1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationOrganic light emitting diode displays Part 1-2: Terminology and letter symbolsBS EN 62341-1-2:2009National forewordThis British Standard is the UK implementation of EN 62341-1-2:
2、2009. It isidentical to IEC 62341-1-2:2007.The UK participation in its preparation was entrusted to Technical CommitteeEPL/47, Semiconductors.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessar
3、y provisions of acontract. Users are responsible for its correct application. BSI 2010 ISBN 978 0 580 53569 7 ICS 01.040.31; 31.260Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Stra
4、tegy Committee on 28 February 2010Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 62341-1-2:2009EUROPEAN STANDARD EN 62341-1-2 NORME EUROPENNE EUROPISCHE NORM December 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisat
5、ion Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: Avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62341-1-2:2009 E ICS 31.260 English version Organi
6、c light emitting diode displays - Part 1-2: Terminology and letter symbols (IEC 62341-1-2:2007) Afficheurs diodes lectroluminescentes organiques - Partie 1-2: Terminologie et symboles littraux (CEI 62341-1-2:2007) Anzeigen mit organischen Leuchtdioden - Teil 1-2: Begriffe und Buchstabensymbole(IEC 6
7、2341-1-2:2007) This European Standard was approved by CENELEC on 2009-12-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and b
8、ibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsib
9、ility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Gr
10、eece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 62341-1-2:2009EN 62341-1-2:2009 - 2 - Foreword The text of document 110/125/FDIS, future edit
11、ion 1 of IEC 62341-1-2, prepared by IEC TC 110, Flat panel display devices, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62341-1-2 on 2009-12-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of
12、an identical national standard or by endorsement (dop) 2010-09-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-12-01 _ Endorsement notice The text of the International Standard IEC 62341-1-2:2007 was approved by CENELEC as a European Standard wi
13、thout any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated: IEC 60027 NOTE Harmonized in EN 60027 series (not modified). _ BS EN 62341-1-2:2009 2 62341-1-2 IEC:2007 CONTENTS 1 Scope.5 2 Terms and definitions .5 2.1 Classification
14、of terms .5 2.2 Fundamental terms5 2.3 Terms related to physical properties8 2.4 Terms related to constructive elements .11 2.5 Terms related to performances and specifications .15 2.6 Terms related to production process23 3 Letter symbols (Quantity symbols / Unit symbols).24 3.1 Classification.24 3
15、.2 Letter symbols.24 Annex A (normative) Supplement of term.26 Bibliography28 Figure A.1 Pixel Pitch 26 Figure A.2 Viewing Direction27 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 perf
16、ormances and specifications .25 BS EN 62341-1-2:200962341-1-2 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 objec
17、t 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) Fu
18、ndamental 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 subp
19、ixel 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
20、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 B
21、S EN 62341-1-2:2009 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
22、 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
23、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
24、organic electroluminescent layers are made 2.2.14 emissive display display with pixels or subpixels that emit light 2.2.15 flexible display display that is mechanically flexible 2.2.16 full-colour display display capable of showing at least 3 primary colours, the colour gamut of which includes a whi
25、te area (e.g. containing D50, D65, D75) and having at least 64 grey scale per primary 2.2.17 matrix display display consisting of regularly arranged pixels and/or subpixels, e.g. arranged in rows and columns 2.2.18 molecular organic light emitting diode display organic light emitting diode display c
26、omposed of organic (small) molecules BS EN 62341-1-2:200962341-1-2 IEC:2007 7 2.2.19 monochrome display display capable of reproducing only one colour 2.2.20 multi-colour display display other than monochrome display and full-colour display 2.2.21 multiplex driving driving method of time-share drivi
27、ng in which one common electrode is addressed to more than two pixels or subpixels 2.2.22 organic electroluminescence OEL emission from organic materials by recombination of negatively and positively charged carriers when forward electric bias is applied 2.2.23 organic electroluminescent display OEL
28、 display display showing visual information using organic electroluminescence 2.2.24 organic light emitting diode OLED light emitting diode in which light is emitted from organic materials 2.2.25 organic light emitting diode display OLED display display incorporating organic light emitting diodes 2.
29、2.26 organic light emitting diode display module organic light emitting diode display panel, its driving electronics and optical films if used in the device design 2.2.27 organic light emitting diode (display) panel display panel of an organic light emitting diode display without external drivers 2.
30、2.28 passive matrix addressing matrix driving method in which each pixel or subpixel is addressed directly by applied signals on the addressing and data lines 2.2.29 polymer organic light emitting diode light emitting diode in which light is emitted from polymeric materials NOTE The term “polymer li
31、ght emitting diode” is sometimes used. 2.2.30 segment display display with symbols built-up by fixed patterns and segments BS EN 62341-1-2:2009 8 62341-1-2 IEC:2007 2.2.31 standard atmospheric condition standard conditions of atmosphere for tests and measurements NOTE Generic term of “standard refer
32、ence atmosphere“, “standard atmospheres for referee“ and “standard atmospheric conditions for measurements and tests“. 2.2.32 standard light source light source that approximates a defined illuminant, such as CIE illuminant A and D65 2.2.33 standard reference atmosphere reference atmospheric conditi
33、ons used for standardizing the data measured under different atmospheric conditions 2.2.34 standard test condition all of conditions of the environment for tests and measurements 2.2.35 static driving method of driving in which all pixels are activated simultaneously and constantly 2.2.36 top emissi
34、on device structure, in which almost all light emitted (toward) outside from a (top) side, where OLED device is formed on, of a substrate 2.2.37 top emission display display using top emission structure 2.2.38 transparent display display in which the display area is visibly transparent 2.2.39 zone-c
35、olour display NOTE See area-colour display. 2.3 Terms related to physical properties 2.3.1 charge carrier density density of mobile electrons and/or holes in a material NOTE Expressed in cm-3. 2.3.2 crystallization temperature temperature at which material changes into crystalline state when it is c
36、ooled from liquid state, molten state or solution form NOTE In case of amorphous material, the temperature at which material changes into partly or wholly crystalline state. 2.3.3 electroluminescence spectrum spectral distribution of the light emitted by the process of electroluminescence BS EN 6234
37、1-1-2:200962341-1-2 IEC:2007 9 2.3.4 electron affinity energy between the vacuum level and the bottom of the conduction band NOTE Expressed in eV. 2.3.5 energy level discrete energy state of the atom or the molecule or the exciton 2.3.6 external quantum efficiency ratio of the number of the photons
38、emitted from an organic light emitting diode divided by the number of the injected electrons or holes NOTE An external quantum efficiency is indicated as a product of an internal quantum efficiency and an external light out-coupling efficiency. 2.3.7 fluorescence yield (efficiency) ratio of the numb
39、er of fluorescent photons divided by the number of photons absorbed into the material 2.3.8 fluorescence emission of light from an excited singlet state of materials 2.3.9 glass transition temperature temperature at which an amorphous material freezes when cooled rapidly to become a solidified super
40、cooled liquid NOTE This temperature depends on the cooling rate and is characterized by a change in the expansion coefficient. 2.3.10 highest occupied molecular orbitals HOMO highest molecular orbitals occupied by electrons 2.3.11 injection barrier energy barrier of the carrier injection at the inte
41、rface of organic layer and organic layer or at the interface of organic layer and electrode 2.3.12 internal quantum efficiency ratio of the number of the photons produced from the electric charges injected from the electrode divided by the number of the injected electrons or holes NOTE An internal q
42、uantum efficiency is indicated as a product of a recombination probability of electrons and holes, an efficiency of exciton generation through carrier recombination and an efficiency of photon generation from exciton. 2.3.13 ionization potential minimum energy required to remove an electron from a s
43、pecified atom or molecule to such a distance that there is no electrostatic interaction between ion and electron NOTE Expressed in eV. BS EN 62341-1-2:2009 10 62341-1-2 IEC:2007 2.3.14 lowest unoccupied molecular orbitals LUMO lowest molecular orbitals unoccupied by electrons 2.3.15 material purity
44、amount of the desired substance within a material product NOTE Expressed in wt%. 2.3.16 melting point temperature at which the solid state material maintains equilibrium between liquid state and solid state at a certain pressure NOTE Usually at 1013 hPa. 2.3.17 mobility proportionality factor betwee
45、n electron (or hole) drift velocity and electric field NOTE Expressed in cm2V-1s-1. 2.3.18 optical axis distinguished direction in optically anisotropic materials and elements, e.g. polarizers, wave plates and retarders 2.3.19 phosphorescence yield (efficiency) ratio of the number of phosphorescent
46、photons divided by the number of photons absorbed into the material 2.3.20 phosphorescence emission of light from an excited triplet state of materials 2.3.21 photoluminescence spectrum spectral distribution of the light emitted from materials excited by light of wavelengths shorter than that of the
47、 photoluminescent emission 2.3.22 polarization axis direction of electrical field vector of polarized light 2.3.23 quantum efficiency ratio of the number of generated photons divided by the number of input photons or injected electric charges 2.3.24 quantum yield NOTE See quantum efficiency. 2.3.25
48、sheet resistance electrical resistance of a conductive thin film with a square shape; measured from one side of the square to the opposite side BS EN 62341-1-2:200962341-1-2 IEC:2007 11 NOTE Defined as Rs=/d, where : resistivity coefficient, d: thickness. 2.3.26 square resistance NOTE See sheet resi
49、stance. 2.3.27 surface roughness degree of roughness of surface or interface NOTE Usually, expressed in mean square deviation per cm2of surface height measured by AFM or similar method. 2.3.28 work function minimum energy required to remove an electron from the Fermi level of a material into the vacuum level NOTE Expressed in eV. 2.4 Terms related to constructive elements 2.4.1 amorphous silicon solid-state silicon without distinct crystalline structure NOTE Carrier mobility is
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