EN 62595-1-1:2013
(Main)LCD backlight unit - Part 1-1: Generic specification
LCD backlight unit - Part 1-1: Generic specification
IEC 62595-1-1:2013 is a generic specification for backlight unit (BLU) for liquid crystal displays. It defines general procedures for quality assessment and gives general rules for the measuring methods of electrical and optical characteristics, rules for climatic and mechanical tests, and rules for endurance tests.
LCD-Hinterleuchtungseinheiten – Teil 1-1: Allgemeine Anforderungen
Ecran LCD à rétroéclairage - Partie 1-1 : Spécification générique
La CEI 62595-1-1:2013 est une spécification générique pour les écrans à rétro-éclairage pour afficheurs à cristaux liquides. Il définit les procédures générales d'évaluation de la qualité et donne des règles générales pour les méthodes de mesure des caractéristiques électriques et optiques, des règles pour les essais climatiques et mécaniques et des règles pour les essais d'endurance.
Zaslon LCD z ozadnjo osvetlitvijo - 1-1. del: Generična specifikacija
Ta del standarda IEC 62282 določa minimalne varnostne zahteve za namestitev notranjih in zunanjih nepremičnih elektroenergetskih sistemov z gorivnimi celicami v skladu s standardom IEC 62282-3-100 in se uporablja za namestitev sistemov: – namenjenih za električno povezavo z glavnim električnim omrežjem, neposredno ali prek lahko dostopnega ročnega stikala ali odklopnika; – namenjenih za samostojni sistem za distribucijo električne energije; – namenjenih za dobavo enosmernega ali izmeničnega toka; – s sposobnostjo pridobivanja koristne toplote ali brez nje. Ta standard je omejen na pogoje, ki se lahko vzpostavijo med postopkom namestitve in so lahko nevarni za osebje ali poškodujejo opremo ali imetje izven elektroenergetskega sistema z gorivnimi celicami.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2013
=DVORQ/&']R]DGQMRRVYHWOLWYLMRGHO *HQHULþQDVSHFLILNDFLMD
LCD Backlight Unit - Part 1-1: Generic specification
/
Ecran LCD à rétroéclairage - Partie 1-1 : Spécification générique
Ta slovenski standard je istoveten z: EN 62595-1-1:2013
ICS:
31.120 Elektronske prikazovalne Electronic display devices
naprave
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 62595-1-1
NORME EUROPÉENNE
July 2013
EUROPÄISCHE NORM
ICS 31.120; 31.260
English version
LCD backlight unit -
Part 1-1: Generic specification
(IEC 62595-1-1:2013)
Ecran LCD à rétroéclairage - LCD-Hinterleuchtungseinheiten – Teil 1-1:
Partie 1-1 : Spécification générique Allgemeine Anforderungen
(CEI 62595-1-1:2013) (IEC 62595-1-1:2013)
This European Standard was approved by CENELEC on 2013-05-14. 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 bibliographical references concerning such national standards may be obtained on
application to the CEN-CENELEC Management Centre 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 responsibility of a CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62595-1-1:2013 E
Foreword
The text of document 110/387/CDV, future edition 1 of IEC 62595-1-1, prepared by IEC/TC 110
"Electronic display devices" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 62595-1-1:2013.
The following dates are fixed:
(dop) 2014-02-14
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2016-05-14
standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 62595-1-1:2013 was approved by CENELEC as a
European Standard without any modification.
- 3 - EN 62595-1-1:2013
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE When an international publication has been modified by common modifications, indicated by
(mod), the relevant EN/HD applies.
Publication Year Title EN/HD Year
IEC 60027 all parts Letter symbols to be used in electrical EN 60027 all parts
technology -
Part 1: General
IEC 60410 1973 Sampling plans and procedures for - -
inspection by attributes
IEC 60617 all parts Graphical symbols for diagrams - -
IEC 60747-1 2006 Semiconductor devices - - -
+ corr. August 2008 Part 1: General
IEC 60747-10 1991 Semiconductor devices - Discrete devices - - -
Part 10: Generic specifictaion for discrete
divices and integrated circuits
IEC 61747-10-2 Liquid crystal display devices - - -
Part 10-2: Environmental, endurance and
mechanical test methods - Environmental
and endurance
IEC 62595-1-2 2011 LCD backlight unit - EN 62595-1-2 2012
Part 1-2: Terminology and letter symbols
IEC 62595-2 LCD backlight unit - EN 62595-2
Part 2: Electro-optical measurement
methods of LED backlight unit for liquid
crystal displays
ISO 80000-1 2009 Quantities and units - EN ISO 80000-1 2013
Part 1: General
IEC QC 001002-2 1998 IEC Quality Assessment System for - -
Electronic Components (IECQ) - Rules of
Procedure - Part 2: Documentation
IEC QC 001002-3 2005 IEC Quality Assessment System for - -
Electronic Components (IECQ) - Rules of
Procedure - Part 3: Approval procedures
IEC 62595-1-1 ®
Edition 1.0 2013-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
LCD backlight unit –
Part 1-1: Generic specification
Écran LCD à rétro-éclairage –
Partie 1-1: Spécification générique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX T
ICS 31.120; 31.260 ISBN 978-2-83220-715-4
– 2 – 62595-1-1 © IEC:2013
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Technical aspects . 7
3.1 Order of precedence. 7
3.2 Terminology, units and symbols . 7
3.3 Preferred values of temperature, humidity and pressure . 7
3.4 Marking . 7
3.4.1 BLU identification . 7
3.4.2 BLU traceability . 7
3.4.3 Packing . 7
3.5 Categories of assessed quality . 8
3.6 Screening . 8
3.7 Handling . 8
4 Quality assessment procedures . 8
4.1 General . 8
4.2 Eligibility for qualification approval . 8
4.3 Primary stage of manufacture . 9
4.4 Commercially confidential information . 9
4.5 Formation of inspection lots . 9
4.6 Structurally similar devices . 9
4.7 Granting of qualification approval . 9
4.8 Quality conformance inspection . 9
4.8.1 General . 9
4.8.2 Division into groups and subgroups . 9
4.8.3 Inspection requirements . 11
4.8.4 Supplementary procedure for reduced inspection . 12
4.8.5 Sampling requirements for small lots . 12
4.8.6 Certified records of released lots (CRRL) . 12
4.8.7 Delivery of devices subjected to destructive or non-destructive tests . 12
4.8.8 Delayed deliveries . 13
4.8.9 Supplementary procedure for deliveries . 13
4.9 Statistical sampling procedures . 13
4.9.1 General . 13
4.9.2 AQL sampling plans . 13
4.9.3 LTPD sampling plans . 13
4.10 Endurance tests . 13
4.11 Endurance tests where the failure rate is specified . 13
4.11.1 Specification of failure rate . 13
4.11.2 General . 13
4.11.3 Selection of samples . 13
4.11.4 Failure . 13
4.11.5 Endurance test time and sample size . 14
4.11.6 Procedure to be used if the number of observed failures exceed the
acceptance number . 14
4.12 Accelerated test procedures . 14
62595-1-1 © IEC:2013 – 3 –
4.13 Capability approval . 14
5 Test and measurement procedures . 15
5.1 Standard atmospheric conditions . 15
5.2 Physical examination . 15
5.2.1 Visual examination . 15
5.2.2 Dimensions. 15
5.2.3 Permanence of marking . 15
5.3 Electrical and optical measurements . 15
5.3.1 General conditions and precautions . 15
5.3.2 Alternative methods . 16
5.4 Environmental tests . 16
Annex A (informative) Examples of BLU drawings . 17
Annex B (informative) Lot tolerance percentage defective (LTPD) sampling plans . 19
Figure A.1 – A front view of BLU . 17
Figure A.2 – A rear view of BLU . 17
Figure A.3 – A lateral view of BLU . 18
Figure A.4 – Example of LED edge backlight unit . 18
Figure A.5 – Example of LED direct backlight unit . 18
Table B.1 – LTPD sampling plans (1 of 2) . 20
Table B.2 – Hypergeometric sampling plans for small lot sizes of 200 or less . 22
– 4 – 62595-1-1 © IEC:2013
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LCD BACKLIGHT UNIT –
Part 1-1: Generic specification
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all nation
...
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