IEC TR 62595-1-6:2025
(Main)Display lighting unit - Part 1-6: Quantum dot films and quantum dot diffuser plates used in backlight unit
Display lighting unit - Part 1-6: Quantum dot films and quantum dot diffuser plates used in backlight unit
IEC TR 62595-1-6:2025 is a technical report that provides general information for future standardization of quantum dot light converting unit (including quantum dot films and quantum dot diffuser plates) used in backlight units and provides examples of the effect of quantum dot light converting unit on the optical characteristics of backlight after environmental test.
General Information
Standards Content (Sample)
IEC TR 62595-1-6 ®
Edition 1.0 2025-09
TECHNICAL
REPORT
Display lighting unit -
Part 1-6: Quantum dot films and quantum dot diffuser plates used in backlight
unit
ICS 31.120; 31.260 ISBN 978-2-8327-0713-5
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or
by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either
IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC copyright
or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local
IEC member National Committee for further information.
IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - IEC Products & Services Portal - products.iec.ch
webstore.iec.ch/advsearchform Discover our powerful search engine and read freely all the
The advanced search enables to find IEC publications by a
publications previews, graphical symbols and the glossary.
variety of criteria (reference number, text, technical With a subscription you will always have access to up to date
committee, …). It also gives information on projects, content tailored to your needs.
replaced and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published containing more than 22 500 terminological entries in English
details all new publications released. Available online and and French, with equivalent terms in 25 additional languages.
once a month by email. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer
Service Centre: sales@iec.ch.
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviated terms . 5
3.1 Terms and definitions . 5
3.2 Abbreviated terms. 6
4 Quantum dots used in BLU technologies and applications . 6
4.1 General . 6
4.2 QD-LCF . 7
4.3 QD-DP . 7
4.4 Other applications. 8
5 Optical characteristics . 8
5.1 General . 8
5.2 Factors influencing colour gamut of the LCD module using QD-BLU. 9
5.3 Factors influencing luminance of the BLU using quantum dots . 10
5.4 Factors influencing uniformity of the BLU using quantum dots . 10
6 Mechanical and environmental characteristics . 10
6.1 General . 10
6.2 High temperature storage test . 12
6.3 High temperature and high humidity test . 13
6.4 Blue light operation test . 14
6.5 Release force . 17
7 Discussion and possible future standardization . 17
7.1 General . 17
7.2 Future standardization for QD-LCF . 17
7.3 Future standardization for QD-DP. 17
7.4 Others . 17
Annex A (informative) High flux blue light operating test . 18
Bibliography . 21
Figure 1 – Schematic of LCD with QD-LCF BLU. 7
Figure 2 – Schematic of LCD with QD-DP BLU . 8
Figure 3 – Spectrum differences for conventional and QD-based BLU and LCD . 9
Figure 4 – Chromaticity gamut of conventional LCD and QD-based LCD . 10
Figure 5 – Typical structure of QD-LCF . 11
Figure 6 – Typical structure of QD-DP . 11
Figure 7 – Example of change of chromaticity coordinates and luminance under high
temperature storage test . 12
Figure 8 – BLU structure used in test . 13
Figure 9 – Example of change of chromaticity coordinates and luminance under high
temperature and high humidity test . 14
Figure 10 – Example of change of colour coordinate and luminance after blue light
operating test at high temperature . 16
Figure 11 – Blue light operation test condition . 16
Figure A.1 –Schematic of an example of the high flux blue light aging equipment . 18
Figure A.2 –Example of change of chromaticity coordinates and luminance after high
flux blue aging test . 19
Figure A.3 – The curve of blue LED irradiance and failure time . 20
Table 1 – Example of BLU optical characteristics using quantum dots . 8
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Display lighting unit -
Part 1-6: Quantum dot films and quantum dot
diffuser plates used in 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 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)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC TR 62595-1-6 has been prepared by IEC technical committee 110: Electronic displays. It
is a Technical Report.
The text of this Technical Report is based on the following documents:
Draft Report on voting
110/1749/DTR 110/1796/RVDTR
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Technical Report is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 63211 series, published under the general title Display lighting unit,
can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
1 Scope
This part of IEC 62595, which is a technical report, provides general information for future
standardization of quantum dot light converting unit (including quantum dot films and quantum
dot diffuser plates) used in backlight units and provides examples of the effect of quantum dot
light converting unit on the optical characteristics of backlight after environmental test.
NOTE Quantum dots (QDs) have broad application beyond display lighting units (DLUs). This document focuses on
photoluminescent backlight units (BLUs).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 62595-1-2, Display lighting unit - Part 1-2: Terminology and letter symbols
IEC 62607-3-1, Nonmanufacturing - Key control characteristics - Part 3-1: Luminescent
nanomaterials - Quantum efficiency
ISO/TS 17466, Use of UV-Vis absorption spectroscopy in the characterization of cadmium
chalcogenide colloidal quantum dots
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of t
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.