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

IEC 62868:2014 specifies the safety requirements of OLED tiles and panels for use on d.c. supplies up to 120 V or a.c. supplies up to 50 V at 50 Hz or 60 Hz for indoor and similar general lighting purpose.

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

L'IEC 62868:2014 spécifie les exigences de sécurité de dalles et de panneaux OLED destinés à être utilisés avec des alimentations en tension continue jusqu'à 120 V ou avec des alimentations en tension alternative jusqu'à 50 V à 50 Hz ou 60 Hz, destinés à l'éclairage général intérieur ou similaire.

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Published
Publication Date
24-Sep-2014
Current Stage
DELPUB - Deleted Publication
Completion Date
14-May-2020
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IEC 62868
Edition 1.0 2014-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Organic light emitting diode (OLED) panels for general lighting – Safety
requirements
Panneaux à diodes électroluminescentes organiques (OLED) destinés à l’éclairage
général – Exigences de sécurité
IEC 62868:2014-09(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62868
Edition 1.0 2014-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Organic light emitting diode (OLED) panels for general lighting – Safety
requirements
Panneaux à diodes électroluminescentes organiques (OLED) destinés à l’éclairage
général – Exigences de sécurité
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX Q
ICS 29.140.99 ISBN 978-2-8322-1871-6

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 62868:2014 © IEC 2014
CONTENTS

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

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

2 Normative references ...................................................................................................... 5

3 Terms and definitions ...................................................................................................... 5

4 General ........................................................................................................................... 6

4.1 General requirements ............................................................................................. 6

4.2 General test requirements ....................................................................................... 7

5 Marking ........................................................................................................................... 7

5.1 Contents and location ............................................................................................. 7

5.2 Durability and legibility of marking ........................................................................... 7

6 Construction .................................................................................................................... 8

6.1 General ................................................................................................................... 8

6.2 Mechanical strength ................................................................................................ 8

6.3 Internal short circuit ................................................................................................ 8

6.4 Wireways ................................................................................................................ 9

6.5 Resistance to dust, solid objects and moisture ........................................................ 9

7 Mechanical hazard .......................................................................................................... 9

8 Fault conditions ............................................................................................................... 9

9 Insulation resistance and electric strength ..................................................................... 10

9.1 Insulation resistance ............................................................................................. 10

9.2 Electric strength .................................................................................................... 10

10 Thermal stress ............................................................................................................... 10

11 Creepage distances and clearances .............................................................................. 10

12 Resistance to heat and fire ............................................................................................ 10

12.1 Resistance to heat ................................................................................................ 10

12.2 Resistance to fire .................................................................................................. 10

13 Photobiological safety .................................................................................................... 11

14 Terminals ...................................................................................................................... 11

15 Information for luminaire design ..................................................................................... 11

Annex A (informative) Construction of OLED panels ........................................................... 12

Annex B (informative) Information for luminaire design ....................................................... 14

Annex C (normative) Method of provoking internal short circuit ........................................... 15

C.1 Method for an OLED panel with glass substrates .................................................. 15

C.2 Method for an OLED panel with flexible plastic substrates .................................... 15

C.3 Other methods ...................................................................................................... 15

Annex D (informative) Overview of the OLED lighting system consisting of OLED

panel or module .................................................................................................................... 16

Figure A.1 – Schematic diagram of OLED tile for lighting ...................................................... 12

Figure A.2 – Schematic diagram of OLED panel (Example 1) for lighting .............................. 12

Figure A.3 – Schematic diagram of OLED panel (Example 2) for lighting .............................. 13

Figure A.4 – Schematic diagram of OLED panel (Example 3) for lighting .............................. 13

Figure D.1 – Schematic diagram of OLED lighting system consisting of OLED panel

or module ............................................................................................................................. 16

Table 1 – Contents and location of marking ............................................................................ 7

---------------------- Page: 4 ----------------------
IEC 62868:2014 © IEC 2014 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ORGANIC LIGHT EMITTING DIODE (OLED) PANELS
FOR GENERAL LIGHTING – SAFETY 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

interested IEC National Committees.

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

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

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between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

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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

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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) 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 62868 has been prepared by subcommittee SC 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/1786FDIS 34A/1806/RVD

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

voting indicated in the above table.

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

---------------------- Page: 5 ----------------------
– 4 – IEC 62868:2014 © IEC 2014
In this standard, the following print types are used:
– requirements: roman type,
– test specifications: italic type,
– notes: smaller roman type.

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

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

related to the specific publication. At this date, the publication 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: 6 ----------------------
IEC 62868:2014 © IEC 2014 – 5 –
ORGANIC LIGHT EMITTING DIODE (OLED) PANELS
FOR GENERAL LIGHTING – SAFETY REQUIREMENTS
1 Scope

This International Standard specifies the safety requirements of OLED tiles and panels for use

on d.c. supplies up to 120 V or a.c. supplies up to 50 V at 50 Hz or 60 Hz for indoor and

similar general lighting purpose.

NOTE 1 At this moment only test methods for d.c. operated OLED panels are provided. Provisions for a.c.

operated OLED panels are under consideration.
NOTE 2 The construction of OLED tiles and panels is illustrated in Annex A.

NOTE 3 The OLED lighting system consisting of OLED panels or modules is illustrated in Annex D.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and

are indispensable for its application. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60598-1, Luminaires – Part 1: General requirements and tests
IEC 60050 (all parts): International electrotechnical vocabulary (available at
)

IEC 60068-2-6:2007, Environmental testing – Part 2-6: Tests – Test Fc: Vibration (sinusoidal)

IEC TR 62854:2014, Sharp edge testing apparatus and test procedure for lighting
equipment – Tests for sharpness of edge

ISO 4046-4:2002, Paper, board, pulps and related terms – Vocabulary – Part 4: Paper and

board grades and converted products
3 Terms and definitions

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

following apply.
3.1
organic light emitting diode
OLED

light emitting semiconductor consisting of an electroluminescent zone made of organic

compounds, situated between two electrodes
Note 1 to entry: This note applies to the French language only.
3.2
OLED tile

smallest functional OLED light source which cannot be separated into smaller OLED lighting

elements containing at least one contact ledge with at least one positive and one negative

pole for connection to the electrical power supply
---------------------- Page: 7 ----------------------
– 6 – IEC 62868:2014 © IEC 2014
3.3
OLED panel

independently operable unit OLED product containing an OLED tile and means of connection

to electrical supply such as a connector, PCB (printed circuit board), passive electronic

components and optionally a frame
3.4
OLED module
assembly of one or more OLED panels and active electronic components
3.5
rated value

quantity value for a characteristic of a product for specific operating conditions with the values

and the conditions specified in the relevant standard, or assigned by the manufacturer or

responsible vendor
3.6
type test

test or series of tests made on a type test sample for the purpose of checking compliance of

the design of a given product with the requirements of the relevant standard
3.7
stabilization

keeping an OLED panel switched on under specified electrical input to obtain stable

conditions

Note 1 to entry: The mentioned conditions can be photometric or electrical as specified in the relevant test clause.

3.8
stabilization time

time, which the OLED panel requires to obtain stable conditions with specified electrical input

Note 1 to entry: The mentioned conditions can be photometric or electrical as specified in the relevant test clause.

3.9
dark spot

small area remarkably darker than surrounding light output area on the OLED panel

Note 1 to entry: A dark spot can be due to lower current density or an open circuit in that area.

3.10
internal short circuit

unintentional conductive path between OLED anode and OLED cathode localized on a small

area

Note 1 to entry: An internal short circuit can look like a dark spot. It can lead to a significant heat generation in

that area.
4 General
4.1 General requirements

An OLED panel shall be designed and manufactured in such a way as to operate safely during

normal operation and not to cause any danger to persons and the environment.
In case of a failure of an OLED panel it shall fail safely.

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

requirements and tests of this standard.
---------------------- Page: 8 ----------------------
IEC 62868:2014 © IEC 2014 – 7 –
4.2 General test requirements

The tests, unless otherwise specified, are carried out at an ambient temperature of

25 °C ± 5 °C.

The tests shall be conducted at the rated current with a tolerance of 1 % unless otherwise

specified in this standard.

The OLED panel under test shall be mounted according to the manufacturer’s installation

instructions. If more than one way of mounting is specified the most onerous way shall be

chosen for each test. For electrical tests, this is the position leading to the largest heat build-

up of the light emitting surface. The orientation of the OLED panel shall be maintained during

the entire test.
5 Marking
5.1 Contents and location
Marking of the OLED panel shall be done according to Table 1.
Table 1 – Contents and location of marking
Parameters Product Packaging or product
datasheet or leaflet
Manufacturer (or responsible vendor) or trademark Mandatory
Polarity Mandatory
Model number or production code Mandatory Mandatory
Rated current or rated current range Mandatory
Rated voltage or rated voltage range Mandatory
Rated power Mandatory
Type of power supply (d.c. or a.c.) and frequency Mandatory
Shape and dimension Mandatory
Connecting information Mandatory
Mounting instruction Mandatory
Operating temperature range Mandatory
IP number Mandatory
Information for luminaire design Mandatory

The connecting information shall include methods of mechanical and electrical connection.

The information of the electrical connection may include the type of driver.

For marking of IP number, symbols for degree of protection shall be in accordance with

Section 3 of IEC 60598-1.
5.2 Durability and legibility of marking
Marking shall be durable and legible.

Compliance is checked by visual inspection and (for marking on the OLED panel) by trying to

remove the marking by rubbing the area lightly by hand for 15 s with a piece of smooth cloth,

dampened with water.
---------------------- Page: 9 ----------------------
– 8 – IEC 62868:2014 © IEC 2014
6 Construction
6.1 General

Wood, cotton, silk, paper and similar fibrous material shall not be used as insulation.

Compliance is checked by inspection.
6.2 Mechanical strength
The OLED panel shall have sufficient mechanical strength.
Compliance is checked by the vibration test.
For the vibration test, the OLED panel shall be mounted according to 4.2.

A sinusoidal vibration test is conducted according to IEC 60068-2-6 with the following

parameters:
– displacement: 0,35 mm
– acceleration: 50 m/s
– frequency range: 10 Hz to 500 Hz
– axes of vibration: 3
– duration: 3 × 10 cycles (10 times per axis)

After completion of the vibration test, the OLED panel shall be operated for 15 min under

conditions according to 4.2.
Compliance:

After the test, the OLED panel is checked by inspection. Any splintered or broken glass is not

accepted. Fire, smoke or flammable gas shall not be produced. The OLED panel shall have

no loosened parts which could impair the safety.

Electrical contacts which could not be touched before the vibration test (e.g. those in OLED

panels according to Figure A.3 and Figure A.4) shall not have become accessible after the

test.
6.3 Internal short circuit
An OLED panel with internal short circuit shall not cause any hazard.
Compliance is checked by the following test:

An internal short circuit shall be provoked intentionally in the OLED panel under test

according to instructions given by the manufacturer or according to a method described in

Annex C. The location of this internal short circuit shall be close to the edge of the light output

area at around 2 mm distance.

Before starting the test, the test sample of the OLED panel shall not be operated.

The test sample of the OLED panel shall be operated at the rated current for 30 min for

testing.

If the test sample does not generate the internal short circuit during the test operation, the

internal short circuit test shall be repeated with the same sample.
---------------------- Page: 10 ----------------------
IEC 62868:2014 © IEC 2014 – 9 –

If none of the methods described in the manufacturer’s instruction and Annex C generate an

internal short circuit after three attempts, the test sample passes the test.

Compliance: An OLED panel passes this test if there is no emission of flames or molten

material during the test. Any hot material from the sample shall not ignite a tissue paper, as

specified in 4.187 of ISO 4046-4:2002, spread below the OLED panel. Any splintered or

broken glass is not accepted.
6.4 Wireways

Wireways shall be smooth and free from sharp edges, burrs, flashes and the like, which might

cause abrasion of the insulation of the wiring. Parts such as sharp-edged screws shall not

protrude into wireways.
Compliance is checked by inspection.
6.5 Resistance to dust, solid objects and moisture

If an IP number is rated, the OLED panel shall comply with Section 9 of IEC 60598-1.

NOTE IP numbers for degrees of protection are explained in IEC 60598-1 Annex J.
7 Mechanical hazard

An OLED panel with glass edges or corners shall be free from sharp edges or points that

could create hazards during installation, normal operation or maintenance.

An OLED panel with thin metal foil or thin plastic film shall have protections against sharp

edges or points that could during installation, normal operation, or maintenance, create

hazards.

Compliance is checked by inspection and means of the sharp edge tester according to

IEC TR 62854.
8 Fault conditions

An OLED panel shall not impair safety under fault conditions that may occur during the

intended use.
Compliance is checked with the following overpower test.

The overpower test shall be conducted at an ambient temperature of 25 °C ± 5 °C unless

otherwise specified by the manufacturer or responsible vendor. The temperature shall be

maintained within ± 2 °C during the test.

The OLED panel shall be operated with rated current. The power shall be monitored at the

input side. The input power shall be increased until 150 % of the rated current or power is

reached. The test shall be continued for 15 min.

Compliance is checked by inspection. An OLED panel passes this fault test if there is no

emission of flames or molten material during the test. Any hot material from the sample shall

not ignite a tissue paper, as specified in 4.187 of ISO 4046-4:2002, spread below the OLED

panel. Any splintered or broken glass is not accepted.
---------------------- Page: 11 ----------------------
– 10 – IEC 62868:2014 © IEC 2014
9 Insulation resistance and electric strength
9.1 Insulation resistance
The requirements according to 10.2.1 of IEC 60598-1 apply.
9.2 Electric strength
The requirements according to 10.2.2 of IEC 60598-1 apply.
10 Thermal stress
OLED panels shall sustain thermal stress.

The thermal stress test shall be conducted at a specified ambient temperature in a climate

chamber. The temperature shall be any convenient temperature in the range between 60 °C

and 70 °C. The temperature shall be maintained within ± 2 °C during the stabilization and test.

The OLED panel shall be operated with rated current. After stabilization the test shall be

continued for 60 min.

Compliance is checked by inspection. An OLED panel passes this test, if no failure occurs. In

case of performance failure, an OLED panel is considered to pass this test, if no fire, smoke

or flammable gas is produced. Any splintered or broken glass is not accepted.
11 Creepage distances and clearances
Section 11 of IEC 60598-1 applies to individual OLED panels.
12 Resistance to heat and fire
12.1 Resistance to heat

An OLED panel shall have sufficient heat resistance. The exterior of the insulation material

should have a function of protecting an electric shock and have heat resistance.

External parts of insulating material providing protection against electric shock, and parts of

insulating material retaining live parts in position shall be sufficiently resistant to heat.

The ball pressure test does not have to be applied to plastic parts of an OLED panel which

provide supplementary insulation.

Compliance is checked by the ball pressure test according to13.2.1 of IEC 60598-1.

12.2 Resistance to fire

Parts of insulating material retaining live parts in position, and external parts of insulating

material providing protection against electric shock shall be resistant to
...

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