distributor.colourinside 2 IEC 62595-2-1:2016 IEC 2016 CONTENTS FOREWORD.3 1 Scope.5 2 Normative references.5 3 Terms
12、,definitions and abbreviations.5 3.1 Terms and definitions.5 3.2 Abbreviations.5 4 General measurement conditions.5 4.1 Standard atmospheric conditions for LED BLU.5 4.2 Measuring setup.6 4.3 Warm-up time.6 5 Measurement methods.7 5.1 Electrical measurement methods.7 5.1.1 Conditions.7 5.1.2 Current
13、.7 5.1.3 Voltage.7 5.1.4 Power consumption.7 5.2 Optical measurement methods.7 5.2.1 Conditions.7 5.2.2 Luminance.8 5.2.3 Luminance uniformity or non-uniformity.9 5.2.4 Spectral power distribution.10 5.2.5 Chromaticity.10 5.2.6 Colour uniformity.10 5.2.7 Angular luminance uniformity.11 5.2.8 Angular
14、 colour uniformity.11 5.2.9 Measurement methods of block-wise BLUs.11 Bibliography.16 Figure 1 Example of measuring setup for LED BLU.6 Figure 2 Example of warm-up characteristic of BLU.7 Figure 3 Definition of zenith angle and azimuth angle .8 Figure 4 Examples of measurement point layout.10 Figure
15、 5 Angular luminance uniformity measurement.11 Figure 6 Example of checkerboard pattern (8 segments 10 segments)for block-wise BLU.12 Figure 7 Example of single block white pattern.12 Figure 8 Example of single block black pattern.13 Figure 9 Example of incoherent point spread function.13 IEC 62595-
16、2-1:2016 IEC 2016 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DISPLAY LIGHTING UNIT Part 2-1:Electro-optical measuring methods of LED backlight unit FOREWORD 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 a
