IEC 62341-1-2:2007

Organic light emitting diode displays - Part 1-2: Terminology and letter symbols

Gives preferred terms, their definitions and symbols for organic light emitting diode (OLED) displays; with the object of using the same terminology when publications are prepared in different countries.

Afficheurs à diodes électroluminescentes organiques - Partie 1-2: Terminologie et symboles littéraux

La présente partie de la CEI 62341 fournit les termes préférentiels, leurs définitions et symboles pour les afficheurs à diodes électroluminescentes organiques (OLED, Organic Light Emitting Diode); dans le but d'utiliser la même terminologie lorsque des publications sont établies dans différents pays.

General Information

• Status: Published
• Publication Date: 26-Nov-2007
• ICS: 31.260 - Optoelectronics. Laser equipment
• Technical Committee: TC 110 - Electronic displays
• Drafting Committee: WG 5 - TC 110/WG 5
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 24-Apr-2014

Relations

• Revised: IEC 62341-1-2:2014 - Organic light emitting diode (OLED) displays - Part 1-2: Terminology and letter symbols
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62341-1-2
Edition 1.0 2007-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Organic light emitting diode displays –
Part 1-2: Terminology and letter symbols

Afficheurs à diodes électroluminescentes organiques –
Partie 1-2: Terminologie et symboles littéraux

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IEC 62341-1-2
Edition 1.0 2007-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Organic light emitting diode displays –
Part 1-2: Terminology and letter symbols

Afficheurs à diodes électroluminescentes organiques –
Partie 1-2: Terminologie et symboles littéraux

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
U
CODE PRIX
ICS 31.260 ISBN 2-8318-9433-6
– 2 – 62341-1-2 © IEC:2007
CONTENTS
FOREWORD.3

1 Scope.5

2 Terms and definitions .5

2.1 Classification of terms .5

2.2 Fundamental terms.5

2.3 Terms related to physical properties.8

2.4 Terms related to constructive elements .11
2.5 Terms related to performances and specifications .15
2.6 Terms related to production process.23
3 Letter symbols (Quantity symbols / Unit symbols).24
3.1 Classification.24
3.2 Letter symbols.24

Annex A (normative) Supplement of term.26

Bibliography.28

Figure A.1 – Pixel Pitch .26
Figure A.2 – Viewing Direction.27

Table 1 – Fundamental symbols .24
Table 2 – Symbols related to physical properties .25
Table 3 – Symbol related to constructive elements .25
Table 4 – Symbols related to performances and specifications .25

62341-1-2 © IEC:2007 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION

___________
ORGANIC LIGHT EMITTING DIODE DISPLAYS –

Part 1-2: Terminology and letter symbols

FOREWORD
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International Standard IEC 62341-1-2 has been prepared by IEC technical committee 110:
Flat panel display devices.
The text of this standard is based on the following documents:
FDIS Report on voting
110/125/FDIS 110/132/RVD
Full information on the voting for the approval on 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.

– 4 – 62341-1-2 © IEC:2007
A list of all the parts in the IEC 62341 series, under the general title Organic light emitting
diode displays, can be found on the IEC website.

The committee has decided that the contents of this publication will remain unchanged until
the maintenance result 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.
62341-1-2 © IEC:2007 – 5 –
ORGANIC LIGHT EMITTING DIODE DISPLAYS –

Part 1-2: Terminology and letter symbols

1 Scope
This part of IEC 62341 gives preferred terms, their definitions and symbols for organic light

emitting diode (OLED) displays; with the object of using the same terminology when
publications are prepared in different countries.
2 Terms and definitions
For purposes of this document, the following terms and definitions apply.
2.1 Classification of terms
Terms for organic light emitting diode (OLED) displays are classified as follows.
a) Fundamental terms
b) Terms related to physical properties
c) Terms related to constructive elements
d) Terms related to performances and specifications
e) Terms related to production process
2.2 Fundamental terms
2.2.1
active matrix (addressed) driving
matrix driving method in which each pixel or subpixel has at least one active switching (e.g.
diode or transistor) and storage element
2.2.2
addressing method
method of selecting each pixel or subpixel for activation
2.2.3
alphanumeric display
display that is able to show a limited set of characters comprising at least letters and Arabic
numerals
2.2.4
area-colour display
display in which the display panel is partitioned into several parts, each one shows a colour
different from each other
2.2.5
bottom emission
device structure, in which almost all light emitted passes through a substrate on which organic
electroluminescent layers are made

– 6 – 62341-1-2 © IEC:2007
2.2.6
bottom emission display
display using bottom emission structure

2.2.7
constant-current driving
driving method where a constant current is applied to each pixel or subpixel

2.2.8
constant-voltage driving
driving method where a constant voltage is applied to each pixel or subpixel

2.2.9
display with a bright background
display showing dark images on a bright background
2.2.10
display with a dark background
display showing bright images on a dark background
2.2.11
doping method
method of adding a small quantity of different material to host material
NOTE This method is used in order to improve device characteristics or to change the emission spectrum.
2.2.12
driving method
specific method for activating each pixel or subpixel
2.2.13
dual emission display
display in which light is emitted from both sides (top and bottom) of a substrate on which
organic electroluminescent layers are m
...