EN 61747-1:1999/A1:2003

SLOVENSKI SIST EN 61747-1:2002/A1:2005

STANDARD
december 2005
Prikazalniški elementi s tekočimi kristali in polprevodniki – 1. del: Generična
specifikacija – Dopolnilo A1 (IEC 61747-1:1998/A1:2003)
Liquid crystal and solid-state display devices - Part 1: Generic specification –
Amendment A1 (IEC 61747-1:1998/A1:2003)
ICS 31.120 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 61747-1/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM April 2003
ICS 31.120
English version
Liquid crystal and solid-state display devices
Part 1: Generic specification
(IEC 61747-1:1998/A1:2003)
Dispositifs d'affichage à cristaux liquides Flüssigkristall- und Halbleiter-Anzeige-
et à semiconducteurs Bauelemente
Partie 1: Spécification générique Teil 1: Fachgrundspezifikation
(CEI 61747-1:1998/A1:2003) (IEC 61747-1:1998/A1:2003)

This amendment A1 modifies the European Standard EN 61747-1:1999; it was approved by CENELEC
on 2003-04-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this amendment 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 Central Secretariat or to any CENELEC member.

This amendment 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
Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 61747-1:1999/A1:2003 E

Foreword
The text of document 47C/288/FDIS, future amendment 1 to IEC 61747-1:1998, prepared by SC 47C,
Flat panel display devices, of IEC TC 47, Semiconductor devices, was submitted to the
IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to EN 61747-1:1999
on 2003-04-01.
The following dates were fixed:
– latest date by which the amendment has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2004-01-01
– latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2006-04-01

Annexes designated "normative" are part of the body of the standard.
In this standard, annex ZA is normative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of amendment 1:2003 to the International Standard IEC 61747-1:1998 was approved by
CENELEC as an amendment to the European Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
ISO 9241-3 NOTE Harmonized as EN 29241-3:1993 (not modified).
__________
- 3 - EN 61747-1:1999/A1:2003
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
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
Add:
IEC 61747-2-1 1998 Liquid crystal and solid-state display EN 61747-2-1 2001
devices
Part 2-1: Passive matrix monochrome
LCD modules - Blank detail specification

IEC 61747-3-1 1998 Part 3-1: Liquid crystal display (LCD) EN 61747-3-1 1999
cells - Blank detail specification

IEC 61747-4 1998 Part 4: Liquid crystal display modules EN 61747-4 1998
and cells - Essential ratings and
characteristics
NORME CEI
INTERNATIONALE IEC
61747-1
INTERNATIONAL
STANDARD
AMENDEMENT 1
AMENDMENT 1
2003-03
Amendement 1
Dispositifs d'affichage à cristaux liquides
et à semiconducteurs –
Partie 1:
Spécification générique
Amendment 1
Liquid crystal and solid-state
display devices –
Part 1:
Generic specification
© IEC 2003 Droits de reproduction réservés ⎯ Copyright - all rights reserved
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch  Web: www.iec.ch
CODE PRIX
M
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical Commission
ɆɟɠɞɭɧɚɪɨɞɧɚɹɗɥɟɤɬɪɨɬɟɯɧɢɱɟɫɤɚɹɄɨɦɢɫɫɢɹ
Pour prix, voir catalogue en vigueur
For price, see current catalogue

61747-1 Amend. 1 © IEC:2003 – 3 –
FOREWORD
This amendment has been prepared by subcommittee 47C: Flat panel display devices, of
IEC technical committee 47: Semiconductor devices.
The text of this amendment is based on the following documents:
FDIS Report on voting
47C/288/FDIS 47C/294/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until 2009. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
_____________
Page 9
2 Normative references
Insert, on page 11, in the existing list, the following new references:
IEC 61747-2-1:1998, Liquid crystal and solid-state display devices – Part 2-1: Passive matrix
monochrome LCD modules – Blank detail specification
IEC 61747-3-1:1998, Liquid crystal and solid-state display devices – Part 3-1: Liquid crystal
display (LCD) cells – Blank detail specification
IEC 61747-4:1998, Liquid crystal and solid-state display devices – Part 4: Liquid crystal
display modules and cells – Essential ratings and characteristics
Page 11
3 Terminology
3.1 Physical concepts
Add, after definition 3.1.26 on page 17, the following new definitions 3.1.27 to 3.1.36:

61747-1 Amend. 1 © IEC:2003 – 5 –
3.1.27
anti-ferroelectric liquid crystal
AFLC
type of smectic liquid crystal having no macroscopic electrical polarization at zero external field
NOTE It has a paraelectric state with layers of alternating polarity of permanent dipoles without external electric
field, and it transfers to a ferroelectric state of parallel alignment by applying electric field.
3.1.28
cell gap
thickness of the liquid crystal layer between the two support plates
3.1.29
domain
region having well-defined boundary in which liquid crystal molecules have the same director
orientation
3.1.30
helical pitch
chiral pitch
periodic distance needed for directors to rotate by 360° in a helically structured liquid crystal
3.1.31
polymer dispersed liquid crystal
liquid crystal polymer composites within which there exists at least two different phases
3.1.32
phase transition
phenomenon in which liquid crystal changes from one phase to another, e.g. from smectic to
nematic, solid to smectic, or nematic to isotropic liquid
3.1.33
rubbing direction
rubbing axis
direction/axis of rubbing the alignment layer in order to align liquid crystal molecules
3.1.34
super twisted nematic liquid crystal
STN
nematic liquid crystal which possesses a twisted structure from 180° to 270° between the
support plates
3.1.35
twisted nematic liquid crystal
TN
nematic liquid crystal which possesses a twisted structure of around 90° between the support
plates
3.1.36
voltage holding ratio
ratio of holding voltage to the initially applied signal voltage at opposite facing electrodes in
a liquid crystal cell
61747-1 Amend. 1 © IEC:2003 – 7 –
Page 17
3.2 General terms
Add, after definition 3.2.17 on page 19, the following new definitions 3.2.18 to 3.2.51:
3.2.18
achromatic display
display that generates an image which is devoid of hue
3.2.19
backlight
light source system that illuminates light uniformly onto a liquid crystal display cell from
behind
3.2.20
black matrix
film-like structure that shades unwanted light to pass between dot electrodes in a matrix
display
NOTE Normally formed with a metal or organic film patterned on the substrate.
3.2.21
colour filter
filter that selectively transmits light of a specific wave length range in colour liquid crystal
display devices
NOTE Generally, three primary colour (red, green, blue) filters are fitted onto the substrate.
3.2.22
common electrode
3.2.22.1 electrode facing segment electrodes in a segment display
3.2.22.2 scanning electrode in a passive matrix display
3.2.22.3 electrode pairing with pixel electrodes fitted with transistors in an active matrix
display with thin film transistors
3.2.23
data electrode
signal electrode
electrode applied with the data signal voltage synchronized with the scanning signals in a
multiplexed display
3.2.24
diffusing plate
diffuser
optical component used to diffuse light in order to illuminate it onto the display device in a
uniform manner
3.2.25
direct backlight
light source system in which light tubes are placed directly underneath a display screen and
illumination is made uniform using optical components such as a reflector and diffuser

61747-1 Amend. 1 © IEC:2003 – 9 –
3.2.26
edge light
side light
light source system in which light source tubes are mounted on one or more sides of a display
or a light guide plate
3.2.27
front projection display
form of projection display whereby the display device and the observer are located on the
same side of the screen on which the image is displayed
3.2.28
LCD controller
circuit that supplies necessary control signals to driver circuits or ICs for an LCD
3.2.29
liquid crystal display device
display device using electro-optical effect of liquid crystal
NOTE A general term for liquid crystal display cells and liquid crystal display modules.
3.2.30
light guide plate
optical component used to guide and diffuse light
3.2.31
metal insulator metal
MIM
thin film diode that has the non-linear conductivity of an insulation film sandwiched between
metal films
3.2.32
monolithic driver
built-in driver
IC driver built in the same substrate as the active elements of pixels in an active matrix LCD
3.2.33
multicolour display
chromatic display that can utilize two or more, but limited number of colours
3.2.34
normally black (mode)
mode in which the luminance of pixels in the OFF voltage state is less than that in the ON
voltage state
3.2.35
normally white (mode)
mode in which the luminance of pixels in the OFF voltage state is greater than that in the ON
voltage state
3.2.36
passive matrix (addressed) display
matrix addressed display device in which each pixel is addressed directly by applied signals
on the addressing and data lines

61747-1 Amend. 1 © IEC:2003 – 11 –
3.2.37
polarizer
optical component that intends to transmit a specific polarized light
3.2.38
projection display
display device which projects a display image onto a screen by an optical system
3.2.39
rear projection display
form of projection display whereby the display device and the observer are located on the
opposite sides of the screen on which the image is displayed
3.2.40
reflector
3.2.40.1 optical component used in a reflective type LCD to reflect incident light
3.2.40.2 optical component in a backlight system to enhance light intensity by reflection
3.2.41
retardation film
polymer optical-anisotropic film that possesses either single or double optical axis
3.2.42
scanning electrode
electrode applied with a scanning signal voltage in a matrix display
3.2.43
segment display
display device showing only alphanumeric characters and/or fixed patterns made of
segmented electrodes which may be different in size and orientation
3.2.44
segment electrode
3.2.44.1 electrode forming a part of alphanumeric characters and/or fixed patterns in
a segment display
3.2.44.2 data or signal electrode in a passive matrix display
3.2.45
storage capacitor
capacitor parallel to liquid crystal element to hold a signal voltage applied to each pixel or dot
in an active matrix display
3.2.46
substrate
plate, generally transparent, made of e.g. glass or plastic sheet, covered with several layers
(electrode, sealing and surface alignment layers), forming the mechanical structure of a liquid
crystal cell
3.2.47
tape carrier package
TCP
IC package in which chips are mounted on a flexible printed wiring board

61747-1 Amend. 1 © IEC:2003 – 13 –
3.2.48
thin film diode
TFD
diode formed on the surface of a substrate as a thin film
3.2.49
thin film transistor
TFT
transistor formed on the surface of a substrate as a thin film
3.2.50
transflector
optical component used in a transflective type LCD to partially reflect and partially transmit
incident light
3.2.51
transparent conductive layer
transparent electrode
layer or electrode which has both electric conductivity and transmittance of visible light
NOTE A typical material is ITO (indium tin oxide).
Page 19
3.3 Terms related to ratings and characteristics
Add, after definition 3.3.11 on page 23, the following new definitions 3.3.12 to 3.3.41:
3.3.12
after image
short time remnant of an image on the screen after the actual image is removed
3.3.13
aperture ratio
fill factor
ratio of the pixel area available for light modulation to the total geometrical pixel area
3.3.14
bubble
visual defect caused by a cavity in the liquid crystal material or paste of
...