1、 IEC 61747-3 Edition 3.0 2015-04 INTERNATIONAL STANDARD Liquid crystal display devices Part 3: Liquid crystal display (LCD) cells Sectional specification IEC 61747-3:2015-04(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2015 IEC, Geneva, Switzerland All rights reserved. Unless otherwise spec
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10、ore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. IEC 61747-3 Edition 3.0 2015-04 INTERNATIONAL STANDARD Liquid crystal display devices Part 3: Liquid crystal display (LCD) cells Sectional specif
11、ication INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 31.120 ISBN 978-2-8322-2570-7 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. 2 IEC 61747-3:2015 IEC 2015 CONTENTS FOREWORD . 3 1 Scope 5
12、2 Normative references 5 3 Terms and definitions 5 4 Quality assessment procedure . 6 4.1 Primary stage of manufacture . 6 4.2 Production process . 6 4.3 Subcontracting 7 4.4 Structural similarity procedures . 7 4.4.1 General . 7 4.4.2 Structurally similar cells . 7 4.4.3 Test-dependent criteria for
13、 structural similarity 7 4.5 Qualification approval procedure . 8 4.6 Quality conformance test 8 4.6.1 General . 8 4.6.2 Division into groups and subgroups . 8 4.6.3 Groups and categories 9 4.6.4 Group A Lot-by-lot tests 9 4.6.5 Group B Lot-by-lot tests 9 4.6.6 Group C Periodic tests 9 4.6.7 Group D
14、 Periodic tests 9 4.6.8 Dimensions to be checked . 9 4.6.9 Sampling requirements (fixed sampling sizes) . 9 4.7 Capability approval procedure . 9 4.8 Screening . 9 4.9 Delayed deliveries 10 5 Test and measurement procedures 10 Table 1 Test-dependent criteria for structural similarity 11 Table 2 Qual
15、ification approval tests . 12 Table 3 Groups and categories of assessed quality . 13 Table 4 Group A Lot-by-lot tests . 13 Table 5 Group B Lot-by-lot tests . 13 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 te
16、sts . 15 Table 9 Screening test item and conditions 15 IEC 61747-3:2015 IEC 2015 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ LIQUID CRYSTAL DISPLAY DEVICES Part 3: Liquid crystal display (LCD) cells Sectional specification FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldw
17、ide 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 act
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26、lications. 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 o
27、f patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61747-3 has been prepared by IEC technical committee 110: Electronic display devices. This International Standard is a sectional specification for liquid crystal display cells
28、. It is be used in conjunction with IEC 61747-1-1:2014. This third edition cancels and replaces the second edition, published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) All the ref
29、erences to IECQ and QC were removed in accordance with ISO/IEC Directives Part 2, 6.7.1 and 6.7.2; 4 IEC 61747-3:2015 IEC 2015 b) Updated normative references. The text of this standard is based on the following documents: CDV Report on voting 110/532/CDV 110/616/RVC Full information on the voting f
30、or 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. A list of all the parts in the IEC 61747 series, under the general title Liquid crystal display devices, can be fou
31、nd on the IEC website. Future standards in this series will carry the new general title as cited above. Titles of existing standards in this series will be updated at the time of the next edition. The committee has decided that the contents of this publication will remain unchanged until the stabili
32、ty 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. A bilingual version of this publication may be issued at a later date. IEC 617
33、47-3:2015 IEC 2015 5 LIQUID CRYSTAL DISPLAY DEVICES Part 3: Liquid crystal display (LCD) cells Sectional specification 1 Scope This part of IEC 61747 applies to liquid crystal cells of the segment type monochrome. It gives details of the quality assessment procedures, inspection requirements, screen
34、ing sequences, sampling requirements and test and measurement procedures required for the assessment of liquid crystal display cells. Instead of the qualification approval procedure, the capability approval procedure can be applied for all products manufactured in a defined process. 2 Normative refe
35、rences 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.
36、IEC 61747-1-1:2014, Liquid crystal display devices Part 1-1: Generic Generic specification IEC 61747-10-1, Liquid crystal display devices Part 10-1: Environmental, endurance and mechanical test methods Mechanical IEC 61747-10-2, Liquid crystal display devices Part 10-2: Environmental, endurance and
37、mechanical test methods Environmental and endurance 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 production line arrangement of process operations in production permitting sequential occurrence at various stages of production EXAMPLE Examp
38、les of processes: a) electrode patterning process; b) alignment treatment process; c) assembly process; d) liquid crystal material filling process; e) finishing process; f) inspection process. Note 1 to entry: Quality assessment procedures are not included in these phases. 6 IEC 61747-3:2015 IEC 201
39、5 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 3.3 major changes any change in the manufacturing process or technology which could affect the quality or performance of a product suppli
40、ed to an approved specification, or which could require a product to be transferred from one similarity group to another group EXAMPLE Examples of major changes: a) electrode patterning: completely different pattern; b) material of substrate: thickness of glass substrate; c) type of LC material: typ
41、e of electro-optical effect, e.g. TN, STN, etc.; d) pin assignment change. Note 1 to entry: See 4.4 below. Note 2 to entry: Equipment change without changing the technology is not considered as a major change. Note 3 to entry: It is the responsibility of the designated management representative (DMR
42、) to decide whether the change is major or not. Note 4 to entry: Any major change is only to be implemented with notification and demonstration by test evidence of quality. 4 Quality assessment procedure 4.1 Primary stage of manufacture The primary stage of manufacture of liquid crystal display cell
43、s 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 manufacturing process operations from the primary stage to the last step for the
44、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 direction. c) Assembly process This process is the set of manufacturing process ope
45、rations comprising the seal printing and the transfer plate assembling. d) Liquid crystal material filling process This process is the set of manufacturing process operations comprising the filling of liquid crystal material between the two parallel glass substrates, and the sealing. e) Finishing pr
46、ocess This process is the final set of manufacturing process operations comprising the fitting of polarizer and reflector, as well as the marking. f) Inspection process IEC 61747-3:2015 IEC 2015 7 This process is the final set of process operations before lot release, comprising visual inspection of
47、 dimensions and electrical and optical characteristics. 4.3 Subcontracting The approved manufacturer shall ensure that 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, unconditiona
48、lly, including screening steps which are incorporated in them. Screening operations applied after the assembly process may also be independently subcontracted. b) It shall be ensured that the DMR that is certifying the components has been provided with the full quality assessment and inspection docu
49、mentation of any operation outside the specified geographical area. The documentation 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 DMR shall be provided with, and shall agree with the procedures for the transfer of the parts from the place of manufacture within the specified geographical ar
