Measuring methods of blue-light characteristics and related optical performances for visual display terminal (TA 2)

Messverfahren von Eigenschaften des blauen Lichts und ähnlichen optischen Leistungen für visuelle Anzeige Einheiten

Merilne metode značilnosti modre svetlobe in s tem povezanih optičnih zmogljivosti za slikovno zaslonsko opremo (TA 2)

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Current Stage
4020 - Enquiry circulated
Due Date
03-Dec-2021
Completion Date
03-Dec-2021

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SLOVENSKI STANDARD
oSIST prEN IEC 63207:2022
01-februar-2022
Merilne metode značilnosti modre svetlobe in s tem povezanih optičnih
zmogljivosti za slikovno zaslonsko opremo (TA 2)

Measuring methods of blue-light characteristics and related optical performances for

visual display terminal (TA 2)
Ta slovenski standard je istoveten z: prEN IEC 63207:2021
ICS:
17.180.20 Barve in merjenje svetlobe Colours and measurement of
light
31.120 Elektronske prikazovalne Electronic display devices
naprave
oSIST prEN IEC 63207:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 63207:2022
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oSIST prEN IEC 63207:2022
100/3685/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 63207 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2021-12-03 2022-02-25
SUPERSEDES DOCUMENTS:
100/3556/CD, 100/3666/CC
IEC TA 2 : COLOUR MEASUREMENT AND MANAGEMENT
SECRETARIAT: SECRETARY:
United States of America Mr Michael Dolan
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 110
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY

SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING

Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.

Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of

which they are aware and to provide supporting documentation.
TITLE:

Measuring methods of blue-light characteristics and related optical performances for visual

display terminal (TA 2)
PROPOSED STABILITY DATE: 2024
NOTE FROM TC/SC OFFICERS:

Copyright © 2021 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this

electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.

You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without

permission in writing from IEC.
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oSIST prEN IEC 63207:2022
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1 CONTENTS

3 FOREWORD ........................................................................................................................... 3

4 INTRODUCTION ..................................................................................................................... 5

5 1 Scope ............................................................................................................................... 6

6 2 Normative references ....................................................................................................... 6

7 3 Terms, definitions, symbols and units ............................................................................... 6

8 3.1 Terms and definitions .............................................................................................. 6

9 3.2 Abbreviations .......................................................................................................... 8

10 4 Measuring conditions ........................................................................................................ 8

11 4.1 Standard environmental conditions ........................... .............................................8

12 4.2 Power supply ........................................................................................................... 8

13 4.3 Stabilized condition of VDT ..................................................................................... 8

14 4.4 Standard working states ........................................... ..............................................8.

15 4.5 Light measurement device ....................................................................................... 9

16 4.6 Test settings ........................................................................................................... 9

17 5 Measuring methods of optical performances ................................................................... 10

18 5.1 Luminance ............................................................................................................ 10

19 6 Measuring methods of blue light performances ............................................................... 11

20 6.1 Blue light radiance................................................................................................. 11

21 6.2 Narrow band blue light spectrum ratio ................................................................... 11

22 7 Test report...................................................................................................................... 12

23 Bibliography .......................................................................................................................... 13

25 Figure 1 – Layout diagram of measurement setup with terminology ...................................... 10

26 Figure 2 – Location of test point for luminance ...................................................................... 10

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oSIST prEN IEC 63207:2022
IEC 63207 CDV © IEC 2021 – 3 –
28 INTERNATIONAL ELECTROTECHNICAL COMMISSION
29 ____________
30 Measuring methods of blue light characteristics and related optical
31 performance for visual display terminal
32 FOREWORD

33 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

34 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international

35 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and

36 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,

37 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their

38 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with

39 may participate in this preparatory work. International, governmental and non-governmental organizations liaising

40 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for

41 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.

42 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

43 consensus of opinion on the relevant subjects since each technical committee has representation from all

44 interested IEC National Committees.

45 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

46 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

47 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

48 misinterpretation by any end user.

49 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

50 transparently to the maximum extent possible in their national and regional publications. Any divergence between

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52 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

53 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

54 services carried out by independent certification bodies.

55 6) All users shall ensure that they have the latest edition of this publication.

56 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

57 members of its technical committees and IEC National Committees for any personal injury, property damage or

58 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

59 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.

60 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

61 indispensable for the correct application of this publication.

62 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent

63 rights. IEC shall not be held responsible for identifying any or all such patent rights.

64 International Standard IEC XXXXX has been prepared by IEC technical committee 100: Audio,

65 video and multimedia systems and equipment
66 The text of this standard is based on the following documents:
XXX Report on voting
100/XXX/XXX 100/XXX/XXX

68 Full information on the voting for the approval on this standard can be found in the report on

69 voting indicated in the above table.

70 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

72 The committee has decided that the contents of this publication will remain unchanged until the

73 stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to

74 the specific publication. At this date, the publication will be
75 • reconfirmed,
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oSIST prEN IEC 63207:2022
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76 • withdrawn,
77 • replaced by a revised edition, or
78 • amended.

80 The National Committees are requested to note that for this publication the stability date

is 2018.

82 THIS TEXT IS INCLUDED FOR THE INFORMATION OF THE NATIONAL COMMITTEES AND WILL BE DELETED

83 AT THE PUBLICATION STAGE.
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IEC 63207 CDV © IEC 2021 – 5 –
86 INTRODUCTION

88 In nowadays, visual display terminals (VDTs) are everywhere in daily life, such as TVs, monitors,

89 tablets, mobile phones, etc. Almost people will watch VDTs for a long time per day for varies

90 reasons. However, there are three undesirable effects that will be caused by the blue light from

91 VDTs.

92 The first one is a possibility of injury to human retina [1]. The energy of blue light emitting from

93 VDTs is weak. However, the effects of long-termexposure (30 years or more) to weak energy

94 from blue light of VDTs are unknown.

95 The 2nd one is an effect of disturbance of biological clock (circadian) [2,3]. The blue light

96 emitting from VDTs at nighttime can also cause the disturbance of biological clock.

97 The 3rd one is an effect of eye strain [4,5].

98 To reduce these three issues, the demand of blue light reduced VDTs by market is dramatically

99 increasing. In consequence, the industry of VDTs is enthusiastic in promoting blue light reduced

100 VDTs, including well-known companies. On the other hand, the reduction of blue light will

101 certainly have drawbacks on visual experience.

102 To address the defects above under the scope of IEC TC100, this project contributes to develop

103 a set of novel measurement methods for VDTs that the methods integrate both the

104 considerations of luminance independent indicators of blue light characteristics (BLCs).

105 NOTICE: this project will only provide objective measurement methods for measuring BLCs of

106 VDTs, the action of defining threshold values or assessment methods are out of the scope of

107 this project. If necessary, manufactures can define their own threshold values and/or

108 assessment methods according to this project.
109
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110 Measuring methods of blue light characteristics and related optical
111 performance for visual display terminal
112
113 1 Scope

114 This document specifies measuring methods for optical performance (luminance) and blue light

115 characteristics (BLCs) of visual display terminals (VDTs),excluding displays only for outdoor

116 use.
117 2 Normative references

118 The following documents are referred to in the text in such a way that some or all of their content

119 constitutes requirements of this document. For dated references, only the edition cited applies.

120 For undated references, the latest edition of the referenced document (including any

121 amendments) applies.

122 ISO/CIE 19476:2014 Characterization of the performance of illuminance meters and luminance

123 meters
124 ISO 23539/CIE S010 Photometry – The CIE system of physical photometry

125 IEC 61747-30-1:2012 Liquid crystal display devices – Part 30-1: Measuring methods for liquid

126 crystal display modules – Transmissive type
127 IEC 61966-4:2000 Multimedia systems and equipment-Col
...

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