Organic light emitting diode (OLED) panels for general lighting - Performance requirements

IEC 62922:2016 specifies the performance requirements of OLED tiles and panels for use on DC supplies up to 120 V or AC supplies up to 50 V at 50 Hz or 60 Hz for indoor and similar general lighting purposes.

Panneaux à diodes électroluminescentes organiques (OLED) destinés à l'éclairage général - Exigences de performance

L'IEC 62922:2016 spécifie les exigences de performance des dalles et des panneaux OLED destinés à être utilisés avec des alimentations en courant continu jusqu'à 120 V ou avec des alimentations en courant alternatif jusqu'à 50 V à 50 Hz ou 60 Hz, pour l'éclairage général intérieur ou similaire.

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Status
Published
Publication Date
17-Nov-2016
Current Stage
PPUB - Publication issued
Start Date
18-Nov-2016
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IEC 62922
Edition 1.0 2016-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Organic light emitting diode (OLED) panels for general lighting – Performance
requirements
Panneaux à diodes électroluminescentes organiques (OLED) destinés à
l’éclairage général – Exigences de performance
IEC 62922:2016-11(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62922
Edition 1.0 2016-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Organic light emitting diode (OLED) panels for general lighting – Performance
requirements
Panneaux à diodes électroluminescentes organiques (OLED) destinés à
l’éclairage général – Exigences de performance
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.99 ISBN 978-2-8322-3754-0

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 62922:2016 © IEC 2016
CONTENTS

FOREWORD ........................................................................................................................... 4

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

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

3 Terms and definitions ...................................................................................................... 6

4 General statement and test conditions ............................................................................. 7

4.1 General statement .................................................................................................. 7

4.2 General test conditions ........................................................................................... 7

4.3 Stabilization ............................................................................................................ 8

4.3.1 General requirements for stabilization.............................................................. 8

4.3.2 Current-driven stabilization .............................................................................. 8

4.3.3 Voltage-driven stabilization .............................................................................. 8

5 Marking ........................................................................................................................... 8

5.1 Contents and location ............................................................................................. 8

5.2 Information on reliability of electrical connection ..................................................... 9

6 Input power ..................................................................................................................... 9

7 Initial photometric characteristics ..................................................................................... 9

7.1 General ................................................................................................................... 9

7.2 Luminous flux ....................................................................................................... 10

7.3 Luminous efficacy ................................................................................................. 10

7.4 Chromaticity coordinates ....................................................................................... 10

7.5 Correlated colour temperature (CCT) .................................................................... 10

7.6 Colour rendering index (CRI) ................................................................................ 10

7.7 Luminance uniformity ............................................................................................ 11

7.7.1 Average luminance (L ) ............................................................................... 11

7.7.2 Luminance uniformity (U) ............................................................................... 11

7.8 Luminous intensity distribution .............................................................................. 11

7.9 Surface chromaticity uniformity ............................................................................. 12

7.10 Angular chromaticity uniformity ............................................................................. 12

8 Maintained photometric characteristics .......................................................................... 12

9 Reliability ...................................................................................................................... 13

9.1 High temperature – high humidity operation .......................................................... 13

9.2 High temperature – high humidity storage ............................................................. 13

9.3 Reliability of connection ........................................................................................ 13

10 Information for controlgear design ................................................................................. 14

Annex A (informative) Use of regional standards.................................................................. 15

Annex B (informative) Measuring method of angular chromaticity uniformity ........................ 16

Annex C (normative) Measuring method for luminous flux .................................................... 18

C.1 General ................................................................................................................. 18

C.2 Integrating sphere measurements ......................................................................... 18

C.2.1 Integrating sphere methods and installation position ...................................... 18

C.2.2 Size of the integrating sphere ........................................................................ 18

C.3 Goniophotometric measurements .......................................................................... 19

Annex D (informative) Tests of robustness of terminations and connectors .......................... 20

D.1 General ................................................................................................................. 20

D.2 Wire terminations and pin type connectors ............................................................ 20

---------------------- Page: 4 ----------------------
IEC 62922:2016 © IEC 2016 – 3 –

D.2.1 General ......................................................................................................... 20

D.2.2 Tensile test .................................................................................................... 20

D.2.3 Bending test .................................................................................................. 20

D.2.4 Torsion test ................................................................................................... 20

D.3 Flexible flat terminations ....................................................................................... 20

D.3.1 General ......................................................................................................... 20

D.3.2 Peel test A ..................................................................................................... 21

D.3.3 Peel test B ..................................................................................................... 21

D.4 Soldering .............................................................................................................. 21

Annex E (informative) Information for controlgear design .................................................... 22

E.1 General ................................................................................................................. 22

E.2 Operation .............................................................................................................. 22

E.3 Characteristics of the driver output current ............................................................ 22

E.4 Characteristics of the driver output voltage ........................................................... 23

E.5 Dimming ............................................................................................................... 23

E.6 Short-circuit protection .......................................................................................... 23

Annex F (informative) Information for luminaire design ........................................................ 24

Bibliography .......................................................................................................................... 25

Figure C.1 – 4π geometry (left), 2π geometry sphere (centre) and 2π geometry

hemisphere (right)................................................................................................................. 18

Figure D.1 – Schematic diagram of peel test A...................................................................... 21

Figure E.1 – Voltage and luminance behaviour at constant current operation ........................ 22

Table 1 – Contents and location of marking ............................................................................ 9

Table B.1 – Chromaticity coordinates for all viewing angles between 0° and 80° in 5°

steps..................................................................................................................................... 16

Table B.2 – Colour difference between all chromaticity coordinate pairs ............................... 17

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– 4 – IEC 62922:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ORGANIC LIGHT EMITTING DIODE (OLED) PANELS
FOR GENERAL LIGHTING – PERFORMANCE REQUIREMENTS
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

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

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

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

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

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

International Standard IEC 62922 has been prepared by subcommittee 34A: Lamps, of IEC

technical committee 34: Lamps and related equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
34A/1942/FDIS 34A/1956/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

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

In this standard, the following print types are used:
– requirements: roman type,
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IEC 62922:2016 © IEC 2016 – 5 –
– test specifications: italic type,
– notes: smaller roman type.

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

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

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct

understanding of its contents. Users should therefore print this document using a

colour printer.
---------------------- Page: 7 ----------------------
– 6 – IEC 62922:2016 © IEC 2016
ORGANIC LIGHT EMITTING DIODE (OLED) PANELS
FOR GENERAL LIGHTING – PERFORMANCE REQUIREMENTS
1 Scope

This document specifies the performance requirements of OLED tiles and panels for use on

DC supplies up to 120 V or AC supplies up to 50 V at 50 Hz or 60 Hz for indoor and similar

general lighting purposes.

NOTE In this current edition, life (life time and maintained values) is not addressed. This is intended to be

covered in a future amendment.
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 60050-845, International Electrotechnical Vocabulary. Lighting (available at
http://www.electropedia.org)

IEC 62868, Organic light emitting diode (OLED) panels for general lighting – Safety

requirements

IEC TR 62732, Three-digit code for designation of colour rendering and correlated colour

temperature

IEC TS 62972, General lighting – Organic light emitting diode (OLED) products and related

equipment – Terms and definitions

ISO 11664-5/CIE S 014-5/E:2009, Colorimetry – Part 5: CIE 1976 L*u*v* Colour space and u',

v' uniform chromaticity scale diagram

CIE 013.3:1995, Method of measuring and specifying colour rendering properties of light

sources
CIE TN 001:2014, Chromaticity difference specification for light source
3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60050-845,

IEC TS 62972 and IEC 62868 as well as the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
test voltage
input voltage at which tests are carried out
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IEC 62922:2016 © IEC 2016 – 7 –
3.2
test current
input current at which tests are carried out
3.3
test power
input power at which tests are carried out
3.4
initial value

photometric and electrical characteristics at the end of the ageing and stabilization time

3.5
average luminance
luminance averaged over the light output surface of an OLED panel in a direction
4 General statement and test conditions
4.1 General statement

The requirements of this document apply in addition to the requirements of IEC 62868.

The requirement applies for 95 % of the population (with a failure margin below 5 %, it is

considered that the product passed the test).

It is understood that reference to an OLED panel also includes reference to OLED tiles in the

requirements and tests of this document.
4.2 General test conditions

Unless otherwise specified, all measurements shall be made in a draught free room at a

temperature of 25 °C with a tolerance of ±5 °C, a relative humidity of 65 % maximum and

steady state operation of the OLED panel. The temperature shall be maintained within ±2 °C

during the test. The temperature shall be measured in the integrating sphere or at the point

within 1,5 m from the OLED panel.

The tests shall be conducted at the rated current or voltage unless otherwise specified in this

document.

The test shall be made with the OLED panel in the horizontal mounting position with the

surface emitting the largest fraction of luminous flux directed upwards, unless specified

otherwise by the manufacturer. The mounting position shall be recorded in the documentation.

If all surfaces are intended to emit the same luminous flux, the orientation is at the discretion

of the test laboratory. The operating position shall be maintained during the entire test.

In the case of constant current operation: The test current, unless otherwise specified, shall

be stable within ±0,5 % during the performance test of an OLED panel. The total harmonic

content of the input shall not exceed 3 %.

In the case of constant voltage operation: The test voltage, unless otherwise specified, shall

be stable within ±0,05 % or 5 mV whichever is greater during the performance test of an

OLED panel. The total harmonic content of the input shall not exceed 3 %. The tolerance of

±0,05 % is applicable for DC supplies only. The tolerance for AC supplies is under

consideration. The test voltage shall be measured at the terminals of the OLED panel.

---------------------- Page: 9 ----------------------
– 8 – IEC 62922:2016 © IEC 2016
The OLED panel shall be mounted in such a way that thermal contact between the

measurement equipment, sample holder and OLED panel is minimal. During stabilization and

measurement, an OLED panel shall only be in contact with the measurement equipment near

its edges and contact ledges. All other parts of the panel, especially the light output surface

and the opposing surface (the back of the OLED panel) shall be open to air, unless otherwise

specified by the manufacturer.

NOTE The harmonic content is understood as the r. m. s. summation of the individual harmonic components using

the fundamental as 100 %.
4.3 Stabilization
4.3.1 General requirements for stabilization

Stabilization is conducted in a draught free room at a temperature of 25 °C ± 5 °C. The

temperature shall be maintained within ±2 °C during stabilization. The temperature shall be

measured in the integrating sphere or the point within 1,5 m from the OLED panel.

If stabilization conditions, according to 4.3.2 or 4.3.3, are not achieved within 60 min, the

measurement may be started and the observed fluctuations shall be reported.
4.3.2 Current-driven stabilization

This method of stabilization is used for OLED panels intended to be operated primarily in

constant current mode and OLED panels for which the selection of the operating mode is left

to the customer.

The OLED panel shall be powered with a constant input current stable within ±0,5 %.

During the stabilization period, measurements of the voltage are made at least at 1 min

intervals. The OLED panel under test may be regarded as stable and suitable for test

purposes if the difference of maximum and minimum readout voltage observed over the last

5 min is less than 0,5 %.
4.3.3 Voltage-driven stabilization

This method of stabilization is used for OLED panels intended to be operated primarily in

constant voltage mode.

The OLED panel shall be powered with a constant input voltage stable within ±0,05 %.

During the stabilization period, measurements of the current are made at least at 1 min

intervals. The OLED panel under test may be regarded as stable and suitable for test

purposes if the difference of maximum and minimum readout current observed over the last

5 min is less than 1 %.
5 Marking
5.1 Contents and location
OLED panels shall be marked according to Table 1.
---------------------- Page: 10 ----------------------
IEC 62922:2016 © IEC 2016 – 9 –
Table 1 – Contents and location of marking
Parameters Location
Rated luminous flux (lm) Mandatory on packaging or product information
Average luminance (cd/m ) Mandatory on packaging or product information

Photometric code (according to IEC TR 62732) Mandatory on packaging or product information

Rated chromaticity coordinates (in u’v’ coordinates) and Mandatory on packaging or product information

chromaticity coordinate range (expressed by Δu’v’, a u’v’ circle
or a u’v’ quadrangle)
Correlated colour temperature (K) Mandatory on packaging or product information
Rated colour rendering index Mandatory on packaging or product information
Operating temperature range (°C) Mandatory on packaging or product information
Rated luminous efficacy (lm/W) Mandatory on packaging or product information
Luminance uniformity (%) Mandatory on packaging or product information
Luminous intensity distribution Mandatory on packaging or product information

Surface chromaticity uniformity and location of measurement Mandatory on packaging or product information

spots (if applicable)
Angular chromaticity uniformity Mandatory on packaging or product information

Rated location and dimensions of the light output surface Mandatory on packaging or product information

NOTE The operating temperature range specifies maximum and minimum temperatures of the OLED panel at

which the OLED panel will function as intended. The operating temperatures are measured according to Annex F.

This requirement is fulfilled if the data file is made available electronically.

5.2 Information on reliability of electrical connection

Information shall be provided in the datasheet on how the electrical connection of an OLED

panel is made, unless the connection method is obvious. This information shall include, as

applicable, information on:

– requirements for connectors (e.g. wire size, material, connector specification);

– method for attaching connectors (e.g. solder time and temperature);

– reliability of connection (e.g. maximum pull force and appropriate test setup);

– additional safeguards required (e.g. external strain relief).
6 Input power

The general test conditions and stabilization according to 4.2 and 4.3 shall apply. The input

power of the OLED panel is measured.
The measured input power shall not exceed the rated power by more than 10 %.
7 Initial photometric characteristics
7.1 General

The initial values of photometric characteristics shall be measured after stabilization of the

OLED panel.
...

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