IEC 61747-2-1:2013

IEC 61747-2-1 ®
Edition 2.0 2013-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Liquid crystal display devices –
Part 2-1: Passive matrix monochrome LCD modules – Blank detail specification

Dispositifs d’affichage à cristaux liquides –
Partie 2-1: Modules d'affichage à cristaux liquides (LCD) monochromes à
matrice passive – Spécification particulière cadre

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IEC 61747-2-1 ®
Edition 2.0 2013-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Liquid crystal display devices –

Part 2-1: Passive matrix monochrome LCD modules – Blank detail specification

Dispositifs d’affichage à cristaux liquides –

Partie 2-1: Modules d'affichage à cristaux liquides (LCD) monochromes à

matrice passive – Spécification particulière cadre

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX N
ICS 31.120 ISBN 978-2-83220-689-8

– 2 – 61747-2-1 © IEC:2013
CONTENTS
FOREWORD . 3
1 General . 5
1.1 Scope . 5
1.2 Normative references . 5
2 Guidance for preparation of a detail specification . 5
3 Marking . 7
4 Ordering information . 7
5 Limiting values (absolute maximum rating system) . 7
6 Operating range and electrical and optical characteristics . 9
6.1 Recommended operating range . 9
6.2 Electrical and optical characteristics . 10
7 Test conditions and inspection requirements . 11
8 Qualification approval test (group D) . 13
9 Additional information . 13
Annex A (informative) Additional information items . 14

Figure 1 – Block diagram examples for explanation of supply voltages . 9

Table 1 – Limiting values . 8
Table 2 – Recommended operating range . 10
Table 3 – Electrical and optical characteristics . 11
Table 4 – Group A – Lot-by-lot inspection . 12
Table 5 – Group B – Lot-by-lot inspection . 12
Table 6 – Group C – Periodic tests . 12

61747-2-1 © IEC:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LIQUID CRYSTAL DISPLAY DEVICES –

Part 2-1: Passive matrix monochrome LCD modules –
Blank detail specification
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide 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
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agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
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expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
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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 of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61747-2-1 has been prepared by IEC technical committee 110:
Electronic display devices.
This second edition of IEC 61747-2-1 cancels and replaces the first edition published in 1998,
and constitutes a technical revision. The main changes from the previous edition are as
follows:
– several words and test conditions were added in Clause 7 and Clause 8;
– the new edition was editorially changed according to the current ISO/IEC Directives –
Part 2.
– 4 – 61747-2-1 © IEC:2013
The text of this standard is based on the following documents:
CDV Report on voting
110/371/CDV 110/446/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.
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.
61747-2-1 © IEC:2013 – 5 –
LIQUID CRYSTAL DISPLAY DEVICES –

Part 2-1: Passive matrix monochrome LCD modules –
Blank detail specification
1 General
1.1 Scope
This part of IEC 61747 serves as a Blank Detail Specification (BDS) for a high quality
approval system and contains requirements for style and layout and minimum content of detail
specifications. These requirements are applicable when the detail specification is published
(e.g. for standard product).
1.2 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 61747-1:2003, Liquid crystal and solid-state display devices – Part 1: Generic
specification
IEC 61747-2:1998, Liquid crystal and solid-state display devices – Part 2: Liquid crystal
display modules – Sectional specification
IEC 61747-5:1998, Liquid crystal and solid-state display devices – Part 5: Environmental,
endurance and mechanical test methods
2 Guidance for preparation of a detail specification
The front page layout is illustrated. When the detail specifications for customer circuits are not
published, the layout requirements of the blank detail specification are optional. A suggested
front page layout is also illustrated. An example of a Customer Detail Specification (CDS) is
also given.
The numbers between square brackets on the front page of the blank detail specification
illustrated correspond to the following indications which should be given:
[1] The name of the National Standards Organization under whose authority the detail
specification is issued.
[2] The IECQ number of the detail specification.
[3] The numbers and issue numbers of the generic and sectional specifications.
[4] The national number of the detail specification, date of issue and any further information,
if required by the national system.
[5] Type number(s) of component.
[6] Information on typical construction and applications. If a device is designed to satisfy
several applications, this shall be stated here. Characteristics, limits and inspection

– 6 – 61747-2-1 © IEC:2013
requirements for these applications shall be met. If a device is electrostatic sensitive, or
contains hazardous materials, a caution statement shall be added in the detail
specification.
[7] Outline drawing and/or reference to the relevant document for outlines.
[8] Category of assessment quality.
[9] Reference data on the most important properties to permit comparison between types.
Layout of Blank Detail Specification (BDS):
[Name (address) of responsible NAI (and [1] [Number of IECQ detail specification [2]
possibly of body from which specification is available).] plus issue number and/or date.]
ELECTRONIC COMPONENTS OF [3]  [National number of detail specification] [4]
ASSESSED QUALITY IN ACCORDANCE WITH:
Generic specification:
IEC 61747-1/QC 720000
[and national references if different.] [This box need not be used if national number repeats
IECQ number.]
BLANK DETAIL SPECIFICATION FOR: PASSIVE MATRIX MONOCHROME LCD MODULES [5]
[Type number(s) of the relevant device(s) and if appropriate structurally similar devices.]
Ordering information: see Clause 5 of this specification.
Mechanical description Short description
Outline references: [7] Type of electro-optical effect [6]
e.g. – Twisted Nematic (TN), Supertwisted Nematic
[Mandatory if available, IEC and/or national number]
(STN), etc.
Structure:
Optical mode of operation:
e.g. – LCD with electronic circuits (IC) mounted
e.g. – reflective, transflective, transmissive
on cell substrate or separate PWB
– grey scale: number
– integrated backlight
– light image on a dark background, dark image

on a light background
Outline drawing and dimensions:
Preferred viewing direction:
– overall dimensions
Electrical specification:
– viewing area
e.g. – interface (supply, data)
– effective display area
– backlight (e.g. fluorescent lamp CCFL (cold
Display format:  cathode fluorescent lamp)/HCFL (hot cathode
fluorescent lamp), LED, EL)
– number of rows and columns
– pixel size Application(s):
– pixel pitch
e.g. – personal computer, automobile
Connection type:
Categories of assessed quality
e.g. – pin identification
[8]
– connector identification
[See 4.5 of the generic specification IEC 61747-1:2003.]
– type number of connector used
– type number of mating connector
Reference data [9]
Marking:
[The detail specification shall prescribe the information
to be marked on the device.]
[See Clause 4, and 4.4 of the generic specification.]
Mass:
Information about manufacturers who have components qualified to this detail specification is available in the
current qualified products list.

61747-2-1 © IEC:2013 – 7 –
3 Marking
Refer to A.1.
4 Ordering information
The following minimum information is necessary to order a specified device, unless otherwise
specified:
– precise type reference;
– IECQ reference of detail specification with issue number and/or date when relevant;
– category of assessed quality as defined in 4.5 of the generic specification
IEC 61747-1:2003 and, if required, screening sequence as defined in 4.8 of the sectional
specification IEC 61747-2:1998;
– any other particulars.
5 Limiting values (absolute maximum rating system)
The values in Table 1 apply over the operating temperature range unless otherwise specified.
Figure 1 shows the block diagram examples for explanation of supply voltages which are
denoted in Table 1. GND shows the ground voltage level.
The “X” denotes that a value shall be inserted in the detail specification. Repeat only
subclause numbers used with title. Any additional values shall be given at the appropriate
place, but without subclause number(s).

– 8 – 61747-2-1 © IEC:2013
Table 1 – Limiting values
Subclause Parameters Symbol Value Unit
Mini- Max-
mum imum
5.1 Operating ambient temperature T X X °C
op
5.2 Storage temperature T X X °C
stg
5.3 Supply voltage(s)
5.3.1 Supply voltage for logic drive V – V X X V

DD SS
V – V
5.3.2 Supply voltage for LCD drive X X V

DD EE
or
V – V
EE SS
or
V – V
O SS
or
V – V
DD O
5.4 Input signal voltage V X X V
IN
5.5
5.5.1 Backlight voltage (where appropriate) V X V
BL
5.5.2 Backlight current (where appropriate) I X mA
BL
5.6 Soldering temperature (where appropriate) T X °C
sld
Block diagram
The internal module circuitry is not required to be disclosed in either the BDS or the CDS.

61747-2-1 © IEC:2013 – 9 –
V (+) V (+)
DD EE
LCD LCD
V (GND)
V (+)
SS DD
module module
V (−) V (GND)
EE SS
Supply voltage for LCD drive: V − V Supply voltage for LCD drive: V − V
DD EE EE SS
Supply voltage for logic drive: V − V Supply voltage for logic drive: V − V
DD SS DD SS
V (+)
V (+)
DD
DD
LCD LCD
V (GND)
V
SS
O
module module
V (GND)
V
SS O
(−)
Supply voltage for LCD drive: V − V Supply voltage for LCD drive: V − V
O SS DD O
Supply voltage for logic drive: V − V Supply voltage for logic drive: V − V
DD SS DD SS
IEC  594/13
Figure 1 – Block diagram examples for explanation of supply voltages
6 Operating range and electrical and optical characteristics
6.1 Recommended operating range
The “X” denotes that a value in Table 2 shall be inserted in the detail specification.

– 10 – 61747-2-1 © IEC:2013
Table 2 – Recommended operating range
Subclause Characteristics at T = 25 °C Symbol Value Unit
op
unless otherwise specified Minim Maxim
um um
6.1.1 Operating voltage range of supply voltage(s)
6.1.1.1 Supply voltage for logic drive V – V
X X V
DD SS
6.1.1.2 Supply voltage for LCD drive V – V X X V
DD EE
or
V – V
EE SS
or
V – V
O SS
or
V – V
DD O
6.1.2 Operating voltage range of input signal voltages V
IN
6.1.2.1 Input signal voltage, high V X X V
IH
6.1.2.2 Input signal voltage, low V X X V
IL
6.1.3 Operating voltage range of backlight voltages V X X V
BL
(where appropriate)
6.1.4 Operating frequency range(s) f
op
(where appropriate)
6.1.4.1 Operating frame frequency range f X X Hz
FRM
and/or
6.1.4.2 Oscillator frequency range F X X Hz
osc
6.2 Electrical and optical characteristics
See Clause 8 for inspection requirements.
The “X” denotes that a value in Table 3 shall be inserted in the detail specification. Repeat
only the subclause numbers used with the title. Any additional characteristics shall be given at
the appropriate place but without the subclause number(s).
When several devices are defined in the same detail specification, the relevant values shall
be given on successive lines, avoiding repeating identical values.

61747-2-1 © IEC:2013 – 11 –
Table 3 – Electrical and optical characteristics
Subclause Characteristics and conditions at T Symbol Unit Value Tested
op
= 25 °C unless otherwise specified  Mini Maxi In sub-
mum mum group
6.2.1 Supply current (without BLU) at specified I mA X A3
tot
frame frequency, specified operating supply
or
voltage, with an adequate display pattern and
I
other electrical driving conditions chosen in DD
order to achieve maximum supply current
and/or
I
EE
6.2.2 Operating backlight current at specified I mA X A3
BL
operating backlight voltage (where
appropriate)
6.2.3.1 Contrast ratio (direct beam and/or diffused CR X A2

dir
light) with specified light source at specified
and/or
viewing angle
CR
diff
6.2.3.2 Contrast ratio (direct beam and/or diffused CR X C2b
dir
light)
and/or
T =maximum and minimum or specified CR
op diff
temperature, light source and specified
viewing direction
6.2.4 Luminance L cd/m X A2
Specified measuring method and conditions
6.2.5 Viewing angle range at specified definition of deg X X C2a
θ
H
viewing direction and contrast ratio

and
deg X X
θ
V
6.2.6 Turn-on time at specified temperature t ms X C2a
on
6.2.7 Turn-off time at specified temperature t ms X C2a
off
6.2.8 Transmittance (regular and/or diffuse) at
τ
r
specified measuring method and conditions
% X C2a
(where appropriate) and/or
τ
d
6.2.9 Reflectance (regular and/or diffuse) at
ρ
r
specified measuring method and conditions
% X X C2a
and/or
(where appropriate)
ρ
d
7 Test conditions and inspection requirements
These are given in the following Table 4, Table 5 and Table 6, where the values and exact
test conditions to be used should be specified as required for a given type, and as required
by the relevant test in the relevant publications.
When several devices are included in the same detail specification, the relevant conditions
and/or values should be given in sequence, avoiding where possible repetition of identical
conditions and/or values.
Tests shall be made at 25 °C, unless otherwise specified.
Tests marked (D) are destructive.

– 12 – 61747-2-1 © IEC:2013
Table 4 – Group A – Lot-by-lot inspection
Subgroup Tests Conditions at T = 25 °C Limits
op
unless otherwise specified
Minimum Maximum
(see Clause 4 of
the generic specification
IEC 61747-1:2003)
A1 External visual examination See 4.2.1 of the
(no electrical connection) generic specification
IEC 61747-1:2003
A2 Visual defects See IEC 61747-5
Contrast ratio See 6.2.3.1 X
Operating display luminance See 6.2.4 X
(where appropriate)
A3 Supply current See 6.2.1 X
Operating backlight current See 6.2.2 X
(where appropriate)
Table 5 – Group B – Lot-by-lot inspection
(In the case of Category I, see 4.5 of the generic specification IEC 61747-1:2003.)
Subgroup Tests Conditions at T = 25 °C Limits
op
unless otherwise specified
Minimum Maximum
(see Clause 4 of
the generic specification
IEC 61747-1:2003)
B1 Dimensions See Clause 1
Table 6 – Group C – Periodic tests
Subgroup Tests Limits
Conditions at T = 25 °C
op
unless otherwise specified (see
Minim Maxim
clause 4 of the generic
um um
specification IEC 61747-1:2003)
C1 Dimensions See Clause 1
C2a Viewing angle range See 6.2.5 X X
Turn-on time See 6.2.6 X
Turn-off time See 6.2.7 X
Transmittance (where appropriate) See 6.2.8 X
Reflectance (where appropriate) See 6.2.9 X X
C2b Contrast ratio See 6.2.3.2 X
C4 Bond strength for external pins (D) See 2.6 of IEC 61747-5:1998
C5 Change of temperature (D) See 3.1 of IEC 61747-5:1998
C6 Shock (D) See 2.4 of IEC 61747-5:1998
Vibration (D) See 2.3 of IEC 61747-5:1998
C7 Damp heat cyclic (12+12-hour cycle) (D) See 3.6 of IEC 61747-5:1998
C8 Electrical endurance (D) To be specified in the detail
specification
C9 Storage (at high temperature) See 3.2 of IEC 61747-5:1998
Storage (at low temperature) See 3.3 of IEC 61747-5:1998
C10 Low air pressure (D) See 3.4 of IEC 61747-5:1998
C11 Permanence of marking (D) See 4.1 of IEC 61747-5:1998
(where appropriate)
C12 ESD (D) To be specified in the detail
specification
CRRL Attributes information for C5, C6, C7, C8, C9 and C11

61747-2-1 © IEC:2013 – 13 –
8 Qualification approval test (group D)
When
...