1、BRITISH STANDARDBS EN 61747-3:2006Liquid crystal display devices Part 3: Liquid crystal display (LCD) cells Sectional specificationThe European Standard EN 61747-3:2006 has the status of a British StandardICS 31.120g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g5
2、4g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 61747-3:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 December 2006 BSI 2006ISBN 0 580 49819 0National forewordT
3、his British Standard was published by BSI. It is the UK implementation of EN 61747-3:2006. It is identical with IEC 61747-3:2006. It supersedes BS EN 61747-3:2000 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee EPL/47, Semiconductors.A list of organiza
4、tions represented on EPL/47 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations. Amendme
5、nts issued since publicationAmd. No. Date CommentsEUROPEAN STANDARD EN 61747-3 NORME EUROPENNE EUROPISCHE NORM September 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secre
6、tariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61747-3:2006 E ICS 31.120 Supersedes EN 61747-3:1999English version Liquid crystal display devices Part 3: Liquid crystal display (
7、LCD) cells - Sectional specification (IEC 61747-3:2006) Dispositifs daffichage cristaux liquides Partie 3: Cellules daffichage cristaux liquides (LCD) - Spcification intermdiaire (CEI 61747-3:2006) Flssigkristall-Anzeige-Bauelemente Teil 3: Flssigkristall-Anzeigezellen (LCD-Zellen) - Rahmenspezifika
8、tion (IEC 61747-3:2006) This European Standard was approved by CENELEC on 2006-09-01. 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 li
9、sts and bibliographical 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
10、responsibility 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, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Gre
11、ece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword The text of document 110/82/FDIS, future edition 2 of IEC 61747-3, prepared by IEC TC 110,
12、Flat panel display devices was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61747-3 on 2006-09-01. This European Standard supersedes EN 61747-3:1999. The main changes with regard to EN 61747-3:1999 concern editorial updating in accordance with current ISO/IEC directiv
13、es. This part of EN 61747 is a sectional specification for liquid crystal display cells. It should be read together with the generic specification to which it refers. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical na
14、tional standard or by endorsement (dop) 2007-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2009-09-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61747-3:2006 was approved by CENELEC as a E
15、uropean Standard without any modification. _ EN 61747-3:2006 2 CONTENTS 1 Scope.4 2 Normative references .4 3 Terms and definitions .4 4 Quality assessment procedure5 4.1 Primary stage of manufacture5 4.2 Production process5 4.3 Subcontracting 6 4.4 Structural similarity procedures .6 4.5 Qualificat
16、ion approval procedure .8 4.6 Quality conformance test.8 4.7 Capability approval procedure .9 4.8 Screening9 4.9 Delayed deliveries.9 5 Test and measurement procedures.9 Table 1 Test dependent criteria for structural similarity 10 Table 2 Qualification approval tests .11 Table 3 Groups and categorie
17、s of assessed quality .12 Table 4 Group A Lot-by-lot tests .12 Table 5 Group B Lot-by-lot tests .12 Table 6 Group C: Periodic tests .13 Table 7 Sampling requirements for group A tests.14 Table 8 Sampling requirements for group B and C tests.14 Table 9 Screening test item and conditions14 EN 61747-3:
18、2006 3 Annex ZA (normative) Normative references to international publications with theircorresponding European publications15LIQUID CRYSTAL DISPLAY DEVICES Part 3: Liquid crystal display (LCD) cells Sectional specification 1 Scope This sectional specification applies to liquid crystal cells of the
19、segment type monochrome . It gives details of the quality assessment procedures, the inspection requirements, screening sequences, sampling requirements and test and measurement procedures required for the assessment of liquid crystal display cells. Instead of the qualification approval procedure, t
20、he capability approval procedure can be applied (see Clause 4 of IECQ 001002-3; however, at present the capability approval procedure for liquid crystal display cells is under consideration) for all products manufactured in a defined process. All the requirements of this specification remain valid,
21、unless modified by the requirements set out in 4.7 of this standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced do
22、cument (including any amendments) applies. IEC 61747-1, Liquid crystal and solid-state display devices Part 1: Generic specification IEC 61747-5, Liquid crystal and solid-state display devices Part 5: Environmental, endurance and mechanical test methods IEC 61747-6, Liquid crystal and solid-state di
23、splay devices Part 6: Measuring methods for liquid crystal modules Transmissive type IECQ 001002-3:2005, IEC Quality Assessment System for Electronic Components (IECQ) Rules of Procedure Part 3: Approval procedures 3 Terms and definitions For the purposes of this document, the following terms and de
24、finitions apply. 3.1 production line an arrangement of process operations in production permitting sequential occurrence at various stages of production EXAMPLES of processes: a) electrode patterning process; b) alignment treatment process; c) assembly process; EN 61747-3:2006 4 d) liquid crystal ma
25、terial filling process; e) finishing process; f) inspection process. NOTE Quality assessment procedures are not included in these phases. 3.2 production lot devices of the same type, manufactured in the same production lines and passing through the same nominated process, normally within one month 3
26、.3 major changes any change in the manufacturing process or technology which could affect the quality or performance of a product supplied to an approved specification, or which could require a product to be transferred from one similarity group to another group (see 4.4.2 below) EXAMPLES a) electro
27、de patterning: complete different pattern; b) material of substrate: thickness of glass substrate; c) type of LC material: type of electro-optical effect, e.g. TN, STN, etc.; d) pin assignment change. NOTE 1 Not considered as a major change: equipment change without changing the technology. NOTE 2 I
28、t is the responsibility of the chief inspector to decide whether the change is major or not. NOTE 3 Any major change is only to be implemented with notification and demonstration by test evidence of quality to the National Supervising Inspectorate (NSI). 4 Quality assessment procedure 4.1 Primary st
29、age of manufacture The primary stage of manufacture of liquid crystal display cells is the first process of the patterning of electrodes. 4.2 Production process The production process of liquid crystal display cells is classified as follows: a) Electrode patterning process This process is the set of
30、 manufacturing process operations from the primary stage to the last step for the patterning of the electrodes. b) Alignment treatment process This process is the set of manufacturing process operations to form the alignment layer on the glass substrate for controlling the liquid crystal molecular d
31、irection. c) Assembly process This process is the set of manufacturing process operations comprising the seal printing and the transfer plate assembling. EN 61747-3:2006 5 d) Liquid crystal material filling process This process is the set of manufacturing process operations comprising the filling of
32、 liquid crystal material between the two parallel glass substrates, and the sealing. e) Finishing process This process is the final set of manufacturing process operations comprising the fitting of polarizer and reflector, as wekk as the marking. f) Inspection process This process is the final set o
33、f process operations before lot release, comprising visual inspection of dimensions and electrical and optical characteristics. 4.3 Subcontracting When the approved manufacturer invokes the rules of procedure concerning subcontracting (see Annex B to Clause 2 of IECQ 001002-3), he shall ensure that
34、the following conditions are satisfied: a) The subcontracted manufacturing process may be either a part of, or a whole of, the cell and/or module manufacturing process, unconditionally, including screening steps which are incorporated in them. Screening operations applied after the assembly process
35、may also be independently subcontracted. b) The NSI shall be satisfied that the chief inspector who is certifying the components under the IECQ system has been provided with the full quality assessment and inspection documentation of any operation outside the IECQ geographical area. The documentatio
36、n shall include the inspection records for each sample of the product which undergoes inspection; regularly verifies that the quality assessment and inspection is applied in accordance with the agreed requirements. c) The chief inspector shall be provided with, and shall agree with the procedures fo
37、r the transfer of the parts from the place of manufacture within the IECQ geographical area which is certifying the components. The NSI shall be informed of, and have access to the applicable documents. d) Any changes in inspection requirements and manufacturing procedures shall be reported back to
38、the chief inspector who is certifying the modules. The major changes shall be reported by an approved chief inspector to the NSI (see 3.3, NOTE 3). e) The approved manufacturer shall perform the acceptance tests prescribed by the detail specification for the components he is certifying. He can perfo
39、rm the acceptance tests in a facility outside the IECQ geographical area, provided that this facility is supervised by the NSI. f) Acceptance tests can be subcontracted to approved test laboratories within the IECQ geographical area. 4.4 Structural similarity procedures 4.4.1 General Structural simi
40、larity procedures are intended to permit a reduction in the number of inspection lots for quality assessment that shall be tested. EN 61747-3:2006 6 Therefore, in case of reassessment by the extension of approved types or the change of the design, the testing data which was performed within the same
41、 grouping products may be used. 4.4.2 Structurally similar cells Structurally similar cells are produced by one manufacturer, essentially to the same design, with the same material, manufacturing process and method. The crucial criterion for the grouping of types of cells as structurally similar is
42、that the differences between the various types have no influence on the results of the test for which the group has been formed. 4.4.3 Test-dependent criteria for structural similarity The test-dependent criteria for structural similarity applicable to group B, lot-by-lot inspections, and group C, p
43、eriodic tests, are given in Table 1. Items a) to i) specify the interpretation of these criteria for structural similarity. a) Materials Glass substrate: the material for glass substrate shall be the same. Material of alignment layer: the material for alignment layer shall be the same. Sealing mater
44、ial: the sealing material shall be the same. Liquid crystal material: the liquid crystal material shall be the same. Materials of polarizer and reflector: the materials of polarizer and reflector shall be the same. b) Cell size Where the cells have within 150 % to 50 % area, they can be considered a
45、s structurally similar. c) Electrode construction The material and the basic design shall be the same. d) Process (common) The basic process and process materials shall be the same. e) Production lines (common) The cells shall be made on the same lines. f) Methods and measures Essential technical me
46、thods and measures used shall be the same, e.g. type of electro-optical effect (TN/STN, etc.), optical mode of operation (reflective, transflective, etc.). g) Structure The thickness of the glass substrate, gap of the cell, etc. shall be the same. h) Marking The same material shall be used for marki
47、ng, and the essential process condition of marking shall be the same. i) Rating The rating values as specified on the detail specification shall be the same, except for the items dependent on the cell dimensions, such as current consumption, electrical capacitance, etc. EN 61747-3:2006 7 4.5 Qualifi
48、cation approval procedure Qualification approval shall normally be granted when satisfactory results have been achieved on completion of the rules of procedure (see 3.1.5 of IEC QC 001002-3) and the inspection requirements (including testing items, condition, final sampling size, etc.) to be used as
49、 specified in Table 2 of this specification. However, in case of request, the rules of procedure (see 3.1.5 of IEC QC 001002-3) may be used, with the sampling requirements in accordance with those stated in Table 7 and Table 8. 4.6 Quality conformance test 4.6.1 General Quality conformance test is defined in 5.6 of IEC 61747-1. 4.6.2 Division into groups and subgroups Division into groups and subgroups shall be in conformance with 5.6.1 of IEC 61747-1. In addition, the groups and subgroups shall s
