IEC 61747-3:2015

Liquid crystal display devices - Part 3: Liquid crystal display (LCD) cells - Sectional specification

IEC 61747-3:2015(E) applies to liquid crystal cells of the segment type monochrome. It gives details of the quality assessment procedures, 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, the capability approval procedure can be applied for all products manufactured in a defined process. This edition includes the following significant technical changes with respect to the previous edition:
a) All the references to IECQ and QC were removed in accordance with ISO/IEC Directives Part 2, 6.7.1 and 6.7.2;
b) Updated normative references.
This publication is to be read in conjunction with IEC 61747-1-1:2014.

General Information

• Status: Published
• Publication Date: 08-Apr-2015
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 31.120 - Electronic display devices
• ICS: 33.060.20 - Receiving and transmitting equipment
• ICS: 33.060.30 - Radio relay and fixed satellite communications systems
• Technical Committee: TC 110 - Electronic displays
• Drafting Committee: WG 2 - TC 110/WG 2
• Current Stage: PPUB - Publication issued
• Start Date: 30-Jun-2015
• Completion Date: 09-Apr-2015

Relations

• Revises: IEC 61747-3:2006 - Liquid crystal display devices - Part 3: Liquid crystal display (LCD) cells - Sectional specification
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61747-3 ®
Edition 3.0 2015-04
INTERNATIONAL
STANDARD
Liquid crystal display devices –
Part 3: Liquid crystal display (LCD) cells – Sectional specification

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IEC 61747-3 ®
Edition 3.0 2015-04
INTERNATIONAL
STANDARD
Liquid crystal display devices –

Part 3: Liquid crystal display (LCD) cells – Sectional specification

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.120 ISBN 978-2-8322-2570-7

– 2 – IEC 61747-3:2015 © IEC 2015
CONTENTS
FOREWORD . 3
1 Scope . 5
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 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 – 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 – Qualification 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 tests . 15
Table 9 – Screening test item and conditions . 15

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LIQUID CRYSTAL DISPLAY DEVICES –

Part 3: Liquid crystal display (LCD) cells –
Sectional specification
FOREWORD
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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. 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 references 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 for 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 found 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 stability 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.

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, screening 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 references
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.
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
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 Examples of processes:
...